... Precipitation runoff experiments were conducted on copper panels at sites polluted with sulfur dioxide (Washington, DC), an unpolluted site (Albany, OR), and an unpolluted marine site (Newport, OR). Copper patinas had complex surface chemistry representing a sequence of transitional mineral...

... of zinc in the five-nation study is presented. atmospheric corrosion mechanism tropical sulfur dioxide ammonia gaseous absorption particulate moisture films Ivan S. Cole~ Mechanisms of Atmospheric Corrosion in Tropical Environments Reference: Cole, I. S., "Mechanisms of Atmospheric...

... of copper sulfide that formed from a moist hydrogen sulfide environment. Formation of copper sulfide from the oxysulfur environments showed that sulfur could participate as a reducible species in the film-forming corrosion reactions. atmospheric corrosion copper sulfur dioxide hydrogen sulfide XPS...

... Agency (EPA) is involved with several aspects of the overall interagency National Acid Precipitation Assessment Plan, including field monitoring and quality assurance. One of the major precursors of acid deposition is the gas sulfur dioxide (SO 2 ). The purpose of the project described in this paper...

... were also developed to provide insight into the effects of atmospheric acidity on materials in the early stage of field exposure. Using these facilities, exposure studies of galvanized steel panels have shown that the deposition of sulfur dioxide (SO 2 ) is controlled by the gas phase resistance...

... for conducting an assessment of acid deposition to galvanized steel structures. galvanized steel damage function model sulfur dioxide rain acidity nitric acid carbon dioxide particles John. W. Spence I and Fred H. Haynid Derivation of a Damage Function for Galvanized Steel Structures: Corrosion...

... environments are properly described. zinc corrosion acid rain sulfur dioxide deposition velocity corrosion products Fred H. Haynie, t John W. Spence, 1 Fred W. Lipfert, 2 Stephen D. Cramer, 3 and L. Garner McDonald 3 Evaluation of an Atmospheric Damage Function for Galvanized Steel REFERENCE...

.... The model was based on the fluxes of precipitation volume, wet-deposited hydrogen ion, and dry-deposited sulfur dioxide that are available from regional environmental monitoring activities. The parameter values obtained from this model agreed with values obtained by direct measurement, indicating...

... different soil regimes. Plant growth and symptom data were collected during the growing seasons of 1983–1987. Air pollutant and weather data were obtained from local and national agencies. No symptoms of sulfur dioxide injury were confirmed, but symptoms of ozone injury were observed in all five years...

... Before 1980, essentially no health-related effects had been observed for short-term (<1 h) exposures to sulfur dioxide (SO 2 ) levels similar to those found in the ambient environment (≤1 ppm). In 1980 and 1981, the results from several studies indicated that asthmatics' airways were...

... dioxide (NO 2 ), paniculate matter (PM), sulfur dioxide (SO 2 ), ozone (O 3 ), and lead (Pb). In each case, the NAAQSs have been selected to provide protection against either known or hypothetical responses among one or more susceptible subpopulations, such as angina in cardiovascular patients exposed...

... Since much of the sulfur dioxide (SO 2 ) that is produced from fossil fuel combustion is oxidized to sulfuric acid, (H 2 SO 4 ), there is concern about the effects of inhaled H 2 SO 4 on human health. Adolescent asthmatic subjects, unlike healthy or even adult asthmatic subjects, have shown...

... for establishing scientifically defensible National Ambient Air Quality Standards. ozone sulfur dioxide susceptible subpopulations hyper-responsive exposuredose dose-response populations National Ambient Air Quality Standards disease mechanisms Roger O. McClellan I Reflections on the Symposium...

... by the Cl − and SO 4 2 − ions cannot be described by a simple relation. Further components of the reaction system participate in the control of the corrosion kinetics. corrosion accelerated corrosion tests steels zinc sulfur dioxide sulfates chlorides marine industrial...

..., and is versatile in its application. permeation gas diffusion calibration solubility dynamic dilution gas analysis sulfur dioxide sampling air quality atmospheric measurements Gerald D. Mitchell^ Trace Gas Calibration Systems Using Permeation Devices REFERENCE: Mitchell, G. D., "IVace Gas...

... of corrosion film chemistry, and of precipitation runoff chemistry. The results suggest the long-term zinc corrosion film consists of a stable inner layer sensitive to atmospheric sulfur dioxide (SO 2 ) concentrations and a nonprotective outer layer. A synergistic reaction involving SO 2 and nitrogen dioxide...

... vapor and sulfur dioxide porosity tests, respectively. It will also be shown how results and insights from these programs are incorporated into ASTM test specifications. coatings platings electroplated coatings porosity pores corrosion tests sulfur dioxide nitric acid Simeon J. Krumbein...

... repeated ambient exposure or laboratory exposure, or both, is also considered. air pollution ozone sulfur dioxide temperature humidity age gender circadian rhythm adaptation air pollution health effects inhalation toxicology Lawrence J. Folinsbee, Ph.D} Influence of Various Nondisease...

... sulfur dioxide symptoms inhalation toxicology Jack D. Hackney, M.D} and William S. Linn, M.A.^ Collection and Analysis of Symptom Data in Clinical Air Pollution Studies REFERENCE: Hackney, J. D. and Linn, W. S., "Collection and Analysis of Symptom Data in Clinical Air Pollution Studies, "Inhalation...

... Atmospheric Corrosion Monitors (ACM's) were evaluated with data from the Regional Air Monitoring System (RAMS). Relative humidity, temperature, wind speed, and levels of total sulfur gases such as sulfur dioxide and oxides of nitrogen were found to be statistically significant variables. Problems...