SSRN Electronic Journal,
Год журнала:
2021,
Номер
unknown
Опубликована: Янв. 1, 2021
Contaminants
of
emerging
concern
(CECs)
are
a
in
aquatic
environments
due
to
possible
adverse
effects
on
the
environment
and
humans.
This
study
assessed
occurrence
mass
flows
CECs
Sweden’s
three
largest
lakes
24
associated
rivers.
The
distribution
105
was
investigated,
comprising
71
pharmaceuticals,
13
perfluoroalkyl
substances
(PFASs),
eight
industrial
chemicals,
four
personal
care
products
(PCPs),
parabens,
two
pesticides,
other
(mostly
anthropogenic
markers).
is
first
systematic
main
one
report
environmental
concentrations
chemicals
tributyl
citrate
acetate
2,2'-dimorpholinyldiethyl-ether.
∑CEC
concentration
generally
higher
river
water
(31-5200
ng/L;
median
440
ng/L)
than
lake
(36-900
190
ng/L).
At
urban
sites,
seasonal
variations
were
observed
for
PCPs
also
antihistamines,
antidiabetics,
antineoplastic
agents,
antibiotics,
fungicides.
CEC
load
180
g/day
(range
4.0-4300
g/day),
with
total
5000
Lake
Vänern,
510
Vättern,
5600
Mälaren.
All
used
as
drinking
reservoirs,
so
further
investigations
impact
ecosystem
human
health
needed.
Environmental Science & Technology,
Год журнала:
2021,
Номер
55(22), С. 15215 - 15226
Опубликована: Ноя. 3, 2021
Characterizing
the
occurrence,
sources,
and
fate
of
organic
micropollutants
(OMPs)
in
lake–river
systems
serves
as
an
important
foundation
for
constraining
potential
impacts
OMPs
on
ecosystem
functions
these
critical
landscape
features.
In
this
work,
we
combined
suspect
nontarget
screening
with
mass
balance
modeling
to
investigate
OMP
contamination
Onondaga
Lake–Three
Rivers
system
New
York.
Suspect
enabled
by
liquid
chromatography–high-resolution
spectrometry
led
confirmation
quantification
105
water
samples
collected
throughout
system,
which
were
grouped
their
concentration
patterns
into
wastewater-derived
mixed-source
clusters
via
hierarchical
cluster
analysis.
Four
(i.e.,
galaxolidone,
diphenylphosphinic
acid,
N-butylbenzenesulfonamide,
triisopropanolamine)
prioritized
identified
based
characteristic
vertical
distribution
during
thermal
stratification
Lake.
Mass
performed
using
discharge
data
highlighted
export
from
Lake
Three
a
major
contributor
budget
system.
Overall,
work
demonstrated
utility
integrated
framework
that
can
be
adapted
characterization,
assessment,
load
apportionment
similar
surface
systems.
Environmental Science Processes & Impacts,
Год журнала:
2024,
Номер
26(6), С. 1052 - 1063
Опубликована: Янв. 1, 2024
Wavelength-dependent
Φ
λ
of
uridine,
atrazine,
PNA,
sulfamethoxazole,
and
diclofenac
were
determined,
which
can
be
used
to
characterize
model
the
photodegradation
chemicals
interest.
