DfE Eutrophication





The total level of phosphorus in the cleaning product will be limited to a maximum level of 0.5 weight % in the cleaning product as sold (measured as elemental phosphorus). Inorganic phosphates as defined by the US EPA New Chemicals Program [104] cannot make up any portion of the 0.5 weight % of phosphorus.


Note: Inorganic phosphates as defined by the US EPA New Chemicals Program [104] will not be allowed in DfE-labeled products due to their potential to contribute to eutrophication of fresh water and estuarial ecosystems. Eutrophication is a priority concern for EPA scientists, and inorganic phosphates create a greater concern for eutrophication than alternative Chelating and Sequestering Agents used for this purpose. Given that the majority of DfE-labeled products are disposed of down the drain, they end up in wastewater streams. EPA acknowledges contributions to the phosphorus load from cleaners are relatively small in comparison with other sources and that eutrophication is not an issue in all locations. The EPA policy is consistent with a commitment to reduce contributions of inorganic phosphorus from DfE-labeled products regardless of concentration.

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