Dalapon
Mulberry, City of
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
20
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 |
|---|---|---|---|---|
| 2018 | 0.235 ppb | 4 | 1 | ND - 0.940 ppb |
| 2019 | 0.900 ppb | 2 | 1 | ND - 1.80 ppb |
| 2020 | ND | 4 | 0 | ND |
| 2021 | 0.500 ppb | 1 | 1 | 0.500 ppb |
| 2022 | 0.810 ppb | 1 | 1 | 0.810 ppb |
| 2023 | 0.228 ppb | 8 | 3 | ND - 0.780 ppb |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
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 |
|---|---|
| 2018-04-24 | 0.940 ppb |
| 2018-04-24 | ND |
| 2018-07-11 | ND |
| 2018-11-09 | ND |
| 2019-02-13 | ND |
| 2019-06-05 | 1.80 ppb |
| 2020-02-19 | ND |
| 2020-02-19 | ND |
| 2020-06-24 | ND |
| 2020-06-24 | ND |
| 2021-07-20 | 0.500 ppb |
| 2022-04-14 | 0.810 ppb |
| 2023-04-05 | ND |
| 2023-04-13 | ND |
| 2023-04-13 | ND |
| 2023-07-11 | 0.780 ppb |
| 2023-07-19 | ND |
| 2023-08-01 | ND |
| 2023-08-01 | 0.520 ppb |
| 2023-11-14 | 0.520 ppb |