My workplace's environment is not healthy?

I have just started my work recently and I have noticed that the environment in my workplace is not healthy. I can feel a certain tension between some of my co-workers. It was never hard to figure out since day one. I know it’s not my thing to get into, it’s just kind of disturbing most of the time. I love my work, however, it’s very tempting to leave sometimes and go somewhere else because of the negative environment. I’m not used to that kind of surrounding; it’s a foreign to me. I often get affected since I spend most of my time there. What should I do?