Effects of mining wastewater discharges on heavy metal pollution and soil enzyme activity of the paddy fields

Hu, Xuefeng; Jiang, Ying; Shu, Ying; Hu, Xing; Liu, Liming; Luo, Fan

doi:10.1016/j.gexplo.2014.08.001

Cited by 177 publications

(89 citation statements)

References 64 publications

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“…The main sources of heavy metals in farmland soils include mining and smelting, sewage irrigation, sludge reuse and fertilizer application (Chen et al, 1999). Due to extensive and nonstandard production processes of some mining and smelting enterprises, large quantities of heavy metals affect farmland through wastewater irrigation, waste transportation, sludge application and atmospheric deposition which has been shown to be particularly important in southern China with abundant mineral resources (Hu et al, 2014;Xu et al, 2014). Extensive irrigation with poorly treated water from sewage in China has been employed since the 1950s, with the affected area increasing from 115 km2 in 1957 to 36000 km2 in 1998 (Huang and Wang, 2009), remaining above 30000 km2 since then.…”

Section: Introductionmentioning

confidence: 99%

Impacts of soil and water pollution on food safety and health risks in China

Lü

Shi

Wang

et al. 2015

Environment International

924

318

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Tieyu. 2015. Impacts of soil and water pollution on food safety and health risks in China. Copyright © 2015 Elsevier B.V.This version available http://nora.nerc.ac.uk/509736/ NERC has developed NORA to enable users to access research outputs wholly or partially funded by NERC. Copyright and other rights for material on this site are retained by the rights owners. Users should read the terms and conditions of use of this material at http://nora.nerc.ac.uk/policies.html#access NOTICE: this is the author's version of a work that was accepted for publication in Environment International. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Environment International, 77. 5-15. 10.1016International, 77. 5-15. 10. /j.envint.2014 www.elsevier.com/ Contact CEH NORA team at noraceh@ceh.ac.ukThe NERC and CEH trademarks and logos ('the Trademarks') are registered trademarks of NERC in the UK and other countries, and may not be used without the prior written consent of the Trademark owner. Impacts of Soil and Water Pollution on Food Safety and Health Risks in China AbstractEnvironmental pollution and food safety are two of the most important issues of our time. Soil and water pollution, in particular, have historically impacted on food safety which represents an important threat to human health. Nowhere has that situation been more complex and challenging than in China, where a combination of pollution and an increasing food safety risk have affected a large part of the population. Water scarcity, pesticide over-application, and chemical pollutants are considered to be the most important factors impacting on food safety in China. Inadequate quantity and quality of surface water resources in China have led to the long-term use of waste-water irrigation to fulfill the water requirements for agricultural production. In some regions this has caused serious agricultural land and food pollution, especially for heavy metals. It is important, therefore, that issues threatening food safety such as combined pesticide residues and heavy metal pollution are addressed to reduce risks to human health. The increasing negative effects on food safety from water and soil pollution have put more people at risk of carcinogenic diseases, potentially contributing to 'cancer villages' which appear to correlate strongly with the main food producing areas. Currently in China, food safety policies are not integrated with soil and water pollution management policies. Here, a comprehensive map of both soil and water pollution threats to food safety in China is presented and integrated policies addressing soil and water pollution for achieving food safety are suggested to provide a holistic approach.

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Section: Introductionmentioning

confidence: 99%

Impacts of soil and water pollution on food safety and health risks in China

Lü

Shi

Wang

et al. 2015

Environment International

924

318

View full text Add to dashboard Cite

show abstract

“…More importantly, the assessment of the accumulation of toxic heavy metal in food crops which are irrigated with WWTP effluents is of prime interest. Many previous studies have assessed the health risks of heavy metals via the consumption of food crops: grown on reclaimed tidal flat (Li et al, 2012), cultivated in mining area (Hu et al, 2014), and irrigated with wastewater and treated wastewater (Christou et al, 2014;Chung et al, 2011;Kalavrouziotis et al, 2008;Kiziloglu et al, 2008). The average concentrations of heavy metals in different crops and the total daily intake of crops have been used in these assessments.…”

Section: Introductionmentioning

confidence: 99%

Health risk assessment of heavy metals through consumption of vegetables irrigated with reclaimed urban wastewater in Algeria

Cherfi

Achour

Cherfi

et al. 2015

Process Safety and Environmental Protection

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“…When the Cd concentration reached 30 mg kg -1 over its limit invertase and peroxidase activities were reduced. Heavy metals may reduce enzymes activities interacting with the enzyme-substrate complex denaturing the enzyme protein or interacting with the protein-active group [18][19]. They can also affect synthesis of enzymes by microbial cells.…”

Section: Discussionmentioning

confidence: 99%