Essay on pollutants
Essay on Air Pollutants Air Pollutants Air pollution is one of the most significant environmental issues affecting the health of people and the planet. Air pollutants are substances in the air that can cause harm to humans and the environment. These pollutants can be natural or man-made and include a variety of different chemicals, particulates, and biological materials. The major air pollutants include particulate matter (PM), ground-level ozone (O 3 ), carbon monoxide (CO), sulfur dioxide (SO 2 ), nitrogen oxides (NOx), and lead. Each of these pollutants has unique sources and effects on health and the environment. Particulate Matter (PM) Particulate matter, especially particles smaller than 10 micrometers, can penetrate deep into the lungs and even enter the bloodstream. Sources of PM include construction sites, unpaved roads, fields, smokestacks, and fires. Fine particulate matter (PM 2.5 ) is parti