Perfluorinated compounds (PFCs) have been detected in different environmental matrices across the globe. There is an increasing interest in studying distribution, behavior, fate and risks of PFCs in the environment. In the present study, PFC concentrations and profiles were investigated in surface water (tidal shrimp pond and Deep Bay water; n=7) and biota including shrimps (n=4), fishes (n=29) and waterbirds (Grey Heron and Chinese Pond Heron; n=6) from tidal shrimp ponds of Mai Po Marsh Nature Reserve (MPMNR) in Hong Kong. A solid phase extraction (SPE) method was used for the analysis of water samples, whereas an ion-pairing extraction method with Envi-Carb and SPE cleanup were used for the analysis of biota samples. Preliminary results showed that PFCs (i.e. PFOS, PFHxS, PFBS, PFDA, PFNA, PFOA, PFHpA, PFHxA) were present in Deep Bay water (<0.01-4 ng/L) and shrimp pond water (<0.01-8.4 ng/L); none of the long-chain PFCs (C11-C18) were detected in water samples (<0.1 ng/L). Four long-chain PFCs (i.e. PFDoDA, PFUnDA, PFOS, PFDA) were found in shrimp (<0.25-1.31 ng/g ww) and fish tissues (<0.25-5.3 ng/g ww). PFOS is the dominant PFC, followed by PFUnDA, in biota. Bioconcentration factors (BCFs) were estimated for shrimp (PFOS: 319-509, PFDA: 209-650) and fish (PFOS: 1180-2650, PFDA: 837-8230), which were comparable to those reported for the European Arctic and the Ganges River Basin.
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机译：在全球的不同环境基质中检测到全氟化合物（PFC）。对环境中PFCS的分布，行为，命运和风险越来越兴趣。在本研究中，在地表水（潮虾池塘和深海湾水中; N = 7）和Biota（包括虾（n = 4），鱼（n = 29）和水鸟（灰苍鹭和中国人池塘苍鹭; n = 6）来自香港麦波沼泽自然保护区（MPMNR）的潮汐虾池塘。用于水样的固相萃取（SPE）方法用于分析水样，而具有Envi-Carb和SPE清洁的离子配对萃取方法用于分析Biota样品。初步结果表明，深海湾水（<0.01-4 ng / L）和虾池水（<0.01-8.4 ng / L. ）;在水样中检测到长链PFC（C11-C18）（<0.1ng / L）。在虾（<0.25-1.31 ng / g ww）和鱼组织（<0.25-5.3ng / g ww）中发现了四种长链PFCs（即pfdoda，pfOrda，pfos，pfola）。 PFOS是占主导地位的PFC，其次是Pfunda，Biota。养殖的生物浓缩因子（BCFS）估计（PFO：319-509，PFDA：209-650）和鱼（PFO：1180-2650，PFDA：837-8230），与欧洲北极和欧洲北极的人相当恒河流域。
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