Department of Pesticide, Key Laboratory of Pesticide Chemistry and Application, Plant Protection Institute of Chinese Academy of Agricultural Sciences, Ministry of Agriculture, Beijing 100193, People's Republic of China.
J Agric Food Chem. 2010 Jan 13;58(1):361-5. doi: 10.1021/jf902977a.
The gelatin capsule (gel cap) formulation of 1,3-dichloropropene (1,3-D) was developed as a potential means of reducing 1,3-D emissions. The objective of this study was to determine the distribution, emission, and leaching of 1,3-D after applying the gel cap in soil columns. Comparable 1,3-D soil gas concentrations were obtained between a conventional liquid injection control and the gel cap application with film treatment. When the soil surface was irrigated with 39.6 mm water per day during the first 4 days, 1,3-D soil gas concentration was higher than the film treatments at depths below 20 cm, but lower concentrations were observed at 0-15 cm depth. The application of 1,3-D gel cap relatively reduced total 1,3-D emission by about 41% compared to liquid injection with film cover, and total 1,3-D emission was only 0.13% for 1,3-D gel cap application with 4 days of irrigation without a tarp. The results indicated that 1,3-D gel cap could be a promising new technology for reducing environmental emissions and potential human exposure.
1,3-二氯丙烯（1,3-D）的明胶胶囊（凝胶胶囊）制剂被开发为减少 1,3-D 排放的一种潜在手段。本研究的目的是确定在土壤柱中应用凝胶胶囊后 1,3-D 的分布、排放和浸出情况。在采用薄膜处理的常规液体注射对照和凝胶胶囊应用中，获得了相当的 1,3-D 土壤气体浓度。在最初的 4 天内，每天对土壤表面进行 39.6 毫米的灌溉，在 20 厘米以下的深度，1,3-D 土壤气体浓度高于薄膜处理，但在 0-15 厘米的深度，浓度较低。与薄膜覆盖的液体注射相比，1,3-D 凝胶胶囊的应用使总 1,3-D 排放相对减少了约 41%，而在没有篷布的情况下，每天灌溉 4 天，1,3-D 凝胶胶囊的应用总 1,3-D 排放量仅为 0.13%。结果表明，1,3-D 凝胶胶囊可能是一种减少环境排放和潜在人体暴露的有前途的新技术。
