1.   Another unknown, Brooks said, is whether the chemicals themselves would harm the Everglades somehow, perhaps by removing beneficial chemicals along with the phosphorus.

2.   At two of the locations, residents had to be evacuated while the chemicals were removed.

3.   After the chemicals are removed, the clean-up costs fall to the owner.

4.   Dangerous chemical emissions have reportedly dropped sharply, and manufacturers have voluntarily removed toxic chemicals from products such as typewriter correction fluid and fabric spot removers.

5.   Filtered coffee, Potter said, appears to remove the chemicals that can increase cholesterol levels.

6.   For extra safety, Cerus and Vitex require users to remove the chemicals from the blood before it is transfused.

7.   Home water filters intended to remove chemicals and other impurities may be leaching lead into glasses of water.

8.   Instead, ask the cleaner to remove the chemical and properly dry the garment.

9.   Larger water utilities, such as Kansas City and Johnson County water departments, spend millions of dollars to remove the chemical from drinking water.

10.   Last month, Psychemedics won a patent for a method of removing that chemical from hair before the testing.