Ten-year regional monitoring of soil-rice grain contamination by heavy metals with implications for target remediation and food safety

He, Mengting; Shen, Haotian; Li, Zhangtao; Wang, Lu; Wang, Fan; Zhao, Keli; Liu, Xingmei; Wendroth, Ole; Xu, Jianming

doi:10.1016/j.envpol.2018.10.070

Cited by 115 publications

(38 citation statements)

References 49 publications

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“…Many articles have dealt with the soil contamination and food safety issue, mainly in relation to heavy metals in agricultural soils (Lu et al, 2015;Hussain et al, 2019;Rai et al, 2019). For example, He et al (2019) studied heavy metal contamination in a soil-rice grain system in Wenling (China) and found that farmland soil could pose potential risks to ecosystems, food safety and, ultimately, to human health. These authors observed moderate contamination by Cd, Cu, Zn and Ni in soil and that 20.7% of rice grain samples exceeded the Cd threshold value.…”

Section: Introductionmentioning

confidence: 99%

Legal measures to prevent and manage soil contamination and to increase food safety for consumer health: The case of Spain

Ramón

Lull

2019

Environmental Pollution

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This article contains a brief overview of the European and Spanish environmental law framework for the prevention of soil contamination, for the management of contaminated soils and for consumers health protection in relation to agricultural crops. Some important aspects of the legislative framework for the prevention and management of soil contamination include recognising the possible risk to both human health and ecosystems that certain agricultural and industrial activities pose given the use of organic and inorganic chemical substances of a hazardous nature and pathogenic microorganisms. It is worth highlighting the milestone that many national constitutions include about the right to the environment. This right entails the obligation to protect it and to, therefore, protect soil from any degradation, including contamination. Legislation that protects soil from contamination and, consequently human health and ecosystems, is related mainly to agricultural activities (use of sewage sludge on farmlands, use of wastewater for irrigation, use of organic fertilisers and pesticides), and to industrial and commercial soil-contaminating activities.Consumer protection may be achieved through a legal system of environmental liability, specific measures to prevent contaminants entering soil, managing contaminated soils and a food traceability system. It is crucial to make the penalties for soil contamination offenses, and for violators of protective prohibitions, effective, proportionate and dissuasive. Global standards and guidelines on soil contamination could provide national legislative systems with substantive and procedural legal mechanisms to help prevent and manage soil contamination. Main finding of the workA sound legal framework for soil contamination prevention and management is not only critical for food production and food safety, but also for soil conservation and human health.

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Section: Introductionmentioning

confidence: 99%

Legal measures to prevent and manage soil contamination and to increase food safety for consumer health: The case of Spain

Ramón

Lull

2019

Environmental Pollution

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“…In our study, the diversity in soil microbial carbon source usage was lower in monospecific Chinese hickory stands that were ten or more years old than in the Chinese hickory-broad-leaved mixed forest stands. The reasons for this difference may be the above-ground plant community composition that affects soil microbiome through, for example, litter deposition and root exudates [55][56][57][58], and the overall lower organic carbon content. Another possible explanation is the different structure of soil organic C in the stands managed intensively for the longest period of time; lower proportions of easily degradable compounds may have resulted in lower abundances of microbe functional groups that decompose these compounds.…”

Section: Effects Of Intensive Management On Soil Microbial Functionalmentioning

confidence: 99%

Soil Organic Carbon Content and Microbial Functional Diversity Were Lower in Monospecific Chinese Hickory Stands than in Natural Chinese Hickory–Broad-Leaved Mixed Forests

Wang

Lin

et al. 2019

Forests

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To assess the effects of long-term intensive management on soil carbon cycle and microbial functional diversity, we sampled soil in Chinese hickory (Carya cathayensis Sarg.) stands managed intensively for 5, 10, 15, and 20 years, and in reference Chinese hickory–broad-leaved mixed forest (NMF) stands. We analyzed soil total organic carbon (TOC), microbial biomass carbon (MBC), and water-soluble organic carbon (WSOC) contents, applied 13C-nuclear magnetic resonance analysis for structural analysis, and determined microbial carbon source usage. TOC, MBC, and WSOC contents and the MBC to TOC ratios were lower in the intensively managed stands than in the NMF stands. The organic carbon pool in the stands managed intensively for twenty years was more stable, indicating that the easily degraded compounds had been decomposed. Diversity and evenness in carbon source usage by the microbial communities were lower in the stands managed intensively for 15 and 20 years. Based on carbon source usage, the longer the management time, the less similar the samples from the monospecific Chinese hickory stands were with the NMF samples, indicating that the microbial community compositions became more different with increased management time. The results call for changes in the management of the hickory stands to increase the soil carbon content and restore microbial diversity.

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“…However, this pollution problem is an important issue for public policies, because the risk assessment must be integrated into the framework of public health and environmental security [18], because concentrations of heavy metals have been found in crops closely related to soil contamination, for example, according to the Chinese environmental quality standard for soil (GB15618-1995), 64.4, 78.9, 67.5, and 94.1% of the soil samples in Dexing, Yangjiazhangzhi, Hongqiling, and Baiyin exceed the maximum allowed concentration of Cd for farmland, respectively [19]. The risk assessment has indicated that priority attention is required due to the carcinogenic risk of Cr, Cd, and As in soil and rice grains, as well as the potential ecological risks [20].…”

Section: Soils Contaminated By Heavy Metalsmentioning

confidence: 99%

Introductory Chapter: Soil Contamination and Alternatives for Sustainable Development

Vázquez-Luna¹,

Cuevas-Díaz²

2019

Soil Contamination and Alternatives for Sustainable Development

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Ten-year regional monitoring of soil-rice grain contamination by heavy metals with implications for target remediation and food safety

Cited by 115 publications

References 49 publications

Legal measures to prevent and manage soil contamination and to increase food safety for consumer health: The case of Spain

Legal measures to prevent and manage soil contamination and to increase food safety for consumer health: The case of Spain

Soil Organic Carbon Content and Microbial Functional Diversity Were Lower in Monospecific Chinese Hickory Stands than in Natural Chinese Hickory–Broad-Leaved Mixed Forests

Introductory Chapter: Soil Contamination and Alternatives for Sustainable Development

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