ID: 7873

AQSQID: 840060374009

Site Name: Long Beach Signal Hill

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

Updated: Jan. 21, 2022, 10:33 a.m.

Location: Long Beach (E 20th St), CA

Reporting: True, Located: True

Current AQI: 47.0

Long Beach (E 20th St) CA, US: 33.793713, -118.171019

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 21, 2022, 10 a.m. 59.5 ppb (57) 31.7 ppb (30) N/A 28.0 ppb (27) N/A 0.0 ppb (0) 1.0 ppb (1) N/A 24.0 μg/m3 (23) N/A 57.0
 
Jan. 21, 2022, 9 a.m. 49.1 ppb (47) 24.0 ppb (23) N/A 25.0 ppb (24) N/A 0.0 ppb (0) 1.0 ppb (1) N/A 23.0 μg/m3 (22) N/A 47.0
 
Jan. 21, 2022, 8 a.m. 37.0 ppb (35) 11.6 ppb (11) N/A 25.0 ppb (24) N/A 0.0 ppb (0) 1.0 ppb (1) N/A 22.0 μg/m3 (21) N/A 35.0
 
Jan. 21, 2022, 7 a.m. 39.6 ppb (38) 10.1 ppb (10) N/A 30.0 ppb (29) N/A 0.0 ppb (0) 1.0 ppb (1) N/A 29.0 μg/m3 (27) N/A 38.0
 
Jan. 21, 2022, 6 a.m. 32.1 ppb (31) 4.6 ppb (5) N/A 28.0 ppb (27) N/A 0.0 ppb (0) 3.0 ppb (3) N/A 30.0 μg/m3 (28) N/A 31.0
 
Jan. 21, 2022, 5 a.m. 23.1 ppb (22) 2.4 ppb (3) N/A 21.0 ppb (20) N/A 0.0 ppb (0) 13.0 ppb (13) N/A 25.0 μg/m3 (24) N/A 24.0
 
Jan. 21, 2022, 4 a.m. 14.7 ppb (14) 0.9 ppb (1) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 26.0 ppb (25) N/A 18.0 μg/m3 (17) N/A 25.0
 
Jan. 21, 2022, 3 a.m. 37.5 ppb (36) 2.9 ppb (3) N/A 35.0 ppb (34) N/A 1.0 ppb (2) 7.0 ppb (7) N/A 24.0 μg/m3 (23) N/A 36.0
 
Jan. 21, 2022, 2 a.m. 31.8 ppb (30) 2.3 ppb (3) N/A 30.0 ppb (29) N/A 0.0 ppb (0) 12.0 ppb (12) N/A 20.0 μg/m3 (19) N/A 30.0
 
Jan. 21, 2022, 1 a.m. 18.3 ppb (18) 1.0 ppb (1) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 29.0 ppb (27) N/A 13.0 μg/m3 (13) N/A 27.0
 
Jan. 21, 2022, midnight 21.5 ppb (21) 2.5 ppb (3) N/A 19.0 ppb (18) N/A 1.0 ppb (2) 32.0 ppb (30) N/A 17.0 μg/m3 (16) N/A 30.0
 
Jan. 20, 2022, 11 p.m. 21.1 ppb (20) 3.7 ppb (4) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 33.0 ppb (31) N/A 42.0 μg/m3 (39) N/A 39.0
 
Jan. 20, 2022, 10 p.m. 16.4 ppb (16) 3.7 ppb (4) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 37.0 ppb (35) N/A 27.0 μg/m3 (25) N/A 35.0
 
Jan. 20, 2022, 9 p.m. 18.0 ppb (17) 4.0 ppb (4) N/A 14.0 ppb (14) N/A 1.0 ppb (2) 40.0 ppb (38) N/A 18.0 μg/m3 (17) N/A 38.0
 
Jan. 20, 2022, 8 p.m. 26.9 ppb (26) 7.2 ppb (7) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 33.0 ppb (31) N/A 20.0 μg/m3 (19) N/A 31.0
 
Jan. 20, 2022, 7 p.m. 45.8 ppb (44) 17.2 ppb (17) N/A 29.0 ppb (28) N/A 1.0 ppb (2) 24.0 ppb (23) N/A 28.0 μg/m3 (26) N/A 44.0
 
Jan. 20, 2022, 6 p.m. 69.2 ppb (68) 34.7 ppb (33) N/A 34.0 ppb (33) N/A 1.0 ppb (2) 13.0 ppb (13) N/A 42.0 μg/m3 (39) N/A 68.0
 
Jan. 20, 2022, 5 p.m. 68.9 ppb (67) 37.7 ppb (36) N/A 31.0 ppb (30) N/A 1.0 ppb (2) 9.0 ppb (9) N/A 38.0 μg/m3 (36) N/A 67.0
 
Jan. 20, 2022, 4 p.m. 82.3 ppb (82) 51.8 ppb (49) N/A 30.0 ppb (29) N/A 1.0 ppb (2) 4.0 ppb (4) N/A 35.0 μg/m3 (33) N/A 82.0
 
Jan. 20, 2022, 3 p.m. 95.0 ppb (95) 66.8 ppb (65) N/A 28.0 ppb (27) N/A 0.0 ppb (0) 2.0 ppb (2) N/A 43.0 μg/m3 (40) N/A 95.0
 
Jan. 20, 2022, 2 p.m. 103.6 ppb (102) 80.3 ppb (80) N/A 23.0 ppb (22) N/A 0.0 ppb (0) 0.0 ppb (0) N/A 39.0 μg/m3 (37) N/A 102.0
 
Jan. 20, 2022, 1 p.m. 86.6 ppb (86) 61.2 ppb (59) N/A 25.0 ppb (24) N/A 0.0 ppb (0) 0.0 ppb (0) N/A 37.0 μg/m3 (35) N/A 86.0
 
Jan. 20, 2022, noon 74.2 ppb (73) 45.7 ppb (44) N/A 28.0 ppb (27) N/A 0.0 ppb (0) 0.0 ppb (0) N/A 38.0 μg/m3 (36) N/A 73.0
 
Jan. 20, 2022, 11 a.m. 55.6 ppb (53) 27.0 ppb (26) N/A 29.0 ppb (28) N/A 0.0 ppb (0) 0.0 ppb (0) N/A 29.0 μg/m3 (27) N/A 53.0
 
Jan. 20, 2022, 10 a.m. 33.5 ppb (32) 6.3 ppb (6) N/A 27.0 ppb (26) N/A 0.0 ppb (0) 1.0 ppb (1) N/A 17.0 μg/m3 (16) N/A 32.0
 
Jan. 20, 2022, 9 a.m. 30.0 ppb (29) 5.2 ppb (5) N/A 25.0 ppb (24) N/A 0.0 ppb (0) 4.0 ppb (4) N/A 23.0 μg/m3 (22) N/A 29.0
 
Jan. 20, 2022, 8 a.m. 25.1 ppb (24) 2.3 ppb (3) N/A 23.0 ppb (22) N/A 0.0 ppb (0) 11.0 ppb (11) N/A 21.0 μg/m3 (20) N/A 24.0
 
Jan. 20, 2022, 7 a.m. 59.5 ppb (57) 25.0 ppb (24) N/A 35.0 ppb (34) N/A 0.0 ppb (0) 1.0 ppb (1) N/A 28.0 μg/m3 (26) N/A 57.0
 
Jan. 20, 2022, 6 a.m. 54.0 ppb (51) 17.6 ppb (17) N/A 36.0 ppb (34) N/A 0.0 ppb (0) 1.0 ppb (1) N/A 36.0 μg/m3 (34) N/A 51.0
 
Jan. 20, 2022, 5 a.m. 36.4 ppb (35) 2.4 ppb (3) N/A 34.0 ppb (33) N/A 0.0 ppb (0) 5.0 ppb (5) N/A 25.0 μg/m3 (24) N/A 35.0
 
Jan. 20, 2022, 4 a.m. 24.9 ppb (24) 0.9 ppb (1) N/A 24.0 ppb (23) N/A 0.0 ppb (0) 16.0 ppb (15) N/A 24.0 μg/m3 (23) N/A 24.0
 
Jan. 20, 2022, 3 a.m. 22.9 ppb (22) 0.7 ppb (1) N/A 22.0 ppb (21) N/A 0.0 ppb (0) 19.0 ppb (18) N/A 20.0 μg/m3 (19) N/A 22.0
 
Jan. 20, 2022, 2 a.m. 20.3 ppb (20) 1.1 ppb (2) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 25.0 ppb (24) N/A 19.0 μg/m3 (18) N/A 24.0
 
Jan. 20, 2022, 1 a.m. 16.1 ppb (16) 1.3 ppb (2) N/A 15.0 ppb (15) N/A 0.0 ppb (0) 31.0 ppb (29) N/A 19.0 μg/m3 (18) N/A 29.0
 
Jan. 20, 2022, midnight 13.9 ppb (14) 1.3 ppb (2) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 35.0 ppb (33) N/A 23.0 μg/m3 (22) N/A 33.0
 
Jan. 19, 2022, 11 p.m. 15.3 ppb (15) 2.5 ppb (3) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 36.0 ppb (34) N/A 25.0 μg/m3 (24) N/A 34.0
 
Jan. 19, 2022, 10 p.m. 22.0 ppb (21) 5.5 ppb (6) N/A 16.0 ppb (16) N/A 1.0 ppb (2) 31.0 ppb (29) N/A 32.0 μg/m3 (30) N/A 30.0
 
Jan. 19, 2022, 9 p.m. 25.3 ppb (24) 6.2 ppb (6) N/A 19.0 ppb (18) N/A 1.0 ppb (2) 26.0 ppb (25) N/A 33.0 μg/m3 (31) N/A 31.0
 
Jan. 19, 2022, 8 p.m. 23.1 ppb (22) 5.4 ppb (6) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 25.0 ppb (24) N/A 38.0 μg/m3 (36) N/A 36.0
 
Jan. 19, 2022, 7 p.m. 22.8 ppb (22) 4.8 ppb (5) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 22.0 ppb (21) N/A 34.0 μg/m3 (32) N/A 32.0
 
Jan. 19, 2022, 6 p.m. 17.3 ppb (17) 3.5 ppb (4) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 25.0 ppb (24) N/A 32.0 μg/m3 (30) N/A 30.0
 
Jan. 19, 2022, 5 p.m. 23.9 ppb (23) 5.8 ppb (6) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 19.0 ppb (18) N/A 33.0 μg/m3 (31) N/A 31.0
 
Jan. 19, 2022, 4 p.m. 35.8 ppb (34) 12.3 ppb (12) N/A 24.0 ppb (23) N/A 0.0 ppb (0) 9.0 ppb (9) N/A 43.0 μg/m3 (40) N/A 40.0
 
Jan. 19, 2022, 3 p.m. 38.4 ppb (37) 12.2 ppb (12) N/A 26.0 ppb (25) N/A 0.0 ppb (0) 2.0 ppb (2) N/A 36.0 μg/m3 (34) N/A 37.0
 
Jan. 19, 2022, 2 p.m. 50.9 ppb (49) 25.4 ppb (24) N/A 25.0 ppb (24) N/A 0.0 ppb (0) 0.0 ppb (0) N/A 36.0 μg/m3 (34) N/A 49.0
 
Jan. 19, 2022, 1 p.m. 39.7 ppb (38) 20.0 ppb (19) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 0.0 ppb (0) N/A 17.0 μg/m3 (16) N/A 38.0
 
Jan. 19, 2022, noon 24.6 ppb (24) 5.3 ppb (5) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 1.0 ppb (1) N/A 18.0 μg/m3 (17) N/A 24.0
 
Jan. 19, 2022, 11 a.m. 19.9 ppb (19) 1.5 ppb (2) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 7.0 ppb (7) N/A 19.0 μg/m3 (18) N/A 19.0
 
Jan. 19, 2022, 10 a.m. 27.2 ppb (26) 1.6 ppb (2) N/A 26.0 ppb (25) N/A 0.0 ppb (0) 3.0 ppb (3) N/A 20.0 μg/m3 (19) N/A 26.0
 
Jan. 19, 2022, 9 a.m. 22.9 ppb (22) 0.8 ppb (1) N/A 22.0 ppb (21) N/A 0.0 ppb (0) 8.0 ppb (8) N/A 17.0 μg/m3 (16) N/A 22.0
 
Jan. 19, 2022, 8 a.m. 14.1 ppb (14) 0.5 ppb (1) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 18.0 ppb (17) N/A 16.0 μg/m3 (15) N/A 17.0
 
Jan. 19, 2022, 7 a.m. 16.4 ppb (16) 0.5 ppb (1) N/A 16.0 ppb (16) N/A 0.0 ppb (0) 23.0 ppb (22) N/A 18.0 μg/m3 (17) N/A 22.0
 
Jan. 19, 2022, 6 a.m. 17.2 ppb (17) 0.6 ppb (1) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 22.0 ppb (21) N/A 24.0 μg/m3 (23) N/A 23.0
 
Jan. 19, 2022, 5 a.m. 21.2 ppb (20) 1.1 ppb (2) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 14.0 ppb (13) N/A 17.0 μg/m3 (16) N/A 20.0
 
Jan. 19, 2022, 4 a.m. 19.8 ppb (19) 0.8 ppb (1) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 19.0 ppb (18) N/A 20.0 μg/m3 (19) N/A 19.0
 
Jan. 19, 2022, 3 a.m. 19.6 ppb (19) 0.6 ppb (1) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 23.0 ppb (22) N/A 23.0 μg/m3 (22) N/A 22.0
 
Jan. 19, 2022, 2 a.m. 13.5 ppb (13) 0.4 ppb (1) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 31.0 ppb (29) N/A 24.0 μg/m3 (23) N/A 29.0
 
Jan. 19, 2022, 1 a.m. 14.0 ppb (14) 1.1 ppb (2) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 32.0 ppb (30) N/A 16.0 μg/m3 (15) N/A 30.0
 
Jan. 19, 2022, midnight 10.9 ppb (11) 0.9 ppb (1) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 34.0 ppb (32) N/A 15.0 μg/m3 (14) N/A 32.0
 
Jan. 18, 2022, 11 p.m. 10.6 ppb (10) 1.4 ppb (2) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 36.0 ppb (34) N/A 22.0 μg/m3 (21) N/A 34.0
 
Jan. 18, 2022, 10 p.m. 7.5 ppb (8) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 36.0 ppb (34) N/A 11.0 μg/m3 (11) N/A 34.0
 
Jan. 18, 2022, 9 p.m. 9.8 ppb (10) 2.1 ppb (2) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 34.0 ppb (32) N/A 7.0 μg/m3 (7) N/A 32.0
 
Jan. 18, 2022, 8 p.m. 7.5 ppb (8) 0.8 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 38.0 ppb (36) N/A 9.0 μg/m3 (9) N/A 36.0
 
Jan. 18, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (21) N/A 21.0
 
Jan. 18, 2022, 6 p.m. 28.1 ppb (27) 8.4 ppb (8) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 22.0 ppb (21) 0.31 ppb (4) 21.0 μg/m3 (20) N/A 27.0
 
Jan. 18, 2022, 5 p.m. 17.6 ppb (17) 2.4 ppb (3) N/A 15.0 ppb (15) N/A 0.0 ppb (0) 22.0 ppb (21) 0.3 ppb (4) 12.0 μg/m3 (12) N/A 21.0
 
Jan. 18, 2022, 4 p.m. 21.5 ppb (21) 3.0 ppb (3) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 23.0 ppb (22) 0.3 ppb (4) 20.0 μg/m3 (19) N/A 22.0
 
Jan. 18, 2022, 3 p.m. 16.0 ppb (16) 3.3 ppb (4) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 27.0 ppb (25) 0.26 ppb (4) 20.0 μg/m3 (19) N/A 25.0
 
Jan. 18, 2022, 2 p.m. 9.6 ppb (10) 0.4 ppb (1) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 29.0 ppb (27) 0.21 ppb (3) 12.0 μg/m3 (12) N/A 27.0
 
Jan. 18, 2022, 1 p.m. 10.7 ppb (11) 0.3 ppb (1) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 28.0 ppb (26) 0.18 ppb (3) 9.0 μg/m3 (9) N/A 26.0
 
Jan. 18, 2022, noon 6.1 ppb (6) 0.1 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (31) 0.14 ppb (2) 6.0 μg/m3 (6) N/A 31.0
 
Jan. 18, 2022, 11 a.m. 3.7 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 36.0 ppb (34) 0.16 ppb (3) 14.0 μg/m3 (13) N/A 34.0
 
Jan. 18, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (18) N/A 18.0
 
Jan. 17, 2022, 9 p.m. 9.1 ppb (9) 1.6 ppb (2) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 38.0 ppb (36) 0.15 ppb (2) 11.0 μg/m3 (11) N/A 36.0
 
Jan. 17, 2022, 8 p.m. 8.4 ppb (8) 1.6 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 38.0 ppb (36) 0.16 ppb (3) 10.0 μg/m3 (10) N/A 36.0
 
Jan. 17, 2022, 7 p.m. 13.0 ppb (13) 3.3 ppb (4) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 34.0 ppb (32) 0.16 ppb (3) 22.0 μg/m3 (21) N/A 32.0
 
Jan. 17, 2022, 6 p.m. 5.9 ppb (6) 0.9 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 36.0 ppb (34) 0.2 ppb (3) 23.0 μg/m3 (22) N/A 34.0
 
Jan. 17, 2022, 5 p.m. 7.4 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 31.0 ppb (29) 0.23 ppb (3) 25.0 μg/m3 (24) N/A 29.0
 
Jan. 17, 2022, 4 p.m. 7.9 ppb (8) 0.7 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 29.0 ppb (27) 0.2 ppb (3) 20.0 μg/m3 (19) N/A 27.0
 
Jan. 17, 2022, 3 p.m. 7.4 ppb (7) 0.5 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 29.0 ppb (27) 0.22 ppb (3) 20.0 μg/m3 (19) N/A 27.0
 
Jan. 17, 2022, 2 p.m. 7.1 ppb (7) 0.2 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 28.0 ppb (26) 0.21 ppb (3) 17.0 μg/m3 (16) N/A 26.0
 
Jan. 17, 2022, 1 p.m. 5.2 ppb (5) 0.2 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (29) 0.18 ppb (3) 18.0 μg/m3 (17) N/A 29.0
 
Jan. 17, 2022, noon 4.7 ppb (5) 0.3 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (29) 0.23 ppb (3) 29.0 μg/m3 (27) N/A 29.0
 
Jan. 17, 2022, 11 a.m. 8.2 ppb (8) 0.4 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 19.0 ppb (18) 0.26 ppb (4) 26.0 μg/m3 (25) N/A 25.0
 
Jan. 17, 2022, 10 a.m. 7.9 ppb (8) 0.4 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 21.0 ppb (20) 0.24 ppb (3) 21.0 μg/m3 (20) N/A 20.0
 
Jan. 17, 2022, 9 a.m. 7.2 ppb (7) 0.4 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 22.0 ppb (21) 0.23 ppb (3) 11.0 μg/m3 (11) N/A 21.0
 
Jan. 17, 2022, 8 a.m. 5.5 ppb (6) 0.3 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 26.0 ppb (25) 0.21 ppb (3) 21.0 μg/m3 (20) N/A 25.0
 
Jan. 17, 2022, 7 a.m. 12.2 ppb (12) 0.7 ppb (1) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 23.0 ppb (22) 0.2 ppb (3) 14.0 μg/m3 (13) N/A 22.0
 
Jan. 17, 2022, 6 a.m. 19.8 ppb (19) 0.7 ppb (1) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 12.0 ppb (12) 0.19 ppb (3) 22.0 μg/m3 (21) N/A 21.0
 
Jan. 17, 2022, 5 a.m. 21.0 ppb (20) 1.7 ppb (2) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 14.0 ppb (13) 0.22 ppb (3) 20.0 μg/m3 (19) N/A 20.0
 
Jan. 17, 2022, 4 a.m. 18.2 ppb (18) 0.8 ppb (1) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 17.0 ppb (16) 0.28 ppb (4) 22.0 μg/m3 (21) N/A 21.0
 
Jan. 17, 2022, 3 a.m. 18.1 ppb (18) 0.3 ppb (1) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 21.0 ppb (20) 0.26 ppb (4) 21.0 μg/m3 (20) N/A 20.0
 
Jan. 17, 2022, 2 a.m. 22.6 ppb (22) 0.6 ppb (1) N/A 22.0 ppb (21) N/A 0.0 ppb (0) 18.0 ppb (17) 0.28 ppb (4) 18.0 μg/m3 (17) N/A 22.0
 
Jan. 17, 2022, 1 a.m. 32.6 ppb (31) 1.2 ppb (2) N/A 31.0 ppb (30) N/A 0.0 ppb (0) 13.0 ppb (13) 0.35 ppb (4) 27.0 μg/m3 (25) N/A 31.0
 
Jan. 17, 2022, midnight 33.3 ppb (32) 3.4 ppb (4) N/A 30.0 ppb (29) N/A 0.0 ppb (0) 18.0 ppb (17) 0.37 ppb (5) 42.0 μg/m3 (39) N/A 39.0
 
Jan. 16, 2022, 11 p.m. 33.3 ppb (32) 8.5 ppb (9) N/A 25.0 ppb (24) N/A 0.0 ppb (0) 24.0 ppb (23) 0.26 ppb (4) 20.0 μg/m3 (19) N/A 32.0
 
Jan. 16, 2022, 10 p.m. 20.4 ppb (20) 5.1 ppb (5) N/A 15.0 ppb (15) N/A 0.0 ppb (0) 33.0 ppb (31) 0.22 ppb (3) 12.0 μg/m3 (12) N/A 31.0
 
Jan. 16, 2022, 9 p.m. 30.2 ppb (29) 10.0 ppb (10) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 28.0 ppb (26) 0.28 ppb (4) 32.0 μg/m3 (30) N/A 30.0
 
Jan. 16, 2022, 8 p.m. 31.8 ppb (30) 11.8 ppb (12) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 27.0 ppb (25) 0.36 ppb (5) 30.0 μg/m3 (28) N/A 30.0
 
Jan. 16, 2022, 7 p.m. 21.1 ppb (20) 5.6 ppb (6) N/A 15.0 ppb (15) N/A 0.0 ppb (0) 29.0 ppb (27) 0.46 ppb (6) 37.0 μg/m3 (35) N/A 35.0
 
Jan. 16, 2022, 6 p.m. 20.3 ppb (20) 5.5 ppb (6) N/A 15.0 ppb (15) N/A 0.0 ppb (0) 28.0 ppb (26) 0.35 ppb (4) 13.0 μg/m3 (13) N/A 26.0
 
Jan. 16, 2022, 5 p.m. 23.5 ppb (23) 7.6 ppb (8) N/A 16.0 ppb (16) N/A 0.0 ppb (0) 23.0 ppb (22) 0.38 ppb (5) 14.0 μg/m3 (13) N/A 23.0
 
Jan. 16, 2022, 4 p.m. 43.3 ppb (41) 19.1 ppb (19) N/A 24.0 ppb (23) N/A 0.0 ppb (0) 10.0 ppb (10) 0.66 ppb (8) 22.0 μg/m3 (21) N/A 41.0
 
Jan. 16, 2022, 3 p.m. 52.2 ppb (50) 25.0 ppb (24) N/A 27.0 ppb (26) N/A 0.0 ppb (0) 3.0 ppb (3) 0.84 ppb (10) 26.0 μg/m3 (25) N/A 50.0
 
Jan. 16, 2022, 2 p.m. 50.4 ppb (48) 19.9 ppb (19) N/A 31.0 ppb (30) N/A 0.0 ppb (0) 1.0 ppb (1) 0.79 ppb (10) 23.0 μg/m3 (22) N/A 48.0
 
Jan. 16, 2022, 1 p.m. 38.1 ppb (36) 7.6 ppb (8) N/A 31.0 ppb (30) N/A 0.0 ppb (0) 1.0 ppb (1) 0.66 ppb (8) 24.0 μg/m3 (23) N/A 36.0
 
Jan. 16, 2022, noon 40.3 ppb (39) 9.5 ppb (9) N/A 31.0 ppb (30) N/A 0.0 ppb (0) 1.0 ppb (1) 0.71 ppb (8) 27.0 μg/m3 (25) N/A 39.0
 
Jan. 16, 2022, 11 a.m. 47.1 ppb (45) 16.9 ppb (16) N/A 30.0 ppb (29) N/A 0.0 ppb (0) 1.0 ppb (1) 0.86 ppb (11) 29.0 μg/m3 (27) N/A 45.0
 
Jan. 16, 2022, 10 a.m. 36.3 ppb (35) 5.6 ppb (6) N/A 31.0 ppb (30) N/A 0.0 ppb (0) 2.0 ppb (2) 0.72 ppb (8) 27.0 μg/m3 (25) N/A 35.0
 
Jan. 16, 2022, 9 a.m. 21.5 ppb (21) 0.6 ppb (1) N/A 21.0 ppb (20) N/A 0.0 ppb (0) 13.0 ppb (13) 0.44 ppb (5) 22.0 μg/m3 (21) N/A 21.0
 
Jan. 16, 2022, 8 a.m. 19.7 ppb (19) 0.7 ppb (1) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 15.0 ppb (14) 0.43 ppb (5) 17.0 μg/m3 (16) N/A 19.0
 
Jan. 16, 2022, 7 a.m. 21.1 ppb (20) 0.9 ppb (1) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 13.0 ppb (13) 0.45 ppb (6) 16.0 μg/m3 (15) N/A 20.0
 
Jan. 16, 2022, 6 a.m. 19.1 ppb (19) 0.7 ppb (1) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 16.0 ppb (15) 0.42 ppb (5) 19.0 μg/m3 (18) N/A 19.0
 
Jan. 16, 2022, 5 a.m. 22.7 ppb (22) 1.3 ppb (2) N/A 21.0 ppb (20) N/A 0.0 ppb (0) 15.0 ppb (14) 0.45 ppb (6) 18.0 μg/m3 (17) N/A 22.0
 
Jan. 16, 2022, 4 a.m. 24.8 ppb (24) 0.9 ppb (1) N/A 24.0 ppb (23) N/A 0.0 ppb (0) 13.0 ppb (13) 0.47 ppb (6) 25.0 μg/m3 (24) N/A 24.0
 
Jan. 16, 2022, 3 a.m. 29.0 ppb (28) 1.3 ppb (2) N/A 28.0 ppb (27) N/A 0.0 ppb (0) 12.0 ppb (12) 0.53 ppb (6) 20.0 μg/m3 (19) N/A 28.0
 
Jan. 16, 2022, 2 a.m. 27.3 ppb (26) 1.3 ppb (2) N/A 26.0 ppb (25) N/A 0.0 ppb (0) 12.0 ppb (12) 0.56 ppb (7) 19.0 μg/m3 (18) N/A 26.0
 
Jan. 16, 2022, 1 a.m. 26.8 ppb (26) 1.0 ppb (1) N/A 26.0 ppb (25) N/A 1.0 ppb (2) 17.0 ppb (16) 0.46 ppb (6) 23.0 μg/m3 (22) N/A 26.0
 
Jan. 16, 2022, midnight 39.8 ppb (38) 4.2 ppb (4) N/A 36.0 ppb (34) N/A 1.0 ppb (2) 8.0 ppb (8) 0.48 ppb (6) 25.0 μg/m3 (24) N/A 38.0
 
Jan. 15, 2022, 11 p.m. 30.3 ppb (29) 4.0 ppb (4) N/A 26.0 ppb (25) N/A 0.0 ppb (0) 18.0 ppb (17) 0.49 ppb (6) 26.0 μg/m3 (25) N/A 29.0
 
Jan. 15, 2022, 10 p.m. 29.4 ppb (28) 5.4 ppb (6) N/A 24.0 ppb (23) N/A 0.0 ppb (0) 22.0 ppb (21) 0.5 ppb (6) 26.0 μg/m3 (25) N/A 28.0
 
Jan. 15, 2022, 9 p.m. 23.2 ppb (22) 4.6 ppb (5) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 25.0 ppb (24) 0.43 ppb (5) 20.0 μg/m3 (19) N/A 24.0
 
Jan. 15, 2022, 8 p.m. 21.0 ppb (20) 4.2 ppb (4) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 25.0 ppb (24) 0.36 ppb (5) 23.0 μg/m3 (22) N/A 24.0
 
Jan. 15, 2022, 7 p.m. 23.6 ppb (23) 4.2 ppb (4) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 21.0 ppb (20) 0.37 ppb (5) 23.0 μg/m3 (22) N/A 23.0
 
Jan. 15, 2022, 6 p.m. 15.5 ppb (15) 2.2 ppb (3) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 26.0 ppb (25) 0.28 ppb (4) 14.0 μg/m3 (13) N/A 25.0
 
Jan. 15, 2022, 5 p.m. 38.1 ppb (36) 14.6 ppb (14) N/A 23.0 ppb (22) N/A 0.0 ppb (0) 17.0 ppb (16) 0.47 ppb (6) 27.0 μg/m3 (25) N/A 36.0
 
Jan. 15, 2022, 4 p.m. 107.1 ppb (103) 68.3 ppb (67) N/A 39.0 ppb (37) N/A 1.0 ppb (2) 1.0 ppb (1) 1.26 ppb (15) 47.0 μg/m3 (44) N/A 103.0
 
Jan. 15, 2022, 3 p.m. 111.2 ppb (103) 75.6 ppb (75) N/A 36.0 ppb (34) N/A 1.0 ppb (2) 1.0 ppb (1) 1.45 ppb (16) 46.0 μg/m3 (43) N/A 103.0
 
Jan. 15, 2022, 2 p.m. 109.0 ppb (103) 71.2 ppb (70) N/A 38.0 ppb (36) N/A 1.0 ppb (2) 1.0 ppb (1) 1.41 ppb (16) 42.0 μg/m3 (39) N/A 103.0
 
Jan. 15, 2022, 1 p.m. 93.2 ppb (93) N/A N/A 41.0 ppb (39) N/A 1.0 ppb (2) 1.0 ppb (1) 1.24 ppb (14) 42.0 μg/m3 (39) N/A 93.0
 
Jan. 15, 2022, noon 80.3 ppb (80) N/A N/A 44.0 ppb (42) N/A 1.0 ppb (2) 1.0 ppb (1) 1.07 ppb (13) 43.0 μg/m3 (40) N/A 80.0
 
Jan. 15, 2022, 11 a.m. 101.0 ppb (101) 57.4 ppb (55) N/A 44.0 ppb (42) N/A 1.0 ppb (2) 2.0 ppb (2) 1.52 ppb (18) 53.0 μg/m3 (50) N/A 101.0
 
Jan. 15, 2022, 10 a.m. 125.9 ppb (106) 82.8 ppb (82) N/A 43.0 ppb (41) N/A 1.0 ppb (2) 2.0 ppb (2) 1.74 ppb (20) 57.0 μg/m3 (52) N/A 106.0
 
Jan. 15, 2022, 9 a.m. 78.9 ppb (78) 36.3 ppb (35) N/A 43.0 ppb (41) N/A 1.0 ppb (2) 2.0 ppb (2) 1.09 ppb (13) 44.0 μg/m3 (41) N/A 78.0
 
Jan. 15, 2022, 8 a.m. 101.9 ppb (102) 56.2 ppb (54) N/A 46.0 ppb (44) N/A 1.0 ppb (2) 2.0 ppb (2) 1.3 ppb (15) 61.0 μg/m3 (54) N/A 102.0
 
Jan. 15, 2022, 7 a.m. 109.7 ppb (103) 64.6 ppb (63) N/A 45.0 ppb (43) N/A 1.0 ppb (2) 2.0 ppb (2) 1.37 ppb (16) 56.0 μg/m3 (52) N/A 103.0
 
Jan. 15, 2022, 6 a.m. 94.7 ppb (95) 49.3 ppb (47) N/A 45.0 ppb (43) N/A 1.0 ppb (2) 2.0 ppb (2) 1.28 ppb (15) 52.0 μg/m3 (49) N/A 95.0
 
Jan. 15, 2022, 5 a.m. 61.7 ppb (60) 13.1 ppb (13) N/A 49.0 ppb (47) N/A 1.0 ppb (2) 2.0 ppb (2) 0.79 ppb (10) 42.0 μg/m3 (39) N/A 60.0
 
Jan. 15, 2022, 4 a.m. 55.9 ppb (54) 13.7 ppb (13) N/A 42.0 ppb (40) N/A 1.0 ppb (2) 2.0 ppb (2) 1.03 ppb (12) 38.0 μg/m3 (36) N/A 54.0
 
Jan. 15, 2022, 3 a.m. 35.5 ppb (34) 2.7 ppb (3) N/A 33.0 ppb (32) N/A 0.0 ppb (0) 11.0 ppb (11) 0.62 ppb (7) 34.0 μg/m3 (32) N/A 34.0
 
Jan. 15, 2022, 2 a.m. 25.4 ppb (24) 1.0 ppb (1) N/A 24.0 ppb (23) N/A 0.0 ppb (0) 21.0 ppb (20) 0.43 ppb (5) 28.0 μg/m3 (26) N/A 26.0
 
Jan. 15, 2022, 1 a.m. 30.8 ppb (30) 1.5 ppb (2) N/A 29.0 ppb (28) N/A 1.0 ppb (2) 17.0 ppb (16) 0.44 ppb (5) 36.0 μg/m3 (34) N/A 34.0
 
Jan. 15, 2022, midnight 30.4 ppb (29) 2.8 ppb (3) N/A 28.0 ppb (27) N/A 1.0 ppb (2) 18.0 ppb (17) 0.37 ppb (5) 28.0 μg/m3 (26) N/A 29.0
 
Jan. 14, 2022, 11 p.m. 27.2 ppb (26) 5.5 ppb (6) N/A 22.0 ppb (21) N/A 1.0 ppb (2) 22.0 ppb (21) 0.3 ppb (4) 31.0 μg/m3 (29) N/A 29.0
 
Jan. 14, 2022, 10 p.m. 35.6 ppb (34) 10.0 ppb (10) N/A 26.0 ppb (25) N/A 1.0 ppb (2) 24.0 ppb (23) 0.37 ppb (5) 30.0 μg/m3 (28) N/A 34.0
 
Jan. 14, 2022, 9 p.m. 51.6 ppb (49) 16.4 ppb (16) N/A 35.0 ppb (34) N/A 1.0 ppb (2) 23.0 ppb (22) 0.53 ppb (6) 46.0 μg/m3 (43) N/A 49.0
 
Jan. 14, 2022, 8 p.m. 68.1 ppb (67) 27.6 ppb (27) N/A 41.0 ppb (39) N/A 1.0 ppb (2) 18.0 ppb (17) 0.63 ppb (7) 48.0 μg/m3 (45) N/A 67.0
 
Jan. 14, 2022, 7 p.m. 111.3 ppb (103) 59.9 ppb (58) N/A 51.0 ppb (49) N/A 2.0 ppb (3) 11.0 ppb (11) 0.85 ppb (10) 82.0 μg/m3 (65) N/A 103.0
 
Jan. 14, 2022, 6 p.m. 107.8 ppb (103) 54.6 ppb (52) N/A 53.0 ppb (50) N/A 1.0 ppb (2) 10.0 ppb (10) 1.16 ppb (14) 63.0 μg/m3 (55) N/A 103.0
 
Jan. 14, 2022, 5 p.m. 136.9 ppb (108) 83.6 ppb (83) N/A 53.0 ppb (50) N/A 1.0 ppb (2) 6.0 ppb (6) 1.49 ppb (18) 69.0 μg/m3 (58) N/A 108.0
 
Jan. 14, 2022, 4 p.m. 163.8 ppb (113) 116.3 ppb (104) N/A 48.0 ppb (46) N/A 1.0 ppb (2) 3.0 ppb (3) 1.66 ppb (20) 72.0 μg/m3 (60) N/A 113.0
 
Jan. 14, 2022, 3 p.m. 119.6 ppb (105) 93.5 ppb (94) N/A 26.0 ppb (25) N/A 1.0 ppb (2) 1.0 ppb (1) 1.46 ppb (18) 59.0 μg/m3 (53) N/A 105.0
 
Jan. 14, 2022, 2 p.m. 71.6 ppb (70) 51.9 ppb (49) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 1.0 ppb (1) 1.31 ppb (15) 42.0 μg/m3 (39) N/A 70.0
 
Jan. 14, 2022, 1 p.m. 61.5 ppb (59) 36.4 ppb (35) N/A 25.0 ppb (24) N/A 0.0 ppb (0) 0.0 ppb (0) 0.93 ppb (11) 38.0 μg/m3 (36) N/A 59.0
 
Jan. 14, 2022, noon 58.2 ppb (56) 31.0 ppb (30) N/A 27.0 ppb (26) N/A 0.0 ppb (0) 1.0 ppb (1) 0.88 ppb (11) 36.0 μg/m3 (34) N/A 56.0
 
Jan. 14, 2022, 11 a.m. 53.0 ppb (50) 24.2 ppb (23) N/A 29.0 ppb (28) N/A 0.0 ppb (0) 1.0 ppb (1) 0.84 ppb (10) 29.0 μg/m3 (27) N/A 50.0
 
Jan. 14, 2022, 10 a.m. 49.1 ppb (47) 18.6 ppb (18) N/A 30.0 ppb (29) N/A 0.0 ppb (0) 1.0 ppb (1) 0.63 ppb (7) 24.0 μg/m3 (23) N/A 47.0
 
Jan. 14, 2022, 9 a.m. 41.8 ppb (40) 9.4 ppb (9) N/A 32.0 ppb (31) N/A 0.0 ppb (0) 1.0 ppb (1) 0.49 ppb (6) 20.0 μg/m3 (19) N/A 40.0
 
Jan. 14, 2022, 8 a.m. 35.0 ppb (34) 3.0 ppb (3) N/A 32.0 ppb (31) N/A 0.0 ppb (0) 3.0 ppb (3) 0.5 ppb (6) 30.0 μg/m3 (28) N/A 34.0
 
Jan. 14, 2022, 7 a.m. 43.7 ppb (42) 6.0 ppb (6) N/A 38.0 ppb (36) N/A 1.0 ppb (2) 1.0 ppb (1) 0.72 ppb (8) 32.0 μg/m3 (30) N/A 42.0
 
Jan. 14, 2022, 6 a.m. 48.3 ppb (46) 8.7 ppb (9) N/A 40.0 ppb (38) N/A 1.0 ppb (2) 2.0 ppb (2) 0.54 ppb (6) 38.0 μg/m3 (36) N/A 46.0
 
Jan. 14, 2022, 5 a.m. 60.6 ppb (59) 19.7 ppb (19) N/A 41.0 ppb (39) N/A 1.0 ppb (2) 1.0 ppb (1) 0.8 ppb (10) 42.0 μg/m3 (39) N/A 59.0
 
Jan. 14, 2022, 4 a.m. 58.8 ppb (57) 15.6 ppb (15) N/A 43.0 ppb (41) N/A 1.0 ppb (2) 1.0 ppb (1) 0.72 ppb (8) 43.0 μg/m3 (40) N/A 57.0
 
Jan. 14, 2022, 3 a.m. 109.0 ppb (103) 56.0 ppb (54) N/A 53.0 ppb (50) N/A 2.0 ppb (3) 1.0 ppb (1) 1.2 ppb (14) 69.0 μg/m3 (58) N/A 103.0
 
Jan. 14, 2022, 2 a.m. 105.7 ppb (102) 55.9 ppb (54) N/A 50.0 ppb (48) N/A 2.0 ppb (3) 1.0 ppb (1) 0.99 ppb (12) 62.0 μg/m3 (55) N/A 102.0
 
Jan. 14, 2022, 1 a.m. 87.4 ppb (87) 45.6 ppb (44) N/A 42.0 ppb (40) N/A 1.0 ppb (2) 1.0 ppb (1) 0.66 ppb (8) 61.0 μg/m3 (54) N/A 87.0
 
Jan. 14, 2022, midnight 79.5 ppb (79) 37.8 ppb (36) N/A 42.0 ppb (40) N/A 1.0 ppb (2) 1.0 ppb (1) 0.54 ppb (6) 43.0 μg/m3 (40) N/A 79.0
 
Jan. 13, 2022, 11 p.m. 81.8 ppb (81) 36.5 ppb (35) N/A 45.0 ppb (43) N/A 1.0 ppb (2) 3.0 ppb (3) 0.68 ppb (8) 54.0 μg/m3 (50) N/A 81.0