We keep reading or hearing about air pollution and its deadly effect on our health and environment. More recently, we have also been hearing this new abbreviation being mentioned quite regularly: AQI – or Air Quality Index. As the name suggests, AQI is nothing but a report on the quality of air that we are breathing in a particular place – it informs us and the authorities how polluted the air is, so that a decision can be taken on the measures to control the pollution level...