Division of Life Sciences, Rutgers University, 604 Allison Road, Piscataway, NJ 08854-8082, USA.
J Toxicol Environ Health A. 2012;75(5):272-87. doi: 10.1080/15287394.2012.652058.
The Raritan Bay Slag Site (New Jersey) was designated a Superfund site in 2009 because the seawall, jetties, and sediment contained lead (Pb). Our objective was to compare Pb and mercury (Hg) levels in biota and public perceptions of exposure at the Superfund and reference sites. Samples (algae, invertebrates, fish) were collected from the Raritan Bay Slag Site and reference sites and analyzed for Pb and Hg. Waterfront users were interviewed using a standard questionnaire. Levels of Pb in aquatic organisms were compared to ecological and human health safety standards. Lead levels were related to location, trophic level, and mobility. Lead levels in biota were highest at the western side of the West Jetty. Mean Pb levels were highest for algae (Fucus = 53,600 ± 6990 ng/g = ppb [wet weight], Ulva = 23,900 ± 2430 ppb), intermediate for grass shrimp (7270 ± 1300 ppb, 11,600 ± 3340 ppb), and lowest for fish (Atlantic silversides 218 ± 44 ppb). Within species, Pb levels varied significantly across the sampling sites. Lead levels in algae, sometimes ingested by individuals, were sufficiently high to exceed human safety levels. Mercury levels did not differ between the Superfund and reference sites. Despite the fence and warnings, people (1) used the Superfund and reference sites similarly, (2) had similar fish consumption rates, and (3) were not concerned about Pb, although most individuals knew the metal was present. The fish sampled posed no apparent risk for human consumers, but the algae did.
拉坦运河废渣场（新泽西州）于 2009 年被指定为超级基金场址，原因是海堤、突堤和沉积物中含有铅（Pb）。我们的目的是比较超级基金和参照场址生物群和公众对暴露的看法中铅和汞（Hg）的水平。从拉坦运河废渣场和参照场址采集藻类、无脊椎动物和鱼类样本，并对其进行 Pb 和 Hg 分析。使用标准问卷对滨水用户进行访谈。水生生物中的 Pb 水平与生态和人类健康安全标准进行了比较。Pb 水平与位置、营养级和移动性有关。生物群中的 Pb 水平在西突堤的西侧最高。藻类（Fucus=53600±6990ng/g=ppb[湿重]，Ulva=23900±2430ppb）的 Pb 水平最高，草虾（7270±1300ppb，11600±3340ppb）的 Pb 水平中等，鱼类（大西洋鲱鱼 218±44ppb）的 Pb 水平最低。在同种生物中，Pb 水平在采样点之间差异显著。藻类中的 Pb 水平足够高，有时会被个体摄入，超过人类安全水平。超级基金和参照场址的 Hg 水平没有差异。尽管有围栏和警告，人们（1）对超级基金和参照场址的使用方式相似，（2）鱼类食用率相似，（3）不担心 Pb，尽管大多数人知道这种金属存在。采样的鱼类对人类消费者没有明显的风险，但藻类有风险。
