Rasulov Oqil, Zacharová Andrea, Schwarz Marián
Faculty of Ecology and Environmental Sciences, Department of Environmental Engineering, Technical University in Zvolen, T. G. Masaryka 24, 960 53, Zvolen, Slovakia.
Environ Monit Assess. 2017 Aug;189(8):388. doi: 10.1007/s10661-017-6079-z. Epub 2017 Jul 11.
This study investigated total mercury contents in areas impacted by aluminium plants in Tajikistan and Slovakia and in one area flooded with red mud in Hungary. We present the first determination of total mercury contents in the near-top soil (0-10 and 10-20 cm) in Tajikistan and the first comparative investigation of Tajikistan-Slovakia-Hungary. The Tajik Aluminium Company (TALCO) is one of the leading producers of primary aluminium in Central Asia. In the past 30 years, the plant has been producing large volumes of industrial waste, resulting in negative impacts on soil, groundwater and air quality of the surrounding region. Mercury concentrations were significant in Slovakia and Hungary, 6 years after the flooding. In studied areas in Slovakia and Hungary, concentrations of total mercury exceeded the threshold limit value (TLV = 0.5 mg Hg kg). However, in Tajikistan, values were below the TLV (0.006-0.074 mg kg) and did not significantly vary between depths. Total Hg in Slovakia ranged from 0.057 to 0.668 mg kg and in Hungary from 0.029 to 1.275 mg kg. However, in the plots near to the red mud reservoir and the flooded area, Hg concentrations were higher in the upper layers than in the lower ones.
本研究调查了塔吉克斯坦和斯洛伐克受铝厂影响地区以及匈牙利一处被赤泥淹没地区的总汞含量。我们首次测定了塔吉克斯坦近表层土壤（0 - 10厘米和10 - 20厘米）中的总汞含量，并首次对塔吉克斯坦 - 斯洛伐克 - 匈牙利进行了对比研究。塔吉克铝业公司（TALCO）是中亚主要的原铝生产商之一。在过去30年里，该工厂产生了大量工业废料，对周边地区的土壤、地下水和空气质量造成了负面影响。洪水发生6年后，斯洛伐克和匈牙利的汞浓度显著升高。在斯洛伐克和匈牙利的研究区域，总汞浓度超过了阈值（TLV = 0.5毫克汞/千克）。然而，在塔吉克斯坦，汞含量低于阈值（0.006 - 0.074毫克/千克），且不同深度之间没有显著差异。斯洛伐克的总汞含量范围为0.057至0.668毫克/千克，匈牙利为0.029至1.275毫克/千克。然而，在靠近赤泥库和洪水区域的地块中，上层的汞浓度高于下层。
