ID: 2295

AQSQID: 421010048

Site Name: New

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

Updated: July 25, 2021, 6:55 a.m.

Location: Philadelphia (Richmond), PA

Reporting: True, Located: True

Current AQI: 55.0

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
July 25, 2021, 5 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 45.0 ppb (42) 0.18 ppb (3) 21.0 μg/m3 (20) 13.9 μg/m3 (55) 55.0
 
July 25, 2021, 4 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 47.0 ppb (44) 0.18 ppb (3) 22.0 μg/m3 (21) 14.4 μg/m3 (56) 56.0
 
July 25, 2021, 3 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 47.0 ppb (44) 0.19 ppb (3) 22.0 μg/m3 (21) 14.3 μg/m3 (56) 56.0
 
July 25, 2021, 2 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 49.0 ppb (46) 0.2 ppb (3) 22.0 μg/m3 (21) 14.8 μg/m3 (57) 57.0
 
July 25, 2021, 1 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 53.0 ppb (50) 0.19 ppb (3) 24.0 μg/m3 (23) 15.6 μg/m3 (59) 59.0
 
July 25, 2021, midnight N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) N/A 0.18 ppb (3) 22.0 μg/m3 (21) 15.3 μg/m3 (58) 58.0
 
July 24, 2021, 11 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 51.0 ppb (48) 0.17 ppb (3) 23.0 μg/m3 (22) 15.9 μg/m3 (59) 59.0
 
July 24, 2021, 10 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 52.0 ppb (49) N/A 22.0 μg/m3 (21) 15.8 μg/m3 (59) 59.0
 
July 24, 2021, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 56.0 ppb (55) 0.17 ppb (3) 24.0 μg/m3 (23) 15.9 μg/m3 (59) 59.0
 
July 24, 2021, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 56.0 ppb (55) 0.17 ppb (3) 24.0 μg/m3 (23) 16.2 μg/m3 (60) 60.0
 
July 24, 2021, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 59.0 ppb (65) 0.17 ppb (3) 25.0 μg/m3 (24) 17.3 μg/m3 (62) 65.0
 
July 24, 2021, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 63.0 ppb (78) 0.18 ppb (3) 23.0 μg/m3 (22) 17.0 μg/m3 (62) 78.0
 
July 24, 2021, 5 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 61.0 ppb (71) 0.18 ppb (3) 26.0 μg/m3 (25) 17.7 μg/m3 (63) 71.0
 
July 24, 2021, 4 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 59.0 ppb (65) 0.22 ppb (3) 27.0 μg/m3 (25) 17.3 μg/m3 (62) 65.0
 
July 24, 2021, 3 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 56.0 ppb (55) 0.22 ppb (3) 23.0 μg/m3 (22) 16.5 μg/m3 (61) 61.0
 
July 24, 2021, 2 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 47.0 ppb (44) 0.24 ppb (3) 23.0 μg/m3 (22) 15.9 μg/m3 (59) 59.0
 
July 24, 2021, 1 p.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 33.0 ppb (31) 0.28 ppb (4) 25.0 μg/m3 (24) 16.1 μg/m3 (60) 60.0
 
July 24, 2021, noon N/A N/A N/A 9.0 ppb (9) N/A 1.0 ppb (2) 23.0 ppb (22) 0.29 ppb (4) 26.0 μg/m3 (25) 16.1 μg/m3 (60) 60.0
 
July 24, 2021, 11 a.m. N/A N/A N/A 11.0 ppb (11) N/A 1.0 ppb (2) 17.0 ppb (16) 0.3 ppb (4) 24.0 μg/m3 (23) 16.8 μg/m3 (61) 61.0
 
July 24, 2021, 10 a.m. N/A N/A N/A 13.0 ppb (13) N/A 1.0 ppb (2) 13.0 ppb (13) 0.31 ppb (4) 25.0 μg/m3 (24) 17.7 μg/m3 (63) 63.0
 
July 24, 2021, 9 a.m. N/A N/A N/A 12.0 ppb (12) N/A 1.0 ppb (2) 16.0 ppb (15) 0.3 ppb (4) 24.0 μg/m3 (23) 17.8 μg/m3 (63) 63.0
 
July 24, 2021, 8 a.m. N/A N/A N/A 13.0 ppb (13) N/A 1.0 ppb (2) 14.0 ppb (13) 0.33 ppb (4) 26.0 μg/m3 (25) 17.6 μg/m3 (63) 63.0
 
July 24, 2021, 7 a.m. N/A N/A N/A 21.0 ppb (20) N/A 1.0 ppb (2) 7.0 ppb (7) 0.5 ppb (6) 27.0 μg/m3 (25) 17.7 μg/m3 (63) 63.0
 
July 24, 2021, 6 a.m. N/A N/A N/A 19.0 ppb (18) N/A 1.0 ppb (2) 8.0 ppb (8) 0.42 ppb (5) 24.0 μg/m3 (23) 17.4 μg/m3 (63) 63.0
 
July 24, 2021, 5 a.m. N/A N/A N/A 25.0 ppb (24) N/A 1.0 ppb (2) 4.0 ppb (4) 0.43 ppb (5) 26.0 μg/m3 (25) 18.1 μg/m3 (64) 64.0
 
July 24, 2021, 4 a.m. N/A N/A N/A 18.0 ppb (17) N/A 1.0 ppb (2) 13.0 ppb (13) 0.41 ppb (5) 23.0 μg/m3 (22) 16.6 μg/m3 (61) 61.0
 
July 24, 2021, 3 a.m. N/A N/A N/A 19.0 ppb (18) N/A 1.0 ppb (2) 19.0 ppb (18) 0.46 ppb (6) 23.0 μg/m3 (22) 16.1 μg/m3 (60) 60.0
 
July 24, 2021, 2 a.m. N/A N/A N/A 13.0 ppb (13) N/A 0.0 ppb (0) 28.0 ppb (26) 0.34 ppb (4) 22.0 μg/m3 (21) 15.6 μg/m3 (59) 59.0
 
July 24, 2021, 1 a.m. N/A N/A N/A 9.0 ppb (9) N/A 0.0 ppb (0) 33.0 ppb (31) 0.25 ppb (3) 19.0 μg/m3 (18) 14.3 μg/m3 (56) 56.0
 
July 24, 2021, midnight N/A N/A N/A 10.0 ppb (10) N/A 0.0 ppb (0) 34.0 ppb (32) 0.27 ppb (4) 21.0 μg/m3 (20) 14.2 μg/m3 (56) 56.0
 
July 23, 2021, 11 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 42.0 ppb (39) 0.23 ppb (3) 20.0 μg/m3 (19) 14.6 μg/m3 (57) 57.0
 
July 23, 2021, 10 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 43.0 ppb (40) N/A 21.0 μg/m3 (20) 14.7 μg/m3 (57) 57.0
 
July 23, 2021, 9 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 47.0 ppb (44) 0.2 ppb (3) 21.0 μg/m3 (20) 14.6 μg/m3 (57) 57.0
 
July 23, 2021, 8 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 47.0 ppb (44) 0.18 ppb (3) 20.0 μg/m3 (19) 13.5 μg/m3 (54) 54.0
 
July 23, 2021, 7 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 43.0 ppb (40) 0.17 ppb (3) 20.0 μg/m3 (19) 12.3 μg/m3 (52) 52.0
 
July 23, 2021, 6 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 39.0 ppb (37) 0.18 ppb (3) 19.0 μg/m3 (18) 12.1 μg/m3 (51) 51.0
 
July 23, 2021, 5 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 36.0 ppb (34) 0.16 ppb (3) 20.0 μg/m3 (19) 12.3 μg/m3 (52) 52.0
 
July 23, 2021, 4 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 30.0 ppb (28) 0.15 ppb (2) 17.0 μg/m3 (16) 11.3 μg/m3 (48) 48.0
 
July 23, 2021, 3 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 30.0 ppb (28) 0.16 ppb (3) 19.0 μg/m3 (18) 11.2 μg/m3 (47) 47.0
 
July 23, 2021, 2 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 28.0 ppb (26) 0.18 ppb (3) 21.0 μg/m3 (20) 11.1 μg/m3 (47) 47.0
 
July 23, 2021, 1 p.m. N/A N/A N/A 10.0 ppb (10) N/A 1.0 ppb (2) 22.0 ppb (21) 0.23 ppb (3) 25.0 μg/m3 (24) 11.3 μg/m3 (48) 48.0
 
July 23, 2021, noon N/A N/A N/A 13.0 ppb (13) N/A 2.0 ppb (3) 15.0 ppb (14) 0.25 ppb (3) 31.0 μg/m3 (29) 12.0 μg/m3 (50) 50.0
 
July 23, 2021, 11 a.m. N/A N/A N/A 17.0 ppb (17) N/A 1.0 ppb (2) 10.0 ppb (10) 0.3 ppb (4) 33.0 μg/m3 (31) 12.0 μg/m3 (50) 50.0
 
July 23, 2021, 10 a.m. N/A N/A N/A 16.0 ppb (16) N/A 1.0 ppb (2) 9.0 ppb (9) 0.28 ppb (4) 50.0 μg/m3 (47) 12.0 μg/m3 (50) 50.0
 
July 23, 2021, 9 a.m. N/A N/A N/A 15.0 ppb (15) N/A 1.0 ppb (2) 8.0 ppb (8) 0.25 ppb (3) 17.0 μg/m3 (16) 9.0 μg/m3 (38) 38.0
 
July 23, 2021, 8 a.m. N/A N/A N/A 11.0 ppb (11) N/A 1.0 ppb (2) 11.0 ppb (11) 0.23 ppb (3) 16.0 μg/m3 (15) 8.7 μg/m3 (37) 37.0
 
July 23, 2021, 7 a.m. N/A N/A N/A 11.0 ppb (11) N/A 1.0 ppb (2) 12.0 ppb (12) 0.25 ppb (3) 16.0 μg/m3 (15) 8.9 μg/m3 (38) 38.0
 
July 23, 2021, 6 a.m. N/A N/A N/A 10.0 ppb (10) N/A 1.0 ppb (2) 14.0 ppb (13) 0.26 ppb (4) 18.0 μg/m3 (17) 9.8 μg/m3 (41) 41.0
 
July 23, 2021, 5 a.m. N/A N/A N/A 9.0 ppb (9) N/A 1.0 ppb (2) 17.0 ppb (16) 0.26 ppb (4) 17.0 μg/m3 (16) 9.4 μg/m3 (40) 40.0
 
July 23, 2021, 4 a.m. N/A N/A N/A 11.0 ppb (11) N/A 0.0 ppb (0) 18.0 ppb (17) 0.31 ppb (4) 15.0 μg/m3 (14) 9.4 μg/m3 (40) 40.0
 
July 23, 2021, 3 a.m. N/A N/A N/A 13.0 ppb (13) N/A 0.0 ppb (0) 19.0 ppb (18) 0.31 ppb (4) 16.0 μg/m3 (15) 9.9 μg/m3 (42) 42.0
 
July 23, 2021, 2 a.m. N/A N/A N/A 15.0 ppb (15) N/A 0.0 ppb (0) 20.0 ppb (19) 0.34 ppb (4) 26.0 μg/m3 (25) 12.0 μg/m3 (50) 50.0
 
July 23, 2021, 1 a.m. N/A N/A N/A 12.0 ppb (12) N/A 0.0 ppb (0) 26.0 ppb (25) 0.28 ppb (4) 17.0 μg/m3 (16) 11.0 μg/m3 (46) 46.0
 
July 23, 2021, midnight N/A N/A N/A 8.0 ppb (8) N/A 0.0 ppb (0) N/A 0.23 ppb (3) 19.0 μg/m3 (18) 11.0 μg/m3 (46) 46.0
 
July 22, 2021, 11 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 38.0 ppb (36) 0.2 ppb (3) 18.0 μg/m3 (17) 11.1 μg/m3 (47) 47.0
 
July 22, 2021, 10 p.m. N/A N/A N/A 8.0 ppb (8) N/A 0.0 ppb (0) 38.0 ppb (36) N/A 19.0 μg/m3 (18) 11.3 μg/m3 (48) 48.0
 
July 22, 2021, 9 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 40.0 ppb (38) 0.2 ppb (3) 18.0 μg/m3 (17) 10.9 μg/m3 (46) 46.0
 
July 22, 2021, 8 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 44.0 ppb (41) 0.21 ppb (3) 16.0 μg/m3 (15) 10.8 μg/m3 (46) 46.0
 
July 22, 2021, 7 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 47.0 ppb (44) 0.22 ppb (3) 19.0 μg/m3 (18) 12.1 μg/m3 (51) 51.0
 
July 22, 2021, 6 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 44.0 ppb (41) 0.2 ppb (3) 20.0 μg/m3 (19) 11.0 μg/m3 (46) 46.0
 
July 22, 2021, 5 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 39.0 ppb (37) 0.2 ppb (3) 17.0 μg/m3 (16) 11.0 μg/m3 (46) 46.0
 
July 22, 2021, 4 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 37.0 ppb (35) 0.21 ppb (3) 19.0 μg/m3 (18) 11.3 μg/m3 (48) 48.0
 
July 22, 2021, 3 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 35.0 ppb (33) 0.21 ppb (3) 18.0 μg/m3 (17) 11.3 μg/m3 (48) 48.0
 
July 22, 2021, 2 p.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 28.0 ppb (26) 0.22 ppb (3) 18.0 μg/m3 (17) 11.4 μg/m3 (48) 48.0
 
July 22, 2021, 1 p.m. N/A N/A N/A 8.0 ppb (8) N/A 1.0 ppb (2) 22.0 ppb (21) 0.24 ppb (3) 19.0 μg/m3 (18) 12.0 μg/m3 (50) 50.0
 
July 22, 2021, noon N/A N/A N/A 10.0 ppb (10) N/A 1.0 ppb (2) 17.0 ppb (16) 0.29 ppb (4) 19.0 μg/m3 (18) 12.6 μg/m3 (53) 53.0
 
July 22, 2021, 11 a.m. N/A N/A N/A 13.0 ppb (13) N/A 1.0 ppb (2) 14.0 ppb (13) 0.35 ppb (4) 21.0 μg/m3 (20) 12.7 μg/m3 (53) 53.0
 
July 22, 2021, 10 a.m. N/A N/A N/A 16.0 ppb (16) N/A 1.0 ppb (2) 12.0 ppb (12) 0.36 ppb (5) 20.0 μg/m3 (19) 12.3 μg/m3 (52) 52.0
 
July 22, 2021, 9 a.m. N/A N/A N/A 10.0 ppb (10) N/A 1.0 ppb (2) 18.0 ppb (17) 0.31 ppb (4) 18.0 μg/m3 (17) 12.2 μg/m3 (52) 52.0
 
July 22, 2021, 8 a.m. N/A N/A N/A 9.0 ppb (9) N/A 0.0 ppb (0) 23.0 ppb (22) 0.32 ppb (4) 18.0 μg/m3 (17) 12.0 μg/m3 (50) 50.0
 
July 22, 2021, 7 a.m. N/A N/A N/A 7.0 ppb (7) N/A 0.0 ppb (0) 27.0 ppb (25) 0.33 ppb (4) 18.0 μg/m3 (17) 11.9 μg/m3 (50) 50.0
 
July 22, 2021, 6 a.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 28.0 ppb (26) 0.35 ppb (4) 17.0 μg/m3 (16) 11.7 μg/m3 (49) 49.0
 
July 22, 2021, 5 a.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 28.0 ppb (26) 0.36 ppb (5) 17.0 μg/m3 (16) 11.7 μg/m3 (49) 49.0
 
July 22, 2021, 4 a.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 30.0 ppb (28) 0.41 ppb (5) 17.0 μg/m3 (16) 12.1 μg/m3 (51) 51.0
 
July 22, 2021, 3 a.m. N/A N/A N/A 9.0 ppb (9) N/A 1.0 ppb (2) 28.0 ppb (26) 0.45 ppb (6) 20.0 μg/m3 (19) 13.2 μg/m3 (54) 54.0
 
July 22, 2021, 2 a.m. N/A N/A N/A 13.0 ppb (13) N/A 1.0 ppb (2) 24.0 ppb (23) 0.53 ppb (6) 25.0 μg/m3 (24) 18.2 μg/m3 (64) 64.0
 
July 22, 2021, 1 a.m. N/A N/A N/A 18.0 ppb (17) N/A 0.0 ppb (0) 22.0 ppb (21) 0.53 ppb (6) 32.0 μg/m3 (30) 22.1 μg/m3 (73) 73.0
 
July 22, 2021, midnight N/A N/A N/A 8.0 ppb (8) N/A 0.0 ppb (0) 38.0 ppb (36) 0.34 ppb (4) 31.0 μg/m3 (29) 21.5 μg/m3 (71) 71.0
 
July 21, 2021, 11 p.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 48.0 ppb (45) 0.4 ppb (5) 29.0 μg/m3 (27) 21.0 μg/m3 (70) 70.0
 
July 21, 2021, 10 p.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 52.0 ppb (49) N/A 30.0 μg/m3 (28) 21.4 μg/m3 (71) 71.0
 
July 21, 2021, 9 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 53.0 ppb (50) 0.41 ppb (5) 33.0 μg/m3 (31) 25.5 μg/m3 (80) 80.0
 
July 21, 2021, 8 p.m. N/A N/A N/A 10.0 ppb (10) N/A 1.0 ppb (2) 50.0 ppb (47) 0.4 ppb (5) 36.0 μg/m3 (34) 25.2 μg/m3 (79) 79.0
 
July 21, 2021, 7 p.m. N/A N/A N/A 9.0 ppb (9) N/A 1.0 ppb (2) 58.0 ppb (61) 0.42 ppb (5) 126.0 μg/m3 (87) 39.3 μg/m3 (111) 111.0
 
July 21, 2021, 6 p.m. N/A N/A N/A 9.0 ppb (9) N/A 1.0 ppb (2) 60.0 ppb (68) 0.49 ppb (6) 68.0 μg/m3 (58) 48.8 μg/m3 (134) 134.0
 
July 21, 2021, 5 p.m. N/A N/A N/A 8.0 ppb (8) N/A 1.0 ppb (2) 62.0 ppb (74) 0.5 ppb (6) 70.0 μg/m3 (59) 51.3 μg/m3 (140) 140.0
 
July 21, 2021, 4 p.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 60.0 ppb (68) 0.52 ppb (6) 66.0 μg/m3 (57) 51.6 μg/m3 (141) 141.0
 
July 21, 2021, 3 p.m. N/A N/A N/A 13.0 ppb (13) N/A 1.0 ppb (2) 52.0 ppb (49) 0.6 ppb (7) 77.0 μg/m3 (62) 55.4 μg/m3 (150) 150.0
 
July 21, 2021, 2 p.m. N/A N/A N/A 12.0 ppb (12) N/A 1.0 ppb (2) 43.0 ppb (40) 0.59 ppb (7) 82.0 μg/m3 (65) 56.9 μg/m3 (152) 152.0
 
July 21, 2021, 1 p.m. N/A N/A N/A 10.0 ppb (10) N/A 1.0 ppb (2) 36.0 ppb (34) 0.61 ppb (7) 84.0 μg/m3 (66) 56.4 μg/m3 (152) 152.0
 
July 21, 2021, noon N/A N/A N/A 15.0 ppb (15) N/A 1.0 ppb (2) 25.0 ppb (24) 0.65 ppb (8) 78.0 μg/m3 (63) 54.6 μg/m3 (149) 149.0
 
July 21, 2021, 11 a.m. N/A N/A N/A 22.0 ppb (21) N/A 1.0 ppb (2) 17.0 ppb (16) 0.64 ppb (7) 70.0 μg/m3 (59) 48.6 μg/m3 (134) 134.0
 
July 21, 2021, 10 a.m. N/A N/A N/A 23.0 ppb (22) N/A 1.0 ppb (2) 16.0 ppb (15) 0.58 ppb (7) 61.0 μg/m3 (54) 47.3 μg/m3 (131) 131.0
 
July 21, 2021, 9 a.m. N/A N/A N/A 19.0 ppb (18) N/A N/A 22.0 ppb (21) 0.59 ppb (7) 66.0 μg/m3 (57) 50.0 μg/m3 (137) 137.0
 
July 21, 2021, 8 a.m. N/A N/A N/A 9.0 ppb (9) N/A N/A 36.0 ppb (34) 0.5 ppb (6) 72.0 μg/m3 (60) 56.0 μg/m3 (152) 152.0
 
July 21, 2021, 7 a.m. N/A N/A N/A 24.0 ppb (23) N/A N/A 12.0 ppb (12) 0.62 ppb (7) 88.0 μg/m3 (68) 69.0 μg/m3 (158) 158.0
 
July 21, 2021, 6 a.m. N/A N/A N/A 23.0 ppb (22) N/A 1.0 ppb (2) 14.0 ppb (13) 0.62 ppb (7) 89.0 μg/m3 (68) 70.9 μg/m3 (159) 159.0
 
July 21, 2021, 5 a.m. N/A N/A N/A 19.0 ppb (18) N/A 1.0 ppb (2) 31.0 ppb (29) N/A 84.0 μg/m3 (66) 65.8 μg/m3 (157) 157.0
 
July 21, 2021, 4 a.m. N/A N/A N/A 11.0 ppb (11) N/A 1.0 ppb (2) 47.0 ppb (44) 0.64 ppb (7) 81.0 μg/m3 (64) 64.1 μg/m3 (156) 156.0
 
July 21, 2021, 3 a.m. N/A N/A N/A 9.0 ppb (9) N/A 1.0 ppb (2) 56.0 ppb (55) 0.58 ppb (7) 81.0 μg/m3 (64) 63.7 μg/m3 (156) 156.0
 
July 21, 2021, 2 a.m. N/A N/A N/A 9.0 ppb (9) N/A 1.0 ppb (2) 53.0 ppb (50) 0.57 ppb (7) 76.0 μg/m3 (62) 60.2 μg/m3 (154) 154.0
 
July 21, 2021, 1 a.m. N/A N/A N/A 8.0 ppb (8) N/A 1.0 ppb (2) 53.0 ppb (50) 0.54 ppb (6) 72.0 μg/m3 (60) 58.0 μg/m3 (153) 153.0
 
July 21, 2021, midnight N/A N/A N/A 8.0 ppb (8) N/A 1.0 ppb (2) N/A 0.54 ppb (6) 75.0 μg/m3 (61) 60.8 μg/m3 (154) 154.0
 
July 20, 2021, 11 p.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 58.0 ppb (61) 0.56 ppb (7) 90.0 μg/m3 (69) 72.8 μg/m3 (160) 160.0
 
July 20, 2021, 10 p.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 62.0 ppb (74) N/A 99.0 μg/m3 (73) 79.4 μg/m3 (164) 164.0
 
July 20, 2021, 9 p.m. N/A N/A N/A 8.0 ppb (8) N/A 1.0 ppb (2) 65.0 ppb (84) 0.67 ppb (8) 110.0 μg/m3 (79) 86.0 μg/m3 (167) 167.0
 
July 20, 2021, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 68.0 ppb (94) 0.73 ppb (8) 123.0 μg/m3 (85) 96.7 μg/m3 (173) 173.0
 
July 20, 2021, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 69.0 ppb (97) 0.65 ppb (8) 108.0 μg/m3 (78) 86.5 μg/m3 (168) 168.0
 
July 20, 2021, 6 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 68.0 ppb (94) 0.56 ppb (7) 95.0 μg/m3 (71) 74.4 μg/m3 (161) 161.0
 
July 20, 2021, 5 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 66.0 ppb (87) 0.53 ppb (6) 85.0 μg/m3 (66) 66.0 μg/m3 (157) 157.0
 
July 20, 2021, 4 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 57.0 ppb (58) 0.47 ppb (6) 71.0 μg/m3 (59) 55.7 μg/m3 (152) 152.0
 
July 20, 2021, 3 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 53.0 ppb (50) 0.47 ppb (6) 74.0 μg/m3 (61) 56.6 μg/m3 (152) 152.0
 
July 20, 2021, 2 p.m. N/A N/A N/A 17.0 ppb (17) N/A 1.0 ppb (2) 43.0 ppb (40) 0.48 ppb (6) 69.0 μg/m3 (58) 51.7 μg/m3 (141) 141.0
 
July 20, 2021, 1 p.m. N/A N/A N/A 13.0 ppb (13) N/A 1.0 ppb (2) 30.0 ppb (28) 0.45 ppb (6) 62.0 μg/m3 (55) 44.2 μg/m3 (123) 123.0
 
July 20, 2021, noon N/A N/A N/A 16.0 ppb (16) N/A 1.0 ppb (2) N/A 0.47 ppb (6) 57.0 μg/m3 (52) 40.4 μg/m3 (114) 114.0
 
July 20, 2021, 11 a.m. N/A N/A N/A 21.0 ppb (20) N/A 1.0 ppb (2) 11.0 ppb (11) 0.5 ppb (6) 53.0 μg/m3 (50) 37.4 μg/m3 (106) 106.0
 
July 20, 2021, 10 a.m. N/A N/A N/A 22.0 ppb (21) N/A 1.0 ppb (2) 5.0 ppb (5) 0.46 ppb (6) 52.0 μg/m3 (49) 38.1 μg/m3 (108) 108.0
 
July 20, 2021, 9 a.m. N/A N/A N/A 19.0 ppb (18) N/A 1.0 ppb (2) 8.0 ppb (8) 0.47 ppb (6) 48.0 μg/m3 (45) 37.7 μg/m3 (107) 107.0
 
July 20, 2021, 8 a.m. N/A N/A N/A 14.0 ppb (14) N/A 1.0 ppb (2) 14.0 ppb (13) 0.4 ppb (5) 49.0 μg/m3 (46) 38.6 μg/m3 (109) 109.0
 
July 20, 2021, 7 a.m. N/A N/A N/A 12.0 ppb (12) N/A 1.0 ppb (2) 17.0 ppb (16) 0.41 ppb (5) 54.0 μg/m3 (50) 39.8 μg/m3 (112) 112.0
 
July 20, 2021, 6 a.m. N/A N/A N/A 10.0 ppb (10) N/A 0.0 ppb (0) 21.0 ppb (20) 0.41 ppb (5) 51.0 μg/m3 (48) 40.2 μg/m3 (113) 113.0
 
July 20, 2021, 5 a.m. N/A N/A N/A 10.0 ppb (10) N/A 0.0 ppb (0) 22.0 ppb (21) 0.42 ppb (5) 51.0 μg/m3 (48) 40.1 μg/m3 (113) 113.0
 
July 20, 2021, 4 a.m. N/A N/A N/A 11.0 ppb (11) N/A 1.0 ppb (2) 22.0 ppb (21) 0.42 ppb (5) 49.0 μg/m3 (46) 39.1 μg/m3 (110) 110.0
 
July 20, 2021, 3 a.m. N/A N/A N/A 12.0 ppb (12) N/A 1.0 ppb (2) 21.0 ppb (20) 0.49 ppb (6) 52.0 μg/m3 (49) 40.4 μg/m3 (114) 114.0
 
July 20, 2021, 2 a.m. N/A N/A N/A 13.0 ppb (13) N/A 1.0 ppb (2) 24.0 ppb (23) 0.44 ppb (5) 59.0 μg/m3 (53) 40.9 μg/m3 (115) 115.0
 
July 20, 2021, 1 a.m. N/A N/A N/A 10.0 ppb (10) N/A 0.0 ppb (0) 31.0 ppb (29) 0.41 ppb (5) 53.0 μg/m3 (50) 40.3 μg/m3 (113) 113.0
 
July 20, 2021, midnight N/A N/A N/A 8.0 ppb (8) N/A 0.0 ppb (0) 38.0 ppb (36) 0.38 ppb (5) 52.0 μg/m3 (49) 38.8 μg/m3 (110) 110.0
 
July 19, 2021, 11 p.m. N/A N/A N/A 8.0 ppb (8) N/A N/A 40.0 ppb (38) 0.32 ppb (4) 43.0 μg/m3 (40) 33.6 μg/m3 (97) 97.0
 
July 19, 2021, 10 p.m. N/A N/A N/A 9.0 ppb (9) N/A 1.0 ppb (2) 40.0 ppb (38) N/A 42.0 μg/m3 (39) 33.2 μg/m3 (96) 96.0
 
July 19, 2021, 9 p.m. N/A N/A N/A 8.0 ppb (8) N/A 1.0 ppb (2) 41.0 ppb (38) 0.31 ppb (4) 43.0 μg/m3 (40) 34.7 μg/m3 (99) 99.0
 
July 19, 2021, 8 p.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 42.0 ppb (39) 0.31 ppb (4) 44.0 μg/m3 (41) 35.3 μg/m3 (100) 100.0
 
July 19, 2021, 7 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 41.0 ppb (38) 0.31 ppb (4) 47.0 μg/m3 (44) 35.1 μg/m3 (100) 100.0
 
July 19, 2021, 6 p.m. N/A N/A N/A 8.0 ppb (8) N/A 1.0 ppb (2) 40.0 ppb (38) 0.32 ppb (4) 47.0 μg/m3 (44) 33.2 μg/m3 (96) 96.0
 
July 19, 2021, 5 p.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 39.0 ppb (37) 0.28 ppb (4) 44.0 μg/m3 (41) 31.7 μg/m3 (93) 93.0
 
July 19, 2021, 4 p.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 38.0 ppb (36) 0.28 ppb (4) 40.0 μg/m3 (38) 27.8 μg/m3 (85) 85.0
 
July 19, 2021, 3 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 38.0 ppb (36) 0.27 ppb (4) 34.0 μg/m3 (32) 23.7 μg/m3 (76) 76.0
 
July 19, 2021, 2 p.m. N/A N/A N/A 8.0 ppb (8) N/A 1.0 ppb (2) 32.0 ppb (30) 0.27 ppb (4) 30.0 μg/m3 (28) 21.1 μg/m3 (70) 70.0
 
July 19, 2021, 1 p.m. N/A N/A N/A 10.0 ppb (10) N/A 1.0 ppb (2) 26.0 ppb (25) 0.28 ppb (4) 31.0 μg/m3 (29) 18.8 μg/m3 (66) 66.0
 
July 19, 2021, noon N/A N/A N/A 10.0 ppb (10) N/A 1.0 ppb (2) 25.0 ppb (24) 0.25 ppb (3) 27.0 μg/m3 (25) 16.0 μg/m3 (60) 60.0
 
July 19, 2021, 11 a.m. N/A N/A N/A 14.0 ppb (14) N/A 1.0 ppb (2) 21.0 ppb (20) 0.27 ppb (4) 22.0 μg/m3 (21) 14.4 μg/m3 (56) 56.0
 
July 19, 2021, 10 a.m. N/A N/A N/A 13.0 ppb (13) N/A 1.0 ppb (2) 21.0 ppb (20) 0.24 ppb (3) 20.0 μg/m3 (19) 13.4 μg/m3 (54) 54.0
 
July 19, 2021, 9 a.m. N/A N/A N/A 8.0 ppb (8) N/A 1.0 ppb (2) 26.0 ppb (25) 0.22 ppb (3) 19.0 μg/m3 (18) 12.1 μg/m3 (51) 51.0
 
July 19, 2021, 8 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 28.0 ppb (26) 0.21 ppb (3) 16.0 μg/m3 (15) 11.1 μg/m3 (47) 47.0
 
July 19, 2021, 7 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 29.0 ppb (27) 0.2 ppb (3) 16.0 μg/m3 (15) 10.9 μg/m3 (46) 46.0
 
July 19, 2021, 6 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (29) 0.21 ppb (3) 16.0 μg/m3 (15) 11.1 μg/m3 (47) 47.0
 
July 19, 2021, 5 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 30.0 ppb (28) 0.21 ppb (3) 15.0 μg/m3 (14) 9.8 μg/m3 (41) 41.0
 
July 19, 2021, 4 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 27.0 ppb (25) 0.23 ppb (3) 14.0 μg/m3 (13) 7.4 μg/m3 (31) 31.0
 
July 19, 2021, 3 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 29.0 ppb (27) 0.24 ppb (3) 10.0 μg/m3 (10) 6.0 μg/m3 (25) 27.0
 
July 19, 2021, 2 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 30.0 ppb (28) 0.25 ppb (3) 8.0 μg/m3 (8) 4.8 μg/m3 (20) 28.0
 
July 19, 2021, 1 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (29) 0.24 ppb (3) 8.0 μg/m3 (8) 3.9 μg/m3 (17) 29.0
 
July 19, 2021, midnight N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A 0.23 ppb (3) 7.0 μg/m3 (7) 3.3 μg/m3 (14) 14.0
 
July 18, 2021, 11 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 35.0 ppb (33) 0.23 ppb (3) 5.0 μg/m3 (5) 2.8 μg/m3 (12) 33.0
 
July 18, 2021, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 36.0 ppb (34) N/A 5.0 μg/m3 (5) 2.7 μg/m3 (12) 34.0
 
July 18, 2021, 9 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 37.0 ppb (35) 0.23 ppb (3) 7.0 μg/m3 (7) 2.9 μg/m3 (13) 35.0
 
July 18, 2021, 8 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 36.0 ppb (34) 0.23 ppb (3) 7.0 μg/m3 (7) 3.6 μg/m3 (16) 34.0
 
July 18, 2021, 7 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 35.0 ppb (33) 0.23 ppb (3) 8.0 μg/m3 (8) 4.5 μg/m3 (19) 33.0
 
July 18, 2021, 6 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (32) 0.23 ppb (3) 9.0 μg/m3 (9) 5.5 μg/m3 (23) 32.0
 
July 18, 2021, 5 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 35.0 ppb (33) 0.21 ppb (3) 8.0 μg/m3 (8) 5.6 μg/m3 (24) 33.0
 
July 18, 2021, 4 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 35.0 ppb (33) 0.21 ppb (3) 10.0 μg/m3 (10) 5.1 μg/m3 (22) 33.0
 
July 18, 2021, 3 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 35.0 ppb (33) 0.21 ppb (3) 9.0 μg/m3 (9) 4.4 μg/m3 (19) 33.0
 
July 18, 2021, 2 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (30) 0.2 ppb (3) 9.0 μg/m3 (9) 4.6 μg/m3 (20) 30.0
 
July 18, 2021, 1 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (25) 0.19 ppb (3) 12.0 μg/m3 (12) 6.0 μg/m3 (25) 25.0
 
July 18, 2021, noon N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 22.0 ppb (21) 0.2 ppb (3) 14.0 μg/m3 (13) 6.6 μg/m3 (28) 28.0
 
July 18, 2021, 11 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 20.0 ppb (19) 0.18 ppb (3) 17.0 μg/m3 (16) 8.3 μg/m3 (35) 35.0
 
July 18, 2021, 10 a.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 18.0 ppb (17) 0.16 ppb (3) 19.0 μg/m3 (18) 9.8 μg/m3 (41) 41.0
 
July 18, 2021, 9 a.m. N/A N/A N/A 11.0 ppb (11) N/A 1.0 ppb (2) 18.0 ppb (17) 0.16 ppb (3) 21.0 μg/m3 (20) 10.3 μg/m3 (43) 43.0
 
July 18, 2021, 8 a.m. N/A N/A N/A 12.0 ppb (12) N/A 1.0 ppb (2) 20.0 ppb (19) 0.16 ppb (3) 20.0 μg/m3 (19) 9.6 μg/m3 (40) 40.0
 
July 18, 2021, 7 a.m. N/A N/A N/A 9.0 ppb (9) N/A 1.0 ppb (2) 26.0 ppb (25) 0.17 ppb (3) 14.0 μg/m3 (13) 7.3 μg/m3 (31) 31.0
 
July 18, 2021, 6 a.m. N/A N/A N/A 10.0 ppb (10) N/A 1.0 ppb (2) 26.0 ppb (25) 0.17 ppb (3) 12.0 μg/m3 (12) 6.2 μg/m3 (26) 26.0