Effects on Ecosystem
ＱAre some species of wild mushrooms more prone to absorb cesium than others?
ＡAn analysis was performed on measurement data obtained from 3,189 samples of 107 mushroom species taken in 265 municipalities in 14 prefectures during the period from 2011 to 2017. The results show that wild mushrooms’ ability to absorb cesium varies by species.
Studies have revealed that cesium concentrations tend to be lower in saprophytic mushrooms (e.g., Lyophyllum decastes), which decompose fallen leaves and dead trees to take in nutrients, than mycorrhizal mushrooms (e.g., Sarcodon aspratus), which grow in symbiosis with tree roots.
- How have the radioactive Cs concentrations changed in wild animals in Fukushima prefecture?
- Are foods from Fukushima safe?
- How does the concentration of radioactive cesium in trees change with time? Is radioactive cesium gradually absorbed into trees from roots?
- How do air dose rates in forests change with time?
- Is there a continuous input of cesium contamination to rivers from forests?