Concentration of organic micropollutants in the atmosphere of Trieste, Italy
Concentration of organic micropollutants in the atmosphere of Trieste, Italy
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DOI：
10.1007/s11356-011-0696-9
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发表时间：
2012-07
影响因子：
5.8
通讯作者：
S. Mosca;G. N. Torelli;G. Tramontana;E. Guerriero;M. Rotatori;M. Bianchini
中科院分区：
文献类型：
--
作者：
S. Mosca;G. N. Torelli;G. Tramontana;E. Guerriero;M. Rotatori;M. Bianchini
研究目的PCDD/Fs、PCBs和PAHs是持久性有机污染物（POPs）中普遍存在的环境污染物，主要由人类活动和自然过程产生。这些污染物在的里雅斯特不同地点的发生率。PCDD/Fs的分布及其可能的排放sources.MethodsAir样品收集在不同的站点附近的工业区，在市中心，并在背景区域，使用大容量采样器配备了石英纤维过滤器和PUF。每次采样持续了一个week.ResultsThe浓度的有机氯污染物是一致的文献数据（PCDD/Fs和PCBs是5-38 fg TEQ/Nm 3和4-31 fg TEQ/Nm 3，分别），并发现一个明显的季节性趋势，在冬季浓度略高，在两个夏季运动的水平较低。此外，每个采样活动的异构体配置文件进行了比较的指纹的烧结厂，水泥厂，焚烧炉，主要的工业活动在Trieste.ConclusionsThe有机微污染物检测水平与文献数据一致。结果表明，污染物在的里雅斯特大气中分布均匀。在夏季和冬季，每个地点的多氯二苯并对二恶英/多氯二苯并呋喃指纹几乎相同，证实了附近烧结厂每年的排放量。
PurposePCDD/Fs, PCBs, and PAHs, ubiquitous environmental pollutants which are part of the POPs, are mainly produced by anthropogenic activities as well as by natural processes. Occurrences of these pollutants in different sites in Trieste are presented. PCDD/Fs distribution and their possible emission sources are discussed.MethodsAir samples were collected in different sites near the industrial area, in the city center, and in a background area, using a high-volume sampler equipped with a quartz fiber filter and a PUF. Each sampling lasted a week.ResultsThe concentrations of the organochlorinated pollutants are consistent with literature data (ΣPCDD/Fs and Σdl-PCBs were 5–38 fg TEQ/Nm3and 4–31 fg TEQ/Nm3, respectively), and an apparent seasonal trend was found with slightly higher concentrations in the winter and lower levels in both summer campaigns. Moreover, the isomer profile of each sampling campaign was compared to the fingerprint of a sintering plant, a cement plant, and an incinerator, the main industrial activities in Trieste.ConclusionsThe organic micropollutants were detected in levels consistent with literature data. The results show that the pollutants are uniformally distributed in the atmosphere of Trieste. PCDD/F fingerprints in each site remained almost identical during summer and winter, confirming the yearly prevalence of the emissions from the nearby sintering plant.