厄瓜多尔埃尔奥罗沿海地区沉积物中的汞水平

IF 0.2 4区生物学 Q4 ZOOLOGY

GAYANA Pub Date : 2016-12-01 DOI:10.4067/S0717-65382016000200147

A. Marín, V. González, B. Lapo, E. Molina, M. Lemus

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引用次数: 4

摘要

对厄瓜多尔埃尔奥罗省沿海地区三个地点的表层沉积物中汞的总含量进行了评估。在每个地区建立了9个采样区，分析了总固形物(ST)、湿度(H)、有机质(MO)和汞(Hg)。采用原子吸收分光光度法，在石英池中原子化产生氢化物，测定汞的浓度。各地区Hg浓度差异显著，华拉河口最高(6、57 ~ 7、61 mg kg-1)，巴霍阿尔托最低(3、46 ~ 4、83 mg kg-1)。沉积物中的汞含量表明，在埃尔奥罗省沿海剖面的三个地点明显存在人为因素，这对生物群和人类健康构成了威胁。

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Niveles de mercurio en sedimentos de la zona costera de El Oro, Ecuador

The total content of Hg was evaluated in surface sediments at three localities in the coastal area of the province of El Oro, Ecuador. In each locality nine area of sampling were established, in which the total solids (ST), humidity (H), organic matter (MO) and Hg was analyzed. The Hg concentration was determined by atomic absorption spectrophotometry, by hydride generation with atomization in a quartz cell. The concentrations of Hg showed signifi cant differences between localities, with the largest concentration in the Huayla estuary (range: 6,57-7,61 mg kg-1) and the lowest in Bajo Alto (range: 3,46-4,83 mg kg-1). The levels of Hg in sediments suggest a clear anthropic incorporation in the three localities of the coastal profi le of the province of El Oro, which represent a risk to the biota and human health.

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来源期刊

GAYANA Agricultural and Biological Sciences-Aquatic Science

CiteScore

0.60

自引率

0.00%

发文量

期刊介绍： GAYANA is a scientific journal published by Universidad de Concepción, Chile. It is the modern version of Gayana Oceanología and Gayana Zoología. Therefore its numeration starts at volume 63(1). GAYANA covers all aspects of zoology and oceanographic research. It is structured in five sections, defined by subject or discipline: Ecology, Biodiversity and Taxonomy, Earth Sciences, Evolutionary, and Applied Biology and Environmental Biology. Each section is in charge of an editor who receives and manages the manuscripts sent for evaluation in close collaboration with the editorial board.