Aerial applicators, exposure monitoring

Acheta domestlcus. toxicity of aminocarb, 218-20 Additives for spray dispersion performance, 100-15 ecotoxicity, 351-61 Adsorption of pesticides in aquatic sediment, 267 in soil, 195-96 Aerial applicators, exposure monitoring, 323-29... 

The Aerial Flagger. The aerial flagger, who had the highest HDE of all workers monitored, is not now commonly used in the aerial applications of pesticides to crops. Still, a flagger is sometimes used in special situations, and was therefore monitored. The flagger was the only worker that had a discernibly different exposure for different application rates. For example, the total HDE for XLR was 606 mg/h for a rate of 2 lb Al/acre and 408 mg/h for a rate of 1 lb Al/acre. 

Maddy (16) monitored dermal and Inhalation exposures for mlxer/loaders, flaggers and pilots associated with the aerial application of mevlnphos, using Che methods described In Peoples (15). In this study the mlxer/loaders operating closed transfer systems wore gloves but others associated with the spray operation did not. The mlxer/loaders received 74% of their total dermal exposure on Che hands, flaggers received 42% and pilots received 27%. Pilots received a considerably lower proportion of Che total exposure Co the hands Chan In the study by Peoples (15). 

Everhart (17) monitored 8 mlxer/loaders who each prepared one tankful of benomyl for aerial application. Five gauze pads and cotton gloves were used to measure exposure. Most workers wore additional protective gloves over the cotton gloves. Regardless of this additional precaution 96% of the total dermal exposure was found on Che cotton gloves. In almost all other cases Che forearm patches had the highest levels of contamination. 

In several studies carried out during aerial agricultural applications, a large portion of the total exposure was also seen on the hands, especially for mlxer/loaders. Peoples (15) monitored the potential dermal and Inhalation exposure of mlxer/loaders, pilots... 

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