Know Your Environment. Protect Your Health.

Naphthalene

West Harris County Municipal Utility District 11

Naphthalene is a polycyclic aromatic hydrocarbon, or PAH, released from combustion of fossil fuels and waste incinerators, and also used as a moth repellent. PAHs increase the risk of cancer; damage the immune, nervous and reproductive systems; and can harm developing fetuses.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND10ND
2020ND30ND
2021ND20ND
2022ND10ND
2023ND30ND

ppb = parts per billion

All test results

Date Lab ID Result
2018-01-29AE10992ND
2018-01-29AE11100ND
2019-02-20AE55057ND
2020-06-17AF15824ND
2020-06-17AF15826ND
2020-06-17AF15916ND
2021-07-27AF63558ND
2021-07-27AF63621ND
2022-06-29AG02823ND
2023-05-18AG41120ND
2023-05-18AG41122ND
2023-05-18AG41182ND