scholarly journals INTENSITY OF SOIL CONTAMINATION IN INDUSTRIAL CENTERS OF KAZAKHSTAN

2013 ◽  
Vol 1 ◽  
pp. 374-380 ◽  
Author(s):  
Amanzhol Iztileu ◽  
Olga Grebeneva ◽  
Maral Otarbayeva ◽  
Nina Zhanbasinova ◽  
Ekaterina Ivashina ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Soil Contamination ◽  
Urban Areas ◽  
Pollution Index ◽  
Environmental Safety ◽  
Health Issues ◽  
Gis Technology ◽  
Manganese Zinc ◽  
Software Product ◽  
Mutagenic Effects

For Kazakhstan, with its vast territory, the problem of disposal of solid waste from metallurgical, energy and petrochemical industries is becoming more acute. Failure to comply with hygiene requirements for the placement and operation of landfills increases the area of contaminated land and could become a threat to the public of environmental safety of industrial centers. The aim of the study was to evaluate the soil contamination in the towns and cities of Kazakhstan and the allocation of areas of risk to public health. The content of heavy metals in the soil (manganese, zinc, copper, cobalt, nickel, lead, cadmium, mercury, selenium, tin, arsenic, vanadium) were determined by atomic absorption spectrometer MGA-915M. Evaluation of the results was performed with respect to the MPC substances in the soil, the toxicity of the components. Summarized metal soil pollution index (IZ) was obtained by the sum of the rate of excess metal concentration above the level of its world-Clark. To assess the different risk residence zones scale with 5 levels of purity up to 2 - very clean, 2.8 net, 8-16 acceptable, 16-32 moderately dangerous, dangerous 32-128 was chosen. We developed the original software product using GIS technology to provide environmental information on an electronic map of the city in the form of color patches (polygons), matching levels summarized indicator of soil contamination. Found that the most contaminated soil were village Glubokoe where pollution reached dangerous or extremely dangerous levels, Aktau and Zhanaozen in which moderately hazardous contamination was detected throughout; Ust-Kamenogorsk and village Sholakkorgan where moderately hazardous contamination was noted in the fourth part of the urban area. The most common heavy metal toxicity 1-2 class that exceeded MCL in soils, were lead, copper and zinc, and in village Glubokoe - chromium and arsenic, in Aktau - cadmium. Visualization of environmental pollution in some urban areas puts into the hands of environmentalists a new tool in the analysis of environmental health issues to reduce the carcinogenic and mutagenic effects of soil contamination with heavy metals. The mapping results of soil contamination will contribute earmarking local authorities to carry out administrative measures to optimize the environment in the industrial centers.

scholarly journals Review of Heavy Metals Pollution in China in Agricultural and Urban Soils

2018 ◽  
Vol 8 (18) ◽  
Author(s):  
Eshetu Shifaw
Keyword(s):  
Heavy Metals ◽  
Soil Contamination ◽  
Health Risks ◽  
Urban Soils ◽  
Land Use Changes ◽  
National Level ◽  
Pollution Index ◽  
Background Level ◽  
Pollution Level ◽  
Soil Toxicity

Background. The concentrations of heavy metals in soil and potential risks to the environment and public health are receiving increased attention in China. Objectives. The objective of this paper is to review and analyze heavy metals soil contamination in urban and agricultural areas and on a national scale in China. Methods. Initially, data on soil heavy metals concentration levels were gathered from previous studies and narratively analyzed. A further statistical analysis was performed using the geo-accumulation index (Igeo), Nemerow integrated pollution index (NIPI), mean, standard deviation (SD), skewness and kurtosis. Pollution levels were calculated and tabulated to illustrate overall spatial variations. In addition, pollution sources, remedial measures and impact of soil contamination as well as limitations are addressed. Results. The concentration level of heavy metals was above the natural background level in most areas of China. The problem was more prevalent in urban soils than agricultural soils. At the national level, the soil in most of the southern provinces and Beijing were heavily polluted. Even though the pollution condition based on Igeo was promising, the Nemerow integrated pollution level was the most worrisome. The soils in about 53% of the provinces were moderately to heavily polluted (NIPI>2). The effects were noticed in terms of both public and ecological health risks. The major sources were waste gas, wastewater, and hazardous residuals from factories and agricultural inputs such as pesticides. Efforts have been made to reduce the concentrations and health risks of heavy metals, including policy interventions, controlling contamination sources, reducing the phytoavailability of heavy metals, selecting and rearing of grain cultivars with low risk of contamination, paddy water and fertilizer management, land use changes, phytoremediation and engineering techniques. Conclusions. China is experiencing rapid economic and technological advancements. This increases the risk of heavy metals contamination of soil. If serious attention is not paid to this problem, soil toxicity and biological accumulation will continue to threaten the sustainability of China's development. Competing Interests. The authors declare no competing financial interests

scholarly journals Pollution (Poly Aromatic Hydrocarbons and Heavy Metals) Evaluation in Soil of Selected Area of Kaduna Towns in Kaduna State

2019 ◽  
Vol 2 (1) ◽  
Keyword(s):  
Heavy Metals ◽  
Aromatic Hydrocarbons ◽  
Urban Areas ◽  
Pollution Index ◽  
Dry Season ◽  
Wet Season ◽  
Petroleum Resources ◽  
Polycyclic Aromatic ◽  
Pahs Concentration ◽  
Study Sites

The Polycyclic aromatic hydrocarbons (PAHs) and some heavy metals were analysis in the soil samples from urban areas of Kaduna state for their concentration and distribution. Naphthalene, acenaphthylene, acenaphthene, fluorine, phenanthrene, anthracene, fluoranthene, pyrene, chrysene, benzo(a)anthracene, benzo(b)fluoranthene, benzo(k)fluoranthene, benzo(a) pyrene, indeno(1,2,3-cd)perylene, benzo(ghi) perylene and dibenzo(a,h) anthracene were analyzed in three urban soils of Kaduna North, Alegbi and Kaduna South, at 0-15 cm and 16-30 cm depth in wet and dry seasons. After extraction using ultrasonication with hexane and dichloromethane and clean-up, PAHs concentration was measured using gas chromatography. The concentration of all the PAHs obtained ranged between 178.00 mg/g and 787.0 0 mg/g for wet season and 105.10 mg/g and 437.70 mg/g for dry season. The concentrations of PAHs were higher in the subsoil (15-30 cm depth) in the wet season than in the dry season while higher concentrations of all the PAHs were observed in topsoil than subsoil during the dry season. The concentration of PAHs followed the order Kaduna North > Kaduna South > Algabi during the wet season and Kaduna South > Algabi > Kaduna Nort during the dry season. The concentration values of all determined PAHs were below the target value of 1000 mg/g stipulated by Department of Petroleum Resources. The Cd, Cr, Cu and Pb levels in the soil from the study sites were higher than the corresponding control values. The degree of pollution of various metals using the graded standard of Nemero pollution index varied. The concentrations of the metals were found to be above the recommended limits given by USEPA/WHO. This could pose risks and hazards to human and the ecosystem through direct ingestion of contaminated soil

scholarly journals Assessment of ecological comfort of soils of urban ecosystems under the influence of heavy metals on them

2019 ◽  
Vol 27 (3) ◽  
pp. 209-218
Author(s):  
Nikolay P. Nevedrov
Keyword(s):  
Heavy Metals ◽  
Environmental Sustainability ◽  
Urban Areas ◽  
Urban Ecosystems ◽  
Environmental Safety ◽  
Urban Ecosystem ◽  
Economic Activities ◽  
Functional Zones ◽  
Human Habitation ◽  
Key Sites

Assessment of the ecological state of environmental components in urban areas plays an important role in achieving environmental safety and environmental comfort for human habitation and economic activities. A comprehensive index of ecological comfort of soils polluted by heavy metals is presented and tested. The index is calculated by the ratio of the total impact of heavy metals (HM) on soils, plants, and soil biota to the sum of indicators of environmental sustainability of soils to this effect and the ability of soils to prevent HM pollution in nearby territories. The scale for ecological regulation and ecological comfort of urban ecosystem soils is proposed. It was noted that 42.8% of the soils of the studied key sites located in the sanitary-protective and recreational zones are environmentally comfortable, while 57.2% of the soils of the industrial, residential and sanitary-protective functional zones of the city are not considered to be ecologically comfortable.

scholarly journals THE ENVIRONMENTAL DANGER OF POLLUTION OF SOILS OF URBAN TERRITORIES OF THE MINING REGION

2019 ◽  
Vol 98 (12) ◽  
pp. 1370-1375 ◽  
Author(s):  
Reseda F. Khasanova ◽  
Ya. T. Suyundukov ◽  
I. N. Semenova ◽  
Yu. S. Rafikova ◽  
Yu. Yu. Seregina
Keyword(s):  
Heavy Metals ◽  
Soil Contamination ◽  
Soil Pollution ◽  
Urban Areas ◽  
Geochemical Background ◽  
Sources Of Pollution ◽  
Republic Of Bashkortostan ◽  
Mobile Forms ◽  
The Republic ◽  
Industrial Zones

Introduction. The article presents the results of the study of the quality of soil cover in the cities located in the mountainous areas of the Trans-Urals in the Republic of Bashkortostan. The object of the study was the soil of lands for various purposes in cities of Uchaly, Sibay, and Baymak. In the study of soils of industrial zones, there were taken samples adjacent to the dumps and tailing dumps of mining production at a distance of up to 500 m. In the recreational zone there were included the territories of parks, in the residential zone - all micro-districts where the population of the city resides. There were investigated territories of collective gardens located near sources of pollution. Material and methods. The gross content of heavy metals and their mobile forms extracted from the soil of ammonium acetate buffer at pH 4.8 were determined by atomic absorption. Generally accepted ecological values of maximum permissible concentrations (MPC) and regional geochemical background (RGF) were used to estimate the degree of soil pollution. To assess the degree of soil pollution, the total ZC index was calculated using the formula proposed by Yu. E. Saet. Results. As a result of the study, in all studied samples of the soil excess of MPC on gross forms on the content of Cu, Zn, in some cases, Mn, Cd, Co was revealed. Calculations of the General norm of Zc showed urban soil lands of all types of purpose by gross content to belong to the category of permissible pollution. The level of soil contamination with heavy metals in all the studied cities is higher in soils for industrial purposes. Increased level of mobile forms of Cu, Zn, Mn, Cd was revealed in all studied soil samples. The soils of the residential zone of Baymak according to the content of mobile forms belong to the moderately dangerous category of pollution, the rest of the studied soils had an acceptable category of pollution. In the cities of Sibay and Uchaly, the territories adjacent to the quarry dumps belong to a particularly dangerous category of pollution. Conclusion. The level of soil contamination with heavy metals in urban areas of the Mountainous region of the Republic of Bashkortostan is determined by the type of destination of urban land. The most polluted are the soils of industrial zones located in close proximity to mining enterprises. The ecological danger of pollution is that in this zone there is a part of residential neighborhoods with knots, as well as garden cooperatives, where potatoes, vegetables and fruit and berry crops are grown.

scholarly journals Assessment of the State of Soil’s Microbial Community in Condition of Intensive Influence of Pollutants

2021 ◽  
Vol 40 (1) ◽  
pp. 8-15
Author(s):  
Lydia Pavlovna Stepanova ◽  
Aza Valerievna Pisareva ◽  
Vyacheslav Andreevich Raskatov
Keyword(s):  
Heavy Metals ◽  
Soil Contamination ◽  
Soil Microorganisms ◽  
Pollution Index ◽  
The State ◽  
Disposal Site ◽  
Urban Territories ◽  
High Level ◽  
Microbiological Properties ◽  
Gray Soil

Abstract This paper presents the study of toxicological state of the soil. It shows ecological and microbiological properties of the soil mantle in the areas of technological environmental impact and evaluates changes in the number of soil microorganisms as a result of toxic contamination of urban soil at different distances from the Moscow loop highway, and also as a result of dumping aluminum foundry slag in Orel region. Soil-inhabiting invertebrates species composition was evaluated at different soil contamination conditions. It was proven that the state of microbiocenosis changes depending on the intensity and character of the anthropogenic impact. It was established that soil fermentation and microbiological activity changes depending on the value of the cumulative heavy metals’ build-up coefficient. Study of interelement ties between the heavy metals concerned showed that they too may have the same anthropogenic origin regardless of their sources of origin. Pollution index indicates medium to high level of soil contamination in explored urban territories where vehicle emission is the main source of pollution, and dangerously high contamination of light-gray soil in the small settlement impacted by a nearby slag disposal site.

Features of the Distribution of Heavy Metals in the Soil of the Railway Yard

2018 ◽  
Vol 22 (9) ◽  
pp. 23-27
Author(s):  
M.A. Zhuravleva ◽  
N.I. Zubrev ◽  
M.I. Panfilovа ◽  
O.V. Novoselova ◽  
S.Yu. Efremova
Keyword(s):  
Heavy Metals ◽  
Soil Contamination ◽  
Urban Areas ◽  
Central Line ◽  
Sorting Station ◽  
Heavy Metals In Soils

The distribution of heavy metals in soils in the sorting station of Lublino-Sortirovochnoye Kursk direction of the Moscow railway in the southeastern district of Moscow with the help of sampling profiles is considered. Analysis of the distribution of metals in the northern, southern parks, the central line of the station and along the main course is given. The characteristic groups of metals that determine the nature and level of contamination of the station, as well as a number of predominant heavy metals are presented. Their distribution at three stations stopping at a distance from the main course is considered. The categories of soil contamination and the contribution of each metal are determined taking into account the halos of the dispersion of enterprises. A comparison of the soil of the sorting station with the level of contamination of the strip for the removal of segments of the railway lines of the Kursk and Kazan directions is given. Recommendations are given for reducing the content and distribution of heavy metals in urban areas.

Distribution and Contamination Status of Heavy Metals in the Surface Sediments along Western Coast of Bali Strait, Banyuwangi

2018 ◽  
Vol 1 (2) ◽  
Author(s):  
Defri Yona ◽  
Syarifah Hikmah Julinda Sari ◽  
Anedathama Kretarta ◽  
Citra Ravena Putri Effendy ◽  
Misba Nur Aini ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Pollution ◽  
Contamination Factor ◽  
Pollution Index ◽  
Western Coast ◽  
Sampling Locations ◽  
Accumulation Index ◽  
Geo Accumulation Index ◽  
Geo Accumulation

This study attempted to analyze the distribution and contamination status of heavy metals (Cu, Fe and Zn) along western coast of Bali Strait in Banyuwangi, East Java. Bali Strait is one of the many straits in Indonesia with high fisheries activities that could potentially contributed to high heavy metal pollution. There were five sampling areas from the north to south: Pantai Watu Dodol, Pantai Kalipuro, Ketapang Port, Pantai Boom and Muncar as the fish landing area. Heavy metal pollution in these locations comes from many different activities such as tourism, fish capture and fish industry and also domestic activities. Contamination factor (CF), geo-accumulation index (Igeo) and enrichment factor (EF) of each heavy metal were calculated to obtain contamination status of the research area. The concentrations of Fe were observed the highest (1.5-129.9 mg/kg) followed by Zn (13.2-23.5 mg/kg) and Cu (2.2-7.8 mg/kg). The distribution of Cu, Fe and Zn showed variability among the sampling locations in which high concentrations of Cu and Zn were higher in Ketapang Port, whereas high concentration of Fe was high in almost all sampling locations. According to the pollution index, contamination factors of Cu, Fe and Zn were low (CF < 1 and Igeo < 1). However, high index of EF (> 50) showed high influence of the anthropogenic activities to the contribution of the metals to the environment. This could also because of the high background value used in the calculation of the index due to the difficulties in finding background value from the sampling areas.Keywords: heavy metals, pollution index, contamination factor, geo-accumulation index, Bali Strait

Heavy metals accumulation in freshwater mussels (Lamellidens marginalis) as a biological monitor inhabiting in Dhanmondi Lake, Dhaka, Bangladesh.

2016 ◽  
Vol 5 (10) ◽  
pp. 4933
Author(s):  
Sabia Sultana ◽  
A. K. M. Nur Alam Siddiki ◽  
Md. Rokonujjaman ◽  
M. Niamul Naser ◽  
Abdus Salam ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Soft Tissues ◽  
Freshwater Mussels ◽  
Heavy Metal Concentration ◽  
Heavy Metal Concentrations ◽  
Heavy Metals Accumulation ◽  
Manganese Zinc ◽  
Metals Accumulation ◽  
Test Level

The heavy metal concentration (e.g., Mn, Zn, Pb and Ni) were determined in soft tissues and shells of freshwater mussels (Lamellidens marginalis) at the various sites of Dhanmondi lake, Dhaka, Bangladesh between the period April, 2010 and March 2011. The heavy metal concentrations in shells and soft tissues of freshwater mussels were tended to vary significantly among sampling points and seasons in Dhanmondi Lake. Distribution of heavy metals in shell and soft tissue of Lamellidens marginalis followed the order Mn>Zn>Pb>Ni, respectively. According to the t-test, level of manganese, zinc and lead under investigation between shell and tissue showed statistically significant differences [Mn: t=-11.387; df=16; P=0.000; Zn: t=-2.590; df=16; P=0.020 and Pb: t=-2.8679; df=16; P=0.011].

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