1974年，在美国曾有使用三氯杀螨醇作为杀螨剂历史的土壤中的三氯杀螨醇残留情况。

Dicofol residues in United States soils having a known history of its use as a miticide, 1974.

作者信息

Lyman W R, Anderson R J

出版信息

Pestic Monit J. 1979 Sep;13(2):72-4.

Abstract

Soil samples were collected from a total of 21 sites in California, Washington, Florida, Pennsylvania, and Michigan. Dicofol (Kelthane) miticide had been applied at various times over a 5-year period to 17 of the sites; four sites had received no applications. Samples were collected at 0-75-mm and 75-150-mm depths, and submitted to gas-liquid chromatographic analysis. Samples from only four of the 17 treated sites contained mean residues equal to or exceeding 2.00 ppm. Residues in all cases were only a small fraction of the total amount applied. Apparently, a mechanism for the dissipation of dicofol exists, but it is unidentified at this time.

摘要

从加利福尼亚州、华盛顿州、佛罗里达州、宾夕法尼亚州和密歇根州的总共21个地点采集了土壤样本。三氯杀螨醇（开乐散）杀螨剂在5年期间的不同时间施用于其中17个地点；4个地点未施用过。在0 - 75毫米和75 - 150毫米深度采集样本，并进行气液色谱分析。在17个施药地点中，只有4个地点的样本平均残留量等于或超过2.00 ppm。在所有情况下，残留量仅占施用量的一小部分。显然，存在三氯杀螨醇的消散机制，但目前尚未明确。