ID: 149

AQSQID: 060371103

Site Name: Los Angeles - N. Main Street

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

Updated: March 1, 2021, 6:33 p.m.

Location: Los Angeles (Central City E), CA

Reporting: True, Located: True

Current AQI: 32.0

Los Angeles (Central City E) CA, US: 34.066429, -118.226755

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 1, 2021, 5 p.m. 17.3 ppb (17) 5.2 ppb (5) 15.3 ppb (15) 12.0 ppb (12) 10.0 ppb (10) 0.0 ppb (0) 34.0 ppb (32) 0.28 ppb (4) 30.0 μg/m3 (28) 5.0 μg/m3 (21) 32.0
 
March 1, 2021, 4 p.m. 27.8 ppb (27) 9.0 ppb (9) 24.1 ppb (23) 19.0 ppb (18) 14.6 ppb (14) 0.0 ppb (0) 26.0 ppb (25) 0.34 ppb (4) 28.0 μg/m3 (26) 5.0 μg/m3 (21) 27.0
 
March 1, 2021, 3 p.m. 48.5 ppb (46) 19.0 ppb (18) 42.8 ppb (41) 30.0 ppb (29) 26.5 ppb (25) 0.0 ppb (0) 14.0 ppb (13) 0.46 ppb (6) 31.0 μg/m3 (29) 4.0 μg/m3 (17) 46.0
 
March 1, 2021, 2 p.m. 64.9 ppb (63) 27.3 ppb (26) 57.8 ppb (56) 38.0 ppb (36) 35.2 ppb (34) 0.0 ppb (0) 4.0 ppb (4) 0.51 ppb (6) 24.0 μg/m3 (23) 6.0 μg/m3 (25) 63.0
 
March 1, 2021, 1 p.m. 51.5 ppb (49) 14.6 ppb (14) 50.1 ppb (48) 37.0 ppb (35) 34.7 ppb (33) 0.0 ppb (0) 2.0 ppb (2) 0.49 ppb (6) 34.0 μg/m3 (32) 2.0 μg/m3 (9) 49.0
 
March 1, 2021, noon 44.6 ppb (43) 9.2 ppb (9) 41.0 ppb (39) 36.0 ppb (34) 33.2 ppb (32) 0.0 ppb (0) 4.0 ppb (4) 0.37 ppb (5) 21.0 μg/m3 (20) 3.0 μg/m3 (13) 43.0
 
March 1, 2021, 11 a.m. 50.7 ppb (48) 14.5 ppb (14) 45.2 ppb (43) 36.0 ppb (34) 34.2 ppb (33) 0.0 ppb (0) 1.0 ppb (1) 0.42 ppb (5) 21.0 μg/m3 (20) 6.0 μg/m3 (25) 48.0
 
March 1, 2021, 10 a.m. 46.2 ppb (44) 11.6 ppb (11) 44.0 ppb (42) 35.0 ppb (34) 34.1 ppb (33) 0.0 ppb (0) 1.0 ppb (1) 0.46 ppb (6) 30.0 μg/m3 (28) 11.0 μg/m3 (46) 46.0
 
March 1, 2021, 9 a.m. 53.9 ppb (51) 17.4 ppb (17) 46.4 ppb (44) 37.0 ppb (35) 33.7 ppb (32) 0.0 ppb (0) 2.0 ppb (2) 0.68 ppb (8) 31.0 μg/m3 (29) 10.0 μg/m3 (42) 51.0
 
March 1, 2021, 8 a.m. 53.9 ppb (51) 18.0 ppb (17) 43.2 ppb (41) 36.0 ppb (34) 34.8 ppb (33) 0.0 ppb (0) 3.0 ppb (3) 0.76 ppb (10) 27.0 μg/m3 (25) 9.0 μg/m3 (38) 51.0
 
March 1, 2021, 7 a.m. 30.0 ppb (29) 1.7 ppb (2) 29.0 ppb (28) 28.0 ppb (27) 28.0 ppb (27) 0.0 ppb (0) 11.0 ppb (11) 0.63 ppb (7) 31.0 μg/m3 (29) 10.0 μg/m3 (42) 42.0
 
March 1, 2021, 6 a.m. 43.5 ppb (42) 6.8 ppb (7) 42.8 ppb (41) 37.0 ppb (35) 37.2 ppb (36) 0.0 ppb (0) 4.0 ppb (4) 0.76 ppb (10) 40.0 μg/m3 (38) 15.0 μg/m3 (58) 58.0
 
March 1, 2021, 5 a.m. 53.0 ppb (50) 11.6 ppb (11) 51.0 ppb (49) 41.0 ppb (39) 41.4 ppb (40) 0.0 ppb (0) 2.0 ppb (2) 0.87 ppb (11) 40.0 μg/m3 (38) 12.0 μg/m3 (50) 50.0
 
March 1, 2021, 4 a.m. 54.4 ppb (52) 11.9 ppb (12) 57.1 ppb (55) 43.0 ppb (41) 43.4 ppb (41) 0.0 ppb (0) 3.0 ppb (3) 0.92 ppb (11) 34.0 μg/m3 (32) 10.0 μg/m3 (42) 55.0
 
March 1, 2021, 3 a.m. 29.1 ppb (28) 1.3 ppb (2) 26.0 ppb (25) 28.0 ppb (27) 25.3 ppb (24) 0.0 ppb (0) 19.0 ppb (18) 0.67 ppb (8) 26.0 μg/m3 (25) 6.0 μg/m3 (25) 28.0
 
March 1, 2021, 2 a.m. 14.1 ppb (14) 0.4 ppb (1) 12.9 ppb (13) 14.0 ppb (14) 12.7 ppb (12) 0.0 ppb (0) 39.0 ppb (37) 0.38 ppb (5) 22.0 μg/m3 (21) 3.0 μg/m3 (13) 37.0
 
March 1, 2021, 1 a.m. 7.8 ppb (8) 0.3 ppb (1) 7.5 ppb (8) 8.0 ppb (8) 7.3 ppb (7) 0.0 ppb (0) 47.0 ppb (44) 0.19 ppb (3) 24.0 μg/m3 (23) 3.0 μg/m3 (13) 44.0
 
March 1, 2021, midnight 5.9 ppb (6) 0.5 ppb (1) 5.6 ppb (6) 5.0 ppb (5) 5.1 ppb (5) 0.0 ppb (0) 53.0 ppb (50) 0.2 ppb (3) 36.0 μg/m3 (34) 5.0 μg/m3 (21) 50.0
 
Feb. 28, 2021, 11 p.m. 5.7 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 55.0 ppb (51) 0.22 ppb (3) 43.0 μg/m3 (40) 6.0 μg/m3 (25) 51.0
 
Feb. 28, 2021, 10 p.m. 6.1 ppb (6) 0.8 ppb (1) 5.6 ppb (6) 5.0 ppb (5) 4.6 ppb (5) 0.0 ppb (0) 54.0 ppb (50) 0.21 ppb (3) 52.0 μg/m3 (49) 6.0 μg/m3 (25) 50.0
 
Feb. 28, 2021, 9 p.m. 7.7 ppb (8) 1.3 ppb (2) 7.3 ppb (7) 6.0 ppb (6) 5.9 ppb (6) 0.0 ppb (0) 52.0 ppb (49) 0.22 ppb (3) 35.0 μg/m3 (33) 6.0 μg/m3 (25) 49.0
 
Feb. 28, 2021, 8 p.m. 8.3 ppb (8) 1.6 ppb (2) 8.0 ppb (8) 7.0 ppb (7) 6.3 ppb (6) 0.0 ppb (0) 49.0 ppb (46) 0.23 ppb (3) 36.0 μg/m3 (34) 7.0 μg/m3 (30) 46.0
 
Feb. 28, 2021, 7 p.m. 9.2 ppb (9) 1.9 ppb (2) 8.5 ppb (9) 7.0 ppb (7) 6.5 ppb (7) 0.0 ppb (0) 45.0 ppb (42) 0.23 ppb (3) 34.0 μg/m3 (32) 7.0 μg/m3 (30) 42.0
 
Feb. 28, 2021, 6 p.m. 13.9 ppb (14) 3.2 ppb (4) 13.3 ppb (13) 11.0 ppb (11) 9.8 ppb (10) 0.0 ppb (0) 40.0 ppb (38) 0.25 ppb (3) 35.0 μg/m3 (33) 9.0 μg/m3 (38) 38.0
 
Feb. 28, 2021, 5 p.m. 29.1 ppb (28) 9.1 ppb (9) 27.4 ppb (26) 20.0 ppb (19) 18.6 ppb (18) 0.0 ppb (0) 29.0 ppb (27) 0.43 ppb (5) 41.0 μg/m3 (38) 13.0 μg/m3 (53) 53.0
 
Feb. 28, 2021, 4 p.m. 40.6 ppb (39) 16.3 ppb (16) 38.1 ppb (36) 24.0 ppb (23) 22.6 ppb (22) 0.0 ppb (0) 16.0 ppb (15) 0.51 ppb (6) 41.0 μg/m3 (38) 15.0 μg/m3 (58) 58.0
 
Feb. 28, 2021, 3 p.m. 62.6 ppb (61) 34.3 ppb (33) 58.9 ppb (57) 29.0 ppb (28) 27.1 ppb (26) 0.0 ppb (0) 4.0 ppb (4) 0.78 ppb (10) 42.0 μg/m3 (39) 15.0 μg/m3 (58) 61.0
 
Feb. 28, 2021, 2 p.m. 26.9 ppb (26) 4.0 ppb (4) 26.2 ppb (25) 23.0 ppb (22) 22.1 ppb (21) 0.0 ppb (0) 8.0 ppb (8) 0.48 ppb (6) 29.0 μg/m3 (27) 14.0 μg/m3 (55) 55.0
 
Feb. 28, 2021, 1 p.m. 22.7 ppb (22) 1.7 ppb (2) 20.5 ppb (20) 21.0 ppb (20) 19.2 ppb (19) 0.0 ppb (0) 12.0 ppb (12) 0.2 ppb (3) 27.0 μg/m3 (25) 13.0 μg/m3 (53) 53.0
 
Feb. 28, 2021, noon 19.4 ppb (19) 0.8 ppb (1) 18.1 ppb (18) 19.0 ppb (18) 18.0 ppb (17) 0.0 ppb (0) 13.0 ppb (13) 0.16 ppb (3) 31.0 μg/m3 (29) 12.0 μg/m3 (50) 50.0
 
Feb. 28, 2021, 11 a.m. 27.6 ppb (27) 1.3 ppb (2) 23.2 ppb (22) 26.0 ppb (25) 22.3 ppb (22) 0.0 ppb (0) 7.0 ppb (7) 0.34 ppb (4) 32.0 μg/m3 (30) 17.0 μg/m3 (62) 62.0
 
Feb. 28, 2021, 10 a.m. 28.9 ppb (28) 1.5 ppb (2) 27.5 ppb (26) 27.0 ppb (26) 26.5 ppb (25) 0.0 ppb (0) 8.0 ppb (8) 0.37 ppb (5) 35.0 μg/m3 (33) 20.0 μg/m3 (68) 68.0
 
Feb. 28, 2021, 9 a.m. 24.8 ppb (24) 0.8 ppb (1) 24.7 ppb (24) 24.0 ppb (23) 23.1 ppb (22) 0.0 ppb (0) 12.0 ppb (12) 0.41 ppb (5) 33.0 μg/m3 (31) 15.0 μg/m3 (58) 58.0
 
Feb. 28, 2021, 8 a.m. 28.4 ppb (27) 1.4 ppb (2) 28.8 ppb (28) 27.0 ppb (26) 28.1 ppb (27) 0.0 ppb (0) 10.0 ppb (10) 0.46 ppb (6) 40.0 μg/m3 (38) 21.0 μg/m3 (70) 70.0
 
Feb. 28, 2021, 7 a.m. 34.8 ppb (33) 1.6 ppb (2) 32.3 ppb (31) 33.0 ppb (32) 31.6 ppb (30) 0.0 ppb (0) 6.0 ppb (6) 0.4 ppb (5) 37.0 μg/m3 (35) 17.0 μg/m3 (62) 62.0
 
Feb. 28, 2021, 6 a.m. 22.9 ppb (22) 0.6 ppb (1) 23.5 ppb (23) 22.0 ppb (21) 23.2 ppb (22) 0.0 ppb (0) 17.0 ppb (16) 0.27 ppb (4) 40.0 μg/m3 (38) 13.0 μg/m3 (53) 53.0
 
Feb. 28, 2021, 5 a.m. 15.0 ppb (15) 1.6 ppb (2) 20.6 ppb (20) 13.0 ppb (13) 17.0 ppb (17) 0.0 ppb (0) 30.0 ppb (28) 0.28 ppb (4) 30.0 μg/m3 (28) 6.0 μg/m3 (25) 28.0
 
Feb. 28, 2021, 4 a.m. 5.8 ppb (6) 0.2 ppb (1) 5.0 ppb (5) 6.0 ppb (6) 4.9 ppb (5) 0.0 ppb (0) 41.0 ppb (38) 0.18 ppb (3) 34.0 μg/m3 (32) 0.0 μg/m3 (0) 38.0
 
Feb. 28, 2021, 3 a.m. 4.6 ppb (5) 0.1 ppb (1) 3.9 ppb (4) 5.0 ppb (5) 3.8 ppb (4) 0.0 ppb (0) 43.0 ppb (40) 0.2 ppb (3) 29.0 μg/m3 (27) -2.0 μg/m3 (0) 40.0
 
Feb. 28, 2021, 2 a.m. 5.4 ppb (6) 0.3 ppb (1) 4.4 ppb (5) 5.0 ppb (5) 4.1 ppb (4) 0.0 ppb (0) 43.0 ppb (40) 0.2 ppb (3) 41.0 μg/m3 (38) 2.0 μg/m3 (9) 40.0
 
Feb. 28, 2021, 1 a.m. 4.6 ppb (5) 0.3 ppb (1) 4.2 ppb (4) 4.0 ppb (4) 4.0 ppb (4) 0.0 ppb (0) 46.0 ppb (43) 0.17 ppb (3) 30.0 μg/m3 (28) 6.0 μg/m3 (25) 43.0
 
Feb. 28, 2021, midnight 9.6 ppb (10) 0.9 ppb (1) 8.7 ppb (9) 9.0 ppb (9) 7.7 ppb (8) 0.0 ppb (0) 45.0 ppb (42) 0.23 ppb (3) 30.0 μg/m3 (28) 6.0 μg/m3 (25) 42.0
 
Feb. 27, 2021, 11 p.m. 8.0 ppb (8) 1.2 ppb (2) 7.7 ppb (8) 7.0 ppb (7) 6.5 ppb (7) 0.0 ppb (0) 48.0 ppb (45) 0.19 ppb (3) 35.0 μg/m3 (33) 7.0 μg/m3 (30) 45.0
 
Feb. 27, 2021, 10 p.m. 11.2 ppb (11) 1.9 ppb (2) 10.0 ppb (10) 9.0 ppb (9) 8.1 ppb (8) 0.0 ppb (0) 48.0 ppb (45) 0.23 ppb (3) 39.0 μg/m3 (37) 11.0 μg/m3 (46) 46.0
 
Feb. 27, 2021, 9 p.m. 16.6 ppb (16) 3.1 ppb (3) 15.7 ppb (15) 14.0 ppb (14) 12.4 ppb (12) 1.0 ppb (2) 47.0 ppb (44) 0.33 ppb (4) 42.0 μg/m3 (39) 13.0 μg/m3 (53) 53.0
 
Feb. 27, 2021, 8 p.m. 17.1 ppb (17) 3.7 ppb (4) 16.3 ppb (16) 14.0 ppb (14) 12.6 ppb (12) 0.0 ppb (0) 43.0 ppb (40) 0.32 ppb (4) 40.0 μg/m3 (38) 15.0 μg/m3 (58) 58.0
 
Feb. 27, 2021, 7 p.m. 16.4 ppb (16) 3.8 ppb (4) 16.1 ppb (16) 13.0 ppb (13) 12.2 ppb (12) 0.0 ppb (0) 41.0 ppb (38) 0.31 ppb (4) 39.0 μg/m3 (37) 15.0 μg/m3 (58) 58.0
 
Feb. 27, 2021, 6 p.m. 17.7 ppb (17) 4.7 ppb (5) 16.6 ppb (16) 13.0 ppb (13) 12.1 ppb (12) 0.0 ppb (0) 36.0 ppb (34) 0.28 ppb (4) 43.0 μg/m3 (40) 13.0 μg/m3 (53) 53.0
 
Feb. 27, 2021, 5 p.m. 18.4 ppb (18) 4.8 ppb (5) 17.2 ppb (17) 14.0 ppb (14) 12.6 ppb (12) 0.0 ppb (0) 32.0 ppb (30) 0.27 ppb (4) 45.0 μg/m3 (42) 17.0 μg/m3 (62) 62.0
 
Feb. 27, 2021, 4 p.m. 16.7 ppb (16) 4.0 ppb (4) 15.3 ppb (15) 13.0 ppb (13) 11.4 ppb (11) 0.0 ppb (0) 29.0 ppb (27) 0.26 ppb (4) 39.0 μg/m3 (37) 16.0 μg/m3 (60) 60.0
 
Feb. 27, 2021, 3 p.m. 32.2 ppb (31) 9.0 ppb (9) 29.2 ppb (28) 23.0 ppb (22) 21.3 ppb (21) 0.0 ppb (0) 15.0 ppb (14) 0.43 ppb (5) 53.0 μg/m3 (50) 18.0 μg/m3 (64) 64.0
 
Feb. 27, 2021, 2 p.m. 57.1 ppb (55) 23.7 ppb (23) 52.5 ppb (50) 34.0 ppb (33) 32.9 ppb (32) 0.0 ppb (0) 2.0 ppb (2) 0.59 ppb (7) 40.0 μg/m3 (38) 15.0 μg/m3 (58) 58.0
 
Feb. 27, 2021, 1 p.m. 41.6 ppb (40) 6.1 ppb (6) 39.7 ppb (38) 36.0 ppb (34) 32.5 ppb (31) 0.0 ppb (0) 2.0 ppb (2) 0.44 ppb (5) 40.0 μg/m3 (38) 16.0 μg/m3 (60) 60.0
 
Feb. 27, 2021, noon 38.0 ppb (36) 4.7 ppb (5) 39.1 ppb (37) 33.0 ppb (32) 32.5 ppb (31) 0.0 ppb (0) 2.0 ppb (2) 0.4 ppb (5) 38.0 μg/m3 (36) 20.0 μg/m3 (68) 68.0
 
Feb. 27, 2021, 11 a.m. 49.2 ppb (47) 13.9 ppb (14) 39.2 ppb (37) 35.0 ppb (34) 31.2 ppb (30) 0.0 ppb (0) 1.0 ppb (1) 0.54 ppb (6) 42.0 μg/m3 (39) 21.0 μg/m3 (70) 70.0
 
Feb. 27, 2021, 10 a.m. 73.9 ppb (73) 35.6 ppb (34) 68.1 ppb (67) 39.0 ppb (37) 38.0 ppb (36) 0.0 ppb (0) 1.0 ppb (1) 0.76 ppb (10) 44.0 μg/m3 (41) 22.0 μg/m3 (72) 73.0
 
Feb. 27, 2021, 9 a.m. 66.5 ppb (65) 26.4 ppb (25) 61.0 ppb (59) 40.0 ppb (38) 37.1 ppb (35) 1.0 ppb (2) 1.0 ppb (1) 0.74 ppb (8) 49.0 μg/m3 (46) 21.0 μg/m3 (70) 70.0
 
Feb. 27, 2021, 8 a.m. 66.7 ppb (65) 24.6 ppb (24) 65.1 ppb (63) 42.0 ppb (40) 43.2 ppb (41) 0.0 ppb (0) 1.0 ppb (1) 0.89 ppb (11) 49.0 μg/m3 (46) 19.0 μg/m3 (66) 66.0
 
Feb. 27, 2021, 7 a.m. 65.6 ppb (64) 21.7 ppb (21) 66.5 ppb (65) 44.0 ppb (42) 45.1 ppb (43) 0.0 ppb (0) 1.0 ppb (1) 0.96 ppb (12) 50.0 μg/m3 (47) 18.0 μg/m3 (64) 65.0
 
Feb. 27, 2021, 6 a.m. 55.2 ppb (53) 13.4 ppb (13) 53.5 ppb (51) 42.0 ppb (40) 42.4 ppb (40) 0.0 ppb (0) 1.0 ppb (1) 0.82 ppb (10) 49.0 μg/m3 (46) 18.0 μg/m3 (64) 64.0
 
Feb. 27, 2021, 5 a.m. 41.6 ppb (40) 4.6 ppb (5) 43.8 ppb (42) 37.0 ppb (35) 38.4 ppb (37) 0.0 ppb (0) 7.0 ppb (7) 0.57 ppb (7) 43.0 μg/m3 (40) 10.0 μg/m3 (42) 42.0
 
Feb. 27, 2021, 4 a.m. 39.0 ppb (37) 3.6 ppb (4) 36.6 ppb (35) 35.0 ppb (34) 34.0 ppb (33) 0.0 ppb (0) 10.0 ppb (10) 0.48 ppb (6) 43.0 μg/m3 (40) 14.0 μg/m3 (55) 55.0
 
Feb. 27, 2021, 3 a.m. 28.0 ppb (27) 0.6 ppb (1) 26.5 ppb (25) 27.0 ppb (26) 26.3 ppb (25) 0.0 ppb (0) 23.0 ppb (22) 0.34 ppb (4) 40.0 μg/m3 (38) 8.0 μg/m3 (34) 38.0
 
Feb. 27, 2021, 2 a.m. 25.9 ppb (25) 0.7 ppb (1) 24.8 ppb (24) 25.0 ppb (24) 24.5 ppb (24) 0.0 ppb (0) 26.0 ppb (25) 0.28 ppb (4) 34.0 μg/m3 (32) 6.0 μg/m3 (25) 32.0
 
Feb. 27, 2021, 1 a.m. 14.9 ppb (15) 0.5 ppb (1) 14.2 ppb (14) 14.0 ppb (14) 13.7 ppb (13) 0.0 ppb (0) 41.0 ppb (38) 0.33 ppb (4) 27.0 μg/m3 (25) 8.0 μg/m3 (34) 38.0
 
Feb. 27, 2021, midnight 13.7 ppb (13) 1.2 ppb (2) 13.1 ppb (13) 12.0 ppb (12) 11.7 ppb (12) 0.0 ppb (0) 48.0 ppb (45) 0.31 ppb (4) 33.0 μg/m3 (31) 13.0 μg/m3 (53) 53.0
 
Feb. 26, 2021, 11 p.m. 17.4 ppb (17) 2.7 ppb (3) 16.2 ppb (16) 15.0 ppb (15) 13.4 ppb (13) 0.0 ppb (0) 46.0 ppb (43) 0.32 ppb (4) 38.0 μg/m3 (36) 12.0 μg/m3 (50) 50.0
 
Feb. 26, 2021, 10 p.m. 27.7 ppb (27) 6.0 ppb (6) 26.3 ppb (25) 22.0 ppb (21) 20.2 ppb (20) 1.0 ppb (2) 40.0 ppb (38) 0.42 ppb (5) 51.0 μg/m3 (48) 14.0 μg/m3 (55) 55.0
 
Feb. 26, 2021, 9 p.m. 25.5 ppb (25) 5.7 ppb (6) 25.3 ppb (24) 20.0 ppb (19) 19.1 ppb (19) 1.0 ppb (2) 43.0 ppb (40) 0.3 ppb (4) 44.0 μg/m3 (41) 12.0 μg/m3 (50) 50.0
 
Feb. 26, 2021, 8 p.m. 30.1 ppb (29) 7.6 ppb (8) 29.3 ppb (28) 23.0 ppb (22) 21.2 ppb (20) 0.0 ppb (0) 38.0 ppb (36) 0.25 ppb (3) 45.0 μg/m3 (42) 11.0 μg/m3 (46) 46.0
 
Feb. 26, 2021, 7 p.m. 26.6 ppb (26) 7.3 ppb (7) 26.3 ppb (25) 19.0 ppb (18) 18.5 ppb (18) 0.0 ppb (0) 35.0 ppb (33) 0.26 ppb (4) 38.0 μg/m3 (36) 8.0 μg/m3 (34) 36.0
 
Feb. 26, 2021, 6 p.m. 22.9 ppb (22) 6.6 ppb (7) 21.7 ppb (21) 16.0 ppb (16) 14.9 ppb (15) 0.0 ppb (0) 33.0 ppb (31) 0.2 ppb (3) 35.0 μg/m3 (33) 5.0 μg/m3 (21) 33.0
 
Feb. 26, 2021, 5 p.m. 40.6 ppb (39) 16.9 ppb (16) 38.4 ppb (37) 24.0 ppb (23) 22.0 ppb (21) 1.0 ppb (2) 22.0 ppb (21) 0.43 ppb (5) 34.0 μg/m3 (32) 7.0 μg/m3 (30) 39.0
 
Feb. 26, 2021, 4 p.m. 75.9 ppb (75) 40.8 ppb (39) 72.3 ppb (71) 35.0 ppb (34) 33.5 ppb (32) 0.0 ppb (0) 9.0 ppb (9) 0.6 ppb (7) 36.0 μg/m3 (34) 11.0 μg/m3 (46) 75.0
 
Feb. 26, 2021, 3 p.m. 125.9 ppb (106) 85.9 ppb (85) 123.2 ppb (106) 40.0 ppb (38) 39.8 ppb (38) 1.0 ppb (2) 3.0 ppb (3) 0.82 ppb (10) 51.0 μg/m3 (48) 14.0 μg/m3 (55) 106.0
 
Feb. 26, 2021, 2 p.m. 100.7 ppb (101) 62.1 ppb (60) 99.6 ppb (100) 39.0 ppb (37) 38.2 ppb (37) 1.0 ppb (2) 1.0 ppb (1) 0.72 ppb (8) 44.0 μg/m3 (41) 11.0 μg/m3 (46) 101.0
 
Feb. 26, 2021, 1 p.m. 79.4 ppb (79) 41.1 ppb (39) 78.9 ppb (78) 39.0 ppb (37) 35.5 ppb (34) 0.0 ppb (0) 1.0 ppb (1) 0.4 ppb (5) 39.0 μg/m3 (37) 7.0 μg/m3 (30) 79.0
 
Feb. 26, 2021, noon 57.0 ppb (55) 20.6 ppb (20) 58.2 ppb (56) 37.0 ppb (35) 36.6 ppb (35) 0.0 ppb (0) 1.0 ppb (1) 0.28 ppb (4) 36.0 μg/m3 (34) 6.0 μg/m3 (25) 56.0
 
Feb. 26, 2021, 11 a.m. 27.9 ppb (27) 2.8 ppb (3) 32.3 ppb (31) 25.0 ppb (24) 26.3 ppb (25) 0.0 ppb (0) 11.0 ppb (11) 0.19 ppb (3) 25.0 μg/m3 (24) 6.0 μg/m3 (25) 31.0
 
Feb. 26, 2021, 10 a.m. 51.7 ppb (49) 15.7 ppb (15) 52.8 ppb (50) 36.0 ppb (34) 36.2 ppb (35) 0.0 ppb (0) 2.0 ppb (2) 0.3 ppb (4) 33.0 μg/m3 (31) 8.0 μg/m3 (34) 50.0
 
Feb. 26, 2021, 9 a.m. 43.3 ppb (41) 8.2 ppb (8) 40.0 ppb (38) 35.0 ppb (34) 33.9 ppb (32) 0.0 ppb (0) 4.0 ppb (4) 0.48 ppb (6) 33.0 μg/m3 (31) 10.0 μg/m3 (42) 42.0
 
Feb. 26, 2021, 8 a.m. 35.2 ppb (34) 3.2 ppb (4) 37.9 ppb (36) 32.0 ppb (31) 34.9 ppb (33) 0.0 ppb (0) 5.0 ppb (5) 0.5 ppb (6) 33.0 μg/m3 (31) 9.0 μg/m3 (38) 38.0
 
Feb. 26, 2021, 7 a.m. 45.8 ppb (44) 7.1 ppb (7) 45.3 ppb (43) 39.0 ppb (37) 39.0 ppb (37) 0.0 ppb (0) 2.0 ppb (2) 0.6 ppb (7) 41.0 μg/m3 (38) 10.0 μg/m3 (42) 44.0
 
Feb. 26, 2021, 6 a.m. 53.0 ppb (50) 11.8 ppb (12) 51.4 ppb (49) 41.0 ppb (39) 41.6 ppb (40) 0.0 ppb (0) 2.0 ppb (2) 0.63 ppb (7) 43.0 μg/m3 (40) 15.0 μg/m3 (58) 58.0
 
Feb. 26, 2021, 5 a.m. 66.2 ppb (64) 21.0 ppb (20) 64.2 ppb (62) 45.0 ppb (43) 45.5 ppb (43) 0.0 ppb (0) 2.0 ppb (2) 0.78 ppb (10) 56.0 μg/m3 (52) 11.0 μg/m3 (46) 64.0
 
Feb. 26, 2021, 4 a.m. 57.2 ppb (55) 12.5 ppb (12) 56.0 ppb (54) 45.0 ppb (43) 44.7 ppb (43) 0.0 ppb (0) 2.0 ppb (2) 0.8 ppb (10) 48.0 μg/m3 (45) 11.0 μg/m3 (46) 55.0
 
Feb. 26, 2021, 3 a.m. 43.8 ppb (42) 4.1 ppb (4) 43.2 ppb (41) 40.0 ppb (38) 39.9 ppb (38) 0.0 ppb (0) 9.0 ppb (9) 0.57 ppb (7) 37.0 μg/m3 (35) 7.0 μg/m3 (30) 42.0
 
Feb. 26, 2021, 2 a.m. 18.6 ppb (18) 0.3 ppb (1) 18.2 ppb (18) 18.0 ppb (17) 18.0 ppb (17) 0.0 ppb (0) 35.0 ppb (33) 0.33 ppb (4) 35.0 μg/m3 (33) 5.0 μg/m3 (21) 33.0
 
Feb. 26, 2021, 1 a.m. 17.1 ppb (17) 1.1 ppb (2) 16.1 ppb (16) 16.0 ppb (16) 15.2 ppb (15) 0.0 ppb (0) 43.0 ppb (40) 0.27 ppb (4) 49.0 μg/m3 (46) 7.0 μg/m3 (30) 46.0
 
Feb. 26, 2021, midnight 16.6 ppb (16) 1.6 ppb (2) 16.5 ppb (16) 15.0 ppb (15) 14.9 ppb (15) 0.0 ppb (0) 51.0 ppb (48) 0.26 ppb (4) 64.0 μg/m3 (56) 12.0 μg/m3 (50) 56.0
 
Feb. 25, 2021, 11 p.m. 13.3 ppb (13) 1.6 ppb (2) 13.3 ppb (13) 12.0 ppb (12) 11.5 ppb (11) 0.0 ppb (0) 55.0 ppb (51) 0.25 ppb (3) 64.0 μg/m3 (56) 12.0 μg/m3 (50) 56.0
 
Feb. 25, 2021, 10 p.m. 14.2 ppb (14) 2.1 ppb (2) 14.4 ppb (14) 12.0 ppb (12) 12.0 ppb (12) 0.0 ppb (0) 52.0 ppb (49) 0.24 ppb (3) 67.0 μg/m3 (57) 16.0 μg/m3 (60) 60.0
 
Feb. 25, 2021, 9 p.m. 21.1 ppb (20) 4.0 ppb (4) 20.7 ppb (20) 17.0 ppb (17) 16.5 ppb (16) 0.0 ppb (0) 47.0 ppb (44) 0.29 ppb (4) 78.0 μg/m3 (63) 14.0 μg/m3 (55) 63.0
 
Feb. 25, 2021, 8 p.m. 26.6 ppb (26) 6.3 ppb (6) 26.5 ppb (25) 20.0 ppb (19) 19.4 ppb (19) 0.0 ppb (0) 39.0 ppb (37) 0.3 ppb (4) 90.0 μg/m3 (69) 20.0 μg/m3 (68) 69.0
 
Feb. 25, 2021, 7 p.m. 25.6 ppb (25) 6.8 ppb (7) 25.0 ppb (24) 19.0 ppb (18) 18.3 ppb (18) 0.0 ppb (0) 35.0 ppb (33) 0.34 ppb (4) 87.0 μg/m3 (67) 16.0 μg/m3 (60) 67.0
 
Feb. 25, 2021, 6 p.m. 36.1 ppb (35) 11.4 ppb (11) 35.5 ppb (34) 25.0 ppb (24) 24.1 ppb (23) 0.0 ppb (0) 27.0 ppb (25) 0.42 ppb (5) 87.0 μg/m3 (67) 19.0 μg/m3 (66) 67.0
 
Feb. 25, 2021, 5 p.m. 31.0 ppb (30) 9.1 ppb (9) 31.0 ppb (30) 22.0 ppb (21) 21.6 ppb (21) 0.0 ppb (0) 28.0 ppb (26) 0.47 ppb (6) 79.0 μg/m3 (63) 15.0 μg/m3 (58) 63.0
 
Feb. 25, 2021, 4 p.m. 54.3 ppb (52) 25.5 ppb (25) 51.3 ppb (49) 29.0 ppb (28) 27.7 ppb (27) 0.0 ppb (0) 10.0 ppb (10) 0.69 ppb (8) 57.0 μg/m3 (52) 24.0 μg/m3 (77) 77.0
 
Feb. 25, 2021, 3 p.m. 74.4 ppb (73) 45.7 ppb (44) 67.5 ppb (66) 29.0 ppb (28) 25.4 ppb (24) 0.0 ppb (0) 2.0 ppb (2) 0.79 ppb (10) 38.0 μg/m3 (36) 17.0 μg/m3 (62) 73.0
 
Feb. 25, 2021, 2 p.m. 43.9 ppb (42) 16.2 ppb (16) 40.0 ppb (38) 28.0 ppb (27) 24.4 ppb (24) 0.0 ppb (0) 1.0 ppb (1) 0.64 ppb (7) 33.0 μg/m3 (31) 24.0 μg/m3 (77) 77.0
 
Feb. 25, 2021, 1 p.m. 37.7 ppb (36) 11.9 ppb (12) 28.4 ppb (27) 26.0 ppb (25) 21.5 ppb (21) 0.0 ppb (0) 1.0 ppb (1) 0.33 ppb (4) 38.0 μg/m3 (36) 22.0 μg/m3 (72) 72.0
 
Feb. 25, 2021, noon 27.9 ppb (27) 5.1 ppb (5) 23.7 ppb (23) 23.0 ppb (22) 21.0 ppb (20) 0.0 ppb (0) 4.0 ppb (4) 0.28 ppb (4) 28.0 μg/m3 (26) 17.0 μg/m3 (62) 62.0
 
Feb. 25, 2021, 11 a.m. 21.5 ppb (21) 1.2 ppb (2) 22.4 ppb (22) 20.0 ppb (19) 19.3 ppb (19) 0.0 ppb (0) 7.0 ppb (7) 0.25 ppb (3) 34.0 μg/m3 (32) 19.0 μg/m3 (66) 66.0
 
Feb. 25, 2021, 10 a.m. 20.0 ppb (19) 0.9 ppb (1) 17.8 ppb (17) 19.0 ppb (18) 17.6 ppb (17) 0.0 ppb (0) 11.0 ppb (11) 0.22 ppb (3) 41.0 μg/m3 (38) 25.0 μg/m3 (79) 79.0
 
Feb. 25, 2021, 9 a.m. 18.0 ppb (17) 0.7 ppb (1) 15.5 ppb (15) 17.0 ppb (17) 15.4 ppb (15) 0.0 ppb (0) 16.0 ppb (15) 0.2 ppb (3) 42.0 μg/m3 (39) 22.0 μg/m3 (72) 72.0
 
Feb. 25, 2021, 8 a.m. 18.6 ppb (18) 0.7 ppb (1) 17.7 ppb (17) 18.0 ppb (17) 17.6 ppb (17) 0.0 ppb (0) 17.0 ppb (16) 0.13 ppb (2) 33.0 μg/m3 (31) 17.0 μg/m3 (62) 62.0
 
Feb. 25, 2021, 7 a.m. 26.9 ppb (26) 1.5 ppb (2) 24.9 ppb (24) 25.0 ppb (24) 24.0 ppb (23) 0.0 ppb (0) 11.0 ppb (11) 0.14 ppb (2) 31.0 μg/m3 (29) 17.0 μg/m3 (62) 62.0
 
Feb. 25, 2021, 6 a.m. 60.5 ppb (58) 16.8 ppb (16) 56.3 ppb (54) 44.0 ppb (42) 43.4 ppb (41) 0.0 ppb (0) 3.0 ppb (3) 0.55 ppb (7) 47.0 μg/m3 (44) 25.0 μg/m3 (79) 79.0
 
Feb. 25, 2021, 5 a.m. 58.2 ppb (56) 6.0 ppb (6) 55.2 ppb (53) 52.0 ppb (50) 49.9 ppb (48) 0.0 ppb (0) 2.0 ppb (2) 0.67 ppb (8) 46.0 μg/m3 (43) 25.0 μg/m3 (79) 79.0
 
Feb. 25, 2021, 4 a.m. 44.1 ppb (42) 1.4 ppb (2) 42.6 ppb (41) 43.0 ppb (41) 41.6 ppb (40) 0.0 ppb (0) 14.0 ppb (13) 0.62 ppb (7) 45.0 μg/m3 (42) 23.0 μg/m3 (74) 74.0
 
Feb. 25, 2021, 3 a.m. 29.7 ppb (29) 0.6 ppb (1) 29.0 ppb (28) 29.0 ppb (28) 28.9 ppb (28) 0.0 ppb (0) 28.0 ppb (26) 0.49 ppb (6) 36.0 μg/m3 (34) 13.0 μg/m3 (53) 53.0
 
Feb. 25, 2021, 2 a.m. 20.2 ppb (20) 0.3 ppb (1) 19.4 ppb (19) 20.0 ppb (19) 19.3 ppb (19) 0.0 ppb (0) 42.0 ppb (39) 0.36 ppb (5) 32.0 μg/m3 (30) 12.0 μg/m3 (50) 50.0
 
Feb. 25, 2021, 1 a.m. 15.8 ppb (15) 0.5 ppb (1) 15.0 ppb (15) 15.0 ppb (15) 14.7 ppb (14) 0.0 ppb (0) 48.0 ppb (45) 0.34 ppb (4) 36.0 μg/m3 (34) 16.0 μg/m3 (60) 60.0
 
Feb. 25, 2021, midnight 15.1 ppb (15) 1.4 ppb (2) 14.3 ppb (14) 14.0 ppb (14) 13.1 ppb (13) 0.0 ppb (0) 50.0 ppb (47) 0.33 ppb (4) 32.0 μg/m3 (30) 11.0 μg/m3 (46) 47.0
 
Feb. 24, 2021, 11 p.m. 17.5 ppb (17) 2.7 ppb (3) 16.7 ppb (16) 15.0 ppb (15) 14.0 ppb (14) 1.0 ppb (2) 46.0 ppb (43) 0.32 ppb (4) 38.0 μg/m3 (36) 15.0 μg/m3 (58) 58.0
 
Feb. 24, 2021, 10 p.m. 19.4 ppb (19) 3.1 ppb (3) 18.5 ppb (18) 16.0 ppb (16) 15.1 ppb (15) 0.0 ppb (0) 50.0 ppb (47) 0.28 ppb (4) 28.0 μg/m3 (26) 7.0 μg/m3 (30) 47.0
 
Feb. 24, 2021, 9 p.m. 19.7 ppb (19) 3.1 ppb (3) 18.3 ppb (18) 17.0 ppb (17) 15.1 ppb (15) 0.0 ppb (0) 55.0 ppb (51) 0.31 ppb (4) 33.0 μg/m3 (31) 11.0 μg/m3 (46) 51.0
 
Feb. 24, 2021, 8 p.m. 24.1 ppb (23) 4.4 ppb (5) 22.2 ppb (21) 20.0 ppb (19) 17.5 ppb (17) 0.0 ppb (0) 49.0 ppb (46) 0.31 ppb (4) 31.0 μg/m3 (29) 14.0 μg/m3 (55) 55.0
 
Feb. 24, 2021, 7 p.m. 39.8 ppb (38) 10.2 ppb (10) 38.0 ppb (36) 30.0 ppb (29) 27.2 ppb (26) 0.0 ppb (0) 36.0 ppb (34) 0.38 ppb (5) 36.0 μg/m3 (34) 17.0 μg/m3 (62) 62.0
 
Feb. 24, 2021, 6 p.m. 40.3 ppb (39) 12.7 ppb (12) 37.6 ppb (36) 28.0 ppb (27) 25.0 ppb (24) 0.0 ppb (0) 30.0 ppb (28) 0.42 ppb (5) 35.0 μg/m3 (33) 11.0 μg/m3 (46) 46.0
 
Feb. 24, 2021, 5 p.m. 34.5 ppb (33) 11.1 ppb (11) 34.0 ppb (33) 24.0 ppb (23) 22.9 ppb (22) 0.0 ppb (0) 27.0 ppb (25) 0.26 ppb (4) 30.0 μg/m3 (28) 12.0 μg/m3 (50) 50.0
 
Feb. 24, 2021, 4 p.m. 79.7 ppb (79) 45.2 ppb (43) 66.5 ppb (65) 35.0 ppb (34) 30.0 ppb (29) 0.0 ppb (0) 8.0 ppb (8) 0.66 ppb (8) 39.0 μg/m3 (37) 13.0 μg/m3 (53) 79.0
 
Feb. 24, 2021, 3 p.m. 137.4 ppb (108) 97.9 ppb (98) 126.8 ppb (106) 40.0 ppb (38) 38.9 ppb (37) 1.0 ppb (2) 2.0 ppb (2) 1.06 ppb (13) 49.0 μg/m3 (46) 11.0 μg/m3 (46) 108.0
 
Feb. 24, 2021, 2 p.m. 101.5 ppb (102) 65.6 ppb (64) 96.8 ppb (97) 36.0 ppb (34) 34.4 ppb (33) 1.0 ppb (2) 1.0 ppb (1) 0.91 ppb (11) 48.0 μg/m3 (45) 14.0 μg/m3 (55) 102.0
 
Feb. 24, 2021, 1 p.m. 84.5 ppb (84) 48.6 ppb (46) 75.7 ppb (75) 36.0 ppb (34) 30.9 ppb (30) 0.0 ppb (0) 1.0 ppb (1) 0.65 ppb (8) 31.0 μg/m3 (29) 12.0 μg/m3 (50) 84.0
 
Feb. 24, 2021, noon 67.5 ppb (66) 32.8 ppb (31) 61.1 ppb (59) 35.0 ppb (34) 33.5 ppb (32) 0.0 ppb (0) 1.0 ppb (1) 0.55 ppb (7) 30.0 μg/m3 (28) 11.0 μg/m3 (46) 66.0
 
Feb. 24, 2021, 11 a.m. 75.9 ppb (75) 39.0 ppb (37) 71.4 ppb (70) 37.0 ppb (35) 31.7 ppb (30) 0.0 ppb (0) 1.0 ppb (1) 0.61 ppb (7) 33.0 μg/m3 (31) 11.0 μg/m3 (46) 75.0
 
Feb. 24, 2021, 10 a.m. 64.6 ppb (63) 27.0 ppb (26) 56.6 ppb (54) 38.0 ppb (36) 37.0 ppb (35) 0.0 ppb (0) 1.0 ppb (1) 0.62 ppb (7) 34.0 μg/m3 (32) 17.0 μg/m3 (62) 63.0
 
Feb. 24, 2021, 9 a.m. 46.0 ppb (44) 7.9 ppb (8) 42.5 ppb (41) 38.0 ppb (36) 35.8 ppb (34) 0.0 ppb (0) 2.0 ppb (2) 0.59 ppb (7) 31.0 μg/m3 (29) 14.0 μg/m3 (55) 55.0
 
Feb. 24, 2021, 8 a.m. 58.2 ppb (56) 16.8 ppb (16) 55.8 ppb (53) 42.0 ppb (40) 42.0 ppb (40) 0.0 ppb (0) 1.0 ppb (1) 0.65 ppb (8) 36.0 μg/m3 (34) 19.0 μg/m3 (66) 66.0
 
Feb. 24, 2021, 7 a.m. 53.3 ppb (51) 9.6 ppb (10) 51.5 ppb (49) 44.0 ppb (42) 43.6 ppb (42) 1.0 ppb (2) 1.0 ppb (1) 0.69 ppb (8) 37.0 μg/m3 (35) 15.0 μg/m3 (58) 58.0
 
Feb. 24, 2021, 6 a.m. 52.5 ppb (50) 6.7 ppb (7) 51.0 ppb (49) 46.0 ppb (44) 46.0 ppb (44) 1.0 ppb (2) 2.0 ppb (2) 0.7 ppb (8) 38.0 μg/m3 (36) 15.0 μg/m3 (58) 58.0
 
Feb. 24, 2021, 5 a.m. 41.0 ppb (39) 2.6 ppb (3) 40.9 ppb (39) 39.0 ppb (37) 39.5 ppb (38) 0.0 ppb (0) 11.0 ppb (11) 0.56 ppb (7) 35.0 μg/m3 (33) 17.0 μg/m3 (62) 62.0
 
Feb. 24, 2021, 4 a.m. 37.8 ppb (36) 1.5 ppb (2) 36.4 ppb (35) 36.0 ppb (34) 35.6 ppb (34) 0.0 ppb (0) 14.0 ppb (13) 0.52 ppb (6) 35.0 μg/m3 (33) 11.0 μg/m3 (46) 46.0
 
Feb. 24, 2021, 3 a.m. 31.5 ppb (30) 0.6 ppb (1) 29.6 ppb (28) 31.0 ppb (30) 29.4 ppb (28) 0.0 ppb (0) 21.0 ppb (20) 0.56 ppb (7) 28.0 μg/m3 (26) 7.0 μg/m3 (30) 30.0
 
Feb. 24, 2021, 2 a.m. 22.5 ppb (22) 0.3 ppb (1) 21.6 ppb (21) 22.0 ppb (21) 21.5 ppb (21) 0.0 ppb (0) 35.0 ppb (33) 0.42 ppb (5) 22.0 μg/m3 (21) 7.0 μg/m3 (30) 33.0
 
Feb. 24, 2021, 1 a.m. 12.8 ppb (13) 0.3 ppb (1) 12.1 ppb (12) 13.0 ppb (13) 11.8 ppb (12) 0.0 ppb (0) 48.0 ppb (45) 0.33 ppb (4) 18.0 μg/m3 (17) 4.0 μg/m3 (17) 45.0
 
Feb. 24, 2021, midnight 11.3 ppb (11) 1.1 ppb (2) 10.4 ppb (10) 10.0 ppb (10) 9.3 ppb (9) 0.0 ppb (0) 50.0 ppb (47) 0.3 ppb (4) 19.0 μg/m3 (18) 4.0 μg/m3 (17) 47.0
 
Feb. 23, 2021, 11 p.m. 12.8 ppb (13) 2.1 ppb (2) 11.9 ppb (12) 11.0 ppb (11) 9.8 ppb (10) 0.0 ppb (0) 49.0 ppb (46) 0.27 ppb (4) 22.0 μg/m3 (21) 7.0 μg/m3 (30) 46.0
 
Feb. 23, 2021, 10 p.m. 22.8 ppb (22) 4.8 ppb (5) 21.1 ppb (20) 18.0 ppb (17) 16.1 ppb (16) 0.0 ppb (0) 42.0 ppb (39) 0.32 ppb (4) 27.0 μg/m3 (25) 6.0 μg/m3 (25) 39.0
 
Feb. 23, 2021, 9 p.m. 27.2 ppb (26) 6.3 ppb (6) 26.4 ppb (25) 21.0 ppb (20) 19.6 ppb (19) 1.0 ppb (2) 38.0 ppb (36) 0.31 ppb (4) 34.0 μg/m3 (32) 8.0 μg/m3 (34) 36.0
 
Feb. 23, 2021, 8 p.m. 23.7 ppb (23) 6.1 ppb (6) 23.5 ppb (23) 18.0 ppb (17) 16.8 ppb (16) 0.0 ppb (0) 37.0 ppb (35) 0.28 ppb (4) 19.0 μg/m3 (18) 5.0 μg/m3 (21) 35.0
 
Feb. 23, 2021, 7 p.m. 17.4 ppb (17) 4.6 ppb (5) 16.7 ppb (16) 13.0 ppb (13) 12.1 ppb (12) 0.0 ppb (0) 37.0 ppb (35) 0.25 ppb (3) 19.0 μg/m3 (18) 2.0 μg/m3 (9) 35.0
 
Feb. 23, 2021, 6 p.m. 15.3 ppb (15) 4.3 ppb (5) 14.2 ppb (14) 11.0 ppb (11) 10.0 ppb (10) 0.0 ppb (0) 33.0 ppb (31) 0.23 ppb (3) 16.0 μg/m3 (15) 6.0 μg/m3 (25) 31.0
 
Feb. 23, 2021, 5 p.m. 64.6 ppb (63) 33.6 ppb (32) 60.9 ppb (59) 31.0 ppb (30) 29.3 ppb (28) 0.0 ppb (0) 13.0 ppb (13) 0.53 ppb (6) 36.0 μg/m3 (34) 11.0 μg/m3 (46) 63.0
 
Feb. 23, 2021, 4 p.m. 81.1 ppb (80) 47.6 ppb (45) 76.7 ppb (76) 34.0 ppb (33) 32.2 ppb (31) 0.0 ppb (0) 7.0 ppb (7) 0.53 ppb (6) 35.0 μg/m3 (33) 5.0 μg/m3 (21) 80.0
 
Feb. 23, 2021, 3 p.m. 116.6 ppb (104) 82.1 ppb (81) 110.5 ppb (103) 35.0 ppb (34) 34.1 ppb (33) 1.0 ppb (2) 3.0 ppb (3) 0.84 ppb (10) 41.0 μg/m3 (38) 7.0 μg/m3 (30) 104.0
 
Feb. 23, 2021, 2 p.m. 124.3 ppb (106) 89.9 ppb (90) 118.7 ppb (105) 35.0 ppb (34) 32.3 ppb (31) 1.0 ppb (2) 1.0 ppb (1) 0.85 ppb (10) 47.0 μg/m3 (44) 8.0 μg/m3 (34) 106.0
 
Feb. 23, 2021, 1 p.m. 82.3 ppb (82) 49.8 ppb (47) 77.5 ppb (77) 33.0 ppb (32) 28.3 ppb (27) 1.0 ppb (2) 1.0 ppb (1) 0.59 ppb (7) 29.0 μg/m3 (27) 9.0 μg/m3 (38) 82.0
 
Feb. 23, 2021, noon 62.7 ppb (61) 31.1 ppb (30) 48.5 ppb (46) 32.0 ppb (31) 28.5 ppb (27) 0.0 ppb (0) 1.0 ppb (1) 0.44 ppb (5) 21.0 μg/m3 (20) 7.0 μg/m3 (30) 61.0
 
Feb. 23, 2021, 11 a.m. 40.3 ppb (39) 8.6 ppb (9) 38.1 ppb (36) 32.0 ppb (31) 29.5 ppb (28) 0.0 ppb (0) 1.0 ppb (1) 0.3 ppb (4) 18.0 μg/m3 (17) 9.0 μg/m3 (38) 39.0
 
Feb. 23, 2021, 10 a.m. 50.2 ppb (48) 16.8 ppb (16) 51.2 ppb (49) 34.0 ppb (33) 33.4 ppb (32) 0.0 ppb (0) 2.0 ppb (2) 0.33 ppb (4) 18.0 μg/m3 (17) 12.0 μg/m3 (50) 50.0
 
Feb. 23, 2021, 9 a.m. 56.5 ppb (54) 21.1 ppb (20) 54.2 ppb (52) 35.0 ppb (34) 32.1 ppb (31) 0.0 ppb (0) 1.0 ppb (1) 0.67 ppb (8) 22.0 μg/m3 (21) 8.0 μg/m3 (34) 54.0
 
Feb. 23, 2021, 8 a.m. 47.5 ppb (45) 13.5 ppb (13) 45.6 ppb (44) 34.0 ppb (33) 34.6 ppb (33) 1.0 ppb (2) 2.0 ppb (2) 0.67 ppb (8) 27.0 μg/m3 (25) 10.0 μg/m3 (42) 45.0
 
Feb. 23, 2021, 7 a.m. 58.2 ppb (56) 19.9 ppb (19) 53.2 ppb (51) 38.0 ppb (36) 37.6 ppb (36) 0.0 ppb (0) 2.0 ppb (2) 0.74 ppb (8) 29.0 μg/m3 (27) 8.0 μg/m3 (34) 56.0
 
Feb. 23, 2021, 6 a.m. 64.7 ppb (63) 25.0 ppb (24) 65.2 ppb (63) 40.0 ppb (38) 40.6 ppb (39) 0.0 ppb (0) 2.0 ppb (2) 0.83 ppb (10) 28.0 μg/m3 (26) 8.0 μg/m3 (34) 63.0
 
Feb. 23, 2021, 5 a.m. 65.3 ppb (64) 23.0 ppb (22) 64.0 ppb (62) 42.0 ppb (40) 41.7 ppb (40) 0.0 ppb (0) 2.0 ppb (2) 0.89 ppb (11) 38.0 μg/m3 (36) 8.0 μg/m3 (34) 64.0
 
Feb. 23, 2021, 4 a.m. 71.6 ppb (70) 25.2 ppb (24) 70.1 ppb (69) 47.0 ppb (45) 46.4 ppb (44) 0.0 ppb (0) 1.0 ppb (1) 0.89 ppb (11) 36.0 μg/m3 (34) 10.0 μg/m3 (42) 70.0
 
Feb. 23, 2021, 3 a.m. 36.3 ppb (35) 2.6 ppb (3) 35.1 ppb (34) 34.0 ppb (33) 32.7 ppb (31) 0.0 ppb (0) 14.0 ppb (13) 0.53 ppb (6) 26.0 μg/m3 (25) 6.0 μg/m3 (25) 35.0
 
Feb. 23, 2021, 2 a.m. 18.5 ppb (18) 0.3 ppb (1) 17.0 ppb (17) 18.0 ppb (17) 16.9 ppb (16) 0.0 ppb (0) 36.0 ppb (34) 0.33 ppb (4) 26.0 μg/m3 (25) 5.0 μg/m3 (21) 34.0
 
Feb. 23, 2021, 1 a.m. 21.4 ppb (21) 0.8 ppb (1) 20.6 ppb (20) 21.0 ppb (20) 20.0 ppb (19) 0.0 ppb (0) 35.0 ppb (33) 0.42 ppb (5) 24.0 μg/m3 (23) 4.0 μg/m3 (17) 33.0
 
Feb. 23, 2021, midnight 13.4 ppb (13) 1.3 ppb (2) 13.3 ppb (13) 12.0 ppb (12) 11.8 ppb (12) 0.0 ppb (0) 45.0 ppb (42) 0.28 ppb (4) 15.0 μg/m3 (14) 7.0 μg/m3 (30) 42.0
 
Feb. 22, 2021, 11 p.m. 12.9 ppb (13) 2.1 ppb (2) 12.2 ppb (12) 11.0 ppb (11) 10.0 ppb (10) 0.0 ppb (0) 45.0 ppb (42) 0.23 ppb (3) 19.0 μg/m3 (18) 7.0 μg/m3 (30) 42.0
 
Feb. 22, 2021, 10 p.m. 10.7 ppb (11) 1.9 ppb (2) 10.1 ppb (10) 9.0 ppb (9) 7.9 ppb (8) 0.0 ppb (0) 45.0 ppb (42) 0.22 ppb (3) 13.0 μg/m3 (13) 1.0 μg/m3 (5) 42.0
 
Feb. 22, 2021, 9 p.m. 11.9 ppb (12) 2.5 ppb (3) 11.4 ppb (11) 9.0 ppb (9) 8.4 ppb (8) 0.0 ppb (0) 43.0 ppb (40) 0.32 ppb (4) 18.0 μg/m3 (17) 2.0 μg/m3 (9) 40.0
 
Feb. 22, 2021, 8 p.m. 10.5 ppb (10) 2.3 ppb (3) 10.0 ppb (10) 8.0 ppb (8) 7.4 ppb (7) 0.0 ppb (0) 43.0 ppb (40) 0.24 ppb (3) 7.0 μg/m3 (7) 3.0 μg/m3 (13) 40.0
 
Feb. 22, 2021, 7 p.m. 12.0 ppb (12) 3.5 ppb (4) 11.3 ppb (11) 9.0 ppb (9) 8.4 ppb (8) 0.0 ppb (0) 43.0 ppb (40) 0.21 ppb (3) 16.0 μg/m3 (15) 5.0 μg/m3 (21) 40.0
 
Feb. 22, 2021, 6 p.m. 12.3 ppb (12) 3.1 ppb (3) 12.5 ppb (12) 9.0 ppb (9) 8.7 ppb (9) 0.0 ppb (0) 41.0 ppb (38) 0.25 ppb (3) 22.0 μg/m3 (21) 6.0 μg/m3 (25) 38.0