International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B7. Istanbul 2004
TSM
September 2002
TSM
October 2002
TSM
November 2002
TSM
Figure 5.TSM in 2002
A voronoi diagram of the area air pollution monitoring
stations in Tehran has been produced to is illustrate the
spatial dispersion of the station and their influenced area
(Figure 6).
Voronoi Diagram
Voronoi Diagram
tu 1
40 Wiometers
emm - - : » sm &
Figure 6. Voronoi Diagram of Tehran's air
pollution monitoring stations
7. CONCLUSIONS AND FUTURE
DIRECTIONS
The air pollution problem originating from the various
sources can be controlled by the development of air quality
management system.
The seasonal air pollution surfaces are useful for wide range
of purposes: for health risk assessment of the population
within the study area, to assist in establishing and monitoring
air quality standards, and to evaluate transport policies. For
high accuracy it is necessary to study meteorological
parameters like wind direction, wind speed, temperature,
altitude which affect pollutant dispersion. It is possible to
improve the spatial predictions of air pollution levels by
deriving an empirical regression model of the relation
between pollutants and independent variables which is the
aim of the next step of this research.
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