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Abstract
Aim:
This
study explores the relationship between ground-level ozone and key
meteorological parameters in Aizawl, Mizoram over a period from March 2022 to
February 2023.
Methodology: Secondary data on
ozone concentrations and meteorological parameters were analysed using SPSS
tool and Excel to investigate the seasonal variability of ground-level ozone
concentrations, and to examine diurnal variations to identify peak ozone
levels occurring at specific time intervals within 24 hours. It also analysed
the correlation between ground-level ozone concentrations and key
meteorological parameters such as temperature, humidity, and wind speed.
Results: Seasonal and
diurnal variations showed that ozone concentrations were highest in summer
(33.34 µg m-3) and lowest in winter (7.04 µg m-3), with
peak levels during morning hours (06:00 am to 11:59 am). Correlation analysis
and multiple linear regression models were employed to determine the impact
of these variables on ozone levels. Temperature had a weak positive
correlation with ozone (r = 0.275, p = 0.214), while rainfall (r = -0.273, p
= 0.024) and humidity (r = -0.142, p = 0.018) exhibited significant negative
correlations.
Interpretation: Ground-level
ozone is a secondary pollutant produced due to human activity and has the
potential to influence meteorological parameters, as well as climate change.
Key
words:
Ground level ozone, Humidity, Rainfall, Temperature
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