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Beijing Fights Back Against Spring's Golden Haze
18 Mar
Summary
- Beijing deploys water spraying, pruning, and pollen-fixing agents.
- Cypress pollen season began around March 8 and peaked mid-March.
- Mitigation efforts have reduced allergy severity for residents.

Beijing has initiated a robust campaign to mitigate airborne pollen this spring, particularly as cypress pollen entered its peak dispersal in mid-March. Authorities are employing a multi-pronged strategy including water spraying, pruning of male cypress branches, and the application of pollen-fixing agents. These operations are conducted 24/7 in critical areas such as residential zones, schools, and hospitals to minimize exposure.
The city's cypress pollen season commenced around March 8, with experts predicting a mid-March peak. Preventive actions were advanced at the district level, with male cypress branches pruned during the autumn and winter of 2025 to reduce pollen-producing cones. Major parks are intensifying water-spraying to suppress pollen at its source, with increased interventions in densely populated areas to lower airborne concentrations.
Residents like a 27-year-old woman, who suffered severe allergies last spring, are experiencing less intense symptoms this year due to these effective mitigation measures. The city has introduced eco-friendly biological agents and issued technical guidelines to support targeted, science-based interventions. While balancing allergy control with ecological value, Beijing continues its urban greening efforts, using hardy cypress species widely.
Medical experts advise personal protective measures during peak pollen periods, recommending reduced outdoor activity between 10 am and 5 pm. They also suggest wearing masks and eyewear outdoors, keeping windows closed, and using air purifiers indoors. Prompt medical attention is advised for persistent allergy symptoms.




