CAJ | 학술논문

为研究武汉市灰霾期间亚微米级细粒子(PM1.0)中水溶性离子特征,于2012年9月10日至10月30日期间,利用KS-303采样器,在武汉市郊区进行PM1.0常规/灰霾采样。使用离子色谱分析仪对采集的13个样品的10种水溶性离子(F-、Cl-、NO-3、NO-2、SO2-4、Na+、NH+4、K+、Mg2+和Ca2+)进行分析。结果显示,灰霾期PM1.0平均浓度101μg/m3,比非灰霾期高出81%左右；总水溶性离子(TWSI)平均浓度49.5μg/m3,比非灰霾期高出61%左右；SO2-4在灰霾期与非灰霾期浓度均最高,分别达到22.9μg/m3和14.8μg/m3,其次是NO-3和 NH+4 ,灰霾期间 K+和 Cl-百分含量有较明显升高；秋季 PM1.0呈酸性且酸性强弱与 PM1.0浓度有很好的正相关性；PM1.0中水溶性离子主要来自人为源,建筑扬尘和风沙尘也对其有一定贡献。
위연구무한시회매기간아미미급세입자(PM1.0)중수용성리자특정,우2012년9월10일지10월30일기간,이용KS-303채양기,재무한시교구진행PM1.0상규/회매채양。사용리자색보분석의대채집적13개양품적10충수용성리자(F-、Cl-、NO-3、NO-2、SO2-4、Na+、NH+4、K+、Mg2+화Ca2+)진행분석。결과현시,회매기PM1.0평균농도101μg/m3,비비회매기고출81%좌우；총수용성리자(TWSI)평균농도49.5μg/m3,비비회매기고출61%좌우；SO2-4재회매기여비회매기농도균최고,분별체도22.9μg/m3화14.8μg/m3,기차시NO-3화 NH+4 ,회매기간 K+화 Cl-백분함량유교명현승고；추계 PM1.0정산성차산성강약여 PM1.0농도유흔호적정상관성；PM1.0중수용성리자주요래자인위원,건축양진화풍사진야대기유일정공헌。
To investigate characteristics of water-soluble ions in ambient submicron aerosol particles (PM1.0) during an autumn haze episode in Wuhan, 13 samples were collected in suburb of Wuhan using KS-303 sampler from September 10th 2012 to October 30th 2012 covering normal and haze sampling campaign. Ion-chromatographic analyzer was applied for determining water soluble ions consisting of F-, Cl-, NO-3 , NO-2 , SO2-4 , Na+, NH+4 , K+, Mg2+ and Ca2+. The mean mass concentrations of PM1.0 and total water soluble ions (TWSI) during haze period were 101 μg/m3 and 49.6 μg/m3, approximately 81% and 61% higher than those of normal period, respectively. SO2-4 exhibited the absolutely highest concentrations in both haze and normal period reaching 22.9 μg/m3 and 14.8 μg/m3, respectively, which followed by NO-3 and NH+4 . Mass proportion of K+and Cl-increased obviously during haze sampling. PM1.0 atmospheric aerosol was identified to be acidic in autumn of Wuhan, and positive correlations was found between acidity and mass concentrations of PM1.0. Principal component analysis (PCA) was used for identification and evaluation of contributions of emission sources to water soluble ions in PM1.0. Anthropogenic sources were identified to be the most significant, and construction dusts and karaburans also made some contributions.