AQS Pollution Sources 5

Question 1

Paint application operations at auto body shops are regulated HAP sources because they emit:

Accepted Answer

Chromium and isocyanates from coatings

Answer

Spray painting releases hexavalent chromium from certain primers and isocyanates from two-part urethane coatings, both regulated HAPs.

Question 2

Under the Emergency Planning and Community Right-to-Know Act (EPCRA), facilities must report air releases of listed toxic chemicals through:

Accepted Answer

Toxic Release Inventory (TRI) Form R reporting

Answer

EPCRA Section 313 requires facilities that use or manufacture listed toxic chemicals above threshold quantities to file annual TRI Form R reports with EPA.

Question 3

Which type of industrial source emits the most lead (Pb) air pollution in the United States today?

Accepted Answer

Piston-engine aircraft using avgas

Answer

Following the phase-out of leaded gasoline, piston-engine aircraft burning 100LL avgas became the largest single remaining source of airborne lead in the U.S.

Question 4

Semiconductor manufacturing facilities are regulated NESHAP sources primarily due to emissions of:

Accepted Answer

Toxic gases such as arsine, phosphine, and chlorine

Answer

Chip fabrication uses highly toxic dopant and etchant gases including arsine, phosphine, and chlorine, which are regulated as hazardous air pollutants.

Question 5

Which pollutant is the primary concern from crematoriums as regulated area sources?

Accepted Answer

Mercury from dental amalgam and dioxin/furan emissions

Answer

Crematoriums are regulated because they can release mercury from dental fillings and dioxins/furans from incomplete combustion of body tissues and caskets.

(AQS) Air Quality Specialist Certification Practice Test

(AQS) Air Quality Specialist Certification Practice Test

AQS Pollution Sources 5