AQSQID: 421010075

Site Name: Tor

Location: Philadelphia (Torresdale), PA

Reporting: True, Located: True

Current AQI: 17.0

Philadelphia (Torresdale) PA, US: 40.054171, -74.985166

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 29, 2020, midnight N/A N/A N/A 9.0 ppb (8) N/A N/A N/A 0.28 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
March 28, 2020, 11 p.m. N/A N/A N/A 10.0 ppb (9) N/A N/A N/A 0.32 ppb (4) N/A 4.9 μg/m3 (20) 20.0
 
March 28, 2020, 10 p.m. N/A N/A N/A 9.0 ppb (8) N/A N/A N/A 0.29 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
March 28, 2020, 9 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.24 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
March 28, 2020, 8 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.24 ppb (3) N/A 3.0 μg/m3 (12) 12.0
 
March 28, 2020, 7 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.21 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
March 28, 2020, 6 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.23 ppb (3) N/A 3.9 μg/m3 (16) 16.0
 
March 28, 2020, 5 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.24 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
March 28, 2020, 4 p.m. N/A N/A N/A 8.0 ppb (7) N/A N/A N/A 0.26 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
March 28, 2020, 3 p.m. N/A N/A N/A 10.0 ppb (9) N/A N/A N/A 0.27 ppb (3) N/A 6.9 μg/m3 (29) 29.0
 
March 28, 2020, 2 p.m. N/A N/A N/A 10.0 ppb (9) N/A N/A N/A 0.28 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
March 28, 2020, 1 p.m. N/A N/A N/A 16.0 ppb (15) N/A N/A N/A 0.35 ppb (4) N/A 7.9 μg/m3 (33) 33.0
 
March 28, 2020, noon N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.25 ppb (3) N/A 13.8 μg/m3 (54) 54.0
 
March 28, 2020, 11 a.m. N/A N/A N/A 9.0 ppb (8) N/A N/A N/A 0.29 ppb (3) N/A 8.1 μg/m3 (34) 34.0
 
March 28, 2020, 10 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A N/A 0.26 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
March 28, 2020, 9 a.m. N/A N/A N/A 16.0 ppb (15) N/A N/A N/A 0.31 ppb (3) N/A 3.0 μg/m3 (12) 15.0
 
March 28, 2020, 8 a.m. N/A N/A N/A 15.0 ppb (14) N/A N/A N/A 0.3 ppb (3) N/A 5.9 μg/m3 (25) 25.0
 
March 28, 2020, 7 a.m. N/A N/A N/A 11.0 ppb (10) N/A N/A N/A 0.27 ppb (3) N/A 10.9 μg/m3 (45) 45.0
 
March 28, 2020, 6 a.m. N/A N/A N/A 13.0 ppb (12) N/A N/A N/A 0.35 ppb (4) N/A 19.8 μg/m3 (67) 67.0
 
March 28, 2020, 5 a.m. N/A N/A N/A 21.0 ppb (19) N/A N/A N/A 0.49 ppb (5) N/A 25.8 μg/m3 (79) 79.0
 
March 28, 2020, 4 a.m. N/A N/A N/A 27.0 ppb (25) N/A N/A N/A 0.65 ppb (7) N/A 19.1 μg/m3 (65) 65.0
 
March 28, 2020, 3 a.m. N/A N/A N/A 32.0 ppb (30) N/A N/A N/A 0.77 ppb (9) N/A 18.0 μg/m3 (63) 63.0
 
March 28, 2020, 2 a.m. N/A N/A N/A 26.0 ppb (24) N/A N/A N/A 0.55 ppb (6) N/A 19.9 μg/m3 (67) 67.0
 
March 28, 2020, 1 a.m. N/A N/A N/A 27.0 ppb (25) N/A N/A N/A 0.64 ppb (7) N/A 12.1 μg/m3 (50) 50.0
 
March 28, 2020, midnight N/A N/A N/A N/A N/A N/A N/A 0.61 ppb (7) N/A 10.0 μg/m3 (42) 42.0
 
March 27, 2020, 11 p.m. N/A N/A N/A 23.0 ppb (21) N/A N/A N/A N/A N/A 4.1 μg/m3 (17) 21.0
 
March 27, 2020, 10 p.m. N/A N/A N/A 13.0 ppb (12) N/A N/A N/A 0.47 ppb (5) N/A 2.0 μg/m3 (8) 12.0
 
March 27, 2020, 9 p.m. N/A N/A N/A 11.0 ppb (10) N/A N/A N/A 0.39 ppb (4) N/A 2.9 μg/m3 (12) 12.0
 
March 27, 2020, 8 p.m. N/A N/A N/A 9.0 ppb (8) N/A N/A N/A 0.41 ppb (5) N/A 2.0 μg/m3 (8) 8.0
 
March 27, 2020, 7 p.m. N/A N/A N/A 11.0 ppb (10) N/A N/A N/A 0.39 ppb (4) N/A 3.9 μg/m3 (16) 16.0
 
March 27, 2020, 6 p.m. N/A N/A N/A 13.0 ppb (12) N/A N/A N/A 0.4 ppb (4) N/A 4.9 μg/m3 (20) 20.0
 
March 27, 2020, 5 p.m. N/A N/A N/A 11.0 ppb (10) N/A N/A N/A 0.37 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
March 27, 2020, 4 p.m. N/A N/A N/A 9.0 ppb (8) N/A N/A N/A 0.33 ppb (4) N/A 6.9 μg/m3 (29) 29.0
 
March 27, 2020, 3 p.m. N/A N/A N/A 15.0 ppb (14) N/A N/A N/A 0.37 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
March 27, 2020, 2 p.m. N/A N/A N/A 14.0 ppb (13) N/A N/A N/A 0.38 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
March 27, 2020, 1 p.m. N/A N/A N/A 17.0 ppb (16) N/A N/A N/A 0.38 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
March 27, 2020, noon N/A N/A N/A 25.0 ppb (23) N/A N/A N/A 0.48 ppb (5) N/A 9.9 μg/m3 (41) 41.0
 
March 27, 2020, 11 a.m. N/A N/A N/A 28.0 ppb (26) N/A N/A N/A 0.55 ppb (6) N/A 7.0 μg/m3 (29) 29.0
 
March 27, 2020, 10 a.m. N/A N/A N/A 31.0 ppb (29) N/A N/A N/A 0.54 ppb (6) N/A 7.0 μg/m3 (29) 29.0
 
March 27, 2020, 9 a.m. N/A N/A N/A 23.0 ppb (21) N/A N/A N/A 0.39 ppb (4) N/A 8.9 μg/m3 (37) 37.0
 
March 27, 2020, 8 a.m. N/A N/A N/A 23.0 ppb (21) N/A N/A N/A 0.29 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
March 27, 2020, 7 a.m. N/A N/A N/A 13.0 ppb (12) N/A N/A N/A 0.23 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
March 27, 2020, 6 a.m. N/A N/A N/A 16.0 ppb (15) N/A N/A N/A 0.24 ppb (3) N/A 9.9 μg/m3 (41) 41.0
 
March 27, 2020, 5 a.m. N/A N/A N/A 14.0 ppb (13) N/A N/A N/A 0.29 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
March 27, 2020, 4 a.m. N/A N/A N/A 11.0 ppb (10) N/A N/A N/A 0.33 ppb (4) N/A 2.0 μg/m3 (8) 10.0
 
March 27, 2020, 3 a.m. N/A N/A N/A 10.0 ppb (9) N/A N/A N/A 0.4 ppb (4) N/A 3.9 μg/m3 (16) 16.0
 
March 27, 2020, 2 a.m. N/A N/A N/A 11.0 ppb (10) N/A N/A N/A 0.31 ppb (3) N/A 5.9 μg/m3 (25) 25.0
 
March 27, 2020, 1 a.m. N/A N/A N/A 10.0 ppb (9) N/A N/A N/A 0.3 ppb (3) N/A 6.9 μg/m3 (29) 29.0
 
March 27, 2020, midnight N/A N/A N/A 11.0 ppb (10) N/A N/A N/A 0.32 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
March 26, 2020, 11 p.m. N/A N/A N/A 14.0 ppb (13) N/A N/A N/A 0.38 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
March 26, 2020, 10 p.m. N/A N/A N/A 8.0 ppb (7) N/A N/A N/A 0.27 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
March 26, 2020, 9 p.m. N/A N/A N/A 7.0 ppb (6) N/A N/A N/A 0.26 ppb (3) N/A 6.9 μg/m3 (29) 29.0
 
March 26, 2020, 8 p.m. N/A N/A N/A 11.0 ppb (10) N/A N/A N/A 0.29 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
March 26, 2020, 7 p.m. N/A N/A N/A 12.0 ppb (11) N/A N/A N/A 0.29 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
March 26, 2020, 6 p.m. N/A N/A N/A 11.0 ppb (10) N/A N/A N/A 0.28 ppb (3) N/A 4.9 μg/m3 (20) 20.0
 
March 26, 2020, 5 p.m. N/A N/A N/A 10.0 ppb (9) N/A N/A N/A 0.27 ppb (3) N/A 5.9 μg/m3 (25) 25.0
 
March 26, 2020, 4 p.m. N/A N/A N/A 9.0 ppb (8) N/A N/A N/A 0.27 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
March 26, 2020, 3 p.m. N/A N/A N/A 8.0 ppb (7) N/A N/A N/A 0.26 ppb (3) N/A 3.0 μg/m3 (12) 12.0
 
March 26, 2020, 2 p.m. N/A N/A N/A 10.0 ppb (9) N/A N/A N/A 0.27 ppb (3) N/A 5.9 μg/m3 (25) 25.0
 
March 26, 2020, 1 p.m. N/A N/A N/A 10.0 ppb (9) N/A N/A N/A 0.27 ppb (3) N/A 9.9 μg/m3 (41) 41.0
 
March 26, 2020, noon N/A N/A N/A 26.0 ppb (24) N/A N/A N/A 0.49 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
March 26, 2020, 11 a.m. N/A N/A N/A 32.0 ppb (30) N/A N/A N/A 0.69 ppb (8) N/A 9.9 μg/m3 (41) 41.0
 
March 26, 2020, 10 a.m. N/A N/A N/A 29.0 ppb (27) N/A N/A N/A 0.59 ppb (7) N/A 8.0 μg/m3 (33) 33.0
 
March 26, 2020, 9 a.m. N/A N/A N/A 28.0 ppb (26) N/A N/A N/A 0.51 ppb (6) N/A 9.9 μg/m3 (41) 41.0
 
March 26, 2020, 8 a.m. N/A N/A N/A 20.0 ppb (19) N/A N/A N/A 0.36 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
March 26, 2020, 7 a.m. N/A N/A N/A 15.0 ppb (14) N/A N/A N/A 0.27 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
March 26, 2020, 6 a.m. N/A N/A N/A 16.0 ppb (15) N/A N/A N/A 0.27 ppb (3) N/A 3.0 μg/m3 (12) 15.0
 
March 26, 2020, 5 a.m. N/A N/A N/A 13.0 ppb (12) N/A N/A N/A 0.26 ppb (3) N/A 2.0 μg/m3 (8) 12.0
 
March 26, 2020, 4 a.m. N/A N/A N/A 12.0 ppb (11) N/A N/A N/A 0.29 ppb (3) N/A 3.9 μg/m3 (16) 16.0
 
March 26, 2020, 3 a.m. N/A N/A N/A 16.0 ppb (15) N/A N/A N/A 0.31 ppb (3) N/A 6.9 μg/m3 (29) 29.0
 
March 26, 2020, 2 a.m. N/A N/A N/A 15.0 ppb (14) N/A N/A N/A 0.35 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
March 26, 2020, 1 a.m. N/A N/A N/A 13.0 ppb (12) N/A N/A N/A 0.28 ppb (3) N/A 3.0 μg/m3 (12) 12.0
 
March 26, 2020, midnight N/A N/A N/A N/A N/A N/A N/A 0.23 ppb (3) N/A 3.0 μg/m3 (12) 12.0
 
March 25, 2020, 11 p.m. N/A N/A N/A 11.0 ppb (10) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
March 25, 2020, 10 p.m. N/A N/A N/A 16.0 ppb (15) N/A N/A N/A 0.34 ppb (4) N/A 3.0 μg/m3 (12) 15.0
 
March 25, 2020, 9 p.m. N/A N/A N/A 13.0 ppb (12) N/A N/A N/A 0.29 ppb (3) N/A 2.0 μg/m3 (8) 12.0
 
March 25, 2020, 8 p.m. N/A N/A N/A 7.0 ppb (6) N/A N/A N/A 0.23 ppb (3) N/A 2.9 μg/m3 (12) 12.0
 
March 25, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A 0.23 ppb (3) N/A 2.0 μg/m3 (8) 8.0
 
March 25, 2020, 6 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.22 ppb (2) N/A 1.0 μg/m3 (4) 5.0
 
March 25, 2020, 5 p.m. N/A N/A N/A 7.0 ppb (6) N/A N/A N/A 0.21 ppb (2) N/A 0.0 μg/m3 (0) 6.0
 
March 25, 2020, 4 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.19 ppb (2) N/A 0.9 μg/m3 (4) 4.0
 
March 25, 2020, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.18 ppb (2) N/A 2.9 μg/m3 (12) 12.0
 
March 25, 2020, 2 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.2 ppb (2) N/A 3.9 μg/m3 (16) 16.0
 
March 25, 2020, 1 p.m. N/A N/A N/A 8.0 ppb (7) N/A N/A N/A 0.23 ppb (3) N/A 2.0 μg/m3 (8) 8.0
 
March 25, 2020, noon N/A N/A N/A 9.0 ppb (8) N/A N/A N/A 0.22 ppb (2) N/A 2.0 μg/m3 (8) 8.0
 
March 25, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A 0.23 ppb (3) N/A 3.9 μg/m3 (16) 16.0
 
March 25, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A 0.24 ppb (3) N/A 3.0 μg/m3 (12) 12.0
 
March 25, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (2) N/A 3.9 μg/m3 (16) 16.0
 
March 25, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A 0.21 ppb (2) N/A 2.0 μg/m3 (8) 8.0
 
March 25, 2020, 7 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A N/A 0.22 ppb (2) N/A 2.9 μg/m3 (12) 12.0
 
March 25, 2020, 6 a.m. N/A N/A N/A 8.0 ppb (7) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
March 25, 2020, 5 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A N/A 0.21 ppb (2) N/A 0.0 μg/m3 (0) 6.0
 
March 25, 2020, 4 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.22 ppb (2) N/A 2.9 μg/m3 (12) 12.0
 
March 25, 2020, 3 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.2 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
March 25, 2020, 2 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.2 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
March 25, 2020, 1 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.2 ppb (2) N/A 5.9 μg/m3 (25) 25.0
 
March 25, 2020, midnight N/A N/A N/A 8.0 ppb (7) N/A N/A N/A 0.25 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
March 24, 2020, 11 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.23 ppb (3) N/A 0.0 μg/m3 (0) 5.0
 
March 24, 2020, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.2 ppb (2) N/A -0.9 μg/m3 (0) 4.0
 
March 24, 2020, 9 p.m. N/A N/A N/A 7.0 ppb (6) N/A N/A N/A 0.29 ppb (3) N/A 0.9 μg/m3 (4) 6.0
 
March 24, 2020, 8 p.m. N/A N/A N/A 14.0 ppb (13) N/A N/A N/A 0.32 ppb (4) N/A 2.9 μg/m3 (12) 13.0
 
March 24, 2020, 7 p.m. N/A N/A N/A 12.0 ppb (11) N/A N/A N/A 0.37 ppb (4) N/A 2.0 μg/m3 (8) 11.0
 
March 24, 2020, 6 p.m. N/A N/A N/A 12.0 ppb (11) N/A N/A N/A 0.34 ppb (4) N/A 1.0 μg/m3 (4) 11.0
 
March 24, 2020, 5 p.m. N/A N/A N/A 11.0 ppb (10) N/A N/A N/A 0.3 ppb (3) N/A 1.9 μg/m3 (8) 10.0
 
March 24, 2020, 4 p.m. N/A N/A N/A 11.0 ppb (10) N/A N/A N/A 0.28 ppb (3) N/A 4.9 μg/m3 (20) 20.0
 
March 24, 2020, 3 p.m. N/A N/A N/A 12.0 ppb (11) N/A N/A N/A 0.34 ppb (4) N/A 5.9 μg/m3 (25) 25.0
 
March 24, 2020, 2 p.m. N/A N/A N/A 12.0 ppb (11) N/A N/A N/A 0.3 ppb (3) N/A 3.0 μg/m3 (12) 12.0
 
March 24, 2020, 1 p.m. N/A N/A N/A 12.0 ppb (11) N/A N/A N/A 0.28 ppb (3) N/A 0.0 μg/m3 (0) 11.0
 
March 24, 2020, noon N/A N/A N/A 14.0 ppb (13) N/A N/A N/A 0.33 ppb (4) N/A 0.0 μg/m3 (0) 13.0
 
March 24, 2020, 11 a.m. N/A N/A N/A 12.0 ppb (11) N/A N/A N/A 0.33 ppb (4) N/A 1.9 μg/m3 (8) 11.0
 
March 24, 2020, 10 a.m. N/A N/A N/A 17.0 ppb (16) N/A N/A N/A 0.37 ppb (4) N/A 2.0 μg/m3 (8) 16.0
 
March 24, 2020, 9 a.m. N/A N/A N/A 16.0 ppb (15) N/A N/A N/A 0.35 ppb (4) N/A 2.0 μg/m3 (8) 15.0
 
March 24, 2020, 8 a.m. N/A N/A N/A 9.0 ppb (8) N/A N/A N/A 0.23 ppb (3) N/A 3.9 μg/m3 (16) 16.0
 
March 24, 2020, 7 a.m. N/A N/A N/A 16.0 ppb (15) N/A N/A N/A 0.26 ppb (3) N/A 3.0 μg/m3 (12) 15.0
 
March 24, 2020, 6 a.m. N/A N/A N/A 19.0 ppb (18) N/A N/A N/A 0.29 ppb (3) N/A 3.0 μg/m3 (12) 18.0
 
March 24, 2020, 5 a.m. N/A N/A N/A 13.0 ppb (12) N/A N/A N/A 0.21 ppb (2) N/A 3.9 μg/m3 (16) 16.0
 
March 24, 2020, 4 a.m. N/A N/A N/A 8.0 ppb (7) N/A N/A N/A 0.22 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
March 24, 2020, 3 a.m. N/A N/A N/A 8.0 ppb (7) N/A N/A N/A 0.24 ppb (3) N/A 3.0 μg/m3 (12) 12.0
 
March 24, 2020, 2 a.m. N/A N/A N/A 9.0 ppb (8) N/A N/A N/A 0.25 ppb (3) N/A 0.0 μg/m3 (0) 8.0
 
March 24, 2020, 1 a.m. N/A N/A N/A 9.0 ppb (8) N/A N/A N/A 0.24 ppb (3) N/A -0.9 μg/m3 (0) 8.0
 
March 24, 2020, midnight N/A N/A N/A N/A N/A N/A N/A 0.23 ppb (3) N/A 0.9 μg/m3 (4) 4.0
 
March 23, 2020, 11 p.m. N/A N/A N/A 13.0 ppb (12) N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 12.0
 
March 23, 2020, 10 p.m. N/A N/A N/A 12.0 ppb (11) N/A N/A N/A 0.28 ppb (3) N/A 0.9 μg/m3 (4) 11.0
 
March 23, 2020, 9 p.m. N/A N/A N/A 8.0 ppb (7) N/A N/A N/A 0.27 ppb (3) N/A 1.9 μg/m3 (8) 8.0
 
March 23, 2020, 8 p.m. N/A N/A N/A 15.0 ppb (14) N/A N/A N/A 0.28 ppb (3) N/A 2.0 μg/m3 (8) 14.0
 
March 23, 2020, 7 p.m. N/A N/A N/A 17.0 ppb (16) N/A N/A N/A 0.27 ppb (3) N/A -0.9 μg/m3 (0) 16.0
 
March 23, 2020, 6 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.19 ppb (2) N/A -1.9 μg/m3 (0) 5.0
 
March 23, 2020, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.18 ppb (2) N/A 0.0 μg/m3 (0) 2.0
 
March 23, 2020, 4 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.18 ppb (2) N/A 1.9 μg/m3 (8) 8.0
 
March 23, 2020, 3 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.18 ppb (2) N/A 3.9 μg/m3 (16) 16.0
 
March 23, 2020, 2 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.18 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
March 23, 2020, 1 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.18 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
March 23, 2020, noon N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.17 ppb (2) N/A 2.0 μg/m3 (8) 8.0
 
March 23, 2020, 11 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.18 ppb (2) N/A 4.9 μg/m3 (20) 20.0
 
March 23, 2020, 10 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.18 ppb (2) N/A 6.9 μg/m3 (29) 29.0
 
March 23, 2020, 9 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.16 ppb (2) N/A 2.0 μg/m3 (8) 8.0
 
March 23, 2020, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.16 ppb (2) N/A 2.9 μg/m3 (12) 12.0
 
March 23, 2020, 7 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.16 ppb (2) N/A 6.9 μg/m3 (29) 29.0
 
March 23, 2020, 6 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 0.16 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
March 23, 2020, 5 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.16 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
March 23, 2020, 4 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 0.16 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
March 23, 2020, 3 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 0.16 ppb (2) N/A 3.9 μg/m3 (16) 16.0
 
March 23, 2020, 2 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 0.16 ppb (2) N/A 5.9 μg/m3 (25) 25.0
 
March 23, 2020, 1 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 0.16 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
March 23, 2020, midnight N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 0.17 ppb (2) N/A 5.9 μg/m3 (25) 25.0
 
March 22, 2020, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 0.17 ppb (2) N/A 7.9 μg/m3 (33) 33.0
 
March 22, 2020, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.18 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
March 22, 2020, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.18 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
March 22, 2020, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.2 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
March 22, 2020, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.18 ppb (2) N/A 4.9 μg/m3 (20) 20.0
 
March 22, 2020, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.19 ppb (2) N/A 7.9 μg/m3 (33) 33.0
 
March 22, 2020, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.2 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
March 22, 2020, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.21 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
March 22, 2020, 3 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.2 ppb (2) N/A 4.9 μg/m3 (20) 20.0
 
March 22, 2020, 2 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.21 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
March 22, 2020, 1 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.24 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
March 22, 2020, noon N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.22 ppb (2) N/A 4.9 μg/m3 (20) 20.0
 
March 22, 2020, 11 a.m. N/A N/A N/A 8.0 ppb (7) N/A N/A N/A 0.27 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
March 22, 2020, 10 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A N/A 0.25 ppb (3) N/A 1.0 μg/m3 (4) 6.0
 
March 22, 2020, 9 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.21 ppb (2) N/A 0.0 μg/m3 (0) 5.0
 
March 22, 2020, 8 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.2 ppb (2) N/A 1.9 μg/m3 (8) 8.0
 
March 22, 2020, 7 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.2 ppb (2) N/A 2.9 μg/m3 (12) 12.0
 
March 22, 2020, 6 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.2 ppb (2) N/A 2.0 μg/m3 (8) 8.0
 
March 22, 2020, 5 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.22 ppb (2) N/A 4.9 μg/m3 (20) 20.0
 
March 22, 2020, 4 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.22 ppb (2) N/A 6.9 μg/m3 (29) 29.0
 
March 22, 2020, 3 a.m. N/A N/A N/A 10.0 ppb (9) N/A N/A N/A 0.34 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
March 22, 2020, 2 a.m. N/A N/A N/A 11.0 ppb (10) N/A N/A N/A 0.35 ppb (4) N/A 5.9 μg/m3 (25) 25.0
 
March 22, 2020, 1 a.m. N/A N/A N/A 9.0 ppb (8) N/A N/A N/A 0.32 ppb (4) N/A 6.0 μg/m3 (25) 25.0