Environmental Assessment and Analysis of Chemical Properties of Drinking Water Using Geo-Spatial Technologies: Examples from Lahore Metropolitan

• 作者: Ali Imam Mirza Ali Iqtadar Mirza Arshad Javed Atif Ali Attia Naz Azam Sohail Azeem Akhtar Hafsa Batool Imran Saddique Kaukab Javed Ahmad Muhammad A. Butt Muneeb Aamir Rashid Mahmood Safeer Ali Sana Alvi Syed Shehzad Hassan Tabasam Jamal
• 来源期刊: 遥感技术进展(英文)
• 学科: 医学
• 关键词: Water Contamination Urbanization GEOGRAPHIC Information System (GIS) CHEMICAL Properties CARCINOGENIC Elements WHO WebGIS RS WASA DNA pH TDS
• 年，卷（期）: ygjsjzyw_2018,（3）
• 页码范围: 259-275
• 页数: 17页
• 分类号: R73

摘要

The contamination of drinking water in Pakistan is a serious threat to its citizens. Urbanization leads to an increased demand of drinking water supply that leads to excessive drawdown that further causes lowering of water table. The current WASA (Water and Sanitation Authority) supply network does not fulfill the demand of a growing metropolitan city of Lahore. The drawdown of Lahore is absolutely reliant on Water and Sanitation Authority (WASA) water supply network that causes numerous problems due to inappropriate management of groundwater capital and increased urbanization. This research investigates groundwater qualities: Alkalinity, Arsenic, Calcium, chloride, Total Hardness, Magnesium, Nitrate, pH and Total Dissolved solids using geographic information system (GIS). Residents of high concentrated towns, like Samnabad Town, Allama Iqbal Town, Gulberg, Data Ganj Bakhsh Town, Ravi Town and Wahga town witness cut-down of water supply mainly due to over burden on tube wells. Chemical properties of drinking water show that most of the parameters were within the allowable limits of WHO whereas the pH, and arsenic values are higher than the average. Arsenic is a carcinogenic element which causes cancer and is higher in the drinking water. Finally, this study identifies highly contaminated groundwater zones and makes it convenient to find actual pollutants. Therefore, plans are needed to protect the aquifer.