Know Your Environment. Protect Your Health.

Naphthalene

Northwest Harris County Municipal Utility District 19

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.

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND40ND
2020ND30ND
2021ND30ND
2022ND40ND
2023ND30ND

ppb = parts per billion

All test results

Date Lab ID Result
2018-05-17AE26823ND
2018-05-17AE26875ND
2018-05-17AE26819ND
2019-11-07AE88931ND
2019-11-07AE88937ND
2019-11-07AE88977ND
2019-11-07AE88978ND
2020-10-01AF29290ND
2020-10-01AF29300ND
2020-12-15AF37738ND
2021-06-10AF57515ND
2021-06-10AF57598ND
2021-06-10AF57537ND
2022-05-17AF97248ND
2022-05-17AF97250ND
2022-05-17AF97326ND
2022-05-17AF97336ND
2023-07-20AG49615ND
2023-07-20AG49637ND
2023-07-20AG49701ND