noun
pollen report; pollen information
Refers to forecasts, counts, or updates about airborne pollen levels, commonly used during hay fever season.
明日の花粉情報によると、スギ花粉が非常に多いそうです。
According to tomorrow's pollen report, cedar pollen levels will be very high.
花粉症 is hay fever (the allergy), while 花粉情報 is the information or forecast about pollen levels.
Compound of 花粉 (pollen) and 情報 (information).