Toxics,
Journal Year:
2024,
Volume and Issue:
12(11), P. 787 - 787
Published: Oct. 29, 2024
Volatile
organic
compounds
(VOCs)
are
ubiquitous
in
the
atmosphere,
posing
significant
adverse
impacts
on
air
quality
and
human
health.
However,
current
research
atmospheric
VOCs
mainly
focuses
specific
regions
or
industries,
without
comprehensive
national-level
analysis.
In
this
study,
a
total
of
99
articles
China
published
from
2015
to
2024
were
screened,
data
their
concentrations,
source
apportionment,
health
risks
extracted
summarized.
The
results
revealed
that
annual
average
concentrations
TVOCs
groups
generally
increased
then
decreased
between
2011
2022,
peaking
2018-2019.
A
distinct
seasonal
pattern
was
observed,
with
highest
occurring
winter,
followed
by
autumn,
spring,
summer.
TVOC
emissions
highly
concentrated
northern
eastern
China,
contributed
alkanes
alkenes.
Source
apportionment
indicated
vehicle
sources
(32.9%
±
14.3%),
industrial
(18.0%
12.8%),
other
combustion
(13.0%
13.0%)
primary
China.
There
positive
correlation
(
As
civilization
has
evolved,
industrial
and
human
daily
activities,
such
as
the
production
of
chemicals
agents
incineration
municipal
solid
waste,
have
contributed
significantly
to
environmental
pollution.
The
quality
subsurface
water
sources
is
at
risk,
soil
deteriorating,
structural
properties
are
changed,
atmosphere
polluted,
even
aquatic
terrestrial
creatures
harmed.
In
this
chapter,
focus
pollutants
on
volatile
organic
compounds
(VOCs),
some
persistent
(POPs).
VOCs
with
high
vapor
pressure
mainly
exist
in
prone
migration.
potent
ozone
(O
3
)
precursors
that
provide
OH
radicals
needed
ambient
air
for
generation
ground-level
O
,
making
them
photochemically
reactive
molecules
atmospheric
chemistry.
On
contrary,
POPs
a
type
pollutant
low
pressure,
although
they
can
still
rely
long-distance
addition,
difficult
environmentally
degrade
very
toxic,
which
be
enriched
food
web
bring
health
risks
beings.
Both
always
occur
form
mixture
environment.
Different
types
or
numbers
substituents
connected
same
molecular
skeleton
result
multiple
congeners.
Therefore,
paying
attention
overall
geochemical
behavior
mixed
more
conducive
understanding
characteristics
migration
transformation.
