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International Journal of Applied Agricultural & Horticultural Sciences
  • 29 April, 2024
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Language : English
DOI Prefix : 10.37322
P-ISSN : 0974-0775
E-ISSN : 2582-4198
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Vol. 7 (6) : November-December 2016 issue
Green Farming Vol. 7 (6) : 1441-1444 ; November-December, 2016
Evaluation of heavy metal content in soils under the impact zone of Raichur Thermal Power Station
ANURADHA DESAI1*, NARAYANA RAO2, K., RAGHAVENDRA3, SHREENIVAS B.V.4 and SOUMYA KULKARNI5
Deptt. of Soil Science and Agricultural Chemistry, University of Agricultural Science, Raichur – 584 104 (Karnataka)
Designation :  
1SRF *(anuradhadesai.3927@gmail.com), 2Associate Professor, 3,4,5Ph.D. Scholar
Subject : Soil Science & Agric. Chemistry; Soil Health & Soil Conservation Engg.
Paper No. : P-4696
Total Pages : 4
Received : 15 January 2016
Revised accepted : 18 October 2016
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Citation :

ANURADHA DESAI, NARAYANA RAO, K. RAGHAVENDRA, SHREENIVAS B.V. and  SOUMYA KULKARNI. 2016. Evaluation of heavy metal content in soils under the impact zone of Raichur Thermal Power Station. Green Farming Vol. 7 (6) : 1441-1444 ; November-December, 2016

ABSTRACT
The present study evaluates the heavy metal status within the impact zone of Raichur Thermal Power Station (RTPS). The soil samples were collected within the impact zone of RTPS at two depths (0-15 and 15-30 cm) consisting of red and black soils. On the other hand soils were compared with cultivated soils of College of Agriculture, UAS Raichur. The results revealed that the heavy metal concentration of soils within the impact zone of RTPS were comparatively higher over the control soils irrespective to the type of soils and direction. Among the soil types within the impact zone, black soils had higher content of Cd (57.1 and 53.6 mg kg-1), Mn (30.1 and 26.2 mg kg-1), Ni (303 and 179 mg kg-1), Pb (75.3 and 68.2 mg kg-1), Si (376 and 325 mg kg-1) and Zn (63.4 and 61.5 mg kg-1) than the red soils and the red soils were higher in Cu (7.32 and 7.04mg kg-1) and Fe (142 and 134 mg kg-1) than the black soils. The comparison of heavy metal contents in soils with reference to distance and direction from the RTPS indicated no clear trend in the distribution of heavy metals in the soils studied.
Key words :
Black soil, Coal, Fly ash, Heavy metals, Red soil, Thermal power plant.