On September 14, 2026, EPA published a Request for Information seeking public input on updates to test methods and waste sampling guidance under the Resource Conservation and Recovery Act. Comment ...

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The following document outlines the atomic absorption procedure for determining 3 to 750 microgram per liter (µg/L) concentrations of selenium in wastes, mobility procedure extracts, soils, and ground ...

I grew up using bar soaps to shower in my childhood home, and though I briefly switched to liquid body washes, I am fully back on the bar soap train. That is, in part, because of all the testing done ...