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Deprecated: Implicit conversion from float 209.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 J+Environ+Public+Health 2016 ; 2016 (ä): ä Nephropedia Template TP
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Heavy Metal Contamination of Soils around a Hospital Waste Incinerator Bottom Ash Dumps Site #MMPMID27034685
Adama M; Esena R; Fosu-Mensah B; Yirenya-Tawiah D
J Environ Public Health 2016[]; 2016 (ä): ä PMID27034685show ga
Waste incineration is the main waste management strategy used in treating hospital waste in many developing countries. However, the release of dioxins, POPs, and heavy metals in fly and bottom ash poses environmental and public health concerns. To determine heavy metal (Hg, Pb, Cd, Cr, and Ag) in levels in incinerator bottom ash and soils 100?m around the incinerator bottom ash dump site, ash samples and surrounding soil samples were collected at 20?m, 40?m, 60?m, 80?m, 100?m, and 1,200?m from incinerator. These were analyzed using the absorption spectrophotometer method. The geoaccumulation (Igeo) and pollution load indices (PLI) were used to assess the level of heavy metal contamination of surrounding soils. The study revealed high concentrations in mg/kg for, Zn (16417.69), Pb (143.80), Cr (99.30), and Cd (7.54) in bottom ash and these were above allowable limits for disposal in landfill. The study also found soils within 60?m radius of the incinerator to be polluted with the metals. It is recommended that health care waste managers be educated on the implication of improper management of incinerator bottom ash and regulators monitor hospital waste incinerator sites.