AQSQID: 261630015

Site Name: Detroit - Southwest

Location: Detroit (Fort St W), MI

Reporting: True, Located: True

Current AQI: 24.0

Detroit (Fort St W) MI, US: 42.3042, -83.1072

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 17, 2020, noon N/A N/A N/A 26.0 ppb (24) N/A 1.0 ppb (1) N/A N/A N/A N/A 24.0
 
Jan. 17, 2020, 11 a.m. N/A N/A N/A 17.0 ppb (16) N/A 1.0 ppb (1) N/A N/A N/A N/A 16.0
 
Jan. 17, 2020, 10 a.m. N/A N/A N/A 11.0 ppb (10) N/A 1.0 ppb (1) N/A N/A N/A 39.5 μg/m3 (110) 110.0
 
Jan. 17, 2020, 9 a.m. N/A N/A N/A 12.0 ppb (11) N/A 1.0 ppb (1) N/A N/A N/A 20.1 μg/m3 (67) 67.0
 
Jan. 17, 2020, 8 a.m. N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) N/A N/A N/A N/A 8.0
 
Jan. 17, 2020, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A 1.0
 
Jan. 17, 2020, 6 a.m. N/A N/A N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A N/A N/A 31.9 μg/m3 (92) 92.0
 
Jan. 17, 2020, 5 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A N/A N/A -2.7 μg/m3 (0) 5.0
 
Jan. 17, 2020, 4 a.m. N/A N/A N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A -2.4 μg/m3 (0) 6.0
 
Jan. 17, 2020, 3 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A -4.1 μg/m3 (0) 6.0
 
Jan. 17, 2020, 2 a.m. N/A N/A N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A N/A N/A N/A 7.0
 
Jan. 17, 2020, 1 a.m. N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) N/A N/A N/A 3.2 μg/m3 (13) 13.0
 
Jan. 17, 2020, midnight N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) N/A N/A N/A 32.3 μg/m3 (93) 93.0
 
Jan. 16, 2020, 11 p.m. N/A N/A N/A 10.0 ppb (9) N/A 1.0 ppb (1) N/A N/A N/A 9.8 μg/m3 (41) 41.0
 
Jan. 16, 2020, 10 p.m. N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) N/A N/A N/A 11.1 μg/m3 (46) 46.0
 
Jan. 16, 2020, 9 p.m. N/A N/A N/A 10.0 ppb (9) N/A 1.0 ppb (1) N/A N/A N/A 9.3 μg/m3 (39) 39.0
 
Jan. 16, 2020, 8 p.m. N/A N/A N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A N/A N/A 2.9 μg/m3 (12) 12.0
 
Jan. 16, 2020, 7 p.m. N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) N/A N/A N/A -0.6 μg/m3 (0) 8.0
 
Jan. 16, 2020, 6 p.m. N/A N/A N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A N/A N/A 25.1 μg/m3 (78) 78.0
 
Jan. 16, 2020, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 17.8 μg/m3 (62) 62.0
 
Jan. 16, 2020, 4 p.m. N/A N/A N/A 10.0 ppb (9) N/A N/A N/A N/A N/A 7.7 μg/m3 (32) 32.0
 
Jan. 16, 2020, 3 p.m. N/A N/A N/A 11.0 ppb (10) N/A 1.0 ppb (1) N/A N/A N/A 8.5 μg/m3 (35) 35.0
 
Jan. 16, 2020, 2 p.m. N/A N/A N/A 13.0 ppb (12) N/A 1.0 ppb (1) N/A N/A N/A 3.5 μg/m3 (15) 15.0
 
Jan. 16, 2020, 1 p.m. N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) N/A N/A N/A -2.7 μg/m3 (0) 8.0
 
Jan. 16, 2020, noon N/A N/A N/A 10.0 ppb (9) N/A 1.0 ppb (1) N/A N/A N/A 10.1 μg/m3 (42) 42.0
 
Jan. 16, 2020, 11 a.m. N/A N/A N/A 10.0 ppb (9) N/A 1.0 ppb (1) N/A N/A N/A 23.0 μg/m3 (73) 73.0
 
Jan. 16, 2020, 10 a.m. N/A N/A N/A 10.0 ppb (9) N/A 1.0 ppb (1) N/A N/A N/A 6.6 μg/m3 (28) 28.0
 
Jan. 16, 2020, 9 a.m. N/A N/A N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A N/A N/A 3.7 μg/m3 (15) 15.0
 
Jan. 16, 2020, 8 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 1.5 μg/m3 (6) 6.0
 
Jan. 16, 2020, 7 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 10.8 μg/m3 (45) 45.0
 
Jan. 16, 2020, 6 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 45.1 μg/m3 (124) 124.0
 
Jan. 16, 2020, 5 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A N/A N/A N/A 15.2 μg/m3 (57) 57.0
 
Jan. 16, 2020, 4 a.m. N/A N/A N/A 10.0 ppb (9) N/A 1.0 ppb (1) N/A N/A N/A 20.3 μg/m3 (68) 68.0
 
Jan. 16, 2020, 3 a.m. N/A N/A N/A 17.0 ppb (16) N/A 1.0 ppb (1) N/A N/A N/A 22.7 μg/m3 (73) 73.0
 
Jan. 16, 2020, 2 a.m. N/A N/A N/A 26.0 ppb (24) N/A 1.0 ppb (1) N/A N/A N/A 25.0 μg/m3 (78) 78.0
 
Jan. 16, 2020, 1 a.m. N/A N/A N/A 23.0 ppb (21) N/A 1.0 ppb (1) N/A N/A N/A 20.0 μg/m3 (67) 67.0
 
Jan. 16, 2020, midnight N/A N/A N/A 15.0 ppb (14) N/A 1.0 ppb (1) N/A N/A N/A 19.5 μg/m3 (66) 66.0
 
Jan. 15, 2020, 11 p.m. N/A N/A N/A 17.0 ppb (16) N/A 1.0 ppb (1) N/A N/A N/A 17.2 μg/m3 (61) 61.0
 
Jan. 15, 2020, 10 p.m. N/A N/A N/A 20.0 ppb (19) N/A 1.0 ppb (1) N/A N/A N/A 8.1 μg/m3 (34) 34.0
 
Jan. 15, 2020, 9 p.m. N/A N/A N/A 16.0 ppb (15) N/A 1.0 ppb (1) N/A N/A N/A 13.5 μg/m3 (53) 53.0
 
Jan. 15, 2020, 8 p.m. N/A N/A N/A 14.0 ppb (13) N/A 1.0 ppb (1) N/A N/A N/A 30.0 μg/m3 (88) 88.0
 
Jan. 15, 2020, 7 p.m. N/A N/A N/A 11.0 ppb (10) N/A 1.0 ppb (1) N/A N/A N/A 26.7 μg/m3 (81) 81.0
 
Jan. 15, 2020, 6 p.m. N/A N/A N/A 11.0 ppb (10) N/A 2.0 ppb (3) N/A N/A N/A 15.3 μg/m3 (57) 57.0
 
Jan. 15, 2020, 5 p.m. N/A N/A N/A 12.0 ppb (11) N/A 1.0 ppb (1) N/A N/A N/A 12.3 μg/m3 (51) 51.0
 
Jan. 15, 2020, 4 p.m. N/A N/A N/A 14.0 ppb (13) N/A 1.0 ppb (1) N/A N/A N/A 16.7 μg/m3 (60) 60.0
 
Jan. 15, 2020, 3 p.m. N/A N/A N/A 18.0 ppb (17) N/A 2.0 ppb (3) N/A N/A N/A 21.1 μg/m3 (69) 69.0
 
Jan. 15, 2020, 2 p.m. N/A N/A N/A 31.0 ppb (29) N/A 2.0 ppb (3) N/A N/A N/A 29.9 μg/m3 (88) 88.0
 
Jan. 15, 2020, 1 p.m. N/A N/A N/A 43.0 ppb (40) N/A 2.0 ppb (3) N/A N/A N/A 15.3 μg/m3 (57) 57.0
 
Jan. 15, 2020, noon N/A N/A N/A 30.0 ppb (28) N/A 1.0 ppb (1) N/A N/A N/A 7.1 μg/m3 (30) 30.0
 
Jan. 15, 2020, 11 a.m. N/A N/A N/A 26.0 ppb (24) N/A 1.0 ppb (1) N/A N/A N/A 18.1 μg/m3 (63) 63.0
 
Jan. 15, 2020, 10 a.m. N/A N/A N/A 26.0 ppb (24) N/A 1.0 ppb (1) N/A N/A N/A 34.5 μg/m3 (98) 98.0
 
Jan. 15, 2020, 9 a.m. N/A N/A N/A 26.0 ppb (24) N/A 1.0 ppb (1) N/A N/A N/A 11.7 μg/m3 (49) 49.0
 
Jan. 15, 2020, 8 a.m. N/A N/A N/A 31.0 ppb (29) N/A 1.0 ppb (1) N/A N/A N/A 15.8 μg/m3 (58) 58.0
 
Jan. 15, 2020, 7 a.m. N/A N/A N/A 21.0 ppb (19) N/A 1.0 ppb (1) N/A N/A N/A 14.3 μg/m3 (55) 55.0
 
Jan. 15, 2020, 6 a.m. N/A N/A N/A 13.0 ppb (12) N/A 1.0 ppb (1) N/A N/A N/A 20.6 μg/m3 (68) 68.0
 
Jan. 15, 2020, 5 a.m. N/A N/A N/A 16.0 ppb (15) N/A N/A N/A N/A N/A 11.4 μg/m3 (48) 48.0
 
Jan. 15, 2020, 4 a.m. N/A N/A N/A 17.0 ppb (16) N/A 1.0 ppb (1) N/A N/A N/A 10.6 μg/m3 (44) 44.0
 
Jan. 15, 2020, 3 a.m. N/A N/A N/A 14.0 ppb (13) N/A 1.0 ppb (1) N/A N/A N/A 5.4 μg/m3 (23) 23.0
 
Jan. 15, 2020, 2 a.m. N/A N/A N/A 14.0 ppb (13) N/A 1.0 ppb (1) N/A N/A N/A N/A 13.0
 
Jan. 15, 2020, 1 a.m. N/A N/A N/A 13.0 ppb (12) N/A 1.0 ppb (1) N/A N/A N/A 22.0 μg/m3 (71) 71.0
 
Jan. 15, 2020, midnight N/A N/A N/A 14.0 ppb (13) N/A 1.0 ppb (1) N/A N/A N/A 36.3 μg/m3 (102) 102.0
 
Jan. 14, 2020, 11 p.m. N/A N/A N/A 16.0 ppb (15) N/A 1.0 ppb (1) N/A N/A N/A 4.5 μg/m3 (19) 19.0
 
Jan. 14, 2020, 10 p.m. N/A N/A N/A 16.0 ppb (15) N/A 1.0 ppb (1) N/A N/A N/A 25.0 μg/m3 (78) 78.0
 
Jan. 14, 2020, 9 p.m. N/A N/A N/A 16.0 ppb (15) N/A 1.0 ppb (1) N/A N/A N/A 28.2 μg/m3 (84) 84.0
 
Jan. 14, 2020, 8 p.m. N/A N/A N/A 15.0 ppb (14) N/A 1.0 ppb (1) N/A N/A N/A 12.5 μg/m3 (51) 51.0
 
Jan. 14, 2020, 7 p.m. N/A N/A N/A 15.0 ppb (14) N/A 1.0 ppb (1) N/A N/A N/A 16.8 μg/m3 (60) 60.0
 
Jan. 14, 2020, 6 p.m. N/A N/A N/A 15.0 ppb (14) N/A 2.0 ppb (3) N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 14, 2020, 5 p.m. N/A N/A N/A 16.0 ppb (15) N/A 1.0 ppb (1) N/A N/A N/A 15.4 μg/m3 (57) 57.0
 
Jan. 14, 2020, 4 p.m. N/A N/A N/A 17.0 ppb (16) N/A 1.0 ppb (1) N/A N/A N/A 5.9 μg/m3 (25) 25.0
 
Jan. 14, 2020, 3 p.m. N/A N/A N/A 14.0 ppb (13) N/A 1.0 ppb (1) N/A N/A N/A 27.2 μg/m3 (82) 82.0
 
Jan. 14, 2020, 2 p.m. N/A N/A N/A 15.0 ppb (14) N/A 1.0 ppb (1) N/A N/A N/A 19.7 μg/m3 (66) 66.0
 
Jan. 14, 2020, 1 p.m. N/A N/A N/A 20.0 ppb (19) N/A 1.0 ppb (1) N/A N/A N/A -0.7 μg/m3 (0) 19.0
 
Jan. 14, 2020, noon N/A N/A N/A 17.0 ppb (16) N/A 1.0 ppb (1) N/A N/A N/A 10.1 μg/m3 (42) 42.0
 
Jan. 14, 2020, 11 a.m. N/A N/A N/A 13.0 ppb (12) N/A 1.0 ppb (1) N/A N/A N/A 4.7 μg/m3 (20) 20.0
 
Jan. 14, 2020, 10 a.m. N/A N/A N/A 14.0 ppb (13) N/A 1.0 ppb (1) N/A N/A N/A 8.4 μg/m3 (35) 35.0
 
Jan. 14, 2020, 9 a.m. N/A N/A N/A 16.0 ppb (15) N/A 1.0 ppb (1) N/A N/A N/A 8.7 μg/m3 (36) 36.0
 
Jan. 14, 2020, 8 a.m. N/A N/A N/A 13.0 ppb (12) N/A 1.0 ppb (1) N/A N/A N/A 13.0 μg/m3 (52) 52.0
 
Jan. 14, 2020, 7 a.m. N/A N/A N/A 12.0 ppb (11) N/A 1.0 ppb (1) N/A N/A N/A 6.9 μg/m3 (29) 29.0
 
Jan. 14, 2020, 6 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 1.7 μg/m3 (7) 7.0
 
Jan. 14, 2020, 5 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A N/A N/A -2.6 μg/m3 (0) 5.0
 
Jan. 14, 2020, 4 a.m. N/A N/A N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 1.3 μg/m3 (5) 6.0
 
Jan. 14, 2020, 3 a.m. N/A N/A N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A N/A N/A 37.6 μg/m3 (105) 105.0
 
Jan. 14, 2020, 2 a.m. N/A N/A N/A 18.0 ppb (17) N/A 1.0 ppb (1) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 14, 2020, 1 a.m. N/A N/A N/A 23.0 ppb (21) N/A 1.0 ppb (1) N/A N/A N/A -1.8 μg/m3 (0) 21.0
 
Jan. 14, 2020, midnight N/A N/A N/A 19.0 ppb (18) N/A 1.0 ppb (1) N/A N/A N/A -0.3 μg/m3 (0) 18.0
 
Jan. 13, 2020, 11 p.m. N/A N/A N/A 23.0 ppb (21) N/A 1.0 ppb (1) N/A N/A N/A -3.6 μg/m3 (0) 21.0
 
Jan. 13, 2020, 10 p.m. N/A N/A N/A 18.0 ppb (17) N/A 1.0 ppb (1) N/A N/A N/A 35.5 μg/m3 (100) 100.0
 
Jan. 13, 2020, 9 p.m. N/A N/A N/A 20.0 ppb (19) N/A 1.0 ppb (1) N/A N/A N/A 32.3 μg/m3 (93) 93.0
 
Jan. 13, 2020, 8 p.m. N/A N/A N/A 19.0 ppb (18) N/A 1.0 ppb (1) N/A N/A N/A 9.3 μg/m3 (39) 39.0
 
Jan. 13, 2020, 7 p.m. N/A N/A N/A 18.0 ppb (17) N/A 1.0 ppb (1) N/A N/A N/A 7.6 μg/m3 (32) 32.0
 
Jan. 13, 2020, 6 p.m. N/A N/A N/A 16.0 ppb (15) N/A 1.0 ppb (1) N/A N/A N/A 3.8 μg/m3 (16) 16.0
 
Jan. 13, 2020, 5 p.m. N/A N/A N/A 17.0 ppb (16) N/A 1.0 ppb (1) N/A N/A N/A 7.2 μg/m3 (30) 30.0
 
Jan. 13, 2020, 4 p.m. N/A N/A N/A 17.0 ppb (16) N/A 1.0 ppb (1) N/A N/A N/A 36.6 μg/m3 (103) 103.0
 
Jan. 13, 2020, 3 p.m. N/A N/A N/A 23.0 ppb (21) N/A 1.0 ppb (1) N/A N/A N/A 26.9 μg/m3 (82) 82.0
 
Jan. 13, 2020, 2 p.m. N/A N/A N/A 20.0 ppb (19) N/A 1.0 ppb (1) N/A N/A N/A 9.5 μg/m3 (40) 40.0
 
Jan. 13, 2020, 1 p.m. N/A N/A N/A 24.0 ppb (22) N/A 1.0 ppb (1) N/A N/A N/A -3.3 μg/m3 (0) 22.0
 
Jan. 13, 2020, noon N/A N/A N/A 23.0 ppb (21) N/A 1.0 ppb (1) N/A N/A N/A 2.0 μg/m3 (8) 21.0
 
Jan. 13, 2020, 11 a.m. N/A N/A N/A 30.0 ppb (28) N/A 1.0 ppb (1) N/A N/A N/A -0.8 μg/m3 (0) 28.0
 
Jan. 13, 2020, 10 a.m. N/A N/A N/A 30.0 ppb (28) N/A 1.0 ppb (1) N/A N/A N/A 29.3 μg/m3 (87) 87.0
 
Jan. 13, 2020, 9 a.m. N/A N/A N/A 21.0 ppb (19) N/A 1.0 ppb (1) N/A N/A N/A 12.2 μg/m3 (50) 50.0
 
Jan. 13, 2020, 8 a.m. N/A N/A N/A 11.0 ppb (10) N/A 1.0 ppb (1) N/A N/A N/A -4.6 μg/m3 (0) 10.0
 
Jan. 13, 2020, 7 a.m. N/A N/A N/A 14.0 ppb (13) N/A 1.0 ppb (1) N/A N/A N/A N/A 13.0
 
Jan. 13, 2020, 6 a.m. N/A N/A N/A 12.0 ppb (11) N/A 1.0 ppb (1) N/A N/A N/A N/A 11.0
 
Jan. 13, 2020, 5 a.m. N/A N/A N/A 11.0 ppb (10) N/A N/A N/A N/A N/A 59.1 μg/m3 (152) 152.0
 
Jan. 13, 2020, 4 a.m. N/A N/A N/A 11.0 ppb (10) N/A 1.0 ppb (1) N/A N/A N/A 9.2 μg/m3 (38) 38.0
 
Jan. 13, 2020, 3 a.m. N/A N/A N/A 10.0 ppb (9) N/A 1.0 ppb (1) N/A N/A N/A 1.0 μg/m3 (4) 9.0
 
Jan. 13, 2020, 2 a.m. N/A N/A N/A 11.0 ppb (10) N/A 1.0 ppb (1) N/A N/A N/A 1.7 μg/m3 (7) 10.0
 
Jan. 13, 2020, 1 a.m. N/A N/A N/A 11.0 ppb (10) N/A 1.0 ppb (1) N/A N/A N/A N/A 10.0
 
Jan. 13, 2020, midnight N/A N/A N/A 11.0 ppb (10) N/A 1.0 ppb (1) N/A N/A N/A N/A 10.0
 
Jan. 12, 2020, 11 p.m. N/A N/A N/A 11.0 ppb (10) N/A 1.0 ppb (1) N/A N/A N/A 28.8 μg/m3 (86) 86.0
 
Jan. 12, 2020, 10 p.m. N/A N/A N/A 14.0 ppb (13) N/A 1.0 ppb (1) N/A N/A N/A 22.4 μg/m3 (72) 72.0
 
Jan. 12, 2020, 9 p.m. N/A N/A N/A 21.0 ppb (19) N/A 4.0 ppb (6) N/A N/A N/A 14.1 μg/m3 (54) 54.0
 
Jan. 12, 2020, 8 p.m. N/A N/A N/A 16.0 ppb (15) N/A 5.0 ppb (7) N/A N/A N/A 3.3 μg/m3 (14) 15.0
 
Jan. 12, 2020, 7 p.m. N/A N/A N/A 13.0 ppb (12) N/A 4.0 ppb (6) N/A N/A N/A -3.6 μg/m3 (0) 12.0
 
Jan. 12, 2020, 6 p.m. N/A N/A N/A 11.0 ppb (10) N/A 3.0 ppb (4) N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 12, 2020, 5 p.m. N/A N/A N/A 13.0 ppb (12) N/A 3.0 ppb (4) N/A N/A N/A 27.3 μg/m3 (83) 83.0
 
Jan. 12, 2020, 4 p.m. N/A N/A N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A N/A N/A 1.6 μg/m3 (7) 7.0
 
Jan. 12, 2020, 3 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A N/A -2.7 μg/m3 (0) 5.0
 
Jan. 12, 2020, 2 p.m. N/A N/A N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A N/A N/A 2.1 μg/m3 (9) 9.0
 
Jan. 12, 2020, 1 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A 24.5 μg/m3 (77) 77.0
 
Jan. 12, 2020, noon N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A N/A 2.4 μg/m3 (10) 10.0
 
Jan. 12, 2020, 11 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A N/A 4.0
 
Jan. 12, 2020, 10 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A -4.9 μg/m3 (0) 4.0
 
Jan. 12, 2020, 9 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 31.9 μg/m3 (92) 92.0
 
Jan. 12, 2020, 8 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A -1.3 μg/m3 (0) 3.0
 
Jan. 12, 2020, 7 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A 0.4 μg/m3 (2) 4.0
 
Jan. 12, 2020, 6 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A N/A N/A 4.0
 
Jan. 12, 2020, 5 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A N/A N/A N/A 5.0
 
Jan. 12, 2020, 4 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 19.5 μg/m3 (66) 66.0
 
Jan. 12, 2020, 3 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 12.7 μg/m3 (51) 51.0
 
Jan. 12, 2020, 2 a.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A -2.7 μg/m3 (0) 6.0
 
Jan. 12, 2020, 1 a.m. N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) N/A N/A N/A -2.7 μg/m3 (0) 8.0
 
Jan. 12, 2020, midnight N/A N/A N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A N/A N/A N/A 7.0
 
Jan. 11, 2020, 11 p.m. N/A N/A N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A N/A 6.0
 
Jan. 11, 2020, 10 p.m. N/A N/A N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A -2.9 μg/m3 (0) 6.0
 
Jan. 11, 2020, 9 p.m. N/A N/A N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A N/A N/A 25.5 μg/m3 (79) 79.0
 
Jan. 11, 2020, 8 p.m. N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) N/A N/A N/A 17.0 μg/m3 (61) 61.0
 
Jan. 11, 2020, 7 p.m. N/A N/A N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A N/A N/A -1.9 μg/m3 (0) 7.0
 
Jan. 11, 2020, 6 p.m. N/A N/A N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A N/A 6.0
 
Jan. 11, 2020, 5 p.m. N/A N/A N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A N/A 6.0
 
Jan. 11, 2020, 4 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 18.4 μg/m3 (64) 64.0
 
Jan. 11, 2020, 3 p.m. N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) N/A N/A N/A 28.1 μg/m3 (84) 84.0
 
Jan. 11, 2020, 2 p.m. N/A N/A N/A 30.0 ppb (28) N/A 1.0 ppb (1) N/A N/A N/A N/A 28.0
 
Jan. 11, 2020, 1 p.m. N/A N/A N/A 29.0 ppb (27) N/A 1.0 ppb (1) N/A N/A N/A N/A 27.0
 
Jan. 11, 2020, noon N/A N/A N/A 20.0 ppb (19) N/A 2.0 ppb (3) N/A N/A N/A N/A 19.0
 
Jan. 11, 2020, 11 a.m. N/A N/A N/A 11.0 ppb (10) N/A 11.0 ppb (16) N/A N/A N/A 20.3 μg/m3 (68) 68.0
 
Jan. 11, 2020, 10 a.m. N/A N/A N/A 15.0 ppb (14) N/A 8.0 ppb (11) N/A N/A N/A 18.8 μg/m3 (64) 64.0
 
Jan. 11, 2020, 9 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A N/A 6.0
 
Jan. 11, 2020, 8 a.m. N/A N/A N/A 10.0 ppb (9) N/A 1.0 ppb (1) N/A N/A N/A 21.2 μg/m3 (70) 70.0
 
Jan. 11, 2020, 7 a.m. N/A N/A N/A 11.0 ppb (10) N/A 1.0 ppb (1) N/A N/A N/A 42.5 μg/m3 (118) 118.0
 
Jan. 11, 2020, 6 a.m. N/A N/A N/A 11.0 ppb (10) N/A 1.0 ppb (1) N/A N/A N/A N/A 10.0
 
Jan. 11, 2020, 5 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A N/A N/A N/A 6.0
 
Jan. 11, 2020, 4 a.m. N/A N/A N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A N/A N/A 15.2 μg/m3 (57) 57.0
 
Jan. 11, 2020, 3 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 10.8 μg/m3 (45) 45.0
 
Jan. 11, 2020, 2 a.m. N/A N/A N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A N/A N/A 1.8 μg/m3 (8) 8.0
 
Jan. 11, 2020, 1 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A -0.6 μg/m3 (0) 6.0
 
Jan. 11, 2020, midnight N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 0.7 μg/m3 (3) 6.0
 
Jan. 10, 2020, 11 p.m. N/A N/A N/A 10.0 ppb (9) N/A 1.0 ppb (1) N/A N/A N/A 9.5 μg/m3 (40) 40.0
 
Jan. 10, 2020, 10 p.m. N/A N/A N/A 13.0 ppb (12) N/A 1.0 ppb (1) N/A N/A N/A 38.4 μg/m3 (107) 107.0
 
Jan. 10, 2020, 9 p.m. N/A N/A N/A 21.0 ppb (19) N/A 1.0 ppb (1) N/A N/A N/A 12.2 μg/m3 (50) 50.0
 
Jan. 10, 2020, 8 p.m. N/A N/A N/A 21.0 ppb (19) N/A 1.0 ppb (1) N/A N/A N/A 14.0 μg/m3 (54) 54.0
 
Jan. 10, 2020, 7 p.m. N/A N/A N/A 23.0 ppb (21) N/A 1.0 ppb (1) N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 10, 2020, 6 p.m. N/A N/A N/A 18.0 ppb (17) N/A 1.0 ppb (1) N/A N/A N/A 9.2 μg/m3 (38) 38.0
 
Jan. 10, 2020, 5 p.m. N/A N/A N/A 18.0 ppb (17) N/A 1.0 ppb (1) N/A N/A N/A 11.8 μg/m3 (49) 49.0
 
Jan. 10, 2020, 4 p.m. N/A N/A N/A 19.0 ppb (18) N/A 1.0 ppb (1) N/A N/A N/A 11.1 μg/m3 (46) 46.0
 
Jan. 10, 2020, 3 p.m. N/A N/A N/A 16.0 ppb (15) N/A 1.0 ppb (1) N/A N/A N/A 10.6 μg/m3 (44) 44.0
 
Jan. 10, 2020, 2 p.m. N/A N/A N/A 19.0 ppb (18) N/A 1.0 ppb (1) N/A N/A N/A 12.6 μg/m3 (51) 51.0
 
Jan. 10, 2020, 1 p.m. N/A N/A N/A 19.0 ppb (18) N/A 1.0 ppb (1) N/A N/A N/A 1.5 μg/m3 (6) 18.0