ID: 2421

AQSQID: 300750001

Site Name: Broadus

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

Updated: Aug. 3, 2021, 11:56 p.m.

Location: Broadus (Big Powder Riv E Rd), MT

Reporting: True, Located: True

Current AQI: 153.0

Broadus (Big Powder Riv E Rd) MT, US: 45.440295, -105.37028

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Aug. 3, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A 151.0 μg/m3 (99) 58.6 μg/m3 (153) 153.0
 
Aug. 3, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A 147.0 μg/m3 (97) 56.0 μg/m3 (152) 152.0
 
Aug. 3, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A 125.0 μg/m3 (86) 48.2 μg/m3 (133) 133.0
 
Aug. 3, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A 103.0 μg/m3 (75) 36.4 μg/m3 (104) 104.0
 
Aug. 3, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A 63.0 μg/m3 (55) 26.6 μg/m3 (82) 82.0
 
Aug. 3, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 101.0 μg/m3 (74) 40.6 μg/m3 (114) 114.0
 
Aug. 3, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 150.0 μg/m3 (99) 43.8 μg/m3 (122) 122.0
 
Aug. 3, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 207.0 μg/m3 (127) 59.4 μg/m3 (154) 154.0
 
Aug. 3, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 141.0 μg/m3 (94) 47.5 μg/m3 (131) 131.0
 
Aug. 3, 2021, noon N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 70.0 μg/m3 (59) 25.1 μg/m3 (79) 79.0
 
Aug. 3, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 30.0 μg/m3 (28) 12.8 μg/m3 (53) 53.0
 
Aug. 3, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 30.0 μg/m3 (28) 17.1 μg/m3 (62) 62.0
 
Aug. 3, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 31.0 μg/m3 (29) 19.9 μg/m3 (68) 68.0
 
Aug. 3, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 33.0 μg/m3 (31) 19.5 μg/m3 (67) 67.0
 
Aug. 3, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 48.0 μg/m3 (45) 27.9 μg/m3 (85) 85.0
 
Aug. 3, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 35.0 μg/m3 (33) 15.6 μg/m3 (59) 59.0
 
Aug. 3, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 26.0 μg/m3 (25) 16.5 μg/m3 (61) 61.0
 
Aug. 3, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 28.0 μg/m3 (26) 12.8 μg/m3 (53) 53.0
 
Aug. 3, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 34.0 μg/m3 (32) 14.5 μg/m3 (57) 57.0
 
Aug. 3, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A 54.0 μg/m3 (50) 16.8 μg/m3 (61) 61.0
 
Aug. 3, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (78) N/A 107.0 μg/m3 (77) 37.6 μg/m3 (107) 107.0
 
Aug. 3, 2021, midnight N/A N/A N/A N/A N/A N/A 69.0 ppb (97) N/A 155.0 μg/m3 (101) 48.5 μg/m3 (134) 134.0
 
Aug. 2, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 69.0 ppb (97) N/A 86.0 μg/m3 (67) 37.6 μg/m3 (107) 107.0
 
Aug. 2, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 70.0 ppb (100) N/A 82.0 μg/m3 (65) 29.5 μg/m3 (88) 100.0
 
Aug. 2, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A 87.0 μg/m3 (67) 33.0 μg/m3 (95) 95.0
 
Aug. 2, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Aug. 2, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Aug. 2, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Aug. 2, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Aug. 2, 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
Aug. 2, 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
Aug. 2, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 169.0 μg/m3 (108) 51.4 μg/m3 (141) 141.0
 
Aug. 2, 2021, noon N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 160.0 μg/m3 (104) 47.8 μg/m3 (132) 132.0
 
Aug. 2, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 54.0 μg/m3 (50) 29.5 μg/m3 (88) 88.0
 
Aug. 2, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 34.0 μg/m3 (32) 25.8 μg/m3 (80) 80.0
 
Aug. 2, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 44.0 μg/m3 (41) 20.7 μg/m3 (70) 70.0
 
Aug. 2, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 50.0 μg/m3 (47) 24.3 μg/m3 (77) 77.0
 
Aug. 2, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 47.0 μg/m3 (44) 19.0 μg/m3 (66) 66.0
 
Aug. 2, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 36.0 μg/m3 (34) 19.1 μg/m3 (66) 66.0
 
Aug. 2, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 36.0 μg/m3 (34) 20.6 μg/m3 (69) 69.0
 
Aug. 2, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 36.0 μg/m3 (34) 16.1 μg/m3 (60) 60.0
 
Aug. 2, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 33.0 μg/m3 (31) 15.3 μg/m3 (58) 58.0
 
Aug. 2, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 39.0 μg/m3 (37) 17.6 μg/m3 (63) 63.0
 
Aug. 2, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A 71.0 μg/m3 (59) 29.2 μg/m3 (87) 87.0
 
Aug. 2, 2021, midnight N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A 77.0 μg/m3 (62) 32.8 μg/m3 (95) 95.0
 
Aug. 1, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A 57.0 μg/m3 (52) 30.3 μg/m3 (90) 90.0
 
Aug. 1, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A 52.0 μg/m3 (49) 30.6 μg/m3 (90) 90.0
 
Aug. 1, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A 61.0 μg/m3 (54) 29.8 μg/m3 (89) 89.0
 
Aug. 1, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A 44.0 μg/m3 (41) 29.9 μg/m3 (89) 89.0
 
Aug. 1, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A 34.0 μg/m3 (32) 22.9 μg/m3 (74) 74.0
 
Aug. 1, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A 29.0 μg/m3 (27) 21.6 μg/m3 (71) 71.0
 
Aug. 1, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A 32.0 μg/m3 (30) 15.4 μg/m3 (58) 58.0
 
Aug. 1, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 41.0 μg/m3 (38) 20.4 μg/m3 (69) 69.0
 
Aug. 1, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 69.0 μg/m3 (58) 31.1 μg/m3 (91) 91.0
 
Aug. 1, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 49.0 μg/m3 (46) 31.3 μg/m3 (92) 92.0
 
Aug. 1, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 34.0 μg/m3 (32) 22.2 μg/m3 (73) 73.0
 
Aug. 1, 2021, noon N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 33.0 μg/m3 (31) 18.5 μg/m3 (65) 65.0
 
Aug. 1, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 30.0 μg/m3 (28) 23.6 μg/m3 (76) 76.0
 
Aug. 1, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 32.0 μg/m3 (30) 22.4 μg/m3 (73) 73.0
 
Aug. 1, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 36.0 μg/m3 (34) 24.4 μg/m3 (77) 77.0
 
Aug. 1, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 29.0 μg/m3 (27) 25.1 μg/m3 (79) 79.0
 
Aug. 1, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 15.0 μg/m3 (14) 21.0 μg/m3 (70) 70.0
 
Aug. 1, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 35.0 μg/m3 (33) 21.2 μg/m3 (71) 71.0
 
Aug. 1, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 35.0 μg/m3 (33) 24.4 μg/m3 (77) 77.0
 
Aug. 1, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 36.0 μg/m3 (34) 22.8 μg/m3 (74) 74.0
 
Aug. 1, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 40.0 μg/m3 (38) 23.4 μg/m3 (75) 75.0
 
Aug. 1, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 65.0 μg/m3 (56) 34.9 μg/m3 (99) 99.0
 
Aug. 1, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 92.0 μg/m3 (70) 39.5 μg/m3 (111) 111.0
 
Aug. 1, 2021, midnight N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A 78.0 μg/m3 (63) 44.7 μg/m3 (124) 124.0
 
July 31, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A 69.0 μg/m3 (58) 47.6 μg/m3 (131) 131.0
 
July 31, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A 63.0 μg/m3 (55) 40.2 μg/m3 (113) 113.0
 
July 31, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A 51.0 μg/m3 (48) 27.7 μg/m3 (84) 84.0
 
July 31, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 52.0 μg/m3 (49) 23.8 μg/m3 (76) 76.0
 
July 31, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A 56.0 μg/m3 (52) 18.8 μg/m3 (66) 66.0
 
July 31, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A 65.0 μg/m3 (56) 20.2 μg/m3 (69) 69.0
 
July 31, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A 91.0 μg/m3 (69) 26.6 μg/m3 (82) 82.0
 
July 31, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 109.0 μg/m3 (78) 57.1 μg/m3 (152) 152.0
 
July 31, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 127.0 μg/m3 (87) 64.8 μg/m3 (156) 156.0
 
July 31, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 158.0 μg/m3 (103) 70.3 μg/m3 (159) 159.0
 
July 31, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A 144.0 μg/m3 (96) 74.4 μg/m3 (161) 161.0
 
July 31, 2021, noon N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 110.0 μg/m3 (79) 60.3 μg/m3 (154) 154.0
 
July 31, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 88.0 μg/m3 (68) 65.4 μg/m3 (157) 157.0
 
July 31, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 84.0 μg/m3 (66) 64.7 μg/m3 (156) 156.0
 
July 31, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 95.0 μg/m3 (71) 62.0 μg/m3 (155) 155.0
 
July 31, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 96.0 μg/m3 (72) 68.0 μg/m3 (158) 158.0
 
July 31, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 90.0 μg/m3 (69) 65.1 μg/m3 (156) 156.0
 
July 31, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 80.0 μg/m3 (64) 67.2 μg/m3 (158) 158.0
 
July 31, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 76.0 μg/m3 (62) 64.9 μg/m3 (156) 156.0
 
July 31, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A 63.0 μg/m3 (55) 43.1 μg/m3 (120) 120.0
 
July 31, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A 58.0 μg/m3 (53) 38.2 μg/m3 (108) 108.0
 
July 31, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A 83.0 μg/m3 (65) 39.1 μg/m3 (110) 110.0
 
July 31, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (84) N/A 107.0 μg/m3 (77) 37.6 μg/m3 (107) 107.0
 
July 31, 2021, midnight N/A N/A N/A N/A N/A N/A 64.0 ppb (81) N/A 99.0 μg/m3 (73) 31.0 μg/m3 (91) 91.0
 
July 30, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 66.0 ppb (87) N/A 48.0 μg/m3 (45) 23.3 μg/m3 (75) 87.0
 
July 30, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 66.0 ppb (87) N/A 53.0 μg/m3 (50) 23.3 μg/m3 (75) 87.0
 
July 30, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (91) N/A 73.0 μg/m3 (60) 34.7 μg/m3 (99) 99.0
 
July 30, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (91) N/A 88.0 μg/m3 (68) 27.5 μg/m3 (84) 91.0
 
July 30, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (91) N/A 53.0 μg/m3 (50) 30.5 μg/m3 (90) 91.0
 
July 30, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (84) N/A 73.0 μg/m3 (60) 35.8 μg/m3 (102) 102.0
 
July 30, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A 68.0 μg/m3 (58) 36.1 μg/m3 (103) 103.0
 
July 30, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A 58.0 μg/m3 (53) 50.5 μg/m3 (138) 138.0
 
July 30, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 59.0 μg/m3 (53) 51.0 μg/m3 (140) 140.0
 
July 30, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 63.0 μg/m3 (55) 43.9 μg/m3 (122) 122.0
 
July 30, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 53.0 μg/m3 (50) 41.4 μg/m3 (116) 116.0
 
July 30, 2021, noon N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 41.0 μg/m3 (38) 35.1 μg/m3 (100) 100.0
 
July 30, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 28.0 μg/m3 (26) 29.5 μg/m3 (88) 88.0
 
July 30, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 24.0 μg/m3 (23) 27.3 μg/m3 (83) 83.0
 
July 30, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 23.0 μg/m3 (22) 26.9 μg/m3 (83) 83.0
 
July 30, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 23.0 μg/m3 (22) 31.7 μg/m3 (93) 93.0
 
July 30, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 33.0 μg/m3 (31) 39.7 μg/m3 (112) 112.0
 
July 30, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 30.0 μg/m3 (28) 20.8 μg/m3 (70) 70.0
 
July 30, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 27.0 μg/m3 (25) 11.0 μg/m3 (46) 46.0
 
July 30, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 28.0 μg/m3 (26) 12.5 μg/m3 (52) 52.0
 
July 30, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 21.0 μg/m3 (20) 8.9 μg/m3 (38) 38.0
 
July 30, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 19.0 μg/m3 (18) 5.3 μg/m3 (23) 33.0
 
July 30, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 20.0 μg/m3 (19) 4.3 μg/m3 (18) 36.0
 
July 30, 2021, midnight N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 13.0 μg/m3 (13) -1.5 μg/m3 (0) 38.0
 
July 29, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 25.0 μg/m3 (24) N/A 43.0
 
July 29, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 43.0 μg/m3 (40) 12.3 μg/m3 (52) 52.0
 
July 29, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 28.0 μg/m3 (26) 4.1 μg/m3 (18) 46.0
 
July 29, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 22.0 μg/m3 (21) 5.5 μg/m3 (23) 44.0
 
July 29, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 24.0 μg/m3 (23) 18.4 μg/m3 (65) 65.0
 
July 29, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 33.0 μg/m3 (31) 16.1 μg/m3 (60) 60.0
 
July 29, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 40.0 μg/m3 (38) 26.6 μg/m3 (82) 82.0
 
July 29, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 36.0 μg/m3 (34) 26.5 μg/m3 (82) 82.0
 
July 29, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 33.0 μg/m3 (31) 39.4 μg/m3 (111) 111.0
 
July 29, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 38.0 μg/m3 (36) 33.3 μg/m3 (96) 96.0
 
July 29, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 38.0 μg/m3 (36) 27.6 μg/m3 (84) 84.0
 
July 29, 2021, noon N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 37.0 μg/m3 (35) 23.5 μg/m3 (75) 75.0
 
July 29, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 36.0 μg/m3 (34) 23.4 μg/m3 (75) 75.0
 
July 29, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 35.0 μg/m3 (33) 24.8 μg/m3 (78) 78.0
 
July 29, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 43.0 μg/m3 (40) 27.6 μg/m3 (84) 84.0
 
July 29, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 42.0 μg/m3 (39) 21.3 μg/m3 (71) 71.0
 
July 29, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 39.0 μg/m3 (37) 10.6 μg/m3 (45) 45.0
 
July 29, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 41.0 μg/m3 (38) 12.5 μg/m3 (52) 52.0
 
July 29, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 49.0 μg/m3 (46) 25.4 μg/m3 (79) 79.0
 
July 29, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 85.0 μg/m3 (66) 35.8 μg/m3 (102) 102.0
 
July 29, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 115.0 μg/m3 (81) 32.4 μg/m3 (94) 94.0
 
July 29, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 91.0 μg/m3 (69) 35.6 μg/m3 (102) 102.0
 
July 29, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A 88.0 μg/m3 (68) 46.1 μg/m3 (128) 128.0
 
July 29, 2021, midnight N/A N/A N/A N/A N/A N/A 63.0 ppb (78) N/A 100.0 μg/m3 (74) 42.2 μg/m3 (118) 118.0
 
July 28, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (84) N/A 127.0 μg/m3 (87) 49.9 μg/m3 (137) 137.0
 
July 28, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (78) N/A 141.0 μg/m3 (94) 55.9 μg/m3 (152) 152.0
 
July 28, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (81) N/A 159.0 μg/m3 (103) 54.4 μg/m3 (148) 148.0
 
July 28, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A 137.0 μg/m3 (92) 44.5 μg/m3 (124) 124.0
 
July 28, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A 125.0 μg/m3 (86) 45.8 μg/m3 (127) 127.0
 
July 28, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A 139.0 μg/m3 (93) 44.8 μg/m3 (124) 124.0
 
July 28, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A 149.0 μg/m3 (98) 49.8 μg/m3 (137) 137.0
 
July 28, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A 114.0 μg/m3 (81) 41.5 μg/m3 (116) 116.0
 
July 28, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A 129.0 μg/m3 (88) 38.4 μg/m3 (109) 109.0
 
July 28, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 145.0 μg/m3 (96) 36.0 μg/m3 (103) 103.0
 
July 28, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 147.0 μg/m3 (97) 55.4 μg/m3 (150) 150.0
 
July 28, 2021, noon N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 140.0 μg/m3 (94) 66.5 μg/m3 (157) 157.0
 
July 28, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 62.0 μg/m3 (55) 36.9 μg/m3 (105) 105.0
 
July 28, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 55.0 μg/m3 (51) 22.3 μg/m3 (73) 73.0
 
July 28, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 82.0 μg/m3 (65) 30.9 μg/m3 (91) 91.0
 
July 28, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 94.0 μg/m3 (71) 39.6 μg/m3 (112) 112.0
 
July 28, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 36.0 μg/m3 (34) 17.8 μg/m3 (63) 63.0
 
July 28, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 45.0 μg/m3 (42) 22.3 μg/m3 (73) 73.0
 
July 28, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A 52.0 μg/m3 (49) 31.1 μg/m3 (91) 91.0
 
July 28, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A 71.0 μg/m3 (59) 35.8 μg/m3 (102) 102.0
 
July 28, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (78) N/A 102.0 μg/m3 (75) 39.7 μg/m3 (112) 112.0
 
July 28, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (78) N/A 157.0 μg/m3 (102) 45.4 μg/m3 (126) 126.0
 
July 28, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (84) N/A 126.0 μg/m3 (87) 38.9 μg/m3 (110) 110.0
 
July 28, 2021, midnight N/A N/A N/A N/A N/A N/A 72.0 ppb (102) N/A 102.0 μg/m3 (75) 34.6 μg/m3 (99) 102.0
 
July 27, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 73.0 ppb (103) N/A 164.0 μg/m3 (106) 41.4 μg/m3 (116) 116.0
 
July 27, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 72.0 ppb (102) N/A 123.0 μg/m3 (85) 32.4 μg/m3 (94) 102.0
 
July 27, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 72.0 ppb (102) N/A 101.0 μg/m3 (74) 28.3 μg/m3 (86) 102.0