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Brittany Trang Profile picture
@brittanytrang
May 2 • 4 tweets • 3 min read Twitter logo Read on Twitter
Many takeout containers have #PFAS. Until recently, using polymeric PFAS to reinforce these paper-based items was considered safe.

But a recent study suggests otherwise: these can also break down into toxic PFAS that could get into food

Me for @statnews:
statnews.com/2023/05/02/pfa…
For more info on which restaurants' packaging has #PFAS in it (as of last year), check out @kevloria's @ConsumerReports investigation:
consumerreports.org/health/food-co…
And for (what I consider) the original #PFAS in Chipotle/Sweetgreen bowls story, check out
@joefassler's 2019 story at The Counter / The New Food Economy (RIP The Counter)

thecounter.org/pfas-takeout-s…
And if you have no idea what I'm talking about, here's a video explainer on PFAS, or "forever chemicals":

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More from @brittanytrang

Brittany Trang Profile picture
May 1
Every quote in the story (and even the ones that didn't make it) were gold. Eg:

"We all like to listen to podcasts, so why not lay in an MRI scanner, listening to podcasts?" —Alex Huth, who designed an experiment that involves over 16 hours of listening to podcasts
"You get like a nice comfy blanket and it's pretty meditative, I have to say. It's like you're in this box by yourself, but it's calming. It's nice." — study participant, on lying really still in the MRI scanner for hours
"The Moth stories have been great. I’ve cried after listening to them. I've laughed really hard," which made [me] move, said a study participant. "It’s a double-edged sword."
Read 4 tweets
Brittany Trang Profile picture
Jan 26
Even if it's passed the USMLE, #ChatGPT is not an MD.

LLMs aren't constrained to truth, and ChatGPT's biggest hurdle for #healthcare applications is "AI hallucination" (that is, confidently making stuff up.)

New @statnews:

statnews.com/2023/01/26/cha…
Last week Meta's chief #AI scientist called #ChatGPT "nothing revolutionary, although that's the way it's perceived in the public."

Brief explainer of how ChatGPT works in my piece above, with better ones from @OpenAI's site.

The TL;DR is that human feedback is the "special sauce" that puts ChatGPT apart from its predecessors, but it

1) introduces a lot of places for humans to bias the algorithms

2) can depend on absolutely terrible human labor conditions
time.com/6247678/openai…
Read 8 tweets
Brittany Trang Profile picture
Oct 3, 2022
As I'm fresh from academia, I had a lot of questions when I saw the OSTP's public access mandate.

What is actually going to happen to research publishing? (...ie, will the industry collapse?)

Of course, it's not that simple. My @statnews story: (1/7) statnews.com/2022/10/03/whi…
Right now, federally funded research from large US agencies has to be publicly available 12 months after it's published.

This policy, which went into effect in 2016, has let millions of taxpayers read the work they're funding. (2/7)
However, I had no idea that some of my own papers are freely available online because when I try to access them on the journal site, I still get hit with a paywall. (3/7)
Read 7 tweets
Brittany Trang Profile picture
Aug 18, 2022
Today our paper about #PFAS destruction (at much milder conditions than previously thought possible) is out in @ScienceMagazine.

We also present a detailed, evidence-based degradation mechanism.

This paper is my entire PhD and I'm very proud of it. A 🧵:
science.org/doi/10.1126/sc…
PFAS are environmental pollutants linked to negative health effects at exposure levels so low that the US EPA recently set a drinking water health advisory limit that is lower than we can measure

(a nice way of saying there's no safe level)

In the last few years, the field has gotten pretty good at removing PFAS from water.

Our group in particular has made several regenerable PFAS adsorbents. But every time we present this research, someone asks 🙋‍♂️ "What do you do with the PFAS after you've desorbed it?"
Read 20 tweets

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