Know Your Environment. Protect Your Health.

Naphthalene

Harris County Municipal Utility District 371

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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND20ND
2020ND10ND
2021ND10ND
2022ND40ND
2023ND20ND

ppb = parts per billion

All test results

Date Lab ID Result
2018-06-26AE31511ND
2019-09-24AE84411ND
2019-09-24AE84474ND
2020-05-08AF10423ND
2021-02-01AF41931ND
2022-04-25AF94258ND
2022-04-25AF94318ND
2022-09-23AG14863ND
2022-12-22AG22801ND
2023-01-26AG26499ND
2023-01-26AG26579ND