Volunteers say smog and soot are two of the most dangerous forms of air pollution.
The volunteers are standing on the trail holding signs and reading slogans such as "Dangerous, unsafe to breathe."
Their goal is raise public awareness of the need for stronger EPA protections against soot and smog. They're trying to collect signatures from people passing by for a petition that would encourage GenOn to shut down the 62-year-old plant.
Volunteers say smog and soot are two of the most dangerous forms of air pollution. And one thing they’re really focusing on is just how serious those pollutants can be for people who suffer from asthma.
That's especially a concern for summer months when ground-level ozone, which is also smog, is at its worse.