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Pine Tree Pollen

Pollen is generally released by pine trees in the spring or early summer. The substance has the appearance of a fine yellow or green dust, and when it covers large areas, it is sometimes mistaken for a chemical spill. However, though pollen may cause allergic reactions in humans, it is for the most part harmless, and even beneficial to some species. In fact, pine pollen acts as a source of food for a variety of fungi and microscopic animals.

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