Chemical speciation, bioavailability and risk assessment of potentially toxic metals in soils around petroleum product marketing company as environmental degradation indicators
نویسندگان
چکیده
The study aims at investigating chemical speciation, bioavailability and risk assessment of some selected metals in soils around refined petroleum depot using the concentrations as variables to ascertain impacts activities within depot. Surface-soils (0–15 cm) were collected from premises Pipelines Product Marketing Company, Ibadan, Nigeria, while control samples 200 m away location. Electrical conductivity pH measured a calibrated dual purpose meter, elemental analysis was done Atomic absorption spectroscopy analytical technique. results showed that exhibited low ecological risk; minor enrichment for Mn, moderately severe Ni Co, Cr extremely Pb, Zn Cd. There contamination factor Ni, Cr, Fe moderate by Geo - accumulation index indicated unpolluted with Fe, polluted Pb strongly Inter-element clustering affinity and/or similar genetic origin among elements. Speciation suggested Cd, occurred residual fraction; carbonate fraction, Mn have its highest percentage Fe–Mn oxides fraction. Percentage mobility most are immobile non-bioavailable. Study concluded oil-impacted contaminated metals, but risk.
منابع مشابه
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متن کاملspeciation of four heavy metals in agricultural soils around draalasfarmine area in marrakech (morocco)
this study was carried out to 1. determine spatial variations of heavy metal deposition in agricultural soils of two rural communities (ouledbouaicha and tazakourte) of about 5790 ha in a mining area near marrakech city in morocco; 2. to assess the extent of metallic pollution generated by the mining activity and; 3. to identify the key mechanism responsible for this contamination and its relat...
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ژورنال
عنوان ژورنال: Petroleum Research
سال: 2022
ISSN: ['2524-1729', '2096-2495']
DOI: https://doi.org/10.1016/j.ptlrs.2021.08.006