_______________ + _______________ + heat/sunlight 🡪 Photochemical smog

Nitrogen oxides peak during the ___________ part of the day.
Ozone concentrations peak during the ____________ part of the day.
Why does ozone peak at this time of the day?
Volatile organic compounds are named that because ____________________________________________________________________________________________________________________________________________________________

- Automobile exhaust + sunlight 🡪 Photochemical smog

- Nitrogen oxides peak during the daytime part of the day.
- Ozone concentrations peak during the afternoon part of the day.
- Ozone peaks at this time of day because sunlight and heat provide energy for the chemical reactions that create ozone from nitrogen oxides and volatile organic compounds.
- Volatile organic compounds are named that because they easily evaporate into the air at room temperature.