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2,515
Deposition of atmospheric pollutants on forests
Fowler, D; Cape, JN; Unsworth, MH
1,989
Forests have long been considered as efficient sinks for atmospheric pollutants. The potential for large rates of deposition is provided by the turbulent structure of air above and within forest canopies. Large rates of deposition of pollutant gases, however, are only found for the very reactive gases HNO3, HCl and NH3...
0
72,129
Response of eastern hardwood species to ozone, sulfur dioxide and acid precipitation
Jensen, KF; Dochinger, LS
1,989
Seedlings of ten hardwood species were treated with 18 fumigation and acid rain treatments: 0, 0.07, and 0.15 ppm ozone; 0.0 and 0.02 ppm SO sub(2); and acid rain treatments will pH's of 3, 3.5, and 4.2. The fumigation treatments were applied in CSTR fumigation chambers in a greenhouse. The seedlings received three day...
0
43,069
NAPAP assessment process compendium Volume 5: Models planned for use in the NAPAP integrated assessment program
null
1,989
The purpose of the report was to provide basic information about the models planned for use in the NAPAP Integrated Assessment. The report covers 40 models. General descriptions of each model are provided along with information on past use, code documentation, and the status of the model's performance evaluation. The r...
0
59,465
Effects of depletion of ascorbic acid or nonprotein sulfhydryls on the acute inhalation toxicity of nitrogen dioxide, ozone, and phosgene
Slade, R; Highfill, JW; Hatch, GE
1,989
The effect of depleting lung ascorbic acid (AHJ and nonprotein sulfhydryls (NPSH) on the acute inhalation toxicity of nitrogen dioxide (NOJ, ozone (OJ, and phosgene (COCld was investigated in guinea pigs. The increase in bronchoalveolar lavage (BALJ fluid protein (an indicator of alveolar-capillary damage leading to in...
1
38,806
Atmospheric pollutants and plant metabolism
Lange, OL; Heber, U; Schulze, ED; Ziegler, H
1,989
null
0
36,409
Measurements of NOx over the eastern Pacific ocean and southwestern United States during the spring 1984 NASA GTE aircraft program
Ridley, BA; Carroll, MA; Dunlap, DD; Trainer, M; Sachse, GW; Gregory, GL; Condon, EP
1,989
null
0
89,393
Collection efficiencies of a tandem sampling system for atmospheric aerosol particles and gaseous ammonia and sulfur dioxide
Quinn, PK; Bates, TS
1,989
#The collection efficiencies of aerosol particles and gaseous NH3 and SO2 were tested for a tandem sampling system consisting of a cyclone separator followed by a 1.0 pm pore size 47-mm Millipore Teflon particle filter and four 47-mm Whatman 41 filters coated with oxalic acid and either K2C03 or LiOH. The collection ef...
0
41,846
Health effects of tropospheric ozone: major effects and related scientific questions
Tilton, BE
1,989
null
0
12,518
On the disproportionate role of tropospheric ozone as a filter against solar UV-B radiation
Bruhl, C; Crutzen, PJ
1,989
Umweltbundesamt (Environmental Agency) in Berlin. #Increases in tropospheric ozone due to photochemical production, mostly due to growing industrial and technological NO(alpha)-emissions, in the industrialized northern hemisphere can overcompensate for increased UV-B radiation resulting from ozone depletions due to ...
0
41,294
Experimental ozone dosimetry in humans
Gerrity, TR; McDonnell, WF; O'Neill, JJ
1,989
null
0
43,987
Development and testing of open-top chambers for exposing large, perennial plants to air pollutants
Mandl, RH; Laurence, JA; Kohut, RJ
1,989
null
1
42,212
Fast-responding chemiluminescent ozone analyzer for respiratory applications
Ben-Jebria, A; Ultman, JS
1,989
null
0
674,939
Analysis of the National Toxicology Program data on in vitro genetic toxicity tests using multivariate statistical methods
Benigni, R
1,989
A series of multivariate statistical methods have been used to explore the results of a set of four in vitro short-term tests (STT) on 73 chemicals reported by the US National Toxicology Program (NTP). Cluster analysis showed that the mouse lymphoma mutation (MLY) and sister-chromatid exchange (SCE) were similar in per...
0
45,591
Cloud chemistry research at Whiteface Mountain
Mohnen, VA; Kadlecek, JA
1,989
Cloud collection principles are briefly reviewed; the performance of two collectors in common use is compared. Two cloud event studies (one during winter, the other during summer) are presented to contrast typical time-dependent histories of chemical concentrations for the two seasons. During winter, the oxidation rate...
0
42,096
Pulmonary function and 99mTc-DTPA clearance after 66-hour exposure to 008 ppm ozone with moderate exercise
Kehrl, H; McDonnell, W; Folinsbee, L; Gerrity, T; Kowalsky, R; McCartney, W; Horstman, D
1,989
null
0
42,261
Circulating factors that modify lung cell DNA synthesis following exposure to inhaled oxidants. I. Effect of serum and lavage on lung fibroblasts following exposure of adult rats to 1 ppm ozone
Tanswell, AK; Fraher, LJ; Grose, EC
1,989
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, from animals exposed to ozone for 7 or 14 d, significantly increased DNA synthesis by lung fibroblas...
0
42,594
Integrated criteria document ozone
Slooff, W; van Aalst, RM; Heijna-Merkus, E; Thomas R eds
1,989
null
0
42,012
Impairment of humoral immune responses in mice exposed to nitrogen dioxide and ozone mixtures
Fujimaki, H
1,989
The relationship between immune defense mechanisms and environmental pollutants remains unknown because of uncertainty about the effects of combined or mixed pollutants. To investigate whether exposure to toxic gas mixtures change the effect of a single gas exposure on immune function, BALB/c mice were continuously exp...
0
42,400
Continuous chronic exposure to ozone: biochemical, functional and histopathologic effects in rat lung
Wright, E; Gross, K; Smiler, K
1,989
null
0
41,994
Applications of a method for setting air quality standards based on epidemiological data
Abbey, DE; Euler, GL; Moore, JK; Petersen, F; Hodgkin, JE; Magie, AR
1,989
A method for setting air quality standards for long-term cumulative exposures of a population based on epidemiological studies has been developed. It uses exposure estimates interpolated from monitoring stations to zip code centroids, each month applied to zip code by month residence histories of the population. Two al...
0
13,371
Commuter's exposure to volatile organic compounds, ozone, carbon monoxide, and nitrogen dioxide
Chan, CC; Ozkaynak, H; Spengler, JD; Sheldon, L; Nelson, W; Wallace, L
1,989
null
0
46,687
Parameterization of surface resistances to gaseous dry deposition in regional-scale numerical models
Wesely, ML
1,989
Methods for estimating the dry deposition velocities of atmospheric gases in the U.S. and surrounding areas have been improved and incorporated into a revised computer code module for use in numerical models of atmospheric transport and deposition of pollutants over regional scales. The key improvement is the computati...
0
2,845
2,4-Dinitrophenylhydrazine-coated silica gel cartridge method for determination of formaldehyde in air: Identification of an ozone interference
Arnts, RR; Tejada, SB
1,989
null
0
43,013
Sorption of ozone by `New Yorker' tomato leaves
Graham, S; Ormrod, DP
1,989
null
0
43,051
Numerical simulation of mesoscale airflow in the South Central Coast Air Basin
Kessler, RC; Douglas, SG
1,989
null
0
42,062
An activity pattern survey of asthmatics
Lichtenstein, C; Roth, HD; Walker, P; Wyzga, RE
1,989
null
0
41,750
Effects of ozone on respiratory function and structure
Lippmann, M
1,989
null
0
41,728
The impact of a 12-month exposure to a diurnal pattern of ozone on pulmonary function, antioxidant biochemistry and immunology
Grose, EC; Stevens, MA; Hatch, GE; Jaskot, RH; Selgrade, MJK; Stead, AG; Costa, DL; Graham, JA
1,989
null
0
78,425
Ozone destruction through heterogeneous chemistry following the eruption of El Chichon
Hofmann, DJ; Solomon, S
1,989
null
0
42,101
Bronchial epithelial cells produce lung fibroblast chemotactic factor: fibronectin
Shoji, S; Rickard, KA; Ertl, RF; Robbins, RA; Linder, J; Rennard, SI
1,989
null
0
26,059
The epidemiology of building-related complaints and illness
Kreiss, K
1,989
The recent epidemiology of major building-related complaints and illness is summarized. The variety of symptoms that have been attributed to building environments in sick building syndrome and in building-related illness are described, including their likely pathophysiology and their implications for remedial action an...
0
42,257
Duration of enhanced responsiveness upon re-exposure to ozone
Schonfeld, BR; Adams, WC; Schelegle, ES
1,989
It has been repeatedly observed that ozone (O3) re-exposure within 24 h elicits enhanced pulmonary function responses. However, there are only limited observations concerning re-exposure to O3 at intervals between 24 h and several days. The present study was designed to assess the effects of re-exposure to 0.35 ppm O3 ...
0
19,396
A comparison of three photochemical oxidant mechanisms
Dodge, MC
1,989
null
0
42,170
Acute ozone exposure increases plasma prostaglandin F2alpha in ozone-sensitive human subjects
Schelegle, ES; Adams, WC; Giri, SN; Siefkin, AD
1,989
Twenty O3-sensitive and 2O O3-nonsensitive subjects participated in a study to investigate the effects of disparate O3 sensitivity on plasma prostaglandin F2 alpha) responses consequent to exposure to ambient O3 concentrations. Subjects were selected from a pool of 75 normal healthy college-aged males who had been prev...
0
42,202
Estimating the risks of smoking, air pollution, and passive smoke on acute respiratory conditions
Ostro, BD
1,989
null
0
35,886
Nitrogen dioxide exposure in vivo and human alveolar macrophage inactivation of influenza virus in vitro
Frampton, MW; Smeglin, AM; Roberts, NJ, Jr; Finkelstein, JN; Morrow, PE; Utell, MJ
1,989
Epidemiologic studies have reported an increased incidence of respiratory infections and illness in association with elevated indoor levels of nitrogen dioxide (NO2). Animal exposure studies have found that brief exposures to peak levels of NO2 produce greater morbidity than continuous lower level exposure. In order to...
0
26,924
Indoor air and infectious disease
Burge, HA
1,989
The author briefly reviews key elements of airborne infectious disease and factors affecting infection. Diseases linked to air quality are then covered as well as the establishment of cause and effect between indoor air quality parameters and disease.
0
26,928
Cost avoidance and productivity in owning and operating buildings
Woods, JE
1,989
The objectives of this chapter are to explore the economic impact of unacceptable environmental control in buildings and to propose some initial steps that might be taken to improve health and productivity through cost effective control of the indoor environment. To address these objectives, the existing stock of build...
0
35,890
Responses of susceptible subpopulations to nitrogen dioxide
Morrow, PE; Utell, MJ
1,989
This project was undertaken to investigate symptom responses and changes in the pulmonary function of two susceptible groups--people with asthma and people with chronic obstructive pulmonary disease (COPD)--when exposed to 0.3 parts per million (ppm) (560 micrograms/m3) nitrogen dioxide. In these controlled clinical st...
0
79,910
Isolation of a complementary DNA encoding a chitinase with structural homology to a bifunctional lysozyme/chitinase
Metraux, JP; Burkhart, W; Moyer, M; Dincher, S; Middlesteadt, W; Williams, S; Payne, G; Carnes, M; Ryals, J
1,989
An extracellular, acidic chitinase was purified to homogeneity from tobacco necrosis virus-infected leaves of Cucumis sativis. The amino acid sequences of the intact protein and of peptides isolated following endoproteinase Lys-C digestion, cyanogen bromide cleavage, and trypsin digestion were determined. Oligonucleoti...
0
34,729
Age-related difference in bioenergetics of lung and heart mitochondria from rats exposed to ozone
Zychlinski, L; Raska-Emery, P; Balis, JU; Montgomery, MR
1,989
Bioenergetics of isolated lung and heart mitochondria from adult and aged rats were examined in the presence of glutamate (NAD-linked substrate) or succinate + rotenone (FAD-linked substrate) following ozone exposure (3.0 ppm, 8 hr). In controls, several differences were observed between adults and aged in both organ p...
0
44,025
Ozone trend analysis for selected urban areas in the continental US
Jones, K; Militana, L; Martini, J
1,989
null
0
41,660
Effects of inhalable particles on respiratory health of children
Dockery, DW; Speizer, FE; Stram, DO; Ware, JH; Spengler, JD; Ferris, BG, Jr
1,989
Results are presented from a second cross-sectional assessment of the association of air pollution with chronic respiratory health of children participating in the Six Cities Study of Air Pollution and Health. Air pollution measurements collected at quality-controlled monitoring stations included total suspended partic...
0
33,958
Nonmethane organic compound to nitrogen oxide ratios and organic composition in cities and rural areas
Altshuller, AP
1,989
null
0
43,602
Oxidant air pollution effects on plants of Joshua Tree National Monument
Temple, PJ
1,989
null
0
88,467
Environmental control of variation in flowering by two Delphinium species in montane Colorado
Inouye, DW
1,989
null
0
90,045
Review, discussion, and summary of epidemiological studies
Shy, CM
1,989
#This paper reviews and summarizes the epidemiological studies presented at the Symposium on the Health Effects of Acid Aerosols. Two studies of acute episodes examined different indicators of respiratory morbidity before, during, and after the January 1985 air pollution event in western Europe. In the U.K. no increase...
0
77,553
Effects of ambient air pollution on the lung and immune system
Sherwin, RP
1,989
null
0
43,983
Ozone flux to Picea sitchensis (Bong) Carr and Picea abies (L) Karst during short episodes and the effects of these on transpiration and photosynthesis
Freer-Smith, PH; Dobson, MC
1,989
null
0
42,260
Effects of nitrogen dioxide and ozone in combination on xenobiotic metabolizing activities of rat lungs
Takahashi, Y; Miura, T
1,989
Male Jcl:Wistar rats were exposed continuously to 0.2 ppm ozone (O3) and 4 ppm nitrogen dioxide (NO2), alone and in combination, for 1 and 2 months to examine the effects of combined gas on the xenobiotic metabolizing systems of lung microsomes. The cytochrome P-450 content increased to 200% and 253% of the control val...
0
41,736
Critical issues in intra- and interspecies dosimetry of ozone
Miller, FJ; Overton, JH
1,989
null
0
43,482
The chemistry of ozone deposition to plant leaves: role of ascorbic acid
Chameides, WL
1,989
null
0
41,987
Metabolic enhancement and increase of alveolar macrophages induced by ozone
Mochitate, K; Miura, T
1,989
Male Wistar rats were exposed to 0.2 ppm ozone (O3) for 14 days and at intervals alveolar macrophages were collected by bronchoalveolar lavage to examine the effects of O3. The specific activities of glucose-6-phosphate dehydrogenase and glutathione peroxidase of alveolar macrophages increased to 1.6-fold (on the 3rd d...
0
78,362
Procedures for estimating and applying rule effectiveness in post-1987 base year emission inventories for ozone and carbon monoxide state implementation plans
null
1,989
null
0
43,964
Modification of a high-efficiency passive sampler to determine nitrogen dioxide or formaldehyde in air
Mulik, JD; Lewis, RG; Mcclenny, WA
1,989
null
0
42,892
Computer modeling study of incremental hydrocarbon reactivity
Carter, WPL; Atkinson, R
1,989
null
0
42,029
Health effects of acid aerosols formed by atmospheric mixtures
Kleinman, MT; Phalen, RF; Mautz, WJ; Mannix, RC; Mcclure, TR; Crocker, TT
1,989
Under ambient conditions, sulfur and nitrogen oxides can react with photochemical products and airborne particles to form acidic vapors and aerosols. Inhalation toxicological studies were conducted, exposing laboratory animals, at rest and during exercise, to multicomponent atmospheric mixtures under conditions favorab...
0
42,497
Cockpit-environmental factors during long-range flights
Simons, M
1,989
null
0
42,031
Effects of inhaled acids on lung biochemistry
Last, JA
1,989
Effects of respirable aerosols of sulfuric acid, ammonium sulfate, sodium sulfite, and ammonium persulfate on lungs of rats are reviewed. The literature regarding interactions between ozone or nitrogen dioxide and acidic aerosols (ammonium sulfate, sulfuric acid) is discussed. An unexpected interaction between nitrogen...
0
43,735
Photochemical oxidant injury to ponderosa pine (Pinus ponderosa Laws) and Jeffrey pine (Pinus jeffreyi Grev and Balf) in the national parks of the Sierra Nevada of California
Duriscoe, DM; Stolte, KW
1,989
null
0
41,989
Respiratory health effects associated with ambient sulfates and ozone in two rural Canadian communities
Stern, B; Jones, L; Raizenne, M; Burnett, R; Meranger, JC; Franklin, CA
1,989
#A cross-sectional epidemiological study investigating the respiratory health of children in two Canadian communities was conducted in 1983-1984 in Tillsonburg, Ontario, located in a region of moderately elevated concentrations of transported air pollutants, and in Portage la Prairie, Manitoba, situated in a low pollut...
0
38,120
Litter decomposition across an air-pollution gradient in the San Bernardino Mountains
Fenn, ME; Dunn, PH
1,989
Air pollution may affect forest ecosystems by altering nutrient cycling rates. The objective of this study was to compare decomposition rates of L-layer litter of ponderosa pine (Pinus ponderosa Laws.) and Jeffrey pine (Pinus jeffreyi Grev. & Balf.) collected from across an air-pollution gradient in the San Bernardino ...
0
41,909
Mechanism of action of ozone on the human lung
Hazucha, MJ; Bates, DV; Bromberg, PA
1,989
Fourteen healthy normal volunteers were randomly exposed to air and 0.5 ppm of ozone (O3) in a controlled exposure chamber for a 2-h period during which 15 min of treadmill exercise sufficient to produce a ventilation of approximately 40 l/min was alternated with 15-min rest periods. Before testing an esophageal balloo...
1
42,020
Response of rat alveolar macrophages to ozone: quantitative assessment of population size, morphology, and proliferation following acute exposure
Hotchkiss, JA; Harkema, JR; Kirkpatrick, DT; Henderson, RF
1,989
The purpose of this study was to evaluate the in vivo effects of an acute exposure to low levels of ozone on rat pulmonary alveolar macrophages (PAM). Fisher 344 rats exposed to 0, 0.12, 0.8, or 1.5 ppm O3 for 6 h were killed immediately after and 3, 18, 42, or 66 h after ozone exposure and their lungs were lavaged. Co...
0
43,028
Storm and cloud dynamics
Cotton, WR; Anthes, RA
1,989
null
0
37,743
Workshop: Development of questionnaires and survey instruments
Lebowitz, MD; Quackenboss, JJ; Soczek, ML; Colome, SD; Lioy, PJ
1,989
Field studies, surveys, and building investigations are often performed to measure or predict the magnitude of several possible indoor air pollutant exposures and, frequently, to assess potential adverse results of such exposures in populations. This paper focuses on the procedures for indoor air quality data acquisiti...
0
42,217
Ambroxol inhibits airway hyperresponsiveness induced by ozone in dogs
Chitano, P; Di Stefano, A; Finotto, S; Zavattini, G; Maestrelli, P; Mapp, C; Fabbri, LM; Allegra, L
1,989
BIOSIS COPYRIGHT: BIOL ABS. RRM DOG EXPECTORANT-DRUG ACETYLCHOLINE ARACHIDONIC ACID INFLAMMATION NEUTROPHILS
0
43,039
A photochemical kinetics mechanism for urban and regional scale computer modeling
Gery, MW; Whitten, GZ; Killus, JP; Dodge, MC
1,989
A new chemical kinetics mechanism for simulating urban and regional photochemistry has been developed and evaluated. The mechanism, called the carbon bond mechansim IV (CBM-IV), was derived by condensing a detailed mechanism that included the most recent kinetic, mechanistic, and photolytic information. The CBM-IV cont...
0
42,053
Mechanical properties of rabbit lung with edema caused by exposure to ozone
Yokoyama, E; Goto, H; Kawai, K; Kyono, H
1,989
null
0
42,931
Chemistry of a polluted cloudy boundary layer
Jacob, DJ; Gottlieb, EW; Prather, MJ
1,989
null
0
41,654
The Ontario Air Pollution study: identification of the causative agent
Bates, DV; Sizto, R
1,989
Previously published data from the Ontario Air Pollution study are reviewed. It has been shown that there is a consistent association in summer between hospital admissions for respiratory disease in Southern Ontario, and daily levels of SO4, O3, and temperature. No association exists for a group nonrespiratory conditio...
0
46,140
Commercial building ventilation rates and particle concentrations
Turk, BH; Grimsrud, DT; Brown, JT; Geisling-Sobotka, KL; Harrison, J; Prill, RJ
1,989
Bonneville Power Administration; U.S. Department of Energy.
0
91,566
Valuing the effect of acidification damages on the Adirondack Fishery: Comment
Shaw, WD
1,989
null
0
42,207
Oral and oronasal breathing during continuous exercise produce similar responses to ozone inhalation
Adams, WC; Schelegle, ES; Shaffrath, JD
1,989
Breathing route has a profound effect on sulfur dioxide-induced pulmonary function response in human subjects. There is comparatively little evidence of the effects of oral, nasal, and oronasal breathing on ozone (O3)-induced responses in humans. In this study, six young adult males were exposed on five occasions to 0....
0
43,398
State of scientific discussion about the causes of the novel forest decline in the Federal Republic of Germany and surrounding countries
Prinz, B; Krause, GHM
1,989
null
0
41,700
Acute lung function responses to ambient acid aerosol exposures in children
Raizenne, ME; Burnett, RT; Stern, B; Franklin, CA; Spengler, JD
1,989
We examined the relationship between lung function changes and ambient acid aerosol episodes in children attending a residential summer camp. Young females (112) performed daily spirometry, and 96 were assessed on one occasion for airway hyperresponsiveness using a methacholine bronchoprovocation test. Air quality meas...
1
42,949
Sensitivity analysis of a chemical mechanism for aqueous-phase atmospheric chemistry
Pandis, SN; Seinfeld, JH
1,989
null
0
39,058
Design and performance of a large, field exposure chamber to measure effects of air quality on plants
Heagle, AS; Philbeck, RB; Ferrell, RE; Heck, WW
1,989
null
0
42,072
In vitro ozone exposure inhibits mitogen-induced lymphocyte proliferation and IL-2 production
Becker, S; Jordan, RL; Orlando, GS; Koren, HS
1,989
Human blood mononuclear cells were exposed to ozone in vitro and thereafter analyzed for competence in mitogen-induced proliferation as well as IL-1 and IL-2 production. Proliferative responses induced by phytohemagglutinin (PHA), concanavalin A (Con A), and pokeweed mitogen (PWM) were all depressed in lymphocytes expo...
0
3,788
Ozone in rural areas of the United States
Logan, JA
1,989
null
0
25,245
Acid haze air pollution and breast and colon cancer mortality in 20 Canadian cities
Gorham, ED; Garland, CF; Garland, FC
1,989
Sulfur dioxide absorbs ultraviolet light in the region of the spectrum which is most active informing vitamin D on the skin. Sulfate particles reflect light at this wavelength. High concentrations of these pollutants (acid haze) may lead to vitamin D deficiencies in exposed populations. Epidemiologic and laboratory evi...
0
41,938
Heavy duty diesel emissions control: implications for fuel consumption
Freeman, HD
1,989
null
0
43,207
Sensitivity of western conifers to SO2 and seasonal interaction of acid fog and ozone
Hogsett, WE; Tingey, DT; Hendricks, C; Rossi, D
1,989
null
0
42,659
Effects of long-term ozone exposure and soil moisture deficit on growth of a ladino clover-tall fescue pasture
Heagle, AS; Rebbeck, J; Shafer, SR; Blum, U; Heck, WW
1,989
Most field studies relating seasonal ozone (O3) exposure to crop yield have been performed in the absence of plant moisture stress. Loss estimates from such studies may be too large if moisture stress, which occurs during most growing seasons, decreases plant sensitivity to O3. Thus, we examined the response of a mixtu...
0
41,817
Ozone-induced changes in pulmonary function and bronchial responsiveness in asthmatics
Kreit, JW; Gross, KB; Moore, TB; Lorenzen, TJ; D'Arcy, J; Eschenbacher, WL
1,989
To compare the responses of asthmatic A normal subjects to high effective doses of ozone, nine asthmatic and nine normal subjects underwent two randomly signed 2-h exposures to filtered, purified air and 0.4 ppm one with alternating 15-mm periods of rest and exercise on cycle ergometer (minute ventilation = 30 1 . min ...
1
43,521
Response of soluble sugars and starch in field-grown cotton to ozone, water stress, and their combination
Miller, JE; Patterson, RP; Pursley, WA; Heagle, AS; Heck, WW
1,989
null
0
43,745
Photosynthetic response of giant sequoia seedlings and rooted branchlets of mature foliage to ozone fumigation
Grulke, NE; Miller, PR; Wilborn, RD; Hahn, S
1,989
null
0
42,051
Effects of short- and long-term exposure to ozone on heart rate and blood pressure of emphysematous rats
Uchiyama, I; Yokoyama, E
1,989
Electrocardiogram and arterial blood pressure of elastase-treated emphysematous rats (E rats) and saline-treated control rats (S rats) were recorded continuously during exposure to either 1 ppm ozone (O3) for 3 hr or 0.5 ppm O3 for 6 hr. The heart rates (HRs) of both groups decreased to about 50 and 65% of the initial ...
1
73,057
Studies of acid aerosols in six cities and in a new multi-city investigation: design issues
Speizer, FE
1,989
Techniques for measuring acid aerosols in the ambient environment have been developed only recently. As part of the on-going Harvard Study on the Health Effects of Sulfur Dioxide and Respirable Particulates, we have developed monitoring equipment for acidic particles that can be used in multiple field settings. Prelimi...
0
73,039
Exposures to acidic aerosols
Spengler, JD; Keeler, GJ; Koutrakis, P; Ryan, PB; Raizenne, M; Franklin, CA
1,989
Ambient monitoring of acid aerosols in four U.S. cities and in a rural region of southern Ontario clearly show distinct periods of strong acidity. Measurements made in Kingston, TN, and Steubenville, OH, resulted in 24-hr H+ ion concentrations exceeding 100 nmole/m3 more than 10 times during summer months. Periods of e...
0
41,384
Anatomical modeling of microdosimetry of inhaled particles and gases in the lung
Mercer, RR; Crapo, JD
1,989
null
0
43,282
Natural selection for ozone tolerance in Populus tremuloides: field verification
Berrang, P; Karnosky, DF; Bennett, JP
1,989
null
0
43,113
Airflow and air quality simulations over the western mountainous region with a four-dimensional data assimilation technique
Yamada, T; Kao, CJ; Bunker, S
1,989
null
0
41,840
Incorporation and disappearance of oxygen-18 in lung tissue from mice allowed to breathe 1 ppm 18O31
Santrock, J; Hatch, GE; Slade, R; Hayes, JM
1,989
null
0
43,270
Chronic ozone stress effects on yield and grain quality of soft red winter wheat
Slaughter, LH; Mulchi, CL; Lee, EH; Tuthill, K
1,989
null
0
42,473
Airliner cabin environment: Contaminant measurements, health risks, and mitigation options
Nagda, NL; Fortmann, RC; Koontz, MD; Baker, SR; Ginevan, ME
1,989
null
0
41,898
Ozone-induced inflammation in the lower airways of human subjects
Koren, HS; Devlin, RB; Graham, DE; Mann, R; Mcgee, MP; Horstman, DH; Kozumbo, WJ; Becker, S; House, DE; Mcdonnell, WF; Bromberg, PA
1,989
Although ozone (O3) has been shown to induce inflammation in the lungs of animals, very little is known about its inflammatory effects on humans. In this study, 11 healthy nonsmoking men, 18 to 35 yr of age (mean, 25.4 +/- 3.5), were exposed once to 0.4 ppm O3 and once to filtered air for 2 h with intermittent exercise...
1
42,572
Plant stress from air pollution
Treshow, M; Anderson, FK
1,989
null
0
36,904
Frost hardiness of Picea rubens growing in spruce decline regions of the Appalachians
Sheppard, LJ; Smith, RI; Cannell, MGR
1,989
null
0
826
Ozone depletion: Health and environmental consequences
null
1,989
null
0