p-Dichlorobenzene
City of Porterville
p-Dichlorobenzene is a carcinogenic insecticide used in mothballs, and added to deodorant blocks made for trash cans and toilets. Long-term exposure can cause liver damage and kidney problems.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 33 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 34 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 6 ppb
The EWG Health Guideline of 6 ppb for p-dichlorobenzene was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.
EPA Maximum Contaminant
Level (MCL) 75 ppb
The legal limit for p-dichlorobenzene, established in 1987, was based on toxicity studies conducted in laboratory animals in the 1980s. This limit may not fully protect against the risk of cancer due to p-dichlorobenzene exposure.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-03-24 | 1653-039-1030 | ND |
| 2014-03-24 | 1653-018-1400 | ND |
| 2014-03-24 | 1653-019-1235 | ND |
| 2014-03-24 | 1653-020-1010 | ND |
| 2014-03-24 | 1653-021-1130 | ND |
| 2014-03-24 | 1653-013-1305 | ND |
| 2014-03-24 | 1653-008-1335 | ND |
| 2014-03-24 | 1653-033-0945 | ND |
| 2014-03-24 | 1653-005-1415 | ND |
| 2014-03-24 | 1653-056-1105 | ND |
| 2014-03-27 | 1653-003-1350 | ND |
| 2014-03-27 | 1653-049-1005 | ND |
| 2014-03-27 | 1653-079-1225 | ND |
| 2014-03-27 | 1653-096-0940 | ND |
| 2014-03-27 | 1653-082-1325 | ND |
| 2014-03-27 | 1653-086-1255 | ND |
| 2014-03-27 | 1653-088-1055 | ND |
| 2014-03-27 | 1653-022-1125 | ND |
| 2014-05-13 | 1653-096-1028 | ND |
| 2014-05-13 | 1653-092-1055 | ND |
| 2014-05-13 | 1653-090-1000 | ND |
| 2014-05-13 | 1653-014-1210 | ND |
| 2014-05-13 | 1653-026-1255 | ND |
| 2014-05-13 | 1653-037-1330 | ND |
| 2014-05-14 | 1653-010-1033 | ND |
| 2014-05-14 | 1653-025-0958 | ND |
| 2014-05-14 | 1653-024-1237 | ND |
| 2014-05-14 | 1653-032-1339 | ND |
| 2014-05-14 | 1653-054-0926 | ND |
| 2014-05-15 | 1653-023-0935 | ND |
| 2014-05-15 | 1653-009-1205 | ND |
| 2014-05-15 | 1653-006-1100 | ND |
| 2014-05-15 | 1653-040-1315 | ND |
| 2015-12-09 | 1653-100-0915 | ND |
| 2016-03-11 | 1653-098-0916 | ND |
| 2017-03-15 | 1653-005-1404 | ND |
| 2017-03-15 | 1653-022-1344 | ND |
| 2017-03-15 | 1653-049-1034 | ND |
| 2017-03-15 | 1653-039-0851 | ND |
| 2017-03-15 | 1653-082-1327 | ND |
| 2017-03-15 | 1653-086-1158 | ND |
| 2017-03-15 | 1653-096-1009 | ND |
| 2017-03-15 | 1653-021-0943 | ND |
| 2017-03-15 | 1653-020-0827 | ND |
| 2017-03-15 | 1653-019-0920 | ND |
| 2017-03-15 | 1653-008-1449 | ND |
| 2017-03-15 | 1653-003-1426 | ND |
| 2017-03-16 | 1653-100-1454 | ND |
| 2017-03-16 | 1653-024-1020 | ND |
| 2017-03-16 | 1653-025-1059 | ND |
| 2017-03-16 | 1653-033-1413 | ND |
| 2017-03-16 | 1653-018-1154 | ND |
| 2017-03-16 | 1653-013-1225 | ND |
| 2017-03-16 | 1653-056-1341 | ND |
| 2017-03-16 | 1653-079-1303 | ND |
| 2017-03-16 | 1653-088-0938 | ND |
| 2017-03-16 | 1653-098-0917 | ND |
| 2017-03-20 | 5867-100-0815 | ND |
| 2017-05-10 | 1653-010-1204 | ND |
| 2017-05-10 | 1653-014-0958 | ND |
| 2017-05-10 | 1653-009-0926 | ND |
| 2017-05-10 | 1653-006-1345 | ND |
| 2017-05-10 | 1653-054-1446 | ND |
| 2017-05-10 | 1653-023-1027 | ND |
| 2017-05-10 | 1653-092-0859 | ND |
| 2017-05-10 | 1653-090-1103 | ND |
| 2017-05-10 | 1653-026-0841 | ND |
| 2017-05-10 | 1653-032-1136 | ND |
| 2017-05-11 | 1653-040-1257 | ND |
| 2018-02-14 | 1653-098-1408 | ND |
| 2018-02-14 | 1653-100-1431 | ND |
| 2018-03-07 | 1653-100-1036 | ND |
| 2018-03-07 | 1653-098-1112 | ND |
| 2019-02-28 | 1653-100-0821 | ND |
| 2019-02-28 | 1653-098-1044 | ND |