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Highlight IDTitleStrategic Program Area(s)YearStation
Photo of A Forest Service researcher takes moss samples in Portland, Ore., as part of a study to analyze the moss for evidence of airborne toxins. Moss serve as a living record of local air pollution. USDA Forest Service
ID: 789
An Innovative Study Uses Moss to Measure Air Toxin Levels at Schools in Portland, Oregon

Air pollution has been linked to major health problems including cancer, cardiovascular disease, and adverse birth outcomes. Children can be par ...

Principal Investigator : Sarah Jovan, Dr

Water, Air, and Soil2015PNW
Photo of Bone lichen (Hypogymnia spp.) is a common sight in Alaska's forests. Sarah Jovan, USDA Forest Service
ID: 662
Lichen Are Indicators of Climate Change in Southern Alaska's Forests

Lichens respond quickly to climate changes and potentially allow early detection of shifting conditions before other changes in vegetation are a ...

Principal Investigator : Sarah Jovan, Dr

Inventory and Monitoring2014PNW
Photo of Quercus kelloggii lichen grows in the San Bernardino National Forest that receives about 70 kilograms of nitrogen per hectare per year -- background levels are less than 1kg. Sarah Jovan, Forest Service
ID: 92
Lichen Communities Serve as Canary in the Coal Mine for Air Pollution

A comparison of lichen communities from 1976 to 2008 suggests continued deterioration of air quality in the Los Angeles Basin despite policy and ...

Principal Investigator : Sarah Jovan, Dr

Inventory and Monitoring2012PNW
Photo of Wolf lichen (Letharia spp.) is a species frequently used to estimate nitrogen deposition in western forests. Jason Hollinger, Wikimedia Commons
ID: 663
Lichen Indicate Air Quality Near Natural Gas Wells

Nitrogen in lichen tissues closely correlates with measured nitrogen deposition in forests near natural gas wells in the Bridger Wilderness, WY. ...

Principal Investigator : Sarah Jovan, Dr

Water, Air, and Soil
Inventory and Monitoring
Photo of The tundra of interior Alaska hosts an incredible diversity of moss and lichen species that sequester carbon and regulate the water table, among other ecosystem services. USDA Forest Service.
ID: 762
New Method Monitors Species Groups and Estimates Carbon Storage in Moss and Lichen Layers in Boreal and Temperate Forests

Mat forming ground layers of mosses and lichens are responsible for sequestering one-third of the world’s terrestrial carbon, regulating water ...

Principal Investigator : Sarah Jovan, Dr

Inventory and Monitoring2015PNW