AQSQID: 530330030

Site Name: Seattle-10th & Weller

Location: Seattle, WA

Reporting: True, Located: True

Current AQI: 13.0

Seattle WA, US: 47.597222, -122.319722

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 20, 2019, 1 p.m. 14.0 ppb (13) 1.2 ppb (1) N/A 13.0 ppb (12) N/A N/A N/A 0.28 ppb (3) N/A 3.0 μg/m3 (12) 13.0
 
Jan. 20, 2019, noon 16.7 ppb (15) 1.3 ppb (1) N/A 15.0 ppb (14) N/A N/A N/A 0.3 ppb (3) N/A 2.0 μg/m3 (8) 15.0
 
Jan. 20, 2019, 11 a.m. 27.3 ppb (25) 6.9 ppb (6) N/A 20.0 ppb (19) N/A N/A N/A 0.47 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2019, 10 a.m. 40.0 ppb (37) 14.9 ppb (14) N/A 25.0 ppb (23) N/A N/A N/A 0.52 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 20, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 20, 2019, 8 a.m. 37.1 ppb (34) 11.7 ppb (11) N/A 25.0 ppb (23) N/A N/A N/A 0.63 ppb (7) N/A 7.0 μg/m3 (29) 34.0
 
Jan. 20, 2019, 7 a.m. 43.5 ppb (40) 15.8 ppb (15) N/A 28.0 ppb (26) N/A N/A N/A 0.82 ppb (9) N/A 9.0 μg/m3 (38) 40.0
 
Jan. 20, 2019, 6 a.m. 56.5 ppb (53) 28.6 ppb (26) N/A 28.0 ppb (26) N/A N/A N/A 0.86 ppb (10) N/A 9.0 μg/m3 (38) 53.0
 
Jan. 20, 2019, 5 a.m. 14.4 ppb (13) 4.2 ppb (4) N/A 10.0 ppb (9) N/A N/A N/A 0.36 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 20, 2019, 4 a.m. 17.9 ppb (17) 2.3 ppb (2) N/A 16.0 ppb (15) N/A N/A N/A 0.34 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 20, 2019, 3 a.m. 18.1 ppb (17) 4.3 ppb (4) N/A 14.0 ppb (13) N/A N/A N/A 0.32 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2019, 2 a.m. 29.5 ppb (27) 9.0 ppb (8) N/A 20.0 ppb (19) N/A N/A N/A 0.43 ppb (5) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 20, 2019, 1 a.m. 21.6 ppb (20) 7.4 ppb (7) N/A 14.0 ppb (13) N/A N/A N/A 0.31 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 20, 2019, midnight 26.0 ppb (24) 9.9 ppb (9) N/A 16.0 ppb (15) N/A N/A N/A 0.35 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 19, 2019, 11 p.m. 35.6 ppb (33) 17.7 ppb (16) N/A 18.0 ppb (17) N/A N/A N/A 0.47 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 19, 2019, 10 p.m. 26.2 ppb (24) 11.3 ppb (10) N/A 15.0 ppb (14) N/A N/A N/A 0.37 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 19, 2019, 9 p.m. 29.4 ppb (27) 14.0 ppb (13) N/A 15.0 ppb (14) N/A N/A N/A 0.35 ppb (4) N/A 5.0 μg/m3 (21) 27.0
 
Jan. 19, 2019, 8 p.m. 28.8 ppb (27) 14.8 ppb (14) N/A 14.0 ppb (13) N/A N/A N/A 0.34 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 19, 2019, 7 p.m. 24.0 ppb (22) 11.2 ppb (10) N/A 13.0 ppb (12) N/A N/A N/A 0.3 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 19, 2019, 6 p.m. 27.7 ppb (26) 12.4 ppb (11) N/A 15.0 ppb (14) N/A N/A N/A 0.32 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 19, 2019, 5 p.m. 28.4 ppb (26) 13.3 ppb (12) N/A 15.0 ppb (14) N/A N/A N/A 0.37 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 19, 2019, 4 p.m. 33.8 ppb (31) 14.9 ppb (14) N/A 19.0 ppb (18) N/A N/A N/A 0.36 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 19, 2019, 3 p.m. 24.1 ppb (22) 11.0 ppb (10) N/A 13.0 ppb (12) N/A N/A N/A 0.27 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 19, 2019, 2 p.m. 23.8 ppb (22) 10.0 ppb (9) N/A 14.0 ppb (13) N/A N/A N/A 0.3 ppb (3) N/A 13.0 μg/m3 (52) 52.0
 
Jan. 19, 2019, 1 p.m. 17.3 ppb (16) 5.8 ppb (5) N/A 12.0 ppb (11) N/A N/A N/A 0.18 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 19, 2019, noon 10.4 ppb (10) 3.4 ppb (3) N/A 7.0 ppb (6) N/A N/A N/A 0.14 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 19, 2019, 9 a.m. 15.3 ppb (14) 3.9 ppb (4) N/A 11.0 ppb (10) N/A N/A N/A 0.25 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 19, 2019, 8 a.m. 22.1 ppb (20) 8.8 ppb (8) N/A 13.0 ppb (12) N/A N/A N/A 0.34 ppb (4) N/A 0.0 μg/m3 (0) 20.0
 
Jan. 19, 2019, 7 a.m. 19.0 ppb (18) 7.9 ppb (7) N/A 11.0 ppb (10) N/A N/A N/A 0.34 ppb (4) N/A 0.0 μg/m3 (0) 18.0
 
Jan. 19, 2019, 6 a.m. 7.2 ppb (7) 2.2 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A 0.2 ppb (2) N/A 2.0 μg/m3 (8) 8.0
 
Jan. 19, 2019, 5 a.m. 14.3 ppb (13) 3.5 ppb (3) N/A 11.0 ppb (10) N/A N/A N/A 0.27 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 19, 2019, 4 a.m. 15.8 ppb (15) 4.2 ppb (4) N/A 12.0 ppb (11) N/A N/A N/A 0.26 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 19, 2019, 3 a.m. 36.1 ppb (33) 13.4 ppb (12) N/A 23.0 ppb (21) N/A N/A N/A 0.52 ppb (6) N/A 6.0 μg/m3 (25) 33.0
 
Jan. 19, 2019, 2 a.m. 34.6 ppb (32) 7.4 ppb (7) N/A 27.0 ppb (25) N/A N/A N/A 0.49 ppb (5) N/A 5.0 μg/m3 (21) 32.0
 
Jan. 19, 2019, 1 a.m. 66.3 ppb (63) 31.7 ppb (29) N/A 35.0 ppb (32) N/A N/A N/A 0.57 ppb (6) N/A 6.0 μg/m3 (25) 63.0
 
Jan. 19, 2019, midnight 99.2 ppb (98) 56.9 ppb (53) N/A 42.0 ppb (39) N/A N/A N/A 0.71 ppb (8) N/A 8.0 μg/m3 (33) 98.0
 
Jan. 18, 2019, 11 p.m. 46.8 ppb (43) 20.3 ppb (19) N/A 27.0 ppb (25) N/A N/A N/A 0.59 ppb (7) N/A 5.0 μg/m3 (21) 43.0
 
Jan. 18, 2019, 10 p.m. 26.4 ppb (24) 8.0 ppb (7) N/A 18.0 ppb (17) N/A N/A N/A 0.36 ppb (4) N/A 3.0 μg/m3 (12) 24.0
 
Jan. 18, 2019, 9 p.m. 33.3 ppb (31) 12.2 ppb (11) N/A 21.0 ppb (19) N/A N/A N/A 0.4 ppb (4) N/A 1.0 μg/m3 (4) 31.0
 
Jan. 18, 2019, 8 p.m. 38.7 ppb (36) 17.5 ppb (16) N/A 21.0 ppb (19) N/A N/A N/A 0.39 ppb (4) N/A 3.0 μg/m3 (12) 36.0
 
Jan. 18, 2019, 7 p.m. 43.8 ppb (41) 19.7 ppb (18) N/A 24.0 ppb (22) N/A N/A N/A 0.38 ppb (4) N/A 4.0 μg/m3 (17) 41.0
 
Jan. 18, 2019, 6 p.m. 55.8 ppb (52) 31.7 ppb (29) N/A 24.0 ppb (22) N/A N/A N/A 0.42 ppb (5) N/A 3.0 μg/m3 (12) 52.0
 
Jan. 18, 2019, 5 p.m. 84.6 ppb (83) 49.9 ppb (46) N/A 35.0 ppb (32) N/A N/A N/A 0.46 ppb (5) N/A 6.0 μg/m3 (25) 83.0
 
Jan. 18, 2019, 4 p.m. 76.2 ppb (74) 38.2 ppb (35) N/A 38.0 ppb (35) N/A N/A N/A 0.47 ppb (5) N/A 5.0 μg/m3 (21) 74.0
 
Jan. 18, 2019, 3 p.m. 58.2 ppb (54) 25.8 ppb (24) N/A 32.0 ppb (30) N/A N/A N/A 0.37 ppb (4) N/A 6.0 μg/m3 (25) 54.0
 
Jan. 18, 2019, 2 p.m. 82.2 ppb (80) 47.6 ppb (44) N/A 35.0 ppb (32) N/A N/A N/A 0.53 ppb (6) N/A 5.0 μg/m3 (21) 80.0
 
Jan. 18, 2019, 1 p.m. 48.5 ppb (45) 24.2 ppb (22) N/A 24.0 ppb (22) N/A N/A N/A 0.44 ppb (5) N/A 6.0 μg/m3 (25) 45.0
 
Jan. 18, 2019, noon 26.0 ppb (24) 9.6 ppb (9) N/A 16.0 ppb (15) N/A N/A N/A 0.24 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 18, 2019, 11 a.m. 15.1 ppb (14) 4.1 ppb (4) N/A 11.0 ppb (10) N/A N/A N/A 0.17 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 18, 2019, 10 a.m. 11.9 ppb (11) 3.4 ppb (3) N/A 9.0 ppb (8) N/A N/A N/A 0.18 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
Jan. 18, 2019, 9 a.m. 13.2 ppb (12) 3.1 ppb (3) N/A 10.0 ppb (9) N/A N/A N/A 0.17 ppb (2) N/A 2.0 μg/m3 (8) 12.0
 
Jan. 18, 2019, 8 a.m. 12.9 ppb (12) 3.4 ppb (3) N/A 10.0 ppb (9) N/A N/A N/A 0.19 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 18, 2019, 7 a.m. 13.9 ppb (13) 5.1 ppb (5) N/A 9.0 ppb (8) N/A N/A N/A 0.22 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 18, 2019, 6 a.m. 19.2 ppb (18) 5.3 ppb (5) N/A 14.0 ppb (13) N/A N/A N/A 0.27 ppb (3) N/A 3.0 μg/m3 (12) 18.0
 
Jan. 18, 2019, 5 a.m. 24.3 ppb (23) 8.7 ppb (8) N/A 16.0 ppb (15) N/A N/A N/A 0.33 ppb (4) N/A 4.0 μg/m3 (17) 23.0
 
Jan. 18, 2019, 4 a.m. 19.3 ppb (18) 7.3 ppb (7) N/A 12.0 ppb (11) N/A N/A N/A 0.29 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 18, 2019, 3 a.m. 24.7 ppb (23) 10.7 ppb (10) N/A 14.0 ppb (13) N/A N/A N/A 0.34 ppb (4) N/A 2.0 μg/m3 (8) 23.0
 
Jan. 18, 2019, 2 a.m. 27.5 ppb (25) 9.8 ppb (9) N/A 18.0 ppb (17) N/A N/A N/A 0.35 ppb (4) N/A 1.0 μg/m3 (4) 25.0
 
Jan. 18, 2019, 1 a.m. 29.6 ppb (27) 10.4 ppb (10) N/A 19.0 ppb (18) N/A N/A N/A 0.38 ppb (4) N/A 2.0 μg/m3 (8) 27.0
 
Jan. 18, 2019, midnight 33.0 ppb (31) 11.4 ppb (11) N/A 22.0 ppb (20) N/A N/A N/A 0.39 ppb (4) N/A 2.0 μg/m3 (8) 31.0
 
Jan. 17, 2019, 11 p.m. 36.7 ppb (34) 16.0 ppb (15) N/A 21.0 ppb (19) N/A N/A N/A 0.42 ppb (5) N/A 5.0 μg/m3 (21) 34.0
 
Jan. 17, 2019, 10 p.m. 66.1 ppb (63) 38.1 ppb (35) N/A 28.0 ppb (26) N/A N/A N/A 0.62 ppb (7) N/A 6.0 μg/m3 (25) 63.0
 
Jan. 17, 2019, 9 p.m. 33.4 ppb (31) 15.2 ppb (14) N/A 18.0 ppb (17) N/A N/A N/A 0.36 ppb (4) N/A 3.0 μg/m3 (12) 31.0
 
Jan. 17, 2019, 8 p.m. 35.8 ppb (33) 14.9 ppb (14) N/A 21.0 ppb (19) N/A N/A N/A 0.35 ppb (4) N/A 7.0 μg/m3 (29) 33.0
 
Jan. 17, 2019, 7 p.m. 132.5 ppb (106) 98.1 ppb (97) N/A 34.0 ppb (31) N/A N/A N/A 0.83 ppb (9) N/A 14.0 μg/m3 (54) 106.0
 
Jan. 17, 2019, 6 p.m. 115.2 ppb (103) 80.0 ppb (78) N/A 35.0 ppb (32) N/A N/A N/A 0.7 ppb (8) N/A 11.0 μg/m3 (46) 103.0
 
Jan. 17, 2019, 5 p.m. 143.7 ppb (108) 102.5 ppb (100) N/A 41.0 ppb (38) N/A N/A N/A 0.67 ppb (7) N/A 11.0 μg/m3 (46) 108.0
 
Jan. 17, 2019, 4 p.m. 198.3 ppb (119) 155.0 ppb (110) N/A 43.0 ppb (40) N/A N/A N/A 0.78 ppb (9) N/A 12.0 μg/m3 (50) 119.0
 
Jan. 17, 2019, 3 p.m. 104.8 ppb (101) 65.4 ppb (62) N/A 39.0 ppb (36) N/A N/A N/A 0.62 ppb (7) N/A 9.0 μg/m3 (38) 101.0
 
Jan. 17, 2019, 2 p.m. 154.0 ppb (110) 109.9 ppb (102) N/A 44.0 ppb (41) N/A N/A N/A 0.7 ppb (8) N/A 11.0 μg/m3 (46) 110.0
 
Jan. 17, 2019, 1 p.m. 72.0 ppb (69) 48.1 ppb (45) N/A 24.0 ppb (22) N/A N/A N/A 0.51 ppb (6) N/A 5.0 μg/m3 (21) 69.0
 
Jan. 17, 2019, noon 27.3 ppb (25) 12.8 ppb (12) N/A 15.0 ppb (14) N/A N/A N/A 0.29 ppb (3) N/A 1.0 μg/m3 (4) 25.0
 
Jan. 17, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
Jan. 17, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
Jan. 17, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
Jan. 17, 2019, 8 a.m. 8.5 ppb (8) 2.6 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A 0.15 ppb (2) N/A 0.0 μg/m3 (0) 8.0
 
Jan. 17, 2019, 7 a.m. 27.7 ppb (26) 12.7 ppb (12) N/A 15.0 ppb (14) N/A N/A N/A 0.35 ppb (4) N/A 2.0 μg/m3 (8) 26.0
 
Jan. 17, 2019, 6 a.m. 76.8 ppb (74) 44.7 ppb (41) N/A 32.0 ppb (30) N/A N/A N/A 0.8 ppb (9) N/A 5.0 μg/m3 (21) 74.0
 
Jan. 17, 2019, 5 a.m. 107.6 ppb (101) 71.4 ppb (69) N/A 36.0 ppb (33) N/A N/A N/A 0.81 ppb (9) N/A 15.0 μg/m3 (56) 101.0
 
Jan. 17, 2019, 4 a.m. 123.4 ppb (104) 87.4 ppb (86) N/A 36.0 ppb (33) N/A N/A N/A 1.17 ppb (13) N/A 8.0 μg/m3 (33) 104.0
 
Jan. 17, 2019, 3 a.m. 42.7 ppb (40) 21.0 ppb (19) N/A 22.0 ppb (20) N/A N/A N/A 0.42 ppb (5) N/A 7.0 μg/m3 (29) 40.0
 
Jan. 17, 2019, 2 a.m. 17.6 ppb (16) 5.6 ppb (5) N/A 12.0 ppb (11) N/A N/A N/A 0.21 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2019, 1 a.m. 78.7 ppb (76) 47.5 ppb (44) N/A 31.0 ppb (29) N/A N/A N/A 0.82 ppb (9) N/A 10.0 μg/m3 (42) 76.0
 
Jan. 17, 2019, midnight 205.4 ppb (120) 163.3 ppb (112) N/A 42.0 ppb (39) N/A N/A N/A 1.49 ppb (17) N/A 20.0 μg/m3 (67) 120.0
 
Jan. 16, 2019, 11 p.m. 217.8 ppb (122) 175.7 ppb (114) N/A 42.0 ppb (39) N/A N/A N/A 1.22 ppb (14) N/A 23.0 μg/m3 (73) 122.0
 
Jan. 16, 2019, 10 p.m. 186.8 ppb (116) 148.9 ppb (109) N/A 38.0 ppb (35) N/A N/A N/A 1.25 ppb (14) N/A 21.0 μg/m3 (69) 116.0
 
Jan. 16, 2019, 9 p.m. 195.7 ppb (118) 162.0 ppb (112) N/A 34.0 ppb (31) N/A N/A N/A 1.0 ppb (11) N/A 27.0 μg/m3 (82) 118.0
 
Jan. 16, 2019, 8 p.m. 195.1 ppb (118) 156.9 ppb (111) N/A 38.0 ppb (35) N/A N/A N/A 0.91 ppb (10) N/A 19.0 μg/m3 (65) 118.0
 
Jan. 16, 2019, 7 p.m. 200.1 ppb (119) 163.7 ppb (112) N/A 36.0 ppb (33) N/A N/A N/A 0.87 ppb (10) N/A 23.0 μg/m3 (73) 119.0
 
Jan. 16, 2019, 6 p.m. 474.9 ppb (170) 414.5 ppb (159) N/A 60.0 ppb (56) N/A N/A N/A 1.85 ppb (21) N/A 46.0 μg/m3 (126) 170.0
 
Jan. 16, 2019, 5 p.m. 211.8 ppb (121) 172.3 ppb (114) N/A 39.0 ppb (36) N/A N/A N/A 1.33 ppb (15) N/A 19.0 μg/m3 (65) 121.0
 
Jan. 16, 2019, 4 p.m. 313.6 ppb (141) 265.4 ppb (132) N/A 48.0 ppb (44) N/A N/A N/A 1.6 ppb (18) N/A 28.0 μg/m3 (84) 141.0
 
Jan. 16, 2019, 3 p.m. 439.5 ppb (164) 378.4 ppb (153) N/A 61.0 ppb (57) N/A N/A N/A 1.85 ppb (21) N/A 40.0 μg/m3 (111) 164.0
 
Jan. 16, 2019, 2 p.m. 133.8 ppb (106) 104.3 ppb (101) N/A 29.0 ppb (27) N/A N/A N/A 0.94 ppb (10) N/A 14.0 μg/m3 (54) 106.0
 
Jan. 16, 2019, 1 p.m. 149.6 ppb (109) 123.5 ppb (104) N/A 26.0 ppb (24) N/A N/A N/A 0.91 ppb (10) N/A 17.0 μg/m3 (61) 109.0
 
Jan. 16, 2019, noon 138.9 ppb (107) 114.2 ppb (103) N/A 25.0 ppb (23) N/A N/A N/A 0.84 ppb (9) N/A 23.0 μg/m3 (73) 107.0
 
Jan. 16, 2019, 11 a.m. 149.0 ppb (109) 123.5 ppb (104) N/A 26.0 ppb (24) N/A N/A N/A 0.88 ppb (10) N/A 27.0 μg/m3 (82) 109.0
 
Jan. 16, 2019, 10 a.m. 158.7 ppb (111) 132.0 ppb (106) N/A 27.0 ppb (25) N/A N/A N/A 0.86 ppb (10) N/A 25.0 μg/m3 (78) 111.0
 
Jan. 16, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (67) 67.0
 
Jan. 16, 2019, 8 a.m. 134.1 ppb (106) 111.8 ppb (102) N/A 22.0 ppb (20) N/A N/A N/A 0.96 ppb (11) N/A 21.0 μg/m3 (69) 106.0
 
Jan. 16, 2019, 7 a.m. 123.6 ppb (104) 101.6 ppb (100) N/A 22.0 ppb (20) N/A N/A N/A 1.05 ppb (12) N/A 22.0 μg/m3 (71) 104.0
 
Jan. 16, 2019, 6 a.m. 173.8 ppb (114) 143.9 ppb (108) N/A 30.0 ppb (28) N/A N/A N/A 1.1 ppb (12) N/A 23.0 μg/m3 (73) 114.0
 
Jan. 16, 2019, 5 a.m. 201.6 ppb (119) 168.7 ppb (113) N/A 33.0 ppb (31) N/A N/A N/A 1.37 ppb (15) N/A 24.0 μg/m3 (76) 119.0
 
Jan. 16, 2019, 4 a.m. 191.5 ppb (117) 159.0 ppb (111) N/A 32.0 ppb (30) N/A N/A N/A 1.37 ppb (15) N/A 23.0 μg/m3 (73) 117.0
 
Jan. 16, 2019, 3 a.m. 191.5 ppb (117) 156.7 ppb (111) N/A 35.0 ppb (32) N/A N/A N/A 1.07 ppb (12) N/A 17.0 μg/m3 (61) 117.0
 
Jan. 16, 2019, 2 a.m. 133.5 ppb (106) 102.7 ppb (100) N/A 31.0 ppb (29) N/A N/A N/A 0.85 ppb (9) N/A 13.0 μg/m3 (52) 106.0
 
Jan. 16, 2019, 1 a.m. 193.6 ppb (118) 154.7 ppb (110) N/A 39.0 ppb (36) N/A N/A N/A 0.94 ppb (10) N/A 19.0 μg/m3 (65) 118.0
 
Jan. 16, 2019, midnight 173.9 ppb (114) 136.7 ppb (107) N/A 37.0 ppb (34) N/A N/A N/A 0.93 ppb (10) N/A 16.0 μg/m3 (59) 114.0
 
Jan. 15, 2019, 11 p.m. 154.9 ppb (110) 119.5 ppb (104) N/A 35.0 ppb (32) N/A N/A N/A 0.96 ppb (11) N/A 14.0 μg/m3 (54) 110.0
 
Jan. 15, 2019, 10 p.m. 189.4 ppb (117) 151.0 ppb (110) N/A 38.0 ppb (35) N/A N/A N/A 1.08 ppb (12) N/A 13.0 μg/m3 (52) 117.0
 
Jan. 15, 2019, 9 p.m. 294.7 ppb (137) 240.1 ppb (127) N/A 55.0 ppb (51) N/A N/A N/A 1.34 ppb (15) N/A 34.0 μg/m3 (97) 137.0
 
Jan. 15, 2019, 8 p.m. 383.6 ppb (154) 323.7 ppb (143) N/A 60.0 ppb (56) N/A N/A N/A 1.56 ppb (17) N/A 42.0 μg/m3 (116) 154.0
 
Jan. 15, 2019, 7 p.m. 623.3 ppb (195) 539.9 ppb (181) N/A 83.0 ppb (81) N/A N/A N/A 2.32 ppb (26) N/A 67.0 μg/m3 (156) 195.0
 
Jan. 15, 2019, 6 p.m. 229.7 ppb (125) 190.6 ppb (117) N/A 39.0 ppb (36) N/A N/A N/A 1.48 ppb (16) N/A 22.0 μg/m3 (71) 125.0
 
Jan. 15, 2019, 5 p.m. 458.3 ppb (167) 398.4 ppb (156) N/A 60.0 ppb (56) N/A N/A N/A 2.33 ppb (26) N/A 48.0 μg/m3 (131) 167.0
 
Jan. 15, 2019, 4 p.m. 446.2 ppb (165) 388.6 ppb (155) N/A 58.0 ppb (54) N/A N/A N/A 1.89 ppb (21) N/A 43.0 μg/m3 (119) 165.0
 
Jan. 15, 2019, 3 p.m. 271.7 ppb (133) 224.5 ppb (124) N/A 47.0 ppb (44) N/A N/A N/A 1.2 ppb (13) N/A 26.0 μg/m3 (80) 133.0
 
Jan. 15, 2019, 2 p.m. 273.6 ppb (133) 233.4 ppb (125) N/A 40.0 ppb (37) N/A N/A N/A 1.36 ppb (15) N/A 27.0 μg/m3 (82) 133.0
 
Jan. 15, 2019, 1 p.m. 373.2 ppb (152) 330.8 ppb (144) N/A 42.0 ppb (39) N/A N/A N/A 1.74 ppb (19) N/A 38.0 μg/m3 (106) 152.0
 
Jan. 15, 2019, noon 286.1 ppb (136) 250.5 ppb (129) N/A 36.0 ppb (33) N/A N/A N/A 1.31 ppb (15) N/A 34.0 μg/m3 (97) 136.0
 
Jan. 15, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 31.0 μg/m3 (90) 90.0
 
Jan. 15, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 35.0 μg/m3 (99) 99.0
 
Jan. 15, 2019, 9 a.m. 180.5 ppb (115) 151.9 ppb (110) N/A 29.0 ppb (27) N/A N/A N/A 1.03 ppb (11) N/A 28.0 μg/m3 (84) 115.0
 
Jan. 15, 2019, 8 a.m. 156.8 ppb (111) 132.2 ppb (106) N/A 25.0 ppb (23) N/A N/A N/A 1.14 ppb (13) N/A 30.0 μg/m3 (88) 111.0
 
Jan. 15, 2019, 7 a.m. 129.0 ppb (105) 105.8 ppb (101) N/A 23.0 ppb (21) N/A N/A N/A 1.13 ppb (13) N/A 24.0 μg/m3 (76) 105.0
 
Jan. 15, 2019, 6 a.m. 124.8 ppb (105) 100.0 ppb (99) N/A 25.0 ppb (23) N/A N/A N/A 1.1 ppb (12) N/A 21.0 μg/m3 (69) 105.0
 
Jan. 15, 2019, 5 a.m. 143.4 ppb (108) 118.7 ppb (103) N/A 25.0 ppb (23) N/A N/A N/A 1.21 ppb (13) N/A 26.0 μg/m3 (80) 108.0
 
Jan. 15, 2019, 4 a.m. 126.1 ppb (105) 103.6 ppb (100) N/A 22.0 ppb (20) N/A N/A N/A 0.96 ppb (11) N/A 18.0 μg/m3 (63) 105.0
 
Jan. 15, 2019, 3 a.m. 153.8 ppb (110) 123.3 ppb (104) N/A 30.0 ppb (28) N/A N/A N/A 1.23 ppb (14) N/A 20.0 μg/m3 (67) 110.0
 
Jan. 15, 2019, 2 a.m. 165.8 ppb (112) 131.5 ppb (106) N/A 34.0 ppb (31) N/A N/A N/A 1.14 ppb (13) N/A 17.0 μg/m3 (61) 112.0
 
Jan. 15, 2019, 1 a.m. 124.5 ppb (105) 88.7 ppb (87) N/A 36.0 ppb (33) N/A N/A N/A 0.89 ppb (10) N/A 15.0 μg/m3 (56) 105.0
 
Jan. 15, 2019, midnight 128.8 ppb (105) 91.3 ppb (90) N/A 38.0 ppb (35) N/A N/A N/A 0.7 ppb (8) N/A 13.0 μg/m3 (52) 105.0
 
Jan. 14, 2019, 11 p.m. 97.2 ppb (96) 68.8 ppb (66) N/A 28.0 ppb (26) N/A N/A N/A 0.68 ppb (8) N/A 9.0 μg/m3 (38) 96.0
 
Jan. 14, 2019, 10 p.m. 121.0 ppb (104) 93.6 ppb (92) N/A 27.0 ppb (25) N/A N/A N/A 0.74 ppb (8) N/A 10.0 μg/m3 (42) 104.0
 
Jan. 14, 2019, 9 p.m. 125.4 ppb (105) 95.0 ppb (94) N/A 30.0 ppb (28) N/A N/A N/A 0.73 ppb (8) N/A 21.0 μg/m3 (69) 105.0
 
Jan. 14, 2019, 8 p.m. 119.2 ppb (104) 92.2 ppb (91) N/A 27.0 ppb (25) N/A N/A N/A 0.74 ppb (8) N/A 13.0 μg/m3 (52) 104.0
 
Jan. 14, 2019, 7 p.m. 35.5 ppb (33) 19.7 ppb (18) N/A 16.0 ppb (15) N/A N/A N/A 0.37 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 14, 2019, 6 p.m. 121.5 ppb (104) 93.1 ppb (92) N/A 28.0 ppb (26) N/A N/A N/A 0.65 ppb (7) N/A 12.0 μg/m3 (50) 104.0
 
Jan. 14, 2019, 5 p.m. 122.4 ppb (104) 95.1 ppb (94) N/A 27.0 ppb (25) N/A N/A N/A 0.61 ppb (7) N/A 12.0 μg/m3 (50) 104.0
 
Jan. 14, 2019, 4 p.m. 79.5 ppb (77) 52.1 ppb (48) N/A 27.0 ppb (25) N/A N/A N/A 0.62 ppb (7) N/A 13.0 μg/m3 (52) 77.0
 
Jan. 14, 2019, 3 p.m. 58.1 ppb (54) 32.6 ppb (30) N/A 26.0 ppb (24) N/A N/A N/A 0.45 ppb (5) N/A 12.0 μg/m3 (50) 54.0
 
Jan. 14, 2019, 2 p.m. 55.2 ppb (51) 28.3 ppb (26) N/A 27.0 ppb (25) N/A N/A N/A 0.45 ppb (5) N/A 6.0 μg/m3 (25) 51.0
 
Jan. 14, 2019, 1 p.m. 41.4 ppb (38) 19.1 ppb (18) N/A 22.0 ppb (20) N/A N/A N/A 0.36 ppb (4) N/A 8.0 μg/m3 (33) 38.0
 
Jan. 14, 2019, noon 43.9 ppb (41) 21.9 ppb (20) N/A 22.0 ppb (20) N/A N/A N/A 0.37 ppb (4) N/A 9.0 μg/m3 (38) 41.0
 
Jan. 14, 2019, 11 a.m. 60.0 ppb (56) 37.5 ppb (35) N/A 23.0 ppb (21) N/A N/A N/A 0.34 ppb (4) N/A 12.0 μg/m3 (50) 56.0
 
Jan. 14, 2019, 10 a.m. 34.2 ppb (32) 13.0 ppb (12) N/A 21.0 ppb (19) N/A N/A N/A 0.31 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 14, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (61) 61.0
 
Jan. 14, 2019, 8 a.m. 45.3 ppb (42) 23.3 ppb (22) N/A 22.0 ppb (20) N/A N/A N/A 0.48 ppb (5) N/A 19.0 μg/m3 (65) 65.0
 
Jan. 14, 2019, 7 a.m. 62.1 ppb (59) 37.9 ppb (35) N/A 24.0 ppb (22) N/A N/A N/A 0.65 ppb (7) N/A 17.0 μg/m3 (61) 61.0
 
Jan. 14, 2019, 6 a.m. 65.0 ppb (62) 39.2 ppb (36) N/A 26.0 ppb (24) N/A N/A N/A 0.83 ppb (9) N/A 24.0 μg/m3 (76) 76.0
 
Jan. 14, 2019, 5 a.m. 50.0 ppb (46) 24.1 ppb (22) N/A 26.0 ppb (24) N/A N/A N/A 0.64 ppb (7) N/A 21.0 μg/m3 (69) 69.0
 
Jan. 14, 2019, 4 a.m. 81.5 ppb (79) 52.3 ppb (48) N/A 29.0 ppb (27) N/A N/A N/A 0.88 ppb (10) N/A 25.0 μg/m3 (78) 79.0
 
Jan. 14, 2019, 3 a.m. 66.4 ppb (63) 36.5 ppb (34) N/A 30.0 ppb (28) N/A N/A N/A 0.78 ppb (9) N/A 19.0 μg/m3 (65) 65.0
 
Jan. 14, 2019, 2 a.m. 39.9 ppb (37) 13.8 ppb (13) N/A 26.0 ppb (24) N/A N/A N/A 0.51 ppb (6) N/A 15.0 μg/m3 (56) 56.0
 
Jan. 14, 2019, 1 a.m. 51.8 ppb (48) 24.6 ppb (23) N/A 27.0 ppb (25) N/A N/A N/A 0.63 ppb (7) N/A 13.0 μg/m3 (52) 52.0
 
Jan. 14, 2019, midnight 81.1 ppb (79) 52.2 ppb (48) N/A 29.0 ppb (27) N/A N/A N/A 0.65 ppb (7) N/A 11.0 μg/m3 (46) 79.0
 
Jan. 13, 2019, 11 p.m. 89.6 ppb (88) 61.1 ppb (58) N/A 29.0 ppb (27) N/A N/A N/A 0.78 ppb (9) N/A 11.0 μg/m3 (46) 88.0
 
Jan. 13, 2019, 10 p.m. 103.9 ppb (101) 73.0 ppb (70) N/A 31.0 ppb (29) N/A N/A N/A 0.84 ppb (9) N/A 13.0 μg/m3 (52) 101.0
 
Jan. 13, 2019, 9 p.m. 79.5 ppb (77) 52.7 ppb (49) N/A 27.0 ppb (25) N/A N/A N/A 0.58 ppb (6) N/A 6.0 μg/m3 (25) 77.0
 
Jan. 13, 2019, 8 p.m. 94.4 ppb (93) 67.4 ppb (64) N/A 27.0 ppb (25) N/A N/A N/A 0.62 ppb (7) N/A 9.0 μg/m3 (38) 93.0
 
Jan. 13, 2019, 7 p.m. 184.9 ppb (116) 146.1 ppb (109) N/A 39.0 ppb (36) N/A N/A N/A 0.87 ppb (10) N/A 21.0 μg/m3 (69) 116.0
 
Jan. 13, 2019, 6 p.m. 209.2 ppb (121) 168.5 ppb (113) N/A 41.0 ppb (38) N/A N/A N/A 1.26 ppb (14) N/A 25.0 μg/m3 (78) 121.0
 
Jan. 13, 2019, 5 p.m. 133.9 ppb (106) 105.5 ppb (101) N/A 28.0 ppb (26) N/A N/A N/A 1.21 ppb (13) N/A 18.0 μg/m3 (63) 106.0
 
Jan. 13, 2019, 4 p.m. 58.4 ppb (55) 34.7 ppb (32) N/A 24.0 ppb (22) N/A N/A N/A 0.65 ppb (7) N/A 11.0 μg/m3 (46) 55.0
 
Jan. 13, 2019, 3 p.m. 79.0 ppb (77) 53.0 ppb (49) N/A 26.0 ppb (24) N/A N/A N/A 0.64 ppb (7) N/A 13.0 μg/m3 (52) 77.0
 
Jan. 13, 2019, 2 p.m. 73.3 ppb (71) 49.2 ppb (46) N/A 24.0 ppb (22) N/A N/A N/A 0.56 ppb (6) N/A 15.0 μg/m3 (56) 71.0