NDLI: Pollutant characteristics of road deposited sediments collected by road sweeping.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Kim, Do-Gun Kim, Hyun-Seop Kang, Hee-Man Ko, Seok-Oh
Description	Author Affiliation: Kim DG ( Department of Civil Engineering, Kyung Hee University, Yongin, Korea E-mail: soko@khu.ac.kr.); Kim HS ( Department of Civil Engineering, Kyung Hee University, Yongin, Korea E-mail: soko@khu.ac.kr.); Kang HM ( Construction and Environment Research Division, Expressway & Transportation Research Institute, Hwaseong, Korea.); Ko SO ( Department of Civil Engineering, Kyung Hee University, Yongin, Korea E-mail: soko@khu.ac.kr.)
Abstract	Road deposited sediments (RDS) swept from highways in South Korea were characterized to quantitatively evaluate the reduction in non-point source pollutants by sweeping. The swept RDS consisted primarily of sand (63 µm to 2 mm) particles (80.34 ± 8.33% of total weight) highly contaminated by organics, nutrients and heavy metals. The average concentrations of total organic carbon (TOC), biochemical oxygen demand (BOD), volatile solids (VS), total nitrogen (T-N), and total phosphorus (T-P) were 20.17 ± 9.13, 1.04 ± 0.62, 39.92 ± 16.55, 1.99 ± 0.96, and 0.54 ± 0.19 g kg(-1) (±one standard deviation), respectively, for 63 µm to 2 mm RDS. The concentrations of the pollutants were high for RDS smaller than 63 µm, but most of the mass was associated with the 63 µm to 2 mm RDS. The results suggest that the pollutants associated with RDS swept from highways originated mainly from engine wear, exhaust emissions, and tire wear. These results were different from the RDS on roads in residential and commercial areas, where natural particles and brake wear contribute significantly to RDS. In addition, the reductions in TOC, BOD, VS, T-N, T-P, Cu, Pb, Zn, Fe, and As based on the swept RDS measurements were calculated to be 3,355.3, 175.1, 6,621.4, 323.0, 88.3, 30.3, 13.7, 1.0, 303.4, 11,198.7, and 0.4 g km(-1), respectively.
File Format	HTM / HTML
ISSN	02731223
Issue Number	1
Journal	Water Science & Technology
Volume Number	74
e-ISSN	19969732
Language	English
Publisher	IWA Publishing
Publisher Date	2016-01-01
Publisher Place	Great Britain (UK)
Access Restriction	Subscribed
Content Type	Text
Resource Type	Article
Subject	Environmental Engineering Water Science and Technology

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