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Assessment of the Toxic Metals Pollution of Soil and Sediment in Zarafshon Valley, Northwest Tajikistan (Part II)

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Institute of Water Problem, Hydropower and Ecology of Academy of Science, 14a Ainy Str., Dushanbe 734042, Tajikistan
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Frank Laboratory for Neutron Physics, Joint Institute for Nuclear Research, 6, Joilot Curie Str., 141980 Dubna, Russia
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Department of Structure of Matter, Earth and Atmospheric Physics and Astrophysics, Faculty of Physics, University of Bucharest, 405, Atomistilor Str., 077125 Magurele, Ilfov, Romania
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Horia Hulubei R&D Institute for Physics and Nuclear Engineering, 30, Reactorului Str., 077125 Magurele, Ilfov, Romania
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Author to whom correspondence should be addressed.
Toxics 2020, 8(4), 113; https://doi.org/10.3390/toxics8040113
Received: 16 October 2020 / Revised: 12 November 2020 / Accepted: 19 November 2020 / Published: 23 November 2020
(This article belongs to the Section Risk Assessment and Management)
This study discusses contamination of soils and sediments with trace elements such as Mn, Ba, W, V, Co, Cr, Zn, Ni, As, Sb Hg as well as Th and U, the influence of natural and anthropogenic factors on the distribution of elements and the ecological state of the Zarafshon Valley. The elemental composition of 116 soil and sediment samples were analyzed by the neutron activation analysis. The calculation of the geoaccumulation index (Igeo), contamination factor (CF) and pollution load index (PLI) showed that some places in the investigated region with developed the industrial zones (around mining and processing plants of “Anzob”, “Konchoch”, “Kumargi bolo” and “Mogiyon”) are mostly polluted by As, Sb, Hg, and in rare cases, the high concentration of W and V were determined. In addition, they were considered the distribution of radioactive elements–thorium and uranium and their ratio in the soil and sediments. Moreover, in the investigated area, strong anomalies of Th and U were not found. It turned out that the content of Th and U are local in nature and do not have a noticeable effect on the environment. View Full-Text
Keywords: Zarafshon Valley; exposed and unexposed soil and sediment; instrumental neutron activation analysis; pegmatite and granitoid; Djidjikrut; Yagnob; Fondarya; Tajikistan Zarafshon Valley; exposed and unexposed soil and sediment; instrumental neutron activation analysis; pegmatite and granitoid; Djidjikrut; Yagnob; Fondarya; Tajikistan
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MDPI and ACS Style

Abdusamadzoda, D.; Abdushukurov, D.A.; Duliu, O.G.; Zinicovscaia, I. Assessment of the Toxic Metals Pollution of Soil and Sediment in Zarafshon Valley, Northwest Tajikistan (Part II). Toxics 2020, 8, 113. https://doi.org/10.3390/toxics8040113

AMA Style

Abdusamadzoda D, Abdushukurov DA, Duliu OG, Zinicovscaia I. Assessment of the Toxic Metals Pollution of Soil and Sediment in Zarafshon Valley, Northwest Tajikistan (Part II). Toxics. 2020; 8(4):113. https://doi.org/10.3390/toxics8040113

Chicago/Turabian Style

Abdusamadzoda, Daler, Djamshed A. Abdushukurov, Octavian G. Duliu, and Inga Zinicovscaia. 2020. "Assessment of the Toxic Metals Pollution of Soil and Sediment in Zarafshon Valley, Northwest Tajikistan (Part II)" Toxics 8, no. 4: 113. https://doi.org/10.3390/toxics8040113

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