Dhaka air seventh most polluted this morning - Dainikshiksha

Dhaka air seventh most polluted this morning

dainikshiksha desk |

Dhaka has been identified as the city with the seventh most polluted air globally at 8:46 am on Friday, recording an Air Quality Index (AQI) score of 161, categorizing its air as “unhealthy”.

Pakistan’s Lahore, India's Delhi, and Uzbekistan’s Tashkent,, were ranked first, second and third with AQI scores of 180, 173, and 172 respectively, indicating a widespread air quality crisis across several major Asian cities.

The AQI scale reveals that values between 201 and 300 signify 'very unhealthy' air quality, directly impacting public health. This range indicates a high risk of adverse health effects, urging residents, especially those in vulnerable groups, to take necessary precautions.

Defined by the concentration of five major air pollutants — particulate matter (PM10 and PM2.5), nitrogen dioxide (NO2), carbon monoxide (CO), sulfur dioxide (SO2), and ozone — the AQI serves as a crucial tool for informing the public about daily air pollution levels and potential health implications.

Historically, Dhaka has struggled with persistent air pollution, experiencing the worst conditions during the winter months. Conversely, air quality sees relative improvement with the onset of the monsoon season, illustrating the seasonal dynamics of the city's environmental health challenges.

The World Health Organization (WHO) highlights the grave global health implications of air pollution, attributing approximately seven million deaths annually to air quality-related diseases. These include stroke, heart disease, chronic obstructive pulmonary disease, lung cancer, and acute respiratory infections, marking air pollution as a critical public health emergency.source:unb

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