Since
implementing
China's
Clean
Air
Action
Plan,
O3
concentration
has
risen
sharply
and
not
been
effectively
alleviated.
Eastern
China
is
densely
populated
economically
developed,
it
also
the
area
with
most
severe
NO2
pollution.
With
continuous
strengthening
of
NOx
emission
reduction
efforts
in
recent
years,
formation
sensitivity
(OFS)
different
regions
gradually
changed.
In
this
study,
we
first
constructed
transport
networks
each
season
from
2017
to
2020
summarized
trend
changes
clustering
patterns
by
comparing
analyzing
topological
characteristics
years.
Next,
diagnosed
OFS
during
study
period
using
satellite
remote
sensing
data.
The
results
showed
that
activity
was
more
active
spring
summer,
followed
autumn,
weakest
winter,
while
autumn
summer.
Meanwhile,
eastern
mainly
consisted
transitional
regimes
NOx-limited
conversely,
main
regime
VOC-limited
all
other
seasons.
Notably,
there
a
significant
upward
proportion
Finally,
based
on
transmission
feature
change
trends
complex
networks,
clusters
province
city
belongs
pollutant
networks.
On
basis,
can
establish
cross-regional
cooperation
for
formed
seasons,
weaken
regional
pollution
consistency,
block
important
paths.
