Perchlorate and nitrate are both goitrogens, i.e.,
agents that can prevent the thyroid from absorbing
iodide. Several environmental studies have focused on
perchlorate as the sole waterborne goitrogen of public
health concern in drinking water sources; however, any
potential goitrogenic health effects of perchlorate cannot
be understood in isolation from other waterborne
goitrogens. This research set out to determine the overall
distribution of perchlorate and nitrate in California
drinking water sources and investigate the co-occurrence,
if any, of these goitrogens.
Data from the California Department of Health
Services Division of Drinking Water and Environmental
Monitoring database of source water monitoring
results were analyzed. The study found that
nitrate occurred in significantly higher concentrations
than perchlorate (and over a much broader
geographic area) and co-occurred with perchlorate.
Drinking water sources that contained detectable
levels of perchlorate had, on average, much higher
concentrations of nitrates compared with other
sources. This research provides insight into how
water sources can be contaminated by multiple analytes
simultaneously and how to determine whether
these contaminants share a common source or infiltration
route. Includes 19 references, tables, figure.
| Edition : | Vol. 99 - No. 9 |
| File Size : | 1
file
, 280 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 7 |
| Published : | 09/01/2007 |
