Take a closer look at New Hampshire state wide real-time air quality @ www.airquality.nh.gov
Also check the Forecasted Air Quality Levels in NH which includes a high elevation forecast for areas >3000' in the state in the table at the bottom of the page.
High Ozone on Mountain TopsNote that some locations show ozone levels at both a high and low elevation site. Are the concentrations the same today at these sites?
Learn why mountains have higher ozone levels than nearby adjacent valleys.
AMC’s research has shown that the higher summit of Mount Washington has consistently higher ozone level than Pinkham Notch. When we have a spell of bad air pollution in our region these differences are even more pronounced.
Learn more about ozone:
- What is ozone?
- Why is ozone higher on mountain tops?
- What are the impacts of ozone?
Real-time 
for current ozone levels.
