Environmental Management practice questions

Answer: B) The emission sources at the facility and the quantity of each air pollutant they release

An air emissions inventory lists a facility's emission sources and the amount of each air pollutant they release, typically per year. Regulators use it for permitting and air quality planning.

• AIncorrect. That is an occupational exposure assessment. It measures what workers inhale, not what the facility releases to the atmosphere.
• BCorrect. An emissions inventory identifies sources (point, process, and so on) and the actual emissions of each pollutant over a period such as a calendar year. This data supports permitting and reporting, for example under 40 CFR Part 51 Subpart A.
• CIncorrect. Ambient monitoring measures air quality in the area. It does not attribute emission quantities to the facility's sources.
• DIncorrect. That is tracked through hazardous waste manifests and waste reports, not an air emissions inventory.

Answer: D) Pesticide registration, sale and use

• AIncorrect. That's the Clean Air Act.
• BIncorrect. That's OSHA.
• CIncorrect. That's the Clean Water Act.
• DCorrect. Labels carry legal requirements.

Answer: C) Credit reductions or removals achieved outside its operations against its emissions

Carbon offsets let an organization fund and claim verified emission reductions or removals made elsewhere to compensate for its own emissions. Its own emissions are not reduced and still have to be measured and reported.

• AIncorrect. Offsets do not change the emissions the organization's own sources release. Those still have to be measured and reported. Only direct abatement lowers gross emissions.
• BIncorrect. Buying offsets does not shift any regulatory or disclosure obligation. The organization still reports its own emissions, and reporting rules may also require disclosing offset use.
• CCorrect. An offset credit represents a verified reduction or removal (for example, one metric ton of CO2e) that occurs elsewhere. The buyer retires it to compensate for its own emissions. Offset quality and verification vary.
• DIncorrect. Efficiency upgrades at the organization's own plant reduce its own emissions directly. They are internal reductions, not offsets bought from projects elsewhere.

Answer: A) 55 gallons

40 CFR 264.175(b)(3) requires containment capacity equal to the greater of 10% of total container volume or the largest container. For three 55-gal drums, that is 55 gal.

• ACorrect. 10% of 165 gal is 16.5 gal, and the largest container is 55 gal. The greater of the two values, 55 gal, governs.
• BIncorrect. This is 10% of the total volume, but the rule requires the greater value. Here that is the 55-gal largest container.
• CIncorrect. The rule does not require containment for the full combined volume of all containers.
• DIncorrect. 110% of the largest container is a different rule of thumb used in other containment contexts. It is not the 264.175(b)(3) criterion.

Answer: C) Type III technician certification under Section 608

An appliance whose refrigerant is below 45 psia at 104 °F is a low-pressure appliance (40 CFR 82.152). Servicing it requires Type III or Universal certification (40 CFR 82.161).

• AIncorrect. Under 40 CFR 82.161, Type I covers maintaining, servicing or repairing small appliances. A centrifugal chiller is not a small appliance.
• BIncorrect. Type II covers medium-, high- and very-high-pressure appliances. Under 40 CFR 82.152, a medium-pressure appliance uses refrigerant at 45–170 psia at 104 °F. This chiller is below 45 psia, so Type II does not apply.
• CCorrect. 40 CFR 82.152 defines a low-pressure appliance as one whose refrigerant has a liquid-phase saturation pressure below 45 psia at 104 °F. 40 CFR 82.161 requires anyone who maintains, services, repairs or disposes of low-pressure appliances to be certified as Type III (or Universal).
• DIncorrect. Section 609 certification covers motor vehicle air-conditioning service. It does not meet the Section 608 requirements for stationary equipment such as chillers.

Answer: A) Rate each aspect by its actual or potential effect on the environment, using defined criteria

In an EMS, aspects are the elements of an organization's activities, products or services that can interact with the environment. Aspects are rated as significant based on their actual or potential environmental impact, and those aspects drive the objectives, targets and controls.

• ACorrect. Aspects are the elements of activities, products or services that can interact with the environment. Ranking them by actual or potential environmental impact identifies which need objectives, targets and controls.
• BIncorrect. Cost can affect how a control is chosen, but it does not decide significance. A costly aspect with a large impact is still significant.
• CIncorrect. That is how an occupational health and safety management system assesses hazards. Environmental aspects are rated by how they interact with the environment.
• DIncorrect. Compliance history can be one input, but an aspect with a large environmental impact can be significant without any prior citation. Significance is about impact, not enforcement history.

Answer: B) Profit

• AIncorrect. It's profit.
• BCorrect. Social, environmental and economic results.
• CIncorrect. It's profit.
• DIncorrect. It's profit.

Answer: A) They resist breaking down, so they stay in the environment for long periods and can build up in the body with repeated exposure

PFAS resist breaking down, so they persist in the environment and can build up in people. Together with their widespread use, including in AFFF and firefighter gear, this makes them a long-term environmental and occupational health concern.

• ACorrect. NIOSH describes PFAS as resistant to breaking down. They persist in the environment and in people, and more than 98% of people in the U.S. have been found to have PFAS in their blood.
• BIncorrect. PFAS are known for resisting degradation, not for breaking down quickly. The concern is long-term persistence and accumulation, not just short-term peaks.
• CIncorrect. PFAS persist in soil and water and contaminate them over the long term. They don't leave these media within days.
• DIncorrect. PFAS have been used since the 1950s and remain in products such as stain-resistant textiles, food packaging, cosmetics, AFFF, and firefighter turnout gear, so current exposures still happen.

Answer: B) Climate adaptation to build resilience

Measures that prepare facilities and people for climate hazards such as flooding and extreme heat are adaptation, which builds resilience. Mitigation and offsetting deal with emissions, not with protecting against climate impacts.

• AIncorrect. Mitigation means reducing greenhouse gas emissions to limit climate change itself. These measures prepare the facility for climate impacts and do not reduce emissions.
• BCorrect. Preparing facilities and workers for expected climate hazards such as flooding and extreme heat is adaptation. Adaptation builds resilience to climate effects, which is the approach behind CDC's Building Resilience Against Climate Effects (BRACE) framework.
• CIncorrect. Carbon offsetting pays for emission reductions elsewhere to balance a facility's own emissions. It does nothing to protect equipment or workers from heat or flooding.
• DIncorrect. Source reduction prevents pollution or waste where it is generated. It is a pollution prevention strategy, not a way to prepare for climate hazards.

Answer: A) Clean Water Act Section 404 dredged or fill material permits

Discharging dredged or fill material into waters of the U.S., including wetlands, needs a CWA Section 404 permit from the Army Corps of Engineers. Section 402 NPDES covers other point-source pollutant discharges.

• ACorrect. CWA Section 404 (33 U.S.C. 1344) authorizes permits for discharging dredged or fill material into navigable waters, including jurisdictional wetlands. The Army Corps of Engineers issues them.
• BIncorrect. Section 402 (33 U.S.C. 1342) sets up the NPDES program for point-source pollutant discharges such as process wastewater and stormwater. Discharges of dredged or fill material fall under the separate Section 404 program.
• CIncorrect. RCRA Subtitle C covers the treatment, storage and disposal of hazardous waste. It doesn't regulate placing fill in wetlands.
• DIncorrect. CERCLA (Superfund) deals with cleanup of, and liability for, releases of hazardous substances. It isn't a permit program for filling wetlands.