What is a slum?
This is a part of a city where the houses are dirty and in bad condition.
Slum
These tiny particles in the air are measured to tell us how clean the air is.
What is Particulate Matter (or PM)?
This is the process of more and more people moving from rural areas to cities.
What is Urbanization?
Cars, vans, trains, and planes are examples of these that release harmful gases into the air.
What are vehicles (or traffic)?
Air pollution particles are smaller than this single part of your body.
What is a piece/strand of your hair?
Slums often lack basic needs like electricity, schools, and this important clear liquid.
clean water
This is the index (or number) used to measure air quality and tell us if the air is safe to breathe.
What is the Air Quality Index (AQI)?
Cities are better than rural areas because children have better survival rates due to better access to this.
What is healthcare (or medical help)?
Burning these types of fuels, like coal or oil, creates pollution in the air.
What are fossil fuels?
PM2.5 is 40 times smaller than this tiny object found on a beach.
What is a grain of sand?
A person who illegally builds a house on land that doesn't belong to them is called this.
squatter
This color on the AQI chart means the air quality is "Good" and it's a great day to be outside.
Green (or 0-50)
This problem happens when cities have too many cars, causing long waits on the roads.
What is traffic congestion (or traffic jams)?
Factories and power plants burn fossil fuels to make this, which we use to power our homes.
What is energy (or electricity)?
Exposure to air pollution can damage a child's health and their physical and this other kind of development.
What is mental development?
This very high number of people in the world currently live in slums.
more than one billion people
When the AQI is between 101 and 150, people with heart or lung disease belong to this type of group.
What is a Sensitive Group?
This term means using up resources like water or fuel until there is not much left for people in the future.
What is resource depletion?
These gases act like a blanket in the sky, trapping the sun's heat. Too many can cause climate change.
What are greenhouse gases (GHG)?
Slums can create an environment for diseases like cholera and tuberculosis because the environment is very filthy and unclean.
What is a health hazard?