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int64
0
1
28,703
Black carbon aerosol output from a photocopier
Schnell, RC; Allen, GA; Hansen, ADA
1,992
Summary and conclusions. The impetus for this research was to determine if there was a detectable output of aerosolized toner from an office photocopy machine and a laser printer. We established that this was the case. We are interested in toner as a possible carrier of toxic chemicals to the human skin and respiratory...
0
37,965
Genetic diversity of plant populations and the role of air pollution
Taylor, GE, Jr; Pitelka, LF
1,992
null
0
43,577
Effects of ozone on growth of seven grass and one clover species
Mortensen, LM
1,992
Seven species of grass and one of red clover were grown at different ozone (O3) concentrations for about five weeks in growth chambers located in a greenhouse. At an O3 concentration of 55 compared with 10 nmol mol-1 during 7 h day-1 the shoot dry weight decreased by 45% in Phleum pratense, 28% in Dactylis glomerata an...
0
43,807
Effects of ozone and water deficit on the growth and physiology of Fagus sylvatica
Davidson, SR; Ashmore, MR; Garretty, C
1,992
null
0
42,729
Products and mechanism of the reaction of ozone with phospholipids in unilamellar phospholipid vesicles
Santrock, J; Gorski, RA; O'Gara, JF
1,992
#While considerable effort has been expended on determining the health effects of exposure to typical urban concentrations of O3, little is known about the chemical events responsible for toxicity. Phospholipids containing unsaturated fatty acids in the cell membranes of lung cells are likely reaction sites for inhaled...
0
44,087
Temporal stability of polar organic compounds in stainless steel canisters
Pate, B; Jayanty, RKM; Peterson, MR; Evans, GF
1,992
BIOSIS COPYRIGHT: BIOL ABS. RRM AIR POLLUTION CONTROL EMISSION DISPERSION TOXICITY VOLATILE ORGANIC COMPOUNDS
0
55,547
A method for open-air exposure of plants to ozone
Wulff, A; Hanninen, O; Tuomainen, A; Karenlampi, L
1,992
The great advantage of using open-air exposure systems instead of closed or semi-closed chambers to study the effects of air pollutants on plants is that the microclimate (temperature, light, air movement) around the plants will remain natural. In the computer-controlled, chamberless open-air system described in this p...
0
43,868
CO2 exchange rates of red spruce during the second season of exposure to ozone and acidic cloud deposition
Pier, PA; Thornton, FC; McDuffie, C, Jr; Hanson, PJ
1,992
null
0
43,976
National ambient air quality standards for ozone; Proposed decision
null
1,992
null
0
52,261
Sea-to-air transfer of surface-active organic compounds by bursting bubbles
Tseng, RS; Viechnicki, JT; Skop, RA; Brown, JW
1,992
The bubble transport of natural surfactant materials from seawater to the air-water interface and to the air is investigated experimentally by a radiotracer test system. We have studied the rates at which four lipid materials of differing molecular structure are scavenged from artificial seawater and ejected into the ...
0
42,702
Acute ozone-induced change in airway permeability: role of infiltrating leukocytes
Kleeberger, SR; Hudak, BB
1,992
null
0
38,046
Patterns of tropospheric ozone in forested landscapes of the Integrated Forest Study
Taylor, GE, Jr; Ross-Todd, BM; Allen, E; Conklin, P; Edmonds, R; Joranger, E; Miller, E; Ragsdale, L; Shepard, J; Silsbee, D; Swank, W
1,992
null
0
76,756
The effects of atmospheric deposition and ozone on carbon allocation and associated physiological processes in red spruce
McLaughlin, SB; Kohut, RJ
1,992
null
0
769,077
Passive ozone/oxidant sampler with coulometric determination using iodine/nylon-6 charge-transfer complex
Kanno, S; Yanagisawa, Y
1,992
null
1
43,257
Nonlinear regression with variance components
Gumpertz, ML; Pantula, SG
1,992
The nonlinear model with variance components, which combines a nonlinear model for the mean with additive random effects, is applicable to split-plot and nested experiments. We propose two methods of estimation for the parameters of the nonlinear model for the mean: (1) estimated generalized least squares (EGLS), and (...
0
43,927
Key processes from tree to stand level
Hinckley, T; Ford, D; Segura, G; Sprugel, D
1,992
Changes an six factors have been identified as having potential major future impacts on the productivity and survival of forest trees and stands. These factors are atmospheric carbon dioxide concentration, tropospheric ozone concentration, mean annual air temperature and precipitation, extremes in temperature and preci...
0
78,577
Foreword
Manion, PD; Lachance, D
1,992
null
0
43,211
Effects and interactions of ozone and the anti-ozonant EDU at different stages of radish (Raphanus sativus L) development
Kostka-Rick, R; Manning, WJ
1,992
The use of the anti-ozonant ethylenediurea (EDU) to assess crop losses due to atmospheric ozone (O3), is controversial because of incomplete knowledge on the optimal dosage, the extent of protection provided and potential effects on plant performance of EDU per se. In a greenhouse experiment, radish (Raphanus sativus L...
0
42,437
Modification of ozone (O3) toxicity by ambient temperature (Ta) in the rat: effects on bronchoalveolar lavage fluid (BAL)
Wiester, MJ; Watkinson, WP; Costa, DL
1,992
null
0
42,445
Ozone toxicity in the unanesthetized, unrestrained rat: effect of changes in ambient temperature on physiological parameters
Watkinson, WP; Wiester, MJ; Campen, MJ; Richardson, VM
1,992
null
0
2,079,269
Recovery of temperate stream fish communities from disturbance: a review of case studies and synthesis of theory
Detenbeck, NE; Devore, PW; Niemi, GJ; Lima, A
1,992
To evaluate the relative effect of autecologic factors, site-specific factors, disturbance characteristics, and community structure on the recovery of temperate-stream fish communities, we reviewed case histories for 49 sites and recorded data on 411 recovery end points. Most data were derived from studies of low-gradi...
0
42,597
Effects of air pollution on Pinus halepensis (Mill): pollution levels in Attica, Greece
Velissariou, D; Davison, AW; Barnes, JD; Pfirrmann, T; Maclean, DC; Holevas, CD
1,992
Air quality in the Athens basin is well known to be poor, damaging building materials and human health, but there is no information available on concentrations or the impact of oxidants on ecosystems in rural areas outside the basin. A short-term monitoring campaign, coupled with a survey using the O3 bioindicator Bel-...
0
43,234
Forest trees and tropospheric ozone: role of canopy deposition and leaf uptake in developing exposure-response relationships
Taylor, GE, Jr; Hanson, PJ
1,992
The development of ozone exposure-response relationships for forests must account for sources of variation in the atmosphere (e.g. ozone exposure dynamics) and the biosphere (i.e. ecological and physiological processes that govern pollutant transport and metabolic response). Whereas considerable effort has been devoted...
0
43,544
Ethylene production by different age class ponderosa and Jeffery pine needles as related to ozone exposure and visible injury
Telewski, FW
1,992
null
0
78,594
Effects of open-top chambers on 'Valencia' orange trees
Olszyk, DM; Takemoto, BK; Kats, G; Dawson, PJ; Morrison, CL; Preston, JW; Thompson, CR
1,992
null
0
42,966
Determination of the relative ozone and PAN deposition velocities at night
Shepson, PB; Bottenheim, JW; Hastie, DR; Venkatram, A
1,992
A series of measurements of PAN and ozone was conducted during summer at three rural sites in Canada: Egbert and Dorset, Ontario, and Kejimkujik, Nova Scotia. For nights when a stable surface inversion layer forms, ozone and PAN at the surface are found to undergo first order decay, assumed to be due only to dry deposi...
0
42,985
Dry deposition of atmospheric contaminants: the relative importance of aerodynamic, boundary layer, and surface resistances
Wu, YL; Davidson, CI; Dolske, DA; Sherwoo
1,992
Measurements of dry deposition were conducted to potted plants at Claremont, CA, during the Southern California Air Quality Study and to patches on an equestrian statue at Gettysburg National Military Park, PA. Simultaneous dry deposition measurements were also conducted on aerodynamically designed surrogate surfaces (...
0
42,836
Understanding mechanisms of carcinogenesis using rat tracheal epithelial cells in vitro
Thomassen, DG
1,992
null
0
43,006
Human health effects of air pollution
Folinsbee, LJ
1,992
Over the past three or four decades, there have been important advances in the understanding of the actions, exposure-response characteristics, and mechanisms of action of many common air pollutants. A multidisciplinary approach using epidemiology, animal toxicology, and controlled human exposure studies has contribute...
0
78,532
Architecture of the tracheobronchial tree
McBride, JT
1,992
null
1
733,435
Mucous lining layers in human and rat airways
Mercer, RR; Russell, ML; Crapo, JD
1,992
null
1
76,076
A field chamber for testing air pollution effects on mature trees
Albaugh, TJ; Mowry, FL; Kress, LW
1,992
null
0
38,971
Ozone in Great Smoky Mountains National Park: Dynamics and effects on plants
Neufeld, HS; Renfro, JR; Hacker, WD; Silsbee, D
1,992
null
1
38,130
Soil chemistry and nutrition of North American spruce-fir stands: Evidence for recent change
Joslin, JD; Kelly, JM; Van Miegroet, H
1,992
One set of hypotheses offered to explain the decline of red spruce (Picea rubens Sarg.) in eastern North America focuses on the effect of acidic deposition on soil chemistry changes that may affect nutrient availability and root function. Long-term soils data suggest that soil acidification has occurred in some spruce ...
0
42,822
Acute ozone-induced lung injury in neutrophil-depleted rats
Pino, MV; Stovall, MY; Levin, JR; Devlin, RB; Koren, HS; Hyde, DM
1,992
null
0
42,986
Photochemical aerosol formation from "alpha"-pinene and "beta"-pinene
Zhang, SH; Shaw, M; Seinfeld, JH; Flagan, RC
1,992
Coordinating Research Council; National Science Foundation. Aerosol formation from a-pinene and ?-pinene was studied in a series of outdoor smog chamber experiments. Since a previous study focused on ?-pinene (Pandis et al., 1991), more attention was given here to a-pinene. The initial hydrocarbon and NOx concentratio...
0
44,105
Emissions modeling: status and new directions
Tesche, TW
1,992
null
0
28,411
Indoor chemistry: ozone, volatile organic compounds, and carpets
Weschler, CJ; Hodgson, AT; Wooley, JD
1,992
#Volatile organic compounds (VOCs) have been measured in a freshly carpeted 20-m3 stainless-steel room in both the absence and presence of ozone (ozone concentrations ranging from 30 to 50 ppb, with one experiment conducted at 400 ppb). Four different types of carpeting were exposed, and in each set of experiments, the...
0
777,530
The influence of ozone on the stomatal and non-stomatal limitation of photosynthesis in Norway spruce, Picea abies (L.) Karst, exposed to soil moisture deficit
Wallin, G; Skarby, L
1,992
null
1
43,372
The characterization of ambient ozone exposures
Lefohn, AS
1,992
null
0
47,742
Seasonal cycle of surface ozone over the North Atlantic
Oltmans, SJ; Levy H, II
1,992
SUMMARY THE possible impact of pollution from North America and Europe on tropospheric ozone throughout the Northern Hemisphere is a major environmental concern1-4. We report here continuous measurements of ozone from Bermuda (32? N, 65? W) and Barbados (13? N, 60? W), which suggest that despite their proximity to ...
0
45,897
Exploration of the AIRS database: weekly cycle of ozone and PM 10 aerosols
Husar, RB; Poirot, R
1,992
null
0
26,469
Air pollution interactions with natural stressors
Colls, JJ; Unsworth, MH
1,992
A complete review of solid, liquid, and gaseous air pollutants and their impacts on plant and animal species, in combination with the full range of natural stresses, is clearly outside the scope of this chapter. We focus here on plants; on the four primary phytotoxic gases, ozone (03), nitric oxide (NO), nitrogen dioxi...
1
38,154
Ozone control strategies based on the ratio of volatile organic compounds to nitrogen oxides
Wolff, GT; Korsog, PE
1,992
The 1990 Clean Air Act Amendments require states with O3 nonattainment areas to adopt regulations to enforce reasonable available control technologies (RACT) for NOx stationary sources by November 1992. However, if the states can demonstrate that such measures will have an adverse effect on air quality, NOx requirement...
0
44,415
Air pollution and infant mortality in the Czech Republic, 1986-1988
Bobak, M; Leon, DA
1,992
An ecological study of infant mortality and air pollution was conducted in the Czech Republic. Routinely collected data on infant mortality and air pollution in the period 1986-88 were analysed for the 46 of the 85 districts in the republic for which both were available. The independent effects of total suspended parti...
0
43,584
Growth and physiological characteristics of soybean in open-top chambers in response to ozone and increased atmospheric CO2
Mulchi, CL; Slaughter, L; Saleem, M; Lee, EH; Pausch, R; Rowland, R
1,992
null
0
42,799
Effect of an inhaled thromboxane mimetic (U46619) on in vivo pulmonary resistance and airway hyperresponsiveness in dogs
Jones, GL; Lane, C; O'Byrne, PM
1,992
null
0
14,814
Ozone impacts on foliage dynamics of loblolly pine
Allen, HL; Stow, TK; Chappalka, AH; Kress, LW; Teskey, RO
1,992
Ozone (O3), a pollutant that is known to cause premature foliage loss, may contribute to suboptimum leaf area and growth of loblolly pine (Pinus taeda L) stands in die southeastern United States. Three studies initiated under the auspices of the USDA Forest Service Southern Commercial Forest Research Cooperative provid...
0
43,517
Effect of ozone and aluminum on pitch pine (Pinus rigida) seedlings: anatomy of mycorrhizae
Mcquattie, CJ; Schier, GA
1,992
BIOSIS COPYRIGHT: BIOL ABS. Newly germinated pitch pine (Pinus rigida Mill.) seedlings inoculated with a mycorrhizal fungus (Pisolithus tinctorius (Pers.) Coker and Couch) were grown for 13 weeks in sand irrigated with nutrient solution (pH 4.0) containing 0, 12.5, 25, or 50 mg aluminum (Al) in growth chambers fumi...
0
42,784
Environmental health issues in otolaryngology--head and neck surgery
Gulya, AJ
1,992
null
0
46,125
A time series model for cigarette smoking activity patterns: Model validation for carbon monoxide and respirable particles in a chamber and an automobile
Ott, W; Langan, L; Switzer, P
1,992
Human activity pattern-exposure models require accurate submodels for the exposures in microenvironments that people occupy, including those containing environmental tobacco smoke (ETS). his paper describes the Sequential Cigarette Exposure Model (SCEM), a general-purpose mathematical model developed for calculating th...
0
38,129
Biomass and carbon budget of European forests, 1971 to 1990
Kauppi, PE; Mielikaeinen, K; Kuusela, K
1,992
In severely polluted areas, such as locally in Montshegorsk in northwestern Russia, all trees have died. However, measurements from Austria, Finland, France, Germany, Sweden, and Switzerland show a general increase of forest resources. The fertilization effects of pollutants override the adverse effects at least for th...
0
43,349
Foliar injury responses of ponderosa pine seedlings to ozone, wet and dry acidic deposition, and drought
Temple, PJ; Riechers, GH; Miller, PR
1,992
A 3-year field study of the potential interactions of ozone (O3), wet and dry acidic deposition, and soil water availability on foliar injury responses of 18 ponderosa pine Pinus ponderosa Laws.) families was conducted in the Sierra Nevadas of California. Thirty-six 2-year-old seedlings in each of 30 open-top chambers ...
1
43,802
Response of leaf spectral reflectance in loblolly pine to increased atmospheric ozone and precipitation acidity
Carter, GA; Mitchell, RJ; Chappelka, AH; Brewer, CH
1,992
null
0
42,943
Fundamentals of weather and climate
McIlveen, R
1,992
null
0
43,229
Photosynthesis and growth response of almond to increased atmospheric ozone partial pressures
Retzlaff, WA; Dejong, TM; Williams, LE
1,992
null
0
43,228
Effects of ozone and simulated acidic precipitation on above- and below-ground growth of loblolly pine (Pinus taeda)
Qiu, Z; Chappelka, AH; Somers, GL; Lockaby, BG; Meldahl, RS
1,992
Loblolly pine (Pinus taeda L.) seedlings from two families differing in ozone sensitivity were exposed to four ozone concentrations (charcoal-filtered (subambient ozone concentration), nonfiltered (ambient ozone concentration), nonfiltered x 1.7, and nonfiltered x 2.5) and three levels of acidic precipitation (pH = 3.3...
0
42,392
Concentration-time models for the effects of ozone on bronchoalveolar lavage fluid protein from rats and guinea pigs
Highfill, JW; Hatch, GE; Slade, R; Crissman, KM; Norwood, J; Devlin, RB; Costa, DL
1,992
Questions about the adequacy of the existing ozone (03 standard prompted an examination of relationships between concentration (C) and exposure time fl) and the impact of changes in the C x T product on toxic responses. Using protein concentration of bronchoalveolar lavage fluid (BALP) as an index of 03-induced lung da...
0
43,676
Valuing wildlife resources in Alaska
Peterson, GL; Swanson, CS; McCollum, DW; Thomas MH eds
1,992
null
0
43,652
Comparative evaluation of the effects of gaseous pollutants, acidic deposition and mineral deficiencies on gas exchange of trees
Freer-Smith, PH; Taylor, G
1,992
The effects of gaseous air pollutants, acidic deposition and mineral deficiency on the gas exchange of trees are reviewed, and published data which illustrate important responses are described in detail. Data are presented which show that mixtures of SO2 plus NO2 can decrease photosynthesis in Betula pendula, that ambi...
0
43,657
Assessing economic impacts of air pollution damage to US forests
Haynes, RW; Adams, DM
1,992
null
0
44,100
Using photochemical models in developing attainment strategies: perspectives and problems
Roth, P
1,992
null
0
43,926
Assessment of airway responsiveness to inhaled methacholine and the effects of short-term ozone exposure in aged Fischer-344 rats
Uchida, DA; Ballowe, CA; Irvin, CG; Larsen, GL
1,992
null
0
52,404
Aqueous-phase chemical processes in deliquescent sea-salt aerosols: a mechanism that couples the atmospheric cycles of S and sea salt
Chameides, WL; Stelson, AW
1,992
The aqueous-phase chemistry of deliquescent sea-salt aerosols in the remote marine boundary layer is investigated with a steady state box model. The model simulates the scavenging of soluble and reactive gaseous species by the sea-salt aerosols, the chemical reactions of these species and sea-salt ions in the deliquesc...
0
42,694
Field tests of a passive sampler for atmospheric ozone at California mountain forest locations
Grosjean, D; Williams EL, II
1,992
Field tests of a colorant-based ozone passive sampler have been carried out during the 1990 smog season at five mountain forest locations in California. Co-located measurements of ambient ozone were made at all field sites using the passive sampler and a reference method, ultraviolet (u.v.) photometry. The sampling dur...
0
43,591
Effects of a short ozone exposure given at different stages in the development of Plantago major L
Reiling, K; Davison, AW
1,992
This paper reports a comparison of the effects of the same ozone exposure given at different stages of growth on a population of Plantago major L., which is as sensitive to ozone as Bel-W3 tobacco. Plants were grown from seed for eight weeks in controlled environment chambers and exposed to 70 Al O(3) l(-1) 7 h d(-1) f...
1
44,557
Biomass Burning Airborne and Spaceborne Experiment in the Amazonas (BASE-A)
Kaufman, YJ; Setzer, A; Ward, D; Tanre, D; Holben, BN; Menzel, P; Pereira, MC; Rasmussen, R
1,992
In the Biomass Burning Airborne and Spaceborne Experiment in the Amazonas (BASE-A). conducted in September 1989, trace gas and particulate matter emissions were measured from biomass burning due to deforestation and grassland fires in South America. This information is required for a better understanding of the environ...
0
43,250
An inventory of nitric oxide emissions from soils in the United States
Williams, EJ; Guenther, A; Fehsenfeld, FC
1,992
A national inventory of soil nitric oxide (NO) emissions with county spatial resolution and monthly time resolution has been developed from empirical relationships that were derived from soil NO emissions data. The empirical relationships used to develop the inventory relate the emission of NO to soil temperature and a...
0
43,511
Purification of multiple forms of glutathione reductase from pea (Pisum sativum L) seedlings and enzyme levels in ozone-fumigated pea leaves
Madamanchi, NR; Anderson, JV; Alscher, RG; Cramer, CL; Hess, JL
1,992
Glutathione reductase was purified from pea seedlings using a procedure that included 2',5'-ADP Sepharose, fast protein liquid chromatography (FPLC)-anion exchange, and FPLC-hydrophobic interaction chromatography. The purified glutathione reductase was resolved into six isoforms by chromatofocusing. The isoform eluting...
0
28,741
Ozone and carpets: chemistry with implications for indoor environments
Weschler, CJ; Hodgson, AT; Wooley, JD
1,992
null
0
42,707
Exposure of humans to a volatile organic mixture III Inflammatory response
Koren, HS; Graham, DE; Devlin, RB
1,992
null
0
42,823
Daily mortality and PM10 pollution in Utah valley
Pope CA III; Schwartz, J; Ransom, MR
1,992
Brigham Young University. #The association between daily mortality and respirable particulate pollution (PM10) in Utah County was assessed from April 1985 through December 1989. Poisson regression analysis was used to regress daily death counts on PM10 pollution levels, controlling for variability in the weather. A sig...
0
38,725
Overview of the variable-grid urban airshed model (UAM-V)
Morris, RE; Yocke, MA; Myers, TC; Mirabella, V
1,992
null
0
43,579
Effects of ozone and temperature on growth of several wild plant species
Mortensen, LM; Nilsen, J
1,992
null
0
32,321
An SAB report: Formaldehyde risk assessment update: Review of the Office of Toxic Substances's draft formaldehyde risk assessment update by the environmental health committee
null
1,992
null
0
38,150
Review of the draft: air quality criteria for oxides of nitrogen (EPA/600/8-91/049)
Spengler, JD; Ozkaynak, H; McDermott, A; Brauer, M
1,992
null
0
42,954
Development and evaluation of a photooxidation mechanism for isoprene
Paulson, SE; Seinfeld, JH
1,992
A detailed mechanism for isoprene photooxidation is developed that includes the recent developments on each of isoprenes atmospherically important reactions: 03, OH, (O(P))-P-3, and NO3 as well as the OH reactions of methacrolein and methyl vinyl ketone. The mechanism also attempts to account for the gaps in the produc...
0
43,829
Altered feeding preference of beech weevil Rhynchaenus fagi L for beech foliage under ambient air pollution
Hiltbrunner, E; Fluckiger, W
1,992
null
0
53,041
Effects of ozone on foliar nitrogen metabolism of Pinus taeda L and implications for carbohydrate metabolism
Manderscheid, R; Jager, HJ; Kress, LW
1,992
Dose-response relationship of ozone effects on foliar nitrogen metabolism of two half-sib families of Pinus taeda L. was studied. Trees were exposed to six ozone concentrations, ranging from 0A2 to 3 times the ambient, for two consecutive growing seasons (1988 and 1989) in open-top chambers. Content of total chlorophyl...
0
42,947
Formation of HNO2 on aerosol surfaces during foggy periods in the presence of NO and NO2
Notholt, J; Hjorth, J; Raes, F
1,992
#A commercial Differential Optical Absorption Spectrometer (DOAS), measuring trace gases absorbing in the u.v./vis region was used for obtaining information on aerosol parameters (e.g. total surface) based on the observed Mie scattering. This procedure allows simultaneous measurements of trace gas concentrations and ae...
0
42,692
Ozone is not mutagenic in the Tradescantia and tobacco mutagenicity assays
Gichner, T; Langebartels, C; Sandermann, H, Jr
1,992
null
0
42,648
The exchange of nitric-oxide, nitrogen-dioxide and ozone between pasture and the atmosphere
Hargreaves, KJ; Fowler, D; Storeton-West, RL; Duyzer, JH
1,992
Fluxes of NO, NO2 and O3 were determined over a drained marshland pasture in south-east England by using flux-gradient techniques. Nitric oxide was found to be emitted at rates of up to 40 ng m-2 s-1, the rate of emission being related to the magnitude of the eddy diffusivity. Nitrogen dioxide deposited at rates of up ...
0
39,592
Gross and subgross anatomy of lungs, pleura, connective tissue septa, distal airways, and structural units
Tyler, WS; Julian, MD
1,992
null
0
42,951
Secondary organic aerosol formation and transport
Pandis, SN; Harley, RA; Cass, GR; Seinfeld, JH
1,992
Electric Power Research Institute. #A Lagrangian trajectory model simulating the formation, transport and deposition of secondary organic aerosol is developed and applied to the Los Angeles area, for the air pollution episode of 27-28 August 1987. The predicted secondary organic aerosol on 28 August 1987 represents 15-...
0
76,322
Surface level ozone exposures and their effects on vegetation
null
1,992
null
0
42,976
Aerosol formation and growth in atmospheric organic/NOx systems--I Outdoor smog chamber studies of C7- and C8- hydrocarbons
Wang, SC; Paulson, SE; Grosjean, D; Flagan, RC; Seinfeld, JH
1,992
null
0
40,355
Deposition of ozone to a mature spruce forest: Measurements and comparison to models
Enders, G
1,992
Removal of ozone at terrestrial surfaces provides a major sink for tropospheric ozone and, therefore, a constraint on the peak concentrations achieved during photochemical episodes. This study reports results from 5 years of almost continuous measurements of vertical profiles of ozone and related meteorological variabl...
1
43,231
Effects of ambient air pollution in open-top chambers on bean (Phaseolus vulgaris L): I effects on growth and yield
Schenone, G; Botteschi, G; Fumagalli, I; Montinaro, F
1,992
Field-grown bean crops (Phaseolus vulgaris L.) were exposed to either ambient non-filtered or filtered air in open-top chambers at two sites in the Po plain (Northern Italy) in 1988 and 1989. Three cultivars were utilized in 1988 (Taylor's Horticultural, Lingua di Fuoco, Saluggia), one in 1989 (Taylor's Horticultural)....
0
43,907
Methane reductions: implications for global warming and atmospheric chemical change
Thompson, AM; Hogan, KB; Hoffman, JS
1,992
INTRODUCTION The modern ice-core record shows a doubling of atmospheric CH4 concentrations between 1750 and the present after nearly constant levels (0.7 ppmv CH4) during the prior 2700 years. The 0.7 ppmv CH4 level was rarely exceeded during the preceding 3400-160,000 years where the ice-core CH4 and temperature re...
0
43,474
Seasonal variation in the antioxidant system of eastern white pine needles: evidence for thermal dependence
Anderson, JV; Chevone, BI; Hess, JL
1,992
null
0
94,075
Effects of ambient ozone concentrations on mature eastern hardwood trees growing in Great Smoky Mountains National Park and Shenandoah National Park
Chappelka, AH; Hildebrand, E; Skelly, JM; Mangis, D; Renfro, JR
1,992
null
0
43,724
Air quality and deposition
Bohm, M
1,992
null
0
94,065
Evaluated kinetic and photochemical data for atmospheric chemistry: Supplement IV, IUPAC Subcommittee on Gas Kinetic Data Evaluation for Atmospheric Chemistry
Atkinson, R; Baulch, DL; Cox, RA; Hampson, RF, Jr; Kerr, JA; Troe, J
1,992
This paper updates and extends previous critical evaluations of the kinetics and photochemistry of gas phase chemical reactions of neutral species involved in atmosphere chemistry [J. Phys. Chem. Ref. Data 9, 295 (1980); 11, 327 (1982); 13, 1259 (1984); 18, 881 (1989)]. The work has been carried out by the authors unde...
0
38,776
Mild ozone exposure alters 14C dynamics in foliage of Pinus taeda L
Friend, AL; Tomlinson, PT
1,992
null
0
40,693
The characterization and comparision of ozone exposure indices used in assessing the response of loblolly pine to ozone
Lefohn, AS; Shadwick, DS; Somerville, MC; Chappelka, AH; Lockaby, BG; Meldahl, RS
1,992
null
0
42,953
Interdependence of the slopes and intercepts from log-log correlations of measured gas-particle partitioning and vapor pressure - I theory and analysis of available data
Pankow, JF; Bidleman, TF
1,992
null
0
42,735
Alteration in surface structure of Clara cells and pulmonary cytochrome P-450b level in rats exposed to ozone
Suzuki, E; Takahashi, Y; Aida, S; Kimula, Y; Ito, Y; Miura, T
1,992
Changes in the surface structure of Clara cells in the terminal bronchioles following exposure of rats to 0.4 ppm ozone (O3) for 14 days were evaluated and compared to the content of pulmonary cytochrome P-450, an enzyme active in xenobiotic metabolism. Exposure to O3 caused a striking alteration of Clara cells in the ...
0
42,386
Effects of acute exposure to O3 on rats: Sequence of epithelial and inflammatory changes in the distal airways
Bhalla, DK; Young, C
1,992
This study involves the analysis of the sequence of changes in lung epithelial permeability, free cells in the airways, prostaglandin E2 (PC?;J levels, polymorphonuclear leukocyte (PMN) flux, and alveolar lesions in rats exposed to 0.8 ppm ozone (03 for 3 h and then studied at 4-h intervals up to 24 h postexposure. Pro...
0
43,540
Ozone impacts on seasonal foliage dynamics of young loblolly pine
Stow, TK; Allen, HL; Kress, LW
1,992
#Effects of above- and below-ambient levels of ozone (O3) on the production, abscission, and duration of foliage of young loblolly pine (Pinus taeda L.) grown in open-top chambers were examined in the Piedmont of North Carolina. Assessments of fascicle elongation and number were made at frequent intervals during 1988, ...
0
43,212
Partitioning of biomass and carbohydrates in field-grown radish under ambient concentrations of ozone, and treated with the anti-ozonant ethylene-diurea (EDU)
Kostka-Rick, R; Manning, WJ
1,992
The use of an anti-ozonant provides a potential way for assessing yield losses caused by oxidant air pollution, predominantly ozone (O3), in field-grown crops without the need of enclosures like open-top chambers One major prerequisite for the soundness of this method is the absence of direct effects of the anti-ozonan...
0