International Science Community Association Research Journal of Chemical Sciences 2231-606X 7 10 2017 10 18 Nickel contamination of the environment 21 25 EN Subhi A. Al-Jibori 1 Chemistry Dept., College of Science, TikritUniversity, Tikrit, Iraq Mahmood M. Barbooti 2 Dept. Applied Science, University of Technology, P.O. Box 35045, Baghdad, Iraq Ahmed S.M. Al-Janabi 3 Dept Biochemistry, College of Veterinary Medicine, Tikrit University, Tikrit, Iraq A.H. Ali 4 Dept. Chemistry, College of Education, Ibnul-Haytham, University of Baghdad, Baghdad, Iraq N. Sami 5 Chemistry Dept., College of Science, TikritUniversity, Tikrit, Iraq Bakhtyar K. Aziz 6 Chemistry Department, University of Sulaimani, Sulaimani, Iraq S. Basak-Modi 7 Chemistry Dept., University College London, London WC1H 0AJ, UK Kwaji Kwaji 1 Department of Chemistry, Faculty of Science, Gombe State University, Gombe, Nigeria H.M. Adamu 2 Department of Chemistry, Faculty of Science, Abubakar Tafawa Balewa University, Bauchi, Nigeria I.Y. Chindo 3 Department of Chemistry, Faculty of Science, Abubakar Tafawa Balewa University, Bauchi, Nigeria Pradhananga Achut Ram 1 Faculty of Science, Padma Kanya Multiple Campus, Tribhuvan University, Bagbazar, Kathmandu, Nepal Shakya Ramesh Kaji 2 Faculty of Science, Padma Kanya Multiple Campus, Tribhuvan University, Bagbazar, Kathmandu, Nepal Shakya Pawan Raj 3 Faculty of Science, Padma Kanya Multiple Campus, Tribhuvan University, Bagbazar, Kathmandu, Nepal Shilpa Sharma 1 National Institute of Technology, Raipur-492010, CG, India Fahmida Khan 2 National Institute of Technology, Raipur-492010, CG, India Madhurima Pandey 3 Bhilai Institute of Technology, Durg-491001, CG, India Piyush Kant Pandey 4 Bhilai Institute of Technology, Raipur-493661, India > Short Review Paper 2017 4 8 2017 10 18 Nickel (Ni) and its compounds are being released in the environment regularly. Nickel and its compounds can be found in earth crust, windblown dust, volcanic eruptions as natural sources and many in anthropogenic sources. There are many sources responsible for the nickel emission to atmosphere. Nickel and its compounds are used in various industrial and consumer products therefore the presence of Ni can be found in almost all the environmental matrices. Nickel fumes and some volatile compounds of nickel make it an important occupational pollutant. Nickel and its compounds are known human carcinogens. This paper has made an effort to summarize the various aspects of nickel contamination of environment. Copyright@ International Science Community Association