Study of Naturally Occurring Radioactive Materials and Some Heavy Metals from Intake of Some Nuts and Seeds in South-Western, Nigeria
Augustine Kolapo Ademola, Ruth Omoseeke Morakinyo
Physical Science International Journal · pp. 15–23 · Published 16 Jul 2020
10.9734/psij/2020/v24i630195Abstract
The concentration of NORMs and some toxic heavy metals in some nuts and seeds commonly consumed in the south-western states of Nigeria were investigated. The analysis was done with NaI(TI) spectrometry and Inductively Coupled Plasma (ICP) respectively. The concentration of 226Ra, 232Th, and 40K in the samples was found to be below the world average. The mean values are 6.6±1.8, 3.6±1.0 and 98.2±13.5 Bq/kg, in nuts and 8.4±2.6, 2.6±1.3 and 97.6±15.0 Bq/kg in seeds respectively. The effective dose in nuts was calculated to be 13.99 and 12.0 µSv in seeds. The fatal and hereditary cancer risk estimated from the consumption of the nuts and seeds are lower than 1.0 x 10-6 which is the lowest limit. Concentration of metals in the samples descend as Fe > Zn > Cu > Cr. The Hazard Indices of heavy metals are lower than 1 except for in Cocoa which is higher than 1 due to the high concentration of Cu and Fe. Therefore, the nuts and seeds analyzed in this study are contaminated with Cu and Fe and so must be taken with care so that consumers will not be exposed to excessive concentration of these metals which may have undesirable effects.
Cited by 3
3 citations reported by external sources — individual citing-article records aren't available to list yet.
Related research
- Atherogenicity, Oxidative Stress, Heavy Metals and Bioelements Status in Hypertensive Nigerians in an Urban Population — shares topic coverage
- Heavy Metal Toxicity and Contamination of Fishes in Port Harcourt Creeks: A Systematic Review of Evidence Integration of Lead, Chromium, and Cadmium Exposure, Impact, and Health Risks — shares topic coverage
- Bacterization Effect of Culture Containing 1-aminocyclopropane-1-carboxylic Acid Deaminase Activity Implicated for Plant Development — shares topic coverage
- Tolerance to Heavy Metals by Some Fungal Isolates from Petroleum Refinery Effluent in Kaduna, Nigeria — shares topic coverage
- Diversity of Acidophilic Bacteria and Archaea and their Roles in Bioremediation of Acid Mine Drainage — shares topic coverage
Article metrics
Real usage data collected on this platform.
0
Page views
0
PDF downloads
0
Outbound clicks
3
Citations
Views by country
Approximate, from request IP at view time — not citizenship or institution. Countries with fewer than 5 views are grouped as "Other".
No views recorded yet.
Traffic sources
Referring site, by host.
No traffic recorded yet.
Views and downloads exclude known bots/crawlers. Citations combines this platform's own DOI-resolved index with each external source's own reported total — see Cited by above for individually listed citing works. Last refreshed 0 seconds ago.