Summary
Lab experiments found that 222 nm light can create ozone, hydroxyl radicals and secondary organic particles indoors. In a limonene-rich setting, the resulting chemistry can be much stronger than normal indoor levels.
Key points
- 222 nm light produces ozone and hydroxyl radicals in indoor air.
- Secondary organic aerosol forms when the light reacts with indoor chemicals such as limonene.
- Effects depend on room ventilation and what is in the air.