Over 80% of people in cities are exposed to unsafe levels of air pollution

Modern cities often have high levels of pollution due to high emissions within them and poor ventilation due to building concentration.

Areas of very high pollution, “hotspots”, can occur across the city and pose increased risk to the health of its residents and workers.


What is a Pollution Hotspot?

high volume of people

+

high emission of pollution

+

poor ventilation

= pollution hotspot


In cities, the pollution we breathe comes from many sources including transport, industry and building emissions.


Harmful Urban Pollutants

NO2

Nitrogen Dioxide

Gas phase pollutant

PM

Particulate Matter

Solid or liquid state pollutant

Who is Most Affected by Air Pollution


Children

Pregnant Women

The Elderly

Public Transportation Users

Car Drivers

Residents and Employees on Busy Roads

Health Effects of Air Pollution

Brain

Stunts brain growth in fetuses, brain development in young children and cognition abilities in adults

Heart

Leads to cardiovasuclar diseases such as stroke and heart disease. Also can intensify existing conditions

Lungs

Stunts growth in children, reduces functioning capacity in adults, causes lung cancer and asthma

Resources

Websites


Reports


Scientific Texts

  • Chemistry and the Environment by S. E. Harnung and M. S. Johnson, Cambridge University Press 2012.

  • Air pollution and global warming: history, science, and solutions by M. Z. Jacobsen, Cambridge University Press, 2012.

  • Atmospheric chemistry and physics: from air pollution to climate change by J. H. Seinfeld and S. N. Pandis, John Wiley & Sons, 2016.