ID: 199

AQSQID: 060719004

Site Name: San Bernadino - 4th Street

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

Updated: Jan. 22, 2021, 8:32 p.m.

Location: San Bernardino (E 4th St), CA

Reporting: True, Located: True

Current AQI: 33.0

San Bernardino (E 4th St) CA, US: 34.106678, -117.274063

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 22, 2021, 7 p.m. 10.6 ppb (10) 3.5 ppb (4) N/A 7.0 ppb (7) N/A N/A 35.0 ppb (33) 0.21 ppb (3) 17.2 μg/m3 (16) N/A 33.0
 
Jan. 22, 2021, 6 p.m. 22.2 ppb (21) 8.4 ppb (8) N/A 14.0 ppb (14) N/A N/A 26.0 ppb (25) 0.28 ppb (4) 20.9 μg/m3 (20) N/A 25.0
 
Jan. 22, 2021, 5 p.m. 33.4 ppb (32) 13.8 ppb (14) N/A 20.0 ppb (19) N/A N/A 17.0 ppb (16) 0.36 ppb (5) N/A N/A 32.0
 
Jan. 22, 2021, 4 p.m. 52.0 ppb (50) 29.1 ppb (28) N/A 23.0 ppb (22) N/A N/A 9.0 ppb (9) 0.61 ppb (7) N/A N/A 50.0
 
Jan. 22, 2021, 3 p.m. 77.2 ppb (76) 56.3 ppb (54) N/A 21.0 ppb (20) N/A N/A 4.0 ppb (4) 0.95 ppb (11) N/A N/A 76.0
 
Jan. 22, 2021, 2 p.m. 71.9 ppb (71) 50.8 ppb (48) N/A 21.0 ppb (20) N/A N/A 4.0 ppb (4) 0.79 ppb (10) 38.0 μg/m3 (36) N/A 71.0
 
Jan. 22, 2021, 1 p.m. 50.7 ppb (48) 30.9 ppb (30) N/A 20.0 ppb (19) N/A N/A 3.0 ppb (3) 0.7 ppb (8) 30.2 μg/m3 (28) N/A 48.0
 
Jan. 22, 2021, noon 50.4 ppb (48) 31.3 ppb (30) N/A 19.0 ppb (18) N/A N/A 4.0 ppb (4) 0.68 ppb (8) 43.8 μg/m3 (41) N/A 48.0
 
Jan. 22, 2021, 11 a.m. 58.5 ppb (56) 38.8 ppb (37) N/A 20.0 ppb (19) N/A N/A 4.0 ppb (4) 0.81 ppb (10) 41.4 μg/m3 (39) N/A 56.0
 
Jan. 22, 2021, 10 a.m. 62.9 ppb (61) 42.9 ppb (41) N/A 20.0 ppb (19) N/A N/A 4.0 ppb (4) 0.83 ppb (10) 46.1 μg/m3 (43) N/A 61.0
 
Jan. 22, 2021, 9 a.m. 50.1 ppb (48) 29.8 ppb (29) N/A 20.0 ppb (19) N/A N/A 4.0 ppb (4) 0.75 ppb (10) 46.6 μg/m3 (44) N/A 48.0
 
Jan. 22, 2021, 8 a.m. 40.7 ppb (39) 17.4 ppb (17) N/A 23.0 ppb (22) N/A N/A 4.0 ppb (4) 0.58 ppb (7) 90.1 μg/m3 (69) N/A 69.0
 
Jan. 22, 2021, 7 a.m. 31.7 ppb (30) 7.7 ppb (8) N/A 24.0 ppb (23) N/A N/A 4.0 ppb (4) 0.46 ppb (6) 68.2 μg/m3 (58) N/A 58.0
 
Jan. 22, 2021, 6 a.m. 26.1 ppb (25) 3.5 ppb (4) N/A 23.0 ppb (22) N/A N/A 6.0 ppb (6) 0.37 ppb (5) 26.9 μg/m3 (25) N/A 25.0
 
Jan. 22, 2021, 5 a.m. 24.7 ppb (24) 1.6 ppb (2) N/A 23.0 ppb (22) N/A N/A 12.0 ppb (12) 0.31 ppb (4) 40.7 μg/m3 (38) N/A 38.0
 
Jan. 22, 2021, 4 a.m. 28.6 ppb (27) 1.5 ppb (2) N/A 27.0 ppb (26) N/A N/A 14.0 ppb (13) 0.37 ppb (5) 35.7 μg/m3 (34) N/A 34.0
 
Jan. 22, 2021, 3 a.m. 26.3 ppb (25) 1.9 ppb (2) N/A 24.0 ppb (23) N/A N/A 19.0 ppb (18) 0.32 ppb (4) 33.1 μg/m3 (31) N/A 31.0
 
Jan. 22, 2021, 2 a.m. 19.5 ppb (19) 1.2 ppb (2) N/A 18.0 ppb (17) N/A N/A 26.0 ppb (25) 0.26 ppb (4) 24.6 μg/m3 (23) N/A 25.0
 
Jan. 22, 2021, 1 a.m. 15.3 ppb (15) 0.9 ppb (1) N/A 14.0 ppb (14) N/A N/A 31.0 ppb (29) 0.23 ppb (3) 26.0 μg/m3 (25) N/A 29.0
 
Jan. 22, 2021, midnight 11.6 ppb (11) 1.1 ppb (2) N/A 11.0 ppb (11) N/A N/A 38.0 ppb (36) 0.21 ppb (3) 26.2 μg/m3 (25) N/A 36.0
 
Jan. 21, 2021, 11 p.m. 9.5 ppb (9) 1.5 ppb (2) N/A 8.0 ppb (8) N/A N/A 43.0 ppb (40) 0.2 ppb (3) 20.2 μg/m3 (19) N/A 40.0
 
Jan. 21, 2021, 10 p.m. 7.3 ppb (7) 1.6 ppb (2) N/A 6.0 ppb (6) N/A N/A 43.0 ppb (40) 0.16 ppb (3) 23.8 μg/m3 (23) N/A 40.0
 
Jan. 21, 2021, 9 p.m. 7.9 ppb (8) 2.0 ppb (2) N/A 6.0 ppb (6) N/A N/A 41.0 ppb (38) 0.15 ppb (2) 27.4 μg/m3 (26) N/A 38.0
 
Jan. 21, 2021, 8 p.m. 10.7 ppb (11) 3.2 ppb (4) N/A 8.0 ppb (8) N/A N/A 37.0 ppb (35) 0.16 ppb (3) 20.9 μg/m3 (20) N/A 35.0
 
Jan. 21, 2021, 7 p.m. 19.5 ppb (19) 7.1 ppb (7) N/A 12.0 ppb (12) N/A N/A 29.0 ppb (27) 0.24 ppb (3) 20.9 μg/m3 (20) N/A 27.0
 
Jan. 21, 2021, 6 p.m. 18.7 ppb (18) 7.2 ppb (7) N/A 12.0 ppb (12) N/A N/A 28.0 ppb (26) 0.25 ppb (3) 42.4 μg/m3 (40) N/A 40.0
 
Jan. 21, 2021, 5 p.m. 18.5 ppb (18) 7.4 ppb (7) N/A 11.0 ppb (11) N/A N/A 22.0 ppb (21) 0.28 ppb (4) 28.1 μg/m3 (27) N/A 27.0
 
Jan. 21, 2021, 4 p.m. 47.3 ppb (45) 27.8 ppb (27) N/A 19.0 ppb (18) N/A N/A 9.0 ppb (9) 0.45 ppb (6) 67.7 μg/m3 (58) N/A 58.0
 
Jan. 21, 2021, 3 p.m. 48.5 ppb (46) 27.8 ppb (27) N/A 21.0 ppb (20) N/A N/A 5.0 ppb (5) 0.6 ppb (7) 42.4 μg/m3 (40) N/A 46.0
 
Jan. 21, 2021, 2 p.m. 40.6 ppb (39) 19.9 ppb (19) N/A 21.0 ppb (20) N/A N/A 4.0 ppb (4) 0.42 ppb (5) 32.3 μg/m3 (30) N/A 39.0
 
Jan. 21, 2021, 1 p.m. 35.9 ppb (34) 16.8 ppb (16) N/A 19.0 ppb (18) N/A N/A 3.0 ppb (3) 0.38 ppb (5) 34.0 μg/m3 (32) N/A 34.0
 
Jan. 21, 2021, noon 25.9 ppb (25) 8.1 ppb (8) N/A 18.0 ppb (17) N/A N/A 4.0 ppb (4) 0.35 ppb (4) 34.0 μg/m3 (32) N/A 32.0
 
Jan. 21, 2021, 11 a.m. 24.3 ppb (23) 5.6 ppb (6) N/A 19.0 ppb (18) N/A N/A 4.0 ppb (4) 0.31 ppb (4) 45.3 μg/m3 (42) N/A 42.0
 
Jan. 21, 2021, 10 a.m. 19.9 ppb (19) 2.9 ppb (3) N/A 17.0 ppb (17) N/A N/A 7.0 ppb (7) 0.34 ppb (4) 31.1 μg/m3 (29) N/A 29.0
 
Jan. 21, 2021, 9 a.m. 21.0 ppb (20) 3.2 ppb (4) N/A 18.0 ppb (17) N/A N/A 6.0 ppb (6) 0.27 ppb (4) 29.7 μg/m3 (28) N/A 28.0
 
Jan. 21, 2021, 8 a.m. 25.8 ppb (25) 5.4 ppb (6) N/A 20.0 ppb (19) N/A N/A 5.0 ppb (5) 0.29 ppb (4) 30.7 μg/m3 (29) N/A 29.0
 
Jan. 21, 2021, 7 a.m. 15.8 ppb (15) 1.5 ppb (2) N/A 14.0 ppb (14) N/A N/A 11.0 ppb (11) 0.23 ppb (3) 37.8 μg/m3 (35) N/A 35.0
 
Jan. 21, 2021, 6 a.m. 24.8 ppb (24) 3.6 ppb (4) N/A 21.0 ppb (20) N/A N/A 7.0 ppb (7) 0.28 ppb (4) 50.7 μg/m3 (47) N/A 47.0
 
Jan. 21, 2021, 5 a.m. 17.8 ppb (17) 1.7 ppb (2) N/A 16.0 ppb (16) N/A N/A 15.0 ppb (14) 0.29 ppb (4) 28.4 μg/m3 (27) N/A 27.0
 
Jan. 21, 2021, 4 a.m. 19.5 ppb (19) 1.2 ppb (2) N/A 18.0 ppb (17) N/A N/A 14.0 ppb (13) 0.29 ppb (4) 42.6 μg/m3 (40) N/A 40.0
 
Jan. 21, 2021, 3 a.m. 8.2 ppb (8) 0.8 ppb (1) N/A 7.0 ppb (7) N/A N/A 27.0 ppb (25) 0.2 ppb (3) 17.7 μg/m3 (17) N/A 25.0
 
Jan. 21, 2021, 2 a.m. 6.1 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 31.0 ppb (29) 0.16 ppb (3) 16.7 μg/m3 (16) N/A 29.0
 
Jan. 21, 2021, 1 a.m. 8.1 ppb (8) 0.6 ppb (1) N/A 7.0 ppb (7) N/A N/A 30.0 ppb (28) 0.19 ppb (3) 28.7 μg/m3 (27) N/A 28.0
 
Jan. 21, 2021, midnight 5.8 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 34.0 ppb (32) 0.16 ppb (3) 27.2 μg/m3 (26) N/A 32.0
 
Jan. 20, 2021, 11 p.m. 4.6 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (36) 0.13 ppb (2) 41.9 μg/m3 (39) N/A 39.0
 
Jan. 20, 2021, 10 p.m. 3.7 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (37) 0.14 ppb (2) 29.9 μg/m3 (28) N/A 37.0
 
Jan. 20, 2021, 9 p.m. 4.0 ppb (4) 1.1 ppb (2) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (37) 0.14 ppb (2) 36.3 μg/m3 (34) N/A 37.0
 
Jan. 20, 2021, 8 p.m. 5.1 ppb (5) 1.4 ppb (2) N/A 4.0 ppb (4) N/A N/A 40.0 ppb (38) 0.15 ppb (2) 28.2 μg/m3 (27) N/A 38.0
 
Jan. 20, 2021, 7 p.m. 10.2 ppb (10) 3.2 ppb (4) N/A 7.0 ppb (7) N/A N/A 35.0 ppb (33) 0.18 ppb (3) 21.1 μg/m3 (20) N/A 33.0
 
Jan. 20, 2021, 6 p.m. 20.4 ppb (20) 7.8 ppb (8) N/A 13.0 ppb (13) N/A N/A 27.0 ppb (25) 0.25 ppb (3) 33.3 μg/m3 (31) N/A 31.0
 
Jan. 20, 2021, 5 p.m. 22.3 ppb (22) 8.7 ppb (9) N/A 14.0 ppb (14) N/A N/A 24.0 ppb (23) 0.26 ppb (4) 34.3 μg/m3 (32) N/A 32.0
 
Jan. 20, 2021, 4 p.m. 59.7 ppb (58) 34.4 ppb (33) N/A 25.0 ppb (24) N/A N/A 8.0 ppb (8) 0.49 ppb (6) 84.5 μg/m3 (66) N/A 66.0
 
Jan. 20, 2021, 3 p.m. 56.5 ppb (54) 29.5 ppb (28) N/A 27.0 ppb (26) N/A N/A 5.0 ppb (5) 0.54 ppb (6) 87.2 μg/m3 (67) N/A 67.0
 
Jan. 20, 2021, 2 p.m. 34.0 ppb (33) 9.3 ppb (9) N/A 25.0 ppb (24) N/A N/A 5.0 ppb (5) 0.45 ppb (6) 33.3 μg/m3 (31) N/A 33.0
 
Jan. 20, 2021, 1 p.m. 30.5 ppb (29) 6.9 ppb (7) N/A 24.0 ppb (23) N/A N/A 6.0 ppb (6) 0.38 ppb (5) 38.2 μg/m3 (36) N/A 36.0
 
Jan. 20, 2021, noon 20.4 ppb (20) 2.0 ppb (2) N/A 18.0 ppb (17) N/A N/A 11.0 ppb (11) 0.29 ppb (4) 24.5 μg/m3 (23) N/A 23.0
 
Jan. 20, 2021, 11 a.m. 13.6 ppb (13) 0.8 ppb (1) N/A 13.0 ppb (13) N/A N/A 17.0 ppb (16) 0.23 ppb (3) 22.6 μg/m3 (21) N/A 21.0
 
Jan. 20, 2021, 10 a.m. 16.0 ppb (16) 0.8 ppb (1) N/A 15.0 ppb (15) N/A N/A 16.0 ppb (15) 0.21 ppb (3) 36.7 μg/m3 (34) N/A 34.0
 
Jan. 20, 2021, 9 a.m. 16.9 ppb (16) 1.1 ppb (2) N/A 16.0 ppb (16) N/A N/A 17.0 ppb (16) 0.23 ppb (3) 28.6 μg/m3 (27) N/A 27.0
 
Jan. 20, 2021, 8 a.m. 11.5 ppb (11) 0.9 ppb (1) N/A 11.0 ppb (11) N/A N/A 24.0 ppb (23) 0.22 ppb (3) 21.8 μg/m3 (21) N/A 23.0
 
Jan. 20, 2021, 7 a.m. 14.9 ppb (15) 0.5 ppb (1) N/A 14.0 ppb (14) N/A N/A 23.0 ppb (22) 0.21 ppb (3) 25.5 μg/m3 (24) N/A 24.0
 
Jan. 20, 2021, 6 a.m. 1.9 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (37) 0.12 ppb (2) 18.7 μg/m3 (18) N/A 37.0
 
Jan. 20, 2021, 5 a.m. 3.8 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (35) 0.14 ppb (2) 10.9 μg/m3 (11) N/A 35.0
 
Jan. 20, 2021, 4 a.m. 2.5 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (37) 0.13 ppb (2) 8.4 μg/m3 (8) N/A 37.0
 
Jan. 20, 2021, 3 a.m. 1.4 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (38) 0.13 ppb (2) 11.1 μg/m3 (11) N/A 38.0
 
Jan. 20, 2021, 2 a.m. 1.9 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) 0.15 ppb (2) 14.7 μg/m3 (14) N/A 38.0
 
Jan. 20, 2021, 1 a.m. 2.4 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) 0.15 ppb (2) 21.6 μg/m3 (20) N/A 38.0
 
Jan. 20, 2021, midnight 2.0 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) 0.16 ppb (3) 25.1 μg/m3 (24) N/A 38.0
 
Jan. 19, 2021, 11 p.m. 2.5 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) 0.16 ppb (3) 16.2 μg/m3 (15) N/A 38.0
 
Jan. 19, 2021, 10 p.m. 2.1 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) 0.15 ppb (2) 15.9 μg/m3 (15) N/A 38.0
 
Jan. 19, 2021, 9 p.m. 2.4 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) 0.15 ppb (2) 25.7 μg/m3 (24) N/A 38.0
 
Jan. 19, 2021, 8 p.m. 2.1 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A N/A 39.0 ppb (37) 0.16 ppb (3) 48.3 μg/m3 (45) N/A 45.0
 
Jan. 19, 2021, 7 p.m. 1.5 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (38) 0.14 ppb (2) 50.9 μg/m3 (48) N/A 48.0
 
Jan. 19, 2021, 6 p.m. 1.5 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (38) 0.13 ppb (2) 79.6 μg/m3 (64) N/A 64.0
 
Jan. 19, 2021, 5 p.m. 1.4 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (38) 0.13 ppb (2) 92.0 μg/m3 (70) N/A 70.0
 
Jan. 19, 2021, 4 p.m. 2.0 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (38) 0.12 ppb (2) 87.0 μg/m3 (67) N/A 67.0
 
Jan. 19, 2021, 3 p.m. 1.7 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) 0.11 ppb (2) 86.2 μg/m3 (67) N/A 67.0
 
Jan. 19, 2021, 2 p.m. 1.8 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (39) 0.11 ppb (2) 38.4 μg/m3 (36) N/A 39.0
 
Jan. 19, 2021, 1 p.m. 4.9 ppb (5) 0.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 37.0 ppb (35) 0.14 ppb (2) 40.4 μg/m3 (38) N/A 38.0
 
Jan. 19, 2021, noon 34.5 ppb (33) 9.7 ppb (10) N/A 25.0 ppb (24) N/A N/A 8.0 ppb (8) 0.28 ppb (4) 35.5 μg/m3 (33) N/A 33.0
 
Jan. 19, 2021, 11 a.m. 34.7 ppb (33) 7.9 ppb (8) N/A 27.0 ppb (26) N/A N/A 5.0 ppb (5) 0.45 ppb (6) 33.1 μg/m3 (31) N/A 33.0
 
Jan. 19, 2021, 10 a.m. 40.1 ppb (38) 12.5 ppb (12) N/A 28.0 ppb (27) N/A N/A 3.0 ppb (3) 0.45 ppb (6) 44.8 μg/m3 (42) N/A 42.0
 
Jan. 19, 2021, 9 a.m. 42.8 ppb (41) 15.4 ppb (15) N/A 27.0 ppb (26) N/A N/A 3.0 ppb (3) 0.53 ppb (6) 46.5 μg/m3 (44) N/A 44.0
 
Jan. 19, 2021, 8 a.m. 50.4 ppb (48) 23.9 ppb (23) N/A 26.0 ppb (25) N/A N/A 4.0 ppb (4) 0.51 ppb (6) 53.8 μg/m3 (50) N/A 50.0
 
Jan. 19, 2021, 7 a.m. 39.2 ppb (37) 12.4 ppb (12) N/A 27.0 ppb (26) N/A N/A 4.0 ppb (4) 0.51 ppb (6) 48.8 μg/m3 (46) N/A 46.0
 
Jan. 19, 2021, 6 a.m. 29.7 ppb (29) 4.4 ppb (5) N/A 25.0 ppb (24) N/A N/A 6.0 ppb (6) 0.4 ppb (5) 70.1 μg/m3 (59) N/A 59.0
 
Jan. 19, 2021, 5 a.m. 21.4 ppb (21) 1.1 ppb (2) N/A 20.0 ppb (19) N/A N/A 15.0 ppb (14) 0.26 ppb (4) 15.2 μg/m3 (15) N/A 21.0
 
Jan. 19, 2021, 4 a.m. 10.5 ppb (10) 0.4 ppb (1) N/A 10.0 ppb (10) N/A N/A 31.0 ppb (29) 0.22 ppb (3) 14.7 μg/m3 (14) N/A 29.0
 
Jan. 19, 2021, 3 a.m. 8.2 ppb (8) 0.3 ppb (1) N/A 8.0 ppb (8) N/A N/A 36.0 ppb (34) 0.17 ppb (3) 10.7 μg/m3 (10) N/A 34.0
 
Jan. 19, 2021, 2 a.m. 11.6 ppb (11) 0.6 ppb (1) N/A 11.0 ppb (11) N/A N/A 32.0 ppb (30) 0.23 ppb (3) 17.7 μg/m3 (17) N/A 30.0
 
Jan. 19, 2021, 1 a.m. 11.1 ppb (11) 1.0 ppb (1) N/A 10.0 ppb (10) N/A N/A 33.0 ppb (31) 0.24 ppb (3) 19.2 μg/m3 (18) N/A 31.0
 
Jan. 19, 2021, midnight 3.7 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (38) 0.15 ppb (2) 12.3 μg/m3 (12) N/A 38.0
 
Jan. 18, 2021, 11 p.m. 2.7 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (39) 0.15 ppb (2) 10.9 μg/m3 (11) N/A 39.0
 
Jan. 18, 2021, 10 p.m. 2.8 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (39) 0.14 ppb (2) 10.4 μg/m3 (10) N/A 39.0
 
Jan. 18, 2021, 9 p.m. 1.8 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) 0.14 ppb (2) 10.2 μg/m3 (10) N/A 39.0
 
Jan. 18, 2021, 8 p.m. 1.9 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (38) 0.14 ppb (2) 14.0 μg/m3 (13) N/A 38.0
 
Jan. 18, 2021, 7 p.m. 1.6 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (38) 0.13 ppb (2) 24.1 μg/m3 (23) N/A 38.0
 
Jan. 18, 2021, 6 p.m. 3.5 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (37) 0.14 ppb (2) 22.3 μg/m3 (21) N/A 37.0
 
Jan. 18, 2021, 5 p.m. 22.5 ppb (22) 8.8 ppb (9) N/A 14.0 ppb (14) N/A N/A 29.0 ppb (27) 0.32 ppb (4) 47.0 μg/m3 (44) N/A 44.0
 
Jan. 18, 2021, 4 p.m. 35.7 ppb (34) 14.5 ppb (14) N/A 21.0 ppb (20) N/A N/A 14.0 ppb (13) 0.43 ppb (5) 49.5 μg/m3 (46) N/A 46.0
 
Jan. 18, 2021, 3 p.m. 49.1 ppb (47) 24.5 ppb (24) N/A 25.0 ppb (24) N/A N/A 5.0 ppb (5) 0.63 ppb (7) 66.7 μg/m3 (57) N/A 57.0
 
Jan. 18, 2021, 2 p.m. 45.8 ppb (44) 22.0 ppb (21) N/A 24.0 ppb (23) N/A N/A 3.0 ppb (3) 0.71 ppb (8) 37.5 μg/m3 (35) N/A 44.0
 
Jan. 18, 2021, 1 p.m. 36.1 ppb (35) 12.3 ppb (12) N/A 24.0 ppb (23) N/A N/A 4.0 ppb (4) 0.62 ppb (7) 18.9 μg/m3 (18) N/A 35.0
 
Jan. 18, 2021, noon 36.2 ppb (35) 13.7 ppb (13) N/A 22.0 ppb (21) N/A N/A 4.0 ppb (4) 0.64 ppb (7) 16.4 μg/m3 (16) N/A 35.0
 
Jan. 18, 2021, 11 a.m. 34.7 ppb (33) 12.6 ppb (12) N/A 22.0 ppb (21) N/A N/A 3.0 ppb (3) 0.68 ppb (8) 30.4 μg/m3 (29) N/A 33.0
 
Jan. 18, 2021, 10 a.m. 38.3 ppb (37) 15.1 ppb (15) N/A 23.0 ppb (22) N/A N/A 4.0 ppb (4) 0.76 ppb (10) 21.6 μg/m3 (20) N/A 37.0
 
Jan. 18, 2021, 9 a.m. 39.1 ppb (37) 14.8 ppb (14) N/A 24.0 ppb (23) N/A N/A 4.0 ppb (4) 0.82 ppb (10) 33.3 μg/m3 (31) N/A 37.0
 
Jan. 18, 2021, 8 a.m. 43.4 ppb (41) 17.8 ppb (17) N/A 26.0 ppb (25) N/A N/A 4.0 ppb (4) 0.83 ppb (10) 39.4 μg/m3 (37) N/A 41.0
 
Jan. 18, 2021, 7 a.m. 51.0 ppb (49) 24.1 ppb (23) N/A 27.0 ppb (26) N/A N/A 4.0 ppb (4) 0.94 ppb (11) 42.4 μg/m3 (40) N/A 49.0
 
Jan. 18, 2021, 6 a.m. 30.4 ppb (29) 5.0 ppb (5) N/A 25.0 ppb (24) N/A N/A 7.0 ppb (7) 0.69 ppb (8) 33.3 μg/m3 (31) N/A 31.0
 
Jan. 18, 2021, 5 a.m. 27.4 ppb (26) 2.7 ppb (3) N/A 25.0 ppb (24) N/A N/A 10.0 ppb (10) 0.58 ppb (7) 38.7 μg/m3 (36) N/A 36.0
 
Jan. 18, 2021, 4 a.m. 26.6 ppb (26) 2.8 ppb (3) N/A 24.0 ppb (23) N/A N/A 11.0 ppb (11) 0.67 ppb (8) 41.2 μg/m3 (39) N/A 39.0
 
Jan. 18, 2021, 3 a.m. 25.1 ppb (24) 1.5 ppb (2) N/A 24.0 ppb (23) N/A N/A 14.0 ppb (13) 0.52 ppb (6) 49.3 μg/m3 (46) N/A 46.0
 
Jan. 18, 2021, 2 a.m. 24.3 ppb (23) 3.6 ppb (4) N/A 21.0 ppb (20) N/A N/A 22.0 ppb (21) 0.45 ppb (6) 36.8 μg/m3 (35) N/A 35.0
 
Jan. 18, 2021, 1 a.m. 15.1 ppb (15) 0.6 ppb (1) N/A 15.0 ppb (15) N/A N/A 30.0 ppb (28) 0.33 ppb (4) 30.4 μg/m3 (29) N/A 29.0
 
Jan. 18, 2021, midnight 5.9 ppb (6) 0.5 ppb (1) N/A 5.0 ppb (5) N/A N/A 42.0 ppb (39) 0.19 ppb (3) 17.5 μg/m3 (17) N/A 39.0
 
Jan. 17, 2021, 11 p.m. 4.0 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 45.0 ppb (42) 0.17 ppb (3) 20.7 μg/m3 (20) N/A 42.0
 
Jan. 17, 2021, 10 p.m. 2.6 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (45) 0.15 ppb (2) 8.9 μg/m3 (9) N/A 45.0
 
Jan. 17, 2021, 9 p.m. 3.2 ppb (4) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 50.0 ppb (47) 0.17 ppb (3) 5.5 μg/m3 (6) N/A 47.0
 
Jan. 17, 2021, 8 p.m. 2.0 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 50.0 ppb (47) 0.15 ppb (2) 6.7 μg/m3 (7) N/A 47.0
 
Jan. 17, 2021, 7 p.m. 3.6 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 47.0 ppb (44) 0.17 ppb (3) 9.2 μg/m3 (9) N/A 44.0
 
Jan. 17, 2021, 6 p.m. 7.0 ppb (7) 1.8 ppb (2) N/A 5.0 ppb (5) N/A N/A 39.0 ppb (37) 0.21 ppb (3) 11.1 μg/m3 (11) N/A 37.0
 
Jan. 17, 2021, 5 p.m. 10.7 ppb (11) 3.1 ppb (3) N/A 8.0 ppb (8) N/A N/A 30.0 ppb (28) 0.26 ppb (4) 10.1 μg/m3 (10) N/A 28.0
 
Jan. 17, 2021, 4 p.m. 17.0 ppb (17) 5.1 ppb (5) N/A 12.0 ppb (12) N/A N/A 21.0 ppb (20) 0.36 ppb (5) 25.3 μg/m3 (24) N/A 24.0
 
Jan. 17, 2021, 3 p.m. 20.7 ppb (20) 4.7 ppb (5) N/A 16.0 ppb (16) N/A N/A 11.0 ppb (11) 0.39 ppb (5) 24.8 μg/m3 (23) N/A 23.0
 
Jan. 17, 2021, 2 p.m. 15.6 ppb (15) 1.2 ppb (2) N/A 14.0 ppb (14) N/A N/A 12.0 ppb (12) 0.32 ppb (4) 22.3 μg/m3 (21) N/A 21.0
 
Jan. 17, 2021, 1 p.m. 11.4 ppb (11) 0.9 ppb (1) N/A 10.0 ppb (10) N/A N/A 17.0 ppb (16) 0.25 ppb (3) 14.9 μg/m3 (14) N/A 16.0
 
Jan. 17, 2021, noon 8.7 ppb (9) 0.8 ppb (1) N/A 8.0 ppb (8) N/A N/A 21.0 ppb (20) 0.23 ppb (3) 11.8 μg/m3 (11) N/A 20.0
 
Jan. 17, 2021, 11 a.m. 11.6 ppb (11) 1.0 ppb (1) N/A 11.0 ppb (11) N/A N/A 17.0 ppb (16) 0.32 ppb (4) 19.4 μg/m3 (18) N/A 18.0
 
Jan. 17, 2021, 10 a.m. 11.9 ppb (12) 1.1 ppb (2) N/A 11.0 ppb (11) N/A N/A 18.0 ppb (17) 0.31 ppb (4) 17.7 μg/m3 (17) N/A 17.0
 
Jan. 17, 2021, 9 a.m. 18.7 ppb (18) 1.5 ppb (2) N/A 17.0 ppb (17) N/A N/A 10.0 ppb (10) 0.45 ppb (6) 20.9 μg/m3 (20) N/A 20.0
 
Jan. 17, 2021, 8 a.m. 23.1 ppb (22) 3.1 ppb (3) N/A 20.0 ppb (19) N/A N/A 8.0 ppb (8) 0.49 ppb (6) 33.1 μg/m3 (31) N/A 31.0
 
Jan. 17, 2021, 7 a.m. 13.1 ppb (13) 0.9 ppb (1) N/A 12.0 ppb (12) N/A N/A 18.0 ppb (17) 0.34 ppb (4) 24.0 μg/m3 (23) N/A 23.0
 
Jan. 17, 2021, 6 a.m. 15.2 ppb (15) 1.0 ppb (1) N/A 14.0 ppb (14) N/A N/A 15.0 ppb (14) 0.33 ppb (4) 33.8 μg/m3 (32) N/A 32.0
 
Jan. 17, 2021, 5 a.m. 15.3 ppb (15) 0.8 ppb (1) N/A 14.0 ppb (14) N/A N/A 18.0 ppb (17) 0.33 ppb (4) 38.7 μg/m3 (36) N/A 36.0
 
Jan. 17, 2021, 4 a.m. 16.2 ppb (16) 1.0 ppb (1) N/A 15.0 ppb (15) N/A N/A 19.0 ppb (18) 0.32 ppb (4) 21.9 μg/m3 (21) N/A 21.0
 
Jan. 17, 2021, 3 a.m. 8.9 ppb (9) 0.5 ppb (1) N/A 8.0 ppb (8) N/A N/A 31.0 ppb (29) 0.23 ppb (3) 14.9 μg/m3 (14) N/A 29.0
 
Jan. 17, 2021, 2 a.m. 4.8 ppb (5) 0.3 ppb (1) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (35) 0.17 ppb (3) 9.9 μg/m3 (10) N/A 35.0
 
Jan. 17, 2021, 1 a.m. 2.6 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) 0.12 ppb (2) 21.2 μg/m3 (20) N/A 38.0
 
Jan. 17, 2021, midnight 2.0 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (38) 0.12 ppb (2) 18.2 μg/m3 (17) N/A 38.0
 
Jan. 16, 2021, 11 p.m. 1.9 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) 0.12 ppb (2) 14.9 μg/m3 (14) N/A 39.0
 
Jan. 16, 2021, 10 p.m. 1.7 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) 0.12 ppb (2) 25.5 μg/m3 (24) N/A 39.0
 
Jan. 16, 2021, 9 p.m. 2.0 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) 0.13 ppb (2) 26.0 μg/m3 (25) N/A 39.0
 
Jan. 16, 2021, 8 p.m. 3.2 ppb (4) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (39) 0.14 ppb (2) 51.4 μg/m3 (48) N/A 48.0
 
Jan. 16, 2021, 7 p.m. 4.1 ppb (4) 1.1 ppb (2) N/A 3.0 ppb (3) N/A N/A 41.0 ppb (38) 0.15 ppb (2) 77.9 μg/m3 (63) N/A 63.0
 
Jan. 16, 2021, 6 p.m. 15.4 ppb (15) 5.0 ppb (5) N/A 10.0 ppb (10) N/A N/A 33.0 ppb (31) 0.25 ppb (3) 25.9 μg/m3 (24) N/A 31.0
 
Jan. 16, 2021, 5 p.m. 18.7 ppb (18) 6.0 ppb (6) N/A 13.0 ppb (13) N/A N/A 26.0 ppb (25) 0.31 ppb (4) 30.7 μg/m3 (29) N/A 29.0
 
Jan. 16, 2021, 4 p.m. 20.3 ppb (20) 5.9 ppb (6) N/A 14.0 ppb (14) N/A N/A 20.0 ppb (19) 0.32 ppb (4) 116.0 μg/m3 (82) N/A 82.0
 
Jan. 16, 2021, 3 p.m. 24.6 ppb (24) 5.5 ppb (6) N/A 19.0 ppb (18) N/A N/A 11.0 ppb (11) 0.35 ppb (4) 33.1 μg/m3 (31) N/A 31.0
 
Jan. 16, 2021, 2 p.m. 29.7 ppb (29) 7.4 ppb (7) N/A 22.0 ppb (21) N/A N/A 4.0 ppb (4) 0.46 ppb (6) 28.4 μg/m3 (27) N/A 29.0
 
Jan. 16, 2021, 1 p.m. 30.1 ppb (29) 7.5 ppb (8) N/A 23.0 ppb (22) N/A N/A 4.0 ppb (4) 0.51 ppb (6) 22.3 μg/m3 (21) N/A 29.0
 
Jan. 16, 2021, noon 30.8 ppb (30) 9.3 ppb (9) N/A 21.0 ppb (20) N/A N/A 4.0 ppb (4) 0.57 ppb (7) 21.6 μg/m3 (20) N/A 30.0
 
Jan. 16, 2021, 11 a.m. 39.7 ppb (38) 16.8 ppb (16) N/A 23.0 ppb (22) N/A N/A 3.0 ppb (3) 0.7 ppb (8) 24.3 μg/m3 (23) N/A 38.0
 
Jan. 16, 2021, 10 a.m. 43.0 ppb (41) 19.4 ppb (19) N/A 24.0 ppb (23) N/A N/A 4.0 ppb (4) 0.82 ppb (10) 19.2 μg/m3 (18) N/A 41.0
 
Jan. 16, 2021, 9 a.m. 43.3 ppb (41) 18.0 ppb (17) N/A 25.0 ppb (24) N/A N/A 3.0 ppb (3) 0.81 ppb (10) 29.2 μg/m3 (28) N/A 41.0
 
Jan. 16, 2021, 8 a.m. 52.1 ppb (50) 25.6 ppb (25) N/A 27.0 ppb (26) N/A N/A 4.0 ppb (4) 0.98 ppb (12) 36.5 μg/m3 (34) N/A 50.0
 
Jan. 16, 2021, 7 a.m. 65.5 ppb (64) 36.4 ppb (35) N/A 29.0 ppb (28) N/A N/A 4.0 ppb (4) 1.11 ppb (13) 45.3 μg/m3 (42) N/A 64.0
 
Jan. 16, 2021, 6 a.m. 72.0 ppb (71) 42.8 ppb (41) N/A 29.0 ppb (28) N/A N/A 4.0 ppb (4) 1.19 ppb (14) 57.5 μg/m3 (53) N/A 71.0
 
Jan. 16, 2021, 5 a.m. 61.9 ppb (60) 31.4 ppb (30) N/A 31.0 ppb (30) N/A N/A 4.0 ppb (4) 1.01 ppb (12) 59.7 μg/m3 (54) N/A 60.0
 
Jan. 16, 2021, 4 a.m. 39.4 ppb (38) 10.5 ppb (10) N/A 29.0 ppb (28) N/A N/A 7.0 ppb (7) 0.66 ppb (8) 58.2 μg/m3 (53) N/A 53.0
 
Jan. 16, 2021, 3 a.m. 27.9 ppb (27) 2.2 ppb (3) N/A 26.0 ppb (25) N/A N/A 12.0 ppb (12) 0.39 ppb (5) 55.8 μg/m3 (52) N/A 52.0
 
Jan. 16, 2021, 2 a.m. 28.2 ppb (27) 1.6 ppb (2) N/A 27.0 ppb (26) N/A N/A 14.0 ppb (13) 0.4 ppb (5) 54.3 μg/m3 (51) N/A 51.0
 
Jan. 16, 2021, 1 a.m. 24.0 ppb (23) 1.1 ppb (2) N/A 23.0 ppb (22) N/A N/A 23.0 ppb (22) 0.35 ppb (4) 32.1 μg/m3 (30) N/A 30.0
 
Jan. 16, 2021, midnight 17.8 ppb (17) 1.5 ppb (2) N/A 16.0 ppb (16) N/A N/A 32.0 ppb (30) 0.31 ppb (4) 26.2 μg/m3 (25) N/A 30.0
 
Jan. 15, 2021, 11 p.m. 8.3 ppb (8) 1.3 ppb (2) N/A 7.0 ppb (7) N/A N/A 44.0 ppb (41) 0.2 ppb (3) 14.7 μg/m3 (14) N/A 41.0
 
Jan. 15, 2021, 10 p.m. 4.5 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 48.0 ppb (45) 0.14 ppb (2) 13.7 μg/m3 (13) N/A 45.0
 
Jan. 15, 2021, 9 p.m. 5.9 ppb (6) 1.5 ppb (2) N/A 4.0 ppb (4) N/A N/A 49.0 ppb (46) 0.15 ppb (2) 13.7 μg/m3 (13) N/A 46.0
 
Jan. 15, 2021, 8 p.m. 11.0 ppb (11) 2.7 ppb (3) N/A 8.0 ppb (8) N/A N/A 42.0 ppb (39) 0.19 ppb (3) 22.6 μg/m3 (21) N/A 39.0