A paradigm shift: Low-cost sensors for effective air quality monitoring and management in developing countries
Muneeba Shabbir,
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Talha Saeed,
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Ammara Saleem
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et al.
Environment International,
Journal Year:
2025,
Volume and Issue:
200, P. 109521 - 109521
Published: May 10, 2025
This
study
gives
an
overview
of
the
air
quality
monitoring
challenges
faced
by
South
Asian
countries,
with
a
specific
focus
on
Pakistan,
and
explores
potential
application
low-cost
sensors
(LCS)
to
address
these
issues.
Currently,
89%
4.2
million
premature
global
deaths
attributable
ambient
pollution
occur
in
low-
middle-income
underscoring
urgent
need
for
improved
abatement
measures.
In
result
significant
public
health
economic
consequences
due
institutional
financial
constraints,
limited
data
availability,
transboundary
pollution.
The
situation
is
exacerbated
absence
effective
regulatory
network.
proposes
shift
establishing
hybrid
network
that
integrates
conventional
instruments
LCS.
current
PM2.5
scenario
major
Pakistani
cities
analyzed
using
from
61
LCSs
installed
nationwide,
one
TSI
BlueSky
sensor
validated
against
BAM
(Beta
Attenuation
Monitor)
Chakwal.
Results
show
unadjusted
values
demonstrate
strong
correlation
(Pearson
0.85)
reference
instrument,
acceptable
error
margins
(NRMSE
NMAE
8%
6%,
respectively),
indicating
sensor's
reliable
monitoring.
Though
adjusted
aligned
better,
analysis
focuses
broader
applicability.
These
findings
suggest
combining
advanced
analytics
can
serve
as
technically
economically
viable
solution
accurate
management
Pakistan
other
developing
countries
facing
similar
high
concentrations.
paradigm
enhances
capabilities
supports
informed
policy-making
initiatives.
Language: Английский
From burning to clean: how China’s heating transition reduces pollution and enhances land-use sustainability
Xinyang Jiang
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Frontiers in Environmental Science,
Journal Year:
2025,
Volume and Issue:
13
Published: June 3, 2025
Introduction
Agricultural
fires
have
posed
significant
challenges
to
environmental
governance
and
the
effective
cultivation
of
land
in
China,
prompting
government
implement
Clean
Heating
Policy
(CHP)
since
2013
as
a
key
measure
reduce
coal
consumption
promote
energy
structure
optimization.
Moreover,
growing
land-use
pressures—particularly
those
arising
from
agricultural
intensification
rural
demand—have
further
underscored
need
for
cleaner
more
sustainable
heating
strategies.
Methods
Using
county-level
data
on
PM2.5
concentrations
fire
frequencies,
this
paper
employs
staggered
Difference-in-Differences
(DID)
approach
empirical
analysis.
Results
The
results
indicate
that
CHP
significantly
reduces
by
4.8%
lowers
occurrences
17.4%,
with
findings
remaining
robust.
Further
analysis
demonstrates
air
pollution
mitigation
effect
is
primarily
concentrated
within
50
km
radius,
while
suppression
extends
up
100
km,
especially
pronounced
core
grain-producing
areas
non-resource-based
cities.
Discussion
Overall,
study
highlights
positive
role
improving
quality,
promoting
rational
resource
use,
advancing
transition.
Language: Английский