Urban Greenery and Pollen: Why Symptoms Are Worse in the City
Pollen exposure in cities differs from the countryside. Particulate matter and the heat island effect can make symptoms more noticeable.
A few features of cities
Some tree species used in urban greenery produce large amounts of pollen and are strongly allergenic. Dense buildings reduce wind speed, so pollen and particulate matter stay near the ground for longer. Vehicle exhaust and particulate matter may worsen irritation of the respiratory mucosa, making people more sensitive to pollen. Together, these factors mean the same pollen count can cause more noticeable discomfort in the city.
Practical steps you can take
- Follow pollen monitoring information for your district, and avoid long periods near green belts and main roads during peak times
- Wear a mask while commuting, and add goggles when cycling
- When you get home, change your clothes, wash your face and do nasal saline irrigation. Air the bedroom briefly and clean with wet methods
- On days with heavier air pollution, reduce the intensity of outdoor exercise
What to keep in perspective
The health benefits of urban greenery are clear. For sensitive people, what matters more is sensible avoidance and proper management, rather than simply blaming one type of tree. If symptoms affect your life at the same time each year, it is a good idea to see a doctor for assessment, so they can make an overall plan that includes environmental control and appropriate medication.
This article is for general information only and is not medical advice. Please follow your doctor's instructions.
This article is for general information only and is not medical advice. If your symptoms affect daily life, please see a doctor.