Good rotenone stewardship results from the prudent use of the product by taking responsibility of reducing environmental impacts. Consistent with this, rotenone moving off-site typically in flowing streams must be deactivated. Rapid deactivation is achieved with the addition of potassium permanganate (KMnO4) in liquid or solid form. Most liquid applications of KMnO4 use a reservoir with a metering devise to dispense a 2.5% w/v solution at a constant measurable rate. However, in many cases, it is preferable to apply granular KMnO4 using a metering devise like an auger.
Multiple suppliers are available for KMnO4 product. One potential source is: