ID: 2037

AQSQID: 550350014

Site Name: Eau Claire

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

Updated: July 31, 2021, 4:55 a.m.

Location: Eau Claire (US Route 53), WI

Reporting: True, Located: True

Current AQI: 94.0

Eau Claire (US Route 53) WI, US: 44.761398, -91.413002

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 24, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 51.0 μg/m3 (48) 25.6 μg/m3 (80) 80.0
 
July 24, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A 53.0 μg/m3 (50) 25.6 μg/m3 (80) 80.0
 
July 24, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A 51.0 μg/m3 (48) 25.3 μg/m3 (79) 79.0
 
July 24, 2021, midnight N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A 54.0 μg/m3 (50) 25.1 μg/m3 (79) 79.0
 
July 23, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A 50.0 μg/m3 (47) 25.6 μg/m3 (80) 80.0
 
July 23, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A 51.0 μg/m3 (48) 26.0 μg/m3 (81) 81.0
 
July 23, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A 47.0 μg/m3 (44) 26.4 μg/m3 (82) 82.0
 
July 23, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A 44.0 μg/m3 (41) 26.0 μg/m3 (81) 81.0
 
July 23, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A 46.0 μg/m3 (43) 26.4 μg/m3 (82) 82.0
 
July 23, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A 46.0 μg/m3 (43) 26.9 μg/m3 (83) 83.0
 
July 23, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 50.0 μg/m3 (47) 28.0 μg/m3 (85) 85.0
 
July 23, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 50.0 μg/m3 (47) 28.2 μg/m3 (85) 85.0
 
July 23, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 49.0 μg/m3 (46) 28.2 μg/m3 (85) 85.0
 
July 23, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 43.0 μg/m3 (40) 27.8 μg/m3 (85) 85.0
 
July 23, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 43.0 μg/m3 (40) 28.3 μg/m3 (86) 86.0
 
July 23, 2021, noon N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 48.0 μg/m3 (45) 28.8 μg/m3 (87) 87.0
 
July 23, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 46.0 μg/m3 (43) 27.5 μg/m3 (84) 84.0
 
July 23, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 43.0 μg/m3 (40) 26.1 μg/m3 (81) 81.0
 
July 23, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 42.0 μg/m3 (39) 25.5 μg/m3 (80) 80.0
 
July 23, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 43.0 μg/m3 (40) 25.0 μg/m3 (79) 79.0
 
July 23, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 40.0 μg/m3 (38) 23.9 μg/m3 (76) 76.0
 
July 23, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 41.0 μg/m3 (38) 23.5 μg/m3 (75) 75.0
 
July 23, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 37.0 μg/m3 (35) 22.9 μg/m3 (74) 74.0
 
July 23, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 39.0 μg/m3 (37) 22.5 μg/m3 (73) 73.0
 
July 23, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 36.0 μg/m3 (34) 22.2 μg/m3 (73) 73.0
 
July 23, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 36.0 μg/m3 (34) 21.6 μg/m3 (71) 71.0
 
July 23, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 39.0 μg/m3 (37) 22.0 μg/m3 (72) 72.0
 
July 23, 2021, midnight N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A 37.0 μg/m3 (35) 21.8 μg/m3 (72) 72.0
 
July 22, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A 40.0 μg/m3 (38) 22.0 μg/m3 (72) 72.0
 
July 22, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 31.0 μg/m3 (29) 21.1 μg/m3 (70) 70.0
 
July 22, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 37.0 μg/m3 (35) 22.1 μg/m3 (73) 73.0
 
July 22, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 38.0 μg/m3 (36) 22.9 μg/m3 (74) 74.0
 
July 22, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 37.0 μg/m3 (35) 21.7 μg/m3 (72) 72.0
 
July 22, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 37.0 μg/m3 (35) 21.7 μg/m3 (72) 72.0
 
July 22, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 38.0 μg/m3 (36) 22.2 μg/m3 (73) 73.0
 
July 22, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 40.0 μg/m3 (38) 23.3 μg/m3 (75) 75.0
 
July 22, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 37.0 μg/m3 (35) 24.2 μg/m3 (77) 77.0
 
July 22, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 40.0 μg/m3 (38) 24.9 μg/m3 (78) 78.0
 
July 22, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 40.0 μg/m3 (38) 25.8 μg/m3 (80) 80.0
 
July 22, 2021, noon N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 37.0 μg/m3 (35) 25.5 μg/m3 (80) 80.0
 
July 22, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 36.0 μg/m3 (34) 24.8 μg/m3 (78) 78.0
 
July 22, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 35.0 μg/m3 (33) 24.1 μg/m3 (77) 77.0
 
July 22, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 31.0 μg/m3 (29) 22.3 μg/m3 (73) 73.0
 
July 22, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 31.0 μg/m3 (29) 21.7 μg/m3 (72) 72.0
 
July 22, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 30.0 μg/m3 (28) 21.1 μg/m3 (70) 70.0
 
July 22, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 30.0 μg/m3 (28) 22.1 μg/m3 (73) 73.0
 
July 22, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 33.0 μg/m3 (31) 23.5 μg/m3 (75) 75.0
 
July 22, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 35.0 μg/m3 (33) 25.4 μg/m3 (79) 79.0
 
July 22, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 40.0 μg/m3 (38) 29.2 μg/m3 (87) 87.0
 
July 22, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 45.0 μg/m3 (42) 32.8 μg/m3 (95) 95.0
 
July 22, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 47.0 μg/m3 (44) 33.4 μg/m3 (96) 96.0
 
July 22, 2021, midnight N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 52.0 μg/m3 (49) 37.3 μg/m3 (106) 106.0
 
July 21, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 54.0 μg/m3 (50) 38.7 μg/m3 (109) 109.0
 
July 21, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 44.0 μg/m3 (41) 30.9 μg/m3 (91) 91.0
 
July 21, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 38.0 μg/m3 (36) 27.1 μg/m3 (83) 83.0
 
July 21, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 37.0 μg/m3 (35) 26.4 μg/m3 (82) 82.0
 
July 21, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 36.0 μg/m3 (34) 25.6 μg/m3 (80) 80.0
 
July 21, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 35.0 μg/m3 (33) 22.6 μg/m3 (74) 74.0
 
July 21, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 39.0 μg/m3 (37) 25.9 μg/m3 (81) 81.0
 
July 21, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 34.0 μg/m3 (32) 22.7 μg/m3 (74) 74.0
 
July 21, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 33.0 μg/m3 (31) 21.5 μg/m3 (71) 71.0
 
July 21, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 31.0 μg/m3 (29) 21.4 μg/m3 (71) 71.0
 
July 21, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 32.0 μg/m3 (30) 21.2 μg/m3 (71) 71.0
 
July 21, 2021, noon N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A 34.0 μg/m3 (32) 25.5 μg/m3 (80) 80.0
 
July 21, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A 38.0 μg/m3 (36) 29.6 μg/m3 (88) 88.0
 
July 21, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 40.0 μg/m3 (38) 31.3 μg/m3 (92) 92.0
 
July 21, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A 42.0 μg/m3 (39) 32.1 μg/m3 (94) 94.0
 
July 21, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A 43.0 μg/m3 (40) 32.7 μg/m3 (95) 95.0
 
July 21, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A 44.0 μg/m3 (41) 33.8 μg/m3 (97) 97.0
 
July 21, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 44.0 μg/m3 (41) 33.7 μg/m3 (97) 97.0
 
July 21, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 43.0 μg/m3 (40) 33.0 μg/m3 (95) 95.0
 
July 21, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 43.0 μg/m3 (40) 32.7 μg/m3 (95) 95.0
 
July 21, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 58.0 μg/m3 (53) 44.1 μg/m3 (123) 123.0
 
July 21, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 94.0 μg/m3 (71) 70.6 μg/m3 (159) 159.0
 
July 21, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 116.0 μg/m3 (82) 88.3 μg/m3 (168) 168.0
 
July 21, 2021, midnight N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 111.0 μg/m3 (79) 83.2 μg/m3 (166) 166.0
 
July 20, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 82.0 μg/m3 (65) 61.8 μg/m3 (155) 155.0
 
July 20, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 57.0 μg/m3 (52) 42.8 μg/m3 (119) 119.0
 
July 20, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 42.0 μg/m3 (39) 30.1 μg/m3 (89) 89.0
 
July 20, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 35.0 μg/m3 (33) 23.0 μg/m3 (74) 74.0
 
July 20, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 32.0 μg/m3 (30) 19.5 μg/m3 (67) 67.0
 
July 20, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A 32.0 μg/m3 (30) 18.5 μg/m3 (65) 65.0
 
July 20, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 34.0 μg/m3 (32) 18.4 μg/m3 (65) 65.0
 
July 20, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 32.0 μg/m3 (30) 19.3 μg/m3 (67) 67.0
 
July 20, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 32.0 μg/m3 (30) 19.3 μg/m3 (67) 67.0
 
July 20, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 30.0 μg/m3 (28) 17.4 μg/m3 (63) 63.0
 
July 20, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A 29.0 μg/m3 (27) 16.5 μg/m3 (61) 61.0
 
July 20, 2021, noon N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A 26.0 μg/m3 (25) 15.1 μg/m3 (58) 58.0
 
July 20, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 24.0 μg/m3 (23) 15.3 μg/m3 (58) 58.0
 
July 20, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (22) 15.3 μg/m3 (58) 58.0
 
July 20, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 24.0 μg/m3 (23) 15.7 μg/m3 (59) 59.0
 
July 20, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 24.0 μg/m3 (23) 15.8 μg/m3 (59) 59.0
 
July 20, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 24.0 μg/m3 (23) 16.5 μg/m3 (61) 61.0
 
July 20, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 23.0 μg/m3 (22) 16.3 μg/m3 (60) 60.0
 
July 20, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 23.0 μg/m3 (22) 16.4 μg/m3 (61) 61.0
 
July 20, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) N/A 25.0 μg/m3 (24) 16.3 μg/m3 (60) 60.0
 
July 20, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A 23.0 μg/m3 (22) 16.5 μg/m3 (61) 61.0
 
July 20, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 24.0 μg/m3 (23) 15.9 μg/m3 (59) 59.0
 
July 20, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 23.0 μg/m3 (22) 15.5 μg/m3 (59) 59.0
 
July 20, 2021, midnight N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A 24.0 μg/m3 (23) 15.3 μg/m3 (58) 58.0
 
July 19, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (78) N/A 23.0 μg/m3 (22) 15.4 μg/m3 (58) 78.0
 
July 19, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A 24.0 μg/m3 (23) 15.2 μg/m3 (58) 71.0
 
July 19, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A 25.0 μg/m3 (24) 15.2 μg/m3 (58) 61.0
 
July 19, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 25.0 μg/m3 (24) 14.9 μg/m3 (57) 57.0
 
July 19, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A 23.0 μg/m3 (22) 14.6 μg/m3 (57) 57.0
 
July 19, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A 22.0 μg/m3 (21) 14.5 μg/m3 (57) 57.0
 
July 19, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 25.0 μg/m3 (24) 13.7 μg/m3 (55) 55.0
 
July 19, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 24.0 μg/m3 (23) 13.1 μg/m3 (54) 54.0
 
July 19, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 23.0 μg/m3 (22) 11.7 μg/m3 (49) 49.0
 
July 19, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 18.0 μg/m3 (17) 11.0 μg/m3 (46) 46.0
 
July 19, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) N/A 16.0 μg/m3 (15) 10.3 μg/m3 (43) 43.0
 
July 19, 2021, noon N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 16.0 μg/m3 (15) 10.2 μg/m3 (43) 43.0
 
July 19, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 17.0 μg/m3 (16) 10.0 μg/m3 (42) 42.0
 
July 19, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (17) 10.3 μg/m3 (43) 43.0
 
July 19, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 17.0 μg/m3 (16) 10.3 μg/m3 (43) 43.0
 
July 19, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 17.0 μg/m3 (16) 10.8 μg/m3 (46) 46.0
 
July 19, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 17.0 μg/m3 (16) 10.8 μg/m3 (46) 46.0
 
July 19, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 18.0 μg/m3 (17) 10.6 μg/m3 (45) 45.0
 
July 19, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 17.0 μg/m3 (16) 10.5 μg/m3 (44) 44.0
 
July 19, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 17.0 μg/m3 (16) 10.3 μg/m3 (43) 43.0
 
July 19, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 17.0 μg/m3 (16) 10.7 μg/m3 (45) 45.0
 
July 19, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A 16.0 μg/m3 (15) 10.6 μg/m3 (45) 45.0
 
July 19, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 16.0 μg/m3 (15) 10.4 μg/m3 (44) 44.0
 
July 19, 2021, midnight N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 15.0 μg/m3 (14) 10.0 μg/m3 (42) 42.0
 
July 18, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 14.0 μg/m3 (13) 10.1 μg/m3 (43) 43.0
 
July 18, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 15.0 μg/m3 (14) 10.7 μg/m3 (45) 45.0
 
July 18, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 16.0 μg/m3 (15) 10.7 μg/m3 (45) 45.0
 
July 18, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 17.0 μg/m3 (16) 10.5 μg/m3 (44) 44.0
 
July 18, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 15.0 μg/m3 (14) 10.6 μg/m3 (45) 45.0
 
July 18, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 17.0 μg/m3 (16) 11.7 μg/m3 (49) 49.0
 
July 18, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 18.0 μg/m3 (17) 12.8 μg/m3 (53) 53.0
 
July 18, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 19.0 μg/m3 (18) 13.5 μg/m3 (54) 54.0
 
July 18, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 19.0 μg/m3 (18) 12.8 μg/m3 (53) 53.0
 
July 18, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 20.0 μg/m3 (19) 14.7 μg/m3 (57) 57.0
 
July 18, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) N/A 23.0 μg/m3 (22) 16.2 μg/m3 (60) 60.0
 
July 18, 2021, noon N/A N/A N/A N/A N/A N/A 4.0 ppb (4) N/A 25.0 μg/m3 (24) 17.1 μg/m3 (62) 62.0
 
July 18, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 26.0 μg/m3 (25) 17.2 μg/m3 (62) 62.0
 
July 18, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (25) 17.5 μg/m3 (63) 63.0
 
July 18, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 26.0 μg/m3 (25) 17.6 μg/m3 (63) 63.0
 
July 18, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 27.0 μg/m3 (25) 18.3 μg/m3 (65) 65.0
 
July 18, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 27.0 μg/m3 (25) 18.3 μg/m3 (65) 65.0
 
July 18, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 28.0 μg/m3 (26) 17.9 μg/m3 (64) 64.0
 
July 18, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 27.0 μg/m3 (25) 17.7 μg/m3 (63) 63.0
 
July 18, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 26.0 μg/m3 (25) 16.8 μg/m3 (61) 61.0
 
July 18, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) N/A 25.0 μg/m3 (24) 16.3 μg/m3 (60) 60.0
 
July 18, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A 23.0 μg/m3 (22) 14.9 μg/m3 (57) 57.0
 
July 18, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 21.0 μg/m3 (20) 14.2 μg/m3 (56) 56.0
 
July 18, 2021, midnight N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 20.0 μg/m3 (19) 13.5 μg/m3 (54) 54.0
 
July 17, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 21.0 μg/m3 (20) 13.6 μg/m3 (55) 55.0
 
July 17, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 20.0 μg/m3 (19) 13.2 μg/m3 (54) 54.0
 
July 17, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 17.0 μg/m3 (16) 12.2 μg/m3 (52) 52.0
 
July 17, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 17.0 μg/m3 (16) 11.7 μg/m3 (49) 49.0
 
July 17, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 16.0 μg/m3 (15) 11.4 μg/m3 (48) 48.0
 
July 17, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 18.0 μg/m3 (17) 11.9 μg/m3 (50) 50.0
 
July 17, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 18.0 μg/m3 (17) 12.0 μg/m3 (50) 50.0
 
July 17, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 20.0 μg/m3 (19) 13.6 μg/m3 (55) 55.0
 
July 17, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 21.0 μg/m3 (20) 14.4 μg/m3 (56) 56.0
 
July 17, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 19.0 μg/m3 (18) 12.5 μg/m3 (52) 52.0
 
July 17, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A 17.0 μg/m3 (16) 10.9 μg/m3 (46) 46.0
 
July 17, 2021, noon N/A N/A N/A N/A N/A N/A 6.0 ppb (6) N/A 18.0 μg/m3 (17) 10.8 μg/m3 (46) 46.0
 
July 17, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 18.0 μg/m3 (17) 10.2 μg/m3 (43) 43.0
 
July 17, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (20) 10.7 μg/m3 (45) 45.0
 
July 17, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 19.0 μg/m3 (18) 10.2 μg/m3 (43) 43.0
 
July 17, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 19.0 μg/m3 (18) 10.1 μg/m3 (43) 43.0
 
July 17, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 19.0 μg/m3 (18) 10.0 μg/m3 (42) 42.0
 
July 17, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 18.0 μg/m3 (17) 8.7 μg/m3 (37) 37.0
 
July 17, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 17.0 μg/m3 (16) 8.4 μg/m3 (36) 36.0
 
July 17, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 17.0 μg/m3 (16) 8.8 μg/m3 (37) 37.0