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Keyword: air pollution

Can we protect high-elevation wilderness vegetation from air pollution impacts?

Publications Posted on: May 29, 2015
Our wilderness and alpine ecosystem areas are a unique resource. While these areas are in remote locations they are not isolated from long-range atmospheric transport. The increase in regional air pollution sources may expose them to anthropogenic pollutants.

Ozone in mountain ecosystems

Documents and Media Posted on: January 23, 2015
Ozone (O3) in the lower atmosphere is highly reactive and can damage the tissues found in the leaves of plants. However, little is known about ambient O3 concentrations at remote, non-urban mountainous areas of the western U.S. Key Points:Document Type: Briefing Papers

Respiratory disease and particulate air pollution in Santiago Chile: Contribution of erosion particles from fine sediments

Publications Posted on: September 30, 2014
Air pollution in Santiago is a serious problem every winter, causing thousands of cases of breathing problems within the population. With more than 6 million people and almost two million vehicles, this large city receives rainfall only during winters. Depending on the frequency of storms, statistics show that every time it rains, air quality improves for a couple of days, followed by extreme levels of air pollution.

Emissions tradeoffs associated with cofiring forest biomass with coal: A case study in Colorado, USA

Publications Posted on: September 04, 2013
Cofiring forest biomass residues with coal to generate electricity is often cited for its potential to offset fossil fuels and reduce greenhouse gas emissions, but the extent to which cofiring achieves these objectives is highly dependent on case specific variables.

Valuing mortality impacts of smoke exposure from major southern California wildfires

Publications Posted on: March 21, 2012
While the mortality impacts of urban air pollution have been well addressed in the literature, very little is known about the mortality impacts and associated social cost from wildfire-smoke exposure (Kochi et al., 2010; U.S. Environmental Protection Agency, 2004). In an attempt to address this knowledge gap, we estimate the social cost associated with excess mortality due to smoke exposure during the 2003 southern California wildfires.

Lichens, ozone, and forest health - exploring cross-indicator analyses with FIA data

Publications Posted on: July 20, 2009
Does air pollution risk represented by a lichen bioindicator of air pollution, an ozone bioindicator, or a combination of both, correlate with forest health as reflected by condition of tree crowns and other variables? We conducted pilot analyses to answer this question using Forest Inventory and Analysis (FIA) data from the Sierra Nevada region of California and the New England region; they have very different environments.

International co-operative program on assessment and monitoring of air pollution effects on forests: The Sierra Ancha Experimental Forest, Arizona

Publications Posted on: September 26, 2008
At the end of the 2007 Fiscal Year, the Experimental Forests and Ranges (EFR) Synthesis Network Committee awarded funds to 18 sites to establish a strategic ICP Level II (described below) synthesis network in the United States. Eleven Experimental Forest were selected to be included in the network, as well as seven Long Term Ecological Research (LTER) sites.

Air quality management in U.S. Fish and Wildlife Service wilderness areas

Publications Posted on: February 27, 2006
Proper management of air resources is vital to maintaining the wilderness character of an area. Air pollution can affect natural resources and has caused injury to vegetation, bioaccumulation of mercury in fish, eutrophication of coastal ecosystems and visibility impairment in U.S. Fish and Wildlife Service (FWS) wilderness areas. Sources of air pollution include power plants, incinerators, industry, automobiles, dust and fires.

Protecting wilderness air quality in the United States

Publications Posted on: February 24, 2006
Federal land managers are responsible for protecting air quality-related values (AQRVs) in parks and wilderness areas from air pollution damage or impairment. Few, if any, class 1 areas are unaffected by regional and global pollutants, such as visibility-reducing particles, ozone and deposition of sulfur (S), nitrogen (N) and toxics.