The Journal of Infectious Diseases,
Год журнала:
2019,
Номер
221(3), С. 372 - 378
Опубликована: Ноя. 18, 2019
Environmental
parameters,
including
sunlight
levels,
are
known
to
affect
the
survival
of
many
microorganisms
in
aerosols.
However,
impact
on
influenza
virus
aerosols
has
not
been
previously
quantified.The
present
study
examined
influence
simulated
at
both
20%
and
70%
relative
humidity
using
an
environmentally
controlled
rotating
drum
aerosol
chamber.Measured
decay
rates
were
dependent
level
sunlight,
but
they
significantly
different
between
2
levels
tested.
In
darkness,
average
constant
was
0.02
±
0.06
min-1,
equivalent
a
half-life
31.6
minutes.
full
intensity
mean
0.29
0.09
approximately
2.4
minutes.These
results
consistent
with
epidemiological
findings
that
inversely
correlated
transmission,
can
be
used
better
understand
potential
for
spread
under
varied
environmental
conditions.
Water,
Год журнала:
2020,
Номер
12(12), С. 3313 - 3313
Опубликована: Ноя. 25, 2020
The
release
of
antibiotics
to
the
environment,
and
consequences
presence
persistent
antimicrobial
residues
in
ecosystems,
have
been
subject
numerous
studies
all
parts
world.
overuse
misuse
is
a
common
global
phenomenon,
which
substantially
increases
levels
environment
rates
their
spread.
Today,
it
can
be
said
with
certainty
that
mass
production
use
for
purposes
other
than
medical
treatment
has
an
impact
on
both
human
health.
This
review
aims
track
pathways
environmental
distribution
antimicrobials
identify
biological
effects
subinhibitory
concentration
different
compartments;
also
assesses
associated
public
health
risk
government
policy
interventions
needed
ensure
effectiveness
existing
antimicrobials.
recent
surge
interest
this
issue
driven
by
dramatic
increase
number
infections
caused
drug-resistant
bacteria
worldwide.
Our
study
line
One
Health
approach.
The Journal of Infectious Diseases,
Год журнала:
2020,
Номер
222(2), С. 214 - 222
Опубликована: Май 16, 2020
Previous
studies
have
demonstrated
that
SARS-CoV-2
is
stable
on
surfaces
for
extended
periods
under
indoor
conditions.
In
the
present
study,
simulated
sunlight
rapidly
inactivated
suspended
in
either
saliva
or
culture
media
and
dried
stainless
steel
coupons.
Ninety
percent
of
infectious
virus
was
every
6.8
minutes
14.3
when
exposed
to
representative
summer
solstice
at
40°N
latitude
sea
level
a
clear
day.
Significant
inactivation
also
occurred,
albeit
slower
rate,
lower
levels.
The
study
provides
first
evidence
may
inactivate
surfaces,
suggesting
persistence,
subsequently
exposure
risk,
vary
significantly
between
outdoor
environments.
Additionally,
these
data
indicate
natural
be
effective
as
disinfectant
contaminated
nonporous
materials.
In
this
research
update,
we
discuss
the
visible-light
photocatalysis.
Due
to
potential
of
utilizing
freely
available
solar
energy
for
environmental
remediation
and
fuel
generation,
topic
has
been
increasing
interest.
Huge
amount
work
done
in
developing
a
large
variety
photocatalyst
materials,
advances
have
made
understanding
process.
Nevertheless,
substantial
challenges
remain.
Some
those
could
possibly
be
solved
by
better
but
many
cases,
biggest
problem
is
whether
photocatalysis
scaled
up
an
industrial
process
that
would
cost-competitive
existing
technologies.
Here,
different
types
photocatalysts
their
applications
outline
various
need
addressed
development
practically
relevant
materials
systems.
Chemical Reviews,
Год журнала:
2021,
Номер
121(7), С. 4100 - 4146
Опубликована: Март 8, 2021
Singlet
oxygen
(1O2)
is
a
reactive
species
produced
in
sunlit
waters
via
energy
transfer
from
the
triplet
states
of
natural
sensitizers.
There
has
been
an
increasing
interest
measuring
apparent
1O2
quantum
yields
(ΦΔ)
aquatic
and
atmospheric
organic
matter
samples,
driven
part
by
fact
that
this
parameter
can
be
used
for
environmental
fate
modeling
contaminants
to
advance
our
understanding
dissolved
photophysics.
However,
lack
reproducibility
across
research
groups
publications
remains
challenge
significantly
limits
usability
literature
data.
In
first
review,
we
critically
evaluate
experimental
techniques
have
determine
ΦΔ
values
matter,
identify
quantify
sources
errors
potentially
explain
large
variability
literature,
provide
general
recommendations
future
studies.
second
part,
qualitative
overview
known
trends
as
function
type,
isolation
extraction
procedures,
bulk
water
chemistry
parameters,
molecular
spectroscopic
features,
chemical
treatments,
wavelength,
season,
location.
This
review
supplemented
with
comprehensive
database
samples.
Photochemical & Photobiological Sciences,
Год журнала:
2021,
Номер
20(1), С. 1 - 67
Опубликована: Янв. 1, 2021
Abstract
This
assessment
by
the
Environmental
Effects
Assessment
Panel
(EEAP)
of
United
Nations
Environment
Programme
(UNEP)
provides
latest
scientific
update
since
our
most
recent
comprehensive
(Photochemical
and
Photobiological
Sciences,
2019,
18,
595–828).
The
interactive
effects
between
stratospheric
ozone
layer,
solar
ultraviolet
(UV)
radiation,
climate
change
are
presented
within
framework
Montreal
Protocol
Sustainable
Development
Goals.
We
address
how
these
global
environmental
changes
affect
atmosphere
air
quality;
human
health;
terrestrial
aquatic
ecosystems;
biogeochemical
cycles;
materials
used
in
outdoor
construction,
energy
technologies,
fabrics.
In
many
cases,
there
is
a
growing
influence
from
seasonality
extreme
events
due
to
change.
Additionally,
we
assess
transmission
severe
acute
respiratory
syndrome
coronavirus
2
(SARS-CoV-2),
which
responsible
for
COVID-19
pandemic,
context
linkages
with
UV
radiation
Protocol.
