o-toluidine
San Francisco City Water System
The synthetic chemical o-toluidine is used to manufacture pesticides, dyes and other industrial chemicals. The International Agency for Research on Cancer has classified o-toluidine as carcinogenic to humans, and it may also harm the nervous system, kidneys and bladder.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | N/A | 0 | 0 | N/A |
2015 | N/A | 0 | 0 | N/A |
2016 | N/A | 0 | 0 | N/A |
2017 | N/A | 0 | 0 | N/A |
2018 | ND | 22 | 0 | ND |
2019 | ND | 1 | 0 | ND |
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2018-01-22 | 201801230577 | ND |
2018-01-22 | 201801230575 | ND |
2018-01-22 | 201801230583 | ND |
2018-01-22 | 201801230763 | ND |
2018-01-22 | 201801230588 | ND |
2018-01-22 | 201801230754 | ND |
2018-04-23 | 201804240634 | ND |
2018-04-23 | 201804240635 | ND |
2018-04-23 | 201804240646 | ND |
2018-04-23 | 201804240633 | ND |
2018-06-07 | 201806080877 | ND |
2018-06-07 | 201806080878 | ND |
2018-07-23 | 201807240392 | ND |
2018-07-23 | 201807240390 | ND |
2018-08-30 | 201808310449 | ND |
2018-08-30 | 201808310471 | ND |
2018-09-19 | 201809200530 | ND |
2018-09-19 | 201809200540 | ND |
2018-11-26 | 201811270386 | ND |
2018-11-26 | 201811270385 | ND |
2018-12-11 | 201812120358 | ND |
2018-12-11 | 201812120277 | ND |
2019-01-15 | 201901170151 | ND |