treasure valley road dust study: final report - ResearchGate

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Figure A-11. Sampling locations of unpaved <strong>road</strong> material: Howry Road, Ada County, ID. A-32
Table A-21. Laboratory Silt Analysis of Winter 2001 Howry Sample Sample ID: RS589 Composite: Gross Weight Tape BOISL034 1570.4 na BOISL035 2213.3 na BOISL036 3636.1 na Total 7419.8 Sieving: splitter used before silt pan sample diff % diff Tare 698.6 20 min 715.4 16.8 30 min 735.9 37.3 20.5 55.0 40 min 741.1 42.5 5.2 12.2 Mass Determination Screen Tare weight (g) Final Weight(g) Net weight(g) Lid 215.8 216.3 0.5 1/4 inch 489.2 1072.3 583.1 4 mesh 444.2 647.2 203.0 18 mesh 370.6 1691.2 1320.6 30 mesh 444.1 1235.0 790.9 50 mesh 408.4 1171.2 762.8 100 mesh 383.9 449.8 65.9 200 mesh 378.8 433.6 54.8 Pan + 400 698.6 741.1 42.5 Total Stack 3833.1 7656.4 3823.3 Total Stack (with sample) 7656.7 Total Stack (calc) 3833.6 7657.7 3824.1 . Silt Calculation Total stack 7656.4 Tare stack 3833.1 Total sample 3823.3 Total silt 42.5 % Silt (
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TREASURE VALLEY ROAD DUST STUDY: FI
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EXECUTIVE SUMMARY The Idaho Departm
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TABLE OF CONTENTS 1. INTRODUCTION..
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6.3 DISCUSSION ....................
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are strongly correlated and that on
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Figure 4-17. Map of street sweeper
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xvi
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Table 5-3. Speeds and VKT by county
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Table A-28. Laboratory Silt Analysi
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?? To assess the impact of winterti
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2. SILT MEASUREMENTS For this study
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vehicle tires. The lengths of the s
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Figure 2-1. Map of Sample Collectio
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Table 2-5 Silt Content and Silt Loa
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collectors. In contrast, summer sil
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3.2 TRAKER Measurements For the TVR
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introduced by the carbon vanes insi
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3.2.4.1 Data Acquisition The TRAKER
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Figure 3-6 shows the TRAKER coeffic
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250 200 PM2.5 signal (mg/m 3 ) 150
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Line losses associated with the Dus
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1.2 1 Left Diluted Right Diluted Pr
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Table 3-2. Regression exponents for
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3.4.2 Flux Calculation from Meteoro
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12.2 m 0.16 9.0 m 0.05 5.7 m 0.22 4
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400 Ford Ranger on NS Road by DW1 4
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ceiling can be further stretched to
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100 sL = 2.5717(T*) 0.4741 R 2 = 0.
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4.1.1 Converting TRAKER Data Into E
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Table 4-1. (cont) GIS coverages use
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Table 4-1. (cont) GIS coverages use
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a. b. Figure 4-1. Map of TRAKER Str
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egressions, R 2 and P-values are al
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Summer - Ada - Rural Summer - Ada -
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The average emissions factor is 6.7
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Figure 4-5. TRAKER Loop 4.3.1 Tempo
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weeks prior to being swept. While t
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4.3.2 Meteorological Effects on Unp
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Section 1 Section 2 Section 3 Figur
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Figure 4-13. Johnston HSD mechanica
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Approximately 8 hours after the ini
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One-second emissions potentials (i.
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5. EMISSIONS INVENTORIES FOR THE TR
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where E i.10 is the emissions in gr
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County Setting Road Class Speed (m/
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January, February, and March were u
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5.1.3.2a January 1 - 9, 2000, 2010,
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Table 5-9 Precipitation and snow co
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complete link-level emissions inven
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Table 5-14. Distributions of averag
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Taken on an average annual basis, T
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Z n , K zn , ? c/ ? z n Z 3 , K z3
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Table 6-1. Aerodynamic particle siz
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14 m 0 s 15 s 30 s 60 s 120 s 240 s
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Furthermore, the vertical profile o
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?? Sieving each sample to obtain a
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7-4 Table 7-1. Source Profile Key M
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Table 6-1 (continued). Table of geo
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Treasure Valley Road Dust Winter Pa
Page 127 and 128: 7.3 Source Profile Summary This a p
Page 129 and 130: Table 7-4. Source profiles of Summe
Page 131: Table 7-6. Source profiles of Winte
Page 134 and 135: Bliss experiments were significant
Page 136 and 137: section was swept with a vacuum swe
Page 138 and 139: 8.3 Differences Between Emissions M
Page 140 and 141: determine at this time what fractio
Page 142 and 143: sweepers to reduce PM 10 emissions
Page 144 and 145: McMahon T.A., and P.J. Denison (197
Page 146 and 147: Figure A-1. Map of Sample Collectio
Page 148 and 149: Table A-2. Summer 2001 Silt Samplin
Page 150 and 151: Table A-3. Laboratory Silt Analysis
Page 152 and 153: Figure A-3. Map of Silt Loading Loc
Page 160 and 161: Table A-10. Laboratory Silt Analysi
Page 178 and 179: Figure A-12. Sampling locations of
Page 184 and 185: Figure A-14. Sampling locations of
Page 189 and 190: APPENDIX B. BOISE PRECIPITATION AND
Page 191 and 192: Pecentile among days with precipita
Page 193 and 194: A.1 Wind speed The cumulative frequ
Page 195 and 196: APPENDIX C : EMISSIONS INVENTORIES:
Page 197 and 198: C.1.1.2a Field List for worksheets
Page 199 and 200: values specified by AP-42 and do no
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