Bromoform

Metro Topeka Airport Authority

Bromoform, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromoform 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

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	0.307 ppb	3	2	ND - 0.680 ppb
2015	0.150 ppb	4	1	ND - 0.600 ppb
2016	0.155 ppb	4	1	ND - 0.620 ppb
2017	0.203 ppb	4	1	ND - 0.810 ppb
2018	1.39 ppb	4	2	ND - 4.80 ppb
2019	0.210 ppb	4	1	ND - 0.840 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.5 ppb

The EWG Health Guideline of 0.5 ppb for bromoform was proposed in 2018 by the California Office of Environmental Health Hazard Assessment as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

ppb = parts per billion

All test results

Date	Lab ID	Result
2014-02-10	53067	ND
2014-05-06	109062	0.240 ppb
2014-08-18	173533	0.680 ppb
2015-01-06	254706	ND
2015-04-21	315843	ND
2015-07-20	368145	ND
2015-10-20	419727	0.600 ppb
2016-01-04	467846	ND
2016-04-13	526703	0.620 ppb
2016-08-03	593587	ND
2016-10-11	640297	ND
2017-01-08	678947	ND
2017-04-17	742317	ND
2017-08-01	807324	ND
2017-10-03	850782	0.810 ppb
2018-01-16	906787	0.750 ppb
2018-04-16	937549	ND
2018-07-16	1005579	4.80 ppb
2018-10-15	1060288	ND
2019-01-15	1104848	ND
2019-04-15	1137919	0.840 ppb
2019-07-22	1206903	ND
2019-10-15	1258883	ND