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Factors of atmospheric pollution in the Aburrá Valley - Coggle Diagram
Factors of atmospheric pollution in the Aburrá Valley
Main Ideas and Key Information
Location: The Aburrá Valley, where Medellín is located, is a narrow valley surrounded by mountains.
Problem: Its geography traps air pollutants, making it hard for contaminated air to disperse.
Relevance: Air pollution has become one of the most urgent environmental problems in the region.
Main causes of air pollution
Geographical factors: the valley’s shape and limited wind circulation prevent pollutants from escaping, especially during dry seasons or thermal inversions.
Transportation: around 80% of air pollution comes from vehicle emissions (especially diesel buses and motorcycles).
Industrial activity: factories located within the metropolitan area emit particulate matter (PM2.5, PM10) and gases such as NO₂, SO₂, CO.
Meteorological conditions: certain weather patterns (low wind, high humidity, little rain) worsen pollution episodes.
Population growth: rapid urbanization and population increase → more vehicles, more energy consumption, more waste.
Air pollution in Medellín is a complex, multi-factor problem that requires coordinated action.
Reducing emissions will improve both public health and environmental sustainability in the city.
Consequences
Environmental: damages vegetation, contributes to climate change, and reduces visibility.
Social / Economic: public health costs rise; school and outdoor activities are sometimes suspended during critical pollution events.
Health: increases in respiratory diseases, asthma, cardiovascular problems, and premature deaths.
Monitoring and data
Medellín and the Aburrá Valley have a network of air quality monitoring stations (SIATA)
These stations collect real-time data on pollutants like PM2.5 and PM10.
Alerts are issued when pollution levels exceed safe limits.