Clean Air Initiative: GlobalClean Air Initiative: AsiaIniciativa del Aire Limpio: América LatinaClean Air Initiative: Sub-Saharan Africa
Advanced Search
CAI Listserv
Air Quality Newsletters

Better Air Quality (BAQ) 2008
was held in Bangkok, Thailand
12-14 November 2008

Join the CAI-Asia Partnership

The Effects of Air Pollution on Mortality in Socially Deprived Urban Areas in Hong Kong, China (2008)
Environmental Health Perspectives Volume 116, Number 9, September 2008

Background: Poverty is a major determinant of population health, but little is known about its role in modifying air pollution effects.

Objectives: We set out to examine whether people residing in socially deprived communities are at higher mortality risk from ambient air pollution.

Methods: This study included 209 tertiary planning units (TPUs) , the smallest units for town planning in the Special Administrative Region of Hong Kong, China. The socioeconomic status of each TPU was measured by a social deprivation index (SDI) derived from the proportions of the population with a) unemployment, b) monthly household income < US$250, c) no schooling at all, d) one-person household, e) never-married status, and f) subtenancy, from the 2001 Population Census. TPUs were classified into three levels of SDI: low, middle, and high. We performed time-series analysis with Poisson regression to examine the association between changes in daily concentrations of ambient air pollution and daily number of deaths in each SDI group for the period from January 1996 to December 2002. We evaluated the differences in pollution effects between different SDI groups using a case-only approach with logistic regression.

Results: We found significant associations of nitrogen dioxide, sulfur dioxide, particulate matter with aerodynamic diameter < 10 µm, and ozone with all nonaccidental and cardiovascular mortality in areas of middle or high SDI (p < 0.05) . Health outcomes, measured as all nonaccidental, cardiovascular, and respiratory mortality, in people residing in high SDI areas were more strongly associated with SO2 and NO2 compared with those in middle or low SDI areas.

Conclusions: Neighborhood socioeconomic deprivation increases mortality risks associated with air pollution.

Read more:

air pollution, case-only approach, deprivation, effect modification, Hong Kong, mortality, time-series analysis
Air Quality in Chinese Cities
Courtesy of VECC-SEPA

API to Concentration ConverterAPI to Concentration Converter
[.xls, 27.6Kb]

Quick Links

Who we are:
- CAI-Asia Center
- CAI-Asia Partnership
- Country Networks

Key documents:
- Annual Report 2008
- Fuel Roadmap
- Country Synthesis Reports
- Compendium |
- Benchmarking Report
- Quarterly Report (Center)
- Newsletters
................................more >>

Country / City
Hong Kong
Classified Under
Country Networks > China
Related Topics
Measuring impacts > Health impacts

Secretariat: CAI-Asia Center, 3510 Robinsons Equitable Tower, ADB Ave., Ortigas Center, Pasig City, Philippines 1605
Tel: +632 3952843 to 45 / Fax: +632 3952846