### Question
How does the law define toxic air pollutants?


### Answer
Under *42 U.S.C. § 7545*, **toxic air pollutants** is defined as:

> the aggregate emissions of the following:


Benzene


1,3 Butadiene


Polycyclic organic matter (POM)


Acetaldehyde


Formaldehyde

#### Citation:
  - *42 U.S.C. § 7545*
  - Heading: **SUBCHAPTER I-PROGRAMS AND ACTIVITIES > Subchapter Referred to in Other Sections > Part Referred to in Other Sections**

