Airborne fine particulate matter (PM2.5) at industrial, high- and low-density residential sites in a Nigerian megacity

Airborne particulate matter PM 2.5 was collected in an industrial, a low-density, and a high-density residential area of Lagos from December 2010 to November 2011, and elemental composition was determined by proton-induced X-ray emission. Across the months, mass concentrations ranged from 13 to 237 ...

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Published inToxicological and environmental chemistry Vol. 100; no. 3; pp. 326 - 333
Main Authors Ezeh, Godwin Chigaekwu, Obioh, Imoh Bassey, Asubiojo, Olabode Idowu, Onwudiegwu, Chinwe Azuka, Nuviadenu, Christian Kouassi, Ayinla, Sulyman B.
Format Journal Article
LanguageEnglish
Published Abingdon Taylor & Francis 16.03.2018
Taylor & Francis Ltd
Subjects
air pollution
Airborne particulates
Airborne PM2.5
Chemical composition
Crude oil
Density
elemental composition
Emission
High density
Megacities
Particulate emissions
Particulate matter
Particulates
Receptors
Residential areas
Residential density
source apportionment
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Summary:Airborne particulate matter PM 2.5 was collected in an industrial, a low-density, and a high-density residential area of Lagos from December 2010 to November 2011, and elemental composition was determined by proton-induced X-ray emission. Across the months, mass concentrations ranged from 13 to 237 µg m −3 , exceeding the World Health Organization guideline value of 10 µg m −3 . Data on 24 elements were obtained, with maximum values during Harmattan season months; source identification and apportionment studies by positive matrix factorization suggested that petroleum oil combustion (70%) was the major source of PM 2.5 and could pose a great hazard to Lagos receptors.
ISSN:0277-2248
1029-0486
DOI:10.1080/02772248.2018.1485924