Determination of arsenic levels in lake water, sediment, and foodstuff from selected area of Sindh, Pakistan: Estimation of daily dietary intake

Arain, Mohammad Balal; Kazi, Tasneem Gul; Baig, Jameel Ahmed; Jamali, Mohammad Khan; Afridi, Hassan Imran; Shah, Abdul Qadir; Jalbani, Nusrat; Sarfraz, Raja Adil

doi:10.1016/j.fct.2008.11.009

Cited by 198 publications

(85 citation statements)

References 45 publications

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“…1,[3][4][5][6] This is due to the natural processes and anthropogenic activities i.e., pesticides and insecticides used for agricultural lands, untreated waste water sewage sludge as agricultural fertilizer and synthetic fertilizers. 3,24,30,32,33 The obtained results showed some significant differences among the concentration of organic and inorganic species of As in two sampling locations of groundwater ( Table 2). The oAs was analyzed after separation by Al2O3 and about 2 -5% of TAs was found in groundwater samples (Table 2), indicated its lower availability.…”

Section: ×100mentioning

confidence: 98%

Inorganic Arsenic Speciation in Groundwater Samples Using Electrothermal Atomic Spectrometry Following Selective Separation and Cloud Point Extraction

et al. 2011

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A method has been developed for speciation of total, total inorganic and organic arsenic (As) species in groundwater samples. The inorganic species of As (III,V) were separated from organic forms by adsorbing on alumina (Al2O3) whereas the organic As was eluted out. The retained inorganic As species was eluted by 0.2 M HCl. Then eluent As III and As V were formed as complexes with ammonium pyrrolidinedithiocarbamate (APDC) and molybdate, respectively. Then As III -PDC and As V -molybdate complexes were quantitatively extracted into a non-ionic surfactant Triton X-114. The total As was determined by conventional preconcentration procedures. The resulting solutions of each method were determined by ETAAS with modifier. The main factors affecting the separation and cloud point extraction (CPE) were investigated in detail. The limits of detection values were found as 0.04 and 0.20 μg L -1 for As III and As V , respectively, whereas limits of quantification were observed as 0.13 and 0.33 μg L -1 for As III and As V , respectively. Standard addition method confirmed the accuracy. The recoveries of As III and As V were found in the range of 98 -99%. The proposed method was applied to groundwater samples collected from different areas of Sukkur district.

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Section: ×100mentioning

confidence: 98%

Inorganic Arsenic Speciation in Groundwater Samples Using Electrothermal Atomic Spectrometry Following Selective Separation and Cloud Point Extraction

et al. 2011

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“…Reference values for the food consumption rate of vegetables and fruits were taken from literature as 0.3 kg/ person/day for vegetables and 0.4 kg/person/day of fruits, respectively, while 60 kg was considered as an average adult weight (Wang et al 2005;WHO 2003). Arain et al (2009), Amin et al (2013) and Hossain et al (2013) calculated the HRI value for the risk estimation of different toxic metals and pesticides via food consumption and they used the general consumption rates (regardless seasonal and generic wise consumption) due to data scarcity. Moreover, the information collected by Arain et al (2009) …”

Section: Human Health Risk Assessmentmentioning

confidence: 99%

“…Arain et al (2009), Amin et al (2013) and Hossain et al (2013) calculated the HRI value for the risk estimation of different toxic metals and pesticides via food consumption and they used the general consumption rates (regardless seasonal and generic wise consumption) due to data scarcity. Moreover, the information collected by Arain et al (2009) …”

Section: Human Health Risk Assessmentmentioning

confidence: 99%

Pesticide residues in fruits and vegetables from Pakistan: a review of the occurrence and associated human health risks

Syed

Alamdar

Mohammad

et al. 2014

Environ Sci Pollut Res

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The main objective of the review is to document, assess and analyze the results of the previously reported data on levels of different pesticides in selected fruits and vegetables from Pakistan. The findings of the previous studies clearly indicated that more than 50 % of the samples were contaminated with organophosphate, pyrethroids and organochlorine pesticides. Many studies reported that among fresh fruits and vegetables tomato, apple, melon, mango, grapes, and plum crossed the FAO/WHO permissible limits for these contaminants residual levels. The comparison of other regions showed that observed levels were found above maximum residue limits (MRLs) in 50 % of the samples but were in agreement with the studies from neighboring countries like China and Bangladesh. Higher hazard risk index (HRI) values were calculated for dieldrin, methamidophos, o,p′-DDT, diazinon and p,p′-DDT in apple, mango, banana, melon, potato and onion. The review also highlights that data on pesticide residues in foodstuff is scarce which should be overcome by further extending studies from different areas of Pakistan. In order to ascertain the provision of food suitable for human consumption, it is imperative to monitor pesticides in food commodities by the country's authorities and enforce guidelines based on permissible limits.

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“…(arsenic concentration: 10000-20000 g/L, pH 9.5-10) [7], Union Lake in southern New Jersey (2780 g/L) [8,9], water bodies in Ghana which was influenced by gold mining [10], and a series of subarctic lakes near Yellowknife, Northwest Territories, Canada (average level, 270 g/L, range of concentration, 64-530 g/L) [11]. The arsenic concentrations in the lake water of Yangzonghai were higher than those in Manchar Lake in Pakistan (35-157 g/L) [12], Moira Lake in Canada (35-100 g/L) [13], etc., indicating that there was serious contamination in Yangzonghai.…”

Section: The Levels In Lake Watermentioning

confidence: 99%

Levels, trends and risk assessment of arsenic pollution in Yangzonghai Lake, Yunnan Province, China

Wang

Pan

et al. 2010

Sci. China Chem.

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The arsenic contamination accident in Yangzonghai Lake, Yunnan has been of wide concern. In order to investigate the arsenic distribution and concentration trends after the accident, samples including lake water, sediments, soil, aquatic organisms and crops were collected in November 2008, as well as in February, May and September 2009. The average arsenic concentrations (arithmetic average) in lake water in the four sampling events were 176.9, 147.3, 159.3, and 161.1 g/L, while those in the sediments were 32.87, 62.41, 62.99, and 46.96 g/g, respectively. The highest content of total arsenic in soil in the vicinity of Yangzonghai was 23.33 µg/g, which was below the limits of the relevant national standard. The total arsenic levels in most aquatic plants were in the range of 100-200 g/g, with Vallisneria natans (Lour.) Hara having the highest concentration of ~300 g/g. The arsenic levels of fish and shrimps were in the range of 1.52-11.4 g/g (dry weight).

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Determination of arsenic levels in lake water, sediment, and foodstuff from selected area of Sindh, Pakistan: Estimation of daily dietary intake

Cited by 198 publications

References 45 publications

Inorganic Arsenic Speciation in Groundwater Samples Using Electrothermal Atomic Spectrometry Following Selective Separation and Cloud Point Extraction

Inorganic Arsenic Speciation in Groundwater Samples Using Electrothermal Atomic Spectrometry Following Selective Separation and Cloud Point Extraction

Pesticide residues in fruits and vegetables from Pakistan: a review of the occurrence and associated human health risks

Levels, trends and risk assessment of arsenic pollution in Yangzonghai Lake, Yunnan Province, China

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