If you're worried about the mercury in fish [1] that you're about to eat then you may want to try Fish Phone [2], a cool new tool for your phone. All you have to do is text the message FISH and the name of the fish in question to 30644. Withing seconds, you'll get a return text with the Blue Ocean Institutes's [3] assessment and better alternatives to fish with significant environmental concerns. It's pretty cool — I tried it out and got a pretty detailed text back immediately. I'll definitely be using this when I am picking fish in the future.

Source [4]