Diquat

Pesticide

Limit values

WHO Limit

30 µg/L

EU Limit

Unknown.

US Limit

20 ppb

EWG Limit

6 ppb

Ratings

Distillation
Carbon filters
Membrane filters

References

  1. EWG,
    EWG Tap Water Database Contaminant list, https://www.ewg.org/tapwater/chemical-contaminants.php ()