Title

Removal Of Highway Contaminants By Roadside Swales.

Abstract

Removal of highway contaminants by roadside swales was investigated at the Maitland and EPCOT Interchanges with Interstate 4 (I-4) in Orange County, Florida. Periodic grab samples were collected from several locations along the swale throughout the flow period and were analyzed to determine concentration and mass removal rates for various pollutants under several values of flow rates and experimental conditions. Removal efficiencies for dissolved heavy metals appeared to be higher than for nitrogen and phosphorus. Pollutants may be retained in swale areas by sorption, precipitation, coprecipitation and biological uptake processes; however, occasional increases in concentrations of highway contaminants were observed at intermediate stations during the swale experiments. Mass removal of heavy metals, nitrogen, and phosphorus was directly related to infiltration losses and on-site storage.

Publication Date

1-1-1985

Publication Title

Transportation Research Record

Number of Pages

62-68

Document Type

Article

Personal Identifier

scopus

Socpus ID

0021899948 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0021899948

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