山东大学学报 (医学版) ›› 2021, Vol. 59 ›› Issue (12): 87-95.doi: 10.6040/j.issn.1671-7554.0.2021.1218
曹萌,王丽珩,彭秀苗,崔亮亮
CAO Meng, WANG Liheng, PENG Xiumiao, CUI Liangliang
摘要: 目的 分析大气细颗粒物(PM2.5)中多环芳烃浓度特征,并评估PM2.5中多环芳烃吸入途径的慢性健康风险。 方法 2016~2020年在济南市市中区和历城区两监测点每月定期开展PM2.5及其萘、苊烯、芴、苊、菲、蒽、荧蒽、芘、、苯并[a]蒽、苯并[b]荧蒽、苯并[k]荧蒽、苯并[a]芘、二苯并[a,h]蒽、苯并[g,h,i]苝、茚并[1,2,3-cd]芘等16种多环芳烃的成分监测;参照《化学物质环境健康风险评估技术指南》(WS/T 777-2021)进行大气PM2.5中多环芳烃对成人慢性健康风险评估。 结果 2016~2020年市中区共开展监测448 d,历城区共开展监测442 d,历城区萘、苊烯、荧蒽、芘、、苯并[a]蒽、苯并[b]荧蒽、苯并[k]荧蒽、苯并[a]芘、二苯并[a,h]蒽、苯并[g,h,i]苝、茚并[1,2,3-cd]芘平均浓度水平大于市中区,差异有统计学意义(P<0.05),两监测点多环芳烃浓度自2016年以来呈逐年降低趋势,且呈现出明显的季节性变化规律,冬季为污染最严重的季节;两监测站点苯并[a]蒽、苯并[b]荧蒽、苯并[k]荧蒽、苯并[a]芘、二苯并[a,h]蒽、茚并[1,2,3-cd]芘的致癌风险均有一定的比例超过风险推荐值1×10-6,苯并[a]芘的慢性非致癌风险也均有一定的比例超过风险推荐值1。 结论 十三五期间济南市大气PM2.5中多环芳烃的浓度呈逐年降低趋势,但PM2.5中苯并[a]蒽、苯并[b]荧蒽、苯并[k]荧蒽、苯并[a]芘、二苯并[a,h]蒽、茚并[1,2,3-cd]芘均有一定的健康风险,应在今后的空气污染治理中给予重点关注。
中图分类号:
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