AQSQID: 131210056

Site Name: Nr-Georgia Tech

Location: Atlanta (Georgia Tech), GA

Reporting: True, Located: True

Current AQI: 44.0

Atlanta (Georgia Tech) GA, US: 33.778315, -84.391418

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 22, 2020, 9 a.m. 48.0 ppb (44) 20.3 ppb (19) N/A 28.0 ppb (26) N/A N/A N/A 0.5 ppb (6) N/A 7.6 μg/m3 (32) 44.0
 
Jan. 22, 2020, 8 a.m. 41.6 ppb (39) 17.4 ppb (16) N/A 24.0 ppb (22) N/A N/A N/A 0.4 ppb (4) N/A 6.8 μg/m3 (28) 39.0
 
Jan. 22, 2020, 7 a.m. 25.6 ppb (24) 8.7 ppb (8) N/A 17.0 ppb (16) N/A N/A N/A 0.4 ppb (4) N/A 6.5 μg/m3 (27) 27.0
 
Jan. 22, 2020, 6 a.m. 19.8 ppb (18) 5.7 ppb (5) N/A 14.0 ppb (13) N/A N/A N/A 0.3 ppb (3) N/A 6.4 μg/m3 (27) 27.0
 
Jan. 22, 2020, 5 a.m. 22.6 ppb (21) 7.1 ppb (7) N/A 16.0 ppb (15) N/A N/A N/A 0.3 ppb (3) N/A 4.3 μg/m3 (18) 21.0
 
Jan. 22, 2020, 4 a.m. 22.4 ppb (21) 7.7 ppb (7) N/A 15.0 ppb (14) N/A N/A N/A 0.4 ppb (4) N/A 6.9 μg/m3 (29) 29.0
 
Jan. 22, 2020, 3 a.m. 46.9 ppb (43) 24.3 ppb (23) N/A 22.0 ppb (20) N/A N/A N/A 0.5 ppb (6) N/A 7.6 μg/m3 (32) 43.0
 
Jan. 22, 2020, 2 a.m. 35.4 ppb (33) 15.1 ppb (14) N/A 20.0 ppb (19) N/A N/A N/A 0.5 ppb (6) N/A 7.0 μg/m3 (29) 33.0
 
Jan. 22, 2020, 1 a.m. 30.6 ppb (28) 13.6 ppb (13) N/A 17.0 ppb (16) N/A N/A N/A 0.6 ppb (7) N/A 7.3 μg/m3 (30) 30.0
 
Jan. 22, 2020, midnight 20.3 ppb (19) 5.1 ppb (5) N/A 15.0 ppb (14) N/A N/A N/A 0.4 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 21, 2020, 11 p.m. 20.4 ppb (19) 7.1 ppb (7) N/A 13.0 ppb (12) N/A N/A N/A 0.4 ppb (4) N/A 6.7 μg/m3 (28) 28.0
 
Jan. 21, 2020, 10 p.m. 18.5 ppb (17) 8.9 ppb (8) N/A 10.0 ppb (9) N/A N/A N/A 0.3 ppb (3) N/A 6.1 μg/m3 (25) 25.0
 
Jan. 21, 2020, 9 p.m. 33.3 ppb (31) 19.0 ppb (18) N/A 14.0 ppb (13) N/A N/A N/A 0.4 ppb (4) N/A 6.9 μg/m3 (29) 31.0
 
Jan. 21, 2020, 8 p.m. 48.4 ppb (45) 29.3 ppb (27) N/A 19.0 ppb (18) N/A N/A N/A 0.4 ppb (4) N/A 7.5 μg/m3 (31) 45.0
 
Jan. 21, 2020, 7 p.m. 39.1 ppb (36) 26.4 ppb (24) N/A 13.0 ppb (12) N/A N/A N/A 0.4 ppb (4) N/A 7.4 μg/m3 (31) 36.0
 
Jan. 21, 2020, 6 p.m. 36.0 ppb (33) 25.3 ppb (23) N/A 11.0 ppb (10) N/A N/A N/A 0.4 ppb (4) N/A 7.4 μg/m3 (31) 33.0
 
Jan. 21, 2020, 5 p.m. 44.5 ppb (41) 31.0 ppb (29) N/A 13.0 ppb (12) N/A N/A N/A 0.4 ppb (4) N/A 6.7 μg/m3 (28) 41.0
 
Jan. 21, 2020, 4 p.m. 64.6 ppb (61) 49.4 ppb (46) N/A 15.0 ppb (14) N/A N/A N/A 0.5 ppb (6) N/A 7.8 μg/m3 (32) 61.0
 
Jan. 21, 2020, 3 p.m. 58.8 ppb (55) 41.3 ppb (38) N/A 17.0 ppb (16) N/A N/A N/A 0.5 ppb (6) N/A 7.7 μg/m3 (32) 55.0
 
Jan. 21, 2020, 2 p.m. 51.6 ppb (48) 32.4 ppb (30) N/A 19.0 ppb (18) N/A N/A N/A 0.4 ppb (4) N/A 7.3 μg/m3 (30) 48.0
 
Jan. 21, 2020, 1 p.m. 43.6 ppb (40) 24.7 ppb (23) N/A 19.0 ppb (18) N/A N/A N/A 0.5 ppb (6) N/A 6.8 μg/m3 (28) 40.0
 
Jan. 21, 2020, noon 59.2 ppb (56) 38.6 ppb (36) N/A 20.0 ppb (19) N/A N/A N/A 0.5 ppb (6) N/A 6.9 μg/m3 (29) 56.0
 
Jan. 21, 2020, 11 a.m. 42.9 ppb (40) 25.5 ppb (24) N/A 17.0 ppb (16) N/A N/A N/A 0.5 ppb (6) N/A 6.2 μg/m3 (26) 40.0
 
Jan. 21, 2020, 10 a.m. 53.0 ppb (49) 34.1 ppb (32) N/A 19.0 ppb (18) N/A N/A N/A 0.5 ppb (6) N/A 6.1 μg/m3 (25) 49.0
 
Jan. 21, 2020, 9 a.m. 28.0 ppb (26) 14.5 ppb (13) N/A 14.0 ppb (13) N/A N/A N/A 0.3 ppb (3) N/A 5.8 μg/m3 (24) 26.0
 
Jan. 21, 2020, 8 a.m. 20.6 ppb (19) 10.0 ppb (9) N/A 11.0 ppb (10) N/A N/A N/A 0.3 ppb (3) N/A 5.6 μg/m3 (23) 23.0
 
Jan. 21, 2020, 7 a.m. 19.0 ppb (18) 9.3 ppb (9) N/A 10.0 ppb (9) N/A N/A N/A 0.3 ppb (3) N/A 5.5 μg/m3 (23) 23.0
 
Jan. 21, 2020, 6 a.m. 14.2 ppb (13) 5.6 ppb (5) N/A 9.0 ppb (8) N/A N/A N/A 0.3 ppb (3) N/A 5.3 μg/m3 (22) 22.0
 
Jan. 21, 2020, 5 a.m. 17.3 ppb (16) 7.6 ppb (7) N/A 10.0 ppb (9) N/A N/A N/A 0.3 ppb (3) N/A 3.5 μg/m3 (15) 16.0
 
Jan. 21, 2020, 4 a.m. 17.2 ppb (16) 8.8 ppb (8) N/A 9.0 ppb (8) N/A N/A N/A 0.3 ppb (3) N/A 5.3 μg/m3 (22) 22.0
 
Jan. 21, 2020, 3 a.m. 20.3 ppb (19) 10.8 ppb (10) N/A 10.0 ppb (9) N/A N/A N/A 0.4 ppb (4) N/A 5.2 μg/m3 (22) 22.0
 
Jan. 21, 2020, 2 a.m. 17.6 ppb (16) 9.4 ppb (9) N/A 8.0 ppb (7) N/A N/A N/A 0.4 ppb (4) N/A 5.2 μg/m3 (22) 22.0
 
Jan. 21, 2020, 1 a.m. 12.4 ppb (11) 6.0 ppb (6) N/A 7.0 ppb (6) N/A N/A N/A 0.3 ppb (3) N/A 4.8 μg/m3 (20) 20.0
 
Jan. 21, 2020, midnight 16.3 ppb (15) 7.9 ppb (7) N/A 8.0 ppb (7) N/A N/A N/A 0.4 ppb (4) N/A 5.1 μg/m3 (21) 21.0
 
Jan. 20, 2020, 11 p.m. 18.6 ppb (17) 8.4 ppb (8) N/A 10.0 ppb (9) N/A N/A N/A 0.3 ppb (3) N/A 5.4 μg/m3 (23) 23.0
 
Jan. 20, 2020, 10 p.m. 21.3 ppb (20) 11.2 ppb (10) N/A 10.0 ppb (9) N/A N/A N/A 0.3 ppb (3) N/A 5.3 μg/m3 (22) 22.0
 
Jan. 20, 2020, 9 p.m. 31.8 ppb (29) 18.4 ppb (17) N/A 13.0 ppb (12) N/A N/A N/A 0.4 ppb (4) N/A 5.7 μg/m3 (24) 29.0
 
Jan. 20, 2020, 8 p.m. 29.0 ppb (27) 17.4 ppb (16) N/A 12.0 ppb (11) N/A N/A N/A 0.3 ppb (3) N/A 5.9 μg/m3 (25) 27.0
 
Jan. 20, 2020, 7 p.m. 32.8 ppb (30) 22.2 ppb (21) N/A 11.0 ppb (10) N/A N/A N/A 0.4 ppb (4) N/A 6.2 μg/m3 (26) 30.0
 
Jan. 20, 2020, 6 p.m. 31.4 ppb (29) 21.8 ppb (20) N/A 10.0 ppb (9) N/A N/A N/A 0.4 ppb (4) N/A 6.3 μg/m3 (26) 29.0
 
Jan. 20, 2020, 5 p.m. 37.0 ppb (34) 25.7 ppb (24) N/A 11.0 ppb (10) N/A N/A N/A 0.4 ppb (4) N/A 6.3 μg/m3 (26) 34.0
 
Jan. 20, 2020, 4 p.m. 38.0 ppb (35) 25.6 ppb (24) N/A 12.0 ppb (11) N/A N/A N/A 0.4 ppb (4) N/A 6.5 μg/m3 (27) 35.0
 
Jan. 20, 2020, 3 p.m. 47.3 ppb (44) 32.1 ppb (30) N/A 15.0 ppb (14) N/A N/A N/A 0.5 ppb (6) N/A 6.8 μg/m3 (28) 44.0
 
Jan. 20, 2020, 2 p.m. 49.2 ppb (46) 33.0 ppb (31) N/A 16.0 ppb (15) N/A N/A N/A 0.5 ppb (6) N/A 7.0 μg/m3 (29) 46.0
 
Jan. 20, 2020, 1 p.m. 40.7 ppb (38) 25.4 ppb (24) N/A 15.0 ppb (14) N/A N/A N/A 0.4 ppb (4) N/A 6.8 μg/m3 (28) 38.0
 
Jan. 20, 2020, noon 34.3 ppb (32) 17.9 ppb (17) N/A 16.0 ppb (15) N/A N/A N/A 0.4 ppb (4) N/A 6.1 μg/m3 (25) 32.0
 
Jan. 20, 2020, 11 a.m. 25.4 ppb (24) 13.0 ppb (12) N/A 12.0 ppb (11) N/A N/A N/A 0.3 ppb (3) N/A 5.8 μg/m3 (24) 24.0
 
Jan. 20, 2020, 10 a.m. 19.3 ppb (18) 10.2 ppb (9) N/A 9.0 ppb (8) N/A N/A N/A 0.3 ppb (3) N/A 5.5 μg/m3 (23) 23.0
 
Jan. 20, 2020, 9 a.m. 11.2 ppb (10) 5.0 ppb (5) N/A 6.0 ppb (6) N/A N/A N/A 0.2 ppb (2) N/A 5.3 μg/m3 (22) 22.0
 
Jan. 20, 2020, 8 a.m. 9.8 ppb (9) 4.0 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A 0.3 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 20, 2020, 7 a.m. 8.1 ppb (8) 3.7 ppb (3) N/A 4.0 ppb (4) N/A N/A N/A 0.3 ppb (3) N/A 4.6 μg/m3 (19) 19.0
 
Jan. 20, 2020, 6 a.m. 7.9 ppb (7) 3.9 ppb (4) N/A 4.0 ppb (4) N/A N/A N/A 0.3 ppb (3) N/A 4.2 μg/m3 (18) 18.0
 
Jan. 20, 2020, 5 a.m. 8.7 ppb (8) 4.5 ppb (4) N/A 4.0 ppb (4) N/A N/A N/A 0.3 ppb (3) N/A 2.4 μg/m3 (10) 10.0
 
Jan. 20, 2020, 4 a.m. 8.9 ppb (8) 4.7 ppb (4) N/A 4.0 ppb (4) N/A N/A N/A 0.3 ppb (3) N/A 2.9 μg/m3 (12) 12.0
 
Jan. 20, 2020, 3 a.m. 9.9 ppb (9) 5.5 ppb (5) N/A 4.0 ppb (4) N/A N/A N/A 0.3 ppb (3) N/A 2.6 μg/m3 (11) 11.0
 
Jan. 20, 2020, 2 a.m. 9.7 ppb (9) 4.3 ppb (4) N/A 5.0 ppb (5) N/A N/A N/A 0.3 ppb (3) N/A 2.4 μg/m3 (10) 10.0
 
Jan. 20, 2020, 1 a.m. 8.7 ppb (8) 3.4 ppb (3) N/A 5.0 ppb (5) N/A N/A N/A 0.3 ppb (3) N/A 2.2 μg/m3 (9) 9.0
 
Jan. 20, 2020, midnight 15.7 ppb (15) 9.6 ppb (9) N/A 6.0 ppb (6) N/A N/A N/A 0.3 ppb (3) N/A 3.5 μg/m3 (15) 15.0
 
Jan. 19, 2020, 11 p.m. 17.2 ppb (16) 9.5 ppb (9) N/A 8.0 ppb (7) N/A N/A N/A 0.4 ppb (4) N/A 2.1 μg/m3 (9) 16.0
 
Jan. 19, 2020, 10 p.m. 25.6 ppb (24) 14.2 ppb (13) N/A 11.0 ppb (10) N/A N/A N/A 0.5 ppb (6) N/A 1.8 μg/m3 (8) 24.0
 
Jan. 19, 2020, 9 p.m. 21.4 ppb (20) 12.1 ppb (11) N/A 9.0 ppb (8) N/A N/A N/A 0.3 ppb (3) N/A 1.3 μg/m3 (5) 20.0
 
Jan. 19, 2020, 8 p.m. 21.8 ppb (20) 13.9 ppb (13) N/A 8.0 ppb (7) N/A N/A N/A 0.3 ppb (3) N/A 1.4 μg/m3 (6) 20.0
 
Jan. 19, 2020, 7 p.m. 17.2 ppb (16) 10.3 ppb (10) N/A 7.0 ppb (6) N/A N/A N/A 0.3 ppb (3) N/A 1.2 μg/m3 (5) 16.0
 
Jan. 19, 2020, 6 p.m. 14.1 ppb (13) 9.8 ppb (9) N/A 4.0 ppb (4) N/A N/A N/A 0.3 ppb (3) N/A 1.2 μg/m3 (5) 13.0
 
Jan. 19, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (3) N/A 1.1 μg/m3 (5) 5.0
 
Jan. 19, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (3) N/A 1.1 μg/m3 (5) 5.0
 
Jan. 19, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (3) N/A 1.2 μg/m3 (5) 5.0
 
Jan. 19, 2020, 2 p.m. 12.7 ppb (12) 7.4 ppb (7) N/A 5.0 ppb (5) N/A N/A N/A 0.3 ppb (3) N/A 1.1 μg/m3 (5) 12.0
 
Jan. 19, 2020, 1 p.m. 8.7 ppb (8) 4.5 ppb (4) N/A 4.0 ppb (4) N/A N/A N/A 0.2 ppb (2) N/A 0.9 μg/m3 (4) 8.0
 
Jan. 19, 2020, noon 9.4 ppb (9) 5.1 ppb (5) N/A 4.0 ppb (4) N/A N/A N/A 0.2 ppb (2) N/A 1.4 μg/m3 (6) 9.0
 
Jan. 19, 2020, 11 a.m. 11.3 ppb (10) 5.3 ppb (5) N/A 6.0 ppb (6) N/A N/A N/A 0.2 ppb (2) N/A 2.2 μg/m3 (9) 10.0
 
Jan. 19, 2020, 10 a.m. 6.2 ppb (6) 2.2 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A 0.2 ppb (2) N/A 2.8 μg/m3 (12) 12.0
 
Jan. 19, 2020, 9 a.m. 10.0 ppb (9) 3.8 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 3.4 μg/m3 (14) 14.0
 
Jan. 19, 2020, 8 a.m. 23.4 ppb (22) 10.8 ppb (10) N/A 13.0 ppb (12) N/A N/A N/A N/A N/A 3.9 μg/m3 (16) 22.0
 
Jan. 19, 2020, 7 a.m. 38.4 ppb (36) 19.8 ppb (18) N/A 19.0 ppb (18) N/A N/A N/A N/A N/A 5.6 μg/m3 (23) 36.0
 
Jan. 19, 2020, 6 a.m. 59.2 ppb (56) 36.6 ppb (34) N/A 22.0 ppb (20) N/A N/A N/A 1.1 ppb (12) N/A 6.6 μg/m3 (28) 56.0
 
Jan. 19, 2020, 5 a.m. 57.7 ppb (54) 35.4 ppb (33) N/A 22.0 ppb (20) N/A N/A N/A 1.0 ppb (11) N/A 3.4 μg/m3 (14) 54.0
 
Jan. 19, 2020, 4 a.m. 60.2 ppb (57) 39.4 ppb (36) N/A 21.0 ppb (19) N/A N/A N/A 1.0 ppb (11) N/A 5.7 μg/m3 (24) 57.0
 
Jan. 19, 2020, 3 a.m. 54.3 ppb (50) 34.4 ppb (32) N/A 20.0 ppb (19) N/A N/A N/A 0.9 ppb (10) N/A 7.4 μg/m3 (31) 50.0
 
Jan. 19, 2020, 2 a.m. 63.3 ppb (60) 40.8 ppb (38) N/A 22.0 ppb (20) N/A N/A N/A 1.0 ppb (11) N/A 11.3 μg/m3 (47) 60.0
 
Jan. 19, 2020, 1 a.m. 54.6 ppb (51) 32.6 ppb (30) N/A 22.0 ppb (20) N/A N/A N/A 1.0 ppb (11) N/A 13.4 μg/m3 (53) 53.0
 
Jan. 19, 2020, midnight 53.9 ppb (50) 32.5 ppb (30) N/A 21.0 ppb (19) N/A N/A N/A 1.0 ppb (11) N/A 14.8 μg/m3 (56) 56.0
 
Jan. 18, 2020, 11 p.m. 53.4 ppb (49) 30.2 ppb (28) N/A 23.0 ppb (21) N/A N/A N/A 0.9 ppb (10) N/A 9.6 μg/m3 (40) 49.0
 
Jan. 18, 2020, 10 p.m. 71.7 ppb (69) 47.4 ppb (44) N/A 24.0 ppb (22) N/A N/A N/A 1.1 ppb (12) N/A 7.3 μg/m3 (30) 69.0
 
Jan. 18, 2020, 9 p.m. 60.0 ppb (56) 38.6 ppb (36) N/A 21.0 ppb (19) N/A N/A N/A 1.0 ppb (11) N/A 6.6 μg/m3 (28) 56.0
 
Jan. 18, 2020, 8 p.m. 72.0 ppb (69) 47.6 ppb (44) N/A 24.0 ppb (22) N/A N/A N/A 1.1 ppb (12) N/A 6.9 μg/m3 (29) 69.0
 
Jan. 18, 2020, 7 p.m. 53.5 ppb (50) 32.2 ppb (30) N/A 21.0 ppb (19) N/A N/A N/A 0.7 ppb (8) N/A 5.7 μg/m3 (24) 50.0
 
Jan. 18, 2020, 6 p.m. 69.6 ppb (67) 44.9 ppb (42) N/A 25.0 ppb (23) N/A N/A N/A 0.9 ppb (10) N/A 5.0 μg/m3 (21) 67.0
 
Jan. 18, 2020, 5 p.m. 56.4 ppb (53) 35.5 ppb (33) N/A 21.0 ppb (19) N/A N/A N/A 0.7 ppb (8) N/A 4.4 μg/m3 (18) 53.0
 
Jan. 18, 2020, 4 p.m. 57.9 ppb (54) 37.3 ppb (35) N/A 20.0 ppb (19) N/A N/A N/A 0.7 ppb (8) N/A 4.3 μg/m3 (18) 54.0
 
Jan. 18, 2020, 3 p.m. 53.7 ppb (50) 35.1 ppb (32) N/A 19.0 ppb (18) N/A N/A N/A 0.7 ppb (8) N/A 4.3 μg/m3 (18) 50.0
 
Jan. 18, 2020, 2 p.m. 47.6 ppb (44) 30.5 ppb (28) N/A 17.0 ppb (16) N/A N/A N/A 0.6 ppb (7) N/A 4.3 μg/m3 (18) 44.0
 
Jan. 18, 2020, 1 p.m. 45.6 ppb (42) 26.9 ppb (25) N/A 19.0 ppb (18) N/A N/A N/A 0.6 ppb (7) N/A 4.0 μg/m3 (17) 42.0
 
Jan. 18, 2020, noon 40.0 ppb (37) 23.7 ppb (22) N/A 16.0 ppb (15) N/A N/A N/A 0.5 ppb (6) N/A 4.0 μg/m3 (17) 37.0
 
Jan. 18, 2020, 11 a.m. 28.5 ppb (26) 16.2 ppb (15) N/A 12.0 ppb (11) N/A N/A N/A 0.4 ppb (4) N/A 4.1 μg/m3 (17) 26.0
 
Jan. 18, 2020, 10 a.m. 20.0 ppb (19) 10.3 ppb (10) N/A 10.0 ppb (9) N/A N/A N/A 0.3 ppb (3) N/A 4.4 μg/m3 (18) 19.0
 
Jan. 18, 2020, 9 a.m. 20.3 ppb (19) 11.2 ppb (10) N/A 9.0 ppb (8) N/A N/A N/A 0.4 ppb (4) N/A 4.3 μg/m3 (18) 19.0
 
Jan. 18, 2020, 8 a.m. 12.9 ppb (12) 6.8 ppb (6) N/A 6.0 ppb (6) N/A N/A N/A 0.4 ppb (4) N/A N/A 12.0
 
Jan. 18, 2020, 7 a.m. 13.9 ppb (13) 7.2 ppb (7) N/A 7.0 ppb (6) N/A N/A N/A 0.3 ppb (3) N/A N/A 13.0
 
Jan. 18, 2020, 6 a.m. 18.9 ppb (18) 10.0 ppb (9) N/A 9.0 ppb (8) N/A N/A N/A 0.5 ppb (6) N/A 3.6 μg/m3 (15) 18.0
 
Jan. 18, 2020, 5 a.m. 29.6 ppb (27) 15.5 ppb (14) N/A 14.0 ppb (13) N/A N/A N/A 0.6 ppb (7) N/A 2.1 μg/m3 (9) 27.0
 
Jan. 18, 2020, 4 a.m. 26.3 ppb (24) 14.3 ppb (13) N/A 12.0 ppb (11) N/A N/A N/A 0.5 ppb (6) N/A 3.2 μg/m3 (13) 24.0
 
Jan. 18, 2020, 3 a.m. 30.8 ppb (29) 16.5 ppb (15) N/A 14.0 ppb (13) N/A N/A N/A 0.6 ppb (7) N/A 3.3 μg/m3 (14) 29.0
 
Jan. 18, 2020, 2 a.m. 37.3 ppb (35) 20.2 ppb (19) N/A 17.0 ppb (16) N/A N/A N/A 0.7 ppb (8) N/A 3.7 μg/m3 (15) 35.0
 
Jan. 18, 2020, 1 a.m. 32.0 ppb (30) 17.1 ppb (16) N/A 15.0 ppb (14) N/A N/A N/A 0.5 ppb (6) N/A 3.1 μg/m3 (13) 30.0
 
Jan. 18, 2020, midnight 26.3 ppb (24) 10.6 ppb (10) N/A 16.0 ppb (15) N/A N/A N/A 0.4 ppb (4) N/A 3.4 μg/m3 (14) 24.0
 
Jan. 17, 2020, 11 p.m. 33.3 ppb (31) 16.8 ppb (16) N/A 17.0 ppb (16) N/A N/A N/A 0.4 ppb (4) N/A 2.6 μg/m3 (11) 31.0
 
Jan. 17, 2020, 10 p.m. 28.3 ppb (26) 15.7 ppb (15) N/A 13.0 ppb (12) N/A N/A N/A 0.4 ppb (4) N/A 2.8 μg/m3 (12) 26.0
 
Jan. 17, 2020, 9 p.m. 30.3 ppb (28) 15.7 ppb (15) N/A 15.0 ppb (14) N/A N/A N/A 0.4 ppb (4) N/A 2.7 μg/m3 (11) 28.0
 
Jan. 17, 2020, 8 p.m. 57.7 ppb (54) 36.6 ppb (34) N/A 21.0 ppb (19) N/A N/A N/A 0.5 ppb (6) N/A 2.8 μg/m3 (12) 54.0
 
Jan. 17, 2020, 7 p.m. 56.7 ppb (53) 36.0 ppb (33) N/A 21.0 ppb (19) N/A N/A N/A 0.5 ppb (6) N/A 2.8 μg/m3 (12) 53.0
 
Jan. 17, 2020, 6 p.m. 50.0 ppb (46) 32.4 ppb (30) N/A 18.0 ppb (17) N/A N/A N/A 0.5 ppb (6) N/A 2.8 μg/m3 (12) 46.0
 
Jan. 17, 2020, 5 p.m. 59.7 ppb (56) 37.3 ppb (35) N/A 22.0 ppb (20) N/A N/A N/A 0.5 ppb (6) N/A 3.3 μg/m3 (14) 56.0
 
Jan. 17, 2020, 4 p.m. 65.1 ppb (62) 42.9 ppb (40) N/A 22.0 ppb (20) N/A N/A N/A 0.5 ppb (6) N/A 2.8 μg/m3 (12) 62.0
 
Jan. 17, 2020, 3 p.m. 87.4 ppb (86) 59.7 ppb (56) N/A 28.0 ppb (26) N/A N/A N/A 0.6 ppb (7) N/A 3.3 μg/m3 (14) 86.0
 
Jan. 17, 2020, 2 p.m. 104.0 ppb (101) 73.3 ppb (71) N/A 30.0 ppb (28) N/A N/A N/A 0.9 ppb (10) N/A N/A 101.0
 
Jan. 17, 2020, 1 p.m. 46.1 ppb (43) 23.8 ppb (22) N/A 22.0 ppb (20) N/A N/A N/A 0.5 ppb (6) N/A 3.0 μg/m3 (12) 43.0
 
Jan. 17, 2020, noon 20.0 ppb (19) 7.1 ppb (7) N/A 13.0 ppb (12) N/A N/A N/A 0.3 ppb (3) N/A 2.3 μg/m3 (10) 19.0
 
Jan. 17, 2020, 11 a.m. 24.2 ppb (22) 10.7 ppb (10) N/A 14.0 ppb (13) N/A N/A N/A 0.3 ppb (3) N/A 2.1 μg/m3 (9) 22.0
 
Jan. 17, 2020, 10 a.m. 29.8 ppb (28) 14.0 ppb (13) N/A 16.0 ppb (15) N/A N/A N/A 0.3 ppb (3) N/A 2.2 μg/m3 (9) 28.0
 
Jan. 17, 2020, 9 a.m. 17.5 ppb (16) 8.3 ppb (8) N/A 9.0 ppb (8) N/A N/A N/A 0.3 ppb (3) N/A 2.0 μg/m3 (8) 16.0
 
Jan. 17, 2020, 8 a.m. 19.0 ppb (18) 8.2 ppb (8) N/A 11.0 ppb (10) N/A N/A N/A 0.3 ppb (3) N/A 2.1 μg/m3 (9) 18.0
 
Jan. 17, 2020, 7 a.m. 14.1 ppb (13) 5.5 ppb (5) N/A 9.0 ppb (8) N/A N/A N/A 0.3 ppb (3) N/A 2.1 μg/m3 (9) 13.0
 
Jan. 17, 2020, 6 a.m. 19.8 ppb (18) 9.2 ppb (9) N/A 11.0 ppb (10) N/A N/A N/A 0.3 ppb (3) N/A 2.3 μg/m3 (10) 18.0
 
Jan. 17, 2020, 5 a.m. 15.1 ppb (14) 6.3 ppb (6) N/A 9.0 ppb (8) N/A N/A N/A 0.4 ppb (4) N/A 1.5 μg/m3 (6) 14.0
 
Jan. 17, 2020, 4 a.m. 23.3 ppb (22) 11.7 ppb (11) N/A 12.0 ppb (11) N/A N/A N/A 0.4 ppb (4) N/A 2.6 μg/m3 (11) 22.0
 
Jan. 17, 2020, 3 a.m. 19.1 ppb (18) 9.0 ppb (8) N/A 10.0 ppb (9) N/A N/A N/A 0.4 ppb (4) N/A 2.8 μg/m3 (12) 18.0
 
Jan. 17, 2020, 2 a.m. 18.4 ppb (17) 9.3 ppb (9) N/A 9.0 ppb (8) N/A N/A N/A 0.4 ppb (4) N/A 3.1 μg/m3 (13) 17.0
 
Jan. 17, 2020, 1 a.m. 17.8 ppb (16) 8.4 ppb (8) N/A 9.0 ppb (8) N/A N/A N/A 0.4 ppb (4) N/A 3.3 μg/m3 (14) 16.0
 
Jan. 17, 2020, midnight 15.8 ppb (15) 6.9 ppb (6) N/A 9.0 ppb (8) N/A N/A N/A 0.3 ppb (3) N/A 3.6 μg/m3 (15) 15.0
 
Jan. 16, 2020, 11 p.m. 17.1 ppb (16) 7.2 ppb (7) N/A 10.0 ppb (9) N/A N/A N/A 0.3 ppb (3) N/A 3.6 μg/m3 (15) 16.0
 
Jan. 16, 2020, 10 p.m. 15.3 ppb (14) 6.1 ppb (6) N/A 9.0 ppb (8) N/A N/A N/A 0.3 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 16, 2020, 9 p.m. 23.4 ppb (22) 12.4 ppb (11) N/A 11.0 ppb (10) N/A N/A N/A 0.4 ppb (4) N/A 4.3 μg/m3 (18) 22.0
 
Jan. 16, 2020, 8 p.m. 28.0 ppb (26) 15.3 ppb (14) N/A 13.0 ppb (12) N/A N/A N/A 0.4 ppb (4) N/A 4.5 μg/m3 (19) 26.0
 
Jan. 16, 2020, 7 p.m. 30.9 ppb (29) 19.8 ppb (18) N/A 11.0 ppb (10) N/A N/A N/A 0.4 ppb (4) N/A 3.8 μg/m3 (16) 29.0
 
Jan. 16, 2020, 6 p.m. 28.3 ppb (26) 17.2 ppb (16) N/A 11.0 ppb (10) N/A N/A N/A 0.4 ppb (4) N/A 3.6 μg/m3 (15) 26.0
 
Jan. 16, 2020, 5 p.m. 29.6 ppb (27) 19.1 ppb (18) N/A 11.0 ppb (10) N/A N/A N/A 0.4 ppb (4) N/A 3.7 μg/m3 (15) 27.0
 
Jan. 16, 2020, 4 p.m. 29.7 ppb (28) 17.6 ppb (16) N/A 12.0 ppb (11) N/A N/A N/A 0.4 ppb (4) N/A N/A 28.0
 
Jan. 16, 2020, 3 p.m. 27.5 ppb (25) 17.2 ppb (16) N/A 10.0 ppb (9) N/A N/A N/A 0.3 ppb (3) N/A N/A 25.0
 
Jan. 16, 2020, 2 p.m. 22.5 ppb (21) 13.3 ppb (12) N/A 9.0 ppb (8) N/A N/A N/A 0.3 ppb (3) N/A N/A 21.0
 
Jan. 16, 2020, 1 p.m. 24.6 ppb (23) 13.4 ppb (12) N/A 11.0 ppb (10) N/A N/A N/A 0.4 ppb (4) N/A N/A 23.0
 
Jan. 16, 2020, noon 38.5 ppb (36) 24.1 ppb (22) N/A 14.0 ppb (13) N/A N/A N/A 0.5 ppb (6) N/A N/A 36.0
 
Jan. 16, 2020, 11 a.m. 42.1 ppb (39) 25.4 ppb (24) N/A 17.0 ppb (16) N/A N/A N/A 0.5 ppb (6) N/A N/A 39.0
 
Jan. 16, 2020, 10 a.m. 30.7 ppb (28) 16.7 ppb (15) N/A 14.0 ppb (13) N/A N/A N/A 0.4 ppb (4) N/A N/A 28.0
 
Jan. 16, 2020, 9 a.m. 48.1 ppb (45) 29.5 ppb (27) N/A 19.0 ppb (18) N/A N/A N/A 0.4 ppb (4) N/A N/A 45.0
 
Jan. 16, 2020, 8 a.m. 30.6 ppb (28) 16.7 ppb (15) N/A 14.0 ppb (13) N/A N/A N/A 0.3 ppb (3) N/A N/A 28.0
 
Jan. 16, 2020, 7 a.m. 15.9 ppb (15) 9.5 ppb (9) N/A 6.0 ppb (6) N/A N/A N/A 0.2 ppb (2) N/A N/A 15.0
 
Jan. 16, 2020, 6 a.m. 13.5 ppb (12) 9.2 ppb (9) N/A 4.0 ppb (4) N/A N/A N/A 0.3 ppb (3) N/A N/A 12.0
 
Jan. 16, 2020, 5 a.m. 17.1 ppb (16) 11.8 ppb (11) N/A 5.0 ppb (5) N/A N/A N/A 0.4 ppb (4) N/A N/A 16.0
 
Jan. 16, 2020, 4 a.m. 19.1 ppb (18) 13.0 ppb (12) N/A 6.0 ppb (6) N/A N/A N/A 0.5 ppb (6) N/A N/A 18.0
 
Jan. 16, 2020, 3 a.m. 26.7 ppb (25) 17.9 ppb (17) N/A 9.0 ppb (8) N/A N/A N/A 0.6 ppb (7) N/A N/A 25.0
 
Jan. 16, 2020, 2 a.m. 18.2 ppb (17) 9.8 ppb (9) N/A 8.0 ppb (7) N/A N/A N/A 0.4 ppb (4) N/A N/A 17.0
 
Jan. 16, 2020, 1 a.m. 21.5 ppb (20) 11.5 ppb (11) N/A 10.0 ppb (9) N/A N/A N/A 0.5 ppb (6) N/A N/A 20.0
 
Jan. 16, 2020, midnight 12.1 ppb (11) 4.6 ppb (4) N/A 8.0 ppb (7) N/A N/A N/A 0.4 ppb (4) N/A N/A 11.0
 
Jan. 15, 2020, 11 p.m. 8.8 ppb (8) 2.6 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A 0.2 ppb (2) N/A N/A 8.0
 
Jan. 15, 2020, 10 p.m. 8.3 ppb (8) 2.8 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A 0.3 ppb (3) N/A N/A 8.0
 
Jan. 15, 2020, 9 p.m. 9.8 ppb (9) 5.0 ppb (5) N/A 5.0 ppb (5) N/A N/A N/A 0.3 ppb (3) N/A N/A 9.0
 
Jan. 15, 2020, 8 p.m. 15.9 ppb (15) 9.6 ppb (9) N/A 6.0 ppb (6) N/A N/A N/A 0.3 ppb (3) N/A 1.3 μg/m3 (5) 15.0
 
Jan. 15, 2020, 7 p.m. 24.0 ppb (22) 14.1 ppb (13) N/A 10.0 ppb (9) N/A N/A N/A 0.4 ppb (4) N/A 2.1 μg/m3 (9) 22.0
 
Jan. 15, 2020, 6 p.m. 25.4 ppb (24) 13.4 ppb (12) N/A 12.0 ppb (11) N/A N/A N/A 0.4 ppb (4) N/A 1.4 μg/m3 (6) 24.0
 
Jan. 15, 2020, 5 p.m. 51.3 ppb (48) 28.5 ppb (26) N/A 23.0 ppb (21) N/A N/A N/A 0.6 ppb (7) N/A 2.6 μg/m3 (11) 48.0
 
Jan. 15, 2020, 4 p.m. 97.3 ppb (96) 68.5 ppb (65) N/A 29.0 ppb (27) N/A N/A N/A 1.0 ppb (11) N/A 4.5 μg/m3 (19) 96.0
 
Jan. 15, 2020, 3 p.m. 163.2 ppb (112) 128.0 ppb (105) N/A 35.0 ppb (32) N/A N/A N/A 1.5 ppb (17) N/A 6.0 μg/m3 (25) 112.0
 
Jan. 15, 2020, 2 p.m. 55.7 ppb (52) 26.1 ppb (24) N/A 30.0 ppb (28) N/A N/A N/A 0.7 ppb (8) N/A 3.8 μg/m3 (16) 52.0
 
Jan. 15, 2020, 1 p.m. 44.5 ppb (41) 19.4 ppb (18) N/A 25.0 ppb (23) N/A N/A N/A 0.6 ppb (7) N/A 2.1 μg/m3 (9) 41.0
 
Jan. 15, 2020, noon 41.4 ppb (38) 18.6 ppb (17) N/A 23.0 ppb (21) N/A N/A N/A 0.6 ppb (7) N/A 3.5 μg/m3 (15) 38.0
 
Jan. 15, 2020, 11 a.m. 38.9 ppb (36) 21.4 ppb (20) N/A 18.0 ppb (17) N/A N/A N/A 0.5 ppb (6) N/A 2.0 μg/m3 (8) 36.0
 
Jan. 15, 2020, 10 a.m. 52.6 ppb (49) 33.6 ppb (31) N/A 19.0 ppb (18) N/A N/A N/A 0.6 ppb (7) N/A 1.4 μg/m3 (6) 49.0