scholarly journals Chemical Speciation, Bioavailability and Risk Assessment of Potentially Toxic Metals in Highway Dusts as Indicators of Highway Pollution

2019 ◽  
Vol 7 (2) ◽  
pp. 30
Author(s):  
Festus Mayowa Adebiyi ◽  
Abiodun Odunlami Adegunwa ◽  
Odunayo Timothy Ore ◽  
Godswill Ehimengbale Akhigbe
Keyword(s):  
Risk Assessment ◽  
Toxic Metals ◽  
Chemical Speciation ◽  
Potentially Toxic Metals

scholarly journals Chemical Speciation, Bioavailability and Risk Assessment of Potentially Toxic Metals in Soils Around Petroleum Product Marketing Company as Environmental Degradation Indicators

2021 ◽  
Author(s):  
D. A Ayeni ◽  
Festus Mayowa ADEBIYI
Keyword(s):  
Risk Assessment ◽  
Ecological Risk ◽  
Chemical Speciation ◽  
Contamination Factor ◽  
Speciation Analysis ◽  
Residual Fraction ◽  
Potentially Toxic Metals ◽  
Analytical Technique ◽  
Accumulation Index ◽  
Product Marketing

Abstract The study aims at investigating chemical speciation, bioavailability and risk assessment of some selected metals in soils around refined petroleum depot using the concentrations of the metals as variables to ascertain the impacts of the activities within the petroleum depot. Surface-soils were got from within the premises of Pipelines and Product Marketing Company, Ibadan, Nigeria, while control samples were got at 200 m away from the study location. Electrical conductivity and pH were measured using a calibrated dual purpose meter, while elemental analysis was done using Atomic absorption spectroscopy analytical technique. The results showed that the soils exhibited low ecological risk; minor enrichment for Mn, moderately severe enrichment for Ni and Co, severe enrichment for Cr and extremely severe enrichment for Pb, Zn and Cd; low contamination factor by Pb, Ni, Mn, Cr, Co, and Fe and moderate contamination by Zn and Cd. Geo - accumulation index results indicated unpolluted with Ni, Mn, Cr, Co, and Fe, unpolluted to moderately polluted with Pb and Zn and moderately to strongly polluted with Cd. Inter-element clustering results indicated chemical affinity and/or similar genetic origin among the elements. Speciation analysis suggested that Fe, Co, Cr, Cd, and Ni occurred in the residual fraction; Pb, and Zn in the carbonate fraction, while Mn have its highest percentage in the Fe-Mn oxides fraction. Percentage mobility and bioavailability showed that most of the metals are immobile and non-bioavailable. Study concluded that the oil-impacted soils were contaminated with most of the metals, but with low ecological risk.

Preliminary Health Risk Assessment of Potentially Toxic Metals in Surface Water of the Himalayan Rivers, Nepal

2016 ◽  
Vol 97 (6) ◽  
pp. 855-862 ◽  
Author(s):  
Lekhendra Tripathee ◽  
Shichang Kang ◽  
Chhatra Mani Sharma ◽  
Dipesh Rupakheti ◽  
Rukumesh Paudyal ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Surface Water ◽  
Health Risk ◽  
Health Risk Assessment ◽  
Toxic Metals ◽  
Potentially Toxic Metals ◽  
Himalayan Rivers

Potentially toxic metals in sediments from Liao River estuary wetland: concentration, source, and risk assessment

2022 ◽  
pp. 2100470
Author(s):  
Zhongping Wei ◽  
Qing Luo ◽  
Yingxu Gao ◽  
Ying Zhang ◽  
Li Liu ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Toxic Metals ◽  
River Estuary ◽  
Potentially Toxic Metals

scholarly journals Health Risk Assessment of Potentially Toxic Metals in Differently Packaged Soft Drinks and Malt Products Commonly Consumed in Nigeria

2019 ◽  
Vol 4 (2) ◽  
pp. 17
Author(s):  
John Adekunle Oyedele Oyekunle ◽  
Solomon Sunday Durodola ◽  
Fehintola Folakemi Oguntade ◽  
Abolanle Saheed Adekunle ◽  
Wasiu Oladotun Makinde ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Health Risk ◽  
Health Risk Assessment ◽  
Toxic Metals ◽  
Soft Drinks ◽  
Potentially Toxic Metals

scholarly journals Statistical analyses and risk assessment of potentially toxic metals (PTMS) in children’s toys

2017 ◽  
Vol 11 (6) ◽  
pp. 842-849 ◽  
Author(s):  
Aderonke O. Oyeyiola ◽  
Mary I. Akinyemi ◽  
Ifechukwude E. Chiedu ◽  
Oluwatoyin T. Fatunsin ◽  
Kehinde O. Olayinka
Keyword(s):  
Risk Assessment ◽  
Toxic Metals ◽  
Statistical Analyses ◽  
Potentially Toxic Metals
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