港口沉积物中碳氢化合物的分布、来源及潜在毒性：巴西东南部的区域评估
Distribution, sources and toxicity potential of hydrocarbons in harbor sediments: A regional assessment in SE Brazil.
作者信息
Pinheiro Pedro P O, Massone Carlos G, Carreira Renato S
机构信息
Grupo de Oceanografia Química e Geoquímica, Departamento de Pesquisas, Instituto de Estudos do Mar Almirante Paulo Moreira, Marinha do Brasil, Arraial do Cabo, RJ 28930-000, Brazil.
LabMAM, Departamento de Química, Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rio de Janeiro, RJ 22451-900, Brazil.
出版信息
Mar Pollut Bull. 2017 Jul 15;120(1-2):6-17. doi: 10.1016/j.marpolbul.2017.04.049. Epub 2017 May 3.
Aliphatic and polycyclic aromatic hydrocarbons (PAHs) were quantified in harbors sediments from SE Brazil. The aims were to (i) compare harbors with distinct sizes and under the influence of different environmental pressures with respect to the sources and level of hydrocarbon contamination and (ii) evaluate the potential of adverse biological effects of sediment contamination by PAHs, based on sediment quality guidelines and toxicity equivalence quotient. The concentrations of total aliphatics (39.9μgg; 22.9-113μgg) and total PAHs (727ngg; 366-1760ngg) varied according to the size of and urban development around each harbor. Mixed contamination by petrogenic and pyrolytic hydrocarbons, and input of biogenic compounds, indicated the influence of both harbor activities and a myriad of urban, industrial and atmospheric inputs. The quality of sediment poses a risk to benthic biological communities, and, if dredged, this material may cause environmental damage in the waste disposal area.
对巴西东南部港口沉积物中的脂肪族和多环芳烃（PAHs）进行了定量分析。目的是：（i）比较不同规模且受不同环境压力影响的港口在烃类污染物来源和水平方面的差异；（ii）基于沉积物质量指南和毒性当量商，评估PAHs污染沉积物产生不利生物效应的可能性。总脂肪族（39.9μg/g；22.9 - 113μg/g）和总PAHs（727ng/g；366 - 1760ng/g）的浓度因每个港口的规模和周边城市发展情况而异。成岩烃类和热解烃类的混合污染以及生物源化合物的输入，表明了港口活动以及众多城市、工业和大气输入的影响。沉积物质量对底栖生物群落构成风险，若进行疏浚，这些物质可能会对废物处置区域造成环境破坏。
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