AQSQID: 060750005

Site Name: San Francisco

Location: San Francisco, CA

Reporting: True, Located: True

Current AQI: 16.0

San Francisco CA, US: 37.7658, -122.3978

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Nov. 19, 2019, 7 a.m. 5.4 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 21.0 ppb (16) 0.29 ppb (3) N/A 3.0 μg/m3 (12) 16.0
 
Nov. 19, 2019, 6 a.m. 6.4 ppb (6) 0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 22.0 ppb (17) 0.3 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 19, 2019, 5 a.m. 10.4 ppb (10) 0.1 ppb (0) N/A 10.0 ppb (9) N/A N/A 18.0 ppb (14) 0.36 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 19, 2019, 4 a.m. 10.7 ppb (10) 0.2 ppb (0) N/A 11.0 ppb (10) N/A N/A 18.0 ppb (14) 0.38 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
Nov. 19, 2019, 3 a.m. 8.5 ppb (8) 0.4 ppb (0) N/A 8.0 ppb (7) N/A N/A 22.0 ppb (17) 0.35 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 19, 2019, 2 a.m. 17.5 ppb (16) 1.3 ppb (1) N/A 16.0 ppb (15) N/A N/A 17.0 ppb (13) 0.44 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 19, 2019, 1 a.m. 17.7 ppb (16) 0.9 ppb (1) N/A 17.0 ppb (16) N/A N/A 25.0 ppb (19) 0.49 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 19, 2019, midnight 18.3 ppb (17) 1.7 ppb (2) N/A 17.0 ppb (16) N/A N/A 27.0 ppb (21) 0.48 ppb (5) N/A 14.0 μg/m3 (54) 54.0
 
Nov. 18, 2019, 11 p.m. 29.1 ppb (27) 2.6 ppb (2) N/A 27.0 ppb (25) N/A N/A 42.0 ppb (32) 0.55 ppb (6) N/A 23.0 μg/m3 (73) 73.0
 
Nov. 18, 2019, 10 p.m. 21.4 ppb (20) 2.5 ppb (2) N/A 19.0 ppb (18) N/A N/A 54.0 ppb (42) 0.5 ppb (6) N/A 20.0 μg/m3 (67) 67.0
 
Nov. 18, 2019, 9 p.m. 20.2 ppb (19) 2.4 ppb (2) N/A 18.0 ppb (17) N/A N/A 57.0 ppb (44) 0.47 ppb (5) N/A N/A 44.0
 
Nov. 18, 2019, 8 p.m. 25.5 ppb (24) 4.0 ppb (4) N/A 22.0 ppb (20) N/A N/A 48.0 ppb (37) 0.56 ppb (6) N/A 27.0 μg/m3 (82) 82.0
 
Nov. 18, 2019, 7 p.m. 35.6 ppb (33) 9.1 ppb (8) N/A 26.0 ppb (24) N/A N/A 33.0 ppb (25) 0.6 ppb (7) N/A 27.0 μg/m3 (82) 82.0
 
Nov. 18, 2019, 6 p.m. 30.6 ppb (28) 7.6 ppb (7) N/A 23.0 ppb (21) N/A N/A 32.0 ppb (25) 0.53 ppb (6) N/A 27.0 μg/m3 (82) 82.0
 
Nov. 18, 2019, 5 p.m. 52.5 ppb (49) 21.9 ppb (20) N/A 31.0 ppb (29) N/A N/A 17.0 ppb (13) 0.63 ppb (7) N/A 21.0 μg/m3 (69) 69.0
 
Nov. 18, 2019, 4 p.m. 84.8 ppb (83) 51.7 ppb (48) N/A 33.0 ppb (31) N/A N/A 8.0 ppb (6) 0.79 ppb (9) N/A 21.0 μg/m3 (69) 83.0
 
Nov. 18, 2019, 3 p.m. 95.8 ppb (94) 58.9 ppb (55) N/A 37.0 ppb (34) N/A N/A 5.0 ppb (4) 0.92 ppb (10) N/A 18.0 μg/m3 (63) 94.0
 
Nov. 18, 2019, 2 p.m. 47.6 ppb (44) 11.9 ppb (11) N/A 36.0 ppb (33) N/A N/A 7.0 ppb (5) 0.83 ppb (9) N/A 21.0 μg/m3 (69) 69.0
 
Nov. 18, 2019, 1 p.m. 26.9 ppb (25) 0.6 ppb (1) N/A 26.0 ppb (24) N/A N/A 18.0 ppb (14) 0.49 ppb (5) N/A 21.0 μg/m3 (69) 69.0
 
Nov. 18, 2019, noon 30.4 ppb (28) 2.4 ppb (2) N/A 28.0 ppb (26) N/A N/A 20.0 ppb (15) 0.51 ppb (6) N/A 23.0 μg/m3 (73) 73.0
 
Nov. 18, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (63) 63.0
 
Nov. 18, 2019, 10 a.m. 49.5 ppb (46) 11.2 ppb (10) N/A 38.0 ppb (35) N/A N/A 6.0 ppb (5) 0.87 ppb (10) N/A 23.0 μg/m3 (73) 73.0
 
Nov. 18, 2019, 9 a.m. 60.3 ppb (57) 19.3 ppb (18) N/A 41.0 ppb (38) N/A N/A 6.0 ppb (5) 0.97 ppb (11) N/A 24.0 μg/m3 (76) 76.0
 
Nov. 18, 2019, 8 a.m. 65.9 ppb (63) 20.6 ppb (19) N/A 45.0 ppb (42) N/A N/A 5.0 ppb (4) 1.0 ppb (11) N/A 26.0 μg/m3 (80) 80.0
 
Nov. 18, 2019, 7 a.m. 74.2 ppb (71) 29.2 ppb (27) N/A 45.0 ppb (42) N/A N/A 6.0 ppb (5) 1.17 ppb (13) N/A 27.0 μg/m3 (82) 82.0
 
Nov. 18, 2019, 6 a.m. 76.1 ppb (74) 30.5 ppb (28) N/A 46.0 ppb (43) N/A N/A 6.0 ppb (5) 1.12 ppb (12) N/A 26.0 μg/m3 (80) 80.0
 
Nov. 18, 2019, 5 a.m. 46.7 ppb (43) 6.6 ppb (6) N/A 40.0 ppb (37) N/A N/A 6.0 ppb (5) 0.89 ppb (10) N/A 19.0 μg/m3 (65) 65.0
 
Nov. 18, 2019, 4 a.m. 46.1 ppb (43) 8.0 ppb (7) N/A 38.0 ppb (35) N/A N/A 6.0 ppb (5) 0.86 ppb (10) N/A 20.0 μg/m3 (67) 67.0
 
Nov. 18, 2019, 3 a.m. 44.1 ppb (41) 8.1 ppb (8) N/A 36.0 ppb (33) N/A N/A 6.0 ppb (5) 0.91 ppb (10) N/A 25.0 μg/m3 (78) 78.0
 
Nov. 18, 2019, 2 a.m. 26.9 ppb (25) 1.3 ppb (1) N/A 26.0 ppb (24) N/A N/A 13.0 ppb (10) 0.66 ppb (7) N/A 14.0 μg/m3 (54) 54.0
 
Nov. 18, 2019, 1 a.m. 16.9 ppb (16) 0.2 ppb (0) N/A 17.0 ppb (16) N/A N/A 20.0 ppb (15) 0.54 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 18, 2019, midnight 14.1 ppb (13) 0.3 ppb (0) N/A 14.0 ppb (13) N/A N/A 35.0 ppb (27) 0.47 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 17, 2019, 11 p.m. 10.9 ppb (10) 0.6 ppb (1) N/A 10.0 ppb (9) N/A N/A 49.0 ppb (38) 0.42 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 17, 2019, 10 p.m. 9.0 ppb (8) 0.7 ppb (1) N/A 8.0 ppb (7) N/A N/A 52.0 ppb (40) 0.4 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 17, 2019, 9 p.m. 10.7 ppb (10) 1.2 ppb (1) N/A 10.0 ppb (9) N/A N/A 48.0 ppb (37) 0.42 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 17, 2019, 8 p.m. 12.7 ppb (12) 2.0 ppb (2) N/A 11.0 ppb (10) N/A N/A 40.0 ppb (31) 0.41 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 17, 2019, 7 p.m. 18.9 ppb (18) 4.5 ppb (4) N/A 14.0 ppb (13) N/A N/A 32.0 ppb (25) 0.44 ppb (5) N/A 16.0 μg/m3 (59) 59.0
 
Nov. 17, 2019, 6 p.m. 30.1 ppb (28) 11.2 ppb (10) N/A 19.0 ppb (18) N/A N/A 18.0 ppb (14) 0.51 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 17, 2019, 5 p.m. 63.1 ppb (60) 35.9 ppb (33) N/A 27.0 ppb (25) N/A N/A 8.0 ppb (6) 0.57 ppb (6) N/A 18.0 μg/m3 (63) 63.0
 
Nov. 17, 2019, 4 p.m. 60.6 ppb (57) 38.7 ppb (36) N/A 22.0 ppb (20) N/A N/A 5.0 ppb (4) 0.63 ppb (7) N/A 10.0 μg/m3 (42) 57.0
 
Nov. 17, 2019, 3 p.m. 34.7 ppb (32) 19.8 ppb (18) N/A 15.0 ppb (14) N/A N/A 4.0 ppb (3) 0.53 ppb (6) N/A 7.0 μg/m3 (29) 32.0
 
Nov. 17, 2019, 2 p.m. 51.4 ppb (48) 35.8 ppb (33) N/A 16.0 ppb (15) N/A N/A 3.0 ppb (2) 0.7 ppb (8) N/A 11.0 μg/m3 (46) 48.0
 
Nov. 17, 2019, 1 p.m. 46.0 ppb (43) 29.4 ppb (27) N/A 17.0 ppb (16) N/A N/A 3.0 ppb (2) 0.73 ppb (8) N/A 13.0 μg/m3 (52) 52.0
 
Nov. 17, 2019, noon 43.4 ppb (40) 26.7 ppb (25) N/A 17.0 ppb (16) N/A N/A 3.0 ppb (2) 0.7 ppb (8) N/A 9.0 μg/m3 (38) 40.0
 
Nov. 17, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
Nov. 17, 2019, 10 a.m. 52.9 ppb (49) 34.6 ppb (32) N/A 18.0 ppb (17) N/A N/A 3.0 ppb (2) 0.77 ppb (9) N/A 7.0 μg/m3 (29) 49.0
 
Nov. 17, 2019, 9 a.m. 42.6 ppb (39) 24.5 ppb (23) N/A 18.0 ppb (17) N/A N/A 3.0 ppb (2) 0.73 ppb (8) N/A 9.0 μg/m3 (38) 39.0
 
Nov. 17, 2019, 8 a.m. 35.1 ppb (32) 18.6 ppb (17) N/A 16.0 ppb (15) N/A N/A 3.0 ppb (2) 0.82 ppb (9) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 17, 2019, 7 a.m. 36.6 ppb (34) 19.8 ppb (18) N/A 17.0 ppb (16) N/A N/A 3.0 ppb (2) 0.75 ppb (8) N/A 8.0 μg/m3 (33) 34.0
 
Nov. 17, 2019, 6 a.m. 23.7 ppb (22) 7.0 ppb (6) N/A 17.0 ppb (16) N/A N/A 3.0 ppb (2) 0.52 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 17, 2019, 5 a.m. 22.3 ppb (21) 4.9 ppb (5) N/A 17.0 ppb (16) N/A N/A 4.0 ppb (3) 0.52 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 17, 2019, 4 a.m. 22.0 ppb (20) 4.3 ppb (4) N/A 18.0 ppb (17) N/A N/A 4.0 ppb (3) 0.53 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 17, 2019, 3 a.m. 20.8 ppb (19) 2.8 ppb (3) N/A 18.0 ppb (17) N/A N/A 5.0 ppb (4) 0.49 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 17, 2019, 2 a.m. 17.8 ppb (16) 2.2 ppb (2) N/A 16.0 ppb (15) N/A N/A 10.0 ppb (8) 0.47 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
Nov. 17, 2019, 1 a.m. 13.1 ppb (12) 0.9 ppb (1) N/A 12.0 ppb (11) N/A N/A 16.0 ppb (12) 0.42 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 17, 2019, midnight 13.5 ppb (12) 1.8 ppb (2) N/A 12.0 ppb (11) N/A N/A 19.0 ppb (15) 0.39 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 16, 2019, 11 p.m. 14.9 ppb (14) 3.6 ppb (3) N/A 11.0 ppb (10) N/A N/A 17.0 ppb (13) 0.41 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 16, 2019, 10 p.m. 33.0 ppb (31) 13.0 ppb (12) N/A 20.0 ppb (19) N/A N/A 14.0 ppb (11) 0.49 ppb (5) N/A 15.0 μg/m3 (56) 56.0
 
Nov. 16, 2019, 9 p.m. 26.4 ppb (24) 11.0 ppb (10) N/A 15.0 ppb (14) N/A N/A 15.0 ppb (12) 0.45 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 16, 2019, 8 p.m. 21.2 ppb (20) 9.3 ppb (9) N/A 12.0 ppb (11) N/A N/A 16.0 ppb (12) 0.38 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 16, 2019, 7 p.m. 14.9 ppb (14) 6.3 ppb (6) N/A 9.0 ppb (8) N/A N/A 17.0 ppb (13) 0.32 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 16, 2019, 6 p.m. 11.6 ppb (11) 3.4 ppb (3) N/A 8.0 ppb (7) N/A N/A 16.0 ppb (12) 0.3 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 16, 2019, 5 p.m. 8.8 ppb (8) 2.0 ppb (2) N/A 7.0 ppb (6) N/A N/A 16.0 ppb (12) 0.3 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Nov. 16, 2019, 4 p.m. 7.3 ppb (7) 1.1 ppb (1) N/A 6.0 ppb (6) N/A N/A 16.0 ppb (12) 0.29 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 16, 2019, 3 p.m. 10.0 ppb (9) 0.6 ppb (1) N/A 9.0 ppb (8) N/A N/A 14.0 ppb (11) 0.28 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 16, 2019, 2 p.m. 7.6 ppb (7) 0.2 ppb (0) N/A 7.0 ppb (6) N/A N/A 16.0 ppb (12) 0.29 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 16, 2019, 1 p.m. 6.2 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A 17.0 ppb (13) 0.27 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 16, 2019, noon 6.1 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A 18.0 ppb (14) 0.28 ppb (3) N/A 13.0 μg/m3 (52) 52.0
 
Nov. 16, 2019, 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
 
Nov. 16, 2019, 10 a.m. 8.9 ppb (8) 0.0 ppb (0) N/A 9.0 ppb (8) N/A N/A 17.0 ppb (13) 0.29 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 16, 2019, 9 a.m. 15.4 ppb (14) 0.4 ppb (0) N/A 15.0 ppb (14) N/A N/A 12.0 ppb (9) 0.31 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 16, 2019, 8 a.m. 22.9 ppb (21) 1.8 ppb (2) N/A 21.0 ppb (19) N/A N/A 5.0 ppb (4) 0.43 ppb (5) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 16, 2019, 7 a.m. 18.8 ppb (17) 0.7 ppb (1) N/A 18.0 ppb (17) N/A N/A 6.0 ppb (5) 0.52 ppb (6) N/A 4.0 μg/m3 (17) 17.0
 
Nov. 16, 2019, 6 a.m. 15.1 ppb (14) 0.6 ppb (1) N/A 15.0 ppb (14) N/A N/A 11.0 ppb (8) 0.43 ppb (5) N/A 4.0 μg/m3 (17) 17.0
 
Nov. 16, 2019, 5 a.m. 13.3 ppb (12) 0.9 ppb (1) N/A 12.0 ppb (11) N/A N/A 16.0 ppb (12) 0.37 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 16, 2019, 4 a.m. 12.0 ppb (11) 0.4 ppb (0) N/A 12.0 ppb (11) N/A N/A 17.0 ppb (13) 0.35 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 16, 2019, 3 a.m. 10.5 ppb (10) 0.5 ppb (0) N/A 10.0 ppb (9) N/A N/A 20.0 ppb (15) 0.3 ppb (3) N/A 3.0 μg/m3 (12) 15.0
 
Nov. 16, 2019, 2 a.m. 9.5 ppb (9) 0.5 ppb (0) N/A 9.0 ppb (8) N/A N/A 21.0 ppb (16) 0.32 ppb (4) N/A 2.0 μg/m3 (8) 16.0
 
Nov. 16, 2019, 1 a.m. 8.7 ppb (8) 0.4 ppb (0) N/A 8.0 ppb (7) N/A N/A 23.0 ppb (18) 0.34 ppb (4) N/A 2.0 μg/m3 (8) 18.0
 
Nov. 16, 2019, midnight 7.1 ppb (7) 0.6 ppb (1) N/A 7.0 ppb (6) N/A N/A 25.0 ppb (19) 0.31 ppb (3) N/A 3.0 μg/m3 (12) 19.0
 
Nov. 15, 2019, 11 p.m. 7.2 ppb (7) 1.4 ppb (1) N/A 6.0 ppb (6) N/A N/A 27.0 ppb (21) 0.28 ppb (3) N/A 3.0 μg/m3 (12) 21.0
 
Nov. 15, 2019, 10 p.m. 8.2 ppb (8) 2.5 ppb (2) N/A 6.0 ppb (6) N/A N/A 26.0 ppb (20) 0.28 ppb (3) N/A 3.0 μg/m3 (12) 20.0
 
Nov. 15, 2019, 9 p.m. 9.4 ppb (9) 2.4 ppb (2) N/A 7.0 ppb (6) N/A N/A 28.0 ppb (22) 0.31 ppb (3) N/A 5.0 μg/m3 (21) 22.0
 
Nov. 15, 2019, 8 p.m. 8.2 ppb (8) 1.9 ppb (2) N/A 6.0 ppb (6) N/A N/A 31.0 ppb (24) 0.3 ppb (3) N/A 5.0 μg/m3 (21) 24.0
 
Nov. 15, 2019, 7 p.m. 11.8 ppb (11) 2.9 ppb (3) N/A 9.0 ppb (8) N/A N/A 30.0 ppb (23) 0.32 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 15, 2019, 6 p.m. 21.7 ppb (20) 6.3 ppb (6) N/A 15.0 ppb (14) N/A N/A 22.0 ppb (17) 0.32 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 15, 2019, 5 p.m. 35.6 ppb (33) 13.9 ppb (13) N/A 22.0 ppb (20) N/A N/A 12.0 ppb (9) 0.35 ppb (4) N/A 3.0 μg/m3 (12) 33.0
 
Nov. 15, 2019, 4 p.m. 23.9 ppb (22) 5.6 ppb (5) N/A 18.0 ppb (17) N/A N/A 14.0 ppb (11) 0.31 ppb (3) N/A 3.0 μg/m3 (12) 22.0
 
Nov. 15, 2019, 3 p.m. 29.9 ppb (28) 7.3 ppb (7) N/A 23.0 ppb (21) N/A N/A 12.0 ppb (9) 0.33 ppb (4) N/A 5.0 μg/m3 (21) 28.0
 
Nov. 15, 2019, 2 p.m. 25.8 ppb (24) 3.1 ppb (3) N/A 23.0 ppb (21) N/A N/A 10.0 ppb (8) 0.3 ppb (3) N/A 0.0 μg/m3 (0) 24.0
 
Nov. 15, 2019, 1 p.m. 22.0 ppb (20) 6.1 ppb (6) N/A 16.0 ppb (15) N/A N/A 17.0 ppb (13) 0.25 ppb (3) N/A 1.0 μg/m3 (4) 20.0
 
Nov. 15, 2019, noon 8.3 ppb (8) 1.1 ppb (1) N/A 7.0 ppb (6) N/A N/A 23.0 ppb (18) 0.24 ppb (3) N/A 1.0 μg/m3 (4) 18.0
 
Nov. 15, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
Nov. 15, 2019, 10 a.m. 7.0 ppb (6) 0.1 ppb (0) N/A 7.0 ppb (6) N/A N/A 24.0 ppb (18) 0.23 ppb (3) N/A 2.0 μg/m3 (8) 18.0
 
Nov. 15, 2019, 9 a.m. 8.3 ppb (8) 0.7 ppb (1) N/A 8.0 ppb (7) N/A N/A 24.0 ppb (18) 0.25 ppb (3) N/A 0.0 μg/m3 (0) 18.0
 
Nov. 15, 2019, 8 a.m. 6.1 ppb (6) 0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 26.0 ppb (20) 0.27 ppb (3) N/A 1.0 μg/m3 (4) 20.0
 
Nov. 15, 2019, 7 a.m. 8.9 ppb (8) 0.1 ppb (0) N/A 9.0 ppb (8) N/A N/A 24.0 ppb (18) 0.29 ppb (3) N/A 3.0 μg/m3 (12) 18.0
 
Nov. 15, 2019, 6 a.m. 8.9 ppb (8) 0.3 ppb (0) N/A 9.0 ppb (8) N/A N/A 26.0 ppb (20) 0.25 ppb (3) N/A 2.0 μg/m3 (8) 20.0
 
Nov. 15, 2019, 5 a.m. 12.0 ppb (11) 0.4 ppb (0) N/A 12.0 ppb (11) N/A N/A 23.0 ppb (18) 0.31 ppb (3) N/A 2.0 μg/m3 (8) 18.0
 
Nov. 15, 2019, 4 a.m. 10.0 ppb (9) 0.2 ppb (0) N/A 10.0 ppb (9) N/A N/A 25.0 ppb (19) 0.31 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 15, 2019, 3 a.m. 10.4 ppb (10) 0.2 ppb (0) N/A 10.0 ppb (9) N/A N/A 25.0 ppb (19) 0.33 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
Nov. 15, 2019, 2 a.m. 10.8 ppb (10) 0.3 ppb (0) N/A 11.0 ppb (10) N/A N/A 26.0 ppb (20) 0.34 ppb (4) N/A 3.0 μg/m3 (12) 20.0
 
Nov. 15, 2019, 1 a.m. 11.1 ppb (10) 0.2 ppb (0) N/A 11.0 ppb (10) N/A N/A 25.0 ppb (19) 0.34 ppb (4) N/A 1.0 μg/m3 (4) 19.0
 
Nov. 15, 2019, midnight 11.0 ppb (10) 1.1 ppb (1) N/A 10.0 ppb (9) N/A N/A 26.0 ppb (20) 0.33 ppb (4) N/A 2.0 μg/m3 (8) 20.0
 
Nov. 14, 2019, 11 p.m. 13.5 ppb (12) 1.5 ppb (1) N/A 12.0 ppb (11) N/A N/A 27.0 ppb (21) 0.34 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 14, 2019, 10 p.m. 8.5 ppb (8) 0.7 ppb (1) N/A 8.0 ppb (7) N/A N/A 33.0 ppb (25) 0.36 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 14, 2019, 9 p.m. 7.3 ppb (7) 0.8 ppb (1) N/A 7.0 ppb (6) N/A N/A 34.0 ppb (26) 0.36 ppb (4) N/A 5.0 μg/m3 (21) 26.0
 
Nov. 14, 2019, 8 p.m. 11.0 ppb (10) 1.4 ppb (1) N/A 10.0 ppb (9) N/A N/A 30.0 ppb (23) 0.35 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 14, 2019, 7 p.m. 19.3 ppb (18) 3.8 ppb (4) N/A 16.0 ppb (15) N/A N/A 22.0 ppb (17) 0.39 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 14, 2019, 6 p.m. 16.1 ppb (15) 3.0 ppb (3) N/A 13.0 ppb (12) N/A N/A 24.0 ppb (18) 0.39 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 14, 2019, 5 p.m. 15.6 ppb (14) 3.1 ppb (3) N/A 13.0 ppb (12) N/A N/A 25.0 ppb (19) 0.41 ppb (5) N/A N/A 19.0
 
Nov. 14, 2019, 4 p.m. 16.3 ppb (15) 2.5 ppb (2) N/A 14.0 ppb (13) N/A N/A 22.0 ppb (17) 0.39 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 14, 2019, 3 p.m. 27.6 ppb (26) 5.1 ppb (5) N/A 22.0 ppb (20) N/A N/A 11.0 ppb (8) 0.44 ppb (5) N/A 19.0 μg/m3 (65) 65.0
 
Nov. 14, 2019, 2 p.m. 24.5 ppb (23) 1.4 ppb (1) N/A 23.0 ppb (21) N/A N/A 10.0 ppb (8) 0.41 ppb (5) N/A 20.0 μg/m3 (67) 67.0
 
Nov. 14, 2019, 1 p.m. 17.2 ppb (16) 0.2 ppb (0) N/A 17.0 ppb (16) N/A N/A 16.0 ppb (12) 0.4 ppb (4) N/A 16.0 μg/m3 (59) 59.0
 
Nov. 14, 2019, noon 14.1 ppb (13) 0.0 ppb (0) N/A 14.0 ppb (13) N/A N/A 22.0 ppb (17) 0.33 ppb (4) N/A 13.0 μg/m3 (52) 52.0
 
Nov. 14, 2019, 11 a.m. 15.0 ppb (14) 1.2 ppb (1) N/A 14.0 ppb (13) N/A N/A 23.0 ppb (18) 0.35 ppb (4) N/A 16.0 μg/m3 (59) 59.0
 
Nov. 14, 2019, 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
 
Nov. 14, 2019, 9 a.m. 14.1 ppb (13) 2.3 ppb (2) N/A 12.0 ppb (11) N/A N/A 32.0 ppb (25) 0.29 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 14, 2019, 8 a.m. 9.6 ppb (9) 0.2 ppb (0) N/A 9.0 ppb (8) N/A N/A 33.0 ppb (25) 0.3 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 14, 2019, 7 a.m. 8.9 ppb (8) 0.2 ppb (0) N/A 9.0 ppb (8) N/A N/A 36.0 ppb (28) 0.3 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 14, 2019, 4 a.m. 11.3 ppb (10) 0.2 ppb (0) N/A 11.0 ppb (10) N/A N/A 33.0 ppb (25) 0.39 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 14, 2019, 3 a.m. 8.6 ppb (8) 0.0 ppb (0) N/A 9.0 ppb (8) N/A N/A 36.0 ppb (28) 0.37 ppb (4) N/A 16.0 μg/m3 (59) 59.0
 
Nov. 14, 2019, 2 a.m. 7.4 ppb (7) 0.1 ppb (0) N/A 7.0 ppb (6) N/A N/A 37.0 ppb (28) 0.36 ppb (4) N/A 14.0 μg/m3 (54) 54.0
 
Nov. 14, 2019, 1 a.m. 7.8 ppb (7) 0.2 ppb (0) N/A 8.0 ppb (7) N/A N/A 35.0 ppb (27) 0.37 ppb (4) N/A 13.0 μg/m3 (52) 52.0
 
Nov. 14, 2019, midnight 10.4 ppb (10) 0.5 ppb (0) N/A 10.0 ppb (9) N/A N/A 35.0 ppb (27) 0.42 ppb (5) N/A 13.0 μg/m3 (52) 52.0
 
Nov. 13, 2019, 11 p.m. 11.5 ppb (11) 1.1 ppb (1) N/A 10.0 ppb (9) N/A N/A 34.0 ppb (26) 0.38 ppb (4) N/A 13.0 μg/m3 (52) 52.0
 
Nov. 13, 2019, 10 p.m. 12.6 ppb (12) 2.5 ppb (2) N/A 10.0 ppb (9) N/A N/A 31.0 ppb (24) 0.41 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 13, 2019, 9 p.m. 17.2 ppb (16) 4.5 ppb (4) N/A 13.0 ppb (12) N/A N/A 28.0 ppb (22) 0.41 ppb (5) N/A 18.0 μg/m3 (63) 63.0
 
Nov. 13, 2019, 8 p.m. 14.1 ppb (13) 4.2 ppb (4) N/A 10.0 ppb (9) N/A N/A 26.0 ppb (20) 0.37 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 13, 2019, 7 p.m. 16.2 ppb (15) 5.2 ppb (5) N/A 11.0 ppb (10) N/A N/A 22.0 ppb (17) 0.43 ppb (5) N/A 15.0 μg/m3 (56) 56.0
 
Nov. 13, 2019, 6 p.m. 23.1 ppb (21) 9.1 ppb (8) N/A 14.0 ppb (13) N/A N/A 18.0 ppb (14) 0.48 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 13, 2019, 5 p.m. 21.9 ppb (20) 9.2 ppb (9) N/A 13.0 ppb (12) N/A N/A 17.0 ppb (13) 0.47 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 13, 2019, 4 p.m. 37.1 ppb (34) 17.9 ppb (17) N/A 19.0 ppb (18) N/A N/A 9.0 ppb (7) 0.48 ppb (5) N/A 8.0 μg/m3 (33) 34.0
 
Nov. 13, 2019, 3 p.m. 32.6 ppb (30) 13.3 ppb (12) N/A 19.0 ppb (18) N/A N/A 5.0 ppb (4) 0.46 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 13, 2019, 2 p.m. 22.0 ppb (20) 5.4 ppb (5) N/A 17.0 ppb (16) N/A N/A 6.0 ppb (5) 0.4 ppb (4) N/A 4.0 μg/m3 (17) 20.0
 
Nov. 13, 2019, 1 p.m. 16.9 ppb (16) 2.2 ppb (2) N/A 15.0 ppb (14) N/A N/A 7.0 ppb (5) 0.36 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
Nov. 13, 2019, noon 14.7 ppb (14) 1.0 ppb (1) N/A 14.0 ppb (13) N/A N/A 8.0 ppb (6) 0.31 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Nov. 13, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Nov. 13, 2019, 10 a.m. 13.0 ppb (12) 0.3 ppb (0) N/A 13.0 ppb (12) N/A N/A 9.0 ppb (7) 0.33 ppb (4) N/A 3.0 μg/m3 (12) 12.0
 
Nov. 13, 2019, 9 a.m. 12.6 ppb (12) 0.4 ppb (0) N/A 12.0 ppb (11) N/A N/A 10.0 ppb (8) 0.34 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 13, 2019, 8 a.m. 9.5 ppb (9) 0.3 ppb (0) N/A 9.0 ppb (8) N/A N/A 15.0 ppb (12) 0.31 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 13, 2019, 7 a.m. 9.8 ppb (9) 0.6 ppb (1) N/A 9.0 ppb (8) N/A N/A 16.0 ppb (12) 0.35 ppb (4) N/A 3.0 μg/m3 (12) 12.0
 
Nov. 13, 2019, 6 a.m. 9.8 ppb (9) 0.7 ppb (1) N/A 9.0 ppb (8) N/A N/A 14.0 ppb (11) 0.34 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 13, 2019, 5 a.m. 13.0 ppb (12) 0.8 ppb (1) N/A 12.0 ppb (11) N/A N/A 12.0 ppb (9) 0.37 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 13, 2019, 4 a.m. 14.5 ppb (13) 1.3 ppb (1) N/A 13.0 ppb (12) N/A N/A 12.0 ppb (9) 0.41 ppb (5) N/A 4.0 μg/m3 (17) 17.0
 
Nov. 13, 2019, 3 a.m. 18.8 ppb (17) 2.1 ppb (2) N/A 17.0 ppb (16) N/A N/A 12.0 ppb (9) 0.43 ppb (5) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 13, 2019, 2 a.m. 21.4 ppb (20) 1.3 ppb (1) N/A 20.0 ppb (19) N/A N/A 15.0 ppb (12) 0.48 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 13, 2019, 1 a.m. 24.0 ppb (22) 1.0 ppb (1) N/A 23.0 ppb (21) N/A N/A 23.0 ppb (18) 0.53 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 13, 2019, midnight 20.3 ppb (19) 1.3 ppb (1) N/A 19.0 ppb (18) N/A N/A 33.0 ppb (25) 0.49 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 12, 2019, 11 p.m. 22.0 ppb (20) 2.6 ppb (2) N/A 19.0 ppb (18) N/A N/A 34.0 ppb (26) 0.48 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 12, 2019, 10 p.m. 24.9 ppb (23) 4.2 ppb (4) N/A 21.0 ppb (19) N/A N/A 34.0 ppb (26) 0.48 ppb (5) N/A 18.0 μg/m3 (63) 63.0
 
Nov. 12, 2019, 9 p.m. 22.5 ppb (21) 3.2 ppb (3) N/A 19.0 ppb (18) N/A N/A 46.0 ppb (35) 0.48 ppb (5) N/A 20.0 μg/m3 (67) 67.0
 
Nov. 12, 2019, 8 p.m. 20.8 ppb (19) 3.3 ppb (3) N/A 18.0 ppb (17) N/A N/A 49.0 ppb (38) 0.44 ppb (5) N/A 21.0 μg/m3 (69) 69.0
 
Nov. 12, 2019, 7 p.m. 34.9 ppb (32) 9.1 ppb (8) N/A 26.0 ppb (24) N/A N/A 29.0 ppb (22) 0.5 ppb (6) N/A 21.0 μg/m3 (69) 69.0
 
Nov. 12, 2019, 6 p.m. 40.9 ppb (38) 15.2 ppb (14) N/A 26.0 ppb (24) N/A N/A 19.0 ppb (15) 0.51 ppb (6) N/A 14.0 μg/m3 (54) 54.0
 
Nov. 12, 2019, 5 p.m. 70.2 ppb (67) 37.2 ppb (34) N/A 33.0 ppb (31) N/A N/A 13.0 ppb (10) 0.69 ppb (8) N/A 23.0 μg/m3 (73) 73.0
 
Nov. 12, 2019, 4 p.m. 98.0 ppb (97) 61.6 ppb (58) N/A 36.0 ppb (33) N/A N/A 7.0 ppb (5) 0.95 ppb (11) N/A 18.0 μg/m3 (63) 97.0
 
Nov. 12, 2019, 3 p.m. 91.1 ppb (89) 59.6 ppb (56) N/A 32.0 ppb (30) N/A N/A 4.0 ppb (3) 0.85 ppb (9) N/A 17.0 μg/m3 (61) 89.0
 
Nov. 12, 2019, 2 p.m. 49.6 ppb (46) 26.9 ppb (25) N/A 23.0 ppb (21) N/A N/A 2.0 ppb (2) 0.56 ppb (6) N/A 6.0 μg/m3 (25) 46.0
 
Nov. 12, 2019, 1 p.m. 32.7 ppb (30) 14.3 ppb (13) N/A 18.0 ppb (17) N/A N/A 2.0 ppb (2) 0.45 ppb (5) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 12, 2019, noon 21.7 ppb (20) 4.4 ppb (4) N/A 17.0 ppb (16) N/A N/A 3.0 ppb (2) 0.34 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 12, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
Nov. 12, 2019, 10 a.m. 19.0 ppb (18) 2.8 ppb (3) N/A 16.0 ppb (15) N/A N/A 3.0 ppb (2) 0.38 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
Nov. 12, 2019, 9 a.m. 13.6 ppb (13) 1.0 ppb (1) N/A 13.0 ppb (12) N/A N/A 7.0 ppb (5) 0.33 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 12, 2019, 8 a.m. 16.2 ppb (15) 0.7 ppb (1) N/A 16.0 ppb (15) N/A N/A 8.0 ppb (6) 0.4 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 12, 2019, 7 a.m. 37.2 ppb (34) 8.3 ppb (8) N/A 29.0 ppb (27) N/A N/A 3.0 ppb (2) 0.66 ppb (7) N/A 14.0 μg/m3 (54) 54.0
 
Nov. 12, 2019, 6 a.m. 52.1 ppb (48) 15.2 ppb (14) N/A 37.0 ppb (34) N/A N/A 4.0 ppb (3) 0.78 ppb (9) N/A 16.0 μg/m3 (59) 59.0