Naphthalene
City of Tomball
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.
13
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 | 3 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-01-13 | AC38539 | ND |
| 2014-01-13 | AC38535 | ND |
| 2014-01-13 | AC38653 | ND |
| 2015-01-28 | AC78172 | ND |
| 2016-04-13 | AD33033 | ND |
| 2016-04-13 | AD33073 | ND |
| 2017-02-02 | AD68445 | ND |
| 2017-02-02 | AD68447 | ND |
| 2017-02-02 | AD68523 | ND |
| 2017-02-02 | AD68524 | ND |
| 2018-02-12 | AE13312 | ND |
| 2019-05-16 | AE66887 | ND |
| 2019-05-16 | AE66979 | ND |