ID: 7872

AQSQID: 840060374010

Site Name: North Holywood

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

Updated: Sept. 25, 2020, 4:40 p.m.

Location: N Hollywood (N Hollywood), CA

Reporting: True, Located: True

Current AQI: 81.0

N Hollywood (N Hollywood) CA, US: 34.181977, -118.363036

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 25, 2020, 3 p.m. 39.3 ppb (36) 13.6 ppb (13) N/A 26.0 ppb (24) N/A N/A 14.0 ppb (11) N/A N/A 26.7 μg/m3 (81) 81.0
 
Sept. 25, 2020, 2 p.m. 44.8 ppb (41) 14.6 ppb (14) N/A 30.0 ppb (28) N/A N/A 5.0 ppb (4) N/A N/A 26.0 μg/m3 (80) 80.0
 
Sept. 25, 2020, 1 p.m. 50.6 ppb (47) 17.3 ppb (16) N/A 33.0 ppb (31) N/A N/A 1.0 ppb (1) N/A N/A 21.8 μg/m3 (71) 71.0
 
Sept. 25, 2020, noon 41.6 ppb (39) 12.5 ppb (12) N/A 29.0 ppb (27) N/A N/A 2.0 ppb (2) N/A N/A 17.2 μg/m3 (61) 61.0
 
Sept. 25, 2020, 11 a.m. 29.4 ppb (27) 1.7 ppb (2) N/A 28.0 ppb (26) N/A N/A 5.0 ppb (4) N/A N/A 20.1 μg/m3 (67) 67.0
 
Sept. 25, 2020, 10 a.m. 29.1 ppb (27) 1.2 ppb (1) N/A 28.0 ppb (26) N/A N/A 8.0 ppb (6) N/A N/A 22.6 μg/m3 (73) 73.0
 
Sept. 25, 2020, 9 a.m. 31.6 ppb (29) 1.0 ppb (1) N/A 31.0 ppb (29) N/A N/A 11.0 ppb (8) N/A N/A 27.2 μg/m3 (82) 82.0
 
Sept. 25, 2020, 8 a.m. 32.4 ppb (30) 1.0 ppb (1) N/A 31.0 ppb (29) N/A N/A 14.0 ppb (11) N/A N/A 22.8 μg/m3 (73) 73.0
 
Sept. 25, 2020, 7 a.m. 45.6 ppb (42) 0.7 ppb (1) N/A 45.0 ppb (42) N/A N/A 13.0 ppb (10) N/A N/A 27.4 μg/m3 (83) 83.0
 
Sept. 25, 2020, 6 a.m. 37.1 ppb (34) 0.6 ppb (1) N/A 36.0 ppb (33) N/A N/A 21.0 ppb (16) N/A N/A 28.2 μg/m3 (84) 84.0
 
Sept. 25, 2020, 5 a.m. 25.0 ppb (23) 0.4 ppb (0) N/A 25.0 ppb (23) N/A N/A 39.0 ppb (30) N/A N/A 23.5 μg/m3 (74) 74.0
 
Sept. 25, 2020, 4 a.m. 25.3 ppb (23) 0.5 ppb (0) N/A 25.0 ppb (23) N/A N/A 38.0 ppb (29) N/A N/A 25.2 μg/m3 (78) 78.0
 
Sept. 25, 2020, 3 a.m. 21.8 ppb (20) 0.3 ppb (0) N/A 22.0 ppb (20) N/A N/A 50.0 ppb (38) N/A N/A 25.5 μg/m3 (79) 79.0
 
Sept. 25, 2020, 2 a.m. 13.9 ppb (13) 0.2 ppb (0) N/A 14.0 ppb (13) N/A N/A 60.0 ppb (46) N/A N/A 19.1 μg/m3 (65) 65.0
 
Sept. 25, 2020, 1 a.m. 10.5 ppb (10) 0.2 ppb (0) N/A 10.0 ppb (9) N/A N/A 68.0 ppb (52) N/A N/A 17.0 μg/m3 (61) 61.0
 
Sept. 25, 2020, midnight 9.9 ppb (9) 0.4 ppb (0) N/A 10.0 ppb (9) N/A N/A 72.0 ppb (56) N/A N/A 18.7 μg/m3 (64) 64.0
 
Sept. 24, 2020, 11 p.m. 12.1 ppb (11) 0.9 ppb (1) N/A 11.0 ppb (10) N/A N/A 77.0 ppb (60) N/A N/A 21.9 μg/m3 (71) 71.0
 
Sept. 24, 2020, 10 p.m. 15.6 ppb (14) 1.2 ppb (1) N/A 14.0 ppb (13) N/A N/A 86.0 ppb (68) N/A N/A 19.4 μg/m3 (66) 68.0
 
Sept. 24, 2020, 9 p.m. 18.4 ppb (17) 1.5 ppb (1) N/A 17.0 ppb (16) N/A N/A 89.0 ppb (70) N/A N/A 24.5 μg/m3 (77) 77.0
 
Sept. 24, 2020, 8 p.m. 23.1 ppb (21) 2.2 ppb (2) N/A 21.0 ppb (19) N/A N/A 86.0 ppb (68) N/A N/A 24.0 μg/m3 (76) 76.0
 
Sept. 24, 2020, 7 p.m. 35.0 ppb (32) 5.3 ppb (5) N/A 30.0 ppb (28) N/A N/A 63.0 ppb (48) N/A N/A 22.3 μg/m3 (72) 72.0
 
Sept. 24, 2020, 6 p.m. 33.9 ppb (31) 5.0 ppb (5) N/A 29.0 ppb (27) N/A N/A 61.0 ppb (47) N/A N/A 31.1 μg/m3 (91) 91.0
 
Sept. 24, 2020, 5 p.m. 29.9 ppb (28) 5.1 ppb (5) N/A 25.0 ppb (23) N/A N/A 50.0 ppb (38) N/A N/A N/A 38.0
 
Sept. 24, 2020, 4 p.m. 44.0 ppb (41) 14.4 ppb (13) N/A 30.0 ppb (28) N/A N/A 26.0 ppb (20) N/A N/A N/A 41.0
 
Sept. 24, 2020, 3 p.m. 66.4 ppb (63) 32.5 ppb (30) N/A 34.0 ppb (31) N/A N/A 9.0 ppb (7) N/A N/A 22.1 μg/m3 (71) 71.0
 
Sept. 24, 2020, 2 p.m. 58.5 ppb (55) 33.4 ppb (31) N/A 25.0 ppb (23) N/A N/A 4.0 ppb (3) N/A N/A 17.4 μg/m3 (61) 61.0
 
Sept. 24, 2020, 1 p.m. 38.2 ppb (35) 16.1 ppb (15) N/A 22.0 ppb (20) N/A N/A 2.0 ppb (2) N/A N/A 16.7 μg/m3 (60) 60.0
 
Sept. 24, 2020, noon 32.1 ppb (30) 10.2 ppb (9) N/A 22.0 ppb (20) N/A N/A 2.0 ppb (2) N/A N/A 16.4 μg/m3 (59) 59.0
 
Sept. 24, 2020, 11 a.m. 34.2 ppb (32) 9.8 ppb (9) N/A 24.0 ppb (22) N/A N/A 2.0 ppb (2) N/A N/A 20.4 μg/m3 (68) 68.0
 
Sept. 24, 2020, 10 a.m. 31.5 ppb (29) 6.2 ppb (6) N/A 25.0 ppb (23) N/A N/A 3.0 ppb (2) N/A N/A 14.9 μg/m3 (56) 56.0
 
Sept. 24, 2020, 9 a.m. 28.2 ppb (26) 3.7 ppb (3) N/A 24.0 ppb (22) N/A N/A 3.0 ppb (2) N/A N/A 19.4 μg/m3 (66) 66.0
 
Sept. 24, 2020, 8 a.m. 25.8 ppb (24) 1.9 ppb (2) N/A 24.0 ppb (22) N/A N/A 5.0 ppb (4) N/A N/A 17.7 μg/m3 (62) 62.0
 
Sept. 24, 2020, 7 a.m. 26.4 ppb (24) 1.1 ppb (1) N/A 25.0 ppb (23) N/A N/A 6.0 ppb (5) N/A N/A 17.9 μg/m3 (63) 63.0
 
Sept. 24, 2020, 6 a.m. 23.3 ppb (22) 0.8 ppb (1) N/A 22.0 ppb (20) N/A N/A 12.0 ppb (9) N/A N/A 15.9 μg/m3 (58) 58.0
 
Sept. 24, 2020, 5 a.m. 18.2 ppb (17) 0.4 ppb (0) N/A 18.0 ppb (17) N/A N/A 20.0 ppb (15) N/A N/A 13.5 μg/m3 (53) 53.0
 
Sept. 24, 2020, 4 a.m. 14.8 ppb (14) 0.5 ppb (0) N/A 14.0 ppb (13) N/A N/A 27.0 ppb (21) N/A N/A 12.3 μg/m3 (51) 51.0
 
Sept. 24, 2020, 3 a.m. 14.5 ppb (13) 0.3 ppb (0) N/A 14.0 ppb (13) N/A N/A 32.0 ppb (25) N/A N/A 18.9 μg/m3 (65) 65.0
 
Sept. 24, 2020, 2 a.m. 13.8 ppb (13) 0.2 ppb (0) N/A 14.0 ppb (13) N/A N/A 43.0 ppb (33) N/A N/A 15.9 μg/m3 (58) 58.0
 
Sept. 24, 2020, 1 a.m. 9.7 ppb (9) 0.3 ppb (0) N/A 9.0 ppb (8) N/A N/A 57.0 ppb (44) N/A N/A 17.6 μg/m3 (62) 62.0
 
Sept. 24, 2020, midnight 7.7 ppb (7) 0.4 ppb (0) N/A 7.0 ppb (6) N/A N/A 65.0 ppb (50) N/A N/A 16.7 μg/m3 (60) 60.0
 
Sept. 23, 2020, 11 p.m. 7.4 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A N/A 71.0 ppb (55) N/A N/A 16.7 μg/m3 (60) 60.0
 
Sept. 23, 2020, 10 p.m. 7.0 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 70.0 ppb (54) N/A N/A 17.9 μg/m3 (63) 63.0
 
Sept. 23, 2020, 9 p.m. 8.6 ppb (8) 0.5 ppb (0) N/A 8.0 ppb (7) N/A N/A 87.0 ppb (68) N/A N/A 20.9 μg/m3 (69) 69.0
 
Sept. 23, 2020, 8 p.m. 10.8 ppb (10) 0.5 ppb (0) N/A 10.0 ppb (9) N/A N/A 99.0 ppb (78) N/A N/A 28.2 μg/m3 (84) 84.0
 
Sept. 23, 2020, 7 p.m. 14.0 ppb (13) 1.2 ppb (1) N/A 13.0 ppb (12) N/A N/A 84.0 ppb (66) N/A N/A 23.3 μg/m3 (74) 74.0
 
Sept. 23, 2020, 6 p.m. 19.6 ppb (18) 2.6 ppb (2) N/A 17.0 ppb (16) N/A N/A 63.0 ppb (48) N/A N/A 25.5 μg/m3 (79) 79.0
 
Sept. 23, 2020, 5 p.m. 22.3 ppb (21) 3.5 ppb (3) N/A 19.0 ppb (18) N/A N/A 51.0 ppb (39) N/A N/A 21.6 μg/m3 (70) 70.0
 
Sept. 23, 2020, 4 p.m. 30.0 ppb (28) 7.2 ppb (7) N/A 23.0 ppb (21) N/A N/A 34.0 ppb (26) N/A N/A 21.8 μg/m3 (71) 71.0
 
Sept. 23, 2020, 3 p.m. 51.9 ppb (48) 22.1 ppb (20) N/A 30.0 ppb (28) N/A N/A 12.0 ppb (9) N/A N/A 23.3 μg/m3 (74) 74.0
 
Sept. 23, 2020, 2 p.m. 52.3 ppb (48) 28.2 ppb (26) N/A 24.0 ppb (22) N/A N/A 4.0 ppb (3) N/A N/A 17.9 μg/m3 (63) 63.0
 
Sept. 23, 2020, 1 p.m. 36.1 ppb (33) 14.4 ppb (13) N/A 22.0 ppb (20) N/A N/A 2.0 ppb (2) N/A N/A 17.4 μg/m3 (61) 61.0
 
Sept. 23, 2020, noon 30.5 ppb (28) 7.9 ppb (7) N/A 23.0 ppb (21) N/A N/A 2.0 ppb (2) N/A N/A 20.4 μg/m3 (68) 68.0
 
Sept. 23, 2020, 11 a.m. 21.7 ppb (20) 1.4 ppb (1) N/A 20.0 ppb (19) N/A N/A 5.0 ppb (4) N/A N/A 20.1 μg/m3 (67) 67.0
 
Sept. 23, 2020, 10 a.m. 21.3 ppb (20) 1.3 ppb (1) N/A 20.0 ppb (19) N/A N/A 8.0 ppb (6) N/A N/A 22.8 μg/m3 (73) 73.0
 
Sept. 23, 2020, 9 a.m. 20.8 ppb (19) 0.9 ppb (1) N/A 20.0 ppb (19) N/A N/A 12.0 ppb (9) N/A N/A 17.7 μg/m3 (62) 62.0
 
Sept. 23, 2020, 8 a.m. 21.2 ppb (20) 0.8 ppb (1) N/A 20.0 ppb (19) N/A N/A 17.0 ppb (13) N/A N/A 17.7 μg/m3 (62) 62.0
 
Sept. 23, 2020, 7 a.m. 17.1 ppb (16) 0.6 ppb (1) N/A 16.0 ppb (15) N/A N/A 25.0 ppb (19) N/A N/A 22.3 μg/m3 (72) 72.0
 
Sept. 23, 2020, 6 a.m. 14.0 ppb (13) 0.5 ppb (0) N/A 13.0 ppb (12) N/A N/A 30.0 ppb (23) N/A N/A 20.4 μg/m3 (68) 68.0
 
Sept. 23, 2020, 5 a.m. 16.7 ppb (15) 0.5 ppb (0) N/A 16.0 ppb (15) N/A N/A 31.0 ppb (24) N/A N/A 20.6 μg/m3 (68) 68.0
 
Sept. 23, 2020, 4 a.m. 12.0 ppb (11) 0.3 ppb (0) N/A 12.0 ppb (11) N/A N/A 40.0 ppb (31) N/A N/A 24.2 μg/m3 (76) 76.0
 
Sept. 23, 2020, 3 a.m. 11.7 ppb (11) 0.2 ppb (0) N/A 12.0 ppb (11) N/A N/A 46.0 ppb (35) N/A N/A 16.0 μg/m3 (59) 59.0
 
Sept. 23, 2020, 2 a.m. 9.9 ppb (9) 0.3 ppb (0) N/A 10.0 ppb (9) N/A N/A 53.0 ppb (41) N/A N/A 18.7 μg/m3 (64) 64.0
 
Sept. 23, 2020, 1 a.m. 7.5 ppb (7) 0.3 ppb (0) N/A 7.0 ppb (6) N/A N/A 60.0 ppb (46) N/A N/A 17.2 μg/m3 (61) 61.0
 
Sept. 23, 2020, midnight 9.0 ppb (8) 0.7 ppb (1) N/A 8.0 ppb (7) N/A N/A 63.0 ppb (48) N/A N/A 19.2 μg/m3 (65) 65.0
 
Sept. 22, 2020, 11 p.m. 7.1 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A N/A 68.0 ppb (52) N/A N/A 14.7 μg/m3 (56) 56.0
 
Sept. 22, 2020, 10 p.m. 6.4 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 69.0 ppb (53) N/A N/A 16.7 μg/m3 (60) 60.0
 
Sept. 22, 2020, 9 p.m. 7.3 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A N/A 73.0 ppb (57) N/A N/A 17.9 μg/m3 (63) 63.0
 
Sept. 22, 2020, 8 p.m. 12.1 ppb (11) 0.9 ppb (1) N/A 11.0 ppb (10) N/A N/A 88.0 ppb (69) N/A N/A 23.6 μg/m3 (75) 75.0
 
Sept. 22, 2020, 7 p.m. 14.8 ppb (14) 1.3 ppb (1) N/A 14.0 ppb (13) N/A N/A 81.0 ppb (63) N/A N/A 24.5 μg/m3 (77) 77.0
 
Sept. 22, 2020, 6 p.m. 19.7 ppb (18) 2.7 ppb (3) N/A 17.0 ppb (16) N/A N/A 64.0 ppb (49) N/A N/A 31.6 μg/m3 (92) 92.0
 
Sept. 22, 2020, 5 p.m. 19.5 ppb (18) 3.4 ppb (3) N/A 16.0 ppb (15) N/A N/A 47.0 ppb (36) N/A N/A 33.3 μg/m3 (95) 95.0
 
Sept. 22, 2020, 4 p.m. 25.2 ppb (23) 7.5 ppb (7) N/A 18.0 ppb (17) N/A N/A 26.0 ppb (20) N/A N/A 36.0 μg/m3 (101) 101.0
 
Sept. 22, 2020, 3 p.m. 23.1 ppb (21) 6.6 ppb (6) N/A 17.0 ppb (16) N/A N/A 18.0 ppb (14) N/A N/A 22.6 μg/m3 (73) 73.0
 
Sept. 22, 2020, 2 p.m. 21.4 ppb (20) 4.4 ppb (4) N/A 17.0 ppb (16) N/A N/A 10.0 ppb (8) N/A N/A 23.3 μg/m3 (74) 74.0
 
Sept. 22, 2020, 1 p.m. 15.9 ppb (15) 1.1 ppb (1) N/A 15.0 ppb (14) N/A N/A 11.0 ppb (8) N/A N/A 17.4 μg/m3 (61) 61.0
 
Sept. 22, 2020, noon 14.9 ppb (14) 1.0 ppb (1) N/A 14.0 ppb (13) N/A N/A 12.0 ppb (9) N/A N/A 17.2 μg/m3 (61) 61.0
 
Sept. 22, 2020, 11 a.m. 12.4 ppb (11) 0.8 ppb (1) N/A 12.0 ppb (11) N/A N/A 17.0 ppb (13) N/A N/A 16.4 μg/m3 (59) 59.0
 
Sept. 22, 2020, 10 a.m. 13.3 ppb (12) 1.0 ppb (1) N/A 12.0 ppb (11) N/A N/A 19.0 ppb (15) N/A N/A 16.7 μg/m3 (60) 60.0
 
Sept. 22, 2020, 9 a.m. 10.9 ppb (10) 0.5 ppb (0) N/A 10.0 ppb (9) N/A N/A 25.0 ppb (19) N/A N/A 17.4 μg/m3 (61) 61.0
 
Sept. 22, 2020, 8 a.m. 10.4 ppb (10) 0.6 ppb (1) N/A 10.0 ppb (9) N/A N/A 28.0 ppb (22) N/A N/A 20.1 μg/m3 (67) 67.0
 
Sept. 22, 2020, 7 a.m. 11.8 ppb (11) 0.5 ppb (0) N/A 11.0 ppb (10) N/A N/A 30.0 ppb (23) N/A N/A 17.2 μg/m3 (61) 61.0
 
Sept. 22, 2020, 6 a.m. 13.9 ppb (13) 0.5 ppb (0) N/A 13.0 ppb (12) N/A N/A 28.0 ppb (22) N/A N/A 18.2 μg/m3 (63) 63.0
 
Sept. 22, 2020, 5 a.m. 14.6 ppb (14) 0.5 ppb (0) N/A 14.0 ppb (13) N/A N/A 29.0 ppb (22) N/A N/A 18.2 μg/m3 (63) 63.0
 
Sept. 22, 2020, 4 a.m. 12.8 ppb (12) 0.4 ppb (0) N/A 12.0 ppb (11) N/A N/A 34.0 ppb (26) N/A N/A 17.4 μg/m3 (61) 61.0
 
Sept. 22, 2020, 3 a.m. 12.5 ppb (12) 0.4 ppb (0) N/A 12.0 ppb (11) N/A N/A 39.0 ppb (30) N/A N/A 17.2 μg/m3 (61) 61.0
 
Sept. 22, 2020, 2 a.m. 11.1 ppb (10) 0.3 ppb (0) N/A 11.0 ppb (10) N/A N/A 48.0 ppb (37) N/A N/A 16.4 μg/m3 (59) 59.0
 
Sept. 22, 2020, 1 a.m. 9.5 ppb (9) 0.4 ppb (0) N/A 9.0 ppb (8) N/A N/A 59.0 ppb (45) N/A N/A 15.5 μg/m3 (57) 57.0
 
Sept. 22, 2020, midnight 8.6 ppb (8) 0.6 ppb (1) N/A 8.0 ppb (7) N/A N/A 68.0 ppb (52) N/A N/A 14.7 μg/m3 (56) 56.0
 
Sept. 21, 2020, 11 p.m. 9.7 ppb (9) 0.7 ppb (1) N/A 9.0 ppb (8) N/A N/A 74.0 ppb (57) N/A N/A 19.6 μg/m3 (66) 66.0
 
Sept. 21, 2020, 10 p.m. 10.2 ppb (9) 0.7 ppb (1) N/A 9.0 ppb (8) N/A N/A 82.0 ppb (64) N/A N/A 21.4 μg/m3 (70) 70.0
 
Sept. 21, 2020, 9 p.m. 11.1 ppb (10) 0.8 ppb (1) N/A 10.0 ppb (9) N/A N/A 84.0 ppb (66) N/A N/A 26.0 μg/m3 (80) 80.0
 
Sept. 21, 2020, 8 p.m. 13.3 ppb (12) 1.3 ppb (1) N/A 12.0 ppb (11) N/A N/A 77.0 ppb (60) N/A N/A 26.7 μg/m3 (81) 81.0
 
Sept. 21, 2020, 7 p.m. 20.5 ppb (19) 3.3 ppb (3) N/A 17.0 ppb (16) N/A N/A 58.0 ppb (45) N/A N/A 27.9 μg/m3 (84) 84.0
 
Sept. 21, 2020, 6 p.m. 23.1 ppb (21) 5.1 ppb (5) N/A 18.0 ppb (17) N/A N/A 43.0 ppb (33) N/A N/A 28.7 μg/m3 (86) 86.0
 
Sept. 21, 2020, 5 p.m. 20.3 ppb (19) 5.1 ppb (5) N/A 15.0 ppb (14) N/A N/A 34.0 ppb (26) N/A N/A 30.6 μg/m3 (90) 90.0
 
Sept. 21, 2020, 4 p.m. 18.6 ppb (17) 5.2 ppb (5) N/A 13.0 ppb (12) N/A N/A 26.0 ppb (20) N/A N/A 31.8 μg/m3 (92) 92.0
 
Sept. 21, 2020, 3 p.m. 16.1 ppb (15) 3.6 ppb (3) N/A 13.0 ppb (12) N/A N/A 19.0 ppb (15) N/A N/A 26.2 μg/m3 (80) 80.0
 
Sept. 21, 2020, 2 p.m. 13.6 ppb (13) 1.4 ppb (1) N/A 12.0 ppb (11) N/A N/A 16.0 ppb (12) N/A N/A 28.4 μg/m3 (85) 85.0
 
Sept. 21, 2020, 1 p.m. 12.1 ppb (11) 0.7 ppb (1) N/A 11.0 ppb (10) N/A N/A 17.0 ppb (13) N/A N/A 23.5 μg/m3 (74) 74.0
 
Sept. 21, 2020, noon 11.5 ppb (11) 0.8 ppb (1) N/A 11.0 ppb (10) N/A N/A 18.0 ppb (14) N/A N/A 26.7 μg/m3 (81) 81.0
 
Sept. 21, 2020, 11 a.m. 11.5 ppb (11) 0.8 ppb (1) N/A 11.0 ppb (10) N/A N/A 18.0 ppb (14) N/A N/A 21.8 μg/m3 (71) 71.0
 
Sept. 21, 2020, 10 a.m. 12.0 ppb (11) 0.7 ppb (1) N/A 11.0 ppb (10) N/A N/A 18.0 ppb (14) N/A N/A 19.1 μg/m3 (65) 65.0
 
Sept. 21, 2020, 9 a.m. 11.7 ppb (11) 0.8 ppb (1) N/A 11.0 ppb (10) N/A N/A 16.0 ppb (12) N/A N/A 17.2 μg/m3 (61) 61.0
 
Sept. 21, 2020, 8 a.m. 11.4 ppb (11) 0.9 ppb (1) N/A 11.0 ppb (10) N/A N/A 18.0 ppb (14) N/A N/A 18.4 μg/m3 (64) 64.0
 
Sept. 21, 2020, 7 a.m. 13.3 ppb (12) 0.7 ppb (1) N/A 13.0 ppb (12) N/A N/A 19.0 ppb (15) N/A N/A 19.8 μg/m3 (67) 67.0
 
Sept. 21, 2020, 6 a.m. 11.3 ppb (10) 0.6 ppb (1) N/A 11.0 ppb (10) N/A N/A 22.0 ppb (17) N/A N/A 18.4 μg/m3 (64) 64.0
 
Sept. 21, 2020, 5 a.m. 11.6 ppb (11) 0.6 ppb (1) N/A 11.0 ppb (10) N/A N/A 25.0 ppb (19) N/A N/A 20.6 μg/m3 (68) 68.0
 
Sept. 21, 2020, 4 a.m. 12.0 ppb (11) 0.5 ppb (0) N/A 12.0 ppb (11) N/A N/A 26.0 ppb (20) N/A N/A 20.4 μg/m3 (68) 68.0
 
Sept. 21, 2020, 3 a.m. 8.5 ppb (8) 0.3 ppb (0) N/A 8.0 ppb (7) N/A N/A 40.0 ppb (31) N/A N/A 19.1 μg/m3 (65) 65.0
 
Sept. 21, 2020, 2 a.m. 8.9 ppb (8) 0.4 ppb (0) N/A 9.0 ppb (8) N/A N/A 45.0 ppb (35) N/A N/A 23.8 μg/m3 (75) 75.0
 
Sept. 21, 2020, 1 a.m. 7.5 ppb (7) 0.4 ppb (0) N/A 7.0 ppb (6) N/A N/A 53.0 ppb (41) N/A N/A 26.5 μg/m3 (81) 81.0
 
Sept. 21, 2020, midnight 7.9 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A N/A 74.0 ppb (57) N/A N/A 18.7 μg/m3 (64) 64.0
 
Sept. 20, 2020, 11 p.m. 7.5 ppb (7) 0.4 ppb (0) N/A 7.0 ppb (6) N/A N/A 86.0 ppb (68) N/A N/A 22.8 μg/m3 (73) 73.0
 
Sept. 20, 2020, 10 p.m. 7.6 ppb (7) 0.4 ppb (0) N/A 7.0 ppb (6) N/A N/A 88.0 ppb (69) N/A N/A 21.4 μg/m3 (70) 70.0
 
Sept. 20, 2020, 9 p.m. 7.8 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A N/A 86.0 ppb (68) N/A N/A 21.1 μg/m3 (69) 69.0
 
Sept. 20, 2020, 8 p.m. 7.2 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A N/A 79.0 ppb (62) N/A N/A 21.4 μg/m3 (70) 70.0
 
Sept. 20, 2020, 7 p.m. 10.2 ppb (9) 1.0 ppb (1) N/A 9.0 ppb (8) N/A N/A 75.0 ppb (58) N/A N/A 23.1 μg/m3 (74) 74.0
 
Sept. 20, 2020, 6 p.m. 11.9 ppb (11) 1.3 ppb (1) N/A 11.0 ppb (10) N/A N/A 69.0 ppb (53) N/A N/A 30.1 μg/m3 (89) 89.0
 
Sept. 20, 2020, 5 p.m. 12.2 ppb (11) 1.6 ppb (1) N/A 11.0 ppb (10) N/A N/A 54.0 ppb (42) N/A N/A 25.3 μg/m3 (78) 78.0
 
Sept. 20, 2020, 4 p.m. 18.7 ppb (17) 4.1 ppb (4) N/A 15.0 ppb (14) N/A N/A 36.0 ppb (28) N/A N/A 22.8 μg/m3 (73) 73.0
 
Sept. 20, 2020, 3 p.m. 28.9 ppb (27) 8.5 ppb (8) N/A 20.0 ppb (19) N/A N/A 20.0 ppb (15) N/A N/A 17.9 μg/m3 (63) 63.0
 
Sept. 20, 2020, 2 p.m. 33.2 ppb (31) 11.2 ppb (10) N/A 22.0 ppb (20) N/A N/A 7.0 ppb (5) N/A N/A 20.4 μg/m3 (68) 68.0
 
Sept. 20, 2020, 1 p.m. 24.3 ppb (23) 3.1 ppb (3) N/A 21.0 ppb (19) N/A N/A 3.0 ppb (2) N/A N/A 20.6 μg/m3 (68) 68.0
 
Sept. 20, 2020, noon 23.5 ppb (22) 2.3 ppb (2) N/A 21.0 ppb (19) N/A N/A 5.0 ppb (4) N/A N/A 19.6 μg/m3 (66) 66.0
 
Sept. 20, 2020, 11 a.m. 26.6 ppb (25) 1.7 ppb (2) N/A 25.0 ppb (23) N/A N/A 5.0 ppb (4) N/A N/A 19.8 μg/m3 (67) 67.0
 
Sept. 20, 2020, 10 a.m. 29.1 ppb (27) 1.6 ppb (1) N/A 28.0 ppb (26) N/A N/A 6.0 ppb (5) N/A N/A 19.6 μg/m3 (66) 66.0
 
Sept. 20, 2020, 9 a.m. 25.1 ppb (23) 1.2 ppb (1) N/A 24.0 ppb (22) N/A N/A 6.0 ppb (5) N/A N/A 21.1 μg/m3 (69) 69.0
 
Sept. 20, 2020, 8 a.m. 22.0 ppb (20) 1.2 ppb (1) N/A 21.0 ppb (19) N/A N/A 9.0 ppb (7) N/A N/A N/A 20.0
 
Sept. 20, 2020, 7 a.m. 21.7 ppb (20) 1.0 ppb (1) N/A 21.0 ppb (19) N/A N/A 11.0 ppb (8) N/A N/A 25.0 μg/m3 (78) 78.0
 
Sept. 20, 2020, 6 a.m. 19.9 ppb (18) 0.8 ppb (1) N/A 19.0 ppb (18) N/A N/A 18.0 ppb (14) N/A N/A 16.7 μg/m3 (60) 60.0
 
Sept. 20, 2020, 5 a.m. 19.8 ppb (18) 0.6 ppb (1) N/A 19.0 ppb (18) N/A N/A 21.0 ppb (16) N/A N/A 16.7 μg/m3 (60) 60.0
 
Sept. 20, 2020, 4 a.m. 17.4 ppb (16) 0.5 ppb (0) N/A 17.0 ppb (16) N/A N/A 26.0 ppb (20) N/A N/A 17.4 μg/m3 (61) 61.0
 
Sept. 20, 2020, 3 a.m. 13.6 ppb (13) 0.3 ppb (0) N/A 13.0 ppb (12) N/A N/A 34.0 ppb (26) N/A N/A 13.7 μg/m3 (54) 54.0
 
Sept. 20, 2020, 2 a.m. 9.0 ppb (8) 0.2 ppb (0) N/A 9.0 ppb (8) N/A N/A 47.0 ppb (36) N/A N/A 11.1 μg/m3 (46) 46.0
 
Sept. 20, 2020, 1 a.m. 8.4 ppb (8) 0.3 ppb (0) N/A 8.0 ppb (7) N/A N/A 55.0 ppb (42) N/A N/A 11.3 μg/m3 (47) 47.0
 
Sept. 20, 2020, midnight 7.4 ppb (7) 0.6 ppb (1) N/A 7.0 ppb (6) N/A N/A 61.0 ppb (47) N/A N/A 13.3 μg/m3 (53) 53.0
 
Sept. 19, 2020, 11 p.m. 6.7 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 67.0 ppb (52) N/A N/A 13.3 μg/m3 (53) 53.0
 
Sept. 19, 2020, 10 p.m. 7.1 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A N/A 80.0 ppb (62) N/A N/A 11.8 μg/m3 (49) 62.0
 
Sept. 19, 2020, 9 p.m. 7.7 ppb (7) 0.7 ppb (1) N/A 7.0 ppb (6) N/A N/A 78.0 ppb (61) N/A N/A 12.5 μg/m3 (51) 61.0
 
Sept. 19, 2020, 8 p.m. 10.2 ppb (9) 0.9 ppb (1) N/A 9.0 ppb (8) N/A N/A 77.0 ppb (60) N/A N/A 18.7 μg/m3 (64) 64.0
 
Sept. 19, 2020, 7 p.m. 14.7 ppb (14) 1.7 ppb (2) N/A 13.0 ppb (12) N/A N/A 72.0 ppb (56) N/A N/A 21.1 μg/m3 (69) 69.0
 
Sept. 19, 2020, 6 p.m. 20.7 ppb (19) 3.2 ppb (3) N/A 18.0 ppb (17) N/A N/A 60.0 ppb (46) N/A N/A 24.1 μg/m3 (76) 76.0
 
Sept. 19, 2020, 5 p.m. 19.7 ppb (18) 3.4 ppb (3) N/A 16.0 ppb (15) N/A N/A 51.0 ppb (39) N/A N/A 21.8 μg/m3 (71) 71.0
 
Sept. 19, 2020, 4 p.m. 25.4 ppb (24) 6.3 ppb (6) N/A 19.0 ppb (18) N/A N/A 31.0 ppb (24) N/A N/A 27.7 μg/m3 (83) 83.0
 
Sept. 19, 2020, 3 p.m. 29.7 ppb (28) 7.9 ppb (7) N/A 22.0 ppb (20) N/A N/A 19.0 ppb (15) N/A N/A 26.2 μg/m3 (80) 80.0
 
Sept. 19, 2020, 2 p.m. 36.8 ppb (34) 10.5 ppb (10) N/A 26.0 ppb (24) N/A N/A 8.0 ppb (6) N/A N/A 19.8 μg/m3 (67) 67.0
 
Sept. 19, 2020, 1 p.m. 36.7 ppb (34) 7.5 ppb (7) N/A 29.0 ppb (27) N/A N/A 2.0 ppb (2) N/A N/A 22.1 μg/m3 (71) 71.0
 
Sept. 19, 2020, noon 45.7 ppb (42) 15.1 ppb (14) N/A 31.0 ppb (29) N/A N/A 2.0 ppb (2) N/A N/A 21.3 μg/m3 (70) 70.0
 
Sept. 19, 2020, 11 a.m. 37.3 ppb (35) 4.5 ppb (4) N/A 33.0 ppb (31) N/A N/A 3.0 ppb (2) N/A N/A 22.5 μg/m3 (72) 72.0
 
Sept. 19, 2020, 10 a.m. 37.8 ppb (35) 4.3 ppb (4) N/A 34.0 ppb (31) N/A N/A 3.0 ppb (2) N/A N/A 26.7 μg/m3 (81) 81.0
 
Sept. 19, 2020, 9 a.m. 32.7 ppb (30) 1.8 ppb (2) N/A 31.0 ppb (29) N/A N/A 6.0 ppb (5) N/A N/A 24.3 μg/m3 (76) 76.0
 
Sept. 19, 2020, 8 a.m. 31.5 ppb (29) 1.3 ppb (1) N/A 30.0 ppb (28) N/A N/A 8.0 ppb (6) N/A N/A 22.5 μg/m3 (72) 72.0
 
Sept. 19, 2020, 7 a.m. 25.9 ppb (24) 0.7 ppb (1) N/A 25.0 ppb (23) N/A N/A 16.0 ppb (12) N/A N/A 17.7 μg/m3 (62) 62.0
 
Sept. 19, 2020, 6 a.m. 28.6 ppb (26) 0.9 ppb (1) N/A 28.0 ppb (26) N/A N/A 16.0 ppb (12) N/A N/A 21.6 μg/m3 (70) 70.0
 
Sept. 19, 2020, 5 a.m. 11.4 ppb (11) 0.2 ppb (0) N/A 11.0 ppb (10) N/A N/A 44.0 ppb (34) N/A N/A N/A 34.0
 
Sept. 19, 2020, 4 a.m. 22.4 ppb (21) 0.3 ppb (0) N/A 22.0 ppb (20) N/A N/A 37.0 ppb (28) N/A N/A 59.4 μg/m3 (152) 152.0
 
Sept. 19, 2020, 3 a.m. 27.3 ppb (25) 0.3 ppb (0) N/A 27.0 ppb (25) N/A N/A 39.0 ppb (30) N/A N/A 27.7 μg/m3 (83) 83.0
 
Sept. 19, 2020, 2 a.m. 17.1 ppb (16) 0.2 ppb (0) N/A 17.0 ppb (16) N/A N/A 61.0 ppb (47) N/A N/A 23.5 μg/m3 (74) 74.0
 
Sept. 19, 2020, 1 a.m. 9.6 ppb (9) 0.2 ppb (0) N/A 9.0 ppb (8) N/A N/A 80.0 ppb (62) N/A N/A 17.0 μg/m3 (61) 62.0
 
Sept. 19, 2020, midnight 9.1 ppb (8) 0.3 ppb (0) N/A 9.0 ppb (8) N/A N/A 85.0 ppb (67) N/A N/A 19.6 μg/m3 (66) 67.0
 
Sept. 18, 2020, 11 p.m. 10.3 ppb (10) 0.6 ppb (1) N/A 10.0 ppb (9) N/A N/A 89.0 ppb (70) N/A N/A 12.1 μg/m3 (50) 70.0
 
Sept. 18, 2020, 10 p.m. 12.6 ppb (12) 0.8 ppb (1) N/A 12.0 ppb (11) N/A N/A 93.0 ppb (73) N/A N/A 14.0 μg/m3 (54) 73.0
 
Sept. 18, 2020, 9 p.m. 14.6 ppb (14) 0.8 ppb (1) N/A 14.0 ppb (13) N/A N/A 96.0 ppb (76) N/A N/A 15.4 μg/m3 (57) 76.0
 
Sept. 18, 2020, 8 p.m. 21.4 ppb (20) 1.8 ppb (2) N/A 20.0 ppb (19) N/A N/A 91.0 ppb (72) N/A N/A 22.1 μg/m3 (71) 72.0
 
Sept. 18, 2020, 7 p.m. 20.3 ppb (19) 1.9 ppb (2) N/A 18.0 ppb (17) N/A N/A 83.0 ppb (65) N/A N/A 23.6 μg/m3 (75) 75.0
 
Sept. 18, 2020, 6 p.m. 24.4 ppb (23) 2.1 ppb (2) N/A 22.0 ppb (20) N/A N/A 91.0 ppb (72) N/A N/A 37.7 μg/m3 (106) 106.0
 
Sept. 18, 2020, 5 p.m. 35.6 ppb (33) 5.3 ppb (5) N/A 30.0 ppb (28) N/A N/A 62.0 ppb (48) N/A N/A 39.9 μg/m3 (111) 111.0
 
Sept. 18, 2020, 4 p.m. 65.7 ppb (62) 20.9 ppb (19) N/A 45.0 ppb (42) N/A N/A 22.0 ppb (17) N/A N/A 24.5 μg/m3 (77) 77.0