2. What is pollution
Pollution is the introduction of contaminants into the natural
environment that cause adverse change.Pollution can take the
form of any substance or energy. Pollutants, the components of
pollution, can be either foreign substances energies or naturally
occurring contaminants. Although environmental pollution can
be caused by natural events, the word pollution generally implies
that the contaminants have an anthropogenic source — that is, a
source created by human activities. Pollution is often classed as
point source or nonpoint source pollution. In 2015, pollution
killed 9 million people worldwide.
3. Air pollution
Air pollution is a mixture of solid particles and
gases in the air. Car emissions, chemicals from
factories, dust, pollen and mold spores may be
suspended as particles. Ozone, a gas, is a
major part of air pollution in cities. When
ozone forms air pollution, it's also called smog.
Some air pollutants are poisonous
4. Water pollution
Water pollution is the release of substances
into bodies of water that makes water unsafe
for human use and disrupts aquatic
ecosystems. Water pollution can be caused by
a plethora of different contaminants,
including toxic waste, petroleum, and
disease-causing microorganisms.
5. Soil pollution
Soil contamination, soil pollution, or land
pollution as a part of land degradation is
caused by the presence of xenobiotic
chemicals or other alteration in the
natural soil environment. It is typically
caused by industrial activity, agricultural
chemicals or improper disposal of waste.
6. Noise pollution
Noise pollution is considered to be any
unwanted or disturbing sound that affects the
health and well-being of humans and other
organisms. ... Exposure to loud noise can also
cause high blood pressure, heart disease, sleep
disturbances, and stress. These health
problems can affect all age groups, especially
children.
