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 |
|---|---|---|---|---|---|
41,884 | Study of the effects of ozone in emphysematous rats | Dormans, JAMA; van Bree, L; Boere, AJF; Marra, M; Rombout, PJA | 1,989 | The effects of short-term exposure to ozone on control and elastase-induced emphysematous rats were examined to investigate whether emphysema would change the pulmonary susceptibility to oxidant air pollution. Emphysema was induced in rats after a single intratracheal instillation of 0.2 IU elastase/g body weight. Hist... | 0 |
43,936 | Genetic effects of air pollutants in forest tree populations: Proceedings of the joint meeting of the IUFRO working parties | null | 1,989 | null | 0 |
27,042 | Use of photozone to combat the "sick building syndrome" | Van Lennep, DE | 1,989 | null | 0 |
37,021 | Ammonia volatilization from arable and grassland soils | Van der Molen, J; Bussink, DW; Vertregt, N; Van Faassen, HG; Den Boer, DJ | 1,989 | null | 0 |
42,027 | Short-term pulmonary function change in association with ozone levels | Kinney, PL; Ware, JH; Spengler, JD; Dockery, DW; Speizer, FE; Ferris, BG, Jr | 1,989 | As part of the ongoing Harvard Six Cities study of the respiratory effects of air pollution, repeated measurements of pulmonary function (FVC, FEV75, MMEF, and Vmax75) were taken at approximately weekly intervals in a population of 154 school children living in Kingston and Harriman, Tennessee. A series of as many as s... | 0 |
42,018 | Morphological study of the effects of ozone on rat lung: II long-term exposure | Hiroshima, K; Kohno, T; Ohwada, H; Hayashi, Y | 1,989 | To evaluate the morphological changes observed in animals after prolonged ozone exposure, 56 male rats were exposed to a high ambient level of ozone (0.5 ppm) 6 hr a day, 6 days a week, for 2, 3, 5, and 12 months and examined by light and electron microscopy. Bronchitis and peribronchitis were observed throughout the e... | 0 |
43,354 | Effects of air pollutants on reproductive processes of poplar (Populus spp) and Scots pine (Pinus sylvestris L) | Venne, H; Scholz, F; Vornweg | 1,989 | null | 0 |
40,393 | Response of normal infants to inhaled histamine | LeSouef, PN; Geelhoed, GC; Turner, DJ; Morgan, SEG; Landau, LI | 1,989 | The age at which nonspecific bronchial hyperresponsiveness (BHR) is first seen in humans is unknown, though both genetic and environmental factors have been implicated in its development. The current study aimed to establish whether BHR to histamine can be demonstrated in normal infants. Twelve infants, mean age of 7.8... | 0 |
43,248 | Ozone trends in Atlanta, Georgia: have emission controls been effective? | Lindsay, RW; Richardson, JL; Chameides, WL | 1,989 | Nine years of summertime ozone data from the Atlanta metropolitan area are analyzed and compared to local emissions of volatile organic carbon and nitrogen oxides. Trends from 1979 to 1987 were studied for the number of days per year ozone exceeded the NAAQS standard, the second-highest ozone level observed per year, a... | 0 |
43,820 | Long-term ozone exposure affects winter hardiness of red spruce (Picea rubens Sarg) seedlings | Fincher, J; Cumming, JR; Alscher, RG; Rubin, G; Weinstein, L | 1,989 | Red spruce (Picea rubens Sarg.) seedlings were exposed to elevated levels of ozone during a growing season and into the period of early winter frosts. Samples were taken for histological analysis, chlorophyll content, and carotenoid content. Ozone treatments increased mesophyll cell disruption after frosts in early win... | 0 |
42,100 | Expression of the fibronectin gene | Dean, DC | 1,989 | null | 0 |
43,943 | Wintertime source-reconciliation of ambient organics | Aronian, PF; Scheff, PA; Wadden, RA | 1,989 | BIOSIS COPYRIGHT: BIOL ABS. RRM VOLATILE ORGANIC COMPOUNDS AIR POLLUTION MODEL SUBURBAN INNER CITY INDUSTRIAL CHICAGO ILLINOIS USA | 0 |
44,003 | Global temperature variations since 1861: the influence of the Southern Oscillation and a look at recent trends | Jones, PD | 1,989 | null | 0 |
45,474 | Studies of the structure and reactivity of soot | Smith, DM; Akhter, MS; Jassim, JA; Sergides, CA; Welch, WF; Chughtai, AR | 1,989 | Vibrational spectroscopy, supplemented with other techniques, is providing a comprehensive picture of the structure and reactivity of soot. Reactions such as soot-N02/N204, soot-03, and soot-SO2, at atmospheric
and subatmospheric pressures and at different temperatures, have been studied. Determination of the kinetics... | 0 |
42,293 | Environmental pollutants and age | Drechsler-Parks, DM; Horvath, SM; Bedi, JF | 1,989 | null | 0 |
42,019 | Comparison of acute ozone-induced nasal and pulmonary inflammatory responses in rats | Hotchkiss, JA; Harkema, JR; Sun, JD; Henderson, RF | 1,989 | The centriacinar pulmonary lesion induced by ozone has been extensively characterized, but little is known about the effects of this oxidant gas in the upper airways. The present study was designed to compare the effects of acute ozone exposure in the nose and lungs of rats. We examined the cellular inflammatory respon... | 1 |
73,252 | Comparative toxicity of ambient air pollutants: some aspects related to lung defense | Schlesinger, RB | 1,989 | Clearance mechanisms are an integral part of pulmonary defense, serving to rid the lungs of inhaled particles that deposit upon airway surfaces. This is accomplished by mucociliary transport in conducting airways and to a large extent by alveolar macrophages in the respiratory region. This paper compares the effects of... | 0 |
42,188 | Catching our breath: next steps for reducing urban ozone | null | 1,989 | null | 0 |
41,933 | Potential effects of stratospheric ozone depletion and global temperature rise on urban photochemistry | Gery, MW; Edmond, RD; Whitten, GZ | 1,989 | null | 0 |
65,280 | Interspecies comparisons of lung responses to inhaled particles and gases | Warheit, DB | 1,989 | Two important challenges for inhalation toxicologists involve the elucidation of mechanisms of lung toxicity caused by inhalation of chemicals or particulate materials, as well as the extrapolation of animal data to humans. Because risk estimates of toxicity generally are dependent upon experimental data for which a va... | 0 |
644,637 | An assessment of peak expiratory flow as a surrogate measurement of FEV1 in stable asthmatic children | Meltzer, AA; Smolensky, MH; D'Alonzo, GE; Harrist, RB; Scott, PH | 1,989 | We examined the relationship over 24 hours between percent-predicted values (PPV) of peak expiratory flow (PEF) and forced expiratory volume in one second (FEV1) in a group of 23 stable untreated asthmatic children 6 to 17 years of age by means of regression analysis as well as the percentage difference between the PPV... | 0 |
37,729 | Measuring trace gases with FM spectroscopy | Hansen, DA | 1,989 | null | 0 |
43,088 | EPA regional oxidant model (ROM20): evaluation on 1980 NEROS data bases | Schere, KL; Wayland, RA | 1,989 | null | 0 |
42,083 | Development of a new regional human exposure (REHEX) model and its application to the California South Coast Air Basin | Lurmann, FW; Coyner, L; Winer, AM; Colome, S | 1,989 | null | 0 |
44,030 | Air quality management in Los Angeles: perspectives on past and future emission control strategies | Lloyd, AC; Lents, JM; Green, C; Nemeth, P | 1,989 | null | 0 |
43,751 | Response of red spruce seedlings exposed to ozone and simulated acidic precipitation in the field | Laurence, JA; Kohut, RJ; Amundson, RG | 1,989 | Open-top chambers were used in the field to subject one-year old red spruce seedlings to ozone at four levels, and simulated acidic precipitation at three levels. The O sub(3) concentrations employed were 0.5-2.0 times ambient O sub(3) levels; pH levels of 3.1, 4.1, and 5.1 were also used. Seedlings were harvested at m... | 0 |
42,921 | Reactions of ozone with "alpha"-pinene and "beta"-pinene in air: yields of gaseous and particulate products | Hatakeyama, S; Izumi, K; Fukuyama, T; Akimoto, H | 1,989 | null | 0 |
41,661 | Pulmonary function responses of young and older adults to mixtures of O3, NO2 and PAN | Drechsler-Parks, DM; Bedi, JF; Horvath, SM | 1,989 | The pulmonary function of 32 nonsmokers (eight men and eight women, 18-26 years of age; eight men and eight women, 51-76 years of age) was measured before and after two-hour exposures to (1) filtered air (FA), (2) 0.45 ppm ozone (O3), (3) 0.13 ppm peroxyacetyl nitrate + 0.45 ppm O3 (PAN/O3), (4) 0.60 ppm nitrogen dioxi... | 0 |
42,061 | Sub-chronic respiratory effects from long term exposure to ozone in Tucson | Krzyzanowski, M; Quackenboss, J; Lebowitz, M | 1,989 | null | 0 |
19,355 | Acidic deposition and forest soils: Context and case studies of the southeastern United States | null | 1,989 | null | 0 |
41,900 | Adaptation by older individuals repeatedly exposed to 045 parts per million ozone for two hours | Bedi, JF; Horvath, SM; Drechsler-Parks, DM | 1,989 | To test for an increased reaction to ozone (O3) in older individuals following an initial exposure, and to test for adaptation and its duration, we exposed 10 men and 6 women (60-89 years old) in an environmental chamber to filtered air and 3 consecutive days of O3 exposure (0.45 ppm), followed by a fourth O3 exposure ... | 0 |
41,733 | Do functional changes in humans correlate with the airway removal efficiency of ozone? | Gerrity, TR; McDonnell, WF | 1,989 | null | 0 |
52,938 | Effects of photochemical smog on growth and injury and gas exchange of pine seedlings | Bytnerowicz, A; Olszyk, DM; Huttunen, S; Takemoto, BK | 1,989 |
One-year-old seedlings of Pinus coulteri, P. ponderosa, P. jeffreyi, and P. sylvestris were exposed for 5 months to ambient photochemical smog (average 24-h monthly concentrations of ozone 0.067 to 0.108 ppm) in the San Gabriel Mountains of the Los Angeles Basin. Plants were grown in open-top chambers ("ambient-air" ... | 0 |
43,348 | Growth and yield responses of processing tomato (Lycopersicon esculentum Mill) cultivars to ozone | Temple, PJ | 1,990 | null | 0 |
41,985 | Growth and gas exchange of loblolly pine seedlings as influenced by drought and air pollutants | Lee, WS; Chevone, BI; Seiler, JR | 1,990 | null | 1 |
43,553 | Gas exchange in Quercus rubra (northern red oak) during a drought: analysis of relations among photosynthesis, transpiration, and leaf conductance | Weber, JA; Gates, DM | 1,990 | null | 0 |
42,927 | Products and mechanisms of gas-phase reactions between NO3 and a series of alkenes | Hjorth, J; Lohse, C; Nielsen, CJ; Skov, H; Restelli, G | 1,990 | null | 0 |
43,321 | Inheritance of ambient ozone insensitivity in common bean (Phaseolus vulgaris L) | Mebrahtu, T; Mersie, W; Rangappa, M | 1,990 | The inheritance of ozone (O(3)) insensitivity in common bean (Phaseolus vulgaris L.) was evaluated using F(2) and F(3) populations under ambient conditions. This study was conducted over two growing seasons (1987, 1988) at Virginia State University, Randolph Research Farm, Petersburg, Virginia. Two populations were obt... | 0 |
42,535 | Effects of ozone on three open-pollinated families of Pinus taeda L grown in two substrates | Horton, SJ; Reinert, RA; Heck, WW | 1,990 | Seedlings from three open-pollinated loblolly pine (Pinus taeda L.) families grown in a mixture of commercial peat moss and grade 3 vermiculite (1:3 by volume) or a mixture of mineral soil and peat (1:1 by volume) were exposed to 0, 160 or 320 ppb ozone (O3) for 6h/day, 4 days/week for 8 weeks beginning 12 weeks after ... | 0 |
42,444 | Increases in endogenous antioxidant enzymes during asbestos inhalation in rats | Janssen, YMW; Marsh, JP; Absher, M; Borm, PJA; Mossman, BT | 1,990 | Although the pathogenesis of asbestos-induced pulmonary damage is still not completely understood, an important role has been attributed to active oxygen species. In the present paper we present results of a study investigating the effect of crocidolite asbestos inhalation on different lung antioxidant enzymes in rats.... | 0 |
42,301 | An analysis of pollutant gas transport and absorption in pulmonary airways | Grotberg, JB; Sheth, BV; Mockros, LF | 1,990 | A mathematical model of ozone absorption, or for any soluble gas that has similar transport properties, is developed for a branching network of liquid-lined cylinders. In particular, we investigate specific flow regimes for finite length tubes where boundary layer phenomena and entrance effects exist in high Reynolds a... | 0 |
48,311 | Cloud draft structure and trace gas transport | Scala, JM; Garstang, M; Tao, WK; Pickering, KE; Thompson, AM; Simpson, J; Kirchhoff, V; Browell, EV; Sachse, GW; TorresAL; Gregory, GL; Rasmussen, RW; Khalil, MAK | 1,990 | Field observations obtained during the second NASA Amazon Boundary Layer Experiment (ABLE2B), and two-dimensional moist cloud model simulations are used to determine the dominant transport pathways within a continental tropical squall line. A surface-based network triangle provided the focus for a multi-instrumental sa... | 0 |
40,688 | Surface ozone exposures measured at clean locations around the world | Lefohn, AS; Krupa, SV; Winstanley, D | 1,990 | For assessing the effects of air pollution on vegetation, some researchers have used control chambers as the basis of comparison between crops and trees grown in contemporary polluted rural locations and those grown in a clean environment. There has been some concern whether the arbitrary ozone level of 0A025 ppm and b... | 0 |
42,300 | Gas absorption in pulmonary airways at low Peclet number | Grotberg, JB | 1,990 | A mathematical model is presented that investigates the mass transport of a diffusible and soluble gas contaminant through a liquid-lined tube when the Peclet number is small. The transport is determined by four dimensionless parameters: lambda, the tube aspect ratio; d, the relative difference in end concentrations; g... | 0 |
80,384 | The valley of Mexico: summary of observational studies on its air quality and effects on vegetation | De Bauer, LI; Krupa, SV | 1,990 | Present day Mexico City was established on the banks of the now dead Lake Texcoco by Aztec Indians in AD1325. Over time, increasing population growth, urbanization, vehicular traffic and the number of diverse stationary sources, coupled with its topography and the resultant frequency of prevalent stagnant air masses m... | 0 |
42,360 | Age-dependent effect of ozone on pulmonary eicosanoid metabolism in rabbits and rats | Gunnison, AF; Finkelstein, I; Weideman, P; Su, WY; Sobo, M; Schlesinger, RB | 1,990 | Acute exposures to ozone have previously been shown to cause quantitative changes in the spectrum of arachidonic acid (AA) metabolites in lung lavage fluid. Since age appears to be an important variable in the toxicity of inhaled ozone, we investigated its effect on ozone-induced changes in pulmonary eicosanoid metabol... | 0 |
77,456 | On-road carbon monoxide emission measurement comparisons for the 1988-1989 Colorado oxy-fuels program | Bishop, GA; Stedman, DH | 1,990 | University of Denver; AMAX Foundation; National Science Foundation; AMACO Corp.; Diamond Shamrock; Marathon Oil Co.; Phillips Petroleum; Total Petroleum; Shell Oil Co. | 0 |
91,943 | Patterns of organic acid transport from forested watersheds to aquatic ecosystems | Cronan, CS; Perdue, EM; Gjessing, ET | 1,990 | null | 0 |
42,224 | Effects of ozone inhalation on polyamine metabolism and tritiated thymidine incorporation into DNA of rat lungs | Elsayed, NM; Ellingson, AS; Tierney, DF; Mustafa, MG | 1,990 | We examined the effects of low-level ozone (O3) inhalation on polyamine metabolism and tritiated thymidine (3H-TdR) incorporation into DNA in rat lungs. We have also compared the activities of ornithine decarboxylase (ODC), the rate-limiting enzyme of polyamine biosynthesis, and glucose-6-phosphate dehydrogenase (G6PD)... | 0 |
43,847 | Joint action of ozone and hydrogen fluoride on foliar senescence in maize | Maclean, DC | 1,990 | Maize (Zea mays, L.) plants were exposed intermittently to O(3), HF or both pollutants and the progression of foliar senescence was followed by measuring chlorophyll loss, membrane breakdown and changes in stomatal conductance. At concentrations insufficient to cause foliar symptoms (0.06 microl O(3) litre(-1) and 1.0 ... | 0 |
36,630 | Passive smoking, air pollution, and acute respiratory symptoms in a diary study of student nurses | Schwartz, J; Zeger, S | 1,990 | A cohort of approximately 100 student nurses in Los Angeles was recruited for a diary study of the acute effects of air pollution. Smoking histories and presence of asthma and other allergies were determined by questionnaire. Diaries were completed daily and collected weekly for as long as 3 yr. Air pollution was measu... | 0 |
42,886 | Production of hydrogen peroxide in forest air by reaction of ozone with terpenes | Becker, KH; Brockmann, KJ; Bechara, J | 1,990 | null | 0 |
43,100 | Improvement of procedures for evaluating photochemical models | Tesche, TW; Georgopoulos, P; Lurman, FL; Roth, PM; Seinfeld, JH; Cass, G | 1,990 | null | 0 |
42,337 | Improvements in a chemiluminescent ozone analyzer for respiratory applications | Ben-Jebria, A; Hu, SC; Ultman, JS | 1,990 | null | 0 |
43,520 | Growth, ectomycorrhizae and nonstructural carbohydrates of loblolly pine seedlings exposed to ozone and soil water deficit | Meier, S; Grand, LF; Schoeneberger, MM; Reinert, RA; Bruck, RI | 1,990 | Loblolly pine (Pinus taeda) seedlings from three full-sib families were exposed to 0, 50, 100 or 150 ppb ozone (O(3)) (5 h/d, 5 d/week for 6 or 12 weeks). Soil water potential was maintained near pot capacity (-0.03 MPa) or soil was allowed to dry to approximately -1.0 MPa and resaturated. Chlorotic mottling and flecki... | 0 |
43,789 | The influence of ozone, acid mist and soil nutrient status on Norway spruce [Picea abies (L) Karst]: I plant-water relations | Barnes, JD; Eamus, D; Brown, KA | 1,990 | Three-year old Norway spruce [Picea abies (L.) Karst.] trees established from two clones (4076 and 2470) of a medium-altitude southern German provenance, were transplanted in May 1986 into two acid brown earth soils which differed particularly in the amounts of exchangeable Ca 2+ and Mg 2+ . During the summers of 1987 ... | 0 |
7,874 | Myocardial infarction with normal coronary arteries after acute exposure to carbon monoxide | Marius-Nunez, AL | 1,990 | This report describes a 46-year-old white man who suffered an acute myocardial infarction after carbon monoxide exposure. The electrocardiogram and serum enzymes showed myocardial infarction. The coronary angiogram performed one week after admission failed to reveal evidence of coronary obstructive lesions. The case pr... | 0 |
61,225 | Assessing total human exposure to contaminants: A multidisciplinary approach | Lioy, PJ | 1,990 | N/A. | 0 |
43,940 | Receptor model technical series, v III (1989 revision): CMB7 user's manual | Watson, JG; Robinson, NF; Chow, JC; Henry, RC; Kim, B; Nguyen, QT; Meyer, EL; Pace, TG | 1,990 | U.S. Environmental Protection Agency. The chemical mass balance (CMB) receptor model uses chemical concentrations measured in source and receptor samples to estimate the contributions of different source types to ambient pollutant concentrations. The model is used primarily in the development of state implementation pl... | 0 |
43,855 | Response of corn to combinations of atrazine, propyl gallate and ozone | Mersie, W; Mebrahtu, T; Rangappa, M | 1,990 | null | 0 |
44,139 | Model calculations of tropospheric ozone production potential following observed convective events | Pickering, KE; Thompson, AM; Dickerson, RR; Luke, WT; Mcnamara, DP; Greenberg, JP; Zimmerman, PR | 1,990 | null | 0 |
42,557 | Ozone-induced alterations in quantity and activity of rubisco: implications for foliar senescence | Pell, EJ; Enyedi, A; Eckardt, N; Landry, L | 1,990 | null | 0 |
43,617 | Principles of environmental physics | Monteith, JL; Unsworth, MH | 1,990 | null | 0 |
42,285 | Ozone-induced bradycardia and arrhythmia and their relation to sleep-wakefulness in rats | Arito, H; Uchiyama, I; Arakawa, H; Yokoyama, E | 1,990 | Rats were chronically implanted with electrodes for EEG, EMG and ECG recordings and exposed to 0.1 ppm, 0.2 ppm ozone (O3) or clean air as control for 5 consecutive days. Amounts of wakefulness (W), slow-wave sleep (SWS) and paradoxical sleep (PS) of the O3-exposed rats were not statistically different from respective ... | 1 |
6,530 | Interspecies extrapolation of pharmacokinetics | Travis, CC; White, RK; Ward, RC | 1,990 | The purpose of this paper is to use physiologically based pharmacokinetic models to demonstrate that if toxic response is a function of the time profile in physiological time of the concentration of the toxic moiety in the target tissue, then the appropriate interspecies scaling law for toxic compounds which are metabo... | 0 |
43,101 | Ozone modeling protocol for the San Diego air quality study | Tesche, TW; Balentine, H; Fosdick, E | 1,990 | null | 0 |
43,823 | Effects of low-level long-term ozone fumigation and acid mist on photosynthesis and stomata of clonal Norway spruce (Picea abies (L) Karst) | Fuhrer, G; Dunkl, M; Knoppick, D; Selinger, H; Blank, LW; Payer, HD; Lange, OL | 1,990 | null | 0 |
42,987 | Apparent partition coefficients of 15 carbonyl compounds between air and seawater and between air and freshwater; implications for air-sea exchange | Zhou, X; Mopper, K | 1,990 | #Apparent partition coefficients (K*, in M/atm) of 15 carbonyl compounds between water and air were determined as a function of temperature, salinity, and pH, using a bubble column technique. Values for K* decrease with increasing carbon number of alkanals; e.g., at 25?C apparent partition coefficients between air and... | 0 |
43,318 | Effects of ozone on gas exchange, frost resistance, flushing and growth of different provenances of European silver fir (Abies alba Mill) | Larsen, JB; Yang, W; Tiedemann, AV | 1,990 | Photosynthesis, respiration, and transpiration were studied in different Abies alba provenances during and alter ozone exposure at three different levels (0/control, 125, and 250 ppb O3, respectively). The after-effects of ozone on frost resistance and growth rate were also analyzed.
Pronounced reductions of photosynt... | 0 |
43,509 | Effects of ozone on starch accumulation in Norway spruce (Picea abies) | Luethy-Krause, B; Landolt, W | 1,990 | null | 0 |
37,285 | Effects of short-term, single and combined exposure to low-level NO2 and O3 on lung tissue enzyme activities in rats | Lee, JS; Mustafa, MG; Afifi, AA | 1,990 | To examine the pulmonary effects of relatively low levels of NO2 and O3 and test for any possible interaction in their effects, we exposed 3-mo-old male Sprague-Dawley rats, free of specific pathogens, to either filtered room air (control) or 1.20 ppm (2256 .mu.g/m3) NO2, 0.30 ppm (588 .mu.g/m3) O3, or a combination of... | 0 |
52,217 | Kinetics of the gas-phase reactions of OH and NO3 radicals with 2-carene, 1,8-cineole, p-cymene, and terpinolene | Corchnoy, SB; Atkinson, R | 1,990 | Rate constants for the gas-phase reactions of OH and NO3 radicals with the biogenically emitted monoterpenes 2-carene and terpinolene and the related compounds 1,8-cineole and p-cymene have been determined at 295 .+-. 2 K and atmospheric pressure by using relative rate methods. The rate constants obtained were (cm3 mol... | 0 |
42,382 | Whole-plant 14C-photosynthate allocation in Pinus taeda: seasonal patterns at ambient and elevated ozone levels | Adams, MB; Edwards, NT; Taylor, GE, Jr; Skaggs, BL | 1,990 | null | 0 |
39,072 | The 1985 NAPAP emissions inventory (version 2): Development of the national utility reference file: Project summary | null | 1,990 | null | 0 |
42,505 | Noninvasive determination of respiratory ozone absorption: development of a fast-responding ozone analyzer | Ultman, JS; Ben-Jebria, A | 1,990 | null | 0 |
79,897 | Isolation of complementary DNA clones encoding pathogenesis-related proteins P and Q, two acidic chitinases from tobacco | Payne, G; Ahl, P; Moyer, M; Harper, A; Beck, J; Meins, F, Jr; Ryals, J | 1,990 | Complementary DNA clones encoding two isoforms of the acidic endochitinase (chitinase, EC 3.2.1.14) from tobacco were isolated. Comparison of amino acid sequences deduced from the cDNA clones and the sequence of peptides derived from purified proteins show that these clones encode the pathogenesis-related proteins PR-P... | 0 |
42,363 | Acute, subchronic, and chronic exposure to a simulated urban profile of ozone: Effects on extrapulmonary natural killer cell activity and lymphocyte mitogenic responses | Selgrade, MK; Daniels, MJ; Grose, EC | 1,990 | Rats were exposed for 7, 3, 73, 52, or 78 wk to air or a simulated urban profile of 0,
designed to mimic diurnal exposure patterns frequently seen in worst-case summer
environments. Daily exposures consisted of a background level of 0.06 ppm for a
period of 73 h, a broad exposure spike rising from 0.06 to 0.25 ppm and ... | 1 |
42,324 | Chromosome damage in rat pulmonary alveolar macrophages following ozone inhalation | Rithidech, K; Hotchkiss, JA; Griffith, WC; Henderson, RF; Brooks, AL | 1,990 | To determine whether ozone is clastogenic at environmentally relevant exposure levels, rats were exposed for 6 h to 0, 0.12, 0.27, or 0.80 ppm ozone. The alveolar macrophages were isolated from animals sacrificed 28 h after the end of the exposure. The mitotic index and frequency of chromosome aberrations were determin... | 0 |
43,793 | Impact of ozone, acid mist and soil characteristics on growth and development of fine roots and ectomycorrhiza of young clonal Norway spruce | Blaschke, H; Weiss, M | 1,990 | null | 0 |
43,609 | Effects of ozone on growth and dry matter partitioning in different provenances of Norway spruce (Picea abies (L) Karst) | Mortensen, LM | 1,990 | null | 0 |
43,791 | Effects of ozone, acid mist and soil characteristics on clonal Norway spruce (Picea abies (L) Karst) - an introduction to the joint 14 month tree exposure experiment in closed chambers | Blank, LW; Payer, HD; Pfirrmann, T; Gnatz, G; Kloos, M; Runkel, KH; Schmolke, W; Strube, D; Rehfuess, KE | 1,990 | This paper introduces a series of publications referring to a single 14-month laboratory study testing the hypothesis that the recent decline of Norway spruce (Picea abies (L.) Karst.) at higher elevations of the Bavarian Forest and comparable forests in medium-range mountains and in the calcareous Alps is caused by an... | 0 |
41,992 | Measurements of cardiopulmonary response in awake rats during acute exposure to near-ambient concentrations of ozone | Tepper, JS; Wiester, MJ; Weber, MF; Menache, MG | 1,990 | Cardiopulmonary responses during acute exposure to near-ambient (less than or equal to 1.0 ppm) concentrations of ozone (O3) have not been reported for the unanesthetized rat. Such data on species sensitivity are crucial for the extrapolation of animal data to man. Therefore, this study was conducted to obtain function... | 0 |
37,668 | Asthma attack periodicity: A study of hospital emergency visits in Vancouver | Bates, DV; Baker-Anderson, M; Sizto, R | 1,990 | Attendances at the emergency departments of the nine acute care hospitals serving the Vancouver region, with a population of just under a million people, were recorded from July 1, 1984 to October 31, 1986. Of about 25,500 visits a month, 2.7% were for respiratory conditions; and of these, 41.3% were for asthma. Data f... | 0 |
42,414 | Studies on the biological effects of ozone 1 induction of interferon "gamma" on human leucocytes | Bocci, V; Paulesu, L | 1,990 | null | 0 |
42,195 | Effect of exposures to ambient ozone on ventilatory lung function in children | Higgins, ITT; D'Arcy, JB; Gibbons, DI; Avol, EL; Gross, KB | 1,990 | This study was undertaken to determine if the ventilatory capacity of children is affected by hourly concentrations of ozone inhaled during their daily activity. Over a 3-wk period (June-July 1987) children who were attending a summer camp in the San Bernardino mountains of California performed spirometry up to three t... | 1 |
42,196 | Influenza virus infection, ozone exposure, and fibrogenesis | Jakab, GJ; Bassett, DJP | 1,990 | Oxidant exposure following chemically induced lung injury exacerbates the tendency to develop pulmonary fibrosis. Influenza virus pneumonitis causes severe acute lung damage that, upon resolution, is followed by a persistent alveolitis and parenchymal changes characterized by patchy interstitial pneumonia and collagen ... | 1 |
43,626 | A bioeconomic analysis of water allocations and fish habitat enhancements, John Day Basin, Oregon | Adams, RM; Klingeman, PC; Li, HW | 1,990 | null | 0 |
42,203 | Circulating factors that modify lung cell DNA synthesis following exposure to inhaled oxidants. II. Effect of serum and lavage on lung pneumocytes following exposure of adult rats to 1 ppm ozone | Tanswell, AK; Fraher, LJ; Grose, EC | 1,990 | Adult rats were exposed to 1 ppm (1.96 mg/m3) ozone or air for 2 wk. Animals were sacrificed at 3, 5, 7, or 14 d after the onset of exposure, and samples of plasma and lung lavage were obtained. Heat?inactivated plasma and lavage from animals exposed to ozone for 5 or 7 d significantly increased DNA synthesis by lung p... | 0 |
44,107 | User's guide for the urban airshed model, volume II: user's manual for the UAM (CB-IV) modeling system | null | 1,990 | null | 0 |
42,238 | Prior exposure to ozone potentiates subsequent response to sulfur dioxide in adolescent asthmatic subjects | Koenig, JQ; Covert, DS; Hanley, QS; Van Belle, G; Pierson, WE | 1,990 | The objective of this study was to test whether prior exposure to a low concentration of ozone (120 ppb) would condition airways in asthmatic subjects to respond to a subthreshold concentration of sulfur dioxide (100 ppb). Eight male and five female subjects 12 to 18 yr of age participated. They all had allergic asthma... | 0 |
43,848 | Alteration of physiological parameters in needles of cloned spruce trees (Picea abies (L) Karst) by ozone and acid mist | Magel, E; Holl, W; Ziegler, H | 1,990 | null | 0 |
42,186 | The use of quantitative two-dimensional gel electrophoresis to analyze changes in alveolar macrophage proteins in humans exposed to ozone | Devlin, RB; Koren, HS | 1,990 | Acute exposure of humans to 0.4 ppm ozone is known to cause production of components that mediate inflammation and damage in the lung. However, ozone may cause even more extensive changes in the lung than those currently measured by traditional enzymatic or immunologic methods. The contribution of alveolar macrophages ... | 0 |
3,580 | Clean Air Act Amendments of 1990: Conference report to accompany S. 1630 | null | 1,990 | The final version of a massive clean air bill may be brought to the House floor Thursday or Friday, depending upon when staff can wrap up work on the conference report. The publication is a selective summary of the conference report, based on informal staff summaries and draft bill language. Title I of the bill revises... | 0 |
43,960 | Systematic variations in the concentration of NOx (NO plus NO2) at Niwot Ridge, Colorado | Parrish, DD; Hahn, CH; Fahey, DW; Williams, EJ; Bollinger, MJ; Hubler, G; Buhr, MP; Murphy, PC; Trainer, M; Hsie, EY; Liu, SC; Fehsenfeld, FC | 1,990 | null | 0 |
42,281 | Breathing and lung mechanics in hamsters: effect of pentobarbital anesthesia | Skornick, WA; Brain, JD | 1,990 | null | 0 |
42,190 | Pulmonary response to ozone: reaction of bronchus-associated lymphoid tissue and lymph node lymphocytes in the rat | Dziedzic, D; Wright, ES; Sargent, NE | 1,990 | The purpose of this work is to assess the effect of ozone, a reactive product of environmental photochemical oxidation, on lymphocytes of the lung. We exposed male Fischer rats to ozone at a concentration of 0.5 ppm for 20 hr/day for 1-14 days. Animals were treated with radioactive thymidine and were sacrificed at Day ... | 0 |
43,130 | An assessment of the impact of ambient ozone on field-grown crops in New Jersey using the EDU method: part 2--soybean (Glycine max (L) Merr) | Brennan, EG; Clarke, BB; Greenhalgh-Weidmar, B; Smith, G | 1,990 | null | 0 |
43,479 | The influence of ozone, acid mist and soil nutrient status on Norway spruce [Picea abies (L) Karst]: II photosynthesis, dark respiration and soluble carbohydrates of trees during late autumn | Barnes, JD; Eamus, D; Brown, KA | 1,990 | Three-year old Norway spruce [Picea abies (L.) Karst.] trees of clonal stock originating from medium altitude in southern Germany were transplanted in May 1986 into two acid brown-earth soils which differed particularly in the amounts of exchangeable Ca2+ and Mg2+ . During the summers of 1987 and 1988 trees were expose... | 0 |
42,255 | Interactive effects of ozone and formaldehyde on the nasal respiratory lining epithelium in rats | Reuzel, PGJ; Wilmer, JWGM; Woutersen, RA; Zwart, A; Rombout, PJA; Feron, VJ | 1,990 | The combined effects on the nasal epithelium of mixtures of ozone and formaldehyde at cytotoxic and noncytotoxic concentrations were examined. Male Wistar rats were exposed by inhalation during 22 h/d for 3 consecutive days to 0.3, 1, or 3.0 ppm formaldehyde, or to 0.2, 0.4, or 0.8 ppm ozone, or to mixtures of 0.4 ppm ... | 0 |
57,408 | Effects of UV-B radiation on soybean yield and seed quality: a 6-year field study | Teramura, AH; Sullivan, JH; Lydon, J | 1,990 | Two soybean [Glycine max (L.) Merr.] cultivars, Essex and Williams, were grown in the field for 6 consecutive seasons under ambient and supplement levels of ultraviolet-B radiation to determine the potential for alterations in yield or seed quality with a reduction in the stratospheric ozone column. The supplemental UV... | 0 |
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