Environmental Pollution,
Journal Year:
2024,
Volume and Issue:
361, P. 124629 - 124629
Published: July 27, 2024
The
global
apprehension
regarding
the
ubiquitous
presence
of
microplastics
(MPs)
and
their
associated
health
risks
underscore
a
significant
challenge.
However,
our
understanding
on
occurrence
characteristics
this
emerging
class
pollutants
in
different
environmental
compartments
remains
limited.
For
instance,
despite
housing
approximately
20-25%
population,
evidence
atmospheric
MPs
Indian
Subcontinent
is
exceedingly
rare.
Hence,
we
for
first-time
present
data
depositional
flux,
chemical
composition,
morphological
features
collected
from
foothills
Himalayas.
total
number
samples
ranged
65
to
752
particles,
with
an
average
317
±
171
particles
count.
flux
was
2256
1221
particles/m
Environmental Science & Technology,
Journal Year:
2024,
Volume and Issue:
58(8), P. 3702 - 3713
Published: Feb. 15, 2024
Microplastics
are
found
in
various
human
tissues
and
considered
harmful,
raising
concerns
about
exposure
to
microplastics
the
environment.
Existing
research
has
analyzed
indoor
occupational
scenarios,
but
long-term
monitoring
of
ambient
atmospheric
(AMPs),
especially
highly
polluted
urban
regions,
needs
be
further
investigated.
This
study
estimated
environmental
AMPs
by
considering
inhalation,
dust
ingestion,
dermal
three
functional
zones
within
a
megacity.
The
annual
quantity
was
7.37
×
104
items
for
children
1.06
105
adults,
comparable
with
microplastic
consumption
from
food
water.
Significant
spatiotemporal
differences
were
observed
characteristics
that
humans
exposed
to,
wind
speed
rainfall
frequency
mainly
driving
these
changes.
AMP
green
land
spaces,
which
recognized
as
relatively
low
zones,
public
service
residential
zones.
Notably,
significant
positive
correlations
between
pathogenicity
airborne
bacterial
community
discovered.
size
immune-mediated
disease
risks
brought
microbes
showed
most
relationship,
where
Sphingomonas
might
act
potential
key
mediator.
Earth-Science Reviews,
Journal Year:
2024,
Volume and Issue:
255, P. 104864 - 104864
Published: July 10, 2024
Microplastics
(MPs),
particles
with
a
size
<5
mm,
are
ubiquitous
in
water,
soil,
and
atmosphere,
have
become
highly
discussed
environmental
issue.
Although
atmospheric
MPs
received
less
attention
than
soil
their
possible
consequences
being
examined
more
depth.
This
study
systematically
reviews
the
sources,
transport,
distribution,
variations
of
MPs,
interactions
other
pollutants
environment
impact
on
human
health
based
literature.
The
results
show
that
been
identified
diverse
settings
such
as
urban,
sub-urban,
remote
areas
well
indoor
air.
These
airborne
can
originate
from
terrestrial
sources
like
landfills,
synthetic
clothing,
plastic
manufacturing,
use
recycling
activities,
aquatic
resulting
bubble
bursting.
outdoor
MP
abundance
was
detected
range
2
to
1159
MP/m2/day
depositions
0
224
MP/m3
suspended
samples,
while
significantly
higher
observed
indoors
ranging
22
760,000
0.4
1583
MP/m3.
distribution
characteristics
affected
by
several
factors
urbanization,
anthropogenic
environments
seasons.
Atmospheric
transport
occurs
through
suspension,
horizontal
deposition
processes
greatly
influenced
morphology
MP,
wind
speed
direction,
precipitation
factors.
path
atmosphere
is
studied
Lagrangian
models
conducting
backward
trajectory
simulations
estimate
linear
trajectories
at
sampling
locations
discern
potential
origin
travel
distance.
also
interact
variety
chemical
microorganisms
thus
act
vector
for
pollutant
transport.
toxicity
may
be
increased
release
pathogens
contaminants
into
environment,
thereby
increasing
risk
humans.
Based
study,
it
suggested
further
scientific
research
should
focus
standardization
methods,
mechanisms,
ecological
impacts.
As
could
enter
body
various
urgent
physiological
effects
when
exposed
pollution.
Environmental Science & Technology,
Journal Year:
2024,
Volume and Issue:
58(21), P. 9071 - 9081
Published: May 15, 2024
Little
research
exists
on
the
magnitude,
variability,
and
uncertainty
of
human
exposure
to
airborne
micro-
nanoplastics
(AMNPs),
despite
their
critical
role
in
MNPs.
We
probabilistically
estimate
global
intake
AMNPs
through
three
main
pathways:
indoor
inhalation,
outdoor
ingestion
during
meals,
for
both
children
adults.
The
median
inhalation
AMPs
is
1,207.7
(90%
CI,
42.5–8.48
×
104)
1,354.7
47.4–9.55
N/capita/day
adults,
respectively.
annual
13.18
mg/capita/a
19.10
which
approximately
one-fifth
one-third
mass
a
standard
stamp,
assuming
consistent
daily
medians.
majority
AMP
number
occurs
while
deposited
meals
contributes
most
terms
mass.
Furthermore,
ANP
9,638.1
N/day
(8.23
10–6
μg/d)
5,410.6
(4.62
respectively,
compared
5.30
105
(5.79
10–4
6.00
(6.55
via
inhalation.
Considering
increased
toxicity
smaller
MNPs,
significant
ANPs
inhaled
warrants
great
attention.
Collaborative
efforts
are
imperative
further
elucidate
combat
current
MPN
risks.
