ID: 7872

AQSQID: 840060374010

Site Name: North Holywood

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

Updated: Jan. 20, 2021, 9:31 a.m.

Location: N Hollywood (N Hollywood), CA

Reporting: True, Located: True

Current AQI: 38.0

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
Jan. 20, 2021, 8 a.m. 1.3 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (38) N/A N/A 5.3 μg/m3 (23) 38.0
 
Jan. 20, 2021, 7 a.m. 1.7 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) N/A N/A 6.3 μg/m3 (27) 38.0
 
Jan. 20, 2021, 6 a.m. 1.9 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) N/A N/A 5.8 μg/m3 (25) 38.0
 
Jan. 20, 2021, 5 a.m. 2.3 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) N/A N/A 4.8 μg/m3 (20) 38.0
 
Jan. 20, 2021, 4 a.m. 4.1 ppb (4) 0.3 ppb (1) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (36) N/A N/A 5.1 μg/m3 (22) 36.0
 
Jan. 20, 2021, 3 a.m. 3.3 ppb (4) 0.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (37) N/A N/A 6.8 μg/m3 (29) 37.0
 
Jan. 20, 2021, 2 a.m. 2.4 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) N/A N/A 7.8 μg/m3 (33) 38.0
 
Jan. 20, 2021, 1 a.m. 2.6 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) N/A N/A 5.6 μg/m3 (24) 38.0
 
Jan. 20, 2021, midnight 2.6 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) N/A N/A 3.8 μg/m3 (16) 38.0
 
Jan. 19, 2021, 11 p.m. 2.5 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (38) N/A N/A 4.8 μg/m3 (20) 38.0
 
Jan. 19, 2021, 10 p.m. 2.4 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (38) N/A N/A 5.1 μg/m3 (22) 38.0
 
Jan. 19, 2021, 9 p.m. 2.8 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (38) N/A N/A 4.6 μg/m3 (20) 38.0
 
Jan. 19, 2021, 8 p.m. 2.6 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (38) N/A N/A 6.0 μg/m3 (25) 38.0
 
Jan. 19, 2021, 7 p.m. 2.5 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (38) N/A N/A 8.5 μg/m3 (36) 38.0
 
Jan. 19, 2021, 6 p.m. 3.1 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) N/A N/A 11.9 μg/m3 (50) 50.0
 
Jan. 19, 2021, 5 p.m. 19.8 ppb (19) 4.9 ppb (5) N/A 15.0 ppb (15) N/A N/A 26.0 ppb (25) N/A N/A 14.1 μg/m3 (56) 56.0
 
Jan. 19, 2021, 4 p.m. 25.5 ppb (25) 4.4 ppb (5) N/A 21.0 ppb (20) N/A N/A 17.0 ppb (16) N/A N/A 27.8 μg/m3 (85) 85.0
 
Jan. 19, 2021, 3 p.m. 17.8 ppb (17) 1.9 ppb (2) N/A 16.0 ppb (16) N/A N/A 18.0 ppb (17) N/A N/A 21.2 μg/m3 (71) 71.0
 
Jan. 19, 2021, 2 p.m. 12.5 ppb (12) 0.9 ppb (1) N/A 12.0 ppb (12) N/A N/A 25.0 ppb (24) N/A N/A 22.7 μg/m3 (74) 74.0
 
Jan. 19, 2021, 1 p.m. 23.1 ppb (22) 6.6 ppb (7) N/A 17.0 ppb (17) N/A N/A 22.0 ppb (21) N/A N/A 21.9 μg/m3 (72) 72.0
 
Jan. 19, 2021, noon 8.1 ppb (8) 0.8 ppb (1) N/A 7.0 ppb (7) N/A N/A 32.0 ppb (30) N/A N/A 19.7 μg/m3 (67) 67.0
 
Jan. 19, 2021, 11 a.m. 6.8 ppb (7) 0.5 ppb (1) N/A 6.0 ppb (6) N/A N/A 37.0 ppb (35) N/A N/A 19.7 μg/m3 (67) 67.0
 
Jan. 19, 2021, 10 a.m. 8.1 ppb (8) 0.6 ppb (1) N/A 8.0 ppb (8) N/A N/A 36.0 ppb (34) N/A N/A 29.3 μg/m3 (88) 88.0
 
Jan. 19, 2021, 9 a.m. 11.0 ppb (11) 0.7 ppb (1) N/A 10.0 ppb (10) N/A N/A 33.0 ppb (31) N/A N/A 27.8 μg/m3 (85) 85.0
 
Jan. 19, 2021, 8 a.m. 15.0 ppb (15) 1.0 ppb (1) N/A 14.0 ppb (14) N/A N/A 27.0 ppb (25) N/A N/A 35.4 μg/m3 (100) 100.0
 
Jan. 19, 2021, 7 a.m. 22.6 ppb (22) 1.6 ppb (2) N/A 21.0 ppb (20) N/A N/A 13.0 ppb (13) N/A N/A 30.8 μg/m3 (91) 91.0
 
Jan. 19, 2021, 6 a.m. 20.2 ppb (20) 1.4 ppb (2) N/A 19.0 ppb (18) N/A N/A 13.0 ppb (13) N/A N/A 25.4 μg/m3 (79) 79.0
 
Jan. 19, 2021, 5 a.m. 18.8 ppb (18) 1.3 ppb (2) N/A 18.0 ppb (17) N/A N/A 15.0 ppb (14) N/A N/A 24.7 μg/m3 (78) 78.0
 
Jan. 19, 2021, 4 a.m. 27.1 ppb (26) 1.4 ppb (2) N/A 26.0 ppb (25) N/A N/A 13.0 ppb (13) N/A N/A 20.6 μg/m3 (69) 69.0
 
Jan. 19, 2021, 3 a.m. 41.8 ppb (40) 2.6 ppb (3) N/A 39.0 ppb (37) N/A N/A 10.0 ppb (10) N/A N/A 11.2 μg/m3 (47) 47.0
 
Jan. 19, 2021, 2 a.m. 19.5 ppb (19) 0.8 ppb (1) N/A 19.0 ppb (18) N/A N/A 24.0 ppb (23) N/A N/A 1.9 μg/m3 (8) 23.0
 
Jan. 19, 2021, 1 a.m. 8.8 ppb (9) 0.3 ppb (1) N/A 9.0 ppb (9) N/A N/A 35.0 ppb (33) N/A N/A 1.7 μg/m3 (8) 33.0
 
Jan. 19, 2021, midnight 7.8 ppb (8) 0.5 ppb (1) N/A 7.0 ppb (7) N/A N/A 40.0 ppb (38) N/A N/A 6.1 μg/m3 (26) 38.0
 
Jan. 18, 2021, 11 p.m. 9.5 ppb (9) 1.2 ppb (2) N/A 8.0 ppb (8) N/A N/A 46.0 ppb (43) N/A N/A 9.3 μg/m3 (39) 43.0
 
Jan. 18, 2021, 10 p.m. 16.0 ppb (16) 2.5 ppb (3) N/A 14.0 ppb (14) N/A N/A 50.0 ppb (47) N/A N/A 11.0 μg/m3 (46) 47.0
 
Jan. 18, 2021, 9 p.m. 20.8 ppb (20) 4.0 ppb (4) N/A 17.0 ppb (17) N/A N/A 47.0 ppb (44) N/A N/A 8.1 μg/m3 (34) 44.0
 
Jan. 18, 2021, 8 p.m. 26.9 ppb (26) 6.6 ppb (7) N/A 20.0 ppb (19) N/A N/A 38.0 ppb (36) N/A N/A 9.8 μg/m3 (41) 41.0
 
Jan. 18, 2021, 7 p.m. 23.5 ppb (23) 6.3 ppb (6) N/A 17.0 ppb (17) N/A N/A 35.0 ppb (33) N/A N/A 12.4 μg/m3 (52) 52.0
 
Jan. 18, 2021, 6 p.m. 39.1 ppb (37) 14.0 ppb (14) N/A 25.0 ppb (24) N/A N/A 26.0 ppb (25) N/A N/A 11.6 μg/m3 (49) 49.0
 
Jan. 18, 2021, 5 p.m. 88.8 ppb (89) 47.7 ppb (45) N/A 41.0 ppb (39) N/A N/A 11.0 ppb (11) N/A N/A 19.9 μg/m3 (68) 89.0
 
Jan. 18, 2021, 4 p.m. 113.7 ppb (104) 77.8 ppb (77) N/A 36.0 ppb (34) N/A N/A 3.0 ppb (3) N/A N/A 17.2 μg/m3 (62) 104.0
 
Jan. 18, 2021, 3 p.m. 108.0 ppb (103) 77.7 ppb (77) N/A 30.0 ppb (29) N/A N/A 1.0 ppb (1) N/A N/A 15.0 μg/m3 (58) 103.0
 
Jan. 18, 2021, 2 p.m. 70.5 ppb (69) 45.7 ppb (44) N/A 25.0 ppb (24) N/A N/A 0.0 ppb (0) N/A N/A 14.5 μg/m3 (57) 69.0
 
Jan. 18, 2021, 1 p.m. 62.0 ppb (60) 36.3 ppb (35) N/A 26.0 ppb (25) N/A N/A 1.0 ppb (1) N/A N/A 15.2 μg/m3 (58) 60.0
 
Jan. 18, 2021, noon 60.7 ppb (59) 33.7 ppb (32) N/A 27.0 ppb (26) N/A N/A 1.0 ppb (1) N/A N/A 13.8 μg/m3 (55) 59.0
 
Jan. 18, 2021, 11 a.m. 57.8 ppb (56) 29.0 ppb (28) N/A 29.0 ppb (28) N/A N/A 1.0 ppb (1) N/A N/A 14.0 μg/m3 (55) 56.0
 
Jan. 18, 2021, 10 a.m. 61.6 ppb (60) 31.6 ppb (30) N/A 30.0 ppb (29) N/A N/A 1.0 ppb (1) N/A N/A 13.6 μg/m3 (55) 60.0
 
Jan. 18, 2021, 9 a.m. 63.7 ppb (62) 32.1 ppb (31) N/A 32.0 ppb (31) N/A N/A 2.0 ppb (2) N/A N/A 19.0 μg/m3 (66) 66.0
 
Jan. 18, 2021, 8 a.m. 72.4 ppb (71) 40.1 ppb (38) N/A 32.0 ppb (31) N/A N/A 2.0 ppb (2) N/A N/A 24.6 μg/m3 (78) 78.0
 
Jan. 18, 2021, 7 a.m. 65.1 ppb (63) 28.7 ppb (28) N/A 36.0 ppb (34) N/A N/A 2.0 ppb (2) N/A N/A 23.7 μg/m3 (76) 76.0
 
Jan. 18, 2021, 6 a.m. 71.1 ppb (70) 33.5 ppb (32) N/A 38.0 ppb (36) N/A N/A 2.0 ppb (2) N/A N/A 22.0 μg/m3 (72) 72.0
 
Jan. 18, 2021, 5 a.m. 59.7 ppb (58) 20.3 ppb (20) N/A 39.0 ppb (37) N/A N/A 2.0 ppb (2) N/A N/A 25.4 μg/m3 (79) 79.0
 
Jan. 18, 2021, 4 a.m. 54.9 ppb (52) 13.6 ppb (13) N/A 41.0 ppb (39) N/A N/A 2.0 ppb (2) N/A N/A 19.1 μg/m3 (66) 66.0
 
Jan. 18, 2021, 3 a.m. 48.8 ppb (47) 7.2 ppb (7) N/A 42.0 ppb (40) N/A N/A 6.0 ppb (6) N/A N/A 19.6 μg/m3 (67) 67.0
 
Jan. 18, 2021, 2 a.m. 27.9 ppb (27) 1.5 ppb (2) N/A 26.0 ppb (25) N/A N/A 22.0 ppb (21) N/A N/A 13.7 μg/m3 (55) 55.0
 
Jan. 18, 2021, 1 a.m. 10.9 ppb (11) 0.3 ppb (1) N/A 11.0 ppb (11) N/A N/A 45.0 ppb (42) N/A N/A 10.8 μg/m3 (46) 46.0
 
Jan. 18, 2021, midnight 9.1 ppb (9) 0.5 ppb (1) N/A 9.0 ppb (9) N/A N/A 53.0 ppb (50) N/A N/A 7.8 μg/m3 (33) 50.0
 
Jan. 17, 2021, 11 p.m. 8.5 ppb (9) 0.9 ppb (1) N/A 8.0 ppb (8) N/A N/A 55.0 ppb (51) N/A N/A 2.9 μg/m3 (13) 51.0
 
Jan. 17, 2021, 10 p.m. 5.4 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 53.0 ppb (50) N/A N/A 2.9 μg/m3 (13) 50.0
 
Jan. 17, 2021, 9 p.m. 3.9 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 56.0 ppb (55) N/A N/A 4.8 μg/m3 (20) 55.0
 
Jan. 17, 2021, 8 p.m. 4.9 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 51.0 ppb (48) N/A N/A 4.6 μg/m3 (20) 48.0
 
Jan. 17, 2021, 7 p.m. 10.7 ppb (11) 2.4 ppb (3) N/A 8.0 ppb (8) N/A N/A 43.0 ppb (40) N/A N/A 6.3 μg/m3 (27) 40.0
 
Jan. 17, 2021, 6 p.m. 19.1 ppb (19) 5.2 ppb (5) N/A 14.0 ppb (14) N/A N/A 34.0 ppb (32) N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 17, 2021, 5 p.m. 35.7 ppb (34) 12.3 ppb (12) N/A 23.0 ppb (22) N/A N/A 21.0 ppb (20) N/A N/A 8.7 μg/m3 (37) 37.0
 
Jan. 17, 2021, 4 p.m. 53.4 ppb (51) 25.5 ppb (25) N/A 28.0 ppb (27) N/A N/A 9.0 ppb (9) N/A N/A 7.9 μg/m3 (33) 51.0
 
Jan. 17, 2021, 3 p.m. 43.9 ppb (42) 19.9 ppb (19) N/A 24.0 ppb (23) N/A N/A 2.0 ppb (2) N/A N/A 10.1 μg/m3 (43) 43.0
 
Jan. 17, 2021, 2 p.m. 45.1 ppb (43) 19.6 ppb (19) N/A 25.0 ppb (24) N/A N/A 1.0 ppb (1) N/A N/A 11.4 μg/m3 (48) 48.0
 
Jan. 17, 2021, 1 p.m. 41.0 ppb (39) 15.9 ppb (15) N/A 25.0 ppb (24) N/A N/A 1.0 ppb (1) N/A N/A 10.6 μg/m3 (45) 45.0
 
Jan. 17, 2021, noon 40.0 ppb (38) 14.2 ppb (14) N/A 26.0 ppb (25) N/A N/A 1.0 ppb (1) N/A N/A 12.8 μg/m3 (53) 53.0
 
Jan. 17, 2021, 11 a.m. 43.6 ppb (42) 17.1 ppb (17) N/A 26.0 ppb (25) N/A N/A 1.0 ppb (1) N/A N/A 14.3 μg/m3 (56) 56.0
 
Jan. 17, 2021, 10 a.m. 45.1 ppb (43) 18.5 ppb (18) N/A 27.0 ppb (26) N/A N/A 1.0 ppb (1) N/A N/A 14.1 μg/m3 (56) 56.0
 
Jan. 17, 2021, 9 a.m. 57.3 ppb (55) 27.6 ppb (27) N/A 30.0 ppb (29) N/A N/A 1.0 ppb (1) N/A N/A 15.4 μg/m3 (58) 58.0
 
Jan. 17, 2021, 8 a.m. 77.8 ppb (77) 43.7 ppb (42) N/A 34.0 ppb (33) N/A N/A 2.0 ppb (2) N/A N/A 22.9 μg/m3 (74) 77.0
 
Jan. 17, 2021, 7 a.m. 75.7 ppb (75) 35.6 ppb (34) N/A 40.0 ppb (38) N/A N/A 2.0 ppb (2) N/A N/A 25.9 μg/m3 (81) 81.0
 
Jan. 17, 2021, 6 a.m. 69.6 ppb (68) 28.0 ppb (27) N/A 42.0 ppb (40) N/A N/A 2.0 ppb (2) N/A N/A 33.2 μg/m3 (96) 96.0
 
Jan. 17, 2021, 5 a.m. 72.0 ppb (71) 28.6 ppb (27) N/A 43.0 ppb (41) N/A N/A 3.0 ppb (3) N/A N/A 31.5 μg/m3 (92) 92.0
 
Jan. 17, 2021, 4 a.m. 62.5 ppb (61) 17.8 ppb (17) N/A 45.0 ppb (43) N/A N/A 2.0 ppb (2) N/A N/A 27.6 μg/m3 (84) 84.0
 
Jan. 17, 2021, 3 a.m. 57.9 ppb (56) 12.1 ppb (12) N/A 46.0 ppb (44) N/A N/A 3.0 ppb (3) N/A N/A 23.5 μg/m3 (75) 75.0
 
Jan. 17, 2021, 2 a.m. 52.4 ppb (50) 6.8 ppb (7) N/A 46.0 ppb (44) N/A N/A 5.0 ppb (5) N/A N/A 19.1 μg/m3 (66) 66.0
 
Jan. 17, 2021, 1 a.m. 24.2 ppb (23) 0.6 ppb (1) N/A 24.0 ppb (23) N/A N/A 33.0 ppb (31) N/A N/A 9.3 μg/m3 (39) 39.0
 
Jan. 17, 2021, midnight 19.3 ppb (19) 0.9 ppb (1) N/A 18.0 ppb (17) N/A N/A 46.0 ppb (43) N/A N/A 6.6 μg/m3 (28) 43.0
 
Jan. 16, 2021, 11 p.m. 16.5 ppb (16) 1.5 ppb (2) N/A 15.0 ppb (15) N/A N/A 59.0 ppb (65) N/A N/A 6.3 μg/m3 (27) 65.0
 
Jan. 16, 2021, 10 p.m. 20.1 ppb (19) 2.7 ppb (3) N/A 17.0 ppb (17) N/A N/A 55.0 ppb (51) N/A N/A 7.8 μg/m3 (33) 51.0
 
Jan. 16, 2021, 9 p.m. 24.1 ppb (23) 4.4 ppb (5) N/A 20.0 ppb (19) N/A N/A 50.0 ppb (47) N/A N/A 7.6 μg/m3 (32) 47.0
 
Jan. 16, 2021, 8 p.m. 14.7 ppb (14) 3.0 ppb (3) N/A 12.0 ppb (12) N/A N/A 47.0 ppb (44) N/A N/A 6.8 μg/m3 (29) 44.0
 
Jan. 16, 2021, 7 p.m. 17.6 ppb (17) 4.2 ppb (4) N/A 13.0 ppb (13) N/A N/A 40.0 ppb (38) N/A N/A 6.6 μg/m3 (28) 38.0
 
Jan. 16, 2021, 6 p.m. 26.0 ppb (25) 7.5 ppb (8) N/A 19.0 ppb (18) N/A N/A 31.0 ppb (29) N/A N/A 7.8 μg/m3 (33) 33.0
 
Jan. 16, 2021, 5 p.m. 38.9 ppb (37) 14.9 ppb (15) N/A 24.0 ppb (23) N/A N/A 19.0 ppb (18) N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 16, 2021, 4 p.m. 47.5 ppb (45) 20.0 ppb (19) N/A 28.0 ppb (27) N/A N/A 11.0 ppb (11) N/A N/A 8.9 μg/m3 (38) 45.0
 
Jan. 16, 2021, 3 p.m. 64.7 ppb (63) 35.0 ppb (34) N/A 30.0 ppb (29) N/A N/A 2.0 ppb (2) N/A N/A 7.7 μg/m3 (33) 63.0
 
Jan. 16, 2021, 2 p.m. 33.4 ppb (32) 7.7 ppb (8) N/A 26.0 ppb (25) N/A N/A 2.0 ppb (2) N/A N/A 7.7 μg/m3 (33) 33.0
 
Jan. 16, 2021, 1 p.m. 18.1 ppb (18) 1.0 ppb (1) N/A 17.0 ppb (17) N/A N/A 12.0 ppb (12) N/A N/A 7.5 μg/m3 (32) 32.0
 
Jan. 16, 2021, noon 19.0 ppb (18) 1.1 ppb (2) N/A 18.0 ppb (17) N/A N/A 14.0 ppb (13) N/A N/A 5.5 μg/m3 (23) 23.0
 
Jan. 16, 2021, 11 a.m. 26.5 ppb (25) 2.0 ppb (2) N/A 25.0 ppb (24) N/A N/A 7.0 ppb (7) N/A N/A 8.4 μg/m3 (36) 36.0
 
Jan. 16, 2021, 10 a.m. 39.4 ppb (38) 9.7 ppb (10) N/A 30.0 ppb (29) N/A N/A 3.0 ppb (3) N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 16, 2021, 9 a.m. 50.5 ppb (48) 18.9 ppb (18) N/A 32.0 ppb (31) N/A N/A 1.0 ppb (1) N/A N/A 11.9 μg/m3 (50) 50.0
 
Jan. 16, 2021, 8 a.m. 60.6 ppb (59) 26.1 ppb (25) N/A 35.0 ppb (34) N/A N/A 2.0 ppb (2) N/A N/A 17.3 μg/m3 (62) 62.0
 
Jan. 16, 2021, 7 a.m. 74.4 ppb (73) 37.3 ppb (36) N/A 37.0 ppb (35) N/A N/A 2.0 ppb (2) N/A N/A 17.1 μg/m3 (62) 73.0
 
Jan. 16, 2021, 6 a.m. 76.4 ppb (75) 36.4 ppb (35) N/A 40.0 ppb (38) N/A N/A 2.0 ppb (2) N/A N/A 16.4 μg/m3 (61) 75.0
 
Jan. 16, 2021, 5 a.m. 101.0 ppb (101) 53.7 ppb (51) N/A 47.0 ppb (45) N/A N/A 2.0 ppb (2) N/A N/A 23.7 μg/m3 (76) 101.0
 
Jan. 16, 2021, 4 a.m. 85.6 ppb (85) 36.5 ppb (35) N/A 49.0 ppb (47) N/A N/A 2.0 ppb (2) N/A N/A 25.4 μg/m3 (79) 85.0
 
Jan. 16, 2021, 3 a.m. 63.7 ppb (62) 15.6 ppb (15) N/A 48.0 ppb (46) N/A N/A 3.0 ppb (3) N/A N/A 25.0 μg/m3 (79) 79.0
 
Jan. 16, 2021, 2 a.m. 55.9 ppb (54) 5.8 ppb (6) N/A 50.0 ppb (48) N/A N/A 6.0 ppb (6) N/A N/A 25.0 μg/m3 (79) 79.0
 
Jan. 16, 2021, 1 a.m. 35.0 ppb (34) 0.7 ppb (1) N/A 34.0 ppb (33) N/A N/A 26.0 ppb (25) N/A N/A 9.3 μg/m3 (39) 39.0
 
Jan. 16, 2021, midnight 16.8 ppb (16) 0.8 ppb (1) N/A 16.0 ppb (16) N/A N/A 39.0 ppb (37) N/A N/A 6.8 μg/m3 (29) 37.0
 
Jan. 15, 2021, 11 p.m. 16.2 ppb (16) 1.9 ppb (2) N/A 14.0 ppb (14) N/A N/A 49.0 ppb (46) N/A N/A 7.6 μg/m3 (32) 46.0
 
Jan. 15, 2021, 10 p.m. 21.3 ppb (21) 3.4 ppb (4) N/A 18.0 ppb (17) N/A N/A 52.0 ppb (49) N/A N/A 8.1 μg/m3 (34) 49.0
 
Jan. 15, 2021, 9 p.m. 24.8 ppb (24) 4.9 ppb (5) N/A 20.0 ppb (19) N/A N/A 47.0 ppb (44) N/A N/A 8.5 μg/m3 (36) 44.0
 
Jan. 15, 2021, 8 p.m. 28.3 ppb (27) 6.9 ppb (7) N/A 21.0 ppb (20) N/A N/A 39.0 ppb (37) N/A N/A 7.2 μg/m3 (31) 37.0
 
Jan. 15, 2021, 7 p.m. 29.7 ppb (29) 8.7 ppb (9) N/A 21.0 ppb (20) N/A N/A 31.0 ppb (29) N/A N/A 6.6 μg/m3 (28) 29.0
 
Jan. 15, 2021, 6 p.m. 31.2 ppb (30) 10.1 ppb (10) N/A 21.0 ppb (20) N/A N/A 27.0 ppb (25) N/A N/A 7.1 μg/m3 (30) 30.0
 
Jan. 15, 2021, 5 p.m. 39.1 ppb (37) 14.3 ppb (14) N/A 25.0 ppb (24) N/A N/A 20.0 ppb (19) N/A N/A 7.1 μg/m3 (30) 37.0
 
Jan. 15, 2021, 4 p.m. 21.0 ppb (20) 4.2 ppb (4) N/A 17.0 ppb (17) N/A N/A 26.0 ppb (25) N/A N/A 4.6 μg/m3 (20) 25.0
 
Jan. 15, 2021, 3 p.m. 15.1 ppb (15) 1.4 ppb (2) N/A 14.0 ppb (14) N/A N/A 30.0 ppb (28) N/A N/A 3.2 μg/m3 (14) 28.0
 
Jan. 15, 2021, 2 p.m. 7.7 ppb (8) 0.3 ppb (1) N/A 7.0 ppb (7) N/A N/A 35.0 ppb (33) N/A N/A 2.9 μg/m3 (13) 33.0
 
Jan. 15, 2021, 1 p.m. 8.5 ppb (9) 0.3 ppb (1) N/A 8.0 ppb (8) N/A N/A 31.0 ppb (29) N/A N/A 1.7 μg/m3 (8) 29.0
 
Jan. 15, 2021, noon 4.5 ppb (5) 0.3 ppb (1) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (35) N/A N/A 4.4 μg/m3 (19) 35.0
 
Jan. 15, 2021, 11 a.m. 5.7 ppb (6) 0.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 34.0 ppb (32) N/A N/A 4.4 μg/m3 (19) 32.0
 
Jan. 15, 2021, 10 a.m. 7.0 ppb (7) 0.4 ppb (1) N/A 7.0 ppb (7) N/A N/A 32.0 ppb (30) N/A N/A 2.0 μg/m3 (9) 30.0
 
Jan. 15, 2021, 9 a.m. 5.2 ppb (5) 0.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 34.0 ppb (32) N/A N/A 4.4 μg/m3 (19) 32.0
 
Jan. 15, 2021, 8 a.m. 5.3 ppb (5) 0.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 36.0 ppb (34) N/A N/A 6.1 μg/m3 (26) 34.0
 
Jan. 15, 2021, 7 a.m. 13.1 ppb (13) 0.6 ppb (1) N/A 12.0 ppb (12) N/A N/A 25.0 ppb (24) N/A N/A 3.9 μg/m3 (17) 24.0
 
Jan. 15, 2021, 6 a.m. 7.7 ppb (8) 0.4 ppb (1) N/A 7.0 ppb (7) N/A N/A 32.0 ppb (30) N/A N/A 2.7 μg/m3 (12) 30.0
 
Jan. 15, 2021, 5 a.m. 11.5 ppb (11) 0.5 ppb (1) N/A 11.0 ppb (11) N/A N/A 28.0 ppb (26) N/A N/A 8.3 μg/m3 (35) 35.0
 
Jan. 15, 2021, 4 a.m. 36.5 ppb (35) 9.8 ppb (10) N/A 27.0 ppb (26) N/A N/A 17.0 ppb (16) N/A N/A 13.7 μg/m3 (55) 55.0
 
Jan. 15, 2021, 3 a.m. 82.4 ppb (82) 32.4 ppb (31) N/A 50.0 ppb (48) N/A N/A 2.0 ppb (2) N/A N/A 19.8 μg/m3 (68) 82.0
 
Jan. 15, 2021, 2 a.m. 69.5 ppb (68) 19.0 ppb (18) N/A 50.0 ppb (48) N/A N/A 2.0 ppb (2) N/A N/A 15.2 μg/m3 (58) 68.0
 
Jan. 15, 2021, 1 a.m. 54.5 ppb (52) 5.0 ppb (5) N/A 50.0 ppb (48) N/A N/A 7.0 ppb (7) N/A N/A 11.0 μg/m3 (46) 52.0
 
Jan. 15, 2021, midnight 33.7 ppb (32) 2.3 ppb (3) N/A 31.0 ppb (30) N/A N/A 30.0 ppb (28) N/A N/A 8.3 μg/m3 (35) 35.0
 
Jan. 14, 2021, 11 p.m. 25.9 ppb (25) 3.4 ppb (4) N/A 23.0 ppb (22) N/A N/A 41.0 ppb (38) N/A N/A 6.6 μg/m3 (28) 38.0
 
Jan. 14, 2021, 10 p.m. 24.7 ppb (24) 4.4 ppb (5) N/A 20.0 ppb (19) N/A N/A 46.0 ppb (43) N/A N/A 8.1 μg/m3 (34) 43.0
 
Jan. 14, 2021, 9 p.m. 23.7 ppb (23) 4.9 ppb (5) N/A 19.0 ppb (18) N/A N/A 43.0 ppb (40) N/A N/A 8.1 μg/m3 (34) 40.0
 
Jan. 14, 2021, 8 p.m. 27.2 ppb (26) 7.2 ppb (7) N/A 20.0 ppb (19) N/A N/A 35.0 ppb (33) N/A N/A 7.1 μg/m3 (30) 33.0
 
Jan. 14, 2021, 7 p.m. 32.9 ppb (32) 11.0 ppb (11) N/A 22.0 ppb (21) N/A N/A 28.0 ppb (26) N/A N/A 10.8 μg/m3 (46) 46.0
 
Jan. 14, 2021, 6 p.m. 68.3 ppb (67) 30.3 ppb (29) N/A 38.0 ppb (36) N/A N/A 17.0 ppb (16) N/A N/A 16.1 μg/m3 (60) 67.0
 
Jan. 14, 2021, 5 p.m. 92.2 ppb (92) 50.1 ppb (48) N/A 42.0 ppb (40) N/A N/A 10.0 ppb (10) N/A N/A 18.5 μg/m3 (65) 92.0
 
Jan. 14, 2021, 4 p.m. 142.8 ppb (109) 99.2 ppb (100) N/A 44.0 ppb (42) N/A N/A 3.0 ppb (3) N/A N/A 22.1 μg/m3 (73) 109.0
 
Jan. 14, 2021, 3 p.m. 107.8 ppb (103) 73.4 ppb (72) N/A 34.0 ppb (33) N/A N/A 0.0 ppb (0) N/A N/A 18.7 μg/m3 (65) 103.0
 
Jan. 14, 2021, 2 p.m. 79.3 ppb (78) 45.9 ppb (44) N/A 33.0 ppb (32) N/A N/A 0.0 ppb (0) N/A N/A 14.7 μg/m3 (57) 78.0
 
Jan. 14, 2021, 1 p.m. 72.2 ppb (71) 39.8 ppb (38) N/A 32.0 ppb (31) N/A N/A 0.0 ppb (0) N/A N/A 12.3 μg/m3 (52) 71.0
 
Jan. 14, 2021, noon 50.7 ppb (48) 20.9 ppb (20) N/A 30.0 ppb (29) N/A N/A 0.0 ppb (0) N/A N/A 12.1 μg/m3 (51) 51.0
 
Jan. 14, 2021, 11 a.m. 53.1 ppb (51) 20.9 ppb (20) N/A 32.0 ppb (31) N/A N/A 0.0 ppb (0) N/A N/A 14.0 μg/m3 (55) 55.0
 
Jan. 14, 2021, 10 a.m. 55.0 ppb (53) 21.7 ppb (21) N/A 33.0 ppb (32) N/A N/A 0.0 ppb (0) N/A N/A 22.3 μg/m3 (73) 73.0
 
Jan. 14, 2021, 9 a.m. 77.5 ppb (77) 42.8 ppb (41) N/A 35.0 ppb (34) N/A N/A 0.0 ppb (0) N/A N/A 15.8 μg/m3 (59) 77.0
 
Jan. 14, 2021, 8 a.m. 84.8 ppb (84) 49.8 ppb (47) N/A 35.0 ppb (34) N/A N/A 1.0 ppb (1) N/A N/A 23.6 μg/m3 (76) 84.0
 
Jan. 14, 2021, 7 a.m. 101.8 ppb (102) 63.4 ppb (62) N/A 38.0 ppb (36) N/A N/A 1.0 ppb (1) N/A N/A 25.6 μg/m3 (80) 102.0
 
Jan. 14, 2021, 6 a.m. 123.7 ppb (106) 84.6 ppb (84) N/A 39.0 ppb (37) N/A N/A 2.0 ppb (2) N/A N/A 27.3 μg/m3 (83) 106.0
 
Jan. 14, 2021, 5 a.m. 121.4 ppb (105) 80.8 ppb (80) N/A 41.0 ppb (39) N/A N/A 1.0 ppb (1) N/A N/A 21.0 μg/m3 (70) 105.0
 
Jan. 14, 2021, 4 a.m. 119.9 ppb (105) 78.7 ppb (78) N/A 41.0 ppb (39) N/A N/A 2.0 ppb (2) N/A N/A 25.4 μg/m3 (79) 105.0
 
Jan. 14, 2021, 3 a.m. 106.4 ppb (103) 64.1 ppb (62) N/A 42.0 ppb (40) N/A N/A 1.0 ppb (1) N/A N/A 22.3 μg/m3 (73) 103.0
 
Jan. 14, 2021, 2 a.m. 84.5 ppb (84) 41.9 ppb (40) N/A 43.0 ppb (41) N/A N/A 2.0 ppb (2) N/A N/A 20.6 μg/m3 (69) 84.0
 
Jan. 14, 2021, 1 a.m. 50.3 ppb (48) 11.0 ppb (11) N/A 39.0 ppb (37) N/A N/A 6.0 ppb (6) N/A N/A 7.1 μg/m3 (30) 48.0
 
Jan. 14, 2021, midnight 29.2 ppb (28) 2.2 ppb (3) N/A 27.0 ppb (26) N/A N/A 23.0 ppb (22) N/A N/A 10.8 μg/m3 (46) 46.0
 
Jan. 13, 2021, 11 p.m. 28.9 ppb (28) 4.0 ppb (4) N/A 25.0 ppb (24) N/A N/A 30.0 ppb (28) N/A N/A 10.5 μg/m3 (44) 44.0
 
Jan. 13, 2021, 10 p.m. 23.1 ppb (22) 4.1 ppb (4) N/A 19.0 ppb (18) N/A N/A 35.0 ppb (33) N/A N/A 7.8 μg/m3 (33) 33.0
 
Jan. 13, 2021, 9 p.m. 20.2 ppb (20) 4.7 ppb (5) N/A 16.0 ppb (16) N/A N/A 37.0 ppb (35) N/A N/A 7.8 μg/m3 (33) 35.0
 
Jan. 13, 2021, 8 p.m. 32.8 ppb (31) 10.6 ppb (10) N/A 22.0 ppb (21) N/A N/A 29.0 ppb (27) N/A N/A 11.5 μg/m3 (48) 48.0
 
Jan. 13, 2021, 7 p.m. 46.4 ppb (44) 15.4 ppb (15) N/A 31.0 ppb (30) N/A N/A 18.0 ppb (17) N/A N/A 14.9 μg/m3 (57) 57.0
 
Jan. 13, 2021, 6 p.m. 61.0 ppb (59) 24.6 ppb (24) N/A 36.0 ppb (34) N/A N/A 12.0 ppb (12) N/A N/A 16.1 μg/m3 (60) 60.0
 
Jan. 13, 2021, 5 p.m. 102.1 ppb (102) 60.9 ppb (59) N/A 41.0 ppb (39) N/A N/A 8.0 ppb (8) N/A N/A 16.0 μg/m3 (60) 102.0
 
Jan. 13, 2021, 4 p.m. 156.6 ppb (112) 115.2 ppb (104) N/A 41.0 ppb (39) N/A N/A 3.0 ppb (3) N/A N/A 24.5 μg/m3 (78) 112.0
 
Jan. 13, 2021, 3 p.m. 120.1 ppb (105) 87.0 ppb (87) N/A 33.0 ppb (32) N/A N/A 1.0 ppb (1) N/A N/A 19.7 μg/m3 (67) 105.0
 
Jan. 13, 2021, 2 p.m. 95.1 ppb (95) 65.3 ppb (64) N/A 30.0 ppb (29) N/A N/A 0.0 ppb (0) N/A N/A 13.3 μg/m3 (54) 95.0
 
Jan. 13, 2021, 1 p.m. 75.1 ppb (74) 45.2 ppb (43) N/A 30.0 ppb (29) N/A N/A 0.0 ppb (0) N/A N/A 13.7 μg/m3 (55) 74.0
 
Jan. 13, 2021, noon 65.2 ppb (63) 36.1 ppb (35) N/A 29.0 ppb (28) N/A N/A 0.0 ppb (0) N/A N/A 12.8 μg/m3 (53) 63.0
 
Jan. 13, 2021, 11 a.m. 64.7 ppb (63) 34.6 ppb (33) N/A 30.0 ppb (29) N/A N/A 0.0 ppb (0) N/A N/A 14.2 μg/m3 (56) 63.0
 
Jan. 13, 2021, 10 a.m. 59.7 ppb (58) 29.6 ppb (28) N/A 30.0 ppb (29) N/A N/A 0.0 ppb (0) N/A N/A 15.7 μg/m3 (59) 59.0
 
Jan. 13, 2021, 9 a.m. 53.1 ppb (51) 22.6 ppb (22) N/A 30.0 ppb (29) N/A N/A 0.0 ppb (0) N/A N/A 15.7 μg/m3 (59) 59.0