Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Dibromoacetic acid

City of Cambridge

Dibromoacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

MORE ABOUT THIS CONTAMINANT

 

92

Samples

0

Samples exceeding legal limit (MCL)

9

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.0688 ppb161ND - 1.10 ppb
20150.0625 ppb161ND - 1.000 ppb
20160.488 ppb165ND - 1.80 ppb
2017ND160ND
20180.0688 ppb161ND - 1.10 ppb
20190.468 ppb121ND - 5.62 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.04 ppb

The EWG Health Guideline of 0.04 ppb for dibromoacetic acid was defined in a peer-reviewed scientific study by EWG and represents a on-in-a-million lifetime cancer risk level. This health guideline protects against cancer.

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-04902063ND
2014-02-04902062ND
2014-02-04902061ND
2014-02-04902064ND
2014-05-06905099ND
2014-05-06905100ND
2014-05-06905101ND
2014-05-06905102ND
2014-08-06908054ND
2014-08-06908055ND
2014-08-06908056ND
2014-08-06908057ND
2014-11-05911063ND
2014-11-05911062ND
2014-11-05911061ND
2014-11-059110641.10 ppb
2015-02-03102052ND
2015-02-031020511.000 ppb
2015-02-03102050ND
2015-02-03102053ND
2015-05-05105110ND
2015-05-05105111ND
2015-05-05105112ND
2015-05-07105109ND
2015-08-06108098ND
2015-08-06108100ND
2015-08-06108101ND
2015-08-06108099ND
2015-11-03111067ND
2015-11-03111066ND
2015-11-03111065ND
2015-11-03111068ND
2016-02-02202069ND
2016-02-02202070ND
2016-02-02202071ND
2016-02-02202072ND
2016-05-0316-16411-02ND
2016-05-0316-16411-01ND
2016-05-0316-16411-04ND
2016-05-0316-16411-03ND
2016-08-0216-22138-04ND
2016-08-0216-22138-011.40 ppb
2016-08-0216-22138-02ND
2016-08-0216-22138-03ND
2016-11-0716-29036-031.60 ppb
2016-11-0716-29036-021.70 ppb
2016-11-0716-29036-041.30 ppb
2016-11-0716-29036-011.80 ppb
2017-02-0717-12210-01ND
2017-02-0717-12210-02ND
2017-02-0717-12210-03ND
2017-02-0717-12210-04ND
2017-05-0217-17675-01ND
2017-05-0217-17675-02ND
2017-05-0217-17675-03ND
2017-05-0217-17675-04ND
2017-08-0717-25015-04ND
2017-08-0717-25015-03ND
2017-08-0717-25015-02ND
2017-08-0717-25015-01ND
2017-11-0717-31699-01ND
2017-11-0717-31699-02ND
2017-11-0717-31699-03ND
2017-11-0717-31699-04ND
2018-02-06M18-12751-04ND
2018-02-06M18-12751-03ND
2018-02-06M18-12751-02ND
2018-02-07M18-12751-01ND
2018-05-0118-18101-01ND
2018-05-0118-18101-02ND
2018-05-0118-18101-03ND
2018-05-0118-18101-04ND
2018-08-0718-26645-02ND
2018-08-0718-26645-04ND
2018-08-0718-26645-03ND
2018-08-0718-26645-011.10 ppb
2018-11-0618-34405-03ND
2018-11-0618-34405-04ND
2018-11-0618-34405-01ND
2018-11-0618-34405-02ND
2019-02-0519-12501-03ND
2019-02-0519-12501-04ND
2019-02-0519-12501-02ND
2019-02-0519-12501-01ND
2019-05-0719051212ND
2019-05-0719051213ND
2019-05-0719051214ND
2019-05-0719051215ND
2019-08-06190807485.62 ppb
2019-08-0619080749ND
2019-08-0619080750ND
2019-08-0619080751ND