EESA10H3 Chapter 2: Chapter 2-Life Support Book

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Recognition of the relationship between non-workplace (i. e. , community) air pollution and respiratory disease dates back to the first use of coal as a combustion source in the fourteenth century. Later, in the industrial nations of europe and north america, whole communities were engulfed in air pollutants, resulting in serious illness and death among individuals with cardiopulmonary disease. These episodes occurred in the meuse valley of belgium in 1930; in donora, pennsylvania, in. These air pollution emergencies were caused by air stagnation, which resulted in greatly increased concentrations of atmospheric pollutants, especially sulfur dioxide and suspended particulates. As a result of these epidemics, scientists and governments paid increased attention to the health effects of air pollution. First, since the atmosphere is dynamic and always changing, contaminants are transported (sometimes over thousands of miles), diluted, precipitated, and transformed. Air pollution, therefore, knows no boundaries or national borders.

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