A new sensor can detect 'forever chemicals' known as PFAS (perfluoroalkyl and polyfluoroalkyl substances) in drinking water. PFAS are found in many consumer products and are linked to cancer and other health problems.
The technology could offer a cheap, fast way to test for PFAS, which have been linked to cancer and other health problems.A new sensor can detect 'forever chemicals' known as PFAS in drinking water. PFAS are found in many consumer products and are linked to cancer and other health problems.
Using the new sensor technology, the researchers showed that they could detect PFAS levels as low as 200 parts per trillion in a water sample. The device they designed could offer a way for consumers to test their drinking water, and it could also be useful in industries that rely heavily on PFAS chemicals, including the manufacture of semiconductors and firefighting equipment.
In 2023, the Environmental Protection Agency created an"advisory health limit" for two of the most hazardous PFAS chemicals, known as perfluorooctanoic acid and perfluorooctyl sulfonate . These advisories call for a limit of 0.004 parts per trillion for PFOA and 0.02 parts per trillion for PFOS in drinking water.
The researchers deposited these polymers onto a strip of nitrocellulose paper and coated them with a surfactant that can pull fluorocarbons such as PFAS out of a drop of water placed on the strip. When this happens, protons from the PFAS are drawn into the polyaniline and turn it into a conductor, reducing the electrical resistance of the material.
Such a device could offer a less expensive, rapid alternative to current PFAS detection methods. If PFAS are detected in drinking water, there are commercially available filters that can be used on household drinking water to reduce those levels. The new testing approach could also be useful for factories that manufacture products with PFAS chemicals, so they could test whether the water used in their manufacturing process is safe to release into the environment.
Indonesia Berita Terbaru, Indonesia Berita utama
Similar News:Anda juga dapat membaca berita serupa dengan ini yang kami kumpulkan dari sumber berita lain.
Personal injury firms look for people exposed to PFAS from Joint Base Cape CodAttorneys estimate that more than 100 who’ve already joined the case were exposed to the so-called “forever chemicals” linked to cancer, thyroid diseases, fertility issues and more while working with firefighting foam on or around Joint Base Cape Cod.
Baca lebih lajut »
Lawsuit accuses Kleenex maker Kimberly-Clark of polluting town with PFAS chemicalsConnecticut residents living near a facility where Kleenex tissues are made allege that toxic 'forever chemicals' contaminated their properties and water.
Baca lebih lajut »
Salt Lake City: 'Low' PFAS traces detected in 2 wells, none in drinking water'Low concentrations' of chemicals tied to potential health risks were found in water samples collected from two groundwater wells late last year, but there's no impact to water supply, Salt Lake City Public Utilities officials say.
Baca lebih lajut »
PFAS 'forever chemicals' to officially be removed from food packaging, FDA saysEmily is a health news writer based in London, United Kingdom. She holds a bachelor's degree in biology from Durham University and a master's degree in clinical and therapeutic neuroscience from Oxford University. She has worked in science communication, medical writing and as a local news reporter while undertaking journalism training.
Baca lebih lajut »
Montco aviation museum’s expansion plans have been grounded for 13 years due to PFASThe Harold F. Pitcairn Wings of Freedom Aviation Museum has donors lined up to help fund an expansion. But when that can happen is unclear.
Baca lebih lajut »
PFAS in blood are ubiquitous -- and they are associated with an increased risk of cardiovascular diseasesResearchers provide evidence that traces of the widely used PFAS chemicals in human blood are associated with unfavorable lipid profiles and thus with an increased risk of cardiovascular diseases. The findings are based on data from more than 2,500 adults. PFAS were detectable in the blood of nearly all study participants.
Baca lebih lajut »