| ID Code | RA-166 |
|---|---|
| Photographer | Shigeo Hayashi |
| Provider | Hiroshima Peace Memorial Museum |
| Location | Koi, Kusatsu areas |
| Distance from the Hypocenter (m) | 3500 |
| Description | Radioactive substances on a roof Location: Koi-machi (now, Koi-ue) Distance from hypocenter: approx. 3,700m Team members climbed on a roof in Koi-machi to collect soil and mud for samples to measure residual radiation. They looked for gutters, cracks between roof tiles, or anywhere they might find a puddle of water. |