Limit values

WHO Limit

3 µg/L

EU Limit

5 µg/L

US Limit

5 ppb

EWG Limit

0.04 ppb


Carbon filters
Membrane filters


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  2. M Chandrashekara and Avadhesh Yadav,
    Water desalination system using solar heat - A review, Renewable and Sustainable Energy Reviews (2017)
  3. Sunil Wimalawansa,
    Effective Solution of Providing Clean Water for Human Needs in Developing Countries Purification of Contaminated Water with Reverse Osmosis:, International Journal of Emerging Technologies (2013)