家具行业VOCs排放系数测试与校正研究

Testing and Calibration of VOCs Emission Coefficient in Furniture Industry

挥发性有机化合物为大气环境污染物重点监控项目,污染物排放系数是污染源清单编制的支撑基础与重点,确定原则是优先本土实测并验证可信。结合家具行业大气污染物的排放特点进行挥发性有机化合物监测,识别排放浓度较高的特征污染物,分析统计苯、甲苯、二甲苯及浓度较高的其它前三种污染物,计算其排放系数。结果表明,总VOCs、苯、甲苯、二甲苯排放系数分别为0.252 kg/件、0.001 kg/件、0.007 kg/件、0.066 kg/件,远低于国家发布的木质家具挥发性有机物源排放系数,且各物质之间排放系数相差很大;建议国家相关部门在挥发性有机物源排放系数核算中结合实际情况,校正广东省佛山市家具行业总挥发性有机物排放系数为0.252 kg/件,将苯、甲苯、二甲苯等重点管控的特征污染排放系数分别校正为0.001 kg/件、0.007 kg/件、0.066 kg/件。

Volatile organic compounds (VOCS) are key monitoring items of atmospheric environmental pol-lutants, and pollutant emission coefficient is the supporting basis and key point for the compilation of pollutant source inventory. The determination principle is to give priority to local measurement and verify credibility. Combined with the emission characteristics of atmospheric pollutants in the furniture industry, VOCs monitoring was carried out to identify the characteristic pollutants with higher emission concentration;benzene, toluene, xylene and other three pollutants with high concentration were analyzed and counted, and calculate their emission coefficient. The results show that the emission coefficients of total VOCs, benzene, toluene and xylene are 0.252 kg/piece, 0.001 kg/piece, 0.007 kg/piece and 0.066 kg/piece respectively, which are far lower than the emission coefficients of VOCs of wood furniture released by the state, and the emission coefficients of each substance are very different. It is suggested that relevant national departments should correct the total voc emission coefficient of furniture industry in Foshan, Guangdong province to be 0.252 kg/piece in combination with the actual situation in the calculation of VOC source emission coefficient. The characteristic pollution emission coefficients of benzene, toluene and xylene under key control were corrected to 0.001 kg/piece, 0.007 kg/piece and 0.066 kg/piece respectively.