AQSQID: 490130002

Site Name: Roosvelt

Location: Roosevelt, UT

Reporting: True, Located: True

Current AQI: 30.0

Roosevelt UT, US: 40.2943, -110.009

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 19, 2019, 5 p.m. 32.9 ppb (30) 19.6 ppb (18) N/A 13.0 ppb (12) N/A N/A 32.0 ppb (25) N/A N/A 5.7 μg/m3 (24) 30.0
 
Jan. 19, 2019, 4 p.m. 15.9 ppb (15) 7.6 ppb (7) N/A 8.0 ppb (7) N/A N/A 34.0 ppb (26) N/A N/A 4.3 μg/m3 (18) 26.0
 
Jan. 19, 2019, 3 p.m. 9.9 ppb (9) 2.6 ppb (2) N/A 7.0 ppb (6) N/A N/A 32.0 ppb (25) N/A N/A 2.6 μg/m3 (11) 25.0
 
Jan. 19, 2019, 2 p.m. 10.2 ppb (9) 0.7 ppb (1) N/A 10.0 ppb (9) N/A N/A 31.0 ppb (24) N/A N/A 1.8 μg/m3 (8) 24.0
 
Jan. 19, 2019, 1 p.m. 11.1 ppb (10) 0.3 ppb (0) N/A 11.0 ppb (10) N/A N/A 30.0 ppb (23) N/A N/A 1.7 μg/m3 (7) 23.0
 
Jan. 19, 2019, noon 7.8 ppb (7) 0.6 ppb (1) N/A 7.0 ppb (6) N/A N/A 34.0 ppb (26) N/A N/A 1.2 μg/m3 (5) 26.0
 
Jan. 19, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 0.7 μg/m3 (3) 28.0
 
Jan. 19, 2019, 10 a.m. 4.9 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 36.0 ppb (28) N/A N/A 3.4 μg/m3 (14) 28.0
 
Jan. 19, 2019, 9 a.m. 6.0 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 37.0 ppb (28) N/A N/A 1.2 μg/m3 (5) 28.0
 
Jan. 19, 2019, 8 a.m. 6.0 ppb (6) 0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 37.0 ppb (28) N/A N/A 1.5 μg/m3 (6) 28.0
 
Jan. 19, 2019, 7 a.m. 7.4 ppb (7) 0.3 ppb (0) N/A 7.0 ppb (6) N/A N/A 40.0 ppb (31) N/A N/A 2.0 μg/m3 (8) 31.0
 
Jan. 19, 2019, 6 a.m. 6.8 ppb (6) 0.4 ppb (0) N/A 7.0 ppb (6) N/A N/A 40.0 ppb (31) N/A N/A 3.0 μg/m3 (12) 31.0
 
Jan. 19, 2019, 5 a.m. 10.9 ppb (10) 0.4 ppb (0) N/A 11.0 ppb (10) N/A N/A 34.0 ppb (26) N/A N/A 3.2 μg/m3 (13) 26.0
 
Jan. 19, 2019, 4 a.m. 8.1 ppb (8) 0.2 ppb (0) N/A 8.0 ppb (7) N/A N/A 36.0 ppb (28) N/A N/A 2.1 μg/m3 (9) 28.0
 
Jan. 19, 2019, 3 a.m. 8.5 ppb (8) 0.6 ppb (1) N/A 8.0 ppb (7) N/A N/A 37.0 ppb (28) N/A N/A 3.1 μg/m3 (13) 28.0
 
Jan. 19, 2019, 2 a.m. 8.9 ppb (8) 1.3 ppb (1) N/A 8.0 ppb (7) N/A N/A 36.0 ppb (28) N/A N/A 2.6 μg/m3 (11) 28.0
 
Jan. 19, 2019, 1 a.m. 20.7 ppb (19) 1.8 ppb (2) N/A 19.0 ppb (18) N/A N/A 35.0 ppb (27) N/A N/A 7.4 μg/m3 (31) 31.0
 
Jan. 19, 2019, midnight 17.2 ppb (16) 0.7 ppb (1) N/A 17.0 ppb (16) N/A N/A 41.0 ppb (32) N/A N/A 6.3 μg/m3 (26) 32.0
 
Jan. 18, 2019, 11 p.m. 8.8 ppb (8) 1.0 ppb (1) N/A 8.0 ppb (7) N/A N/A 49.0 ppb (38) N/A N/A 4.7 μg/m3 (20) 38.0
 
Jan. 18, 2019, 10 p.m. 7.2 ppb (7) 1.5 ppb (1) N/A 6.0 ppb (6) N/A N/A 51.0 ppb (39) N/A N/A 5.2 μg/m3 (22) 39.0
 
Jan. 18, 2019, 9 p.m. 7.3 ppb (7) 2.0 ppb (2) N/A 5.0 ppb (5) N/A N/A 49.0 ppb (38) N/A N/A 4.8 μg/m3 (20) 38.0
 
Jan. 18, 2019, 8 p.m. 7.2 ppb (7) 2.2 ppb (2) N/A 5.0 ppb (5) N/A N/A 48.0 ppb (37) N/A N/A 5.4 μg/m3 (23) 37.0
 
Jan. 18, 2019, 7 p.m. 11.7 ppb (11) 5.2 ppb (5) N/A 7.0 ppb (6) N/A N/A 43.0 ppb (33) N/A N/A 4.7 μg/m3 (20) 33.0
 
Jan. 18, 2019, 6 p.m. 11.9 ppb (11) 5.4 ppb (5) N/A 7.0 ppb (6) N/A N/A 39.0 ppb (30) N/A N/A 3.1 μg/m3 (13) 30.0
 
Jan. 18, 2019, 5 p.m. 14.1 ppb (13) 5.9 ppb (5) N/A 8.0 ppb (7) N/A N/A 35.0 ppb (27) N/A N/A 2.6 μg/m3 (11) 27.0
 
Jan. 18, 2019, 4 p.m. 14.5 ppb (13) 7.6 ppb (7) N/A 7.0 ppb (6) N/A N/A 33.0 ppb (25) N/A N/A 2.0 μg/m3 (8) 25.0
 
Jan. 18, 2019, 3 p.m. 22.0 ppb (20) 6.8 ppb (6) N/A 15.0 ppb (14) N/A N/A 26.0 ppb (20) N/A N/A 2.8 μg/m3 (12) 20.0
 
Jan. 18, 2019, 2 p.m. 22.1 ppb (20) 2.7 ppb (3) N/A 19.0 ppb (18) N/A N/A 18.0 ppb (14) N/A N/A 5.7 μg/m3 (24) 24.0
 
Jan. 18, 2019, 1 p.m. 14.9 ppb (14) 0.8 ppb (1) N/A 14.0 ppb (13) N/A N/A 25.0 ppb (19) N/A N/A 6.7 μg/m3 (28) 28.0
 
Jan. 18, 2019, noon 11.7 ppb (11) 0.4 ppb (0) N/A 11.0 ppb (10) N/A N/A 27.0 ppb (21) N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 18, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 22.9 μg/m3 (73) 73.0
 
Jan. 18, 2019, 10 a.m. 16.9 ppb (16) 0.8 ppb (1) N/A 16.0 ppb (15) N/A N/A 22.0 ppb (17) N/A N/A 20.8 μg/m3 (69) 69.0
 
Jan. 18, 2019, 9 a.m. 14.6 ppb (14) 0.5 ppb (0) N/A 14.0 ppb (13) N/A N/A 25.0 ppb (19) N/A N/A 19.7 μg/m3 (66) 66.0
 
Jan. 18, 2019, 8 a.m. 16.4 ppb (15) 0.6 ppb (1) N/A 16.0 ppb (15) N/A N/A 24.0 ppb (18) N/A N/A 17.2 μg/m3 (61) 61.0
 
Jan. 18, 2019, 7 a.m. 17.8 ppb (16) 0.3 ppb (0) N/A 18.0 ppb (17) N/A N/A 23.0 ppb (18) N/A N/A 19.7 μg/m3 (66) 66.0
 
Jan. 18, 2019, 6 a.m. 22.2 ppb (21) 0.6 ppb (1) N/A 22.0 ppb (20) N/A N/A 20.0 ppb (15) N/A N/A 23.4 μg/m3 (74) 74.0
 
Jan. 18, 2019, 5 a.m. 26.6 ppb (25) 0.6 ppb (1) N/A 26.0 ppb (24) N/A N/A 18.0 ppb (14) N/A N/A 22.2 μg/m3 (72) 72.0
 
Jan. 18, 2019, 4 a.m. 22.5 ppb (21) 0.7 ppb (1) N/A 22.0 ppb (20) N/A N/A 25.0 ppb (19) N/A N/A 25.7 μg/m3 (79) 79.0
 
Jan. 18, 2019, 3 a.m. 17.9 ppb (17) 0.6 ppb (1) N/A 17.0 ppb (16) N/A N/A 31.0 ppb (24) N/A N/A 25.8 μg/m3 (79) 79.0
 
Jan. 18, 2019, 2 a.m. 24.9 ppb (23) 0.6 ppb (1) N/A 24.0 ppb (22) N/A N/A 25.0 ppb (19) N/A N/A 24.8 μg/m3 (77) 77.0
 
Jan. 18, 2019, 1 a.m. 21.2 ppb (20) 0.4 ppb (0) N/A 21.0 ppb (19) N/A N/A 30.0 ppb (23) N/A N/A 24.9 μg/m3 (77) 77.0
 
Jan. 18, 2019, midnight 16.9 ppb (16) 0.5 ppb (0) N/A 16.0 ppb (15) N/A N/A 36.0 ppb (28) N/A N/A 21.3 μg/m3 (70) 70.0
 
Jan. 17, 2019, 11 p.m. 16.1 ppb (15) 2.2 ppb (2) N/A 14.0 ppb (13) N/A N/A 40.0 ppb (31) N/A N/A 20.6 μg/m3 (68) 68.0
 
Jan. 17, 2019, 10 p.m. 17.6 ppb (16) 3.4 ppb (3) N/A 14.0 ppb (13) N/A N/A 40.0 ppb (31) N/A N/A 20.8 μg/m3 (69) 69.0
 
Jan. 17, 2019, 9 p.m. 14.3 ppb (13) 2.4 ppb (2) N/A 12.0 ppb (11) N/A N/A 41.0 ppb (32) N/A N/A 22.8 μg/m3 (73) 73.0
 
Jan. 17, 2019, 8 p.m. 19.2 ppb (18) 4.8 ppb (4) N/A 14.0 ppb (13) N/A N/A 36.0 ppb (28) N/A N/A 24.9 μg/m3 (77) 77.0
 
Jan. 17, 2019, 7 p.m. 15.2 ppb (14) 4.2 ppb (4) N/A 11.0 ppb (10) N/A N/A 38.0 ppb (29) N/A N/A 22.7 μg/m3 (73) 73.0
 
Jan. 17, 2019, 6 p.m. 12.7 ppb (12) 2.9 ppb (3) N/A 10.0 ppb (9) N/A N/A 34.0 ppb (26) N/A N/A 25.3 μg/m3 (78) 78.0
 
Jan. 17, 2019, 5 p.m. 12.0 ppb (11) 3.4 ppb (3) N/A 9.0 ppb (8) N/A N/A 32.0 ppb (25) N/A N/A 25.4 μg/m3 (79) 79.0
 
Jan. 17, 2019, 4 p.m. 23.5 ppb (22) 8.6 ppb (8) N/A 15.0 ppb (14) N/A N/A 24.0 ppb (18) N/A N/A 24.1 μg/m3 (76) 76.0
 
Jan. 17, 2019, 3 p.m. 54.4 ppb (50) 24.2 ppb (22) N/A 30.0 ppb (28) N/A N/A 9.0 ppb (7) N/A N/A 25.8 μg/m3 (79) 79.0
 
Jan. 17, 2019, 2 p.m. 32.8 ppb (30) 5.5 ppb (5) N/A 27.0 ppb (25) N/A N/A 10.0 ppb (8) N/A N/A 21.6 μg/m3 (70) 70.0
 
Jan. 17, 2019, 1 p.m. 26.4 ppb (24) 2.3 ppb (2) N/A 24.0 ppb (22) N/A N/A 13.0 ppb (10) N/A N/A 19.0 μg/m3 (65) 65.0
 
Jan. 17, 2019, noon 20.8 ppb (19) 1.6 ppb (1) N/A 19.0 ppb (18) N/A N/A 18.0 ppb (14) N/A N/A 19.8 μg/m3 (67) 67.0
 
Jan. 17, 2019, 11 a.m. 12.3 ppb (11) 0.5 ppb (0) N/A 12.0 ppb (11) N/A N/A 26.0 ppb (20) N/A N/A 16.4 μg/m3 (59) 59.0
 
Jan. 17, 2019, 10 a.m. 18.1 ppb (17) 0.7 ppb (1) N/A 18.0 ppb (17) N/A N/A 20.0 ppb (15) N/A N/A 22.6 μg/m3 (73) 73.0
 
Jan. 17, 2019, 9 a.m. 18.0 ppb (17) 0.5 ppb (0) N/A 18.0 ppb (17) N/A N/A 19.0 ppb (15) N/A N/A 20.7 μg/m3 (69) 69.0
 
Jan. 17, 2019, 8 a.m. 21.4 ppb (20) 1.3 ppb (1) N/A 20.0 ppb (19) N/A N/A 18.0 ppb (14) N/A N/A 21.5 μg/m3 (70) 70.0
 
Jan. 17, 2019, 7 a.m. 29.5 ppb (27) 2.5 ppb (2) N/A 27.0 ppb (25) N/A N/A 14.0 ppb (11) N/A N/A 23.1 μg/m3 (74) 74.0
 
Jan. 17, 2019, 6 a.m. 28.0 ppb (26) 0.9 ppb (1) N/A 27.0 ppb (25) N/A N/A 15.0 ppb (12) N/A N/A 23.0 μg/m3 (73) 73.0
 
Jan. 17, 2019, 5 a.m. 18.2 ppb (17) 0.8 ppb (1) N/A 17.0 ppb (16) N/A N/A 24.0 ppb (18) N/A N/A 19.0 μg/m3 (65) 65.0
 
Jan. 17, 2019, 4 a.m. 19.1 ppb (18) 1.8 ppb (2) N/A 17.0 ppb (16) N/A N/A 24.0 ppb (18) N/A N/A 18.7 μg/m3 (64) 64.0
 
Jan. 17, 2019, 3 a.m. 13.2 ppb (12) 0.6 ppb (1) N/A 13.0 ppb (12) N/A N/A 33.0 ppb (25) N/A N/A 23.8 μg/m3 (75) 75.0
 
Jan. 17, 2019, 2 a.m. 18.0 ppb (17) 2.0 ppb (2) N/A 16.0 ppb (15) N/A N/A 35.0 ppb (27) N/A N/A 17.0 μg/m3 (61) 61.0
 
Jan. 17, 2019, 1 a.m. 21.9 ppb (20) 0.8 ppb (1) N/A 21.0 ppb (19) N/A N/A 32.0 ppb (25) N/A N/A 16.3 μg/m3 (59) 59.0
 
Jan. 17, 2019, midnight 17.6 ppb (16) 1.3 ppb (1) N/A 16.0 ppb (15) N/A N/A 39.0 ppb (30) N/A N/A 13.7 μg/m3 (54) 54.0
 
Jan. 16, 2019, 11 p.m. 10.1 ppb (9) 0.9 ppb (1) N/A 9.0 ppb (8) N/A N/A 47.0 ppb (36) N/A N/A 12.4 μg/m3 (51) 51.0
 
Jan. 16, 2019, 10 p.m. 10.0 ppb (9) 2.0 ppb (2) N/A 8.0 ppb (7) N/A N/A 48.0 ppb (37) N/A N/A 12.5 μg/m3 (51) 51.0
 
Jan. 16, 2019, 9 p.m. 11.2 ppb (10) 3.5 ppb (3) N/A 8.0 ppb (7) N/A N/A 46.0 ppb (35) N/A N/A 14.6 μg/m3 (56) 56.0
 
Jan. 16, 2019, 8 p.m. 12.5 ppb (12) 5.1 ppb (5) N/A 7.0 ppb (6) N/A N/A 43.0 ppb (33) N/A N/A 15.3 μg/m3 (57) 57.0
 
Jan. 16, 2019, 7 p.m. 10.2 ppb (9) 4.1 ppb (4) N/A 6.0 ppb (6) N/A N/A 39.0 ppb (30) N/A N/A 14.8 μg/m3 (56) 56.0
 
Jan. 16, 2019, 6 p.m. 10.5 ppb (10) 4.2 ppb (4) N/A 6.0 ppb (6) N/A N/A 33.0 ppb (25) N/A N/A 15.5 μg/m3 (57) 57.0
 
Jan. 16, 2019, 5 p.m. 28.2 ppb (26) 14.9 ppb (14) N/A 13.0 ppb (12) N/A N/A 23.0 ppb (18) N/A N/A 18.0 μg/m3 (63) 63.0
 
Jan. 16, 2019, 4 p.m. 24.5 ppb (23) 10.8 ppb (10) N/A 14.0 ppb (13) N/A N/A 17.0 ppb (13) N/A N/A 21.3 μg/m3 (70) 70.0
 
Jan. 16, 2019, 3 p.m. 21.3 ppb (20) 6.0 ppb (6) N/A 15.0 ppb (14) N/A N/A 14.0 ppb (11) N/A N/A 24.0 μg/m3 (76) 76.0
 
Jan. 16, 2019, 2 p.m. 26.9 ppb (25) 2.1 ppb (2) N/A 25.0 ppb (23) N/A N/A 7.0 ppb (5) N/A N/A 19.4 μg/m3 (66) 66.0
 
Jan. 16, 2019, 1 p.m. 21.7 ppb (20) 2.2 ppb (2) N/A 20.0 ppb (19) N/A N/A 13.0 ppb (10) N/A N/A 16.8 μg/m3 (60) 60.0
 
Jan. 16, 2019, noon 12.5 ppb (12) 0.3 ppb (0) N/A 12.0 ppb (11) N/A N/A 19.0 ppb (15) N/A N/A 15.5 μg/m3 (57) 57.0
 
Jan. 16, 2019, 11 a.m. 9.1 ppb (8) 0.2 ppb (0) N/A 9.0 ppb (8) N/A N/A N/A N/A N/A 15.5 μg/m3 (57) 57.0
 
Jan. 16, 2019, 10 a.m. 9.7 ppb (9) 0.2 ppb (0) N/A 10.0 ppb (9) N/A N/A 21.0 ppb (16) N/A N/A 16.6 μg/m3 (60) 60.0
 
Jan. 16, 2019, 9 a.m. 9.6 ppb (9) 0.2 ppb (0) N/A 9.0 ppb (8) N/A N/A 22.0 ppb (17) N/A N/A 16.8 μg/m3 (60) 60.0
 
Jan. 16, 2019, 8 a.m. 9.2 ppb (9) 0.2 ppb (0) N/A 9.0 ppb (8) N/A N/A 22.0 ppb (17) N/A N/A 17.3 μg/m3 (61) 61.0
 
Jan. 16, 2019, 7 a.m. 10.6 ppb (10) 0.2 ppb (0) N/A 10.0 ppb (9) N/A N/A 22.0 ppb (17) N/A N/A 16.9 μg/m3 (60) 60.0
 
Jan. 16, 2019, 6 a.m. 10.9 ppb (10) 0.2 ppb (0) N/A 11.0 ppb (10) N/A N/A 23.0 ppb (18) N/A N/A 15.3 μg/m3 (57) 57.0
 
Jan. 16, 2019, 5 a.m. 13.5 ppb (12) 0.2 ppb (0) N/A 13.0 ppb (12) N/A N/A 22.0 ppb (17) N/A N/A 15.5 μg/m3 (57) 57.0
 
Jan. 16, 2019, 4 a.m. 14.7 ppb (14) 0.2 ppb (0) N/A 15.0 ppb (14) N/A N/A 22.0 ppb (17) N/A N/A 13.8 μg/m3 (54) 54.0
 
Jan. 16, 2019, 3 a.m. 13.4 ppb (12) 0.2 ppb (0) N/A 13.0 ppb (12) N/A N/A 24.0 ppb (18) N/A N/A 13.9 μg/m3 (54) 54.0
 
Jan. 16, 2019, 2 a.m. 14.2 ppb (13) 0.2 ppb (0) N/A 14.0 ppb (13) N/A N/A 24.0 ppb (18) N/A N/A 13.8 μg/m3 (54) 54.0
 
Jan. 16, 2019, 1 a.m. 10.6 ppb (10) 0.1 ppb (0) N/A 11.0 ppb (10) N/A N/A 28.0 ppb (22) N/A N/A 12.4 μg/m3 (51) 51.0
 
Jan. 16, 2019, midnight 10.4 ppb (10) 0.2 ppb (0) N/A 10.0 ppb (9) N/A N/A 30.0 ppb (23) N/A N/A 12.1 μg/m3 (50) 50.0
 
Jan. 15, 2019, 11 p.m. 8.5 ppb (8) 0.7 ppb (1) N/A 8.0 ppb (7) N/A N/A 33.0 ppb (25) N/A N/A 13.0 μg/m3 (52) 52.0
 
Jan. 15, 2019, 10 p.m. 9.6 ppb (9) 1.9 ppb (2) N/A 8.0 ppb (7) N/A N/A 33.0 ppb (25) N/A N/A 14.0 μg/m3 (54) 54.0
 
Jan. 15, 2019, 9 p.m. 10.2 ppb (9) 2.8 ppb (3) N/A 8.0 ppb (7) N/A N/A 33.0 ppb (25) N/A N/A 14.5 μg/m3 (55) 55.0
 
Jan. 15, 2019, 8 p.m. 9.8 ppb (9) 3.6 ppb (3) N/A 6.0 ppb (6) N/A N/A 34.0 ppb (26) N/A N/A 14.7 μg/m3 (56) 56.0
 
Jan. 15, 2019, 7 p.m. 9.3 ppb (9) 3.6 ppb (3) N/A 6.0 ppb (6) N/A N/A 32.0 ppb (25) N/A N/A 16.2 μg/m3 (59) 59.0
 
Jan. 15, 2019, 6 p.m. 10.1 ppb (9) 3.4 ppb (3) N/A 7.0 ppb (6) N/A N/A 30.0 ppb (23) N/A N/A 18.1 μg/m3 (63) 63.0
 
Jan. 15, 2019, 5 p.m. 19.9 ppb (18) 7.0 ppb (6) N/A 13.0 ppb (12) N/A N/A 23.0 ppb (18) N/A N/A 18.5 μg/m3 (64) 64.0
 
Jan. 15, 2019, 4 p.m. 9.4 ppb (9) 2.5 ppb (2) N/A 7.0 ppb (6) N/A N/A 28.0 ppb (22) N/A N/A 16.4 μg/m3 (59) 59.0
 
Jan. 15, 2019, 3 p.m. 8.5 ppb (8) 0.7 ppb (1) N/A 8.0 ppb (7) N/A N/A 25.0 ppb (19) N/A N/A 17.5 μg/m3 (62) 62.0
 
Jan. 15, 2019, 2 p.m. 8.5 ppb (8) 0.3 ppb (0) N/A 8.0 ppb (7) N/A N/A 24.0 ppb (18) N/A N/A 18.3 μg/m3 (63) 63.0
 
Jan. 15, 2019, 1 p.m. 8.4 ppb (8) 0.8 ppb (1) N/A 8.0 ppb (7) N/A N/A 25.0 ppb (19) N/A N/A 18.8 μg/m3 (64) 64.0
 
Jan. 15, 2019, noon 9.4 ppb (9) 0.8 ppb (1) N/A 9.0 ppb (8) N/A N/A 22.0 ppb (17) N/A N/A 18.8 μg/m3 (64) 64.0
 
Jan. 15, 2019, 11 a.m. 16.7 ppb (15) 0.4 ppb (0) N/A 16.0 ppb (15) N/A N/A 11.0 ppb (8) N/A N/A 17.3 μg/m3 (61) 61.0
 
Jan. 15, 2019, 10 a.m. 18.1 ppb (17) 0.5 ppb (0) N/A 18.0 ppb (17) N/A N/A 9.0 ppb (7) N/A N/A 15.2 μg/m3 (57) 57.0
 
Jan. 15, 2019, 9 a.m. 18.3 ppb (17) 3.2 ppb (3) N/A 15.0 ppb (14) N/A N/A 16.0 ppb (12) N/A N/A 14.2 μg/m3 (55) 55.0
 
Jan. 15, 2019, 8 a.m. 16.3 ppb (15) 0.7 ppb (1) N/A 16.0 ppb (15) N/A N/A 15.0 ppb (12) N/A N/A 12.5 μg/m3 (51) 51.0
 
Jan. 15, 2019, 7 a.m. 12.2 ppb (11) 1.2 ppb (1) N/A 11.0 ppb (10) N/A N/A 20.0 ppb (15) N/A N/A 13.2 μg/m3 (53) 53.0
 
Jan. 15, 2019, 6 a.m. 26.5 ppb (25) 6.5 ppb (6) N/A 20.0 ppb (19) N/A N/A 13.0 ppb (10) N/A N/A 12.1 μg/m3 (50) 50.0
 
Jan. 15, 2019, 5 a.m. 8.8 ppb (8) 0.2 ppb (0) N/A 9.0 ppb (8) N/A N/A 21.0 ppb (16) N/A N/A 11.1 μg/m3 (46) 46.0
 
Jan. 15, 2019, 4 a.m. 6.5 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 27.0 ppb (21) N/A N/A 9.9 μg/m3 (41) 41.0
 
Jan. 15, 2019, 3 a.m. 7.7 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A N/A 30.0 ppb (23) N/A N/A 9.7 μg/m3 (40) 40.0
 
Jan. 15, 2019, 2 a.m. 12.2 ppb (11) 0.6 ppb (1) N/A 12.0 ppb (11) N/A N/A 26.0 ppb (20) N/A N/A 11.6 μg/m3 (48) 48.0
 
Jan. 15, 2019, 1 a.m. 15.4 ppb (14) 0.5 ppb (0) N/A 15.0 ppb (14) N/A N/A 25.0 ppb (19) N/A N/A 12.1 μg/m3 (50) 50.0
 
Jan. 15, 2019, midnight 9.7 ppb (9) 0.3 ppb (0) N/A 9.0 ppb (8) N/A N/A 32.0 ppb (25) N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 14, 2019, 11 p.m. 9.0 ppb (8) 1.2 ppb (1) N/A 8.0 ppb (7) N/A N/A 34.0 ppb (26) N/A N/A 9.3 μg/m3 (39) 39.0
 
Jan. 14, 2019, 10 p.m. 6.1 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (28) N/A N/A 6.7 μg/m3 (28) 28.0
 
Jan. 14, 2019, 9 p.m. 6.8 ppb (6) 2.6 ppb (2) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (28) N/A N/A 6.4 μg/m3 (27) 28.0
 
Jan. 14, 2019, 8 p.m. 7.0 ppb (6) 2.3 ppb (2) N/A 5.0 ppb (5) N/A N/A 36.0 ppb (28) N/A N/A 6.9 μg/m3 (29) 29.0
 
Jan. 14, 2019, 7 p.m. 7.7 ppb (7) 2.6 ppb (2) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (27) N/A N/A 6.5 μg/m3 (27) 27.0
 
Jan. 14, 2019, 6 p.m. 5.1 ppb (5) 1.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (28) N/A N/A 5.9 μg/m3 (25) 28.0
 
Jan. 14, 2019, 5 p.m. 3.9 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (28) N/A N/A 6.0 μg/m3 (25) 28.0
 
Jan. 14, 2019, 4 p.m. 4.2 ppb (4) 1.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (28) N/A N/A 5.5 μg/m3 (23) 28.0
 
Jan. 14, 2019, 3 p.m. 3.5 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (28) N/A N/A 4.9 μg/m3 (20) 28.0
 
Jan. 14, 2019, 2 p.m. 5.0 ppb (5) 1.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (28) N/A N/A 4.9 μg/m3 (20) 28.0
 
Jan. 14, 2019, 1 p.m. 4.6 ppb (4) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (28) N/A N/A 5.8 μg/m3 (24) 28.0
 
Jan. 14, 2019, noon 11.2 ppb (10) 0.7 ppb (1) N/A 11.0 ppb (10) N/A N/A 29.0 ppb (22) N/A N/A 6.5 μg/m3 (27) 27.0
 
Jan. 14, 2019, 11 a.m. 6.4 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 33.0 ppb (25) N/A N/A 7.2 μg/m3 (30) 30.0
 
Jan. 14, 2019, 10 a.m. 4.3 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) N/A N/A 7.6 μg/m3 (32) 32.0
 
Jan. 14, 2019, 9 a.m. 3.7 ppb (3) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) N/A N/A 6.5 μg/m3 (27) 27.0
 
Jan. 14, 2019, 8 a.m. 3.4 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (27) N/A N/A 6.1 μg/m3 (25) 27.0
 
Jan. 14, 2019, 7 a.m. 3.9 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 35.0 ppb (27) N/A N/A 6.2 μg/m3 (26) 27.0
 
Jan. 14, 2019, 6 a.m. 4.6 ppb (4) 0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (27) N/A N/A 6.0 μg/m3 (25) 27.0
 
Jan. 14, 2019, 5 a.m. 6.0 ppb (6) 0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 34.0 ppb (26) N/A N/A 6.1 μg/m3 (25) 26.0
 
Jan. 14, 2019, 4 a.m. 6.7 ppb (6) 0.2 ppb (0) N/A 7.0 ppb (6) N/A N/A 33.0 ppb (25) N/A N/A 5.7 μg/m3 (24) 25.0
 
Jan. 14, 2019, 3 a.m. 3.5 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (28) N/A N/A 5.1 μg/m3 (21) 28.0
 
Jan. 14, 2019, 2 a.m. 3.2 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (26) N/A N/A 5.3 μg/m3 (22) 26.0
 
Jan. 14, 2019, 1 a.m. 3.7 ppb (3) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (25) N/A N/A 4.5 μg/m3 (19) 25.0
 
Jan. 14, 2019, midnight 3.3 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (26) N/A N/A 4.2 μg/m3 (18) 26.0
 
Jan. 13, 2019, 11 p.m. 2.7 ppb (3) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (28) N/A N/A 3.9 μg/m3 (16) 28.0
 
Jan. 13, 2019, 10 p.m. 2.3 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (31) N/A N/A 3.6 μg/m3 (15) 31.0
 
Jan. 13, 2019, 9 p.m. 2.3 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (31) N/A N/A 3.5 μg/m3 (15) 31.0
 
Jan. 13, 2019, 8 p.m. 2.6 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (31) N/A N/A 3.8 μg/m3 (16) 31.0
 
Jan. 13, 2019, 7 p.m. 3.5 ppb (3) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (29) N/A N/A 4.4 μg/m3 (18) 29.0
 
Jan. 13, 2019, 6 p.m. 5.8 ppb (5) 1.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (28) N/A N/A 4.8 μg/m3 (20) 28.0
 
Jan. 13, 2019, 5 p.m. 3.7 ppb (3) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (28) N/A N/A 3.7 μg/m3 (15) 28.0
 
Jan. 13, 2019, 4 p.m. 3.2 ppb (3) 1.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (28) N/A N/A 3.3 μg/m3 (14) 28.0
 
Jan. 13, 2019, 3 p.m. 3.2 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (27) N/A N/A 3.9 μg/m3 (16) 27.0
 
Jan. 13, 2019, 2 p.m. 2.7 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 33.0 ppb (25) N/A N/A 5.6 μg/m3 (23) 25.0
 
Jan. 13, 2019, 1 p.m. 3.1 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 33.0 ppb (25) N/A N/A 8.1 μg/m3 (34) 34.0
 
Jan. 13, 2019, noon 3.7 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 31.0 ppb (24) N/A N/A 14.9 μg/m3 (56) 56.0
 
Jan. 13, 2019, 11 a.m. 3.5 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 27.0 ppb (21) N/A N/A 20.6 μg/m3 (68) 68.0
 
Jan. 13, 2019, 10 a.m. 5.3 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 23.0 ppb (18) N/A N/A 18.9 μg/m3 (65) 65.0
 
Jan. 13, 2019, 9 a.m. 15.0 ppb (14) 0.8 ppb (1) N/A 14.0 ppb (13) N/A N/A 15.0 ppb (12) N/A N/A 12.2 μg/m3 (50) 50.0
 
Jan. 13, 2019, 8 a.m. 18.7 ppb (17) 1.3 ppb (1) N/A 17.0 ppb (16) N/A N/A 11.0 ppb (8) N/A N/A 16.5 μg/m3 (60) 60.0
 
Jan. 13, 2019, 7 a.m. 33.8 ppb (31) 9.8 ppb (9) N/A 24.0 ppb (22) N/A N/A 5.0 ppb (4) N/A N/A 11.2 μg/m3 (47) 47.0
 
Jan. 13, 2019, 6 a.m. 28.8 ppb (27) 6.7 ppb (6) N/A 22.0 ppb (20) N/A N/A 9.0 ppb (7) N/A N/A 7.2 μg/m3 (30) 30.0
 
Jan. 13, 2019, 5 a.m. 32.8 ppb (30) 13.5 ppb (12) N/A 19.0 ppb (18) N/A N/A 13.0 ppb (10) N/A N/A 6.7 μg/m3 (28) 30.0
 
Jan. 13, 2019, 4 a.m. 14.9 ppb (14) 1.1 ppb (1) N/A 14.0 ppb (13) N/A N/A 14.0 ppb (11) N/A N/A 9.9 μg/m3 (41) 41.0
 
Jan. 13, 2019, 3 a.m. 16.1 ppb (15) 1.0 ppb (1) N/A 15.0 ppb (14) N/A N/A 13.0 ppb (10) N/A N/A 15.7 μg/m3 (58) 58.0
 
Jan. 13, 2019, 2 a.m. 12.3 ppb (11) 0.3 ppb (0) N/A 12.0 ppb (11) N/A N/A 16.0 ppb (12) N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 13, 2019, 1 a.m. 12.7 ppb (12) 0.7 ppb (1) N/A 12.0 ppb (11) N/A N/A 20.0 ppb (15) N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 13, 2019, midnight 7.2 ppb (7) 0.2 ppb (0) N/A 7.0 ppb (6) N/A N/A 27.0 ppb (21) N/A N/A 4.7 μg/m3 (20) 21.0
 
Jan. 12, 2019, 11 p.m. 6.2 ppb (6) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A 30.0 ppb (23) N/A N/A 7.5 μg/m3 (31) 31.0
 
Jan. 12, 2019, 10 p.m. 5.6 ppb (5) 1.8 ppb (2) N/A 4.0 ppb (4) N/A N/A 31.0 ppb (24) N/A N/A 7.1 μg/m3 (30) 30.0
 
Jan. 12, 2019, 9 p.m. 7.2 ppb (7) 3.2 ppb (3) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (23) N/A N/A 7.7 μg/m3 (32) 32.0
 
Jan. 12, 2019, 8 p.m. 8.1 ppb (8) 4.1 ppb (4) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (22) N/A N/A 7.4 μg/m3 (31) 31.0
 
Jan. 12, 2019, 7 p.m. 11.3 ppb (10) 6.9 ppb (6) N/A 4.0 ppb (4) N/A N/A 23.0 ppb (18) N/A N/A 8.9 μg/m3 (37) 37.0
 
Jan. 12, 2019, 6 p.m. 15.5 ppb (14) 10.0 ppb (9) N/A 6.0 ppb (6) N/A N/A 21.0 ppb (16) N/A N/A 8.7 μg/m3 (36) 36.0