Air Pollution and Mortality in Bangkok, Thailand
Author Information
Author(s): Vichit-Vadakan Nuntavarn, Vajanapoom Nitaya, Ostro Bart
Primary Institution: Faculty of Public Health, Thammasat University
Hypothesis
Is there a mortality risk from air pollution in Bangkok, Thailand?
Conclusion
The study found strong associations between various mortality outcomes and PM10 levels in Bangkok, with higher risks than typically reported in Western countries.
Supporting Evidence
- PM10 levels in Bangkok are significantly higher than in most North American and Western European cities.
- The excess risk for non-accidental mortality was 1.3% per 10 μg/m3 of PM10.
- Cardiovascular mortality showed an even higher excess risk of 1.9% per 10 μg/m3 of PM10.
- Mortality effects were consistent across multipollutant models.
- Older adults and those with respiratory issues were particularly vulnerable to PM10 exposure.
Takeaway
This study shows that breathing dirty air in Bangkok can make people sick and even lead to death, especially for older folks and those with heart problems.
Methodology
The study analyzed mortality data from 1999 to 2003, using air pollution measurements and statistical models to assess the impact of PM10 on daily mortality.
Potential Biases
Potential misclassification of causes of death, especially among the elderly.
Limitations
The study may not account for all confounding factors, such as under-reporting of influenza deaths.
Participant Demographics
The study included residents of Bangkok, with a significant portion of mortality among males and individuals aged 65 and older.
Statistical Information
P-Value
0.008
Confidence Interval
95% CI, 0.8–1.7
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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