Dalapon
Frostproof, City of
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | 0.370 ppb | 6 | 3 | ND - 0.940 ppb |
2015 | N/A | 0 | 0 | N/A |
2016 | N/A | 0 | 0 | N/A |
2017 | 1.04 ppb | 6 | 4 | ND - 2.64 ppb |
2018 | ND | 6 | 0 | ND |
2019 | N/A | 0 | 0 | N/A |
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 |
---|---|
2014-08-03 | ND |
2014-08-03 | ND |
2014-08-03 | ND |
2014-11-09 | 0.940 ppb |
2014-11-09 | 0.800 ppb |
2014-11-09 | 0.480 ppb |
2017-09-26 | 2.64 ppb |
2017-09-26 | ND |
2017-09-26 | 1.60 ppb |
2017-12-27 | 1.000 ppb |
2017-12-27 | 1.000 ppb |
2017-12-27 | ND |
2018-04-19 | ND |
2018-04-19 | ND |
2018-08-13 | ND |
2018-08-13 | ND |
2018-11-21 | ND |
2018-11-21 | ND |