"Lung issues, that's the first thing that you think about, and that you're breathing this in," Jeske said.
We Energies said it voluntarily installed an air quality monitoring station about one mile South of the Oak Creek plant in 2016.
The results are posted online monthly and available to the public here.
Miranda Ehrlich, of the Clean Power Coalition of Southeast Wisconsin, said her organization would also like to see air quality monitored in the neighborhood to the North of the plant, where Millard and Jeske live.
The group sent a letter to We Energies calling for the additional monitoring station, among other things, in January.
"I don't think it's safe, personally," Ehrlich said.
The company said a previous air monitor in that area was removed because of low data results, and that a monitoring station located to the North of the facility was unlikely to capture the predominant winds in the area.
A spokesperson for We Energies added that, for the time being, the company will not be adding coal to the existing piles near the power plant so as to minimize coal dust.
We Energies added it is also using water technology to suppress and minimize coal dust in the area.