Ontario (Ballou) CA, US: 34.0309, -117.617403
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| June 3, 2020, 3 p.m. | 87.1 ppb (85) | 45.0 ppb (42) | N/A | 42.0 ppb (39) | N/A | N/A | N/A | N/A | N/A | N/A | 85.0 | |
| June 3, 2020, 2 p.m. | 65.5 ppb (62) | 31.6 ppb (29) | N/A | 34.0 ppb (31) | N/A | N/A | N/A | N/A | N/A | N/A | 62.0 | |
| June 3, 2020, 1 p.m. | 99.0 ppb (98) | 61.9 ppb (58) | N/A | 37.0 ppb (34) | N/A | N/A | N/A | N/A | N/A | N/A | 98.0 | |
| June 3, 2020, noon | 91.4 ppb (90) | 53.1 ppb (49) | N/A | 38.0 ppb (35) | N/A | N/A | N/A | N/A | N/A | N/A | 90.0 | |
| June 3, 2020, 11 a.m. | 56.5 ppb (53) | 16.8 ppb (16) | N/A | 40.0 ppb (37) | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 | |
| June 3, 2020, 10 a.m. | 48.0 ppb (44) | 10.2 ppb (9) | N/A | 38.0 ppb (35) | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 | |
| June 3, 2020, 9 a.m. | 56.3 ppb (52) | 17.6 ppb (16) | N/A | 39.0 ppb (36) | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 | |
| June 3, 2020, 8 a.m. | 37.3 ppb (35) | 10.6 ppb (10) | N/A | 27.0 ppb (25) | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 | |
| June 3, 2020, 7 a.m. | 49.3 ppb (46) | 16.6 ppb (15) | N/A | 33.0 ppb (31) | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 | |
| June 3, 2020, 6 a.m. | 32.2 ppb (30) | 7.1 ppb (7) | N/A | 25.0 ppb (23) | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 | |
| June 3, 2020, 5 a.m. | 44.6 ppb (41) | 13.9 ppb (13) | N/A | 31.0 ppb (29) | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 | |
| June 3, 2020, 4 a.m. | 33.5 ppb (31) | 8.5 ppb (8) | N/A | 25.0 ppb (23) | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 | |
| June 3, 2020, 3 a.m. | 28.2 ppb (26) | 4.2 ppb (4) | N/A | 24.0 ppb (22) | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 | |
| June 3, 2020, 2 a.m. | 31.0 ppb (29) | 6.3 ppb (6) | N/A | 25.0 ppb (23) | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 | |
| June 3, 2020, 1 a.m. | 32.7 ppb (30) | 8.2 ppb (8) | N/A | 25.0 ppb (23) | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 | |
| June 3, 2020, midnight | 34.0 ppb (31) | 8.6 ppb (8) | N/A | 25.0 ppb (23) | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 | |
| June 2, 2020, 11 p.m. | 36.7 ppb (34) | 8.3 ppb (8) | N/A | 28.0 ppb (26) | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 | |
| June 2, 2020, 10 p.m. | 34.8 ppb (32) | 7.4 ppb (7) | N/A | 27.0 ppb (25) | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 | |
| June 2, 2020, 9 p.m. | 41.8 ppb (39) | 9.8 ppb (9) | N/A | 32.0 ppb (30) | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 | |
| June 2, 2020, 8 p.m. | 34.6 ppb (32) | 8.2 ppb (8) | N/A | 26.0 ppb (24) | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 | |
| June 2, 2020, 7 p.m. | 30.6 ppb (28) | 8.0 ppb (7) | N/A | 23.0 ppb (21) | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 | |
| June 2, 2020, 6 p.m. | 54.4 ppb (50) | 19.8 ppb (18) | N/A | 35.0 ppb (32) | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 | |
| June 2, 2020, 5 p.m. | 58.6 ppb (55) | 22.5 ppb (21) | N/A | 36.0 ppb (33) | N/A | N/A | N/A | N/A | N/A | N/A | 55.0 | |
| June 2, 2020, 4 p.m. | 67.0 ppb (64) | 30.5 ppb (28) | N/A | 36.0 ppb (33) | N/A | N/A | N/A | N/A | N/A | N/A | 64.0 | |
| June 2, 2020, 3 p.m. | 101.0 ppb (100) | 60.8 ppb (57) | N/A | 40.0 ppb (37) | N/A | N/A | N/A | N/A | N/A | N/A | 100.0 | |
| June 2, 2020, 2 p.m. | 118.4 ppb (103) | 81.1 ppb (79) | N/A | 37.0 ppb (34) | N/A | N/A | N/A | N/A | N/A | N/A | 103.0 | |
| June 2, 2020, 1 p.m. | 69.1 ppb (66) | 40.2 ppb (37) | N/A | 29.0 ppb (27) | N/A | N/A | N/A | N/A | N/A | N/A | 66.0 | |
| June 2, 2020, noon | 38.1 ppb (35) | 10.9 ppb (10) | N/A | 27.0 ppb (25) | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 | |
| June 2, 2020, 11 a.m. | 84.7 ppb (83) | 54.0 ppb (50) | N/A | 31.0 ppb (29) | N/A | N/A | N/A | N/A | N/A | N/A | 83.0 | |
| June 2, 2020, 10 a.m. | 66.7 ppb (64) | 35.2 ppb (33) | N/A | 32.0 ppb (30) | N/A | N/A | N/A | N/A | N/A | N/A | 64.0 | |
| June 2, 2020, 9 a.m. | 16.6 ppb (15) | 1.3 ppb (1) | N/A | 15.0 ppb (14) | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 | |
| June 2, 2020, 8 a.m. | 14.3 ppb (13) | 0.7 ppb (1) | N/A | 14.0 ppb (13) | N/A | N/A | N/A | N/A | N/A | N/A | 13.0 | |
| June 2, 2020, 7 a.m. | 39.1 ppb (36) | 11.7 ppb (11) | N/A | 27.0 ppb (25) | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 | |
| June 2, 2020, 4 a.m. | 34.4 ppb (32) | 8.4 ppb (8) | N/A | 26.0 ppb (24) | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 | |
| June 2, 2020, 3 a.m. | 38.0 ppb (35) | 11.8 ppb (11) | N/A | 26.0 ppb (24) | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 | |
| June 2, 2020, 2 a.m. | 33.3 ppb (31) | 10.2 ppb (9) | N/A | 23.0 ppb (21) | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 | |
| June 2, 2020, 1 a.m. | 37.0 ppb (34) | 11.2 ppb (10) | N/A | 26.0 ppb (24) | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 | |
| June 2, 2020, midnight | 31.7 ppb (29) | 8.5 ppb (8) | N/A | 23.0 ppb (21) | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 | |
| June 1, 2020, 11 p.m. | 24.3 ppb (23) | 5.6 ppb (5) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 | |
| June 1, 2020, 10 p.m. | 32.2 ppb (30) | 7.3 ppb (7) | N/A | 25.0 ppb (23) | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 | |
| June 1, 2020, 9 p.m. | 37.2 ppb (34) | 7.1 ppb (7) | N/A | 30.0 ppb (28) | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 | |
| June 1, 2020, 8 p.m. | 38.1 ppb (35) | 9.4 ppb (9) | N/A | 29.0 ppb (27) | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 | |
| June 1, 2020, 7 p.m. | 26.0 ppb (24) | 6.4 ppb (6) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 | |
| June 1, 2020, 6 p.m. | 40.1 ppb (37) | 12.3 ppb (11) | N/A | 28.0 ppb (26) | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 | |
| June 1, 2020, 5 p.m. | 30.6 ppb (28) | 10.1 ppb (9) | N/A | 21.0 ppb (19) | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 | |
| June 1, 2020, 4 p.m. | 47.4 ppb (44) | 21.2 ppb (20) | N/A | 26.0 ppb (24) | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 | |
| June 1, 2020, 3 p.m. | 68.9 ppb (66) | 41.4 ppb (38) | N/A | 27.0 ppb (25) | N/A | N/A | N/A | N/A | N/A | N/A | 66.0 | |
| June 1, 2020, 2 p.m. | 82.3 ppb (80) | 57.2 ppb (53) | N/A | 25.0 ppb (23) | N/A | N/A | N/A | N/A | N/A | N/A | 80.0 | |
| June 1, 2020, 1 p.m. | 112.0 ppb (102) | 85.7 ppb (84) | N/A | 26.0 ppb (24) | N/A | N/A | N/A | N/A | N/A | N/A | 102.0 | |
| June 1, 2020, noon | 103.6 ppb (100) | 75.7 ppb (73) | N/A | 28.0 ppb (26) | N/A | N/A | N/A | N/A | N/A | N/A | 100.0 | |
| June 1, 2020, 11 a.m. | 34.0 ppb (31) | 13.1 ppb (12) | N/A | 21.0 ppb (19) | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 | |
| June 1, 2020, 10 a.m. | 15.6 ppb (14) | 0.6 ppb (1) | N/A | 15.0 ppb (14) | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 | |
| June 1, 2020, 9 a.m. | 18.9 ppb (18) | 4.3 ppb (4) | N/A | 15.0 ppb (14) | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 | |
| June 1, 2020, 8 a.m. | 28.2 ppb (26) | 9.9 ppb (9) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 | |
| June 1, 2020, 7 a.m. | 22.4 ppb (21) | 7.1 ppb (7) | N/A | 15.0 ppb (14) | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 | |
| June 1, 2020, 6 a.m. | 25.0 ppb (23) | 9.4 ppb (9) | N/A | 16.0 ppb (15) | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 | |
| June 1, 2020, 5 a.m. | 11.1 ppb (10) | 1.5 ppb (1) | N/A | 10.0 ppb (9) | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 | |
| June 1, 2020, 4 a.m. | 10.8 ppb (10) | 1.2 ppb (1) | N/A | 10.0 ppb (9) | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 | |
| June 1, 2020, 3 a.m. | 16.2 ppb (15) | 4.2 ppb (4) | N/A | 12.0 ppb (11) | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 | |
| June 1, 2020, 2 a.m. | 19.2 ppb (18) | 6.0 ppb (6) | N/A | 13.0 ppb (12) | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 | |
| June 1, 2020, 1 a.m. | 14.3 ppb (13) | 3.8 ppb (4) | N/A | 10.0 ppb (9) | N/A | N/A | N/A | N/A | N/A | N/A | 13.0 | |
| June 1, 2020, midnight | 12.8 ppb (12) | 2.9 ppb (3) | N/A | 10.0 ppb (9) | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 | |
| May 31, 2020, 11 p.m. | 12.6 ppb (12) | 3.1 ppb (3) | N/A | 9.0 ppb (8) | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 | |
| May 31, 2020, 10 p.m. | 8.1 ppb (8) | 1.8 ppb (2) | N/A | 6.0 ppb (6) | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 | |
| May 31, 2020, 9 p.m. | 5.5 ppb (5) | 1.1 ppb (1) | N/A | 4.0 ppb (4) | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 | |
| May 31, 2020, 8 p.m. | 6.4 ppb (6) | 1.7 ppb (2) | N/A | 5.0 ppb (5) | N/A | N/A | N/A | N/A | N/A | N/A | 6.0 | |
| May 31, 2020, 7 p.m. | 11.3 ppb (10) | 3.7 ppb (3) | N/A | 8.0 ppb (7) | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 | |
| May 31, 2020, 6 p.m. | 11.2 ppb (10) | 4.2 ppb (4) | N/A | 7.0 ppb (6) | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 | |
| May 31, 2020, 5 p.m. | 13.4 ppb (12) | 5.9 ppb (5) | N/A | 8.0 ppb (7) | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 | |
| May 31, 2020, 4 p.m. | 18.9 ppb (18) | 9.3 ppb (9) | N/A | 10.0 ppb (9) | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 | |
| May 31, 2020, 3 p.m. | 18.0 ppb (17) | 9.3 ppb (9) | N/A | 9.0 ppb (8) | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 | |
| May 31, 2020, 2 p.m. | 23.8 ppb (22) | 14.7 ppb (14) | N/A | 9.0 ppb (8) | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 | |
| May 31, 2020, 1 p.m. | 27.8 ppb (26) | 16.4 ppb (15) | N/A | 11.0 ppb (10) | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 | |
| May 31, 2020, noon | 35.0 ppb (32) | 20.1 ppb (19) | N/A | 15.0 ppb (14) | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 | |
| May 31, 2020, 11 a.m. | 17.5 ppb (16) | 7.3 ppb (7) | N/A | 10.0 ppb (9) | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 | |
| May 31, 2020, 10 a.m. | 18.0 ppb (17) | 7.0 ppb (6) | N/A | 11.0 ppb (10) | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 | |
| May 31, 2020, 9 a.m. | 14.7 ppb (14) | 4.9 ppb (5) | N/A | 10.0 ppb (9) | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 | |
| May 31, 2020, 8 a.m. | 16.5 ppb (15) | 6.8 ppb (6) | N/A | 10.0 ppb (9) | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 | |
| May 31, 2020, 7 a.m. | 13.4 ppb (12) | 5.0 ppb (5) | N/A | 8.0 ppb (7) | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 | |
| May 31, 2020, 6 a.m. | 13.5 ppb (12) | 5.7 ppb (5) | N/A | 8.0 ppb (7) | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 | |
| May 31, 2020, 5 a.m. | 15.1 ppb (14) | 6.0 ppb (6) | N/A | 9.0 ppb (8) | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 | |
| May 31, 2020, 4 a.m. | 15.9 ppb (15) | 7.3 ppb (7) | N/A | 9.0 ppb (8) | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 | |
| May 31, 2020, 3 a.m. | 12.9 ppb (12) | 4.8 ppb (4) | N/A | 8.0 ppb (7) | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 | |
| May 31, 2020, 2 a.m. | 8.8 ppb (8) | 2.5 ppb (2) | N/A | 6.0 ppb (6) | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 | |
| May 31, 2020, 1 a.m. | 7.2 ppb (7) | 1.9 ppb (2) | N/A | 5.0 ppb (5) | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 | |
| May 31, 2020, midnight | 10.3 ppb (10) | 3.1 ppb (3) | N/A | 7.0 ppb (6) | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 | |
| May 30, 2020, 11 p.m. | 15.0 ppb (14) | 5.3 ppb (5) | N/A | 10.0 ppb (9) | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 | |
| May 30, 2020, 10 p.m. | 14.4 ppb (13) | 4.3 ppb (4) | N/A | 10.0 ppb (9) | N/A | N/A | N/A | N/A | N/A | N/A | 13.0 | |
| May 30, 2020, 9 p.m. | 13.5 ppb (12) | 3.8 ppb (4) | N/A | 10.0 ppb (9) | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 | |
| May 30, 2020, 8 p.m. | 9.4 ppb (9) | 2.6 ppb (2) | N/A | 7.0 ppb (6) | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 | |
| May 30, 2020, 7 p.m. | 13.6 ppb (13) | 4.8 ppb (4) | N/A | 9.0 ppb (8) | N/A | N/A | N/A | N/A | N/A | N/A | 13.0 | |
| May 30, 2020, 6 p.m. | 14.1 ppb (13) | 5.7 ppb (5) | N/A | 8.0 ppb (7) | N/A | N/A | N/A | N/A | N/A | N/A | 13.0 | |
| May 30, 2020, 5 p.m. | 14.3 ppb (13) | 6.0 ppb (6) | N/A | 8.0 ppb (7) | N/A | N/A | N/A | N/A | N/A | N/A | 13.0 | |
| May 30, 2020, 4 p.m. | 12.3 ppb (11) | 5.1 ppb (5) | N/A | 7.0 ppb (6) | N/A | N/A | N/A | N/A | N/A | N/A | 11.0 | |
| May 30, 2020, 3 p.m. | 8.3 ppb (8) | 3.3 ppb (3) | N/A | 5.0 ppb (5) | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 | |
| May 30, 2020, 2 p.m. | 20.9 ppb (19) | 10.5 ppb (10) | N/A | 10.0 ppb (9) | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 | |
| May 30, 2020, 1 p.m. | 30.2 ppb (28) | 14.3 ppb (13) | N/A | 16.0 ppb (15) | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 | |
| May 30, 2020, noon | 27.8 ppb (26) | 12.9 ppb (12) | N/A | 15.0 ppb (14) | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 | |
| May 30, 2020, 11 a.m. | 16.8 ppb (16) | 7.1 ppb (7) | N/A | 10.0 ppb (9) | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 | |
| May 30, 2020, 10 a.m. | 19.5 ppb (18) | 8.0 ppb (7) | N/A | 11.0 ppb (10) | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 | |
| May 30, 2020, 9 a.m. | 21.7 ppb (20) | 10.0 ppb (9) | N/A | 12.0 ppb (11) | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 | |
| May 30, 2020, 8 a.m. | 13.2 ppb (12) | 3.9 ppb (4) | N/A | 9.0 ppb (8) | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 | |
| May 30, 2020, 7 a.m. | 19.0 ppb (18) | 8.5 ppb (8) | N/A | 10.0 ppb (9) | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 | |
| May 30, 2020, 6 a.m. | 18.2 ppb (17) | 8.0 ppb (7) | N/A | 10.0 ppb (9) | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 | |
| May 30, 2020, 5 a.m. | 20.2 ppb (19) | 8.4 ppb (8) | N/A | 12.0 ppb (11) | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 | |
| May 30, 2020, 4 a.m. | 23.7 ppb (22) | 11.3 ppb (10) | N/A | 12.0 ppb (11) | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 | |
| May 30, 2020, 3 a.m. | 17.2 ppb (16) | 6.1 ppb (6) | N/A | 11.0 ppb (10) | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 | |
| May 30, 2020, 2 a.m. | 28.0 ppb (26) | 12.1 ppb (11) | N/A | 16.0 ppb (15) | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 | |
| May 30, 2020, 1 a.m. | 28.1 ppb (26) | 12.0 ppb (11) | N/A | 16.0 ppb (15) | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 | |
| May 30, 2020, midnight | 30.0 ppb (28) | 13.8 ppb (13) | N/A | 16.0 ppb (15) | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 | |
| May 29, 2020, 11 p.m. | 27.4 ppb (25) | 11.7 ppb (11) | N/A | 16.0 ppb (15) | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 | |
| May 29, 2020, 10 p.m. | 33.3 ppb (31) | 14.4 ppb (13) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 | |
| May 29, 2020, 9 p.m. | 33.7 ppb (31) | 14.0 ppb (13) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 | |
| May 29, 2020, 8 p.m. | 28.6 ppb (26) | 12.7 ppb (12) | N/A | 16.0 ppb (15) | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 | |
| May 29, 2020, 7 p.m. | 36.8 ppb (34) | 16.6 ppb (15) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 | |
| May 29, 2020, 6 p.m. | 39.0 ppb (36) | 19.9 ppb (18) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 | |
| May 29, 2020, 5 p.m. | 36.2 ppb (34) | 20.3 ppb (19) | N/A | 16.0 ppb (15) | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 | |
| May 29, 2020, 4 p.m. | 53.2 ppb (49) | 32.6 ppb (30) | N/A | 21.0 ppb (19) | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 | |
| May 29, 2020, 3 p.m. | 57.4 ppb (54) | 35.9 ppb (33) | N/A | 22.0 ppb (20) | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 | |
| May 29, 2020, 2 p.m. | 24.9 ppb (23) | 11.6 ppb (11) | N/A | 13.0 ppb (12) | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 | |
| May 29, 2020, 1 p.m. | 52.3 ppb (48) | 32.9 ppb (30) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 | |
| May 29, 2020, noon | 32.2 ppb (30) | 16.9 ppb (16) | N/A | 15.0 ppb (14) | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 | |
| May 29, 2020, 11 a.m. | 15.3 ppb (14) | 5.8 ppb (5) | N/A | 10.0 ppb (9) | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 | |
| May 29, 2020, 10 a.m. | 11.5 ppb (11) | 2.4 ppb (2) | N/A | 9.0 ppb (8) | N/A | N/A | N/A | N/A | N/A | N/A | 11.0 | |
| May 29, 2020, 9 a.m. | 19.6 ppb (18) | 6.3 ppb (6) | N/A | 13.0 ppb (12) | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 | |
| May 29, 2020, 8 a.m. | 8.1 ppb (8) | 0.3 ppb (0) | N/A | 8.0 ppb (7) | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 | |
| May 29, 2020, 7 a.m. | 15.1 ppb (14) | 4.0 ppb (4) | N/A | 11.0 ppb (10) | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 | |
| May 29, 2020, 6 a.m. | 25.3 ppb (23) | 10.0 ppb (9) | N/A | 15.0 ppb (14) | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 | |
| May 29, 2020, 5 a.m. | 27.3 ppb (25) | 11.7 ppb (11) | N/A | 16.0 ppb (15) | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 | |
| May 29, 2020, 4 a.m. | 24.2 ppb (22) | 10.0 ppb (9) | N/A | 14.0 ppb (13) | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 | |
| May 29, 2020, 3 a.m. | 25.4 ppb (24) | 9.1 ppb (8) | N/A | 16.0 ppb (15) | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 | |
| May 29, 2020, 2 a.m. | 27.1 ppb (25) | 10.3 ppb (10) | N/A | 17.0 ppb (16) | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 | |
| May 29, 2020, 1 a.m. | 24.3 ppb (23) | 8.6 ppb (8) | N/A | 16.0 ppb (15) | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 | |
| May 29, 2020, midnight | 31.3 ppb (29) | 11.7 ppb (11) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 | |
| May 28, 2020, 11 p.m. | 29.1 ppb (27) | 7.6 ppb (7) | N/A | 22.0 ppb (20) | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 | |
| May 28, 2020, 10 p.m. | 30.0 ppb (28) | 7.3 ppb (7) | N/A | 23.0 ppb (21) | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 | |
| May 28, 2020, 9 p.m. | 30.5 ppb (28) | 7.7 ppb (7) | N/A | 23.0 ppb (21) | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 | |
| May 28, 2020, 8 p.m. | 35.3 ppb (33) | 9.7 ppb (9) | N/A | 26.0 ppb (24) | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 | |
| May 28, 2020, 7 p.m. | 22.6 ppb (21) | 5.1 ppb (5) | N/A | 17.0 ppb (16) | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 | |
| May 28, 2020, 6 p.m. | 35.3 ppb (33) | 9.9 ppb (9) | N/A | 25.0 ppb (23) | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 | |
| May 28, 2020, 5 p.m. | 52.2 ppb (48) | 19.7 ppb (18) | N/A | 32.0 ppb (30) | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 | |
| May 28, 2020, 4 p.m. | 33.8 ppb (31) | 12.7 ppb (12) | N/A | 21.0 ppb (19) | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 | |
| May 28, 2020, 3 p.m. | 51.2 ppb (47) | 28.8 ppb (27) | N/A | 22.0 ppb (20) | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 | |
| May 28, 2020, 2 p.m. | 70.7 ppb (68) | 46.4 ppb (43) | N/A | 24.0 ppb (22) | N/A | N/A | N/A | N/A | N/A | N/A | 68.0 | |
| May 28, 2020, 1 p.m. | 76.6 ppb (74) | 52.5 ppb (49) | N/A | 24.0 ppb (22) | N/A | N/A | N/A | N/A | N/A | N/A | 74.0 | |
| May 28, 2020, noon | 54.3 ppb (50) | 31.5 ppb (29) | N/A | 23.0 ppb (21) | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 | |
| May 28, 2020, 11 a.m. | 44.8 ppb (41) | 24.5 ppb (23) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 | |
| May 28, 2020, 10 a.m. | 36.6 ppb (34) | 17.8 ppb (16) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 | |
| May 28, 2020, 9 a.m. | 16.2 ppb (15) | 3.6 ppb (3) | N/A | 13.0 ppb (12) | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 | |
| May 28, 2020, 8 a.m. | 20.7 ppb (19) | 6.3 ppb (6) | N/A | 14.0 ppb (13) | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 | |
| May 28, 2020, 7 a.m. | 21.7 ppb (20) | 6.4 ppb (6) | N/A | 15.0 ppb (14) | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 | |
| May 28, 2020, 6 a.m. | 24.2 ppb (22) | 6.5 ppb (6) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 | |
| May 28, 2020, 5 a.m. | 22.2 ppb (21) | 3.6 ppb (3) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 | |
| May 28, 2020, 4 a.m. | 17.1 ppb (16) | 1.0 ppb (1) | N/A | 16.0 ppb (15) | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 | |
| May 28, 2020, 3 a.m. | 23.0 ppb (21) | 2.6 ppb (2) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 | |
| May 28, 2020, 2 a.m. | 26.3 ppb (24) | 4.8 ppb (4) | N/A | 21.0 ppb (19) | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 | |
| May 28, 2020, 1 a.m. | 30.6 ppb (28) | 7.1 ppb (7) | N/A | 23.0 ppb (21) | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 | |
| May 28, 2020, midnight | 31.9 ppb (30) | 6.8 ppb (6) | N/A | 25.0 ppb (23) | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 | |
| May 27, 2020, 11 p.m. | 30.4 ppb (28) | 6.1 ppb (6) | N/A | 24.0 ppb (22) | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 | |
| May 27, 2020, 10 p.m. | 28.8 ppb (27) | 5.2 ppb (5) | N/A | 24.0 ppb (22) | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 | |
| May 27, 2020, 9 p.m. | 32.1 ppb (30) | 4.7 ppb (4) | N/A | 27.0 ppb (25) | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 | |
| May 27, 2020, 8 p.m. | 24.7 ppb (23) | 3.7 ppb (3) | N/A | 21.0 ppb (19) | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 | |
| May 27, 2020, 7 p.m. | 37.9 ppb (35) | 8.1 ppb (8) | N/A | 30.0 ppb (28) | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 | |
| May 27, 2020, 6 p.m. | 45.1 ppb (42) | 12.1 ppb (11) | N/A | 33.0 ppb (31) | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 | |
| May 27, 2020, 5 p.m. | 56.9 ppb (53) | 18.0 ppb (17) | N/A | 39.0 ppb (36) | N/A | N/A | N/A | N/A | N/A | N/A | 53.0 | |
| May 27, 2020, 4 p.m. | 70.9 ppb (68) | 32.7 ppb (30) | N/A | 38.0 ppb (35) | N/A | N/A | N/A | N/A | N/A | N/A | 68.0 | |
| May 27, 2020, 3 p.m. | 77.6 ppb (75) | 43.6 ppb (40) | N/A | 34.0 ppb (31) | N/A | N/A | N/A | N/A | N/A | N/A | 75.0 | |
| May 27, 2020, 2 p.m. | 88.6 ppb (87) | 56.4 ppb (53) | N/A | 32.0 ppb (30) | N/A | N/A | N/A | N/A | N/A | N/A | 87.0 |