hide You are viewing an archived web page, collected at the request of University of Alberta using Archive-It. This page was captured on 16:34:44 Dec 08, 2010, and is part of the HCF Alberta Online Encyclopedia collection. The information on this web page may be out of date. See All versions of this archived page.
Heritage Community Foundation Presents
Alberta Online Encyclopedia
Top Left of Navigation Bar The Nature of Alberta Logo
Species at Risk in AlbertaView our site layout to navigate to specific areasSearch our site for informationObtain help for navigating our sitePlease emails us your questions and comments!View our partners that helped us in this project

Ecosystems OverviewEnvironmental IssuesGeological History of AlbertaAlberta's Natural RegionsAdditional Resources
Visit Alberta Source!
Visit the Heritage Community Foundation
Visit Canada's Digital Collections

Changes in Water Quality

Water quality changes can be the result of naturally occurring events or as a result of human activity.  When water vapour in the air condenses to form rain, it may pick up tiny air-borne impurities that become part of the rain drop.  As rainwater seeps through rocks or soil, it may dissolve minerals or other water soluble substances that give the water some of its chemical characteristics.  Flowing water picks up many objects and carries sediments.  Water quality also changes with the seasons as temperature, volume of flow, turbidity and biological activity respond to the seasonal differences.

Apart from the natural changes, Humans are responsible for a great many changes to the quality of water.  These changes can be a result of industrial, agricultural, municipal or recreational activities.

Reprinted from Focus On Water Quality  (1993) with permission of Alberta Environment.

Albertasource.ca | Contact Us | Partnerships
            For more on the natural history of Alberta, visit Peel’s Prairie Provinces.
Copyright © Heritage Community Foundation All Rights Reserved