Human and Ecological Risk Assessment An International Journal,
Journal Year:
2024,
Volume and Issue:
unknown, P. 1 - 23
Published: Dec. 4, 2024
Identifying
pollution
sources
and
measuring
their
impact
is
essential
for
protecting
groundwater.
Groundwater
in
the
Guanzhong
region
were
identified
using
positive
matrix
decomposition
(PMF)
model,
contributions
quantified.
The
spatial
distribution
of
socio-economic
factors
(population,
GDP,
fertilizer
use,
farmland,
livestock)
was
analyzed.
Redundancy
correlation
analyses
used
to
assess
land
use
on
groundwater
quality.
results
showed
that
primary
physicochemical
constituents
exceeding
standard
limits
were,
descending
order,
NO3−,
Na+,
TDS,
F−,
SO42−,
Cl−,
most
polluted
areas
found
eastern
southern
parts
study
area.
Land
can
have
diverse
impacts
Five
main
responsible
quality
deterioration
comprehensively
identified,
i.e.,
agricultural
nonpoint
sources,
domestic
from
urban
rural
development,
natural
release
fluorine
stratigraphic
minerals
as
well
coal
mine
storage
combustion,
industrial
discharges,
water-rock
reactions.
Natural
discharges
are
major
causes
degradation
area,
which
followed
by
reactions,
agriculture,
pollution.
