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zeynep's profile
zeynep tufekci
zeynep tufekci
zeynep tufekci
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@zeynep

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zeynep tufekciVerified account

@zeynep

Complex systems, wicked problems. Society, technology, science and more. @UNC professor. @NYTimes columnist. My newsletter is @insight: http://www.theinsight.org 

floating in a most peculiar way
theinsight.org
Joined August 2009

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    1. Dr. Saskia Popescu‏Verified account @SaskiaPopescu 9 Aug 2020

      Dr. Saskia Popescu Retweeted

      So funny, I remember just a few short months ago when a certain nutritional epi was haphazardly pushing UV systems and was extremely dismissive when I urged him to stop due to various concerns - from regulatory, to efficacy, etc. Alas, it's not like I do this for a living… 🙃 https://twitter.com/jljcolorado/status/1291761143908769795 …

      Dr. Saskia Popescu added,

      This Tweet is unavailable.
      10 replies 15 retweets 133 likes
    2. Dan Freedman, DO‏ @dfreedman7 9 Aug 2020
      Replying to @SaskiaPopescu

      Please tell me it wasn't that stupid intra-tracheal UV device.

      1 reply 0 retweets 6 likes
    3. Dr. Saskia Popescu‏Verified account @SaskiaPopescu 9 Aug 2020
      Replying to @dfreedman7

      Thankfully no, but in the subway HVAC systems

      1 reply 0 retweets 10 likes
    4. Prof. Jose-Luis Jimenez‏Verified account @jljcolorado 9 Aug 2020
      Replying to @SaskiaPopescu @dfreedman7

      To be clear, UVC is effective against pathogens, it was part of how Riley showed that tuberculosis transmitted through aerosols. But, use ONLY if you can't solve the problem with filtering.

      1 reply 0 retweets 1 like
    5. Dr. Angela Rasmussen‏Verified account @angie_rasmussen 9 Aug 2020
      Replying to @jljcolorado @SaskiaPopescu @dfreedman7

      Yes but UV systems are costly and lose germicidal efficacy over time, requiring lots of preventative maintenance. As Dr. Popescu points out they aren’t well-regulated either in terms of safety or efficacy.

      3 replies 0 retweets 13 likes
      zeynep tufekci‏Verified account @zeynep 9 Aug 2020
      Replying to @angie_rasmussen @jljcolorado and

      There is a reason I didn't mention UV systems in my public-facing article! The risks are real and there are too many UV lights available (for veterinarian purposes for example) that might get repurposed. It's definitely if-you-have-to-ask-leave-it-to-experts mitigation.

      11:19 AM - 9 Aug 2020
      • 14 Likes
      • visfor #StillHere ivysorta Laura Ehrig 🌎💙 Dickson John Gordon MD Dr. Saskia Popescu Prof. Jose-Luis Jimenez Sara Lubic is @🏡
      3 replies 0 retweets 14 likes
        1. zeynep tufekci‏Verified account @zeynep 9 Aug 2020
          Replying to @zeynep @angie_rasmussen and

          It's definitely a case where we need the authorities to step up with guidelines for what filter/dilute means and what to do. They apparently have guidelines for specific types of places in Japan (one for restaurant; one for gym). I may try to get those translated as examples.

          0 replies 0 retweets 7 likes
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        2. Mehmet Dikici‏ @mehmetdikici 9 Aug 2020
          Replying to @zeynep @angie_rasmussen and

          Unfortunately, it is not possible to install HEPA filters in the air handling units of existing buildings, as it causes high pressure loss. For this reason, UV-C application to existing air handling units is an easier solution.

          1 reply 0 retweets 0 likes
        3. Dr. Angela Rasmussen‏Verified account @angie_rasmussen 9 Aug 2020
          Replying to @mehmetdikici @zeynep and

          No, it’s not. Getting portable air filters is an easier solution than UV systems that are poorly regulated, expensive, and unproven to work in these settings. Even portable filter units are out of reach for many schools so how can they install central UV disinfection?

          1 reply 0 retweets 4 likes
        4. Show replies
        1. Alfie‏ @WndlB 9 Aug 2020
          Replying to @zeynep

          Like @POTUS! That’s why I swallowed mine! Delicious and nutritious!

          0 replies 0 retweets 0 likes
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