AQSQID: 490353006

Site Name: Hawthorne

Location: Salt Lake City, UT

Reporting: True, Located: True

Current AQI: 25.0

Salt Lake City UT, US: 40.733501, -111.871696

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 18, 2019, 3 a.m. 10.0 ppb (9) 1.0 ppb (1) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 32.0 ppb (25) 0.19 ppb (2) N/A 2.0 μg/m3 (8) 25.0
 
Jan. 18, 2019, 2 a.m. 27.0 ppb (25) 5.0 ppb (5) N/A 22.0 ppb (20) N/A 1.0 ppb (1) 20.0 ppb (15) 0.3 ppb (3) N/A 2.8 μg/m3 (12) 25.0
 
Jan. 18, 2019, 1 a.m. 38.0 ppb (35) 8.0 ppb (7) N/A 30.0 ppb (28) N/A 1.0 ppb (1) 8.0 ppb (6) 0.41 ppb (5) N/A 2.6 μg/m3 (11) 35.0
 
Jan. 18, 2019, midnight 30.0 ppb (28) 5.0 ppb (5) N/A 26.0 ppb (24) N/A 1.0 ppb (1) 13.0 ppb (10) 0.37 ppb (4) N/A 2.4 μg/m3 (10) 28.0
 
Jan. 17, 2019, 11 p.m. 25.0 ppb (23) 6.0 ppb (6) N/A 19.0 ppb (18) N/A 1.0 ppb (1) 18.0 ppb (14) 0.3 ppb (3) N/A 2.3 μg/m3 (10) 23.0
 
Jan. 17, 2019, 10 p.m. 12.0 ppb (11) 2.0 ppb (2) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 30.0 ppb (23) 0.21 ppb (2) N/A 2.4 μg/m3 (10) 23.0
 
Jan. 17, 2019, 9 p.m. 13.0 ppb (12) 2.0 ppb (2) N/A 12.0 ppb (11) N/A 1.0 ppb (1) 26.0 ppb (20) 0.2 ppb (2) N/A 2.4 μg/m3 (10) 20.0
 
Jan. 17, 2019, 8 p.m. 7.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 33.0 ppb (25) 0.17 ppb (2) N/A 1.2 μg/m3 (5) 25.0
 
Jan. 17, 2019, 7 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 35.0 ppb (27) 0.16 ppb (2) N/A 1.2 μg/m3 (5) 27.0
 
Jan. 17, 2019, 6 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 36.0 ppb (28) 0.1 ppb (1) N/A 1.0 μg/m3 (4) 28.0
 
Jan. 17, 2019, 5 p.m. 12.0 ppb (11) 2.0 ppb (2) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 31.0 ppb (24) 0.2 ppb (2) N/A 1.2 μg/m3 (5) 24.0
 
Jan. 17, 2019, 4 p.m. 14.0 ppb (13) 3.0 ppb (3) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 30.0 ppb (23) 0.22 ppb (2) N/A 1.3 μg/m3 (5) 23.0
 
Jan. 17, 2019, 3 p.m. 17.0 ppb (16) 2.0 ppb (2) N/A 15.0 ppb (14) N/A 1.0 ppb (1) 27.0 ppb (21) 0.2 ppb (2) N/A 1.2 μg/m3 (5) 21.0
 
Jan. 17, 2019, 2 p.m. 9.0 ppb (8) 1.0 ppb (1) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 35.0 ppb (27) 0.19 ppb (2) N/A 1.1 μg/m3 (5) 27.0
 
Jan. 17, 2019, 1 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 40.0 ppb (31) 0.1 ppb (1) N/A 1.0 μg/m3 (4) 31.0
 
Jan. 17, 2019, noon 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 41.0 ppb (32) 0.12 ppb (1) N/A 0.9 μg/m3 (4) 32.0
 
Jan. 17, 2019, 11 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (29) 0.1 ppb (1) N/A 0.9 μg/m3 (4) 29.0
 
Jan. 17, 2019, 10 a.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (27) 0.1 ppb (1) N/A 0.9 μg/m3 (4) 27.0
 
Jan. 17, 2019, 9 a.m. 8.0 ppb (7) 1.0 ppb (1) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 30.0 ppb (23) 0.16 ppb (2) N/A 0.9 μg/m3 (4) 23.0
 
Jan. 17, 2019, 8 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 33.0 ppb (25) 0.14 ppb (2) N/A 1.0 μg/m3 (4) 25.0
 
Jan. 17, 2019, 7 a.m. 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 34.0 ppb (26) 0.16 ppb (2) N/A 1.1 μg/m3 (5) 26.0
 
Jan. 17, 2019, 6 a.m. 18.0 ppb (17) 4.0 ppb (4) N/A 15.0 ppb (14) N/A 1.0 ppb (1) 24.0 ppb (18) 0.26 ppb (3) N/A 1.2 μg/m3 (5) 18.0
 
Jan. 17, 2019, 5 a.m. 29.0 ppb (27) 4.0 ppb (4) N/A 25.0 ppb (23) N/A 1.0 ppb (1) 13.0 ppb (10) 0.33 ppb (4) N/A 1.8 μg/m3 (8) 27.0
 
Jan. 17, 2019, 4 a.m. 17.0 ppb (16) 2.0 ppb (2) N/A 15.0 ppb (14) N/A 1.0 ppb (1) 25.0 ppb (19) 0.24 ppb (3) N/A 2.0 μg/m3 (8) 19.0
 
Jan. 17, 2019, 3 a.m. 32.0 ppb (30) 4.0 ppb (4) N/A 27.0 ppb (25) N/A 1.0 ppb (1) 13.0 ppb (10) 0.39 ppb (4) N/A 2.3 μg/m3 (10) 30.0
 
Jan. 17, 2019, 2 a.m. 30.0 ppb (28) 5.0 ppb (5) N/A 25.0 ppb (23) N/A 1.0 ppb (1) 14.0 ppb (11) 0.35 ppb (4) N/A 1.8 μg/m3 (8) 28.0
 
Jan. 17, 2019, 1 a.m. 12.0 ppb (11) 2.0 ppb (2) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 31.0 ppb (24) 0.22 ppb (2) N/A 1.3 μg/m3 (5) 24.0
 
Jan. 17, 2019, midnight 10.0 ppb (9) 2.0 ppb (2) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 33.0 ppb (25) 0.18 ppb (2) N/A 1.3 μg/m3 (5) 25.0
 
Jan. 16, 2019, 11 p.m. 9.0 ppb (8) 2.0 ppb (2) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 34.0 ppb (26) 0.1 ppb (1) N/A 1.3 μg/m3 (5) 26.0
 
Jan. 16, 2019, 10 p.m. 9.0 ppb (8) 2.0 ppb (2) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 36.0 ppb (28) 0.16 ppb (2) N/A 1.3 μg/m3 (5) 28.0
 
Jan. 16, 2019, 9 p.m. 31.0 ppb (29) 11.0 ppb (10) N/A 19.0 ppb (18) N/A 1.0 ppb (1) 25.0 ppb (19) 0.2 ppb (2) N/A 11.9 μg/m3 (50) 50.0
 
Jan. 16, 2019, 8 p.m. 38.0 ppb (35) 15.0 ppb (14) N/A 23.0 ppb (21) N/A 1.0 ppb (1) 20.0 ppb (15) 0.36 ppb (4) N/A 23.5 μg/m3 (74) 74.0
 
Jan. 16, 2019, 7 p.m. 60.0 ppb (56) 33.0 ppb (31) N/A 27.0 ppb (25) N/A 1.0 ppb (1) 15.0 ppb (12) 0.5 ppb (6) N/A 21.0 μg/m3 (69) 69.0
 
Jan. 16, 2019, 6 p.m. 49.0 ppb (45) 22.0 ppb (20) N/A 27.0 ppb (25) N/A 1.0 ppb (1) 14.0 ppb (11) 0.4 ppb (4) N/A 8.8 μg/m3 (37) 45.0
 
Jan. 16, 2019, 5 p.m. 76.0 ppb (73) 43.0 ppb (40) N/A 33.0 ppb (31) N/A 1.0 ppb (1) 7.0 ppb (5) 0.7 ppb (8) N/A 13.8 μg/m3 (54) 73.0
 
Jan. 16, 2019, 4 p.m. 122.0 ppb (104) 82.0 ppb (80) N/A 40.0 ppb (37) N/A 1.0 ppb (1) 2.0 ppb (2) 1.2 ppb (13) N/A 23.1 μg/m3 (74) 104.0
 
Jan. 16, 2019, 3 p.m. 88.0 ppb (86) 48.0 ppb (44) N/A 41.0 ppb (38) N/A 1.0 ppb (1) 1.0 ppb (1) 0.86 ppb (10) N/A 24.6 μg/m3 (77) 86.0
 
Jan. 16, 2019, 2 p.m. 56.0 ppb (52) 16.0 ppb (15) N/A 41.0 ppb (38) N/A 1.0 ppb (1) 0.0 ppb (0) 0.44 ppb (5) N/A 23.1 μg/m3 (74) 74.0
 
Jan. 16, 2019, 1 p.m. 50.0 ppb (46) 10.0 ppb (9) N/A 41.0 ppb (38) N/A 1.0 ppb (1) 1.0 ppb (1) 0.4 ppb (4) N/A 26.6 μg/m3 (81) 81.0
 
Jan. 16, 2019, noon 47.0 ppb (44) 7.0 ppb (6) N/A 41.0 ppb (38) N/A 1.0 ppb (1) 1.0 ppb (1) 0.3 ppb (3) N/A 28.9 μg/m3 (86) 86.0
 
Jan. 16, 2019, 11 a.m. 43.0 ppb (40) 4.0 ppb (4) N/A 40.0 ppb (37) N/A 1.0 ppb (1) N/A 0.32 ppb (4) N/A 30.3 μg/m3 (89) 89.0
 
Jan. 16, 2019, 10 a.m. 41.0 ppb (38) 2.0 ppb (2) N/A 39.0 ppb (36) N/A 1.0 ppb (1) 5.0 ppb (4) 0.36 ppb (4) N/A 32.2 μg/m3 (93) 93.0
 
Jan. 16, 2019, 9 a.m. 44.0 ppb (41) 3.0 ppb (3) N/A 41.0 ppb (38) N/A 1.0 ppb (1) 3.0 ppb (2) 0.3 ppb (3) N/A 30.3 μg/m3 (89) 89.0
 
Jan. 16, 2019, 8 a.m. 56.0 ppb (52) 10.0 ppb (9) N/A 46.0 ppb (43) N/A 1.0 ppb (1) 1.0 ppb (1) 0.45 ppb (5) N/A 25.9 μg/m3 (80) 80.0
 
Jan. 16, 2019, 7 a.m. 41.0 ppb (38) 2.0 ppb (2) N/A 40.0 ppb (37) N/A 1.0 ppb (1) 4.0 ppb (3) 0.42 ppb (5) N/A 24.8 μg/m3 (77) 77.0
 
Jan. 16, 2019, 6 a.m. 37.0 ppb (34) 1.0 ppb (1) N/A 37.0 ppb (34) N/A 1.0 ppb (1) 7.0 ppb (5) 0.36 ppb (4) N/A 24.7 μg/m3 (77) 77.0
 
Jan. 16, 2019, 5 a.m. 39.0 ppb (36) 2.0 ppb (2) N/A 38.0 ppb (35) N/A 0.0 ppb (0) 7.0 ppb (5) 0.3 ppb (3) N/A 23.4 μg/m3 (74) 74.0
 
Jan. 16, 2019, 4 a.m. 35.0 ppb (32) 1.0 ppb (1) N/A 34.0 ppb (31) N/A 1.0 ppb (1) 9.0 ppb (7) 0.32 ppb (4) N/A 22.0 μg/m3 (71) 71.0
 
Jan. 16, 2019, 3 a.m. 30.0 ppb (28) 1.0 ppb (1) N/A 29.0 ppb (27) N/A 1.0 ppb (1) 15.0 ppb (12) 0.31 ppb (3) N/A 20.3 μg/m3 (68) 68.0
 
Jan. 16, 2019, 2 a.m. 34.0 ppb (31) 1.0 ppb (1) N/A 33.0 ppb (31) N/A 1.0 ppb (1) 13.0 ppb (10) 0.36 ppb (4) N/A 20.3 μg/m3 (68) 68.0
 
Jan. 16, 2019, 1 a.m. 36.0 ppb (33) 2.0 ppb (2) N/A 35.0 ppb (32) N/A 1.0 ppb (1) 11.0 ppb (8) 0.36 ppb (4) N/A 21.0 μg/m3 (69) 69.0
 
Jan. 16, 2019, midnight 35.0 ppb (32) 3.0 ppb (3) N/A 33.0 ppb (31) N/A 1.0 ppb (1) 14.0 ppb (11) 0.3 ppb (3) N/A 19.3 μg/m3 (66) 66.0
 
Jan. 15, 2019, 11 p.m. 37.0 ppb (34) 6.0 ppb (6) N/A 31.0 ppb (29) N/A 1.0 ppb (1) 17.0 ppb (13) 0.3 ppb (3) N/A 21.8 μg/m3 (71) 71.0
 
Jan. 15, 2019, 10 p.m. 39.0 ppb (36) 10.0 ppb (9) N/A 28.0 ppb (26) N/A 1.0 ppb (1) 19.0 ppb (15) 0.35 ppb (4) N/A 25.4 μg/m3 (79) 79.0
 
Jan. 15, 2019, 9 p.m. 49.0 ppb (45) 19.0 ppb (18) N/A 31.0 ppb (29) N/A 1.0 ppb (1) 19.0 ppb (15) 0.3 ppb (3) N/A 26.7 μg/m3 (81) 81.0
 
Jan. 15, 2019, 8 p.m. 45.0 ppb (42) 17.0 ppb (16) N/A 28.0 ppb (26) N/A 1.0 ppb (1) 18.0 ppb (14) 0.3 ppb (3) N/A 25.3 μg/m3 (78) 78.0
 
Jan. 15, 2019, 7 p.m. 65.0 ppb (62) 31.0 ppb (29) N/A 34.0 ppb (31) N/A 1.0 ppb (1) 13.0 ppb (10) 0.46 ppb (5) N/A 27.0 μg/m3 (82) 82.0
 
Jan. 15, 2019, 6 p.m. 107.0 ppb (101) 63.0 ppb (60) N/A 44.0 ppb (41) N/A 1.0 ppb (1) 6.0 ppb (5) 0.71 ppb (8) N/A 27.2 μg/m3 (82) 101.0
 
Jan. 15, 2019, 5 p.m. 86.0 ppb (84) 47.0 ppb (44) N/A 40.0 ppb (37) N/A 1.0 ppb (1) 6.0 ppb (5) 0.66 ppb (7) N/A 24.6 μg/m3 (77) 84.0
 
Jan. 15, 2019, 4 p.m. 91.0 ppb (89) 50.0 ppb (46) N/A 41.0 ppb (38) N/A 1.0 ppb (1) 4.0 ppb (3) 0.65 ppb (7) N/A 24.5 μg/m3 (77) 89.0
 
Jan. 15, 2019, 3 p.m. 71.0 ppb (68) 30.0 ppb (28) N/A 41.0 ppb (38) N/A 1.0 ppb (1) 2.0 ppb (2) 0.6 ppb (7) N/A 23.2 μg/m3 (74) 74.0
 
Jan. 15, 2019, 2 p.m. 59.0 ppb (55) 20.0 ppb (19) N/A 39.0 ppb (36) N/A 1.0 ppb (1) 1.0 ppb (1) 0.53 ppb (6) N/A 21.9 μg/m3 (71) 71.0
 
Jan. 15, 2019, 1 p.m. 69.0 ppb (66) 28.0 ppb (26) N/A 42.0 ppb (39) N/A 1.0 ppb (1) 0.0 ppb (0) 0.49 ppb (5) N/A 19.4 μg/m3 (66) 66.0
 
Jan. 15, 2019, noon 67.0 ppb (64) 23.0 ppb (21) N/A 44.0 ppb (41) N/A 1.0 ppb (1) 1.0 ppb (1) 0.46 ppb (5) N/A 19.8 μg/m3 (67) 67.0
 
Jan. 15, 2019, 11 a.m. 69.0 ppb (66) 26.0 ppb (24) N/A 44.0 ppb (41) N/A N/A 1.0 ppb (1) 0.47 ppb (5) N/A 18.8 μg/m3 (64) 66.0
 
Jan. 15, 2019, 10 a.m. 72.0 ppb (69) 29.0 ppb (27) N/A 44.0 ppb (41) N/A 1.0 ppb (1) 1.0 ppb (1) 0.48 ppb (5) N/A 18.2 μg/m3 (63) 69.0
 
Jan. 15, 2019, 9 a.m. 58.0 ppb (54) 16.0 ppb (15) N/A 42.0 ppb (39) N/A 1.0 ppb (1) 1.0 ppb (1) 0.47 ppb (5) N/A 16.5 μg/m3 (60) 60.0
 
Jan. 15, 2019, 8 a.m. 47.0 ppb (44) 9.0 ppb (8) N/A 39.0 ppb (36) N/A 0.0 ppb (0) 2.0 ppb (2) 0.4 ppb (4) N/A 15.7 μg/m3 (58) 58.0
 
Jan. 15, 2019, 7 a.m. 90.0 ppb (88) 47.0 ppb (44) N/A 43.0 ppb (40) N/A 1.0 ppb (1) 1.0 ppb (1) 0.6 ppb (7) N/A 15.7 μg/m3 (58) 88.0
 
Jan. 15, 2019, 6 a.m. 77.0 ppb (74) 34.0 ppb (31) N/A 43.0 ppb (40) N/A 1.0 ppb (1) 0.0 ppb (0) 0.57 ppb (6) N/A 14.6 μg/m3 (56) 74.0
 
Jan. 15, 2019, 5 a.m. 53.0 ppb (49) 11.0 ppb (10) N/A 42.0 ppb (39) N/A 0.0 ppb (0) 1.0 ppb (1) 0.52 ppb (6) N/A 14.0 μg/m3 (54) 54.0
 
Jan. 15, 2019, 4 a.m. 48.0 ppb (44) 7.0 ppb (6) N/A 41.0 ppb (38) N/A 0.0 ppb (0) 2.0 ppb (2) 0.53 ppb (6) N/A 13.1 μg/m3 (52) 52.0
 
Jan. 15, 2019, 3 a.m. 40.0 ppb (37) 4.0 ppb (4) N/A 36.0 ppb (33) N/A 0.0 ppb (0) 7.0 ppb (5) 0.43 ppb (5) N/A 11.8 μg/m3 (49) 49.0
 
Jan. 15, 2019, 2 a.m. 22.0 ppb (20) 1.0 ppb (1) N/A 22.0 ppb (20) N/A 0.0 ppb (0) 22.0 ppb (17) 0.2 ppb (2) N/A 10.8 μg/m3 (45) 45.0
 
Jan. 15, 2019, 1 a.m. 20.0 ppb (19) 1.0 ppb (1) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 25.0 ppb (19) 0.26 ppb (3) N/A 11.3 μg/m3 (47) 47.0
 
Jan. 15, 2019, midnight 23.0 ppb (21) 2.0 ppb (2) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 24.0 ppb (18) 0.2 ppb (2) N/A 13.8 μg/m3 (54) 54.0
 
Jan. 14, 2019, 11 p.m. 23.0 ppb (21) 4.0 ppb (4) N/A 20.0 ppb (19) N/A 1.0 ppb (1) 26.0 ppb (20) 0.2 ppb (2) N/A 16.0 μg/m3 (59) 59.0
 
Jan. 14, 2019, 10 p.m. 25.0 ppb (23) 7.0 ppb (6) N/A 18.0 ppb (17) N/A 1.0 ppb (1) 28.0 ppb (22) 0.31 ppb (3) N/A 19.0 μg/m3 (65) 65.0
 
Jan. 14, 2019, 9 p.m. 30.0 ppb (28) 11.0 ppb (10) N/A 20.0 ppb (19) N/A 1.0 ppb (1) 27.0 ppb (21) 0.29 ppb (3) N/A 21.3 μg/m3 (70) 70.0
 
Jan. 14, 2019, 8 p.m. 49.0 ppb (45) 22.0 ppb (20) N/A 27.0 ppb (25) N/A 1.0 ppb (1) 21.0 ppb (16) 0.4 ppb (4) N/A 26.1 μg/m3 (80) 80.0
 
Jan. 14, 2019, 7 p.m. 39.0 ppb (36) 18.0 ppb (17) N/A 21.0 ppb (19) N/A 1.0 ppb (1) 22.0 ppb (17) 0.3 ppb (3) N/A 24.1 μg/m3 (76) 76.0
 
Jan. 14, 2019, 6 p.m. 32.0 ppb (30) 14.0 ppb (13) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 23.0 ppb (18) 0.3 ppb (3) N/A 23.0 μg/m3 (73) 73.0
 
Jan. 14, 2019, 5 p.m. 27.0 ppb (25) 10.0 ppb (9) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 23.0 ppb (18) 0.3 ppb (3) N/A 21.7 μg/m3 (71) 71.0
 
Jan. 14, 2019, 4 p.m. 23.0 ppb (21) 7.0 ppb (6) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 21.0 ppb (16) 0.3 ppb (3) N/A 20.5 μg/m3 (68) 68.0
 
Jan. 14, 2019, 3 p.m. 30.0 ppb (28) 8.0 ppb (7) N/A 23.0 ppb (21) N/A 0.0 ppb (0) 15.0 ppb (12) 0.3 ppb (3) N/A 20.1 μg/m3 (67) 67.0
 
Jan. 14, 2019, 2 p.m. 39.0 ppb (36) 9.0 ppb (8) N/A 30.0 ppb (28) N/A 0.0 ppb (0) 8.0 ppb (6) 0.4 ppb (4) N/A 18.8 μg/m3 (64) 64.0
 
Jan. 14, 2019, 1 p.m. 38.0 ppb (35) 7.0 ppb (6) N/A 31.0 ppb (29) N/A 0.0 ppb (0) 9.0 ppb (7) 0.35 ppb (4) N/A 13.2 μg/m3 (53) 53.0
 
Jan. 14, 2019, noon 26.0 ppb (24) 3.0 ppb (3) N/A 23.0 ppb (21) N/A 0.0 ppb (0) 14.0 ppb (11) 0.3 ppb (3) N/A 17.2 μg/m3 (61) 61.0
 
Jan. 14, 2019, 11 a.m. 19.0 ppb (18) 1.0 ppb (1) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 19.0 μg/m3 (65) 65.0
 
Jan. 14, 2019, 10 a.m. 16.0 ppb (15) 1.0 ppb (1) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 21.0 ppb (16) 0.2 ppb (2) N/A 19.8 μg/m3 (67) 67.0
 
Jan. 14, 2019, 9 a.m. 16.0 ppb (15) 1.0 ppb (1) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 22.0 ppb (17) 0.23 ppb (3) N/A 20.0 μg/m3 (67) 67.0
 
Jan. 14, 2019, 8 a.m. 19.0 ppb (18) 1.0 ppb (1) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 18.0 ppb (14) 0.26 ppb (3) N/A 19.1 μg/m3 (65) 65.0
 
Jan. 14, 2019, 7 a.m. 19.0 ppb (18) 1.0 ppb (1) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 18.0 ppb (14) 0.2 ppb (2) N/A 16.9 μg/m3 (60) 60.0
 
Jan. 14, 2019, 6 a.m. 21.0 ppb (19) 1.0 ppb (1) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 17.0 ppb (13) 0.25 ppb (3) N/A 19.0 μg/m3 (65) 65.0
 
Jan. 14, 2019, 5 a.m. 18.0 ppb (17) 1.0 ppb (1) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 20.0 ppb (15) 0.2 ppb (2) N/A 19.3 μg/m3 (66) 66.0
 
Jan. 14, 2019, 4 a.m. 16.0 ppb (15) 1.0 ppb (1) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 25.0 ppb (19) 0.22 ppb (2) N/A 14.4 μg/m3 (55) 55.0
 
Jan. 14, 2019, 3 a.m. 17.0 ppb (16) 1.0 ppb (1) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 24.0 ppb (18) 0.21 ppb (2) N/A 11.7 μg/m3 (49) 49.0
 
Jan. 14, 2019, 2 a.m. 13.0 ppb (12) 1.0 ppb (1) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 29.0 ppb (22) 0.2 ppb (2) N/A 10.4 μg/m3 (43) 43.0
 
Jan. 14, 2019, 1 a.m. 14.0 ppb (13) 1.0 ppb (1) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 28.0 ppb (22) 0.2 ppb (2) N/A 12.6 μg/m3 (51) 51.0
 
Jan. 14, 2019, midnight 15.0 ppb (14) 1.0 ppb (1) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 28.0 ppb (22) 0.2 ppb (2) N/A 14.6 μg/m3 (56) 56.0
 
Jan. 13, 2019, 11 p.m. 14.0 ppb (13) 2.0 ppb (2) N/A 12.0 ppb (11) N/A 1.0 ppb (1) 29.0 ppb (22) 0.22 ppb (2) N/A 16.6 μg/m3 (60) 60.0
 
Jan. 13, 2019, 10 p.m. 13.0 ppb (12) 3.0 ppb (3) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 32.0 ppb (25) 0.2 ppb (2) N/A 15.9 μg/m3 (58) 58.0
 
Jan. 13, 2019, 9 p.m. 14.0 ppb (13) 4.0 ppb (4) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 32.0 ppb (25) 0.2 ppb (2) N/A 14.6 μg/m3 (56) 56.0
 
Jan. 13, 2019, 8 p.m. 16.0 ppb (15) 5.0 ppb (5) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 31.0 ppb (24) 0.23 ppb (3) N/A 15.6 μg/m3 (58) 58.0
 
Jan. 13, 2019, 7 p.m. 18.0 ppb (17) 6.0 ppb (6) N/A 12.0 ppb (11) N/A 1.0 ppb (1) 29.0 ppb (22) 0.2 ppb (2) N/A 17.4 μg/m3 (61) 61.0
 
Jan. 13, 2019, 6 p.m. 20.0 ppb (19) 7.0 ppb (6) N/A 13.0 ppb (12) N/A 1.0 ppb (1) 27.0 ppb (21) 0.2 ppb (2) N/A 16.9 μg/m3 (60) 60.0
 
Jan. 13, 2019, 5 p.m. 16.0 ppb (15) 5.0 ppb (5) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 27.0 ppb (21) 0.2 ppb (2) N/A 15.3 μg/m3 (57) 57.0
 
Jan. 13, 2019, 4 p.m. 19.0 ppb (18) 5.0 ppb (5) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 25.0 ppb (19) 0.24 ppb (3) N/A 9.2 μg/m3 (38) 38.0
 
Jan. 13, 2019, 3 p.m. 19.0 ppb (18) 3.0 ppb (3) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 20.0 ppb (15) 0.24 ppb (3) N/A 13.6 μg/m3 (53) 53.0
 
Jan. 13, 2019, 2 p.m. 19.0 ppb (18) 2.0 ppb (2) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 18.0 ppb (14) 0.2 ppb (2) N/A 13.0 μg/m3 (52) 52.0
 
Jan. 13, 2019, 1 p.m. 17.0 ppb (16) 1.0 ppb (1) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 20.0 ppb (15) 0.2 ppb (2) N/A 12.3 μg/m3 (51) 51.0
 
Jan. 13, 2019, noon 16.0 ppb (15) 1.0 ppb (1) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 21.0 ppb (16) 0.2 ppb (2) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 13, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 18.0 ppb (14) 0.21 ppb (2) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 13, 2019, 10 a.m. 19.0 ppb (18) 1.0 ppb (1) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 18.0 ppb (14) 0.2 ppb (2) N/A 12.8 μg/m3 (52) 52.0
 
Jan. 13, 2019, 9 a.m. 18.0 ppb (17) 1.0 ppb (1) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 18.0 ppb (14) 0.24 ppb (3) N/A 17.6 μg/m3 (62) 62.0
 
Jan. 13, 2019, 8 a.m. 18.0 ppb (17) 1.0 ppb (1) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 19.0 ppb (15) 0.24 ppb (3) N/A 19.0 μg/m3 (65) 65.0
 
Jan. 13, 2019, 7 a.m. 18.0 ppb (17) 1.0 ppb (1) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 19.0 ppb (15) 0.2 ppb (2) N/A 18.7 μg/m3 (64) 64.0
 
Jan. 13, 2019, 6 a.m. 18.0 ppb (17) 1.0 ppb (1) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 21.0 ppb (16) 0.25 ppb (3) N/A 17.8 μg/m3 (62) 62.0
 
Jan. 13, 2019, 5 a.m. 25.0 ppb (23) 2.0 ppb (2) N/A 23.0 ppb (21) N/A 0.0 ppb (0) 16.0 ppb (12) 0.2 ppb (2) N/A 20.1 μg/m3 (67) 67.0
 
Jan. 13, 2019, 4 a.m. 21.0 ppb (19) 1.0 ppb (1) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 19.0 ppb (15) 0.25 ppb (3) N/A 18.4 μg/m3 (64) 64.0
 
Jan. 13, 2019, 3 a.m. 20.0 ppb (19) 1.0 ppb (1) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 20.0 ppb (15) 0.24 ppb (3) N/A 17.2 μg/m3 (61) 61.0
 
Jan. 13, 2019, 2 a.m. 21.0 ppb (19) 1.0 ppb (1) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 21.0 ppb (16) 0.23 ppb (3) N/A 16.1 μg/m3 (59) 59.0
 
Jan. 13, 2019, 1 a.m. 21.0 ppb (19) 1.0 ppb (1) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 21.0 ppb (16) 0.2 ppb (2) N/A 16.9 μg/m3 (60) 60.0
 
Jan. 13, 2019, midnight 21.0 ppb (19) 1.0 ppb (1) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 22.0 ppb (17) 0.25 ppb (3) N/A 18.9 μg/m3 (65) 65.0
 
Jan. 12, 2019, 11 p.m. 21.0 ppb (19) 2.0 ppb (2) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 22.0 ppb (17) 0.25 ppb (3) N/A 19.9 μg/m3 (67) 67.0
 
Jan. 12, 2019, 10 p.m. 20.0 ppb (19) 3.0 ppb (3) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 22.0 ppb (17) 0.26 ppb (3) N/A 17.8 μg/m3 (62) 62.0
 
Jan. 12, 2019, 9 p.m. 25.0 ppb (23) 5.0 ppb (5) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 18.0 ppb (14) 0.29 ppb (3) N/A 20.7 μg/m3 (69) 69.0
 
Jan. 12, 2019, 8 p.m. 27.0 ppb (25) 6.0 ppb (6) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 17.0 ppb (13) 0.3 ppb (3) N/A 22.1 μg/m3 (71) 71.0
 
Jan. 12, 2019, 7 p.m. 29.0 ppb (27) 7.0 ppb (6) N/A 22.0 ppb (20) N/A 0.0 ppb (0) 16.0 ppb (12) 0.31 ppb (3) N/A 22.3 μg/m3 (72) 72.0
 
Jan. 12, 2019, 6 p.m. 25.0 ppb (23) 7.0 ppb (6) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 18.0 ppb (14) 0.3 ppb (3) N/A 22.5 μg/m3 (72) 72.0
 
Jan. 12, 2019, 5 p.m. 20.0 ppb (19) 5.0 ppb (5) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 21.0 ppb (16) 0.2 ppb (2) N/A 21.8 μg/m3 (71) 71.0
 
Jan. 12, 2019, 4 p.m. 42.0 ppb (39) 17.0 ppb (16) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 10.0 ppb (8) 0.46 ppb (5) N/A 24.8 μg/m3 (77) 77.0
 
Jan. 12, 2019, 3 p.m. 65.0 ppb (62) 33.0 ppb (31) N/A 32.0 ppb (30) N/A 0.0 ppb (0) 3.0 ppb (2) 0.83 ppb (9) N/A 20.3 μg/m3 (68) 68.0
 
Jan. 12, 2019, 2 p.m. 59.0 ppb (55) 24.0 ppb (22) N/A 35.0 ppb (32) N/A 0.0 ppb (0) 1.0 ppb (1) 0.4 ppb (4) N/A 16.7 μg/m3 (60) 60.0
 
Jan. 12, 2019, 1 p.m. 40.0 ppb (37) 10.0 ppb (9) N/A 30.0 ppb (28) N/A 0.0 ppb (0) 3.0 ppb (2) 0.35 ppb (4) N/A 16.7 μg/m3 (60) 60.0
 
Jan. 12, 2019, noon 39.0 ppb (36) 10.0 ppb (9) N/A 29.0 ppb (27) N/A 0.0 ppb (0) 4.0 ppb (3) 0.3 ppb (3) N/A 15.5 μg/m3 (57) 57.0
 
Jan. 12, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 1.0 ppb (1) 0.33 ppb (4) N/A 11.9 μg/m3 (50) 50.0
 
Jan. 12, 2019, 10 a.m. 43.0 ppb (40) 11.0 ppb (10) N/A 32.0 ppb (30) N/A 0.0 ppb (0) 1.0 ppb (1) 0.3 ppb (3) N/A 8.1 μg/m3 (34) 40.0
 
Jan. 12, 2019, 9 a.m. 34.0 ppb (31) 5.0 ppb (5) N/A 28.0 ppb (26) N/A 0.0 ppb (0) 3.0 ppb (2) 0.28 ppb (3) N/A 7.6 μg/m3 (32) 32.0
 
Jan. 12, 2019, 8 a.m. 29.0 ppb (27) 4.0 ppb (4) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 6.0 ppb (5) 0.26 ppb (3) N/A 7.9 μg/m3 (33) 33.0
 
Jan. 12, 2019, 7 a.m. 22.0 ppb (20) 2.0 ppb (2) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 13.0 ppb (10) 0.28 ppb (3) N/A 11.1 μg/m3 (46) 46.0
 
Jan. 12, 2019, 6 a.m. 26.0 ppb (24) 2.0 ppb (2) N/A 24.0 ppb (22) N/A 0.0 ppb (0) 11.0 ppb (8) 0.31 ppb (3) N/A 17.5 μg/m3 (62) 62.0
 
Jan. 12, 2019, 5 a.m. 24.0 ppb (22) 2.0 ppb (2) N/A 22.0 ppb (20) N/A 0.0 ppb (0) 14.0 ppb (11) 0.29 ppb (3) N/A 19.0 μg/m3 (65) 65.0
 
Jan. 12, 2019, 4 a.m. 30.0 ppb (28) 3.0 ppb (3) N/A 27.0 ppb (25) N/A 0.0 ppb (0) 11.0 ppb (8) 0.31 ppb (3) N/A 20.0 μg/m3 (67) 67.0
 
Jan. 12, 2019, 3 a.m. 32.0 ppb (30) 2.0 ppb (2) N/A 30.0 ppb (28) N/A 0.0 ppb (0) 6.0 ppb (5) 0.36 ppb (4) N/A 17.5 μg/m3 (62) 62.0
 
Jan. 12, 2019, 2 a.m. 27.0 ppb (25) 2.0 ppb (2) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 12.0 ppb (9) 0.2 ppb (2) N/A 15.8 μg/m3 (58) 58.0
 
Jan. 12, 2019, 1 a.m. 27.0 ppb (25) 1.0 ppb (1) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 12.0 ppb (9) 0.25 ppb (3) N/A 14.4 μg/m3 (55) 55.0
 
Jan. 12, 2019, midnight 25.0 ppb (23) 2.0 ppb (2) N/A 24.0 ppb (22) N/A 0.0 ppb (0) 17.0 ppb (13) 0.27 ppb (3) N/A 15.9 μg/m3 (58) 58.0
 
Jan. 11, 2019, 11 p.m. 28.0 ppb (26) 3.0 ppb (3) N/A 25.0 ppb (23) N/A 1.0 ppb (1) 14.0 ppb (11) 0.28 ppb (3) N/A 20.5 μg/m3 (68) 68.0
 
Jan. 11, 2019, 10 p.m. 22.0 ppb (20) 3.0 ppb (3) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 20.0 ppb (15) 0.24 ppb (3) N/A 19.6 μg/m3 (66) 66.0
 
Jan. 11, 2019, 9 p.m. 31.0 ppb (29) 6.0 ppb (6) N/A 25.0 ppb (23) N/A 1.0 ppb (1) 16.0 ppb (12) 0.28 ppb (3) N/A 36.6 μg/m3 (103) 103.0
 
Jan. 11, 2019, 8 p.m. 53.0 ppb (49) 20.0 ppb (19) N/A 33.0 ppb (31) N/A 1.0 ppb (1) 8.0 ppb (6) 0.39 ppb (4) N/A 56.3 μg/m3 (150) 150.0
 
Jan. 11, 2019, 7 p.m. 54.0 ppb (50) 23.0 ppb (21) N/A 31.0 ppb (29) N/A 1.0 ppb (1) 8.0 ppb (6) 0.4 ppb (4) N/A 65.3 μg/m3 (155) 155.0
 
Jan. 11, 2019, 6 p.m. 58.0 ppb (54) 27.0 ppb (25) N/A 31.0 ppb (29) N/A 0.0 ppb (0) 5.0 ppb (4) 0.4 ppb (4) N/A 75.2 μg/m3 (160) 160.0
 
Jan. 11, 2019, 5 p.m. 59.0 ppb (55) 27.0 ppb (25) N/A 32.0 ppb (30) N/A 1.0 ppb (1) 3.0 ppb (2) 0.35 ppb (4) N/A N/A 55.0
 
Jan. 11, 2019, 4 p.m. 59.0 ppb (55) 26.0 ppb (24) N/A 34.0 ppb (31) N/A 1.0 ppb (1) 3.0 ppb (2) 0.4 ppb (4) N/A 36.6 μg/m3 (103) 103.0
 
Jan. 11, 2019, 3 p.m. 58.0 ppb (54) 24.0 ppb (22) N/A 34.0 ppb (31) N/A 1.0 ppb (1) 1.0 ppb (1) 0.5 ppb (6) N/A 31.4 μg/m3 (91) 91.0
 
Jan. 11, 2019, 2 p.m. 39.0 ppb (36) 9.0 ppb (8) N/A 31.0 ppb (29) N/A 0.0 ppb (0) 1.0 ppb (1) 0.39 ppb (4) N/A 27.4 μg/m3 (83) 83.0
 
Jan. 11, 2019, 1 p.m. 27.0 ppb (25) 3.0 ppb (3) N/A 24.0 ppb (22) N/A 0.0 ppb (0) 6.0 ppb (5) 0.28 ppb (3) N/A 27.8 μg/m3 (84) 84.0
 
Jan. 11, 2019, noon 47.0 ppb (44) 13.0 ppb (12) N/A 34.0 ppb (31) N/A 0.0 ppb (0) 1.0 ppb (1) 0.3 ppb (3) N/A 32.1 μg/m3 (93) 93.0
 
Jan. 11, 2019, 11 a.m. 56.0 ppb (52) 20.0 ppb (19) N/A 36.0 ppb (33) N/A 0.0 ppb (0) 0.0 ppb (0) 0.3 ppb (3) N/A 31.9 μg/m3 (92) 92.0
 
Jan. 11, 2019, 10 a.m. 57.0 ppb (53) 21.0 ppb (19) N/A 36.0 ppb (33) N/A 1.0 ppb (1) 0.0 ppb (0) 0.33 ppb (4) N/A 27.9 μg/m3 (84) 84.0
 
Jan. 11, 2019, 9 a.m. 37.0 ppb (34) 4.0 ppb (4) N/A 33.0 ppb (31) N/A 0.0 ppb (0) 2.0 ppb (2) 0.2 ppb (2) N/A 28.9 μg/m3 (86) 86.0
 
Jan. 11, 2019, 8 a.m. 51.0 ppb (47) 15.0 ppb (14) N/A 36.0 ppb (33) N/A 1.0 ppb (1) 0.0 ppb (0) 0.4 ppb (4) N/A 34.6 μg/m3 (98) 98.0
 
Jan. 11, 2019, 7 a.m. 77.0 ppb (74) 36.0 ppb (33) N/A 41.0 ppb (38) N/A 1.0 ppb (1) 0.0 ppb (0) 0.66 ppb (7) N/A 40.7 μg/m3 (113) 113.0
 
Jan. 11, 2019, 6 a.m. 144.0 ppb (108) 106.0 ppb (101) N/A 38.0 ppb (35) N/A 1.0 ppb (1) 0.0 ppb (0) 1.14 ppb (13) N/A 40.4 μg/m3 (112) 112.0
 
Jan. 11, 2019, 5 a.m. 155.0 ppb (110) 117.0 ppb (103) N/A 38.0 ppb (35) N/A 1.0 ppb (1) 1.0 ppb (1) 1.3 ppb (14) N/A 40.3 μg/m3 (112) 112.0
 
Jan. 11, 2019, 4 a.m. 123.0 ppb (104) 83.0 ppb (81) N/A 41.0 ppb (38) N/A 1.0 ppb (1) 1.0 ppb (1) 1.01 ppb (11) N/A 41.8 μg/m3 (116) 116.0