Know Your Environment. Protect Your Health.

Toluene

North Wales Water Authority

Toluene is a volatile solvent that harms the nervous and immune systems, damages the liver and may increase the risk of miscarriage and birth defects. Read More.

Toluene is a petroleum-derived chemical found in gasoline and used as a solvent in paints, adhesives and cleaning supplies. Toluene is highly neurotoxic. Exposure can cause fatigue and nausea, and may lead to nervous system disorders.

 

69

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND130ND
2019ND120ND
2020ND120ND
2021ND110ND
2022ND110ND
2023ND100ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 150 ppb

The EWG Health Guideline of 150 ppb for toluene 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): 1,000 ppb

The legal limit for toluene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1980s.

ppb = parts per billion

All test results

Date Lab ID Result
2018-03-1220180932ND
2018-03-1220180940ND
2018-03-1220180939ND
2018-03-1220180938ND
2018-03-1220180937ND
2018-03-1220180936ND
2018-03-1220180935ND
2018-03-1220180934ND
2018-03-1220180933ND
2018-03-1320180956ND
2018-06-0520182148ND
2018-09-0420183373ND
2018-12-1820184775ND
2019-03-0520190857ND
2019-03-1220190960ND
2019-03-1220190956ND
2019-03-1220190964ND
2019-03-1220190957ND
2019-03-1220190963ND
2019-03-1220190962ND
2019-03-1220190958ND
2019-03-1220190961ND
2019-03-1220190959ND
2019-09-0320193443ND
2019-12-0320194748ND
2020-03-0321849477.00ND
2020-03-0321849456.00ND
2020-03-0321849435.00ND
2020-03-0321849498.00ND
2020-03-0321849519.00ND
2020-03-0321849540.00ND
2020-03-0321849414.00ND
2020-03-0321849561.00ND
2020-06-0222418590.00ND
2020-06-0222418611.00ND
2020-09-0123001545.00ND
2020-12-0123539419.00ND
2021-03-0124062320.00ND
2021-03-0124062404.00ND
2021-03-0124062278.00ND
2021-03-0124062383.00ND
2021-03-0124062362.00ND
2021-03-0124062341.00ND
2021-03-0124062299.00ND
2021-03-0224062425.00ND
2021-06-0124640238.00ND
2021-09-0925222357.00ND
2021-12-1425766387.00ND
2022-03-0126289341.00ND
2022-03-0926289257.00ND
2022-03-0926289320.00ND
2022-03-0926289299.00ND
2022-03-0926289194.00ND
2022-03-0926289236.00ND
2022-03-0926289215.00ND
2022-03-0926289278.00ND
2022-06-0726844670.00ND
2022-09-2027443462.00ND
2022-12-0628000368.00ND
2023-03-0728523020.00ND
2023-03-0828522957.00ND
2023-03-0828522915.00ND
2023-03-0828522999.00ND
2023-03-0828522978.00ND
2023-03-0828522936.00ND
2023-06-0529110416.00ND
2023-06-1929110365.00ND
2023-09-1229701916.00ND
2023-11-1730073318.00ND