Microphysical properties of atmospheric soot and organic particles: measurements, modeling, and impacts
npj Climate and Atmospheric Science,
Год журнала:
2024,
Номер
7(1)
Опубликована: Март 8, 2024
Abstract
Atmospheric
soot
and
organic
particles
from
fossil
fuel
combustion
biomass
burning
modify
Earth’s
climate
through
their
interactions
with
solar
radiation
modifications
of
cloud
properties
by
acting
as
condensation
nuclei
ice
nucleating
particles.
Recent
advancements
in
understanding
individual
microscopic
composition
have
led
to
heightened
interest
microphysical
properties.
This
review
article
provides
an
overview
current
advanced
measurements
offers
insights
into
future
avenues
for
studying
these
To
quantify
morphology
ageing,
fractal
dimension
(
D
f
)
is
a
commonly
employed
quantitative
metric
which
allows
characterize
morphologies
aggregates
relation
ageing
factors
like
internal
mixing
state,
core-shell
structures,
phase,
heterogeneity.
Models
been
developed
incorporate
diversity
metrics
aged
particles,
enabling
assessment
optical
absorption
radiative
forcing
effects.
The
are
complex
they
influenced
particle
sources,
process,
meteorological
conditions.
Furthermore,
soluble
exhibit
diverse
forms
can
engage
liquid–liquid
phase
separation
sulfate
nitrate
components.
Primary
carbonaceous
such
tar
balls
warrant
further
attention
due
strong
light
absorbing
properties,
presence
toxic
constituents,
small
size,
impact
human
health.
Future
research
needs
include
both
atmospheric
modeling
approaches,
focusing
on
changes
the
structures
ensembles,
effects
dynamics
Язык: Английский
The Contribution of Black Carbon-Containing Particles to PM2.5: Variability, Drivers, and Impacts
Environmental Science & Technology,
Год журнала:
2025,
Номер
unknown
Опубликована: Март 7, 2025
Atmospheric
black
carbon
(BC)
particles
play
an
important
role
in
air
pollution,
climate
change,
and
human
health.
Evaluating
BC's
impacts
by
model
simulation
requires
understanding
of
the
distribution
other
aerosol
species
between
those
containing
BC
free
during
atmospheric
aging
process.
Previous
studies
observed
a
large
variability
mass
fraction
BC-containing
PM2.5
(FBC-containing),
complicating
determination
their
impacts.
In
this
work,
we
conducted
field
observations
various
polluted
environments
across
China
for
process-level
FBC-containing.
We
find
that
FBC-containing,
ranging
from
10
to
90%,
can
be
elucidated
concept
oxidation
capacity
(AOC).
The
contrast
FBC-containing
haze
events
is
determined
whether
initial
freshly
emitted
limited
daytime
AOC
levels.
quantify
parametrize
resolving
under
different
conditions,
indicating
efficient
formation
secondary
on
when
daytime-average
concentrations
Ox
(i.e.,
O3
+
NO2)
exceed
80
μg
m-3.
Our
study
provides
valuable
insights
into
mixing
state
representations
environments,
facilitating
accurate
evaluation
models.
Язык: Английский
A review of the effects of environmental photochemical processes of black carbon: mechanisms, challenges, and perspective
Process Safety and Environmental Protection,
Год журнала:
2025,
Номер
unknown, С. 106793 - 106793
Опубликована: Янв. 1, 2025
Язык: Английский
Integrating Simulations and Observations: A Foundation Model for Estimating the Aerosol Mixing State Index
ACS ES&T Air,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 10, 2025
Язык: Английский
Enhanced Aging of Black Carbon under Recent Clean Air Actions and Future Carbon Neutrality Scenario in China
Environmental Science & Technology,
Год журнала:
2024,
Номер
58(31), С. 13697 - 13706
Опубликована: Июль 18, 2024
China
has
implemented
strict
emission
control
measures,
but
it
is
unclear
how
they
affect
black
carbon
(BC)
aging
and
light
absorption.
Here,
we
use
the
Community
Atmosphere
Model
version
6
(CAM6)
with
four-mode
of
Modal
Aerosol
Module
coupled
machine
learning
(MAM4-ML)
to
simulate
BC
during
2011-2018
2050/2100
following
a
neutrality
scenario
(SSP1-2.6),
respectively.
During
2011-2018,
mass
ratio
coatings
(
Язык: Английский