Hydrochemical characteristics analysis and human health assessment in the upper reaches of Zhang Wei River alluvial plain
Abstract
Groundwater
is
the
critical
resource
for
agricultural,
industrial,
and
urban-rural
water
supplies
in
arid
semi-arid
regions,
especially
North
China
Plain.
In
this
study,
64
groundwater
samples
were
collected
to
assess
potential
development
utilization
upper
reaches
of
Zhang
Wei
river.
The
hydrochemical
analysis
revealed
that
primarily
composed
HCO3-Ca
HCO3-Na·Ca.
type
influenced
by
natural
water-rock
interactions,
including
evaporite
dissolution,
silicate
weathering,
ion
exchange
processes.
Isotope
data
hydrogen
oxygen,
characterized
positive
deviations
from
global
meteoric
line,
underscore
significant
impact
evaporation
region.
An
entropy
weight
index
method
was
employed
quality
evaluation,
revealing
over
89%
complied
with
Class
II
standards
household
use.
Furthermore,
more
than
85%
area’s
exhibited
Total
Dissolved
Solids
(TDS)
concentrations
below
1,000
mg/L,
indicating
a
predominance
soft
water.
However,
toxic
elements
such
as
fluorine
(F),
iodine
(I),
chromium
(Cr)
found
exceed
drinking
standards,
posing
health
risk.
Particularly,
intake
level
above
permissible
value,
potentially
causing
non-carcinogenic
risks
children
infants.
conclusion,
while
overall
favorable
region,
presence
geochemically
derived
substances
necessitates
careful
consideration
its
suitability
purposes.
Research Square (Research Square), Год журнала: 2024, Номер unknown
Опубликована: Июль 15, 2024
Язык: Английский
