QUALITY ASSESSMENT OF THE RAIN WATER SAMPLE COLLECTED FROM COASTAL TERRITORY AND DIFFERENT LOCATION OF CHATTOGRAM CITY

Abstract

Water plays a crucial role in the daily lives of all living beings. The sources could come from the earth or the surface. Although rainwater is known to be pure, its usage may be limited because of contamination from other natural sources, including those used in agriculture, industry, and transportation. In order to offer information on the results for use in policymaking and monitoring, numerous research projects on the assessment of rain water quality have been conducted. The purpose of this study was to evaluate the physicochemical parameters of the rainwater quality (August– September, 2021) and identify any potential health risks associated with drinking rainwater.The easiest and cleanest type of water source available to big groups of people, groundwater is often a dependable supply of water for households. However, owing to ecological changes and the effects of urbanization, this cleanest source of water has suddenly become polluted. The industrialization process makes this situation worse as well. Untreated industrial waste that is thrown straight onto the ground without any treatment seeps into the ground and taints nearby groundwater sources. Dumping of domestic garbage and poor drainage systems may also be to blame(G. Venkatesan*, 2013). The assessment process employed conventional techniques. The outcomes held up well when compared to other used references and WHO criteria. One of the most populous cities in Bangladesh, Chattogram has been plagued by issues like chaotic urbanization, overpopulation, water scarcity, waterlogging, and other issues. Of these, water scarcity is one of the most significant.Utilizing rainwater for storage and conservation is a cutting-edge method of reducing the problem of water scarcity. Humans can use this rainwater for a variety of things, hence it is important to determine its chemical. The nine zones of Chattogram City were used to collect the samples of rainwater. Around the world, people are increasingly using rainwater collected from roofs as a cost-effective substitute for commercially manufactured drinking water. Rainfall is initially free of microbial contamination, but it can be contaminated by people and animals, or it can proliferate human pathogens in stored rainwater, posing a serious risk of infectious diseases to people.In this study,PH of collected rain water sample found from the range of 5.7- 6.8. Total dissolved solid is comparatively higher in Cox’sBazar than any other places which is 359mg/L. TDS range found 2-68mg/L except Cox’sBazar. Nitrate and Sulphate did not found in collected rain water sample. Chloride present in xii the rain water sample of bandar, Cox’sBazar, patenga and raozan respectively 3.55,35.5,21. 3 and 10.6.Sodium present in the range of 103.5-777.4 mg/L