• Chandigarh now has its first pollen calendar, which can identify potential allergy triggers and provide a clear understanding for clinicians as well as allergy sufferers about their causes to help limit their exposure during high pollen loads.
• About 20-30% of the population suffers from allergic rhinitis/hay fever in India, and approximately 15% develop asthma.
• Pollens are considered major outdoor airborne allergens responsible for allergic rhinitis, asthma, and atopic dermatitis in humans.
• Pollen calendars represent the time dynamics of airborne pollen taxa in graphical form in a particular geographical area. They yield readily accessible visual details about various airborne pollen taxa present throughout the year, with their seasonality in a single picture.
• Pollen calendars are location-specific, with concentrations closely related to locally distributed flora.
• Department of Community Medicine and School of Public Health, PGIMER, Chandigarh, examined the seasonal periodicities of airborne pollen spectrum and developed the first Pollen Calendar for Chandigarh city.
Mains Paper 3: Economy
Prelims level: pollen calendar
Mains level: Read the newsfeed