treasure valley road dust study: final report - ResearchGate

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Table 2-3. Silt Content and Silt Loading from Winter Road Samples in Ada and Canyon Counties Location County Road Type Sample Date Area (m 2 ) Sample Weight (g) Silt (g) Silt content (%) Silt Loading (g/m 2 ) Front St. Between 3rd and 5th Ada Arterial 3/4/2001 71.2 907 169 22 2.8 Maple Grove North of Tillamook Ada Arterial 3/6/2001 92.7 554 151 36 2.1 Garrity Blvd. Between Cavalry and 11th Canyon Arterial 3/7/2001 97.3 977 79 9.0 0.9 Riva Ridge North of Reutzel Dr. Ada Collector 3/1/2001 37.2 2601 24 0.9 0.7 13th St. North of Hays Ada Collector 3/4/2001 69.7 521 73 18 1.3 Amity Between Colorado and Canyon Diamond Collector 3/7/2001 36.7 602 180 40 6.6 Apple St. Between Wright and LaFayette Ada Local 3/3/2001 30.2 619 114 23 4.7 West Park Dr. West of Milwaukee Ada Local 3/6/2001 49.5 709 56 9.5 1.4 6th St. Between 6th Avenue and 7th Ave Canyon Local 3/7/2001 63.2 4342 181 8.6 5.9 Howry Ada Unpaved 3/6/2001 4.2 3823 43 1.1 Cloverdale Farm Road Ada Unpaved 3/17/2001 4.2 1595 33 2.1 Pierce Park Ada Unpaved 3/16/2001 4.2 969 7.7 0.8 Unpaved Driveway Off Happy Valley Canyon Unpaved 3/7/2001 4.2 1447 23 1.6 De-icing Ada County Highway District Ada Material, TC 3/8/2001 N/A 2213 6.5 0.3 Sand Table 2-4. Summary of Winter Silt Measurements by County Road Type County Average Silt % Standard Deviation Silt % Average Silt Loading (g/m 2 ) Standard Deviation Silt Loading (g/m 2 ) Arterial Ada 29 9.7 2.5 0.5 Arterial Canyon 9.0 N/A 0.9 N/A Arterial Ada & Canyon 22 13 1.9 1.0 Collector Ada 9.3 12 1.0 0.5 Collector Canyon 40 N/A 6.6 N/A Collector Ada & Canyon 20 20 2.9 3.3 Local Ada 16 9.4 3.0 2.4 Local Canyon 8.6 N/A 5.9 N/A Local Ada & Canyon 14 8.0 4.0 2.3 Unpaved Ada 1.3 0.7 N/A N/A Unpaved Canyon 1.6 N/A N/A N/A Unpaved Ada & Canyon 1.4 0.6 2-6
Table 2-5 Silt Content and Silt Loading from Summer Road Samples in Ada and Canyon Counties Location County Road Type Sample Date Area (m 2 ) Sample Weight (g) Silt (g) Silt (%) Silt Loading (g/m 2 ) Front St. Between 3rd and 5th Ada Arterial 7/14/2001 71.2 314 27 9 0.4 Maple Grove North of Tillamook Ada Arterial 7/12/2001 92.7 136 32 24 0.3 Garrity Blvd. Between Cavalry and 11th Canyon Arterial 7/17/2001 97.3 539 81 15.1 0.8 Riva Ridge North of Reutzel Dr. Ada Collector 7/12/2001 37.2 1645 37 2.2 1.0 13th St. North of Hays Ada Collector 7/13/2001 69.7 226 33 15 0.5 Amity Between Colorado and Canyon Diamond Collector 7/17/2001 36.7 220 24 11 0.7 Apple St. Between Wright and LaFayette Ada Local 7/13/2001 30.2 82 19 23 0.6 West Park Dr. West of Milwaukee Ada Local 7/14/2001 49.5 54 8 14.0 0.2 6th St. Between 6th Avenue and 7th Ave Canyon Local 7/17/2001 2.8 1155 14 1.2 5.0 Cloverdale Farm Road Ada Unpaved 7/26/2001 4.2 1975 81 4.1 Pierce Park Ada Unpaved 7/25/2001 4.2 1796 27 1.5 Road Near Lucky Peak Dam Canyon Unpaved 7/25/2001 4.2 1612 77 4.8 Table 2-6 Summary of Summer Silt Measurements by County Road Type County Average Silt % Standard Deviation Silt % Average Silt Loading (g/m 2 ) Standard Deviation Silt Loading (g/m 2 ) Arterial Ada 16 10.6 0.4 0.0 Arterial Canyon 15.1 N/A 0.8 N/A Arterial Ada & Canyon 16 8 0.5 0.3 Collector Ada 8.5 9 0.7 0.4 Collector Canyon 11 N/A 0.7 N/A Collector Ada & Canyon 9 6 0.7 0.3 Local Ada 19 6.5 0.4 0.3 Local Canyon 1.2 a N/A 5.0 a N/A Local Ada & Canyon 19 a 6.5 a 0.4 a 0.3 a Unpaved Ada 3.5 1.7 N/A N/A Unpaved Canyon N/A b N/A b N/A N/A Unpaved Ada & Canyon 3.5 b 1.7 b N/A N/A a Sampling of the “Local” road from Canyon County occurred when pre-treatment for chip-sealing was in place. Dusty gravel covered the road surface. This sample is not included in the average value for Ada and Canyon Counties since it is not representative of road conditions. b No samples of unpaved road dirt were procured from Canyon County during the summer 2001 sampling season only. The average for Ada and Canyon Counties has ben computed based on three samples from Ada County 2-7
Page 1: TREASURE VALLEY ROAD DUST STUDY: FI
Page 5 and 6: EXECUTIVE SUMMARY The Idaho Departm
Page 7 and 8: TABLE OF CONTENTS 1. INTRODUCTION..
Page 9: 6.3 DISCUSSION ....................
Page 12 and 13: are strongly correlated and that on
Page 14 and 15: Figure 4-17. Map of street sweeper
Page 16 and 17: xvi
Page 18 and 19: Table 5-3. Speeds and VKT by county
Page 20 and 21: Table A-28. Laboratory Silt Analysi
Page 22 and 23: ?? To assess the impact of winterti
Page 25 and 26: 2. SILT MEASUREMENTS For this study
Page 27 and 28: vehicle tires. The lengths of the s
Page 29: Figure 2-1. Map of Sample Collectio
Page 33: collectors. In contrast, summer sil
Page 36 and 37: 3.2 TRAKER Measurements For the TVR
Page 38 and 39: introduced by the carbon vanes insi
Page 40 and 41: 3.2.4.1 Data Acquisition The TRAKER
Page 42 and 43: Figure 3-6 shows the TRAKER coeffic
Page 44 and 45: 250 200 PM2.5 signal (mg/m 3 ) 150
Page 46 and 47: Line losses associated with the Dus
Page 48 and 49: 1.2 1 Left Diluted Right Diluted Pr
Page 50 and 51: Table 3-2. Regression exponents for
Page 52 and 53: 3.4.2 Flux Calculation from Meteoro
Page 54 and 55: 12.2 m 0.16 9.0 m 0.05 5.7 m 0.22 4
Page 56 and 57: 400 Ford Ranger on NS Road by DW1 4
Page 58 and 59: ceiling can be further stretched to
Page 60 and 61: 100 sL = 2.5717(T*) 0.4741 R 2 = 0.
Page 62 and 63: 4.1.1 Converting TRAKER Data Into E
Page 64 and 65: Table 4-1. (cont) GIS coverages use
Page 66 and 67: Table 4-1. (cont) GIS coverages use
Page 68 and 69: a. b. Figure 4-1. Map of TRAKER Str
Page 70 and 71: egressions, R 2 and P-values are al
Page 72 and 73: Summer - Ada - Rural Summer - Ada -
Page 74 and 75: The average emissions factor is 6.7
Page 76 and 77: Figure 4-5. TRAKER Loop 4.3.1 Tempo
Page 78 and 79: 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
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7.3 Source Profile Summary This a p
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Table 7-4. Source profiles of Summe
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Table 7-6. Source profiles of Winte
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Bliss experiments were significant
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section was swept with a vacuum swe
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8.3 Differences Between Emissions M
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determine at this time what fractio
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sweepers to reduce PM 10 emissions
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McMahon T.A., and P.J. Denison (197
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Figure A-1. Map of Sample Collectio
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Table A-2. Summer 2001 Silt Samplin
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Table A-3. Laboratory Silt Analysis
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Figure A-3. Map of Silt Loading Loc
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Table A-10. Laboratory Silt Analysi
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Figure A-11. Sampling locations of
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APPENDIX B. BOISE PRECIPITATION AND
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Pecentile among days with precipita
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A.1 Wind speed The cumulative frequ
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APPENDIX C : EMISSIONS INVENTORIES:
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C.1.1.2a Field List for worksheets
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values specified by AP-42 and do no
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