Geospatial distribution of heavy metal contamination in Ewekoro Limestone, SW Nigeria

Abstract

Limestone exploration has numerous advantage to the nation’s economy. However, major anthropogenic activities such as mining of such mineral deposits causes environmental contamination due to heavy metals pollution. The presence of heavy metals such as lead, cadmium, mercury and arsenic can interfere with the biochemical pathways by interaction with enzymes and proteins. They equally have the capacity to alter the DNA repair mechanism and act as the inducers of carcinogenesis. The focus of the research is therefore to detect the extent of heavy metals contaminations within the sampled Ewekoro limestone, southwestern Nigeria and to ascertain the risks they posed to the quarry workers, miners and the people residing in the study area.

Physico-chemical characterization of indoor settled dust in Children's microenvironments in Ikeja and Ota, Nigeria

“…This study's results corroborate other indoor dust results for Pb in older homes [ 5 , [43] , [44] , [45] ]. Lead is highly toxic and non-degradable, exposure to lead, even at trace levels, can result in neurodevelopmental disorders (NDDs) in children [ 28 , [46] , [47] , [48] ]. As such, the service of a certified professional to carry out proper renovation of these facilities is required [ 5 ].…”