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EWG's Tap Water Database — 2021 UPDATE

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Cyanazine (Bladex)

City of Spokane

Cyanazine, a cancer-causing chemical related to the herbicide atrazine, has been phased out of use in the U.S. since 1995. Cyanazine has been also linked to birth defects and damage to the central nervous system.

 

23

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND50ND
2015ND80ND
2016N/A00N/A
2017ND40ND
2018ND60ND
2019N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 1 ppb

The EWG Health Guideline of 1 ppb for cyanazine was defined by the Environmental Protection Agency as a lifetime health-based limit for effects other than cancer. This health guideline protects against .

ppb = parts per billion

All test results

Date Lab ID Result
2014-07-2900947ND
2014-07-2900946ND
2014-07-2900945ND
2014-10-2854250ND
2014-12-0255190ND
2015-04-2859499ND
2015-07-2863239ND
2015-07-2863246ND
2015-07-2863258ND
2015-07-2863244ND
2015-10-2767369ND
2015-10-2767367ND
2015-10-2767368ND
2017-07-25ND
2017-07-25ND
2017-10-24ND
2017-10-24ND
2018-07-17ND
2018-07-17ND
2018-07-17ND
2018-10-30ND
2018-10-30ND
2018-10-30ND