Question

Question 28 LIST at least three of the six criteria air pollutants that the clean air act regulates and for each that you listed explain its source (how it gets released into the atmosphere).

Answer 1

Under the clean air act six criteria air pollutants have been identified and these are as follows –

a) Carbon monoxide

b) Lead

c) Ground-level ozone

d) Nitrogen dioxide

e) Particulate matter, and

f) Sulfur dioxide

For this question let us take following three air pollutants –

a) Carbon monoxide

b) Sulfur dioxide

c) Lead

Their sources are as follows –

a) Carbon monoxide - Combustion of carbon-containing fuels, such as gasoline, natural gas, oil, coal, and wood

b) Sulfur dioxide – Processing of mineral ores containing sulfur, and sulfur dioxide, Industrial activities suing fossil fuels containing, Burning of fuels in motor vehicle.

c) Lead - Ore and metals processing, incinerators, utilities, and lead-acid battery manufacturers, lead smelters