REFERENCE_ID int64 273 7.3M | TITLE stringlengths 4 390 | AUTHORS stringlengths 5 1.43k ⌀ | YEAR int64 1.85k 2.02k ⌀ | ABSTRACT stringlengths 1 18.4k ⌀ | CITED int64 0 1 |
|---|---|---|---|---|---|
88,434 | The global atmospheric environment for the next generation | Dentener, F; Stevenson, D; Ellingsen, K; Van Noije, T; Schultz, M; Amann, M; Atherton, C; Bell, N; Bergmann, D; Bey, I; Bouwman, L; Butler, T; Cofala, J; Collins, B; Drevet, J; Doherty, R; Eickhout, B; Eskes, H; Fiore, A; Gauss, M; Hauglustaine, D; Horowitz, L; Isaksen, ISA; Josse, B; Lawrence, M; Krol, M; Lamarque, JF... | 2,006 | Air quality, ecosystem exposure to nitrogen deposition, and climate change are intimately coupled problems: we assess changes in the global atmospheric environment between 2000 and 2030 using 26 state-of-the-art global atmospheric chemistry models and three different emissions scenarios. The first (CLE) scenario reflec... | 0 |
87,582 | Aircraft vertical profiles of trace gas and aerosol pollution over the mid-Atlantic United States: Statistics and meteorological cluster analysis | Taubman, BF; Hains, JC; Thompson, AM; Marufu, LT; Doddridge, BG; Stehr, JW; Piety, CA; Dickerson, RR | 2,006 | From 1997 to 2003, airborne measurements of O-3, CO, SO2, and aerosol properties were made during summertime air pollution episodes over the mid-Atlantic United States (34.7-44.6 degrees N, 68.4-81.6 degrees W) as part of the Regional Atmospheric Measurement, Modeling, and Prediction Program (RAMMPP). Little diurnal va... | 1 |
90,744 | Gaseous air pollutants and hospitalization for respiratory disease in the neonatal period | Dales, RE; Cakmak, S; Doiron, MS | 2,006 | OBJECTIVE: Current levels of ambient air pollution are associated with morbidity and mortality in the general population. To determine the influence of gaseous air pollutants on neonatal respiratory morbidity, we tested the association between daily respiratory hospitalizations and daily concentrations of ambient air p... | 1 |
126,170 | The role of traffic emissions from weekends and weekdays fine PM data in Milan | Lonati, G; Giugliano, M; Cernuschi, S | 2,006 | A receptor-oriented and a source-oriented approach are applied to assess the contribution of traffic emissions to concentration levels of fine particulate matter in Milan (Italy). Both the approaches are based on the comparison between seasonal weekends and weekdays data. Relative differences observed between Sundays a... | 0 |
595,137 | An ozone monitoring instrument based on the tungsten trioxide (WO3) semiconductor | Utembe, SR; Hansford, GM; Sanderson, MG; Freshwater, RA; Pratt, KFE; Williams, DE; Cox, RA; Jones, RL | 2,006 | Novel sensors based on tungsten trioxide (WO3) semiconductors have been found to hold much promise as a cheaper alternative for ozone monitoring. The sensitivity of the metal oxide to ozone is owed to the presence of surface oxygen vacancies. The filling of oxygen vacancies by the decomposing ozone traps free charge ca... | 1 |
191,594 | Ozone-induced expression of the Arabidopsis FAD7 gene requires salicylic acid, but not NPR1 and SID2 | Yaeno, T; Saito, B; Katsuki, T; Iba, K | 2,006 | The Arabidopsis FAD7 gene encodes a plastid omega-3 fatty acid desaturase that catalyzes the desaturation of dienoic fatty acids to trienoic fatty acids in chloroplast membrane lipids. The expression of FAD7 was rapidly and locally induced by ozone exposure, which causes oxidative responses equivalent to pathogen-induc... | 0 |
670,834 | Modulation of cutaneous wound healing by ozone: Differences between young and aged mice | Lim, Y; Phung, AD; Corbacho, AM; Aung, HH; Maioli, E; Reznick, AZ; Cross, CE; Davis, PA; Valacchi, G | 2,006 | Cutaneous tissues are frequently exposed to prooxidative environments, including UV radiation and air pollutants. Among the latter, ozone (O3) is of particular concern because of its high and dominating presence in photochemical smog. It is well known that O3 depletes small molecular weight antioxidants, oxidizes prote... | 1 |
180,028 | Spatial variability of summertime tropospheric ozone over the continental United States: Implications of an evaluation of the CMAQ model | Tong, DQ; Mauzerall, DL | 2,006 | This study evaluates the ability of the Community Multiscale Air Quality (CMAQ) model to simulate the spatial variability of summertime ozone (O"3) at the surface and in the free troposphere over the continental United States. Simulated... | 0 |
89,775 | Seasonal variation of air pollution index: Hong Kong case study | Wang, XK; Lu, WZ | 2,006 | #Air pollution is an important and popular topic in Hong Kong as concerns have been raised about the health impacts caused by vehicle exhausts in recent years. In Hong Kong, sulphur dioxide SO2, nitrogen dioxide (NO2), nitric oxide (NO), carbon monoxide (CO), and respirable suspended particulates (RSP) are major air po... | 0 |
596,408 | Oxidative damage in substantia nigra and striatum of rats chronically exposed to ozone | Pereyra-Mu?oz, N; Rugerio-Vargas, C; Angoa-Perez, M; Borgonio-Perez, G; Rivas-Arancibia, S | 2,006 | The purpose of this work was to study if chronic low-dose ozone exposure could per se induce oxidative damage to neurons of striatum and substantia nigra. Thirty male Wistar rats were divided into three groups?Group 1: exposed to an air stream free of ozone; Group 2: exposed for 15 days to ozone; Group 3: exposed for 3... | 1 |
89,035 | Application of a geographic information system to explore associations between air pollution and micronucleus frequencies in African American children and adults | Huen, K; Gunn, L; Duramad, P; Jeng, M; Scalf, R; Holland, N | 2,006 | Exposure to air pollution has been associated with adverse respiratory and cardiovascular health outcomes in both children and adults. In this study, we used geographic information systems (GISs) to explore possible associations between chromosomal damage in 65 African American children and their mothers from Oakland, ... | 1 |
690,131 | The role of inflammatory mediators in the synergistic toxicity of ozone and 1-The role of inflammatory mediators in the synnitronaphthalene in rat airways | Schmelzer, K; Wheelock, A; Dettmer, K; Morin, D; Hammock, B | 2,006 | Ambient air is polluted with a mixture of pulmonary toxicants. Previous studies indicate that prior exposure to atmospheric oxidant pollutants such as ozone may significantly alter the response to other pollutants, such as 1-nitronaphthalene (1-NN) . 1-NN, a component of the particulate exhaust from diesel engines, has... | 0 |
91,253 | Lung radiology and pulmonary function of children chronically exposed to air pollution | Calderon-Garcidue?as, L; Mora-Tiscareno, A; Fordham, LA; Chung, CJ; Valencia-Salazar, G; Flores-Gomez, S; Solt, AC; Gomez-Del Campo, A; Jardon-Torres, R; Henriquez-Roldan, C; Hazucha, MJ; Reed, W | 2,006 | We analyzed the chest radiographs (CXRs) of 249 clinically healthy children, 230 from southwest Mexico City and 19 from Tlaxcala. In contrast to children from Tlaxcala, children from southwest Mexico City were chronically exposed to ozone levels exceeding the U.S. National Ambient Air Quality Standards for an average o... | 1 |
191,445 | Hydrogen peroxide concentrations in leaves under natural conditions | Cheeseman, JM | 2,006 | While H2O2 has been implicated in numerous plant environmental responses, normal levels and variabilities are poorly established, and estimates of leaf tissue concentrations span more than three orders of magnitude, even in a single species under similar conditions. Here, leaf tissue H2O2 contents under natural conditi... | 0 |
595,159 | Tropospheric ozone determined from Aura OMI and MLS: Evaluation of measurements and comparison with the Global Modeling Initiative's Chemical Transport Model | Ziemke, JR; Chandra, S; Duncan, BN; Froidevaux, L; Bhartia, PK; Levelt, PF; Waters, JW | 2,006 | Ozone measurements from the OMI and MLS instruments on board the Aura satellite are used for deriving global distributions of tropospheric column ozone (TCO). TCO is determined using the tropospheric ozone residual method which involves subtracting measurements of MLS stratospheric column ozone (SCO) from OMI total col... | 1 |
195,733 | An axisymmetric single-path model for gas transport in the conducting airways | Madasu, S; Borhan, A; Ultman, JS | 2,006 | In conventional one-dimensional single-path models, radially averaged concentration is calculated as a function of time and longitudinal position in the lungs, and coupled convection and diffusion are accounted for with a dispersion coefficient. The axisymmetric single-path model developed in this paper is a two-dimens... | 0 |
89,425 | Photosensitized reduction of nitrogen dioxide on humic acid as a source of nitrous acid | Stemmler, K; Ammann, M; Donders, C; Kleffmann, J; George, C | 2,006 | Nitrous acid is a significant photochemical precursor of the hydroxyl radical the key oxidant in the degradation of most air pollutants in the troposphere. The sources of nitrous acid in the troposphere, however, are still poorly understood. Recent atmospheric measurements revealed a strongly enhanced formation of nitr... | 0 |
194,358 | The use of ambient air quality modeling to estimate individual and population exposure for human health research: A case study of ozone in the Northern Georgia region of the United States | Bell, ML | 2,006 | Ambient monitors are commonly used to estimate exposure for epidemiological studies, and air quality modeling is infrequently alied. However air quality modeling systems have the potential to alleviate some, although not all, of the limitations of monitoring networks. To investigate this application, exposure estimates... | 1 |
622,723 | Ozone s Impact on Public Health: Contributions from Indoor Exposures to Ozone and Products of Ozone-Initiated Chemistry | Weschler, CJ | 2,006 | Objective The associations between ozone concentrations measured outdoors and both morbidity and mortality may be partially due to indoor exposures to ozone and ozone-initiated oxidation products. In this article I examine the contributions of such indoor exposures to overall ozone-related health effects by extensive r... | 0 |
196,504 | Cytogenetic damage in buccal epithelia and peripheral lymphocytes of young healthy individuals exposed to ozone | Chen, C; Arjomandi, M; Qin, H; Balmes, J; Tager, I; Holland, N | 2,006 | Ozone (O(3)) is an important component of air pollution and a potent oxidant of biomolecules. To address the hypothesis that elevated ambient O(3) can induce cytogenetic damage in healthy people, we collected buccal cells from two groups of students (N = 126) from University of California, Berkeley, in the spring and a... | 1 |
199,321 | Physiological responses to cumulative ozone uptake in two white clover (Trifolium repens L. cv. Regal) clones with different ozone sensitivity | Crous, KY; Vandermeiren, K; Ceulemans, R | 2,006 | Critical ozone levels must be determined to assess ozone damage on plants, but the cumulative ozone exposure concept of 'AOT40' fails to consider actual ozone uptake via the stomata. While the use of ozone fluxes to assess ozone-induced plant responses is mechanistically appropriate, few studies have examined the relat... | 1 |
89,851 | The PASTURE project: EU support for the improvement of knowledge about risk factors and preventive factors for atopy in Europe | Von Mutius, E; Schmid, S | 2,006 | Since January 2002, the European Commission is funding a large project, 'Protection against Allergy--Study in Rural Environments' (PASTURE; contract no. QLK4-2001-00250), under the Fifth Framework Program in the field of epidemiology of allergic diseases. The aim of this paper was to describe the background and design ... | 0 |
89,823 | A case study of personal exposure to nitrogen dioxide using a new high sensitive diffusive sampler | Piechocki-Minguy, A; Plaisance, H; Schadkowski, C; Sagnier, I; Saison, JY; Galloo, JC; Guillermo, R | 2,006 | Personal NO(2) exposure measurements were achieved during two campaigns in a large northern France city. These campaigns were following an innovating approach based on sequential exposure measurements by diffusive samplers distinguishing four categories of microenvironments ("home", "other indoor places", "transport" a... | 0 |
88,976 | The relationship between changes in daily air pollution and hospitalizations in Perth, Australia 1992-1998: A case-crossover study | Hinwood, AL; De Klerk, N; Rodriguez, C; Jacoby, P; Runnion, T; Rye, P; Landau, L; Murray, F; Feldwick, M; Spickett, J | 2,006 | A case-crossover study was undertaken to investigate the relationship between daily air pollutant concentrations and daily hospitalizations for selected disease categories in Perth, Western Australia. Daily measurements of particles (measured by nephelometry and PM2.5), photochemical oxidants (measured as ozone), nitro... | 1 |
695,498 | Workgroup report: Indoor chemistry and health | Weschler, CJ; Wells, JR; Poppendieck, D; Hubbard, H; Pearce, TA | 2,006 | altering the concentrations of both reactants and products. Such chemistry is often the major source of free radicals and other short-lived reactive species in indoor environments. To what extent do the products of indoor chemistry affect human health? To address this question, the National Institute for Occupational S... | 0 |
98,539 | Exposure to environmental ozone alters semen quality | Sokol, RZ; Kraft, P; Fowler, IM; Mamet, R; Kim, E; Berhane, KT | 2,006 | Idiopathic male infertility may be due to exposure to environmental toxicants that alter spermatogenesis or sperm function. We studied the relationship between air pollutant levels and semen quality over a 2-year period in Los Angeles, California, by analyzing repeated semen samples collected by sperm donors. Semen ana... | 1 |
695,390 | The impact of sorption on perceived indoor air quality | Sakr, W; Weschler, CJ; Fanger, PO | 2,006 | Sensory evaluations were used to investigate the impact of sorption processes on indoor air quality. Experiments were carried out in four similar, adjacent, unfurnished offices. Samples of carpet, linoleum, painted gypsum board, and Semia (a specially designed high-sorbing fabric) were tested individually and in combin... | 0 |
89,313 | Calculation and mapping of critical loads of sulphur and nitrogen for forest soils in Galicia (NW Spain) | Rodriguez-Lado, L; Macias, F | 2,006 | Calculations of critical loads of acidity within Europe have shown Galicia to be one of the regions in Spain with the highest risk of soil acidification by deposition of atmospheric pollutants. We used the simple mass balance method (SMB) to derive critical loads of sulphur and nitrogen for forest soils in Galicia usin... | 0 |
631,181 | Role of tropospheric ozone increases in 20th-century climate change | Shindell, D; Faluvegi, G; Lacis, A; Hansen, J; Ruedy, R; Aguilar, E | 2,006 | Human activities have increased tropospheric ozone, contributing to 20th-century warming. Using the spatial and temporal distribution of precursor emissions, we simulated tropospheric ozone from 1890 to 1990 using the NASA Goddard Institute for Space Studies (GISS) chemistry model. Archived three-dimensional ozone fiel... | 1 |
130,481 | Intercomparison of the DOAS and LOPAP techniques for the detection of nitrous acid (HONO) | Kleffmann, J; Lorzer, JC; Wiesen, P; Kern, C; Trick, S; Volkamer, R; Rodenas, M; Wirtz, K | 2,006 | Recent studies have demonstrated that nitrous acid (HONO) is a source of hydroxyl radicals (OH) in the boundary layer not only early in the morning but also throughout the day. Despite its importance, all known instruments to detect HONO in the atmosphere suffer either from the great experimental effort necessary or fr... | 1 |
191,332 | Effects of chronic ozone exposure on gene expression in Arabidopsis thaliana ecotypes and in Thellungielia halophila | Li, PH; Mane, SP; Sioson, AA; Robinet, CV; Heath, LS; Bohnert, HJ; Grene, R | 2,006 | Arabidopsis thaliana (At) ecotypes Columbia-0 (Col-0), Wassilewskija (WS), Cape Verde Islands (Cvi-0) and a relative, Thellungiella halophila (Th), were exposed to 20-25% over ambient ozone [O-3] in a free air concentration enrichment (FACE) experiment (http://www.soyFACE. uiuc.edu), mirroring increases expected in the... | 1 |
191,344 | Effects of elevated Co-2 and O-3 on a variant of the western corn rootworm (Coleoptera : Chrysomelidae) | Schroeder, JB; Gray, ME; Ratcliffe, ST; Estes, RE; Long, SP | 2,006 | Global atmospheric carbon dioxide concentration [CO2] increased 20% in the last century and is expected to increase another 48% by 2050. Surface concentrations of ozone [0,] also are increasing rapidly in agricultural areas of the northern hemisphere and are expected to increase another 20% by 2050. To better understan... | 0 |
93,011 | Ozone production from the 2004 North American boreal fires | Pfister, GG; Emmons, LK; Hess, PG; Honrath, R; Lamarque, JF; Val Martin, M; Owen, RC; Avery, MA; Browell, EV; Holloway, JS; Nedelec, P; Purvis, R; Ryerson, TB; Sachse, GW; Schlager, H | 2,006 | We examine the ozone production from boreal forest fires based on a case study of wildfires in Alaska and Canada in summer 2004. The model simulations were performed with the chemistry transport model, MOZART-4, and were evaluated by comparison with a comprehensive set of aircraft measurements. In the analysis we use m... | 0 |
782,586 | Increased expression of CD86 and reduced production of IL-12 and IL-10 by monocyte-derived dendritic cells from allergic asthmatics and their effects on Th1- and Th2-type cytokine balance | Chen, XQ; Yang, J; Hu, SP; Nie, HX; Mao, GY; Chen, HB | 2,006 | BACKGROUND: In allergic asthma, allergen-specific T cells have a Th2-biased phenotype, and it is thought that dendritic cells (DCs) contribute to the induction of allergic immune responses. Therefore, we hypothesized that DCs from allergic asthmatics and healthy donors differ with regard to their preference to induce T... | 1 |
596,371 | Effect of nutritional status and ozone exposure on some biomarkers of oxidative stress in rat brain regions | Calderon Guzman, D; Barragan Mejia, G; Hernandez Garcia, E; Juarez Olguin, H | 2,006 | The aim of this study was to analyze the effect of nutritional condition and simulated exposure to ozone on Glutathione (GSH), the activity of Na+/K+ ATPase and lipid peroxidation in rat brain. Male Wistar rats were fed with 7% and 23% protein diets. Two groups were formed for each nutritional condition: one group was ... | 1 |
88,746 | Air pollution and cardiovascular admisisons association in Spain: Results within the EMECAS project | Ballester, F; Rodriguez, P; Iniguez, C; Saez, M; Daponte, A; Galan, I; Taracido, M; Arribas, F; Bellido, J; Cirarda, FB; Canada, A; Guillen, JJ; Guillen-Grima, F; Lopez, E; Perez-Hoyos, S; Lertxundi, A; Toro, S | 2,006 | OBJECTIVE: To evaluate the short term effect of air pollution on cardiovascular admissions in 14 Spanish cities METHODS: The period under study was from 1995 to 1999. Daily emergency admissions for all cardiovascular diseases (CVD) and heart diseases (HD) were obtained from hospital records, and the corresponding daily... | 1 |
89,256 | Predicting residential ozone deficits from nearby traffic | Mcconnell, R; Berhane, K; Yao, L; Lurmann, FW; Avol, E; Peters, JM | 2,006 | Oxides of nitrogen in fresh traffic exhaust are known to scavenge ambient ozone. However, there has only been little study of local variation in ozone resulting from variation in vehicular traffic patterns within communities. Homes of 78 children were selected from a sample of participants in 3 communities in the south... | 1 |
90,191 | Associations between outdoor air pollution and emergency department visits for stroke in Edmonton, Canada | Villeneuve, PJ; Chen, L; Stieb, D; Rowe, BH | 2,006 | Inconsistent results have been obtained from studies that have examined the relationship between air pollution and hospital visits for stroke. We undertook a time-stratified case-crossover study to evaluate associations between outdoor air pollution and emergency department visits for stroke among the elderly according... | 1 |
191,643 | Responses of citrus plants to ozone: Leaf biochemistry, antioxidant mechanisms and lipid peroxidation | Iglesias, DJ; Calatayud, A; Barreno, E; Primo-Millo, E; Talon, M | 2,006 | The effects of ozone upon 3-year-old trees of Clementina mandarin (Citrus clementina Hort. ex Tan.) cv. Marisol exposed for 12 months to ambient (10 nl l(-1)) and high (30 and 65 nl l(-1)) concentrations in open top chambers (OTCs) were investigated. The data showed that in leaves, ozone reduced total chlorophylls, car... | 0 |
157,999 | Field responses of Prunus serotina and Asclepias syriaca to ozone around southern Lake Michigan | Bennett, JP; Jepsen, EA; Roth, JA | 2,006 | Higher ozone concentrations east of southern Lake Michigan compared to west of the lake were used to test hypotheses about injury and growth effects on two plant species. We measured approximately 1000 black cherry trees and over 3000 milkweed stems from 1999 to 2001 for this purpose. Black cherry branch elongation and... | 1 |
91,322 | DNA damage in outdoor workers occupationally exposed to environmental air pollutants | Tovalin, H; Valverde, M; Morandi, MT; Blanco, S; Whitehead, L; Rojas, E | 2,006 | BACKGROUND: Health concerns about the exposure to genotoxic and carcinogenic agents in the air are particularly significant for outdoor workers in less developed countries. AIMS: To investigate the association between personal exposure to a group of air pollutants and severity of DNA damage in outdoor workers from two ... | 1 |
195,307 | HXNBR coating for improving aging resistance of natural rubber products | Joseph, R | 2,006 | HXNBR (Hydrogenated Carboxylated Nitrile Rubber) has very good heat ageing resistance and oil resistance. A novel accelerator system is designed to bring about the vulcanization of HXNBR at room temperature. The room temperature cured samples showed good mechanical properties equivalent to those of high (150 degrees C)... | 0 |
91,043 | Variability in nocturnal nitrogen oxide processing and its role in regional air quality | Brown, SS; Ryerson, TB; Wollny, AG; Brock, CA; Peltier, R; Sullivan, AP; Weber, RJ; Dube, WP; Trainer, M; Meagher, JF; Fehsenfeld, FC; Ravishankara, AR | 2,006 | Nitrogen oxides in the lower troposphere catalyze the photochemical production of ozone (O3) pollution during the day but react to form nitric acid, oxidize hydrocarbons, and remove O3 at night. A key nocturnal reaction is the heterogeneous hydrolysis of dinitrogen pentoxide, N2O5. We report aircraft measurements of NO... | 0 |
191,341 | Effects of elevated CO2 and O3 on soil respiration under ponderosa pine | Tingey, DT; Johnson, MG; Lee, EH; Wise, C; Waschmann, R; Olszyk, DM; Watrud, LS; Donegan, KK | 2,006 | Soil respiration represents the integrated response of plant roots and soil organisms to environmental conditions and the availability of C in the soil. A multi-year study was conducted in outdoor sun-lit controlled-environment chambers containing a reconstructed ponderosa pine/soil-litter system. The study used a 2 x ... | 1 |
596,383 | Oxidative stress induction by short time exposure to ozone on THP-1 cells | Foucaud, L; Bennasroune, A; Klestadt, D; Laval-Gilly, P; Falla, J | 2,006 | Ozone is a major component of air pollution mainly formed by photochemical reactions of nitrogen oxides with volatile organic compounds and/or carbon monoxide. Numerous studies have shown the association between ozone exposure with pulmonary injuries. This pollutant is a strong oxidant exerting its biological action ei... | 0 |
196,494 | Human pulmonary responses with 30-minute time intervals of exercise and rest when exposed for 8 hours to 0.12 ppm ozone via square-wave and acute triangular profiles | Adams, WC | 2,006 | Hazucha et al. (1992) compared pulmonary function responses during 8-h square-wave exposures to FA and to 0.12 ppm O3, as well as to an acute triangular exposure to a mean O3 concentration of 0.12 ppm. With 30 min of moderate exercise each hour during 8 h of continuous exposure, significantly greater pulmonary function... | 1 |
695,487 | Ozone-initiated secondary emission rates of aldehydes from indoor surfaces in four homes | Wang, H; Morrison, GC | 2,006 | Field experiments were conducted in four homes during summer to quantify ozone-induced secondary emission rates (SERs) of aldehydes on indoor surfaces. Four surfaces in each house were examined: living room carpet, living room wall, kitchen floor, and kitchen counter. Upon exposure to ozone for 3 h, formaldehyde and C-... | 0 |
88,343 | Concurrent multiaxis differential optical absorption spectroscopy system for the measurement of tropospheric nitrogen dioxide | Leigh, RJ; Corlett, GK; Friess, U; Monks, PS | 2,006 | The development of a new concurrent multiaxis (CM-AX) sky viewing spectrometer to monitor rapidly changing urban concentrations of nitrogen dioxide is detailed. The CMAX differential optical absorption spectroscopy (DOAS) technique involves simultaneous spectral imaging of the zenith and off-axis measurements of spatia... | 0 |
191,457 | Impact of ozone on Mediterranean forests: A review | Paoletti, E | 2,006 | Ozone impact on Mediterranean forests remains largely under-investigated, despite strong photochemical activity and harmful effects on crops. As representative of O-3 impacts on Mediterranean vegetation, this paper reviews the current knowledge about O-3 and forests in Italy. The intermediate position between Africa an... | 0 |
494,850 | Employing dynamical and chemical processes for contaminant mixtures outdoors to the indoor environment: The implications for total human exposure analysis and prevention | Lioy, PJ | 2,006 | There are many physical and chemical processes that affect the accumulation of outdoor pollutants. In recent years some of the information and concepts previously ascribed to outdoor pollution has been found to be useful in examining indoor dynamic and chemical processes. Further, because of the con. ning nature of the... | 0 |
93,266 | Association between air pollution and general practitioner visits for respiratory diseases in Hong Kong | Wong, TW; Tam, W; Tak Sun Yu, I; Wun, TY; Wong, AH; Wong, CM | 2,006 | Background: Few studies have explored the relation between air pollution and general practitioner (GP) consultations in Asia. Clinic attendance data from a network of GPs were studied, and the relationship between daily GP consultations for upper respiratory tract infections (URTI) and non-URTI respiratory diseases and... | 0 |
134,392 | Removal of ozone on clean, dusty and sooty supply air filters | Hyttinen, M; Pasanen, P; Kalliokoski, P | 2,006 | The removal of ozone (O-3) on supply air filters was studied. Especially, the effects of dust load, diesel soot, relative humidity (RH), and exposure time on the removal of O-3 were investigated. Some loss of O-3 was observed in all the filters, except in an unused G3 pre-filter made of polyester. Dust load and quality... | 1 |
92,728 | Indoor microclimate, ozone and nitrogen oxides in two medieval churches in Cyprus | Loupa, G; Charpantidou, E; Kioutsioukis, I; Rapsomanikis, S | 2,006 | A number of indoor atmosphere parameters that may affect the preservation of artefacts in two churches in Cyprus, were studied. Temperature, relative humidity (RH), total ultra-violet and total solar radiation, that were continuously recorded during two campaigns (summer and winter), exhibited large diurnal and seasona... | 0 |
90,193 | Urban air pollution and emergency admissions for cerebrovascular diseases in Taipei, Taiwan | Chan, CC; Chuang, KJ; Chien, LC; Chen, WJ; Chang, WT | 2,006 | AIMS: This study was designed to evaluate the association between urban air pollutants and emergency admissions for cerebrovascular diseases. METHODS AND RESULTS: Daily emergency admissions for cerebrovascular diseases (ICD-9-CM, 430-437) to the National Taiwan University Hospital were regressed against daily concentra... | 1 |
141,307 | The relation between temperature, ozone, and mortality in nine French cities during the heat wave of 2003 | Filleul, L; Cassadou, S; Medina, S; Fabres, P; Lefranc, A; Eilstein, D; Le Tertre, A; Pascal, L; Chardon, B; Blanchard, M; Declercq, C; Jusot, JF; Prouvost, H; Ledrans, M | 2,006 | BACKGROUND: During August 2003, record high temperatures were observed across Europe, and France was the country most affected. During this period, elevated ozone concentrations were measured all over the country. Questions were raised concerning the contribution of O3 to the health impact of the summer 2003 heat wave.... | 0 |
112,994 | The role of inflammatory mediators in the synergistic toxicity of ozone and 1-nitronaphthalene in rat airways | Schmelzer, KR; Wheelock, AM; Dettmer, K; Morin, D; Hammock, BD | 2,006 | Ambient air is polluted with a mixture of pulmonary toxicants. Previous studies indicate that prior exposure to atmospheric oxidant pollutants such as ozone may significantly alter the response to other pollutants, such as 1-nitronaphthalene (1-NN). 1-NN, a component of the particulate exhaust from diesel engines, has ... | 1 |
196,946 | Effects of elevated carbon dioxide and ozone on aphid oviposition preference and birch bud exudate phenolics | Peltonen, PA; Julkunen-Tiitto, R; Vapaavuori, E; Holopainen, JK | 2,006 | The effect of atmospheric change on birch aphid (Euceraphis betulae Koch) oviposition preference was examined and plant characteristics that are possibly responsible for the observed effects were investigated. It was hypothesized that the increasing concentrations of CO2 and O-3 affect singly or in combination the ovip... | 1 |
196,558 | Global health benefits of mitigating ozone pollution with methane emission controls | West, JJ; Fiore, AM; Horowitz, LW; Mauzerall, DL | 2,006 | Methane (CH(4)) contributes to the growing global background concentration of tropospheric ozone (O(3)), an air pollutant associated with premature mortality. Methane and ozone are also important greenhouse gases. Reducing methane emissions therefore decreases surface ozone everywhere while slowing climate warming, but... | 0 |
191,372 | Elevated CO2 and O3 alter soil nitrogen transformations beneath trembling aspen, paper birch, and sugar maple | Holmes, WE; Zak, DR; Pregitzer, KS; King, JS | 2,006 | Nitrogen cycling in northern temperate forest ecosystems could change under increasing atmospheric CO2 and tropospheric O-3 as a result of quantitative and qualitative changes in plant litter production. At the Aspen Free Air CO2-O-3 Enrichment (FACE) experiment, we previously found that greater substrate inputs to soi... | 1 |
99,068 | Do gender, education, and income modify the effect of air pollution gases on cardiac disease? | Cakmak, S; Dales, RE; Judek, S | 2,006 | Objective: We sought to determine whether gender, education, and income influence the susceptibility to ambient air pollution.
Methods: We determined the association between daily cardiac hospitalizations and daily concentrations of gaseous air pollutants in 10 large Canadian cities using time-series analyses adjusted... | 1 |
156,795 | The uptake of O3 by myristic acid-oleic acid mixed particles: evidence for solid surface layers | Nash, DG; Tolocka, MP; Baer, T | 2,006 | The oleic acid ozonolysis in mixed oleic and myristic acid particles was studied in a flow tube reactor using single particle mass spectrometry. The change in reactivity was investigated as a function of the myristic acid concentration in these 2 micron particles. For pure oleic acid aerosol, the reactive ozone uptake ... | 0 |
88,871 | Band residual difference algorithm for retrieval of SO2 from the aura ozone monitoring instrument (OMI) | Krotkov, NA; Carn, SA; Krueger, AJ; Bhartia, PK; Yang, K | 2,006 | The Ozone Monitoring Instrument (OMI) on EOS/Aura offers unprecedented spatial and spectral resolution, coupled with global coverage, for space-based UV measurements of sulfur dioxide (SO2). This paper describes an OMI SO2 algorithm (the band residual difference) that uses calibrated residuals at SO2 absorption band ce... | 0 |
96,384 | Chemical characterisation of PM episodes in NE Spain | Viana, M; Querol, X; Alastuey, A | 2,006 | The chemical composition of ambient particulate matter (PM) varies widely as a function of its main emission sources and of the chemical reactions which take place in the atmosphere. The aim of this study is to obtain the chemical profile of PM10 and PM2.5 during peak PM episodes, thus identifying the main emission sou... | 0 |
651,835 | In vivo and ex vivo UV-induced analysis of pigmentation gene expressions | Corre, S; Mekideche, K; Adamski, H; Mosser, J; Watier, E; Galibert, MD | 2,006 | null | 0 |
694,268 | Cross influences of ozone and sulfate precursor emissions changes on air quality and climate | Unger, N | 2,006 | Tropospheric O(3) and sulfate both contribute to air pollution and climate forcing. There is a growing realization that air quality and climate change issues are strongly connected. To date, the importance of the coupling between O(3) and sulfate has not been fully appreciated, and thus regulations treat each pollutant... | 1 |
199,894 | Seasonal variations of DNA damage in human lymphocytes: Correlation with different environmental variables | Giovannelli, L; Pitozzi, V; Moretti, S; Boddi, V; Dolara, P | 2,006 | Several types of DNA damage, including DNA breaks and DNA base oxidation, display a seasonal trend. In the present work, a sample of 79 healthy subjects living in the city of Florence, Italy, was used to analyse this effect. Three possible causative agents were taken into consideration: solar radiation, air temperature... | 1 |
111,226 | A high-resolution NOx emission factor model for North American motor vehicles | Singh, RB; Sloan, JJ | 2,006 | Criteria air contaminant inventories in Canada show that approximately 60% of NOx is produced from the transportation sector alone. NO2, which is present at higher levels in the winter than in the summer, has been identified as the main pollutant responsible for non-traumatic deaths and hospitalization in Canadian citi... | 0 |
89,433 | Eddy covariance fluxes of peroxyacetyl nitrates (PANs) and NOy to a coniferous forest | Turnipseed, AA; Huey, LG; Nemitz, E; Stickel, R; Higgs, J; Tanner, DJ; Slusher, DL; Sparks, JP; Flocke, F; Guenther, A | 2,006 | [ 1] We employed a fast response thermal dissociation-chemical ionization mass spectrometer (TD-CIMS) system to measure eddy covariance fluxes of peroxyacetyl nitrate ( PAN), peroxypropionyl nitrate (PPN) and peroxymethacryloyl nitrate (MPAN). Fluxes were measured for eight consecutive days in July 2003 at a Loblolly p... | 0 |
88,045 | Integrated assessment of the spatial variability of ozone impacts from emissions of nitrogen oxides | Tong, DQ; Muller, NZ; Mauzerall, DL; Mendelsohn, RO | 2,006 | #This paper examines the ozone (O3) damages caused by nitrogen oxides (NOx) emissions in different locations around the Atlanta metropolitan area during a summer month. We calculate O3 impacts using a new integrated assessment model that links pollution emissions to their chemical transformation, transport, population ... | 0 |
458,929 | Do carbon-based defences reduce foliar damage? Habitat-related effects on tree seedling performance in a temperate rainforest of Chiloe Island, Chile | Chacon, P; Armesto, JJ | 2,006 | Carbon-based secondary compounds (CBSCs), such as phenols or tannins, have been considered as one of the most important and general chemical barriers of woody plants against a diverse array of herbivores. Herbivory has been described as a critical factor affecting the growth and survival of newly established tree seedl... | 0 |
90,352 | Critical evaluation of US on-road vehicle emission inventories | Parrish, DD | 2,006 | #US Environmental Protection Agency estimates of on-road vehicle emissions are compared with ambient measurements and a fuel-based emission inventory. Several significant weaknesses and strengths are identified. (1) The emission estimates have varied considerably over the past 15 years and are not clearly converging to... | 1 |
91,182 | Report on air quality in nonattainment areas for 2003-2005 covering ozone, particulate matter, carbon monoxide, sulfur dioxide, nitrogen dioxide, and lead | null | 2,006 | null | 0 |
192,082 | Aging and toxic response: issues relevant to risk assessment | null | 2,006 | This report is intended to orient EPA scientists, risk assessors, and the public-at-large to physiological and biochemical factors in the elderly that may influence their responses to exposures from environmental chemicals. Although it is not a comprehensive review of literature, the document identifies several data ga... | 1 |
694,552 | Environmental cardiology - Studying mechanistic links between pollution and heart disease | Bhatnagar, A | 2,006 | Environmental factors are considered key determinants of cardiovascular disease. Although lifestyle choices such as smoking, diet, and exercise are viewed as major environmental influences, the contribution of pollutants and environmental chemicals is less clear. Accumulating evidence suggests that exposure to pollutan... | 0 |
72,604 | Comparison of spatial patterns of pollutant distribution with CMAQ predictions | Phillips, SB; Finkelstein, PL | 2,006 | #To evaluate the Models-3/Community Multiscale Air Quality (CMAQ) modeling system in reproducing the spatial patterns of aerosol concentrations over the country on timescales of months and years, the spatial patterns of model output are compared with those derived from observational data. Simple spatial interpolation p... | 0 |
191,296 | Cytosolic dehydroascorbate reductase is important for ozone tolerance in Arabidopsis thaliana | Yoshida, S; Tamaoki, M; Shikano, T; Nakajima, N; Ogawa, D; Ioki, M; Aono, M; Kubo, A; Kamada, H; Inoue, Y; Saji, H | 2,006 | Dehydroascorbate reductase (DHAR) is a key component of the ascorbate recycling system. Three functional DHAR genes are encoded in the Arabidopsis genome. Ozone exposure increased the expression of the cytosolic DHAR (cytDHAR) gene alone. We characterized an Arabidopsis mutant with a deficient cytDHAR. The mutant compl... | 0 |
87,536 | Heat acclimatization and sunshine cause false indications of mortality due to ozone | Keatinge, WR; Donaldson, GC | 2,006 | We used graphic analysis and generalized additive modeling to assess whether mortality that is often attributed to ozone and sometimes to <10-mum particulate matter (PM(10)) and sulfur dioxide in hot weather results from confounding by neglected weather factors. When mean daily air temperatures exceeded 18 degrees C, m... | 0 |
199,327 | The biogenic volatile organic compounds emission inventory in France - Application to plant ecosystems in the Berre-Marseilles area (France) | Simon, V; Dumergues, L; Ponche, JL; Torres, L | 2,006 | An inventory describing the fluxes of volatile organic compounds (VOCs), isoprene and monoterpenes, and other VOCs (OVOCs) from the biosphere to the atmosphere, has been constructed within the framework of the ESCOMPTE project (fiEld experimentS to COnstrain Models of atmospheric Pollution and Transport of Emissions). ... | 0 |
90,064 | Regional carbon dynamics in the southeastern US coastal plain: Balancing land cover type, timber harvesting, fire, and environmental variation | Binford, MW; Gholz, HL; Starr, G; Martin, TA | 2,006 | null | 0 |
180,188 | Long-term changes in tropospheric ozone | Oltmans, SJ; Lefohn, AS; Harris, JM; Galbally, I; Scheel, HE; Bodeker, G; Brunke, E; Claude, H; Tarasick, D; Johnson, BJ; Simmonds, P; Shadwick, D; Anlauf, K; Hayden, K; Schmidlin, F; Fujimoto, T; Akagi, K; Meyer, C; Nichol, S; Davies, J; Redondas, A; Cuevas, E | 2,006 | Tropospheric ozone changes are investigated using a selected network of surface and ozonesonde sites to give a broad geographic picture of long-term variations. The picture of long-term tropospheric ozone changes is a varied one in terms of both the sign and magnitude of trends and in the possible causes for the change... | 1 |
196,535 | Permeability, inflammation and oxidant status in airspace epithelium exposed to ozone | Morrison, D; Rahman, I; Macnee, W | 2,006 | The aim of the study was to investigate possible mechanisms of epithelial injury in normal subjects exposed to environmentally relevant concentrations of ozone. Fifteen healthy non-smoking subjects (M:F 12:3) were studied. Five of the 15 subjects were exposed to filtered air, six were exposed to ozone 100 parts per bil... | 1 |
107,100 | Effects of highway networks on ambient ozone concentrations-A case study in southern Taiwan | Tsai, DM; Wu, YL | 2,006 | The fraction of days on which ozone concentrations exceeded the ambient air quality standard increased from 2.9% in 2000 to 4.6% in 2004 in southern Taiwan. Mobile sources attributed for 44.7% and 17.6% of the ozone precursors, NO, and NMHC, respectively, based on the emission inventory of the Taiwan EPA. However, a ne... | 0 |
191,301 | Detecting changes in insect herbivore communities along a pollution gradient | Jones, ME; Paine, TD | 2,006 | The forests surrounding the urban areas of the Los Angeles basin are impacted by ozone and nitrogen pollutants arising from urban areas. We examined changes in the herbivore communities of three prominent plant species (ponderosa pine, California black oak and bracken fern) at six sites along an air pollution gradient.... | 1 |
88,874 | Algorithm for NO2 vertical column retrieval from the ozone monitoring instrument | Bucsela, EJ; Celarier, EA; Wenig, MO; Gleason, JF; Veefkind, JP; Boersma, KF; Brinksma, EJ | 2,006 | We describe the operational algorithm for the retrieval of stratospheric, tropospheric, and total column densities of nitrogen dioxide (NO2) from earthshine radiances measured by the Ozone Monitoring Instrument (OMI), aboard the EOS-Aura satellite. The algorithm uses the DOAS method for the retrieval of slant column NO... | 0 |
91,754 | The methylmercury cycle in Little Rock Lake during experimental acidification and recovery | Watras, CJ; Morrison, KA; Regnell, O; Kratz, TK | 2,006 | The cycle of waterborne methylmercury (meHg) in Little Rock Lake is characterized by a period of accumulation during summertime (when the lake is warm and open to the atmosphere) and a period of decline during winter (when the lake is scaled by ice). We followed this cycle for 16 yr. during which time the lake was acid... | 0 |
89,816 | Modelling atmospheric pollution during the games of the XXVIII Olympiad: effects on elite competitors | Flouris, AD | 2,006 | The present study investigated the specific atmospheric conditions expected in Athens during the summer of 2004 in relation to the performance of elite athletes. DESIGN: Atmospheric pollution and weather data for the period April 16th to September 30th covering the entire greater Athens area and collected from 1984 to ... | 0 |
191,661 | Seasonal profiles of leaf ascorbic acid content and redox state in ozone-sensitive wildflowers | Burkey, KO; Neufeld, HS; Souza, L; Chappelka, AH; Davison, AW | 2,006 | Cutleaf coneflower (Rudbeckia laciniata L.), crown-beard (Verbesina occidentalis Walt.), and tall milkweed (Asclepias exaltata L.) are wildflower species native to Great Smoky Mountains National Park (U.S.A.). Natural populations of each species were analyzed for leaf ascorbic acid (AA) and dehydroascorbic acid (DHA) t... | 1 |
596,390 | Structural and functional localization of airway effects from episodic exposure of infant monkeys to allergen and/or ozone | Joad, JP; Kott, KS; Bric, JM; Peake, JL; Plopper, CG; Schelegle, ES; Gershwin, LJ; Pinkerton, KE | 2,006 | Both allergen and ozone exposure increase asthma symptoms and airway responsiveness in children. Little is known about how these inhalants may differentially modify airway responsiveness in large proximal as compared to small distal airways. We evaluated whether bronchi and respiratory bronchioles from infant monkeys e... | 1 |
191,680 | Sources of errors in assessing ozone visible symptoms on native vegetation | Bussotti, F; Schaub, M; Cozzi, A; Gerosa, G; Novak, K; Hug, C | 2,006 | This paper aims to identify the problems regarding the evaluation of ozone (and ozone-like) symptoms, by examining the results of the 4th UN/ECE ICP-Forests Intercalibration Course for the assessment of ozone-induced visible symptoms. Trees, shrubs and herbaceous species were evaluated in a tree nursery, at Lattecaldo ... | 0 |
133,620 | Prolonged ozone exposure in an allergic airway disease model: Adaptation of airway responsiveness and airway remodelling | Jang, AS; Choi, IS; Lee, JH; Park, CS | 2,006 | BACKGROUND: Short-term exposure to high concentrations of ozone has been shown to increase airway hyper-responsiveness (AHR). Because the changes in AHR and airway inflammation and structure after chronic ozone exposure need to be determined, the goal of this study was to investigate these effects in a murine model of ... | 0 |
89,309 | Lichens and tobacco plants as complementary biomonitors of air pollution in the Grenoble area (Isere, southeast France) | Gombert, S; Asta, J; Seaward, MRD | 2,006 | This biomonitoring study was aimed at providing an overall assessment of nitrogen oxides (NOX) and tropospheric ozone (O3) in the Grenoble area (Is?re, France). Two bioindicators, lichens and tobacco plants, were used to estimate, respectively, the spatial distribution of NOX and O3. The following methodological approa... | 1 |
88,971 | Relation between air pollution and allergic rhinitis in Taiwanese schoolchildren | Hwang, BF; Jaakkola, JJK; Lee, YL; Lin, YC; Guo, YLL | 2,006 | Background
Recent findings suggest that exposure to outdoor air pollutants may increase the risk of allergic rhinitis. The results of these studies are inconsistent, but warrant further attention. The objective of the study was to assess the effect of relation between exposure to urban air pollution and the prevalence ... | 1 |
596,410 | Elevation of susceptibility to ozone-induced acute tracheobronchial injury in transgenic mice deficient in Clara cell secretory protein | Plopper, CG; Mango, GW; Hatch, GE; Wong, VJ; Toskala, E; Reynolds, SD; Tarkington, BK; Stripp, BR | 2,006 | Increases in Clara cell abundance or cellular expression of Clara cell secretory protein (CCSP) may cause increased tolerance of the lung to acute oxidant injury by repeated exposure to ozone (O3). This study defines how disruption of the gene for CCSP synthesis affects the susceptibility of tracheobronchial epithelium... | 1 |
633,893 | TES on the aura mission: Scientific objectives, measurements, and analysis overview | Beer, R | 2,006 | The Tropospheric Emission Spectrometer (TES) is a high-resolution infrared imaging Fourier transform spectrometer specifically aimed at determining the chemical state of the Earth's lower atmosphere (the troposphere). In particular, TES produces vertical profiles 0-32 km of important pollutant and greenhouse gases such... | 1 |
596,404 | Alveolar epithelial cells secrete chemokines in response to IL-1beta and lipopolysaccharide but not to ozone | Manzer, R; Wang, J; Nishina, K; Mcconville, G; Mason, RJ | 2,006 | Ozone exposure produces acute inflammation and neutrophil influx in the distal lung. Alveolar epithelial cells cover a large surface area, secrete chemokines, and may initiate or modify the inflammatory response. The effect of ozone on chemokine production by these cells has not been defined. Isolated rat type II cells... | 0 |
89,789 | Association between air pollution and multiple respiratory hospitalizations among the elderly in Vancouver, Canada | Fung, KY; Khan, S; Krewski, D; Chen, Y | 2,006 | Recurrent events, such as repeated hospital admissions for the same health outcome, occur frequently in environmental health studies. In this study, we conducted an analysis of data on repeated respiratory hospitalizations among the elderly in Vancouver, Canada, for the period of June 1, 1995, to March 31, 1999, using ... | 0 |
88,872 | Science objectives of the ozone monitoring instrument | Levelt, PF; Hilsenrath, E; Leppelmeier, GW; Van Den Oord, GHJ; Bhartia, PK; Tamminen, J; De Haan, JF; Veefkind, JP | 2,006 | The Ozone Monitoring Instrument (OMI) flies on NASAs Earth Observing System AURA satellite, launched in July 2004. OMI is an ultraviolet/visible (UV/VIS) nadir solar backscatter spectrometer, which provides nearly global coverage in one day, with a spatial resolution of 13 km x 24 km. Trace gases measured include O-3, ... | 0 |
191,657 | Seasonal changes in needle water content and needle ABA concentration of Japanese red pine, Pinus densiflora, in declining forests on Mt. Gokurakuji, Hiroshima prefecture, Japan | Kume, A; Hanba, YT; Nakane, K; Sakurai, N; Sakugawa, H | 2,006 | To evaluate the effects of air pollution on the decline of Pinus densiflora forests, various research has been conducted around Mt. Gokurakuji (34 degrees 23'N, 132 degrees 19'E, 693 m a.s.l.) north of the Seto Inland Sea, west Japan. To investigate the mechanisms responsible for decreases in photosynthesis (Pn) and st... | 0 |
191,250 | Biogenic emissions of isoprenoids and NO in China and comparison to anthropogenic emissions | Tie, X; Li, G; Ying, Z; Guenther, A; Madronich, S | 2,006 | In this study, a regional dynamical model (WRF) is used to drive biogenic emission models to calculate high resolution (10 x 10 km) biogenic emissions of isoprene (C5H8), monoterpenes(C10H16), andnitricoxide (NO) in China. This high resolution biogenic inventory will be available for the community to study the effect o... | 0 |
510,731 | Iressa induces cytostasis and augments Fas-mediated apoptosis in acinic cell adenocarcinoma overexpressing HER2/Neu | Piechocki, MP; Yoo, GH; Dibbley, SK; Amjad, EH; Lonardo, F | 2,006 | Understanding the role of signal transduction in regulating pathways responsible for cell growth, survival and apoptosis is critical for cancer therapy. We developed and characterized a HER2/neu and Fas overexpressing cell line (BNT.888 ACA2) from a salivary gland adenocarcinoma that arose in a HER2/neu transgenic mous... | 0 |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.