Home AIRMAP Sites Thompson Farm Thompson Farm 2 Mount Washington Appledore Island Pack Monadnock Whately Location Map Archived Data View Archived Plots Aerosol Data Durham NH Met Data Current NHDES Ozone Data Current MaineDEP Ozone Data CAMNET Sites New England Weather Air Quality Standards Actions Health Effects Site Map Contact Us Current Data The UNH Observing Station at Thompson Farm is located in Durham, NH approximately two miles south of University of New Hampshire (43.11N, 70.95W, elevation 75ft). The site is characterized by rolling fields surrounded by mixed forest. Most of the air quality measurements are performed on air sampled from the top of a forty foot tower. One of NOAA's Climate Reference Network meteorological stations is also located at Thompson Farm.   UNH Observing Station at Thompson Farm UNH Observing Station at Thompson Farm Real-Time Air Quality Data   November 26th, March 25th, November 21st Air Pollutant Current Data (15 min. avg.) Last Update ET View Graph Carbon Monoxide - CO (ppbv) 188  07:30 PM Ozone - O3 (ppbv) 29  07:30 PM Carbon Dioxide - CO2 (ppmv) N/A Nitrogen Oxide - NO (ppbv) 0  07:30 PM Total Reactive Nitrogen - NOy (ppbv) 4.2  07:30 PM Color coding applies to 15 minute averages. Learn more about EPA health guidelines. 1 Day 2 Day 7 Day 30 Day Air Quality Chart Comparison UNH Observing Station at Thompson Farm Meteorological Data   November 21st   Current Data (15 min. avg.) Last Update ET View Graph Temperature (F) 46  07:30 PM Wind Speed (MPH) 3  07:30 PM Wind Direction (DEG) 80  07:30 PM Atmos Pres (in Hg) 29.84  07:30 PM 1 Day 2 Day 7 Day 30 Day