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El-Taher A, Kamel M, Tolba A, Salaheldin G. Evaluation of natural radioactivity and radiological hazards in basement rocks from Gabel Abu El-Hassan in the North Eastern Desert of Egypt by multivariate statistical approach with remote sensing data. RADIATION DETECTION TECHNOLOGY AND METHODS 2020. [DOI: 10.1007/s41605-020-00213-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Kulal C, Padhi RK, Venkatraj K, Satpathy KK, Mallaya SH. Study on Trace Elements Concentration in Medicinal Plants Using EDXRF Technique. Biol Trace Elem Res 2020; 198:293-302. [PMID: 31919788 DOI: 10.1007/s12011-020-02037-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Accepted: 01/07/2020] [Indexed: 11/25/2022]
Abstract
Ten medicinal plants used as ingredients of folklore and Ayurvedic medicine belonging to the Malnad Kerala region of South India, were analysed for concentrations of trace elements Fe, Cr, Mn, Co, Ni, Cu, Zn, As, and Pb using the Energy Dispersive X-ray Fluorescence (EDXRF) technique. The soil from the root area of these medicinal plants was also analysed, and the soil to plant transfer factor (TF) of the elements was estimated. Iron (Fe) recorded higher concentration than the other trace elements estimated in the medicinal plants, followed by manganese (Mn) and zinc (Zn). The mean TF was found to be highest for Zn. Plectranthus amboinicus (Lour.) Spreng recorded the maximum value of TF for Zn. Most of the essential elements were found to be present in Centella asiatica (L.) Urban and indicated its medicinal importance. The data obtained in the present investigation may add up to the trace elemental database of medicinal plants in the world.
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Affiliation(s)
| | - Ranjib Kumar Padhi
- Environment and Safety Division, Indira Gandhi Centre for Atomic Research, 603 102, Kalpakkam, India
| | - Kanagasabapathy Venkatraj
- Environment and Safety Division, Indira Gandhi Centre for Atomic Research, 603 102, Kalpakkam, India
| | - Kamala Kantha Satpathy
- Environment and Safety Division, Indira Gandhi Centre for Atomic Research, 603 102, Kalpakkam, India
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Almugren K, Sani SA, Wandira R, Wahib N, Rozaila ZS, Khandaker M, Bradley D. Thermoluminescence response of X-ray irradiated commercial chalk. Appl Radiat Isot 2019; 151:102-110. [DOI: 10.1016/j.apradiso.2019.04.027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 04/07/2019] [Accepted: 04/22/2019] [Indexed: 10/26/2022]
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Bernardini F, Vecchiet A, De Min A, Lenaz D, Mendoza Cuevas A, Gianoncelli A, Dreossi D, Tuniz C, Montagnari Kokelj M. Neolithic pottery from the Trieste Karst (northeastern Italy): A multi-analytical study. Microchem J 2016. [DOI: 10.1016/j.microc.2015.09.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Chandrasekaran A, Ravisankar R. Spatial distribution of physico-chemical properties and function of heavy metals in soils of Yelagiri hills, Tamilnadu by energy dispersive X-ray florescence spectroscopy (EDXRF) with statistical approach. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 150:586-601. [PMID: 26079515 DOI: 10.1016/j.saa.2015.05.083] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Revised: 05/01/2015] [Accepted: 05/21/2015] [Indexed: 06/04/2023]
Abstract
Soil physico-chemical properties were thought to be important factors in obscuring clear identification of pollutant sources. In the present study physicochemical properties such as, pH, electrical conductivity, bulk density, porosity density, soil texture and color were determined to identify the pollution status using different conventional analytical methods in soils of Yelagiri Hills, Tamilnadu. Soil pH ranges from 5.39 to 8.43 which indicate that the soils are acidic to alkaline in nature. The concentrations of selected heavy metals were determined using energy dispersive X-ray florescence spectroscopy (EDXRF) technique. In all the locations Al is the most abundant metal and Co is the least amount in soil. The relationship between the physico-chemical properties and heavy metals were studied by Pearson correlation. The statistical technique shows that strong significant correlation among the heavy metals. The Chemometric approaches namely: principal component analyses (PCA), hierarchical cluster analysis (HCA), were used for identify the soil pollutant. Spatial distribution of physico-chemical properties of soil such as pH, soil texture (sand, silt, clay) electrical conductivity was studied by geo-statistical methods such as kriging identified areas. The heavy metal mapping also attempted to know the distribution pattern in soils.
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Affiliation(s)
- A Chandrasekaran
- Department of Physics, SSN College of Engineering, Kalavakkam, Chennai 603110, Tamil Nadu, India
| | - R Ravisankar
- Post Graduate and Research Department of Physics, Government Arts College, Thiruvannamalai 606603, Tamil Nadu, India.
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Ravisankar R, Chandramohan J, Chandrasekaran A, Prince Prakash Jebakumar J, Vijayalakshmi I, Vijayagopal P, Venkatraman B. Assessments of radioactivity concentration of natural radionuclides and radiological hazard indices in sediment samples from the East coast of Tamilnadu, India with statistical approach. MARINE POLLUTION BULLETIN 2015; 97:419-430. [PMID: 26036177 DOI: 10.1016/j.marpolbul.2015.05.058] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Revised: 05/15/2015] [Accepted: 05/21/2015] [Indexed: 05/14/2023]
Abstract
This paper reports on the distribution of three natural radionuclides (238)U, (232)Th and (40)K in coastal sediments from Pattipulam to Devanampattinam along the East coast of Tamilnadu to establish baseline data for future environmental monitoring. Sediment samples were collected by a Peterson grab samples from 10m water depth parallel to the shore line. Concentration of natural radionuclides were determined using a NaI(Tl) detector based γ-spectrometry. The mean activity concentration is ⩽2.21, 14.29 and 360.23Bqkg(-1) for (238)U, (232)Th and (40)K, respectively. The average activity of (232)Th, (238)U and (40)K is lower when compared to the world average value. Radiological hazard parameters were estimated based on the activity concentrations of (238)U, (232)Th and (40)K to find out any radiation hazard associated with the sediments. The radiological hazard parameters such as radium equivalent activity (Raeq), absorbed gamma dose rates in air (DR), the annual gonadal dose equivalent (AGDE), annual effective dose equivalent (AEDE), external hazard index (Hex) internal hazard index (Hin), activity utilization index (AUI) and excess lifetime cancer (ELCR) associated with the radionuclides were calculated and compared with internationally approved values and the recommended safety limits. Pearson correlation, principal component analysis (PCA) and hierarchical cluster analysis (HCA) have been applied in order to recognize and classify radiological parameters in sediments collected at 22 sites on East coast of Tamilnadu. The values of radiation hazard parameters were comparable to the world averages and below the recommended values. Therefore, coastal sediments do not to pose any significant radiological health risk to the people living in nearby areas along East coast of Tamilnadu. The data obtained in this study will serve as a baseline data in natural radionuclide concentration in sediments along the coastal East coast of Tamilnadu.
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Affiliation(s)
- R Ravisankar
- PG & Research Department of Physics, Government Arts College, Thiruvannamalai 606603, Tamil Nadu, India.
| | - J Chandramohan
- Department of Physics, E.G.S. Pillay Engineering College, Nagapattinam 611002, Tamil Nadu, India
| | - A Chandrasekaran
- Department of Physics, SSN College of Engineering, Kalavakkam, Chennai 603110, Tamil Nadu, India
| | - J Prince Prakash Jebakumar
- Coastal and Environmental Engineering, National Institute of Ocean Technology, Pallikaranai, Chennai 600100, Tamil Nadu, India
| | - I Vijayalakshmi
- Radiological Safety Division, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, Tamil Nadu, India
| | - P Vijayagopal
- Radiological Safety Division, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, Tamil Nadu, India
| | - B Venkatraman
- Radiological Safety Division, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, Tamil Nadu, India
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Chandrasekaran A, Ravisankar R, Harikrishnan N, Satapathy KK, Prasad MVR, Kanagasabapathy KV. Multivariate statistical analysis of heavy metal concentration in soils of Yelagiri Hills, Tamilnadu, India--spectroscopical approach. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 137:589-600. [PMID: 25240831 DOI: 10.1016/j.saa.2014.08.093] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Revised: 08/06/2014] [Accepted: 08/24/2014] [Indexed: 06/03/2023]
Abstract
Anthropogenic activities increase the accumulation of heavy metals in the soil environment. Soil pollution significantly reduces environmental quality and affects the human health. In the present study soil samples were collected at different locations of Yelagiri Hills, Tamilnadu, India for heavy metal analysis. The samples were analyzed for twelve selected heavy metals (Mg, Al, K, Ca, Ti, Fe, V, Cr, Mn, Co, Ni and Zn) using energy dispersive X-ray fluorescence (EDXRF) spectroscopy. Heavy metals concentration in soil were investigated using enrichment factor (EF), geo-accumulation index (Igeo), contamination factor (CF) and pollution load index (PLI) to determine metal accumulation, distribution and its pollution status. Heavy metal toxicity risk was assessed using soil quality guidelines (SQGs) given by target and intervention values of Dutch soil standards. The concentration of Ni, Co, Zn, Cr, Mn, Fe, Ti, K, Al, Mg were mainly controlled by natural sources. Multivariate statistical methods such as correlation matrix, principal component analysis and cluster analysis were applied for the identification of heavy metal sources (anthropogenic/natural origin). Geo-statistical methods such as kirging identified hot spots of metal contamination in road areas influenced mainly by presence of natural rocks.
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Affiliation(s)
- A Chandrasekaran
- Department of Physics, Vel Tech (Owned by RS Trust), Chennai 600062, Tamil Nadu, India
| | - R Ravisankar
- Post Graduate and Research Department of Physics, Government Arts College, Thiruvanamalai 606603, Tamil Nadu, India.
| | - N Harikrishnan
- Post Graduate and Research Department of Physics, Government Arts College, Thiruvanamalai 606603, Tamil Nadu, India
| | - K K Satapathy
- EnSD, RSEG, Indira Gandhi Centre for Atomic Research (IGCAR), Kalpakkam, Tamil Nadu, India
| | - M V R Prasad
- EnSD, RSEG, Indira Gandhi Centre for Atomic Research (IGCAR), Kalpakkam, Tamil Nadu, India
| | - K V Kanagasabapathy
- EnSD, RSEG, Indira Gandhi Centre for Atomic Research (IGCAR), Kalpakkam, Tamil Nadu, India
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