CEM Air Quality Management & Monitoring 2

Question 1

Which measurement approach is used in the EPA Federal Reference Method (FRM) for ambient PM2.5 monitoring?

Accepted Answer

Gravimetric filter-based sampling

Answer

Flame ionization detection (FID)

Answer

Chemiluminescence analysis

Answer

Ultraviolet photometric detection

Question 2

Which EPA-approved method is primarily used to measure total particulate matter (filterable) emissions from a stationary source stack?

Accepted Answer

EPA Method 5 (particulate matter)

Answer

EPA Method 9 (visible emissions)

Answer

EPA Method 25A (total hydrocarbons)

Answer

EPA Method 7E (NOx)

Question 3

Continuous Emission Monitoring Systems (CEMS) are most commonly required for facilities subject to which Clean Air Act program?

Accepted Answer

Acid Rain Program (Title IV) and other major source requirements

Answer

Minor source general permits

Answer

Mobile source emission standards only

Answer

Area source registration programs

Question 4

Which EPA-preferred regulatory dispersion model is used to estimate ground-level pollutant concentrations from stationary sources?

Accepted Answer

AERMOD

Answer

SCREEN3

Answer

CAL3QHC

Answer

CALINE4

Question 5

The 'bubble concept' in air quality regulation allows a facility to:

Accepted Answer

Average emissions across multiple emission points within a facility to meet an overall emission limit

Answer

Exceed permit limits during startup and shutdown events

Answer

Purchase emission offsets from facilities in other states

Answer

Delay compliance schedules for new emission standards by five years

Question 6

What does 'opacity' measure in the context of visible emission monitoring?

Accepted Answer

The degree to which particulate emissions block the transmission of light

Answer

Concentration of sulfur dioxide in a stack gas stream

Answer

Temperature of exhaust gases exiting a stack

Answer

Velocity of gas flow through an emission control device

Question 7

Under EPCRA Section 313, facilities must submit a Toxics Release Inventory (TRI) report detailing:

Accepted Answer

Annual releases and off-site transfers of listed toxic chemicals above threshold quantities

Answer

Only accidental releases of extremely hazardous substances

Answer

Monthly ambient air monitoring data for criteria pollutants

Answer

Hazardous waste generation and disposal volumes only