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Fig. 3 Contribution of different sector for emissions: a PM, b CO, c SO
2
, d NO
x
in megacity
Mumbai. Source CPCB,
2010b
Fig. 4 HC emissions from different sector from various sector in megacity Mumbai (Left Side) and
RPM emissions from various sectors in megacity Kolkata (Right Side) [1]. Source CPCB
2010b
megacity Mumbai. Based on TERI (
2002
), I have drawn estimated emissions from
transportation sector in Mumbai against vehicle population and ambient concentra-
tion between year 1996 and 2005 (Fig.
5
). Estimation done by TERI (
2002
) stated that
annual emissions from transportation sector in 1993 were 16.33 Gg, which increased
to 27.72 Gg in 2005, and it is projected that by 2010, it will be 30 Gg.
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