ID: 2379

AQSQID: 530330030

Site Name: Seattle-10th & Weller

Added: April 21, 2020, 6:24 p.m.

Updated: July 10, 2020, 8:38 p.m.

Location: Seattle (Little Saigon), WA

Reporting: True, Located: True

Current AQI: 36.0

Seattle (Little Saigon) WA, US: 47.597222, -122.319722

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 10, 2020, 7 p.m. 39.3 ppb (36) 25.5 ppb (24) N/A 14.0 ppb (13) N/A N/A N/A 0.36 ppb (4) N/A 5.0 μg/m3 (21) 36.0
 
July 10, 2020, 6 p.m. 44.1 ppb (41) 29.9 ppb (28) N/A 14.0 ppb (13) N/A N/A N/A 0.34 ppb (4) N/A 5.0 μg/m3 (21) 41.0
 
July 10, 2020, 5 p.m. 40.8 ppb (38) 28.1 ppb (26) N/A 13.0 ppb (12) N/A N/A N/A 0.35 ppb (4) N/A 4.0 μg/m3 (17) 38.0
 
July 10, 2020, 4 p.m. 48.2 ppb (45) 30.4 ppb (28) N/A 18.0 ppb (17) N/A N/A N/A 0.3 ppb (3) N/A 5.0 μg/m3 (21) 45.0
 
July 10, 2020, 3 p.m. 53.5 ppb (50) 36.6 ppb (34) N/A 17.0 ppb (16) N/A N/A N/A 0.38 ppb (4) N/A 8.0 μg/m3 (33) 50.0
 
July 10, 2020, 2 p.m. 57.8 ppb (54) 35.9 ppb (33) N/A 22.0 ppb (20) N/A N/A N/A 0.36 ppb (4) N/A 7.0 μg/m3 (29) 54.0
 
July 10, 2020, 1 p.m. 58.0 ppb (54) 38.9 ppb (36) N/A 19.0 ppb (18) N/A N/A N/A 0.45 ppb (5) N/A 7.0 μg/m3 (29) 54.0
 
July 10, 2020, noon 72.2 ppb (69) 50.2 ppb (46) N/A 22.0 ppb (20) N/A N/A N/A 0.65 ppb (7) N/A 7.0 μg/m3 (29) 69.0
 
July 10, 2020, 11 a.m. 38.1 ppb (35) 21.3 ppb (20) N/A 17.0 ppb (16) N/A N/A N/A 0.33 ppb (4) N/A 6.0 μg/m3 (25) 35.0
 
July 10, 2020, 10 a.m. 30.9 ppb (29) 12.8 ppb (12) N/A 18.0 ppb (17) N/A N/A N/A 0.23 ppb (3) N/A 6.0 μg/m3 (25) 29.0
 
July 10, 2020, 9 a.m. 5.8 ppb (5) 1.1 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.13 ppb (1) N/A 5.0 μg/m3 (21) 21.0
 
July 10, 2020, 8 a.m. 4.2 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.12 ppb (1) N/A 2.0 μg/m3 (8) 8.0
 
July 10, 2020, 7 a.m. 5.3 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.11 ppb (1) N/A 2.0 μg/m3 (8) 8.0
 
July 10, 2020, 6 a.m. 4.7 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.11 ppb (1) N/A 4.0 μg/m3 (17) 17.0
 
July 10, 2020, 5 a.m. 5.6 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.14 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
July 10, 2020, 4 a.m. 6.3 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.16 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
July 10, 2020, 3 a.m. 11.1 ppb (10) 3.2 ppb (3) N/A 8.0 ppb (7) N/A N/A N/A 0.24 ppb (3) N/A 0.0 μg/m3 (0) 10.0
 
July 10, 2020, 2 a.m. 20.8 ppb (19) 11.1 ppb (10) N/A 10.0 ppb (9) N/A N/A N/A 0.48 ppb (5) N/A 3.0 μg/m3 (12) 19.0
 
July 10, 2020, 1 a.m. 36.5 ppb (34) 23.4 ppb (22) N/A 13.0 ppb (12) N/A N/A N/A 0.55 ppb (6) N/A 7.0 μg/m3 (29) 34.0
 
July 10, 2020, midnight 38.8 ppb (36) 25.8 ppb (24) N/A 13.0 ppb (12) N/A N/A N/A 0.54 ppb (6) N/A 7.0 μg/m3 (29) 36.0
 
July 9, 2020, 11 p.m. 34.0 ppb (31) 23.1 ppb (21) N/A 11.0 ppb (10) N/A N/A N/A 0.4 ppb (4) N/A 6.0 μg/m3 (25) 31.0
 
July 9, 2020, 10 p.m. 32.5 ppb (30) 22.6 ppb (21) N/A 10.0 ppb (9) N/A N/A N/A 0.42 ppb (5) N/A N/A 30.0
 
July 9, 2020, 9 p.m. 39.2 ppb (36) 26.8 ppb (25) N/A 12.0 ppb (11) N/A N/A N/A 0.4 ppb (4) N/A 5.0 μg/m3 (21) 36.0
 
July 9, 2020, 8 p.m. 34.8 ppb (32) 24.3 ppb (23) N/A 11.0 ppb (10) N/A N/A N/A 0.35 ppb (4) N/A 5.0 μg/m3 (21) 32.0
 
July 9, 2020, 7 p.m. 35.1 ppb (32) 22.8 ppb (21) N/A 12.0 ppb (11) N/A N/A N/A 0.3 ppb (3) N/A 5.0 μg/m3 (21) 32.0
 
July 9, 2020, 6 p.m. 43.8 ppb (41) 28.9 ppb (27) N/A 15.0 ppb (14) N/A N/A N/A 0.34 ppb (4) N/A 6.0 μg/m3 (25) 41.0
 
July 9, 2020, 5 p.m. 53.4 ppb (49) 38.6 ppb (36) N/A 15.0 ppb (14) N/A N/A N/A 0.34 ppb (4) N/A 5.0 μg/m3 (21) 49.0
 
July 9, 2020, 4 p.m. 59.3 ppb (56) 42.6 ppb (39) N/A 17.0 ppb (16) N/A N/A N/A 0.39 ppb (4) N/A 6.0 μg/m3 (25) 56.0
 
July 9, 2020, 3 p.m. 69.7 ppb (67) 50.0 ppb (46) N/A 20.0 ppb (19) N/A N/A N/A 0.38 ppb (4) N/A 8.0 μg/m3 (33) 67.0
 
July 9, 2020, 2 p.m. 77.2 ppb (75) 52.1 ppb (48) N/A 25.0 ppb (23) N/A N/A N/A 0.38 ppb (4) N/A 5.0 μg/m3 (21) 75.0
 
July 9, 2020, 1 p.m. 121.3 ppb (104) 94.9 ppb (94) N/A 26.0 ppb (24) N/A N/A N/A 0.53 ppb (6) N/A 6.0 μg/m3 (25) 104.0
 
July 9, 2020, noon 38.2 ppb (35) 23.8 ppb (22) N/A 14.0 ppb (13) N/A N/A N/A 0.51 ppb (6) N/A 5.0 μg/m3 (21) 35.0
 
July 9, 2020, 11 a.m. 22.6 ppb (21) 13.0 ppb (12) N/A 10.0 ppb (9) N/A N/A N/A 0.3 ppb (3) N/A 4.0 μg/m3 (17) 21.0
 
July 9, 2020, 10 a.m. 3.3 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.09 ppb (1) N/A 1.0 μg/m3 (4) 4.0
 
July 9, 2020, 9 a.m. 3.7 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.11 ppb (1) N/A 0.0 μg/m3 (0) 3.0
 
July 9, 2020, 8 a.m. 3.8 ppb (4) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.09 ppb (1) N/A -2.0 μg/m3 (0) 4.0
 
July 9, 2020, 7 a.m. 4.3 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.09 ppb (1) N/A 0.0 μg/m3 (0) 4.0
 
July 9, 2020, 6 a.m. 5.5 ppb (5) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.11 ppb (1) N/A 0.0 μg/m3 (0) 5.0
 
July 9, 2020, 5 a.m. 10.5 ppb (10) 2.0 ppb (2) N/A 8.0 ppb (7) N/A N/A N/A 0.17 ppb (2) N/A 0.0 μg/m3 (0) 10.0
 
July 9, 2020, 4 a.m. 10.4 ppb (10) 1.3 ppb (1) N/A 9.0 ppb (8) N/A N/A N/A 0.16 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
July 9, 2020, 3 a.m. 28.5 ppb (26) 12.6 ppb (12) N/A 16.0 ppb (15) N/A N/A N/A 0.42 ppb (5) N/A 8.0 μg/m3 (33) 33.0
 
July 9, 2020, 2 a.m. 32.4 ppb (30) 17.0 ppb (16) N/A 15.0 ppb (14) N/A N/A N/A 0.44 ppb (5) N/A 4.0 μg/m3 (17) 30.0
 
July 9, 2020, 1 a.m. 38.0 ppb (35) 21.1 ppb (20) N/A 17.0 ppb (16) N/A N/A N/A 0.52 ppb (6) N/A 7.0 μg/m3 (29) 35.0
 
July 9, 2020, midnight 40.9 ppb (38) 24.9 ppb (23) N/A 16.0 ppb (15) N/A N/A N/A 0.57 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
July 8, 2020, 11 p.m. 30.6 ppb (28) 18.7 ppb (17) N/A 12.0 ppb (11) N/A N/A N/A 0.41 ppb (5) N/A 3.0 μg/m3 (12) 28.0
 
July 8, 2020, 10 p.m. 36.6 ppb (34) 22.4 ppb (21) N/A 14.0 ppb (13) N/A N/A N/A 0.48 ppb (5) N/A 3.0 μg/m3 (12) 34.0
 
July 8, 2020, 9 p.m. 38.4 ppb (36) 25.0 ppb (23) N/A 13.0 ppb (12) N/A N/A N/A 0.44 ppb (5) N/A 7.0 μg/m3 (29) 36.0
 
July 8, 2020, 8 p.m. 49.2 ppb (46) 33.3 ppb (31) N/A 16.0 ppb (15) N/A N/A N/A 0.52 ppb (6) N/A 10.0 μg/m3 (42) 46.0
 
July 8, 2020, 7 p.m. 46.7 ppb (43) 28.6 ppb (26) N/A 18.0 ppb (17) N/A N/A N/A 0.46 ppb (5) N/A 5.0 μg/m3 (21) 43.0
 
July 8, 2020, 6 p.m. 47.7 ppb (44) 33.2 ppb (31) N/A 15.0 ppb (14) N/A N/A N/A 0.46 ppb (5) N/A 6.0 μg/m3 (25) 44.0
 
July 8, 2020, 4 p.m. 51.8 ppb (48) 37.3 ppb (35) N/A 14.0 ppb (13) N/A N/A N/A 0.38 ppb (4) N/A 13.0 μg/m3 (52) 52.0
 
July 8, 2020, 3 p.m. 61.7 ppb (58) 42.8 ppb (40) N/A 19.0 ppb (18) N/A N/A N/A 0.34 ppb (4) N/A 6.0 μg/m3 (25) 58.0
 
July 8, 2020, 2 p.m. 69.9 ppb (67) 53.1 ppb (49) N/A 17.0 ppb (16) N/A N/A N/A 0.37 ppb (4) N/A 4.0 μg/m3 (17) 67.0
 
July 8, 2020, 1 p.m. 11.5 ppb (11) 4.5 ppb (4) N/A 7.0 ppb (6) N/A N/A N/A 0.25 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
July 8, 2020, noon 27.8 ppb (26) 17.0 ppb (16) N/A 11.0 ppb (10) N/A N/A N/A 0.51 ppb (6) N/A 7.0 μg/m3 (29) 29.0
 
July 8, 2020, 11 a.m. 6.0 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.18 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
July 8, 2020, 10 a.m. 5.9 ppb (5) 0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A 0.17 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
July 8, 2020, 9 a.m. 10.1 ppb (9) 1.3 ppb (1) N/A 9.0 ppb (8) N/A N/A N/A 0.22 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
July 8, 2020, 8 a.m. 18.6 ppb (17) 4.7 ppb (4) N/A 14.0 ppb (13) N/A N/A N/A 0.25 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
July 8, 2020, 7 a.m. 15.4 ppb (14) 2.9 ppb (3) N/A 13.0 ppb (12) N/A N/A N/A 0.27 ppb (3) N/A 3.0 μg/m3 (12) 14.0
 
July 8, 2020, 6 a.m. 6.7 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.23 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
July 8, 2020, 5 a.m. 6.0 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.17 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
July 8, 2020, 4 a.m. 5.1 ppb (5) 0.4 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
 
July 8, 2020, 3 a.m. 6.8 ppb (6) 1.1 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.17 ppb (2) N/A 1.0 μg/m3 (4) 6.0
 
July 8, 2020, 2 a.m. 7.3 ppb (7) 1.7 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A 0.16 ppb (2) N/A 1.0 μg/m3 (4) 7.0
 
July 8, 2020, 1 a.m. 8.0 ppb (7) 2.3 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A 0.18 ppb (2) N/A 2.0 μg/m3 (8) 8.0
 
July 8, 2020, midnight 14.6 ppb (14) 6.0 ppb (6) N/A 9.0 ppb (8) N/A N/A N/A 0.2 ppb (2) N/A 3.0 μg/m3 (12) 14.0
 
July 7, 2020, 11 p.m. 41.7 ppb (39) 25.4 ppb (24) N/A 16.0 ppb (15) N/A N/A N/A 0.49 ppb (5) N/A 5.0 μg/m3 (21) 39.0
 
July 7, 2020, 10 p.m. 45.1 ppb (42) 27.1 ppb (25) N/A 18.0 ppb (17) N/A N/A N/A 0.51 ppb (6) N/A 5.0 μg/m3 (21) 42.0
 
July 7, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A 0.44 ppb (5) N/A 3.0 μg/m3 (12) 12.0
 
July 7, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A 0.42 ppb (5) N/A 3.0 μg/m3 (12) 12.0
 
July 7, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (4) N/A 2.0 μg/m3 (8) 8.0
 
July 7, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A 0.43 ppb (5) N/A 4.0 μg/m3 (17) 17.0
 
July 7, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A 0.34 ppb (4) N/A 2.0 μg/m3 (8) 8.0
 
July 7, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A 0.28 ppb (3) N/A 1.0 μg/m3 (4) 4.0
 
July 7, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A 0.29 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
July 7, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
July 7, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A 0.38 ppb (4) N/A 3.0 μg/m3 (12) 12.0
 
July 7, 2020, noon N/A N/A N/A N/A N/A N/A N/A 0.35 ppb (4) N/A 2.0 μg/m3 (8) 8.0
 
July 7, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A 0.16 ppb (2) N/A 1.0 μg/m3 (4) 4.0
 
July 7, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A 0.12 ppb (1) N/A 1.0 μg/m3 (4) 4.0
 
July 7, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A 0.1 ppb (1) N/A -2.0 μg/m3 (0) 1.0
 
July 7, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A 0.11 ppb (1) N/A -2.0 μg/m3 (0) 1.0
 
July 7, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.17 ppb (2) N/A 1.0 μg/m3 (4) 4.0
 
July 7, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A 0.19 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
July 7, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A 0.24 ppb (3) N/A 3.0 μg/m3 (12) 12.0
 
July 7, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A 0.28 ppb (3) N/A 0.0 μg/m3 (0) 3.0
 
July 7, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A 0.35 ppb (4) N/A 2.0 μg/m3 (8) 8.0
 
July 7, 2020, midnight N/A N/A N/A N/A N/A N/A N/A 0.43 ppb (5) N/A 1.0 μg/m3 (4) 5.0
 
July 6, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) N/A 5.0 μg/m3 (21) 21.0
 
July 6, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A 0.54 ppb (6) N/A 5.0 μg/m3 (21) 21.0
 
July 6, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) N/A 3.0 μg/m3 (12) 12.0
 
July 6, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A 0.41 ppb (5) N/A 4.0 μg/m3 (17) 17.0
 
July 6, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A 0.36 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
July 6, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A 0.31 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
July 6, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A 0.32 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
July 6, 2020, 4 p.m. 44.1 ppb (41) 28.0 ppb (26) N/A 16.0 ppb (15) N/A N/A N/A 0.4 ppb (4) N/A 5.0 μg/m3 (21) 41.0
 
July 6, 2020, 3 p.m. 50.5 ppb (47) 31.0 ppb (29) N/A 19.0 ppb (18) N/A N/A N/A 0.37 ppb (4) N/A 5.0 μg/m3 (21) 47.0
 
July 6, 2020, 2 p.m. 56.0 ppb (52) 35.9 ppb (33) N/A 20.0 ppb (19) N/A N/A N/A 0.37 ppb (4) N/A 7.0 μg/m3 (29) 52.0
 
July 6, 2020, 1 p.m. 41.0 ppb (38) 21.9 ppb (20) N/A 19.0 ppb (18) N/A N/A N/A 0.37 ppb (4) N/A 6.0 μg/m3 (25) 38.0
 
July 6, 2020, noon 17.3 ppb (16) 5.9 ppb (5) N/A 11.0 ppb (10) N/A N/A N/A 0.34 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
July 6, 2020, 11 a.m. 28.0 ppb (26) 10.3 ppb (10) N/A 18.0 ppb (17) N/A N/A N/A 0.25 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
July 6, 2020, 10 a.m. 5.1 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.13 ppb (1) N/A 6.0 μg/m3 (25) 25.0
 
July 6, 2020, 9 a.m. 2.3 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.16 ppb (2) N/A 1.0 μg/m3 (4) 4.0
 
July 6, 2020, 8 a.m. 3.3 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.1 ppb (1) N/A 3.0 μg/m3 (12) 12.0
 
July 6, 2020, 7 a.m. 4.7 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.14 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
July 6, 2020, 6 a.m. 6.4 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.17 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
July 6, 2020, 5 a.m. 11.5 ppb (11) 3.4 ppb (3) N/A 8.0 ppb (7) N/A N/A N/A 0.26 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
July 6, 2020, 4 a.m. 13.0 ppb (12) 4.4 ppb (4) N/A 9.0 ppb (8) N/A N/A N/A 0.35 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
July 6, 2020, 3 a.m. 10.6 ppb (10) 2.8 ppb (3) N/A 8.0 ppb (7) N/A N/A N/A 0.27 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
July 6, 2020, 2 a.m. 19.7 ppb (18) 8.6 ppb (8) N/A 11.0 ppb (10) N/A N/A N/A 0.45 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
July 6, 2020, 1 a.m. 21.2 ppb (20) 10.8 ppb (10) N/A 10.0 ppb (9) N/A N/A N/A 0.46 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
July 6, 2020, midnight 18.0 ppb (17) 8.1 ppb (8) N/A 10.0 ppb (9) N/A N/A N/A 0.52 ppb (6) N/A 7.0 μg/m3 (29) 29.0
 
July 5, 2020, 11 p.m. 14.5 ppb (13) 7.4 ppb (7) N/A 7.0 ppb (6) N/A N/A N/A 0.34 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
July 5, 2020, 10 p.m. 16.4 ppb (15) 8.9 ppb (8) N/A 7.0 ppb (6) N/A N/A N/A 0.38 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
July 5, 2020, 9 p.m. 18.4 ppb (17) 10.6 ppb (10) N/A 8.0 ppb (7) N/A N/A N/A 0.42 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
July 5, 2020, 8 p.m. 24.5 ppb (23) 13.6 ppb (13) N/A 11.0 ppb (10) N/A N/A N/A 0.37 ppb (4) N/A 5.0 μg/m3 (21) 23.0
 
July 5, 2020, 7 p.m. 20.8 ppb (19) 12.3 ppb (11) N/A 9.0 ppb (8) N/A N/A N/A 0.38 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
July 5, 2020, 6 p.m. 22.4 ppb (21) 13.1 ppb (12) N/A 9.0 ppb (8) N/A N/A N/A 0.33 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
July 5, 2020, 5 p.m. 24.5 ppb (23) 15.4 ppb (14) N/A 9.0 ppb (8) N/A N/A N/A 0.4 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
July 5, 2020, 4 p.m. 31.6 ppb (29) 20.8 ppb (19) N/A 11.0 ppb (10) N/A N/A N/A 0.38 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
July 5, 2020, 3 p.m. 13.3 ppb (12) 7.5 ppb (7) N/A 6.0 ppb (6) N/A N/A N/A 0.23 ppb (3) N/A 15.0 μg/m3 (56) 56.0
 
July 5, 2020, 2 p.m. 3.5 ppb (3) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.14 ppb (2) N/A 17.0 μg/m3 (61) 61.0
 
July 5, 2020, 1 p.m. 5.6 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.16 ppb (2) N/A 36.0 μg/m3 (101) 101.0
 
July 5, 2020, noon 6.0 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.17 ppb (2) N/A 27.0 μg/m3 (82) 82.0
 
July 5, 2020, 11 a.m. 5.5 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.14 ppb (2) N/A 23.0 μg/m3 (73) 73.0
 
July 5, 2020, 10 a.m. 6.0 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A 0.18 ppb (2) N/A 42.0 μg/m3 (116) 116.0
 
July 5, 2020, 9 a.m. 8.3 ppb (8) 1.6 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A 0.19 ppb (2) N/A 48.0 μg/m3 (131) 131.0
 
July 5, 2020, 8 a.m. 6.5 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A 0.15 ppb (2) N/A 17.0 μg/m3 (61) 61.0
 
July 5, 2020, 7 a.m. 8.2 ppb (8) 0.6 ppb (1) N/A 8.0 ppb (7) N/A N/A N/A 0.16 ppb (2) N/A 22.0 μg/m3 (71) 71.0
 
July 5, 2020, 6 a.m. 7.0 ppb (6) 0.2 ppb (0) N/A 7.0 ppb (6) N/A N/A N/A 0.23 ppb (3) N/A 26.0 μg/m3 (80) 80.0
 
July 5, 2020, 5 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 17.0 μg/m3 (61) 61.0
 
July 5, 2020, 4 a.m. 7.9 ppb (7) 2.3 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A 0.21 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
July 5, 2020, 3 a.m. 7.1 ppb (7) 2.1 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A 0.24 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
July 5, 2020, 2 a.m. 10.6 ppb (10) 4.1 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A 0.36 ppb (4) N/A 3.0 μg/m3 (12) 12.0
 
July 5, 2020, 1 a.m. 22.2 ppb (21) 10.3 ppb (10) N/A 12.0 ppb (11) N/A N/A N/A 0.4 ppb (4) N/A 4.0 μg/m3 (17) 21.0
 
July 5, 2020, midnight 29.4 ppb (27) 15.7 ppb (15) N/A 14.0 ppb (13) N/A N/A N/A 0.4 ppb (4) N/A 3.0 μg/m3 (12) 27.0
 
July 4, 2020, 11 p.m. 20.7 ppb (19) 11.2 ppb (10) N/A 10.0 ppb (9) N/A N/A N/A 0.39 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
July 4, 2020, 10 p.m. 17.5 ppb (16) 9.9 ppb (9) N/A 8.0 ppb (7) N/A N/A N/A 0.37 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
July 4, 2020, 9 p.m. 22.1 ppb (20) 12.4 ppb (11) N/A 10.0 ppb (9) N/A N/A N/A 0.46 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
July 4, 2020, 8 p.m. 27.0 ppb (25) 14.5 ppb (13) N/A 13.0 ppb (12) N/A N/A N/A 0.39 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
July 4, 2020, 7 p.m. 20.1 ppb (19) 10.8 ppb (10) N/A 9.0 ppb (8) N/A N/A N/A 0.45 ppb (5) N/A 5.0 μg/m3 (21) 21.0
 
July 4, 2020, 6 p.m. 27.9 ppb (26) 16.7 ppb (15) N/A 11.0 ppb (10) N/A N/A N/A 0.44 ppb (5) N/A 8.0 μg/m3 (33) 33.0
 
July 4, 2020, 5 p.m. 25.6 ppb (24) 16.8 ppb (16) N/A 9.0 ppb (8) N/A N/A N/A 0.41 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
July 4, 2020, 4 p.m. 34.5 ppb (32) 21.8 ppb (20) N/A 13.0 ppb (12) N/A N/A N/A 0.41 ppb (5) N/A 8.0 μg/m3 (33) 33.0
 
July 4, 2020, 3 p.m. 39.4 ppb (36) 24.2 ppb (22) N/A 15.0 ppb (14) N/A N/A N/A 0.42 ppb (5) N/A 6.0 μg/m3 (25) 36.0
 
July 4, 2020, 2 p.m. 29.3 ppb (27) 16.3 ppb (15) N/A 13.0 ppb (12) N/A N/A N/A 0.36 ppb (4) N/A 6.0 μg/m3 (25) 27.0
 
July 4, 2020, 1 p.m. 29.8 ppb (28) 14.2 ppb (13) N/A 16.0 ppb (15) N/A N/A N/A 0.43 ppb (5) N/A 5.0 μg/m3 (21) 28.0
 
July 4, 2020, noon 14.2 ppb (13) 2.7 ppb (3) N/A 11.0 ppb (10) N/A N/A N/A 0.22 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
July 4, 2020, 11 a.m. 8.6 ppb (8) 1.3 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A 0.17 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
July 4, 2020, 10 a.m. 9.4 ppb (9) 2.3 ppb (2) N/A 7.0 ppb (6) N/A N/A N/A 0.2 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
July 4, 2020, 9 a.m. 7.9 ppb (7) 1.8 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A 0.2 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
July 4, 2020, 8 a.m. 10.5 ppb (10) 2.0 ppb (2) N/A 8.0 ppb (7) N/A N/A N/A 0.2 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
July 4, 2020, 7 a.m. 7.4 ppb (7) 0.4 ppb (0) N/A 7.0 ppb (6) N/A N/A N/A 0.19 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
July 4, 2020, 6 a.m. 12.7 ppb (12) 2.2 ppb (2) N/A 10.0 ppb (9) N/A N/A N/A 0.3 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
July 4, 2020, 5 a.m. 13.1 ppb (12) 2.6 ppb (2) N/A 11.0 ppb (10) N/A N/A N/A 0.29 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
July 4, 2020, 4 a.m. 27.8 ppb (26) 10.9 ppb (10) N/A 17.0 ppb (16) N/A N/A N/A 0.54 ppb (6) N/A 3.0 μg/m3 (12) 26.0
 
July 4, 2020, 3 a.m. 32.0 ppb (30) 13.8 ppb (13) N/A 18.0 ppb (17) N/A N/A N/A 0.6 ppb (7) N/A 1.0 μg/m3 (4) 30.0
 
July 4, 2020, 2 a.m. 24.8 ppb (23) 13.6 ppb (13) N/A 11.0 ppb (10) N/A N/A N/A 0.45 ppb (5) N/A -1.0 μg/m3 (0) 23.0
 
July 4, 2020, 1 a.m. 28.4 ppb (26) 16.3 ppb (15) N/A 12.0 ppb (11) N/A N/A N/A 0.62 ppb (7) N/A -1.0 μg/m3 (0) 26.0
 
July 4, 2020, midnight 21.4 ppb (20) 11.7 ppb (11) N/A 10.0 ppb (9) N/A N/A N/A 0.4 ppb (4) N/A 1.0 μg/m3 (4) 20.0
 
July 3, 2020, 11 p.m. 27.6 ppb (26) 15.9 ppb (15) N/A 12.0 ppb (11) N/A N/A N/A 0.5 ppb (6) N/A 1.0 μg/m3 (4) 26.0
 
July 3, 2020, 10 p.m. 22.9 ppb (21) 13.7 ppb (13) N/A 9.0 ppb (8) N/A N/A N/A 0.4 ppb (4) N/A -1.0 μg/m3 (0) 21.0
 
July 3, 2020, 9 p.m. 22.7 ppb (21) 13.4 ppb (12) N/A 9.0 ppb (8) N/A N/A N/A 0.48 ppb (5) N/A 1.0 μg/m3 (4) 21.0
 
July 3, 2020, 8 p.m. 24.1 ppb (22) 12.0 ppb (11) N/A 12.0 ppb (11) N/A N/A N/A 0.39 ppb (4) N/A 3.0 μg/m3 (12) 22.0
 
July 3, 2020, 7 p.m. 21.0 ppb (19) 13.8 ppb (13) N/A 7.0 ppb (6) N/A N/A N/A 0.39 ppb (4) N/A 3.0 μg/m3 (12) 19.0
 
July 3, 2020, 6 p.m. 25.5 ppb (24) 14.8 ppb (14) N/A 11.0 ppb (10) N/A N/A N/A 0.34 ppb (4) N/A 2.0 μg/m3 (8) 24.0
 
July 3, 2020, 5 p.m. 30.6 ppb (28) 17.8 ppb (16) N/A 13.0 ppb (12) N/A N/A N/A 0.45 ppb (5) N/A 4.0 μg/m3 (17) 28.0