Status: Baseline only

Baseline only

Most Recent Data:
10.7 micrograms per gram (µg/g) (2013-14)

9.4 µg/g

Desired Direction:
Decrease desired

10.7 micrograms per gram (µg/g) was the concentration level of perchlorate (creatinine corrected) in urine samples at which 95 percent of the population aged 6 years and over was at or below in 2013-14

Reduce exposure to perchlorate in the population, as measured by blood or urine concentrations of the substance or its metabolites

Target-Setting Method


Perchlorate is a chemical found in rocket propellant, fireworks, and matches — and it’s used in some industrial processes, like leather tanning and fabric dyeing. Perchlorate has been found in drinking water in the United States. When people are exposed to it, it can damage their thyroids. Tracking exposure to perchlorate and regulating its levels in drinking water can help prevent negative health effects.