Recent rainfall in Dhaka has temporarily lowered the Air Quality Index (AQI) to 90, moving the city into the moderate category. The rain helped clear dust and airborne pollutants, improving the city's global pollution ranking. Bangladesh calculates its AQI based on five key pollutants, including particulate matter, nitrogen dioxide, and carbon monoxide. While the weather provided short term relief, the city continues to face significant air quality challenges.
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Rain is a temporary fix. We need to see actual policy on industrial emissions and vehicle standards if Dhaka wants to stay out of the top 20 most polluted cities.
Exactly. Relying on weather patterns isn't a strategy. The real question is whether there is a regulatory framework to limit PM2.5 and NO2 at the source.
The article mentions carbon monoxide and sulfur dioxide. I wonder how much of this is tied to old diesel generators running during grid instability in the city.
Probably a huge chunk. If the backup power is just dirty diesel, the air quality will tank again the moment the rain stops and the heat returns.
