#pfos

[greenfue]

خطر يهدد عسل النحل.. كيماويات سامة تتراكم في النحل وينتقل إلى العسل

خطر يهدد عسل النحل.. كيماويات سامة تتراكم في النحل وينتقل إلى العسل

[wausaupilotreview]

Health risks may increase when fish and wildlife with high levels of PFAS are consumed. These can include increased cholesterol levels, decreased immune response, and decreased fertility in women, among other health effects.

DNR, DHS issue new PFAS-based consumption advisories for fish, deer near town of Stella, surrounding Oneida County waterbodies

[greenfue]

خريطة عالمية تكشف أخطر مناطق تلوث المحيطات بالبلاستيك

أصبح تلوث البلاستيك أحد أخطر التهديدات البيئية على كوكب الأرض، ونشر علماء جامعة تولين أول تقييم عالمي يحدد المناطق التي تشكل فيها البلاستيك أخطر المخاطر البيئية على النظم البحرية. كشفت الدراسة أن المناطق الأعلى خطورة ليست دائمًا “رقع القمامة” حيث يتجمع البلاستيك بشكل واضح، بل غالبًا الأماكن التي يتداخل فيها البلاستيك مع الكائنات البحرية الكثيفة والملوثات، ما يعني أن المياه ذات مستويات البلاستيك…

خريطة عالمية تكشف أخطر مناطق تلوث المحيطات بالبلاستيك

[thoughtlessarse]

How 3M Discovered, Then Concealed, the Dangers of Forever Chemicals

The company found its own toxic compounds in human blood—and kept selling them.

Kris Hansen had worked as a chemist at the 3M Corporation for about a year when her boss, an affable senior scientist named Jim Johnson, gave her a strange assignment. 3M had invented Scotch Tape and Post-it notes; it sold everything from sandpaper to kitchen sponges. But on this day, in 1997, Johnson wanted Hansen to test human blood for chemical contamination. Several of 3M’s most successful products contained man-made compounds called fluorochemicals. In a spray called Scotchgard, fluorochemicals protected leather and fabric from stains. In a coating known as Scotchban, they prevented food packaging from getting soggy. In a soapy foam used by firefighters, they helped extinguish jet-fuel fires. Johnson explained to Hansen that one of the company’s fluorochemicals, PFOS—short for perfluorooctanesulfonic acid—often found its way into the bodies of 3M factory workers. Although he said that they were unharmed, he had recently hired an outside lab to measure the levels in their blood. The lab had just reported something odd, however. For the sake of comparison, it had tested blood samples from the American Red Cross, which came from the general population and should have been free of fluorochemicals. Instead, it kept finding a contaminant in the blood. Johnson asked Hansen to figure out whether the lab had made a mistake. Detecting trace levels of chemicals was her specialty: she had recently written a doctoral dissertation about tiny particles in the atmosphere. Hansen’s team of lab technicians and junior scientists fetched a blood sample from a lab-supply company and prepped it for analysis. Then Hansen switched on an oven-size box known as a mass spectrometer, which weighs molecules so that scientists can identify them. As the lab equipment hummed around her, Hansen loaded a sample into the machine. A graph appeared on the mass spectrometer’s display; it suggested that there was a compound in the blood that could be PFOS. That’s weird, Hansen thought. Why would a chemical produced by 3M show up in people who had never worked for the company?

continue reading

Turns out they knew as far back as the late 1950s.

[wild-neko]

Calls for action after cancer-causing chemicals found in Australia's drinking water

The contaminants, perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA), have been found in ta...

Experts say Australians should use water filters after drinking water in parts of the country was found to contain dangerous cancer-causing chemicals.

The contaminants - perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA) - have been found in tap water in every state and territory, The Sydney Morning Herald and The Age reported today.

Australian water contains contaminants that US authorities warn are likely to be carcinogenic, with "no safe level of exposure".

[mea-cuppa-part-2]

How 3M Execs Convinced a Scientist the Forever Chemicals She Found in Human Blood Were Safe — ProPublica

Toxic Gaslighting: How 3M Executives Convinced a Scientist the Forever Chemicals She Found in Human Blood Were Safe

Decades ago, Kris Hansen showed 3M that its PFAS chemicals were in people’s bodies. Her bosses halted her work. As the EPA now forces the re

“When you have a contaminated site, you can clean it up,” Elsie Sunderland, an environmental chemist at Harvard University, told me. “When you ubiquitously introduce a toxicant at a global scale, so that it’s detectable in everyone ... we’re reducing public health on an incredibly large scale.” Once everyone’s blood is contaminated, there is no control group with which to compare, making it difficult to establish responsibility.

In 2022, 3M said that it would stop making PFAS and would “work to discontinue the use of PFAS across its product portfolio,” by the end of 2025 — a pledge that it called “another example of how we are positioning 3M for continued sustainable growth.” But it acknowledged that more than 16,000 of its products still contained PFAS. Direct sales of the chemicals were generating $1.3 billion annually. 3M’s regulatory filings also allow for the possibility that a full phaseout won’t happen — for example, if 3M fails to find substitutes.

[mizelaneus]

How 3M Discovered, Then Concealed, the Dangers of Forever Chemicals

The company found its own toxic compounds in human blood—and kept selling them.

Excerpt:

“What Hansen didn’t know was that 3M had already conducted animal studies—two decades earlier. They had shown PFOS to be toxic, yet the results remained secret, even to many at the company. In one early experiment, conducted in the late seventies, a group of 3M scientists fed PFOS to rats on a daily basis. Starting at the second-lowest dose that the scientists tested, about ten milligrams for every kilogram of body weight, the rats showed signs of possible harm to their livers, and half of them died. At higher doses, every rat died. Soon afterward, 3M scientists found that a relatively low daily dose, 4.5 milligrams for every kilogram of body weight, could kill a monkey within weeks. (Based on this result, the chemical would currently fall into the highest of five toxicity levels recognized by the United Nations.) This daily dose of PFOS was orders of magnitude greater than the amount that the average person would ingest, but it was still relatively low—roughly comparable to the dose of aspirin in a standard tablet.”

[torrentlaboratory23]

Defending Your Environment! Torrent Laboratory's Expertise in PFAS, PFOS, and PFOA Testing.

Protecting yourself and your surroundings from PFAS, PFOS, and PFOA contamination starts with accurate testing. Join us in this post as we highlight Torrent Laboratory's specialized services, equipped to detect and analyze these harmful substances. Through rigorous testing and analysis, we aim to raise awareness about the risks associated with these chemical contaminants and promote sustainable solutions for a cleaner, healthier future. Learn about the potential sources of contamination, associated health risks, and how our expertise can assist you in ensuring a safer environment for all.