Question 1

What is the EPA limit for mercury in drinking water?

Accepted Answer

The EPA Maximum Contaminant Level (MCL) for mercury is 0.002 ppm. Public water systems must keep mercury below this level.

Question 2

What are the health effects of mercury in drinking water?

Accepted Answer

Mercury is a potent neurotoxin that accumulates in the body over time. The inorganic mercury found in drinking water can convert to methylmercury in the body, the most toxic form. The EPA MCL is 2 ppb. Chronic exposure damages the central n

Question 3

Where does mercury in drinking water come from?

Accepted Answer

Mercury enters drinking water from both natural and human sources. Natural deposits of cinnabar (mercury sulfide) release mercury into groundwater, particularly in regions with volcanic activity and mineral-rich geology. Coal-fired power pl

Question 4

How do I remove mercury from my drinking water?

Accepted Answer

Mercury is effectively removed by: Reverse Osmosis, Ion Exchange, Activated Carbon. Look for NSF-certified filters that explicitly list mercury reduction.

Mercury in Drinking Water - EPA MCL, Health Effects & Removal