For example, snowpack can be a good integrator of wet and dry deposition. Conduct additional snowpack monitoring to improve quantification of nitrogen inputs. Consider additional measurements of ozone with passive samplers. Long-term deposition of nitrogen could have impacts on both terrestrial and aquatic systems. Local air pollution control agencies, Washington Dept. of Ecology, USDA Forest Service.
Visibility is a highly valued resource by park visitors.
Washington Dept. of Ecology. Local production and uses are very limited, but transport into the park is unknown. Fish may be an appropriate biomonitor. A preliminary assessment of transport potential should be done prior to selecting monitoring sites. Potential impacts in the North Cascades are largely unknown.