News Tagged ‘crops

Why is toxic coal ash used to fertilize crops we eat?

We’ve all been told that eating fruits and vegetables can make us healthier. But some crops could make us sick. It’s the fertilizer that’s to blame. Farmers are being encouraged by the U.S. government to dust their fields with waste from coal-firing facilities. It’s a win-win situation, says the government. Coal ash helps loosen and fertilize soil for the farmers, and it helps reduce a waste disposal issue for the coal-firing plants.

That coal ash is a synthetic form of the mineral gypsum, produced by power plant “scrubbers” that remove sulfur dioxide from the smoke stack emissions. The chalky substance also contains mercury, arsenic, lead and other heavy metals that have been linked to serious health problems, like cancer, liver damage and neurological complications.

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EPA tests Lawrence County residents for potential toxic chemicals

It is not uncommon for industries to sell byproducts for profit. For example, the Tennessee Valley Authority sells some of the coal ash it produces, a byproduct from coal-burning, to companies for use as a filler in concrete in roads, bridges and concrete blocks; material for wallboard; granules for roofing shingles; grit for sandblasters; filler for recreation areas such as ball fields and industrial parks; and fertilizer for crops. It is considered safe for those uses even though coal ash has been found to contain dangerous toxins such as arsenic, lead, chromium, manganese and barium – materials that have been linked to serious health concerns like cancer, liver damage and neurological complications.

But sometimes materials that we think are safe for use are in fact harmful to humans. Consider this sad story now being played out in Lawrence County, Alabama.

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Environmentalists worry about safety of fly ash supplementing crop soil

December’s massive coal ash spill in east Tennessee has raised concerns over the safety of a longtime agricultural practice, according to Environmental Health News, a publication of the Environmental Health Sciences.

Crops in the Southeast and Midwest are grown in soil that has been routinely supplemented with tons of fly ash. Some of the more common crops grown in this amended soil include a variety of vegetables and peanuts.

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