Tulsa (N Peoria Ave) OK, US: 36.206699, -95.976402
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 7, 2021, 2 p.m. | 8.5 ppb (9) | 0.7 ppb (1) | 8.3 ppb (8) | 8.0 ppb (8) | 7.0 ppb (7) | 0.0 ppb (0) | 32.0 ppb (30) | 0.27 ppb (4) | 35.0 μg/m3 (33) | 26.3 μg/m3 (81) | 81.0 | |
| March 7, 2021, 1 p.m. | 11.9 ppb (12) | 0.9 ppb (1) | 11.4 ppb (11) | 11.0 ppb (11) | 10.5 ppb (10) | 0.0 ppb (0) | 23.0 ppb (22) | 0.31 ppb (4) | 49.0 μg/m3 (46) | 38.5 μg/m3 (109) | 109.0 | |
| March 7, 2021, noon | 7.0 ppb (7) | 0.1 ppb (1) | 7.5 ppb (8) | 7.0 ppb (7) | 7.5 ppb (8) | 0.0 ppb (0) | 29.0 ppb (27) | 0.28 ppb (4) | 39.0 μg/m3 (37) | 30.7 μg/m3 (91) | 91.0 | |
| March 7, 2021, 11 a.m. | 13.2 ppb (13) | 0.1 ppb (1) | 12.7 ppb (12) | 13.0 ppb (13) | 12.6 ppb (12) | 0.0 ppb (0) | 21.0 ppb (20) | 0.3 ppb (4) | 40.0 μg/m3 (38) | 31.9 μg/m3 (93) | 93.0 | |
| March 7, 2021, 10 a.m. | 14.4 ppb (14) | 0.2 ppb (1) | 15.3 ppb (15) | 14.0 ppb (14) | 15.2 ppb (15) | 0.0 ppb (0) | 20.0 ppb (19) | 0.31 ppb (4) | 36.0 μg/m3 (34) | 27.1 μg/m3 (83) | 83.0 | |
| March 7, 2021, 9 a.m. | 12.9 ppb (13) | 0.2 ppb (1) | 12.2 ppb (12) | 13.0 ppb (13) | 12.1 ppb (12) | 0.0 ppb (0) | 22.0 ppb (21) | 0.3 ppb (4) | 29.0 μg/m3 (27) | 20.3 μg/m3 (69) | 69.0 | |
| March 7, 2021, 8 a.m. | 15.1 ppb (15) | 0.2 ppb (1) | 14.7 ppb (14) | 15.0 ppb (15) | 14.6 ppb (14) | 0.0 ppb (0) | 22.0 ppb (21) | 0.29 ppb (4) | 20.0 μg/m3 (19) | 11.3 μg/m3 (48) | 48.0 | |
| March 7, 2021, 7 a.m. | 10.4 ppb (10) | 0.0 ppb (0) | 11.0 ppb (11) | 10.0 ppb (10) | 11.0 ppb (11) | 0.0 ppb (0) | 27.0 ppb (25) | 0.25 ppb (3) | 16.0 μg/m3 (15) | 7.6 μg/m3 (32) | 32.0 | |
| March 7, 2021, 6 a.m. | 9.7 ppb (10) | 1.0 ppb (1) | 7.9 ppb (8) | 9.0 ppb (9) | 7.1 ppb (7) | 0.0 ppb (0) | 31.0 ppb (29) | 0.27 ppb (4) | 17.0 μg/m3 (16) | 8.3 μg/m3 (35) | 35.0 | |
| March 7, 2021, 5 a.m. | 49.1 ppb (47) | 20.1 ppb (19) | 20.8 ppb (20) | 29.0 ppb (28) | 18.1 ppb (18) | 1.0 ppb (2) | 2.0 ppb (2) | 0.64 ppb (7) | 28.0 μg/m3 (26) | 12.1 μg/m3 (51) | 51.0 | |
| March 7, 2021, 4 a.m. | 28.3 ppb (27) | 8.8 ppb (9) | 16.5 ppb (16) | 19.0 ppb (18) | 15.8 ppb (15) | 0.0 ppb (0) | 17.0 ppb (16) | 0.47 ppb (6) | 23.0 μg/m3 (22) | 12.1 μg/m3 (51) | 51.0 | |
| March 7, 2021, 3 a.m. | 10.0 ppb (10) | 0.1 ppb (1) | 11.8 ppb (12) | 10.0 ppb (10) | 11.8 ppb (12) | 0.0 ppb (0) | 32.0 ppb (30) | 0.32 ppb (4) | 17.0 μg/m3 (16) | 9.4 μg/m3 (40) | 40.0 | |
| March 7, 2021, 2 a.m. | 13.9 ppb (14) | 0.1 ppb (1) | 14.9 ppb (15) | 14.0 ppb (14) | 14.8 ppb (14) | 0.0 ppb (0) | 28.0 ppb (26) | 0.32 ppb (4) | 19.0 μg/m3 (18) | 9.0 μg/m3 (38) | 38.0 | |
| March 7, 2021, 1 a.m. | 11.1 ppb (11) | 0.1 ppb (1) | 10.2 ppb (10) | 11.0 ppb (11) | 10.0 ppb (10) | 0.0 ppb (0) | 34.0 ppb (32) | 0.3 ppb (4) | 24.0 μg/m3 (23) | 10.5 μg/m3 (44) | 44.0 | |
| March 7, 2021, midnight | 8.3 ppb (8) | 0.2 ppb (1) | 7.7 ppb (8) | 8.0 ppb (8) | 7.3 ppb (7) | 0.0 ppb (0) | 39.0 ppb (37) | 0.28 ppb (4) | 16.0 μg/m3 (15) | 7.7 μg/m3 (33) | 37.0 | |
| March 6, 2021, 11 p.m. | 3.3 ppb (4) | 0.1 ppb (1) | 3.4 ppb (4) | 3.0 ppb (3) | 3.3 ppb (4) | 0.0 ppb (0) | 45.0 ppb (42) | 0.2 ppb (3) | 13.0 μg/m3 (13) | 5.6 μg/m3 (24) | 42.0 | |
| March 6, 2021, 10 p.m. | 3.1 ppb (3) | 0.1 ppb (1) | 3.0 ppb (3) | 3.0 ppb (3) | 2.7 ppb (3) | 0.0 ppb (0) | 47.0 ppb (44) | 0.19 ppb (3) | 12.0 μg/m3 (12) | 5.0 μg/m3 (21) | 44.0 | |
| March 6, 2021, 9 p.m. | 2.9 ppb (3) | 0.1 ppb (1) | 2.9 ppb (3) | 3.0 ppb (3) | 2.6 ppb (3) | 0.0 ppb (0) | 49.0 ppb (46) | 0.19 ppb (3) | 10.0 μg/m3 (10) | 5.4 μg/m3 (23) | 46.0 | |
| March 6, 2021, 8 p.m. | 2.9 ppb (3) | 0.0 ppb (0) | 3.0 ppb (3) | 3.0 ppb (3) | 2.9 ppb (3) | 0.0 ppb (0) | 51.0 ppb (48) | 0.19 ppb (3) | 12.0 μg/m3 (12) | 6.2 μg/m3 (26) | 48.0 | |
| March 6, 2021, 7 p.m. | 5.2 ppb (5) | 0.2 ppb (1) | 4.9 ppb (5) | 5.0 ppb (5) | 4.3 ppb (5) | 0.0 ppb (0) | 49.0 ppb (46) | 0.21 ppb (3) | 15.0 μg/m3 (14) | 7.3 μg/m3 (31) | 46.0 | |
| March 6, 2021, 6 p.m. | 6.4 ppb (7) | 0.4 ppb (1) | 5.9 ppb (6) | 6.0 ppb (6) | 4.8 ppb (5) | 0.0 ppb (0) | 45.0 ppb (42) | 0.2 ppb (3) | 15.0 μg/m3 (14) | 7.0 μg/m3 (30) | 42.0 | |
| March 6, 2021, 5 p.m. | 10.7 ppb (11) | 1.2 ppb (2) | 10.1 ppb (10) | 10.0 ppb (10) | 7.5 ppb (8) | 0.0 ppb (0) | 39.0 ppb (37) | 0.23 ppb (3) | 18.0 μg/m3 (17) | 8.4 μg/m3 (36) | 37.0 | |
| March 6, 2021, 4 p.m. | 18.0 ppb (17) | 3.2 ppb (4) | 17.1 ppb (17) | 15.0 ppb (15) | 11.4 ppb (11) | 0.0 ppb (0) | 29.0 ppb (27) | 0.28 ppb (4) | 20.0 μg/m3 (19) | 11.3 μg/m3 (48) | 48.0 | |
| March 6, 2021, 3 p.m. | 26.6 ppb (26) | 6.7 ppb (7) | 23.4 ppb (23) | 20.0 ppb (19) | 13.8 ppb (14) | 0.0 ppb (0) | 18.0 ppb (17) | 0.35 ppb (4) | 31.0 μg/m3 (29) | 16.8 μg/m3 (61) | 61.0 | |
| March 6, 2021, 2 p.m. | 37.8 ppb (36) | 20.8 ppb (20) | 38.2 ppb (37) | 17.0 ppb (17) | 16.4 ppb (16) | 0.0 ppb (0) | 7.0 ppb (7) | 0.47 ppb (6) | 31.0 μg/m3 (29) | 20.3 μg/m3 (69) | 69.0 | |
| March 6, 2021, 1 p.m. | 52.6 ppb (50) | 42.6 ppb (41) | 59.7 ppb (58) | 10.0 ppb (10) | 12.6 ppb (12) | 1.0 ppb (2) | 1.0 ppb (1) | 0.66 ppb (8) | 27.0 μg/m3 (25) | 16.8 μg/m3 (61) | 61.0 | |
| March 6, 2021, noon | 30.7 ppb (29) | 22.1 ppb (21) | 38.1 ppb (36) | 9.0 ppb (9) | 11.3 ppb (11) | 1.0 ppb (2) | 0.0 ppb (0) | 0.48 ppb (6) | 18.0 μg/m3 (17) | 12.7 μg/m3 (53) | 53.0 | |
| March 6, 2021, 11 a.m. | 31.1 ppb (30) | 23.0 ppb (22) | 34.1 ppb (33) | 8.0 ppb (8) | 9.9 ppb (10) | 1.0 ppb (2) | 0.0 ppb (0) | 0.43 ppb (5) | 20.0 μg/m3 (19) | 12.4 μg/m3 (52) | 52.0 | |
| March 6, 2021, 10 a.m. | 27.6 ppb (27) | 17.5 ppb (17) | 32.6 ppb (31) | 10.0 ppb (10) | 11.5 ppb (11) | 0.0 ppb (0) | 0.0 ppb (0) | 0.41 ppb (5) | 20.0 μg/m3 (19) | 12.2 μg/m3 (52) | 52.0 | |
| March 6, 2021, 9 a.m. | 26.6 ppb (26) | 15.2 ppb (15) | 31.5 ppb (30) | 11.0 ppb (11) | 12.5 ppb (12) | 1.0 ppb (2) | 0.0 ppb (0) | 0.42 ppb (5) | 21.0 μg/m3 (20) | 12.3 μg/m3 (52) | 52.0 | |
| March 6, 2021, 8 a.m. | 36.1 ppb (35) | 22.1 ppb (21) | 38.9 ppb (37) | 14.0 ppb (14) | 13.8 ppb (14) | 1.0 ppb (2) | 0.0 ppb (0) | 0.58 ppb (7) | 20.0 μg/m3 (19) | 12.0 μg/m3 (50) | 50.0 | |
| March 6, 2021, 7 a.m. | 25.1 ppb (24) | 11.3 ppb (11) | 28.9 ppb (28) | 14.0 ppb (14) | 15.6 ppb (15) | 0.0 ppb (0) | 0.0 ppb (0) | 0.43 ppb (5) | 19.0 μg/m3 (18) | 10.6 μg/m3 (45) | 45.0 | |
| March 6, 2021, 6 a.m. | 21.2 ppb (20) | 6.2 ppb (6) | 25.6 ppb (25) | 15.0 ppb (15) | 16.1 ppb (16) | 0.0 ppb (0) | 0.0 ppb (0) | 0.38 ppb (5) | 19.0 μg/m3 (18) | 10.5 μg/m3 (44) | 44.0 | |
| March 6, 2021, 5 a.m. | 34.1 ppb (33) | 11.5 ppb (11) | 36.6 ppb (35) | 23.0 ppb (22) | 23.1 ppb (22) | 0.0 ppb (0) | 0.0 ppb (0) | 0.51 ppb (6) | 21.0 μg/m3 (20) | 11.1 μg/m3 (47) | 47.0 | |
| March 6, 2021, 4 a.m. | 29.8 ppb (29) | 5.1 ppb (5) | 32.1 ppb (31) | 25.0 ppb (24) | 25.5 ppb (25) | 0.0 ppb (0) | 3.0 ppb (3) | 0.48 ppb (6) | 24.0 μg/m3 (23) | 11.9 μg/m3 (50) | 50.0 | |
| March 6, 2021, 3 a.m. | 11.2 ppb (11) | 0.4 ppb (1) | 16.4 ppb (16) | 11.0 ppb (11) | 15.3 ppb (15) | 0.0 ppb (0) | 24.0 ppb (23) | 0.27 ppb (4) | 17.0 μg/m3 (16) | 8.8 μg/m3 (37) | 37.0 | |
| March 6, 2021, 2 a.m. | 9.7 ppb (10) | 0.7 ppb (1) | 8.0 ppb (8) | 9.0 ppb (9) | 7.2 ppb (7) | 0.0 ppb (0) | 31.0 ppb (29) | 0.27 ppb (4) | 16.0 μg/m3 (15) | 8.3 μg/m3 (35) | 35.0 | |
| March 6, 2021, 1 a.m. | 8.8 ppb (9) | 0.5 ppb (1) | 8.0 ppb (8) | 8.0 ppb (8) | 7.1 ppb (7) | 0.0 ppb (0) | 34.0 ppb (32) | 0.26 ppb (4) | 16.0 μg/m3 (15) | 8.1 μg/m3 (34) | 34.0 | |
| March 6, 2021, midnight | 7.7 ppb (8) | 0.4 ppb (1) | 6.6 ppb (7) | 7.0 ppb (7) | 6.0 ppb (6) | 0.0 ppb (0) | 36.0 ppb (34) | 0.23 ppb (3) | 17.0 μg/m3 (16) | 7.7 μg/m3 (33) | 34.0 | |
| March 5, 2021, 11 p.m. | 4.2 ppb (4) | 0.3 ppb (1) | 3.7 ppb (4) | 4.0 ppb (4) | 3.2 ppb (4) | 0.0 ppb (0) | 42.0 ppb (39) | 0.21 ppb (3) | 13.0 μg/m3 (13) | 6.5 μg/m3 (28) | 39.0 | |
| March 5, 2021, 10 p.m. | 4.6 ppb (5) | 0.4 ppb (1) | 3.8 ppb (4) | 4.0 ppb (4) | 3.0 ppb (3) | 0.0 ppb (0) | 41.0 ppb (38) | 0.2 ppb (3) | 13.0 μg/m3 (13) | 5.4 μg/m3 (23) | 38.0 | |
| March 5, 2021, 9 p.m. | 4.3 ppb (5) | 0.4 ppb (1) | 3.8 ppb (4) | 4.0 ppb (4) | 3.0 ppb (3) | 0.0 ppb (0) | 42.0 ppb (39) | 0.19 ppb (3) | 16.0 μg/m3 (15) | 5.4 μg/m3 (23) | 39.0 | |
| March 5, 2021, 8 p.m. | 6.0 ppb (6) | 0.7 ppb (1) | 4.8 ppb (5) | 5.0 ppb (5) | 3.8 ppb (4) | 0.0 ppb (0) | 40.0 ppb (38) | 0.21 ppb (3) | 17.0 μg/m3 (16) | 6.9 μg/m3 (29) | 38.0 | |
| March 5, 2021, 7 p.m. | 5.7 ppb (6) | 0.4 ppb (1) | 5.1 ppb (5) | 5.0 ppb (5) | 4.1 ppb (4) | 1.0 ppb (2) | 43.0 ppb (40) | 0.24 ppb (3) | 28.0 μg/m3 (26) | 14.1 μg/m3 (56) | 56.0 | |
| March 5, 2021, 6 p.m. | 9.1 ppb (9) | 0.8 ppb (1) | 8.3 ppb (8) | 8.0 ppb (8) | 6.6 ppb (7) | 1.0 ppb (2) | 39.0 ppb (37) | 0.27 ppb (4) | 31.0 μg/m3 (29) | 17.5 μg/m3 (63) | 63.0 | |
| March 5, 2021, 5 p.m. | 9.0 ppb (9) | 0.6 ppb (1) | 8.4 ppb (8) | 8.0 ppb (8) | 7.1 ppb (7) | 1.0 ppb (2) | 37.0 ppb (35) | 0.25 ppb (3) | 29.0 μg/m3 (27) | 16.8 μg/m3 (61) | 61.0 | |
| March 5, 2021, 4 p.m. | 14.3 ppb (14) | 1.9 ppb (2) | 13.6 ppb (13) | 12.0 ppb (12) | 10.5 ppb (10) | 1.0 ppb (2) | 29.0 ppb (27) | 0.29 ppb (4) | 39.0 μg/m3 (37) | 24.2 μg/m3 (77) | 77.0 | |
| March 5, 2021, 3 p.m. | 14.7 ppb (14) | 2.4 ppb (3) | 14.5 ppb (14) | 12.0 ppb (12) | 10.1 ppb (10) | 1.0 ppb (2) | 22.0 ppb (21) | 0.35 ppb (4) | 56.0 μg/m3 (52) | 36.1 μg/m3 (103) | 103.0 | |
| March 5, 2021, 2 p.m. | 28.8 ppb (28) | 7.3 ppb (7) | 26.8 ppb (26) | 22.0 ppb (21) | 20.2 ppb (20) | 1.0 ppb (2) | 10.0 ppb (10) | 0.5 ppb (6) | 58.0 μg/m3 (53) | 35.1 μg/m3 (100) | 100.0 | |
| March 5, 2021, 1 p.m. | 17.1 ppb (17) | 1.7 ppb (2) | 15.8 ppb (15) | 15.0 ppb (15) | 14.3 ppb (14) | 0.0 ppb (0) | 13.0 ppb (13) | 0.42 ppb (5) | 49.0 μg/m3 (46) | 33.8 μg/m3 (97) | 97.0 | |
| March 5, 2021, noon | 13.5 ppb (13) | 1.4 ppb (2) | 11.7 ppb (12) | 12.0 ppb (12) | 10.6 ppb (10) | 0.0 ppb (0) | 18.0 ppb (17) | 0.35 ppb (4) | 44.0 μg/m3 (41) | 33.1 μg/m3 (96) | 96.0 | |
| March 5, 2021, 11 a.m. | 8.7 ppb (9) | 0.4 ppb (1) | 8.5 ppb (9) | 8.0 ppb (8) | 7.8 ppb (8) | 0.0 ppb (0) | 24.0 ppb (23) | 0.3 ppb (4) | 47.0 μg/m3 (44) | 35.4 μg/m3 (100) | 100.0 | |
| March 5, 2021, 10 a.m. | 8.6 ppb (9) | 0.5 ppb (1) | 8.5 ppb (9) | 8.0 ppb (8) | 8.0 ppb (8) | 0.0 ppb (0) | 23.0 ppb (22) | 0.32 ppb (4) | 49.0 μg/m3 (46) | 37.2 μg/m3 (106) | 106.0 | |
| March 5, 2021, 9 a.m. | 7.2 ppb (7) | 0.2 ppb (1) | 7.3 ppb (7) | 7.0 ppb (7) | 7.0 ppb (7) | 0.0 ppb (0) | 30.0 ppb (28) | 0.32 ppb (4) | 51.0 μg/m3 (48) | 36.6 μg/m3 (104) | 104.0 | |
| March 5, 2021, 8 a.m. | 12.5 ppb (12) | 0.5 ppb (1) | 10.9 ppb (11) | 12.0 ppb (12) | 10.6 ppb (10) | 1.0 ppb (2) | 28.0 ppb (26) | 0.32 ppb (4) | 49.0 μg/m3 (46) | 30.4 μg/m3 (90) | 90.0 | |
| March 5, 2021, 7 a.m. | 9.8 ppb (10) | 0.3 ppb (1) | 9.6 ppb (10) | 10.0 ppb (10) | 9.1 ppb (9) | 1.0 ppb (2) | 36.0 ppb (34) | 0.33 ppb (4) | 44.0 μg/m3 (41) | 29.7 μg/m3 (89) | 89.0 | |
| March 5, 2021, 6 a.m. | 15.0 ppb (15) | 0.2 ppb (1) | 14.3 ppb (14) | 15.0 ppb (15) | 14.1 ppb (14) | 1.0 ppb (2) | 33.0 ppb (31) | 0.35 ppb (4) | 45.0 μg/m3 (42) | 25.1 μg/m3 (79) | 79.0 | |
| March 5, 2021, 5 a.m. | 23.2 ppb (22) | 0.6 ppb (1) | 20.7 ppb (20) | 23.0 ppb (22) | 20.0 ppb (19) | 1.0 ppb (2) | 22.0 ppb (21) | 0.43 ppb (5) | 48.0 μg/m3 (45) | 23.9 μg/m3 (76) | 76.0 | |
| March 5, 2021, 4 a.m. | 21.3 ppb (21) | 0.3 ppb (1) | 19.4 ppb (19) | 21.0 ppb (20) | 19.2 ppb (19) | 1.0 ppb (2) | 24.0 ppb (23) | 0.43 ppb (5) | 50.0 μg/m3 (47) | 22.0 μg/m3 (72) | 72.0 | |
| March 5, 2021, 3 a.m. | 13.0 ppb (13) | 0.2 ppb (1) | 12.2 ppb (12) | 13.0 ppb (13) | 12.0 ppb (12) | 1.0 ppb (2) | 43.0 ppb (40) | 0.31 ppb (4) | 40.0 μg/m3 (38) | 20.3 μg/m3 (69) | 69.0 | |
| March 5, 2021, 2 a.m. | 12.0 ppb (12) | 0.1 ppb (1) | 11.5 ppb (11) | 12.0 ppb (12) | 11.3 ppb (11) | 1.0 ppb (2) | 47.0 ppb (44) | 0.32 ppb (4) | 38.0 μg/m3 (36) | 18.9 μg/m3 (66) | 66.0 | |
| March 5, 2021, 1 a.m. | 9.6 ppb (10) | 0.1 ppb (1) | 9.2 ppb (9) | 10.0 ppb (10) | 9.2 ppb (9) | 1.0 ppb (2) | 53.0 ppb (50) | 0.32 ppb (4) | 36.0 μg/m3 (34) | 18.0 μg/m3 (64) | 64.0 | |
| March 5, 2021, midnight | 8.6 ppb (9) | 0.1 ppb (1) | 8.4 ppb (8) | 9.0 ppb (9) | 8.2 ppb (8) | 1.0 ppb (2) | 56.0 ppb (55) | 0.27 ppb (4) | 33.0 μg/m3 (31) | 13.0 μg/m3 (53) | 55.0 | |
| March 4, 2021, 11 p.m. | 6.4 ppb (7) | 0.1 ppb (1) | 6.1 ppb (6) | 6.0 ppb (6) | 5.9 ppb (6) | 1.0 ppb (2) | 57.0 ppb (58) | 0.23 ppb (3) | 34.0 μg/m3 (32) | 8.6 μg/m3 (36) | 58.0 | |
| March 4, 2021, 10 p.m. | 5.6 ppb (6) | 0.1 ppb (1) | 5.4 ppb (6) | 6.0 ppb (6) | 5.0 ppb (5) | 1.0 ppb (2) | 58.0 ppb (61) | 0.24 ppb (3) | 25.0 μg/m3 (24) | 7.0 μg/m3 (30) | 61.0 | |
| March 4, 2021, 9 p.m. | 4.8 ppb (5) | 0.1 ppb (1) | 4.7 ppb (5) | 5.0 ppb (5) | 4.3 ppb (5) | 1.0 ppb (2) | 60.0 ppb (68) | 0.21 ppb (3) | 27.0 μg/m3 (25) | 7.0 μg/m3 (30) | 68.0 | |
| March 4, 2021, 8 p.m. | 4.5 ppb (5) | 0.1 ppb (1) | 4.3 ppb (5) | 4.0 ppb (4) | 3.9 ppb (4) | 1.0 ppb (2) | 60.0 ppb (68) | 0.21 ppb (3) | 24.0 μg/m3 (23) | 6.9 μg/m3 (29) | 68.0 | |
| March 4, 2021, 7 p.m. | 4.2 ppb (4) | 0.1 ppb (1) | 3.8 ppb (4) | 4.0 ppb (4) | 3.6 ppb (4) | 1.0 ppb (2) | 60.0 ppb (68) | 0.21 ppb (3) | 26.0 μg/m3 (25) | 10.6 μg/m3 (45) | 68.0 | |
| March 4, 2021, 6 p.m. | 4.8 ppb (5) | 0.1 ppb (1) | 4.5 ppb (5) | 5.0 ppb (5) | 4.2 ppb (4) | 1.0 ppb (2) | 62.0 ppb (74) | 0.23 ppb (3) | 33.0 μg/m3 (31) | 17.6 μg/m3 (63) | 74.0 | |
| March 4, 2021, 5 p.m. | 6.9 ppb (7) | 0.3 ppb (1) | 6.0 ppb (6) | 7.0 ppb (7) | 5.2 ppb (5) | 1.0 ppb (2) | 56.0 ppb (55) | 0.23 ppb (3) | N/A | N/A | 55.0 | |
| March 4, 2021, 4 p.m. | 10.2 ppb (10) | 0.6 ppb (1) | 9.6 ppb (10) | 10.0 ppb (10) | 7.9 ppb (8) | 1.0 ppb (2) | 45.0 ppb (42) | 0.24 ppb (3) | 25.0 μg/m3 (24) | 7.9 μg/m3 (33) | 42.0 | |
| March 4, 2021, 3 p.m. | 23.2 ppb (22) | 5.3 ppb (5) | 22.2 ppb (21) | 18.0 ppb (17) | 14.7 ppb (14) | 1.0 ppb (2) | 35.0 ppb (33) | 0.33 ppb (4) | 39.0 μg/m3 (37) | 16.8 μg/m3 (61) | 61.0 | |
| March 4, 2021, 2 p.m. | 82.5 ppb (82) | 46.8 ppb (45) | 85.2 ppb (85) | 36.0 ppb (34) | 34.8 ppb (33) | 1.0 ppb (2) | 4.0 ppb (4) | 0.85 ppb (10) | 72.0 μg/m3 (60) | 41.3 μg/m3 (116) | 116.0 | |
| March 4, 2021, 1 p.m. | 64.6 ppb (63) | 41.5 ppb (40) | 66.5 ppb (65) | 23.0 ppb (22) | 24.5 ppb (24) | 1.0 ppb (2) | 2.0 ppb (2) | 0.82 ppb (10) | 80.0 μg/m3 (64) | 59.5 μg/m3 (154) | 154.0 | |
| March 4, 2021, noon | 51.1 ppb (49) | 27.6 ppb (27) | 62.9 ppb (61) | 23.0 ppb (22) | 27.2 ppb (26) | 1.0 ppb (2) | 1.0 ppb (1) | 0.6 ppb (7) | 79.0 μg/m3 (63) | 61.9 μg/m3 (155) | 155.0 | |
| March 4, 2021, 11 a.m. | 24.8 ppb (24) | 5.9 ppb (6) | 29.1 ppb (28) | 19.0 ppb (18) | 22.6 ppb (22) | 0.0 ppb (0) | 2.0 ppb (2) | 0.49 ppb (6) | 74.0 μg/m3 (61) | 60.6 μg/m3 (154) | 154.0 | |
| March 4, 2021, 10 a.m. | 18.4 ppb (18) | 1.3 ppb (2) | 21.9 ppb (21) | 17.0 ppb (17) | 19.9 ppb (19) | 0.0 ppb (0) | 7.0 ppb (7) | 0.48 ppb (6) | 75.0 μg/m3 (61) | 59.9 μg/m3 (154) | 154.0 | |
| March 4, 2021, 9 a.m. | 15.4 ppb (15) | 0.4 ppb (1) | 17.9 ppb (17) | 15.0 ppb (15) | 17.7 ppb (17) | 0.0 ppb (0) | 19.0 ppb (18) | 0.43 ppb (5) | 77.0 μg/m3 (62) | 61.6 μg/m3 (155) | 155.0 | |
| March 4, 2021, 8 a.m. | 13.6 ppb (13) | 0.3 ppb (1) | 14.8 ppb (14) | 13.0 ppb (13) | 14.8 ppb (14) | 1.0 ppb (2) | 27.0 ppb (25) | 0.4 ppb (5) | 81.0 μg/m3 (64) | 65.2 μg/m3 (157) | 157.0 | |
| March 4, 2021, 7 a.m. | 12.1 ppb (12) | 0.2 ppb (1) | 13.6 ppb (13) | 12.0 ppb (12) | 13.5 ppb (13) | 1.0 ppb (2) | 31.0 ppb (29) | 0.4 ppb (5) | 76.0 μg/m3 (62) | 61.5 μg/m3 (155) | 155.0 | |
| March 4, 2021, 6 a.m. | 12.3 ppb (12) | 0.2 ppb (1) | 12.7 ppb (12) | 12.0 ppb (12) | 12.5 ppb (12) | 1.0 ppb (2) | 33.0 ppb (31) | 0.37 ppb (5) | 61.0 μg/m3 (54) | 44.4 μg/m3 (123) | 123.0 | |
| March 4, 2021, 5 a.m. | 18.0 ppb (17) | 0.2 ppb (1) | 17.9 ppb (17) | 18.0 ppb (17) | 17.2 ppb (17) | 1.0 ppb (2) | 29.0 ppb (27) | 0.39 ppb (5) | 58.0 μg/m3 (53) | 34.9 μg/m3 (99) | 99.0 | |
| March 4, 2021, 4 a.m. | 43.6 ppb (42) | 7.9 ppb (8) | 35.6 ppb (34) | 36.0 ppb (34) | 30.3 ppb (29) | 1.0 ppb (2) | 4.0 ppb (4) | 0.7 ppb (8) | 47.0 μg/m3 (44) | 22.4 μg/m3 (73) | 73.0 | |
| March 4, 2021, 3 a.m. | 57.8 ppb (56) | 15.9 ppb (15) | 55.4 ppb (53) | 42.0 ppb (40) | 40.5 ppb (39) | 1.0 ppb (2) | 1.0 ppb (1) | 0.78 ppb (10) | 54.0 μg/m3 (50) | 26.9 μg/m3 (83) | 83.0 | |
| March 4, 2021, 2 a.m. | 40.9 ppb (39) | 3.8 ppb (4) | 51.8 ppb (49) | 37.0 ppb (35) | 39.5 ppb (38) | 1.0 ppb (2) | 13.0 ppb (13) | 0.65 ppb (8) | 51.0 μg/m3 (48) | 30.4 μg/m3 (90) | 90.0 | |
| March 4, 2021, 1 a.m. | 22.6 ppb (22) | 0.1 ppb (1) | 25.0 ppb (24) | 23.0 ppb (22) | 24.9 ppb (24) | 1.0 ppb (2) | 32.0 ppb (30) | 0.48 ppb (6) | 47.0 μg/m3 (44) | 27.0 μg/m3 (83) | 83.0 | |
| March 4, 2021, midnight | 16.6 ppb (16) | 0.1 ppb (1) | 16.4 ppb (16) | 17.0 ppb (17) | 16.4 ppb (16) | 1.0 ppb (2) | 44.0 ppb (41) | 0.38 ppb (5) | 42.0 μg/m3 (39) | 22.2 μg/m3 (73) | 73.0 | |
| March 3, 2021, 11 p.m. | 5.5 ppb (6) | 0.0 ppb (0) | 5.9 ppb (6) | 6.0 ppb (6) | 5.8 ppb (6) | 1.0 ppb (2) | 56.0 ppb (55) | 0.24 ppb (3) | 25.0 μg/m3 (24) | 9.5 μg/m3 (40) | 55.0 | |
| March 3, 2021, 10 p.m. | 3.9 ppb (4) | 0.0 ppb (0) | 3.7 ppb (4) | 4.0 ppb (4) | 3.6 ppb (4) | 0.0 ppb (0) | 55.0 ppb (51) | 0.21 ppb (3) | 23.0 μg/m3 (22) | 6.2 μg/m3 (26) | 51.0 | |
| March 3, 2021, 9 p.m. | 4.4 ppb (5) | 0.1 ppb (1) | 4.3 ppb (5) | 4.0 ppb (4) | 4.0 ppb (4) | 1.0 ppb (2) | 56.0 ppb (55) | 0.21 ppb (3) | 24.0 μg/m3 (23) | 5.8 μg/m3 (25) | 55.0 | |
| March 3, 2021, 8 p.m. | 3.9 ppb (4) | 0.0 ppb (0) | 3.9 ppb (4) | 4.0 ppb (4) | 3.6 ppb (4) | 1.0 ppb (2) | 57.0 ppb (58) | 0.21 ppb (3) | 27.0 μg/m3 (25) | 6.0 μg/m3 (25) | 58.0 | |
| March 3, 2021, 7 p.m. | 4.5 ppb (5) | 0.1 ppb (1) | 4.3 ppb (5) | 4.0 ppb (4) | 3.9 ppb (4) | 1.0 ppb (2) | 55.0 ppb (51) | 0.2 ppb (3) | 23.0 μg/m3 (22) | 4.6 μg/m3 (20) | 51.0 | |
| March 3, 2021, 6 p.m. | 5.0 ppb (5) | 0.2 ppb (1) | 4.6 ppb (5) | 5.0 ppb (5) | 4.1 ppb (4) | 1.0 ppb (2) | 52.0 ppb (49) | 0.2 ppb (3) | 22.0 μg/m3 (21) | 4.7 μg/m3 (20) | 49.0 | |
| March 3, 2021, 5 p.m. | 6.4 ppb (7) | 0.4 ppb (1) | 6.0 ppb (6) | 6.0 ppb (6) | 4.9 ppb (5) | 1.0 ppb (2) | 45.0 ppb (42) | 0.2 ppb (3) | N/A | N/A | 42.0 | |
| March 3, 2021, 4 p.m. | 7.0 ppb (7) | 0.5 ppb (1) | 6.7 ppb (7) | 7.0 ppb (7) | 5.4 ppb (6) | 1.0 ppb (2) | 41.0 ppb (38) | 0.21 ppb (3) | 26.0 μg/m3 (25) | 5.9 μg/m3 (25) | 38.0 | |
| March 3, 2021, 3 p.m. | 13.8 ppb (14) | 1.8 ppb (2) | 13.0 ppb (13) | 12.0 ppb (12) | 9.6 ppb (10) | 1.0 ppb (2) | 33.0 ppb (31) | 0.24 ppb (3) | 31.0 μg/m3 (29) | 8.0 μg/m3 (34) | 34.0 | |
| March 3, 2021, 2 p.m. | 17.9 ppb (17) | 2.3 ppb (3) | 17.6 ppb (17) | 16.0 ppb (16) | 13.4 ppb (13) | 1.0 ppb (2) | 27.0 ppb (25) | 0.27 ppb (4) | 27.0 μg/m3 (25) | 8.4 μg/m3 (36) | 36.0 | |
| March 3, 2021, 1 p.m. | 35.4 ppb (34) | 10.4 ppb (10) | 29.1 ppb (28) | 25.0 ppb (24) | 23.2 ppb (22) | 1.0 ppb (2) | 14.0 ppb (13) | 0.42 ppb (5) | 24.0 μg/m3 (23) | 9.9 μg/m3 (42) | 42.0 | |
| March 3, 2021, noon | 25.2 ppb (24) | 2.2 ppb (3) | 23.3 ppb (22) | 23.0 ppb (22) | 21.8 ppb (21) | 0.0 ppb (0) | 16.0 ppb (15) | 0.41 ppb (5) | 25.0 μg/m3 (24) | 9.8 μg/m3 (41) | 41.0 | |
| March 3, 2021, 11 a.m. | 19.8 ppb (19) | 0.3 ppb (1) | 18.6 ppb (18) | 20.0 ppb (19) | 18.4 ppb (18) | 0.0 ppb (0) | 20.0 ppb (19) | 0.3 ppb (4) | 20.0 μg/m3 (19) | 10.6 μg/m3 (45) | 45.0 | |
| March 3, 2021, 10 a.m. | 23.4 ppb (23) | 0.4 ppb (1) | 22.4 ppb (22) | 23.0 ppb (22) | 22.1 ppb (21) | 0.0 ppb (0) | 15.0 ppb (14) | 0.28 ppb (4) | 23.0 μg/m3 (22) | 13.1 μg/m3 (54) | 54.0 | |
| March 3, 2021, 9 a.m. | 23.6 ppb (23) | 0.7 ppb (1) | 23.1 ppb (22) | 23.0 ppb (22) | 22.9 ppb (22) | 0.0 ppb (0) | 17.0 ppb (16) | 0.27 ppb (4) | 26.0 μg/m3 (25) | 13.2 μg/m3 (54) | 54.0 | |
| March 3, 2021, 8 a.m. | 20.0 ppb (19) | 0.1 ppb (1) | 20.3 ppb (20) | 20.0 ppb (19) | 20.2 ppb (20) | 0.0 ppb (0) | 20.0 ppb (19) | 0.27 ppb (4) | 24.0 μg/m3 (23) | 13.6 μg/m3 (55) | 55.0 | |
| March 3, 2021, 7 a.m. | 17.5 ppb (17) | 1.4 ppb (2) | 13.5 ppb (13) | 16.0 ppb (16) | 13.3 ppb (13) | 0.0 ppb (0) | 22.0 ppb (21) | 0.3 ppb (4) | 29.0 μg/m3 (27) | 14.7 μg/m3 (57) | 57.0 | |
| March 3, 2021, 6 a.m. | 15.5 ppb (15) | 0.1 ppb (1) | 14.9 ppb (15) | 15.0 ppb (15) | 14.7 ppb (14) | 0.0 ppb (0) | 25.0 ppb (24) | 0.28 ppb (4) | 29.0 μg/m3 (27) | 12.4 μg/m3 (52) | 52.0 | |
| March 3, 2021, 5 a.m. | 19.9 ppb (19) | 0.3 ppb (1) | 18.6 ppb (18) | 20.0 ppb (19) | 18.2 ppb (18) | 0.0 ppb (0) | 20.0 ppb (19) | 0.34 ppb (4) | 25.0 μg/m3 (24) | 10.0 μg/m3 (42) | 42.0 | |
| March 3, 2021, 3 a.m. | 45.6 ppb (44) | 9.3 ppb (9) | 34.6 ppb (33) | 36.0 ppb (34) | 30.7 ppb (29) | 1.0 ppb (2) | 5.0 ppb (5) | 0.58 ppb (7) | 41.0 μg/m3 (38) | 12.3 μg/m3 (52) | 52.0 | |
| March 3, 2021, 2 a.m. | 53.5 ppb (51) | 11.0 ppb (11) | 52.4 ppb (50) | 42.0 ppb (40) | 43.1 ppb (41) | 1.0 ppb (2) | 1.0 ppb (1) | 0.72 ppb (8) | 42.0 μg/m3 (39) | 11.0 μg/m3 (46) | 51.0 | |
| March 3, 2021, 1 a.m. | 31.7 ppb (30) | 1.8 ppb (2) | 40.7 ppb (39) | 30.0 ppb (29) | 35.7 ppb (34) | 0.0 ppb (0) | 14.0 ppb (13) | 0.69 ppb (8) | 32.0 μg/m3 (30) | 8.5 μg/m3 (36) | 39.0 | |
| March 3, 2021, midnight | 9.8 ppb (10) | 0.1 ppb (1) | 14.3 ppb (14) | 10.0 ppb (10) | 13.6 ppb (13) | 0.0 ppb (0) | 39.0 ppb (37) | 0.25 ppb (3) | 21.0 μg/m3 (20) | 6.2 μg/m3 (26) | 37.0 | |
| March 2, 2021, 11 p.m. | 3.7 ppb (4) | 0.0 ppb (0) | 3.9 ppb (4) | 4.0 ppb (4) | 3.9 ppb (4) | 0.0 ppb (0) | 50.0 ppb (47) | 0.19 ppb (3) | 19.0 μg/m3 (18) | 5.4 μg/m3 (23) | 47.0 | |
| March 2, 2021, 10 p.m. | 2.3 ppb (3) | 0.0 ppb (0) | 2.4 ppb (3) | 2.0 ppb (2) | 2.3 ppb (3) | 0.0 ppb (0) | 51.0 ppb (48) | 0.19 ppb (3) | 16.0 μg/m3 (15) | 5.1 μg/m3 (22) | 48.0 | |
| March 2, 2021, 9 p.m. | 1.9 ppb (2) | 0.0 ppb (0) | 2.0 ppb (2) | 2.0 ppb (2) | 2.0 ppb (2) | 0.0 ppb (0) | 49.0 ppb (46) | 0.18 ppb (3) | 16.0 μg/m3 (15) | 4.8 μg/m3 (20) | 46.0 | |
| March 2, 2021, 8 p.m. | 2.0 ppb (2) | 0.0 ppb (0) | 1.8 ppb (2) | 2.0 ppb (2) | 1.8 ppb (2) | 0.0 ppb (0) | 48.0 ppb (45) | 0.18 ppb (3) | 19.0 μg/m3 (18) | 4.9 μg/m3 (21) | 45.0 | |
| March 2, 2021, 7 p.m. | 2.2 ppb (3) | 0.0 ppb (0) | 1.9 ppb (2) | 2.0 ppb (2) | 1.9 ppb (2) | 0.0 ppb (0) | 48.0 ppb (45) | 0.18 ppb (3) | 17.0 μg/m3 (16) | 5.2 μg/m3 (22) | 45.0 | |
| March 2, 2021, 6 p.m. | 2.8 ppb (3) | 0.1 ppb (1) | 2.3 ppb (3) | 3.0 ppb (3) | 2.1 ppb (2) | 0.0 ppb (0) | 45.0 ppb (42) | 0.19 ppb (3) | 17.0 μg/m3 (16) | 5.3 μg/m3 (23) | 42.0 | |
| March 2, 2021, 5 p.m. | 4.4 ppb (5) | 0.3 ppb (1) | 3.4 ppb (4) | 4.0 ppb (4) | 2.9 ppb (3) | 0.0 ppb (0) | 42.0 ppb (39) | 0.2 ppb (3) | N/A | N/A | 39.0 | |
| March 2, 2021, 3 p.m. | 38.1 ppb (36) | 15.8 ppb (15) | 39.0 ppb (37) | 22.0 ppb (21) | 19.2 ppb (19) | 1.0 ppb (2) | 22.0 ppb (21) | 0.41 ppb (5) | 43.0 μg/m3 (40) | 12.5 μg/m3 (52) | 52.0 | |
| March 2, 2021, 2 p.m. | 100.3 ppb (101) | 68.6 ppb (67) | 98.4 ppb (99) | 32.0 ppb (31) | 28.8 ppb (28) | 2.0 ppb (3) | 2.0 ppb (2) | 0.85 ppb (10) | 58.0 μg/m3 (53) | 18.1 μg/m3 (64) | 101.0 | |
| March 2, 2021, 1 p.m. | 90.7 ppb (91) | 70.9 ppb (70) | 106.8 ppb (103) | 20.0 ppb (19) | 24.4 ppb (24) | 1.0 ppb (2) | 1.0 ppb (1) | 0.84 ppb (10) | 32.0 μg/m3 (30) | 13.1 μg/m3 (54) | 103.0 | |
| March 2, 2021, noon | 52.0 ppb (50) | 32.1 ppb (31) | 58.1 ppb (56) | 20.0 ppb (19) | 22.3 ppb (22) | 1.0 ppb (2) | 0.0 ppb (0) | 0.56 ppb (7) | 19.0 μg/m3 (18) | 9.3 μg/m3 (39) | 56.0 | |
| March 2, 2021, 11 a.m. | 64.3 ppb (62) | 46.6 ppb (44) | 63.5 ppb (62) | 18.0 ppb (17) | 21.4 ppb (21) | 1.0 ppb (2) | 0.0 ppb (0) | 0.65 ppb (8) | 21.0 μg/m3 (20) | 9.4 μg/m3 (40) | 62.0 | |
| March 2, 2021, 10 a.m. | 56.6 ppb (54) | 38.2 ppb (37) | 66.1 ppb (64) | 18.0 ppb (17) | 20.8 ppb (20) | 1.0 ppb (2) | 0.0 ppb (0) | 0.56 ppb (7) | 21.0 μg/m3 (20) | 8.7 μg/m3 (37) | 64.0 | |
| March 2, 2021, 9 a.m. | 46.0 ppb (44) | 28.4 ppb (27) | 53.8 ppb (51) | 18.0 ppb (17) | 20.7 ppb (20) | 1.0 ppb (2) | 0.0 ppb (0) | 0.51 ppb (6) | 19.0 μg/m3 (18) | 8.3 μg/m3 (35) | 51.0 | |
| March 2, 2021, 8 a.m. | 43.8 ppb (42) | 25.4 ppb (24) | 46.0 ppb (44) | 18.0 ppb (17) | 19.7 ppb (19) | 1.0 ppb (2) | 0.0 ppb (0) | 0.54 ppb (6) | 18.0 μg/m3 (17) | 7.7 μg/m3 (33) | 44.0 | |
| March 2, 2021, 7 a.m. | 43.6 ppb (42) | 24.1 ppb (23) | 44.2 ppb (42) | 20.0 ppb (19) | 20.9 ppb (20) | 1.0 ppb (2) | 0.0 ppb (0) | 0.57 ppb (7) | 22.0 μg/m3 (21) | 8.0 μg/m3 (34) | 42.0 | |
| March 2, 2021, 6 a.m. | 41.6 ppb (40) | 20.9 ppb (20) | 45.8 ppb (44) | 21.0 ppb (20) | 22.0 ppb (21) | 1.0 ppb (2) | 0.0 ppb (0) | 0.67 ppb (8) | 25.0 μg/m3 (24) | 7.9 μg/m3 (33) | 44.0 | |
| March 2, 2021, 5 a.m. | 39.0 ppb (37) | 17.0 ppb (17) | 41.8 ppb (40) | 22.0 ppb (21) | 22.7 ppb (22) | 0.0 ppb (0) | 0.0 ppb (0) | 0.51 ppb (6) | 23.0 μg/m3 (22) | 7.4 μg/m3 (31) | 40.0 | |
| March 2, 2021, 4 a.m. | 56.9 ppb (55) | 27.0 ppb (26) | 58.7 ppb (57) | 30.0 ppb (29) | 29.8 ppb (29) | 1.0 ppb (2) | 0.0 ppb (0) | 0.71 ppb (8) | 24.0 μg/m3 (23) | 8.2 μg/m3 (35) | 57.0 | |
| March 2, 2021, 3 a.m. | 40.6 ppb (39) | 13.4 ppb (13) | 49.5 ppb (47) | 27.0 ppb (26) | 28.6 ppb (27) | 0.0 ppb (0) | 1.0 ppb (1) | 0.61 ppb (7) | 24.0 μg/m3 (23) | 7.7 μg/m3 (33) | 47.0 | |
| March 2, 2021, 2 a.m. | 44.8 ppb (43) | 10.0 ppb (10) | 45.7 ppb (44) | 35.0 ppb (34) | 34.2 ppb (33) | 0.0 ppb (0) | 1.0 ppb (1) | 0.7 ppb (8) | 27.0 μg/m3 (25) | 7.0 μg/m3 (30) | 44.0 | |
| March 2, 2021, 1 a.m. | 26.7 ppb (26) | 1.7 ppb (2) | 31.1 ppb (30) | 25.0 ppb (24) | 28.2 ppb (27) | 0.0 ppb (0) | 15.0 ppb (14) | 0.45 ppb (6) | 17.0 μg/m3 (16) | 5.9 μg/m3 (25) | 30.0 | |
| March 2, 2021, midnight | 21.6 ppb (21) | 1.0 ppb (1) | 24.2 ppb (23) | 21.0 ppb (20) | 22.0 ppb (21) | 0.0 ppb (0) | 22.0 ppb (21) | 0.43 ppb (5) | 18.0 μg/m3 (17) | 5.2 μg/m3 (22) | 23.0 | |
| March 1, 2021, 11 p.m. | 9.5 ppb (9) | 1.1 ppb (2) | 8.6 ppb (9) | 8.0 ppb (8) | 6.7 ppb (7) | 0.0 ppb (0) | 38.0 ppb (36) | 0.31 ppb (4) | 10.0 μg/m3 (10) | 3.6 μg/m3 (16) | 36.0 | |
| March 1, 2021, 10 p.m. | 4.3 ppb (5) | 0.5 ppb (1) | 4.3 ppb (5) | 4.0 ppb (4) | 3.1 ppb (3) | 0.0 ppb (0) | 41.0 ppb (38) | 0.26 ppb (4) | 10.0 μg/m3 (10) | 3.3 μg/m3 (14) | 38.0 | |
| March 1, 2021, 9 p.m. | 3.5 ppb (4) | 0.4 ppb (1) | 5.0 ppb (5) | 3.0 ppb (3) | 3.8 ppb (4) | 0.0 ppb (0) | 41.0 ppb (38) | 0.24 ppb (3) | 9.0 μg/m3 (9) | 2.8 μg/m3 (12) | 38.0 | |
| March 1, 2021, 8 p.m. | 3.1 ppb (3) | 0.3 ppb (1) | 3.2 ppb (4) | 3.0 ppb (3) | 2.2 ppb (3) | 0.0 ppb (0) | 41.0 ppb (38) | 0.25 ppb (3) | 8.0 μg/m3 (8) | 2.8 μg/m3 (12) | 38.0 | |
| March 1, 2021, 7 p.m. | 3.6 ppb (4) | 0.4 ppb (1) | 3.7 ppb (4) | 3.0 ppb (3) | 2.5 ppb (3) | 2.0 ppb (3) | 40.0 ppb (38) | 0.23 ppb (3) | 9.0 μg/m3 (9) | 3.4 μg/m3 (15) | 38.0 | |
| March 1, 2021, 6 p.m. | 3.0 ppb (3) | 0.3 ppb (1) | 3.3 ppb (4) | 3.0 ppb (3) | 2.5 ppb (3) | 1.0 ppb (2) | 38.0 ppb (36) | 0.23 ppb (3) | 11.0 μg/m3 (11) | 4.4 μg/m3 (19) | 36.0 | |
| March 1, 2021, 5 p.m. | 4.1 ppb (4) | 0.5 ppb (1) | 4.5 ppb (5) | 4.0 ppb (4) | 3.3 ppb (4) | 0.0 ppb (0) | 33.0 ppb (31) | 0.23 ppb (3) | 13.0 μg/m3 (13) | 5.8 μg/m3 (25) | 31.0 | |
| March 1, 2021, 4 p.m. | 4.5 ppb (5) | 0.7 ppb (1) | 4.8 ppb (5) | 4.0 ppb (4) | 3.4 ppb (4) | 0.0 ppb (0) | 27.0 ppb (25) | 0.23 ppb (3) | 14.0 μg/m3 (13) | 7.6 μg/m3 (32) | 32.0 | |
| March 1, 2021, 3 p.m. | 8.3 ppb (8) | 3.3 ppb (4) | 7.2 ppb (7) | 5.0 ppb (5) | 4.8 ppb (5) | 0.0 ppb (0) | 24.0 ppb (23) | 0.24 ppb (3) | 13.0 μg/m3 (13) | 8.0 μg/m3 (34) | 34.0 | |
| March 1, 2021, 2 p.m. | 7.2 ppb (7) | 1.4 ppb (2) | 6.2 ppb (6) | 6.0 ppb (6) | 4.2 ppb (4) | 0.0 ppb (0) | 22.0 ppb (21) | 0.25 ppb (3) | 15.0 μg/m3 (14) | 8.0 μg/m3 (34) | 34.0 | |
| March 1, 2021, 1 p.m. | 15.7 ppb (15) | 4.0 ppb (4) | 14.9 ppb (15) | 12.0 ppb (12) | 10.8 ppb (11) | 0.0 ppb (0) | 13.0 ppb (13) | 0.44 ppb (5) | 16.0 μg/m3 (15) | 7.6 μg/m3 (32) | 32.0 | |
| March 1, 2021, noon | 4.1 ppb (4) | 0.4 ppb (1) | 3.6 ppb (4) | 4.0 ppb (4) | 3.1 ppb (3) | 0.0 ppb (0) | 22.0 ppb (21) | 0.23 ppb (3) | 12.0 μg/m3 (12) | 6.8 μg/m3 (29) | 29.0 | |
| March 1, 2021, 11 a.m. | 2.7 ppb (3) | 0.1 ppb (1) | 2.6 ppb (3) | 3.0 ppb (3) | 2.4 ppb (3) | 0.0 ppb (0) | 23.0 ppb (22) | 0.23 ppb (3) | 11.0 μg/m3 (11) | 6.2 μg/m3 (26) | 26.0 | |
| March 1, 2021, 10 a.m. | 2.6 ppb (3) | 0.1 ppb (1) | 2.4 ppb (3) | 3.0 ppb (3) | 2.2 ppb (3) | 0.0 ppb (0) | 23.0 ppb (22) | 0.22 ppb (3) | 11.0 μg/m3 (11) | 6.0 μg/m3 (25) | 25.0 | |
| March 1, 2021, 9 a.m. | 2.4 ppb (3) | 0.0 ppb (0) | 2.4 ppb (3) | 2.0 ppb (2) | 2.3 ppb (3) | 0.0 ppb (0) | 24.0 ppb (23) | 0.23 ppb (3) | 12.0 μg/m3 (12) | 6.0 μg/m3 (25) | 25.0 | |
| March 1, 2021, 8 a.m. | 3.1 ppb (3) | 0.4 ppb (1) | 2.5 ppb (3) | 3.0 ppb (3) | 1.4 ppb (2) | 0.0 ppb (0) | 26.0 ppb (25) | 0.22 ppb (3) | 11.0 μg/m3 (11) | 5.4 μg/m3 (23) | 25.0 | |
| March 1, 2021, 7 a.m. | 2.8 ppb (3) | 0.3 ppb (1) | 2.5 ppb (3) | 3.0 ppb (3) | 2.2 ppb (3) | 0.0 ppb (0) | 27.0 ppb (25) | 0.22 ppb (3) | 9.0 μg/m3 (9) | 4.5 μg/m3 (19) | 25.0 | |
| March 1, 2021, 6 a.m. | 3.0 ppb (3) | 0.4 ppb (1) | 2.8 ppb (3) | 3.0 ppb (3) | 2.4 ppb (3) | 0.0 ppb (0) | 30.0 ppb (28) | 0.23 ppb (3) | 11.0 μg/m3 (11) | 4.1 μg/m3 (18) | 28.0 | |
| March 1, 2021, 5 a.m. | 2.6 ppb (3) | 0.3 ppb (1) | 2.3 ppb (3) | 2.0 ppb (2) | 2.0 ppb (2) | 0.0 ppb (0) | 32.0 ppb (30) | 0.22 ppb (3) | 12.0 μg/m3 (12) | 3.6 μg/m3 (16) | 30.0 | |
| March 1, 2021, 4 a.m. | 2.1 ppb (2) | 0.1 ppb (1) | 1.9 ppb (2) | 2.0 ppb (2) | 1.7 ppb (2) | 0.0 ppb (0) | 34.0 ppb (32) | 0.22 ppb (3) | 10.0 μg/m3 (10) | 2.8 μg/m3 (12) | 32.0 | |
| March 1, 2021, 3 a.m. | 2.8 ppb (3) | 0.2 ppb (1) | 2.5 ppb (3) | 3.0 ppb (3) | 2.0 ppb (2) | 0.0 ppb (0) | 34.0 ppb (32) | 0.22 ppb (3) | 9.0 μg/m3 (9) | 2.9 μg/m3 (13) | 32.0 | |
| March 1, 2021, 2 a.m. | 10.3 ppb (10) | 0.6 ppb (1) | 7.5 ppb (8) | 10.0 ppb (10) | 6.8 ppb (7) | 0.0 ppb (0) | 27.0 ppb (25) | 0.3 ppb (4) | 14.0 μg/m3 (13) | 5.2 μg/m3 (22) | 25.0 | |
| March 1, 2021, 1 a.m. | 9.7 ppb (10) | 0.6 ppb (1) | 6.7 ppb (7) | 9.0 ppb (9) | 6.2 ppb (6) | 0.0 ppb (0) | 28.0 ppb (26) | 0.27 ppb (4) | 13.0 μg/m3 (13) | 4.2 μg/m3 (18) | 26.0 | |
| March 1, 2021, midnight | 3.8 ppb (4) | 0.3 ppb (1) | 3.8 ppb (4) | 4.0 ppb (4) | 3.4 ppb (4) | 0.0 ppb (0) | 35.0 ppb (33) | 0.23 ppb (3) | 11.0 μg/m3 (11) | 3.4 μg/m3 (15) | 33.0 | |
| Feb. 28, 2021, 11 p.m. | 2.7 ppb (3) | 0.3 ppb (1) | 2.6 ppb (3) | 2.0 ppb (2) | 2.2 ppb (3) | 0.0 ppb (0) | 37.0 ppb (35) | 0.22 ppb (3) | 11.0 μg/m3 (11) | 3.1 μg/m3 (13) | 35.0 | |
| Feb. 28, 2021, 10 p.m. | 2.7 ppb (3) | 0.3 ppb (1) | 2.4 ppb (3) | 2.0 ppb (2) | 1.9 ppb (2) | 0.0 ppb (0) | 37.0 ppb (35) | 0.21 ppb (3) | 10.0 μg/m3 (10) | 3.1 μg/m3 (13) | 35.0 | |
| Feb. 28, 2021, 9 p.m. | 1.8 ppb (2) | 0.1 ppb (1) | 1.7 ppb (2) | 2.0 ppb (2) | 1.5 ppb (2) | 0.0 ppb (0) | 37.0 ppb (35) | 0.2 ppb (3) | 9.0 μg/m3 (9) | 3.2 μg/m3 (14) | 35.0 | |
| Feb. 28, 2021, 8 p.m. | 1.8 ppb (2) | 0.1 ppb (1) | 1.6 ppb (2) | 2.0 ppb (2) | 1.4 ppb (2) | 0.0 ppb (0) | 37.0 ppb (35) | 0.2 ppb (3) | 10.0 μg/m3 (10) | 3.1 μg/m3 (13) | 35.0 | |
| Feb. 28, 2021, 7 p.m. | 2.2 ppb (3) | 0.2 ppb (1) | 2.0 ppb (2) | 2.0 ppb (2) | 1.4 ppb (2) | 0.0 ppb (0) | 36.0 ppb (34) | 0.2 ppb (3) | 9.0 μg/m3 (9) | 3.4 μg/m3 (15) | 34.0 | |
| Feb. 28, 2021, 6 p.m. | 2.6 ppb (3) | 0.3 ppb (1) | 2.2 ppb (3) | 2.0 ppb (2) | 1.8 ppb (2) | 0.0 ppb (0) | 34.0 ppb (32) | 0.2 ppb (3) | 9.0 μg/m3 (9) | 3.8 μg/m3 (16) | 32.0 | |
| Feb. 28, 2021, 5 p.m. | 2.1 ppb (2) | 0.2 ppb (1) | 2.0 ppb (2) | 2.0 ppb (2) | 1.7 ppb (2) | 0.0 ppb (0) | 32.0 ppb (30) | 0.2 ppb (3) | 10.0 μg/m3 (10) | 4.6 μg/m3 (20) | 30.0 | |
| Feb. 28, 2021, 4 p.m. | 2.2 ppb (3) | 0.1 ppb (1) | 1.9 ppb (2) | 2.0 ppb (2) | 1.7 ppb (2) | 0.0 ppb (0) | 31.0 ppb (29) | 0.2 ppb (3) | 13.0 μg/m3 (13) | 5.9 μg/m3 (25) | 29.0 | |
| Feb. 28, 2021, 3 p.m. | 2.5 ppb (3) | 0.1 ppb (1) | 2.3 ppb (3) | 2.0 ppb (2) | 2.0 ppb (2) | 0.0 ppb (0) | 29.0 ppb (27) | 0.19 ppb (3) | 15.0 μg/m3 (14) | 8.1 μg/m3 (34) | 34.0 | |
| Feb. 28, 2021, 2 p.m. | 2.6 ppb (3) | 0.1 ppb (1) | 2.9 ppb (3) | 3.0 ppb (3) | 2.3 ppb (3) | 0.0 ppb (0) | 26.0 ppb (25) | 0.2 ppb (3) | 18.0 μg/m3 (17) | 11.2 μg/m3 (47) | 47.0 | |
| Feb. 28, 2021, 1 p.m. | 3.0 ppb (3) | 0.4 ppb (1) | 3.9 ppb (4) | 3.0 ppb (3) | 2.7 ppb (3) | 0.0 ppb (0) | 15.0 ppb (14) | 0.22 ppb (3) | 17.0 μg/m3 (16) | 10.8 μg/m3 (46) | 46.0 |