AQSQID: 421010055

Site Name: Rit

Location: Philadelphia (W Passyunk), PA

Reporting: True, Located: True

Current AQI: 21.0

Philadelphia (W Passyunk) PA, US: 39.922516, -75.186783

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 25, 2020, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 25, 2020, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 9.4 μg/m3 (39) 39.0
 
Jan. 25, 2020, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 14.4 μg/m3 (55) 55.0
 
Jan. 25, 2020, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 18.5 μg/m3 (64) 64.0
 
Jan. 25, 2020, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 16.3 μg/m3 (59) 59.0
 
Jan. 25, 2020, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 12.3 μg/m3 (51) 51.0
 
Jan. 25, 2020, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 25, 2020, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 9.3 μg/m3 (39) 39.0
 
Jan. 25, 2020, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 9.8 μg/m3 (41) 41.0
 
Jan. 25, 2020, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 8.1 μg/m3 (34) 34.0
 
Jan. 24, 2020, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 7.1 μg/m3 (30) 30.0
 
Jan. 24, 2020, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 3.3 μg/m3 (14) 14.0
 
Jan. 24, 2020, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Jan. 24, 2020, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Jan. 24, 2020, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 5.6 μg/m3 (23) 23.0
 
Jan. 24, 2020, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 8.6 μg/m3 (36) 36.0
 
Jan. 24, 2020, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 19.0 μg/m3 (65) 65.0
 
Jan. 24, 2020, 4 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 26.3 μg/m3 (80) 80.0
 
Jan. 24, 2020, 3 p.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A N/A N/A 21.5 μg/m3 (70) 70.0
 
Jan. 24, 2020, 2 p.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A N/A N/A 23.7 μg/m3 (75) 75.0
 
Jan. 24, 2020, 1 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A N/A N/A 30.2 μg/m3 (89) 89.0
 
Jan. 24, 2020, noon N/A N/A N/A N/A N/A 5.0 ppb (7) N/A N/A N/A 29.1 μg/m3 (86) 86.0
 
Jan. 24, 2020, 11 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A N/A N/A 35.3 μg/m3 (100) 100.0
 
Jan. 24, 2020, 10 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A N/A N/A 31.4 μg/m3 (91) 91.0
 
Jan. 24, 2020, 9 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A N/A N/A 24.6 μg/m3 (77) 77.0
 
Jan. 24, 2020, 8 a.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A N/A N/A 27.6 μg/m3 (83) 83.0
 
Jan. 24, 2020, 7 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A N/A N/A 29.8 μg/m3 (88) 88.0
 
Jan. 24, 2020, 6 a.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A N/A N/A 28.1 μg/m3 (84) 84.0
 
Jan. 24, 2020, 5 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 28.9 μg/m3 (86) 86.0
 
Jan. 24, 2020, 4 a.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A N/A N/A 25.3 μg/m3 (78) 78.0
 
Jan. 24, 2020, 3 a.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A N/A N/A 25.9 μg/m3 (80) 80.0
 
Jan. 24, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 28.7 μg/m3 (86) 86.0
 
Jan. 24, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 24.4 μg/m3 (76) 76.0
 
Jan. 24, 2020, midnight N/A N/A N/A N/A N/A 3.0 ppb (4) N/A N/A N/A 28.5 μg/m3 (85) 85.0
 
Jan. 23, 2020, 11 p.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A N/A N/A 24.4 μg/m3 (76) 76.0
 
Jan. 23, 2020, 10 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 23.0 μg/m3 (73) 73.0
 
Jan. 23, 2020, 9 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 21.1 μg/m3 (69) 69.0
 
Jan. 23, 2020, 8 p.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A N/A N/A 29.2 μg/m3 (87) 87.0
 
Jan. 23, 2020, 7 p.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A N/A N/A 31.8 μg/m3 (92) 92.0
 
Jan. 23, 2020, 6 p.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A N/A N/A 28.3 μg/m3 (85) 85.0
 
Jan. 23, 2020, 5 p.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A N/A N/A 25.2 μg/m3 (78) 78.0
 
Jan. 23, 2020, 4 p.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A N/A N/A 35.9 μg/m3 (101) 101.0
 
Jan. 23, 2020, 3 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A N/A N/A 37.0 μg/m3 (104) 104.0
 
Jan. 23, 2020, 2 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) N/A N/A N/A 33.3 μg/m3 (95) 95.0
 
Jan. 23, 2020, 1 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) N/A N/A N/A 33.9 μg/m3 (97) 97.0
 
Jan. 23, 2020, noon N/A N/A N/A N/A N/A 6.0 ppb (9) N/A N/A N/A 29.4 μg/m3 (87) 87.0
 
Jan. 23, 2020, 11 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A N/A N/A 23.5 μg/m3 (74) 74.0
 
Jan. 23, 2020, 10 a.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A N/A N/A 21.1 μg/m3 (69) 69.0
 
Jan. 23, 2020, 9 a.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A N/A N/A 22.8 μg/m3 (73) 73.0
 
Jan. 23, 2020, 8 a.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A N/A N/A 21.1 μg/m3 (69) 69.0
 
Jan. 23, 2020, 7 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A N/A N/A 21.9 μg/m3 (71) 71.0
 
Jan. 23, 2020, 6 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A N/A N/A 20.1 μg/m3 (67) 67.0
 
Jan. 23, 2020, 5 a.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A N/A N/A 22.7 μg/m3 (73) 73.0
 
Jan. 23, 2020, 4 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 22.0 μg/m3 (71) 71.0
 
Jan. 23, 2020, 3 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 21.0 μg/m3 (69) 69.0
 
Jan. 23, 2020, 2 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 17.3 μg/m3 (61) 61.0
 
Jan. 23, 2020, 1 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 16.0 μg/m3 (59) 59.0
 
Jan. 23, 2020, midnight N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 15.0 μg/m3 (56) 56.0
 
Jan. 22, 2020, 11 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 14.0 μg/m3 (54) 54.0
 
Jan. 22, 2020, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 10.3 μg/m3 (43) 43.0
 
Jan. 22, 2020, 9 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 8.1 μg/m3 (34) 34.0
 
Jan. 22, 2020, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 22, 2020, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 10.6 μg/m3 (44) 44.0
 
Jan. 22, 2020, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 9.1 μg/m3 (38) 38.0
 
Jan. 22, 2020, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 22, 2020, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 6.1 μg/m3 (25) 25.0
 
Jan. 22, 2020, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 22, 2020, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 8.7 μg/m3 (36) 36.0
 
Jan. 22, 2020, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 11.7 μg/m3 (49) 49.0
 
Jan. 22, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.5 μg/m3 (27) 27.0
 
Jan. 22, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.7 μg/m3 (36) 36.0
 
Jan. 22, 2020, 10 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
 
Jan. 22, 2020, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 7.1 μg/m3 (30) 30.0
 
Jan. 22, 2020, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 22, 2020, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 8.8 μg/m3 (37) 37.0
 
Jan. 22, 2020, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 4.4 μg/m3 (18) 18.0
 
Jan. 22, 2020, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 4.9 μg/m3 (20) 20.0
 
Jan. 22, 2020, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 3.1 μg/m3 (13) 13.0
 
Jan. 22, 2020, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Jan. 22, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.9 μg/m3 (16) 16.0
 
Jan. 22, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 22, 2020, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Jan. 21, 2020, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 4.8 μg/m3 (20) 20.0
 
Jan. 21, 2020, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 5.9 μg/m3 (25) 25.0
 
Jan. 21, 2020, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 3.3 μg/m3 (14) 14.0
 
Jan. 21, 2020, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 1.2 μg/m3 (5) 5.0
 
Jan. 21, 2020, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 2.8 μg/m3 (12) 12.0
 
Jan. 21, 2020, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 2.1 μg/m3 (9) 9.0
 
Jan. 21, 2020, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 2.8 μg/m3 (12) 12.0
 
Jan. 21, 2020, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 3.8 μg/m3 (16) 16.0
 
Jan. 21, 2020, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 2.1 μg/m3 (9) 9.0
 
Jan. 21, 2020, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 4.6 μg/m3 (19) 19.0
 
Jan. 21, 2020, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 5.8 μg/m3 (24) 24.0
 
Jan. 21, 2020, noon N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 6.9 μg/m3 (29) 29.0
 
Jan. 21, 2020, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 5.2 μg/m3 (22) 22.0
 
Jan. 21, 2020, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 3.2 μg/m3 (13) 13.0
 
Jan. 21, 2020, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 3.8 μg/m3 (16) 16.0
 
Jan. 21, 2020, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 3.1 μg/m3 (13) 13.0
 
Jan. 21, 2020, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Jan. 21, 2020, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Jan. 21, 2020, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Jan. 21, 2020, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Jan. 21, 2020, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 1.2 μg/m3 (5) 5.0
 
Jan. 21, 2020, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
Jan. 21, 2020, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 1.8 μg/m3 (8) 8.0
 
Jan. 21, 2020, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 3.7 μg/m3 (15) 15.0
 
Jan. 20, 2020, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 20, 2020, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 2.2 μg/m3 (9) 9.0
 
Jan. 20, 2020, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 2.8 μg/m3 (12) 12.0
 
Jan. 20, 2020, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 2.1 μg/m3 (9) 9.0
 
Jan. 20, 2020, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 1.1 μg/m3 (5) 5.0
 
Jan. 20, 2020, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A 1.0
 
Jan. 20, 2020, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
Jan. 20, 2020, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 1.8 μg/m3 (8) 8.0
 
Jan. 20, 2020, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 2.8 μg/m3 (12) 12.0
 
Jan. 20, 2020, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Jan. 20, 2020, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 2.1 μg/m3 (9) 9.0
 
Jan. 20, 2020, noon N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
Jan. 20, 2020, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 2.8 μg/m3 (12) 12.0
 
Jan. 20, 2020, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 3.8 μg/m3 (16) 16.0
 
Jan. 20, 2020, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 4.8 μg/m3 (20) 20.0
 
Jan. 20, 2020, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 6.7 μg/m3 (28) 28.0
 
Jan. 20, 2020, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 7.8 μg/m3 (32) 32.0
 
Jan. 20, 2020, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 7.1 μg/m3 (30) 30.0
 
Jan. 20, 2020, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 8.7 μg/m3 (36) 36.0
 
Jan. 20, 2020, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 11.6 μg/m3 (48) 48.0
 
Jan. 20, 2020, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 20, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.5 μg/m3 (31) 31.0
 
Jan. 20, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.7 μg/m3 (36) 36.0
 
Jan. 20, 2020, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 7.2 μg/m3 (30) 30.0
 
Jan. 19, 2020, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 7.8 μg/m3 (32) 32.0
 
Jan. 19, 2020, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 19, 2020, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 7.1 μg/m3 (30) 30.0
 
Jan. 19, 2020, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 5.2 μg/m3 (22) 22.0
 
Jan. 19, 2020, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 3.2 μg/m3 (13) 13.0
 
Jan. 19, 2020, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 3.8 μg/m3 (16) 16.0
 
Jan. 19, 2020, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 3.1 μg/m3 (13) 13.0
 
Jan. 19, 2020, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 5.6 μg/m3 (23) 23.0
 
Jan. 19, 2020, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 6.8 μg/m3 (28) 28.0
 
Jan. 19, 2020, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 6.1 μg/m3 (25) 25.0
 
Jan. 19, 2020, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 7.7 μg/m3 (32) 32.0
 
Jan. 19, 2020, noon N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 8.8 μg/m3 (37) 37.0
 
Jan. 19, 2020, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 7.2 μg/m3 (30) 30.0
 
Jan. 19, 2020, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 5.2 μg/m3 (22) 22.0
 
Jan. 19, 2020, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 5.8 μg/m3 (24) 24.0
 
Jan. 19, 2020, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 6.8 μg/m3 (28) 28.0
 
Jan. 19, 2020, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 6.1 μg/m3 (25) 25.0
 
Jan. 19, 2020, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2020, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 6.8 μg/m3 (28) 28.0
 
Jan. 19, 2020, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 5.1 μg/m3 (21) 21.0
 
Jan. 19, 2020, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 3.2 μg/m3 (13) 13.0
 
Jan. 19, 2020, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 3.8 μg/m3 (16) 16.0
 
Jan. 19, 2020, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 5.7 μg/m3 (24) 24.0
 
Jan. 19, 2020, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 6.8 μg/m3 (28) 28.0
 
Jan. 18, 2020, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 18, 2020, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 8.7 μg/m3 (36) 36.0
 
Jan. 18, 2020, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 5.4 μg/m3 (23) 23.0
 
Jan. 18, 2020, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 4.1 μg/m3 (17) 17.0
 
Jan. 18, 2020, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 18, 2020, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 4.8 μg/m3 (20) 20.0
 
Jan. 18, 2020, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 18, 2020, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 5.8 μg/m3 (24) 24.0
 
Jan. 18, 2020, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 4.2 μg/m3 (18) 18.0
 
Jan. 18, 2020, 2 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 4.9 μg/m3 (20) 20.0
 
Jan. 18, 2020, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 18, 2020, noon N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 3.1 μg/m3 (13) 13.0
 
Jan. 18, 2020, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 3.8 μg/m3 (16) 16.0
 
Jan. 18, 2020, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 2.2 μg/m3 (9) 9.0