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Handbook for assessing regional acid deposition exceedances

Description

This technical handbook outlines a methodology for conducting regional/project-based acid deposition assessments using the revised acid deposition management framework [2022], which includes a new ... More ≫

Description

This technical handbook outlines a methodology for conducting regional/project-based acid deposition assessments using the revised acid deposition management framework [2022], which includes a new critical loads function and a steady-state mass balance approach to determine critical loads of acidity for sulphur and nitrogen deposition. The handbook should be utilized to determine suitable acid deposition assessments when required. It has a companion tool and GIS package that can be used to calculate exceedances as per Section 3 of the handbook.

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Using steady-state mass balance model to determine critical loads of acidity for terrestrial ecosystems in Alberta

Description

Benchmarks for atmospheric deposition of acidifying substances for terrestrial ecosystems in Alberta were developed using the steady-state mass balance (SSMB) model. The SSMB model considers both ... More ≫

Description

Benchmarks for atmospheric deposition of acidifying substances for terrestrial ecosystems in Alberta were developed using the steady-state mass balance (SSMB) model. The SSMB model considers both biological response and soil buffering capacity. Alberta soil characteristics, dominant vegetation cover, run off, biomass harvest and grazing, base cation deposition and the impact of wildfires are used to derive these benchmarks or critical loads of acidity for sulphur and nitrogen deposition. This document provides critical load values necessary for acid deposition assessments carried out under the revised 2022 Acid Deposition Management Framework for Alberta. The report outlines the methods used to determine these critical load values and is a companion document to the revised framework.

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2011 acid deposition assessment for Alberta : a report of the acid deposition assessment group

Description

Alberta has developed an acid deposition management framework to manage acidifying emissions and resulting acid deposition levels and effects. The framework requires an evaluation of provincial ... More ≫

Description

Alberta has developed an acid deposition management framework to manage acidifying emissions and resulting acid deposition levels and effects. The framework requires an evaluation of provincial acidifying emissions and resulting acid deposition levels and effects. This report presents the results of the 2011 assessment and reflects the current state of knowledge on provincial acidifying emissions and interpretations of resulting acid deposition levels and effects in the province.

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Site-specific critical loads of acid deposition on soils in the Edmonton 83H West map sheet, Alberta

Description

The Alberta Acid Deposition Management Framework stipulates that Alberta Environment is responsible for conducting an evaluation of the acid deposition monitoring data in the province, as well as ... More ≫

Description

The Alberta Acid Deposition Management Framework stipulates that Alberta Environment is responsible for conducting an evaluation of the acid deposition monitoring data in the province, as well as conducting an evaluation of receptor sensitivity. The present study addresses the latter of these two requirements with respect to potentially acid sensitive soils in the Edmonton East Half map sheet. The objective of this receptor sensitivity study is to provide an estimate of the critical load for the soil types and water bodies in the Edmonton West study area. On the basis of these critical loads estimates, a recommendation regarding the sensitivity of the study area as a whole is provided.

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Site-specific critical loads of acid deposition on soils in the Edmonton 83H East map sheet, Alberta

Description

The Alberta Acid Deposition Management Framework stipulates that Alberta Environment is responsible for conducting an evaluation of the acid deposition monitoring data in the province, as well as ... More ≫

Description

The Alberta Acid Deposition Management Framework stipulates that Alberta Environment is responsible for conducting an evaluation of the acid deposition monitoring data in the province, as well as conducting an evaluation of receptor sensitivity. The present study addresses the latter of these two requirements with respect to potentially acid sensitive soils in the Edmonton East Half map sheet. The objective of this receptor sensitivity study is to provide an estimate of the critical load for the soil types and water bodies in the Edmonton East study area. On the basis of these critical loads estimates, a recommendation regarding the sensitivity of the study area as a whole is provided.

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Alberta acid deposition management framework [2008]

Description

The Alberta Acid Deposition Management Framework is intended to identify potential acidification issues at an early stage and establishes a tiered approach to addressing these issues depending on ... More ≫

Description

The Alberta Acid Deposition Management Framework is intended to identify potential acidification issues at an early stage and establishes a tiered approach to addressing these issues depending on their magnitude.

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Review of the acid deposition management framework and its implementation

Description

This document summarizes conclusions and recommendations arising from the review by the ADAG of the 2004 acid deposition assessment and of the 1999 framework.

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2004 acid deposition assessment for Alberta : a report of the acid deposition assessment group

Description

Alberta has developed an acid deposition management framework to manage acidifying emissions and resulting acid deposition levels and effects. The framework requires an evaluation of provincial ... More ≫

Description

Alberta has developed an acid deposition management framework to manage acidifying emissions and resulting acid deposition levels and effects. The framework requires an evaluation of provincial acidifying emissions and resulting acid deposition levels and effects. This report presents the results of the 2004 assessment.

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The sensitivity of Alberta lakes to acidic deposition

Description

The purpose of this short paper is to highlight some of the scientific and management components of acid deposition as it pertains to northeastern Alberta. These components include: the evaluation ... More ≫

Description

The purpose of this short paper is to highlight some of the scientific and management components of acid deposition as it pertains to northeastern Alberta. These components include: the evaluation of surface waters at risk; the chemistry of Alberta precipitation; actual deposition rates of acidic materials; the proposed, scientifically acceptable deposition rates of these acidic materials; and the magnitude of current emissions of acid forming gases in Alberta.

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