Naphthalene
City of Houston Willow Chase
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.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | N/A | 0 | 0 | N/A |
2015 | ND | 7 | 0 | ND |
2016 | ND | 5 | 0 | ND |
2017 | ND | 4 | 0 | ND |
2018 | ND | 7 | 0 | ND |
2019 | ND | 5 | 0 | ND |
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2015-05-29 | AC93937 | ND |
2015-05-29 | AC93940 | ND |
2015-05-29 | AC93939 | ND |
2015-05-29 | AC93893 | ND |
2015-05-29 | AC93899 | ND |
2015-05-29 | AC93891 | ND |
2015-05-29 | AC93875 | ND |
2016-03-03 | AD27013 | ND |
2016-03-03 | AD26935 | ND |
2016-03-03 | AD26933 | ND |
2016-03-03 | AD26925 | ND |
2016-03-03 | AD26929 | ND |
2017-03-02 | AD73126 | ND |
2017-03-02 | AD73122 | ND |
2017-05-31 | AD86149 | ND |
2017-05-31 | AD86147 | ND |
2018-04-11 | AE22129 | ND |
2018-04-11 | AE22133 | ND |
2018-04-11 | AE22132 | ND |
2018-04-11 | AE22081 | ND |
2018-04-11 | AE22085 | ND |
2018-04-11 | AE22055 | ND |
2018-04-11 | AE22057 | ND |
2019-02-28 | AE56614 | ND |
2019-02-28 | AE56582 | ND |
2019-02-28 | AE56580 | ND |
2019-02-28 | AE56578 | ND |
2019-05-20 | AE67245 | ND |