AQSQID: 040132001

Site Name: Glendale Community College

Location: Glendale (The Citadel), AZ

Reporting: True, Located: True

Current AQI: 55.0

Glendale (The Citadel) AZ, US: 33.5694, -112.1915

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 25, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 19.0 μg/m3 (17) 14.2 μg/m3 (55) 55.0
 
Jan. 25, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 22.0 μg/m3 (20) 16.8 μg/m3 (60) 60.0
 
Jan. 25, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 32.0 μg/m3 (29) 24.1 μg/m3 (76) 76.0
 
Jan. 25, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 29.0 μg/m3 (26) 18.6 μg/m3 (64) 64.0
 
Jan. 25, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 33.0 μg/m3 (30) 21.6 μg/m3 (70) 70.0
 
Jan. 25, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 30.0 μg/m3 (27) 14.9 μg/m3 (56) 56.0
 
Jan. 25, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 23.0 μg/m3 (21) 7.8 μg/m3 (32) 32.0
 
Jan. 25, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A 20.0 μg/m3 (18) 7.1 μg/m3 (30) 30.0
 
Jan. 25, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A 19.0 μg/m3 (17) 7.2 μg/m3 (30) 30.0
 
Jan. 25, 2020, midnight N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 12.0 μg/m3 (11) 3.5 μg/m3 (15) 18.0
 
Jan. 24, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 12.0 μg/m3 (11) 4.9 μg/m3 (20) 22.0
 
Jan. 24, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 9.0 μg/m3 (8) 4.4 μg/m3 (18) 22.0
 
Jan. 24, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 6.0 μg/m3 (5) 2.5 μg/m3 (10) 22.0
 
Jan. 24, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 11.0 μg/m3 (10) 6.6 μg/m3 (28) 28.0
 
Jan. 24, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 14.0 μg/m3 (13) 6.3 μg/m3 (26) 26.0
 
Jan. 24, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 20.0 μg/m3 (18) 9.8 μg/m3 (41) 41.0
 
Jan. 24, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A 26.0 μg/m3 (24) 13.5 μg/m3 (53) 53.0
 
Jan. 24, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A 23.0 μg/m3 (21) 12.2 μg/m3 (50) 50.0
 
Jan. 24, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 20.0 μg/m3 (18) 9.0 μg/m3 (38) 38.0
 
Jan. 24, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 14.0 μg/m3 (13) 7.8 μg/m3 (32) 32.0
 
Jan. 24, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 4.0 μg/m3 (4) 3.3 μg/m3 (14) 14.0
 
Jan. 24, 2020, noon N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A 6.0 μg/m3 (5) 5.5 μg/m3 (23) 23.0
 
Jan. 24, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A 9.0 μg/m3 (8) 7.1 μg/m3 (30) 30.0
 
Jan. 24, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A 11.0 μg/m3 (10) 7.7 μg/m3 (32) 32.0
 
Jan. 24, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A 9.0 μg/m3 (8) 6.1 μg/m3 (25) 25.0
 
Jan. 24, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A 15.0 μg/m3 (14) 11.2 μg/m3 (47) 47.0
 
Jan. 24, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A 19.0 μg/m3 (17) 12.8 μg/m3 (52) 52.0
 
Jan. 24, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 23.0 μg/m3 (21) 14.9 μg/m3 (56) 56.0
 
Jan. 24, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 23.0 μg/m3 (21) 14.8 μg/m3 (56) 56.0
 
Jan. 24, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 22.0 μg/m3 (20) 11.3 μg/m3 (47) 47.0
 
Jan. 24, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 17.0 μg/m3 (15) 7.1 μg/m3 (30) 30.0
 
Jan. 24, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A 20.0 μg/m3 (18) 12.1 μg/m3 (50) 50.0
 
Jan. 24, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 13.0 μg/m3 (12) 7.4 μg/m3 (31) 31.0
 
Jan. 24, 2020, midnight N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 12.0 μg/m3 (11) 4.6 μg/m3 (19) 22.0
 
Jan. 23, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 15.0 μg/m3 (14) 6.8 μg/m3 (28) 28.0
 
Jan. 23, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 22.0 μg/m3 (20) 13.5 μg/m3 (53) 53.0
 
Jan. 23, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 23.0 μg/m3 (21) 14.9 μg/m3 (56) 56.0
 
Jan. 23, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 32.0 μg/m3 (29) 20.1 μg/m3 (67) 67.0
 
Jan. 23, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 31.0 μg/m3 (28) 17.5 μg/m3 (62) 62.0
 
Jan. 23, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 26.0 μg/m3 (24) 16.3 μg/m3 (59) 59.0
 
Jan. 23, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A 23.0 μg/m3 (21) 14.3 μg/m3 (55) 55.0
 
Jan. 23, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A 26.0 μg/m3 (24) 16.5 μg/m3 (60) 60.0
 
Jan. 23, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 18.0 μg/m3 (16) 10.4 μg/m3 (43) 43.0
 
Jan. 23, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 20.0 μg/m3 (18) 14.6 μg/m3 (56) 56.0
 
Jan. 23, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 17.0 μg/m3 (15) 13.6 μg/m3 (53) 53.0
 
Jan. 23, 2020, noon N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 13.0 μg/m3 (12) 10.3 μg/m3 (43) 43.0
 
Jan. 23, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 15.0 μg/m3 (14) 11.7 μg/m3 (49) 49.0
 
Jan. 23, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 20.0 μg/m3 (18) 17.8 μg/m3 (62) 62.0
 
Jan. 23, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A 18.0 μg/m3 (16) 15.0 μg/m3 (56) 56.0
 
Jan. 23, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A 21.0 μg/m3 (19) 17.8 μg/m3 (62) 62.0
 
Jan. 23, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 21.0 μg/m3 (19) 16.4 μg/m3 (59) 59.0
 
Jan. 23, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 26.0 μg/m3 (24) 20.0 μg/m3 (67) 67.0
 
Jan. 23, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 23.0 μg/m3 (21) 17.1 μg/m3 (61) 61.0
 
Jan. 23, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 18.0 μg/m3 (16) 11.5 μg/m3 (48) 48.0
 
Jan. 23, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 15.0 μg/m3 (14) 8.9 μg/m3 (37) 37.0
 
Jan. 23, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A 13.0 μg/m3 (12) 6.7 μg/m3 (28) 28.0
 
Jan. 23, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 9.0 μg/m3 (8) 5.1 μg/m3 (21) 21.0
 
Jan. 23, 2020, midnight N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 12.0 μg/m3 (11) 10.2 μg/m3 (42) 42.0
 
Jan. 22, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 13.0 μg/m3 (12) 9.8 μg/m3 (41) 41.0
 
Jan. 22, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 16.0 μg/m3 (15) 11.0 μg/m3 (46) 46.0
 
Jan. 22, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 14.0 μg/m3 (13) 10.3 μg/m3 (43) 43.0
 
Jan. 22, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 11.0 μg/m3 (10) 8.7 μg/m3 (36) 36.0
 
Jan. 22, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 11.0 μg/m3 (10) 8.5 μg/m3 (35) 35.0
 
Jan. 22, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A N/A 16.0
 
Jan. 22, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A N/A 16.0
 
Jan. 22, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A N/A 15.0
 
Jan. 22, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 6.0 μg/m3 (25) 25.0
 
Jan. 22, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 3.0 μg/m3 (3) 1.9 μg/m3 (8) 18.0
 
Jan. 22, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 6.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
Jan. 22, 2020, noon N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 9.0 μg/m3 (8) 10.0 μg/m3 (42) 42.0
 
Jan. 22, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A 8.0 μg/m3 (7) 9.6 μg/m3 (40) 40.0
 
Jan. 22, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 6.0 μg/m3 (5) 4.8 μg/m3 (20) 20.0
 
Jan. 22, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 9.0 μg/m3 (8) 7.6 μg/m3 (32) 32.0
 
Jan. 22, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 6.0 μg/m3 (5) 4.4 μg/m3 (18) 18.0
 
Jan. 22, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 9.0 μg/m3 (8) 7.4 μg/m3 (31) 31.0
 
Jan. 22, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 8.0 μg/m3 (7) 6.5 μg/m3 (27) 27.0
 
Jan. 22, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 10.0 μg/m3 (9) 8.5 μg/m3 (35) 35.0
 
Jan. 22, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 8.0 μg/m3 (7) 7.2 μg/m3 (30) 30.0
 
Jan. 22, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 8.0 μg/m3 (7) 6.6 μg/m3 (28) 28.0
 
Jan. 22, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 9.0 μg/m3 (8) 8.3 μg/m3 (35) 35.0
 
Jan. 22, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 5.0 μg/m3 (5) 5.3 μg/m3 (22) 22.0
 
Jan. 22, 2020, midnight N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 3.0 μg/m3 (3) 3.9 μg/m3 (16) 20.0
 
Jan. 21, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 3.0 μg/m3 (3) 3.9 μg/m3 (16) 24.0
 
Jan. 21, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 7.0 μg/m3 (6) 8.3 μg/m3 (35) 35.0
 
Jan. 21, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 10.0 μg/m3 (9) 8.8 μg/m3 (37) 37.0
 
Jan. 21, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 9.0 μg/m3 (8) 7.6 μg/m3 (32) 32.0
 
Jan. 21, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 4.0 μg/m3 (4) 3.8 μg/m3 (16) 25.0
 
Jan. 21, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 2.0 μg/m3 (2) 2.4 μg/m3 (10) 25.0
 
Jan. 21, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 4.0 μg/m3 (4) 2.5 μg/m3 (10) 22.0
 
Jan. 21, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 6.0 μg/m3 (5) 4.2 μg/m3 (18) 18.0
 
Jan. 21, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A 8.0 μg/m3 (7) 6.3 μg/m3 (26) 26.0
 
Jan. 21, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) N/A 6.0 μg/m3 (5) 5.4 μg/m3 (23) 23.0
 
Jan. 21, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 6.0 μg/m3 (5) 3.9 μg/m3 (16) 16.0
 
Jan. 21, 2020, noon N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 10.0 μg/m3 (9) 6.1 μg/m3 (25) 25.0
 
Jan. 21, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 17.0 μg/m3 (15) 11.0 μg/m3 (46) 46.0
 
Jan. 21, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 20.0 μg/m3 (18) 10.4 μg/m3 (43) 43.0
 
Jan. 21, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 22.0 μg/m3 (20) 8.4 μg/m3 (35) 35.0
 
Jan. 21, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 29.0 μg/m3 (26) 13.6 μg/m3 (53) 53.0
 
Jan. 21, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A 24.0 μg/m3 (22) 12.0 μg/m3 (50) 50.0
 
Jan. 21, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A 29.0 μg/m3 (26) 15.4 μg/m3 (57) 57.0
 
Jan. 21, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 31.0 μg/m3 (28) 16.3 μg/m3 (59) 59.0
 
Jan. 21, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 29.0 μg/m3 (26) 10.4 μg/m3 (43) 43.0
 
Jan. 21, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 37.0 μg/m3 (34) 13.1 μg/m3 (52) 52.0
 
Jan. 21, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 35.0 μg/m3 (32) 9.3 μg/m3 (39) 39.0
 
Jan. 21, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A 30.0 μg/m3 (27) 5.9 μg/m3 (25) 27.0
 
Jan. 21, 2020, midnight N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 29.0 μg/m3 (26) 6.4 μg/m3 (27) 27.0
 
Jan. 20, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 26.0 μg/m3 (24) 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 13.0 μg/m3 (12) 2.4 μg/m3 (10) 26.0
 
Jan. 20, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 11.0 μg/m3 (10) 1.6 μg/m3 (7) 30.0
 
Jan. 20, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 11.0 μg/m3 (10) 2.3 μg/m3 (10) 31.0
 
Jan. 20, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 8.0 μg/m3 (7) 0.1 μg/m3 (0) 31.0
 
Jan. 20, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 11.0 μg/m3 (10) 2.1 μg/m3 (9) 29.0
 
Jan. 20, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 21.0 μg/m3 (19) 7.5 μg/m3 (31) 31.0
 
Jan. 20, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A 17.0 μg/m3 (15) 3.9 μg/m3 (16) 16.0
 
Jan. 20, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A 9.0 μg/m3 (8) 1.9 μg/m3 (8) 8.0
 
Jan. 20, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) N/A 7.0 μg/m3 (6) 2.7 μg/m3 (11) 11.0
 
Jan. 20, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 7.0 μg/m3 (6) 4.1 μg/m3 (17) 17.0
 
Jan. 20, 2020, noon N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 0.0 μg/m3 (0) -1.3 μg/m3 (0) 15.0
 
Jan. 20, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 4.0 μg/m3 (4) 3.9 μg/m3 (16) 18.0
 
Jan. 20, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 3.0 μg/m3 (3) 2.4 μg/m3 (10) 19.0
 
Jan. 20, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 3.0 μg/m3 (3) 2.3 μg/m3 (10) 21.0
 
Jan. 20, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 0.0 μg/m3 (0) -0.5 μg/m3 (0) 22.0
 
Jan. 20, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 4.0 μg/m3 (4) 0.7 μg/m3 (3) 23.0
 
Jan. 20, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 5.0 μg/m3 (5) 2.1 μg/m3 (9) 25.0
 
Jan. 20, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 13.0 μg/m3 (12) 6.9 μg/m3 (29) 29.0
 
Jan. 20, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 23.0 μg/m3 (21) 12.4 μg/m3 (51) 51.0
 
Jan. 20, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A 28.0 μg/m3 (25) 17.7 μg/m3 (62) 62.0
 
Jan. 20, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 23.0 μg/m3 (21) 12.8 μg/m3 (52) 52.0
 
Jan. 20, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 19.0 μg/m3 (17) 7.6 μg/m3 (32) 32.0
 
Jan. 20, 2020, midnight N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 12.0 μg/m3 (11) 6.5 μg/m3 (27) 27.0
 
Jan. 19, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 5.0 μg/m3 (5) 1.8 μg/m3 (8) 32.0
 
Jan. 19, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 4.0 μg/m3 (4) 2.2 μg/m3 (9) 34.0
 
Jan. 19, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 6.0 μg/m3 (5) 2.8 μg/m3 (12) 34.0
 
Jan. 19, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 7.0 μg/m3 (6) 0.8 μg/m3 (3) 32.0
 
Jan. 19, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 4.0 μg/m3 (4) 0.0 μg/m3 (0) 29.0
 
Jan. 19, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 3.0 μg/m3 (3) -0.4 μg/m3 (0) 27.0
 
Jan. 19, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 8.0 μg/m3 (7) 4.0 μg/m3 (17) 25.0
 
Jan. 19, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 8.0 μg/m3 (7) 5.1 μg/m3 (21) 23.0
 
Jan. 19, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 6.0 μg/m3 (5) 4.0 μg/m3 (17) 17.0
 
Jan. 19, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 7.0 μg/m3 (6) 4.5 μg/m3 (19) 19.0
 
Jan. 19, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 4.0 μg/m3 (4) 3.5 μg/m3 (15) 18.0
 
Jan. 19, 2020, noon N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 5.0 μg/m3 (5) 3.4 μg/m3 (14) 18.0
 
Jan. 19, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 9.0 μg/m3 (8) 7.7 μg/m3 (32) 32.0
 
Jan. 19, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 15.0 μg/m3 (14) 13.3 μg/m3 (53) 53.0
 
Jan. 19, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 16.0 μg/m3 (15) 13.4 μg/m3 (53) 53.0
 
Jan. 19, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A 24.0 μg/m3 (22) 18.0 μg/m3 (63) 63.0
 
Jan. 19, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A 42.0 μg/m3 (38) 27.3 μg/m3 (83) 83.0
 
Jan. 19, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 45.0 μg/m3 (41) 29.5 μg/m3 (87) 87.0
 
Jan. 19, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 38.0 μg/m3 (35) 23.4 μg/m3 (74) 74.0
 
Jan. 19, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 29.0 μg/m3 (26) 15.1 μg/m3 (57) 57.0
 
Jan. 19, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A 28.0 μg/m3 (25) 15.4 μg/m3 (57) 57.0
 
Jan. 19, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 21.0 μg/m3 (19) 8.3 μg/m3 (35) 35.0
 
Jan. 19, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 16.0 μg/m3 (15) 3.5 μg/m3 (15) 21.0
 
Jan. 19, 2020, midnight N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 12.0 μg/m3 (11) 6.3 μg/m3 (26) 30.0
 
Jan. 18, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 7.0 μg/m3 (6) 3.3 μg/m3 (14) 35.0
 
Jan. 18, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 7.0 μg/m3 (6) 4.1 μg/m3 (17) 35.0
 
Jan. 18, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 10.0 μg/m3 (9) 7.2 μg/m3 (30) 32.0
 
Jan. 18, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 17.0 μg/m3 (15) 12.6 μg/m3 (51) 51.0
 
Jan. 18, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 19.0 μg/m3 (17) 12.7 μg/m3 (51) 51.0
 
Jan. 18, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 29.0 μg/m3 (26) 22.3 μg/m3 (72) 72.0
 
Jan. 18, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 38.0 μg/m3 (35) 26.8 μg/m3 (81) 81.0
 
Jan. 18, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) N/A 30.0 μg/m3 (27) 18.5 μg/m3 (64) 64.0
 
Jan. 18, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A 13.0 μg/m3 (12) 7.7 μg/m3 (32) 32.0
 
Jan. 18, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 15.0 μg/m3 (14) 12.4 μg/m3 (51) 51.0
 
Jan. 18, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 22.0 μg/m3 (20) 18.9 μg/m3 (65) 65.0
 
Jan. 18, 2020, noon N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A 16.0 μg/m3 (15) 13.5 μg/m3 (53) 53.0
 
Jan. 18, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 15.0 μg/m3 (14) 12.6 μg/m3 (51) 51.0
 
Jan. 18, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 15.0 μg/m3 (14) 9.5 μg/m3 (40) 40.0