ID: 150

AQSQID: 060371201

Site Name: Reseda

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

Updated: March 1, 2021, 4:32 p.m.

Location: Reseda (Reseda), CA

Reporting: True, Located: True

Current AQI: 82.0

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
March 1, 2021, 3 p.m. 83.0 ppb (82) 49.9 ppb (48) N/A 33.0 ppb (32) N/A N/A 6.0 ppb (6) 1.14 ppb (13) N/A 6.3 μg/m3 (27) 82.0
 
March 1, 2021, 2 p.m. 73.2 ppb (72) 41.9 ppb (40) N/A 31.0 ppb (30) N/A N/A 3.0 ppb (3) 0.77 ppb (10) N/A 6.7 μg/m3 (28) 72.0
 
March 1, 2021, 1 p.m. 46.2 ppb (44) 16.3 ppb (16) N/A 30.0 ppb (29) N/A N/A 2.0 ppb (2) 0.7 ppb (8) N/A 7.8 μg/m3 (33) 44.0
 
March 1, 2021, noon 31.6 ppb (30) 2.8 ppb (3) N/A 29.0 ppb (28) N/A N/A 6.0 ppb (6) 0.44 ppb (5) N/A 3.3 μg/m3 (14) 30.0
 
March 1, 2021, 11 a.m. 25.7 ppb (25) 0.0 ppb (0) N/A 26.0 ppb (25) N/A N/A 8.0 ppb (8) 0.48 ppb (6) N/A 0.1 μg/m3 (1) 25.0
 
March 1, 2021, 10 a.m. 22.6 ppb (22) -0.8 ppb (0) N/A 23.0 ppb (22) N/A N/A 12.0 ppb (12) 0.38 ppb (5) N/A 1.1 μg/m3 (5) 22.0
 
March 1, 2021, 9 a.m. 19.9 ppb (19) -0.9 ppb (0) N/A 21.0 ppb (20) N/A N/A 16.0 ppb (15) 0.41 ppb (5) N/A 0.2 μg/m3 (1) 20.0
 
March 1, 2021, 8 a.m. 16.1 ppb (16) -1.0 ppb (0) N/A 17.0 ppb (17) N/A N/A 22.0 ppb (21) 0.4 ppb (5) N/A -1.0 μg/m3 (0) 21.0
 
March 1, 2021, 7 a.m. 18.4 ppb (18) -0.9 ppb (0) N/A 19.0 ppb (18) N/A N/A 22.0 ppb (21) 0.41 ppb (5) N/A 2.2 μg/m3 (10) 21.0
 
March 1, 2021, 6 a.m. 15.6 ppb (15) -0.7 ppb (0) N/A 16.0 ppb (16) N/A N/A 28.0 ppb (26) 0.39 ppb (5) N/A 2.4 μg/m3 (10) 26.0
 
March 1, 2021, 5 a.m. 10.1 ppb (10) -0.5 ppb (0) N/A 11.0 ppb (11) N/A N/A 37.0 ppb (35) 0.26 ppb (4) N/A 1.7 μg/m3 (8) 35.0
 
March 1, 2021, 4 a.m. 3.5 ppb (4) -0.7 ppb (0) N/A 4.0 ppb (4) N/A N/A 45.0 ppb (42) 0.22 ppb (3) N/A 2.5 μg/m3 (11) 42.0
 
March 1, 2021, 3 a.m. 2.4 ppb (3) -0.9 ppb (0) N/A 3.0 ppb (3) N/A N/A 47.0 ppb (44) 0.24 ppb (3) N/A 1.7 μg/m3 (8) 44.0
 
March 1, 2021, 2 a.m. 3.0 ppb (3) -0.8 ppb (0) N/A 4.0 ppb (4) N/A N/A 48.0 ppb (45) 0.23 ppb (3) N/A 3.2 μg/m3 (14) 45.0
 
March 1, 2021, 1 a.m. 1.7 ppb (2) -0.8 ppb (0) N/A 2.0 ppb (2) N/A N/A 50.0 ppb (47) 0.21 ppb (3) N/A 4.5 μg/m3 (19) 47.0
 
March 1, 2021, midnight 1.2 ppb (2) -0.7 ppb (0) N/A 2.0 ppb (2) N/A N/A 50.0 ppb (47) 0.21 ppb (3) N/A 4.5 μg/m3 (19) 47.0
 
Feb. 28, 2021, 11 p.m. 0.9 ppb (1) -0.6 ppb (0) N/A 2.0 ppb (2) N/A N/A 51.0 ppb (48) 0.21 ppb (3) N/A 4.0 μg/m3 (17) 48.0
 
Feb. 28, 2021, 10 p.m. 0.6 ppb (1) -0.6 ppb (0) N/A 1.0 ppb (1) N/A N/A 51.0 ppb (48) 0.2 ppb (3) N/A 3.7 μg/m3 (16) 48.0
 
Feb. 28, 2021, 9 p.m. 0.5 ppb (1) -0.6 ppb (0) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (47) 0.2 ppb (3) N/A 7.6 μg/m3 (32) 47.0
 
Feb. 28, 2021, 8 p.m. 0.5 ppb (1) -0.6 ppb (0) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (47) 0.2 ppb (3) N/A 6.6 μg/m3 (28) 47.0
 
Feb. 28, 2021, 7 p.m. 0.5 ppb (1) -0.6 ppb (0) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (46) 0.2 ppb (3) N/A 5.9 μg/m3 (25) 46.0
 
Feb. 28, 2021, 6 p.m. 0.2 ppb (1) -0.6 ppb (0) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (46) 0.19 ppb (3) N/A 10.7 μg/m3 (45) 46.0
 
Feb. 28, 2021, 5 p.m. 0.1 ppb (1) -0.7 ppb (0) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (46) 0.19 ppb (3) N/A 5.8 μg/m3 (25) 46.0
 
Feb. 28, 2021, 4 p.m. 0.2 ppb (1) -0.6 ppb (0) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (46) 0.19 ppb (3) N/A -1.8 μg/m3 (0) 46.0
 
Feb. 28, 2021, 3 p.m. -0.1 ppb (0) -0.9 ppb (0) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (46) 0.17 ppb (3) N/A 2.1 μg/m3 (9) 46.0
 
Feb. 28, 2021, 2 p.m. -0.6 ppb (0) -1.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 49.0 ppb (46) 0.15 ppb (2) N/A 4.8 μg/m3 (20) 46.0
 
Feb. 28, 2021, 1 p.m. -0.5 ppb (0) -1.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 49.0 ppb (46) 0.15 ppb (2) N/A 2.6 μg/m3 (11) 46.0
 
Feb. 28, 2021, noon -0.5 ppb (0) -0.8 ppb (0) N/A 0.0 ppb (0) N/A N/A 49.0 ppb (46) 0.16 ppb (3) N/A 2.1 μg/m3 (9) 46.0
 
Feb. 28, 2021, 11 a.m. -0.5 ppb (0) -0.9 ppb (0) N/A 0.0 ppb (0) N/A N/A 49.0 ppb (46) 0.16 ppb (3) N/A 1.6 μg/m3 (7) 46.0
 
Feb. 28, 2021, 10 a.m. -0.1 ppb (0) -0.8 ppb (0) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (46) 0.16 ppb (3) N/A 2.9 μg/m3 (13) 46.0
 
Feb. 28, 2021, 9 a.m. -0.1 ppb (0) -1.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (44) 0.16 ppb (3) N/A 5.9 μg/m3 (25) 44.0
 
Feb. 28, 2021, 8 a.m. 0.5 ppb (1) -1.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (44) 0.17 ppb (3) N/A 4.9 μg/m3 (21) 44.0
 
Feb. 28, 2021, 7 a.m. 0.7 ppb (1) -1.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (43) 0.18 ppb (3) N/A 2.9 μg/m3 (13) 43.0
 
Feb. 28, 2021, 6 a.m. 1.0 ppb (1) -1.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (44) 0.19 ppb (3) N/A 4.7 μg/m3 (20) 44.0
 
Feb. 28, 2021, 5 a.m. 1.6 ppb (2) -1.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (43) 0.19 ppb (3) N/A 2.9 μg/m3 (13) 43.0
 
Feb. 28, 2021, 4 a.m. 1.3 ppb (2) -1.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (44) 0.2 ppb (3) N/A 1.2 μg/m3 (5) 44.0
 
Feb. 28, 2021, 3 a.m. 1.8 ppb (2) -0.9 ppb (0) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (43) 0.2 ppb (3) N/A 0.5 μg/m3 (3) 43.0
 
Feb. 28, 2021, 2 a.m. 1.6 ppb (2) -0.7 ppb (0) N/A 2.0 ppb (2) N/A N/A 49.0 ppb (46) 0.2 ppb (3) N/A 0.7 μg/m3 (3) 46.0
 
Feb. 28, 2021, 1 a.m. 1.9 ppb (2) -0.7 ppb (0) N/A 3.0 ppb (3) N/A N/A 48.0 ppb (45) 0.21 ppb (3) N/A 3.0 μg/m3 (13) 45.0
 
Feb. 28, 2021, midnight 1.0 ppb (1) -0.7 ppb (0) N/A 2.0 ppb (2) N/A N/A 50.0 ppb (47) 0.19 ppb (3) N/A 3.0 μg/m3 (13) 47.0
 
Feb. 27, 2021, 11 p.m. 1.1 ppb (2) -0.6 ppb (0) N/A 2.0 ppb (2) N/A N/A 51.0 ppb (48) 0.2 ppb (3) N/A 3.5 μg/m3 (15) 48.0
 
Feb. 27, 2021, 10 p.m. 4.2 ppb (4) 1.3 ppb (2) N/A 3.0 ppb (3) N/A N/A 50.0 ppb (47) 0.2 ppb (3) N/A 3.4 μg/m3 (15) 47.0
 
Feb. 27, 2021, 9 p.m. 1.1 ppb (2) -0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 50.0 ppb (47) 0.2 ppb (3) N/A 4.7 μg/m3 (20) 47.0
 
Feb. 27, 2021, 8 p.m. 0.9 ppb (1) -0.6 ppb (0) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (46) 0.19 ppb (3) N/A 5.4 μg/m3 (23) 46.0
 
Feb. 27, 2021, 7 p.m. 1.0 ppb (1) -0.6 ppb (0) N/A 2.0 ppb (2) N/A N/A 49.0 ppb (46) 0.19 ppb (3) N/A 5.9 μg/m3 (25) 46.0
 
Feb. 27, 2021, 6 p.m. 1.3 ppb (2) -0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (44) 0.2 ppb (3) N/A 7.3 μg/m3 (31) 44.0
 
Feb. 27, 2021, 5 p.m. 1.3 ppb (2) -0.6 ppb (0) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (42) 0.2 ppb (3) N/A 6.1 μg/m3 (26) 42.0
 
Feb. 27, 2021, 4 p.m. 1.9 ppb (2) -0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (41) 0.2 ppb (3) N/A 5.8 μg/m3 (25) 41.0
 
Feb. 27, 2021, 3 p.m. 2.0 ppb (2) -0.7 ppb (0) N/A 3.0 ppb (3) N/A N/A 45.0 ppb (42) 0.2 ppb (3) N/A 4.3 μg/m3 (18) 42.0
 
Feb. 27, 2021, 2 p.m. 1.3 ppb (2) -0.8 ppb (0) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (45) 0.19 ppb (3) N/A 2.9 μg/m3 (13) 45.0
 
Feb. 27, 2021, 1 p.m. 0.0 ppb (0) -1.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (47) 0.17 ppb (3) N/A 6.6 μg/m3 (28) 47.0
 
Feb. 27, 2021, noon 0.2 ppb (1) -1.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (47) 0.17 ppb (3) N/A 8.8 μg/m3 (37) 47.0
 
Feb. 27, 2021, 11 a.m. 4.3 ppb (5) -1.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 42.0 ppb (39) 0.22 ppb (3) N/A 8.1 μg/m3 (34) 39.0
 
Feb. 27, 2021, 10 a.m. 18.6 ppb (18) -0.3 ppb (0) N/A 19.0 ppb (18) N/A N/A 21.0 ppb (20) 0.42 ppb (5) N/A 11.2 μg/m3 (47) 47.0
 
Feb. 27, 2021, 9 a.m. 28.2 ppb (27) 0.5 ppb (1) N/A 28.0 ppb (27) N/A N/A 6.0 ppb (6) 0.63 ppb (7) N/A 13.2 μg/m3 (54) 54.0
 
Feb. 27, 2021, 8 a.m. 35.6 ppb (34) 4.0 ppb (4) N/A 32.0 ppb (31) N/A N/A 5.0 ppb (5) 0.84 ppb (10) N/A 14.2 μg/m3 (56) 56.0
 
Feb. 27, 2021, 7 a.m. 34.5 ppb (33) 1.9 ppb (2) N/A 33.0 ppb (32) N/A N/A 6.0 ppb (6) 0.7 ppb (8) N/A 15.9 μg/m3 (59) 59.0
 
Feb. 27, 2021, 6 a.m. 45.9 ppb (44) 8.2 ppb (8) N/A 38.0 ppb (36) N/A N/A 3.0 ppb (3) 0.94 ppb (11) N/A 18.4 μg/m3 (65) 65.0
 
Feb. 27, 2021, 5 a.m. 38.4 ppb (37) 1.6 ppb (2) N/A 37.0 ppb (35) N/A N/A 6.0 ppb (6) 0.74 ppb (8) N/A 13.0 μg/m3 (53) 53.0
 
Feb. 27, 2021, 4 a.m. 40.9 ppb (39) 3.3 ppb (4) N/A 38.0 ppb (36) N/A N/A 8.0 ppb (8) 0.74 ppb (8) N/A 9.8 μg/m3 (41) 41.0
 
Feb. 27, 2021, 3 a.m. 30.0 ppb (29) 0.3 ppb (1) N/A 30.0 ppb (29) N/A N/A 19.0 ppb (18) 0.52 ppb (6) N/A 6.0 μg/m3 (25) 29.0
 
Feb. 27, 2021, 2 a.m. 19.4 ppb (19) -0.7 ppb (0) N/A 20.0 ppb (19) N/A N/A 33.0 ppb (31) 0.42 ppb (5) N/A 6.7 μg/m3 (28) 31.0
 
Feb. 27, 2021, 1 a.m. 11.8 ppb (12) -0.8 ppb (0) N/A 13.0 ppb (13) N/A N/A 42.0 ppb (39) 0.34 ppb (4) N/A 6.5 μg/m3 (28) 39.0
 
Feb. 27, 2021, midnight 8.4 ppb (8) -0.3 ppb (0) N/A 9.0 ppb (9) N/A N/A 48.0 ppb (45) 0.27 ppb (4) N/A 5.2 μg/m3 (22) 45.0
 
Feb. 26, 2021, 11 p.m. 7.0 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (7) N/A N/A 54.0 ppb (50) 0.25 ppb (3) N/A 7.0 μg/m3 (30) 50.0
 
Feb. 26, 2021, 10 p.m. 16.6 ppb (16) 2.1 ppb (2) N/A 15.0 ppb (15) N/A N/A 47.0 ppb (44) 0.34 ppb (4) N/A 8.4 μg/m3 (36) 44.0
 
Feb. 26, 2021, 9 p.m. 11.2 ppb (11) 1.3 ppb (2) N/A 10.0 ppb (10) N/A N/A 50.0 ppb (47) 0.29 ppb (4) N/A 8.2 μg/m3 (35) 47.0
 
Feb. 26, 2021, 8 p.m. 7.1 ppb (7) 0.5 ppb (1) N/A 7.0 ppb (7) N/A N/A 51.0 ppb (48) 0.25 ppb (3) N/A 8.6 μg/m3 (36) 48.0
 
Feb. 26, 2021, 7 p.m. 8.1 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (7) N/A N/A 48.0 ppb (45) 0.25 ppb (3) N/A 6.2 μg/m3 (26) 45.0
 
Feb. 26, 2021, 6 p.m. 11.9 ppb (12) 2.1 ppb (2) N/A 10.0 ppb (10) N/A N/A 44.0 ppb (41) 0.27 ppb (4) N/A 8.8 μg/m3 (37) 41.0
 
Feb. 26, 2021, 5 p.m. 21.4 ppb (21) 5.9 ppb (6) N/A 16.0 ppb (16) N/A N/A 35.0 ppb (33) 0.37 ppb (5) N/A 10.6 μg/m3 (45) 45.0
 
Feb. 26, 2021, 4 p.m. 55.0 ppb (53) 24.3 ppb (23) N/A 31.0 ppb (30) N/A N/A 15.0 ppb (14) 0.7 ppb (8) N/A 9.5 μg/m3 (40) 53.0
 
Feb. 26, 2021, 3 p.m. 74.1 ppb (73) 39.6 ppb (38) N/A 34.0 ppb (33) N/A N/A 7.0 ppb (7) 1.01 ppb (12) N/A 9.0 μg/m3 (38) 73.0
 
Feb. 26, 2021, 2 p.m. 52.2 ppb (50) 17.8 ppb (17) N/A 34.0 ppb (33) N/A N/A 4.0 ppb (4) 0.76 ppb (10) N/A 9.3 μg/m3 (39) 50.0
 
Feb. 26, 2021, 1 p.m. 28.3 ppb (27) 1.7 ppb (2) N/A 27.0 ppb (26) N/A N/A 11.0 ppb (11) 0.42 ppb (5) N/A 9.5 μg/m3 (40) 40.0
 
Feb. 26, 2021, noon 19.6 ppb (19) 0.3 ppb (1) N/A 19.0 ppb (18) N/A N/A 19.0 ppb (18) 0.29 ppb (4) N/A 4.1 μg/m3 (18) 19.0
 
Feb. 26, 2021, 11 a.m. 8.2 ppb (8) -1.2 ppb (0) N/A 9.0 ppb (9) N/A N/A 32.0 ppb (30) 0.2 ppb (3) N/A 0.6 μg/m3 (3) 30.0
 
Feb. 26, 2021, 10 a.m. 6.0 ppb (6) -1.1 ppb (0) N/A 7.0 ppb (7) N/A N/A 37.0 ppb (35) 0.2 ppb (3) N/A 0.4 μg/m3 (2) 35.0
 
Feb. 26, 2021, 9 a.m. 0.1 ppb (1) -1.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (44) 0.16 ppb (3) N/A 0.0 μg/m3 (0) 44.0
 
Feb. 26, 2021, 8 a.m. 0.3 ppb (1) -1.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (45) 0.16 ppb (3) N/A -0.7 μg/m3 (0) 45.0
 
Feb. 26, 2021, 7 a.m. 0.9 ppb (1) -0.9 ppb (0) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (43) 0.18 ppb (3) N/A 0.0 μg/m3 (0) 43.0
 
Feb. 26, 2021, 6 a.m. 1.0 ppb (1) -0.9 ppb (0) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (44) 0.18 ppb (3) N/A 1.7 μg/m3 (8) 44.0
 
Feb. 26, 2021, 5 a.m. 7.0 ppb (7) -0.8 ppb (0) N/A 8.0 ppb (8) N/A N/A 39.0 ppb (37) 0.25 ppb (3) N/A 1.0 μg/m3 (5) 37.0
 
Feb. 26, 2021, 4 a.m. 4.1 ppb (4) -0.6 ppb (0) N/A 5.0 ppb (5) N/A N/A 43.0 ppb (40) 0.22 ppb (3) N/A 0.7 μg/m3 (3) 40.0
 
Feb. 26, 2021, 3 a.m. 3.1 ppb (3) -0.8 ppb (0) N/A 4.0 ppb (4) N/A N/A 45.0 ppb (42) 0.22 ppb (3) N/A 1.0 μg/m3 (5) 42.0
 
Feb. 26, 2021, 2 a.m. 4.1 ppb (4) -0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 45.0 ppb (42) 0.22 ppb (3) N/A 0.7 μg/m3 (3) 42.0
 
Feb. 26, 2021, 1 a.m. 3.2 ppb (4) -0.6 ppb (0) N/A 4.0 ppb (4) N/A N/A 47.0 ppb (44) 0.21 ppb (3) N/A 2.5 μg/m3 (11) 44.0
 
Feb. 26, 2021, midnight 2.4 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 49.0 ppb (46) 0.19 ppb (3) N/A 3.4 μg/m3 (15) 46.0
 
Feb. 25, 2021, 11 p.m. 1.8 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 50.0 ppb (47) 0.19 ppb (3) N/A 0.5 μg/m3 (3) 47.0
 
Feb. 25, 2021, 10 p.m. 1.7 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 50.0 ppb (47) 0.19 ppb (3) N/A 0.7 μg/m3 (3) 47.0
 
Feb. 25, 2021, 9 p.m. 1.6 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 50.0 ppb (47) 0.18 ppb (3) N/A 2.2 μg/m3 (10) 47.0
 
Feb. 25, 2021, 8 p.m. 1.7 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 50.0 ppb (47) 0.17 ppb (3) N/A 4.9 μg/m3 (21) 47.0
 
Feb. 25, 2021, 7 p.m. 1.1 ppb (2) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 51.0 ppb (48) 0.17 ppb (3) N/A 7.1 μg/m3 (30) 48.0
 
Feb. 25, 2021, 6 p.m. 0.9 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 52.0 ppb (49) 0.17 ppb (3) N/A 8.3 μg/m3 (35) 49.0
 
Feb. 25, 2021, 5 p.m. 0.9 ppb (1) -0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 52.0 ppb (49) 0.16 ppb (3) N/A 7.3 μg/m3 (31) 49.0
 
Feb. 25, 2021, 4 p.m. 1.3 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 51.0 ppb (48) 0.16 ppb (3) N/A 5.8 μg/m3 (25) 48.0
 
Feb. 25, 2021, 3 p.m. 1.3 ppb (2) -0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 51.0 ppb (48) 0.17 ppb (3) N/A 6.8 μg/m3 (29) 48.0
 
Feb. 25, 2021, 2 p.m. 0.9 ppb (1) -0.6 ppb (0) N/A 2.0 ppb (2) N/A N/A 52.0 ppb (49) 0.16 ppb (3) N/A 7.1 μg/m3 (30) 49.0
 
Feb. 25, 2021, 1 p.m. -0.2 ppb (0) -0.8 ppb (0) N/A 1.0 ppb (1) N/A N/A 52.0 ppb (49) 0.15 ppb (2) N/A 7.1 μg/m3 (30) 49.0
 
Feb. 25, 2021, noon -0.2 ppb (0) -0.7 ppb (0) N/A 0.0 ppb (0) N/A N/A 52.0 ppb (49) 0.16 ppb (3) N/A 16.4 μg/m3 (61) 61.0
 
Feb. 25, 2021, 11 a.m. -0.5 ppb (0) -0.7 ppb (0) N/A 0.0 ppb (0) N/A N/A 50.0 ppb (47) 0.14 ppb (2) N/A 8.9 μg/m3 (38) 47.0
 
Feb. 25, 2021, 10 a.m. -0.3 ppb (0) -0.8 ppb (0) N/A 0.0 ppb (0) N/A N/A 50.0 ppb (47) 0.15 ppb (2) N/A 31.3 μg/m3 (92) 92.0
 
Feb. 25, 2021, 9 a.m. 0.6 ppb (1) -0.9 ppb (0) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (44) 0.16 ppb (3) N/A 9.5 μg/m3 (40) 44.0
 
Feb. 25, 2021, 8 a.m. 0.9 ppb (1) -0.9 ppb (0) N/A 2.0 ppb (2) N/A N/A 49.0 ppb (46) 0.17 ppb (3) N/A 7.1 μg/m3 (30) 46.0
 
Feb. 25, 2021, 7 a.m. 2.5 ppb (3) -0.9 ppb (0) N/A 3.0 ppb (3) N/A N/A 47.0 ppb (44) 0.18 ppb (3) N/A 5.4 μg/m3 (23) 44.0
 
Feb. 25, 2021, 6 a.m. 2.3 ppb (3) -1.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 48.0 ppb (45) 0.18 ppb (3) N/A 5.4 μg/m3 (23) 45.0
 
Feb. 25, 2021, 5 a.m. 2.5 ppb (3) -1.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 48.0 ppb (45) 0.19 ppb (3) N/A 10.7 μg/m3 (45) 45.0
 
Feb. 25, 2021, 4 a.m. 18.7 ppb (18) -0.5 ppb (0) N/A 19.0 ppb (18) N/A N/A 33.0 ppb (31) 0.43 ppb (5) N/A 14.4 μg/m3 (56) 56.0
 
Feb. 25, 2021, 3 a.m. 26.6 ppb (26) -0.4 ppb (0) N/A 27.0 ppb (26) N/A N/A 29.0 ppb (27) 0.49 ppb (6) N/A 14.5 μg/m3 (57) 57.0
 
Feb. 25, 2021, 2 a.m. 24.7 ppb (24) -0.2 ppb (0) N/A 25.0 ppb (24) N/A N/A 35.0 ppb (33) 0.46 ppb (6) N/A 18.7 μg/m3 (65) 65.0
 
Feb. 25, 2021, 1 a.m. 7.3 ppb (7) -0.8 ppb (0) N/A 8.0 ppb (8) N/A N/A 58.0 ppb (61) 0.28 ppb (4) N/A 8.6 μg/m3 (36) 61.0
 
Feb. 25, 2021, midnight 10.7 ppb (11) 0.8 ppb (1) N/A 10.0 ppb (10) N/A N/A 59.0 ppb (65) 0.28 ppb (4) N/A 8.9 μg/m3 (38) 65.0
 
Feb. 24, 2021, 11 p.m. 14.2 ppb (14) 0.8 ppb (1) N/A 13.0 ppb (13) N/A N/A 60.0 ppb (68) 0.32 ppb (4) N/A 10.3 μg/m3 (43) 68.0
 
Feb. 24, 2021, 10 p.m. 16.2 ppb (16) 1.5 ppb (2) N/A 15.0 ppb (15) N/A N/A 58.0 ppb (61) 0.36 ppb (5) N/A 10.5 μg/m3 (44) 61.0
 
Feb. 24, 2021, 9 p.m. 13.4 ppb (13) 1.3 ppb (2) N/A 12.0 ppb (12) N/A N/A 58.0 ppb (61) 0.33 ppb (4) N/A 9.8 μg/m3 (41) 61.0
 
Feb. 24, 2021, 8 p.m. 11.1 ppb (11) 1.2 ppb (2) N/A 10.0 ppb (10) N/A N/A 55.0 ppb (51) 0.3 ppb (4) N/A 8.1 μg/m3 (34) 51.0
 
Feb. 24, 2021, 7 p.m. 7.8 ppb (8) 0.6 ppb (1) N/A 7.0 ppb (7) N/A N/A 53.0 ppb (50) 0.26 ppb (4) N/A 7.9 μg/m3 (33) 50.0
 
Feb. 24, 2021, 6 p.m. 19.4 ppb (19) 4.1 ppb (4) N/A 15.0 ppb (15) N/A N/A 40.0 ppb (38) 0.38 ppb (5) N/A N/A 38.0
 
Feb. 24, 2021, 5 p.m. 30.7 ppb (29) 9.6 ppb (10) N/A 21.0 ppb (20) N/A N/A 28.0 ppb (26) 0.54 ppb (6) N/A N/A 29.0
 
Feb. 24, 2021, 4 p.m. 49.3 ppb (47) 22.9 ppb (22) N/A 26.0 ppb (25) N/A N/A 13.0 ppb (13) 0.74 ppb (8) N/A 9.3 μg/m3 (39) 47.0
 
Feb. 24, 2021, 3 p.m. 66.0 ppb (64) 41.1 ppb (39) N/A 25.0 ppb (24) N/A N/A 5.0 ppb (5) 1.02 ppb (12) N/A 10.7 μg/m3 (45) 64.0
 
Feb. 24, 2021, 2 p.m. 66.2 ppb (64) 43.4 ppb (41) N/A 23.0 ppb (22) N/A N/A 2.0 ppb (2) 1.1 ppb (13) N/A 9.6 μg/m3 (40) 64.0
 
Feb. 24, 2021, 1 p.m. 44.6 ppb (43) 21.8 ppb (21) N/A 23.0 ppb (22) N/A N/A 2.0 ppb (2) 0.72 ppb (8) N/A 6.6 μg/m3 (28) 43.0
 
Feb. 24, 2021, noon 33.6 ppb (32) 10.4 ppb (10) N/A 23.0 ppb (22) N/A N/A 3.0 ppb (3) 0.62 ppb (7) N/A 8.4 μg/m3 (36) 36.0
 
Feb. 24, 2021, 11 a.m. 30.5 ppb (29) 4.6 ppb (5) N/A 26.0 ppb (25) N/A N/A 2.0 ppb (2) 0.64 ppb (7) N/A 10.3 μg/m3 (43) 43.0
 
Feb. 24, 2021, 10 a.m. 33.6 ppb (32) 7.7 ppb (8) N/A 26.0 ppb (25) N/A N/A 3.0 ppb (3) 0.72 ppb (8) N/A 10.0 μg/m3 (42) 42.0
 
Feb. 24, 2021, 9 a.m. 31.6 ppb (30) 3.7 ppb (4) N/A 28.0 ppb (27) N/A N/A 3.0 ppb (3) 0.66 ppb (8) N/A 11.5 μg/m3 (48) 48.0
 
Feb. 24, 2021, 8 a.m. 39.5 ppb (38) 9.2 ppb (9) N/A 30.0 ppb (29) N/A N/A 3.0 ppb (3) 0.73 ppb (8) N/A 11.0 μg/m3 (46) 46.0
 
Feb. 24, 2021, 7 a.m. 42.1 ppb (40) 7.6 ppb (8) N/A 34.0 ppb (33) N/A N/A 4.0 ppb (4) 0.89 ppb (11) N/A 7.4 μg/m3 (31) 40.0
 
Feb. 24, 2021, 6 a.m. 40.2 ppb (38) 5.8 ppb (6) N/A 34.0 ppb (33) N/A N/A 4.0 ppb (4) 0.69 ppb (8) N/A 5.2 μg/m3 (22) 38.0
 
Feb. 24, 2021, 5 a.m. 33.3 ppb (32) 3.1 ppb (3) N/A 30.0 ppb (29) N/A N/A 13.0 ppb (13) 0.53 ppb (6) N/A 4.4 μg/m3 (19) 32.0
 
Feb. 24, 2021, 4 a.m. 14.6 ppb (14) -1.5 ppb (0) N/A 16.0 ppb (16) N/A N/A 30.0 ppb (28) 0.37 ppb (5) N/A 3.0 μg/m3 (13) 28.0
 
Feb. 24, 2021, 3 a.m. 9.0 ppb (9) -1.6 ppb (0) N/A 11.0 ppb (11) N/A N/A 38.0 ppb (36) 0.29 ppb (4) N/A 3.5 μg/m3 (15) 36.0
 
Feb. 24, 2021, 2 a.m. 9.7 ppb (10) -1.5 ppb (0) N/A 11.0 ppb (11) N/A N/A 38.0 ppb (36) 0.3 ppb (4) N/A 3.7 μg/m3 (16) 36.0
 
Feb. 24, 2021, 1 a.m. 9.2 ppb (9) -0.4 ppb (0) N/A 10.0 ppb (10) N/A N/A 42.0 ppb (39) 0.27 ppb (4) N/A 0.8 μg/m3 (4) 39.0
 
Feb. 24, 2021, midnight 5.5 ppb (6) -0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 50.0 ppb (47) 0.23 ppb (3) N/A -1.1 μg/m3 (0) 47.0
 
Feb. 23, 2021, 11 p.m. 8.8 ppb (9) 0.1 ppb (1) N/A 9.0 ppb (9) N/A N/A 53.0 ppb (50) 0.28 ppb (4) N/A 0.0 μg/m3 (0) 50.0
 
Feb. 23, 2021, 10 p.m. 15.7 ppb (15) 2.4 ppb (3) N/A 13.0 ppb (13) N/A N/A 47.0 ppb (44) 0.32 ppb (4) N/A 1.3 μg/m3 (6) 44.0
 
Feb. 23, 2021, 9 p.m. 14.6 ppb (14) 1.8 ppb (2) N/A 13.0 ppb (13) N/A N/A 45.0 ppb (42) 0.34 ppb (4) N/A 2.7 μg/m3 (12) 42.0
 
Feb. 23, 2021, 8 p.m. 15.1 ppb (15) 2.8 ppb (3) N/A 12.0 ppb (12) N/A N/A 42.0 ppb (39) 0.35 ppb (4) N/A 3.0 μg/m3 (13) 39.0
 
Feb. 23, 2021, 7 p.m. 10.7 ppb (11) 2.0 ppb (2) N/A 9.0 ppb (9) N/A N/A 40.0 ppb (38) 0.27 ppb (4) N/A 0.4 μg/m3 (2) 38.0
 
Feb. 23, 2021, 6 p.m. 8.3 ppb (8) 1.7 ppb (2) N/A 7.0 ppb (7) N/A N/A 39.0 ppb (37) 0.24 ppb (3) N/A 3.1 μg/m3 (13) 37.0
 
Feb. 23, 2021, 5 p.m. 28.7 ppb (28) 10.6 ppb (10) N/A 18.0 ppb (17) N/A N/A 24.0 ppb (23) 0.45 ppb (6) N/A 10.4 μg/m3 (44) 44.0
 
Feb. 23, 2021, 4 p.m. 62.7 ppb (61) 35.6 ppb (34) N/A 27.0 ppb (26) N/A N/A 12.0 ppb (12) 0.8 ppb (10) N/A 8.0 μg/m3 (34) 61.0
 
Feb. 23, 2021, 3 p.m. 75.2 ppb (74) 49.1 ppb (47) N/A 26.0 ppb (25) N/A N/A 5.0 ppb (5) 1.02 ppb (12) N/A 2.8 μg/m3 (12) 74.0
 
Feb. 23, 2021, 2 p.m. 67.5 ppb (66) 45.6 ppb (44) N/A 22.0 ppb (21) N/A N/A 2.0 ppb (2) 0.96 ppb (12) N/A 0.8 μg/m3 (4) 66.0
 
Feb. 23, 2021, 1 p.m. 50.6 ppb (48) 30.0 ppb (29) N/A 21.0 ppb (20) N/A N/A 2.0 ppb (2) 0.74 ppb (8) N/A 1.1 μg/m3 (5) 48.0
 
Feb. 23, 2021, noon 44.0 ppb (42) 23.0 ppb (22) N/A 21.0 ppb (20) N/A N/A 3.0 ppb (3) 0.72 ppb (8) N/A 3.9 μg/m3 (17) 42.0
 
Feb. 23, 2021, 11 a.m. 44.6 ppb (43) 22.0 ppb (21) N/A 23.0 ppb (22) N/A N/A 2.0 ppb (2) 0.79 ppb (10) N/A 7.3 μg/m3 (31) 43.0
 
Feb. 23, 2021, 10 a.m. 45.1 ppb (43) 20.8 ppb (20) N/A 24.0 ppb (23) N/A N/A 3.0 ppb (3) 0.8 ppb (10) N/A 8.1 μg/m3 (34) 43.0
 
Feb. 23, 2021, 9 a.m. 42.7 ppb (41) 15.7 ppb (15) N/A 27.0 ppb (26) N/A N/A 2.0 ppb (2) 0.83 ppb (10) N/A 4.6 μg/m3 (20) 41.0
 
Feb. 23, 2021, 8 a.m. 38.9 ppb (37) 10.4 ppb (10) N/A 29.0 ppb (28) N/A N/A 3.0 ppb (3) 0.71 ppb (8) N/A 2.6 μg/m3 (11) 37.0
 
Feb. 23, 2021, 7 a.m. 39.0 ppb (37) 9.3 ppb (9) N/A 30.0 ppb (29) N/A N/A 5.0 ppb (5) 0.58 ppb (7) N/A 5.1 μg/m3 (22) 37.0
 
Feb. 23, 2021, 6 a.m. 36.2 ppb (35) 5.2 ppb (5) N/A 31.0 ppb (30) N/A N/A 5.0 ppb (5) 0.66 ppb (8) N/A 6.9 μg/m3 (29) 35.0
 
Feb. 23, 2021, 5 a.m. 30.1 ppb (29) 1.4 ppb (2) N/A 29.0 ppb (28) N/A N/A 7.0 ppb (7) 0.57 ppb (7) N/A 5.4 μg/m3 (23) 29.0
 
Feb. 23, 2021, 4 a.m. 26.8 ppb (26) -0.2 ppb (0) N/A 27.0 ppb (26) N/A N/A 13.0 ppb (13) 0.55 ppb (7) N/A 5.1 μg/m3 (22) 26.0
 
Feb. 23, 2021, 3 a.m. 7.1 ppb (7) -0.9 ppb (0) N/A 8.0 ppb (8) N/A N/A 36.0 ppb (34) 0.26 ppb (4) N/A 2.9 μg/m3 (13) 34.0
 
Feb. 23, 2021, 2 a.m. 5.3 ppb (5) -0.7 ppb (0) N/A 6.0 ppb (6) N/A N/A 40.0 ppb (38) 0.22 ppb (3) N/A 0.7 μg/m3 (3) 38.0
 
Feb. 23, 2021, 1 a.m. 3.5 ppb (4) -0.8 ppb (0) N/A 4.0 ppb (4) N/A N/A 43.0 ppb (40) 0.2 ppb (3) N/A 0.0 μg/m3 (0) 40.0
 
Feb. 23, 2021, midnight 3.1 ppb (3) -0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 44.0 ppb (41) 0.2 ppb (3) N/A 1.9 μg/m3 (8) 41.0
 
Feb. 22, 2021, 11 p.m. 2.5 ppb (3) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (43) 0.18 ppb (3) N/A 2.7 μg/m3 (12) 43.0
 
Feb. 22, 2021, 10 p.m. 2.2 ppb (3) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (43) 0.18 ppb (3) N/A 1.9 μg/m3 (8) 43.0
 
Feb. 22, 2021, 9 p.m. 2.5 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 45.0 ppb (42) 0.18 ppb (3) N/A 1.2 μg/m3 (5) 42.0
 
Feb. 22, 2021, 8 p.m. 2.6 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (41) 0.19 ppb (3) N/A 3.7 μg/m3 (16) 41.0
 
Feb. 22, 2021, 7 p.m. 3.7 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (40) 0.19 ppb (3) N/A 5.9 μg/m3 (25) 40.0
 
Feb. 22, 2021, 6 p.m. 2.6 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (40) 0.17 ppb (3) N/A 1.9 μg/m3 (8) 40.0
 
Feb. 22, 2021, 5 p.m. 2.4 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (39) 0.17 ppb (3) N/A 0.6 μg/m3 (3) 39.0
 
Feb. 22, 2021, 4 p.m. 9.2 ppb (9) 2.0 ppb (2) N/A 7.0 ppb (7) N/A N/A 37.0 ppb (35) 0.25 ppb (3) N/A 4.3 μg/m3 (18) 35.0