Pesticide exposure-induced Cholinesterase changes among small-scale farmers in Nakhon Ratchasima province

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Ekarat Sombatsawat
Teeraphun kaewdok
Itsaraporn Prasomsat
Wattasit Siriwong

Abstract

This study aimed to compare the different cholinesterase enzymes (Butyry- and acetyl-cholinesterase) and health illnesses between before and after pesticide application among 22 farmers in Phimai district, Nakhon Ratchasima province. A questionnaire was used to collect data by face-to-face interview and Test-mate Cholinesterase Test System (Model 400) was used for cholinesterase enzymes analysis. The finding indicated that farmers were male with an aged average of 49.80 years and graduated from primary school (81.82%). They had a farm average of 15.50 Rais and mostly used insecticides of 81.82% and herbicides of 18.18% for approximately 3 hours per day. The median (±SD) of butyry- and acetyl-cholinesterase enzymes were decreased from 1.60 (±0.31) U/mL to 1.32 (±0.49) U/mL (Normal>1.56) and 3.17 (±0.74) U/mL to 2.72 (±0.55) U/mL (Normal>2.92), respectively. Wilcoxon matched pairs signed-rank test analysis showed that levels of butyry- and acetyl-cholinesterase were significantly different between before and after pesticide application (p<0.01 and p<0.05, respectively). While, all symptoms of health illnesses were significantly different between before and after pesticide application (Wilcoxon signed-rank test, p<0.05). Therefore, the rising awareness of safety in practices and personal protective equipment selection during pesticide application among farmers should be implement to reduce acute and chronic health effects.

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References

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