Characterization and source identification of stormwater runoff in tropical urban catchments

Ming Fai Chow, Z. Yusop

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The characteristics of urban stormwater pollution in the tropics are still poorly understood. This issue is crucial to the tropical environment because its rainfall and runoff generation processes are so different from temperate regions. In this regard, a stormwater monitoring program was carried out at three urban catchments (e.g. residential, commercial and industrial) in the southern part of Peninsular Malaysia. A total of 51 storm events were collected at these three catchments. Samples were analyzed for total suspended solids, 5-day biochemical oxygen demand, chemical oxygen demand (COD), oil and grease, nitrate nitrogen, nitrite nitrogen, ammonia nitrogen (NH3-N), soluble reactive phosphorus and total phosphorus. Principal component analysis (PCA) and hierarchical cluster analysis were used to interpret the stormwater quality data for pattern recognition and identification of possible sources. The most likely sources of stormwater pollutants at the residential catchment were from surface soil and leachate of fertilizer from domestic lawns and gardens, whereas the most likely sources for the commercial catchment were from discharges of food waste and washing detergent. In the industrial catchment, the major sources of pollutants were discharges from workshops and factories. The PCA factors further revealed that COD and NH3-N were the major pollutants influencing the runoff quality in all three catchments.

Original languageEnglish
Pages (from-to)244-252
Number of pages9
JournalWater Science and Technology
Volume69
Issue number2
DOIs
Publication statusPublished - 01 Jan 2014

Fingerprint

Runoff
stormwater
Catchments
catchment
runoff
Chemical oxygen demand
Nitrogen
chemical oxygen demand
Principal component analysis
Phosphorus
pollutant
nitrogen
principal component analysis
phosphorus
Tropics
tropical environment
Biochemical oxygen demand
Detergents
pattern recognition
Cluster analysis

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Water Science and Technology

Cite this

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Characterization and source identification of stormwater runoff in tropical urban catchments. / Chow, Ming Fai; Yusop, Z.

In: Water Science and Technology, Vol. 69, No. 2, 01.01.2014, p. 244-252.

Research output: Contribution to journalArticle

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