The Infectious risk has shown little change over the last 12 weeks, with the most recent week close to the 12-week average..
Allergy risk activity has held steady over the past 12 weeks in Essex, New Jersey.
Pollution risk activity has been trending downward over the past 12 weeks in Essex, New Jersey.
Weather risk activity has been trending upward over the past 12 weeks in Essex, New Jersey.
Last updated: August 31, 2026
Data refreshed weekly