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Atmospheric Environment (1967)最新文献

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The use of stable lead 206207 isotope ratios and elemental composition to discriminate the origins of lead in aerosols at a rural site in eastern Canada 使用稳定的铅206207同位素比率和元素组成来区分加拿大东部农村地区气溶胶中铅的来源
Atmospheric Environment (1967) Pub Date : 1989-01-01 DOI: 10.1016/0004-6981(89)90049-8
W.T Sturges , Barrie L.A
{"title":"The use of stable lead 206207 isotope ratios and elemental composition to discriminate the origins of lead in aerosols at a rural site in eastern Canada","authors":"W.T Sturges ,&nbsp;Barrie L.A","doi":"10.1016/0004-6981(89)90049-8","DOIUrl":"10.1016/0004-6981(89)90049-8","url":null,"abstract":"<div><p>Observations of lead <span><math><mtext>206</mtext><mtext>207</mtext></math></span> ratios and trace element concentrations in atmospheric aerosols at a rural location in Ontario, Canada confirm results of a previous study of urban aerosols that showed there are significant differences in the isotopic composition of lead from Canadian autos, Canadian smelters and eastern American sources. Lead measurements in fall 1984 and spring 1986 were apportioned to the respective sources as follows: for 1984 (55, 2, 43%) and for 1986 (69, 7, 24%). Lead isotopic and meteorological information point to In as the best elemental tracer of emissions from selected northern Canadian smelters.</p></div>","PeriodicalId":100138,"journal":{"name":"Atmospheric Environment (1967)","volume":"23 8","pages":"Pages 1645-1657"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0004-6981(89)90049-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"52832790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 89
Observed and modeled trend of sulfate and nitrate in precipitation in eastern North America 北美东部降水中硫酸盐和硝酸盐的观测和模拟趋势
Atmospheric Environment (1967) Pub Date : 1989-01-01 DOI: 10.1016/0004-6981(89)90071-1
James A. Fay, Dan Golomb, Stephen G. Zemba
{"title":"Observed and modeled trend of sulfate and nitrate in precipitation in eastern North America","authors":"James A. Fay,&nbsp;Dan Golomb,&nbsp;Stephen G. Zemba","doi":"10.1016/0004-6981(89)90071-1","DOIUrl":"10.1016/0004-6981(89)90071-1","url":null,"abstract":"<div><p>The trend of annual average sulfate and nitrate ion concentrations in precipitation at 17 stations in eastern North America over 7 years 1979–1985 is estimated and compared with a modeled trend. The observed concentrations fluctuate from year-to-year about a mean value with a standard deviation of 12.7% on average. The average slope of a linear regression line at the 17 stations is −2.8% a<sup>−1</sup> for sulfate and −0.4% a<sup>−1</sup> for nitrate. The modeled trend at these stations, which assumes constant meteorology but a year-to-year varying emission inventory, is −2.4% a<sup>−1</sup> for sulfate and −0.9% a<sup>−1</sup> for nitrate.</p></div>","PeriodicalId":100138,"journal":{"name":"Atmospheric Environment (1967)","volume":"23 8","pages":"Pages 1863-1866"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0004-6981(89)90071-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"52833095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Air pollutant emissions by combustion processes in Italy 意大利燃烧过程排放的空气污染物
Atmospheric Environment (1967) Pub Date : 1989-01-01 DOI: 10.1016/0004-6981(89)90093-0
Willy Bocola, Mario C. Cirillo
{"title":"Air pollutant emissions by combustion processes in Italy","authors":"Willy Bocola,&nbsp;Mario C. Cirillo","doi":"10.1016/0004-6981(89)90093-0","DOIUrl":"10.1016/0004-6981(89)90093-0","url":null,"abstract":"<div><p>An estimate is made of the emissions of the five main air pollutants resulting from combustion processes: sulphur oxides (SO<sub><em>x</em></sub>), nitrogen oxides (NO<sub><em>x</em></sub>), total suspended particles (TSP), CO and volatile organic compounds (VOC) which include gases. An initial estimate, intended to provide some indication of the emission time trend, covers the years 1976, 1980 and 1984. Here emissions are divided according to both large fuel-consuming sectors (industry, agriculture, thermal power plants, residential and commercial, transportation), and the type of fuel used (coal, lignite, natural gas, oil products).</p><p>A further estimate is made, with reference to 1980, in which identified emissions are related to individual Italian regions and to the large activity sectors. For the same year emissions are grouped with reference to the 150 km × 150 km EMEP grid.</p></div>","PeriodicalId":100138,"journal":{"name":"Atmospheric Environment (1967)","volume":"23 1","pages":"Pages 17-24"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0004-6981(89)90093-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"52833226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 33
Rotating shadowband photometer measurement of atmospheric turbidity: a tool for estimating visibility 旋转影带光度计测量大气浊度:估计能见度的工具
Atmospheric Environment (1967) Pub Date : 1989-01-01 DOI: 10.1016/0004-6981(89)90117-0
B.A. LeBaron , J.J. Michalsky , L. Harrison
{"title":"Rotating shadowband photometer measurement of atmospheric turbidity: a tool for estimating visibility","authors":"B.A. LeBaron ,&nbsp;J.J. Michalsky ,&nbsp;L. Harrison","doi":"10.1016/0004-6981(89)90117-0","DOIUrl":"10.1016/0004-6981(89)90117-0","url":null,"abstract":"<div><p>The rotating shadowband photometer (RSP) is a simple, low-cost instrument that automatically measures the total, diffuse and direct solar illuminance. On clear days, the direct component yields a measure of the total column extinction. This extinction calculation compares favorably with an independent and more conventional determination of extinction. The column extinction measurements can be corrected for the effect of stratospheric aerosols, thereby yielding the lower atmosphere extinction coefficient. This extinction coefficient should be useful in assessing small changes in atmospheric visibility over the long term.</p></div>","PeriodicalId":100138,"journal":{"name":"Atmospheric Environment (1967)","volume":"23 1","pages":"Pages 255-263"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0004-6981(89)90117-0","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"52833426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
A brief survey of methods for the measurement of gas-phase hydrogen peroxide 气相过氧化氢测定方法简述
Atmospheric Environment (1967) Pub Date : 1989-01-01 DOI: 10.1016/0004-6981(89)90124-8
Gregory L. Kok, Brian G. Heikes, John A. Lind, Allan L. Lazrus
{"title":"A brief survey of methods for the measurement of gas-phase hydrogen peroxide","authors":"Gregory L. Kok,&nbsp;Brian G. Heikes,&nbsp;John A. Lind,&nbsp;Allan L. Lazrus","doi":"10.1016/0004-6981(89)90124-8","DOIUrl":"10.1016/0004-6981(89)90124-8","url":null,"abstract":"","PeriodicalId":100138,"journal":{"name":"Atmospheric Environment (1967)","volume":"23 1","pages":"Page 283"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0004-6981(89)90124-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"52833472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
A method for determination of hydrogen peroxide in air : further discussion 空气中过氧化氢的测定方法:进一步讨论
Atmospheric Environment (1967) Pub Date : 1989-01-01 DOI: 10.1016/0004-6981(89)90125-X
Roger L. Tanner, Thomas J. Kelly
{"title":"A method for determination of hydrogen peroxide in air : further discussion","authors":"Roger L. Tanner,&nbsp;Thomas J. Kelly","doi":"10.1016/0004-6981(89)90125-X","DOIUrl":"10.1016/0004-6981(89)90125-X","url":null,"abstract":"","PeriodicalId":100138,"journal":{"name":"Atmospheric Environment (1967)","volume":"23 1","pages":"Pages 283-284"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0004-6981(89)90125-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"52833526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Early smelter sites: A neglected chapter in the history and geography of acid rain in the United States 早期冶炼厂遗址:美国酸雨历史和地理中被忽视的一章
Atmospheric Environment (1967) Pub Date : 1989-01-01 DOI: 10.1016/0004-6981(89)90152-2
M.-L. Quinn
{"title":"Early smelter sites: A neglected chapter in the history and geography of acid rain in the United States","authors":"M.-L. Quinn","doi":"10.1016/0004-6981(89)90152-2","DOIUrl":"10.1016/0004-6981(89)90152-2","url":null,"abstract":"<div><p>Dominant spatial and temporal theories of acid rain in the U.S. are identified, followed by brief comments on how historical data have generally been used in modern acid rain research. A frequently-cited 1982 article by E.B. Cowling is examined, one that has influenced much thinking on the history of acid rain. The article overlooks early American smelters, however, and the role they played in the true history and geography of acid rain in the United States. Continuing with this theme, a connection is established between acid rain and turn-of-the-century smelter smoke problems. Literature on the latter subject is discussed, and American and German examples are given. A beginning is then made on writing acid rain's neglected chapter, focusing on Tennessee's Copper Basin (Ducktown District) where copper smelting dates back to the 1850s. A short historical overview of this area's smelting operations is given, with particular attention to the air pollution and other environmental problems resulting from large emissions of sulfur dioxide. Five additional early smelter sites for potential study are mentioned as well. The paper concludes with some observations regarding the way in which expanded research of early smelter sites could affect the general perception of acid rain in the U.S. It is also suggested that such research might contribute to a better atmosphere for making decisions and policies pertaining to the phenomenon as it exists today.</p></div>","PeriodicalId":100138,"journal":{"name":"Atmospheric Environment (1967)","volume":"23 6","pages":"Pages 1281-1292"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0004-6981(89)90152-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"52833694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 13
A stochastic approach to the diffusion equation 扩散方程的随机方法
Atmospheric Environment (1967) Pub Date : 1989-01-01 DOI: 10.1016/0004-6981(89)90104-2
Raul Mihail , Liviu Ionită, Sorin Straja
{"title":"A stochastic approach to the diffusion equation","authors":"Raul Mihail ,&nbsp;Liviu Ionită,&nbsp;Sorin Straja","doi":"10.1016/0004-6981(89)90104-2","DOIUrl":"10.1016/0004-6981(89)90104-2","url":null,"abstract":"<div><p>Taking into account the wind speed perturbations from the deterministic equation of conservation of the molecular species of the pollutant we obtained the corresponding stochastic differential equation. Because there is no mathematical reason to discriminate between its Ito and Stratonovich interpretations, we retained, on physical grounds, the Stratonovich interpretation and we derived the equation of the expected value of the pollutant concentration.</p></div>","PeriodicalId":100138,"journal":{"name":"Atmospheric Environment (1967)","volume":"23 1","pages":"Pages 123-125"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0004-6981(89)90104-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"52833739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Airborne measurements of ozone concentrations in background air and power plant plumes 本底空气和电厂羽流中臭氧浓度的机载测量
Atmospheric Environment (1967) Pub Date : 1989-01-01 DOI: 10.1016/0004-6981(89)90187-X
Eric Joos, Gerard Maffiolo
{"title":"Airborne measurements of ozone concentrations in background air and power plant plumes","authors":"Eric Joos,&nbsp;Gerard Maffiolo","doi":"10.1016/0004-6981(89)90187-X","DOIUrl":"10.1016/0004-6981(89)90187-X","url":null,"abstract":"<div><p>Ozone plays an important role in the physicochemical interactions between plumes and background air. During two field programs conducted at Cordemais in fall 1984 and at Le Havre in fall 1985, concentration measurements were performed in background air and in the plumes of fossil-fuel fired power plants. In background air, the daily average ozone concentration varied between 15 and 60 ppb depending on solar irradiation, pollution level and atmospheric stability. Maximum values of 100 ppb were observed in industrial area plumes. In the power plant plume, consumption of atmospheric ozone by emitted NO is important during the first 5 km downwind of the power plant but does not totally explain some important formation of NO<sub>2</sub> identified at short distances downwind of the power plant.</p></div>","PeriodicalId":100138,"journal":{"name":"Atmospheric Environment (1967)","volume":"23 10","pages":"Pages 2249-2257"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0004-6981(89)90187-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"52833983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
C1- and C2-halocarbons in soil-air of forests 森林土壤-空气中的C1-和c2 -卤化碳
Atmospheric Environment (1967) Pub Date : 1989-01-01 DOI: 10.1016/0004-6981(89)90156-X
H. Frank, W. Frank, D. Thiel
{"title":"C1- and C2-halocarbons in soil-air of forests","authors":"H. Frank,&nbsp;W. Frank,&nbsp;D. Thiel","doi":"10.1016/0004-6981(89)90156-X","DOIUrl":"10.1016/0004-6981(89)90156-X","url":null,"abstract":"<div><p>Halogenated methanes, ethanes and ethenes have been determined quantitatively in the soil-air and in the atmosphere in forests of southern F.R.G.; the levels in both compartments are similar for most halocarbons, except for trichloromethane. The concentrations of the latter in soil-air are consistently higher than in the air above the ground, which is most pronounced on a mountain crest with severe tree damage.</p></div>","PeriodicalId":100138,"journal":{"name":"Atmospheric Environment (1967)","volume":"23 6","pages":"Pages 1333-1335"},"PeriodicalIF":0.0,"publicationDate":"1989-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0004-6981(89)90156-X","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"52834075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 43
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