Abstract
Objective. To conduct a health impact assessment (HIA) to
quantify health benefis for several PM and O3 air pollution
reduction scenarios in the Mexico City Metropolitan Area
(MCMA). Results from this HIA will contribute to the scientifi
support of the MCMA air quality management plan (PROAIRE)
for the period 2011-2020. Materials and methods. The
HIA methodology consisted of four steps: 1) selection of the
air pollution reduction scenarios, 2) identifiation of the atrisk population and health outcomes for the 2005 baseline
scenario, 3) selection of concentration-response functions
and 4) estimation of health impacts. Results. Reductions of
PM
10 levels to 20 μg/m3 and O3 levels to 0.050ppm (98 μg/
m3) would prevent 2 300 and 400 annual deaths respectively.
The greatest health impact was seen in the over-65 age group
and in mortality due to cardiopulmonary and cardiovascular
disease.Conclusion. Improved air quality in the MCMA could
provide signifiant health benefis through focusing interventions by exposure zones