Atmospheric chemistry and physics,
Journal Year:
2023,
Volume and Issue:
23(24), P. 15445 - 15453
Published: Dec. 18, 2023
Abstract.
Paul
Jozef
Crutzen
was
a
pioneer
in
the
atmospheric
sciences,
kind-hearted
and
humorous
person
with
empathy
for
private
lives
of
his
colleagues
students,
man
who
upheld
highest
scientific
standards
himself
others.
He
made
fundamental
contributions
to
wide
range
topics
all
parts
atmosphere,
from
mesosphere
stratosphere
troposphere.
In
particular,
he
first
describe
NOx-driven
ozone
depletion
cycle
stratosphere,
among
develop
idea
chemical
formation
troposphere,
provided
key
concepts
explain
“ozone
hole”,
discoveries
about
effects
biomass
burning
on
Understanding
addressing
causes
anthropogenic
air
pollution
climate
change
were
driving
motivations
work.
work,
did
not
shy
away
challenge
provocation.
His
work
smoke
fires
after
potential
nuclear
war
inspired
new
research
concept
now
known
as
“nuclear
winter”.
also
initiated
reopening
debate
“geoengineering”
–
referred
“climate
intervention”.
brought
term
“Anthropocene”
popular
debate.
Moreover,
had
strong
influence
science
through
educational
role;
there
is
very
large
number
outstanding
scientists
started
their
career
Paul.
2000,
founders
journal
Atmospheric
Chemistry
Physics,
which
unique
at
time
providing
public
discussion
published
preprints
well
what
we
call
“open
access”
articles.
Paul's
human
impacts
atmosphere
has
profound
impact
environmental
policies
many
countries
decades.
future,
will
continue
be
guide
generations
policymakers
come.
Chemical Reviews,
Journal Year:
2024,
Volume and Issue:
124(9), P. 5764 - 5794
Published: April 23, 2024
Atmospheric
chemists
have
historically
treated
leaves
as
inert
surfaces
that
merely
emit
volatile
hydrocarbons.
However,
a
growing
body
of
evidence
suggests
are
ubiquitous
substrates
for
multiphase
reactions-implying
the
presence
chemicals
on
their
surfaces.
This
Review
provides
an
overview
chemistry
and
reactivity
leaf
surface's
"chemical
landscape",
dynamic
ensemble
compounds
covering
plant
leaves.
We
classified
endogenous
(originating
from
its
biome)
or
exogenous
(delivered
environment),
highlighting
biological,
geographical,
meteorological
factors
driving
contributions.
Based
available
data,
we
predicted
≫2
μg
cm
Atmospheric chemistry and physics,
Journal Year:
2024,
Volume and Issue:
24(6), P. 3445 - 3528
Published: March 20, 2024
Abstract.
Adsorption
and
desorption
of
gases
on
liquid
or
solid
substrates
are
involved
in
multiphase
processes
heterogeneous
chemical
reactions.
The
energy
(Edes0),
which
depends
the
intermolecular
forces
between
adsorbate
substrate,
determines
residence
time
species
at
interfaces.
We
show
how
Edes0
temperature
influence
net
uptake
release
gas
species,
rates
surface–bulk
exchange
surface
bulk
reactions,
equilibration
timescales
gas–particle
partitioning.
Using
literature
data,
we
derive
a
parameterization
to
estimate
for
wide
range
based
molecular
mass,
polarizability,
oxygen-to-carbon
ratio
desorbing
independent
substrate-specific
properties,
is
possible
because
dominant
role
species'
properties.
Correlations
enthalpies
vaporization
solvation
rooted
interactions.
relation
kinetics
reflects
key
interfacial
processes.
For
small
molecules
semi-volatile
organics
(VOC,
IVOC,
SVOC),
values
around
10–100
kJ
mol−1
correspond
lifetimes
nanoseconds
days
room
temperature.
Even
higher
up
years
obtained
low
temperatures
volatile
organic
compounds
(LVOC,
ELVOC/ULVOC)
relevant
secondary
aerosols
(SOA).
Implications
discussed
SOA
formation,
partitioning,
phase
changes,
indoor
chemistry.
expect
these
insights
advance
mechanistic
kinetic
understanding
atmospheric
environmental
physical
chemistry,
aerosol
science,
materials
engineering.
Environmental Science & Technology,
Journal Year:
2024,
Volume and Issue:
58(14), P. 6071 - 6076
Published: March 29, 2024
The
atmospheric
oxidizing
capacity
is
the
most
important
driving
force
for
chemical
transformation
of
pollutants
in
atmosphere.
Traditionally,
mainly
depends
on
concentration
O3
and
other
gaseous
oxidants.
However,
based
gas-phase
oxidation
cannot
accurately
describe
explosive
growth
secondary
particulate
matter
under
complex
air
pollution.
From
perspective,
comes
from
activation
O2,
which
can
be
achieved
both
interfacial
processes.
In
heterogeneous
or
multiphase
formation
pathways
matter,
enhancement
ascribed
to
O2/H2O-involved
hydrolysis
processes
an
unrecognized
source
capacity.
Revealing
enhanced
due
high-concentration
environments
its
contribution
pollution
are
critical
understanding
haze
chemistry.
accurate
evaluation
also
scientific
basis
implementation
PM2.5
collaborative
control
China
around
world.
One Earth,
Journal Year:
2024,
Volume and Issue:
7(6), P. 1082 - 1095
Published: June 1, 2024
Aerosols
in
the
atmosphere
are
effective
microreactors
for
aqueous
reactions
converting
primary
pollutants
to
secondary
fine
particulate
matter
(PM2.5).
These
believed
scale
with
volume
of
water,
such
as
water
deliquesced
urban
aerosols.
Here,
using
single-particle
Raman
spectroscopy,
we
mapped
scaling
law
conversion
rate
sulfite
microdroplets,
a
key
reaction
producing
sulfate
PM2.5
and
driving
formation
China's
haze.
We
show
that,
droplets
below
approximately
100
μm,
this
scales
not
volume,
but
droplet
surface
area,
owing
kinetic
acceleration
at
air-water
interface.
Therefore,
when
linearly
extrapolating
rates
aerosol
air-quality
models
may
inaccurately
predict
rates.
predictions
likely
underpredictions,
if
adopt
parameters
measured
from
laboratory
systems,
i.e.,
bulk
solutions,
surface-area-to-volume
ratio
much
smaller
than
atmospheric
Biomass
burning
organic
aerosol
(BBOA),
containing
brown
carbon
chromophores,
plays
a
critical
role
in
atmospheric
chemistry
and
climate
forcing.
However,
the
effects
of
evaporation
on
BBOA
volatility
viscosity
under
different
environmental
conditions
remain
poorly
understood.
This
study
focuses
molecular
characterization
laboratory-generated
proxies
from
wood
pyrolysis
emissions.
The
initial
mixture,
"pyrolysis
oil
(PO
Chemical Physics Reviews,
Journal Year:
2025,
Volume and Issue:
6(1)
Published: March 1, 2025
Surfaces
and
interfaces
play
key
roles
in
chemical
material
science.
Understanding
physical
processes
at
complex
surfaces
is
a
challenging
task.
Machine
learning
provides
powerful
tool
to
help
analyze
accelerate
simulations.
This
comprehensive
review
affords
an
overview
of
the
applications
machine
study
systems
materials.
We
categorize
into
following
broad
categories:
solid–solid
interface,
solid–liquid
liquid–liquid
surface
solid,
liquid,
three-phase
interfaces.
High-throughput
screening,
combined
first-principles
calculations,
force
field
accelerated
molecular
dynamics
simulations
are
used
rational
design
such
as
all-solid-state
batteries,
solar
cells,
heterogeneous
catalysis.
detailed
information
on
for
Nitrous
acid
(HONO)
and
ozone
(O3)
are
two
important
indoor
pollutants
that
affect
the
oxidation
capacity.
Previous
field
studies
have
observed
an
inverse
correlation
between
these
indoors,
but
specific
mechanism
remains
unclear.
Given
semivolatile
behavior
of
HONO,
a
possible
is
its
multiphase
reaction
with
ozone.
In
this
study,
we
measured
uptake
on
surface
HONO/NO2-
under
environmentally
relevant
conditions
in
flow
tube.
The
deposition
velocities
(vd
=
0.002
±
0.001-0.3
0.005
cm
s-1)
coefficients
(γ
(0.2
0.1)
×
10-6-(2.0
0.2)
10-4)
depend
reactant
concentrations,
relative
humidity,
time
less
affected
by
illumination.
lifetimes
gaseous
HONO
approximately
10
min
due
to
conditions,
which
significant
sink
for
O3
as
compared
those
other
reactions
air
exchange.
This
study
first
revealed
previously
overlooked
vital
role
affecting
both
has
significance
understanding
chemistry
O3,
implications
outdoor
surfaces
model
better
constrain
sinks.
