What is the difference between acute and chronic toxicity?

What is the difference between point and nonpoint sources of pollution?

What was the Cuyahoga River in Ohio famous for in the 1960s?

What happened in Minamata, Japan in the 1950s? What was the pollutant and its source? What happened to make it toxic?

What does the Clean Water Act of 1972 require municipalities (cities) and industry to do?

What does the Safe Drinking Water Act of 1974 require the EPA to do?

What is a MCL?

Why was MTBE a surprise pollutant to the EPA?

Does bottled water have the same regulations as drinking water?

What did the 1980 CERLA law require?

What is Superfund?

What is the National Priority List?

Why is Superfund controversial among lawmakers?

What was the contaminant in Times Beach, Missouri?

How was it improperly disposed of?

What were the government actions at Times Beach and is it now clean?

What was the source of contamination at Love Canal, New York?

What were the government actions at Love Canal and is it now clean?