Air Quality Atmosphere & Health,
Journal Year:
2020,
Volume and Issue:
13(10), P. 1157 - 1165
Published: July 15, 2020
Covid-19
pandemic
has
adversely
affected
all
the
aspects
of
life
in
adverse
manner;
however,
a
significant
improvement
been
observed
air
quality,
due
to
restricted
human
activities
amidst
lockdown.
Present
study
reports
comparison
quality
between
lockdown
duration
and
before
seven
selected
cities
(Ajmer,
Alwar,
Bhiwadi,
Jaipur,
Jodhpur,
Kota,
Udaipur)
Rajasthan
(India).
The
period
analysis
is
10
March
2020
20
(before
period)
versus
25
17
May
(during
divided
into
three
phases).
In
order
understand
variations
level
pollutant
accumulation
amid
period,
trend
performed
for
24
h
daily
average
data
five
pollutants
(PM2.5,
PM10,
NO2,
SO2,
ozone).
Fig.
aGraphical
abstract.
Sustainable Cities and Society,
Journal Year:
2020,
Volume and Issue:
62, P. 102382 - 102382
Published: July 13, 2020
The
COVID-19
pandemic
elicited
a
global
response
to
limit
associated
mortality,
with
social
distancing
and
lockdowns
being
imposed.
In
India,
human
activities
were
restricted
from
late
March
2020.
This
'anthropogenic
emissions
switch-off'
presented
an
opportunity
investigate
impacts
of
mitigation
measures
on
ambient
air
quality
in
five
Indian
cities
(Chennai,
Delhi,
Hyderabad,
Kolkata,
Mumbai),
using
in-situ
measurements
2015
For
each
year,
we
isolated,
analysed
compared
fine
particulate
matter
(PM2.5)
concentration
data
25
11
May,
elucidate
the
effects
lockdown.
Like
other
cities,
observed
substantial
reductions
PM2.5
concentrations,
19
43%
(Chennai),
41–53%
(Delhi),
26–54%
(Hyderabad),
24–36%
(Kolkata),
10–39%
(Mumbai).
Generally,
larger
traffic
volumes
showed
greater
reductions.
Aerosol
loading
decreased
by
29%
11%
4%
1%
(Mumbai)
against
2019
data.
Health
related
economic
impact
assessments
indicated
630
prevented
premature
deaths
during
lockdown
across
all
valued
at
0.69
billion
USD.
Improvements
may
be
considered
temporary
benefit
as
revitalising
economy
could
reverse
this
trend.
Regulatory
bodies
must
closely
monitor
levels,
which
currently
offer
baseline
for
future
plans.
Sensors International,
Journal Year:
2020,
Volume and Issue:
1, P. 100021 - 100021
Published: Jan. 1, 2020
India,
which
has
the
second-largest
population
in
world
is
suffering
severely
from
COVID-19
disease.
By
May
18th,
India
investigated
∼1
lakh
(0.1million)
infected
cases
COVID-19,
and
as
of
11th
July
equalled
8
lakhs.
Social
distancing
lockdown
rules
were
employed
however
had
an
additional
impact
on
economy,
human
living,
environment.
Where
a
negative
was
observed
for
economy
life,
environment
got
positive
one.
How
dealt
can
potentially
deal
with
these
three
factors
during
post
situation
been
discussed
here.
