National Primary Drinking Water Regulations | US EPA
Oct 9, 2024 · Infants below the age of six months who drink water containing nitrate in excess of the MCL could become seriously ill and, if untreated, may die. Symptoms include shortness of breath and blue-baby syndrome. Runoff from fertilizer use; leaking from septic tanks, sewage; erosion of natural deposits.
Drinking Water Nitrate and Human Health: An Updated Review
Since our review of drinking water nitrate and health in 2005 [8], eight case-control studies and eight analyses in three cohorts have evaluated historical nitrate levels in PWS in relation to several cancers. Nitrate levels were largely below 10 mg/L NO 3 -N.
Estimated Nitrate Concentrations in Groundwater Used for Drinking
Nov 30, 2023 · Estimated state areas and percent of state areas with groundwater nitrate concentrations > 10 mg/l, which is EPA's maximum contaminant level for nitrate. Also shown is the estimated % of the population in each state with self-supplied drinking water (98% of which is from groundwater wells).
Nitrate/Nitrite Toxicity: What Are U.S. Standards and Regulations …
EPA has set an enforceable standard called a maximum contaminant level (MCL) in water for nitrates at 10 parts per million (ppm) (10 mg/L) and for nitrites at 1 ppm (1 mg/L) [EPA 2002; EPA 2012]. EPA believes that exposure below this level is …
Nitrates in Drinking Water - Penn State Extension
Excessive nitrates in drinking water can cause "blue-baby syndrome" or methemoglobinemia. Various treatment options are available to remove nitrate from water.
The maximum contaminant level, or EPA’s drinking water standard, for nitrate is 10 milligrams per liter (mg/L), which is the same thing as 10 parts per million (ppm). If a nitrate test shows levels higher than 10 ppm, you should find a safe, alternate drinking water supply.
Since ingestion of water containing high nitrate concentrations can be fatal to infants and livestock, the U.S. EPA has established a level of 10 mg/L total nitrate (measured as nitrogen) as the Maximum Contaminant Level Goal (MCLG) and Maximum Contaminant Level (MCL) in …
Nitrate in Drinking Water - MN Dept. of Health
Oct 11, 2024 · The U.S. Environmental Protection Agency (EPA) standard for nitrate in drinking water is 10 milligrams of nitrate (measured as nitrogen) per liter of drinking water (mg/L).* Drinking water with levels of nitrate at or below 10 mg/L is considered safe for everyone.
Nitrite was detected in 11.5% of the raw water samples at an average concentration of 0.05 mg/L (maximum of 0.3 mg/L) and in 6.9% of the treated water samples at an average concentration of 0.05 mg/L (maximum of 0.3 mg/L) (Health Canada, 2013).
NITRATE IN YOUR DRINKING WATER: WHAT YOU NEED TO KNOW. Water quality in the State of Iowa has been an increasing public health concern in recent years, primarily due to nitrate levels that exceed the EPA standard set in 1962 of 10 mg/L for drinking water.