IJSRP, Volume 4, Issue 10, October 2014 Edition [ISSN 2250-3153]
Abeda Khatun, Krishna Gopal Bhattacharyya, Hari Prasad Sarma
Urban stormwater runoff carries pollutants that collect on impervious surfaces such as oil, dirt, chemicals, and lawn fertilizers directly to receiving water bodies (surface water, seepage water and ground water), where they seriously harm water quality. This study investigated the variability of pollutant build-up parameters in five different land use types. For this purpose stormwater samples were collected from five different land use types; residential, commercial, recreational, heavy traffic and industrial, around Guwahati city, Assam (India) and analysed to measure different build-up parameter. It was found that distribution of stormwater pollutants is highly influenced by the surrounding land use type. Coefficient of variation (CV) is derived for each of the selected build-up parameters for the different land uses. Industrial land uses showed relatively higher values of CV, indicating the highly variable nature of the pollutant build-up parameters within the same land use.