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42,479
Ozone dosimetry predictions for humans and rats
Overton, JH; Graham, RC; McCurdy, TR; Richmond, HM
1,990
null
0
42,457
Gas-particle interaction
Last, JA
1,990
null
0
44,108
User's guide for the urban airshed model, volume III: user's manual for the diagnostic wind model
null
1,990
null
0
43,546
Long-term exposure of Norway spruce, Picea abies (L) Karst, to ozone in open-top chambers: I effects on the capacity of net photosynthesis, dark respiration and leaf conductance of shoots of different ages
Wallin, G; Skarby, L; Sellden, G
1,990
Rates of net photosynthesis were measured on 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 non-filtered air + ozone (NF+), non-filtered air (NF) and charcoal-filtered air (CF). Ozone was added daily between ...
0
42,453
Acute and subchronic effects of inhaled fine particles in ozone-containing atmospheres on pulmonary macrophages and respiratory tract epithelia
Kleinman, MT; Bhalla, DK; Ziegler, B; Bucher-Evans, S; Walters, R; McClure, T
1,990
null
0
44,001
Ozone, acidic rain and soil magnesium effects on growth and foliar pigments of Pinus taeda L
Edwards, NT; Taylor, GE, Jr; Adams, MB; Simmons, GL; Kelly, JM
1,990
Height and diameter growth, biomass accumulation and leaf pigment concentrations were measured in loblolly pine (Pinus taeda L.) seedlings grown in soil containing 12 or 35 microg Mg g(-1) and exposed from May to October to subambient, ambient, or twice-ambient ozone (O(3)), and to simulated acidic rain with a pH of ei...
0
37,658
Clean Air Act, as amended by Pub. L. No. 101-549, section 109: National primary and secondary ambient air quality standards, 42 USC ? 7409
null
1,990
null
0
38,850
Southern California air quality study Part I Hydrocarbon collection and analyses Part II Air toxics collection and analyses
Rasmussen, RA
1,990
null
0
43,499
Energy and redox status, and carbon allocation in one- to three-year-old spruce needles
Hampp, R; Einig, W; Egger, B
1,990
Metabolite pools were determined in lyophilized homogenates of one- to three-year-old needles from 13-year-old spruce trees. These were exposed in open-chambers for five consecutive years to SO(2) (30 microg m(-3)) and O(3) (50 to 180 microg m(-3)), singly and in combination. The samples were taken shortly before bud b...
0
43,059
Incorporation of four-dimensional data assimilation into the Colorado State University mesoscale model
McNally, DE
1,990
null
0
42,412
A mechanism for ozone (O3)-induced bradycardia and hypothermia in rats
Tepper, JS; Aileru, AA; Watkinson, WP; Doerfler, DF; Costa, DL
1,991
null
0
43,893
Temperature effects on tomato response to ozone at constant vapor pressure deficit
Todd, AG; Ormrod, DP; Hale, BA; Goodyear, SN
1,991
null
0
11,735
Pollutants measured in forest fires and agricultural burn plumes and their potential influence on exceedances of the ozone standard
Roberts, PT; Anderson, JA
1,991
null
0
37,948
[Croup and air pollution: results of a two-year prospective longitudinal study]
Rebmann, H; Huenges, R; Wichmann, HE; Malin, EM; Hubner, HR; Roll, A; Horz, G; Hub, R; Walter, C; Doller, G; Gerth, HJ
1,991
The Reutlingen/Tubingen/Rottenburg region in Baden-Wurttemberg is characterized by medium and small sized towns and rural areas. In 1986/87 875 cases of croup were registered there by the treating physicians during a 24-months period. In consideration of meteorological and virological
0
17,947
Ozone-induced changes in soybean cell wall physiology
Booker, FL; Fiscus, EL; Miller, JE
1,991
INTRODUCTION One effect of ozone (O3) on plants is a stimulation of phenylpropanoid metabolism similar to that induced by microbial attack (10). Defense responses involving phenylpropanoids include synthesis of isoflavonoid phytoalexins and reinforcement of cell walls by deposition of lignin and related wall-bound ph...
0
44,037
An analysis of the trend in ground-level ozone using non-homogeneous Poisson processes
Shively, TS
1,991
null
0
44,114
Co-occurence of ozone and acidic cloudwater in high-elevation forests
Vong, RJ; Guttorp, P
1,991
null
0
42,766
Strain differences in the response of the rat lung to an acute ozone exposure
Pino, MV; Hyde, DM; Stovall, MY
1,991
null
0
37,929
Concurrent exposure to SO2 and/or NO2 alters growth and yield responses of wheat and barley to low concentrations of O3
Adaros, G; Weigel, HJ; Jager, HJ
1,991
During 1988 and 1989, single and interactive effects of low concentrations of O3, SO2 and NO2 (6-44, 9-63 and 10-43 .mu.g m-3 as 24 h daily means) on two varieties of spring barley (Hordeum vulgare L., 'Arena' and 'Alexis') and spring wheat (Triticum aestivum L., 'Turbo' and 'Star') were investigated in factorial exper...
0
44,268
An analysis of surface ozone data measured at the end of the 19th century in Zagreb, Yugoslavia
Lisac, I; Grubisic, V
1,991
A 12-year record of surface ozone data collected by means of Schoenbein's method in Zagreb, Croatia, Yugoslavia, 1889-1900 is analyzed and calibrated. The data were collected twice a day. To convert the original data into absolute units the Montsouris regression modified by Bojkov has been used. The statistical paramet...
0
57,335
PC-BEIS: a personal computer version of the biogenic emissions inventory system
Pierce, TE; Waldruff, PS
1,991
null
0
2,436
The photooxidation of methyl tertiary butyl ether
Smith, DF; Kleindienst, TE; Hudgens, EE; Mciver, CD; Bufalini, JJ
1,991
Methyl tertiary butyl ether (MTBE) has been proposed and is being used as an additive to increase the octane of gasoline without the use of tetraethyl lead and alkylbenzenes. The present experiments have been performed to examine the kinetics and mechanisms of the atmospheric removal of MTBE. The kinetics of the reacti...
0
42,418
Driver exposure to volatile organic compounds, CO, ozone and NO2 under different driving conditions
Chan, CC; Ozkaynak, H; Spengler, JD; Sheldon, L
1,991
The in-vehicle concentrations of 24 gasoline-related volatile organic compounds (VOCs) and three criteria air pollutants, ozone, carbon monoxide, and nitrogen dioxide, were measured in the summer of 1988, in Raleigh, NC. Two four-door sedans of different ages were used to evaluate in-vehicle concentrations of these com...
0
42,926
Quantitative characterization of urban sources of organic aerosol by high-resolution gas chromatography
Hildemann, LM; Mazurek, MA; Cass, GR; Simoneit, BRT
1,991
null
0
39,722
Diurnal curves of troposheric ozone in the western United States
Bohm, M; Mccune, B; Vandetta, T
1,991
Diurnal curves of tropospheric ozone are characterized for the areas near coniferous forests in the western U.S. A given day of hourly data can be placed into one of 17 classes of diurnal curves simply by knowing the 24-h mean and coefficient of variation or range, or more precisely, by applying equations derived from ...
0
43,717
The ecology of mycorrhizae
Allen, MF
1,991
FIRST PARAGRAPH. In the early 1880s, Professor A. B. Frank, a distinguished forest pathologist of the Landwirtschaftlichen Hochschule in Berlin, was commissioned by the Minister Fur Landwirtschaft, Domanen und Forsten, to undertake a systematic study to promote the production of truffles in Prussia. Although Frank did...
0
43,238
Variations in responses of dry bean (Phaseolus vulgaris) cultivars to ozone
Temple, PJ
1,991
null
0
28,114
Emission of organic substances from indoor surface materials
Tucker, WG
1,991
A wide variety of surface materials in buildings can release organic compounds. Examples include building materials, furnishings, maintenance materials, clothing, and paper products. These sources contribute substantially to the hundreds of organic compounds that have been measured in indoor air. Their emissions have b...
0
42,424
Structure of airway smooth muscle
Daniel, EE; Berezin, I; O'Byrne, PM
1,991
null
0
28,260
Indoor-outdoor ozone measurements: 1988-1991
Weschler, CJ; Shields, HC; Naik, DV
1,991
null
0
43,984
A branch exposure chamber for fumigating ponderosa pine to atmospheric pollution
Houpis, JLJ; Costella, MP; Cowles, S
1,991
null
0
43,679
The value of biodiversity
Randall, A
1,991
null
0
16,831
Ozone and the clean troposphere: ecological implications
Legge, AH; Nosal, M; Mcvehil, GE; Krupa, SV
1,991
Alberta Government-Industry Acidic Deposition Research Program.
0
41,795
New root growth of Douglas-fir seedlings at low carbon dioxide concentration
Van den Driessche, R
1,991
New root growth of conifer nursery seedlings is dependent on light, but whether this is necessary only for photosynthesis, or also has some other root growth promoting effect is unknown. This question was investigated using one-year-old Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) seedlings grown at two nurseries...
0
42,538
Sensitivity of three leguminous crops to O3 as influenced by different stages of growth and development
Kasana, MS
1,991
The sensitivity of Cicer arietinum, Vigna mungo and Trigonella foenumgraecum to O3 has been assessed at different stages of growth and development. Plants of different ages (0, 1, 2, 4 and 6 weeks old) were fumigated with 0 and 120 nl litre-1 O3, from 09.30 h to 16.30 h each day for four weeks, in hemispherical chambe...
0
38,116
Soil nitrogen and chronic ozone stress influence physiology, growth and nutrient status of Pinus taeda L and Liriodendron tulipifera L seedlings
Tjoelker, MG; Luxmoore, RJ
1,991
The effects of soil nitrogen availability and chronic ozone stress on carbon and nutrient economy were investigated in loblolly pine (Pinus taeda L.) and yellow-poplar (Liriodendron tulip if era L.). One-year-old aeedlings were planted individually in pots in forest soil of low (58 Ag (-1)), medium (96 Ag g(-1)) or hig...
0
17,327
Trace gas concentrations and meteorology in rural Virginia 1 Ozone and carbon monoxide
Poulida, O; Dickerson, RR; Doddridge, BG; Holland, JZ; Wardell, RG; Watkins, JG
1,991
U.S. Environmental Protection Agency; U.S. Department of the Interior.
0
42,975
Secondary formation of organic aerosol in the Los Angeles basin: a descriptive analysis of organic and elemental carbon concentrations
Turpin, BJ; Huntzicker, JJ
1,991
Motor Vehicle Manufacturers Association; California Air Resources Board. #An in situ carbon analyzer measured particulate organic and elemental carbon with 2 h time resolution during the Southern California Air Quality Study in 1987. Organic and elemental carbon concentrations showed strong diurnal variations. Peak con...
0
42,870
Free radicals within the Antarctic vortex: the role of CFCs in Antarctic ozone loss
Anderson, JG; Toohey, DW; Brune, WH
1,991
How strong is the case linking global release of chlorofluorocarbons to episodic disappearance of ozone from the Antarctic stratosphere each austral spring? Three lines of evidence defining a link are (i) observed containment in the vortex of ClO concentrations two orders of magnitude greater than normal levels; (ii) i...
0
13,468
Identification of widespread pollution in the Southern Hemisphere deduced from satellite analyses
Fishman, J; Fakhruzzaman, K; Cros, B; Nganga, D
1,991
National Aeronautics and Space Administration (NASA).
1
43,551
Effects of summer ozone on membrane lipid composition during subsequent frost hardening in Norway spruce [Picea abies (L) Karst]
Wolfenden, J; Wellburn, AR
1,991
Norway spruce trees [Picea abies (L.) Karst] were exposed to ozone during the summers of three consecutive years and the fatty acid composition of the chloroplast membrane lipid, monogalactosyl diglyceride (MGDG) was analysed over the last 14 months. Significant variations in the degree of unsaturation and the percenta...
0
14,855
Ecological genetics and changes in atmospheric chemistry: a commentary on application of knowledge in managed forest systems: commentary to chapter 11(B)
Layton, PA; Lucier, AA
1,991
Introduction. The term "managed forest systems" encompasses many different forest types, management objectives, and silvicultural practices. Closed forests occupy only 2.8 billion hectares of the world and of that number only 1 billion hectares are managed. This includes all closed forest in the Soviet Union, which rep...
0
42,941
Multimedia environmental models: The fugacity approach
Mackay, D
1,991
null
0
37,591
Long-term ionic increases from a central Appalachian forested watershed
Edwards, PJ; Helvey, JD
1,991
The electrical conductivity of stream water draining from an unmanaged and undisturbed control watershed has been increasing rather steadily, about 0.03 mS m-1 yr-1, since 1971. During this period, NO3- and Ca2+ concentrations increased and were shown to mathematically account for the ionic contribution to conductivit...
0
3,486
Ozone-forming potential of a series of oxygenated organic compounds
Japar, SM; Wallington, TJ; Rudy, SJ; Chang, TY
1,991
BIOSIS COPYRIGHT: BIOL ABS. An incremental reactivity approach has been used to assess the relative ozone-forming potentials of various important oxygenated fuels/fuel additives, i.e., tert-butyl alcohol (TBA), dimethyl ether (DME), diethyl ether (DEE), methyl tert-butyl ether (MTBE), and ethyl tert-butyl ether (ETBE...
0
42,617
The respiratory system of nonhuman primates responds more to ambient concentrations of ozone than does that of rats
Plopper, CG; Harkema, JR; Last, JA; Pinkerton, KE; Tyler, WS; St George, JA; Wong, VJ; Nishio, SJ; Weir, AS; Dungworth, DL; Barry, BE; Hyde, DM
1,991
null
0
43,738
Root and soil respiration responses to ozone in Pinus taeda L seedlings
Edwards, NT
1,991
Respiration rates of roots of loblolly pine (Pinus taeda L.) seedlings decreased in response to elevated ozone (O3) concentrations. Estimated annual root respiration rates were 12% less in seedlings exposed to twice-ambient O3 (7 h mean = 70-110 nL 1-1) than in seedlings exposed to sub-ambient O3 (7 h mean = 20-40 nl 1...
0
38,724
Development of a nested-grid urban airshed model and application to southern California
Morris, RE; Myers, TC; Douglas, SG; Yocke, MA; Mirabella, V
1,991
null
0
43,840
Effects of elevated CO2 concentration on the polyamine levels of field-grown soybean at three O3 regimes
Kramer, GF; Lee, EH; Rowland, RA; Mulchi, CL
1,991
null
0
38,719
A regional model study of the ozone budget in the eastern United States
Mckeen, SA; Hsie, EY; Trainer, M; Tallamraju, R; Liu, SC
1,991
In order to better understand the photochemical and meteorological processes controlling regional scale air quality problems such as ozone formation, we have developed a three-dimensional Eulerian model and applied this model to a high-pressure period (July 4 to July 7, 1986) over the eastern United States. Meteorologi...
0
42,426
De invloed van verhoogde ozonconcentraties in de buitenlucht op de longfunctie van sportende kinderen [The effect of increased ozone levels in the outside air on lung function of children doing sports]
De Jongste, JC
1,991
null
0
32,296
Effect of exhaust from alcohol fuel on ozone formation in the atmosphere
Akutsu, Y; Toyoda, F; Tomita, KI; Yoshizawa, F; Tamura, M; Yoshida, T
1,991
Alcohols-aldehydes-NO(x)-air system smog chamber experiments were undertaken and the reaction model was developed based on the experimental results. Ozone formation behaviors of alcohols and aldehydes were investigated with the computer simulation by changing the ratio of reactants. The effect of alcohol fuel on O3 f...
0
88,471
The effect of floral abundance on feeder censuses of hummingbird populations
Inouye, DW; Calder, WA; Waser, NM
1,991
null
0
42,474
Epithelial injury, inflammation, and repair in the hamster lung following intratracheal instillation of enzyme-generated oxidants
Nakashima, JM; Hyde, DM; Giri, SN
1,991
null
0
42,879
Reactions of alkoxy radicals under atmospheric conditions: the relative importance of decomposition versus reaction with O2
Atkinson, R; Carter, WPL
1,991
null
0
42,461
Ambient level ozone effects on subpopulations of thymocytes and spleen T lymphocytes
Li AF-Y; Richters, A
1,991
null
0
51,573
Sulphate and ammonium in mist impair the frost hardening of red spruce seedlings
Cape, JN; Leith, ID; Fowler, D; Murray, MB; Sheppard LJEamus, D; Wilson, RHF
1,991
Two-year-old seedlings of red spruce [Picea rubens Sarg. syn. P. rubra (Du Roi) Link] were grown in open-top chambers supplied with charcoal-filtered air near Edinburgh, Scotland. Between May and November 1988, plants were exposed to mists containing NH4+, SO4 2- and NO3- ions at concentrations of 1.6 mol m -3 and H+ a...
0
43,993
Modeling changes in red spruce carbon balance and allocation in response to interacting ozone and nutrient stresses
Weinstein, DA; Beloin, RM; Yanai, RD
1,991
The simulation model TREGRO was developed to analyze the response of red spruce saplings to multiple stresses, such as drought, nutrient deficiency, and exposure to pollutants. The model provides a method of identifying changes in structural and non-structural carbon resources in the tree that may become measurable onl...
0
94,070
Regional ozone modeling to support the Lake Michigan ozone study [draft]
Guinnup, D; Possiel, N
1,991
null
0
49,132
Do actual intakes ever equal potential intakes
Fisher, CE; Norman, JA
1,991
null
0
92,735
Assessing effects of acid deposition in southwestern China using the MAGIC model
Zhao, DW; Seip, HM
1,991
A simulation model with two soil compartments has been used to investigate the responses of soils to acid deposition in three regions in southwestern China. The model (MAGIC) takes into consideration the important soil processes - anion retention, cation exchange, mineral weathering, Al dissolution and CO2 solubility -...
0
38,733
Multiscale modeling of pollutant transport and chemistry
Odman, MT; Russell, AG
1,991
null
0
42,443
Mechanism underlying ozone-induced in vitro hyperresponsiveness in canine bronchi
Janssen, LJ; O'Byrne, PM; Daniel, EE
1,991
null
0
697,224
Tropospheric ozone in the nineteenth century: The Moncalieri series
Anfossi, D; Sandroni, S; Viarengo, S
1,991
null
0
40,692
Ecological genetics and changes in atmospheric chemistry: the application of knowledge
Karnosky, DF
1,991
Introduction. Ample evidence indicates that plants vary markedly in their responses to air pollutants. Furthermore, it is known that air pollution can exert a selective force on plants at both the sporophytic and gametic levels. The application of knowledge regarding air pollution and ecological genetics focuses strong...
0
48,299
On the ozone minimum over the equatorial Pacific Ocean
Piotrowicz, SR; Bezdek, HF; Harvey, GR; Springer-Young, M; Hanson, KJ
1,991
Since 1977, several ship and aircraft expeditions to the equatorial Pacific have reported extremely low (<=l0 ppbv) or undetectable levels of ozone within the marine boundary layer. Of necessity, field programs from mobile platforms are limited in both their temporal and spatial coverage. However, a 10-year record o...
0
42,462
Health effects of tropospheric ozone
Lippmann, M
1,991
null
0
42,965
Stratospheric ozone depletion
Rowland, FS
1,991
null
0
42,922
Reactions of OH with "alpha"-pinene and "beta"-pinene in air: estimate of global CO production from the atmospheric oxidation of terpenes
Hatakeyama, S; Izumi, K; Fukuyama, T; Akimoto, H; Washida, N
1,991
Reactions of OH with alpha-pinene and beta-pinene were studied for the purpose of obtaining the basic data to estimate the emission rate of CO from the photooxidation of terpenes in the atmosphere. In the presence of NO the main product was pinonaldehyde and 6,6-dimethylbicyclo[3.1.1]heptan-2-one from alpha- and beta-p...
0
37,125
The regional acid deposition model and engineering model
Chang, JS; Middleton, PB; Stockwell, WR; Walcek, CJ; Pleim, JE; Lansford, HH; Madronich, S; Binkowski, FS; Seaman, NL; Stauffer, DR
1,991
null
0
37,664
Maine
Kahl, JS; Norton, SA; Cronan, CS; Fernandez, IJ; Bacon, LC; Haines, TA
1,991
null
0
44,145
Products of the gas-phase reaction of methyl tert-butyl ether with the OH radical in the presence of NOx
Tuazon, EC; Carter, WPL; Aschmann, SM; Atkinson, R
1,991
The products of the reaction of the hydroxyl (OH) radical with methyl tert-butyl ether (MTBE) in NO(x)-air systems were identified and measured by Fourier transform infrared absorption spectroscopy and gas chromatography. The products observed, and their yields, were as follows: t-butyl formate, 76 +/- 7%; formaldehyde...
0
42,456
Granulocytes and airway reactivity
Larsen, GL; Bethel, RA; Irvin, CG; Martin, RJ; Uchida, DA
1,991
null
0
45,409
Spectroscopic and solubility characteristics of oxidized soots
Chughtai, AR; Jassim, JA; Peterson, JH; Stedman, DH; Smith, DM
1,991
Spectroscopic and solubility' studies of reaction products of soot (black carbon) with O(3), NO(2) /N(2)O(4), and SO(2) have revealed a relationship between reactivity and product solubility and structure. A remarkably high solubility of ozonated n-hexane soot has its origin in the formation of anhydride and lactone su...
0
28,430
Catalog of materials as potential sources of indoor air pollution
Stockton, MB; Spaite, PS; McLean, JS; White, JB; Jackson, MD
1,991
null
0
42,084
Issues regarding the ozone air quality standards
Chock, DP
1,991
null
0
43,529
Overproduction of petunia chloroplastic copper/zinc superoxide dismutase does not confer ozone tolerance in transgenic tobacco
Pitcher, LH; Brennan, E; Hurley, A; Dunsmuir, P; Tepperman, JM; Zilinskas, BA
1,991
null
0
43,476
Atmospheric pollution and the sensitivity of stomata on barley leaves to abscisic acid and carbon dioxide
Atkinson, CJ; Wookey, PA; Mansfield, TA
1,991
Spring barley (Hordeum vulgare L. cv. Klaxon) plants were exposed to mixtures of SO2 + NO2 (at concentrations of 24-35 nl l -1 of each gas, depending upon fumigation system), or to charcoal-filtered, or unfiltered ambient air during the period in which the second, and subsequent, leaves were emerging. The ability of in...
0
44,083
The emergence of automated gas chromatographs as air quality network monitors for volatile organic compounds
McClenny, WA; Varns, JL; Daughtridge, JV
1,991
null
0
38,935
Diagnosis of pulmonary infections
Stanley, MW
1,991
null
0
44,147
Atmospheric chemistry of diethyl ether and ethyl tert-butyl ether
Wallington, TJ; Japar, SM
1,991
The use of diethyl ether and ethyl tert-butyl ether (ETBE) in gasoline makes their emission to the atmosphere an important consideration. The mechanisms for the chlorine- and hydroxyl radical-initiated atmospheric oxidation of these compounds were analyzed. Equations depicting atmospheric oxidation and end-products of ...
0
42,059
An air quality data analysis system for interrelating effects, standards, and needed source reductions: Part 11. A lognormal model relating human lung function decrease to O3 exposure
Larsen, RI; Mcdonnell, WF; Horstman, DH; Folinsbee, LJ
1,991
Forced expiratory volume in 1 second (FEV1) was measured in 21 men exercising while exposed to four O3 concentrations (0, 0.08, 0.10, and 0.12 ppm). A lognormal multiple linear regression model was fitted to their mean FEV1 measurements to predict FEV1 percent decrease as a function of O3 concentration and exposure dur...
0
43,388
Ozone-induced alteration of biomass allocation and nitrogen derived from air in the leguminous plant-Rhizobium-VAM system
Shafer, SR; Schoeneberger, MM
1,991
null
0
43,294
Estimating costs of air pollution resistance
Ehleringer, JR
1,991
null
0
38,767
Physiological and environmental regulation of stomatal conductance, photosynthesis and transpiration: a model that includes a laminar boundary layer
Collatz, GJ; Ball, JT; Grivet, C; Berry, JA
1,991
null
0
52,882
Coordinate gene activity in response to agents that induce systemic acquired resistance
Ward, ER; Uknes, SJ; Williams, SC; Dincher, SS; Wiederhold, DL; Alexander, DC; Ahi-Goy, P; Metraux, JP; Ryals, JA
1,991
In a variety of plant species, the development of necrotic lesions in response to pathogen infection leads to induction of generalized disease resistance in uninfected tissues. A well-studied example of this "immunity" reaction is systemic acquired resistance (SAR) in tobacco. SAR is characterized by the development of...
0
52,781
The sequence of changes within the photosynthetic apparatus of wheat following short-term exposure to ozone
Farage, PK; Long, SP; Lechner, EG; Baker, NR
1,991
ABSTRACT The basis of inhibition of photosynthesis by single acute O3 exposures was investigated in vivo using analyses based on leaf gas exchange measurements. The fully expanded second leaves of wheat plants (Triticum aestivum L. cv Avalon) were fumigated with either 200 or 400 nanomoles per mole O3 for between 4 an...
0
78,147
Biomass burning: its history, use, and distribution and its impact on environmental quality and global climate
Andreae, MO
1,991
null
1
42,503
Hydrogen peroxide levels in Los Angeles: a screening-level evaluation
Tsai, W; Cohen, Y; Sakugawa, H; Kaplan, IR
1,991
The major factors affecting the diurnal variation of gaseous hydrogen peroxide were studied using a one-dimensional vertical gas-phase chemistry/transport screening model. The model which included diurnal variations of the inversion layer, surface emissions, dry deposition of air pollutants, and meteorological conditi...
0
43,963
Observations and modeling of the reactive nitrogen photochemistry at a rural site
Trainer, M; Buhr, MP; Curran, CM; Fehsenfeld, FC; Hsie, EY; Liu, SC; Norton, RB; Parrish, DD; Williams, EJ; Gandrud, BW; Ridley, BA; Shetter, JD; Allwine, EJ; Westberg, HH
1,991
Ambient concentrations of key trace gases were measured concurrently at a rural site in the eastern United States during the summer of 1986. The extensive data set allows the evaluation of certain aspects of photochemical oxidant models. A 4-day high-pressure period is chosen for a comparison of the model predictions w...
0
28,242
Polycyclic aromatic hydrocarbons and their derivatives in indoor and outdoor air in an eight-home study
Chuang, JC; Mack, GA; Kuhlman, MR; Wilson, NK
1,991
A pilot field study was performed in Columbus, OH, during the winter of 1986/1987. The objectives were to determine the feasibility of the use of a newly developed quiet sampler in indoor air sampling for particles and semivolatile organic compounds (SVOC) and to measure the concentrations of polycyclic aromatic hydroc...
0
43,240
Growth response of loblolly pine (Pinus taeda L) seedlings to ozone fumigation
Wiselogel, AE; Bailey, JK; Newton, RJ; Fong, F
1,991
Twenty-two week-old Pinus taeda L. (loblolly pine) seedlings of 30 open-pollinated and five full-sib families, representing a wide range in geographic origin, were grown in charcoal-filtered (CF) air or CF-air supplemented with 160 or 320 nl liter-1 ozone for 8 h day-1, 4 days week-1, for 9 weeks. Visible foliar injur...
0
43,782
Effects of single and repeated prolonged low-level ozone exposure in man
Folinsbee, LJ; Horstman, DH; Kehrl, HR; McDonnell, WF; Gerrity, TR; Larson, R; Hazucha, MJ; Abdul-Salaam, S; Faucette, B; Ives, PJ
1,991
null
0
43,725
Influence of ozone air pollution on plant-herbivore interactions Part I: Biochemical changes in ornamental milkweed (Asclepias curassavica L; Asclepiadaceae) induced by ozone
Bolsinger, M; Lier, ME; Lansky, DM; Hughes, PR
1,991
A series of fumigation experiments was conducted with bloodflower (Asclepias curassavica L.) in continuous-flow stirred tank reactors (CSTRs) to elucidate the effects of ozone on foliar concentrations of several primary and secondary plant metabolites relevant to herbivores. Plants 8 weeks of age were subjected to diff...
0
43,812
Photosynthetic and stomatal conductance responses of Norway spruce and beech to ozone, acid mist and frost - a conceptual model
Eamus, D; Murray, M
1,991
Two-year-old beech and Norway spruce seedlings were exposed to a combination of ozone and acid mist treatments in open-top chambers in Scotland during the months of July through to September 1988. Replicate pairs of chambers received charcoal-filtered air (control), ozone-enriched air (140 nl ozone litre(-1)) or 140 nl...
0
42,486
Ozone, fonction ventilatoire et reactivite bronchique [Ozone, ventilatory function and bronchial reactivity]
Rieder, P; Haller, E; van Melle, G; Zellweger, JP
1,991
null
0
39,025
Biological monitoring of ozone effects on indicator plants in the Netherlands: initial research on exposure-response functions
Tonneijck, AEG; Bugter, RJF
1,991
null
0
43,958
Water vapor interference in the measurement of ozone in ambient air by ultraviolet absorption
Meyer, CP; Elsworth, CM; Galbally, IE
1,991
null
0
38,783
Experiments on the control capacity of stomata of Picea abies (L) Karst. after fumigation with ozone and in environmentally damaged material
Maier-Maercker, U; Koch, W
1,991
With the aid of specifically designed potometer experiments, it is shown that, after ozone fumigation, twigs transpiring in gas exchange chambers show poor water balance in decreasing humidity. The quotient of water uptake to water loss never falls below 0.9 in healthy material because of the control capacity of the st...
0
44,123
Leaves as regulators of stress response
Dickson, RE; Isebrands, JG
1,991
null
0