Climate experts are keenly observing increasing air pollution and they are keeping records regarding the changes. As per the latest report of the air quality and pollution city tracking service from IQAir, there are as many as three cities from India on the list of ten cities with the worst air quality indices. IQAir is a climate group based in Switzerland that is also a technology partner of the United Nations Environmental Program.
According to IQAir report, India’s capital city Delhi stood at the top list with an average air quality index of 556 according to data available from the same site, Noida’s AQI stood at 405 while Ghaziabad’s at 427.
However, Delhi is facing severe pollution and it is likely to have low visibility for the next few days said Senior Scientist of the Indian Meteorological Department (IMD). In view of the increasing air pollution, the authorities in the cities have suggested the residents to stay indoors and limit the outdoor activities. Experts warned that polluted air severely threatens to affect those with existing diseases.
Not only Delhi, the cities like Kolkata and Mumbai also recorded poor levels of air pollution. Authorities in Delhi have also asked citizens to cut vehicle use by at least 30 percent as air quality in Delhi-NCR inched towards the emergency level amid a rise in emissions from farm fires and unfavorable meteorological conditions.
As per the analysis by the Decision support system(DSS), paddy stubble fires contributed to 15 percent of Delhi’s PM 2.5. Here is the full list by IQAir of cities with the worst air quality indicators:
1. Delhi, India (AQI: 556)
2. Lahore, Pakistan (AQI: 354)
3. Sofia, Bulgaria (AQI: 178)
4. Kolkata, India (AQI: 177)
5. Zagreb, Croatia (AQI: 173)
6. Mumbai, India (AQI: 169)
7. Belgrade, Serbia (AQI: 165)
8. Chengdu, China (AQI: 165)
9. Skopje, North Macedonia (AQI: 164)
10. Krakow, Poland (AQI: 160)
As per the report, an AQI between zero and 50 is considered ‘good’, 51 and 100 ‘satisfactory’, 101 and 200 ‘moderate’, 201 and 300 ‘poor’, 301 and 400 ‘very poor’, and 401 and 500 ‘severe’, Hindustan Times reported. However, the AQI index is changing as per situations and different organizations calculate averages in different ways.