AQSQID: 530330030

Site Name: Seattle-10th & Weller

Location: Seattle, WA

Reporting: True, Located: True

Current AQI: 102.0

Seattle WA, US: 47.597222, -122.319722

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Nov. 22, 2019, 8 p.m. 113.3 ppb (102) 90.8 ppb (89) N/A 23.0 ppb (21) N/A N/A N/A 0.83 ppb (9) N/A 19.0 μg/m3 (65) 102.0
 
Nov. 22, 2019, 7 p.m. 77.5 ppb (75) 56.8 ppb (53) N/A 21.0 ppb (19) N/A N/A N/A 0.61 ppb (7) N/A 14.0 μg/m3 (54) 75.0
 
Nov. 22, 2019, 6 p.m. 107.2 ppb (101) 85.6 ppb (84) N/A 22.0 ppb (20) N/A N/A N/A 0.71 ppb (8) N/A 13.0 μg/m3 (52) 101.0
 
Nov. 22, 2019, 5 p.m. 117.3 ppb (103) 94.2 ppb (93) N/A 23.0 ppb (21) N/A N/A N/A 0.68 ppb (8) N/A 17.0 μg/m3 (61) 103.0
 
Nov. 22, 2019, 4 p.m. 54.9 ppb (51) 38.7 ppb (36) N/A 16.0 ppb (15) N/A N/A N/A 0.5 ppb (6) N/A 10.0 μg/m3 (42) 51.0
 
Nov. 22, 2019, 3 p.m. 59.1 ppb (55) 41.9 ppb (39) N/A 17.0 ppb (16) N/A N/A N/A 0.49 ppb (5) N/A 15.0 μg/m3 (56) 56.0
 
Nov. 22, 2019, 2 p.m. 58.9 ppb (55) 40.8 ppb (38) N/A 18.0 ppb (17) N/A N/A N/A 0.51 ppb (6) N/A 17.0 μg/m3 (61) 61.0
 
Nov. 22, 2019, 1 p.m. 70.3 ppb (67) 53.7 ppb (50) N/A 17.0 ppb (16) N/A N/A N/A 0.54 ppb (6) N/A 12.0 μg/m3 (50) 67.0
 
Nov. 22, 2019, noon 90.2 ppb (89) 75.2 ppb (73) N/A 15.0 ppb (14) N/A N/A N/A 0.68 ppb (8) N/A 15.0 μg/m3 (56) 89.0
 
Nov. 22, 2019, 11 a.m. 95.4 ppb (94) 79.7 ppb (77) N/A 16.0 ppb (15) N/A N/A N/A 0.78 ppb (9) N/A 22.0 μg/m3 (71) 94.0
 
Nov. 22, 2019, 10 a.m. 101.5 ppb (100) 85.6 ppb (84) N/A 16.0 ppb (15) N/A N/A N/A 0.85 ppb (9) N/A 22.0 μg/m3 (71) 100.0
 
Nov. 22, 2019, 9 a.m. 137.3 ppb (107) 118.1 ppb (103) N/A 19.0 ppb (18) N/A N/A N/A 1.0 ppb (11) N/A 28.0 μg/m3 (84) 107.0
 
Nov. 22, 2019, 8 a.m. 96.0 ppb (95) 80.9 ppb (79) N/A 15.0 ppb (14) N/A N/A N/A 0.9 ppb (10) N/A 19.0 μg/m3 (65) 95.0
 
Nov. 22, 2019, 7 a.m. 110.3 ppb (102) 95.0 ppb (94) N/A 15.0 ppb (14) N/A N/A N/A 1.14 ppb (13) N/A 24.0 μg/m3 (76) 102.0
 
Nov. 22, 2019, 6 a.m. 154.8 ppb (110) 134.4 ppb (106) N/A 20.0 ppb (19) N/A N/A N/A 1.44 ppb (16) N/A 23.0 μg/m3 (73) 110.0
 
Nov. 22, 2019, 5 a.m. 119.2 ppb (104) 98.8 ppb (98) N/A 20.0 ppb (19) N/A N/A N/A 1.21 ppb (13) N/A 19.0 μg/m3 (65) 104.0
 
Nov. 22, 2019, 4 a.m. 101.9 ppb (100) 82.1 ppb (80) N/A 20.0 ppb (19) N/A N/A N/A 1.03 ppb (11) N/A 19.0 μg/m3 (65) 100.0
 
Nov. 22, 2019, 3 a.m. 108.3 ppb (101) 88.0 ppb (86) N/A 20.0 ppb (19) N/A N/A N/A 1.05 ppb (12) N/A 19.0 μg/m3 (65) 101.0
 
Nov. 22, 2019, 2 a.m. 81.6 ppb (79) 62.9 ppb (59) N/A 19.0 ppb (18) N/A N/A N/A 0.81 ppb (9) N/A 13.0 μg/m3 (52) 79.0
 
Nov. 22, 2019, 1 a.m. 85.7 ppb (84) 65.0 ppb (62) N/A 21.0 ppb (19) N/A N/A N/A 0.79 ppb (9) N/A 18.0 μg/m3 (63) 84.0
 
Nov. 22, 2019, midnight 84.6 ppb (83) 62.9 ppb (59) N/A 22.0 ppb (20) N/A N/A N/A 0.72 ppb (8) N/A 13.0 μg/m3 (52) 83.0
 
Nov. 21, 2019, 11 p.m. 126.8 ppb (105) 98.5 ppb (97) N/A 28.0 ppb (26) N/A N/A N/A 1.03 ppb (11) N/A 21.0 μg/m3 (69) 105.0
 
Nov. 21, 2019, 10 p.m. 156.5 ppb (111) 126.0 ppb (105) N/A 30.0 ppb (28) N/A N/A N/A 0.92 ppb (10) N/A 20.0 μg/m3 (67) 111.0
 
Nov. 21, 2019, 9 p.m. 166.4 ppb (113) 134.5 ppb (106) N/A 32.0 ppb (30) N/A N/A N/A 0.96 ppb (11) N/A 18.0 μg/m3 (63) 113.0
 
Nov. 21, 2019, 8 p.m. 140.7 ppb (108) 115.3 ppb (103) N/A 25.0 ppb (23) N/A N/A N/A 0.86 ppb (10) N/A 24.0 μg/m3 (76) 108.0
 
Nov. 21, 2019, 7 p.m. 153.8 ppb (110) 124.7 ppb (105) N/A 29.0 ppb (27) N/A N/A N/A 0.93 ppb (10) N/A 23.0 μg/m3 (73) 110.0
 
Nov. 21, 2019, 6 p.m. 116.2 ppb (103) 97.2 ppb (96) N/A 19.0 ppb (18) N/A N/A N/A 0.74 ppb (8) N/A 11.0 μg/m3 (46) 103.0
 
Nov. 21, 2019, 5 p.m. 57.0 ppb (53) 44.4 ppb (41) N/A 13.0 ppb (12) N/A N/A N/A 0.56 ppb (6) N/A 10.0 μg/m3 (42) 53.0
 
Nov. 21, 2019, 4 p.m. 50.0 ppb (46) 35.6 ppb (33) N/A 14.0 ppb (13) N/A N/A N/A 0.57 ppb (6) N/A 8.0 μg/m3 (33) 46.0
 
Nov. 21, 2019, 3 p.m. 39.5 ppb (37) 26.3 ppb (24) N/A 13.0 ppb (12) N/A N/A N/A 0.39 ppb (4) N/A 5.0 μg/m3 (21) 37.0
 
Nov. 21, 2019, 2 p.m. 24.9 ppb (23) 12.6 ppb (12) N/A 12.0 ppb (11) N/A N/A N/A 0.37 ppb (4) N/A 5.0 μg/m3 (21) 23.0
 
Nov. 21, 2019, 1 p.m. 20.2 ppb (19) 8.3 ppb (8) N/A 12.0 ppb (11) N/A N/A N/A 0.31 ppb (3) N/A 3.0 μg/m3 (12) 19.0
 
Nov. 21, 2019, noon 15.8 ppb (15) 5.6 ppb (5) N/A 10.0 ppb (9) N/A N/A N/A 0.25 ppb (3) N/A 2.0 μg/m3 (8) 15.0
 
Nov. 21, 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
 
Nov. 21, 2019, 10 a.m. 25.2 ppb (23) 12.0 ppb (11) N/A 13.0 ppb (12) N/A N/A N/A 0.42 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 21, 2019, 9 a.m. 29.5 ppb (27) 13.8 ppb (13) N/A 16.0 ppb (15) N/A N/A N/A 0.46 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 21, 2019, 8 a.m. 27.5 ppb (25) 7.1 ppb (7) N/A 20.0 ppb (19) N/A N/A N/A 0.41 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 21, 2019, 7 a.m. 26.7 ppb (25) 5.1 ppb (5) N/A 22.0 ppb (20) N/A N/A N/A 0.42 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 21, 2019, 6 a.m. 33.0 ppb (31) 11.8 ppb (11) N/A 21.0 ppb (19) N/A N/A N/A 0.5 ppb (6) N/A 13.0 μg/m3 (52) 52.0
 
Nov. 21, 2019, 5 a.m. 38.9 ppb (36) 14.6 ppb (14) N/A 24.0 ppb (22) N/A N/A N/A 0.55 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 21, 2019, 4 a.m. 35.3 ppb (33) 11.0 ppb (10) N/A 24.0 ppb (22) N/A N/A N/A 0.48 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 21, 2019, 3 a.m. 32.8 ppb (30) 7.1 ppb (7) N/A 26.0 ppb (24) N/A N/A N/A 0.47 ppb (5) N/A 16.0 μg/m3 (59) 59.0
 
Nov. 21, 2019, 2 a.m. 30.6 ppb (28) 6.2 ppb (6) N/A 24.0 ppb (22) N/A N/A N/A 0.46 ppb (5) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 21, 2019, 1 a.m. 35.8 ppb (33) 12.4 ppb (11) N/A 23.0 ppb (21) N/A N/A N/A 0.58 ppb (6) N/A 5.0 μg/m3 (21) 33.0
 
Nov. 21, 2019, midnight 24.6 ppb (23) 6.5 ppb (6) N/A 18.0 ppb (17) N/A N/A N/A 0.37 ppb (4) N/A 4.0 μg/m3 (17) 23.0
 
Nov. 20, 2019, 11 p.m. 16.6 ppb (15) 5.4 ppb (5) N/A 11.0 ppb (10) N/A N/A N/A 0.29 ppb (3) N/A N/A 15.0
 
Nov. 20, 2019, 10 p.m. 15.8 ppb (15) 7.1 ppb (7) N/A 9.0 ppb (8) N/A N/A N/A 0.28 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Nov. 20, 2019, 9 p.m. 16.4 ppb (15) 8.5 ppb (8) N/A 8.0 ppb (7) N/A N/A N/A 0.33 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
Nov. 20, 2019, 8 p.m. 19.8 ppb (18) 10.8 ppb (10) N/A 9.0 ppb (8) N/A N/A N/A 0.31 ppb (3) N/A 4.0 μg/m3 (17) 18.0
 
Nov. 20, 2019, 7 p.m. 19.7 ppb (18) 10.3 ppb (10) N/A 9.0 ppb (8) N/A N/A N/A 0.31 ppb (3) N/A 3.0 μg/m3 (12) 18.0
 
Nov. 20, 2019, 6 p.m. 20.5 ppb (19) 11.3 ppb (10) N/A 9.0 ppb (8) N/A N/A N/A 0.31 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 20, 2019, 5 p.m. 19.5 ppb (18) 10.3 ppb (10) N/A 9.0 ppb (8) N/A N/A N/A 0.29 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Nov. 20, 2019, 4 p.m. 26.0 ppb (24) 13.7 ppb (13) N/A 12.0 ppb (11) N/A N/A N/A 0.38 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 20, 2019, 3 p.m. 22.2 ppb (21) 9.1 ppb (8) N/A 13.0 ppb (12) N/A N/A N/A 0.3 ppb (3) N/A 3.0 μg/m3 (12) 21.0
 
Nov. 20, 2019, 2 p.m. 14.0 ppb (13) 3.4 ppb (3) N/A 11.0 ppb (10) N/A N/A N/A 0.26 ppb (3) N/A 3.0 μg/m3 (12) 13.0
 
Nov. 20, 2019, 1 p.m. 13.4 ppb (12) 3.9 ppb (4) N/A 10.0 ppb (9) N/A N/A N/A 0.26 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 20, 2019, noon 8.7 ppb (8) 1.1 ppb (1) N/A 8.0 ppb (7) N/A N/A N/A 0.23 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 20, 2019, 11 a.m. 10.1 ppb (9) 1.6 ppb (1) N/A 8.0 ppb (7) N/A N/A N/A 0.23 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Nov. 20, 2019, 10 a.m. 10.9 ppb (10) 1.1 ppb (1) N/A 10.0 ppb (9) N/A N/A N/A 0.23 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 20, 2019, 9 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
 
Nov. 20, 2019, 8 a.m. 14.2 ppb (13) 0.9 ppb (1) N/A 13.0 ppb (12) N/A N/A N/A 0.3 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 20, 2019, 7 a.m. 22.9 ppb (21) 5.2 ppb (5) N/A 18.0 ppb (17) N/A N/A N/A 0.37 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 20, 2019, 6 a.m. 17.9 ppb (17) 2.8 ppb (3) N/A 15.0 ppb (14) N/A N/A N/A 0.33 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 20, 2019, 5 a.m. 13.7 ppb (13) 1.4 ppb (1) N/A 12.0 ppb (11) N/A N/A N/A 0.29 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 20, 2019, 4 a.m. 13.7 ppb (13) 2.3 ppb (2) N/A 11.0 ppb (10) N/A N/A N/A 0.28 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 20, 2019, 3 a.m. 15.6 ppb (14) 2.7 ppb (3) N/A 13.0 ppb (12) N/A N/A N/A 0.32 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 20, 2019, 2 a.m. 12.5 ppb (12) 1.9 ppb (2) N/A 11.0 ppb (10) N/A N/A N/A 0.29 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 20, 2019, 1 a.m. 12.4 ppb (11) 2.6 ppb (2) N/A 10.0 ppb (9) N/A N/A N/A 0.28 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Nov. 20, 2019, midnight 26.4 ppb (24) 10.1 ppb (9) N/A 16.0 ppb (15) N/A N/A N/A 0.36 ppb (4) N/A 4.0 μg/m3 (17) 24.0
 
Nov. 19, 2019, 11 p.m. 23.0 ppb (21) 7.9 ppb (7) N/A 15.0 ppb (14) N/A N/A N/A 0.32 ppb (4) N/A 4.0 μg/m3 (17) 21.0
 
Nov. 19, 2019, 10 p.m. 31.2 ppb (29) 14.0 ppb (13) N/A 17.0 ppb (16) N/A N/A N/A 0.33 ppb (4) N/A 6.0 μg/m3 (25) 29.0
 
Nov. 19, 2019, 9 p.m. 35.6 ppb (33) 16.2 ppb (15) N/A 19.0 ppb (18) N/A N/A N/A 0.34 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 19, 2019, 8 p.m. 67.0 ppb (64) 27.1 ppb (25) N/A 40.0 ppb (37) N/A N/A N/A 0.29 ppb (3) N/A 3.0 μg/m3 (12) 64.0
 
Nov. 19, 2019, 7 p.m. 27.6 ppb (26) 13.1 ppb (12) N/A 14.0 ppb (13) N/A N/A N/A 0.26 ppb (3) N/A 1.0 μg/m3 (4) 26.0
 
Nov. 19, 2019, 6 p.m. 25.8 ppb (24) 9.2 ppb (9) N/A 17.0 ppb (16) N/A N/A N/A 0.28 ppb (3) N/A 3.0 μg/m3 (12) 24.0
 
Nov. 19, 2019, 5 p.m. 30.0 ppb (28) 10.3 ppb (10) N/A 20.0 ppb (19) N/A N/A N/A 0.29 ppb (3) N/A 4.0 μg/m3 (17) 28.0
 
Nov. 19, 2019, 4 p.m. 32.5 ppb (30) 10.3 ppb (10) N/A 22.0 ppb (20) N/A N/A N/A 0.3 ppb (3) N/A 5.0 μg/m3 (21) 30.0
 
Nov. 19, 2019, 3 p.m. 39.7 ppb (37) 18.5 ppb (17) N/A 21.0 ppb (19) N/A N/A N/A 0.32 ppb (4) N/A 6.0 μg/m3 (25) 37.0
 
Nov. 19, 2019, 2 p.m. 11.9 ppb (11) 2.7 ppb (3) N/A 9.0 ppb (8) N/A N/A N/A 0.23 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Nov. 19, 2019, 1 p.m. 47.1 ppb (44) 30.1 ppb (28) N/A 17.0 ppb (16) N/A N/A N/A 0.45 ppb (5) N/A 5.0 μg/m3 (21) 44.0
 
Nov. 19, 2019, noon 13.8 ppb (13) 3.6 ppb (3) N/A 10.0 ppb (9) N/A N/A N/A 0.22 ppb (2) N/A 3.0 μg/m3 (12) 13.0
 
Nov. 19, 2019, 11 a.m. 28.3 ppb (26) 9.7 ppb (9) N/A 19.0 ppb (18) N/A N/A N/A 0.21 ppb (2) N/A 4.0 μg/m3 (17) 26.0
 
Nov. 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
 
Nov. 19, 2019, 9 a.m. 29.3 ppb (27) 7.6 ppb (7) N/A 22.0 ppb (20) N/A N/A N/A 0.24 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 19, 2019, 8 a.m. 19.2 ppb (18) 4.5 ppb (4) N/A 15.0 ppb (14) N/A N/A N/A 0.26 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 19, 2019, 7 a.m. 16.4 ppb (15) 3.3 ppb (3) N/A 13.0 ppb (12) N/A N/A N/A 0.32 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
Nov. 19, 2019, 6 a.m. 38.2 ppb (35) 16.1 ppb (15) N/A 22.0 ppb (20) N/A N/A N/A 0.42 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 19, 2019, 5 a.m. 51.6 ppb (48) 30.6 ppb (28) N/A 21.0 ppb (19) N/A N/A N/A 0.51 ppb (6) N/A 9.0 μg/m3 (38) 48.0
 
Nov. 19, 2019, 4 a.m. 37.1 ppb (34) 15.4 ppb (14) N/A 22.0 ppb (20) N/A N/A N/A 0.46 ppb (5) N/A 7.0 μg/m3 (29) 34.0
 
Nov. 19, 2019, 3 a.m. 63.3 ppb (60) 37.5 ppb (35) N/A 26.0 ppb (24) N/A N/A N/A 0.6 ppb (7) N/A 9.0 μg/m3 (38) 60.0
 
Nov. 19, 2019, 2 a.m. 53.3 ppb (49) 31.8 ppb (29) N/A 22.0 ppb (20) N/A N/A N/A 0.56 ppb (6) N/A 8.0 μg/m3 (33) 49.0
 
Nov. 19, 2019, 1 a.m. 28.8 ppb (27) 7.6 ppb (7) N/A 21.0 ppb (19) N/A N/A N/A 0.44 ppb (5) N/A 2.0 μg/m3 (8) 27.0
 
Nov. 19, 2019, midnight 30.8 ppb (29) 11.5 ppb (11) N/A 19.0 ppb (18) N/A N/A N/A 0.47 ppb (5) N/A 3.0 μg/m3 (12) 29.0
 
Nov. 18, 2019, 11 p.m. 22.0 ppb (20) 6.5 ppb (6) N/A 16.0 ppb (15) N/A N/A N/A 0.33 ppb (4) N/A 2.0 μg/m3 (8) 20.0
 
Nov. 18, 2019, 10 p.m. 17.7 ppb (16) 5.6 ppb (5) N/A 12.0 ppb (11) N/A N/A N/A 0.27 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Nov. 18, 2019, 9 p.m. 32.1 ppb (30) 15.0 ppb (14) N/A 17.0 ppb (16) N/A N/A N/A 0.36 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 18, 2019, 8 p.m. 48.5 ppb (45) 29.8 ppb (28) N/A 19.0 ppb (18) N/A N/A N/A 0.47 ppb (5) N/A 8.0 μg/m3 (33) 45.0
 
Nov. 18, 2019, 7 p.m. 70.3 ppb (67) 49.2 ppb (46) N/A 21.0 ppb (19) N/A N/A N/A 0.63 ppb (7) N/A 7.0 μg/m3 (29) 67.0
 
Nov. 18, 2019, 6 p.m. 105.1 ppb (101) 78.1 ppb (76) N/A 27.0 ppb (25) N/A N/A N/A 0.61 ppb (7) N/A 10.0 μg/m3 (42) 101.0
 
Nov. 18, 2019, 5 p.m. 54.0 ppb (50) 31.7 ppb (29) N/A 22.0 ppb (20) N/A N/A N/A 0.43 ppb (5) N/A 2.0 μg/m3 (8) 50.0
 
Nov. 18, 2019, 4 p.m. 26.6 ppb (25) 11.4 ppb (11) N/A 15.0 ppb (14) N/A N/A N/A 0.34 ppb (4) N/A 2.0 μg/m3 (8) 25.0
 
Nov. 18, 2019, 3 p.m. 16.7 ppb (15) 4.9 ppb (5) N/A 12.0 ppb (11) N/A N/A N/A 0.25 ppb (3) N/A 1.0 μg/m3 (4) 15.0
 
Nov. 18, 2019, 2 p.m. 10.3 ppb (10) 1.4 ppb (1) N/A 9.0 ppb (8) N/A N/A N/A 0.2 ppb (2) N/A 1.0 μg/m3 (4) 10.0
 
Nov. 18, 2019, 1 p.m. 11.3 ppb (10) 2.8 ppb (3) N/A 9.0 ppb (8) N/A N/A N/A 0.2 ppb (2) N/A 1.0 μg/m3 (4) 10.0
 
Nov. 18, 2019, noon 7.2 ppb (7) 0.6 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A 0.19 ppb (2) N/A 1.0 μg/m3 (4) 7.0
 
Nov. 18, 2019, 11 a.m. 6.3 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A 0.17 ppb (2) N/A 2.0 μg/m3 (8) 8.0
 
Nov. 18, 2019, 10 a.m. 5.9 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.16 ppb (2) N/A 2.0 μg/m3 (8) 8.0
 
Nov. 18, 2019, 9 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
 
Nov. 18, 2019, 8 a.m. 6.3 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A 0.18 ppb (2) N/A 1.0 μg/m3 (4) 6.0
 
Nov. 18, 2019, 7 a.m. 7.0 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A 0.19 ppb (2) N/A 2.0 μg/m3 (8) 8.0
 
Nov. 18, 2019, 6 a.m. 6.5 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.19 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Nov. 18, 2019, 5 a.m. 8.1 ppb (8) 1.3 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A 0.23 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Nov. 18, 2019, 4 a.m. 32.5 ppb (30) 12.8 ppb (12) N/A 20.0 ppb (19) N/A N/A N/A 0.4 ppb (4) N/A 3.0 μg/m3 (12) 30.0
 
Nov. 18, 2019, 3 a.m. 46.4 ppb (43) 22.3 ppb (21) N/A 24.0 ppb (22) N/A N/A N/A 0.54 ppb (6) N/A 6.0 μg/m3 (25) 43.0
 
Nov. 18, 2019, 2 a.m. 50.4 ppb (47) 25.9 ppb (24) N/A 24.0 ppb (22) N/A N/A N/A 0.62 ppb (7) N/A 7.0 μg/m3 (29) 47.0
 
Nov. 18, 2019, 1 a.m. 46.4 ppb (43) 24.0 ppb (22) N/A 22.0 ppb (20) N/A N/A N/A 0.56 ppb (6) N/A 9.0 μg/m3 (38) 43.0
 
Nov. 18, 2019, midnight 59.3 ppb (56) 35.2 ppb (33) N/A 24.0 ppb (22) N/A N/A N/A 0.51 ppb (6) N/A 5.0 μg/m3 (21) 56.0
 
Nov. 17, 2019, 11 p.m. 42.2 ppb (39) 21.6 ppb (20) N/A 21.0 ppb (19) N/A N/A N/A 0.42 ppb (5) N/A 5.0 μg/m3 (21) 39.0
 
Nov. 17, 2019, 10 p.m. 32.9 ppb (30) 15.8 ppb (15) N/A 17.0 ppb (16) N/A N/A N/A 0.39 ppb (4) N/A 4.0 μg/m3 (17) 30.0
 
Nov. 17, 2019, 9 p.m. 24.9 ppb (23) 11.0 ppb (10) N/A 14.0 ppb (13) N/A N/A N/A 0.36 ppb (4) N/A 4.0 μg/m3 (17) 23.0
 
Nov. 17, 2019, 8 p.m. 20.5 ppb (19) 9.7 ppb (9) N/A 11.0 ppb (10) N/A N/A N/A 0.37 ppb (4) N/A 0.0 μg/m3 (0) 19.0
 
Nov. 17, 2019, 7 p.m. 17.6 ppb (16) 8.7 ppb (8) N/A 9.0 ppb (8) N/A N/A N/A 0.36 ppb (4) N/A 0.0 μg/m3 (0) 16.0
 
Nov. 17, 2019, 6 p.m. 11.4 ppb (11) 4.4 ppb (4) N/A 7.0 ppb (6) N/A N/A N/A 0.27 ppb (3) N/A 2.0 μg/m3 (8) 11.0
 
Nov. 17, 2019, 5 p.m. 16.7 ppb (15) 6.1 ppb (6) N/A 11.0 ppb (10) N/A N/A N/A 0.33 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 17, 2019, 4 p.m. 33.3 ppb (31) 16.2 ppb (15) N/A 17.0 ppb (16) N/A N/A N/A 0.45 ppb (5) N/A 7.0 μg/m3 (29) 31.0
 
Nov. 17, 2019, 3 p.m. 18.7 ppb (17) 5.1 ppb (5) N/A 14.0 ppb (13) N/A N/A N/A 0.29 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 17, 2019, 2 p.m. 16.1 ppb (15) 1.9 ppb (2) N/A 14.0 ppb (13) N/A N/A N/A 0.29 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 17, 2019, 1 p.m. 16.1 ppb (15) 2.9 ppb (3) N/A 13.0 ppb (12) N/A N/A N/A 0.32 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 17, 2019, noon 13.1 ppb (12) 0.8 ppb (1) N/A 12.0 ppb (11) N/A N/A N/A 0.27 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Nov. 17, 2019, 11 a.m. 11.9 ppb (11) 0.3 ppb (0) N/A 12.0 ppb (11) N/A N/A N/A 0.28 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 17, 2019, 10 a.m. 12.2 ppb (11) 1.9 ppb (2) N/A 10.0 ppb (9) N/A N/A N/A 0.33 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 17, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Nov. 17, 2019, 8 a.m. 23.4 ppb (22) 9.4 ppb (9) N/A 14.0 ppb (13) N/A N/A N/A 0.45 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 17, 2019, 7 a.m. 25.4 ppb (24) 10.1 ppb (9) N/A 15.0 ppb (14) N/A N/A N/A 0.46 ppb (5) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 17, 2019, 6 a.m. 27.4 ppb (25) 13.4 ppb (12) N/A 14.0 ppb (13) N/A N/A N/A 0.48 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 17, 2019, 5 a.m. 45.3 ppb (42) 26.2 ppb (24) N/A 19.0 ppb (18) N/A N/A N/A 0.67 ppb (7) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 17, 2019, 4 a.m. 52.5 ppb (49) 31.7 ppb (29) N/A 21.0 ppb (19) N/A N/A N/A 0.77 ppb (9) N/A 11.0 μg/m3 (46) 49.0
 
Nov. 17, 2019, 3 a.m. 40.6 ppb (38) 22.1 ppb (20) N/A 19.0 ppb (18) N/A N/A N/A 0.67 ppb (7) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 17, 2019, 2 a.m. 34.9 ppb (32) 13.7 ppb (13) N/A 21.0 ppb (19) N/A N/A N/A 0.56 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 17, 2019, 1 a.m. 46.3 ppb (43) 23.9 ppb (22) N/A 22.0 ppb (20) N/A N/A N/A 0.66 ppb (7) N/A 10.0 μg/m3 (42) 43.0
 
Nov. 17, 2019, midnight 28.5 ppb (26) 7.6 ppb (7) N/A 21.0 ppb (19) N/A N/A N/A 0.46 ppb (5) N/A 6.0 μg/m3 (25) 26.0
 
Nov. 16, 2019, 11 p.m. 41.0 ppb (38) 17.1 ppb (16) N/A 24.0 ppb (22) N/A N/A N/A 0.55 ppb (6) N/A 6.0 μg/m3 (25) 38.0
 
Nov. 16, 2019, 10 p.m. 44.5 ppb (41) 25.2 ppb (23) N/A 19.0 ppb (18) N/A N/A N/A 0.69 ppb (8) N/A 7.0 μg/m3 (29) 41.0
 
Nov. 16, 2019, 9 p.m. 48.1 ppb (45) 26.8 ppb (25) N/A 21.0 ppb (19) N/A N/A N/A 0.58 ppb (6) N/A 7.0 μg/m3 (29) 45.0
 
Nov. 16, 2019, 8 p.m. 38.8 ppb (36) 21.8 ppb (20) N/A 17.0 ppb (16) N/A N/A N/A 0.52 ppb (6) N/A 3.0 μg/m3 (12) 36.0
 
Nov. 16, 2019, 7 p.m. 14.7 ppb (14) 4.9 ppb (5) N/A 10.0 ppb (9) N/A N/A N/A 0.27 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 16, 2019, 6 p.m. 18.4 ppb (17) 7.0 ppb (6) N/A 11.0 ppb (10) N/A N/A N/A 0.32 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
Nov. 16, 2019, 5 p.m. 44.0 ppb (41) 24.1 ppb (22) N/A 20.0 ppb (19) N/A N/A N/A 0.53 ppb (6) N/A 4.0 μg/m3 (17) 41.0
 
Nov. 16, 2019, 4 p.m. 41.5 ppb (38) 20.4 ppb (19) N/A 21.0 ppb (19) N/A N/A N/A 0.48 ppb (5) N/A 5.0 μg/m3 (21) 38.0
 
Nov. 16, 2019, 3 p.m. 27.4 ppb (25) 8.5 ppb (8) N/A 19.0 ppb (18) N/A N/A N/A 0.41 ppb (5) N/A 5.0 μg/m3 (21) 25.0
 
Nov. 16, 2019, 2 p.m. 27.0 ppb (25) 11.5 ppb (11) N/A 15.0 ppb (14) N/A N/A N/A 0.37 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 16, 2019, 1 p.m. 11.2 ppb (10) 1.4 ppb (1) N/A 10.0 ppb (9) N/A N/A N/A 0.25 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Nov. 16, 2019, noon 14.9 ppb (14) 2.5 ppb (2) N/A 12.0 ppb (11) N/A N/A N/A 0.28 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 16, 2019, 11 a.m. 15.3 ppb (14) 2.7 ppb (3) N/A 13.0 ppb (12) N/A N/A N/A 0.28 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 16, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Nov. 16, 2019, 9 a.m. 10.1 ppb (9) 0.2 ppb (0) N/A 10.0 ppb (9) N/A N/A N/A 0.24 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 16, 2019, 8 a.m. 14.0 ppb (13) 0.6 ppb (1) N/A 13.0 ppb (12) N/A N/A N/A 0.29 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 16, 2019, 7 a.m. 26.1 ppb (24) 7.5 ppb (7) N/A 19.0 ppb (18) N/A N/A N/A 0.37 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 16, 2019, 6 a.m. 37.3 ppb (35) 15.0 ppb (14) N/A 22.0 ppb (20) N/A N/A N/A 0.49 ppb (5) N/A 6.0 μg/m3 (25) 35.0
 
Nov. 16, 2019, 5 a.m. 42.5 ppb (39) 17.2 ppb (16) N/A 25.0 ppb (23) N/A N/A N/A 0.44 ppb (5) N/A 7.0 μg/m3 (29) 39.0
 
Nov. 16, 2019, 4 a.m. 42.4 ppb (39) 19.8 ppb (18) N/A 23.0 ppb (21) N/A N/A N/A 0.44 ppb (5) N/A 7.0 μg/m3 (29) 39.0
 
Nov. 16, 2019, 3 a.m. 39.6 ppb (37) 17.9 ppb (17) N/A 22.0 ppb (20) N/A N/A N/A 0.49 ppb (5) N/A 6.0 μg/m3 (25) 37.0
 
Nov. 16, 2019, 2 a.m. 41.6 ppb (39) 18.9 ppb (18) N/A 23.0 ppb (21) N/A N/A N/A 0.41 ppb (5) N/A 7.0 μg/m3 (29) 39.0
 
Nov. 16, 2019, 1 a.m. 40.8 ppb (38) 17.3 ppb (16) N/A 23.0 ppb (21) N/A N/A N/A 0.43 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 16, 2019, midnight 51.3 ppb (48) 23.3 ppb (22) N/A 28.0 ppb (26) N/A N/A N/A 0.46 ppb (5) N/A 3.0 μg/m3 (12) 48.0
 
Nov. 15, 2019, 11 p.m. 46.4 ppb (43) 25.0 ppb (23) N/A 21.0 ppb (19) N/A N/A N/A 0.49 ppb (5) N/A 4.0 μg/m3 (17) 43.0
 
Nov. 15, 2019, 10 p.m. 59.2 ppb (56) 32.0 ppb (30) N/A 27.0 ppb (25) N/A N/A N/A 0.54 ppb (6) N/A 6.0 μg/m3 (25) 56.0
 
Nov. 15, 2019, 9 p.m. 52.5 ppb (49) 32.8 ppb (30) N/A 20.0 ppb (19) N/A N/A N/A 0.53 ppb (6) N/A 6.0 μg/m3 (25) 49.0