Assessment of Heavy Metal Contamination in Marine Sediments of East Coast of Tamil Nadu Affected by Different Pollution Sources

Harikrishnan, N.; Ravisankar, R.; Chandrasekaran, A.; Gandhi, M. Suresh; Kanagasabapathy, K.; Prasad, M. V. R.; Satapathy, K. K.

doi:10.1016/j.marpolbul.2017.05.047

Cited by 61 publications

(16 citation statements)

References 16 publications

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“…Element of U did not show a significant positive correlation with other elements, which could indicate that uranium was derived from lithogenic sources (Harikrishnan et al, 2017).…”

Section: Trace Elements Correlationmentioning

confidence: 86%

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Geochemical characteristics of the trace elements and heavy metals in the sequences in Gachsaran Formation, West of Iran

Sakhavati¹,

Yousefirad²,

Yaghotipoor³

2020

Preprint

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In the present study, the geochemical characteristics of sequences of the Gachsaran Formation, located in the west of Kermanshah province, Iran - Iraq border zones, were studied. In order to determine the concentration of the elements, the XRF and ICP-mass techniques were employed, and the XRD technique was used to identify the mineralogical composition and finally, the evaluation of the level of pollution caused by these elements were carried out using statistical and pollution index software.The results illuminated that the concentrations of CaO, MgO, TiO2, and concentrations of two elements, i.e., Cd and Sb were higher than their mean values in the earth’s crust. Based on the CF pollution index, the elements of Cd and Sb with the values of 1.52 and 2 show the moderate contamination. Enrichment factor (EF) revealed moderate contamination for Cs (2.46), Ga (3.86), Rb (2) and Ti (2.35). This index showed the high pollution and anthropogenic origin for Ti (8), Cd (10.41), U (11.26) and Sb (13.43). The results of the correlation between the elements indicated the presence of positive and significant correlation between Cs, Hf, La, Nb, Nd, Rb, Sc, Sm, Ta, Tb, Th, Tl, W, Y, Yb, and Zr. There was no positive and significant correlation between U and none of the elements. Three elements of Sb, U, and Cd showed a negative correlation with most of the studied elements. According to the results of cluster analysis, three separate groups were obtained so that each of Ti and Fe was classified as separate groups and Fe showed the highest difference in comparison with other elements. Based on the results of the Principal Component Analysis (PCA), the highest effect was related to the elements of Cs, Hf, La, Nb, Rb, Sc, Sm, Tb, Th, Tl, W, Y, Yb, Zr, Fe in the first Component, Sb, Cd in second component and U in the third component.

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“…Element of U did not show a significant positive correlation with other elements, which could indicate that uranium was derived from lithogenic sources (Harikrishnan et al, 2017).…”

Section: Trace Elements Correlationmentioning

confidence: 86%

“…The three elements Sb, U and Cd showed a negative correlation with most of the elements that may indicate different origins of these three elements (Harikrishnan et al, 2017).…”

Section: Trace Elements Correlationmentioning

confidence: 94%

Geochemical characteristics of the trace elements and heavy metals in the sequences in Gachsaran Formation, West of Iran

Sakhavati¹,

Yousefirad²,

Yaghotipoor³

2020

Preprint

View full text Add to dashboard Cite

show abstract

“…Then the homogenized sample was passed through a 63-micron sieve. This method was performed because heavy metals are often associated with small grains [12], One gram of dry sediment was weighed and digested in PTFE tubes using a mixture of 7 ml HNO 3 , 5 ml HClO 4 and 2 ml HF at 200 ° C for 8 hours. After cooling, the samples were filtered through Whatman 42 μm filter paper and finally diluted and then adjusted to 25 cc volume using distilled water.…”

Section: Procedures For Determination Of Heavy Metalsmentioning

confidence: 99%

Determination and investigation of heavy metal concentrations in sediments of the Persian Gulf coasts and evaluation of their potential environmental risk

Allami

Afzali

Mirzaei

2020

Anal. Method Environ. Chem. J.

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The contamination of coastal sediments with toxic heavy metals caused to a serious concern due to their environmental consequences. The aim of this study was to determine the concentration of heavy metals such as lead (Pb), copper (Cu), nickel(Ni) and manganese (Mn) in the sediments of the Persian Gulf coast in Kangan and Siraf ports in Bushehr province. In this regard, the sampling was performed in 10 stations with different uses in two depths of 0-5 and 5-20 cm along the coast of the Persian Gulf. The concentration of heavy metals was measured after drying, acid digestion and microwave by using flame atomic absorption spectrometry (F-AAS). The results showed that the average concentrations of Mn(II), Ni(II), Cu(II) and Pb(II) was measured 121.47, 11.51, 11.59 and 5.30 in surface sediments, and 131.59, 10.81, 12.56 and 4.88 µg g-1 in deep sediments. All analysis validated by electrothermal atomic absorption spectrometry (ET-AAS).

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“…Many previous studies tended to reveal the heavy metals pollution conditions and evaluate their ecological risks in selected study areas, especially in coastal areas since they threaten the security of terrestrial and marine ecosystems (Harikrishnan et al 2017). The heavy metals pollution in the Beijing-Tianjin-Hebei region, Yangtze River Delta region, and Pearl River Delta region, which are the three regions at the forefront of China's economic development, has received extensive attention from researchers (Yang et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Ecological risk assessment of soil cadmium in China’s coastal economic development zone: a meta-analysis

Sun

Wang

et al. 2020

Ecosyst Health Sustain

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The coastal area of China has faced major strategic planning and environmental pollution, including heavy metals pollution. This study aimed to provide a comprehensive evaluation of the effects of Cd pollution on the ecology in coastal areas of China. A soil Cd pollution database of 300 counties or districts in coastal areas was screened from academic dissertations and academic journal papers. Based on the database, the ecological risk was evaluated using entropy methods and probabilistic ecological risk assessment (PERA), and the advantages and disadvantages of these methods were analyzed. In China's coastal areas, the soil Cd content in 10.33% of the counties was higher than the minimum of risk control value (1.5 mg/kg), and in 4.00% of the counties was higher than the maximum of risk control value (4.0 mg/kg). The ecological risks were highly compatible with national strategic planning areas. Guangxi Province, Zhejiang Province, and Guangdong Province ranked among the top three coastal areas for soil Cd contamination, and the ecological risks were 18.80%, 17.89%, and 15.77% at the maximum no-effect concentration/lowest effect concentration (NOEC/LOEC) level. This study can provide insights to policymakers regarding the protection of ecosystems threatened by heavy metals in the process of regional strategic planning.

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Assessment of Heavy Metal Contamination in Marine Sediments of East Coast of Tamil Nadu Affected by Different Pollution Sources

Cited by 61 publications

References 16 publications

Geochemical characteristics of the trace elements and heavy metals in the sequences in Gachsaran Formation, West of Iran

Geochemical characteristics of the trace elements and heavy metals in the sequences in Gachsaran Formation, West of Iran

Determination and investigation of heavy metal concentrations in sediments of the Persian Gulf coasts and evaluation of their potential environmental risk

Ecological risk assessment of soil cadmium in China’s coastal economic development zone: a meta-analysis

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