Something's In the Air - The Big Picture

Ozone and Pine Trees: Sickened by Ozone Air Pollution

Looking up at a large pine

n the Sierra, some ponderosa and Jeffrey pine trees are hundreds of years old and tower over a hundred feet in the air. Not much can kill these mighty giants. Unfortunately, these magnificent trees are sensitive to ozone air pollution. At the concentrations presently found in the Sierra, ozone can weaken one of these trees enough to trigger its eventual death.

Click on a choice:

Sickened by Ozone

The Damage

Ozone Pollutants

The New Danger

Damaged trees

Next - The ozone effect, chlorotic mottle...