Strontium
Howard County Department of Public Works
Strontium is a metal that accumulates in the bones. Radioactive strontium-90 can cause bone cancer and leukemia, and any form of strontium at high doses can harm bone health.
16
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 |
|---|---|---|---|---|
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | 0.0715 ppb | 16 | 16 | 0.0653 ppb - 0.0781 ppb |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 1,500 ppb
The EWG Health Guideline of 1,500 ppb for strontium was defined by the Environmental Protection Agency as a benchmark for testing under the Unregulated Contaminant Monitoring Rule program. This health guideline protects against harm to bones.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2015-01-28 | 2052020001 | 0.0731 ppb |
| 2015-01-28 | 2052019004 | 0.0744 ppb |
| 2015-01-28 | 2052020004 | 0.0751 ppb |
| 2015-01-28 | 2052019001 | 0.0716 ppb |
| 2015-04-23 | 2067208001 | 0.0653 ppb |
| 2015-04-23 | 2067209004 | 0.0733 ppb |
| 2015-04-23 | 2067208004 | 0.0675 ppb |
| 2015-04-23 | 2067209001 | 0.0709 ppb |
| 2015-07-29 | 2086326003 | 0.0723 ppb |
| 2015-07-29 | 2086326001 | 0.0709 ppb |
| 2015-07-30 | 2086326008 | 0.0681 ppb |
| 2015-07-30 | 2086326005 | 0.0659 ppb |
| 2015-10-29 | 2105018004 | 0.0710 ppb |
| 2015-10-29 | 2105017004 | 0.0781 ppb |
| 2015-10-29 | 2105018001 | 0.0688 ppb |
| 2015-10-29 | 2105017001 | 0.0777 ppb |