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[目的]综合评估宁波市某黑色金属铸造企业接触矽尘岗位的职业健康风险,探讨职业危害风险指数法和国际采矿与金属委员会(ICMM)职业健康风险评估方法在该企业主要岗位职业健康风险评估中的适用性.[方法]应用职业危害风险指数法和ICMM职业健康风险评估法(分为风险评级表法和赋值定量法)对该企业开展职业卫生调查,并对产生矽尘的关键岗位开展风险评估.[结果]该企业为一家中型企业,职业病防护设施效果不良,制芯岗位和成型岗位矽尘呼吸性粉尘8h时间加权平均浓度分别为0.92 mg/m3和0.79 mg/m3,超过职业接触限值.职业危害风险指数法评估结果显示制芯岗位和成型岗位接触矽尘致职业健康危害的等级为中度危害,需要采取减少接触时间、加强防护等控制措施,其余岗位为轻度危害.ICMM风险评级表法评估发现制芯岗位和成型岗位接触矽尘引起最常见危害和最严重危害的风险等级为高风险,其余岗位为中风险;ICMM赋值定量法对5个关键岗位的评估结果均为“不可接受的风险”,需要采取“立即关停”的措施.[结论] ICMM风险评级表法评估的健康危害明确,评估结果和实际情况较为符合,在该企业接触矽尘岗位的职业健康风险评估中有较好的适用性.“,”[Objective] To assess the occupational health risk in silica dust-exposod worksites of a ferrous metal foundry in Ningho City,and to explore the applicability of the occupational health risk assessment method recommended by the International Council on Mining and Metals (ICMM) and occupational hazard risk index method.[Methods] A field investigation with risk assessment for silica dust-exposed worksites was conducted using the occupational hazard risk index method and the ICMM occupational health risk assessment method using (risk rating table or risk assessment matrix),respectively.[Results] The medium-sized enterprise was equipped with less effective occupational protection devices.The 8 h time-weighted average concentrations of silica dust in the air of coremaking and moulding worksites were 0.92 mg/m3 and 0.79 mg/m3,respectively,exceeding the national occupational exposure limit (OEL).The risk levels of coremaking and moulding worksites were moderate according to the occupational hazard risk index method,indicating a requirement for control measures such as less exposure time and strengthened protection,and the risk levels of the other worksites were mild.The risk levels of coremaking and moulding worksites were high using the ICMM risk rating table,the levels of the other worksites were medium.All five worksites had“intolerable risk” based on the ICMM risk assessment matrix,which required immediate shutdown.[Conclusion] The ICMM risk rating table is appropriate to assess the occupational health risk of key worksites in the ferrous metal foundry because it shows clear health risks and the assessment results are consistent with actual observed situation.