Which pollutant is NOT typically regulated under NESHAP?

The National Emission Standards for Hazardous Air Pollutants (NESHAP) are specifically designed to regulate certain hazardous air pollutants that are known to cause serious health risks or environmental damage. The primary focus of NESHAP is to manage emissions from major sources of hazardous air pollutants.

Vinyl chloride and beryllium, for instance, are both recognized as hazardous pollutants that pose significant health risks, and they are included in the NESHAP regulations due to their potential impact on air quality and public health. Radon, while a significant health concern, is not typically covered under NESHAP, as it is regulated under other frameworks, such as the Safe Drinking Water Act or certain state regulations.

Ozone, on the other hand, is a secondary pollutant, resulting from reactions between volatile organic compounds (VOCs) and nitrogen oxides in the presence of sunlight. It falls under the National Ambient Air Quality Standards (NAAQS) rather than NESHAP, which focuses specifically on hazardous air pollutants rather than criteria pollutants like ozone.

Therefore, while vinyl chloride and beryllium are regulated under NESHAP, radon does not fall within this category, and ozone is governed by different standards aimed at controlling its levels in