AQSQID: 421010048

Site Name: New

Location: Philadelphia (Richmond), PA

Reporting: True, Located: True

Current AQI: 50.0

Philadelphia (Richmond) PA, US: 39.991389, -75.080833

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Feb. 17, 2020, 7 a.m. N/A N/A N/A 30.0 ppb (28) N/A 1.0 ppb (1) 1.0 ppb (1) 0.5 ppb (6) 31.0 μg/m3 (28) 21.0 μg/m3 (69) 69.0
 
Feb. 17, 2020, 6 a.m. N/A N/A N/A 33.0 ppb (31) N/A 1.0 ppb (1) 1.0 ppb (1) 0.58 ppb (6) 32.0 μg/m3 (29) 22.8 μg/m3 (73) 73.0
 
Feb. 17, 2020, 5 a.m. N/A N/A N/A 34.0 ppb (31) N/A 1.0 ppb (1) 1.0 ppb (1) 0.67 ppb (7) 30.0 μg/m3 (27) 13.0 μg/m3 (52) 52.0
 
Feb. 17, 2020, 4 a.m. N/A N/A N/A 32.0 ppb (30) N/A 1.0 ppb (1) 3.0 ppb (2) 0.42 ppb (5) 24.0 μg/m3 (22) 15.0 μg/m3 (56) 56.0
 
Feb. 17, 2020, 3 a.m. N/A N/A N/A 21.0 ppb (19) N/A 0.0 ppb (0) 13.0 ppb (10) 0.24 ppb (3) 25.0 μg/m3 (23) 15.8 μg/m3 (58) 58.0
 
Feb. 17, 2020, 2 a.m. N/A N/A N/A 27.0 ppb (25) N/A 0.0 ppb (0) 9.0 ppb (7) 0.41 ppb (5) 20.0 μg/m3 (18) 9.9 μg/m3 (41) 41.0
 
Feb. 17, 2020, 1 a.m. N/A N/A N/A 26.0 ppb (24) N/A 0.0 ppb (0) 8.0 ppb (6) 0.32 ppb (4) 20.0 μg/m3 (18) 8.0 μg/m3 (33) 33.0
 
Feb. 17, 2020, midnight N/A N/A N/A 31.0 ppb (29) N/A N/A N/A 0.39 ppb (4) 18.0 μg/m3 (16) 7.9 μg/m3 (33) 33.0
 
Feb. 16, 2020, 11 p.m. N/A N/A N/A 32.0 ppb (30) N/A 1.0 ppb (1) 9.0 ppb (7) N/A 16.0 μg/m3 (15) 7.0 μg/m3 (29) 30.0
 
Feb. 16, 2020, 10 p.m. N/A N/A N/A 14.0 ppb (13) N/A 1.0 ppb (1) 27.0 ppb (21) 0.15 ppb (2) 14.0 μg/m3 (13) 7.0 μg/m3 (29) 29.0
 
Feb. 16, 2020, 9 p.m. N/A N/A N/A 10.0 ppb (9) N/A 1.0 ppb (1) 31.0 ppb (24) 0.16 ppb (2) 16.0 μg/m3 (15) 8.0 μg/m3 (33) 33.0
 
Feb. 16, 2020, 8 p.m. N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) 30.0 ppb (23) 0.17 ppb (2) 17.0 μg/m3 (15) 8.0 μg/m3 (33) 33.0
 
Feb. 16, 2020, 7 p.m. N/A N/A N/A 8.0 ppb (7) N/A 1.0 ppb (1) 31.0 ppb (24) 0.17 ppb (2) 16.0 μg/m3 (15) 7.9 μg/m3 (33) 33.0
 
Feb. 16, 2020, 6 p.m. N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) 30.0 ppb (23) 0.18 ppb (2) 17.0 μg/m3 (15) 7.0 μg/m3 (29) 29.0
 
Feb. 16, 2020, 5 p.m. N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) 28.0 ppb (22) 0.18 ppb (2) 17.0 μg/m3 (15) 9.9 μg/m3 (41) 41.0
 
Feb. 16, 2020, 4 p.m. N/A N/A N/A 11.0 ppb (10) N/A 2.0 ppb (3) 25.0 ppb (19) 0.18 ppb (2) 17.0 μg/m3 (15) 5.9 μg/m3 (25) 25.0
 
Feb. 16, 2020, 3 p.m. N/A N/A N/A 11.0 ppb (10) N/A 2.0 ppb (3) 26.0 ppb (20) 0.18 ppb (2) 15.0 μg/m3 (14) 4.0 μg/m3 (17) 20.0
 
Feb. 16, 2020, 2 p.m. N/A N/A N/A 10.0 ppb (9) N/A 1.0 ppb (1) 26.0 ppb (20) 0.16 ppb (2) 15.0 μg/m3 (14) 6.0 μg/m3 (25) 25.0
 
Feb. 16, 2020, 1 p.m. N/A N/A N/A 23.0 ppb (21) N/A 0.0 ppb (0) 12.0 ppb (9) 0.25 ppb (3) 16.0 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
Feb. 16, 2020, noon N/A N/A N/A 28.0 ppb (26) N/A 0.0 ppb (0) 6.0 ppb (5) 0.22 ppb (2) 15.0 μg/m3 (14) 8.9 μg/m3 (37) 37.0
 
Feb. 16, 2020, 11 a.m. N/A N/A N/A 27.0 ppb (25) N/A 0.0 ppb (0) 8.0 ppb (6) 0.22 ppb (2) 14.0 μg/m3 (13) 4.0 μg/m3 (17) 25.0
 
Feb. 16, 2020, 10 a.m. N/A N/A N/A 27.0 ppb (25) N/A 0.0 ppb (0) 8.0 ppb (6) 0.21 ppb (2) 14.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
Feb. 16, 2020, 9 a.m. N/A N/A N/A 24.0 ppb (22) N/A 0.0 ppb (0) 10.0 ppb (8) 0.19 ppb (2) 15.0 μg/m3 (14) 6.0 μg/m3 (25) 25.0
 
Feb. 16, 2020, 8 a.m. N/A N/A N/A 15.0 ppb (14) N/A 0.0 ppb (0) 19.0 ppb (15) 0.17 ppb (2) 15.0 μg/m3 (14) 6.0 μg/m3 (25) 25.0
 
Feb. 16, 2020, 7 a.m. N/A N/A N/A 17.0 ppb (16) N/A 0.0 ppb (0) 17.0 ppb (13) 0.18 ppb (2) 15.0 μg/m3 (14) 7.0 μg/m3 (29) 29.0
 
Feb. 16, 2020, 6 a.m. N/A N/A N/A 19.0 ppb (18) N/A 0.0 ppb (0) 15.0 ppb (12) 0.2 ppb (2) 14.0 μg/m3 (13) 7.0 μg/m3 (29) 29.0
 
Feb. 16, 2020, 5 a.m. N/A N/A N/A 18.0 ppb (17) N/A 0.0 ppb (0) 17.0 ppb (13) 0.18 ppb (2) 15.0 μg/m3 (14) 7.0 μg/m3 (29) 29.0
 
Feb. 16, 2020, 4 a.m. N/A N/A N/A 14.0 ppb (13) N/A 0.0 ppb (0) 22.0 ppb (17) 0.17 ppb (2) 15.0 μg/m3 (14) 7.0 μg/m3 (29) 29.0
 
Feb. 16, 2020, 3 a.m. N/A N/A N/A 16.0 ppb (15) N/A 0.0 ppb (0) 21.0 ppb (16) 0.18 ppb (2) 14.0 μg/m3 (13) 6.9 μg/m3 (29) 29.0
 
Feb. 16, 2020, 2 a.m. N/A N/A N/A 15.0 ppb (14) N/A 0.0 ppb (0) 23.0 ppb (18) 0.17 ppb (2) 13.0 μg/m3 (12) 3.9 μg/m3 (16) 18.0
 
Feb. 16, 2020, 1 a.m. N/A N/A N/A 12.0 ppb (11) N/A 0.0 ppb (0) 27.0 ppb (21) 0.14 ppb (2) 10.0 μg/m3 (9) 2.0 μg/m3 (8) 21.0
 
Feb. 16, 2020, midnight N/A N/A N/A 9.0 ppb (8) N/A N/A 32.0 ppb (25) 0.11 ppb (1) 8.0 μg/m3 (7) 2.0 μg/m3 (8) 25.0
 
Feb. 15, 2020, 11 p.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 34.0 ppb (26) N/A 8.0 μg/m3 (7) 3.0 μg/m3 (12) 26.0
 
Feb. 15, 2020, 10 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 36.0 ppb (28) 0.1 ppb (1) 8.0 μg/m3 (7) 3.0 μg/m3 (12) 28.0
 
Feb. 15, 2020, 9 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 35.0 ppb (27) 0.11 ppb (1) 10.0 μg/m3 (9) 3.0 μg/m3 (12) 27.0
 
Feb. 15, 2020, 8 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 34.0 ppb (26) 0.13 ppb (1) 12.0 μg/m3 (11) 3.0 μg/m3 (12) 26.0
 
Feb. 15, 2020, 7 p.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 33.0 ppb (25) 0.13 ppb (1) 10.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
Feb. 15, 2020, 6 p.m. N/A N/A N/A 10.0 ppb (9) N/A 0.0 ppb (0) 32.0 ppb (25) 0.13 ppb (1) 12.0 μg/m3 (11) 8.9 μg/m3 (37) 37.0
 
Feb. 15, 2020, 5 p.m. N/A N/A N/A 14.0 ppb (13) N/A 0.0 ppb (0) 29.0 ppb (22) 0.2 ppb (2) 12.0 μg/m3 (11) 5.9 μg/m3 (25) 25.0
 
Feb. 15, 2020, 4 p.m. N/A N/A N/A 13.0 ppb (12) N/A 0.0 ppb (0) 30.0 ppb (23) 0.19 ppb (2) 13.0 μg/m3 (12) 5.0 μg/m3 (21) 23.0
 
Feb. 15, 2020, 3 p.m. N/A N/A N/A 14.0 ppb (13) N/A 0.0 ppb (0) 28.0 ppb (22) 0.21 ppb (2) 12.0 μg/m3 (11) 5.9 μg/m3 (25) 25.0
 
Feb. 15, 2020, 2 p.m. N/A N/A N/A 13.0 ppb (12) N/A 0.0 ppb (0) 27.0 ppb (21) 0.2 ppb (2) 12.0 μg/m3 (11) 5.0 μg/m3 (21) 21.0
 
Feb. 15, 2020, 1 p.m. N/A N/A N/A 13.0 ppb (12) N/A 0.0 ppb (0) 25.0 ppb (19) 0.16 ppb (2) 10.0 μg/m3 (9) 5.9 μg/m3 (25) 25.0
 
Feb. 15, 2020, noon N/A N/A N/A 13.0 ppb (12) N/A 0.0 ppb (0) 24.0 ppb (18) 0.17 ppb (2) 10.0 μg/m3 (9) 3.9 μg/m3 (16) 18.0
 
Feb. 15, 2020, 11 a.m. N/A N/A N/A 13.0 ppb (12) N/A 0.0 ppb (0) 23.0 ppb (18) 0.16 ppb (2) 11.0 μg/m3 (10) 2.9 μg/m3 (12) 18.0
 
Feb. 15, 2020, 10 a.m. N/A N/A N/A 13.0 ppb (12) N/A 0.0 ppb (0) 24.0 ppb (18) 0.14 ppb (2) 10.0 μg/m3 (9) 1.9 μg/m3 (8) 18.0
 
Feb. 15, 2020, 9 a.m. N/A N/A N/A 9.0 ppb (8) N/A 0.0 ppb (0) 28.0 ppb (22) 0.12 ppb (1) 9.0 μg/m3 (8) 1.0 μg/m3 (4) 22.0
 
Feb. 15, 2020, 8 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 29.0 ppb (22) 0.12 ppb (1) 9.0 μg/m3 (8) 4.0 μg/m3 (17) 22.0
 
Feb. 15, 2020, 7 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 31.0 ppb (24) 0.12 ppb (1) 9.0 μg/m3 (8) 5.9 μg/m3 (25) 25.0
 
Feb. 15, 2020, 6 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 30.0 ppb (23) 0.12 ppb (1) 8.0 μg/m3 (7) 2.0 μg/m3 (8) 23.0
 
Feb. 15, 2020, 5 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 30.0 ppb (23) 0.16 ppb (2) 10.0 μg/m3 (9) 4.0 μg/m3 (17) 23.0
 
Feb. 15, 2020, 4 a.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 32.0 ppb (25) 0.12 ppb (1) 8.0 μg/m3 (7) 4.0 μg/m3 (17) 25.0
 
Feb. 15, 2020, 3 a.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 30.0 ppb (23) 0.15 ppb (2) 10.0 μg/m3 (9) 3.9 μg/m3 (16) 23.0
 
Feb. 15, 2020, 2 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 29.0 ppb (22) 0.15 ppb (2) 10.0 μg/m3 (9) 3.0 μg/m3 (12) 22.0
 
Feb. 15, 2020, 1 a.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 31.0 ppb (24) 0.13 ppb (1) 9.0 μg/m3 (8) 3.0 μg/m3 (12) 24.0
 
Feb. 15, 2020, midnight N/A N/A N/A 9.0 ppb (8) N/A N/A N/A 0.15 ppb (2) 9.0 μg/m3 (8) 3.0 μg/m3 (12) 12.0
 
Feb. 14, 2020, 11 p.m. N/A N/A N/A 11.0 ppb (10) N/A 0.0 ppb (0) 28.0 ppb (22) N/A 8.0 μg/m3 (7) 3.0 μg/m3 (12) 22.0
 
Feb. 14, 2020, 10 p.m. N/A N/A N/A 9.0 ppb (8) N/A 0.0 ppb (0) 30.0 ppb (23) 0.16 ppb (2) 9.0 μg/m3 (8) 3.9 μg/m3 (16) 23.0
 
Feb. 14, 2020, 9 p.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (25) 0.15 ppb (2) 11.0 μg/m3 (10) 3.0 μg/m3 (12) 25.0
 
Feb. 14, 2020, 8 p.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 32.0 ppb (25) 0.15 ppb (2) 12.0 μg/m3 (11) 3.0 μg/m3 (12) 25.0
 
Feb. 14, 2020, 7 p.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (25) 0.18 ppb (2) 15.0 μg/m3 (14) 4.9 μg/m3 (20) 25.0
 
Feb. 14, 2020, 6 p.m. N/A N/A N/A 9.0 ppb (8) N/A 0.0 ppb (0) 30.0 ppb (23) 0.13 ppb (1) 27.0 μg/m3 (25) 2.9 μg/m3 (12) 25.0
 
Feb. 14, 2020, 5 p.m. N/A N/A N/A 11.0 ppb (10) N/A 0.0 ppb (0) 28.0 ppb (22) 0.15 ppb (2) 15.0 μg/m3 (14) 2.0 μg/m3 (8) 22.0
 
Feb. 14, 2020, 4 p.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 32.0 ppb (25) 0.13 ppb (1) 12.0 μg/m3 (11) 5.0 μg/m3 (21) 25.0
 
Feb. 14, 2020, 3 p.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 32.0 ppb (25) 0.14 ppb (2) 15.0 μg/m3 (14) 5.9 μg/m3 (25) 25.0
 
Feb. 14, 2020, 2 p.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 30.0 ppb (23) 0.15 ppb (2) 12.0 μg/m3 (11) 4.0 μg/m3 (17) 23.0
 
Feb. 14, 2020, 1 p.m. N/A N/A N/A 11.0 ppb (10) N/A 0.0 ppb (0) 28.0 ppb (22) 0.16 ppb (2) 12.0 μg/m3 (11) 4.0 μg/m3 (17) 22.0
 
Feb. 14, 2020, noon N/A N/A N/A 15.0 ppb (14) N/A 0.0 ppb (0) 25.0 ppb (19) 0.18 ppb (2) 13.0 μg/m3 (12) 5.0 μg/m3 (21) 21.0
 
Feb. 14, 2020, 11 a.m. N/A N/A N/A 15.0 ppb (14) N/A 0.0 ppb (0) 21.0 ppb (16) 0.23 ppb (3) 14.0 μg/m3 (13) 5.9 μg/m3 (25) 25.0
 
Feb. 14, 2020, 10 a.m. N/A N/A N/A 25.0 ppb (23) N/A 1.0 ppb (1) 12.0 ppb (9) 0.27 ppb (3) 11.0 μg/m3 (10) 4.9 μg/m3 (20) 23.0
 
Feb. 14, 2020, 9 a.m. N/A N/A N/A 17.0 ppb (16) N/A 0.0 ppb (0) 19.0 ppb (15) 0.21 ppb (2) 9.0 μg/m3 (8) 2.0 μg/m3 (8) 16.0
 
Feb. 14, 2020, 8 a.m. N/A N/A N/A 13.0 ppb (12) N/A 0.0 ppb (0) 24.0 ppb (18) 0.18 ppb (2) 7.0 μg/m3 (6) 3.0 μg/m3 (12) 18.0
 
Feb. 14, 2020, 7 a.m. N/A N/A N/A 11.0 ppb (10) N/A 0.0 ppb (0) 27.0 ppb (21) 0.19 ppb (2) 7.0 μg/m3 (6) 3.0 μg/m3 (12) 21.0
 
Feb. 14, 2020, 6 a.m. N/A N/A N/A 9.0 ppb (8) N/A 0.0 ppb (0) 29.0 ppb (22) 0.18 ppb (2) 7.0 μg/m3 (6) 2.9 μg/m3 (12) 22.0
 
Feb. 14, 2020, 5 a.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 31.0 ppb (24) 0.17 ppb (2) 8.0 μg/m3 (7) 1.9 μg/m3 (8) 24.0
 
Feb. 14, 2020, 4 a.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 29.0 ppb (22) 0.2 ppb (2) 8.0 μg/m3 (7) 0.0 μg/m3 (0) 22.0
 
Feb. 14, 2020, 3 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 31.0 ppb (24) 0.18 ppb (2) 8.0 μg/m3 (7) 3.0 μg/m3 (12) 24.0
 
Feb. 14, 2020, 2 a.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 26.0 ppb (20) 0.21 ppb (2) 8.0 μg/m3 (7) 4.0 μg/m3 (17) 20.0
 
Feb. 14, 2020, 1 a.m. N/A N/A N/A 10.0 ppb (9) N/A 0.0 ppb (0) 18.0 ppb (14) 0.24 ppb (3) 8.0 μg/m3 (7) 5.0 μg/m3 (21) 21.0
 
Feb. 14, 2020, midnight N/A N/A N/A 11.0 ppb (10) N/A N/A 16.0 ppb (12) 0.27 ppb (3) 11.0 μg/m3 (10) 7.0 μg/m3 (29) 29.0
 
Feb. 13, 2020, 11 p.m. N/A N/A N/A 12.0 ppb (11) N/A 0.0 ppb (0) 14.0 ppb (11) N/A 12.0 μg/m3 (11) 10.9 μg/m3 (45) 45.0
 
Feb. 13, 2020, 10 p.m. N/A N/A N/A 17.0 ppb (16) N/A 1.0 ppb (1) 8.0 ppb (6) 0.33 ppb (4) 16.0 μg/m3 (15) 7.9 μg/m3 (33) 33.0
 
Feb. 13, 2020, 9 p.m. N/A N/A N/A 22.0 ppb (20) N/A 1.0 ppb (1) 4.0 ppb (3) 0.41 ppb (5) 18.0 μg/m3 (16) 7.0 μg/m3 (29) 29.0
 
Feb. 13, 2020, 8 p.m. N/A N/A N/A 25.0 ppb (23) N/A 1.0 ppb (1) 3.0 ppb (2) 0.46 ppb (5) 16.0 μg/m3 (15) 8.0 μg/m3 (33) 33.0
 
Feb. 13, 2020, 7 p.m. N/A N/A N/A 27.0 ppb (25) N/A 1.0 ppb (1) 2.0 ppb (2) 0.49 ppb (5) 20.0 μg/m3 (18) 10.9 μg/m3 (45) 45.0
 
Feb. 13, 2020, 6 p.m. N/A N/A N/A 25.0 ppb (23) N/A 1.0 ppb (1) 5.0 ppb (4) 0.39 ppb (4) 27.0 μg/m3 (25) 9.0 μg/m3 (38) 38.0
 
Feb. 13, 2020, 5 p.m. N/A N/A N/A 28.0 ppb (26) N/A 1.0 ppb (1) 3.0 ppb (2) 0.47 ppb (5) 20.0 μg/m3 (18) 11.0 μg/m3 (46) 46.0
 
Feb. 13, 2020, 4 p.m. N/A N/A N/A 30.0 ppb (28) N/A 1.0 ppb (1) 2.0 ppb (2) 0.48 ppb (5) 23.0 μg/m3 (21) 14.9 μg/m3 (56) 56.0
 
Feb. 13, 2020, 3 p.m. N/A N/A N/A 30.0 ppb (28) N/A 1.0 ppb (1) 2.0 ppb (2) 0.41 ppb (5) 24.0 μg/m3 (22) 12.8 μg/m3 (52) 52.0
 
Feb. 13, 2020, 2 p.m. N/A N/A N/A 29.0 ppb (27) N/A 1.0 ppb (1) 4.0 ppb (3) 0.39 ppb (4) 19.0 μg/m3 (17) 6.0 μg/m3 (25) 27.0
 
Feb. 13, 2020, 1 p.m. N/A N/A N/A 26.0 ppb (24) N/A 0.0 ppb (0) 8.0 ppb (6) 0.33 ppb (4) 15.0 μg/m3 (14) 6.0 μg/m3 (25) 25.0
 
Feb. 13, 2020, noon N/A N/A N/A 18.0 ppb (17) N/A 0.0 ppb (0) 16.0 ppb (12) 0.24 ppb (3) 14.0 μg/m3 (13) 7.9 μg/m3 (33) 33.0
 
Feb. 13, 2020, 11 a.m. N/A N/A N/A 14.0 ppb (13) N/A 0.0 ppb (0) 19.0 ppb (15) 0.22 ppb (2) 15.0 μg/m3 (14) 6.9 μg/m3 (29) 29.0
 
Feb. 13, 2020, 10 a.m. N/A N/A N/A 20.0 ppb (19) N/A 0.0 ppb (0) 14.0 ppb (11) 0.26 ppb (3) 15.0 μg/m3 (14) 3.0 μg/m3 (12) 19.0
 
Feb. 13, 2020, 9 a.m. N/A N/A N/A 17.0 ppb (16) N/A 0.0 ppb (0) 19.0 ppb (15) 0.25 ppb (3) 14.0 μg/m3 (13) 5.0 μg/m3 (21) 21.0
 
Feb. 13, 2020, 8 a.m. N/A N/A N/A 10.0 ppb (9) N/A 0.0 ppb (0) 27.0 ppb (21) 0.2 ppb (2) 12.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
Feb. 13, 2020, 7 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 32.0 ppb (25) 0.18 ppb (2) 10.0 μg/m3 (9) 5.9 μg/m3 (25) 25.0
 
Feb. 13, 2020, 6 a.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 31.0 ppb (24) 0.17 ppb (2) 13.0 μg/m3 (12) 5.0 μg/m3 (21) 24.0
 
Feb. 13, 2020, 5 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 29.0 ppb (22) 0.18 ppb (2) 15.0 μg/m3 (14) 8.0 μg/m3 (33) 33.0
 
Feb. 13, 2020, 4 a.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 28.0 ppb (22) 0.18 ppb (2) 15.0 μg/m3 (14) 10.9 μg/m3 (45) 45.0
 
Feb. 13, 2020, 3 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (24) 0.18 ppb (2) 16.0 μg/m3 (15) 9.0 μg/m3 (38) 38.0
 
Feb. 13, 2020, 2 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 27.0 ppb (21) 0.19 ppb (2) 18.0 μg/m3 (16) 10.9 μg/m3 (45) 45.0
 
Feb. 13, 2020, 1 a.m. N/A N/A N/A 9.0 ppb (8) N/A 0.0 ppb (0) 26.0 ppb (20) 0.2 ppb (2) 18.0 μg/m3 (16) 7.0 μg/m3 (29) 29.0
 
Feb. 13, 2020, midnight N/A N/A N/A 11.0 ppb (10) N/A N/A N/A 0.19 ppb (2) 19.0 μg/m3 (17) 8.0 μg/m3 (33) 33.0
 
Feb. 12, 2020, 11 p.m. N/A N/A N/A 15.0 ppb (14) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 23.0 μg/m3 (21) 9.9 μg/m3 (41) 41.0
 
Feb. 12, 2020, 10 p.m. N/A N/A N/A 10.0 ppb (9) N/A 0.0 ppb (0) 31.0 ppb (24) 0.18 ppb (2) 19.0 μg/m3 (17) 7.0 μg/m3 (29) 29.0
 
Feb. 12, 2020, 9 p.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 31.0 ppb (24) 0.19 ppb (2) 21.0 μg/m3 (19) 10.0 μg/m3 (42) 42.0
 
Feb. 12, 2020, 8 p.m. N/A N/A N/A 12.0 ppb (11) N/A 1.0 ppb (1) 29.0 ppb (22) 0.2 ppb (2) 24.0 μg/m3 (22) 11.9 μg/m3 (50) 50.0
 
Feb. 12, 2020, 7 p.m. N/A N/A N/A 11.0 ppb (10) N/A 0.0 ppb (0) 32.0 ppb (25) 0.19 ppb (2) 24.0 μg/m3 (22) 10.9 μg/m3 (45) 45.0
 
Feb. 12, 2020, 6 p.m. N/A N/A N/A 10.0 ppb (9) N/A 0.0 ppb (0) 32.0 ppb (25) 0.21 ppb (2) 25.0 μg/m3 (23) 7.9 μg/m3 (33) 33.0
 
Feb. 12, 2020, 5 p.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 33.0 ppb (25) 0.18 ppb (2) 21.0 μg/m3 (19) 7.0 μg/m3 (29) 29.0
 
Feb. 12, 2020, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.18 ppb (2) 16.0 μg/m3 (15) 7.0 μg/m3 (29) 29.0
 
Feb. 12, 2020, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.19 ppb (2) 16.0 μg/m3 (15) 9.0 μg/m3 (38) 38.0
 
Feb. 12, 2020, 2 p.m. N/A N/A N/A 11.0 ppb (10) N/A 0.0 ppb (0) 27.0 ppb (21) 0.21 ppb (2) 19.0 μg/m3 (17) 14.1 μg/m3 (54) 54.0
 
Feb. 12, 2020, 1 p.m. N/A N/A N/A 21.0 ppb (19) N/A 1.0 ppb (1) 17.0 ppb (13) 0.31 ppb (3) 24.0 μg/m3 (22) 19.8 μg/m3 (67) 67.0
 
Feb. 12, 2020, noon N/A N/A N/A 28.0 ppb (26) N/A 1.0 ppb (1) 8.0 ppb (6) 0.37 ppb (4) 26.0 μg/m3 (24) 8.9 μg/m3 (37) 37.0
 
Feb. 12, 2020, 11 a.m. N/A N/A N/A 21.0 ppb (19) N/A 0.0 ppb (0) 13.0 ppb (10) 0.31 ppb (3) 21.0 μg/m3 (19) 7.0 μg/m3 (29) 29.0
 
Feb. 12, 2020, 10 a.m. N/A N/A N/A 20.0 ppb (19) N/A N/A 12.0 ppb (9) 0.28 ppb (3) 20.0 μg/m3 (18) 7.9 μg/m3 (33) 33.0
 
Feb. 12, 2020, 9 a.m. N/A N/A N/A 11.0 ppb (10) N/A N/A 22.0 ppb (17) 0.21 ppb (2) 17.0 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
Feb. 12, 2020, 8 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 28.0 ppb (22) 0.18 ppb (2) 15.0 μg/m3 (14) 5.9 μg/m3 (25) 25.0
 
Feb. 12, 2020, 7 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 29.0 ppb (22) N/A 12.0 μg/m3 (11) 2.0 μg/m3 (8) 22.0
 
Feb. 12, 2020, 6 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 33.0 ppb (25) N/A 9.0 μg/m3 (8) 2.0 μg/m3 (8) 25.0
 
Feb. 12, 2020, 5 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 33.0 ppb (25) 0.18 ppb (2) 8.0 μg/m3 (7) 3.0 μg/m3 (12) 25.0
 
Feb. 12, 2020, 4 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 28.0 ppb (22) 0.21 ppb (2) 9.0 μg/m3 (8) 3.0 μg/m3 (12) 22.0
 
Feb. 12, 2020, 3 a.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 26.0 ppb (20) 0.23 ppb (3) 9.0 μg/m3 (8) 4.0 μg/m3 (17) 20.0
 
Feb. 12, 2020, 2 a.m. N/A N/A N/A 11.0 ppb (10) N/A 0.0 ppb (0) 17.0 ppb (13) 0.27 ppb (3) 14.0 μg/m3 (13) 5.0 μg/m3 (21) 21.0
 
Feb. 12, 2020, 1 a.m. N/A N/A N/A 11.0 ppb (10) N/A 0.0 ppb (0) 17.0 ppb (13) 0.28 ppb (3) 14.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
Feb. 12, 2020, midnight N/A N/A N/A 18.0 ppb (17) N/A N/A 8.0 ppb (6) 0.37 ppb (4) 15.0 μg/m3 (14) 6.9 μg/m3 (29) 29.0
 
Feb. 11, 2020, 11 p.m. N/A N/A N/A 21.0 ppb (19) N/A 1.0 ppb (1) 4.0 ppb (3) N/A 16.0 μg/m3 (15) 5.9 μg/m3 (25) 25.0
 
Feb. 11, 2020, 10 p.m. N/A N/A N/A 20.0 ppb (19) N/A 1.0 ppb (1) 6.0 ppb (5) 0.4 ppb (4) 14.0 μg/m3 (13) 3.0 μg/m3 (12) 19.0
 
Feb. 11, 2020, 9 p.m. N/A N/A N/A 17.0 ppb (16) N/A 1.0 ppb (1) 10.0 ppb (8) 0.39 ppb (4) 12.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
Feb. 11, 2020, 8 p.m. N/A N/A N/A 15.0 ppb (14) N/A 0.0 ppb (0) 11.0 ppb (8) 0.38 ppb (4) 11.0 μg/m3 (10) 6.9 μg/m3 (29) 29.0
 
Feb. 11, 2020, 7 p.m. N/A N/A N/A 19.0 ppb (18) N/A 0.0 ppb (0) 7.0 ppb (5) 0.42 ppb (5) 12.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
Feb. 11, 2020, 6 p.m. N/A N/A N/A 22.0 ppb (20) N/A 0.0 ppb (0) 6.0 ppb (5) 0.44 ppb (5) 13.0 μg/m3 (12) 8.0 μg/m3 (33) 33.0
 
Feb. 11, 2020, 5 p.m. N/A N/A N/A 21.0 ppb (19) N/A 1.0 ppb (1) 6.0 ppb (5) 0.41 ppb (5) 13.0 μg/m3 (12) 10.0 μg/m3 (42) 42.0
 
Feb. 11, 2020, 4 p.m. N/A N/A N/A 26.0 ppb (24) N/A 1.0 ppb (1) 3.0 ppb (2) 0.53 ppb (6) 16.0 μg/m3 (15) 9.9 μg/m3 (41) 41.0
 
Feb. 11, 2020, 3 p.m. N/A N/A N/A 24.0 ppb (22) N/A 1.0 ppb (1) 3.0 ppb (2) 0.43 ppb (5) 15.0 μg/m3 (14) 7.0 μg/m3 (29) 29.0
 
Feb. 11, 2020, 2 p.m. N/A N/A N/A 23.0 ppb (21) N/A 0.0 ppb (0) 3.0 ppb (2) 0.42 ppb (5) 12.0 μg/m3 (11) 10.9 μg/m3 (45) 45.0
 
Feb. 11, 2020, 1 p.m. N/A N/A N/A 26.0 ppb (24) N/A 1.0 ppb (1) 1.0 ppb (1) 0.54 ppb (6) 14.0 μg/m3 (13) 5.9 μg/m3 (25) 25.0
 
Feb. 11, 2020, noon N/A N/A N/A 28.0 ppb (26) N/A 1.0 ppb (1) N/A 0.56 ppb (6) 13.0 μg/m3 (12) 5.0 μg/m3 (21) 26.0
 
Feb. 11, 2020, 11 a.m. N/A N/A N/A 27.0 ppb (25) N/A 1.0 ppb (1) 0.0 ppb (0) 0.48 ppb (5) 12.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
Feb. 11, 2020, 10 a.m. N/A N/A N/A 24.0 ppb (22) N/A 1.0 ppb (1) 1.0 ppb (1) 0.38 ppb (4) 12.0 μg/m3 (11) 9.0 μg/m3 (38) 38.0
 
Feb. 11, 2020, 9 a.m. N/A N/A N/A 22.0 ppb (20) N/A 0.0 ppb (0) 3.0 ppb (2) 0.32 ppb (4) 14.0 μg/m3 (13) 10.0 μg/m3 (42) 42.0
 
Feb. 11, 2020, 8 a.m. N/A N/A N/A 21.0 ppb (19) N/A 0.0 ppb (0) 5.0 ppb (4) 0.29 ppb (3) 23.0 μg/m3 (21) 15.0 μg/m3 (56) 56.0
 
Feb. 11, 2020, 7 a.m. N/A N/A N/A 15.0 ppb (14) N/A 0.0 ppb (0) 9.0 ppb (7) 0.27 ppb (3) 30.0 μg/m3 (27) 16.9 μg/m3 (60) 60.0
 
Feb. 11, 2020, 6 a.m. N/A N/A N/A 19.0 ppb (18) N/A 0.0 ppb (0) 7.0 ppb (5) 0.29 ppb (3) 27.0 μg/m3 (25) 15.9 μg/m3 (58) 58.0
 
Feb. 11, 2020, 5 a.m. N/A N/A N/A 23.0 ppb (21) N/A 0.0 ppb (0) 3.0 ppb (2) 0.3 ppb (3) 24.0 μg/m3 (22) 13.9 μg/m3 (54) 54.0
 
Feb. 11, 2020, 4 a.m. N/A N/A N/A 26.0 ppb (24) N/A 0.0 ppb (0) 2.0 ppb (2) 0.3 ppb (3) 23.0 μg/m3 (21) 11.0 μg/m3 (46) 46.0
 
Feb. 11, 2020, 3 a.m. N/A N/A N/A 17.0 ppb (16) N/A 1.0 ppb (1) 13.0 ppb (10) 0.26 ppb (3) 18.0 μg/m3 (16) 10.9 μg/m3 (45) 45.0
 
Feb. 11, 2020, 2 a.m. N/A N/A N/A 15.0 ppb (14) N/A 0.0 ppb (0) 17.0 ppb (13) 0.25 ppb (3) 17.0 μg/m3 (15) 9.0 μg/m3 (38) 38.0
 
Feb. 11, 2020, 1 a.m. N/A N/A N/A 14.0 ppb (13) N/A 0.0 ppb (0) 18.0 ppb (14) 0.24 ppb (3) 16.0 μg/m3 (15) 10.9 μg/m3 (45) 45.0
 
Feb. 11, 2020, midnight N/A N/A N/A 16.0 ppb (15) N/A N/A N/A 0.24 ppb (3) 17.0 μg/m3 (15) 8.9 μg/m3 (37) 37.0
 
Feb. 10, 2020, 11 p.m. N/A N/A N/A 17.0 ppb (16) N/A 0.0 ppb (0) 17.0 ppb (13) N/A 13.0 μg/m3 (12) 4.0 μg/m3 (17) 17.0
 
Feb. 10, 2020, 10 p.m. N/A N/A N/A 15.0 ppb (14) N/A 1.0 ppb (1) 19.0 ppb (15) 0.25 ppb (3) 14.0 μg/m3 (13) 5.0 μg/m3 (21) 21.0
 
Feb. 10, 2020, 9 p.m. N/A N/A N/A 14.0 ppb (13) N/A 0.0 ppb (0) 21.0 ppb (16) 0.27 ppb (3) 13.0 μg/m3 (12) 6.9 μg/m3 (29) 29.0
 
Feb. 10, 2020, 8 p.m. N/A N/A N/A 14.0 ppb (13) N/A 0.0 ppb (0) 21.0 ppb (16) 0.26 ppb (3) 12.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
Feb. 10, 2020, 7 p.m. N/A N/A N/A 13.0 ppb (12) N/A 0.0 ppb (0) 22.0 ppb (17) 0.23 ppb (3) 15.0 μg/m3 (14) 7.0 μg/m3 (29) 29.0
 
Feb. 10, 2020, 6 p.m. N/A N/A N/A 12.0 ppb (11) N/A 0.0 ppb (0) 24.0 ppb (18) 0.22 ppb (2) 13.0 μg/m3 (12) 7.9 μg/m3 (33) 33.0
 
Feb. 10, 2020, 5 p.m. N/A N/A N/A 12.0 ppb (11) N/A 0.0 ppb (0) 24.0 ppb (18) 0.2 ppb (2) 12.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
Feb. 10, 2020, 4 p.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 28.0 ppb (22) 0.2 ppb (2) 10.0 μg/m3 (9) 6.9 μg/m3 (29) 29.0
 
Feb. 10, 2020, 3 p.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 27.0 ppb (21) 0.2 ppb (2) 11.0 μg/m3 (10) 5.0 μg/m3 (21) 21.0
 
Feb. 10, 2020, 2 p.m. N/A N/A N/A 9.0 ppb (8) N/A 0.0 ppb (0) 26.0 ppb (20) 0.2 ppb (2) 13.0 μg/m3 (12) 7.9 μg/m3 (33) 33.0
 
Feb. 10, 2020, 1 p.m. N/A N/A N/A 11.0 ppb (10) N/A 0.0 ppb (0) 24.0 ppb (18) 0.2 ppb (2) 21.0 μg/m3 (19) 5.0 μg/m3 (21) 21.0
 
Feb. 10, 2020, noon N/A N/A N/A 11.0 ppb (10) N/A 0.0 ppb (0) 24.0 ppb (18) 0.2 ppb (2) 14.0 μg/m3 (13) 5.0 μg/m3 (21) 21.0
 
Feb. 10, 2020, 11 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 28.0 ppb (22) 0.19 ppb (2) 14.0 μg/m3 (13) 6.9 μg/m3 (29) 29.0
 
Feb. 10, 2020, 10 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 29.0 ppb (22) 0.18 ppb (2) 13.0 μg/m3 (12) 4.9 μg/m3 (20) 22.0
 
Feb. 10, 2020, 9 a.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 31.0 ppb (24) 0.18 ppb (2) 13.0 μg/m3 (12) 3.0 μg/m3 (12) 24.0
 
Feb. 10, 2020, 8 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 34.0 ppb (26) 0.17 ppb (2) 15.0 μg/m3 (14) 3.0 μg/m3 (12) 26.0