Black rain results from residual radioactive dust and ash following a nuclear blast. It is a dark, oily, highly dangerous form of radioactive contamination. Black rain began falling in Hiroshima 20 to 30 minutes after the explosion. It stained skin, clothing, and buildings. Those who ingested or came into contact with it suffered from hair loss, severe bleeding from gums, and acute leukemia. Water was polluted, and every fish in the river died. People that had not been present for the bombing got radiation poisoning after drinking well water or consuming contaminated food from the area. More than 70 years later, some survivors are still battling illness.

Hiroshima, Black rain, 8:46 a.m. 08/06/1945 - 84" x 84" Electrical tape on paper