Question

Title for a generalized speech on air pollution

Answer 1

Answer:

Air pollution is a mixture of natural and man-made substances in the air we breathe.  It is typically separated into two categories: outdoor air pollution and indoor air pollution.

Outdoor air pollution involves exposures that take place outside of the built environment. Examples include:

Fine particles produced by the burning of fossil fuels (i.e. the coal and petroleum used in energy production)

Noxious gases (sulfur dioxide, nitrogen oxides, carbon monoxide, chemical vapors, etc.)

Ground-level ozone (a reactive form of oxygen and a primary component of urban smog)

Tobacco Smoke