ID: 1805

AQSQID: 000091901

Site Name: Caroline

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

Updated: Sept. 17, 2021, 7:01 p.m.

Location: Clearwater Co (Range Rd 60), CC

Reporting: True, Located: True

Current AQI: 18.0

Clearwater Co (Range Rd 60) CC, CA: 51.95, -114.7

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 10, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 0.4 μg/m3 (2) 24.0
 
Sept. 10, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 0.3 μg/m3 (2) 28.0
 
Sept. 10, 2021, noon N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 0.2 μg/m3 (1) 25.0
 
Sept. 10, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 0.3 μg/m3 (2) 20.0
 
Sept. 10, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 0.4 μg/m3 (2) 21.0
 
Sept. 10, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.2 μg/m3 (1) 1.0
 
Sept. 10, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 0.2 μg/m3 (1) 26.0
 
Sept. 10, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 0.0 μg/m3 (0) 26.0
 
Sept. 10, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 0.4 μg/m3 (2) 26.0
 
Sept. 10, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 1.3 μg/m3 (6) 27.0
 
Sept. 10, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 1.5 μg/m3 (7) 30.0
 
Sept. 10, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 2.2 μg/m3 (10) 34.0
 
Sept. 10, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 2.7 μg/m3 (12) 35.0
 
Sept. 10, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 4.5 μg/m3 (19) 36.0
 
Sept. 10, 2021, midnight N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 5.6 μg/m3 (24) 37.0
 
Sept. 9, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 5.2 μg/m3 (22) 38.0
 
Sept. 9, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 6.0 μg/m3 (25) 38.0
 
Sept. 9, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 8.5 μg/m3 (36) 39.0
 
Sept. 9, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 8.4 μg/m3 (36) 38.0
 
Sept. 9, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 2.6 μg/m3 (11) 38.0
 
Sept. 9, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 4.3 μg/m3 (18) 38.0
 
Sept. 9, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 10.4 μg/m3 (44) 44.0
 
Sept. 9, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 13.9 μg/m3 (55) 55.0
 
Sept. 9, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 18.1 μg/m3 (64) 64.0
 
Sept. 9, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A 21.9 μg/m3 (72) 72.0
 
Sept. 9, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A 25.8 μg/m3 (80) 80.0
 
Sept. 9, 2021, noon N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 28.1 μg/m3 (85) 85.0
 
Sept. 9, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 32.9 μg/m3 (95) 95.0
 
Sept. 9, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A 37.0 μg/m3 (105) 105.0
 
Sept. 9, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 41.6 μg/m3 (117) 117.0
 
Sept. 9, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A 45.4 μg/m3 (126) 126.0
 
Sept. 9, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A 44.5 μg/m3 (124) 124.0
 
Sept. 9, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A 53.0 μg/m3 (145) 145.0
 
Sept. 9, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A 85.8 μg/m3 (167) 167.0
 
Sept. 9, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A 68.6 μg/m3 (158) 158.0
 
Sept. 9, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 61.8 μg/m3 (155) 155.0
 
Sept. 9, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 58.5 μg/m3 (153) 153.0
 
Sept. 9, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 57.6 μg/m3 (153) 153.0
 
Sept. 9, 2021, midnight N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 54.0 μg/m3 (147) 147.0
 
Sept. 8, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 23.5 μg/m3 (75) 75.0
 
Sept. 8, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 15.2 μg/m3 (58) 58.0
 
Sept. 8, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (55) 55.0
 
Sept. 8, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.4 μg/m3 (48) 48.0
 
Sept. 8, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 10.9 μg/m3 (46) 46.0
 
Sept. 8, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A N/A 25.0
 
Sept. 8, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A N/A 23.0
 
Sept. 8, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 11.7 μg/m3 (49) 49.0
 
Sept. 8, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 11.5 μg/m3 (48) 48.0
 
Sept. 8, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A 13.3 μg/m3 (54) 54.0
 
Sept. 8, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 12.3 μg/m3 (52) 52.0
 
Sept. 8, 2021, noon N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 11.5 μg/m3 (48) 48.0
 
Sept. 8, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A 11.3 μg/m3 (48) 48.0
 
Sept. 8, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 12.8 μg/m3 (53) 53.0
 
Sept. 8, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.7 μg/m3 (49) 49.0
 
Sept. 8, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 13.4 μg/m3 (54) 54.0
 
Sept. 8, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 16.6 μg/m3 (61) 61.0
 
Sept. 8, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 13.4 μg/m3 (54) 54.0
 
Sept. 8, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 13.8 μg/m3 (55) 55.0
 
Sept. 8, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 8.3 μg/m3 (35) 35.0
 
Sept. 8, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 2.6 μg/m3 (11) 33.0
 
Sept. 8, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 2.4 μg/m3 (10) 38.0
 
Sept. 8, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 2.5 μg/m3 (11) 42.0
 
Sept. 8, 2021, midnight N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 1.5 μg/m3 (7) 44.0
 
Sept. 7, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A 1.3 μg/m3 (6) 45.0
 
Sept. 7, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A 1.8 μg/m3 (8) 45.0
 
Sept. 7, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 1.5 μg/m3 (7) 42.0
 
Sept. 7, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 1.6 μg/m3 (7) 40.0
 
Sept. 7, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 1.6 μg/m3 (7) 39.0
 
Sept. 7, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A N/A 38.0
 
Sept. 7, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 36.0
 
Sept. 7, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A N/A 25.0
 
Sept. 7, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A N/A 20.0
 
Sept. 7, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A N/A 17.0
 
Sept. 7, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A N/A 16.0
 
Sept. 7, 2021, noon N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A N/A 18.0
 
Sept. 7, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A N/A 18.0
 
Sept. 7, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A N/A 19.0
 
Sept. 7, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A N/A 26.0
 
Sept. 7, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A N/A 32.0
 
Sept. 7, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A N/A 28.0
 
Sept. 7, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A N/A 31.0
 
Sept. 7, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A N/A 38.0
 
Sept. 7, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A N/A 39.0
 
Sept. 7, 2021, 2 a.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
 
Sept. 7, 2021, 1 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
 
Sept. 7, 2021, midnight N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A N/A 44.0
 
Sept. 6, 2021, 11 p.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
 
Sept. 6, 2021, 10 p.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
 
Sept. 6, 2021, 9 p.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
 
Sept. 6, 2021, 8 p.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
 
Sept. 6, 2021, 7 p.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
 
Sept. 6, 2021, 6 p.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
 
Sept. 6, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A N/A 38.0
 
Sept. 6, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
Sept. 6, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 36.0
 
Sept. 6, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
Sept. 6, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A N/A 31.0
 
Sept. 6, 2021, noon N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A N/A 23.0
 
Sept. 6, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A N/A 24.0
 
Sept. 6, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 7.8 μg/m3 (33) 33.0
 
Sept. 6, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (30) 30.0
 
Sept. 6, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 7.6 μg/m3 (32) 35.0
 
Sept. 6, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 7.8 μg/m3 (33) 33.0
 
Sept. 6, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 5.4 μg/m3 (23) 38.0
 
Sept. 6, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 5.3 μg/m3 (23) 38.0
 
Sept. 6, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 5.5 μg/m3 (23) 40.0
 
Sept. 6, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 5.2 μg/m3 (22) 42.0
 
Sept. 6, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 5.3 μg/m3 (23) 42.0
 
Sept. 6, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 5.2 μg/m3 (22) 44.0
 
Sept. 6, 2021, midnight N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 5.8 μg/m3 (25) 44.0
 
Sept. 5, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 8.1 μg/m3 (34) 42.0
 
Sept. 5, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 9.7 μg/m3 (41) 41.0
 
Sept. 5, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 9.9 μg/m3 (42) 42.0
 
Sept. 5, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 9.4 μg/m3 (40) 41.0
 
Sept. 5, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 9.4 μg/m3 (40) 41.0
 
Sept. 5, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 8.5 μg/m3 (36) 41.0
 
Sept. 5, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 9.3 μg/m3 (39) 39.0
 
Sept. 5, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 11.5 μg/m3 (48) 48.0
 
Sept. 5, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 11.3 μg/m3 (48) 48.0
 
Sept. 5, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 11.9 μg/m3 (50) 50.0
 
Sept. 5, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 13.2 μg/m3 (54) 54.0
 
Sept. 5, 2021, noon N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A 12.0 μg/m3 (50) 50.0
 
Sept. 5, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 13.1 μg/m3 (54) 54.0
 
Sept. 5, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 11.3 μg/m3 (48) 48.0
 
Sept. 5, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.1 μg/m3 (43) 43.0
 
Sept. 5, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 9.7 μg/m3 (41) 41.0
 
Sept. 5, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 9.4 μg/m3 (40) 40.0
 
Sept. 5, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 9.8 μg/m3 (41) 41.0
 
Sept. 5, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 9.9 μg/m3 (42) 42.0
 
Sept. 5, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 9.2 μg/m3 (39) 39.0
 
Sept. 5, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 8.2 μg/m3 (35) 35.0
 
Sept. 5, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 8.0 μg/m3 (34) 34.0
 
Sept. 5, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 5.0 μg/m3 (21) 38.0
 
Sept. 5, 2021, midnight N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 4.4 μg/m3 (19) 39.0
 
Sept. 4, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 4.3 μg/m3 (18) 41.0
 
Sept. 4, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 4.4 μg/m3 (19) 44.0
 
Sept. 4, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 4.0 μg/m3 (17) 40.0
 
Sept. 4, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 3.2 μg/m3 (14) 40.0
 
Sept. 4, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 2.4 μg/m3 (10) 39.0
 
Sept. 4, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 1.8 μg/m3 (8) 37.0
 
Sept. 4, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 1.9 μg/m3 (8) 26.0
 
Sept. 4, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 1.9 μg/m3 (8) 21.0
 
Sept. 4, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A 2.5 μg/m3 (11) 15.0
 
Sept. 4, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A N/A 3.2 μg/m3 (14) 14.0
 
Sept. 4, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A N/A 3.8 μg/m3 (16) 16.0
 
Sept. 4, 2021, noon N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A 4.6 μg/m3 (20) 20.0
 
Sept. 4, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A N/A 5.1 μg/m3 (22) 22.0
 
Sept. 4, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A N/A 5.5 μg/m3 (23) 23.0
 
Sept. 4, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.9 μg/m3 (25) 25.0
 
Sept. 4, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 5.7 μg/m3 (24) 24.0
 
Sept. 4, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 5.9 μg/m3 (25) 25.0
 
Sept. 4, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 6.1 μg/m3 (26) 26.0
 
Sept. 4, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 5.3 μg/m3 (23) 26.0
 
Sept. 4, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 4.5 μg/m3 (19) 34.0
 
Sept. 4, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 4.8 μg/m3 (20) 37.0
 
Sept. 4, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 5.0 μg/m3 (21) 37.0
 
Sept. 4, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 4.3 μg/m3 (18) 38.0
 
Sept. 4, 2021, midnight N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 3.5 μg/m3 (15) 41.0
 
Sept. 3, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 3.3 μg/m3 (14) 41.0
 
Sept. 3, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 3.2 μg/m3 (14) 42.0
 
Sept. 3, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 2.8 μg/m3 (12) 42.0
 
Sept. 3, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 2.7 μg/m3 (12) 40.0
 
Sept. 3, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 2.8 μg/m3 (12) 38.0
 
Sept. 3, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 2.7 μg/m3 (12) 37.0
 
Sept. 3, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 2.4 μg/m3 (10) 31.0
 
Sept. 3, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 1.7 μg/m3 (8) 20.0
 
Sept. 3, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 1.7 μg/m3 (8) 18.0
 
Sept. 3, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A 1.7 μg/m3 (8) 13.0