Results 291 to 300 of about 248,658 (335)
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BMJ, 1957
Publisher Summary This chapter provides an overview of air pollution. The air over towns has been polluted for many centuries by products of combustion—complete and incomplete—of fuels. To the coal smoke, which was the predominant pollutant in former times, industry and the motor vehicle have added many more substances of proven or potential toxicity.
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Publisher Summary This chapter provides an overview of air pollution. The air over towns has been polluted for many centuries by products of combustion—complete and incomplete—of fuels. To the coal smoke, which was the predominant pollutant in former times, industry and the motor vehicle have added many more substances of proven or potential toxicity.
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2008
Publisher Summary Air pollutants can be considered in three contexts: pervasive, confined, and breathing zone. The sources of air pollutants include industrial as well as consumer use of chemicals. Pervasive air pollutants can be vapors, aerosols, or particulates. They primarily arise from industrial manufacturing, mining, agricultural activity, fires,
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Publisher Summary Air pollutants can be considered in three contexts: pervasive, confined, and breathing zone. The sources of air pollutants include industrial as well as consumer use of chemicals. Pervasive air pollutants can be vapors, aerosols, or particulates. They primarily arise from industrial manufacturing, mining, agricultural activity, fires,
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Environmental Science & Technology, 1983
Source de la pollution radioactive par le radon dans les maisons. Exposition.
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Source de la pollution radioactive par le radon dans les maisons. Exposition.
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1978
Publisher Summary This chapter discusses the air pollutants that are toxic to trees. The air pollutants can occur in several forms: invisible gases, particulates, or aerosols. Most initial symptoms in plants from air pollutants appear on the leaves. Toxic gases enter the leaves through the stomata and react with the internal leaf tissues. The affected
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Publisher Summary This chapter discusses the air pollutants that are toxic to trees. The air pollutants can occur in several forms: invisible gases, particulates, or aerosols. Most initial symptoms in plants from air pollutants appear on the leaves. Toxic gases enter the leaves through the stomata and react with the internal leaf tissues. The affected
openaire +3 more sources