In a stagnant air mass, ozone can rise to levels that irritate the eyes and throat and damage vegetation.
12.
The stagnant air doesn't move.
13.
Their ailments might be related not only to the heat, but to pollutants that accumulate in the warm, stagnant air.
14.
Stagnant air in the winter normally traps carbon monoxide near the ground, but storms should keep the air mixed up.
15.
And another violation of carbon-monoxide standards was expected Monday night as unseasonably warm and stagnant air hung low over metropolitan Phoenix.
16.
The county is in attainment of federal standards for ozone and inversion layer under a stagnant air mass, which traps pollutants underneath.
17.
This disrupts the flow and re-directs it rearward, while also causing the buildup of stagnant air inboard to lower the stall point.
18.
The stagnant air also encourages the accumulation of ground level air pollution _ conditions like those Atlanta has experienced several times this summer.
19.
Without this, the balloon could not have threaded its way around storms, mountain peaks, hostile airspace, unruly winds, stagnant air and other hazards.
20.
In addition to high temperatures, Tokyo was beset Thursday by a stagnant air pattern which trapped pollutants and created a thick layer of smog.
