Weather in south bay

Now almost everytime I drove to office, I can see fog/smoke in south bay area, it got me feel like the old days I drove to office in Beijing.

I think pollution caused by population is the main reason, plus south bay is a classic valley, thus pollution cannot be blew away.

Anyway it seems less beneficial of living here if weather is getting worse, now I’m feeling lucky that we chose Pleasanton which is still have perfect air condition, though somebody mentioned it is too hot in summer and too cold in winter.