NEET BIOLOGY

Detailed explanation-1: -Smog is air pollution that reduces visibility. The term “smog” was first used in the early 1900s to describe a mix of smoke and fog. The smoke usually came from burning coal. Smog was common in industrial areas, and remains a familiar sight in some cities today.

Detailed explanation-2: -Air pollution is usually thought of as smoke from large factories or exhaust from vehicles. But there are many types of indoor air pollution as well. Heating a house by burning substances such as kerosene, wood, and coal can contaminate the air inside the house.

Detailed explanation-3: -Particle pollution represents a main component of wildfire smoke and the principal public health threat. “Particle pollution” (also referred to as particles, particulate matter, or PM) is a general term for a mixture of solid and liquid droplets suspended in the air.

Detailed explanation-4: -Smoke primarily consists of particles and can include other gaseous air pollutants, including nitrogen oxides, carbon monoxide, and hydrocarbons that may be toxic. Exposure to smoke can cause health effects and make existing health conditions worse.

Detailed explanation-5: -Pollutants of major public health concern include particulate matter, carbon monoxide, ozone, nitrogen dioxide and sulfur dioxide.