A series of other steps will be triggered by particularly high levels of low-level ozone pollution.

Where should I live to avoid ozone pollution?

The state has already exceeded the Federal standard for ozone pollution more times this year than it did in each of the last seven years.

Each year they must provide additional information on ozone pollution, especially concerning exceedances of the long-term objective.

This year is shaping up as the worst in a decade for ozone pollution.

If so, the higher temperatures will make the outlook for reducing ozone pollution bleak.

Exhaust and vapors from factories is another major source of ozone pollution.

Three teams of researchers conducting separate studies have concluded that high ozone pollution is linked to higher death rates.

But most surprising, he said, was the high ozone pollution right above the forest.

This summer, the records for ozone pollution have been broken in all Member States.