The "Good" ozone that protects us from some of the radiation from space is located in the stratosphere some 10-30 miles up in the atmosphere. The "Bad" ozone that affects our health and our tires is in the troposphere from ground level up to 10 or so miles. It is the same O3 30 miles up, but we nor our tires are affected by it. That being said, keeping your tires for a couple of years should be no problem.
