Environmental Pollution,
Journal Year:
2022,
Volume and Issue:
309, P. 119749 - 119749
Published: July 9, 2022
UV
filters
(UVFs)
and
paraben
preservatives
(PBs)
are
widely
used
components
in
many
personal
care
products.
However,
there
has
been
a
rising
concern
for
their
endocrine-disrupting
effects
on
wildlife
once
they
reach
aquatic
ecosystems
via
recreative
activities
wastewater
treatment
plants
effluents.
This
study
addresses
UVFs
PBs
occurrence
seawater
sediment
impacted
by
tourism
sewage
discharges
along
the
coast
of
Mahdia,
center
East
Tunisia.
Samples
water
were
collected
6
months
from
3
coastal
areas.
Among
14
investigated
UVFs,
8
detected
4
found
sediment.
All
present
only
methylparaben
(MePB)
was
Benzophenone-3
(oxybenzone,
BP3),
benzocaine
(EtPABA),
MePB
all
samples
with
concentrations
ranges
16.4-66.9,
7.3-37.7,
17.6-222
ng/L,
respectively.
highest
value,
1420
corresponded
to
octinoxate
(EHMC).
In
sediments,
avobenzone
(AVO),
4-methyl
benzylidene
camphor
(4MBC),
EHMC,
5-methyl-1-H-benzotriazole
(MeBZT),
at
within
range
1.1-17.6
ng/g
dw,
being
most
frequently
(89%).
MBZT
presented
sediment-water
partition
coefficients
also
showed
positive
correlation
total
suspended
solids'
content.
Overall,
pollutants
remained
rather
constant
sampling
period,
showing
little
seasonal
variation.
constitutes
first
monitoring
Tunisian
coastline
provides
data
reference
further
surveys
country.
The Science of The Total Environment,
Journal Year:
2023,
Volume and Issue:
905, P. 167332 - 167332
Published: Sept. 25, 2023
Among
different
pollutants
of
emerging
concern,
parabens
have
gained
rising
interest
due
to
their
widespread
detection
in
water
sources
worldwide.
This
occurs
because
are
used
personal
care
products,
pharmaceuticals,
and
food,
which
residues
generated
released
into
aquatic
environments.
The
regulation
the
use
varies
across
geographic
regions,
resulting
diverse
concentrations
observed
globally.
Concentrations
exceeding
100
μg/L
been
found
wastewater
treatment
plants
surface
waters
while
drinking
(DW)
typically
exhibit
below
6
μg/L.
Despite
low
levels,
presence
DW
is
a
potential
exposure
route
for
humans,
raising
concerns
both
human
health
environmental
microbiota.
Although
few
studies
reported
alterations
functions
characteristics
microbial
communities
following
contaminants,
impact
by
communities,
particularly
biofilm
colonizers,
remains
largely
understudied.
review
gathers
most
recent
information
on
occurrence
sources,
as
well
effects
organisms.
interactions
with
reviewed
first
time,
filling
knowledge
gaps
paraben
ecosystems
disinfection
tolerance
antimicrobial
resistance,
implications
public
health.
Environmental Sciences Europe,
Journal Year:
2022,
Volume and Issue:
34(1)
Published: May 19, 2022
Abstract
Background
European
chemicals
management
aims
to
protect
human
health
and
the
environment
from
legacy
emerging
contaminants.
The
plasticizer
market
changed
in
response
restriction
of
low
molecular
weight
(LMW)
phthalate
plasticizers
such
as
Di
(2-ethylhexyl)
(DEHP)
due
their
hazardous
properties.
We
investigated
patterns
trends
19
regulated
house
dust
German
homes
suspended
particulate
matter
(SPM)
major
rivers.
samples
were
used
mid-2000s
late
2010s
two
governmental
long-term
monitoring
programs
Germany.
Results
While
sum
respective
levels
hardly
over
study
period,
we
observed
a
significant
decrease
LMW
phthalates
both
(2003/06,
80%
∑plasticizer
concentration;
2014/17,
31%)
SPM
(2005,
48%;
2017,
28%).
This
was
accompanied
by
substitution
with
high
(HMW)
non-phthalates.
HMW
increased
19%
concentration
46%
between
dust,
50%
63%
samples.
Diisononyl
(DINP)
replaced
DEHP
dominant
compartments.
A
tenfold
increase
(
p
<
0.05)
for
(2-propylheptyl)
(DPHP)
(1–13%),
compared
(2014/17,
1%).
Non-phthalates
23%
but
only
9%
(mid-2000s:
1%;
SPM,
1.5%).
In
recent
samples,
terephthalate
(DEHT)
had
third
highest
all
contributed
18%
total
load,
whereas
Tris
trimellitate
(TOTM)
one
non-phthalates
Conclusions
Unlike
indoor
environment,
aquatic
characterized
shift
towards
potentially
DPHP
TOTM
identified
chemical
regulation
endocrine
disrupting
compounds
persistent,
bioaccumulative
toxic
compounds.
Our
data
document
need
integrated
safeguard
transition
non-toxic
environment.
Water Research,
Journal Year:
2023,
Volume and Issue:
242, P. 120221 - 120221
Published: June 15, 2023
In
household
wastewater,
a
large
proportion
of
organic
micropollutants
(OMPs)
load
is
attributed
to
human
urine.
OMPs
could
pose
risk
and
environmental
health
when
urine
collected
in
source-separating
sanitation
systems
recycled
as
crop
fertiliser.
This
study
evaluated
degradation
75
treated
by
UV-based
advanced
oxidation
process.
Fresh
water
samples
were
spiked
with
broad
range
fed
into
photoreactor
equipped
UV
lamp
(185
254
nm)
that
generated
free
radicals
situ.
Degradation
rate
constant
the
energy
required
degrade
90%
all
both
matrices
determined.
At
dose
2060
J
m-2,
average
ΣOMP
99%
(±4%)
55%
(±36%)
fresh
was
achieved.
The
demand
for
removal
<1500
but
at
least
10-fold
more
needed.
A
combination
photolysis
photo-oxidation
can
explain
during
treatment.
Organic
substances
(e.g.
urea,
creatinine)
likely
inhibited
competitively
absorbing
UV-light
scavenging
radicals.
There
no
reduction
nitrogen
content
summary,
treatment
reduce
recycling
systems.
Environmental Pollution,
Journal Year:
2024,
Volume and Issue:
347, P. 123764 - 123764
Published: March 13, 2024
Numerous
contaminants
are
produced
and
used
daily,
a
significant
fraction
ultimately
finding
their
way
into
natural
waters.
However,
data
on
distribution
in
lakes
is
lacking.
To
address
this
gap,
the
presence
of
54
trace
organic
(TrOCs),
representative
various
human
activities,
was
investigated
surface
water
290
across
Canada.
These
ranged
from
remote
to
highly
impacted
by
activity.
In
88%
sampled
lakes,
were
detected,
with
up
28
detections
single
lake.
The
compounds
most
frequently
encountered
atrazine,
cotinine,
deethylatrazine,
each
which
present
more
than
third
lakes.
range
detected
concentrations
0.23
ng/L
about
2200
for
individual
compounds,
while
maximum
cumulative
concentration
exceeded
8100
A
risk
assessment
based
effect
three
aquatic
species
(Pimephales
promelas,
Daphnia
magna,
Tetrahymena
pyriformis)
conducted,
revealing
that
6%
exhibited
high
potential
at
least
one
species.
59%
some
sub-lethal
effects
detection
17
TrOCs
impacts.
results
work
provide
first
reference
point
monitoring
evolution
contamination
Canadian
TrOCs.
They
demonstrate
proportion
bear
an
environmentally
relevant
anthropogenic
chemical
footprint.
