ID: 1900

AQSQID: 181630021

Site Name: Evansville-Buena Vista

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

Updated: July 31, 2021, 3:55 a.m.

Location: Evansville (W Buena Vista Rd), IN

Reporting: True, Located: True

Current AQI: 90.0

Evansville (W Buena Vista Rd) IN, US: 38.0133, -87.5772

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 24, 2021, 2 a.m. N/A N/A N/A 11.0 ppb (11) N/A 1.0 ppb (2) 39.0 ppb (37) N/A N/A 31.7 μg/m3 (93) 93.0
 
July 24, 2021, 1 a.m. N/A N/A N/A 3.0 ppb (3) N/A 2.0 ppb (3) 60.0 ppb (68) N/A N/A 31.3 μg/m3 (92) 92.0
 
July 24, 2021, midnight N/A N/A N/A 5.0 ppb (5) N/A 3.0 ppb (5) 61.0 ppb (71) N/A N/A 29.4 μg/m3 (88) 88.0
 
July 23, 2021, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A 2.0 ppb (3) 65.0 ppb (84) N/A N/A 28.3 μg/m3 (86) 86.0
 
July 23, 2021, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A 2.0 ppb (3) 67.0 ppb (91) N/A N/A 27.9 μg/m3 (85) 91.0
 
July 23, 2021, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A 2.0 ppb (3) 65.0 ppb (84) N/A N/A 26.9 μg/m3 (83) 84.0
 
July 23, 2021, 8 p.m. N/A N/A N/A 3.0 ppb (3) N/A 2.0 ppb (3) 64.0 ppb (81) N/A N/A 26.5 μg/m3 (82) 82.0
 
July 23, 2021, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A 2.0 ppb (3) 62.0 ppb (74) N/A N/A 26.8 μg/m3 (82) 82.0
 
July 23, 2021, 6 p.m. N/A N/A N/A 3.0 ppb (3) N/A 3.0 ppb (5) 65.0 ppb (84) N/A N/A 27.4 μg/m3 (84) 84.0
 
July 23, 2021, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A 2.0 ppb (3) 64.0 ppb (81) N/A N/A 28.0 μg/m3 (85) 85.0
 
July 23, 2021, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 60.0 ppb (68) N/A N/A 24.8 μg/m3 (78) 78.0
 
July 23, 2021, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 55.0 ppb (51) N/A N/A 23.4 μg/m3 (75) 75.0
 
July 23, 2021, 2 p.m. N/A N/A N/A 4.0 ppb (4) N/A 2.0 ppb (3) 46.0 ppb (43) N/A N/A 23.2 μg/m3 (75) 75.0
 
July 23, 2021, 1 p.m. N/A N/A N/A 8.0 ppb (8) N/A 1.0 ppb (2) 30.0 ppb (28) N/A N/A 26.3 μg/m3 (81) 81.0
 
July 23, 2021, noon N/A N/A N/A 10.0 ppb (10) N/A 1.0 ppb (2) 16.0 ppb (15) N/A N/A 28.2 μg/m3 (85) 85.0
 
July 23, 2021, 11 a.m. N/A N/A N/A 9.0 ppb (9) N/A 1.0 ppb (2) 3.0 ppb (3) N/A N/A 27.6 μg/m3 (84) 84.0
 
July 23, 2021, 10 a.m. N/A N/A N/A 9.0 ppb (9) N/A 0.0 ppb (0) 2.0 ppb (2) N/A N/A 27.7 μg/m3 (84) 84.0
 
July 23, 2021, 9 a.m. N/A N/A N/A 8.0 ppb (8) N/A 0.0 ppb (0) 3.0 ppb (3) N/A N/A 27.6 μg/m3 (84) 84.0
 
July 23, 2021, 8 a.m. N/A N/A N/A 8.0 ppb (8) N/A 1.0 ppb (2) 7.0 ppb (7) N/A N/A 28.7 μg/m3 (86) 86.0
 
July 23, 2021, 7 a.m. N/A N/A N/A 11.0 ppb (11) N/A 1.0 ppb (2) 5.0 ppb (5) N/A N/A 28.4 μg/m3 (86) 86.0
 
July 23, 2021, 6 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 16.0 ppb (15) N/A N/A 27.5 μg/m3 (84) 84.0
 
July 23, 2021, 5 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 23.0 ppb (22) N/A N/A 27.9 μg/m3 (85) 85.0
 
July 23, 2021, 4 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 28.0 ppb (26) N/A N/A 28.1 μg/m3 (85) 85.0
 
July 23, 2021, 3 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 37.0 ppb (35) N/A N/A 27.9 μg/m3 (85) 85.0
 
July 23, 2021, 2 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 41.0 ppb (38) N/A N/A 27.4 μg/m3 (84) 84.0
 
July 23, 2021, 1 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 44.0 ppb (41) N/A N/A 27.9 μg/m3 (85) 85.0
 
July 23, 2021, midnight N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 49.0 ppb (46) N/A N/A 29.3 μg/m3 (88) 88.0
 
July 22, 2021, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 51.0 ppb (48) N/A N/A 29.7 μg/m3 (89) 89.0
 
July 22, 2021, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 52.0 ppb (49) N/A N/A 30.8 μg/m3 (91) 91.0
 
July 22, 2021, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 55.0 ppb (51) N/A N/A 34.1 μg/m3 (98) 98.0
 
July 22, 2021, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 58.0 ppb (61) N/A N/A 36.4 μg/m3 (104) 104.0
 
July 22, 2021, 7 p.m. N/A N/A N/A 0.0 ppb (0) N/A 1.0 ppb (2) 59.0 ppb (65) N/A N/A 38.5 μg/m3 (109) 109.0
 
July 22, 2021, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 2.0 ppb (3) 66.0 ppb (87) N/A N/A 41.0 μg/m3 (115) 115.0
 
July 22, 2021, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A 2.0 ppb (3) 65.0 ppb (84) N/A N/A 40.6 μg/m3 (114) 114.0
 
July 22, 2021, 4 p.m. N/A N/A N/A 3.0 ppb (3) N/A 2.0 ppb (3) 57.0 ppb (58) N/A N/A 38.1 μg/m3 (108) 108.0
 
July 22, 2021, 3 p.m. N/A N/A N/A 4.0 ppb (4) N/A 3.0 ppb (5) 51.0 ppb (48) N/A N/A 34.5 μg/m3 (99) 99.0
 
July 22, 2021, 2 p.m. N/A N/A N/A 5.0 ppb (5) N/A 3.0 ppb (5) 40.0 ppb (38) N/A N/A 33.3 μg/m3 (96) 96.0
 
July 22, 2021, 1 p.m. N/A N/A N/A 7.0 ppb (7) N/A 2.0 ppb (3) 27.0 ppb (25) N/A N/A 40.0 μg/m3 (113) 113.0
 
July 22, 2021, noon N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 20.0 ppb (19) N/A N/A 44.0 μg/m3 (122) 122.0
 
July 22, 2021, 11 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 14.0 ppb (13) N/A N/A 49.9 μg/m3 (137) 137.0
 
July 22, 2021, 10 a.m. N/A N/A N/A 7.0 ppb (7) N/A 0.0 ppb (0) 4.0 ppb (4) N/A N/A 52.0 μg/m3 (142) 142.0
 
July 22, 2021, 9 a.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 4.0 ppb (4) N/A N/A 51.8 μg/m3 (142) 142.0
 
July 22, 2021, 8 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 8.0 ppb (8) N/A N/A 53.6 μg/m3 (146) 146.0
 
July 22, 2021, 7 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 9.0 ppb (9) N/A N/A 54.2 μg/m3 (148) 148.0
 
July 22, 2021, 6 a.m. N/A N/A N/A 9.0 ppb (9) N/A 1.0 ppb (2) 11.0 ppb (11) N/A N/A 56.1 μg/m3 (152) 152.0
 
July 22, 2021, 5 a.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 8.0 ppb (8) N/A N/A 57.2 μg/m3 (152) 152.0
 
July 22, 2021, 4 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 14.0 ppb (13) N/A N/A 58.3 μg/m3 (153) 153.0
 
July 22, 2021, 3 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 21.0 ppb (20) N/A N/A 59.1 μg/m3 (153) 153.0
 
July 22, 2021, 2 a.m. N/A N/A N/A 8.0 ppb (8) N/A 1.0 ppb (2) 28.0 ppb (26) N/A N/A 60.4 μg/m3 (154) 154.0
 
July 22, 2021, 1 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 42.0 ppb (39) N/A N/A 58.4 μg/m3 (153) 153.0
 
July 22, 2021, midnight N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 54.0 ppb (50) N/A N/A 57.4 μg/m3 (152) 152.0
 
July 21, 2021, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 61.0 ppb (71) N/A N/A 52.6 μg/m3 (144) 144.0
 
July 21, 2021, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 57.0 ppb (58) N/A N/A 37.3 μg/m3 (106) 106.0
 
July 21, 2021, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 60.0 ppb (68) N/A N/A 27.8 μg/m3 (85) 85.0
 
July 21, 2021, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 63.0 ppb (78) N/A N/A 26.5 μg/m3 (82) 82.0
 
July 21, 2021, 7 p.m. N/A N/A N/A 0.0 ppb (0) N/A 1.0 ppb (2) 66.0 ppb (87) N/A N/A 25.6 μg/m3 (80) 87.0
 
July 21, 2021, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 73.0 ppb (103) N/A N/A 25.7 μg/m3 (80) 103.0
 
July 21, 2021, 5 p.m. N/A N/A N/A 0.0 ppb (0) N/A 1.0 ppb (2) 65.0 ppb (84) N/A N/A 20.6 μg/m3 (69) 84.0
 
July 21, 2021, 4 p.m. N/A N/A N/A 0.0 ppb (0) N/A 1.0 ppb (2) 59.0 ppb (65) N/A N/A 18.3 μg/m3 (65) 65.0
 
July 21, 2021, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 49.0 ppb (46) N/A N/A 17.2 μg/m3 (62) 62.0
 
July 21, 2021, 2 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 41.0 ppb (38) N/A N/A 17.1 μg/m3 (62) 62.0
 
July 21, 2021, 1 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 18.2 μg/m3 (64) 64.0
 
July 21, 2021, noon N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 14.0 ppb (13) N/A N/A 19.5 μg/m3 (67) 67.0
 
July 21, 2021, 11 a.m. N/A N/A N/A 7.0 ppb (7) N/A 0.0 ppb (0) 9.0 ppb (9) N/A N/A 20.3 μg/m3 (69) 69.0
 
July 21, 2021, 10 a.m. N/A N/A N/A 9.0 ppb (9) N/A 0.0 ppb (0) N/A N/A N/A 21.4 μg/m3 (71) 71.0
 
July 21, 2021, 9 a.m. N/A N/A N/A 13.0 ppb (13) N/A 1.0 ppb (2) 4.0 ppb (4) N/A N/A 20.8 μg/m3 (70) 70.0
 
July 21, 2021, 8 a.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 14.0 ppb (13) N/A N/A 21.1 μg/m3 (70) 70.0
 
July 21, 2021, 7 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 20.0 ppb (19) N/A N/A 21.0 μg/m3 (70) 70.0
 
July 21, 2021, 6 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 28.0 ppb (26) N/A N/A 20.6 μg/m3 (69) 69.0
 
July 21, 2021, 5 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 27.0 ppb (25) N/A N/A 21.4 μg/m3 (71) 71.0
 
July 21, 2021, 4 a.m. N/A N/A N/A 10.0 ppb (10) N/A 1.0 ppb (2) 15.0 ppb (14) N/A N/A 21.6 μg/m3 (71) 71.0
 
July 21, 2021, 3 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 23.0 ppb (22) N/A N/A 22.0 μg/m3 (72) 72.0
 
July 21, 2021, 2 a.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 27.0 ppb (25) N/A N/A 21.1 μg/m3 (70) 70.0
 
July 21, 2021, 1 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 42.0 ppb (39) N/A N/A 20.1 μg/m3 (68) 68.0
 
July 21, 2021, midnight N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 49.0 ppb (46) N/A N/A 19.2 μg/m3 (66) 66.0
 
July 20, 2021, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 53.0 ppb (50) N/A N/A 19.2 μg/m3 (66) 66.0
 
July 20, 2021, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 57.0 ppb (58) N/A N/A 19.7 μg/m3 (67) 67.0
 
July 20, 2021, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 56.0 ppb (55) N/A N/A 19.8 μg/m3 (68) 68.0
 
July 20, 2021, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 2.0 ppb (3) 55.0 ppb (51) N/A N/A 21.6 μg/m3 (71) 71.0
 
July 20, 2021, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 52.0 ppb (49) N/A N/A 22.0 μg/m3 (72) 72.0
 
July 20, 2021, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 52.0 ppb (49) N/A N/A 23.3 μg/m3 (75) 75.0
 
July 20, 2021, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 47.0 ppb (44) N/A N/A 22.9 μg/m3 (74) 74.0
 
July 20, 2021, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 43.0 ppb (40) N/A N/A 22.6 μg/m3 (74) 74.0
 
July 20, 2021, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 38.0 ppb (36) N/A N/A 22.3 μg/m3 (73) 73.0
 
July 20, 2021, 2 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 31.0 ppb (29) N/A N/A 21.9 μg/m3 (72) 72.0
 
July 20, 2021, 1 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 23.0 ppb (22) N/A N/A 23.0 μg/m3 (74) 74.0
 
July 20, 2021, noon N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 20.0 ppb (19) N/A N/A 22.7 μg/m3 (74) 74.0
 
July 20, 2021, 11 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 20.0 ppb (19) N/A N/A 23.1 μg/m3 (75) 75.0
 
July 20, 2021, 10 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 21.0 ppb (20) N/A N/A 22.9 μg/m3 (74) 74.0
 
July 20, 2021, 9 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 20.0 ppb (19) N/A N/A 22.7 μg/m3 (74) 74.0
 
July 20, 2021, 8 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 20.0 ppb (19) N/A N/A 22.3 μg/m3 (73) 73.0
 
July 20, 2021, 7 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 19.0 ppb (18) N/A N/A 22.0 μg/m3 (72) 72.0
 
July 20, 2021, 6 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 20.0 ppb (19) N/A N/A 21.9 μg/m3 (72) 72.0
 
July 20, 2021, 5 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 23.0 ppb (22) N/A N/A 21.6 μg/m3 (71) 71.0
 
July 20, 2021, 4 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 24.0 ppb (23) N/A N/A 21.7 μg/m3 (72) 72.0
 
July 20, 2021, 3 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 25.0 ppb (24) N/A N/A 22.2 μg/m3 (73) 73.0
 
July 20, 2021, 2 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 27.0 ppb (25) N/A N/A 23.3 μg/m3 (75) 75.0
 
July 20, 2021, 1 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 30.0 ppb (28) N/A N/A 23.7 μg/m3 (76) 76.0
 
July 20, 2021, midnight N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 33.0 ppb (31) N/A N/A 24.3 μg/m3 (77) 77.0
 
July 19, 2021, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 38.0 ppb (36) N/A N/A 24.5 μg/m3 (78) 78.0
 
July 19, 2021, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 40.0 ppb (38) N/A N/A 23.8 μg/m3 (76) 76.0
 
July 19, 2021, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 40.0 ppb (38) N/A N/A 22.0 μg/m3 (72) 72.0
 
July 19, 2021, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 41.0 ppb (38) N/A N/A 21.3 μg/m3 (71) 71.0
 
July 19, 2021, 7 p.m. N/A N/A N/A 0.0 ppb (0) N/A 1.0 ppb (2) 43.0 ppb (40) N/A N/A 21.2 μg/m3 (71) 71.0
 
July 19, 2021, 6 p.m. N/A N/A N/A 0.0 ppb (0) N/A 1.0 ppb (2) 41.0 ppb (38) N/A N/A 18.6 μg/m3 (65) 65.0
 
July 19, 2021, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 37.0 ppb (35) N/A N/A N/A 35.0
 
July 19, 2021, 4 p.m. N/A N/A N/A 0.0 ppb (0) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A N/A 32.0
 
July 19, 2021, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 15.3 μg/m3 (58) 58.0
 
July 19, 2021, 2 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 30.0 ppb (28) N/A N/A 14.1 μg/m3 (56) 56.0
 
July 19, 2021, 1 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 26.0 ppb (25) N/A N/A 13.6 μg/m3 (55) 55.0
 
July 19, 2021, noon N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 20.0 ppb (19) N/A N/A 12.4 μg/m3 (52) 52.0
 
July 19, 2021, 11 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 18.0 ppb (17) N/A N/A 11.4 μg/m3 (48) 48.0
 
July 19, 2021, 10 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 19.0 ppb (18) N/A N/A 10.8 μg/m3 (46) 46.0
 
July 19, 2021, 9 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 20.0 ppb (19) N/A N/A 9.8 μg/m3 (41) 41.0
 
July 19, 2021, 8 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 20.0 ppb (19) N/A N/A 9.1 μg/m3 (38) 38.0
 
July 19, 2021, 7 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 20.0 ppb (19) N/A N/A 8.6 μg/m3 (36) 36.0
 
July 19, 2021, 6 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 8.4 μg/m3 (36) 36.0
 
July 19, 2021, 5 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 8.6 μg/m3 (36) 36.0
 
July 19, 2021, 4 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A 8.4 μg/m3 (36) 36.0
 
July 19, 2021, 3 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 9.3 μg/m3 (39) 39.0
 
July 19, 2021, 2 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 20.0 ppb (19) N/A N/A 8.6 μg/m3 (36) 36.0
 
July 19, 2021, 1 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (25) N/A N/A 8.0 μg/m3 (34) 34.0
 
July 19, 2021, midnight N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 31.0 ppb (29) N/A N/A 7.6 μg/m3 (32) 32.0
 
July 18, 2021, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 38.0 ppb (36) N/A N/A 5.2 μg/m3 (22) 36.0
 
July 18, 2021, 10 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 42.0 ppb (39) N/A N/A 4.7 μg/m3 (20) 39.0
 
July 18, 2021, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 48.0 ppb (45) N/A N/A 5.4 μg/m3 (23) 45.0
 
July 18, 2021, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 39.0 ppb (37) N/A N/A 9.2 μg/m3 (39) 39.0
 
July 18, 2021, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 10.8 μg/m3 (46) 46.0
 
July 18, 2021, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 10.4 μg/m3 (44) 44.0
 
July 18, 2021, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 10.3 μg/m3 (43) 43.0
 
July 18, 2021, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 11.0 μg/m3 (46) 46.0
 
July 18, 2021, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 33.0 ppb (31) N/A N/A 11.3 μg/m3 (48) 48.0
 
July 18, 2021, 2 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 27.0 ppb (25) N/A N/A 11.7 μg/m3 (49) 49.0
 
July 18, 2021, 1 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 27.0 ppb (25) N/A N/A 12.3 μg/m3 (52) 52.0
 
July 18, 2021, noon N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 22.0 ppb (21) N/A N/A 13.9 μg/m3 (55) 55.0
 
July 18, 2021, 11 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 20.0 ppb (19) N/A N/A 15.1 μg/m3 (58) 58.0
 
July 18, 2021, 10 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 20.0 ppb (19) N/A N/A 16.1 μg/m3 (60) 60.0
 
July 18, 2021, 9 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 15.0 ppb (14) N/A N/A 15.6 μg/m3 (59) 59.0
 
July 18, 2021, 8 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 15.3 μg/m3 (58) 58.0
 
July 18, 2021, 7 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 9.0 ppb (9) N/A N/A 16.1 μg/m3 (60) 60.0
 
July 18, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 5.0 ppb (5) N/A N/A 16.6 μg/m3 (61) 61.0
 
July 18, 2021, 5 a.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 9.0 ppb (9) N/A N/A 16.6 μg/m3 (61) 61.0
 
July 18, 2021, 4 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 19.0 ppb (18) N/A N/A 14.6 μg/m3 (57) 57.0
 
July 18, 2021, 3 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 28.0 ppb (26) N/A N/A 13.9 μg/m3 (55) 55.0
 
July 18, 2021, 2 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 33.0 ppb (31) N/A N/A 13.5 μg/m3 (54) 54.0
 
July 18, 2021, 1 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 37.0 ppb (35) N/A N/A 12.6 μg/m3 (53) 53.0
 
July 18, 2021, midnight N/A N/A N/A 1.0 ppb (1) N/A 2.0 ppb (3) 43.0 ppb (40) N/A N/A 12.2 μg/m3 (52) 52.0
 
July 17, 2021, 11 p.m. N/A N/A N/A 0.0 ppb (0) N/A 2.0 ppb (3) 43.0 ppb (40) N/A N/A 10.1 μg/m3 (43) 43.0
 
July 17, 2021, 10 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 37.0 ppb (35) N/A N/A 7.8 μg/m3 (33) 35.0
 
July 17, 2021, 9 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 37.0 ppb (35) N/A N/A 7.6 μg/m3 (32) 35.0
 
July 17, 2021, 8 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 37.0 ppb (35) N/A N/A 7.0 μg/m3 (30) 35.0
 
July 17, 2021, 7 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 36.0 ppb (34) N/A N/A 6.5 μg/m3 (28) 34.0
 
July 17, 2021, 6 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 6.4 μg/m3 (27) 32.0
 
July 17, 2021, 5 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 32.0 ppb (30) N/A N/A 6.2 μg/m3 (26) 30.0
 
July 17, 2021, 4 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 6.2 μg/m3 (26) 31.0
 
July 17, 2021, 3 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 27.0 ppb (25) N/A N/A 5.9 μg/m3 (25) 25.0
 
July 17, 2021, 2 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 4.7 μg/m3 (20) 22.0
 
July 17, 2021, 1 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A 4.8 μg/m3 (20) 21.0
 
July 17, 2021, noon N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 17.0 ppb (16) N/A N/A 5.3 μg/m3 (23) 23.0
 
July 17, 2021, 11 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 16.0 ppb (15) N/A N/A 5.6 μg/m3 (24) 24.0
 
July 17, 2021, 10 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 17.0 ppb (16) N/A N/A 5.6 μg/m3 (24) 24.0
 
July 17, 2021, 9 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 16.0 ppb (15) N/A N/A 6.3 μg/m3 (27) 27.0
 
July 17, 2021, 8 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 12.0 ppb (12) N/A N/A 6.7 μg/m3 (28) 28.0
 
July 17, 2021, 7 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 12.0 ppb (12) N/A N/A 6.4 μg/m3 (27) 27.0
 
July 17, 2021, 6 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 12.0 ppb (12) N/A N/A 5.6 μg/m3 (24) 24.0
 
July 17, 2021, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 16.0 ppb (15) N/A N/A 5.0 μg/m3 (21) 21.0
 
July 17, 2021, 4 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 16.0 ppb (15) N/A N/A 4.2 μg/m3 (18) 18.0
 
July 17, 2021, 3 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 22.0 ppb (21) N/A N/A 3.7 μg/m3 (16) 21.0