130419-03MN107-App G7 Air Monitoring-IA2E.pdf - NIRB

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analyzed by an accredited laboratory for total and fixed (non-combustible) dustfall. Calculated dustfallrates were normalized to 30 days (mg/cm 2 /30 days).3.3 NO 2Concentrations of NO 2 by volume (ppb) were analyzed over one month periods (approximately 30days) using a passive sampling device provided by Maxxam Analytics. No continuous monitoring wasproposed for other gaseous pollutants because of low concentrations predicted in pre-constructiondispersion modelling (Cumberland, 2005).The annual average NO 2 concentration by volume was calculated from the monthly data forcomparison against the relevant standard.3.4 WEATHER DATAWeather data for the dustfall and air quality monitoring periods was collected using the mine site’spermanent weather station. Daily averages for wind speed, wind direction and temperature wereavailable from this station.3.5 GREENHOUSE GAS EMISSIONSAEM is required by the Greenhouse Gas Emissions Reporting Program (GHGRP) to trackgreenhouse gas emissions based on annual fuel consumption, composition and the US EPA’s AP-42emission factors.4 RESULTS4.1 TSP, PM10, PM2.5Sampling dates and 24-h average concentrations of TSP, PM10 and PM2.5 calculated usingvolumetric flow rate (non-STP normalized) and are provided in Table -Apx 1.As mentioned previously the 24-h average concentrations of suspended particulates calculated hereare expected to be higher than they would be if normalized to STP (see Section 3.1). Despite this, allmeasured values were below their respective 24-h GN standards, as shown in Figures 2 - 4.The annual geometric mean concentrations of TSP at DF-1 and DF-2 were 8.04 µg/m 3 and 12.04µg/m 3 , respectively. These estimates are well below the annual GN standard of 60 µg/m 3 .Overall, no clear trends over time or between sampling stations were observed. Several higherconcentrations of PM10 were observed near the beginning of the sampling period (April, 2012) at DF-2, but results of this magnitude were not observed again, and these results may have been due to anunidentified sampling error. PM10 values in 2013 will continue to be monitored with specific attentionto this time period, to determine whether this is a recurring trend.4
180160140DF-1DF-2GN StandardTSP (ug/m 3 )120100806040200Apr-2012May-2012Jun-2012Jul-2012Aug-2012Sep-2012Oct-2012Nov-2012Dec-2012Jan-2013Figure 1. 24-average total suspended particulates (TSP) at Meadowbank DF-1 and DF-2, calculated usingvolumetric flow rate (non-STP-normalized). Dashed line indicates the 24-hr average GN standard forambient air quality, normalized to STP conditions.5
Page 1: Meadowbank Gold Project - 2012 Annu
Page 4 and 5: TABLE OF CONTENTSEXECUTIVE SUMMARY
Page 6 and 7: 1 INTRODUCTION1.1 OBJECTIVESince No
Page 8 and 9: 1.2.3 DF-3Station DF-3 is approxima
Page 12 and 13: 20001500DF-1DF-2PM10(ug/m 3 )100050
Page 14 and 15: As recommended in the 2011 Air Qual
Page 16 and 17: 353025DF-1DF-2GN StandardNO 2(ppb)2
Page 18 and 19: The Partisol instrument should be s
Page 20 and 21: Appendix AData Tables
Page 22 and 23: StartEndTSP (µg/m 3 /30 d) PM10 (
Page 24 and 25: Table -Apx 4. Average temperature,
Page 26 and 27: DateAverage Temperature Wind Speed
Page 34 and 35: TECHNICAL MEMORANDUMAgnico Eagle Mi
Page 36 and 37: entrainment of particulates from th
Page 38: Turn LakeWally LakeLegend!(Air Qual
Page 41 and 42: 4 ConclusionsThe results of this pr

130419-03MN107-App G7 Air Monitoring-IA2E.pdf - NIRB

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