Elemental Characterization and Source Identification of Fine Particulate Matter (PM2.5) in an Industrial Area of Lagos State, Nigeria

Okuo, J. M.; Chiedu, I. E.; Anegbe, B.; Oyibo, F. O.; Ojo, W.

doi:10.9734/psij/2017/36683

Cited by 4 publications

(5 citation statements)

References 0 publications

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“…The use of the metal in paint and varnish production, as anti knocking additives to enhance the octane number of gasoline, probably contributed to the buildup of the metal in the atmosphere. This corroborates a study conducted in Lagos (Okuo et al 2017) where Pb was reported to be associated with the industrial environment and vehicular emission. The highest concentration of Cd was also observed in this location.…”

Section: Elemental Concentrationsupporting

confidence: 92%

“…Samples of fine airborne particulate matter (PM2.5) were collected on pre weighed filter papers using a portable air sampler (Okuo et al 2017). A size selective impactor was placed in the cassette holder and was fixed onto the sampler (Airmetric: model 5.0).…”

Section: Sample Collectionmentioning

confidence: 99%

“…Fe was used as the reference element in this study because of its crustal abundance. Previous studies that have used Fe as the reference element include: (Okuo et al 2017;Okuo et al 2018;Okuo & Ndiokwere 2005;Ediagbonya 2012). Other elements popularly used for computing enrichment factor include: Al, Li, Sc, Ti, Si and Zr.…”

Section: Pollution Indices (Pis)mentioning

confidence: 99%

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Chemical Composition and Source Identification of Fine Particulate Matter (PM2.5) in Two Contrastive Areas of Lagos Megacity, Southern Nigeria

2019

JNSR

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Industrial activities contribute immensely to high emission rates of particulate matter (PM) and other pollutants into the ambient air. The siting of industrial plants close to a populated area can have adverse implications on human health and the environment at large. The industrialization and urbanization of Lagos megacity, has led to increased pressure on the city especially on air quality. The chemical complexity of airborne particles makes it imperative to consider their composition and sources of emission. This paper deals with the assessment of particulate matter pollution in an industrial and a non industrial area of Lagos State. Samples of PM2.5 were collected with an air sampler (Airmetric model 5.0) between November 2018 and April 2019. Elemental analysis was carried out using Atomic Absorption Spectroscopy (AAS). Particulate mass loading obtained was in the range of 51.28 to 190.48 μg/m 3 and 41.67 to 88.89 μg/m 3 in the industrial and control area respectively. Enrichment factor (EF) and principal component Analysis (PCA) were used for source identification. The EF analysis revealed that; Pb, Cd, Cu, Ni and Na were severely enriched while K and Ca were moderately enriched in virtually all the sites. The result of the PCA showed that the major sources of these elements were industrial/vehicular emission, marine, road dust, crustal dust and incineration.

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Section: Elemental Concentrationsupporting

confidence: 92%

Section: Sample Collectionmentioning

confidence: 99%

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Chemical Composition and Source Identification of Fine Particulate Matter (PM2.5) in Two Contrastive Areas of Lagos Megacity, Southern Nigeria

2019

JNSR

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“…In Nigeria, almost the entire country has a PM2.5 concentration above the WHO guideline of 25μg/m 3 (24-hour mean) and 10μg/m 3 (annual mean) [28]. This presents an environmental health burden arising from the potential risk of continuous exposure to a dangerous level of PM2.5…”

mentioning

confidence: 99%

“…However few researchers have conducted studies on the baseline, spatial and temporary variation of respirable PM2.5 and its associated metal level in different cities in Nigeria. Their results showed a comparatively high level of PM2.5 that were above the WHO guideline [29], [14], [5], [26], [32], [28], [46].…”

mentioning

confidence: 99%

Quantification of PM2.5 Bound Polycyclic Aromatic Hydrocarbons (PAHs) and Modelling of Benzo[a]pyrene in the Ambient Air of Automobile Workshops in Benin City

Onaiwu

Okuo

2023

Aerosol Sci Eng

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The activities of artisans conducted regularly in automobile workshops had been observed to generate pollutants that are not limited to particulate matter (PM), Polycyclic Aromatic Hydrocarbons (PAHs). Thus, this research provided data on the quantification of PAHs coupled with the building of a predictive statistical model for the prediction of benzo[a]pyrene (BaP) in Benin City. The City was divided into four zones, namely North West (NW), North East (NE), South East (SE) and South West (SW) and a total of 180 representative samples were collected from artisans' workshops in both wet and dry seasons using Apex2IS Casella standard pump fitted with conical inhalable sampling (CIS) head at a flow rate of 3.5L/min for 8 hours. Meteorological parameters were collected simultaneously with the PM2.5. PAHs were extracted and quantified using GC-FID. The annual average concentration of the total PAHs bounded to PM2.5 for NW, NE,

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Quantification of Fine Particulate Matter (PM2.5) and Its Correlation with Meteorological Parameters Within the Ambient Air of Automobile Workshops in Benin City

Onaiwu

Okuo

2022

Aerosol Sci Eng

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Elemental Characterization and Source Identification of Fine Particulate Matter (PM2.5) in an Industrial Area of Lagos State, Nigeria

Cited by 4 publications

References 0 publications

Chemical Composition and Source Identification of Fine Particulate Matter (PM2.5) in Two Contrastive Areas of Lagos Megacity, Southern Nigeria

Chemical Composition and Source Identification of Fine Particulate Matter (PM2.5) in Two Contrastive Areas of Lagos Megacity, Southern Nigeria

Quantification of PM2.5 Bound Polycyclic Aromatic Hydrocarbons (PAHs) and Modelling of Benzo[a]pyrene in the Ambient Air of Automobile Workshops in Benin City

Quantification of Fine Particulate Matter (PM2.5) and Its Correlation with Meteorological Parameters Within the Ambient Air of Automobile Workshops in Benin City

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