Outdoor air pollution affects the health of everyone.
Air pollution is produced by people from things like transport, factories, farming, energy making and heating our homes. It is also produced naturally by things like sand and volcanic eruptions.
Air pollution can harm health, especially for children and young people, older people and those who already have health problems such as asthma.
The research below is set in Wales. It shows that people living in the most deprived parts of Wales may have higher levels of air pollution and may be more vulnerable compared with those who live in least deprived areas.
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