Segments corresponding to different kinds of rural roads and interstate highways are included. The test simulates a 10-mile trip and averages 48 mph. These compounds react in the atmosphere in the presence of sunlight to form ozone. They can also cause eye irritation and impair lung function above certain threshold levels. A compound produced by chemical reactions in the presence of sunlight.
Ozone can cause eye and lung irritation.
Ozone has very different effects in the environment depending on where it occurs. In the stratosphere, the ozone layer acts to shield the earth from harmful ultraviolet rays from the sun. However, at ground level, ozone is a pollutant. The portion of specific product or material that can be diverted from the waste stream and returned to use as a functioning part or raw material for the manufacture or assembly of a new product through a process that is both presently and widely available. The portion of a material or product's weight that is composed of materials that have been recovered from or otherwise diverted from the waste stream, either during the manufacturing process or after consumer use.