A
Yeah.
B
-- most of it is from cars.
A
Yeah. Definitely. Here in Utah up along the Wasatch MUMBLEx along the western side of the, of these Rocky Mountains here, where a lot of the big cities are Salt Lake and Ogden and Provo and Logan's up in the valley a little bit further north, we get a lot of pollution and it's like seventy percent of it is from cars.
B
Uh-huh.
A
And, uh, it always really hits hard during the winter when we get the inversion. And when we get,
B
.