Dalapon
Central
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
44
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 10 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | 0.929 ppb | 24 | 15 | ND - 2.20 ppb |
| 2018 | 0.640 ppb | 5 | 2 | ND - 1.80 ppb |
| 2019 | 0.460 ppb | 5 | 2 | ND - 1.30 ppb |
ppb = parts per billion
State and national drinking water standards and health guidelines
EPA Maximum Contaminant
Level (MCL) 200 ppb
The legal limit for dalapon, established in 1992, was based on a toxicity study in laboratory animals published in 1960.
ppb = parts per billion
All test results
| Date | Result |
|---|---|
| 2014-05-12 | ND |
| 2014-05-12 | ND |
| 2014-05-12 | ND |
| 2014-05-13 | ND |
| 2014-05-13 | ND |
| 2014-07-24 | ND |
| 2014-07-24 | ND |
| 2014-07-24 | ND |
| 2014-07-24 | ND |
| 2014-07-24 | ND |
| 2017-03-27 | 1.30 ppb |
| 2017-03-27 | 1.20 ppb |
| 2017-03-28 | 1.60 ppb |
| 2017-03-28 | 2.20 ppb |
| 2017-03-28 | 2.20 ppb |
| 2017-06-07 | ND |
| 2017-06-07 | ND |
| 2017-06-07 | 1.60 ppb |
| 2017-06-07 | 1.80 ppb |
| 2017-06-07 | 1.40 ppb |
| 2017-09-07 | 1.80 ppb |
| 2017-09-07 | 1.000 ppb |
| 2017-09-07 | 1.000 ppb |
| 2017-09-07 | 1.20 ppb |
| 2017-09-07 | 1.40 ppb |
| 2017-11-29 | ND |
| 2017-11-29 | ND |
| 2017-11-29 | ND |
| 2017-11-29 | ND |
| 2017-11-29 | ND |
| 2017-12-04 | 1.30 ppb |
| 2017-12-04 | ND |
| 2017-12-04 | 1.30 ppb |
| 2017-12-04 | ND |
| 2018-02-21 | ND |
| 2018-02-21 | 1.40 ppb |
| 2018-02-21 | ND |
| 2018-03-05 | 1.80 ppb |
| 2018-04-24 | ND |
| 2019-02-25 | 1.30 ppb |
| 2019-02-25 | ND |
| 2019-02-25 | ND |
| 2019-02-25 | 1.000 ppb |
| 2019-02-25 | ND |