What is the maximum contaminant level of arsenic set by the EPA?

The maximum contaminant level (MCL) for arsenic set by the EPA is established at 10 micrograms per liter (µg/L), which is equivalent to 10 milligrams per liter (mg/L) when considering the micrograms in relation to milliliters. This standard was implemented to protect public health, as arsenic is a known toxicant and carcinogen that can have serious health effects when present in drinking water. The regulation is designed to ensure that drinking water supplies remain safe and that exposure to harmful levels of arsenic is minimized for the population. Adhering to this MCL helps in the prevention of health issues such as skin lesions, developmental effects, cardiovascular disease, and an increased risk of cancer.