Where does indoor and outdoor particle pollution come from?

Issue

• Where does indoor particle pollution come from?
• Where does outdoor particle pollution come from?

Applies to

• Air purifiers

Resolution

1. Sources of particle pollution in the home can be many. Some examples are:

• Burning wood or coal in an open hearth or a poorly vented stove
• Cigarettes
• Shedding of dead skin cells from humans, animals
• Opening of windows, doors or ventilation when outdoor air pollution is high
• Roasting of food in the oven or frying on a stove
• Using a gas hob
• Burning candles or incense

2. Sources of external air pollution may include:

• Burning fossil fuels incl. emission from vehicles
• Dust from construction sites, open or agricultural land
• Other industrial activities
• Smoke from waste burning, forest and wildfires
• Pollen dispersal during, after springtime