Pollution is the introduction of contaminants into the
natural environment that cause adverse
change.Pollution can take the form of chemical
substances or energy, such as noise, heat or light.
Ancient Cultures
Air pollution has always accompanied
civilizations. Pollution started from prehistoric
times when man created the first fires.
According to a 1983 article in the journal
Science,etal forging appears to be a key turning
point in the creation of significant air pollution
levels outside the home.