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EPA’s final evaluation of the solvent n-methylpyrrolidone (NMP) greatly expands the list of industrial uses that pose unreasonable risks compared to the draft version, though the final analysis also narrows the consumer uses that pose such risks and maintains the Trump-era policy of not considering risks that could be addressed under other laws.

EPA Region 10 has told a mining company that reached a novel Superfund settlement late in the Trump administration to voluntarily clean up abandoned mining waste on lands it now controls that it does not have unlimited protection from liability under the Superfund law, rebuffing public statements by the company.

The Agency for Toxic Substances and Disease Registry (ATSDR) has released its final toxicological profile for per- and polyfluoroalkyl substances (PFAS), preserving without changes the minimal risk levels (MRLs) it proposed in 2018 -- all at levels more conservative than those EPA has used to craft its own exposure limits.

As California’s drought worsens, environmentalists are ramping up pressure on state water board officials to further curtail water diversions for agricultural purposes in order to maintain minimum river and delta levels for the survival of salmon and other aquatic species, even as the board identifies violations by state and federal agencies.

Environmentalists are strongly urging EPA to finally ban uses of chlorpyrifos, the widely used insecticide, after a federal appellate court panel ordered the agency to either ban the chemical or undertake a process for determining safe exposure levels that will protect children.

As California officials weigh new post-model year 2025 vehicle emission standards, environmentalists are urging them to adopt measures that ensure all new cars, trucks and SUVs are zero-emitting by 2035, echoing similar advocacy aimed at the Biden administration, which recently took steps to restore the state’s power to craft such standards.

California legislation that aims to significantly bolster the use of “green hydrogen” as a zero-emissions fuel for an array of energy, industrial and transportation purposes is hitting bumps over the fuel’s definition and concerns among environmentalists and some lawmakers over potential pollution from certain hydrogen production processes.