Salt Lake City (Clover Crest Number 2) UT, US: 40.662841, -111.901796
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 29, 2020, 4 a.m. | 24.0 ppb (22) | 5.1 ppb (5) | N/A | 19.0 ppb (18) | N/A | N/A | 22.0 ppb (17) | N/A | N/A | N/A | 22.0 | |
| March 29, 2020, 3 a.m. | 25.2 ppb (23) | 6.6 ppb (6) | N/A | 19.0 ppb (18) | N/A | N/A | 26.0 ppb (20) | N/A | N/A | N/A | 23.0 | |
| March 29, 2020, 2 a.m. | 9.0 ppb (8) | 0.4 ppb (0) | N/A | 9.0 ppb (8) | N/A | N/A | 36.0 ppb (28) | N/A | N/A | N/A | 28.0 | |
| March 29, 2020, 1 a.m. | 13.6 ppb (13) | 3.3 ppb (3) | N/A | 11.0 ppb (10) | N/A | N/A | 39.0 ppb (30) | N/A | N/A | N/A | 30.0 | |
| March 29, 2020, midnight | 5.8 ppb (5) | 1.7 ppb (2) | N/A | 4.0 ppb (4) | N/A | N/A | 45.0 ppb (35) | N/A | N/A | N/A | 35.0 | |
| March 28, 2020, 11 p.m. | 10.5 ppb (10) | 4.7 ppb (4) | N/A | 6.0 ppb (6) | N/A | N/A | 44.0 ppb (34) | N/A | N/A | N/A | 34.0 | |
| March 28, 2020, 10 p.m. | 10.7 ppb (10) | 4.7 ppb (4) | N/A | 6.0 ppb (6) | N/A | N/A | 43.0 ppb (33) | N/A | N/A | N/A | 33.0 | |
| March 28, 2020, 9 p.m. | 12.7 ppb (12) | 6.1 ppb (6) | N/A | 7.0 ppb (6) | N/A | N/A | 43.0 ppb (33) | N/A | N/A | N/A | 33.0 | |
| March 28, 2020, 8 p.m. | 10.7 ppb (10) | 4.3 ppb (4) | N/A | 7.0 ppb (6) | N/A | N/A | 43.0 ppb (33) | N/A | N/A | N/A | 33.0 | |
| March 28, 2020, 7 p.m. | 17.1 ppb (16) | 8.3 ppb (8) | N/A | 9.0 ppb (8) | N/A | N/A | 41.0 ppb (32) | N/A | N/A | N/A | 32.0 | |
| March 28, 2020, 6 p.m. | 21.3 ppb (20) | 11.3 ppb (10) | N/A | 10.0 ppb (9) | N/A | N/A | 38.0 ppb (29) | N/A | N/A | N/A | 29.0 | |
| March 28, 2020, 5 p.m. | 6.2 ppb (6) | 1.7 ppb (2) | N/A | 5.0 ppb (5) | N/A | N/A | 42.0 ppb (32) | N/A | N/A | N/A | 32.0 | |
| March 28, 2020, 4 p.m. | 14.2 ppb (13) | 6.2 ppb (6) | N/A | 8.0 ppb (7) | N/A | N/A | 37.0 ppb (28) | N/A | N/A | N/A | 28.0 | |
| March 28, 2020, 3 p.m. | 14.4 ppb (13) | 5.7 ppb (5) | N/A | 9.0 ppb (8) | N/A | N/A | 35.0 ppb (27) | N/A | N/A | N/A | 27.0 | |
| March 28, 2020, 2 p.m. | 8.9 ppb (8) | 1.8 ppb (2) | N/A | 8.0 ppb (7) | N/A | N/A | 35.0 ppb (27) | N/A | N/A | N/A | 27.0 | |
| March 28, 2020, 1 p.m. | 7.2 ppb (7) | 1.2 ppb (1) | N/A | 6.0 ppb (6) | N/A | N/A | 36.0 ppb (28) | N/A | N/A | N/A | 28.0 | |
| March 28, 2020, noon | 8.3 ppb (8) | 1.5 ppb (1) | N/A | 7.0 ppb (6) | N/A | N/A | 35.0 ppb (27) | N/A | N/A | N/A | 27.0 | |
| March 28, 2020, 11 a.m. | 9.2 ppb (9) | 0.7 ppb (1) | N/A | 9.0 ppb (8) | N/A | N/A | 32.0 ppb (25) | N/A | N/A | N/A | 25.0 | |
| March 28, 2020, 10 a.m. | 10.3 ppb (10) | 1.3 ppb (1) | N/A | 10.0 ppb (9) | N/A | N/A | 32.0 ppb (25) | N/A | N/A | N/A | 25.0 | |
| March 28, 2020, 9 a.m. | 9.4 ppb (9) | 2.3 ppb (2) | N/A | 8.0 ppb (7) | N/A | N/A | 35.0 ppb (27) | N/A | N/A | N/A | 27.0 | |
| March 28, 2020, 8 a.m. | 7.4 ppb (7) | 1.5 ppb (1) | N/A | 6.0 ppb (6) | N/A | N/A | 38.0 ppb (29) | N/A | N/A | N/A | 29.0 | |
| March 28, 2020, 7 a.m. | 6.0 ppb (6) | 1.3 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | 40.0 ppb (31) | N/A | N/A | N/A | 31.0 | |
| March 28, 2020, 6 a.m. | 5.8 ppb (5) | 1.1 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | 41.0 ppb (32) | N/A | N/A | N/A | 32.0 | |
| March 28, 2020, 5 a.m. | 4.2 ppb (4) | 0.7 ppb (1) | N/A | 4.0 ppb (4) | N/A | N/A | 44.0 ppb (34) | N/A | N/A | N/A | 34.0 | |
| March 28, 2020, 4 a.m. | 12.5 ppb (12) | 4.0 ppb (4) | N/A | 9.0 ppb (8) | N/A | N/A | 37.0 ppb (28) | N/A | N/A | N/A | 28.0 | |
| March 28, 2020, 3 a.m. | 9.2 ppb (9) | 3.4 ppb (3) | N/A | 6.0 ppb (6) | N/A | N/A | 41.0 ppb (32) | N/A | N/A | N/A | 32.0 | |
| March 28, 2020, 2 a.m. | 13.8 ppb (13) | 4.1 ppb (4) | N/A | 10.0 ppb (9) | N/A | N/A | 40.0 ppb (31) | N/A | N/A | N/A | 31.0 | |
| March 28, 2020, 1 a.m. | 2.6 ppb (2) | 0.5 ppb (0) | N/A | 2.0 ppb (2) | N/A | N/A | 45.0 ppb (35) | N/A | N/A | N/A | 35.0 | |
| March 28, 2020, midnight | 2.1 ppb (2) | 0.8 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | 46.0 ppb (35) | N/A | N/A | N/A | 35.0 | |
| March 27, 2020, 11 p.m. | 2.1 ppb (2) | 0.7 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | 46.0 ppb (35) | N/A | N/A | N/A | 35.0 | |
| March 27, 2020, 10 p.m. | 2.1 ppb (2) | 0.7 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | 46.0 ppb (35) | N/A | N/A | N/A | 35.0 | |
| March 27, 2020, 9 p.m. | 2.4 ppb (2) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | 46.0 ppb (35) | N/A | N/A | N/A | 35.0 | |
| March 27, 2020, 8 p.m. | 2.0 ppb (2) | 0.8 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | 46.0 ppb (35) | N/A | N/A | N/A | 35.0 | |
| March 27, 2020, 7 p.m. | 2.6 ppb (2) | 0.9 ppb (1) | N/A | 2.0 ppb (2) | N/A | N/A | 46.0 ppb (35) | N/A | N/A | N/A | 35.0 | |
| March 27, 2020, 6 p.m. | 3.8 ppb (4) | 1.3 ppb (1) | N/A | 3.0 ppb (3) | N/A | N/A | 44.0 ppb (34) | N/A | N/A | N/A | 34.0 | |
| March 27, 2020, 5 p.m. | 8.2 ppb (8) | 3.5 ppb (3) | N/A | 5.0 ppb (5) | N/A | N/A | 40.0 ppb (31) | N/A | N/A | N/A | 31.0 | |
| March 27, 2020, 4 p.m. | 29.2 ppb (27) | 14.1 ppb (13) | N/A | 16.0 ppb (15) | N/A | N/A | 30.0 ppb (23) | N/A | N/A | N/A | 27.0 | |
| March 27, 2020, 3 p.m. | 55.1 ppb (51) | 30.9 ppb (29) | N/A | 25.0 ppb (23) | N/A | N/A | 18.0 ppb (14) | 0.0 ppb (0) | N/A | N/A | 51.0 | |
| March 27, 2020, 2 p.m. | 98.9 ppb (98) | 63.9 ppb (61) | N/A | 36.0 ppb (33) | N/A | N/A | 7.0 ppb (5) | 0.2 ppb (2) | N/A | N/A | 98.0 | |
| March 27, 2020, 1 p.m. | 47.5 ppb (44) | 19.5 ppb (18) | N/A | 29.0 ppb (27) | N/A | N/A | 10.0 ppb (8) | 0.0 ppb (0) | N/A | N/A | 44.0 | |
| March 27, 2020, noon | 22.0 ppb (20) | 2.2 ppb (2) | N/A | 20.0 ppb (19) | N/A | N/A | 17.0 ppb (13) | N/A | N/A | N/A | 20.0 | |
| March 27, 2020, 11 a.m. | 24.9 ppb (23) | 3.7 ppb (3) | N/A | 22.0 ppb (20) | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 | |
| March 27, 2020, 10 a.m. | 30.7 ppb (28) | 4.0 ppb (4) | N/A | 27.0 ppb (25) | N/A | N/A | 11.0 ppb (8) | N/A | N/A | N/A | 28.0 | |
| March 27, 2020, 9 a.m. | 25.6 ppb (24) | 2.7 ppb (3) | N/A | 23.0 ppb (21) | N/A | N/A | 16.0 ppb (12) | N/A | N/A | N/A | 24.0 | |
| March 27, 2020, 8 a.m. | 11.3 ppb (10) | 2.6 ppb (2) | N/A | 9.0 ppb (8) | N/A | N/A | 33.0 ppb (25) | N/A | N/A | N/A | 25.0 | |
| March 27, 2020, 7 a.m. | 11.9 ppb (11) | 2.0 ppb (2) | N/A | 10.0 ppb (9) | N/A | N/A | 32.0 ppb (25) | N/A | N/A | N/A | 25.0 | |
| March 27, 2020, 6 a.m. | 13.8 ppb (13) | 2.3 ppb (2) | N/A | 12.0 ppb (11) | N/A | N/A | 30.0 ppb (23) | N/A | N/A | N/A | 23.0 | |
| March 27, 2020, 5 a.m. | 12.3 ppb (11) | 3.6 ppb (3) | N/A | 9.0 ppb (8) | N/A | N/A | 34.0 ppb (26) | N/A | N/A | N/A | 26.0 | |
| March 27, 2020, 4 a.m. | 16.2 ppb (15) | 4.9 ppb (5) | N/A | 12.0 ppb (11) | N/A | N/A | 33.0 ppb (25) | N/A | N/A | N/A | 25.0 | |
| March 27, 2020, 3 a.m. | 18.1 ppb (17) | 6.0 ppb (6) | N/A | 13.0 ppb (12) | N/A | N/A | 32.0 ppb (25) | N/A | N/A | N/A | 25.0 | |
| March 27, 2020, 2 a.m. | 7.0 ppb (6) | 0.7 ppb (1) | N/A | 7.0 ppb (6) | N/A | N/A | 38.0 ppb (29) | N/A | N/A | N/A | 29.0 | |
| March 27, 2020, 1 a.m. | 14.9 ppb (14) | 5.6 ppb (5) | N/A | 10.0 ppb (9) | N/A | N/A | 36.0 ppb (28) | N/A | N/A | N/A | 28.0 | |
| March 27, 2020, midnight | 25.3 ppb (23) | 12.0 ppb (11) | N/A | 14.0 ppb (13) | N/A | N/A | 34.0 ppb (26) | N/A | N/A | N/A | 26.0 | |
| March 26, 2020, 11 p.m. | 25.6 ppb (24) | 13.9 ppb (13) | N/A | 12.0 ppb (11) | N/A | N/A | 35.0 ppb (27) | 0.0 ppb (0) | N/A | N/A | 27.0 | |
| March 26, 2020, 10 p.m. | 15.7 ppb (15) | 7.6 ppb (7) | N/A | 8.0 ppb (7) | N/A | N/A | 39.0 ppb (30) | N/A | N/A | N/A | 30.0 | |
| March 26, 2020, 9 p.m. | 20.8 ppb (19) | 10.6 ppb (10) | N/A | 11.0 ppb (10) | N/A | N/A | 37.0 ppb (28) | N/A | N/A | N/A | 28.0 | |
| March 26, 2020, 8 p.m. | 3.5 ppb (3) | 1.2 ppb (1) | N/A | 3.0 ppb (3) | N/A | N/A | 44.0 ppb (34) | N/A | N/A | N/A | 34.0 | |
| March 26, 2020, 7 p.m. | 3.4 ppb (3) | 1.0 ppb (1) | N/A | 3.0 ppb (3) | N/A | N/A | 45.0 ppb (35) | N/A | N/A | N/A | 35.0 | |
| March 26, 2020, 6 p.m. | 7.3 ppb (7) | 2.5 ppb (2) | N/A | 5.0 ppb (5) | N/A | N/A | 49.0 ppb (38) | N/A | N/A | N/A | 38.0 | |
| March 26, 2020, 5 p.m. | 20.7 ppb (19) | 8.4 ppb (8) | N/A | 13.0 ppb (12) | N/A | N/A | 43.0 ppb (33) | N/A | N/A | N/A | 33.0 | |
| March 26, 2020, 4 p.m. | 14.4 ppb (13) | 4.6 ppb (4) | N/A | 10.0 ppb (9) | N/A | N/A | 44.0 ppb (34) | N/A | N/A | N/A | 34.0 | |
| March 26, 2020, 3 p.m. | 7.9 ppb (7) | 1.8 ppb (2) | N/A | 6.0 ppb (6) | N/A | N/A | 47.0 ppb (36) | N/A | N/A | N/A | 36.0 | |
| March 26, 2020, 2 p.m. | 10.0 ppb (9) | 1.5 ppb (1) | N/A | 9.0 ppb (8) | N/A | N/A | 44.0 ppb (34) | N/A | N/A | N/A | 34.0 | |
| March 26, 2020, 1 p.m. | 7.9 ppb (7) | 0.6 ppb (1) | N/A | 8.0 ppb (7) | N/A | N/A | 40.0 ppb (31) | N/A | N/A | N/A | 31.0 | |
| March 26, 2020, noon | 8.3 ppb (8) | 0.5 ppb (0) | N/A | 8.0 ppb (7) | N/A | N/A | 37.0 ppb (28) | N/A | N/A | N/A | 28.0 | |
| March 26, 2020, 11 a.m. | 4.9 ppb (5) | 0.5 ppb (0) | N/A | 5.0 ppb (5) | N/A | N/A | 41.0 ppb (32) | N/A | N/A | N/A | 32.0 | |
| March 26, 2020, 10 a.m. | 4.3 ppb (4) | 0.4 ppb (0) | N/A | 4.0 ppb (4) | N/A | N/A | 41.0 ppb (32) | N/A | N/A | N/A | 32.0 | |
| March 26, 2020, 9 a.m. | 4.1 ppb (4) | 0.4 ppb (0) | N/A | 4.0 ppb (4) | N/A | N/A | 42.0 ppb (32) | N/A | N/A | N/A | 32.0 | |
| March 26, 2020, 8 a.m. | 3.7 ppb (3) | 0.5 ppb (0) | N/A | 4.0 ppb (4) | N/A | N/A | 41.0 ppb (32) | N/A | N/A | N/A | 32.0 | |
| March 26, 2020, 7 a.m. | 4.2 ppb (4) | 0.3 ppb (0) | N/A | 4.0 ppb (4) | N/A | N/A | 39.0 ppb (30) | N/A | N/A | N/A | 30.0 | |
| March 26, 2020, 6 a.m. | 5.7 ppb (5) | 0.5 ppb (0) | N/A | 6.0 ppb (6) | N/A | N/A | 39.0 ppb (30) | N/A | N/A | N/A | 30.0 | |
| March 26, 2020, 5 a.m. | 7.6 ppb (7) | 0.5 ppb (0) | N/A | 8.0 ppb (7) | N/A | N/A | 37.0 ppb (28) | N/A | N/A | N/A | 28.0 | |
| March 26, 2020, 4 a.m. | 6.8 ppb (6) | 0.4 ppb (0) | N/A | 7.0 ppb (6) | N/A | N/A | 39.0 ppb (30) | N/A | N/A | N/A | 30.0 | |
| March 26, 2020, 3 a.m. | 5.3 ppb (5) | 0.5 ppb (0) | N/A | 5.0 ppb (5) | N/A | N/A | 41.0 ppb (32) | N/A | N/A | N/A | 32.0 | |
| March 26, 2020, 2 a.m. | 3.9 ppb (4) | 0.7 ppb (1) | N/A | 4.0 ppb (4) | N/A | N/A | 44.0 ppb (34) | N/A | N/A | N/A | 34.0 | |
| March 26, 2020, 1 a.m. | 5.1 ppb (5) | 0.5 ppb (0) | N/A | 5.0 ppb (5) | N/A | N/A | 43.0 ppb (33) | N/A | N/A | N/A | 33.0 | |
| March 26, 2020, midnight | 4.1 ppb (4) | 0.8 ppb (1) | N/A | 4.0 ppb (4) | N/A | N/A | 46.0 ppb (35) | N/A | N/A | N/A | 35.0 | |
| March 25, 2020, 11 p.m. | 7.5 ppb (7) | 2.2 ppb (2) | N/A | 6.0 ppb (6) | N/A | N/A | 46.0 ppb (35) | N/A | N/A | N/A | 35.0 | |
| March 25, 2020, 10 p.m. | 6.9 ppb (6) | 1.9 ppb (2) | N/A | 5.0 ppb (5) | N/A | N/A | 46.0 ppb (35) | N/A | N/A | N/A | 35.0 | |
| March 25, 2020, 9 p.m. | 17.8 ppb (16) | 7.8 ppb (7) | N/A | 10.0 ppb (9) | N/A | N/A | 41.0 ppb (32) | N/A | N/A | N/A | 32.0 | |
| March 25, 2020, 8 p.m. | 25.2 ppb (23) | 14.6 ppb (14) | N/A | 11.0 ppb (10) | N/A | N/A | 40.0 ppb (31) | N/A | N/A | N/A | 31.0 | |
| March 25, 2020, 7 p.m. | 27.9 ppb (26) | 14.7 ppb (14) | N/A | 14.0 ppb (13) | N/A | N/A | 37.0 ppb (28) | N/A | N/A | N/A | 28.0 | |
| March 25, 2020, 6 p.m. | 34.6 ppb (32) | 17.2 ppb (16) | N/A | 18.0 ppb (17) | N/A | N/A | 33.0 ppb (25) | N/A | N/A | N/A | 32.0 | |
| March 25, 2020, 5 p.m. | 32.7 ppb (30) | 16.5 ppb (15) | N/A | 17.0 ppb (16) | N/A | N/A | 33.0 ppb (25) | N/A | N/A | N/A | 30.0 | |
| March 25, 2020, 4 p.m. | 27.0 ppb (25) | 11.8 ppb (11) | N/A | 16.0 ppb (15) | N/A | N/A | 34.0 ppb (26) | N/A | N/A | N/A | 26.0 | |
| March 25, 2020, 3 p.m. | 18.3 ppb (17) | 3.3 ppb (3) | N/A | 15.0 ppb (14) | N/A | N/A | 32.0 ppb (25) | N/A | N/A | N/A | 25.0 | |
| March 25, 2020, 2 p.m. | 28.0 ppb (26) | 6.3 ppb (6) | N/A | 22.0 ppb (20) | N/A | N/A | 25.0 ppb (19) | N/A | N/A | N/A | 26.0 | |
| March 25, 2020, 1 p.m. | 26.9 ppb (25) | 5.9 ppb (5) | N/A | 22.0 ppb (20) | N/A | N/A | 26.0 ppb (20) | N/A | N/A | N/A | 25.0 | |
| March 25, 2020, noon | 24.2 ppb (22) | 10.7 ppb (10) | N/A | 14.0 ppb (13) | N/A | N/A | 37.0 ppb (28) | N/A | N/A | N/A | 28.0 | |
| March 25, 2020, 11 a.m. | 15.6 ppb (14) | 5.1 ppb (5) | N/A | 11.0 ppb (10) | N/A | N/A | 36.0 ppb (28) | N/A | N/A | N/A | 28.0 | |
| March 25, 2020, 10 a.m. | 19.2 ppb (18) | 3.7 ppb (3) | N/A | 16.0 ppb (15) | N/A | N/A | 30.0 ppb (23) | N/A | N/A | N/A | 23.0 | |
| March 25, 2020, 9 a.m. | 7.8 ppb (7) | 0.8 ppb (1) | N/A | 7.0 ppb (6) | N/A | N/A | 38.0 ppb (29) | N/A | N/A | N/A | 29.0 | |
| March 25, 2020, 8 a.m. | 7.9 ppb (7) | 1.0 ppb (1) | N/A | 7.0 ppb (6) | N/A | N/A | 39.0 ppb (30) | N/A | N/A | N/A | 30.0 | |
| March 25, 2020, 7 a.m. | 2.2 ppb (2) | 0.4 ppb (0) | N/A | 2.0 ppb (2) | N/A | N/A | 41.0 ppb (32) | N/A | N/A | N/A | 32.0 | |
| March 25, 2020, 6 a.m. | 4.4 ppb (4) | 0.3 ppb (0) | N/A | 4.0 ppb (4) | N/A | N/A | 39.0 ppb (30) | N/A | N/A | N/A | 30.0 | |
| March 25, 2020, 5 a.m. | 4.7 ppb (4) | 0.5 ppb (0) | N/A | 5.0 ppb (5) | N/A | N/A | 38.0 ppb (29) | N/A | N/A | N/A | 29.0 | |
| March 25, 2020, 4 a.m. | 5.7 ppb (5) | 0.4 ppb (0) | N/A | 6.0 ppb (6) | N/A | N/A | 39.0 ppb (30) | N/A | N/A | N/A | 30.0 | |
| March 25, 2020, 3 a.m. | 8.0 ppb (7) | 0.6 ppb (1) | N/A | 8.0 ppb (7) | N/A | N/A | 38.0 ppb (29) | N/A | N/A | N/A | 29.0 | |
| March 25, 2020, 2 a.m. | 4.5 ppb (4) | 0.6 ppb (1) | N/A | 4.0 ppb (4) | N/A | N/A | 42.0 ppb (32) | N/A | N/A | N/A | 32.0 | |
| March 25, 2020, 1 a.m. | 4.6 ppb (4) | 0.6 ppb (1) | N/A | 4.0 ppb (4) | N/A | N/A | 43.0 ppb (33) | N/A | N/A | N/A | 33.0 | |
| March 25, 2020, midnight | 7.6 ppb (7) | 2.4 ppb (2) | N/A | 6.0 ppb (6) | N/A | N/A | 45.0 ppb (35) | N/A | N/A | N/A | 35.0 | |
| March 24, 2020, 11 p.m. | 10.0 ppb (9) | 5.1 ppb (5) | N/A | 5.0 ppb (5) | N/A | N/A | 45.0 ppb (35) | N/A | N/A | N/A | 35.0 | |
| March 24, 2020, 10 p.m. | 4.5 ppb (4) | 1.1 ppb (1) | N/A | 4.0 ppb (4) | N/A | N/A | 45.0 ppb (35) | N/A | N/A | N/A | 35.0 | |
| March 24, 2020, 9 p.m. | 10.3 ppb (10) | 3.8 ppb (4) | N/A | 7.0 ppb (6) | N/A | N/A | 42.0 ppb (32) | N/A | N/A | N/A | 32.0 | |
| March 24, 2020, 8 p.m. | 18.8 ppb (17) | 9.5 ppb (9) | N/A | 10.0 ppb (9) | N/A | N/A | 39.0 ppb (30) | N/A | N/A | N/A | 30.0 | |
| March 24, 2020, 7 p.m. | 18.0 ppb (17) | 10.0 ppb (9) | N/A | 8.0 ppb (7) | N/A | N/A | 39.0 ppb (30) | N/A | N/A | N/A | 30.0 | |
| March 24, 2020, 6 p.m. | 12.5 ppb (12) | 6.1 ppb (6) | N/A | 7.0 ppb (6) | N/A | N/A | 39.0 ppb (30) | N/A | N/A | N/A | 30.0 | |
| March 24, 2020, 5 p.m. | 17.7 ppb (16) | 8.0 ppb (7) | N/A | 10.0 ppb (9) | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 | |
| March 24, 2020, 4 p.m. | 22.9 ppb (21) | 11.4 ppb (11) | N/A | 12.0 ppb (11) | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 | |
| March 24, 2020, 3 p.m. | 14.8 ppb (14) | 5.4 ppb (5) | N/A | 10.0 ppb (9) | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 | |
| March 24, 2020, 2 p.m. | 10.3 ppb (10) | 2.6 ppb (2) | N/A | 8.0 ppb (7) | N/A | N/A | 33.0 ppb (25) | N/A | N/A | N/A | 25.0 | |
| March 24, 2020, 1 p.m. | 9.7 ppb (9) | 1.6 ppb (1) | N/A | 9.0 ppb (8) | N/A | N/A | 33.0 ppb (25) | N/A | N/A | N/A | 25.0 | |
| March 24, 2020, noon | 4.4 ppb (4) | 0.9 ppb (1) | N/A | 4.0 ppb (4) | N/A | N/A | 37.0 ppb (28) | N/A | N/A | N/A | 28.0 | |
| March 24, 2020, 11 a.m. | 4.6 ppb (4) | 0.5 ppb (0) | N/A | 4.0 ppb (4) | N/A | N/A | 37.0 ppb (28) | N/A | N/A | N/A | 28.0 | |
| March 24, 2020, 10 a.m. | 3.0 ppb (3) | 0.5 ppb (0) | N/A | 3.0 ppb (3) | N/A | N/A | 39.0 ppb (30) | N/A | N/A | N/A | 30.0 | |
| March 24, 2020, 9 a.m. | 3.8 ppb (4) | 0.6 ppb (1) | N/A | 4.0 ppb (4) | N/A | N/A | 40.0 ppb (31) | N/A | N/A | N/A | 31.0 | |
| March 24, 2020, 8 a.m. | 4.3 ppb (4) | 0.6 ppb (1) | N/A | 4.0 ppb (4) | N/A | N/A | 38.0 ppb (29) | N/A | N/A | N/A | 29.0 | |
| March 24, 2020, 7 a.m. | 4.6 ppb (4) | 1.5 ppb (1) | N/A | 4.0 ppb (4) | N/A | N/A | 42.0 ppb (32) | N/A | N/A | N/A | 32.0 | |
| March 24, 2020, 6 a.m. | 3.7 ppb (3) | 0.5 ppb (0) | N/A | 4.0 ppb (4) | N/A | N/A | 39.0 ppb (30) | N/A | N/A | N/A | 30.0 | |
| March 24, 2020, 5 a.m. | 5.1 ppb (5) | 0.6 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | 39.0 ppb (30) | N/A | N/A | N/A | 30.0 | |
| March 24, 2020, 4 a.m. | 6.1 ppb (6) | 0.9 ppb (1) | N/A | 6.0 ppb (6) | N/A | N/A | 40.0 ppb (31) | N/A | N/A | N/A | 31.0 | |
| March 24, 2020, 3 a.m. | 8.2 ppb (8) | 1.6 ppb (1) | N/A | 7.0 ppb (6) | N/A | N/A | 40.0 ppb (31) | N/A | N/A | N/A | 31.0 | |
| March 24, 2020, 2 a.m. | 10.8 ppb (10) | 2.1 ppb (2) | N/A | 9.0 ppb (8) | N/A | N/A | 39.0 ppb (30) | N/A | N/A | N/A | 30.0 | |
| March 24, 2020, 1 a.m. | 13.9 ppb (13) | 3.4 ppb (3) | N/A | 11.0 ppb (10) | N/A | N/A | 38.0 ppb (29) | N/A | N/A | N/A | 29.0 | |
| March 24, 2020, midnight | 25.0 ppb (23) | 11.2 ppb (10) | N/A | 14.0 ppb (13) | N/A | N/A | 36.0 ppb (28) | N/A | N/A | N/A | 28.0 | |
| March 23, 2020, 11 p.m. | 23.4 ppb (22) | 12.4 ppb (11) | N/A | 11.0 ppb (10) | N/A | N/A | 38.0 ppb (29) | N/A | N/A | N/A | 29.0 | |
| March 23, 2020, 10 p.m. | 21.8 ppb (20) | 11.1 ppb (10) | N/A | 11.0 ppb (10) | N/A | N/A | 38.0 ppb (29) | N/A | N/A | N/A | 29.0 | |
| March 23, 2020, 9 p.m. | 25.0 ppb (23) | 13.1 ppb (12) | N/A | 12.0 ppb (11) | N/A | N/A | 39.0 ppb (30) | N/A | N/A | N/A | 30.0 | |
| March 23, 2020, 8 p.m. | 21.2 ppb (20) | 12.6 ppb (12) | N/A | 9.0 ppb (8) | N/A | N/A | 40.0 ppb (31) | N/A | N/A | N/A | 31.0 | |
| March 23, 2020, 7 p.m. | 4.6 ppb (4) | 1.6 ppb (1) | N/A | 3.0 ppb (3) | N/A | N/A | 46.0 ppb (35) | N/A | N/A | N/A | 35.0 | |
| March 23, 2020, 6 p.m. | 12.9 ppb (12) | 6.6 ppb (6) | N/A | 7.0 ppb (6) | N/A | N/A | 43.0 ppb (33) | N/A | N/A | N/A | 33.0 | |
| March 23, 2020, 5 p.m. | 18.8 ppb (17) | 10.0 ppb (9) | N/A | 9.0 ppb (8) | N/A | N/A | 39.0 ppb (30) | N/A | N/A | N/A | 30.0 | |
| March 23, 2020, 4 p.m. | 12.4 ppb (11) | 5.6 ppb (5) | N/A | 7.0 ppb (6) | N/A | N/A | 38.0 ppb (29) | N/A | N/A | N/A | 29.0 | |
| March 23, 2020, 3 p.m. | 14.7 ppb (14) | 4.9 ppb (5) | N/A | 10.0 ppb (9) | N/A | N/A | 32.0 ppb (25) | N/A | N/A | N/A | 25.0 | |
| March 23, 2020, 2 p.m. | 35.9 ppb (33) | 15.4 ppb (14) | N/A | 21.0 ppb (19) | N/A | N/A | 22.0 ppb (17) | N/A | N/A | N/A | 33.0 | |
| March 23, 2020, 1 p.m. | 10.8 ppb (10) | 1.1 ppb (1) | N/A | 10.0 ppb (9) | N/A | N/A | 31.0 ppb (24) | N/A | N/A | N/A | 24.0 | |
| March 23, 2020, noon | 18.5 ppb (17) | 4.8 ppb (4) | N/A | 14.0 ppb (13) | N/A | N/A | 30.0 ppb (23) | N/A | N/A | N/A | 23.0 | |
| March 23, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 13.0 ppb (10) | N/A | N/A | N/A | 10.0 | |
| March 23, 2020, 10 a.m. | 33.1 ppb (31) | 6.2 ppb (6) | N/A | 27.0 ppb (25) | N/A | N/A | 10.0 ppb (8) | N/A | N/A | N/A | 31.0 | |
| March 23, 2020, 9 a.m. | 35.5 ppb (33) | 6.5 ppb (6) | N/A | 29.0 ppb (27) | N/A | N/A | 8.0 ppb (6) | N/A | N/A | N/A | 33.0 | |
| March 23, 2020, 8 a.m. | 33.8 ppb (31) | 4.9 ppb (5) | N/A | 29.0 ppb (27) | N/A | N/A | 7.0 ppb (5) | N/A | N/A | N/A | 31.0 | |
| March 23, 2020, 7 a.m. | 27.5 ppb (25) | 2.0 ppb (2) | N/A | 26.0 ppb (24) | N/A | N/A | 9.0 ppb (7) | N/A | N/A | N/A | 25.0 | |
| March 23, 2020, 6 a.m. | 42.9 ppb (40) | 10.2 ppb (9) | N/A | 33.0 ppb (31) | N/A | N/A | 5.0 ppb (4) | 0.0 ppb (0) | N/A | N/A | 40.0 | |
| March 23, 2020, 5 a.m. | 38.5 ppb (36) | 7.1 ppb (7) | N/A | 32.0 ppb (30) | N/A | N/A | 8.0 ppb (6) | 0.0 ppb (0) | N/A | N/A | 36.0 | |
| March 23, 2020, 4 a.m. | 22.7 ppb (21) | 5.6 ppb (5) | N/A | 18.0 ppb (17) | N/A | N/A | 25.0 ppb (19) | N/A | N/A | N/A | 21.0 | |
| March 23, 2020, 3 a.m. | 18.9 ppb (18) | 5.2 ppb (5) | N/A | 14.0 ppb (13) | N/A | N/A | 29.0 ppb (22) | N/A | N/A | N/A | 22.0 | |
| March 23, 2020, 2 a.m. | 13.6 ppb (13) | 1.4 ppb (1) | N/A | 13.0 ppb (12) | N/A | N/A | 31.0 ppb (24) | N/A | N/A | N/A | 24.0 | |
| March 23, 2020, 1 a.m. | 5.7 ppb (5) | 0.9 ppb (1) | N/A | 5.0 ppb (5) | N/A | N/A | 42.0 ppb (32) | N/A | N/A | N/A | 32.0 | |
| March 23, 2020, midnight | 8.6 ppb (8) | 3.4 ppb (3) | N/A | 6.0 ppb (6) | N/A | N/A | 43.0 ppb (33) | N/A | N/A | N/A | 33.0 | |
| March 22, 2020, 11 p.m. | 5.7 ppb (5) | 2.6 ppb (2) | N/A | 4.0 ppb (4) | N/A | N/A | 47.0 ppb (36) | N/A | N/A | N/A | 36.0 | |
| March 22, 2020, 10 p.m. | 7.9 ppb (7) | 3.9 ppb (4) | N/A | 4.0 ppb (4) | N/A | N/A | 46.0 ppb (35) | N/A | N/A | N/A | 35.0 | |
| March 22, 2020, 9 p.m. | 5.7 ppb (5) | 2.0 ppb (2) | N/A | 4.0 ppb (4) | N/A | N/A | 47.0 ppb (36) | N/A | N/A | N/A | 36.0 | |
| March 22, 2020, 8 p.m. | 4.3 ppb (4) | 1.6 ppb (1) | N/A | 3.0 ppb (3) | N/A | N/A | 46.0 ppb (35) | N/A | N/A | N/A | 35.0 | |
| March 22, 2020, 7 p.m. | 4.0 ppb (4) | 1.2 ppb (1) | N/A | 3.0 ppb (3) | N/A | N/A | 45.0 ppb (35) | N/A | N/A | N/A | 35.0 | |
| March 22, 2020, 6 p.m. | 10.0 ppb (9) | 4.0 ppb (4) | N/A | 6.0 ppb (6) | N/A | N/A | 42.0 ppb (32) | N/A | N/A | N/A | 32.0 | |
| March 22, 2020, 5 p.m. | 15.1 ppb (14) | 6.8 ppb (6) | N/A | 9.0 ppb (8) | N/A | N/A | 38.0 ppb (29) | N/A | N/A | N/A | 29.0 | |
| March 22, 2020, 4 p.m. | 24.6 ppb (23) | 11.8 ppb (11) | N/A | 13.0 ppb (12) | N/A | N/A | 28.0 ppb (22) | N/A | N/A | N/A | 23.0 | |
| March 22, 2020, 3 p.m. | 32.2 ppb (30) | 12.7 ppb (12) | N/A | 20.0 ppb (19) | N/A | N/A | 22.0 ppb (17) | N/A | N/A | N/A | 30.0 | |
| March 22, 2020, 2 p.m. | 37.2 ppb (34) | 10.4 ppb (10) | N/A | 27.0 ppb (25) | N/A | N/A | 11.0 ppb (8) | N/A | N/A | N/A | 34.0 | |
| March 22, 2020, 1 p.m. | 29.6 ppb (27) | 6.3 ppb (6) | N/A | 24.0 ppb (22) | N/A | N/A | 15.0 ppb (12) | N/A | N/A | N/A | 27.0 | |
| March 22, 2020, noon | 24.6 ppb (23) | 4.6 ppb (4) | N/A | 20.0 ppb (19) | N/A | N/A | 18.0 ppb (14) | N/A | N/A | N/A | 23.0 | |
| March 22, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 ppb (9) | N/A | N/A | N/A | 9.0 | |
| March 22, 2020, 10 a.m. | 34.1 ppb (32) | 6.1 ppb (6) | N/A | 28.0 ppb (26) | N/A | N/A | 7.0 ppb (5) | N/A | N/A | N/A | 32.0 | |
| March 22, 2020, 9 a.m. | 35.4 ppb (33) | 4.5 ppb (4) | N/A | 31.0 ppb (29) | N/A | N/A | 6.0 ppb (5) | N/A | N/A | N/A | 33.0 | |
| March 22, 2020, 8 a.m. | 31.6 ppb (29) | 1.9 ppb (2) | N/A | 30.0 ppb (28) | N/A | N/A | 8.0 ppb (6) | N/A | N/A | N/A | 29.0 | |
| March 22, 2020, 7 a.m. | 23.3 ppb (22) | 2.1 ppb (2) | N/A | 22.0 ppb (20) | N/A | N/A | 16.0 ppb (12) | 0.0 ppb (0) | N/A | N/A | 22.0 | |
| March 22, 2020, 6 a.m. | 25.3 ppb (23) | 2.4 ppb (2) | N/A | 23.0 ppb (21) | N/A | N/A | 17.0 ppb (13) | N/A | N/A | N/A | 23.0 | |
| March 22, 2020, 5 a.m. | 17.6 ppb (16) | 1.0 ppb (1) | N/A | 17.0 ppb (16) | N/A | N/A | 26.0 ppb (20) | N/A | N/A | N/A | 20.0 |