Naphthalene
Harris County Water Control and Improvement District 70
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.
19
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 |
|---|---|---|---|---|
| 2014 | ND | 1 | 0 | ND |
| 2015 | ND | 2 | 0 | ND |
| 2016 | ND | 6 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-10-21 | AC70138 | ND |
| 2015-04-29 | AC89862 | ND |
| 2015-04-29 | AC89850 | ND |
| 2016-03-30 | AD31310 | ND |
| 2016-03-30 | AD31331 | ND |
| 2016-03-30 | AD31180 | ND |
| 2016-03-30 | AD31206 | ND |
| 2016-09-27 | AD51569 | ND |
| 2016-11-22 | AD59089 | ND |
| 2017-05-05 | AD83185 | ND |
| 2017-05-05 | AD83126 | ND |
| 2017-05-05 | AD83124 | ND |
| 2018-03-09 | AE18026 | ND |
| 2018-03-09 | AE17890 | ND |
| 2018-03-09 | AE17920 | ND |
| 2019-05-09 | AE65729 | ND |
| 2019-05-09 | AE65791 | ND |
| 2019-05-09 | AE65792 | ND |
| 2019-05-09 | AE65723 | ND |