Know Your Environment. Protect Your Health.

Naphthalene

Northwest Harris County Municipal Utility District 24

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.

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

ppb = parts per billion

All test results

Date Lab ID Result
2018-08-14AE36931ND
2019-08-13AE78654ND
2019-08-13AE78743ND
2020-06-10AF14828ND
2020-06-10AF14921ND
2020-09-14AF27236ND
2021-09-21AF70647ND
2021-09-21AF70693ND
2022-08-24AG10831ND
2022-08-24AG10907ND
2023-08-03AG51340ND
2023-08-03AG51407ND
2023-11-17AG64241ND