希腊塞萨洛尼基地区可吸入颗粒物（PM10）的离子组成。
Ionic composition of PM(10) in the area of Thessaloniki, Greece.
作者信息
Tsitouridou R, Voutsa D, Kouimtzis Th
机构信息
Laboratory of Analytical Chemistry, Chemical Engineering Department, Aristotle University, 54124 Thessaloniki, Greece.
出版信息
Chemosphere. 2003 Aug;52(5):883-91. doi: 10.1016/S0045-6535(03)00313-8.
Airborne particulate matter (PM(10)) was collected from July 1997 to July 1998 at three locations in the city of Thessaloniki. PM(10) samples were analyzed for Cl(-), NO3(-), SO4(2-), Ca(2+), Mg(2+), Na(+), K(+) and NH4(+). The average PM(10) concentrations were found similar in all three sites with higher values in cold period. The ionic content comprised the 17-23% of the PM(10) mass and sulfate made up the 35-38% of the PM(10) ionic content with an average concentration of 4.80-7.26 microg m(-3). Good correlation was found for SO4(2-) and NO3(-) with Ca(2+), Mg(2+) and Cl(-). Two factors were found to influence the variance of ionic constituents in PM(10) by using factor analysis. Data evaluation considering wind direction showed that higher PM(10) and other ionic concentrations are associated with calm conditions, suggesting influences of local sources.
1997年7月至1998年7月期间，在塞萨洛尼基市的三个地点采集了空气中的颗粒物（PM(10)）。对PM(10)样本进行了Cl(-)、NO3(-)、SO4(2-)、Ca(2+)、Mg(2+)、Na(+)、K(+)和NH4(+)的分析。发现所有三个地点的PM(10)平均浓度相似，寒冷时期的值更高。离子含量占PM(10)质量的17 - 23%，硫酸盐占PM(10)离子含量的35 - 38%，平均浓度为4.80 - 7.26微克/立方米。发现SO4(2-)和NO3(-)与Ca(2+)、Mg(2+)和Cl(-)之间具有良好的相关性。通过因子分析发现有两个因素影响PM(10)中离子成分的变化。考虑风向的数据评估表明，较高的PM(10)和其他离子浓度与平静天气条件相关，这表明存在本地源的影响。
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