Tramonte Keila Modesto, Figueira Rubens Cesar Lopes, de Lima Ferreira Paulo Alves, Ribeiro Andreza Portella, Batista Miriam Fernanda, de Mahiques Michel Michaelovitch
Instituto Oceanográfico da Universidade de São Paulo (IO-USP), Pça. do Oceanográfico, 191, Butantã, SP 05508 120, Brazil.
Instituto Oceanográfico da Universidade de São Paulo (IO-USP), Pça. do Oceanográfico, 191, Butantã, SP 05508 120, Brazil.
Mar Pollut Bull. 2016 Feb 15;103(1-2):260-269. doi: 10.1016/j.marpolbul.2015.12.011. Epub 2015 Dec 18.
The Cananéia-Iguape system is located in a Southeastern Brazilian coastal region, acknowledged by UNESCO as Biosphere Reserve of the Atlantic Rainforest. This system underwent important environmental changes due to the opening of the artificial channel of Valo Grande and by past intensive Pb ore mining activities. In view of this scenario, this study evaluated Cu, Pb and Zn availability in sediments from Cananéia-Iguape system, based on the content associated with the main components of the sediments. Moreover, in order to assess local contamination, the metals' contents were compared to Canadian quality guidelines, the past levels of metals preceding the mining activities and background sediment values. Concerning Cu and Zn in a state of chemical remobilization, both elements would possibly present no harm to the local communities. However, Pb available content exceeded the comparison values in various sampling sites, suggesting the need of monitoring regarding its bioavailability.
卡纳内阿-伊瓜佩系统位于巴西东南部沿海地区，被联合国教科文组织认定为大西洋雨林生物保护区。由于瓦洛格兰德人工河道的开通以及过去密集的铅矿开采活动，该系统经历了重大的环境变化。鉴于这种情况，本研究基于沉积物主要成分相关的含量，评估了卡纳内阿-伊瓜佩系统沉积物中铜、铅和锌的有效性。此外，为了评估当地污染情况，将金属含量与加拿大质量指南、采矿活动之前的金属含量水平以及背景沉积物值进行了比较。关于处于化学活化状态的铜和锌，这两种元素可能对当地社区没有危害。然而，在各个采样点，铅的有效含量超过了比较值，这表明需要对其生物有效性进行监测。
