Atmosphere,
Journal Year:
2024,
Volume and Issue:
15(7), P. 863 - 863
Published: July 21, 2024
The
rapid
spread
and
accumulation
of
microplastics
(MPs)
in
environmental
ecosystems
result
from
extensive
plastic
usage.
MPs
have
been
found
both
indoor
outdoor
air.
Outdoor
MP
levels
vary
widely
across
global
cities,
with
reported
ranges
36
to
118
m−2
day−1.
However,
differing
measurement
units
complicate
comparisons.
Indoor
are
particularly
concerning
due
the
significant
amount
time
people
spend
indoors.
For
instance,
concentrations
workplaces
like
reception
areas
nail
salons
were
be
309
±
214
46
55
m−3,
respectively.
Technological
limitations
hinder
identification
MPs,
methods
µ-ATR-FTIR,
µ-FTIR,
µ-Raman
identifying
different
sizes.
smaller
than
0.3
µm
pose
a
health
risk
as
they
can
internalized
lung
cells,
while
larger
10
too
large
enter
alveolar
macrophages.
This
review
highlights
current
understanding
airborne
focusing
on
their
sources,
transport,
deposition
mechanisms.
It
aims
provide
foundation
for
further
studies
deeply
assess
presence,
abundance,
occurrence
aerosols,
subject
that
remains
underexplored.
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.
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
