TABLE OF CONTENTS
8. ATMOSPHERIC ENVIRONMENT
8.1 Existing Environment
8.1.1 Environmental Assessment Boundaries
8.1.1.1 Administrative Boundaries
8.1.1.2 Technical Boundaries
8.1.2 Methods
8.1.3 Existing Conditions
8.1.3.1 Climate Change
8.1.3.2 Air Sampling Results
8.1.3.3 Winds
8.1.3.4 Temperature and Humidity
8.1.3.5 Precipitation
8.1.3.6 Total Suspended Particulate
8.1.3.7 Dustfall
8.1.3.8 Sulphur Dioxide and Oxides of Nitrogen
8.1.3.9 Chemical Composition of Particulates
8.1.4 Likely Future Conditions
8.2 Environmental Effects Assessment
8.2.1 Microclimate Change
8.2.2 Climate Change
8.2.3 Air Quality
8.2.3.1 Modelling
8.2.3.2 Sources of Air Emissions
8.2.3.3 Results
8.2.4 Visibility
8.2.5 Accidental Events
8.2.6 Cumulative Environmental Effects
8.2.7 Environmental Design, Mitigation and Optimization
8.3 Residual Environmental Effects
8.3.1 Construction
8.3.2 Operation
8.3.3 Decommissioning
8.3.4 Post-Decommissioning
8.3.5 Accidental Events
8.3.6 Monitoring and Follow-up
8.4 References
Appendix 8A Environmental Effects Assessment Summary: Air Quality
Appendix 8B Air Quality Modelling Results
LIST OF FIGURES
Figure 8.1 Atmospheric Environment Assessment Area and Meteorology and Air Sampling Stations
Figure 8.2 Wind Direction Frequency Distribution (%) at Port and Camp Pond Stations
LIST OF TABLES
Table 8.1 Air Quality Criteria
Table 8.2 Monthly Average Wind Speeds and Prevailing Wind Directions at Meteorological Stations
Table 8.3 Monthly Average Temperatures at Meteorological Stations and Nain Historic Normals
Table 8.4 Monthly Average Relative Humidity Values at Meteorological Stations
Table 8.5 Total Suspended Particulate (TSP) Sampling Results
Table 8.6 Voisey's Exploration Camp - Dustfall Sampling Results
Table 8.7 Summary Statistics for NO2 and SO2
Table 8.8 Background Composition of Total Suspended Particulate
Table 8.9 Comparative Levels of Sulphate and Nitrate at Canadian Stations
Table 8.10 Potential Environmental Effects
Table 8.11 Source and Equipment Air Emissions During Construction (Scenario One)
Table 8.12 Source and Equipment Air Emissions During Operations (Scenario Two and Scenario Three)
Table 8.13 Summary of Residual Environmental Effects
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