Today, Monday, Dhaka's air quality is rated as "unhealthy." At 9:23 AM, the city ranked fifth among 121 global cities, with an Air Quality Index (AQI) score of 161, indicating conditions harmful to sensitive groups.
Lahore, Pakistan, topped the pollution rankings with a staggering score of 545, categorizing its air quality as extremely "hazardous." Delhi, India, followed in second place with a score of 266, while Wuhan, China, ranked third at 187. Mumbai, India, secured fourth place with a score of 167.
Air pollution data is regularly reported by IQAir, a Switzerland-based organization. This live index provides real-time insights into air quality, effectively informing and alerting the public about pollution levels in specific cities.
An AQI score of 0 to 50 is classified as good, while scores between 51 and 100 are considered moderate. Scores from 101 to 150 are deemed unhealthy for sensitive groups, and those from 151 to 200 are categorized as "poor."
Scores between 201 and 300 are classified as "very unhealthy," leading to recommendations for children, the elderly, and individuals with health conditions to remain indoors. Others are advised to limit outdoor activities. Scores from 301 to 400 are deemed "hazardous," posing significant health risks to residents.
The AQI is typically calculated based on five types of pollutants: particulate matter (PM10 and PM2.5), nitrogen dioxide (NO2), carbon monoxide (CO), sulfur dioxide (SO2), and ozone (O3).
Bd-Pratidin English/ARK
