Which country ranked as the most polluted in the World Air Quality Report 2025?
Show answer & explanation
Correct answer: D
Explanation
Solution: The correct answer is Pakistan.
Explanation:
☛ In the World Air Quality Report, Pakistan was ranked as the most polluted country in the world based on average annual PM2.5 concentrations.
☛ This annual assessment is published by the Swiss air quality technology company IQAir.
☛ The report measures fine particulate matter (PM2.5), which poses the greatest health risk among airborne pollutants.
☛ High levels of industrial emissions, vehicular pollution, crop residue burning, and poor environmental regulations contributed to severe smog across Pakistani cities, particularly Lahore.
Extra Exam-Relevant Facts:
☛ Bangladesh: Historically ranked among the top most polluted nations due to heavy brick kiln emissions and vehicular exhaust.
☛ India: Ranked among the top polluted countries globally, with several Indian cities frequently appearing in the top 10 most polluted cities worldwide.
☛ China: Has significantly improved its air quality over the past decade through strict emissions control policies under its "War on Pollution".
☛ WHO Air Quality Guideline: The World Health Organization recommends an annual average PM2.5 threshold of no more than 5 µg/m³.
Important One-Liners for Upcoming Exams:
☛ Which organisation releases the annual World Air Quality Report? → IQAir
☛ What does PM stand for in the context of air pollution? → Particulate Matter
☛ Which size of particulate matter is considered the most hazardous to human health? → PM2.5
☛ Where is the headquarters of the United Nations Environment Programme (UNEP) located? → Nairobi, Kenya
☛ On which date is the 'International Day of Clean Air for blue skies' observed globally? → 7 September