Roorkee, a sub-tropical urban town in India, has shown a rapid unplanned growth in the past. This paper presents the findings of a study of characteristics of urban soil, rainwater, and runoff emanating from different sources areas and the stormwater flows in the drains. Urban soil showed significant increase in the concentration of all constituents in comparison to the nearby rural soil. Soil metal pollution index suggested multi-element contamination. The traffic and transportation system emerged as the major source of metals and organics. Concentration of rainwater ions was observed to follow the pattern Ca2+ > HCO3− > Cl− > NO3− > Na+ > Mg2+ > SO42− > K+. Runoff results indicated a significant enhancement in the concentration of most measured constituents over their rainfall levels. The values of runoff coefficient varied between 0.05 and 0.58, with the high values displayed by the paved areas. Multiple regression equations were developed relating event mean concentration to various storm characteristics. The total load of all measured constituents was observed to vary considerably among the study sites, the direct runoff loads being much higher than the dry weather loads.
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Research Article|
May 20 2014
Hydrological and environmental assessment of urban growth in a sub-tropical town in India Available to Purchase
Himanshu Joshi;
Himanshu Joshi
1Department of Hydrology, IIT Roorkee, Roorkee 247667, India E-mail: [email protected]
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Abdul Hameed M. Jawad Al Obaidy
Abdul Hameed M. Jawad Al Obaidy
2Marine Science Center, University of Basrah, Basrah, Iraq
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Water Sci Technol (2014) 70 (11): 1721–1728.
Article history
Received:
February 20 2014
Accepted:
May 07 2014
Citation
Himanshu Joshi, Abdul Hameed M. Jawad Al Obaidy; Hydrological and environmental assessment of urban growth in a sub-tropical town in India. Water Sci Technol 1 December 2014; 70 (11): 1721–1728. doi: https://doi.org/10.2166/wst.2014.234
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