ISSN:
1432-0703
Source:
Springer Online Journal Archives 1860-2000
Topics:
Energy, Environment Protection, Nuclear Power Engineering
,
Medicine
Notes:
Abstract Even though carbamate insecticides are becoming increasingly important for insect control on field crops, few studies have focused on their removal from contaminated textiles. Hence, this study evaluated the effectiveness of selected laundering procedures in removing carbofuran and methomyl insecticides from 100% cotton and 100% polyester medium weight fabrics. After treating the fabric samples with 4.0% (w/w) aqueous solutions of Furadan® 4F Insecticide (carbofuran) or Lannate® L Insecticide (methomyl), they were air dried and laundered, using three detergents [All® (non-ionic), Tide® (anionic), and Wisk® (anionic and non-ionic)] plus water only at two temperatures (warm: 49°C wash/40°C rinse and hot: 60°C wash/49°C rinse). The percentages of insecticide residue remaining on the fabrics after laundering were analyzed by high performance liquid chromatography (HPLC) with a fluorescence detector, and bioassay tests withDrosophilia malanogaster Meigen were used to evaluate their relative toxicity. All of the laundering procedures, including the water only wash, were effective in removing ⩾99% of the carbamate insecticides from both the cotton and polyester fabrics. Among the insecticide/fabric types evaluated, the highest percentages of residue remaining were associated with the polyester fabrics treated with methomyl. After 72 hr, fruit fly mortality occurred on only the methomyl treated polyester laundered in warm water. These findings support those reported in previous studies on the ease with which carbamate contaminants are removed from textiles, compared to other insecticide types.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01055158
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