Meerut has recorded an AQI of 451, Gurugram has an AQI of 395, Sirsa in Haryana has recorded an AQI of 347 and the AQI at Ghaziabad is 321. Ooty has recorded an AQI of 29, Nagercoil in Tamil Nadu has 21 AQI. The dismal situation exists across the country. The toxic air makes it very difficult for people in the city to breathe and poses severe health hazards.