There is a lack of evidence regarding the effectiveness of technologies used to reduce arsenic contamination finds research in BioMed Central’s open access journal Environmental Evidence. More studies assessing the technologies themselves and how they are used in the community are needed to ensure that people have access to safe, clean water.
Arsenic is now recognised to be one of the world’s greatest environmental hazards, threatening the lives of several hundred million people. Naturally occurring arsenic leaches into water from surrounding rocks and once in the water supply it is both toxic and carcinogenic to anyone drinking it. It is colourless and odourless and consequently people use it instead of more obviously polluted surface water. Natural arsenic pollution affects 21 countries across the world sometimes reaching a concentration more than ten times the WHO guidelines. Read more
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