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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| June 18, 2021, 4 a.m. | 9.5 ppb (9) | 0.4 ppb (1) | N/A | 9.0 ppb (9) | N/A | N/A | 32.0 ppb (30) | N/A | N/A | N/A | 30.0 | |
| June 18, 2021, 3 a.m. | 9.2 ppb (9) | 0.3 ppb (1) | N/A | 9.0 ppb (9) | N/A | N/A | 39.0 ppb (37) | N/A | N/A | N/A | 37.0 | |
| June 18, 2021, 2 a.m. | 7.8 ppb (8) | 0.4 ppb (1) | N/A | 7.0 ppb (7) | N/A | N/A | 48.0 ppb (45) | N/A | N/A | N/A | 45.0 | |
| June 18, 2021, 1 a.m. | 6.6 ppb (7) | 0.6 ppb (1) | N/A | 6.0 ppb (6) | N/A | N/A | 55.0 ppb (51) | N/A | N/A | N/A | 51.0 | |
| June 18, 2021, midnight | 6.7 ppb (7) | 0.8 ppb (1) | N/A | 6.0 ppb (6) | N/A | N/A | 55.0 ppb (51) | N/A | N/A | N/A | 51.0 | |
| June 17, 2021, 11 p.m. | 7.7 ppb (8) | 1.0 ppb (1) | N/A | 7.0 ppb (7) | N/A | N/A | 59.0 ppb (65) | N/A | N/A | N/A | 65.0 | |
| June 17, 2021, 10 p.m. | 9.4 ppb (9) | 1.4 ppb (2) | N/A | 8.0 ppb (8) | N/A | N/A | 60.0 ppb (68) | N/A | N/A | N/A | 68.0 | |
| June 17, 2021, 9 p.m. | 11.1 ppb (11) | 1.6 ppb (2) | N/A | 9.0 ppb (9) | N/A | N/A | 60.0 ppb (68) | N/A | N/A | N/A | 68.0 | |
| June 17, 2021, 8 p.m. | 14.7 ppb (14) | 1.7 ppb (2) | N/A | 13.0 ppb (13) | N/A | N/A | 73.0 ppb (103) | N/A | N/A | N/A | 103.0 | |
| June 17, 2021, 7 p.m. | 24.8 ppb (24) | 4.1 ppb (4) | N/A | 21.0 ppb (20) | N/A | N/A | 64.0 ppb (81) | N/A | N/A | N/A | 81.0 | |
| June 17, 2021, 6 p.m. | 39.9 ppb (38) | 10.3 ppb (10) | N/A | 30.0 ppb (29) | N/A | N/A | 37.0 ppb (35) | N/A | N/A | N/A | 38.0 | |
| June 17, 2021, 5 p.m. | 36.6 ppb (35) | 8.3 ppb (8) | N/A | 28.0 ppb (27) | N/A | N/A | 24.0 ppb (23) | N/A | N/A | N/A | 35.0 | |
| June 17, 2021, 4 p.m. | 27.4 ppb (26) | 6.1 ppb (6) | N/A | 21.0 ppb (20) | N/A | N/A | 30.0 ppb (28) | N/A | N/A | N/A | 28.0 | |
| June 17, 2021, 3 p.m. | 36.1 ppb (35) | 12.6 ppb (12) | N/A | 23.0 ppb (22) | N/A | N/A | 21.0 ppb (20) | N/A | N/A | 23.2 μg/m3 (75) | 75.0 | |
| June 17, 2021, 2 p.m. | 38.2 ppb (37) | 16.0 ppb (16) | N/A | 22.0 ppb (21) | N/A | N/A | 13.0 ppb (13) | N/A | N/A | 23.2 μg/m3 (75) | 75.0 | |
| June 17, 2021, 1 p.m. | 29.5 ppb (28) | 9.7 ppb (10) | N/A | 20.0 ppb (19) | N/A | N/A | 8.0 ppb (8) | N/A | N/A | 23.2 μg/m3 (75) | 75.0 | |
| June 17, 2021, noon | 25.4 ppb (24) | 3.5 ppb (4) | N/A | 22.0 ppb (21) | N/A | N/A | 5.0 ppb (5) | N/A | N/A | 23.2 μg/m3 (75) | 75.0 | |
| June 17, 2021, 11 a.m. | 24.1 ppb (23) | 2.3 ppb (3) | N/A | 22.0 ppb (21) | N/A | N/A | 6.0 ppb (6) | N/A | N/A | 23.2 μg/m3 (75) | 75.0 | |
| June 17, 2021, 10 a.m. | 23.8 ppb (23) | 1.3 ppb (2) | N/A | 22.0 ppb (21) | N/A | N/A | 5.0 ppb (5) | N/A | N/A | 23.2 μg/m3 (75) | 75.0 | |
| June 17, 2021, 9 a.m. | 17.4 ppb (17) | 0.8 ppb (1) | N/A | 17.0 ppb (17) | N/A | N/A | 10.0 ppb (10) | N/A | N/A | 23.2 μg/m3 (75) | 75.0 | |
| June 17, 2021, 8 a.m. | 17.2 ppb (17) | 0.8 ppb (1) | N/A | 16.0 ppb (16) | N/A | N/A | 12.0 ppb (12) | N/A | N/A | 23.2 μg/m3 (75) | 75.0 | |
| June 17, 2021, 7 a.m. | 16.3 ppb (16) | 0.4 ppb (1) | N/A | 16.0 ppb (16) | N/A | N/A | 15.0 ppb (14) | N/A | N/A | 23.2 μg/m3 (75) | 75.0 | |
| June 17, 2021, 6 a.m. | 16.7 ppb (16) | 0.5 ppb (1) | N/A | 16.0 ppb (16) | N/A | N/A | 16.0 ppb (15) | N/A | N/A | 18.1 μg/m3 (64) | 64.0 | |
| June 17, 2021, 5 a.m. | 13.4 ppb (13) | 0.4 ppb (1) | N/A | 13.0 ppb (13) | N/A | N/A | 20.0 ppb (19) | N/A | N/A | 18.1 μg/m3 (64) | 64.0 | |
| June 17, 2021, 4 a.m. | 13.7 ppb (13) | 0.4 ppb (1) | N/A | 13.0 ppb (13) | N/A | N/A | 21.0 ppb (20) | N/A | N/A | 18.1 μg/m3 (64) | 64.0 | |
| June 17, 2021, 3 a.m. | 13.1 ppb (13) | 0.3 ppb (1) | N/A | 13.0 ppb (13) | N/A | N/A | 24.0 ppb (23) | N/A | N/A | 18.1 μg/m3 (64) | 64.0 | |
| June 17, 2021, 2 a.m. | 12.4 ppb (12) | 0.6 ppb (1) | N/A | 12.0 ppb (12) | N/A | N/A | 33.0 ppb (31) | N/A | N/A | 20.1 μg/m3 (68) | 68.0 | |
| June 17, 2021, 1 a.m. | 12.1 ppb (12) | 0.8 ppb (1) | N/A | 11.0 ppb (11) | N/A | N/A | 53.0 ppb (50) | N/A | N/A | 20.1 μg/m3 (68) | 68.0 | |
| June 17, 2021, midnight | 10.4 ppb (10) | 0.9 ppb (1) | N/A | 10.0 ppb (10) | N/A | N/A | 66.0 ppb (87) | N/A | N/A | 20.1 μg/m3 (68) | 87.0 | |
| June 16, 2021, 11 p.m. | 10.0 ppb (10) | 1.1 ppb (2) | N/A | 9.0 ppb (9) | N/A | N/A | 67.0 ppb (91) | N/A | N/A | 23.7 μg/m3 (76) | 91.0 | |
| June 16, 2021, 10 p.m. | 10.5 ppb (10) | 1.3 ppb (2) | N/A | 9.0 ppb (9) | N/A | N/A | 61.0 ppb (71) | N/A | N/A | 23.8 μg/m3 (76) | 76.0 | |
| June 16, 2021, 9 p.m. | 10.7 ppb (11) | 1.3 ppb (2) | N/A | 9.0 ppb (9) | N/A | N/A | 69.0 ppb (97) | N/A | N/A | 14.9 μg/m3 (57) | 97.0 | |
| June 16, 2021, 8 p.m. | 13.0 ppb (13) | 1.7 ppb (2) | N/A | 11.0 ppb (11) | N/A | N/A | 66.0 ppb (87) | N/A | N/A | N/A | 87.0 | |
| June 16, 2021, 7 p.m. | 16.5 ppb (16) | 2.6 ppb (3) | N/A | 14.0 ppb (14) | N/A | N/A | 58.0 ppb (61) | N/A | N/A | N/A | 61.0 | |
| June 16, 2021, 6 p.m. | 23.4 ppb (23) | 4.9 ppb (5) | N/A | 18.0 ppb (17) | N/A | N/A | 50.0 ppb (47) | N/A | N/A | N/A | 47.0 | |
| June 16, 2021, 5 p.m. | 24.7 ppb (24) | 6.0 ppb (6) | N/A | 19.0 ppb (18) | N/A | N/A | 39.0 ppb (37) | N/A | N/A | N/A | 37.0 | |
| June 16, 2021, 4 p.m. | 18.2 ppb (18) | 4.6 ppb (5) | N/A | 14.0 ppb (14) | N/A | N/A | 34.0 ppb (32) | N/A | N/A | N/A | 32.0 | |
| June 16, 2021, 3 p.m. | 17.1 ppb (17) | 3.9 ppb (4) | N/A | 13.0 ppb (13) | N/A | N/A | 29.0 ppb (27) | N/A | N/A | N/A | 27.0 | |
| June 16, 2021, 2 p.m. | 16.4 ppb (16) | 3.1 ppb (3) | N/A | 13.0 ppb (13) | N/A | N/A | 23.0 ppb (22) | N/A | N/A | N/A | 22.0 | |
| June 16, 2021, 1 p.m. | 12.6 ppb (12) | 1.2 ppb (2) | N/A | 11.0 ppb (11) | N/A | N/A | 21.0 ppb (20) | N/A | N/A | N/A | 20.0 | |
| June 16, 2021, noon | 11.4 ppb (11) | 0.7 ppb (1) | N/A | 11.0 ppb (11) | N/A | N/A | 21.0 ppb (20) | N/A | N/A | N/A | 20.0 | |
| June 16, 2021, 11 a.m. | 8.0 ppb (8) | 0.4 ppb (1) | N/A | 8.0 ppb (8) | N/A | N/A | 25.0 ppb (24) | N/A | N/A | N/A | 24.0 | |
| June 16, 2021, 10 a.m. | 8.9 ppb (9) | 0.5 ppb (1) | N/A | 8.0 ppb (8) | N/A | N/A | 26.0 ppb (25) | N/A | N/A | N/A | 25.0 | |
| June 16, 2021, 9 a.m. | 9.9 ppb (10) | 0.4 ppb (1) | N/A | 9.0 ppb (9) | N/A | N/A | 26.0 ppb (25) | N/A | N/A | N/A | 25.0 | |
| June 16, 2021, 8 a.m. | 17.3 ppb (17) | 0.5 ppb (1) | N/A | 17.0 ppb (17) | N/A | N/A | 19.0 ppb (18) | N/A | N/A | N/A | 18.0 | |
| June 16, 2021, 7 a.m. | 28.4 ppb (27) | 0.5 ppb (1) | N/A | 28.0 ppb (27) | N/A | N/A | 13.0 ppb (13) | N/A | N/A | N/A | 27.0 | |
| June 16, 2021, 6 a.m. | 26.2 ppb (25) | 0.6 ppb (1) | N/A | 26.0 ppb (25) | N/A | N/A | 18.0 ppb (17) | N/A | N/A | N/A | 25.0 | |
| June 16, 2021, 5 a.m. | 34.5 ppb (33) | 0.7 ppb (1) | N/A | 34.0 ppb (33) | N/A | N/A | 13.0 ppb (13) | N/A | N/A | N/A | 33.0 | |
| June 16, 2021, 4 a.m. | 28.6 ppb (27) | 0.5 ppb (1) | N/A | 28.0 ppb (27) | N/A | N/A | 22.0 ppb (21) | N/A | N/A | N/A | 27.0 | |
| June 16, 2021, 3 a.m. | 24.3 ppb (23) | 0.4 ppb (1) | N/A | 24.0 ppb (23) | N/A | N/A | 32.0 ppb (30) | N/A | N/A | N/A | 30.0 | |
| June 16, 2021, 2 a.m. | 17.8 ppb (17) | 0.3 ppb (1) | N/A | 17.0 ppb (17) | N/A | N/A | 62.0 ppb (74) | N/A | N/A | N/A | 74.0 | |
| June 16, 2021, 1 a.m. | 15.6 ppb (15) | 0.6 ppb (1) | N/A | 15.0 ppb (15) | N/A | N/A | 76.0 ppb (104) | N/A | N/A | N/A | 104.0 | |
| June 16, 2021, midnight | 12.9 ppb (13) | 0.7 ppb (1) | N/A | 12.0 ppb (12) | N/A | N/A | 76.0 ppb (104) | N/A | N/A | N/A | 104.0 | |
| June 15, 2021, 11 p.m. | 8.8 ppb (9) | 0.5 ppb (1) | N/A | 8.0 ppb (8) | N/A | N/A | 79.0 ppb (106) | N/A | N/A | N/A | 106.0 | |
| June 15, 2021, 10 p.m. | 8.0 ppb (8) | 0.5 ppb (1) | N/A | 7.0 ppb (7) | N/A | N/A | 80.0 ppb (106) | N/A | N/A | N/A | 106.0 | |
| June 15, 2021, 9 p.m. | 7.7 ppb (8) | 0.5 ppb (1) | N/A | 7.0 ppb (7) | N/A | N/A | 87.0 ppb (110) | N/A | N/A | N/A | 110.0 | |
| June 15, 2021, 8 p.m. | 13.2 ppb (13) | 1.0 ppb (1) | N/A | 12.0 ppb (12) | N/A | N/A | 96.0 ppb (115) | N/A | N/A | N/A | 115.0 | |
| June 15, 2021, 7 p.m. | 17.4 ppb (17) | 2.0 ppb (2) | N/A | 15.0 ppb (15) | N/A | N/A | 76.0 ppb (104) | N/A | N/A | N/A | 104.0 | |
| June 15, 2021, 6 p.m. | 19.5 ppb (19) | 3.2 ppb (4) | N/A | 16.0 ppb (16) | N/A | N/A | 63.0 ppb (78) | N/A | N/A | N/A | 78.0 | |
| June 15, 2021, 5 p.m. | 17.6 ppb (17) | 3.7 ppb (4) | N/A | 14.0 ppb (14) | N/A | N/A | 44.0 ppb (41) | N/A | N/A | N/A | 41.0 | |
| June 15, 2021, 4 p.m. | 18.9 ppb (18) | 4.9 ppb (5) | N/A | 14.0 ppb (14) | N/A | N/A | 35.0 ppb (33) | N/A | N/A | N/A | 33.0 | |
| June 15, 2021, 3 p.m. | 25.8 ppb (25) | 8.5 ppb (9) | N/A | 17.0 ppb (17) | N/A | N/A | 25.0 ppb (24) | N/A | N/A | N/A | 25.0 | |
| June 15, 2021, 2 p.m. | 32.4 ppb (31) | 13.8 ppb (14) | N/A | 19.0 ppb (18) | N/A | N/A | 12.0 ppb (12) | N/A | N/A | N/A | 31.0 | |
| June 15, 2021, 1 p.m. | 37.7 ppb (36) | 18.1 ppb (18) | N/A | 20.0 ppb (19) | N/A | N/A | 7.0 ppb (7) | N/A | N/A | N/A | 36.0 | |
| June 15, 2021, noon | 30.1 ppb (29) | 9.4 ppb (9) | N/A | 21.0 ppb (20) | N/A | N/A | 4.0 ppb (4) | N/A | N/A | N/A | 29.0 | |
| June 15, 2021, 11 a.m. | 31.6 ppb (30) | 8.7 ppb (9) | N/A | 23.0 ppb (22) | N/A | N/A | 4.0 ppb (4) | N/A | N/A | N/A | 30.0 | |
| June 15, 2021, 10 a.m. | 32.5 ppb (31) | 8.8 ppb (9) | N/A | 24.0 ppb (23) | N/A | N/A | 4.0 ppb (4) | N/A | N/A | N/A | 31.0 | |
| June 15, 2021, 9 a.m. | 31.4 ppb (30) | 5.5 ppb (6) | N/A | 26.0 ppb (25) | N/A | N/A | 3.0 ppb (3) | N/A | N/A | N/A | 30.0 | |
| June 15, 2021, 8 a.m. | 34.1 ppb (33) | 7.1 ppb (7) | N/A | 27.0 ppb (26) | N/A | N/A | 3.0 ppb (3) | N/A | N/A | N/A | 33.0 | |
| June 15, 2021, 7 a.m. | 38.1 ppb (36) | 7.7 ppb (8) | N/A | 30.0 ppb (29) | N/A | N/A | 2.0 ppb (2) | N/A | N/A | N/A | 36.0 | |
| June 15, 2021, 6 a.m. | 32.1 ppb (31) | 2.5 ppb (3) | N/A | 30.0 ppb (29) | N/A | N/A | 4.0 ppb (4) | N/A | N/A | N/A | 31.0 | |
| June 15, 2021, 5 a.m. | 23.3 ppb (22) | 1.0 ppb (1) | N/A | 22.0 ppb (21) | N/A | N/A | 13.0 ppb (13) | N/A | N/A | N/A | 22.0 | |
| June 15, 2021, 4 a.m. | 19.5 ppb (19) | 0.6 ppb (1) | N/A | 19.0 ppb (18) | N/A | N/A | 17.0 ppb (16) | N/A | N/A | N/A | 19.0 | |
| June 15, 2021, 3 a.m. | 15.5 ppb (15) | 0.5 ppb (1) | N/A | 15.0 ppb (15) | N/A | N/A | 23.0 ppb (22) | N/A | N/A | N/A | 22.0 | |
| June 15, 2021, 2 a.m. | 12.2 ppb (12) | 0.9 ppb (1) | N/A | 11.0 ppb (11) | N/A | N/A | 27.0 ppb (25) | N/A | N/A | N/A | 25.0 | |
| June 15, 2021, 1 a.m. | 7.3 ppb (7) | 1.0 ppb (1) | N/A | 6.0 ppb (6) | N/A | N/A | 37.0 ppb (35) | N/A | N/A | N/A | 35.0 | |
| June 15, 2021, midnight | 5.4 ppb (6) | 1.1 ppb (2) | N/A | 4.0 ppb (4) | N/A | N/A | 37.0 ppb (35) | N/A | N/A | N/A | 35.0 | |
| June 14, 2021, 11 p.m. | 5.7 ppb (6) | 0.9 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | 49.0 ppb (46) | N/A | N/A | N/A | 46.0 | |
| June 14, 2021, 10 p.m. | 6.3 ppb (6) | 1.0 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | 57.0 ppb (58) | N/A | N/A | N/A | 58.0 | |
| June 14, 2021, 9 p.m. | 5.7 ppb (6) | 0.7 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | 60.0 ppb (68) | N/A | N/A | N/A | 68.0 | |
| June 14, 2021, 8 p.m. | 9.5 ppb (9) | 1.1 ppb (2) | N/A | 8.0 ppb (8) | N/A | N/A | 66.0 ppb (87) | N/A | N/A | N/A | 87.0 | |
| June 14, 2021, 7 p.m. | 15.2 ppb (15) | 1.9 ppb (2) | N/A | 13.0 ppb (13) | N/A | N/A | 72.0 ppb (102) | N/A | N/A | N/A | 102.0 | |
| June 14, 2021, 6 p.m. | 16.6 ppb (16) | 2.5 ppb (3) | N/A | 14.0 ppb (14) | N/A | N/A | 65.0 ppb (84) | N/A | N/A | N/A | 84.0 | |
| June 14, 2021, 5 p.m. | 19.7 ppb (19) | 3.9 ppb (4) | N/A | 16.0 ppb (16) | N/A | N/A | 51.0 ppb (48) | N/A | N/A | N/A | 48.0 | |
| June 14, 2021, 4 p.m. | 16.1 ppb (16) | 3.7 ppb (4) | N/A | 12.0 ppb (12) | N/A | N/A | 44.0 ppb (41) | N/A | N/A | N/A | 41.0 | |
| June 14, 2021, 3 p.m. | 25.0 ppb (24) | 8.3 ppb (8) | N/A | 17.0 ppb (17) | N/A | N/A | 25.0 ppb (24) | N/A | N/A | N/A | 24.0 | |
| June 14, 2021, 2 p.m. | 33.5 ppb (32) | 13.8 ppb (14) | N/A | 20.0 ppb (19) | N/A | N/A | 15.0 ppb (14) | N/A | N/A | N/A | 32.0 | |
| June 14, 2021, 1 p.m. | 28.4 ppb (27) | 10.9 ppb (11) | N/A | 17.0 ppb (17) | N/A | N/A | 9.0 ppb (9) | N/A | N/A | N/A | 27.0 | |
| June 14, 2021, noon | 22.1 ppb (21) | 4.6 ppb (5) | N/A | 18.0 ppb (17) | N/A | N/A | 6.0 ppb (6) | N/A | N/A | N/A | 21.0 | |
| June 14, 2021, 11 a.m. | 16.3 ppb (16) | 1.3 ppb (2) | N/A | 15.0 ppb (15) | N/A | N/A | 8.0 ppb (8) | N/A | N/A | N/A | 16.0 | |
| June 14, 2021, 10 a.m. | 15.3 ppb (15) | 0.7 ppb (1) | N/A | 15.0 ppb (15) | N/A | N/A | 10.0 ppb (10) | N/A | N/A | N/A | 15.0 | |
| June 14, 2021, 9 a.m. | 14.2 ppb (14) | 0.5 ppb (1) | N/A | 14.0 ppb (14) | N/A | N/A | 13.0 ppb (13) | N/A | N/A | N/A | 14.0 | |
| June 14, 2021, 8 a.m. | 15.1 ppb (15) | 0.6 ppb (1) | N/A | 14.0 ppb (14) | N/A | N/A | 13.0 ppb (13) | N/A | N/A | N/A | 15.0 | |
| June 14, 2021, 7 a.m. | 18.4 ppb (18) | 0.6 ppb (1) | N/A | 18.0 ppb (17) | N/A | N/A | 12.0 ppb (12) | N/A | N/A | N/A | 18.0 | |
| June 14, 2021, 6 a.m. | 16.6 ppb (16) | 0.6 ppb (1) | N/A | 16.0 ppb (16) | N/A | N/A | 13.0 ppb (13) | N/A | N/A | N/A | 16.0 | |
| June 14, 2021, 5 a.m. | 15.0 ppb (15) | 0.5 ppb (1) | N/A | 15.0 ppb (15) | N/A | N/A | 18.0 ppb (17) | N/A | N/A | N/A | 17.0 | |
| June 14, 2021, 4 a.m. | 11.5 ppb (11) | 0.3 ppb (1) | N/A | 11.0 ppb (11) | N/A | N/A | 24.0 ppb (23) | N/A | N/A | N/A | 23.0 | |
| June 14, 2021, 3 a.m. | 8.6 ppb (9) | 0.2 ppb (1) | N/A | 8.0 ppb (8) | N/A | N/A | 32.0 ppb (30) | N/A | N/A | N/A | 30.0 | |
| June 14, 2021, 2 a.m. | 5.6 ppb (6) | 0.4 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | 43.0 ppb (40) | N/A | N/A | N/A | 40.0 | |
| June 14, 2021, 1 a.m. | 4.1 ppb (4) | 0.5 ppb (1) | N/A | 4.0 ppb (4) | N/A | N/A | 53.0 ppb (50) | N/A | N/A | N/A | 50.0 | |
| June 14, 2021, midnight | 4.3 ppb (5) | 0.5 ppb (1) | N/A | 4.0 ppb (4) | N/A | N/A | 66.0 ppb (87) | N/A | N/A | N/A | 87.0 | |
| June 13, 2021, 11 p.m. | 3.6 ppb (4) | 0.4 ppb (1) | N/A | 3.0 ppb (3) | N/A | N/A | 74.0 ppb (103) | N/A | N/A | N/A | 103.0 | |
| June 13, 2021, 10 p.m. | 3.8 ppb (4) | 0.3 ppb (1) | N/A | 3.0 ppb (3) | N/A | N/A | 77.0 ppb (105) | N/A | N/A | N/A | 105.0 | |
| June 13, 2021, 9 p.m. | 3.7 ppb (4) | 0.3 ppb (1) | N/A | 3.0 ppb (3) | N/A | N/A | 80.0 ppb (106) | N/A | N/A | N/A | 106.0 | |
| June 13, 2021, 8 p.m. | 5.8 ppb (6) | 0.4 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | 81.0 ppb (107) | N/A | N/A | N/A | 107.0 | |
| June 13, 2021, 7 p.m. | 6.9 ppb (7) | 0.6 ppb (1) | N/A | 6.0 ppb (6) | N/A | N/A | 76.0 ppb (104) | N/A | N/A | N/A | 104.0 | |
| June 13, 2021, 6 p.m. | 9.9 ppb (10) | 1.4 ppb (2) | N/A | 8.0 ppb (8) | N/A | N/A | 62.0 ppb (74) | N/A | N/A | N/A | 74.0 | |
| June 13, 2021, 5 p.m. | 12.4 ppb (12) | 2.8 ppb (3) | N/A | 10.0 ppb (10) | N/A | N/A | 45.0 ppb (42) | N/A | N/A | N/A | 42.0 | |
| June 13, 2021, 4 p.m. | 15.8 ppb (15) | 4.5 ppb (5) | N/A | 11.0 ppb (11) | N/A | N/A | 33.0 ppb (31) | N/A | N/A | N/A | 31.0 | |
| June 13, 2021, 3 p.m. | 15.0 ppb (15) | 4.4 ppb (5) | N/A | 11.0 ppb (11) | N/A | N/A | 28.0 ppb (26) | N/A | N/A | N/A | 26.0 | |
| June 13, 2021, 2 p.m. | 16.3 ppb (16) | 4.9 ppb (5) | N/A | 11.0 ppb (11) | N/A | N/A | 21.0 ppb (20) | N/A | N/A | N/A | 20.0 | |
| June 13, 2021, 1 p.m. | 17.2 ppb (17) | 3.3 ppb (4) | N/A | 14.0 ppb (14) | N/A | N/A | 14.0 ppb (13) | N/A | N/A | N/A | 17.0 | |
| June 13, 2021, noon | 20.0 ppb (19) | 1.5 ppb (2) | N/A | 18.0 ppb (17) | N/A | N/A | 9.0 ppb (9) | N/A | N/A | N/A | 19.0 | |
| June 13, 2021, 11 a.m. | 21.2 ppb (20) | 0.9 ppb (1) | N/A | 20.0 ppb (19) | N/A | N/A | 9.0 ppb (9) | N/A | N/A | N/A | 20.0 | |
| June 13, 2021, 10 a.m. | 20.6 ppb (20) | 1.1 ppb (2) | N/A | 19.0 ppb (18) | N/A | N/A | 10.0 ppb (10) | N/A | N/A | N/A | 20.0 | |
| June 13, 2021, 9 a.m. | 18.5 ppb (18) | 0.6 ppb (1) | N/A | 18.0 ppb (17) | N/A | N/A | 14.0 ppb (13) | N/A | N/A | N/A | 18.0 | |
| June 13, 2021, 8 a.m. | 16.6 ppb (16) | 0.7 ppb (1) | N/A | 16.0 ppb (16) | N/A | N/A | 17.0 ppb (16) | N/A | N/A | N/A | 16.0 | |
| June 13, 2021, 7 a.m. | 14.7 ppb (14) | 0.4 ppb (1) | N/A | 14.0 ppb (14) | N/A | N/A | 23.0 ppb (22) | N/A | N/A | N/A | 22.0 | |
| June 13, 2021, 6 a.m. | 13.1 ppb (13) | 0.4 ppb (1) | N/A | 13.0 ppb (13) | N/A | N/A | 27.0 ppb (25) | N/A | N/A | N/A | 25.0 | |
| June 13, 2021, 5 a.m. | 8.8 ppb (9) | 0.2 ppb (1) | N/A | 9.0 ppb (9) | N/A | N/A | 36.0 ppb (34) | N/A | N/A | N/A | 34.0 | |
| June 13, 2021, 4 a.m. | 7.0 ppb (7) | 0.2 ppb (1) | N/A | 7.0 ppb (7) | N/A | N/A | 41.0 ppb (38) | N/A | N/A | N/A | 38.0 | |
| June 13, 2021, 3 a.m. | 4.7 ppb (5) | 0.2 ppb (1) | N/A | 4.0 ppb (4) | N/A | N/A | 46.0 ppb (43) | N/A | N/A | N/A | 43.0 | |
| June 13, 2021, 2 a.m. | 4.7 ppb (5) | 0.3 ppb (1) | N/A | 4.0 ppb (4) | N/A | N/A | 50.0 ppb (47) | N/A | N/A | 13.4 μg/m3 (54) | 54.0 | |
| June 13, 2021, 1 a.m. | 4.4 ppb (5) | 0.5 ppb (1) | N/A | 4.0 ppb (4) | N/A | N/A | 60.0 ppb (68) | N/A | N/A | 13.4 μg/m3 (54) | 68.0 | |
| June 13, 2021, midnight | 5.0 ppb (5) | 0.5 ppb (1) | N/A | 4.0 ppb (4) | N/A | N/A | 68.0 ppb (94) | N/A | N/A | 13.4 μg/m3 (54) | 94.0 | |
| June 12, 2021, 11 p.m. | 5.7 ppb (6) | 0.5 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | 75.0 ppb (104) | N/A | N/A | 13.4 μg/m3 (54) | 104.0 | |
| June 12, 2021, 10 p.m. | 5.5 ppb (6) | 0.5 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | 78.0 ppb (105) | N/A | N/A | 13.4 μg/m3 (54) | 105.0 | |
| June 12, 2021, 9 p.m. | 7.0 ppb (7) | 0.4 ppb (1) | N/A | 7.0 ppb (7) | N/A | N/A | 90.0 ppb (112) | N/A | N/A | 13.4 μg/m3 (54) | 112.0 | |
| June 12, 2021, 8 p.m. | 13.9 ppb (14) | 1.5 ppb (2) | N/A | 12.0 ppb (12) | N/A | N/A | 79.0 ppb (106) | N/A | N/A | 13.4 μg/m3 (54) | 106.0 | |
| June 12, 2021, 7 p.m. | 15.7 ppb (15) | 1.9 ppb (2) | N/A | 14.0 ppb (14) | N/A | N/A | 72.0 ppb (102) | N/A | N/A | 13.4 μg/m3 (54) | 102.0 | |
| June 12, 2021, 6 p.m. | 16.8 ppb (16) | 2.3 ppb (3) | N/A | 14.0 ppb (14) | N/A | N/A | 68.0 ppb (94) | N/A | N/A | 13.4 μg/m3 (54) | 94.0 | |
| June 12, 2021, 5 p.m. | 21.3 ppb (21) | 4.2 ppb (4) | N/A | 17.0 ppb (17) | N/A | N/A | 51.0 ppb (48) | N/A | N/A | 13.4 μg/m3 (54) | 54.0 | |
| June 12, 2021, 4 p.m. | 13.3 ppb (13) | 2.4 ppb (3) | N/A | 11.0 ppb (11) | N/A | N/A | 48.0 ppb (45) | N/A | N/A | 13.4 μg/m3 (54) | 54.0 | |
| June 12, 2021, 3 p.m. | 18.7 ppb (18) | 4.4 ppb (5) | N/A | 14.0 ppb (14) | N/A | N/A | 36.0 ppb (34) | N/A | N/A | 13.4 μg/m3 (54) | 54.0 | |
| June 12, 2021, 2 p.m. | 25.7 ppb (25) | 7.7 ppb (8) | N/A | 18.0 ppb (17) | N/A | N/A | 23.0 ppb (22) | N/A | N/A | 13.4 μg/m3 (54) | 54.0 | |
| June 12, 2021, 1 p.m. | 27.0 ppb (26) | 7.5 ppb (8) | N/A | 20.0 ppb (19) | N/A | N/A | 9.0 ppb (9) | N/A | N/A | 13.4 μg/m3 (54) | 54.0 | |
| June 12, 2021, noon | 27.2 ppb (26) | 4.8 ppb (5) | N/A | 22.0 ppb (21) | N/A | N/A | 4.0 ppb (4) | N/A | N/A | 13.4 μg/m3 (54) | 54.0 | |
| June 12, 2021, 11 a.m. | 21.7 ppb (21) | 1.3 ppb (2) | N/A | 20.0 ppb (19) | N/A | N/A | 7.0 ppb (7) | N/A | N/A | 13.4 μg/m3 (54) | 54.0 | |
| June 12, 2021, 10 a.m. | 20.2 ppb (20) | 1.1 ppb (2) | N/A | 19.0 ppb (18) | N/A | N/A | 9.0 ppb (9) | N/A | N/A | 13.4 μg/m3 (54) | 54.0 | |
| June 12, 2021, 9 a.m. | 19.6 ppb (19) | 0.8 ppb (1) | N/A | 19.0 ppb (18) | N/A | N/A | 11.0 ppb (11) | N/A | N/A | 14.6 μg/m3 (57) | 57.0 | |
| June 12, 2021, 8 a.m. | 20.2 ppb (20) | 0.7 ppb (1) | N/A | 20.0 ppb (19) | N/A | N/A | 13.0 ppb (13) | N/A | N/A | 15.6 μg/m3 (59) | 59.0 | |
| June 12, 2021, 7 a.m. | 17.7 ppb (17) | 0.4 ppb (1) | N/A | 17.0 ppb (17) | N/A | N/A | 21.0 ppb (20) | N/A | N/A | 13.6 μg/m3 (55) | 55.0 | |
| June 12, 2021, 6 a.m. | 15.0 ppb (15) | 0.4 ppb (1) | N/A | 15.0 ppb (15) | N/A | N/A | 25.0 ppb (24) | N/A | N/A | 11.2 μg/m3 (47) | 47.0 | |
| June 12, 2021, 5 a.m. | 10.9 ppb (11) | 0.3 ppb (1) | N/A | 11.0 ppb (11) | N/A | N/A | 33.0 ppb (31) | N/A | N/A | 11.0 μg/m3 (46) | 46.0 | |
| June 12, 2021, 4 a.m. | 8.9 ppb (9) | 0.3 ppb (1) | N/A | 9.0 ppb (9) | N/A | N/A | 39.0 ppb (37) | N/A | N/A | 12.4 μg/m3 (52) | 52.0 | |
| June 12, 2021, 3 a.m. | 8.8 ppb (9) | 0.2 ppb (1) | N/A | 9.0 ppb (9) | N/A | N/A | 44.0 ppb (41) | N/A | N/A | 12.7 μg/m3 (53) | 53.0 | |
| June 12, 2021, 2 a.m. | 5.7 ppb (6) | 0.3 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | 51.0 ppb (48) | N/A | N/A | 9.3 μg/m3 (39) | 48.0 | |
| June 12, 2021, 1 a.m. | 5.5 ppb (6) | 0.5 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | 57.0 ppb (58) | N/A | N/A | 8.6 μg/m3 (36) | 58.0 | |
| June 12, 2021, midnight | 4.7 ppb (5) | 0.5 ppb (1) | N/A | 4.0 ppb (4) | N/A | N/A | 64.0 ppb (81) | N/A | N/A | 9.2 μg/m3 (39) | 81.0 | |
| June 11, 2021, 11 p.m. | 4.1 ppb (4) | 0.5 ppb (1) | N/A | 4.0 ppb (4) | N/A | N/A | 68.0 ppb (94) | N/A | N/A | 11.2 μg/m3 (47) | 94.0 | |
| June 11, 2021, 10 p.m. | 5.4 ppb (6) | 0.5 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | 75.0 ppb (104) | N/A | N/A | 13.2 μg/m3 (54) | 104.0 | |
| June 11, 2021, 9 p.m. | 7.8 ppb (8) | 0.9 ppb (1) | N/A | 7.0 ppb (7) | N/A | N/A | 71.0 ppb (101) | N/A | N/A | 14.4 μg/m3 (56) | 101.0 | |
| June 11, 2021, 8 p.m. | 12.1 ppb (12) | 1.7 ppb (2) | N/A | 10.0 ppb (10) | N/A | N/A | 65.0 ppb (84) | N/A | N/A | 13.4 μg/m3 (54) | 84.0 | |
| June 11, 2021, 7 p.m. | 17.6 ppb (17) | 3.2 ppb (4) | N/A | 14.0 ppb (14) | N/A | N/A | 56.0 ppb (55) | N/A | N/A | 13.4 μg/m3 (54) | 55.0 | |
| June 11, 2021, 6 p.m. | 27.1 ppb (26) | 6.7 ppb (7) | N/A | 20.0 ppb (19) | N/A | N/A | 43.0 ppb (40) | N/A | N/A | 14.4 μg/m3 (56) | 56.0 | |
| June 11, 2021, 5 p.m. | 21.8 ppb (21) | 6.1 ppb (6) | N/A | 16.0 ppb (16) | N/A | N/A | 37.0 ppb (35) | N/A | N/A | 14.2 μg/m3 (56) | 56.0 | |
| June 11, 2021, 4 p.m. | 19.1 ppb (19) | 5.9 ppb (6) | N/A | 13.0 ppb (13) | N/A | N/A | 32.0 ppb (30) | N/A | N/A | 13.7 μg/m3 (55) | 55.0 | |
| June 11, 2021, 3 p.m. | 23.2 ppb (22) | 8.3 ppb (8) | N/A | 15.0 ppb (15) | N/A | N/A | 24.0 ppb (23) | N/A | N/A | 12.9 μg/m3 (53) | 53.0 | |
| June 11, 2021, 2 p.m. | 21.9 ppb (21) | 7.1 ppb (7) | N/A | 15.0 ppb (15) | N/A | N/A | 18.0 ppb (17) | N/A | N/A | 12.4 μg/m3 (52) | 52.0 | |
| June 11, 2021, 1 p.m. | 24.0 ppb (23) | 5.7 ppb (6) | N/A | 18.0 ppb (17) | N/A | N/A | 11.0 ppb (11) | N/A | N/A | 10.2 μg/m3 (43) | 43.0 | |
| June 11, 2021, noon | 23.1 ppb (22) | 2.3 ppb (3) | N/A | 21.0 ppb (20) | N/A | N/A | 7.0 ppb (7) | N/A | N/A | 11.7 μg/m3 (49) | 49.0 | |
| June 11, 2021, 11 a.m. | 21.3 ppb (21) | 1.2 ppb (2) | N/A | 20.0 ppb (19) | N/A | N/A | 6.0 ppb (6) | N/A | N/A | 12.7 μg/m3 (53) | 53.0 | |
| June 11, 2021, 10 a.m. | 19.4 ppb (19) | 0.9 ppb (1) | N/A | 18.0 ppb (17) | N/A | N/A | 9.0 ppb (9) | N/A | N/A | 10.7 μg/m3 (45) | 45.0 | |
| June 11, 2021, 9 a.m. | 18.9 ppb (18) | 0.6 ppb (1) | N/A | 18.0 ppb (17) | N/A | N/A | 10.0 ppb (10) | N/A | N/A | 10.5 μg/m3 (44) | 44.0 | |
| June 11, 2021, 8 a.m. | 16.9 ppb (16) | 0.4 ppb (1) | N/A | 17.0 ppb (17) | N/A | N/A | 15.0 ppb (14) | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
| June 11, 2021, 7 a.m. | 15.2 ppb (15) | 0.5 ppb (1) | N/A | 15.0 ppb (15) | N/A | N/A | 19.0 ppb (18) | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
| June 11, 2021, 6 a.m. | 12.9 ppb (13) | 0.5 ppb (1) | N/A | 12.0 ppb (12) | N/A | N/A | 21.0 ppb (20) | N/A | N/A | 14.6 μg/m3 (57) | 57.0 | |
| June 11, 2021, 5 a.m. | 13.8 ppb (14) | 0.4 ppb (1) | N/A | 13.0 ppb (13) | N/A | N/A | 22.0 ppb (21) | N/A | N/A | 12.9 μg/m3 (53) | 53.0 |