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Effects of climate change on the wash-off of volatile organic compounds from urban roads
- Source :
- The Science of the total environment. 409(19)
- Publication Year :
- 2011
-
Abstract
- The predicted changes in rainfall characteristics due to climate change could adversely affect stormwater quality in highly urbanised coastal areas throughout the world. This in turn will exert a significant influence on the discharge of pollutants to estuarine and marine waters. Hence, an in-depth analysis of the effects of such changes on the wash-off of volatile organic compounds (VOCs) from urban roads in the Gold Coast region in Australia was undertaken. The rainfall characteristics were simulated using a rainfall simulator. Principal Component Analysis (PCA) and Multicriteria Decision tools such as PROMETHEE and GAIA were employed to understand the VOC wash-off under climate change. It was found that low, low to moderate and high rain events due to climate change will affect the wash-off of toluene, ethylbenzene, meta-xylene, para-xylene and ortho-xylene from urban roads in Gold Coast. Total organic carbon (TOC) was identified as predominant carrier of toluene, meta-xylene and para-xylene in1 μm to 150 μm fractions and for ethylbenzene in 150 μm to300 μm fractions under such dominant rain events due to climate change. However, ortho-xylene did not show such affinity towards either TOC or TSS (total suspended solids) under the simulated climatic conditions.
- Subjects :
- Pollutant
Hydrology
Total organic carbon
geography
Principal Component Analysis
Volatile Organic Compounds
Environmental Engineering
geography.geographical_feature_category
Climate Change
Rain
Stormwater
Environmental engineering
Climate change
Estuary
Pollution
Effects of global warming
Water Movements
Environmental Chemistry
Environmental science
Water Pollutants
Water quality
Cities
Waste Management and Disposal
Total suspended solids
Subjects
Details
- ISSN :
- 18791026
- Volume :
- 409
- Issue :
- 19
- Database :
- OpenAIRE
- Journal :
- The Science of the total environment
- Accession number :
- edsair.doi.dedup.....ee17b4d72325ae130f4728840c0bdc78