Know Your Environment. Protect Your Health.

Monochlorobenzene (chlorobenzene)

Pennsylvania American Water Company Yardley

Monochlorobenzene is used as a solvent for pesticides, a degreasing agent and an intermediate for manufacturing other chemicals. It causes liver and kidney damage in studies of laboratory animals.

 

35

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND30ND
2020ND70ND
2021ND70ND
2022ND80ND
2023ND70ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 70 ppb

The EWG Health Guideline of 70 ppb for monochlorobenzene 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): 100 ppb

The legal limit for monochlorobenzene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1960s.

ppb = parts per billion

All test results

Date Lab ID Result
2018-04-1139062701ND
2018-08-1440630801ND
2018-08-1440630201ND
2019-04-0443649801ND
2019-08-2245815901ND
2019-08-2245816001ND
2020-01-0621487037.00ND
2020-04-0922005630.00ND
2020-04-0922005609.00ND
2020-07-0922591147.00ND
2020-08-0622780440.00ND
2020-08-0622780461.00ND
2020-10-1223166530.00ND
2021-01-0623695984.00ND
2021-04-0624230994.00ND
2021-04-0624230973.00ND
2021-07-0724812018.00ND
2021-08-0225004502.00ND
2021-08-0225004523.00ND
2021-10-0425387735.00ND
2022-01-0325926364.00ND
2022-03-0926272429.00ND
2022-04-0626447224.00ND
2022-04-0626447249.00ND
2022-07-1227020338.00ND
2022-08-0427216464.00ND
2022-08-0427216419.00ND
2022-10-1327625717.00ND
2023-01-0328156620.00ND
2023-04-1728684434.00ND
2023-04-1728684413.00ND
2023-07-1229285447.00ND
2023-08-0929478515.00ND
2023-08-0929478494.00ND
2023-10-1129870742.00ND