Assessing landfill gas emissions and their environmental and economic impact potential in Vientiane Capital’s landfill, Laos
Fuel,
Journal Year:
2025,
Volume and Issue:
398, P. 135536 - 135536
Published: May 2, 2025
Language: Английский
Municipal Solid Waste Management in Laos: Comparative Analysis of Environmental Impact, Practices, and Technologies with ASEAN Regions and Japan
Environments,
Journal Year:
2024,
Volume and Issue:
11(8), P. 170 - 170
Published: Aug. 9, 2024
Municipal
solid
waste
management
in
developing
countries
faces
limitations,
especially
concerning
technologies
for
treatment
and
disposal,
which
is
crucial
achieving
environmental
economic
sustainability
goals.
This
paper
investigates
municipal
Laos,
compared
with
the
ASEAN-Japan
regions,
focusing
on
background
information,
characteristics,
impact,
resource
utilization.
The
findings
indicate
a
continuous
rise
generation
particularly
capital
Vientiane,
from
0.21
million
tons
2012
to
0.37
2021.
Treatment
methods
include
unsanitary
landfilling,
basic
recycling,
open
dumping,
as
well
burning
or
discharge
into
rivers,
posing
potential
risks
environment
human
health.
Japan
Singapore
have
shown
decreasing
trends,
reducing
45.23
40.95
2021
7.27
6.94
Laos
encounters
challenges
managing
waste,
recovery
waste-to-energy
practices,
elements
of
integrated
aimed
at
promoting
sustainability.
Enhancing
involves
act
segregation,
extended
producer
responsibility
policies.
Implementing
mechanical
biological
facilities,
plants,
upgraded
landfills
crucial.
Capacity
building
public
awareness
campaigns
will
improve
sustainability,
reduce
impacts,
advance
sustainable
development
goals
cities
communities.
Language: Английский
High Sensitivity and Selectivity of PEDOT/Carbon Sphere Composites for Pb2+ Detection
Molecules,
Journal Year:
2025,
Volume and Issue:
30(4), P. 798 - 798
Published: Feb. 9, 2025
Heavy
metal
ions
impair
human
health
and
irreversibly
damage
the
ecosystem.
As
a
result,
it
is
critical
to
create
an
efficient
approach
for
identifying
heavy
ions.
The
electrochemical
sensor
method
type
of
detection
that
highly
sensitive,
low
in
cost,
allows
real-time
monitoring.
In
this
study,
solid
carbon
spheres
were
made
using
resorcinol
formaldehyde
as
raw
materials,
followed
by
formation
PEDOT/carbon
sphere
composites
via
situ
oxidative
polymerization,
Pb2+
was
detected
utilizing
them
electrode
modification
materials.
structure
spherical
analyzed
scanning
electron
microscopy
(SEM),
X-ray
diffraction
(XRD),
Fourier
transform
infrared
spectroscopy
(FTIR).
To
investigate
properties
these
composites,
impedance
(EIS),
cyclic
voltammetry
(CV),
differential
pulse
(DPV)
employed.
addition,
mechanism
material
Pb2⁺
studied
CV.
showcased
extensive
linear
range
7.5
×
10-2
1.0
μM
ions,
achieving
limit
(LOD)
3.5
nM
displaying
exceptional
selectivity.
These
results
can
be
attributed
its
large
surface
area,
superior
electrical
conductivity,
outstanding
transport
properties.
This
study
offers
effective
detecting
concentrations
Pb2+,
with
potential
applications
future
detection.
Language: Английский
Marketing of Freshwater and Marine Fish Species in Alexandria City, Egypt: Human Health Risk of Specific Metals
Biological Trace Element Research,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 17, 2025
Abstract
Fish
intake
may
constitute
a
significant
route
by
which
humans
are
exposed
to
metals,
especially
people
who
depend
on
fish
as
source
of
protein
Alexandrians.
Therefore,
this
study
aimed
investigate
the
metal
contents
in
muscles
eight
commonly
consumed
freshwater
(Tilapia,
Catfish,
and
Common
Carp)
marine
species
(Emperors,
Groupers,
Mackerels,
Silver
Pomfret,
Roving
Groupers)
collected
from
local
markets
located
Alexandria
City
for
1-year
calendar
year,
2022.
Seasonal
variations
levels
tested
metals
species,
with
differences
between
were
recorded.
Also,
Cu,
Zn,
Fe,
Co,
Cd
all
during
experiment
did
not
exceed
guideline
limits,
while
Ni,
Cr,
Pb
October–May,
June–September,
February–May
2022,
respectively,
exceeded
permissible
limits
settled
FAO
WHO.
Additionally,
Mackerels
Groupers
had
high-level
Mn
that
European
Commission.
The
accumulation
these
different
relative
variation
accumulation,
Cu
was
most
predominant
element
Tilapia,
Zn
Fe
Carp,
Emperors,
Co
Tilapia.
Consumption
high
Metal
Pollution
Index
(MPI)
value
pose
potential
public
health
risk.
On
meantime,
calculated
values
estimated
daily
intakes
(EDI),
hazard
index
(HI),
target
quotient
(THQ)
indicated
no
risk
Alexandrians
via
consumption
because
they
World
Health
Organization’s
acceptable
intake.
Language: Английский
Health Risk Assessment and Heavy Metal Contamination Estimation in Date Palm Fruit Grown in Sindh, Pakistan: Multivariate Study
Environmental Quality Management,
Journal Year:
2024,
Volume and Issue:
34(2)
Published: Nov. 26, 2024
ABSTRACT
Cadmium
(Cd)
and
lead
(Pb)
are
commonly
found
in
the
environment
due
to
human
activities
like
industrialization
development.
These
metals
toxic
often
contaminate
water,
food,
edible
plants,
leading
exposure.
This
study
investigates
Cd
Pb
levels
68
date
samples
from
supermarkets
across
various
regions
of
Sindh,
Pakistan,
including
30
provided
by
companies
that
export
palm
fruits
globally.
Electrothermal
atomic
absorption
spectrometry
(ETAAS)
with
conventional
wet
acid
digestion
(CAD)
was
used
for
metal
determination.
Optimization
carried
out
Plackett–Burman
design
(PBD),
central
composite
(CCD),
response
surface
methodology
(RSM).
Results
indicated
ranged
0.012
±
0.001
0.061
0.004,
an
average
value
0.031
0.002
mg/kg.
Lead
these
varied
0.028
0.079
0.03,
averaging
0.055
0.004
were
within
safety
limits.
However,
local
market
exhibited
slightly
higher
levels,
ranging
0.15
0.01
0.32
0.26
0.02
mg/kg,
exceeding
recommended
In
contrast,
content
0.12
0.16
remaining
below
WHO/FAO.
contaminants
may
originate
cultivation,
air,
transportation,
processing,
so
forth.
The
method
validated
standard
addition
recovery
test,
triplicate
analysis,
procedure
blanks,
reference
material
(SRM).
daily
intake
(ADI)
values
TMs,
along
hazard
index
(HI)
target
quotients
(THQs)
calculated
assess
potential
health
risks.
Language: Английский