ID: 320

AQSQID: 131210055

Site Name: United Ave

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

Updated: Feb. 28, 2021, 5:32 a.m.

Location: Atlanta (State Facility), GA

Reporting: True, Located: True

Current AQI: 75.0

Atlanta (State Facility) GA, US: 33.7206, -84.3578

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Feb. 28, 2021, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 13.0 ppb (13) N/A N/A 23.1 μg/m3 (75) 75.0
 
Feb. 28, 2021, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 13.0 ppb (13) N/A N/A 22.6 μg/m3 (74) 74.0
 
Feb. 28, 2021, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 7.0 ppb (7) N/A N/A 24.1 μg/m3 (77) 77.0
 
Feb. 28, 2021, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 4.0 ppb (4) N/A N/A 22.7 μg/m3 (74) 74.0
 
Feb. 28, 2021, midnight N/A N/A N/A N/A N/A 1.0 ppb (2) 12.0 ppb (12) N/A N/A 18.7 μg/m3 (65) 65.0
 
Feb. 27, 2021, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 23.0 ppb (22) N/A N/A 16.4 μg/m3 (61) 61.0
 
Feb. 27, 2021, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 29.0 ppb (27) N/A N/A 14.1 μg/m3 (56) 56.0
 
Feb. 27, 2021, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 28.0 ppb (26) N/A N/A 13.4 μg/m3 (54) 54.0
 
Feb. 27, 2021, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 23.0 ppb (22) N/A N/A 13.3 μg/m3 (54) 54.0
 
Feb. 27, 2021, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 22.0 ppb (21) N/A N/A 10.6 μg/m3 (45) 45.0
 
Feb. 27, 2021, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 19.0 ppb (18) N/A N/A 13.4 μg/m3 (54) 54.0
 
Feb. 27, 2021, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 15.0 ppb (14) N/A N/A 13.2 μg/m3 (54) 54.0
 
Feb. 27, 2021, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 13.0 ppb (13) N/A N/A 12.2 μg/m3 (52) 52.0
 
Feb. 27, 2021, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 12.0 ppb (12) N/A N/A 11.4 μg/m3 (48) 48.0
 
Feb. 27, 2021, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 11.0 ppb (11) N/A N/A 9.4 μg/m3 (40) 40.0
 
Feb. 27, 2021, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 12.0 ppb (12) N/A N/A 10.5 μg/m3 (44) 44.0
 
Feb. 27, 2021, noon N/A N/A N/A N/A N/A 1.0 ppb (2) 13.0 ppb (13) N/A N/A 10.1 μg/m3 (43) 43.0
 
Feb. 27, 2021, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 14.0 ppb (13) N/A N/A 10.9 μg/m3 (46) 46.0
 
Feb. 27, 2021, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 15.0 ppb (14) N/A N/A 14.1 μg/m3 (56) 56.0
 
Feb. 27, 2021, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 15.0 ppb (14) N/A N/A 13.1 μg/m3 (54) 54.0
 
Feb. 27, 2021, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 17.0 ppb (16) N/A N/A 11.6 μg/m3 (49) 49.0
 
Feb. 27, 2021, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 18.0 ppb (17) N/A N/A 12.7 μg/m3 (53) 53.0
 
Feb. 27, 2021, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 21.0 ppb (20) N/A N/A 10.4 μg/m3 (44) 44.0
 
Feb. 27, 2021, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 23.0 ppb (22) N/A N/A 11.8 μg/m3 (50) 50.0
 
Feb. 27, 2021, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 23.0 ppb (22) N/A N/A 15.1 μg/m3 (58) 58.0
 
Feb. 27, 2021, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 22.0 ppb (21) N/A N/A 15.1 μg/m3 (58) 58.0
 
Feb. 27, 2021, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 22.0 ppb (21) N/A N/A 14.7 μg/m3 (57) 57.0
 
Feb. 27, 2021, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 21.0 ppb (20) N/A N/A 14.6 μg/m3 (57) 57.0
 
Feb. 27, 2021, midnight N/A N/A N/A N/A N/A 1.0 ppb (2) 22.0 ppb (21) N/A N/A 12.4 μg/m3 (52) 52.0
 
Feb. 26, 2021, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 23.0 ppb (22) N/A N/A 11.9 μg/m3 (50) 50.0
 
Feb. 26, 2021, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 25.0 ppb (24) N/A N/A 12.0 μg/m3 (50) 50.0
 
Feb. 26, 2021, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 25.0 ppb (24) N/A N/A 12.4 μg/m3 (52) 52.0
 
Feb. 26, 2021, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 26.0 ppb (25) N/A N/A 9.2 μg/m3 (39) 39.0
 
Feb. 26, 2021, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 28.0 ppb (26) N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 26, 2021, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 29.0 ppb (27) N/A N/A 10.0 μg/m3 (42) 42.0
 
Feb. 26, 2021, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 28.0 ppb (26) N/A N/A 14.0 μg/m3 (55) 55.0
 
Feb. 26, 2021, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 28.0 ppb (26) N/A N/A 15.4 μg/m3 (58) 58.0
 
Feb. 26, 2021, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 28.0 ppb (26) N/A N/A 12.6 μg/m3 (53) 53.0
 
Feb. 26, 2021, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 25.0 ppb (24) N/A N/A 14.2 μg/m3 (56) 56.0
 
Feb. 26, 2021, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 21.0 ppb (20) N/A N/A 11.7 μg/m3 (49) 49.0
 
Feb. 26, 2021, noon N/A N/A N/A N/A N/A 1.0 ppb (2) 25.0 ppb (24) N/A N/A 13.0 μg/m3 (53) 53.0
 
Feb. 26, 2021, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 15.2 μg/m3 (58) 58.0
 
Feb. 26, 2021, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 27.0 ppb (25) N/A N/A 20.8 μg/m3 (70) 70.0
 
Feb. 26, 2021, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 4.0 ppb (4) N/A N/A 20.1 μg/m3 (68) 68.0
 
Feb. 26, 2021, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 7.0 ppb (7) N/A N/A 20.5 μg/m3 (69) 69.0
 
Feb. 26, 2021, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 7.0 ppb (7) N/A N/A 22.7 μg/m3 (74) 74.0
 
Feb. 26, 2021, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 6.0 ppb (6) N/A N/A 21.8 μg/m3 (72) 72.0
 
Feb. 26, 2021, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 10.0 ppb (10) N/A N/A 19.7 μg/m3 (67) 67.0
 
Feb. 26, 2021, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 12.0 ppb (12) N/A N/A 18.5 μg/m3 (65) 65.0
 
Feb. 26, 2021, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 16.0 ppb (15) N/A N/A 20.9 μg/m3 (70) 70.0
 
Feb. 26, 2021, 2 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 20.0 ppb (19) N/A N/A 18.7 μg/m3 (65) 65.0
 
Feb. 26, 2021, 1 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 31.0 ppb (29) N/A N/A 15.9 μg/m3 (59) 59.0
 
Feb. 26, 2021, midnight N/A N/A N/A N/A N/A 2.0 ppb (3) 36.0 ppb (34) N/A N/A 16.6 μg/m3 (61) 61.0
 
Feb. 25, 2021, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 48.0 ppb (45) N/A N/A 15.2 μg/m3 (58) 58.0
 
Feb. 25, 2021, 10 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 52.0 ppb (49) N/A N/A 10.7 μg/m3 (45) 49.0
 
Feb. 25, 2021, 9 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 53.0 ppb (50) N/A N/A 10.8 μg/m3 (46) 50.0
 
Feb. 25, 2021, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 55.0 ppb (51) N/A N/A 7.3 μg/m3 (31) 51.0
 
Feb. 25, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A 4.3 μg/m3 (18) 50.0
 
Feb. 25, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A N/A 0.0 μg/m3 (0) 50.0
 
Feb. 25, 2021, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 11.0 ppb (11) N/A N/A 0.0 μg/m3 (0) 11.0
 
Feb. 25, 2021, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 41.0 ppb (38) N/A N/A N/A 38.0
 
Feb. 25, 2021, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 37.0 ppb (35) N/A N/A 22.7 μg/m3 (74) 74.0
 
Feb. 25, 2021, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 31.0 ppb (29) N/A N/A 29.3 μg/m3 (88) 88.0
 
Feb. 25, 2021, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 24.0 ppb (23) N/A N/A 29.7 μg/m3 (89) 89.0
 
Feb. 25, 2021, noon N/A N/A N/A N/A N/A 1.0 ppb (2) 29.0 ppb (27) N/A N/A 27.5 μg/m3 (84) 84.0
 
Feb. 25, 2021, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 31.0 ppb (29) N/A N/A 26.0 μg/m3 (81) 81.0
 
Feb. 25, 2021, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 36.0 ppb (34) N/A N/A 23.8 μg/m3 (76) 76.0
 
Feb. 25, 2021, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 31.0 ppb (29) N/A N/A 23.2 μg/m3 (75) 75.0
 
Feb. 25, 2021, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 6.0 ppb (6) N/A N/A 24.9 μg/m3 (78) 78.0
 
Feb. 25, 2021, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 0.0 ppb (0) N/A N/A 23.5 μg/m3 (75) 75.0
 
Feb. 25, 2021, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 7.0 ppb (7) N/A N/A 25.1 μg/m3 (79) 79.0
 
Feb. 25, 2021, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 6.0 ppb (6) N/A N/A 28.3 μg/m3 (86) 86.0
 
Feb. 25, 2021, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 3.0 ppb (3) N/A N/A 28.2 μg/m3 (85) 85.0
 
Feb. 25, 2021, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 6.0 ppb (6) N/A N/A 27.7 μg/m3 (84) 84.0
 
Feb. 25, 2021, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 16.0 ppb (15) N/A N/A 22.3 μg/m3 (73) 73.0
 
Feb. 25, 2021, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 31.0 ppb (29) N/A N/A 21.8 μg/m3 (72) 72.0
 
Feb. 25, 2021, midnight N/A N/A N/A N/A N/A 1.0 ppb (2) 41.0 ppb (38) N/A N/A 16.9 μg/m3 (62) 62.0
 
Feb. 24, 2021, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 49.0 ppb (46) N/A N/A 12.3 μg/m3 (52) 52.0
 
Feb. 24, 2021, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 53.0 ppb (50) N/A N/A 11.1 μg/m3 (47) 50.0
 
Feb. 24, 2021, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 54.0 ppb (50) N/A N/A 8.6 μg/m3 (36) 50.0
 
Feb. 24, 2021, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 53.0 ppb (50) N/A N/A 8.3 μg/m3 (35) 50.0
 
Feb. 24, 2021, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 52.0 ppb (49) N/A N/A 5.1 μg/m3 (22) 49.0
 
Feb. 24, 2021, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 50.0 ppb (47) N/A N/A 3.5 μg/m3 (15) 47.0
 
Feb. 24, 2021, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 47.0 ppb (44) N/A N/A 4.2 μg/m3 (18) 44.0
 
Feb. 24, 2021, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 44.0 ppb (41) N/A N/A 6.0 μg/m3 (25) 41.0
 
Feb. 24, 2021, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 37.0 ppb (35) N/A N/A 9.2 μg/m3 (39) 39.0
 
Feb. 24, 2021, 2 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 24.0 ppb (23) N/A N/A 20.9 μg/m3 (70) 70.0
 
Feb. 24, 2021, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 5.0 ppb (5) N/A N/A 21.1 μg/m3 (70) 70.0
 
Feb. 24, 2021, noon N/A N/A N/A N/A N/A 1.0 ppb (2) 0.0 ppb (0) N/A N/A 19.9 μg/m3 (68) 68.0
 
Feb. 24, 2021, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 0.0 ppb (0) N/A N/A 23.6 μg/m3 (76) 76.0
 
Feb. 24, 2021, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 0.0 ppb (0) N/A N/A 23.8 μg/m3 (76) 76.0
 
Feb. 24, 2021, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 0.0 ppb (0) N/A N/A 23.0 μg/m3 (74) 74.0
 
Feb. 24, 2021, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 0.0 ppb (0) N/A N/A 23.4 μg/m3 (75) 75.0
 
Feb. 24, 2021, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 0.0 ppb (0) N/A N/A 22.1 μg/m3 (73) 73.0
 
Feb. 24, 2021, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 0.0 ppb (0) N/A N/A 20.7 μg/m3 (70) 70.0
 
Feb. 24, 2021, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 0.0 ppb (0) N/A N/A 21.1 μg/m3 (70) 70.0
 
Feb. 24, 2021, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 1.0 ppb (1) N/A N/A 21.9 μg/m3 (72) 72.0
 
Feb. 24, 2021, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 2.0 ppb (2) N/A N/A 16.7 μg/m3 (61) 61.0
 
Feb. 24, 2021, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 9.0 ppb (9) N/A N/A 11.7 μg/m3 (49) 49.0
 
Feb. 24, 2021, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 20.0 ppb (19) N/A N/A 9.9 μg/m3 (42) 42.0
 
Feb. 24, 2021, midnight N/A N/A N/A N/A N/A 1.0 ppb (2) 29.0 ppb (27) N/A N/A 6.4 μg/m3 (27) 27.0
 
Feb. 23, 2021, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 39.0 ppb (37) N/A N/A 5.0 μg/m3 (21) 37.0
 
Feb. 23, 2021, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 43.0 ppb (40) N/A N/A 3.0 μg/m3 (13) 40.0
 
Feb. 23, 2021, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 44.0 ppb (41) N/A N/A 3.1 μg/m3 (13) 41.0
 
Feb. 23, 2021, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 45.0 ppb (42) N/A N/A 5.1 μg/m3 (22) 42.0
 
Feb. 23, 2021, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 47.0 ppb (44) N/A N/A 1.3 μg/m3 (6) 44.0
 
Feb. 23, 2021, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 46.0 ppb (43) N/A N/A 1.0 μg/m3 (5) 43.0
 
Feb. 23, 2021, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 44.0 ppb (41) N/A N/A 3.0 μg/m3 (13) 41.0
 
Feb. 23, 2021, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 37.0 ppb (35) N/A N/A 4.4 μg/m3 (19) 35.0
 
Feb. 23, 2021, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 33.0 ppb (31) N/A N/A 4.4 μg/m3 (19) 31.0
 
Feb. 23, 2021, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 29.0 ppb (27) N/A N/A 8.1 μg/m3 (34) 34.0
 
Feb. 23, 2021, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 22.0 ppb (21) N/A N/A 8.0 μg/m3 (34) 34.0
 
Feb. 23, 2021, noon N/A N/A N/A N/A N/A 1.0 ppb (2) 11.0 ppb (11) N/A N/A 7.4 μg/m3 (31) 31.0
 
Feb. 23, 2021, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 20.0 ppb (19) N/A N/A 6.7 μg/m3 (28) 28.0
 
Feb. 23, 2021, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 25.0 ppb (24) N/A N/A 5.9 μg/m3 (25) 25.0
 
Feb. 23, 2021, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 31.0 ppb (29) N/A N/A 5.7 μg/m3 (24) 29.0
 
Feb. 23, 2021, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 5.5 μg/m3 (23) 30.0
 
Feb. 23, 2021, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 31.0 ppb (29) N/A N/A 5.7 μg/m3 (24) 29.0
 
Feb. 23, 2021, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 31.0 ppb (29) N/A N/A 6.4 μg/m3 (27) 29.0
 
Feb. 23, 2021, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 31.0 ppb (29) N/A N/A 5.0 μg/m3 (21) 29.0
 
Feb. 23, 2021, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 6.9 μg/m3 (29) 33.0
 
Feb. 23, 2021, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 9.3 μg/m3 (39) 39.0
 
Feb. 23, 2021, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 8.5 μg/m3 (36) 36.0
 
Feb. 23, 2021, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 36.0 ppb (34) N/A N/A 6.6 μg/m3 (28) 34.0
 
Feb. 23, 2021, midnight N/A N/A N/A N/A N/A 1.0 ppb (2) 37.0 ppb (35) N/A N/A 4.3 μg/m3 (18) 35.0
 
Feb. 22, 2021, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 38.0 ppb (36) N/A N/A 1.4 μg/m3 (6) 36.0
 
Feb. 22, 2021, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 40.0 ppb (38) N/A N/A -2.6 μg/m3 (0) 38.0
 
Feb. 22, 2021, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 41.0 ppb (38) N/A N/A -4.8 μg/m3 (0) 38.0
 
Feb. 22, 2021, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 41.0 ppb (38) N/A N/A -2.5 μg/m3 (0) 38.0
 
Feb. 22, 2021, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 36.0 ppb (34) N/A N/A 1.0 μg/m3 (5) 34.0
 
Feb. 22, 2021, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 31.0 ppb (29) N/A N/A 4.3 μg/m3 (18) 29.0
 
Feb. 22, 2021, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 28.0 ppb (26) N/A N/A 6.5 μg/m3 (28) 28.0
 
Feb. 22, 2021, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 25.0 ppb (24) N/A N/A 6.4 μg/m3 (27) 27.0
 
Feb. 22, 2021, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 25.0 ppb (24) N/A N/A 5.4 μg/m3 (23) 24.0
 
Feb. 22, 2021, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 27.0 ppb (25) N/A N/A 6.6 μg/m3 (28) 28.0
 
Feb. 22, 2021, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 25.0 ppb (24) N/A N/A 5.2 μg/m3 (22) 24.0
 
Feb. 22, 2021, noon N/A N/A N/A N/A N/A 1.0 ppb (2) 23.0 ppb (22) N/A N/A 4.7 μg/m3 (20) 22.0
 
Feb. 22, 2021, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 25.0 ppb (24) N/A N/A 4.2 μg/m3 (18) 24.0
 
Feb. 22, 2021, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 29.0 ppb (27) N/A N/A 4.9 μg/m3 (21) 27.0
 
Feb. 22, 2021, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 31.0 ppb (29) N/A N/A 5.2 μg/m3 (22) 29.0
 
Feb. 22, 2021, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 31.0 ppb (29) N/A N/A 3.8 μg/m3 (16) 29.0
 
Feb. 22, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 5.3 μg/m3 (23) 34.0
 
Feb. 22, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 5.8 μg/m3 (25) 34.0
 
Feb. 22, 2021, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 7.5 μg/m3 (32) 33.0
 
Feb. 22, 2021, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 37.0 ppb (35) N/A N/A 9.2 μg/m3 (39) 39.0
 
Feb. 22, 2021, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 38.0 ppb (36) N/A N/A 7.3 μg/m3 (31) 36.0
 
Feb. 22, 2021, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 37.0 ppb (35) N/A N/A 8.5 μg/m3 (36) 36.0
 
Feb. 22, 2021, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 38.0 ppb (36) N/A N/A 10.1 μg/m3 (43) 43.0
 
Feb. 22, 2021, midnight N/A N/A N/A N/A N/A 1.0 ppb (2) 38.0 ppb (36) N/A N/A 7.6 μg/m3 (32) 36.0
 
Feb. 21, 2021, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 41.0 ppb (38) N/A N/A 3.8 μg/m3 (16) 38.0
 
Feb. 21, 2021, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 45.0 ppb (42) N/A N/A 4.5 μg/m3 (19) 42.0
 
Feb. 21, 2021, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 45.0 ppb (42) N/A N/A 2.3 μg/m3 (10) 42.0
 
Feb. 21, 2021, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 45.0 ppb (42) N/A N/A 1.3 μg/m3 (6) 42.0
 
Feb. 21, 2021, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 43.0 ppb (40) N/A N/A 0.0 μg/m3 (0) 40.0
 
Feb. 21, 2021, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 42.0 ppb (39) N/A N/A 0.4 μg/m3 (2) 39.0
 
Feb. 21, 2021, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 41.0 ppb (38) N/A N/A 2.1 μg/m3 (9) 38.0
 
Feb. 21, 2021, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 38.0 ppb (36) N/A N/A 3.8 μg/m3 (16) 36.0
 
Feb. 21, 2021, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 4.9 μg/m3 (21) 30.0
 
Feb. 21, 2021, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 29.0 ppb (27) N/A N/A 9.9 μg/m3 (42) 42.0
 
Feb. 21, 2021, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 18.0 ppb (17) N/A N/A 6.1 μg/m3 (26) 26.0
 
Feb. 21, 2021, noon N/A N/A N/A N/A N/A 1.0 ppb (2) 20.0 ppb (19) N/A N/A 14.3 μg/m3 (56) 56.0
 
Feb. 21, 2021, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 5.0 ppb (5) N/A N/A 21.3 μg/m3 (71) 71.0
 
Feb. 21, 2021, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 0.0 ppb (0) N/A N/A 28.5 μg/m3 (86) 86.0
 
Feb. 21, 2021, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 0.0 ppb (0) N/A N/A 32.4 μg/m3 (94) 94.0
 
Feb. 21, 2021, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 0.0 ppb (0) N/A N/A 34.5 μg/m3 (99) 99.0
 
Feb. 21, 2021, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 0.0 ppb (0) N/A N/A 33.3 μg/m3 (96) 96.0
 
Feb. 21, 2021, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 1.0 ppb (1) N/A N/A 39.4 μg/m3 (111) 111.0
 
Feb. 21, 2021, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 1.0 ppb (1) N/A N/A 39.1 μg/m3 (110) 110.0