• Ziggurat@sh.itjust.works
    link
    fedilink
    Français
    arrow-up
    3
    ·
    6 months ago

    Before or after the tsunami ? Did you used a dosimeter ? Not a geiger an actual dosimeter ? What are the dose rate in the area. How much did the nature came back in the aera ?

    • oce 🐆OP
      link
      fedilink
      Français
      arrow-up
      2
      ·
      edit-2
      6 months ago

      Before or after the tsunami ?

      It was this week.

      Did you used a dosimeter ? Not a geiger an actual dosimeter ?

      Yes, we were given dosimeters, I had one for the whole day in the former evacuation zone (20 km radius around the plant) and another for when we stayed in the plant. I actually took notes of the different radiation levels I could see on mine:

      • outside the zone: 0.15 μSv/h
      • on the road to the plant where the radioactive plume passed: 1.3 μSv/h
      • at the security check of the plant: 0.05 μSv/h
      • in front of the sea-side where they mix the treated contaminated water: 1.3 μSv/h
      • on the observatory spot about 60 m away from unit 1: 66 μSv/h

      In total, I took 16.3 μSv during the tour (plant + evacuation zone), which is in the range of a dental X-ray.

      They are also pretty transparent about it, there are dosimeters everywhere in the zone at train stations and other public places. See the red counter at a station in my pic below:

      How much did the nature came back in the aera ?

      The region is generally very pretty and natural (rice fields and woods), there’s no specific Chernobyl-style nature come back in the evacuation zone. I think it’s because the radioactive contamination was way lower, so they could clean up. They have been pressure washing everything and removing 5-10 cm of topsoil for years. Now most of the zone is reopened for people who want to come back. Some of it is still forbidden, you can see the yellow barriers with a crossed silhouette and bags of soil being removed in my pictures below.

      • Ziggurat@sh.itjust.works
        link
        fedilink
        Français
        arrow-up
        4
        ·
        6 months ago

        1.3 μSv/h

        So living full time here would be around 11.3 mSv/year ? Still within the range of a radiation worker, and still less than the background radiation in Kerala, Interesting

        • oce 🐆OP
          link
          fedilink
          Français
          arrow-up
          3
          ·
          edit-2
          6 months ago

          Less than that, 1.3 was a very specific place on the road to the plant where you probably cannot live. In the rest of the reopened zone it was more like 0.05–0.2. I am pretty convinced it’s safe, radiation-wise, to live in the reopened parts of the evacuation zone.