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EFFECTS OF ACID RAIN

EFFECTS OF ACID RAIN

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NATURAL pH <strong>OF</strong> <strong>RAIN</strong><br />

• Equilibrium with natural CO 2 (280 ppmv) results in a rain pH of 5.7:<br />

• This pH can be modified by natural acids (H 2 SO 4 , HNO 3 , RCOOH…)<br />

and bases (NH 3 , CaCO 3 ) natural rain has a pH in range 5-7<br />

“Acid rain” refers to rain with pH < 5 damage to ecosystems

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