Survey of heavy metal pollution and assessment of agricultural soil in Yangzhong district, Jiangsu Province, China

Huang, Shunsheng; Liao, Qilin; Hua, Ming; Wu, Xinmin; Bi, K.S.; Chen, Yan; Chen, B.; Zhang, X.Y.

doi:10.1016/j.chemosphere.2006.12.043

Cited by 438 publications

(209 citation statements)

References 8 publications

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“…This may be resulted in increased As contaminants in polished rice. Our results are convinced by the previous study that a paddy soil contaminated with a high As level, nearby abandoned mines increases the As content in rice grains (Huang et al, 2007). Zhu et al (2008) reported that As-contaminated soil and irrigated water are accumulated to the rice with a high As level, probably due to increased bioavailability of As from rice root.…”

Section: Resultssupporting

confidence: 79%

“…The chronic As exposure via drinking water with greater As amount than 50 µg/L in mine area has been led to serious health risk to residents, such as the skin manifestations, respiratory disease, gastro-intestinal, liver, and cardiovascular complicates, including cancer (Sharma and Sohn, 2009). The As-enriched soil and ground water are translocated to crops, and accumulated within plants as well as animals (Alam et al, 2002;Huang et al, 2007;William et al, 2007;Ma et al, 2008). The paddy fields impacted by As-enriched soil and ground water yield the rice with a high As content at 7.5 mg/kg (Liao et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

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Assessment of health risk associated with arsenic exposure from soil, groundwater, polished rice for setting target cleanup level nearby abandoned mines

Lee¹,

Kim²,

Jeong³

et al. 2011

Korean Journal of Soil Science and Fertilizer

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This study focused on health risk assessment via multi-routes of As exposure to establish a target cleanup level (TCL) in abandoned mines. Soil, ground water, and rice samples were collected near ten abandoned mines in November 2009. The As contaminations measured in all samples were used for determining the probabilistic health risk by Monte-Carlo simulation techniques. The human exposure to As compound was attributed to ground water ingestion. Cancer risk probability (R) via ground water and rice intake exceeded the acceptable risk range of 10 -6 ~ 10 -4 in all selected mines. In particular, the MB mine showed the higher R value than other mines. The non-carcinogenic effects, estimated by comparing the average As exposure with corresponding reference dose were determined by hazard quotient (HQ) values, which were less than 1.0 via ground water and rice intake in SD, NS, and MB mines. This implied that the non-carcinogenic toxic effects, due to this exposure pathway had a greater possibility to occur than those in other mines. Besides, hazard index (HI) values, representing overall toxic effects by summed the HQ values were also greater than 1.0 in SD, NS, JA, and IA mines. This revealed that non-carcinogenic toxic effects were generally occurred. The As contaminants in all selected mines exceeded the TCL values for target cancer risk (10 -6 ) through ground water ingestion and rice intake. However, the As level in soil was greater than TCL value for target cancer risk via inadvertent soil ingestion pathway, except for KK mine. In TCL values for target hazard quotient (THQ), the As contaminants in soil did not exceed such TCL value. On the contrary, the As levels in ground water and polished rice in SD, NS, IA, and MB mines were also beyond the TCL values via ground water and rice intake. This study concluded that the health risks through ground water and rice intake were greater than those though soil inadvertent ingestion and dermal contact. In addition, it suggests that the abandoned mines to exceed the risk-based TCL values are carefully necessary to monitor for soil remediation.

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Section: Resultssupporting

confidence: 79%

Section: Introductionmentioning

confidence: 99%

Assessment of health risk associated with arsenic exposure from soil, groundwater, polished rice for setting target cleanup level nearby abandoned mines

Lee¹,

Kim²,

Jeong³

et al. 2011

Korean Journal of Soil Science and Fertilizer

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“…During the past few decades, agricultural cultivation in this area has intensified in response to a steady increase in population and the relative scarcity of land [23]. Increased agricultural activity involves the intensive use of fertilizers, which contain heavy metals such as As, Cd, Hg, Ni, Pb and Zn; therefore, the continuous application of fertilizers and soil amendments can exacerbate the accumulation of heavy metals in agricultural regions [24][25][26]. Although determination of the risk associated with heavy metals accumulation within estuarine sediments in agricultural regions as a result of intensified agriculture is important to the formation of valley management strategies for the aquatic environment, this process is poorly understood.…”

Section: Introductionmentioning

confidence: 99%

Heavy metal sources and associated risk in response to agricultural intensification in the estuarine sediments of Chaohu Lake Valley, East China

Tang

Shan

Zhang

et al. 2010

Journal of Hazardous Materials

205

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a b s t r a c tIn this study, the source and risk associated with heavy metals in the estuarine sediments of Chaohu Lake Valley in East China were studied. The results demonstrated that most metal contents (Cd, Pb and Zn) increased continuously from 0.21, 8.05 and 73.76 mg/kg in the substrate to 0.33, 17.20 and 100.22 mg/kg in the surface sediments on average, respectively, in all ten estuaries evaluated. In addition, the high proportion of chemically reactive forms of Cd (18.10-33.60%) implied a moderately high risk, while the risk associated with Pb and Zn was moderate in most estuaries. Enrichment factor (EF) and cluster analysis (CA) were conducted to assess the metal sources. The EF values of Cd, Pb and Zn (4.96, 3.68 and 2.25, respectively) indicated that they had accumulated in the estuarine sediments. Additionally, CA suggested that their primary sources were anthropogenic, namely the extensive use of fertilizers. Therefore, heavy metal pollution due to agricultural intensification in Chaohu Lake Valley should be taken into account during the formation of valley management strategies for the water environment.

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“…In the case of total Cu, the sequence was field mustard>vineyards>aspar-agus fields when duration of land use change was considered. Although the concentrations of heavy metals in surface soil usually did not exceed the grade II limit of the Soil Environmental Quality Standards, significant increases were still found after land use change, suggesting some potential risk and possible effects on the quality of agricultural products (Huang et al 2007). The use of copper sulphate as a fungicide may have contributed to the Cu concentrations found in the soils where the land use had changed to vineyard systems.…”

Section: Heavy Metals In Surface Soilmentioning

confidence: 99%

Occurrence and distribution of heavy metals and tetracyclines in agricultural soils after typical land use change in east China

Pan

Chen

et al. 2013

Environ Sci Pollut Res

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Land use in east China tends to change from paddy rice to vegetables or other high-value cash crops, resulting in high input rates of organic manures and increased risk of contamination with both heavy metals (HMs) and antibiotics. This investigation was conducted to determine the accumulation, distribution and risks of HMs and tetracyclines (TCs) in surface soils and profiles receiving different amounts of farmyard manure. Soil samples collected from suburbs of Hangzhou city, Zhejiang province were introduced to represent three types of land use change from paddy rice to asparagus production, vineyards and field mustard cultivation, and divided into two portions, one of which was air-dried and sieved through 2-, 0.3-and 0.149-mm nylon mesh for determination of pH and heavy metals. The other portion was frozen at −20°C, freeze-dried and sieved through a 0.3-mm nylon mesh for tetracyline determination. HM and TC concentrations in surface soils of 14-year-old mustard fields were the highest with total Cu, Zn, Cd and ∑TCs of 50.5, 196, 1.03 mgkg −1 and 22.9 μgkg −1 , respectively, on average. The total Cu sequence was field mustard>vineyards>asparagus when duration of land use change was considered; oxytetracycline (OTC) and doxycycline were dominant in soils used for asparagus production; OTC was dominant in vineyards and chlortetracycline (CTC) was dominant in mustard soils. There were positive pollution relationships among Cu, Zn and ∑TCs, especially between Cu and Zn or Cu and ∑TCs. Repeated and excessive application of manures from intensive farming systems may produce combined contamination with HMs and TCs which were found in the top 20 cm of the arable soil profiles and also extended to 20-40 cm depth. Increasing manure application rate and cultivation time led to continuing increases in residue concentrations and movement down the soil profile.

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Survey of heavy metal pollution and assessment of agricultural soil in Yangzhong district, Jiangsu Province, China

Cited by 438 publications

References 8 publications

Assessment of health risk associated with arsenic exposure from soil, groundwater, polished rice for setting target cleanup level nearby abandoned mines

Assessment of health risk associated with arsenic exposure from soil, groundwater, polished rice for setting target cleanup level nearby abandoned mines

Heavy metal sources and associated risk in response to agricultural intensification in the estuarine sediments of Chaohu Lake Valley, East China

Occurrence and distribution of heavy metals and tetracyclines in agricultural soils after typical land use change in east China

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