Grasses have started to pollinate in the past week or so, though those levels remain low so far, tending to rise through late May and peak in early- to mid- June.
Tree pollen levels are definitely on the decline and appear relatively low, not entirely absent however. Mold spores overall low as well.
If you find that your respiratory symptoms are more severe during times when pollen and mold counts are low, then consider other potential causes, including allergic and non-allergic causes. During cooler months, indoor allergens are often a problem, such as pet dander and dust mite (depending on local environment). Non-allergic causes of nasal and sinus symptoms in Western Colorado are also common, especially during the spring and fall. These are frequently related to dryness, dust, wind, and irritants such as from open burning.
As far as we know, this is the only active pollen counter in Western Colorado. We report what we see. Most other pollen reports online utilize computer modeling to estimate likely pollen trends. Such computer modeling has limitations and we find frequent discrepancies with our "real-life" measurements.
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