• Shivani Guleria
• Shekhar Tyagi
• Ramagya Kushwaha

Rain water is the purest form of naturally occurring water resource and can be best utilized for domestic purpose. Evaluation of physico chemical properties of rainwater is important for assessment of air pollution and its utility. The current study was conducted to compare the quality of rain water in urban, rural and industrial area to understand the problems of rainwater contamination due to various pollutants. Rainwater samples were collected from rural, urban and industrial areas between July 2021 to September 2021. The sampling sites included were rural areas udiyabagh (vikasnagar) and Charba, industrial area Selaqui and urban area Dehradun. Results for pH, EC, total hardness, calcium hardness, magnesium hardness, temperature, alkalinity, chloride content, DO, BOD, TDS, nitrate and phosphate content were reported in this study. Findings indicate that industrialization and urbanization have altered the physico chemical properties of rain water.

Rain water analysis, pH, BOD, hardness, Alkalinity, TDS, Electrical conductivity.

"COMPARATIVE STUDY OF PHYSICO CHEMICAL PARAMETERS OF RAIN WATER IN URBAN, INDUSTRIAL AND RURAL AREAS OF DEHRADUN DISTRICT, UTTARAKHAND", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 1, page no.d1-d8, January-2022, Available :http://www.jetir.org/papers/JETIR2201301.pdf

"COMPARATIVE STUDY OF PHYSICO CHEMICAL PARAMETERS OF RAIN WATER IN URBAN, INDUSTRIAL AND RURAL AREAS OF DEHRADUN DISTRICT, UTTARAKHAND", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 1, page no. ppd1-d8, January-2022, Available at : http://www.jetir.org/papers/JETIR2201301.pdf