What is the Arsenic MCL in drinking water?

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Prepare for the ADEQ Water Treatment Grade 4 Test. Study with flashcards and multiple-choice questions, with each question offering hints and explanations. Ace your exam!

Multiple Choice

What is the Arsenic MCL in drinking water?

Explanation:
The key idea is the regulatory limit for arsenic in drinking water, known as the maximum contaminant level (MCL). The MCL for arsenic is 0.010 mg/L, which is the same as 10 micrograms per liter (10 µg/L or 10 ppb). This level was set to reduce long-term health risks, including cancer, from arsenic exposure. Values at or below 0.010 mg/L meet the standard, while higher numbers would exceed the limit. Lower values are more protective but are not the published MCL.

The key idea is the regulatory limit for arsenic in drinking water, known as the maximum contaminant level (MCL). The MCL for arsenic is 0.010 mg/L, which is the same as 10 micrograms per liter (10 µg/L or 10 ppb). This level was set to reduce long-term health risks, including cancer, from arsenic exposure. Values at or below 0.010 mg/L meet the standard, while higher numbers would exceed the limit. Lower values are more protective but are not the published MCL.

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