All Resources

An empirical analysis of water temperature and dissolved oxygen conditions in the Red Deer River

Description

Temperature and dissolved oxygen (DO) are important water quality variables which affect the viability of fish and other aquatic organisms. These variables can potentially be influenced by river... More ≫

Description

Temperature and dissolved oxygen (DO) are important water quality variables which affect the viability of fish and other aquatic organisms. These variables can potentially be influenced by river flow. Understanding the effects of flow and other factors on these important variables is critical for river management, particularly in the face of increasing demands on river resources. In this report, simple empirical methods are used to investigate the relationships between water temperature, DO, air temperature, and flow at two locations in the Red Deer River. Available water temperature, DO, discharge, and air temperature data were compiled for a number of sites along the Red Deer River. Compliance with water temperature and dissolved oxygen requirements for fish were evaluated at all sites using daily data. Non-compliance with acute and chronic temperature criteria occurred more frequently at stations located in the lower reaches of the river. Violations of oxygen criteria in the...

Tags

Oxygen conditions in the Athabasca River system, with emphasis on winters 1990-93

Description

This report presents the findings of dissolved oxygen monitoring and surveys on the Athabasca River system in the years 1990-93. Dissolved oxygen has been monitored by means longitudinal synoptic... More ≫

Description

This report presents the findings of dissolved oxygen monitoring and surveys on the Athabasca River system in the years 1990-93. Dissolved oxygen has been monitored by means longitudinal synoptic surveys, recording oxygen meters, and a network of regular sampling sites.

Tags

Temperature and dissolved oxygen criteria for Alberta fishes in flowing waters

Description

The objective of this document is to provide temperature dissolved oxygen criteria for selected Alberta fishes that provide for the protection of critical life stages while still retaining the... More ≫

Description

The objective of this document is to provide temperature dissolved oxygen criteria for selected Alberta fishes that provide for the protection of critical life stages while still retaining the flexibility for reasonable water use and other fisheries management options.

Tags

An evaluation of interference by pulp mill effluent in the Azid-Winkler oxygen technique

Description

Bleached kraft pulp mill effluent contains a wide range of organic and inorganic compounds. This report examines if these compounds interfere with Azide-Winkler iodometric method of measuring... More ≫

Description

Bleached kraft pulp mill effluent contains a wide range of organic and inorganic compounds. This report examines if these compounds interfere with Azide-Winkler iodometric method of measuring dissolved oxygen.

Tags

Athabasca River winter reaeration investigation : final report

Description

Proposed and existing pulp mill developments in the Athabasca River Basin impact on winter dissolved oxygen conditions in the rivers that receive their effluent. In 1987, Alberta Environment... More ≫

Description

Proposed and existing pulp mill developments in the Athabasca River Basin impact on winter dissolved oxygen conditions in the rivers that receive their effluent. In 1987, Alberta Environment started using water quality models to simulate dissolved oxygen levels. This information was used to formulate effluent standards and for management of basin water quality. This report describes the theory of air to liquid gas exchange, methods to measure reaeration, the procedure designed to measure under ice reaeration, results of the field study, and conclusions from the study.

Tags