Почвоведение,
Journal Year:
2024,
Volume and Issue:
3, P. 470 - 481
Published: Sept. 18, 2024
In
laboratory
model
experiments,
the
ecotoxicity
of
Tl
was
assessed
by
changing
microbiological,
biochemical
and
phytotoxic
properties
soils
in
South
Russia:
ordinary
chernozem
(Haplic
Chernozem
(Loamic)),
seropesks
(Eutric
Arenosol)
brown
forest
slightly
unsaturated
soil
Cambisol),
differing
granulometric
composition,
pH
organic
matter
content.
As
a
rule,
there
direct
relationship
between
concentration
degree
deterioration
studied
properties.
nitrate
showed
higher
than
oxide.
The
strongest
ecotoxic
effect
manifested
on
10
days
after
contamination,
—
30
later.
Restoration
biological
observed
for
90
days.
Ordinary
greatest
resistance
to
seropeski
least.
results
obtained
indicate
high
Tl.
Hygiene and Sanitation,
Journal Year:
2025,
Volume and Issue:
104(2), P. 146 - 150
Published: March 7, 2025
Introduction.
Chromium
(Cr)
is
one
of
the
most
toxic
heavy
metals.
The
pulp
Urup
Mining
and
Processing
Plant
(MPP)
contains
a
high
concentration
Cr
up
to
1370
mg/kg.
At
same
time,
maximum
permissible
in
soil
(0.05
mg/kg)
not
consistent
with
its
natural
content
(up
130
mg/kg).
To
assess
impact
MPP
tailing
dump
on
adjacent
mountain-meadow
chernozem-likes
soils,
it
advisable
determine
environmentally
safe
content.
Materials
methods.
(VI)
contamination
mountain
meadow
chernozem
was
simulated
laboratory
conditions.
introduced
into
concentrations
10,
25,
50,
100,
250,
500
exposure
period
model
experiment
30
days
while
maintaining
constant
humidity
temperature.
end
this
period,
all
samples
there
were
determined
biological
indicators:
number
bacteria,
indicators
enzyme
activity,
root
length
germination
radishes.
Results.
found
lead
inhibition
parameters.
An
inverse
relationship
has
been
established
between
parameters
soil.
In
vicinity
mining
enterprise
soil,
125
mg/kg
should
be
taken
as
an
concentration.
Limitations.
Environmentally
can
used
primarily
local
environmental
standard
for
area
processing
plant.
Conclusion.
proposed
around
copper
recommended
use
by
institutions
field
protection,
agricultural
scientific
activities.
