某铸钢厂是日伪时期遗留下来的老厂,设备陈旧,生产工艺落后,环境污染严重。粉尘浓度可高达246mg/m~3。历年来已诊断矽肺病人158名,“ 0+”者459名,占全厂接尘职工的28.5％。至今该厂已有46名矽肺病人死亡。由此可见粉尘危害是比较严重的。 近年来,由于厂领导采取了改革工艺(以 A steel plant is the legacy of the Japanese and puppet factories, outdated equipment, production processes behind the serious environmental pollution. Dust concentration up to 246mg / m ~ 3. Over the years have been diagnosed 158 silicosis patients, “0 +” 459, accounting for 28.5% of the factory dust workers. To date, 46 silicosis patients have died in the plant. This shows that the dust hazard is more serious. In recent years, due to the leadership of the factory has taken the reform process (to