Salts From Drilling, a Drinking Water Danger, Still Showing Up in Rivers from Essential Public Radio [of Pittsburgh]
"Bromides come from many places, including sea water, coal-fired power plants, and chemicals. But the Ohio’s spike in bromide occured three years ago, and Blaskovich thinks that’s no coincidence. “That’s when deep drilling for gas sort of took off in this area of the country,” he says."