ID: 146

AQSQID: 060370016

Site Name: Glendora - Laurel

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

Updated: Jan. 28, 2022, 12:37 p.m.

Location: Glendora (Downtown), CA

Reporting: True, Located: True

Current AQI: 28.0

Glendora (Downtown) CA, US: 34.1439, -117.8508

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 28, 2022, 11 a.m. 1.8 ppb (2) -0.7 ppb (0) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (28) 0.17 ppb (3) 6.0 μg/m3 (6) 2.5 μg/m3 (11) 28.0
 
Jan. 28, 2022, 10 a.m. 0.7 ppb (1) -0.7 ppb (0) N/A 1.0 ppb (1) N/A N/A 31.0 ppb (29) 0.15 ppb (2) 7.0 μg/m3 (7) 2.2 μg/m3 (10) 29.0
 
Jan. 28, 2022, 9 a.m. 1.9 ppb (2) -0.7 ppb (0) N/A 3.0 ppb (3) N/A N/A 29.0 ppb (27) 0.16 ppb (3) 6.0 μg/m3 (6) 3.2 μg/m3 (14) 27.0
 
Jan. 28, 2022, 8 a.m. 1.2 ppb (2) -0.7 ppb (0) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (28) 0.16 ppb (3) 2.0 μg/m3 (2) 3.0 μg/m3 (13) 28.0
 
Jan. 28, 2022, 7 a.m. 2.0 ppb (2) -0.7 ppb (0) N/A 3.0 ppb (3) N/A N/A 30.0 ppb (28) 0.16 ppb (3) 0.0 μg/m3 (0) 5.1 μg/m3 (22) 28.0
 
Jan. 28, 2022, 6 a.m. 1.5 ppb (2) -0.7 ppb (0) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (28) 0.19 ppb (3) 0.0 μg/m3 (0) 3.5 μg/m3 (15) 28.0
 
Jan. 28, 2022, 5 a.m. 1.9 ppb (2) -0.7 ppb (0) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (32) 0.18 ppb (3) 0.0 μg/m3 (0) 2.2 μg/m3 (10) 32.0
 
Jan. 28, 2022, 4 a.m. 2.2 ppb (3) -0.7 ppb (0) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (33) 0.19 ppb (3) 3.0 μg/m3 (3) 7.3 μg/m3 (31) 33.0
 
Jan. 28, 2022, 3 a.m. 3.6 ppb (4) -0.7 ppb (0) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (32) 0.2 ppb (3) 8.0 μg/m3 (8) 5.3 μg/m3 (23) 32.0
 
Jan. 28, 2022, 2 a.m. 8.2 ppb (8) -0.7 ppb (0) N/A 9.0 ppb (9) N/A N/A 32.0 ppb (30) 0.24 ppb (3) 15.0 μg/m3 (14) 5.3 μg/m3 (23) 30.0
 
Jan. 28, 2022, 1 a.m. 11.4 ppb (11) -0.6 ppb (0) N/A 12.0 ppb (12) N/A N/A 30.0 ppb (28) 0.27 ppb (4) 18.0 μg/m3 (17) 7.8 μg/m3 (33) 33.0
 
Jan. 28, 2022, midnight 13.6 ppb (13) 0.1 ppb (1) N/A 14.0 ppb (14) N/A N/A 37.0 ppb (35) 0.26 ppb (4) 15.0 μg/m3 (14) 3.3 μg/m3 (14) 35.0
 
Jan. 27, 2022, 11 p.m. 13.0 ppb (13) 1.3 ppb (2) N/A 12.0 ppb (12) N/A N/A 39.0 ppb (37) 0.25 ppb (3) 18.0 μg/m3 (17) 1.7 μg/m3 (8) 37.0
 
Jan. 27, 2022, 10 p.m. 12.5 ppb (12) 2.0 ppb (2) N/A 11.0 ppb (11) N/A N/A 39.0 ppb (37) 0.25 ppb (3) 20.0 μg/m3 (19) 3.6 μg/m3 (16) 37.0
 
Jan. 27, 2022, 9 p.m. 10.3 ppb (10) 1.9 ppb (2) N/A 8.0 ppb (8) N/A N/A 39.0 ppb (37) 0.22 ppb (3) 20.0 μg/m3 (19) 1.5 μg/m3 (7) 37.0
 
Jan. 27, 2022, 8 p.m. 7.7 ppb (8) 1.4 ppb (2) N/A 6.0 ppb (6) N/A N/A 40.0 ppb (38) 0.2 ppb (3) 30.0 μg/m3 (28) -3.1 μg/m3 (0) 38.0
 
Jan. 27, 2022, 7 p.m. 9.3 ppb (9) 2.0 ppb (2) N/A 7.0 ppb (7) N/A N/A 38.0 ppb (36) 0.21 ppb (3) 23.0 μg/m3 (22) -1.1 μg/m3 (0) 36.0
 
Jan. 27, 2022, 6 p.m. 22.2 ppb (21) 6.9 ppb (7) N/A 15.0 ppb (15) N/A N/A 27.0 ppb (25) 0.3 ppb (4) 24.0 μg/m3 (23) 3.1 μg/m3 (13) 25.0
 
Jan. 27, 2022, 5 p.m. 11.7 ppb (12) 2.7 ppb (3) N/A 9.0 ppb (9) N/A N/A 30.0 ppb (28) 0.24 ppb (3) 37.0 μg/m3 (35) 3.7 μg/m3 (16) 35.0
 
Jan. 27, 2022, 4 p.m. 12.8 ppb (13) 2.3 ppb (3) N/A 11.0 ppb (11) N/A N/A 25.0 ppb (24) 0.26 ppb (4) 27.0 μg/m3 (25) 4.9 μg/m3 (21) 25.0
 
Jan. 27, 2022, 3 p.m. 9.6 ppb (10) 0.4 ppb (1) N/A 9.0 ppb (9) N/A N/A 22.0 ppb (21) 0.22 ppb (3) 14.0 μg/m3 (13) 6.2 μg/m3 (26) 26.0
 
Jan. 27, 2022, 2 p.m. 5.4 ppb (6) -0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A 25.0 ppb (24) 0.16 ppb (3) 2.0 μg/m3 (2) 1.5 μg/m3 (7) 24.0
 
Jan. 27, 2022, 1 p.m. 2.6 ppb (3) -0.6 ppb (0) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (30) 0.15 ppb (2) 7.0 μg/m3 (7) -0.1 μg/m3 (0) 30.0
 
Jan. 27, 2022, noon 0.5 ppb (1) -0.6 ppb (0) N/A 1.0 ppb (1) N/A N/A 33.0 ppb (31) 0.14 ppb (2) 3.0 μg/m3 (3) 0.3 μg/m3 (2) 31.0
 
Jan. 27, 2022, 11 a.m. 0.7 ppb (1) -0.8 ppb (0) N/A 1.0 ppb (1) N/A N/A 31.0 ppb (29) 0.14 ppb (2) 4.0 μg/m3 (4) -1.4 μg/m3 (0) 29.0
 
Jan. 27, 2022, 10 a.m. 1.4 ppb (2) -0.7 ppb (0) N/A 2.0 ppb (2) N/A N/A 29.0 ppb (27) 0.15 ppb (2) 6.0 μg/m3 (6) -1.1 μg/m3 (0) 27.0
 
Jan. 27, 2022, 9 a.m. 1.8 ppb (2) -0.8 ppb (0) N/A 3.0 ppb (3) N/A N/A 31.0 ppb (29) 0.15 ppb (2) 4.0 μg/m3 (4) 1.5 μg/m3 (7) 29.0
 
Jan. 27, 2022, 8 a.m. 1.1 ppb (2) -0.7 ppb (0) N/A 2.0 ppb (2) N/A N/A 32.0 ppb (30) 0.15 ppb (2) 4.0 μg/m3 (4) 4.2 μg/m3 (18) 30.0
 
Jan. 27, 2022, 7 a.m. 2.1 ppb (2) -0.7 ppb (0) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (30) 0.16 ppb (3) 2.0 μg/m3 (2) 5.6 μg/m3 (24) 30.0
 
Jan. 27, 2022, 6 a.m. 1.8 ppb (2) -0.8 ppb (0) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (30) 0.16 ppb (3) 0.0 μg/m3 (0) 4.6 μg/m3 (20) 30.0
 
Jan. 27, 2022, 5 a.m. 2.2 ppb (3) -0.8 ppb (0) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (33) 0.16 ppb (3) 1.0 μg/m3 (1) 0.8 μg/m3 (4) 33.0
 
Jan. 27, 2022, 4 a.m. 2.4 ppb (3) -0.8 ppb (0) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (35) 0.16 ppb (3) 5.0 μg/m3 (5) 0.1 μg/m3 (1) 35.0
 
Jan. 27, 2022, 3 a.m. 2.6 ppb (3) -0.8 ppb (0) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (36) 0.16 ppb (3) 8.0 μg/m3 (8) -0.4 μg/m3 (0) 36.0
 
Jan. 27, 2022, 2 a.m. 4.3 ppb (5) -0.7 ppb (0) N/A 5.0 ppb (5) N/A N/A 36.0 ppb (34) 0.17 ppb (3) 9.0 μg/m3 (9) 0.2 μg/m3 (1) 34.0
 
Jan. 27, 2022, 1 a.m. 5.3 ppb (5) -0.7 ppb (0) N/A 6.0 ppb (6) N/A N/A 34.0 ppb (32) 0.18 ppb (3) 15.0 μg/m3 (14) 1.2 μg/m3 (5) 32.0
 
Jan. 27, 2022, midnight 5.0 ppb (5) -0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A 41.0 ppb (38) 0.18 ppb (3) 12.0 μg/m3 (12) 0.0 μg/m3 (0) 38.0
 
Jan. 26, 2022, 11 p.m. 4.1 ppb (4) -0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 45.0 ppb (42) 0.17 ppb (3) 12.0 μg/m3 (12) -2.4 μg/m3 (0) 42.0
 
Jan. 26, 2022, 10 p.m. 4.4 ppb (5) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 45.0 ppb (42) 0.17 ppb (3) 13.0 μg/m3 (13) -2.1 μg/m3 (0) 42.0
 
Jan. 26, 2022, 9 p.m. 7.2 ppb (7) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A 44.0 ppb (41) 0.19 ppb (3) 17.0 μg/m3 (16) 0.7 μg/m3 (3) 41.0
 
Jan. 26, 2022, 8 p.m. 10.3 ppb (10) 1.7 ppb (2) N/A 9.0 ppb (9) N/A N/A 41.0 ppb (38) 0.23 ppb (3) 19.0 μg/m3 (18) 3.6 μg/m3 (16) 38.0
 
Jan. 26, 2022, 7 p.m. 15.3 ppb (15) 3.4 ppb (4) N/A 12.0 ppb (12) N/A N/A 36.0 ppb (34) 0.26 ppb (4) 40.0 μg/m3 (38) 6.6 μg/m3 (28) 38.0
 
Jan. 26, 2022, 6 p.m. 19.9 ppb (19) 4.9 ppb (5) N/A 15.0 ppb (15) N/A N/A 29.0 ppb (27) 0.3 ppb (4) 32.0 μg/m3 (30) 6.1 μg/m3 (26) 30.0
 
Jan. 26, 2022, 5 p.m. 26.2 ppb (25) 7.1 ppb (7) N/A 19.0 ppb (18) N/A N/A 23.0 ppb (22) 0.33 ppb (4) 29.0 μg/m3 (27) 2.9 μg/m3 (13) 27.0
 
Jan. 26, 2022, 4 p.m. 8.2 ppb (8) 1.4 ppb (2) N/A 7.0 ppb (7) N/A N/A 28.0 ppb (26) 0.24 ppb (3) 25.0 μg/m3 (24) 1.9 μg/m3 (8) 26.0
 
Jan. 26, 2022, 3 p.m. 4.2 ppb (4) -0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 30.0 ppb (28) 0.2 ppb (3) 27.0 μg/m3 (25) 4.1 μg/m3 (18) 28.0
 
Jan. 26, 2022, 2 p.m. 3.0 ppb (3) -0.6 ppb (0) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (27) 0.16 ppb (3) 7.0 μg/m3 (7) 6.4 μg/m3 (27) 27.0
 
Jan. 26, 2022, 1 p.m. 2.5 ppb (3) -0.7 ppb (0) N/A 3.0 ppb (3) N/A N/A 28.0 ppb (26) 0.17 ppb (3) 5.0 μg/m3 (5) 6.5 μg/m3 (28) 28.0
 
Jan. 26, 2022, noon 2.6 ppb (3) -0.6 ppb (0) N/A 3.0 ppb (3) N/A N/A 28.0 ppb (26) 0.17 ppb (3) 4.0 μg/m3 (4) 3.3 μg/m3 (14) 26.0
 
Jan. 26, 2022, 11 a.m. 1.8 ppb (2) -0.7 ppb (0) N/A 3.0 ppb (3) N/A N/A 30.0 ppb (28) 0.15 ppb (2) 6.0 μg/m3 (6) 2.9 μg/m3 (13) 28.0
 
Jan. 26, 2022, 10 a.m. 3.0 ppb (3) -0.6 ppb (0) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (25) 0.16 ppb (3) 7.0 μg/m3 (7) 5.8 μg/m3 (25) 25.0
 
Jan. 26, 2022, 9 a.m. 3.6 ppb (4) -0.7 ppb (0) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (25) 0.18 ppb (3) 10.0 μg/m3 (10) 6.3 μg/m3 (27) 27.0
 
Jan. 26, 2022, 8 a.m. 3.9 ppb (4) -0.6 ppb (0) N/A 5.0 ppb (5) N/A N/A 25.0 ppb (24) 0.19 ppb (3) 12.0 μg/m3 (12) 3.8 μg/m3 (16) 24.0
 
Jan. 26, 2022, 7 a.m. 7.5 ppb (8) -0.6 ppb (0) N/A 8.0 ppb (8) N/A N/A 23.0 ppb (22) 0.24 ppb (3) 13.0 μg/m3 (13) 6.3 μg/m3 (27) 27.0
 
Jan. 26, 2022, 6 a.m. 7.5 ppb (8) -0.6 ppb (0) N/A 8.0 ppb (8) N/A N/A 24.0 ppb (23) 0.24 ppb (3) 10.0 μg/m3 (10) 8.7 μg/m3 (37) 37.0
 
Jan. 26, 2022, 5 a.m. 12.4 ppb (12) -0.6 ppb (0) N/A 13.0 ppb (13) N/A N/A 20.0 ppb (19) 0.3 ppb (4) 8.0 μg/m3 (8) 6.8 μg/m3 (29) 29.0
 
Jan. 26, 2022, 4 a.m. 14.6 ppb (14) -0.5 ppb (0) N/A 15.0 ppb (15) N/A N/A 21.0 ppb (20) 0.32 ppb (4) 19.0 μg/m3 (18) 16.9 μg/m3 (62) 62.0
 
Jan. 26, 2022, 3 a.m. 15.3 ppb (15) -0.6 ppb (0) N/A 16.0 ppb (16) N/A N/A 24.0 ppb (23) 0.32 ppb (4) 29.0 μg/m3 (27) 13.7 μg/m3 (55) 55.0
 
Jan. 26, 2022, 2 a.m. 17.8 ppb (17) -0.7 ppb (0) N/A 19.0 ppb (18) N/A N/A 26.0 ppb (25) 0.33 ppb (4) 28.0 μg/m3 (26) 13.0 μg/m3 (53) 53.0
 
Jan. 26, 2022, 1 a.m. 23.3 ppb (22) -0.4 ppb (0) N/A 24.0 ppb (23) N/A N/A 30.0 ppb (28) 0.39 ppb (5) 31.0 μg/m3 (29) 11.3 μg/m3 (48) 48.0
 
Jan. 26, 2022, midnight 20.3 ppb (20) 0.2 ppb (1) N/A 20.0 ppb (19) N/A N/A 41.0 ppb (38) 0.34 ppb (4) 37.0 μg/m3 (35) 10.3 μg/m3 (43) 43.0
 
Jan. 25, 2022, 11 p.m. 19.8 ppb (19) 1.8 ppb (2) N/A 18.0 ppb (17) N/A N/A 41.0 ppb (38) 0.33 ppb (4) 36.0 μg/m3 (34) 9.7 μg/m3 (41) 41.0
 
Jan. 25, 2022, 10 p.m. 26.6 ppb (26) 4.9 ppb (5) N/A 22.0 ppb (21) N/A N/A 35.0 ppb (33) 0.36 ppb (5) 37.0 μg/m3 (35) 8.3 μg/m3 (35) 35.0
 
Jan. 25, 2022, 9 p.m. 29.0 ppb (28) 6.7 ppb (7) N/A 22.0 ppb (21) N/A N/A 32.0 ppb (30) 0.37 ppb (5) 39.0 μg/m3 (37) 10.1 μg/m3 (43) 43.0
 
Jan. 25, 2022, 8 p.m. 32.3 ppb (31) 9.0 ppb (9) N/A 23.0 ppb (22) N/A N/A 29.0 ppb (27) 0.41 ppb (5) 31.0 μg/m3 (29) 13.2 μg/m3 (54) 54.0
 
Jan. 25, 2022, 7 p.m. 37.8 ppb (36) 12.2 ppb (12) N/A 26.0 ppb (25) N/A N/A 24.0 ppb (23) 0.43 ppb (5) 48.0 μg/m3 (45) 12.5 μg/m3 (52) 52.0
 
Jan. 25, 2022, 6 p.m. 31.9 ppb (31) 10.3 ppb (10) N/A 22.0 ppb (21) N/A N/A 23.0 ppb (22) 0.41 ppb (5) 43.0 μg/m3 (40) 3.8 μg/m3 (16) 40.0
 
Jan. 25, 2022, 5 p.m. 10.9 ppb (11) 2.3 ppb (3) N/A 9.0 ppb (9) N/A N/A 30.0 ppb (28) 0.25 ppb (3) 17.0 μg/m3 (16) 1.0 μg/m3 (5) 28.0
 
Jan. 25, 2022, 4 p.m. 10.2 ppb (10) 1.4 ppb (2) N/A 9.0 ppb (9) N/A N/A 26.0 ppb (25) 0.26 ppb (4) 13.0 μg/m3 (13) 3.4 μg/m3 (15) 25.0
 
Jan. 25, 2022, 3 p.m. 11.0 ppb (11) 0.5 ppb (1) N/A 11.0 ppb (11) N/A N/A 18.0 ppb (17) 0.25 ppb (3) 14.0 μg/m3 (13) 4.4 μg/m3 (19) 19.0
 
Jan. 25, 2022, 2 p.m. 8.2 ppb (8) -0.4 ppb (0) N/A 9.0 ppb (9) N/A N/A 21.0 ppb (20) 0.21 ppb (3) 7.0 μg/m3 (7) 6.8 μg/m3 (29) 29.0
 
Jan. 25, 2022, 1 p.m. 4.4 ppb (5) -0.7 ppb (0) N/A 5.0 ppb (5) N/A N/A 28.0 ppb (26) 0.19 ppb (3) 8.0 μg/m3 (8) 6.8 μg/m3 (29) 29.0
 
Jan. 25, 2022, noon 1.0 ppb (1) -0.7 ppb (0) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) 0.16 ppb (3) 6.0 μg/m3 (6) 6.3 μg/m3 (27) 33.0
 
Jan. 25, 2022, 11 a.m. 1.4 ppb (2) -0.8 ppb (0) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (31) 0.16 ppb (3) 4.0 μg/m3 (4) 5.7 μg/m3 (24) 31.0
 
Jan. 25, 2022, 10 a.m. 1.8 ppb (2) -0.7 ppb (0) N/A 2.0 ppb (2) N/A N/A 31.0 ppb (29) 0.17 ppb (3) 5.0 μg/m3 (5) 3.2 μg/m3 (14) 29.0
 
Jan. 25, 2022, 9 a.m. 2.5 ppb (3) -0.7 ppb (0) N/A 3.0 ppb (3) N/A N/A 31.0 ppb (29) 0.18 ppb (3) 6.0 μg/m3 (6) 4.2 μg/m3 (18) 29.0
 
Jan. 25, 2022, 8 a.m. 3.0 ppb (3) -0.7 ppb (0) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (28) 0.2 ppb (3) 7.0 μg/m3 (7) 5.8 μg/m3 (25) 28.0
 
Jan. 25, 2022, 7 a.m. 4.1 ppb (4) -0.8 ppb (0) N/A 5.0 ppb (5) N/A N/A 30.0 ppb (28) 0.21 ppb (3) 10.0 μg/m3 (10) 1.2 μg/m3 (5) 28.0
 
Jan. 25, 2022, 6 a.m. 6.0 ppb (6) -0.7 ppb (0) N/A 7.0 ppb (7) N/A N/A 25.0 ppb (24) 0.25 ppb (3) 12.0 μg/m3 (12) 1.4 μg/m3 (6) 24.0
 
Jan. 25, 2022, 5 a.m. 7.7 ppb (8) -0.7 ppb (0) N/A 8.0 ppb (8) N/A N/A 26.0 ppb (25) 0.26 ppb (4) 12.0 μg/m3 (12) 3.8 μg/m3 (16) 25.0
 
Jan. 25, 2022, 4 a.m. 9.6 ppb (10) -0.6 ppb (0) N/A 10.0 ppb (10) N/A N/A 24.0 ppb (23) 0.28 ppb (4) 16.0 μg/m3 (15) 2.5 μg/m3 (11) 23.0
 
Jan. 25, 2022, 3 a.m. 10.0 ppb (10) -0.7 ppb (0) N/A 11.0 ppb (11) N/A N/A 25.0 ppb (24) 0.29 ppb (4) 16.0 μg/m3 (15) 3.4 μg/m3 (15) 24.0
 
Jan. 25, 2022, 2 a.m. 11.3 ppb (11) -0.7 ppb (0) N/A 12.0 ppb (12) N/A N/A 27.0 ppb (25) 0.28 ppb (4) 15.0 μg/m3 (14) 2.2 μg/m3 (10) 25.0
 
Jan. 25, 2022, 1 a.m. 12.5 ppb (12) -0.7 ppb (0) N/A 13.0 ppb (13) N/A N/A 32.0 ppb (30) 0.29 ppb (4) 25.0 μg/m3 (24) -0.6 μg/m3 (0) 30.0
 
Jan. 25, 2022, midnight 13.8 ppb (14) 0.1 ppb (1) N/A 14.0 ppb (14) N/A N/A 39.0 ppb (37) 0.28 ppb (4) 29.0 μg/m3 (27) -0.9 μg/m3 (0) 37.0
 
Jan. 24, 2022, 11 p.m. 15.4 ppb (15) 1.3 ppb (2) N/A 14.0 ppb (14) N/A N/A 41.0 ppb (38) 0.31 ppb (4) 29.0 μg/m3 (27) 2.4 μg/m3 (10) 38.0
 
Jan. 24, 2022, 10 p.m. 16.4 ppb (16) 2.6 ppb (3) N/A 14.0 ppb (14) N/A N/A 40.0 ppb (38) 0.29 ppb (4) 26.0 μg/m3 (25) 4.9 μg/m3 (21) 38.0
 
Jan. 24, 2022, 9 p.m. 19.0 ppb (18) 4.2 ppb (4) N/A 15.0 ppb (15) N/A N/A 35.0 ppb (33) 0.29 ppb (4) 22.0 μg/m3 (21) 3.6 μg/m3 (16) 33.0
 
Jan. 24, 2022, 8 p.m. 17.3 ppb (17) 4.3 ppb (5) N/A 13.0 ppb (13) N/A N/A 33.0 ppb (31) 0.29 ppb (4) 21.0 μg/m3 (20) 5.6 μg/m3 (24) 31.0
 
Jan. 24, 2022, 7 p.m. 18.6 ppb (18) 4.8 ppb (5) N/A 14.0 ppb (14) N/A N/A 32.0 ppb (30) 0.28 ppb (4) 19.0 μg/m3 (18) 7.1 μg/m3 (30) 30.0
 
Jan. 24, 2022, 6 p.m. 24.8 ppb (24) 7.4 ppb (7) N/A 17.0 ppb (17) N/A N/A 27.0 ppb (25) 0.35 ppb (4) N/A N/A 25.0
 
Jan. 24, 2022, 5 p.m. 21.1 ppb (20) 6.4 ppb (7) N/A 15.0 ppb (15) N/A N/A 23.0 ppb (22) 0.35 ppb (4) 23.0 μg/m3 (22) 2.4 μg/m3 (10) 22.0
 
Jan. 24, 2022, 4 p.m. 5.0 ppb (5) 0.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 30.0 ppb (28) 0.2 ppb (3) 6.0 μg/m3 (6) 3.4 μg/m3 (15) 28.0
 
Jan. 24, 2022, 3 p.m. 2.8 ppb (3) -0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (30) 0.17 ppb (3) 2.0 μg/m3 (2) 3.2 μg/m3 (14) 30.0
 
Jan. 24, 2022, 2 p.m. 4.0 ppb (4) -0.7 ppb (0) N/A 5.0 ppb (5) N/A N/A 27.0 ppb (25) 0.17 ppb (3) 1.0 μg/m3 (1) 2.0 μg/m3 (9) 25.0
 
Jan. 24, 2022, 1 p.m. 0.2 ppb (1) -0.7 ppb (0) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (33) 0.14 ppb (2) 2.0 μg/m3 (2) 1.3 μg/m3 (6) 33.0
 
Jan. 24, 2022, noon -0.3 ppb (0) -0.7 ppb (0) N/A 0.0 ppb (0) N/A N/A 36.0 ppb (34) 0.14 ppb (2) 3.0 μg/m3 (3) 1.5 μg/m3 (7) 34.0
 
Jan. 24, 2022, 11 a.m. -0.7 ppb (0) -0.8 ppb (0) N/A 0.0 ppb (0) N/A N/A 36.0 ppb (34) 0.13 ppb (2) 2.0 μg/m3 (2) 1.0 μg/m3 (5) 34.0
 
Jan. 24, 2022, 10 a.m. -0.7 ppb (0) -0.7 ppb (0) N/A 0.0 ppb (0) N/A N/A 37.0 ppb (35) 0.14 ppb (2) 2.0 μg/m3 (2) 0.3 μg/m3 (2) 35.0
 
Jan. 24, 2022, 9 a.m. -0.7 ppb (0) -0.8 ppb (0) N/A 0.0 ppb (0) N/A N/A 38.0 ppb (36) 0.13 ppb (2) 4.0 μg/m3 (4) -0.4 μg/m3 (0) 36.0
 
Jan. 24, 2022, 8 a.m. -0.6 ppb (0) -0.8 ppb (0) N/A 0.0 ppb (0) N/A N/A 38.0 ppb (36) 0.14 ppb (2) 4.0 μg/m3 (4) -0.4 μg/m3 (0) 36.0
 
Jan. 24, 2022, 7 a.m. 0.2 ppb (1) -0.8 ppb (0) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (35) 0.15 ppb (2) 3.0 μg/m3 (3) 0.7 μg/m3 (3) 35.0
 
Jan. 24, 2022, 6 a.m. 0.6 ppb (1) -0.8 ppb (0) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (35) 0.16 ppb (3) 3.0 μg/m3 (3) 3.6 μg/m3 (16) 35.0
 
Jan. 24, 2022, 5 a.m. 0.5 ppb (1) -0.8 ppb (0) N/A 1.0 ppb (1) N/A N/A 36.0 ppb (34) 0.15 ppb (2) 6.0 μg/m3 (6) 3.3 μg/m3 (14) 34.0
 
Jan. 24, 2022, 4 a.m. 1.5 ppb (2) -0.7 ppb (0) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (34) 0.17 ppb (3) 8.0 μg/m3 (8) 3.1 μg/m3 (13) 34.0
 
Jan. 24, 2022, 3 a.m. 3.8 ppb (4) -0.8 ppb (0) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (33) 0.2 ppb (3) 8.0 μg/m3 (8) 5.1 μg/m3 (22) 33.0
 
Jan. 24, 2022, 2 a.m. 4.2 ppb (4) -0.6 ppb (0) N/A 5.0 ppb (5) N/A N/A 34.0 ppb (32) 0.2 ppb (3) 8.0 μg/m3 (8) 2.4 μg/m3 (10) 32.0
 
Jan. 24, 2022, 1 a.m. 6.0 ppb (6) -0.7 ppb (0) N/A 7.0 ppb (7) N/A N/A 35.0 ppb (33) 0.24 ppb (3) 10.0 μg/m3 (10) 1.7 μg/m3 (8) 33.0
 
Jan. 24, 2022, midnight 6.5 ppb (7) -0.4 ppb (0) N/A 7.0 ppb (7) N/A N/A 41.0 ppb (38) 0.21 ppb (3) 11.0 μg/m3 (11) 3.9 μg/m3 (17) 38.0
 
Jan. 23, 2022, 11 p.m. 8.7 ppb (9) 0.5 ppb (1) N/A 8.0 ppb (8) N/A N/A 43.0 ppb (40) 0.24 ppb (3) 17.0 μg/m3 (16) 1.2 μg/m3 (5) 40.0
 
Jan. 23, 2022, 10 p.m. 8.7 ppb (9) 1.0 ppb (1) N/A 8.0 ppb (8) N/A N/A 42.0 ppb (39) 0.25 ppb (3) 7.0 μg/m3 (7) 0.3 μg/m3 (2) 39.0
 
Jan. 23, 2022, 9 p.m. 4.1 ppb (4) 0.3 ppb (1) N/A 4.0 ppb (4) N/A N/A 43.0 ppb (40) 0.2 ppb (3) 17.0 μg/m3 (16) 2.4 μg/m3 (10) 40.0
 
Jan. 23, 2022, 8 p.m. 2.2 ppb (3) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (39) 0.18 ppb (3) 5.0 μg/m3 (5) 2.0 μg/m3 (9) 39.0
 
Jan. 23, 2022, 7 p.m. 2.7 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (38) 0.18 ppb (3) 17.0 μg/m3 (16) -1.6 μg/m3 (0) 38.0
 
Jan. 23, 2022, 6 p.m. 2.4 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (36) 0.18 ppb (3) 19.0 μg/m3 (18) -1.4 μg/m3 (0) 36.0
 
Jan. 23, 2022, 5 p.m. 2.0 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) 0.17 ppb (3) 11.0 μg/m3 (11) 2.2 μg/m3 (10) 33.0
 
Jan. 23, 2022, 4 p.m. 4.2 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 27.0 ppb (25) 0.17 ppb (3) 6.0 μg/m3 (6) 1.4 μg/m3 (6) 25.0
 
Jan. 23, 2022, 3 p.m. 2.8 ppb (3) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (25) 0.15 ppb (2) 5.0 μg/m3 (5) 2.7 μg/m3 (12) 25.0
 
Jan. 23, 2022, 2 p.m. 2.0 ppb (2) -0.7 ppb (0) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (25) 0.14 ppb (2) 6.0 μg/m3 (6) 3.4 μg/m3 (15) 25.0
 
Jan. 23, 2022, 1 p.m. 1.4 ppb (2) -0.7 ppb (0) N/A 2.0 ppb (2) N/A N/A 27.0 ppb (25) 0.14 ppb (2) 4.0 μg/m3 (4) 3.3 μg/m3 (14) 25.0
 
Jan. 23, 2022, noon 2.2 ppb (3) -0.7 ppb (0) N/A 3.0 ppb (3) N/A N/A 27.0 ppb (25) 0.16 ppb (3) 3.0 μg/m3 (3) 4.1 μg/m3 (18) 25.0
 
Jan. 23, 2022, 11 a.m. 2.9 ppb (3) -0.7 ppb (0) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (28) 0.16 ppb (3) 5.0 μg/m3 (5) 3.3 μg/m3 (14) 28.0
 
Jan. 23, 2022, 10 a.m. -0.7 ppb (0) -0.7 ppb (0) N/A 0.0 ppb (0) N/A N/A 38.0 ppb (36) 0.13 ppb (2) 6.0 μg/m3 (6) -0.6 μg/m3 (0) 36.0
 
Jan. 23, 2022, 9 a.m. -1.4 ppb (0) -0.8 ppb (0) N/A -1.0 ppb (0) N/A N/A 39.0 ppb (37) 0.13 ppb (2) 4.0 μg/m3 (4) -0.9 μg/m3 (0) 37.0
 
Jan. 23, 2022, 8 a.m. -1.4 ppb (0) -0.8 ppb (0) N/A -1.0 ppb (0) N/A N/A 38.0 ppb (36) 0.12 ppb (2) 4.0 μg/m3 (4) 1.2 μg/m3 (5) 36.0
 
Jan. 23, 2022, 7 a.m. -0.7 ppb (0) -0.7 ppb (0) N/A 0.0 ppb (0) N/A N/A 35.0 ppb (33) 0.13 ppb (2) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 33.0
 
Jan. 23, 2022, 6 a.m. -0.6 ppb (0) -0.6 ppb (0) N/A 0.0 ppb (0) N/A N/A 34.0 ppb (32) 0.13 ppb (2) 0.0 μg/m3 (0) 1.2 μg/m3 (5) 32.0
 
Jan. 23, 2022, 5 a.m. -0.9 ppb (0) -0.8 ppb (0) N/A 0.0 ppb (0) N/A N/A 35.0 ppb (33) 0.13 ppb (2) 1.0 μg/m3 (1) 0.7 μg/m3 (3) 33.0
 
Jan. 23, 2022, 4 a.m. -0.8 ppb (0) -0.8 ppb (0) N/A 0.0 ppb (0) N/A N/A 35.0 ppb (33) 0.14 ppb (2) 2.0 μg/m3 (2) 0.5 μg/m3 (3) 33.0
 
Jan. 23, 2022, 3 a.m. -0.8 ppb (0) -0.8 ppb (0) N/A 0.0 ppb (0) N/A N/A 36.0 ppb (34) 0.13 ppb (2) 7.0 μg/m3 (7) 2.6 μg/m3 (11) 34.0
 
Jan. 23, 2022, 2 a.m. -1.0 ppb (0) -0.7 ppb (0) N/A 0.0 ppb (0) N/A N/A 40.0 ppb (38) 0.13 ppb (2) 10.0 μg/m3 (10) 3.6 μg/m3 (16) 38.0
 
Jan. 23, 2022, 1 a.m. -0.8 ppb (0) -0.7 ppb (0) N/A 0.0 ppb (0) N/A N/A 40.0 ppb (38) 0.13 ppb (2) 12.0 μg/m3 (12) 1.7 μg/m3 (8) 38.0
 
Jan. 23, 2022, midnight -1.1 ppb (0) -0.8 ppb (0) N/A 0.0 ppb (0) N/A N/A 42.0 ppb (39) 0.13 ppb (2) 14.0 μg/m3 (13) 0.0 μg/m3 (0) 39.0
 
Jan. 22, 2022, 11 p.m. -1.2 ppb (0) -0.7 ppb (0) N/A -1.0 ppb (0) N/A N/A 42.0 ppb (39) 0.13 ppb (2) 15.0 μg/m3 (14) 1.0 μg/m3 (5) 39.0
 
Jan. 22, 2022, 10 p.m. -1.4 ppb (0) -0.8 ppb (0) N/A -1.0 ppb (0) N/A N/A 42.0 ppb (39) 0.13 ppb (2) 15.0 μg/m3 (14) 3.1 μg/m3 (13) 39.0
 
Jan. 22, 2022, 9 p.m. -1.5 ppb (0) -0.8 ppb (0) N/A -1.0 ppb (0) N/A N/A 41.0 ppb (38) 0.13 ppb (2) 13.0 μg/m3 (13) 4.3 μg/m3 (18) 38.0
 
Jan. 22, 2022, 8 p.m. -1.4 ppb (0) -0.7 ppb (0) N/A -1.0 ppb (0) N/A N/A 41.0 ppb (38) 0.13 ppb (2) 13.0 μg/m3 (13) 2.6 μg/m3 (11) 38.0
 
Jan. 22, 2022, 7 p.m. -1.5 ppb (0) -0.7 ppb (0) N/A -1.0 ppb (0) N/A N/A 41.0 ppb (38) 0.12 ppb (2) 15.0 μg/m3 (14) 0.0 μg/m3 (0) 38.0
 
Jan. 22, 2022, 6 p.m. -1.4 ppb (0) -0.6 ppb (0) N/A -1.0 ppb (0) N/A N/A 41.0 ppb (38) 0.12 ppb (2) 19.0 μg/m3 (18) 2.2 μg/m3 (10) 38.0
 
Jan. 22, 2022, 5 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) 0.12 ppb (2) 20.0 μg/m3 (19) 3.0 μg/m3 (13) 38.0
 
Jan. 22, 2022, 4 p.m. -1.5 ppb (0) -0.7 ppb (0) N/A -1.0 ppb (0) N/A N/A 40.0 ppb (38) 0.12 ppb (2) 18.0 μg/m3 (17) 2.7 μg/m3 (12) 38.0
 
Jan. 22, 2022, 3 p.m. -1.6 ppb (0) -0.8 ppb (0) N/A -1.0 ppb (0) N/A N/A 40.0 ppb (38) 0.12 ppb (2) 26.0 μg/m3 (25) 2.6 μg/m3 (11) 38.0
 
Jan. 22, 2022, 2 p.m. -1.2 ppb (0) -0.6 ppb (0) N/A -1.0 ppb (0) N/A N/A 39.0 ppb (37) 0.13 ppb (2) 18.0 μg/m3 (17) -0.5 μg/m3 (0) 37.0
 
Jan. 22, 2022, 1 p.m. -1.5 ppb (0) -0.8 ppb (0) N/A -1.0 ppb (0) N/A N/A 39.0 ppb (37) 0.12 ppb (2) 13.0 μg/m3 (13) 3.5 μg/m3 (15) 37.0
 
Jan. 22, 2022, noon -1.6 ppb (0) -0.7 ppb (0) N/A -1.0 ppb (0) N/A N/A 39.0 ppb (37) 0.12 ppb (2) 20.0 μg/m3 (19) 4.1 μg/m3 (18) 37.0
 
Jan. 22, 2022, 11 a.m. -1.6 ppb (0) -0.8 ppb (0) N/A -1.0 ppb (0) N/A N/A 39.0 ppb (37) 0.12 ppb (2) 41.0 μg/m3 (38) -0.9 μg/m3 (0) 38.0
 
Jan. 22, 2022, 10 a.m. -1.5 ppb (0) -0.8 ppb (0) N/A -1.0 ppb (0) N/A N/A 39.0 ppb (37) 0.12 ppb (2) 37.0 μg/m3 (35) 3.6 μg/m3 (16) 37.0
 
Jan. 22, 2022, 9 a.m. -1.6 ppb (0) -0.7 ppb (0) N/A N/A N/A N/A 40.0 ppb (38) 0.12 ppb (2) 32.0 μg/m3 (30) 5.1 μg/m3 (22) 38.0
 
Jan. 22, 2022, 8 a.m. -1.7 ppb (0) -0.8 ppb (0) N/A N/A N/A N/A 40.0 ppb (38) 0.12 ppb (2) 50.0 μg/m3 (47) 4.6 μg/m3 (20) 47.0
 
Jan. 22, 2022, 7 a.m. -1.7 ppb (0) -0.8 ppb (0) N/A -1.0 ppb (0) N/A N/A 41.0 ppb (38) 0.12 ppb (2) 102.0 μg/m3 (75) 4.3 μg/m3 (18) 75.0
 
Jan. 22, 2022, 6 a.m. -1.6 ppb (0) -0.8 ppb (0) N/A -1.0 ppb (0) N/A N/A 41.0 ppb (38) 0.12 ppb (2) 108.0 μg/m3 (78) 2.8 μg/m3 (12) 78.0
 
Jan. 22, 2022, 5 a.m. -1.6 ppb (0) -0.8 ppb (0) N/A -1.0 ppb (0) N/A N/A 41.0 ppb (38) 0.12 ppb (2) 72.0 μg/m3 (60) 5.0 μg/m3 (21) 60.0
 
Jan. 22, 2022, 4 a.m. -1.5 ppb (0) -0.8 ppb (0) N/A -1.0 ppb (0) N/A N/A 41.0 ppb (38) 0.12 ppb (2) 54.0 μg/m3 (50) 7.5 μg/m3 (32) 50.0
 
Jan. 22, 2022, 3 a.m. -1.5 ppb (0) -0.8 ppb (0) N/A -1.0 ppb (0) N/A N/A 41.0 ppb (38) 0.12 ppb (2) 68.0 μg/m3 (58) 5.2 μg/m3 (22) 58.0
 
Jan. 22, 2022, 2 a.m. -1.4 ppb (0) -0.8 ppb (0) N/A -1.0 ppb (0) N/A N/A 41.0 ppb (38) 0.12 ppb (2) 41.0 μg/m3 (38) 0.0 μg/m3 (0) 38.0
 
Jan. 22, 2022, 1 a.m. -1.2 ppb (0) -0.8 ppb (0) N/A 0.0 ppb (0) N/A N/A 41.0 ppb (38) 0.12 ppb (2) 73.0 μg/m3 (60) 0.7 μg/m3 (3) 60.0
 
Jan. 22, 2022, midnight -1.1 ppb (0) -0.8 ppb (0) N/A 0.0 ppb (0) N/A N/A 42.0 ppb (39) 0.12 ppb (2) 57.0 μg/m3 (52) 1.2 μg/m3 (5) 52.0
 
Jan. 21, 2022, 11 p.m. -0.9 ppb (0) -0.7 ppb (0) N/A 0.0 ppb (0) N/A N/A 43.0 ppb (40) 0.12 ppb (2) N/A 0.0 μg/m3 (0) 40.0
 
Jan. 21, 2022, 10 p.m. 0.9 ppb (1) -0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) 0.13 ppb (2) 31.0 μg/m3 (29) 2.8 μg/m3 (12) 39.0
 
Jan. 21, 2022, 9 p.m. 17.1 ppb (17) 3.6 ppb (4) N/A 14.0 ppb (14) N/A N/A 35.0 ppb (33) 0.28 ppb (4) 14.0 μg/m3 (13) 5.0 μg/m3 (21) 33.0
 
Jan. 21, 2022, 8 p.m. 19.3 ppb (19) 5.0 ppb (5) N/A 14.0 ppb (14) N/A N/A 31.0 ppb (29) 0.29 ppb (4) 23.0 μg/m3 (22) 5.1 μg/m3 (22) 29.0
 
Jan. 21, 2022, 7 p.m. 21.5 ppb (21) 6.7 ppb (7) N/A 15.0 ppb (15) N/A N/A 26.0 ppb (25) 0.3 ppb (4) 22.0 μg/m3 (21) 4.0 μg/m3 (17) 25.0
 
Jan. 21, 2022, 6 p.m. 17.9 ppb (17) 5.4 ppb (6) N/A 12.0 ppb (12) N/A N/A 25.0 ppb (24) 0.27 ppb (4) 27.0 μg/m3 (25) 2.4 μg/m3 (10) 25.0
 
Jan. 21, 2022, 5 p.m. 17.1 ppb (17) 4.7 ppb (5) N/A 12.0 ppb (12) N/A N/A 24.0 ppb (23) 0.25 ppb (3) 16.0 μg/m3 (15) 6.9 μg/m3 (29) 29.0
 
Jan. 21, 2022, 4 p.m. 21.4 ppb (21) 5.7 ppb (6) N/A 16.0 ppb (16) N/A N/A 16.0 ppb (15) 0.28 ppb (4) 10.0 μg/m3 (10) 5.6 μg/m3 (24) 24.0
 
Jan. 21, 2022, 3 p.m. 9.8 ppb (10) 0.5 ppb (1) N/A 9.0 ppb (9) N/A N/A 19.0 ppb (18) 0.23 ppb (3) 5.0 μg/m3 (5) -0.1 μg/m3 (0) 18.0
 
Jan. 21, 2022, 2 p.m. 4.0 ppb (4) -0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 24.0 ppb (23) 0.17 ppb (3) 3.0 μg/m3 (3) 2.1 μg/m3 (9) 23.0
 
Jan. 21, 2022, 1 p.m. 0.6 ppb (1) -0.8 ppb (0) N/A 1.0 ppb (1) N/A N/A 31.0 ppb (29) 0.15 ppb (2) 5.0 μg/m3 (5) 4.0 μg/m3 (17) 29.0
 
Jan. 21, 2022, noon 0.6 ppb (1) -0.8 ppb (0) N/A 1.0 ppb (1) N/A N/A 31.0 ppb (29) 0.15 ppb (2) 4.0 μg/m3 (4) 0.6 μg/m3 (3) 29.0