Egyptian Journal of Chemistry,
Год журнала:
2024,
Номер
0(0), С. 0 - 0
Опубликована: Дек. 17, 2024
Air
pollution
is
the
release
of
chemicals
or
biological
matter
into
atmosphere
that
are
harmful
to
humans
other
living
creatures.
This
study
aimed
investigate
hepatic
toxicity
in
mice
exposed
air
while
residing
inside
Egyptian
company
for
aluminum
products
by
evaluating
oxidative
status,
measuring
some
heavy
metals,
and
histopathological
examination
liver
tissue.
Animals
were
divided
three
groups:
those
near
anodizing
yards,
foundries,
control
group
at
Helwan
University.
Our
showed
being
factory
a
long
time
was
linked
higher
levels
toxicity,
such
as
nitric
oxide
tissue
lower
glutathione
catalase
activity.
Simultaneously,
average
concentrations
specific
metals
(µg/m³)
measured
shown
Al
405,
Cu
20.5,
Cr
17
demonstrated
significant
increases
over
natural
level.also,
deformations.
Based
on
our
findings,
we
have
concluded
elevated
quantities
industrial
cause
stress
histological
changes.
The
studied
area
heavily
loaded
with
metals.
major
metal
suspended
particulate
aluminum,
followed
copper,
chromium,
maximum
during
autumn
winter
minimum
summer.
International Journal of Applied Earth Observation and Geoinformation,
Год журнала:
2024,
Номер
132, С. 103998 - 103998
Опубликована: Июль 10, 2024
The
emission
and
adsorption
of
mineral
elements
to
dust
from
geogenic
anthropogenic
sources
are
health
challenges
in
residential
areas.
This
study
investigated,
for
the
first
time
best
our
knowledge,
presence
potentially
toxic
(PTEs),
rare
earth
(REE)
fluorine
(F)
collected
samples
central
Iran.
Their
associated
risks
were
estimated
based
on
Monte
Carlo
simulation.
Results
show
that
morphology
was
uniform
spherical
particles
predominant
Si
Ca.
highest
concentration
PTEs
Ca
(mean:
36574
mg/kg)
Fe
30189
mean
concentrations
As,
Ni,
Pb,
Mn
Zn
exceeded
World
Health
Organization
(WHO)
guidelines,
likely
due
activities
such
as
metal
melt
factories.
Fluorine
averaged
159.4
mg/kg,
some
detected
originated
industrial
natural
sources.
5th,
50th,
95th
percentiles
Hazard
Index
(HI)
0.13,
0.43,
0.77,
respectively,
adults
1.00,
3.03,
5.99,
children.
carcinogenic
risk
(LTCR)
children
safety
range
(1
×
10−4),
their
percentile
calculated
at
about
2.03
10−4
1.83
10−4,
respectively.
Furthermore,
Ni
most
effective
LTCR.
As
a
consequence,
findings
suggest
high
potential
Iran,
especially
children,
controlling
possible
would
benefit
public
health.
Atmosphere,
Год журнала:
2025,
Номер
16(3), С. 257 - 257
Опубликована: Фев. 24, 2025
The
impact
of
PM2.5
on
the
environment
and
human
health
has
garnered
significant
attention.
While
research
composition
is
increasing,
fewer
studies
have
focused
how
dusty
conditions
in
a
special
region
affect
composition.
This
region’s
unique
environmental
conditions,
characterized
by
frequent
dust
events,
complicate
air
quality
management.
study
investigates
seasonal
distribution
inorganic
elements
under
both
non-dusty
through
systematic
sampling.
Selective
screening
methods
identified
key
pollutant
elements,
respiratory
system
model
was
developed
to
examine
their
diffusion
deposition
patterns
upper
tract.
Key
findings
reveal
that
element
concentrations
follow
consistent
trends,
with
significantly
higher
levels
during
events
compared
periods.
Crustal
are
dominated
PM2.5,
but
non-metallic
(Cl,
S)
metallic/quasi-metallic
(Mn,
Cd,
Cr,
As,
Hg)
also
prevalent,
likely
influenced
anthropogenic
activities
industrial
emissions.
By
PCA
assessments,
six
characteristic
pollutants
were
identified:
Co,
V,
Mn.
Simulations
using
COMSOL
Multiphysics
6.2
software
demonstrated
distinct
behaviors:
As
tends
concentrate
posterior
regions
tract,
while
Co
Cd
exhibit
relatively
uniform
distributions,
primarily
affecting
areas
where
airflow
slows
upstream.
Mn
show
dispersed
patterns.
Notably,
even
concentration
remains
low
different
parts
suggesting
minimal
immediate
impacts.
Our
provides
valuable
insights
into
behavior
potential
implications,
highlighting
need
for
further
effects
public
health.
Toxics,
Год журнала:
2025,
Номер
13(4), С. 291 - 291
Опубликована: Апрель 10, 2025
To
explore
the
characteristics
of
PM2.5
and
assess
health
risks
to
residents
in
Shijiazhuang
before
during
heating
period
2019,
2020
2021,
hourly
concentrations
its
nine
selected
trace
elements
were
determined.
The
results
showed
that
mass
80.32
±
50.21
μg
m-3
(2019),
69.97
41.91
(2020)
58.70
41.97
(2021)
period,
representing
greatly
improved
air
quality.
levels
1.04~1.60
times
greater
than
those
while
total
element
about
1.44~1.97
higher,
indicating
strict
control
for
should
be
imposed.
overall
hazard
quotient
(HQ)
1.08~1.42
higher
cancer
(CR)
decreased
by
29.04%
3.50%
(2021).
There
high
not
only
local
areas,
but
also
south
Hebei,
north
Henan,
southern
central
Shanxi.
increased
1.21~2.26
from
clean
heavy
pollution
levels.
leading
HQ
was
Mn,
dominant
CR
varied
As
Co.
Increases
observed,
there
even
an
inverse
change
between
further
identifying
efficient.
Natural and Engineering Sciences,
Год журнала:
2025,
Номер
10(1), С. 325 - 339
Опубликована: Апрель 1, 2025
Heavy
metals
and
PM
are
among
the
contaminants
that
coal
mining
operations
discharge
into
surroundings
in
large
quantities,
harming
human
health
environmental
pollution.
The
research
aims
to
examine
spatial
sequential
deviations
of
air
heavy
metal
deposition
regions.
Additionally,
it
determine
major
causes
pollution
evaluate
how
affected
hazards
atmosphere
public
well-being.
To
identify
sources
data
on
quality,
advanced
techniques
employed.
Over
a
specific
period,
pollutants
such
SO2,
NO2,
CO,
PM2.5
measured
at
various
locations.
Both
geographical
distribution
percentage
measured.
According
research,
main
include
wind-blown
road
dust,
active
mine
fires,
vehicle
emissions,
activities.
order
mean
concentrations
is
Fe
>
Cu
Zn
Mn
Pb
Cr
Cd
Ni
As
Hg.
There
threats
ecological
well-being
from
high
particulate
substances
hazardous
metals.
results
emphasize
quickly
strong
control
regulations
sustainable
methods
needed.
Minimizing
negative
effects
ecosystems
requires
reducing
emissions
mining,
setting
dust
measures
place,
enforcing
stronger
laws.
Scientific Reports,
Год журнала:
2024,
Номер
14(1)
Опубликована: Апрель 18, 2024
Land
transportation
is
a
major
source
of
heavy
metal
contamination
along
the
roadside,
posing
significant
risks
to
human
health
through
inhalation,
oral
ingestion,
and
dermal
contact.
Therefore,
this
study
has
been
designed
determine
concentrations
vehicular
released
metals
(Cd,
Pb,
Ni,
Cu)
in
roadside
soil
leaves
two
commonly
growing
native
plant
species
(Calotropis
procera
Nerium
oleander).Two
busy
roads
i.e.,
Lahore-Okara
road
(N-5)
Okara-Faisalabad
(OFR)
Punjab,
Pakistan,
were
selected
for
study.
The
data
collected
from
five
sites
each
during
four
seasons.
Control
samples
~
50
m
away
road.
content
i.e.
lead
(Pb),
cadmium
(Cd)
nickel
(Ni)
copper
(Cu)
determined
by
using
Atomic
Absorption
Spectrophotometer
(AAS).
Significantly
high
amount
all
studied
observed
both
contrast
control
ones.
mean
concentration
ranged
as
Cd
(2.20-6.83
mg/kg),
Pb
(4.53-15.29
Ni
(29.78-101.26
Cu
(61.68-138.46
mg/kg)
(0.093-0.53
(4.31-16.34
(4.13-16.34
(2.98-32.74
mg/kg).
Among
roads,
higher
was
noted
N-5
Significant
temporal
variations
also
roads.
order
different
seasons
summer
>
autumn
spring
winter.
Furthermore,
accumulation
potential
Calotropis
than
that
oleander.
sustainable
management
contamination,
plantation
recommended
roadsides.
