Pollution Changes of Heavy Metals in Urban Soils from 1994 to 2006 in Kaifeng, China

Few studies have been done on temporal changes of heavy metal pollution of urban soils. Eight soil samples at the same sites were collected inKaifengCity, China, in1994and 2006. Concentrations of Pb, Cd, As and Hg in the samples was measured. The pollution change of heavy metals from 1994 to 2006, and the relations between metal pollution and some human factors were discussed. The results show that soil pollution with metals in 2006 was higher than that in 1994 with economic growth. Soils in industrial district (ID) were more strongly polluted than in the following districts: (i) cultural and educational district (CED), (ii) mixed district of resident-commerce-administration (RCD), (iii) recreational district (RD), and (iv) suburban district (SD). Cd and Hg were the dominant pollutants. Economic growth, changes of land use and land-use authority can influence soil metal pollution significantly.

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Heavy Metal Pollution of Soil and Vegetable Grown Near Roadside at Gazipur

Bangladesh Journal of Agricultural Research ◽

10.3329/bjar.v37i1.11170 ◽

2012 ◽

Vol 37 (1) ◽

pp. 9-17 ◽

Cited By ~ 15

Author(s):

Habib Mohammad Naser ◽

Sarmin Sultana ◽

Rebeca Gomes ◽

Shamsun Noor

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Plant Species ◽

Metal Pollution ◽

Heavy Metal Pollution ◽

Soil Samples ◽

Roadside Soils ◽

Automotive Emissions ◽

The Road ◽

Major Highway

Levels of lead, cadmium, and nickel in roadside soils and vegetables along a major highway in Gazipur, Bangladesh were investigated. Soil samples were collected at distances of 0, 50, 100, and 1000 m (meter) from the road. The concentrations of lead (Pb) and nickel (Ni) in soil and vegetables (bottle gourd and pumpkin) decreased with distance from the road, indicating their relation to traffic and automotive emissions. The concentration of cadmium (Cd) was found to be independent of distance from road. There were significant differences in the concentrations of lead, cadmium, and nickel for different plant species and soils at various distances. The heavy metals contents both in the soils and vegetables for every distance from the road was found in the order nickel>lead>cadmium. DOI: http://dx.doi.org/10.3329/bjar.v37i1.11170 Bangladesh J. Agril. Res. 37(1): 9-17, March 2012

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Assessment of Heavy Metal Pollution of the Snow Cover of the Severodvinsk Industrial District (Russia, the Arkhangelsk Region).

10.21203/rs.3.rs-592133/v1 ◽

2021 ◽

Author(s):

E. Yu. Yakovlev ◽

A.S. Druzhinina ◽

E.N. Zykova ◽

S.B. Zykov ◽

N.L. Ivanchenko

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Snow Cover ◽

Metal Pollution ◽

Heavy Metal Pollution ◽

Power Plants ◽

Solid Phase ◽

Thermal Power ◽

Industrial District ◽

Arkhangelsk Region

Abstract In the present work, the content of heavy metals in soluble and insoluble forms of snow was investigated, as well as in waters from wells near the Severodvinsk industrial centre (Russia, the Arkhangelsk region). The content of heavy metals (Al, Fe, Ti, Mn, Zn, Cr, Cu, Ni, Pb, Co, V, As, and Cd) in the melt snow filtrate and solid residue was measured using the ICP-MS method. On the territory of the city, there are high concentrations of metals, high values of electrical conductivity and low pH values in objects most susceptible to anthropogenic pollution. It was determined that in urban conditions the share of the solid-phase component increases, which indicates an increase in dust fallout. Statistical analysis showed that most of the metals in the snow cover are linked with each other by a strong correlation (r> 0.9), and also made it possible to identify sources of pollution, namely thermal power plants and shipbuilding enterprises. The calculation of various indices for assessing the snow quality and natural waters determined the level of heavy metal pollution in the Severodvinsk industrial district as extremely high and dangerous for public health. The radiation parameters of water from wells were studied and a satisfactory radioecological characterisation of the research area was established.

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Assessment of Heavy Metal Pollution in Soils from Farms in the Vicinity of Durumi Quarry Site in Mpape, Abuja Nigeria

Current World Environment ◽

10.12944/cwe.13.3.09 ◽

2018 ◽

Vol 13 (3) ◽

pp. 360-373

Author(s):

FATIMAH OYENIKE OJO ◽

TUKURA BITRUS WOKHE ◽

MADU PASCAL CHIMA

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Metal Pollution ◽

Heavy Metal Pollution ◽

Rainy Season ◽

Soil Depth ◽

Chemical Properties ◽

Dry Season ◽

Soil Samples ◽

World Health

Seasonal concentrations of eight total and bioavailable heavy metals (Cr, Cu, Cd, Zn, Mn, Ni, Pb an Fe), along with some physico chemical properties of soil in vegetable farms around the rock quarry in Durumi, Abuja was assessed to know the level of heavy metal pollution of the soil. Control and actual soil samples were collected from depths of 0.0 -5.0cm and 5.0 - 10.0cm during dry and rainy seasons. Heavy metal concentrations varied inconsistently in samples and control. Dry season levels of Zn(5.20mg/kg), Mn(19.44mg/kg), Ni(1.69mg/kg) and Pb(4.56mg/kg) and rainy season levels of Zn (0.26mg/kg), Pb(22.53mg/kg) at soil depth of 0.0 - 5.0cm, and dry season levels of Zn(1.19mgkg) and Ni(1.62mg/kg) along with rainy season levels of Cr (0.44mg/kg), Cd (0.06mg/kg), Zn(0.09mg/kg) and Fe(6.74mg/kg) at soil depth of 5.0 -10.0cm were all higher in samples than controls. However, seasonal mean total heavy metals in the soil samples were lower than the Maximum Allowable Limits (mg/Kg) for World Health Organization (WHO) and Food and Agriculture Organization (FAO). During dry season, heavy metals that indicated anthropogenic content, had anthropogenic levels that ranged in the order: Cd(16.67%) < Cu(54.17%)

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The spatial distribution pattern of heavy metal concentrations in urban soils — a study of anthropogenic effects in Berehove, Ukraine

Open Geosciences ◽

10.2478/s13533-012-0179-7 ◽

2014 ◽

Vol 6 (3) ◽

Cited By ~ 5

Author(s):

Tímea Vince ◽

György Szabó ◽

Zoltán Csoma ◽

Gábor Sándor ◽

Szilárd Szabó

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Land Use ◽

Spatial Distribution ◽

Statistical Analysis ◽

Urban Soils ◽

Heavy Traffic ◽

Anthropogenic Activity ◽

Limit Values ◽

Metal Contents

AbstractIn the present study we examined the Ba, Cd, Cr, Cu, Fe, Mn, Ni, Pb and Zn contamination levels of the soils of Berehove, a small city in West-Ukraine. As a first step we determined the spatial distribution of the heavy metal contents of the urban soils; then, by studying the land use structure of the city and by statistical analysis we identified the major sources of contamination; we established a matrix of correlations between the heavy metal contents of the soils and the different types of land use; and finally, we drew a conclusion regarding the possible origin(s) of these heavy metals. By means of multivariate statistical analysis we established that of the investigated metals, Ba, Cd, Cu, Pb and Zn accumulated in the city’s soils primarily as a result of anthropogenic activity. In the most polluted urban areas (i.e. in the industrial zones and along the roads and highways with heavy traffic), in the case of several metals (Ba, Cd, Cu, Pb, Zn) we measured concentration levels even two or three times higher than the threshold limit values. Furthermore, Cr, Fe and Ni are primarily of lithogenic origin; therefore, the soil concentrations of these heavy metals depend mainly on the chemical composition of the soil-forming rocks.

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Determination of Molybdenum Contents and Relation of Some Heavy Metals in the Soil of Meadow-Pasture Terraces Between Kırıkhan-Reyhanlı

Turkish Journal of Agriculture - Food Science and Technology ◽

10.24925/turjaf.v7i1.13-21.1997 ◽

2019 ◽

Vol 7 (1) ◽

pp. 13 ◽

Cited By ~ 1

Author(s):

Mehmet Yalçın ◽

Kerim Mesut Çimrin

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Metal Pollution ◽

Soil Samples ◽

Molybdenum Content ◽

Limit Values ◽

Significant Relationships ◽

Metal Contents ◽

Different Depths

This study was aimed to determine the molybdenum content of meadow - pasture soil between Kırıkhan and Reyhanlı in Hatay province and to determine the relations of the molybdenum content with some heavy metals in the soil. For this purpose, two different depths (0-20 and 20-40 cm) representing grassland pasture lands and 80 soil samples from 40 different points were taken. Cadmium (Cd), Cobalt (Co), Nickel (Ni), Lead (Pb), Copper (Cu), Iron (Fe), and Molybdenum (Mo) contents were determined in the soil samples. The contents of the available Cd, Co, Pb, Cu, Fe, Ni and Mo of the soil were determined by reading the 0.005 M DTPA + 0.01 M CaCl2 + 0.1 M TEA extracts in the ICP instrument. The results of the research shows that the Cd contents of the soils are between 0.01-0.32 ppm; Co contents are from 0.01 to 4.97 ppm; Ni contents 0.00 to 20.00 ppm; Pb contents 3.00-67.00 ppm; Cu contents 0.26-7.48 ppm; The Fe contents are between 4.00 and 61.00 and the Mo contents are between 0.001 and 0.064 ppm. It was determined that there are significant positive relationships between Co, Ni, Pb, Cu and Fe contents of Mo in the soil. It was also determined that there are significant positive significant relationships between Cd and Co; Co with Ni, Pb, Fe and Pb and Cu, Fe and Cu and Fe. No heavy metal pollution was found when the heavy metal contents of the regional soils were compared with the limit values.

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Isolation and identification of microbes that tolerate heavy metals

Proceedings International ◽

10.33263/proceedings21.018018 ◽

2020 ◽

Vol 2 (1) ◽

pp. 18

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Minimal Inhibitory Concentration ◽

Contaminated Soil ◽

Metal Pollution ◽

Heavy Metal Pollution ◽

Inhibitory Concentration ◽

Soil Samples ◽

Isolation And Identification ◽

Bacteria And Fungi

The greatest pollution earth is facing today is heavy metal pollution. So, there is a necessity to find a remedy to clear up this problem. A study was undergone by isolating the bacteria and fungi from the contaminated soil samples by determining its characteristics to resist heavy metals. Several methods have been determined to control the occurrence of the substances in the environment. Studies have shown that the isolated microbes have shown minimal inhibitory concentration. This can be used as a bioremediation method to drive away from heavy metal pollution as much as possible.

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PESTICIDES BIOACCUMULATION AND THEIR SOIL POLLUTANT EFFECT

IRAQI JOURNAL OF AGRICULTURAL SCIENCES ◽

10.36103/ijas.v52i1.1234 ◽

2021 ◽

Vol 52 (1) ◽

pp. 36-47

Author(s):

B. A. Othman ◽

E. S. Kakey

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Metal Pollution ◽

Pollution Prevention ◽

Pollution Load Index ◽

Soil Samples ◽

Pollution Load ◽

Greenhouse Soil ◽

Pesticides Residue ◽

Very High

This study was aimed to investigate pesticides bioaccumulation and their soil pollutant effect. The experiment was included sixteen active greenhouses in Erbil plane, and conducted during September 2017 and March 2018. The present study revealed that the pesticides residue of pyridabine, thiamethoxam, abamectin and spirodiclofen were detected in greenhouse soil samples. The values of soil heavy metals contaminations factor (CF) revealed, that the studied greenhouse soil samples were ranged from low to very high contamination, while for pesticides were ranged from non to high contaminated. Soil pollution load index results supported that, the greenhouse soil was contaminated especially by Cr, Ni and Co. Pollution load index (PLI) was ranged from 7.751 to 0.303; supporting that the soils were contaminated in most sites. It could be concluded that, significant need for the development of pollution prevention and scientific strategies to reduce heavy metal pollution and pesticide accumulation residuals within greenhouses in Erbil plane.

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Correlations between magnetic enhancement and heavy metal pollution in the urban soils of an industrial area in Shanghai

10.5194/egusphere-egu2020-1117 ◽

2020 ◽

Author(s):

Mei Li

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Magnetic Susceptibility ◽

Metal Pollution ◽

Heavy Metal Pollution ◽

Urban Soils ◽

Power Plants ◽

Industrial Area ◽

Toxic Heavy Metals ◽

Baoshan District

Correlations between magnetic enhancement and heavy metal pollution in the urban soils of an industrial area in Shanghai&#160;Mei Li, Zi-Chen He, Xue-Feng HuSchool of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China&#160;Fifty-three topsoil samples (0-5 cm) on the sides of highways surrounding the Bao Steel Company were collected in Baoshan District of Shanghai, Southeast China. Physical-chemical properties and magnetic susceptibility of the topsoils were analyzed. Close to the Yangtze River Estuary, the soils in the study area in the northern part of Baoshan District, Shanghai, were mostly derived from tidal sediments of the estuary. The topsoils were thus alkaline, with pH in a range of 8.0-8.6. The content of organic matter in the topsoils was in a range of 8.0-78.6 mg g-1. The content of Fe in the topsoils varied greatly, possibly influenced by the industrial emissions from local metal smelters and power plants. The content of total Fe (Fet) in the topsoils was in a range of 21.0-68.6 mg g-1, with an average of 33.7 mg g-1; free Fe (Fed), 8.5-25.2 mg g-1, with an average of 13.8 mg g-1; amorphous Fe (Feo), 2.2-40.4 mg g-1, with an average of 13.1 mg g-1. Correspondingly, the magnetic signals of the topsoils were significantly enhanced and varied greatly from site to site. Magnetic susceptibility of the topsoils was in a range of 35.3-1722.7&#215;10-8 m3 kg-1, with an average of 408.5&#215;10-8 m3 kg-1. The topsoil with the maximum magnetic susceptibility, 1722.7&#215;10-8 m3 kg-1, was coarse in grain size and located beside some machinery, cement and material factories. Magnetic susceptibility of the topsoils was significantly correlated with Fet, Fed and Feo (r=0.712, 0.777, 0.961, n=53; p<0.01). The contents of toxic heavy metals, Zn, Pb, Cr, Co, Mn and Ni, in the topsoils were also analyzed. It was found that heavy metals were highly accumulated in the topsoils. The contents of Mn, Cr and Ni in the topsoils were more than 2 times the background values in the soils of Shanghai, and Pb and Zn were more than 4 times the background values. Moreover, magnetic susceptibility of the topsoils was positively significantly correlated with the content of Zn, Mn and Ni (r=0.884, 0.819, 0.564, p<0.01; n=53). This suggests that magnetic susceptibility of the topsoils can be used to indicate the degree of heavy metal pollution to some extent. There are many iron smelting factories and coal-fired power plants in the study area, which emitted a high amount of Fe-containing magnetic particles. The small particles had a large surface area and often adsorbed toxic heavy metals. When the particles were settled down on the ground, both magnetic signals and heavy metal contents of the topsoils were enhanced simultaneously. Therefore, the magnetic techniques are a promising means to study and evaluate the pollution of urban soils.

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Sarcocornia neei as an Indicator of Environmental Pollution: A Comparative Study in Coastal Wetlands of Central Chile

Plants ◽

10.3390/plants7030066 ◽

2018 ◽

Vol 7 (3) ◽

pp. 66 ◽

Cited By ~ 1

Author(s):

Verónica Meza ◽

Camilo Lillo ◽

Daniela Rivera ◽

Eva Soto ◽

Rodrigo Figueroa

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Metal Pollution ◽

Heavy Metal Pollution ◽

Coastal Wetlands ◽

Central Zone ◽

Soil Samples ◽

Stress Factors ◽

Central Chile ◽

High Concentrations

Being adapted to saline environments, halophytes are plant species that have received considerable attention due to their ability to cope with environmental stress factors, such as high concentrations of soluble salts and heavy metals. In this work, we focused on determining if the Sarcocornia neei (S. neei) plant can be considered as an indicator of heavy metal pollution in soil. This was done by analyzing the concentration of cadmium (Cd), lead (Pb), copper (Cu), and arsenic (As) in plants and soil sampled from two wetlands in the central zone of Chile: a wetland contaminated by industrial activities and a wetland protected by the Chilean government. In addition, 14 fertility parameters (pH, electrical conductivity, organic matter, nitrogen (N), phosphorus (P), potassium (K), sodium (Na), Pb, calcium (Ca), magnesium (Mg), Manganese (Mn), zinc (Zn), iron (Fe), and boron (B)) were analyzed for soil samples in both wetlands. This was done to differentiate between available elements and contamination by heavy metals. Plant and soil samples in the contaminated wetland exhibited significantly higher heavy metal concentrations in comparison to samples analyzed from the protected wetland. This indicates that the S. neei plant can be further researched as an indicator of heavy metal pollution in saline soils and possibly for phytoremediation purposes.

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Evaluation of Heavy Metal Pollution in the Suame Industrial Area, Kumasi, Ghana

Journal of Health and Pollution ◽

10.5696/2156-9614-6-10.56 ◽

2016 ◽

Vol 6 (10) ◽

pp. 56-63 ◽

Cited By ~ 1

Author(s):

Frempong Acheampong ◽

John Wiafe Akenten ◽

Rafiatu Imoro ◽

Havor Richard Agbesie ◽

Daniel Abaye

Keyword(s):

Heavy Metals ◽

Heavy Metal ◽

Metal Pollution ◽

Heavy Metal Pollution ◽

Industrial Area ◽

The United States ◽

Soil Samples ◽

Residential Areas ◽

Limit Values ◽

Industrial Areas

Background. Heavy metal pollution in industrial and residential areas in cities has become a public health issue in Ghana. Anecdotal evidence suggests that most industrial areas have elevated levels of heavy metals in soil. As a result of poor zoning and unregulated activities, large sections of seemingly industrial areas are also used as residential areas. There have been no studies on the levels of heavy metal contamination in such mixed activity locations. Objectives. The study was undertaken to identify possible heavy metals and their concentrations in soil samples collected from the Suame Industrial Area, Kumasi, Ghana. Methods. Soil samples were collected, processed and the concentration of copper (Cu), lead (Pb), zinc (Zn), cobalt (Co) and chromium (Cr) were analyzed using X-ray fluorescence (XRF). Results. The concentration of all metals exceeded the threshold limit values (TLV). They also exceeded the European Soil Bureau Network (ESBN) maximum allowable limits (MAL), and are therefore considered to be pollutants. The results, expressed as mean concentration±standard deviation mg/kg (percent above TLV) were Pb: 414.83±159.38 mg/kg (418.9%), Cr: 264.84±189.15 mg/kg (353.1%), Co: 68.15±34.12 mg/kg (227.2%), Cu: 265.82±80.53 mg/kg (354.4%) and Zn: 3,215.84±4,074.54 mg/kg (1,607.9%). Furthermore, the concentrations of Pb and Co exceeded the United States Environmental Protection Agency (USEPA) residential soil regional screening levels (RSLs). Conclusions. The elevated metal concentrations found in the present study demonstrate that the site is heavily polluted with Pb, Co and Cr. This is attributed to unregulated activities at the site; therefore, measures should be put in place to ameliorate the effects of potential heavy metal toxicity to workers, local residents and the environment. Re-zoning of activities and clear demarcation of residential and industrial areas is advocated.

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