Providence (Downtown) RI, US: 41.829495, -71.417457
Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Jan. 16, 2021, midnight | 24.3 ppb (23) | 7.9 ppb (8) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | 0.36 ppb (5) | N/A | 7.0 μg/m3 (30) | 30.0 | |
Jan. 15, 2021, 11 p.m. | 25.4 ppb (24) | 9.5 ppb (9) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | 0.43 ppb (5) | N/A | 8.0 μg/m3 (34) | 34.0 | |
Jan. 15, 2021, 10 p.m. | 22.3 ppb (22) | 10.0 ppb (10) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | 0.39 ppb (5) | N/A | 8.0 μg/m3 (34) | 34.0 | |
Jan. 15, 2021, 9 p.m. | 26.2 ppb (25) | 13.8 ppb (14) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | 0.4 ppb (5) | N/A | 6.0 μg/m3 (25) | 25.0 | |
Jan. 15, 2021, 8 p.m. | 28.6 ppb (27) | 18.1 ppb (18) | N/A | 10.0 ppb (10) | N/A | N/A | N/A | 0.41 ppb (5) | N/A | 11.0 μg/m3 (46) | 46.0 | |
Jan. 15, 2021, 7 p.m. | 27.0 ppb (26) | 13.8 ppb (14) | N/A | 13.0 ppb (13) | N/A | N/A | N/A | 0.38 ppb (5) | N/A | 12.0 μg/m3 (50) | 50.0 | |
Jan. 15, 2021, 6 p.m. | 25.2 ppb (24) | 13.8 ppb (14) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | 0.42 ppb (5) | N/A | 9.0 μg/m3 (38) | 38.0 | |
Jan. 15, 2021, 5 p.m. | 24.7 ppb (24) | 11.6 ppb (11) | N/A | 13.0 ppb (13) | N/A | N/A | N/A | 0.35 ppb (4) | N/A | 9.0 μg/m3 (38) | 38.0 | |
Jan. 15, 2021, 4 p.m. | 25.0 ppb (24) | 11.0 ppb (11) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | 0.35 ppb (4) | N/A | 16.0 μg/m3 (60) | 60.0 | |
Jan. 15, 2021, 3 p.m. | 28.1 ppb (27) | 18.2 ppb (18) | N/A | 10.0 ppb (10) | N/A | N/A | N/A | 0.37 ppb (5) | N/A | 27.0 μg/m3 (83) | 83.0 | |
Jan. 15, 2021, 2 p.m. | 34.9 ppb (33) | 19.0 ppb (18) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | 0.44 ppb (5) | N/A | 31.0 μg/m3 (91) | 91.0 | |
Jan. 15, 2021, 1 p.m. | 77.8 ppb (77) | 56.0 ppb (54) | N/A | 22.0 ppb (21) | N/A | N/A | N/A | 0.72 ppb (8) | N/A | 26.0 μg/m3 (81) | 81.0 | |
Jan. 15, 2021, noon | 49.6 ppb (47) | 31.0 ppb (30) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | 0.57 ppb (7) | N/A | 25.0 μg/m3 (79) | 79.0 | |
Jan. 15, 2021, 11 a.m. | 52.3 ppb (50) | 32.5 ppb (31) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | 0.53 ppb (6) | N/A | 23.0 μg/m3 (74) | 74.0 | |
Jan. 15, 2021, 10 a.m. | 49.1 ppb (47) | 29.5 ppb (28) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | 0.52 ppb (6) | N/A | 24.0 μg/m3 (77) | 77.0 | |
Jan. 15, 2021, 9 a.m. | 41.8 ppb (40) | 23.2 ppb (22) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | 0.45 ppb (6) | N/A | 22.0 μg/m3 (72) | 72.0 | |
Jan. 15, 2021, 8 a.m. | 45.1 ppb (43) | 26.4 ppb (25) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | 0.42 ppb (5) | N/A | 19.0 μg/m3 (66) | 66.0 | |
Jan. 15, 2021, 7 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, 6 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. 15, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.0 μg/m3 (53) | 53.0 | |
Jan. 15, 2021, 4 a.m. | 42.8 ppb (41) | 20.4 ppb (20) | N/A | 22.0 ppb (21) | N/A | N/A | N/A | 0.42 ppb (5) | N/A | 23.0 μg/m3 (74) | 74.0 | |
Jan. 15, 2021, 3 a.m. | 42.6 ppb (41) | 18.8 ppb (18) | N/A | 24.0 ppb (23) | N/A | N/A | N/A | 0.64 ppb (7) | N/A | 20.0 μg/m3 (68) | 68.0 | |
Jan. 15, 2021, 2 a.m. | 40.8 ppb (39) | 20.1 ppb (19) | N/A | 21.0 ppb (20) | N/A | N/A | N/A | 0.57 ppb (7) | N/A | 28.0 μg/m3 (85) | 85.0 | |
Jan. 15, 2021, 1 a.m. | 45.2 ppb (43) | 24.1 ppb (23) | N/A | 21.0 ppb (20) | N/A | N/A | N/A | 0.7 ppb (8) | N/A | 30.0 μg/m3 (89) | 89.0 | |
Jan. 15, 2021, midnight | 40.2 ppb (38) | 18.3 ppb (18) | N/A | 22.0 ppb (21) | N/A | N/A | N/A | 0.59 ppb (7) | N/A | 24.0 μg/m3 (77) | 77.0 | |
Jan. 14, 2021, 11 p.m. | 46.3 ppb (44) | 21.7 ppb (21) | N/A | 25.0 ppb (24) | N/A | N/A | N/A | 0.64 ppb (7) | N/A | 20.0 μg/m3 (68) | 68.0 | |
Jan. 14, 2021, 10 p.m. | 37.5 ppb (36) | 12.5 ppb (12) | N/A | 25.0 ppb (24) | N/A | N/A | N/A | 0.55 ppb (7) | N/A | 22.0 μg/m3 (72) | 72.0 | |
Jan. 14, 2021, 9 p.m. | 37.1 ppb (35) | 12.0 ppb (12) | N/A | 25.0 ppb (24) | N/A | N/A | N/A | 0.53 ppb (6) | N/A | 24.0 μg/m3 (77) | 77.0 | |
Jan. 14, 2021, 8 p.m. | 48.9 ppb (47) | 20.6 ppb (20) | N/A | 28.0 ppb (27) | N/A | N/A | N/A | 0.57 ppb (7) | N/A | 24.0 μg/m3 (77) | 77.0 | |
Jan. 14, 2021, 7 p.m. | 64.4 ppb (63) | 32.4 ppb (31) | N/A | 32.0 ppb (31) | N/A | N/A | N/A | 0.79 ppb (10) | N/A | 30.0 μg/m3 (89) | 89.0 | |
Jan. 14, 2021, 6 p.m. | 65.8 ppb (64) | 40.0 ppb (38) | N/A | 26.0 ppb (25) | N/A | N/A | N/A | 0.74 ppb (8) | N/A | 25.0 μg/m3 (79) | 79.0 | |
Jan. 14, 2021, 5 p.m. | 49.6 ppb (47) | 30.7 ppb (29) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | 0.55 ppb (7) | N/A | 22.0 μg/m3 (72) | 72.0 | |
Jan. 14, 2021, 4 p.m. | 60.1 ppb (58) | 35.1 ppb (34) | N/A | 25.0 ppb (24) | N/A | N/A | N/A | 0.59 ppb (7) | N/A | 27.0 μg/m3 (83) | 83.0 | |
Jan. 14, 2021, 3 p.m. | 92.2 ppb (92) | 63.3 ppb (61) | N/A | 29.0 ppb (28) | N/A | N/A | N/A | 0.83 ppb (10) | N/A | 27.0 μg/m3 (83) | 83.0 | |
Jan. 14, 2021, 2 p.m. | 142.9 ppb (109) | 118.1 ppb (105) | N/A | 25.0 ppb (24) | N/A | N/A | N/A | 1.15 ppb (13) | N/A | 31.0 μg/m3 (91) | 105.0 | |
Jan. 14, 2021, 1 p.m. | 184.9 ppb (117) | 151.0 ppb (111) | N/A | 34.0 ppb (33) | N/A | N/A | N/A | 1.48 ppb (18) | N/A | 34.0 μg/m3 (98) | 111.0 | |
Jan. 14, 2021, noon | 178.9 ppb (116) | 141.9 ppb (109) | N/A | 37.0 ppb (35) | N/A | N/A | N/A | 1.41 ppb (16) | N/A | 30.0 μg/m3 (89) | 109.0 | |
Jan. 14, 2021, 11 a.m. | 149.1 ppb (111) | 119.6 ppb (105) | N/A | 30.0 ppb (29) | N/A | N/A | N/A | 1.18 ppb (14) | N/A | 27.0 μg/m3 (83) | 105.0 | |
Jan. 14, 2021, 10 a.m. | 106.9 ppb (103) | 78.2 ppb (77) | N/A | 29.0 ppb (28) | N/A | N/A | N/A | 0.86 ppb (11) | N/A | 26.0 μg/m3 (81) | 81.0 | |
Jan. 14, 2021, 9 a.m. | 84.5 ppb (84) | 57.5 ppb (55) | N/A | 27.0 ppb (26) | N/A | N/A | N/A | 0.54 ppb (6) | N/A | 24.0 μg/m3 (77) | 77.0 | |
Jan. 14, 2021, 8 a.m. | 48.4 ppb (46) | 26.1 ppb (25) | N/A | 22.0 ppb (21) | N/A | N/A | N/A | 0.46 ppb (6) | N/A | 20.0 μg/m3 (68) | 68.0 | |
Jan. 14, 2021, 7 a.m. | 40.6 ppb (39) | 17.9 ppb (17) | N/A | 23.0 ppb (22) | N/A | N/A | N/A | 0.4 ppb (5) | N/A | 19.0 μg/m3 (66) | 66.0 | |
Jan. 14, 2021, 6 a.m. | 28.2 ppb (27) | 10.6 ppb (10) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | 0.47 ppb (6) | N/A | 18.0 μg/m3 (64) | 64.0 | |
Jan. 14, 2021, 5 a.m. | 39.3 ppb (38) | 15.7 ppb (15) | N/A | 24.0 ppb (23) | N/A | N/A | N/A | 0.5 ppb (6) | N/A | 18.0 μg/m3 (64) | 64.0 | |
Jan. 14, 2021, 4 a.m. | 49.3 ppb (47) | 24.7 ppb (24) | N/A | 25.0 ppb (24) | N/A | N/A | N/A | 0.4 ppb (5) | N/A | 17.0 μg/m3 (62) | 62.0 | |
Jan. 14, 2021, 3 a.m. | 47.0 ppb (45) | 25.4 ppb (24) | N/A | 22.0 ppb (21) | N/A | N/A | N/A | 0.59 ppb (7) | N/A | 16.0 μg/m3 (60) | 60.0 | |
Jan. 14, 2021, 2 a.m. | 46.3 ppb (44) | 24.5 ppb (24) | N/A | 22.0 ppb (21) | N/A | N/A | N/A | 0.62 ppb (7) | N/A | 13.0 μg/m3 (53) | 53.0 | |
Jan. 14, 2021, 1 a.m. | 49.2 ppb (47) | 27.0 ppb (26) | N/A | 22.0 ppb (21) | N/A | N/A | N/A | 0.69 ppb (8) | N/A | 14.0 μg/m3 (55) | 55.0 | |
Jan. 14, 2021, midnight | 47.0 ppb (45) | 26.7 ppb (26) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | 0.65 ppb (8) | N/A | 17.0 μg/m3 (62) | 62.0 | |
Jan. 13, 2021, 11 p.m. | 43.1 ppb (41) | 22.7 ppb (22) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | 0.59 ppb (7) | N/A | 12.0 μg/m3 (50) | 50.0 | |
Jan. 13, 2021, 10 p.m. | 44.3 ppb (42) | 28.3 ppb (27) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | 0.62 ppb (7) | N/A | 6.0 μg/m3 (25) | 27.0 | |
Jan. 13, 2021, 9 p.m. | 47.3 ppb (45) | 28.0 ppb (27) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | 0.59 ppb (7) | N/A | 8.0 μg/m3 (34) | 34.0 | |
Jan. 13, 2021, 8 p.m. | 52.3 ppb (50) | 31.7 ppb (30) | N/A | 21.0 ppb (20) | N/A | N/A | N/A | 0.58 ppb (7) | N/A | 9.0 μg/m3 (38) | 38.0 | |
Jan. 13, 2021, 7 p.m. | 47.8 ppb (46) | 33.1 ppb (32) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | 0.57 ppb (7) | N/A | 11.0 μg/m3 (46) | 46.0 | |
Jan. 13, 2021, 6 p.m. | 57.2 ppb (55) | 38.1 ppb (36) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | 0.53 ppb (6) | N/A | 11.0 μg/m3 (46) | 46.0 | |
Jan. 13, 2021, 5 p.m. | 52.5 ppb (50) | 37.1 ppb (35) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | 0.53 ppb (6) | N/A | 13.0 μg/m3 (53) | 53.0 | |
Jan. 13, 2021, 4 p.m. | 55.4 ppb (53) | 44.0 ppb (42) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | 0.53 ppb (6) | N/A | 10.0 μg/m3 (42) | 42.0 | |
Jan. 13, 2021, 3 p.m. | 87.2 ppb (87) | 71.1 ppb (70) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | 0.7 ppb (8) | N/A | 14.0 μg/m3 (55) | 70.0 | |
Jan. 13, 2021, 2 p.m. | 81.9 ppb (81) | 59.9 ppb (58) | N/A | 22.0 ppb (21) | N/A | N/A | N/A | 0.73 ppb (8) | N/A | 16.0 μg/m3 (60) | 60.0 | |
Jan. 13, 2021, 1 p.m. | 93.6 ppb (94) | 69.1 ppb (68) | N/A | 25.0 ppb (24) | N/A | N/A | N/A | 0.78 ppb (10) | N/A | 17.0 μg/m3 (62) | 68.0 | |
Jan. 13, 2021, noon | 103.4 ppb (102) | 77.2 ppb (76) | N/A | 26.0 ppb (25) | N/A | N/A | N/A | 0.91 ppb (11) | N/A | 12.0 μg/m3 (50) | 76.0 | |
Jan. 13, 2021, 11 a.m. | 87.3 ppb (87) | 62.0 ppb (60) | N/A | 25.0 ppb (24) | N/A | N/A | N/A | 0.74 ppb (8) | N/A | 11.0 μg/m3 (46) | 60.0 | |
Jan. 13, 2021, 10 a.m. | 70.6 ppb (69) | 47.9 ppb (46) | N/A | 23.0 ppb (22) | N/A | N/A | N/A | 0.55 ppb (7) | N/A | 11.0 μg/m3 (46) | 46.0 | |
Jan. 13, 2021, 9 a.m. | 52.9 ppb (50) | 32.9 ppb (32) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | 0.46 ppb (6) | N/A | 10.0 μg/m3 (42) | 42.0 | |
Jan. 13, 2021, 8 a.m. | 39.3 ppb (38) | 25.2 ppb (24) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | 0.36 ppb (5) | N/A | 12.0 μg/m3 (50) | 50.0 | |
Jan. 13, 2021, 7 a.m. | 30.8 ppb (30) | 14.8 ppb (14) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | 0.32 ppb (4) | N/A | 15.0 μg/m3 (58) | 58.0 | |
Jan. 13, 2021, 6 a.m. | 28.4 ppb (27) | 13.2 ppb (13) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | 0.33 ppb (4) | N/A | 11.0 μg/m3 (46) | 46.0 | |
Jan. 13, 2021, 5 a.m. | 33.3 ppb (32) | 15.4 ppb (15) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | 0.47 ppb (6) | N/A | 15.0 μg/m3 (58) | 58.0 | |
Jan. 13, 2021, 4 a.m. | 32.4 ppb (31) | 16.2 ppb (16) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | 0.41 ppb (5) | N/A | 14.0 μg/m3 (55) | 55.0 | |
Jan. 13, 2021, 3 a.m. | 42.9 ppb (41) | 29.2 ppb (28) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | 0.6 ppb (7) | N/A | 13.0 μg/m3 (53) | 53.0 | |
Jan. 13, 2021, 2 a.m. | 45.5 ppb (43) | 28.4 ppb (27) | N/A | 17.0 ppb (17) | N/A | N/A | N/A | 0.68 ppb (8) | N/A | 12.0 μg/m3 (50) | 50.0 | |
Jan. 13, 2021, 1 a.m. | 47.7 ppb (45) | 29.7 ppb (29) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | 0.71 ppb (8) | N/A | 11.0 μg/m3 (46) | 46.0 | |
Jan. 13, 2021, midnight | 58.7 ppb (57) | 36.0 ppb (34) | N/A | 23.0 ppb (22) | N/A | N/A | N/A | 0.82 ppb (10) | N/A | 9.0 μg/m3 (38) | 38.0 | |
Jan. 12, 2021, 11 p.m. | 66.6 ppb (65) | 39.8 ppb (38) | N/A | 27.0 ppb (26) | N/A | N/A | N/A | 0.92 ppb (11) | N/A | 9.0 μg/m3 (38) | 38.0 | |
Jan. 12, 2021, 10 p.m. | 88.2 ppb (88) | 65.6 ppb (64) | N/A | 23.0 ppb (22) | N/A | N/A | N/A | 1.02 ppb (12) | N/A | 10.0 μg/m3 (42) | 64.0 | |
Jan. 12, 2021, 9 p.m. | 83.0 ppb (82) | 58.2 ppb (56) | N/A | 25.0 ppb (24) | N/A | N/A | N/A | 0.93 ppb (11) | N/A | 8.0 μg/m3 (34) | 56.0 | |
Jan. 12, 2021, 8 p.m. | 66.6 ppb (65) | 50.2 ppb (48) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | 0.67 ppb (8) | N/A | 7.0 μg/m3 (30) | 48.0 | |
Jan. 12, 2021, 7 p.m. | 61.6 ppb (60) | 41.3 ppb (39) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | 0.62 ppb (7) | N/A | 8.0 μg/m3 (34) | 39.0 | |
Jan. 12, 2021, 6 p.m. | 56.2 ppb (54) | 41.2 ppb (39) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | 0.59 ppb (7) | N/A | 10.0 μg/m3 (42) | 42.0 | |
Jan. 12, 2021, 5 p.m. | 57.8 ppb (56) | 44.2 ppb (42) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | 0.59 ppb (7) | N/A | 15.0 μg/m3 (58) | 58.0 | |
Jan. 12, 2021, 4 p.m. | 62.2 ppb (60) | 47.4 ppb (45) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | 0.57 ppb (7) | N/A | 17.0 μg/m3 (62) | 62.0 | |
Jan. 12, 2021, 3 p.m. | 79.3 ppb (78) | 58.3 ppb (56) | N/A | 21.0 ppb (20) | N/A | N/A | N/A | 0.77 ppb (10) | N/A | 16.0 μg/m3 (60) | 60.0 | |
Jan. 12, 2021, 2 p.m. | 92.1 ppb (92) | 69.9 ppb (68) | N/A | 22.0 ppb (21) | N/A | N/A | N/A | 0.73 ppb (8) | N/A | 16.0 μg/m3 (60) | 68.0 | |
Jan. 12, 2021, 1 p.m. | 103.0 ppb (102) | 76.0 ppb (75) | N/A | 27.0 ppb (26) | N/A | N/A | N/A | 0.78 ppb (10) | N/A | 20.0 μg/m3 (68) | 75.0 | |
Jan. 12, 2021, noon | 105.5 ppb (102) | 77.8 ppb (77) | N/A | 28.0 ppb (27) | N/A | N/A | N/A | 0.83 ppb (10) | N/A | 23.0 μg/m3 (74) | 77.0 | |
Jan. 12, 2021, 11 a.m. | 120.9 ppb (105) | 94.2 ppb (94) | N/A | 27.0 ppb (26) | N/A | N/A | N/A | 0.92 ppb (11) | N/A | 18.0 μg/m3 (64) | 94.0 | |
Jan. 12, 2021, 10 a.m. | 140.5 ppb (109) | 106.1 ppb (102) | N/A | 34.0 ppb (33) | N/A | N/A | N/A | 0.95 ppb (11) | N/A | 19.0 μg/m3 (66) | 102.0 | |
Jan. 12, 2021, 9 a.m. | 98.7 ppb (99) | 66.2 ppb (64) | N/A | 33.0 ppb (32) | N/A | N/A | N/A | 0.68 ppb (8) | N/A | 15.0 μg/m3 (58) | 64.0 | |
Jan. 12, 2021, 8 a.m. | 83.8 ppb (83) | 49.9 ppb (48) | N/A | 34.0 ppb (33) | N/A | N/A | N/A | 0.52 ppb (6) | N/A | 13.0 μg/m3 (53) | 53.0 | |
Jan. 12, 2021, 7 a.m. | 62.7 ppb (61) | 32.6 ppb (31) | N/A | 30.0 ppb (29) | N/A | N/A | N/A | 0.49 ppb (6) | N/A | 15.0 μg/m3 (58) | 58.0 | |
Jan. 12, 2021, 6 a.m. | 51.1 ppb (49) | 24.5 ppb (24) | N/A | 27.0 ppb (26) | N/A | N/A | N/A | 0.56 ppb (7) | N/A | 13.0 μg/m3 (53) | 53.0 | |
Jan. 12, 2021, 5 a.m. | 71.3 ppb (70) | 43.3 ppb (41) | N/A | 28.0 ppb (27) | N/A | N/A | N/A | 0.63 ppb (7) | N/A | 13.0 μg/m3 (53) | 53.0 | |
Jan. 12, 2021, 4 a.m. | 68.7 ppb (67) | 39.6 ppb (38) | N/A | 29.0 ppb (28) | N/A | N/A | N/A | 0.62 ppb (7) | N/A | 12.0 μg/m3 (50) | 50.0 | |
Jan. 12, 2021, 3 a.m. | 58.3 ppb (56) | 31.6 ppb (30) | N/A | 27.0 ppb (26) | N/A | N/A | N/A | 0.79 ppb (10) | N/A | 13.0 μg/m3 (53) | 53.0 | |
Jan. 12, 2021, 2 a.m. | 42.9 ppb (41) | 20.3 ppb (20) | N/A | 23.0 ppb (22) | N/A | N/A | N/A | 0.59 ppb (7) | N/A | 12.0 μg/m3 (50) | 50.0 | |
Jan. 12, 2021, 1 a.m. | 52.6 ppb (50) | 30.3 ppb (29) | N/A | 22.0 ppb (21) | N/A | N/A | N/A | 0.64 ppb (7) | N/A | 14.0 μg/m3 (55) | 55.0 | |
Jan. 12, 2021, midnight | 59.7 ppb (58) | 34.2 ppb (33) | N/A | 26.0 ppb (25) | N/A | N/A | N/A | 0.77 ppb (10) | N/A | 11.0 μg/m3 (46) | 46.0 | |
Jan. 11, 2021, 11 p.m. | 61.5 ppb (59) | 36.2 ppb (35) | N/A | 25.0 ppb (24) | N/A | N/A | N/A | 0.73 ppb (8) | N/A | 8.0 μg/m3 (34) | 35.0 | |
Jan. 11, 2021, 10 p.m. | 66.7 ppb (65) | 41.5 ppb (40) | N/A | 25.0 ppb (24) | N/A | N/A | N/A | 0.81 ppb (10) | N/A | 8.0 μg/m3 (34) | 40.0 | |
Jan. 11, 2021, 9 p.m. | 64.9 ppb (63) | 37.0 ppb (35) | N/A | 28.0 ppb (27) | N/A | N/A | N/A | 0.74 ppb (8) | N/A | 8.0 μg/m3 (34) | 35.0 | |
Jan. 11, 2021, 8 p.m. | 75.7 ppb (75) | 47.5 ppb (45) | N/A | 28.0 ppb (27) | N/A | N/A | N/A | 0.82 ppb (10) | N/A | 11.0 μg/m3 (46) | 46.0 | |
Jan. 11, 2021, 7 p.m. | 74.7 ppb (74) | 43.4 ppb (41) | N/A | 31.0 ppb (30) | N/A | N/A | N/A | 0.68 ppb (8) | N/A | 10.0 μg/m3 (42) | 42.0 | |
Jan. 11, 2021, 6 p.m. | 64.2 ppb (62) | 42.4 ppb (40) | N/A | 22.0 ppb (21) | N/A | N/A | N/A | 0.61 ppb (7) | N/A | 13.0 μg/m3 (53) | 53.0 | |
Jan. 11, 2021, 5 p.m. | 86.0 ppb (86) | 59.8 ppb (58) | N/A | 26.0 ppb (25) | N/A | N/A | N/A | 0.72 ppb (8) | N/A | 21.0 μg/m3 (70) | 70.0 | |
Jan. 11, 2021, 4 p.m. | 132.5 ppb (107) | 96.2 ppb (96) | N/A | 36.0 ppb (34) | N/A | N/A | N/A | 1.16 ppb (14) | N/A | 21.0 μg/m3 (70) | 96.0 | |
Jan. 11, 2021, 3 p.m. | 157.4 ppb (112) | 121.8 ppb (105) | N/A | 36.0 ppb (34) | N/A | N/A | N/A | 1.13 ppb (13) | N/A | 26.0 μg/m3 (81) | 105.0 | |
Jan. 11, 2021, 2 p.m. | 204.4 ppb (121) | 163.2 ppb (113) | N/A | 41.0 ppb (39) | N/A | N/A | N/A | 1.45 ppb (16) | N/A | 23.0 μg/m3 (74) | 113.0 | |
Jan. 11, 2021, 1 p.m. | 179.4 ppb (116) | 141.2 ppb (109) | N/A | 38.0 ppb (36) | N/A | N/A | N/A | 1.34 ppb (15) | N/A | 23.0 μg/m3 (74) | 109.0 | |
Jan. 11, 2021, noon | 182.4 ppb (117) | 146.1 ppb (110) | N/A | 36.0 ppb (34) | N/A | N/A | N/A | 1.37 ppb (16) | N/A | 22.0 μg/m3 (72) | 110.0 | |
Jan. 11, 2021, 11 a.m. | 170.2 ppb (115) | 139.4 ppb (109) | N/A | 31.0 ppb (30) | N/A | N/A | N/A | 1.22 ppb (14) | N/A | 17.0 μg/m3 (62) | 109.0 | |
Jan. 11, 2021, 10 a.m. | 107.7 ppb (103) | 76.7 ppb (76) | N/A | 31.0 ppb (30) | N/A | N/A | N/A | 0.71 ppb (8) | N/A | 16.0 μg/m3 (60) | 76.0 | |
Jan. 11, 2021, 9 a.m. | 136.7 ppb (108) | 102.3 ppb (102) | N/A | 34.0 ppb (33) | N/A | N/A | N/A | 0.97 ppb (12) | N/A | 13.0 μg/m3 (53) | 102.0 | |
Jan. 11, 2021, 8 a.m. | 109.0 ppb (103) | 74.2 ppb (73) | N/A | 35.0 ppb (34) | N/A | N/A | N/A | 0.62 ppb (7) | N/A | 10.0 μg/m3 (42) | 73.0 | |
Jan. 11, 2021, 7 a.m. | 54.1 ppb (52) | 25.5 ppb (25) | N/A | 29.0 ppb (28) | N/A | N/A | N/A | 0.44 ppb (5) | N/A | 10.0 μg/m3 (42) | 42.0 | |
Jan. 11, 2021, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 μg/m3 (38) | 38.0 | |
Jan. 11, 2021, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 μg/m3 (30) | 30.0 | |
Jan. 11, 2021, 4 a.m. | 58.7 ppb (57) | 30.3 ppb (29) | N/A | 29.0 ppb (28) | N/A | N/A | N/A | 0.59 ppb (7) | N/A | 11.0 μg/m3 (46) | 46.0 | |
Jan. 11, 2021, 3 a.m. | 62.8 ppb (61) | 30.5 ppb (29) | N/A | 32.0 ppb (31) | N/A | N/A | N/A | 0.85 ppb (10) | N/A | 6.0 μg/m3 (25) | 31.0 | |
Jan. 11, 2021, 2 a.m. | 47.3 ppb (45) | 23.8 ppb (23) | N/A | 24.0 ppb (23) | N/A | N/A | N/A | 0.68 ppb (8) | N/A | 17.0 μg/m3 (62) | 62.0 | |
Jan. 11, 2021, 1 a.m. | 64.1 ppb (62) | 33.2 ppb (32) | N/A | 31.0 ppb (30) | N/A | N/A | N/A | 0.85 ppb (10) | N/A | 15.0 μg/m3 (58) | 58.0 | |
Jan. 11, 2021, midnight | 59.8 ppb (58) | 31.2 ppb (30) | N/A | 29.0 ppb (28) | N/A | N/A | N/A | 0.98 ppb (12) | N/A | 14.0 μg/m3 (55) | 55.0 | |
Jan. 10, 2021, 11 p.m. | 57.5 ppb (55) | 30.9 ppb (30) | N/A | 27.0 ppb (26) | N/A | N/A | N/A | 0.83 ppb (10) | N/A | 9.0 μg/m3 (38) | 38.0 | |
Jan. 10, 2021, 10 p.m. | 62.8 ppb (61) | 34.1 ppb (33) | N/A | 29.0 ppb (28) | N/A | N/A | N/A | 0.79 ppb (10) | N/A | 6.0 μg/m3 (25) | 33.0 | |
Jan. 10, 2021, 9 p.m. | 51.2 ppb (49) | 26.7 ppb (26) | N/A | 24.0 ppb (23) | N/A | N/A | N/A | 0.76 ppb (10) | N/A | 6.0 μg/m3 (25) | 26.0 | |
Jan. 10, 2021, 8 p.m. | 44.8 ppb (43) | 25.2 ppb (24) | N/A | 20.0 ppb (19) | N/A | N/A | N/A | 0.66 ppb (8) | N/A | 6.0 μg/m3 (25) | 25.0 | |
Jan. 10, 2021, 7 p.m. | 29.5 ppb (28) | 18.1 ppb (18) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | 0.53 ppb (6) | N/A | 6.0 μg/m3 (25) | 25.0 | |
Jan. 10, 2021, 6 p.m. | 32.3 ppb (31) | 18.9 ppb (18) | N/A | 13.0 ppb (13) | N/A | N/A | N/A | 0.54 ppb (6) | N/A | 6.0 μg/m3 (25) | 25.0 | |
Jan. 10, 2021, 5 p.m. | 32.4 ppb (31) | 18.0 ppb (17) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | 0.56 ppb (7) | N/A | 4.0 μg/m3 (17) | 17.0 | |
Jan. 10, 2021, 4 p.m. | 27.5 ppb (26) | 15.9 ppb (15) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | 0.49 ppb (6) | N/A | 4.0 μg/m3 (17) | 17.0 | |
Jan. 10, 2021, 3 p.m. | 24.6 ppb (24) | 16.8 ppb (16) | N/A | 8.0 ppb (8) | N/A | N/A | N/A | 0.43 ppb (5) | N/A | 5.0 μg/m3 (21) | 21.0 | |
Jan. 10, 2021, 2 p.m. | 24.2 ppb (23) | 12.6 ppb (12) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | 0.38 ppb (5) | N/A | 5.0 μg/m3 (21) | 21.0 | |
Jan. 10, 2021, 1 p.m. | 34.8 ppb (33) | 18.5 ppb (18) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | 0.36 ppb (5) | N/A | 5.0 μg/m3 (21) | 21.0 | |
Jan. 10, 2021, noon | 26.2 ppb (25) | 13.2 ppb (13) | N/A | 13.0 ppb (13) | N/A | N/A | N/A | 0.41 ppb (5) | N/A | 6.0 μg/m3 (25) | 25.0 | |
Jan. 10, 2021, 11 a.m. | 23.0 ppb (22) | 9.3 ppb (9) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | 0.33 ppb (4) | N/A | 6.0 μg/m3 (25) | 25.0 | |
Jan. 10, 2021, 10 a.m. | 16.5 ppb (16) | 7.2 ppb (7) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | 0.27 ppb (4) | N/A | 6.0 μg/m3 (25) | 25.0 | |
Jan. 10, 2021, 9 a.m. | 14.6 ppb (14) | 5.7 ppb (6) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | 0.24 ppb (3) | N/A | 4.0 μg/m3 (17) | 17.0 | |
Jan. 10, 2021, 8 a.m. | 19.1 ppb (19) | 8.8 ppb (9) | N/A | 10.0 ppb (10) | N/A | N/A | N/A | 0.26 ppb (4) | N/A | 4.0 μg/m3 (17) | 17.0 | |
Jan. 10, 2021, 7 a.m. | 13.0 ppb (13) | 4.7 ppb (5) | N/A | 8.0 ppb (8) | N/A | N/A | N/A | 0.31 ppb (4) | N/A | 4.0 μg/m3 (17) | 17.0 | |
Jan. 10, 2021, 6 a.m. | 16.7 ppb (16) | 7.4 ppb (7) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | 0.33 ppb (4) | N/A | 4.0 μg/m3 (17) | 17.0 | |
Jan. 10, 2021, 5 a.m. | 15.9 ppb (15) | 7.7 ppb (8) | N/A | 8.0 ppb (8) | N/A | N/A | N/A | 0.35 ppb (4) | N/A | 5.0 μg/m3 (21) | 21.0 | |
Jan. 10, 2021, 4 a.m. | 23.6 ppb (23) | 12.4 ppb (12) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | 0.36 ppb (5) | N/A | 5.0 μg/m3 (21) | 21.0 | |
Jan. 10, 2021, 3 a.m. | 28.6 ppb (27) | 17.6 ppb (17) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | 0.51 ppb (6) | N/A | 6.0 μg/m3 (25) | 25.0 | |
Jan. 10, 2021, 2 a.m. | 32.1 ppb (31) | 16.9 ppb (16) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | 0.63 ppb (7) | N/A | 9.0 μg/m3 (38) | 38.0 | |
Jan. 10, 2021, 1 a.m. | 39.4 ppb (38) | 22.0 ppb (21) | N/A | 17.0 ppb (17) | N/A | N/A | N/A | 0.63 ppb (7) | N/A | 4.0 μg/m3 (17) | 21.0 | |
Jan. 10, 2021, midnight | 48.7 ppb (46) | 27.4 ppb (26) | N/A | 21.0 ppb (20) | N/A | N/A | N/A | 0.8 ppb (10) | N/A | 6.0 μg/m3 (25) | 26.0 | |
Jan. 9, 2021, 11 p.m. | 38.6 ppb (37) | 20.0 ppb (19) | N/A | 19.0 ppb (18) | N/A | N/A | N/A | 0.66 ppb (8) | N/A | 6.0 μg/m3 (25) | 25.0 | |
Jan. 9, 2021, 10 p.m. | 34.6 ppb (33) | 16.8 ppb (16) | N/A | 18.0 ppb (17) | N/A | N/A | N/A | 0.57 ppb (7) | N/A | 4.0 μg/m3 (17) | 17.0 | |
Jan. 9, 2021, 9 p.m. | 31.8 ppb (30) | 15.6 ppb (15) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | 0.45 ppb (6) | N/A | 3.0 μg/m3 (13) | 16.0 | |
Jan. 9, 2021, 8 p.m. | 30.6 ppb (29) | 20.3 ppb (20) | N/A | 10.0 ppb (10) | N/A | N/A | N/A | 0.53 ppb (6) | N/A | 4.0 μg/m3 (17) | 20.0 | |
Jan. 9, 2021, 7 p.m. | 46.4 ppb (44) | 31.8 ppb (30) | N/A | 15.0 ppb (15) | N/A | N/A | N/A | 0.56 ppb (7) | N/A | 3.0 μg/m3 (13) | 30.0 | |
Jan. 9, 2021, 6 p.m. | 36.6 ppb (35) | 22.4 ppb (22) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | 0.45 ppb (6) | N/A | 3.0 μg/m3 (13) | 22.0 | |
Jan. 9, 2021, 5 p.m. | 27.7 ppb (27) | 17.6 ppb (17) | N/A | 10.0 ppb (10) | N/A | N/A | N/A | 0.43 ppb (5) | N/A | 3.0 μg/m3 (13) | 17.0 | |
Jan. 9, 2021, 4 p.m. | 35.3 ppb (34) | 22.9 ppb (22) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | 0.43 ppb (5) | N/A | 3.0 μg/m3 (13) | 22.0 | |
Jan. 9, 2021, 3 p.m. | 22.0 ppb (21) | 13.4 ppb (13) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | 0.32 ppb (4) | N/A | 4.0 μg/m3 (17) | 17.0 | |
Jan. 9, 2021, 2 p.m. | 31.2 ppb (30) | 20.3 ppb (20) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | 0.4 ppb (5) | N/A | 5.0 μg/m3 (21) | 21.0 | |
Jan. 9, 2021, 1 p.m. | 42.2 ppb (40) | 25.7 ppb (25) | N/A | 17.0 ppb (17) | N/A | N/A | N/A | 0.49 ppb (6) | N/A | 5.0 μg/m3 (21) | 25.0 | |
Jan. 9, 2021, noon | 56.7 ppb (54) | 33.6 ppb (32) | N/A | 23.0 ppb (22) | N/A | N/A | N/A | 0.51 ppb (6) | N/A | 4.0 μg/m3 (17) | 32.0 | |
Jan. 9, 2021, 11 a.m. | 34.4 ppb (33) | 18.8 ppb (18) | N/A | 16.0 ppb (16) | N/A | N/A | N/A | 0.41 ppb (5) | N/A | 4.0 μg/m3 (17) | 18.0 | |
Jan. 9, 2021, 10 a.m. | 38.0 ppb (36) | 23.7 ppb (23) | N/A | 14.0 ppb (14) | N/A | N/A | N/A | 0.34 ppb (4) | N/A | 4.0 μg/m3 (17) | 23.0 | |
Jan. 9, 2021, 9 a.m. | 24.4 ppb (24) | 12.9 ppb (13) | N/A | 12.0 ppb (12) | N/A | N/A | N/A | 0.3 ppb (4) | N/A | 3.0 μg/m3 (13) | 13.0 | |
Jan. 9, 2021, 8 a.m. | 21.8 ppb (21) | 10.5 ppb (10) | N/A | 11.0 ppb (11) | N/A | N/A | N/A | 0.3 ppb (4) | N/A | 4.0 μg/m3 (17) | 17.0 | |
Jan. 9, 2021, 7 a.m. | 17.3 ppb (17) | 7.9 ppb (8) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | 0.32 ppb (4) | N/A | 5.0 μg/m3 (21) | 21.0 | |
Jan. 9, 2021, 6 a.m. | 16.5 ppb (16) | 8.0 ppb (8) | N/A | 9.0 ppb (9) | N/A | N/A | N/A | 0.26 ppb (4) | N/A | 3.0 μg/m3 (13) | 13.0 | |
Jan. 9, 2021, 5 a.m. | 19.3 ppb (19) | 12.4 ppb (12) | N/A | 7.0 ppb (7) | N/A | N/A | N/A | 0.39 ppb (5) | N/A | 3.0 μg/m3 (13) | 13.0 | |
Jan. 9, 2021, 4 a.m. | 33.1 ppb (32) | 16.3 ppb (16) | N/A | 17.0 ppb (17) | N/A | N/A | N/A | 0.45 ppb (6) | N/A | 7.0 μg/m3 (30) | 30.0 | |
Jan. 9, 2021, 3 a.m. | 49.8 ppb (47) | 27.0 ppb (26) | N/A | 23.0 ppb (22) | N/A | N/A | N/A | 0.74 ppb (8) | N/A | 11.0 μg/m3 (46) | 46.0 | |
Jan. 9, 2021, 2 a.m. | 75.1 ppb (74) | 44.6 ppb (43) | N/A | 31.0 ppb (30) | N/A | N/A | N/A | 0.93 ppb (11) | N/A | 7.0 μg/m3 (30) | 43.0 | |
Jan. 9, 2021, 1 a.m. | 70.5 ppb (69) | 42.0 ppb (40) | N/A | 29.0 ppb (28) | N/A | N/A | N/A | 0.99 ppb (12) | N/A | 9.0 μg/m3 (38) | 40.0 |