ID: 1118

AQSQID: 295100085

Site Name: Blair Street

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

Updated: Dec. 5, 2020, 2:42 p.m.

Location: Saint Louis (Hyde Park), MO

Reporting: True, Located: True

Current AQI: 56.0

Saint Louis (Hyde Park) MO, US: 38.656449, -90.198548

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Dec. 5, 2020, 1 p.m. 54.4 ppb (52) 33.4 ppb (32) 57.9 ppb (56) 21.0 ppb (20) N/A 0.0 ppb (0) 2.0 ppb (2) 0.55 ppb (7) N/A 13.8 μg/m3 (55) 56.0
 
Dec. 5, 2020, noon 42.8 ppb (41) 20.9 ppb (20) 43.2 ppb (41) 22.0 ppb (21) N/A 0.0 ppb (0) 1.0 ppb (1) 0.43 ppb (5) N/A 13.2 μg/m3 (54) 54.0
 
Dec. 5, 2020, 11 a.m. 30.0 ppb (29) 7.2 ppb (7) 31.4 ppb (30) 23.0 ppb (22) N/A 0.0 ppb (0) 1.0 ppb (1) 0.39 ppb (5) N/A 12.2 μg/m3 (52) 52.0
 
Dec. 5, 2020, 10 a.m. 25.1 ppb (24) 2.2 ppb (3) 24.6 ppb (24) 23.0 ppb (22) N/A 0.0 ppb (0) 2.0 ppb (2) 0.32 ppb (4) N/A 11.3 μg/m3 (48) 48.0
 
Dec. 5, 2020, 9 a.m. 23.7 ppb (23) 1.7 ppb (2) 21.9 ppb (21) 22.0 ppb (21) N/A 0.0 ppb (0) 5.0 ppb (5) 0.3 ppb (4) N/A 12.1 μg/m3 (51) 51.0
 
Dec. 5, 2020, 8 a.m. 20.9 ppb (20) 1.0 ppb (1) 18.7 ppb (18) 20.0 ppb (19) N/A 0.0 ppb (0) 7.0 ppb (7) 0.33 ppb (4) N/A 10.1 μg/m3 (43) 43.0
 
Dec. 5, 2020, 7 a.m. 22.7 ppb (22) 1.6 ppb (2) 20.6 ppb (20) 21.0 ppb (20) N/A 1.0 ppb (2) 7.0 ppb (7) 0.3 ppb (4) N/A 11.6 μg/m3 (49) 49.0
 
Dec. 5, 2020, 6 a.m. 21.0 ppb (20) 1.7 ppb (2) 18.4 ppb (18) 19.0 ppb (18) N/A 0.0 ppb (0) 8.0 ppb (8) 0.32 ppb (4) N/A 13.5 μg/m3 (54) 54.0
 
Dec. 5, 2020, 5 a.m. 17.7 ppb (17) 1.5 ppb (2) 15.6 ppb (15) 16.0 ppb (16) N/A 0.0 ppb (0) 12.0 ppb (12) 0.3 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Dec. 5, 2020, 4 a.m. 17.9 ppb (17) 1.2 ppb (2) 16.3 ppb (16) 17.0 ppb (17) N/A 0.0 ppb (0) 12.0 ppb (12) 0.31 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Dec. 5, 2020, 3 a.m. 16.8 ppb (16) 0.9 ppb (1) 15.7 ppb (15) 16.0 ppb (16) N/A 0.0 ppb (0) 14.0 ppb (13) 0.34 ppb (4) N/A 16.8 μg/m3 (61) 61.0
 
Dec. 5, 2020, 2 a.m. 19.8 ppb (19) 1.1 ppb (2) 17.7 ppb (17) 19.0 ppb (18) N/A 0.0 ppb (0) 12.0 ppb (12) 0.37 ppb (5) N/A 10.6 μg/m3 (45) 45.0
 
Dec. 5, 2020, 1 a.m. 19.0 ppb (18) 1.1 ppb (2) 17.0 ppb (17) 18.0 ppb (17) N/A 1.0 ppb (2) 13.0 ppb (13) 0.3 ppb (4) N/A 9.5 μg/m3 (40) 40.0
 
Dec. 5, 2020, midnight 13.2 ppb (13) 0.5 ppb (1) 12.1 ppb (12) 13.0 ppb (13) N/A 0.0 ppb (0) 18.0 ppb (17) 0.28 ppb (4) N/A 6.8 μg/m3 (29) 29.0
 
Dec. 4, 2020, 11 p.m. 11.3 ppb (11) 0.4 ppb (1) 10.6 ppb (10) 11.0 ppb (11) N/A 0.0 ppb (0) 20.0 ppb (19) 0.23 ppb (3) N/A 6.3 μg/m3 (27) 27.0
 
Dec. 4, 2020, 10 p.m. 5.9 ppb (6) 0.7 ppb (1) 5.5 ppb (6) 5.0 ppb (5) N/A 0.0 ppb (0) 26.0 ppb (25) 0.18 ppb (3) N/A 5.1 μg/m3 (22) 25.0
 
Dec. 4, 2020, 9 p.m. 5.1 ppb (5) 1.2 ppb (2) 6.2 ppb (6) 4.0 ppb (4) N/A 1.0 ppb (2) 27.0 ppb (25) 0.2 ppb (3) N/A 5.2 μg/m3 (22) 25.0
 
Dec. 4, 2020, 8 p.m. 3.9 ppb (4) 0.9 ppb (1) 5.1 ppb (5) 3.0 ppb (3) N/A 2.0 ppb (3) 28.0 ppb (26) 0.17 ppb (3) N/A 6.5 μg/m3 (28) 28.0
 
Dec. 4, 2020, 7 p.m. 5.0 ppb (5) 1.9 ppb (2) 6.7 ppb (7) 3.0 ppb (3) N/A 3.0 ppb (5) 27.0 ppb (25) 0.18 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Dec. 4, 2020, 6 p.m. 7.9 ppb (8) 2.4 ppb (3) 6.7 ppb (7) 6.0 ppb (6) N/A 1.0 ppb (2) 26.0 ppb (25) 0.17 ppb (3) N/A 4.6 μg/m3 (20) 25.0
 
Dec. 4, 2020, 5 p.m. 5.4 ppb (6) 1.6 ppb (2) 6.7 ppb (7) 4.0 ppb (4) N/A 0.0 ppb (0) 26.0 ppb (25) 0.19 ppb (3) N/A 11.6 μg/m3 (49) 49.0
 
Dec. 4, 2020, 4 p.m. 7.6 ppb (8) 2.6 ppb (3) 8.1 ppb (8) 5.0 ppb (5) N/A 3.0 ppb (5) 26.0 ppb (25) 0.23 ppb (3) N/A 7.5 μg/m3 (32) 32.0
 
Dec. 4, 2020, 3 p.m. 9.1 ppb (9) 2.7 ppb (3) 9.3 ppb (9) 6.0 ppb (6) N/A 5.0 ppb (8) 22.0 ppb (21) 0.24 ppb (3) N/A 9.4 μg/m3 (40) 40.0
 
Dec. 4, 2020, 2 p.m. 12.4 ppb (12) 2.7 ppb (3) 12.0 ppb (12) 10.0 ppb (10) N/A 1.0 ppb (2) 18.0 ppb (17) 0.25 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Dec. 4, 2020, 1 p.m. 14.5 ppb (14) 2.6 ppb (3) 11.2 ppb (11) 12.0 ppb (12) N/A 0.0 ppb (0) 18.0 ppb (17) 0.21 ppb (3) N/A 6.6 μg/m3 (28) 28.0
 
Dec. 4, 2020, noon 9.1 ppb (9) 1.0 ppb (1) 8.8 ppb (9) 8.0 ppb (8) N/A 0.0 ppb (0) 18.0 ppb (17) 0.19 ppb (3) N/A 9.9 μg/m3 (42) 42.0
 
Dec. 4, 2020, 11 a.m. 7.4 ppb (7) 0.8 ppb (1) 7.5 ppb (8) 7.0 ppb (7) N/A 0.0 ppb (0) 21.0 ppb (20) 0.18 ppb (3) N/A 7.5 μg/m3 (32) 32.0
 
Dec. 4, 2020, 10 a.m. 6.9 ppb (7) 0.2 ppb (1) 7.1 ppb (7) 7.0 ppb (7) N/A 0.0 ppb (0) 22.0 ppb (21) 0.19 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Dec. 4, 2020, 9 a.m. 11.2 ppb (11) 0.3 ppb (1) 11.3 ppb (11) 11.0 ppb (11) N/A 0.0 ppb (0) 18.0 ppb (17) 0.23 ppb (3) N/A 12.9 μg/m3 (53) 53.0
 
Dec. 4, 2020, 8 a.m. 26.8 ppb (26) 5.3 ppb (5) 23.5 ppb (23) 22.0 ppb (21) N/A 0.0 ppb (0) 5.0 ppb (5) 0.37 ppb (5) N/A 12.2 μg/m3 (52) 52.0
 
Dec. 4, 2020, 7 a.m. 20.6 ppb (20) 1.0 ppb (1) 20.7 ppb (20) 20.0 ppb (19) N/A 1.0 ppb (2) 7.0 ppb (7) 0.35 ppb (4) N/A 16.5 μg/m3 (61) 61.0
 
Dec. 4, 2020, 6 a.m. 26.8 ppb (26) 2.0 ppb (2) 25.2 ppb (24) 25.0 ppb (24) N/A 1.0 ppb (2) 5.0 ppb (5) 0.38 ppb (5) N/A 14.2 μg/m3 (56) 56.0
 
Dec. 4, 2020, 5 a.m. 70.9 ppb (70) 36.8 ppb (35) 66.2 ppb (64) 34.0 ppb (33) N/A 1.0 ppb (2) 1.0 ppb (1) 0.73 ppb (8) N/A 17.2 μg/m3 (62) 70.0
 
Dec. 4, 2020, 4 a.m. 95.5 ppb (96) 61.0 ppb (59) 93.2 ppb (93) 34.0 ppb (33) N/A 1.0 ppb (2) 1.0 ppb (1) 0.74 ppb (8) N/A 17.3 μg/m3 (62) 96.0
 
Dec. 4, 2020, 3 a.m. 93.6 ppb (94) 58.2 ppb (56) 87.1 ppb (87) 35.0 ppb (34) N/A 2.0 ppb (3) 1.0 ppb (1) 0.71 ppb (8) N/A 24.8 μg/m3 (78) 94.0
 
Dec. 4, 2020, 2 a.m. 95.0 ppb (95) 60.0 ppb (58) 98.7 ppb (99) 35.0 ppb (34) N/A 1.0 ppb (2) 1.0 ppb (1) 0.77 ppb (10) N/A 18.4 μg/m3 (65) 99.0
 
Dec. 4, 2020, 1 a.m. 86.0 ppb (86) 51.3 ppb (49) 85.9 ppb (85) 35.0 ppb (34) N/A 1.0 ppb (2) 1.0 ppb (1) 0.82 ppb (10) N/A 21.4 μg/m3 (71) 86.0
 
Dec. 4, 2020, midnight 69.3 ppb (68) 32.9 ppb (32) 72.6 ppb (71) 36.0 ppb (34) N/A 1.0 ppb (2) 2.0 ppb (2) 0.74 ppb (8) N/A 18.0 μg/m3 (64) 71.0
 
Dec. 3, 2020, 11 p.m. 46.9 ppb (45) 9.1 ppb (9) 44.8 ppb (43) 38.0 ppb (36) N/A 1.0 ppb (2) 2.0 ppb (2) 0.4 ppb (5) N/A 10.0 μg/m3 (42) 45.0
 
Dec. 3, 2020, 10 p.m. 35.9 ppb (34) 3.5 ppb (4) 33.3 ppb (32) 32.0 ppb (31) N/A 2.0 ppb (3) 9.0 ppb (9) 0.36 ppb (5) N/A 9.9 μg/m3 (42) 42.0
 
Dec. 3, 2020, 9 p.m. 33.1 ppb (32) 4.2 ppb (4) 31.2 ppb (30) 29.0 ppb (28) N/A 2.0 ppb (3) 14.0 ppb (13) 0.35 ppb (4) N/A 11.9 μg/m3 (50) 50.0
 
Dec. 3, 2020, 8 p.m. 28.7 ppb (28) 7.1 ppb (7) 28.1 ppb (27) 22.0 ppb (21) N/A 2.0 ppb (3) 15.0 ppb (14) 0.39 ppb (5) N/A 15.3 μg/m3 (58) 58.0
 
Dec. 3, 2020, 7 p.m. 38.8 ppb (37) 12.5 ppb (12) 37.9 ppb (36) 26.0 ppb (25) N/A 2.0 ppb (3) 7.0 ppb (7) 0.32 ppb (4) N/A 15.5 μg/m3 (59) 59.0
 
Dec. 3, 2020, 6 p.m. 23.4 ppb (23) 4.9 ppb (5) 22.6 ppb (22) 19.0 ppb (18) N/A 2.0 ppb (3) 12.0 ppb (12) 0.25 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Dec. 3, 2020, 5 p.m. 35.8 ppb (34) 16.0 ppb (16) 33.8 ppb (32) 20.0 ppb (19) N/A 2.0 ppb (3) 12.0 ppb (12) 0.29 ppb (4) N/A 25.8 μg/m3 (80) 80.0
 
Dec. 3, 2020, 4 p.m. 68.4 ppb (67) 42.6 ppb (41) 68.1 ppb (67) 26.0 ppb (25) N/A 2.0 ppb (3) 5.0 ppb (5) 0.42 ppb (5) N/A 25.0 μg/m3 (79) 79.0
 
Dec. 3, 2020, 3 p.m. 58.6 ppb (56) 31.4 ppb (30) 58.0 ppb (56) 27.0 ppb (26) N/A 1.0 ppb (2) 4.0 ppb (4) 0.4 ppb (5) N/A 11.1 μg/m3 (47) 56.0
 
Dec. 3, 2020, 2 p.m. 55.7 ppb (53) 28.0 ppb (27) 52.6 ppb (50) 28.0 ppb (27) N/A 1.0 ppb (2) 3.0 ppb (3) 0.5 ppb (6) N/A 23.2 μg/m3 (75) 75.0
 
Dec. 3, 2020, 1 p.m. 58.2 ppb (56) 30.4 ppb (29) 51.8 ppb (49) 28.0 ppb (27) N/A 1.0 ppb (2) 2.0 ppb (2) 0.42 ppb (5) N/A 18.6 μg/m3 (65) 65.0
 
Dec. 3, 2020, noon 105.8 ppb (102) 74.2 ppb (73) 107.6 ppb (103) 31.0 ppb (30) N/A 1.0 ppb (2) 1.0 ppb (1) 0.52 ppb (6) N/A 17.6 μg/m3 (63) 103.0
 
Dec. 3, 2020, 11 a.m. 81.0 ppb (80) 52.1 ppb (50) 79.2 ppb (78) 29.0 ppb (28) N/A 1.0 ppb (2) 1.0 ppb (1) 0.36 ppb (5) N/A 16.1 μg/m3 (60) 80.0
 
Dec. 3, 2020, 10 a.m. 48.9 ppb (47) 16.7 ppb (16) 46.8 ppb (45) 32.0 ppb (31) N/A 1.0 ppb (2) 1.0 ppb (1) 0.43 ppb (5) N/A 15.3 μg/m3 (58) 58.0
 
Dec. 3, 2020, 9 a.m. 75.8 ppb (75) 43.7 ppb (42) 71.9 ppb (71) 32.0 ppb (31) N/A 1.0 ppb (2) 1.0 ppb (1) 0.45 ppb (6) N/A 15.2 μg/m3 (58) 75.0
 
Dec. 3, 2020, 8 a.m. 52.9 ppb (50) 24.5 ppb (24) 53.3 ppb (51) 28.0 ppb (27) N/A 1.0 ppb (2) 1.0 ppb (1) 0.43 ppb (5) N/A 14.1 μg/m3 (56) 56.0
 
Dec. 3, 2020, 7 a.m. 54.8 ppb (52) 27.3 ppb (26) 49.2 ppb (47) 27.0 ppb (26) N/A 1.0 ppb (2) 1.0 ppb (1) 0.56 ppb (7) N/A 14.0 μg/m3 (55) 55.0
 
Dec. 3, 2020, 6 a.m. 74.6 ppb (73) 47.4 ppb (45) 60.6 ppb (59) 27.0 ppb (26) N/A 1.0 ppb (2) 1.0 ppb (1) 0.6 ppb (7) N/A 24.6 μg/m3 (78) 78.0
 
Dec. 3, 2020, 5 a.m. 114.4 ppb (104) 87.0 ppb (87) 100.5 ppb (101) 29.0 ppb (28) N/A 1.0 ppb (2) 2.0 ppb (2) 0.79 ppb (10) N/A 24.3 μg/m3 (77) 104.0
 
Dec. 3, 2020, 4 a.m. 117.9 ppb (105) 88.1 ppb (88) 121.9 ppb (105) 30.0 ppb (29) N/A 1.0 ppb (2) 2.0 ppb (2) 0.82 ppb (10) N/A 24.7 μg/m3 (78) 105.0
 
Dec. 3, 2020, 3 a.m. 102.9 ppb (102) 73.1 ppb (72) 100.3 ppb (101) 30.0 ppb (29) N/A 1.0 ppb (2) 1.0 ppb (1) 0.71 ppb (8) N/A 20.8 μg/m3 (70) 102.0
 
Dec. 3, 2020, 2 a.m. 76.6 ppb (76) 46.4 ppb (44) 84.8 ppb (84) 30.0 ppb (29) N/A 1.0 ppb (2) 2.0 ppb (2) 0.63 ppb (7) N/A 20.7 μg/m3 (70) 84.0
 
Dec. 3, 2020, 1 a.m. 67.4 ppb (66) 34.5 ppb (33) 64.2 ppb (62) 33.0 ppb (32) N/A 1.0 ppb (2) 1.0 ppb (1) 0.42 ppb (5) N/A 12.8 μg/m3 (53) 66.0
 
Dec. 3, 2020, midnight 75.5 ppb (74) 40.4 ppb (39) 68.4 ppb (67) 35.0 ppb (34) N/A 1.0 ppb (2) 1.0 ppb (1) 0.44 ppb (5) N/A 14.8 μg/m3 (57) 74.0
 
Dec. 2, 2020, 11 p.m. 72.8 ppb (72) 35.7 ppb (34) 65.7 ppb (64) 37.0 ppb (35) N/A 1.0 ppb (2) 1.0 ppb (1) 0.48 ppb (6) N/A 17.9 μg/m3 (64) 72.0
 
Dec. 2, 2020, 10 p.m. 44.2 ppb (42) 15.1 ppb (15) 40.0 ppb (38) 29.0 ppb (28) N/A 1.0 ppb (2) 10.0 ppb (10) 0.4 ppb (5) N/A 12.4 μg/m3 (52) 52.0
 
Dec. 2, 2020, 9 p.m. 32.0 ppb (31) 10.4 ppb (10) 28.9 ppb (28) 22.0 ppb (21) N/A N/A 16.0 ppb (15) 0.31 ppb (4) N/A 10.8 μg/m3 (46) 46.0
 
Dec. 2, 2020, 8 p.m. N/A N/A 22.8 ppb (22) N/A N/A N/A 21.0 ppb (20) 0.25 ppb (3) N/A 14.8 μg/m3 (57) 57.0
 
Dec. 2, 2020, 7 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 20.0 ppb (19) N/A N/A 15.2 μg/m3 (58) 58.0
 
Dec. 2, 2020, 6 p.m. 18.4 ppb (18) 6.6 ppb (7) N/A 12.0 ppb (12) N/A 2.0 ppb (3) N/A N/A N/A 10.5 μg/m3 (44) 44.0
 
Dec. 2, 2020, 5 p.m. 28.7 ppb (28) 14.6 ppb (14) N/A 14.0 ppb (14) N/A 2.0 ppb (3) 16.0 ppb (15) N/A N/A 9.3 μg/m3 (39) 39.0
 
Dec. 2, 2020, 4 p.m. 44.9 ppb (43) 26.3 ppb (25) 46.1 ppb (44) 19.0 ppb (18) N/A 1.0 ppb (2) 11.0 ppb (11) 0.29 ppb (4) N/A 17.8 μg/m3 (63) 63.0
 
Dec. 2, 2020, 3 p.m. 99.3 ppb (100) 70.9 ppb (70) 98.2 ppb (99) 28.0 ppb (27) N/A 1.0 ppb (2) 5.0 ppb (5) 0.43 ppb (5) N/A 24.9 μg/m3 (78) 100.0
 
Dec. 2, 2020, 2 p.m. 165.5 ppb (114) 132.7 ppb (107) 163.5 ppb (113) 33.0 ppb (32) N/A 1.0 ppb (2) 2.0 ppb (2) 0.57 ppb (7) N/A 29.7 μg/m3 (89) 114.0
 
Dec. 2, 2020, 1 p.m. 199.3 ppb (120) 171.4 ppb (115) 206.8 ppb (122) 28.0 ppb (27) N/A 1.0 ppb (2) 1.0 ppb (1) 0.96 ppb (12) N/A 22.4 μg/m3 (73) 122.0
 
Dec. 2, 2020, noon 194.9 ppb (119) 164.9 ppb (114) 192.6 ppb (119) 30.0 ppb (29) N/A 1.0 ppb (2) 1.0 ppb (1) 0.98 ppb (12) N/A 19.8 μg/m3 (68) 119.0
 
Dec. 2, 2020, 11 a.m. 194.5 ppb (119) 163.3 ppb (113) 199.5 ppb (120) 31.0 ppb (30) N/A 1.0 ppb (2) 1.0 ppb (1) 0.97 ppb (12) N/A 9.6 μg/m3 (40) 120.0
 
Dec. 2, 2020, 10 a.m. 208.4 ppb (122) 172.1 ppb (115) 210.5 ppb (122) 36.0 ppb (34) N/A 1.0 ppb (2) 1.0 ppb (1) 1.02 ppb (12) N/A 1.9 μg/m3 (8) 122.0
 
Dec. 2, 2020, 9 a.m. 182.0 ppb (117) 151.8 ppb (111) 192.5 ppb (119) 30.0 ppb (29) N/A 1.0 ppb (2) 1.0 ppb (1) 1.12 ppb (13) N/A 15.5 μg/m3 (59) 119.0
 
Dec. 2, 2020, 8 a.m. 175.6 ppb (116) 145.6 ppb (110) 179.7 ppb (116) 30.0 ppb (29) N/A 1.0 ppb (2) 1.0 ppb (1) 1.08 ppb (13) N/A 24.6 μg/m3 (78) 116.0
 
Dec. 2, 2020, 7 a.m. 175.2 ppb (116) 144.2 ppb (110) 181.3 ppb (117) 31.0 ppb (30) N/A 1.0 ppb (2) 1.0 ppb (1) 1.0 ppb (12) N/A N/A 117.0
 
Dec. 2, 2020, 6 a.m. 152.0 ppb (111) 121.0 ppb (105) 173.7 ppb (115) 31.0 ppb (30) N/A 1.0 ppb (2) 2.0 ppb (2) 1.06 ppb (13) N/A 20.9 μg/m3 (70) 115.0
 
Dec. 2, 2020, 5 a.m. 133.1 ppb (108) 102.3 ppb (102) 138.7 ppb (109) 31.0 ppb (30) N/A 1.0 ppb (2) 2.0 ppb (2) 0.99 ppb (12) N/A 20.0 μg/m3 (68) 109.0
 
Dec. 2, 2020, 4 a.m. 125.4 ppb (106) 95.0 ppb (95) 143.6 ppb (110) 30.0 ppb (29) N/A 1.0 ppb (2) 2.0 ppb (2) 0.94 ppb (11) N/A 24.0 μg/m3 (77) 110.0
 
Dec. 2, 2020, 3 a.m. 97.4 ppb (98) 65.5 ppb (64) 115.5 ppb (104) 32.0 ppb (31) N/A 1.0 ppb (2) 2.0 ppb (2) 0.83 ppb (10) N/A 19.4 μg/m3 (67) 104.0
 
Dec. 2, 2020, 2 a.m. 88.4 ppb (88) 55.7 ppb (53) 103.1 ppb (102) 33.0 ppb (32) N/A 1.0 ppb (2) 2.0 ppb (2) 0.75 ppb (10) N/A 18.6 μg/m3 (65) 102.0
 
Dec. 2, 2020, 1 a.m. 57.0 ppb (55) 23.6 ppb (23) 56.7 ppb (54) 34.0 ppb (33) N/A 0.0 ppb (0) 1.0 ppb (1) 0.57 ppb (7) N/A 10.3 μg/m3 (43) 55.0
 
Dec. 2, 2020, midnight 57.4 ppb (55) 20.3 ppb (20) 50.0 ppb (48) 37.0 ppb (35) N/A 1.0 ppb (2) 1.0 ppb (1) 0.34 ppb (4) N/A 10.0 μg/m3 (42) 55.0
 
Dec. 1, 2020, 11 p.m. 43.4 ppb (41) 12.3 ppb (12) 40.8 ppb (39) 31.0 ppb (30) N/A 0.0 ppb (0) 5.0 ppb (5) 0.28 ppb (4) N/A 7.4 μg/m3 (31) 41.0
 
Dec. 1, 2020, 10 p.m. 14.6 ppb (14) 2.1 ppb (2) 13.8 ppb (14) 13.0 ppb (13) N/A 0.0 ppb (0) 20.0 ppb (19) 0.2 ppb (3) N/A 2.4 μg/m3 (10) 19.0
 
Dec. 1, 2020, 9 p.m. 10.8 ppb (11) 2.7 ppb (3) 9.9 ppb (10) 8.0 ppb (8) N/A 0.0 ppb (0) 26.0 ppb (25) 0.23 ppb (3) N/A 7.7 μg/m3 (33) 33.0
 
Dec. 1, 2020, 8 p.m. 12.8 ppb (13) 4.6 ppb (5) 12.4 ppb (12) 8.0 ppb (8) N/A 0.0 ppb (0) 25.0 ppb (24) 0.19 ppb (3) N/A 7.5 μg/m3 (32) 32.0
 
Dec. 1, 2020, 7 p.m. 12.8 ppb (13) 5.0 ppb (5) 13.3 ppb (13) 8.0 ppb (8) N/A 0.0 ppb (0) 25.0 ppb (24) 0.23 ppb (3) N/A 8.6 μg/m3 (36) 36.0
 
Dec. 1, 2020, 6 p.m. 10.5 ppb (10) 4.6 ppb (5) 10.9 ppb (11) 6.0 ppb (6) N/A 0.0 ppb (0) 24.0 ppb (23) 0.19 ppb (3) N/A 8.2 μg/m3 (35) 35.0
 
Dec. 1, 2020, 5 p.m. 11.2 ppb (11) 5.5 ppb (6) 10.7 ppb (11) 6.0 ppb (6) N/A 0.0 ppb (0) 23.0 ppb (22) 0.22 ppb (3) N/A 5.6 μg/m3 (24) 24.0
 
Dec. 1, 2020, 4 p.m. 12.0 ppb (12) 6.4 ppb (7) 12.6 ppb (12) 6.0 ppb (6) N/A 0.0 ppb (0) 21.0 ppb (20) 0.25 ppb (3) N/A 10.1 μg/m3 (43) 43.0
 
Dec. 1, 2020, 3 p.m. 21.6 ppb (21) 11.9 ppb (12) 21.1 ppb (20) 10.0 ppb (10) N/A 0.0 ppb (0) 14.0 ppb (13) 0.27 ppb (4) N/A 8.2 μg/m3 (35) 35.0
 
Dec. 1, 2020, 2 p.m. 24.7 ppb (24) 11.0 ppb (11) 22.9 ppb (22) 14.0 ppb (14) N/A 0.0 ppb (0) 11.0 ppb (11) 0.28 ppb (4) N/A 5.2 μg/m3 (22) 24.0
 
Dec. 1, 2020, 1 p.m. 25.6 ppb (25) 7.3 ppb (7) 22.1 ppb (21) 18.0 ppb (17) N/A 0.0 ppb (0) 6.0 ppb (6) 0.25 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
Dec. 1, 2020, noon 20.4 ppb (20) 2.3 ppb (3) 18.3 ppb (18) 18.0 ppb (17) N/A 0.0 ppb (0) 6.0 ppb (6) 0.2 ppb (3) N/A 2.4 μg/m3 (10) 20.0
 
Dec. 1, 2020, 11 a.m. 18.7 ppb (18) 1.5 ppb (2) 17.0 ppb (17) 17.0 ppb (17) N/A 0.0 ppb (0) 7.0 ppb (7) 0.2 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Dec. 1, 2020, 10 a.m. 15.5 ppb (15) 1.0 ppb (1) 13.9 ppb (14) 15.0 ppb (15) N/A 0.0 ppb (0) 9.0 ppb (9) 0.19 ppb (3) N/A 1.7 μg/m3 (8) 15.0
 
Dec. 1, 2020, 9 a.m. 12.7 ppb (12) 0.6 ppb (1) 11.5 ppb (11) 12.0 ppb (12) N/A 0.0 ppb (0) 11.0 ppb (11) 0.18 ppb (3) N/A 4.7 μg/m3 (20) 20.0
 
Dec. 1, 2020, 8 a.m. 9.6 ppb (10) 0.4 ppb (1) 8.9 ppb (9) 9.0 ppb (9) N/A 0.0 ppb (0) 15.0 ppb (14) 0.17 ppb (3) N/A 5.1 μg/m3 (22) 22.0
 
Dec. 1, 2020, 7 a.m. 8.4 ppb (8) 0.3 ppb (1) 7.7 ppb (8) 8.0 ppb (8) N/A 0.0 ppb (0) 17.0 ppb (16) 0.15 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Dec. 1, 2020, 6 a.m. 7.9 ppb (8) 0.3 ppb (1) 7.3 ppb (7) 8.0 ppb (8) N/A 0.0 ppb (0) 18.0 ppb (17) 0.14 ppb (2) N/A 3.3 μg/m3 (14) 17.0
 
Dec. 1, 2020, 5 a.m. 6.4 ppb (7) 0.3 ppb (1) 6.0 ppb (6) 6.0 ppb (6) N/A 0.0 ppb (0) 19.0 ppb (18) 0.17 ppb (3) N/A 3.4 μg/m3 (15) 18.0
 
Dec. 1, 2020, 4 a.m. 5.4 ppb (6) 0.3 ppb (1) 5.1 ppb (5) 5.0 ppb (5) N/A 0.0 ppb (0) 21.0 ppb (20) 0.16 ppb (3) N/A 2.0 μg/m3 (9) 20.0
 
Dec. 1, 2020, 3 a.m. 5.2 ppb (5) 0.2 ppb (1) 5.0 ppb (5) 5.0 ppb (5) N/A 0.0 ppb (0) 21.0 ppb (20) 0.16 ppb (3) N/A 2.2 μg/m3 (10) 20.0
 
Dec. 1, 2020, 2 a.m. 4.1 ppb (4) 0.3 ppb (1) 3.9 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 23.0 ppb (22) 0.16 ppb (3) N/A 1.6 μg/m3 (7) 22.0
 
Dec. 1, 2020, 1 a.m. 3.7 ppb (4) 0.3 ppb (1) 3.4 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 24.0 ppb (23) 0.16 ppb (3) N/A 2.7 μg/m3 (12) 23.0
 
Dec. 1, 2020, midnight 2.8 ppb (3) 0.3 ppb (1) 2.6 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (24) 0.14 ppb (2) N/A 2.7 μg/m3 (12) 24.0
 
Nov. 30, 2020, 11 p.m. 3.6 ppb (4) 0.2 ppb (1) 3.3 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 25.0 ppb (24) 0.14 ppb (2) N/A 1.1 μg/m3 (5) 24.0
 
Nov. 30, 2020, 10 p.m. 3.7 ppb (4) 0.5 ppb (1) 3.3 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (24) 0.15 ppb (2) N/A 4.2 μg/m3 (18) 24.0
 
Nov. 30, 2020, 9 p.m. 4.2 ppb (4) 2.0 ppb (2) 4.1 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (24) 0.2 ppb (3) N/A -0.2 μg/m3 (0) 24.0
 
Nov. 30, 2020, 8 p.m. 5.3 ppb (5) 2.4 ppb (3) 4.8 ppb (5) 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (25) 0.14 ppb (2) N/A 2.6 μg/m3 (11) 25.0
 
Nov. 30, 2020, 7 p.m. 4.7 ppb (5) 2.5 ppb (3) 4.3 ppb (5) 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (25) 0.18 ppb (3) N/A 1.6 μg/m3 (7) 25.0
 
Nov. 30, 2020, 6 p.m. 5.1 ppb (5) 2.6 ppb (3) 5.2 ppb (5) 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (24) 0.19 ppb (3) N/A 1.5 μg/m3 (7) 24.0
 
Nov. 30, 2020, 5 p.m. 4.9 ppb (5) 2.4 ppb (3) 4.4 ppb (5) 3.0 ppb (3) N/A 0.0 ppb (0) 24.0 ppb (23) 0.21 ppb (3) N/A 4.9 μg/m3 (21) 23.0
 
Nov. 30, 2020, 4 p.m. 4.8 ppb (5) 2.5 ppb (3) 4.7 ppb (5) 2.0 ppb (2) N/A 0.0 ppb (0) 23.0 ppb (22) 0.22 ppb (3) N/A 3.7 μg/m3 (16) 22.0
 
Nov. 30, 2020, 3 p.m. 4.9 ppb (5) 1.9 ppb (2) 4.6 ppb (5) 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (21) 0.17 ppb (3) N/A -0.4 μg/m3 (0) 21.0
 
Nov. 30, 2020, 2 p.m. 5.9 ppb (6) 2.0 ppb (2) 5.2 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 20.0 ppb (19) 0.2 ppb (3) N/A 2.0 μg/m3 (9) 19.0
 
Nov. 30, 2020, 1 p.m. 4.0 ppb (4) 0.6 ppb (1) 3.5 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 22.0 ppb (21) 0.15 ppb (2) N/A 1.8 μg/m3 (8) 21.0
 
Nov. 30, 2020, noon 3.1 ppb (3) 0.3 ppb (1) 2.8 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 23.0 ppb (22) 0.13 ppb (2) N/A 5.4 μg/m3 (23) 23.0
 
Nov. 30, 2020, 11 a.m. 2.1 ppb (2) 0.2 ppb (1) 2.1 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 24.0 ppb (23) 0.14 ppb (2) N/A 0.7 μg/m3 (3) 23.0
 
Nov. 30, 2020, 10 a.m. 1.6 ppb (2) 0.2 ppb (1) 1.7 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 25.0 ppb (24) 0.13 ppb (2) N/A 0.8 μg/m3 (4) 24.0
 
Nov. 30, 2020, 9 a.m. 1.3 ppb (2) 0.2 ppb (1) 1.4 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 25.0 ppb (24) 0.13 ppb (2) N/A 2.2 μg/m3 (10) 24.0
 
Nov. 30, 2020, 8 a.m. 1.1 ppb (2) 0.3 ppb (1) 1.2 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (25) 0.13 ppb (2) N/A 4.1 μg/m3 (18) 25.0
 
Nov. 30, 2020, 7 a.m. 1.1 ppb (2) 0.3 ppb (1) 1.2 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) 28.0 ppb (26) 0.14 ppb (2) N/A -1.7 μg/m3 (0) 26.0
 
Nov. 30, 2020, 6 a.m. 1.2 ppb (2) 0.3 ppb (1) 1.2 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) 26.0 ppb (25) 0.13 ppb (2) N/A 2.5 μg/m3 (11) 25.0
 
Nov. 30, 2020, 5 a.m. 1.2 ppb (2) 0.3 ppb (1) 1.3 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) 26.0 ppb (25) 0.13 ppb (2) N/A 2.5 μg/m3 (11) 25.0
 
Nov. 30, 2020, 4 a.m. 1.4 ppb (2) 0.3 ppb (1) 1.6 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (25) 0.14 ppb (2) N/A 2.6 μg/m3 (11) 25.0
 
Nov. 30, 2020, 3 a.m. 1.6 ppb (2) 0.3 ppb (1) 1.9 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 25.0 ppb (24) 0.14 ppb (2) N/A 3.6 μg/m3 (16) 24.0
 
Nov. 30, 2020, 2 a.m. 2.5 ppb (3) 0.3 ppb (1) 2.7 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (21) 0.15 ppb (2) N/A 1.6 μg/m3 (7) 21.0
 
Nov. 30, 2020, 1 a.m. 2.4 ppb (3) 0.3 ppb (1) 2.8 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 20.0 ppb (19) 0.15 ppb (2) N/A 11.8 μg/m3 (50) 50.0
 
Nov. 30, 2020, midnight 3.8 ppb (4) 0.3 ppb (1) 4.0 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 18.0 ppb (17) 0.15 ppb (2) N/A 5.5 μg/m3 (23) 23.0
 
Nov. 29, 2020, 11 p.m. 4.5 ppb (5) 0.3 ppb (1) 4.5 ppb (5) 5.0 ppb (5) N/A 0.0 ppb (0) 21.0 ppb (20) 0.18 ppb (3) N/A 6.5 μg/m3 (28) 28.0
 
Nov. 29, 2020, 10 p.m. 8.8 ppb (9) 0.4 ppb (1) 7.7 ppb (8) 9.0 ppb (9) N/A 0.0 ppb (0) 22.0 ppb (21) 0.25 ppb (3) N/A 14.0 μg/m3 (55) 55.0
 
Nov. 29, 2020, 9 p.m. 6.1 ppb (6) 0.5 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 26.0 ppb (25) 0.22 ppb (3) N/A -0.4 μg/m3 (0) 25.0
 
Nov. 29, 2020, 8 p.m. 3.8 ppb (4) 0.4 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 30.0 ppb (28) 0.19 ppb (3) N/A 3.7 μg/m3 (16) 28.0
 
Nov. 29, 2020, 7 p.m. 74.6 ppb (73) 45.4 ppb (43) N/A 29.0 ppb (28) N/A 1.0 ppb (2) 4.0 ppb (4) 0.44 ppb (5) N/A 11.3 μg/m3 (48) 73.0
 
Nov. 29, 2020, 6 p.m. 61.8 ppb (60) 37.2 ppb (36) 62.1 ppb (60) 25.0 ppb (24) N/A 1.0 ppb (2) 7.0 ppb (7) 0.42 ppb (5) N/A 16.2 μg/m3 (60) 60.0
 
Nov. 29, 2020, 5 p.m. 34.8 ppb (33) 18.5 ppb (18) 34.8 ppb (33) 16.0 ppb (16) N/A 1.0 ppb (2) 12.0 ppb (12) 0.31 ppb (4) N/A 13.3 μg/m3 (54) 54.0
 
Nov. 29, 2020, 4 p.m. 27.3 ppb (26) 11.2 ppb (11) 26.7 ppb (26) 16.0 ppb (16) N/A 1.0 ppb (2) 11.0 ppb (11) 0.31 ppb (4) N/A 5.9 μg/m3 (25) 26.0
 
Nov. 29, 2020, 3 p.m. 29.4 ppb (28) 11.6 ppb (11) 28.6 ppb (27) 18.0 ppb (17) N/A N/A 8.0 ppb (8) 0.31 ppb (4) N/A 15.3 μg/m3 (58) 58.0
 
Nov. 29, 2020, 2 p.m. 29.7 ppb (29) 9.5 ppb (9) 28.2 ppb (27) 20.0 ppb (19) N/A N/A 6.0 ppb (6) 0.27 ppb (4) N/A 7.6 μg/m3 (32) 32.0
 
Nov. 29, 2020, 1 p.m. 23.8 ppb (23) 3.1 ppb (3) 22.3 ppb (22) 21.0 ppb (20) N/A 0.0 ppb (0) 6.0 ppb (6) 0.26 ppb (4) N/A 9.1 μg/m3 (38) 38.0
 
Nov. 29, 2020, noon 32.6 ppb (31) 8.6 ppb (9) 28.3 ppb (27) 24.0 ppb (23) N/A 1.0 ppb (2) 2.0 ppb (2) 0.24 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 29, 2020, 11 a.m. 42.3 ppb (40) 17.0 ppb (17) 41.2 ppb (39) 25.0 ppb (24) N/A 1.0 ppb (2) 1.0 ppb (1) N/A N/A 10.9 μg/m3 (46) 46.0
 
Nov. 29, 2020, 10 a.m. 53.7 ppb (51) 28.1 ppb (27) 48.3 ppb (46) 26.0 ppb (25) N/A 1.0 ppb (2) 1.0 ppb (1) N/A N/A 13.3 μg/m3 (54) 54.0
 
Nov. 29, 2020, 9 a.m. 55.5 ppb (53) 30.0 ppb (29) 59.5 ppb (57) 26.0 ppb (25) N/A 1.0 ppb (2) 1.0 ppb (1) 0.34 ppb (4) N/A 9.8 μg/m3 (41) 57.0
 
Nov. 29, 2020, 8 a.m. 36.7 ppb (35) 8.4 ppb (8) 36.0 ppb (34) 29.0 ppb (28) N/A 1.0 ppb (2) N/A 0.29 ppb (4) N/A 12.9 μg/m3 (53) 53.0
 
Nov. 29, 2020, 7 a.m. 31.5 ppb (30) 5.1 ppb (5) 30.8 ppb (30) 27.0 ppb (26) N/A 1.0 ppb (2) 2.0 ppb (2) 0.37 ppb (5) N/A 10.3 μg/m3 (43) 43.0
 
Nov. 29, 2020, 6 a.m. 18.3 ppb (18) 0.5 ppb (1) 17.3 ppb (17) 18.0 ppb (17) N/A 1.0 ppb (2) 10.0 ppb (10) 0.33 ppb (4) N/A 6.3 μg/m3 (27) 27.0
 
Nov. 29, 2020, 5 a.m. 24.9 ppb (24) 3.1 ppb (3) 21.3 ppb (21) 22.0 ppb (21) N/A 1.0 ppb (2) 10.0 ppb (10) 0.31 ppb (4) N/A 8.4 μg/m3 (36) 36.0
 
Nov. 29, 2020, 4 a.m. 28.3 ppb (27) 3.9 ppb (4) 21.3 ppb (21) 25.0 ppb (24) N/A 1.0 ppb (2) 8.0 ppb (8) 0.36 ppb (5) N/A 11.4 μg/m3 (48) 48.0
 
Nov. 29, 2020, 3 a.m. 45.8 ppb (44) 16.5 ppb (16) 40.7 ppb (39) 30.0 ppb (29) N/A 0.0 ppb (0) 1.0 ppb (1) 0.61 ppb (7) N/A 15.5 μg/m3 (59) 59.0
 
Nov. 29, 2020, 2 a.m. 24.5 ppb (24) 2.4 ppb (3) 27.1 ppb (26) 22.0 ppb (21) N/A 0.0 ppb (0) 9.0 ppb (9) 0.37 ppb (5) N/A 14.9 μg/m3 (57) 57.0
 
Nov. 29, 2020, 1 a.m. 20.1 ppb (19) 1.3 ppb (2) 17.1 ppb (17) 19.0 ppb (18) N/A 0.0 ppb (0) 14.0 ppb (13) 0.33 ppb (4) N/A 10.3 μg/m3 (43) 43.0
 
Nov. 29, 2020, midnight 15.2 ppb (15) 1.1 ppb (2) 13.8 ppb (14) 14.0 ppb (14) N/A 1.0 ppb (2) 19.0 ppb (18) 0.29 ppb (4) N/A 6.5 μg/m3 (28) 28.0
 
Nov. 28, 2020, 11 p.m. 16.2 ppb (16) 0.6 ppb (1) 14.9 ppb (15) 16.0 ppb (16) N/A 1.0 ppb (2) 18.0 ppb (17) 0.24 ppb (3) N/A 4.5 μg/m3 (19) 19.0
 
Nov. 28, 2020, 10 p.m. 13.7 ppb (13) 1.0 ppb (1) 12.0 ppb (12) 13.0 ppb (13) N/A 1.0 ppb (2) 22.0 ppb (21) 0.25 ppb (3) N/A 6.3 μg/m3 (27) 27.0
 
Nov. 28, 2020, 9 p.m. 11.1 ppb (11) 1.6 ppb (2) 11.3 ppb (11) 10.0 ppb (10) N/A 1.0 ppb (2) 25.0 ppb (24) 0.21 ppb (3) N/A 6.1 μg/m3 (26) 26.0
 
Nov. 28, 2020, 8 p.m. 12.7 ppb (12) 3.7 ppb (4) 13.1 ppb (13) 9.0 ppb (9) N/A 1.0 ppb (2) 24.0 ppb (23) 0.22 ppb (3) N/A 6.1 μg/m3 (26) 26.0
 
Nov. 28, 2020, 7 p.m. 8.7 ppb (9) 2.8 ppb (3) 9.9 ppb (10) 6.0 ppb (6) N/A 1.0 ppb (2) 26.0 ppb (25) 0.21 ppb (3) N/A 4.4 μg/m3 (19) 25.0
 
Nov. 28, 2020, 6 p.m. 9.2 ppb (9) 3.5 ppb (4) 10.1 ppb (10) 6.0 ppb (6) N/A 0.0 ppb (0) 24.0 ppb (23) 0.2 ppb (3) N/A 8.4 μg/m3 (36) 36.0
 
Nov. 28, 2020, 5 p.m. 8.2 ppb (8) 3.2 ppb (4) 9.2 ppb (9) 5.0 ppb (5) N/A 0.0 ppb (0) 25.0 ppb (24) 0.19 ppb (3) N/A 6.9 μg/m3 (29) 29.0
 
Nov. 28, 2020, 4 p.m. 22.5 ppb (22) 10.0 ppb (10) 21.9 ppb (21) 13.0 ppb (13) N/A 2.0 ppb (3) 19.0 ppb (18) 0.22 ppb (3) N/A 4.6 μg/m3 (20) 22.0
 
Nov. 28, 2020, 3 p.m. 29.4 ppb (28) 13.7 ppb (13) 30.4 ppb (29) 16.0 ppb (16) N/A 1.0 ppb (2) 13.0 ppb (13) 0.29 ppb (4) N/A 9.8 μg/m3 (41) 41.0
 
Nov. 28, 2020, 2 p.m. 48.4 ppb (46) 28.4 ppb (27) 50.6 ppb (48) 20.0 ppb (19) N/A 1.0 ppb (2) 6.0 ppb (6) 0.43 ppb (5) N/A 15.9 μg/m3 (59) 59.0