PFAS Chemicals Contaminate U.S. Food Supply, FDA Confirms
The U.S. Food and Drug Administration (FDA) has found per- and polyfluoroalykyl substances, or PFAS, in foods including grocery store meat, fish and chocolate cake, The Associated Press reported Monday.
The FDA tests found PFAS in chocolate cake at levels more than 250 times the only federal safety guidelines that exist, for some types of PFAS in drinking water, according to The Associated Press.
Wait! Before you bite into that chocolate cake, there's something that the @US_FDA hasn't told you, and you definit… https://t.co/S270W4Xl52— EWG (@EWG)1559576162.0
"What this calls for is additional research to determine how widespread this contamination is and how high the levels are," Director of the National Institute of Environmental Health Sciences Linda Birnbaum told The Associated Press. "We have to look at total human exposure — not just what's in the water or what's in the food ... or not just dust. We need to look at the sum totals of what the exposures are."
CNN explained why PFAS contamination is so concerning:
PFAS is a family of nearly 5,000 synthetic chemicals that are extremely persistent in the environment and in our bodies. PFAS is short for perfluoroalky and polyfluoroalkyl substances and includes chemicals known as PFOS, PFOA and GenX, sometimes called forever chemicals. These chemicals all share signature elemental bonds of fluorine and carbon, which are extremely strong and difficult to break down in the environment or in our bodies.
These chemicals can easily migrate into the air, dust, food, soil and water and can accumulate in the body. They've been linked to adverse health impacts including liver damage, thyroid disease, decreased fertility, high cholesterol, obesity, hormone suppression and cancer.
They were invented by DuPont in 1938, initially for non-stick cookware. But they are now used by a variety of industries to repel grease and water in items from packaging to carpets to outdoor gear, and they are also an important ingredient in firefighting foam, which is often used by the Defense Department to fight jet fires, The Associated Press reported.
The U.S. Environmental Protection Agency gives the safe level for certain PFAS in drinking water at 70 parts per trillion (ppt).
The FDA's most recent PFAS findings were presented at the 29th annual European meeting of the Society of Environmental Toxicology and Chemistry in Helsinki, Finland last month, and photos of the presentation were obtained by EDF, according to CNN. The findings contained three related investigations into PFAS in food, as EDF summarized:
1. The FDA found most of 16 PFAS tested for in food sold at a farmer's market downstream of a PFAS facility. One produce sample contained 1,200 ppt.
2. In an investigation of a dairy farm near an air force base in New Mexico, the agency found the PFAS perfluoroctanesulfonate (PFOS) at levels of more than 5,000 ppt in milk samples. It also found lower levels of various types of PFAS in cheese.
3. A sampling of food from grocery stores in three mid-Atlantic cities in October 2017 turned up 17,640 ppt of PFAS in chocolate cake, and detectable levels of PFOS in 10 of 21 meat samples, from 134 ppt in a frankfurter to 865 ppt in tilapia.
FDA spokeswoman Tara Rabin told The Associated Press that the levels found by the agency were "not likely to be a human health concern."
However, East Carolina University toxicologist Jamie DeWitt said the important question was the impact of contamination over time.
"Drinking one glass of contaminated water is unlikely to be associated with health risks, as is eating one slice of contaminated chocolate cake," DeWitt told The Associated Press. "Individually, each item is unlikely to be a huge problem, but collectively and over a lifetime, that may be a different story."
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By Hui Hu
Winter is supposed to be the best season for wind power – the winds are stronger, and since air density increases as the temperature drops, more force is pushing on the blades. But winter also comes with a problem: freezing weather.
Comparing rime ice and glaze ice shows how each changes the texture of the blade. Gao, Liu and Hu, 2021, CC BY-ND
Ice buildup changes air flow around the turbine blade, which can slow it down. The top photos show ice forming after 10 minutes at different temperatures in the Wind Research Tunnel. The lower measurements show airflow separation as ice accumulates. Icing Research Tunnel of Iowa State University, CC BY-ND
EcoWatch Daily Newsletter
While traditional investment in the ocean technology sector has been tentative, growth in Israeli maritime innovations has been exponential in the last few years, and environmental concern has come to the forefront.
theDOCK aims to innovate the Israeli maritime sector. Pexels<p>The UN hopes that new investments in ocean science and technology will help turn the tide for the oceans. As such, this year kicked off the <a href="https://www.oceandecade.org/" target="_blank" rel="noopener noreferrer">United Nations Decade of Ocean Science for Sustainable Development (2021-2030)</a> to galvanize massive support for the blue economy.</p><p>According to the World Bank, the blue economy is the "sustainable use of ocean resources for economic growth, improved livelihoods, and jobs while preserving the health of ocean ecosystem," <a href="https://www.sciencedirect.com/science/article/pii/S0160412019338255#b0245" target="_blank" rel="noopener noreferrer">Science Direct</a> reported. It represents this new sector for investments and innovations that work in tandem with the oceans rather than in exploitation of them.</p><p>As recently as Aug. 2020, <a href="https://www.reutersevents.com/sustainability/esg-investors-slow-make-waves-25tn-ocean-economy" target="_blank" rel="noopener noreferrer">Reuters</a> noted that ESG Investors, those looking to invest in opportunities that have a positive impact in environmental, social and governance (ESG) issues, have been interested in "blue finance" but slow to invest.</p><p>"It is a hugely under-invested economic opportunity that is crucial to the way we have to address living on one planet," Simon Dent, director of blue investments at Mirova Natural Capital, told Reuters.</p><p>Even with slow investment, the blue economy is still expected to expand at twice the rate of the mainstream economy by 2030, Reuters reported. It already contributes $2.5tn a year in economic output, the report noted.</p><p>Current, upward <a href="https://www.ecowatch.com/-innovation-blue-economy-2646147405.html" target="_self">shifts in blue economy investments are being driven by innovation</a>, a trend the UN hopes will continue globally for the benefit of all oceans and people.</p><p>In Israel, this push has successfully translated into investment in and innovation of global ports, shipping, logistics and offshore sectors. The "Startup Nation," as Israel is often called, has seen its maritime tech ecosystem grow "significantly" in recent years and expects that growth to "accelerate dramatically," <a href="https://itrade.gov.il/belgium-english/how-israel-is-becoming-a-port-of-call-for-maritime-innovation/" target="_blank" rel="noopener noreferrer">iTrade</a> reported.</p><p>Driving this wave of momentum has been rising Israeli venture capital hub <a href="https://www.thedockinnovation.com/" target="_blank" rel="noopener noreferrer">theDOCK</a>. Founded by Israeli Navy veterans in 2017, theDOCK works with early-stage companies in the maritime space to bring their solutions to market. The hub's pioneering efforts ignited Israel's maritime technology sector, and now, with their new fund, theDOCK is motivating these high-tech solutions to also address ESG criteria.</p><p>"While ESG has always been on theDOCK's agenda, this theme has become even more of a priority," Nir Gartzman, theDOCK's managing partner, told EcoWatch. "80 percent of the startups in our portfolio (for theDOCK's Navigator II fund) will have a primary or secondary contribution to environmental, social and governance (ESG) criteria."</p><p>In a company presentation, theDOCK called contribution to the ESG agenda a "hot discussion topic" for traditional players in the space and their boards, many of whom are looking to adopt new technologies with a positive impact on the planet. The focus is on reducing carbon emissions and protecting the environment, the presentation outlines. As such, theDOCK also explicitly screens candidate investments by ESG criteria as well.</p><p>Within the maritime space, environmental innovations could include measures like increased fuel and energy efficiency, better monitoring of potential pollution sources, improved waste and air emissions management and processing of marine debris/trash into reusable materials, theDOCK's presentation noted.</p>
theDOCK team includes (left to right) Michal Hendel-Sufa, Head of Alliances, Noa Schuman, CMO, Nir Gartzman, Co-Founder & Managing Partner, and Hannan Carmeli, Co-Founder & Managing Partner. Dudu Koren<p>theDOCK's own portfolio includes companies like Orca AI, which uses an intelligent collision avoidance system to reduce the probability of oil or fuel spills, AiDock, which eliminates the use of paper by automating the customs clearance process, and DockTech, which uses depth "crowdsourcing" data to map riverbeds in real-time and optimize cargo loading, thereby reducing trips and fuel usage while also avoiding groundings.</p><p>"Oceans are a big opportunity primarily because they are just that – big!" theDOCK's Chief Marketing Officer Noa Schuman summarized. "As such, the magnitude of their criticality to the global ecosystem, the magnitude of pollution risk and the steps needed to overcome those challenges – are all huge."</p><p>There is hope that this wave of interest and investment in environmentally-positive maritime technologies will accelerate the blue economy and ESG investing even further, in Israel and beyond.</p>
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By Jeff Turrentine
Tamara Lindeman certainly doesn't seem particularly anxious, or grief stricken, or angry. In fact, in a recent Zoom conversation, the Toronto-based singer-songwriter (who records and performs under the name The Weather Station) comes across as friendly, thoughtful, and a little shy.
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