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Physico-chemical Assessment of Deep Groundwater Quality of Various Sites of Kathmandu Metropolitan City, Nepal

Author Affiliations

  • 1Department of Chemistry, Faculty of Science, Padma Kanya Multiple Campus, Tribhuvan University, Bagbazar, Kathmandu, NEPAL

Res.J.chem.sci., Volume 3, Issue (8), Pages 78-82, August,18 (2013)

Abstract

The present study was carried out to assess deep tubewell groundwater quality of Kathmandu metropolitan city. To study various water quality parameters, groundwater samples from eight major locations of the city were collected and analyzed. Samples were collected in pre-monsoon (month of April-May 2013) and preserved using suitable preservation methods. The collected groundwater samples were analyzed for the following physico-chemical parameters: temperature, colour, turbidity, pH, electric conductivity (EC), total alkalinity, phenolphthalein alkalinity, total hardness, calcium, magnesium, iron, chloride and total ammonia using the procedure outlined in the standard methods. Results showed that the water quality status was found to vary from place to place. High levels of turbidity, total alkalinity, total hardness, iron and total ammonia were found in the groundwater of many sites. The results were compared with WHO water quality guideline and National Drinking Water Quality Standard (NDWQS) of Nepal.

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