![]() ![]() |
|
Unit 5: What is Wrong with Cities? Pollution Air pollution in urban areas mostly comes from the combustion of fossil fuels -- used in industry and for heating, electricity and cars. In many cities, the mix and concentration of air pollutants are already high enough to cause illness, especially to more susceptible individuals such as the elderly and the young. ![]()
Excessive levels of carbon monoxide, ozone and other
particulates lead to increases in respiratory and cardiovascular
diseases. Acute respiratory infections, tuberculosis and
other airborne infections are a major source of death and
ill-health in urban areas in the developing world. The highest
incidence tends to be in the poorest, most-crowded
areas. Overcrowding and poor ventilation can lead to multiple
members of families being infected.![]() SEE ALSO HOUSING, HEALTH, AND SAFETY AND CRIME ![]() OR RETURN TO TEXT |
![]() |
cyberschoolbus@un.org
|