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EWG's Tap Water Database — 2021 UPDATE

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Mercury (inorganic)

Yonkers City

Mercury is a potent neurotoxin that also damages the kidneys and other internal organs. Mercury enters drinking water from industrial pollution, mining wastes and coal-fired power plants.

MORE ABOUT THIS CONTAMINANT

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND40ND
2015N/A00N/A
2016ND40ND
2017ND40ND
2018ND40ND
2019ND40ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 1.2 ppb

The EWG Health Guideline of 1.2 ppb for mercury (inorganic) was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against harm to internal organs.

EPA Maximum Contaminant
Level (MCL) 2 ppb

The legal limit for inorganic mercury, established in 1991, was based on toxicity studies conducted in laboratory animals in the 1970s and 1980s. This limit does not include any additional consideration of children’s health.

ppb = parts per billion

All test results

Date Lab ID Result
2014-03-2014-4421 INPND
2014-03-2014-4423 INPND
2014-03-2014-2242 INPND
2014-03-2014-4422 INPND
2016-06-2216-8292 INPND
2016-06-2216-8293 INPND
2016-06-2216-8291 INPND
2016-06-2716-8485 INPND
2017-03-0717-2237-INPND
2017-03-0717-2256-INPND
2017-03-0717-2254-INPND
2017-03-0717-2255-INPND
2018-05-1518-5024-INPND
2018-05-1518-5003-INPND
2018-05-1518-5027-INPND
2018-05-2918-5551-INPND
2019-05-1619-5074 INPND
2019-05-1619-5075 INPND
2019-05-1619-5076 INPND
2019-05-1619-5073 INPND