Dibromochloromethane
Pittsburgh Water & Sewer Authority
Dibromochloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Dibromochloromethane and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | 13.5 ppb | 50 | 50 | 4.20 ppb - 50.0 ppb |
2015 | 10.7 ppb | 51 | 51 | 6.00 ppb - 25.5 ppb |
2016 | 10.9 ppb | 48 | 48 | 2.40 ppb - 26.9 ppb |
2017 | 8.96 ppb | 48 | 48 | 1.80 ppb - 18.0 ppb |
2018 | 7.23 ppb | 48 | 48 | 2.00 ppb - 19.6 ppb |
2019 | 5.85 ppb | 48 | 48 | 2.66 ppb - 12.2 ppb |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.1 ppb
The EWG Health Guideline of 0.1 ppb for dibromochloromethane 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 |
---|---|---|
2014-02-03 | 1071415005 | 6.80 ppb |
2014-02-03 | 1071415012 | 8.70 ppb |
2014-02-03 | 1071415001 | 7.50 ppb |
2014-02-03 | 1071415006 | 6.80 ppb |
2014-02-03 | 1071415008 | 6.10 ppb |
2014-02-03 | 1071415003 | 6.60 ppb |
2014-02-03 | 1071415004 | 6.30 ppb |
2014-02-03 | 1071415010 | 7.60 ppb |
2014-02-03 | 1071415002 | 6.70 ppb |
2014-02-03 | 1071415009 | 6.30 ppb |
2014-02-03 | 1071415007 | 6.20 ppb |
2014-02-03 | 1071415011 | 4.20 ppb |
2014-05-12 | 2006707007 | 8.10 ppb |
2014-05-12 | 2006707002 | 7.40 ppb |
2014-05-12 | 2006707009 | 9.10 ppb |
2014-05-12 | 2006707012 | 9.80 ppb |
2014-05-12 | 2006707005 | 9.00 ppb |
2014-05-12 | 2006707006 | 7.50 ppb |
2014-05-12 | 2006707004 | 9.20 ppb |
2014-05-12 | 2006707001 | 7.40 ppb |
2014-05-12 | 2006707011 | 10.8 ppb |
2014-05-12 | 2006707008 | 8.40 ppb |
2014-05-12 | 2006707003 | 9.40 ppb |
2014-05-12 | 2006707010 | 9.70 ppb |
2014-08-01 | 2021780007 | 20.2 ppb |
2014-08-01 | 2021780002 | 13.1 ppb |
2014-08-01 | 2021780009 | 21.8 ppb |
2014-08-01 | 2021780012 | 12.6 ppb |
2014-08-01 | 2021780005 | 20.1 ppb |
2014-08-01 | 2021780006 | 12.9 ppb |
2014-08-01 | 2021780004 | 21.5 ppb |
2014-08-01 | 2021780001 | 17.5 ppb |
2014-08-01 | 2021780011 | 21.2 ppb |
2014-08-01 | 2021780008 | 17.5 ppb |
2014-08-01 | 2021780003 | 20.5 ppb |
2014-08-01 | 2021780010 | 20.1 ppb |
2014-08-18 | 2024501001 | 25.6 ppb |
2014-08-18 | 2024501002 | 19.9 ppb |
2014-11-03 | 11140081 | 17.0 ppb |
2014-11-03 | 11140072 | 13.0 ppb |
2014-11-03 | 11140079 | 17.0 ppb |
2014-11-03 | 11140075 | 50.0 ppb |
2014-11-03 | 11140078 | 16.0 ppb |
2014-11-03 | 11140071 | 11.0 ppb |
2014-11-03 | 11140080 | 12.0 ppb |
2014-11-03 | 11140076 | 18.0 ppb |
2014-11-03 | 11140077 | 15.0 ppb |
2014-11-03 | 11140074 | 15.0 ppb |
2014-11-03 | 11140073 | 28.0 ppb |
2014-11-04 | 11140263 | 15.0 ppb |
2015-01-29 | 12344323 | 8.70 ppb |
2015-01-29 | 12344273 | 8.43 ppb |
2015-01-29 | 12344313 | 8.03 ppb |
2015-01-29 | 12344283 | 8.24 ppb |
2015-01-29 | 12344308 | 8.40 ppb |
2015-01-29 | 12344268 | 7.04 ppb |
2015-01-29 | 12344293 | 8.26 ppb |
2015-01-29 | 12344318 | 8.62 ppb |
2015-01-29 | 12344288 | 9.45 ppb |
2015-01-29 | 12344303 | 8.59 ppb |
2015-01-29 | 12344298 | 7.69 ppb |
2015-01-29 | 12344278 | 25.5 ppb |
2015-03-09 | 12572670 | 12.0 ppb |
2015-03-11 | 12572668 | 9.00 ppb |
2015-03-12 | 12572669 | 8.00 ppb |
2015-04-29 | 12691777 | 6.00 ppb |
2015-04-29 | 12691783 | 6.00 ppb |
2015-04-29 | 12691789 | 7.00 ppb |
2015-04-29 | 12691795 | 6.00 ppb |
2015-04-29 | 12691801 | 7.00 ppb |
2015-04-29 | 12691807 | 6.00 ppb |
2015-04-29 | 12691819 | 6.00 ppb |
2015-04-29 | 12691825 | 7.00 ppb |
2015-04-29 | 12691831 | 7.00 ppb |
2015-04-29 | 12691837 | 7.00 ppb |
2015-04-29 | 12691843 | 7.00 ppb |
2015-04-30 | 12691813 | 7.00 ppb |
2015-07-29 | 13074846 | 10.3 ppb |
2015-07-29 | 13074856 | 11.8 ppb |
2015-07-29 | 13074876 | 9.00 ppb |
2015-07-29 | 13074881 | 10.8 ppb |
2015-07-29 | 13074871 | 10.9 ppb |
2015-07-29 | 13074841 | 10.2 ppb |
2015-07-29 | 13074851 | 10.5 ppb |
2015-07-29 | 13074886 | 10.00 ppb |
2015-07-29 | 13074866 | 11.4 ppb |
2015-07-29 | 13074861 | 10.00 ppb |
2015-07-29 | 13074891 | 10.5 ppb |
2015-07-30 | 13197732 | 12.5 ppb |
2015-11-02 | 13572996 | 14.9 ppb |
2015-11-02 | 13573036 | 16.0 ppb |
2015-11-02 | 13573013 | 14.7 ppb |
2015-11-02 | 13573019 | 10.9 ppb |
2015-11-02 | 13572990 | 10.5 ppb |
2015-11-02 | 13573030 | 17.7 ppb |
2015-11-03 | 13573025 | 19.9 ppb |
2015-11-03 | 13573054 | 16.5 ppb |
2015-11-03 | 13573007 | 15.8 ppb |
2015-11-03 | 13573048 | 24.5 ppb |
2015-11-03 | 13573002 | 15.6 ppb |
2015-11-03 | 13573042 | 17.0 ppb |
2016-02-01 | 13812287 | 4.70 ppb |
2016-02-01 | 13812227 | 3.80 ppb |
2016-02-01 | 13812245 | 4.10 ppb |
2016-02-01 | 13812251 | 4.20 ppb |
2016-02-01 | 13812281 | 2.40 ppb |
2016-02-01 | 13812257 | 3.00 ppb |
2016-02-01 | 13812239 | 4.00 ppb |
2016-02-01 | 13812293 | 4.20 ppb |
2016-02-01 | 13812233 | 3.30 ppb |
2016-02-02 | 13812263 | 5.30 ppb |
2016-02-02 | 13812275 | 3.60 ppb |
2016-02-02 | 13812269 | 3.60 ppb |
2016-05-02 | 14327818 | 7.40 ppb |
2016-05-02 | 14327842 | 8.90 ppb |
2016-05-02 | 14327872 | 6.30 ppb |
2016-05-02 | 14327854 | 4.80 ppb |
2016-05-02 | 14327860 | 6.70 ppb |
2016-05-02 | 14327866 | 5.20 ppb |
2016-05-02 | 14327878 | 6.90 ppb |
2016-05-02 | 14327830 | 5.40 ppb |
2016-05-02 | 14327848 | 4.90 ppb |
2016-05-02 | 14327824 | 7.10 ppb |
2016-05-02 | 14387822 | 6.90 ppb |
2016-05-02 | 14327836 | 5.90 ppb |
2016-08-01 | 14820947 | 25.9 ppb |
2016-08-01 | 14820983 | 23.8 ppb |
2016-08-01 | 14820953 | 17.2 ppb |
2016-08-01 | 14820965 | 22.9 ppb |
2016-08-01 | 14820995 | 16.3 ppb |
2016-08-01 | 14820971 | 18.9 ppb |
2016-08-01 | 14820941 | 25.9 ppb |
2016-08-01 | 14820959 | 17.8 ppb |
2016-08-01 | 14821007 | 26.9 ppb |
2016-08-01 | 14821001 | 22.3 ppb |
2016-08-01 | 14820989 | 23.8 ppb |
2016-08-01 | 14820977 | 25.4 ppb |
2016-10-31 | 15152895 | 14.7 ppb |
2016-10-31 | 15152859 | 10.9 ppb |
2016-10-31 | 15152883 | 8.50 ppb |
2016-10-31 | 15152877 | 11.1 ppb |
2016-10-31 | 15152907 | 11.8 ppb |
2016-10-31 | 15152865 | 6.00 ppb |
2016-10-31 | 15152913 | 5.20 ppb |
2016-10-31 | 15152919 | 16.8 ppb |
2016-10-31 | 15152871 | 12.7 ppb |
2016-10-31 | 15152889 | 11.4 ppb |
2016-10-31 | 15152901 | 9.50 ppb |
2016-11-01 | 15152853 | 12.5 ppb |
2017-02-03 | 15722376 | 3.30 ppb |
2017-02-03 | 15722418 | 3.00 ppb |
2017-02-03 | 15722424 | 2.40 ppb |
2017-02-03 | 15722388 | 3.50 ppb |
2017-02-03 | 15722368 | 2.90 ppb |
2017-02-03 | 15722406 | 2.20 ppb |
2017-02-03 | 15722394 | 2.00 ppb |
2017-02-03 | 15722400 | 2.80 ppb |
2017-02-03 | 15722412 | 2.30 ppb |
2017-02-03 | 15722364 | 2.10 ppb |
2017-02-03 | 15722382 | 1.80 ppb |
2017-02-15 | 15722357 | 2.80 ppb |
2017-05-02 | 16016240 | 4.00 ppb |
2017-05-02 | 16016233 | 3.00 ppb |
2017-05-02 | 16016230 | 4.00 ppb |
2017-05-02 | 16016238 | 5.00 ppb |
2017-05-02 | 16016237 | 4.00 ppb |
2017-05-02 | 16016236 | 4.00 ppb |
2017-05-02 | 16016239 | 4.00 ppb |
2017-05-02 | 16016229 | 5.00 ppb |
2017-05-02 | 16016232 | 4.00 ppb |
2017-05-02 | 16016235 | 4.00 ppb |
2017-05-02 | 16016234 | 4.00 ppb |
2017-05-03 | 16016231 | 4.00 ppb |
2017-08-01 | 16644485 | 15.0 ppb |
2017-08-01 | 16644461 | 16.0 ppb |
2017-08-01 | 16644497 | 11.0 ppb |
2017-08-01 | 16644514 | 12.0 ppb |
2017-08-01 | 16644449 | 16.0 ppb |
2017-08-01 | 16644479 | 11.0 ppb |
2017-08-01 | 16644473 | 15.0 ppb |
2017-08-01 | 16644455 | 12.0 ppb |
2017-08-01 | 16644509 | 15.0 ppb |
2017-08-01 | 16644491 | 17.0 ppb |
2017-08-01 | 16644467 | 14.0 ppb |
2017-08-01 | 16644503 | 14.0 ppb |
2017-11-01 | 17090630 | 17.0 ppb |
2017-11-01 | 17090648 | 14.0 ppb |
2017-11-01 | 17090654 | 12.0 ppb |
2017-11-01 | 17090660 | 16.0 ppb |
2017-11-01 | 17090666 | 13.0 ppb |
2017-11-01 | 17090672 | 16.0 ppb |
2017-11-02 | 17090636 | 17.0 ppb |
2017-11-02 | 17090642 | 14.0 ppb |
2017-11-02 | 17091655 | 18.0 ppb |
2017-11-02 | 17090678 | 18.0 ppb |
2017-11-02 | 17090684 | 14.0 ppb |
2017-11-02 | 17090690 | 13.0 ppb |
2018-02-02 | 02180209 | 3.00 ppb |
2018-02-02 | 02180205 | 3.00 ppb |
2018-02-02 | 02180211 | 2.00 ppb |
2018-02-02 | 02180214 | 2.00 ppb |
2018-02-02 | 02180203 | 2.00 ppb |
2018-02-02 | 02180208 | 2.00 ppb |
2018-02-02 | 02180207 | 2.00 ppb |
2018-02-02 | 02180204 | 3.00 ppb |
2018-02-02 | 02180213 | 3.00 ppb |
2018-02-02 | 02180210 | 2.00 ppb |
2018-02-02 | 02180206 | 2.00 ppb |
2018-02-02 | 02180212 | 3.00 ppb |
2018-05-01 | 18E0088-04 | 3.86 ppb |
2018-05-01 | 18E0088-02 | 4.20 ppb |
2018-05-01 | 18E0088-07 | 3.34 ppb |
2018-05-01 | 18E0088-03 | 4.02 ppb |
2018-05-01 | 18E0088-01 | 5.43 ppb |
2018-05-01 | 18E0088-06 | 3.90 ppb |
2018-05-01 | 18E0088-05 | 4.02 ppb |
2018-05-02 | 18E0264-05 | 3.82 ppb |
2018-05-02 | 18E0264-01 | 3.84 ppb |
2018-05-02 | 18E0264-03 | 4.18 ppb |
2018-05-02 | 18E0264-04 | 4.26 ppb |
2018-05-02 | 18E0264-02 | 4.10 ppb |
2018-08-01 | 18H0210-04 | 8.74 ppb |
2018-08-01 | 18H0210-02 | 19.0 ppb |
2018-08-01 | 18H0210-03 | 13.4 ppb |
2018-08-01 | 18H0210-01 | 16.2 ppb |
2018-08-01 | 18H0210-05 | 19.4 ppb |
2018-08-01 | 18H0210-06 | 18.0 ppb |
2018-08-02 | 18H0572-04 | 15.4 ppb |
2018-08-02 | 18H0572-06 | 18.1 ppb |
2018-08-02 | 18H0572-01 | 17.3 ppb |
2018-08-02 | 18H0572-03 | 19.6 ppb |
2018-08-02 | 18H0572-05 | 18.6 ppb |
2018-08-02 | 18H0572-02 | 16.7 ppb |
2018-11-01 | 18K0426-04 | 3.60 ppb |
2018-11-01 | 18K0426-06 | 6.34 ppb |
2018-11-01 | 18K0426-03 | 3.27 ppb |
2018-11-01 | 18K0426-01 | 3.37 ppb |
2018-11-01 | 18K0426-02 | 6.90 ppb |
2018-11-01 | 18K0426-05 | 6.33 ppb |
2018-11-02 | 18K0627-02 | 6.38 ppb |
2018-11-02 | 18K0627-05 | 5.46 ppb |
2018-11-02 | 18K0627-01 | 6.37 ppb |
2018-11-02 | 18K0627-03 | 6.78 ppb |
2018-11-02 | 18K0627-06 | 7.64 ppb |
2018-11-02 | 18K0627-04 | 6.36 ppb |
2019-02-01 | 19B0579-01 | 4.66 ppb |
2019-02-01 | 19B0579-02 | 4.30 ppb |
2019-02-01 | 19B0579-03 | 4.51 ppb |
2019-02-01 | 19B0579-04 | 4.92 ppb |
2019-02-01 | 19B0579-05 | 4.15 ppb |
2019-02-01 | 19B0579-06 | 2.69 ppb |
2019-02-01 | 19B0579-07 | 4.60 ppb |
2019-02-01 | 19B0579-08 | 2.84 ppb |
2019-02-01 | 19B0579-09 | 5.02 ppb |
2019-02-01 | 19B0579-10 | 3.84 ppb |
2019-02-01 | 19B0579-11 | 4.40 ppb |
2019-02-01 | 19B0579-12 | 4.50 ppb |
2019-05-01 | 19E0821-02 | 3.65 ppb |
2019-05-01 | 19E0821-06 | 3.72 ppb |
2019-05-01 | 19E0821-03 | 2.66 ppb |
2019-05-01 | 19E0821-01 | 3.33 ppb |
2019-05-01 | 19E0821-05 | 3.89 ppb |
2019-05-01 | 19E0821-04 | 3.46 ppb |
2019-05-02 | 19E0870-03 | 3.45 ppb |
2019-05-02 | 19E0870-02 | 3.46 ppb |
2019-05-02 | 19E0870-01 | 3.37 ppb |
2019-05-03 | 19E1121-02 | 3.58 ppb |
2019-05-03 | 19E1121-01 | 3.39 ppb |
2019-05-03 | 19E1121-03 | 3.35 ppb |
2019-08-01 | 19H1062-03 | 5.58 ppb |
2019-08-01 | 19H1062-06 | 6.59 ppb |
2019-08-01 | 19H1062-02 | 6.23 ppb |
2019-08-01 | 19H1062-01 | 6.71 ppb |
2019-08-01 | 19H1062-04 | 6.31 ppb |
2019-08-01 | 19H1062-05 | 6.70 ppb |
2019-08-02 | 19H1096-02 | 6.65 ppb |
2019-08-02 | 19H1096-05 | 5.42 ppb |
2019-08-02 | 19H1096-01 | 6.67 ppb |
2019-08-02 | 19H1096-04 | 6.78 ppb |
2019-08-02 | 19H1096-06 | 6.65 ppb |
2019-08-02 | 19H1096-03 | 6.69 ppb |
2019-11-01 | 19K0944-03 | 6.42 ppb |
2019-11-01 | 19K0946-02 | 10.6 ppb |
2019-11-01 | 19K0944-04 | 8.67 ppb |
2019-11-01 | 19K0944-06 | 11.2 ppb |
2019-11-01 | 19K0944-01 | 9.68 ppb |
2019-11-01 | 19K0946-04 | 4.86 ppb |
2019-11-01 | 19K0944-02 | 10.9 ppb |
2019-11-01 | 19K0946-01 | 6.80 ppb |
2019-11-01 | 19K0946-06 | 12.2 ppb |
2019-11-01 | 19K0946-05 | 9.36 ppb |
2019-11-01 | 19K0946-03 | 10.7 ppb |
2019-11-01 | 19K0944-05 | 10.7 ppb |