International Science Community Association International Research Journal of Biological Sciences 2278-3202 8 6 2019 06 10 Determination of heavy metals in cow (Bos indicus) dung collected from Hanumangarh district, Rajasthan, India 23 27 EN N. Prabhu 1 Department of Biotechnology, Vivekanandha College of Engineering for Women, Thiruchengode, Namakkal-637 205, Tamilnadu, India T. Gajendran 2 Department of Biotechnology, Bharathidasan Institute of Technology, Anna University, Tiruchirappalli-620 024, Tamilnadu, India B. Kartika 3 Department of Biotechnology, Vivekanandha College of Engineering for Women, Thiruchengode, Namakkal-637 205, Tamilnadu, India S. Monisha 4 Department of Biotechnology, Vivekanandha College of Engineering for Women, Thiruchengode, Namakkal-637 205, Tamilnadu, India S. Saarumathi 5 Department of Biotechnology, Vivekanandha College of Engineering for Women, Thiruchengode, Namakkal-637 205, Tamilnadu, India V.N. Murulidhara 1 Dept. of Botany, Government First Grade College of Arts, Science & Commerce, Sira, Karnataka, India V.N. Yogananda Murthy 2 Dept. of Biotechnology, Azyme Biosciences Pvt. Ltd. Bengaluru, Karnataka, India Nikita Vadsaria 1 Dept. of Zoology, Biomedical Technology and Human Genetics, University School of Sciences, Gujarat University, Ahmedabad-380009, India Devashree Oza 2 Dept. of Zoology, Biomedical Technology and Human Genetics, University School of Sciences, Gujarat University, Ahmedabad-380009, India R.J. Verma 3 Dept. of Zoology, Biomedical Technology and Human Genetics, University School of Sciences, Gujarat University, Ahmedabad-380009, India Mahendra Singh 1 Department of Environmental Science, Maharaja Ganga Singh University, Bikaner-334004, Rajasthan, India Rajaram Choyal 2 Department of Environmental Science, Maharaja Ganga Singh University, Bikaner-334004, Rajasthan, India P.D. Charan 3 Department of Environmental Science, Maharaja Ganga Singh University, Bikaner-334004, Rajasthan, India > 2019 1 28 2019 06 10 Rapid development of heavy metal research has not been a new area of science. Heavy metal content in cow dung may be due to ingestion of contaminated fodder, water etc. It may affect the quality of the soil, contaminate crops and pose health risks to both animals and people. Cow dung, a type of manure, is a cheap and easily available resource for agriculture. The present study emphasized on quantitative analysis of heavy metals in 120 cow dung samples collected from different locations in Hanumangarh district, Rajasthan. The quantitative assessment of nine heavy metals (Zn, Pb, Cu, Cd, Fe, Ni, Cr, Mn and Co) using Atomic Absorption spectrophotometer was done under this investigation. The results showed that the average levels of contamination of heavy metals was found in the order of the Iron>Copper>Manganese>Zinc>Chromium> Lead>Nickel>Cobalt>Cadmium. Copyright@ International Science Community Association