ID: 895

AQSQID: 530330080

Site Name: Seattle-Beacon Hill

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

Updated: Sept. 19, 2020, 2:39 p.m.

Location: Seattle (N Beacon Hill), WA

Reporting: True, Located: True

Current AQI: 11.0

Seattle (N Beacon Hill) WA, US: 47.568236, -122.308628

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 19, 2020, 1 p.m. N/A 0.2 ppb (0) 2.9 ppb (3) 4.0 ppb (4) N/A 1.0 ppb (1) 14.0 ppb (11) 0.24 ppb (3) N/A 0.0 μg/m3 (0) 11.0
 
Sept. 19, 2020, noon N/A 0.2 ppb (0) 2.7 ppb (3) 3.0 ppb (3) N/A 1.0 ppb (1) 15.0 ppb (12) 0.24 ppb (3) N/A 0.0 μg/m3 (0) 12.0
 
Sept. 19, 2020, 11 a.m. N/A 0.2 ppb (0) 1.9 ppb (2) 2.0 ppb (2) N/A 1.0 ppb (1) 16.0 ppb (12) 0.24 ppb (3) N/A 1.0 μg/m3 (4) 12.0
 
Sept. 19, 2020, 10 a.m. N/A 0.1 ppb (0) 1.5 ppb (1) 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.23 ppb (3) N/A 1.0 μg/m3 (4) 4.0
 
Sept. 19, 2020, 9 a.m. N/A 0.1 ppb (0) 2.0 ppb (2) 3.0 ppb (3) N/A 1.0 ppb (1) 17.0 ppb (13) 0.21 ppb (2) N/A 2.0 μg/m3 (8) 13.0
 
Sept. 19, 2020, 8 a.m. N/A 0.2 ppb (0) 2.3 ppb (2) 3.0 ppb (3) N/A 1.0 ppb (1) 15.0 ppb (12) 0.21 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 19, 2020, 7 a.m. N/A 0.2 ppb (0) 2.6 ppb (2) 3.0 ppb (3) N/A 1.0 ppb (1) 12.0 ppb (9) 0.24 ppb (3) N/A 3.0 μg/m3 (12) 12.0
 
Sept. 19, 2020, 6 a.m. N/A 0.2 ppb (0) 2.9 ppb (3) 3.0 ppb (3) N/A 1.0 ppb (1) 10.0 ppb (8) 0.27 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 19, 2020, 5 a.m. N/A 0.3 ppb (0) 4.7 ppb (4) 5.0 ppb (5) N/A 1.0 ppb (1) 10.0 ppb (8) 0.34 ppb (4) N/A 17.0 μg/m3 (61) 61.0
 
Sept. 19, 2020, 4 a.m. N/A 0.3 ppb (0) 8.5 ppb (8) 10.0 ppb (9) N/A 1.0 ppb (1) 11.0 ppb (8) 0.44 ppb (5) N/A 21.0 μg/m3 (69) 69.0
 
Sept. 19, 2020, 3 a.m. N/A 0.8 ppb (1) 13.9 ppb (13) 16.0 ppb (15) N/A 1.0 ppb (1) 10.0 ppb (8) 0.53 ppb (6) N/A 27.0 μg/m3 (82) 82.0
 
Sept. 19, 2020, 2 a.m. N/A 0.6 ppb (1) 8.6 ppb (8) 10.0 ppb (9) N/A 1.0 ppb (1) 13.0 ppb (10) 0.55 ppb (6) N/A 22.0 μg/m3 (71) 71.0
 
Sept. 19, 2020, 1 a.m. N/A 0.7 ppb (1) 7.2 ppb (7) 8.0 ppb (7) N/A 1.0 ppb (1) 18.0 ppb (14) 0.51 ppb (6) N/A 25.0 μg/m3 (78) 78.0
 
Sept. 19, 2020, midnight N/A 0.9 ppb (1) 7.1 ppb (7) 7.0 ppb (6) N/A 1.0 ppb (1) 19.0 ppb (15) 0.45 ppb (5) N/A 25.0 μg/m3 (78) 78.0
 
Sept. 18, 2020, 11 p.m. N/A 1.1 ppb (1) 7.2 ppb (7) 7.0 ppb (6) N/A 1.0 ppb (1) 18.0 ppb (14) 0.45 ppb (5) N/A 26.0 μg/m3 (80) 80.0
 
Sept. 18, 2020, 10 p.m. N/A 1.5 ppb (1) 9.2 ppb (9) 9.0 ppb (8) N/A 1.0 ppb (1) 12.0 ppb (9) 0.5 ppb (6) N/A 29.0 μg/m3 (86) 86.0
 
Sept. 18, 2020, 9 p.m. N/A 1.2 ppb (1) 8.6 ppb (8) 9.0 ppb (8) N/A 1.0 ppb (1) 10.0 ppb (8) 0.51 ppb (6) N/A 25.0 μg/m3 (78) 78.0
 
Sept. 18, 2020, 8 p.m. N/A 0.8 ppb (1) 9.0 ppb (8) 9.0 ppb (8) N/A 1.0 ppb (1) 9.0 ppb (7) 0.53 ppb (6) N/A 33.0 μg/m3 (95) 95.0
 
Sept. 18, 2020, 7 p.m. N/A 1.1 ppb (1) 10.9 ppb (10) 10.0 ppb (9) N/A 1.0 ppb (1) 13.0 ppb (10) 0.61 ppb (7) N/A 45.0 μg/m3 (124) 124.0
 
Sept. 18, 2020, 6 p.m. N/A 8.6 ppb (8) 26.7 ppb (25) 18.0 ppb (17) N/A 1.0 ppb (1) 6.0 ppb (5) 0.8 ppb (9) N/A 64.0 μg/m3 (154) 154.0
 
Sept. 18, 2020, 5 p.m. N/A 6.6 ppb (6) 20.6 ppb (19) 15.0 ppb (14) N/A 1.0 ppb (1) 6.0 ppb (5) 0.78 ppb (9) N/A 57.0 μg/m3 (151) 151.0
 
Sept. 18, 2020, 4 p.m. N/A 6.3 ppb (6) 17.1 ppb (16) 10.0 ppb (9) N/A 1.0 ppb (1) 7.0 ppb (5) 0.76 ppb (8) N/A 52.0 μg/m3 (141) 141.0
 
Sept. 18, 2020, 3 p.m. N/A 15.2 ppb (14) 34.5 ppb (32) 19.0 ppb (18) N/A 1.0 ppb (1) 2.0 ppb (2) 0.88 ppb (10) N/A 61.0 μg/m3 (153) 153.0
 
Sept. 18, 2020, 2 p.m. N/A 17.9 ppb (17) 36.6 ppb (34) 19.0 ppb (18) N/A 1.0 ppb (1) 0.0 ppb (0) 0.82 ppb (9) N/A 57.0 μg/m3 (151) 151.0
 
Sept. 18, 2020, 1 p.m. N/A 19.6 ppb (18) 39.1 ppb (36) 20.0 ppb (19) N/A 2.0 ppb (3) 0.0 ppb (0) 0.76 ppb (8) N/A 61.0 μg/m3 (153) 153.0
 
Sept. 18, 2020, noon N/A 15.1 ppb (14) 34.5 ppb (32) 20.0 ppb (19) N/A 1.0 ppb (1) 0.0 ppb (0) 0.71 ppb (8) N/A 53.0 μg/m3 (144) 144.0
 
Sept. 18, 2020, 11 a.m. N/A 15.7 ppb (15) 32.5 ppb (30) N/A N/A 1.0 ppb (1) 2.0 ppb (2) 0.77 ppb (9) N/A 64.0 μg/m3 (154) 154.0
 
Sept. 18, 2020, 10 a.m. N/A 0.3 ppb (0) 9.8 ppb (9) 9.0 ppb (8) N/A 1.0 ppb (1) 6.0 ppb (5) 0.76 ppb (8) N/A 59.0 μg/m3 (152) 152.0
 
Sept. 18, 2020, 9 a.m. N/A 0.9 ppb (1) 15.7 ppb (15) 16.0 ppb (15) N/A 1.0 ppb (1) 3.0 ppb (2) 0.79 ppb (9) N/A 59.0 μg/m3 (152) 152.0
 
Sept. 18, 2020, 8 a.m. N/A 3.9 ppb (4) 26.2 ppb (24) 25.0 ppb (23) N/A 1.0 ppb (1) 1.0 ppb (1) 0.84 ppb (9) N/A 62.0 μg/m3 (153) 153.0
 
Sept. 18, 2020, 7 a.m. N/A 4.9 ppb (5) 24.0 ppb (22) 22.0 ppb (20) N/A 1.0 ppb (1) 6.0 ppb (5) 0.72 ppb (8) N/A 60.0 μg/m3 (152) 152.0
 
Sept. 18, 2020, 6 a.m. N/A 1.4 ppb (1) 19.0 ppb (18) 19.0 ppb (18) N/A 1.0 ppb (1) 10.0 ppb (8) 0.7 ppb (8) N/A 59.0 μg/m3 (152) 152.0
 
Sept. 18, 2020, 5 a.m. N/A 7.5 ppb (7) 33.6 ppb (31) 30.0 ppb (28) N/A 1.0 ppb (1) 1.0 ppb (1) 0.73 ppb (8) N/A 61.0 μg/m3 (153) 153.0
 
Sept. 18, 2020, 4 a.m. N/A 9.0 ppb (8) 35.0 ppb (32) 30.0 ppb (28) N/A 1.0 ppb (1) 0.0 ppb (0) 0.81 ppb (9) N/A 62.0 μg/m3 (153) 153.0
 
Sept. 18, 2020, 3 a.m. N/A 15.7 ppb (15) 45.5 ppb (42) 34.0 ppb (31) N/A 2.0 ppb (3) 0.0 ppb (0) 0.82 ppb (9) N/A 63.0 μg/m3 (154) 154.0
 
Sept. 18, 2020, 2 a.m. N/A 11.1 ppb (10) 38.7 ppb (36) 32.0 ppb (30) N/A 1.0 ppb (1) 2.0 ppb (2) 0.75 ppb (8) N/A 58.0 μg/m3 (151) 151.0
 
Sept. 18, 2020, 1 a.m. N/A 7.3 ppb (7) 30.7 ppb (28) 27.0 ppb (25) N/A 1.0 ppb (1) 7.0 ppb (5) 0.75 ppb (8) N/A 61.0 μg/m3 (153) 153.0
 
Sept. 18, 2020, midnight N/A 9.0 ppb (8) 34.4 ppb (32) 30.0 ppb (28) N/A 1.0 ppb (1) 7.0 ppb (5) 0.73 ppb (8) N/A 60.0 μg/m3 (152) 152.0
 
Sept. 17, 2020, 11 p.m. N/A 5.9 ppb (5) 26.4 ppb (24) 24.0 ppb (22) N/A 1.0 ppb (1) 14.0 ppb (11) 0.71 ppb (8) N/A 56.0 μg/m3 (150) 150.0
 
Sept. 17, 2020, 10 p.m. N/A 2.3 ppb (2) 12.9 ppb (12) 12.0 ppb (11) N/A 1.0 ppb (1) 23.0 ppb (18) 0.65 ppb (7) N/A 52.0 μg/m3 (141) 141.0
 
Sept. 17, 2020, 9 p.m. N/A 4.0 ppb (4) 13.8 ppb (13) 11.0 ppb (10) N/A 1.0 ppb (1) 18.0 ppb (14) 0.56 ppb (6) N/A 37.0 μg/m3 (104) 104.0
 
Sept. 17, 2020, 8 p.m. N/A 5.7 ppb (5) 15.8 ppb (15) 11.0 ppb (10) N/A 1.0 ppb (1) 14.0 ppb (11) 0.5 ppb (6) N/A 32.0 μg/m3 (93) 93.0
 
Sept. 17, 2020, 7 p.m. N/A 15.5 ppb (14) 31.1 ppb (29) 17.0 ppb (16) N/A 1.0 ppb (1) 6.0 ppb (5) 0.7 ppb (8) N/A 47.0 μg/m3 (129) 129.0
 
Sept. 17, 2020, 6 p.m. N/A 22.0 ppb (20) 38.0 ppb (35) 17.0 ppb (16) N/A 1.0 ppb (1) 3.0 ppb (2) 0.73 ppb (8) N/A 52.0 μg/m3 (141) 141.0
 
Sept. 17, 2020, 5 p.m. N/A 21.4 ppb (20) 33.6 ppb (31) 12.0 ppb (11) N/A 1.0 ppb (1) 7.0 ppb (5) 0.79 ppb (9) N/A 64.0 μg/m3 (154) 154.0
 
Sept. 17, 2020, 4 p.m. N/A 2.9 ppb (3) 11.1 ppb (10) 8.0 ppb (7) N/A 1.0 ppb (1) 6.0 ppb (5) 0.84 ppb (9) N/A 70.0 μg/m3 (158) 158.0
 
Sept. 17, 2020, 3 p.m. N/A 6.5 ppb (6) 17.3 ppb (16) 11.0 ppb (10) N/A 1.0 ppb (1) 3.0 ppb (2) 0.93 ppb (10) N/A 75.0 μg/m3 (160) 160.0
 
Sept. 17, 2020, 2 p.m. N/A 26.0 ppb (24) 41.5 ppb (38) 14.0 ppb (13) N/A 1.0 ppb (1) 1.0 ppb (1) 1.11 ppb (12) N/A 84.0 μg/m3 (165) 165.0
 
Sept. 17, 2020, 1 p.m. N/A 14.0 ppb (13) 28.1 ppb (26) 14.0 ppb (13) N/A 1.0 ppb (1) 1.0 ppb (1) 1.05 ppb (12) N/A 86.0 μg/m3 (166) 166.0
 
Sept. 17, 2020, noon N/A 31.7 ppb (29) 51.3 ppb (48) N/A N/A 2.0 ppb (3) 1.0 ppb (1) 1.19 ppb (13) N/A 93.0 μg/m3 (170) 170.0
 
Sept. 17, 2020, 11 a.m. N/A 0.8 ppb (1) 16.0 ppb (15) N/A N/A 1.0 ppb (1) 1.0 ppb (1) 1.02 ppb (11) N/A 87.0 μg/m3 (167) 167.0
 
Sept. 17, 2020, 10 a.m. N/A 0.4 ppb (0) 13.8 ppb (13) 14.0 ppb (13) N/A 1.0 ppb (1) 3.0 ppb (2) 1.17 ppb (13) N/A 105.0 μg/m3 (176) 176.0
 
Sept. 17, 2020, 9 a.m. N/A 0.5 ppb (0) 12.2 ppb (11) 12.0 ppb (11) N/A 1.0 ppb (1) 5.0 ppb (4) 1.26 ppb (14) N/A 112.0 μg/m3 (180) 180.0
 
Sept. 17, 2020, 8 a.m. N/A 0.4 ppb (0) 16.6 ppb (15) 17.0 ppb (16) N/A 1.0 ppb (1) 4.0 ppb (3) 1.1 ppb (12) N/A 96.0 μg/m3 (171) 171.0
 
Sept. 17, 2020, 7 a.m. N/A 1.2 ppb (1) 19.4 ppb (18) 20.0 ppb (19) N/A 1.0 ppb (1) 3.0 ppb (2) 1.09 ppb (12) N/A 94.0 μg/m3 (170) 170.0
 
Sept. 17, 2020, 6 a.m. N/A 1.9 ppb (2) 23.8 ppb (22) 24.0 ppb (22) N/A 1.0 ppb (1) 3.0 ppb (2) 0.99 ppb (11) N/A 82.0 μg/m3 (164) 164.0
 
Sept. 17, 2020, 5 a.m. N/A 0.5 ppb (0) 19.4 ppb (18) 21.0 ppb (19) N/A 1.0 ppb (1) 7.0 ppb (5) 0.95 ppb (11) N/A 80.0 μg/m3 (163) 163.0
 
Sept. 17, 2020, 4 a.m. N/A 1.1 ppb (1) 23.1 ppb (21) 24.0 ppb (22) N/A 2.0 ppb (3) 6.0 ppb (5) 1.03 ppb (11) N/A 89.0 μg/m3 (168) 168.0
 
Sept. 17, 2020, 3 a.m. N/A 1.2 ppb (1) 24.7 ppb (23) 26.0 ppb (24) N/A 1.0 ppb (1) 7.0 ppb (5) 0.98 ppb (11) N/A 83.0 μg/m3 (164) 164.0
 
Sept. 17, 2020, 2 a.m. N/A 0.3 ppb (0) 15.8 ppb (15) 17.0 ppb (16) N/A 1.0 ppb (1) 14.0 ppb (11) 0.87 ppb (10) N/A 74.0 μg/m3 (160) 160.0
 
Sept. 17, 2020, 1 a.m. N/A 16.7 ppb (15) 43.3 ppb (40) 29.0 ppb (27) N/A 2.0 ppb (3) 5.0 ppb (4) 0.86 ppb (10) N/A 69.0 μg/m3 (157) 157.0
 
Sept. 17, 2020, midnight N/A 4.9 ppb (5) 20.5 ppb (19) 17.0 ppb (16) N/A 1.0 ppb (1) 18.0 ppb (14) 0.77 ppb (9) N/A 66.0 μg/m3 (156) 156.0
 
Sept. 16, 2020, 11 p.m. N/A 2.0 ppb (2) 16.3 ppb (15) 15.0 ppb (14) N/A 1.0 ppb (1) 17.0 ppb (13) 0.72 ppb (8) N/A 70.0 μg/m3 (158) 158.0
 
Sept. 16, 2020, 10 p.m. N/A 4.0 ppb (4) 20.7 ppb (19) 18.0 ppb (17) N/A 1.0 ppb (1) 15.0 ppb (12) 0.78 ppb (9) N/A 77.0 μg/m3 (161) 161.0
 
Sept. 16, 2020, 9 p.m. N/A 6.6 ppb (6) 24.8 ppb (23) 19.0 ppb (18) N/A 1.0 ppb (1) 14.0 ppb (11) 0.89 ppb (10) N/A N/A 23.0
 
Sept. 16, 2020, 8 p.m. N/A 11.2 ppb (10) 30.8 ppb (29) 20.0 ppb (19) N/A 1.0 ppb (1) 13.0 ppb (10) 0.93 ppb (10) N/A N/A 29.0
 
Sept. 16, 2020, 7 p.m. N/A 11.6 ppb (11) 33.2 ppb (31) 22.0 ppb (20) N/A 1.0 ppb (1) 9.0 ppb (7) 0.96 ppb (11) N/A 94.0 μg/m3 (170) 170.0
 
Sept. 16, 2020, 6 p.m. N/A 9.5 ppb (9) 30.9 ppb (29) 21.0 ppb (19) N/A 1.0 ppb (1) 9.0 ppb (7) 0.98 ppb (11) N/A 102.0 μg/m3 (174) 174.0
 
Sept. 16, 2020, 5 p.m. N/A 16.0 ppb (15) 39.8 ppb (37) 24.0 ppb (22) N/A 1.0 ppb (1) 9.0 ppb (7) 1.04 ppb (12) N/A 107.0 μg/m3 (177) 177.0
 
Sept. 16, 2020, 4 p.m. N/A 1.0 ppb (1) 14.2 ppb (13) 11.0 ppb (10) N/A 1.0 ppb (1) 18.0 ppb (14) 0.99 ppb (11) N/A 109.0 μg/m3 (178) 178.0
 
Sept. 16, 2020, 3 p.m. N/A 1.2 ppb (1) 19.1 ppb (18) 17.0 ppb (16) N/A 1.0 ppb (1) 15.0 ppb (12) 1.03 ppb (11) N/A 110.0 μg/m3 (179) 179.0
 
Sept. 16, 2020, 2 p.m. N/A 0.5 ppb (0) 15.9 ppb (15) 14.0 ppb (13) N/A 1.0 ppb (1) 16.0 ppb (12) 1.04 ppb (12) N/A 110.0 μg/m3 (179) 179.0
 
Sept. 16, 2020, 1 p.m. N/A 0.1 ppb (0) 8.6 ppb (8) 6.0 ppb (6) N/A 1.0 ppb (1) 22.0 ppb (17) 1.04 ppb (12) N/A 109.0 μg/m3 (178) 178.0
 
Sept. 16, 2020, noon N/A 0.1 ppb (0) 8.2 ppb (8) 5.0 ppb (5) N/A 1.0 ppb (1) 25.0 ppb (19) 1.06 ppb (12) N/A 116.0 μg/m3 (182) 182.0
 
Sept. 16, 2020, 11 a.m. N/A 0.1 ppb (0) 7.2 ppb (7) 5.0 ppb (5) N/A 1.0 ppb (1) 28.0 ppb (22) 1.12 ppb (12) N/A 116.0 μg/m3 (182) 182.0
 
Sept. 16, 2020, 10 a.m. N/A 0.1 ppb (0) 6.5 ppb (6) 4.0 ppb (4) N/A 1.0 ppb (1) N/A 1.15 ppb (13) N/A 121.0 μg/m3 (184) 184.0
 
Sept. 16, 2020, 9 a.m. N/A 0.1 ppb (0) 7.8 ppb (7) 6.0 ppb (6) N/A 1.0 ppb (1) 30.0 ppb (23) 1.2 ppb (13) N/A 127.0 μg/m3 (188) 188.0
 
Sept. 16, 2020, 8 a.m. N/A 0.1 ppb (0) 13.2 ppb (12) 11.0 ppb (10) N/A 1.0 ppb (1) 27.0 ppb (21) 1.31 ppb (15) N/A 137.0 μg/m3 (193) 193.0
 
Sept. 16, 2020, 7 a.m. N/A 0.1 ppb (0) 20.7 ppb (19) 20.0 ppb (19) N/A N/A 21.0 ppb (16) 0.76 ppb (8) N/A 143.0 μg/m3 (196) 196.0
 
Sept. 16, 2020, 6 a.m. N/A 0.1 ppb (0) 13.4 ppb (12) 13.0 ppb (12) N/A N/A 27.0 ppb (21) 0.1 ppb (1) N/A 151.0 μg/m3 (200) 200.0
 
Sept. 16, 2020, 5 a.m. N/A 0.1 ppb (0) 13.3 ppb (12) 12.0 ppb (11) N/A 1.0 ppb (1) 32.0 ppb (25) N/A N/A 151.0 μg/m3 (200) 200.0
 
Sept. 16, 2020, 4 a.m. N/A 0.4 ppb (0) 18.1 ppb (17) 19.0 ppb (18) N/A 1.0 ppb (1) 26.0 ppb (20) N/A N/A 152.0 μg/m3 (202) 202.0
 
Sept. 16, 2020, 3 a.m. N/A N/A N/A 37.0 ppb (34) N/A 1.0 ppb (1) 16.0 ppb (12) 1.57 ppb (17) N/A 158.0 μg/m3 (208) 208.0
 
Sept. 16, 2020, 2 a.m. N/A 0.3 ppb (0) 35.9 ppb (33) 39.0 ppb (36) N/A 1.0 ppb (1) 17.0 ppb (13) 1.56 ppb (17) N/A 158.0 μg/m3 (208) 208.0
 
Sept. 16, 2020, 1 a.m. N/A 0.3 ppb (0) 25.7 ppb (24) 27.0 ppb (25) N/A 1.0 ppb (1) 34.0 ppb (26) 1.55 ppb (17) N/A 156.0 μg/m3 (206) 206.0
 
Sept. 16, 2020, midnight N/A 0.6 ppb (1) 24.0 ppb (22) 24.0 ppb (22) N/A 1.0 ppb (1) 44.0 ppb (34) 1.59 ppb (18) N/A 167.0 μg/m3 (216) 216.0
 
Sept. 15, 2020, 11 p.m. N/A 1.2 ppb (1) 22.7 ppb (21) 22.0 ppb (20) N/A 1.0 ppb (1) 43.0 ppb (33) 1.68 ppb (19) N/A 170.0 μg/m3 (220) 220.0
 
Sept. 15, 2020, 10 p.m. N/A 1.8 ppb (2) 19.3 ppb (18) 16.0 ppb (15) N/A 1.0 ppb (1) 48.0 ppb (37) 1.77 ppb (20) N/A 189.0 μg/m3 (238) 238.0
 
Sept. 15, 2020, 9 p.m. N/A 7.4 ppb (7) 38.1 ppb (35) 32.0 ppb (30) N/A 1.0 ppb (1) 33.0 ppb (25) 1.63 ppb (18) N/A 171.0 μg/m3 (220) 220.0
 
Sept. 15, 2020, 8 p.m. N/A 3.4 ppb (3) 19.3 ppb (18) 16.0 ppb (15) N/A 1.0 ppb (1) 33.0 ppb (25) 1.35 ppb (15) N/A 141.0 μg/m3 (195) 195.0
 
Sept. 15, 2020, 7 p.m. N/A 10.4 ppb (10) 35.5 ppb (33) 26.0 ppb (24) N/A 1.0 ppb (1) 22.0 ppb (17) 1.59 ppb (18) N/A 170.0 μg/m3 (220) 220.0
 
Sept. 15, 2020, 6 p.m. N/A 17.1 ppb (16) 48.5 ppb (45) 34.0 ppb (31) N/A 2.0 ppb (3) 12.0 ppb (9) 1.61 ppb (18) N/A 173.0 μg/m3 (222) 222.0
 
Sept. 15, 2020, 5 p.m. N/A 27.8 ppb (26) 59.4 ppb (56) 33.0 ppb (31) N/A 2.0 ppb (3) 6.0 ppb (5) 1.79 ppb (20) N/A 184.0 μg/m3 (234) 234.0
 
Sept. 15, 2020, 4 p.m. N/A 10.2 ppb (9) 28.7 ppb (27) 18.0 ppb (17) N/A 1.0 ppb (1) 9.0 ppb (7) 1.74 ppb (19) N/A 173.0 μg/m3 (222) 222.0
 
Sept. 15, 2020, 3 p.m. N/A 6.3 ppb (6) 21.9 ppb (20) 15.0 ppb (14) N/A 1.0 ppb (1) 5.0 ppb (4) 1.71 ppb (19) N/A 183.0 μg/m3 (232) 232.0
 
Sept. 15, 2020, 2 p.m. N/A 4.7 ppb (4) 21.5 ppb (20) 15.0 ppb (14) N/A 1.0 ppb (1) 3.0 ppb (2) 1.65 ppb (18) N/A 181.0 μg/m3 (230) 230.0
 
Sept. 15, 2020, 1 p.m. N/A 11.8 ppb (11) 35.2 ppb (33) 23.0 ppb (21) N/A 1.0 ppb (1) 1.0 ppb (1) 1.7 ppb (19) N/A 188.0 μg/m3 (238) 238.0
 
Sept. 15, 2020, noon N/A 1.7 ppb (2) 21.1 ppb (20) 20.0 ppb (19) N/A 1.0 ppb (1) 6.0 ppb (5) 1.75 ppb (19) N/A 201.0 μg/m3 (250) 250.0
 
Sept. 15, 2020, 11 a.m. N/A 1.4 ppb (1) 20.9 ppb (19) 18.0 ppb (17) N/A 1.0 ppb (1) 7.0 ppb (5) 1.7 ppb (19) N/A 193.0 μg/m3 (242) 242.0
 
Sept. 15, 2020, 10 a.m. N/A 2.3 ppb (2) 25.2 ppb (23) 22.0 ppb (20) N/A 1.0 ppb (1) 3.0 ppb (2) 1.57 ppb (17) N/A 184.0 μg/m3 (234) 234.0
 
Sept. 15, 2020, 9 a.m. N/A 2.0 ppb (2) 20.9 ppb (19) 18.0 ppb (17) N/A 1.0 ppb (1) 7.0 ppb (5) 1.55 ppb (17) N/A 182.0 μg/m3 (232) 232.0
 
Sept. 15, 2020, 8 a.m. N/A 0.2 ppb (0) 13.0 ppb (12) 10.0 ppb (9) N/A 1.0 ppb (1) 13.0 ppb (10) 1.48 ppb (16) N/A 177.0 μg/m3 (226) 226.0
 
Sept. 15, 2020, 7 a.m. N/A 0.2 ppb (0) 15.9 ppb (15) 14.0 ppb (13) N/A 1.0 ppb (1) 13.0 ppb (10) 1.45 ppb (16) N/A 181.0 μg/m3 (230) 230.0
 
Sept. 15, 2020, 6 a.m. N/A 0.1 ppb (0) 18.4 ppb (17) 16.0 ppb (15) N/A 1.0 ppb (1) 17.0 ppb (13) 1.43 ppb (16) N/A 185.0 μg/m3 (234) 234.0
 
Sept. 15, 2020, 5 a.m. N/A 1.2 ppb (1) 25.5 ppb (24) 24.0 ppb (22) N/A 1.0 ppb (1) 13.0 ppb (10) 1.42 ppb (16) N/A 187.0 μg/m3 (236) 236.0
 
Sept. 15, 2020, 4 a.m. N/A 22.3 ppb (21) 57.1 ppb (53) 38.0 ppb (35) N/A 2.0 ppb (3) 1.0 ppb (1) 1.53 ppb (17) N/A 186.0 μg/m3 (236) 236.0
 
Sept. 15, 2020, 3 a.m. N/A 15.1 ppb (14) 51.5 ppb (48) 40.0 ppb (37) N/A 1.0 ppb (1) 1.0 ppb (1) 1.54 ppb (17) N/A 181.0 μg/m3 (230) 230.0
 
Sept. 15, 2020, 2 a.m. N/A 9.5 ppb (9) 47.8 ppb (44) 40.0 ppb (37) N/A 1.0 ppb (1) 7.0 ppb (5) 1.56 ppb (17) N/A 185.0 μg/m3 (234) 234.0
 
Sept. 15, 2020, 1 a.m. N/A 6.3 ppb (6) 55.3 ppb (51) 51.0 ppb (47) N/A 1.0 ppb (1) 8.0 ppb (6) 1.69 ppb (19) N/A 199.0 μg/m3 (248) 248.0
 
Sept. 15, 2020, midnight N/A 1.2 ppb (1) 30.6 ppb (28) 27.0 ppb (25) N/A 1.0 ppb (1) 32.0 ppb (25) 1.71 ppb (19) N/A 199.0 μg/m3 (248) 248.0
 
Sept. 14, 2020, 11 p.m. N/A 1.4 ppb (1) 31.1 ppb (29) 26.0 ppb (24) N/A 1.0 ppb (1) 35.0 ppb (27) 1.73 ppb (19) N/A 209.0 μg/m3 (258) 258.0
 
Sept. 14, 2020, 10 p.m. N/A 7.8 ppb (7) 44.4 ppb (41) 35.0 ppb (32) N/A 1.0 ppb (1) N/A 1.68 ppb (19) N/A 185.0 μg/m3 (234) 234.0
 
Sept. 14, 2020, 9 p.m. N/A 12.9 ppb (12) 47.1 ppb (44) 34.0 ppb (31) N/A 1.0 ppb (1) N/A 1.64 ppb (18) N/A 179.0 μg/m3 (228) 228.0
 
Sept. 14, 2020, 8 p.m. N/A 27.3 ppb (25) 62.5 ppb (59) 35.0 ppb (32) N/A 2.0 ppb (3) N/A 1.59 ppb (18) N/A 180.0 μg/m3 (230) 230.0
 
Sept. 14, 2020, 7 p.m. N/A 45.8 ppb (42) 77.5 ppb (75) 32.0 ppb (30) N/A 2.0 ppb (3) 34.0 ppb (26) 1.58 ppb (18) N/A 171.0 μg/m3 (220) 220.0
 
Sept. 14, 2020, 6 p.m. N/A 20.6 ppb (19) 47.1 ppb (44) 25.0 ppb (23) N/A 2.0 ppb (3) 10.0 ppb (8) 1.7 ppb (19) N/A 181.0 μg/m3 (230) 230.0
 
Sept. 14, 2020, 5 p.m. N/A 54.1 ppb (50) 83.7 ppb (82) 30.0 ppb (28) N/A 2.0 ppb (3) 2.0 ppb (2) 1.61 ppb (18) N/A 173.0 μg/m3 (222) 222.0
 
Sept. 14, 2020, 4 p.m. N/A 41.8 ppb (39) 68.1 ppb (65) 26.0 ppb (24) N/A 2.0 ppb (3) 2.0 ppb (2) 1.55 ppb (17) N/A 170.0 μg/m3 (220) 220.0
 
Sept. 14, 2020, 3 p.m. N/A 62.2 ppb (59) 87.5 ppb (86) 25.0 ppb (23) N/A 3.0 ppb (4) 1.0 ppb (1) 1.48 ppb (16) N/A 168.0 μg/m3 (218) 218.0
 
Sept. 14, 2020, 2 p.m. N/A 33.5 ppb (31) 58.9 ppb (55) 25.0 ppb (23) N/A 2.0 ppb (3) 1.0 ppb (1) 1.72 ppb (19) N/A 172.0 μg/m3 (222) 222.0
 
Sept. 14, 2020, 1 p.m. N/A 35.1 ppb (32) 62.4 ppb (59) 27.0 ppb (25) N/A 2.0 ppb (3) 1.0 ppb (1) 1.74 ppb (19) N/A 178.0 μg/m3 (228) 228.0
 
Sept. 14, 2020, noon N/A 33.9 ppb (31) 61.6 ppb (58) 29.0 ppb (27) N/A 2.0 ppb (3) 1.0 ppb (1) 1.52 ppb (17) N/A 171.0 μg/m3 (220) 220.0
 
Sept. 14, 2020, 11 a.m. N/A 24.9 ppb (23) 49.3 ppb (46) N/A N/A 2.0 ppb (3) 1.0 ppb (1) 1.34 ppb (15) N/A 161.0 μg/m3 (210) 210.0
 
Sept. 14, 2020, 10 a.m. N/A 19.4 ppb (18) 46.2 ppb (43) 27.0 ppb (25) N/A 1.0 ppb (1) 1.0 ppb (1) 1.39 ppb (15) N/A 164.0 μg/m3 (214) 214.0
 
Sept. 14, 2020, 9 a.m. N/A 29.8 ppb (28) 59.4 ppb (56) 30.0 ppb (28) N/A 2.0 ppb (3) 1.0 ppb (1) 1.43 ppb (16) N/A 161.0 μg/m3 (210) 210.0
 
Sept. 14, 2020, 8 a.m. N/A 11.5 ppb (11) 36.8 ppb (34) 26.0 ppb (24) N/A 1.0 ppb (1) 3.0 ppb (2) 1.49 ppb (17) N/A 174.0 μg/m3 (224) 224.0
 
Sept. 14, 2020, 7 a.m. N/A 1.9 ppb (2) 27.2 ppb (25) 24.0 ppb (22) N/A 1.0 ppb (1) 6.0 ppb (5) 1.54 ppb (17) N/A 172.0 μg/m3 (222) 222.0
 
Sept. 14, 2020, 6 a.m. N/A 15.9 ppb (15) 50.8 ppb (47) 36.0 ppb (33) N/A 1.0 ppb (1) 2.0 ppb (2) 1.46 ppb (16) N/A 170.0 μg/m3 (220) 220.0
 
Sept. 14, 2020, 5 a.m. N/A 11.1 ppb (10) 40.4 ppb (37) 30.0 ppb (28) N/A 1.0 ppb (1) 8.0 ppb (6) 1.46 ppb (16) N/A 182.0 μg/m3 (232) 232.0
 
Sept. 14, 2020, 4 a.m. N/A 13.4 ppb (12) 45.0 ppb (42) 31.0 ppb (29) N/A 2.0 ppb (3) 10.0 ppb (8) 1.42 ppb (16) N/A 184.0 μg/m3 (234) 234.0
 
Sept. 14, 2020, 3 a.m. N/A 6.5 ppb (6) 41.8 ppb (39) 36.0 ppb (33) N/A 1.0 ppb (1) 10.0 ppb (8) 1.55 ppb (17) N/A 186.0 μg/m3 (236) 236.0
 
Sept. 14, 2020, 2 a.m. N/A 9.7 ppb (9) 52.6 ppb (49) 47.0 ppb (44) N/A 1.0 ppb (1) 3.0 ppb (2) 1.61 ppb (18) N/A 179.0 μg/m3 (228) 228.0
 
Sept. 14, 2020, 1 a.m. N/A 2.1 ppb (2) 32.4 ppb (30) 31.0 ppb (29) N/A 1.0 ppb (1) 16.0 ppb (12) 1.64 ppb (18) N/A 184.0 μg/m3 (234) 234.0
 
Sept. 14, 2020, midnight N/A 2.4 ppb (2) 28.0 ppb (26) 25.0 ppb (23) N/A 1.0 ppb (1) 23.0 ppb (18) 1.61 ppb (18) N/A 173.0 μg/m3 (222) 222.0
 
Sept. 13, 2020, 11 p.m. N/A 7.6 ppb (7) 36.7 ppb (34) 30.0 ppb (28) N/A 2.0 ppb (3) 13.0 ppb (10) 1.5 ppb (17) N/A 156.0 μg/m3 (206) 206.0
 
Sept. 13, 2020, 10 p.m. N/A 9.5 ppb (9) 35.4 ppb (33) 27.0 ppb (25) N/A 2.0 ppb (3) 10.0 ppb (8) 1.5 ppb (17) N/A 152.0 μg/m3 (202) 202.0
 
Sept. 13, 2020, 9 p.m. N/A 19.4 ppb (18) 45.9 ppb (42) 28.0 ppb (26) N/A 2.0 ppb (3) 7.0 ppb (5) 1.47 ppb (16) N/A 146.0 μg/m3 (198) 198.0
 
Sept. 13, 2020, 8 p.m. N/A 23.3 ppb (22) 44.4 ppb (41) 23.0 ppb (21) N/A 2.0 ppb (3) 7.0 ppb (5) 1.42 ppb (16) N/A 144.0 μg/m3 (197) 197.0
 
Sept. 13, 2020, 7 p.m. N/A 22.0 ppb (20) 41.8 ppb (39) 20.0 ppb (19) N/A 2.0 ppb (3) 6.0 ppb (5) 1.45 ppb (16) N/A 153.0 μg/m3 (202) 202.0
 
Sept. 13, 2020, 6 p.m. N/A 35.3 ppb (33) 54.9 ppb (51) 20.0 ppb (19) N/A 2.0 ppb (3) 3.0 ppb (2) 1.58 ppb (18) N/A 150.0 μg/m3 (200) 200.0
 
Sept. 13, 2020, 5 p.m. N/A 29.9 ppb (28) 44.2 ppb (41) 14.0 ppb (13) N/A 2.0 ppb (3) 2.0 ppb (2) 1.62 ppb (18) N/A 145.0 μg/m3 (197) 197.0
 
Sept. 13, 2020, 4 p.m. N/A 43.5 ppb (40) 55.3 ppb (51) 11.0 ppb (10) N/A 2.0 ppb (3) 1.0 ppb (1) 1.64 ppb (18) N/A 133.0 μg/m3 (191) 191.0
 
Sept. 13, 2020, 3 p.m. N/A 46.8 ppb (43) 59.9 ppb (56) 13.0 ppb (12) N/A 2.0 ppb (3) 1.0 ppb (1) 1.65 ppb (18) N/A 124.0 μg/m3 (186) 186.0
 
Sept. 13, 2020, 2 p.m. N/A 50.6 ppb (47) 64.6 ppb (61) 14.0 ppb (13) N/A 2.0 ppb (3) 1.0 ppb (1) 1.57 ppb (17) N/A 132.0 μg/m3 (190) 190.0
 
Sept. 13, 2020, 1 p.m. N/A 43.2 ppb (40) 56.5 ppb (53) 13.0 ppb (12) N/A 2.0 ppb (3) 1.0 ppb (1) 1.55 ppb (17) N/A 127.0 μg/m3 (188) 188.0
 
Sept. 13, 2020, noon N/A 20.3 ppb (19) 31.0 ppb (29) 11.0 ppb (10) N/A 1.0 ppb (1) 1.0 ppb (1) 1.48 ppb (16) N/A 132.0 μg/m3 (190) 190.0
 
Sept. 13, 2020, 11 a.m. N/A 10.1 ppb (9) 20.4 ppb (19) 10.0 ppb (9) N/A 1.0 ppb (1) 1.0 ppb (1) 1.45 ppb (16) N/A 133.0 μg/m3 (191) 191.0
 
Sept. 13, 2020, 10 a.m. N/A 9.4 ppb (9) 21.7 ppb (20) 12.0 ppb (11) N/A 1.0 ppb (1) N/A 1.43 ppb (16) N/A 133.0 μg/m3 (191) 191.0
 
Sept. 13, 2020, 9 a.m. N/A 6.2 ppb (6) 18.7 ppb (17) 13.0 ppb (12) N/A 1.0 ppb (1) 1.0 ppb (1) 1.42 ppb (16) N/A 135.0 μg/m3 (192) 192.0
 
Sept. 13, 2020, 8 a.m. N/A 10.1 ppb (9) 25.1 ppb (23) 15.0 ppb (14) N/A 1.0 ppb (1) 1.0 ppb (1) 1.43 ppb (16) N/A 140.0 μg/m3 (194) 194.0
 
Sept. 13, 2020, 7 a.m. N/A 19.3 ppb (18) 38.2 ppb (35) 20.0 ppb (19) N/A 2.0 ppb (3) 1.0 ppb (1) 1.53 ppb (17) N/A 145.0 μg/m3 (197) 197.0
 
Sept. 13, 2020, 6 a.m. N/A 21.3 ppb (20) 39.2 ppb (36) 18.0 ppb (17) N/A 2.0 ppb (3) 1.0 ppb (1) 1.33 ppb (15) N/A 146.0 μg/m3 (198) 198.0
 
Sept. 13, 2020, 5 a.m. N/A 15.5 ppb (14) 32.8 ppb (30) 18.0 ppb (17) N/A 1.0 ppb (1) 1.0 ppb (1) 1.3 ppb (14) N/A 142.0 μg/m3 (196) 196.0
 
Sept. 13, 2020, 4 a.m. N/A 12.9 ppb (12) 30.2 ppb (28) 18.0 ppb (17) N/A 1.0 ppb (1) 1.0 ppb (1) 1.25 ppb (14) N/A 143.0 μg/m3 (196) 196.0
 
Sept. 13, 2020, 3 a.m. N/A 7.9 ppb (7) 25.4 ppb (24) 18.0 ppb (17) N/A 1.0 ppb (1) 1.0 ppb (1) 1.26 ppb (14) N/A 149.0 μg/m3 (199) 199.0
 
Sept. 13, 2020, 2 a.m. N/A 15.3 ppb (14) 34.2 ppb (32) 20.0 ppb (19) N/A 2.0 ppb (3) 1.0 ppb (1) 1.26 ppb (14) N/A 152.0 μg/m3 (202) 202.0
 
Sept. 13, 2020, 1 a.m. N/A 27.8 ppb (26) 49.1 ppb (45) 23.0 ppb (21) N/A 2.0 ppb (3) 1.0 ppb (1) 1.29 ppb (14) N/A 147.0 μg/m3 (198) 198.0
 
Sept. 13, 2020, midnight N/A 18.5 ppb (17) 38.4 ppb (36) 21.0 ppb (19) N/A 2.0 ppb (3) 2.0 ppb (2) 1.27 ppb (14) N/A 145.0 μg/m3 (197) 197.0
 
Sept. 12, 2020, 11 p.m. N/A 11.7 ppb (11) 31.1 ppb (29) 20.0 ppb (19) N/A 1.0 ppb (1) 2.0 ppb (2) 1.27 ppb (14) N/A 149.0 μg/m3 (199) 199.0
 
Sept. 12, 2020, 10 p.m. N/A 12.4 ppb (11) 31.5 ppb (29) 20.0 ppb (19) N/A 1.0 ppb (1) 3.0 ppb (2) 1.29 ppb (14) N/A 142.0 μg/m3 (196) 196.0
 
Sept. 12, 2020, 9 p.m. N/A 2.3 ppb (2) 19.2 ppb (18) 17.0 ppb (16) N/A 1.0 ppb (1) 5.0 ppb (4) 1.29 ppb (14) N/A 144.0 μg/m3 (197) 197.0
 
Sept. 12, 2020, 8 p.m. N/A 2.2 ppb (2) 19.0 ppb (18) 17.0 ppb (16) N/A 1.0 ppb (1) 5.0 ppb (4) 1.24 ppb (14) N/A 146.0 μg/m3 (198) 198.0
 
Sept. 12, 2020, 7 p.m. N/A 0.9 ppb (1) 14.5 ppb (13) 13.0 ppb (12) N/A 1.0 ppb (1) 8.0 ppb (6) 1.2 ppb (13) N/A 147.0 μg/m3 (198) 198.0
 
Sept. 12, 2020, 6 p.m. N/A 0.7 ppb (1) 9.7 ppb (9) 8.0 ppb (7) N/A 1.0 ppb (1) 10.0 ppb (8) 1.16 ppb (13) N/A 143.0 μg/m3 (196) 196.0
 
Sept. 12, 2020, 5 p.m. N/A 0.4 ppb (0) 10.4 ppb (10) 10.0 ppb (9) N/A 1.0 ppb (1) 9.0 ppb (7) 1.16 ppb (13) N/A 142.0 μg/m3 (196) 196.0
 
Sept. 12, 2020, 4 p.m. N/A 0.3 ppb (0) 10.2 ppb (9) 9.0 ppb (8) N/A 1.0 ppb (1) 9.0 ppb (7) 1.12 ppb (12) N/A 136.0 μg/m3 (192) 192.0
 
Sept. 12, 2020, 3 p.m. N/A 0.2 ppb (0) 8.8 ppb (8) 8.0 ppb (7) N/A 1.0 ppb (1) 10.0 ppb (8) 1.07 ppb (12) N/A 133.0 μg/m3 (191) 191.0
 
Sept. 12, 2020, 2 p.m. N/A 0.6 ppb (1) 12.5 ppb (12) 12.0 ppb (11) N/A 1.0 ppb (1) 6.0 ppb (5) 1.04 ppb (12) N/A 124.0 μg/m3 (186) 186.0