ID: 1894

AQSQID: 060371302

Site Name: Compton

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

Updated: March 3, 2021, 10:32 a.m.

Location: Compton (E Compton), CA

Reporting: True, Located: True

Current AQI: 57.0

Compton (E Compton) CA, US: 33.9014, -118.205

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 3, 2021, 9 a.m. 39.6 ppb (38) 8.3 ppb (8) N/A 31.0 ppb (30) N/A N/A 0.0 ppb (0) 0.61 ppb (7) N/A 14.5 μg/m3 (57) 57.0
 
March 3, 2021, 8 a.m. 34.8 ppb (33) 2.6 ppb (3) N/A 32.0 ppb (31) N/A N/A 1.0 ppb (1) 0.55 ppb (7) N/A 9.2 μg/m3 (39) 39.0
 
March 3, 2021, 7 a.m. 31.4 ppb (30) 1.5 ppb (2) N/A 30.0 ppb (29) N/A N/A 5.0 ppb (5) 0.53 ppb (6) N/A 10.2 μg/m3 (43) 43.0
 
March 3, 2021, 6 a.m. 20.5 ppb (20) 1.0 ppb (1) N/A 20.0 ppb (19) N/A N/A 14.0 ppb (13) 0.34 ppb (4) N/A 11.7 μg/m3 (49) 49.0
 
March 3, 2021, 5 a.m. 12.5 ppb (12) 0.3 ppb (1) N/A 12.0 ppb (12) N/A N/A 24.0 ppb (23) 0.26 ppb (4) N/A 7.8 μg/m3 (33) 33.0
 
March 3, 2021, 4 a.m. 11.9 ppb (12) 0.3 ppb (1) N/A 12.0 ppb (12) N/A N/A 27.0 ppb (25) 0.27 ppb (4) N/A 8.5 μg/m3 (36) 36.0
 
March 3, 2021, 3 a.m. 10.5 ppb (10) 0.3 ppb (1) N/A 10.0 ppb (10) N/A N/A 29.0 ppb (27) 0.25 ppb (3) N/A 6.8 μg/m3 (29) 29.0
 
March 3, 2021, 2 a.m. 15.1 ppb (15) 0.2 ppb (1) N/A 15.0 ppb (15) N/A N/A 29.0 ppb (27) 0.3 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
March 3, 2021, 1 a.m. 13.4 ppb (13) 0.5 ppb (1) N/A 13.0 ppb (13) N/A N/A 31.0 ppb (29) 0.27 ppb (4) N/A 5.8 μg/m3 (25) 29.0
 
March 3, 2021, midnight 14.3 ppb (14) 1.5 ppb (2) N/A 13.0 ppb (13) N/A N/A 34.0 ppb (32) 0.23 ppb (3) N/A 5.9 μg/m3 (25) 32.0
 
March 2, 2021, 11 p.m. 12.3 ppb (12) 2.0 ppb (2) N/A 10.0 ppb (10) N/A N/A 35.0 ppb (33) 0.24 ppb (3) N/A 4.4 μg/m3 (19) 33.0
 
March 2, 2021, 10 p.m. 14.4 ppb (14) 3.2 ppb (4) N/A 11.0 ppb (11) N/A N/A 33.0 ppb (31) 0.23 ppb (3) N/A 0.7 μg/m3 (3) 31.0
 
March 2, 2021, 9 p.m. 9.3 ppb (9) 1.8 ppb (2) N/A 7.0 ppb (7) N/A N/A 41.0 ppb (38) 0.15 ppb (2) N/A -0.4 μg/m3 (0) 38.0
 
March 2, 2021, 8 p.m. 8.0 ppb (8) 1.6 ppb (2) N/A 6.0 ppb (6) N/A N/A 41.0 ppb (38) 0.17 ppb (3) N/A 1.9 μg/m3 (8) 38.0
 
March 2, 2021, 7 p.m. 14.7 ppb (14) 3.5 ppb (4) N/A 11.0 ppb (11) N/A N/A 36.0 ppb (34) 0.21 ppb (3) N/A 6.3 μg/m3 (27) 34.0
 
March 2, 2021, 6 p.m. 34.3 ppb (33) 11.5 ppb (11) N/A 23.0 ppb (22) N/A N/A 26.0 ppb (25) 0.36 ppb (5) N/A 10.5 μg/m3 (44) 44.0
 
March 2, 2021, 5 p.m. 66.1 ppb (64) 30.6 ppb (29) N/A 36.0 ppb (34) N/A N/A 13.0 ppb (13) 0.57 ppb (7) N/A 19.5 μg/m3 (67) 67.0
 
March 2, 2021, 4 p.m. 105.9 ppb (102) 63.5 ppb (62) N/A 43.0 ppb (41) N/A N/A 5.0 ppb (5) 0.96 ppb (12) N/A 15.2 μg/m3 (58) 102.0
 
March 2, 2021, 3 p.m. 162.0 ppb (113) 121.2 ppb (105) N/A 41.0 ppb (39) N/A N/A 0.0 ppb (0) 1.95 ppb (22) N/A 29.5 μg/m3 (88) 113.0
 
March 2, 2021, 2 p.m. 124.2 ppb (106) 88.1 ppb (88) N/A 36.0 ppb (34) N/A N/A 0.0 ppb (0) 1.59 ppb (19) N/A 12.6 μg/m3 (53) 106.0
 
March 2, 2021, 1 p.m. 104.7 ppb (102) 69.2 ppb (68) N/A 36.0 ppb (34) N/A N/A 0.0 ppb (0) 1.45 ppb (16) N/A 9.1 μg/m3 (38) 102.0
 
March 2, 2021, noon 101.5 ppb (102) 65.7 ppb (64) N/A 36.0 ppb (34) N/A N/A 0.0 ppb (0) 1.45 ppb (16) N/A 8.7 μg/m3 (37) 102.0
 
March 2, 2021, 11 a.m. 83.6 ppb (83) 44.3 ppb (42) N/A 40.0 ppb (38) N/A N/A 0.0 ppb (0) 1.22 ppb (14) N/A 15.7 μg/m3 (59) 83.0
 
March 2, 2021, 10 a.m. 95.3 ppb (95) 54.4 ppb (52) N/A 41.0 ppb (39) N/A N/A 0.0 ppb (0) 1.39 ppb (16) N/A 20.2 μg/m3 (69) 95.0
 
March 2, 2021, 9 a.m. 114.2 ppb (104) 70.9 ppb (70) N/A 44.0 ppb (42) N/A N/A 0.0 ppb (0) 1.67 ppb (20) N/A 22.7 μg/m3 (74) 104.0
 
March 2, 2021, 8 a.m. 117.1 ppb (105) 74.2 ppb (73) N/A 43.0 ppb (41) N/A N/A 0.0 ppb (0) 1.6 ppb (19) N/A 16.0 μg/m3 (60) 105.0
 
March 2, 2021, 7 a.m. 102.6 ppb (102) 58.9 ppb (57) N/A 44.0 ppb (42) N/A N/A 0.0 ppb (0) 1.66 ppb (20) N/A 15.1 μg/m3 (58) 102.0
 
March 2, 2021, 6 a.m. 94.3 ppb (94) 49.9 ppb (48) N/A 45.0 ppb (43) N/A N/A 0.0 ppb (0) 1.39 ppb (16) N/A 10.7 μg/m3 (45) 94.0
 
March 2, 2021, 5 a.m. 73.5 ppb (72) 29.0 ppb (28) N/A 45.0 ppb (43) N/A N/A 0.0 ppb (0) 1.28 ppb (15) N/A 14.3 μg/m3 (56) 72.0
 
March 2, 2021, 4 a.m. 50.9 ppb (49) 7.6 ppb (8) N/A 43.0 ppb (41) N/A N/A 3.0 ppb (3) 0.85 ppb (10) N/A 8.5 μg/m3 (36) 49.0
 
March 2, 2021, 3 a.m. 36.6 ppb (35) 1.0 ppb (1) N/A 36.0 ppb (34) N/A N/A 12.0 ppb (12) 0.6 ppb (7) N/A 5.1 μg/m3 (22) 35.0
 
March 2, 2021, 2 a.m. 17.3 ppb (17) 0.3 ppb (1) N/A 17.0 ppb (17) N/A N/A 27.0 ppb (25) 0.35 ppb (4) N/A 3.4 μg/m3 (15) 25.0
 
March 2, 2021, 1 a.m. 10.1 ppb (10) 0.2 ppb (1) N/A 10.0 ppb (10) N/A N/A 34.0 ppb (32) 0.23 ppb (3) N/A 0.2 μg/m3 (1) 32.0
 
March 2, 2021, midnight 11.5 ppb (11) 1.3 ppb (2) N/A 10.0 ppb (10) N/A N/A 34.0 ppb (32) 0.22 ppb (3) N/A 1.2 μg/m3 (5) 32.0
 
March 1, 2021, 11 p.m. 18.1 ppb (18) 3.3 ppb (4) N/A 15.0 ppb (15) N/A N/A 35.0 ppb (33) 0.19 ppb (3) N/A 3.7 μg/m3 (16) 33.0
 
March 1, 2021, 10 p.m. 20.8 ppb (20) 4.8 ppb (5) N/A 16.0 ppb (16) N/A N/A 33.0 ppb (31) 0.19 ppb (3) N/A 4.9 μg/m3 (21) 31.0
 
March 1, 2021, 9 p.m. 15.9 ppb (15) 3.8 ppb (4) N/A 12.0 ppb (12) N/A N/A 35.0 ppb (33) 0.19 ppb (3) N/A 2.4 μg/m3 (10) 33.0
 
March 1, 2021, 8 p.m. 7.8 ppb (8) 1.5 ppb (2) N/A 6.0 ppb (6) N/A N/A 39.0 ppb (37) 0.19 ppb (3) N/A 3.9 μg/m3 (17) 37.0
 
March 1, 2021, 7 p.m. 7.4 ppb (7) 1.6 ppb (2) N/A 6.0 ppb (6) N/A N/A 37.0 ppb (35) 0.17 ppb (3) N/A 6.6 μg/m3 (28) 35.0
 
March 1, 2021, 6 p.m. 12.6 ppb (12) 3.4 ppb (4) N/A 9.0 ppb (9) N/A N/A 32.0 ppb (30) 0.19 ppb (3) N/A 12.1 μg/m3 (51) 51.0
 
March 1, 2021, 5 p.m. 24.6 ppb (24) 7.8 ppb (8) N/A 17.0 ppb (17) N/A N/A 24.0 ppb (23) 0.29 ppb (4) N/A 14.1 μg/m3 (56) 56.0
 
March 1, 2021, 4 p.m. 41.8 ppb (40) 15.4 ppb (15) N/A 27.0 ppb (26) N/A N/A 15.0 ppb (14) 0.41 ppb (5) N/A 8.7 μg/m3 (37) 40.0
 
March 1, 2021, 3 p.m. 60.0 ppb (58) 24.6 ppb (24) N/A 36.0 ppb (34) N/A N/A 6.0 ppb (6) 0.56 ppb (7) N/A 12.4 μg/m3 (52) 58.0
 
March 1, 2021, 2 p.m. 48.2 ppb (46) 11.3 ppb (11) N/A 37.0 ppb (35) N/A N/A 1.0 ppb (1) 0.61 ppb (7) N/A 9.1 μg/m3 (38) 46.0
 
March 1, 2021, 1 p.m. 36.4 ppb (35) 4.0 ppb (4) N/A 33.0 ppb (32) N/A N/A 3.0 ppb (3) 0.47 ppb (6) N/A 9.2 μg/m3 (39) 39.0
 
March 1, 2021, noon 26.0 ppb (25) 1.0 ppb (1) N/A 25.0 ppb (24) N/A N/A 9.0 ppb (9) 0.34 ppb (4) N/A 7.2 μg/m3 (31) 31.0
 
March 1, 2021, 11 a.m. 20.5 ppb (20) 0.6 ppb (1) N/A 20.0 ppb (19) N/A N/A 13.0 ppb (13) 0.3 ppb (4) N/A 9.2 μg/m3 (39) 39.0
 
March 1, 2021, 10 a.m. 24.8 ppb (24) 1.2 ppb (2) N/A 24.0 ppb (23) N/A N/A 10.0 ppb (10) 0.39 ppb (5) N/A 7.0 μg/m3 (30) 30.0
 
March 1, 2021, 9 a.m. 29.2 ppb (28) 1.5 ppb (2) N/A 28.0 ppb (27) N/A N/A 7.0 ppb (7) 0.49 ppb (6) N/A 4.6 μg/m3 (20) 28.0
 
March 1, 2021, 8 a.m. 34.7 ppb (33) 4.5 ppb (5) N/A 30.0 ppb (29) N/A N/A 5.0 ppb (5) 0.63 ppb (7) N/A 7.3 μg/m3 (31) 33.0
 
March 1, 2021, 7 a.m. 31.2 ppb (30) 2.6 ppb (3) N/A 29.0 ppb (28) N/A N/A 9.0 ppb (9) 0.5 ppb (6) N/A 4.6 μg/m3 (20) 30.0
 
March 1, 2021, 6 a.m. 14.0 ppb (14) 0.8 ppb (1) N/A 13.0 ppb (13) N/A N/A 24.0 ppb (23) 0.33 ppb (4) N/A 4.9 μg/m3 (21) 23.0
 
March 1, 2021, 5 a.m. 27.0 ppb (26) 1.9 ppb (2) N/A 25.0 ppb (24) N/A N/A 15.0 ppb (14) 0.57 ppb (7) N/A 9.5 μg/m3 (40) 40.0
 
March 1, 2021, 4 a.m. 32.9 ppb (32) 2.0 ppb (2) N/A 31.0 ppb (30) N/A N/A 11.0 ppb (11) 0.65 ppb (8) N/A 11.7 μg/m3 (49) 49.0
 
March 1, 2021, 3 a.m. 36.7 ppb (35) 2.8 ppb (3) N/A 34.0 ppb (33) N/A N/A 11.0 ppb (11) 0.8 ppb (10) N/A 11.7 μg/m3 (49) 49.0
 
March 1, 2021, 2 a.m. 18.6 ppb (18) 0.6 ppb (1) N/A 18.0 ppb (17) N/A N/A 26.0 ppb (25) 0.49 ppb (6) N/A 8.3 μg/m3 (35) 35.0
 
March 1, 2021, 1 a.m. 7.7 ppb (8) 0.2 ppb (1) N/A 8.0 ppb (8) N/A N/A 37.0 ppb (35) 0.25 ppb (3) N/A 7.3 μg/m3 (31) 35.0
 
March 1, 2021, midnight 4.0 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (38) 0.19 ppb (3) N/A 6.6 μg/m3 (28) 38.0
 
Feb. 28, 2021, 11 p.m. 2.8 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (41) 0.15 ppb (2) N/A 5.6 μg/m3 (24) 41.0
 
Feb. 28, 2021, 10 p.m. 3.0 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (40) 0.15 ppb (2) N/A 5.4 μg/m3 (23) 40.0
 
Feb. 28, 2021, 9 p.m. 2.6 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (40) 0.14 ppb (2) N/A 5.6 μg/m3 (24) 40.0
 
Feb. 28, 2021, 8 p.m. 3.5 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 41.0 ppb (38) 0.15 ppb (2) N/A 7.6 μg/m3 (32) 38.0
 
Feb. 28, 2021, 7 p.m. 3.8 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (37) 0.15 ppb (2) N/A 10.3 μg/m3 (43) 43.0
 
Feb. 28, 2021, 6 p.m. 5.1 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (34) 0.16 ppb (3) N/A 12.2 μg/m3 (52) 52.0
 
Feb. 28, 2021, 5 p.m. 7.0 ppb (7) 1.6 ppb (2) N/A 5.0 ppb (5) N/A N/A 33.0 ppb (31) 0.17 ppb (3) N/A 11.5 μg/m3 (48) 48.0
 
Feb. 28, 2021, 4 p.m. 22.6 ppb (22) 7.5 ppb (8) N/A 15.0 ppb (15) N/A N/A 22.0 ppb (21) 0.38 ppb (5) N/A 13.3 μg/m3 (54) 54.0
 
Feb. 28, 2021, 3 p.m. 60.3 ppb (58) 30.8 ppb (30) N/A 30.0 ppb (29) N/A N/A 3.0 ppb (3) 0.89 ppb (11) N/A 22.7 μg/m3 (74) 74.0
 
Feb. 28, 2021, 2 p.m. 62.8 ppb (61) 35.2 ppb (34) N/A 28.0 ppb (27) N/A N/A 0.0 ppb (0) 1.06 ppb (13) N/A 21.1 μg/m3 (70) 70.0
 
Feb. 28, 2021, 1 p.m. 59.1 ppb (57) 33.2 ppb (32) N/A 26.0 ppb (25) N/A N/A 0.0 ppb (0) 1.06 ppb (13) N/A 24.4 μg/m3 (77) 77.0
 
Feb. 28, 2021, noon 51.0 ppb (49) 25.1 ppb (24) N/A 26.0 ppb (25) N/A N/A 0.0 ppb (0) 1.21 ppb (14) N/A 26.3 μg/m3 (81) 81.0
 
Feb. 28, 2021, 11 a.m. 39.3 ppb (38) 12.2 ppb (12) N/A 27.0 ppb (26) N/A N/A 0.0 ppb (0) 1.1 ppb (13) N/A 33.0 μg/m3 (95) 95.0
 
Feb. 28, 2021, 10 a.m. 37.8 ppb (36) 7.3 ppb (7) N/A 31.0 ppb (30) N/A N/A 0.0 ppb (0) 0.95 ppb (11) N/A 38.1 μg/m3 (108) 108.0
 
Feb. 28, 2021, 9 a.m. 42.9 ppb (41) 12.4 ppb (12) N/A 31.0 ppb (30) N/A N/A 0.0 ppb (0) 1.23 ppb (14) N/A 25.6 μg/m3 (80) 80.0
 
Feb. 28, 2021, 8 a.m. 42.0 ppb (40) 10.4 ppb (10) N/A 32.0 ppb (31) N/A N/A 0.0 ppb (0) 1.28 ppb (15) N/A 31.3 μg/m3 (92) 92.0
 
Feb. 28, 2021, 7 a.m. 35.5 ppb (34) 4.3 ppb (5) N/A 31.0 ppb (30) N/A N/A 2.0 ppb (2) 0.85 ppb (10) N/A 29.1 μg/m3 (87) 87.0
 
Feb. 28, 2021, 6 a.m. 32.5 ppb (31) 2.2 ppb (3) N/A 30.0 ppb (29) N/A N/A 5.0 ppb (5) 0.75 ppb (10) N/A 23.5 μg/m3 (75) 75.0
 
Feb. 28, 2021, 5 a.m. 25.7 ppb (25) 1.3 ppb (2) N/A 24.0 ppb (23) N/A N/A 10.0 ppb (10) 0.65 ppb (8) N/A 22.0 μg/m3 (72) 72.0
 
Feb. 28, 2021, 4 a.m. 12.9 ppb (13) 0.3 ppb (1) N/A 13.0 ppb (13) N/A N/A 25.0 ppb (24) 0.31 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
Feb. 28, 2021, 3 a.m. 14.4 ppb (14) 0.5 ppb (1) N/A 14.0 ppb (14) N/A N/A 25.0 ppb (24) 0.31 ppb (4) N/A 5.9 μg/m3 (25) 25.0
 
Feb. 28, 2021, 2 a.m. 12.2 ppb (12) 0.5 ppb (1) N/A 12.0 ppb (12) N/A N/A 28.0 ppb (26) 0.3 ppb (4) N/A 6.6 μg/m3 (28) 28.0
 
Feb. 28, 2021, 1 a.m. 8.9 ppb (9) 0.3 ppb (1) N/A 9.0 ppb (9) N/A N/A 31.0 ppb (29) 0.22 ppb (3) N/A 9.5 μg/m3 (40) 40.0
 
Feb. 28, 2021, midnight 5.5 ppb (6) 0.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (33) 0.17 ppb (3) N/A 8.3 μg/m3 (35) 35.0
 
Feb. 27, 2021, 11 p.m. 4.4 ppb (5) 0.4 ppb (1) N/A 4.0 ppb (4) N/A N/A 39.0 ppb (37) 0.15 ppb (2) N/A 7.1 μg/m3 (30) 37.0
 
Feb. 27, 2021, 10 p.m. 6.1 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 40.0 ppb (38) 0.16 ppb (3) N/A 7.8 μg/m3 (33) 38.0
 
Feb. 27, 2021, 9 p.m. 19.0 ppb (18) 4.7 ppb (5) N/A 14.0 ppb (14) N/A N/A 31.0 ppb (29) 0.23 ppb (3) N/A 15.5 μg/m3 (59) 59.0
 
Feb. 27, 2021, 8 p.m. 13.2 ppb (13) 2.9 ppb (3) N/A 10.0 ppb (10) N/A N/A 34.0 ppb (32) 0.25 ppb (3) N/A 12.6 μg/m3 (53) 53.0
 
Feb. 27, 2021, 7 p.m. 11.0 ppb (11) 2.4 ppb (3) N/A 9.0 ppb (9) N/A N/A 33.0 ppb (31) 0.25 ppb (3) N/A 14.1 μg/m3 (56) 56.0
 
Feb. 27, 2021, 6 p.m. 11.4 ppb (11) 2.6 ppb (3) N/A 9.0 ppb (9) N/A N/A 31.0 ppb (29) 0.25 ppb (3) N/A 20.3 μg/m3 (69) 69.0
 
Feb. 27, 2021, 5 p.m. 16.5 ppb (16) 4.3 ppb (5) N/A 12.0 ppb (12) N/A N/A 26.0 ppb (25) 0.28 ppb (4) N/A 14.8 μg/m3 (57) 57.0
 
Feb. 27, 2021, 4 p.m. 46.0 ppb (44) 20.6 ppb (20) N/A 26.0 ppb (25) N/A N/A 12.0 ppb (12) 0.53 ppb (6) N/A 19.2 μg/m3 (66) 66.0
 
Feb. 27, 2021, 3 p.m. 78.6 ppb (78) 46.5 ppb (44) N/A 32.0 ppb (31) N/A N/A 1.0 ppb (1) 1.14 ppb (13) N/A 16.7 μg/m3 (61) 78.0
 
Feb. 27, 2021, 2 p.m. 62.7 ppb (61) 35.5 ppb (34) N/A 27.0 ppb (26) N/A N/A 0.0 ppb (0) 1.03 ppb (12) N/A 13.4 μg/m3 (54) 61.0
 
Feb. 27, 2021, 1 p.m. 40.5 ppb (39) 11.6 ppb (11) N/A 29.0 ppb (28) N/A N/A 0.0 ppb (0) 0.6 ppb (7) N/A 11.9 μg/m3 (50) 50.0
 
Feb. 27, 2021, noon 46.0 ppb (44) 15.5 ppb (15) N/A 31.0 ppb (30) N/A N/A 0.0 ppb (0) 0.64 ppb (7) N/A 20.2 μg/m3 (69) 69.0
 
Feb. 27, 2021, 11 a.m. 51.1 ppb (49) 19.1 ppb (19) N/A 32.0 ppb (31) N/A N/A 0.0 ppb (0) 0.97 ppb (12) N/A 71.3 μg/m3 (160) 160.0
 
Feb. 27, 2021, 10 a.m. 52.1 ppb (50) 17.5 ppb (17) N/A 35.0 ppb (34) N/A N/A 0.0 ppb (0) 0.74 ppb (8) N/A 18.5 μg/m3 (65) 65.0
 
Feb. 27, 2021, 9 a.m. 78.1 ppb (77) 45.8 ppb (44) N/A 33.0 ppb (32) N/A N/A 0.0 ppb (0) 1.49 ppb (18) N/A 26.3 μg/m3 (81) 81.0
 
Feb. 27, 2021, 8 a.m. 75.7 ppb (75) 40.8 ppb (39) N/A 35.0 ppb (34) N/A N/A 0.0 ppb (0) 1.48 ppb (18) N/A 23.9 μg/m3 (76) 76.0
 
Feb. 27, 2021, 7 a.m. 57.4 ppb (55) 19.5 ppb (19) N/A 38.0 ppb (36) N/A N/A 0.0 ppb (0) 1.27 ppb (15) N/A 25.8 μg/m3 (80) 80.0
 
Feb. 27, 2021, 6 a.m. 55.8 ppb (53) 18.4 ppb (18) N/A 37.0 ppb (35) N/A N/A 0.0 ppb (0) 1.1 ppb (13) N/A 20.0 μg/m3 (68) 68.0
 
Feb. 27, 2021, 5 a.m. 31.8 ppb (30) 2.5 ppb (3) N/A 29.0 ppb (28) N/A N/A 7.0 ppb (7) 0.6 ppb (7) N/A 13.4 μg/m3 (54) 54.0
 
Feb. 27, 2021, 4 a.m. 19.5 ppb (19) 0.7 ppb (1) N/A 19.0 ppb (18) N/A N/A 19.0 ppb (18) 0.39 ppb (5) N/A 13.4 μg/m3 (54) 54.0
 
Feb. 27, 2021, 3 a.m. 17.9 ppb (17) 0.3 ppb (1) N/A 18.0 ppb (17) N/A N/A 25.0 ppb (24) 0.29 ppb (4) N/A 10.3 μg/m3 (43) 43.0
 
Feb. 27, 2021, 2 a.m. 17.5 ppb (17) 0.1 ppb (1) N/A 17.0 ppb (17) N/A N/A 28.0 ppb (26) 0.32 ppb (4) N/A 8.3 μg/m3 (35) 35.0
 
Feb. 27, 2021, 1 a.m. 15.6 ppb (15) 0.5 ppb (1) N/A 15.0 ppb (15) N/A N/A 31.0 ppb (29) 0.3 ppb (4) N/A 6.3 μg/m3 (27) 29.0
 
Feb. 27, 2021, midnight 9.1 ppb (9) 0.7 ppb (1) N/A 8.0 ppb (8) N/A N/A 37.0 ppb (35) 0.2 ppb (3) N/A 3.4 μg/m3 (15) 35.0
 
Feb. 26, 2021, 11 p.m. 9.1 ppb (9) 1.1 ppb (2) N/A 8.0 ppb (8) N/A N/A 40.0 ppb (38) 0.2 ppb (3) N/A 5.4 μg/m3 (23) 38.0
 
Feb. 26, 2021, 10 p.m. 20.6 ppb (20) 4.7 ppb (5) N/A 16.0 ppb (16) N/A N/A 33.0 ppb (31) 0.26 ppb (4) N/A 7.6 μg/m3 (32) 32.0
 
Feb. 26, 2021, 9 p.m. 41.1 ppb (39) 12.6 ppb (12) N/A 29.0 ppb (28) N/A N/A 26.0 ppb (25) 0.34 ppb (4) N/A 11.2 μg/m3 (47) 47.0
 
Feb. 26, 2021, 8 p.m. 29.0 ppb (28) 8.3 ppb (8) N/A 21.0 ppb (20) N/A N/A 30.0 ppb (28) 0.32 ppb (4) N/A 8.3 μg/m3 (35) 35.0
 
Feb. 26, 2021, 7 p.m. 26.4 ppb (25) 7.9 ppb (8) N/A 19.0 ppb (18) N/A N/A 28.0 ppb (26) 0.31 ppb (4) N/A 9.5 μg/m3 (40) 40.0
 
Feb. 26, 2021, 6 p.m. 53.3 ppb (51) 23.2 ppb (22) N/A 30.0 ppb (29) N/A N/A 17.0 ppb (16) 0.51 ppb (6) N/A 18.5 μg/m3 (65) 65.0
 
Feb. 26, 2021, 5 p.m. 100.0 ppb (100) 58.1 ppb (56) N/A 42.0 ppb (40) N/A N/A 5.0 ppb (5) 0.79 ppb (10) N/A 16.5 μg/m3 (61) 100.0
 
Feb. 26, 2021, 4 p.m. 149.8 ppb (111) 108.5 ppb (103) N/A 42.0 ppb (40) N/A N/A 1.0 ppb (1) 1.47 ppb (18) N/A 20.9 μg/m3 (70) 111.0
 
Feb. 26, 2021, 3 p.m. 163.1 ppb (113) 127.9 ppb (107) N/A 36.0 ppb (34) N/A N/A 0.0 ppb (0) 2.06 ppb (24) N/A 18.6 μg/m3 (65) 113.0
 
Feb. 26, 2021, 2 p.m. 142.5 ppb (109) 112.4 ppb (104) N/A 31.0 ppb (30) N/A N/A 0.0 ppb (0) 1.8 ppb (21) N/A 17.4 μg/m3 (63) 109.0
 
Feb. 26, 2021, 1 p.m. 121.2 ppb (105) 91.5 ppb (91) N/A 30.0 ppb (29) N/A N/A 0.0 ppb (0) 1.62 ppb (19) N/A 17.7 μg/m3 (63) 105.0
 
Feb. 26, 2021, noon 104.1 ppb (102) 72.4 ppb (71) N/A 32.0 ppb (31) N/A N/A 0.0 ppb (0) 1.4 ppb (16) N/A 21.4 μg/m3 (71) 102.0
 
Feb. 26, 2021, 11 a.m. 83.8 ppb (83) 50.4 ppb (48) N/A 34.0 ppb (33) N/A N/A 0.0 ppb (0) 0.97 ppb (12) N/A 11.6 μg/m3 (49) 83.0
 
Feb. 26, 2021, 10 a.m. 90.0 ppb (90) 53.4 ppb (51) N/A 37.0 ppb (35) N/A N/A 0.0 ppb (0) 0.99 ppb (12) N/A 16.5 μg/m3 (61) 90.0
 
Feb. 26, 2021, 9 a.m. 87.6 ppb (87) 52.6 ppb (50) N/A 35.0 ppb (34) N/A N/A 0.0 ppb (0) 1.27 ppb (15) N/A 21.0 μg/m3 (70) 87.0
 
Feb. 26, 2021, 8 a.m. 88.8 ppb (89) 54.8 ppb (52) N/A 34.0 ppb (33) N/A N/A 0.0 ppb (0) 1.59 ppb (19) N/A 26.1 μg/m3 (81) 89.0
 
Feb. 26, 2021, 7 a.m. 66.6 ppb (65) 27.9 ppb (27) N/A 39.0 ppb (37) N/A N/A 0.0 ppb (0) 1.22 ppb (14) N/A 19.5 μg/m3 (67) 67.0
 
Feb. 26, 2021, 6 a.m. 45.1 ppb (43) 8.7 ppb (9) N/A 36.0 ppb (34) N/A N/A 0.0 ppb (0) 0.89 ppb (11) N/A 19.0 μg/m3 (66) 66.0
 
Feb. 26, 2021, 5 a.m. 29.5 ppb (28) 3.6 ppb (4) N/A 26.0 ppb (25) N/A N/A 9.0 ppb (9) 0.69 ppb (8) N/A 15.8 μg/m3 (59) 59.0
 
Feb. 26, 2021, 4 a.m. 14.0 ppb (14) 0.3 ppb (1) N/A 14.0 ppb (14) N/A N/A 23.0 ppb (22) 0.28 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Feb. 26, 2021, 3 a.m. 11.4 ppb (11) 0.1 ppb (1) N/A 11.0 ppb (11) N/A N/A 29.0 ppb (27) 0.25 ppb (3) N/A 8.6 μg/m3 (36) 36.0
 
Feb. 26, 2021, 2 a.m. 9.8 ppb (10) 0.1 ppb (1) N/A 10.0 ppb (10) N/A N/A 32.0 ppb (30) 0.22 ppb (3) N/A 10.5 μg/m3 (44) 44.0
 
Feb. 26, 2021, 1 a.m. 9.1 ppb (9) 0.2 ppb (1) N/A 9.0 ppb (9) N/A N/A 36.0 ppb (34) 0.21 ppb (3) N/A 8.3 μg/m3 (35) 35.0
 
Feb. 26, 2021, midnight 9.4 ppb (9) 0.6 ppb (1) N/A 9.0 ppb (9) N/A N/A 44.0 ppb (41) 0.22 ppb (3) N/A 11.2 μg/m3 (47) 47.0
 
Feb. 25, 2021, 11 p.m. 7.8 ppb (8) 0.7 ppb (1) N/A 7.0 ppb (7) N/A N/A 47.0 ppb (44) 0.18 ppb (3) N/A 9.3 μg/m3 (39) 44.0
 
Feb. 25, 2021, 10 p.m. 8.2 ppb (8) 1.2 ppb (2) N/A 7.0 ppb (7) N/A N/A 45.0 ppb (42) 0.17 ppb (3) N/A 8.8 μg/m3 (37) 42.0
 
Feb. 25, 2021, 9 p.m. 8.8 ppb (9) 1.5 ppb (2) N/A 7.0 ppb (7) N/A N/A 43.0 ppb (40) 0.17 ppb (3) N/A 8.6 μg/m3 (36) 40.0
 
Feb. 25, 2021, 8 p.m. 9.7 ppb (10) 1.8 ppb (2) N/A 8.0 ppb (8) N/A N/A 41.0 ppb (38) 0.17 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Feb. 25, 2021, 7 p.m. 13.6 ppb (13) 3.0 ppb (3) N/A 11.0 ppb (11) N/A N/A 36.0 ppb (34) 0.21 ppb (3) N/A 9.5 μg/m3 (40) 40.0
 
Feb. 25, 2021, 6 p.m. 21.7 ppb (21) 6.0 ppb (6) N/A 16.0 ppb (16) N/A N/A 29.0 ppb (27) 0.28 ppb (4) N/A 20.7 μg/m3 (70) 70.0
 
Feb. 25, 2021, 5 p.m. 49.2 ppb (47) 20.8 ppb (20) N/A 28.0 ppb (27) N/A N/A 13.0 ppb (13) 0.53 ppb (6) N/A 28.1 μg/m3 (85) 85.0
 
Feb. 25, 2021, 4 p.m. 59.0 ppb (57) 29.6 ppb (28) N/A 30.0 ppb (29) N/A N/A 6.0 ppb (6) 0.67 ppb (8) N/A 25.8 μg/m3 (80) 80.0
 
Feb. 25, 2021, 3 p.m. 82.9 ppb (82) 54.4 ppb (52) N/A 29.0 ppb (28) N/A N/A 1.0 ppb (1) 1.13 ppb (13) N/A 17.2 μg/m3 (62) 82.0
 
Feb. 25, 2021, 2 p.m. 61.5 ppb (59) 33.7 ppb (32) N/A 28.0 ppb (27) N/A N/A 0.0 ppb (0) 0.85 ppb (10) N/A 11.4 μg/m3 (48) 59.0
 
Feb. 25, 2021, 1 p.m. 47.6 ppb (45) 22.3 ppb (22) N/A 25.0 ppb (24) N/A N/A 0.0 ppb (0) 0.8 ppb (10) N/A 9.9 μg/m3 (42) 45.0
 
Feb. 25, 2021, noon 32.1 ppb (31) 9.9 ppb (10) N/A 22.0 ppb (21) N/A N/A 0.0 ppb (0) 0.52 ppb (6) N/A 8.5 μg/m3 (36) 36.0
 
Feb. 25, 2021, 11 a.m. 19.7 ppb (19) 1.1 ppb (2) N/A 19.0 ppb (18) N/A N/A 5.0 ppb (5) 0.4 ppb (5) N/A 7.5 μg/m3 (32) 32.0
 
Feb. 25, 2021, 10 a.m. 18.0 ppb (17) 1.0 ppb (1) N/A 17.0 ppb (17) N/A N/A 8.0 ppb (8) 0.38 ppb (5) N/A 6.3 μg/m3 (27) 27.0
 
Feb. 25, 2021, 9 a.m. 11.3 ppb (11) 0.3 ppb (1) N/A 11.0 ppb (11) N/A N/A 15.0 ppb (14) 0.21 ppb (3) N/A 8.1 μg/m3 (34) 34.0
 
Feb. 25, 2021, 8 a.m. 4.3 ppb (5) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 25.0 ppb (24) 0.13 ppb (2) N/A 8.1 μg/m3 (34) 34.0
 
Feb. 25, 2021, 7 a.m. 5.1 ppb (5) 0.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 27.0 ppb (25) 0.12 ppb (2) N/A 7.1 μg/m3 (30) 30.0
 
Feb. 25, 2021, 6 a.m. 10.3 ppb (10) 0.3 ppb (1) N/A 10.0 ppb (10) N/A N/A 21.0 ppb (20) 0.17 ppb (3) N/A 8.3 μg/m3 (35) 35.0
 
Feb. 25, 2021, 5 a.m. 20.9 ppb (20) 0.8 ppb (1) N/A 20.0 ppb (19) N/A N/A 11.0 ppb (11) 0.26 ppb (4) N/A 10.5 μg/m3 (44) 44.0
 
Feb. 25, 2021, 4 a.m. 22.7 ppb (22) 1.0 ppb (1) N/A 22.0 ppb (21) N/A N/A 14.0 ppb (13) 0.42 ppb (5) N/A 11.3 μg/m3 (48) 48.0
 
Feb. 25, 2021, 3 a.m. 25.4 ppb (24) 0.7 ppb (1) N/A 25.0 ppb (24) N/A N/A 16.0 ppb (15) 0.51 ppb (6) N/A 17.8 μg/m3 (63) 63.0
 
Feb. 25, 2021, 2 a.m. 19.9 ppb (19) 0.5 ppb (1) N/A 19.0 ppb (18) N/A N/A 22.0 ppb (21) 0.44 ppb (5) N/A 9.1 μg/m3 (38) 38.0
 
Feb. 25, 2021, 1 a.m. 13.6 ppb (13) 0.4 ppb (1) N/A 13.0 ppb (13) N/A N/A 31.0 ppb (29) 0.29 ppb (4) N/A 9.8 μg/m3 (41) 41.0
 
Feb. 25, 2021, midnight 9.2 ppb (9) 1.0 ppb (1) N/A 8.0 ppb (8) N/A N/A 34.0 ppb (32) 0.22 ppb (3) N/A 9.3 μg/m3 (39) 39.0
 
Feb. 24, 2021, 11 p.m. 12.2 ppb (12) 2.0 ppb (2) N/A 10.0 ppb (10) N/A N/A 36.0 ppb (34) 0.17 ppb (3) N/A 4.6 μg/m3 (20) 34.0
 
Feb. 24, 2021, 10 p.m. 11.0 ppb (11) 1.9 ppb (2) N/A 9.0 ppb (9) N/A N/A 40.0 ppb (38) 0.16 ppb (3) N/A 5.1 μg/m3 (22) 38.0
 
Feb. 24, 2021, 9 p.m. 14.4 ppb (14) 2.9 ppb (3) N/A 12.0 ppb (12) N/A N/A 38.0 ppb (36) 0.21 ppb (3) N/A 7.3 μg/m3 (31) 36.0
 
Feb. 24, 2021, 8 p.m. 13.9 ppb (14) 2.6 ppb (3) N/A 11.0 ppb (11) N/A N/A 40.0 ppb (38) 0.21 ppb (3) N/A 8.1 μg/m3 (34) 38.0
 
Feb. 24, 2021, 7 p.m. 16.3 ppb (16) 3.3 ppb (4) N/A 13.0 ppb (13) N/A N/A 38.0 ppb (36) 0.28 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
Feb. 24, 2021, 6 p.m. 21.0 ppb (20) 5.0 ppb (5) N/A 16.0 ppb (16) N/A N/A 32.0 ppb (30) 0.3 ppb (4) N/A 11.3 μg/m3 (48) 48.0
 
Feb. 24, 2021, 5 p.m. 42.2 ppb (40) 14.2 ppb (14) N/A 28.0 ppb (27) N/A N/A 21.0 ppb (20) 0.47 ppb (6) N/A 15.3 μg/m3 (58) 58.0
 
Feb. 24, 2021, 4 p.m. 97.0 ppb (97) 54.5 ppb (52) N/A 43.0 ppb (41) N/A N/A 6.0 ppb (6) 0.86 ppb (11) N/A 27.6 μg/m3 (84) 97.0
 
Feb. 24, 2021, 3 p.m. 142.9 ppb (109) 100.8 ppb (101) N/A 43.0 ppb (41) N/A N/A 0.0 ppb (0) 1.44 ppb (16) N/A 22.4 μg/m3 (73) 109.0
 
Feb. 24, 2021, 2 p.m. 99.4 ppb (100) 68.5 ppb (67) N/A 31.0 ppb (30) N/A N/A 0.0 ppb (0) 1.14 ppb (13) N/A 14.8 μg/m3 (57) 100.0
 
Feb. 24, 2021, 1 p.m. 71.9 ppb (71) 46.0 ppb (44) N/A 26.0 ppb (25) N/A N/A 0.0 ppb (0) 1.0 ppb (12) N/A 13.8 μg/m3 (55) 71.0
 
Feb. 24, 2021, noon 62.3 ppb (60) 40.9 ppb (39) N/A 22.0 ppb (21) N/A N/A 0.0 ppb (0) 0.8 ppb (10) N/A 13.6 μg/m3 (55) 60.0
 
Feb. 24, 2021, 11 a.m. 37.9 ppb (36) 15.5 ppb (15) N/A 23.0 ppb (22) N/A N/A 0.0 ppb (0) 0.71 ppb (8) N/A 14.8 μg/m3 (57) 57.0
 
Feb. 24, 2021, 10 a.m. 31.8 ppb (30) 6.8 ppb (7) N/A 25.0 ppb (24) N/A N/A 0.0 ppb (0) 0.54 ppb (6) N/A 18.7 μg/m3 (65) 65.0