Air Quality
The air quality of West Hills depends on the day and the time. As a result of the low levels of rainfall, and its presence in what amounts to be a valley, air pollution and smog can build up. During busier hours, notably the mornings and the afternoons when traffic is at its worst, the air quality will be worse. It is of a better quality than areas with more overtly urban infrastructures
Pollution
The greatest source of pollution in West Hills would be automotive vehicles, and the high volume of them that are present in the city. West Hills does not have a manufacturing base or other common sources of pollution, aside from cars.