Atmospheric chemistry and physics,
Journal Year:
2021,
Volume and Issue:
21(9), P. 7253 - 7269
Published: May 12, 2021
Abstract.
Ground-level
ozone
(O3)
pollution
has
been
steadily
getting
worse
in
most
parts
of
eastern
China
during
the
past
5
years.
The
non-linearity
O3
formation
with
its
precursors
like
nitrogen
oxides
(NOx=
NO
+
NO2)
and
volatile
organic
compounds
(VOCs)
are
complicating
effective
abatement
plans.
diagnosis
from
space-based
observations,
i.e.
ratio
formaldehyde
(HCHO)
columns
to
tropospheric
NO2
(HCHO
/
NO2),
previously
proved
be
highly
consistent
our
current
understanding
surface
chemistry.
HCHO
thresholds
distinguishing
sensitivity
depend
on
regions
chemistry
interactions
aerosol.
To
shed
more
light
over
China,
we
have
derived
by
directly
connecting
satellite-based
observations
ground-based
measurements
major
Chinese
cities
this
study.
We
find
that
a
VOC-limited
regime
occurs
for
<
2.3,
NOx-limited
>
4.2.
between
2.3
4.2
reflects
transition
two
regimes.
Our
method
shows
tends
urban
areas
rural
remote
China.
there
is
shift
some
transitional
associated
rapid
drop
anthropogenic
NOx
emissions,
owing
widely
applied
rigorous
emission
control
strategies
2016
2019.
This
detected
spatial
expansion
supported
rising
concentrations.
enhanced
concentrations
COVID-19
lockdown
indicate
protocol
simultaneous
emissions
VOC
controls
essential
The Science of The Total Environment,
Journal Year:
2020,
Volume and Issue:
738, P. 139825 - 139825
Published: June 2, 2020
The
novel
coronavirus
disease
(COVID-19)
is
a
highly
pathogenic,
transmittable
and
invasive
pneumococcal
caused
by
Severe
Acute
Respiratory
Syndrome
Coronavirus
2
(SARS-CoV-2),
which
emerged
in
December
2019
January
2020
Wuhan
city,
Hubei
province,
China
fast
spread
later
on
the
middle
of
February
Northern
part
Italy
Europe.
This
study
investigates
correlation
between
degree
accelerated
diffusion
lethality
COVID-19
surface
air
pollution
Milan
metropolitan
area,
Lombardy
region,
Italy.
Daily
average
concentrations
inhalable
particulate
matter
(PM)
two
size
fractions
PM2.5,
PM10
maxima
ground
level
atmospheric
pollutants
together
quality
climate
variables
(daily
temperature,
relative
humidity,
wind
speed,
pressure
field
Planetary
Boundary
Layer-PBL
height)
collected
during
1
January–30
April
were
analyzed.
In
spite
being
considered
primarily
transmitted
indoor
bioaerosols
droplets
infected
surfaces,
or
direct
human-to-human
personal
contacts,
it
seems
that
high
levels
urban
pollution,
weather
specific
conditions
have
significant
impact
increased
rates
confirmed
Total
number,
New
Deaths
cases,
possible
attributed
not
only
to
but
also
outdoor
airborne
distribution.
Our
analysis
demonstrates
strong
influence
daily
averaged
concentrations,
positively
associated
with
temperature
inversely
related
humidity
cases
outbreak
Milan.
Being
pandemic
(SARS-CoV-2)
version,
might
be
ongoing
summer
higher
temperatures
low
levels.
Presently
clear
if
this
protein
"spike"
new
involved
through
attachment
mechanisms
aerosols
infectious
agent
transmission
from
reservoir
susceptible
host
some
agglomerated
areas
like
is.
The Science of The Total Environment,
Journal Year:
2020,
Volume and Issue:
741, P. 140353 - 140353
Published: June 20, 2020
During
the
months
of
March
and
April
2020
we
witnessed
largest-scale
experiment
in
history
terms
air
quality
cities.
Any
prediction
this
experiment's
results
may
be
obvious
to
science,
as
it
was
totally
expected,
has
improved
substantially.
Simply
stated,
comes
no
surprise.
The
lockdown
made
possible
quantify
limit
decrease
pollution
light
drastic
reduction
traffic,
Madrid
Barcelona
showed
a
significant
order
75%.
In
case
Spain's
two
largest
cities,
reductions
NO2
concentrations
were
62%
50%,
respectively.
Hourly
measurements
obtained
from
24
9
stations
monitoring
networks
during
month
2020.
These
allow
us
see
limits
that
can
achieved
by
implementing
low
emission
zones
(LEZ),
well
amount
contamination
must
eliminated,
which
cases
Barcelona,
represent
55%.
This
value
defines
levels
effort
scope
actions
taken
ensure
both
cities
achieve
clean
healthy
atmosphere
NO2.
The Science of The Total Environment,
Journal Year:
2020,
Volume and Issue:
745, P. 141022 - 141022
Published: July 17, 2020
The
current
Coronavirus
infection
(COVID-19)
outbreak
has
had
a
substantial
impact
on
many
aspects
of
general
life.
Although
number
studies
have
been
published
the
topic
already,
there
not
critical
review
impacts
COVID-19
by
and
environmental
factors.
study
fills
this
gap
presenting
analysis
57
nexus
between
environment,
in
nine
journals
up
to
May
2020.
Majority
our
sample
are
Science
Total
Environment
(74%),
used
mostly
descriptive
statistics
regression
as
research
methods.
We
identified
four
underlying
clusters
based
systematic
content
studies.
are:
(1)
degradation,
(2)
air
pollution,
(3)
climate/metrological
factors
(4)
temperature.
Besides
each
cluster,
we
propose
questions
guide
future
relationship
environment.
