This research examined radioactive contamination in wild mushrooms from mountainous regions of China. The study found that mushrooms growing at higher elevations in colder climates accumulated more radioactive cesium compared to those from lower, warmer regions. However, the radiation levels were still considered safe for human consumption. Impacts on everyday life: – Demonstrates that wild mushrooms remain safe to eat in these regions despite some radioactive contamination – Shows how climate and elevation affect the distribution of radioactive materials in the environment – Helps inform food safety guidelines for wild mushroom consumption – Provides baseline data for monitoring environmental radiation levels – Contributes to understanding long-term effects of historical nuclear testing