AQSQID: 131210056

Site Name: Nr-Georgia Tech

Location: Atlanta (Georgia Tech), GA

Reporting: True, Located: True

Current AQI: 13.0

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
April 9, 2020, 1 a.m. 13.9 ppb (13) 6.8 ppb (6) N/A 7.0 ppb (6) N/A N/A N/A 0.4 ppb (4) N/A N/A 13.0
 
April 9, 2020, midnight 19.9 ppb (18) 9.8 ppb (9) N/A 10.0 ppb (9) N/A N/A N/A 0.5 ppb (6) N/A N/A 18.0
 
April 8, 2020, 11 p.m. 17.8 ppb (16) 8.9 ppb (8) N/A 9.0 ppb (8) N/A N/A N/A 0.6 ppb (7) N/A N/A 16.0
 
April 8, 2020, 10 p.m. 28.7 ppb (27) 16.8 ppb (16) N/A 12.0 ppb (11) N/A N/A N/A 0.6 ppb (7) N/A N/A 27.0
 
April 8, 2020, 9 p.m. 37.5 ppb (35) 21.6 ppb (20) N/A 16.0 ppb (15) N/A N/A N/A 0.7 ppb (8) N/A N/A 35.0
 
April 8, 2020, 8 p.m. 41.0 ppb (38) 24.7 ppb (23) N/A 16.0 ppb (15) N/A N/A N/A 0.6 ppb (7) N/A N/A 38.0
 
April 8, 2020, 7 p.m. 39.0 ppb (36) 24.4 ppb (23) N/A 15.0 ppb (14) N/A N/A N/A 0.7 ppb (8) N/A N/A 36.0
 
April 8, 2020, 6 p.m. 38.7 ppb (36) 23.9 ppb (22) N/A 15.0 ppb (14) N/A N/A N/A 0.6 ppb (7) N/A N/A 36.0
 
April 8, 2020, 5 p.m. 49.4 ppb (46) 33.8 ppb (31) N/A 15.0 ppb (14) N/A N/A N/A 0.7 ppb (8) N/A N/A 46.0
 
April 8, 2020, 4 p.m. 60.4 ppb (57) 41.7 ppb (39) N/A 19.0 ppb (18) N/A N/A N/A 0.7 ppb (8) N/A N/A 57.0
 
April 8, 2020, 3 p.m. 59.9 ppb (56) 42.5 ppb (39) N/A 17.0 ppb (16) N/A N/A N/A 0.5 ppb (6) N/A N/A 56.0
 
April 8, 2020, 2 p.m. 74.8 ppb (72) 57.1 ppb (53) N/A 18.0 ppb (17) N/A N/A N/A 0.6 ppb (7) N/A N/A 72.0
 
April 8, 2020, 1 p.m. 70.2 ppb (67) 54.1 ppb (50) N/A 16.0 ppb (15) N/A N/A N/A 0.6 ppb (7) N/A N/A 67.0
 
April 8, 2020, noon 65.3 ppb (62) 50.0 ppb (46) N/A 15.0 ppb (14) N/A N/A N/A 0.6 ppb (7) N/A 13.3 μg/m3 (53) 62.0
 
April 8, 2020, 11 a.m. 69.9 ppb (67) 51.5 ppb (48) N/A 18.0 ppb (17) N/A N/A N/A 0.7 ppb (8) N/A 13.0 μg/m3 (52) 67.0
 
April 8, 2020, 10 a.m. 41.8 ppb (39) 27.8 ppb (26) N/A 14.0 ppb (13) N/A N/A N/A 0.7 ppb (8) N/A 11.3 μg/m3 (47) 47.0
 
April 8, 2020, 9 a.m. 35.2 ppb (33) 17.8 ppb (16) N/A 17.0 ppb (16) N/A N/A N/A 0.4 ppb (4) N/A 9.5 μg/m3 (40) 40.0
 
April 8, 2020, 8 a.m. 24.9 ppb (23) 7.2 ppb (7) N/A 18.0 ppb (17) N/A N/A N/A 0.3 ppb (3) N/A 9.7 μg/m3 (40) 40.0
 
April 8, 2020, 7 a.m. 15.3 ppb (14) 3.1 ppb (3) N/A 12.0 ppb (11) N/A N/A N/A 0.3 ppb (3) N/A 8.3 μg/m3 (35) 35.0
 
April 8, 2020, 6 a.m. 12.1 ppb (11) 2.5 ppb (2) N/A 10.0 ppb (9) N/A N/A N/A 0.2 ppb (2) N/A 8.7 μg/m3 (36) 36.0
 
April 8, 2020, 5 a.m. 21.5 ppb (20) 5.2 ppb (5) N/A 16.0 ppb (15) N/A N/A N/A 0.3 ppb (3) N/A 6.2 μg/m3 (26) 26.0
 
April 8, 2020, 4 a.m. 18.3 ppb (17) 6.3 ppb (6) N/A 12.0 ppb (11) N/A N/A N/A 0.3 ppb (3) N/A 10.7 μg/m3 (45) 45.0
 
April 8, 2020, 3 a.m. 22.4 ppb (21) 8.3 ppb (8) N/A 14.0 ppb (13) N/A N/A N/A 0.4 ppb (4) N/A 10.7 μg/m3 (45) 45.0
 
April 8, 2020, 2 a.m. 20.3 ppb (19) 9.1 ppb (8) N/A 11.0 ppb (10) N/A N/A N/A 0.5 ppb (6) N/A 10.4 μg/m3 (43) 43.0
 
April 8, 2020, 1 a.m. 18.6 ppb (17) 8.2 ppb (8) N/A 11.0 ppb (10) N/A N/A N/A 0.5 ppb (6) N/A 9.6 μg/m3 (40) 40.0
 
April 8, 2020, midnight 19.4 ppb (18) 9.1 ppb (8) N/A 10.0 ppb (9) N/A N/A N/A 0.4 ppb (4) N/A 8.4 μg/m3 (35) 35.0
 
April 7, 2020, 11 p.m. 22.1 ppb (20) 11.5 ppb (11) N/A 11.0 ppb (10) N/A N/A N/A 0.5 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
April 7, 2020, 10 p.m. 29.8 ppb (28) 17.3 ppb (16) N/A 13.0 ppb (12) N/A N/A N/A 0.6 ppb (7) N/A 10.2 μg/m3 (42) 42.0
 
April 7, 2020, 9 p.m. 24.8 ppb (23) 13.3 ppb (12) N/A 12.0 ppb (11) N/A N/A N/A 0.6 ppb (7) N/A 10.4 μg/m3 (43) 43.0
 
April 7, 2020, 8 p.m. 33.1 ppb (31) 17.1 ppb (16) N/A 16.0 ppb (15) N/A N/A N/A 0.7 ppb (8) N/A 13.5 μg/m3 (53) 53.0
 
April 7, 2020, 7 p.m. 44.8 ppb (41) 26.4 ppb (24) N/A 18.0 ppb (17) N/A N/A N/A 0.8 ppb (9) N/A 15.7 μg/m3 (58) 58.0
 
April 7, 2020, 6 p.m. 29.7 ppb (28) 16.7 ppb (15) N/A 13.0 ppb (12) N/A N/A N/A 0.6 ppb (7) N/A 16.5 μg/m3 (60) 60.0
 
April 7, 2020, 5 p.m. 39.3 ppb (36) 21.4 ppb (20) N/A 18.0 ppb (17) N/A N/A N/A 0.5 ppb (6) N/A 16.3 μg/m3 (59) 59.0
 
April 7, 2020, 4 p.m. 46.0 ppb (43) 26.8 ppb (25) N/A 19.0 ppb (18) N/A N/A N/A 0.5 ppb (6) N/A 16.9 μg/m3 (60) 60.0
 
April 7, 2020, 3 p.m. 53.8 ppb (50) 31.7 ppb (29) N/A 22.0 ppb (20) N/A N/A N/A 0.5 ppb (6) N/A 19.5 μg/m3 (66) 66.0
 
April 7, 2020, 2 p.m. 51.4 ppb (48) 30.5 ppb (28) N/A 21.0 ppb (19) N/A N/A N/A 0.6 ppb (7) N/A 21.1 μg/m3 (69) 69.0
 
April 7, 2020, 1 p.m. 51.7 ppb (48) 31.6 ppb (29) N/A 20.0 ppb (19) N/A N/A N/A 0.6 ppb (7) N/A 22.1 μg/m3 (71) 71.0
 
April 7, 2020, noon 78.4 ppb (76) 52.6 ppb (49) N/A 26.0 ppb (24) N/A N/A N/A 0.8 ppb (9) N/A 21.3 μg/m3 (70) 76.0
 
April 7, 2020, 11 a.m. 82.3 ppb (80) 53.1 ppb (49) N/A 29.0 ppb (27) N/A N/A N/A 0.7 ppb (8) N/A 16.1 μg/m3 (59) 80.0
 
April 7, 2020, 10 a.m. 50.3 ppb (47) 27.0 ppb (25) N/A 23.0 ppb (21) N/A N/A N/A 0.6 ppb (7) N/A 19.2 μg/m3 (65) 65.0
 
April 7, 2020, 9 a.m. 40.7 ppb (38) 19.7 ppb (18) N/A 21.0 ppb (19) N/A N/A N/A 0.5 ppb (6) N/A 18.6 μg/m3 (64) 64.0
 
April 7, 2020, 8 a.m. 22.1 ppb (20) 7.8 ppb (7) N/A 14.0 ppb (13) N/A N/A N/A 0.4 ppb (4) N/A N/A 20.0
 
April 7, 2020, 7 a.m. 20.8 ppb (19) 6.3 ppb (6) N/A 15.0 ppb (14) N/A N/A N/A 0.3 ppb (3) N/A 19.5 μg/m3 (66) 66.0
 
April 7, 2020, 6 a.m. 19.7 ppb (18) 5.6 ppb (5) N/A 14.0 ppb (13) N/A N/A N/A 0.3 ppb (3) N/A 18.2 μg/m3 (63) 63.0
 
April 7, 2020, 5 a.m. 14.9 ppb (14) 4.5 ppb (4) N/A 10.0 ppb (9) N/A N/A N/A 0.3 ppb (3) N/A 10.9 μg/m3 (45) 45.0
 
April 7, 2020, 4 a.m. 13.4 ppb (12) 3.7 ppb (3) N/A 10.0 ppb (9) N/A N/A N/A 0.3 ppb (3) N/A 14.3 μg/m3 (55) 55.0
 
April 7, 2020, 3 a.m. 22.8 ppb (21) 7.0 ppb (6) N/A 16.0 ppb (15) N/A N/A N/A 0.4 ppb (4) N/A 14.4 μg/m3 (55) 55.0
 
April 7, 2020, 2 a.m. 23.8 ppb (22) 5.7 ppb (5) N/A 18.0 ppb (17) N/A N/A N/A 0.4 ppb (4) N/A 14.7 μg/m3 (56) 56.0
 
April 7, 2020, 1 a.m. 24.4 ppb (23) 7.5 ppb (7) N/A 17.0 ppb (16) N/A N/A N/A 0.6 ppb (7) N/A 13.5 μg/m3 (53) 53.0
 
April 7, 2020, midnight 25.4 ppb (24) 8.5 ppb (8) N/A 17.0 ppb (16) N/A N/A N/A 0.5 ppb (6) N/A 12.1 μg/m3 (50) 50.0
 
April 6, 2020, 11 p.m. 20.6 ppb (19) 7.6 ppb (7) N/A 13.0 ppb (12) N/A N/A N/A 0.6 ppb (7) N/A 9.9 μg/m3 (41) 41.0
 
April 6, 2020, 10 p.m. 27.6 ppb (26) 12.8 ppb (12) N/A 15.0 ppb (14) N/A N/A N/A 0.6 ppb (7) N/A 10.7 μg/m3 (45) 45.0
 
April 6, 2020, 9 p.m. 35.2 ppb (33) 16.3 ppb (15) N/A 19.0 ppb (18) N/A N/A N/A 0.7 ppb (8) N/A 10.4 μg/m3 (43) 43.0
 
April 6, 2020, 8 p.m. 40.9 ppb (38) 17.4 ppb (16) N/A 23.0 ppb (21) N/A N/A N/A 0.6 ppb (7) N/A 11.0 μg/m3 (46) 46.0
 
April 6, 2020, 7 p.m. 50.6 ppb (47) 26.7 ppb (25) N/A 24.0 ppb (22) N/A N/A N/A 0.8 ppb (9) N/A 10.8 μg/m3 (45) 47.0
 
April 6, 2020, 6 p.m. 41.8 ppb (39) 19.8 ppb (18) N/A 22.0 ppb (20) N/A N/A N/A 0.6 ppb (7) N/A 11.1 μg/m3 (46) 46.0
 
April 6, 2020, 5 p.m. 51.2 ppb (47) 24.4 ppb (23) N/A 27.0 ppb (25) N/A N/A N/A 0.6 ppb (7) N/A N/A 47.0
 
April 6, 2020, 4 p.m. 45.5 ppb (42) 23.3 ppb (22) N/A 22.0 ppb (20) N/A N/A N/A 0.6 ppb (7) N/A 14.3 μg/m3 (55) 55.0
 
April 6, 2020, 3 p.m. 39.5 ppb (37) 20.4 ppb (19) N/A 19.0 ppb (18) N/A N/A N/A 0.6 ppb (7) N/A N/A 37.0
 
April 6, 2020, 2 p.m. 64.0 ppb (61) 38.5 ppb (36) N/A 25.0 ppb (23) N/A N/A N/A 0.6 ppb (7) N/A N/A 61.0
 
April 6, 2020, 1 p.m. 63.8 ppb (60) 40.4 ppb (37) N/A 23.0 ppb (21) N/A N/A N/A 0.6 ppb (7) N/A N/A 60.0
 
April 6, 2020, noon 74.5 ppb (72) 47.7 ppb (44) N/A 27.0 ppb (25) N/A N/A N/A 0.7 ppb (8) N/A N/A 72.0
 
April 6, 2020, 11 a.m. 69.6 ppb (67) 42.4 ppb (39) N/A 27.0 ppb (25) N/A N/A N/A 0.7 ppb (8) N/A N/A 67.0
 
April 6, 2020, 10 a.m. 54.8 ppb (51) 30.1 ppb (28) N/A 25.0 ppb (23) N/A N/A N/A 0.7 ppb (8) N/A N/A 51.0
 
April 6, 2020, 9 a.m. 47.9 ppb (44) 22.5 ppb (21) N/A 25.0 ppb (23) N/A N/A N/A 0.5 ppb (6) N/A N/A 44.0
 
April 6, 2020, 8 a.m. 22.7 ppb (21) 8.9 ppb (8) N/A 14.0 ppb (13) N/A N/A N/A 0.3 ppb (3) N/A N/A 21.0
 
April 6, 2020, 7 a.m. 7.3 ppb (7) 1.9 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A 0.2 ppb (2) N/A N/A 7.0
 
April 6, 2020, 6 a.m. 5.6 ppb (5) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.3 ppb (3) N/A N/A 5.0
 
April 6, 2020, 5 a.m. 7.6 ppb (7) 1.7 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A 0.3 ppb (3) N/A N/A 7.0
 
April 6, 2020, 4 a.m. 9.3 ppb (9) 1.6 ppb (1) N/A 8.0 ppb (7) N/A N/A N/A 0.3 ppb (3) N/A N/A 9.0
 
April 6, 2020, 3 a.m. 12.8 ppb (12) 3.1 ppb (3) N/A 10.0 ppb (9) N/A N/A N/A 0.3 ppb (3) N/A N/A 12.0
 
April 6, 2020, 2 a.m. 12.3 ppb (11) 2.5 ppb (2) N/A 10.0 ppb (9) N/A N/A N/A 0.4 ppb (4) N/A N/A 11.0
 
April 6, 2020, 1 a.m. 31.9 ppb (30) 10.6 ppb (10) N/A 21.0 ppb (19) N/A N/A N/A 0.6 ppb (7) N/A N/A 30.0
 
April 6, 2020, midnight 37.5 ppb (35) 12.5 ppb (12) N/A 25.0 ppb (23) N/A N/A N/A 0.8 ppb (9) N/A N/A 35.0
 
April 5, 2020, 11 p.m. 22.0 ppb (20) 5.8 ppb (5) N/A 16.0 ppb (15) N/A N/A N/A 0.6 ppb (7) N/A N/A 20.0
 
April 5, 2020, 10 p.m. 18.0 ppb (17) 6.0 ppb (6) N/A 12.0 ppb (11) N/A N/A N/A 0.5 ppb (6) N/A N/A 17.0
 
April 5, 2020, 9 p.m. 17.2 ppb (16) 7.0 ppb (6) N/A 10.0 ppb (9) N/A N/A N/A 0.5 ppb (6) N/A N/A 16.0
 
April 5, 2020, 8 p.m. 17.5 ppb (16) 7.0 ppb (6) N/A 11.0 ppb (10) N/A N/A N/A 0.5 ppb (6) N/A N/A 16.0
 
April 5, 2020, 7 p.m. 19.5 ppb (18) 8.0 ppb (7) N/A 12.0 ppb (11) N/A N/A N/A 0.6 ppb (7) N/A N/A 18.0
 
April 5, 2020, 6 p.m. 10.3 ppb (10) 4.0 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A 0.5 ppb (6) N/A N/A 10.0
 
April 5, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) N/A N/A 7.0
 
April 5, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) N/A N/A 7.0
 
April 5, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) N/A N/A 7.0
 
April 5, 2020, 2 p.m. 32.9 ppb (30) 14.7 ppb (14) N/A 18.0 ppb (17) N/A N/A N/A 0.6 ppb (7) N/A N/A 30.0
 
April 5, 2020, 1 p.m. 33.9 ppb (31) 14.3 ppb (13) N/A 20.0 ppb (19) N/A N/A N/A 0.6 ppb (7) N/A N/A 31.0
 
April 5, 2020, noon 39.6 ppb (37) 18.7 ppb (17) N/A 21.0 ppb (19) N/A N/A N/A 0.6 ppb (7) N/A N/A 37.0
 
April 5, 2020, 11 a.m. 32.2 ppb (30) 11.2 ppb (10) N/A 21.0 ppb (19) N/A N/A N/A 0.6 ppb (7) N/A N/A 30.0
 
April 5, 2020, 10 a.m. 33.0 ppb (31) 9.7 ppb (9) N/A 23.0 ppb (21) N/A N/A N/A 0.6 ppb (7) N/A N/A 31.0
 
April 5, 2020, 9 a.m. 23.6 ppb (22) 7.8 ppb (7) N/A 16.0 ppb (15) N/A N/A N/A N/A N/A 14.0 μg/m3 (54) 54.0
 
April 5, 2020, 8 a.m. 11.6 ppb (11) 4.2 ppb (4) N/A 7.0 ppb (6) N/A N/A N/A N/A N/A 12.5 μg/m3 (51) 51.0
 
April 5, 2020, 7 a.m. 10.3 ppb (10) 4.3 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 14.2 μg/m3 (55) 55.0
 
April 5, 2020, 6 a.m. 24.6 ppb (23) 1.0 ppb (1) N/A 24.0 ppb (22) N/A N/A N/A 0.6 ppb (7) N/A 17.7 μg/m3 (62) 62.0
 
April 5, 2020, 5 a.m. 30.9 ppb (29) 2.5 ppb (2) N/A 28.0 ppb (26) N/A N/A N/A 0.6 ppb (7) N/A 11.3 μg/m3 (47) 47.0
 
April 5, 2020, 4 a.m. 32.9 ppb (30) 2.8 ppb (3) N/A 30.0 ppb (28) N/A N/A N/A 0.6 ppb (7) N/A 15.8 μg/m3 (58) 58.0
 
April 5, 2020, 3 a.m. 32.8 ppb (30) 2.9 ppb (3) N/A 30.0 ppb (28) N/A N/A N/A 0.5 ppb (6) N/A 13.0 μg/m3 (52) 52.0
 
April 5, 2020, 2 a.m. 31.5 ppb (29) 4.7 ppb (4) N/A 27.0 ppb (25) N/A N/A N/A 0.6 ppb (7) N/A 11.5 μg/m3 (48) 48.0
 
April 5, 2020, 1 a.m. 23.3 ppb (22) 4.8 ppb (4) N/A 19.0 ppb (18) N/A N/A N/A 0.5 ppb (6) N/A 8.3 μg/m3 (35) 35.0
 
April 5, 2020, midnight 39.9 ppb (37) 13.9 ppb (13) N/A 26.0 ppb (24) N/A N/A N/A 0.7 ppb (8) N/A 6.2 μg/m3 (26) 37.0
 
April 4, 2020, 11 p.m. 29.7 ppb (28) 9.2 ppb (9) N/A 20.0 ppb (19) N/A N/A N/A 0.8 ppb (9) N/A 5.2 μg/m3 (22) 28.0
 
April 4, 2020, 10 p.m. 29.6 ppb (27) 10.6 ppb (10) N/A 19.0 ppb (18) N/A N/A N/A 0.8 ppb (9) N/A 4.8 μg/m3 (20) 27.0
 
April 4, 2020, 9 p.m. 26.7 ppb (25) 11.2 ppb (10) N/A 16.0 ppb (15) N/A N/A N/A 0.6 ppb (7) N/A 4.8 μg/m3 (20) 25.0
 
April 4, 2020, 8 p.m. 16.0 ppb (15) 6.6 ppb (6) N/A 9.0 ppb (8) N/A N/A N/A 0.5 ppb (6) N/A 4.5 μg/m3 (19) 19.0
 
April 4, 2020, 7 p.m. 19.5 ppb (18) 8.6 ppb (8) N/A 11.0 ppb (10) N/A N/A N/A 0.5 ppb (6) N/A 4.2 μg/m3 (18) 18.0
 
April 4, 2020, 6 p.m. 29.6 ppb (27) 14.7 ppb (14) N/A 15.0 ppb (14) N/A N/A N/A 0.6 ppb (7) N/A 4.2 μg/m3 (18) 27.0
 
April 4, 2020, 5 p.m. 31.3 ppb (29) 14.7 ppb (14) N/A 17.0 ppb (16) N/A N/A N/A 0.6 ppb (7) N/A 4.1 μg/m3 (17) 29.0
 
April 4, 2020, 4 p.m. 35.7 ppb (33) 17.0 ppb (16) N/A 19.0 ppb (18) N/A N/A N/A 0.5 ppb (6) N/A 4.2 μg/m3 (18) 33.0
 
April 4, 2020, 3 p.m. 48.6 ppb (45) 26.2 ppb (24) N/A 22.0 ppb (20) N/A N/A N/A 0.6 ppb (7) N/A 7.5 μg/m3 (31) 45.0
 
April 4, 2020, 2 p.m. 59.4 ppb (56) 32.4 ppb (30) N/A 27.0 ppb (25) N/A N/A N/A 0.5 ppb (6) N/A 10.7 μg/m3 (45) 56.0
 
April 4, 2020, 1 p.m. 73.8 ppb (71) 42.1 ppb (39) N/A 32.0 ppb (30) N/A N/A N/A 0.6 ppb (7) N/A 11.4 μg/m3 (48) 71.0
 
April 4, 2020, noon 40.5 ppb (38) 20.1 ppb (19) N/A 20.0 ppb (19) N/A N/A N/A 0.5 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
April 4, 2020, 11 a.m. 40.1 ppb (37) 18.6 ppb (17) N/A 21.0 ppb (19) N/A N/A N/A 0.5 ppb (6) N/A 11.1 μg/m3 (46) 46.0
 
April 4, 2020, 10 a.m. 28.0 ppb (26) 12.1 ppb (11) N/A 16.0 ppb (15) N/A N/A N/A 0.5 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
April 4, 2020, 9 a.m. 20.3 ppb (19) 5.5 ppb (5) N/A 15.0 ppb (14) N/A N/A N/A 0.3 ppb (3) N/A 9.5 μg/m3 (40) 40.0
 
April 4, 2020, 8 a.m. 21.3 ppb (20) 3.9 ppb (4) N/A 17.0 ppb (16) N/A N/A N/A 0.3 ppb (3) N/A 8.8 μg/m3 (37) 37.0
 
April 4, 2020, 7 a.m. 20.8 ppb (19) 1.7 ppb (2) N/A 19.0 ppb (18) N/A N/A N/A 0.3 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
April 4, 2020, 6 a.m. 25.8 ppb (24) 2.3 ppb (2) N/A 24.0 ppb (22) N/A N/A N/A 0.3 ppb (3) N/A 11.4 μg/m3 (48) 48.0
 
April 4, 2020, 5 a.m. 32.9 ppb (30) 1.4 ppb (1) N/A 32.0 ppb (30) N/A N/A N/A 0.3 ppb (3) N/A 7.6 μg/m3 (32) 32.0
 
April 4, 2020, 4 a.m. 25.5 ppb (24) 1.4 ppb (1) N/A 24.0 ppb (22) N/A N/A N/A 0.3 ppb (3) N/A 7.7 μg/m3 (32) 32.0
 
April 4, 2020, 3 a.m. 28.4 ppb (26) 5.2 ppb (5) N/A 23.0 ppb (21) N/A N/A N/A 0.3 ppb (3) N/A 9.6 μg/m3 (40) 40.0
 
April 4, 2020, 2 a.m. 27.8 ppb (26) 4.2 ppb (4) N/A 24.0 ppb (22) N/A N/A N/A 0.4 ppb (4) N/A 6.9 μg/m3 (29) 29.0
 
April 4, 2020, 1 a.m. 22.5 ppb (21) 3.0 ppb (3) N/A 20.0 ppb (19) N/A N/A N/A 0.3 ppb (3) N/A 4.5 μg/m3 (19) 21.0
 
April 4, 2020, midnight 18.9 ppb (18) 4.5 ppb (4) N/A 15.0 ppb (14) N/A N/A N/A 0.3 ppb (3) N/A 3.6 μg/m3 (15) 18.0
 
April 3, 2020, 11 p.m. 33.7 ppb (31) 13.4 ppb (12) N/A 20.0 ppb (19) N/A N/A N/A 0.6 ppb (7) N/A 3.5 μg/m3 (15) 31.0
 
April 3, 2020, 10 p.m. 38.8 ppb (36) 16.2 ppb (15) N/A 23.0 ppb (21) N/A N/A N/A 0.6 ppb (7) N/A 3.7 μg/m3 (15) 36.0
 
April 3, 2020, 9 p.m. 36.0 ppb (33) 16.6 ppb (15) N/A 19.0 ppb (18) N/A N/A N/A 0.6 ppb (7) N/A 3.6 μg/m3 (15) 33.0
 
April 3, 2020, 8 p.m. 34.2 ppb (32) 16.6 ppb (15) N/A 18.0 ppb (17) N/A N/A N/A 0.6 ppb (7) N/A 4.1 μg/m3 (17) 32.0
 
April 3, 2020, 7 p.m. 49.1 ppb (45) 25.7 ppb (24) N/A 23.0 ppb (21) N/A N/A N/A 0.7 ppb (8) N/A 4.0 μg/m3 (17) 45.0
 
April 3, 2020, 6 p.m. 48.2 ppb (45) 25.2 ppb (23) N/A 23.0 ppb (21) N/A N/A N/A 0.5 ppb (6) N/A 4.1 μg/m3 (17) 45.0
 
April 3, 2020, 5 p.m. 54.1 ppb (50) 30.0 ppb (28) N/A 24.0 ppb (22) N/A N/A N/A 0.6 ppb (7) N/A 4.2 μg/m3 (18) 50.0
 
April 3, 2020, 4 p.m. 58.4 ppb (55) 34.2 ppb (32) N/A 24.0 ppb (22) N/A N/A N/A 0.5 ppb (6) N/A 3.8 μg/m3 (16) 55.0
 
April 3, 2020, 3 p.m. 68.9 ppb (66) 42.2 ppb (39) N/A 27.0 ppb (25) N/A N/A N/A 0.5 ppb (6) N/A 4.7 μg/m3 (20) 66.0
 
April 3, 2020, 2 p.m. 134.4 ppb (106) 96.6 ppb (95) N/A 38.0 ppb (35) N/A N/A N/A 0.8 ppb (9) N/A 6.0 μg/m3 (25) 106.0
 
April 3, 2020, 1 p.m. 109.0 ppb (102) 74.5 ppb (72) N/A 34.0 ppb (31) N/A N/A N/A 0.7 ppb (8) N/A 5.9 μg/m3 (25) 102.0
 
April 3, 2020, noon 80.8 ppb (79) 48.5 ppb (45) N/A 32.0 ppb (30) N/A N/A N/A 0.6 ppb (7) N/A 5.8 μg/m3 (24) 79.0
 
April 3, 2020, 11 a.m. 69.0 ppb (66) 36.8 ppb (34) N/A 32.0 ppb (30) N/A N/A N/A 0.5 ppb (6) N/A 5.6 μg/m3 (23) 66.0
 
April 3, 2020, 10 a.m. 65.4 ppb (62) 31.3 ppb (29) N/A 34.0 ppb (31) N/A N/A N/A 0.4 ppb (4) N/A 5.6 μg/m3 (23) 62.0
 
April 3, 2020, 9 a.m. 58.2 ppb (54) 23.7 ppb (22) N/A 34.0 ppb (31) N/A N/A N/A 0.3 ppb (3) N/A 5.2 μg/m3 (22) 54.0
 
April 3, 2020, 8 a.m. 29.3 ppb (27) 3.4 ppb (3) N/A 26.0 ppb (24) N/A N/A N/A 0.3 ppb (3) N/A 4.7 μg/m3 (20) 27.0
 
April 3, 2020, 7 a.m. 33.4 ppb (31) 5.4 ppb (5) N/A 28.0 ppb (26) N/A N/A N/A 0.3 ppb (3) N/A 4.3 μg/m3 (18) 31.0
 
April 3, 2020, 6 a.m. 24.9 ppb (23) 2.9 ppb (3) N/A 22.0 ppb (20) N/A N/A N/A 0.3 ppb (3) N/A 3.9 μg/m3 (16) 23.0
 
April 3, 2020, 5 a.m. 26.0 ppb (24) 1.6 ppb (1) N/A 24.0 ppb (22) N/A N/A N/A 0.3 ppb (3) N/A 2.5 μg/m3 (10) 24.0
 
April 3, 2020, 4 a.m. 19.5 ppb (18) 1.9 ppb (2) N/A 18.0 ppb (17) N/A N/A N/A 0.2 ppb (2) N/A 3.6 μg/m3 (15) 18.0
 
April 3, 2020, 3 a.m. 20.7 ppb (19) 1.7 ppb (2) N/A 19.0 ppb (18) N/A N/A N/A 0.3 ppb (3) N/A 3.7 μg/m3 (15) 19.0
 
April 3, 2020, 2 a.m. 30.1 ppb (28) 9.0 ppb (8) N/A 21.0 ppb (19) N/A N/A N/A 0.4 ppb (4) N/A 4.1 μg/m3 (17) 28.0
 
April 3, 2020, 1 a.m. 18.6 ppb (17) 4.6 ppb (4) N/A 14.0 ppb (13) N/A N/A N/A 0.4 ppb (4) N/A 3.9 μg/m3 (16) 17.0
 
April 3, 2020, midnight 18.7 ppb (17) 6.5 ppb (6) N/A 12.0 ppb (11) N/A N/A N/A 0.4 ppb (4) N/A 3.6 μg/m3 (15) 17.0
 
April 2, 2020, 11 p.m. 30.8 ppb (29) 13.5 ppb (12) N/A 17.0 ppb (16) N/A N/A N/A 0.6 ppb (7) N/A 3.5 μg/m3 (15) 29.0
 
April 2, 2020, 10 p.m. 32.5 ppb (30) 16.3 ppb (15) N/A 16.0 ppb (15) N/A N/A N/A 0.5 ppb (6) N/A 3.6 μg/m3 (15) 30.0
 
April 2, 2020, 9 p.m. 35.0 ppb (32) 17.8 ppb (16) N/A 17.0 ppb (16) N/A N/A N/A 0.6 ppb (7) N/A 4.1 μg/m3 (17) 32.0
 
April 2, 2020, 8 p.m. 33.2 ppb (31) 16.7 ppb (15) N/A 17.0 ppb (16) N/A N/A N/A 0.6 ppb (7) N/A 3.9 μg/m3 (16) 31.0
 
April 2, 2020, 7 p.m. 43.7 ppb (40) 24.5 ppb (23) N/A 19.0 ppb (18) N/A N/A N/A 0.6 ppb (7) N/A 4.7 μg/m3 (20) 40.0
 
April 2, 2020, 6 p.m. 52.0 ppb (48) 31.5 ppb (29) N/A 20.0 ppb (19) N/A N/A N/A 0.6 ppb (7) N/A 4.8 μg/m3 (20) 48.0
 
April 2, 2020, 5 p.m. 56.4 ppb (53) 36.6 ppb (34) N/A 20.0 ppb (19) N/A N/A N/A 0.5 ppb (6) N/A 5.8 μg/m3 (24) 53.0
 
April 2, 2020, 4 p.m. 41.9 ppb (39) 26.0 ppb (24) N/A 16.0 ppb (15) N/A N/A N/A 0.4 ppb (4) N/A 4.0 μg/m3 (17) 39.0
 
April 2, 2020, 3 p.m. 65.8 ppb (63) 42.5 ppb (39) N/A 23.0 ppb (21) N/A N/A N/A 0.5 ppb (6) N/A 4.1 μg/m3 (17) 63.0
 
April 2, 2020, 2 p.m. 71.9 ppb (69) 50.0 ppb (46) N/A 22.0 ppb (20) N/A N/A N/A 0.5 ppb (6) N/A 5.0 μg/m3 (21) 69.0
 
April 2, 2020, 1 p.m. 62.0 ppb (59) 40.5 ppb (38) N/A 21.0 ppb (19) N/A N/A N/A 0.5 ppb (6) N/A 5.5 μg/m3 (23) 59.0
 
April 2, 2020, noon 81.9 ppb (80) 58.0 ppb (54) N/A 24.0 ppb (22) N/A N/A N/A 0.5 ppb (6) N/A 5.8 μg/m3 (24) 80.0
 
April 2, 2020, 11 a.m. 55.8 ppb (52) 31.0 ppb (29) N/A 25.0 ppb (23) N/A N/A N/A 0.3 ppb (3) N/A 5.2 μg/m3 (22) 52.0
 
April 2, 2020, 10 a.m. 54.4 ppb (50) 31.2 ppb (29) N/A 23.0 ppb (21) N/A N/A N/A 0.4 ppb (4) N/A 4.6 μg/m3 (19) 50.0
 
April 2, 2020, 9 a.m. 25.9 ppb (24) 12.1 ppb (11) N/A 14.0 ppb (13) N/A N/A N/A 0.3 ppb (3) N/A 3.7 μg/m3 (15) 24.0
 
April 2, 2020, 8 a.m. 14.5 ppb (13) 4.2 ppb (4) N/A 10.0 ppb (9) N/A N/A N/A 0.2 ppb (2) N/A 3.3 μg/m3 (14) 14.0
 
April 2, 2020, 7 a.m. 11.2 ppb (10) 4.8 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A 0.2 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
April 2, 2020, 6 a.m. 4.1 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.2 ppb (2) N/A 2.7 μg/m3 (11) 11.0
 
April 2, 2020, 5 a.m. 8.3 ppb (8) 2.5 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A 0.2 ppb (2) N/A 1.8 μg/m3 (8) 8.0
 
April 2, 2020, 4 a.m. 7.4 ppb (7) 2.5 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A 0.2 ppb (2) N/A 2.8 μg/m3 (12) 12.0
 
April 2, 2020, 3 a.m. 7.1 ppb (7) 2.5 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A 0.2 ppb (2) N/A 2.9 μg/m3 (12) 12.0
 
April 2, 2020, 2 a.m. 7.0 ppb (6) 3.0 ppb (3) 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