Paraquat exposure
Reregistration Eligibility Decision (01.01.97)
US Environmental Protection Agency (EPA), Reregistration Eligibility Decision (RED): Paraquat Dichloride, pp. 56 & 111-112, Washington D.C. 1997
The US Environmental Protection Agency found that margins of exposure to paraquat for workers using low-pressure sprayers or backpack sprayers were ‘unacceptable’. It was concerned about the ‘practicality’ of adding another layer of personal protective equipment due to heat stress and comfort. Even with the addition of gloves the margin of exposure was not satisfactory. To reduce the health risks the concentration of the spray solution for backpack sprayers was limited at 0.23% for spot application1) and at 0.37% for non-spot application.
1) Spot treatment: application of restricted pesticide on the same day to an area below 0.1 acre (IANR 2002)
Reference: Institute of Agriculture and Natural Resources (IANR) Cooperative Extension, Pesticide laws and regulations, Nebraska 2002
Document
The US Environmental Protection Agency found that margins of exposure to paraquat for workers using low-pressure sprayers or backpack sprayers were ‘unacceptable’. It was concerned about the ‘practicality’ of adding another layer of personal protective equipment due to heat stress and comfort. Even with the addition of gloves the margin of exposure was not satisfactory. To reduce the health risks the concentration of the spray solution for backpack sprayers was limited at 0.23% for spot application1) and at 0.37% for non-spot application.
1) Spot treatment: application of restricted pesticide on the same day to an area below 0.1 acre (IANR 2002)
Reference: Institute of Agriculture and Natural Resources (IANR) Cooperative Extension, Pesticide laws and regulations, Nebraska 2002
Document
