Anchorage Fish and Wildlife Field Office, 605 W. 4th Ave. Rm G61, Anchorage, AK 99501, United States.
Mar Pollut Bull. 2012 Oct;64(10):2129-34. doi: 10.1016/j.marpolbul.2012.07.031. Epub 2012 Aug 14.
Polycyclic aromatic hydrocarbon (PAH) levels were measured in sediments, bivalves and semi-permeable membrane devices (SPMDs) in the relatively pristine marine environment of Nelson Lagoon, Alaska. Most PAH levels in Nelson Lagoon were low, and similar to global background concentrations. Sampling media type can significantly influence conclusions of PAH contamination in the environment. Concentration of a broad size range of PAHs was observed in the tissues of blue mussels (Mytilus edulis). SPMDs collected some two- to three-ring PAHs from the dissolved water phase, while sediments collected five- to six-ring PAHs that were likely adsorbed onto particulate matter. Benzo(a)pyrene, a potent carcinogen, was found in mussels at levels similar to more industrialized harbors in Alaska.
在阿拉斯加相对原始的内尔森泻湖的海洋环境中，对沉积物、双壳类动物和半透过性膜装置（SPMD）中的多环芳烃（PAH）水平进行了测量。 内尔森泻湖的大多数 PAH 水平较低，与全球背景浓度相似。 采样介质类型会极大地影响环境中 PAH 污染的结论。 在贻贝（Mytilus edulis）的组织中观察到了广泛大小范围的 PAH 的浓度。 SPMD 从溶解的水相中收集了一些二至三环 PAH，而沉积物则收集了可能吸附在颗粒物上的五至六环 PAH。 在贻贝中发现了具有强致癌性的苯并（a）芘，其水平与阿拉斯加更工业化的港口相似。
