AQSQID: 490353010

Site Name: Rose Park

Location: Salt Lake City (Rose Park), UT

Reporting: True, Located: True

Current AQI: 88.0

Salt Lake City (Rose Park) UT, US: 40.7955, -111.9309

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 20, 2020, 9 p.m. 58.7 ppb (55) 21.3 ppb (20) N/A 37.0 ppb (34) N/A 2.0 ppb (3) 8.0 ppb (6) 0.2 ppb (2) N/A 30.0 μg/m3 (88) 88.0
 
Jan. 20, 2020, 8 p.m. 41.7 ppb (39) 14.8 ppb (14) N/A 27.0 ppb (25) N/A 1.0 ppb (1) 12.0 ppb (9) 0.2 ppb (2) N/A 26.5 μg/m3 (81) 81.0
 
Jan. 20, 2020, 7 p.m. 32.2 ppb (30) 9.8 ppb (9) N/A 22.0 ppb (20) N/A 1.0 ppb (1) 13.0 ppb (10) 0.1 ppb (1) N/A 23.8 μg/m3 (75) 75.0
 
Jan. 20, 2020, 6 p.m. 65.2 ppb (62) 28.4 ppb (26) N/A 37.0 ppb (34) N/A 2.0 ppb (3) 9.0 ppb (7) 0.3 ppb (3) N/A 30.3 μg/m3 (89) 89.0
 
Jan. 20, 2020, 5 p.m. 78.4 ppb (76) 44.1 ppb (41) N/A 34.0 ppb (31) N/A 2.0 ppb (3) 3.0 ppb (2) 0.3 ppb (3) N/A 27.8 μg/m3 (84) 84.0
 
Jan. 20, 2020, 4 p.m. 93.0 ppb (91) 56.2 ppb (52) N/A 37.0 ppb (34) N/A 2.0 ppb (3) 1.0 ppb (1) 0.4 ppb (4) N/A 24.7 μg/m3 (77) 91.0
 
Jan. 20, 2020, 3 p.m. 133.6 ppb (106) 91.5 ppb (90) N/A 42.0 ppb (39) N/A 2.0 ppb (3) -1.0 ppb (0) 0.8 ppb (9) N/A 20.5 μg/m3 (68) 106.0
 
Jan. 20, 2020, 2 p.m. 87.3 ppb (85) 50.7 ppb (47) N/A 36.0 ppb (33) N/A 1.0 ppb (1) -3.0 ppb (0) 0.5 ppb (6) N/A 17.5 μg/m3 (62) 85.0
 
Jan. 20, 2020, 1 p.m. 70.6 ppb (68) 35.3 ppb (33) N/A 35.0 ppb (32) N/A 1.0 ppb (1) -2.0 ppb (0) 0.4 ppb (4) N/A 16.7 μg/m3 (60) 68.0
 
Jan. 20, 2020, noon 68.7 ppb (66) 33.3 ppb (31) N/A 35.0 ppb (32) N/A 1.0 ppb (1) -2.0 ppb (0) 0.4 ppb (4) N/A 17.8 μg/m3 (62) 66.0
 
Jan. 20, 2020, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) -2.0 ppb (0) 0.6 ppb (7) N/A 19.9 μg/m3 (67) 67.0
 
Jan. 20, 2020, 10 a.m. 93.0 ppb (91) 50.9 ppb (47) N/A 42.0 ppb (39) N/A 1.0 ppb (1) -2.0 ppb (0) 0.6 ppb (7) N/A 18.3 μg/m3 (63) 91.0
 
Jan. 20, 2020, 9 a.m. 97.5 ppb (96) 56.1 ppb (52) N/A 41.0 ppb (38) N/A 1.0 ppb (1) -2.0 ppb (0) 0.6 ppb (7) N/A 16.4 μg/m3 (59) 96.0
 
Jan. 20, 2020, 8 a.m. 96.5 ppb (95) 54.6 ppb (51) N/A 42.0 ppb (39) N/A 1.0 ppb (1) -2.0 ppb (0) 0.6 ppb (7) N/A 15.2 μg/m3 (57) 95.0
 
Jan. 20, 2020, 7 a.m. 78.4 ppb (76) 38.4 ppb (36) N/A 40.0 ppb (37) N/A 1.0 ppb (1) -2.0 ppb (0) 0.5 ppb (6) N/A 13.1 μg/m3 (52) 76.0
 
Jan. 20, 2020, 6 a.m. 70.6 ppb (68) 30.9 ppb (29) N/A 39.0 ppb (36) N/A 1.0 ppb (1) -2.0 ppb (0) 0.5 ppb (6) N/A 19.6 μg/m3 (66) 68.0
 
Jan. 20, 2020, 5 a.m. 64.4 ppb (61) 24.1 ppb (22) N/A 40.0 ppb (37) N/A 0.0 ppb (0) -2.0 ppb (0) 0.4 ppb (4) N/A 25.6 μg/m3 (79) 79.0
 
Jan. 20, 2020, 4 a.m. 45.4 ppb (42) 7.8 ppb (7) N/A 37.0 ppb (34) N/A 0.0 ppb (0) -1.0 ppb (0) 0.4 ppb (4) N/A 13.4 μg/m3 (53) 53.0
 
Jan. 20, 2020, 3 a.m. 42.8 ppb (40) 5.5 ppb (5) N/A 37.0 ppb (34) N/A 0.0 ppb (0) 0.0 ppb (0) 0.4 ppb (4) N/A 11.7 μg/m3 (49) 49.0
 
Jan. 20, 2020, 2 a.m. 22.1 ppb (20) 1.0 ppb (1) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 13.0 ppb (10) 0.1 ppb (1) N/A 9.9 μg/m3 (41) 41.0
 
Jan. 20, 2020, 1 a.m. 15.6 ppb (14) 0.7 ppb (1) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 20.0 ppb (15) 0.1 ppb (1) N/A 10.2 μg/m3 (42) 42.0
 
Jan. 20, 2020, midnight 10.6 ppb (10) 0.6 ppb (1) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 25.0 ppb (19) 0.0 ppb (0) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 19, 2020, 11 p.m. 12.6 ppb (12) 1.9 ppb (2) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 28.0 ppb (22) 0.0 ppb (0) N/A 10.2 μg/m3 (42) 42.0
 
Jan. 19, 2020, 10 p.m. 15.0 ppb (14) 4.0 ppb (4) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 29.0 ppb (22) 0.0 ppb (0) N/A 10.5 μg/m3 (44) 44.0
 
Jan. 19, 2020, 9 p.m. 21.4 ppb (20) 7.5 ppb (7) N/A 14.0 ppb (13) N/A 1.0 ppb (1) 26.0 ppb (20) 0.1 ppb (1) N/A 11.1 μg/m3 (46) 46.0
 
Jan. 19, 2020, 8 p.m. 29.2 ppb (27) 11.6 ppb (11) N/A 17.0 ppb (16) N/A 2.0 ppb (3) 26.0 ppb (20) 0.1 ppb (1) N/A 10.7 μg/m3 (45) 45.0
 
Jan. 19, 2020, 7 p.m. 44.7 ppb (41) 20.3 ppb (19) N/A 24.0 ppb (22) N/A 3.0 ppb (4) 21.0 ppb (16) 0.2 ppb (2) N/A 12.8 μg/m3 (52) 52.0
 
Jan. 19, 2020, 6 p.m. 41.7 ppb (39) 19.3 ppb (18) N/A 22.0 ppb (20) N/A 3.0 ppb (4) 20.0 ppb (15) 0.2 ppb (2) N/A 9.9 μg/m3 (41) 41.0
 
Jan. 19, 2020, 5 p.m. 39.9 ppb (37) 18.5 ppb (17) N/A 21.0 ppb (19) N/A 1.0 ppb (1) 18.0 ppb (14) 0.2 ppb (2) N/A 8.4 μg/m3 (35) 37.0
 
Jan. 19, 2020, 4 p.m. 41.3 ppb (38) 16.9 ppb (16) N/A 24.0 ppb (22) N/A 0.0 ppb (0) 12.0 ppb (9) 0.2 ppb (2) N/A 7.4 μg/m3 (31) 38.0
 
Jan. 19, 2020, 3 p.m. 38.3 ppb (35) 9.5 ppb (9) N/A 28.0 ppb (26) N/A 0.0 ppb (0) 8.0 ppb (6) 0.2 ppb (2) N/A 5.5 μg/m3 (23) 35.0
 
Jan. 19, 2020, 2 p.m. 77.3 ppb (75) 37.1 ppb (34) N/A 40.0 ppb (37) N/A 1.0 ppb (1) -1.0 ppb (0) 0.5 ppb (6) N/A 7.3 μg/m3 (30) 75.0
 
Jan. 19, 2020, 1 p.m. 74.1 ppb (71) 31.2 ppb (29) N/A 43.0 ppb (40) N/A 1.0 ppb (1) -2.0 ppb (0) 0.4 ppb (4) N/A 7.4 μg/m3 (31) 71.0
 
Jan. 19, 2020, noon 70.6 ppb (68) 26.5 ppb (25) N/A 44.0 ppb (41) N/A 1.0 ppb (1) -2.0 ppb (0) 0.4 ppb (4) N/A 7.7 μg/m3 (32) 68.0
 
Jan. 19, 2020, 11 a.m. 128.8 ppb (105) 84.2 ppb (82) N/A 45.0 ppb (42) N/A 2.0 ppb (3) N/A 0.8 ppb (9) N/A 13.8 μg/m3 (54) 105.0
 
Jan. 19, 2020, 10 a.m. 149.9 ppb (109) 103.2 ppb (100) N/A 47.0 ppb (44) N/A 2.0 ppb (3) -2.0 ppb (0) 0.8 ppb (9) N/A 18.1 μg/m3 (63) 109.0
 
Jan. 19, 2020, 9 a.m. 100.3 ppb (99) 63.1 ppb (60) N/A 37.0 ppb (34) N/A 1.0 ppb (1) -2.0 ppb (0) 0.6 ppb (7) N/A 19.2 μg/m3 (65) 99.0
 
Jan. 19, 2020, 8 a.m. 82.9 ppb (81) 46.7 ppb (43) N/A 36.0 ppb (33) N/A 1.0 ppb (1) -2.0 ppb (0) 0.5 ppb (6) N/A 16.5 μg/m3 (60) 81.0
 
Jan. 19, 2020, 7 a.m. 50.1 ppb (46) 17.8 ppb (16) N/A 32.0 ppb (30) N/A 0.0 ppb (0) -2.0 ppb (0) 0.4 ppb (4) N/A 14.0 μg/m3 (54) 54.0
 
Jan. 19, 2020, 6 a.m. 33.7 ppb (31) 5.9 ppb (5) N/A 27.0 ppb (25) N/A 0.0 ppb (0) 0.0 ppb (0) 0.2 ppb (2) N/A 14.9 μg/m3 (56) 56.0
 
Jan. 19, 2020, 5 a.m. 37.6 ppb (35) 7.3 ppb (7) N/A 30.0 ppb (28) N/A 0.0 ppb (0) 0.0 ppb (0) 0.2 ppb (2) N/A 16.8 μg/m3 (60) 60.0
 
Jan. 19, 2020, 4 a.m. 49.4 ppb (46) 14.0 ppb (13) N/A 35.0 ppb (32) N/A 0.0 ppb (0) -2.0 ppb (0) 0.3 ppb (3) N/A 14.3 μg/m3 (55) 55.0
 
Jan. 19, 2020, 3 a.m. 50.5 ppb (47) 14.9 ppb (14) N/A 35.0 ppb (32) N/A 0.0 ppb (0) -2.0 ppb (0) 0.5 ppb (6) N/A 13.3 μg/m3 (53) 53.0
 
Jan. 19, 2020, 2 a.m. 30.6 ppb (28) 3.1 ppb (3) N/A 27.0 ppb (25) N/A 0.0 ppb (0) 3.0 ppb (2) 0.3 ppb (3) N/A 9.8 μg/m3 (41) 41.0
 
Jan. 19, 2020, 1 a.m. 25.4 ppb (24) 2.5 ppb (2) N/A 23.0 ppb (21) N/A 0.0 ppb (0) 11.0 ppb (8) 0.1 ppb (1) N/A 9.3 μg/m3 (39) 39.0
 
Jan. 19, 2020, midnight 17.0 ppb (16) 0.8 ppb (1) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 19.0 ppb (15) 0.0 ppb (0) N/A 7.1 μg/m3 (30) 30.0
 
Jan. 18, 2020, 11 p.m. 14.6 ppb (14) 2.4 ppb (2) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 24.0 ppb (18) 0.0 ppb (0) N/A 5.7 μg/m3 (24) 24.0
 
Jan. 18, 2020, 10 p.m. 12.5 ppb (12) 3.5 ppb (3) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 29.0 ppb (22) 0.0 ppb (0) N/A 4.7 μg/m3 (20) 22.0
 
Jan. 18, 2020, 9 p.m. 9.8 ppb (9) 3.2 ppb (3) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 31.0 ppb (24) 0.0 ppb (0) N/A 4.0 μg/m3 (17) 24.0
 
Jan. 18, 2020, 8 p.m. 16.9 ppb (16) 7.0 ppb (6) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 29.0 ppb (22) 0.1 ppb (1) N/A 5.1 μg/m3 (21) 22.0
 
Jan. 18, 2020, 7 p.m. 22.7 ppb (21) 10.0 ppb (9) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 24.0 ppb (18) 0.1 ppb (1) N/A 6.7 μg/m3 (28) 28.0
 
Jan. 18, 2020, 6 p.m. 16.4 ppb (15) 7.0 ppb (6) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 25.0 ppb (19) 0.1 ppb (1) N/A 4.5 μg/m3 (19) 19.0
 
Jan. 18, 2020, 5 p.m. 39.0 ppb (36) 17.3 ppb (16) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 16.0 ppb (12) 0.2 ppb (2) N/A 7.6 μg/m3 (32) 36.0
 
Jan. 18, 2020, 4 p.m. 63.0 ppb (60) 29.8 ppb (28) N/A 33.0 ppb (31) N/A 1.0 ppb (1) 6.0 ppb (5) 0.3 ppb (3) N/A 8.5 μg/m3 (35) 60.0
 
Jan. 18, 2020, 3 p.m. 34.2 ppb (32) 6.6 ppb (6) N/A 27.0 ppb (25) N/A 0.0 ppb (0) 8.0 ppb (6) 0.2 ppb (2) N/A 4.7 μg/m3 (20) 32.0
 
Jan. 18, 2020, 2 p.m. 33.8 ppb (31) 3.2 ppb (3) N/A 30.0 ppb (28) N/A 0.0 ppb (0) 7.0 ppb (5) 0.1 ppb (1) N/A 3.8 μg/m3 (16) 31.0
 
Jan. 18, 2020, 1 p.m. 45.3 ppb (42) 6.6 ppb (6) N/A 38.0 ppb (35) N/A 0.0 ppb (0) 0.0 ppb (0) 0.2 ppb (2) N/A 5.2 μg/m3 (22) 42.0
 
Jan. 18, 2020, noon 33.8 ppb (31) 2.8 ppb (3) N/A 31.0 ppb (29) N/A 0.0 ppb (0) 5.0 ppb (4) 0.1 ppb (1) N/A 4.1 μg/m3 (17) 31.0
 
Jan. 18, 2020, 11 a.m. 37.9 ppb (35) 4.4 ppb (4) N/A 33.0 ppb (31) N/A N/A 4.0 ppb (3) 0.1 ppb (1) N/A 4.8 μg/m3 (20) 35.0
 
Jan. 18, 2020, 10 a.m. 22.0 ppb (20) 1.1 ppb (1) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 14.0 ppb (11) 0.1 ppb (1) N/A 2.1 μg/m3 (9) 20.0
 
Jan. 18, 2020, 9 a.m. 26.9 ppb (25) 1.3 ppb (1) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 10.0 ppb (8) 0.2 ppb (2) N/A 2.8 μg/m3 (12) 25.0
 
Jan. 18, 2020, 8 a.m. 18.3 ppb (17) 0.9 ppb (1) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 16.0 ppb (12) 0.1 ppb (1) N/A 2.2 μg/m3 (9) 17.0
 
Jan. 18, 2020, 7 a.m. 39.0 ppb (36) 4.5 ppb (4) N/A 34.0 ppb (31) N/A 0.0 ppb (0) 4.0 ppb (3) 0.2 ppb (2) N/A 3.3 μg/m3 (14) 36.0
 
Jan. 18, 2020, 6 a.m. 65.3 ppb (62) 22.3 ppb (21) N/A 43.0 ppb (40) N/A 0.0 ppb (0) -1.0 ppb (0) 0.5 ppb (6) N/A 5.9 μg/m3 (25) 62.0
 
Jan. 18, 2020, 5 a.m. 58.1 ppb (54) 18.6 ppb (17) N/A 39.0 ppb (36) N/A 0.0 ppb (0) -1.0 ppb (0) 0.4 ppb (4) N/A 6.3 μg/m3 (26) 54.0
 
Jan. 18, 2020, 4 a.m. 67.8 ppb (65) 26.3 ppb (24) N/A 41.0 ppb (38) N/A 1.0 ppb (1) -2.0 ppb (0) 0.6 ppb (7) N/A 9.5 μg/m3 (40) 65.0
 
Jan. 18, 2020, 3 a.m. 58.6 ppb (55) 17.4 ppb (16) N/A 41.0 ppb (38) N/A 0.0 ppb (0) -2.0 ppb (0) 0.4 ppb (4) N/A 8.2 μg/m3 (34) 55.0
 
Jan. 18, 2020, 2 a.m. 32.1 ppb (30) 4.1 ppb (4) N/A 28.0 ppb (26) N/A 0.0 ppb (0) 7.0 ppb (5) 0.2 ppb (2) N/A 4.1 μg/m3 (17) 30.0
 
Jan. 18, 2020, 1 a.m. 11.5 ppb (11) 0.4 ppb (0) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 22.0 ppb (17) 0.0 ppb (0) N/A 1.6 μg/m3 (7) 17.0
 
Jan. 18, 2020, midnight 6.6 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 25.0 ppb (19) 0.0 ppb (0) N/A 0.8 μg/m3 (3) 19.0
 
Jan. 17, 2020, 11 p.m. 4.0 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (24) 0.0 ppb (0) N/A 0.5 μg/m3 (2) 24.0
 
Jan. 17, 2020, 10 p.m. 4.1 ppb (4) 1.3 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (24) 0.0 ppb (0) N/A 0.5 μg/m3 (2) 24.0
 
Jan. 17, 2020, 9 p.m. 2.7 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (25) 0.0 ppb (0) N/A 0.4 μg/m3 (2) 25.0
 
Jan. 17, 2020, 8 p.m. 3.6 ppb (3) 1.5 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (24) 0.0 ppb (0) N/A 0.6 μg/m3 (2) 24.0
 
Jan. 17, 2020, 7 p.m. 3.3 ppb (3) 1.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (24) 0.0 ppb (0) N/A 0.6 μg/m3 (2) 24.0
 
Jan. 17, 2020, 6 p.m. 5.6 ppb (5) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (22) 0.0 ppb (0) N/A 0.9 μg/m3 (4) 22.0
 
Jan. 17, 2020, 5 p.m. 6.6 ppb (6) 1.8 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 29.0 ppb (22) 0.0 ppb (0) N/A 1.0 μg/m3 (4) 22.0
 
Jan. 17, 2020, 4 p.m. 4.9 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 30.0 ppb (23) 0.0 ppb (0) N/A 1.0 μg/m3 (4) 23.0
 
Jan. 17, 2020, 3 p.m. 4.6 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 30.0 ppb (23) 0.0 ppb (0) N/A 1.2 μg/m3 (5) 23.0
 
Jan. 17, 2020, 2 p.m. 4.2 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 32.0 ppb (25) 0.0 ppb (0) N/A 0.6 μg/m3 (2) 25.0
 
Jan. 17, 2020, 1 p.m. 3.0 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (26) 0.0 ppb (0) N/A 0.6 μg/m3 (2) 26.0
 
Jan. 17, 2020, noon 2.7 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (25) 0.0 ppb (0) N/A 1.8 μg/m3 (8) 25.0
 
Jan. 17, 2020, 11 a.m. 3.3 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 35.0 ppb (27) 0.0 ppb (0) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 17, 2020, 10 a.m. 4.7 ppb (4) 0.4 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (24) 0.0 ppb (0) N/A 2.4 μg/m3 (10) 24.0
 
Jan. 17, 2020, 9 a.m. 6.2 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 31.0 ppb (24) 0.0 ppb (0) N/A 2.0 μg/m3 (8) 24.0
 
Jan. 17, 2020, 8 a.m. 4.0 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 33.0 ppb (25) 0.0 ppb (0) N/A 2.1 μg/m3 (9) 25.0
 
Jan. 17, 2020, 7 a.m. 6.7 ppb (6) 1.1 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (25) 0.0 ppb (0) N/A 1.9 μg/m3 (8) 25.0
 
Jan. 17, 2020, 6 a.m. 6.5 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (25) 0.0 ppb (0) N/A 2.0 μg/m3 (8) 25.0
 
Jan. 17, 2020, 5 a.m. 9.9 ppb (9) 0.4 ppb (0) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 30.0 ppb (23) 0.0 ppb (0) N/A 2.9 μg/m3 (12) 23.0
 
Jan. 17, 2020, 4 a.m. 14.9 ppb (14) 0.7 ppb (1) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 27.0 ppb (21) 0.0 ppb (0) N/A 3.4 μg/m3 (14) 21.0
 
Jan. 17, 2020, 3 a.m. 14.7 ppb (14) 0.6 ppb (1) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 27.0 ppb (21) 0.0 ppb (0) N/A 5.3 μg/m3 (22) 22.0
 
Jan. 17, 2020, 2 a.m. 12.5 ppb (12) 0.4 ppb (0) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 29.0 ppb (22) 0.0 ppb (0) N/A 3.7 μg/m3 (15) 22.0
 
Jan. 17, 2020, 1 a.m. 14.5 ppb (13) 0.6 ppb (1) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 28.0 ppb (22) 0.0 ppb (0) N/A 4.0 μg/m3 (17) 22.0
 
Jan. 17, 2020, midnight 20.1 ppb (19) 1.1 ppb (1) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 24.0 ppb (18) 0.1 ppb (1) N/A 5.6 μg/m3 (23) 23.0
 
Jan. 16, 2020, 11 p.m. 20.1 ppb (19) 2.0 ppb (2) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 25.0 ppb (19) 0.1 ppb (1) N/A 5.4 μg/m3 (23) 23.0
 
Jan. 16, 2020, 10 p.m. 13.3 ppb (12) 2.4 ppb (2) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 30.0 ppb (23) 0.0 ppb (0) N/A 4.4 μg/m3 (18) 23.0
 
Jan. 16, 2020, 9 p.m. 11.5 ppb (11) 2.5 ppb (2) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 32.0 ppb (25) 0.0 ppb (0) N/A 4.0 μg/m3 (17) 25.0
 
Jan. 16, 2020, 8 p.m. 15.1 ppb (14) 3.7 ppb (3) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 29.0 ppb (22) 0.0 ppb (0) N/A 4.6 μg/m3 (19) 22.0
 
Jan. 16, 2020, 7 p.m. 13.1 ppb (12) 3.6 ppb (3) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 30.0 ppb (23) 0.0 ppb (0) N/A 4.3 μg/m3 (18) 23.0
 
Jan. 16, 2020, 6 p.m. 19.5 ppb (18) 6.1 ppb (6) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 27.0 ppb (21) 0.1 ppb (1) N/A 5.2 μg/m3 (22) 22.0
 
Jan. 16, 2020, 5 p.m. 35.6 ppb (33) 12.5 ppb (12) N/A 23.0 ppb (21) N/A 0.0 ppb (0) 19.0 ppb (15) 0.2 ppb (2) N/A 8.4 μg/m3 (35) 35.0
 
Jan. 16, 2020, 4 p.m. 29.5 ppb (27) 7.6 ppb (7) N/A 22.0 ppb (20) N/A 0.0 ppb (0) 19.0 ppb (15) 0.1 ppb (1) N/A 6.2 μg/m3 (26) 27.0
 
Jan. 16, 2020, 3 p.m. 24.9 ppb (23) 3.8 ppb (4) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 20.0 ppb (15) 0.1 ppb (1) N/A 4.6 μg/m3 (19) 23.0
 
Jan. 16, 2020, 2 p.m. 15.3 ppb (14) 1.2 ppb (1) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 25.0 ppb (19) 0.1 ppb (1) N/A 3.6 μg/m3 (15) 19.0
 
Jan. 16, 2020, 1 p.m. 12.0 ppb (11) 0.7 ppb (1) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 28.0 ppb (22) 0.0 ppb (0) N/A 3.1 μg/m3 (13) 22.0
 
Jan. 16, 2020, noon 20.0 ppb (19) 1.4 ppb (1) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 21.0 ppb (16) 0.0 ppb (0) N/A 3.6 μg/m3 (15) 19.0
 
Jan. 16, 2020, 11 a.m. 15.5 ppb (14) 1.0 ppb (1) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 24.0 ppb (18) 0.0 ppb (0) N/A 3.7 μg/m3 (15) 18.0
 
Jan. 16, 2020, 10 a.m. 26.5 ppb (25) 3.3 ppb (3) N/A 23.0 ppb (21) N/A 0.0 ppb (0) 18.0 ppb (14) 0.1 ppb (1) N/A 3.7 μg/m3 (15) 25.0
 
Jan. 16, 2020, 9 a.m. 64.7 ppb (61) 19.6 ppb (18) N/A 45.0 ppb (42) N/A 1.0 ppb (1) 0.0 ppb (0) 0.3 ppb (3) N/A 7.6 μg/m3 (32) 61.0
 
Jan. 16, 2020, 8 a.m. 73.3 ppb (71) 32.0 ppb (30) N/A 41.0 ppb (38) N/A 1.0 ppb (1) -1.0 ppb (0) 0.4 ppb (4) N/A 8.4 μg/m3 (35) 71.0
 
Jan. 16, 2020, 7 a.m. 68.8 ppb (66) 31.4 ppb (29) N/A 37.0 ppb (34) N/A 1.0 ppb (1) -2.0 ppb (0) 0.4 ppb (4) N/A 13.3 μg/m3 (53) 66.0
 
Jan. 16, 2020, 6 a.m. 50.8 ppb (47) 16.6 ppb (15) N/A 34.0 ppb (31) N/A 0.0 ppb (0) -2.0 ppb (0) 0.2 ppb (2) N/A 16.3 μg/m3 (59) 59.0
 
Jan. 16, 2020, 5 a.m. 43.3 ppb (40) 7.9 ppb (7) N/A 35.0 ppb (32) N/A 0.0 ppb (0) -1.0 ppb (0) 0.2 ppb (2) N/A 10.2 μg/m3 (42) 42.0
 
Jan. 16, 2020, 4 a.m. 41.4 ppb (38) 7.0 ppb (6) N/A 34.0 ppb (31) N/A 0.0 ppb (0) 0.0 ppb (0) 0.2 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 16, 2020, 3 a.m. 26.8 ppb (25) 2.2 ppb (2) N/A 24.0 ppb (22) N/A 0.0 ppb (0) 7.0 ppb (5) 0.1 ppb (1) N/A 9.5 μg/m3 (40) 40.0
 
Jan. 16, 2020, 2 a.m. 24.0 ppb (22) 1.2 ppb (1) N/A 23.0 ppb (21) N/A 0.0 ppb (0) 11.0 ppb (8) 0.1 ppb (1) N/A 6.8 μg/m3 (28) 28.0
 
Jan. 16, 2020, 1 a.m. 24.7 ppb (23) 1.1 ppb (1) N/A 23.0 ppb (21) N/A 0.0 ppb (0) 10.0 ppb (8) 0.1 ppb (1) N/A 7.1 μg/m3 (30) 30.0
 
Jan. 16, 2020, midnight 21.9 ppb (20) 1.6 ppb (1) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 15.0 ppb (12) 0.0 ppb (0) N/A 8.2 μg/m3 (34) 34.0
 
Jan. 15, 2020, 11 p.m. 22.7 ppb (21) 4.0 ppb (4) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 19.0 ppb (15) 0.1 ppb (1) N/A 7.5 μg/m3 (31) 31.0
 
Jan. 15, 2020, 10 p.m. 20.3 ppb (19) 5.9 ppb (5) N/A 14.0 ppb (13) N/A 1.0 ppb (1) 24.0 ppb (18) 0.0 ppb (0) N/A 7.2 μg/m3 (30) 30.0
 
Jan. 15, 2020, 9 p.m. 24.4 ppb (23) 9.2 ppb (9) N/A 15.0 ppb (14) N/A 1.0 ppb (1) 25.0 ppb (19) 0.1 ppb (1) N/A 7.4 μg/m3 (31) 31.0
 
Jan. 15, 2020, 8 p.m. 54.8 ppb (51) 25.1 ppb (23) N/A 29.0 ppb (27) N/A 2.0 ppb (3) 20.0 ppb (15) 0.2 ppb (2) N/A 12.6 μg/m3 (51) 51.0
 
Jan. 15, 2020, 7 p.m. 55.9 ppb (52) 28.0 ppb (26) N/A 28.0 ppb (26) N/A 2.0 ppb (3) 21.0 ppb (16) 0.2 ppb (2) N/A 11.3 μg/m3 (47) 52.0
 
Jan. 15, 2020, 6 p.m. 81.3 ppb (79) 45.5 ppb (42) N/A 35.0 ppb (32) N/A 2.0 ppb (3) 15.0 ppb (12) 0.4 ppb (4) N/A 12.3 μg/m3 (51) 79.0
 
Jan. 15, 2020, 5 p.m. 67.6 ppb (64) 36.4 ppb (34) N/A 31.0 ppb (29) N/A 1.0 ppb (1) 14.0 ppb (11) 0.4 ppb (4) N/A 9.3 μg/m3 (39) 64.0
 
Jan. 15, 2020, 4 p.m. 111.4 ppb (102) 68.5 ppb (65) N/A 43.0 ppb (40) N/A 2.0 ppb (3) 5.0 ppb (4) 0.7 ppb (8) N/A 10.7 μg/m3 (45) 102.0
 
Jan. 15, 2020, 3 p.m. 154.7 ppb (110) 103.0 ppb (100) N/A 52.0 ppb (48) N/A 2.0 ppb (3) 0.0 ppb (0) 1.3 ppb (14) N/A 7.8 μg/m3 (32) 110.0
 
Jan. 15, 2020, 2 p.m. 138.6 ppb (107) 87.7 ppb (86) N/A 51.0 ppb (47) N/A 2.0 ppb (3) -1.0 ppb (0) 1.1 ppb (12) N/A 6.7 μg/m3 (28) 107.0
 
Jan. 15, 2020, 1 p.m. 111.3 ppb (102) 64.2 ppb (61) N/A 47.0 ppb (44) N/A 1.0 ppb (1) -1.0 ppb (0) 0.8 ppb (9) N/A 5.6 μg/m3 (23) 102.0
 
Jan. 15, 2020, noon 48.8 ppb (45) 8.6 ppb (8) N/A 40.0 ppb (37) N/A 1.0 ppb (1) 0.0 ppb (0) 0.2 ppb (2) N/A 3.7 μg/m3 (15) 45.0
 
Jan. 15, 2020, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 5.0 ppb (4) 0.3 ppb (3) N/A 2.4 μg/m3 (10) 10.0
 
Jan. 15, 2020, 10 a.m. 39.9 ppb (37) 4.2 ppb (4) N/A 35.0 ppb (32) N/A 0.0 ppb (0) 5.0 ppb (4) 0.3 ppb (3) N/A 2.4 μg/m3 (10) 37.0
 
Jan. 15, 2020, 9 a.m. 34.6 ppb (32) 3.7 ppb (3) N/A 31.0 ppb (29) N/A 0.0 ppb (0) 7.0 ppb (5) 0.2 ppb (2) N/A 3.0 μg/m3 (12) 32.0
 
Jan. 15, 2020, 8 a.m. 19.6 ppb (18) 1.2 ppb (1) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 18.0 ppb (14) 0.1 ppb (1) N/A 2.4 μg/m3 (10) 18.0
 
Jan. 15, 2020, 7 a.m. 11.1 ppb (10) 0.8 ppb (1) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 26.0 ppb (20) 0.0 ppb (0) N/A 1.7 μg/m3 (7) 20.0
 
Jan. 15, 2020, 6 a.m. 13.5 ppb (12) 0.9 ppb (1) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 23.0 ppb (18) 0.1 ppb (1) N/A 1.5 μg/m3 (6) 18.0
 
Jan. 15, 2020, 5 a.m. 39.7 ppb (37) 5.6 ppb (5) N/A 34.0 ppb (31) N/A 0.0 ppb (0) 8.0 ppb (6) 0.2 ppb (2) N/A 2.8 μg/m3 (12) 37.0
 
Jan. 15, 2020, 4 a.m. 52.9 ppb (49) 15.2 ppb (14) N/A 37.0 ppb (34) N/A 0.0 ppb (0) 2.0 ppb (2) 0.3 ppb (3) N/A 4.0 μg/m3 (17) 49.0
 
Jan. 15, 2020, 3 a.m. 70.3 ppb (67) 27.1 ppb (25) N/A 43.0 ppb (40) N/A 1.0 ppb (1) -1.0 ppb (0) 0.5 ppb (6) N/A 6.6 μg/m3 (28) 67.0
 
Jan. 15, 2020, 2 a.m. 78.3 ppb (76) 32.7 ppb (30) N/A 45.0 ppb (42) N/A 1.0 ppb (1) -2.0 ppb (0) 0.5 ppb (6) N/A 8.4 μg/m3 (35) 76.0
 
Jan. 15, 2020, 1 a.m. 38.9 ppb (36) 4.9 ppb (5) N/A 34.0 ppb (31) N/A 0.0 ppb (0) 6.0 ppb (5) 0.4 ppb (4) N/A 4.6 μg/m3 (19) 36.0
 
Jan. 15, 2020, midnight 14.5 ppb (13) 1.1 ppb (1) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 24.0 ppb (18) 0.1 ppb (1) N/A 1.9 μg/m3 (8) 18.0
 
Jan. 14, 2020, 11 p.m. 16.3 ppb (15) 2.3 ppb (2) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 25.0 ppb (19) 0.1 ppb (1) N/A 3.4 μg/m3 (14) 19.0
 
Jan. 14, 2020, 10 p.m. 11.6 ppb (11) 2.7 ppb (3) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 28.0 ppb (22) 0.1 ppb (1) N/A 1.7 μg/m3 (7) 22.0
 
Jan. 14, 2020, 9 p.m. 3.9 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (25) 0.0 ppb (0) N/A 0.6 μg/m3 (2) 25.0
 
Jan. 14, 2020, 8 p.m. 2.2 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (26) 0.0 ppb (0) N/A 0.5 μg/m3 (2) 26.0
 
Jan. 14, 2020, 7 p.m. 4.5 ppb (4) 1.1 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (24) 0.0 ppb (0) N/A 1.9 μg/m3 (8) 24.0
 
Jan. 14, 2020, 6 p.m. 10.1 ppb (9) 1.7 ppb (2) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 29.0 ppb (22) 0.0 ppb (0) N/A 5.1 μg/m3 (21) 22.0
 
Jan. 14, 2020, 5 p.m. 9.3 ppb (9) 2.2 ppb (2) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 31.0 ppb (24) 0.0 ppb (0) N/A 5.2 μg/m3 (22) 24.0
 
Jan. 14, 2020, 4 p.m. 10.2 ppb (9) 2.2 ppb (2) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 30.0 ppb (23) 0.0 ppb (0) N/A N/A 23.0
 
Jan. 14, 2020, 3 p.m. 8.3 ppb (8) 1.3 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 30.0 ppb (23) 0.0 ppb (0) N/A 3.7 μg/m3 (15) 23.0
 
Jan. 14, 2020, 2 p.m. 7.5 ppb (7) 1.1 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 31.0 ppb (24) 0.0 ppb (0) N/A 3.5 μg/m3 (15) 24.0
 
Jan. 14, 2020, 1 p.m. 6.6 ppb (6) 1.1 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 32.0 ppb (25) 0.0 ppb (0) N/A 3.4 μg/m3 (14) 25.0
 
Jan. 14, 2020, noon 4.9 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 33.0 ppb (25) 0.0 ppb (0) N/A 3.1 μg/m3 (13) 25.0
 
Jan. 14, 2020, 11 a.m. 5.5 ppb (5) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 2.4 μg/m3 (10) 25.0
 
Jan. 14, 2020, 10 a.m. 6.7 ppb (6) 1.3 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 31.0 ppb (24) 0.0 ppb (0) N/A 1.9 μg/m3 (8) 24.0
 
Jan. 14, 2020, 9 a.m. 28.9 ppb (27) 3.2 ppb (3) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 7.0 ppb (5) 0.1 ppb (1) N/A 4.6 μg/m3 (19) 27.0
 
Jan. 14, 2020, 8 a.m. 28.8 ppb (27) 2.8 ppb (3) N/A 26.0 ppb (24) N/A 0.0 ppb (0) 3.0 ppb (2) 0.1 ppb (1) N/A 3.9 μg/m3 (16) 27.0
 
Jan. 14, 2020, 7 a.m. 15.7 ppb (15) 0.6 ppb (1) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 12.0 ppb (9) 0.0 ppb (0) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 14, 2020, 6 a.m. 13.3 ppb (12) 0.5 ppb (0) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 17.0 ppb (13) 0.0 ppb (0) N/A 2.8 μg/m3 (12) 13.0
 
Jan. 14, 2020, 5 a.m. 10.3 ppb (10) 0.4 ppb (0) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 26.0 ppb (20) 0.0 ppb (0) N/A 2.0 μg/m3 (8) 20.0
 
Jan. 14, 2020, 4 a.m. 10.0 ppb (9) 0.7 ppb (1) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 28.0 ppb (22) 0.0 ppb (0) N/A 2.7 μg/m3 (11) 22.0
 
Jan. 14, 2020, 3 a.m. 23.3 ppb (22) 1.3 ppb (1) N/A 22.0 ppb (20) N/A 0.0 ppb (0) 17.0 ppb (13) 0.1 ppb (1) N/A 8.1 μg/m3 (34) 34.0
 
Jan. 14, 2020, 2 a.m. 28.9 ppb (27) 1.4 ppb (1) N/A 27.0 ppb (25) N/A 0.0 ppb (0) 13.0 ppb (10) 0.2 ppb (2) N/A 5.3 μg/m3 (22) 27.0
 
Jan. 14, 2020, 1 a.m. 32.5 ppb (30) 1.9 ppb (2) N/A 30.0 ppb (28) N/A 0.0 ppb (0) 10.0 ppb (8) 0.2 ppb (2) N/A 7.7 μg/m3 (32) 32.0
 
Jan. 14, 2020, midnight 40.1 ppb (37) 4.0 ppb (4) N/A 36.0 ppb (33) N/A 0.0 ppb (0) 6.0 ppb (5) 0.2 ppb (2) N/A 7.3 μg/m3 (30) 37.0
 
Jan. 13, 2020, 11 p.m. 32.2 ppb (30) 8.1 ppb (8) N/A 24.0 ppb (22) N/A 0.0 ppb (0) 17.0 ppb (13) 0.1 ppb (1) N/A 4.5 μg/m3 (19) 30.0
 
Jan. 13, 2020, 10 p.m. 24.6 ppb (23) 8.8 ppb (8) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 24.0 ppb (18) 0.1 ppb (1) N/A 3.2 μg/m3 (13) 23.0