ID: 1803

AQSQID: 160010010

Site Name: St. Lukes Meridian

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

Updated: Jan. 22, 2021, 8:31 a.m.

Location: Meridian (Whiteriver Dr), ID

Reporting: True, Located: True

Current AQI: 68.0

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
Jan. 22, 2021, 7 a.m. 18.5 ppb (18) 1.5 ppb (2) 19.5 ppb (19) 17.0 ppb (17) 15.2 ppb (15) 0.0 ppb (0) 2.0 ppb (2) 0.25 ppb (3) N/A 20.0 μg/m3 (68) 68.0
 
Jan. 22, 2021, 6 a.m. 17.5 ppb (17) 1.6 ppb (2) 18.3 ppb (18) 16.0 ppb (16) 14.3 ppb (14) 0.0 ppb (0) 3.0 ppb (3) 0.26 ppb (4) N/A 22.0 μg/m3 (72) 72.0
 
Jan. 22, 2021, 5 a.m. 17.7 ppb (17) 2.2 ppb (3) 17.9 ppb (17) 15.0 ppb (15) 13.7 ppb (13) 0.0 ppb (0) 3.0 ppb (3) 0.26 ppb (4) N/A 20.0 μg/m3 (68) 68.0
 
Jan. 22, 2021, 4 a.m. 20.5 ppb (20) 2.1 ppb (2) 20.9 ppb (20) 18.0 ppb (17) 16.0 ppb (16) 0.0 ppb (0) 2.0 ppb (2) 0.26 ppb (4) N/A 19.0 μg/m3 (66) 66.0
 
Jan. 22, 2021, 3 a.m. 22.4 ppb (22) 2.2 ppb (3) 22.3 ppb (22) 20.0 ppb (19) 17.5 ppb (17) 0.0 ppb (0) 3.0 ppb (3) 0.27 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 22, 2021, 2 a.m. 19.1 ppb (19) 0.8 ppb (1) 19.8 ppb (19) 18.0 ppb (17) 16.2 ppb (16) 0.0 ppb (0) 5.0 ppb (5) 0.22 ppb (3) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 22, 2021, 1 a.m. 19.9 ppb (19) 1.4 ppb (2) 20.1 ppb (19) 19.0 ppb (18) 16.1 ppb (16) 0.0 ppb (0) 5.0 ppb (5) 0.23 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 22, 2021, midnight 18.2 ppb (18) 1.6 ppb (2) 18.0 ppb (17) 17.0 ppb (17) 13.9 ppb (14) 0.0 ppb (0) 9.0 ppb (9) 0.23 ppb (3) N/A 18.0 μg/m3 (64) 64.0
 
Jan. 21, 2021, 11 p.m. 9.3 ppb (9) 0.7 ppb (1) 9.2 ppb (9) 9.0 ppb (9) 7.3 ppb (7) 0.0 ppb (0) 19.0 ppb (18) 0.16 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Jan. 21, 2021, 10 p.m. 10.0 ppb (10) 3.2 ppb (4) 8.5 ppb (9) 7.0 ppb (7) 5.3 ppb (5) 0.0 ppb (0) 23.0 ppb (22) 0.14 ppb (2) N/A 5.0 μg/m3 (21) 22.0
 
Jan. 21, 2021, 9 p.m. 5.9 ppb (6) 1.1 ppb (2) 6.1 ppb (6) 5.0 ppb (5) 4.0 ppb (4) 0.0 ppb (0) 24.0 ppb (23) 0.13 ppb (2) N/A 3.0 μg/m3 (13) 23.0
 
Jan. 21, 2021, 8 p.m. 7.7 ppb (8) 1.9 ppb (2) 8.1 ppb (8) 6.0 ppb (6) 4.9 ppb (5) 0.0 ppb (0) 22.0 ppb (21) 0.14 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 21, 2021, 7 p.m. 6.2 ppb (6) 1.5 ppb (2) 6.8 ppb (7) 5.0 ppb (5) 4.2 ppb (4) 0.0 ppb (0) 21.0 ppb (20) 0.13 ppb (2) N/A 4.0 μg/m3 (17) 20.0
 
Jan. 21, 2021, 6 p.m. 9.5 ppb (9) 3.8 ppb (4) 10.0 ppb (10) 6.0 ppb (6) 4.9 ppb (5) 0.0 ppb (0) 16.0 ppb (15) 0.14 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 21, 2021, 5 p.m. 21.1 ppb (20) 10.1 ppb (10) 17.3 ppb (17) 11.0 ppb (11) 8.2 ppb (8) 0.0 ppb (0) 13.0 ppb (13) 0.19 ppb (3) N/A 4.0 μg/m3 (17) 20.0
 
Jan. 21, 2021, 4 p.m. 59.3 ppb (57) 37.8 ppb (36) 58.2 ppb (56) 22.0 ppb (21) 18.1 ppb (18) 1.0 ppb (2) 1.0 ppb (1) 0.44 ppb (5) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 21, 2021, 3 p.m. 43.8 ppb (42) 24.4 ppb (24) 42.5 ppb (41) 19.0 ppb (18) 16.7 ppb (16) 1.0 ppb (2) 1.0 ppb (1) 0.35 ppb (4) N/A 20.0 μg/m3 (68) 68.0
 
Jan. 21, 2021, 2 p.m. 41.8 ppb (40) 19.6 ppb (19) 42.6 ppb (41) 22.0 ppb (21) 19.2 ppb (19) 1.0 ppb (2) 0.0 ppb (0) 0.35 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 21, 2021, 1 p.m. 32.0 ppb (31) 11.8 ppb (12) 31.8 ppb (30) 20.0 ppb (19) 17.7 ppb (17) 0.0 ppb (0) 1.0 ppb (1) 0.28 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 21, 2021, noon 27.2 ppb (26) 8.4 ppb (8) 26.8 ppb (26) 19.0 ppb (18) 16.8 ppb (16) 0.0 ppb (0) 0.0 ppb (0) 0.26 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 21, 2021, 11 a.m. 21.9 ppb (21) 4.8 ppb (5) 22.0 ppb (21) 17.0 ppb (17) 15.3 ppb (15) 0.0 ppb (0) 2.0 ppb (2) 0.24 ppb (3) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 21, 2021, 10 a.m. 23.3 ppb (22) 5.2 ppb (5) 23.8 ppb (23) 18.0 ppb (17) 16.1 ppb (16) 0.0 ppb (0) 1.0 ppb (1) 0.24 ppb (3) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 21, 2021, 9 a.m. 22.2 ppb (21) 4.5 ppb (5) 21.7 ppb (21) 18.0 ppb (17) 15.5 ppb (15) 0.0 ppb (0) 2.0 ppb (2) 0.23 ppb (3) N/A 16.0 μg/m3 (60) 60.0
 
Jan. 21, 2021, 8 a.m. 31.0 ppb (30) 11.6 ppb (11) 31.1 ppb (30) 19.0 ppb (18) 17.5 ppb (17) 0.0 ppb (0) 0.0 ppb (0) 0.29 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 21, 2021, 7 a.m. 36.5 ppb (35) 15.3 ppb (15) 36.1 ppb (35) 21.0 ppb (20) 18.7 ppb (18) 0.0 ppb (0) 1.0 ppb (1) 0.35 ppb (4) N/A 18.0 μg/m3 (64) 64.0
 
Jan. 21, 2021, 6 a.m. 40.3 ppb (39) 16.8 ppb (16) 38.0 ppb (36) 24.0 ppb (23) 20.3 ppb (20) 1.0 ppb (2) 1.0 ppb (1) 0.42 ppb (5) N/A 16.0 μg/m3 (60) 60.0
 
Jan. 21, 2021, 5 a.m. 29.0 ppb (28) 5.8 ppb (6) 27.0 ppb (26) 23.0 ppb (22) 19.8 ppb (19) 0.0 ppb (0) 2.0 ppb (2) 0.33 ppb (4) N/A 16.0 μg/m3 (60) 60.0
 
Jan. 21, 2021, 4 a.m. 38.4 ppb (37) 13.2 ppb (13) 35.1 ppb (34) 25.0 ppb (24) 21.0 ppb (20) 0.0 ppb (0) 2.0 ppb (2) 0.35 ppb (4) N/A 16.0 μg/m3 (60) 60.0
 
Jan. 21, 2021, 3 a.m. 30.4 ppb (29) 7.0 ppb (7) 32.7 ppb (31) 23.0 ppb (22) 20.6 ppb (20) 0.0 ppb (0) 3.0 ppb (3) 0.36 ppb (5) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 21, 2021, 2 a.m. 18.5 ppb (18) 1.2 ppb (2) 19.0 ppb (18) 17.0 ppb (17) 15.1 ppb (15) 0.0 ppb (0) 10.0 ppb (10) 0.24 ppb (3) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 21, 2021, 1 a.m. 21.4 ppb (21) 1.1 ppb (2) 20.5 ppb (20) 20.0 ppb (19) 16.7 ppb (16) 0.0 ppb (0) 10.0 ppb (10) 0.26 ppb (4) N/A 7.0 μg/m3 (30) 30.0
 
Jan. 21, 2021, midnight 16.7 ppb (16) 1.5 ppb (2) 13.8 ppb (14) 15.0 ppb (15) 10.9 ppb (11) 0.0 ppb (0) 17.0 ppb (16) 0.25 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2021, 11 p.m. 9.8 ppb (10) 1.8 ppb (2) 9.7 ppb (10) 8.0 ppb (8) 6.4 ppb (7) 0.0 ppb (0) 24.0 ppb (23) 0.17 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Jan. 20, 2021, 10 p.m. 4.0 ppb (4) 0.7 ppb (1) 4.7 ppb (5) 3.0 ppb (3) 2.8 ppb (3) 0.0 ppb (0) 30.0 ppb (28) 0.12 ppb (2) N/A 5.0 μg/m3 (21) 28.0
 
Jan. 20, 2021, 9 p.m. 5.2 ppb (5) 1.8 ppb (2) 5.4 ppb (6) 3.0 ppb (3) 2.7 ppb (3) 0.0 ppb (0) 30.0 ppb (28) 0.12 ppb (2) N/A 3.0 μg/m3 (13) 28.0
 
Jan. 20, 2021, 8 p.m. 4.7 ppb (5) 1.5 ppb (2) 5.0 ppb (5) 3.0 ppb (3) 2.5 ppb (3) 0.0 ppb (0) 29.0 ppb (27) 0.12 ppb (2) N/A 4.0 μg/m3 (17) 27.0
 
Jan. 20, 2021, 7 p.m. N/A N/A 4.9 ppb (5) N/A 2.4 ppb (3) 0.0 ppb (0) 29.0 ppb (27) 0.12 ppb (2) N/A 3.0 μg/m3 (13) 27.0
 
Jan. 20, 2021, 6 p.m. N/A N/A 5.8 ppb (6) N/A 2.9 ppb (3) 0.0 ppb (0) 29.0 ppb (27) 0.12 ppb (2) N/A 1.0 μg/m3 (5) 27.0
 
Jan. 20, 2021, 5 p.m. N/A N/A 9.3 ppb (9) N/A 5.0 ppb (5) 0.0 ppb (0) 26.0 ppb (25) 0.15 ppb (2) N/A 2.0 μg/m3 (9) 25.0
 
Jan. 20, 2021, 4 p.m. 18.5 ppb (18) 5.9 ppb (6) 16.8 ppb (16) 13.0 ppb (13) 9.8 ppb (10) 0.0 ppb (0) 20.0 ppb (19) 0.16 ppb (3) N/A 2.0 μg/m3 (9) 19.0
 
Jan. 20, 2021, 3 p.m. 22.6 ppb (22) 5.7 ppb (6) 20.2 ppb (20) 17.0 ppb (17) 13.3 ppb (13) 0.0 ppb (0) 14.0 ppb (13) 0.2 ppb (3) N/A 1.0 μg/m3 (5) 22.0
 
Jan. 20, 2021, 2 p.m. 19.2 ppb (19) 2.9 ppb (3) 17.6 ppb (17) 16.0 ppb (16) 12.9 ppb (13) 0.0 ppb (0) 14.0 ppb (13) 0.2 ppb (3) N/A 0.0 μg/m3 (0) 19.0
 
Jan. 20, 2021, 1 p.m. 20.3 ppb (20) 3.6 ppb (4) 17.2 ppb (17) 17.0 ppb (17) 12.1 ppb (12) 0.0 ppb (0) 13.0 ppb (13) 0.18 ppb (3) N/A 2.0 μg/m3 (9) 20.0
 
Jan. 20, 2021, noon 24.8 ppb (24) 6.8 ppb (7) 19.7 ppb (19) 18.0 ppb (17) 12.8 ppb (13) 0.0 ppb (0) 7.0 ppb (7) 0.19 ppb (3) N/A 1.0 μg/m3 (5) 24.0
 
Jan. 20, 2021, 11 a.m. 25.7 ppb (25) 7.5 ppb (8) 19.9 ppb (19) 18.0 ppb (17) 13.6 ppb (13) 0.0 ppb (0) 3.0 ppb (3) 0.17 ppb (3) N/A 3.0 μg/m3 (13) 25.0
 
Jan. 20, 2021, 10 a.m. 35.0 ppb (34) 11.5 ppb (11) 31.6 ppb (30) 23.0 ppb (22) 19.3 ppb (19) 0.0 ppb (0) 1.0 ppb (1) 0.21 ppb (3) N/A 5.0 μg/m3 (21) 34.0
 
Jan. 20, 2021, 9 a.m. 15.4 ppb (15) 1.1 ppb (2) 14.8 ppb (14) 14.0 ppb (14) 11.6 ppb (11) 0.0 ppb (0) 11.0 ppb (11) 0.16 ppb (3) N/A -1.0 μg/m3 (0) 15.0
 
Jan. 20, 2021, 8 a.m. 12.4 ppb (12) 0.3 ppb (1) 11.0 ppb (11) 12.0 ppb (12) 9.1 ppb (9) 0.0 ppb (0) 15.0 ppb (14) 0.15 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 20, 2021, 7 a.m. 18.4 ppb (18) 1.4 ppb (2) 17.8 ppb (17) 17.0 ppb (17) 14.1 ppb (14) 0.0 ppb (0) 10.0 ppb (10) 0.17 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 20, 2021, 6 a.m. 20.7 ppb (20) 2.3 ppb (3) 17.4 ppb (17) 18.0 ppb (17) 13.7 ppb (13) 0.0 ppb (0) 6.0 ppb (6) 0.22 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2021, 5 a.m. 20.5 ppb (20) 3.8 ppb (4) 16.3 ppb (16) 17.0 ppb (17) 11.8 ppb (12) 0.0 ppb (0) 9.0 ppb (9) 0.23 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 20, 2021, 4 a.m. 46.3 ppb (44) 19.2 ppb (19) 37.4 ppb (36) 27.0 ppb (26) 21.8 ppb (21) 1.0 ppb (2) 1.0 ppb (1) 0.44 ppb (5) N/A 19.0 μg/m3 (66) 66.0
 
Jan. 20, 2021, 3 a.m. 95.7 ppb (96) 58.7 ppb (57) 86.2 ppb (86) 37.0 ppb (35) 30.5 ppb (29) 1.0 ppb (2) 1.0 ppb (1) 0.76 ppb (10) N/A 23.0 μg/m3 (74) 96.0
 
Jan. 20, 2021, 2 a.m. 44.6 ppb (43) 11.6 ppb (11) 53.9 ppb (51) 33.0 ppb (32) 29.2 ppb (28) 0.0 ppb (0) 2.0 ppb (2) 0.43 ppb (5) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 20, 2021, 1 a.m. 28.9 ppb (28) 1.1 ppb (2) 27.4 ppb (26) 28.0 ppb (27) 23.2 ppb (22) 0.0 ppb (0) 6.0 ppb (6) 0.34 ppb (4) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 20, 2021, midnight 15.5 ppb (15) 0.9 ppb (1) 14.6 ppb (14) 15.0 ppb (15) 11.9 ppb (12) 0.0 ppb (0) 18.0 ppb (17) 0.23 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 19, 2021, 11 p.m. 7.2 ppb (7) 1.3 ppb (2) 6.8 ppb (7) 6.0 ppb (6) 4.8 ppb (5) 0.0 ppb (0) 27.0 ppb (25) 0.16 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2021, 10 p.m. 4.4 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A N/A 5.0
 
Jan. 19, 2021, 9 p.m. 3.4 ppb (4) 0.9 ppb (1) 3.7 ppb (4) 3.0 ppb (3) 2.0 ppb (2) N/A 31.0 ppb (29) 0.13 ppb (2) N/A 4.0 μg/m3 (17) 29.0
 
Jan. 19, 2021, 8 p.m. 4.6 ppb (5) 1.5 ppb (2) 5.0 ppb (5) 3.0 ppb (3) 2.7 ppb (3) N/A 28.0 ppb (26) 0.14 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 19, 2021, 7 p.m. 6.1 ppb (6) 2.3 ppb (3) 6.1 ppb (6) 4.0 ppb (4) 2.9 ppb (3) N/A 26.0 ppb (25) 0.14 ppb (2) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 19, 2021, 6 p.m. 8.7 ppb (9) 3.5 ppb (4) 8.5 ppb (9) 5.0 ppb (5) 3.9 ppb (4) N/A 23.0 ppb (22) 0.15 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2021, 5 p.m. 26.3 ppb (25) 12.6 ppb (12) 23.9 ppb (23) 14.0 ppb (14) 10.7 ppb (11) 0.0 ppb (0) N/A 0.22 ppb (3) N/A 5.0 μg/m3 (21) 25.0
 
Jan. 19, 2021, 4 p.m. 69.6 ppb (68) 42.8 ppb (41) 62.2 ppb (60) 27.0 ppb (26) 20.9 ppb (20) 1.0 ppb (2) 5.0 ppb (5) 0.44 ppb (5) N/A 9.0 μg/m3 (38) 68.0
 
Jan. 19, 2021, 3 p.m. 66.5 ppb (65) 38.6 ppb (37) 59.7 ppb (58) 28.0 ppb (27) 22.4 ppb (22) 1.0 ppb (2) 1.0 ppb (1) 0.47 ppb (6) N/A 10.0 μg/m3 (42) 65.0
 
Jan. 19, 2021, 2 p.m. 59.5 ppb (57) 31.7 ppb (30) 54.0 ppb (51) 28.0 ppb (27) 22.3 ppb (22) 1.0 ppb (2) 0.0 ppb (0) 0.47 ppb (6) N/A 7.0 μg/m3 (30) 57.0
 
Jan. 19, 2021, 1 p.m. 58.2 ppb (56) 30.6 ppb (29) 53.6 ppb (51) 28.0 ppb (27) 22.7 ppb (22) 1.0 ppb (2) 0.0 ppb (0) 0.4 ppb (5) N/A 8.0 μg/m3 (34) 56.0
 
Jan. 19, 2021, noon 47.1 ppb (45) 20.2 ppb (20) 42.3 ppb (40) 27.0 ppb (26) 22.0 ppb (21) 1.0 ppb (2) 0.0 ppb (0) 0.33 ppb (4) N/A 8.0 μg/m3 (34) 45.0
 
Jan. 19, 2021, 11 a.m. 30.5 ppb (29) 6.8 ppb (7) 27.3 ppb (26) 24.0 ppb (23) 18.6 ppb (18) 0.0 ppb (0) 2.0 ppb (2) 0.25 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 19, 2021, 10 a.m. 19.8 ppb (19) 2.6 ppb (3) 18.1 ppb (18) 17.0 ppb (17) 13.6 ppb (13) 0.0 ppb (0) 6.0 ppb (6) 0.18 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Jan. 19, 2021, 9 a.m. 13.0 ppb (13) 1.2 ppb (2) 10.0 ppb (10) 12.0 ppb (12) 8.0 ppb (8) 0.0 ppb (0) 12.0 ppb (12) 0.18 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2021, 8 a.m. 13.4 ppb (13) 1.6 ppb (2) 11.2 ppb (11) 12.0 ppb (12) 8.5 ppb (9) 0.0 ppb (0) 12.0 ppb (12) 0.16 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2021, 7 a.m. 13.8 ppb (14) 1.0 ppb (1) 11.3 ppb (11) 13.0 ppb (13) 8.8 ppb (9) 0.0 ppb (0) 15.0 ppb (14) 0.17 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 19, 2021, 6 a.m. 9.5 ppb (9) 0.6 ppb (1) 8.3 ppb (8) 9.0 ppb (9) 6.3 ppb (6) 0.0 ppb (0) 21.0 ppb (20) 0.18 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2021, 5 a.m. 5.0 ppb (5) 0.0 ppb (0) 4.5 ppb (5) 5.0 ppb (5) 3.6 ppb (4) 0.0 ppb (0) 28.0 ppb (26) 0.15 ppb (2) N/A 6.0 μg/m3 (25) 26.0
 
Jan. 19, 2021, 4 a.m. 5.9 ppb (6) -0.1 ppb (0) 5.6 ppb (6) 6.0 ppb (6) 4.5 ppb (5) 0.0 ppb (0) 27.0 ppb (25) 0.15 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2021, 3 a.m. 6.0 ppb (6) -0.1 ppb (0) 5.6 ppb (6) 6.0 ppb (6) 4.6 ppb (5) 0.0 ppb (0) 28.0 ppb (26) 0.15 ppb (2) N/A 5.0 μg/m3 (21) 26.0
 
Jan. 19, 2021, 2 a.m. 8.4 ppb (8) 0.1 ppb (1) 7.6 ppb (8) 8.0 ppb (8) 6.3 ppb (6) 0.0 ppb (0) 26.0 ppb (25) 0.15 ppb (2) N/A 3.0 μg/m3 (13) 25.0
 
Jan. 19, 2021, 1 a.m. 6.7 ppb (7) 0.2 ppb (1) 6.1 ppb (6) 7.0 ppb (7) 5.0 ppb (5) 0.0 ppb (0) 28.0 ppb (26) 0.15 ppb (2) N/A 3.0 μg/m3 (13) 26.0
 
Jan. 19, 2021, midnight 4.2 ppb (4) 0.2 ppb (1) 3.8 ppb (4) 4.0 ppb (4) 2.7 ppb (3) 0.0 ppb (0) 32.0 ppb (30) 0.14 ppb (2) N/A 2.0 μg/m3 (9) 30.0
 
Jan. 18, 2021, 11 p.m. 3.4 ppb (4) 0.6 ppb (1) 3.1 ppb (3) 3.0 ppb (3) 2.0 ppb (2) 0.0 ppb (0) 34.0 ppb (32) 0.13 ppb (2) N/A 3.0 μg/m3 (13) 32.0
 
Jan. 18, 2021, 10 p.m. 3.3 ppb (4) 0.8 ppb (1) 3.0 ppb (3) 3.0 ppb (3) 1.7 ppb (2) 0.0 ppb (0) 33.0 ppb (31) 0.13 ppb (2) N/A 5.0 μg/m3 (21) 31.0
 
Jan. 18, 2021, 9 p.m. 3.5 ppb (4) 0.7 ppb (1) 3.5 ppb (4) 3.0 ppb (3) 1.8 ppb (2) 0.0 ppb (0) 31.0 ppb (29) 0.13 ppb (2) N/A 5.0 μg/m3 (21) 29.0
 
Jan. 18, 2021, 8 p.m. 3.8 ppb (4) 1.0 ppb (1) 4.0 ppb (4) 3.0 ppb (3) 2.0 ppb (2) 0.0 ppb (0) 28.0 ppb (26) 0.14 ppb (2) N/A 4.0 μg/m3 (17) 26.0
 
Jan. 18, 2021, 7 p.m. 9.2 ppb (9) 3.4 ppb (4) 8.6 ppb (9) 6.0 ppb (6) 4.2 ppb (4) 0.0 ppb (0) 24.0 ppb (23) 0.16 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Jan. 18, 2021, 6 p.m. 39.6 ppb (38) 22.0 ppb (21) 35.9 ppb (34) 18.0 ppb (17) 13.1 ppb (13) 1.0 ppb (2) 14.0 ppb (13) 0.29 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 18, 2021, 5 p.m. 68.4 ppb (67) 45.3 ppb (43) 62.8 ppb (61) 23.0 ppb (22) 18.0 ppb (17) 1.0 ppb (2) 6.0 ppb (6) 0.41 ppb (5) N/A 22.0 μg/m3 (72) 72.0
 
Jan. 18, 2021, 4 p.m. 107.0 ppb (103) 79.6 ppb (79) 100.9 ppb (101) 27.0 ppb (26) 21.2 ppb (20) 2.0 ppb (3) 3.0 ppb (3) 0.58 ppb (7) N/A 18.0 μg/m3 (64) 103.0
 
Jan. 18, 2021, 3 p.m. 85.9 ppb (85) 58.8 ppb (57) 82.3 ppb (82) 27.0 ppb (26) 22.0 ppb (21) 1.0 ppb (2) 1.0 ppb (1) 0.47 ppb (6) N/A 15.0 μg/m3 (58) 85.0
 
Jan. 18, 2021, 2 p.m. 46.5 ppb (44) 25.3 ppb (24) 44.8 ppb (43) 21.0 ppb (20) 17.9 ppb (17) 1.0 ppb (2) 1.0 ppb (1) 0.35 ppb (4) N/A 18.0 μg/m3 (64) 64.0
 
Jan. 18, 2021, 1 p.m. 40.1 ppb (38) 19.1 ppb (19) 37.8 ppb (36) 21.0 ppb (20) 17.2 ppb (17) 0.0 ppb (0) 1.0 ppb (1) 0.31 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 18, 2021, noon 39.3 ppb (38) 19.0 ppb (18) 37.4 ppb (36) 20.0 ppb (19) 17.0 ppb (17) 1.0 ppb (2) 1.0 ppb (1) 0.3 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 18, 2021, 11 a.m. 46.8 ppb (45) 26.8 ppb (26) 44.6 ppb (43) 20.0 ppb (19) 16.8 ppb (16) 1.0 ppb (2) 1.0 ppb (1) 0.35 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 18, 2021, 10 a.m. 31.3 ppb (30) 12.3 ppb (12) 26.4 ppb (25) 19.0 ppb (18) 15.6 ppb (15) 0.0 ppb (0) 1.0 ppb (1) 0.3 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
Jan. 18, 2021, 9 a.m. 23.0 ppb (22) 5.3 ppb (5) 16.0 ppb (16) 18.0 ppb (17) 11.8 ppb (12) 0.0 ppb (0) 3.0 ppb (3) 0.3 ppb (4) N/A 16.0 μg/m3 (60) 60.0
 
Jan. 18, 2021, 8 a.m. 32.4 ppb (31) 13.6 ppb (13) 25.3 ppb (24) 19.0 ppb (18) 14.0 ppb (14) 0.0 ppb (0) 2.0 ppb (2) 0.36 ppb (5) N/A 19.0 μg/m3 (66) 66.0
 
Jan. 18, 2021, 7 a.m. 11.2 ppb (11) 1.1 ppb (2) 10.4 ppb (10) 10.0 ppb (10) 8.1 ppb (8) 0.0 ppb (0) 12.0 ppb (12) 0.2 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 18, 2021, 6 a.m. 11.4 ppb (11) 0.6 ppb (1) 10.8 ppb (11) 11.0 ppb (11) 8.6 ppb (9) 0.0 ppb (0) 11.0 ppb (11) 0.21 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 18, 2021, 5 a.m. 10.0 ppb (10) 0.9 ppb (1) 10.0 ppb (10) 9.0 ppb (9) 7.9 ppb (8) 0.0 ppb (0) 12.0 ppb (12) 0.2 ppb (3) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 18, 2021, 4 a.m. 10.2 ppb (10) 0.6 ppb (1) 10.2 ppb (10) 10.0 ppb (10) 8.3 ppb (8) 0.0 ppb (0) 12.0 ppb (12) 0.2 ppb (3) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 18, 2021, 3 a.m. 10.9 ppb (11) 1.5 ppb (2) 11.1 ppb (11) 9.0 ppb (9) 7.9 ppb (8) 0.0 ppb (0) 13.0 ppb (13) 0.2 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 18, 2021, 2 a.m. 7.3 ppb (7) 0.0 ppb (0) 7.6 ppb (8) 7.0 ppb (7) 6.1 ppb (6) 0.0 ppb (0) 16.0 ppb (15) 0.18 ppb (3) N/A 14.0 μg/m3 (55) 55.0
 
Jan. 18, 2021, 1 a.m. 6.3 ppb (6) 0.0 ppb (0) 6.3 ppb (6) 6.0 ppb (6) 5.1 ppb (5) 0.0 ppb (0) 18.0 ppb (17) 0.17 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 18, 2021, midnight 4.3 ppb (5) 0.0 ppb (0) 4.8 ppb (5) 4.0 ppb (4) 3.6 ppb (4) 0.0 ppb (0) 21.0 ppb (20) 0.15 ppb (2) N/A 7.0 μg/m3 (30) 30.0
 
Jan. 17, 2021, 11 p.m. 3.5 ppb (4) 0.5 ppb (1) 3.9 ppb (4) 3.0 ppb (3) 2.6 ppb (3) 0.0 ppb (0) 22.0 ppb (21) 0.14 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 17, 2021, 10 p.m. 4.4 ppb (5) 1.0 ppb (1) 4.8 ppb (5) 3.0 ppb (3) 2.9 ppb (3) 0.0 ppb (0) 22.0 ppb (21) 0.14 ppb (2) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 17, 2021, 9 p.m. 7.9 ppb (8) 2.3 ppb (3) 8.4 ppb (8) 6.0 ppb (6) 4.9 ppb (5) 0.0 ppb (0) 19.0 ppb (18) 0.18 ppb (3) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 17, 2021, 8 p.m. 6.4 ppb (7) 1.2 ppb (2) 7.3 ppb (7) 5.0 ppb (5) 4.9 ppb (5) 0.0 ppb (0) 19.0 ppb (18) 0.17 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 17, 2021, 7 p.m. 8.5 ppb (9) 2.1 ppb (2) 9.8 ppb (10) 6.0 ppb (6) 6.4 ppb (7) 0.0 ppb (0) 20.0 ppb (19) 0.17 ppb (3) N/A N/A 19.0
 
Jan. 17, 2021, 6 p.m. 14.5 ppb (14) 6.4 ppb (7) 15.3 ppb (15) 8.0 ppb (8) 7.5 ppb (8) 0.0 ppb (0) 15.0 ppb (14) 0.21 ppb (3) N/A 20.0 μg/m3 (68) 68.0
 
Jan. 17, 2021, 5 p.m. 22.1 ppb (21) 11.9 ppb (12) 22.1 ppb (21) 10.0 ppb (10) 8.8 ppb (9) 0.0 ppb (0) 7.0 ppb (7) 0.23 ppb (3) N/A 20.0 μg/m3 (68) 68.0
 
Jan. 17, 2021, 4 p.m. 25.9 ppb (25) 15.1 ppb (15) 26.2 ppb (25) 11.0 ppb (11) 9.4 ppb (9) 0.0 ppb (0) 3.0 ppb (3) 0.24 ppb (3) N/A 20.0 μg/m3 (68) 68.0
 
Jan. 17, 2021, 3 p.m. 36.6 ppb (35) 21.1 ppb (20) 30.3 ppb (29) 15.0 ppb (15) 13.0 ppb (13) 1.0 ppb (2) 1.0 ppb (1) 0.26 ppb (4) N/A 22.0 μg/m3 (72) 72.0
 
Jan. 17, 2021, 2 p.m. 48.2 ppb (46) 28.7 ppb (28) 40.5 ppb (39) 19.0 ppb (18) 14.6 ppb (14) 1.0 ppb (2) 0.0 ppb (0) 0.37 ppb (5) N/A 20.0 μg/m3 (68) 68.0
 
Jan. 17, 2021, 1 p.m. 33.0 ppb (32) 18.3 ppb (18) 33.1 ppb (32) 15.0 ppb (15) 13.4 ppb (13) 0.0 ppb (0) 0.0 ppb (0) 0.35 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 17, 2021, noon 31.5 ppb (30) 16.7 ppb (16) 27.5 ppb (26) 15.0 ppb (15) 13.0 ppb (13) 0.0 ppb (0) 0.0 ppb (0) 0.26 ppb (4) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 17, 2021, 11 a.m. 32.3 ppb (31) 16.3 ppb (16) 31.3 ppb (30) 16.0 ppb (16) 15.1 ppb (15) 0.0 ppb (0) 0.0 ppb (0) 0.27 ppb (4) N/A 16.0 μg/m3 (60) 60.0
 
Jan. 17, 2021, 10 a.m. 25.2 ppb (24) 9.5 ppb (9) 23.2 ppb (22) 16.0 ppb (16) 13.9 ppb (14) 0.0 ppb (0) 0.0 ppb (0) 0.27 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 17, 2021, 9 a.m. 29.7 ppb (29) 10.5 ppb (10) 28.4 ppb (27) 19.0 ppb (18) 17.1 ppb (17) 0.0 ppb (0) 1.0 ppb (1) 0.34 ppb (4) N/A 25.0 μg/m3 (79) 79.0
 
Jan. 17, 2021, 8 a.m. 26.8 ppb (26) 5.9 ppb (6) 27.3 ppb (26) 21.0 ppb (20) 19.0 ppb (18) 0.0 ppb (0) 1.0 ppb (1) 0.37 ppb (5) N/A 23.0 μg/m3 (74) 74.0
 
Jan. 17, 2021, 7 a.m. 28.3 ppb (27) 5.6 ppb (6) 27.5 ppb (26) 23.0 ppb (22) 20.0 ppb (19) 0.0 ppb (0) 1.0 ppb (1) 0.38 ppb (5) N/A 25.0 μg/m3 (79) 79.0
 
Jan. 17, 2021, 6 a.m. 36.0 ppb (34) 11.3 ppb (11) 34.7 ppb (33) 25.0 ppb (24) 20.9 ppb (20) 0.0 ppb (0) 1.0 ppb (1) 0.42 ppb (5) N/A 25.0 μg/m3 (79) 79.0
 
Jan. 17, 2021, 5 a.m. 47.1 ppb (45) 19.2 ppb (19) 43.8 ppb (42) 28.0 ppb (27) 23.4 ppb (23) 1.0 ppb (2) 1.0 ppb (1) 0.49 ppb (6) N/A 19.0 μg/m3 (66) 66.0
 
Jan. 17, 2021, 4 a.m. 83.4 ppb (83) 53.8 ppb (51) 74.0 ppb (73) 30.0 ppb (29) 26.2 ppb (25) 1.0 ppb (2) 1.0 ppb (1) 0.74 ppb (8) N/A 26.0 μg/m3 (81) 83.0
 
Jan. 17, 2021, 3 a.m. 35.6 ppb (34) 7.6 ppb (8) 37.8 ppb (36) 28.0 ppb (27) 23.2 ppb (22) 0.0 ppb (0) 1.0 ppb (1) 0.45 ppb (6) N/A 22.0 μg/m3 (72) 72.0
 
Jan. 17, 2021, 2 a.m. 35.7 ppb (34) 7.8 ppb (8) 33.5 ppb (32) 28.0 ppb (27) 24.4 ppb (24) 0.0 ppb (0) 1.0 ppb (1) 0.42 ppb (5) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 17, 2021, 1 a.m. 25.8 ppb (25) 2.0 ppb (2) 24.4 ppb (24) 24.0 ppb (23) 19.8 ppb (19) 0.0 ppb (0) 6.0 ppb (6) 0.31 ppb (4) N/A 18.0 μg/m3 (64) 64.0
 
Jan. 17, 2021, midnight 25.5 ppb (25) 3.1 ppb (3) 25.2 ppb (24) 22.0 ppb (21) 19.5 ppb (19) 0.0 ppb (0) 8.0 ppb (8) 0.31 ppb (4) N/A 18.0 μg/m3 (64) 64.0
 
Jan. 16, 2021, 11 p.m. 20.7 ppb (20) 5.2 ppb (5) 20.8 ppb (20) 15.0 ppb (15) 13.5 ppb (13) 0.0 ppb (0) 15.0 ppb (14) 0.3 ppb (4) N/A 19.0 μg/m3 (66) 66.0
 
Jan. 16, 2021, 10 p.m. 21.6 ppb (21) 6.2 ppb (6) 21.8 ppb (21) 15.0 ppb (15) 13.5 ppb (13) 0.0 ppb (0) 14.0 ppb (13) 0.28 ppb (4) N/A 19.0 μg/m3 (66) 66.0
 
Jan. 16, 2021, 9 p.m. 19.5 ppb (19) 6.1 ppb (6) 19.3 ppb (19) 13.0 ppb (13) 11.5 ppb (11) 0.0 ppb (0) 15.0 ppb (14) 0.26 ppb (4) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 16, 2021, 8 p.m. 18.7 ppb (18) 7.5 ppb (8) 18.6 ppb (18) 11.0 ppb (11) 9.7 ppb (10) 0.0 ppb (0) 16.0 ppb (15) 0.26 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 16, 2021, 7 p.m. 18.9 ppb (18) 9.3 ppb (9) 18.8 ppb (18) 10.0 ppb (10) 8.2 ppb (8) 0.0 ppb (0) 16.0 ppb (15) 0.25 ppb (3) N/A 14.0 μg/m3 (55) 55.0
 
Jan. 16, 2021, 6 p.m. 25.5 ppb (25) 12.8 ppb (13) 25.3 ppb (24) 13.0 ppb (13) 10.7 ppb (11) 0.0 ppb (0) 10.0 ppb (10) 0.26 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 16, 2021, 5 p.m. 30.6 ppb (29) 14.5 ppb (14) 30.2 ppb (29) 16.0 ppb (16) 13.5 ppb (13) 0.0 ppb (0) 8.0 ppb (8) 0.3 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 16, 2021, 4 p.m. 24.1 ppb (23) 8.0 ppb (8) 24.4 ppb (24) 16.0 ppb (16) 13.8 ppb (14) 0.0 ppb (0) 7.0 ppb (7) 0.28 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 16, 2021, 3 p.m. 17.6 ppb (17) 1.4 ppb (2) 17.7 ppb (17) 16.0 ppb (16) 13.9 ppb (14) 0.0 ppb (0) 6.0 ppb (6) 0.24 ppb (3) N/A 16.0 μg/m3 (60) 60.0
 
Jan. 16, 2021, 2 p.m. 11.3 ppb (11) -0.2 ppb (0) 11.9 ppb (12) 12.0 ppb (12) 10.2 ppb (10) 0.0 ppb (0) 11.0 ppb (11) 0.19 ppb (3) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 16, 2021, 1 p.m. 15.5 ppb (15) 0.2 ppb (1) 15.6 ppb (15) 15.0 ppb (15) 13.2 ppb (13) 0.0 ppb (0) 7.0 ppb (7) 0.22 ppb (3) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 16, 2021, noon 20.3 ppb (20) 1.7 ppb (2) 20.5 ppb (20) 19.0 ppb (18) 16.2 ppb (16) 0.0 ppb (0) 2.0 ppb (2) 0.25 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 16, 2021, 11 a.m. 36.7 ppb (35) 16.2 ppb (16) 35.4 ppb (34) 20.0 ppb (19) 17.6 ppb (17) 0.0 ppb (0) 1.0 ppb (1) 0.32 ppb (4) N/A 22.0 μg/m3 (72) 72.0
 
Jan. 16, 2021, 10 a.m. 43.4 ppb (41) 21.6 ppb (21) 41.7 ppb (40) 22.0 ppb (21) 18.0 ppb (17) 1.0 ppb (2) 1.0 ppb (1) 0.34 ppb (4) N/A 19.0 μg/m3 (66) 66.0
 
Jan. 16, 2021, 9 a.m. 32.1 ppb (31) 12.3 ppb (12) 33.5 ppb (32) 20.0 ppb (19) 18.1 ppb (18) 0.0 ppb (0) 0.0 ppb (0) 0.31 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
Jan. 16, 2021, 8 a.m. 24.2 ppb (23) 4.0 ppb (4) 25.1 ppb (24) 20.0 ppb (19) 17.5 ppb (17) 0.0 ppb (0) 1.0 ppb (1) 0.27 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 16, 2021, 7 a.m. 22.1 ppb (21) 3.4 ppb (4) 21.8 ppb (21) 19.0 ppb (18) 15.9 ppb (15) 0.0 ppb (0) 3.0 ppb (3) 0.24 ppb (3) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 16, 2021, 6 a.m. 24.5 ppb (24) 4.2 ppb (4) 24.3 ppb (23) 20.0 ppb (19) 17.7 ppb (17) 0.0 ppb (0) 1.0 ppb (1) 0.31 ppb (4) N/A 18.0 μg/m3 (64) 64.0
 
Jan. 16, 2021, 5 a.m. 23.5 ppb (23) 3.9 ppb (4) 23.1 ppb (22) 20.0 ppb (19) 16.8 ppb (16) 0.0 ppb (0) 2.0 ppb (2) 0.28 ppb (4) N/A 16.0 μg/m3 (60) 60.0
 
Jan. 16, 2021, 4 a.m. 22.0 ppb (21) 3.4 ppb (4) 22.0 ppb (21) 19.0 ppb (18) 16.1 ppb (16) 0.0 ppb (0) 3.0 ppb (3) 0.28 ppb (4) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 16, 2021, 3 a.m. 25.3 ppb (24) 5.3 ppb (5) 24.9 ppb (24) 20.0 ppb (19) 17.1 ppb (17) 0.0 ppb (0) 2.0 ppb (2) 0.26 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 16, 2021, 2 a.m. 28.5 ppb (27) 6.3 ppb (6) 27.9 ppb (27) 22.0 ppb (21) 19.0 ppb (18) 0.0 ppb (0) 1.0 ppb (1) 0.3 ppb (4) N/A 16.0 μg/m3 (60) 60.0
 
Jan. 16, 2021, 1 a.m. 30.4 ppb (29) 7.0 ppb (7) 30.7 ppb (29) 23.0 ppb (22) 20.2 ppb (20) 0.0 ppb (0) 1.0 ppb (1) 0.3 ppb (4) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 16, 2021, midnight 20.7 ppb (20) 2.3 ppb (3) 20.1 ppb (19) 18.0 ppb (17) 15.6 ppb (15) 0.0 ppb (0) 8.0 ppb (8) 0.25 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 15, 2021, 11 p.m. 19.0 ppb (18) 3.3 ppb (4) 19.2 ppb (19) 16.0 ppb (16) 13.8 ppb (14) 0.0 ppb (0) 12.0 ppb (12) 0.26 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 15, 2021, 10 p.m. 14.0 ppb (14) 1.6 ppb (2) 14.4 ppb (14) 12.0 ppb (12) 10.9 ppb (11) 0.0 ppb (0) 16.0 ppb (15) 0.2 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 15, 2021, 9 p.m. 28.1 ppb (27) 10.0 ppb (10) 27.2 ppb (26) 18.0 ppb (17) 15.1 ppb (15) 0.0 ppb (0) 11.0 ppb (11) 0.25 ppb (3) N/A 14.0 μg/m3 (55) 55.0
 
Jan. 15, 2021, 8 p.m. 27.9 ppb (27) 7.9 ppb (8) 27.5 ppb (26) 20.0 ppb (19) 16.9 ppb (16) 0.0 ppb (0) 13.0 ppb (13) 0.28 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 15, 2021, 7 p.m. 29.7 ppb (29) 10.0 ppb (10) 29.2 ppb (28) 20.0 ppb (19) 16.8 ppb (16) 0.0 ppb (0) 14.0 ppb (13) 0.29 ppb (4) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 15, 2021, 6 p.m. 36.1 ppb (35) 15.1 ppb (15) 35.0 ppb (34) 21.0 ppb (20) 17.8 ppb (17) 1.0 ppb (2) 14.0 ppb (13) 0.29 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 15, 2021, 5 p.m. 42.1 ppb (40) 18.1 ppb (18) 42.0 ppb (40) 24.0 ppb (23) 20.3 ppb (20) 1.0 ppb (2) 11.0 ppb (11) 0.29 ppb (4) N/A 9.0 μg/m3 (38) 40.0
 
Jan. 15, 2021, 4 p.m. 101.8 ppb (102) 66.7 ppb (65) 86.3 ppb (86) 35.0 ppb (34) 26.8 ppb (26) 2.0 ppb (3) 5.0 ppb (5) 0.59 ppb (7) N/A 15.0 μg/m3 (58) 102.0
 
Jan. 15, 2021, 3 p.m. 130.7 ppb (107) 94.8 ppb (95) 127.9 ppb (107) 36.0 ppb (34) 29.4 ppb (28) 2.0 ppb (3) 1.0 ppb (1) 0.79 ppb (10) N/A 15.0 μg/m3 (58) 107.0
 
Jan. 15, 2021, 2 p.m. 76.5 ppb (75) 44.2 ppb (42) 76.5 ppb (75) 32.0 ppb (31) 27.2 ppb (26) 1.0 ppb (2) 1.0 ppb (1) 0.49 ppb (6) N/A 7.0 μg/m3 (30) 75.0
 
Jan. 15, 2021, 1 p.m. 46.0 ppb (44) 16.4 ppb (16) 42.5 ppb (41) 30.0 ppb (29) 24.3 ppb (23) 0.0 ppb (0) 1.0 ppb (1) 0.34 ppb (4) N/A 10.0 μg/m3 (42) 44.0
 
Jan. 15, 2021, noon 42.5 ppb (41) 16.9 ppb (16) 37.5 ppb (36) 26.0 ppb (25) 21.0 ppb (20) 0.0 ppb (0) 1.0 ppb (1) 0.3 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 15, 2021, 11 a.m. 39.5 ppb (38) 16.0 ppb (16) 37.8 ppb (36) 23.0 ppb (22) 20.1 ppb (19) 0.0 ppb (0) 0.0 ppb (0) 0.26 ppb (4) N/A 7.0 μg/m3 (30) 38.0
 
Jan. 15, 2021, 10 a.m. 30.7 ppb (29) 8.9 ppb (9) 22.7 ppb (22) 22.0 ppb (21) 15.8 ppb (15) 0.0 ppb (0) 2.0 ppb (2) 0.24 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 15, 2021, 9 a.m. 21.7 ppb (21) 1.5 ppb (2) 20.3 ppb (20) 20.0 ppb (19) 16.2 ppb (16) 0.0 ppb (0) 3.0 ppb (3) 0.24 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 15, 2021, 8 a.m. 28.8 ppb (28) 7.0 ppb (7) 21.9 ppb (21) 22.0 ppb (21) 15.9 ppb (15) 0.0 ppb (0) 5.0 ppb (5) 0.28 ppb (4) N/A 10.0 μg/m3 (42) 42.0