Yes, rain can control pollen, particularly light, steady showers.
Here's a breakdown of how rain impacts pollen levels:
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Washing Pollen Away: Light, consistent rain effectively washes pollen out of the air. The raindrops physically capture and carry the pollen grains to the ground.
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Humidity's Role: Following rainfall, increased humidity levels also help to keep pollen counts down. Higher humidity makes the pollen heavier, reducing its ability to become airborne and travel long distances.
Therefore, rain offers a temporary reprieve from high pollen counts by removing existing pollen and hindering its dispersal. However, this effect is often temporary, and pollen levels can rebound once the rain stops and humidity decreases.
