M4 East EIS Volume 2B App H Part 1 Air Quality

M4 East EIS Volume 2B App H Part 1 Air Quality (pdf)

Contents Pages
Glossary of terms and abbreviations viii
Executive summary xi
The project xi
The purpose of this report xii
Scenarios xii
Methods and conclusions xiii
Management of impacts xiv
1 Introduction 1
1.1 Overview of the project 1
1.2 Project location 1
1.3 Purpose of this report 4
1.4 Structure of the Report 5
2 Proposed project 13
2.1 Overview of Chapter 13
2.2 Project features 13
2.3 Construction activities 14
2.4 Specific aspects of design relating to in-tunnel and ambient air quality 18
3 Key air quality issues for the M4 East project 25
3.1 Overview of Chapter 25
3.2 Roads, tunnels and air quality 25
3.3 Sydney tunnels and air quality 27
3.4 Advisory Committee on Tunnel Air Quality 28
3.5 WestConnex Strategic Environmental Review 28
3.6 Community Feedback Report 29
3.7 Summary of key air quality issues 29
4 Regulation of emissions, air pollution and exposure 30
4.1 Overview of Chapter 30
4.2 Policies and regulations for road vehicle emissions 30
4.3 Fuel quality regulations 32
4.4 In-tunnel pollution limits 32
4.5 Tunnel portal emission restrictions 35
4.6 Ambient air quality standards and criteria 35
5 Overview of assessment methodology 40
5.1 Overview 40
5.2 Key documents, guidelines and policies 40
5.3 Consultation with government agencies and ACTAQ 41
5.4 Previous road and tunnel project assessments 41
5.5 General approach 42
5.6 Treatment of uncertainty 52
6 Existing environment 54
6.1 Overview 54
6.2 Terrain and land use 54
6.3 Climate 55
6.4 Meteorology 56
6.5 Emissions 59
6.6 In-tunnel air quality 65
6.7 Ambient air quality 65
7 Assessment of construction impacts 68
7.1 Overview 68
7.2 Construction footprint 68
7.3 Construction activities for the project 69
7.4 Assessment procedure 70
7.5 Step 1: Screening 72
7.6 Step 2: Risk assessment 72
7.7 Step 3: Mitigation 77
7.8 Step 4: Significance of risks 77
8 Assessment of operational impacts 79
8.1 Overview 79
8.2 Emissions 79
8.3 In-tunnel air quality 97
8.4 Dispersion modelling (continues in part 2) 99
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M4 East EIS Volume 2B App H Part 5 Air Quality

M4 East EIS Volume 2B App H Part 5 Air Quality (pdf)

Contents Pages
8.4 Dispersion modelling (continued from part 4) 123
8.5 Results for expected traffic scenarios 126
8.6 Results for regulatory worst case scenarios 172
8.7 Summary of key assumptions 173
8.8 Sensitivity tests 179
9 Assessment of cumulative impacts 182
9.1 Overview 182
9.2 In-tunnel air quality 182
9.3 Ambient air quality 182
10 Management of impacts 183
10.1 Construction impacts 183
10.2 Operational impacts 186
11 Summary and conclusions 196
11.1 Construction impacts 196
11.2 Operational impacts 196
11.3 Management of impacts 200
12 References 201
Appendix A: Traffic pollutants and their effects A
Appendix B: Pollutant formation, dispersion and transformation B
Appendix C: Review of legislation and criteria relating to emissions and air quality C
Appendix D: Examples of previous air quality assessments D
Appendix E: Description and evaluation of emission models E
Appendix F: Existing air quality and assumed background concentrations (continues in part 6) F

M4 East EIS Volume 2B App H Part 6 Air Quality

M4 East EIS Volume 2B App H Part 6 Air Quality (pdf)

Contents Pages
Appendix F: Existing air quality and assumed background concentrations (continued from part 5) F
Appendix G: NOX to NO2 conversion G
Appendix H: Meteorological model evaluation H
Appendix I: Emissions and concentrations for ventilation outlets I
Appendix J: Dispersion model evaluation J
Appendix K: All results of dispersion modelling (continues in part 7) K