San Jose (Downtown) CA, US: 37.3483, -121.8947
Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Jan. 18, 2021, 9 p.m. | 2.3 ppb (3) | -0.4 ppb (0) | N/A | 3.0 ppb (3) | N/A | N/A | 39.0 ppb (37) | 0.13 ppb (2) | N/A | 6.0 μg/m3 (25) | 37.0 | |
Jan. 18, 2021, 8 p.m. | 3.8 ppb (4) | 0.4 ppb (1) | N/A | 3.0 ppb (3) | N/A | N/A | 39.0 ppb (37) | 0.12 ppb (2) | N/A | 5.0 μg/m3 (21) | 37.0 | |
Jan. 18, 2021, 7 p.m. | 3.8 ppb (4) | -0.1 ppb (0) | N/A | 4.0 ppb (4) | N/A | N/A | 36.0 ppb (34) | 0.13 ppb (2) | N/A | 5.0 μg/m3 (21) | 34.0 | |
Jan. 18, 2021, 6 p.m. | 4.6 ppb (5) | 0.1 ppb (1) | N/A | 4.0 ppb (4) | N/A | N/A | 35.0 ppb (33) | 0.13 ppb (2) | N/A | 6.0 μg/m3 (25) | 33.0 | |
Jan. 18, 2021, 5 p.m. | 4.7 ppb (5) | 0.0 ppb (0) | N/A | 5.0 ppb (5) | N/A | N/A | 33.0 ppb (31) | 0.14 ppb (2) | N/A | 5.0 μg/m3 (21) | 31.0 | |
Jan. 18, 2021, 4 p.m. | 3.5 ppb (4) | -0.4 ppb (0) | N/A | 4.0 ppb (4) | N/A | N/A | 33.0 ppb (31) | 0.14 ppb (2) | N/A | 2.0 μg/m3 (9) | 31.0 | |
Jan. 18, 2021, 3 p.m. | 5.8 ppb (6) | -0.3 ppb (0) | N/A | 6.0 ppb (6) | N/A | N/A | 30.0 ppb (28) | 0.16 ppb (3) | N/A | 0.0 μg/m3 (0) | 28.0 | |
Jan. 18, 2021, 2 p.m. | 3.2 ppb (4) | -0.7 ppb (0) | N/A | 4.0 ppb (4) | N/A | N/A | 32.0 ppb (30) | 0.14 ppb (2) | N/A | 1.0 μg/m3 (5) | 30.0 | |
Jan. 18, 2021, 1 p.m. | 2.0 ppb (2) | -0.7 ppb (0) | N/A | 3.0 ppb (3) | N/A | N/A | 32.0 ppb (30) | 0.14 ppb (2) | N/A | 2.0 μg/m3 (9) | 30.0 | |
Jan. 18, 2021, noon | 4.3 ppb (5) | -0.7 ppb (0) | N/A | 5.0 ppb (5) | N/A | N/A | 27.0 ppb (25) | 0.17 ppb (3) | N/A | 6.0 μg/m3 (25) | 25.0 | |
Jan. 18, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.0 μg/m3 (46) | 46.0 | |
Jan. 18, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 μg/m3 (50) | 50.0 | |
Jan. 18, 2021, 9 a.m. | 47.4 ppb (45) | 20.6 ppb (20) | N/A | 27.0 ppb (26) | N/A | N/A | 0.0 ppb (0) | 0.89 ppb (11) | N/A | 17.0 μg/m3 (62) | 62.0 | |
Jan. 18, 2021, 8 a.m. | 46.1 ppb (44) | 19.2 ppb (19) | N/A | 27.0 ppb (26) | N/A | N/A | 0.0 ppb (0) | 0.95 ppb (11) | N/A | 17.0 μg/m3 (62) | 62.0 | |
Jan. 18, 2021, 7 a.m. | 53.7 ppb (51) | 26.1 ppb (25) | N/A | 28.0 ppb (27) | N/A | N/A | 0.0 ppb (0) | 1.08 ppb (13) | N/A | 17.0 μg/m3 (62) | 62.0 | |
Jan. 18, 2021, 6 a.m. | 61.0 ppb (59) | 32.0 ppb (31) | N/A | 29.0 ppb (28) | N/A | N/A | 1.0 ppb (1) | 1.27 ppb (15) | N/A | 19.0 μg/m3 (66) | 66.0 | |
Jan. 18, 2021, 5 a.m. | 57.7 ppb (55) | 26.1 ppb (25) | N/A | 32.0 ppb (31) | N/A | N/A | 1.0 ppb (1) | 1.17 ppb (14) | N/A | 25.0 μg/m3 (79) | 79.0 | |
Jan. 18, 2021, 4 a.m. | 42.1 ppb (40) | 8.4 ppb (8) | N/A | 34.0 ppb (33) | N/A | N/A | 3.0 ppb (3) | 0.8 ppb (10) | N/A | 24.0 μg/m3 (77) | 77.0 | |
Jan. 18, 2021, 3 a.m. | 28.2 ppb (27) | 0.6 ppb (1) | N/A | 28.0 ppb (27) | N/A | N/A | 10.0 ppb (10) | 0.46 ppb (6) | N/A | 10.0 μg/m3 (42) | 42.0 | |
Jan. 18, 2021, 2 a.m. | 10.5 ppb (10) | -0.6 ppb (0) | N/A | 11.0 ppb (11) | N/A | N/A | 26.0 ppb (25) | 0.3 ppb (4) | N/A | 7.0 μg/m3 (30) | 30.0 | |
Jan. 18, 2021, 1 a.m. | 8.2 ppb (8) | -0.6 ppb (0) | N/A | 9.0 ppb (9) | N/A | N/A | 30.0 ppb (28) | 0.26 ppb (4) | N/A | 7.0 μg/m3 (30) | 30.0 | |
Jan. 18, 2021, midnight | 4.9 ppb (5) | -0.4 ppb (0) | N/A | 5.0 ppb (5) | N/A | N/A | 35.0 ppb (33) | 0.19 ppb (3) | N/A | 5.0 μg/m3 (21) | 33.0 | |
Jan. 17, 2021, 11 p.m. | 3.7 ppb (4) | -0.2 ppb (0) | N/A | 4.0 ppb (4) | N/A | N/A | 37.0 ppb (35) | 0.18 ppb (3) | N/A | 7.0 μg/m3 (30) | 35.0 | |
Jan. 17, 2021, 10 p.m. | 3.6 ppb (4) | -0.2 ppb (0) | N/A | 4.0 ppb (4) | N/A | N/A | 36.0 ppb (34) | 0.18 ppb (3) | N/A | 7.0 μg/m3 (30) | 34.0 | |
Jan. 17, 2021, 9 p.m. | 4.4 ppb (5) | 0.1 ppb (1) | N/A | 4.0 ppb (4) | N/A | N/A | 34.0 ppb (32) | 0.2 ppb (3) | N/A | 4.0 μg/m3 (17) | 32.0 | |
Jan. 17, 2021, 8 p.m. | 12.8 ppb (13) | 2.4 ppb (3) | N/A | 10.0 ppb (10) | N/A | N/A | 27.0 ppb (25) | 0.33 ppb (4) | N/A | 15.0 μg/m3 (58) | 58.0 | |
Jan. 17, 2021, 7 p.m. | 17.4 ppb (17) | 4.5 ppb (5) | N/A | 13.0 ppb (13) | N/A | N/A | 20.0 ppb (19) | 0.39 ppb (5) | N/A | 11.0 μg/m3 (46) | 46.0 | |
Jan. 17, 2021, 6 p.m. | 18.0 ppb (17) | 5.3 ppb (5) | N/A | 13.0 ppb (13) | N/A | N/A | 16.0 ppb (15) | 0.39 ppb (5) | N/A | 13.0 μg/m3 (53) | 53.0 | |
Jan. 17, 2021, 5 p.m. | 37.9 ppb (36) | 17.3 ppb (17) | N/A | 21.0 ppb (20) | N/A | N/A | 6.0 ppb (6) | 0.62 ppb (7) | N/A | 14.0 μg/m3 (55) | 55.0 | |
Jan. 17, 2021, 4 p.m. | 50.7 ppb (48) | 32.5 ppb (31) | N/A | 18.0 ppb (17) | N/A | N/A | 1.0 ppb (1) | 0.85 ppb (10) | N/A | 13.0 μg/m3 (53) | 53.0 | |
Jan. 17, 2021, 3 p.m. | 52.5 ppb (50) | 38.6 ppb (37) | N/A | 14.0 ppb (14) | N/A | N/A | 0.0 ppb (0) | 0.92 ppb (11) | N/A | 13.0 μg/m3 (53) | 53.0 | |
Jan. 17, 2021, 2 p.m. | 47.5 ppb (45) | 33.6 ppb (32) | N/A | 14.0 ppb (14) | N/A | N/A | 0.0 ppb (0) | 0.88 ppb (11) | N/A | 14.0 μg/m3 (55) | 55.0 | |
Jan. 17, 2021, 1 p.m. | 42.7 ppb (41) | 29.0 ppb (28) | N/A | 14.0 ppb (14) | N/A | N/A | 0.0 ppb (0) | 0.87 ppb (11) | N/A | 14.0 μg/m3 (55) | 55.0 | |
Jan. 17, 2021, noon | 43.8 ppb (42) | 30.2 ppb (29) | N/A | 14.0 ppb (14) | N/A | N/A | 0.0 ppb (0) | 0.89 ppb (11) | N/A | 15.0 μg/m3 (58) | 58.0 | |
Jan. 17, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 μg/m3 (60) | 60.0 | |
Jan. 17, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 μg/m3 (64) | 64.0 | |
Jan. 17, 2021, 9 a.m. | 36.4 ppb (35) | 20.3 ppb (20) | N/A | 16.0 ppb (16) | N/A | N/A | 0.0 ppb (0) | 0.72 ppb (8) | N/A | 13.0 μg/m3 (53) | 53.0 | |
Jan. 17, 2021, 8 a.m. | 27.0 ppb (26) | 8.9 ppb (9) | N/A | 18.0 ppb (17) | N/A | N/A | 0.0 ppb (0) | 0.54 ppb (6) | N/A | 12.0 μg/m3 (50) | 50.0 | |
Jan. 17, 2021, 7 a.m. | 21.3 ppb (21) | 4.7 ppb (5) | N/A | 17.0 ppb (17) | N/A | N/A | 1.0 ppb (1) | 0.51 ppb (6) | N/A | 15.0 μg/m3 (58) | 58.0 | |
Jan. 17, 2021, 6 a.m. | 14.9 ppb (15) | 1.1 ppb (2) | N/A | 14.0 ppb (14) | N/A | N/A | 4.0 ppb (4) | 0.36 ppb (5) | N/A | 5.0 μg/m3 (21) | 21.0 | |
Jan. 17, 2021, 5 a.m. | 16.2 ppb (16) | 1.4 ppb (2) | N/A | 15.0 ppb (15) | N/A | N/A | 5.0 ppb (5) | 0.43 ppb (5) | N/A | 4.0 μg/m3 (17) | 17.0 | |
Jan. 17, 2021, 4 a.m. | 27.0 ppb (26) | 4.0 ppb (4) | N/A | 23.0 ppb (22) | N/A | N/A | 2.0 ppb (2) | 0.58 ppb (7) | N/A | 17.0 μg/m3 (62) | 62.0 | |
Jan. 17, 2021, 3 a.m. | 20.9 ppb (20) | 2.1 ppb (2) | N/A | 19.0 ppb (18) | N/A | N/A | 7.0 ppb (7) | 0.43 ppb (5) | N/A | 14.0 μg/m3 (55) | 55.0 | |
Jan. 17, 2021, 2 a.m. | 21.7 ppb (21) | 0.5 ppb (1) | N/A | 21.0 ppb (20) | N/A | N/A | 10.0 ppb (10) | 0.47 ppb (6) | N/A | 20.0 μg/m3 (68) | 68.0 | |
Jan. 17, 2021, 1 a.m. | 19.6 ppb (19) | 0.5 ppb (1) | N/A | 19.0 ppb (18) | N/A | N/A | 16.0 ppb (15) | 0.37 ppb (5) | N/A | 11.0 μg/m3 (46) | 46.0 | |
Jan. 17, 2021, midnight | 11.7 ppb (12) | 0.4 ppb (1) | N/A | 11.0 ppb (11) | N/A | N/A | 27.0 ppb (25) | 0.28 ppb (4) | N/A | 8.0 μg/m3 (34) | 34.0 | |
Jan. 16, 2021, 11 p.m. | 8.0 ppb (8) | 0.4 ppb (1) | N/A | 8.0 ppb (8) | N/A | N/A | 32.0 ppb (30) | 0.27 ppb (4) | N/A | 11.0 μg/m3 (46) | 46.0 | |
Jan. 16, 2021, 10 p.m. | 12.4 ppb (12) | 1.7 ppb (2) | N/A | 11.0 ppb (11) | N/A | N/A | 28.0 ppb (26) | 0.33 ppb (4) | N/A | 14.0 μg/m3 (55) | 55.0 | |
Jan. 16, 2021, 9 p.m. | 14.3 ppb (14) | 2.6 ppb (3) | N/A | 12.0 ppb (12) | N/A | N/A | 26.0 ppb (25) | 0.35 ppb (4) | N/A | 13.0 μg/m3 (53) | 53.0 | |
Jan. 16, 2021, 8 p.m. | 14.8 ppb (14) | 3.3 ppb (4) | N/A | 12.0 ppb (12) | N/A | N/A | 23.0 ppb (22) | 0.34 ppb (4) | N/A | 15.0 μg/m3 (58) | 58.0 | |
Jan. 16, 2021, 7 p.m. | 29.7 ppb (29) | 10.5 ppb (10) | N/A | 19.0 ppb (18) | N/A | N/A | 15.0 ppb (14) | 0.5 ppb (6) | N/A | 22.0 μg/m3 (72) | 72.0 | |
Jan. 16, 2021, 6 p.m. | 36.6 ppb (35) | 15.3 ppb (15) | N/A | 21.0 ppb (20) | N/A | N/A | 11.0 ppb (11) | 0.54 ppb (6) | N/A | 23.0 μg/m3 (74) | 74.0 | |
Jan. 16, 2021, 5 p.m. | 43.9 ppb (42) | 22.3 ppb (22) | N/A | 22.0 ppb (21) | N/A | N/A | 6.0 ppb (6) | 0.71 ppb (8) | N/A | 15.0 μg/m3 (58) | 58.0 | |
Jan. 16, 2021, 4 p.m. | 91.5 ppb (91) | 67.4 ppb (66) | N/A | 24.0 ppb (23) | N/A | N/A | 1.0 ppb (1) | 1.24 ppb (14) | N/A | 26.0 μg/m3 (81) | 91.0 | |
Jan. 16, 2021, 3 p.m. | 85.1 ppb (85) | 66.6 ppb (65) | N/A | 19.0 ppb (18) | N/A | N/A | 0.0 ppb (0) | 1.22 ppb (14) | N/A | 22.0 μg/m3 (72) | 85.0 | |
Jan. 16, 2021, 2 p.m. | 69.2 ppb (68) | 52.1 ppb (50) | N/A | 17.0 ppb (17) | N/A | N/A | 0.0 ppb (0) | 1.08 ppb (13) | N/A | 21.0 μg/m3 (70) | 70.0 | |
Jan. 16, 2021, 1 p.m. | 70.0 ppb (69) | 52.6 ppb (50) | N/A | 17.0 ppb (17) | N/A | N/A | 0.0 ppb (0) | 1.12 ppb (13) | N/A | 23.0 μg/m3 (74) | 74.0 | |
Jan. 16, 2021, noon | 65.2 ppb (63) | 48.3 ppb (46) | N/A | 17.0 ppb (17) | N/A | N/A | 0.0 ppb (0) | 1.13 ppb (13) | N/A | 26.0 μg/m3 (81) | 81.0 | |
Jan. 16, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 μg/m3 (87) | 87.0 | |
Jan. 16, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 μg/m3 (85) | 85.0 | |
Jan. 16, 2021, 9 a.m. | 64.8 ppb (63) | 39.8 ppb (38) | N/A | 25.0 ppb (24) | N/A | N/A | 0.0 ppb (0) | 1.15 ppb (13) | N/A | 30.0 μg/m3 (89) | 89.0 | |
Jan. 16, 2021, 8 a.m. | 73.8 ppb (73) | 48.6 ppb (46) | N/A | 25.0 ppb (24) | N/A | N/A | 1.0 ppb (1) | 1.51 ppb (18) | N/A | 33.0 μg/m3 (95) | 95.0 | |
Jan. 16, 2021, 7 a.m. | 73.3 ppb (72) | 48.2 ppb (46) | N/A | 25.0 ppb (24) | N/A | N/A | 1.0 ppb (1) | 1.37 ppb (16) | N/A | 28.0 μg/m3 (85) | 85.0 | |
Jan. 16, 2021, 6 a.m. | 67.1 ppb (65) | 38.7 ppb (37) | N/A | 28.0 ppb (27) | N/A | N/A | 0.0 ppb (0) | 1.08 ppb (13) | N/A | 22.0 μg/m3 (72) | 72.0 | |
Jan. 16, 2021, 5 a.m. | 44.8 ppb (43) | 16.2 ppb (16) | N/A | 29.0 ppb (28) | N/A | N/A | 0.0 ppb (0) | 0.79 ppb (10) | N/A | 24.0 μg/m3 (77) | 77.0 | |
Jan. 16, 2021, 4 a.m. | 56.3 ppb (54) | 25.1 ppb (24) | N/A | 31.0 ppb (30) | N/A | N/A | 1.0 ppb (1) | 0.95 ppb (11) | N/A | 22.0 μg/m3 (72) | 72.0 | |
Jan. 16, 2021, 3 a.m. | 45.7 ppb (44) | 12.1 ppb (12) | N/A | 34.0 ppb (33) | N/A | N/A | 1.0 ppb (1) | 0.74 ppb (8) | N/A | 23.0 μg/m3 (74) | 74.0 | |
Jan. 16, 2021, 2 a.m. | 29.2 ppb (28) | 1.4 ppb (2) | N/A | 28.0 ppb (27) | N/A | N/A | 8.0 ppb (8) | 0.48 ppb (6) | N/A | 19.0 μg/m3 (66) | 66.0 | |
Jan. 16, 2021, 1 a.m. | 24.6 ppb (24) | 0.9 ppb (1) | N/A | 24.0 ppb (23) | N/A | N/A | 11.0 ppb (11) | 0.48 ppb (6) | N/A | 17.0 μg/m3 (62) | 62.0 | |
Jan. 16, 2021, midnight | 17.1 ppb (17) | 1.0 ppb (1) | N/A | 16.0 ppb (16) | N/A | N/A | 19.0 ppb (18) | 0.36 ppb (5) | N/A | 15.0 μg/m3 (58) | 58.0 | |
Jan. 15, 2021, 11 p.m. | 13.9 ppb (14) | 1.6 ppb (2) | N/A | 12.0 ppb (12) | N/A | N/A | 23.0 ppb (22) | 0.32 ppb (4) | N/A | 10.0 μg/m3 (42) | 42.0 | |
Jan. 15, 2021, 10 p.m. | 19.2 ppb (19) | 4.6 ppb (5) | N/A | 15.0 ppb (15) | N/A | N/A | 19.0 ppb (18) | 0.35 ppb (4) | N/A | 14.0 μg/m3 (55) | 55.0 | |
Jan. 15, 2021, 9 p.m. | 16.3 ppb (16) | 4.2 ppb (4) | N/A | 12.0 ppb (12) | N/A | N/A | 21.0 ppb (20) | 0.31 ppb (4) | N/A | 17.0 μg/m3 (62) | 62.0 | |
Jan. 15, 2021, 8 p.m. | 24.6 ppb (24) | 8.9 ppb (9) | N/A | 16.0 ppb (16) | N/A | N/A | 14.0 ppb (13) | 0.39 ppb (5) | N/A | 19.0 μg/m3 (66) | 66.0 | |
Jan. 15, 2021, 7 p.m. | 25.7 ppb (25) | 10.3 ppb (10) | N/A | 15.0 ppb (15) | N/A | N/A | 12.0 ppb (12) | 0.42 ppb (5) | N/A | 15.0 μg/m3 (58) | 58.0 | |
Jan. 15, 2021, 6 p.m. | 36.7 ppb (35) | 18.8 ppb (18) | N/A | 18.0 ppb (17) | N/A | N/A | 8.0 ppb (8) | 0.51 ppb (6) | N/A | 19.0 μg/m3 (66) | 66.0 | |
Jan. 15, 2021, 5 p.m. | 52.2 ppb (50) | 28.9 ppb (28) | N/A | 23.0 ppb (22) | N/A | N/A | 4.0 ppb (4) | 0.63 ppb (7) | N/A | 16.0 μg/m3 (60) | 60.0 | |
Jan. 15, 2021, 4 p.m. | 96.4 ppb (97) | 71.1 ppb (70) | N/A | 25.0 ppb (24) | N/A | N/A | 1.0 ppb (1) | 1.02 ppb (12) | N/A | 15.0 μg/m3 (58) | 97.0 | |
Jan. 15, 2021, 3 p.m. | 67.9 ppb (66) | 50.8 ppb (48) | N/A | 17.0 ppb (17) | N/A | N/A | 0.0 ppb (0) | 0.9 ppb (11) | N/A | 8.0 μg/m3 (34) | 66.0 | |
Jan. 15, 2021, 2 p.m. | 57.5 ppb (55) | 41.9 ppb (40) | N/A | 16.0 ppb (16) | N/A | N/A | 0.0 ppb (0) | 0.78 ppb (10) | N/A | 11.0 μg/m3 (46) | 55.0 | |
Jan. 15, 2021, 1 p.m. | 53.0 ppb (50) | 37.5 ppb (36) | N/A | 16.0 ppb (16) | N/A | N/A | 0.0 ppb (0) | 0.76 ppb (10) | N/A | 13.0 μg/m3 (53) | 53.0 | |
Jan. 15, 2021, noon | 53.0 ppb (50) | 37.5 ppb (36) | N/A | 16.0 ppb (16) | N/A | N/A | 0.0 ppb (0) | 0.77 ppb (10) | N/A | 14.0 μg/m3 (55) | 55.0 | |
Jan. 15, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 μg/m3 (62) | 62.0 | |
Jan. 15, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 μg/m3 (64) | 64.0 | |
Jan. 15, 2021, 9 a.m. | 54.7 ppb (52) | 36.0 ppb (34) | N/A | 19.0 ppb (18) | N/A | N/A | 0.0 ppb (0) | 0.89 ppb (11) | N/A | 10.0 μg/m3 (42) | 52.0 | |
Jan. 15, 2021, 8 a.m. | 51.2 ppb (49) | 30.9 ppb (30) | N/A | 20.0 ppb (19) | N/A | N/A | 0.0 ppb (0) | 0.86 ppb (11) | N/A | 10.0 μg/m3 (42) | 49.0 | |
Jan. 15, 2021, 7 a.m. | 54.1 ppb (52) | 33.0 ppb (32) | N/A | 21.0 ppb (20) | N/A | N/A | 0.0 ppb (0) | 0.88 ppb (11) | N/A | 16.0 μg/m3 (60) | 60.0 | |
Jan. 15, 2021, 6 a.m. | 53.8 ppb (51) | 31.7 ppb (30) | N/A | 22.0 ppb (21) | N/A | N/A | 0.0 ppb (0) | 0.88 ppb (11) | N/A | 10.0 μg/m3 (42) | 51.0 | |
Jan. 15, 2021, 5 a.m. | 36.1 ppb (35) | 13.1 ppb (13) | N/A | 23.0 ppb (22) | N/A | N/A | 1.0 ppb (1) | 0.58 ppb (7) | N/A | 9.0 μg/m3 (38) | 38.0 | |
Jan. 15, 2021, 4 a.m. | 23.5 ppb (23) | 2.5 ppb (3) | N/A | 21.0 ppb (20) | N/A | N/A | 3.0 ppb (3) | 0.4 ppb (5) | N/A | 8.0 μg/m3 (34) | 34.0 | |
Jan. 15, 2021, 3 a.m. | 18.9 ppb (18) | 0.4 ppb (1) | N/A | 19.0 ppb (18) | N/A | N/A | 8.0 ppb (8) | 0.34 ppb (4) | N/A | 7.0 μg/m3 (30) | 30.0 | |
Jan. 15, 2021, 2 a.m. | 19.9 ppb (19) | 0.0 ppb (0) | N/A | 20.0 ppb (19) | N/A | N/A | 10.0 ppb (10) | 0.32 ppb (4) | N/A | 8.0 μg/m3 (34) | 34.0 | |
Jan. 15, 2021, 1 a.m. | 19.6 ppb (19) | 0.3 ppb (1) | N/A | 19.0 ppb (18) | N/A | N/A | 13.0 ppb (13) | 0.38 ppb (5) | N/A | 7.0 μg/m3 (30) | 30.0 | |
Jan. 15, 2021, midnight | 20.2 ppb (20) | 1.9 ppb (2) | N/A | 18.0 ppb (17) | N/A | N/A | 17.0 ppb (16) | 0.31 ppb (4) | N/A | 5.0 μg/m3 (21) | 21.0 | |
Jan. 14, 2021, 11 p.m. | 9.5 ppb (9) | 1.0 ppb (1) | N/A | 9.0 ppb (9) | N/A | N/A | 24.0 ppb (23) | 0.26 ppb (4) | N/A | 4.0 μg/m3 (17) | 23.0 | |
Jan. 14, 2021, 10 p.m. | 9.5 ppb (9) | 1.7 ppb (2) | N/A | 8.0 ppb (8) | N/A | N/A | 25.0 ppb (24) | 0.22 ppb (3) | N/A | 8.0 μg/m3 (34) | 34.0 | |
Jan. 14, 2021, 9 p.m. | 12.6 ppb (12) | 2.8 ppb (3) | N/A | 10.0 ppb (10) | N/A | N/A | 22.0 ppb (21) | 0.24 ppb (3) | N/A | 9.0 μg/m3 (38) | 38.0 | |
Jan. 14, 2021, 8 p.m. | 13.0 ppb (13) | 3.3 ppb (4) | N/A | 10.0 ppb (10) | N/A | N/A | 20.0 ppb (19) | 0.26 ppb (4) | N/A | 8.0 μg/m3 (34) | 34.0 | |
Jan. 14, 2021, 7 p.m. | 15.5 ppb (15) | 4.4 ppb (5) | N/A | 11.0 ppb (11) | N/A | N/A | 18.0 ppb (17) | 0.3 ppb (4) | N/A | 9.0 μg/m3 (38) | 38.0 | |
Jan. 14, 2021, 6 p.m. | 41.6 ppb (40) | 19.5 ppb (19) | N/A | 22.0 ppb (21) | N/A | N/A | 8.0 ppb (8) | 0.58 ppb (7) | N/A | 16.0 μg/m3 (60) | 60.0 | |
Jan. 14, 2021, 5 p.m. | 67.0 ppb (65) | 40.8 ppb (39) | N/A | 26.0 ppb (25) | N/A | N/A | 5.0 ppb (5) | 0.79 ppb (10) | N/A | 13.0 μg/m3 (53) | 65.0 | |
Jan. 14, 2021, 4 p.m. | 115.4 ppb (104) | 92.6 ppb (93) | N/A | 23.0 ppb (22) | N/A | N/A | 0.0 ppb (0) | 1.3 ppb (15) | N/A | N/A | 104.0 | |
Jan. 14, 2021, 3 p.m. | 89.5 ppb (89) | 71.2 ppb (70) | N/A | 18.0 ppb (17) | N/A | N/A | 0.0 ppb (0) | 1.1 ppb (13) | N/A | 14.0 μg/m3 (55) | 89.0 | |
Jan. 14, 2021, 2 p.m. | 57.8 ppb (56) | 40.5 ppb (39) | N/A | 17.0 ppb (17) | N/A | N/A | 0.0 ppb (0) | 0.76 ppb (10) | N/A | 16.0 μg/m3 (60) | 60.0 | |
Jan. 14, 2021, 1 p.m. | 40.9 ppb (39) | 26.0 ppb (25) | N/A | 15.0 ppb (15) | N/A | N/A | 0.0 ppb (0) | 0.64 ppb (7) | N/A | 14.0 μg/m3 (55) | 55.0 | |
Jan. 14, 2021, noon | 31.5 ppb (30) | 15.3 ppb (15) | N/A | 16.0 ppb (16) | N/A | N/A | 0.0 ppb (0) | 0.51 ppb (6) | N/A | 13.0 μg/m3 (53) | 53.0 | |
Jan. 14, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 μg/m3 (60) | 60.0 | |
Jan. 14, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 μg/m3 (58) | 58.0 | |
Jan. 14, 2021, 9 a.m. | 38.2 ppb (37) | 16.9 ppb (16) | N/A | 21.0 ppb (20) | N/A | N/A | 1.0 ppb (1) | 0.56 ppb (7) | N/A | 18.0 μg/m3 (64) | 64.0 | |
Jan. 14, 2021, 8 a.m. | 39.2 ppb (37) | 17.4 ppb (17) | N/A | 22.0 ppb (21) | N/A | N/A | 1.0 ppb (1) | 0.69 ppb (8) | N/A | 17.0 μg/m3 (62) | 62.0 | |
Jan. 14, 2021, 7 a.m. | 52.2 ppb (50) | 28.0 ppb (27) | N/A | 24.0 ppb (23) | N/A | N/A | 0.0 ppb (0) | 0.74 ppb (8) | N/A | 13.0 μg/m3 (53) | 53.0 | |
Jan. 14, 2021, 6 a.m. | 51.3 ppb (49) | 23.9 ppb (23) | N/A | 27.0 ppb (26) | N/A | N/A | 0.0 ppb (0) | 0.58 ppb (7) | N/A | 14.0 μg/m3 (55) | 55.0 | |
Jan. 14, 2021, 5 a.m. | 39.5 ppb (38) | 11.6 ppb (11) | N/A | 28.0 ppb (27) | N/A | N/A | 0.0 ppb (0) | 0.59 ppb (7) | N/A | 14.0 μg/m3 (55) | 55.0 | |
Jan. 14, 2021, 4 a.m. | 36.9 ppb (35) | 7.3 ppb (7) | N/A | 30.0 ppb (29) | N/A | N/A | 1.0 ppb (1) | 0.57 ppb (7) | N/A | 16.0 μg/m3 (60) | 60.0 | |
Jan. 14, 2021, 3 a.m. | 30.4 ppb (29) | 2.1 ppb (2) | N/A | 28.0 ppb (27) | N/A | N/A | 5.0 ppb (5) | 0.55 ppb (7) | N/A | 21.0 μg/m3 (70) | 70.0 | |
Jan. 14, 2021, 2 a.m. | 20.5 ppb (20) | 0.8 ppb (1) | N/A | 20.0 ppb (19) | N/A | N/A | 14.0 ppb (13) | 0.42 ppb (5) | N/A | 26.0 μg/m3 (81) | 81.0 | |
Jan. 14, 2021, 1 a.m. | 10.2 ppb (10) | 0.1 ppb (1) | N/A | 10.0 ppb (10) | N/A | N/A | 23.0 ppb (22) | 0.31 ppb (4) | N/A | 10.0 μg/m3 (42) | 42.0 | |
Jan. 14, 2021, midnight | 8.3 ppb (8) | 0.0 ppb (0) | N/A | 8.0 ppb (8) | N/A | N/A | 26.0 ppb (25) | 0.26 ppb (4) | N/A | 8.0 μg/m3 (34) | 34.0 | |
Jan. 13, 2021, 11 p.m. | 6.0 ppb (6) | 0.4 ppb (1) | N/A | 6.0 ppb (6) | N/A | N/A | 28.0 ppb (26) | 0.22 ppb (3) | N/A | 5.0 μg/m3 (21) | 26.0 | |
Jan. 13, 2021, 10 p.m. | 10.1 ppb (10) | 1.4 ppb (2) | N/A | 9.0 ppb (9) | N/A | N/A | 26.0 ppb (25) | 0.25 ppb (3) | N/A | 17.0 μg/m3 (62) | 62.0 | |
Jan. 13, 2021, 9 p.m. | 11.7 ppb (12) | 2.2 ppb (3) | N/A | 10.0 ppb (10) | N/A | N/A | 25.0 ppb (24) | 0.25 ppb (3) | N/A | 8.0 μg/m3 (34) | 34.0 | |
Jan. 13, 2021, 8 p.m. | 14.5 ppb (14) | 3.3 ppb (4) | N/A | 11.0 ppb (11) | N/A | N/A | 24.0 ppb (23) | 0.3 ppb (4) | N/A | 13.0 μg/m3 (53) | 53.0 | |
Jan. 13, 2021, 7 p.m. | 26.6 ppb (26) | 8.7 ppb (9) | N/A | 18.0 ppb (17) | N/A | N/A | 17.0 ppb (16) | 0.43 ppb (5) | N/A | 15.0 μg/m3 (58) | 58.0 | |
Jan. 13, 2021, 6 p.m. | 41.4 ppb (40) | 18.8 ppb (18) | N/A | 23.0 ppb (22) | N/A | N/A | 9.0 ppb (9) | 0.61 ppb (7) | N/A | 32.0 μg/m3 (93) | 93.0 | |
Jan. 13, 2021, 5 p.m. | 49.6 ppb (47) | 27.9 ppb (27) | N/A | 22.0 ppb (21) | N/A | N/A | 4.0 ppb (4) | 0.7 ppb (8) | N/A | 10.0 μg/m3 (42) | 47.0 | |
Jan. 13, 2021, 4 p.m. | 102.9 ppb (102) | 77.1 ppb (76) | N/A | 26.0 ppb (25) | N/A | N/A | 0.0 ppb (0) | 1.09 ppb (13) | N/A | 17.0 μg/m3 (62) | 102.0 | |
Jan. 13, 2021, 3 p.m. | 87.4 ppb (87) | 67.3 ppb (66) | N/A | 20.0 ppb (19) | N/A | N/A | 0.0 ppb (0) | 1.17 ppb (14) | N/A | 13.0 μg/m3 (53) | 87.0 | |
Jan. 13, 2021, 2 p.m. | 66.6 ppb (65) | 47.2 ppb (45) | N/A | 19.0 ppb (18) | N/A | N/A | 0.0 ppb (0) | 0.84 ppb (10) | N/A | 12.0 μg/m3 (50) | 65.0 | |
Jan. 13, 2021, 1 p.m. | 46.8 ppb (45) | 27.4 ppb (26) | N/A | 19.0 ppb (18) | N/A | N/A | 0.0 ppb (0) | 0.66 ppb (8) | N/A | 13.0 μg/m3 (53) | 53.0 | |
Jan. 13, 2021, noon | 42.5 ppb (41) | 24.7 ppb (24) | N/A | 18.0 ppb (17) | N/A | N/A | 0.0 ppb (0) | 0.7 ppb (8) | N/A | 16.0 μg/m3 (60) | 60.0 | |
Jan. 13, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 μg/m3 (66) | 66.0 | |
Jan. 13, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 μg/m3 (72) | 72.0 | |
Jan. 13, 2021, 9 a.m. | 64.5 ppb (63) | 39.7 ppb (38) | N/A | 25.0 ppb (24) | N/A | N/A | 0.0 ppb (0) | 0.93 ppb (11) | N/A | 18.0 μg/m3 (64) | 64.0 | |
Jan. 13, 2021, 8 a.m. | 63.7 ppb (62) | 36.6 ppb (35) | N/A | 27.0 ppb (26) | N/A | N/A | 0.0 ppb (0) | 0.92 ppb (11) | N/A | 22.0 μg/m3 (72) | 72.0 | |
Jan. 13, 2021, 7 a.m. | 52.3 ppb (50) | 25.0 ppb (24) | N/A | 27.0 ppb (26) | N/A | N/A | 0.0 ppb (0) | 0.83 ppb (10) | N/A | 21.0 μg/m3 (70) | 70.0 | |
Jan. 13, 2021, 6 a.m. | 46.2 ppb (44) | 16.8 ppb (16) | N/A | 29.0 ppb (28) | N/A | N/A | 0.0 ppb (0) | 0.73 ppb (8) | N/A | 18.0 μg/m3 (64) | 64.0 | |
Jan. 13, 2021, 5 a.m. | 33.7 ppb (32) | 4.7 ppb (5) | N/A | 29.0 ppb (28) | N/A | N/A | 1.0 ppb (1) | 0.55 ppb (7) | N/A | 18.0 μg/m3 (64) | 64.0 | |
Jan. 13, 2021, 4 a.m. | 22.2 ppb (21) | 0.7 ppb (1) | N/A | 22.0 ppb (21) | N/A | N/A | 10.0 ppb (10) | 0.4 ppb (5) | N/A | 17.0 μg/m3 (62) | 62.0 | |
Jan. 13, 2021, 3 a.m. | 18.0 ppb (17) | -0.4 ppb (0) | N/A | 19.0 ppb (18) | N/A | N/A | 13.0 ppb (13) | 0.41 ppb (5) | N/A | 19.0 μg/m3 (66) | 66.0 | |
Jan. 13, 2021, 2 a.m. | 15.8 ppb (15) | -0.5 ppb (0) | N/A | 16.0 ppb (16) | N/A | N/A | 16.0 ppb (15) | 0.38 ppb (5) | N/A | 17.0 μg/m3 (62) | 62.0 | |
Jan. 13, 2021, 1 a.m. | 22.5 ppb (22) | 0.3 ppb (1) | N/A | 22.0 ppb (21) | N/A | N/A | 12.0 ppb (12) | 0.45 ppb (6) | N/A | 19.0 μg/m3 (66) | 66.0 | |
Jan. 13, 2021, midnight | 23.4 ppb (23) | 1.9 ppb (2) | N/A | 22.0 ppb (21) | N/A | N/A | 16.0 ppb (15) | 0.42 ppb (5) | N/A | 13.0 μg/m3 (53) | 53.0 | |
Jan. 12, 2021, 11 p.m. | 19.1 ppb (19) | 2.8 ppb (3) | N/A | 16.0 ppb (16) | N/A | N/A | 18.0 ppb (17) | 0.39 ppb (5) | N/A | 16.0 μg/m3 (60) | 60.0 | |
Jan. 12, 2021, 10 p.m. | 29.4 ppb (28) | 9.0 ppb (9) | N/A | 20.0 ppb (19) | N/A | N/A | 12.0 ppb (12) | 0.48 ppb (6) | N/A | 19.0 μg/m3 (66) | 66.0 | |
Jan. 12, 2021, 9 p.m. | 22.2 ppb (21) | 7.4 ppb (7) | N/A | 15.0 ppb (15) | N/A | N/A | 13.0 ppb (13) | 0.39 ppb (5) | N/A | 13.0 μg/m3 (53) | 53.0 | |
Jan. 12, 2021, 8 p.m. | 17.0 ppb (17) | 4.9 ppb (5) | N/A | 12.0 ppb (12) | N/A | N/A | 12.0 ppb (12) | 0.35 ppb (4) | N/A | 14.0 μg/m3 (55) | 55.0 | |
Jan. 12, 2021, 7 p.m. | 34.6 ppb (33) | 15.3 ppb (15) | N/A | 19.0 ppb (18) | N/A | N/A | 7.0 ppb (7) | 0.53 ppb (6) | N/A | 17.0 μg/m3 (62) | 62.0 | |
Jan. 12, 2021, 6 p.m. | 44.0 ppb (42) | 21.0 ppb (20) | N/A | 23.0 ppb (22) | N/A | N/A | 4.0 ppb (4) | 0.62 ppb (7) | N/A | 26.0 μg/m3 (81) | 81.0 | |
Jan. 12, 2021, 5 p.m. | 49.9 ppb (48) | 28.3 ppb (27) | N/A | 22.0 ppb (21) | N/A | N/A | 2.0 ppb (2) | 0.72 ppb (8) | N/A | 18.0 μg/m3 (64) | 64.0 | |
Jan. 12, 2021, 4 p.m. | 53.5 ppb (51) | 32.2 ppb (31) | N/A | 21.0 ppb (20) | N/A | N/A | 0.0 ppb (0) | 0.74 ppb (8) | N/A | 18.0 μg/m3 (64) | 64.0 | |
Jan. 12, 2021, 3 p.m. | 50.2 ppb (48) | 29.0 ppb (28) | N/A | 21.0 ppb (20) | N/A | N/A | 0.0 ppb (0) | 0.71 ppb (8) | N/A | 16.0 μg/m3 (60) | 60.0 | |
Jan. 12, 2021, 2 p.m. | 69.0 ppb (67) | 47.3 ppb (45) | N/A | 22.0 ppb (21) | N/A | N/A | 0.0 ppb (0) | 0.97 ppb (12) | N/A | 18.0 μg/m3 (64) | 67.0 | |
Jan. 12, 2021, 1 p.m. | 58.3 ppb (56) | 37.7 ppb (36) | N/A | 21.0 ppb (20) | N/A | N/A | 0.0 ppb (0) | 0.9 ppb (11) | N/A | 18.0 μg/m3 (64) | 64.0 | |
Jan. 12, 2021, noon | 54.2 ppb (52) | 33.4 ppb (32) | N/A | 21.0 ppb (20) | N/A | N/A | 0.0 ppb (0) | 0.8 ppb (10) | N/A | 31.0 μg/m3 (91) | 91.0 | |
Jan. 12, 2021, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 μg/m3 (62) | 62.0 | |
Jan. 12, 2021, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 μg/m3 (64) | 64.0 | |
Jan. 12, 2021, 9 a.m. | 52.0 ppb (50) | 29.0 ppb (28) | N/A | 23.0 ppb (22) | N/A | N/A | 0.0 ppb (0) | 0.82 ppb (10) | N/A | 27.0 μg/m3 (83) | 83.0 | |
Jan. 12, 2021, 8 a.m. | 49.5 ppb (47) | 23.5 ppb (23) | N/A | 26.0 ppb (25) | N/A | N/A | 0.0 ppb (0) | 0.83 ppb (10) | N/A | 18.0 μg/m3 (64) | 64.0 | |
Jan. 12, 2021, 7 a.m. | 62.1 ppb (60) | 34.2 ppb (33) | N/A | 28.0 ppb (27) | N/A | N/A | 0.0 ppb (0) | 0.9 ppb (11) | N/A | 21.0 μg/m3 (70) | 70.0 | |
Jan. 12, 2021, 6 a.m. | 52.6 ppb (50) | 23.5 ppb (23) | N/A | 29.0 ppb (28) | N/A | N/A | 0.0 ppb (0) | 0.83 ppb (10) | N/A | 18.0 μg/m3 (64) | 64.0 | |
Jan. 12, 2021, 5 a.m. | 52.5 ppb (50) | 23.2 ppb (22) | N/A | 29.0 ppb (28) | N/A | N/A | 0.0 ppb (0) | 0.73 ppb (8) | N/A | 20.0 μg/m3 (68) | 68.0 | |
Jan. 12, 2021, 4 a.m. | 55.0 ppb (53) | 22.9 ppb (22) | N/A | 32.0 ppb (31) | N/A | N/A | 0.0 ppb (0) | 0.83 ppb (10) | N/A | 26.0 μg/m3 (81) | 81.0 | |
Jan. 12, 2021, 3 a.m. | 44.5 ppb (42) | 12.4 ppb (12) | N/A | 32.0 ppb (31) | N/A | N/A | 0.0 ppb (0) | 0.73 ppb (8) | N/A | 18.0 μg/m3 (64) | 64.0 | |
Jan. 12, 2021, 2 a.m. | 30.6 ppb (29) | 3.3 ppb (4) | N/A | 27.0 ppb (26) | N/A | N/A | 4.0 ppb (4) | 0.52 ppb (6) | N/A | 18.0 μg/m3 (64) | 64.0 | |
Jan. 12, 2021, 1 a.m. | 20.0 ppb (19) | 0.2 ppb (1) | N/A | 20.0 ppb (19) | N/A | N/A | 13.0 ppb (13) | 0.41 ppb (5) | N/A | 17.0 μg/m3 (62) | 62.0 | |
Jan. 12, 2021, midnight | 8.9 ppb (9) | -0.1 ppb (0) | N/A | 9.0 ppb (9) | N/A | N/A | 24.0 ppb (23) | 0.29 ppb (4) | N/A | 10.0 μg/m3 (42) | 42.0 | |
Jan. 11, 2021, 11 p.m. | 8.5 ppb (9) | 0.6 ppb (1) | N/A | 8.0 ppb (8) | N/A | N/A | 26.0 ppb (25) | 0.27 ppb (4) | N/A | 11.0 μg/m3 (46) | 46.0 | |
Jan. 11, 2021, 10 p.m. | 15.8 ppb (15) | 3.4 ppb (4) | N/A | 12.0 ppb (12) | N/A | N/A | 22.0 ppb (21) | 0.31 ppb (4) | N/A | 12.0 μg/m3 (50) | 50.0 |