Jayrizzo07

So I went through all the recently downloaded plugins, and nothing changed, then took all my plugins out and nothing changed...Is there anything else I can do? I'm getting kinda frustrated and am thinking about deleting the city. There is no smog in my other cities at all...

Here is the pic, I think it is a custom lot, the pollution is off the richter scale at 60000, up from 5, that doesn't happen in an almost totally clean city

I was playing my city, and all of a sudden there were huge health alerts from my sims, a brown haze took over my city and my population immediately dropped. I noticed my city had reached 250 years old, could this be the problem? and if so, how do i get rid of it?