Know Your Environment. Protect Your Health.

Naphthalene

City of Castroville

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
2018-03-28AE20680ND
2018-03-28AE20731ND
2018-03-28AE20664ND
2019-06-18AE71110ND
2019-06-18AE71116ND
2019-06-18AE71220ND
2019-06-18AE71225ND
2020-01-28AE95679ND
2020-01-28AE95685ND
2020-01-28AE95805ND
2021-06-28AF59673ND
2021-06-28AF59761ND
2021-06-28AF59675ND
2022-02-08AF83711ND
2022-02-08AF83715ND
2022-02-08AF83794ND
2022-02-08AF83796ND
2023-03-28AG34417ND
2023-03-28AG34419ND
2023-03-28AG34540ND