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Real-Life Communication

A manufacturing company executive calls your company, Smart Root Consulting. She's heard that phytoremediation can be cheaper than traditional cleanup methods. Her company sometimes has to deal with areas contaminated by metals.

She doesn't know anything about this new and developing field. She wants you to explain, as simply as possible, your company's method.

Use the following information to write a brief summary of your method.

"It turns out that certain plants are actually better at stimulating degradation of oil. The study was to figure out whether these plants could enhance remediation of contaminated sites. It also applies in terms of metal contaminated soils.

"We were just looking at hydrocarbons here. However, there are certain plants that are hyper-accumulators of metals. So, if you have a site that's contaminated with heavy metals like mercury or lead, you can use plants to actually accumulate metals into their tissues -- but not in the roots.

"You can get them to accumulate it up into the stem, into the leaves. Then you can get them to accumulate them in concentrations far in excess of the concentrations in the soil. So, if you've got 10 parts per million in the soil, you can get them to accumulate 2,000 parts per million in the tissue."

The above information is a quote by wetlands expert Angus Chu. He was describing a study by one of his graduate students.

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