First, did you even look at that wire? According to the rohs report it contains lead. Second, you are still giving the numbers and labels a value they don't have.
Playing in the yard is worse for your kid than holding that wire.
http://www.epa.gov/region1/leadsafe/figure4.html
Here is an example of the EPA doing tests for how much lead is in your yard. Notice the 1000-2000 measurements being really common? Do you fear letting your kid play in the yard? Everything has to be considered using common sense. Going on a witchhunt against cords containing lead is about as stupid as when people went on a glass crushing rampage because they found out that there was uranium in vaseline glass.
While drinking a lead milkshake is probably bad, just like eating a piece of anything radioactive would be, you aren't going to have issues using those cords or drinking out of vaseline glass.