Dhaka finds itself among the world’s most polluted cities, currently sitting at 13th place. This past Sunday, it recorded an Air Quality Index (AQI) score of 96. While this score is labeled as ‘moderate,’ it still poses some risks for vulnerable groups, like individuals with asthma.
In comparison, Johannesburg tops the list with an AQI of 170, followed by Kinshasa and Santiago with scores of 161 and 156, respectively. The AQI helps us understand air quality: scores from 101 to 150 are unhealthy for sensitive groups, 151 to 200 are unhealthy for everyone, and anything above 301 is considered hazardous.
In Bangladesh, air quality is assessed based on five main pollutants: particulate matter (PM10 and PM2.5), nitrogen dioxide (NO2), carbon monoxide (CO), sulfur dioxide (SO2), and ozone. Dhaka has faced air pollution challenges for years, with conditions typically worsening during winter and improving in the monsoon.
Globally, air pollution is a serious issue, leading to around 7 million deaths annually, according to the World Health Organization. Most deaths are linked to health problems like heart disease, stroke, and lung infections.
Experts point out that air pollution isn’t just a local problem; it’s a global crisis. Urban areas worldwide are facing similar challenges, leading to calls for stricter regulations and greener solutions. In recent surveys, many people expressed a desire to see more government action against pollution and a push for renewable energy sources.
To learn more about air quality trends and statistics, check out the World Health Organization report. Understanding these trends can help us advocate for cleaner air for everyone.
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