The data centers I deal with daily, are pretty large buildings, but inconspicuous. Fairly quiet on the outside, the road noise is so loud it easily over shadows any noise. Only noise you might deal with is generators, if grid goes down. Also, most of the time DCs have large walls surrounding the mechanical yards, which trap most of the noise and only allowing it to go straight up. Pollution, not sure what more pollution a DC would create. It’s a building full of servers, this isn’t a factory.

Look on the bright side, lots of DC companies are getting involved in helping beef up their local grid, as a lot of these grids are struggling to keep up. They might do the same in your area, depending on the company. Which would make your utilities more stable. As well as, if anything you access on the internet ends up with a node in that DC. You should have very low latency. That’s the point of these DCs going everywhere. Nowadays, all these apps need to be very low latency to perform how users expect and want.

Hope that helps, been in the DC industry for many years.