Contamination of polycyclic aromatic hydrocarbons (PAHs) in surface sediments and plants of mangrove swamps in Shenzhen, China.
Contamination of polycyclic aromatic hydrocarbons (PAHs) in surface sediments and plants of mangrove swamps in Shenzhen, China.
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DOI：
10.1016/j.marpolbul.2014.02.025
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发表时间：
2014-08
影响因子：
5.8
通讯作者：
Feng-lan Li;Xiao-duo Zeng;Junda Yang;Kai Zhou;Q. Zan;A. Lei;N. Tam
中科院分区：
文献类型：
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作者：
Feng-lan Li;Xiao-duo Zeng;Junda Yang;Kai Zhou;Q. Zan;A. Lei;N. Tam
对中国深圳福田、坝光和水地三个红树林沼泽的沉积物、根和叶子中的 16 种多环芳烃 (ΣPAHs) 浓度进行了测定。福田的ΣPAHs平均浓度（4480ngg−1）显着高于坝光（1262ngg−1）和沃特兰（2711ngg−1）。 16种多环芳烃中，萘的浓度最高。根据菲/蒽和荧蒽/芘的比值，福田和沃特兰的PAHs主要来自于岩石来源和热解源，而八光区的PAHs主要来自热解源。叶子中积累了更多的多环芳烃，其 ΣPAHs 平均浓度 (3697 ng g−1) 和多环芳烃生物富集因子 (BCF) (>1.5) 均高于根部。福田采集的植物BCF值明显高于沃特兰采集的植物。这些结果表明，福田区多环芳烃污染问题应引起高度重视。
The concentrations of 16 individual and total polycyclic aromatic hydrocarbons (∑PAHs) in sediments, roots and leaves of three mangrove swamps in Shenzhen, China, namely Futian, Baguang and Waterlands, were determined. The mean concentration of ∑PAHs in Futian (4480 ng g−1) was significantly higher than that in Baguang (1262 ng g−1) and Waterlands (2711 ng g−1). Among the 16 PAHs, the concentration of naphthalene was the highest. Based on the ratios of phenanthrene/anthracene and fluoranthene/pyrene, PAHs in Futian and Waterlands came from petrogenic and pyrolytic sources, while Baguang was mainly from pyrolytic. More PAHs were accumulated in leaves, as reflected by its higher mean concentration of ∑PAHs (3697 ng g−1) and bioconcentration factor of PAHs (BCF) (>1.5) than that in roots. The BCF values in plants collected from Futian were significantly higher than that from Waterlands. These results indicated that more attention should be paid to the PAH contamination in Futian.