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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
A New Global Air Quality Health Index Based on the WHO Air Quality Guideline Values With Application in Cape Town
International Journal of Public Health, Volume 68, Article 1606349, Year 2023
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Description
Objectives: This study developed an Air Quality Health Index (AQHI) based on global scientific evidence and applied it to data from Cape Town, South Africa. Methods: Effect estimates from two global systematic reviews and meta-analyses were used to derive the excess risk (ER) for PM2.5, PM10, NO2, SO2 and O3. Single pollutant AQHIs were developed and scaled using the ERs at the WHO 2021 long-term Air Quality Guideline (AQG) values to define the upper level of the “low risk” range. An overall daily AQHI was defined as weighted average of the single AQHIs. Results: Between 2006 and 2015, 87% of the days posed “moderate to high risk” to Cape Town’s population, mainly due to PM10 and NO2 levels. The seasonal pattern of air quality shows “high risk” occurring mostly during the colder months of July–September. Conclusion: The AQHI, with its reference to the WHO 2021 long-term AQG provides a global application and can assist countries in communicating risks in relation to their daily air quality. Copyright © 2023 Adebayo-Ojo, Wichmann, Arowosegbe, Probst-Hensch, Schindler and Künzli.
Authors & Co-Authors
Adebayo-Ojo, Temitope Christina
Switzerland, Allschwil
Swiss Tropical and Public Health Institute Swiss Tph
Switzerland, Basel
Universitat Basel
Wichmann, Janine
South Africa, Pretoria
University of Pretoria
Arowosegbe, Oluwaseyi Olalekan
United Kingdom, London
Imperial College London
Probst-Hensch, Nicole M.
Switzerland, Allschwil
Swiss Tropical and Public Health Institute Swiss Tph
Switzerland, Basel
Universitat Basel
Schindler, Christian
Switzerland, Allschwil
Swiss Tropical and Public Health Institute Swiss Tph
Switzerland, Basel
Universitat Basel
Künzli, Nino
Switzerland, Allschwil
Swiss Tropical and Public Health Institute Swiss Tph
Switzerland, Basel
Universitat Basel
Switzerland, Zurich
Swiss School of Public Health Ssph+
Statistics
Authors: 6
Affiliations: 5
Identifiers
Doi:
10.3389/ijph.2023.1606349
ISSN:
16618564
Research Areas
Environmental
Study Design
Cross Sectional Study
Study Locations
South Africa