Seattle (Little Saigon) WA, US: 47.597222, -122.319722
Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Jan. 16, 2021, 9 a.m. | 26.2 ppb (25) | 12.2 ppb (12) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | 0.46 ppb (6) | N/A | 11.0 μg/m3 (46) | 46.0 | |
Jan. 16, 2021, 8 a.m. | 23.6 ppb (23) | 8.5 ppb (9) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | 0.39 ppb (5) | N/A | 10.0 μg/m3 (42) | 42.0 | |
Jan. 16, 2021, 7 a.m. | 36.3 ppb (35) | 18.4 ppb (18) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | 0.57 ppb (7) | N/A | 14.0 μg/m3 (55) | 55.0 | |
Jan. 16, 2021, 6 a.m. | 34.0 ppb (33) | 14.9 ppb (15) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | 0.56 ppb (7) | N/A | 16.0 μg/m3 (60) | 60.0 | |
Jan. 16, 2021, 5 a.m. | 31.8 ppb (30) | 10.6 ppb (10) | N/A | 21.0 ppb (20) | N/A | N/A | N/A | 0.49 ppb (6) | N/A | 17.0 μg/m3 (62) | 62.0 | |
Jan. 16, 2021, 4 a.m. | 45.4 ppb (43) | 20.5 ppb (20) | N/A | 25.0 ppb (24) | N/A | N/A | N/A | 0.7 ppb (8) | N/A | 21.0 μg/m3 (70) | 70.0 | |
Jan. 16, 2021, 3 a.m. | 39.8 ppb (38) | 13.1 ppb (13) | N/A | 27.0 ppb (26) | N/A | N/A | N/A | 0.72 ppb (8) | N/A | 16.0 μg/m3 (60) | 60.0 | |
Jan. 16, 2021, 2 a.m. | 32.1 ppb (31) | 7.7 ppb (8) | N/A | 24.0 ppb (23) | N/A | N/A | N/A | 0.53 ppb (6) | N/A | 9.0 μg/m3 (38) | 38.0 | |
Jan. 16, 2021, 1 a.m. | 25.8 ppb (25) | 5.9 ppb (6) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | 0.38 ppb (5) | N/A | 8.0 μg/m3 (34) | 34.0 | |
Jan. 16, 2021, midnight | 19.3 ppb (19) | 4.7 ppb (5) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | 0.32 ppb (4) | N/A | 8.0 μg/m3 (34) | 34.0 | |
Jan. 15, 2021, 11 p.m. | 18.1 ppb (18) | 6.8 ppb (7) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | 0.27 ppb (4) | N/A | 3.0 μg/m3 (13) | 18.0 | |
Jan. 15, 2021, 10 p.m. | 45.9 ppb (44) | 28.0 ppb (27) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | 0.45 ppb (6) | N/A | 4.0 μg/m3 (17) | 44.0 | |
Jan. 15, 2021, 9 p.m. | 48.4 ppb (46) | 30.5 ppb (29) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | 0.4 ppb (5) | N/A | 8.0 μg/m3 (34) | 46.0 | |
Jan. 15, 2021, 8 p.m. | 93.9 ppb (94) | 65.9 ppb (64) | N/A | 28.0 ppb (27) | N/A | N/A | N/A | 0.6 ppb (7) | N/A | 8.0 μg/m3 (34) | 94.0 | |
Jan. 15, 2021, 7 p.m. | 93.7 ppb (94) | 61.8 ppb (60) | N/A | 32.0 ppb (31) | N/A | N/A | N/A | 0.56 ppb (7) | N/A | 10.0 μg/m3 (42) | 94.0 | |
Jan. 15, 2021, 6 p.m. | 52.1 ppb (50) | 31.9 ppb (31) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | 0.46 ppb (6) | N/A | 6.0 μg/m3 (25) | 50.0 | |
Jan. 15, 2021, 5 p.m. | 83.8 ppb (83) | 58.1 ppb (56) | N/A | 26.0 ppb (25) | N/A | N/A | N/A | 0.67 ppb (8) | N/A | 6.0 μg/m3 (25) | 83.0 | |
Jan. 15, 2021, 4 p.m. | 54.2 ppb (52) | 29.7 ppb (29) | N/A | 25.0 ppb (24) | N/A | N/A | N/A | 0.47 ppb (6) | N/A | 5.0 μg/m3 (21) | 52.0 | |
Jan. 15, 2021, 3 p.m. | 61.6 ppb (60) | 36.7 ppb (35) | N/A | 25.0 ppb (24) | N/A | N/A | N/A | 0.41 ppb (5) | N/A | 6.0 μg/m3 (25) | 60.0 | |
Jan. 15, 2021, 2 p.m. | 112.7 ppb (104) | 81.3 ppb (81) | N/A | 31.0 ppb (30) | N/A | N/A | N/A | 0.65 ppb (8) | N/A | 9.0 μg/m3 (38) | 104.0 | |
Jan. 15, 2021, 1 p.m. | 92.8 ppb (93) | 66.0 ppb (64) | N/A | 27.0 ppb (26) | N/A | N/A | N/A | 0.65 ppb (8) | N/A | 9.0 μg/m3 (38) | 93.0 | |
Jan. 15, 2021, noon | 27.3 ppb (26) | 12.4 ppb (12) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | 0.37 ppb (5) | N/A | 4.0 μg/m3 (17) | 26.0 | |
Jan. 15, 2021, 11 a.m. | 7.2 ppb (7) | 1.7 ppb (2) | N/A | 6.0 ppb (6) | N/A | N/A | N/A | 0.11 ppb (2) | N/A | 1.0 μg/m3 (5) | 7.0 | |
Jan. 15, 2021, 10 a.m. | 5.8 ppb (6) | 1.5 ppb (2) | N/A | 4.0 ppb (4) | N/A | N/A | N/A | 0.09 ppb (2) | N/A | 1.0 μg/m3 (5) | 6.0 | |
Jan. 15, 2021, 9 a.m. | 8.8 ppb (9) | 2.1 ppb (2) | N/A | 7.0 ppb (7) | N/A | N/A | N/A | 0.12 ppb (2) | N/A | 4.0 μg/m3 (17) | 17.0 | |
Jan. 15, 2021, 8 a.m. | 16.5 ppb (16) | 2.3 ppb (3) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | 0.19 ppb (3) | N/A | 6.0 μg/m3 (25) | 25.0 | |
Jan. 15, 2021, 7 a.m. | 23.4 ppb (23) | 4.3 ppb (5) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | 0.24 ppb (3) | N/A | 8.0 μg/m3 (34) | 34.0 | |
Jan. 15, 2021, 6 a.m. | 31.4 ppb (30) | 11.2 ppb (11) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | 0.39 ppb (5) | N/A | 9.0 μg/m3 (38) | 38.0 | |
Jan. 15, 2021, 5 a.m. | 63.9 ppb (62) | 38.2 ppb (37) | N/A | 26.0 ppb (25) | N/A | N/A | N/A | 0.64 ppb (7) | N/A | 11.0 μg/m3 (46) | 62.0 | |
Jan. 15, 2021, 4 a.m. | 51.8 ppb (49) | 24.7 ppb (24) | N/A | 27.0 ppb (26) | N/A | N/A | N/A | 0.59 ppb (7) | N/A | 11.0 μg/m3 (46) | 49.0 | |
Jan. 15, 2021, 3 a.m. | 106.5 ppb (103) | 75.1 ppb (74) | N/A | 31.0 ppb (30) | N/A | N/A | N/A | 0.9 ppb (11) | N/A | 14.0 μg/m3 (55) | 103.0 | |
Jan. 15, 2021, 2 a.m. | 121.9 ppb (105) | 89.3 ppb (89) | N/A | 33.0 ppb (32) | N/A | N/A | N/A | 0.84 ppb (10) | N/A | 12.0 μg/m3 (50) | 105.0 | |
Jan. 15, 2021, 1 a.m. | 188.0 ppb (118) | 150.3 ppb (111) | N/A | 38.0 ppb (36) | N/A | N/A | N/A | 1.19 ppb (14) | N/A | 19.0 μg/m3 (66) | 118.0 | |
Jan. 15, 2021, midnight | 112.9 ppb (104) | 79.9 ppb (79) | N/A | 33.0 ppb (32) | N/A | N/A | N/A | 0.93 ppb (11) | N/A | 8.0 μg/m3 (34) | 104.0 | |
Jan. 14, 2021, 11 p.m. | 148.5 ppb (110) | 110.4 ppb (103) | N/A | 38.0 ppb (36) | N/A | N/A | N/A | 0.85 ppb (10) | N/A | 10.0 μg/m3 (42) | 110.0 | |
Jan. 14, 2021, 10 p.m. | 95.1 ppb (95) | 65.4 ppb (64) | N/A | 30.0 ppb (29) | N/A | N/A | N/A | 0.71 ppb (8) | N/A | 5.0 μg/m3 (21) | 95.0 | |
Jan. 14, 2021, 9 p.m. | 55.7 ppb (53) | 36.6 ppb (35) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | 0.56 ppb (7) | N/A | 0.0 μg/m3 (0) | 53.0 | |
Jan. 14, 2021, 8 p.m. | 44.7 ppb (43) | 27.0 ppb (26) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | 0.5 ppb (6) | N/A | 1.0 μg/m3 (5) | 43.0 | |
Jan. 14, 2021, 7 p.m. | 72.3 ppb (71) | 50.5 ppb (48) | N/A | 22.0 ppb (21) | N/A | N/A | N/A | 0.57 ppb (7) | N/A | 3.0 μg/m3 (13) | 71.0 | |
Jan. 14, 2021, 6 p.m. | 39.0 ppb (37) | 19.7 ppb (19) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | 0.37 ppb (5) | N/A | 6.0 μg/m3 (25) | 37.0 | |
Jan. 14, 2021, 5 p.m. | 70.3 ppb (69) | 43.6 ppb (42) | N/A | 27.0 ppb (26) | N/A | N/A | N/A | 0.5 ppb (6) | N/A | 9.0 μg/m3 (38) | 69.0 | |
Jan. 14, 2021, 4 p.m. | 133.7 ppb (108) | 98.6 ppb (99) | N/A | 35.0 ppb (34) | N/A | N/A | N/A | 0.64 ppb (7) | N/A | 9.0 μg/m3 (38) | 108.0 | |
Jan. 14, 2021, 3 p.m. | 75.8 ppb (75) | 44.7 ppb (43) | N/A | 31.0 ppb (30) | N/A | N/A | N/A | 0.42 ppb (5) | N/A | 5.0 μg/m3 (21) | 75.0 | |
Jan. 14, 2021, 2 p.m. | 25.2 ppb (24) | 12.7 ppb (12) | N/A | 13.0 ppb (13) | N/A | N/A | N/A | 0.29 ppb (4) | N/A | 0.0 μg/m3 (0) | 24.0 | |
Jan. 14, 2021, 1 p.m. | 16.4 ppb (16) | 3.4 ppb (4) | N/A | 13.0 ppb (13) | N/A | N/A | N/A | 0.21 ppb (3) | N/A | 2.0 μg/m3 (9) | 16.0 | |
Jan. 14, 2021, noon | 13.8 ppb (14) | 3.8 ppb (4) | N/A | 10.0 ppb (10) | N/A | N/A | N/A | 0.21 ppb (3) | N/A | 6.0 μg/m3 (25) | 25.0 | |
Jan. 14, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
Jan. 14, 2021, 10 a.m. | 10.4 ppb (10) | 1.5 ppb (2) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | 0.27 ppb (4) | N/A | 7.0 μg/m3 (30) | 30.0 | |
Jan. 14, 2021, 9 a.m. | 18.4 ppb (18) | 3.4 ppb (4) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | 0.39 ppb (5) | N/A | 11.0 μg/m3 (46) | 46.0 | |
Jan. 14, 2021, 8 a.m. | 24.9 ppb (24) | 5.1 ppb (5) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | 0.47 ppb (6) | N/A | 13.0 μg/m3 (53) | 53.0 | |
Jan. 14, 2021, 7 a.m. | 39.1 ppb (37) | 14.6 ppb (14) | N/A | 24.0 ppb (23) | N/A | N/A | N/A | 0.55 ppb (7) | N/A | 19.0 μg/m3 (66) | 66.0 | |
Jan. 14, 2021, 6 a.m. | 35.3 ppb (34) | 11.4 ppb (11) | N/A | 24.0 ppb (23) | N/A | N/A | N/A | 0.62 ppb (7) | N/A | 15.0 μg/m3 (58) | 58.0 | |
Jan. 14, 2021, 5 a.m. | 48.1 ppb (46) | 21.2 ppb (20) | N/A | 27.0 ppb (26) | N/A | N/A | N/A | 0.65 ppb (8) | N/A | 18.0 μg/m3 (64) | 64.0 | |
Jan. 14, 2021, 4 a.m. | 46.8 ppb (45) | 15.8 ppb (15) | N/A | 31.0 ppb (30) | N/A | N/A | N/A | 0.59 ppb (7) | N/A | 13.0 μg/m3 (53) | 53.0 | |
Jan. 14, 2021, 3 a.m. | 42.7 ppb (41) | 13.3 ppb (13) | N/A | 29.0 ppb (28) | N/A | N/A | N/A | 0.55 ppb (7) | N/A | 9.0 μg/m3 (38) | 41.0 | |
Jan. 14, 2021, 2 a.m. | 30.7 ppb (29) | 10.5 ppb (10) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | 0.42 ppb (5) | N/A | 11.0 μg/m3 (46) | 46.0 | |
Jan. 14, 2021, 1 a.m. | 45.2 ppb (43) | 16.8 ppb (16) | N/A | 28.0 ppb (27) | N/A | N/A | N/A | 0.56 ppb (7) | N/A | 16.0 μg/m3 (60) | 60.0 | |
Jan. 14, 2021, midnight | 55.0 ppb (53) | 27.4 ppb (26) | N/A | 28.0 ppb (27) | N/A | N/A | N/A | 0.61 ppb (7) | N/A | 8.0 μg/m3 (34) | 53.0 | |
Jan. 13, 2021, 11 p.m. | 49.3 ppb (47) | 28.0 ppb (27) | N/A | 21.0 ppb (20) | N/A | N/A | N/A | 0.56 ppb (7) | N/A | 7.0 μg/m3 (30) | 47.0 | |
Jan. 13, 2021, 10 p.m. | 45.7 ppb (44) | 26.1 ppb (25) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | 0.54 ppb (6) | N/A | 8.0 μg/m3 (34) | 44.0 | |
Jan. 13, 2021, 9 p.m. | 52.4 ppb (50) | 32.4 ppb (31) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | 0.52 ppb (6) | N/A | 7.0 μg/m3 (30) | 50.0 | |
Jan. 13, 2021, 8 p.m. | 51.4 ppb (49) | 31.3 ppb (30) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | 0.48 ppb (6) | N/A | 8.0 μg/m3 (34) | 49.0 | |
Jan. 13, 2021, 7 p.m. | 48.6 ppb (46) | 31.4 ppb (30) | N/A | 17.0 ppb (17) | N/A | N/A | N/A | 0.37 ppb (5) | N/A | 9.0 μg/m3 (38) | 46.0 | |
Jan. 13, 2021, 6 p.m. | 69.8 ppb (68) | 44.8 ppb (43) | N/A | 25.0 ppb (24) | N/A | N/A | N/A | 0.43 ppb (5) | N/A | 10.0 μg/m3 (42) | 68.0 | |
Jan. 13, 2021, 5 p.m. | 66.7 ppb (65) | 40.1 ppb (38) | N/A | 27.0 ppb (26) | N/A | N/A | N/A | 0.37 ppb (5) | N/A | 11.0 μg/m3 (46) | 65.0 | |
Jan. 13, 2021, 4 p.m. | 50.1 ppb (48) | 23.5 ppb (23) | N/A | 27.0 ppb (26) | N/A | N/A | N/A | 0.29 ppb (4) | N/A | 9.0 μg/m3 (38) | 48.0 | |
Jan. 13, 2021, 3 p.m. | 50.7 ppb (48) | 24.9 ppb (24) | N/A | 26.0 ppb (25) | N/A | N/A | N/A | 0.27 ppb (4) | N/A | 9.0 μg/m3 (38) | 48.0 | |
Jan. 13, 2021, 2 p.m. | 40.7 ppb (39) | 18.5 ppb (18) | N/A | 22.0 ppb (21) | N/A | N/A | N/A | 0.28 ppb (4) | N/A | 10.0 μg/m3 (42) | 42.0 | |
Jan. 13, 2021, 1 p.m. | 39.3 ppb (38) | 18.3 ppb (18) | N/A | 21.0 ppb (20) | N/A | N/A | N/A | 0.3 ppb (4) | N/A | 5.0 μg/m3 (21) | 38.0 | |
Jan. 13, 2021, noon | 14.9 ppb (15) | 4.6 ppb (5) | N/A | 10.0 ppb (10) | N/A | N/A | N/A | 0.19 ppb (3) | N/A | 2.0 μg/m3 (9) | 15.0 | |
Jan. 13, 2021, 11 a.m. | 11.3 ppb (11) | 2.7 ppb (3) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | 0.14 ppb (2) | N/A | -2.0 μg/m3 (0) | 11.0 | |
Jan. 13, 2021, 10 a.m. | 7.5 ppb (8) | 2.0 ppb (2) | N/A | 6.0 ppb (6) | N/A | N/A | N/A | 0.15 ppb (2) | N/A | 1.0 μg/m3 (5) | 8.0 | |
Jan. 13, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (13) | 13.0 | |
Jan. 13, 2021, 8 a.m. | 4.2 ppb (4) | 1.2 ppb (2) | N/A | 3.0 ppb (3) | N/A | N/A | N/A | 0.11 ppb (2) | N/A | 2.0 μg/m3 (9) | 9.0 | |
Jan. 13, 2021, 7 a.m. | 7.4 ppb (7) | 2.1 ppb (2) | N/A | 5.0 ppb (5) | N/A | N/A | N/A | 0.11 ppb (2) | N/A | 1.0 μg/m3 (5) | 7.0 | |
Jan. 13, 2021, 6 a.m. | 8.9 ppb (9) | 2.3 ppb (3) | N/A | 7.0 ppb (7) | N/A | N/A | N/A | 0.13 ppb (2) | N/A | -1.0 μg/m3 (0) | 9.0 | |
Jan. 13, 2021, 5 a.m. | 10.1 ppb (10) | 3.0 ppb (3) | N/A | 7.0 ppb (7) | N/A | N/A | N/A | 0.15 ppb (2) | N/A | -1.0 μg/m3 (0) | 10.0 | |
Jan. 13, 2021, 4 a.m. | 11.2 ppb (11) | 3.6 ppb (4) | N/A | 8.0 ppb (8) | N/A | N/A | N/A | 0.16 ppb (3) | N/A | 0.0 μg/m3 (0) | 11.0 | |
Jan. 13, 2021, 3 a.m. | 11.7 ppb (12) | 2.2 ppb (3) | N/A | 10.0 ppb (10) | N/A | N/A | N/A | 0.22 ppb (3) | N/A | 1.0 μg/m3 (5) | 12.0 | |
Jan. 13, 2021, 2 a.m. | 14.2 ppb (14) | 3.0 ppb (3) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | 0.23 ppb (3) | N/A | 2.0 μg/m3 (9) | 14.0 | |
Jan. 13, 2021, 1 a.m. | 18.3 ppb (18) | 4.3 ppb (5) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | 0.28 ppb (4) | N/A | 2.0 μg/m3 (9) | 18.0 | |
Jan. 13, 2021, midnight | 33.2 ppb (32) | 11.9 ppb (12) | N/A | 21.0 ppb (20) | N/A | N/A | N/A | 0.32 ppb (4) | N/A | 5.0 μg/m3 (21) | 32.0 | |
Jan. 12, 2021, 11 p.m. | 74.2 ppb (73) | 46.6 ppb (44) | N/A | 28.0 ppb (27) | N/A | N/A | N/A | 0.67 ppb (8) | N/A | 9.0 μg/m3 (38) | 73.0 | |
Jan. 12, 2021, 10 p.m. | 53.3 ppb (51) | 33.5 ppb (32) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | 0.49 ppb (6) | N/A | 3.0 μg/m3 (13) | 51.0 | |
Jan. 12, 2021, 9 p.m. | 41.0 ppb (39) | 23.6 ppb (23) | N/A | 17.0 ppb (17) | N/A | N/A | N/A | 0.42 ppb (5) | N/A | 4.0 μg/m3 (17) | 39.0 | |
Jan. 12, 2021, 8 p.m. | 42.7 ppb (41) | 21.7 ppb (21) | N/A | 21.0 ppb (20) | N/A | N/A | N/A | 0.36 ppb (5) | N/A | 6.0 μg/m3 (25) | 41.0 | |
Jan. 12, 2021, 7 p.m. | 33.0 ppb (32) | 18.6 ppb (18) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | 0.25 ppb (3) | N/A | 2.0 μg/m3 (9) | 32.0 | |
Jan. 12, 2021, 6 p.m. | 39.2 ppb (37) | 21.2 ppb (20) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | 0.25 ppb (3) | N/A | 3.0 μg/m3 (13) | 37.0 | |
Jan. 12, 2021, 5 p.m. | 57.2 ppb (55) | 32.4 ppb (31) | N/A | 25.0 ppb (24) | N/A | N/A | N/A | 0.31 ppb (4) | N/A | 5.0 μg/m3 (21) | 55.0 | |
Jan. 12, 2021, 4 p.m. | 49.7 ppb (47) | 23.4 ppb (23) | N/A | 26.0 ppb (25) | N/A | N/A | N/A | 0.33 ppb (4) | N/A | 1.0 μg/m3 (5) | 47.0 | |
Jan. 12, 2021, 3 p.m. | 21.2 ppb (20) | 4.9 ppb (5) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | 0.23 ppb (3) | N/A | -2.0 μg/m3 (0) | 20.0 | |
Jan. 12, 2021, 2 p.m. | 8.8 ppb (9) | 1.3 ppb (2) | N/A | 8.0 ppb (8) | N/A | N/A | N/A | 0.14 ppb (2) | N/A | -2.0 μg/m3 (0) | 9.0 | |
Jan. 12, 2021, 1 p.m. | 9.9 ppb (10) | 1.4 ppb (2) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | 0.18 ppb (3) | N/A | -1.0 μg/m3 (0) | 10.0 | |
Jan. 12, 2021, noon | 11.0 ppb (11) | 1.7 ppb (2) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | 0.14 ppb (2) | N/A | 0.0 μg/m3 (0) | 11.0 | |
Jan. 12, 2021, 11 a.m. | 9.9 ppb (10) | 1.8 ppb (2) | N/A | 8.0 ppb (8) | N/A | N/A | N/A | 0.15 ppb (2) | N/A | 1.0 μg/m3 (5) | 10.0 | |
Jan. 12, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 μg/m3 (5) | 5.0 | |
Jan. 12, 2021, 9 a.m. | 6.1 ppb (6) | 1.4 ppb (2) | N/A | 5.0 ppb (5) | N/A | N/A | N/A | 0.11 ppb (2) | N/A | 0.0 μg/m3 (0) | 6.0 | |
Jan. 12, 2021, 8 a.m. | 6.7 ppb (7) | 1.2 ppb (2) | N/A | 5.0 ppb (5) | N/A | N/A | N/A | 0.14 ppb (2) | N/A | 1.0 μg/m3 (5) | 7.0 | |
Jan. 12, 2021, 7 a.m. | 11.7 ppb (12) | 2.5 ppb (3) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | 0.16 ppb (3) | N/A | 1.0 μg/m3 (5) | 12.0 | |
Jan. 12, 2021, 6 a.m. | 9.7 ppb (10) | 2.1 ppb (2) | N/A | 8.0 ppb (8) | N/A | N/A | N/A | 0.14 ppb (2) | N/A | 0.0 μg/m3 (0) | 10.0 | |
Jan. 12, 2021, 5 a.m. | 9.2 ppb (9) | 2.3 ppb (3) | N/A | 7.0 ppb (7) | N/A | N/A | N/A | 0.16 ppb (3) | N/A | 2.0 μg/m3 (9) | 9.0 | |
Jan. 12, 2021, 4 a.m. | 14.1 ppb (14) | 3.2 ppb (4) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | 0.19 ppb (3) | N/A | 2.0 μg/m3 (9) | 14.0 | |
Jan. 12, 2021, 3 a.m. | 13.7 ppb (13) | 2.5 ppb (3) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | 0.21 ppb (3) | N/A | -1.0 μg/m3 (0) | 13.0 | |
Jan. 12, 2021, 2 a.m. | 15.7 ppb (15) | 2.9 ppb (3) | N/A | 13.0 ppb (13) | N/A | N/A | N/A | 0.24 ppb (3) | N/A | 0.0 μg/m3 (0) | 15.0 | |
Jan. 12, 2021, 1 a.m. | 33.7 ppb (32) | 11.0 ppb (11) | N/A | 23.0 ppb (22) | N/A | N/A | N/A | 0.43 ppb (5) | N/A | 3.0 μg/m3 (13) | 32.0 | |
Jan. 12, 2021, midnight | 38.4 ppb (37) | 14.9 ppb (15) | N/A | 23.0 ppb (22) | N/A | N/A | N/A | 0.36 ppb (5) | N/A | 1.0 μg/m3 (5) | 37.0 | |
Jan. 11, 2021, 11 p.m. | 19.6 ppb (19) | 6.2 ppb (6) | N/A | 13.0 ppb (13) | N/A | N/A | N/A | 0.25 ppb (3) | N/A | 0.0 μg/m3 (0) | 19.0 | |
Jan. 11, 2021, 10 p.m. | 24.3 ppb (23) | 11.7 ppb (12) | N/A | 13.0 ppb (13) | N/A | N/A | N/A | 0.28 ppb (4) | N/A | -2.0 μg/m3 (0) | 23.0 | |
Jan. 11, 2021, 9 p.m. | 25.7 ppb (25) | 8.9 ppb (9) | N/A | 17.0 ppb (17) | N/A | N/A | N/A | 0.23 ppb (3) | N/A | 0.0 μg/m3 (0) | 25.0 | |
Jan. 11, 2021, 8 p.m. | 31.0 ppb (30) | 12.7 ppb (12) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | 0.27 ppb (4) | N/A | 4.0 μg/m3 (17) | 30.0 | |
Jan. 11, 2021, 7 p.m. | 36.5 ppb (35) | 16.0 ppb (16) | N/A | 21.0 ppb (20) | N/A | N/A | N/A | 0.33 ppb (4) | N/A | 6.0 μg/m3 (25) | 35.0 | |
Jan. 11, 2021, 6 p.m. | 55.4 ppb (53) | 30.7 ppb (29) | N/A | 25.0 ppb (24) | N/A | N/A | N/A | 0.46 ppb (6) | N/A | 6.0 μg/m3 (25) | 53.0 | |
Jan. 11, 2021, 5 p.m. | 107.9 ppb (103) | 79.8 ppb (79) | N/A | 28.0 ppb (27) | N/A | N/A | N/A | 0.57 ppb (7) | N/A | 10.0 μg/m3 (42) | 103.0 | |
Jan. 11, 2021, 4 p.m. | 133.2 ppb (108) | 103.5 ppb (102) | N/A | 30.0 ppb (29) | N/A | N/A | N/A | 0.68 ppb (8) | N/A | 12.0 μg/m3 (50) | 108.0 | |
Jan. 11, 2021, 3 p.m. | 25.8 ppb (25) | 11.9 ppb (12) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | 0.21 ppb (3) | N/A | -2.0 μg/m3 (0) | 25.0 | |
Jan. 11, 2021, 2 p.m. | 15.4 ppb (15) | 3.6 ppb (4) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | 0.18 ppb (3) | N/A | 0.0 μg/m3 (0) | 15.0 | |
Jan. 11, 2021, 1 p.m. | 46.1 ppb (44) | 28.1 ppb (27) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | 0.47 ppb (6) | N/A | 3.0 μg/m3 (13) | 44.0 | |
Jan. 11, 2021, noon | 14.2 ppb (14) | 3.4 ppb (4) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | 0.15 ppb (2) | N/A | 6.0 μg/m3 (25) | 25.0 | |
Jan. 11, 2021, 11 a.m. | 40.1 ppb (38) | 21.1 ppb (20) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | 0.32 ppb (4) | N/A | 6.0 μg/m3 (25) | 38.0 | |
Jan. 11, 2021, 10 a.m. | 20.9 ppb (20) | 6.2 ppb (6) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | 0.26 ppb (4) | N/A | 7.0 μg/m3 (30) | 30.0 | |
Jan. 11, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 μg/m3 (42) | 42.0 | |
Jan. 11, 2021, 8 a.m. | 23.4 ppb (23) | 7.5 ppb (8) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | 0.25 ppb (3) | N/A | 4.0 μg/m3 (17) | 23.0 | |
Jan. 11, 2021, 7 a.m. | 26.4 ppb (25) | 11.1 ppb (11) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | 0.33 ppb (4) | N/A | 5.0 μg/m3 (21) | 25.0 | |
Jan. 11, 2021, 6 a.m. | 15.6 ppb (15) | 3.9 ppb (4) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | 0.22 ppb (3) | N/A | 6.0 μg/m3 (25) | 25.0 | |
Jan. 11, 2021, 5 a.m. | 20.8 ppb (20) | 7.2 ppb (7) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | 0.36 ppb (5) | N/A | 6.0 μg/m3 (25) | 25.0 | |
Jan. 11, 2021, 4 a.m. | 25.4 ppb (24) | 9.2 ppb (9) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | 0.34 ppb (4) | N/A | 11.0 μg/m3 (46) | 46.0 | |
Jan. 11, 2021, 3 a.m. | 37.1 ppb (35) | 18.3 ppb (18) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | 0.59 ppb (7) | N/A | 10.0 μg/m3 (42) | 42.0 | |
Jan. 11, 2021, 2 a.m. | 41.6 ppb (40) | 21.6 ppb (21) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | 0.55 ppb (7) | N/A | 9.0 μg/m3 (38) | 40.0 | |
Jan. 11, 2021, 1 a.m. | 40.6 ppb (39) | 20.7 ppb (20) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | 0.57 ppb (7) | N/A | 8.0 μg/m3 (34) | 39.0 | |
Jan. 11, 2021, midnight | 19.7 ppb (19) | 5.9 ppb (6) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | 0.27 ppb (4) | N/A | 6.0 μg/m3 (25) | 25.0 | |
Jan. 10, 2021, 11 p.m. | 19.1 ppb (19) | 7.6 ppb (8) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | 0.28 ppb (4) | N/A | 5.0 μg/m3 (21) | 21.0 | |
Jan. 10, 2021, 10 p.m. | 26.9 ppb (26) | 14.9 ppb (15) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | 0.41 ppb (5) | N/A | 8.0 μg/m3 (34) | 34.0 | |
Jan. 10, 2021, 9 p.m. | 52.6 ppb (50) | 34.1 ppb (33) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | 0.45 ppb (6) | N/A | 5.0 μg/m3 (21) | 50.0 | |
Jan. 10, 2021, 8 p.m. | 64.1 ppb (62) | 44.2 ppb (42) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | 0.55 ppb (7) | N/A | 4.0 μg/m3 (17) | 62.0 | |
Jan. 10, 2021, 7 p.m. | 52.9 ppb (50) | 33.2 ppb (32) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | 0.56 ppb (7) | N/A | 5.0 μg/m3 (21) | 50.0 | |
Jan. 10, 2021, 6 p.m. | 34.5 ppb (33) | 18.3 ppb (18) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | 0.32 ppb (4) | N/A | 6.0 μg/m3 (25) | 33.0 | |
Jan. 10, 2021, 5 p.m. | 46.4 ppb (44) | 27.7 ppb (27) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | 0.44 ppb (5) | N/A | 10.0 μg/m3 (42) | 44.0 | |
Jan. 10, 2021, 4 p.m. | 44.4 ppb (42) | 22.3 ppb (22) | N/A | 22.0 ppb (21) | N/A | N/A | N/A | 0.41 ppb (5) | N/A | 11.0 μg/m3 (46) | 46.0 | |
Jan. 10, 2021, 3 p.m. | 55.0 ppb (53) | 31.0 ppb (30) | N/A | 24.0 ppb (23) | N/A | N/A | N/A | 0.37 ppb (5) | N/A | 10.0 μg/m3 (42) | 53.0 | |
Jan. 10, 2021, 2 p.m. | 45.4 ppb (43) | 22.7 ppb (22) | N/A | 23.0 ppb (22) | N/A | N/A | N/A | 0.41 ppb (5) | N/A | 9.0 μg/m3 (38) | 43.0 | |
Jan. 10, 2021, 1 p.m. | 47.2 ppb (45) | 25.7 ppb (25) | N/A | 21.0 ppb (20) | N/A | N/A | N/A | 0.35 ppb (4) | N/A | 9.0 μg/m3 (38) | 45.0 | |
Jan. 10, 2021, noon | 37.8 ppb (36) | 16.6 ppb (16) | N/A | 21.0 ppb (20) | N/A | N/A | N/A | 0.29 ppb (4) | N/A | 8.0 μg/m3 (34) | 36.0 | |
Jan. 10, 2021, 11 a.m. | 37.3 ppb (36) | 17.8 ppb (17) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | 0.34 ppb (4) | N/A | 13.0 μg/m3 (53) | 53.0 | |
Jan. 10, 2021, 10 a.m. | 45.4 ppb (43) | 25.7 ppb (25) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | 0.36 ppb (5) | N/A | 13.0 μg/m3 (53) | 53.0 | |
Jan. 10, 2021, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 μg/m3 (34) | 34.0 | |
Jan. 10, 2021, 8 a.m. | 56.8 ppb (54) | 33.9 ppb (32) | N/A | 23.0 ppb (22) | N/A | N/A | N/A | 0.46 ppb (6) | N/A | 12.0 μg/m3 (50) | 54.0 | |
Jan. 10, 2021, 7 a.m. | 68.3 ppb (67) | 44.4 ppb (42) | N/A | 24.0 ppb (23) | N/A | N/A | N/A | 0.57 ppb (7) | N/A | 13.0 μg/m3 (53) | 67.0 | |
Jan. 10, 2021, 6 a.m. | 62.1 ppb (60) | 37.3 ppb (36) | N/A | 25.0 ppb (24) | N/A | N/A | N/A | 0.63 ppb (7) | N/A | 8.0 μg/m3 (34) | 60.0 | |
Jan. 10, 2021, 5 a.m. | 29.3 ppb (28) | 10.9 ppb (11) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | 0.48 ppb (6) | N/A | 7.0 μg/m3 (30) | 30.0 | |
Jan. 10, 2021, 4 a.m. | 44.1 ppb (42) | 22.6 ppb (22) | N/A | 22.0 ppb (21) | N/A | N/A | N/A | 0.63 ppb (7) | N/A | 7.0 μg/m3 (30) | 42.0 | |
Jan. 10, 2021, 3 a.m. | 76.8 ppb (76) | 53.8 ppb (51) | N/A | 23.0 ppb (22) | N/A | N/A | N/A | 0.86 ppb (11) | N/A | 16.0 μg/m3 (60) | 76.0 | |
Jan. 10, 2021, 2 a.m. | 68.7 ppb (67) | 46.0 ppb (44) | N/A | 23.0 ppb (22) | N/A | N/A | N/A | 0.66 ppb (8) | N/A | 9.0 μg/m3 (38) | 67.0 | |
Jan. 10, 2021, 1 a.m. | 99.6 ppb (100) | 73.0 ppb (72) | N/A | 27.0 ppb (26) | N/A | N/A | N/A | 0.74 ppb (8) | N/A | 10.0 μg/m3 (42) | 100.0 | |
Jan. 10, 2021, midnight | 95.6 ppb (96) | 67.5 ppb (66) | N/A | 28.0 ppb (27) | N/A | N/A | N/A | 0.77 ppb (10) | N/A | 12.0 μg/m3 (50) | 96.0 | |
Jan. 9, 2021, 11 p.m. | 73.1 ppb (72) | 46.6 ppb (44) | N/A | 27.0 ppb (26) | N/A | N/A | N/A | 0.54 ppb (6) | N/A | 10.0 μg/m3 (42) | 72.0 | |
Jan. 9, 2021, 10 p.m. | 120.9 ppb (105) | 93.5 ppb (94) | N/A | 27.0 ppb (26) | N/A | N/A | N/A | 0.7 ppb (8) | N/A | 13.0 μg/m3 (53) | 105.0 | |
Jan. 9, 2021, 9 p.m. | 95.0 ppb (95) | 72.3 ppb (71) | N/A | 23.0 ppb (22) | N/A | N/A | N/A | 0.63 ppb (7) | N/A | 11.0 μg/m3 (46) | 95.0 | |
Jan. 9, 2021, 8 p.m. | 44.7 ppb (43) | 28.8 ppb (28) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | 0.47 ppb (6) | N/A | 6.0 μg/m3 (25) | 43.0 | |
Jan. 9, 2021, 7 p.m. | 34.5 ppb (33) | 22.1 ppb (21) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | 0.37 ppb (5) | N/A | 0.0 μg/m3 (0) | 33.0 | |
Jan. 9, 2021, 6 p.m. | 27.7 ppb (27) | 14.7 ppb (14) | N/A | 13.0 ppb (13) | N/A | N/A | N/A | 0.35 ppb (4) | N/A | 1.0 μg/m3 (5) | 27.0 | |
Jan. 9, 2021, 5 p.m. | 21.7 ppb (21) | 10.2 ppb (10) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | 0.25 ppb (3) | N/A | 3.0 μg/m3 (13) | 21.0 | |
Jan. 9, 2021, 4 p.m. | 34.3 ppb (33) | 17.4 ppb (17) | N/A | 17.0 ppb (17) | N/A | N/A | N/A | 0.27 ppb (4) | N/A | 5.0 μg/m3 (21) | 33.0 | |
Jan. 9, 2021, 3 p.m. | 30.2 ppb (29) | 15.9 ppb (15) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | 0.27 ppb (4) | N/A | 4.0 μg/m3 (17) | 29.0 | |
Jan. 9, 2021, 2 p.m. | 11.0 ppb (11) | 2.4 ppb (3) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | 0.12 ppb (2) | N/A | 5.0 μg/m3 (21) | 21.0 | |
Jan. 9, 2021, 1 p.m. | 18.4 ppb (18) | 5.3 ppb (5) | N/A | 13.0 ppb (13) | N/A | N/A | N/A | 0.19 ppb (3) | N/A | 6.0 μg/m3 (25) | 25.0 | |
Jan. 9, 2021, noon | 12.7 ppb (12) | 4.0 ppb (4) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | 0.14 ppb (2) | N/A | 4.0 μg/m3 (17) | 17.0 | |
Jan. 9, 2021, 11 a.m. | 11.1 ppb (11) | 2.7 ppb (3) | N/A | 8.0 ppb (8) | N/A | N/A | N/A | 0.17 ppb (3) | N/A | 3.0 μg/m3 (13) | 13.0 | |
Jan. 9, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 μg/m3 (21) | 21.0 |