Long-Range Transport of Airborne Pollutants

Atmospheric Monitoring Network Operations and Results in Canada.- The Influence of Surface Structure on Predicted Particle Dry Deposition to Natural Grass Canopies.- Estimates for the Long-Range Transport of Air Pollution.- Source Regions of Summertime Ozone and Haze Episodes in the Eastern United States.- Lake Ontario Atmospheric Deposition 1969–1978.- Estimation of Wet and Dry Deposition of Pollutant Sulfur in Eastern Canada as a Function of Major Source Regions.- The Effects of Sulfate and Non-Sulfate Particles on Light Scattering at the Mauna Loa Observatory.- Impact of New York State Emission Sources on Class 1 Areas.- Modeling of First Plume Encounters with Precipitation.- A Computed Sulphur Budget for the Eastern Canadian Provinces.- Modeling of Pollutant Transport and Removal During a Regional Sulfate Episode.- Effects of Varying Air Trajectories on Spatial and Temporal Precipitation Chemistry Patterns.- Bridging the Gap between Air Quality and Precipitation Chemistry.- An Analysis of Spatial Variability of the Dominant Ions in Precipitation in the Eastern United States.- The Cation Denudation Rate as a Quantitative Index of Sensitivity of Eastern Canadian Rivers to Acidic Atmospheric Precipitation.- Modern and Paleolimnological Evidence for Accelerated Leaching and Metal Accumulation in Soils in New England, Caused by Atmospheric Deposition.- The Use of Calibrated Lakes and Watersheds for Estimating Atmospheric Deposition near a Large Point Source.- Biological, Chemical and Physical Responses of Lakes to Experimental Acidification.- Effects of Experimental Acidification on Macroinvertebrate Drift Diversity in a Mountain Stream.- Aluminum Toxicity to Fish in Acidic Waters.- Liming of Acidified Lakes: Induced Long-Term Changes.- Structure and Productivity ofEpiphytic Algal Communities on Lobelia dortmanna L. in Acidified and Limed Lakes.- The Effect of pH and Calcium on Fish and Fisheries.- Acidification of Nova Scotia Lakes I: Response of Diatom Assemblages in the Halifax Area.- Oxidant Effects on Forest Tree Seedling Growth in the Appalachian Mountains.- Effects of Acidic Precipitation and Acidity on Soil Microbial Processes.- Effects of Acidity in Precipitation on Terrestrial Vegetation.- Potential Effects of Acid Precipitation on Soil Nitrogen and Productivity of Forest Ecosystems.- An Acid Deposition Perspective for Northeastern Alberta and Northern Saskatchewan.- The Effects of Simulated Acid Precipitation on Photosynthesis in the Caribou Lichen Cladina stellaris (Opiz) Brodo.- Announcement.- Index to Volume 18, Nos. 1, 2, and 3.