ERF of PM2.5 on mortality in general population

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Scope

ERF of PM2.5 on mortality in general population describes the relationship between PM2.5 exposure and specific causes of mortality in general adult population. The variable focuses but is not limited to long-term exposure.

Definition

Data

PM2.5 are fine particles less than 2.5 μm in diameter. Exposure-response function can be derived from exposure modelling, animal toxicology, small clinical or panel studies, and epidemiological studies. Exposed population can be divided into subpopulations (e.g. adults, children, infants, the elderly), and exposure is assessed per certain timeperiod (e.g. daily or annual exposure).

  • Health effects related to short-term exposure
    • respiratory symptoms
    • adverse cardiovascular effects
    • increased medication usage
    • increased number of hospital admissions
    • increased mortality
  • Health effects related to long-term exposure (more relevance to public health)
    • increased incidence of respiratory symptoms
    • reduction in lung function
    • increased incidence of chronic obstructive pulmonary disease (COPD)
    • reduction in life expectancy
      • increased cardiopulmonary mortality
      • increased lung cancer mortality

Sensitive subgroups: children, the elderly, individuals with heart and lung disease, individuals who are active outdoors.

  • 6% increase in the risk of deaths from all causes (95% CI 2-11%)
  • 12% increase in the risk of death from cardiovascular diseases and diabetes (95% CI 8-15%)
  • 14% increase in the risk of death from lung cancer (95% CI 4-23%)

per each 10 µg/m3 elevation in PM2.5 air pollution


Unit

% change in the risk of death/health effect per each 10 µg/m3 change in PM2.5

Result

PM2.5 exposure-response
  • 6% increase in the risk of deaths from all causes (95% CI 2-11%)
  • 12% increase in the risk of death from cardiovascular diseases and diabetes (95% CI 8-15%)
  • 14% increase in the risk of death from lung cancer (95% CI 4-23%)

per each 10 µg/m3 elevation in PM2.5 air pollution.

References

  • Health aspects of air pollution. Results from the WHO project "Systematic review of health aspects of air pollution in Europe". World Health Organization, 2004. [1]
  • Pope et al. 2002. Lung cancer, cardiopulmonary mortality, and long-term exposure to fine particulate air pollution. JAMA 287(9), 1132-1141.
  • Pope et al. 2004. Cardiovascular mortality and long-term exposure to particulate air pollution. Circulation (109), 71-77.
  • Service Contract for Carrying out Cost-Benefit Analysis of Air Quality Related Issues, in particular in the Clean Air for Europe (CAFE) Programme. Volume 2: Health Impact Assessment. AEA Technology Environment, 2005. [2]
  • [3]
  • Robin C. Puett, Joel Schwartz, Jaime E. Hart, Jeff D. Yanosky, Frank E. Speizer, Helen Suh, Christopher J. Paciorek, Lucas M. Neas and Francine Laden: Chronic Particulate Exposure, Mortality, and Coronary Heart Disease in the Nurses’ Health Study. American Journal of Epidemiology, doi:10.1093/aje/kwn232 [4]
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