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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
chemistry
Air Pollution in Accra Neighborhoods: Spatial, Socioeconomic, and Temporal Patterns
Environmental Science and Technology, Volume 44, No. 7, Year 2010
Notification
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Description
This study examined the spatial, socioeconomic status (SES), and temporal patterns of ambient air pollution in Accra, Ghana. Over 22 months, integrated and continuous rooftop particulate matter (PM) monitors were placed at a total of 11 residential or roadside monitoring sites in four neighborhoods of varying SES and biomass fuel use. PM concentrations were highest in late December and January, due to dust blown from the Sahara. Excluding this period, annual PM2.5 ranged from 39 to 53μg/m3 at roadside sites and 30 to 70 μg/m3 at residential sites; mean annual PM10 ranged from 80 to 108 μg/m3 at roadside sites and 57 to 106 μg/m3 at residential sites. The low-income and densely populated neighborhood of Jamestown/Ushertown had the single highest residential PM concentration. There was less difference across traffic sites. Daily PM increased at all sites at daybreak, followed by a mid-day peak at some sites, and a more spread-out evening peak at all sites. Average carbon monoxide concentrations at different sites and seasons ranged from 7 to 55 ppm, and were generally lower at residential sites than at traffic sites. The results show that PM in these four neighborhoods is substantially higher than the WHO Air Quality Guidelines and in some cases even higher than the WHO Interim Target 1, with the highest pollution in the poorest neighborhood. © 2010 American Chemical Society.
Authors & Co-Authors
Dionisio, Kathie L.
United States, Boston
Harvard T.h. Chan School of Public Health
Arku, Raphael E.
Ghana, Accra
University of Ghana
Cyprus, Limassol
Cyprus University of Technology
Hughes, Allison F.
Ghana, Accra
University of Ghana
Jose Vallarin, O.
United States, Boston
Harvard T.h. Chan School of Public Health
Carmichael, Heather
United States, Cambridge
Harvard College
Spengler, John D.
United States, Boston
Harvard T.h. Chan School of Public Health
Agyei-Mensah, Samuel
Ghana, Accra
University of Ghana
Ezzati, Majid Hassanpour
United States, Boston
Harvard T.h. Chan School of Public Health
Statistics
Citations: 119
Authors: 8
Affiliations: 4
Identifiers
Doi:
10.1021/es903276s
ISSN:
0013936X
e-ISSN:
15205851
Research Areas
Environmental
Study Locations
Ghana