Microplastics
(MPs)
have
been
widely
documented
in
marine
biota,
especially
bivalve
species.
The
uneaven
occurrence
of
MP
reveals
hotspots,
whose
identification
is
relevant
for
guiding
actions,
assessing
effects,
and
monitoring
efforts.
Thus,
he
objective
the
study
was
to
identify
oyster
contamination
hotspots
along
Paranaguá
Estuarine
Complex
-
Brazil.
We
recorded
widespread
variable
oysters
at
regional
local
scales.
frequency
(FO%)
94.31%,
with
a
trend
toward
lower
values
more
remote
and/or
environmental
protection
areas.
average
8.16
±
6.39
MP.ind-1,
1.06
1.28
MP.g-1ww
(wet
weight)
7.54
6.55
MP.g-1dw
(dry
weight
),
influenced
by
location
evaluated.
recommend
that
future
studies
present
information
as
biometric
data
organisms,
which
will
assist
discussion
comparison
concentrations
biota
different
special
Research Square (Research Square),
Год журнала:
2023,
Номер
unknown
Опубликована: Июль 19, 2023
Abstract
Long-term
exposure
to
atmospheric
fine
particulate
matter
(PM
2.5
)
is
a
major
human
health
concern;
respiratory
and
cardiovascular
diseases
are
the
main
consequences.
In
this
study,
we
present
source
apportionment
of
PM
in
large
port
region
South
Atlantic,
located
Natural
Heritage
Estuary,
which
particularly
sensitive
ecosystem
marine
protected
area.
The
mean
concentration
was
15.26
±
7.5
µg
m
−
3
,
with
range
from
0.7
41.0
exceeding
both
World
Health
Organization
target
thresholds
4,
as
well
Air
Quality
Guideline
level.
Notably,
10%
(n
=
34)
samples
exceeded
Brazilian
environmental
quality
threshold
for
24-hour
(25
),
significant
since
guidelines
recommend
maximum
4
exceedance
days
per
year.
Bivariate
plots
meteorological
data
positive
matrix
factorization
(PMF)
were
employed
estimate
sources
soluble
ions
trace
metal
compositions.
findings
suggest
that
truck
activity
nearby
parking
lot
primary
presence
transportation
structure
linked
grain
identified
secondary
source.
Additionally,
study
demonstrate
an
urgent
need
address
impact
soybean
export
industry
on
biodiversity
region,
given
context
excessive
concentrations
risks
they
presumably
pose.
Microplastics
(MPs)
have
been
widely
documented
in
marine
biota,
especially
bivalve
species.
The
uneaven
occurrence
of
MP
reveals
hotspots,
whose
identification
is
relevant
for
guiding
actions,
assessing
effects,
and
monitoring
efforts.
Thus,
he
objective
the
study
was
to
identify
oyster
contamination
hotspots
along
Paranaguá
Estuarine
Complex
-
Brazil.
We
recorded
widespread
variable
oysters
at
regional
local
scales.
frequency
(FO%)
94.31%,
with
a
trend
toward
lower
values
more
remote
and/or
environmental
protection
areas.
average
8.16
±
6.39
MP.ind-1,
1.06
1.28
MP.g-1ww
(wet
weight)
7.54
6.55
MP.g-1dw
(dry
weight
),
influenced
by
location
evaluated.
recommend
that
future
studies
present
information
as
biometric
data
organisms,
which
will
assist
discussion
comparison
concentrations
biota
different
special
