One nanogram is one-billionth of a gram. According to the survey, conducted in fiscal 2022 at 1,503 water purification facilities across the country, at least one site recorded PFAS concentrations ...

Clostridium botulinum, the botulinum. Or rather, the toxins released by this microorganism and other clostridia, anaerobic ...

This year’s SACE chemistry exam had a question or two that might even have stumped The Big Bang Theory’s resident physicists ...

Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access ...

At HUPO 2024, SCIEX, a global leader in life science analytical technologies, advances its high-resolution accurate mass ...

This is the 4nanograms (one nanogram representing a billionth of a gram) per litre of water recently promoted by the US Environmental Protection Agency. For context, highest PFAS level recorded ...

Wendell S. Parker, a Republican whose district includes the city of Lynchburg and parts of nearby Campbell County, introduced the measure to codify the 3-nanogram standard as proof of THC ...

In April, the U.S. Environmental Protection Agency announced a mandate that limits PFOS and PFOA levels in tap water to 4 nanograms per liter each (one nanogram is equal to one-billionth of a gram).