Know Your Environment. Protect Your Health.

Xylenes (total)

North Slope Borough - Point Hope

Xylenes are solvents used in industrial and consumer products, such as cleaning agents and paint thinners. Xylenes cause nervous system damage and may harm developing fetuses.

 

6

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.350 ppb21ND - 0.700 ppb
2019N/A00N/A
202070.0 ppb1170.0 ppb
20216.10 ppb116.10 ppb
20227.90 ppb117.90 ppb
202313.0 ppb1113.0 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 1,800 ppb

The EWG Health Guideline of 1,800 ppb for xylenes 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 the brain and nervous system.

EPA Maximum Contaminant
Level (MCL): 10,000 ppb

The legal limit for xylenes, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1980s. This limit may not fully protect against harm to the brain and nervous system due to xylene exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2018-01-11VO*38559250.700 ppb
2018-07-26VO*4009253ND
2020-01-23455243370.0 ppb
2021-01-2148235266.10 ppb
2022-01-11810-12202-37.90 ppb
2023-01-05810-49930-A-113.0 ppb