A
Right. Yeah, I think the automobile definitely is an area and any, any industry that burns, you know, and then I don't know about chemical pollution. I'm not real into that as far as how it affects the air. I know we have a lot of chemical, the indoor type pollution. They have offices that are too well insulated. They found people are getting sick,
B
Yeah.
A
but I don't know if that affects outside. You know, I, I think, seems to think, seems to me that's what they were asking about was outside and the thing I can, the only thing I can think of would be cars and factories.
B
Yeah, the smokestacks or the exhaust pipes.
A
Yeah.
B
Um, I guess there's been a lot of pressure to, um, do away with the C F C's in these spray bottles which,