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 second UNH Observing Station at Thompson Farm is located in Durham, NH approximately two miles south of University of New Hampshire (43.1078N, 70.9517W, elevation 131ft). The site is characterized by mixed forest. Most of the air quality measurements are performed on air sampled from the top of a eighty foot tower.   UNH Observing Station at Thompson Farm 2 UNH Observing Station at Thompson Farm 2 Real-Time Air Quality Data   April 9th, October 24th, May 19th Air Pollutant Current Data (15 min. avg.) Last Update ET View Graph Carbon Monoxide - CO (ppbv) 161  09:00 AM Ozone - O3 (ppbv) N/A Sulfur Dioxide - SO2 (ppbv) N/A Carbon Dioxide - CO2 (ppmv) N/A Nitrogen Oxide - NO (ppbv) N/A 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 2 Meteorological Data   May 19th   Current Data (15 min. avg.) Last Update ET View Graph Temperature (F) N/A Wind Speed (MPH) 2  01:45 PM Wind Direction (DEG) 123  01:45 PM Atmos Pres (in Hg) N/A Relative Humidity (%) N/A 1 Day 2 Day 7 Day 30 Day