Biological Trace Element Research,
Год журнала:
2023,
Номер
202(1), С. 387 - 396
Опубликована: Май 2, 2023
Abstract
Tea
is
the
world’s
most
common
drink
after
water,
and
annual
sales
exceed
$43
billion,
of
which
more
than
$11
billion
green
tea
(
Camellia
sinensis
(L.)).
Increasing
evidence
continues
to
show
that
consumption
its
ingredients
have
a
variety
potential
health
benefits.
The
aim
study
was
control
assess
toxicological
risk
(TRA)
three
heavy
metals
(As,
Pb,
Cd)
in
infusions
n
=
12)
from
Polish
markets.
We
applied
method
inductive
coupled
plasma
mass
spectrometry
(ICP-MS)
determine
selected
metal
designed
specific
assessment
with
crucial
tiers.
first
tier
our
strategy
elements
investigated
(heavy
impurities,
µg/L).
second
step
estimate
weekly
intake
(µg/week)
based
on
consumption.
third
per
weight
(µg/L/week/bw),
average
infusion
adult
compared
provisional
(PTWI)
established
by
FAO/WHO
Joint
Food
Additives
Expert
Committee
(JECFA).
levels
occur
at
different
all
infusions.
profile
indicated
As
(0.0721–10.585
µg/L),
Pb
(0.386–1.695
Cd
(0.126–0.346
µg/L)
were
present
samples.
Basic
analysis
general
content
shows
(average
0.325
level
similar
0.214
Surprisingly,
0.891
approximately
2.75–4
times
higher
Cd,
respectively.
application
proposed
safety
methodology
(three
tiers)
provides
satisfactory
results
for
regulatory
purposes.
evaluation
products
analysed
samples
(infusions)
showed
there
no
hazards
consumers
due
exposure.
drinking
markets,
amount
doses
does
not
represent
any
risks
consumers.
Frontiers in Plant Science,
Год журнала:
2024,
Номер
15
Опубликована: Авг. 8, 2024
Cadmium
(Cd)
is
a
highly
toxic
trace
element
that
occurs
in
large
quantities
agricultural
soils.
The
cultivation
of
industrial
crops
with
high
phytoremediation
potential,
such
as
kenaf,
could
effectively
reduce
soil
Cd
contamination,
but
the
mechanisms
toxicity,
tolerance,
and
detoxification
remain
unclear.
Frontiers in Marine Science,
Год журнала:
2022,
Номер
9
Опубликована: Июнь 15, 2022
Heavy
metal
pollution
in
the
mariculture
areas
is
of
considerable
attention
due
to
its
potential
ecological
effects
and
public
concern
for
seafood
safety.
A
better
understanding
current
contamination
status
historical
trend
heavy
metals
ecosystems
has
an
important
implication
sustainable
development
marine
health
concerns.
To
assess
impact
human
activities
on
area,
seven
(Cu,
Pb,
Zn,
Cd,
Hg,
As,
Cr)
environmental
parameters
were
seasonally
investigated
surface
seawater
sediments
Qinzhou
Bay,
a
typical
bay
South
China.
Seasonal
variations
concentration
found
both
sediment,
which
are
mainly
influenced
by
seasonal
hydrological
change,
biological
activity,
influence.
The
was
at
relatively
higher
level
than
that
other
China,
while
lower
sediment.
Cu
increased
sediment
past
decades
(by
nearly
2
times),
shipping
activities.
Hg
decreased
significantly
40
years
(decreased
13
times)
decrease
production
usage
Hg.
However,
concentrations
Cd
showed
increasing
bay,
Cr
over
decades.
pH
value
(decreasing
4.7%
20
years)
responsible
different
those
between
because
could
re-release
from
into
water
column.
As
main
risk
factors
bay.
This
study
suggests
changes,
such
as
ocean
acidification,
affect
distribution
sediments,
we
should
be
more
vigilant
concerned
about
under
global
climate
change.
International Journal of Environmental Research and Public Health,
Год журнала:
2022,
Номер
19(22), С. 14968 - 14968
Опубликована: Ноя. 14, 2022
Phytoremediation
could
be
an
alternative
strategy
for
lead
(Pb)
contamination.
K.
paniculata
has
been
reported
as
a
newly
potential
plant
sustainable
phytoremediation
of
Pb-contaminated
soil.
Physiological
indexes,
enrichment
accumulation
characteristics,
Pb
subcellular
distribution
and
microstructure
were
carefully
studied
at
different
levels
stress
(0-1200
mg/L).
The
results
showed
that
growth
increased
up
to
123.8%
112.7%,
relative
the
control
group
when
was
200
mg/L
400
mg/L,
respectively.
However,
average
height
biomass
decrease
continues
increase.
In
all
treatment
groups,
in
organs
trend
root
>
stem
leaf,
reached
81.31%~86.69%
root.
Chlorophyll
content
chlorophyll
a/b
rising
then
fell
with
increasing
stress.
Catalase
(CAT)
peroxidase
(POD)
activity
positive
followed
by
negative
decline,
while
superoxide
dismutase
(SOD)
significantly
exposure
Transmission
electron
microscopy
(TEM)
accumulates
inactive
metabolic
regions
(cell
walls
vesicles)
roots
stems,
which
may
main
mechanism
plants
reduce
biotoxicity.
Fourier
transform
infrared
spectroscopy
(FTIR)
intracellular
-OH
-COOH
functional
groups.
Through
organic
acids,
polysaccharides,
proteins
other
compounds
bound
Pb,
adaptation
tolerance
enhanced.
good
broad
application
prospects
heavy
metal-contaminated
Biological Trace Element Research,
Год журнала:
2023,
Номер
202(1), С. 387 - 396
Опубликована: Май 2, 2023
Abstract
Tea
is
the
world’s
most
common
drink
after
water,
and
annual
sales
exceed
$43
billion,
of
which
more
than
$11
billion
green
tea
(
Camellia
sinensis
(L.)).
Increasing
evidence
continues
to
show
that
consumption
its
ingredients
have
a
variety
potential
health
benefits.
The
aim
study
was
control
assess
toxicological
risk
(TRA)
three
heavy
metals
(As,
Pb,
Cd)
in
infusions
n
=
12)
from
Polish
markets.
We
applied
method
inductive
coupled
plasma
mass
spectrometry
(ICP-MS)
determine
selected
metal
designed
specific
assessment
with
crucial
tiers.
first
tier
our
strategy
elements
investigated
(heavy
impurities,
µg/L).
second
step
estimate
weekly
intake
(µg/week)
based
on
consumption.
third
per
weight
(µg/L/week/bw),
average
infusion
adult
compared
provisional
(PTWI)
established
by
FAO/WHO
Joint
Food
Additives
Expert
Committee
(JECFA).
levels
occur
at
different
all
infusions.
profile
indicated
As
(0.0721–10.585
µg/L),
Pb
(0.386–1.695
Cd
(0.126–0.346
µg/L)
were
present
samples.
Basic
analysis
general
content
shows
(average
0.325
level
similar
0.214
Surprisingly,
0.891
approximately
2.75–4
times
higher
Cd,
respectively.
application
proposed
safety
methodology
(three
tiers)
provides
satisfactory
results
for
regulatory
purposes.
evaluation
products
analysed
samples
(infusions)
showed
there
no
hazards
consumers
due
exposure.
drinking
markets,
amount
doses
does
not
represent
any
risks
consumers.
