p-Dichlorobenzene
City of Hanford
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 |
|---|---|---|---|---|
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | ND | 11 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | ND | 10 | 0 | ND |
| 2023 | ND | 2 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
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 |
|---|---|---|
| 2019-03-13 | CA1610003_043_043-201903130830 | ND |
| 2019-03-13 | CA1610003_031_031-201903131210 | ND |
| 2019-03-13 | CA1610003_033_033-201903131040 | ND |
| 2019-03-13 | CA1610003_042_042-201903131125 | ND |
| 2019-03-14 | CA1610003_036_036-201903141140 | ND |
| 2019-03-14 | CA1610003_037_037-201903141110 | ND |
| 2019-03-14 | CA1610003_028_028-201903141005 | ND |
| 2019-03-14 | CA1610003_034_034-201903141040 | ND |
| 2019-03-14 | CA1610003_040_040-201903140840 | ND |
| 2019-03-14 | CA1610003_041_041-201903140915 | ND |
| 2019-05-09 | CA1610003_039_039-201905091100 | ND |
| 2020-05-14 | CA1610003_044_044-202005141100 | ND |
| 2022-03-30 | CA1610003_036_036-202203300920 | ND |
| 2022-03-30 | CA1610003_034_034-202203300825 | ND |
| 2022-03-30 | CA1610003_042_042-202203301035 | ND |
| 2022-03-30 | CA1610003_031_031-202203301050 | ND |
| 2022-03-30 | CA1610003_041_041-202203300935 | ND |
| 2022-03-30 | CA1610003_037_037-202203300835 | ND |
| 2022-03-31 | CA1610003_028_028-202203310845 | ND |
| 2022-03-31 | CA1610003_040_040-202203310855 | ND |
| 2022-05-17 | CA1610003_039_039-202205170930 | ND |
| 2022-08-25 | CA1610003_033_033-202208250830 | ND |
| 2023-05-03 | CA1610003_043_043-202305030930 | ND |
| 2023-05-18 | CA1610003_044_044-202305181000 | ND |