Las Vegas (Sunrise Manor) NV, US: 36.141875, -115.078742
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| April 11, 2021, 2 a.m. | N/A | -0.3 ppb (0) | 8.9 ppb (9) | 13.0 ppb (13) | N/A | 1.0 ppb (2) | 43.0 ppb (40) | 0.23 ppb (3) | 46.1 μg/m3 (43) | 9.0 μg/m3 (38) | 43.0 | |
| April 11, 2021, 1 a.m. | N/A | -0.3 ppb (0) | 3.9 ppb (4) | 7.0 ppb (7) | N/A | 1.0 ppb (2) | 53.0 ppb (50) | 0.14 ppb (2) | 24.3 μg/m3 (23) | 6.1 μg/m3 (26) | 50.0 | |
| April 11, 2021, midnight | N/A | -0.3 ppb (0) | 2.5 ppb (3) | 5.0 ppb (5) | N/A | 1.0 ppb (2) | 55.0 ppb (51) | 0.13 ppb (2) | 22.8 μg/m3 (22) | 6.2 μg/m3 (26) | 51.0 | |
| April 10, 2021, 11 p.m. | N/A | -0.2 ppb (0) | 3.4 ppb (4) | 5.0 ppb (5) | N/A | 1.0 ppb (2) | 58.0 ppb (61) | 0.13 ppb (2) | 23.4 μg/m3 (22) | 6.4 μg/m3 (27) | 61.0 | |
| April 10, 2021, 10 p.m. | N/A | -0.3 ppb (0) | 3.0 ppb (3) | 5.0 ppb (5) | N/A | 1.0 ppb (2) | 61.0 ppb (71) | 0.13 ppb (2) | 24.9 μg/m3 (24) | 6.9 μg/m3 (29) | 71.0 | |
| April 10, 2021, 9 p.m. | N/A | -0.3 ppb (0) | 2.6 ppb (3) | 5.0 ppb (5) | N/A | 1.0 ppb (2) | 59.0 ppb (65) | 0.13 ppb (2) | 24.2 μg/m3 (23) | 6.5 μg/m3 (28) | 65.0 | |
| April 10, 2021, 8 p.m. | N/A | -0.1 ppb (0) | 3.2 ppb (4) | 5.0 ppb (5) | N/A | 1.0 ppb (2) | 55.0 ppb (51) | 0.14 ppb (2) | 29.1 μg/m3 (27) | 6.8 μg/m3 (29) | 51.0 | |
| April 10, 2021, 7 p.m. | N/A | -0.1 ppb (0) | 2.8 ppb (3) | 5.0 ppb (5) | N/A | 1.0 ppb (2) | 51.0 ppb (48) | 0.13 ppb (2) | 34.0 μg/m3 (32) | 7.1 μg/m3 (30) | 48.0 | |
| April 10, 2021, 6 p.m. | N/A | 0.3 ppb (1) | 4.2 ppb (4) | 6.0 ppb (6) | N/A | 1.0 ppb (2) | 47.0 ppb (44) | 0.14 ppb (2) | 33.5 μg/m3 (32) | 7.6 μg/m3 (32) | 44.0 | |
| April 10, 2021, 5 p.m. | N/A | 1.5 ppb (2) | 8.2 ppb (8) | 10.0 ppb (10) | N/A | 1.0 ppb (2) | 40.0 ppb (38) | 0.19 ppb (3) | 43.8 μg/m3 (41) | 8.6 μg/m3 (36) | 41.0 | |
| April 10, 2021, 4 p.m. | N/A | 11.3 ppb (11) | 32.7 ppb (31) | 25.0 ppb (24) | N/A | 1.0 ppb (2) | 25.0 ppb (24) | 0.41 ppb (5) | 69.7 μg/m3 (59) | 14.9 μg/m3 (57) | 59.0 | |
| April 10, 2021, 3 p.m. | N/A | 17.5 ppb (17) | 40.2 ppb (38) | 27.0 ppb (26) | N/A | 1.0 ppb (2) | 15.0 ppb (14) | 0.46 ppb (6) | 70.9 μg/m3 (59) | 15.4 μg/m3 (58) | 59.0 | |
| April 10, 2021, 2 p.m. | N/A | 15.8 ppb (15) | 38.3 ppb (37) | 26.0 ppb (25) | N/A | 1.0 ppb (2) | 9.0 ppb (9) | 0.46 ppb (6) | 62.8 μg/m3 (55) | 15.9 μg/m3 (59) | 59.0 | |
| April 10, 2021, 1 p.m. | N/A | 21.5 ppb (21) | 50.1 ppb (48) | 31.0 ppb (30) | N/A | 1.0 ppb (2) | 2.0 ppb (2) | 0.76 ppb (10) | 69.3 μg/m3 (59) | 19.8 μg/m3 (68) | 68.0 | |
| April 10, 2021, noon | N/A | 15.2 ppb (15) | 47.7 ppb (45) | 34.0 ppb (33) | N/A | 1.0 ppb (2) | 1.0 ppb (1) | 0.72 ppb (8) | 53.2 μg/m3 (50) | 17.9 μg/m3 (64) | 64.0 | |
| April 10, 2021, 11 a.m. | N/A | 13.9 ppb (14) | 45.4 ppb (43) | 34.0 ppb (33) | N/A | 1.0 ppb (2) | 2.0 ppb (2) | 0.71 ppb (8) | 60.8 μg/m3 (54) | 19.5 μg/m3 (67) | 67.0 | |
| April 10, 2021, 10 a.m. | N/A | 17.0 ppb (17) | 46.9 ppb (45) | 33.0 ppb (32) | N/A | 1.0 ppb (2) | 1.0 ppb (1) | 0.74 ppb (8) | 73.0 μg/m3 (60) | 20.9 μg/m3 (70) | 70.0 | |
| April 10, 2021, 9 a.m. | N/A | 29.8 ppb (29) | 64.3 ppb (62) | 39.0 ppb (37) | N/A | 1.0 ppb (2) | 2.0 ppb (2) | 0.91 ppb (11) | 79.6 μg/m3 (64) | 26.4 μg/m3 (82) | 82.0 | |
| April 10, 2021, 8 a.m. | N/A | 34.9 ppb (33) | 72.5 ppb (71) | 41.0 ppb (39) | N/A | 2.0 ppb (3) | 1.0 ppb (1) | 1.05 ppb (13) | 76.6 μg/m3 (62) | 24.7 μg/m3 (78) | 78.0 | |
| April 10, 2021, 7 a.m. | N/A | 40.2 ppb (38) | 78.3 ppb (77) | 41.0 ppb (39) | N/A | 2.0 ppb (3) | 1.0 ppb (1) | 1.1 ppb (13) | 93.3 μg/m3 (70) | 25.1 μg/m3 (79) | 79.0 | |
| April 10, 2021, 6 a.m. | N/A | 40.2 ppb (38) | 81.6 ppb (81) | 44.0 ppb (42) | N/A | 2.0 ppb (3) | 2.0 ppb (2) | 1.23 ppb (14) | 173.0 μg/m3 (110) | 30.9 μg/m3 (91) | 110.0 | |
| April 10, 2021, 5 a.m. | N/A | 17.7 ppb (17) | 59.4 ppb (57) | 44.0 ppb (42) | N/A | 1.0 ppb (2) | 2.0 ppb (2) | 0.9 ppb (11) | 78.4 μg/m3 (63) | 20.7 μg/m3 (70) | 70.0 | |
| April 10, 2021, 4 a.m. | N/A | 15.9 ppb (15) | 58.4 ppb (56) | 46.0 ppb (44) | N/A | 1.0 ppb (2) | 3.0 ppb (3) | 0.89 ppb (11) | 74.0 μg/m3 (61) | 21.2 μg/m3 (71) | 71.0 | |
| April 10, 2021, 3 a.m. | N/A | 5.0 ppb (5) | 37.7 ppb (36) | 33.0 ppb (32) | N/A | 1.0 ppb (2) | 16.0 ppb (15) | 0.61 ppb (7) | 64.3 μg/m3 (56) | 15.7 μg/m3 (59) | 59.0 | |
| April 10, 2021, 2 a.m. | N/A | 0.0 ppb (0) | 18.3 ppb (18) | 19.0 ppb (18) | N/A | 1.0 ppb (2) | 38.0 ppb (36) | 0.24 ppb (3) | 34.9 μg/m3 (33) | 9.4 μg/m3 (40) | 40.0 | |
| April 10, 2021, 1 a.m. | N/A | -0.4 ppb (0) | 2.9 ppb (3) | 6.0 ppb (6) | N/A | 1.0 ppb (2) | 54.0 ppb (50) | 0.12 ppb (2) | 28.6 μg/m3 (27) | 7.0 μg/m3 (30) | 50.0 | |
| April 10, 2021, midnight | N/A | -0.3 ppb (0) | 2.3 ppb (3) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 52.0 ppb (49) | 0.12 ppb (2) | 27.9 μg/m3 (26) | 7.1 μg/m3 (30) | 49.0 | |
| April 9, 2021, 11 p.m. | N/A | -0.3 ppb (0) | 1.8 ppb (2) | 5.0 ppb (5) | N/A | 1.0 ppb (2) | 51.0 ppb (48) | 0.12 ppb (2) | 29.9 μg/m3 (28) | 7.0 μg/m3 (30) | 48.0 | |
| April 9, 2021, 10 p.m. | N/A | -0.3 ppb (0) | 1.6 ppb (2) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 51.0 ppb (48) | 0.1 ppb (2) | 31.4 μg/m3 (30) | 7.3 μg/m3 (31) | 48.0 | |
| April 9, 2021, 9 p.m. | N/A | -0.3 ppb (0) | 1.5 ppb (2) | 4.0 ppb (4) | N/A | 1.0 ppb (2) | 51.0 ppb (48) | 0.11 ppb (2) | 34.8 μg/m3 (33) | 8.0 μg/m3 (34) | 48.0 | |
| April 9, 2021, 8 p.m. | N/A | -0.2 ppb (0) | 1.6 ppb (2) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 50.0 ppb (47) | 0.14 ppb (2) | 42.7 μg/m3 (40) | 9.0 μg/m3 (38) | 47.0 | |
| April 9, 2021, 7 p.m. | N/A | -0.2 ppb (0) | 1.6 ppb (2) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 50.0 ppb (47) | 0.14 ppb (2) | 52.0 μg/m3 (49) | 9.7 μg/m3 (41) | 49.0 | |
| April 9, 2021, 6 p.m. | N/A | -0.2 ppb (0) | 1.7 ppb (2) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 49.0 ppb (46) | 0.13 ppb (2) | 51.2 μg/m3 (48) | 9.5 μg/m3 (40) | 48.0 | |
| April 9, 2021, 5 p.m. | N/A | -0.1 ppb (0) | 1.8 ppb (2) | 4.0 ppb (4) | N/A | 1.0 ppb (2) | 48.0 ppb (45) | 0.14 ppb (2) | 52.2 μg/m3 (49) | 8.7 μg/m3 (37) | 49.0 | |
| April 9, 2021, 4 p.m. | N/A | 0.0 ppb (0) | 2.9 ppb (3) | 6.0 ppb (6) | N/A | 1.0 ppb (2) | 45.0 ppb (42) | 0.13 ppb (2) | 54.1 μg/m3 (51) | 8.6 μg/m3 (36) | 51.0 | |
| April 9, 2021, 3 p.m. | N/A | 2.2 ppb (3) | 11.2 ppb (11) | 13.0 ppb (13) | N/A | 1.0 ppb (2) | 35.0 ppb (33) | 0.2 ppb (3) | 49.5 μg/m3 (46) | 8.5 μg/m3 (36) | 46.0 | |
| April 9, 2021, 2 p.m. | N/A | 6.8 ppb (7) | 27.6 ppb (27) | 25.0 ppb (24) | N/A | 1.0 ppb (2) | 20.0 ppb (19) | 0.34 ppb (4) | 45.1 μg/m3 (42) | 9.9 μg/m3 (42) | 42.0 | |
| April 9, 2021, 1 p.m. | N/A | 2.3 ppb (3) | 24.6 ppb (24) | 27.0 ppb (26) | N/A | 1.0 ppb (2) | 14.0 ppb (13) | 0.36 ppb (5) | 37.4 μg/m3 (35) | 8.6 μg/m3 (36) | 36.0 | |
| April 9, 2021, noon | N/A | -0.4 ppb (0) | 11.3 ppb (11) | 16.0 ppb (16) | N/A | 0.0 ppb (0) | 27.0 ppb (25) | 0.21 ppb (3) | 23.8 μg/m3 (23) | 6.2 μg/m3 (26) | 26.0 | |
| April 9, 2021, 11 a.m. | N/A | -0.5 ppb (0) | 1.9 ppb (2) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 41.0 ppb (38) | 0.12 ppb (2) | 20.2 μg/m3 (19) | 5.0 μg/m3 (21) | 38.0 | |
| April 9, 2021, 10 a.m. | N/A | -0.4 ppb (0) | 1.4 ppb (2) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 41.0 ppb (38) | 0.12 ppb (2) | 29.8 μg/m3 (28) | 5.5 μg/m3 (23) | 38.0 | |
| April 9, 2021, 9 a.m. | N/A | -0.5 ppb (0) | 2.4 ppb (3) | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 39.0 ppb (37) | 0.14 ppb (2) | 20.3 μg/m3 (19) | 4.8 μg/m3 (20) | 37.0 | |
| April 9, 2021, 8 a.m. | N/A | -0.5 ppb (0) | 3.3 ppb (4) | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 38.0 ppb (36) | 0.14 ppb (2) | 16.9 μg/m3 (16) | 4.9 μg/m3 (21) | 36.0 | |
| April 9, 2021, 7 a.m. | N/A | -0.5 ppb (0) | 3.9 ppb (4) | 7.0 ppb (7) | N/A | 0.0 ppb (0) | 38.0 ppb (36) | 0.15 ppb (2) | 18.5 μg/m3 (18) | 4.6 μg/m3 (20) | 36.0 | |
| April 9, 2021, 6 a.m. | N/A | -0.1 ppb (0) | 6.2 ppb (6) | 9.0 ppb (9) | N/A | 0.0 ppb (0) | 37.0 ppb (35) | 0.16 ppb (3) | 32.0 μg/m3 (30) | 7.1 μg/m3 (30) | 35.0 | |
| April 9, 2021, 5 a.m. | N/A | -0.4 ppb (0) | 6.3 ppb (6) | 9.0 ppb (9) | N/A | 1.0 ppb (2) | 40.0 ppb (38) | 0.18 ppb (3) | 17.9 μg/m3 (17) | 4.5 μg/m3 (19) | 38.0 | |
| April 9, 2021, 4 a.m. | N/A | -0.3 ppb (0) | 6.8 ppb (7) | 10.0 ppb (10) | N/A | 0.0 ppb (0) | 41.0 ppb (38) | 0.17 ppb (3) | 21.1 μg/m3 (20) | 5.3 μg/m3 (23) | 38.0 | |
| April 9, 2021, 3 a.m. | N/A | -0.2 ppb (0) | 11.5 ppb (11) | 15.0 ppb (15) | N/A | 1.0 ppb (2) | 37.0 ppb (35) | 0.22 ppb (3) | 22.4 μg/m3 (21) | 5.6 μg/m3 (24) | 35.0 | |
| April 9, 2021, 2 a.m. | N/A | -0.3 ppb (0) | 6.2 ppb (6) | 9.0 ppb (9) | N/A | 1.0 ppb (2) | 48.0 ppb (45) | 0.17 ppb (3) | 24.7 μg/m3 (23) | 5.9 μg/m3 (25) | 45.0 | |
| April 9, 2021, 1 a.m. | N/A | -0.2 ppb (0) | 3.6 ppb (4) | 7.0 ppb (7) | N/A | 0.0 ppb (0) | 54.0 ppb (50) | 0.14 ppb (2) | 100.7 μg/m3 (74) | 10.0 μg/m3 (42) | 74.0 | |
| April 9, 2021, midnight | N/A | 0.3 ppb (1) | 4.4 ppb (5) | 7.0 ppb (7) | N/A | 0.0 ppb (0) | 54.0 ppb (50) | 0.13 ppb (2) | 52.7 μg/m3 (49) | 7.2 μg/m3 (31) | 50.0 | |
| April 8, 2021, 11 p.m. | N/A | 0.1 ppb (1) | 3.2 ppb (4) | 6.0 ppb (6) | N/A | 1.0 ppb (2) | 52.0 ppb (49) | 0.11 ppb (2) | 40.9 μg/m3 (38) | 6.1 μg/m3 (26) | 49.0 | |
| April 8, 2021, 10 p.m. | N/A | 0.0 ppb (0) | 2.7 ppb (3) | 5.0 ppb (5) | N/A | 1.0 ppb (2) | 49.0 ppb (46) | 0.12 ppb (2) | 38.1 μg/m3 (36) | 6.0 μg/m3 (25) | 46.0 | |
| April 8, 2021, 9 p.m. | N/A | 0.3 ppb (1) | 3.2 ppb (4) | 6.0 ppb (6) | N/A | 1.0 ppb (2) | 49.0 ppb (46) | 0.12 ppb (2) | 36.1 μg/m3 (34) | 5.8 μg/m3 (25) | 46.0 | |
| April 8, 2021, 8 p.m. | N/A | 0.3 ppb (1) | 3.4 ppb (4) | 6.0 ppb (6) | N/A | 1.0 ppb (2) | 47.0 ppb (44) | 0.12 ppb (2) | 48.5 μg/m3 (45) | 6.3 μg/m3 (27) | 45.0 | |
| April 8, 2021, 7 p.m. | N/A | 0.0 ppb (0) | 3.1 ppb (3) | 5.0 ppb (5) | N/A | 1.0 ppb (2) | 49.0 ppb (46) | 0.12 ppb (2) | 24.2 μg/m3 (23) | 5.9 μg/m3 (25) | 46.0 | |
| April 8, 2021, 6 p.m. | N/A | 0.5 ppb (1) | 4.9 ppb (5) | 7.0 ppb (7) | N/A | 1.0 ppb (2) | 46.0 ppb (43) | 0.13 ppb (2) | 38.5 μg/m3 (36) | 6.9 μg/m3 (29) | 43.0 | |
| April 8, 2021, 5 p.m. | N/A | 1.0 ppb (1) | 6.5 ppb (7) | 9.0 ppb (9) | N/A | 1.0 ppb (2) | 44.0 ppb (41) | 0.13 ppb (2) | 39.0 μg/m3 (37) | 6.9 μg/m3 (29) | 41.0 | |
| April 8, 2021, 4 p.m. | N/A | 3.2 ppb (4) | 14.2 ppb (14) | 14.0 ppb (14) | N/A | 1.0 ppb (2) | 33.0 ppb (31) | 0.18 ppb (3) | 53.6 μg/m3 (50) | 8.4 μg/m3 (36) | 50.0 | |
| April 8, 2021, 3 p.m. | N/A | 5.5 ppb (6) | 20.2 ppb (20) | 18.0 ppb (17) | N/A | 1.0 ppb (2) | 28.0 ppb (26) | 0.23 ppb (3) | 41.6 μg/m3 (39) | 7.8 μg/m3 (33) | 39.0 | |
| April 8, 2021, 2 p.m. | N/A | 2.4 ppb (3) | 15.8 ppb (15) | 17.0 ppb (17) | N/A | 1.0 ppb (2) | 26.0 ppb (25) | 0.22 ppb (3) | 31.4 μg/m3 (30) | 6.7 μg/m3 (28) | 30.0 | |
| April 8, 2021, 1 p.m. | N/A | 22.9 ppb (22) | 50.1 ppb (48) | 31.0 ppb (30) | N/A | 1.0 ppb (2) | 4.0 ppb (4) | 0.46 ppb (6) | 64.9 μg/m3 (56) | 13.8 μg/m3 (55) | 56.0 | |
| April 8, 2021, noon | N/A | 0.4 ppb (1) | 18.2 ppb (18) | 21.0 ppb (20) | N/A | 1.0 ppb (2) | 16.0 ppb (15) | 0.23 ppb (3) | 46.0 μg/m3 (43) | 9.5 μg/m3 (40) | 43.0 | |
| April 8, 2021, 11 a.m. | N/A | -0.3 ppb (0) | 10.0 ppb (10) | 13.0 ppb (13) | N/A | 1.0 ppb (2) | 36.0 ppb (34) | 0.19 ppb (3) | 27.6 μg/m3 (26) | 7.3 μg/m3 (31) | 34.0 | |
| April 8, 2021, 10 a.m. | N/A | -0.1 ppb (0) | 18.1 ppb (18) | 23.0 ppb (22) | N/A | 1.0 ppb (2) | 15.0 ppb (14) | 0.27 ppb (4) | 37.6 μg/m3 (35) | 8.6 μg/m3 (36) | 36.0 | |
| April 8, 2021, 9 a.m. | N/A | -0.4 ppb (0) | 6.4 ppb (7) | 9.0 ppb (9) | N/A | 1.0 ppb (2) | 30.0 ppb (28) | 0.15 ppb (2) | 21.6 μg/m3 (20) | 5.2 μg/m3 (22) | 28.0 | |
| April 8, 2021, 8 a.m. | N/A | -0.5 ppb (0) | 3.7 ppb (4) | 7.0 ppb (7) | N/A | 1.0 ppb (2) | 36.0 ppb (34) | 0.11 ppb (2) | 21.0 μg/m3 (20) | 4.4 μg/m3 (19) | 34.0 | |
| April 8, 2021, 7 a.m. | N/A | -0.5 ppb (0) | 4.2 ppb (4) | 7.0 ppb (7) | N/A | 1.0 ppb (2) | 37.0 ppb (35) | 0.11 ppb (2) | 23.4 μg/m3 (22) | 4.7 μg/m3 (20) | 35.0 | |
| April 8, 2021, 6 a.m. | N/A | -0.4 ppb (0) | 3.4 ppb (4) | 6.0 ppb (6) | N/A | 1.0 ppb (2) | 38.0 ppb (36) | 0.11 ppb (2) | 30.1 μg/m3 (28) | 5.5 μg/m3 (23) | 36.0 | |
| April 8, 2021, 5 a.m. | N/A | -0.4 ppb (0) | 4.4 ppb (5) | 7.0 ppb (7) | N/A | 1.0 ppb (2) | 37.0 ppb (35) | 0.12 ppb (2) | 37.1 μg/m3 (35) | 6.2 μg/m3 (26) | 35.0 | |
| April 8, 2021, 4 a.m. | N/A | -0.4 ppb (0) | 6.3 ppb (6) | 9.0 ppb (9) | N/A | 1.0 ppb (2) | 38.0 ppb (36) | 0.15 ppb (2) | 39.1 μg/m3 (37) | 7.6 μg/m3 (32) | 37.0 | |
| April 8, 2021, 3 a.m. | N/A | -0.2 ppb (0) | 16.0 ppb (16) | 17.0 ppb (17) | N/A | 1.0 ppb (2) | 33.0 ppb (31) | 0.29 ppb (4) | 40.6 μg/m3 (38) | 9.7 μg/m3 (41) | 41.0 | |
| April 8, 2021, 2 a.m. | N/A | -0.2 ppb (0) | 12.4 ppb (12) | 15.0 ppb (15) | N/A | 1.0 ppb (2) | 38.0 ppb (36) | 0.26 ppb (4) | 28.7 μg/m3 (27) | 7.6 μg/m3 (32) | 36.0 | |
| April 8, 2021, 1 a.m. | N/A | -0.3 ppb (0) | 4.6 ppb (5) | 7.0 ppb (7) | N/A | 1.0 ppb (2) | 52.0 ppb (49) | 0.15 ppb (2) | 23.1 μg/m3 (22) | 6.2 μg/m3 (26) | 49.0 | |
| April 8, 2021, midnight | N/A | 0.0 ppb (0) | 3.1 ppb (3) | 6.0 ppb (6) | N/A | 1.0 ppb (2) | 52.0 ppb (49) | 0.15 ppb (2) | 32.2 μg/m3 (30) | 7.1 μg/m3 (30) | 49.0 | |
| April 7, 2021, 11 p.m. | N/A | 0.2 ppb (1) | 3.8 ppb (4) | 6.0 ppb (6) | N/A | 1.0 ppb (2) | 53.0 ppb (50) | 0.13 ppb (2) | 30.8 μg/m3 (29) | 6.7 μg/m3 (28) | 50.0 | |
| April 7, 2021, 10 p.m. | N/A | -0.2 ppb (0) | 2.5 ppb (3) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 55.0 ppb (51) | 0.17 ppb (3) | 29.7 μg/m3 (28) | 6.4 μg/m3 (27) | 51.0 | |
| April 7, 2021, 9 p.m. | N/A | -0.2 ppb (0) | 2.7 ppb (3) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 54.0 ppb (50) | 0.13 ppb (2) | 30.0 μg/m3 (28) | 6.5 μg/m3 (28) | 50.0 | |
| April 7, 2021, 8 p.m. | N/A | -0.2 ppb (0) | 2.0 ppb (2) | 4.0 ppb (4) | N/A | 1.0 ppb (2) | 51.0 ppb (48) | 0.12 ppb (2) | 21.8 μg/m3 (21) | 5.6 μg/m3 (24) | 48.0 | |
| April 7, 2021, 7 p.m. | N/A | 0.1 ppb (1) | 2.7 ppb (3) | 5.0 ppb (5) | N/A | 1.0 ppb (2) | 48.0 ppb (45) | 0.12 ppb (2) | 17.4 μg/m3 (17) | 4.3 μg/m3 (18) | 45.0 | |
| April 7, 2021, 6 p.m. | N/A | 0.5 ppb (1) | 4.5 ppb (5) | 7.0 ppb (7) | N/A | 1.0 ppb (2) | 46.0 ppb (43) | 0.14 ppb (2) | 20.6 μg/m3 (20) | 4.6 μg/m3 (20) | 43.0 | |
| April 7, 2021, 5 p.m. | N/A | 2.0 ppb (2) | 9.5 ppb (9) | 10.0 ppb (10) | N/A | 1.0 ppb (2) | 38.0 ppb (36) | 0.17 ppb (3) | 27.9 μg/m3 (26) | 5.7 μg/m3 (24) | 36.0 | |
| April 7, 2021, 4 p.m. | N/A | N/A | N/A | 23.0 ppb (22) | N/A | 1.0 ppb (2) | 24.0 ppb (23) | 0.31 ppb (4) | 48.5 μg/m3 (45) | 8.6 μg/m3 (36) | 45.0 | |
| April 7, 2021, 3 p.m. | N/A | N/A | N/A | 31.0 ppb (30) | N/A | 1.0 ppb (2) | 10.0 ppb (10) | 0.48 ppb (6) | 69.4 μg/m3 (59) | 13.2 μg/m3 (54) | 59.0 | |
| April 7, 2021, 2 p.m. | N/A | 24.4 ppb (24) | 50.7 ppb (48) | 30.0 ppb (29) | N/A | 1.0 ppb (2) | 7.0 ppb (7) | 0.48 ppb (6) | 66.6 μg/m3 (57) | 11.2 μg/m3 (47) | 57.0 | |
| April 7, 2021, 1 p.m. | N/A | 23.4 ppb (23) | 50.4 ppb (48) | N/A | N/A | 1.0 ppb (2) | 2.0 ppb (2) | 0.56 ppb (7) | 47.9 μg/m3 (45) | 12.6 μg/m3 (53) | 53.0 | |
| April 7, 2021, noon | N/A | 23.7 ppb (23) | 53.5 ppb (51) | 33.0 ppb (32) | N/A | 1.0 ppb (2) | 1.0 ppb (1) | 0.67 ppb (8) | 49.1 μg/m3 (46) | 14.7 μg/m3 (57) | 57.0 | |
| April 7, 2021, 11 a.m. | N/A | 23.5 ppb (23) | 54.5 ppb (52) | 34.0 ppb (33) | N/A | 1.0 ppb (2) | 2.0 ppb (2) | 0.69 ppb (8) | 51.7 μg/m3 (48) | 16.0 μg/m3 (60) | 60.0 | |
| April 7, 2021, 10 a.m. | N/A | 16.7 ppb (16) | 44.9 ppb (43) | 31.0 ppb (30) | N/A | 1.0 ppb (2) | 1.0 ppb (1) | 0.65 ppb (8) | 67.3 μg/m3 (58) | 15.4 μg/m3 (58) | 58.0 | |
| April 7, 2021, 9 a.m. | N/A | 25.2 ppb (24) | 56.8 ppb (54) | 35.0 ppb (34) | N/A | 1.0 ppb (2) | 1.0 ppb (1) | 0.81 ppb (10) | 57.1 μg/m3 (53) | 16.6 μg/m3 (61) | 61.0 | |
| April 7, 2021, 8 a.m. | N/A | 27.8 ppb (27) | 61.8 ppb (60) | 37.0 ppb (35) | N/A | 1.0 ppb (2) | 1.0 ppb (1) | 0.8 ppb (10) | 58.4 μg/m3 (53) | 15.7 μg/m3 (59) | 60.0 | |
| April 7, 2021, 7 a.m. | N/A | 19.3 ppb (19) | 54.6 ppb (52) | 38.0 ppb (36) | N/A | 1.0 ppb (2) | 1.0 ppb (1) | 0.75 ppb (10) | 53.3 μg/m3 (50) | 15.4 μg/m3 (58) | 58.0 | |
| April 7, 2021, 6 a.m. | N/A | 19.7 ppb (19) | 57.0 ppb (55) | 40.0 ppb (38) | N/A | 1.0 ppb (2) | 2.0 ppb (2) | 0.8 ppb (10) | 55.6 μg/m3 (52) | 16.0 μg/m3 (60) | 60.0 | |
| April 7, 2021, 5 a.m. | N/A | 3.0 ppb (3) | 30.5 ppb (29) | 30.0 ppb (29) | N/A | 1.0 ppb (2) | 11.0 ppb (11) | 0.44 ppb (5) | 50.0 μg/m3 (47) | 12.7 μg/m3 (53) | 53.0 | |
| April 7, 2021, 4 a.m. | N/A | 0.8 ppb (1) | 21.3 ppb (21) | 24.0 ppb (23) | N/A | 1.0 ppb (2) | 20.0 ppb (19) | 0.45 ppb (6) | 49.8 μg/m3 (47) | 11.4 μg/m3 (48) | 48.0 | |
| April 7, 2021, 3 a.m. | N/A | -0.2 ppb (0) | 14.2 ppb (14) | 19.0 ppb (18) | N/A | 1.0 ppb (2) | 29.0 ppb (27) | 0.28 ppb (4) | 45.9 μg/m3 (43) | 9.2 μg/m3 (39) | 43.0 | |
| April 7, 2021, 2 a.m. | N/A | -0.2 ppb (0) | 9.3 ppb (9) | 13.0 ppb (13) | N/A | 1.0 ppb (2) | 40.0 ppb (38) | 0.24 ppb (3) | 32.0 μg/m3 (30) | 6.9 μg/m3 (29) | 38.0 | |
| April 7, 2021, 1 a.m. | N/A | -0.4 ppb (0) | 2.1 ppb (2) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 52.0 ppb (49) | N/A | 33.4 μg/m3 (31) | 6.3 μg/m3 (27) | 49.0 | |
| April 7, 2021, midnight | N/A | -0.2 ppb (0) | 2.5 ppb (3) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 52.0 ppb (49) | 0.13 ppb (2) | 35.3 μg/m3 (33) | 6.6 μg/m3 (28) | 49.0 | |
| April 6, 2021, 11 p.m. | N/A | -0.2 ppb (0) | 2.1 ppb (2) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 52.0 ppb (49) | 0.12 ppb (2) | 36.4 μg/m3 (34) | 7.0 μg/m3 (30) | 49.0 | |
| April 6, 2021, 10 p.m. | N/A | -0.2 ppb (0) | 1.9 ppb (2) | 4.0 ppb (4) | N/A | 1.0 ppb (2) | 51.0 ppb (48) | 0.11 ppb (2) | 42.7 μg/m3 (40) | 7.4 μg/m3 (31) | 48.0 | |
| April 6, 2021, 9 p.m. | N/A | -0.3 ppb (0) | 1.4 ppb (2) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 50.0 ppb (47) | 0.11 ppb (2) | 46.4 μg/m3 (43) | 8.0 μg/m3 (34) | 47.0 | |
| April 6, 2021, 8 p.m. | N/A | -0.3 ppb (0) | 1.4 ppb (2) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 51.0 ppb (48) | 0.12 ppb (2) | 49.6 μg/m3 (46) | 8.9 μg/m3 (38) | 48.0 | |
| April 6, 2021, 7 p.m. | N/A | -0.2 ppb (0) | 1.5 ppb (2) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 54.0 ppb (50) | 0.11 ppb (2) | 55.7 μg/m3 (52) | 9.2 μg/m3 (39) | 52.0 | |
| April 6, 2021, 6 p.m. | N/A | -0.3 ppb (0) | 1.4 ppb (2) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 56.0 ppb (55) | 0.11 ppb (2) | 58.0 μg/m3 (53) | 9.3 μg/m3 (39) | 55.0 | |
| April 6, 2021, 5 p.m. | N/A | -0.2 ppb (0) | 1.6 ppb (2) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 57.0 ppb (58) | 0.12 ppb (2) | 55.3 μg/m3 (52) | 8.5 μg/m3 (36) | 58.0 | |
| April 6, 2021, 4 p.m. | N/A | -0.2 ppb (0) | 1.9 ppb (2) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 58.0 ppb (61) | 0.12 ppb (2) | 89.4 μg/m3 (69) | 11.4 μg/m3 (48) | 69.0 | |
| April 6, 2021, 3 p.m. | N/A | 0.3 ppb (1) | 3.1 ppb (3) | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 56.0 ppb (55) | 0.12 ppb (2) | 123.2 μg/m3 (85) | 14.9 μg/m3 (57) | 85.0 | |
| April 6, 2021, 2 p.m. | N/A | -0.1 ppb (0) | 3.5 ppb (4) | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 52.0 ppb (49) | 0.13 ppb (2) | 133.0 μg/m3 (90) | 18.3 μg/m3 (65) | 90.0 | |
| April 6, 2021, 1 p.m. | N/A | -0.4 ppb (0) | 2.4 ppb (3) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 52.0 ppb (49) | 0.12 ppb (2) | 149.1 μg/m3 (98) | 19.9 μg/m3 (68) | 98.0 | |
| April 6, 2021, noon | N/A | -0.4 ppb (0) | 2.0 ppb (2) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 49.0 ppb (46) | 0.11 ppb (2) | 188.6 μg/m3 (118) | 26.0 μg/m3 (81) | 118.0 | |
| April 6, 2021, 11 a.m. | N/A | -0.4 ppb (0) | 2.0 ppb (2) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 44.0 ppb (41) | 0.11 ppb (2) | 99.7 μg/m3 (74) | 15.2 μg/m3 (58) | 74.0 | |
| April 6, 2021, 10 a.m. | N/A | -0.4 ppb (0) | 1.5 ppb (2) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 44.0 ppb (41) | 0.1 ppb (2) | 33.2 μg/m3 (31) | 5.7 μg/m3 (24) | 41.0 | |
| April 6, 2021, 9 a.m. | N/A | -0.4 ppb (0) | 1.9 ppb (2) | 5.0 ppb (5) | N/A | 1.0 ppb (2) | 43.0 ppb (40) | 0.1 ppb (2) | 24.9 μg/m3 (24) | 4.9 μg/m3 (21) | 40.0 | |
| April 6, 2021, 8 a.m. | N/A | -0.4 ppb (0) | 1.8 ppb (2) | 5.0 ppb (5) | N/A | 1.0 ppb (2) | N/A | 0.11 ppb (2) | 23.9 μg/m3 (23) | 5.0 μg/m3 (21) | 23.0 | |
| April 6, 2021, 7 a.m. | N/A | -0.4 ppb (0) | 1.6 ppb (2) | 5.0 ppb (5) | N/A | 1.0 ppb (2) | 46.0 ppb (43) | 0.1 ppb (2) | 38.4 μg/m3 (36) | 5.5 μg/m3 (23) | 43.0 | |
| April 6, 2021, 6 a.m. | N/A | -0.4 ppb (0) | 1.8 ppb (2) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 46.0 ppb (43) | 0.11 ppb (2) | 62.9 μg/m3 (55) | 6.9 μg/m3 (29) | 55.0 | |
| April 6, 2021, 5 a.m. | N/A | -0.4 ppb (0) | 2.7 ppb (3) | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 47.0 ppb (44) | 0.12 ppb (2) | 38.3 μg/m3 (36) | 6.0 μg/m3 (25) | 44.0 | |
| April 6, 2021, 4 a.m. | N/A | -0.3 ppb (0) | 3.7 ppb (4) | 7.0 ppb (7) | N/A | 1.0 ppb (2) | 45.0 ppb (42) | 0.12 ppb (2) | 55.3 μg/m3 (52) | 7.3 μg/m3 (31) | 52.0 | |
| April 6, 2021, 3 a.m. | N/A | -0.4 ppb (0) | 3.3 ppb (4) | 6.0 ppb (6) | N/A | 1.0 ppb (2) | 48.0 ppb (45) | 0.11 ppb (2) | 83.6 μg/m3 (66) | 9.5 μg/m3 (40) | 66.0 | |
| April 6, 2021, 2 a.m. | N/A | -0.3 ppb (0) | 4.0 ppb (4) | 7.0 ppb (7) | N/A | 1.0 ppb (2) | 46.0 ppb (43) | 0.12 ppb (2) | 60.0 μg/m3 (54) | 9.0 μg/m3 (38) | 54.0 | |
| April 6, 2021, 1 a.m. | N/A | -0.2 ppb (0) | 3.4 ppb (4) | 6.0 ppb (6) | N/A | 1.0 ppb (2) | 49.0 ppb (46) | 0.12 ppb (2) | 56.6 μg/m3 (52) | 9.1 μg/m3 (38) | 52.0 | |
| April 6, 2021, midnight | N/A | -0.1 ppb (0) | 2.6 ppb (3) | 5.0 ppb (5) | N/A | 1.0 ppb (2) | 50.0 ppb (47) | 0.11 ppb (2) | 44.3 μg/m3 (42) | 7.0 μg/m3 (30) | 47.0 | |
| April 5, 2021, 11 p.m. | N/A | -0.1 ppb (0) | 2.3 ppb (3) | 5.0 ppb (5) | N/A | 1.0 ppb (2) | 51.0 ppb (48) | 0.12 ppb (2) | 45.1 μg/m3 (42) | 7.1 μg/m3 (30) | 48.0 | |
| April 5, 2021, 10 p.m. | N/A | 0.0 ppb (0) | 2.7 ppb (3) | 5.0 ppb (5) | N/A | 1.0 ppb (2) | 50.0 ppb (47) | 0.11 ppb (2) | 46.6 μg/m3 (44) | 6.4 μg/m3 (27) | 47.0 | |
| April 5, 2021, 9 p.m. | N/A | 0.1 ppb (1) | 2.6 ppb (3) | 5.0 ppb (5) | N/A | 1.0 ppb (2) | 50.0 ppb (47) | 0.1 ppb (2) | 39.4 μg/m3 (37) | 5.9 μg/m3 (25) | 47.0 | |
| April 5, 2021, 8 p.m. | N/A | 0.3 ppb (1) | 3.5 ppb (4) | 6.0 ppb (6) | N/A | 1.0 ppb (2) | 51.0 ppb (48) | 0.11 ppb (2) | 104.5 μg/m3 (76) | 7.7 μg/m3 (33) | 76.0 | |
| April 5, 2021, 7 p.m. | N/A | 0.3 ppb (1) | 4.3 ppb (5) | 6.0 ppb (6) | N/A | 1.0 ppb (2) | 50.0 ppb (47) | 0.12 ppb (2) | 54.0 μg/m3 (50) | 5.7 μg/m3 (24) | 50.0 | |
| April 5, 2021, 6 p.m. | N/A | 0.8 ppb (1) | 5.8 ppb (6) | 8.0 ppb (8) | N/A | 1.0 ppb (2) | 45.0 ppb (42) | 0.12 ppb (2) | 23.4 μg/m3 (22) | 4.6 μg/m3 (20) | 42.0 | |
| April 5, 2021, 5 p.m. | N/A | 0.5 ppb (1) | 4.1 ppb (4) | 6.0 ppb (6) | N/A | 1.0 ppb (2) | 42.0 ppb (39) | 0.11 ppb (2) | 22.1 μg/m3 (21) | 4.3 μg/m3 (18) | 39.0 | |
| April 5, 2021, 4 p.m. | N/A | 6.0 ppb (6) | 19.3 ppb (19) | 17.0 ppb (17) | N/A | 1.0 ppb (2) | 29.0 ppb (27) | 0.23 ppb (3) | 35.9 μg/m3 (34) | 6.2 μg/m3 (26) | 34.0 | |
| April 5, 2021, 3 p.m. | N/A | 30.3 ppb (29) | 59.3 ppb (57) | 33.0 ppb (32) | N/A | 1.0 ppb (2) | 11.0 ppb (11) | 0.63 ppb (7) | 61.8 μg/m3 (55) | 12.4 μg/m3 (52) | 57.0 | |
| April 5, 2021, 2 p.m. | N/A | 61.7 ppb (60) | 94.5 ppb (95) | 38.0 ppb (36) | N/A | 2.0 ppb (3) | 3.0 ppb (3) | 0.94 ppb (11) | 66.4 μg/m3 (57) | 15.2 μg/m3 (58) | 95.0 | |
| April 5, 2021, 1 p.m. | N/A | 46.7 ppb (45) | 76.4 ppb (75) | 33.0 ppb (32) | N/A | 2.0 ppb (3) | 1.0 ppb (1) | 0.79 ppb (10) | 47.4 μg/m3 (44) | 12.8 μg/m3 (53) | 75.0 | |
| April 5, 2021, noon | N/A | 23.5 ppb (23) | 52.3 ppb (50) | 32.0 ppb (31) | N/A | 1.0 ppb (2) | 1.0 ppb (1) | 0.61 ppb (7) | 35.1 μg/m3 (33) | 11.5 μg/m3 (48) | 50.0 | |
| April 5, 2021, 11 a.m. | N/A | 6.0 ppb (6) | 34.4 ppb (33) | 31.0 ppb (30) | N/A | 1.0 ppb (2) | 2.0 ppb (2) | 0.49 ppb (6) | 35.4 μg/m3 (33) | 9.9 μg/m3 (42) | 42.0 | |
| April 5, 2021, 10 a.m. | N/A | 0.3 ppb (1) | 21.8 ppb (21) | 27.0 ppb (26) | N/A | 1.0 ppb (2) | 12.0 ppb (12) | 0.32 ppb (4) | 29.9 μg/m3 (28) | 8.2 μg/m3 (35) | 35.0 | |
| April 5, 2021, 9 a.m. | N/A | -0.2 ppb (0) | 15.2 ppb (15) | 18.0 ppb (17) | N/A | 1.0 ppb (2) | 19.0 ppb (18) | 0.25 ppb (3) | 25.8 μg/m3 (24) | 7.5 μg/m3 (32) | 32.0 | |
| April 5, 2021, 8 a.m. | N/A | -0.4 ppb (0) | 7.5 ppb (8) | 12.0 ppb (12) | N/A | 0.0 ppb (0) | 33.0 ppb (31) | 0.16 ppb (3) | 20.9 μg/m3 (20) | 4.6 μg/m3 (20) | 31.0 | |
| April 5, 2021, 7 a.m. | N/A | -0.4 ppb (0) | 7.7 ppb (8) | 10.0 ppb (10) | N/A | 1.0 ppb (2) | 36.0 ppb (34) | 0.17 ppb (3) | 17.4 μg/m3 (17) | 4.9 μg/m3 (21) | 34.0 | |
| April 5, 2021, 6 a.m. | N/A | -0.2 ppb (0) | 17.2 ppb (17) | 21.0 ppb (20) | N/A | 1.0 ppb (2) | 23.0 ppb (22) | 0.27 ppb (4) | 26.9 μg/m3 (25) | 7.5 μg/m3 (32) | 32.0 | |
| April 5, 2021, 5 a.m. | N/A | -0.2 ppb (0) | 17.9 ppb (17) | 21.0 ppb (20) | N/A | 1.0 ppb (2) | 30.0 ppb (28) | 0.25 ppb (3) | 20.3 μg/m3 (19) | 6.1 μg/m3 (26) | 28.0 | |
| April 5, 2021, 4 a.m. | N/A | -0.3 ppb (0) | 15.9 ppb (15) | 19.0 ppb (18) | N/A | 1.0 ppb (2) | 38.0 ppb (36) | 0.22 ppb (3) | 17.9 μg/m3 (17) | 6.2 μg/m3 (26) | 36.0 | |
| April 5, 2021, 3 a.m. | N/A | -0.3 ppb (0) | 12.0 ppb (12) | 16.0 ppb (16) | N/A | N/A | 42.0 ppb (39) | 0.24 ppb (3) | 18.6 μg/m3 (18) | 6.3 μg/m3 (27) | 39.0 | |
| April 5, 2021, 2 a.m. | N/A | -0.4 ppb (0) | 6.0 ppb (6) | 9.0 ppb (9) | N/A | N/A | 50.0 ppb (47) | 0.18 ppb (3) | 16.6 μg/m3 (16) | 5.0 μg/m3 (21) | 47.0 | |
| April 5, 2021, 1 a.m. | N/A | -0.3 ppb (0) | 4.7 ppb (5) | 8.0 ppb (8) | N/A | 1.0 ppb (2) | 53.0 ppb (50) | 0.15 ppb (2) | 16.7 μg/m3 (16) | 4.7 μg/m3 (20) | 50.0 | |
| April 5, 2021, midnight | N/A | -0.1 ppb (0) | 3.0 ppb (3) | 5.0 ppb (5) | N/A | 1.0 ppb (2) | 54.0 ppb (50) | 0.12 ppb (2) | 24.2 μg/m3 (23) | 5.0 μg/m3 (21) | 50.0 | |
| April 4, 2021, 11 p.m. | N/A | -0.2 ppb (0) | 2.5 ppb (3) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 52.0 ppb (49) | 0.13 ppb (2) | 17.6 μg/m3 (17) | 4.8 μg/m3 (20) | 49.0 | |
| April 4, 2021, 10 p.m. | N/A | -0.3 ppb (0) | 2.2 ppb (3) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 54.0 ppb (50) | 0.11 ppb (2) | 16.3 μg/m3 (16) | 4.3 μg/m3 (18) | 50.0 | |
| April 4, 2021, 9 p.m. | N/A | 0.0 ppb (0) | 4.3 ppb (5) | 6.0 ppb (6) | N/A | 1.0 ppb (2) | 59.0 ppb (65) | 0.13 ppb (2) | 16.6 μg/m3 (16) | 4.6 μg/m3 (20) | 65.0 | |
| April 4, 2021, 8 p.m. | N/A | 0.2 ppb (1) | 4.8 ppb (5) | 7.0 ppb (7) | N/A | 1.0 ppb (2) | 57.0 ppb (58) | 0.13 ppb (2) | 17.5 μg/m3 (17) | 4.8 μg/m3 (20) | 58.0 | |
| April 4, 2021, 7 p.m. | N/A | 0.0 ppb (0) | 3.6 ppb (4) | 5.0 ppb (5) | N/A | 1.0 ppb (2) | 57.0 ppb (58) | 0.13 ppb (2) | 17.8 μg/m3 (17) | 5.2 μg/m3 (22) | 58.0 | |
| April 4, 2021, 6 p.m. | N/A | 0.6 ppb (1) | 6.4 ppb (7) | 8.0 ppb (8) | N/A | 1.0 ppb (2) | 52.0 ppb (49) | 0.17 ppb (3) | 21.9 μg/m3 (21) | 6.3 μg/m3 (27) | 49.0 | |
| April 4, 2021, 5 p.m. | N/A | 1.9 ppb (2) | 10.5 ppb (10) | 11.0 ppb (11) | N/A | 0.0 ppb (0) | 44.0 ppb (41) | 0.22 ppb (3) | 31.4 μg/m3 (30) | 7.8 μg/m3 (33) | 41.0 | |
| April 4, 2021, 4 p.m. | N/A | 3.2 ppb (4) | 13.3 ppb (13) | 14.0 ppb (14) | N/A | 1.0 ppb (2) | 35.0 ppb (33) | 0.25 ppb (3) | 35.2 μg/m3 (33) | 7.8 μg/m3 (33) | 33.0 | |
| April 4, 2021, 3 p.m. | N/A | 11.5 ppb (11) | 31.5 ppb (30) | 24.0 ppb (23) | N/A | 1.0 ppb (2) | 20.0 ppb (19) | 0.48 ppb (6) | 44.2 μg/m3 (41) | 11.6 μg/m3 (49) | 49.0 | |
| April 4, 2021, 2 p.m. | N/A | 17.7 ppb (17) | 42.5 ppb (41) | 27.0 ppb (26) | N/A | 1.0 ppb (2) | 8.0 ppb (8) | 0.66 ppb (8) | 41.3 μg/m3 (39) | 14.9 μg/m3 (57) | 57.0 | |
| April 4, 2021, 1 p.m. | N/A | 11.6 ppb (11) | 39.7 ppb (38) | 30.0 ppb (29) | N/A | 1.0 ppb (2) | 2.0 ppb (2) | 0.65 ppb (8) | 37.9 μg/m3 (36) | 13.0 μg/m3 (53) | 53.0 | |
| April 4, 2021, noon | N/A | 4.4 ppb (5) | 33.5 ppb (32) | 31.0 ppb (30) | N/A | 1.0 ppb (2) | 2.0 ppb (2) | 0.61 ppb (7) | 33.7 μg/m3 (32) | 13.1 μg/m3 (54) | 54.0 | |
| April 4, 2021, 11 a.m. | N/A | 7.4 ppb (7) | 37.8 ppb (36) | 33.0 ppb (32) | N/A | 1.0 ppb (2) | 3.0 ppb (3) | 0.64 ppb (7) | 34.7 μg/m3 (33) | 12.2 μg/m3 (52) | 52.0 | |
| April 4, 2021, 10 a.m. | N/A | 9.9 ppb (10) | 41.5 ppb (40) | 34.0 ppb (33) | N/A | 1.0 ppb (2) | 2.0 ppb (2) | 0.67 ppb (8) | 41.6 μg/m3 (39) | 13.0 μg/m3 (53) | 53.0 | |
| April 4, 2021, 9 a.m. | N/A | 5.6 ppb (6) | 36.9 ppb (35) | 34.0 ppb (33) | N/A | 1.0 ppb (2) | 3.0 ppb (3) | 0.63 ppb (7) | 41.2 μg/m3 (39) | 12.3 μg/m3 (52) | 52.0 | |
| April 4, 2021, 8 a.m. | N/A | 0.7 ppb (1) | 24.6 ppb (24) | 27.0 ppb (26) | N/A | 1.0 ppb (2) | 13.0 ppb (13) | 0.45 ppb (6) | 40.8 μg/m3 (38) | 11.7 μg/m3 (49) | 49.0 | |
| April 4, 2021, 7 a.m. | N/A | 1.9 ppb (2) | 33.2 ppb (32) | 36.0 ppb (34) | N/A | 1.0 ppb (2) | 10.0 ppb (10) | 0.57 ppb (7) | 34.7 μg/m3 (33) | 10.8 μg/m3 (46) | 46.0 | |
| April 4, 2021, 6 a.m. | N/A | -0.3 ppb (0) | 16.6 ppb (16) | 20.0 ppb (19) | N/A | 1.0 ppb (2) | 32.0 ppb (30) | 0.3 ppb (4) | 31.2 μg/m3 (29) | 8.3 μg/m3 (35) | 35.0 | |
| April 4, 2021, 5 a.m. | N/A | -0.3 ppb (0) | 13.5 ppb (13) | 17.0 ppb (17) | N/A | 1.0 ppb (2) | 36.0 ppb (34) | 0.21 ppb (3) | 32.1 μg/m3 (30) | 7.9 μg/m3 (33) | 34.0 | |
| April 4, 2021, 4 a.m. | N/A | -0.3 ppb (0) | 16.6 ppb (16) | 20.0 ppb (19) | N/A | 1.0 ppb (2) | 36.0 ppb (34) | 0.27 ppb (4) | 27.5 μg/m3 (26) | 8.0 μg/m3 (34) | 34.0 | |
| April 4, 2021, 3 a.m. | N/A | -0.4 ppb (0) | 11.6 ppb (11) | 15.0 ppb (15) | N/A | 1.0 ppb (2) | 43.0 ppb (40) | 0.24 ppb (3) | 23.9 μg/m3 (23) | 7.2 μg/m3 (31) | 40.0 |