Nitrogen Oxides, VOC, and Ozone

Like CO and SOx, nitrie oxide (NO) and nitrogen dioxide (NO2) are emitted by fired heaters, power plants and FCC regenerators. NOx also damage respiratory tissues and contribute to acid rain. 

In the United States, areas with the worst air are Los Angeles, Houston, Eastern Connecticut, and New York. In recent years, due to better air in Los Angeles and worse air in Houston (caused in part by accidental releases from ehemieal plants along the Ship Channel), Houston led the United States in U - 

Standards for selected pollutants in the air over Los Angeles are given in 

Pollutant Maximum Allowable Concentration, ppm Warning Alert Danger 

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