Citation

Wu Q, Oldi JF, Kannan K. Environ. Toxicol. Chem. 2011; 30(11): 2449-2455.

Affiliation

Wadsworth Center, New York State Department of Health, State University of New York at Albany, Albany, New York USA.

Copyright

(Copyright © 2011, Society of Environmental Toxicology and Chemistry (SETAC), Publisher John Wiley and Sons)

DOI

10.1002/etc.648

PMID

21850663

Abstract

Perchlorate is a widespread contaminant in aquatic environments. Despite this, aquatic environmental fate of perchlorate released from fireworks displays is not well known. In the present study, we examined the fate of perchlorate in man-made reflecting ponds, from 2008 to 2010, following three fireworks displays in Albany, New York, USA. Immediately after the fireworks display, perchlorate concentrations in pond waters increased significantly, with concentrations 30 to 1480 times higher than the baseline values. Perchlorate concentration in pond water increased from 0.11 µg/L to up to 519 µg/L, following the fireworks display in 2008. Perchlorate concentrations in pond water decreased at a first-order kinetic degradation rate, with a mean k(obs) value of 0.026 d(-1) and an average half-life of 29 d. The rate of perchlorate deposition into water bodies following fireworks displays was estimated to range from 670 to 2620 g/ha. We also estimated the perchlorate ingestion rate by the inhalation of aerosols of pond water by people frequent near the pond. The estimated daily intake of perchlorate through the ingestion of aerosols was 32% (226 ng/kg body wt), 13% (92 ng/kg body wt), and 6% (42 ng/kg body wt) of the U.S. Environmental Protection Agency's reference dose for infants, children, and adults, respectively. Environ. Toxicol. Chem. © 2011 SETAC.

Language: en