Los Angeles (Central City E) CA, US: 34.066429, -118.226755
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan. 27, 2020, 4 a.m. | 30.8 ppb (29) | 1.7 ppb (2) | 30.4 ppb (28) | 29.0 ppb (27) | 29.8 ppb (28) | N/A | 12.0 ppb (9) | 0.56 ppb (6) | 34.0 μg/m3 (31) | 24.0 μg/m3 (76) | 76.0 | |
| Jan. 27, 2020, 3 a.m. | 17.7 ppb (16) | 0.9 ppb (1) | 17.7 ppb (16) | 17.0 ppb (16) | 17.3 ppb (16) | N/A | 23.0 ppb (18) | 0.35 ppb (4) | 29.0 μg/m3 (26) | 19.0 μg/m3 (65) | 65.0 | |
| Jan. 27, 2020, 2 a.m. | 14.6 ppb (14) | 0.8 ppb (1) | 14.7 ppb (14) | 14.0 ppb (13) | 14.8 ppb (14) | N/A | 26.0 ppb (20) | 0.37 ppb (4) | 30.0 μg/m3 (27) | 19.0 μg/m3 (65) | 65.0 | |
| Jan. 27, 2020, 1 a.m. | 12.3 ppb (11) | 0.4 ppb (0) | 13.0 ppb (12) | 12.0 ppb (11) | 13.0 ppb (12) | N/A | 30.0 ppb (23) | 0.32 ppb (4) | 30.0 μg/m3 (27) | 27.0 μg/m3 (82) | 82.0 | |
| Jan. 27, 2020, midnight | 13.4 ppb (12) | 0.7 ppb (1) | 12.5 ppb (12) | 13.0 ppb (12) | 12.1 ppb (11) | N/A | 32.0 ppb (25) | 0.3 ppb (3) | 38.0 μg/m3 (35) | 23.0 μg/m3 (73) | 73.0 | |
| Jan. 26, 2020, 11 p.m. | 19.2 ppb (18) | 2.0 ppb (2) | N/A | 17.0 ppb (16) | N/A | N/A | 30.0 ppb (23) | 0.36 ppb (4) | 45.0 μg/m3 (41) | 31.0 μg/m3 (90) | 90.0 | |
| Jan. 26, 2020, 10 p.m. | 17.0 ppb (16) | 2.2 ppb (2) | 22.3 ppb (21) | 15.0 ppb (14) | 20.4 ppb (19) | N/A | 32.0 ppb (25) | 0.38 ppb (4) | 50.0 μg/m3 (45) | 34.0 μg/m3 (97) | 97.0 | |
| Jan. 26, 2020, 9 p.m. | 22.9 ppb (21) | 4.1 ppb (4) | 28.6 ppb (26) | 19.0 ppb (18) | 24.7 ppb (23) | N/A | 26.0 ppb (20) | 0.45 ppb (5) | 58.0 μg/m3 (52) | 47.0 μg/m3 (129) | 129.0 | |
| Jan. 26, 2020, 8 p.m. | 24.5 ppb (23) | 5.0 ppb (5) | 29.7 ppb (28) | 19.0 ppb (18) | 25.2 ppb (23) | N/A | 20.0 ppb (15) | 0.43 ppb (5) | 60.0 μg/m3 (52) | 44.0 μg/m3 (121) | 121.0 | |
| Jan. 26, 2020, 7 p.m. | 21.2 ppb (20) | 3.0 ppb (3) | 26.5 ppb (25) | 18.0 ppb (17) | 24.0 ppb (22) | N/A | 18.0 ppb (14) | 0.4 ppb (4) | 59.0 μg/m3 (52) | 46.0 μg/m3 (126) | 126.0 | |
| Jan. 26, 2020, 6 p.m. | 20.1 ppb (19) | 4.7 ppb (4) | 26.6 ppb (25) | 15.0 ppb (14) | 21.7 ppb (20) | N/A | 17.0 ppb (13) | 0.39 ppb (4) | 60.0 μg/m3 (52) | 47.0 μg/m3 (129) | 129.0 | |
| Jan. 26, 2020, 5 p.m. | 21.3 ppb (20) | 3.4 ppb (3) | 27.4 ppb (25) | 18.0 ppb (17) | 24.8 ppb (23) | N/A | 14.0 ppb (11) | 0.41 ppb (5) | 61.0 μg/m3 (53) | 46.0 μg/m3 (126) | 126.0 | |
| Jan. 26, 2020, 4 p.m. | 26.6 ppb (25) | 6.0 ppb (6) | 31.8 ppb (29) | 21.0 ppb (19) | 27.1 ppb (25) | N/A | 10.0 ppb (8) | 0.41 ppb (5) | 66.0 μg/m3 (56) | 53.0 μg/m3 (144) | 144.0 | |
| Jan. 26, 2020, 3 p.m. | 19.6 ppb (18) | 1.8 ppb (2) | 25.1 ppb (23) | 18.0 ppb (17) | 24.6 ppb (23) | N/A | 11.0 ppb (8) | 0.42 ppb (5) | 63.0 μg/m3 (54) | 53.0 μg/m3 (144) | 144.0 | |
| Jan. 26, 2020, 2 p.m. | 21.7 ppb (20) | 1.6 ppb (1) | 25.9 ppb (24) | 20.0 ppb (19) | 25.7 ppb (24) | N/A | 9.0 ppb (7) | 0.45 ppb (5) | 70.0 μg/m3 (58) | 56.0 μg/m3 (150) | 150.0 | |
| Jan. 26, 2020, 1 p.m. | 19.7 ppb (18) | 1.4 ppb (1) | 21.8 ppb (20) | 18.0 ppb (17) | 21.8 ppb (20) | N/A | 11.0 ppb (8) | 0.45 ppb (5) | 65.0 μg/m3 (55) | 54.0 μg/m3 (146) | 146.0 | |
| Jan. 26, 2020, noon | 17.9 ppb (17) | 1.6 ppb (1) | 22.0 ppb (20) | 16.0 ppb (15) | 21.9 ppb (20) | N/A | 13.0 ppb (10) | 0.43 ppb (5) | 62.0 μg/m3 (54) | 50.0 μg/m3 (136) | 136.0 | |
| Jan. 26, 2020, 11 a.m. | 19.6 ppb (18) | 1.5 ppb (1) | 21.4 ppb (20) | 18.0 ppb (17) | 21.3 ppb (20) | N/A | 12.0 ppb (9) | 0.42 ppb (5) | 67.0 μg/m3 (56) | 54.0 μg/m3 (146) | 146.0 | |
| Jan. 26, 2020, 10 a.m. | 17.6 ppb (16) | 1.4 ppb (1) | 20.1 ppb (19) | 16.0 ppb (15) | 20.1 ppb (19) | N/A | 15.0 ppb (12) | 0.36 ppb (4) | 61.0 μg/m3 (53) | 45.0 μg/m3 (124) | 124.0 | |
| Jan. 26, 2020, 9 a.m. | 20.0 ppb (19) | 1.6 ppb (1) | 18.7 ppb (17) | 18.0 ppb (17) | 18.7 ppb (17) | N/A | 15.0 ppb (12) | 0.33 ppb (4) | 56.0 μg/m3 (50) | 42.0 μg/m3 (116) | 116.0 | |
| Jan. 26, 2020, 8 a.m. | 18.1 ppb (17) | 1.5 ppb (1) | 18.4 ppb (17) | 17.0 ppb (16) | 18.4 ppb (17) | N/A | 18.0 ppb (14) | 0.31 ppb (3) | 43.0 μg/m3 (39) | 37.0 μg/m3 (104) | 104.0 | |
| Jan. 26, 2020, 7 a.m. | 16.2 ppb (15) | 1.3 ppb (1) | 18.4 ppb (17) | 15.0 ppb (14) | 18.4 ppb (17) | N/A | 20.0 ppb (15) | 0.32 ppb (4) | 40.0 μg/m3 (36) | 35.0 μg/m3 (99) | 99.0 | |
| Jan. 26, 2020, 6 a.m. | 21.4 ppb (20) | 1.9 ppb (2) | 24.1 ppb (22) | 19.0 ppb (18) | 23.9 ppb (22) | N/A | 15.0 ppb (12) | 0.39 ppb (4) | 45.0 μg/m3 (41) | 34.0 μg/m3 (97) | 97.0 | |
| Jan. 26, 2020, 5 a.m. | 44.6 ppb (41) | 8.1 ppb (8) | 44.6 ppb (41) | 36.0 ppb (33) | 38.8 ppb (36) | N/A | 3.0 ppb (2) | 0.62 ppb (7) | 48.0 μg/m3 (44) | 30.0 μg/m3 (88) | 88.0 | |
| Jan. 26, 2020, 4 a.m. | 52.3 ppb (48) | 12.4 ppb (11) | 55.3 ppb (51) | 40.0 ppb (37) | 45.5 ppb (42) | N/A | 1.0 ppb (1) | 0.79 ppb (9) | 66.0 μg/m3 (56) | 42.0 μg/m3 (116) | 116.0 | |
| Jan. 26, 2020, 3 a.m. | 40.5 ppb (38) | 3.9 ppb (4) | 43.8 ppb (41) | 37.0 ppb (34) | 41.5 ppb (38) | N/A | 4.0 ppb (3) | 0.67 ppb (7) | 64.0 μg/m3 (54) | 47.0 μg/m3 (129) | 129.0 | |
| Jan. 26, 2020, 2 a.m. | 38.9 ppb (36) | 2.2 ppb (2) | 40.9 ppb (38) | 37.0 ppb (34) | 40.5 ppb (38) | N/A | 7.0 ppb (5) | 0.65 ppb (7) | 60.0 μg/m3 (52) | 44.0 μg/m3 (121) | 121.0 | |
| Jan. 26, 2020, 1 a.m. | 37.3 ppb (35) | 1.9 ppb (2) | 39.0 ppb (36) | 35.0 ppb (32) | 38.5 ppb (36) | N/A | 12.0 ppb (9) | 0.58 ppb (6) | 58.0 μg/m3 (52) | 40.0 μg/m3 (111) | 111.0 | |
| Jan. 26, 2020, midnight | 35.5 ppb (33) | 4.6 ppb (4) | 37.2 ppb (34) | 31.0 ppb (29) | 33.5 ppb (31) | N/A | 16.0 ppb (12) | 0.53 ppb (6) | 61.0 μg/m3 (53) | 43.0 μg/m3 (119) | 119.0 | |
| Jan. 25, 2020, 11 p.m. | 46.0 ppb (43) | 11.0 ppb (10) | 46.9 ppb (43) | 35.0 ppb (32) | 36.7 ppb (34) | N/A | 16.0 ppb (12) | 0.62 ppb (7) | 67.0 μg/m3 (56) | 40.0 μg/m3 (111) | 111.0 | |
| Jan. 25, 2020, 10 p.m. | 43.3 ppb (40) | 8.8 ppb (8) | 44.4 ppb (41) | 34.0 ppb (31) | 36.0 ppb (33) | N/A | 24.0 ppb (18) | 0.71 ppb (8) | 50.0 μg/m3 (45) | 31.0 μg/m3 (90) | 90.0 | |
| Jan. 25, 2020, 9 p.m. | 45.6 ppb (42) | 12.4 ppb (11) | 46.6 ppb (43) | 33.0 ppb (31) | 34.7 ppb (32) | N/A | 24.0 ppb (18) | 0.78 ppb (9) | 46.0 μg/m3 (42) | 22.0 μg/m3 (71) | 71.0 | |
| Jan. 25, 2020, 8 p.m. | 59.4 ppb (56) | 22.1 ppb (20) | 58.8 ppb (55) | 37.0 ppb (34) | 37.7 ppb (35) | N/A | 17.0 ppb (13) | 0.8 ppb (9) | 51.0 μg/m3 (46) | 33.0 μg/m3 (95) | 95.0 | |
| Jan. 25, 2020, 7 p.m. | 70.4 ppb (67) | 32.0 ppb (30) | 68.5 ppb (65) | 38.0 ppb (35) | 38.3 ppb (35) | N/A | 12.0 ppb (9) | 0.8 ppb (9) | 48.0 μg/m3 (44) | 33.0 μg/m3 (95) | 95.0 | |
| Jan. 25, 2020, 6 p.m. | 100.0 ppb (99) | 57.8 ppb (54) | 96.2 ppb (95) | 42.0 ppb (39) | 41.6 ppb (39) | N/A | 7.0 ppb (5) | 1.04 ppb (12) | 54.0 μg/m3 (49) | 35.0 μg/m3 (99) | 99.0 | |
| Jan. 25, 2020, 5 p.m. | 138.0 ppb (107) | 95.4 ppb (94) | 130.5 ppb (106) | 43.0 ppb (40) | 41.7 ppb (39) | N/A | 3.0 ppb (2) | 1.38 ppb (15) | 58.0 μg/m3 (52) | 31.0 μg/m3 (90) | 107.0 | |
| Jan. 25, 2020, 4 p.m. | 124.1 ppb (104) | 94.5 ppb (93) | 116.7 ppb (103) | 30.0 ppb (28) | 30.2 ppb (28) | N/A | 1.0 ppb (1) | 1.34 ppb (15) | 49.0 μg/m3 (45) | 23.0 μg/m3 (73) | 104.0 | |
| Jan. 25, 2020, 3 p.m. | 108.9 ppb (102) | 85.7 ppb (84) | 102.5 ppb (100) | 23.0 ppb (21) | 23.6 ppb (22) | N/A | 0.0 ppb (0) | 1.27 ppb (14) | 30.0 μg/m3 (27) | 17.0 μg/m3 (61) | 102.0 | |
| Jan. 25, 2020, 2 p.m. | 82.1 ppb (80) | 60.3 ppb (57) | 76.8 ppb (74) | 22.0 ppb (20) | 21.9 ppb (20) | N/A | 0.0 ppb (0) | 1.04 ppb (12) | 27.0 μg/m3 (25) | 9.0 μg/m3 (38) | 80.0 | |
| Jan. 25, 2020, 1 p.m. | 86.2 ppb (84) | 64.2 ppb (61) | 73.8 ppb (71) | 22.0 ppb (20) | 19.3 ppb (18) | N/A | 0.0 ppb (0) | 1.22 ppb (14) | 27.0 μg/m3 (25) | 16.0 μg/m3 (59) | 84.0 | |
| Jan. 25, 2020, noon | 83.4 ppb (81) | 57.9 ppb (54) | 74.0 ppb (71) | 26.0 ppb (24) | 26.1 ppb (24) | N/A | 0.0 ppb (0) | 1.09 ppb (12) | 22.0 μg/m3 (20) | 20.0 μg/m3 (67) | 81.0 | |
| Jan. 25, 2020, 11 a.m. | 72.8 ppb (70) | 48.9 ppb (45) | 66.5 ppb (63) | 24.0 ppb (22) | 23.2 ppb (21) | N/A | 0.0 ppb (0) | 1.04 ppb (12) | 25.0 μg/m3 (23) | 19.0 μg/m3 (65) | 70.0 | |
| Jan. 25, 2020, 10 a.m. | 78.1 ppb (76) | 51.3 ppb (48) | 69.1 ppb (66) | 27.0 ppb (25) | 30.9 ppb (29) | N/A | 0.0 ppb (0) | 1.0 ppb (11) | 22.0 μg/m3 (20) | 17.0 μg/m3 (61) | 76.0 | |
| Jan. 25, 2020, 9 a.m. | 81.2 ppb (79) | 53.5 ppb (50) | 72.2 ppb (69) | 28.0 ppb (26) | 29.2 ppb (27) | N/A | 0.0 ppb (0) | 1.09 ppb (12) | 36.0 μg/m3 (33) | 18.0 μg/m3 (63) | 79.0 | |
| Jan. 25, 2020, 8 a.m. | 82.2 ppb (80) | 53.6 ppb (50) | 85.9 ppb (84) | 29.0 ppb (27) | 37.2 ppb (34) | N/A | 0.0 ppb (0) | 1.07 ppb (12) | 27.0 μg/m3 (25) | 18.0 μg/m3 (63) | 84.0 | |
| Jan. 25, 2020, 7 a.m. | 90.5 ppb (89) | 57.5 ppb (54) | 97.8 ppb (97) | 33.0 ppb (31) | 43.9 ppb (41) | N/A | 0.0 ppb (0) | 0.81 ppb (9) | 19.0 μg/m3 (17) | 19.0 μg/m3 (65) | 97.0 | |
| Jan. 25, 2020, 6 a.m. | 71.2 ppb (68) | 39.2 ppb (36) | 76.0 ppb (73) | 32.0 ppb (30) | 41.9 ppb (39) | N/A | 0.0 ppb (0) | 0.79 ppb (9) | 25.0 μg/m3 (23) | 21.0 μg/m3 (69) | 73.0 | |
| Jan. 25, 2020, 5 a.m. | 58.9 ppb (55) | 24.9 ppb (23) | 58.1 ppb (54) | 34.0 ppb (31) | 34.9 ppb (32) | N/A | 0.0 ppb (0) | 0.68 ppb (8) | 48.0 μg/m3 (44) | 25.0 μg/m3 (78) | 78.0 | |
| Jan. 25, 2020, 4 a.m. | 57.8 ppb (54) | 21.4 ppb (20) | 54.4 ppb (50) | 36.0 ppb (33) | 36.1 ppb (33) | N/A | 0.0 ppb (0) | 0.72 ppb (8) | 38.0 μg/m3 (35) | 20.0 μg/m3 (67) | 67.0 | |
| Jan. 25, 2020, 3 a.m. | 52.1 ppb (48) | 13.1 ppb (12) | 48.0 ppb (44) | 39.0 ppb (36) | 37.6 ppb (35) | N/A | 1.0 ppb (1) | 0.56 ppb (6) | 35.0 μg/m3 (32) | 16.0 μg/m3 (59) | 59.0 | |
| Jan. 25, 2020, 2 a.m. | 41.3 ppb (38) | 4.1 ppb (4) | 37.1 ppb (34) | 37.0 ppb (34) | 34.9 ppb (32) | N/A | 6.0 ppb (5) | 0.67 ppb (7) | 34.0 μg/m3 (31) | 17.0 μg/m3 (61) | 61.0 | |
| Jan. 25, 2020, 1 a.m. | 37.3 ppb (35) | 2.0 ppb (2) | 33.9 ppb (31) | 35.0 ppb (32) | 32.9 ppb (30) | N/A | 13.0 ppb (10) | 0.57 ppb (6) | 35.0 μg/m3 (32) | 12.0 μg/m3 (50) | 50.0 | |
| Jan. 25, 2020, midnight | 30.4 ppb (28) | 3.4 ppb (3) | 27.1 ppb (25) | 27.0 ppb (25) | 24.4 ppb (23) | N/A | 20.0 ppb (15) | 0.47 ppb (5) | 30.0 μg/m3 (27) | 17.0 μg/m3 (61) | 61.0 | |
| Jan. 24, 2020, 11 p.m. | 43.0 ppb (40) | 9.7 ppb (9) | 38.8 ppb (36) | 33.0 ppb (31) | 30.4 ppb (28) | N/A | 18.0 ppb (14) | 0.53 ppb (6) | 38.0 μg/m3 (35) | 15.0 μg/m3 (56) | 56.0 | |
| Jan. 24, 2020, 10 p.m. | 52.0 ppb (48) | 14.9 ppb (14) | 47.2 ppb (44) | 37.0 ppb (34) | 33.7 ppb (31) | N/A | 18.0 ppb (14) | 0.61 ppb (7) | 40.0 μg/m3 (36) | 17.0 μg/m3 (61) | 61.0 | |
| Jan. 24, 2020, 9 p.m. | 52.9 ppb (49) | 16.3 ppb (15) | 47.9 ppb (44) | 37.0 ppb (34) | 33.4 ppb (31) | N/A | 18.0 ppb (14) | 0.66 ppb (7) | 40.0 μg/m3 (36) | 13.0 μg/m3 (52) | 52.0 | |
| Jan. 24, 2020, 8 p.m. | 77.9 ppb (75) | 33.8 ppb (31) | 70.3 ppb (67) | 44.0 ppb (41) | 39.9 ppb (37) | N/A | 13.0 ppb (10) | 0.66 ppb (7) | 49.0 μg/m3 (45) | 19.0 μg/m3 (65) | 75.0 | |
| Jan. 24, 2020, 7 p.m. | 55.5 ppb (52) | 25.5 ppb (24) | 47.0 ppb (44) | 30.0 ppb (28) | 26.1 ppb (24) | N/A | 15.0 ppb (12) | 0.48 ppb (5) | 21.0 μg/m3 (19) | 7.0 μg/m3 (29) | 52.0 | |
| Jan. 24, 2020, 6 p.m. | 50.5 ppb (47) | 24.1 ppb (22) | 41.0 ppb (38) | 26.0 ppb (24) | 22.5 ppb (21) | N/A | 14.0 ppb (11) | 0.42 ppb (5) | 26.0 μg/m3 (24) | 8.0 μg/m3 (33) | 47.0 | |
| Jan. 24, 2020, 5 p.m. | 92.6 ppb (91) | 57.2 ppb (53) | 78.4 ppb (76) | 35.0 ppb (32) | 31.2 ppb (29) | N/A | 6.0 ppb (5) | 0.81 ppb (9) | 27.0 μg/m3 (25) | 8.0 μg/m3 (33) | 91.0 | |
| Jan. 24, 2020, 4 p.m. | 171.3 ppb (114) | 132.5 ppb (106) | 149.3 ppb (109) | 39.0 ppb (36) | 33.3 ppb (31) | N/A | 1.0 ppb (1) | 1.34 ppb (15) | 52.0 μg/m3 (47) | 15.0 μg/m3 (56) | 114.0 | |
| Jan. 24, 2020, 3 p.m. | 149.5 ppb (109) | 114.6 ppb (103) | 135.5 ppb (107) | 35.0 ppb (32) | 30.2 ppb (28) | N/A | 0.0 ppb (0) | 1.18 ppb (13) | 38.0 μg/m3 (35) | 12.0 μg/m3 (50) | 109.0 | |
| Jan. 24, 2020, 2 p.m. | 125.3 ppb (105) | 91.4 ppb (90) | 110.6 ppb (102) | 34.0 ppb (31) | 27.9 ppb (26) | N/A | 0.0 ppb (0) | 1.01 ppb (11) | 32.0 μg/m3 (29) | 12.0 μg/m3 (50) | 105.0 | |
| Jan. 24, 2020, 1 p.m. | 84.0 ppb (82) | 52.6 ppb (49) | 73.3 ppb (71) | 31.0 ppb (29) | 23.5 ppb (22) | N/A | 0.0 ppb (0) | 0.69 ppb (8) | 25.0 μg/m3 (23) | 7.0 μg/m3 (29) | 82.0 | |
| Jan. 24, 2020, noon | 67.3 ppb (64) | 36.0 ppb (33) | 57.3 ppb (54) | 31.0 ppb (29) | 27.0 ppb (25) | N/A | 0.0 ppb (0) | 0.63 ppb (7) | 20.0 μg/m3 (18) | 8.0 μg/m3 (33) | 64.0 | |
| Jan. 24, 2020, 11 a.m. | 58.1 ppb (54) | 27.6 ppb (26) | 40.7 ppb (38) | 30.0 ppb (28) | 25.9 ppb (24) | N/A | 0.0 ppb (0) | 0.62 ppb (7) | 20.0 μg/m3 (18) | 11.0 μg/m3 (46) | 54.0 | |
| Jan. 24, 2020, 10 a.m. | 75.8 ppb (73) | 46.9 ppb (43) | 74.5 ppb (72) | 29.0 ppb (27) | 26.5 ppb (25) | N/A | 0.0 ppb (0) | 0.82 ppb (9) | 26.0 μg/m3 (24) | 11.0 μg/m3 (46) | 73.0 | |
| Jan. 24, 2020, 9 a.m. | 88.2 ppb (86) | 58.9 ppb (55) | 70.8 ppb (68) | 29.0 ppb (27) | 23.6 ppb (22) | N/A | 0.0 ppb (0) | 1.0 ppb (11) | 33.0 μg/m3 (30) | 17.0 μg/m3 (61) | 86.0 | |
| Jan. 24, 2020, 8 a.m. | 83.3 ppb (81) | 53.2 ppb (49) | 81.2 ppb (79) | 30.0 ppb (28) | 29.3 ppb (27) | N/A | 0.0 ppb (0) | 1.11 ppb (12) | 33.0 μg/m3 (30) | 16.0 μg/m3 (59) | 81.0 | |
| Jan. 24, 2020, 7 a.m. | 91.0 ppb (89) | 59.8 ppb (56) | 86.4 ppb (84) | 31.0 ppb (29) | 30.5 ppb (28) | N/A | 0.0 ppb (0) | 1.22 ppb (14) | 36.0 μg/m3 (33) | 16.0 μg/m3 (59) | 89.0 | |
| Jan. 24, 2020, 6 a.m. | 97.6 ppb (96) | 64.5 ppb (61) | 90.1 ppb (88) | 33.0 ppb (31) | 32.5 ppb (30) | N/A | 0.0 ppb (0) | 1.28 ppb (14) | 37.0 μg/m3 (34) | 14.0 μg/m3 (54) | 96.0 | |
| Jan. 24, 2020, 5 a.m. | 95.7 ppb (94) | 62.8 ppb (59) | 89.6 ppb (88) | 33.0 ppb (31) | 31.9 ppb (30) | N/A | 0.0 ppb (0) | 1.33 ppb (15) | 35.0 μg/m3 (32) | 17.0 μg/m3 (61) | 94.0 | |
| Jan. 24, 2020, 4 a.m. | 77.8 ppb (75) | 44.3 ppb (41) | 72.0 ppb (69) | 34.0 ppb (31) | 32.4 ppb (30) | N/A | 0.0 ppb (0) | 1.14 ppb (13) | 39.0 μg/m3 (35) | 14.0 μg/m3 (54) | 75.0 | |
| Jan. 24, 2020, 3 a.m. | 46.4 ppb (43) | 12.8 ppb (12) | 37.4 ppb (35) | 34.0 ppb (31) | 31.3 ppb (29) | N/A | 1.0 ppb (1) | 0.75 ppb (8) | 27.0 μg/m3 (25) | 9.0 μg/m3 (38) | 43.0 | |
| Jan. 24, 2020, 2 a.m. | 44.0 ppb (41) | 8.8 ppb (8) | 36.9 ppb (34) | 35.0 ppb (32) | 32.2 ppb (30) | N/A | 4.0 ppb (3) | 0.56 ppb (6) | 25.0 μg/m3 (23) | 8.0 μg/m3 (33) | 41.0 | |
| Jan. 24, 2020, 1 a.m. | 24.2 ppb (22) | 3.1 ppb (3) | 18.7 ppb (17) | 21.0 ppb (19) | 18.1 ppb (17) | N/A | 19.0 ppb (15) | 0.39 ppb (4) | 21.0 μg/m3 (19) | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 24, 2020, midnight | 17.5 ppb (16) | 3.9 ppb (4) | 12.1 ppb (11) | 14.0 ppb (13) | 10.8 ppb (10) | N/A | 29.0 ppb (22) | 0.29 ppb (3) | 21.0 μg/m3 (19) | 4.0 μg/m3 (17) | 22.0 | |
| Jan. 23, 2020, 11 p.m. | 23.3 ppb (22) | 8.5 ppb (8) | 15.0 ppb (14) | 15.0 ppb (14) | 10.6 ppb (10) | N/A | 30.0 ppb (23) | 0.28 ppb (3) | 17.0 μg/m3 (15) | 5.0 μg/m3 (21) | 23.0 | |
| Jan. 23, 2020, 10 p.m. | 32.5 ppb (30) | 18.5 ppb (17) | 13.8 ppb (13) | 14.0 ppb (13) | 9.5 ppb (9) | N/A | 31.0 ppb (24) | 0.29 ppb (3) | 22.0 μg/m3 (20) | 7.0 μg/m3 (29) | 30.0 | |
| Jan. 23, 2020, 9 p.m. | 37.7 ppb (35) | 22.3 ppb (21) | 15.5 ppb (14) | 15.0 ppb (14) | 10.2 ppb (9) | N/A | 30.0 ppb (23) | 0.32 ppb (4) | 20.0 μg/m3 (18) | 8.0 μg/m3 (33) | 35.0 | |
| Jan. 23, 2020, 8 p.m. | 29.9 ppb (28) | 8.7 ppb (8) | 27.5 ppb (25) | 21.0 ppb (19) | 19.2 ppb (18) | N/A | 25.0 ppb (19) | 0.45 ppb (5) | 22.0 μg/m3 (20) | 10.0 μg/m3 (42) | 42.0 | |
| Jan. 23, 2020, 7 p.m. | 55.4 ppb (51) | 24.3 ppb (23) | 51.6 ppb (48) | 31.0 ppb (29) | 27.7 ppb (26) | N/A | 16.0 ppb (12) | 0.58 ppb (6) | 40.0 μg/m3 (36) | 15.0 μg/m3 (56) | 56.0 | |
| Jan. 23, 2020, 6 p.m. | 66.4 ppb (63) | 33.3 ppb (31) | 59.9 ppb (56) | 33.0 ppb (31) | 29.0 ppb (27) | N/A | 10.0 ppb (8) | 0.57 ppb (6) | 35.0 μg/m3 (32) | 16.0 μg/m3 (59) | 63.0 | |
| Jan. 23, 2020, 5 p.m. | 78.8 ppb (76) | 44.4 ppb (41) | 69.6 ppb (67) | 34.0 ppb (31) | 26.8 ppb (25) | N/A | 6.0 ppb (5) | 0.74 ppb (8) | 39.0 μg/m3 (35) | 15.0 μg/m3 (56) | 76.0 | |
| Jan. 23, 2020, 4 p.m. | 125.0 ppb (105) | 92.0 ppb (90) | 114.8 ppb (103) | 33.0 ppb (31) | 30.6 ppb (28) | N/A | 2.0 ppb (2) | 1.06 ppb (12) | 43.0 μg/m3 (39) | 18.0 μg/m3 (63) | 105.0 | |
| Jan. 23, 2020, 3 p.m. | 146.0 ppb (109) | 115.6 ppb (103) | 134.9 ppb (107) | 30.0 ppb (28) | 27.4 ppb (25) | N/A | 1.0 ppb (1) | 1.24 ppb (14) | 46.0 μg/m3 (42) | 18.0 μg/m3 (63) | 109.0 | |
| Jan. 23, 2020, 2 p.m. | 109.3 ppb (102) | 81.0 ppb (79) | 100.1 ppb (99) | 28.0 ppb (26) | 24.3 ppb (23) | N/A | 0.0 ppb (0) | 1.04 ppb (12) | 35.0 μg/m3 (32) | 12.0 μg/m3 (50) | 102.0 | |
| Jan. 23, 2020, 1 p.m. | 77.8 ppb (75) | 49.2 ppb (46) | 72.9 ppb (70) | 29.0 ppb (27) | 22.6 ppb (21) | N/A | 0.0 ppb (0) | 0.77 ppb (9) | 34.0 μg/m3 (31) | 14.0 μg/m3 (54) | 75.0 | |
| Jan. 23, 2020, noon | 51.8 ppb (48) | 23.4 ppb (22) | 44.0 ppb (41) | 28.0 ppb (26) | 26.7 ppb (25) | N/A | 0.0 ppb (0) | 0.6 ppb (7) | 27.0 μg/m3 (25) | 11.0 μg/m3 (46) | 48.0 | |
| Jan. 23, 2020, 11 a.m. | 39.9 ppb (37) | 12.1 ppb (11) | 36.3 ppb (34) | 28.0 ppb (26) | 25.3 ppb (23) | N/A | 0.0 ppb (0) | 0.54 ppb (6) | 29.0 μg/m3 (26) | 13.0 μg/m3 (52) | 52.0 | |
| Jan. 23, 2020, 10 a.m. | 42.6 ppb (39) | 16.1 ppb (15) | 41.6 ppb (39) | 27.0 ppb (25) | 25.9 ppb (24) | N/A | 0.0 ppb (0) | 0.59 ppb (7) | 32.0 μg/m3 (29) | 16.0 μg/m3 (59) | 59.0 | |
| Jan. 23, 2020, 9 a.m. | 54.7 ppb (51) | 27.0 ppb (25) | 50.9 ppb (47) | 28.0 ppb (26) | 26.4 ppb (24) | N/A | 0.0 ppb (0) | 0.78 ppb (9) | 36.0 μg/m3 (33) | 18.0 μg/m3 (63) | 63.0 | |
| Jan. 23, 2020, 8 a.m. | 64.1 ppb (61) | 38.9 ppb (36) | 65.4 ppb (62) | 25.0 ppb (23) | 26.1 ppb (24) | N/A | 0.0 ppb (0) | 0.95 ppb (11) | 39.0 μg/m3 (35) | 21.0 μg/m3 (69) | 69.0 | |
| Jan. 23, 2020, 7 a.m. | 59.7 ppb (56) | 31.9 ppb (30) | 63.7 ppb (60) | 28.0 ppb (26) | 28.1 ppb (26) | N/A | 0.0 ppb (0) | 0.95 ppb (11) | 36.0 μg/m3 (33) | 16.0 μg/m3 (59) | 60.0 | |
| Jan. 23, 2020, 6 a.m. | 65.1 ppb (62) | 34.5 ppb (32) | 61.2 ppb (58) | 31.0 ppb (29) | 30.9 ppb (29) | N/A | 0.0 ppb (0) | 0.97 ppb (11) | 35.0 μg/m3 (32) | 19.0 μg/m3 (65) | 65.0 | |
| Jan. 23, 2020, 5 a.m. | 58.4 ppb (55) | 23.7 ppb (22) | 55.1 ppb (51) | 35.0 ppb (32) | 33.7 ppb (31) | N/A | 0.0 ppb (0) | 0.84 ppb (9) | 33.0 μg/m3 (30) | 13.0 μg/m3 (52) | 55.0 | |
| Jan. 23, 2020, 4 a.m. | 36.7 ppb (34) | 5.6 ppb (5) | 34.4 ppb (32) | 31.0 ppb (29) | 30.3 ppb (28) | N/A | 6.0 ppb (5) | 0.64 ppb (7) | 31.0 μg/m3 (28) | 16.0 μg/m3 (59) | 59.0 | |
| Jan. 23, 2020, 3 a.m. | 32.0 ppb (30) | 2.7 ppb (3) | 29.6 ppb (27) | 29.0 ppb (27) | 27.9 ppb (26) | N/A | 9.0 ppb (7) | 0.57 ppb (6) | 29.0 μg/m3 (26) | 15.0 μg/m3 (56) | 56.0 | |
| Jan. 23, 2020, 2 a.m. | 24.1 ppb (22) | 1.1 ppb (1) | 22.0 ppb (20) | 23.0 ppb (21) | 21.6 ppb (20) | N/A | 18.0 ppb (14) | 0.44 ppb (5) | 32.0 μg/m3 (29) | 11.0 μg/m3 (46) | 46.0 | |
| Jan. 23, 2020, 1 a.m. | 28.3 ppb (26) | 1.2 ppb (1) | 25.9 ppb (24) | 27.0 ppb (25) | 25.4 ppb (24) | N/A | 17.0 ppb (13) | 0.41 ppb (5) | 30.0 μg/m3 (27) | 12.0 μg/m3 (50) | 50.0 | |
| Jan. 23, 2020, midnight | 27.5 ppb (25) | 2.6 ppb (2) | 25.5 ppb (24) | 25.0 ppb (23) | 23.2 ppb (21) | N/A | 21.0 ppb (16) | 0.37 ppb (4) | 34.0 μg/m3 (31) | 12.0 μg/m3 (50) | 50.0 | |
| Jan. 22, 2020, 11 p.m. | 28.4 ppb (26) | 4.9 ppb (5) | 26.9 ppb (25) | 23.0 ppb (21) | 22.1 ppb (20) | N/A | 24.0 ppb (18) | 0.4 ppb (4) | 38.0 μg/m3 (35) | 17.0 μg/m3 (61) | 61.0 | |
| Jan. 22, 2020, 10 p.m. | 29.6 ppb (27) | 7.1 ppb (7) | 28.8 ppb (27) | 23.0 ppb (21) | 21.2 ppb (20) | N/A | 24.0 ppb (18) | 0.35 ppb (4) | 34.0 μg/m3 (31) | 15.0 μg/m3 (56) | 56.0 | |
| Jan. 22, 2020, 9 p.m. | 18.9 ppb (18) | 4.6 ppb (4) | 18.1 ppb (17) | 14.0 ppb (13) | 13.4 ppb (12) | N/A | 27.0 ppb (21) | 0.26 ppb (3) | 22.0 μg/m3 (20) | 8.0 μg/m3 (33) | 33.0 | |
| Jan. 22, 2020, 8 p.m. | 15.6 ppb (14) | 4.2 ppb (4) | 14.5 ppb (13) | 11.0 ppb (10) | 10.7 ppb (10) | N/A | 28.0 ppb (22) | 0.24 ppb (3) | 30.0 μg/m3 (27) | 11.0 μg/m3 (46) | 46.0 | |
| Jan. 22, 2020, 7 p.m. | N/A | N/A | 14.9 ppb (14) | N/A | 9.7 ppb (9) | N/A | N/A | 0.23 ppb (3) | 26.0 μg/m3 (24) | 11.0 μg/m3 (46) | 46.0 | |
| Jan. 22, 2020, 6 p.m. | 18.0 ppb (17) | 5.7 ppb (5) | 15.6 ppb (14) | 12.0 ppb (11) | 11.4 ppb (11) | N/A | 24.0 ppb (18) | 0.25 ppb (3) | 36.0 μg/m3 (33) | 11.0 μg/m3 (46) | 46.0 | |
| Jan. 22, 2020, 5 p.m. | 43.9 ppb (41) | 23.3 ppb (22) | 40.4 ppb (37) | 21.0 ppb (19) | 18.5 ppb (17) | N/A | 12.0 ppb (9) | N/A | 34.0 μg/m3 (31) | 15.0 μg/m3 (56) | 56.0 | |
| Jan. 22, 2020, 4 p.m. | 87.2 ppb (85) | 61.4 ppb (58) | 80.7 ppb (78) | 26.0 ppb (24) | 24.3 ppb (23) | N/A | 2.0 ppb (2) | 0.84 ppb (9) | 42.0 μg/m3 (38) | 18.0 μg/m3 (63) | 85.0 | |
| Jan. 22, 2020, 3 p.m. | 78.0 ppb (76) | 54.2 ppb (50) | 71.8 ppb (69) | 24.0 ppb (22) | 22.4 ppb (21) | N/A | 0.0 ppb (0) | 0.75 ppb (8) | 31.0 μg/m3 (28) | 14.0 μg/m3 (54) | 76.0 | |
| Jan. 22, 2020, 2 p.m. | 89.5 ppb (88) | 66.2 ppb (63) | 80.2 ppb (78) | 23.0 ppb (21) | 19.1 ppb (18) | N/A | 0.0 ppb (0) | 0.86 ppb (10) | 30.0 μg/m3 (27) | 12.0 μg/m3 (50) | 88.0 | |
| Jan. 22, 2020, 1 p.m. | 66.9 ppb (64) | 44.7 ppb (41) | 56.9 ppb (53) | 22.0 ppb (20) | 16.8 ppb (16) | N/A | 0.0 ppb (0) | 0.56 ppb (6) | 29.0 μg/m3 (26) | 12.0 μg/m3 (50) | 64.0 | |
| Jan. 22, 2020, noon | 49.0 ppb (45) | 26.5 ppb (25) | 44.3 ppb (41) | 23.0 ppb (21) | 20.1 ppb (19) | N/A | 0.0 ppb (0) | 0.54 ppb (6) | 26.0 μg/m3 (24) | 12.0 μg/m3 (50) | 50.0 | |
| Jan. 22, 2020, 11 a.m. | 32.9 ppb (30) | 9.5 ppb (9) | 29.8 ppb (28) | 23.0 ppb (21) | 19.7 ppb (18) | N/A | 1.0 ppb (1) | 0.45 ppb (5) | 22.0 μg/m3 (20) | 11.0 μg/m3 (46) | 46.0 | |
| Jan. 22, 2020, 10 a.m. | 28.5 ppb (26) | 5.3 ppb (5) | 25.1 ppb (23) | 23.0 ppb (21) | 21.4 ppb (20) | N/A | 1.0 ppb (1) | 0.43 ppb (5) | 19.0 μg/m3 (17) | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 22, 2020, 9 a.m. | 28.1 ppb (26) | 3.7 ppb (3) | 24.4 ppb (23) | 24.0 ppb (22) | 21.4 ppb (20) | N/A | 3.0 ppb (2) | 0.44 ppb (5) | 17.0 μg/m3 (15) | 6.0 μg/m3 (25) | 26.0 | |
| Jan. 22, 2020, 8 a.m. | 23.7 ppb (22) | 1.3 ppb (1) | 18.8 ppb (17) | 22.0 ppb (20) | 18.5 ppb (17) | N/A | 9.0 ppb (7) | 0.42 ppb (5) | 18.0 μg/m3 (16) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 22, 2020, 7 a.m. | 20.3 ppb (19) | 1.6 ppb (1) | 17.6 ppb (16) | 19.0 ppb (18) | 16.9 ppb (16) | N/A | 14.0 ppb (11) | 0.33 ppb (4) | 14.0 μg/m3 (13) | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 22, 2020, 6 a.m. | 23.7 ppb (22) | 2.7 ppb (3) | 21.7 ppb (20) | 21.0 ppb (19) | 20.0 ppb (19) | N/A | 12.0 ppb (9) | 0.43 ppb (5) | 16.0 μg/m3 (15) | 8.0 μg/m3 (33) | 33.0 | |
| Jan. 22, 2020, 5 a.m. | 27.1 ppb (25) | 2.7 ppb (3) | 24.6 ppb (23) | 24.0 ppb (22) | 22.8 ppb (21) | N/A | 8.0 ppb (6) | 0.54 ppb (6) | 28.0 μg/m3 (25) | 12.0 μg/m3 (50) | 50.0 | |
| Jan. 22, 2020, 4 a.m. | 18.9 ppb (18) | 1.2 ppb (1) | 14.8 ppb (14) | 18.0 ppb (17) | 14.4 ppb (13) | N/A | 17.0 ppb (13) | 0.43 ppb (5) | 21.0 μg/m3 (19) | 5.0 μg/m3 (21) | 21.0 | |
| Jan. 22, 2020, 3 a.m. | 8.3 ppb (8) | 0.3 ppb (0) | 5.7 ppb (5) | 8.0 ppb (7) | 5.7 ppb (5) | N/A | 30.0 ppb (23) | 0.2 ppb (2) | 10.0 μg/m3 (9) | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 22, 2020, 2 a.m. | 7.7 ppb (7) | 0.3 ppb (0) | 5.3 ppb (5) | 7.0 ppb (6) | 5.3 ppb (5) | N/A | 32.0 ppb (25) | 0.21 ppb (2) | 10.0 μg/m3 (9) | 5.0 μg/m3 (21) | 25.0 | |
| Jan. 22, 2020, 1 a.m. | 9.1 ppb (8) | 0.4 ppb (0) | 6.6 ppb (6) | 9.0 ppb (8) | 6.4 ppb (6) | N/A | 32.0 ppb (25) | 0.2 ppb (2) | 12.0 μg/m3 (11) | 4.0 μg/m3 (17) | 25.0 | |
| Jan. 22, 2020, midnight | 9.4 ppb (9) | 0.5 ppb (0) | 6.8 ppb (6) | 9.0 ppb (8) | 6.4 ppb (6) | N/A | 33.0 ppb (25) | 0.19 ppb (2) | 11.0 μg/m3 (10) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 21, 2020, 11 p.m. | 12.2 ppb (11) | 2.0 ppb (2) | 9.1 ppb (8) | 10.0 ppb (9) | 7.4 ppb (7) | N/A | 34.0 ppb (26) | 0.2 ppb (2) | 12.0 μg/m3 (11) | 5.0 μg/m3 (21) | 26.0 | |
| Jan. 21, 2020, 10 p.m. | 11.2 ppb (10) | 2.6 ppb (2) | 8.9 ppb (8) | 9.0 ppb (8) | 6.7 ppb (6) | N/A | 35.0 ppb (27) | 0.18 ppb (2) | 13.0 μg/m3 (12) | 5.0 μg/m3 (21) | 27.0 | |
| Jan. 21, 2020, 9 p.m. | N/A | N/A | 10.2 ppb (9) | N/A | 7.6 ppb (7) | N/A | N/A | 0.19 ppb (2) | 16.0 μg/m3 (15) | 8.0 μg/m3 (33) | 33.0 | |
| Jan. 21, 2020, 8 p.m. | N/A | N/A | 14.8 ppb (14) | N/A | 9.7 ppb (9) | N/A | N/A | 0.22 ppb (2) | 18.0 μg/m3 (16) | 7.0 μg/m3 (29) | 29.0 | |
| Jan. 21, 2020, 7 p.m. | N/A | N/A | 16.9 ppb (16) | N/A | 13.1 ppb (12) | N/A | N/A | 0.28 ppb (3) | 22.0 μg/m3 (20) | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 21, 2020, 6 p.m. | 33.7 ppb (31) | 8.9 ppb (8) | 30.5 ppb (28) | 25.0 ppb (23) | 22.3 ppb (21) | N/A | 14.0 ppb (11) | 0.44 ppb (5) | 28.0 μg/m3 (25) | 10.0 μg/m3 (42) | 42.0 | |
| Jan. 21, 2020, 5 p.m. | 37.3 ppb (35) | 13.0 ppb (12) | 33.5 ppb (31) | 24.0 ppb (22) | 22.4 ppb (21) | N/A | 9.0 ppb (7) | 0.47 ppb (5) | 28.0 μg/m3 (25) | 16.0 μg/m3 (59) | 59.0 | |
| Jan. 21, 2020, 4 p.m. | 45.2 ppb (42) | 17.4 ppb (16) | 40.8 ppb (38) | 28.0 ppb (26) | 25.8 ppb (24) | N/A | 3.0 ppb (2) | 0.6 ppb (7) | 22.0 μg/m3 (20) | 15.0 μg/m3 (56) | 56.0 | |
| Jan. 21, 2020, 3 p.m. | 61.0 ppb (57) | 31.6 ppb (29) | 54.2 ppb (50) | 29.0 ppb (27) | 27.6 ppb (26) | N/A | 1.0 ppb (1) | 0.74 ppb (8) | 22.0 μg/m3 (20) | 13.0 μg/m3 (52) | 57.0 | |
| Jan. 21, 2020, 2 p.m. | 50.8 ppb (47) | 21.9 ppb (20) | 42.1 ppb (39) | 29.0 ppb (27) | 24.8 ppb (23) | N/A | 1.0 ppb (1) | 0.54 ppb (6) | 19.0 μg/m3 (17) | 15.0 μg/m3 (56) | 56.0 | |
| Jan. 21, 2020, 1 p.m. | 29.0 ppb (27) | 5.1 ppb (5) | 23.8 ppb (22) | 24.0 ppb (22) | 19.7 ppb (18) | N/A | 5.0 ppb (4) | 0.45 ppb (5) | 18.0 μg/m3 (16) | 13.0 μg/m3 (52) | 52.0 | |
| Jan. 21, 2020, noon | 26.2 ppb (24) | 5.3 ppb (5) | 23.0 ppb (21) | 21.0 ppb (19) | 18.4 ppb (17) | N/A | 4.0 ppb (3) | 0.51 ppb (6) | 25.0 μg/m3 (23) | 13.0 μg/m3 (52) | 52.0 | |
| Jan. 21, 2020, 11 a.m. | 26.2 ppb (24) | 3.0 ppb (3) | 21.1 ppb (20) | 23.0 ppb (21) | 19.5 ppb (18) | N/A | 4.0 ppb (3) | 0.4 ppb (4) | 25.0 μg/m3 (23) | 13.0 μg/m3 (52) | 52.0 | |
| Jan. 21, 2020, 10 a.m. | 26.1 ppb (24) | 2.2 ppb (2) | 23.5 ppb (22) | 24.0 ppb (22) | 22.5 ppb (21) | N/A | 4.0 ppb (3) | 0.38 ppb (4) | 21.0 μg/m3 (19) | 14.0 μg/m3 (54) | 54.0 | |
| Jan. 21, 2020, 9 a.m. | 41.2 ppb (38) | 13.8 ppb (13) | 32.0 ppb (30) | 27.0 ppb (25) | 21.3 ppb (20) | N/A | 6.0 ppb (5) | 0.34 ppb (4) | 24.0 μg/m3 (22) | 11.0 μg/m3 (46) | 46.0 | |
| Jan. 21, 2020, 8 a.m. | 16.3 ppb (15) | 0.9 ppb (1) | 12.7 ppb (12) | 15.0 ppb (14) | 12.7 ppb (12) | N/A | 17.0 ppb (13) | 0.31 ppb (3) | 16.0 μg/m3 (15) | 13.0 μg/m3 (52) | 52.0 | |
| Jan. 21, 2020, 7 a.m. | 12.4 ppb (11) | 0.8 ppb (1) | 10.3 ppb (10) | 12.0 ppb (11) | 10.3 ppb (10) | N/A | 22.0 ppb (17) | 0.27 ppb (3) | 18.0 μg/m3 (16) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 21, 2020, 6 a.m. | 13.8 ppb (13) | 0.8 ppb (1) | 12.8 ppb (12) | 13.0 ppb (12) | 12.8 ppb (12) | N/A | 22.0 ppb (17) | 0.29 ppb (3) | 18.0 μg/m3 (16) | 6.0 μg/m3 (25) | 25.0 | |
| Jan. 21, 2020, 5 a.m. | 22.5 ppb (21) | 1.0 ppb (1) | 19.8 ppb (18) | 21.0 ppb (19) | 19.7 ppb (18) | N/A | 15.0 ppb (12) | 0.37 ppb (4) | 21.0 μg/m3 (19) | 8.0 μg/m3 (33) | 33.0 | |
| Jan. 21, 2020, 4 a.m. | 20.0 ppb (19) | 0.9 ppb (1) | 17.9 ppb (17) | 19.0 ppb (18) | 17.8 ppb (16) | N/A | 19.0 ppb (15) | 0.3 ppb (3) | 22.0 μg/m3 (20) | 8.0 μg/m3 (33) | 33.0 | |
| Jan. 21, 2020, 3 a.m. | 16.2 ppb (15) | 0.7 ppb (1) | 14.4 ppb (13) | 15.0 ppb (14) | 14.4 ppb (13) | N/A | 23.0 ppb (18) | 0.29 ppb (3) | 16.0 μg/m3 (15) | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 21, 2020, 2 a.m. | 26.9 ppb (25) | 1.9 ppb (2) | 24.7 ppb (23) | 25.0 ppb (23) | 23.7 ppb (22) | N/A | 15.0 ppb (12) | 0.41 ppb (5) | 28.0 μg/m3 (25) | 16.0 μg/m3 (59) | 59.0 | |
| Jan. 21, 2020, 1 a.m. | 28.3 ppb (26) | 2.0 ppb (2) | 26.0 ppb (24) | 26.0 ppb (24) | 24.9 ppb (23) | N/A | 16.0 ppb (12) | 0.39 ppb (4) | 29.0 μg/m3 (26) | 9.0 μg/m3 (38) | 38.0 | |
| Jan. 21, 2020, midnight | 36.7 ppb (34) | 3.9 ppb (4) | 35.0 ppb (32) | 33.0 ppb (31) | 31.9 ppb (30) | N/A | 12.0 ppb (9) | 0.48 ppb (5) | 41.0 μg/m3 (37) | 15.0 μg/m3 (56) | 56.0 | |
| Jan. 20, 2020, 11 p.m. | 47.8 ppb (44) | 9.3 ppb (9) | 46.1 ppb (43) | 39.0 ppb (36) | 37.4 ppb (35) | N/A | 11.0 ppb (8) | 0.55 ppb (6) | 46.0 μg/m3 (42) | 23.0 μg/m3 (73) | 73.0 | |
| Jan. 20, 2020, 10 p.m. | 43.9 ppb (41) | 8.1 ppb (8) | 42.0 ppb (39) | 36.0 ppb (33) | 35.0 ppb (32) | N/A | 14.0 ppb (11) | 0.54 ppb (6) | 44.0 μg/m3 (40) | 26.0 μg/m3 (80) | 80.0 | |
| Jan. 20, 2020, 9 p.m. | 42.7 ppb (40) | 10.6 ppb (10) | 41.1 ppb (38) | 32.0 ppb (30) | 31.1 ppb (29) | N/A | 16.0 ppb (12) | 0.57 ppb (6) | 37.0 μg/m3 (34) | 17.0 μg/m3 (61) | 61.0 | |
| Jan. 20, 2020, 8 p.m. | 51.5 ppb (48) | 17.9 ppb (17) | 49.1 ppb (45) | 34.0 ppb (31) | 32.0 ppb (30) | N/A | 12.0 ppb (9) | 0.61 ppb (7) | 39.0 μg/m3 (35) | 22.0 μg/m3 (71) | 71.0 | |
| Jan. 20, 2020, 7 p.m. | 58.9 ppb (55) | 24.1 ppb (22) | 55.4 ppb (51) | 35.0 ppb (32) | 33.2 ppb (31) | N/A | 7.0 ppb (5) | 0.7 ppb (8) | 38.0 μg/m3 (35) | 23.0 μg/m3 (73) | 73.0 | |
| Jan. 20, 2020, 6 p.m. | 55.5 ppb (52) | 22.1 ppb (20) | 51.8 ppb (48) | 33.0 ppb (31) | 32.4 ppb (30) | N/A | 7.0 ppb (5) | 0.59 ppb (7) | 40.0 μg/m3 (36) | 22.0 μg/m3 (71) | 71.0 | |
| Jan. 20, 2020, 5 p.m. | 61.6 ppb (58) | 28.5 ppb (26) | 57.3 ppb (54) | 33.0 ppb (31) | 31.2 ppb (29) | N/A | 4.0 ppb (3) | 0.67 ppb (7) | 46.0 μg/m3 (42) | 24.0 μg/m3 (76) | 76.0 | |
| Jan. 20, 2020, 4 p.m. | 69.2 ppb (66) | 35.1 ppb (32) | 63.5 ppb (60) | 34.0 ppb (31) | 32.9 ppb (30) | N/A | 2.0 ppb (2) | 0.75 ppb (8) | 40.0 μg/m3 (36) | 22.0 μg/m3 (71) | 71.0 | |
| Jan. 20, 2020, 3 p.m. | 80.5 ppb (78) | 45.2 ppb (42) | 72.8 ppb (70) | 35.0 ppb (32) | 33.4 ppb (31) | N/A | 1.0 ppb (1) | 0.95 ppb (11) | 36.0 μg/m3 (33) | 26.0 μg/m3 (80) | 80.0 | |
| Jan. 20, 2020, 2 p.m. | 85.0 ppb (83) | 50.4 ppb (47) | 76.1 ppb (74) | 35.0 ppb (32) | 31.5 ppb (29) | N/A | 0.0 ppb (0) | 1.06 ppb (12) | 34.0 μg/m3 (31) | 14.0 μg/m3 (54) | 83.0 | |
| Jan. 20, 2020, 1 p.m. | 73.8 ppb (71) | 40.9 ppb (38) | 63.8 ppb (60) | 33.0 ppb (31) | 27.4 ppb (25) | N/A | 0.0 ppb (0) | 0.91 ppb (10) | 32.0 μg/m3 (29) | 17.0 μg/m3 (61) | 71.0 | |
| Jan. 20, 2020, noon | 95.8 ppb (94) | 62.3 ppb (59) | 81.9 ppb (80) | 34.0 ppb (31) | 31.2 ppb (29) | N/A | 0.0 ppb (0) | 1.08 ppb (12) | 32.0 μg/m3 (29) | 18.0 μg/m3 (63) | 94.0 | |
| Jan. 20, 2020, 11 a.m. | 67.1 ppb (64) | 34.0 ppb (31) | 65.1 ppb (62) | 33.0 ppb (31) | 29.0 ppb (27) | N/A | 0.0 ppb (0) | 0.92 ppb (10) | 31.0 μg/m3 (28) | 16.0 μg/m3 (59) | 64.0 | |
| Jan. 20, 2020, 10 a.m. | 74.4 ppb (72) | 41.4 ppb (38) | 69.0 ppb (66) | 33.0 ppb (31) | 31.6 ppb (29) | N/A | 0.0 ppb (0) | 1.09 ppb (12) | 36.0 μg/m3 (33) | 17.0 μg/m3 (61) | 72.0 | |
| Jan. 20, 2020, 9 a.m. | 83.9 ppb (82) | 47.8 ppb (44) | 73.2 ppb (70) | 36.0 ppb (33) | 30.5 ppb (28) | N/A | 0.0 ppb (0) | 1.23 ppb (14) | 36.0 μg/m3 (33) | 22.0 μg/m3 (71) | 82.0 | |
| Jan. 20, 2020, 8 a.m. | 84.1 ppb (82) | 46.3 ppb (43) | 77.8 ppb (75) | 38.0 ppb (35) | 36.8 ppb (34) | N/A | 1.0 ppb (1) | 1.23 ppb (14) | 36.0 μg/m3 (33) | 23.0 μg/m3 (73) | 82.0 | |
| Jan. 20, 2020, 7 a.m. | 71.2 ppb (68) | 29.5 ppb (27) | 68.2 ppb (65) | 42.0 ppb (39) | 40.6 ppb (38) | N/A | 0.0 ppb (0) | 0.8 ppb (9) | 37.0 μg/m3 (34) | 19.0 μg/m3 (65) | 68.0 | |
| Jan. 20, 2020, 6 a.m. | 74.9 ppb (72) | 31.7 ppb (29) | 69.8 ppb (67) | 43.0 ppb (40) | 41.6 ppb (39) | N/A | 0.0 ppb (0) | 0.9 ppb (10) | 36.0 μg/m3 (33) | 17.0 μg/m3 (61) | 72.0 | |
| Jan. 20, 2020, 5 a.m. | 52.4 ppb (49) | 11.1 ppb (10) | 53.5 ppb (50) | 41.0 ppb (38) | 38.9 ppb (36) | N/A | 1.0 ppb (1) | 0.77 ppb (9) | 34.0 μg/m3 (31) | 18.0 μg/m3 (63) | 63.0 |