Environmental contamination of Zn, Cd, Ni, Cu, and Pb from industrial areas in Hamadan Province, western Iran

Jalali, Mohsen; Khanlari, Zahra Varasteh

doi:10.1007/s00254-007-1103-1

Cited by 46 publications

(28 citation statements)

References 17 publications

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“…The presence of Cu in organic matter agrees with many studies (Du et al, 2008;Jalali and Khanlari, 2008) that have shown that Cu has high affinity for organic matter. Oxidation of organic matter, which is typical of arid and semi-arid environments, can make Cu more potentially available.…”

Section: Heavy Metals In Geochemical Fractionssupporting

confidence: 78%

“…Some studies have reported high concentrations of Cu associated with organic matter in sediments (Galán et al, 2003;Du et al, 2008;Jalali and Khanlari, 2008). This confirmed the high affinity of Cu to organic matter, and it could, in fact, easily form complexes with organic matter due to the high stability constant of organicCu compounds (Li et al, 2001; Xiangdong et al, 2001).…”

Section: Heavy Metals In Geochemical Fractionsmentioning

confidence: 63%

“…In the June sampling, the highest values of Mn (32.5 mg kg À 1 ) were at Gate Station, and Zn (4.0 mg kg À 1 ) in Zone II (San Miguel River) and V (industrial area), representing rates of 3.69, 2.25 and 2.09%, respectively, compared to the total. The exchangeable fraction is considered readily mobile and bioavailable (Jalali and Khanlari, 2008). Thus, the mobile and bioavailable fractions of Cu, Fe, Mn and Zn respectively, probably decline in the following order: Mn4Fe4Zn4Cu.…”

Section: Heavy Metals In Geochemical Fractionsmentioning

confidence: 99%

“…Oxidation of organic matter, which is typical of arid and semi-arid environments, can make Cu more potentially available. Thus, mobility and bioavailability of Cu may be controlled by the binding of Cu to soluble organic matter studies (Jalali and Khanlari, 2008).…”

Section: Heavy Metals In Geochemical Fractionsmentioning

confidence: 99%

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Distribution of heavy metals and their chemical speciation in sediments from the Abelardo L. Rodríguez Dam, Sonora, México

Gómez-Álvarez

Valenzuela-García

Villalba-Atondob

et al. 2011

Chemical Speciation & Bioavailability

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The purpose of this study was to investigate the distribution of total and bioavailable metals (Cd, Cu, Cr, Fe, Mn, Pb and Zn) in sediments of the Abelardo L. Rodríguez (ALR) dam located in the eastern part of the city of Hermosillo, Sonora, Mexico. Seventy two sediment samples were collected in 2009 during four sampling campaigns in February (spring), May (summer), September (end of summer) and December (winter) in five different areas within the dam surface (Zones I, II, III, IV and V), including the Gate Station. Determination of heavy metals was carried out by flame atomic absorption spectrophotometry (FAAS). The results indicate high levels of total heavy metals in the following order: Fe4Mn4Zn4Pb4Cu4Cr4Cd. This is indicative of the impact of human activities located in areas surrounding the reservoir, specifically urban and industrial. The distribution and state of accumulation of trace metals in the sediment is largely dominated by the residual and FeyMn oxides geochemical phases. Fraction I (exchangeable) also presented high concentrations of metals (Cu, Fe, Mn and Zn). From enrichment factor analysis, the study area is prevalently enriched in Cd, Cu and Pb in Zones I, II, III, IV and Gate Station. This indicates that the sediments are impacted by anthropogenic activities such as downloads, domestic and industrial wastewater. Geoaccumulation index (Igeo) indicates that Zones I, II, III, IV and V (including Gate Station) do not show contamination by Cr, Fe, Mn and Zn. However, there is a moderate to heavy contamination by Cd, Cu and Pb (Igeo: 2 -4) in all areas of study. The comparison between the results obtained with the sediment quality criteria (LEL and SEL), indicate that Zones I, II, III, IV, V and Gate Station, are contaminated with Cd, Cu and Pb, and severely contaminated by Fe.The elevated levels of heavy metals detected in the sediment of the ALR Dam require special attention, since in the exchangeable fraction, the metals are specifically adsorbed on the sediment and can be released when the ionic composition of water changes. However, additional studies are required in this reservoir on the chemistry and toxicology of metals for a full assessment of potential risks posed to biota and man.

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Section: Heavy Metals In Geochemical Fractionssupporting

confidence: 78%

Section: Heavy Metals In Geochemical Fractionsmentioning

confidence: 63%

Section: Heavy Metals In Geochemical Fractionsmentioning

confidence: 99%

Section: Heavy Metals In Geochemical Fractionsmentioning

confidence: 99%

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Distribution of heavy metals and their chemical speciation in sediments from the Abelardo L. Rodríguez Dam, Sonora, México

Gómez-Álvarez

Valenzuela-García

Villalba-Atondob

et al. 2011

Chemical Speciation & Bioavailability

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“…특히 토 양오염은 토양 내에 특정 화학물질의 농도가 높아져 사람의 건강이나 생태계에 피해를 주는 상태를 말하며, 물이나 공기 와 같은 이동성이 없기 때문에 오염물질이 토양에 흡수되면 쉽게 노출되지 않고 흡착되어 장기간에 걸쳐 토양에 잔류하는 것으로 알려져 있다 (Ha et al, 2004) (Lee and Hoh, 2003;Lee et al, 2005). 또한 휴 ․ 폐광산, 금속가공 및 도금업체가 입주한 공 단, 중화학공업단지 및 유독물 업소 등에서 배출되는 매연, 분진, 도시하수, 공장폐수 및 각종 폐기물 등 다양한 경로를 통해 토양 중으로 오염물질이 배출되고 있으며, 특히 산업단 지에서는 타 지역에 비하여 상당히 많은 양의 오염물질들이 배출되고 있을 뿐만 아니라 원료나 제품수송을 담당하는 운 송수단 등에서도 많은 양의 오염물질들이 배출되어 토양으로 의 오염을 가중시키는 것으로 알려져 있다 (Lee, 2005;Jalali and Khanlari, 2008 …”

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Soil Contamination of Heavy Metals in National Industrial Complexes, Korea

Jeong¹,

Cho²,

Jeong³

et al. 2015

Korean Journal of Environmental Agriculture

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Redistribution of cadmium, copper, lead, nickel, and zinc among soil fractions in a contaminated calcareous soil after application of nitrogen fertilizers

Jalali

Moharami

2010

Z. Pflanzenernähr. Bodenk.

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This study was conducted to evaluate the redistribution of the heavy metals Cd, Cu, Pb, Ni, and Zn among different soil fractions by N fertilizers. In a lab experiment, soil columns were leached with distilled water, KNO3, NaNO3, NH4NO3, or Ca(NO3)2 · 4H2O. After leaching, soil samples were sequentially extracted for exchangeable (EXCH), carbonate (CARB), organic‐matter (OM), Mn oxide (MNO), Fe oxide (FEO), and residual (RES) fractions. Distilled water significantly increased the concentrations of Cd and Ni in EXCH fraction, while concentration of Cu and Zn did not change significantly. Application of KNO3, NaNO3, NH4NO3, or Ca(NO3)2 · 4H2O significantly increased the concentrations of Cd and Zn in EXCH fraction, while concentration of Pb and Ni was decreased. Application of all fertilizers caused an increase of Cu in the OM fraction. Moreover, leaching with these solutions significantly increased Cd [except in Ca(NO3)2 · 4H2O], Cu, and Zn concentrations in the CARB fraction, while Pb and Ni concentrations were decreased. With application of all leaching solutions, Zn in the EXCH, CARB, FEO, and MNO fractions was significantly increased, while Zn in the OM fraction did not change. The mobility index indicated that Ca(NO3)2 · 4H2O increased the mobility of Cd, Cu, and Zn in the soil, whereas NaNO3 decreased the mobility of Pb and Ni in the soil. The mobility index of Pb decreased by all leaching solutions. Thus, these results suggest that applying N fertilizers may change heavy‐metal fractions in contaminated calcareous soil and possibly enhance metal mobility and that N‐fertilization management therefore may need modification.

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Environmental contamination of Zn, Cd, Ni, Cu, and Pb from industrial areas in Hamadan Province, western Iran

Cited by 46 publications

References 17 publications

Distribution of heavy metals and their chemical speciation in sediments from the Abelardo L. Rodríguez Dam, Sonora, México

Distribution of heavy metals and their chemical speciation in sediments from the Abelardo L. Rodríguez Dam, Sonora, México

Soil Contamination of Heavy Metals in National Industrial Complexes, Korea

Redistribution of cadmium, copper, lead, nickel, and zinc among soil fractions in a contaminated calcareous soil after application of nitrogen fertilizers

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