Seasonal Variation of Heavy Metal Concentrations in Water and Plant Samples Around Tejgaon Industrial Area of Bangladesh

Mondol, MN; Chamon, AS; Faiz, B; Elahi, Syed Fazle

doi:10.3329/jbas.v35i1.7968

Cited by 43 publications

(39 citation statements)

References 12 publications

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“…Cr behavior in soil is controlled by soil pH and redox potential, while long term exposure to Cr can cause liver and kidney damage [38]. The observed Zn and Cr concentrations in studied soil around DEPZ probably comes from construction materials in the form of alloys for protective coating for iron and steel.…”

Section: Seasonal and Spatial Variation Of Heavy Metal Contentmentioning

confidence: 99%

“…Major sources of Ni in the soil are poorly treated wastewater that is discharged from ceramics, steel and alloys and other metal processing industries. Long term exposure of Ni through the food chain may contribute to health problems like skin allergies, dermatitis, rhinitis, nasal sinusitis, lung injury and nasal mucosal injury [38]. There is a growing environmental concern about Cd being one of the most eco-toxic metals, exhibiting highly adverse effects on soil health, biological activity, plant metabolism, and the health of humans and animals [33].…”

Section: Seasonal and Spatial Variation Of Heavy Metal Contentmentioning

confidence: 99%

“…Zn and Cr are heavy metals and their sources in industrial locations are usually anthropogenic [38]. The main anthropogenic sources of Zn are related to the non-ferric metal industry and agricultural practice [32,33].…”

Section: Seasonal and Spatial Variation Of Heavy Metal Contentmentioning

confidence: 99%

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Assessment of Heavy Metal Contamination of Agricultural Soil around Dhaka Export Processing Zone (DEPZ), Bangladesh: Implication of Seasonal Variation and Indices

et al. 2012

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Intense urbanization, large scale industrialization and unprecedented population growth in the last few decades have been responsible for lowering environmental quality. Soil contamination with metals is a serious concern due to their toxicity and ability to accumulate in the biota. The present work assessed the heavy metal contamination of agricultural soil in the close vicinity of the Dhaka Export Processing Zone (DEPZ) in both dry and wet seasons using different indices viz., index of geoaccumulation (I geo ), contamination factor (C ), degree of contamination (C ), modified degree of contamination (mC d ) and pollution load index (PLI). Samples were collected from the surface layer of soil and analyzed by Atomic Absorption Spectrophotometer (AAS). The trend of metals according to average concentration during the dry and wet seasons was As > Fe > Hg > Mn > Zn > Cu > Cr > Ni > Pb > Cd and As > Fe > Mn > Zn > Hg > Cu > Ni > Cr > Pb > Cd, respectively. Because of seasonal rainfall, dilution and other run-off during the wet season, metals from the upper layer of soil were flushed out to some extent and hence all the indices values were lower in this season compared to that of the dry season. I geo results revealed that the study area was strongly and moderately contaminated with As and Hg in the dry and wet seasons respectively. According to C , soil was classified as moderately contaminated with Zn, Cr, Pb and Ni, considerably contaminated with Cu and highly OPEN ACCESSAppl. Sci. 2012, 2 585 contaminated with As and Hg. The general trend of the mean C was Hg > As > Cu > Zn > Ni > Cr > Pb > Fe > Mn > Cd and As > Hg > Cu > Cd > Zn > Ni >Pb > Fe > Mn in dry and wet seasons, respectively. The mC f values in the dry and wet seasons were 575.13 and 244.44 respectively indicating an ultra high degree of contamination. The C d values in both seasons were associated with a very high degree of contamination. PLI results indicated immediate intervention to ameliorate pollution in both seasons. The main sources of metals included effluents from wastewater treatment plants, treated and untreated wastewater from surrounding industrial establishments as well as agricultural activities. Protecting the agricultural soil is a formidable challenge in the study area, which requires modernization of industries, thereby improving the recovery and recycling of wastewater. Indices analysis presented in the present work could serve as a landmark for contemporary research in toxicology.

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Section: Seasonal and Spatial Variation Of Heavy Metal Contentmentioning

confidence: 99%

Section: Seasonal and Spatial Variation Of Heavy Metal Contentmentioning

confidence: 99%

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Assessment of Heavy Metal Contamination of Agricultural Soil around Dhaka Export Processing Zone (DEPZ), Bangladesh: Implication of Seasonal Variation and Indices

et al. 2012

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“…Both Cu and Zn are very mobile and may have been dispersed by run off and accumulated in the sediments (Eze & Chukwu, 2011). From similar work carried out by Lin et al, 2012 andMondol et al, 2011, the high lead concentration in rainy season was attributed to the fact that it was transported in clastic/suspended particles which tend not to enter streams/lakes due to its affinity for sediments; complexation and aggregation with clays, organic matter and chemical fertilizer application. In similar studies by Lin et al, 2012 andMondol et al, 2011, the higher concentration of lead in rainy season was attributed to high percentage of lead in the air which mixed up with rainwater and finally reached the sediments through precipitation.…”

Section: Discussionmentioning

confidence: 97%

Integrated Characterization of Toxicity Distribution of Selected Heavy Metals in Stream Sediments Around Itakpe Iron Ore Mines, North Central Nigeria

Ameh

Idakwo

Ameh³

et al. 2016

ESR

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The results of the analysis were subjected to five (5) indices: contamination factor (CF); Ecological risk factor (Er i ); Enrichment factor (EF); index of geo-accumulation (Igeo) and anthropogenic factor (AF). The CF results showed that the River PomPom dry and wet season sediments were collected in February and July respectively from 0cm to 10cm depth. Stainless steel spoon was used to collect the samples. The sediment samples were packaged, labeled and refrigerated for onward transportation to the laboratory. All samples were oven-dried (50 o C) for about 24 hours, sieved through -80 mesh. About 1.0g of each sample was digested, filtered and the filtrates were ready for heavy metal analysis using Atomic sediments were most contaminated with Fe in both seasons, least contaminated with Cd at dry season and Zn in wet season. The Er i factor revealed pollution hazard level of middle during wet season and tiny in dry season. Pb and Ni showed strong and middle hazard level during wet season and Cu revealed middle level during dry season. The enrichment factor indicated extremely enriched for Fe in all locations in both seasons while most heavy metals showed depletion to minimal enrichment. The Igeo for both seasons showed that Fe was moderately to highly polluted in all locations. During dry season, other heavy metals showed moderately to unpolluted while in wet season Cd, Ni and Pb indicated moderately to very highly polluted. In both seasons, the % AF was very high for Fe, Cu, Pb. The AF% was very high for Ni and Cd in wet season. All sites in both seasons have experienced deterioration but more in the wet season. From these indices, the stream sediments have been significantly contaminated with Fe, Ni, Pb and Ni in most locations in both seasons.

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“…That revealed concentrations of heavy metals (As, Cr, Cu, Mn, Ni and Zn) in the sediments of the Nhue River were higher in the dry season than in the rainy season. A study by Mondol et al (2011) on seasonal variation of heavy metals concentrations in water and plant samples around Tejgaon industrial area of Bangladesh showed that in the rainy season the pollution was lower because heavy rainfall were flushed out through the canal into the adjoining vast flood zone. As the rainy season receded the soils and water were enriched with the pollution load (Chamon et al, 2009;Ullah et al, 1999).…”

Section: Discussionmentioning

confidence: 99%

Accumulation of heavy metals on bed sediments of Nairobi dam, Kenya

Ndeda¹,

Manohar²,

Macharia³

2017

J. Environ. Chem. Ecotoxicol.

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Seasonal Variation of Heavy Metal Concentrations in Water and Plant Samples Around Tejgaon Industrial Area of Bangladesh

Cited by 43 publications

References 12 publications

Assessment of Heavy Metal Contamination of Agricultural Soil around Dhaka Export Processing Zone (DEPZ), Bangladesh: Implication of Seasonal Variation and Indices

Assessment of Heavy Metal Contamination of Agricultural Soil around Dhaka Export Processing Zone (DEPZ), Bangladesh: Implication of Seasonal Variation and Indices

Integrated Characterization of Toxicity Distribution of Selected Heavy Metals in Stream Sediments Around Itakpe Iron Ore Mines, North Central Nigeria

Accumulation of heavy metals on bed sediments of Nairobi dam, Kenya

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