Buildings,
Год журнала:
2025,
Номер
15(6), С. 874 - 874
Опубликована: Март 11, 2025
The
large-scale
use
of
air-conditioning
equipment,
while
providing
a
comfortable
living
environment,
has
also
brought
about
series
problems.
This
study
focuses
on
the
growth
and
reproduction
Staphylococcus
aureus
surface
activated
carbon
in
filtration
systems.
Experimental
data
were
obtained
under
temperature
conditions
20
°C
30
relative
humidity
10%,
50%,
75%
RH.
Based
experimental
data,
mathematical
model
was
established
to
predict
aureus.
Logistic
Gompertz
equations
used
fit
curves
different
conditions,
two
models,
commonly
for
simulating
microbial
curves,
compared.
with
best
selected
amount
aureus,
some
guidance
actual
lifespan
adsorbent
filters.
Aerosol Science and Technology,
Год журнала:
2024,
Номер
58(3), С. 217 - 243
Опубликована: Фев. 16, 2024
As
COVID-19
swept
across
the
globe,
increased
ventilation
and
implementation
of
air
cleaning
were
emphasized
by
US
CDC
WHO
as
important
strategies
to
reduce
risk
inhalation
exposure
virus.
To
assess
whether
higher
rates
lead
lower
SARS-CoV-2,
1274
manuscripts
published
between
April
2020
September
2022
screened
using
key
words
"airborne
SARS-CoV-2
or
"SARS-CoV-2
aerosol."
Ninety-three
studies
involved
sampling
at
locations
with
known
sources
(hospitals
residences)
selected
associated
data
compiled.
Two
metrics
used
risk:
concentration
detection
rate
in
samples.
Locations
categorized
type
(hospital
residence)
proximity
location
housing
isolated/quarantined
patient
(primary
secondary).
The
results
showed
that
hospital
wards
had
airborne
virus
concentrations
than
residential
isolation
rooms.
A
negative
correlation
was
found
primary-occupancy
areas
changes
per
hour
(ACH).
In
settings,
sample
positivity
significantly
reduced
secondary-occupancy
compared
areas,
but
they
similar
settings.
ACH
negatively
correlated,
though
effect
diminished
when
values
exceeded
8.
While
limitations
diverse
protocols
exist,
considered
this
meta-analysis
support
notion
may
risks
ambient
air.
The Science of The Total Environment,
Год журнала:
2024,
Номер
927, С. 172278 - 172278
Опубликована: Апрель 5, 2024
The
Wells-Riley
model
is
extensively
used
for
retrospective
and
prospective
modelling
of
the
risk
airborne
transmission
infection
in
indoor
spaces.
It
also
when
examining
efficacy
various
removal
deactivation
methods
infectious
aerosols
environment,
which
crucial
selecting
most
effective
control
technologies.
problem
that
large
variation
viral
load
between
individuals
makes
output
very
sensitive
to
input
parameters
may
yield
a
flawed
prediction
risk.
absolute
estimated
with
this
can
range
from
nearly
0
%
100
depending
on
load,
even
all
other
factors,
such
as
mechanisms
room
geometry,
remain
unchanged.
We
therefore
propose
novel
method
removes
sensitivity
load.
define
quanta-independent
maximum
before-after
difference
independent
quanta
factors
like
physical
activity,
or
dose-response
relationships.
data
needed
non-steady-state
calculation
are
just
rates,
volume,
occupancy
duration.
Under
steady-state
conditions
approach
provides
an
elegant
solution
only
dependent
before
after
applying
measures.
applied
compare
impact
relative
humidity,
ventilation
rate
its
effectiveness,
filtering
efficiency,
use
ultraviolet
germicidal
irradiation
results
demonstrate
comprehensive
understanding
strategies
infection,
enabling
rational
decisions
be
made
regarding
specific
context.
proposed
thus
practical
tool
mitigation
Journal of Occupational and Environmental Hygiene,
Год журнала:
2025,
Номер
unknown, С. 1 - 13
Опубликована: Янв. 17, 2025
The
pathogenic
potential
of
airborne
particles
carrying
the
SARS-CoV-2
viral
genome
was
examined
by
considering
size
distribution
at
given
distances
from
respiratory
zone
an
infected
patient
after
coughing
or
sneezing
with
a
focus
on
time,
temperature,
and
relative
humidity.
results
show
association
between
particles,
particularly
PM1
PM2.5,
presence
in
different
stations
affected
distance
passage
time.
correlation
time
strong
all
dependent
factors
except
PM1.
Also,
effect
intervals
median
concentration
PM
range
PM7
PM10
significant.
Accordingly,
first
20
min
coughing,
COVID-19
more
likely
to
be
exposed
PM-carrying
RNA
genomes
SARS-CoV-2.
other
finding
that
two
0.25
m
patient's
left
1.0
above
breathing
showed
positive
for
studied
intervals.
patterns
suggested
there
high
virus
based
position
airflow
severity
infection
load
may
influence
droplets
when
coughing.
Based
results,
one
can
conclude
ventilation
plays
key
role
mitigating
risk
transmission
indoor
environments,
it
has
been
shown
reductions
particulate
concentrations
occur
portable
air
purifiers
are
placed
near
zone.
use
personal
protective
equipment
healthcare
personnel
minimize
is
recommended.
Buildings,
Год журнала:
2025,
Номер
15(6), С. 874 - 874
Опубликована: Март 11, 2025
The
large-scale
use
of
air-conditioning
equipment,
while
providing
a
comfortable
living
environment,
has
also
brought
about
series
problems.
This
study
focuses
on
the
growth
and
reproduction
Staphylococcus
aureus
surface
activated
carbon
in
filtration
systems.
Experimental
data
were
obtained
under
temperature
conditions
20
°C
30
relative
humidity
10%,
50%,
75%
RH.
Based
experimental
data,
mathematical
model
was
established
to
predict
aureus.
Logistic
Gompertz
equations
used
fit
curves
different
conditions,
two
models,
commonly
for
simulating
microbial
curves,
compared.
with
best
selected
amount
aureus,
some
guidance
actual
lifespan
adsorbent
filters.
