AQSQID: 113490351002

Site Name: Ma

Location: Salt Lake Co, UT

Reporting: True, Located: True

Current AQI: 80.0

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
Jan. 16, 2019, 9 a.m. 14.0 ppb (13) 0.0 ppb (0) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 26.1 μg/m3 (80) 80.0
 
Jan. 16, 2019, 8 a.m. 13.0 ppb (12) 0.0 ppb (0) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 22.1 μg/m3 (71) 71.0
 
Jan. 16, 2019, 7 a.m. 13.0 ppb (12) 0.0 ppb (0) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 19.9 μg/m3 (67) 67.0
 
Jan. 16, 2019, 6 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 19.9 μg/m3 (67) 67.0
 
Jan. 16, 2019, 5 a.m. 14.0 ppb (13) 0.0 ppb (0) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 21.1 μg/m3 (69) 69.0
 
Jan. 16, 2019, 4 a.m. 16.0 ppb (15) 0.0 ppb (0) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 20.5 μg/m3 (68) 68.0
 
Jan. 16, 2019, 3 a.m. 15.0 ppb (14) 0.0 ppb (0) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 19.6 μg/m3 (66) 66.0
 
Jan. 16, 2019, 2 a.m. 16.0 ppb (15) 0.0 ppb (0) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 19.0 μg/m3 (65) 65.0
 
Jan. 16, 2019, 1 a.m. 17.0 ppb (16) 0.0 ppb (0) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 18.9 μg/m3 (65) 65.0
 
Jan. 16, 2019, midnight 16.0 ppb (15) 1.0 ppb (1) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 18.0 μg/m3 (63) 63.0
 
Jan. 15, 2019, 11 p.m. 15.0 ppb (14) 2.0 ppb (2) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 19.0 μg/m3 (65) 65.0
 
Jan. 15, 2019, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 18.6 μg/m3 (64) 64.0
 
Jan. 15, 2019, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A N/A 21.0
 
Jan. 15, 2019, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A N/A 22.0
 
Jan. 15, 2019, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A N/A 22.0
 
Jan. 15, 2019, 6 p.m. 32.0 ppb (30) 13.0 ppb (12) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 21.0 ppb (16) N/A N/A 21.2 μg/m3 (70) 70.0
 
Jan. 15, 2019, 5 p.m. 36.0 ppb (33) 13.0 ppb (12) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 17.0 ppb (13) N/A N/A 25.2 μg/m3 (78) 78.0
 
Jan. 15, 2019, 4 p.m. 33.0 ppb (31) 9.0 ppb (8) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 15.0 ppb (12) N/A N/A 22.8 μg/m3 (73) 73.0
 
Jan. 15, 2019, 3 p.m. 27.0 ppb (25) 4.0 ppb (4) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 14.0 ppb (11) N/A N/A 20.7 μg/m3 (69) 69.0
 
Jan. 15, 2019, 2 p.m. 20.0 ppb (19) 1.0 ppb (1) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 18.1 μg/m3 (63) 63.0
 
Jan. 15, 2019, 1 p.m. 18.0 ppb (17) 0.0 ppb (0) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 16.9 μg/m3 (60) 60.0
 
Jan. 15, 2019, noon 16.0 ppb (15) 0.0 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 17.4 μg/m3 (61) 61.0
 
Jan. 15, 2019, 11 a.m. 12.0 ppb (11) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 13.8 μg/m3 (54) 54.0
 
Jan. 15, 2019, 10 a.m. 10.0 ppb (9) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 11.1 μg/m3 (46) 46.0
 
Jan. 15, 2019, 9 a.m. 12.0 ppb (11) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 11.2 μg/m3 (47) 47.0
 
Jan. 15, 2019, 8 a.m. 15.0 ppb (14) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 12.8 μg/m3 (52) 52.0
 
Jan. 15, 2019, 7 a.m. 13.0 ppb (12) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 11.7 μg/m3 (49) 49.0
 
Jan. 15, 2019, 6 a.m. 21.0 ppb (19) 1.0 ppb (1) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 12.0 ppb (9) N/A N/A 17.4 μg/m3 (61) 61.0
 
Jan. 15, 2019, 5 a.m. 15.0 ppb (14) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 15.4 μg/m3 (57) 57.0
 
Jan. 15, 2019, 4 a.m. 15.0 ppb (14) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 16.1 μg/m3 (59) 59.0
 
Jan. 15, 2019, 3 a.m. 10.0 ppb (9) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 9.6 μg/m3 (40) 40.0
 
Jan. 15, 2019, 2 a.m. 22.0 ppb (20) 1.0 ppb (1) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 14.0 ppb (11) N/A N/A 21.2 μg/m3 (70) 70.0
 
Jan. 15, 2019, 1 a.m. 23.0 ppb (21) 0.0 ppb (0) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 15.0 ppb (12) N/A N/A 20.8 μg/m3 (69) 69.0
 
Jan. 15, 2019, midnight 21.0 ppb (19) 1.0 ppb (1) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 20.1 μg/m3 (67) 67.0
 
Jan. 14, 2019, 11 p.m. 19.0 ppb (18) 3.0 ppb (3) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 20.1 μg/m3 (67) 67.0
 
Jan. 14, 2019, 10 p.m. 17.0 ppb (16) 4.0 ppb (4) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 18.7 μg/m3 (64) 64.0
 
Jan. 14, 2019, 9 p.m. 17.0 ppb (16) 4.0 ppb (4) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 17.5 μg/m3 (62) 62.0
 
Jan. 14, 2019, 8 p.m. 17.0 ppb (16) 6.0 ppb (6) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 17.9 μg/m3 (63) 63.0
 
Jan. 14, 2019, 7 p.m. 16.0 ppb (15) 5.0 ppb (5) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 16.8 μg/m3 (60) 60.0
 
Jan. 14, 2019, 6 p.m. 22.0 ppb (20) 7.0 ppb (6) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 22.4 μg/m3 (72) 72.0
 
Jan. 14, 2019, 5 p.m. 24.0 ppb (22) 7.0 ppb (6) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 26.9 μg/m3 (82) 82.0
 
Jan. 14, 2019, 4 p.m. 22.0 ppb (20) 4.0 ppb (4) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 26.8 μg/m3 (81) 81.0
 
Jan. 14, 2019, 3 p.m. 18.0 ppb (17) 1.0 ppb (1) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A 26.9 μg/m3 (82) 82.0
 
Jan. 14, 2019, 2 p.m. 18.0 ppb (17) 0.0 ppb (0) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 24.6 μg/m3 (77) 77.0
 
Jan. 14, 2019, 1 p.m. 17.0 ppb (16) 0.0 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 23.1 μg/m3 (74) 74.0
 
Jan. 14, 2019, noon 14.0 ppb (13) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 22.9 μg/m3 (73) 73.0
 
Jan. 14, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 22.1 μg/m3 (71) 71.0
 
Jan. 14, 2019, 10 a.m. 10.0 ppb (9) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 17.1 μg/m3 (61) 61.0
 
Jan. 14, 2019, 9 a.m. 8.0 ppb (7) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 13.7 μg/m3 (54) 54.0
 
Jan. 14, 2019, 8 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 12.1 μg/m3 (50) 50.0
 
Jan. 14, 2019, 7 a.m. 10.0 ppb (9) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 13.0 μg/m3 (52) 52.0
 
Jan. 14, 2019, 6 a.m. 8.0 ppb (7) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 11.2 μg/m3 (47) 47.0
 
Jan. 14, 2019, 5 a.m. 9.0 ppb (8) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 11.5 μg/m3 (48) 48.0
 
Jan. 14, 2019, 4 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 8.4 μg/m3 (35) 35.0
 
Jan. 14, 2019, 3 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 6.3 μg/m3 (26) 26.0
 
Jan. 14, 2019, 2 a.m. 8.0 ppb (7) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 8.8 μg/m3 (37) 37.0
 
Jan. 14, 2019, 1 a.m. 9.0 ppb (8) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 14, 2019, midnight 8.0 ppb (7) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 9.1 μg/m3 (38) 38.0
 
Jan. 13, 2019, 11 p.m. 8.0 ppb (7) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 8.9 μg/m3 (37) 37.0
 
Jan. 13, 2019, 10 p.m. 7.0 ppb (6) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 13, 2019, 9 p.m. 8.0 ppb (7) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 9.7 μg/m3 (40) 40.0
 
Jan. 13, 2019, 8 p.m. 8.0 ppb (7) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 10.7 μg/m3 (45) 45.0
 
Jan. 13, 2019, 7 p.m. 8.0 ppb (7) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 13, 2019, 6 p.m. 8.0 ppb (7) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 11.4 μg/m3 (48) 48.0
 
Jan. 13, 2019, 5 p.m. 8.0 ppb (7) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 12.3 μg/m3 (51) 51.0
 
Jan. 13, 2019, 4 p.m. 8.0 ppb (7) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 13.7 μg/m3 (54) 54.0
 
Jan. 13, 2019, 3 p.m. 8.0 ppb (7) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 13.9 μg/m3 (54) 54.0
 
Jan. 13, 2019, 2 p.m. 9.0 ppb (8) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 14.7 μg/m3 (56) 56.0
 
Jan. 13, 2019, 1 p.m. 12.0 ppb (11) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 14.1 μg/m3 (54) 54.0
 
Jan. 13, 2019, noon 15.0 ppb (14) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 16.6 μg/m3 (60) 60.0
 
Jan. 13, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 18.5 μg/m3 (64) 64.0
 
Jan. 13, 2019, 10 a.m. 13.0 ppb (12) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 19.1 μg/m3 (65) 65.0
 
Jan. 13, 2019, 9 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 12.9 μg/m3 (52) 52.0
 
Jan. 13, 2019, 8 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 11.3 μg/m3 (47) 47.0
 
Jan. 13, 2019, 7 a.m. 9.0 ppb (8) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 10.7 μg/m3 (45) 45.0
 
Jan. 13, 2019, 6 a.m. 11.0 ppb (10) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 11.2 μg/m3 (47) 47.0
 
Jan. 13, 2019, 5 a.m. 12.0 ppb (11) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 13.5 μg/m3 (53) 53.0
 
Jan. 13, 2019, 4 a.m. 11.0 ppb (10) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 14.4 μg/m3 (55) 55.0
 
Jan. 13, 2019, 3 a.m. 10.0 ppb (9) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 9.6 μg/m3 (40) 40.0
 
Jan. 13, 2019, 2 a.m. 8.0 ppb (7) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 8.3 μg/m3 (35) 35.0
 
Jan. 13, 2019, 1 a.m. 9.0 ppb (8) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 8.4 μg/m3 (35) 35.0
 
Jan. 13, 2019, midnight 9.0 ppb (8) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 8.9 μg/m3 (37) 37.0
 
Jan. 12, 2019, 11 p.m. 10.0 ppb (9) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 10.1 μg/m3 (42) 42.0
 
Jan. 12, 2019, 10 p.m. 12.0 ppb (11) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 12, 2019, 9 p.m. 13.0 ppb (12) 2.0 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 13.5 μg/m3 (53) 53.0
 
Jan. 12, 2019, 8 p.m. 12.0 ppb (11) 2.0 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 13.1 μg/m3 (52) 52.0
 
Jan. 12, 2019, 7 p.m. 11.0 ppb (10) 2.0 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 12, 2019, 6 p.m. 14.0 ppb (13) 3.0 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 15.3 μg/m3 (57) 57.0
 
Jan. 12, 2019, 5 p.m. 16.0 ppb (15) 3.0 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 17.3 μg/m3 (61) 61.0
 
Jan. 12, 2019, 4 p.m. 16.0 ppb (15) 2.0 ppb (2) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 18.2 μg/m3 (63) 63.0
 
Jan. 12, 2019, 3 p.m. 19.0 ppb (18) 2.0 ppb (2) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 21.4 μg/m3 (70) 70.0
 
Jan. 12, 2019, 2 p.m. 17.0 ppb (16) 1.0 ppb (1) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 20.5 μg/m3 (68) 68.0
 
Jan. 12, 2019, 1 p.m. 17.0 ppb (16) 1.0 ppb (1) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 17.9 μg/m3 (63) 63.0
 
Jan. 12, 2019, noon 17.0 ppb (16) 1.0 ppb (1) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 20.2 μg/m3 (67) 67.0
 
Jan. 12, 2019, 11 a.m. 18.0 ppb (17) 0.0 ppb (0) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A 21.1 μg/m3 (69) 69.0
 
Jan. 12, 2019, 10 a.m. 16.0 ppb (15) 0.0 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 17.9 μg/m3 (63) 63.0
 
Jan. 12, 2019, 9 a.m. 13.0 ppb (12) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 16.5 μg/m3 (60) 60.0
 
Jan. 12, 2019, 8 a.m. 11.0 ppb (10) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 14.2 μg/m3 (55) 55.0
 
Jan. 12, 2019, 7 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A 10.2 μg/m3 (42) 42.0
 
Jan. 12, 2019, 6 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 7.2 μg/m3 (30) 30.0
 
Jan. 12, 2019, 5 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 10.5 μg/m3 (44) 44.0
 
Jan. 12, 2019, 4 a.m. 9.0 ppb (8) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 9.7 μg/m3 (40) 40.0
 
Jan. 12, 2019, 3 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 12, 2019, 2 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 7.3 μg/m3 (30) 30.0
 
Jan. 12, 2019, 1 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 8.2 μg/m3 (34) 34.0
 
Jan. 12, 2019, midnight 6.0 ppb (6) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 8.1 μg/m3 (34) 34.0
 
Jan. 11, 2019, 11 p.m. 6.0 ppb (6) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 6.6 μg/m3 (28) 28.0
 
Jan. 11, 2019, 10 p.m. 7.0 ppb (6) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 10.4 μg/m3 (43) 43.0
 
Jan. 11, 2019, 9 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 11.8 μg/m3 (49) 49.0
 
Jan. 11, 2019, 8 p.m. 10.0 ppb (9) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 23.0 ppb (18) N/A N/A 17.9 μg/m3 (63) 63.0
 
Jan. 11, 2019, 7 p.m. 14.0 ppb (13) 4.0 ppb (4) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 22.0 ppb (17) N/A N/A 22.1 μg/m3 (71) 71.0
 
Jan. 11, 2019, 6 p.m. 9.0 ppb (8) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 26.5 μg/m3 (81) 81.0
 
Jan. 11, 2019, 5 p.m. 11.0 ppb (10) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A 29.2 μg/m3 (87) 87.0
 
Jan. 11, 2019, 4 p.m. 15.0 ppb (14) 3.0 ppb (3) N/A 6.0 ppb (6) N/A N/A 15.0 ppb (12) N/A N/A 23.6 μg/m3 (75) 75.0
 
Jan. 11, 2019, 3 p.m. 16.0 ppb (15) 2.0 ppb (2) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 20.6 μg/m3 (68) 68.0
 
Jan. 11, 2019, 2 p.m. 19.0 ppb (18) 1.0 ppb (1) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 11.0 ppb (8) N/A N/A 20.9 μg/m3 (69) 69.0
 
Jan. 11, 2019, 1 p.m. 17.0 ppb (16) 1.0 ppb (1) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 12.0 ppb (9) N/A N/A 22.0 μg/m3 (71) 71.0
 
Jan. 11, 2019, noon 18.0 ppb (17) 2.0 ppb (2) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 9.0 ppb (7) N/A N/A 20.1 μg/m3 (67) 67.0
 
Jan. 11, 2019, 11 a.m. 14.0 ppb (13) 1.0 ppb (1) N/A 7.0 ppb (6) N/A N/A 15.0 ppb (12) N/A N/A 14.3 μg/m3 (55) 55.0
 
Jan. 11, 2019, 10 a.m. 9.0 ppb (8) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 10.3 μg/m3 (43) 43.0
 
Jan. 11, 2019, 9 a.m. 11.0 ppb (10) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 11.2 μg/m3 (47) 47.0
 
Jan. 11, 2019, 8 a.m. 12.0 ppb (11) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 7.3 μg/m3 (30) 30.0
 
Jan. 11, 2019, 7 a.m. 36.0 ppb (33) 10.0 ppb (9) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 2.0 ppb (2) N/A N/A 21.0 μg/m3 (69) 69.0
 
Jan. 11, 2019, 6 a.m. 30.0 ppb (28) 7.0 ppb (6) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 4.0 ppb (3) N/A N/A 24.5 μg/m3 (77) 77.0
 
Jan. 11, 2019, 5 a.m. 28.0 ppb (26) 4.0 ppb (4) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 4.0 ppb (3) N/A N/A 20.0 μg/m3 (67) 67.0
 
Jan. 11, 2019, 4 a.m. 34.0 ppb (31) 9.0 ppb (8) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 2.0 ppb (2) N/A N/A 19.5 μg/m3 (66) 66.0
 
Jan. 11, 2019, 3 a.m. 39.0 ppb (36) 10.0 ppb (9) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 20.8 μg/m3 (69) 69.0
 
Jan. 11, 2019, 2 a.m. 26.0 ppb (24) 1.0 ppb (1) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 9.0 ppb (7) N/A N/A 19.3 μg/m3 (66) 66.0
 
Jan. 11, 2019, 1 a.m. 23.0 ppb (21) 1.0 ppb (1) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 19.6 μg/m3 (66) 66.0
 
Jan. 11, 2019, midnight 19.0 ppb (18) 0.0 ppb (0) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A 19.0 μg/m3 (65) 65.0
 
Jan. 10, 2019, 11 p.m. 15.0 ppb (14) 1.0 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 19.0 μg/m3 (65) 65.0
 
Jan. 10, 2019, 10 p.m. 13.0 ppb (12) 2.0 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 19.5 μg/m3 (66) 66.0
 
Jan. 10, 2019, 9 p.m. 14.0 ppb (13) 2.0 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 18.7 μg/m3 (64) 64.0
 
Jan. 10, 2019, 8 p.m. 20.0 ppb (19) 6.0 ppb (6) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 25.0 ppb (19) N/A N/A 27.9 μg/m3 (84) 84.0
 
Jan. 10, 2019, 7 p.m. 25.0 ppb (23) 10.0 ppb (9) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 29.3 μg/m3 (87) 87.0
 
Jan. 10, 2019, 6 p.m. 26.0 ppb (24) 9.0 ppb (8) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 21.0 ppb (16) N/A N/A 28.7 μg/m3 (86) 86.0
 
Jan. 10, 2019, 5 p.m. 36.0 ppb (33) 16.0 ppb (15) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 13.0 ppb (10) N/A N/A 30.6 μg/m3 (90) 90.0
 
Jan. 10, 2019, 4 p.m. 50.0 ppb (46) 24.0 ppb (22) N/A 13.0 ppb (12) N/A 2.0 ppb (3) 7.0 ppb (5) N/A N/A 29.7 μg/m3 (88) 88.0
 
Jan. 10, 2019, 3 p.m. 40.0 ppb (37) 15.0 ppb (14) N/A 13.0 ppb (12) N/A 1.0 ppb (1) 5.0 ppb (4) N/A N/A 26.1 μg/m3 (80) 80.0
 
Jan. 10, 2019, 2 p.m. 74.0 ppb (71) 43.0 ppb (40) N/A 16.0 ppb (15) N/A 2.0 ppb (3) 1.0 ppb (1) N/A N/A 27.3 μg/m3 (83) 83.0
 
Jan. 10, 2019, 1 p.m. 48.0 ppb (44) 19.0 ppb (18) N/A 15.0 ppb (14) N/A 2.0 ppb (3) 2.0 ppb (2) N/A N/A 25.9 μg/m3 (80) 80.0
 
Jan. 10, 2019, noon 45.0 ppb (42) 14.0 ppb (13) N/A 16.0 ppb (15) N/A 3.0 ppb (4) 1.0 ppb (1) N/A N/A 25.4 μg/m3 (79) 79.0
 
Jan. 10, 2019, 11 a.m. 28.0 ppb (26) 4.0 ppb (4) N/A 12.0 ppb (11) N/A 4.0 ppb (6) 6.0 ppb (5) N/A N/A 23.4 μg/m3 (74) 74.0
 
Jan. 10, 2019, 10 a.m. 22.0 ppb (20) 2.0 ppb (2) N/A 10.0 ppb (9) N/A 3.0 ppb (4) 9.0 ppb (7) N/A N/A 21.4 μg/m3 (70) 70.0
 
Jan. 10, 2019, 9 a.m. 23.0 ppb (21) 1.0 ppb (1) N/A 11.0 ppb (10) N/A 3.0 ppb (4) 11.0 ppb (8) N/A N/A 21.3 μg/m3 (70) 70.0
 
Jan. 10, 2019, 8 a.m. 22.0 ppb (20) 1.0 ppb (1) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 13.0 ppb (10) N/A N/A 21.5 μg/m3 (70) 70.0
 
Jan. 10, 2019, 7 a.m. 24.0 ppb (22) 1.0 ppb (1) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 7.0 ppb (5) N/A N/A 15.3 μg/m3 (57) 57.0
 
Jan. 10, 2019, 6 a.m. 31.0 ppb (29) 4.0 ppb (4) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 6.0 ppb (5) N/A N/A 15.0 μg/m3 (56) 56.0
 
Jan. 10, 2019, 5 a.m. 27.0 ppb (25) 3.0 ppb (3) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 6.0 ppb (5) N/A N/A 11.9 μg/m3 (50) 50.0
 
Jan. 10, 2019, 4 a.m. 36.0 ppb (33) 7.0 ppb (6) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 4.0 ppb (3) N/A N/A 12.3 μg/m3 (51) 51.0
 
Jan. 10, 2019, 3 a.m. 33.0 ppb (31) 5.0 ppb (5) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 7.0 ppb (5) N/A N/A 13.9 μg/m3 (54) 54.0
 
Jan. 10, 2019, 2 a.m. 38.0 ppb (35) 6.0 ppb (6) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 4.0 ppb (3) N/A N/A 17.1 μg/m3 (61) 61.0
 
Jan. 10, 2019, 1 a.m. 33.0 ppb (31) 3.0 ppb (3) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 15.5 μg/m3 (57) 57.0
 
Jan. 10, 2019, midnight 39.0 ppb (36) 7.0 ppb (6) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 6.0 ppb (5) N/A N/A 17.9 μg/m3 (63) 63.0
 
Jan. 9, 2019, 11 p.m. 27.0 ppb (25) 6.0 ppb (6) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 16.7 μg/m3 (60) 60.0
 
Jan. 9, 2019, 10 p.m. 27.0 ppb (25) 9.0 ppb (8) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 21.0 ppb (16) N/A N/A 19.0 μg/m3 (65) 65.0
 
Jan. 9, 2019, 9 p.m. 19.0 ppb (18) 7.0 ppb (6) N/A 6.0 ppb (6) N/A 2.0 ppb (3) 27.0 ppb (21) N/A N/A 19.1 μg/m3 (65) 65.0
 
Jan. 9, 2019, 8 p.m. 27.0 ppb (25) 13.0 ppb (12) N/A 7.0 ppb (6) N/A 5.0 ppb (7) 23.0 ppb (18) N/A N/A 17.4 μg/m3 (61) 61.0
 
Jan. 9, 2019, 7 p.m. 28.0 ppb (26) 14.0 ppb (13) N/A 7.0 ppb (6) N/A 2.0 ppb (3) 23.0 ppb (18) N/A N/A 15.4 μg/m3 (57) 57.0
 
Jan. 9, 2019, 6 p.m. 27.0 ppb (25) 12.0 ppb (11) N/A 8.0 ppb (7) N/A 4.0 ppb (6) 22.0 ppb (17) N/A N/A 16.1 μg/m3 (59) 59.0
 
Jan. 9, 2019, 5 p.m. 23.0 ppb (21) 8.0 ppb (7) N/A 7.0 ppb (6) N/A 4.0 ppb (6) 21.0 ppb (16) N/A N/A 16.2 μg/m3 (59) 59.0
 
Jan. 9, 2019, 4 p.m. 24.0 ppb (22) 7.0 ppb (6) N/A 8.0 ppb (7) N/A 8.0 ppb (11) 19.0 ppb (15) N/A N/A 16.1 μg/m3 (59) 59.0
 
Jan. 9, 2019, 3 p.m. 36.0 ppb (33) 10.0 ppb (9) N/A 14.0 ppb (13) N/A 4.0 ppb (6) 8.0 ppb (6) N/A N/A 16.1 μg/m3 (59) 59.0
 
Jan. 9, 2019, 2 p.m. 29.0 ppb (27) 3.0 ppb (3) N/A 13.0 ppb (12) N/A 4.0 ppb (6) 10.0 ppb (8) N/A N/A 17.4 μg/m3 (61) 61.0
 
Jan. 9, 2019, 1 p.m. 26.0 ppb (24) 2.0 ppb (2) N/A 12.0 ppb (11) N/A 5.0 ppb (7) 10.0 ppb (8) N/A N/A 19.9 μg/m3 (67) 67.0
 
Jan. 9, 2019, noon 23.0 ppb (21) 2.0 ppb (2) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 12.0 ppb (9) N/A N/A 20.3 μg/m3 (68) 68.0
 
Jan. 9, 2019, 11 a.m. 25.0 ppb (23) 2.0 ppb (2) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 20.6 μg/m3 (68) 68.0
 
Jan. 9, 2019, 10 a.m. 34.0 ppb (31) 4.0 ppb (4) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 4.0 ppb (3) N/A N/A 19.0 μg/m3 (65) 65.0