Naphthalene
City of Hallettsville
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.
30
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | ND | 6 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 8 | 0 | ND |
| 2022 | ND | 4 | 0 | ND |
| 2023 | ND | 4 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-09-19 | AE40773 | ND |
| 2018-09-19 | AE40775 | ND |
| 2018-09-19 | AE40872 | ND |
| 2018-09-19 | AE40873 | ND |
| 2018-09-19 | AE40874 | ND |
| 2018-09-19 | AE40759 | ND |
| 2019-08-22 | AE80246 | ND |
| 2019-08-22 | AE80356 | ND |
| 2019-08-22 | AE80242 | ND |
| 2019-08-22 | AE80240 | ND |
| 2020-05-19 | AF11753 | ND |
| 2020-05-19 | AF11755 | ND |
| 2020-05-19 | AF11757 | ND |
| 2020-05-19 | AF11773 | ND |
| 2021-06-10 | AF57493 | ND |
| 2021-06-10 | AF57609 | ND |
| 2021-06-10 | AF57601 | ND |
| 2021-06-10 | AF57600 | ND |
| 2021-06-10 | AF57525 | ND |
| 2021-06-10 | AF57491 | ND |
| 2021-07-27 | AF63450 | ND |
| 2021-11-03 | AF75593 | ND |
| 2022-08-04 | AG07869 | ND |
| 2022-08-04 | AG07873 | ND |
| 2022-08-04 | AG07875 | ND |
| 2022-08-04 | AG07973 | ND |
| 2023-03-06 | AG31685 | ND |
| 2023-03-06 | Q2309810001 | ND |
| 2023-03-06 | Q2309810003 | ND |
| 2023-03-06 | Q2309810005 | ND |