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 |
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30,016 | Mixed conifer forests of the San Bernardino Mountains, California | Miller, PR | 1,992 | null | 0 |
180,089 | Dose-response relationships for SO2 fumigations in the lichens Evernia prunastri (L.) Ach. and Ramalina fraxinea (L.) Ach. | Sanz, MJ; Gries, C; Nash, TH, III | 1,992 | Sulphur dioxide fumigation of the lichens Evernia prunastri (L.) Ach and Ramalina fraxinea (L.) Ach, whose thallus water content was held at 100-120",, throughout each experiment, resulted in changes in net
photosynthesis, dark respiration and chlorophyll content in relation to both concentration and duration of exposu... | 0 |
42,919 | FAGE measurements of tropospheric HO with measurements and model of interferences | Hard, TM; Mehrabzadeh, AA; Chan, CY; O'Brien, RJ | 1,992 | National Science Foundation; National Aeronautics and Space Administration; U.S. Environmental Protection Agency. | 0 |
44,007 | Tansley review no 41: predicting plant responses to global environmental change | Woodward, FI | 1,992 | Predicting the future responses of plants and ecosystems to further changes in the CO2 concentration of the atmosphere and to the possibility of global warming are important current concerns. Predictions have been most frequently attempted using short-term, single-factor experiments in controlled environments. However,... | 0 |
28,351 | Activity patterns of Californians: use of and proximity to indoor pollutant sources | Jenkins, PL; Phillips, TJ; Mulberg, EJ; Hui, SP | 1,992 | The California Air Resources Board funded a statewide survey of activity patterns of Californians over 11 years of age in order to improve the accuracy of exposure assessments for air pollutants. Telephone interviews were conducted with 1762 respondents over the four seasons from fall 1987 through summer1988. In additi... | 0 |
42,948 | Simultaneous long path field measurements of HNO2, CH2O and aerosol | Notholt, J; Hjorth, J; Raes, F; Schrems, O | 1,992 | Field measurements have been performed to study the influence of heterogeneous processes on the trace gas concentration of HNO2 and CH2O in the atmosphere. The observations indicate that during foggy episodes HNO2 is formed to a high extent when NO, NO2 and aerosols are present simultaneously. Far more CH2O is found to... | 0 |
26,749 | Environmental valuation under sustainable development | Howarth, RB; Norgaard, RB | 1,992 | N/A. | 0 |
43,066 | Air quality responses to NOx reductions: analysis of ROMNET results | Milford, JB; Gao, D; Odman, MT; Russell, AG; Possiel, NC; Scheffe, RD; Pierce, TE; Schere, KL | 1,992 | null | 0 |
26,747 | Benefits of preserving old-growth forests and the spotted owl | Hagen, DA; Vincent, JW; Welle, PG | 1,992 | This paper presents results from a national contingent-valuation study of the economic benefits of preserving old-growth forests in the Pacific Northwest. The study elicits "market-like" valuation responses from U.S. households concerning the benefits of a conservation policy for the northern spotted owl. These data pr... | 0 |
42,724 | Acute health effects of PM10 pollution on symptomatic and asymptomatic children | Pope CA III; Dockery, DW | 1,992 | #This study assessed the association between daily changes in respiratory health and respirable particulate pollution (PM10) in Utah Valley during the winter of 1990-1991. During the study period, 24-h PM10 concentrations ranged from 7 to 251 "mu"g/m3. Participants included symptomatic and asymptomatic samples of fifth... | 0 |
43,798 | The effects of ozone fumigation on the performance of the black bean aphid, Aphis fabae Scop, feeding on broad beans, Vicia faba L | Brown, VC; McNeill, S; Ashmore, MR | 1,992 | null | 0 |
44,429 | Limitations of ambient air quality standards in evaluating indoor environments | Peterson, JE | 1,992 | Analysis of the kinds of data used for the derivation of ambient air quality standards (AAQSs) for carbon monoxide and ozone shows that these values are based on the toxicology of the materials and thus are suitable for evaluating potential health effects of indoor environments, especially on the very young, the aged, ... | 0 |
40,370 | Vertical ozone profiles in a pine forest | Fontan, JA; Minga, A; Lopez, A; Druilhet, A | 1,992 | Vertical profiles of ozone concentration have been measured in a pine forest located in the Landes region, in south-west France. In the daytime, ozone concentrations are nearly constant between ground level and an altitude of 35 m, the higher level of measurement. At night, important vertical variations of ozone concen... | 1 |
1,640,968 | Atmospheric pollution | Schlesinger, RB | 1,992 | Air pollution has been directly responsible for increases in mortality and morbidity in the general population during periods known as episodes, when pollutant levels were elevated well above those that occur on a regular basis. The major concern today regarding pollution and health is, however, more subtle--namely, wh... | 0 |
44,143 | Kinetics and mechanism of the atmospheric oxidation of ethyl tertiary butyl ether | Smith, DF; Kleindienst, TE; Hudgens, EE; Mciver, CD; Bufalini, JJ | 1,992 | Ethyl tertiary butyl ether (ETBE) is being proposed as an additive for use in reformulated gasolines. In this study, experiments were performed to examine the kinetics and mechanism of the atmospheric removal of ETBE. The kinetics of the reaction of ETBE with OH radicals were examined by using a relative rate technique... | 0 |
12,207 | The atmospheric boundary layer | Garratt, JR | 1,992 | The book comprises nine chapters, four appendices (data tables, information sources, physical constants) and an extensive reference list. It is inevitably a compromise between a fundamental treatise on the one hand and a specialist research monograph on the other. Considerable effort has been made to provide a balance... | 0 |
42,770 | Identification of heptanal and nonanal in bronchoalveolar lavage from rats exposed to low levels of ozone | Cueto, R; Squadrito, GL; Bermudez, E; Pryor, WA | 1,992 | Heptanal and nonanal are identified from in vitro studies as potential biomarkers of exposure to ozone, the former resulting from ozonation of palmitoleic acid and the latter from oleic acid. An analytical method is developed based on derivatization using O-pentafluorobenzylhydroxylamine HCl and gas chromatography. The... | 0 |
42,722 | Functional and morphologic changes caused by acute ozone exposure in the isolated and perfused rat lung | Pino, MV; McDonald, RJ; Berry, JD; Joad, JP; Tarkington, BK; Hyde, DM | 1,992 | null | 0 |
42,834 | The effect of platelet activating factor antagonist on ozone-induced airway inflammation and bronchial hyperresponsiveness in guinea pigs | Tan, WC; Bethel, RA | 1,992 | We investigated the role of platelet-activating factor (PAF) in ozone-induced airway responses by examining the effects of L659,989, a potent PAF antagonist, on bronchial hyperresponsiveness and airway inflammation. Twenty-four male guinea pigs were studied in four equal groups. Total lung resistance (RL) in intubated ... | 0 |
38,744 | Differences in pulmonary biochemical and inflammatory responses of rats and guinea pigs resulting from daytime or nighttime, single and repeated exposure to ozone | Van Bree, L; Marra, M; Rombout, PJA | 1,992 | Rats and guinea pigs were exposed to 0.8 mg ozone (O3)/m3 (approximately 0.4 ppm) for 12 hr during the daytime, 12 hr during the nighttime, or continuously to investigate circadian variation in O3-induced pulmonary toxicity during single and repeated O3 exposures. Biomarkers in bronchoalveolar lavage (BAL) fluid and lu... | 0 |
42,896 | Ozone precursor relationships in the ambient atmosphere | Chameides, WL; Fehsenfeld, F; Rodgers, MO; Cardelino, C; Martinez, J; Parrish, D; Lonneman, W; Lawson, DR; Rasmussen, RA; Zimmerman, P; Greenberg, J; Middleton, P; Wang, T | 1,992 | The concentrations of ozone, nitrogen oxides, and nonmethane hydrocarbons measured near the surface in a variety of urban, suburban, rural, and remote locations are analyzed and compared in order to elucidate the relationships between ozone, its photochemical precursors, and the sources of these precursors. While a lar... | 0 |
42,821 | Distribution of injury and microdosimetry of ozone in the ventilatory unit of the rat | Pinkerton, KE; Mercer, RR; Plopper, CG; Crapo, JD | 1,992 | The distribution of ozone-induced injury across ventilatory units of the lungs was determined and compared with the predicted distribution of ozone dose across the same units to evaluate dose-response relationships. Sprague-Dawley rats were exposed to either 0.98 ppm ozone 8 h/day for 90 days or to filtered air only. E... | 0 |
48,292 | A regional estimate of the convective transport of CO from biomass burning | Pickering, KE; Scala, JR; Thompson, AM; Tao, WK; Simpson, J | 1,992 | #We present a regional-scale estimate of the fraction of biomass burning emissions that are transported to the free troposphere by deep convection. The focus is on CO and the study region is a part of Brazil that underwent intensive deforestation in the 1980's. The method of calculation is stepwise, scaling up from a... | 0 |
42,758 | Role of occupational exposure to airway irritants in the development of asthma | Antti-Poika, M; Nordman, H; Koskenvuo, M; Kaprio, J; Jalava, M | 1,992 | In order to study the role of occupational exposure in the etiology of asthma, 78 asthmatics and 56 nonasthmatics from the Finnish twin cohort were investigated by means of a postal questionnaire. Among those studied were 31 identical twin pairs discordant with regard to asthma (i.e., only one member of the pair had as... | 0 |
43,218 | NCLAN results and their application to the standard-setting process: protecting vegetation from surface ozone exposures | Lefohn, AS; Foley, JK | 1,992 | The current form of the standard is not appropriate for protecting vegetation from O3 exposures. As an alternative to the current form of the standard, it has been suggested in the literature that a maximum cumulative 3-month SUM06 O3 exposure index be used as the form of a secondary standard to protect agricultural cr... | 0 |
42,838 | Review of the genotoxicity of ozone | Victorin, K | 1,992 | Ozone is a powerful oxidant, reactive to biomolecules. In aqueous solution it decomposes to give hydrogen peroxide, superoxide and hydroxy radicals which can take part in secondary reactions. Ozone is a disinfectant that inactivates both viruses and bacteria. Although other reactions are primarily responsible for the i... | 0 |
43,129 | Effects of long-term ozone exposure and drought on the photosynthetic capacity of ponderosa pine (Pinus ponderosa Laws) | Beyers, JL; Riechers, GH; Temple, PJ | 1,992 | Seedlings of ponderosa pine (Pinus ponderosa Laws.) were grown for three years under three atmospheric ozone concentrations - clean air (CF), ambient ozone (NF), and 1.5 times ambient ozone (NF150) - at a moderately-polluted site in the Sierra Nevada, under either well-watered or drought-stressed conditions. When the t... | 0 |
42,742 | Mechanisms contributing to ozone-induced bronchial hyperreactivity in guinea-pigs | Yeadon, M; Wilkinson, D; Darley-Usmar, V; O'Leary, VJ; Payne, AN | 1,992 | The effect of ozone (3 ppm, 15-120 min) on bronchial reactivity in the guinea-pig was studied. Ozone induced marked (6-250-fold) bronchial hyperreactivity (BHR) to a range of inhaled, but not intravenous bronchoconstrictors. The degree of BHR was related to the duration of prior ozone exposure. The glutathione redox st... | 0 |
42,713 | Aerosolized neutral endopeptidase reverses ozone-induced airway hyperreactivity to substance P | Murlas, CG; Lang, Z; Williams, GJ; Chodimella, V | 1,992 | We investigated the effects of ozone exposure (3.0 ppm, 2 h) on airway neutral endopeptidase (NEP) activity and bronchial reactivity to substance P in guinea pigs. Reactivity after ozone or air exposure was determined by measuring specific airway resistance in intact unanesthetized spontaneously breathing animals in re... | 0 |
42,852 | Ozone cracking and protection of elastomers at high and low temperatures | Lake, GJ; Mente, PG | 1,992 | Ozone attack on elastomers varying in their glass transition temperatures (OG) by some 50 degrees C was studied over a range of temperatures from about -20 degrees C to +70 degrees C. If the ambient temperature is low, the rate of crack growth due to ozone may be reduced by the high internal viscosity of the material. ... | 0 |
44,164 | Tropospheric chemistry over the lower Great Plains of the United States 2 Trace gas profiles and distributions | Luke, WT; Dickerson, RR; Ryan, WF; Pickering, KE; Nunnermacker, LJ | 1,992 | SUMMARY Convective clouds and thunderstorms redistribute air pollutants vertically, and by altering the chemistry and radiative balance of the upper troposphere, these local actions can have global consequences. To study these effects, measurements of trace gases ozone, O3, carbon monoxide, CO, and odd nitrogen wer... | 0 |
28,192 | Toxic volatile organic compounds in urban air in Ilinois | Sweet, CW; Vermette, SJ | 1,992 | The airborne concentrations and sources of 13 toxic volatile organic chemicals (VOCs) were evaluated in three urban areas in Illinois: southeast Chicago, East St. Louis and Granite City. VOC concentrations and meteorology were monitored between May 1986 and April 1990. Using emissions inventories and source signatures ... | 0 |
12,262 | Activity patterns in elementary and high school students exposed to oxidant pollution | Spier, CE; Little, DE; Trim, SC; Johnson, TR; Linn, WS; Hackney, JD | 1,992 | We investigated activity patterns of 17 elementary school students aged 10-12, and 19 high school students aged 13-17, in suburban Los Angeles during the oxidant pollution season. Individuals' relationships between ventilation rate (VR) and heart rate (HR) were "calibrated" in supervised outdoor walking/jogging. Log VR... | 0 |
44,171 | Free tropospheric ozone production following entrainment of urban plumes into deep convection | Pickering, KE; Thompson, AM; Scala, JR; Tao, WK; Dickerson, RR; Simpson, J | 1,992 | It is shown that rapid vertical transport of air from urban plumes through deep convective clouds can cause substantial enhancement of the rate of O3 production in the free troposphere. Simulation of convective redistribution and subsequent photochemistry of an urban plume from Oklahoma City during the 1985 PRESTORM ca... | 0 |
43,183 | Antioxidant vitamins and prevention of lung disease | Menzel, DB | 1,992 | Although the evidence for oxidative stress for air pollution in the human lung is fragmentary, the hypothesis that oxidative stress is an important, if not the sole, mechanism of toxicity of oxidizing air pollutants and tobacco smoke is compelling and growing. First, biochemical mechanisms have been worked out for oxid... | 0 |
40,695 | Combined effects of ozone and cigarette smoke on airway responsiveness and vascular permeability in guinea pigs | Nishikawa, M; Ikeda, H; Nishiyama, H; Yamakawa, H; Suzuki, S; Okubo, T | 1,992 | The effects of combined exposure to ozone and cigarette smoke on airway responsiveness and tracheal vascular permeability, compared with those of single exposure were examined in guinea pigs. Airway responsiveness was assessed by measuring the specific airway resistance (sRaw) as a function of increasing concentration ... | 0 |
38,967 | Enhanced inflammatory response to acute ozone exposure in rats during pregnancy and lactation | Gunnison, AF; Weideman, PA; Sobo, M | 1,992 | Experimental evidence from several studies suggests that pregnant animals and women are more susceptible to oxidants than nonpregnant controls. In the study reported here, we sought to determine whether pregnant rats are more sensitive than age-matched virgin females to the inflammatory effects of ozone, a gaseous oxid... | 0 |
43,959 | [Unpublished data] | Busness, K | 1,992 | null | 0 |
43,608 | Assessment of ozone effects on beech (Fagus sylvatica) by injection of a protectant chemical | Ainsworth, N; Ashmore, MR | 1,992 | null | 0 |
44,077 | The role of non-precipitating clouds in producing ambient sulfate during summer: results from simulations with the Acid Deposition and Oxidant Model (ADOM) | Karamchandani, P; Venkatram, A | 1,992 | A comprehensive acid deposition model was used to investigate the importance of nonprecipitating stratus clouds for the production of ambient sulfate. A comparison of model estimates of ambient sulfate and SO2 concentrations with corresponding observations for an episode in the summer of 1988 showed that the model unde... | 0 |
44,024 | The use of activity diary data to estimate the probability of exposure to air pollution | Johnson, TR; Wijnberg, L; Capel, JE; Vostal, JJ | 1,992 | null | 0 |
43,355 | Evolutionary interpretations of differences in pollen tube growth rates | Walsh, NE; Charlesworth, D | 1,992 | The striking opportunities for competition in the pollination stage of the life cycle of flowering plants have been remarked on for many years, yet it is still not clearly known how much genetic variation for the rates of growth of pollen tubes exists in natural populations. Here we review the evidence for such variati... | 0 |
43,957 | Use of personal measurements for ozone exposure assessment - a pilot study | Liu L-JS; Koutrakis, P; Suh, HH; Mulik, JD; Burton, RM | 1,992 | null | 0 |
38,871 | Measurement of sub-ppv concentrations of aldehydes in a forest atmosphere using a new HPLC technique | Nondek, L; Rodler, DR; Birks, JW | 1,992 | Aldehydes present in "clean" forest air (Niwot Ridge, CO, 3050-m altitude) were trapped on glass microcartridges containing porous glass particles impregnated with dansylhydrazine (DNSH) and analyzed on-line by HPLC with fluorescence detection. The detection limits of formaldehyde and acetaldehyde are 0.1 ppbv for 1-L ... | 0 |
43,467 | Ethylene in plant biology | Abeles, FB; Morgan, PW; Saltveit ME, Jr | 1,992 | null | 0 |
55,144 | Ultraviolet radiation in the Arctic: the impact of potential ozone depletions and cloud effects | Tsay, SC; Stamnes, K | 1,992 | An atmospheric radiation model is used to study the combined effects of ozone depletions/redistributions and particulate clouds on atmospheric heating/photolysis rates and ultraviolet radiation reaching the biosphere. Four types of particulate clouds prevalent in the summertime Arctic are considered: stratospheric aero... | 0 |
42,803 | Expiratory flows decreased in Los Angeles children from 1984 to 1987: is this evidence of effects of air pollution? | Kilburn, KH; Warshaw, RH; Thornton, JC | 1,992 | To estimate the effects of air pollution we measured expiratory flows and vital capacities in 556 Mexican-American Los Angeles children in 1984 and 251 in 1987. They included 106 who were measured in 1984 and 1987 and 145 measured only in 1987. Pulmonary function values were standardized for growth be expressing them a... | 0 |
43,776 | Air pollution effects on ecosystem processes | Smith, WH | 1,992 | null | 0 |
43,966 | Performance assessment of the portable and lightweight LOZ-3 chemiluminescence type ozone monitor | Topham, LA; Mackay, GI; Schiff, HI | 1,992 | null | 0 |
38,714 | Sensitivity of ozone to model grid resolution | Jang J-CC | 1,992 | null | 0 |
42,794 | Longitudinal distribution of ozone absorption in the lung: Quiet respiration in healthy subjects | Hu, SC; Ben-Jebria, A; Ultman, JS | 1,992 | The objective of this research was to develop a bolus-response method for the noninvasive determination of O3 distribution in the human lung. A previously developed O3 analyzer and bolus generator were incorporated in a computer-controlled inhalation system, and measurements of O3 absorption from inhaled 10-ml boluses ... | 1 |
37,955 | Mutagenicity of nitric oxide and its inhibition by antioxidants | Arroyo, PL; Hatch-Pigott, V; Mower, HF; Cooney, RV | 1,992 | Nitric oxide (NO) is produced both by macrophages in vivo as a physiological response to infection and by a variety of cell types as an intercellular messenger. In addition, NO and nitrogen dioxide (NO2) are significant components of many combustion processes. The ubiquitous exposure of humans to nitrogen oxides (NOx),... | 0 |
43,251 | Emission rates of organics from vegetation in California's Central Valley | Winer, AM; Arey, J; Atkinson, R; Aschmann, SM; Long, WD; Morrison, CL; Olszyk, DM | 1,992 | California Air Resources Board. #Rates of emission of speciated hydrocarbons have been determined for more than 30 of the most dominant (based on acreage) agricultural and natural plant types found in California's Central Valley. These measurements employed flow-through Teflon chambers, sample collection on solid adsor... | 0 |
760,558 | Red Spruce Response to Ozone and Cloudwater after Three Years Exposure | Thornton, FC; Pier, PA; Mcduffie, C | 1,992 | This study reports on the results of a 3-yr study conducted at a high elevation site in the southern Appalachians to determine if cloudwater and ozone (O3) adversely affect the growth of red spruce seedlings (Picea rubens Sarg.). Field chambers were established at Whitetop Mountain, VA (elevation 1689 m), in 1988. Thre... | 0 |
42,393 | Application of the EPR spin-trapping technique to the detection of radicals produced in vivo during inhalation exposure of rats to ozone | Kennedy, CH; Hatch, GE; Slade, R; Mason, RP | 1,992 | Ozone is known to induce lipid peroxidation of lung tissue, although no direct evidence of free radical formation has been reported. We have used the electron paramagnetic resonance (EPR) spin-trapping technique to search for free radicals produced in vivo by ozone exposure. The spin trap alpha-(4-pyridyl-1-oxide)-N-te... | 0 |
85,215 | Nitrogen dioxide and ozone pollution episodes--the role of reactive organic compounds and sunlight | Johnson, GM | 1,992 | null | 0 |
43,492 | Ectomycorrhizal colonization of loblolly pine seedlings during three growing seasons in response to ozone, acidic precipitation, and soil Mg status | Edwards, GS; Kelly, JM | 1,992 | null | 0 |
12,266 | Documentation of activity patterns in 'high-risk' groups exposed to ozone in the Los Angeles area | Linn, WS; Shamoo, DA; Hackney, JD | 1,992 | For ozone and other common pollutants, effective doses and health risks depend on exposed persons' ventilation rates (VR). Time/activity diaries yield useful but crude VR estimates. Seeking better VR information, we trained volunteers to record their heart rates (HR) with Heart Watch athletic training instruments whil... | 0 |
44,154 | Mixed conifer forests of the Sierra Nevada | Peterson, DL; Arbaugh, MJ | 1,992 | null | 0 |
644,681 | Inhibition of cholinergic neurotransmission in human airways by opioids | Belvisi, MG; Stretton, CD; Verleden, GM; Ledingham, SJ; Yacoub, MH; Barnes, PJ | 1,992 | Opioids reduce the cholinergic responses to electrical field stimulation (EFS) in guinea pig and canine airways by a prejunctional effect. We determined whether a similar effect operates in human airways in vitro. [D-Ala2-NMePhe4-Gly-ol5]enkephalin (DAMGO) (10(-8)-10(-6) M), a selective mu-opioid receptor agonist, inhi... | 1 |
43,337 | Office of Research and Development ambient air monitoring reference and equivalent methods; equivalent method and reference method designations | null | 1,992 | null | 0 |
42,717 | Exposure of surfactant protein A to ozone in vitro and in vivo impairs its interactions with alveolar cells | Oosting, RS; Van Iwaarden, JF; Van Bree, L; Verhoef, J; Van Golde, LMG; Haagsman, HP | 1,992 | Exposure of surfactant protein A to ozone in vitro and in vivo impairs its interactions with alveolar cells. Am. J. Physiof 262(Lung GeE Mol. Physiot. 6): L63-L68, 1992-This study focused on the question of whether exposure of surfactant protein A (SP-A) to ozone affected properties of this protein that maybe involved ... | 0 |
44,059 | Noncryogenic concentration of ambient hydrocarbons for subsequent nonmethane and volatile organic compound analysis | Levaggi, DA; Oyung, W; Zerrudo, RV | 1,992 | null | 0 |
44,197 | An investigation of the increase in preschool-age asthma in Manitoba, Canada | Johansen, H; Dutta, M; Mao, Y; Chagani, K; Sladecek, I | 1,992 | Asthma has long been a major cause of illness and disability among young Canadians. From 1970-71 to 1987-88, hospital admissions for asthma increased significantly among Canadian children under the age of fourteen. Many hypotheses may explain this increase in asthma prevalence. There could be a true increase in the num... | 0 |
44,093 | Moisture management techniques applicable to whole air samples analyzed by method TO-14 | Ogle, LD; Brymer, DA; Jones, CJ; Nahas, PA | 1,992 | null | 0 |
43,192 | Air pollution and school absenteeism among children in Mexico City | Romieu, I; Lugo, MC; Velasco, SR; Sanchez, S; Meneses, F; Hernandez, M | 1,992 | To determine the acute effects of ozone exposure, the authors conducted a short follow-up study of respiratory illness in a population of 111 preschool children frequently exposed to ozone levels that regularly exceed 0.120 parts per million (ppm). The children attended a private kindergarten in the southwestern part o... | 0 |
26,444 | Biodiversity and management of natural resources: the issues | Cairnes, MS; Lackey, RT | 1,992 | The earth's genetic, species, community, and landscape-level diversity is declining at an unprecedented rate because of habitat alteration. The decline of biodiversity in the aquatic environment is now recognized as a serious concern by biologists. Development and use of natural resources commonly have been practiced i... | 0 |
42,956 | Atmospheric photooxidation of isoprene part I: the hydroxyl radical and ground state atomic oxygen reactions | Paulson, SE; Flagan, RC; Seinfeld, JH | 1,992 | null | 0 |
40,553 | Associations between ozone and daily mortality in Los Angeles and New York City | Kinney, PL; Ozkaynak, H | 1,992 | null | 0 |
43,463 | The oxidizing capacity of the Earth's atmosphere: Probable past and future changes | Thompson, AM | 1,992 | The principal oxidants in the lower atmosphere are ozone (O3) and two by-products of O3 photodissociation, the hydroxyl radical (OH) and hydrogen peroxide (H2O2). A number of critical atmospheric chemical problems depend on the earth's "oxidizing capacity," which is essentially the global burden of these oxidants. Ther... | 1 |
43,514 | Seasonal growth, delta13C in leaves and stem, and phloem structure of birch (Betula pendula) under low ozone concentrations | Matyssek, R; Gunthardt-Goerg, MS; Saurer, M; Keller, T | 1,992 | null | 0 |
43,367 | National dry deposition network fourth annual progress report, 1990 | Edgerton, ES; Lavery, TF | 1,992 | null | 0 |
42,944 | An intercomparison of tropospheric OH measurements at Fritz Peak Observatory, Colorado | Mount, GH; Eisele, FL | 1,992 | null | 0 |
43,131 | Long-term effects of ozone and simulated acid rain on the foliage dynamics of slash pine (Pinus elliottii var elliottii Engelm) | Byres, DP; Dean, TJ; Johnson, JD | 1,992 | Seedlings from four half-sib families of Pinus elliottii var. elliottii Engelm. were planted in open-top chambers, and exposed to ozone and simulated acidic precipitation. Treatments were applied for 11 months per year for 28 months. The ozone concentrations were: charcoal filtered air (CF), nonfiltered ambient air (1x... | 0 |
42,728 | Respiratory alterations due to urban air pollution: an experimental study in rats | Saldiva, PHN; King, M; Delmonte, VLC; Macchione, M; Parada, MAC; Daliberto, ML; Sakae, RS; Criado, PMP; Silveira, PLP; Zin, WA; Bohm, GM | 1,992 | #In order to assess the adverse effects of urban levels of air pollution, rats were used as biological indicators in a chronic exposure experiment. Animals were housed for 6 months in the center of Sao Paulo (the largest South American city) and were compared to controls kept for the same period in a clean area. Pollut... | 0 |
43,419 | Synthesis of peroxyacetyl nitrate in air by acetone photolysis | Warneck, P; Zerbach, T | 1,992 | The photodecomposition of acetone in air with NO2 admixed has been used to generate peroxyacetyl nitrate (PAN) either by batch synthesis in an isolated flask or in a continuous-flow reactor. With NO2 mixing ratios near 10 ppm, the method converts in the first case 88% of NO2 to PAN and approximately 6% to methyl nitrat... | 0 |
43,086 | Annual report: SARMAP meteorological model development and testing for the period 15 August - 31 December 1991 [draft] | Seaman, NL | 1,992 | null | 0 |
52,761 | Involvement of the oxidative burst in phytoalexin accumulation and the hypersensitive reaction | Devlin, WS; Gustine, DL | 1,992 | ABSTRACT The role of the oxidative burst, transient production of activated oxygen species such as H2O2 and superoxide (O2-) in elicitation of phytoalexins and the hypersensitive reaction (HR) was investigated in white clover (Trifolium repens L.) and tobacco (Nicotiana tabacum L.). H2O2 and O2- production was meas... | 0 |
43,033 | Effects of methanol/gasoline blends used in flexible/variable fuel vehicles on urban air quality in year 2005/2010 - auto/oil air quality improvement research program | Dunker, AM; Schleyer, CH; Morris, RE; Pollack, AK | 1,992 | null | 0 |
43,896 | Action of pollutants individually and in combination | Wolfenden, J; Wookey, PA; Lucas, PW; Mansfield, TA | 1,992 | null | 0 |
42,996 | A multi-year study of air pollution and respiratory hospital admissions in three New York State metropolitan areas: results for 1988 and 1989 summers | Thurston, GD; Ito, K; Kinney, PL; Lippmann, M | 1,992 | National Institute of Environmental Health Sciences. As part of a multi-year study of air pollution and respiratory hospital admissions in the Buffalo. Albany, and New York City, New York, metropolitan areas, filter samples were collected daily at suburban air monitoring sites and cinalyzed for their content of particu... | 0 |
77,376 | Ozone in the United Kingdom | null | 1,992 | Leaflet describing the UK PORG database. | 0 |
43,611 | Biosphere/atmosphere interactions: integrated research in a European coniferous forest ecosystem | Enders, G; Dlugi, R; Steinbrecher, R; Clement, B; Daiber, R; Eijk, JV; Gab, S; Haziza, M; Helas, G; Herrmann, U; Kessel, M; Kesselmeier, J; Kotzias, D; Kourtidis, K; Kurth, HH; Mcmillen, RT; Roider, G; Schurmann, W; Teichmann, U; Torres, L | 1,992 | For the determination of regionally averaged fluxes and budgets of atmospheric trace constituents, the ultimate goal of the European Environment Research Program EUROTRAC, several ecosystems must be investigated, each representative of larger areas. One of the most wide-spread vegetation types is the coniferous forest,... | 0 |
38,720 | Assessment of toxicologic interactions resulting from acute inhalation exposure to sulfuric acid and ozone mixtures | Schlesinger, RB; Zelikoff, JT; Chen, LC; Kinney, PL | 1,992 | Studies examining effects of air pollutants often use single compounds, while "real world" exposures are to more than one chemical. Thus, it is necessary to assess responses following inhalation of chemical mixtures. Rabbits were exposed for 3 hr to sulfuric acid aerosol at 0, 50, 75, or 125 Ag/m(3) in conjunction with... | 0 |
43,133 | Growth response of young slash pine trees to simulated acid rain and ozone stress | Dean, TJ; Johnson, JD | 1,992 | null | 0 |
42,959 | Global average concentration and trend for hydroxyl radicals deduced from ALE/GAGE trichloroethane (methyl chloroform) data for 1978-1990 | Prinn, R; Cunnold, D; Simmonds, P; Alyea, F; Boldi, R; Crawford, A; Fraser, P; Gutzler, D; Hartley, D; Rosen, R; Rasmussen, R | 1,992 | National Aeronatics and Space Adminstration; Chemical Manufacturers Association; Department of Environment, United Kingdom; National Oceanic and Atmospheric Administration; CSIRO, Aspendale, Victoria, Australia; Bureau of Meteorology, Australia; National Science Foundation. | 0 |
43,777 | Methods of assessing responses of trees, stands and ecosystems to air pollution | Stolte, KW; Duriscoe, DM; Cook, ER; Cline, SP | 1,992 | null | 0 |
42,970 | Products and mechanisms of the reactions of the nitrate radical (no3) with isoprene, 1,3-butadiene and 2,3-dimethyl-1,3-butadiene in air | Skov, H; Hjorth, J; Lohse, C; Jensen, NR; Restelli, G | 1,992 | Products and mechanisms of the reaction of NO3 with isoprene have been studied under simulated atmospheric conditions with in situ FTIR spectroscopy as analytical technique. The study addressed also the reactions of NO3 with 1,3-butadiene and 2,3-dimethyl-1,3-butadiene as well as with the deuterated species 1,1,4,4-d4-... | 0 |
44,011 | Characterization of ozone at high elevation in the eastern United States: trends, seasonal variations, and exposure | Aneja, VP; Li, Z | 1,992 | null | 0 |
26,497 | Ozone-induced changes of messenger RNA levels of beta-1,3-glucanase, chitinase and pathogenesis-related protein 1B in tobacco plants | Ernst, D; Schraudner, M; Langebartels, C; Sandermann, H | 1,992 | Treatment of the ozone-sensitive tobacco cultivar Bel W3 with an ozone pulse (0.15 Al/l, 5 h) markedly increased the mRNA level of basic ?-1,3-glucanase and to a lower degree that of basic chitinase. The increase of ?-1,3-glucanase mRNA level occurred within 1 h and showed a transient maximum. Seventeen hours after oz... | 0 |
43,677 | Sustainability: an interdisciplinary guide | Pezzey, J | 1,992 | null | 0 |
42,104 | Environmental and health criteria for oxides of nitrogen [draft] | null | 1,992 | null | 0 |
43,377 | Response of two white clover clones to peanut stunt virus and ozone | Heagle, AS; McLaughlin, MR; Miller, JE; Joyner, RL | 1,992 | null | 0 |
91,051 | Nitric oxide can modify amino acid residues in proteins | Moriguchi, M; Manning, LR; Manning, JM | 1,992 | #Nitric oxide derived from sodium nitroprusside binds to the heme moiety of hemoglobin and also modifies some functional groups in the protein. As hemoglobin concentration is increased, globin modification is decreased presumably due to formation of the NO complex with heme. The SH groups of hemoglobin are probably not... | 0 |
45,277 | Modelling the dry deposition velocity of aerosol particles to a spruce forest | Peters, K; Eiden, R | 1,992 | A mathematical model is presented to calculate the size-specific deposition velocity of aerosol particles to coniferous forests, taking into account the plant morphology and micrometeorological parameters. In contrast to former studies on this topic the diffusion of the particles through laminar sublayers surrounding t... | 0 |
43,037 | Comparison of emission inventory and ambient concentration ratios of CO, NMOG, and NOx in California's south coast air basin | Fujita, EM; Croes, BE; Bennett, CL; Lawson, DR; Lurmann, FW; Main, HH | 1,992 | BIOSIS COPYRIGHT: BIOL ABS. In the present study, we performed a "top-down" validation of the reactive organic gas and carbon monoxide emission inventories for California's South Coast Air Basin (USA) by comparing speciation profiles for nonmethane organic gases (NMOG) and ratios of COx and NMOG/NOx derived from earl... | 0 |
12,501 | Increased ultraviolet radiation in New Zealand (45 degrees S) relative to Germany (48 degrees N) | Seckmeyer, G; Mckenzie, RL | 1,992 | Recent analyses of global ozone measurements have confirmed that ozone reductions are not confined to the Antarctic, but now extended to mid-latitudes in both hemispheres. Ozone reductions lead to increases in biologically damaging ultraviolet radiation, and such increases have been observed in Antarctica and Australia... | 0 |
43,594 | Yield stimulation of a commonly grown cultivar of Phaseolus vulgaris L at near-ambient ozone concentrations | Sanders, GE; Robinson, AD; Geissler, PA; Colls, JJ | 1,992 | Seeds of Phaseolus vulgaris L. cv. Nerina were hand-sown inside open-top chambers (OTCs) in which the plants were exposed to charcoal-filtered air (CF treatment), ambient air (NF), or ambient air with added 6, 12, 18, 25 or 30 nl l -1 of ozone (NF6, NF12, NF18, NF25 and NF30 treatments, respectively). Exposure commence... | 0 |
78,849 | Allometric relationships of cell numbers and size in the mammalian lung | Stone, KC; Mercer, RR; Gehr, P; Stockstill, B; Crapo, JD | 1,992 | Allometric studies have shown that lung volume, alveolar surface area, and diffusing capacity increase proportionally with body weight across a broad range of mammalian species. Changes in the number of cells and in average cell size and surface areas with increasing body weight have not been defined. We speculated tha... | 0 |
30,109 | Long-term exposure of Norway spruce, Picea abies (L) Karst, to ozone in open-top chambers 3 Effects on the light response of net photosynthesis in shoots of different ages | Wallin, G; Skarby, L; Sellden, G | 1,992 | Rates of photosynthesis at different photosynthetic photon flux densities (PPFD; 0-1530 Amol m-2 s-1) were measured on three shoot age classes of one clone of Norway spruce, Picea abies (L.) Karst. exposed to three different concentrations of ozone for three seasons (1985-7) in open-top chambers. The treatments were ch... | 0 |
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