Florida revisits arsenic issue. (C&D News).Florida's Department of Environmental Protection (FDEP FDEP Florida Department of Environmental Protection FDEP Functional Dependency FDEP Flight Data Entry Panel FDEP Functional Dependency Gate FDEP Federal Department of Environmental Protection FDEP Flight Data Entry Position FDEP Flight Data Entry & Printout ) has held a series of workshops on updated guidelines guidelines, n.pl a set of standards, criteria, or specifications to be used or followed in the performance of certain tasks. for concentrations of various chemicals that can be present in soil suitable for unrestricted use. These guidelines are widely used in determining suitability of soil materials in the state, including Recovered Screened Material (RSM RSM (in Britain) regimental sergeant major ), a product created by mixed C&D recyclers. The agency anticipates a regulatory adoption hearing in August. While there have been changes across the board for FDEP's risk-based values, those for arsenic arsenic (är`sənĭk), a semimetallic chemical element; symbol As; at. no. 33; at. wt. 74.9216; m.p. 817°C; (at 28 atmospheres pressure); sublimation point 613°C;; sp. gr. (stable form) 5.73; valence −3, 0, +3, or +5. are of the greatest interest to C&D recyclers, because treated lumber lumber, term for timber that has been cut into boards for use as a building material. The major steps in producing lumber involve logging (the felling and preparation of timber for shipment to sawmills), sawing the logs into boards, grading the boards according to and other sources can introduce trace amounts of arsenic to RSM. Recycling advocates had been concerned that the FDEP was relying on generic assumptions in calculating soil guidelines that have resulted in very low values for arsenic, similar to natural background levels in the state. Recyclers handling soil materials and RSM in Florida have complained that the application of the current guidelines for soil arsenic to these materials creates a stigma stigma: see pistil. Stigma mark of Cain God’s mark on Cain, a sign of his shame for fratricide. [O. T.: Genesis 4:15] scarlet letter that affects their markets even while some new soil materials, where naturally occurring arsenic can also exceed the current guidelines, are not subject to similar pressures or regulatory attention. The revisions are expected to address recycler concerns about limitations on materials that do not exceed natural levels of arsenic. Florida recyclers have supported the chemical-specific evaluation of soil arsenic and are expected to actively support incorporation of the recommended revisions during adoption hearings. |
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