Calexico (Andrade Ave) CA, US: 32.67618, -115.48307
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| May 11, 2021, 2 p.m. | 40.1 ppb (38) | 15.4 ppb (15) | N/A | 25.0 ppb (24) | N/A | 1.0 ppb (2) | 16.0 ppb (15) | 0.44 ppb (5) | 91.0 μg/m3 (69) | 13.0 μg/m3 (53) | 69.0 | |
| May 11, 2021, 1 p.m. | 14.3 ppb (14) | 4.9 ppb (5) | N/A | 10.0 ppb (10) | N/A | 0.0 ppb (0) | 18.0 ppb (17) | 0.23 ppb (3) | 49.2 μg/m3 (46) | 13.0 μg/m3 (53) | 53.0 | |
| May 11, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 41.8 μg/m3 (39) | 8.0 μg/m3 (34) | 39.0 | |
| May 11, 2021, 11 a.m. | 8.1 ppb (8) | 2.3 ppb (3) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 26.0 ppb (25) | 0.17 ppb (3) | 34.6 μg/m3 (33) | 9.0 μg/m3 (38) | 38.0 | |
| May 11, 2021, 10 a.m. | 6.5 ppb (7) | 2.0 ppb (2) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 32.0 ppb (30) | 0.16 ppb (3) | 25.6 μg/m3 (24) | 7.0 μg/m3 (30) | 30.0 | |
| May 11, 2021, 9 a.m. | 6.4 ppb (7) | 2.0 ppb (2) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 34.0 ppb (32) | 0.15 ppb (2) | 24.4 μg/m3 (23) | 8.0 μg/m3 (34) | 34.0 | |
| May 11, 2021, 8 a.m. | 6.3 ppb (6) | 2.1 ppb (2) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 34.0 ppb (32) | 0.16 ppb (3) | 31.0 μg/m3 (29) | 9.0 μg/m3 (38) | 38.0 | |
| May 11, 2021, 7 a.m. | 6.9 ppb (7) | 2.4 ppb (3) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 32.0 ppb (30) | 0.17 ppb (3) | 33.1 μg/m3 (31) | 6.0 μg/m3 (25) | 31.0 | |
| May 11, 2021, 6 a.m. | 6.3 ppb (6) | 2.3 ppb (3) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 31.0 ppb (29) | 0.16 ppb (3) | 35.6 μg/m3 (33) | 5.0 μg/m3 (21) | 33.0 | |
| May 11, 2021, 5 a.m. | 11.2 ppb (11) | 3.2 ppb (4) | N/A | 8.0 ppb (8) | N/A | 0.0 ppb (0) | 34.0 ppb (32) | 0.21 ppb (3) | 32.1 μg/m3 (30) | 8.0 μg/m3 (34) | 34.0 | |
| May 11, 2021, 4 a.m. | 7.3 ppb (7) | 2.6 ppb (3) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 40.0 ppb (38) | 0.18 ppb (3) | 32.5 μg/m3 (31) | 9.0 μg/m3 (38) | 38.0 | |
| May 11, 2021, 3 a.m. | 6.5 ppb (7) | 2.3 ppb (3) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 42.0 ppb (39) | 0.16 ppb (3) | 41.6 μg/m3 (39) | 8.0 μg/m3 (34) | 39.0 | |
| May 11, 2021, 2 a.m. | 5.2 ppb (5) | 2.2 ppb (3) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 46.0 ppb (43) | 0.14 ppb (2) | 41.8 μg/m3 (39) | 5.0 μg/m3 (21) | 43.0 | |
| May 11, 2021, 1 a.m. | 5.7 ppb (6) | 2.1 ppb (2) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 54.0 ppb (50) | 0.15 ppb (2) | 35.7 μg/m3 (34) | 6.0 μg/m3 (25) | 50.0 | |
| May 11, 2021, midnight | 6.7 ppb (7) | 2.9 ppb (3) | N/A | 4.0 ppb (4) | N/A | 1.0 ppb (2) | 60.0 ppb (68) | 0.16 ppb (3) | 31.4 μg/m3 (30) | 7.0 μg/m3 (30) | 68.0 | |
| May 10, 2021, 11 p.m. | 7.3 ppb (7) | 3.4 ppb (4) | N/A | 4.0 ppb (4) | N/A | 1.0 ppb (2) | 62.0 ppb (74) | 0.15 ppb (2) | 30.2 μg/m3 (28) | 7.0 μg/m3 (30) | 74.0 | |
| May 10, 2021, 10 p.m. | 7.1 ppb (7) | 3.0 ppb (3) | N/A | 4.0 ppb (4) | N/A | 1.0 ppb (2) | 60.0 ppb (68) | 0.15 ppb (2) | 28.2 μg/m3 (27) | 3.0 μg/m3 (13) | 68.0 | |
| May 10, 2021, 9 p.m. | 6.6 ppb (7) | 3.3 ppb (4) | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (2) | 58.0 ppb (61) | 0.14 ppb (2) | 29.8 μg/m3 (28) | 5.0 μg/m3 (21) | 61.0 | |
| May 10, 2021, 8 p.m. | 9.9 ppb (10) | 4.3 ppb (5) | N/A | 6.0 ppb (6) | N/A | 1.0 ppb (2) | 61.0 ppb (71) | 0.17 ppb (3) | 33.5 μg/m3 (32) | 6.0 μg/m3 (25) | 71.0 | |
| May 10, 2021, 7 p.m. | 8.5 ppb (9) | 3.5 ppb (4) | N/A | 5.0 ppb (5) | N/A | 1.0 ppb (2) | 66.0 ppb (87) | 0.21 ppb (3) | 58.5 μg/m3 (53) | 5.0 μg/m3 (21) | 87.0 | |
| May 10, 2021, 6 p.m. | 9.1 ppb (9) | 3.7 ppb (4) | N/A | 5.0 ppb (5) | N/A | 1.0 ppb (2) | 61.0 ppb (71) | 0.18 ppb (3) | 40.2 μg/m3 (38) | 3.0 μg/m3 (13) | 71.0 | |
| May 10, 2021, 5 p.m. | 10.5 ppb (10) | 3.9 ppb (4) | N/A | 7.0 ppb (7) | N/A | 1.0 ppb (2) | 54.0 ppb (50) | 0.23 ppb (3) | 37.3 μg/m3 (35) | 5.0 μg/m3 (21) | 50.0 | |
| May 10, 2021, 4 p.m. | 13.9 ppb (14) | 4.9 ppb (5) | N/A | 9.0 ppb (9) | N/A | 1.0 ppb (2) | 47.0 ppb (44) | 0.23 ppb (3) | 55.8 μg/m3 (52) | 8.0 μg/m3 (34) | 52.0 | |
| May 10, 2021, 3 p.m. | 25.6 ppb (25) | 9.3 ppb (9) | N/A | 16.0 ppb (16) | N/A | 2.0 ppb (3) | 30.0 ppb (28) | 0.35 ppb (4) | 74.3 μg/m3 (61) | 13.0 μg/m3 (53) | 61.0 | |
| May 10, 2021, 2 p.m. | 24.7 ppb (24) | 8.8 ppb (9) | N/A | 16.0 ppb (16) | N/A | 1.0 ppb (2) | 24.0 ppb (23) | 0.32 ppb (4) | 52.7 μg/m3 (49) | 10.0 μg/m3 (42) | 49.0 | |
| May 10, 2021, 1 p.m. | 16.3 ppb (16) | 5.5 ppb (6) | N/A | 11.0 ppb (11) | N/A | 0.0 ppb (0) | 20.0 ppb (19) | 0.25 ppb (3) | 45.0 μg/m3 (42) | 7.0 μg/m3 (30) | 42.0 | |
| May 10, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 30.4 μg/m3 (29) | 3.0 μg/m3 (13) | 29.0 | |
| May 10, 2021, 11 a.m. | 13.1 ppb (13) | 4.7 ppb (5) | N/A | 8.0 ppb (8) | N/A | 0.0 ppb (0) | 19.0 ppb (18) | 0.23 ppb (3) | 28.0 μg/m3 (26) | 1.0 μg/m3 (5) | 26.0 | |
| May 10, 2021, 10 a.m. | 6.1 ppb (6) | 2.1 ppb (2) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 29.0 ppb (27) | 0.13 ppb (2) | 28.6 μg/m3 (27) | 4.0 μg/m3 (17) | 27.0 | |
| May 10, 2021, 9 a.m. | 5.4 ppb (6) | 2.2 ppb (3) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 30.0 ppb (28) | 0.13 ppb (2) | 24.6 μg/m3 (23) | 5.0 μg/m3 (21) | 28.0 | |
| May 10, 2021, 8 a.m. | 5.1 ppb (5) | 2.1 ppb (2) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 29.0 ppb (27) | 0.13 ppb (2) | 24.6 μg/m3 (23) | 4.0 μg/m3 (17) | 27.0 | |
| May 10, 2021, 7 a.m. | 6.0 ppb (6) | 2.7 ppb (3) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 29.0 ppb (27) | 0.15 ppb (2) | 40.2 μg/m3 (38) | 5.0 μg/m3 (21) | 38.0 | |
| May 10, 2021, 6 a.m. | 14.3 ppb (14) | 3.2 ppb (4) | N/A | 11.0 ppb (11) | N/A | 1.0 ppb (2) | 24.0 ppb (23) | 0.22 ppb (3) | 43.9 μg/m3 (41) | 6.0 μg/m3 (25) | 41.0 | |
| May 10, 2021, 5 a.m. | 14.6 ppb (14) | 3.5 ppb (4) | N/A | 11.0 ppb (11) | N/A | 1.0 ppb (2) | 29.0 ppb (27) | 0.21 ppb (3) | 53.3 μg/m3 (50) | 10.0 μg/m3 (42) | 50.0 | |
| May 10, 2021, 4 a.m. | 13.4 ppb (13) | 2.7 ppb (3) | N/A | 11.0 ppb (11) | N/A | 1.0 ppb (2) | 30.0 ppb (28) | 0.26 ppb (4) | 67.7 μg/m3 (58) | 11.0 μg/m3 (46) | 58.0 | |
| May 10, 2021, 3 a.m. | 10.7 ppb (11) | 2.2 ppb (3) | N/A | 9.0 ppb (9) | N/A | 1.0 ppb (2) | 36.0 ppb (34) | 0.16 ppb (3) | 61.1 μg/m3 (55) | 9.0 μg/m3 (38) | 55.0 | |
| May 10, 2021, 2 a.m. | 10.5 ppb (10) | 2.4 ppb (3) | N/A | 8.0 ppb (8) | N/A | 1.0 ppb (2) | 38.0 ppb (36) | 0.15 ppb (2) | 61.9 μg/m3 (55) | 9.0 μg/m3 (38) | 55.0 | |
| May 10, 2021, 1 a.m. | 8.9 ppb (9) | 2.7 ppb (3) | N/A | 6.0 ppb (6) | N/A | 1.0 ppb (2) | 41.0 ppb (38) | 0.14 ppb (2) | 88.4 μg/m3 (68) | 14.0 μg/m3 (55) | 68.0 | |
| May 10, 2021, midnight | 4.7 ppb (5) | 2.5 ppb (3) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 46.0 ppb (43) | 0.12 ppb (2) | 75.5 μg/m3 (62) | 10.0 μg/m3 (42) | 62.0 | |
| May 9, 2021, 11 p.m. | 4.6 ppb (5) | 2.6 ppb (3) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 50.0 ppb (47) | 0.12 ppb (2) | 47.1 μg/m3 (44) | 5.0 μg/m3 (21) | 47.0 | |
| May 9, 2021, 10 p.m. | 4.8 ppb (5) | 2.6 ppb (3) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 52.0 ppb (49) | 0.13 ppb (2) | 40.1 μg/m3 (38) | 7.0 μg/m3 (30) | 49.0 | |
| May 9, 2021, 9 p.m. | 5.9 ppb (6) | 3.0 ppb (3) | N/A | 3.0 ppb (3) | N/A | 2.0 ppb (3) | 52.0 ppb (49) | 0.14 ppb (2) | 45.2 μg/m3 (42) | 6.0 μg/m3 (25) | 49.0 | |
| May 9, 2021, 8 p.m. | 5.6 ppb (6) | 2.9 ppb (3) | N/A | 3.0 ppb (3) | N/A | 2.0 ppb (3) | 55.0 ppb (51) | 0.15 ppb (2) | 41.5 μg/m3 (39) | 6.0 μg/m3 (25) | 51.0 | |
| May 9, 2021, 7 p.m. | 6.7 ppb (7) | 3.3 ppb (4) | N/A | 3.0 ppb (3) | N/A | 3.0 ppb (5) | 59.0 ppb (65) | 0.18 ppb (3) | 45.5 μg/m3 (43) | 7.0 μg/m3 (30) | 65.0 | |
| May 9, 2021, 6 p.m. | 7.3 ppb (7) | 3.0 ppb (3) | N/A | 4.0 ppb (4) | N/A | 2.0 ppb (3) | 61.0 ppb (71) | 0.2 ppb (3) | 40.1 μg/m3 (38) | 7.0 μg/m3 (30) | 71.0 | |
| May 9, 2021, 5 p.m. | 8.3 ppb (8) | 3.5 ppb (4) | N/A | 5.0 ppb (5) | N/A | 2.0 ppb (3) | 53.0 ppb (50) | 0.21 ppb (3) | 36.3 μg/m3 (34) | 11.0 μg/m3 (46) | 50.0 | |
| May 9, 2021, 4 p.m. | 10.6 ppb (10) | 4.6 ppb (5) | N/A | 6.0 ppb (6) | N/A | 3.0 ppb (5) | 37.0 ppb (35) | 0.2 ppb (3) | 35.3 μg/m3 (33) | 10.0 μg/m3 (42) | 42.0 | |
| May 9, 2021, 3 p.m. | 9.1 ppb (9) | 4.1 ppb (4) | N/A | 5.0 ppb (5) | N/A | 2.0 ppb (3) | 29.0 ppb (27) | 0.2 ppb (3) | 32.6 μg/m3 (31) | 7.0 μg/m3 (30) | 31.0 | |
| May 9, 2021, 2 p.m. | 20.2 ppb (20) | 7.7 ppb (8) | N/A | 13.0 ppb (13) | N/A | 1.0 ppb (2) | 17.0 ppb (16) | 0.18 ppb (3) | 40.1 μg/m3 (38) | 17.0 μg/m3 (62) | 62.0 | |
| May 9, 2021, 1 p.m. | 14.8 ppb (14) | 4.8 ppb (5) | N/A | 10.0 ppb (10) | N/A | 0.0 ppb (0) | 15.0 ppb (14) | 0.22 ppb (3) | 36.9 μg/m3 (35) | 10.0 μg/m3 (42) | 42.0 | |
| May 9, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 23.7 μg/m3 (22) | 7.0 μg/m3 (30) | 30.0 | |
| May 9, 2021, 11 a.m. | 6.9 ppb (7) | 2.2 ppb (3) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 19.0 ppb (18) | 0.18 ppb (3) | 28.5 μg/m3 (27) | 8.0 μg/m3 (34) | 34.0 | |
| May 9, 2021, 10 a.m. | 5.8 ppb (6) | 2.2 ppb (3) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 17.0 ppb (16) | 0.2 ppb (3) | 25.3 μg/m3 (24) | 10.0 μg/m3 (42) | 42.0 | |
| May 9, 2021, 9 a.m. | 4.8 ppb (5) | 2.0 ppb (2) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 15.0 ppb (14) | 0.15 ppb (2) | 29.6 μg/m3 (28) | 8.0 μg/m3 (34) | 34.0 | |
| May 9, 2021, 8 a.m. | 8.1 ppb (8) | 2.6 ppb (3) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 14.0 ppb (13) | 0.18 ppb (3) | 41.2 μg/m3 (39) | 8.0 μg/m3 (34) | 39.0 | |
| May 9, 2021, 7 a.m. | 15.8 ppb (15) | 3.7 ppb (4) | N/A | 12.0 ppb (12) | N/A | 1.0 ppb (2) | 11.0 ppb (11) | 0.26 ppb (4) | 63.3 μg/m3 (56) | 8.0 μg/m3 (34) | 56.0 | |
| May 9, 2021, 6 a.m. | 19.1 ppb (19) | 2.9 ppb (3) | N/A | 16.0 ppb (16) | N/A | 1.0 ppb (2) | 12.0 ppb (12) | 0.34 ppb (4) | 75.3 μg/m3 (62) | 18.0 μg/m3 (64) | 64.0 | |
| May 9, 2021, 5 a.m. | 17.3 ppb (17) | 3.2 ppb (4) | N/A | 14.0 ppb (14) | N/A | 1.0 ppb (2) | 19.0 ppb (18) | 0.31 ppb (4) | 85.8 μg/m3 (67) | 24.0 μg/m3 (77) | 77.0 | |
| May 9, 2021, 4 a.m. | 21.7 ppb (21) | 4.0 ppb (4) | N/A | 18.0 ppb (17) | N/A | 1.0 ppb (2) | 22.0 ppb (21) | 0.42 ppb (5) | 78.6 μg/m3 (63) | 10.0 μg/m3 (42) | 63.0 | |
| May 9, 2021, 3 a.m. | 14.0 ppb (14) | 2.9 ppb (3) | N/A | 11.0 ppb (11) | N/A | 1.0 ppb (2) | 38.0 ppb (36) | 0.31 ppb (4) | 72.1 μg/m3 (60) | 9.0 μg/m3 (38) | 60.0 | |
| May 9, 2021, 2 a.m. | 7.2 ppb (7) | 2.8 ppb (3) | N/A | 4.0 ppb (4) | N/A | 1.0 ppb (2) | 56.0 ppb (55) | 0.19 ppb (3) | 36.0 μg/m3 (34) | 5.0 μg/m3 (21) | 55.0 | |
| May 9, 2021, 1 a.m. | 5.6 ppb (6) | 2.3 ppb (3) | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (2) | 65.0 ppb (84) | 0.14 ppb (2) | 30.9 μg/m3 (29) | 5.0 μg/m3 (21) | 84.0 | |
| May 9, 2021, midnight | 6.1 ppb (6) | 2.8 ppb (3) | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (2) | 66.0 ppb (87) | 0.17 ppb (3) | 30.0 μg/m3 (28) | 7.0 μg/m3 (30) | 87.0 | |
| May 8, 2021, 11 p.m. | 6.8 ppb (7) | 3.1 ppb (3) | N/A | 4.0 ppb (4) | N/A | 1.0 ppb (2) | 65.0 ppb (84) | 0.14 ppb (2) | 27.8 μg/m3 (26) | 4.0 μg/m3 (17) | 84.0 | |
| May 8, 2021, 10 p.m. | 6.0 ppb (6) | 3.5 ppb (4) | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (2) | 63.0 ppb (78) | 0.13 ppb (2) | 25.9 μg/m3 (24) | N/A | 78.0 | |
| May 8, 2021, 9 p.m. | 7.6 ppb (8) | 3.2 ppb (4) | N/A | 4.0 ppb (4) | N/A | 1.0 ppb (2) | 62.0 ppb (74) | 0.15 ppb (2) | 19.4 μg/m3 (18) | 3.0 μg/m3 (13) | 74.0 | |
| May 8, 2021, 8 p.m. | 5.9 ppb (6) | 2.8 ppb (3) | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (2) | 64.0 ppb (81) | 0.14 ppb (2) | 21.6 μg/m3 (20) | 3.0 μg/m3 (13) | 81.0 | |
| May 8, 2021, 7 p.m. | 7.6 ppb (8) | 3.3 ppb (4) | N/A | 4.0 ppb (4) | N/A | 1.0 ppb (2) | 59.0 ppb (65) | 0.14 ppb (2) | 28.3 μg/m3 (27) | 3.0 μg/m3 (13) | 65.0 | |
| May 8, 2021, 6 p.m. | 8.3 ppb (8) | 3.7 ppb (4) | N/A | 5.0 ppb (5) | N/A | 1.0 ppb (2) | 51.0 ppb (48) | 0.15 ppb (2) | 19.8 μg/m3 (19) | 5.0 μg/m3 (21) | 48.0 | |
| May 8, 2021, 5 p.m. | 6.3 ppb (6) | 3.1 ppb (3) | N/A | 3.0 ppb (3) | N/A | 2.0 ppb (3) | 48.0 ppb (45) | 0.17 ppb (3) | 28.6 μg/m3 (27) | 7.0 μg/m3 (30) | 45.0 | |
| May 8, 2021, 4 p.m. | 11.3 ppb (11) | 4.9 ppb (5) | N/A | 6.0 ppb (6) | N/A | 2.0 ppb (3) | 36.0 ppb (34) | 0.19 ppb (3) | 40.7 μg/m3 (38) | 9.0 μg/m3 (38) | 38.0 | |
| May 8, 2021, 3 p.m. | 38.2 ppb (37) | 17.9 ppb (17) | N/A | 20.0 ppb (19) | N/A | 3.0 ppb (5) | 18.0 ppb (17) | 0.45 ppb (6) | 79.0 μg/m3 (63) | 14.0 μg/m3 (55) | 63.0 | |
| May 8, 2021, 2 p.m. | 23.3 ppb (22) | 10.2 ppb (10) | N/A | 13.0 ppb (13) | N/A | 1.0 ppb (2) | 14.0 ppb (13) | 0.31 ppb (4) | 167.0 μg/m3 (107) | 17.0 μg/m3 (62) | 107.0 | |
| May 8, 2021, 1 p.m. | 15.3 ppb (15) | 5.8 ppb (6) | N/A | 10.0 ppb (10) | N/A | 1.0 ppb (2) | 12.0 ppb (12) | 0.24 ppb (3) | 73.1 μg/m3 (60) | 11.0 μg/m3 (46) | 60.0 | |
| May 8, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 46.5 μg/m3 (44) | 13.0 μg/m3 (53) | 53.0 | |
| May 8, 2021, 11 a.m. | 15.0 ppb (15) | 5.3 ppb (5) | N/A | 10.0 ppb (10) | N/A | 0.0 ppb (0) | 8.0 ppb (8) | 0.27 ppb (4) | 61.5 μg/m3 (55) | 11.0 μg/m3 (46) | 55.0 | |
| May 8, 2021, 10 a.m. | 14.2 ppb (14) | 3.5 ppb (4) | N/A | 11.0 ppb (11) | N/A | 0.0 ppb (0) | 8.0 ppb (8) | 0.27 ppb (4) | 50.5 μg/m3 (47) | 14.0 μg/m3 (55) | 55.0 | |
| May 8, 2021, 9 a.m. | 16.0 ppb (16) | 2.8 ppb (3) | N/A | 13.0 ppb (13) | N/A | 0.0 ppb (0) | 10.0 ppb (10) | 0.4 ppb (5) | 41.3 μg/m3 (39) | 13.0 μg/m3 (53) | 53.0 | |
| May 8, 2021, 8 a.m. | 10.9 ppb (11) | 2.7 ppb (3) | N/A | 8.0 ppb (8) | N/A | 0.0 ppb (0) | 22.0 ppb (21) | 0.28 ppb (4) | 41.1 μg/m3 (39) | 11.0 μg/m3 (46) | 46.0 | |
| May 8, 2021, 7 a.m. | 5.8 ppb (6) | 2.1 ppb (2) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 40.0 ppb (38) | 0.14 ppb (2) | 26.4 μg/m3 (25) | 5.0 μg/m3 (21) | 38.0 | |
| May 8, 2021, 6 a.m. | 6.0 ppb (6) | 2.4 ppb (3) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 44.0 ppb (41) | 0.13 ppb (2) | 32.3 μg/m3 (30) | 5.0 μg/m3 (21) | 41.0 | |
| May 8, 2021, 5 a.m. | 7.3 ppb (7) | 3.1 ppb (3) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 46.0 ppb (43) | 0.17 ppb (3) | 36.3 μg/m3 (34) | 7.0 μg/m3 (30) | 43.0 | |
| May 8, 2021, 4 a.m. | 7.9 ppb (8) | 2.9 ppb (3) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 48.0 ppb (45) | 0.19 ppb (3) | 31.7 μg/m3 (30) | 5.0 μg/m3 (21) | 45.0 | |
| May 8, 2021, 3 a.m. | 7.0 ppb (7) | 2.3 ppb (3) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 48.0 ppb (45) | 0.16 ppb (3) | 69.5 μg/m3 (59) | 4.0 μg/m3 (17) | 59.0 | |
| May 8, 2021, 2 a.m. | 9.0 ppb (9) | 3.0 ppb (3) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 48.0 ppb (45) | 0.19 ppb (3) | 38.2 μg/m3 (36) | 3.0 μg/m3 (13) | 45.0 | |
| May 8, 2021, 1 a.m. | 6.3 ppb (6) | 2.4 ppb (3) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 57.0 ppb (58) | 0.15 ppb (2) | 58.6 μg/m3 (53) | 5.0 μg/m3 (21) | 58.0 | |
| May 8, 2021, midnight | 7.7 ppb (8) | 3.0 ppb (3) | N/A | 5.0 ppb (5) | N/A | 1.0 ppb (2) | 62.0 ppb (74) | 0.16 ppb (3) | 52.2 μg/m3 (49) | 6.0 μg/m3 (25) | 74.0 | |
| May 7, 2021, 11 p.m. | 9.2 ppb (9) | 4.1 ppb (4) | N/A | 5.0 ppb (5) | N/A | 2.0 ppb (3) | 63.0 ppb (78) | 0.15 ppb (2) | 51.5 μg/m3 (48) | 8.0 μg/m3 (34) | 78.0 | |
| May 7, 2021, 10 p.m. | 7.4 ppb (7) | 2.8 ppb (3) | N/A | 5.0 ppb (5) | N/A | 2.0 ppb (3) | 65.0 ppb (84) | 0.15 ppb (2) | 40.7 μg/m3 (38) | 5.0 μg/m3 (21) | 84.0 | |
| May 7, 2021, 9 p.m. | 10.6 ppb (10) | 3.9 ppb (4) | N/A | 7.0 ppb (7) | N/A | 2.0 ppb (3) | 72.0 ppb (102) | 0.23 ppb (3) | 57.1 μg/m3 (53) | 6.0 μg/m3 (25) | 102.0 | |
| May 7, 2021, 8 p.m. | 12.8 ppb (13) | 4.4 ppb (5) | N/A | 8.0 ppb (8) | N/A | 2.0 ppb (3) | 72.0 ppb (102) | 0.2 ppb (3) | 44.8 μg/m3 (42) | 6.0 μg/m3 (25) | 102.0 | |
| May 7, 2021, 7 p.m. | 10.2 ppb (10) | 4.0 ppb (4) | N/A | 6.0 ppb (6) | N/A | 2.0 ppb (3) | 65.0 ppb (84) | 0.21 ppb (3) | 44.6 μg/m3 (42) | 5.0 μg/m3 (21) | 84.0 | |
| May 7, 2021, 6 p.m. | 14.9 ppb (15) | 5.3 ppb (5) | N/A | 10.0 ppb (10) | N/A | 1.0 ppb (2) | 57.0 ppb (58) | 0.22 ppb (3) | 55.5 μg/m3 (52) | 6.0 μg/m3 (25) | 58.0 | |
| May 7, 2021, 5 p.m. | 12.9 ppb (13) | 4.5 ppb (5) | N/A | 9.0 ppb (9) | N/A | 1.0 ppb (2) | 49.0 ppb (46) | 0.24 ppb (3) | 54.1 μg/m3 (51) | 8.0 μg/m3 (34) | 51.0 | |
| May 7, 2021, 4 p.m. | 14.4 ppb (14) | 5.5 ppb (6) | N/A | 9.0 ppb (9) | N/A | 1.0 ppb (2) | 38.0 ppb (36) | 0.26 ppb (4) | 59.1 μg/m3 (54) | 11.0 μg/m3 (46) | 54.0 | |
| May 7, 2021, 3 p.m. | 21.2 ppb (20) | 9.3 ppb (9) | N/A | 12.0 ppb (12) | N/A | 2.0 ppb (3) | 23.0 ppb (22) | 0.33 ppb (4) | 78.2 μg/m3 (63) | N/A | 63.0 | |
| May 7, 2021, 2 p.m. | 32.8 ppb (31) | 14.0 ppb (14) | N/A | 19.0 ppb (18) | N/A | 2.0 ppb (3) | 13.0 ppb (13) | 0.41 ppb (5) | 70.4 μg/m3 (59) | N/A | 59.0 | |
| May 7, 2021, 1 p.m. | 24.6 ppb (24) | 8.4 ppb (8) | N/A | 16.0 ppb (16) | N/A | 1.0 ppb (2) | 11.0 ppb (11) | 0.29 ppb (4) | 44.5 μg/m3 (42) | N/A | 42.0 | |
| May 7, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 μg/m3 (29) | N/A | 29.0 | |
| May 7, 2021, 11 a.m. | 8.0 ppb (8) | 2.4 ppb (3) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 18.0 ppb (17) | 0.16 ppb (3) | 27.6 μg/m3 (26) | N/A | 26.0 | |
| May 7, 2021, 10 a.m. | 11.7 ppb (12) | 3.1 ppb (3) | N/A | 9.0 ppb (9) | N/A | 0.0 ppb (0) | 14.0 ppb (13) | 0.2 ppb (3) | 31.7 μg/m3 (30) | N/A | 30.0 | |
| May 7, 2021, 9 a.m. | 10.5 ppb (10) | 3.0 ppb (3) | N/A | 8.0 ppb (8) | N/A | 0.0 ppb (0) | 13.0 ppb (13) | 0.18 ppb (3) | 32.7 μg/m3 (31) | N/A | 31.0 | |
| May 7, 2021, 8 a.m. | 10.7 ppb (11) | 2.4 ppb (3) | N/A | 8.0 ppb (8) | N/A | 0.0 ppb (0) | 17.0 ppb (16) | 0.26 ppb (4) | 39.3 μg/m3 (37) | N/A | 37.0 | |
| May 7, 2021, 7 a.m. | 8.8 ppb (9) | 2.3 ppb (3) | N/A | 7.0 ppb (7) | N/A | 0.0 ppb (0) | 20.0 ppb (19) | 0.18 ppb (3) | 39.1 μg/m3 (37) | N/A | 37.0 | |
| May 7, 2021, 6 a.m. | 10.7 ppb (11) | 2.5 ppb (3) | N/A | 8.0 ppb (8) | N/A | 0.0 ppb (0) | 19.0 ppb (18) | 0.23 ppb (3) | 51.1 μg/m3 (48) | N/A | 48.0 | |
| May 7, 2021, 5 a.m. | 15.3 ppb (15) | 2.8 ppb (3) | N/A | 13.0 ppb (13) | N/A | 1.0 ppb (2) | 19.0 ppb (18) | 0.2 ppb (3) | 44.5 μg/m3 (42) | 10.0 μg/m3 (42) | 42.0 | |
| May 7, 2021, 4 a.m. | 15.0 ppb (15) | 2.9 ppb (3) | N/A | 12.0 ppb (12) | N/A | 1.0 ppb (2) | 24.0 ppb (23) | 0.2 ppb (3) | 61.6 μg/m3 (55) | 10.0 μg/m3 (42) | 55.0 | |
| May 7, 2021, 3 a.m. | 11.1 ppb (11) | 2.5 ppb (3) | N/A | 9.0 ppb (9) | N/A | 1.0 ppb (2) | 31.0 ppb (29) | 0.18 ppb (3) | 65.0 μg/m3 (56) | 11.0 μg/m3 (46) | 56.0 | |
| May 7, 2021, 2 a.m. | 10.2 ppb (10) | 2.7 ppb (3) | N/A | 8.0 ppb (8) | N/A | 1.0 ppb (2) | 33.0 ppb (31) | 0.17 ppb (3) | 105.0 μg/m3 (76) | 3.0 μg/m3 (13) | 76.0 | |
| May 7, 2021, 1 a.m. | 7.6 ppb (8) | 2.8 ppb (3) | N/A | 5.0 ppb (5) | N/A | 1.0 ppb (2) | 44.0 ppb (41) | 0.15 ppb (2) | 76.5 μg/m3 (62) | 1.0 μg/m3 (5) | 62.0 | |
| May 7, 2021, midnight | 6.6 ppb (7) | 3.2 ppb (4) | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (2) | 47.0 ppb (44) | 0.13 ppb (2) | 63.8 μg/m3 (56) | 4.0 μg/m3 (17) | 56.0 | |
| May 6, 2021, 11 p.m. | 5.6 ppb (6) | 3.2 ppb (4) | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (2) | 50.0 ppb (47) | 0.12 ppb (2) | 52.1 μg/m3 (49) | 6.0 μg/m3 (25) | 49.0 | |
| May 6, 2021, 10 p.m. | 6.7 ppb (7) | 3.4 ppb (4) | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (2) | 51.0 ppb (48) | 0.13 ppb (2) | 55.7 μg/m3 (52) | 5.0 μg/m3 (21) | 52.0 | |
| May 6, 2021, 9 p.m. | 7.9 ppb (8) | 3.7 ppb (4) | N/A | 4.0 ppb (4) | N/A | 1.0 ppb (2) | 53.0 ppb (50) | 0.14 ppb (2) | 49.2 μg/m3 (46) | 5.0 μg/m3 (21) | 50.0 | |
| May 6, 2021, 8 p.m. | 8.5 ppb (9) | 3.7 ppb (4) | N/A | 5.0 ppb (5) | N/A | 2.0 ppb (3) | 57.0 ppb (58) | 0.15 ppb (2) | 49.9 μg/m3 (47) | 4.0 μg/m3 (17) | 58.0 | |
| May 6, 2021, 7 p.m. | 7.9 ppb (8) | 3.7 ppb (4) | N/A | 4.0 ppb (4) | N/A | 2.0 ppb (3) | 56.0 ppb (55) | 0.16 ppb (3) | 41.7 μg/m3 (39) | 5.0 μg/m3 (21) | 55.0 | |
| May 6, 2021, 6 p.m. | 12.4 ppb (12) | 5.0 ppb (5) | N/A | 8.0 ppb (8) | N/A | 3.0 ppb (5) | 50.0 ppb (47) | 0.2 ppb (3) | 57.8 μg/m3 (53) | 7.0 μg/m3 (30) | 53.0 | |
| May 6, 2021, 5 p.m. | 17.4 ppb (17) | 6.4 ppb (7) | N/A | 11.0 ppb (11) | N/A | 1.0 ppb (2) | 48.0 ppb (45) | 0.28 ppb (4) | 52.1 μg/m3 (49) | 8.0 μg/m3 (34) | 49.0 | |
| May 6, 2021, 4 p.m. | 23.3 ppb (22) | 8.8 ppb (9) | N/A | 15.0 ppb (15) | N/A | 3.0 ppb (5) | 32.0 ppb (30) | 0.3 ppb (4) | 71.0 μg/m3 (59) | 9.0 μg/m3 (38) | 59.0 | |
| May 6, 2021, 3 p.m. | 31.6 ppb (30) | 13.3 ppb (13) | N/A | 18.0 ppb (17) | N/A | 3.0 ppb (5) | 20.0 ppb (19) | 0.34 ppb (4) | 113.0 μg/m3 (80) | 8.0 μg/m3 (34) | 80.0 | |
| May 6, 2021, 2 p.m. | 24.2 ppb (23) | 9.2 ppb (9) | N/A | 15.0 ppb (15) | N/A | 1.0 ppb (2) | 19.0 ppb (18) | 0.29 ppb (4) | 65.7 μg/m3 (57) | 8.0 μg/m3 (34) | 57.0 | |
| May 6, 2021, 1 p.m. | 15.1 ppb (15) | 5.3 ppb (5) | N/A | 10.0 ppb (10) | N/A | 0.0 ppb (0) | 14.0 ppb (13) | 0.23 ppb (3) | 68.8 μg/m3 (58) | 11.0 μg/m3 (46) | 58.0 | |
| May 6, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 55.7 μg/m3 (52) | 12.0 μg/m3 (50) | 52.0 | |
| May 6, 2021, 11 a.m. | 9.8 ppb (10) | 2.3 ppb (3) | N/A | 8.0 ppb (8) | N/A | 0.0 ppb (0) | 11.0 ppb (11) | 0.2 ppb (3) | 43.7 μg/m3 (41) | 8.0 μg/m3 (34) | 41.0 | |
| May 6, 2021, 10 a.m. | 18.0 ppb (17) | 4.7 ppb (5) | N/A | 13.0 ppb (13) | N/A | 1.0 ppb (2) | 11.0 ppb (11) | 0.29 ppb (4) | 55.9 μg/m3 (52) | 10.0 μg/m3 (42) | 52.0 | |
| May 6, 2021, 9 a.m. | 19.7 ppb (19) | 2.8 ppb (3) | N/A | 17.0 ppb (17) | N/A | 2.0 ppb (3) | 15.0 ppb (14) | 0.21 ppb (3) | 39.5 μg/m3 (37) | 12.0 μg/m3 (50) | 50.0 | |
| May 6, 2021, 8 a.m. | 20.9 ppb (20) | 3.8 ppb (4) | N/A | 17.0 ppb (17) | N/A | 1.0 ppb (2) | 12.0 ppb (12) | 0.28 ppb (4) | 79.4 μg/m3 (64) | 16.0 μg/m3 (60) | 64.0 | |
| May 6, 2021, 7 a.m. | 22.1 ppb (21) | 3.5 ppb (4) | N/A | 19.0 ppb (18) | N/A | 0.0 ppb (0) | 7.0 ppb (7) | 0.38 ppb (5) | 162.8 μg/m3 (105) | 13.0 μg/m3 (53) | 105.0 | |
| May 6, 2021, 6 a.m. | 34.2 ppb (33) | 7.5 ppb (8) | N/A | 27.0 ppb (26) | N/A | 1.0 ppb (2) | 4.0 ppb (4) | 0.55 ppb (7) | 89.4 μg/m3 (69) | 14.0 μg/m3 (55) | 69.0 | |
| May 6, 2021, 5 a.m. | 31.6 ppb (30) | 6.6 ppb (7) | N/A | 25.0 ppb (24) | N/A | 1.0 ppb (2) | 11.0 ppb (11) | 0.52 ppb (6) | 102.5 μg/m3 (75) | 11.0 μg/m3 (46) | 75.0 | |
| May 6, 2021, 4 a.m. | 26.3 ppb (25) | 4.2 ppb (4) | N/A | 22.0 ppb (21) | N/A | 2.0 ppb (3) | 18.0 ppb (17) | 0.33 ppb (4) | 79.7 μg/m3 (64) | 12.0 μg/m3 (50) | 64.0 | |
| May 6, 2021, 3 a.m. | 23.5 ppb (23) | 3.8 ppb (4) | N/A | 20.0 ppb (19) | N/A | 1.0 ppb (2) | 24.0 ppb (23) | 0.27 ppb (4) | 84.4 μg/m3 (66) | 8.0 μg/m3 (34) | 66.0 | |
| May 6, 2021, 2 a.m. | 10.6 ppb (10) | 2.9 ppb (3) | N/A | 8.0 ppb (8) | N/A | 0.0 ppb (0) | 41.0 ppb (38) | 0.24 ppb (3) | 75.3 μg/m3 (62) | 4.0 μg/m3 (17) | 62.0 | |
| May 6, 2021, 1 a.m. | 6.1 ppb (6) | 2.8 ppb (3) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 49.0 ppb (46) | 0.14 ppb (2) | 39.6 μg/m3 (37) | 3.0 μg/m3 (13) | 46.0 | |
| May 6, 2021, midnight | 6.2 ppb (6) | 2.8 ppb (3) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 52.0 ppb (49) | 0.13 ppb (2) | 51.2 μg/m3 (48) | 6.0 μg/m3 (25) | 49.0 | |
| May 5, 2021, 11 p.m. | 5.0 ppb (5) | 3.0 ppb (3) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 51.0 ppb (48) | 0.12 ppb (2) | 48.1 μg/m3 (45) | 6.0 μg/m3 (25) | 48.0 | |
| May 5, 2021, 10 p.m. | 5.2 ppb (5) | 3.4 ppb (4) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 53.0 ppb (50) | 0.13 ppb (2) | 59.7 μg/m3 (54) | 5.0 μg/m3 (21) | 54.0 | |
| May 5, 2021, 9 p.m. | 6.1 ppb (6) | 3.5 ppb (4) | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (2) | 54.0 ppb (50) | 0.14 ppb (2) | 59.1 μg/m3 (54) | 4.0 μg/m3 (17) | 54.0 | |
| May 5, 2021, 8 p.m. | 8.8 ppb (9) | 4.6 ppb (5) | N/A | 4.0 ppb (4) | N/A | 1.0 ppb (2) | 57.0 ppb (58) | 0.15 ppb (2) | 56.0 μg/m3 (52) | 7.0 μg/m3 (30) | 58.0 | |
| May 5, 2021, 7 p.m. | 12.0 ppb (12) | 3.8 ppb (4) | N/A | 8.0 ppb (8) | N/A | 2.0 ppb (3) | 66.0 ppb (87) | 0.24 ppb (3) | 56.9 μg/m3 (52) | 13.0 μg/m3 (53) | 87.0 | |
| May 5, 2021, 6 p.m. | 18.8 ppb (18) | 5.7 ppb (6) | N/A | 13.0 ppb (13) | N/A | 2.0 ppb (3) | 56.0 ppb (55) | 0.3 ppb (4) | 61.0 μg/m3 (54) | 10.0 μg/m3 (42) | 55.0 | |
| May 5, 2021, 5 p.m. | 29.6 ppb (28) | 11.1 ppb (11) | N/A | 19.0 ppb (18) | N/A | 2.0 ppb (3) | 42.0 ppb (39) | 0.35 ppb (4) | 86.9 μg/m3 (67) | 12.0 μg/m3 (50) | 67.0 | |
| May 5, 2021, 4 p.m. | 32.1 ppb (31) | 13.0 ppb (13) | N/A | 19.0 ppb (18) | N/A | 2.0 ppb (3) | 28.0 ppb (26) | 0.34 ppb (4) | 94.6 μg/m3 (71) | 18.0 μg/m3 (64) | 71.0 | |
| May 5, 2021, 3 p.m. | 26.1 ppb (25) | 10.3 ppb (10) | N/A | 16.0 ppb (16) | N/A | 2.0 ppb (3) | 25.0 ppb (24) | 0.29 ppb (4) | 72.2 μg/m3 (60) | 11.0 μg/m3 (46) | 60.0 | |
| May 5, 2021, 2 p.m. | 23.4 ppb (23) | 8.1 ppb (8) | N/A | 15.0 ppb (15) | N/A | 1.0 ppb (2) | 24.0 ppb (23) | 0.3 ppb (4) | 75.0 μg/m3 (61) | 8.0 μg/m3 (34) | 61.0 | |
| May 5, 2021, 1 p.m. | 23.9 ppb (23) | 6.3 ppb (6) | N/A | 18.0 ppb (17) | N/A | 0.0 ppb (0) | 15.0 ppb (14) | 0.32 ppb (4) | 53.5 μg/m3 (50) | 8.0 μg/m3 (34) | 50.0 | |
| May 5, 2021, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 184.6 μg/m3 (116) | 20.0 μg/m3 (68) | 116.0 | |
| May 5, 2021, 11 a.m. | 6.0 ppb (6) | 2.1 ppb (2) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 25.0 ppb (24) | 0.15 ppb (2) | 30.1 μg/m3 (28) | 7.0 μg/m3 (30) | 30.0 | |
| May 5, 2021, 10 a.m. | 6.7 ppb (7) | 2.2 ppb (3) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 17.0 ppb (16) | 0.15 ppb (2) | 40.1 μg/m3 (38) | 11.0 μg/m3 (46) | 46.0 | |
| May 5, 2021, 9 a.m. | 13.7 ppb (13) | 3.3 ppb (4) | N/A | 10.0 ppb (10) | N/A | 0.0 ppb (0) | 15.0 ppb (14) | 0.18 ppb (3) | 41.8 μg/m3 (39) | 6.0 μg/m3 (25) | 39.0 | |
| May 5, 2021, 8 a.m. | 14.8 ppb (14) | 2.6 ppb (3) | N/A | 12.0 ppb (12) | N/A | 1.0 ppb (2) | 13.0 ppb (13) | 0.24 ppb (3) | 69.4 μg/m3 (59) | 10.0 μg/m3 (42) | 59.0 | |
| May 5, 2021, 7 a.m. | 16.5 ppb (16) | 2.3 ppb (3) | N/A | 14.0 ppb (14) | N/A | 0.0 ppb (0) | 20.0 ppb (19) | 0.28 ppb (4) | 96.2 μg/m3 (72) | 12.0 μg/m3 (50) | 72.0 | |
| May 5, 2021, 6 a.m. | 29.1 ppb (28) | 2.8 ppb (3) | N/A | 26.0 ppb (25) | N/A | 1.0 ppb (2) | 13.0 ppb (13) | 0.37 ppb (5) | 87.2 μg/m3 (67) | 9.0 μg/m3 (38) | 67.0 | |
| May 5, 2021, 5 a.m. | 21.0 ppb (20) | 2.5 ppb (3) | N/A | 19.0 ppb (18) | N/A | 2.0 ppb (3) | 28.0 ppb (26) | 0.2 ppb (3) | 37.3 μg/m3 (35) | 5.0 μg/m3 (21) | 35.0 | |
| May 5, 2021, 4 a.m. | 12.0 ppb (12) | 2.4 ppb (3) | N/A | 10.0 ppb (10) | N/A | 1.0 ppb (2) | 41.0 ppb (38) | 0.18 ppb (3) | 35.6 μg/m3 (33) | 3.0 μg/m3 (13) | 38.0 | |
| May 5, 2021, 3 a.m. | 12.9 ppb (13) | 2.3 ppb (3) | N/A | 11.0 ppb (11) | N/A | 1.0 ppb (2) | 39.0 ppb (37) | 0.21 ppb (3) | 60.7 μg/m3 (54) | 5.0 μg/m3 (21) | 54.0 | |
| May 5, 2021, 2 a.m. | 11.8 ppb (12) | 2.6 ppb (3) | N/A | 9.0 ppb (9) | N/A | 1.0 ppb (2) | 46.0 ppb (43) | 0.2 ppb (3) | 53.2 μg/m3 (50) | 6.0 μg/m3 (25) | 50.0 | |
| May 5, 2021, 1 a.m. | 8.2 ppb (8) | 3.0 ppb (3) | N/A | 5.0 ppb (5) | N/A | 1.0 ppb (2) | 67.0 ppb (91) | 0.19 ppb (3) | 51.0 μg/m3 (48) | 6.0 μg/m3 (25) | 91.0 | |
| May 5, 2021, midnight | 11.3 ppb (11) | 3.4 ppb (4) | N/A | 8.0 ppb (8) | N/A | 1.0 ppb (2) | 82.0 ppb (107) | 0.2 ppb (3) | 39.8 μg/m3 (37) | 7.0 μg/m3 (30) | 107.0 | |
| May 4, 2021, 11 p.m. | 14.1 ppb (14) | 5.3 ppb (5) | N/A | 9.0 ppb (9) | N/A | 1.0 ppb (2) | 78.0 ppb (105) | 0.23 ppb (3) | 35.2 μg/m3 (33) | 10.0 μg/m3 (42) | 105.0 | |
| May 4, 2021, 10 p.m. | 9.9 ppb (10) | 4.0 ppb (4) | N/A | 6.0 ppb (6) | N/A | 1.0 ppb (2) | 76.0 ppb (104) | 0.44 ppb (5) | 28.6 μg/m3 (27) | 8.0 μg/m3 (34) | 104.0 | |
| May 4, 2021, 9 p.m. | 9.6 ppb (10) | 4.6 ppb (5) | N/A | 5.0 ppb (5) | N/A | 1.0 ppb (2) | 63.0 ppb (78) | 0.38 ppb (5) | 27.9 μg/m3 (26) | 5.0 μg/m3 (21) | 78.0 | |
| May 4, 2021, 8 p.m. | 9.2 ppb (9) | 3.8 ppb (4) | N/A | 5.0 ppb (5) | N/A | 1.0 ppb (2) | 61.0 ppb (71) | 0.48 ppb (6) | 30.4 μg/m3 (29) | 6.0 μg/m3 (25) | 71.0 | |
| May 4, 2021, 7 p.m. | 8.0 ppb (8) | 3.4 ppb (4) | N/A | 4.0 ppb (4) | N/A | 1.0 ppb (2) | 60.0 ppb (68) | 0.34 ppb (4) | 26.0 μg/m3 (25) | 8.0 μg/m3 (34) | 68.0 | |
| May 4, 2021, 6 p.m. | 9.6 ppb (10) | 3.9 ppb (4) | N/A | 6.0 ppb (6) | N/A | 2.0 ppb (3) | 59.0 ppb (65) | 0.26 ppb (4) | 38.8 μg/m3 (36) | 9.0 μg/m3 (38) | 65.0 | |
| May 4, 2021, 5 p.m. | 9.7 ppb (10) | 3.7 ppb (4) | N/A | 6.0 ppb (6) | N/A | 1.0 ppb (2) | 55.0 ppb (51) | 0.22 ppb (3) | 86.1 μg/m3 (67) | 8.0 μg/m3 (34) | 67.0 | |
| May 4, 2021, 4 p.m. | 14.1 ppb (14) | 5.0 ppb (5) | N/A | 9.0 ppb (9) | N/A | 1.0 ppb (2) | 46.0 ppb (43) | 0.24 ppb (3) | 37.6 μg/m3 (35) | 9.0 μg/m3 (38) | 43.0 | |
| May 4, 2021, 3 p.m. | 22.8 ppb (22) | 8.8 ppb (9) | N/A | 14.0 ppb (14) | N/A | 1.0 ppb (2) | 33.0 ppb (31) | 0.44 ppb (5) | 56.8 μg/m3 (52) | 12.0 μg/m3 (50) | 52.0 |