雨后土地泥濘,下田劳动而引起的接触性皮炎,在农村是常见的。但因其能自癒,故多不被重視,笔者做了一次調查,証实其危害較重,发病率高,现报告如下: 一、调查资料分析 1.起因:一、山区中学某班学生,在雨后下田給玉米追肥劳动中发病。此田是山坡地,于5月末春苗期曾追人粪一次。直到7月8日方降雨,据当地气象报告雨量达80毫米。9日校方組織学生进 Contact muddy after the rain, contact dermatitis caused by labor under the field, is common in rural areas. However, because of its self-healing, it is often not taken seriously, the author made a survey to confirm the more serious harm, the incidence is high, are as follows: First, the survey data analysis 1. Cause: a mountainous middle school students In the afternoon, after the rain to corn top dressing incidence of labor. This field is hillside, in the late May spring seedlings once chase manure. It rains until July 8, according to local weather reports of 80 millimeters of rainfall. On the 9th the school organizes students to enter