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Tropospheric Pollution Part II:Aerosols - Atmospheric and Oceanic ...

Tropospheric Pollution Part II:Aerosols - Atmospheric and Oceanic ...

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What causes acid rain?<br />

1. Primary emissions of sulfur dioxide (SO2) <strong>and</strong><br />

nitrogen oxides (NOx) resulting from fossil fuel<br />

combustion<br />

2. Sulfur in the air combines with oxygen to form<br />

sulfur dioxide (SO2)<br />

3. Car exhaust causes nitrogen oxides in the air<br />

(NOx)<br />

4. From (SO2) <strong>and</strong> (NOx) airborne sulfuric acid<br />

(H2SO4) <strong>and</strong> nitric acid (HNO3) can be formed<br />

<strong>and</strong> dissolved in water vapor

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