ID: 1511

AQSQID: 380150003

Site Name: Bismarck Residential

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

Updated: Oct. 30, 2020, 11:39 a.m.

Location: Bismarck (Bismarck Cathedral Area Historic Dist), ND

Reporting: True, Located: True

Current AQI: 55.0

Bismarck (Bismarck Cathedral Area Historic Dist) ND, US: 46.8253, -100.7681

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Oct. 30, 2020, 9 a.m. 6.2 ppb (6) 0.5 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 9.0 ppb (9) 0.15 ppb (2) 18.1 μg/m3 (17) 13.9 μg/m3 (55) 55.0
 
Oct. 30, 2020, 8 a.m. 8.2 ppb (8) 0.8 ppb (1) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 7.0 ppb (7) 0.18 ppb (3) 17.3 μg/m3 (17) 13.4 μg/m3 (54) 54.0
 
Oct. 30, 2020, 7 a.m. 7.6 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 9.0 ppb (9) 0.17 ppb (3) 11.5 μg/m3 (11) 8.7 μg/m3 (37) 37.0
 
Oct. 30, 2020, 6 a.m. 8.9 ppb (9) 1.0 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 5.0 ppb (5) 0.21 ppb (3) 10.4 μg/m3 (10) 8.0 μg/m3 (34) 34.0
 
Oct. 30, 2020, 5 a.m. 7.4 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 8.0 ppb (8) 0.19 ppb (3) 11.6 μg/m3 (11) 7.6 μg/m3 (32) 32.0
 
Oct. 30, 2020, 4 a.m. 10.2 ppb (10) 1.4 ppb (2) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 6.0 ppb (6) 0.24 ppb (3) 9.8 μg/m3 (10) 7.6 μg/m3 (32) 32.0
 
Oct. 30, 2020, 3 a.m. 11.1 ppb (11) 1.2 ppb (2) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 6.0 ppb (6) 0.18 ppb (3) 10.8 μg/m3 (10) 7.9 μg/m3 (33) 33.0
 
Oct. 30, 2020, 2 a.m. 4.4 ppb (5) 0.3 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 12.0 ppb (12) 0.07 ppb (2) 10.5 μg/m3 (10) 7.6 μg/m3 (32) 32.0
 
Oct. 30, 2020, 1 a.m. 3.5 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 14.0 ppb (13) 0.15 ppb (2) 9.8 μg/m3 (10) 7.8 μg/m3 (33) 33.0
 
Oct. 30, 2020, midnight 3.6 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 14.0 ppb (13) 0.16 ppb (3) 10.4 μg/m3 (10) 8.3 μg/m3 (35) 35.0
 
Oct. 29, 2020, 11 p.m. 3.5 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 14.0 ppb (13) 0.16 ppb (3) 12.5 μg/m3 (12) 9.2 μg/m3 (39) 39.0
 
Oct. 29, 2020, 10 p.m. 3.2 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 15.0 ppb (14) 0.17 ppb (3) 11.5 μg/m3 (11) 9.0 μg/m3 (38) 38.0
 
Oct. 29, 2020, 9 p.m. 3.4 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 15.0 ppb (14) 0.16 ppb (3) 11.2 μg/m3 (11) 8.3 μg/m3 (35) 35.0
 
Oct. 29, 2020, 8 p.m. 4.1 ppb (4) 1.2 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 14.0 ppb (13) 0.15 ppb (2) 9.3 μg/m3 (9) 7.1 μg/m3 (30) 30.0
 
Oct. 29, 2020, 7 p.m. 3.8 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 13.0 ppb (13) N/A 8.5 μg/m3 (8) 6.3 μg/m3 (27) 27.0
 
Oct. 29, 2020, 6 p.m. 4.3 ppb (5) 1.2 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 12.0 ppb (12) N/A 8.7 μg/m3 (9) 6.6 μg/m3 (28) 28.0
 
Oct. 29, 2020, 5 p.m. 5.0 ppb (5) 1.7 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 11.0 ppb (11) N/A 11.6 μg/m3 (11) 8.3 μg/m3 (35) 35.0
 
Oct. 29, 2020, 4 p.m. 5.5 ppb (6) 1.6 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 11.0 ppb (11) N/A 14.4 μg/m3 (14) 9.4 μg/m3 (40) 40.0
 
Oct. 29, 2020, 3 p.m. 6.7 ppb (7) 2.2 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 9.0 ppb (9) 0.19 ppb (3) 10.3 μg/m3 (10) 7.5 μg/m3 (32) 32.0
 
Oct. 29, 2020, 2 p.m. 8.2 ppb (8) 2.7 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 8.0 ppb (8) 0.2 ppb (3) 9.8 μg/m3 (10) 6.9 μg/m3 (29) 29.0
 
Oct. 29, 2020, 1 p.m. 28.2 ppb (27) 14.7 ppb (14) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 1.0 ppb (1) 0.28 ppb (4) 12.4 μg/m3 (12) 7.2 μg/m3 (31) 31.0
 
Oct. 29, 2020, noon 15.4 ppb (15) 4.5 ppb (5) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 3.0 ppb (3) 0.23 ppb (3) 10.6 μg/m3 (10) 6.6 μg/m3 (28) 28.0
 
Oct. 29, 2020, 11 a.m. 14.3 ppb (14) 3.2 ppb (4) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 3.0 ppb (3) 0.22 ppb (3) 9.8 μg/m3 (10) 6.5 μg/m3 (28) 28.0
 
Oct. 29, 2020, 10 a.m. 13.2 ppb (13) 3.6 ppb (4) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 6.0 ppb (6) 0.21 ppb (3) 10.0 μg/m3 (10) 6.5 μg/m3 (28) 28.0
 
Oct. 29, 2020, 9 a.m. 5.9 ppb (6) 0.4 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 11.0 ppb (11) 0.19 ppb (3) 9.6 μg/m3 (9) 6.2 μg/m3 (26) 26.0
 
Oct. 29, 2020, 8 a.m. 9.7 ppb (10) 1.0 ppb (1) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 8.0 ppb (8) 0.18 ppb (3) 9.5 μg/m3 (9) 6.4 μg/m3 (27) 27.0
 
Oct. 29, 2020, 7 a.m. 6.9 ppb (7) 0.5 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 12.0 ppb (12) 0.19 ppb (3) 9.5 μg/m3 (9) 6.1 μg/m3 (26) 26.0
 
Oct. 29, 2020, 6 a.m. 5.9 ppb (6) 0.5 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 13.0 ppb (13) 0.19 ppb (3) 9.3 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
Oct. 29, 2020, 5 a.m. 8.7 ppb (9) 0.4 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 10.0 ppb (10) 0.17 ppb (3) 9.3 μg/m3 (9) 6.3 μg/m3 (27) 27.0
 
Oct. 29, 2020, 4 a.m. 14.4 ppb (14) 2.9 ppb (3) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 7.0 ppb (7) 0.18 ppb (3) 11.6 μg/m3 (11) 7.2 μg/m3 (31) 31.0
 
Oct. 29, 2020, 3 a.m. 15.1 ppb (15) 2.8 ppb (3) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 8.0 ppb (8) 0.25 ppb (3) 13.8 μg/m3 (13) 8.3 μg/m3 (35) 35.0
 
Oct. 29, 2020, 2 a.m. 22.2 ppb (21) 6.1 ppb (6) N/A 16.0 ppb (16) N/A 0.0 ppb (0) 8.0 ppb (8) 0.13 ppb (2) 15.9 μg/m3 (15) 8.6 μg/m3 (36) 36.0
 
Oct. 29, 2020, 1 a.m. 14.5 ppb (14) 1.4 ppb (2) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 11.0 ppb (11) 0.23 ppb (3) 12.9 μg/m3 (12) 7.4 μg/m3 (31) 31.0
 
Oct. 29, 2020, midnight 14.3 ppb (14) 1.6 ppb (2) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 11.0 ppb (11) 0.26 ppb (4) 16.6 μg/m3 (16) 8.3 μg/m3 (35) 35.0
 
Oct. 28, 2020, 11 p.m. 6.7 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 17.0 ppb (16) 0.2 ppb (3) 11.0 μg/m3 (11) 5.6 μg/m3 (24) 24.0
 
Oct. 28, 2020, 10 p.m. 3.5 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 20.0 ppb (19) 0.18 ppb (3) 9.9 μg/m3 (10) 4.5 μg/m3 (19) 19.0
 
Oct. 28, 2020, 9 p.m. 4.1 ppb (4) 1.2 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 24.0 ppb (23) 0.17 ppb (3) 13.3 μg/m3 (13) 6.1 μg/m3 (26) 26.0
 
Oct. 28, 2020, 8 p.m. 4.4 ppb (5) 1.4 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 23.0 ppb (22) 0.17 ppb (3) 11.2 μg/m3 (11) 5.0 μg/m3 (21) 22.0
 
Oct. 28, 2020, 7 p.m. 4.2 ppb (4) 1.4 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 22.0 ppb (21) 0.17 ppb (3) 10.6 μg/m3 (10) 5.8 μg/m3 (25) 25.0
 
Oct. 28, 2020, 6 p.m. 3.3 ppb (4) 1.3 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 22.0 ppb (21) 0.17 ppb (3) 10.3 μg/m3 (10) 5.7 μg/m3 (24) 24.0
 
Oct. 28, 2020, 5 p.m. 3.5 ppb (4) 1.4 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 21.0 ppb (20) 0.16 ppb (3) 13.2 μg/m3 (13) 5.7 μg/m3 (24) 24.0
 
Oct. 28, 2020, 4 p.m. 4.7 ppb (5) 1.9 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 19.0 ppb (18) 0.16 ppb (3) 11.8 μg/m3 (11) 4.5 μg/m3 (19) 19.0
 
Oct. 28, 2020, 3 p.m. 6.8 ppb (7) 2.5 ppb (3) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 17.0 ppb (16) 0.16 ppb (3) 11.2 μg/m3 (11) 4.3 μg/m3 (18) 18.0
 
Oct. 28, 2020, 2 p.m. 5.2 ppb (5) 1.4 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 17.0 ppb (16) 0.16 ppb (3) 7.8 μg/m3 (8) 3.9 μg/m3 (17) 17.0
 
Oct. 28, 2020, 1 p.m. 8.8 ppb (9) 1.1 ppb (2) N/A 8.0 ppb (8) N/A 4.0 ppb (6) 14.0 ppb (13) 0.18 ppb (3) 8.9 μg/m3 (9) 4.1 μg/m3 (18) 18.0
 
Oct. 28, 2020, noon 9.8 ppb (10) 0.9 ppb (1) N/A 9.0 ppb (9) N/A 4.0 ppb (6) 14.0 ppb (13) 0.18 ppb (3) 8.2 μg/m3 (8) 4.1 μg/m3 (18) 18.0
 
Oct. 28, 2020, 11 a.m. 6.1 ppb (6) 0.5 ppb (1) N/A 6.0 ppb (6) N/A 2.0 ppb (3) 17.0 ppb (16) 0.16 ppb (3) 7.3 μg/m3 (7) 4.0 μg/m3 (17) 17.0
 
Oct. 28, 2020, 10 a.m. 5.4 ppb (6) 0.4 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 19.0 ppb (18) 0.17 ppb (3) 6.9 μg/m3 (7) 3.9 μg/m3 (17) 18.0
 
Oct. 28, 2020, 9 a.m. 4.6 ppb (5) 0.4 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 20.0 ppb (19) 0.17 ppb (3) 7.0 μg/m3 (7) 4.0 μg/m3 (17) 19.0
 
Oct. 28, 2020, 8 a.m. 5.1 ppb (5) 0.3 ppb (1) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 21.0 ppb (20) 0.16 ppb (3) 7.4 μg/m3 (7) 4.0 μg/m3 (17) 20.0
 
Oct. 28, 2020, 7 a.m. 3.6 ppb (4) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 23.0 ppb (22) 0.16 ppb (3) 7.4 μg/m3 (7) 3.9 μg/m3 (17) 22.0
 
Oct. 28, 2020, 6 a.m. 3.4 ppb (4) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 23.0 ppb (22) 0.16 ppb (3) 7.5 μg/m3 (7) 4.3 μg/m3 (18) 22.0
 
Oct. 28, 2020, 5 a.m. 3.3 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 23.0 ppb (22) 0.17 ppb (3) 8.4 μg/m3 (8) 4.8 μg/m3 (20) 22.0
 
Oct. 28, 2020, 4 a.m. 3.1 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 24.0 ppb (23) 0.17 ppb (3) 8.2 μg/m3 (8) 4.2 μg/m3 (18) 23.0
 
Oct. 28, 2020, 3 a.m. 3.3 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 24.0 ppb (23) 0.18 ppb (3) 9.2 μg/m3 (9) 4.5 μg/m3 (19) 23.0
 
Oct. 28, 2020, 2 a.m. 4.5 ppb (5) 0.4 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 24.0 ppb (23) 0.08 ppb (2) 8.6 μg/m3 (8) 4.6 μg/m3 (20) 23.0
 
Oct. 28, 2020, 1 a.m. 3.2 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (25) 0.15 ppb (2) 9.3 μg/m3 (9) 4.6 μg/m3 (20) 25.0
 
Oct. 28, 2020, midnight 3.8 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (25) 0.19 ppb (3) 10.0 μg/m3 (10) 4.6 μg/m3 (20) 25.0
 
Oct. 27, 2020, 11 p.m. 4.7 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 29.0 ppb (27) 0.2 ppb (3) 12.0 μg/m3 (12) 4.9 μg/m3 (21) 27.0
 
Oct. 27, 2020, 10 p.m. 4.5 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (29) 0.2 ppb (3) 13.6 μg/m3 (13) 5.0 μg/m3 (21) 29.0
 
Oct. 27, 2020, 9 p.m. 3.6 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (32) 0.2 ppb (3) 12.4 μg/m3 (12) 5.0 μg/m3 (21) 32.0
 
Oct. 27, 2020, 8 p.m. 3.7 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 36.0 ppb (34) 0.19 ppb (3) 15.6 μg/m3 (15) 5.5 μg/m3 (23) 34.0
 
Oct. 27, 2020, 7 p.m. 3.4 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 37.0 ppb (35) 0.2 ppb (3) 14.6 μg/m3 (14) 5.6 μg/m3 (24) 35.0
 
Oct. 27, 2020, 6 p.m. 3.6 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 36.0 ppb (34) 0.2 ppb (3) 14.4 μg/m3 (14) 5.6 μg/m3 (24) 34.0
 
Oct. 27, 2020, 5 p.m. 4.6 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 34.0 ppb (32) 0.2 ppb (3) 16.6 μg/m3 (16) 6.4 μg/m3 (27) 32.0
 
Oct. 27, 2020, 4 p.m. 5.2 ppb (5) 1.3 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 32.0 ppb (30) 0.2 ppb (3) 17.0 μg/m3 (16) 6.9 μg/m3 (29) 30.0
 
Oct. 27, 2020, 3 p.m. 6.9 ppb (7) 1.6 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 29.0 ppb (27) 0.21 ppb (3) 23.8 μg/m3 (23) 7.2 μg/m3 (31) 31.0
 
Oct. 27, 2020, 2 p.m. 6.8 ppb (7) 1.2 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 28.0 ppb (26) 0.2 ppb (3) 14.6 μg/m3 (14) 6.8 μg/m3 (29) 29.0
 
Oct. 27, 2020, 1 p.m. 11.5 ppb (11) 1.2 ppb (2) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 24.0 ppb (23) 0.29 ppb (4) 16.1 μg/m3 (15) 7.2 μg/m3 (31) 31.0
 
Oct. 27, 2020, noon 13.7 ppb (13) 1.4 ppb (2) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 21.0 ppb (20) 0.31 ppb (4) 14.3 μg/m3 (14) 6.9 μg/m3 (29) 29.0
 
Oct. 27, 2020, 11 a.m. 10.3 ppb (10) 1.0 ppb (1) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 23.0 ppb (22) 0.24 ppb (3) 12.2 μg/m3 (12) 6.8 μg/m3 (29) 29.0
 
Oct. 27, 2020, 10 a.m. 6.6 ppb (7) 0.7 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 25.0 ppb (24) 0.19 ppb (3) 9.1 μg/m3 (9) 6.3 μg/m3 (27) 27.0
 
Oct. 27, 2020, 9 a.m. 6.0 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 26.0 ppb (25) 0.18 ppb (3) 8.8 μg/m3 (9) 6.4 μg/m3 (27) 27.0
 
Oct. 27, 2020, 8 a.m. 6.1 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 26.0 ppb (25) 0.18 ppb (3) 8.9 μg/m3 (9) 6.4 μg/m3 (27) 27.0
 
Oct. 27, 2020, 7 a.m. 5.0 ppb (5) 0.5 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 27.0 ppb (25) 0.18 ppb (3) 9.2 μg/m3 (9) 6.6 μg/m3 (28) 28.0
 
Oct. 27, 2020, 6 a.m. 5.0 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (26) 0.18 ppb (3) 9.3 μg/m3 (9) 6.8 μg/m3 (29) 29.0
 
Oct. 27, 2020, 5 a.m. 4.1 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (26) 0.17 ppb (3) 9.3 μg/m3 (9) 6.8 μg/m3 (29) 29.0
 
Oct. 27, 2020, 4 a.m. 4.3 ppb (5) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (26) 0.17 ppb (3) 10.6 μg/m3 (10) 6.9 μg/m3 (29) 29.0
 
Oct. 27, 2020, 3 a.m. 4.2 ppb (4) 0.7 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (26) 0.17 ppb (3) 10.2 μg/m3 (10) 7.1 μg/m3 (30) 30.0
 
Oct. 27, 2020, 2 a.m. 4.5 ppb (5) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (26) 0.09 ppb (2) 10.0 μg/m3 (10) 7.0 μg/m3 (30) 30.0
 
Oct. 27, 2020, 1 a.m. 3.4 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (27) 0.16 ppb (3) 10.2 μg/m3 (10) 7.0 μg/m3 (30) 30.0
 
Oct. 27, 2020, midnight 3.9 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (28) 0.18 ppb (3) 11.2 μg/m3 (11) 7.0 μg/m3 (30) 30.0
 
Oct. 26, 2020, 11 p.m. 3.5 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (28) 0.18 ppb (3) 12.2 μg/m3 (12) 7.2 μg/m3 (31) 31.0
 
Oct. 26, 2020, 10 p.m. 3.2 ppb (4) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (29) 0.18 ppb (3) 13.1 μg/m3 (13) 7.7 μg/m3 (33) 33.0
 
Oct. 26, 2020, 9 p.m. 3.1 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (29) 0.17 ppb (3) 13.3 μg/m3 (13) 7.5 μg/m3 (32) 32.0
 
Oct. 26, 2020, 8 p.m. 3.5 ppb (4) 1.1 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (29) N/A 11.9 μg/m3 (12) 7.8 μg/m3 (33) 33.0
 
Oct. 26, 2020, 7 p.m. 2.9 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A 13.4 μg/m3 (13) 8.1 μg/m3 (34) 34.0
 
Oct. 26, 2020, 6 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A 11.7 μg/m3 (11) 7.2 μg/m3 (31) 31.0
 
Oct. 26, 2020, 5 p.m. 2.5 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A 11.6 μg/m3 (11) 6.6 μg/m3 (28) 28.0
 
Oct. 26, 2020, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.16 ppb (3) 13.1 μg/m3 (13) 7.0 μg/m3 (30) 30.0
 
Oct. 26, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) 0.18 ppb (3) 11.5 μg/m3 (11) 7.2 μg/m3 (31) 31.0
 
Oct. 26, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) 0.35 ppb (4) N/A N/A 14.0
 
Oct. 26, 2020, 1 p.m. 15.4 ppb (15) 2.2 ppb (3) N/A 13.0 ppb (13) N/A N/A 16.0 ppb (15) 0.3 ppb (4) 20.1 μg/m3 (19) 8.1 μg/m3 (34) 34.0
 
Oct. 26, 2020, noon 12.9 ppb (13) 1.5 ppb (2) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 18.0 ppb (17) 0.26 ppb (4) 14.4 μg/m3 (14) 6.9 μg/m3 (29) 29.0
 
Oct. 26, 2020, 11 a.m. 11.9 ppb (12) 1.0 ppb (1) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 18.0 ppb (17) 0.2 ppb (3) 12.6 μg/m3 (12) 6.4 μg/m3 (27) 27.0
 
Oct. 26, 2020, 10 a.m. 10.5 ppb (10) 0.6 ppb (1) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 18.0 ppb (17) 0.17 ppb (3) 9.6 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
Oct. 26, 2020, 9 a.m. 7.9 ppb (8) 0.3 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 19.0 ppb (18) 0.17 ppb (3) 9.4 μg/m3 (9) 6.1 μg/m3 (26) 26.0
 
Oct. 26, 2020, 8 a.m. 4.2 ppb (4) 0.3 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 24.0 ppb (23) 0.15 ppb (2) 8.0 μg/m3 (8) 5.6 μg/m3 (24) 24.0
 
Oct. 26, 2020, 7 a.m. 6.3 ppb (6) 0.3 ppb (1) N/A 6.0 ppb (6) N/A 3.0 ppb (5) 23.0 ppb (22) 0.16 ppb (3) 8.1 μg/m3 (8) 5.3 μg/m3 (23) 23.0
 
Oct. 26, 2020, 6 a.m. 4.8 ppb (5) 0.2 ppb (1) N/A 5.0 ppb (5) N/A 3.0 ppb (5) 24.0 ppb (23) 0.15 ppb (2) 9.2 μg/m3 (9) 5.5 μg/m3 (23) 23.0
 
Oct. 26, 2020, 5 a.m. 4.7 ppb (5) 0.3 ppb (1) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 24.0 ppb (23) 0.15 ppb (2) 8.8 μg/m3 (9) 5.9 μg/m3 (25) 25.0
 
Oct. 26, 2020, 4 a.m. 7.2 ppb (7) 0.3 ppb (1) N/A 7.0 ppb (7) N/A 4.0 ppb (6) 22.0 ppb (21) 0.16 ppb (3) 11.6 μg/m3 (11) 7.5 μg/m3 (32) 32.0
 
Oct. 26, 2020, 3 a.m. 5.1 ppb (5) 0.2 ppb (1) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 25.0 ppb (24) 0.16 ppb (3) 11.8 μg/m3 (11) 6.5 μg/m3 (28) 28.0
 
Oct. 26, 2020, 2 a.m. 6.4 ppb (7) 0.2 ppb (1) N/A 6.0 ppb (6) N/A 2.0 ppb (3) 23.0 ppb (22) 0.08 ppb (2) 9.5 μg/m3 (9) 6.4 μg/m3 (27) 27.0
 
Oct. 26, 2020, 1 a.m. 4.1 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 25.0 ppb (24) 0.15 ppb (2) 10.2 μg/m3 (10) 5.7 μg/m3 (24) 24.0
 
Oct. 26, 2020, midnight 6.4 ppb (7) 0.3 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 23.0 ppb (22) 0.17 ppb (3) 10.7 μg/m3 (10) 6.1 μg/m3 (26) 26.0
 
Oct. 25, 2020, 11 p.m. 3.9 ppb (4) 0.4 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 26.0 ppb (25) 0.17 ppb (3) 12.1 μg/m3 (12) 5.1 μg/m3 (22) 25.0
 
Oct. 25, 2020, 10 p.m. 4.8 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 27.0 ppb (25) 0.17 ppb (3) 9.2 μg/m3 (9) 4.6 μg/m3 (20) 25.0
 
Oct. 25, 2020, 9 p.m. 5.9 ppb (6) 1.3 ppb (2) N/A 5.0 ppb (5) N/A 3.0 ppb (5) 26.0 ppb (25) 0.16 ppb (3) 10.7 μg/m3 (10) 4.7 μg/m3 (20) 25.0
 
Oct. 25, 2020, 8 p.m. 4.2 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 26.0 ppb (25) 0.17 ppb (3) 10.1 μg/m3 (10) 4.5 μg/m3 (19) 25.0
 
Oct. 25, 2020, 7 p.m. 5.8 ppb (6) 1.5 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 25.0 ppb (24) 0.17 ppb (3) 12.8 μg/m3 (12) 6.3 μg/m3 (27) 27.0
 
Oct. 25, 2020, 6 p.m. 5.2 ppb (5) 1.8 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 24.0 ppb (23) 0.16 ppb (3) 14.6 μg/m3 (14) 10.6 μg/m3 (45) 45.0
 
Oct. 25, 2020, 5 p.m. 6.0 ppb (6) 2.7 ppb (3) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 23.0 ppb (22) 0.16 ppb (3) 15.1 μg/m3 (14) 11.6 μg/m3 (49) 49.0
 
Oct. 25, 2020, 4 p.m. 5.8 ppb (6) 2.4 ppb (3) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 22.0 ppb (21) 0.16 ppb (3) 11.1 μg/m3 (11) 6.7 μg/m3 (28) 28.0
 
Oct. 25, 2020, 3 p.m. 5.8 ppb (6) 1.7 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 22.0 ppb (21) 0.16 ppb (3) 9.5 μg/m3 (9) 5.4 μg/m3 (23) 23.0
 
Oct. 25, 2020, 2 p.m. 3.8 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 24.0 ppb (23) 0.17 ppb (3) 9.2 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
Oct. 25, 2020, 1 p.m. 4.5 ppb (5) 0.3 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 23.0 ppb (22) 0.16 ppb (3) 7.5 μg/m3 (7) 4.4 μg/m3 (19) 22.0
 
Oct. 25, 2020, noon 3.0 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (21) 0.16 ppb (3) 9.8 μg/m3 (10) 4.9 μg/m3 (21) 21.0
 
Oct. 25, 2020, 11 a.m. 2.8 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 23.0 ppb (22) 0.16 ppb (3) 10.1 μg/m3 (10) 5.2 μg/m3 (22) 22.0
 
Oct. 25, 2020, 10 a.m. 3.0 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 23.0 ppb (22) 0.16 ppb (3) 9.4 μg/m3 (9) 5.7 μg/m3 (24) 24.0
 
Oct. 25, 2020, 9 a.m. 2.5 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 22.0 ppb (21) 0.16 ppb (3) 11.3 μg/m3 (11) 6.8 μg/m3 (29) 29.0
 
Oct. 25, 2020, 8 a.m. 3.5 ppb (4) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 21.0 ppb (20) 0.16 ppb (3) 9.8 μg/m3 (10) 6.8 μg/m3 (29) 29.0
 
Oct. 25, 2020, 7 a.m. 4.2 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 21.0 ppb (20) 0.17 ppb (3) 9.7 μg/m3 (9) 6.1 μg/m3 (26) 26.0
 
Oct. 25, 2020, 6 a.m. 3.3 ppb (4) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 24.0 ppb (23) 0.18 ppb (3) 8.7 μg/m3 (9) 5.6 μg/m3 (24) 24.0
 
Oct. 25, 2020, 5 a.m. 3.3 ppb (4) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (21) 0.17 ppb (3) 8.3 μg/m3 (8) 5.5 μg/m3 (23) 23.0
 
Oct. 25, 2020, 4 a.m. 3.7 ppb (4) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 23.0 ppb (22) 0.17 ppb (3) 8.5 μg/m3 (8) 4.7 μg/m3 (20) 22.0
 
Oct. 25, 2020, 3 a.m. 3.0 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 24.0 ppb (23) 0.16 ppb (3) 9.2 μg/m3 (9) 4.7 μg/m3 (20) 23.0
 
Oct. 25, 2020, 2 a.m. 3.1 ppb (3) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (24) 0.07 ppb (2) 7.5 μg/m3 (7) 4.3 μg/m3 (18) 24.0
 
Oct. 25, 2020, 1 a.m. 2.6 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 25.0 ppb (24) 0.13 ppb (2) 8.0 μg/m3 (8) 4.2 μg/m3 (18) 24.0
 
Oct. 25, 2020, midnight 2.4 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (25) 0.14 ppb (2) 8.3 μg/m3 (8) 4.5 μg/m3 (19) 25.0
 
Oct. 24, 2020, 11 p.m. 3.5 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (25) 0.17 ppb (3) 9.9 μg/m3 (10) 6.3 μg/m3 (27) 27.0
 
Oct. 24, 2020, 10 p.m. 2.5 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (27) 0.15 ppb (2) 11.3 μg/m3 (11) 7.1 μg/m3 (30) 30.0
 
Oct. 24, 2020, 9 p.m. 3.1 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (27) 0.14 ppb (2) 11.0 μg/m3 (11) 7.3 μg/m3 (31) 31.0
 
Oct. 24, 2020, 8 p.m. 3.0 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 28.0 ppb (26) 0.15 ppb (2) 11.0 μg/m3 (11) 6.7 μg/m3 (28) 28.0
 
Oct. 24, 2020, 7 p.m. 2.7 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 28.0 ppb (26) 0.14 ppb (2) 13.0 μg/m3 (13) 8.1 μg/m3 (34) 34.0
 
Oct. 24, 2020, 6 p.m. 2.9 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 27.0 ppb (25) 0.13 ppb (2) 12.8 μg/m3 (12) 9.4 μg/m3 (40) 40.0
 
Oct. 24, 2020, 5 p.m. 2.9 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (25) 0.13 ppb (2) 11.7 μg/m3 (11) 8.7 μg/m3 (37) 37.0
 
Oct. 24, 2020, 4 p.m. 3.3 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 23.0 ppb (22) 0.15 ppb (2) 13.0 μg/m3 (13) 9.5 μg/m3 (40) 40.0
 
Oct. 24, 2020, 3 p.m. 4.8 ppb (5) 1.2 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 20.0 ppb (19) 0.14 ppb (2) 14.4 μg/m3 (14) 10.3 μg/m3 (43) 43.0
 
Oct. 24, 2020, 2 p.m. 6.3 ppb (6) 1.1 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 16.0 ppb (15) 0.16 ppb (3) 14.4 μg/m3 (14) 11.2 μg/m3 (47) 47.0
 
Oct. 24, 2020, 1 p.m. 8.9 ppb (9) 0.7 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 12.0 ppb (12) 0.2 ppb (3) 16.0 μg/m3 (15) 11.8 μg/m3 (50) 50.0
 
Oct. 24, 2020, noon 10.6 ppb (10) 0.5 ppb (1) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 11.0 ppb (11) 0.18 ppb (3) 16.5 μg/m3 (16) 12.3 μg/m3 (52) 52.0
 
Oct. 24, 2020, 11 a.m. 10.0 ppb (10) 0.4 ppb (1) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 11.0 ppb (11) 0.19 ppb (3) 18.3 μg/m3 (17) 14.0 μg/m3 (55) 55.0
 
Oct. 24, 2020, 10 a.m. 8.0 ppb (8) 0.4 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 13.0 ppb (13) 0.17 ppb (3) 16.2 μg/m3 (15) 12.0 μg/m3 (50) 50.0
 
Oct. 24, 2020, 9 a.m. 9.1 ppb (9) 0.6 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 12.0 ppb (12) 0.2 ppb (3) 14.2 μg/m3 (14) 10.6 μg/m3 (45) 45.0
 
Oct. 24, 2020, 8 a.m. 8.6 ppb (9) 0.3 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 13.0 ppb (13) 0.17 ppb (3) 14.4 μg/m3 (14) 10.2 μg/m3 (43) 43.0
 
Oct. 24, 2020, 7 a.m. 17.3 ppb (17) 0.7 ppb (1) N/A 17.0 ppb (17) N/A 1.0 ppb (2) 8.0 ppb (8) 0.22 ppb (3) 16.7 μg/m3 (16) 11.3 μg/m3 (48) 48.0
 
Oct. 24, 2020, 6 a.m. 10.4 ppb (10) 0.3 ppb (1) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 15.0 ppb (14) 0.22 ppb (3) 14.8 μg/m3 (14) 10.1 μg/m3 (43) 43.0
 
Oct. 24, 2020, 5 a.m. 17.0 ppb (17) 1.1 ppb (2) N/A 16.0 ppb (16) N/A 1.0 ppb (2) 8.0 ppb (8) 0.26 ppb (4) 17.5 μg/m3 (17) 11.1 μg/m3 (47) 47.0
 
Oct. 24, 2020, 4 a.m. 21.7 ppb (21) 1.9 ppb (2) N/A 20.0 ppb (19) N/A 1.0 ppb (2) 7.0 ppb (7) 0.34 ppb (4) 21.8 μg/m3 (21) 11.7 μg/m3 (49) 49.0
 
Oct. 24, 2020, 3 a.m. 21.3 ppb (21) 1.9 ppb (2) N/A 19.0 ppb (18) N/A 1.0 ppb (2) 10.0 ppb (10) 0.28 ppb (4) 18.2 μg/m3 (17) 8.4 μg/m3 (36) 36.0
 
Oct. 24, 2020, 2 a.m. 17.6 ppb (17) 0.8 ppb (1) N/A 17.0 ppb (17) N/A 1.0 ppb (2) 13.0 ppb (13) 0.1 ppb (2) 18.4 μg/m3 (18) 7.8 μg/m3 (33) 33.0
 
Oct. 24, 2020, 1 a.m. 18.3 ppb (18) 1.0 ppb (1) N/A 17.0 ppb (17) N/A 1.0 ppb (2) 13.0 ppb (13) 0.2 ppb (3) 23.3 μg/m3 (22) 8.7 μg/m3 (37) 37.0
 
Oct. 24, 2020, midnight 12.2 ppb (12) 0.4 ppb (1) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 18.0 ppb (17) 0.22 ppb (3) 23.4 μg/m3 (22) 8.6 μg/m3 (36) 36.0
 
Oct. 23, 2020, 11 p.m. 8.0 ppb (8) 0.8 ppb (1) N/A 7.0 ppb (7) N/A 2.0 ppb (3) 22.0 ppb (21) 0.19 ppb (3) 18.7 μg/m3 (18) 9.8 μg/m3 (41) 41.0
 
Oct. 23, 2020, 10 p.m. 8.9 ppb (9) 1.9 ppb (2) N/A 7.0 ppb (7) N/A 2.0 ppb (3) 22.0 ppb (21) 0.17 ppb (3) 19.3 μg/m3 (18) 10.8 μg/m3 (46) 46.0
 
Oct. 23, 2020, 9 p.m. 8.7 ppb (9) 2.6 ppb (3) N/A 6.0 ppb (6) N/A 2.0 ppb (3) 23.0 ppb (22) 0.16 ppb (3) 18.1 μg/m3 (17) 9.1 μg/m3 (38) 38.0
 
Oct. 23, 2020, 8 p.m. 9.4 ppb (9) 3.7 ppb (4) N/A 6.0 ppb (6) N/A 3.0 ppb (5) 22.0 ppb (21) 0.15 ppb (2) 15.6 μg/m3 (15) 7.1 μg/m3 (30) 30.0
 
Oct. 23, 2020, 7 p.m. 8.7 ppb (9) 4.0 ppb (4) N/A 5.0 ppb (5) N/A 3.0 ppb (5) 22.0 ppb (21) 0.15 ppb (2) 17.3 μg/m3 (17) 7.5 μg/m3 (32) 32.0
 
Oct. 23, 2020, 6 p.m. 10.0 ppb (10) 5.0 ppb (5) N/A 5.0 ppb (5) N/A 5.0 ppb (8) 21.0 ppb (20) 0.15 ppb (2) 16.4 μg/m3 (16) 9.5 μg/m3 (40) 40.0
 
Oct. 23, 2020, 5 p.m. 19.3 ppb (19) 11.2 ppb (11) N/A 8.0 ppb (8) N/A 7.0 ppb (10) 17.0 ppb (16) 0.16 ppb (3) 21.9 μg/m3 (21) 13.3 μg/m3 (54) 54.0
 
Oct. 23, 2020, 4 p.m. 12.0 ppb (12) 6.0 ppb (6) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 18.0 ppb (17) 0.16 ppb (3) 30.4 μg/m3 (29) 20.3 μg/m3 (69) 69.0
 
Oct. 23, 2020, 3 p.m. 10.6 ppb (10) 4.8 ppb (5) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 17.0 ppb (16) 0.16 ppb (3) 20.3 μg/m3 (19) 15.0 μg/m3 (58) 58.0
 
Oct. 23, 2020, 2 p.m. 8.0 ppb (8) 2.7 ppb (3) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 17.0 ppb (16) 0.17 ppb (3) 16.7 μg/m3 (16) 12.4 μg/m3 (52) 52.0
 
Oct. 23, 2020, 1 p.m. 7.8 ppb (8) 1.4 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 16.0 ppb (15) 0.17 ppb (3) 14.2 μg/m3 (14) 10.6 μg/m3 (45) 45.0
 
Oct. 23, 2020, noon 7.6 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 15.0 ppb (14) 0.18 ppb (3) 13.8 μg/m3 (13) 11.0 μg/m3 (46) 46.0
 
Oct. 23, 2020, 11 a.m. 7.0 ppb (7) 0.6 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 15.0 ppb (14) 0.17 ppb (3) 13.3 μg/m3 (13) 10.8 μg/m3 (46) 46.0
 
Oct. 23, 2020, 10 a.m. 5.0 ppb (5) 0.2 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 17.0 ppb (16) 0.15 ppb (2) 12.1 μg/m3 (12) 9.3 μg/m3 (39) 39.0