Ecological Processes,
Год журнала:
2024,
Номер
13(1)
Опубликована: Авг. 21, 2024
Abstract
Background
In
response
to
environmental
degradation
and
the
associated
health
challenges,
Chinese
government
has
implemented
a
comprehensive
array
of
protection
measures.
Given
enhancement
objective
measures
considerable
costs
involved
in
implementation
process,
evaluating
whether
regulation
is
beneficial
reducing
population
great
significance
for
enhancing
governance
efficiency
social
welfare.
The
data
from
Family
Panel
Survey
(CFPS)
applied
examine
effect
on
reduction
residents’
microscopic
perspective.
Results
results
indicate
that
1%
increase
total
investment
governance,
will
decrease
by
0.189%.
examination
causal
pathway
suggests
implementing
can
diminish
through
improving
air
quality
status.
Concurrently,
there
exist
significant
heterogeneities
role
costs.
more
pronounced
young,
males,
individuals
with
better
self-perceived
health.
Furthermore,
outcome
exhibits
greater
efficacy
urban
areas
compared
rural
areas.
Lastly,
market-incentive
effective
than
command-controlled
regulation.
Conclusions
Enhancing
intensity
contributes
decreasing
findings
provide
policy
reference
achieving
tangible
enhancements
individuals'
life
quality.
Environmental Science and Ecotechnology,
Год журнала:
2025,
Номер
24, С. 100524 - 100524
Опубликована: Янв. 11, 2025
Ground-level
ozone
concentrations
rebounded
significantly
across
China
in
2022,
challenging
air
quality
management
and
public
health.
Identifying
the
drivers
of
this
rebound
is
crucial
for
designing
effective
mitigation
strategies.
Commonly
used
methods,
such
as
chemical
transport
models
machine
learning,
provide
valuable
insights
but
face
limitations-chemical
are
computationally
intensive,
while
learning
often
fails
to
address
confounding
factors
or
establish
causality.
Here
we
show
that
elevated
temperatures
increased
solar
radiation,
primary
meteorological
drivers,
collectively
account
57
%
total
increase,
based
on
an
integrated
analysis
ground-based
monitoring
data,
satellite
observations,
reanalysis
information
using
explainable
causal
inference
techniques.
Compared
year
2021,
90
stations
reported
increase
Formaldehyde
Nitrogen
ratio,
implying
a
growing
sensitivity
formation
nitrogen
oxide
levels.
These
findings
highlight
significant
role
changes
rebound,
urging
adoption
targeted
strategies
under
climate
warming,
particularly
through
varied
regional
consider
existing
anthropogenic
emission
levels
prospective
biogenic
volatile
organic
compounds.
This
identification
relationships
pollution
dynamics
can
support
data-driven
accurate
decision-making.
International Journal of Digital Earth,
Год журнала:
2024,
Номер
17(1)
Опубликована: Фев. 2, 2024
The
air
quality
in
China
has
changed
due
to
the
implementation
of
clean
actions
since
2013.
Evaluating
spatial
pattern
PM2.5
and
effectiveness
reducing
anthropogenic
emissions
urban
nonurban
areas
is
crucial.
Therefore,
Long-term
Air
Pollutant
dataset
for
(CLAP_PM2.5)
was
generated
from
2010
2022
with
a
daily
0.1°
resolution
using
random
forest
model
integrating
multiple
data
sources,
including
extensive
in-situ
measurements,
visibility,
satellite
retrievals,
surface
upper-level
meteorological
other
ancillary
data.
CLAP_PM2.5
more
reliable
accurate
than
public
datasets.
Analysis
reveals
decrease
positive
urban-nonurban
differences
higher
decreasing
rates
most
city
clusters
eastern
China.
Furthermore,
separating
emission
contributions
variability
by
normalization
approach
indicates
that
contribution
gradually
unfavorable
reduction
during
2013–2017
favorable
decline
enhancement
2018–2022,
regions,
areas.
Overall,
deweathered
concentrations
highlights
China's
significant
achievements
terms
comprehensive
actions.
Toxics,
Год журнала:
2025,
Номер
13(5), С. 330 - 330
Опубликована: Апрель 23, 2025
Fine
particulate
matter
(PM2.5)
and
Ozone
(O3)
pollution
have
emerged
as
the
primary
environmental
challenges
in
China
recent
years.
Following
implementation
of
Air
Pollution
Prevention
Control
Action
Plan,
a
substantial
decline
PM2.5
concentrations
was
observed,
while
O3
exhibited
an
increasing
trend
across
country.
Here,
we
investigated
long-term
from
2015
to
2022
Xinxiang
City,
typical
city
within
Central
Plains
urban
agglomeration.
Our
findings
indicate
that
hourly
average
increased
by
3.41
μg
m-3
yr-1,
with
characterized
two
distinct
phases
(Phase
I,
2015-2018;
Phase
II,
2019-2022).
Interestingly,
rate
concentration
I
(7.89
m-3)
notably
higher
than
II
(2.89
m-3).
The
Random
Forest
(RF)
model
employed
identify
key
factors
influencing
during
phases.
significant
dropping
could
be
responsible
for
increase.
In
reductions
nitrogen
dioxide
(NO2)
unfavorable
meteorological
conditions
were
major
drivers
continued
increase
O3.
Observation-Based
Model
(OBM)
developed
further
explore
role
formation.
results
suggest
can
influence
chemical
sensitivity
regime
through
heterogeneous
reactions
changes
photolysis
rates.
addition,
relatively
high
City
years
underscores
its
Future
efforts
should
focus
on
joint
control
improve
air
quality
