Muyabia Labony; DHAKA – Air quality in Bangladesh’s capital, Dhaka, continues to fluctuate this month, ranking 8th among the world’s most polluted cities today, Sunday (April 19). According to IQAir, a global air quality monitoring organization, Dhaka recorded an Air Quality Index (AQI) score of 122, which is classified as “unhealthy” for sensitive groups.
This marks a decline from Saturday, when Dhaka’s air quality was relatively better with a score of 92, ranking 23rd globally.
Regional Comparison
India’s capital, Delhi, currently sits at the top of the list with a hazardous score of 454, posing severe health risks to its residents. Other Indian cities show varying levels: Kolkata ranks 18th with a score of 102 (unhealthy for sensitive groups), while Mumbai ranks 23rd with a score of 91, considered “moderate.”
Global Rankings
The top 10 list is currently dominated by four Chinese cities:
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Chengdu: 156 (5th)
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Shenzhen: 152 (7th)
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Hangzhou: 124 (9th)
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Guangzhou: 124 (10th)
Additionally, Chiang Mai (Thailand) holds the 2nd position with a score of 191, followed by Kathmandu (Nepal) in 3rd with 178, and Hong Kong in 8th (tied) with 152.
According to AQI standards, a score of 0–50 is considered “good,” while scores above 100 signify increasing health risks for the public.
AQI Reference Scale
| Score | Classification |
| 0 — 50 | Good |
| 51 — 100 | Moderate |
| 101 — 150 | Unhealthy for Sensitive Groups |
| 151 — 200 | Unhealthy |
| 201+ | Very Unhealthy/Hazardous |