Refine search
Results 1-10 of 10
La normalisation en qualite de l' air: la situation en France.
1992
Mienville P.
Effects of air filtration on spring wheat grown in open-top field chambers at a rural site. I. Effect on growth, yield and dry matter partitioning.
1992
Temmerman L. de | Vandermeiren K. | Guns M.
Deperissement des forets et pollution atmospherique: ce que nous avons appris (Programme DEFORPA 1984-1991).
1992
Landmann G.
Les enquetes epidemiologiques des effets de la pollution atmospherique sur la sante: discussion a propos d' un cas.
1992
Kondakis X.G. | Fragoulia A. | Tselentis V.
Genetic structure of a naturally regenerating Scots pine population tolerant for high pollution near a zinc smelter.
1992
Prus Glowacki W. | Nowak Bzowy R.
Ozone, acidic precipitation, and soil Mg impacts on soil and loblolly pine seedling nutrient status after three growing seasons.
1992
Edwards G.S. | Kelly J.M. | Mays P.A.
Air pollution effects on biodiversity
1992
Barker, Jerry R. | Tingey, David T.
The Economic impact of air pollution on timber markets | Studies from North America and Europe
1992
De Steiguer, Joseph Edward
Guidelines for evaluating air pollution impacts on class I wilderness areas in California
1992
Peterson, David L. (David Lawrence)
The 1977 Clean Air Act legally mandated the prevention of significant deterioration (PSD) of air quality related values (AQRVs) on wilderness lands. Federal land managers are assigned the task of protecting these wilderness values. This report contains guidelines for determining the potential effects of incremental increases in air pollutants on natural resources in wilderness areas of the National Forests of California. These guidelines are based on current information about the effects of ozone, sulfur, and nitrogen on AQRVs. Knowledge-based methods were used to elicit these guidelines from scientists and resource managers in a workshop setting. Linkages were made between air pollutant deposition and level of deterioration of specific features (sensitive receptors) of AQRVs known to be sensitive to pollutants. Terrestrial AQRVs include a wide number of ecosystem types as well as geological and cultural values. Ozone is already high enough to injure conifers in large areas of California and is a major threat to terrestrial AQRVs. Aquatic AQRVs include lakes and streams, mostly in high elevation locations. Current sulfur and nitrogen deposition is probably too low to warrant immediate concern in most areas (with the exception of nitrogen deposition at some locations in southern California), although the low buffer capacity of many aquatic systems in California makes them sensitive to potential future increases in acidity. Visibility is considered as a discrete AQRV. Guidelines are presented for determining degradation of visibility based on sensitive views in wilderness areas. Estimates of current deposition of ozone, sulfur, and nitrogen are compiled for all California wilderness areas. Recommendations are included for resource monitoring, data collection, and decision criteria with respect to the disposition of permit applications.
Show more [+] Less [-]Guidelines for evaluating air pollution impacts on Class I wilderness areas in the Pacific Northwest
1992
Peterson, Janice
