Building and Environment,
Год журнала:
2024,
Номер
255, С. 111442 - 111442
Опубликована: Март 25, 2024
The
impact
of
indoor
air
quality
on
human
health
is
gaining
importance
as
people
spend
90%
their
time
indoors.
It
has
been
established
that
occupancy
a
significant
contributor
to
Volatile
Organic
Compound
(VOC)
concentrations
and
concern
regarding
occupant
health,
yet
VOC
emissions
remain
largely
uncharacterised.
In
the
current
study,
we
review
recent
research
examines
contributions
humans
profile
in
occupied
spaces,
with
focus
study
characteristics.
This
investigation
identified
hierarchy
factors
contributing
inter-study
variations
biogenic
(HVOC)
levels
measured
We
found
variation
reported
HVOC
are
related
sampling
techniques
used,
test
conditions,
sample
analysis.
Contrasting
findings
issues
such
effect
nutrition
smoking
discussed.
Conclusions
were
reached
about
advancements
nature
results
need
use
larger
datasets,
recommendations
global
guidelines
future
testing
have
made.
advocate
for
unified
approach
studies,
promoting
more
coordinated
data
collection
reporting
fostering
development
impactful
applications.
Urban Water Journal,
Год журнала:
2024,
Номер
21(3), С. 380 - 392
Опубликована: Янв. 12, 2024
In
late
December
2019,
a
novel
coronavirus,
COVID
−19
originated
in
Wuhan
city
of
China,
and
significant
improvement
not
only
the
air
quality
but
also
water
quality.
Therefore,
current
study
demonstrates
changes
parameters
Ghaggar
river,
Punjab,
India.
The
variations
river
have
been
examined
during
pre-,
during,
post-pandemic
periods.
maximum
temperature
for
all
monitoring
stations
was
between
28
to
37°C
pandemic
period,
whereas
dissolved
oxygen
value
varied
from
3
7
mg/L.
pH
obtained
reported
be
7.7
8.0,
except
chhatbir
station
(7.6).
biochemical
demand
found
18–53
Strong
positive
correlations
were
observed
total
coliform
fecal
pre
(0.76)
(0.89)
Similar
recorded
BOD
conductivity
(0.75)
(0.58)
Case Studies in Chemical and Environmental Engineering,
Год журнала:
2023,
Номер
8, С. 100417 - 100417
Опубликована: Июль 7, 2023
In
December
2019,
a
novel
coronavirus
disease
(COVID-19)
outbreak
occurred
due
to
human
respiratory
virus
that
originated
in
the
city
of
Wuhan,
China.
During
COVID-19
lockdown,
there
was
significant
improvement
air
quality
across
world.
We
analyzed
data
for
BTEX
over
three
years
(January
2019
2021)
with
pairwise
comparison
and
trend
analysis
pre-,
during,
post-pandemic
periods.
This
study
demonstrates
substantial
changes
concentration
VOCs
urban
area
(Punjab)
lockdown
effects.
The
results
indicate
reduction
mean
TVOCs
all
monitoring
stations
found
be
8.89
±
1.80,
5.59
1.71,
5.57
1.43
μg/m3
before,
post-pandemic,
respectively.
level
declined
by
−43%
during
period
compared
previous
years.
A
higher
T/B
ratio
Patiala
(2.97
μg/m3)
before
pandemic,
which
may
vehicle
emission
sources.
LCR
values
benzene
were
children
than
males
females,
indicated
possible
risk.
exceeded
prescribed
value
CPCB
children.
Toxics,
Год журнала:
2023,
Номер
11(9), С. 748 - 748
Опубликована: Сен. 2, 2023
This
study
examines
the
levels
of
benzene
and
potential
health
impact
during
three
years
continuous
monitoring
(2019–2021),
including
COVID-lockdown
period
from
2020
in
a
city
that
is
an
important
Romanian
center
for
petroleum
refining
associated
product
manufacturing.
The
dataset
contains
benzene,
toluene,
NOx,
PM10
concentrations,
meteorological
factors
monitored
by
six
automatic
stations
national
network
which
four
are
two
outside.
Special
attention
was
given
to
dynamics
establish
patterns
related
leukemia.
An
assessment
exposure
performed
using
EPA’s
ExpoFIRST
v.
2.0
computing
inhalation
Average
Daily
Dose
(ADD)
Lifetime
(LADD).
estimated
based
on
several
indicators
such
as
lifetime
cancer
risk
(LCR),
Hazard
Quotient
(HQ),
Disability-Adjusted
Life
Years
(DALY),
Environmental
burden
disease
(EBD).
Overall,
annual
average
all
almost
similar
between
i.e.,
3.46
2019,
3.41
2020,
3.63
µg/m3
2021,
respectively.
lockdown
2.67
µg/m3,
lower
than
multiannual
2019–2021
period,
3.5
µg/m3.
Significant
correlations
were
present
other
pollutants
NOx
(r
=
0.57),
fraction
0.70),
toluene
0.69),
temperature
−0.46),
humidity
0.28),
wind
speed
−0.34).
Regarding
ADD,
scenarios,
most
affected
age
categories
small
children,
despite
outdoor
time.
From
birth
<70
years,
ADD
varied
depending
scenario
resulting
3.27
×
10−4,
5.6
4.04
104
mg/kg-day,
3.95
10.6
6.76
10−4
mg/kg-day
LADD,
Integrated
Cancer
Risk
(ILTCR)
values
14.1
10−5
winter,
9.04
spring,
8.74
summer,
autumn.
ILTCR
averages
1.08
(2019),
1.07
(2020),
1.04
(2021),
1.06
entire
period.
point
out
very
risky
conditions,
with
reaching
definite
category.
corresponding
DALY’s
loss
due
leukemia
Ploieşti
at
0.291
(2
μg/m3
benzene),
0.509
(3.5
0.582
(4
0.873
DALYs
per
100,000
inhabitants
(6
current
provides
useful
insights
better
understanding
limitations
determined
data
hiatus
incomplete
or
missing
information
regarding
impact.
