AIR POLLUTION
AIR POLLUTION
The threshold concept is the basis for federal and state laws regulating the level of hazardous substances to which people may be exposed in the workplace. Some government regulations also control the substances discharged into the air people breathe. Still others set acceptable levels for contaminants in the water we drink and the food we eat. But the problem is determining what constitutes a safe level. Allowances must be made for the lower thresholds of the very young, the very old, the sick, the disabled, and others who are at special risk because of some genetic, developmental, nutritional, physiological, or psychological character.
At this time, government, industry, and private citizen are in the midst of a heated, ongoing debate over all forms of pollution. As you will see in this chapter, we as individuals must make choices as to the types and quantities of pollution to which we are exposed; and then we can take action to make our concerns known to those who have some control over pollution.
Air pollution is the presence in the air of contaminant that do not disperse properly and that interfere with human health. People once believed that earth had an unlimited supply of breathable air . But now there is widespread doubt; We now know that the air –most vital of our natural resources- must be protected before it is irreversible fouled by wastes from industries, homes, and automobiles.
How Air pollution endangers Our health
Air pollution poses its most immediate threats to the respiratory system, but over time it can also harm other parts of the body, including the brain and the heart.
The threshold concept is the basis for federal and state laws regulating the level of hazardous substances to which people may be exposed in the workplace. Some government regulations also control the substances discharged into the air people breathe. Still others set acceptable levels for contaminants in the water we drink and the food we eat. But the problem is determining what constitutes a safe level. Allowances must be made for the lower thresholds of the very young, the very old, the sick, the disabled, and others who are at special risk because of some genetic, developmental, nutritional, physiological, or psychological character.
At this time, government, industry, and private citizen are in the midst of a heated, ongoing debate over all forms of pollution. As you will see in this chapter, we as individuals must make choices as to the types and quantities of pollution to which we are exposed; and then we can take action to make our concerns known to those who have some control over pollution.
Air pollution is the presence in the air of contaminant that do not disperse properly and that interfere with human health. People once believed that earth had an unlimited supply of breathable air . But now there is widespread doubt; We now know that the air –most vital of our natural resources- must be protected before it is irreversible fouled by wastes from industries, homes, and automobiles.
How Air pollution endangers Our health
Air pollution poses its most immediate threats to the respiratory system, but over time it can also harm other parts of the body, including the brain and the heart.
Labels: Waste Treatment
posted by Margi @ 1:24 AM
0 Comments:
Post a Comment
Subscribe to Post Comments [Atom]
<< Home