The presence of radioactive and metal contaminants in wild mushrooms grown in Chattogram hill tracts, Bangladesh

Barua, Troyee; Bhuian, A. K. M. Saiful Islam; Hossain, Shahadat; Deb, Nipa; Ahmed, Md. Farid; Rashid, Md. Abdur; Khandaker, Mayeen Uddin

doi:10.1007/s10967-019-06579-6

Cited by 9 publications

(3 citation statements)

References 29 publications

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“…The toxicity of chromium to the human body is mainly attributable to the absorption of Cr (VI) within the lung and gastrointestinal tract [ 54 ], and even to a certain extent by intact skin [ 55 ]. Again, high rates of Cr (VI) can cause several bio-toxic effects, including to the hepatic, renal, and hematological systems [ 56 , 57 ]. Table 3 shows the highest mean concentration of Cr-VI, at 40.57 μg/g in Langkawi (LKW) samples, followed by 40.15 μg/g in Kota Belud (KBL) and 30.3 μg/g in Semporna (SPN).…”

Section: Resultsmentioning

confidence: 99%

Elevated Concentrations of Metal(loids) in Seaweed and the Concomitant Exposure to Humans

Khandaker

Chijioke

Heffny

et al. 2021

Foods

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While the consumption of seaweed and seaweed-based products is very common amongst East Asian nations, forming a notable component of the daily diet, relatively very few studies have concerned the concentrations of heavy metals in these together with potential effects on human health. The present study analyses the concentrations of 17 elements in locally resourced seaweed, also assessing potential noncarcinogenic and carcinogenic risks. The samples were ground, homogenized, and quantified using the ICP-OES technique. It has been found that the essential elements K, Ca, Mg, Zn, and Na typically show concentrations somewhat greater than a number of potentially toxic metals, in particular, Cd, Pb, Ag, and As, with exceptions being Ni, Cr-VI, and Si. Statistical analysis indicates all of the latter to have similar origin, with increased concentration of these metals within the marine ecosystem. While the daily estimated intake of most metals is seen to be within the daily dietary allowance level recommended by various international organizations, the noncarcinogenic risk shows a value greater than unity, estimated via the hazard quotient. This indicates a potential for adverse effects to health arising from consumption of the sampled seaweed. The carcinogenic risk resulting from nonessential elements shows values greater than the United States Environmental Protection Agency (US-EPA) reference limit of 10−4. Considering the nonbiodegradability of heavy metals and metalloids and their potential accumulation in seaweed, there is need for critical examination of metal levels in the seaweeds obtained from the present study locations, together with the introduction of practices of removal of heavy metals via bio-adsorbent techniques.

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Section: Resultsmentioning

confidence: 99%

Elevated Concentrations of Metal(loids) in Seaweed and the Concomitant Exposure to Humans

Khandaker

Chijioke

Heffny

et al. 2021

Foods

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“…The activity concentration of each radionuclide of interest in each sample was evaluated using the following equation [12]:…”

Section: Measurement By Gamma-ray Spectrometrymentioning

confidence: 99%

The Activity Concentrations, Radiation Contamination, and Hazards from Wastes and Soil Samples in Nasirabad Industrial Area, Chattogram, Bangladesh

Mojumder¹,

Ahmed²,

Kamal³

et al. 2020

JEP

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Soils and other solid wastes from industrial areas of Nasirabad, Chattogram are usually dumped or used for land development. Information about the radioactivity level presented on these soil and wastes enables one to assess any possible radiological hazard to humankind by the use of such materials. A total of 37 (31 soils and 6 solid waste) samples near from different types of industries along four kilometre range were collected. The presence and activity concentrations of naturally occurred radioactive materials (NORM) and anthropogenic radionuclides in the samples were estimated using HPGe detector of 40% relative efficiency. The activity concentration of 226 Ra, 232 Th and 40 K were found to be ranging from 8 ± 2 to 131 ± 18.33 with an average of 21 Bq•kg −1 , 10 ± 2.69 to 133 ± 15.96 with an average of 40 Bq•kg −1 and 81 ± 22.68 to 930 ± 260.40 with an average of 449 Bq•kg −1 respectively. Besides this, some hazard indices like, the radium equivalent activity (Ra eq), external hazard index (H ex), internal hazard index (H in), and the activity concentration index (I γ) were calculated to assess the radiation hazard in this region. The averages of calculated hazard indices were within the normal limits, except the activity concentration index, which shows elevated values. The outcomes of this study could serve as important baseline radiological data for future epidemiological studies and environmental monitoring initiatives in the study area.

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“…Numerous studies of the three districts separately are available on the metal contamination in soils, water and sediments, however, this study has focused on the assessment of the quality of soils combinedly in Rangamati, Khagrachari and Bandarban of CHT area (Barua et al, 2019;Biswas et al, 2010;Osman, 2014;Wang et al, 2016). The study not only evaluated eight different metals such as Lead, Cadmium, Copper, Zinc, Iron, Manganese, Nickel and Chromium but also many well-defined hazards characterization parameters/indices such as geo-accumulation index (Igeo), contamination factor (CF), pollution load index (PLI), enrichment factor (EF) and potential ecological risk index (PERI) were used to assess environmental risk.…”

Section: Introductionmentioning

confidence: 99%

“Assessment of Heavy Metal Pollution in Soil of Chattogram Hill Tracts, Bangladesh and Concomitant Health Risk”

Barua

Bhuian

Khandaker

et al. 2021

Preprint

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The increased human population and associated activities may create a risk in the ecological balance of Chattogram Hill Tracts (CHT), Bangladesh via contamination of soil with toxic heavy metals. Thus, the present study was conducted to assess the concentration of heavy metals (Lead, Cadmium, Copper, Zinc, Iron, Manganese, Chromium and Nickel) in forest soils of the CHT area by using an atomic absorption spectrometer. The degree of contamination of soil was evaluated by five indices: geo-accumulation index (I geo ), enrichment factor (EF), contamination factor (CF), pollution load index (PLI) and potential ecological risk index (PERI). According to these criteria, these soils can be classified as moderately contaminated with some metals. Furthermore, the identification of pollution sources based on principal component analysis and hierarchical cluster analysis have revealed that all analyzed metals are anthropogenic except Fe. Calculated hazard index>1 indicates the possibility of noncarcinogenic effect due to higher value of Fe. Carcinogenic risks through the ingestion, inhalation and dermal pathway for carcinogenic elements (Pb, Cd, Cr, and Ni) shows a non-significant risk (CR<10 -6 ) for both children and adults living in the studied area. Measured data may help the policymakers to reduce the potential effects of soil contamination on eco-environment and human health.

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The presence of radioactive and metal contaminants in wild mushrooms grown in Chattogram hill tracts, Bangladesh

Cited by 9 publications

References 29 publications

Elevated Concentrations of Metal(loids) in Seaweed and the Concomitant Exposure to Humans

Elevated Concentrations of Metal(loids) in Seaweed and the Concomitant Exposure to Humans

The Activity Concentrations, Radiation Contamination, and Hazards from Wastes and Soil Samples in Nasirabad Industrial Area, Chattogram, Bangladesh

“Assessment of Heavy Metal Pollution in Soil of Chattogram Hill Tracts, Bangladesh and Concomitant Health Risk”

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