ID: 2155

AQSQID: 060070008

Site Name: Chico - East

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

Updated: Jan. 28, 2022, 11:35 a.m.

Location: Chico (E Ave), CA

Reporting: True, Located: True

Current AQI: 68.0

Chico (E Ave) CA, US: 39.76168, -121.84047

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 28, 2022, 10 a.m. 20.4 ppb (20) 4.7 ppb (5) N/A 16.0 ppb (16) N/A N/A 2.0 ppb (2) 0.46 ppb (6) 17.0 μg/m3 (16) 20.0 μg/m3 (68) 68.0
 
Jan. 28, 2022, 9 a.m. 19.2 ppb (19) 3.5 ppb (4) N/A 16.0 ppb (16) N/A N/A 3.0 ppb (3) 0.53 ppb (6) 25.0 μg/m3 (24) 29.0 μg/m3 (87) 87.0
 
Jan. 28, 2022, 8 a.m. 26.3 ppb (25) 8.4 ppb (8) N/A 18.0 ppb (17) N/A N/A 3.0 ppb (3) 0.59 ppb (7) 21.0 μg/m3 (20) 19.0 μg/m3 (66) 66.0
 
Jan. 28, 2022, 7 a.m. 28.3 ppb (27) 9.4 ppb (9) N/A 19.0 ppb (18) N/A N/A 2.0 ppb (2) 0.68 ppb (8) 35.0 μg/m3 (33) 33.0 μg/m3 (95) 95.0
 
Jan. 28, 2022, 6 a.m. 30.5 ppb (29) 10.8 ppb (11) N/A 20.0 ppb (19) N/A N/A 2.0 ppb (2) 0.73 ppb (8) 38.0 μg/m3 (36) 30.0 μg/m3 (89) 89.0
 
Jan. 28, 2022, 5 a.m. 38.8 ppb (37) 18.6 ppb (18) N/A 20.0 ppb (19) N/A N/A 3.0 ppb (3) 0.82 ppb (10) 49.0 μg/m3 (46) 45.0 μg/m3 (125) 125.0
 
Jan. 28, 2022, 4 a.m. 23.8 ppb (23) 7.2 ppb (7) N/A 17.0 ppb (17) N/A N/A 6.0 ppb (6) 0.46 ppb (6) 26.0 μg/m3 (25) 14.0 μg/m3 (55) 55.0
 
Jan. 28, 2022, 3 a.m. 12.4 ppb (12) 1.2 ppb (2) N/A 11.0 ppb (11) N/A N/A 14.0 ppb (13) 0.35 ppb (4) 22.0 μg/m3 (21) 5.0 μg/m3 (21) 21.0
 
Jan. 28, 2022, 2 a.m. 23.1 ppb (22) 2.5 ppb (3) N/A 21.0 ppb (20) N/A N/A 12.0 ppb (12) 0.46 ppb (6) 36.0 μg/m3 (34) 16.0 μg/m3 (60) 60.0
 
Jan. 28, 2022, 1 a.m. 17.9 ppb (17) 1.7 ppb (2) N/A 16.0 ppb (16) N/A N/A 23.0 ppb (22) 0.38 ppb (5) 37.0 μg/m3 (35) 14.0 μg/m3 (55) 55.0
 
Jan. 28, 2022, midnight 9.0 ppb (9) 0.8 ppb (1) N/A 8.0 ppb (8) N/A N/A 38.0 ppb (36) 0.29 ppb (4) 30.0 μg/m3 (28) 14.0 μg/m3 (55) 55.0
 
Jan. 27, 2022, 11 p.m. 5.6 ppb (6) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 42.0 ppb (39) 0.25 ppb (3) 23.0 μg/m3 (22) 6.0 μg/m3 (25) 39.0
 
Jan. 27, 2022, 10 p.m. 3.3 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (36) 0.15 ppb (2) 19.0 μg/m3 (18) 0.0 μg/m3 (0) 36.0
 
Jan. 27, 2022, 9 p.m. 2.8 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) 0.14 ppb (2) 25.0 μg/m3 (24) 3.0 μg/m3 (13) 33.0
 
Jan. 27, 2022, 8 p.m. 5.6 ppb (6) 1.4 ppb (2) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (32) 0.22 ppb (3) 36.0 μg/m3 (34) 6.0 μg/m3 (25) 34.0
 
Jan. 27, 2022, 7 p.m. 8.2 ppb (8) 2.4 ppb (3) N/A 6.0 ppb (6) N/A N/A 28.0 ppb (26) 0.27 ppb (4) 18.0 μg/m3 (17) 6.0 μg/m3 (25) 26.0
 
Jan. 27, 2022, 6 p.m. 9.7 ppb (10) 3.3 ppb (4) N/A 7.0 ppb (7) N/A N/A 24.0 ppb (23) 0.26 ppb (4) 16.0 μg/m3 (15) 9.0 μg/m3 (38) 38.0
 
Jan. 27, 2022, 5 p.m. 13.5 ppb (13) 5.1 ppb (5) N/A 8.0 ppb (8) N/A N/A 18.0 ppb (17) 0.28 ppb (4) 20.0 μg/m3 (19) 11.0 μg/m3 (46) 46.0
 
Jan. 27, 2022, 4 p.m. 38.4 ppb (37) 21.2 ppb (20) N/A 17.0 ppb (17) N/A N/A 5.0 ppb (5) 0.47 ppb (6) 29.0 μg/m3 (27) 13.0 μg/m3 (53) 53.0
 
Jan. 27, 2022, 3 p.m. 46.1 ppb (44) 26.7 ppb (26) N/A 19.0 ppb (18) N/A N/A 1.0 ppb (1) 0.51 ppb (6) 20.0 μg/m3 (19) 17.0 μg/m3 (62) 62.0
 
Jan. 27, 2022, 2 p.m. 33.6 ppb (32) 15.7 ppb (15) N/A 18.0 ppb (17) N/A N/A 2.0 ppb (2) 0.37 ppb (5) 12.0 μg/m3 (12) 11.0 μg/m3 (46) 46.0
 
Jan. 27, 2022, 1 p.m. 24.2 ppb (23) 9.9 ppb (10) N/A 14.0 ppb (14) N/A N/A 1.0 ppb (1) 0.37 ppb (5) 20.0 μg/m3 (19) 14.0 μg/m3 (55) 55.0
 
Jan. 27, 2022, noon N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (20) 22.0 μg/m3 (72) 72.0
 
Jan. 27, 2022, 11 a.m. 19.7 ppb (19) 7.0 ppb (7) N/A 13.0 ppb (13) N/A N/A 1.0 ppb (1) 0.42 ppb (5) 18.0 μg/m3 (17) 19.0 μg/m3 (66) 66.0
 
Jan. 27, 2022, 10 a.m. 19.7 ppb (19) 6.6 ppb (7) N/A 13.0 ppb (13) N/A N/A 1.0 ppb (1) 0.45 ppb (6) 20.0 μg/m3 (19) 18.0 μg/m3 (64) 64.0
 
Jan. 27, 2022, 9 a.m. 21.1 ppb (20) 6.5 ppb (7) N/A 15.0 ppb (15) N/A N/A 1.0 ppb (1) 0.52 ppb (6) 28.0 μg/m3 (26) 17.0 μg/m3 (62) 62.0
 
Jan. 27, 2022, 8 a.m. 27.6 ppb (27) 11.3 ppb (11) N/A 16.0 ppb (16) N/A N/A 2.0 ppb (2) 0.73 ppb (8) 36.0 μg/m3 (34) 30.0 μg/m3 (89) 89.0
 
Jan. 27, 2022, 7 a.m. 22.8 ppb (22) 6.4 ppb (7) N/A 16.0 ppb (16) N/A N/A 3.0 ppb (3) 0.61 ppb (7) 29.0 μg/m3 (27) 25.0 μg/m3 (79) 79.0
 
Jan. 27, 2022, 6 a.m. 22.0 ppb (21) 6.9 ppb (7) N/A 15.0 ppb (15) N/A N/A 6.0 ppb (6) 0.49 ppb (6) 34.0 μg/m3 (32) 28.0 μg/m3 (85) 85.0
 
Jan. 27, 2022, 5 a.m. 25.4 ppb (24) 7.8 ppb (8) N/A 18.0 ppb (17) N/A N/A 4.0 ppb (4) 0.49 ppb (6) 22.0 μg/m3 (21) 14.0 μg/m3 (55) 55.0
 
Jan. 27, 2022, 4 a.m. 43.7 ppb (42) 18.4 ppb (18) N/A 25.0 ppb (24) N/A N/A 1.0 ppb (1) 0.9 ppb (11) 45.0 μg/m3 (42) 32.0 μg/m3 (93) 93.0
 
Jan. 27, 2022, 3 a.m. 38.0 ppb (36) 11.0 ppb (11) N/A 27.0 ppb (26) N/A N/A 2.0 ppb (2) 0.68 ppb (8) 44.0 μg/m3 (41) 27.0 μg/m3 (83) 83.0
 
Jan. 27, 2022, 2 a.m. 31.7 ppb (30) 8.4 ppb (8) N/A 23.0 ppb (22) N/A N/A 6.0 ppb (6) 0.64 ppb (7) 28.0 μg/m3 (26) 9.0 μg/m3 (38) 38.0
 
Jan. 27, 2022, 1 a.m. 7.7 ppb (8) 0.3 ppb (1) N/A 7.0 ppb (7) N/A N/A 30.0 ppb (28) 0.28 ppb (4) 19.0 μg/m3 (18) 1.0 μg/m3 (5) 28.0
 
Jan. 27, 2022, midnight 2.5 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) 0.17 ppb (3) 22.0 μg/m3 (21) 1.0 μg/m3 (5) 38.0
 
Jan. 26, 2022, 11 p.m. 1.7 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) 0.15 ppb (2) 11.0 μg/m3 (11) 2.0 μg/m3 (9) 38.0
 
Jan. 26, 2022, 10 p.m. 1.5 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 39.0 ppb (37) 0.14 ppb (2) 28.0 μg/m3 (26) 0.0 μg/m3 (0) 37.0
 
Jan. 26, 2022, 9 p.m. 2.3 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) 0.16 ppb (3) 25.0 μg/m3 (24) -1.0 μg/m3 (0) 33.0
 
Jan. 26, 2022, 8 p.m. 4.4 ppb (5) 1.4 ppb (2) N/A 3.0 ppb (3) N/A N/A 29.0 ppb (27) 0.17 ppb (3) 26.0 μg/m3 (25) 1.0 μg/m3 (5) 27.0
 
Jan. 26, 2022, 7 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (25) 0.18 ppb (3) 28.0 μg/m3 (26) 5.0 μg/m3 (21) 26.0
 
Jan. 26, 2022, 6 p.m. 17.3 ppb (17) 6.4 ppb (7) N/A 11.0 ppb (11) N/A N/A 21.0 ppb (20) 0.29 ppb (4) 21.0 μg/m3 (20) 10.0 μg/m3 (42) 42.0
 
Jan. 26, 2022, 5 p.m. 13.0 ppb (13) 4.6 ppb (5) N/A 9.0 ppb (9) N/A N/A 19.0 ppb (18) 0.23 ppb (3) 16.0 μg/m3 (15) 9.0 μg/m3 (38) 38.0
 
Jan. 26, 2022, 4 p.m. 49.6 ppb (47) 31.1 ppb (30) N/A 19.0 ppb (18) N/A N/A 6.0 ppb (6) 0.59 ppb (7) 48.0 μg/m3 (45) 16.0 μg/m3 (60) 60.0
 
Jan. 26, 2022, 3 p.m. 57.2 ppb (55) 34.9 ppb (33) N/A 22.0 ppb (21) N/A N/A 1.0 ppb (1) 0.79 ppb (10) 21.0 μg/m3 (20) 9.0 μg/m3 (38) 55.0
 
Jan. 26, 2022, 2 p.m. 29.2 ppb (28) 10.4 ppb (10) N/A 19.0 ppb (18) N/A N/A 3.0 ppb (3) 0.37 ppb (5) 13.0 μg/m3 (13) 7.0 μg/m3 (30) 30.0
 
Jan. 26, 2022, 1 p.m. 17.8 ppb (17) 3.1 ppb (3) N/A 15.0 ppb (15) N/A N/A 6.0 ppb (6) 0.28 ppb (4) 12.0 μg/m3 (12) 10.0 μg/m3 (42) 42.0
 
Jan. 26, 2022, noon N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 4.0 μg/m3 (17) 17.0
 
Jan. 26, 2022, 11 a.m. 9.9 ppb (10) 1.4 ppb (2) N/A 9.0 ppb (9) N/A N/A 18.0 ppb (17) 0.19 ppb (3) 4.0 μg/m3 (4) 2.0 μg/m3 (9) 17.0
 
Jan. 26, 2022, 10 a.m. 5.0 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 27.0 ppb (25) 0.21 ppb (3) 5.0 μg/m3 (5) 4.0 μg/m3 (17) 25.0
 
Jan. 26, 2022, 9 a.m. 7.1 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 24.0 ppb (23) 0.25 ppb (3) 11.0 μg/m3 (11) 7.0 μg/m3 (30) 30.0
 
Jan. 26, 2022, 8 a.m. 12.6 ppb (12) 1.5 ppb (2) N/A 11.0 ppb (11) N/A N/A 13.0 ppb (13) 0.47 ppb (6) 30.0 μg/m3 (28) 26.0 μg/m3 (81) 81.0
 
Jan. 26, 2022, 7 a.m. 11.0 ppb (11) 1.5 ppb (2) N/A 10.0 ppb (10) N/A N/A 20.0 ppb (19) 0.41 ppb (5) 34.0 μg/m3 (32) 22.0 μg/m3 (72) 72.0
 
Jan. 26, 2022, 6 a.m. 13.1 ppb (13) 1.7 ppb (2) N/A 11.0 ppb (11) N/A N/A 18.0 ppb (17) 0.4 ppb (5) 35.0 μg/m3 (33) 16.0 μg/m3 (60) 60.0
 
Jan. 26, 2022, 5 a.m. 10.9 ppb (11) 1.0 ppb (1) N/A 10.0 ppb (10) N/A N/A 25.0 ppb (24) 0.28 ppb (4) 8.0 μg/m3 (8) 6.0 μg/m3 (25) 25.0
 
Jan. 26, 2022, 4 a.m. 7.3 ppb (7) 0.6 ppb (1) N/A 7.0 ppb (7) N/A N/A 29.0 ppb (27) 0.23 ppb (3) 10.0 μg/m3 (10) 6.0 μg/m3 (25) 27.0
 
Jan. 26, 2022, 3 a.m. 11.7 ppb (12) 1.2 ppb (2) N/A 11.0 ppb (11) N/A N/A 30.0 ppb (28) 0.27 ppb (4) 12.0 μg/m3 (12) 6.0 μg/m3 (25) 28.0
 
Jan. 26, 2022, 2 a.m. 4.9 ppb (5) 0.5 ppb (1) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (33) 0.19 ppb (3) 9.0 μg/m3 (9) 3.0 μg/m3 (13) 33.0
 
Jan. 26, 2022, 1 a.m. 3.4 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (35) 0.15 ppb (2) 13.0 μg/m3 (13) N/A 35.0
 
Jan. 26, 2022, midnight 1.9 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (37) 0.13 ppb (2) 10.0 μg/m3 (10) -1.0 μg/m3 (0) 37.0
 
Jan. 25, 2022, 11 p.m. 2.2 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) 0.13 ppb (2) 16.0 μg/m3 (15) 1.0 μg/m3 (5) 38.0
 
Jan. 25, 2022, 10 p.m. 1.8 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (38) 0.12 ppb (2) 13.0 μg/m3 (13) 1.0 μg/m3 (5) 38.0
 
Jan. 25, 2022, 9 p.m. 1.7 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A N/A 39.0 ppb (37) 0.11 ppb (2) 24.0 μg/m3 (23) 0.0 μg/m3 (0) 37.0
 
Jan. 25, 2022, 8 p.m. 2.3 ppb (3) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 36.0 ppb (34) 0.11 ppb (2) 23.0 μg/m3 (22) 1.0 μg/m3 (5) 34.0
 
Jan. 25, 2022, 7 p.m. 2.9 ppb (3) 1.4 ppb (2) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (28) 0.12 ppb (2) 11.0 μg/m3 (11) 4.0 μg/m3 (17) 28.0
 
Jan. 25, 2022, 6 p.m. 6.6 ppb (7) 2.9 ppb (3) N/A 4.0 ppb (4) N/A N/A 23.0 ppb (22) 0.17 ppb (3) 27.0 μg/m3 (25) 7.0 μg/m3 (30) 30.0
 
Jan. 25, 2022, 5 p.m. 23.4 ppb (23) 13.2 ppb (13) N/A 10.0 ppb (10) N/A N/A 12.0 ppb (12) 0.3 ppb (4) 28.0 μg/m3 (26) 10.0 μg/m3 (42) 42.0
 
Jan. 25, 2022, 4 p.m. 48.8 ppb (47) 33.4 ppb (32) N/A 15.0 ppb (15) N/A N/A 3.0 ppb (3) 0.59 ppb (7) 41.0 μg/m3 (38) 19.0 μg/m3 (66) 66.0
 
Jan. 25, 2022, 3 p.m. 20.0 ppb (19) 10.1 ppb (10) N/A 10.0 ppb (10) N/A N/A 2.0 ppb (2) 0.29 ppb (4) 20.0 μg/m3 (19) 11.0 μg/m3 (46) 46.0
 
Jan. 25, 2022, 2 p.m. 28.1 ppb (27) 17.4 ppb (17) N/A 11.0 ppb (11) N/A N/A 0.0 ppb (0) 0.36 ppb (5) 18.0 μg/m3 (17) 14.0 μg/m3 (55) 55.0
 
Jan. 25, 2022, 1 p.m. 19.1 ppb (19) 9.1 ppb (9) N/A 10.0 ppb (10) N/A N/A 1.0 ppb (1) 0.3 ppb (4) 11.0 μg/m3 (11) 11.0 μg/m3 (46) 46.0
 
Jan. 25, 2022, noon N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (11) 15.0 μg/m3 (58) 58.0
 
Jan. 25, 2022, 11 a.m. 19.8 ppb (19) 9.5 ppb (9) N/A 10.0 ppb (10) N/A N/A 1.0 ppb (1) 0.39 ppb (5) 20.0 μg/m3 (19) 15.0 μg/m3 (58) 58.0
 
Jan. 25, 2022, 10 a.m. 20.1 ppb (19) 9.1 ppb (9) N/A 11.0 ppb (11) N/A N/A 1.0 ppb (1) 0.45 ppb (6) 21.0 μg/m3 (20) 20.0 μg/m3 (68) 68.0
 
Jan. 25, 2022, 9 a.m. 15.3 ppb (15) 4.0 ppb (4) N/A 11.0 ppb (11) N/A N/A 2.0 ppb (2) 0.41 ppb (5) 19.0 μg/m3 (18) 16.0 μg/m3 (60) 60.0
 
Jan. 25, 2022, 8 a.m. 20.3 ppb (20) 8.6 ppb (9) N/A 12.0 ppb (12) N/A N/A 1.0 ppb (1) 0.49 ppb (6) 33.0 μg/m3 (31) 25.0 μg/m3 (79) 79.0
 
Jan. 25, 2022, 7 a.m. 28.5 ppb (27) 14.0 ppb (14) N/A 15.0 ppb (15) N/A N/A 1.0 ppb (1) 0.62 ppb (7) 42.0 μg/m3 (39) 31.0 μg/m3 (91) 91.0
 
Jan. 25, 2022, 6 a.m. 19.6 ppb (19) 5.4 ppb (6) N/A 14.0 ppb (14) N/A N/A 2.0 ppb (2) 0.45 ppb (6) 34.0 μg/m3 (32) 21.0 μg/m3 (70) 70.0
 
Jan. 25, 2022, 5 a.m. 19.0 ppb (18) 4.8 ppb (5) N/A 14.0 ppb (14) N/A N/A 6.0 ppb (6) 0.46 ppb (6) 26.0 μg/m3 (25) 18.0 μg/m3 (64) 64.0
 
Jan. 25, 2022, 4 a.m. 18.5 ppb (18) 2.9 ppb (3) N/A 16.0 ppb (16) N/A N/A 7.0 ppb (7) 0.44 ppb (5) 35.0 μg/m3 (33) 28.0 μg/m3 (85) 85.0
 
Jan. 25, 2022, 3 a.m. 35.1 ppb (34) 8.9 ppb (9) N/A 26.0 ppb (25) N/A N/A 3.0 ppb (3) 0.72 ppb (8) 57.0 μg/m3 (52) 38.0 μg/m3 (108) 108.0
 
Jan. 25, 2022, 2 a.m. 30.2 ppb (29) 4.2 ppb (4) N/A 26.0 ppb (25) N/A N/A 7.0 ppb (7) 0.63 ppb (7) 56.0 μg/m3 (52) 25.0 μg/m3 (79) 79.0
 
Jan. 25, 2022, 1 a.m. 13.5 ppb (13) 1.6 ppb (2) N/A 12.0 ppb (12) N/A N/A 27.0 ppb (25) 0.39 ppb (5) 36.0 μg/m3 (34) 21.0 μg/m3 (70) 70.0
 
Jan. 25, 2022, midnight 4.7 ppb (5) 1.2 ppb (2) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (38) 0.22 ppb (3) 31.0 μg/m3 (29) 16.0 μg/m3 (60) 60.0
 
Jan. 24, 2022, 11 p.m. 4.9 ppb (5) 1.4 ppb (2) N/A 4.0 ppb (4) N/A N/A 40.0 ppb (38) 0.22 ppb (3) 26.0 μg/m3 (25) 11.0 μg/m3 (46) 46.0
 
Jan. 24, 2022, 10 p.m. 4.8 ppb (5) 1.5 ppb (2) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (37) 0.21 ppb (3) 30.0 μg/m3 (28) 15.0 μg/m3 (58) 58.0
 
Jan. 24, 2022, 9 p.m. 4.9 ppb (5) 1.7 ppb (2) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (35) 0.2 ppb (3) 28.0 μg/m3 (26) 12.0 μg/m3 (50) 50.0
 
Jan. 24, 2022, 8 p.m. 6.2 ppb (6) 2.1 ppb (2) N/A 4.0 ppb (4) N/A N/A 32.0 ppb (30) 0.22 ppb (3) 31.0 μg/m3 (29) 12.0 μg/m3 (50) 50.0
 
Jan. 24, 2022, 7 p.m. 11.7 ppb (12) 3.9 ppb (4) N/A 8.0 ppb (8) N/A N/A 24.0 ppb (23) 0.26 ppb (4) 27.0 μg/m3 (25) 16.0 μg/m3 (60) 60.0
 
Jan. 24, 2022, 6 p.m. 24.5 ppb (24) 9.2 ppb (9) N/A 15.0 ppb (15) N/A N/A 17.0 ppb (16) 0.36 ppb (5) 29.0 μg/m3 (27) 13.0 μg/m3 (53) 53.0
 
Jan. 24, 2022, 5 p.m. 39.7 ppb (38) 28.1 ppb (27) N/A 12.0 ppb (12) N/A N/A N/A 0.53 ppb (6) 32.0 μg/m3 (30) 13.0 μg/m3 (53) 53.0
 
Jan. 24, 2022, 4 p.m. 40.2 ppb (38) 29.2 ppb (28) N/A 11.0 ppb (11) N/A N/A N/A 0.72 ppb (8) 35.0 μg/m3 (33) 10.0 μg/m3 (42) 42.0
 
Jan. 24, 2022, 3 p.m. 33.2 ppb (32) 22.7 ppb (22) N/A 11.0 ppb (11) N/A N/A N/A 0.52 ppb (6) 23.0 μg/m3 (22) 9.0 μg/m3 (38) 38.0
 
Jan. 24, 2022, 2 p.m. 26.0 ppb (25) 15.9 ppb (15) N/A 10.0 ppb (10) N/A N/A N/A 0.42 ppb (5) 18.0 μg/m3 (17) 11.0 μg/m3 (46) 46.0
 
Jan. 24, 2022, 1 p.m. 21.9 ppb (21) 12.8 ppb (13) N/A 9.0 ppb (9) N/A N/A N/A 0.4 ppb (5) 7.0 μg/m3 (7) 6.0 μg/m3 (25) 25.0
 
Jan. 24, 2022, noon N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (6) 4.0 μg/m3 (17) 17.0
 
Jan. 24, 2022, 11 a.m. 17.3 ppb (17) 8.9 ppb (9) N/A 8.0 ppb (8) N/A N/A N/A 0.36 ppb (5) 7.0 μg/m3 (7) 7.0 μg/m3 (30) 30.0
 
Jan. 24, 2022, 10 a.m. 16.9 ppb (16) 8.7 ppb (9) N/A 8.0 ppb (8) N/A N/A N/A 0.34 ppb (4) 8.0 μg/m3 (8) 5.0 μg/m3 (21) 21.0
 
Jan. 24, 2022, 9 a.m. 18.0 ppb (17) 9.4 ppb (9) N/A 9.0 ppb (9) N/A N/A N/A 0.51 ppb (6) 13.0 μg/m3 (13) 19.0 μg/m3 (66) 66.0
 
Jan. 24, 2022, 8 a.m. 17.7 ppb (17) 8.9 ppb (9) N/A 9.0 ppb (9) N/A N/A N/A 0.59 ppb (7) 32.0 μg/m3 (30) 24.0 μg/m3 (77) 77.0
 
Jan. 24, 2022, 7 a.m. 17.0 ppb (17) 7.7 ppb (8) N/A 9.0 ppb (9) N/A N/A N/A 0.6 ppb (7) 28.0 μg/m3 (26) 30.0 μg/m3 (89) 89.0
 
Jan. 24, 2022, 6 a.m. 17.5 ppb (17) 7.9 ppb (8) N/A 10.0 ppb (10) N/A N/A N/A 0.68 ppb (8) 44.0 μg/m3 (41) 37.0 μg/m3 (105) 105.0
 
Jan. 24, 2022, 5 a.m. 16.5 ppb (16) 6.4 ppb (7) N/A 10.0 ppb (10) N/A N/A N/A 0.59 ppb (7) 38.0 μg/m3 (36) 29.0 μg/m3 (87) 87.0
 
Jan. 24, 2022, 4 a.m. 14.8 ppb (14) 5.1 ppb (5) N/A 10.0 ppb (10) N/A N/A N/A 0.49 ppb (6) 34.0 μg/m3 (32) 17.0 μg/m3 (62) 62.0
 
Jan. 24, 2022, 3 a.m. 13.8 ppb (14) 4.8 ppb (5) N/A 9.0 ppb (9) N/A N/A N/A 0.37 ppb (5) 26.0 μg/m3 (25) 17.0 μg/m3 (62) 62.0
 
Jan. 24, 2022, 2 a.m. 14.2 ppb (14) 4.8 ppb (5) N/A 9.0 ppb (9) N/A N/A N/A 0.36 ppb (5) 22.0 μg/m3 (21) 14.0 μg/m3 (55) 55.0
 
Jan. 24, 2022, 1 a.m. 14.3 ppb (14) 4.7 ppb (5) N/A 10.0 ppb (10) N/A N/A N/A 0.31 ppb (4) 19.0 μg/m3 (18) 5.0 μg/m3 (21) 21.0
 
Jan. 24, 2022, midnight 14.3 ppb (14) 4.6 ppb (5) N/A 10.0 ppb (10) N/A N/A N/A 0.19 ppb (3) 3.0 μg/m3 (3) -1.0 μg/m3 (0) 14.0
 
Jan. 23, 2022, 11 p.m. 15.0 ppb (15) 4.6 ppb (5) N/A 10.0 ppb (10) N/A N/A N/A 0.17 ppb (3) 1.0 μg/m3 (1) 0.0 μg/m3 (0) 15.0
 
Jan. 23, 2022, 10 p.m. 15.3 ppb (15) 4.9 ppb (5) N/A 11.0 ppb (11) N/A N/A N/A 0.17 ppb (3) 3.0 μg/m3 (3) -1.0 μg/m3 (0) 15.0
 
Jan. 23, 2022, 9 p.m. 16.2 ppb (16) 6.2 ppb (6) N/A 10.0 ppb (10) N/A N/A N/A 0.17 ppb (3) 6.0 μg/m3 (6) N/A 16.0
 
Jan. 23, 2022, 8 p.m. 17.0 ppb (17) 7.5 ppb (8) N/A 10.0 ppb (10) N/A N/A N/A 0.18 ppb (3) 7.0 μg/m3 (7) 0.0 μg/m3 (0) 17.0
 
Jan. 23, 2022, 7 p.m. 17.2 ppb (17) 8.3 ppb (8) N/A 9.0 ppb (9) N/A N/A N/A 0.2 ppb (3) 6.0 μg/m3 (6) 4.0 μg/m3 (17) 17.0
 
Jan. 23, 2022, 6 p.m. 18.2 ppb (18) 9.5 ppb (9) N/A 9.0 ppb (9) N/A N/A N/A 0.22 ppb (3) 8.0 μg/m3 (8) 5.0 μg/m3 (21) 21.0
 
Jan. 23, 2022, 5 p.m. 19.9 ppb (19) 10.4 ppb (10) N/A 10.0 ppb (10) N/A N/A N/A 0.26 ppb (4) 6.0 μg/m3 (6) 7.0 μg/m3 (30) 30.0
 
Jan. 23, 2022, 4 p.m. 22.6 ppb (22) 11.6 ppb (11) N/A 11.0 ppb (11) N/A N/A N/A 0.38 ppb (5) 21.0 μg/m3 (20) 11.0 μg/m3 (46) 46.0
 
Jan. 23, 2022, 3 p.m. 18.7 ppb (18) 7.8 ppb (8) N/A 11.0 ppb (11) N/A N/A N/A 0.29 ppb (4) 17.0 μg/m3 (16) 9.0 μg/m3 (38) 38.0
 
Jan. 23, 2022, 2 p.m. 17.4 ppb (17) 6.8 ppb (7) N/A 11.0 ppb (11) N/A N/A N/A 0.26 ppb (4) 10.0 μg/m3 (10) 6.0 μg/m3 (25) 25.0
 
Jan. 23, 2022, 1 p.m. 16.7 ppb (16) 6.4 ppb (7) N/A 10.0 ppb (10) N/A N/A N/A 0.3 ppb (4) 8.0 μg/m3 (8) 9.0 μg/m3 (38) 38.0
 
Jan. 23, 2022, noon N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 13.0 μg/m3 (53) 53.0
 
Jan. 23, 2022, 11 a.m. 15.2 ppb (15) 5.2 ppb (5) N/A 10.0 ppb (10) N/A N/A N/A 0.44 ppb (5) 22.0 μg/m3 (21) 13.0 μg/m3 (53) 53.0
 
Jan. 23, 2022, 10 a.m. 14.6 ppb (14) 4.8 ppb (5) N/A 10.0 ppb (10) N/A N/A N/A 0.46 ppb (6) 25.0 μg/m3 (24) 20.0 μg/m3 (68) 68.0
 
Jan. 23, 2022, 9 a.m. 13.5 ppb (13) 4.1 ppb (4) N/A 10.0 ppb (10) N/A N/A N/A 0.44 ppb (5) 24.0 μg/m3 (23) 17.0 μg/m3 (62) 62.0
 
Jan. 23, 2022, 8 a.m. 13.4 ppb (13) 3.8 ppb (4) N/A 10.0 ppb (10) N/A N/A N/A 0.44 ppb (5) 25.0 μg/m3 (24) 17.0 μg/m3 (62) 62.0
 
Jan. 23, 2022, 7 a.m. 12.0 ppb (12) 3.3 ppb (4) N/A 9.0 ppb (9) N/A N/A N/A 0.3 ppb (4) 17.0 μg/m3 (16) 12.0 μg/m3 (50) 50.0
 
Jan. 23, 2022, 6 a.m. 12.7 ppb (12) 3.4 ppb (4) N/A 9.0 ppb (9) N/A N/A N/A 0.41 ppb (5) 24.0 μg/m3 (23) 11.0 μg/m3 (46) 46.0
 
Jan. 23, 2022, 5 a.m. 11.0 ppb (11) 2.8 ppb (3) N/A 8.0 ppb (8) N/A N/A N/A 0.3 ppb (4) 16.0 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
Jan. 23, 2022, 4 a.m. 9.7 ppb (10) 2.8 ppb (3) N/A 7.0 ppb (7) N/A N/A N/A 0.18 ppb (3) 4.0 μg/m3 (4) 1.0 μg/m3 (5) 10.0
 
Jan. 23, 2022, 3 a.m. 10.2 ppb (10) 3.0 ppb (3) N/A 7.0 ppb (7) N/A N/A N/A 0.16 ppb (3) 3.0 μg/m3 (3) 0.0 μg/m3 (0) 10.0
 
Jan. 23, 2022, 2 a.m. 10.8 ppb (11) 3.2 ppb (4) N/A 8.0 ppb (8) N/A N/A N/A 0.16 ppb (3) 4.0 μg/m3 (4) 1.0 μg/m3 (5) 11.0
 
Jan. 23, 2022, 1 a.m. 11.6 ppb (11) 3.8 ppb (4) N/A 8.0 ppb (8) N/A N/A N/A 0.16 ppb (3) 5.0 μg/m3 (5) 1.0 μg/m3 (5) 11.0
 
Jan. 23, 2022, midnight 13.5 ppb (13) 3.8 ppb (4) N/A 10.0 ppb (10) N/A N/A N/A 0.21 ppb (3) 4.0 μg/m3 (4) -1.0 μg/m3 (0) 13.0
 
Jan. 22, 2022, 11 p.m. 13.2 ppb (13) 3.1 ppb (3) N/A 10.0 ppb (10) N/A N/A N/A 0.17 ppb (3) 5.0 μg/m3 (5) -2.0 μg/m3 (0) 13.0
 
Jan. 22, 2022, 10 p.m. 13.6 ppb (13) 3.3 ppb (4) N/A 10.0 ppb (10) N/A N/A N/A 0.16 ppb (3) 7.0 μg/m3 (7) -2.0 μg/m3 (0) 13.0
 
Jan. 22, 2022, 9 p.m. 14.8 ppb (14) 4.4 ppb (5) N/A 10.0 ppb (10) N/A N/A N/A 0.17 ppb (3) 8.0 μg/m3 (8) -2.0 μg/m3 (0) 14.0
 
Jan. 22, 2022, 8 p.m. 16.1 ppb (16) 6.3 ppb (6) N/A 10.0 ppb (10) N/A N/A N/A 0.17 ppb (3) 6.0 μg/m3 (6) -1.0 μg/m3 (0) 16.0
 
Jan. 22, 2022, 7 p.m. 16.7 ppb (16) 7.4 ppb (7) N/A 9.0 ppb (9) N/A N/A N/A 0.17 ppb (3) 9.0 μg/m3 (9) 0.0 μg/m3 (0) 16.0
 
Jan. 22, 2022, 6 p.m. 17.4 ppb (17) 7.9 ppb (8) N/A 9.0 ppb (9) N/A N/A N/A 0.18 ppb (3) 6.0 μg/m3 (6) 0.0 μg/m3 (0) 17.0
 
Jan. 22, 2022, 5 p.m. 19.1 ppb (19) 8.6 ppb (9) N/A 11.0 ppb (11) N/A N/A N/A 0.21 ppb (3) 12.0 μg/m3 (12) 4.0 μg/m3 (17) 19.0
 
Jan. 22, 2022, 4 p.m. 21.5 ppb (21) 9.7 ppb (10) N/A 12.0 ppb (12) N/A N/A N/A 0.26 ppb (4) 9.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
Jan. 22, 2022, 3 p.m. 21.8 ppb (21) 9.6 ppb (10) N/A 12.0 ppb (12) N/A N/A N/A 0.26 ppb (4) 9.0 μg/m3 (9) 5.0 μg/m3 (21) 21.0
 
Jan. 22, 2022, 2 p.m. 18.9 ppb (18) 7.4 ppb (7) N/A 11.0 ppb (11) N/A N/A N/A 0.25 ppb (3) 8.0 μg/m3 (8) 6.0 μg/m3 (25) 25.0
 
Jan. 22, 2022, 1 p.m. 18.1 ppb (18) 6.9 ppb (7) N/A 11.0 ppb (11) N/A N/A N/A 0.29 ppb (4) 9.0 μg/m3 (9) 7.0 μg/m3 (30) 30.0
 
Jan. 22, 2022, noon N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 6.0 μg/m3 (25) 25.0
 
Jan. 22, 2022, 11 a.m. 15.9 ppb (15) 5.4 ppb (6) N/A 11.0 ppb (11) N/A N/A N/A 0.32 ppb (4) 11.0 μg/m3 (11) 9.0 μg/m3 (38) 38.0
 
Jan. 22, 2022, 10 a.m. 16.1 ppb (16) 5.7 ppb (6) N/A 10.0 ppb (10) N/A N/A N/A 0.32 ppb (4) 14.0 μg/m3 (13) 7.0 μg/m3 (30) 30.0
 
Jan. 22, 2022, 9 a.m. 16.0 ppb (16) 6.2 ppb (6) N/A 10.0 ppb (10) N/A N/A N/A 0.28 ppb (4) 3.0 μg/m3 (3) 4.0 μg/m3 (17) 17.0
 
Jan. 22, 2022, 8 a.m. 16.4 ppb (16) 7.4 ppb (7) N/A 9.0 ppb (9) N/A N/A N/A 0.23 ppb (3) 3.0 μg/m3 (3) -2.0 μg/m3 (0) 16.0
 
Jan. 22, 2022, 7 a.m. 19.0 ppb (18) 8.6 ppb (9) N/A 11.0 ppb (11) N/A N/A N/A 0.45 ppb (6) 25.0 μg/m3 (24) 19.0 μg/m3 (66) 66.0
 
Jan. 22, 2022, 6 a.m. 19.5 ppb (19) 9.0 ppb (9) N/A 11.0 ppb (11) N/A N/A N/A 0.54 ppb (6) 25.0 μg/m3 (24) 17.0 μg/m3 (62) 62.0
 
Jan. 22, 2022, 5 a.m. 19.5 ppb (19) 8.9 ppb (9) N/A 11.0 ppb (11) N/A N/A N/A 0.54 ppb (6) 33.0 μg/m3 (31) 18.0 μg/m3 (64) 64.0
 
Jan. 22, 2022, 4 a.m. 21.4 ppb (21) 10.0 ppb (10) N/A 11.0 ppb (11) N/A N/A N/A 0.82 ppb (10) 51.0 μg/m3 (48) 26.0 μg/m3 (81) 81.0
 
Jan. 22, 2022, 3 a.m. 14.9 ppb (15) 4.5 ppb (5) N/A 10.0 ppb (10) N/A N/A N/A 0.58 ppb (7) 31.0 μg/m3 (29) 12.0 μg/m3 (50) 50.0
 
Jan. 22, 2022, 2 a.m. 11.2 ppb (11) 2.8 ppb (3) N/A 8.0 ppb (8) N/A N/A N/A 0.35 ppb (4) 16.0 μg/m3 (15) 4.0 μg/m3 (17) 17.0
 
Jan. 22, 2022, 1 a.m. 8.7 ppb (9) 2.3 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A 0.15 ppb (2) 12.0 μg/m3 (12) 1.0 μg/m3 (5) 12.0
 
Jan. 22, 2022, midnight 8.5 ppb (9) 2.2 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A 0.14 ppb (2) 10.0 μg/m3 (10) 0.0 μg/m3 (0) 10.0
 
Jan. 21, 2022, 11 p.m. 8.9 ppb (9) 2.2 ppb (3) N/A 7.0 ppb (7) N/A N/A N/A 0.13 ppb (2) 10.0 μg/m3 (10) N/A 10.0
 
Jan. 21, 2022, 10 p.m. 9.0 ppb (9) 2.2 ppb (3) N/A 7.0 ppb (7) N/A N/A N/A 0.13 ppb (2) 14.0 μg/m3 (13) -1.0 μg/m3 (0) 13.0
 
Jan. 21, 2022, 9 p.m. 8.7 ppb (9) 2.1 ppb (2) N/A 7.0 ppb (7) N/A N/A N/A 0.11 ppb (2) 44.0 μg/m3 (41) 1.0 μg/m3 (5) 41.0
 
Jan. 21, 2022, 8 p.m. 8.5 ppb (9) 2.0 ppb (2) N/A 7.0 ppb (7) N/A N/A N/A 0.11 ppb (2) 36.0 μg/m3 (34) 2.0 μg/m3 (9) 34.0
 
Jan. 21, 2022, 7 p.m. 9.5 ppb (9) 2.3 ppb (3) N/A 7.0 ppb (7) N/A N/A N/A 0.12 ppb (2) 17.0 μg/m3 (16) 2.0 μg/m3 (9) 16.0
 
Jan. 21, 2022, 6 p.m. 10.8 ppb (11) 3.0 ppb (3) N/A 8.0 ppb (8) N/A N/A N/A N/A 12.0 μg/m3 (12) -2.0 μg/m3 (0) 12.0
 
Jan. 21, 2022, 5 p.m. 11.9 ppb (12) 3.7 ppb (4) N/A 8.0 ppb (8) N/A N/A N/A 0.12 ppb (2) 14.0 μg/m3 (13) -2.0 μg/m3 (0) 13.0
 
Jan. 21, 2022, 4 p.m. 13.0 ppb (13) 4.3 ppb (5) N/A 9.0 ppb (9) N/A N/A N/A 0.13 ppb (2) 3.0 μg/m3 (3) 3.0 μg/m3 (13) 13.0
 
Jan. 21, 2022, 3 p.m. 14.0 ppb (14) 4.8 ppb (5) N/A 9.0 ppb (9) N/A N/A N/A 0.17 ppb (3) 33.0 μg/m3 (31) 6.0 μg/m3 (25) 31.0
 
Jan. 21, 2022, 2 p.m. 13.0 ppb (13) 5.0 ppb (5) N/A 8.0 ppb (8) N/A N/A N/A 0.14 ppb (2) 6.0 μg/m3 (6) 5.0 μg/m3 (21) 21.0
 
Jan. 21, 2022, 1 p.m. 14.0 ppb (14) 5.7 ppb (6) N/A 8.0 ppb (8) N/A N/A N/A 0.21 ppb (3) 9.0 μg/m3 (9) 8.0 μg/m3 (34) 34.0
 
Jan. 21, 2022, noon N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) 10.0 μg/m3 (42) 42.0
 
Jan. 21, 2022, 11 a.m. 13.2 ppb (13) 6.2 ppb (6) N/A 7.0 ppb (7) N/A N/A N/A 0.24 ppb (3) 20.0 μg/m3 (19) 14.0 μg/m3 (55) 55.0