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. 2020 Aug;157:111304. doi: 10.1016/j.marpolbul.2020.111304. Epub 2020 May 29.
Total petroleum hydrocarbons (TPH), n-alkanes, petroleum biomarkers, and polycyclic aromatic hydrocarbons (PAHs) were analyzed in the intertidal sediments of Burrard Inlet, Vancouver, British Columbia, Canada. Most of the sampling sites had low TPH (<40 μg/g). Only 10% of sampling sites, located nearby a harbour and densely populated areas, had relatively high TPH (<260 μg/g). Main biogenic n-alkanes were present in all the sites, except for the main petrogenic input in the sample from the upper intertidal zone (UIZ) of the Maplewood Mudflats. Most sites had trace amounts of petroleum biomarkers. Mixed pyrogenic and petrogenic inputs contributed to PAHs at most sites. PAHs did not show potential toxicity to benthic organisms at most sites; however, possible negative effects from some of the detected PAHs were found for the samples from the UIZs of the Maplewood Mudflats and Labour View Park, and from the lower intertidal zone (LIZ) of Gates Park.
在加拿大不列颠哥伦比亚省温哥华的布勒内湾潮间带沉积物中分析了总石油烃 (TPH)、正烷烃、石油生物标志物和多环芳烃 (PAHs)。大多数采样点的 TPH 含量较低（<40μg/g）。只有 10%的采样点位于港口和人口密集区附近，TPH 含量相对较高（<260μg/g）。除了 Maplewood 泥滩上部潮间带（UIZ）样品中的主要生源正烷烃外，所有样品中均存在主要的生物成因正烷烃。大多数样品中痕量存在石油生物标志物。大多数采样点的 PAHs 主要来自混合的热成因和成因输入。在大多数采样点，PAHs 并未显示对底栖生物的潜在毒性；然而，在 Maplewood 泥滩和 Labour View 公园的 UIZ 以及 Gates 公园的下部潮间带（LIZ）的采样中，发现了一些检测到的 PAHs 可能产生负面影响。
