The Environmental Protection Agency (EPA), Superfund program considers the amount of radon gas entering homes and buildings from reclaimed phosphate mine lands. Its decisions regarding whether to remediate man-made radioactive contamination sites are usually driven primarily by how much of the radioactive metals are present, in this case, a reclaimed Florida phosphate strip mine.
Decreases the toxic effect of NaCl salinity: Calcium from gypsum has a physiological role in inhibiting the uptake of sodium by plants. Thus plant are mitigate the sodium toxicity, which is more pronounced in the salt affected soils.
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Each alarm shall run on both permanent 120V and replaceable battery, shall feature a combination of ionization and photoelectric sensors, shall not disconnect by wall switch, and shall be connected to a 120V line as first load on a frequently used lighting circuit with overcurrent protection at the panelboard suitable for a double tap.
Increases water retention in soil: Gypsum when applied to sodic soil reduced the levels of exchangeable sodium resulted in increase in water retention. The improved soil structure help in the more retention of water.
Florida Phosphate Industry Refusing To Accept Safety Standard In its 2006 report, the U.S. Agency for Toxic Substances and Disease Registry stated the federal government has relied upon the ”five picocuries” per gram (radiation/mass) of soil standard at many sites and listed some in Pennsylvania, New Mexico, New York and Michigan as examples. These areas produce little phosphate rock relatively to Florida. However, Florida officials considered the threshold to be ”overly conservative,” the federal agency’s report noted.
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