Know Your Environment. Protect Your Health.

Manganese

Humboldt, City of

Manganese is a naturally occurring element that is common in food and drinking water. Excessive manganese exposures may impair children's attention, memory and intellectual capacity. Click here to read more about manganese.

 

6

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20185.00 ppb115.00 ppb
20193.40 ppb113.40 ppb
202010.00 ppb1110.00 ppb
202111.0 ppb1111.0 ppb
20226.30 ppb116.30 ppb
20234.20 ppb114.20 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 100 ppb

The EWG Health Guideline of 100 ppb for manganese was defined by the state of Minnesota as a health risk limit, the concentration of a contaminant that can be consumed with little or no risk to health. This health guideline protects against harm to the brain and nervous system.

ppb = parts per billion

All test results

Date Lab ID Result
2018-04-169385415.00 ppb
2019-04-0811398413.40 ppb
2020-04-13135657010.00 ppb
2021-04-05181080511.0 ppb
2022-04-0422300766.30 ppb
2023-04-0324744854.20 ppb