The following are links to various places that measure the radioactivity in Japan. Most sites link to Japanese pages, but using Google Translate, you can get a good idea of what the pages are about.
3/21/2011 UPDATE: Ministry of Education, Culture, Sports, Science and Technology-Japan (that’s a mouthful) has published environmental radioactivity levels by prefecture (updated twice a day): HERE.
- Wind Patterns in Fukushima Area (Japan Meteorological Agency)
- Unofficial Geiger counter readings for TOKYO by a radiation researcher in Hino, Tokyo - FAQs in English
- UStream LIVE stream of Geiger counter reading (unofficial) in Minato-ku, Minami Aoyama, Tokyo
- UStream LIVE stream of Geiger counter reading (unofficial) in Ota-ku, Tokyo
- UStream LIVE stream of Geiger counter reading (unofficial) in Koto-ku, Tokyo
- Kanagawa Prefecture Environmental Radiation Monitoring System
- Shizuoka Prefectural Environmental Radiation Monitoring Center
- Ibaraki Prefecture Radiation Monitoring System
- Gunma Prefectural Monitoring System
- Niigata Prefectural Radiation Monitoring System
- Sapporo, Hokkaido Geiger Counter readings, see also the Hokkaido Prefectural Monitoring Pages
- Overview of Japan radiation monitoring
- Japan – Ministry of Education, Division of Nuclear Safety & Nuclear Disaster Network Environment – Real-time radiation information
- Various nuclear monitoring posts in Japan
- Conversion information and context – 1 Gy/h = 0.8Sv/h
Other Resources:
imdb.com