Find Your Pollen Trigger Threshold

Log symptoms. Match them to pollen counts. See exactly which type and level sets you off.

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Daily Entry

Pollen Counts (grains/m³)

Leave blank if unknown. Use the preset calendar below to auto-fill typical values.

Preset Pollen Calendar

Auto-fill typical counts for your region and month.

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Recent Entries

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Your Symptom-Pollen Correlation

After 7+ entries, this chart shows which pollen types and counts match your worst days. The dotted line is your estimated trigger threshold.

Low severity (1-2) Moderate (3) High (4-5) Your threshold line

How to Get Useful Results

The goal is to find your personal trigger threshold: the pollen count where your symptoms jump from manageable to miserable. Here is how to get there.

  1. Log every day during pollen season. Even quick entries help. Consistency matters more than detail.
  2. Use the preset calendar if you do not have exact counts. It fills in typical values for your region and month. Real counts from a local station are better, but presets still reveal patterns.
  3. Be honest with your severity rating. A '3' on a day you pushed through is still a '3'. Do not downplay bad days.
  4. Wait for at least 7 entries before reading the chart. The threshold line gets more accurate with more data. Twenty entries is better than seven.
  5. Look for the cluster. Your threshold is where dots shift from green/yellow to orange/red as pollen counts rise.

Common Mistakes

  • Ignoring cross-reactive foods. If you react to birch pollen, you might also itch from apples, cherries, or carrots. This tracker does not cover food reactions, but it is worth mentioning to your doctor.
  • Only logging bad days. Good days are just as important. They show what 'below threshold' looks like for you.
  • Changing your rating scale mid-season. Try to use the same standard throughout. If a '3' meant 'had to leave work' in April, it should mean the same in June.
  • Forgetting weather factors. Wind spreads pollen. Rain washes it away. Add notes about weather so you can spot those patterns too.

What the Threshold Line Means

The dotted line on the chart is an estimate of where your symptoms tend to get severe. It is based on your own data, not a general medical guideline. Use it to plan: if tomorrow's forecast shows tree pollen above your threshold, start medication early or limit outdoor time.

Season-over-Season Comparison

Your data saves automatically in the browser. When next season starts, keep logging. The chart will show both seasons side by side so you can see if your tolerance is changing. Some people get more sensitive over time. Others build resistance. The only way to know is to track.