Cedar pollen was observed in Tokyo on Jan. 8, marking the earliest detection since the Tokyo Metropolitan Government began recording pollen counts in 1985. This year’s observation is a full month earlier than last year’s first sighting, officials announced Friday.
Causes of the Early Pollen Season
Experts attribute the unusually early appearance of cedar pollen to climate change and urbanization, which have disrupted natural cycles and contributed to heightened pollen activity.
Health Concerns and Recommendations
With pollen levels expected to rise sharply in the coming weeks, Tokyo government officials are urging residents to prepare for hay fever season:
• Preventive measures: Wearing masks and glasses to minimize exposure.
• Medical care: Seeking early treatment for allergy symptoms.
Rising Pollen Trends
The early onset highlights broader environmental concerns:
• Urban heat islands: Cities like Tokyo experience higher temperatures due to dense infrastructure, accelerating natural processes like pollen release.
• Climate effects: Warmer winters and shifting seasons amplify cedar tree activity.
Residents are advised to stay informed on pollen forecasts as Tokyo braces for a challenging allergy season ahead.
Source: https://www.japantimes.co.jp/news/2025/01/20/japan/science-health/cedar-pollen-season/
