Emergencies Science and Technology Section (ESTS), Environment & Climate Change Canada, Ottawa, ON, Canada.
Emergencies Science and Technology Section (ESTS), Environment & Climate Change Canada, Ottawa, ON, Canada.
Mar Pollut Bull. 2018 Aug;133:799-807. doi: 10.1016/j.marpolbul.2018.06.047. Epub 2018 Jun 22.
Total petroleum hydrocarbons (TPH), n-alkanes, petroleum-related biomarkers of terpanes and steranes, and polycyclic aromatic hydrocarbons (PAHs) were analyzed in the intertidal sediments in the Bay of Fundy, Nova Scotia/New Brunswick, Canada. Sites close to the harbour and more densely populated areas had higher TPH levels than other pristine areas. n-Alkanes presented a typical single bell-shape in n-C to n-C range and an obvious odd to even carbon preference. Most sites had trace amounts of petroleum biomarkers. Abundant non-alkylated PAHs and lower amounts of alkylated PAHs represented the major input of the incomplete combustion of solid (e.g., coal, coke, biomass, and coal tar) and liquid fuels. The toxicity estimation for PAHs indicates that they did not have potential toxicity to benthic organisms at most sampling sites. However, possible to probable negative effects from the measured PAH concentrations were found for the two samples from Courtenay Bay and Saint Andrews.
在加拿大新斯科舍省/新不伦瑞克省芬迪湾的潮间带沉积物中分析了总石油烃 (TPH)、正构烷烃、萜烷和甾烷的石油相关生物标志物以及多环芳烃 (PAHs)。靠近港口和人口密集地区的地点的 TPH 水平高于其他原始地区。正构烷烃在 n-C 到 n-C 范围内呈现典型的单钟形，并且具有明显的奇数到偶数碳偏好。大多数地点都有痕量的石油生物标志物。大量未烷基化的 PAHs 和较少量的烷基化 PAHs 代表了固体（如煤、焦炭、生物质和煤焦油）和液体燃料不完全燃烧的主要输入。对 PAHs 的毒性估计表明，在大多数采样点，它们对底栖生物没有潜在毒性。然而，在 Courtenay Bay 和 Saint Andrews 的两个样本中发现了可能来自所测 PAH 浓度的可能到极有可能的负面影响。
