ID: 2165

AQSQID: 460110003

Site Name: Research Farm

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

Updated: July 31, 2021, 5:56 a.m.

Location: Brookings (Wern Ave), SD

Reporting: True, Located: True

Current AQI: 120.0

Brookings (Wern Ave) SD, US: 44.348604, -96.807299

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 24, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 48.0 μg/m3 (45) 9.7 μg/m3 (41) 45.0
 
July 24, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 42.0 μg/m3 (39) 10.6 μg/m3 (45) 45.0
 
July 23, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 45.0 μg/m3 (42) 11.9 μg/m3 (50) 50.0
 
July 23, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 60.0 μg/m3 (54) 15.4 μg/m3 (58) 58.0
 
July 23, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 44.0 μg/m3 (41) 14.1 μg/m3 (56) 56.0
 
July 23, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 40.0 μg/m3 (38) 15.9 μg/m3 (59) 59.0
 
July 23, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (26) 15.9 μg/m3 (59) 59.0
 
July 23, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 40.0 μg/m3 (38) 16.1 μg/m3 (60) 60.0
 
July 23, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 49.0 μg/m3 (46) 20.1 μg/m3 (68) 68.0
 
July 23, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 96.0 μg/m3 (72) 22.4 μg/m3 (73) 73.0
 
July 23, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 59.0 μg/m3 (53) 20.5 μg/m3 (69) 69.0
 
July 23, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 72.0 μg/m3 (60) 21.7 μg/m3 (72) 72.0
 
July 23, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 49.0 μg/m3 (46) 23.9 μg/m3 (76) 76.0
 
July 23, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (32) 22.7 μg/m3 (74) 74.0
 
July 23, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 33.0 μg/m3 (31) 18.3 μg/m3 (65) 65.0
 
July 23, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 28.0 μg/m3 (26) 18.1 μg/m3 (64) 64.0
 
July 23, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (91) N/A 32.0 μg/m3 (30) 18.8 μg/m3 (66) 91.0
 
July 23, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 32.0 μg/m3 (30) 16.1 μg/m3 (60) 60.0
 
July 23, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 74.0 ppb (103) N/A 35.0 μg/m3 (33) 18.6 μg/m3 (65) 103.0
 
July 23, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 73.0 ppb (103) N/A 32.0 μg/m3 (30) 19.8 μg/m3 (68) 103.0
 
July 23, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A 34.0 μg/m3 (32) 16.4 μg/m3 (61) 71.0
 
July 23, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A 34.0 μg/m3 (32) 21.3 μg/m3 (71) 71.0
 
July 23, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 97.0 ppb (115) N/A 40.0 μg/m3 (38) 19.6 μg/m3 (67) 115.0
 
July 23, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 84.0 ppb (108) N/A 38.0 μg/m3 (36) 13.1 μg/m3 (54) 108.0
 
July 23, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (94) N/A 73.0 μg/m3 (60) 23.7 μg/m3 (76) 94.0
 
July 23, 2021, midnight N/A N/A N/A N/A N/A N/A 88.0 ppb (110) N/A 59.0 μg/m3 (53) 19.1 μg/m3 (66) 110.0
 
July 22, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 76.0 ppb (104) N/A 67.0 μg/m3 (57) 17.1 μg/m3 (62) 104.0
 
July 22, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 70.0 ppb (100) N/A 82.0 μg/m3 (65) 21.0 μg/m3 (70) 100.0
 
July 22, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 71.0 ppb (101) N/A 94.0 μg/m3 (71) 20.0 μg/m3 (68) 101.0
 
July 22, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 70.0 ppb (100) N/A 46.0 μg/m3 (43) 15.1 μg/m3 (58) 100.0
 
July 22, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 70.0 ppb (100) N/A 65.0 μg/m3 (56) 17.6 μg/m3 (63) 100.0
 
July 22, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (81) N/A 96.0 μg/m3 (72) 22.4 μg/m3 (73) 81.0
 
July 22, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (78) N/A 107.0 μg/m3 (77) 24.9 μg/m3 (78) 78.0
 
July 22, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A 123.0 μg/m3 (85) 32.2 μg/m3 (94) 94.0
 
July 22, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A 63.0 μg/m3 (55) 20.3 μg/m3 (69) 69.0
 
July 22, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A 60.0 μg/m3 (54) 25.6 μg/m3 (80) 80.0
 
July 22, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 109.0 μg/m3 (78) 27.6 μg/m3 (84) 84.0
 
July 22, 2021, noon N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 58.0 μg/m3 (53) 21.5 μg/m3 (71) 71.0
 
July 22, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 28.0 μg/m3 (26) 15.1 μg/m3 (58) 58.0
 
July 22, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 26.0 μg/m3 (25) 18.8 μg/m3 (66) 66.0
 
July 22, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 27.0 μg/m3 (25) 17.4 μg/m3 (63) 63.0
 
July 22, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 26.0 μg/m3 (25) 11.6 μg/m3 (49) 50.0
 
July 22, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 29.0 μg/m3 (27) 17.4 μg/m3 (63) 63.0
 
July 22, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 27.0 μg/m3 (25) 11.6 μg/m3 (49) 49.0
 
July 22, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A 30.0 μg/m3 (28) 10.6 μg/m3 (45) 68.0
 
July 22, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A 29.0 μg/m3 (27) 15.6 μg/m3 (59) 61.0
 
July 22, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A 34.0 μg/m3 (32) 12.1 μg/m3 (51) 58.0
 
July 22, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A 39.0 μg/m3 (37) 16.6 μg/m3 (61) 74.0
 
July 22, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (84) N/A 34.0 μg/m3 (32) 12.1 μg/m3 (51) 84.0
 
July 22, 2021, midnight N/A N/A N/A N/A N/A N/A 63.0 ppb (78) N/A 31.0 μg/m3 (29) 15.1 μg/m3 (58) 78.0
 
July 21, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (81) N/A 28.0 μg/m3 (26) 14.1 μg/m3 (56) 81.0
 
July 21, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (81) N/A 58.0 μg/m3 (53) 13.1 μg/m3 (54) 81.0
 
July 21, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (78) N/A 46.0 μg/m3 (43) 10.6 μg/m3 (45) 78.0
 
July 21, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (78) N/A 57.0 μg/m3 (52) 9.9 μg/m3 (42) 78.0
 
July 21, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (81) N/A 50.0 μg/m3 (47) 9.4 μg/m3 (40) 81.0
 
July 21, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A 110.0 μg/m3 (79) 15.1 μg/m3 (58) 79.0
 
July 21, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A 73.0 μg/m3 (60) 13.9 μg/m3 (55) 65.0
 
July 21, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A 81.0 μg/m3 (64) 15.1 μg/m3 (58) 64.0
 
July 21, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 80.0 μg/m3 (64) 18.3 μg/m3 (65) 65.0
 
July 21, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 45.0 μg/m3 (42) 10.6 μg/m3 (45) 45.0
 
July 21, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 76.0 μg/m3 (62) 12.6 μg/m3 (53) 62.0
 
July 21, 2021, noon N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 37.0 μg/m3 (35) 9.7 μg/m3 (41) 41.0
 
July 21, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 25.0 μg/m3 (24) 11.6 μg/m3 (49) 49.0
 
July 21, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 30.0 μg/m3 (28) 13.1 μg/m3 (54) 54.0
 
July 21, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 23.0 μg/m3 (22) 12.8 μg/m3 (53) 53.0
 
July 21, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 23.0 μg/m3 (22) 12.4 μg/m3 (52) 52.0
 
July 21, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 20.0 μg/m3 (19) 12.9 μg/m3 (53) 53.0
 
July 21, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 27.0 μg/m3 (25) 11.6 μg/m3 (49) 49.0
 
July 21, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 27.0 μg/m3 (25) 8.9 μg/m3 (38) 38.0
 
July 21, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 38.0 μg/m3 (36) 13.1 μg/m3 (54) 54.0
 
July 21, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 42.0 μg/m3 (39) 11.6 μg/m3 (49) 49.0
 
July 21, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A 86.0 μg/m3 (67) 18.8 μg/m3 (66) 67.0
 
July 21, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A 30.0 μg/m3 (28) 8.2 μg/m3 (35) 61.0
 
July 21, 2021, midnight N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A 25.0 μg/m3 (24) 9.9 μg/m3 (42) 71.0
 
July 20, 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) 10.6 μg/m3 (45) 78.0
 
July 20, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A 48.0 μg/m3 (45) 12.1 μg/m3 (51) 74.0
 
July 20, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (84) N/A 37.0 μg/m3 (35) 6.2 μg/m3 (26) 84.0
 
July 20, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (91) N/A 43.0 μg/m3 (40) 16.9 μg/m3 (62) 91.0
 
July 20, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 66.0 ppb (87) N/A 29.0 μg/m3 (27) 11.9 μg/m3 (50) 87.0
 
July 20, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (81) N/A 30.0 μg/m3 (28) 7.7 μg/m3 (33) 81.0
 
July 20, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (81) N/A 45.0 μg/m3 (42) 11.1 μg/m3 (47) 81.0
 
July 20, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A 55.0 μg/m3 (51) 7.5 μg/m3 (32) 71.0
 
July 20, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 44.0 μg/m3 (41) 18.8 μg/m3 (66) 66.0
 
July 20, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 60.0 μg/m3 (54) 10.6 μg/m3 (45) 54.0
 
July 20, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 70.0 μg/m3 (59) 18.6 μg/m3 (65) 65.0
 
July 20, 2021, noon N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A 31.0 μg/m3 (29) 14.4 μg/m3 (56) 56.0
 
July 20, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A 18.0 μg/m3 (17) 11.4 μg/m3 (48) 48.0
 
July 20, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) N/A 17.0 μg/m3 (16) 6.2 μg/m3 (26) 26.0
 
July 20, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A 22.0 μg/m3 (21) 7.2 μg/m3 (31) 31.0
 
July 20, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A 20.0 μg/m3 (19) 6.7 μg/m3 (28) 28.0
 
July 20, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A 22.0 μg/m3 (21) 9.4 μg/m3 (40) 40.0
 
July 20, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 24.0 μg/m3 (23) 8.9 μg/m3 (38) 38.0
 
July 20, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 26.0 μg/m3 (25) 10.1 μg/m3 (43) 43.0
 
July 20, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 66.0 μg/m3 (57) 15.9 μg/m3 (59) 59.0
 
July 20, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 48.0 μg/m3 (45) 16.6 μg/m3 (61) 61.0
 
July 20, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 70.0 μg/m3 (59) 15.1 μg/m3 (58) 59.0
 
July 20, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 68.0 μg/m3 (58) 12.1 μg/m3 (51) 58.0
 
July 20, 2021, midnight N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A 23.0 μg/m3 (22) 8.7 μg/m3 (37) 55.0
 
July 19, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A 34.0 μg/m3 (32) 18.3 μg/m3 (65) 71.0
 
July 19, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (84) N/A 25.0 μg/m3 (24) 12.4 μg/m3 (52) 84.0
 
July 19, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (81) N/A 26.0 μg/m3 (25) 16.6 μg/m3 (61) 81.0
 
July 19, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (78) N/A 28.0 μg/m3 (26) 9.9 μg/m3 (42) 78.0
 
July 19, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A 48.0 μg/m3 (45) 11.9 μg/m3 (50) 74.0
 
July 19, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A 43.0 μg/m3 (40) 12.1 μg/m3 (51) 71.0
 
July 19, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A 70.0 μg/m3 (59) N/A 61.0
 
July 19, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A 38.0 μg/m3 (36) 11.9 μg/m3 (50) 51.0
 
July 19, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 44.0 μg/m3 (41) 13.1 μg/m3 (54) 54.0
 
July 19, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 53.0 μg/m3 (50) 17.8 μg/m3 (63) 63.0
 
July 19, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 38.0 μg/m3 (36) 13.6 μg/m3 (55) 55.0
 
July 19, 2021, noon N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A 22.0 μg/m3 (21) 10.8 μg/m3 (46) 46.0
 
July 19, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A 13.0 μg/m3 (13) 8.9 μg/m3 (38) 38.0
 
July 19, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A 11.0 μg/m3 (11) 11.6 μg/m3 (49) 49.0
 
July 19, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A 17.0 μg/m3 (16) 11.6 μg/m3 (49) 49.0
 
July 19, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A 19.0 μg/m3 (18) 8.5 μg/m3 (36) 36.0
 
July 19, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A 19.0 μg/m3 (18) 8.4 μg/m3 (36) 36.0
 
July 19, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A 19.0 μg/m3 (18) 10.4 μg/m3 (44) 44.0
 
July 19, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 26.0 μg/m3 (25) 8.7 μg/m3 (37) 37.0
 
July 19, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 46.0 μg/m3 (43) 17.6 μg/m3 (63) 63.0
 
July 19, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 66.0 μg/m3 (57) 17.1 μg/m3 (62) 62.0
 
July 19, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 25.0 μg/m3 (24) 11.9 μg/m3 (50) 50.0
 
July 19, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 21.0 μg/m3 (20) 12.1 μg/m3 (51) 51.0
 
July 19, 2021, midnight N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A 20.0 μg/m3 (19) 10.6 μg/m3 (45) 58.0
 
July 18, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A 17.0 μg/m3 (16) 15.1 μg/m3 (58) 61.0
 
July 18, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A 19.0 μg/m3 (18) 10.4 μg/m3 (44) 61.0
 
July 18, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A 16.0 μg/m3 (15) 11.4 μg/m3 (48) 55.0
 
July 18, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A 18.0 μg/m3 (17) 12.6 μg/m3 (53) 65.0
 
July 18, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A 18.0 μg/m3 (17) 15.3 μg/m3 (58) 58.0
 
July 18, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A 15.0 μg/m3 (14) 8.2 μg/m3 (35) 50.0
 
July 18, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 16.0 μg/m3 (15) 16.4 μg/m3 (61) 61.0
 
July 18, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 21.0 μg/m3 (20) 13.1 μg/m3 (54) 54.0
 
July 18, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 21.0 μg/m3 (20) 18.8 μg/m3 (66) 66.0
 
July 18, 2021, 2 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) 14.6 μg/m3 (57) 57.0
 
July 18, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 22.0 μg/m3 (21) 10.1 μg/m3 (43) 43.0
 
July 18, 2021, noon N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 23.0 μg/m3 (22) 13.1 μg/m3 (54) 54.0
 
July 18, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 17.0 μg/m3 (16) 16.6 μg/m3 (61) 61.0
 
July 18, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 20.0 μg/m3 (19) 13.9 μg/m3 (55) 55.0
 
July 18, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 11.0 μg/m3 (11) 15.4 μg/m3 (58) 58.0
 
July 18, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 19.0 μg/m3 (18) 15.6 μg/m3 (59) 59.0
 
July 18, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 21.0 μg/m3 (20) 12.1 μg/m3 (51) 51.0
 
July 18, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 19.0 μg/m3 (18) 11.9 μg/m3 (50) 50.0
 
July 18, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 21.0 μg/m3 (20) 11.9 μg/m3 (50) 50.0
 
July 18, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 24.0 μg/m3 (23) 16.6 μg/m3 (61) 61.0
 
July 18, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 24.0 μg/m3 (23) 17.4 μg/m3 (63) 63.0
 
July 18, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 24.0 μg/m3 (23) 11.9 μg/m3 (50) 50.0
 
July 18, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 28.0 μg/m3 (26) 14.8 μg/m3 (57) 57.0
 
July 18, 2021, midnight N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A 21.0 μg/m3 (20) 18.6 μg/m3 (65) 65.0
 
July 17, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A 20.0 μg/m3 (19) 20.3 μg/m3 (69) 69.0
 
July 17, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A 27.0 μg/m3 (25) 13.9 μg/m3 (55) 71.0
 
July 17, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A 25.0 μg/m3 (24) 17.8 μg/m3 (63) 68.0
 
July 17, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A 19.0 μg/m3 (18) 16.6 μg/m3 (61) 68.0
 
July 17, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A 24.0 μg/m3 (23) 13.6 μg/m3 (55) 61.0
 
July 17, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A 26.0 μg/m3 (25) 12.4 μg/m3 (52) 58.0
 
July 17, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A 22.0 μg/m3 (21) 13.6 μg/m3 (55) 55.0
 
July 17, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 24.0 μg/m3 (23) 12.4 μg/m3 (52) 52.0
 
July 17, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 22.0 μg/m3 (21) 16.9 μg/m3 (62) 62.0
 
July 17, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 21.0 μg/m3 (20) 19.5 μg/m3 (67) 67.0
 
July 17, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 21.0 μg/m3 (20) 17.8 μg/m3 (63) 63.0
 
July 17, 2021, noon N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 14.0 μg/m3 (13) 11.6 μg/m3 (49) 49.0
 
July 17, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 18.0 μg/m3 (17) 9.9 μg/m3 (42) 42.0
 
July 17, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 12.0 μg/m3 (12) 10.9 μg/m3 (46) 46.0
 
July 17, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 14.0 μg/m3 (13) 15.1 μg/m3 (58) 58.0
 
July 17, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 17.0 μg/m3 (16) 14.1 μg/m3 (56) 56.0
 
July 17, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 14.0 μg/m3 (13) 11.9 μg/m3 (50) 50.0
 
July 17, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 20.0 μg/m3 (19) 19.3 μg/m3 (67) 67.0
 
July 17, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 23.0 μg/m3 (22) 11.1 μg/m3 (47) 47.0
 
July 17, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 23.0 μg/m3 (22) 13.9 μg/m3 (55) 55.0
 
July 17, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 25.0 μg/m3 (24) 17.8 μg/m3 (63) 63.0
 
July 17, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 38.0 μg/m3 (36) 24.4 μg/m3 (77) 77.0