Impact of Land-Use Types on the Distribution and Exposure Risk of Polycyclic Aromatic Hydrocarbons in Dusts from Benin City, Nigeria

Impact of Land-Use Types on the Distribution and Exposure Risk of Polycyclic Aromatic Hydrocarbons in Dusts from Benin City, Nigeria

The concentrations of the sixteen United States Environmental Protection Agency polycyclic aromatic hydrocarbons (PAHs) were determined in dusts from different land-use types in Benin City by means of gas chromatography–mass spectrometry. The results obtained were used to assess the ecological and h...

Full description

Saved in:
Bibliographic Details
Published in:Archives of environmental contamination and toxicology Vol. 81; no. 2; pp. 210 - 226
Main Authors: Iwegbue, Chukwujindu M. A., Kekeke, Ejiroghene F., Tesi, Godswill O., Olisah, Chijioke, Egobueze, Francis E., Chukwu-Madu, Etanuro, Martincigh, Bice S.
Format: Journal Article
Language:English
Published: New York Springer US 01-08-2021
Springer Nature B.V
Subjects:
Benzo(a)pyrene
Biomass burning
Burning
Carcinogens
Charcoal
Earth and Environmental Science
Ecological effects
Ecological risk assessment
Ecotoxicology
Environment
Environmental Chemistry
Environmental Health
Environmental protection
Gas chromatography
Health risks
Industrial areas
Land use
Mass spectrometry
Mass spectroscopy
Monitoring/Environmental Analysis
Multivariate analysis
Parks & recreation areas
Playgrounds
Pollution
Polycyclic aromatic hydrocarbons
Pyrene
Residential areas
Risk assessment
Soil quality
Soil Science & Conservation
Nigeria
Benin
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The concentrations of the sixteen United States Environmental Protection Agency polycyclic aromatic hydrocarbons (PAHs) were determined in dusts from different land-use types in Benin City by means of gas chromatography–mass spectrometry. The results obtained were used to assess the ecological and human health risk and to determine the source apportionment. The Ʃ16 PAH concentrations in dusts from Benin City ranged from 230 to 2300 µg kg −1 for industrial areas, 211–1330 µg kg −1 for commercial areas, 153–1170 µg kg −1 for residential areas, and from 216 to 1970 µg kg −1 for school playgrounds/parks. The ecological risk assessment suggested that the levels of PAHs in dusts from these land-use types are of low-to-moderate risk to organisms. The benzo(a)pyrene carcinogenic potency [BaP TEQ ] (70.5–131 µg kg −1 ) and benzo(a)pyrene mutagenic potency [BaP MEQ ] (62.9–122 µg kg −1 ) concentrations were below the Canadian soil quality guideline value of 600 µg kg −1 . The incremental lifetime carcinogenic risk (ILCR) arising from exposure of adults and children to PAHs in dusts from Benin City were in the magnitude of 10 –4 –10 –2 , which exceeded the safe target levels of 10 –6 , implying a considerable cancer risk for residents of this city. The PAH source apportionment derived from isomeric ratios and multivariate statistics indicated that burning of biomass, wood, and charcoal, and vehicular traffic were the predominant sources of PAHs in dusts from Benin City.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0090-4341
1432-0703
DOI:10.1007/s00244-021-00861-z