Know Your Environment. Protect Your Health.

Naphthalene

Harris County Municipal Utility District 189

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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

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

ppb = parts per billion

All test results

Date Lab ID Result
2018-05-17AE26817ND
2018-05-17AE26821ND
2018-05-17AE26873ND
2018-05-17AE26874ND
2019-07-08AE73468ND
2019-07-08AE73470ND
2020-06-23AF16542ND
2020-06-23AF16548ND
2021-10-14AF73563ND
2022-04-05AF92017ND
2023-07-20AG49613ND
2023-10-12AG59736ND
2023-10-12AG59773ND
2023-11-02AG62177ND