The agency went against recommendations from its own scientists that a stronger standard could save lives. Pa. is one of four states that don't meet the current standard.
A researcher found ticks with the bacteria that causes Lyme disease in Pittsburgh's parks. He says there's a risk of getting the disease at any urban or suburban park in the region.
Murray’s companies fought against safety rules meant to prevent the fatal disease. He ran the largest privately-owned underground coal mining company in the US.
Researchers found elevated levels of radioactivity on air particles measured downwind of fracking sites around the country. They say health effects are possible, though not imminent.
