综合考虑国内外优先控制污染物筛选的方法,结合实际调查情况,制定了石家庄市大气中优先控制挥发性有机物筛选的原则。对检出率高、贡献率高,可能对人体健康存在潜在危害性的挥发性有机物作筛选,提出了包含20种化合物的优先控制名单,其中卤代烃7种,芳香烃5种,酯类3种,酮类2种,烯烃、醛类和硫化物各1种。从化合物的用途和应用领域分析,医药化工行业可能是石家庄市区大气中挥发性有机物的主要排放源。
In consideration of the screening method for priority control organic pollutants and monitoring da-ta of Shijiazhuang's air quality, a principle for screening volatile organic compounds ( YOCs) was developed. 20 compounds, including 7 halohydrocarbons, 5 aromatic hydrocarbons, 3 esters, 2 ketones, 1 alkene,1 aldehyde and 1 sulfide, were screened out from the YOCs with high detection and contribution rates, and high risks to health. The pharmaceutical industries who use these YOCs might be the major sources.