Identification of Causes of Air Pollution in the Specific Industrial Part of the Czech City of Ostrava in Central Europe
Опубликована: Янв. 4, 2024
This
contribution
deals
with
the
assessment
of
air
pollution
caused
by
atmospheric
aerosol
particulate
matter
fraction
PM10
and
benzo[a]pyrene
(BaP)
in
urban
agglomeration
Ostrava,
located
Czech
Republic
Central
Europe.
The
motivation
for
this
research
was
need
to
identify
sources
area,
particularly
locations
where
different
concentrations
pollutants
concern
has
not
been
elucidated
yet.
In
study,
source
apportionment
vicinity
industrial
hot-spot
performed
statistically
evaluating
measured
pollutant
as
a
function
meteorological
variables
using
Positive
Matrix
Factorization
(PMF)
receptor
model.
A
significant
methodological
innovation
improvement
over
previous
assessments
higher
monitoring
resolution
benzo[a]pyrene,
samples
collected
at
three-hour
intervals
instead
standard
24-hour
collection
period.
key
findings
indicate
that
cold
part
year,
secondary
particles
-
specifically
sulphates
ammonium
nitrates
were
responsible
most
portion
throughout
area
interest.
these
ranged
from
one
third
two
fifths
total
concentration,
except
site
Ostrava-Radvanice
(TORE),
they
accounted
approximately
fifth
concentration
level.
Emissions
individual
household
heating
identified
main
type
pollution.
With
regards
pollution,
study
found
whole
interest,
site,
it
mainly
originated
coal
(90%).
contrast,
two-thirds
came
premises
Liberty
Ostrava
a.s.,
primarily
coke
production,
less
than
one-third
local
domestic
heating.
also
determined
spatial
extent
occurrence
extremely
high
(above
5
ng/m3),
which
are
estimated
affect
nearly
10,000
inhabitants.
results
confirm
data
TORE
station
only
representative
its
immediate
surroundings
applicable
quality
causes
city
or
whole.
After
years
research,
provide
Ministry
Environment
government
an
accurate
basis
implementing
measures
address
success
made
possible
adoption
more
detailed
sampling
approach,
involved
3
hours
24
hours.
is
finding
will
be
useful
future
studies.
Язык: Английский
Varying Performance of Low-Cost Sensors During Seasonal Smog Events in Moravian-Silesian Region
Atmosphere,
Год журнала:
2024,
Номер
15(11), С. 1326 - 1326
Опубликована: Ноя. 3, 2024
Air
pollution
monitoring
in
industrial
regions
like
Moravia-Silesia
faces
challenges
due
to
complex
environmental
conditions.
Low-cost
sensors
offer
a
promising,
cost-effective
alternative
for
supplementing
data
from
regulatory-grade
air
quality
stations.
This
study
evaluates
the
accuracy
and
reliability
of
prototype
node
containing
low-cost
carbon
monoxide
(CO)
particulate
matter
(PM),
specifically
tailored
local
conditions
Moravian-Silesian
Region
during
winter
spring
periods.
An
analysis
reference
observed
evaluation
period
showed
strong
positive
correlation
between
PM,
CO,
NO2
concentrations,
attributable
common
sources
under
low
ambient
temperature
increased
heating
activity.
The
Sensirion
SPS30
sensor
exhibited
high
linearity
but
systematic
bias
PM10
readings
Polish
smog
episodes,
likely
fine
particles
domestic
heating.
Conversely,
Saharan
dust
storm
negative
bias,
underestimating
levels
prevalence
coarse
particles.
Calibration
adjustments,
based
on
PM1/PM10
ratio
derived
Alphasense
OPC-N3
data,
were
initially
explored
reduce
these
biases.
For
first
time,
this
quantifies
influence
particle
size
distribution
sensor’s
response
episodes
varying
origin,
given
seasonal
In
addition
evaluation,
we
analyzed
potential
use
Copernicus
Atmospheric
Monitoring
Service
(CAMS)
as
an
increasing
complexity.
Our
findings
suggest
that,
with
appropriate
calibration,
selected
can
provide
reliable
may
also
be
used
future
adjustments
CAMS
model
predictions.
Язык: Английский