TOLEDO, Ohio — The Toledo Metropolitan Area Council of Governments (TMACOG), as well as the city of Toledo, is warning the public of health risks that come with increased ground-level ozone in the ...

Ground level ozone (O3) also tropospheric ozone, is a trace gas of the troposphere, with an average concentration of 20–30 parts per billion by volume (ppbv), with close to 100 ppbv in polluted areas.

As the weather warms up and an abundance of sunshine is welcomed, the Fort Carson community is encouraged to do its part to minimize peak ground-level ozone, which is an increased risk in the summer.

Ozone as a layer several kilometers up in the atmosphere protects living beings, including humans, from ultraviolet rays. But its accumulation at ground level can be very dangerous, Mongabay ...