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| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 21, 2019, 7 a.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 3.0 | |
| March 21, 2019, 6 a.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 3.0 | |
| March 21, 2019, 5 a.m. | 5.0 ppb (5) | 1.0 ppb (1) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 5.0 | |
| March 21, 2019, 4 a.m. | 12.0 ppb (11) | 3.0 ppb (3) | N/A | 9.0 ppb (8) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 11.0 | |
| March 21, 2019, 2 a.m. | 53.0 ppb (49) | 31.0 ppb (29) | N/A | 22.0 ppb (20) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 49.0 | |
| March 21, 2019, 1 a.m. | 76.0 ppb (73) | 53.0 ppb (49) | N/A | 23.0 ppb (21) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 73.0 | |
| March 21, 2019, midnight | 62.0 ppb (59) | 40.0 ppb (37) | N/A | 22.0 ppb (20) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 59.0 | |
| March 20, 2019, 11 p.m. | 32.0 ppb (30) | 12.0 ppb (11) | N/A | 20.0 ppb (19) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 30.0 | |
| March 20, 2019, 9 p.m. | 61.0 ppb (57) | 37.0 ppb (34) | N/A | 24.0 ppb (22) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 57.0 | |
| March 20, 2019, 8 p.m. | 101.0 ppb (100) | 76.0 ppb (73) | N/A | 25.0 ppb (23) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 100.0 | |
| March 20, 2019, 7 p.m. | 108.0 ppb (101) | 83.0 ppb (81) | N/A | 25.0 ppb (23) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 101.0 | |
| March 20, 2019, 6 p.m. | 109.0 ppb (102) | 81.0 ppb (79) | N/A | 28.0 ppb (26) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 102.0 | |
| March 20, 2019, 5 p.m. | 91.0 ppb (89) | 63.0 ppb (60) | N/A | 28.0 ppb (26) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 89.0 | |
| March 20, 2019, 4 p.m. | 87.0 ppb (85) | 55.0 ppb (51) | N/A | 32.0 ppb (30) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 85.0 | |
| March 20, 2019, 3 p.m. | 119.0 ppb (103) | 85.0 ppb (83) | N/A | 34.0 ppb (31) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 103.0 | |
| March 20, 2019, 2 p.m. | 107.0 ppb (101) | 75.0 ppb (72) | N/A | 32.0 ppb (30) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 101.0 | |
| March 20, 2019, 1 p.m. | 42.0 ppb (39) | 18.0 ppb (17) | N/A | 24.0 ppb (22) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 39.0 | |
| March 20, 2019, noon | 4.0 ppb (4) | 1.0 ppb (1) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 4.0 | |
| March 20, 2019, 11 a.m. | 2.0 ppb (2) | 1.0 ppb (1) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 2.0 | |
| March 20, 2019, 10 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 1.0 | |
| March 20, 2019, 9 a.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 3.0 | |
| March 20, 2019, 8 a.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 3.0 | |
| March 20, 2019, 7 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 1.0 | |
| March 20, 2019, 6 a.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 3.0 | |
| March 20, 2019, 5 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 1.0 | |
| March 20, 2019, 4 a.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 3.0 | |
| March 20, 2019, 3 a.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 3.0 | |
| March 20, 2019, 2 a.m. | 15.0 ppb (14) | 5.0 ppb (5) | N/A | 10.0 ppb (9) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 14.0 | |
| March 20, 2019, 1 a.m. | 63.0 ppb (60) | 38.0 ppb (35) | N/A | 25.0 ppb (23) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 60.0 | |
| March 20, 2019, midnight | 347.0 ppb (147) | 303.0 ppb (139) | N/A | 44.0 ppb (41) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 147.0 | |
| March 19, 2019, 11 p.m. | 392.0 ppb (155) | 351.0 ppb (148) | N/A | 41.0 ppb (38) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 155.0 | |
| March 19, 2019, 10 p.m. | 238.0 ppb (126) | 213.0 ppb (122) | N/A | 25.0 ppb (23) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 126.0 | |
| March 19, 2019, 9 p.m. | 219.0 ppb (123) | 196.0 ppb (118) | N/A | 23.0 ppb (21) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 123.0 | |
| March 19, 2019, 8 p.m. | 202.0 ppb (119) | 180.0 ppb (115) | N/A | 22.0 ppb (20) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 119.0 | |
| March 19, 2019, 7 p.m. | 211.0 ppb (121) | 186.0 ppb (116) | N/A | 25.0 ppb (23) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 121.0 | |
| March 19, 2019, 6 p.m. | 171.0 ppb (113) | 147.0 ppb (109) | N/A | 24.0 ppb (22) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 113.0 | |
| March 19, 2019, 5 p.m. | 163.0 ppb (112) | 138.0 ppb (107) | N/A | 25.0 ppb (23) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 112.0 | |
| March 19, 2019, 3 p.m. | 122.0 ppb (104) | 101.0 ppb (100) | N/A | 21.0 ppb (19) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 104.0 | |
| March 19, 2019, 2 p.m. | 159.0 ppb (111) | 136.0 ppb (107) | N/A | 23.0 ppb (21) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 111.0 | |
| March 19, 2019, 1 p.m. | 93.0 ppb (91) | 73.0 ppb (70) | N/A | 20.0 ppb (19) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 91.0 | |
| March 19, 2019, noon | 12.0 ppb (11) | 4.0 ppb (4) | N/A | 8.0 ppb (7) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 11.0 | |
| March 19, 2019, 11 a.m. | 9.0 ppb (8) | 1.0 ppb (1) | N/A | 8.0 ppb (7) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 8.0 | |
| March 19, 2019, 10 a.m. | 4.0 ppb (4) | 1.0 ppb (1) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 4.0 | |
| March 19, 2019, 9 a.m. | 4.0 ppb (4) | 1.0 ppb (1) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 4.0 | |
| March 19, 2019, 8 a.m. | 4.0 ppb (4) | 1.0 ppb (1) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 4.0 | |
| March 19, 2019, 7 a.m. | 4.0 ppb (4) | 1.0 ppb (1) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 4.0 | |
| March 19, 2019, 6 a.m. | 4.0 ppb (4) | 1.0 ppb (1) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 4.0 | |
| March 19, 2019, 5 a.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 3.0 | |
| March 19, 2019, 4 a.m. | 10.0 ppb (9) | 1.0 ppb (1) | N/A | 9.0 ppb (8) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 9.0 | |
| March 19, 2019, 3 a.m. | 10.0 ppb (9) | 1.0 ppb (1) | N/A | 9.0 ppb (8) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 9.0 | |
| March 19, 2019, 2 a.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 3.0 | |
| March 19, 2019, 1 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 1.0 | |
| March 19, 2019, midnight | 1.0 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 1.0 | |
| March 18, 2019, 11 p.m. | 2.0 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 2.0 | |
| March 18, 2019, 10 p.m. | 4.0 ppb (4) | 1.0 ppb (1) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 4.0 | |
| March 18, 2019, 9 p.m. | 2.0 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 2.0 | |
| March 18, 2019, 8 p.m. | 5.0 ppb (5) | 1.0 ppb (1) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 5.0 | |
| March 18, 2019, 7 p.m. | 4.0 ppb (4) | 1.0 ppb (1) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 4.0 | |
| March 18, 2019, 6 p.m. | 2.0 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 2.0 | |
| March 18, 2019, 5 p.m. | 4.0 ppb (4) | 1.0 ppb (1) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 4.0 | |
| March 18, 2019, 4 p.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 3.0 | |
| March 18, 2019, 3 p.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 3.0 | |
| March 18, 2019, 2 p.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 3.0 | |
| March 18, 2019, 1 p.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 3.0 | |
| March 18, 2019, noon | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 3.0 | |
| March 18, 2019, 11 a.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 3.0 | |
| March 18, 2019, 10 a.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 3.0 | |
| March 18, 2019, 9 a.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 3.0 | |
| March 18, 2019, 8 a.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 3.0 | |
| March 18, 2019, 7 a.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 3.0 | |
| March 18, 2019, 6 a.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 3.0 | |
| March 18, 2019, 5 a.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 3.0 | |
| March 18, 2019, 4 a.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 3.0 | |
| March 18, 2019, 3 a.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 3.0 | |
| March 18, 2019, 2 a.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 3.0 | |
| March 18, 2019, 1 a.m. | 18.0 ppb (17) | 5.0 ppb (5) | N/A | 13.0 ppb (12) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 17.0 | |
| March 18, 2019, midnight | 82.0 ppb (80) | 52.0 ppb (48) | N/A | 30.0 ppb (28) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 80.0 | |
| March 17, 2019, 11 p.m. | 291.0 ppb (137) | 244.0 ppb (128) | N/A | 47.0 ppb (44) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | N/A | 137.0 | |
| March 17, 2019, 10 p.m. | 148.0 ppb (109) | 118.0 ppb (103) | N/A | 30.0 ppb (28) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 109.0 | |
| March 17, 2019, 9 p.m. | 156.0 ppb (111) | 126.0 ppb (105) | N/A | 30.0 ppb (28) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 111.0 | |
| March 17, 2019, 8 p.m. | 73.0 ppb (70) | 47.0 ppb (44) | N/A | 26.0 ppb (24) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 70.0 | |
| March 17, 2019, 7 p.m. | 12.0 ppb (11) | 1.0 ppb (1) | N/A | 11.0 ppb (10) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 11.0 | |
| March 17, 2019, 6 p.m. | 8.0 ppb (7) | 0.0 ppb (0) | N/A | 8.0 ppb (7) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 7.0 | |
| March 17, 2019, 5 p.m. | 12.0 ppb (11) | 0.0 ppb (0) | N/A | 12.0 ppb (11) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 11.0 | |
| March 17, 2019, 4 p.m. | 8.0 ppb (7) | 0.0 ppb (0) | N/A | 8.0 ppb (7) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 7.0 | |
| March 17, 2019, 3 p.m. | 4.0 ppb (4) | 0.0 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 4.0 | |
| March 17, 2019, 2 p.m. | 2.0 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 2.0 | |
| March 17, 2019, 1 p.m. | 2.0 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 2.0 | |
| March 17, 2019, noon | 2.0 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 2.0 | |
| March 17, 2019, 11 a.m. | 2.0 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 2.0 | |
| March 17, 2019, 10 a.m. | 2.0 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 2.0 | |
| March 17, 2019, 9 a.m. | 20.0 ppb (19) | 2.0 ppb (2) | N/A | 18.0 ppb (17) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 19.0 | |
| March 17, 2019, 8 a.m. | 9.0 ppb (8) | 2.0 ppb (2) | N/A | 7.0 ppb (6) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 8.0 | |
| March 17, 2019, 7 a.m. | 14.0 ppb (13) | 4.0 ppb (4) | N/A | 10.0 ppb (9) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 13.0 | |
| March 17, 2019, 6 a.m. | 36.0 ppb (33) | 17.0 ppb (16) | N/A | 19.0 ppb (18) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 33.0 | |
| March 17, 2019, 5 a.m. | 45.0 ppb (42) | 21.0 ppb (19) | N/A | 24.0 ppb (22) | N/A | 3.0 ppb (4) | N/A | N/A | N/A | N/A | 42.0 | |
| March 17, 2019, 4 a.m. | 10.0 ppb (9) | 4.0 ppb (4) | N/A | 6.0 ppb (6) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 9.0 | |
| March 17, 2019, 3 a.m. | 26.0 ppb (24) | 11.0 ppb (10) | N/A | 15.0 ppb (14) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 24.0 | |
| March 17, 2019, 2 a.m. | 10.0 ppb (9) | 3.0 ppb (3) | N/A | 7.0 ppb (6) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 9.0 | |
| March 17, 2019, 1 a.m. | 14.0 ppb (13) | 3.0 ppb (3) | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | N/A | N/A | 13.0 | |
| March 17, 2019, midnight | 122.0 ppb (104) | 78.0 ppb (76) | N/A | 44.0 ppb (41) | N/A | 4.0 ppb (6) | N/A | N/A | N/A | N/A | 104.0 | |
| March 16, 2019, 11 p.m. | 328.0 ppb (144) | 281.0 ppb (135) | N/A | 47.0 ppb (44) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | N/A | 144.0 | |
| March 16, 2019, 10 p.m. | 313.0 ppb (141) | 275.0 ppb (133) | N/A | 38.0 ppb (35) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 141.0 | |
| March 16, 2019, 9 p.m. | 370.0 ppb (152) | 328.0 ppb (144) | N/A | 42.0 ppb (39) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 152.0 | |
| March 16, 2019, 8 p.m. | 347.0 ppb (147) | 308.0 ppb (140) | N/A | 39.0 ppb (36) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 147.0 | |
| March 16, 2019, 7 p.m. | 248.0 ppb (128) | 216.0 ppb (122) | N/A | 32.0 ppb (30) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 128.0 | |
| March 16, 2019, 6 p.m. | 302.0 ppb (139) | 269.0 ppb (132) | N/A | 33.0 ppb (31) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 139.0 | |
| March 16, 2019, 5 p.m. | 282.0 ppb (135) | 248.0 ppb (128) | N/A | 34.0 ppb (31) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 135.0 | |
| March 16, 2019, 4 p.m. | 271.0 ppb (133) | 234.0 ppb (126) | N/A | 37.0 ppb (34) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 133.0 | |
| March 16, 2019, 3 p.m. | 201.0 ppb (119) | 165.0 ppb (112) | N/A | 36.0 ppb (33) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 119.0 | |
| March 16, 2019, 2 p.m. | 75.0 ppb (72) | 46.0 ppb (43) | N/A | 29.0 ppb (27) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 72.0 | |
| March 16, 2019, 1 p.m. | 12.0 ppb (11) | 1.0 ppb (1) | N/A | 11.0 ppb (10) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 11.0 | |
| March 16, 2019, noon | 6.0 ppb (6) | 1.0 ppb (1) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 6.0 | |
| March 16, 2019, 11 a.m. | 2.0 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 2.0 | |
| March 16, 2019, 10 a.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 3.0 | |
| March 16, 2019, 9 a.m. | 4.0 ppb (4) | 1.0 ppb (1) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 4.0 | |
| March 16, 2019, 8 a.m. | 8.0 ppb (7) | 2.0 ppb (2) | N/A | 6.0 ppb (6) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 7.0 | |
| March 16, 2019, 7 a.m. | 7.0 ppb (6) | 1.0 ppb (1) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 6.0 | |
| March 16, 2019, 6 a.m. | 13.0 ppb (12) | 4.0 ppb (4) | N/A | 9.0 ppb (8) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 12.0 | |
| March 16, 2019, 5 a.m. | 11.0 ppb (10) | 3.0 ppb (3) | N/A | 8.0 ppb (7) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 10.0 | |
| March 16, 2019, 4 a.m. | 18.0 ppb (17) | 6.0 ppb (6) | N/A | 12.0 ppb (11) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 17.0 | |
| March 16, 2019, 3 a.m. | 23.0 ppb (21) | 9.0 ppb (8) | N/A | 14.0 ppb (13) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 21.0 | |
| March 16, 2019, 2 a.m. | 28.0 ppb (26) | 12.0 ppb (11) | N/A | 16.0 ppb (15) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 26.0 | |
| March 16, 2019, 1 a.m. | 43.0 ppb (40) | 23.0 ppb (21) | N/A | 20.0 ppb (19) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 40.0 | |
| March 16, 2019, midnight | 7.0 ppb (6) | 2.0 ppb (2) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 6.0 | |
| March 15, 2019, 11 p.m. | 2.0 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 2.0 | |
| March 15, 2019, 10 p.m. | 2.0 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 2.0 | |
| March 15, 2019, 9 p.m. | 6.0 ppb (6) | 0.0 ppb (0) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 6.0 | |
| March 15, 2019, 8 p.m. | 27.0 ppb (25) | 6.0 ppb (6) | N/A | 21.0 ppb (19) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 25.0 | |
| March 15, 2019, 7 p.m. | 41.0 ppb (38) | 14.0 ppb (13) | N/A | 27.0 ppb (25) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 38.0 | |
| March 15, 2019, 6 p.m. | 27.0 ppb (25) | 6.0 ppb (6) | N/A | 21.0 ppb (19) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 25.0 | |
| March 15, 2019, 5 p.m. | 8.0 ppb (7) | 0.0 ppb (0) | N/A | 8.0 ppb (7) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 7.0 | |
| March 15, 2019, 4 p.m. | 14.0 ppb (13) | 1.0 ppb (1) | N/A | 13.0 ppb (12) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 13.0 | |
| March 15, 2019, 3 p.m. | 31.0 ppb (29) | 6.0 ppb (6) | N/A | 25.0 ppb (23) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 29.0 | |
| March 15, 2019, 2 p.m. | 18.0 ppb (17) | 2.0 ppb (2) | N/A | 16.0 ppb (15) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 17.0 | |
| March 15, 2019, 1 p.m. | 2.0 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 2.0 | |
| March 15, 2019, noon | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 3.0 | |
| March 15, 2019, 11 a.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 3.0 | |
| March 15, 2019, 10 a.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 3.0 | |
| March 15, 2019, 9 a.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 3.0 | |
| March 15, 2019, 8 a.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 3.0 | |
| March 15, 2019, 7 a.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 3.0 | |
| March 15, 2019, 6 a.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 3.0 | |
| March 15, 2019, 5 a.m. | 4.0 ppb (4) | 1.0 ppb (1) | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 4.0 | |
| March 15, 2019, 4 a.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 3.0 | |
| March 15, 2019, 3 a.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 3.0 | |
| March 15, 2019, 2 a.m. | 4.0 ppb (4) | 1.0 ppb (1) | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 4.0 | |
| March 15, 2019, 1 a.m. | 53.0 ppb (49) | 22.0 ppb (20) | N/A | 31.0 ppb (29) | N/A | 3.0 ppb (4) | N/A | N/A | N/A | N/A | 49.0 | |
| March 15, 2019, midnight | 104.0 ppb (101) | 64.0 ppb (61) | N/A | 40.0 ppb (37) | N/A | 2.0 ppb (3) | N/A | N/A | N/A | N/A | 101.0 | |
| March 14, 2019, 11 p.m. | 153.0 ppb (110) | 118.0 ppb (103) | N/A | 35.0 ppb (32) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 110.0 | |
| March 14, 2019, 10 p.m. | 31.0 ppb (29) | 12.0 ppb (11) | N/A | 19.0 ppb (18) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 29.0 | |
| March 14, 2019, 9 p.m. | 29.0 ppb (27) | 6.0 ppb (6) | N/A | 23.0 ppb (21) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 27.0 | |
| March 14, 2019, 8 p.m. | 33.0 ppb (31) | 8.0 ppb (7) | N/A | 25.0 ppb (23) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 31.0 | |
| March 14, 2019, 7 p.m. | 38.0 ppb (35) | 12.0 ppb (11) | N/A | 26.0 ppb (24) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 35.0 | |
| March 14, 2019, 6 p.m. | 38.0 ppb (35) | 11.0 ppb (10) | N/A | 27.0 ppb (25) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 35.0 | |
| March 14, 2019, 5 p.m. | 38.0 ppb (35) | 10.0 ppb (9) | N/A | 28.0 ppb (26) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 35.0 | |
| March 14, 2019, 4 p.m. | 33.0 ppb (31) | 6.0 ppb (6) | N/A | 27.0 ppb (25) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 31.0 | |
| March 14, 2019, 3 p.m. | 28.0 ppb (26) | 3.0 ppb (3) | N/A | 25.0 ppb (23) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 26.0 | |
| March 14, 2019, 2 p.m. | 19.0 ppb (18) | 2.0 ppb (2) | N/A | 17.0 ppb (16) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 18.0 | |
| March 14, 2019, 1 p.m. | 10.0 ppb (9) | 1.0 ppb (1) | N/A | 9.0 ppb (8) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 9.0 | |
| March 14, 2019, noon | 5.0 ppb (5) | 1.0 ppb (1) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 5.0 | |
| March 14, 2019, 11 a.m. | 4.0 ppb (4) | 1.0 ppb (1) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 4.0 | |
| March 14, 2019, 10 a.m. | 6.0 ppb (6) | 1.0 ppb (1) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 6.0 | |
| March 14, 2019, 9 a.m. | 5.0 ppb (5) | 1.0 ppb (1) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 5.0 | |
| March 14, 2019, 8 a.m. | 9.0 ppb (8) | 2.0 ppb (2) | N/A | 7.0 ppb (6) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 8.0 | |
| March 14, 2019, 7 a.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 3.0 | |
| March 14, 2019, 6 a.m. | 3.0 ppb (3) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 3.0 | |
| March 14, 2019, 5 a.m. | 6.0 ppb (6) | 2.0 ppb (2) | N/A | 4.0 ppb (4) | N/A | 1.0 ppb (1) | N/A | N/A | N/A | N/A | 6.0 |