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Air and Water:  

Other Uses for Phosphogypsum


Currently approved uses for phosphogypsum require about 500,000 metric tons per year. This is only a small fraction of the almost 40 million metric tons that are added to phosphogypsum stacks each year and does nothing to reduce the 1 billion or more metric tons that have accumulated in stacks. In response to the need for new ways to make use of phosphogypsum, EPA has provided a process by which researchers may apply for approval from EPA for new uses. Section 206 of Subpart R, "Distribution and use of phosphogypsum for other purposes," lays out the process.

What information on applying for approval of other uses is available here?

The Other Uses section of the Subpart R Home Page provides information on the following topics that may be of interest to other use applicants:

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