The role of environmental factors in the transmission of COVID-19 still needs to be determined The main objective of the present study is to explore the relationship between environmental factors (both meteorological and air pollution parameters) and the daily confirmed COVID- 19 cases over Delhi, India This study employed a secondary data analysis of COVID-19 (from 1 March to 30 June, 2020) from the Delhi State Health Bulletin and the environmental factors from the Indian Meteorological Department (IMD) and Central Pollution Control Board (CPCB) of India Pearson's correlation coefficients were assessed to show the correlation between environmental factors and daily confirmed COVID-19 cases The temperature (maximum, minimum, average, and dew point) and wind speed exhibited a significant positive correlation with daily COVID-19 cases However, diurnal temperature range, rainfall, and relative humidity showed non-significant correlations Air pollutants were found to be weakly associated with daily COVID-19 cases However, O-3 exhibited a significant positive correlation with daily COVID-19 cases in Delhi The probability distribution analysis reveals that approximately 80% of the total confirmed cases were registered when the average temperature was higher than 30 degrees C The present study finds a prominent relationship between different environmental factors and COVID-19 transmission in Delhi However, further detailed analysis over different parts of entire India is required to get a complete picture and solid conclusion
Plausible Role of Environmental Factors on COVID-19 Transmission in the Megacity Delhi, India