Cyanide

Industrial compound

Limit values

WHO Limit

500 µg/L

EU Limit

50 µg/L

US Limit

200 ppb

EWG Limit

150 ppb

Ratings

Distillation
Carbon filters
Membrane filters

References

  1. 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)