International Journal of Environmental Research and Public Health,
Journal Year:
2022,
Volume and Issue:
19(15), P. 8980 - 8980
Published: July 23, 2022
Per-
and
polyfluoroalkyl
substances
(PFAS)
are
ever-present
pollutants
in
the
environment.
They
persistent
bio-accumulative
with
deleterious
health
effects
on
biota.
This
study
assesses
levels
of
PFAS
environmental
matrices
along
Nairobi
River,
Kenya.
An
aggregate
30
were
determined
water,
while
28
detected
sediments
plants
using
solid
phase
extraction
then
liquid
chromatography–mass
spectrometric
techniques.
In
higher
perfluoroundecanoic
acids
up
to
39.2
ng
L−1
observed.
Sediment
plant
samples
obtained
midstream
downstream
contained
perfluorooctanoic
acid
39.62
29.33
g−1,
respectively.
Comparably,
long-chain
water
than
plants.
Sediment/water
log
distribution
selected
ranged
between
2.5
(perfluoroundecanoic
acid)
4.9
(perfluorooctane
sulfonate).
The
level
perfluorooctane
sulfonate
(1.83
L−1)
is
above
acceptable
surface
posing
high
human
ecological
risks.
observed
concentrations
attributed
mainly
multi-industries
located
river,
among
other
sources.
knowledge
occurrence
Kenya,
provides
important
information
local
regulatory
agencies
for
pollution
control.
Case Studies in Chemical and Environmental Engineering,
Journal Year:
2024,
Volume and Issue:
9, P. 100643 - 100643
Published: Jan. 30, 2024
Per-
and
polyfluoroalkyl
substances
(PFAS)
have
been
detected
in
soils
worldwide,
suggesting
that
soil
serves
as
a
substantial
reservoir
for
these
compounds.
This
paper
provides
comprehensive
overview
of
the
origin
PFAS
contamination
sediment,
well
environmental
impacts
associated
with
distribution
mediums.
In
this
review,
we
also
discuss
effects
on
microbes,
plants,
terrestrial
food
web,
sediment
benthic
microorganisms.
The
highest
concentration
was
found
exposed
to
aqueous
film-forming
foam
(AFFF),
manufacturing
biosolids,
compared
landfills,
atmospheric
deposition,
industrial
discharge,
which
are
other
three
sources.
Exposure
has
demonstrated
negative
richness,
diversity,
population
structure
bacterial
species.
It
observed
interfere
regular
functioning
microorganisms,
organisms
sediment.
Nevertheless,
current
data
is
insufficient
grasp
complete
spectrum
comprehensively.
Moreover,
accumulation
vegetables,
earthworms
cause
concern,
they
can
eventually
enter
chain
through
trophic
transfer
processes.
Finally,
challenges
possible
strategies
be
implemented
restrict
dispersion
sediments
soil.
