HSE Environmental Regulations and Sustainability Practices 5

Question 1

Under the Safe Drinking Water Act (SDWA), Maximum Contaminant Levels (MCLs) are set as close as feasible to MCL Goals (MCLGs) because MCLGs are:

Accepted Answer

Non-enforceable health goals set at levels with no known or anticipated adverse effects

Answer

MCLGs are non-enforceable public health goals set at levels causing no known or anticipated adverse health effects with an adequate margin of safety; MCLs are the enforceable standards set as close to MCLGs as feasible.

Question 2

Which air pollutant classification under the Clean Air Act requires facilities to use Maximum Achievable Control Technology (MACT)?

Accepted Answer

Hazardous air pollutants (HAPs)

Answer

MACT standards apply to sources of hazardous air pollutants (HAPs) — the 187 substances listed under Clean Air Act Section 112 — based on the best-performing similar sources.

Question 3

A 'life cycle assessment' (LCA) in environmental sustainability evaluates:

Accepted Answer

Environmental impacts associated with all stages of a product's life from raw material extraction to disposal

Answer

LCA quantifies environmental inputs and outputs (energy, materials, emissions) across all life cycle stages — extraction, manufacturing, use, and end-of-life — to identify improvement opportunities.

Question 4

Under the Endangered Species Act (ESA), a 'biological opinion' is issued by which agency during Section 7 consultation?

Accepted Answer

U.S. Fish and Wildlife Service or NOAA Fisheries

Answer

During Section 7 formal consultation, the U.S. Fish and Wildlife Service (for terrestrial/freshwater species) or NOAA Fisheries (for marine species) issues a biological opinion on whether a federal action will jeopardize listed species.

Question 5

Which of the following correctly describes the 'cap and trade' mechanism used in the EPA's Acid Rain Program?

Accepted Answer

A system setting an aggregate emission cap with facilities able to buy and sell allowances to meet individual limits

Answer

Cap and trade sets a total emission ceiling (cap) and issues allowances; facilities that reduce emissions below their allocation can sell surplus allowances to facilities that need more.

(HSE) Certified Health Safety Environment Practice Test

(HSE) Certified Health Safety Environment Practice Test

HSE Environmental Regulations and Sustainability Practices 5