There are many potential sources in urban
areas that are generally located physically away
from the urban center but still have to be considered as a part of the urban airshed. Airports are
one of these.
Airports are usually located in the vicinity of
larger cities and often mentioned as potential
sources of high pollution loads in the urban areas
(note: the haze in Photo 2a at the Delhi airport is
probably not from the airport activities alone but
2.5
Tokyo
New York
São Paulo
Mumbai
Kolkata
Shanghai
Buenos Aires
Delhi
Los Angeles
Osaka-Kobe
Jakarta
Beijing
Rio de Janeiro
Cairo
Dhaka
Moscow
Karachi
−2.5
−1.5
−0.5
0.5
1.5
Urban Air Quality: Sources and Concentrations,
Fig. 2 Megacities pollution indices (MPI) based on measurements of the classical air pollutants and aggregated
into an index for total pollution level (multi pollutant).
The plot is reproduced from Gurjar et al. [12]. 30% of the
local NO x contribution is related to aircraft, whereas the
remaining 95% to 70% is from road traffic [15]
Urban Air Quality: Sources and Concentrations, Photo 1 Photo from a Beijing Hotel, October 2008, showing
reduced visibility due to the poor air quality. (Photo by M. Goodsite)
200
Urban Air Quality: Sources and Concentrations
areas that are generally located physically away
from the urban center but still have to be considered as a part of the urban airshed. Airports are
one of these.
Airports are usually located in the vicinity of
larger cities and often mentioned as potential
sources of high pollution loads in the urban areas
(note: the haze in Photo 2a at the Delhi airport is
probably not from the airport activities alone but
2.5
Tokyo
New York
São Paulo
Mumbai
Kolkata
Shanghai
Buenos Aires
Delhi
Los Angeles
Osaka-Kobe
Jakarta
Beijing
Rio de Janeiro
Cairo
Dhaka
Moscow
Karachi
−2.5
−1.5
−0.5
0.5
1.5
Urban Air Quality: Sources and Concentrations,
Fig. 2 Megacities pollution indices (MPI) based on measurements of the classical air pollutants and aggregated
into an index for total pollution level (multi pollutant).
The plot is reproduced from Gurjar et al. [12]. 30% of the
local NO x contribution is related to aircraft, whereas the
remaining 95% to 70% is from road traffic [15]
Urban Air Quality: Sources and Concentrations, Photo 1 Photo from a Beijing Hotel, October 2008, showing
reduced visibility due to the poor air quality. (Photo by M. Goodsite)
200
Urban Air Quality: Sources and Concentrations