lithium in Drinking Water
EPA Limit (MCL)
No federal limit
EPA Goal (MCLG)
N/A
Health Guideline
10 ug/L
Source: EPA/USGS HBSL
Status
Unregulated
Health Effects
Lithium at high levels in drinking water may affect kidney function and thyroid health. At low levels naturally found in water, some studies suggest potential neurological benefits, but more research is needed.
How lithium Gets Into Water
Naturally occurring mineral found in rocks and soil. Enters water supplies through natural weathering. Higher levels are found in areas with lithium-rich geological formations.
How to Remove lithium
Reverse osmosis is the most effective method for removing lithium from drinking water. Distillation can also reduce lithium levels.
Recommended: Reverse Osmosis or Ion Exchange
RO systems or specialized ion exchange filters can reduce nitrates, arsenic, and other inorganic contaminants.
Up to 95% removal depending on contaminant
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