Nygren O, Nilsson C A, Lindahl R
National Institute of Occupational Health, Research Department Umeå, Sweden.
Ann Occup Hyg. 1992 Oct;36(5):509-17. doi: 10.1093/annhyg/36.5.509.
CCA-impregnated timber contains copper, chromium and arsenic (CCA), and occupational exposure to wood dust as well as the CCA compounds may occur in work with such timber. Dust from commercially available impregnated wood has been found to contain hexavalent chromium, which is regarded as a carcinogen. Apart from determinations of the total amounts of the CCA compounds, specific determination of hexavalent chromium is therefore essential. Selective methods have been applied for control of the work environment in six joinery shops. The mean exposure to wood dust was found to be below 1 mg m-3. The mean airborne concentration of arsenic around various types of joinery machines was in the range from 0.54 to 3.1 micrograms m-3. No hexavalent chromium was detected in any samples and no increased concentrations of arsenic were found in urine from the workers. The presence of arsenic in the work-room air must be considered for appropriate assessment of the occupational environment in joinery shops.
铬化砷酸铜处理过的木材含有铜、铬和砷（铬化砷酸铜），在使用这种木材的工作中可能会发生职业性接触木屑以及铬化砷酸铜化合物的情况。已发现市售浸渍木材的粉尘含有六价铬，六价铬被视为致癌物。因此，除了测定铬化砷酸铜化合物的总量外，六价铬的特定测定至关重要。已应用选择性方法对六家细木工车间的工作环境进行监测。发现木屑的平均接触量低于1毫克/立方米。各类细木工机械周围空气中砷的平均浓度在0.54至3.1微克/立方米范围内。在任何样品中均未检测到六价铬，且工人尿液中砷的浓度也未升高。在细木工车间职业环境的适当评估中，必须考虑工作场所空气中砷的存在情况。
