Discover and read the best of Twitter Threads about #pfoa
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New Health Advisories for 4 #PFAS announced today and they are VERY low
#PFOA: 4 parts per *quadrillion*
#PFOS: 20 parts per *quadrillion*
#GenX: 10 ppt
#PFBS: 2000 ppt
This is a huge deal
#ForeverChemicals | @ewg | ewg.org/news-insights/…
#PFOA: 4 parts per *quadrillion*
#PFOS: 20 parts per *quadrillion*
#GenX: 10 ppt
#PFBS: 2000 ppt
This is a huge deal
#ForeverChemicals | @ewg | ewg.org/news-insights/…
That means #PFAS are toxic in minuscule amounts. Ppq is a tiny, tiny unit of measurement. WA state explained in 2018, "Lay a penny on the ground and compare it — by area — to the entire state of Washington. That is equal to one part per quadrillion." ecology.wa.gov/Blog/Posts/Mar…
Wikipedia describes it another way:
One part per quadrillion (ppq) denotes one part per 1,000,000,000,000,000 (1015) parts, and a value of 10−15. This is equivalent to about two and a half minutes out of the age of the Earth (4.5 billion years) en.wikipedia.org/wiki/Parts-per…
One part per quadrillion (ppq) denotes one part per 1,000,000,000,000,000 (1015) parts, and a value of 10−15. This is equivalent to about two and a half minutes out of the age of the Earth (4.5 billion years) en.wikipedia.org/wiki/Parts-per…
This is the #DemPartyPlatform for 2020. This part is called: COMBATING THE CLIMATE CRISIS AND PURSUING ENVIRONMENTAL JUSTICE (Part 5)
Only one party recognizes the urgent existential crisis facing our planet. Only one party believes in science and solutions. 1/21
Only one party recognizes the urgent existential crisis facing our planet. Only one party believes in science and solutions. 1/21
#Democrats will create an environmental justice fund to make historic investments aimed at eliminating legacy pollution, which disproportionately causes illness and premature death in communities of color, low-income communities, and Indigenous communities.2/21 #DemPartyPlatform
#Democrats will protect children’s health by replacing lead service lines and remediating lead paint in homes and schools; remediate Superfund and other contaminated sites; and ensure housing and schools have adequate plumbing and safe wastewater disposal systems.3/21 #Climate
THREAD: EPA's Nationwide PFAS Action Plan announcement: I'll be live-tweeting this announcement, and based on review of what has been released by @epa, this has all the makings of being a hot mess, something that many of us have feared...and expected. #pfas #pfos #pfoa
Reviewing the early announcements, there will be no MCL's set today, just "starting the process." This is the EXACT SAME LANGUAGE that was used to my face from one of the higher-ups in @EPA when I met with former Administrator Pruitt in May of 2018. Waste of the last 9 months.
At the 2018 PFAS National Leadership Summit in May, @EPA staff stated that the MCL process would take year to complete, possibly as long as a decade.
For those studying, tracking #PFAS pollution, what @j_g_allen has called the #foreverchemicals -- I wanted to offer some key resources about the relationship btwn the atom bomb and their early research & development w/ the Manhattan Project. An #envhist thread.
#PFOA #Teflon
#PFOA #Teflon
2. In 1947, the Manhattan District wrote up the history of their fluorocarbon work in support of the K-25 gaseous diffusion plant at Oak Ridge: see Vol I Book VII, since declassified and w/ the US DoE. Appendix G explains the fluorocarbon and Teflon work:
osti.gov/includes/openn…
osti.gov/includes/openn…
