ID: 677

AQSQID: 391351001

Site Name: Preble County

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

Updated: July 26, 2021, 8:03 p.m.

Location: New Paris (Eaton Gettysburg Rd), OH

Reporting: True, Located: True

Current AQI: 66.0

New Paris (Eaton Gettysburg Rd) OH, US: 39.83562, -84.72049

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 26, 2021, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 56.0 ppb (55) 0.2 ppb (3) N/A 18.8 μg/m3 (66) 66.0
 
July 26, 2021, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 56.0 ppb (55) 0.19 ppb (3) N/A 16.7 μg/m3 (61) 61.0
 
July 26, 2021, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 51.0 ppb (48) 0.17 ppb (3) N/A 16.0 μg/m3 (60) 60.0
 
July 26, 2021, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 45.0 ppb (42) 0.22 ppb (3) N/A 15.2 μg/m3 (58) 58.0
 
July 26, 2021, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.22 ppb (3) N/A 14.8 μg/m3 (57) 57.0
 
July 26, 2021, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.21 ppb (3) N/A 15.1 μg/m3 (58) 58.0
 
July 26, 2021, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.15 ppb (2) N/A 14.8 μg/m3 (57) 57.0
 
July 26, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A 14.5 μg/m3 (57) 57.0
 
July 26, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A N/A 14.1 μg/m3 (56) 56.0
 
July 26, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 18.0 ppb (17) 0.17 ppb (3) N/A 13.5 μg/m3 (54) 54.0
 
July 26, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 14.0 ppb (13) 0.11 ppb (2) N/A 13.0 μg/m3 (53) 53.0
 
July 26, 2021, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 7.0 ppb (7) 0.17 ppb (3) N/A 13.5 μg/m3 (54) 54.0
 
July 26, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.15 ppb (2) N/A 12.8 μg/m3 (53) 53.0
 
July 26, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 19.0 ppb (18) 0.15 ppb (2) N/A 13.1 μg/m3 (54) 54.0
 
July 26, 2021, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 13.0 ppb (13) 0.13 ppb (2) N/A 12.4 μg/m3 (52) 52.0
 
July 26, 2021, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.19 ppb (3) N/A 12.8 μg/m3 (53) 53.0
 
July 26, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.19 ppb (3) N/A 12.2 μg/m3 (52) 52.0
 
July 26, 2021, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.19 ppb (3) N/A 11.4 μg/m3 (48) 48.0
 
July 26, 2021, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.14 ppb (2) N/A 11.2 μg/m3 (47) 47.0
 
July 25, 2021, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 48.0 ppb (45) 0.17 ppb (3) N/A 10.5 μg/m3 (44) 45.0
 
July 25, 2021, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 52.0 ppb (49) 0.18 ppb (3) N/A 10.1 μg/m3 (43) 49.0
 
July 25, 2021, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 52.0 ppb (49) 0.17 ppb (3) N/A 9.7 μg/m3 (41) 49.0
 
July 25, 2021, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 51.0 ppb (48) 0.15 ppb (2) N/A 10.1 μg/m3 (43) 48.0
 
July 25, 2021, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 47.0 ppb (44) 0.2 ppb (3) N/A 10.8 μg/m3 (46) 46.0
 
July 25, 2021, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 45.0 ppb (42) 0.2 ppb (3) N/A 10.8 μg/m3 (46) 46.0
 
July 25, 2021, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.19 ppb (3) N/A 10.1 μg/m3 (43) 43.0
 
July 25, 2021, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (38) 0.15 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
July 25, 2021, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.19 ppb (3) N/A 9.9 μg/m3 (42) 42.0
 
July 25, 2021, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.17 ppb (3) N/A 7.6 μg/m3 (32) 36.0
 
July 25, 2021, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.16 ppb (3) N/A 6.6 μg/m3 (28) 34.0
 
July 25, 2021, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.12 ppb (2) N/A 7.7 μg/m3 (33) 33.0
 
July 25, 2021, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.18 ppb (3) N/A 11.4 μg/m3 (48) 48.0
 
July 25, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 13.2 μg/m3 (54) 54.0
 
July 25, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.21 ppb (3) N/A 15.8 μg/m3 (59) 59.0
 
July 25, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.18 ppb (3) N/A 17.8 μg/m3 (63) 63.0
 
July 25, 2021, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.27 ppb (4) N/A 22.5 μg/m3 (73) 73.0
 
July 25, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.28 ppb (4) N/A 25.1 μg/m3 (79) 79.0
 
July 25, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.27 ppb (4) N/A 25.2 μg/m3 (79) 79.0
 
July 25, 2021, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.22 ppb (3) N/A 25.2 μg/m3 (79) 79.0
 
July 25, 2021, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.29 ppb (4) N/A 24.3 μg/m3 (77) 77.0
 
July 25, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.29 ppb (4) N/A 24.8 μg/m3 (78) 78.0
 
July 25, 2021, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.29 ppb (4) N/A 24.4 μg/m3 (77) 77.0
 
July 25, 2021, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.22 ppb (3) N/A 24.9 μg/m3 (78) 78.0
 
July 24, 2021, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.29 ppb (4) N/A 24.9 μg/m3 (78) 78.0
 
July 24, 2021, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 48.0 ppb (45) 0.29 ppb (4) N/A 25.8 μg/m3 (80) 80.0
 
July 24, 2021, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 50.0 ppb (47) 0.29 ppb (4) N/A 26.4 μg/m3 (82) 82.0
 
July 24, 2021, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 51.0 ppb (48) 0.22 ppb (3) N/A 27.0 μg/m3 (83) 83.0
 
July 24, 2021, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 51.0 ppb (48) 0.29 ppb (4) N/A 27.1 μg/m3 (83) 83.0
 
July 24, 2021, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 51.0 ppb (48) 0.29 ppb (4) N/A 27.1 μg/m3 (83) 83.0
 
July 24, 2021, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 51.0 ppb (48) 0.27 ppb (4) N/A 25.9 μg/m3 (81) 81.0
 
July 24, 2021, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 49.0 ppb (46) 0.19 ppb (3) N/A 22.7 μg/m3 (74) 74.0
 
July 24, 2021, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 47.0 ppb (44) 0.24 ppb (3) N/A 20.8 μg/m3 (70) 70.0
 
July 24, 2021, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 49.0 ppb (46) 0.22 ppb (3) N/A 17.9 μg/m3 (64) 64.0
 
July 24, 2021, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 39.0 ppb (37) 0.17 ppb (3) N/A 12.2 μg/m3 (52) 52.0
 
July 24, 2021, noon N/A N/A N/A N/A N/A 1.0 ppb (2) 31.0 ppb (29) 0.12 ppb (2) N/A 10.7 μg/m3 (45) 45.0
 
July 24, 2021, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 30.0 ppb (28) 0.16 ppb (3) N/A 11.3 μg/m3 (48) 48.0
 
July 24, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 11.8 μg/m3 (50) 50.0
 
July 24, 2021, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 26.0 ppb (25) 0.16 ppb (3) N/A 13.3 μg/m3 (54) 54.0
 
July 24, 2021, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 33.0 ppb (31) 0.15 ppb (2) N/A 13.9 μg/m3 (55) 55.0
 
July 24, 2021, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 36.0 ppb (34) 0.21 ppb (3) N/A 16.0 μg/m3 (60) 60.0
 
July 24, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.23 ppb (3) N/A 16.7 μg/m3 (61) 61.0
 
July 24, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.22 ppb (3) N/A 15.2 μg/m3 (58) 58.0
 
July 24, 2021, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.17 ppb (3) N/A 15.9 μg/m3 (59) 59.0
 
July 24, 2021, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.26 ppb (4) N/A 18.5 μg/m3 (65) 65.0
 
July 24, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.27 ppb (4) N/A 19.1 μg/m3 (66) 66.0
 
July 24, 2021, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.27 ppb (4) N/A 18.6 μg/m3 (65) 65.0
 
July 24, 2021, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.2 ppb (3) N/A 18.0 μg/m3 (64) 64.0
 
July 23, 2021, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 56.0 ppb (55) 0.26 ppb (4) N/A 19.0 μg/m3 (66) 66.0
 
July 23, 2021, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 57.0 ppb (58) 0.25 ppb (3) N/A 18.4 μg/m3 (65) 65.0
 
July 23, 2021, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 57.0 ppb (58) 0.23 ppb (3) N/A 16.9 μg/m3 (62) 62.0
 
July 23, 2021, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 55.0 ppb (51) 0.18 ppb (3) N/A 17.6 μg/m3 (63) 63.0
 
July 23, 2021, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 54.0 ppb (50) 0.24 ppb (3) N/A 18.0 μg/m3 (64) 64.0
 
July 23, 2021, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 53.0 ppb (50) 0.26 ppb (4) N/A 18.9 μg/m3 (66) 66.0
 
July 23, 2021, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 52.0 ppb (49) 0.22 ppb (3) N/A 17.0 μg/m3 (62) 62.0
 
July 23, 2021, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 46.0 ppb (43) 0.15 ppb (2) N/A 11.2 μg/m3 (47) 47.0
 
July 23, 2021, 3 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 42.0 ppb (39) 0.17 ppb (3) N/A 8.6 μg/m3 (36) 39.0
 
July 23, 2021, 2 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 35.0 ppb (33) 0.16 ppb (3) N/A 7.8 μg/m3 (33) 33.0
 
July 23, 2021, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 29.0 ppb (27) 0.16 ppb (3) N/A 7.8 μg/m3 (33) 33.0
 
July 23, 2021, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.15 ppb (2) N/A 8.5 μg/m3 (36) 36.0
 
July 23, 2021, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 8.0 ppb (8) 0.2 ppb (3) N/A 9.3 μg/m3 (39) 39.0
 
July 23, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A N/A 11.0 μg/m3 (46) 46.0
 
July 23, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 3.0 ppb (3) 0.19 ppb (3) N/A 11.1 μg/m3 (47) 47.0
 
July 23, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 5.0 ppb (5) 0.16 ppb (3) N/A 11.2 μg/m3 (47) 47.0
 
July 23, 2021, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 10.0 ppb (10) 0.2 ppb (3) N/A 12.1 μg/m3 (51) 51.0
 
July 23, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 17.0 ppb (16) 0.22 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
July 23, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 15.0 ppb (14) 0.22 ppb (3) N/A 11.8 μg/m3 (50) 50.0
 
July 23, 2021, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 15.0 ppb (14) 0.16 ppb (3) N/A 12.1 μg/m3 (51) 51.0
 
July 23, 2021, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 10.0 ppb (10) 0.22 ppb (3) N/A 12.1 μg/m3 (51) 51.0
 
July 23, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 4.0 ppb (4) 0.24 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
July 23, 2021, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 5.0 ppb (5) 0.23 ppb (3) N/A 11.7 μg/m3 (49) 49.0
 
July 23, 2021, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 16.0 ppb (15) 0.17 ppb (3) N/A 11.6 μg/m3 (49) 49.0
 
July 22, 2021, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 48.0 ppb (45) 0.18 ppb (3) N/A 12.2 μg/m3 (52) 52.0
 
July 22, 2021, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 51.0 ppb (48) 0.2 ppb (3) N/A 13.4 μg/m3 (54) 54.0
 
July 22, 2021, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 53.0 ppb (50) 0.19 ppb (3) N/A 13.7 μg/m3 (55) 55.0
 
July 22, 2021, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 51.0 ppb (48) 0.16 ppb (3) N/A 14.5 μg/m3 (57) 57.0
 
July 22, 2021, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 50.0 ppb (47) 0.21 ppb (3) N/A 15.5 μg/m3 (59) 59.0
 
July 22, 2021, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 50.0 ppb (47) 0.21 ppb (3) N/A 15.0 μg/m3 (58) 58.0
 
July 22, 2021, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 51.0 ppb (48) 0.2 ppb (3) N/A 14.4 μg/m3 (56) 56.0
 
July 22, 2021, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 49.0 ppb (46) 0.17 ppb (3) N/A 13.5 μg/m3 (54) 54.0
 
July 22, 2021, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 45.0 ppb (42) 0.2 ppb (3) N/A 12.1 μg/m3 (51) 51.0
 
July 22, 2021, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 41.0 ppb (38) 0.19 ppb (3) N/A 12.7 μg/m3 (53) 53.0
 
July 22, 2021, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.22 ppb (3) N/A 13.1 μg/m3 (54) 54.0
 
July 22, 2021, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 17.0 ppb (16) 0.19 ppb (3) N/A 17.4 μg/m3 (63) 63.0
 
July 22, 2021, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 4.0 ppb (4) 0.26 ppb (4) N/A 21.1 μg/m3 (70) 70.0
 
July 22, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) N/A N/A 23.1 μg/m3 (75) 75.0
 
July 22, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 9.0 ppb (9) 0.24 ppb (3) N/A 23.0 μg/m3 (74) 74.0
 
July 22, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 6.0 ppb (6) 0.17 ppb (3) N/A 21.5 μg/m3 (71) 71.0
 
July 22, 2021, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 5.0 ppb (5) 0.24 ppb (3) N/A 21.7 μg/m3 (72) 72.0
 
July 22, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 9.0 ppb (9) 0.25 ppb (3) N/A 21.7 μg/m3 (72) 72.0
 
July 22, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.25 ppb (3) N/A 21.4 μg/m3 (71) 71.0
 
July 22, 2021, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.23 ppb (3) N/A 20.5 μg/m3 (69) 69.0
 
July 22, 2021, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.3 ppb (4) N/A 20.7 μg/m3 (70) 70.0
 
July 22, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.3 ppb (4) N/A 20.6 μg/m3 (69) 69.0
 
July 22, 2021, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.29 ppb (4) N/A 20.5 μg/m3 (69) 69.0
 
July 22, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 20.5 μg/m3 (69) 69.0
 
July 21, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 19.6 μg/m3 (67) 67.0
 
July 21, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 20.9 μg/m3 (70) 70.0
 
July 21, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 23.4 μg/m3 (75) 75.0
 
July 21, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 25.2 μg/m3 (79) 79.0
 
July 21, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 25.5 μg/m3 (80) 80.0
 
July 21, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 26.1 μg/m3 (81) 81.0
 
July 21, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 27.2 μg/m3 (83) 83.0
 
July 21, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (85) 85.0
 
July 21, 2021, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.28 ppb (4) N/A 25.1 μg/m3 (79) 79.0
 
July 21, 2021, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.27 ppb (4) N/A 22.7 μg/m3 (74) 74.0
 
July 21, 2021, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.28 ppb (4) N/A 28.3 μg/m3 (86) 86.0
 
July 21, 2021, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.3 ppb (4) N/A 34.9 μg/m3 (99) 99.0
 
July 21, 2021, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.34 ppb (4) N/A 44.0 μg/m3 (122) 122.0
 
July 21, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 40.6 μg/m3 (114) 114.0
 
July 21, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.31 ppb (4) N/A 29.4 μg/m3 (88) 88.0
 
July 21, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.24 ppb (3) N/A 22.7 μg/m3 (74) 74.0
 
July 21, 2021, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.24 ppb (3) N/A 21.8 μg/m3 (72) 72.0
 
July 21, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 12.0 ppb (12) 0.24 ppb (3) N/A 22.0 μg/m3 (72) 72.0
 
July 21, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 3.0 ppb (3) 0.25 ppb (3) N/A 23.0 μg/m3 (74) 74.0
 
July 21, 2021, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 1.0 ppb (1) 0.25 ppb (3) N/A 23.2 μg/m3 (75) 75.0
 
July 21, 2021, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 0.0 ppb (0) 0.24 ppb (3) N/A 22.8 μg/m3 (74) 74.0
 
July 21, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 0.0 ppb (0) 0.24 ppb (3) N/A 22.7 μg/m3 (74) 74.0
 
July 21, 2021, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 14.0 ppb (13) 0.21 ppb (3) N/A 21.9 μg/m3 (72) 72.0
 
July 21, 2021, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.2 ppb (3) N/A 21.2 μg/m3 (71) 71.0
 
July 20, 2021, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.21 ppb (3) N/A 21.3 μg/m3 (71) 71.0
 
July 20, 2021, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 45.0 ppb (42) 0.22 ppb (3) N/A 24.1 μg/m3 (77) 77.0
 
July 20, 2021, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 47.0 ppb (44) 0.25 ppb (3) N/A 29.1 μg/m3 (87) 87.0
 
July 20, 2021, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 50.0 ppb (47) 0.25 ppb (3) N/A 26.4 μg/m3 (82) 82.0
 
July 20, 2021, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 49.0 ppb (46) 0.25 ppb (3) N/A 27.6 μg/m3 (84) 84.0
 
July 20, 2021, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 46.0 ppb (43) 0.24 ppb (3) N/A 26.9 μg/m3 (83) 83.0
 
July 20, 2021, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 46.0 ppb (43) 0.22 ppb (3) N/A 22.7 μg/m3 (74) 74.0
 
July 20, 2021, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.2 ppb (3) N/A 18.9 μg/m3 (66) 66.0
 
July 20, 2021, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.2 ppb (3) N/A 18.3 μg/m3 (65) 65.0
 
July 20, 2021, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 39.0 ppb (37) 0.2 ppb (3) N/A 18.0 μg/m3 (64) 64.0
 
July 20, 2021, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 29.0 ppb (27) 0.2 ppb (3) N/A 17.6 μg/m3 (63) 63.0
 
July 20, 2021, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.22 ppb (3) N/A 19.1 μg/m3 (66) 66.0
 
July 20, 2021, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 14.0 ppb (13) 0.24 ppb (3) N/A 21.0 μg/m3 (70) 70.0
 
July 20, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A 22.8 μg/m3 (74) 74.0
 
July 20, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 21.0 ppb (20) 0.2 ppb (3) N/A 23.0 μg/m3 (74) 74.0
 
July 20, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 17.0 ppb (16) 0.17 ppb (3) N/A 22.8 μg/m3 (74) 74.0
 
July 20, 2021, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.2 ppb (3) N/A 23.2 μg/m3 (75) 75.0
 
July 20, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.2 ppb (3) N/A 23.3 μg/m3 (75) 75.0
 
July 20, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.17 ppb (3) N/A 23.2 μg/m3 (75) 75.0
 
July 20, 2021, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.21 ppb (3) N/A 21.9 μg/m3 (72) 72.0
 
July 20, 2021, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 15.0 ppb (14) 0.21 ppb (3) N/A 21.3 μg/m3 (71) 71.0
 
July 20, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 13.0 ppb (13) 0.21 ppb (3) N/A 22.4 μg/m3 (73) 73.0
 
July 20, 2021, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.21 ppb (3) N/A 22.2 μg/m3 (73) 73.0
 
July 20, 2021, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.21 ppb (3) N/A 22.5 μg/m3 (73) 73.0
 
July 19, 2021, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.2 ppb (3) N/A 22.6 μg/m3 (74) 74.0
 
July 19, 2021, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.2 ppb (3) N/A 22.7 μg/m3 (74) 74.0
 
July 19, 2021, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (38) 0.2 ppb (3) N/A 22.2 μg/m3 (73) 73.0
 
July 19, 2021, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.19 ppb (3) N/A 22.6 μg/m3 (74) 74.0
 
July 19, 2021, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.18 ppb (3) N/A 22.1 μg/m3 (73) 73.0