eng Science and Education Publishing Applied Ecology and Environmental Sciences 2328-3920 2023-02-27 11 1 33 41 10.12691/aees-11-1-5 AEES20231115 article Sheetal Tyagi sheetalty@gmail.com 1 Kanika Dobhal 1 Bhavtosh Sharma 2 Department of Chemistry, Shri Guru Ram Rai University, Dehradun, Uttarakhand, India Water Quality Analysis Laboratory, Uttarakhand Science Education & Research Centre (USERC), Dehradun, Uttarakhand, India Safe drinking water is both a basic requirement for good health and a human right. In many places of the world, fresh water is already in short supply due to rising population, urbanisation and climate change and will become much more restrictive in the next century. Among the various other contaminants of drinking water, arsenic has proven to be one of the most toxic due to its hazardous nature and adverse effects on living being and is therefore considered as one of the biggest environmental threats. The path followed by As in our environment, ultimately reach and affect our ecology as a whole. This paper presents an overview of the highly toxic arsenic existence in drinking water around the globe with a detailed view of India and the various treatment techniques followed by remedial measures along with their advancement. http://pubs.sciepub.com/aees/11/1/5/aees-11-1-5.pdf arsenic contamination water resources India treatment