Know Your Environment. Protect Your Health.

Bromoform

Pittsburgh Water & Sewer 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.

 

293

Samples

0

Samples exceeding legal limit (MCL)

89

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.659 ppb4817ND - 2.93 ppb
20190.332 ppb4817ND - 1.47 ppb
20201.28 ppb4824ND - 5.29 ppb
2021ND510ND
20220.491 ppb5014ND - 2.20 ppb
20230.504 ppb4817ND - 1.89 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.5 ppb

The EWG Health Guideline of 0.5 ppb for bromoform is based on the California Office of Environmental Health Hazard Assessment's public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer, harm to reproduction and child development, and change to fetal growth and development .

ppb = parts per billion

All test results

Date Lab ID Result
2018-02-0202180209ND
2018-02-0202180205ND
2018-02-0202180211ND
2018-02-0202180214ND
2018-02-0202180203ND
2018-02-0202180208ND
2018-02-0202180207ND
2018-02-0202180204ND
2018-02-0202180213ND
2018-02-0202180210ND
2018-02-0202180206ND
2018-02-0202180212ND
2018-05-0118E0088-04ND
2018-05-0118E0088-02ND
2018-05-0118E0088-07ND
2018-05-0118E0088-03ND
2018-05-0118E0088-010.620 ppb
2018-05-0118E0088-06ND
2018-05-0118E0088-05ND
2018-05-0218E0264-05ND
2018-05-0218E0264-01ND
2018-05-0218E0264-03ND
2018-05-0218E0264-04ND
2018-05-0218E0264-02ND
2018-08-0118H0210-041.24 ppb
2018-08-0118H0210-022.57 ppb
2018-08-0118H0210-032.03 ppb
2018-08-0118H0210-012.51 ppb
2018-08-0118H0210-052.62 ppb
2018-08-0118H0210-062.61 ppb
2018-08-0218H0572-042.34 ppb
2018-08-0218H0572-062.71 ppb
2018-08-0218H0572-012.40 ppb
2018-08-0218H0572-032.93 ppb
2018-08-0218H0572-052.57 ppb
2018-08-0218H0572-022.30 ppb
2018-11-0118K0426-04ND
2018-11-0118K0426-060.517 ppb
2018-11-0118K0426-03ND
2018-11-0118K0426-01ND
2018-11-0118K0426-020.560 ppb
2018-11-0118K0426-05ND
2018-11-0218K0627-02ND
2018-11-0218K0627-05ND
2018-11-0218K0627-01ND
2018-11-0218K0627-030.525 ppb
2018-11-0218K0627-060.586 ppb
2018-11-0218K0627-04ND
2019-02-0119B0579-010.502 ppb
2019-02-0119B0579-02ND
2019-02-0119B0579-030.512 ppb
2019-02-0119B0579-040.555 ppb
2019-02-0119B0579-05ND
2019-02-0119B0579-06ND
2019-02-0119B0579-070.512 ppb
2019-02-0119B0579-08ND
2019-02-0119B0579-090.584 ppb
2019-02-0119B0579-10ND
2019-02-0119B0579-11ND
2019-02-0119B0579-120.510 ppb
2019-05-0119E0821-02ND
2019-05-0119E0821-06ND
2019-05-0119E0821-03ND
2019-05-0119E0821-01ND
2019-05-0119E0821-05ND
2019-05-0119E0821-04ND
2019-05-0219E0870-03ND
2019-05-0219E0870-02ND
2019-05-0219E0870-01ND
2019-05-0319E1121-02ND
2019-05-0319E1121-01ND
2019-05-0319E1121-03ND
2019-08-0119H1062-03ND
2019-08-0119H1062-06ND
2019-08-0119H1062-02ND
2019-08-0119H1062-01ND
2019-08-0119H1062-04ND
2019-08-0119H1062-05ND
2019-08-0219H1096-02ND
2019-08-0219H1096-05ND
2019-08-0219H1096-01ND
2019-08-0219H1096-04ND
2019-08-0219H1096-06ND
2019-08-0219H1096-03ND
2019-11-0119K0944-030.856 ppb
2019-11-0119K0946-021.26 ppb
2019-11-0119K0944-041.09 ppb
2019-11-0119K0944-061.44 ppb
2019-11-0119K0944-011.10 ppb
2019-11-0119K0946-04ND
2019-11-0119K0944-021.33 ppb
2019-11-0119K0946-010.563 ppb
2019-11-0119K0946-061.47 ppb
2019-11-0119K0946-051.11 ppb
2019-11-0119K0946-031.23 ppb
2019-11-0119K0944-051.31 ppb
2020-02-03ND
2020-02-03ND
2020-02-03ND
2020-02-03ND
2020-02-03ND
2020-02-03ND
2020-02-03ND
2020-02-03ND
2020-02-03ND
2020-02-03ND
2020-02-03ND
2020-02-03ND
2020-05-01ND
2020-05-01ND
2020-05-01ND
2020-05-01ND
2020-05-01ND
2020-05-01ND
2020-05-01ND
2020-05-01ND
2020-05-01ND
2020-05-01ND
2020-05-01ND
2020-05-01ND
2020-07-303.34 ppb
2020-07-302.77 ppb
2020-07-312.26 ppb
2020-07-312.84 ppb
2020-07-311.78 ppb
2020-07-312.62 ppb
2020-07-313.15 ppb
2020-07-312.74 ppb
2020-08-033.19 ppb
2020-08-033.32 ppb
2020-08-032.95 ppb
2020-08-032.52 ppb
2020-11-022.48 ppb
2020-11-021.81 ppb
2020-11-021.80 ppb
2020-11-022.26 ppb
2020-11-022.39 ppb
2020-11-021.05 ppb
2020-11-022.28 ppb
2020-11-021.82 ppb
2020-11-022.71 ppb
2020-11-022.01 ppb
2020-11-022.07 ppb
2020-11-025.29 ppb
2021-02-01ND
2021-02-01ND
2021-02-01ND
2021-02-01ND
2021-02-01ND
2021-02-02ND
2021-02-02ND
2021-02-02ND
2021-02-02ND
2021-02-02ND
2021-02-02ND
2021-02-02ND
2021-04-29ND
2021-04-29ND
2021-04-29ND
2021-04-29ND
2021-04-29ND
2021-04-29ND
2021-04-29ND
2021-04-30ND
2021-04-30ND
2021-04-30ND
2021-04-30ND
2021-04-30ND
2021-07-30ND
2021-07-30ND
2021-07-30ND
2021-07-30ND
2021-08-02ND
2021-08-02ND
2021-08-02ND
2021-08-02ND
2021-08-02ND
2021-08-02ND
2021-08-02ND
2021-08-03ND
2021-08-13ND
2021-11-01ND
2021-11-01ND
2021-11-01ND
2021-11-01ND
2021-11-01ND
2021-11-02ND
2021-11-02ND
2021-11-02ND
2021-11-02ND
2021-11-02ND
2021-11-02ND
2021-11-02ND
2021-11-05ND
2021-11-05ND
2022-02-01ND
2022-02-01ND
2022-02-01ND
2022-02-01ND
2022-02-01ND
2022-02-01ND
2022-02-01ND
2022-02-01ND
2022-02-01ND
2022-02-01ND
2022-02-01ND
2022-02-01ND
2022-05-02ND
2022-05-02ND
2022-05-02ND
2022-05-02ND
2022-05-02ND
2022-05-02ND
2022-05-02ND
2022-05-02ND
2022-05-02ND
2022-05-02ND
2022-05-02ND
2022-05-03ND
2022-08-011.80 ppb
2022-08-012.00 ppb
2022-08-012.12 ppb
2022-08-011.40 ppb
2022-08-011.46 ppb
2022-08-012.05 ppb
2022-08-011.85 ppb
2022-08-011.85 ppb
2022-08-011.79 ppb
2022-08-011.81 ppb
2022-08-021.27 ppb
2022-08-021.83 ppb
2022-08-221.14 ppb
2022-08-232.20 ppb
2022-11-01ND
2022-11-01ND
2022-11-01ND
2022-11-01ND
2022-11-01ND
2022-11-01ND
2022-11-01ND
2022-11-01ND
2022-11-01ND
2022-11-01ND
2022-11-01ND
2022-11-01ND
2023-02-02ND
2023-02-02ND
2023-02-02ND
2023-02-02ND
2023-02-02ND
2023-02-02ND
2023-02-02ND
2023-02-02ND
2023-02-02ND
2023-02-02ND
2023-02-02ND
2023-02-02ND
2023-05-01ND
2023-05-01ND
2023-05-01ND
2023-05-01ND
2023-05-01ND
2023-05-01ND
2023-05-01ND
2023-05-01ND
2023-05-01ND
2023-05-01ND
2023-05-01ND
2023-05-01ND
2023-08-01ND
2023-08-011.62 ppb
2023-08-011.43 ppb
2023-08-011.85 ppb
2023-08-011.62 ppb
2023-08-011.03 ppb
2023-08-011.54 ppb
2023-08-011.41 ppb
2023-08-011.87 ppb
2023-08-011.69 ppb
2023-08-011.89 ppb
2023-08-011.69 ppb
2023-10-30ND
2023-10-301.06 ppb
2023-10-301.10 ppb
2023-10-301.12 ppb
2023-10-30ND
2023-10-30ND
2023-10-31ND
2023-10-311.10 ppb
2023-10-311.15 ppb
2023-10-31ND
2023-10-31ND
2023-10-311.000 ppb