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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| April 10, 2021, 10 a.m. | 18.0 ppb (17) | 0.9 ppb (1) | N/A | 17.0 ppb (17) | N/A | N/A | 13.0 ppb (13) | N/A | N/A | 16.5 μg/m3 (61) | 61.0 | |
| April 10, 2021, 9 a.m. | 16.6 ppb (16) | 0.6 ppb (1) | N/A | 16.0 ppb (16) | N/A | N/A | 19.0 ppb (18) | N/A | N/A | 21.2 μg/m3 (71) | 71.0 | |
| April 10, 2021, 8 a.m. | 17.7 ppb (17) | 0.6 ppb (1) | N/A | 17.0 ppb (17) | N/A | N/A | 21.0 ppb (20) | N/A | N/A | 21.0 μg/m3 (70) | 70.0 | |
| April 10, 2021, 7 a.m. | 23.7 ppb (23) | 0.6 ppb (1) | N/A | 23.0 ppb (22) | N/A | N/A | 19.0 ppb (18) | N/A | N/A | 20.7 μg/m3 (70) | 70.0 | |
| April 10, 2021, 6 a.m. | 21.7 ppb (21) | 0.7 ppb (1) | N/A | 21.0 ppb (20) | N/A | N/A | 22.0 ppb (21) | N/A | N/A | 25.6 μg/m3 (80) | 80.0 | |
| April 10, 2021, 5 a.m. | 15.4 ppb (15) | 0.6 ppb (1) | N/A | 15.0 ppb (15) | N/A | N/A | 30.0 ppb (28) | N/A | N/A | 23.2 μg/m3 (75) | 75.0 | |
| April 10, 2021, 4 a.m. | 13.5 ppb (13) | 0.4 ppb (1) | N/A | 13.0 ppb (13) | N/A | N/A | 35.0 ppb (33) | N/A | N/A | 27.5 μg/m3 (84) | 84.0 | |
| April 10, 2021, 3 a.m. | 12.6 ppb (12) | 0.4 ppb (1) | N/A | 12.0 ppb (12) | N/A | N/A | 40.0 ppb (38) | N/A | N/A | 19.5 μg/m3 (67) | 67.0 | |
| April 10, 2021, 2 a.m. | 10.7 ppb (11) | 0.3 ppb (1) | N/A | 10.0 ppb (10) | N/A | N/A | 47.0 ppb (44) | N/A | N/A | 19.7 μg/m3 (67) | 67.0 | |
| April 10, 2021, 1 a.m. | 8.2 ppb (8) | 0.5 ppb (1) | N/A | 8.0 ppb (8) | N/A | N/A | 56.0 ppb (55) | N/A | N/A | 19.2 μg/m3 (66) | 66.0 | |
| April 10, 2021, midnight | 7.4 ppb (7) | 0.7 ppb (1) | N/A | 7.0 ppb (7) | N/A | N/A | 62.0 ppb (74) | N/A | N/A | 24.4 μg/m3 (77) | 77.0 | |
| April 9, 2021, 11 p.m. | 7.1 ppb (7) | 0.7 ppb (1) | N/A | 6.0 ppb (6) | N/A | N/A | 68.0 ppb (94) | N/A | N/A | 20.7 μg/m3 (70) | 94.0 | |
| April 9, 2021, 10 p.m. | 8.2 ppb (8) | 1.0 ppb (1) | N/A | 7.0 ppb (7) | N/A | N/A | 69.0 ppb (97) | N/A | N/A | 21.7 μg/m3 (72) | 97.0 | |
| April 9, 2021, 9 p.m. | 10.9 ppb (11) | 1.5 ppb (2) | N/A | 9.0 ppb (9) | N/A | N/A | 65.0 ppb (84) | N/A | N/A | 23.7 μg/m3 (76) | 84.0 | |
| April 9, 2021, 8 p.m. | 12.3 ppb (12) | 2.2 ppb (3) | N/A | 10.0 ppb (10) | N/A | N/A | 56.0 ppb (55) | N/A | N/A | N/A | 55.0 | |
| April 9, 2021, 7 p.m. | 12.8 ppb (13) | 2.4 ppb (3) | N/A | 10.0 ppb (10) | N/A | N/A | 55.0 ppb (51) | N/A | N/A | N/A | 51.0 | |
| April 9, 2021, 6 p.m. | 14.7 ppb (14) | 3.4 ppb (4) | N/A | 11.0 ppb (11) | N/A | N/A | 47.0 ppb (44) | N/A | N/A | N/A | 44.0 | |
| April 9, 2021, 5 p.m. | 23.1 ppb (22) | 7.1 ppb (7) | N/A | 16.0 ppb (16) | N/A | N/A | 34.0 ppb (32) | N/A | N/A | 18.0 μg/m3 (64) | 64.0 | |
| April 9, 2021, 4 p.m. | 27.8 ppb (27) | 10.1 ppb (10) | N/A | 18.0 ppb (17) | N/A | N/A | 23.0 ppb (22) | N/A | N/A | 21.4 μg/m3 (71) | 71.0 | |
| April 9, 2021, 3 p.m. | 30.2 ppb (29) | 12.2 ppb (12) | N/A | 18.0 ppb (17) | N/A | N/A | 17.0 ppb (16) | N/A | N/A | 16.7 μg/m3 (61) | 61.0 | |
| April 9, 2021, 2 p.m. | 52.2 ppb (50) | 29.1 ppb (28) | N/A | 23.0 ppb (22) | N/A | N/A | 6.0 ppb (6) | N/A | N/A | 14.5 μg/m3 (57) | 57.0 | |
| April 9, 2021, 1 p.m. | 41.7 ppb (40) | 17.4 ppb (17) | N/A | 24.0 ppb (23) | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 10.8 μg/m3 (46) | 46.0 | |
| April 9, 2021, noon | 24.3 ppb (23) | 3.8 ppb (4) | N/A | 21.0 ppb (20) | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 9.1 μg/m3 (38) | 38.0 | |
| April 9, 2021, 11 a.m. | 20.3 ppb (20) | 1.4 ppb (2) | N/A | 19.0 ppb (18) | N/A | N/A | 7.0 ppb (7) | N/A | N/A | 10.3 μg/m3 (43) | 43.0 | |
| April 9, 2021, 10 a.m. | 19.3 ppb (19) | 1.3 ppb (2) | N/A | 18.0 ppb (17) | N/A | N/A | 9.0 ppb (9) | N/A | N/A | 13.5 μg/m3 (54) | 54.0 | |
| April 9, 2021, 9 a.m. | 17.9 ppb (17) | 0.8 ppb (1) | N/A | 17.0 ppb (17) | N/A | N/A | 14.0 ppb (13) | N/A | N/A | 16.3 μg/m3 (60) | 60.0 | |
| April 9, 2021, 8 a.m. | 15.3 ppb (15) | 0.6 ppb (1) | N/A | 15.0 ppb (15) | N/A | N/A | 21.0 ppb (20) | N/A | N/A | 13.3 μg/m3 (54) | 54.0 | |
| April 9, 2021, 7 a.m. | 9.5 ppb (9) | 0.3 ppb (1) | N/A | 9.0 ppb (9) | N/A | N/A | 29.0 ppb (27) | N/A | N/A | 12.3 μg/m3 (52) | 52.0 | |
| April 9, 2021, 6 a.m. | 9.3 ppb (9) | 0.4 ppb (1) | N/A | 9.0 ppb (9) | N/A | N/A | 30.0 ppb (28) | N/A | N/A | 13.1 μg/m3 (54) | 54.0 | |
| April 9, 2021, 5 a.m. | 9.1 ppb (9) | 0.5 ppb (1) | N/A | 9.0 ppb (9) | N/A | N/A | 31.0 ppb (29) | N/A | N/A | 12.9 μg/m3 (53) | 53.0 | |
| April 9, 2021, 4 a.m. | 8.3 ppb (8) | 0.4 ppb (1) | N/A | 8.0 ppb (8) | N/A | N/A | 33.0 ppb (31) | N/A | N/A | 15.6 μg/m3 (59) | 59.0 | |
| April 9, 2021, 3 a.m. | 8.2 ppb (8) | 0.3 ppb (1) | N/A | 8.0 ppb (8) | N/A | N/A | 35.0 ppb (33) | N/A | N/A | 15.3 μg/m3 (58) | 58.0 | |
| April 9, 2021, 2 a.m. | 8.6 ppb (9) | 0.4 ppb (1) | N/A | 8.0 ppb (8) | N/A | N/A | 37.0 ppb (35) | N/A | N/A | 13.1 μg/m3 (54) | 54.0 | |
| April 9, 2021, 1 a.m. | 7.0 ppb (7) | 0.5 ppb (1) | N/A | 7.0 ppb (7) | N/A | N/A | 45.0 ppb (42) | N/A | N/A | 14.6 μg/m3 (57) | 57.0 | |
| April 9, 2021, midnight | 5.5 ppb (6) | 0.7 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | 50.0 ppb (47) | N/A | N/A | 14.6 μg/m3 (57) | 57.0 | |
| April 8, 2021, 11 p.m. | 4.8 ppb (5) | 0.7 ppb (1) | N/A | 4.0 ppb (4) | N/A | N/A | 53.0 ppb (50) | N/A | N/A | 12.6 μg/m3 (53) | 53.0 | |
| April 8, 2021, 10 p.m. | 5.6 ppb (6) | 0.8 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | 60.0 ppb (68) | N/A | N/A | 14.1 μg/m3 (56) | 68.0 | |
| April 8, 2021, 9 p.m. | 7.2 ppb (7) | 0.9 ppb (1) | N/A | 6.0 ppb (6) | N/A | N/A | 65.0 ppb (84) | N/A | N/A | 15.8 μg/m3 (59) | 84.0 | |
| April 8, 2021, 8 p.m. | 14.1 ppb (14) | 2.7 ppb (3) | N/A | 11.0 ppb (11) | N/A | N/A | 55.0 ppb (51) | N/A | N/A | 16.3 μg/m3 (60) | 60.0 | |
| April 8, 2021, 7 p.m. | 22.5 ppb (22) | 5.1 ppb (5) | N/A | 17.0 ppb (17) | N/A | N/A | 46.0 ppb (43) | N/A | N/A | 20.7 μg/m3 (70) | 70.0 | |
| April 8, 2021, 6 p.m. | 27.8 ppb (27) | 7.3 ppb (7) | N/A | 20.0 ppb (19) | N/A | N/A | 39.0 ppb (37) | N/A | N/A | 19.7 μg/m3 (67) | 67.0 | |
| April 8, 2021, 5 p.m. | 20.2 ppb (20) | 5.4 ppb (6) | N/A | 15.0 ppb (15) | N/A | N/A | 37.0 ppb (35) | N/A | N/A | 17.5 μg/m3 (63) | 63.0 | |
| April 8, 2021, 4 p.m. | 24.6 ppb (24) | 7.7 ppb (8) | N/A | 17.0 ppb (17) | N/A | N/A | 27.0 ppb (25) | N/A | N/A | 19.5 μg/m3 (67) | 67.0 | |
| April 8, 2021, 3 p.m. | 23.7 ppb (23) | 7.4 ppb (7) | N/A | 16.0 ppb (16) | N/A | N/A | 22.0 ppb (21) | N/A | N/A | 18.0 μg/m3 (64) | 64.0 | |
| April 8, 2021, 2 p.m. | 32.9 ppb (32) | 10.7 ppb (11) | N/A | 22.0 ppb (21) | N/A | N/A | 10.0 ppb (10) | N/A | N/A | 20.4 μg/m3 (69) | 69.0 | |
| April 8, 2021, 1 p.m. | 29.0 ppb (28) | 5.9 ppb (6) | N/A | 23.0 ppb (22) | N/A | N/A | 4.0 ppb (4) | N/A | N/A | 12.1 μg/m3 (51) | 51.0 | |
| April 8, 2021, noon | 23.2 ppb (22) | 2.1 ppb (2) | N/A | 21.0 ppb (20) | N/A | N/A | 7.0 ppb (7) | N/A | N/A | 12.6 μg/m3 (53) | 53.0 | |
| April 8, 2021, 11 a.m. | 20.7 ppb (20) | 1.3 ppb (2) | N/A | 19.0 ppb (18) | N/A | N/A | 8.0 ppb (8) | N/A | N/A | 12.8 μg/m3 (53) | 53.0 | |
| April 8, 2021, 10 a.m. | 21.4 ppb (21) | 1.7 ppb (2) | N/A | 20.0 ppb (19) | N/A | N/A | 7.0 ppb (7) | N/A | N/A | 12.8 μg/m3 (53) | 53.0 | |
| April 8, 2021, 9 a.m. | 16.9 ppb (16) | 0.8 ppb (1) | N/A | 16.0 ppb (16) | N/A | N/A | 12.0 ppb (12) | N/A | N/A | 20.0 μg/m3 (68) | 68.0 | |
| April 8, 2021, 8 a.m. | 16.5 ppb (16) | 0.9 ppb (1) | N/A | 16.0 ppb (16) | N/A | N/A | 16.0 ppb (15) | N/A | N/A | 15.8 μg/m3 (59) | 59.0 | |
| April 8, 2021, 7 a.m. | 13.8 ppb (14) | 0.7 ppb (1) | N/A | 13.0 ppb (13) | N/A | N/A | 19.0 ppb (18) | N/A | N/A | 17.2 μg/m3 (62) | 62.0 | |
| April 8, 2021, 6 a.m. | 12.7 ppb (12) | 0.5 ppb (1) | N/A | 12.0 ppb (12) | N/A | N/A | 25.0 ppb (24) | N/A | N/A | 15.1 μg/m3 (58) | 58.0 | |
| April 8, 2021, 5 a.m. | 11.0 ppb (11) | 0.3 ppb (1) | N/A | 11.0 ppb (11) | N/A | N/A | 31.0 ppb (29) | N/A | N/A | 13.1 μg/m3 (54) | 54.0 | |
| April 8, 2021, 4 a.m. | 9.5 ppb (9) | 0.4 ppb (1) | N/A | 9.0 ppb (9) | N/A | N/A | 34.0 ppb (32) | N/A | N/A | 13.1 μg/m3 (54) | 54.0 | |
| April 8, 2021, 3 a.m. | 8.8 ppb (9) | 0.2 ppb (1) | N/A | 9.0 ppb (9) | N/A | N/A | 39.0 ppb (37) | N/A | N/A | 12.1 μg/m3 (51) | 51.0 | |
| April 8, 2021, 2 a.m. | 8.5 ppb (9) | 0.3 ppb (1) | N/A | 8.0 ppb (8) | N/A | N/A | 44.0 ppb (41) | N/A | N/A | 12.4 μg/m3 (52) | 52.0 | |
| April 8, 2021, 1 a.m. | 7.1 ppb (7) | 0.5 ppb (1) | N/A | 7.0 ppb (7) | N/A | N/A | 48.0 ppb (45) | N/A | N/A | 12.9 μg/m3 (53) | 53.0 | |
| April 8, 2021, midnight | 6.3 ppb (6) | 0.8 ppb (1) | N/A | 6.0 ppb (6) | N/A | N/A | 53.0 ppb (50) | N/A | N/A | 12.6 μg/m3 (53) | 53.0 | |
| April 7, 2021, 11 p.m. | 5.8 ppb (6) | 0.7 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | 58.0 ppb (61) | N/A | N/A | 14.8 μg/m3 (57) | 61.0 | |
| April 7, 2021, 10 p.m. | 5.9 ppb (6) | 0.6 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | 66.0 ppb (87) | N/A | N/A | 15.3 μg/m3 (58) | 87.0 | |
| April 7, 2021, 9 p.m. | 6.4 ppb (7) | 0.7 ppb (1) | N/A | 6.0 ppb (6) | N/A | N/A | 71.0 ppb (101) | N/A | N/A | 13.1 μg/m3 (54) | 101.0 | |
| April 7, 2021, 8 p.m. | 8.2 ppb (8) | 0.8 ppb (1) | N/A | 7.0 ppb (7) | N/A | N/A | 71.0 ppb (101) | N/A | N/A | 19.6 μg/m3 (67) | 101.0 | |
| April 7, 2021, 7 p.m. | 10.3 ppb (10) | 1.3 ppb (2) | N/A | 9.0 ppb (9) | N/A | N/A | 67.0 ppb (91) | N/A | N/A | 13.8 μg/m3 (55) | 91.0 | |
| April 7, 2021, 6 p.m. | 16.1 ppb (16) | 3.1 ppb (3) | N/A | 13.0 ppb (13) | N/A | N/A | 53.0 ppb (50) | N/A | N/A | 21.5 μg/m3 (71) | 71.0 | |
| April 7, 2021, 5 p.m. | 16.3 ppb (16) | 3.5 ppb (4) | N/A | 13.0 ppb (13) | N/A | N/A | 44.0 ppb (41) | N/A | N/A | 21.7 μg/m3 (72) | 72.0 | |
| April 7, 2021, 4 p.m. | 26.6 ppb (26) | 8.2 ppb (8) | N/A | 18.0 ppb (17) | N/A | N/A | 31.0 ppb (29) | N/A | N/A | 18.2 μg/m3 (64) | 64.0 | |
| April 7, 2021, 3 p.m. | 48.1 ppb (46) | 23.4 ppb (23) | N/A | 25.0 ppb (24) | N/A | N/A | 13.0 ppb (13) | N/A | N/A | 22.8 μg/m3 (74) | 74.0 | |
| April 7, 2021, 2 p.m. | 46.8 ppb (45) | 26.3 ppb (25) | N/A | 20.0 ppb (19) | N/A | N/A | 5.0 ppb (5) | N/A | N/A | 12.1 μg/m3 (51) | 51.0 | |
| April 7, 2021, 1 p.m. | 32.7 ppb (31) | 13.3 ppb (13) | N/A | 19.0 ppb (18) | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 14.0 μg/m3 (55) | 55.0 | |
| April 7, 2021, noon | 26.6 ppb (26) | 7.2 ppb (7) | N/A | 19.0 ppb (18) | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 14.4 μg/m3 (56) | 56.0 | |
| April 7, 2021, 11 a.m. | 20.7 ppb (20) | 2.1 ppb (2) | N/A | 19.0 ppb (18) | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 11.6 μg/m3 (49) | 49.0 | |
| April 7, 2021, 10 a.m. | 19.9 ppb (19) | 1.9 ppb (2) | N/A | 18.0 ppb (17) | N/A | N/A | 7.0 ppb (7) | N/A | N/A | 12.6 μg/m3 (53) | 53.0 | |
| April 7, 2021, 9 a.m. | 16.4 ppb (16) | 0.7 ppb (1) | N/A | 16.0 ppb (16) | N/A | N/A | 13.0 ppb (13) | N/A | N/A | 13.8 μg/m3 (55) | 55.0 | |
| April 7, 2021, 8 a.m. | 15.0 ppb (15) | 0.7 ppb (1) | N/A | 14.0 ppb (14) | N/A | N/A | 15.0 ppb (14) | N/A | N/A | 13.3 μg/m3 (54) | 54.0 | |
| April 7, 2021, 7 a.m. | 11.6 ppb (11) | 0.5 ppb (1) | N/A | 11.0 ppb (11) | N/A | N/A | 21.0 ppb (20) | N/A | N/A | 12.8 μg/m3 (53) | 53.0 | |
| April 7, 2021, 6 a.m. | 9.2 ppb (9) | 0.5 ppb (1) | N/A | 9.0 ppb (9) | N/A | N/A | 26.0 ppb (25) | N/A | N/A | 13.1 μg/m3 (54) | 54.0 | |
| April 7, 2021, 5 a.m. | 6.2 ppb (6) | 0.3 ppb (1) | N/A | 6.0 ppb (6) | N/A | N/A | 33.0 ppb (31) | N/A | N/A | 14.3 μg/m3 (56) | 56.0 | |
| April 7, 2021, 4 a.m. | 5.3 ppb (5) | 0.3 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | 38.0 ppb (36) | N/A | N/A | 13.8 μg/m3 (55) | 55.0 | |
| April 7, 2021, 3 a.m. | 7.8 ppb (8) | 0.2 ppb (1) | N/A | 8.0 ppb (8) | N/A | N/A | 41.0 ppb (38) | N/A | N/A | 14.1 μg/m3 (56) | 56.0 | |
| April 7, 2021, 2 a.m. | 7.1 ppb (7) | 0.4 ppb (1) | N/A | 7.0 ppb (7) | N/A | N/A | 47.0 ppb (44) | N/A | N/A | 15.6 μg/m3 (59) | 59.0 | |
| April 7, 2021, 1 a.m. | 5.9 ppb (6) | 0.4 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | 51.0 ppb (48) | N/A | N/A | 16.6 μg/m3 (61) | 61.0 | |
| April 7, 2021, midnight | 6.1 ppb (6) | 0.7 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | 52.0 ppb (49) | N/A | N/A | 15.8 μg/m3 (59) | 59.0 | |
| April 6, 2021, 11 p.m. | 6.1 ppb (6) | 0.8 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | 58.0 ppb (61) | N/A | N/A | 13.6 μg/m3 (55) | 61.0 | |
| April 6, 2021, 10 p.m. | 6.2 ppb (6) | 0.8 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | 59.0 ppb (65) | N/A | N/A | 14.8 μg/m3 (57) | 65.0 | |
| April 6, 2021, 9 p.m. | 7.3 ppb (7) | 1.2 ppb (2) | N/A | 6.0 ppb (6) | N/A | N/A | 57.0 ppb (58) | N/A | N/A | 17.1 μg/m3 (62) | 62.0 | |
| April 6, 2021, 8 p.m. | 9.8 ppb (10) | 2.0 ppb (2) | N/A | 8.0 ppb (8) | N/A | N/A | 50.0 ppb (47) | N/A | N/A | 20.5 μg/m3 (69) | 69.0 | |
| April 6, 2021, 7 p.m. | 14.8 ppb (14) | 3.9 ppb (4) | N/A | 11.0 ppb (11) | N/A | N/A | 41.0 ppb (38) | N/A | N/A | 23.9 μg/m3 (76) | 76.0 | |
| April 6, 2021, 6 p.m. | 17.0 ppb (17) | 4.9 ppb (5) | N/A | 12.0 ppb (12) | N/A | N/A | 36.0 ppb (34) | N/A | N/A | 19.5 μg/m3 (67) | 67.0 | |
| April 6, 2021, 5 p.m. | 13.9 ppb (14) | 4.2 ppb (4) | N/A | 10.0 ppb (10) | N/A | N/A | 33.0 ppb (31) | N/A | N/A | 17.5 μg/m3 (63) | 63.0 | |
| April 6, 2021, 4 p.m. | 15.2 ppb (15) | 4.8 ppb (5) | N/A | 10.0 ppb (10) | N/A | N/A | 28.0 ppb (26) | N/A | N/A | 14.5 μg/m3 (57) | 57.0 | |
| April 6, 2021, 3 p.m. | 19.8 ppb (19) | 5.9 ppb (6) | N/A | 14.0 ppb (14) | N/A | N/A | 21.0 ppb (20) | N/A | N/A | 12.3 μg/m3 (52) | 52.0 | |
| April 6, 2021, 2 p.m. | 36.1 ppb (35) | 15.2 ppb (15) | N/A | 21.0 ppb (20) | N/A | N/A | 8.0 ppb (8) | N/A | N/A | 12.8 μg/m3 (53) | 53.0 | |
| April 6, 2021, 1 p.m. | 24.1 ppb (23) | 3.4 ppb (4) | N/A | 21.0 ppb (20) | N/A | N/A | 4.0 ppb (4) | N/A | N/A | 11.1 μg/m3 (47) | 47.0 | |
| April 6, 2021, noon | 17.1 ppb (17) | 1.3 ppb (2) | N/A | 16.0 ppb (16) | N/A | N/A | 9.0 ppb (9) | N/A | N/A | 12.3 μg/m3 (52) | 52.0 | |
| April 6, 2021, 11 a.m. | 15.5 ppb (15) | 0.6 ppb (1) | N/A | 15.0 ppb (15) | N/A | N/A | 16.0 ppb (15) | N/A | N/A | 14.3 μg/m3 (56) | 56.0 | |
| April 6, 2021, 10 a.m. | 16.1 ppb (16) | 0.7 ppb (1) | N/A | 15.0 ppb (15) | N/A | N/A | 17.0 ppb (16) | N/A | N/A | 12.1 μg/m3 (51) | 51.0 | |
| April 6, 2021, 9 a.m. | 10.8 ppb (11) | 0.5 ppb (1) | N/A | 10.0 ppb (10) | N/A | N/A | 21.0 ppb (20) | N/A | N/A | 10.3 μg/m3 (43) | 43.0 | |
| April 6, 2021, 8 a.m. | 10.4 ppb (10) | 0.5 ppb (1) | N/A | 10.0 ppb (10) | N/A | N/A | 23.0 ppb (22) | N/A | N/A | 14.3 μg/m3 (56) | 56.0 | |
| April 6, 2021, 7 a.m. | 9.0 ppb (9) | 0.3 ppb (1) | N/A | 9.0 ppb (9) | N/A | N/A | 27.0 ppb (25) | N/A | N/A | 14.8 μg/m3 (57) | 57.0 | |
| April 6, 2021, 6 a.m. | 8.7 ppb (9) | 0.4 ppb (1) | N/A | 8.0 ppb (8) | N/A | N/A | 29.0 ppb (27) | N/A | N/A | 10.4 μg/m3 (44) | 44.0 | |
| April 6, 2021, 5 a.m. | 7.1 ppb (7) | 0.3 ppb (1) | N/A | 7.0 ppb (7) | N/A | N/A | 31.0 ppb (29) | N/A | N/A | 10.7 μg/m3 (45) | 45.0 | |
| April 6, 2021, 4 a.m. | 8.2 ppb (8) | 0.5 ppb (1) | N/A | 8.0 ppb (8) | N/A | N/A | 32.0 ppb (30) | N/A | N/A | 14.1 μg/m3 (56) | 56.0 | |
| April 6, 2021, 3 a.m. | 7.2 ppb (7) | 0.3 ppb (1) | N/A | 7.0 ppb (7) | N/A | N/A | 34.0 ppb (32) | N/A | N/A | 12.6 μg/m3 (53) | 53.0 | |
| April 6, 2021, 2 a.m. | 7.2 ppb (7) | 0.3 ppb (1) | N/A | 7.0 ppb (7) | N/A | N/A | 35.0 ppb (33) | N/A | N/A | 8.7 μg/m3 (37) | 37.0 | |
| April 6, 2021, 1 a.m. | 5.9 ppb (6) | 0.5 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | 39.0 ppb (37) | N/A | N/A | 7.2 μg/m3 (31) | 37.0 | |
| April 6, 2021, midnight | 4.2 ppb (4) | 0.7 ppb (1) | N/A | 4.0 ppb (4) | N/A | N/A | 43.0 ppb (40) | N/A | N/A | 8.3 μg/m3 (35) | 40.0 | |
| April 5, 2021, 11 p.m. | 5.3 ppb (5) | 0.8 ppb (1) | N/A | 4.0 ppb (4) | N/A | N/A | 52.0 ppb (49) | N/A | N/A | 13.6 μg/m3 (55) | 55.0 | |
| April 5, 2021, 10 p.m. | 7.6 ppb (8) | 1.3 ppb (2) | N/A | 6.0 ppb (6) | N/A | N/A | 54.0 ppb (50) | N/A | N/A | 15.8 μg/m3 (59) | 59.0 | |
| April 5, 2021, 9 p.m. | 9.9 ppb (10) | 1.8 ppb (2) | N/A | 8.0 ppb (8) | N/A | N/A | 52.0 ppb (49) | N/A | N/A | 14.8 μg/m3 (57) | 57.0 | |
| April 5, 2021, 8 p.m. | 17.0 ppb (17) | 4.1 ppb (4) | N/A | 13.0 ppb (13) | N/A | N/A | 45.0 ppb (42) | N/A | N/A | 20.5 μg/m3 (69) | 69.0 | |
| April 5, 2021, 7 p.m. | 16.7 ppb (16) | 4.2 ppb (4) | N/A | 12.0 ppb (12) | N/A | N/A | 42.0 ppb (39) | N/A | N/A | 19.0 μg/m3 (66) | 66.0 | |
| April 5, 2021, 6 p.m. | 17.0 ppb (17) | 4.7 ppb (5) | N/A | 12.0 ppb (12) | N/A | N/A | 38.0 ppb (36) | N/A | N/A | 16.3 μg/m3 (60) | 60.0 | |
| April 5, 2021, 5 p.m. | 18.5 ppb (18) | 5.8 ppb (6) | N/A | 13.0 ppb (13) | N/A | N/A | 32.0 ppb (30) | N/A | N/A | 15.3 μg/m3 (58) | 58.0 | |
| April 5, 2021, 4 p.m. | 20.9 ppb (20) | 7.0 ppb (7) | N/A | 14.0 ppb (14) | N/A | N/A | 26.0 ppb (25) | N/A | N/A | 15.8 μg/m3 (59) | 59.0 | |
| April 5, 2021, 3 p.m. | 30.5 ppb (29) | 12.1 ppb (12) | N/A | 18.0 ppb (17) | N/A | N/A | 17.0 ppb (16) | N/A | N/A | 26.4 μg/m3 (82) | 82.0 | |
| April 5, 2021, 2 p.m. | 54.1 ppb (52) | 29.7 ppb (29) | N/A | 24.0 ppb (23) | N/A | N/A | 5.0 ppb (5) | N/A | N/A | 22.1 μg/m3 (73) | 73.0 | |
| April 5, 2021, 1 p.m. | 29.7 ppb (29) | 7.4 ppb (7) | N/A | 22.0 ppb (21) | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 14.7 μg/m3 (57) | 57.0 | |
| April 5, 2021, noon | 19.9 ppb (19) | 1.4 ppb (2) | N/A | 19.0 ppb (18) | N/A | N/A | 5.0 ppb (5) | N/A | N/A | 14.2 μg/m3 (56) | 56.0 | |
| April 5, 2021, 11 a.m. | 16.3 ppb (16) | 1.0 ppb (1) | N/A | 15.0 ppb (15) | N/A | N/A | 10.0 ppb (10) | N/A | N/A | 19.6 μg/m3 (67) | 67.0 | |
| April 5, 2021, 10 a.m. | 15.7 ppb (15) | 0.7 ppb (1) | N/A | 15.0 ppb (15) | N/A | N/A | 12.0 ppb (12) | N/A | N/A | 11.1 μg/m3 (47) | 47.0 | |
| April 5, 2021, 9 a.m. | 12.3 ppb (12) | 0.5 ppb (1) | N/A | 12.0 ppb (12) | N/A | N/A | 20.0 ppb (19) | N/A | N/A | 11.9 μg/m3 (50) | 50.0 | |
| April 5, 2021, 8 a.m. | 10.4 ppb (10) | 0.6 ppb (1) | N/A | 10.0 ppb (10) | N/A | N/A | 24.0 ppb (23) | N/A | N/A | 12.6 μg/m3 (53) | 53.0 | |
| April 5, 2021, 7 a.m. | 8.8 ppb (9) | 0.4 ppb (1) | N/A | 8.0 ppb (8) | N/A | N/A | 30.0 ppb (28) | N/A | N/A | 11.9 μg/m3 (50) | 50.0 | |
| April 5, 2021, 6 a.m. | 7.2 ppb (7) | 0.3 ppb (1) | N/A | 7.0 ppb (7) | N/A | N/A | 33.0 ppb (31) | N/A | N/A | 15.6 μg/m3 (59) | 59.0 | |
| April 5, 2021, 5 a.m. | 9.9 ppb (10) | 0.4 ppb (1) | N/A | 9.0 ppb (9) | N/A | N/A | 29.0 ppb (27) | N/A | N/A | 18.5 μg/m3 (65) | 65.0 | |
| April 5, 2021, 4 a.m. | 10.1 ppb (10) | 0.4 ppb (1) | N/A | 10.0 ppb (10) | N/A | N/A | 30.0 ppb (28) | N/A | N/A | 22.0 μg/m3 (72) | 72.0 | |
| April 5, 2021, 3 a.m. | 8.8 ppb (9) | 0.3 ppb (1) | N/A | 8.0 ppb (8) | N/A | N/A | 37.0 ppb (35) | N/A | N/A | 13.4 μg/m3 (54) | 54.0 | |
| April 5, 2021, 2 a.m. | 7.8 ppb (8) | 0.4 ppb (1) | N/A | 7.0 ppb (7) | N/A | N/A | 43.0 ppb (40) | N/A | N/A | 12.1 μg/m3 (51) | 51.0 | |
| April 5, 2021, 1 a.m. | 5.2 ppb (5) | 0.4 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | 53.0 ppb (50) | N/A | N/A | 12.2 μg/m3 (52) | 52.0 | |
| April 5, 2021, midnight | 5.7 ppb (6) | 0.6 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | 63.0 ppb (78) | N/A | N/A | 15.1 μg/m3 (58) | 78.0 | |
| April 4, 2021, 11 p.m. | 5.6 ppb (6) | 0.5 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | 71.0 ppb (101) | N/A | N/A | 16.6 μg/m3 (61) | 101.0 | |
| April 4, 2021, 10 p.m. | 5.6 ppb (6) | 0.5 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | 71.0 ppb (101) | N/A | N/A | 17.3 μg/m3 (62) | 101.0 | |
| April 4, 2021, 9 p.m. | 9.4 ppb (9) | 1.0 ppb (1) | N/A | 8.0 ppb (8) | N/A | N/A | 72.0 ppb (102) | N/A | N/A | 18.5 μg/m3 (65) | 102.0 | |
| April 4, 2021, 8 p.m. | 11.7 ppb (12) | 1.2 ppb (2) | N/A | 11.0 ppb (11) | N/A | N/A | 77.0 ppb (105) | N/A | N/A | 21.7 μg/m3 (72) | 105.0 | |
| April 4, 2021, 7 p.m. | 11.0 ppb (11) | 1.2 ppb (2) | N/A | 10.0 ppb (10) | N/A | N/A | 73.0 ppb (103) | N/A | N/A | 19.5 μg/m3 (67) | 103.0 | |
| April 4, 2021, 6 p.m. | 13.0 ppb (13) | 2.0 ppb (2) | N/A | 11.0 ppb (11) | N/A | N/A | 59.0 ppb (65) | N/A | N/A | 15.6 μg/m3 (59) | 65.0 | |
| April 4, 2021, 5 p.m. | 11.8 ppb (12) | 2.0 ppb (2) | N/A | 10.0 ppb (10) | N/A | N/A | 51.0 ppb (48) | N/A | N/A | 15.5 μg/m3 (59) | 59.0 | |
| April 4, 2021, 4 p.m. | 22.7 ppb (22) | 6.2 ppb (6) | N/A | 16.0 ppb (16) | N/A | N/A | 32.0 ppb (30) | N/A | N/A | 19.1 μg/m3 (66) | 66.0 | |
| April 4, 2021, 3 p.m. | 28.4 ppb (27) | 10.3 ppb (10) | N/A | 18.0 ppb (17) | N/A | N/A | 17.0 ppb (16) | N/A | N/A | 21.3 μg/m3 (71) | 71.0 | |
| April 4, 2021, 2 p.m. | 34.4 ppb (33) | 15.3 ppb (15) | N/A | 19.0 ppb (18) | N/A | N/A | 6.0 ppb (6) | N/A | N/A | 17.7 μg/m3 (63) | 63.0 | |
| April 4, 2021, 1 p.m. | 30.5 ppb (29) | 10.7 ppb (11) | N/A | 20.0 ppb (19) | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 17.9 μg/m3 (64) | 64.0 | |
| April 4, 2021, noon | 28.9 ppb (28) | 7.5 ppb (8) | N/A | 21.0 ppb (20) | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 20.9 μg/m3 (70) | 70.0 | |
| April 4, 2021, 11 a.m. | 21.7 ppb (21) | 2.1 ppb (2) | N/A | 20.0 ppb (19) | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 21.1 μg/m3 (70) | 70.0 | |
| April 4, 2021, 10 a.m. | 19.9 ppb (19) | 1.3 ppb (2) | N/A | 19.0 ppb (18) | N/A | N/A | 6.0 ppb (6) | N/A | N/A | 20.2 μg/m3 (69) | 69.0 | |
| April 4, 2021, 9 a.m. | 20.3 ppb (20) | 1.0 ppb (1) | N/A | 19.0 ppb (18) | N/A | N/A | 9.0 ppb (9) | N/A | N/A | 19.2 μg/m3 (66) | 66.0 | |
| April 4, 2021, 8 a.m. | 20.4 ppb (20) | 1.3 ppb (2) | N/A | 19.0 ppb (18) | N/A | N/A | 13.0 ppb (13) | N/A | N/A | 20.4 μg/m3 (69) | 69.0 | |
| April 4, 2021, 7 a.m. | 19.5 ppb (19) | 0.7 ppb (1) | N/A | 19.0 ppb (18) | N/A | N/A | 19.0 ppb (18) | N/A | N/A | 20.7 μg/m3 (70) | 70.0 | |
| April 4, 2021, 6 a.m. | 17.4 ppb (17) | 0.6 ppb (1) | N/A | 17.0 ppb (17) | N/A | N/A | 24.0 ppb (23) | N/A | N/A | 17.8 μg/m3 (63) | 63.0 | |
| April 4, 2021, 5 a.m. | 16.0 ppb (16) | 0.5 ppb (1) | N/A | 15.0 ppb (15) | N/A | N/A | 29.0 ppb (27) | N/A | N/A | 20.0 μg/m3 (68) | 68.0 | |
| April 4, 2021, 4 a.m. | 13.0 ppb (13) | 0.5 ppb (1) | N/A | 12.0 ppb (12) | N/A | N/A | 36.0 ppb (34) | N/A | N/A | 19.6 μg/m3 (67) | 67.0 | |
| April 4, 2021, 3 a.m. | 11.3 ppb (11) | 0.4 ppb (1) | N/A | 11.0 ppb (11) | N/A | N/A | 40.0 ppb (38) | N/A | N/A | 13.3 μg/m3 (54) | 54.0 | |
| April 4, 2021, 2 a.m. | 8.1 ppb (8) | 0.3 ppb (1) | N/A | 8.0 ppb (8) | N/A | N/A | 45.0 ppb (42) | N/A | N/A | 12.1 μg/m3 (51) | 51.0 | |
| April 4, 2021, 1 a.m. | 5.9 ppb (6) | 0.5 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | 51.0 ppb (48) | N/A | N/A | 12.6 μg/m3 (53) | 53.0 | |
| April 4, 2021, midnight | 5.0 ppb (5) | 0.6 ppb (1) | N/A | 4.0 ppb (4) | N/A | N/A | 57.0 ppb (58) | N/A | N/A | 14.5 μg/m3 (57) | 58.0 | |
| April 3, 2021, 11 p.m. | 5.6 ppb (6) | 0.5 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | 68.0 ppb (94) | N/A | N/A | 15.1 μg/m3 (58) | 94.0 | |
| April 3, 2021, 10 p.m. | 6.0 ppb (6) | 0.6 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | 71.0 ppb (101) | N/A | N/A | 14.3 μg/m3 (56) | 101.0 | |
| April 3, 2021, 9 p.m. | 6.7 ppb (7) | 0.7 ppb (1) | N/A | 6.0 ppb (6) | N/A | N/A | 70.0 ppb (100) | N/A | N/A | 16.1 μg/m3 (60) | 100.0 | |
| April 3, 2021, 8 p.m. | 8.1 ppb (8) | 0.8 ppb (1) | N/A | 7.0 ppb (7) | N/A | N/A | 73.0 ppb (103) | N/A | N/A | 16.8 μg/m3 (61) | 103.0 | |
| April 3, 2021, 7 p.m. | 10.7 ppb (11) | 1.4 ppb (2) | N/A | 9.0 ppb (9) | N/A | N/A | 62.0 ppb (74) | N/A | N/A | 15.6 μg/m3 (59) | 74.0 | |
| April 3, 2021, 6 p.m. | 12.5 ppb (12) | 2.1 ppb (2) | N/A | 10.0 ppb (10) | N/A | N/A | 51.0 ppb (48) | N/A | N/A | 22.9 μg/m3 (74) | 74.0 | |
| April 3, 2021, 5 p.m. | 14.9 ppb (15) | 3.6 ppb (4) | N/A | 11.0 ppb (11) | N/A | N/A | 41.0 ppb (38) | N/A | N/A | 26.5 μg/m3 (82) | 82.0 | |
| April 3, 2021, 4 p.m. | 17.0 ppb (17) | 4.8 ppb (5) | N/A | 12.0 ppb (12) | N/A | N/A | 24.0 ppb (23) | N/A | N/A | 24.3 μg/m3 (77) | 77.0 | |
| April 3, 2021, 3 p.m. | 15.8 ppb (15) | 3.0 ppb (3) | N/A | 13.0 ppb (13) | N/A | N/A | 18.0 ppb (17) | N/A | N/A | 15.5 μg/m3 (59) | 59.0 | |
| April 3, 2021, 2 p.m. | 16.0 ppb (16) | 2.6 ppb (3) | N/A | 13.0 ppb (13) | N/A | N/A | 16.0 ppb (15) | N/A | N/A | 21.4 μg/m3 (71) | 71.0 | |
| April 3, 2021, 1 p.m. | 18.6 ppb (18) | 2.0 ppb (2) | N/A | 17.0 ppb (17) | N/A | N/A | 8.0 ppb (8) | N/A | N/A | 11.6 μg/m3 (49) | 49.0 | |
| April 3, 2021, noon | 20.0 ppb (19) | 2.3 ppb (3) | N/A | 18.0 ppb (17) | N/A | N/A | 4.0 ppb (4) | N/A | N/A | 19.6 μg/m3 (67) | 67.0 | |
| April 3, 2021, 11 a.m. | 18.1 ppb (18) | 1.2 ppb (2) | N/A | 17.0 ppb (17) | N/A | N/A | 7.0 ppb (7) | N/A | N/A | 19.9 μg/m3 (68) | 68.0 |