Title

Characterizing Dry Deposition Of Mercury In Urban Runoff

Keywords

Dry deposition; Mercury; Partitioning; Stormwater; Urban runoff

Abstract

Stormwater runoff from urban surfaces often contains elevated levels of toxic metals. When discharged directly into water bodies, these pollutants degrade water quality and impact aquatic life and human health. In this study, the composition of impervious surface runoff and associated rainfall was investigated for several storm events at an urban site in Orlando, Florida. Total mercury in runoff consisted of 58% particulate and 42% filtered forms. Concentration comparisons at the start and end of runoff events indicate that about 85% of particulate total mercury and 93% of particulate methylmercury were removed from the surface before runoff ended. Filtered mercury concentrations showed less than 50% reduction of both total and methylmercury from first flush to final flush. Direct comparison between rainfall and runoff at this urban site indicates dry deposition accounted for 22% of total inorganic mercury in runoff. © 2007 Springer Science+Business Media B.V.

Publication Date

10-1-2007

Publication Title

Water, Air, and Soil Pollution

Volume

185

Issue

1-4

Number of Pages

21-32

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1007/s11270-007-9396-y

Socpus ID

34648835116 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/34648835116

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