Characteristics of Organic Carbon and Elemental Carbon Emission Sources of Different Function Areas in Jiangbei New District during Winter
Abstract：In quest of the characteristics of carbonaceous aerosol sources in different functional areas of Jiangbei New District,Nanjing City,an investigation was carded out,in which elemental carbon (EC) and organic carbon (OC) in atmosphere were collected and analyzed in winter (8th-22nd January,2016) using PM2.5 samplers and hot/light carbon analyzer,respectively.The investigation presented the average concentrations of EC and OC (incl.primary organic carbon,POC and secondary organic carbon,SOC) in the District's different areas (incl.agriculture,waterway traffic,commercial,highway traffic and industrial areas).Of them the maximum concentrations of OC and SOC were in agricultural area,i.e.(16.1±6.4)μg/m3 and (4.9±3.3) μg/m3,respectively,which suggested that the pollution emissions in agricultural area made a great contribution to OC,especially SOC;the maximum concentrations of EC and POC appeared in industrial area,i.e.(4.5±2.1) μg/m3 and (11.0±5.0) μg/m3,respectively,which suggested that the emissions in industrial area contributed to elemental carbon most,especially to POC.In general,OC concentrations in commercial area,highway traffic and industrial areas,as well as EC concentrations in waterway traffic,highway traffic and commercial areas were rather high.The concentrations of EC grew notably faster than the concentrations of OC at the time when two pollution incidents took place during the investigation period.
Keywords：Jiangbei New Districtelemental carbon (EC)organic carbon(OC)emission source
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 85-91 )