pollen
Refers to the fine powder produced by flowers and other seed plants; very common in compounds and phrases such as 花粉症 and 花粉が飛ぶ.
A lot of pollen is in the air when spring comes.
There was a lot of pollen today, so I went out wearing a mask.
A lot of cedar pollen is in the air today.
If you go outside, you end up inhaling pollen.
I hear the amount of pollen is high this year.
cedar pollen
pollen-free Japanese cedar