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Wabamun Lake oil spill August 2005 : data report for water and sediment quality in the pelagic area of the lake (August 4-5 to September 15, 2005)

Description

This report provides a summary of the chemical data (extractable and volatile priority pollutants, PAH, and trace metals) collected from water and sediments in the pelagic zone of the lake on the... More ≫

Description

This report provides a summary of the chemical data (extractable and volatile priority pollutants, PAH, and trace metals) collected from water and sediments in the pelagic zone of the lake on the days and weeks following the spill.

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Overview of pesticide data in Alberta surface waters since 1995

Description

Alberta Environment (AENV) has measured pesticides in surface waters since the mid-1980’s and reports on pesticide concentrations in surface waters as part of its evaluation and reporting... More ≫

Description

Alberta Environment (AENV) has measured pesticides in surface waters since the mid-1980’s and reports on pesticide concentrations in surface waters as part of its evaluation and reporting responsibilities. In 1995 the approach to pesticide monitoring was updated to link ambient monitoring to pesticide sale records. Every five years provincial pesticide sales data, information on pesticide behaviour and toxicity, and results of surface water monitoring programs, are reviewed to priorize active ingredients that need to be monitored in surface waters. The overall objective of this report is to provide an overview of the extent and nature of pesticide contamination in Alberta’s surface waters. The overview covers all data from 1995 to 2002 inclusive that are stored on the AENV Water Data System.

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Glyphosate residues in Alberta's atmospheric deposition, soils and surface waters

Description

Glyphosate is a non-selective herbicide used for the control of annual and perennial grasses and broadleaf weeds. Registered for use in Canada in 1974, it is currently registered and used in over... More ≫

Description

Glyphosate is a non-selective herbicide used for the control of annual and perennial grasses and broadleaf weeds. Registered for use in Canada in 1974, it is currently registered and used in over 125 countries. With annual sales in Alberta (1998) exceeding 2.6 million kg of active ingredient, it is by far the most commonly used pesticide in the province. Long considered by scientists and farmers around the world as an effective and environmentally friendly herbicide, recent studies have shown some persistence and mobility in the environment.

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Spatial variability of water quality in Wabamun Lake (July 2002) data report

Description

The objective of the sampling program initiated by AENV in July 2002 was to scope out the degree of spatial variability in Wabamun Lake water quality. Eight other lakes were also sampled to allow... More ≫

Description

The objective of the sampling program initiated by AENV in July 2002 was to scope out the degree of spatial variability in Wabamun Lake water quality. Eight other lakes were also sampled to allow comparisons of the intra- and inter-lake variability in water quality. This document provides a compilation of the data and highlights the major findings

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A survey of metals and trace organic compounds in sediments from Wabamun Lake and other Alberta lakes

Description

In 2002 Alberta Environment (AENV) initiated several studies (including this one) in response to complaints about murky water in the lake near the TransAlta Utilities Corporation (TAU) ash lagoon... More ≫

Description

In 2002 Alberta Environment (AENV) initiated several studies (including this one) in response to complaints about murky water in the lake near the TransAlta Utilities Corporation (TAU) ash lagoon outfall and in support of an investigation on fish mortality. The specific objectives of this study were to document surficial sediment quality of Wabamun Lake with respect to metals and trace organics and to compare results with those from other lakes.

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Determination of new pesticides in Alberta's surface waters (1999-2000)

Description

This two-year project was initiated in 1999 with the following objectives: 1) To identify pesticides that are used intensively on locally grown specialty crops (such as corn, sugar beets,... More ≫

Description

This two-year project was initiated in 1999 with the following objectives: 1) To identify pesticides that are used intensively on locally grown specialty crops (such as corn, sugar beets, potatoes) and have not been monitored, or new pesticides that are used broadly across the province; and 2) To implement a sampling program to determine, at a scoping level, the occurrence and concentration of these chemicals in surface waters.

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Baseline pesticide data for semi-permanent wetlands in the Aspen Parkland of Alberta

Description

Semi-permanent wetlands in the Aspen Parkland eco-region are important habitat for migratory waterfowl and offer valuable habitat for pairing and brood rearing. A water quality study was conducted... More ≫

Description

Semi-permanent wetlands in the Aspen Parkland eco-region are important habitat for migratory waterfowl and offer valuable habitat for pairing and brood rearing. A water quality study was conducted to establish pesticide baseline data for these wetlands. A second objective of this study was to evaluate, at a scoping level, the potential importance of atmospheric loading of pesticides to these wetlands. The literature documents the importance of overland runoff as a pathway of pesticide movement to surface waters, but increasing evidence also points to the importance of atmospheric deposition.

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Water quality of the Battle River

Description

In 1989-1990 Alberta Environment undertook a study of the water quality of the Battle River from its source to its confluence with the North Saskatchewan River. This report provides a... More ≫

Description

In 1989-1990 Alberta Environment undertook a study of the water quality of the Battle River from its source to its confluence with the North Saskatchewan River. This report provides a non-technical summary of the study design, major findings and conclusions presented in two other major reports: "Water Quality of the Battle River" and "multi-Media Monitoring of Trace Metals and Pesticides in the Battle River 1989-1990".

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Bacterial surveys in the Red Deer River (1996-1998)

Description

This report addresses two issues concerning the bacterial quality o the lower Red Deer River: 1) the increase in fecal coliform counts and incidence of non-compliance with water quality objecgives... More ≫

Description

This report addresses two issues concerning the bacterial quality o the lower Red Deer River: 1) the increase in fecal coliform counts and incidence of non-compliance with water quality objecgives set by the Prairie Provinces Water Board (PPWBO) at the Alberta-Saskatchewan border, 2) the implications of discontinuing chlorine treatment of the Drumheller, East Coulee and Rosedale final municipal effluents on bacterial quality of the Red Deer River.

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Zoobenthos surveys in the Gregg and McLeod rivers 1985

Description

This report focuses primarily on the use of benthic invertebrate communities as a biomonitoring tool to assess the impacts of coal mining and other activities in the McLeod River Basin.

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