ID: 1803

AQSQID: 160010010

Site Name: St. Lukes Meridian

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

Updated: Sept. 26, 2020, 7:39 p.m.

Location: Meridian (Whiteriver Dr), ID

Reporting: True, Located: True

Current AQI: 29.0

Meridian (Whiteriver Dr) ID, US: 43.600699, -116.347853

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 26, 2020, 6 p.m. 1.4 ppb (1) -0.3 ppb (0) 1.1 ppb (1) 2.0 ppb (2) 0.4 ppb (0) 0.0 ppb (0) 36.0 ppb (28) 0.1 ppb (1) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 26, 2020, 5 p.m. 1.7 ppb (2) -0.1 ppb (0) 1.5 ppb (1) 2.0 ppb (2) 0.7 ppb (1) 0.0 ppb (0) 33.0 ppb (25) 0.11 ppb (1) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 26, 2020, 4 p.m. 4.6 ppb (4) 1.0 ppb (1) 3.7 ppb (3) 4.0 ppb (4) 1.9 ppb (2) 0.0 ppb (0) 29.0 ppb (22) 0.12 ppb (1) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 26, 2020, 3 p.m. 10.5 ppb (10) 1.6 ppb (1) 9.4 ppb (9) 9.0 ppb (8) 6.2 ppb (6) 0.0 ppb (0) 19.0 ppb (15) 0.15 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 26, 2020, 2 p.m. 13.0 ppb (12) 1.0 ppb (1) 12.4 ppb (11) 12.0 ppb (11) 9.1 ppb (8) 0.0 ppb (0) 13.0 ppb (10) 0.18 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 26, 2020, 1 p.m. 6.8 ppb (6) -0.1 ppb (0) 6.7 ppb (6) 7.0 ppb (6) 5.3 ppb (5) 0.0 ppb (0) 22.0 ppb (17) 0.14 ppb (2) N/A 3.0 μg/m3 (12) 17.0
 
Sept. 26, 2020, noon 1.1 ppb (1) -0.5 ppb (0) 0.5 ppb (0) 2.0 ppb (2) 0.3 ppb (0) 0.0 ppb (0) 31.0 ppb (24) 0.1 ppb (1) N/A 1.0 μg/m3 (4) 24.0
 
Sept. 26, 2020, 11 a.m. 1.0 ppb (1) -0.5 ppb (0) 0.7 ppb (1) 2.0 ppb (2) 0.3 ppb (0) 0.0 ppb (0) 29.0 ppb (22) 0.1 ppb (1) N/A 5.0 μg/m3 (21) 22.0
 
Sept. 26, 2020, 10 a.m. 1.1 ppb (1) -0.5 ppb (0) 1.0 ppb (1) 2.0 ppb (2) 0.6 ppb (1) 0.0 ppb (0) 28.0 ppb (22) 0.11 ppb (1) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 26, 2020, 9 a.m. 4.5 ppb (4) -0.3 ppb (0) 3.9 ppb (4) 5.0 ppb (5) 3.2 ppb (3) 0.0 ppb (0) 20.0 ppb (15) 0.13 ppb (1) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 26, 2020, 8 a.m. 4.3 ppb (4) -0.5 ppb (0) 3.9 ppb (4) 5.0 ppb (5) 3.1 ppb (3) 0.0 ppb (0) 20.0 ppb (15) 0.13 ppb (1) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 26, 2020, 7 a.m. 3.7 ppb (3) -0.3 ppb (0) 3.2 ppb (3) 4.0 ppb (4) 2.4 ppb (2) 0.0 ppb (0) 22.0 ppb (17) 0.12 ppb (1) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 26, 2020, 6 a.m. 8.8 ppb (8) 0.7 ppb (1) 6.6 ppb (6) 8.0 ppb (7) 4.8 ppb (4) 0.0 ppb (0) 21.0 ppb (16) 0.17 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 26, 2020, 5 a.m. 13.7 ppb (13) 1.1 ppb (1) 11.6 ppb (11) 13.0 ppb (12) 8.9 ppb (8) 0.0 ppb (0) 16.0 ppb (12) 0.25 ppb (3) N/A 17.0 μg/m3 (61) 61.0
 
Sept. 26, 2020, 4 a.m. 9.6 ppb (9) 0.1 ppb (0) 8.7 ppb (8) 10.0 ppb (9) 7.0 ppb (6) 0.0 ppb (0) 21.0 ppb (16) 0.25 ppb (3) N/A 14.0 μg/m3 (54) 54.0
 
Sept. 26, 2020, 3 a.m. 8.8 ppb (8) -0.4 ppb (0) 8.4 ppb (8) 9.0 ppb (8) 7.2 ppb (7) 0.0 ppb (0) 24.0 ppb (18) 0.24 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 26, 2020, 2 a.m. 9.1 ppb (8) -0.3 ppb (0) 8.0 ppb (7) 9.0 ppb (8) 6.8 ppb (6) 0.0 ppb (0) 28.0 ppb (22) 0.24 ppb (3) N/A 14.0 μg/m3 (54) 54.0
 
Sept. 26, 2020, 1 a.m. 9.7 ppb (9) -0.4 ppb (0) 9.2 ppb (9) 10.0 ppb (9) 7.9 ppb (7) 0.0 ppb (0) 28.0 ppb (22) 0.32 ppb (4) N/A 15.0 μg/m3 (56) 56.0
 
Sept. 26, 2020, midnight 6.2 ppb (6) -0.2 ppb (0) 5.7 ppb (5) 6.0 ppb (6) 4.7 ppb (4) 0.0 ppb (0) 34.0 ppb (26) 0.21 ppb (2) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 25, 2020, 11 p.m. 6.3 ppb (6) -0.2 ppb (0) 6.0 ppb (6) 6.0 ppb (6) 4.8 ppb (4) 0.0 ppb (0) 36.0 ppb (28) 0.21 ppb (2) N/A 14.0 μg/m3 (54) 54.0
 
Sept. 25, 2020, 10 p.m. 4.6 ppb (4) 0.0 ppb (0) 4.3 ppb (4) 5.0 ppb (5) 3.3 ppb (3) 0.0 ppb (0) 39.0 ppb (30) 0.19 ppb (2) N/A 13.0 μg/m3 (52) 52.0
 
Sept. 25, 2020, 9 p.m. 3.2 ppb (3) -0.1 ppb (0) 2.9 ppb (3) 3.0 ppb (3) 2.2 ppb (2) 0.0 ppb (0) 41.0 ppb (32) 0.18 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 25, 2020, 8 p.m. 2.2 ppb (2) -0.1 ppb (0) 1.8 ppb (2) 2.0 ppb (2) 1.3 ppb (1) 0.0 ppb (0) 42.0 ppb (32) 0.14 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 25, 2020, 7 p.m. 2.2 ppb (2) 0.1 ppb (0) 1.8 ppb (2) 2.0 ppb (2) 1.0 ppb (1) 0.0 ppb (0) 41.0 ppb (32) 0.12 ppb (1) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 25, 2020, 6 p.m. 3.1 ppb (3) 0.2 ppb (0) 2.8 ppb (3) 3.0 ppb (3) 1.6 ppb (1) 0.0 ppb (0) 41.0 ppb (32) 0.12 ppb (1) N/A 5.0 μg/m3 (21) 32.0
 
Sept. 25, 2020, 5 p.m. 6.0 ppb (6) 1.2 ppb (1) 5.8 ppb (5) 5.0 ppb (5) 3.3 ppb (3) 0.0 ppb (0) 34.0 ppb (26) 0.13 ppb (1) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 25, 2020, 4 p.m. 10.3 ppb (10) 2.4 ppb (2) 10.1 ppb (9) 8.0 ppb (7) 5.8 ppb (5) 0.0 ppb (0) 26.0 ppb (20) 0.17 ppb (2) N/A 14.0 μg/m3 (54) 54.0
 
Sept. 25, 2020, 3 p.m. 22.7 ppb (21) 8.9 ppb (8) 20.9 ppb (19) 14.0 ppb (13) 10.4 ppb (10) 0.0 ppb (0) 16.0 ppb (12) 0.23 ppb (3) N/A 13.0 μg/m3 (52) 52.0
 
Sept. 25, 2020, 2 p.m. 29.7 ppb (28) 9.9 ppb (9) 27.3 ppb (25) 20.0 ppb (19) 15.2 ppb (14) 0.0 ppb (0) 8.0 ppb (6) 0.26 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 25, 2020, 1 p.m. 30.3 ppb (28) 8.9 ppb (8) 26.8 ppb (25) 21.0 ppb (19) 16.3 ppb (15) 0.0 ppb (0) 6.0 ppb (5) 0.3 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 25, 2020, noon 24.9 ppb (23) 5.5 ppb (5) 22.1 ppb (20) 19.0 ppb (18) 15.0 ppb (14) 0.0 ppb (0) 6.0 ppb (5) 0.27 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 25, 2020, 11 a.m. 20.3 ppb (19) 1.9 ppb (2) 20.1 ppb (19) 18.0 ppb (17) 14.9 ppb (14) 0.0 ppb (0) 5.0 ppb (4) 0.22 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 25, 2020, 10 a.m. 14.7 ppb (14) 0.9 ppb (1) 14.1 ppb (13) 14.0 ppb (13) 11.0 ppb (10) 0.0 ppb (0) 6.0 ppb (5) 0.17 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 25, 2020, 9 a.m. 13.5 ppb (12) 1.3 ppb (1) 11.8 ppb (11) 12.0 ppb (11) 8.9 ppb (8) 0.0 ppb (0) 9.0 ppb (7) 0.18 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 25, 2020, 8 a.m. 19.4 ppb (18) 2.6 ppb (2) 17.7 ppb (16) 17.0 ppb (16) 12.8 ppb (12) 0.0 ppb (0) 5.0 ppb (4) 0.23 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 25, 2020, 7 a.m. 32.0 ppb (30) 9.8 ppb (9) 26.5 ppb (25) 22.0 ppb (20) 16.7 ppb (15) 0.0 ppb (0) 3.0 ppb (2) 0.31 ppb (3) N/A 6.0 μg/m3 (25) 30.0
 
Sept. 25, 2020, 6 a.m. 42.5 ppb (39) 16.8 ppb (16) 33.3 ppb (31) 26.0 ppb (24) 20.3 ppb (19) 0.0 ppb (0) 3.0 ppb (2) 0.31 ppb (3) N/A 7.0 μg/m3 (29) 39.0
 
Sept. 25, 2020, 5 a.m. 21.8 ppb (20) 2.7 ppb (3) 19.9 ppb (18) 19.0 ppb (18) 14.9 ppb (14) 0.0 ppb (0) 11.0 ppb (8) 0.25 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 25, 2020, 4 a.m. 12.9 ppb (12) 0.1 ppb (0) 12.6 ppb (12) 13.0 ppb (12) 10.5 ppb (10) 0.0 ppb (0) 19.0 ppb (15) 0.21 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 25, 2020, 3 a.m. 10.6 ppb (10) -0.1 ppb (0) 9.1 ppb (8) 11.0 ppb (10) 7.8 ppb (7) 0.0 ppb (0) 26.0 ppb (20) 0.17 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 25, 2020, 2 a.m. 10.2 ppb (9) -0.4 ppb (0) 9.2 ppb (9) 11.0 ppb (10) 7.9 ppb (7) 0.0 ppb (0) 27.0 ppb (21) 0.17 ppb (2) N/A 4.0 μg/m3 (17) 21.0
 
Sept. 25, 2020, 1 a.m. 4.6 ppb (4) -0.4 ppb (0) 4.0 ppb (4) 5.0 ppb (5) 3.3 ppb (3) 0.0 ppb (0) 33.0 ppb (25) 0.14 ppb (2) N/A 5.0 μg/m3 (21) 25.0
 
Sept. 25, 2020, midnight 2.4 ppb (2) -0.5 ppb (0) 2.2 ppb (2) 3.0 ppb (3) 1.7 ppb (2) 0.0 ppb (0) 37.0 ppb (28) 0.13 ppb (1) N/A 6.0 μg/m3 (25) 28.0
 
Sept. 24, 2020, 11 p.m. 1.9 ppb (2) -0.2 ppb (0) 1.4 ppb (1) 2.0 ppb (2) 0.9 ppb (1) 0.0 ppb (0) 37.0 ppb (28) 0.13 ppb (1) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 24, 2020, 10 p.m. 1.8 ppb (2) -0.2 ppb (0) 1.1 ppb (1) 2.0 ppb (2) 0.6 ppb (1) 0.0 ppb (0) 38.0 ppb (29) 0.13 ppb (1) N/A 6.0 μg/m3 (25) 29.0
 
Sept. 24, 2020, 9 p.m. 0.7 ppb (1) -0.4 ppb (0) 0.4 ppb (0) 1.0 ppb (1) 0.0 ppb (0) 0.0 ppb (0) 39.0 ppb (30) 0.11 ppb (1) N/A 4.0 μg/m3 (17) 30.0
 
Sept. 24, 2020, 8 p.m. 1.0 ppb (1) -0.2 ppb (0) 0.8 ppb (1) 1.0 ppb (1) 0.1 ppb (0) 0.0 ppb (0) 38.0 ppb (29) 0.11 ppb (1) N/A 6.0 μg/m3 (25) 29.0
 
Sept. 24, 2020, 7 p.m. 1.6 ppb (1) 0.1 ppb (0) 1.2 ppb (1) 2.0 ppb (2) 0.5 ppb (0) 0.0 ppb (0) 37.0 ppb (28) 0.13 ppb (1) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 24, 2020, 6 p.m. 2.3 ppb (2) -0.1 ppb (0) 2.1 ppb (2) 2.0 ppb (2) 1.3 ppb (1) 0.0 ppb (0) 36.0 ppb (28) 0.23 ppb (3) N/A 29.0 μg/m3 (86) 86.0
 
Sept. 24, 2020, 5 p.m. 8.8 ppb (8) 1.4 ppb (1) 7.9 ppb (7) 7.0 ppb (6) 5.3 ppb (5) 0.0 ppb (0) 31.0 ppb (24) 0.31 ppb (3) N/A 37.0 μg/m3 (104) 104.0
 
Sept. 24, 2020, 4 p.m. 65.5 ppb (62) 33.3 ppb (31) 60.0 ppb (56) 32.0 ppb (30) 25.1 ppb (23) 1.0 ppb (1) 9.0 ppb (7) 0.66 ppb (7) N/A 43.0 μg/m3 (119) 119.0
 
Sept. 24, 2020, 3 p.m. 67.6 ppb (64) 32.3 ppb (30) 64.4 ppb (61) 35.0 ppb (32) 28.6 ppb (26) 1.0 ppb (1) 3.0 ppb (2) 0.58 ppb (6) N/A 41.0 μg/m3 (114) 114.0
 
Sept. 24, 2020, 2 p.m. 54.4 ppb (50) 20.3 ppb (19) 53.5 ppb (50) 34.0 ppb (31) 27.8 ppb (26) 1.0 ppb (1) 3.0 ppb (2) 0.51 ppb (6) N/A 31.0 μg/m3 (90) 90.0
 
Sept. 24, 2020, 1 p.m. 42.4 ppb (39) 11.2 ppb (10) 41.4 ppb (38) 31.0 ppb (29) 25.8 ppb (24) 1.0 ppb (1) 4.0 ppb (3) 0.42 ppb (5) N/A 32.0 μg/m3 (93) 93.0
 
Sept. 24, 2020, noon 25.8 ppb (24) 3.2 ppb (3) 22.3 ppb (21) 23.0 ppb (21) 17.1 ppb (16) 0.0 ppb (0) 12.0 ppb (9) 0.33 ppb (4) N/A 33.0 μg/m3 (95) 95.0
 
Sept. 24, 2020, 11 a.m. 14.8 ppb (14) 0.3 ppb (0) 13.7 ppb (13) 14.0 ppb (13) 11.2 ppb (10) 0.0 ppb (0) 21.0 ppb (16) 0.27 ppb (3) N/A 26.0 μg/m3 (80) 80.0
 
Sept. 24, 2020, 10 a.m. 14.1 ppb (13) -0.2 ppb (0) 11.1 ppb (10) 14.0 ppb (13) 9.4 ppb (9) 0.0 ppb (0) 24.0 ppb (18) 0.25 ppb (3) N/A 31.0 μg/m3 (90) 90.0
 
Sept. 24, 2020, 9 a.m. 4.2 ppb (4) -0.2 ppb (0) 4.4 ppb (4) 4.0 ppb (4) 3.8 ppb (4) 0.0 ppb (0) 32.0 ppb (25) 0.21 ppb (2) N/A 25.0 μg/m3 (78) 78.0
 
Sept. 24, 2020, 8 a.m. 5.2 ppb (5) -0.2 ppb (0) 4.0 ppb (4) 5.0 ppb (5) 3.3 ppb (3) 0.0 ppb (0) 32.0 ppb (25) 0.22 ppb (2) N/A 24.0 μg/m3 (76) 76.0
 
Sept. 24, 2020, 7 a.m. 3.4 ppb (3) -0.2 ppb (0) 2.8 ppb (3) 4.0 ppb (4) 2.2 ppb (2) 0.0 ppb (0) 39.0 ppb (30) 0.2 ppb (2) N/A 29.0 μg/m3 (86) 86.0
 
Sept. 24, 2020, 6 a.m. 4.8 ppb (4) -0.2 ppb (0) 3.6 ppb (3) 5.0 ppb (5) 2.9 ppb (3) 0.0 ppb (0) 38.0 ppb (29) 0.21 ppb (2) N/A 27.0 μg/m3 (82) 82.0
 
Sept. 24, 2020, 5 a.m. 7.1 ppb (7) -0.3 ppb (0) 6.2 ppb (6) 7.0 ppb (6) 5.1 ppb (5) 0.0 ppb (0) 33.0 ppb (25) 0.24 ppb (3) N/A 25.0 μg/m3 (78) 78.0
 
Sept. 24, 2020, 4 a.m. 6.3 ppb (6) -0.3 ppb (0) 5.5 ppb (5) 7.0 ppb (6) 4.5 ppb (4) 0.0 ppb (0) 42.0 ppb (32) 0.23 ppb (3) N/A 26.0 μg/m3 (80) 80.0
 
Sept. 24, 2020, 3 a.m. 12.0 ppb (11) -0.4 ppb (0) 10.6 ppb (10) 12.0 ppb (11) 8.9 ppb (8) 0.0 ppb (0) 38.0 ppb (29) 0.28 ppb (3) N/A 27.0 μg/m3 (82) 82.0
 
Sept. 24, 2020, 2 a.m. 16.8 ppb (16) -0.1 ppb (0) 14.7 ppb (14) 17.0 ppb (16) 12.8 ppb (12) 0.0 ppb (0) 34.0 ppb (26) 0.3 ppb (3) N/A 31.0 μg/m3 (90) 90.0
 
Sept. 24, 2020, 1 a.m. 25.5 ppb (24) 0.2 ppb (0) 22.6 ppb (21) 25.0 ppb (23) 19.5 ppb (18) 0.0 ppb (0) 26.0 ppb (20) 0.38 ppb (4) N/A 28.0 μg/m3 (84) 84.0
 
Sept. 24, 2020, midnight 15.8 ppb (15) 0.1 ppb (0) 15.7 ppb (15) 16.0 ppb (15) 13.0 ppb (12) 0.0 ppb (0) 36.0 ppb (28) 0.3 ppb (3) N/A N/A 28.0
 
Sept. 23, 2020, 11 p.m. 8.6 ppb (8) 0.5 ppb (0) 8.4 ppb (8) 8.0 ppb (7) 6.5 ppb (6) 0.0 ppb (0) 46.0 ppb (35) 0.23 ppb (3) N/A 23.0 μg/m3 (73) 73.0
 
Sept. 23, 2020, 10 p.m. 4.7 ppb (4) 0.4 ppb (0) 4.5 ppb (4) 4.0 ppb (4) 3.4 ppb (3) 0.0 ppb (0) 50.0 ppb (38) 0.19 ppb (2) N/A 19.0 μg/m3 (65) 65.0
 
Sept. 23, 2020, 9 p.m. 5.3 ppb (5) 0.6 ppb (1) 4.7 ppb (4) 5.0 ppb (5) 3.2 ppb (3) 0.0 ppb (0) 49.0 ppb (38) 0.2 ppb (2) N/A 20.0 μg/m3 (67) 67.0
 
Sept. 23, 2020, 8 p.m. 2.5 ppb (2) -0.2 ppb (0) 2.6 ppb (2) 3.0 ppb (3) 1.9 ppb (2) 0.0 ppb (0) 54.0 ppb (42) 0.23 ppb (3) N/A 24.0 μg/m3 (76) 76.0
 
Sept. 23, 2020, 7 p.m. N/A N/A 2.9 ppb (3) N/A 1.9 ppb (2) 0.0 ppb (0) 53.0 ppb (41) 0.27 ppb (3) N/A 33.0 μg/m3 (95) 95.0
 
Sept. 23, 2020, 6 p.m. N/A N/A 3.8 ppb (4) N/A 2.4 ppb (2) 0.0 ppb (0) 51.0 ppb (39) 0.3 ppb (3) N/A 35.0 μg/m3 (99) 99.0
 
Sept. 23, 2020, 5 p.m. N/A N/A 8.9 ppb (8) N/A 6.0 ppb (6) 0.0 ppb (0) 42.0 ppb (32) 0.4 ppb (4) N/A 59.0 μg/m3 (152) 152.0
 
Sept. 23, 2020, 4 p.m. N/A N/A 11.2 ppb (10) N/A 7.5 ppb (7) 0.0 ppb (0) 35.0 ppb (27) 0.42 ppb (5) N/A 53.0 μg/m3 (144) 144.0
 
Sept. 23, 2020, 3 p.m. N/A N/A 20.3 ppb (19) N/A 13.4 ppb (12) 0.0 ppb (0) 24.0 ppb (18) 0.45 ppb (5) N/A 53.0 μg/m3 (144) 144.0
 
Sept. 23, 2020, 2 p.m. 26.0 ppb (24) 2.6 ppb (2) 24.8 ppb (23) 23.0 ppb (21) 18.6 ppb (17) 0.0 ppb (0) 18.0 ppb (14) 0.59 ppb (7) N/A 61.0 μg/m3 (153) 153.0
 
Sept. 23, 2020, 1 p.m. 16.7 ppb (15) 1.1 ppb (1) 14.6 ppb (14) 16.0 ppb (15) 11.3 ppb (10) 0.0 ppb (0) 26.0 ppb (20) 0.49 ppb (5) N/A 54.0 μg/m3 (146) 146.0
 
Sept. 23, 2020, noon 16.2 ppb (15) 0.1 ppb (0) 14.8 ppb (14) 16.0 ppb (15) 12.0 ppb (11) 0.0 ppb (0) 24.0 ppb (18) 0.45 ppb (5) N/A 52.0 μg/m3 (141) 141.0
 
Sept. 23, 2020, 11 a.m. 19.3 ppb (18) 0.9 ppb (1) 18.9 ppb (18) 18.0 ppb (17) 15.1 ppb (14) 0.0 ppb (0) 16.0 ppb (12) 0.47 ppb (5) N/A 58.0 μg/m3 (151) 151.0
 
Sept. 23, 2020, 10 a.m. 14.1 ppb (13) -0.1 ppb (0) 14.7 ppb (14) 14.0 ppb (13) 12.3 ppb (11) 0.0 ppb (0) 18.0 ppb (14) 0.43 ppb (5) N/A 55.0 μg/m3 (149) 149.0
 
Sept. 23, 2020, 9 a.m. 11.6 ppb (11) 0.0 ppb (0) 8.1 ppb (8) 12.0 ppb (11) 6.8 ppb (6) 0.0 ppb (0) 27.0 ppb (21) 0.42 ppb (5) N/A 59.0 μg/m3 (152) 152.0
 
Sept. 23, 2020, 8 a.m. 15.2 ppb (14) 0.1 ppb (0) 12.4 ppb (11) 15.0 ppb (14) 10.2 ppb (9) 0.0 ppb (0) 25.0 ppb (19) 0.42 ppb (5) N/A 55.0 μg/m3 (149) 149.0
 
Sept. 23, 2020, 7 a.m. 14.4 ppb (13) -0.2 ppb (0) 13.2 ppb (12) 15.0 ppb (14) 11.2 ppb (10) 0.0 ppb (0) 23.0 ppb (18) 0.46 ppb (5) N/A 56.0 μg/m3 (150) 150.0
 
Sept. 23, 2020, 6 a.m. 25.7 ppb (24) 1.2 ppb (1) 22.8 ppb (21) 24.0 ppb (22) 18.4 ppb (17) 0.0 ppb (0) 15.0 ppb (12) 0.53 ppb (6) N/A 59.0 μg/m3 (152) 152.0
 
Sept. 23, 2020, 5 a.m. 27.6 ppb (26) 0.7 ppb (1) 28.1 ppb (26) 27.0 ppb (25) 23.2 ppb (21) 0.0 ppb (0) 11.0 ppb (8) 0.58 ppb (6) N/A 51.0 μg/m3 (139) 139.0
 
Sept. 23, 2020, 4 a.m. 30.0 ppb (28) 2.0 ppb (2) 27.9 ppb (26) 28.0 ppb (26) 22.2 ppb (21) 0.0 ppb (0) 9.0 ppb (7) 0.7 ppb (8) N/A 54.0 μg/m3 (146) 146.0
 
Sept. 23, 2020, 3 a.m. 54.3 ppb (50) 16.7 ppb (15) 42.7 ppb (40) 38.0 ppb (35) 29.5 ppb (27) 1.0 ppb (1) 4.0 ppb (3) 0.83 ppb (9) N/A 51.0 μg/m3 (139) 139.0
 
Sept. 23, 2020, 2 a.m. 41.8 ppb (39) 5.7 ppb (5) 39.9 ppb (37) 36.0 ppb (33) 30.2 ppb (28) 1.0 ppb (1) 10.0 ppb (8) 0.79 ppb (9) N/A 45.0 μg/m3 (124) 124.0
 
Sept. 23, 2020, 1 a.m. 41.2 ppb (38) 8.1 ppb (8) 41.7 ppb (39) 33.0 ppb (31) 30.4 ppb (28) 1.0 ppb (1) 14.0 ppb (11) 0.72 ppb (8) N/A 48.0 μg/m3 (131) 131.0
 
Sept. 23, 2020, midnight 3.5 ppb (3) -0.5 ppb (0) 3.7 ppb (3) 4.0 ppb (4) 3.0 ppb (3) 0.0 ppb (0) 48.0 ppb (37) 0.42 ppb (5) N/A 43.0 μg/m3 (119) 119.0
 
Sept. 22, 2020, 11 p.m. 1.9 ppb (2) -0.3 ppb (0) 1.7 ppb (2) 2.0 ppb (2) 1.3 ppb (1) 0.0 ppb (0) 51.0 ppb (39) 0.38 ppb (4) N/A 43.0 μg/m3 (119) 119.0
 
Sept. 22, 2020, 10 p.m. 2.5 ppb (2) -0.4 ppb (0) 2.6 ppb (2) 3.0 ppb (3) 1.8 ppb (2) 0.0 ppb (0) 49.0 ppb (38) 0.3 ppb (3) N/A 31.0 μg/m3 (90) 90.0
 
Sept. 22, 2020, 9 p.m. 2.5 ppb (2) 0.1 ppb (0) 2.3 ppb (2) 2.0 ppb (2) 1.6 ppb (1) 0.0 ppb (0) 47.0 ppb (36) 0.3 ppb (3) N/A 24.0 μg/m3 (76) 76.0
 
Sept. 22, 2020, 8 p.m. 3.2 ppb (3) 0.0 ppb (0) 3.2 ppb (3) 3.0 ppb (3) 2.3 ppb (2) 0.0 ppb (0) 45.0 ppb (35) 0.3 ppb (3) N/A 23.0 μg/m3 (73) 73.0
 
Sept. 22, 2020, 7 p.m. 10.3 ppb (10) 1.8 ppb (2) 10.1 ppb (9) 9.0 ppb (8) 6.8 ppb (6) 0.0 ppb (0) 38.0 ppb (29) 0.32 ppb (4) N/A 24.0 μg/m3 (76) 76.0
 
Sept. 22, 2020, 6 p.m. 11.1 ppb (10) 2.3 ppb (2) 10.6 ppb (10) 9.0 ppb (8) 6.8 ppb (6) 0.0 ppb (0) 35.0 ppb (27) 0.28 ppb (3) N/A 18.0 μg/m3 (63) 63.0
 
Sept. 22, 2020, 5 p.m. 17.7 ppb (16) 4.5 ppb (4) 16.5 ppb (15) 13.0 ppb (12) 10.0 ppb (9) 0.0 ppb (0) 29.0 ppb (22) 0.3 ppb (3) N/A 18.0 μg/m3 (63) 63.0
 
Sept. 22, 2020, 4 p.m. 20.5 ppb (19) 5.1 ppb (5) 18.9 ppb (18) 15.0 ppb (14) 11.8 ppb (11) 0.0 ppb (0) 22.0 ppb (17) 0.29 ppb (3) N/A 17.0 μg/m3 (61) 61.0
 
Sept. 22, 2020, 3 p.m. 48.3 ppb (45) 18.0 ppb (17) 44.3 ppb (41) 30.0 ppb (28) 24.0 ppb (22) 1.0 ppb (1) 10.0 ppb (8) 0.36 ppb (4) N/A 13.0 μg/m3 (52) 52.0
 
Sept. 22, 2020, 2 p.m. 66.7 ppb (64) 28.6 ppb (26) 63.8 ppb (60) 38.0 ppb (35) 31.5 ppb (29) 1.0 ppb (1) 3.0 ppb (2) 0.55 ppb (6) N/A 16.0 μg/m3 (59) 64.0
 
Sept. 22, 2020, 1 p.m. 60.2 ppb (57) 22.5 ppb (21) 59.9 ppb (56) 38.0 ppb (35) 31.3 ppb (29) 1.0 ppb (1) 2.0 ppb (2) 0.54 ppb (6) N/A 17.0 μg/m3 (61) 61.0
 
Sept. 22, 2020, noon 28.7 ppb (27) 3.7 ppb (3) 27.3 ppb (25) 25.0 ppb (23) 19.6 ppb (18) 0.0 ppb (0) 12.0 ppb (9) 0.33 ppb (4) N/A 14.0 μg/m3 (54) 54.0
 
Sept. 22, 2020, 11 a.m. 17.7 ppb (16) 0.8 ppb (1) 17.0 ppb (16) 17.0 ppb (16) 13.7 ppb (13) 0.0 ppb (0) 18.0 ppb (14) 0.25 ppb (3) N/A 15.0 μg/m3 (56) 56.0
 
Sept. 22, 2020, 10 a.m. 10.4 ppb (10) 0.0 ppb (0) 8.3 ppb (8) 10.0 ppb (9) 7.0 ppb (6) 0.0 ppb (0) 26.0 ppb (20) 0.17 ppb (2) N/A 13.0 μg/m3 (52) 52.0
 
Sept. 22, 2020, 9 a.m. 6.1 ppb (6) -0.1 ppb (0) 5.4 ppb (5) 6.0 ppb (6) 4.4 ppb (4) 0.0 ppb (0) 32.0 ppb (25) 0.18 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 22, 2020, 8 a.m. 4.8 ppb (4) -0.2 ppb (0) 3.2 ppb (3) 5.0 ppb (5) 2.6 ppb (2) 0.0 ppb (0) 42.0 ppb (32) 0.17 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 22, 2020, 7 a.m. 5.3 ppb (5) 0.0 ppb (0) 4.0 ppb (4) 5.0 ppb (5) 3.2 ppb (3) 0.0 ppb (0) 43.0 ppb (33) 0.17 ppb (2) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 22, 2020, 6 a.m. 3.9 ppb (4) -0.3 ppb (0) 3.1 ppb (3) 4.0 ppb (4) 2.5 ppb (2) 0.0 ppb (0) 47.0 ppb (36) 0.17 ppb (2) N/A 8.0 μg/m3 (33) 36.0
 
Sept. 22, 2020, 5 a.m. 5.2 ppb (5) -0.4 ppb (0) 4.7 ppb (4) 6.0 ppb (6) 3.9 ppb (4) 0.0 ppb (0) 46.0 ppb (35) 0.2 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 22, 2020, 4 a.m. 15.5 ppb (14) -0.2 ppb (0) 13.0 ppb (12) 16.0 ppb (15) 10.9 ppb (10) 0.0 ppb (0) 34.0 ppb (26) 0.29 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 22, 2020, 3 a.m. 32.3 ppb (30) 2.3 ppb (2) 24.3 ppb (23) 30.0 ppb (28) 20.3 ppb (19) 0.0 ppb (0) 22.0 ppb (17) 0.41 ppb (5) N/A 16.0 μg/m3 (59) 59.0
 
Sept. 22, 2020, 2 a.m. 48.0 ppb (44) 12.4 ppb (11) 43.0 ppb (40) 36.0 ppb (33) 30.2 ppb (28) 0.0 ppb (0) 15.0 ppb (12) 0.57 ppb (6) N/A 17.0 μg/m3 (61) 61.0
 
Sept. 22, 2020, 1 a.m. 7.0 ppb (6) -0.1 ppb (0) 7.5 ppb (7) 7.0 ppb (6) 6.5 ppb (6) 0.0 ppb (0) 53.0 ppb (41) 0.28 ppb (3) N/A 14.0 μg/m3 (54) 54.0
 
Sept. 22, 2020, midnight 7.5 ppb (7) 0.3 ppb (0) 6.6 ppb (6) 7.0 ppb (6) 5.3 ppb (5) 0.0 ppb (0) 56.0 ppb (43) 0.25 ppb (3) N/A 13.0 μg/m3 (52) 52.0
 
Sept. 21, 2020, 11 p.m. 4.4 ppb (4) 0.3 ppb (0) 3.6 ppb (3) 4.0 ppb (4) 2.6 ppb (2) 0.0 ppb (0) 60.0 ppb (46) 0.23 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 21, 2020, 10 p.m. 3.3 ppb (3) 0.1 ppb (0) 2.7 ppb (3) 3.0 ppb (3) 1.7 ppb (2) 0.0 ppb (0) 61.0 ppb (47) 0.22 ppb (2) N/A 10.0 μg/m3 (42) 47.0
 
Sept. 21, 2020, 9 p.m. 4.8 ppb (4) 0.6 ppb (1) 4.0 ppb (4) 4.0 ppb (4) 2.7 ppb (3) 0.0 ppb (0) 58.0 ppb (45) 0.24 ppb (3) N/A 14.0 μg/m3 (54) 54.0
 
Sept. 21, 2020, 8 p.m. 3.8 ppb (4) 0.4 ppb (0) 3.3 ppb (3) 3.0 ppb (3) 2.1 ppb (2) 0.0 ppb (0) 56.0 ppb (43) 0.26 ppb (3) N/A 17.0 μg/m3 (61) 61.0
 
Sept. 21, 2020, 7 p.m. 4.8 ppb (4) 0.7 ppb (1) 4.3 ppb (4) 4.0 ppb (4) 2.7 ppb (3) 0.0 ppb (0) 49.0 ppb (38) 0.26 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 21, 2020, 6 p.m. 4.3 ppb (4) 0.8 ppb (1) 3.8 ppb (4) 3.0 ppb (3) 2.4 ppb (2) 0.0 ppb (0) 41.0 ppb (32) 0.24 ppb (3) N/A 16.0 μg/m3 (59) 59.0
 
Sept. 21, 2020, 5 p.m. 5.8 ppb (5) 1.3 ppb (1) 5.3 ppb (5) 4.0 ppb (4) 3.0 ppb (3) 0.0 ppb (0) 33.0 ppb (25) 0.25 ppb (3) N/A 16.0 μg/m3 (59) 59.0
 
Sept. 21, 2020, 4 p.m. 8.0 ppb (7) 2.4 ppb (2) 7.2 ppb (7) 6.0 ppb (6) 3.8 ppb (4) 0.0 ppb (0) 28.0 ppb (22) 0.25 ppb (3) N/A 14.0 μg/m3 (54) 54.0
 
Sept. 21, 2020, 3 p.m. 11.2 ppb (10) 2.8 ppb (3) 9.3 ppb (9) 8.0 ppb (7) 5.3 ppb (5) 0.0 ppb (0) 24.0 ppb (18) 0.24 ppb (3) N/A 17.0 μg/m3 (61) 61.0
 
Sept. 21, 2020, 2 p.m. 44.2 ppb (41) 22.8 ppb (21) 33.7 ppb (31) 21.0 ppb (19) 15.5 ppb (14) 1.0 ppb (1) 11.0 ppb (8) 0.58 ppb (6) N/A 13.0 μg/m3 (52) 52.0
 
Sept. 21, 2020, 1 p.m. 28.8 ppb (27) 7.5 ppb (7) 28.5 ppb (26) 21.0 ppb (19) 18.6 ppb (17) 0.0 ppb (0) 10.0 ppb (8) 0.35 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 21, 2020, noon 12.7 ppb (12) 1.2 ppb (1) 10.3 ppb (10) 11.0 ppb (10) 7.5 ppb (7) 0.0 ppb (0) 21.0 ppb (16) 0.27 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 21, 2020, 11 a.m. 6.6 ppb (6) 0.0 ppb (0) 5.6 ppb (5) 7.0 ppb (6) 4.2 ppb (4) 0.0 ppb (0) 26.0 ppb (20) 0.22 ppb (2) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 21, 2020, 10 a.m. 4.7 ppb (4) -0.2 ppb (0) 3.5 ppb (3) 5.0 ppb (5) 2.8 ppb (3) 0.0 ppb (0) 29.0 ppb (22) 0.21 ppb (2) N/A 16.0 μg/m3 (59) 59.0
 
Sept. 21, 2020, 9 a.m. 3.6 ppb (3) -0.2 ppb (0) 2.7 ppb (3) 4.0 ppb (4) 2.2 ppb (2) 0.0 ppb (0) 30.0 ppb (23) 0.2 ppb (2) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 21, 2020, 1 a.m. 3.5 ppb (3) -0.1 ppb (0) 3.1 ppb (3) 4.0 ppb (4) 2.5 ppb (2) 0.0 ppb (0) 40.0 ppb (31) 0.26 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 21, 2020, midnight 1.7 ppb (2) 0.0 ppb (0) 1.1 ppb (1) 2.0 ppb (2) 0.8 ppb (1) 0.0 ppb (0) 45.0 ppb (35) 0.24 ppb (3) N/A 7.0 μg/m3 (29) 35.0
 
Sept. 20, 2020, 11 p.m. 1.2 ppb (1) -0.2 ppb (0) 0.6 ppb (1) 1.0 ppb (1) 0.4 ppb (0) 0.0 ppb (0) 48.0 ppb (37) 0.23 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 20, 2020, 10 p.m. 1.0 ppb (1) -0.2 ppb (0) 0.4 ppb (0) 1.0 ppb (1) 0.2 ppb (0) 0.0 ppb (0) 46.0 ppb (35) 0.23 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 20, 2020, 9 p.m. 0.8 ppb (1) -0.2 ppb (0) 0.3 ppb (0) 1.0 ppb (1) 0.0 ppb (0) 0.0 ppb (0) 43.0 ppb (33) 0.22 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 20, 2020, 8 p.m. 0.8 ppb (1) -0.3 ppb (0) 0.4 ppb (0) 1.0 ppb (1) 0.1 ppb (0) 0.0 ppb (0) 42.0 ppb (32) 0.22 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 20, 2020, 7 p.m. 1.7 ppb (2) 0.0 ppb (0) 1.0 ppb (1) 2.0 ppb (2) 0.6 ppb (1) 0.0 ppb (0) 43.0 ppb (33) 0.23 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 20, 2020, 6 p.m. 3.0 ppb (3) 0.3 ppb (0) 2.1 ppb (2) 3.0 ppb (3) 1.2 ppb (1) 0.0 ppb (0) 39.0 ppb (30) 0.24 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 20, 2020, 5 p.m. 3.5 ppb (3) 0.5 ppb (0) 2.9 ppb (3) 3.0 ppb (3) 1.6 ppb (1) 0.0 ppb (0) 32.0 ppb (25) 0.23 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 20, 2020, 4 p.m. 4.2 ppb (4) 0.8 ppb (1) 3.8 ppb (4) 3.0 ppb (3) 1.8 ppb (2) 0.0 ppb (0) 24.0 ppb (18) 0.23 ppb (3) N/A 13.0 μg/m3 (52) 52.0
 
Sept. 20, 2020, 3 p.m. 7.1 ppb (7) 2.2 ppb (2) 6.2 ppb (6) 5.0 ppb (5) 3.0 ppb (3) 0.0 ppb (0) 17.0 ppb (13) 0.23 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 20, 2020, 2 p.m. 15.2 ppb (14) 5.3 ppb (5) 14.0 ppb (13) 10.0 ppb (9) 7.1 ppb (7) 0.0 ppb (0) 8.0 ppb (6) 0.28 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 20, 2020, 1 p.m. 23.0 ppb (21) 5.7 ppb (5) 21.3 ppb (20) 17.0 ppb (16) 13.1 ppb (12) 0.0 ppb (0) 3.0 ppb (2) 0.31 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 20, 2020, noon 10.9 ppb (10) 0.9 ppb (1) 9.7 ppb (9) 10.0 ppb (9) 7.1 ppb (7) 0.0 ppb (0) 11.0 ppb (8) 0.24 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 20, 2020, 11 a.m. 9.3 ppb (9) 0.0 ppb (0) 7.7 ppb (7) 9.0 ppb (8) 6.3 ppb (6) 0.0 ppb (0) 13.0 ppb (10) 0.24 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 20, 2020, 10 a.m. 9.1 ppb (8) -0.1 ppb (0) 9.5 ppb (9) 9.0 ppb (8) 7.7 ppb (7) 0.0 ppb (0) 12.0 ppb (9) 0.26 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 20, 2020, 9 a.m. 10.1 ppb (9) 0.3 ppb (0) 8.9 ppb (8) 10.0 ppb (9) 7.1 ppb (7) 0.0 ppb (0) 10.0 ppb (8) 0.3 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 20, 2020, 8 a.m. 14.7 ppb (14) 0.6 ppb (1) 12.9 ppb (12) 14.0 ppb (13) 10.0 ppb (9) 0.0 ppb (0) 8.0 ppb (6) 0.34 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 20, 2020, 7 a.m. 17.6 ppb (16) 0.8 ppb (1) 16.5 ppb (15) 17.0 ppb (16) 13.1 ppb (12) 0.0 ppb (0) 7.0 ppb (5) 0.38 ppb (4) N/A 17.0 μg/m3 (61) 61.0
 
Sept. 20, 2020, 6 a.m. 18.7 ppb (17) 1.0 ppb (1) 16.2 ppb (15) 18.0 ppb (17) 12.6 ppb (12) 0.0 ppb (0) 15.0 ppb (12) 0.36 ppb (4) N/A 13.0 μg/m3 (52) 52.0
 
Sept. 20, 2020, 5 a.m. 37.6 ppb (35) 12.0 ppb (11) 31.7 ppb (29) 26.0 ppb (24) 21.2 ppb (20) 0.0 ppb (0) 4.0 ppb (3) 0.61 ppb (7) N/A 14.0 μg/m3 (54) 54.0
 
Sept. 20, 2020, 4 a.m. 26.1 ppb (24) 4.1 ppb (4) 33.3 ppb (31) 22.0 ppb (20) 22.6 ppb (21) 0.0 ppb (0) 6.0 ppb (5) 0.47 ppb (5) N/A 15.0 μg/m3 (56) 56.0
 
Sept. 20, 2020, 3 a.m. 7.3 ppb (7) -0.5 ppb (0) 8.3 ppb (8) 8.0 ppb (7) 7.0 ppb (6) 0.0 ppb (0) 26.0 ppb (20) 0.28 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 20, 2020, 2 a.m. 5.3 ppb (5) -0.6 ppb (0) 4.7 ppb (4) 6.0 ppb (6) 3.8 ppb (4) 0.0 ppb (0) 32.0 ppb (25) 0.26 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 20, 2020, 1 a.m. 2.8 ppb (3) -0.4 ppb (0) 2.3 ppb (2) 3.0 ppb (3) 1.7 ppb (2) 0.0 ppb (0) 35.0 ppb (27) 0.24 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 20, 2020, midnight 1.6 ppb (1) -0.3 ppb (0) 0.9 ppb (1) 2.0 ppb (2) 0.5 ppb (0) 0.0 ppb (0) 38.0 ppb (29) 0.25 ppb (3) N/A 13.0 μg/m3 (52) 52.0
 
Sept. 19, 2020, 11 p.m. 0.6 ppb (1) -0.6 ppb (0) 0.5 ppb (0) 1.0 ppb (1) 0.0 ppb (0) 0.0 ppb (0) 38.0 ppb (29) 0.19 ppb (2) N/A 6.0 μg/m3 (25) 29.0
 
Sept. 19, 2020, 10 p.m. 1.3 ppb (1) -0.3 ppb (0) 0.7 ppb (1) 2.0 ppb (2) 0.2 ppb (0) 0.0 ppb (0) 39.0 ppb (30) 0.25 ppb (3) N/A 7.0 μg/m3 (29) 30.0
 
Sept. 19, 2020, 9 p.m. 0.7 ppb (1) -0.6 ppb (0) 0.5 ppb (0) 1.0 ppb (1) 0.1 ppb (0) 0.0 ppb (0) 39.0 ppb (30) 0.28 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 19, 2020, 8 p.m. 1.4 ppb (1) -0.2 ppb (0) 1.0 ppb (1) 2.0 ppb (2) 0.4 ppb (0) 0.0 ppb (0) 40.0 ppb (31) 0.42 ppb (5) N/A 26.0 μg/m3 (80) 80.0
 
Sept. 19, 2020, 7 p.m. 1.9 ppb (2) -0.3 ppb (0) 1.7 ppb (2) 2.0 ppb (2) 1.0 ppb (1) 0.0 ppb (0) 40.0 ppb (31) 0.55 ppb (6) N/A 41.0 μg/m3 (114) 114.0
 
Sept. 19, 2020, 6 p.m. 3.3 ppb (3) -0.1 ppb (0) 3.2 ppb (3) 3.0 ppb (3) 2.0 ppb (2) 0.0 ppb (0) 39.0 ppb (30) 0.7 ppb (8) N/A 52.0 μg/m3 (141) 141.0
 
Sept. 19, 2020, 5 p.m. 3.8 ppb (4) -0.2 ppb (0) 3.8 ppb (4) 4.0 ppb (4) 2.6 ppb (2) 0.0 ppb (0) 33.0 ppb (25) 0.7 ppb (8) N/A 54.0 μg/m3 (146) 146.0
 
Sept. 19, 2020, 4 p.m. 4.4 ppb (4) -0.2 ppb (0) 4.2 ppb (4) 5.0 ppb (5) 3.1 ppb (3) 0.0 ppb (0) 28.0 ppb (22) 0.69 ppb (8) N/A 59.0 μg/m3 (152) 152.0
 
Sept. 19, 2020, 3 p.m. 8.9 ppb (8) 0.5 ppb (0) 8.5 ppb (8) 8.0 ppb (7) 6.5 ppb (6) 0.0 ppb (0) 23.0 ppb (18) 0.57 ppb (6) N/A 56.0 μg/m3 (150) 150.0
 
Sept. 19, 2020, 2 p.m. 13.6 ppb (13) 0.5 ppb (0) 12.9 ppb (12) 13.0 ppb (12) 10.2 ppb (9) 0.0 ppb (0) 12.0 ppb (9) 0.38 ppb (4) N/A 40.0 μg/m3 (111) 111.0
 
Sept. 19, 2020, 1 p.m. 15.5 ppb (14) -0.1 ppb (0) 13.9 ppb (13) 16.0 ppb (15) 11.7 ppb (11) 0.0 ppb (0) 9.0 ppb (7) 0.3 ppb (3) N/A 34.0 μg/m3 (97) 97.0
 
Sept. 19, 2020, noon 20.6 ppb (19) 2.4 ppb (2) 19.5 ppb (18) 18.0 ppb (17) 14.4 ppb (13) 0.0 ppb (0) 9.0 ppb (7) 0.28 ppb (3) N/A 30.0 μg/m3 (88) 88.0