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.

MORE ABOUT THIS CONTAMINANT

Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Range of results
2013	N/A	0	N/A
2014	N/A	0	N/A
2015	N/A	0	N/A
2016	ND	13	ND
2017	N/A	0	N/A
2018	N/A	0	N/A
2019	ND	11	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
2016-03-08	5810-043-1330	ND
2016-03-08	5810-033-0945	ND
2016-03-08	5810-042-1300	ND
2016-03-08	5810-036-1040	ND
2016-03-08	5810-037-1100	ND
2016-03-08	5810-038-1000	ND
2016-03-08	5810-039-0905	ND
2016-03-09	5810-028-1300	ND
2016-03-09	5810-031-1025	ND
2016-03-09	5810-041-0935	ND
2016-03-09	5810-040-1125	ND
2016-03-10	5810-026-1300	ND
2016-03-29	5810-034-0740	ND
2019-03-13	5810-043-0830	ND
2019-03-13	5810-042-1125	ND
2019-03-13	5810-033-1040	ND
2019-03-13	5810-031-1210	ND
2019-03-14	5810-037-1110	ND
2019-03-14	5810-040-0840	ND
2019-03-14	5810-036-1140	ND
2019-03-14	5810-041-0915	ND
2019-03-14	5810-034-1040	ND
2019-03-14	5810-028-1005	ND
2019-05-09	5810-039-1100	ND