URL problem

Hi,
I have got problem with URL. In each URL on my website, ,,something,, (plugin? code?) from WordPress add to URL address any strange marks, on the end 🙁 Can you help me please?
Thanks much

Example
Good URL:
http://www.example.com/weather/

My case, wrong URL:
http://www.example.com/weather/#.VdBqsPntlB