Grass Removes Lead from Soil
About 250,000 children in the United States have high levels of lead in their systems, say the Centers for Disease Control. Children under the age of 6 are especially vulnerable to lead poisoning, which can severely affect mental and physical development. At very high levels, lead poisoning can be fatal. Most people know that old paint (from before 1978) can contain high amounts of lead and that children can be poisoned by ingesting paint flakes. But that paint can also slough off into neighboring soils, creating a hazard for gardeners — and children playing in the dirt.
Now, a biologist at Michigan Technological Univ. is working on a way to remove lead from soil that is simple, inexpensive, and, quite literally, green.
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