Lead
Naturally occurring heavy metal commonly found in tap water
Health Guideline Level (HGL)
0 ppb
Maximum level that poses minimal health risk based on the latest science
Health Effects
Health protective benchmarks for oral exposure to lead are based on delays in physical or mental development for children and infants, and impacts to the kidneys and high blood pressure for adults. Children are especially susceptible to the effects of lead. Even low levels of lead can damage the brain and nervous system, slow development, and lead to problems with learning, behavior, hearing, and speech. In adults, lead can lead to hypertension, reproductive problems, neurological disorders, decreased kidney function and muscle and joint pain. Exposure to lead can also cause anemia and impact the immune system for both children and adults. The EPA classifies lead as a probable human carcinogen.
Affected Organs & Systems:
Common Sources
- Enters drinking water primarily through the corrosion of pipes, fixtures, solder and service lines
- Erosion of natural lead deposits and industrial waste streams can also increase levels of lead in drinking water
How to Remove It
Water filters certified under the following NSF standards are effective at removing Lead:
Health Guideline Level
The HGL represents the maximum level that poses minimal health risk based on the latest scientific research. It's often more protective than federal legal limits.
Contaminant Type
Lead is classified as a Metals contaminant.
This contaminant primarily affects the nervous-system, developmental, and other systems.
Check Your Water
Find out if Lead is in your tap water.
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