Environmental
What is 'methyl tertiary-butyl ether' (MTBE) and why is it a concern in Delaware water supply?
AA harmless additive to natural gas used in home heating
BA gasoline additive that is highly soluble in water and can contaminate drinking water supplies from leaking USTs or spills✓ Correct
CA chemical used in dry cleaning that contaminates soil
DAn agricultural herbicide with minimal groundwater impact
Explanation
MTBE is a gasoline additive used to reduce emissions. It is highly soluble in water, persistent, and imparts a foul taste and odor to drinking water at very low concentrations. MTBE contamination from leaking USTs is a significant groundwater concern in Delaware.
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