Several years ago coal ash from power plants was given a non-hazardous rating. Since then, technology has improved the quality of the smoke released into the air from coal-firing plants. The toxins that used to escape into the air are now kept in the ash left behind. Tests have shown that coal ash contains dangerous toxins such as arsenic, lead, chromium, manganese and barium, which have been linked to serious health conditions such as cancer, liver damage and neurological complications.

Environmentalists have tried over the years to have coal ash reclassified as a hazardous material, but little was done to push that effort until last year when a coal impoundment pond in east Tennessee breached, sending a massive wave of coal ash on to a neighboring community. The 1.1 billion gallons that spilled out toppled houses, destroyed property and contaminated the nearby Emory River. Several residents were displaced, but it is the health risk that concerns many of the people affected by the spill. Some have reported respiratory problems and heightened anxiety. Others, including a young child, have tested positive for heavy metal in their bloodstream.

Environmentalists and activists are urging the EPA to carefully consider how it will categorize both wet and dry coal ash impoundments. “Both pose a threat to human health and the environment so it doesn’t make sense to create that dichotomy (between wet and dry ash storage regulation),” said Lisa Evans, an attorney with Earthjustice, in an interview with the Tennessean.“We would not think that would be a protective scheme, with the many cases where dry disposal has caused contamination of groundwater and surface water.”

SOURCE: Coal Ash Spill › EPA considers hazardous material classification of coal ash

Cancer rates

The EPA screening study conducted in 2002 was not made public until March 4, 2009. Numerous attempts to get the information made public through the Freedom of Information Act to the EPA during the Bush Administration were denied or released with the risk estimates blacked out. The data finally made public after seven years shows that cancer risk is substantially higher for up to one out of every 50 Americans living near wet ponds used to dispose of ash and scrubber sludge from coal-fired power plants across the United States.

The analysis focuses on 100 landfills and 110 surface impoundments examined by the EPA that lack effective synthetic liners to prevent leaks as the EPA found unlined and clay-lined waste units present far greater risks to both human health and ecosystems. These high-risk coal ash dump sites are in more than 35 states.

According to the report: “Can living next to one of these dumpsites increase your risk of getting cancer or other diseases? The U.S. Environmental Protection Agency (EPA) thinks so, especially if you live near one of those wet ash ponds, or surface impoundments, that dot the landscape near large coal plants, the pond has no protective liner, and you get your drinking water from a well … (N)earby residents have as much as a 1 in 50 chance of getting cancer from drinking water contaminated by arsenic, one of the most common, and most dangerous, pollutants from coal ash. And that’s not all. That same risk assessment says that living near ash ponds increases the risk of damage to the liver, kidney, lungs and other organs as a result of being exposed to toxic metals like cadmium, cobalt, lead, and other pollutants at concentrations far above levels that are considered safe. In addition, the danger to wildlife and ecosystems is simply off the charts, with one contaminant—boron—expected to leach into the environment at levels two thousand times thresholds generally considered to be safe.”

SOURCE: Coal Ash Spill › Study: Cancer risk ‘disturbingly’ higher near coal ash ponds