Know Your Environment. Protect Your Health.

Naphthalene

City of Shavano Park

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.

 

39

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND50ND
2019ND70ND
2020ND60ND
2021ND50ND
2022ND90ND
2023ND70ND

ppb = parts per billion

All test results

Date Lab ID Result
2018-03-02AE16674ND
2018-03-02AE16668ND
2018-03-02AE16783ND
2018-03-02AE16676ND
2018-03-02AE16700ND
2019-04-03AE61108ND
2019-04-03AE61107ND
2019-04-03AE61106ND
2019-04-03AE61047ND
2019-04-03AE61039ND
2019-04-03AE61035ND
2019-04-03AE61029ND
2020-02-24AE99519ND
2020-02-24AE99539ND
2020-02-24AE99541ND
2020-02-24AE99608ND
2020-05-15AF11875ND
2020-05-15AF11951ND
2021-02-23AF44017ND
2021-02-23AF43943ND
2021-02-23AF43941ND
2021-02-23AF43945ND
2021-06-18AF58893ND
2022-03-09AF88501ND
2022-03-09AF88499ND
2022-03-09AF88498ND
2022-03-09AF88412ND
2022-03-09AF88408ND
2022-03-09AF88406ND
2022-03-09AF88394ND
2022-06-21AG01786ND
2022-09-27AG15096ND
2023-03-16AG33423ND
2023-06-22AG45585ND
2023-06-22AG45593ND
2023-06-22AG45601ND
2023-06-22AG45603ND
2023-06-22AG45704ND
2023-06-22AG45705ND