The effect of reclamation on the distribution of heavy metals in saline–sodic soil of Songnen Plain, China

Wang, Lixia; Yan, Baixing; Zhu, Lilu; Ou, Yang

doi:10.1007/s12665-014-3464-6

Cited by 10 publications

(9 citation statements)

References 29 publications

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“…When comparing the rice from different sources, Hg levels in rice from northeastern China (NEC: 1.67–8.31 ng/g, averagely 3.61 ng/g) and from northern Jiangsu (NJS) (1.46–8.48 ng/g, averagely 4.04 ng/g; Figure 2 a) were comparable ( p > 0.05) to each other. This finding is consistent with the generally low Hg contents in NEC and NJS soils: The average content of Hg in NJS topsoil is 0.1 mg/kg, and it is even lower for the soils of NEC, e.g., 0.064 mg/kg in Liaoning Province [ 28 ], 0.031 mg/kg in Heilongjiang Province [ 29 ], and 0.04 mg/kg for Jilin Province [ 30 ]. These values are much lower than the values stated in the national guideline for farmland (0.25 mg/kg when soil pH ≤ 5.5, 0.35 mg/kg when 5.5 < pH ≤ 6.5, 0.70 mk/kg when 6.5 < pH ≤ 7.5, 1.5 mg/kg when pH > 7.5, Environmental quality standards for soils, Ministry of Environmental Protection of China, GB 15618-2008) [ 31 ].…”

Section: Resultssupporting

confidence: 81%

Assessing the Risk of Hg Exposure Associated with Rice Consumption in a Typical City (Suzhou) in Eastern China

Gang

Gong

Zhu³

et al. 2017

IJERPH

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Recent studies have revealed that not only fish but also rice consumption may significantly contribute to human exposure to mercury (Hg) in Asian countries. It is therefore essential to assess dietary exposure to Hg in rice and its associated health risk. However, risk assessments of Hg in rice in non-contaminated areas are generally lacking in Asian countries. In the present study, Hg concentrations were measured in rice samples collected from markets and supermarkets in Suzhou, a typical city in Eastern China. In addition, the rice ingestion rates (IR) were assessed via a questionnaire-based survey of Suzhou residents. The data were then used to assess the risk of Hg exposure associated with rice consumption, by calculating the hazard quotient (HQ). Hg contents in rice samples were well below the national standard (20 μg/kg), ranging from 1.46 to 8.48 ng/g. They were also significantly (p > 0.05) independent of the area of production and place of purchase (markets vs. supermarkets in the different districts). Our results indicate a low risk of Hg exposure from rice in Suzhou (HQ: 0.005–0.05), despite the generally high personal IR (0.05–0.4 kg/day). The risk of Hg associated with rice consumption for Suzhou residents was not significantly affected by the age or sex of the consumer (p > 0.05). Overall, our results provide a study of human exposure to Hg in rice in Chinese cities not known to be contaminated with Hg. Future studies should examine Hg exposure in different areas in China and in potentially vulnerable major food types.

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Section: Resultssupporting

confidence: 81%

Assessing the Risk of Hg Exposure Associated with Rice Consumption in a Typical City (Suzhou) in Eastern China

Gang

Gong

Zhu³

et al. 2017

IJERPH

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“…Therefore, the poor balance of Na, K, Ca and Mg ions in the site difficult the Furthermore, heavy metals concentrations bound to Fe and Mn oxides were up to 21%, 63%, 46%, 40% and 46% of their total concentrations for Pb, Cu, Ni , Zn, Cd , and Ni respectively (Table 2). Apparently, Fe and Mn oxides may be contributing to heavy metal fixation in LABR site, which has been reported before [42].…”

Section: Soil Fertility Ph and Salinitysupporting

confidence: 55%

A Defunct Lead-Acid Battery Recycling May Lead Strong Soil Pollution: A Case of Study in Mexico

Carrillo-González¹,

Ruiz-Olivares²,

A³

et al. 2019

J Soil Water Sci

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“…Meanwhile, the extra organic matter involved in those human activities may lead to the significantly higher amount of Zn in reclamation habitat, as suggested by Grybos et al (2007)), who suggested that SOM may prevent the release of heavy metals, encouraging the accumulation of these elements. In general, if those reclamation activities continue, the total amount of Cu, Cr, and Zn will exceed their corresponding guidelines, resulting in lower soil quality in the wetland reserve and causing great damage to the whole coastal area (Wang et al 2015a). : RS (reclamation habitat).…”

Section: Impacts Of Reclamation On the Total Amount And Pollution Indmentioning

confidence: 99%

Effects of reclamation on heavy metal pollution in a coastal wetland reserve

Yang

Jiang

et al. 2016

J Coast Conserv

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Owing to accelerating reclamation activities in the coastal wetland reserves, it is of great importance to analyze the effects of wetland reclamation on heavy metal pollution in these areas. Soil samples were collected from reclamation and natural habitats in Yancheng National Nature Reserve for Coastal Rare Birds in Jiangsu, China to investigate the effects of reclamation on the total amounts, availability, and vertical distribution of seven elemental heavy-metal pollutants. In general, the total amount and availability each element were relatively low in the two habitats and were classified as Bno pollution^. Reclamation was found to significantly increase the total amount of As, Cu, and Zn as well as the pollution degrees of As, Cr, and Zn. The availability of Cu, Pb, Cd, and Cr can also be significantly affected by reclamation. Furthermore, surface-accumulation patterns of the total amounts of these heavy metals could be observed in both habitats, and the availabilities of these elements were higher in deeper soils. Reclamation also had significant impacts on the vertical distribution of Cu, Pb, Cd, and Zn. It is essential to properly monitor nearby aquacultural activities, freshwater irrigation, and traffic pollution during plant harvest to alleviate the negative effects of these human activities.

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The effect of reclamation on the distribution of heavy metals in saline–sodic soil of Songnen Plain, China

Cited by 10 publications

References 29 publications

Assessing the Risk of Hg Exposure Associated with Rice Consumption in a Typical City (Suzhou) in Eastern China

Assessing the Risk of Hg Exposure Associated with Rice Consumption in a Typical City (Suzhou) in Eastern China

A Defunct Lead-Acid Battery Recycling May Lead Strong Soil Pollution: A Case of Study in Mexico

Effects of reclamation on heavy metal pollution in a coastal wetland reserve

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