This particular type of smog, often called the "London smog" or sulphurous smog, is a result of sulphur oxides in the air that are produced when fossil fuels like coal are burned. In a damp ...
There are two types of smog, Los Angeles smog and London smog (famous 1952 events). Los Angeles smog is a photochemical phenomenon caused by vehicle emission and has its origin in nitrogen oxides.
LAHORE: As smog continues to grip Punjab's capital Lahore, a three-year-old girl decided to take action over relevant officials' failure to prevent the worsening air pollution in the city.