Does anybody have knowledge on using pine needles in tea and such?

I have just learned that it is very beneficial. But got a bit scared when I read some are bad for you.

I have no knowledge of which pines grow here (Netherlands), let alone which to use and not to use or how to distinguish between both. Could use a little help on that.

I was thinking to get some from the christmastrees that will be thrown out in the next few weeks, which will lay around all over the city. But then I read they are often sprayed with chemicals and thereby unusable. Bummer.