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Ambient Air Quality in PA During COVID-19 Pandemic Air Quality Technical Advisory Committee Meeting August 13, 2020 Via Webinar Tom Wolf, Governor Patrick McDonnell, Secretary Agenda Focus on Three Pollutants: NO 2 (NO x ), Ozone,


  1. Ambient Air Quality in PA During COVID-19 Pandemic Air Quality Technical Advisory Committee Meeting August 13, 2020 Via Webinar Tom Wolf, Governor Patrick McDonnell, Secretary

  2. Agenda – Focus on Three Pollutants: • NO 2 (NO x ), Ozone, and Black Carbon – Emission Trends – 2019 vs. 2020 • Vehicles: Traffic Counts – Satellite Data – 2019 vs. 2020 • TROPOMI NO2 Satellite Data – Air Monitoring Trends – 2019 vs. 2020 2

  3. The Three Air Pollutants: NO2, Ozone, and Black Carbon 3

  4. The Air Pollutants – NO2 Source: PADEP’s Driving PA Forward Campaign 4

  5. The Air Pollutants – Ozone Source: The Ozone Hole website 5

  6. The Air Pollutants – Black Carbon Source: Phys.org website 6

  7. 2019-20 PADEP Analysis Timeline Stay At Home Period (First 42 Days) 1 21 42 COVID Day: 2019: Sunday, April 7, 2019 Sunday, April 28, 2019 Monday, March 18, 2019 2020: Monday, March 16, 2020 Sunday, April 5, 2020 Sunday, April 26, 2020 2019: Friday, May 10, 2019 Saturday, May 25, 2019 Sunday, June 9, 2019 2020: Sunday, June 7, 2020 Friday, May 8, 2020 Saturday, May 23, 2020 69 84 54 COVID Day: Loosening Period (31 Days) 7

  8. Vehicles: Traffic Counts 2019 vs. 2020 8

  9. Vehicles (Traffic Counts) Stay At Home Period Monday, March 16, 2020 to Sunday, April 26, 2020 9

  10. PennDOT Traffic Monitor Locations Site 96 Site 3077 Site 1623 Site 1640 Site 701 10

  11. Daily Traffic Counts – Site 96 (I-279, Pittsburgh) 11

  12. Daily Traffic Counts – Site 1623 (I-81, Carlisle) 12

  13. Daily Traffic Counts – Site 3077 (I-78, Allentown) 13

  14. Hour Traffic Counts – Site 1640 (Rt. 581, Hbg) Weekday Traffic Counts 14

  15. Hour Traffic Counts – Site 3077 (I-78, Allentown) Weekday Traffic Counts 15

  16. Hour Traffic Counts – Site 3077 (I-78, Allentown) Weekend Traffic Counts 16

  17. Hour Traffic Counts – Site 701 (I-276, Philly) Weekday Traffic Counts 17

  18. Traffic Counts Loosening Period Friday, May 8, 2020 to Sunday, June 7, 2020 18

  19. Daily Traffic Counts – Site 96 (I-279, Pittsburgh) Yellow Phase – Since May 15 (24 Days) 19

  20. Daily Traffic Counts – Site 1623 (I-81, Carlisle) Yellow Phase – Since May 22 (17 Days) 20

  21. Daily Traffic Counts – Site 3077 (I-78, Allentown) Yellow Phase – Since June 5 (3 Days) 21

  22. Hour Traffic Counts – Site 1640 (Rt. 581, Hbg) Weekday Traffic Counts Yellow Phase – Since May 22 (17 Days) 22

  23. Hour Traffic Counts – Site 3077 (I-78, Allentown) Weekday Traffic Counts Yellow Phase – Since June 5 (3 Days) 23

  24. Hour Traffic Counts – Site 3077 (I-78, Allentown) Weekend Traffic Counts Yellow Phase – Since June 5 (3 Days) 24

  25. Hour Traffic Counts – Site 701 (I-276, Philly) Weekday Traffic Counts Yellow Phase – Since June 5 (3 Days) 25

  26. TROPOMI NO 2 Satellite Data: 2019 vs. 2020 26

  27. TROPOMI NO2 Satellite Data Stay At Home Period Monday, March 16, 2020 to Sunday, April 26, 2020 27

  28. Regional NO 2 – Mid March-Mid April 2019 28

  29. Regional NO 2 – Mid March-Mid April 2020 29

  30. PA NO 2 – Mid March-Mid April 2019 30

  31. PA NO 2 – Mid March-Mid April 2020 31

  32. Pitt NO 2 – Mid March-Mid April 2019 32

  33. Pitt NO 2 – Mid March-Mid April 2020 33

  34. Susq Valley NO 2 – Mid March-Mid April 2019 34

  35. Susq Valley NO 2 – Mid March-Mid April 2020 35

  36. Philly NO 2 – Mid March-Mid April 2019 36

  37. Philly NO 2 – Mid March-Mid April 2020 37

  38. Traffic Counts Loosening Period Friday, May 8, 2020 to Sunday, June 7, 2020 38

  39. Regional NO 2 – Early May-Early June 2019 39

  40. Regional NO 2 – Early May-Early June 2020 40

  41. PA NO 2 – Early May-Early June 2019 41

  42. PA NO 2 – Early May-Early June 2020 42

  43. Pitt NO 2 – Early May-Early June 2019 43

  44. Pitt NO 2 – Early May-Early June 2020 Yellow Phase – Most of Region Since May 15 (24 Days) 44

  45. Susq Valley NO 2 – Early May-Early June 2019 45

  46. Susq Valley NO 2 – Early May-Early June 2020 Yellow Phase – Most of Region Since May 22 (17 Days) 46

  47. Philly NO 2 – Early May-Early June 2019 47

  48. Philly NO 2 – Early May-Early June 2020 Yellow Phase – Most of Region Since June 5 (3 Days) 48

  49. PA Air Monitoring Data: 2019 vs. 2020 49

  50. PA NO 2 Monitor Locations 50

  51. PA NO 2 Monitor Locations (Focus Area) Towanda Scranton Beaver Falls ACHD – Parkway East (Near Road NO2) PAMS - Montgomery (Near Road NO2) 51

  52. TROPOMI NO2 Satellite Data Stay At Home Period Monday, March 16, 2020 to Sunday, April 26, 2020 52

  53. Weekday NO 2 Concentrations – Beaver Falls 53

  54. Weekday NO 2 Concentrations – Parkway East 54

  55. Weekday NO 2 Concentrations – Towanda 55

  56. Weekday NO 2 Concentrations – Scranton 56

  57. Weekday NO 2 Concentrations – Montgomery 57

  58. Weekend NO 2 Concentrations – Montgomery 58

  59. Traffic Counts Loosening Period Friday, May 8, 2020 to Sunday, June 7, 2020 59

  60. Weekday NO 2 Concentrations – Beaver Falls Yellow Phase – Since May 22 (17 Days) 60

  61. Weekday NO 2 Concentrations – Parkway East Yellow Phase – Since May 15 (24 Days) 61

  62. Weekday NO 2 Concentrations – Towanda Yellow Phase – Since May 8 (31 Days) 62

  63. Weekday NO 2 Concentrations – Scranton Yellow Phase – Since June 5 (3 Days) 63

  64. Weekday NO 2 Concentrations – Montgomery Yellow Phase – Since June 5 (3 Days) 64

  65. Weekend NO 2 Concentrations – Montgomery Yellow Phase – Since June 5 (3 Days) 65

  66. PA Ozone Monitor Locations 66

  67. PA Ozone Monitor Locations (Focus Area) Beaver Falls Johnstown York Bristol York DW 67

  68. TROPOMI NO2 Satellite Data Stay At Home Period Monday, March 16, 2020 to Sunday, April 26, 2020 68

  69. Weekday Ozone Concentrations – Beaver Falls 69

  70. Weekday Ozone Concentrations – Johnstown 70

  71. Weekday Ozone Concentrations – York 71

  72. Weekday Ozone Concentrations – York DW 72

  73. Weekday Ozone Concentrations – Bristol 73

  74. Traffic Counts Loosening Period Friday, May 8, 2020 to Sunday, June 7, 2020 74

  75. Weekday Ozone Concentrations – Beaver Falls Yellow Phase – Since May 22 (17 Days) 75

  76. Weekday Ozone Concentrations – Johnstown Yellow Phase – Since May 15 (24 Days) 76

  77. Weekday Ozone Concentrations – York Yellow Phase – Since May 22 (17 Days) 77

  78. Weekday Ozone Concentrations – York DW Yellow Phase – Since May 22 (17 Days) 78

  79. Weekday Ozone Concentrations – Bristol Yellow Phase – Since June 5 (3 Days) 79

  80. Black Carbon Monitor Locations ACHD – Parkway East PAMS – Montgomery 80

  81. TROPOMI NO2 Satellite Data Stay At Home Period Monday, March 16, 2020 to Sunday, April 26, 2020 81

  82. Weekday BC Concentrations – Parkway East 82

  83. Weekend BC Concentrations – Parkway East 83

  84. Weekday BC Concentrations – Montgomery 84

  85. Traffic Counts Loosening Period Friday, May 8, 2020 to Sunday, June 7, 2020 85

  86. Weekday BC Concentrations – Parkway East Yellow Phase – Since May 15 (24 Days) 86

  87. Weekend BC Concentrations – Parkway East Yellow Phase – Since May 15 (24 Days) 87

  88. Weekday BC Concentrations – Montgomery Yellow Phase – Since June 5 (3 Days) 88

  89. Summary – Since the start of the Stay at Home period, there has been a reduction in total vehicles traveled across Pennsylvania. However, truck traffic remained relatively unchanged. – As a result, PA saw a decline in its air monitoring data (NO 2 , ozone and black carbon). The greatest decline has been during weekdays. – Over the latest 31 days (May 8 – June 7), as traffic levels have begun to increase, NO 2 levels have approached seasonal averages. Ozone is higher than 2019 in western PA and lower across eastern PA in urban areas (rural areas are higher). Compared to 2019, black carbon in 2020 has decreased in Pittsburgh and increased in Philadelphia. 89

  90. Sean Nolan Environmental Group Manager Air Quality Monitoring Division 717-772-2303 senolan@pa.gov

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