Sheep dippers

Buchanan, D. et al., Estimation of cumulative exposure to organophosphate sheep dips in a study of chronic neurological health effects among United Kingdom sheep dippers, Occup. Environ. Med., 58, 694-701, 2001. 

Not every person who has been chronically exposed to OP exhibits symptoms. For example, of 612 sheep dippers exposed to diazinon twice a year for 3 days at a time for 40 years, only 19% reported symptoms. In a control group of ceramics workers, who had not been exposed to OPs, 5% reported similar symptoms (Pilkington et al, 2001). 

Fertilizer makers/users Sheep dippers Watch diode... 

A series of studies of fanners in the United Kingdom who regularly dip their sheep into solutions of OP pesticides for the control of parasites raised concern about persistent effects of subsymptomatic expo.sure. Stephens er ai (1995) showed that sheep dippers" performed more poorly on... 

Fig. 2. Dermal contamination as revealed by fluorescence - contamination of a sheep-dipper who wore a woUen cardigan and woUen trousers, but no waterproofs (Roff 1997)...

There is limited evidence that PONl status may affect susceptibility to OP insecticides in humans. A series of studies has investigated the role of PONl in modulating chronic central and/or peripheral nervous system abnormalities, at times referred to as "dipper s flu," associated with exposure of sheep dippers to diazinon. Diazoxonase activity was initially found to be lower... 

What mechanism, other than effects on acetylcholinesterase, play a causative role in the development of ill health in sheep dippers ... 

Pilkington, A., Buchanan, D., Jamal, G.A., Gillham, R., Hansen, S., Kidd, M., Hurley, J.F., Soutar, C.A. (2001). An epidemiological study of the relations between exposure to organo-phosphate pesticides and indices of chronic peripheral neuropathy and neuropsychological abnormalities in sheep farmers and dippers. Occup. Environ. Med. 58 702-10. 

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