广州典型印刷企业VOCs排放特征及环境影响和健康风险评价

本文以广州市典型印刷企业为研究对象，通过对各排放环节的浓度和组分的全面统计和综合分析，深入探讨广州市该行业VOCs排放特征、环境影响及人体健康风险.结果表明，印前环节车间VOCs浓度为3.51~73.57mg/m³，印刷环节车间VOCs浓度为0.86~435.10mg/m³，印后环节车间VOCs浓度为0.05~221.93mg/m³，废气治理设施出口浓度为4.28~66.84mg/m³，处理效率为3.01%~54.90%；且VOCs物种以芳香烃类、醇醚类和酯类为主，平均臭氧生成潜势为111.09mg/m³，其中芳香烃类物质对环境影响贡献和人体健康风险较大，建议加强针对性控制.

VOCs emission characteristics,environmental impact and health risk assessment of typical printing enterprises in Guangzhou

Taking typical printing enterprises in Guangzhou as the research objects, this paper discussed the emission characteristics, environmental impact and human health risks of VOCs in this industry based on the comprehensive statistical analysis of the concentrations and components of each emission stages. The results showed that the VOCs concentration was 3.51~73.57mg/m³ in the pre-press workshop, 0.86~435.10mg/m³ in the printing workshop, 0.05~221.93mg/m³ in the post-press workshop, respectively. The concentration at outlet of the exhaust-gas treatment facility was 4.28 ~ 66.84mg/m³ with treatment efficiencies ranging between 3.01% and 54.90%. The main emitted VOCs species consisted of aromatic hydrocarbons, alcohol ethers and esters, and the average ozone formation potential was 111.09mg/m³. Since aromatic hydrocarbons poses greater environmental impacts and health risks, it was recommended that the targeted control of aromatic hydrocarbons should be strengthened.