Celaya (Avenida Brillante) MX, MX: 20.537683, -100.83994
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 25, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 ppb (16) | 0.26 ppb (3) | 49.0 μg/m3 (45) | 14.3 μg/m3 (55) | 55.0 | |
| March 25, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 ppb (12) | 0.31 ppb (3) | 62.0 μg/m3 (54) | 13.4 μg/m3 (53) | 54.0 | |
| March 25, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 ppb (12) | 0.38 ppb (4) | N/A | 22.9 μg/m3 (73) | 73.0 | |
| March 25, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 ppb (11) | 0.63 ppb (7) | 169.0 μg/m3 (107) | 30.1 μg/m3 (89) | 107.0 | |
| March 25, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | 1.64 ppb (18) | 156.0 μg/m3 (100) | 34.6 μg/m3 (98) | 100.0 | |
| March 25, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 6.0 ppb (5) | 1.3 ppb (14) | N/A | 30.8 μg/m3 (90) | 90.0 | |
| March 25, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 ppb (15) | 1.18 ppb (13) | N/A | 14.2 μg/m3 (55) | 55.0 | |
| March 25, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (32) | 0.72 ppb (8) | 48.0 μg/m3 (44) | 16.1 μg/m3 (59) | 59.0 | |
| March 25, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (36) | 0.5 ppb (6) | 48.0 μg/m3 (44) | 17.1 μg/m3 (61) | 61.0 | |
| March 24, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (37) | 0.52 ppb (6) | 62.0 μg/m3 (54) | 18.3 μg/m3 (63) | 63.0 | |
| March 24, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 49.0 ppb (38) | 0.59 ppb (7) | 91.0 μg/m3 (68) | 12.4 μg/m3 (51) | 68.0 | |
| March 24, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 ppb (40) | 0.66 ppb (7) | 68.0 μg/m3 (56) | 18.2 μg/m3 (63) | 63.0 | |
| March 24, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 52.0 ppb (40) | 0.7 ppb (8) | 83.0 μg/m3 (64) | 24.1 μg/m3 (76) | 76.0 | |
| March 24, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 ppb (38) | 0.82 ppb (9) | 91.0 μg/m3 (68) | 20.9 μg/m3 (69) | 69.0 | |
| March 24, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (32) | 0.82 ppb (9) | N/A | N/A | 32.0 | |
| March 24, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | 0.78 ppb (9) | 85.0 μg/m3 (65) | N/A | 65.0 | |
| March 24, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (17) | 0.79 ppb (9) | 86.0 μg/m3 (66) | 25.5 μg/m3 (79) | 79.0 | |
| March 24, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 ppb (12) | 0.82 ppb (9) | 83.0 μg/m3 (64) | 23.8 μg/m3 (75) | 75.0 | |
| March 24, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (5) | 0.79 ppb (9) | 43.0 μg/m3 (39) | 16.7 μg/m3 (60) | 60.0 | |
| March 24, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (2) | 0.66 ppb (7) | 36.0 μg/m3 (33) | 19.4 μg/m3 (66) | 66.0 | |
| March 24, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (3) | 0.52 ppb (6) | 39.0 μg/m3 (35) | 15.5 μg/m3 (57) | 57.0 | |
| March 24, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (3) | 0.54 ppb (6) | 52.0 μg/m3 (47) | 18.9 μg/m3 (65) | 65.0 | |
| March 24, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (3) | 0.6 ppb (7) | 40.0 μg/m3 (36) | 13.6 μg/m3 (53) | 53.0 | |
| March 24, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 ppb (9) | 0.49 ppb (5) | 55.0 μg/m3 (50) | 18.7 μg/m3 (64) | 64.0 | |
| March 24, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 ppb (6) | 0.55 ppb (6) | 123.0 μg/m3 (84) | 40.6 μg/m3 (113) | 113.0 | |
| March 24, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 1.06 ppb (12) | 165.0 μg/m3 (105) | 40.4 μg/m3 (112) | 112.0 | |
| March 24, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 1.6 ppb (18) | 151.0 μg/m3 (98) | N/A | 98.0 | |
| March 24, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 1.4 ppb (16) | 123.0 μg/m3 (84) | N/A | 84.0 | |
| March 24, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 1.69 ppb (19) | N/A | N/A | 19.0 | |
| March 24, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.43 ppb (27) | N/A | N/A | 27.0 | |
| March 24, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 ppb (11) | 1.07 ppb (12) | 89.0 μg/m3 (67) | 14.0 μg/m3 (54) | 67.0 | |
| March 24, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 ppb (27) | 0.52 ppb (6) | 42.0 μg/m3 (38) | N/A | 38.0 | |
| March 24, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (33) | 0.56 ppb (6) | 68.0 μg/m3 (56) | N/A | 56.0 | |
| March 23, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (34) | 0.69 ppb (8) | 95.0 μg/m3 (70) | 21.6 μg/m3 (70) | 70.0 | |
| March 23, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (34) | 0.65 ppb (7) | N/A | N/A | 34.0 | |
| March 23, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (34) | 0.73 ppb (8) | 74.0 μg/m3 (60) | N/A | 60.0 | |
| March 23, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (34) | 0.89 ppb (10) | 122.0 μg/m3 (84) | 21.9 μg/m3 (71) | 84.0 | |
| March 23, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (31) | 0.97 ppb (11) | 88.0 μg/m3 (66) | N/A | 66.0 | |
| March 23, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | 0.95 ppb (11) | 80.0 μg/m3 (62) | N/A | 62.0 | |
| March 23, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | 0.98 ppb (11) | 101.0 μg/m3 (73) | N/A | 73.0 | |
| March 23, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 ppb (15) | 1.13 ppb (13) | 122.0 μg/m3 (84) | 39.6 μg/m3 (110) | 110.0 | |
| March 23, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (5) | 1.33 ppb (15) | 113.0 μg/m3 (79) | N/A | 79.0 | |
| March 23, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | 1.31 ppb (15) | 102.0 μg/m3 (74) | 41.6 μg/m3 (115) | 115.0 | |
| March 23, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 1.26 ppb (14) | 41.0 μg/m3 (37) | N/A | 37.0 | |
| March 23, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 0.81 ppb (9) | 38.0 μg/m3 (35) | 17.0 μg/m3 (61) | 61.0 | |
| March 23, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 0.6 ppb (7) | 28.0 μg/m3 (25) | 17.7 μg/m3 (62) | 62.0 | |
| March 23, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (2) | 0.59 ppb (7) | 50.0 μg/m3 (45) | 12.6 μg/m3 (51) | 51.0 | |
| March 23, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 0.64 ppb (7) | 50.0 μg/m3 (45) | 19.2 μg/m3 (65) | 65.0 | |
| March 23, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (2) | 0.66 ppb (7) | 96.0 μg/m3 (70) | 31.3 μg/m3 (91) | 91.0 | |
| March 23, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 1.2 ppb (13) | 98.0 μg/m3 (72) | 21.2 μg/m3 (70) | 72.0 | |
| March 23, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (2) | 1.2 ppb (13) | 80.0 μg/m3 (62) | 14.8 μg/m3 (56) | 62.0 | |
| March 23, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 13.0 ppb (10) | 0.75 ppb (8) | 88.0 μg/m3 (66) | N/A | 66.0 | |
| March 23, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 ppb (8) | 1.25 ppb (14) | N/A | 12.9 μg/m3 (52) | 52.0 | |
| March 23, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (14) | 0.8 ppb (9) | N/A | N/A | 14.0 | |
| March 23, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | 0.68 ppb (8) | 233.0 μg/m3 (139) | N/A | 139.0 | |
| March 23, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 ppb (25) | 1.0 ppb (11) | 159.0 μg/m3 (102) | N/A | 102.0 | |
| March 23, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | 0.85 ppb (9) | 92.0 μg/m3 (68) | N/A | 68.0 | |
| March 22, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (33) | 0.99 ppb (11) | 80.0 μg/m3 (62) | N/A | 62.0 | |
| March 22, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (32) | 1.09 ppb (12) | 107.0 μg/m3 (76) | N/A | 76.0 | |
| March 22, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | 1.25 ppb (14) | 82.0 μg/m3 (64) | N/A | 64.0 | |
| March 22, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | 1.2 ppb (13) | 66.0 μg/m3 (56) | N/A | 56.0 | |
| March 22, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | 1.32 ppb (15) | 63.0 μg/m3 (54) | N/A | 54.0 | |
| March 22, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | 1.33 ppb (15) | 57.0 μg/m3 (51) | N/A | 51.0 | |
| March 22, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 ppb (22) | 1.29 ppb (14) | 69.0 μg/m3 (57) | N/A | 57.0 | |
| March 22, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 ppb (15) | 1.26 ppb (14) | 46.0 μg/m3 (42) | N/A | 42.0 | |
| March 22, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 ppb (12) | 1.29 ppb (14) | 80.0 μg/m3 (62) | 15.7 μg/m3 (58) | 62.0 | |
| March 22, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 6.0 ppb (5) | 1.5 ppb (17) | 92.0 μg/m3 (68) | N/A | 68.0 | |
| March 22, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 ppb (4) | 1.37 ppb (15) | 18.0 μg/m3 (16) | N/A | 16.0 | |
| March 22, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | 11.0 ppb (8) | 1.01 ppb (11) | 24.0 μg/m3 (22) | N/A | 22.0 | |
| March 22, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 ppb (12) | 0.97 ppb (11) | 21.0 μg/m3 (19) | 7.7 μg/m3 (32) | 32.0 | |
| March 22, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (14) | 0.95 ppb (11) | 20.0 μg/m3 (18) | 7.4 μg/m3 (31) | 31.0 | |
| March 22, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (17) | 0.96 ppb (11) | 18.0 μg/m3 (16) | 6.9 μg/m3 (29) | 29.0 | |
| March 22, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (18) | 1.01 ppb (11) | 23.0 μg/m3 (21) | 8.1 μg/m3 (34) | 34.0 | |
| March 22, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (18) | 1.2 ppb (13) | 44.0 μg/m3 (40) | 10.3 μg/m3 (43) | 43.0 | |
| March 22, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (18) | 1.39 ppb (15) | N/A | 14.7 μg/m3 (56) | 56.0 | |
| March 22, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 ppb (16) | 1.54 ppb (17) | N/A | 12.2 μg/m3 (50) | 50.0 | |
| March 22, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (18) | 1.53 ppb (17) | 228.0 μg/m3 (136) | N/A | 136.0 | |
| March 22, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 ppb (16) | 1.61 ppb (18) | N/A | 21.5 μg/m3 (70) | 70.0 | |
| March 22, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (17) | 1.89 ppb (21) | 107.0 μg/m3 (76) | 13.7 μg/m3 (54) | 76.0 | |
| March 22, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | 1.85 ppb (21) | 92.0 μg/m3 (68) | 13.2 μg/m3 (53) | 68.0 | |
| March 22, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (35) | 1.62 ppb (18) | 73.0 μg/m3 (59) | 13.4 μg/m3 (53) | 59.0 | |
| March 21, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 ppb (38) | 1.6 ppb (18) | 58.0 μg/m3 (52) | 12.5 μg/m3 (51) | 52.0 | |
| March 21, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 50.0 ppb (38) | 1.66 ppb (18) | 51.0 μg/m3 (46) | 10.5 μg/m3 (44) | 46.0 | |
| March 21, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (36) | 1.55 ppb (17) | 62.0 μg/m3 (54) | 8.8 μg/m3 (37) | 54.0 | |
| March 21, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 ppb (34) | 1.5 ppb (17) | 63.0 μg/m3 (54) | 11.7 μg/m3 (49) | 54.0 | |
| March 21, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (35) | 1.46 ppb (16) | 54.0 μg/m3 (49) | N/A | 49.0 | |
| March 21, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (32) | 1.44 ppb (16) | 58.0 μg/m3 (52) | N/A | 52.0 | |
| March 21, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | 1.49 ppb (17) | 54.0 μg/m3 (49) | N/A | 49.0 | |
| March 21, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 31.0 ppb (24) | 1.52 ppb (17) | 56.0 μg/m3 (50) | 14.4 μg/m3 (55) | 55.0 | |
| March 21, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (18) | 1.56 ppb (17) | 73.0 μg/m3 (59) | 10.7 μg/m3 (45) | 59.0 | |
| March 21, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 ppb (9) | 1.87 ppb (21) | 50.0 μg/m3 (45) | 8.8 μg/m3 (37) | 45.0 | |
| March 21, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 ppb (11) | 1.78 ppb (20) | 18.0 μg/m3 (16) | 7.6 μg/m3 (32) | 32.0 | |
| March 21, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (17) | 1.45 ppb (16) | 15.0 μg/m3 (14) | 7.6 μg/m3 (32) | 32.0 | |
| March 21, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | 1.42 ppb (16) | 17.0 μg/m3 (15) | 7.8 μg/m3 (32) | 32.0 | |
| March 21, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | 1.41 ppb (16) | 18.0 μg/m3 (16) | 7.1 μg/m3 (30) | 30.0 | |
| March 21, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 ppb (21) | 1.4 ppb (16) | 30.0 μg/m3 (27) | 7.8 μg/m3 (32) | 32.0 | |
| March 21, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 ppb (19) | 1.4 ppb (16) | 36.0 μg/m3 (33) | 10.0 μg/m3 (42) | 42.0 | |
| March 21, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (18) | 1.44 ppb (16) | 46.0 μg/m3 (42) | 11.7 μg/m3 (49) | 49.0 | |
| March 21, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 ppb (18) | 1.44 ppb (16) | 67.0 μg/m3 (56) | N/A | 56.0 | |
| March 21, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 ppb (16) | 1.5 ppb (17) | 124.0 μg/m3 (84) | 24.4 μg/m3 (76) | 84.0 | |
| March 21, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 ppb (13) | 1.86 ppb (21) | N/A | 31.4 μg/m3 (91) | 91.0 | |
| March 21, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 ppb (6) | 2.5 ppb (28) | 232.0 μg/m3 (138) | 26.7 μg/m3 (81) | 138.0 | |
| March 21, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 ppb (16) | 2.4 ppb (27) | N/A | 24.5 μg/m3 (77) | 77.0 | |
| March 21, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 ppb (28) | 1.85 ppb (21) | 80.0 μg/m3 (62) | N/A | 62.0 | |
| March 21, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (36) | 1.57 ppb (17) | 84.0 μg/m3 (64) | 21.1 μg/m3 (69) | 69.0 | |
| March 20, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 ppb (39) | 1.57 ppb (17) | 77.0 μg/m3 (61) | N/A | 61.0 | |
| March 20, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 ppb (36) | 1.52 ppb (17) | 79.0 μg/m3 (62) | 10.1 μg/m3 (42) | 62.0 | |
| March 20, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (33) | 1.56 ppb (17) | 69.0 μg/m3 (57) | 9.6 μg/m3 (40) | 57.0 | |
| March 20, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (35) | 1.56 ppb (17) | 61.0 μg/m3 (53) | 16.6 μg/m3 (60) | 60.0 | |
| March 20, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (32) | 1.6 ppb (18) | 76.0 μg/m3 (60) | 22.0 μg/m3 (71) | 71.0 | |
| March 20, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | 1.59 ppb (18) | 57.0 μg/m3 (51) | 23.2 μg/m3 (74) | 74.0 | |
| March 20, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 ppb (22) | 1.58 ppb (18) | 62.0 μg/m3 (54) | 22.2 μg/m3 (72) | 72.0 | |
| March 20, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (17) | 1.56 ppb (17) | 60.0 μg/m3 (52) | 18.1 μg/m3 (63) | 63.0 | |
| March 20, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 ppb (13) | 1.58 ppb (18) | 66.0 μg/m3 (56) | N/A | 56.0 | |
| March 20, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 ppb (7) | 1.74 ppb (19) | 47.0 μg/m3 (43) | 16.4 μg/m3 (59) | 59.0 | |
| March 20, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 ppb (6) | 1.64 ppb (18) | 35.0 μg/m3 (32) | 12.2 μg/m3 (50) | 50.0 | |
| March 20, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 ppb (12) | 1.47 ppb (16) | 25.0 μg/m3 (23) | 9.8 μg/m3 (41) | 41.0 | |
| March 20, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 ppb (13) | 1.45 ppb (16) | 28.0 μg/m3 (25) | 9.8 μg/m3 (41) | 41.0 | |
| March 20, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (14) | 1.43 ppb (16) | 27.0 μg/m3 (25) | 12.7 μg/m3 (51) | 51.0 | |
| March 20, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 ppb (15) | 1.43 ppb (16) | 32.0 μg/m3 (29) | N/A | 29.0 | |
| March 20, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 ppb (15) | 1.46 ppb (16) | 63.0 μg/m3 (54) | 12.5 μg/m3 (51) | 54.0 | |
| March 20, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 ppb (15) | 1.47 ppb (16) | 61.0 μg/m3 (53) | N/A | 53.0 | |
| March 20, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 ppb (15) | 1.48 ppb (16) | 52.0 μg/m3 (47) | 16.1 μg/m3 (59) | 59.0 | |
| March 20, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 ppb (7) | 1.79 ppb (20) | 75.0 μg/m3 (60) | N/A | 60.0 | |
| March 20, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 ppb (9) | 1.77 ppb (20) | N/A | N/A | 20.0 | |
| March 20, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 ppb (12) | 1.78 ppb (20) | 175.0 μg/m3 (110) | 20.1 μg/m3 (67) | 110.0 | |
| March 20, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (14) | 2.49 ppb (28) | 138.0 μg/m3 (92) | N/A | 92.0 | |
| March 20, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 ppb (26) | 1.9 ppb (21) | 114.0 μg/m3 (80) | N/A | 80.0 | |
| March 20, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 41.0 ppb (32) | 1.64 ppb (18) | 102.0 μg/m3 (74) | N/A | 74.0 | |
| March 19, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (33) | 1.56 ppb (17) | 133.0 μg/m3 (89) | N/A | 89.0 | |
| March 19, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 43.0 ppb (33) | 1.6 ppb (18) | 89.0 μg/m3 (67) | 15.4 μg/m3 (57) | 67.0 | |
| March 19, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 39.0 ppb (30) | 1.56 ppb (17) | 77.0 μg/m3 (61) | 32.4 μg/m3 (93) | 93.0 | |
| March 19, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | 1.57 ppb (17) | 53.0 μg/m3 (48) | 14.2 μg/m3 (55) | 55.0 | |
| March 19, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (35) | 1.6 ppb (18) | 57.0 μg/m3 (51) | 19.6 μg/m3 (66) | 66.0 | |
| March 19, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 38.0 ppb (29) | 1.58 ppb (18) | 58.0 μg/m3 (52) | 23.0 μg/m3 (73) | 73.0 | |
| March 19, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 ppb (23) | 1.57 ppb (17) | 50.0 μg/m3 (45) | 14.7 μg/m3 (56) | 56.0 | |
| March 19, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 ppb (18) | 1.52 ppb (17) | 69.0 μg/m3 (57) | 17.9 μg/m3 (63) | 63.0 | |
| March 19, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 ppb (11) | 1.66 ppb (18) | 75.0 μg/m3 (60) | 18.3 μg/m3 (63) | 63.0 | |
| March 19, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 ppb (6) | 1.75 ppb (19) | 33.0 μg/m3 (30) | 13.7 μg/m3 (54) | 54.0 | |
| March 19, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 ppb (7) | 1.6 ppb (18) | 29.0 μg/m3 (26) | 10.0 μg/m3 (42) | 42.0 | |
| March 19, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 ppb (9) | 1.49 ppb (17) | 36.0 μg/m3 (33) | 10.5 μg/m3 (44) | 44.0 | |
| March 19, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 ppb (12) | 1.43 ppb (16) | 29.0 μg/m3 (26) | 8.1 μg/m3 (34) | 34.0 | |
| March 19, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (14) | 1.42 ppb (16) | 21.0 μg/m3 (19) | 10.0 μg/m3 (42) | 42.0 | |
| March 19, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (14) | 1.42 ppb (16) | 30.0 μg/m3 (27) | 11.2 μg/m3 (47) | 47.0 | |
| March 19, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 ppb (15) | 1.47 ppb (16) | 38.0 μg/m3 (35) | 13.7 μg/m3 (54) | 54.0 | |
| March 19, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 ppb (15) | 1.49 ppb (17) | 35.0 μg/m3 (32) | 12.7 μg/m3 (51) | 51.0 | |
| March 19, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 ppb (15) | 1.5 ppb (17) | 81.0 μg/m3 (63) | 21.3 μg/m3 (70) | 70.0 | |
| March 19, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 ppb (5) | 1.79 ppb (20) | 97.0 μg/m3 (71) | 18.3 μg/m3 (63) | 71.0 | |
| March 19, 2019, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 13.0 ppb (10) | 1.82 ppb (20) | 67.0 μg/m3 (56) | N/A | 56.0 | |
| March 19, 2019, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 ppb (13) | 1.89 ppb (21) | 52.0 μg/m3 (47) | N/A | 47.0 | |
| March 19, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 ppb (16) | 1.73 ppb (19) | 85.0 μg/m3 (65) | N/A | 65.0 | |
| March 19, 2019, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (25) | 1.78 ppb (20) | 68.0 μg/m3 (56) | 12.0 μg/m3 (50) | 56.0 | |
| March 19, 2019, midnight | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 ppb (28) | 1.67 ppb (19) | 55.0 μg/m3 (50) | 17.9 μg/m3 (63) | 63.0 | |
| March 18, 2019, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (31) | 1.61 ppb (18) | 65.0 μg/m3 (55) | 18.6 μg/m3 (64) | 64.0 | |
| March 18, 2019, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 ppb (32) | 1.63 ppb (18) | 76.0 μg/m3 (60) | 18.5 μg/m3 (64) | 64.0 | |
| March 18, 2019, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (35) | 1.62 ppb (18) | 50.0 μg/m3 (45) | N/A | 45.0 | |
| March 18, 2019, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 ppb (37) | 1.63 ppb (18) | 49.0 μg/m3 (45) | 16.4 μg/m3 (59) | 59.0 | |
| March 18, 2019, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 46.0 ppb (35) | 1.67 ppb (19) | 54.0 μg/m3 (49) | 21.0 μg/m3 (69) | 69.0 | |
| March 18, 2019, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 40.0 ppb (31) | 1.52 ppb (17) | 48.0 μg/m3 (44) | 17.4 μg/m3 (61) | 61.0 | |
| March 18, 2019, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 ppb (25) | 1.53 ppb (17) | 39.0 μg/m3 (35) | N/A | 35.0 | |
| March 18, 2019, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 ppb (19) | 1.47 ppb (16) | 39.0 μg/m3 (35) | N/A | 35.0 | |
| March 18, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (14) | 1.47 ppb (16) | 34.0 μg/m3 (31) | N/A | 31.0 | |
| March 18, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 ppb (12) | 1.5 ppb (17) | 33.0 μg/m3 (30) | N/A | 30.0 | |
| March 18, 2019, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 ppb (14) | 1.48 ppb (16) | 25.0 μg/m3 (23) | N/A | 23.0 | |
| March 18, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 ppb (15) | 1.4 ppb (16) | 24.0 μg/m3 (22) | N/A | 22.0 | |
| March 18, 2019, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 ppb (15) | 1.39 ppb (15) | 14.0 μg/m3 (13) | N/A | 15.0 | |
| March 18, 2019, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 ppb (17) | 1.39 ppb (15) | 26.0 μg/m3 (24) | 9.3 μg/m3 (39) | 39.0 | |
| March 18, 2019, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 ppb (16) | 1.4 ppb (16) | 23.0 μg/m3 (21) | 9.4 μg/m3 (39) | 39.0 |