GENERAL KNOWLEDGE

Detailed explanation-1: -Pollutants with the strongest evidence for public health concern include particulate matter (PM), carbon monoxide (CO), ozone (O3), nitrogen dioxide (NO2) and sulfur dioxide (SO2). Health problems can occur as a result of both short-and long-term exposure to these various pollutants.

Detailed explanation-2: -Nitrogen Dioxide NO2 is the most harmful of these compounds and is generated from the combustion of fuel engines and industry. It can damage the human heart and lungs and it reduces atmospheric visibility at high concentrations.

Detailed explanation-3: -What are the health consequences of air pollution on populations? Exposure to high levels of air pollution can cause a variety of adverse health outcomes. It increases the risk of respiratory infections, heart disease and lung cancer.

Detailed explanation-4: -Air pollution also increases the risk of respiratory infections, heart disease, stroke, and lung cancer, and more severely affects people who are already ill.

Detailed explanation-5: -Air pollutants, such as methane and black carbon, are powerful short-lived climate pollutants (SLCPs) that contribute to climate change and ill health . Although SLCPs persist in the atmosphere for short lifetimes, their global warming potential is often much greater than carbon dioxide (CO2).