Identifying the Criteria of Cadmium Pollution in Paddy Soils Based on a Field Survey

Ji, Weichang; Chen, Zhongqiu; Li, Dan; Ni, Wuzhong

doi:10.1016/j.egypro.2012.01.006

Cited by 7 publications

(5 citation statements)

References 8 publications

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“…The rocks which contain high phosphate also have higher cadmium content compared to the rocks that don't contain phosphate nutrients (Roberts, 2014). Most of the Cd metal moves from the soil to crop through harvesting and washing Cd to deeper soil layers (Ji et al, 2012;Bigalke et al, 2016). Irrigation can increase the mobilization of Cd metal, especially Cd metal which is adsorbed on the ground (Salmanzadeh et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Farmer Awareness to the Dangers of Heavy Metal Cadmium (Cd) Pollution due to Over-Fertilization in Sragen Regency Central Java

Pradika

Masykuri

Supriyadi

2019

Caraka Tani J. Sustain. Agric.

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P fertilization can add Cd metal content to agricultural land because the raw material for making P fertilizer comes from phosphate rock which naturally contains Cd metal. Farmers assume that by providing fertilizers with high doses can provide maximum results. Community’s knowledge of heavy metals in the environment is still low. This study aims to examine the awareness of farmers in Sragen Regency Central Java to the potential of heavy metal pollution that occurs. This research was conducted from July to December 2017. The type of this research is quantitative descriptive research using a questionnaire with the number of respondents amounting to 10% of the number of farmers, namely 30 farmers. The results show that about 61.11% of the community doesn’t understand that the presence of heavy metals in the environment can cause many problems. About 60% of the community doesn’t understand that the inorganic fertilizers commonly used by them contain heavy metals (especially Cd metal). People unaware of heavy metal pollution due to over-fertilization is 65.01%. Although the community's knowledge and awareness of heavy metals are still low, the community awareness about environmentally friendly agriculture is high (61.33%). About 53.34% of the community doesn’t know that their behavior in using inorganic fertilizers in the long term will increase the accumulation of Cd metal in agricultural land and rice plant tissue. About 70% of the community doesn’t know that agricultural land that is used continuously to plant (without interspersed with non-paddy crops) will cause land degradation.

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Section: Introductionmentioning

confidence: 99%

Farmer Awareness to the Dangers of Heavy Metal Cadmium (Cd) Pollution due to Over-Fertilization in Sragen Regency Central Java

Pradika

Masykuri

Supriyadi

2019

Caraka Tani J. Sustain. Agric.

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“…After collection and transformation into dosage form, the heavy metals confined in plants finally enter the human body and may disturb the normal functions of vital organs. Main heavy metals like cadmium (Cd), lead (Pb), mercury (Hg), arsenic (As) and chromium (Cr) have been reported to be more toxic to plants than the others and have no other reported biological functions to plants (Fauziah et al, 2010;Ji et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Heavy Metal Concentrations in Some Common Medicinal Plants from Different Geographical Locations in Douala, Cameroon

Liliane¹,

Zapfack²,

Youmbi³

et al. 2016

Int. J. Curr. Res. Biosci. Plant Biol.

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This study was aimed at investigating and comparing the levels of five heavy metals; Pb, Cd, Cr, Zn, and Cu in both leaves, shoot and root samples of six common medicinal plants: Aloe vera, Ageratum conyzoides, Cleome ciliata, Cymbopogon citratus, Eremomastax speciosa, and Justicia secunda collected from refuse dumps, roadsides and residential areas in Douala. The plant samples collected were divided into different parts. Concentrations of heavy metals were determined using Atomic Absorption Spectrometry. Results revealed that the selected medicinal plants accumulate heavy metals at different concentrations. Heavy metals repartition decreased in the trend roots>shoots>leaves. There was a significant difference (p<0.0001) in the content of metals between plants from different collection points. Samples collected from refuse dumps showed significantly higher concentrations (p<0.0001) of heavy metals followed by roadsides, then residential areas. Comparison of results with defined permissible limits led to the conclusion that the levels of all five heavy metals were beyond the permissible limits in the majority of medicinal plants analyzed. Only Ageratum conyzoides was below the permissible limit for Cu. High heavy metal concentrations in plants indicate high level of contamination and this raises consumers' health risk concerns.

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“…It has also been found that the sources of Cd, Hg and As in agricultural soil of many locations in China are influenced by excessive use of pesticides and fertilizers [6,14,29]. Phosphate fertilizers which are widely used in agricultural production in Tanzania are reported to be rich in Hg, Cd, As, Pb, Cu and Ni [30].…”

Section: Sources Of Contaminationmentioning

confidence: 99%

“…The normal plant growth can be inhibited by high levels of heavy metal in the soil, leading to reduction of crop yield [4,5]. The heavy metals cadmium (Cd), arsenic (As) and chromium (Cr) have been reported to be more toxic to plants than the others and have no any reported biological functions to plants [6]. Other heavy metals with no reported benefits to plants are lead (Pb), nickel (Ni) and mercury (Hg) [4].…”

Section: Introductionmentioning

confidence: 99%

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Heavy Metals Contamination in Agricultural Soil and Rice in Tanzania: A Review

Simon

Mtei

Kimanya

2016

IJEPP

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Heavy metals contamination in agricultural soil is a potential environmental threat to the safety of agricultural food crops such as rice which is consumed by majority of Tanzanians. The aim of this review is to put together available information on sources of heavy metals, their extent of contamination in agricultural soil and in rice, the risk of exposure through rice consumption as well as the relationship between heavy metals contamination in agricultural soils and in rice in Tanzania. There are several methods of determining the concentrations of heavy metals in soils and in rice. These include Inductively Coupled Plasma Mass Spectrometer (ICP -MS) and Energy Dispersive X -ray Fluorescence spectrometer (EDXRF). It has been mostly reported that the extent of heavy metals contamination in agricultural soils is influenced by their closeness to mining or industrial areas. The use of river waters in mining areas or wastewater from industries for irrigation has been associated to increasing levels of heavy metals in agricultural soils. The elevated level of heavy metals in agricultural soils leads to their accumulation in crops especially rice which upon consumption poses health effects to human and the ecosystem at large. This review suggests the need for determining the extent of heavy metals contamination in agricultural soils around potential areas such as mining and to link this with exposure assessment on heavy metals through rice consumption in Tanzania. This information is necessary to establish the extent at which rice consumers in Tanzania are at risk of heavy metals exposure.

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Identifying the Criteria of Cadmium Pollution in Paddy Soils Based on a Field Survey

Cited by 7 publications

References 8 publications

Farmer Awareness to the Dangers of Heavy Metal Cadmium (Cd) Pollution due to Over-Fertilization in Sragen Regency Central Java

Farmer Awareness to the Dangers of Heavy Metal Cadmium (Cd) Pollution due to Over-Fertilization in Sragen Regency Central Java

Heavy Metal Concentrations in Some Common Medicinal Plants from Different Geographical Locations in Douala, Cameroon

Heavy Metals Contamination in Agricultural Soil and Rice in Tanzania: A Review

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