AQSQID: 113490351002

Site Name: Ma

Location: Salt Lake Co, UT

Reporting: False, Located: True

Current AQI: None

Salt Lake Co UT, US: 40.712064, -112.111122

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Feb. 1, 2019, 1 p.m. 51.0 ppb (47) 21.0 ppb (19) N/A 29.0 ppb (27) N/A 0.0 ppb (0) 4.0 ppb (3) N/A N/A 23.7 μg/m3 (75) 75.0
 
Feb. 1, 2019, noon 33.0 ppb (31) 8.0 ppb (7) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 7.0 ppb (5) N/A N/A 27.4 μg/m3 (83) 83.0
 
Feb. 1, 2019, 11 a.m. 22.0 ppb (20) 2.0 ppb (2) N/A 20.0 ppb (19) N/A N/A 10.0 ppb (8) N/A N/A 26.5 μg/m3 (81) 81.0
 
Feb. 1, 2019, 10 a.m. 25.0 ppb (23) 2.0 ppb (2) N/A 23.0 ppb (21) N/A 0.0 ppb (0) 8.0 ppb (6) N/A N/A 25.2 μg/m3 (78) 78.0
 
Feb. 1, 2019, 9 a.m. 27.0 ppb (25) 3.0 ppb (3) N/A 24.0 ppb (22) N/A 0.0 ppb (0) 9.0 ppb (7) N/A N/A 23.5 μg/m3 (74) 74.0
 
Feb. 1, 2019, 8 a.m. 25.0 ppb (23) 2.0 ppb (2) N/A 23.0 ppb (21) N/A 0.0 ppb (0) 8.0 ppb (6) N/A N/A 21.3 μg/m3 (70) 70.0
 
Feb. 1, 2019, 7 a.m. 20.0 ppb (19) 1.0 ppb (1) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 12.0 ppb (9) N/A N/A 22.1 μg/m3 (71) 71.0
 
Feb. 1, 2019, 6 a.m. 22.0 ppb (20) 2.0 ppb (2) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 11.0 ppb (8) N/A N/A 20.0 μg/m3 (67) 67.0
 
Feb. 1, 2019, 5 a.m. 21.0 ppb (19) 2.0 ppb (2) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 19.0 μg/m3 (65) 65.0
 
Feb. 1, 2019, 4 a.m. 22.0 ppb (20) 1.0 ppb (1) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 19.8 μg/m3 (67) 67.0
 
Feb. 1, 2019, 3 a.m. 25.0 ppb (23) 2.0 ppb (2) N/A 23.0 ppb (21) N/A 0.0 ppb (0) 12.0 ppb (9) N/A N/A 22.7 μg/m3 (73) 73.0
 
Feb. 1, 2019, 2 a.m. 15.0 ppb (14) 1.0 ppb (1) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A 16.2 μg/m3 (59) 59.0
 
Feb. 1, 2019, 1 a.m. 27.0 ppb (25) 3.0 ppb (3) N/A 24.0 ppb (22) N/A 0.0 ppb (0) 14.0 ppb (11) N/A N/A 18.7 μg/m3 (64) 64.0
 
Feb. 1, 2019, midnight 31.0 ppb (29) 4.0 ppb (4) N/A 28.0 ppb (26) N/A 0.0 ppb (0) 14.0 ppb (11) N/A N/A 21.7 μg/m3 (71) 71.0
 
Jan. 31, 2019, 11 p.m. 19.0 ppb (18) 3.0 ppb (3) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 19.5 μg/m3 (66) 66.0
 
Jan. 31, 2019, 10 p.m. 17.0 ppb (16) 4.0 ppb (4) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 17.6 μg/m3 (62) 62.0
 
Jan. 31, 2019, 9 p.m. 18.0 ppb (17) 5.0 ppb (5) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 19.2 μg/m3 (65) 65.0
 
Jan. 31, 2019, 8 p.m. 17.0 ppb (16) 5.0 ppb (5) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 19.9 μg/m3 (67) 67.0
 
Jan. 31, 2019, 7 p.m. 28.0 ppb (26) 12.0 ppb (11) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 25.3 μg/m3 (78) 78.0
 
Jan. 31, 2019, 6 p.m. 26.0 ppb (24) 11.0 ppb (10) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 29.2 μg/m3 (87) 87.0
 
Jan. 31, 2019, 5 p.m. 35.0 ppb (32) 16.0 ppb (15) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 33.1 μg/m3 (95) 95.0
 
Jan. 31, 2019, 4 p.m. 52.0 ppb (48) 28.0 ppb (26) N/A 24.0 ppb (22) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 33.4 μg/m3 (96) 96.0
 
Jan. 31, 2019, 3 p.m. 69.0 ppb (66) 42.0 ppb (39) N/A 27.0 ppb (25) N/A 0.0 ppb (0) 4.0 ppb (3) N/A N/A 30.1 μg/m3 (89) 89.0
 
Jan. 31, 2019, 2 p.m. 46.0 ppb (43) 17.0 ppb (16) N/A 28.0 ppb (26) N/A 0.0 ppb (0) 2.0 ppb (2) N/A N/A 29.8 μg/m3 (88) 88.0
 
Jan. 31, 2019, 1 p.m. 34.0 ppb (31) 9.0 ppb (8) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 4.0 ppb (3) N/A N/A 31.5 μg/m3 (91) 91.0
 
Jan. 31, 2019, noon 25.0 ppb (23) 4.0 ppb (4) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 8.0 ppb (6) N/A N/A 29.5 μg/m3 (87) 87.0
 
Jan. 31, 2019, 11 a.m. 24.0 ppb (22) 2.0 ppb (2) N/A 22.0 ppb (20) N/A 0.0 ppb (0) 7.0 ppb (5) N/A N/A 25.6 μg/m3 (79) 79.0
 
Jan. 31, 2019, 10 a.m. 23.0 ppb (21) 2.0 ppb (2) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 9.0 ppb (7) N/A N/A 22.3 μg/m3 (72) 72.0
 
Jan. 31, 2019, 9 a.m. 22.0 ppb (20) 1.0 ppb (1) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 11.0 ppb (8) N/A N/A 21.1 μg/m3 (69) 69.0
 
Jan. 31, 2019, 8 a.m. 19.0 ppb (18) 1.0 ppb (1) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 24.5 μg/m3 (77) 77.0
 
Jan. 31, 2019, 7 a.m. 22.0 ppb (20) 2.0 ppb (2) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 9.0 ppb (7) N/A N/A 22.0 μg/m3 (71) 71.0
 
Jan. 31, 2019, 6 a.m. 20.0 ppb (19) 1.0 ppb (1) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 11.0 ppb (8) N/A N/A 23.6 μg/m3 (75) 75.0
 
Jan. 31, 2019, 5 a.m. 21.0 ppb (19) 1.0 ppb (1) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 19.7 μg/m3 (66) 66.0
 
Jan. 31, 2019, 4 a.m. 27.0 ppb (25) 3.0 ppb (3) N/A 24.0 ppb (22) N/A 0.0 ppb (0) 11.0 ppb (8) N/A N/A 18.8 μg/m3 (64) 64.0
 
Jan. 31, 2019, 3 a.m. 32.0 ppb (30) 5.0 ppb (5) N/A 27.0 ppb (25) N/A 0.0 ppb (0) 9.0 ppb (7) N/A N/A 18.1 μg/m3 (63) 63.0
 
Jan. 31, 2019, 2 a.m. 24.0 ppb (22) 2.0 ppb (2) N/A 22.0 ppb (20) N/A 0.0 ppb (0) 12.0 ppb (9) N/A N/A 15.9 μg/m3 (58) 58.0
 
Jan. 31, 2019, 1 a.m. 24.0 ppb (22) 1.0 ppb (1) N/A 22.0 ppb (20) N/A 0.0 ppb (0) 14.0 ppb (11) N/A N/A 15.7 μg/m3 (58) 58.0
 
Jan. 31, 2019, midnight 21.0 ppb (19) 2.0 ppb (2) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 16.5 μg/m3 (60) 60.0
 
Jan. 30, 2019, 11 p.m. 20.0 ppb (19) 4.0 ppb (4) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 15.4 μg/m3 (57) 57.0
 
Jan. 30, 2019, 10 p.m. 20.0 ppb (19) 6.0 ppb (6) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 15.7 μg/m3 (58) 58.0
 
Jan. 30, 2019, 9 p.m. 19.0 ppb (18) 6.0 ppb (6) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 15.9 μg/m3 (58) 58.0
 
Jan. 30, 2019, 8 p.m. 24.0 ppb (22) 9.0 ppb (8) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 17.2 μg/m3 (61) 61.0
 
Jan. 30, 2019, 7 p.m. 31.0 ppb (29) 14.0 ppb (13) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 18.4 μg/m3 (64) 64.0
 
Jan. 30, 2019, 6 p.m. 40.0 ppb (37) 20.0 ppb (19) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 17.0 μg/m3 (61) 61.0
 
Jan. 30, 2019, 5 p.m. 39.0 ppb (36) 20.0 ppb (19) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 15.1 μg/m3 (57) 57.0
 
Jan. 30, 2019, 4 p.m. 51.0 ppb (47) 28.0 ppb (26) N/A 23.0 ppb (21) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 10.8 μg/m3 (45) 47.0
 
Jan. 30, 2019, 3 p.m. 74.0 ppb (71) 48.0 ppb (44) N/A 26.0 ppb (24) N/A 1.0 ppb (1) 4.0 ppb (3) N/A N/A 11.1 μg/m3 (46) 71.0
 
Jan. 30, 2019, 2 p.m. 52.0 ppb (48) 24.0 ppb (22) N/A 28.0 ppb (26) N/A 0.0 ppb (0) 2.0 ppb (2) N/A N/A 11.1 μg/m3 (46) 48.0
 
Jan. 30, 2019, 1 p.m. 33.0 ppb (31) 9.0 ppb (8) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 5.0 ppb (4) N/A N/A 10.6 μg/m3 (44) 44.0
 
Jan. 30, 2019, noon 23.0 ppb (21) 4.0 ppb (4) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 30, 2019, 11 a.m. 23.0 ppb (21) 4.0 ppb (4) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 12.2 μg/m3 (50) 50.0
 
Jan. 30, 2019, 10 a.m. 16.0 ppb (15) 1.0 ppb (1) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 10.6 μg/m3 (44) 44.0
 
Jan. 30, 2019, 9 a.m. 13.0 ppb (12) 1.0 ppb (1) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 6.9 μg/m3 (29) 29.0
 
Jan. 30, 2019, 8 a.m. 16.0 ppb (15) 2.0 ppb (2) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 27.9 μg/m3 (84) 84.0
 
Jan. 30, 2019, 7 a.m. 17.0 ppb (16) 1.0 ppb (1) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 14.0 ppb (11) N/A N/A 10.4 μg/m3 (43) 43.0
 
Jan. 30, 2019, 6 a.m. 19.0 ppb (18) 1.0 ppb (1) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 17.0 ppb (13) N/A N/A 11.4 μg/m3 (48) 48.0
 
Jan. 30, 2019, 5 a.m. 28.0 ppb (26) 5.0 ppb (5) N/A 24.0 ppb (22) N/A 0.0 ppb (0) 8.0 ppb (6) N/A N/A 9.8 μg/m3 (41) 41.0
 
Jan. 30, 2019, 4 a.m. 23.0 ppb (21) 2.0 ppb (2) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 9.5 μg/m3 (40) 40.0
 
Jan. 30, 2019, 3 a.m. 26.0 ppb (24) 4.0 ppb (4) N/A 23.0 ppb (21) N/A 0.0 ppb (0) 11.0 ppb (8) N/A N/A 10.2 μg/m3 (42) 42.0
 
Jan. 30, 2019, 2 a.m. 30.0 ppb (28) 3.0 ppb (3) N/A 27.0 ppb (25) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 30, 2019, 1 a.m. 21.0 ppb (19) 2.0 ppb (2) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 17.0 ppb (13) N/A N/A 9.9 μg/m3 (41) 41.0
 
Jan. 30, 2019, midnight 15.0 ppb (14) 1.0 ppb (1) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 8.2 μg/m3 (34) 34.0
 
Jan. 29, 2019, 11 p.m. 13.0 ppb (12) 2.0 ppb (2) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 8.2 μg/m3 (34) 34.0
 
Jan. 29, 2019, 10 p.m. 14.0 ppb (13) 4.0 ppb (4) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 9.3 μg/m3 (39) 39.0
 
Jan. 29, 2019, 9 p.m. 16.0 ppb (15) 5.0 ppb (5) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 10.8 μg/m3 (45) 45.0
 
Jan. 29, 2019, 8 p.m. 17.0 ppb (16) 6.0 ppb (6) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 10.5 μg/m3 (44) 44.0
 
Jan. 29, 2019, 7 p.m. 27.0 ppb (25) 12.0 ppb (11) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 11.6 μg/m3 (48) 48.0
 
Jan. 29, 2019, 6 p.m. 35.0 ppb (32) 15.0 ppb (14) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 12.9 μg/m3 (52) 52.0
 
Jan. 29, 2019, 5 p.m. 47.0 ppb (44) 22.0 ppb (20) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 14.0 ppb (11) N/A N/A 12.5 μg/m3 (51) 51.0
 
Jan. 29, 2019, 4 p.m. 47.0 ppb (44) 22.0 ppb (20) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 11.0 ppb (8) N/A N/A 9.5 μg/m3 (40) 44.0
 
Jan. 29, 2019, 3 p.m. 62.0 ppb (59) 34.0 ppb (31) N/A 28.0 ppb (26) N/A 0.0 ppb (0) 4.0 ppb (3) N/A N/A 8.3 μg/m3 (35) 59.0
 
Jan. 29, 2019, 2 p.m. 65.0 ppb (62) 31.0 ppb (29) N/A 34.0 ppb (31) N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 7.1 μg/m3 (30) 62.0
 
Jan. 29, 2019, 1 p.m. 29.0 ppb (27) 3.0 ppb (3) N/A 26.0 ppb (24) N/A 0.0 ppb (0) 5.0 ppb (4) N/A N/A 4.4 μg/m3 (18) 27.0
 
Jan. 29, 2019, noon 25.0 ppb (23) 4.0 ppb (4) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 5.0 ppb (4) N/A N/A 2.9 μg/m3 (12) 23.0
 
Jan. 29, 2019, 11 a.m. 23.0 ppb (21) 4.0 ppb (4) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 2.6 μg/m3 (11) 21.0
 
Jan. 29, 2019, 10 a.m. 14.0 ppb (13) 0.0 ppb (0) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 15.0 ppb (12) N/A N/A 2.5 μg/m3 (10) 13.0
 
Jan. 29, 2019, 9 a.m. 17.0 ppb (16) 1.0 ppb (1) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 14.0 ppb (11) N/A N/A 2.4 μg/m3 (10) 16.0
 
Jan. 29, 2019, 8 a.m. 16.0 ppb (15) 1.0 ppb (1) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 11.0 ppb (8) N/A N/A 3.3 μg/m3 (14) 15.0
 
Jan. 29, 2019, 7 a.m. 13.0 ppb (12) 1.0 ppb (1) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 17.0 ppb (13) N/A N/A 6.1 μg/m3 (25) 25.0
 
Jan. 29, 2019, 6 a.m. 20.0 ppb (19) 1.0 ppb (1) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 4.6 μg/m3 (19) 19.0
 
Jan. 29, 2019, 5 a.m. 28.0 ppb (26) 3.0 ppb (3) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 4.0 ppb (3) N/A N/A 2.6 μg/m3 (11) 26.0
 
Jan. 29, 2019, 4 a.m. 23.0 ppb (21) 2.0 ppb (2) N/A 22.0 ppb (20) N/A 0.0 ppb (0) 8.0 ppb (6) N/A N/A 2.9 μg/m3 (12) 21.0
 
Jan. 29, 2019, 3 a.m. 15.0 ppb (14) 1.0 ppb (1) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 2.3 μg/m3 (10) 14.0
 
Jan. 29, 2019, 2 a.m. 18.0 ppb (17) 0.0 ppb (0) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 17.0 ppb (13) N/A N/A 2.5 μg/m3 (10) 17.0
 
Jan. 29, 2019, 1 a.m. 10.0 ppb (9) 1.0 ppb (1) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 2.2 μg/m3 (9) 25.0
 
Jan. 29, 2019, midnight 6.0 ppb (6) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 1.8 μg/m3 (8) 28.0
 
Jan. 28, 2019, 11 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 2.2 μg/m3 (9) 30.0
 
Jan. 28, 2019, 10 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A 2.9 μg/m3 (12) 32.0
 
Jan. 28, 2019, 9 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A 5.8 μg/m3 (24) 32.0
 
Jan. 28, 2019, 8 p.m. 9.0 ppb (8) 2.0 ppb (2) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 12.1 μg/m3 (50) 50.0
 
Jan. 28, 2019, 7 p.m. 12.0 ppb (11) 4.0 ppb (4) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 18.0 μg/m3 (63) 63.0
 
Jan. 28, 2019, 6 p.m. 7.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 11.8 μg/m3 (49) 49.0
 
Jan. 28, 2019, 5 p.m. 12.0 ppb (11) 3.0 ppb (3) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 15.2 μg/m3 (57) 57.0
 
Jan. 28, 2019, 4 p.m. 31.0 ppb (29) 12.0 ppb (11) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 17.0 ppb (13) N/A N/A 21.6 μg/m3 (70) 70.0
 
Jan. 28, 2019, 3 p.m. 29.0 ppb (27) 7.0 ppb (6) N/A 22.0 ppb (20) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 26.3 μg/m3 (80) 80.0
 
Jan. 28, 2019, 2 p.m. 32.0 ppb (30) 5.0 ppb (5) N/A 27.0 ppb (25) N/A 0.0 ppb (0) 6.0 ppb (5) N/A N/A 20.5 μg/m3 (68) 68.0
 
Jan. 28, 2019, 1 p.m. 42.0 ppb (39) 15.0 ppb (14) N/A 27.0 ppb (25) N/A 0.0 ppb (0) 2.0 ppb (2) N/A N/A 10.8 μg/m3 (45) 45.0
 
Jan. 28, 2019, noon 27.0 ppb (25) 7.0 ppb (6) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 7.0 ppb (5) N/A N/A 8.3 μg/m3 (35) 35.0
 
Jan. 28, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 9.0 ppb (7) N/A N/A 7.8 μg/m3 (32) 32.0
 
Jan. 28, 2019, 10 a.m. 20.0 ppb (19) 3.0 ppb (3) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 9.0 ppb (7) N/A N/A 7.6 μg/m3 (32) 32.0
 
Jan. 28, 2019, 9 a.m. 15.0 ppb (14) 1.0 ppb (1) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 11.0 ppb (8) N/A N/A 7.9 μg/m3 (33) 33.0
 
Jan. 28, 2019, 8 a.m. 11.0 ppb (10) 1.0 ppb (1) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 14.0 ppb (11) N/A N/A 6.2 μg/m3 (26) 26.0
 
Jan. 28, 2019, 7 a.m. 16.0 ppb (15) 1.0 ppb (1) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 12.0 ppb (9) N/A N/A 6.5 μg/m3 (27) 27.0
 
Jan. 28, 2019, 6 a.m. 17.0 ppb (16) 1.0 ppb (1) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 12.0 ppb (9) N/A N/A 8.3 μg/m3 (35) 35.0
 
Jan. 28, 2019, 5 a.m. 24.0 ppb (22) 2.0 ppb (2) N/A 22.0 ppb (20) N/A 0.0 ppb (0) 9.0 ppb (7) N/A N/A 6.9 μg/m3 (29) 29.0
 
Jan. 28, 2019, 4 a.m. 22.0 ppb (20) 2.0 ppb (2) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 11.0 ppb (8) N/A N/A 6.4 μg/m3 (27) 27.0
 
Jan. 28, 2019, 3 a.m. 19.0 ppb (18) 1.0 ppb (1) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 28, 2019, 2 a.m. 19.0 ppb (18) 2.0 ppb (2) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 9.1 μg/m3 (38) 38.0
 
Jan. 28, 2019, 1 a.m. 13.0 ppb (12) 0.0 ppb (0) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 6.2 μg/m3 (26) 26.0
 
Jan. 28, 2019, midnight 11.0 ppb (10) 1.0 ppb (1) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 6.6 μg/m3 (28) 28.0
 
Jan. 27, 2019, 11 p.m. 9.0 ppb (8) 1.0 ppb (1) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 7.5 μg/m3 (31) 31.0
 
Jan. 27, 2019, 10 p.m. 9.0 ppb (8) 2.0 ppb (2) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 6.8 μg/m3 (28) 32.0
 
Jan. 27, 2019, 9 p.m. 11.0 ppb (10) 4.0 ppb (4) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 7.7 μg/m3 (32) 32.0
 
Jan. 27, 2019, 8 p.m. 9.0 ppb (8) 3.0 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 27, 2019, 7 p.m. 15.0 ppb (14) 6.0 ppb (6) N/A 8.0 ppb (7) N/A 2.0 ppb (3) 30.0 ppb (23) N/A N/A 11.1 μg/m3 (46) 46.0
 
Jan. 27, 2019, 6 p.m. 20.0 ppb (19) 8.0 ppb (7) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 12.5 μg/m3 (51) 51.0
 
Jan. 27, 2019, 5 p.m. 29.0 ppb (27) 12.0 ppb (11) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 10.5 μg/m3 (44) 44.0
 
Jan. 27, 2019, 4 p.m. 31.0 ppb (29) 12.0 ppb (11) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 14.0 ppb (11) N/A N/A 8.2 μg/m3 (34) 34.0
 
Jan. 27, 2019, 3 p.m. 28.0 ppb (26) 11.0 ppb (10) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 7.0 ppb (5) N/A N/A 6.5 μg/m3 (27) 27.0
 
Jan. 27, 2019, 2 p.m. 20.0 ppb (19) 3.0 ppb (3) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 9.0 ppb (7) N/A N/A 5.2 μg/m3 (22) 22.0
 
Jan. 27, 2019, 1 p.m. 18.0 ppb (17) 1.0 ppb (1) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 9.0 ppb (7) N/A N/A 5.1 μg/m3 (21) 21.0
 
Jan. 27, 2019, noon 23.0 ppb (21) 2.0 ppb (2) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 7.0 ppb (5) N/A N/A 6.1 μg/m3 (25) 25.0
 
Jan. 27, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 5.0 ppb (4) N/A N/A 5.7 μg/m3 (24) 24.0
 
Jan. 27, 2019, 10 a.m. 27.0 ppb (25) 3.0 ppb (3) N/A 24.0 ppb (22) N/A 0.0 ppb (0) 3.0 ppb (2) N/A N/A 5.4 μg/m3 (23) 25.0
 
Jan. 27, 2019, 9 a.m. 21.0 ppb (19) 2.0 ppb (2) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 8.0 ppb (6) N/A N/A 4.7 μg/m3 (20) 20.0
 
Jan. 27, 2019, 8 a.m. 18.0 ppb (17) 1.0 ppb (1) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 11.0 ppb (8) N/A N/A 4.7 μg/m3 (20) 20.0
 
Jan. 27, 2019, 7 a.m. 20.0 ppb (19) 1.0 ppb (1) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 9.0 ppb (7) N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 27, 2019, 6 a.m. 18.0 ppb (17) 1.0 ppb (1) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 11.0 ppb (8) N/A N/A 10.4 μg/m3 (43) 43.0
 
Jan. 27, 2019, 5 a.m. 21.0 ppb (19) 1.0 ppb (1) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 27, 2019, 4 a.m. 21.0 ppb (19) 1.0 ppb (1) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 9.4 μg/m3 (39) 39.0
 
Jan. 27, 2019, 3 a.m. 24.0 ppb (22) 3.0 ppb (3) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 11.6 μg/m3 (48) 48.0
 
Jan. 27, 2019, 2 a.m. 27.0 ppb (25) 4.0 ppb (4) N/A 23.0 ppb (21) N/A 0.0 ppb (0) 7.0 ppb (5) N/A N/A 9.6 μg/m3 (40) 40.0
 
Jan. 27, 2019, 1 a.m. 19.0 ppb (18) 1.0 ppb (1) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 8.4 μg/m3 (35) 35.0
 
Jan. 27, 2019, midnight 9.0 ppb (8) 1.0 ppb (1) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 8.8 μg/m3 (37) 37.0
 
Jan. 26, 2019, 11 p.m. 8.0 ppb (7) 2.0 ppb (2) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 13.3 μg/m3 (53) 53.0
 
Jan. 26, 2019, 10 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 10.7 μg/m3 (45) 45.0
 
Jan. 26, 2019, 9 p.m. 9.0 ppb (8) 3.0 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 13.6 μg/m3 (53) 53.0
 
Jan. 26, 2019, 8 p.m. 7.0 ppb (6) 2.0 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 12.9 μg/m3 (52) 52.0
 
Jan. 26, 2019, 7 p.m. 14.0 ppb (13) 6.0 ppb (6) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 17.3 μg/m3 (61) 61.0
 
Jan. 26, 2019, 6 p.m. 7.0 ppb (6) 2.0 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 29.0 ppb (22) N/A N/A 9.8 μg/m3 (41) 41.0
 
Jan. 26, 2019, 5 p.m. 23.0 ppb (21) 10.0 ppb (9) N/A 12.0 ppb (11) N/A 2.0 ppb (3) 26.0 ppb (20) N/A N/A 13.9 μg/m3 (54) 54.0
 
Jan. 26, 2019, 4 p.m. 39.0 ppb (36) 20.0 ppb (19) N/A 19.0 ppb (18) N/A 1.0 ppb (1) 15.0 ppb (12) N/A N/A 12.7 μg/m3 (51) 51.0
 
Jan. 26, 2019, 3 p.m. 43.0 ppb (40) 19.0 ppb (18) N/A 23.0 ppb (21) N/A 0.0 ppb (0) 7.0 ppb (5) N/A N/A 11.2 μg/m3 (47) 47.0
 
Jan. 26, 2019, 2 p.m. 35.0 ppb (32) 9.0 ppb (8) N/A 26.0 ppb (24) N/A 0.0 ppb (0) 4.0 ppb (3) N/A N/A 13.9 μg/m3 (54) 54.0
 
Jan. 26, 2019, 1 p.m. 19.0 ppb (18) 1.0 ppb (1) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 15.8 μg/m3 (58) 58.0
 
Jan. 26, 2019, noon 18.0 ppb (17) 1.0 ppb (1) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 12.1 μg/m3 (50) 50.0
 
Jan. 26, 2019, 11 a.m. 19.0 ppb (18) 1.0 ppb (1) N/A 18.0 ppb (17) N/A 0.0 ppb (0) N/A N/A N/A 12.7 μg/m3 (51) 51.0
 
Jan. 26, 2019, 10 a.m. 18.0 ppb (17) 1.0 ppb (1) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 9.0 ppb (7) N/A N/A 15.6 μg/m3 (58) 58.0
 
Jan. 26, 2019, 9 a.m. 21.0 ppb (19) 2.0 ppb (2) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 6.0 ppb (5) N/A N/A 8.7 μg/m3 (36) 36.0
 
Jan. 26, 2019, 8 a.m. 21.0 ppb (19) 2.0 ppb (2) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 8.0 ppb (6) N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 26, 2019, 7 a.m. 15.0 ppb (14) 1.0 ppb (1) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 15.0 ppb (12) N/A N/A 9.1 μg/m3 (38) 38.0
 
Jan. 26, 2019, 6 a.m. 19.0 ppb (18) 1.0 ppb (1) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 4.4 μg/m3 (18) 18.0
 
Jan. 26, 2019, 5 a.m. 23.0 ppb (21) 3.0 ppb (3) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 11.0 ppb (8) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 26, 2019, 4 a.m. 19.0 ppb (18) 2.0 ppb (2) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 4.0 μg/m3 (17) 18.0
 
Jan. 26, 2019, 3 a.m. 23.0 ppb (21) 2.0 ppb (2) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 6.5 μg/m3 (27) 27.0
 
Jan. 26, 2019, 2 a.m. 17.0 ppb (16) 1.0 ppb (1) N/A 16.0 ppb (15) N/A 2.0 ppb (3) 20.0 ppb (15) N/A N/A 5.8 μg/m3 (24) 24.0
 
Jan. 26, 2019, 1 a.m. 12.0 ppb (11) 2.0 ppb (2) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 2.3 μg/m3 (10) 27.0
 
Jan. 26, 2019, midnight 8.0 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 2.6 μg/m3 (11) 27.0
 
Jan. 25, 2019, 11 p.m. 7.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 3.3 μg/m3 (14) 28.0
 
Jan. 25, 2019, 10 p.m. 8.0 ppb (7) 2.0 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 4.4 μg/m3 (18) 30.0
 
Jan. 25, 2019, 9 p.m. 7.0 ppb (6) 2.0 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 4.1 μg/m3 (17) 32.0
 
Jan. 25, 2019, 8 p.m. 7.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 3.6 μg/m3 (15) 32.0
 
Jan. 25, 2019, 7 p.m. 14.0 ppb (13) 6.0 ppb (6) N/A 8.0 ppb (7) N/A 2.0 ppb (3) 35.0 ppb (27) N/A N/A 5.5 μg/m3 (23) 27.0
 
Jan. 25, 2019, 6 p.m. 17.0 ppb (16) 8.0 ppb (7) N/A 9.0 ppb (8) N/A 3.0 ppb (4) 29.0 ppb (22) N/A N/A 4.9 μg/m3 (20) 22.0
 
Jan. 25, 2019, 5 p.m. 17.0 ppb (16) 8.0 ppb (7) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 4.2 μg/m3 (18) 22.0
 
Jan. 25, 2019, 4 p.m. 42.0 ppb (39) 23.0 ppb (21) N/A 20.0 ppb (19) N/A 1.0 ppb (1) 16.0 ppb (12) N/A N/A 4.6 μg/m3 (19) 39.0
 
Jan. 25, 2019, 3 p.m. 52.0 ppb (48) 28.0 ppb (26) N/A 24.0 ppb (22) N/A 0.0 ppb (0) 7.0 ppb (5) N/A N/A 3.9 μg/m3 (16) 48.0
 
Jan. 25, 2019, 2 p.m. 37.0 ppb (34) 11.0 ppb (10) N/A 26.0 ppb (24) N/A 0.0 ppb (0) 5.0 ppb (4) N/A N/A 2.7 μg/m3 (11) 34.0