Balla D, Papageorgiou A, Voutsa D
Environmental Pollution Control Laboratory, Department of Chemistry, Aristotle University, 541 24, Thessaloniki, Greece.
Environ Sci Pollut Res Int. 2014 Oct;21(20):12062-73. doi: 10.1007/s11356-014-3080-8. Epub 2014 Jun 13.
This study investigates the occurrence of carbonyl compounds in rainwater at the city of Thessaloniki, Northern Greece. The concentrations of carbonyl compounds (as sum of 14 compounds) ranged from 21.8 to 592 μg/L, mean concentration 119 μg/L. Formaldehyde, acetaldehyde, hexanal, glyoxal, and methylglyoxal were the dominant compounds. DOC concentrations in rainwater ranged from 0.46 to 21.3 mg/L. UV-Vis and fluorescence spectra characteristics showed variation among rain events. Carbonyl compounds were negatively correlated with temperature exhibited relatively higher concentrations in cold season. They also influenced by storm origin with higher concentrations under terrestrial air masses. Calm conditions enhance the concentrations of DOC. Wash out is an effective removal mechanism of DOC.
本研究调查了希腊北部塞萨洛尼基市雨水中羰基化合物的出现情况。羰基化合物（14种化合物的总和）浓度范围为21.8至592μg/L，平均浓度为119μg/L。甲醛、乙醛、己醛、乙二醛和甲基乙二醛是主要化合物。雨水中的溶解性有机碳（DOC）浓度范围为0.46至21.3mg/L。紫外可见光谱和荧光光谱特征在不同降雨事件中表现出差异。羰基化合物与温度呈负相关，在寒冷季节浓度相对较高。它们还受风暴源的影响，在陆地上空气团下浓度较高。平静条件会提高DOC的浓度。冲刷是DOC的一种有效去除机制。
