煤焦油瀝青行業(yè)職業(yè)健康風(fēng)險評估
發(fā)布時間:2018-04-21 03:21
本文選題:煤焦油瀝青(CTP) + 化學(xué)物半定量風(fēng)險評估法。 參考:《中國公共衛(wèi)生》2016年06期
【摘要】:目的評估煤焦油瀝青(CTP)生產(chǎn)、加工行業(yè)內(nèi)CTP主要暴露工種的職業(yè)健康風(fēng)險水平,為職業(yè)健康風(fēng)險管理提供依據(jù)。方法于2015年7月選取2家炭素廠、1家煤焦油生產(chǎn)廠為研究對象,對主要暴露崗位的空氣樣本采集并檢測,每天采集8 h,連續(xù)采集3 d;收集CTP的毒理學(xué)、流行病學(xué)等文獻(xiàn)資料,采用新加坡化學(xué)物半定量風(fēng)險評估法、職業(yè)危害風(fēng)險指數(shù)評估法及相對危險度(RR)、標(biāo)化率比率(SRR)等指數(shù)對CTP的職業(yè)健康風(fēng)險進(jìn)行評估。結(jié)果炭素廠成型及焙燒車間設(shè)備的自動化、密閉化程度較低,CTP煙逸散較為嚴(yán)重,11個崗位的CTP時間加權(quán)平均濃度均遠(yuǎn)超過中國標(biāo)準(zhǔn)限值0.2 mg/m3;煤焦油加工廠裝置為露天布置,出料位及皮帶運(yùn)輸機(jī)旁設(shè)有噴淋裝置,2個崗位的CTP暴露水平(CTWA)為26.3和7.4 mg/m~3,分別超過限值130倍和37倍;采用上述2種風(fēng)險評估法對13個崗位進(jìn)行評估,結(jié)果顯示,主要暴露工種的職業(yè)健康風(fēng)險等級均為很高風(fēng)險;以RR和SRR指數(shù)進(jìn)行風(fēng)險評估的結(jié)果顯示,炭素廠和油氈廠作業(yè)人員的致肺癌風(fēng)險等級為中等至很高風(fēng)險等級。結(jié)論炭素生產(chǎn)企業(yè)、煤焦油加工廠及油氈廠生產(chǎn)廠CTP主要暴露崗位的職業(yè)健康風(fēng)險等級已處于中等以上風(fēng)險,建議采取相應(yīng)的預(yù)防措施。
[Abstract]:Objective to evaluate the occupational health risk level of CTP in coal tar tar pitch production and processing industry, and to provide basis for occupational health risk management. Methods in July 2015, 2 carbon plants and 1 coal tar production plant were selected as the research objects. The air samples of the main exposed positions were collected and tested for 8 hours a day for 3 consecutive days, and the toxicology and epidemiology of CTP were collected. The occupational health risk of CTP was evaluated by using Singapore chemical semi-quantitative risk assessment method, occupational hazard risk index assessment method and relative risk index (RRN), standard rate ratio (SRR) and so on. Results the automation of the equipment in the molding and roasting workshop of the carbon plant was more serious than that of the sealing degree. The weighted average concentration of CTP time in 11 positions was far higher than the Chinese standard limit of 0.2 mg / m ~ 3. The coal tar processing plant was arranged in the open air. The CTP exposure level of 2 posts was 26.3 and 7.4 mg / m ~ (-1), 130 times and 37 times higher than the limit, respectively. 13 posts were evaluated by the two risk assessment methods, and the results showed that, The occupational health risk levels of the main exposed jobs were all very high, and the risk assessment results of RR and SRR index showed that the lung cancer risk level of workers in carbon plant and linoleum factory was medium to very high. Conclusion the occupational health risk level of the main exposed positions of CTP in carbon production enterprises, coal tar processing plants and linoleum factories is at the middle or above risk, and the corresponding preventive measures should be taken.
【作者單位】: 中國疾病預(yù)防控制中心職業(yè)衛(wèi)生與中毒控制所職業(yè)流行病學(xué)與風(fēng)險評估室;
【分類號】:R131
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