Dhaka, the bustling capital of Bangladesh, has recently ranked 13th among the world’s cities with the worst air quality, with an Air Quality Index (AQI) score of 97 reported on a Sunday morning. This level is considered ‘moderate,’ meaning there is a slight health concern for sensitive individuals.
The AQI categorizes air quality into different levels. When the score is between 50 and 100, as we’ve seen lately, it falls into the ‘moderate’ range. In this case, those who are sensitive may want to limit outdoor activities. As the AQI rises, so do the health risks. Scores between 101 and 150 indicate conditions ‘unhealthy for sensitive groups.’ Anything above 150 escalates into ‘unhealthy,’ ‘very unhealthy,’ and, at extreme levels over 300, ‘hazardous.’
Globally, cities like Delhi, Lahore, and Shanghai lead the pack with alarming AQI scores of 446, 339, and 208, respectively. This highlights a serious concern not just for Dhaka but for many urban centers grappling with pollution.
The AQI provides valuable information about daily air quality, measuring five key pollutants: particulate matter (PM10 and PM2.5), nitrogen dioxide (NO2), carbon monoxide (CO), sulfur dioxide (SO2), and ozone. Understanding these factors can help residents make informed decisions for their health.
Historically, Dhaka has faced significant air pollution challenges. The air quality often worsens in winter and shows improvement during the monsoon season. This seasonal shift reflects ongoing environmental issues needing attention.
According to the World Health Organization (WHO), air pollution claims around seven million lives each year. It contributes to serious health conditions such as strokes, heart disease, and respiratory ailments.
Recent studies also show a connection between air pollution and mental health issues, emphasizing the need for urgent action. As cities expand and industrial activity increases, the importance of cleaner air cannot be overstated.
The issue of air quality is not just local; it’s a global concern. With rising reports of pollution-related health issues, many are turning to greener solutions. Community actions, advocacy for policy changes, and individual efforts can contribute to improving air quality.
Stay informed about the air quality in your area by checking reliable sources like the WHO or your local environmental agencies. Their insights can help keep you and your family safer in a world where clean air is becoming increasingly vital.
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