Infectious disease risk showed a general decreasing trend over the past 12 weeks but has experienced a modest rebound in the current week..
Allergens risk has been consistently elevated over the past several weeks with a recent slight increase compared to the preceding period..
Pollution risk has remained at minimal levels throughout the entire 12-week period without noticeable fluctuations..
Severe Weather risk demonstrated some variability over the last 12 weeks with occasional increases and a recent moderate rise relative to recent weeks..
Last updated: May 24, 2026
Data refreshed weekly