scholarly journals DEVELOPMENT OF ATMOSPHERIC DEPOSITION OF HEAVY METALS IN THE VICINITY OF IRON ORE WORKS IN NIZNA SLANA (SLOVAKIA)

2011 ◽  
Author(s):  
Jozef Hanculak
Keyword(s):  
Heavy Metals ◽  
Atmospheric Deposition ◽  
Iron Ore

Heavy metals pollution potentials in the National Iron Ore Mining Company, Itakpe

2020 ◽  
Vol 3 (2) ◽  
Author(s):  
Cyril Ocheri ◽  
A. D. Omah ◽  
C. N. Mbah ◽  
R. E. Njoku ◽  
N. A. Urama ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Sea Level ◽  
Toxic Elements ◽  
Iron Ore ◽  
Pollution Potential ◽  
Extraction Techniques ◽  
Mining Company ◽  
Mining Sites ◽  
Metals Pollution ◽  
Heavy Metals Pollution

Heavy metals pollution potential in National Iron Ore Mining Company, Itakpe was investigated. Two mining sites located at the east mining pits such as M3O, which is 370 m above sea level and M2O, which is 350 m above sea level were studied.  Sequential extraction techniques was utilised to examine the distribution effect of the heavy metals pollution potential on the environment. Twelve representative (six-soil, two-sediment, two-plant and two-water) samples were collected, pre-treated and prepared for this study. The atomic absorption spectrometer was used to analyse the concentration of the metals after the sequential and single-stage extractions were determined. Results showed that Chromium, Arsenic, Cadmium and Copper are more bioavailable in the study area than Lead and Iron. This findings indicate that human, animals and plants are exposed to toxic elements (metals and metalloids).

scholarly journals Atmospheric Deposition Of Heavy Metals In Toronto

2021 ◽  
Author(s):  
Muhammad Yousaf
Keyword(s):  
Heavy Metals ◽  
Atmospheric Deposition ◽  
Inductively Coupled Plasma ◽  
Atomic Emission ◽  
Emission Spectrometry ◽  
Mercury Species ◽  
Plasma Atomic Emission Spectrometry ◽  
Deposition Rates ◽  
Inductively Coupled ◽  
Glass Surfaces

Atmospheric deposition rates of heavy metals (As, Cd, Co, Cu, Hg, Mn, Ni, Pb, and Zn) were determined from July 2009−December 2010 in downtown Toronto. Atmospheric deposition samples were collected using samplers with plastic, glass and water surfaces from two rooftops (15 m and 59 m above ground) in the city core of Toronto. Mercury species were analyzed using Cold Vapor Atomic Fluorescence Spectrophotometer (CVAFS) and the rest of metals were analyzed by acid digestion combined with Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES). The results showed that the deposition of heavy metals was higher on water surface as compared to both the plastic and glass surfaces and that Cu, Mn, Pb and Zn showed higher deposition rates as compared to As, Cd, Co and Ni. The deposition rates were higher on Kerr Hall North (KHN) site indicating contribution from local sources. For total mercury (THg) and methyl mercury (MeHg), the deposition rates were higher on Jorgenson (JOR) site as compared to KHN site.

scholarly journals Research of the Content of Heavy Metals in the Atmospheric Precipitation of the Geygel, Dashkesan and Gedabek Districts of Azerbaijan

2021 ◽  
Vol 7 (6) ◽  
Author(s):  
Sh. Nuguyeva ◽  
E. Mammadov
Keyword(s):  
Heavy Metals ◽  
Neutron Activation ◽  
Atmospheric Deposition ◽  
Atomic Absorption ◽  
Absorption Spectroscopy ◽  
Atomic Absorption Spectroscopy ◽  
Epithermal Neutron ◽  
Atmospheric Precipitation ◽  
Nuclear Research ◽  
Atmospheric Air

The increasing content of heavy metals in soil and atmospheric air can lead to serious consequences in the final link of which a person is. To determine heavy metals in atmospheric deposition, the method of biomonitoring of mosses was used. Joint Institute for Nuclear Research scientists started the implementation of the mosses biomonitoring methodology in Azerbaijan 2015. In total, the concentration was determined for 44 elements. Determinations were performed using instrumental analysis of Epithermal Neutron Activation and Atomic Absorption Spectroscopy in 85 moss samples. The species of moss used in the work was Pleurosium schreberi. Based on the analysis results, the most contaminated areas are identified.

scholarly journals TOXICOLOGICAL AND MICROBIOLOGICAL ESTIMATION LEVEL OF POLLUTION ECOSYSTEMS IN THE INDUSTRIAL REGION OF UKRAINE – KRIVOY ROG CITY

2020 ◽  
Vol 73 (9) ◽  
pp. 1962-1967
Author(s):  
Luibov V. Hryhorenko ◽  
Svitlana Yu. Yehorova
Keyword(s):  
Heavy Metals ◽  
Water Samples ◽  
Iron Ore ◽  
Wild Plants ◽  
Aquatic Biota ◽  
Toxic Heavy Metals ◽  
Drinking Purposes ◽  
Ore Processing ◽  
Permissible Levels ◽  
Scientific Substantiation

The aim: Scientific substantiation necessary of PMWW application for the ecologically safe formation of the secondary ecosystems in the mining and iron ore processing areas. Materials and methods: Sanitary-chemical investigation of water samples (n=132); biological objects – plants and aquatic biota was conducted on the content of Pb, Cd, Zn, Mn, Cu, Cr, Ni, Fe (n=112); wild plants samples (n=135); sanitary-microbiological and parasitological indicators 1 – 3 years old waste water sludge (WWS) (n = 68). Results: Overnormal concentrations of salt had been found in water samples, taken from the river Inhulets (2.1 MPL), sulfates and carbonates (2.7 MPL), iron (2.1 MPL), chloride (1.7 MPL), magnesium (3.1 MPL). In wells from nearest villages water is not suitable for drinking purposes and contains total sum of salts – 4.97 MPL, sulfates and carbonates – 5.16 MPL, cadmium – 3.7 MPL, lead – 1.53 MPL. Thus, the toxic heavy metals concentrations (Pb, Cd, Zn, Mn, Cu, Cr, Ni, Fe) in the fish and amphibians did not exceed the permissible levels. Conclusions: Total pollution of the soil within six months after application of sludge correspond to the “permissible” level (Zc=1.61). Use of clearing facilities sludge aged from 1.5 years old and of longer in the amount 15 kg/m2 did not lead to increased concentration of heavy metals in the top layer of dumps.

Study of the bioavailability of heavy metals from atmospheric deposition on the soil-pakchoi (Brassica chinensis L.) system

2019 ◽  
Vol 362 ◽  
pp. 9-16 ◽  
Author(s):  
Hai-Long Liu ◽  
Jun Zhou ◽  
Min Li ◽  
Yuan-mei Hu ◽  
Xiaoli Liu ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Atmospheric Deposition ◽  
Brassica Chinensis ◽  
L System

Heavy metals in iron ore tailings and floodplain soils affected by the Samarco dam collapse in Brazil

2020 ◽  
Vol 709 ◽  
pp. 136151 ◽  
Author(s):  
Rafael Biscotto Davila ◽  
Mauricio Paulo Ferreira Fontes ◽  
Anderson Almeida Pacheco ◽  
Matheus da Silva Ferreira
Keyword(s):  
Heavy Metals ◽  
Iron Ore ◽  
Iron Ore Tailings ◽  
Floodplain Soils

Concentration, fluxes, risks, and sources of heavy metals in atmospheric deposition in the Lihe River watershed, Taihu region, eastern China

2019 ◽  
Vol 255 ◽  
pp. 113301 ◽  
Author(s):  
Lian Chen ◽  
Shenglu Zhou ◽  
Shaohua Wu ◽  
Chunhui Wang ◽  
Di He
Keyword(s):  
Heavy Metals ◽  
Atmospheric Deposition ◽  
Eastern China ◽  
River Watershed

scholarly journals Macronutrients and heavy metals contents in the leaves of trees from the devastated lands at Kryvyi Rih District (Central Ukraine)

2020 ◽  
Vol 166 ◽  
pp. 01011
Author(s):  
Yuliia Bielyk ◽  
Vasyl Savosko ◽  
Yuriy Lykholat ◽  
Hermann Heilmeier ◽  
Ivan Grygoryuk
Keyword(s):  
Heavy Metals ◽  
Forest Restoration ◽  
Iron Ore ◽  
Black Locust ◽  
Waste Rock ◽  
Silver Birch ◽  
Geochemical Conditions ◽  
Waste Rock Dump

This research was performed at Petrovsky waste rock dump, the Central part of the Kryvyi Rih iron-ore & metallurgical district (Dnipropetrovsk region, Ukraine). The macronutrients (K, Ca, Mg, P and S) and heavy metals (Fe, Mn, Zn, Cu, Pb and Cd) contents in the leaves of three species of the trees (Ash-leaved maple, Silver Birch and Black locust) that were collected on devastated lands were assessed. It was established that trees which grow on the Petrovsky dump take place under evident shortage of nutrients (especially K and P) and excess of metals (especially Fe, Mn and Zn). It is revealed that Ash-leaved maple and Black locust are more resistant to the geochemical conditions of devastated lands. In this regard, these species of trees can be recommended for forest restoration & reforestation on devastated lands.

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