AQSQID: 421010076

Site Name: Mon

Location: Philadelphia (W Park), PA

Reporting: True, Located: True

Current AQI: 53.0

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
April 9, 2020, 2 p.m. N/A N/A N/A 15.0 ppb (14) N/A N/A N/A 0.54 ppb (6) N/A 13.3 μg/m3 (53) 53.0
 
April 9, 2020, 1 p.m. N/A N/A N/A 27.0 ppb (25) N/A N/A N/A 0.61 ppb (7) N/A 8.1 μg/m3 (34) 34.0
 
April 9, 2020, noon N/A N/A N/A 26.0 ppb (24) N/A N/A N/A 0.58 ppb (6) N/A 9.4 μg/m3 (39) 39.0
 
April 9, 2020, 11 a.m. N/A N/A N/A 25.0 ppb (23) N/A N/A N/A 0.58 ppb (6) N/A 12.8 μg/m3 (52) 52.0
 
April 9, 2020, 10 a.m. N/A N/A N/A 38.0 ppb (35) N/A N/A N/A 0.61 ppb (7) N/A 11.8 μg/m3 (49) 49.0
 
April 9, 2020, 9 a.m. N/A N/A N/A 51.0 ppb (47) N/A N/A N/A 0.5 ppb (6) N/A 10.6 μg/m3 (44) 47.0
 
April 9, 2020, 8 a.m. N/A N/A N/A 37.0 ppb (34) N/A N/A N/A 0.46 ppb (5) N/A 8.1 μg/m3 (34) 34.0
 
April 9, 2020, 7 a.m. N/A N/A N/A 21.0 ppb (19) N/A N/A N/A 0.43 ppb (5) N/A 9.2 μg/m3 (38) 38.0
 
April 9, 2020, 6 a.m. N/A N/A N/A 14.0 ppb (13) N/A N/A N/A 0.41 ppb (5) N/A 11.1 μg/m3 (46) 46.0
 
April 9, 2020, 5 a.m. N/A N/A N/A 12.0 ppb (11) N/A N/A N/A 0.47 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
April 9, 2020, 4 a.m. N/A N/A N/A 14.0 ppb (13) N/A N/A N/A 0.51 ppb (6) N/A 12.1 μg/m3 (50) 50.0
 
April 9, 2020, 3 a.m. N/A N/A N/A 21.0 ppb (19) N/A N/A N/A 0.62 ppb (7) N/A 13.4 μg/m3 (53) 53.0
 
April 9, 2020, 2 a.m. N/A N/A N/A 28.0 ppb (26) N/A N/A N/A 0.67 ppb (7) N/A 16.1 μg/m3 (59) 59.0
 
April 9, 2020, 1 a.m. N/A N/A N/A 21.0 ppb (19) N/A N/A N/A 0.64 ppb (7) N/A 9.0 μg/m3 (38) 38.0
 
April 9, 2020, midnight N/A N/A N/A N/A N/A N/A N/A 0.64 ppb (7) N/A 8.5 μg/m3 (35) 35.0
 
April 8, 2020, 11 p.m. N/A N/A N/A 15.0 ppb (14) N/A N/A N/A 0.67 ppb (7) N/A 5.1 μg/m3 (21) 21.0
 
April 8, 2020, 10 p.m. N/A N/A N/A 8.0 ppb (7) N/A N/A N/A N/A N/A 5.6 μg/m3 (23) 23.0
 
April 8, 2020, 9 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.4 ppb (4) N/A 3.2 μg/m3 (13) 13.0
 
April 8, 2020, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.36 ppb (4) N/A 4.7 μg/m3 (20) 20.0
 
April 8, 2020, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 0.35 ppb (4) N/A 2.7 μg/m3 (11) 11.0
 
April 8, 2020, 6 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 1.2 μg/m3 (5) 5.0
 
April 8, 2020, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.4 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
April 8, 2020, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.42 ppb (5) N/A N/A 5.0
 
April 8, 2020, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.41 ppb (5) N/A 4.1 μg/m3 (17) 17.0
 
April 8, 2020, 2 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.43 ppb (5) N/A 4.8 μg/m3 (20) 20.0
 
April 8, 2020, 1 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.46 ppb (5) N/A 4.2 μg/m3 (18) 18.0
 
April 8, 2020, noon N/A N/A N/A N/A N/A N/A N/A 0.51 ppb (6) N/A 5.7 μg/m3 (24) 24.0
 
April 8, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A 0.55 ppb (6) N/A 4.2 μg/m3 (18) 18.0
 
April 8, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A 0.53 ppb (6) N/A 6.4 μg/m3 (27) 27.0
 
April 8, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A 0.54 ppb (6) N/A 10.1 μg/m3 (42) 42.0
 
April 8, 2020, 8 a.m. N/A N/A N/A 10.0 ppb (9) N/A N/A N/A 0.5 ppb (6) N/A 10.8 μg/m3 (45) 45.0
 
April 8, 2020, 7 a.m. N/A N/A N/A 20.0 ppb (19) N/A N/A N/A 0.5 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
April 8, 2020, 6 a.m. N/A N/A N/A 16.0 ppb (15) N/A N/A N/A N/A N/A 9.7 μg/m3 (40) 40.0
 
April 8, 2020, 5 a.m. N/A N/A N/A 10.0 ppb (9) N/A N/A N/A 0.48 ppb (5) N/A 8.3 μg/m3 (35) 35.0
 
April 8, 2020, 4 a.m. N/A N/A N/A 11.0 ppb (10) N/A N/A N/A 0.5 ppb (6) N/A 11.1 μg/m3 (46) 46.0
 
April 8, 2020, 3 a.m. N/A N/A N/A 12.0 ppb (11) N/A N/A N/A 0.53 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
April 8, 2020, 2 a.m. N/A N/A N/A 8.0 ppb (7) N/A N/A N/A 0.48 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
April 8, 2020, 1 a.m. N/A N/A N/A 8.0 ppb (7) N/A N/A N/A 0.48 ppb (5) N/A 11.8 μg/m3 (49) 49.0
 
April 8, 2020, midnight N/A N/A N/A 7.0 ppb (6) N/A N/A N/A 0.46 ppb (5) N/A 10.8 μg/m3 (45) 45.0
 
April 7, 2020, 11 p.m. N/A N/A N/A 10.0 ppb (9) N/A N/A N/A 0.49 ppb (5) N/A 9.7 μg/m3 (40) 40.0
 
April 7, 2020, 10 p.m. N/A N/A N/A 14.0 ppb (13) N/A N/A N/A N/A N/A 8.3 μg/m3 (35) 35.0
 
April 7, 2020, 9 p.m. N/A N/A N/A 16.0 ppb (15) N/A N/A N/A 0.66 ppb (7) N/A 11.0 μg/m3 (46) 46.0
 
April 7, 2020, 8 p.m. N/A N/A N/A 16.0 ppb (15) N/A N/A N/A 0.63 ppb (7) N/A 10.6 μg/m3 (44) 44.0
 
April 7, 2020, 7 p.m. N/A N/A N/A 16.0 ppb (15) N/A N/A N/A 0.61 ppb (7) N/A 8.0 μg/m3 (33) 33.0
 
April 7, 2020, 6 p.m. N/A N/A N/A 12.0 ppb (11) N/A N/A N/A 0.52 ppb (6) N/A 7.7 μg/m3 (32) 32.0
 
April 7, 2020, 5 p.m. N/A N/A N/A 16.0 ppb (15) N/A N/A N/A 0.52 ppb (6) N/A 6.0 μg/m3 (25) 25.0
 
April 7, 2020, 4 p.m. N/A N/A N/A 17.0 ppb (16) N/A N/A N/A 0.5 ppb (6) N/A 5.8 μg/m3 (24) 24.0
 
April 7, 2020, 3 p.m. N/A N/A N/A 17.0 ppb (16) N/A N/A N/A 0.47 ppb (5) N/A 4.8 μg/m3 (20) 20.0
 
April 7, 2020, 2 p.m. N/A N/A N/A 18.0 ppb (17) N/A N/A N/A 0.45 ppb (5) N/A 4.4 μg/m3 (18) 18.0
 
April 7, 2020, 1 p.m. N/A N/A N/A 25.0 ppb (23) N/A N/A N/A 0.49 ppb (5) N/A 8.1 μg/m3 (34) 34.0
 
April 7, 2020, noon N/A N/A N/A 48.0 ppb (44) N/A N/A N/A 0.75 ppb (8) N/A 8.6 μg/m3 (36) 44.0
 
April 7, 2020, 11 a.m. N/A N/A N/A 26.0 ppb (24) N/A N/A N/A 0.67 ppb (7) N/A 6.0 μg/m3 (25) 25.0
 
April 7, 2020, 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 6.2 μg/m3 (26) 26.0
 
April 7, 2020, 9 a.m. N/A N/A N/A 22.0 ppb (20) N/A N/A N/A 0.52 ppb (6) N/A 8.2 μg/m3 (34) 34.0
 
April 7, 2020, 8 a.m. N/A N/A N/A 23.0 ppb (21) N/A N/A N/A 0.55 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
April 7, 2020, 7 a.m. N/A N/A N/A 20.0 ppb (19) N/A N/A N/A 0.54 ppb (6) N/A 9.4 μg/m3 (39) 39.0
 
April 7, 2020, 6 a.m. N/A N/A N/A 24.0 ppb (22) N/A N/A N/A 0.61 ppb (7) N/A 5.1 μg/m3 (21) 22.0
 
April 7, 2020, 5 a.m. N/A N/A N/A 15.0 ppb (14) N/A N/A N/A 0.52 ppb (6) N/A 5.7 μg/m3 (24) 24.0
 
April 7, 2020, 4 a.m. N/A N/A N/A 20.0 ppb (19) N/A N/A N/A 0.6 ppb (7) N/A 4.2 μg/m3 (18) 19.0
 
April 7, 2020, 3 a.m. N/A N/A N/A 11.0 ppb (10) N/A N/A N/A 0.46 ppb (5) N/A 5.8 μg/m3 (24) 24.0
 
April 7, 2020, 2 a.m. N/A N/A N/A 10.0 ppb (9) N/A N/A N/A 0.47 ppb (5) N/A 4.7 μg/m3 (20) 20.0
 
April 7, 2020, 1 a.m. N/A N/A N/A 9.0 ppb (8) N/A N/A N/A 0.44 ppb (5) N/A 3.1 μg/m3 (13) 13.0
 
April 7, 2020, midnight N/A N/A N/A N/A N/A N/A N/A 0.48 ppb (5) N/A 3.7 μg/m3 (15) 15.0
 
April 6, 2020, 11 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.37 ppb (4) N/A 1.8 μg/m3 (8) 8.0
 
April 6, 2020, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 0.5 μg/m3 (2) 2.0
 
April 6, 2020, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 0.28 ppb (3) N/A N/A 3.0
 
April 6, 2020, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.29 ppb (3) N/A N/A 3.0
 
April 6, 2020, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (3) N/A 104.6 μg/m3 (176) 176.0
 
April 6, 2020, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.31 ppb (3) N/A N/A 3.0
 
April 6, 2020, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.32 ppb (4) N/A N/A 4.0
 
April 6, 2020, 4 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.35 ppb (4) N/A N/A 4.0
 
April 6, 2020, 3 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.36 ppb (4) N/A N/A 4.0
 
April 6, 2020, 2 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.36 ppb (4) N/A N/A 4.0
 
April 6, 2020, 1 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.4 ppb (4) N/A N/A 6.0
 
April 6, 2020, noon N/A N/A N/A 9.0 ppb (8) N/A N/A N/A 0.42 ppb (5) N/A N/A 8.0
 
April 6, 2020, 11 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.42 ppb (5) N/A N/A 6.0
 
April 6, 2020, 10 a.m. N/A N/A N/A 8.0 ppb (7) N/A N/A N/A 0.44 ppb (5) N/A N/A 7.0
 
April 6, 2020, 9 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.43 ppb (5) N/A N/A 5.0
 
April 6, 2020, 8 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.44 ppb (5) N/A N/A 5.0
 
April 6, 2020, 7 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.47 ppb (5) N/A N/A 5.0
 
April 6, 2020, 6 a.m. N/A N/A N/A 9.0 ppb (8) N/A N/A N/A 0.49 ppb (5) N/A N/A 8.0
 
April 6, 2020, 5 a.m. N/A N/A N/A 11.0 ppb (10) N/A N/A N/A 0.46 ppb (5) N/A N/A 10.0
 
April 6, 2020, 4 a.m. N/A N/A N/A 16.0 ppb (15) N/A N/A N/A 0.48 ppb (5) N/A N/A 15.0
 
April 6, 2020, 3 a.m. N/A N/A N/A 18.0 ppb (17) N/A N/A N/A 0.52 ppb (6) N/A N/A 17.0
 
April 6, 2020, 2 a.m. N/A N/A N/A 17.0 ppb (16) N/A N/A N/A 0.51 ppb (6) N/A N/A 16.0
 
April 6, 2020, 1 a.m. N/A N/A N/A 12.0 ppb (11) N/A N/A N/A 0.5 ppb (6) N/A N/A 11.0
 
April 6, 2020, midnight N/A N/A N/A 9.0 ppb (8) N/A N/A N/A 0.54 ppb (6) N/A N/A 8.0
 
April 5, 2020, 11 p.m. N/A N/A N/A 9.0 ppb (8) N/A N/A N/A 0.45 ppb (5) N/A N/A 8.0
 
April 5, 2020, 10 p.m. N/A N/A N/A 11.0 ppb (10) N/A N/A N/A N/A N/A N/A 10.0
 
April 5, 2020, 9 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.5 ppb (6) N/A N/A 6.0
 
April 5, 2020, 8 p.m. N/A N/A N/A 7.0 ppb (6) N/A N/A N/A 0.51 ppb (6) N/A N/A 6.0
 
April 5, 2020, 7 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.51 ppb (6) N/A N/A 6.0
 
April 5, 2020, 6 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.48 ppb (5) N/A N/A 5.0
 
April 5, 2020, 5 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.52 ppb (6) N/A N/A 6.0
 
April 5, 2020, 4 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.44 ppb (5) N/A N/A 5.0
 
April 5, 2020, 3 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.43 ppb (5) N/A N/A 5.0
 
April 5, 2020, 2 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.43 ppb (5) N/A N/A 5.0
 
April 5, 2020, 1 p.m. N/A N/A N/A 12.0 ppb (11) N/A N/A N/A 0.55 ppb (6) N/A N/A 11.0
 
April 5, 2020, noon N/A N/A N/A 20.0 ppb (19) N/A N/A N/A 0.64 ppb (7) N/A N/A 19.0
 
April 5, 2020, 11 a.m. N/A N/A N/A 20.0 ppb (19) N/A N/A N/A 0.58 ppb (6) N/A N/A 19.0
 
April 5, 2020, 10 a.m. N/A N/A N/A 22.0 ppb (20) N/A N/A N/A 0.57 ppb (6) N/A N/A 20.0
 
April 5, 2020, 9 a.m. N/A N/A N/A 17.0 ppb (16) N/A N/A N/A 0.52 ppb (6) N/A N/A 16.0
 
April 5, 2020, 8 a.m. N/A N/A N/A 16.0 ppb (15) N/A N/A N/A 0.49 ppb (5) N/A N/A 15.0
 
April 5, 2020, 7 a.m. N/A N/A N/A 17.0 ppb (16) N/A N/A N/A 0.49 ppb (5) N/A N/A 16.0
 
April 5, 2020, 6 a.m. N/A N/A N/A 14.0 ppb (13) N/A N/A N/A 0.46 ppb (5) N/A N/A 13.0
 
April 5, 2020, 5 a.m. N/A N/A N/A 14.0 ppb (13) N/A N/A N/A 0.47 ppb (5) N/A N/A 13.0
 
April 5, 2020, 4 a.m. N/A N/A N/A 19.0 ppb (18) N/A N/A N/A 0.54 ppb (6) N/A N/A 18.0
 
April 5, 2020, 3 a.m. N/A N/A N/A 16.0 ppb (15) N/A N/A N/A 0.64 ppb (7) N/A N/A 15.0
 
April 5, 2020, 2 a.m. N/A N/A N/A 14.0 ppb (13) N/A N/A N/A 0.58 ppb (6) N/A N/A 13.0
 
April 5, 2020, 1 a.m. N/A N/A N/A 19.0 ppb (18) N/A N/A N/A 0.63 ppb (7) N/A N/A 18.0
 
April 5, 2020, midnight N/A N/A N/A N/A N/A N/A N/A 0.52 ppb (6) N/A N/A 6.0
 
April 4, 2020, 11 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.47 ppb (5) N/A N/A 6.0
 
April 4, 2020, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A N/A N/A N/A 4.0
 
April 4, 2020, 9 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.44 ppb (5) N/A N/A 5.0
 
April 4, 2020, 8 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.44 ppb (5) N/A N/A 5.0
 
April 4, 2020, 7 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.4 ppb (4) N/A N/A 4.0
 
April 4, 2020, 6 p.m. N/A N/A N/A 10.0 ppb (9) N/A N/A N/A 0.53 ppb (6) N/A N/A 9.0
 
April 4, 2020, 5 p.m. N/A N/A N/A 26.0 ppb (24) N/A N/A N/A 0.6 ppb (7) N/A N/A 24.0
 
April 4, 2020, 4 p.m. N/A N/A N/A 23.0 ppb (21) N/A N/A N/A 0.6 ppb (7) N/A N/A 21.0
 
April 4, 2020, 3 p.m. N/A N/A N/A 32.0 ppb (30) N/A N/A N/A 0.57 ppb (6) N/A N/A 30.0
 
April 4, 2020, 2 p.m. N/A N/A N/A 22.0 ppb (20) N/A N/A N/A 0.52 ppb (6) N/A N/A 20.0
 
April 4, 2020, 1 p.m. N/A N/A N/A 16.0 ppb (15) N/A N/A N/A 0.47 ppb (5) N/A N/A 15.0
 
April 4, 2020, noon N/A N/A N/A 14.0 ppb (13) N/A N/A N/A 0.42 ppb (5) N/A N/A 13.0
 
April 4, 2020, 11 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.39 ppb (4) N/A N/A 6.0
 
April 4, 2020, 10 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.38 ppb (4) N/A N/A 5.0
 
April 4, 2020, 9 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.37 ppb (4) N/A N/A 4.0
 
April 4, 2020, 8 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.37 ppb (4) N/A N/A 4.0
 
April 4, 2020, 7 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.37 ppb (4) N/A N/A 4.0
 
April 4, 2020, 6 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.36 ppb (4) N/A N/A 4.0
 
April 4, 2020, 5 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.36 ppb (4) N/A N/A 4.0
 
April 4, 2020, 4 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.36 ppb (4) N/A N/A 4.0
 
April 4, 2020, 3 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.36 ppb (4) N/A N/A 4.0
 
April 4, 2020, 2 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.36 ppb (4) N/A N/A 4.0
 
April 4, 2020, 1 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.35 ppb (4) N/A N/A 4.0
 
April 4, 2020, midnight N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.35 ppb (4) N/A N/A 4.0
 
April 3, 2020, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.33 ppb (4) N/A N/A 4.0
 
April 3, 2020, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A N/A N/A 2.0
 
April 3, 2020, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.33 ppb (4) N/A N/A 4.0
 
April 3, 2020, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 0.33 ppb (4) N/A N/A 4.0
 
April 3, 2020, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 0.33 ppb (4) N/A 3.5 μg/m3 (15) 15.0
 
April 3, 2020, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 0.33 ppb (4) N/A 0.3 μg/m3 (1) 4.0
 
April 3, 2020, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 0.33 ppb (4) N/A 3.1 μg/m3 (13) 13.0
 
April 3, 2020, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.32 ppb (4) N/A N/A 4.0
 
April 3, 2020, 3 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.33 ppb (4) N/A N/A 4.0
 
April 3, 2020, 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 2.7 μg/m3 (11) 11.0
 
April 3, 2020, 1 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (3) N/A 1.2 μg/m3 (5) 5.0
 
April 3, 2020, noon N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.29 ppb (3) N/A 3.3 μg/m3 (14) 14.0
 
April 3, 2020, 11 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.29 ppb (3) N/A 5.5 μg/m3 (23) 23.0
 
April 3, 2020, 10 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.27 ppb (3) N/A 2.2 μg/m3 (9) 9.0
 
April 3, 2020, 9 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.26 ppb (3) N/A 4.2 μg/m3 (18) 18.0
 
April 3, 2020, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.23 ppb (3) N/A 5.6 μg/m3 (23) 23.0
 
April 3, 2020, 7 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.21 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
April 3, 2020, 6 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.22 ppb (2) N/A 3.2 μg/m3 (13) 13.0
 
April 3, 2020, 5 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.24 ppb (3) N/A 4.8 μg/m3 (20) 20.0
 
April 3, 2020, 4 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.27 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
April 3, 2020, 3 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 0.27 ppb (3) N/A 4.1 μg/m3 (17) 17.0
 
April 3, 2020, 2 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.27 ppb (3) N/A 4.7 μg/m3 (20) 20.0
 
April 3, 2020, 1 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 0.27 ppb (3) N/A 3.0 μg/m3 (12) 12.0
 
April 3, 2020, midnight N/A N/A N/A N/A N/A N/A N/A 0.27 ppb (3) N/A 2.8 μg/m3 (12) 12.0
 
April 2, 2020, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.24 ppb (3) N/A 2.0 μg/m3 (8) 8.0
 
April 2, 2020, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 1.8 μg/m3 (8) 8.0
 
April 2, 2020, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 0.26 ppb (3) N/A -0.1 μg/m3 (0) 3.0
 
April 2, 2020, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 0.26 ppb (3) N/A N/A 3.0
 
April 2, 2020, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 0.26 ppb (3) N/A N/A 3.0
 
April 2, 2020, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 0.26 ppb (3) N/A 2.0 μg/m3 (8) 8.0
 
April 2, 2020, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 0.27 ppb (3) N/A 2.0 μg/m3 (8) 8.0
 
April 2, 2020, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 0.26 ppb (3) N/A 2.0 μg/m3 (8) 8.0
 
April 2, 2020, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 0.25 ppb (3) N/A 2.2 μg/m3 (9) 9.0