Geostatistical analyses and fractionation of heavy metals in urban soil from industrial district in Weinan, NW China

2012 ◽  
Vol 67 (7) ◽  
pp. 2129-2140 ◽  
Author(s):  
Xiaoping Li ◽  
Linna Feng
Keyword(s):  
Heavy Metals ◽  
Urban Soil ◽  
Industrial District ◽  
Nw China

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

2011 ◽  
Vol 71-78 ◽  
pp. 2912-2915
Author(s):  
Jian Hua Ma ◽  
Can Li ◽  
Jian Wei Zhang ◽  
Yun Zeng Chen
Keyword(s):  
Economic Growth ◽  
Heavy Metals ◽  
Heavy Metal ◽  
Land Use ◽  
Metal Pollution ◽  
Urban Soils ◽  
Soil Samples ◽  
Industrial District ◽  
Growth Changes ◽  
Soil Metal

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.

scholarly journals THE ROLE OF PH IN HEAVY METAL CONTAMINATION OF URBAN SOIL

2014 ◽  
Vol 22 (4) ◽  
pp. 311-318 ◽  
Author(s):  
Asta KAZLAUSKAITĖ-JADZEVIČĖ ◽  
Jonas VOLUNGEVIČIUS ◽  
Virginija GREGORAUSKIENĖ ◽  
Saulius MARCINKONIS
Keyword(s):  
Heavy Metals ◽  
Soil Ph ◽  
Urban Soil ◽  
Heavy Metal Contamination ◽  
Agricultural Soils ◽  
Chemical Elements ◽  
Chemical Reactivity ◽  
Atomic Emission ◽  
Parent Material ◽  
Ph Level

The aim of this study to assess interdependence between urban soil pH and its accumulation of heavy metals. The article meant to be a contribution to a better knowledge of peculiarities and diagnostics of urban soil and its anthropogenic transformation. The hypothesis assumes that relationship between urban soil pH and its accumulation of heavy metals may be determined by the origin and age of parent material as well as the nature and degree of the anthropogenic impact. The spatial variability of topsoil pH level was performed in 100 points in eldership of Šnipiškės of the city Vilnius. Laboratory analysis was based on ISO 10390:2005. Samples were collected from 20 cm topsoil layer in the same sampling points where have been analysed concentrations of topsoil chemical elements using optical atomic emission spectrophotometry. The contamination of urban soils exhibits somewhat different compared to agricultural soils. In contradiction to earlier studies in Lithuanian agricultural soils where strong correlation between soil pH and Cr, Cd, Pb, Ni, Cu and Zd found, the conducted analysis shows a statistically reliable, but very weak (<0.3) correlation between the soil pH and concentration of contaminants. The proof to this correlation is provided by an existing relationship between pH and the concentration of copper (r = 0.20), mercury (r = 0.15), strontium (r = –0.12) and the overall contamination index (r = 0.12). The applied statistical analysis, however, failed to reveal the nature of interdependence between the soil pH and its contamination with studied heavy metals there concentration of contaminant chemical elements depends on the pH range of the soil and, conversely, the chemical reactivity of the soil changes affect on the concentration of studied chemical elements.

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

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.

scholarly journals The Land Snail, Eobania vermiculata, as a Bioindicator of the Heavy Metal Pollution in the Urban Areas of Sulaimani, Iraq

2021 ◽  
Vol 13 (24) ◽  
pp. 13719
Author(s):  
Aso H. Saeed H. Salih ◽  
Abdullah A. Hama ◽  
Karzan A. M. Hawrami ◽  
Allah Ditta
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Urban Areas ◽  
Urban Soil ◽  
Land Snail ◽  
Land Snails ◽  
Contaminated Site ◽  
Emission Spectrometry ◽  
Permissible Limits ◽  
Eobania Vermiculata

Land snails are crucial consumers in the terrestrial environment and beneficial significant bioindicators to evaluate the chemical impact in the ecosystem, especially on urban lands. The present study aimed to investigate the concentration of heavy metals such as As, Cr, Ni, Pb, and Zn in urban soil and study whether Eobania vermiculata acts as a bioindicator for heavy metal contamination in an urban area. Thirty soil and snail samples in triplicate from each sampling site were taken from the urban areas of Suliamani. After a microwave-assisted digestion procedure, every sample was analyzed by inductively coupled plasma-optical emission spectrometry. Results showed that the concentration of chromium (Cr) in each snail sample was significantly high. The maximum Cr concentration (15.87 mg kg−1) was recorded in the snail sample collected from Ali Kamal Park, which was adjacent to a very crowded traffic road. The As concentration in snail samples ranged from 0.08 to 1.004 mg kg−1, and it was below the permissible limits. However, the concentrations of heavy metals in urban soil locations were below their background measurements, except for nickel (Ni) which was above the permissible limits. The safest site in the study area was Chaviland 1, while the most contaminated site was the Ha-wary Shar Park. The snails bioaccumulated metals in their tissues in the following order, Cr > Zn > Ni, and this bioaccumulation occurred more on the main road locations, which represented potentially contaminated places due to anthropogenic activities. Moreover, there was no correlation among the heavy metals within the soil samples when compared to the similar metals in the snail samples, due to the low concentration of heavy metals in soil, excluding Ni, from where the snail samples were collected. Consequently, the land snail, E. vermiculata, is an appropriate sentinel organism for some metals, mainly for Cr, and the bioindicator monitoring with this snail should be extended to mixtures of heavy metals, since such relationships frequently occur in soil.

scholarly journals Chemometric Evaluation of the Heavy Metals in Urban Soil of Fallujah City, Iraq

2015 ◽  
Vol 06 (11) ◽  
pp. 1279-1292 ◽  
Author(s):  
Emad A. Salah ◽  
Ahmed M. Turki ◽  
Shemma N. Mahal
Keyword(s):  
Heavy Metals ◽  
Urban Soil
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