ID: 2985

AQSQID: 421010076

Site Name: Mon

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

Updated: Sept. 21, 2021, 4:06 p.m.

Location: Philadelphia (W Park), PA

Reporting: True, Located: True

Current AQI: 32.0

Philadelphia (W Park) PA, US: 39.988842, -75.207205

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 21, 2021, 2 p.m. N/A N/A N/A 28.0 ppb (27) N/A N/A N/A 0.57 ppb (7) N/A 7.5 μg/m3 (32) 32.0
 
Sept. 21, 2021, 1 p.m. N/A N/A N/A 23.0 ppb (22) N/A N/A N/A 0.58 ppb (7) N/A 6.7 μg/m3 (28) 28.0
 
Sept. 21, 2021, noon N/A N/A N/A 20.0 ppb (19) N/A N/A N/A 0.65 ppb (8) N/A 6.5 μg/m3 (28) 28.0
 
Sept. 21, 2021, 11 a.m. N/A N/A N/A 14.0 ppb (14) N/A N/A N/A 0.38 ppb (5) N/A 5.1 μg/m3 (22) 22.0
 
Sept. 21, 2021, 10 a.m. N/A N/A N/A 16.0 ppb (16) N/A N/A N/A 0.34 ppb (4) N/A 5.4 μg/m3 (23) 23.0
 
Sept. 21, 2021, 9 a.m. N/A N/A N/A 11.0 ppb (11) N/A N/A N/A 0.3 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 21, 2021, 8 a.m. N/A N/A N/A 8.0 ppb (8) N/A N/A N/A 0.28 ppb (4) N/A 5.4 μg/m3 (23) 23.0
 
Sept. 21, 2021, 7 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A N/A 0.27 ppb (4) N/A 4.9 μg/m3 (21) 21.0
 
Sept. 21, 2021, 6 a.m. N/A N/A N/A 10.0 ppb (10) N/A N/A N/A 0.33 ppb (4) N/A 4.8 μg/m3 (20) 20.0
 
Sept. 21, 2021, 5 a.m. N/A N/A N/A 8.0 ppb (8) N/A N/A N/A 0.31 ppb (4) N/A 4.7 μg/m3 (20) 20.0
 
Sept. 21, 2021, 4 a.m. N/A N/A N/A 8.0 ppb (8) N/A N/A N/A 0.32 ppb (4) N/A 4.5 μg/m3 (19) 19.0
 
Sept. 21, 2021, 3 a.m. N/A N/A N/A 8.0 ppb (8) N/A N/A N/A 0.33 ppb (4) N/A 4.6 μg/m3 (20) 20.0
 
Sept. 21, 2021, 2 a.m. N/A N/A N/A 11.0 ppb (11) N/A N/A N/A 0.41 ppb (5) N/A 4.9 μg/m3 (21) 21.0
 
Sept. 21, 2021, 1 a.m. N/A N/A N/A 12.0 ppb (12) N/A N/A N/A 0.47 ppb (6) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 21, 2021, midnight N/A N/A N/A N/A N/A N/A N/A 0.52 ppb (6) N/A 4.7 μg/m3 (20) 20.0
 
Sept. 20, 2021, 11 p.m. N/A N/A N/A 12.0 ppb (12) N/A N/A N/A 0.52 ppb (6) N/A 4.7 μg/m3 (20) 20.0
 
Sept. 20, 2021, 10 p.m. N/A N/A N/A 16.0 ppb (16) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 20, 2021, 9 p.m. N/A N/A N/A 12.0 ppb (12) N/A N/A N/A 0.49 ppb (6) N/A 5.4 μg/m3 (23) 23.0
 
Sept. 20, 2021, 8 p.m. N/A N/A N/A 16.0 ppb (16) N/A N/A N/A 0.53 ppb (6) N/A 4.9 μg/m3 (21) 21.0
 
Sept. 20, 2021, 7 p.m. N/A N/A N/A 14.0 ppb (14) N/A N/A N/A 0.51 ppb (6) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 20, 2021, 6 p.m. N/A N/A N/A 15.0 ppb (15) N/A N/A N/A 0.5 ppb (6) N/A 5.3 μg/m3 (23) 23.0
 
Sept. 20, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A 0.48 ppb (6) N/A 5.6 μg/m3 (24) 24.0
 
Sept. 20, 2021, 4 p.m. N/A N/A N/A 18.0 ppb (17) N/A N/A N/A 0.47 ppb (6) N/A 5.9 μg/m3 (25) 25.0
 
Sept. 20, 2021, 3 p.m. N/A N/A N/A 14.0 ppb (14) N/A N/A N/A 0.49 ppb (6) N/A 5.9 μg/m3 (25) 25.0
 
Sept. 20, 2021, 2 p.m. N/A N/A N/A 19.0 ppb (18) N/A N/A N/A 0.51 ppb (6) N/A 6.9 μg/m3 (29) 29.0
 
Sept. 20, 2021, 1 p.m. N/A N/A N/A 24.0 ppb (23) N/A N/A N/A 0.69 ppb (8) N/A 10.4 μg/m3 (44) 44.0
 
Sept. 20, 2021, noon N/A N/A N/A 22.0 ppb (21) N/A N/A N/A 0.83 ppb (10) N/A 10.5 μg/m3 (44) 44.0
 
Sept. 20, 2021, 11 a.m. N/A N/A N/A 12.0 ppb (12) N/A N/A N/A 0.49 ppb (6) N/A 8.0 μg/m3 (34) 34.0
 
Sept. 20, 2021, 10 a.m. N/A N/A N/A 10.0 ppb (10) N/A N/A N/A 0.39 ppb (5) N/A 7.8 μg/m3 (33) 33.0
 
Sept. 20, 2021, 9 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A N/A 0.35 ppb (4) N/A 7.6 μg/m3 (32) 32.0
 
Sept. 20, 2021, 8 a.m. N/A N/A N/A 10.0 ppb (10) N/A N/A N/A 0.42 ppb (5) N/A 7.5 μg/m3 (32) 32.0
 
Sept. 20, 2021, 7 a.m. N/A N/A N/A 12.0 ppb (12) N/A N/A N/A 0.45 ppb (6) N/A 7.8 μg/m3 (33) 33.0
 
Sept. 20, 2021, 6 a.m. N/A N/A N/A 9.0 ppb (9) N/A N/A N/A 0.41 ppb (5) N/A 6.8 μg/m3 (29) 29.0
 
Sept. 20, 2021, 5 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A N/A 0.33 ppb (4) N/A 6.9 μg/m3 (29) 29.0
 
Sept. 20, 2021, 4 a.m. N/A N/A N/A 10.0 ppb (10) N/A N/A N/A 0.37 ppb (5) N/A 7.3 μg/m3 (31) 31.0
 
Sept. 20, 2021, 3 a.m. N/A N/A N/A 12.0 ppb (12) N/A N/A N/A 0.39 ppb (5) N/A 6.7 μg/m3 (28) 28.0
 
Sept. 20, 2021, 2 a.m. N/A N/A N/A 9.0 ppb (9) N/A N/A N/A 0.38 ppb (5) N/A 5.8 μg/m3 (25) 25.0
 
Sept. 20, 2021, 1 a.m. N/A N/A N/A 16.0 ppb (16) N/A N/A N/A 0.52 ppb (6) N/A 5.6 μg/m3 (24) 24.0
 
Sept. 20, 2021, midnight N/A N/A N/A 7.0 ppb (7) N/A N/A N/A 0.34 ppb (4) N/A 4.5 μg/m3 (19) 19.0
 
Sept. 19, 2021, 11 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.43 ppb (5) N/A 3.8 μg/m3 (16) 16.0
 
Sept. 19, 2021, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 3.3 μg/m3 (14) 14.0
 
Sept. 19, 2021, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 0.21 ppb (3) N/A 3.3 μg/m3 (14) 14.0
 
Sept. 19, 2021, 8 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.27 ppb (4) N/A 3.5 μg/m3 (15) 15.0
 
Sept. 19, 2021, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 0.19 ppb (3) N/A 3.5 μg/m3 (15) 15.0
 
Sept. 19, 2021, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.22 ppb (3) N/A 3.6 μg/m3 (16) 16.0
 
Sept. 19, 2021, 5 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.29 ppb (4) N/A 3.9 μg/m3 (17) 17.0
 
Sept. 19, 2021, 4 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.28 ppb (4) N/A 3.9 μg/m3 (17) 17.0
 
Sept. 19, 2021, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.26 ppb (4) N/A 4.1 μg/m3 (18) 18.0
 
Sept. 19, 2021, 2 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.24 ppb (3) N/A 4.4 μg/m3 (19) 19.0
 
Sept. 19, 2021, 1 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 19, 2021, noon N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.26 ppb (4) N/A 7.1 μg/m3 (30) 30.0
 
Sept. 19, 2021, 11 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.25 ppb (3) N/A 7.8 μg/m3 (33) 33.0
 
Sept. 19, 2021, 10 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.26 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 19, 2021, 9 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.29 ppb (4) N/A 10.7 μg/m3 (45) 45.0
 
Sept. 19, 2021, 8 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.36 ppb (5) N/A 9.4 μg/m3 (40) 40.0
 
Sept. 19, 2021, 7 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.36 ppb (5) N/A 10.3 μg/m3 (43) 43.0
 
Sept. 19, 2021, 6 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.42 ppb (5) N/A 13.3 μg/m3 (54) 54.0
 
Sept. 19, 2021, 5 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.43 ppb (5) N/A 13.8 μg/m3 (55) 55.0
 
Sept. 19, 2021, 4 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A N/A 0.53 ppb (6) N/A 13.6 μg/m3 (55) 55.0
 
Sept. 19, 2021, 3 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.41 ppb (5) N/A 12.8 μg/m3 (53) 53.0
 
Sept. 19, 2021, 2 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A N/A 0.44 ppb (5) N/A 12.4 μg/m3 (52) 52.0
 
Sept. 19, 2021, 1 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A N/A 0.47 ppb (6) N/A 12.4 μg/m3 (52) 52.0
 
Sept. 19, 2021, midnight N/A N/A N/A N/A N/A N/A N/A 0.43 ppb (5) N/A 11.7 μg/m3 (49) 49.0
 
Sept. 18, 2021, 11 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.38 ppb (5) N/A 11.1 μg/m3 (47) 47.0
 
Sept. 18, 2021, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 10.8 μg/m3 (46) 46.0
 
Sept. 18, 2021, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.37 ppb (5) N/A 10.4 μg/m3 (44) 44.0
 
Sept. 18, 2021, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.34 ppb (4) N/A 9.8 μg/m3 (41) 41.0
 
Sept. 18, 2021, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.31 ppb (4) N/A 9.2 μg/m3 (39) 39.0
 
Sept. 18, 2021, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.33 ppb (4) N/A 9.4 μg/m3 (40) 40.0
 
Sept. 18, 2021, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.33 ppb (4) N/A 9.3 μg/m3 (39) 39.0
 
Sept. 18, 2021, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.33 ppb (4) N/A 9.3 μg/m3 (39) 39.0
 
Sept. 18, 2021, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.33 ppb (4) N/A 9.4 μg/m3 (40) 40.0
 
Sept. 18, 2021, 2 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.33 ppb (4) N/A 10.2 μg/m3 (43) 43.0
 
Sept. 18, 2021, 1 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.34 ppb (4) N/A 10.9 μg/m3 (46) 46.0
 
Sept. 18, 2021, noon N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.38 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 18, 2021, 11 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.39 ppb (5) N/A 10.6 μg/m3 (45) 45.0
 
Sept. 18, 2021, 10 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.37 ppb (5) N/A 11.3 μg/m3 (48) 48.0
 
Sept. 18, 2021, 9 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.36 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 18, 2021, 8 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.38 ppb (5) N/A 12.5 μg/m3 (52) 52.0
 
Sept. 18, 2021, 7 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.38 ppb (5) N/A 12.3 μg/m3 (52) 52.0
 
Sept. 18, 2021, 6 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A N/A 0.44 ppb (5) N/A 12.4 μg/m3 (52) 52.0
 
Sept. 18, 2021, 5 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A N/A 0.47 ppb (6) N/A 12.9 μg/m3 (53) 53.0
 
Sept. 18, 2021, 4 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A N/A 0.48 ppb (6) N/A 13.0 μg/m3 (53) 53.0
 
Sept. 18, 2021, 3 a.m. N/A N/A N/A 8.0 ppb (8) N/A N/A N/A 0.45 ppb (6) N/A 12.1 μg/m3 (51) 51.0
 
Sept. 18, 2021, 2 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A N/A 0.43 ppb (5) N/A 11.8 μg/m3 (50) 50.0
 
Sept. 18, 2021, 1 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A N/A 0.42 ppb (5) N/A 12.2 μg/m3 (52) 52.0
 
Sept. 18, 2021, midnight N/A N/A N/A 9.0 ppb (9) N/A N/A N/A 0.45 ppb (6) N/A 12.9 μg/m3 (53) 53.0
 
Sept. 17, 2021, 11 p.m. N/A N/A N/A 16.0 ppb (16) N/A N/A N/A 0.55 ppb (7) N/A 13.3 μg/m3 (54) 54.0
 
Sept. 17, 2021, 10 p.m. N/A N/A N/A 15.0 ppb (15) N/A N/A N/A N/A N/A 12.8 μg/m3 (53) 53.0
 
Sept. 17, 2021, 9 p.m. N/A N/A N/A 13.0 ppb (13) N/A N/A N/A 0.49 ppb (6) N/A 12.6 μg/m3 (53) 53.0
 
Sept. 17, 2021, 8 p.m. N/A N/A N/A 19.0 ppb (18) N/A N/A N/A 0.65 ppb (8) N/A 10.8 μg/m3 (46) 46.0
 
Sept. 17, 2021, 7 p.m. N/A N/A N/A 22.0 ppb (21) N/A N/A N/A 0.62 ppb (7) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 17, 2021, 6 p.m. N/A N/A N/A 23.0 ppb (22) N/A N/A N/A 0.72 ppb (8) N/A 10.3 μg/m3 (43) 43.0
 
Sept. 17, 2021, 5 p.m. N/A N/A N/A 17.0 ppb (17) N/A N/A N/A 0.6 ppb (7) N/A 8.5 μg/m3 (36) 36.0
 
Sept. 17, 2021, 4 p.m. N/A N/A N/A 20.0 ppb (19) N/A N/A N/A 0.61 ppb (7) N/A 7.0 μg/m3 (30) 30.0
 
Sept. 17, 2021, 3 p.m. N/A N/A N/A 18.0 ppb (17) N/A N/A N/A 0.6 ppb (7) N/A 5.8 μg/m3 (25) 25.0
 
Sept. 17, 2021, 2 p.m. N/A N/A N/A 18.0 ppb (17) N/A N/A N/A 0.62 ppb (7) N/A 6.5 μg/m3 (28) 28.0
 
Sept. 17, 2021, 1 p.m. N/A N/A N/A 21.0 ppb (20) N/A N/A N/A 0.65 ppb (8) N/A 8.0 μg/m3 (34) 34.0
 
Sept. 17, 2021, noon N/A N/A N/A 23.0 ppb (22) N/A N/A N/A 0.7 ppb (8) N/A 6.6 μg/m3 (28) 28.0
 
Sept. 17, 2021, 11 a.m. N/A N/A N/A 22.0 ppb (21) N/A N/A N/A 0.63 ppb (7) N/A 6.3 μg/m3 (27) 27.0
 
Sept. 17, 2021, 10 a.m. N/A N/A N/A 20.0 ppb (19) N/A N/A N/A 0.54 ppb (6) N/A 8.6 μg/m3 (36) 36.0
 
Sept. 17, 2021, 9 a.m. N/A N/A 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
 
Sept. 17, 2021, 8 a.m. N/A N/A N/A 19.0 ppb (18) N/A N/A N/A 0.42 ppb (5) N/A 6.7 μg/m3 (28) 28.0
 
Sept. 17, 2021, 7 a.m. N/A N/A N/A 13.0 ppb (13) N/A N/A N/A 0.37 ppb (5) N/A 6.2 μg/m3 (26) 26.0
 
Sept. 17, 2021, 6 a.m. N/A N/A N/A 10.0 ppb (10) N/A N/A N/A 0.41 ppb (5) N/A 7.7 μg/m3 (33) 33.0
 
Sept. 17, 2021, 5 a.m. N/A N/A N/A 12.0 ppb (12) N/A N/A N/A 0.48 ppb (6) N/A 10.8 μg/m3 (46) 46.0
 
Sept. 17, 2021, 4 a.m. N/A N/A N/A 14.0 ppb (14) N/A N/A N/A 0.59 ppb (7) N/A 10.1 μg/m3 (43) 43.0
 
Sept. 17, 2021, 3 a.m. N/A N/A N/A 15.0 ppb (15) N/A N/A N/A 0.64 ppb (7) N/A 8.4 μg/m3 (36) 36.0
 
Sept. 17, 2021, 2 a.m. N/A N/A N/A 16.0 ppb (16) N/A N/A N/A 0.64 ppb (7) N/A 7.0 μg/m3 (30) 30.0
 
Sept. 17, 2021, 1 a.m. N/A N/A N/A 18.0 ppb (17) N/A N/A N/A 0.61 ppb (7) N/A 6.3 μg/m3 (27) 27.0
 
Sept. 17, 2021, midnight N/A N/A N/A N/A N/A N/A N/A 0.64 ppb (7) N/A 6.1 μg/m3 (26) 26.0
 
Sept. 16, 2021, 11 p.m. N/A N/A N/A 19.0 ppb (18) N/A N/A N/A 0.63 ppb (7) N/A 6.4 μg/m3 (27) 27.0
 
Sept. 16, 2021, 10 p.m. N/A N/A N/A 17.0 ppb (17) N/A N/A N/A N/A N/A 6.8 μg/m3 (29) 29.0
 
Sept. 16, 2021, 9 p.m. N/A N/A N/A 14.0 ppb (14) N/A N/A N/A 0.57 ppb (7) N/A 7.9 μg/m3 (33) 33.0
 
Sept. 16, 2021, 8 p.m. N/A N/A N/A 16.0 ppb (16) N/A N/A N/A 0.58 ppb (7) N/A 8.4 μg/m3 (36) 36.0
 
Sept. 16, 2021, 7 p.m. N/A N/A N/A 21.0 ppb (20) N/A N/A N/A 0.63 ppb (7) N/A 8.7 μg/m3 (37) 37.0
 
Sept. 16, 2021, 6 p.m. N/A N/A N/A 19.0 ppb (18) N/A N/A N/A 0.56 ppb (7) N/A 8.4 μg/m3 (36) 36.0
 
Sept. 16, 2021, 5 p.m. N/A N/A N/A 17.0 ppb (17) N/A N/A N/A 0.52 ppb (6) N/A 9.6 μg/m3 (40) 40.0
 
Sept. 16, 2021, 4 p.m. N/A N/A N/A 22.0 ppb (21) N/A N/A N/A 0.55 ppb (7) N/A 9.6 μg/m3 (40) 40.0
 
Sept. 16, 2021, 3 p.m. N/A N/A N/A 17.0 ppb (17) N/A N/A N/A 0.55 ppb (7) N/A 9.8 μg/m3 (41) 41.0
 
Sept. 16, 2021, 2 p.m. N/A N/A N/A 21.0 ppb (20) N/A N/A N/A 0.65 ppb (8) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 16, 2021, 1 p.m. N/A N/A N/A 23.0 ppb (22) N/A N/A N/A 0.62 ppb (7) N/A 9.4 μg/m3 (40) 40.0
 
Sept. 16, 2021, noon N/A N/A N/A 23.0 ppb (22) N/A N/A N/A 0.59 ppb (7) N/A 8.7 μg/m3 (37) 37.0
 
Sept. 16, 2021, 11 a.m. N/A N/A N/A 22.0 ppb (21) N/A N/A N/A 0.65 ppb (8) N/A 8.2 μg/m3 (35) 35.0
 
Sept. 16, 2021, 10 a.m. N/A N/A N/A 10.0 ppb (10) N/A N/A N/A 0.42 ppb (5) N/A 7.4 μg/m3 (31) 31.0
 
Sept. 16, 2021, 9 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A N/A 0.35 ppb (4) N/A 7.7 μg/m3 (33) 33.0
 
Sept. 16, 2021, 8 a.m. N/A N/A N/A 9.0 ppb (9) N/A N/A N/A 0.36 ppb (5) N/A 8.5 μg/m3 (36) 36.0
 
Sept. 16, 2021, 7 a.m. N/A N/A N/A 13.0 ppb (13) N/A N/A N/A 0.41 ppb (5) N/A 8.8 μg/m3 (37) 37.0
 
Sept. 16, 2021, 6 a.m. N/A N/A N/A 8.0 ppb (8) N/A N/A N/A 0.37 ppb (5) N/A 8.7 μg/m3 (37) 37.0
 
Sept. 16, 2021, 5 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.36 ppb (5) N/A 9.7 μg/m3 (41) 41.0
 
Sept. 16, 2021, 4 a.m. N/A N/A N/A 12.0 ppb (12) N/A N/A N/A 0.43 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 16, 2021, 3 a.m. N/A N/A N/A 13.0 ppb (13) N/A N/A N/A 0.43 ppb (5) N/A 10.4 μg/m3 (44) 44.0
 
Sept. 16, 2021, 2 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (4) N/A 7.3 μg/m3 (31) 31.0
 
Sept. 16, 2021, 1 a.m. N/A N/A N/A 8.0 ppb (8) N/A N/A N/A 0.4 ppb (5) N/A 10.2 μg/m3 (43) 43.0
 
Sept. 16, 2021, midnight N/A N/A N/A 10.0 ppb (10) N/A N/A N/A 0.42 ppb (5) N/A 10.9 μg/m3 (46) 46.0
 
Sept. 15, 2021, 11 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.38 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 15, 2021, 10 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 11.6 μg/m3 (49) 49.0
 
Sept. 15, 2021, 9 p.m. N/A N/A N/A 10.0 ppb (10) N/A N/A N/A 0.47 ppb (6) N/A 12.1 μg/m3 (51) 51.0
 
Sept. 15, 2021, 8 p.m. N/A N/A N/A 11.0 ppb (11) N/A N/A N/A 0.44 ppb (5) N/A 11.4 μg/m3 (48) 48.0
 
Sept. 15, 2021, 7 p.m. N/A N/A N/A 9.0 ppb (9) N/A N/A N/A 0.43 ppb (5) N/A 13.2 μg/m3 (54) 54.0
 
Sept. 15, 2021, 6 p.m. N/A N/A N/A 13.0 ppb (13) N/A N/A N/A 0.49 ppb (6) N/A 15.6 μg/m3 (59) 59.0
 
Sept. 15, 2021, 5 p.m. N/A N/A N/A 13.0 ppb (13) N/A N/A N/A 0.5 ppb (6) N/A 18.2 μg/m3 (64) 64.0
 
Sept. 15, 2021, 4 p.m. N/A N/A N/A 17.0 ppb (17) N/A N/A N/A 0.57 ppb (7) N/A 19.5 μg/m3 (67) 67.0
 
Sept. 15, 2021, 3 p.m. N/A N/A N/A 15.0 ppb (15) N/A N/A N/A 0.51 ppb (6) N/A 19.8 μg/m3 (68) 68.0
 
Sept. 15, 2021, 2 p.m. N/A N/A N/A 20.0 ppb (19) N/A N/A N/A 0.64 ppb (7) N/A 19.5 μg/m3 (67) 67.0
 
Sept. 15, 2021, 1 p.m. N/A N/A N/A 18.0 ppb (17) N/A N/A N/A 0.58 ppb (7) N/A 19.3 μg/m3 (67) 67.0
 
Sept. 15, 2021, noon N/A N/A N/A 15.0 ppb (15) N/A N/A N/A 0.64 ppb (7) N/A 18.8 μg/m3 (66) 66.0
 
Sept. 15, 2021, 11 a.m. N/A N/A N/A 9.0 ppb (9) N/A N/A N/A 0.46 ppb (6) N/A 19.1 μg/m3 (66) 66.0
 
Sept. 15, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A 0.43 ppb (5) N/A 20.2 μg/m3 (69) 69.0
 
Sept. 15, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A 0.47 ppb (6) N/A 20.9 μg/m3 (70) 70.0
 
Sept. 15, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A 0.51 ppb (6) N/A 21.6 μg/m3 (71) 71.0
 
Sept. 15, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.49 ppb (6) N/A 20.7 μg/m3 (70) 70.0
 
Sept. 15, 2021, 6 a.m. N/A N/A N/A 12.0 ppb (12) N/A N/A N/A 0.44 ppb (5) N/A 18.9 μg/m3 (66) 66.0
 
Sept. 15, 2021, 5 a.m. N/A N/A N/A 10.0 ppb (10) N/A N/A N/A N/A N/A 17.8 μg/m3 (63) 63.0
 
Sept. 15, 2021, 4 a.m. N/A N/A N/A 17.0 ppb (17) N/A N/A N/A 0.57 ppb (7) N/A 17.9 μg/m3 (64) 64.0
 
Sept. 15, 2021, 3 a.m. N/A N/A N/A 22.0 ppb (21) N/A N/A N/A 0.74 ppb (8) N/A 18.5 μg/m3 (65) 65.0
 
Sept. 15, 2021, 2 a.m. N/A N/A N/A 20.0 ppb (19) N/A N/A N/A 0.74 ppb (8) N/A 18.7 μg/m3 (65) 65.0
 
Sept. 15, 2021, 1 a.m. N/A N/A N/A 10.0 ppb (10) N/A N/A N/A 0.49 ppb (6) N/A 19.3 μg/m3 (67) 67.0
 
Sept. 15, 2021, midnight N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) N/A 21.4 μg/m3 (71) 71.0
 
Sept. 14, 2021, 11 p.m. N/A N/A N/A 18.0 ppb (17) N/A N/A N/A 0.7 ppb (8) N/A 21.4 μg/m3 (71) 71.0
 
Sept. 14, 2021, 10 p.m. N/A N/A N/A 23.0 ppb (22) N/A N/A N/A N/A N/A 21.5 μg/m3 (71) 71.0
 
Sept. 14, 2021, 9 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.46 ppb (6) N/A 20.8 μg/m3 (70) 70.0
 
Sept. 14, 2021, 8 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.43 ppb (5) N/A 21.0 μg/m3 (70) 70.0
 
Sept. 14, 2021, 7 p.m. N/A N/A N/A 14.0 ppb (14) N/A N/A N/A 0.55 ppb (7) N/A 20.9 μg/m3 (70) 70.0
 
Sept. 14, 2021, 6 p.m. N/A N/A N/A 9.0 ppb (9) N/A N/A N/A 0.51 ppb (6) N/A 22.0 μg/m3 (72) 72.0
 
Sept. 14, 2021, 5 p.m. N/A N/A N/A 24.0 ppb (23) N/A N/A N/A 0.72 ppb (8) N/A 24.7 μg/m3 (78) 78.0
 
Sept. 14, 2021, 4 p.m. N/A N/A N/A 26.0 ppb (25) N/A N/A N/A 0.68 ppb (8) N/A 23.2 μg/m3 (75) 75.0
 
Sept. 14, 2021, 3 p.m. N/A N/A N/A 30.0 ppb (29) N/A N/A N/A 0.75 ppb (10) N/A 21.0 μg/m3 (70) 70.0