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首页> 外文期刊>Environmental Monitoring and Assessment >Assessment of heavy metal contamination in natural waters of Dereli, Giresun: an area containing mineral deposits in northeastern Turkey
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Assessment of heavy metal contamination in natural waters of Dereli, Giresun: an area containing mineral deposits in northeastern Turkey

机译：吉雷松德雷利自然水域中重金属污染评估：土耳其东北部含矿藏的地区

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摘要

The concentration of heavy metals in the natural waters of the area surrounding Dereli (Giresun), a mineralized area, was determined. In addition, the physicochemical parameters (such as pH, Eh, and HCO3-) influencing the concentration of dissolved metals in waters were evaluated. Samples were collected from stream, spring, and main river waters, some of which are used by local residents for drinking, fish farming, and animal husbandry. The present data indicate that the water-rock interaction is the main process controlling the chemical composition of waters in the area. The waters are predominantly CaMgHCO3-type waters with alkaline pH values. Heavy metal concentrations (Pb, Zn, Cu, Fe, Mn, U, Cd, As, Hg, Sb, Ni, Co, and Ba) in waters were generally low. Relatively high values of certain metals were determined in waters of the Kotana and Kurtulmus sites of Dereli. The levels of Pb in the river, stream, and spring water samples in these sites were somewhat higher than the Pb values reported in the literature for natural waters. However, these values only slightly exceeded the Pb water limit values proposed by the USEPA and the WHO. In addition, the concentrations of other heavy metals, except Pb, were fairly similar to those of other natural waters and these values were also under the drinking water limits set by the WHO and the USEPA. This study shows that waters in the area of Dereli were not significantly affected by mineralization. This is most likely caused by the bicarbonate-rich waters affecting the dissolved metal concentrations.
机译：测定了矿化区Dereli（Giresun）周围地区自然水域中的重金属浓度。此外，还评估了影响水中溶解金属浓度的物理化学参数（例如pH，Eh和HCO3-）。从溪流，泉水和主要河水中采集了样本，其中一些被当地居民用于饮水，养鱼和畜牧业。目前的数据表明水-岩相互作用是控制该地区水的化学组成的主要过程。这些水主要是具有碱性pH值的CaMgHCO3型水。水中的重金属浓度（铅，锌，铜，铁，锰，铀，镉，砷，汞，锑，镍，钴和钡）通常较低。在Dereli的Kotana和Kurtulmus厂址的水中确定了某些金属的相对较高的值。这些地点的河流，溪流和泉水样品中的铅含量略高于文献中有关天然水的铅含量。但是，这些值仅略高于USEPA和WHO提出的Pb水限值。此外，除Pb外，其他重金属的浓度与其他天然水的浓度非常相似，并且这些值也低于WHO和USEPA设定的饮用水限值。这项研究表明，Dereli地区的水不受矿化的影响很大。这很可能是由富含碳酸氢盐的水影响溶解的金属浓度引起的。

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