التفاصيل البيبلوغرافية
| العنوان: |
Measuring Pesticide Availability And Transferability Using Rubber Latex Gloves of Strawberry Harvesters as a Potential Dosimeter. |
| المؤلفون: |
Gayatri Sankaran, Yanhong Li, Zhenshan Chen, Lopez, Terry, Li Cui, Song Wei-guo, Vega, Helen, Krieger, Robert I. |
| المصدر: |
International Journal of Toxicology (Sage); 2010, Vol. 29 Issue 1, p110-110, 2/5p |
| مستخلص: |
Pesticides are used in modern organic and conventional agriculture when growers chose to produce berries for paying customers rather than giving them away to pests. Low level pesticide exposures occur primarily due to hand contact with foliage residues. Strawberry harvesters frequently use light rubber latex gloves to reduce pesticide exposure, to cosmetically protect the skin from accumulation of dirt and juice, and as a food safety measure. Potential harvester exposure (mg/harvester-h) may be expressed as the product of dislodgeable foliar residues (DFR, mg/cm2), an empirical transfer coefficient (cm2/h) specific to strawberry harvesting, and the working period (h). However, only a portion of the DFR is transferred to harvesters who contact leaf surfaces during harvest. Our overall goal is to develop a simple, clear and reliable indicator of strawberry harvester exposure. The residues transferred from leaf surfaces to harvester gloves may be used to predict external potential harvester insecticide, fungicide and miticide exposure. Latex gloves have been randomly collected since 2005 as they are discarded by harvesters at strawberry farms in Santa Maria, CA. The highest average glove residues occur at the PHI (Pre-Harvest Interval). Residues from insecticides, fungicides and miticides have been detected in ethyl acetate extracts of gloves worn for 2 to 2.5 h work periods. Residues on gloves range from 19.7 to 0.001 mg/pair. Up to 8 residues may be detected in extracts. When leaf malathion DFRs were 0.025 µg/cm2 to 0.16 µg/cm2, the corresponding glove residues were about 1.67 mg/pair. The available residue will be a portion of the total glove residue during any work period. Since hands contribute 50% to 90% of total strawberry harvester pesticide exposure, glove residues may represent an indirect means to predict potential long-term, low-level harvester exposures. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
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