PCBs and PAHs in sea-surface microlayer and sub-surface water samples of the Venice Lagoon (Italy)

被引:77
作者
Manodori, L
Gambaro, A [1 ]
Piazza, R
Ferrari, S
Stortini, AM
Moret, I
Capodaglio, G
机构
[1] Univ Venice, Dept Environm Sci, I-30123 Venice, Italy
[2] CNR, Inst Dynam Environm Proc, I-30123 Venice, Italy
[3] CNR, Inst Atmospher Sci & Climate, I-40129 Bologna, Italy
关键词
GC-MS; sea-surface microlayer; PAHs; PCBs; pollution; sub-surface water; Venice Lagoon;
D O I
10.1016/j.marpolbul.2005.08.017
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Polychlorinated biphenyls (PCBs) and polycyclic aromatic hydrocarbons (PAHs) are two classes of micropollutants intensively monitored and regulated due to their toxicity, persistency and wide diffusion. Their concentrations have been investigated in sea-microlayer (SML) and sub-surface water (SSW) samples collected at two sites of the Venice Lagoon, a fragile ecosystem highly influenced by industrial and anthropogenic emissions. The total Sigma PCB concentration varies from 0.45 ng/l to 2.1 ng/l in SSW while a clear enrichment is observed in the SML, where it ranges from 1.2 ng/l to 10.5 ng/l. The total Sigma PAH concentration shows marked differences between the two stations and varies from 12.4 ng/l to 266.8 ng/l in SSW; in SML it is more uniform and ranges from 19.6 ng/l to 178.9 ng/l. The enrichment factors are not larger than I for both pollutants in the 'dissolved' phase, while they are most significant for the 'particulate' phase (EPCB: 5-9; Sigma PAH: 4-14). (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码:184 / 192
页数:9
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