The air quality hit very poor in India’s capital, New Delhi, after the fireworks used in the Diwali Festival of Lights. The air quality index rose above 400 to the “hazardous” level. The buildings engulfed in heavy smog in the capital. “Visibility has dropped to 200 meters in some parts of the city,” said RK Jemamani from the Indian Meteorological Department (IMD).
Air quality index values indicating the level of air pollution are classified as in the range of 0-50 “good”, 51-100 “moderate”, 101-150 “unhealthy for sensitive groups”, 151-200 “unhealthy”, 201-300 “very unhealthy” and 301-500 “hazardous”. Fireworks used during the festival worsen the level of air pollution in India every year.