Effects of photochemical smog
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چکیده
Photochemical smog IS a complex m1xture of chemiCals, some harmless. others h1ghly react1ve and poten11ally dangerous for plants, an1mats and humans. The main consmuents of photochemical smog are ozone (0.,) and nitrogen diox1de (N0 2). Although ozone is widely cons1dered the chTef indicator of photochemical smog, Ollrogen diox1de IS an important pollutant in 11s own right, alfecllng human and plant health and play1ng a role 1n the lormation of acid rain. Ozone. a powerful ox1dising gas. readily anacl<s liVIng tissue. In humans 11 can cause sore throats. 1nflammat10n and discharges 10 the nasal passages, and congestion at levels as tow as 10 parts per hundred m1lllon (p.p.h.m.). The current Australian health standard, set down by the National Health and Medical Research Counc111
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