00000nam 2200000zi 4500 9.885481 CaOODSP 20241203113654 m o d f cr bn||||||||| 200310s1996 bccab o f000 0 eng d CaOODSP eng rda CaOODSP n-cn-bc x9x9 En14-403/1996E-PDF Evans, Carol, author. Kootenay Park visibility project / [Carol Evans, Joanne Pottier, Bruce Lohanes]. [Vancouver] : Environmental Conservation Branch, Pacific and Yukon Region, 1996. 1 online resource (1 volume (various pagings)) : illustrations, maps text txt rdacontent computer c rdamedia online resource cr rdacarrier Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. "Kootenay National Park is located in southeastern British Columbia on the western slopes of the Rocky Mountains and along the Columbia River valley. Its spectacular mountain views and natural mineral springs have attracted visitors to the area for many years. Recently, concern has been increasing over visibility degradation and the negative impacts this may have on health in the area and on tourism in the Park. Kootenay National Park and Environment Canada have thus entered a partnership to study the poor visibility events and attempt to determine the source(s) of the degradation. … While the study is ongoing, data collected from May 1995 to February 1996 indicate that visibility reduction unrelated to weather systems occurs most frequently under dry stagnation periods, especially in the winter months. The nature of these events tends to fall into two prime categories. One category observed is "local smoke", either in a plume or layers, primarily originating from a nearby beehive burner but also from campfires or woodstoves. The other is "regional haze" which obscures the valley more extensively and likely originates from farther away but occasionally may be local smoke resident in the air longer. Meteorological data has been helpful in identifying and categorizing the nature of these events"--Abstract, page i. Issued also in print format. Visibility British Columbia Kootenay National Park. Air Pollution British Columbia Kootenay National Park. Visibilité Colombie-Britannique Parc national Kootenay. Air Pollution Colombie-Britannique Parc national Kootenay. Canada. Environment Canada. Canada. Conservation and Protection. Pacific and Yukon Region. PDF 4.05 MB https://publications.gc.ca/collections/collection_2020/eccc/en14/En14-403-1996-eng.pdf