ID: 206

AQSQID: 060750005

Site Name: San Francisco

Added: April 21, 2020, 6:24 p.m.

Updated: Oct. 19, 2021, 1:02 p.m.

Location: San Francisco (Potrero Hill), CA

Reporting: True, Located: True

Current AQI: 13.0

San Francisco (Potrero Hill) CA, US: 37.7658, -122.3978

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Oct. 19, 2021, 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 (13) 13.0
 
Oct. 19, 2021, 10 a.m. 7.2 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (7) N/A N/A 24.0 ppb (23) 0.19 ppb (3) N/A 3.0 μg/m3 (13) 23.0
 
Oct. 19, 2021, 9 a.m. 7.5 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (8) N/A N/A 24.0 ppb (23) 0.2 ppb (3) N/A 2.0 μg/m3 (9) 23.0
 
Oct. 19, 2021, 8 a.m. 7.0 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (7) N/A N/A 26.0 ppb (25) 0.2 ppb (3) N/A 2.0 μg/m3 (9) 25.0
 
Oct. 19, 2021, 7 a.m. 4.6 ppb (5) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (31) 0.19 ppb (3) N/A 2.0 μg/m3 (9) 31.0
 
Oct. 19, 2021, 6 a.m. 4.0 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (34) 0.18 ppb (3) N/A 4.0 μg/m3 (17) 34.0
 
Oct. 19, 2021, 5 a.m. 4.4 ppb (5) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 35.0 ppb (33) 0.18 ppb (3) N/A 3.0 μg/m3 (13) 33.0
 
Oct. 19, 2021, 4 a.m. 5.4 ppb (6) 0.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (33) 0.2 ppb (3) N/A -2.0 μg/m3 (0) 33.0
 
Oct. 19, 2021, 3 a.m. 5.7 ppb (6) 0.2 ppb (1) N/A 6.0 ppb (6) N/A N/A 35.0 ppb (33) 0.2 ppb (3) N/A -1.0 μg/m3 (0) 33.0
 
Oct. 19, 2021, 2 a.m. 4.5 ppb (5) 0.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (34) 0.2 ppb (3) N/A 3.0 μg/m3 (13) 34.0
 
Oct. 19, 2021, 1 a.m. 4.9 ppb (5) 0.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 36.0 ppb (34) 0.19 ppb (3) N/A 2.0 μg/m3 (9) 34.0
 
Oct. 19, 2021, midnight 4.8 ppb (5) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (35) 0.2 ppb (3) N/A 1.0 μg/m3 (5) 35.0
 
Oct. 18, 2021, 11 p.m. 4.1 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (35) 0.18 ppb (3) N/A 1.0 μg/m3 (5) 35.0
 
Oct. 18, 2021, 10 p.m. 3.7 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (35) 0.18 ppb (3) N/A -2.0 μg/m3 (0) 35.0
 
Oct. 18, 2021, 9 p.m. 4.0 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (35) 0.18 ppb (3) N/A 0.0 μg/m3 (0) 35.0
 
Oct. 18, 2021, 8 p.m. 3.4 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (35) 0.18 ppb (3) N/A -1.0 μg/m3 (0) 35.0
 
Oct. 18, 2021, 7 p.m. 3.5 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (35) 0.17 ppb (3) N/A 0.0 μg/m3 (0) 35.0
 
Oct. 18, 2021, 6 p.m. 3.6 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (35) 0.18 ppb (3) N/A 0.0 μg/m3 (0) 35.0
 
Oct. 18, 2021, 5 p.m. 4.3 ppb (5) 1.3 ppb (2) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (34) 0.18 ppb (3) N/A -1.0 μg/m3 (0) 34.0
 
Oct. 18, 2021, 4 p.m. 6.3 ppb (6) 1.5 ppb (2) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (33) 0.22 ppb (3) N/A 2.0 μg/m3 (9) 33.0
 
Oct. 18, 2021, 3 p.m. 8.6 ppb (9) 2.1 ppb (2) N/A 7.0 ppb (7) N/A N/A 32.0 ppb (30) 0.23 ppb (3) N/A N/A 30.0
 
Oct. 18, 2021, 2 p.m. 8.7 ppb (9) 0.9 ppb (1) N/A 8.0 ppb (8) N/A N/A 32.0 ppb (30) 0.25 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Oct. 18, 2021, 1 p.m. 5.6 ppb (6) 0.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (33) 0.18 ppb (3) N/A 2.0 μg/m3 (9) 33.0
 
Oct. 18, 2021, noon 4.7 ppb (5) 0.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (34) 0.17 ppb (3) N/A 4.0 μg/m3 (17) 34.0
 
Oct. 18, 2021, 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 (9) 9.0
 
Oct. 18, 2021, 10 a.m. 3.1 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (35) 0.15 ppb (2) N/A 3.0 μg/m3 (13) 35.0
 
Oct. 18, 2021, 9 a.m. 2.0 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (36) 0.14 ppb (2) N/A 4.0 μg/m3 (17) 36.0
 
Oct. 18, 2021, 8 a.m. 1.8 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (37) 0.14 ppb (2) N/A 2.0 μg/m3 (9) 37.0
 
Oct. 18, 2021, 7 a.m. 2.6 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (37) 0.14 ppb (2) N/A 3.0 μg/m3 (13) 37.0
 
Oct. 18, 2021, 6 a.m. 2.4 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (37) 0.14 ppb (2) N/A 4.0 μg/m3 (17) 37.0
 
Oct. 18, 2021, 5 a.m. 2.1 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (37) 0.15 ppb (2) N/A 3.0 μg/m3 (13) 37.0
 
Oct. 18, 2021, 4 a.m. 3.1 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (35) 0.16 ppb (3) N/A 2.0 μg/m3 (9) 35.0
 
Oct. 18, 2021, 3 a.m. 3.6 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (35) 0.17 ppb (3) N/A 4.0 μg/m3 (17) 35.0
 
Oct. 18, 2021, 2 a.m. 2.8 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (36) 0.17 ppb (3) N/A 7.0 μg/m3 (30) 36.0
 
Oct. 18, 2021, 1 a.m. 2.7 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (37) 0.18 ppb (3) N/A 2.0 μg/m3 (9) 37.0
 
Oct. 18, 2021, midnight 2.3 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (36) 0.19 ppb (3) N/A 0.0 μg/m3 (0) 36.0
 
Oct. 17, 2021, 11 p.m. 2.1 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (36) 0.18 ppb (3) N/A 1.0 μg/m3 (5) 36.0
 
Oct. 17, 2021, 10 p.m. 2.1 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (36) 0.17 ppb (3) N/A 4.0 μg/m3 (17) 36.0
 
Oct. 17, 2021, 9 p.m. 1.9 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (36) 0.15 ppb (2) N/A 6.0 μg/m3 (25) 36.0
 
Oct. 17, 2021, 8 p.m. 2.4 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (34) 0.17 ppb (3) N/A 5.0 μg/m3 (21) 34.0
 
Oct. 17, 2021, 7 p.m. 2.9 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (34) 0.17 ppb (3) N/A 3.0 μg/m3 (13) 34.0
 
Oct. 17, 2021, 6 p.m. 3.4 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (35) 0.2 ppb (3) N/A 3.0 μg/m3 (13) 35.0
 
Oct. 17, 2021, 5 p.m. 2.8 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (35) 0.18 ppb (3) N/A 4.0 μg/m3 (17) 35.0
 
Oct. 17, 2021, 4 p.m. 3.5 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (34) 0.19 ppb (3) N/A 4.0 μg/m3 (17) 34.0
 
Oct. 17, 2021, 3 p.m. 4.3 ppb (5) 0.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 35.0 ppb (33) 0.19 ppb (3) N/A 5.0 μg/m3 (21) 33.0
 
Oct. 17, 2021, 2 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (34) 0.2 ppb (3) N/A 4.0 μg/m3 (17) 34.0
 
Oct. 17, 2021, 1 p.m. 3.2 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (39) 0.21 ppb (3) N/A 9.0 μg/m3 (38) 39.0
 
Oct. 17, 2021, noon 7.7 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (8) N/A N/A 37.0 ppb (35) 0.28 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
Oct. 17, 2021, 11 a.m. 12.8 ppb (13) 0.0 ppb (0) N/A 13.0 ppb (13) N/A N/A 29.0 ppb (27) 0.41 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Oct. 17, 2021, 10 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
 
Oct. 17, 2021, 9 a.m. 14.5 ppb (14) 2.7 ppb (3) N/A 12.0 ppb (12) N/A N/A 38.0 ppb (36) 0.28 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 17, 2021, 8 a.m. 10.6 ppb (10) 0.0 ppb (0) N/A 11.0 ppb (11) N/A N/A 43.0 ppb (40) 0.33 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Oct. 17, 2021, 7 a.m. 10.4 ppb (10) 1.0 ppb (1) N/A 9.0 ppb (9) N/A N/A 47.0 ppb (44) 0.31 ppb (4) N/A 7.0 μg/m3 (30) 44.0
 
Oct. 17, 2021, 6 a.m. 24.6 ppb (24) 0.1 ppb (1) N/A 24.0 ppb (23) N/A N/A 31.0 ppb (29) 0.6 ppb (7) N/A 15.0 μg/m3 (58) 58.0
 
Oct. 17, 2021, 5 a.m. 29.0 ppb (28) 0.1 ppb (1) N/A 29.0 ppb (28) N/A N/A 23.0 ppb (22) 0.59 ppb (7) N/A 17.0 μg/m3 (62) 62.0
 
Oct. 17, 2021, 4 a.m. 25.0 ppb (24) 0.0 ppb (0) N/A 25.0 ppb (24) N/A N/A 30.0 ppb (28) 0.71 ppb (8) N/A 21.0 μg/m3 (70) 70.0
 
Oct. 17, 2021, 3 a.m. 14.6 ppb (14) 0.0 ppb (0) N/A 15.0 ppb (15) N/A N/A 44.0 ppb (41) 0.45 ppb (6) N/A 17.0 μg/m3 (62) 62.0
 
Oct. 17, 2021, 2 a.m. 8.1 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (8) N/A N/A 55.0 ppb (51) 0.3 ppb (4) N/A 5.0 μg/m3 (21) 51.0
 
Oct. 17, 2021, 1 a.m. 7.5 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (8) N/A N/A 59.0 ppb (65) 0.29 ppb (4) N/A 2.0 μg/m3 (9) 65.0
 
Oct. 17, 2021, midnight 6.3 ppb (6) 0.1 ppb (1) N/A 6.0 ppb (6) N/A N/A 61.0 ppb (71) 0.29 ppb (4) N/A 7.0 μg/m3 (30) 71.0
 
Oct. 16, 2021, 11 p.m. 7.8 ppb (8) 0.4 ppb (1) N/A 7.0 ppb (7) N/A N/A 63.0 ppb (78) 0.32 ppb (4) N/A 14.0 μg/m3 (55) 78.0
 
Oct. 16, 2021, 10 p.m. 15.7 ppb (15) 1.4 ppb (2) N/A 14.0 ppb (14) N/A N/A 58.0 ppb (61) 0.4 ppb (5) N/A 9.0 μg/m3 (38) 61.0
 
Oct. 16, 2021, 9 p.m. 22.5 ppb (22) 2.8 ppb (3) N/A 20.0 ppb (19) N/A N/A 51.0 ppb (48) 0.47 ppb (6) N/A 21.0 μg/m3 (70) 70.0
 
Oct. 16, 2021, 8 p.m. 20.6 ppb (20) 2.9 ppb (3) N/A 18.0 ppb (17) N/A N/A 48.0 ppb (45) 0.48 ppb (6) N/A 8.0 μg/m3 (34) 45.0
 
Oct. 16, 2021, 7 p.m. 16.4 ppb (16) 3.0 ppb (3) N/A 13.0 ppb (13) N/A N/A 43.0 ppb (40) 0.36 ppb (5) N/A 8.0 μg/m3 (34) 40.0
 
Oct. 16, 2021, 6 p.m. 19.5 ppb (19) 4.8 ppb (5) N/A 15.0 ppb (15) N/A N/A 31.0 ppb (29) 0.35 ppb (4) N/A 7.0 μg/m3 (30) 30.0
 
Oct. 16, 2021, 5 p.m. 13.9 ppb (14) 3.0 ppb (3) N/A 11.0 ppb (11) N/A N/A 32.0 ppb (30) 0.31 ppb (4) N/A 6.0 μg/m3 (25) 30.0
 
Oct. 16, 2021, 4 p.m. 40.5 ppb (39) 14.6 ppb (14) N/A 26.0 ppb (25) N/A N/A 16.0 ppb (15) 0.48 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
Oct. 16, 2021, 3 p.m. 45.0 ppb (43) 17.1 ppb (17) N/A 28.0 ppb (27) N/A N/A 8.0 ppb (8) 0.62 ppb (7) N/A 13.0 μg/m3 (53) 53.0
 
Oct. 16, 2021, 2 p.m. 28.1 ppb (27) 2.2 ppb (3) N/A 26.0 ppb (25) N/A N/A 7.0 ppb (7) 0.43 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
Oct. 16, 2021, 1 p.m. 31.5 ppb (30) 3.8 ppb (4) N/A 28.0 ppb (27) N/A N/A 4.0 ppb (4) 0.53 ppb (6) N/A 8.0 μg/m3 (34) 34.0
 
Oct. 16, 2021, noon 27.4 ppb (26) 1.7 ppb (2) N/A 26.0 ppb (25) N/A N/A 4.0 ppb (4) 0.5 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
Oct. 16, 2021, 11 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
 
Oct. 16, 2021, 10 a.m. 24.7 ppb (24) 1.7 ppb (2) N/A 23.0 ppb (22) N/A N/A 8.0 ppb (8) 0.51 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 16, 2021, 9 a.m. 15.8 ppb (15) 0.1 ppb (1) N/A 16.0 ppb (16) N/A N/A 16.0 ppb (15) 0.31 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Oct. 16, 2021, 8 a.m. 24.1 ppb (23) 1.1 ppb (2) N/A 23.0 ppb (22) N/A N/A 13.0 ppb (13) 0.43 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Oct. 16, 2021, 7 a.m. 39.8 ppb (38) 5.8 ppb (6) N/A 34.0 ppb (33) N/A N/A 7.0 ppb (7) 0.62 ppb (7) N/A 10.0 μg/m3 (42) 42.0
 
Oct. 16, 2021, 6 a.m. 28.9 ppb (28) 0.2 ppb (1) N/A 29.0 ppb (28) N/A N/A 12.0 ppb (12) 0.56 ppb (7) N/A 11.0 μg/m3 (46) 46.0
 
Oct. 16, 2021, 5 a.m. 35.7 ppb (34) 1.9 ppb (2) N/A 34.0 ppb (33) N/A N/A 8.0 ppb (8) 0.66 ppb (8) N/A 16.0 μg/m3 (60) 60.0
 
Oct. 16, 2021, 4 a.m. 39.7 ppb (38) 5.7 ppb (6) N/A 34.0 ppb (33) N/A N/A 4.0 ppb (4) 0.78 ppb (10) N/A 19.0 μg/m3 (66) 66.0
 
Oct. 16, 2021, 3 a.m. 29.3 ppb (28) 1.2 ppb (2) N/A 28.0 ppb (27) N/A N/A 10.0 ppb (10) 0.55 ppb (7) N/A 11.0 μg/m3 (46) 46.0
 
Oct. 16, 2021, 2 a.m. 19.8 ppb (19) 0.2 ppb (1) N/A 20.0 ppb (19) N/A N/A 20.0 ppb (19) 0.43 ppb (5) N/A 7.0 μg/m3 (30) 30.0
 
Oct. 16, 2021, 1 a.m. 17.0 ppb (17) 0.3 ppb (1) N/A 17.0 ppb (17) N/A N/A 28.0 ppb (26) 0.39 ppb (5) N/A 3.0 μg/m3 (13) 26.0
 
Oct. 16, 2021, midnight 13.2 ppb (13) 0.9 ppb (1) N/A 12.0 ppb (12) N/A N/A 38.0 ppb (36) 0.34 ppb (4) N/A 4.0 μg/m3 (17) 36.0
 
Oct. 15, 2021, 11 p.m. 11.4 ppb (11) 1.4 ppb (2) N/A 10.0 ppb (10) N/A N/A 45.0 ppb (42) 0.29 ppb (4) N/A 2.0 μg/m3 (9) 42.0
 
Oct. 15, 2021, 10 p.m. 8.2 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (7) N/A N/A 48.0 ppb (45) 0.23 ppb (3) N/A 3.0 μg/m3 (13) 45.0
 
Oct. 15, 2021, 9 p.m. 10.0 ppb (10) 1.7 ppb (2) N/A 8.0 ppb (8) N/A N/A 41.0 ppb (38) 0.24 ppb (3) N/A 5.0 μg/m3 (21) 38.0
 
Oct. 15, 2021, 8 p.m. 13.9 ppb (14) 3.1 ppb (3) N/A 11.0 ppb (11) N/A N/A 34.0 ppb (32) 0.27 ppb (4) N/A 7.0 μg/m3 (30) 32.0
 
Oct. 15, 2021, 7 p.m. 17.7 ppb (17) 5.0 ppb (5) N/A 13.0 ppb (13) N/A N/A 29.0 ppb (27) 0.29 ppb (4) N/A 7.0 μg/m3 (30) 30.0
 
Oct. 15, 2021, 6 p.m. 15.3 ppb (15) 4.7 ppb (5) N/A 11.0 ppb (11) N/A N/A 27.0 ppb (25) 0.25 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Oct. 15, 2021, 5 p.m. 28.5 ppb (27) 12.2 ppb (12) N/A 16.0 ppb (16) N/A N/A 14.0 ppb (13) 0.32 ppb (4) N/A 7.0 μg/m3 (30) 30.0
 
Oct. 15, 2021, 4 p.m. 44.7 ppb (43) 22.7 ppb (22) N/A 22.0 ppb (21) N/A N/A 9.0 ppb (9) 0.46 ppb (6) N/A 10.0 μg/m3 (42) 43.0
 
Oct. 15, 2021, 3 p.m. 83.5 ppb (83) 55.6 ppb (53) N/A 28.0 ppb (27) N/A N/A 3.0 ppb (3) 0.88 ppb (11) N/A 14.0 μg/m3 (55) 83.0
 
Oct. 15, 2021, 2 p.m. 58.9 ppb (57) 34.8 ppb (33) N/A 24.0 ppb (23) N/A N/A 2.0 ppb (2) 0.69 ppb (8) N/A 10.0 μg/m3 (42) 57.0
 
Oct. 15, 2021, 1 p.m. 43.5 ppb (42) 19.5 ppb (19) N/A 24.0 ppb (23) N/A N/A 1.0 ppb (1) 0.59 ppb (7) N/A 9.0 μg/m3 (38) 42.0
 
Oct. 15, 2021, noon 26.6 ppb (26) 4.6 ppb (5) N/A 22.0 ppb (21) N/A N/A 1.0 ppb (1) 0.46 ppb (6) N/A 7.0 μg/m3 (30) 30.0
 
Oct. 15, 2021, 11 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
 
Oct. 15, 2021, 10 a.m. 46.8 ppb (45) 21.7 ppb (21) N/A 25.0 ppb (24) N/A N/A 2.0 ppb (2) 0.61 ppb (7) N/A 28.0 μg/m3 (85) 85.0
 
Oct. 15, 2021, 9 a.m. 35.0 ppb (34) 10.1 ppb (10) N/A 25.0 ppb (24) N/A N/A 1.0 ppb (1) 0.52 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
Oct. 15, 2021, 8 a.m. 29.9 ppb (29) 5.3 ppb (5) N/A 25.0 ppb (24) N/A N/A 2.0 ppb (2) 0.43 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
Oct. 15, 2021, 7 a.m. 43.9 ppb (42) 15.6 ppb (15) N/A 28.0 ppb (27) N/A N/A 2.0 ppb (2) 0.69 ppb (8) N/A 11.0 μg/m3 (46) 46.0
 
Oct. 15, 2021, 6 a.m. 38.4 ppb (37) 10.5 ppb (10) N/A 28.0 ppb (27) N/A N/A 3.0 ppb (3) 0.7 ppb (8) N/A 11.0 μg/m3 (46) 46.0
 
Oct. 15, 2021, 5 a.m. 30.4 ppb (29) 4.6 ppb (5) N/A 26.0 ppb (25) N/A N/A 3.0 ppb (3) 0.62 ppb (7) N/A 16.0 μg/m3 (60) 60.0
 
Oct. 15, 2021, 4 a.m. 29.4 ppb (28) 3.2 ppb (4) N/A 26.0 ppb (25) N/A N/A 5.0 ppb (5) 0.58 ppb (7) N/A 11.0 μg/m3 (46) 46.0
 
Oct. 15, 2021, 3 a.m. 17.2 ppb (17) 0.4 ppb (1) N/A 17.0 ppb (17) N/A N/A 15.0 ppb (14) 0.36 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Oct. 15, 2021, 2 a.m. 13.2 ppb (13) 0.9 ppb (1) N/A 12.0 ppb (12) N/A N/A 21.0 ppb (20) 0.26 ppb (4) N/A 4.0 μg/m3 (17) 20.0
 
Oct. 15, 2021, 1 a.m. 9.1 ppb (9) 0.5 ppb (1) N/A 9.0 ppb (9) N/A N/A 27.0 ppb (25) 0.26 ppb (4) N/A 3.0 μg/m3 (13) 25.0
 
Oct. 15, 2021, midnight 6.1 ppb (6) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A 31.0 ppb (29) 0.22 ppb (3) N/A 5.0 μg/m3 (21) 29.0
 
Oct. 14, 2021, 11 p.m. 5.6 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 34.0 ppb (32) 0.22 ppb (3) N/A 7.0 μg/m3 (30) 32.0
 
Oct. 14, 2021, 10 p.m. 6.2 ppb (6) 1.6 ppb (2) N/A 5.0 ppb (5) N/A N/A 32.0 ppb (30) 0.22 ppb (3) N/A 6.0 μg/m3 (25) 30.0
 
Oct. 14, 2021, 9 p.m. 6.8 ppb (7) 1.7 ppb (2) N/A 5.0 ppb (5) N/A N/A 33.0 ppb (31) 0.23 ppb (3) N/A 4.0 μg/m3 (17) 31.0
 
Oct. 14, 2021, 8 p.m. 6.3 ppb (6) 1.4 ppb (2) N/A 5.0 ppb (5) N/A N/A 36.0 ppb (34) 0.22 ppb (3) N/A 0.0 μg/m3 (0) 34.0
 
Oct. 14, 2021, 7 p.m. 10.5 ppb (10) 3.0 ppb (3) N/A 8.0 ppb (8) N/A N/A 32.0 ppb (30) 0.2 ppb (3) N/A 3.0 μg/m3 (13) 30.0
 
Oct. 14, 2021, 6 p.m. 22.4 ppb (22) 8.7 ppb (9) N/A 14.0 ppb (14) N/A N/A 21.0 ppb (20) 0.24 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Oct. 14, 2021, 5 p.m. 25.8 ppb (25) 11.9 ppb (12) N/A 14.0 ppb (14) N/A N/A 17.0 ppb (16) 0.26 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 14, 2021, 4 p.m. 27.2 ppb (26) 13.4 ppb (13) N/A 14.0 ppb (14) N/A N/A 15.0 ppb (14) 0.27 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
Oct. 14, 2021, 3 p.m. 39.0 ppb (37) 23.2 ppb (22) N/A 16.0 ppb (16) N/A N/A 8.0 ppb (8) 0.36 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
Oct. 14, 2021, 2 p.m. 34.5 ppb (33) 12.3 ppb (12) N/A 22.0 ppb (21) N/A N/A 2.0 ppb (2) 0.45 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 14, 2021, 1 p.m. 40.2 ppb (38) 17.8 ppb (17) N/A 22.0 ppb (21) N/A N/A 2.0 ppb (2) 0.49 ppb (6) N/A 7.0 μg/m3 (30) 38.0
 
Oct. 14, 2021, noon 43.6 ppb (42) 19.6 ppb (19) N/A 24.0 ppb (23) N/A N/A 2.0 ppb (2) 0.53 ppb (6) N/A 9.0 μg/m3 (38) 42.0
 
Oct. 14, 2021, 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 (34) 34.0
 
Oct. 14, 2021, 10 a.m. 17.1 ppb (17) 1.8 ppb (2) N/A 15.0 ppb (15) N/A N/A 10.0 ppb (10) 0.26 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
Oct. 14, 2021, 9 a.m. 17.6 ppb (17) 0.3 ppb (1) N/A 17.0 ppb (17) N/A N/A 9.0 ppb (9) 0.3 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Oct. 14, 2021, 8 a.m. 28.2 ppb (27) 3.1 ppb (3) N/A 25.0 ppb (24) N/A N/A 4.0 ppb (4) 0.44 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Oct. 14, 2021, 7 a.m. 21.8 ppb (21) 1.3 ppb (2) N/A 21.0 ppb (20) N/A N/A 9.0 ppb (9) 0.44 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
Oct. 14, 2021, 6 a.m. 10.9 ppb (11) 0.1 ppb (1) N/A 11.0 ppb (11) N/A N/A 19.0 ppb (18) 0.25 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Oct. 14, 2021, 5 a.m. 13.3 ppb (13) 0.1 ppb (1) N/A 13.0 ppb (13) N/A N/A 19.0 ppb (18) 0.3 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 14, 2021, 4 a.m. 7.4 ppb (7) 1.1 ppb (2) N/A 6.0 ppb (6) N/A N/A 27.0 ppb (25) 0.2 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Oct. 14, 2021, 3 a.m. 6.0 ppb (6) 0.1 ppb (1) N/A 6.0 ppb (6) N/A N/A 28.0 ppb (26) 0.19 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Oct. 14, 2021, 2 a.m. 4.8 ppb (5) 0.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 30.0 ppb (28) 0.18 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Oct. 14, 2021, 1 a.m. 5.3 ppb (5) 0.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 30.0 ppb (28) 0.19 ppb (3) N/A 5.0 μg/m3 (21) 28.0
 
Oct. 14, 2021, midnight 4.2 ppb (4) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 31.0 ppb (29) 0.18 ppb (3) N/A 3.0 μg/m3 (13) 29.0
 
Oct. 13, 2021, 11 p.m. 3.7 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (30) 0.17 ppb (3) N/A 5.0 μg/m3 (21) 30.0
 
Oct. 13, 2021, 10 p.m. 4.1 ppb (4) 1.2 ppb (2) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (30) 0.17 ppb (3) N/A 3.0 μg/m3 (13) 30.0
 
Oct. 13, 2021, 9 p.m. 3.7 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (32) 0.17 ppb (3) N/A 0.0 μg/m3 (0) 32.0
 
Oct. 13, 2021, 8 p.m. 3.3 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 33.0 ppb (31) 0.18 ppb (3) N/A 1.0 μg/m3 (5) 31.0
 
Oct. 13, 2021, 7 p.m. 4.0 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 33.0 ppb (31) 0.2 ppb (3) N/A 3.0 μg/m3 (13) 31.0
 
Oct. 13, 2021, 6 p.m. 4.7 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 32.0 ppb (30) 0.21 ppb (3) N/A 3.0 μg/m3 (13) 30.0
 
Oct. 13, 2021, 5 p.m. 5.2 ppb (5) 1.5 ppb (2) N/A 4.0 ppb (4) N/A N/A 31.0 ppb (29) 0.23 ppb (3) N/A N/A 29.0
 
Oct. 13, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
Oct. 13, 2021, 3 p.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
 
Oct. 13, 2021, 2 p.m. 13.4 ppb (13) 2.0 ppb (2) N/A 11.0 ppb (11) N/A N/A 23.0 ppb (22) 0.37 ppb (5) N/A 4.0 μg/m3 (17) 22.0
 
Oct. 13, 2021, 1 p.m. 13.8 ppb (14) 2.5 ppb (3) N/A 11.0 ppb (11) N/A N/A 22.0 ppb (21) 0.34 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Oct. 13, 2021, noon 14.7 ppb (14) 3.2 ppb (4) N/A 12.0 ppb (12) N/A N/A 19.0 ppb (18) 0.35 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Oct. 13, 2021, 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 (34) 34.0
 
Oct. 13, 2021, 10 a.m. 7.7 ppb (8) 1.4 ppb (2) N/A 6.0 ppb (6) N/A N/A 24.0 ppb (23) 0.28 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
Oct. 13, 2021, 9 a.m. 6.3 ppb (6) 3.2 ppb (4) N/A 3.0 ppb (3) N/A N/A 28.0 ppb (26) 0.26 ppb (4) N/A 7.0 μg/m3 (30) 30.0
 
Oct. 13, 2021, 8 a.m. 5.4 ppb (6) 1.8 ppb (2) N/A 4.0 ppb (4) N/A N/A 28.0 ppb (26) 0.26 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 13, 2021, 7 a.m. 8.2 ppb (8) 1.4 ppb (2) N/A 7.0 ppb (7) N/A N/A 24.0 ppb (23) 0.29 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 13, 2021, 6 a.m. 8.1 ppb (8) 2.1 ppb (2) N/A 6.0 ppb (6) N/A N/A 25.0 ppb (24) 0.31 ppb (4) N/A 7.0 μg/m3 (30) 30.0
 
Oct. 13, 2021, 5 a.m. 7.1 ppb (7) 1.4 ppb (2) N/A 6.0 ppb (6) N/A N/A 27.0 ppb (25) 0.31 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Oct. 13, 2021, 4 a.m. 7.7 ppb (8) 1.4 ppb (2) N/A 6.0 ppb (6) N/A N/A 28.0 ppb (26) 0.33 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
Oct. 13, 2021, 3 a.m. 7.6 ppb (8) 1.5 ppb (2) N/A 6.0 ppb (6) N/A N/A 29.0 ppb (27) 0.31 ppb (4) N/A 7.0 μg/m3 (30) 30.0
 
Oct. 13, 2021, 2 a.m. 7.5 ppb (8) 1.4 ppb (2) N/A 6.0 ppb (6) N/A N/A 29.0 ppb (27) 0.32 ppb (4) N/A 5.0 μg/m3 (21) 27.0
 
Oct. 13, 2021, 1 a.m. 7.2 ppb (7) 1.6 ppb (2) N/A 6.0 ppb (6) N/A N/A 30.0 ppb (28) 0.34 ppb (4) N/A 6.0 μg/m3 (25) 28.0
 
Oct. 13, 2021, midnight 5.8 ppb (6) 2.1 ppb (2) N/A 4.0 ppb (4) N/A N/A 31.0 ppb (29) 0.31 ppb (4) N/A 4.0 μg/m3 (17) 29.0
 
Oct. 12, 2021, 11 p.m. 5.8 ppb (6) 2.5 ppb (3) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (30) 0.29 ppb (4) N/A 1.0 μg/m3 (5) 30.0
 
Oct. 12, 2021, 10 p.m. 5.8 ppb (6) 2.3 ppb (3) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (31) 0.31 ppb (4) N/A 0.0 μg/m3 (0) 31.0
 
Oct. 12, 2021, 9 p.m. 5.9 ppb (6) 2.3 ppb (3) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (31) 0.32 ppb (4) N/A 1.0 μg/m3 (5) 31.0
 
Oct. 12, 2021, 8 p.m. 5.9 ppb (6) 2.2 ppb (3) N/A 4.0 ppb (4) N/A N/A 35.0 ppb (33) 0.28 ppb (4) N/A 4.0 μg/m3 (17) 33.0
 
Oct. 12, 2021, 7 p.m. 6.4 ppb (7) 2.5 ppb (3) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (32) 0.27 ppb (4) N/A 3.0 μg/m3 (13) 32.0
 
Oct. 12, 2021, 6 p.m. 8.2 ppb (8) 3.3 ppb (4) N/A 5.0 ppb (5) N/A N/A 32.0 ppb (30) 0.26 ppb (4) N/A 0.0 μg/m3 (0) 30.0
 
Oct. 12, 2021, 5 p.m. 8.4 ppb (8) 4.0 ppb (4) N/A 5.0 ppb (5) N/A N/A 31.0 ppb (29) 0.24 ppb (3) N/A 0.0 μg/m3 (0) 29.0
 
Oct. 12, 2021, 4 p.m. 9.0 ppb (9) 3.4 ppb (4) N/A 6.0 ppb (6) N/A N/A 29.0 ppb (27) 0.24 ppb (3) N/A 0.0 μg/m3 (0) 27.0
 
Oct. 12, 2021, 3 p.m. 10.8 ppb (11) 3.4 ppb (4) N/A 7.0 ppb (7) N/A N/A 28.0 ppb (26) 0.25 ppb (3) N/A 0.0 μg/m3 (0) 26.0
 
Oct. 12, 2021, 2 p.m. 7.6 ppb (8) 2.2 ppb (3) N/A 5.0 ppb (5) N/A N/A 30.0 ppb (28) 0.24 ppb (3) N/A 2.0 μg/m3 (9) 28.0
 
Oct. 12, 2021, 1 p.m. 6.3 ppb (6) 2.1 ppb (2) N/A 4.0 ppb (4) N/A N/A 31.0 ppb (29) 0.24 ppb (3) N/A 3.0 μg/m3 (13) 29.0
 
Oct. 12, 2021, noon 6.2 ppb (6) 2.2 ppb (3) N/A 4.0 ppb (4) N/A N/A 31.0 ppb (29) 0.24 ppb (3) N/A 2.0 μg/m3 (9) 29.0