Environmental Research,
Journal Year:
2023,
Volume and Issue:
243, P. 117860 - 117860
Published: Dec. 9, 2023
China
and
South
Korea
are
the
most
polluted
countries
in
East
Asia
due
to
significant
urbanization
extensive
industrial
activities.
As
neighboring
countries,
collaborative
management
plans
maximize
public
health
both
can
be
helpful
reducing
transboundary
air
pollution.
To
support
such
planning,
PM2.5
inorganic
organic
species
were
determined
simultaneously
collected
integrated
filters.
The
resulting
data
used
as
inputs
positive
matrix
factorization,
which
identified
nine
sources
at
ambient
monitoring
sites
sites.
Secondary
nitrate,
secondary
sulfate/oil
combustion,
soil,
mobile,
incinerator,
biomass
burning,
carbon
(SOC)
found
sampling
Industry
I
II
only
Seoul,
whereas
combustion
road
dust
Beijing.
A
subset
of
samples
was
selected
for
exposure
assessment.
expression
levels
IL-8
significantly
higher
Beijing
(167.7
pg/mL)
than
Seoul
(72.7
pg/mL).
associations
between
chemical
constituents
its
contributing
with
PM2.5-induced
inflammatory
cytokine
(interleukin-8,
IL-8)
human
bronchial
epithelial
cells
investigated.
For
soil
followed
by
nitrate
burning
showed
increase
production.
However,
Beijing,
exhibited
highest
association
production
SOC
modest
IL-8.
one
cities,
an
source
having
strongest
a
This
study
provide
scientific
basis
identifying
prioritized
control
effective
mitigation
particulate
pollution
each
city
thereby
improve
health.
Journal of Geophysical Research Atmospheres,
Journal Year:
2024,
Volume and Issue:
129(11)
Published: June 1, 2024
Abstract
Fungal
aerosols,
as
significant
biocomponents
of
inhalable
particulate
matter,
encompass
a
variety
allergens
and
pathogens.
However,
comprehensive
knowledge
regarding
their
composition,
sources,
opportunistic
pathogens
present
in
severe
air
pollution
remains
limited.
In
this
study,
PM
2.5
samples
were
collected
from
January
to
March
2018
northern
Chinese
city,
during
the
winter
heating
spring
sandstorm
seasons.
The
fungal
community
characteristics
within
three
distinct
haze
haze‐dust
composite
examined.
concentration
aerosols
was
found
be
significantly
higher
dust
samples.
This
evidenced
by
strong
positive
correlation
with
Ca
2+
,
temperature,
wind
speed
(
p
<
0.05).
Human
animal
pathogens,
such
Candida
more
prevalent
Conversely,
plant
like
Alternaria
primary
ecological
function
shifted
being
saprophytic
becoming
human‐animal
pathogenic
or
plant‐animal
pathogenic.
shift
observed
non‐pollution,
haze,
pollution.
dispersion
influenced
factors
events
meteorological
conditions,
including
increased
temperature
speed.
episodes,
dust‐related
pollutants,
soil
10
accounted
for
51.39%
variation
community.
research
explored
dynamics
communities,
potential
influencing
communities
regional
insights
garnered
provide
robust
foundation
subsequent
human
health
exposure
assessments.
