The infectious disease risk has generally declined over the past 12 weeks, with a slight increase in recent weeks followed by a current week risk comparable to the lower levels observed mid-period..
Allergen risk remained low for the first half of the last 12 weeks but has increased notably in the latter weeks, with the current week maintaining a higher risk relative to earlier weeks..
Pollution risk has consistently remained at negligible levels throughout the past 12 weeks without any significant fluctuations..
Severe Weather risk showed a rising trend during the middle weeks before decreasing somewhat towards the current week, which still reflects a moderate risk compared to initial levels..
Last updated: May 24, 2026
Data refreshed weekly