CEP CEP Air Quality & Atmospheric Science

Question 1

Which U.S. federal law establishes the primary framework for regulating outdoor air quality and sets National Ambient Air Quality Standards (NAAQS)?

Accepted Answer

Clean Air Act

Answer

Clean Water Act

Answer

Resource Conservation and Recovery Act

Answer

Safe Drinking Water Act

Question 2

A 'criteria air pollutant' regulated under NAAQS includes which of the following?

Accepted Answer

Particulate Matter (PM2.5)

Answer

Dioxins

Answer

Polychlorinated biphenyls (PCBs)

Answer

Radon

Question 3

What is the primary difference between a 'primary' and 'secondary' NAAQS standard?

Accepted Answer

Primary standards protect public health; secondary standards protect public welfare

Answer

Primary standards protect vegetation; secondary standards protect human health

Answer

Primary standards are set by states; secondary standards are set by EPA

Answer

Primary standards apply to rural areas; secondary standards apply to urban areas

Question 4

Which air quality modeling approach is most commonly used by EPA for dispersion modeling of industrial stack emissions?

Accepted Answer

AERMOD

Answer

SWMM

Answer

HEC-RAS

Answer

WASP

Question 5

Under the Clean Air Act, a 'nonattainment area' is defined as a region where:

Accepted Answer

Ambient air quality exceeds one or more NAAQS

Answer

A new major source is being constructed

Answer

State Implementation Plan has not been submitted

Answer

Air quality monitoring stations are absent

Question 6

The term 'fugitive emissions' in air quality management refers to:

Accepted Answer

Emissions not released through a stack, vent, or other confined flow

Answer

Emissions from mobile sources such as cars

Answer

Pollutants released from permitted stacks

Answer

Greenhouse gases tracked under voluntary reporting