EPA 608 609 - EPA Refrigerant Handling Ozone Depletion and Regulations Questions and Answers 3

Question 1

Under EPA Section 608, what penalty can be imposed for knowingly venting refrigerants into the atmosphere?

Accepted Answer

Up to $44,539 per day per violation

Answer

EPA Section 608 allows civil penalties of up to $44,539 per day per violation (adjusted periodically for inflation) for knowingly venting regulated refrigerants. The EPA can also pursue criminal penalties for willful violations. These substantial fines reflect the seriousness of atmospheric refrigerant releases.

Question 2

Which refrigerant class has an Ozone Depletion Potential (ODP) of zero?

Accepted Answer

HFCs (hydrofluorocarbons)

Answer

HFCs (hydrofluorocarbons) contain no chlorine or bromine atoms, giving them an ODP of zero. Because they do not contribute to stratospheric ozone depletion, HFCs like R-410A and R-134a replaced CFCs and HCFCs as preferred refrigerants. However, HFCs do have high global warming potentials (GWP), which is a separate environmental concern.

Question 3

What does "Global Warming Potential" (GWP) measure for a refrigerant?

Accepted Answer

How much heat a refrigerant traps in the atmosphere relative to CO2

Answer

Global Warming Potential (GWP) measures how much heat a greenhouse gas traps in the atmosphere over a 100-year period relative to the same mass of CO2, which has a GWP of 1. R-410A has a GWP of about 2,088, and R-22 has a GWP of 1,810. High-GWP refrigerants contribute significantly to climate change when released.

Question 4

The AIM Act (American Innovation and Manufacturing Act) of 2020 directed the EPA to phase down which class of refrigerants by 85% by 2036?

Accepted Answer

HFCs

Answer

The AIM Act, signed in 2020, authorized the EPA to phase down HFCs (hydrofluorocarbons) by 85% from baseline levels by 2036. HFCs replaced ozone-depleting CFCs and HCFCs but have high GWPs that contribute to climate change. The AIM Act transitions the industry toward lower-GWP alternatives like HFOs and natural refrigerants.

Question 5

Which refrigerant has both a non-zero ODP and a high GWP, making it subject to phaseout under both the Montreal Protocol and climate regulations?

Accepted Answer

R-22

Answer

R-22 (HCFC-22) has an ODP of 0.055 (non-zero, chlorine-containing) and a GWP of 1,810. This means it contributes to both ozone depletion and climate change, making it subject to phaseout under the Montreal Protocol's HCFC schedule. R-410A (HFC) has zero ODP but high GWP; R-134a (HFC) has zero ODP; CO2 has both zero ODP and a GWP of 1.

EPA 608 609 Practice Test

EPA 608 609 Practice Test

EPA 608 609 - EPA Refrigerant Handling Ozone Depletion and Regulations Questions and Answers 3