p-Dichlorobenzene
City of Ridgeland
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 |
|---|---|---|---|---|
| 2014 | ND | 1 | 0 | ND |
| 2015 | ND | 6 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 5 | 0 | ND |
| 2019 | ND | 5 | 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 |
|---|---|---|
| 2014-06-23 | 140624-002VO | ND |
| 2015-07-28 | 150729-005VO | ND |
| 2015-08-31 | 150901-018VO | ND |
| 2015-08-31 | 150901-017VO | ND |
| 2015-08-31 | 150901-016VO | ND |
| 2015-08-31 | 150901-012VO | ND |
| 2015-08-31 | 150901-011VO | ND |
| 2016-07-18 | 160719-021VO | ND |
| 2016-09-26 | 160927-008VO | ND |
| 2017-08-28 | 170829-010VO | ND |
| 2018-02-05 | 180206-003VO | ND |
| 2018-05-01 | 180502-002VO | ND |
| 2018-07-16 | 180717-001VO | ND |
| 2018-08-13 | 180814-006VO | ND |
| 2018-10-23 | 181024-006VO | ND |
| 2019-03-11 | 190312-009VO | ND |
| 2019-05-06 | 190507-005VO | ND |
| 2019-07-15 | 190716-012VO | ND |
| 2019-09-09 | 190910-001VO | ND |
| 2019-11-04 | 191105-007VO | ND |