ID: 150

AQSQID: 060371201

Site Name: Reseda

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

Updated: Oct. 20, 2021, 1:04 a.m.

Location: Reseda (Reseda), CA

Reporting: True, Located: True

Current AQI: 46.0

Reseda (Reseda) CA, US: 34.1992, -118.5331

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Oct. 19, 2021, 11 p.m. 7.5 ppb (8) 0.7 ppb (1) N/A 7.0 ppb (7) N/A N/A 49.0 ppb (46) 0.28 ppb (4) N/A 6.9 μg/m3 (29) 46.0
 
Oct. 19, 2021, 10 p.m. 6.8 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 49.0 ppb (46) 0.27 ppb (4) N/A 8.1 μg/m3 (34) 46.0
 
Oct. 19, 2021, 9 p.m. 5.8 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 49.0 ppb (46) 0.26 ppb (4) N/A 17.2 μg/m3 (62) 62.0
 
Oct. 19, 2021, 8 p.m. 5.4 ppb (6) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 47.0 ppb (44) 0.26 ppb (4) N/A 0.9 μg/m3 (4) 44.0
 
Oct. 19, 2021, 7 p.m. 4.6 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 45.0 ppb (42) 0.24 ppb (3) N/A 9.6 μg/m3 (40) 42.0
 
Oct. 19, 2021, 6 p.m. 5.9 ppb (6) 1.4 ppb (2) N/A 5.0 ppb (5) N/A N/A 40.0 ppb (38) 0.25 ppb (3) N/A 10.3 μg/m3 (43) 43.0
 
Oct. 19, 2021, 5 p.m. 9.1 ppb (9) 2.7 ppb (3) N/A 6.0 ppb (6) N/A N/A 34.0 ppb (32) 0.28 ppb (4) N/A 12.4 μg/m3 (52) 52.0
 
Oct. 19, 2021, 4 p.m. 20.5 ppb (20) 7.7 ppb (8) N/A 13.0 ppb (13) N/A N/A 21.0 ppb (20) 0.39 ppb (5) N/A 8.6 μg/m3 (36) 36.0
 
Oct. 19, 2021, 3 p.m. 42.1 ppb (40) 24.7 ppb (24) N/A 17.0 ppb (17) N/A N/A 7.0 ppb (7) 0.71 ppb (8) N/A 6.8 μg/m3 (29) 40.0
 
Oct. 19, 2021, 2 p.m. 53.8 ppb (51) 39.3 ppb (38) N/A 15.0 ppb (15) N/A N/A 1.0 ppb (1) 1.07 ppb (13) N/A 8.1 μg/m3 (34) 51.0
 
Oct. 19, 2021, 1 p.m. 47.8 ppb (46) 34.7 ppb (33) N/A 13.0 ppb (13) N/A N/A 1.0 ppb (1) 0.93 ppb (11) N/A 3.9 μg/m3 (17) 46.0
 
Oct. 19, 2021, noon 35.2 ppb (34) 20.3 ppb (20) N/A 15.0 ppb (15) N/A N/A 1.0 ppb (1) 0.56 ppb (7) N/A 3.4 μg/m3 (15) 34.0
 
Oct. 19, 2021, 11 a.m. 20.7 ppb (20) 3.4 ppb (4) N/A 17.0 ppb (17) N/A N/A 2.0 ppb (2) 0.42 ppb (5) N/A 3.4 μg/m3 (15) 20.0
 
Oct. 19, 2021, 10 a.m. 17.0 ppb (17) 3.2 ppb (4) N/A 14.0 ppb (14) N/A N/A 1.0 ppb (1) 0.43 ppb (5) N/A 4.2 μg/m3 (18) 18.0
 
Oct. 19, 2021, 9 a.m. 19.5 ppb (19) 1.6 ppb (2) N/A 18.0 ppb (17) N/A N/A 2.0 ppb (2) 0.51 ppb (6) N/A 8.1 μg/m3 (34) 34.0
 
Oct. 19, 2021, 8 a.m. 17.4 ppb (17) 0.8 ppb (1) N/A 17.0 ppb (17) N/A N/A 4.0 ppb (4) 0.53 ppb (6) N/A 8.8 μg/m3 (37) 37.0
 
Oct. 19, 2021, 7 a.m. 12.9 ppb (13) 0.2 ppb (1) N/A 13.0 ppb (13) N/A N/A 10.0 ppb (10) 0.36 ppb (5) N/A 6.2 μg/m3 (26) 26.0
 
Oct. 19, 2021, 6 a.m. 12.1 ppb (12) 0.4 ppb (1) N/A 12.0 ppb (12) N/A N/A 13.0 ppb (13) 0.33 ppb (4) N/A 6.4 μg/m3 (27) 27.0
 
Oct. 19, 2021, 5 a.m. 10.1 ppb (10) 0.4 ppb (1) N/A 10.0 ppb (10) N/A N/A 21.0 ppb (20) 0.37 ppb (5) N/A 6.1 μg/m3 (26) 26.0
 
Oct. 19, 2021, 4 a.m. 7.8 ppb (8) 0.2 ppb (1) N/A 8.0 ppb (8) N/A N/A 25.0 ppb (24) 0.28 ppb (4) N/A 6.4 μg/m3 (27) 27.0
 
Oct. 19, 2021, 3 a.m. 4.7 ppb (5) 0.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 30.0 ppb (28) 0.23 ppb (3) N/A 5.6 μg/m3 (24) 28.0
 
Oct. 19, 2021, 2 a.m. 6.3 ppb (6) 0.2 ppb (1) N/A 6.0 ppb (6) N/A N/A 31.0 ppb (29) 0.24 ppb (3) N/A 1.9 μg/m3 (8) 29.0
 
Oct. 19, 2021, 1 a.m. 5.0 ppb (5) 0.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 34.0 ppb (32) 0.22 ppb (3) N/A 0.4 μg/m3 (2) 32.0
 
Oct. 19, 2021, midnight 3.6 ppb (4) 0.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (34) 0.22 ppb (3) N/A 1.4 μg/m3 (6) 34.0
 
Oct. 18, 2021, 11 p.m. 5.1 ppb (5) 0.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 36.0 ppb (34) 0.2 ppb (3) N/A 2.4 μg/m3 (10) 34.0
 
Oct. 18, 2021, 10 p.m. 1.3 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (38) 0.18 ppb (3) N/A 2.1 μg/m3 (9) 38.0
 
Oct. 18, 2021, 9 p.m. 0.4 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (38) 0.17 ppb (3) N/A 3.9 μg/m3 (17) 38.0
 
Oct. 18, 2021, 8 p.m. 1.5 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) 0.19 ppb (3) N/A 4.9 μg/m3 (21) 39.0
 
Oct. 18, 2021, 7 p.m. 3.3 ppb (4) 1.1 ppb (2) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (39) 0.18 ppb (3) N/A 4.9 μg/m3 (21) 39.0
 
Oct. 18, 2021, 6 p.m. 4.1 ppb (4) 1.4 ppb (2) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (37) 0.24 ppb (3) N/A 7.3 μg/m3 (31) 37.0
 
Oct. 18, 2021, 5 p.m. 4.8 ppb (5) 1.6 ppb (2) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (35) 0.21 ppb (3) N/A 9.3 μg/m3 (39) 39.0
 
Oct. 18, 2021, 4 p.m. 7.2 ppb (7) 1.5 ppb (2) N/A 6.0 ppb (6) N/A N/A 28.0 ppb (26) 0.25 ppb (3) N/A 11.2 μg/m3 (47) 47.0
 
Oct. 18, 2021, 3 p.m. 14.7 ppb (14) 1.5 ppb (2) N/A 13.0 ppb (13) N/A N/A 16.0 ppb (15) 0.34 ppb (4) N/A 10.2 μg/m3 (43) 43.0
 
Oct. 18, 2021, 2 p.m. 15.5 ppb (15) 1.3 ppb (2) N/A 14.0 ppb (14) N/A N/A 15.0 ppb (14) 0.37 ppb (5) N/A 9.7 μg/m3 (41) 41.0
 
Oct. 18, 2021, 1 p.m. 11.9 ppb (12) 1.1 ppb (2) N/A 11.0 ppb (11) N/A N/A 19.0 ppb (18) 0.3 ppb (4) N/A 6.8 μg/m3 (29) 29.0
 
Oct. 18, 2021, noon 4.5 ppb (5) 0.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (27) 0.23 ppb (3) N/A 4.8 μg/m3 (20) 27.0
 
Oct. 18, 2021, 11 a.m. 1.9 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 29.0 ppb (27) 0.2 ppb (3) N/A 5.8 μg/m3 (25) 27.0
 
Oct. 18, 2021, 10 a.m. 1.1 ppb (2) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 31.0 ppb (29) 0.19 ppb (3) N/A 4.8 μg/m3 (20) 29.0
 
Oct. 18, 2021, 9 a.m. 1.3 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (28) 0.19 ppb (3) N/A 6.2 μg/m3 (26) 28.0
 
Oct. 18, 2021, 8 a.m. 5.5 ppb (6) -0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 24.0 ppb (23) 0.26 ppb (4) N/A 6.7 μg/m3 (28) 28.0
 
Oct. 18, 2021, 7 a.m. 2.4 ppb (3) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 31.0 ppb (29) 0.21 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Oct. 18, 2021, 6 a.m. 1.3 ppb (2) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 34.0 ppb (32) 0.2 ppb (3) N/A 12.4 μg/m3 (52) 52.0
 
Oct. 18, 2021, 5 a.m. 2.4 ppb (3) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (34) 0.22 ppb (3) N/A 12.1 μg/m3 (51) 51.0
 
Oct. 18, 2021, 4 a.m. 6.1 ppb (6) -0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 32.0 ppb (30) 0.29 ppb (4) N/A 8.5 μg/m3 (36) 36.0
 
Oct. 18, 2021, 3 a.m. 4.8 ppb (5) -0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 40.0 ppb (38) 0.27 ppb (4) N/A 7.1 μg/m3 (30) 38.0
 
Oct. 18, 2021, 2 a.m. 3.3 ppb (4) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 46.0 ppb (43) 0.26 ppb (4) N/A 10.5 μg/m3 (44) 44.0
 
Oct. 18, 2021, 1 a.m. 2.4 ppb (3) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 53.0 ppb (50) 0.24 ppb (3) N/A 6.7 μg/m3 (28) 50.0
 
Oct. 18, 2021, midnight 1.5 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 57.0 ppb (58) 0.2 ppb (3) N/A 5.2 μg/m3 (22) 58.0
 
Oct. 17, 2021, 11 p.m. 0.2 ppb (1) -0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 60.0 ppb (68) 0.19 ppb (3) N/A 3.9 μg/m3 (17) 68.0
 
Oct. 17, 2021, 10 p.m. 0.0 ppb (0) -0.3 ppb (0) N/A 0.0 ppb (0) N/A N/A 60.0 ppb (68) 0.19 ppb (3) N/A 1.4 μg/m3 (6) 68.0
 
Oct. 17, 2021, 9 p.m. 0.4 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 61.0 ppb (71) 0.19 ppb (3) N/A 3.2 μg/m3 (14) 71.0
 
Oct. 17, 2021, 8 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 63.0 ppb (78) 0.22 ppb (3) N/A 4.7 μg/m3 (20) 78.0
 
Oct. 17, 2021, 7 p.m. 7.9 ppb (8) 1.0 ppb (1) N/A 7.0 ppb (7) N/A N/A 58.0 ppb (61) 0.3 ppb (4) N/A 3.7 μg/m3 (16) 61.0
 
Oct. 17, 2021, 6 p.m. 11.4 ppb (11) 1.9 ppb (2) N/A 10.0 ppb (10) N/A N/A 49.0 ppb (46) 0.34 ppb (4) N/A 5.2 μg/m3 (22) 46.0
 
Oct. 17, 2021, 5 p.m. 15.3 ppb (15) 2.9 ppb (3) N/A 12.0 ppb (12) N/A N/A 41.0 ppb (38) 0.4 ppb (5) N/A 6.4 μg/m3 (27) 38.0
 
Oct. 17, 2021, 4 p.m. 20.8 ppb (20) 5.6 ppb (6) N/A 15.0 ppb (15) N/A N/A 28.0 ppb (26) 0.55 ppb (7) N/A 7.9 μg/m3 (33) 33.0
 
Oct. 17, 2021, 3 p.m. 28.3 ppb (27) 10.2 ppb (10) N/A 18.0 ppb (17) N/A N/A 13.0 ppb (13) 0.7 ppb (8) N/A 9.7 μg/m3 (41) 41.0
 
Oct. 17, 2021, 2 p.m. 25.1 ppb (24) 5.9 ppb (6) N/A 19.0 ppb (18) N/A N/A 6.0 ppb (6) 0.71 ppb (8) N/A 8.3 μg/m3 (35) 35.0
 
Oct. 17, 2021, 1 p.m. 29.6 ppb (28) 7.8 ppb (8) N/A 22.0 ppb (21) N/A N/A 2.0 ppb (2) 0.75 ppb (10) N/A 5.2 μg/m3 (22) 28.0
 
Oct. 17, 2021, noon 24.6 ppb (24) 2.0 ppb (2) N/A 23.0 ppb (22) N/A N/A 2.0 ppb (2) 0.73 ppb (8) N/A 5.4 μg/m3 (23) 24.0
 
Oct. 17, 2021, 11 a.m. 27.0 ppb (26) 2.1 ppb (2) N/A 25.0 ppb (24) N/A N/A 2.0 ppb (2) 0.74 ppb (8) N/A 9.5 μg/m3 (40) 40.0
 
Oct. 17, 2021, 10 a.m. 29.8 ppb (29) 2.2 ppb (3) N/A 28.0 ppb (27) N/A N/A 2.0 ppb (2) 0.8 ppb (10) N/A 9.5 μg/m3 (40) 40.0
 
Oct. 17, 2021, 9 a.m. 35.6 ppb (34) 5.8 ppb (6) N/A 30.0 ppb (29) N/A N/A 2.0 ppb (2) 0.95 ppb (11) N/A 10.4 μg/m3 (44) 44.0
 
Oct. 17, 2021, 8 a.m. 32.9 ppb (32) 1.7 ppb (2) N/A 31.0 ppb (30) N/A N/A 4.0 ppb (4) 0.83 ppb (10) N/A 12.6 μg/m3 (53) 53.0
 
Oct. 17, 2021, 7 a.m. 36.6 ppb (35) 4.7 ppb (5) N/A 32.0 ppb (31) N/A N/A 5.0 ppb (5) 0.87 ppb (11) N/A 14.6 μg/m3 (57) 57.0
 
Oct. 17, 2021, 6 a.m. 36.4 ppb (35) 2.8 ppb (3) N/A 34.0 ppb (33) N/A N/A 5.0 ppb (5) 0.88 ppb (11) N/A 15.5 μg/m3 (59) 59.0
 
Oct. 17, 2021, 5 a.m. 33.1 ppb (32) 1.7 ppb (2) N/A 31.0 ppb (30) N/A N/A 12.0 ppb (12) 0.92 ppb (11) N/A 17.9 μg/m3 (64) 64.0
 
Oct. 17, 2021, 4 a.m. 20.2 ppb (20) -0.1 ppb (0) N/A 20.0 ppb (19) N/A N/A 25.0 ppb (24) 0.5 ppb (6) N/A 9.2 μg/m3 (39) 39.0
 
Oct. 17, 2021, 3 a.m. 17.5 ppb (17) 0.5 ppb (1) N/A 17.0 ppb (17) N/A N/A 34.0 ppb (32) 0.45 ppb (6) N/A 7.9 μg/m3 (33) 33.0
 
Oct. 17, 2021, 2 a.m. 15.2 ppb (15) 0.0 ppb (0) N/A 15.0 ppb (15) N/A N/A 40.0 ppb (38) 0.4 ppb (5) N/A 7.6 μg/m3 (32) 38.0
 
Oct. 17, 2021, 1 a.m. 13.3 ppb (13) -0.2 ppb (0) N/A 13.0 ppb (13) N/A N/A 48.0 ppb (45) 0.37 ppb (5) N/A 6.8 μg/m3 (29) 45.0
 
Oct. 17, 2021, midnight 4.5 ppb (5) -0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 63.0 ppb (78) 0.26 ppb (4) N/A 4.2 μg/m3 (18) 78.0
 
Oct. 16, 2021, 11 p.m. 2.6 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 68.0 ppb (94) 0.24 ppb (3) N/A 1.4 μg/m3 (6) 94.0
 
Oct. 16, 2021, 10 p.m. 2.0 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 65.0 ppb (84) 0.22 ppb (3) N/A 1.0 μg/m3 (5) 84.0
 
Oct. 16, 2021, 9 p.m. 2.1 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 61.0 ppb (71) 0.21 ppb (3) N/A 3.0 μg/m3 (13) 71.0
 
Oct. 16, 2021, 8 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 59.0 ppb (65) 0.22 ppb (3) N/A 2.7 μg/m3 (12) 65.0
 
Oct. 16, 2021, 7 p.m. 2.4 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 55.0 ppb (51) 0.21 ppb (3) N/A 0.5 μg/m3 (3) 51.0
 
Oct. 16, 2021, 6 p.m. 9.6 ppb (10) 1.9 ppb (2) N/A 8.0 ppb (8) N/A N/A 44.0 ppb (41) 0.3 ppb (4) N/A 2.6 μg/m3 (11) 41.0
 
Oct. 16, 2021, 5 p.m. 16.7 ppb (16) 4.2 ppb (4) N/A 13.0 ppb (13) N/A N/A 35.0 ppb (33) 0.37 ppb (5) N/A 5.5 μg/m3 (23) 33.0
 
Oct. 16, 2021, 4 p.m. 35.3 ppb (34) 12.2 ppb (12) N/A 23.0 ppb (22) N/A N/A 21.0 ppb (20) 0.62 ppb (7) N/A 8.6 μg/m3 (36) 36.0
 
Oct. 16, 2021, 3 p.m. 53.6 ppb (51) 27.7 ppb (27) N/A 26.0 ppb (25) N/A N/A 8.0 ppb (8) 0.98 ppb (12) N/A 10.3 μg/m3 (43) 51.0
 
Oct. 16, 2021, 2 p.m. 53.5 ppb (51) 25.8 ppb (25) N/A 28.0 ppb (27) N/A N/A 4.0 ppb (4) 1.02 ppb (12) N/A 7.9 μg/m3 (33) 51.0
 
Oct. 16, 2021, 1 p.m. 24.5 ppb (24) 3.0 ppb (3) N/A 22.0 ppb (21) N/A N/A 8.0 ppb (8) 0.48 ppb (6) N/A 5.7 μg/m3 (24) 24.0
 
Oct. 16, 2021, noon 13.2 ppb (13) -0.2 ppb (0) N/A 13.0 ppb (13) N/A N/A 16.0 ppb (15) 0.34 ppb (4) N/A 4.9 μg/m3 (21) 21.0
 
Oct. 16, 2021, 11 a.m. 14.7 ppb (14) -0.2 ppb (0) N/A 15.0 ppb (15) N/A N/A 13.0 ppb (13) 0.41 ppb (5) N/A 3.9 μg/m3 (17) 17.0
 
Oct. 16, 2021, 10 a.m. 16.1 ppb (16) -0.1 ppb (0) N/A 16.0 ppb (16) N/A N/A 13.0 ppb (13) 0.45 ppb (6) N/A 4.1 μg/m3 (18) 18.0
 
Oct. 16, 2021, 9 a.m. 20.2 ppb (20) -0.1 ppb (0) N/A 20.0 ppb (19) N/A N/A 11.0 ppb (11) 0.51 ppb (6) N/A 5.8 μg/m3 (25) 25.0
 
Oct. 16, 2021, 8 a.m. 21.9 ppb (21) 0.3 ppb (1) N/A 22.0 ppb (21) N/A N/A 10.0 ppb (10) 0.51 ppb (6) N/A 4.6 μg/m3 (20) 21.0
 
Oct. 16, 2021, 7 a.m. 18.3 ppb (18) 0.1 ppb (1) N/A 18.0 ppb (17) N/A N/A 18.0 ppb (17) 0.42 ppb (5) N/A 0.5 μg/m3 (3) 18.0
 
Oct. 16, 2021, 6 a.m. 9.9 ppb (10) -0.3 ppb (0) N/A 10.0 ppb (10) N/A N/A 29.0 ppb (27) 0.34 ppb (4) N/A 0.2 μg/m3 (1) 27.0
 
Oct. 16, 2021, 5 a.m. 2.2 ppb (3) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (41) 0.22 ppb (3) N/A 0.0 μg/m3 (0) 41.0
 
Oct. 16, 2021, 4 a.m. 2.8 ppb (3) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (40) 0.21 ppb (3) N/A 0.0 μg/m3 (0) 40.0
 
Oct. 16, 2021, 3 a.m. 2.6 ppb (3) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (41) 0.21 ppb (3) N/A 3.1 μg/m3 (13) 41.0
 
Oct. 16, 2021, 2 a.m. 2.9 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (40) 0.22 ppb (3) N/A 5.6 μg/m3 (24) 40.0
 
Oct. 16, 2021, 1 a.m. 2.9 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (41) 0.22 ppb (3) N/A 2.4 μg/m3 (10) 41.0
 
Oct. 16, 2021, midnight 2.7 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (43) 0.21 ppb (3) N/A 0.9 μg/m3 (4) 43.0
 
Oct. 15, 2021, 11 p.m. 2.0 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (43) 0.21 ppb (3) N/A 2.4 μg/m3 (10) 43.0
 
Oct. 15, 2021, 10 p.m. 2.3 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (43) 0.21 ppb (3) N/A -0.4 μg/m3 (0) 43.0
 
Oct. 15, 2021, 9 p.m. 2.2 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (44) 0.2 ppb (3) N/A 3.5 μg/m3 (15) 44.0
 
Oct. 15, 2021, 8 p.m. 2.2 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (43) 0.2 ppb (3) N/A 5.4 μg/m3 (23) 43.0
 
Oct. 15, 2021, 7 p.m. 5.7 ppb (6) 1.2 ppb (2) N/A 5.0 ppb (5) N/A N/A 44.0 ppb (41) 0.24 ppb (3) N/A 3.2 μg/m3 (14) 41.0
 
Oct. 15, 2021, 6 p.m. 13.3 ppb (13) 3.3 ppb (4) N/A 10.0 ppb (10) N/A N/A 37.0 ppb (35) 0.3 ppb (4) N/A 3.0 μg/m3 (13) 35.0
 
Oct. 15, 2021, 5 p.m. 3.3 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (36) 0.2 ppb (3) N/A 4.2 μg/m3 (18) 36.0
 
Oct. 15, 2021, 4 p.m. 4.2 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (33) 0.21 ppb (3) N/A 5.2 μg/m3 (22) 33.0
 
Oct. 15, 2021, 3 p.m. 21.7 ppb (21) 6.4 ppb (7) N/A 15.0 ppb (15) N/A N/A 23.0 ppb (22) 0.44 ppb (5) N/A 6.2 μg/m3 (26) 26.0
 
Oct. 15, 2021, 2 p.m. 55.5 ppb (53) 25.7 ppb (25) N/A 30.0 ppb (29) N/A N/A 6.0 ppb (6) 0.84 ppb (10) N/A 8.4 μg/m3 (36) 53.0
 
Oct. 15, 2021, 1 p.m. 48.2 ppb (46) 20.7 ppb (20) N/A 28.0 ppb (27) N/A N/A 1.0 ppb (1) 0.88 ppb (11) N/A 5.7 μg/m3 (24) 46.0
 
Oct. 15, 2021, noon 33.1 ppb (32) 8.7 ppb (9) N/A 24.0 ppb (23) N/A N/A 2.0 ppb (2) 0.77 ppb (10) N/A 5.2 μg/m3 (22) 32.0
 
Oct. 15, 2021, 11 a.m. 22.5 ppb (22) 1.0 ppb (1) N/A 22.0 ppb (21) N/A N/A 5.0 ppb (5) 0.5 ppb (6) N/A 7.9 μg/m3 (33) 33.0
 
Oct. 15, 2021, 10 a.m. 21.7 ppb (21) 0.6 ppb (1) N/A 21.0 ppb (20) N/A N/A 5.0 ppb (5) 0.57 ppb (7) N/A 12.5 μg/m3 (52) 52.0
 
Oct. 15, 2021, 9 a.m. 28.5 ppb (27) 1.8 ppb (2) N/A 27.0 ppb (26) N/A N/A 3.0 ppb (3) 0.77 ppb (10) N/A 16.0 μg/m3 (60) 60.0
 
Oct. 15, 2021, 8 a.m. 35.1 ppb (34) 6.3 ppb (6) N/A 29.0 ppb (28) N/A N/A 3.0 ppb (3) 0.75 ppb (10) N/A 18.7 μg/m3 (65) 65.0
 
Oct. 15, 2021, 7 a.m. 34.7 ppb (33) 2.7 ppb (3) N/A 32.0 ppb (31) N/A N/A 3.0 ppb (3) 0.91 ppb (11) N/A 19.2 μg/m3 (66) 66.0
 
Oct. 15, 2021, 6 a.m. 36.4 ppb (35) 3.4 ppb (4) N/A 33.0 ppb (32) N/A N/A 4.0 ppb (4) 0.88 ppb (11) N/A 18.7 μg/m3 (65) 65.0
 
Oct. 15, 2021, 5 a.m. 30.7 ppb (29) 0.6 ppb (1) N/A 30.0 ppb (29) N/A N/A 11.0 ppb (11) 1.07 ppb (13) N/A 14.7 μg/m3 (57) 57.0
 
Oct. 15, 2021, 4 a.m. 21.0 ppb (20) 0.3 ppb (1) N/A 21.0 ppb (20) N/A N/A 26.0 ppb (25) 0.61 ppb (7) N/A 18.1 μg/m3 (64) 64.0
 
Oct. 15, 2021, 3 a.m. 17.7 ppb (17) 1.0 ppb (1) N/A 17.0 ppb (17) N/A N/A 34.0 ppb (32) 0.42 ppb (5) N/A 13.1 μg/m3 (54) 54.0
 
Oct. 15, 2021, 2 a.m. 19.2 ppb (19) 1.4 ppb (2) N/A 18.0 ppb (17) N/A N/A 36.0 ppb (34) 0.4 ppb (5) N/A 18.2 μg/m3 (64) 64.0
 
Oct. 15, 2021, 1 a.m. 14.1 ppb (14) 1.0 ppb (1) N/A 13.0 ppb (13) N/A N/A 46.0 ppb (43) 0.33 ppb (4) N/A 11.8 μg/m3 (50) 50.0
 
Oct. 15, 2021, midnight 11.6 ppb (11) 0.7 ppb (1) N/A 11.0 ppb (11) N/A N/A 54.0 ppb (50) 0.31 ppb (4) N/A 13.0 μg/m3 (53) 53.0
 
Oct. 14, 2021, 11 p.m. 10.3 ppb (10) 0.5 ppb (1) N/A 10.0 ppb (10) N/A N/A 61.0 ppb (71) 0.33 ppb (4) N/A 17.7 μg/m3 (63) 71.0
 
Oct. 14, 2021, 10 p.m. 13.3 ppb (13) 1.3 ppb (2) N/A 12.0 ppb (12) N/A N/A 58.0 ppb (61) 0.37 ppb (5) N/A 2.2 μg/m3 (10) 61.0
 
Oct. 14, 2021, 9 p.m. 19.8 ppb (19) 3.0 ppb (3) N/A 17.0 ppb (17) N/A N/A 51.0 ppb (48) 0.45 ppb (6) N/A 16.4 μg/m3 (61) 61.0
 
Oct. 14, 2021, 8 p.m. 17.0 ppb (17) 3.1 ppb (3) N/A 14.0 ppb (14) N/A N/A 47.0 ppb (44) 0.42 ppb (5) N/A 9.6 μg/m3 (40) 44.0
 
Oct. 14, 2021, 7 p.m. 19.1 ppb (19) 4.5 ppb (5) N/A 15.0 ppb (15) N/A N/A 40.0 ppb (38) 0.43 ppb (5) N/A 9.3 μg/m3 (39) 39.0
 
Oct. 14, 2021, 6 p.m. 22.1 ppb (21) 5.9 ppb (6) N/A 16.0 ppb (16) N/A N/A 36.0 ppb (34) 0.45 ppb (6) N/A 11.5 μg/m3 (48) 48.0
 
Oct. 14, 2021, 5 p.m. 27.0 ppb (26) 8.5 ppb (9) N/A 18.0 ppb (17) N/A N/A 31.0 ppb (29) 0.5 ppb (6) N/A 14.7 μg/m3 (57) 57.0
 
Oct. 14, 2021, 4 p.m. 44.9 ppb (43) 17.9 ppb (17) N/A 27.0 ppb (26) N/A N/A 19.0 ppb (18) 0.82 ppb (10) N/A 26.6 μg/m3 (82) 82.0
 
Oct. 14, 2021, 3 p.m. 55.0 ppb (53) 27.4 ppb (26) N/A 28.0 ppb (27) N/A N/A 8.0 ppb (8) 0.93 ppb (11) N/A 22.0 μg/m3 (72) 72.0
 
Oct. 14, 2021, 2 p.m. 59.9 ppb (58) 34.6 ppb (33) N/A 25.0 ppb (24) N/A N/A 2.0 ppb (2) 1.05 ppb (13) N/A 12.7 μg/m3 (53) 58.0
 
Oct. 14, 2021, 1 p.m. 48.3 ppb (46) 23.5 ppb (23) N/A 25.0 ppb (24) N/A N/A 1.0 ppb (1) 0.81 ppb (10) N/A 19.8 μg/m3 (68) 68.0
 
Oct. 14, 2021, noon 30.0 ppb (29) 7.9 ppb (8) N/A 22.0 ppb (21) N/A N/A 2.0 ppb (2) 0.66 ppb (8) N/A 13.9 μg/m3 (55) 55.0
 
Oct. 14, 2021, 11 a.m. 22.1 ppb (21) 1.0 ppb (1) N/A 21.0 ppb (20) N/A N/A 5.0 ppb (5) 0.6 ppb (7) N/A 12.2 μg/m3 (52) 52.0
 
Oct. 14, 2021, 10 a.m. 26.0 ppb (25) 2.4 ppb (3) N/A 24.0 ppb (23) N/A N/A 4.0 ppb (4) 0.69 ppb (8) N/A 18.6 μg/m3 (65) 65.0
 
Oct. 14, 2021, 9 a.m. 31.4 ppb (30) 4.7 ppb (5) N/A 27.0 ppb (26) N/A N/A 2.0 ppb (2) 0.76 ppb (10) N/A 20.6 μg/m3 (69) 69.0
 
Oct. 14, 2021, 8 a.m. 33.2 ppb (32) 4.3 ppb (5) N/A 29.0 ppb (28) N/A N/A 2.0 ppb (2) 0.91 ppb (11) N/A 22.0 μg/m3 (72) 72.0
 
Oct. 14, 2021, 7 a.m. 33.5 ppb (32) 3.1 ppb (3) N/A 30.0 ppb (29) N/A N/A 3.0 ppb (3) 0.84 ppb (10) N/A 20.4 μg/m3 (69) 69.0
 
Oct. 14, 2021, 6 a.m. 32.2 ppb (31) 2.9 ppb (3) N/A 29.0 ppb (28) N/A N/A 7.0 ppb (7) 0.85 ppb (10) N/A 24.2 μg/m3 (77) 77.0
 
Oct. 14, 2021, 5 a.m. 30.6 ppb (29) 2.2 ppb (3) N/A 28.0 ppb (27) N/A N/A 14.0 ppb (13) 0.69 ppb (8) N/A 22.2 μg/m3 (73) 73.0
 
Oct. 14, 2021, 4 a.m. 31.7 ppb (30) 3.7 ppb (4) N/A 28.0 ppb (27) N/A N/A 14.0 ppb (13) 0.74 ppb (8) N/A 21.0 μg/m3 (70) 70.0
 
Oct. 14, 2021, 3 a.m. 15.8 ppb (15) 0.9 ppb (1) N/A 15.0 ppb (15) N/A N/A 33.0 ppb (31) 0.42 ppb (5) N/A 23.2 μg/m3 (75) 75.0
 
Oct. 14, 2021, 2 a.m. 10.9 ppb (11) 1.0 ppb (1) N/A 10.0 ppb (10) N/A N/A 42.0 ppb (39) 0.34 ppb (4) N/A 19.3 μg/m3 (67) 67.0
 
Oct. 14, 2021, 1 a.m. 4.5 ppb (5) -0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 47.0 ppb (44) 0.3 ppb (4) N/A 7.6 μg/m3 (32) 44.0
 
Oct. 14, 2021, midnight 4.6 ppb (5) 0.3 ppb (1) N/A 4.0 ppb (4) N/A N/A 47.0 ppb (44) 0.28 ppb (4) N/A 6.9 μg/m3 (29) 44.0
 
Oct. 13, 2021, 11 p.m. 3.4 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 49.0 ppb (46) 0.24 ppb (3) N/A 8.1 μg/m3 (34) 46.0
 
Oct. 13, 2021, 10 p.m. 3.6 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 52.0 ppb (49) 0.25 ppb (3) N/A 5.1 μg/m3 (22) 49.0
 
Oct. 13, 2021, 9 p.m. 1.6 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 53.0 ppb (50) 0.22 ppb (3) N/A 2.9 μg/m3 (13) 50.0
 
Oct. 13, 2021, 8 p.m. 2.0 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 50.0 ppb (47) 0.23 ppb (3) N/A 2.3 μg/m3 (10) 47.0
 
Oct. 13, 2021, 7 p.m. 4.0 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 47.0 ppb (44) 0.25 ppb (3) N/A 1.1 μg/m3 (5) 44.0
 
Oct. 13, 2021, 6 p.m. 5.8 ppb (6) 1.2 ppb (2) N/A 5.0 ppb (5) N/A N/A 44.0 ppb (41) 0.28 ppb (4) N/A 16.6 μg/m3 (61) 61.0
 
Oct. 13, 2021, 5 p.m. 16.4 ppb (16) 4.8 ppb (5) N/A 12.0 ppb (12) N/A N/A 33.0 ppb (31) 0.39 ppb (5) N/A 4.2 μg/m3 (18) 31.0
 
Oct. 13, 2021, 4 p.m. 35.8 ppb (34) 14.9 ppb (15) N/A 21.0 ppb (20) N/A N/A 19.0 ppb (18) 0.61 ppb (7) N/A 12.9 μg/m3 (53) 53.0
 
Oct. 13, 2021, 3 p.m. 57.9 ppb (56) 32.9 ppb (32) N/A 25.0 ppb (24) N/A N/A 8.0 ppb (8) 0.85 ppb (10) N/A 11.4 μg/m3 (48) 56.0
 
Oct. 13, 2021, 2 p.m. 59.7 ppb (58) 37.4 ppb (36) N/A 22.0 ppb (21) N/A N/A 2.0 ppb (2) 1.01 ppb (12) N/A 6.8 μg/m3 (29) 58.0
 
Oct. 13, 2021, 1 p.m. 44.1 ppb (42) 23.0 ppb (22) N/A 21.0 ppb (20) N/A N/A 1.0 ppb (1) 0.8 ppb (10) N/A 8.1 μg/m3 (34) 42.0
 
Oct. 13, 2021, noon 28.1 ppb (27) 8.8 ppb (9) N/A 19.0 ppb (18) N/A N/A 3.0 ppb (3) 0.57 ppb (7) N/A 10.7 μg/m3 (45) 45.0
 
Oct. 13, 2021, 11 a.m. 20.6 ppb (20) 1.5 ppb (2) N/A 19.0 ppb (18) N/A N/A 4.0 ppb (4) 0.48 ppb (6) N/A 16.4 μg/m3 (61) 61.0
 
Oct. 13, 2021, 10 a.m. 26.7 ppb (26) 4.8 ppb (5) N/A 22.0 ppb (21) N/A N/A 2.0 ppb (2) 0.71 ppb (8) N/A 9.5 μg/m3 (40) 40.0
 
Oct. 13, 2021, 9 a.m. 31.2 ppb (30) 6.8 ppb (7) N/A 24.0 ppb (23) N/A N/A 1.0 ppb (1) 0.66 ppb (8) N/A 12.0 μg/m3 (50) 50.0
 
Oct. 13, 2021, 8 a.m. 31.1 ppb (30) 4.8 ppb (5) N/A 26.0 ppb (25) N/A N/A 2.0 ppb (2) 0.71 ppb (8) N/A 20.4 μg/m3 (69) 69.0
 
Oct. 13, 2021, 7 a.m. 28.2 ppb (27) 1.8 ppb (2) N/A 26.0 ppb (25) N/A N/A 4.0 ppb (4) 0.68 ppb (8) N/A 12.7 μg/m3 (53) 53.0
 
Oct. 13, 2021, 6 a.m. 29.0 ppb (28) 2.9 ppb (3) N/A 26.0 ppb (25) N/A N/A 5.0 ppb (5) 0.68 ppb (8) N/A 14.0 μg/m3 (55) 55.0
 
Oct. 13, 2021, 5 a.m. 23.7 ppb (23) 0.8 ppb (1) N/A 23.0 ppb (22) N/A N/A 12.0 ppb (12) 0.61 ppb (7) N/A 12.9 μg/m3 (53) 53.0
 
Oct. 13, 2021, 4 a.m. 13.8 ppb (14) 0.7 ppb (1) N/A 13.0 ppb (13) N/A N/A 27.0 ppb (25) 0.37 ppb (5) N/A 18.7 μg/m3 (65) 65.0
 
Oct. 13, 2021, 3 a.m. 12.5 ppb (12) 1.5 ppb (2) N/A 11.0 ppb (11) N/A N/A 30.0 ppb (28) 0.35 ppb (4) N/A 16.7 μg/m3 (61) 61.0
 
Oct. 13, 2021, 2 a.m. 8.4 ppb (8) 0.5 ppb (1) N/A 8.0 ppb (8) N/A N/A 36.0 ppb (34) 0.3 ppb (4) N/A 11.5 μg/m3 (48) 48.0
 
Oct. 13, 2021, 1 a.m. 3.3 ppb (4) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (40) 0.26 ppb (4) N/A 9.6 μg/m3 (40) 40.0
 
Oct. 13, 2021, midnight 4.1 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 46.0 ppb (43) 0.26 ppb (4) N/A 7.5 μg/m3 (32) 43.0