Mexico City (Avenida 553) MX, MX: 19.4525, -99.086
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 8, 2021, 7 a.m. | N/A | N/A | N/A | 39.0 ppb (37) | N/A | 5.0 ppb (8) | 3.0 ppb (3) | 1.0 ppb (12) | N/A | N/A | 37.0 | |
| March 8, 2021, 6 a.m. | N/A | N/A | N/A | 38.0 ppb (36) | N/A | 5.0 ppb (8) | 6.0 ppb (6) | 1.0 ppb (12) | N/A | 25.0 μg/m3 (79) | 79.0 | |
| March 8, 2021, 5 a.m. | N/A | N/A | N/A | 31.0 ppb (30) | N/A | 3.0 ppb (5) | 14.0 ppb (13) | 0.8 ppb (10) | N/A | 19.0 μg/m3 (66) | 66.0 | |
| March 8, 2021, 4 a.m. | N/A | N/A | N/A | 26.0 ppb (25) | N/A | 3.0 ppb (5) | 21.0 ppb (20) | 0.7 ppb (8) | N/A | 16.0 μg/m3 (60) | 60.0 | |
| March 8, 2021, 3 a.m. | N/A | N/A | N/A | 25.0 ppb (24) | N/A | 3.0 ppb (5) | 25.0 ppb (24) | 0.6 ppb (7) | N/A | 6.0 μg/m3 (25) | 25.0 | |
| March 8, 2021, 2 a.m. | N/A | N/A | N/A | 13.0 ppb (13) | N/A | 2.0 ppb (3) | 38.0 ppb (36) | 0.4 ppb (5) | N/A | 21.0 μg/m3 (70) | 70.0 | |
| March 8, 2021, 1 a.m. | N/A | N/A | N/A | 9.0 ppb (9) | N/A | 3.0 ppb (5) | 42.0 ppb (39) | 0.4 ppb (5) | N/A | 25.0 μg/m3 (79) | 79.0 | |
| March 8, 2021, midnight | N/A | N/A | N/A | 12.0 ppb (12) | N/A | 5.0 ppb (8) | 49.0 ppb (46) | 0.4 ppb (5) | N/A | 18.0 μg/m3 (64) | 64.0 | |
| March 7, 2021, 11 p.m. | N/A | N/A | N/A | 12.0 ppb (12) | N/A | 3.0 ppb (5) | 59.0 ppb (65) | 0.5 ppb (6) | N/A | 18.0 μg/m3 (64) | 65.0 | |
| March 7, 2021, 10 p.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | 2.0 ppb (3) | 59.0 ppb (65) | 0.3 ppb (4) | N/A | 7.0 μg/m3 (30) | 65.0 | |
| March 7, 2021, 9 p.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | 3.0 ppb (5) | 53.0 ppb (50) | 0.3 ppb (4) | N/A | 24.0 μg/m3 (77) | 77.0 | |
| March 7, 2021, 8 p.m. | N/A | N/A | N/A | 7.0 ppb (7) | N/A | 7.0 ppb (10) | 90.0 ppb (112) | 0.5 ppb (6) | N/A | 25.0 μg/m3 (79) | 112.0 | |
| March 7, 2021, 7 p.m. | N/A | N/A | N/A | 8.0 ppb (8) | N/A | 7.0 ppb (10) | 93.0 ppb (113) | 0.6 ppb (7) | N/A | 32.0 μg/m3 (93) | 113.0 | |
| March 7, 2021, 6 p.m. | N/A | N/A | N/A | 11.0 ppb (11) | N/A | 9.0 ppb (13) | 67.0 ppb (91) | 0.5 ppb (6) | N/A | 32.0 μg/m3 (93) | 93.0 | |
| March 7, 2021, 5 p.m. | N/A | N/A | N/A | 19.0 ppb (18) | N/A | 16.0 ppb (23) | 49.0 ppb (46) | 0.7 ppb (8) | N/A | 26.0 μg/m3 (81) | 81.0 | |
| March 7, 2021, 4 p.m. | N/A | N/A | N/A | 22.0 ppb (21) | N/A | 22.0 ppb (32) | 30.0 ppb (28) | 0.8 ppb (10) | N/A | 17.0 μg/m3 (62) | 62.0 | |
| March 7, 2021, 3 p.m. | N/A | N/A | N/A | 17.0 ppb (17) | N/A | 17.0 ppb (25) | 17.0 ppb (16) | 0.6 ppb (7) | N/A | 25.0 μg/m3 (79) | 79.0 | |
| March 7, 2021, 2 p.m. | N/A | N/A | N/A | 19.0 ppb (18) | N/A | 3.0 ppb (5) | 8.0 ppb (8) | 0.6 ppb (7) | N/A | 23.0 μg/m3 (74) | 74.0 | |
| March 7, 2021, 1 p.m. | N/A | N/A | N/A | 21.0 ppb (20) | N/A | 3.0 ppb (5) | 6.0 ppb (6) | 0.5 ppb (6) | N/A | 26.0 μg/m3 (81) | 81.0 | |
| March 7, 2021, noon | N/A | N/A | N/A | 19.0 ppb (18) | N/A | 7.0 ppb (10) | 8.0 ppb (8) | 0.5 ppb (6) | N/A | 27.0 μg/m3 (83) | 83.0 | |
| March 7, 2021, 11 a.m. | N/A | N/A | N/A | 17.0 ppb (17) | N/A | 17.0 ppb (25) | 13.0 ppb (13) | 0.6 ppb (7) | N/A | 26.0 μg/m3 (81) | 81.0 | |
| March 7, 2021, 10 a.m. | N/A | N/A | N/A | 12.0 ppb (12) | N/A | 8.0 ppb (12) | 17.0 ppb (16) | 0.6 ppb (7) | N/A | 29.0 μg/m3 (87) | 87.0 | |
| March 7, 2021, 9 a.m. | N/A | N/A | N/A | 14.0 ppb (14) | N/A | 15.0 ppb (22) | 18.0 ppb (17) | 0.6 ppb (7) | N/A | 38.0 μg/m3 (108) | 108.0 | |
| March 7, 2021, 8 a.m. | N/A | N/A | N/A | 23.0 ppb (22) | N/A | 40.0 ppb (57) | 13.0 ppb (13) | 0.9 ppb (11) | N/A | 18.0 μg/m3 (64) | 64.0 | |
| March 7, 2021, 7 a.m. | N/A | N/A | N/A | 25.0 ppb (24) | N/A | 13.0 ppb (19) | 14.0 ppb (13) | 0.8 ppb (10) | N/A | N/A | 24.0 | |
| March 7, 2021, 6 a.m. | N/A | N/A | N/A | 40.0 ppb (38) | N/A | 4.0 ppb (6) | 6.0 ppb (6) | 1.1 ppb (13) | N/A | 28.0 μg/m3 (85) | 85.0 | |
| March 7, 2021, 5 a.m. | N/A | N/A | N/A | 34.0 ppb (33) | N/A | 2.0 ppb (3) | 13.0 ppb (13) | 1.0 ppb (12) | N/A | 19.0 μg/m3 (66) | 66.0 | |
| March 7, 2021, 4 a.m. | N/A | N/A | N/A | 27.0 ppb (26) | N/A | 1.0 ppb (2) | 21.0 ppb (20) | 0.7 ppb (8) | N/A | 10.0 μg/m3 (42) | 42.0 | |
| March 7, 2021, 3 a.m. | N/A | N/A | N/A | 15.0 ppb (15) | N/A | 1.0 ppb (2) | 36.0 ppb (34) | 0.5 ppb (6) | N/A | 10.0 μg/m3 (42) | 42.0 | |
| March 7, 2021, 2 a.m. | N/A | N/A | N/A | 16.0 ppb (16) | N/A | 2.0 ppb (3) | 36.0 ppb (34) | 0.5 ppb (6) | N/A | 29.0 μg/m3 (87) | 87.0 | |
| March 7, 2021, 1 a.m. | N/A | N/A | N/A | 21.0 ppb (20) | N/A | 5.0 ppb (8) | 42.0 ppb (39) | 0.6 ppb (7) | N/A | 40.0 μg/m3 (113) | 113.0 | |
| March 7, 2021, midnight | N/A | N/A | N/A | 23.0 ppb (22) | N/A | 4.0 ppb (6) | 78.0 ppb (105) | 0.7 ppb (8) | N/A | 42.0 μg/m3 (118) | 118.0 | |
| March 6, 2021, 11 p.m. | N/A | N/A | N/A | 12.0 ppb (12) | N/A | 3.0 ppb (5) | 117.0 ppb (126) | 0.7 ppb (8) | N/A | 33.0 μg/m3 (95) | 126.0 | |
| March 6, 2021, 10 p.m. | N/A | N/A | N/A | 8.0 ppb (8) | N/A | 3.0 ppb (5) | 116.0 ppb (125) | 0.6 ppb (7) | N/A | 26.0 μg/m3 (81) | 125.0 | |
| March 6, 2021, 9 p.m. | N/A | N/A | N/A | 7.0 ppb (7) | N/A | 3.0 ppb (5) | 108.0 ppb (121) | 0.6 ppb (7) | N/A | 22.0 μg/m3 (72) | 121.0 | |
| March 6, 2021, 8 p.m. | N/A | N/A | N/A | 9.0 ppb (9) | N/A | 2.0 ppb (3) | 94.0 ppb (114) | 0.6 ppb (7) | N/A | 30.0 μg/m3 (89) | 114.0 | |
| March 6, 2021, 7 p.m. | N/A | N/A | N/A | 12.0 ppb (12) | N/A | 2.0 ppb (3) | 74.0 ppb (103) | 0.6 ppb (7) | N/A | 23.0 μg/m3 (74) | 103.0 | |
| March 6, 2021, 6 p.m. | N/A | N/A | N/A | 15.0 ppb (15) | N/A | 2.0 ppb (3) | 54.0 ppb (50) | 0.6 ppb (7) | N/A | 12.0 μg/m3 (50) | 50.0 | |
| March 6, 2021, 5 p.m. | N/A | N/A | N/A | 12.0 ppb (12) | N/A | 2.0 ppb (3) | 41.0 ppb (38) | 0.5 ppb (6) | N/A | 15.0 μg/m3 (58) | 58.0 | |
| March 6, 2021, 4 p.m. | N/A | N/A | N/A | 17.0 ppb (17) | N/A | 2.0 ppb (3) | 28.0 ppb (26) | 0.5 ppb (6) | N/A | 13.0 μg/m3 (53) | 53.0 | |
| March 6, 2021, 3 p.m. | N/A | N/A | N/A | 20.0 ppb (19) | N/A | 2.0 ppb (3) | 23.0 ppb (22) | 0.5 ppb (6) | N/A | 13.0 μg/m3 (53) | 53.0 | |
| March 6, 2021, 2 p.m. | N/A | N/A | N/A | 15.0 ppb (15) | N/A | 2.0 ppb (3) | 26.0 ppb (25) | 0.5 ppb (6) | N/A | 14.0 μg/m3 (55) | 55.0 | |
| March 6, 2021, 1 p.m. | N/A | N/A | N/A | 14.0 ppb (14) | N/A | 2.0 ppb (3) | 26.0 ppb (25) | 0.4 ppb (5) | N/A | 22.0 μg/m3 (72) | 72.0 | |
| March 6, 2021, noon | N/A | N/A | N/A | 8.0 ppb (8) | N/A | 3.0 ppb (5) | 33.0 ppb (31) | 0.4 ppb (5) | N/A | 22.0 μg/m3 (72) | 72.0 | |
| March 6, 2021, 11 a.m. | N/A | N/A | N/A | 9.0 ppb (9) | N/A | 2.0 ppb (3) | 30.0 ppb (28) | 0.4 ppb (5) | N/A | 23.0 μg/m3 (74) | 74.0 | |
| March 6, 2021, 10 a.m. | N/A | N/A | N/A | 5.0 ppb (5) | N/A | 2.0 ppb (3) | 36.0 ppb (34) | 0.4 ppb (5) | N/A | 27.0 μg/m3 (83) | 83.0 | |
| March 6, 2021, 9 a.m. | N/A | N/A | N/A | 5.0 ppb (5) | N/A | 2.0 ppb (3) | 36.0 ppb (34) | 0.5 ppb (6) | N/A | 29.0 μg/m3 (87) | 87.0 | |
| March 6, 2021, 8 a.m. | N/A | N/A | N/A | 7.0 ppb (7) | N/A | 3.0 ppb (5) | 34.0 ppb (32) | 0.5 ppb (6) | N/A | 22.0 μg/m3 (72) | 72.0 | |
| March 6, 2021, 7 a.m. | N/A | N/A | N/A | 18.0 ppb (17) | N/A | 3.0 ppb (5) | 30.0 ppb (28) | 0.6 ppb (7) | N/A | N/A | 28.0 | |
| March 6, 2021, 6 a.m. | N/A | N/A | N/A | 45.0 ppb (43) | N/A | 2.0 ppb (3) | 10.0 ppb (10) | 1.1 ppb (13) | N/A | 23.0 μg/m3 (74) | 74.0 | |
| March 6, 2021, 5 a.m. | N/A | N/A | N/A | 45.0 ppb (43) | N/A | 3.0 ppb (5) | 13.0 ppb (13) | 1.1 ppb (13) | N/A | 24.0 μg/m3 (77) | 77.0 | |
| March 6, 2021, 4 a.m. | N/A | N/A | N/A | 22.0 ppb (21) | N/A | 3.0 ppb (5) | 34.0 ppb (32) | 0.6 ppb (7) | N/A | 21.0 μg/m3 (70) | 70.0 | |
| March 6, 2021, 3 a.m. | N/A | N/A | N/A | 16.0 ppb (16) | N/A | 3.0 ppb (5) | 40.0 ppb (38) | 0.4 ppb (5) | N/A | 27.0 μg/m3 (83) | 83.0 | |
| March 6, 2021, 2 a.m. | N/A | N/A | N/A | 12.0 ppb (12) | N/A | 3.0 ppb (5) | 47.0 ppb (44) | 0.4 ppb (5) | N/A | 30.0 μg/m3 (89) | 89.0 | |
| March 6, 2021, 1 a.m. | N/A | N/A | N/A | 12.0 ppb (12) | N/A | 5.0 ppb (8) | 58.0 ppb (61) | 0.4 ppb (5) | N/A | 20.0 μg/m3 (68) | 68.0 | |
| March 6, 2021, midnight | N/A | N/A | N/A | 8.0 ppb (8) | N/A | 9.0 ppb (13) | 68.0 ppb (94) | 0.3 ppb (4) | N/A | 19.0 μg/m3 (66) | 94.0 | |
| March 5, 2021, 11 p.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | 9.0 ppb (13) | 71.0 ppb (101) | 0.3 ppb (4) | N/A | 17.0 μg/m3 (62) | 101.0 | |
| March 5, 2021, 10 p.m. | N/A | N/A | N/A | 5.0 ppb (5) | N/A | 6.0 ppb (9) | 75.0 ppb (104) | 0.4 ppb (5) | N/A | 10.0 μg/m3 (42) | 104.0 | |
| March 5, 2021, 9 p.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | 3.0 ppb (5) | 69.0 ppb (97) | 0.4 ppb (5) | N/A | 6.0 μg/m3 (25) | 97.0 | |
| March 5, 2021, 8 p.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | 2.0 ppb (3) | 74.0 ppb (103) | 0.4 ppb (5) | N/A | 20.0 μg/m3 (68) | 103.0 | |
| March 5, 2021, 7 p.m. | N/A | N/A | N/A | 8.0 ppb (8) | N/A | 3.0 ppb (5) | 71.0 ppb (101) | 0.4 ppb (5) | N/A | 27.0 μg/m3 (83) | 101.0 | |
| March 5, 2021, 6 p.m. | N/A | N/A | N/A | 24.0 ppb (23) | N/A | 3.0 ppb (5) | 71.0 ppb (101) | 0.7 ppb (8) | N/A | 36.0 μg/m3 (103) | 103.0 | |
| March 5, 2021, 5 p.m. | N/A | N/A | N/A | 23.0 ppb (22) | N/A | 3.0 ppb (5) | 54.0 ppb (50) | 0.6 ppb (7) | N/A | 41.0 μg/m3 (115) | 115.0 | |
| March 5, 2021, 4 p.m. | N/A | N/A | N/A | 41.0 ppb (39) | N/A | 4.0 ppb (6) | 28.0 ppb (26) | 1.0 ppb (12) | N/A | 32.0 μg/m3 (93) | 93.0 | |
| March 5, 2021, 3 p.m. | N/A | N/A | N/A | 42.0 ppb (40) | N/A | 4.0 ppb (6) | 8.0 ppb (8) | 1.2 ppb (14) | N/A | 32.0 μg/m3 (93) | 93.0 | |
| March 5, 2021, 2 p.m. | N/A | N/A | N/A | 36.0 ppb (34) | N/A | 3.0 ppb (5) | 4.0 ppb (4) | 1.1 ppb (13) | N/A | 42.0 μg/m3 (118) | 118.0 | |
| March 5, 2021, 1 p.m. | N/A | N/A | N/A | 36.0 ppb (34) | N/A | 2.0 ppb (3) | 4.0 ppb (4) | 0.7 ppb (8) | N/A | 40.0 μg/m3 (113) | 113.0 | |
| March 5, 2021, noon | N/A | N/A | N/A | 34.0 ppb (33) | N/A | 2.0 ppb (3) | 4.0 ppb (4) | 0.6 ppb (7) | N/A | 35.0 μg/m3 (100) | 100.0 | |
| March 5, 2021, 11 a.m. | N/A | N/A | N/A | 25.0 ppb (24) | N/A | 2.0 ppb (3) | 13.0 ppb (13) | 0.5 ppb (6) | N/A | 30.0 μg/m3 (89) | 89.0 | |
| March 5, 2021, 10 a.m. | N/A | N/A | N/A | 29.0 ppb (28) | N/A | 2.0 ppb (3) | 10.0 ppb (10) | 0.5 ppb (6) | N/A | 28.0 μg/m3 (85) | 85.0 | |
| March 5, 2021, 9 a.m. | N/A | N/A | N/A | 32.0 ppb (31) | N/A | 1.0 ppb (2) | 8.0 ppb (8) | 0.6 ppb (7) | N/A | 19.0 μg/m3 (66) | 66.0 | |
| March 5, 2021, 8 a.m. | N/A | N/A | N/A | 30.0 ppb (29) | N/A | 1.0 ppb (2) | 13.0 ppb (13) | 0.6 ppb (7) | N/A | 11.0 μg/m3 (46) | 46.0 | |
| March 5, 2021, 7 a.m. | N/A | N/A | N/A | 23.0 ppb (22) | N/A | 1.0 ppb (2) | 20.0 ppb (19) | 0.5 ppb (6) | N/A | N/A | 22.0 | |
| March 5, 2021, 6 a.m. | N/A | N/A | N/A | 23.0 ppb (22) | N/A | 1.0 ppb (2) | 23.0 ppb (22) | 0.6 ppb (7) | N/A | 9.0 μg/m3 (38) | 38.0 | |
| March 5, 2021, 5 a.m. | N/A | N/A | N/A | 18.0 ppb (17) | N/A | 1.0 ppb (2) | 30.0 ppb (28) | 0.6 ppb (7) | N/A | 18.0 μg/m3 (64) | 64.0 | |
| March 5, 2021, 4 a.m. | N/A | N/A | N/A | 16.0 ppb (16) | N/A | 1.0 ppb (2) | 31.0 ppb (29) | 0.4 ppb (5) | N/A | 21.0 μg/m3 (70) | 70.0 | |
| March 5, 2021, 3 a.m. | N/A | N/A | N/A | 16.0 ppb (16) | N/A | 1.0 ppb (2) | 30.0 ppb (28) | 0.3 ppb (4) | N/A | 28.0 μg/m3 (85) | 85.0 | |
| March 5, 2021, 2 a.m. | N/A | N/A | N/A | 13.0 ppb (13) | N/A | 2.0 ppb (3) | 50.0 ppb (47) | 0.5 ppb (6) | N/A | 27.0 μg/m3 (83) | 83.0 | |
| March 5, 2021, 1 a.m. | N/A | N/A | N/A | 13.0 ppb (13) | N/A | 4.0 ppb (6) | 55.0 ppb (51) | 0.4 ppb (5) | N/A | 26.0 μg/m3 (81) | 81.0 | |
| March 5, 2021, midnight | N/A | N/A | N/A | 10.0 ppb (10) | N/A | 8.0 ppb (12) | 79.0 ppb (106) | 0.4 ppb (5) | N/A | 23.0 μg/m3 (74) | 106.0 | |
| March 4, 2021, 11 p.m. | N/A | N/A | N/A | 7.0 ppb (7) | N/A | 2.0 ppb (3) | 78.0 ppb (105) | 0.3 ppb (4) | N/A | 14.0 μg/m3 (55) | 105.0 | |
| March 4, 2021, 10 p.m. | N/A | N/A | N/A | 5.0 ppb (5) | N/A | 2.0 ppb (3) | 81.0 ppb (107) | 0.4 ppb (5) | N/A | 19.0 μg/m3 (66) | 107.0 | |
| March 4, 2021, 9 p.m. | N/A | N/A | N/A | 5.0 ppb (5) | N/A | 2.0 ppb (3) | 90.0 ppb (112) | 0.4 ppb (5) | N/A | 9.0 μg/m3 (38) | 112.0 | |
| March 4, 2021, 8 p.m. | N/A | N/A | N/A | 5.0 ppb (5) | N/A | 2.0 ppb (3) | 88.0 ppb (110) | 0.4 ppb (5) | N/A | 19.0 μg/m3 (66) | 110.0 | |
| March 4, 2021, 7 p.m. | N/A | N/A | N/A | 9.0 ppb (9) | N/A | 2.0 ppb (3) | 78.0 ppb (105) | 0.5 ppb (6) | N/A | 35.0 μg/m3 (100) | 105.0 | |
| March 4, 2021, 6 p.m. | N/A | N/A | N/A | 19.0 ppb (18) | N/A | 3.0 ppb (5) | 73.0 ppb (103) | 0.7 ppb (8) | N/A | 33.0 μg/m3 (95) | 103.0 | |
| March 4, 2021, 5 p.m. | N/A | N/A | N/A | 41.0 ppb (39) | N/A | 4.0 ppb (6) | 50.0 ppb (47) | 0.9 ppb (11) | N/A | 32.0 μg/m3 (93) | 93.0 | |
| March 4, 2021, 4 p.m. | N/A | N/A | N/A | 33.0 ppb (32) | N/A | 4.0 ppb (6) | 34.0 ppb (32) | 0.8 ppb (10) | N/A | 37.0 μg/m3 (105) | 105.0 | |
| March 4, 2021, 3 p.m. | N/A | N/A | N/A | 39.0 ppb (37) | N/A | 4.0 ppb (6) | 13.0 ppb (13) | 1.1 ppb (13) | N/A | 49.0 μg/m3 (135) | 135.0 | |
| March 4, 2021, 2 p.m. | N/A | N/A | N/A | 38.0 ppb (36) | N/A | 3.0 ppb (5) | 4.0 ppb (4) | 1.1 ppb (13) | N/A | 44.0 μg/m3 (122) | 122.0 | |
| March 4, 2021, 1 p.m. | N/A | N/A | N/A | 39.0 ppb (37) | N/A | 2.0 ppb (3) | 4.0 ppb (4) | 0.7 ppb (8) | N/A | 49.0 μg/m3 (135) | 135.0 | |
| March 4, 2021, noon | N/A | N/A | N/A | 39.0 ppb (37) | N/A | 2.0 ppb (3) | 4.0 ppb (4) | 0.5 ppb (6) | N/A | 35.0 μg/m3 (100) | 100.0 | |
| March 4, 2021, 11 a.m. | N/A | N/A | N/A | 33.0 ppb (32) | N/A | 2.0 ppb (3) | 10.0 ppb (10) | 0.5 ppb (6) | N/A | 30.0 μg/m3 (89) | 89.0 | |
| March 4, 2021, 10 a.m. | N/A | N/A | N/A | 32.0 ppb (31) | N/A | 2.0 ppb (3) | 14.0 ppb (13) | 0.5 ppb (6) | N/A | 31.0 μg/m3 (91) | 91.0 | |
| March 4, 2021, 9 a.m. | N/A | N/A | N/A | 22.0 ppb (21) | N/A | 1.0 ppb (2) | 26.0 ppb (25) | 0.5 ppb (6) | N/A | 33.0 μg/m3 (95) | 95.0 | |
| March 4, 2021, 8 a.m. | N/A | N/A | N/A | 19.0 ppb (18) | N/A | 1.0 ppb (2) | 33.0 ppb (31) | 0.5 ppb (6) | N/A | 35.0 μg/m3 (100) | 100.0 | |
| March 4, 2021, 7 a.m. | N/A | N/A | N/A | 33.0 ppb (32) | N/A | 2.0 ppb (3) | 22.0 ppb (21) | 0.7 ppb (8) | N/A | N/A | 32.0 | |
| March 4, 2021, 6 a.m. | N/A | N/A | N/A | 30.0 ppb (29) | N/A | 2.0 ppb (3) | 31.0 ppb (29) | 0.7 ppb (8) | N/A | 20.0 μg/m3 (68) | 68.0 | |
| March 4, 2021, 5 a.m. | N/A | N/A | N/A | 22.0 ppb (21) | N/A | 1.0 ppb (2) | 39.0 ppb (37) | 0.7 ppb (8) | N/A | 23.0 μg/m3 (74) | 74.0 | |
| March 4, 2021, 4 a.m. | N/A | N/A | N/A | 12.0 ppb (12) | N/A | 1.0 ppb (2) | 52.0 ppb (49) | 0.4 ppb (5) | N/A | 34.0 μg/m3 (98) | 98.0 | |
| March 4, 2021, 3 a.m. | N/A | N/A | N/A | 12.0 ppb (12) | N/A | 2.0 ppb (3) | 52.0 ppb (49) | 0.4 ppb (5) | N/A | 35.0 μg/m3 (100) | 100.0 | |
| March 4, 2021, 2 a.m. | N/A | N/A | N/A | 13.0 ppb (13) | N/A | 3.0 ppb (5) | 59.0 ppb (65) | 0.5 ppb (6) | N/A | 35.0 μg/m3 (100) | 100.0 | |
| March 4, 2021, 1 a.m. | N/A | N/A | N/A | 10.0 ppb (10) | N/A | 6.0 ppb (9) | 69.0 ppb (97) | 0.5 ppb (6) | N/A | 25.0 μg/m3 (79) | 97.0 | |
| March 4, 2021, midnight | N/A | N/A | N/A | 6.0 ppb (6) | N/A | 5.0 ppb (8) | 80.0 ppb (106) | 0.4 ppb (5) | N/A | 29.0 μg/m3 (87) | 106.0 | |
| March 3, 2021, 11 p.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | 4.0 ppb (6) | 85.0 ppb (109) | 0.4 ppb (5) | N/A | 23.0 μg/m3 (74) | 109.0 | |
| March 3, 2021, 10 p.m. | N/A | N/A | N/A | 5.0 ppb (5) | N/A | 5.0 ppb (8) | 90.0 ppb (112) | 0.5 ppb (6) | N/A | 24.0 μg/m3 (77) | 112.0 | |
| March 3, 2021, 9 p.m. | N/A | N/A | N/A | 5.0 ppb (5) | N/A | 5.0 ppb (8) | 89.0 ppb (111) | 0.5 ppb (6) | N/A | 16.0 μg/m3 (60) | 111.0 | |
| March 3, 2021, 8 p.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | 6.0 ppb (9) | 76.0 ppb (104) | 0.5 ppb (6) | N/A | 24.0 μg/m3 (77) | 104.0 | |
| March 3, 2021, 7 p.m. | N/A | N/A | N/A | 10.0 ppb (10) | N/A | 11.0 ppb (16) | 70.0 ppb (100) | 0.5 ppb (6) | N/A | 32.0 μg/m3 (93) | 100.0 | |
| March 3, 2021, 6 p.m. | N/A | N/A | N/A | 17.0 ppb (17) | N/A | 12.0 ppb (18) | 59.0 ppb (65) | 0.7 ppb (8) | N/A | 35.0 μg/m3 (100) | 100.0 | |
| March 3, 2021, 5 p.m. | N/A | N/A | N/A | 29.0 ppb (28) | N/A | 12.0 ppb (18) | 42.0 ppb (39) | 0.9 ppb (11) | N/A | N/A | 39.0 | |
| March 3, 2021, 4 p.m. | N/A | N/A | N/A | 31.0 ppb (30) | N/A | 8.0 ppb (12) | 24.0 ppb (23) | 0.9 ppb (11) | N/A | N/A | 30.0 | |
| March 3, 2021, 1 p.m. | N/A | N/A | N/A | 28.0 ppb (27) | N/A | 15.0 ppb (22) | 3.0 ppb (3) | 0.8 ppb (10) | N/A | 30.0 μg/m3 (89) | 89.0 | |
| March 3, 2021, noon | N/A | N/A | N/A | 31.0 ppb (30) | N/A | 19.0 ppb (28) | 4.0 ppb (4) | 0.6 ppb (7) | N/A | 37.0 μg/m3 (105) | 105.0 | |
| March 3, 2021, 11 a.m. | N/A | N/A | N/A | 32.0 ppb (31) | N/A | 71.0 ppb (95) | 4.0 ppb (4) | 0.7 ppb (8) | N/A | 32.0 μg/m3 (93) | 95.0 | |
| March 3, 2021, 10 a.m. | N/A | N/A | N/A | 36.0 ppb (34) | N/A | 22.0 ppb (32) | 3.0 ppb (3) | 0.7 ppb (8) | N/A | 25.0 μg/m3 (79) | 79.0 | |
| March 3, 2021, 9 a.m. | N/A | N/A | N/A | 35.0 ppb (34) | N/A | 94.0 ppb (110) | 5.0 ppb (5) | 9.9 ppb (108) | N/A | 31.0 μg/m3 (91) | 110.0 | |
| March 3, 2021, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (41) | N/A | N/A | 28.0 μg/m3 (85) | 85.0 | |
| March 3, 2021, 7 a.m. | N/A | N/A | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (2) | N/A | 0.2 ppb (3) | N/A | N/A | 3.0 | |
| March 3, 2021, 6 a.m. | N/A | N/A | N/A | 22.0 ppb (21) | N/A | 2.0 ppb (3) | 35.0 ppb (33) | 0.8 ppb (10) | N/A | 31.0 μg/m3 (91) | 91.0 | |
| March 3, 2021, 5 a.m. | N/A | N/A | N/A | 21.0 ppb (20) | N/A | 2.0 ppb (3) | 38.0 ppb (36) | 0.8 ppb (10) | N/A | 42.0 μg/m3 (118) | 118.0 | |
| March 3, 2021, 4 a.m. | N/A | N/A | N/A | 26.0 ppb (25) | N/A | 2.0 ppb (3) | 44.0 ppb (41) | 0.8 ppb (10) | N/A | 35.0 μg/m3 (100) | 100.0 | |
| March 3, 2021, 3 a.m. | N/A | N/A | N/A | 22.0 ppb (21) | N/A | 2.0 ppb (3) | 53.0 ppb (50) | 0.7 ppb (8) | N/A | 32.0 μg/m3 (93) | 93.0 | |
| March 3, 2021, 2 a.m. | N/A | N/A | N/A | 18.0 ppb (17) | N/A | 2.0 ppb (3) | 57.0 ppb (58) | 0.6 ppb (7) | N/A | 30.0 μg/m3 (89) | 89.0 | |
| March 3, 2021, 1 a.m. | N/A | N/A | N/A | 11.0 ppb (11) | N/A | 2.0 ppb (3) | 64.0 ppb (81) | 0.5 ppb (6) | N/A | 34.0 μg/m3 (98) | 98.0 | |
| March 3, 2021, midnight | N/A | N/A | N/A | 9.0 ppb (9) | N/A | 2.0 ppb (3) | 78.0 ppb (105) | 0.5 ppb (6) | N/A | 28.0 μg/m3 (85) | 105.0 | |
| March 2, 2021, 11 p.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | 3.0 ppb (5) | 107.0 ppb (120) | 0.5 ppb (6) | N/A | 26.0 μg/m3 (81) | 120.0 | |
| March 2, 2021, 10 p.m. | N/A | N/A | N/A | 5.0 ppb (5) | N/A | 4.0 ppb (6) | 109.0 ppb (122) | 0.5 ppb (6) | N/A | 22.0 μg/m3 (72) | 122.0 | |
| March 2, 2021, 9 p.m. | N/A | N/A | N/A | 5.0 ppb (5) | N/A | 3.0 ppb (5) | 102.0 ppb (118) | 0.5 ppb (6) | N/A | 21.0 μg/m3 (70) | 118.0 | |
| March 2, 2021, 8 p.m. | N/A | N/A | N/A | 7.0 ppb (7) | N/A | 3.0 ppb (5) | 91.0 ppb (112) | 0.5 ppb (6) | N/A | 33.0 μg/m3 (95) | 112.0 | |
| March 2, 2021, 7 p.m. | N/A | N/A | N/A | 11.0 ppb (11) | N/A | 3.0 ppb (5) | 88.0 ppb (110) | 0.6 ppb (7) | N/A | 34.0 μg/m3 (98) | 110.0 | |
| March 2, 2021, 6 p.m. | N/A | N/A | N/A | 17.0 ppb (17) | N/A | 3.0 ppb (5) | 70.0 ppb (100) | 0.7 ppb (8) | N/A | 36.0 μg/m3 (103) | 103.0 | |
| March 2, 2021, 5 p.m. | N/A | N/A | N/A | 23.0 ppb (22) | N/A | 3.0 ppb (5) | 49.0 ppb (46) | 0.8 ppb (10) | N/A | 39.0 μg/m3 (110) | 110.0 | |
| March 2, 2021, 4 p.m. | N/A | N/A | N/A | 20.0 ppb (19) | N/A | 2.0 ppb (3) | 36.0 ppb (34) | 0.7 ppb (8) | N/A | 39.0 μg/m3 (110) | 110.0 | |
| March 2, 2021, 3 p.m. | N/A | N/A | N/A | 32.0 ppb (31) | N/A | 2.0 ppb (3) | 15.0 ppb (14) | 0.8 ppb (10) | N/A | 47.0 μg/m3 (130) | 130.0 | |
| March 2, 2021, 2 p.m. | N/A | N/A | N/A | 35.0 ppb (34) | N/A | 2.0 ppb (3) | 5.0 ppb (5) | 0.7 ppb (8) | N/A | 36.0 μg/m3 (103) | 103.0 | |
| March 2, 2021, 1 p.m. | N/A | N/A | N/A | 31.0 ppb (30) | N/A | 2.0 ppb (3) | 7.0 ppb (7) | 0.8 ppb (10) | N/A | 43.0 μg/m3 (120) | 120.0 | |
| March 2, 2021, noon | N/A | N/A | N/A | 22.0 ppb (21) | N/A | 1.0 ppb (2) | 15.0 ppb (14) | 0.5 ppb (6) | N/A | 40.0 μg/m3 (113) | 113.0 | |
| March 2, 2021, 11 a.m. | N/A | N/A | N/A | 19.0 ppb (18) | N/A | 2.0 ppb (3) | 17.0 ppb (16) | 0.4 ppb (5) | N/A | 34.0 μg/m3 (98) | 98.0 | |
| March 2, 2021, 10 a.m. | N/A | N/A | N/A | 7.0 ppb (7) | N/A | 2.0 ppb (3) | 38.0 ppb (36) | 0.4 ppb (5) | N/A | 31.0 μg/m3 (91) | 91.0 | |
| March 2, 2021, 9 a.m. | N/A | N/A | N/A | 5.0 ppb (5) | N/A | 2.0 ppb (3) | 44.0 ppb (41) | 0.4 ppb (5) | N/A | 40.0 μg/m3 (113) | 113.0 | |
| March 2, 2021, 8 a.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | 2.0 ppb (3) | 44.0 ppb (41) | 0.5 ppb (6) | N/A | 30.0 μg/m3 (89) | 89.0 | |
| March 2, 2021, 7 a.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | 2.0 ppb (3) | 46.0 ppb (43) | 0.5 ppb (6) | N/A | N/A | 43.0 | |
| March 2, 2021, 6 a.m. | N/A | N/A | N/A | 8.0 ppb (8) | N/A | 2.0 ppb (3) | 45.0 ppb (42) | 0.5 ppb (6) | N/A | 39.0 μg/m3 (110) | 110.0 | |
| March 2, 2021, 5 a.m. | N/A | N/A | N/A | 11.0 ppb (11) | N/A | 2.0 ppb (3) | 42.0 ppb (39) | 0.5 ppb (6) | N/A | 47.0 μg/m3 (130) | 130.0 | |
| March 2, 2021, 4 a.m. | N/A | N/A | N/A | 14.0 ppb (14) | N/A | 2.0 ppb (3) | 39.0 ppb (37) | 0.5 ppb (6) | N/A | 34.0 μg/m3 (98) | 98.0 | |
| March 2, 2021, 3 a.m. | N/A | N/A | N/A | 17.0 ppb (17) | N/A | 2.0 ppb (3) | 43.0 ppb (40) | 0.5 ppb (6) | N/A | 34.0 μg/m3 (98) | 98.0 | |
| March 2, 2021, 2 a.m. | N/A | N/A | N/A | 17.0 ppb (17) | N/A | 3.0 ppb (5) | 56.0 ppb (55) | 0.5 ppb (6) | N/A | 35.0 μg/m3 (100) | 100.0 | |
| March 2, 2021, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | |
| March 2, 2021, midnight | N/A | N/A | N/A | 10.0 ppb (10) | N/A | 4.0 ppb (6) | 88.0 ppb (110) | 0.4 ppb (5) | N/A | 22.0 μg/m3 (72) | 110.0 | |
| March 1, 2021, 11 p.m. | N/A | N/A | N/A | 11.0 ppb (11) | N/A | 4.0 ppb (6) | 92.0 ppb (113) | 0.5 ppb (6) | N/A | 24.0 μg/m3 (77) | 113.0 | |
| March 1, 2021, 10 p.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | 5.0 ppb (8) | 99.0 ppb (116) | 0.5 ppb (6) | N/A | 26.0 μg/m3 (81) | 116.0 | |
| March 1, 2021, 9 p.m. | N/A | N/A | N/A | 5.0 ppb (5) | N/A | 8.0 ppb (12) | 118.0 ppb (126) | 0.6 ppb (7) | N/A | 19.0 μg/m3 (66) | 126.0 | |
| March 1, 2021, 8 p.m. | N/A | N/A | N/A | 7.0 ppb (7) | N/A | 8.0 ppb (12) | 110.0 ppb (122) | 0.6 ppb (7) | N/A | 28.0 μg/m3 (85) | 122.0 | |
| March 1, 2021, 7 p.m. | N/A | N/A | N/A | 9.0 ppb (9) | N/A | 9.0 ppb (13) | 97.0 ppb (115) | 0.6 ppb (7) | N/A | 36.0 μg/m3 (103) | 115.0 | |
| March 1, 2021, 6 p.m. | N/A | N/A | N/A | 23.0 ppb (22) | N/A | 13.0 ppb (19) | 86.0 ppb (109) | 0.8 ppb (10) | N/A | 43.0 μg/m3 (120) | 120.0 | |
| March 1, 2021, 5 p.m. | N/A | N/A | N/A | 36.0 ppb (34) | N/A | 16.0 ppb (23) | 59.0 ppb (65) | 1.0 ppb (12) | N/A | 36.0 μg/m3 (103) | 103.0 | |
| March 1, 2021, 4 p.m. | N/A | N/A | N/A | 59.0 ppb (57) | N/A | 9.0 ppb (13) | 24.0 ppb (23) | 1.5 ppb (18) | N/A | 30.0 μg/m3 (89) | 89.0 | |
| March 1, 2021, 3 p.m. | N/A | N/A | N/A | 37.0 ppb (35) | N/A | 3.0 ppb (5) | 13.0 ppb (13) | 1.0 ppb (12) | N/A | 44.0 μg/m3 (122) | 122.0 | |
| March 1, 2021, 2 p.m. | N/A | N/A | N/A | 37.0 ppb (35) | N/A | 3.0 ppb (5) | 7.0 ppb (7) | 1.0 ppb (12) | N/A | 44.0 μg/m3 (122) | 122.0 | |
| March 1, 2021, 1 p.m. | N/A | N/A | N/A | 35.0 ppb (34) | N/A | 2.0 ppb (3) | 7.0 ppb (7) | 0.9 ppb (11) | N/A | 41.0 μg/m3 (115) | 115.0 | |
| March 1, 2021, noon | N/A | N/A | N/A | 21.0 ppb (20) | N/A | 2.0 ppb (3) | 18.0 ppb (17) | 0.6 ppb (7) | N/A | 32.0 μg/m3 (93) | 93.0 | |
| March 1, 2021, 11 a.m. | N/A | N/A | N/A | 25.0 ppb (24) | N/A | 2.0 ppb (3) | 16.0 ppb (15) | 0.6 ppb (7) | N/A | 38.0 μg/m3 (108) | 108.0 | |
| March 1, 2021, 10 a.m. | N/A | N/A | N/A | 23.0 ppb (22) | N/A | 2.0 ppb (3) | 23.0 ppb (22) | 0.6 ppb (7) | N/A | 36.0 μg/m3 (103) | 103.0 | |
| March 1, 2021, 9 a.m. | N/A | N/A | N/A | 44.0 ppb (42) | N/A | 3.0 ppb (5) | 11.0 ppb (11) | 1.0 ppb (12) | N/A | 30.0 μg/m3 (89) | 89.0 | |
| March 1, 2021, 8 a.m. | N/A | N/A | N/A | 56.0 ppb (54) | N/A | 3.0 ppb (5) | 4.0 ppb (4) | 1.3 ppb (15) | N/A | 25.0 μg/m3 (79) | 79.0 | |
| March 1, 2021, 7 a.m. | N/A | N/A | N/A | 31.0 ppb (30) | N/A | 2.0 ppb (3) | 26.0 ppb (25) | 0.9 ppb (11) | N/A | N/A | 30.0 | |
| March 1, 2021, 6 a.m. | N/A | N/A | N/A | 21.0 ppb (20) | N/A | 2.0 ppb (3) | 37.0 ppb (35) | 0.8 ppb (10) | N/A | 26.0 μg/m3 (81) | 81.0 |