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- B. S. Balakumar
- S. Kumaresan
- V. Sivasubramanian
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Venugopal, R.
- Clastogenic Effect of Sodium Arsenite in Experimental Rats and Ameliorative Effects of Antioxidant Vitamins C and E
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Authors
Affiliations
1 Department of Plant Biology & Plant Biotechnology, RKM. Vivekananda College, Mylapore, Chennai -600 004, IN
2 Research Institute of Veterinary Medicine, Chungbuk National University, South korea
1 Department of Plant Biology & Plant Biotechnology, RKM. Vivekananda College, Mylapore, Chennai -600 004, IN
2 Research Institute of Veterinary Medicine, Chungbuk National University, South korea
Source
Indian Journal of Science and Technology, Vol 3, No 6 (2010), Pagination: 642-647Abstract
Arsenic, an element ubiquitous in the environment, causes serious health problems in humans. The general population is more exposed to arsenic through drinking water than through air and food. Sodium arsenite, capable of inducing genotoxic effects through oxidative stress, is evaluated for its clastogenic effect by the formation of chromosomal aberrations in the bone marrow cells of Wistar rats. We also investigated whether the oral supplementation of α- tocopherol (400 mg/kg body weight) and ascorbic acid (200 mg/kg body weight) to arsenic-intoxicated rats (100 ppm in drinking water) for 30days, ameliorates arsenic-induced toxicity. We report that the dietary supplementation of antioxidants such as vitamins C and E could prevent sodium arsenite induced toxicity in rats under experimental conditions.Keywords
Arsenic, Genotoxicity, Ascorbic Acid, α-tocopherol, Chromosomal Aberrations, Vitamins, Rat, Bone MarrowReferences
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- Characterization of the Beach Rock, Underlying Placer Mineral-Sand Deposit, Visakhapatnam Coast, Andhra Pradesh
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Authors
Affiliations
1 Department of Geology, Andhra University, Visakhapatnam - 530 003, IN
1 Department of Geology, Andhra University, Visakhapatnam - 530 003, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 70, No 6 (2007), Pagination: 975-980Abstract
The so-called beach rock along the Visakhapatnam coast is exposed where the overlying placer deposit (sand dunes and red sediments) is eroded or removed. The morphology of samples reveals a well preserved density stratification, layering, grain size variation and alternate layering of light and heavy mineral fractions Textural characteristics confirm their derivation from beach environment. The mineral composition is similar to the present day beach sands and includes quartz, sillimanite, ilmenite and other opaques, monazite and zircon, with conspicuous absence of garnet X-ray diffraction analysis of the cementing matenal revealed the presence of siderite and himonite Study of polished beach rock specimens under the reflected light revealed exsolution features in ilmenite grains, similar to present day ilmenite Carbonate cementing matenal is replaced by secondary iron oxide. The associated flat pebbles are of quartzite and khondalite. The in situ occurrence of the beach rock along this part of the coast forms the physical evidence supportmg the coastal submergence during the Holocene transgression. The formation of beach rock is resultant of a combined marine and groundwater activity m the intertidal zone.Keywords
Beach Rock, Holocene Transgression, Inter Tidal Zone, Placer Sand, Visakhapatnam Coast, Andhra Pradesh.- Application of ICP-MS Technique for Analysis of Heavy Metals in LD Slag Fines
Abstract Views :238 |
PDF Views:72
Authors
Affiliations
1 Tata Steel Limited, Jamshedpur - 831007, IN
2 FME Department, and Department of Applied Chemistry, Indian Institute of Technology (Indian School of Mines), Dhanbad - 826004, IN
3 Department of Applied Chemistry, Indian Institute of Technology (Indian School of Mines), Dhanbad - 826004, IN
1 Tata Steel Limited, Jamshedpur - 831007, IN
2 FME Department, and Department of Applied Chemistry, Indian Institute of Technology (Indian School of Mines), Dhanbad - 826004, IN
3 Department of Applied Chemistry, Indian Institute of Technology (Indian School of Mines), Dhanbad - 826004, IN
Source
Current Science, Vol 115, No 5 (2018), Pagination: 973-977Abstract
Inductively coupled plasma-mass spectrometry (ICPMS) is a powerful tool for analysing trace metals in environmental samples, industrial wastes and samples of biogenic nature. In the present study, this technique has been used to analyse the content of heavy metals in trace levels which specifically include elements like lead, cadmium, selenium and arsenic in LD slag fines. LD slag is the waste generated during the Linz– Donawitz steel making process or the basic oxygen furnace process. LD slag fines in the size range 0–6 mm are obtained after the recovery of metallic iron by means of physical separation in waste recycling plants, and are mostly recycled in sinter-making process. The non-metallic portion of LD slag fines is generally used as an aggregate in road construction, in acid mine drainage treatment and as an acidic soil conditioner. All these applications require a thorough analysis of trace and heavy metals as they can leach and penetrate into the soil and potentially contaminate it. The present study addresses this issue by analysing heavy metals in traces levels using ICP-MS. The analysis reveals that most of the heavy and hazardous elements are present in very low concentrations in the slag itself when compared with the EPA maximum allowed concentration in the leachate samples. However, the concentration of mercury in LD slag is more than the limit set by EPA in the leachate, and leachability of mercury needs to be studied further. The study also reveals that there are traces of platinum and palladium in the slag, indicating the requirement of future studies to understand their economic recovery.Keywords
Heavy Metals, LD Slag, Mass Spectrometry, Fires, Steel Making.References
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- Potential Application of Yellow Gypsum From LD Slag as a Soil Conditioner
Abstract Views :214 |
PDF Views:86
Authors
Affiliations
1 R&D Department, Tata Steel Limited, Jamshedpur 831 007, IN
2 Department of Fuel, Minerals and Metallurgical Engineering, Dhanbad 826 004, IN
3 Applied Chemistry Department, Indian Institute of Technology (Indian School of Mines), Dhanbad 826 004, IN
1 R&D Department, Tata Steel Limited, Jamshedpur 831 007, IN
2 Department of Fuel, Minerals and Metallurgical Engineering, Dhanbad 826 004, IN
3 Applied Chemistry Department, Indian Institute of Technology (Indian School of Mines), Dhanbad 826 004, IN
Source
Current Science, Vol 118, No 1 (2020), Pagination: 118-122Abstract
In the present study, ICP-AES and ICP-MS techniques were used to analyse and validate the content of heavy and trace elements in yellow gypsum samples produced by a chemical process from a solid waste generated at an integrated steel plant. The present study tries to demonstrate that the content of heavy metals like lead, mercury and arsenic in yellow gypsum is less than the toxicity characteristic leaching procedure (TCLP) norms set for a comparable industrial by-product phospho-gypsum. This study also concludes that yellow gypsum contains some elements (copper, boron, etc.) in traces, apart from heavy metals which are beneficial to plants as micronutrients.Keywords
Heavy Metals, IICP-MS, ICP-AES, Trace Elements, Yellow Gypsum.References
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Authors
Affiliations
1 Department of Fuel & Mineral Engineering, Indian Institute of Technology (ISM) Dhanbad 826 004, IN
2 Department of Mining Engineering, Indian Institute of Technology (ISM) Dhanbad 826 004, IN
1 Department of Fuel & Mineral Engineering, Indian Institute of Technology (ISM) Dhanbad 826 004, IN
2 Department of Mining Engineering, Indian Institute of Technology (ISM) Dhanbad 826 004, IN
Source
Journal of Mines, Metals and Fuels, Vol 65, No 6 (2017), Pagination: 362-366Abstract
In this study, characterization is done to understand the occurrence, quantity and quality of the ore and its characteristic to establish its physico-chemical properties and to pave way for its beneficiation for economic use. The results indicated the liberation size for beneficiation to be below 150 micron, contains approx. 58% Fe, 2.53% SiO2 and 4.30% Al2O3 . Different process such as hydro-cyclone, spiral concentrator and WHIMS were employed in series for the beneficiation of iron. The grade was significantly increased from 57.67% Fe in feed to 63.16% Fe in concentrate. Approx. 30% of SiO2 present in feed is also reduced from 2.53% to 1.77% and approx. 50% of Al2O3 present in feed is removed.Keywords
Iron Ore Slime, WHIMS, Spiral Concentrator, Hydro Cyclone.- Kerala Bird Atlas 2015–20: features, outcomes and implications of a citizen-science project
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Authors
J. Praveen
1,
P. O. Nameer
2,
Ashish Jha
3,
Anish Aravind
4,
K. G. Dilip
5,
Dipu Karuthedathu
6,
George Tom
1,
Hari Mavelikara
7,
Harikumar Mannar
8,
Jafer Palot
9,
Jaichand Johnson
10,
R. Jishnu
11,
K. Maxim Rodrigues
12,
P. M. Mujeeb
13,
L. Namassivayan
14,
Naveelal Payyeri
13,
P. P. Nesrudheen
6,
S. Prasanth Narayanan
8,
S. S. Prasanth
6,
M. C. Prashantha Krishna
12,
E. S. Praveen
15,
Praveen Velayudhan
14,
Premchand Reghuvaran
5,
Raju Kidoor
12,
R. L. Rathish
16,
R. Roshnath
17,
C. Sashikumar
9,
Satyan Meppayur
9,
A. K. Sivakumar
10,
A. K. Sreedevi
8,
B. Sreekumar
8,
E. R. Sreekumar
18,
P. B. Sumesh
19,
R. Venugopal
14,
Vinod Venugopal
20,
C. K. Vishnudas
21,
Vishnupriyan Kartha
5,
Vivek Puliyeri
6,
Suhel Quader
22,
Abinand Reddy
22,
Abdul Raheem Puthiyeri
9,
K. Abdul Riyas
9,
R. S. Abhijith
8,
Abhijith Surendran
8,
Abhin M. Sunil
18,
Abhinand Chandran
13,
C. Abhirami
18,
Abhirami M. Jayakumar
18,
Abhishek Sebastian Peter
10,
N. V. Afreed Muhammed
22,
Afthab Faisal Katakath
18,
P. Ajai
8,
Aju K. Raju
7,
P. M. Akhil
14,
U. S. Akhil
16,
U. S. Amal
23,
Anamika Menon
24,
Anas Ibinu Ansari
15,
K. S. Aneesh
10,
S. Aneesh
7,
C. Anjana Hari
18,
R. Anjitha
12,
P. N. Anoop Raj
25,
Anu John
11,
Anuradha Varma
5,
S. S. Anushreedha
10,
C. K. Aravind
9,
Arjun Ramachandran
18,
B. Arun
6,
Arun George
15,
Arun P. Gopi
19,
Arun Varghese
5,
Arya Vinod
14,
Ashley Shaji
10,
V. M. Ashok Raj
6,
Ashwin Viswanathan
22,
Aslam Mohammed
9,
A. Aswin
18,
K. S. Aswin
18,
A. Azhar Ali
18,
P. B. Balaji
26,
M. Bibin Paul
16,
J. Chaithra Shree
26,
Chandrasekaran Venkatraman
1,
K. Charutha
12,
Clareena T. Jose
18,
Clince P. Jose
9,
Dalip Singh
18,
Devika Sanghamithra
18,
Digvijay Singh Sikarwar
5,
Divin Murukesh
6,
V. Divin
1,
Fauzia Arief
5,
Jaydev Mandal
22,
P. J. Sarlin
10,
A. Adil Nafar
6,
K. H. Amitha Bachan
27,
V. Rejitha
7,
R. S. Vishnu Dev
16,
B. Elias Rowther
10,
Firosh Raja
18,
Geetha Iyer
1,
Ginu George
5,
T. U. Gireesan
8,
P. K. Girish Mohan
9,
Glen Preetesh Dsouza
12,
G. Govind
10,
P. Greeshma
15,
P. M. Hari Prasad
8,
T. V. Hariharan
9,
A. Harith
10,
C. Harith
12,
B. Hemanth
10,
Ijaas Mohamed
5,
J. Patrick David
5,
P. K. Jain
22,
P. Jameela
15,
G. Jayakrishnan
8,
K. Jishnu
9,
M. O. Jismi
18,
Jithin Johnson
5,
C. Joel Soniya
10,
Jose Rani Babu
18,
Joseph Roy
10,
Jyothish Nelson
8,
M. Jyothi Krishnan
18,
K. Pranav Bhandary
12,
K. M. Jamaludheen
5,
Kavingal Ravi
14,
Karthik Thrikkadeeri
14,
Kausthubh K. Nair
5,
B. S. Kiran
21,
Kiran S. Kumar
10,
D. Kishore Raj
10,
Kishore Kumar Panaganti
22,
M. Krishna Moorthy
14,
R. Krishna Murthy
1,
M. R. Krishnanunni
18,
Latha Prabhakaran
5,
K. K. Lathika
6,
Libin Abraham
7,
G. Hari Narayanan
8,
Madhumita Panigrahi
28,
S. Manav
14,
Manoj Karingamadathil
15,
T. R. Manoj
26,
Manu Thomas
10,
P. P. Manuel
15,
Mebin George Varghese
8,
P. Megha Chandran
12,
M. Mohammad Sulaiman
14,
Mohammed Ashif Madathil
6,
V. K. Mohammed Hirash
9,
K. Mohammed Ramees
10,
M. Sadique Thirunnavaya
6,
A. P. Muhammed Niyas
10,
C. T. Muhasin
6,
Mukundan Kizhakkemadham
5,
Naseerudheen Abdul Azeez
14,
P. V. Nikhil
10,
C. Niranjana
29,
Nisha Mundekad
30,
Nithin Mohan
10,
A. Pavithra
5,
Poornima Viswanathan
9,
P. Pramod
28,
G. Prakash
26,
S. Prasath
26,
Prasoon Prakash
10,
N. Preethi
14,
Rahul Rajeevan
22,
M. Rajaguru
14,
V. Rajarajan
1,
Raju Sankaran
15,
K. Ratheesh
10,
Rayan Pradeep Crasta
12,
Remya Mohan
14,
Renju
19,
Robin C. Koshy
7,
Rohan Rai
12,
Roshin Tom
22,
Sachin Chandran
9,
M. V. Sachinkrishna
18,
M. V. Saeed Anvar Ali
14,
Sajitha Siril
18,
D. D. Samarth Bharadwaj
22,
Samuel George
22,
Sancia Morris
10,
Sandeep Augustine
5,
Sandeep K. Das
5,
Sandie Morris
10,
P. R. Sandra
15,
T. K. Sanuraj
12,
Saurabh Sawant
1,
Savio Morris
10,
K. Selvaganesh
20,
K. Shahil
22,
N. N. Shahina
18,
Shahul Valasy
9,
P. K. Siji
15,
Siju Joseph
7,
R. Sivashankar
15,
Siyad A. Karim
7,
Sreehari K. Mohan
18,
Sreehari M. Pillai
11,
M. Sri Sowmiya
9,
K. T. Srinila
6,
K. S. Subin
15,
V. G. Sujith
10,
Suryamol Sukumaran
10,
M. S. Syamili
18,
Tarun Menon
14,
Tejas Praveen
1,
S. A. Thilak
5,
Tony Antony
31,
U. R Ullas
32,
Vinod Ooralath Sivaji
7,
Vishnu Narayanan
10,
M. Vishnu Sreejith
9,
A. Vivek Chandran
15,
Vivek Sudhakaran
14,
R. Vridhi
15,
Wahiba Irshad Humam
18,
Yadukrishna J. Uchummal
22,
M. A. Yathumon
9
Affiliations
1 KeralaBirder, Ambadi, Kunnathurmedu, Palakkad 678 013, India, IN
2 College of Climate Change and Environmental Science, Kerala Agricultural University, Thrissur 680 656, India; Department of Wildlife Science, College of Forestry, Kerala Agricultural University, Thrissur 680 656, India, IN
3 College of Climate Change and Environmental Science, Kerala Agricultural University, Thrissur 680 656, India, IN
4 Cochin Natural History Society, Revathi Bhavan, Edathala P. O., Aluva 683 561, India; Kottayam Nature Society, Sri Nilayam, Near Union Club, Kottayam 686 001, India, IN
5 Cochin Natural History Society, Revathi Bhavan, Edathala P. O., Aluva 683 561, India, IN
6 Malappuram Birders, Tirur, Malappuram 676 101, India, IN
7 Pathanamthitta Birders, Pathanamthitta 689 645, India, IN
8 Kottayam Nature Society, Sri Nilayam, Near Union Club, Kottayam 686 001, India, IN
9 Malabar Natural History Society, Susheela Mandir, B.G. Road, Nadakkavu P.O., Kozhikode, 673 011, India, IN
10 WWF-India, CO Madhavan Road, Ayyankali Nagar, Kunnukuzhy, Thiruvananthapuram 695 035, India, IN
11 Kollam Birding Battalion, Kollam 691 010, India, IN
12 Kasaragod Birders, Kasaragod 671 121, India, IN
13 Malabar Natural History Society, Susheela Mandir, B.G. Road, Nadakkavu P.O., Kozhikode, 673 011, India; Calicut Birders Club, Bellevue Dental Muthappan Complex, Patteri, Kozhikode 673 016, India, IN
14 Natural History Society of Palakkad, Palakkad 678 001, India, IN
15 Kole Birders Collective, Thrissur 680 555, India, IN
16 Kerala Veterinary and Animal Sciences University, Pookode, Wayanad 673 576, India, IN
17 Malabar Awareness and Rescue Centre For Wildlife, Chettipedika, Kannur 670 004, India, IN
18 Department of Wildlife Science, College of Forestry, Kerala Agricultural University, Thrissur 680 656, India, IN
19 Birders Ezhupunna, Puthiyaparambil (H), Ezhupunna South P. O, Cherthala. Alappuzha 688 537, India, IN
20 Young Birders Club, Palakkad 678 001, India, IN
21 Hume Centre for Ecology and Wildlife Biology, 4th Cross Rd, Subhash Nagar, Kalpetta, Wayanad 673 121, India, IN
22 Nature Conservation Foundation, 1311, ‘Amritha’, 12th Main, Vijayanagar 1st Stage, Mysuru 570 002, India, IN
23 Kollam Birding Battalion, Kollam 691 010, India; Department of Wildlife Science, College of Forestry, Kerala Agricultural University, Thrissur 680 656, India, IN
24 WWF-India, CO Madhavan Road, Ayyankali Nagar, Kunnukuzhy, Thiruvananthapuram 695 035, India; Department of Wildlife Science, College of Forestry, Kerala Agricultural University, Thrissur 680 656, India, IN
25 Natural History Society of Palakkad, Palakkad 678 001, India; Sálim Ali Centre for Ornithology and Natural History, Anaikatty (Post), Coimbatore 641 108, India, IN
26 Sálim Ali Nature Forum, Coimbatore 641 108, India, IN
27 Western Ghats Hornbill Foundation, Extension Centre, MES Asmabi College, P. Vemballur, Thrissur 680 691, India, IN
28 Sálim Ali Nature Forum, Coimbatore 641 108, India; Sálim Ali Centre for Ornithology and Natural History, Anaikatty (Post), Coimbatore 641 108, India, IN
29 Natural History Society of Palakkad, Palakkad 678 001, India; Department of Wildlife Science, College of Forestry, Kerala Agricultural University, Thrissur 680 656, India, IN
30 Cochin Natural History Society, Revathi Bhavan, Edathala P. O., Aluva 683 561, India; Malappuram Birders, Tirur, Malappuram 676 101, India, IN
31 Pathanamthitta Birders, Pathanamthitta 689 645, India; Kottayam Nature Society, Sri Nilayam, Near Union Club, Kottayam 686 001, India, IN
32 WWF-India, CO Madhavan Road, Ayyankali Nagar, Kunnukuzhy, Thiruvananthapuram 695 035, India; Kole Birders Collective, Thrissur 680 555, India, IN
1 KeralaBirder, Ambadi, Kunnathurmedu, Palakkad 678 013, India, IN
2 College of Climate Change and Environmental Science, Kerala Agricultural University, Thrissur 680 656, India; Department of Wildlife Science, College of Forestry, Kerala Agricultural University, Thrissur 680 656, India, IN
3 College of Climate Change and Environmental Science, Kerala Agricultural University, Thrissur 680 656, India, IN
4 Cochin Natural History Society, Revathi Bhavan, Edathala P. O., Aluva 683 561, India; Kottayam Nature Society, Sri Nilayam, Near Union Club, Kottayam 686 001, India, IN
5 Cochin Natural History Society, Revathi Bhavan, Edathala P. O., Aluva 683 561, India, IN
6 Malappuram Birders, Tirur, Malappuram 676 101, India, IN
7 Pathanamthitta Birders, Pathanamthitta 689 645, India, IN
8 Kottayam Nature Society, Sri Nilayam, Near Union Club, Kottayam 686 001, India, IN
9 Malabar Natural History Society, Susheela Mandir, B.G. Road, Nadakkavu P.O., Kozhikode, 673 011, India, IN
10 WWF-India, CO Madhavan Road, Ayyankali Nagar, Kunnukuzhy, Thiruvananthapuram 695 035, India, IN
11 Kollam Birding Battalion, Kollam 691 010, India, IN
12 Kasaragod Birders, Kasaragod 671 121, India, IN
13 Malabar Natural History Society, Susheela Mandir, B.G. Road, Nadakkavu P.O., Kozhikode, 673 011, India; Calicut Birders Club, Bellevue Dental Muthappan Complex, Patteri, Kozhikode 673 016, India, IN
14 Natural History Society of Palakkad, Palakkad 678 001, India, IN
15 Kole Birders Collective, Thrissur 680 555, India, IN
16 Kerala Veterinary and Animal Sciences University, Pookode, Wayanad 673 576, India, IN
17 Malabar Awareness and Rescue Centre For Wildlife, Chettipedika, Kannur 670 004, India, IN
18 Department of Wildlife Science, College of Forestry, Kerala Agricultural University, Thrissur 680 656, India, IN
19 Birders Ezhupunna, Puthiyaparambil (H), Ezhupunna South P. O, Cherthala. Alappuzha 688 537, India, IN
20 Young Birders Club, Palakkad 678 001, India, IN
21 Hume Centre for Ecology and Wildlife Biology, 4th Cross Rd, Subhash Nagar, Kalpetta, Wayanad 673 121, India, IN
22 Nature Conservation Foundation, 1311, ‘Amritha’, 12th Main, Vijayanagar 1st Stage, Mysuru 570 002, India, IN
23 Kollam Birding Battalion, Kollam 691 010, India; Department of Wildlife Science, College of Forestry, Kerala Agricultural University, Thrissur 680 656, India, IN
24 WWF-India, CO Madhavan Road, Ayyankali Nagar, Kunnukuzhy, Thiruvananthapuram 695 035, India; Department of Wildlife Science, College of Forestry, Kerala Agricultural University, Thrissur 680 656, India, IN
25 Natural History Society of Palakkad, Palakkad 678 001, India; Sálim Ali Centre for Ornithology and Natural History, Anaikatty (Post), Coimbatore 641 108, India, IN
26 Sálim Ali Nature Forum, Coimbatore 641 108, India, IN
27 Western Ghats Hornbill Foundation, Extension Centre, MES Asmabi College, P. Vemballur, Thrissur 680 691, India, IN
28 Sálim Ali Nature Forum, Coimbatore 641 108, India; Sálim Ali Centre for Ornithology and Natural History, Anaikatty (Post), Coimbatore 641 108, India, IN
29 Natural History Society of Palakkad, Palakkad 678 001, India; Department of Wildlife Science, College of Forestry, Kerala Agricultural University, Thrissur 680 656, India, IN
30 Cochin Natural History Society, Revathi Bhavan, Edathala P. O., Aluva 683 561, India; Malappuram Birders, Tirur, Malappuram 676 101, India, IN
31 Pathanamthitta Birders, Pathanamthitta 689 645, India; Kottayam Nature Society, Sri Nilayam, Near Union Club, Kottayam 686 001, India, IN
32 WWF-India, CO Madhavan Road, Ayyankali Nagar, Kunnukuzhy, Thiruvananthapuram 695 035, India; Kole Birders Collective, Thrissur 680 555, India, IN