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近几年来煤矿的煤工尘肺发病有增加趋势。为摸清我县县办煤矿接尘人员煤工尘肺的发病情况,我们对县办四个煤矿进行了煤工尘肺发病的调查。现报告如下: 我们对90年底以前参加工作的接尘者和接尘三年调离者(包括退休职工)以及现有0~+和各期煤工尘肺者,拍摄X线胸片和进行卫生学调查。四个矿职工共1244人,应检1105人,实硷1016人,受检率91.95％。粉尘浓度为2.5～890.0mg/m~3,平均浓度为
In recent years coal miners have increased the incidence of pneumoconiosis. In order to find out the incidence of coal miners ’pneumoconiosis in coal miners in counties and counties, we conducted a survey on coal miners’ pneumoconiosis at four coal mines in the county. The report is as follows: We took radiographs of X-ray and hygiene for persons who took part in the work before the end of 1990 and those who took dust for three years (including retired workers) as well as the existing 0 to + Learn to investigate. Four mine workers a total of 1244 people, 1105 should be seized, the real base of 1016 people, the detection rate of 91.95%. Dust concentration of 2.5 ~ 890.0mg / m ~ 3, the average concentration of