CAJ | 학술논문

采用DRI Model 2001A热/光碳分析仪测定了2011年南京地区大气PM1.1中OC、EC的含量,并具体探讨了其来源.结果表明,南师OC、EC年均浓度分别为10.10μg·m-3、2.52μg·m-3,南化分别为11.22μg·m-3、3.12μg·m-3,南化污染相对严重.夏季两地OC、EC含量较低,而冬春季较高,这与冬春季燃煤量增加,并且受内陆西风及逆温的影响,污染物集中在南京市上空不易扩散有关.两地PM1.1中SOC/TOC均在夏季较高,冬季最低.秋季SOC和O3有较好的相关性,表明秋季光化学反应是SOC的重要生成途径.
채용DRI Model 2001A열/광탄분석의측정료2011년남경지구대기PM1.1중OC、EC적함량,병구체탐토료기래원.결과표명,남사OC、EC년균농도분별위10.10μg·m-3、2.52μg·m-3,남화분별위11.22μg·m-3、3.12μg·m-3,남화오염상대엄중.하계량지OC、EC함량교저,이동춘계교고,저여동춘계연매량증가,병차수내륙서풍급역온적영향,오염물집중재남경시상공불역확산유관.량지PM1.1중SOC/TOC균재하계교고,동계최저.추계SOC화O3유교호적상관성,표명추계광화학반응시SOC적중요생성도경.
The concentrations of OC and EC in PM1. 1 collected from Nanshi ( NS) and Nanhua ( NH) in 2011 were analyzed using DRI Model 2001A Thermal Optical Carbon Analyzer. In addition, source apportionment was simultaneously evaluated. The results showed that the annual average concentrations of OC and EC in PM1. 1 were 10. 10 μg·m-3 and 2. 52 μg·m-3 in NS area, and 11. 22 μg·m-3 and 3. 12 μg·m-3 in NH area, respectively. This result indicated that OC and EC pollution in NH was more serious than that in NS area. Meanwhile, the concentrations of OC and EC in winter and spring were obviously higher compared to those in summer in these two sampling sites, which was mainly ascribed to the increased coal combustion and the unfavorable emission condition of air pollutants in summer and spring. We noted that the SOC/TOC value was the highest in summer and the lowest in winter. In addition, the SOC concentration was observed to show a positive correlation with ozone concentrations, which indicated that the photochemical reaction was a main way of SOC formation in autumn.