Naphthalene
City of Rio Grande City
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.
18
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 | 2 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-02-26 | AC44857 | ND |
| 2014-02-26 | AC44859 | ND |
| 2014-02-26 | AC44785 | ND |
| 2015-09-22 | AD08048 | ND |
| 2015-09-22 | AD08099 | ND |
| 2016-02-22 | AD24853 | ND |
| 2016-02-22 | AD24851 | ND |
| 2016-02-22 | AD24413 | ND |
| 2016-09-16 | AD50127 | ND |
| 2017-03-07 | AD74465 | ND |
| 2017-03-07 | AD74464 | ND |
| 2017-03-07 | AD74392 | ND |
| 2017-08-01 | AD91605 | ND |
| 2018-06-11 | AE29892 | ND |
| 2018-08-31 | AE39197 | ND |
| 2018-08-31 | AE39153 | ND |
| 2019-02-06 | AE53530 | ND |
| 2019-02-06 | AE53629 | ND |