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Assessment of Emerging Contaminants in a Drinking Water Reservoir
Urbanisation and changes in lifestyle have resulted in the release of emerging contaminants (ECs) into the environment. The present study has assessed the ECs in a drinking water reservoir in Chennai, India using LC-MS/MS. Of the 138 ECs screened, it was observed that 2,4-dichlorophenoxyacetic acid (2,4-D), a herbicide, had the highest concentration of 0.13 mg/L followed by 1,2 Dibromo 3 chloro propane (DBCP), a pesticide, with a concentration of 0.12 mg/L, which is 600 times higher than the USEPA regulatory standard. Two pharmaceuticals carbamazepine, an antiepileptic, and N-methylphenmacetin, an anti-inflammatory drug, were found at concentrations of 0.003 mg/L and 0.005 mg/L, respectively. The risk quotient for predominant ECs was computed. Endrin had the highest risk quotient followed by chlorpyrifos. The landuse map of the study area prepared using GIS showed 91.901 km2 of vegetation area. The presence of pesticides, herbicide and insecticide can be attributed to agricultural activities in the catchment area of the reservoir while the polychlorinated biphenyl and benzo(a)pyrene in water could be due to industrial activities in the vicinity. The pharmaceuticals in water might be due to leakage in sewers or discharge of wastewater from residential communities.
Assessment of Emerging Contaminants in a Drinking Water Reservoir
Urbanisation and changes in lifestyle have resulted in the release of emerging contaminants (ECs) into the environment. The present study has assessed the ECs in a drinking water reservoir in Chennai, India using LC-MS/MS. Of the 138 ECs screened, it was observed that 2,4-dichlorophenoxyacetic acid (2,4-D), a herbicide, had the highest concentration of 0.13 mg/L followed by 1,2 Dibromo 3 chloro propane (DBCP), a pesticide, with a concentration of 0.12 mg/L, which is 600 times higher than the USEPA regulatory standard. Two pharmaceuticals carbamazepine, an antiepileptic, and N-methylphenmacetin, an anti-inflammatory drug, were found at concentrations of 0.003 mg/L and 0.005 mg/L, respectively. The risk quotient for predominant ECs was computed. Endrin had the highest risk quotient followed by chlorpyrifos. The landuse map of the study area prepared using GIS showed 91.901 km2 of vegetation area. The presence of pesticides, herbicide and insecticide can be attributed to agricultural activities in the catchment area of the reservoir while the polychlorinated biphenyl and benzo(a)pyrene in water could be due to industrial activities in the vicinity. The pharmaceuticals in water might be due to leakage in sewers or discharge of wastewater from residential communities.
Assessment of Emerging Contaminants in a Drinking Water Reservoir
Lecture Notes in Civil Engineering
Ramanagopal, S. (editor) / Gali, Madhavi Latha (editor) / Venkataraman, Kartik (editor) / Mathew, Riya Ann (author) / Kanmani, S. (author)
2020-08-29
11 pages
Article/Chapter (Book)
Electronic Resource
English
Emerging contaminants , PPCPs , LC- MS/MS , Risk quotient , Landuse map Engineering , Geoengineering, Foundations, Hydraulics , Sustainable Architecture/Green Buildings , Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution , Building Construction and Design , Transportation Technology and Traffic Engineering
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