p-Dichlorobenzene
City of Broussard Highway 90 Water System
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 | 24 | 0 | ND |
| 2015 | 0.295 ppb | 4 | 2 | ND - 0.590 ppb |
| 2016 | 0.0917 ppb | 12 | 4 | ND - 0.290 ppb |
| 2017 | ND | 6 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2014-02-17 | AD89082 | ND |
| 2014-02-17 | AD89082 | ND |
| 2014-03-24 | AD89953 | ND |
| 2014-03-24 | AD89952 | ND |
| 2014-03-24 | AD89953 | ND |
| 2014-03-24 | AD89952 | ND |
| 2014-05-05 | AD91181 | ND |
| 2014-05-05 | AD91179 | ND |
| 2014-05-05 | AD91180 | ND |
| 2014-05-05 | AD91181 | ND |
| 2014-05-05 | AD91180 | ND |
| 2014-05-05 | AD91179 | ND |
| 2014-09-15 | AD96936 | ND |
| 2014-09-15 | AD96937 | ND |
| 2014-09-15 | AD96938 | ND |
| 2014-09-15 | AD96936 | ND |
| 2014-09-15 | AD96937 | ND |
| 2014-09-15 | AD96938 | ND |
| 2014-11-17 | AD99809 | ND |
| 2014-11-17 | AD99810 | ND |
| 2014-11-17 | AD99811 | ND |
| 2014-11-17 | AD99809 | ND |
| 2014-11-17 | AD99810 | ND |
| 2014-11-17 | AD99811 | ND |
| 2015-11-30 | 35218949002 | ND |
| 2015-11-30 | 35218949001 | 0.590 ppb |
| 2015-11-30 | 35218949002 | ND |
| 2015-11-30 | 35218949001 | 0.590 ppb |
| 2016-06-07 | 35248530008 | ND |
| 2016-06-07 | 35248530006 | ND |
| 2016-06-07 | 35248530007 | ND |
| 2016-06-07 | 35248530006 | ND |
| 2016-06-07 | 35248530007 | ND |
| 2016-06-07 | 35248530008 | ND |
| 2016-11-01 | 35274958005 | 0.260 ppb |
| 2016-11-01 | 35274958005 | 0.260 ppb |
| 2016-11-01 | 35274958004 | 0.290 ppb |
| 2016-11-01 | 35274958003 | ND |
| 2016-11-01 | 35274958003 | ND |
| 2016-11-01 | 35274958004 | 0.290 ppb |
| 2017-03-03 | 35299127005 | ND |
| 2017-03-03 | 35299127004 | ND |
| 2017-03-03 | 35299127003 | ND |
| 2017-03-03 | 35299127003 | ND |
| 2017-03-03 | 35299127004 | ND |
| 2017-03-03 | 35299127005 | ND |
| 2018-06-12 | 35398353001 | ND |
| 2018-06-12 | 35398353002 | ND |
| 2018-06-12 | 35398353001 | ND |
| 2018-06-12 | 35398353002 | ND |