Grupo de Pesquisa em Contaminantes Ambientais, GPCA, Instituto Federal Sul-Rio-Grandense-Campus Pelotas, RS, Brazil.
Mar Pollut Bull. 2012 Sep;64(9):1933-7. doi: 10.1016/j.marpolbul.2012.04.010. Epub 2012 Jul 2.
This paper evaluates the concentration of Polyaromatic hydrocarbons - PAHs in the Estuarine area of the Patos Lagoon, more precisely in a local named "Saco do Laranjal" in Pelotas City (southern Brazil). The samples were collected in May 2008. The concentrations of 16 US-EPA priority polycyclic aromatic hydrocarbons (PAHs) were determined by gas chromatography with a mass spectrometry detector (GC/MS). The sum of PAHs concentration ranged from 7.3 to 92.8 μg kg(-1) in dry weight. The positive correlation (Pearson test) between the total organic material (TOM) and the total PAH concentration (0.98) suggests that TOM plays an important role in controlling the PAHs levels in the sediments. According to the observed ratios of individual PAHs, the contamination in the studied area is originated, predominantly pyrolytic sources. The values found are considered under normal levels and indicates a not impacted area.
本论文评估了帕托斯泻湖河口地区（确切地说是位于巴西南里奥格兰德州佩洛塔斯市的“拉拉兰加尔潟湖”）多环芳烃（PAHs）的浓度。样品采集于 2008 年 5 月。采用气相色谱-质谱联用仪（GC/MS）测定了 16 种美国环保署优先控制的多环芳烃（PAHs）的浓度。干重中 PAHs 浓度总和在 7.3 至 92.8 μg kg(-1)之间。总有机物质（TOM）与总多环芳烃浓度之间的正相关（皮尔逊检验）（0.98）表明 TOM 在控制沉积物中 PAHs 水平方面起着重要作用。根据观察到的单个 PAHs 的比值，研究区域的污染主要源自热解源。所发现的数值被认为处于正常水平，表明该地区未受到影响。
