Analysis of O3 Pollution Characteristics and Sources of VOCs in Ningdong Energy Chemical Base
In this study,the pollution characteristics,ozone(O3)formation potential and pollution sources of atmospheric O3 and VOCs in Ningdong base were analyzed by using the monitoring data of near-surface O3 and its precursors(VOCs and NO2).The results show that the O3 formation process in Ningdong base is mainly controlled by VOCs.Alkanes,alkynes,OVOC,and olefins account for a relatively high proportion in VOCs.The olefin concentration accounted for 10.06%,but its contribution to O3 formation potential(OFP)was as high as 43.49%.Among them,propylene,ethylene,propionaldehyde,toluene,m/p-xylene,n-butane and isoprene were the key VCOs active substances for O3 prevention and control.Strengthening industrial sources,fuel volatilization,volatilization and emission of raw materials for industrial production and manufacturing,and motor vehicle exhaust were the key links of VOCs control in Ningdong base in summer.
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