Arsenic and heavy metal concentrations in surface soils and vegetables of Feni district in Bangladesh

Karim, Ramlee; Hossain, Shahadat; Miah, M.M.H.; Nehar, K.; Mubin, M. S. H.

doi:10.1007/s10661-007-0050-3

Cited by 31 publications

(19 citation statements)

References 18 publications

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“…Therefore, it is a potential route of entry of As and other toxic elements into crops and vegetables grown in the As contaminated areas. Some reported studies of As concentrations of Bangladeshi vegetables sampled various vegetables from regions of Bangladesh that are known to have high concentration of As in the ground water [2,27,55]. Alam et al [2] reported that the highest concentrations of As were detected in different types of vegetables including ghotkol, taro (loti from Arum plant) and snake gourd at 446, 440 and 489 µg/kg (dry weight) respectively, and a mean of 225 µg/kg (dry weight) for all vegetables.…”

Section: Discussionmentioning

confidence: 99%

“…Their study focused on the Pabna region of Bangladesh and the situation may be different for other regions. More recently, a value of 105 µg/day, just from consumption of vegetables was estimated for Bangladeshis [55] (see Table 4). Although there are differences in the estimates of daily intake between different studies, overall the concentration of As in the Bangladeshi diet is very high and may explain the observation of adverse health outcomes in the Bangladeshi population.…”

Section: Discussionmentioning

confidence: 99%

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Intake of arsenic and selenium in a Bangladeshi population investigated using inductively coupled plasma mass spectrometry

Al-Rmalli

Jenkins

Haris

2017

BSI

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Abstract. Millions of people in Bangladesh are exposed to high concentration of the toxic element arsenic (As) through drinking water and consumption of foods. It has also been reported that Bangladeshis have a low intake of the essential element selenium (Se), which is known to be important as an antioxidant and has been suggested to counteract the toxicity of As. We report here on total intake of As and Se in a Bangladeshi population, based on inductively coupled plasma mass spectrometric (ICP-MS) analysis of a range of Bangladeshi foods. The total daily intake of As and Se from foods was estimated to be 74.2 and 87.7 µg/day, respectively. If As from water, used for drinking and cooking rice, is included the TDI increases to 385 µg of total As per day. An important finding of our study, contrary to suggestions given in other reports, is that the Bangladeshi diet does not appear to be deficient in Se and this may explain why the blood Se concentrations in Bangladeshis is similar to the USA population. This requires further investigation and detailed dietary and human biomonitoring studies on the Bangladeshi population should be conducted. Rice and fish were the main sources of dietary As and Se for Bangladeshis. Leafy vegetables could also be a significant contributor of high concentration of As in the Bangladeshi diet. The flesh and eggs of Hilsha (Tenualosa ilisha) species of fish were found to contain particularly high levels of total arsenic (range 0.77-6.15 mg/kg) although this is likely to be dominated by the non-toxic organoarsenic species.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Intake of arsenic and selenium in a Bangladeshi population investigated using inductively coupled plasma mass spectrometry

Al-Rmalli

Jenkins

Haris

2017

BSI

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“…2) are considered to mainly originate from the regional lithogenic factors of natural parent soils as reported by previous reports (Zhou et al 2008;Franco-Uría et al 2009). However, the elements in PC2 might also derive from the anthropogenic factors such as the agrochemical materials (including fertilizers and pesticides) according to the previous reports (Nziguheba and Smolders 2008;Karim et al 2008). In the present study, the mean contents of the three elements in most of the soil samples are not significantly higher than the background values as shown in Table 2, which indicates that these elements in soils may mainly originate from the regional lithogenic sources.…”

Section: Principal Component Analysismentioning

confidence: 96%

Evaluation of ecological risk and source of heavy metals in vegetable-growing soils in Fujian province, China

Huang

Chen

et al. 2011

Environ Earth Sci

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Heavy metal pollution in vegetable-growing soils is of increasing concern due to the potential health risk via food chain. The present study aimed at assessing the potential ecological risk (RI) of heavy metals (HMs) in the vegetable-growing soils collected from Fujian Province, China, and identifying the potential sources with multivariable methods including correlation matrix and principal component analysis (PCA). The concentrations of HMs including Pb, Cd, Hg, Cr, As, Cu, Zn, and Ni in 160 soils collected from 25 sites of vegetable-growing land in Fujian Province, China, are measured with inductively coupled plasma mass spectrometry and hydrogen generationatomic fluorescence spectrometer, respectively. Results show that most of the soil samples have been seriously contaminated with HMs, especially the metals of Hg, Cd, and Pb, compared with both of the background values of soils in Fujian Province and the limitation of total HMs in soil environmental quality for edible agricultural products set in China (HJ 332-2006). The indexes of RI indicate that only 8% of the 25 sites are environmentally safe, whereas according to the present study 28% of the sampling sites are heavily contaminated with HMs with 628-1,076 of the RI values. Based on PCA analysis, Zn, Cd, and Pb associated with PC1 are found to derive from anthropogenic sources, especially the local industrial activities, such as porcelain plants in Dehua, zinc metallurgical plants in Nan'an, and sewage irrigation from industrial estate in Taijiang. The concentrations of As, Ni, and Cu loaded in PC2 are found to be mainly controlled by natural factors (i.e., the lithogenic process of natural parent soils). Hg in PC3 is also found to originate from the anthropogenic sources, such as local coal combustion in Longhai and industrial activities in Cangshan. However, Cr in PC3 is mainly derived from the lithogenic sources.

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“…It is contrary to the concept of green analytical chemistry, and solid sample preparation appears to be more preferable from this point of view. X-ray fluorescence, [8][9][10] neutron activation analysis, 11,12 and laser induced breakdown spectroscopy 6,13,14 are applied for direct analysis of soil in the form of pellets or powders. However, these methods are used not as often as ICP-AES due to the considerable matrix effects and require the calibration samples similar to the analyzed ones.…”

Section: Introductionmentioning

confidence: 99%

Solid Sampling in Analysis of Soils by Two-jet Plasma Atomic Emission Spectrometry

Zaksas

Veryaskin

2017

ANAL. SCI.

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The possibility of direct analysis of soils by two-jet plasma atomic emission spectrometry was investigated using certified reference materials of black earth, grey desert and red soils. It was shown that As, B, Cd, Cu, Hg, P, and V could be determined after a 2-fold, and Be, Co, Cr, Ga, Nb, Pb, and Zn-after a 10-fold dilution of the samples by a spectroscopic buffer using calibration samples based on graphite powder. The strongest matrix effects were revealed for red soil having the highest Al and Fe concentration, which led to the overstated concentrations of some elements. The overstating factor depended on analyte concentration and was no more than 2. A clear advantage of the suggested technique over existing methods is the simple sample preparation process, which requires no reagents except a spectroscopic buffer, and possibility of using the same calibration samples for analysis of different soils.

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Arsenic and heavy metal concentrations in surface soils and vegetables of Feni district in Bangladesh

Cited by 31 publications

References 18 publications

Intake of arsenic and selenium in a Bangladeshi population investigated using inductively coupled plasma mass spectrometry

Intake of arsenic and selenium in a Bangladeshi population investigated using inductively coupled plasma mass spectrometry

Evaluation of ecological risk and source of heavy metals in vegetable-growing soils in Fujian province, China

Solid Sampling in Analysis of Soils by Two-jet Plasma Atomic Emission Spectrometry

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