NDLI: Relationship of pyrogenic polycyclic aromatic hydrocarbons contamination among environmental solid media.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Kim, Dong Won Kim, Seung Kyu Lee, Dong Soo
Description	Author Affiliation: Kim DW ( Environmental Planning Institute, Graduate School of Environmental Studies, Seoul National University, Seoul, 151-742, Republic of Korea.)
Abstract	This study compared the contamination levels and compositional characteristics of PAHs in soil, SS and sediment to understand the cross media characteristics among the three solid media and ecological risk implications for the purpose to help manage in a more integrated manner the environmental quality objectives or the ecological risk in the media. The study area included urban (metropolis and industrial zone), suburban and rural sites. Seasonal samples were concurrently collected in surface soils, surface waters (dissolved and suspended solid (SS) phases separately) and sediments. The emission estimate and source characterizing PAH indices consistently indicated that PAHs were from pyrogenic sources. The level of total PAHs in soil declined along the wind direction from the urban areas to the rural areas. The sorption power of soil appeared distinctly different between the urban and rural areas. The contamination levels and PAH profiles in soil and sediment were closely related to each other while no such correlation was observed between SS and sediment or SS and soil. Comparisons of the observed partitioning coefficients with three different partitioning equilibrium models strongly suggested that PAHs in water appeared to undergo partitioning among the dissolved phase in water, dissolved organic matter, and organic and soot carbons in SS, which might account for the level and profile of PAHs in SS that were not correlated with those in soil or sediment. The observed results suggested that PAHs of pyrogenic origins entered into soil, sediment, and water by the atmospheric deposition and subsequent other cross-media transfers of PAHs. The results also evidenced that sediments were principally contaminated with PAHs delivered via surface run-off from soil although in the urban areas the run-off influence appeared less immediate than in the rural areas. Environmental quality objectives for PAHs in soil and sediment should be set in a coherent manner and the protection efforts for the sediment quality should be made with the consideration of the soil quality particularly where the river bottom sediment is renewed periodically with eroded soil due to heavy rain and/or large river regime coefficient. In spite of the difference in PAH profiles among the three solid media, BaP commonly appeared to present the greatest TEQ, suggesting that strict regulation of BaP is necessary to efficiently and substantially minimize the total risk of the environmental PAHs.
File Format	HTM / HTML
ISSN	14640325
Issue Number	6
Volume Number	11
e-ISSN	14640333
Journal	Journal of Environmental Monitoring
Language	English
Publisher	Royal Society of Chemistry
Publisher Date	2009-06-01
Publisher Place	Great Britain (UK)
Access Restriction	Subscribed
Subject Keyword	Discipline Environmental Health Environmental Monitoring Geologic Sediments Chemistry Polycyclic Hydrocarbons, Aromatic Analysis Soil Pollutants Water Pollutants, Chemical Adsorption Rain Risk Assessment Seasons Wind Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Public Health, Environmental and Occupational Health Management, Monitoring, Policy and Law

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