Pollen Monitoring

Pollen Report

The NC Division of Air Quality (DAQ) operates a pollen sampler at in Raleigh. As pollen samples are collected, we report the data publicly and indicate how severe the observed pollen level  was. 

Most Recent Pollen Report

Note: DAQ does not forecast future pollen levels in North Carolina. 

Click the subscribe link in the Additional Pollen Information section below if you would like to have the daily pollen report automatically emailed to you.

Understanding the Pollen Report

A screenshot of the pollen report with different areas labeled A through E.
  1. Pollen Type: Individual pollen grains can be divided into three different types: grasses, trees, and weeds.
  2. Number of Grains: This number represents the pollen grains counted on the pollen rod for each pollen type.
  3. Severity: DAQ classifies pollen counts as "low", "moderate", "high" or "very high".
  4. Pollen Count: The number of grains of pollen in a cubic meter of air.
  5. Total Pollen Count: The sum of the individual pollen counts for grasses, trees, and weeds.Pollen Monitor 

Pollen Trends

DAQ has collected pollen sample data going back to 1999. This data is available through our Pollen Trends Report. This tool allows the public to view historical measured pollen levels for trees, grasses and weeds in the last 30, 60 or 90 days, or for a custom date range as far back as data exists. 

Pollen Trends Report

Staff collects pollen from the DAQ monitor.

Pollen Monitor

DAQ operates a pollen sampler at the Laboratory Analysis Branch headquarters on Reedy Creek Road in Raleigh. It is the only pollen sampler in the state currently operated by DAQ.

Address: 4403 Reedy Creek Road, Raleigh, NC 27607
Latitude: 35.813311 
Longitude: -78.714373

Sampling Method & Frequency

The DAQ pollen sampler is operated annually from late-February through mid-November. The exact season start and end dates fluctuate yearly. 

DAQ staff analyze a pollen sample under a microscope.

Samples are collected Monday through Friday, except on state holidays, and represent the pollen count for the previous 24 hours. Each sample is collected for 24 hours, from 9 a.m. to 9 a.m. of the following day. The sampler collects pollen for 1 minute of every 10 minutes.

DAQ laboratory technicians analyze the collected pollen under a microscope and publish a daily report detailing the number of pollen grains counted.

The detailed pollen counting procedure with pictures can be found here (PDF).

Additional Pollen Information


For sampling questions 
Steven Walters 

For public/media inquiries 
Shawn Taylor 

Non-DAQ Pollen Data

Other pollen data collected by other organizations throughout North Carolina may be found at: