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The word “Smog” is a combination of the words “smoke” and “fog”, which was coined in 1900s in London.1The city experienced its week long episode of “killer smog” in December 1952 leading to increased morbidity and mortality that was attributed to smoke from coal combustion.2Being fast learners, remedial actions were adopted by concerned authorities which saw an improvement in air quality from a mean annual PM10 levels (particulate matter ≤ 10 μm in diameter)of approximately 3,000 μg/m3 in December 1952 to 30 μg/m3 in 2002.
Fatima Mukhtar, . (2018) THE RISING MENACE OF SMOG: TIME TO ACT NOW, JOURNAL OF AYUB MEDICAL COLLEGE ABBOTTABAD, Volume 30, Issue 1.
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