Air Pollution – Brief Analysis for September 2023 - Section 1 – Data Analysis for period Jan 2022 to September 2023

• Air quality is poorer in Korba as compared to Delhi in September 2023 • The overall data for Korba shows that Korba Air is more polluted than Delhi for longer durations in the year. [...] • In comparison with September 2023 and 2022, AQI has decreased in Korba while it is same in Delhi • The different colour bands in the graph respond to the AQI categories as stated in the NAAQs (More later in the document) Monthly Average HI - Different Cities Jan- Feb- Mar- Apr- May- Jun- Jul- Aug- Sep- Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 23 23 23 23 23 23 23 23 23 Korba 19 24 29 36 4. [...] The smaller the size of the particles, the easier for it to enter the air stream of the body and cause more impact. [...] In both Delhi and Korba, the values were more than 4 times the values in some of the months. [...] The numbers in the map show the Average and Maximum AQI for each location along with the device number.