Phoenix (Estrella) AZ, US: 33.4265, -112.1181
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan. 18, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 25.0 μg/m3 (23) | 12.7 μg/m3 (51) | 51.0 | |
| Jan. 18, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 27.0 μg/m3 (25) | 11.5 μg/m3 (48) | 48.0 | |
| Jan. 18, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 40.0 μg/m3 (36) | 18.9 μg/m3 (65) | 65.0 | |
| Jan. 18, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 67.0 μg/m3 (56) | 21.4 μg/m3 (70) | 70.0 | |
| Jan. 18, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 69.0 μg/m3 (57) | 27.2 μg/m3 (82) | 82.0 | |
| Jan. 18, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 44.0 μg/m3 (40) | 20.5 μg/m3 (68) | 68.0 | |
| Jan. 18, 2020, noon | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 30.0 μg/m3 (27) | 19.2 μg/m3 (65) | 65.0 | |
| Jan. 18, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 58.0 μg/m3 (52) | 27.2 μg/m3 (82) | 82.0 | |
| Jan. 18, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 64.0 μg/m3 (54) | 30.7 μg/m3 (90) | 90.0 | |
| Jan. 18, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 57.0 μg/m3 (51) | 34.6 μg/m3 (98) | 98.0 | |
| Jan. 18, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 70.0 μg/m3 (58) | 37.0 μg/m3 (104) | 104.0 | |
| Jan. 18, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 78.0 μg/m3 (62) | 37.4 μg/m3 (105) | 105.0 | |
| Jan. 18, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 67.0 μg/m3 (56) | 32.3 μg/m3 (93) | 93.0 | |
| Jan. 18, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 87.0 μg/m3 (66) | 27.6 μg/m3 (83) | 83.0 | |
| Jan. 18, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 60.0 μg/m3 (52) | 22.3 μg/m3 (72) | 72.0 | |
| Jan. 18, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 30.0 μg/m3 (27) | 12.0 μg/m3 (50) | 50.0 | |
| Jan. 18, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 34.0 μg/m3 (31) | 9.6 μg/m3 (40) | 40.0 | |
| Jan. 18, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 29.0 μg/m3 (26) | 8.0 μg/m3 (33) | 33.0 | |
| Jan. 18, 2020, midnight | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 9.0 μg/m3 (8) | 4.2 μg/m3 (18) | 18.0 | |
| Jan. 17, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 8.0 μg/m3 (7) | 3.4 μg/m3 (14) | 14.0 | |
| Jan. 17, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 12.0 μg/m3 (11) | 7.5 μg/m3 (31) | 31.0 | |
| Jan. 17, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 17.0 μg/m3 (15) | 7.8 μg/m3 (32) | 32.0 | |
| Jan. 17, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 14.0 μg/m3 (13) | 5.9 μg/m3 (25) | 25.0 | |
| Jan. 17, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 33.0 μg/m3 (30) | 5.6 μg/m3 (23) | 30.0 | |
| Jan. 17, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 65.0 μg/m3 (55) | 16.7 μg/m3 (60) | 60.0 | |
| Jan. 17, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 84.0 μg/m3 (64) | 27.1 μg/m3 (82) | 82.0 | |
| Jan. 17, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | N/A | N/A | 3.0 | |
| Jan. 17, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (4) | N/A | N/A | N/A | N/A | 4.0 | |
| Jan. 17, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 67.0 μg/m3 (56) | 16.8 μg/m3 (60) | 60.0 | |
| Jan. 17, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 54.0 μg/m3 (49) | 11.2 μg/m3 (47) | 49.0 | |
| Jan. 17, 2020, noon | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 15.0 μg/m3 (14) | 6.4 μg/m3 (27) | 27.0 | |
| Jan. 17, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 11.0 μg/m3 (10) | 5.3 μg/m3 (22) | 22.0 | |
| Jan. 17, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 7.0 μg/m3 (6) | 4.1 μg/m3 (17) | 17.0 | |
| Jan. 17, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 8.0 μg/m3 (7) | 5.1 μg/m3 (21) | 21.0 | |
| Jan. 17, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 5.0 μg/m3 (5) | 3.3 μg/m3 (14) | 14.0 | |
| Jan. 17, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 4.0 μg/m3 (4) | 2.0 μg/m3 (8) | 8.0 | |
| Jan. 17, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 2.0 μg/m3 (2) | 1.9 μg/m3 (8) | 8.0 | |
| Jan. 17, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 3.0 μg/m3 (3) | 1.8 μg/m3 (8) | 8.0 | |
| Jan. 17, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 6.0 μg/m3 (5) | 3.0 μg/m3 (12) | 12.0 | |
| Jan. 17, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 8.0 μg/m3 (7) | 2.9 μg/m3 (12) | 12.0 | |
| Jan. 17, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 21.0 μg/m3 (19) | 6.6 μg/m3 (28) | 28.0 | |
| Jan. 17, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 90.0 μg/m3 (68) | 21.0 μg/m3 (69) | 69.0 | |
| Jan. 17, 2020, midnight | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 86.0 μg/m3 (66) | 22.5 μg/m3 (72) | 72.0 | |
| Jan. 16, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 57.0 μg/m3 (51) | 16.7 μg/m3 (60) | 60.0 | |
| Jan. 16, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 52.0 μg/m3 (47) | 12.7 μg/m3 (51) | 51.0 | |
| Jan. 16, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 46.0 μg/m3 (42) | 10.3 μg/m3 (43) | 43.0 | |
| Jan. 16, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 37.0 μg/m3 (34) | 6.9 μg/m3 (29) | 34.0 | |
| Jan. 16, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 62.0 μg/m3 (54) | 12.7 μg/m3 (51) | 54.0 | |
| Jan. 16, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 110.0 μg/m3 (78) | 24.1 μg/m3 (76) | 78.0 | |
| Jan. 16, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | 130.0 μg/m3 (88) | 29.3 μg/m3 (87) | 88.0 | |
| Jan. 16, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (4) | N/A | N/A | 80.0 μg/m3 (62) | 14.7 μg/m3 (56) | 62.0 | |
| Jan. 16, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (4) | N/A | N/A | 120.0 μg/m3 (82) | 21.7 μg/m3 (71) | 82.0 | |
| Jan. 16, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (4) | N/A | N/A | 112.0 μg/m3 (78) | 20.9 μg/m3 (69) | 78.0 | |
| Jan. 16, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (4) | N/A | N/A | 87.0 μg/m3 (66) | 25.8 μg/m3 (79) | 79.0 | |
| Jan. 16, 2020, noon | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 61.0 μg/m3 (53) | 23.0 μg/m3 (73) | 73.0 | |
| Jan. 16, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 66.0 μg/m3 (56) | 23.6 μg/m3 (75) | 75.0 | |
| Jan. 16, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 54.0 μg/m3 (49) | 21.0 μg/m3 (69) | 69.0 | |
| Jan. 16, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 39.0 μg/m3 (35) | 17.7 μg/m3 (62) | 62.0 | |
| Jan. 16, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 41.0 μg/m3 (37) | 19.5 μg/m3 (66) | 66.0 | |
| Jan. 16, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 54.0 μg/m3 (49) | 17.8 μg/m3 (62) | 62.0 | |
| Jan. 16, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 53.0 μg/m3 (48) | 17.6 μg/m3 (62) | 62.0 | |
| Jan. 16, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 60.0 μg/m3 (52) | 19.0 μg/m3 (65) | 65.0 | |
| Jan. 16, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 85.0 μg/m3 (65) | 20.1 μg/m3 (67) | 67.0 | |
| Jan. 16, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 71.0 μg/m3 (58) | 17.7 μg/m3 (62) | 62.0 | |
| Jan. 16, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 80.0 μg/m3 (62) | 16.1 μg/m3 (59) | 62.0 | |
| Jan. 16, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 78.0 μg/m3 (62) | 14.8 μg/m3 (56) | 62.0 | |
| Jan. 16, 2020, midnight | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 43.0 μg/m3 (39) | 12.8 μg/m3 (52) | 52.0 | |
| Jan. 15, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 37.0 μg/m3 (34) | 12.4 μg/m3 (51) | 51.0 | |
| Jan. 15, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 30.0 μg/m3 (27) | 11.3 μg/m3 (47) | 47.0 | |
| Jan. 15, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 22.0 μg/m3 (20) | 7.1 μg/m3 (30) | 30.0 | |
| Jan. 15, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 24.0 μg/m3 (22) | 9.5 μg/m3 (40) | 40.0 | |
| Jan. 15, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 35.0 μg/m3 (32) | 7.3 μg/m3 (30) | 32.0 | |
| Jan. 15, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 47.0 μg/m3 (43) | 7.6 μg/m3 (32) | 43.0 | |
| Jan. 15, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 70.0 μg/m3 (58) | 17.5 μg/m3 (62) | 62.0 | |
| Jan. 15, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (4) | N/A | N/A | 80.0 μg/m3 (62) | 20.9 μg/m3 (69) | 69.0 | |
| Jan. 15, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | 153.0 μg/m3 (99) | 35.4 μg/m3 (100) | 100.0 | |
| Jan. 15, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | 107.0 μg/m3 (76) | 22.6 μg/m3 (73) | 76.0 | |
| Jan. 15, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 88.0 μg/m3 (66) | 24.1 μg/m3 (76) | 76.0 | |
| Jan. 15, 2020, noon | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (4) | N/A | N/A | 66.0 μg/m3 (56) | 21.7 μg/m3 (71) | 71.0 | |
| Jan. 15, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 33.0 μg/m3 (30) | 14.9 μg/m3 (56) | 56.0 | |
| Jan. 15, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 38.0 μg/m3 (35) | 15.4 μg/m3 (57) | 57.0 | |
| Jan. 15, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 58.0 μg/m3 (52) | 22.8 μg/m3 (73) | 73.0 | |
| Jan. 15, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 67.0 μg/m3 (56) | 25.5 μg/m3 (79) | 79.0 | |
| Jan. 15, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 74.0 μg/m3 (60) | 26.4 μg/m3 (81) | 81.0 | |
| Jan. 15, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (4) | N/A | N/A | 103.0 μg/m3 (74) | 33.6 μg/m3 (96) | 96.0 | |
| Jan. 15, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (4) | N/A | N/A | 100.0 μg/m3 (72) | 26.5 μg/m3 (81) | 81.0 | |
| Jan. 15, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (4) | N/A | N/A | 101.0 μg/m3 (73) | 25.9 μg/m3 (80) | 80.0 | |
| Jan. 15, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 82.0 μg/m3 (64) | 17.5 μg/m3 (62) | 64.0 | |
| Jan. 15, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 58.0 μg/m3 (52) | 11.9 μg/m3 (50) | 52.0 | |
| Jan. 15, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 52.0 μg/m3 (47) | 9.1 μg/m3 (38) | 47.0 | |
| Jan. 15, 2020, midnight | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 34.0 μg/m3 (31) | 8.9 μg/m3 (37) | 37.0 | |
| Jan. 14, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 26.0 μg/m3 (24) | 9.6 μg/m3 (40) | 40.0 | |
| Jan. 14, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 19.0 μg/m3 (17) | -0.9 μg/m3 (0) | 17.0 | |
| Jan. 14, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 12.0 μg/m3 (11) | 0.0 μg/m3 (0) | 11.0 | |
| Jan. 14, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 16.0 μg/m3 (15) | 2.8 μg/m3 (12) | 15.0 | |
| Jan. 14, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 37.0 μg/m3 (34) | 13.2 μg/m3 (53) | 53.0 | |
| Jan. 14, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 64.0 μg/m3 (54) | 18.4 μg/m3 (64) | 64.0 | |
| Jan. 14, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 100.0 μg/m3 (72) | 26.4 μg/m3 (81) | 81.0 | |
| Jan. 14, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 125.0 μg/m3 (85) | 29.4 μg/m3 (87) | 87.0 | |
| Jan. 14, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (4) | N/A | N/A | 124.0 μg/m3 (84) | 26.5 μg/m3 (81) | 84.0 | |
| Jan. 14, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (4) | N/A | N/A | 108.0 μg/m3 (76) | 23.1 μg/m3 (74) | 76.0 | |
| Jan. 14, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (4) | N/A | N/A | 106.0 μg/m3 (76) | 17.1 μg/m3 (61) | 76.0 | |
| Jan. 14, 2020, noon | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 45.0 μg/m3 (41) | 10.6 μg/m3 (44) | 44.0 | |
| Jan. 14, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 15.0 μg/m3 (14) | 5.5 μg/m3 (23) | 23.0 | |
| Jan. 14, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 15.0 μg/m3 (14) | 7.1 μg/m3 (30) | 30.0 | |
| Jan. 14, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 20.0 μg/m3 (18) | 6.2 μg/m3 (26) | 26.0 | |
| Jan. 14, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 50.0 μg/m3 (45) | 12.8 μg/m3 (52) | 52.0 | |
| Jan. 14, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 53.0 μg/m3 (48) | 20.6 μg/m3 (68) | 68.0 | |
| Jan. 14, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 79.0 μg/m3 (62) | 26.5 μg/m3 (81) | 81.0 | |
| Jan. 14, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 83.0 μg/m3 (64) | 21.8 μg/m3 (71) | 71.0 | |
| Jan. 14, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 66.0 μg/m3 (56) | 15.3 μg/m3 (57) | 57.0 | |
| Jan. 14, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 53.0 μg/m3 (48) | 11.7 μg/m3 (49) | 49.0 | |
| Jan. 14, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 50.0 μg/m3 (45) | 8.2 μg/m3 (34) | 45.0 | |
| Jan. 14, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 28.0 μg/m3 (25) | 5.6 μg/m3 (23) | 25.0 | |
| Jan. 14, 2020, midnight | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 13.0 μg/m3 (12) | 3.9 μg/m3 (16) | 16.0 | |
| Jan. 13, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 25.0 μg/m3 (23) | 12.0 μg/m3 (50) | 50.0 | |
| Jan. 13, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 24.0 μg/m3 (22) | 12.9 μg/m3 (52) | 52.0 | |
| Jan. 13, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 30.0 μg/m3 (27) | 13.5 μg/m3 (53) | 53.0 | |
| Jan. 13, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 26.0 μg/m3 (24) | 9.5 μg/m3 (40) | 40.0 | |
| Jan. 13, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 23.0 μg/m3 (21) | 8.5 μg/m3 (35) | 35.0 | |
| Jan. 13, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 32.0 μg/m3 (29) | 10.9 μg/m3 (45) | 45.0 | |
| Jan. 13, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 50.0 μg/m3 (45) | 15.2 μg/m3 (57) | 57.0 | |
| Jan. 13, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 113.0 μg/m3 (79) | 28.0 μg/m3 (84) | 84.0 | |
| Jan. 13, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | 143.0 μg/m3 (94) | 38.9 μg/m3 (108) | 108.0 | |
| Jan. 13, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 4.0 ppb (6) | N/A | N/A | 96.0 μg/m3 (70) | 29.8 μg/m3 (88) | 88.0 | |
| Jan. 13, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 3.0 ppb (4) | N/A | N/A | 47.0 μg/m3 (43) | 14.3 μg/m3 (55) | 55.0 | |
| Jan. 13, 2020, noon | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 23.0 μg/m3 (21) | 10.1 μg/m3 (42) | 42.0 | |
| Jan. 13, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 19.0 μg/m3 (17) | 6.2 μg/m3 (26) | 26.0 | |
| Jan. 13, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 15.0 μg/m3 (14) | 6.2 μg/m3 (26) | 26.0 | |
| Jan. 13, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 31.0 μg/m3 (28) | 18.6 μg/m3 (64) | 64.0 | |
| Jan. 13, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 37.0 μg/m3 (34) | 22.7 μg/m3 (73) | 73.0 | |
| Jan. 13, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 48.0 μg/m3 (44) | 30.3 μg/m3 (89) | 89.0 | |
| Jan. 13, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 2.0 ppb (3) | N/A | N/A | 53.0 μg/m3 (48) | 32.8 μg/m3 (94) | 94.0 | |
| Jan. 13, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 46.0 μg/m3 (42) | 27.6 μg/m3 (83) | 83.0 | |
| Jan. 13, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 40.0 μg/m3 (36) | 18.9 μg/m3 (65) | 65.0 | |
| Jan. 13, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 28.0 μg/m3 (25) | 13.3 μg/m3 (53) | 53.0 | |
| Jan. 13, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 22.0 μg/m3 (20) | 10.2 μg/m3 (42) | 42.0 | |
| Jan. 13, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 14.0 μg/m3 (13) | 7.9 μg/m3 (33) | 33.0 | |
| Jan. 13, 2020, midnight | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 11.0 μg/m3 (10) | 7.2 μg/m3 (30) | 30.0 | |
| Jan. 12, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 10.0 μg/m3 (9) | 6.8 μg/m3 (28) | 28.0 | |
| Jan. 12, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 11.0 μg/m3 (10) | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 12, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 7.0 μg/m3 (6) | 5.5 μg/m3 (23) | 23.0 | |
| Jan. 12, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 7.0 μg/m3 (6) | 5.2 μg/m3 (22) | 22.0 | |
| Jan. 12, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 7.0 μg/m3 (6) | 4.1 μg/m3 (17) | 17.0 | |
| Jan. 12, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 7.0 μg/m3 (6) | 4.0 μg/m3 (17) | 17.0 | |
| Jan. 12, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 12.0 μg/m3 (11) | 7.9 μg/m3 (33) | 33.0 | |
| Jan. 12, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 13.0 μg/m3 (12) | 7.7 μg/m3 (32) | 32.0 | |
| Jan. 12, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 22.0 μg/m3 (20) | 13.7 μg/m3 (54) | 54.0 | |
| Jan. 12, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 24.0 μg/m3 (22) | 14.9 μg/m3 (56) | 56.0 | |
| Jan. 12, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 14.0 μg/m3 (13) | 8.5 μg/m3 (35) | 35.0 | |
| Jan. 12, 2020, noon | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 17.0 μg/m3 (15) | 12.2 μg/m3 (50) | 50.0 | |
| Jan. 12, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 27.0 μg/m3 (25) | 18.3 μg/m3 (63) | 63.0 | |
| Jan. 12, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 62.0 μg/m3 (54) | 31.2 μg/m3 (91) | 91.0 | |
| Jan. 12, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 46.0 μg/m3 (42) | 26.9 μg/m3 (82) | 82.0 | |
| Jan. 12, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 47.0 μg/m3 (43) | 27.1 μg/m3 (82) | 82.0 | |
| Jan. 12, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 53.0 μg/m3 (48) | 29.4 μg/m3 (87) | 87.0 | |
| Jan. 12, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 48.0 μg/m3 (44) | 26.2 μg/m3 (80) | 80.0 | |
| Jan. 12, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 56.0 μg/m3 (50) | 26.2 μg/m3 (80) | 80.0 | |
| Jan. 12, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 58.0 μg/m3 (52) | 19.6 μg/m3 (66) | 66.0 | |
| Jan. 12, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 36.0 μg/m3 (33) | 11.7 μg/m3 (49) | 49.0 | |
| Jan. 12, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 17.0 μg/m3 (15) | 8.1 μg/m3 (34) | 34.0 | |
| Jan. 12, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 9.0 μg/m3 (8) | 5.1 μg/m3 (21) | 21.0 | |
| Jan. 12, 2020, midnight | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 4.0 μg/m3 (4) | 0.8 μg/m3 (3) | 4.0 | |
| Jan. 11, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 5.0 μg/m3 (5) | 3.0 μg/m3 (12) | 12.0 | |
| Jan. 11, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 4.0 μg/m3 (4) | 2.0 μg/m3 (8) | 8.0 | |
| Jan. 11, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 6.0 μg/m3 (5) | 3.4 μg/m3 (14) | 14.0 | |
| Jan. 11, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 5.0 μg/m3 (5) | 1.3 μg/m3 (5) | 5.0 | |
| Jan. 11, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 9.0 μg/m3 (8) | 4.6 μg/m3 (19) | 19.0 |