Identification of trace element sources and associated risk assessment in vegetable soils of the urban–rural transitional area of Hangzhou, China

Chen, Tao; Liu, Xingmei; Zhu, Muzhi; Zhao, Keli; Wu, Jianjun; Xu, Jianming; Huang, P. M.

doi:10.1016/j.envpol.2007.03.004

Cited by 272 publications

(123 citation statements)

References 30 publications

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“…In this study, the evaluation criterion is based on local soil background value. The evaluation process was performed in the same procedure of Chen et al (2008): the synthesis index of each sample was firstly evaluated based on Eq. (4).…”

Section: Methodsmentioning

confidence: 99%

Spatial-Based Assessment of Metal Contamination in Agricultural Soils Near an Abandoned Copper Mine of Eastern China

Qin

Luo

Chen

et al. 2012

Bull Environ Contam Toxicol

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An investigation about metal contamination on agricultural soils was carried out near an abandoned copper mine in eastern China. Results showed the average concentrations of Cu, Pb, Zn and Cd in the 155 soil samples were 147, 53.8, 158, 0.32 mg kg -1 respectively, which were 4.6-, 2.2-, 2-, 1.7-fold of the corresponding background value. According to the Chinese Farmland Environmental Quality Evaluation Standards for Edible Agricultural Products, it was found 18.4 % of the soils belonged to heavily and moderately contaminated soils.

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Section: Methodsmentioning

confidence: 99%

Spatial-Based Assessment of Metal Contamination in Agricultural Soils Near an Abandoned Copper Mine of Eastern China

Qin

Luo

Chen

et al. 2012

Bull Environ Contam Toxicol

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“…Geostatistics uses the technique of variogram to measure the spatial variability of the recognized variable and provides the input parameters for the spatial interpolation of kriging (Webster and Oliver 2001). Kriging has been widely used as an important interpolation method at different scales, especially in soil pollution (Chen et al 2008). The semivariogram γ (h), measures the mean variability between two points x and x + h, as a function of their distance h, for data location at discrete sampling locations.…”

Section: Studymentioning

confidence: 99%

“…It deteriorates growth, morphology and metabolism of microorganisms in soils (Giller et al 1998). In recent years, with the rapid industrialization and urbanization, heavy metal contamination has become an important issue in many countries (Chen et al 2008). Iran and other countries located in the arid belt of the Earth face severe water scarcity.…”

mentioning

confidence: 99%

Spatial distribution and mapping of risk elements pollution in agricultural soils of southern Tehran, Iran

Hani¹,

Pazira²,

Manshouri³

et al. 2010

Plant Soil Environ.

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In order to evaluate risk elements and their spatial distribution in agricultural fields south of Tehran, statistics, geostatistics and geographic information system (GIS) were used. The content of Hg, As, Pb, Mo, and Be were determined in 106 samples. The results showed that primary inputs of As and Hg were due to anthropogenic sources, while Pb, Mo and Be were associated with pedogenic and anthropogenic factors. Ordinary kriging was carried out to map the spatial patterns of risk elements and disjunctive kriging was used to quantify the probability of risk elements concentrations higher than their guide value. The results show that As, Hg, Mo and Be exhibit pollution risk in the study area. The high pollution sources evaluated were related with usage of urban and industrial wastewater for agricultural practice. The results of this study are helpful for risk assessment of environmental pollution for decision making for vegetable production and ecosystem improving.

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“…Kriging has been widely used as an important interpolation method at different scales, especially in studies on soil pollution [3]. The semivariance (ℎ), is calculate as (1):…”

Section: Geostatisticsmentioning

confidence: 99%

Spatial Variability of Heavy Metals in the Soils of Ahwaz Using Geostatistical Methods

Hani¹,

Sinaei²,

Gholami³

2014

IJESD

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Abstract-Heavy metals pollution and their toxic levels in soils is one of the major problems associated with the environment. Like other large cities, Ahwaz, in Southwest of Iran, is exposed to all kinds of environmental pollutions which pose serious problems for human health. A total of 50 soil samples were taken randomly from the surface soils in Ahwaz and the elements of cadmium and lead were measured. Geostatistic and non geostatistic methods were used to determine the spatial distribution. The probability maps were produced using Geographic Information System methods. On the other hand, the Radial Basis Functions is the best interpolation method for Cd and Pb with absoluteerrorof0.209. About 90percentof study area had more cadmium pollution than standard levels while Pb contamination in about 33 percent of the study area is more than standard levels.

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Identification of trace element sources and associated risk assessment in vegetable soils of the urban–rural transitional area of Hangzhou, China

Cited by 272 publications

References 30 publications

Spatial-Based Assessment of Metal Contamination in Agricultural Soils Near an Abandoned Copper Mine of Eastern China

Spatial-Based Assessment of Metal Contamination in Agricultural Soils Near an Abandoned Copper Mine of Eastern China

Spatial distribution and mapping of risk elements pollution in agricultural soils of southern Tehran, Iran

Spatial Variability of Heavy Metals in the Soils of Ahwaz Using Geostatistical Methods

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