Arsenic in agricultural soils across China: Distribution pattern, accumulation trend, influencing factors, and risk assessment

Zhou, Yuting; Niu, Lili; Liu, Kai; Yin, Shanshan; Liu, Weiping

doi:10.1016/j.scitotenv.2017.10.232

Cited by 109 publications

(49 citation statements)

References 42 publications

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“…35 However, this element is related to cancer risk. 36,37 Arsenic is used in the manufacture of several products such as glass, ceramics, electronics, cosmetics, in pesticides and herbicides formulations 38 and biocides that usually are used to wastewater treatment. 39 The land in the study area is used to produce a variety of products, such as corn, soy, tobacco, cassava, sugar cane and rice, and agrochemicals are usually employed by farmers.…”

Section: Discussionmentioning

confidence: 99%

“…As are related to agricultural activities. In the literature, for instance, Zhou et al 38 determined As concentrations in arable soils and found an increasing accumulation trend over past decades, which is related to the long-term application of phosphate fertilizers in agricultural practice, while Bolan et al 40 related this element to the production of rice grain and complementary medicines.…”

Section: Discussionmentioning

confidence: 99%

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Biomonitoring of Toxic Elements in Plants Collected Near Leather Tanning Industry

Cruz¹,

Ferreira²,

Andrade³

et al. 2018

J. Braz. Chem. Soc.

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The present work aimed the study of atmospheric deposition of toxic elements near to a tannery industry by collecting black material deposited on leaf surfaces of cinnamon trees (Cinnamomum zeylanicum). Elements such as As, Ba, Cr, Cu, Fe, Ni, Pb, Sb, V, and Zn were analyzed by inductively coupled plasma mass spectrometry (ICP-MS). For comparison purpose, black particles deposited on the leaf surface of lemon trees (Citrus lemon) collected away from the tannery industry were also analyzed. Results showed that the amount of toxic elements found in the black particles collected near tannery area was significantly higher than the amount of those measured in the comparison site. Enrichment factors (EF) of As and Cr were markedly impacted by anthropogenic emissions, whereas the other elements were moderately/slightly enriched. Cluster analysis (CA) identified the leather industry as the anthropogenic source, while As possibly comes from the wide use of pesticides and herbicides in agricultural practices. The results indicated that emissions from the leather industry and agricultural activities are the main source of pollution in this area.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Biomonitoring of Toxic Elements in Plants Collected Near Leather Tanning Industry

Cruz¹,

Ferreira²,

Andrade³

et al. 2018

J. Braz. Chem. Soc.

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show abstract

“…El CR se determinó para cada vía de exposición. Los valores de CR fueron sumados y expresados como un Riesgo Cancerígeno Total (TCR) (4), que se comparó con el valor de referencia aceptable 1E-05, a partir del cual se considera la probabilidad de que 1 individuo desarrolle cáncer por cada 100.000 habitantes expuestos [30], [44], [46], [47].…”

Section: Evaluación De La Exposición Y Caracterización Del Riesgounclassified

Análisis espacial del riesgo para la salud por exposición a metales pesados en el campo minero Ponce Enríquez, Ecuador

Jiménez-Oyola¹,

García-Martínez²,

Ortega³

et al. 2019

Proceedings of the 17th LACCEI International Multi-Conference for Engineering, Education, and Technology: “Industry, Innovation

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This article presents the results of a preliminary assessment of the health risk of the population of the Ponce Enríquez mining district, with the aim of providing evidence of the human exposure to carcinogenic and systemic contaminants related to mining activities. We have worked with the concentrations of As, Cd, Cr, Cu, Hg, Ni and Zn in water and soil samples collected between 2009 and 2017. Finally, the adverse effects on health in adults and children have quantified for two exposure scenarios: recreationally and agricultural. The evaluation has provided unacceptable levels of carcinogenic and systemic risk for both receptors. The consumption of locally grown vegetables, the intake of water and the accidental ingestion of soil have been the main routes of exposure, with As, Hg, and Cr as the main contributors.

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“…Arsenic (As) contamination in soils and water has become a serious environmental problem, especially in South and Southeast Asia [1,2]. Mining and industrial activities are the main sources of As contamination to the environments [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Dynamics of gene expression associated with arsenic uptake and transport in rice during the whole growth period

Pan

et al. 2020

BMC Plant Biol

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Background: Genes associated with arsenite uptake and transport in rice plants (i.e., OsLsi1, OsLsi2, OsLsi3, OsLsi6 and OsABCC1) have been identified to date. However, their expression over time during the whole growth period of rice under arsenite stress conditions is still poorly understood. In this study, the dynamics of gene expression associated with arsenite transport and arsenic concentrations in different organs of rice were investigated to determine the critical period(s) of arsenite uptake and translocation regulated by gene expression during the whole growth period. Results: The relative expression of OsLsi2 and OsLsi1 in the roots was upregulated and reached its highest value (2-ΔΔCt = 4.04 and 1.19, respectively) at the jointing stage (9 weeks after transplantation), in which the arsenic concentration in roots also was the highest at 144 mg/kg. A range from 45.1 to 61.2% of total arsenic accumulated in the roots during seedling to heading stages (3-16 weeks), which was mainly associated with the relatively high expression of OsABCC1 (1.50-7.68), resulting in arsenic located in the vacuoles of roots. Subsequently, the As translocation factor from root to shoot increased over time from heading to milky ripe (16-20 weeks), and 74.3% of the arsenic accumulated in shoots at the milk stage. Such an increase in arsenic accumulation in shoots was likely related to the findings that (i) OsABCC1 expression in roots was suppressed to 0.14-0.75 in 18-20 weeks; (ii) OsLsi3 and OsABCC1 expression in nodes I, II, and III was upregulated to 4.01-25.8 and 1.59-2.36, respectively, in 16-20 weeks; and (iii) OsLsi6 and OsABCC1 expression in leaves and husks was significantly upregulated to 2.03-5.26 at 18 weeks. Conclusions: The jointing stage is the key period for the expression of arsenite-transporting genes in roots, and the heading to milky ripe stages are the key period for the expression of arsenite-transporting genes in shoots, both of which should be considered for regulation during safe rice production in arsenic-contaminated paddy soil.

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Arsenic in agricultural soils across China: Distribution pattern, accumulation trend, influencing factors, and risk assessment

Cited by 109 publications

References 42 publications

Biomonitoring of Toxic Elements in Plants Collected Near Leather Tanning Industry

Biomonitoring of Toxic Elements in Plants Collected Near Leather Tanning Industry

Análisis espacial del riesgo para la salud por exposición a metales pesados en el campo minero Ponce Enríquez, Ecuador

Dynamics of gene expression associated with arsenic uptake and transport in rice during the whole growth period

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