ID: 1208

AQSQID: 380070002

Site Name: Theodore Roosevelt Np - Painted Canyon Vc

Added: April 21, 2020, 6:24 p.m.

Updated: July 25, 2021, 8:54 p.m.

Location: Medora (E Riv Rd), ND

Reporting: True, Located: True

Current AQI: 101.0

Medora (E Riv Rd) ND, US: 46.949699, -103.514397

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 25, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 71.0 ppb (101) N/A N/A 26.2 μg/m3 (81) 101.0
 
July 25, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 72.0 ppb (102) N/A N/A 27.7 μg/m3 (84) 102.0
 
July 25, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 69.0 ppb (97) N/A N/A 33.7 μg/m3 (97) 97.0
 
July 25, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 66.0 ppb (87) N/A N/A 38.0 μg/m3 (108) 108.0
 
July 25, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 66.0 ppb (87) N/A N/A 37.0 μg/m3 (105) 105.0
 
July 25, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A 32.7 μg/m3 (95) 95.0
 
July 25, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 28.1 μg/m3 (85) 85.0
 
July 25, 2021, noon N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 39.0 μg/m3 (110) 110.0
 
July 25, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A 38.3 μg/m3 (108) 108.0
 
July 25, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A 40.1 μg/m3 (113) 113.0
 
July 25, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A 39.9 μg/m3 (112) 112.0
 
July 25, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A N/A 37.7 μg/m3 (107) 107.0
 
July 25, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A N/A 37.8 μg/m3 (107) 107.0
 
July 25, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A N/A 38.5 μg/m3 (109) 109.0
 
July 25, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A N/A 37.1 μg/m3 (105) 105.0
 
July 25, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A N/A 38.1 μg/m3 (108) 108.0
 
July 25, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A N/A 37.0 μg/m3 (105) 105.0
 
July 25, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A N/A 37.2 μg/m3 (106) 106.0
 
July 25, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (94) N/A N/A 33.3 μg/m3 (96) 96.0
 
July 25, 2021, midnight N/A N/A N/A N/A N/A N/A 69.0 ppb (97) N/A N/A 29.1 μg/m3 (87) 97.0
 
July 24, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 66.0 ppb (87) N/A N/A 30.3 μg/m3 (90) 90.0
 
July 24, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (81) N/A N/A 31.3 μg/m3 (92) 92.0
 
July 24, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (81) N/A N/A 31.1 μg/m3 (91) 91.0
 
July 24, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A N/A 39.6 μg/m3 (112) 112.0
 
July 24, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A N/A 43.0 μg/m3 (120) 120.0
 
July 24, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A N/A 48.4 μg/m3 (133) 133.0
 
July 24, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A 53.0 μg/m3 (145) 145.0
 
July 24, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A N/A 35.3 μg/m3 (100) 100.0
 
July 24, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 21.4 μg/m3 (71) 71.0
 
July 24, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 10.8 μg/m3 (46) 46.0
 
July 24, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 8.9 μg/m3 (38) 38.0
 
July 24, 2021, noon N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 9.9 μg/m3 (42) 43.0
 
July 24, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 7.3 μg/m3 (31) 43.0
 
July 24, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 9.9 μg/m3 (42) 44.0
 
July 24, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 7.5 μg/m3 (32) 40.0
 
July 24, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A 8.7 μg/m3 (37) 48.0
 
July 24, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A 7.8 μg/m3 (33) 55.0
 
July 24, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A N/A 9.4 μg/m3 (40) 51.0
 
July 24, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A 12.9 μg/m3 (53) 55.0
 
July 24, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A N/A 8.1 μg/m3 (34) 51.0
 
July 24, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A 6.2 μg/m3 (26) 55.0
 
July 24, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A 10.4 μg/m3 (44) 55.0
 
July 24, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A N/A 12.0 μg/m3 (50) 61.0
 
July 24, 2021, midnight N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A N/A 13.2 μg/m3 (54) 74.0
 
July 23, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (91) N/A N/A 14.3 μg/m3 (56) 91.0
 
July 23, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 66.0 ppb (87) N/A N/A 10.2 μg/m3 (43) 87.0
 
July 23, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (81) N/A N/A 12.3 μg/m3 (52) 81.0
 
July 23, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A N/A 11.4 μg/m3 (48) 65.0
 
July 23, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A 12.0 μg/m3 (50) 58.0
 
July 23, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A N/A 13.5 μg/m3 (54) 54.0
 
July 23, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 12.7 μg/m3 (53) 53.0
 
July 23, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 12.9 μg/m3 (53) 53.0
 
July 23, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 12.2 μg/m3 (52) 52.0
 
July 23, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 14.4 μg/m3 (56) 56.0
 
July 23, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 13.3 μg/m3 (54) 54.0
 
July 23, 2021, noon N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 15.8 μg/m3 (59) 59.0
 
July 23, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 18.1 μg/m3 (64) 64.0
 
July 23, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 17.3 μg/m3 (62) 62.0
 
July 23, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 14.5 μg/m3 (57) 57.0
 
July 23, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 10.9 μg/m3 (46) 46.0
 
July 23, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 11.7 μg/m3 (49) 49.0
 
July 23, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A 16.5 μg/m3 (61) 61.0
 
July 23, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 16.8 μg/m3 (61) 61.0
 
July 23, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 18.1 μg/m3 (64) 64.0
 
July 23, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 14.0 μg/m3 (55) 55.0
 
July 23, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A N/A 12.0 μg/m3 (50) 51.0
 
July 23, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A N/A 12.9 μg/m3 (53) 65.0
 
July 23, 2021, midnight N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A N/A 8.3 μg/m3 (35) 71.0
 
July 22, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A N/A 10.2 μg/m3 (43) 51.0
 
July 22, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A N/A 10.5 μg/m3 (44) 61.0
 
July 22, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A N/A 20.4 μg/m3 (69) 69.0
 
July 22, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 66.0 ppb (87) N/A N/A 19.6 μg/m3 (67) 87.0
 
July 22, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 66.0 ppb (87) N/A N/A 23.9 μg/m3 (76) 87.0
 
July 22, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (81) N/A N/A 25.2 μg/m3 (79) 81.0
 
July 22, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A N/A 22.3 μg/m3 (73) 74.0
 
July 22, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A N/A 20.5 μg/m3 (69) 69.0
 
July 22, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A N/A 22.4 μg/m3 (73) 73.0
 
July 22, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 17.1 μg/m3 (62) 62.0
 
July 22, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 15.7 μg/m3 (59) 59.0
 
July 22, 2021, noon N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 16.8 μg/m3 (61) 61.0
 
July 22, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A N/A 19.6 μg/m3 (67) 67.0
 
July 22, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A N/A 18.2 μg/m3 (64) 64.0
 
July 22, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A N/A 16.4 μg/m3 (61) 61.0
 
July 22, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 20.4 μg/m3 (69) 69.0
 
July 22, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 14.2 μg/m3 (56) 56.0
 
July 22, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 13.3 μg/m3 (54) 54.0
 
July 22, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A N/A 17.4 μg/m3 (63) 63.0
 
July 22, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A N/A 20.1 μg/m3 (68) 68.0
 
July 22, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A 19.2 μg/m3 (66) 66.0
 
July 22, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A 20.5 μg/m3 (69) 69.0
 
July 22, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A N/A 19.4 μg/m3 (67) 67.0
 
July 22, 2021, midnight N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A N/A 16.1 μg/m3 (60) 68.0
 
July 21, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A N/A 18.3 μg/m3 (65) 68.0
 
July 21, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A N/A 19.1 μg/m3 (66) 71.0
 
July 21, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A N/A 20.1 μg/m3 (68) 71.0
 
July 21, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A N/A 21.0 μg/m3 (70) 74.0
 
July 21, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A N/A 13.6 μg/m3 (55) 74.0
 
July 21, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A N/A 14.5 μg/m3 (57) 68.0
 
July 21, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A N/A 17.3 μg/m3 (62) 62.0
 
July 21, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A 19.3 μg/m3 (67) 67.0
 
July 21, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A 13.7 μg/m3 (55) 55.0
 
July 21, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 11.4 μg/m3 (48) 48.0
 
July 21, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 11.8 μg/m3 (50) 50.0
 
July 21, 2021, noon N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 10.7 μg/m3 (45) 45.0
 
July 21, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 10.9 μg/m3 (46) 46.0
 
July 21, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 8.0 μg/m3 (34) 38.0
 
July 21, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 8.4 μg/m3 (36) 42.0
 
July 21, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 8.5 μg/m3 (36) 42.0
 
July 21, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A 8.0 μg/m3 (34) 45.0
 
July 21, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A N/A 6.3 μg/m3 (27) 47.0
 
July 21, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A N/A 9.5 μg/m3 (40) 49.0
 
July 21, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A N/A 12.5 μg/m3 (52) 52.0
 
July 21, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A 11.8 μg/m3 (50) 50.0
 
July 21, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A 13.1 μg/m3 (54) 55.0
 
July 21, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A N/A 12.3 μg/m3 (52) 65.0
 
July 21, 2021, midnight N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A N/A 10.6 μg/m3 (45) 71.0
 
July 20, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A N/A 8.7 μg/m3 (37) 71.0
 
July 20, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (81) N/A N/A 10.4 μg/m3 (44) 81.0
 
July 20, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (81) N/A N/A 14.0 μg/m3 (55) 81.0
 
July 20, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A N/A 17.9 μg/m3 (64) 74.0
 
July 20, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (84) N/A N/A 15.0 μg/m3 (58) 84.0
 
July 20, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 69.0 ppb (97) N/A N/A 19.6 μg/m3 (67) 97.0
 
July 20, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 72.0 ppb (102) N/A N/A 14.3 μg/m3 (56) 102.0
 
July 20, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (84) N/A N/A 9.9 μg/m3 (42) 84.0
 
July 20, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A N/A 11.7 μg/m3 (49) 49.0
 
July 20, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 11.6 μg/m3 (49) 49.0
 
July 20, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 7.5 μg/m3 (32) 32.0
 
July 20, 2021, noon N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 7.0 μg/m3 (30) 32.0
 
July 20, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 6.0 μg/m3 (25) 33.0
 
July 20, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 7.6 μg/m3 (32) 38.0
 
July 20, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 7.3 μg/m3 (31) 38.0
 
July 20, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 10.6 μg/m3 (45) 45.0
 
July 20, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A 8.9 μg/m3 (38) 45.0
 
July 20, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A 12.3 μg/m3 (52) 52.0
 
July 20, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A N/A 14.4 μg/m3 (56) 56.0
 
July 20, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A N/A 17.3 μg/m3 (62) 62.0
 
July 20, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A N/A 23.0 μg/m3 (74) 74.0
 
July 20, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (84) N/A N/A 20.7 μg/m3 (70) 84.0
 
July 20, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 70.0 ppb (100) N/A N/A 21.6 μg/m3 (71) 100.0
 
July 20, 2021, midnight N/A N/A N/A N/A N/A N/A 72.0 ppb (102) N/A N/A 31.0 μg/m3 (91) 102.0
 
July 19, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 73.0 ppb (103) N/A N/A 25.6 μg/m3 (80) 103.0
 
July 19, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 73.0 ppb (103) N/A N/A 30.1 μg/m3 (89) 103.0
 
July 19, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 73.0 ppb (103) N/A N/A 27.0 μg/m3 (83) 103.0
 
July 19, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 72.0 ppb (102) N/A N/A 26.9 μg/m3 (83) 102.0
 
July 19, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 71.0 ppb (101) N/A N/A 18.0 μg/m3 (64) 101.0
 
July 19, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 69.0 ppb (97) N/A N/A 14.0 μg/m3 (55) 97.0
 
July 19, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (81) N/A N/A 10.7 μg/m3 (45) 81.0
 
July 19, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
July 19, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
July 19, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
July 19, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A N/A 41.0
 
July 19, 2021, noon N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A N/A 40.0
 
July 19, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A N/A 42.0
 
July 19, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A N/A 42.0
 
July 19, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A N/A 43.0
 
July 19, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A N/A 44.0
 
July 19, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A N/A 45.0
 
July 19, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A N/A 44.0
 
July 19, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A N/A 48.0
 
July 19, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A N/A N/A 47.0
 
July 19, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A N/A 48.0
 
July 19, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A N/A N/A 51.0
 
July 19, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A N/A N/A 61.0
 
July 19, 2021, midnight N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A N/A N/A 74.0
 
July 18, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 66.0 ppb (87) N/A N/A N/A 87.0
 
July 18, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 69.0 ppb (97) N/A N/A N/A 97.0
 
July 18, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 69.0 ppb (97) N/A N/A N/A 97.0
 
July 18, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (94) N/A N/A N/A 94.0