ID: 2165

AQSQID: 460110003

Site Name: Research Farm

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

Updated: June 14, 2021, 8:50 p.m.

Location: Brookings (Wern Ave), SD

Reporting: True, Located: True

Current AQI: 102.0

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
June 14, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 72.0 ppb (102) N/A 10.0 μg/m3 (10) 0.4 μg/m3 (2) 102.0
 
June 14, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 71.0 ppb (101) N/A 10.0 μg/m3 (10) 4.3 μg/m3 (18) 101.0
 
June 14, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 69.0 ppb (97) N/A 10.0 μg/m3 (10) 6.3 μg/m3 (27) 97.0
 
June 14, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (84) N/A 15.0 μg/m3 (14) 4.5 μg/m3 (19) 84.0
 
June 14, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A 14.0 μg/m3 (13) 3.1 μg/m3 (13) 68.0
 
June 14, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A 15.0 μg/m3 (14) 4.6 μg/m3 (20) 51.0
 
June 14, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 14.0 μg/m3 (13) 6.2 μg/m3 (26) 45.0
 
June 14, 2021, noon N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 9.0 μg/m3 (9) 3.3 μg/m3 (14) 40.0
 
June 14, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 10.0 μg/m3 (10) 0.4 μg/m3 (2) 40.0
 
June 14, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 9.0 μg/m3 (9) 0.6 μg/m3 (3) 39.0
 
June 14, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 8.0 μg/m3 (8) 3.3 μg/m3 (14) 43.0
 
June 14, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 10.0 μg/m3 (10) 4.6 μg/m3 (20) 50.0
 
June 14, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A 8.0 μg/m3 (8) 2.1 μg/m3 (9) 51.0
 
June 14, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A 14.0 μg/m3 (13) 0.1 μg/m3 (1) 61.0
 
June 14, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A 18.0 μg/m3 (17) 0.0 μg/m3 (0) 68.0
 
June 14, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (78) N/A 24.0 μg/m3 (23) -0.7 μg/m3 (0) 78.0
 
June 14, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A 18.0 μg/m3 (17) -2.6 μg/m3 (0) 71.0
 
June 14, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 35.0 μg/m3 (33) 2.6 μg/m3 (11) 45.0
 
June 14, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (78) N/A 31.0 μg/m3 (29) 6.7 μg/m3 (28) 78.0
 
June 14, 2021, midnight N/A N/A N/A N/A N/A N/A 76.0 ppb (104) N/A 24.0 μg/m3 (23) 4.3 μg/m3 (18) 104.0
 
June 13, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 74.0 ppb (103) N/A 57.0 μg/m3 (52) 4.0 μg/m3 (17) 103.0
 
June 13, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 69.0 ppb (97) N/A 33.0 μg/m3 (31) 5.3 μg/m3 (23) 97.0
 
June 13, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 70.0 ppb (100) N/A 27.0 μg/m3 (25) 0.6 μg/m3 (3) 100.0
 
June 13, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 73.0 ppb (103) N/A 20.0 μg/m3 (19) 2.6 μg/m3 (11) 103.0
 
June 13, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 75.0 ppb (104) N/A 33.0 μg/m3 (31) 4.5 μg/m3 (19) 104.0
 
June 13, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 75.0 ppb (104) N/A 41.0 μg/m3 (38) 4.5 μg/m3 (19) 104.0
 
June 13, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 73.0 ppb (103) N/A 31.0 μg/m3 (29) 1.6 μg/m3 (7) 103.0
 
June 13, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (94) N/A 38.0 μg/m3 (36) 6.0 μg/m3 (25) 94.0
 
June 13, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (78) N/A 32.0 μg/m3 (30) 11.4 μg/m3 (48) 78.0
 
June 13, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A 27.0 μg/m3 (25) 5.7 μg/m3 (24) 58.0
 
June 13, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 30.0 μg/m3 (28) 3.6 μg/m3 (16) 43.0
 
June 13, 2021, noon N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 13.0 μg/m3 (13) 3.8 μg/m3 (16) 39.0
 
June 13, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 14.0 μg/m3 (13) 1.3 μg/m3 (6) 26.0
 
June 13, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 10.0 μg/m3 (10) 4.5 μg/m3 (19) 23.0
 
June 13, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 12.0 μg/m3 (12) 2.1 μg/m3 (9) 20.0
 
June 13, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 17.0 μg/m3 (16) 3.3 μg/m3 (14) 20.0
 
June 13, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 15.0 μg/m3 (14) 8.0 μg/m3 (34) 34.0
 
June 13, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 24.0 μg/m3 (23) 3.6 μg/m3 (16) 23.0
 
June 13, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 27.0 μg/m3 (25) 2.1 μg/m3 (9) 25.0
 
June 13, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 28.0 μg/m3 (26) 5.0 μg/m3 (21) 27.0
 
June 13, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 86.0 μg/m3 (67) 4.8 μg/m3 (20) 67.0
 
June 13, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 20.0 μg/m3 (19) -0.2 μg/m3 (0) 41.0
 
June 13, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 46.0 μg/m3 (43) 2.3 μg/m3 (10) 50.0
 
June 13, 2021, midnight N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A 6.0 μg/m3 (6) 2.1 μg/m3 (9) 71.0
 
June 12, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 66.0 ppb (87) N/A 16.0 μg/m3 (15) 0.0 μg/m3 (0) 87.0
 
June 12, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (81) N/A 20.0 μg/m3 (19) 1.8 μg/m3 (8) 81.0
 
June 12, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A 19.0 μg/m3 (18) 0.0 μg/m3 (0) 74.0
 
June 12, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A 18.0 μg/m3 (17) -0.3 μg/m3 (0) 71.0
 
June 12, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A 26.0 μg/m3 (25) 1.3 μg/m3 (6) 65.0
 
June 12, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A 13.0 μg/m3 (13) 1.8 μg/m3 (8) 58.0
 
June 12, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A 14.0 μg/m3 (13) 3.8 μg/m3 (16) 51.0
 
June 12, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 19.0 μg/m3 (18) 6.2 μg/m3 (26) 50.0
 
June 12, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 15.0 μg/m3 (14) 4.8 μg/m3 (20) 46.0
 
June 12, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 18.0 μg/m3 (17) 4.3 μg/m3 (18) 32.0
 
June 12, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 8.0 μg/m3 (8) 4.8 μg/m3 (20) 26.0
 
June 12, 2021, noon N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A 6.0 μg/m3 (6) 1.6 μg/m3 (7) 15.0
 
June 12, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A 9.0 μg/m3 (9) 2.3 μg/m3 (10) 10.0
 
June 12, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A 9.0 μg/m3 (9) 1.3 μg/m3 (6) 9.0
 
June 12, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A 10.0 μg/m3 (10) -1.0 μg/m3 (0) 11.0
 
June 12, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A 10.0 μg/m3 (10) 0.6 μg/m3 (3) 13.0
 
June 12, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A 11.0 μg/m3 (11) 2.3 μg/m3 (10) 15.0
 
June 12, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A 24.0 μg/m3 (23) 4.3 μg/m3 (18) 23.0
 
June 12, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 38.0 μg/m3 (36) 6.0 μg/m3 (25) 36.0
 
June 12, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 28.0 μg/m3 (26) 2.6 μg/m3 (11) 26.0
 
June 12, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 21.0 μg/m3 (20) -2.4 μg/m3 (0) 38.0
 
June 12, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 14.0 μg/m3 (13) -3.6 μg/m3 (0) 42.0
 
June 12, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 17.0 μg/m3 (16) 0.1 μg/m3 (1) 49.0
 
June 12, 2021, midnight N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A 25.0 μg/m3 (24) 1.8 μg/m3 (8) 65.0
 
June 11, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A 32.0 μg/m3 (30) 0.4 μg/m3 (2) 68.0
 
June 11, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A 38.0 μg/m3 (36) 0.0 μg/m3 (0) 71.0
 
June 11, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (78) N/A 34.0 μg/m3 (32) 0.6 μg/m3 (3) 78.0
 
June 11, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 66.0 ppb (87) N/A 16.0 μg/m3 (15) 1.3 μg/m3 (6) 87.0
 
June 11, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A 14.0 μg/m3 (13) 1.6 μg/m3 (7) 74.0
 
June 11, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 15.0 μg/m3 (14) 5.3 μg/m3 (23) 48.0
 
June 11, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 12.0 μg/m3 (12) 4.0 μg/m3 (17) 41.0
 
June 11, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 7.0 μg/m3 (7) 4.1 μg/m3 (18) 44.0
 
June 11, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 8.0 μg/m3 (8) 4.5 μg/m3 (19) 46.0
 
June 11, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 7.0 μg/m3 (7) 2.8 μg/m3 (12) 45.0
 
June 11, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 8.0 μg/m3 (8) 2.8 μg/m3 (12) 43.0
 
June 11, 2021, noon N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 22.0 μg/m3 (21) 3.3 μg/m3 (14) 44.0
 
June 11, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A 294.0 μg/m3 (171) 1.3 μg/m3 (6) 171.0
 
June 11, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 25.0 μg/m3 (24) 6.7 μg/m3 (28) 43.0
 
June 11, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 40.0 μg/m3 (38) 5.8 μg/m3 (25) 43.0
 
June 11, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 31.0 μg/m3 (29) 5.8 μg/m3 (25) 44.0
 
June 11, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A 39.0 μg/m3 (37) 9.0 μg/m3 (38) 50.0
 
June 11, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A 38.0 μg/m3 (36) 13.9 μg/m3 (55) 61.0
 
June 11, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A 36.0 μg/m3 (34) 7.0 μg/m3 (30) 74.0
 
June 11, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A 53.0 μg/m3 (50) 11.9 μg/m3 (50) 74.0
 
June 11, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A 35.0 μg/m3 (33) 9.9 μg/m3 (42) 74.0
 
June 11, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (84) N/A 36.0 μg/m3 (34) 5.5 μg/m3 (23) 84.0
 
June 11, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (94) N/A 35.0 μg/m3 (33) 6.7 μg/m3 (28) 94.0
 
June 11, 2021, midnight N/A N/A N/A N/A N/A N/A 70.0 ppb (100) N/A 65.0 μg/m3 (56) 9.5 μg/m3 (40) 100.0
 
June 10, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 72.0 ppb (102) N/A 57.0 μg/m3 (52) 8.2 μg/m3 (35) 102.0
 
June 10, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 74.0 ppb (103) N/A 72.0 μg/m3 (60) 8.7 μg/m3 (37) 103.0
 
June 10, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 71.0 ppb (101) N/A 42.0 μg/m3 (39) 6.7 μg/m3 (28) 101.0
 
June 10, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 69.0 ppb (97) N/A 68.0 μg/m3 (58) 3.8 μg/m3 (16) 97.0
 
June 10, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 69.0 ppb (97) N/A 59.0 μg/m3 (53) 6.7 μg/m3 (28) 97.0
 
June 10, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (91) N/A 107.0 μg/m3 (77) 7.2 μg/m3 (31) 91.0
 
June 10, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (91) N/A 134.0 μg/m3 (91) 12.4 μg/m3 (52) 91.0
 
June 10, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 117.0 μg/m3 (82) 15.1 μg/m3 (58) 82.0
 
June 10, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 106.0 μg/m3 (77) 8.2 μg/m3 (35) 77.0
 
June 10, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 83.0 μg/m3 (65) 13.9 μg/m3 (55) 65.0
 
June 10, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 111.0 μg/m3 (79) 11.6 μg/m3 (49) 79.0
 
June 10, 2021, noon N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 47.0 μg/m3 (44) 13.9 μg/m3 (55) 55.0
 
June 10, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 28.0 μg/m3 (26) 7.4 μg/m3 (31) 31.0
 
June 10, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 31.0 μg/m3 (29) 7.5 μg/m3 (32) 33.0
 
June 10, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 26.0 μg/m3 (25) 7.2 μg/m3 (31) 35.0
 
June 10, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 66.0 μg/m3 (57) 9.0 μg/m3 (38) 57.0
 
June 10, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 77.0 μg/m3 (62) 12.1 μg/m3 (51) 62.0
 
June 10, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 35.0 μg/m3 (33) 16.4 μg/m3 (61) 61.0
 
June 10, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 41.0 μg/m3 (38) 6.7 μg/m3 (28) 40.0
 
June 10, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 9.7 μg/m3 (41) 41.0
 
June 10, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 158.0 μg/m3 (103) 11.6 μg/m3 (49) 103.0
 
June 10, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A 26.3 μg/m3 (81) 81.0
 
June 10, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 53.4 μg/m3 (146) 146.0
 
June 10, 2021, midnight N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A 85.0 μg/m3 (66) 27.1 μg/m3 (83) 83.0
 
June 9, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A 67.0 μg/m3 (57) 8.2 μg/m3 (35) 68.0
 
June 9, 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) 7.2 μg/m3 (31) 68.0
 
June 9, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A 64.0 μg/m3 (56) 5.8 μg/m3 (25) 58.0
 
June 9, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A 87.0 μg/m3 (67) 7.2 μg/m3 (31) 67.0
 
June 9, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A 117.0 μg/m3 (82) 9.9 μg/m3 (42) 82.0
 
June 9, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A 69.0 μg/m3 (58) 12.6 μg/m3 (53) 68.0
 
June 9, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A 36.0 μg/m3 (34) 11.4 μg/m3 (48) 51.0
 
June 9, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A 43.0 μg/m3 (40) 4.1 μg/m3 (18) 50.0
 
June 9, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 41.0 μg/m3 (38) 5.8 μg/m3 (25) 47.0
 
June 9, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 42.0 μg/m3 (39) 6.0 μg/m3 (25) 41.0
 
June 9, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 46.0 μg/m3 (43) 3.8 μg/m3 (16) 43.0
 
June 9, 2021, noon N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 28.0 μg/m3 (26) 5.3 μg/m3 (23) 26.0
 
June 9, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A 24.0 μg/m3 (23) 2.5 μg/m3 (11) 23.0
 
June 9, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A 30.0 μg/m3 (28) 4.3 μg/m3 (18) 28.0
 
June 9, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 30.0 μg/m3 (28) 6.7 μg/m3 (28) 28.0
 
June 9, 2021, 8 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) 2.8 μg/m3 (12) 27.0
 
June 9, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 31.0 μg/m3 (29) 4.5 μg/m3 (19) 34.0
 
June 9, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 29.0 μg/m3 (27) 6.5 μg/m3 (28) 33.0
 
June 9, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 40.6 μg/m3 (38) 5.8 μg/m3 (25) 38.0
 
June 9, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 41.3 μg/m3 (39) 7.5 μg/m3 (32) 39.0
 
June 9, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 43.6 μg/m3 (41) 6.5 μg/m3 (28) 41.0
 
June 9, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 30.2 μg/m3 (28) 5.3 μg/m3 (23) 39.0
 
June 9, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A 31.9 μg/m3 (30) 4.6 μg/m3 (20) 58.0
 
June 9, 2021, midnight N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A 43.6 μg/m3 (41) 2.6 μg/m3 (11) 74.0
 
June 8, 2021, 11 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) 3.3 μg/m3 (14) 71.0
 
June 8, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A 33.1 μg/m3 (31) 3.6 μg/m3 (16) 74.0
 
June 8, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A 36.7 μg/m3 (34) 4.8 μg/m3 (20) 71.0
 
June 8, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A 30.2 μg/m3 (28) 2.3 μg/m3 (10) 71.0
 
June 8, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A 28.0 μg/m3 (26) 2.8 μg/m3 (12) 68.0
 
June 8, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A 29.2 μg/m3 (28) 2.6 μg/m3 (11) 65.0
 
June 8, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A 27.7 μg/m3 (26) 1.3 μg/m3 (6) 58.0
 
June 8, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A 28.0 μg/m3 (26) 1.9 μg/m3 (8) 51.0
 
June 8, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 34.5 μg/m3 (32) 3.8 μg/m3 (16) 49.0
 
June 8, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 46.7 μg/m3 (44) 5.8 μg/m3 (25) 44.0
 
June 8, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 30.5 μg/m3 (29) 5.3 μg/m3 (23) 35.0
 
June 8, 2021, noon N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 30.7 μg/m3 (29) 5.8 μg/m3 (25) 30.0
 
June 8, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 25.3 μg/m3 (24) 5.3 μg/m3 (23) 24.0
 
June 8, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 21.6 μg/m3 (20) 2.1 μg/m3 (9) 25.0
 
June 8, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 18.0 μg/m3 (17) 2.8 μg/m3 (12) 28.0
 
June 8, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 25.5 μg/m3 (24) 5.0 μg/m3 (21) 31.0
 
June 8, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 30.5 μg/m3 (29) 5.8 μg/m3 (25) 38.0
 
June 8, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 33.9 μg/m3 (32) 5.3 μg/m3 (23) 42.0
 
June 8, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 30.4 μg/m3 (29) 6.5 μg/m3 (28) 45.0
 
June 8, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 29.0 μg/m3 (27) 3.8 μg/m3 (16) 48.0
 
June 8, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 38.9 μg/m3 (37) 4.3 μg/m3 (18) 50.0
 
June 8, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A 26.0 μg/m3 (25) 4.8 μg/m3 (20) 51.0
 
June 8, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A 56.1 μg/m3 (52) 7.7 μg/m3 (33) 74.0
 
June 8, 2021, midnight N/A N/A N/A N/A N/A N/A 67.0 ppb (91) N/A 118.0 μg/m3 (83) 8.5 μg/m3 (36) 91.0
 
June 7, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (91) N/A 129.0 μg/m3 (88) 17.9 μg/m3 (64) 91.0
 
June 7, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (94) N/A 78.4 μg/m3 (63) 19.3 μg/m3 (67) 94.0
 
June 7, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (94) N/A 109.5 μg/m3 (78) 12.2 μg/m3 (52) 94.0
 
June 7, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 66.0 ppb (87) N/A 76.7 μg/m3 (62) 14.7 μg/m3 (57) 87.0