Figure 6. Correlation matrix analysis of AQI values in 2020 (Significance level (p) is marked with ‘*’, ‘**’, ‘***’ explaining significance levels (p) of 0, 0.001, 0.01 respectively and correlation value (r) is denoted with the values in between +1 and -1 expressin, +1: Perfectly linear positive correlation, -1: Perfectly linear negative correlation and 0: No correlation between two variables)

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A Tale of Air Quality Index (AQI) in India: Pre- and during the COVID-19 Pandemic

Pooja Baweja, Haritma Chopra, Pinkey B. Gandhi, Sandhya Gupta, Nisha Poddar, Sakshi Suman, Vikas Rena

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