Vol. 5, Issue 5 (2017)
A review of geo-chemical fractions of heavy metals in agricultural soils
Author(s): Shazia Ramzan, M Auyoub Bhat, Mushtaq A Wani, Juvaria Jeelani, Masrat Maqbool and Rehana Jan
Abstract: Heavy metals are stable and persistence environmental contaminant of soils. The vast increase in population growth, urbanisation and industrialization leads to increase in use of chemicals, which results in total loads of pollutants being delivered to the soil. Heavy metal pollution in soil environment and subsequent uptake in food chain by asquatic organisms and humans put public health at risks. However, even at lower concentrations heavy metals like Cd, Hg, Cr and Pb may exhibit extreme toxicity under certain condition. Thus, this makes regular monitoring to be more imperative and necessary. Total levels of microelements provide no or little information about their chemical nature or potential mobility and bioavailability in the soil. The bioavailability mainly depends on chemical forms, fractions or phases in which an element occurs and is essentially a function of soil chemistry and mineralogy. This paper therefore, reviews the occurrence of heavy metals in various geo-chemical fractions in soil.
Pages: 1436-1449 | 690 Views 7 Downloads
How to cite this article:
Shazia Ramzan, M Auyoub Bhat, Mushtaq A Wani, Juvaria Jeelani, Masrat Maqbool, Rehana Jan. A review of geo-chemical fractions of heavy metals in agricultural soils. Int J Chem Stud 2017;5(5):1436-1449.