ID: 2165

AQSQID: 460110003

Site Name: Research Farm

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

Updated: Sept. 26, 2020, 1:40 a.m.

Location: Brookings (Wern Ave), SD

Reporting: True, Located: True

Current AQI: 130.0

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
Sept. 26, 2020, midnight N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 215.6 μg/m3 (130) N/A 130.0
 
Sept. 25, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 235.6 μg/m3 (140) 18.4 μg/m3 (64) 140.0
 
Sept. 25, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 141.0 μg/m3 (93) 9.5 μg/m3 (40) 93.0
 
Sept. 25, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 65.6 μg/m3 (55) 15.4 μg/m3 (57) 57.0
 
Sept. 25, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 69.9 μg/m3 (57) 5.8 μg/m3 (24) 57.0
 
Sept. 25, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 114.8 μg/m3 (80) 10.9 μg/m3 (45) 80.0
 
Sept. 25, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 88.2 μg/m3 (67) 19.2 μg/m3 (65) 67.0
 
Sept. 25, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 92.0 μg/m3 (68) 14.2 μg/m3 (55) 68.0
 
Sept. 25, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 79.1 μg/m3 (62) 13.9 μg/m3 (54) 62.0
 
Sept. 25, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 51.4 μg/m3 (47) 20.8 μg/m3 (69) 69.0
 
Sept. 25, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 70.8 μg/m3 (58) 13.7 μg/m3 (54) 58.0
 
Sept. 25, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 41.9 μg/m3 (38) 13.2 μg/m3 (53) 53.0
 
Sept. 25, 2020, noon N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 28.3 μg/m3 (26) 11.7 μg/m3 (49) 49.0
 
Sept. 25, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 28.2 μg/m3 (26) 14.9 μg/m3 (56) 56.0
 
Sept. 25, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 30.0 μg/m3 (27) 8.5 μg/m3 (35) 35.0
 
Sept. 25, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 27.5 μg/m3 (25) 9.5 μg/m3 (40) 40.0
 
Sept. 25, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 27.5 μg/m3 (25) 10.2 μg/m3 (42) 42.0
 
Sept. 25, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 23.3 μg/m3 (21) 8.0 μg/m3 (33) 33.0
 
Sept. 25, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 26.3 μg/m3 (24) 9.2 μg/m3 (38) 38.0
 
Sept. 25, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 34.6 μg/m3 (31) 7.8 μg/m3 (32) 33.0
 
Sept. 25, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 35.6 μg/m3 (32) 6.6 μg/m3 (28) 32.0
 
Sept. 25, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 42.6 μg/m3 (39) 9.2 μg/m3 (38) 39.0
 
Sept. 25, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 49.7 μg/m3 (45) 10.7 μg/m3 (45) 45.0
 
Sept. 25, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 56.8 μg/m3 (51) 8.2 μg/m3 (34) 51.0
 
Sept. 25, 2020, midnight N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 40.2 μg/m3 (37) 8.3 μg/m3 (35) 37.0
 
Sept. 24, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 36.3 μg/m3 (33) 3.9 μg/m3 (16) 40.0
 
Sept. 24, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A 31.2 μg/m3 (28) 3.9 μg/m3 (16) 42.0
 
Sept. 24, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A 35.6 μg/m3 (32) 6.8 μg/m3 (28) 42.0
 
Sept. 24, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A 36.5 μg/m3 (33) 8.8 μg/m3 (37) 42.0
 
Sept. 24, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A 31.7 μg/m3 (29) 4.9 μg/m3 (20) 41.0
 
Sept. 24, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 21.7 μg/m3 (20) 2.9 μg/m3 (12) 39.0
 
Sept. 24, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 25.2 μg/m3 (23) 3.9 μg/m3 (16) 40.0
 
Sept. 24, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 19.0 μg/m3 (17) 7.8 μg/m3 (32) 35.0
 
Sept. 24, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 31.6 μg/m3 (29) 12.0 μg/m3 (50) 50.0
 
Sept. 24, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 29.3 μg/m3 (27) 4.9 μg/m3 (20) 27.0
 
Sept. 24, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 37.2 μg/m3 (34) 5.6 μg/m3 (23) 34.0
 
Sept. 24, 2020, noon N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 36.0 μg/m3 (33) 8.7 μg/m3 (36) 36.0
 
Sept. 24, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 34.1 μg/m3 (31) 9.0 μg/m3 (38) 38.0
 
Sept. 24, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 36.0 μg/m3 (33) 11.5 μg/m3 (48) 48.0
 
Sept. 24, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 44.0 μg/m3 (40) 14.7 μg/m3 (56) 56.0
 
Sept. 24, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 45.0 μg/m3 (41) 12.0 μg/m3 (50) 50.0
 
Sept. 24, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 59.0 μg/m3 (52) 13.9 μg/m3 (54) 54.0
 
Sept. 24, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 69.0 μg/m3 (57) 11.2 μg/m3 (47) 57.0
 
Sept. 24, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 12.7 μg/m3 (51) 51.0
 
Sept. 24, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 59.0 μg/m3 (52) 24.7 μg/m3 (77) 77.0
 
Sept. 24, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 95.0 μg/m3 (70) 11.5 μg/m3 (48) 70.0
 
Sept. 24, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 143.0 μg/m3 (94) 18.9 μg/m3 (65) 94.0
 
Sept. 24, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 152.0 μg/m3 (98) 25.6 μg/m3 (79) 98.0
 
Sept. 24, 2020, midnight N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 173.0 μg/m3 (109) 28.1 μg/m3 (84) 109.0
 
Sept. 23, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 115.0 μg/m3 (80) 32.2 μg/m3 (93) 93.0
 
Sept. 23, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A 71.0 μg/m3 (58) 15.2 μg/m3 (57) 58.0
 
Sept. 23, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A 58.0 μg/m3 (52) 11.0 μg/m3 (46) 52.0
 
Sept. 23, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A 58.0 μg/m3 (52) 11.7 μg/m3 (49) 52.0
 
Sept. 23, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A 64.0 μg/m3 (54) 10.2 μg/m3 (42) 54.0
 
Sept. 23, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A 62.0 μg/m3 (54) 12.0 μg/m3 (50) 54.0
 
Sept. 23, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 52.0 μg/m3 (47) 10.5 μg/m3 (44) 47.0
 
Sept. 23, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 44.0 μg/m3 (40) 12.2 μg/m3 (50) 50.0
 
Sept. 23, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (29) N/A 29.0
 
Sept. 23, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 44.0 μg/m3 (40) 13.7 μg/m3 (54) 54.0
 
Sept. 23, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 35.0 μg/m3 (32) 11.7 μg/m3 (49) 49.0
 
Sept. 23, 2020, noon N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 34.0 μg/m3 (31) 12.5 μg/m3 (51) 51.0
 
Sept. 23, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 33.0 μg/m3 (30) 11.7 μg/m3 (49) 49.0
 
Sept. 23, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 36.0 μg/m3 (33) 9.7 μg/m3 (40) 40.0
 
Sept. 23, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 39.0 μg/m3 (35) 9.5 μg/m3 (40) 40.0
 
Sept. 23, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 43.0 μg/m3 (39) 8.5 μg/m3 (35) 39.0
 
Sept. 23, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 48.0 μg/m3 (44) 8.7 μg/m3 (36) 44.0
 
Sept. 23, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 54.0 μg/m3 (49) 12.9 μg/m3 (52) 52.0
 
Sept. 23, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 55.0 μg/m3 (50) 13.9 μg/m3 (54) 54.0
 
Sept. 23, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 61.0 μg/m3 (53) 15.7 μg/m3 (58) 58.0
 
Sept. 23, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 19.4 μg/m3 (66) 66.0
 
Sept. 23, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 22.0 μg/m3 (71) 71.0
 
Sept. 23, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 284.0 μg/m3 (164) 17.9 μg/m3 (63) 164.0
 
Sept. 23, 2020, midnight N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 266.0 μg/m3 (156) 42.4 μg/m3 (117) 156.0
 
Sept. 22, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A 207.0 μg/m3 (126) 21.0 μg/m3 (69) 126.0
 
Sept. 22, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (50) N/A 142.0 μg/m3 (94) 32.2 μg/m3 (93) 94.0
 
Sept. 22, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (49) N/A 73.0 μg/m3 (59) 23.2 μg/m3 (74) 74.0
 
Sept. 22, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (47) N/A 48.0 μg/m3 (44) 18.2 μg/m3 (63) 63.0
 
Sept. 22, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A 43.0 μg/m3 (39) 12.2 μg/m3 (50) 50.0
 
Sept. 22, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 47.0 μg/m3 (43) 10.7 μg/m3 (45) 45.0
 
Sept. 22, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 36.0 μg/m3 (33) 8.3 μg/m3 (35) 36.0
 
Sept. 22, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 36.0 μg/m3 (33) 12.4 μg/m3 (51) 51.0
 
Sept. 22, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 34.0 μg/m3 (31) 19.4 μg/m3 (66) 66.0
 
Sept. 22, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 35.0 μg/m3 (32) 17.2 μg/m3 (61) 61.0
 
Sept. 22, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 33.0 μg/m3 (30) 11.4 μg/m3 (48) 48.0
 
Sept. 22, 2020, noon N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 34.0 μg/m3 (31) 10.0 μg/m3 (42) 42.0
 
Sept. 22, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 37.0 μg/m3 (34) 10.7 μg/m3 (45) 45.0
 
Sept. 22, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 39.0 μg/m3 (35) 6.8 μg/m3 (28) 35.0
 
Sept. 22, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 41.0 μg/m3 (37) 5.1 μg/m3 (21) 37.0
 
Sept. 22, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 49.0 μg/m3 (45) 14.9 μg/m3 (56) 56.0
 
Sept. 22, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 53.0 μg/m3 (48) 16.7 μg/m3 (60) 60.0
 
Sept. 22, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 52.0 μg/m3 (47) 15.2 μg/m3 (57) 57.0
 
Sept. 22, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 57.0 μg/m3 (51) 17.7 μg/m3 (62) 62.0
 
Sept. 22, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 62.0 μg/m3 (54) 16.2 μg/m3 (59) 59.0
 
Sept. 22, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 84.0 μg/m3 (64) 21.0 μg/m3 (69) 69.0
 
Sept. 22, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 101.0 μg/m3 (73) 24.2 μg/m3 (76) 76.0
 
Sept. 22, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 82.0 μg/m3 (64) 24.2 μg/m3 (76) 76.0
 
Sept. 22, 2020, midnight N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 53.0 μg/m3 (48) 19.8 μg/m3 (67) 67.0
 
Sept. 21, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 57.0 μg/m3 (51) 14.7 μg/m3 (56) 56.0
 
Sept. 21, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A 57.0 μg/m3 (51) 19.4 μg/m3 (66) 66.0
 
Sept. 21, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A 60.0 μg/m3 (52) 17.4 μg/m3 (61) 61.0
 
Sept. 21, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A 88.0 μg/m3 (66) 22.5 μg/m3 (72) 72.0
 
Sept. 21, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A 53.0 μg/m3 (48) 21.3 μg/m3 (70) 70.0
 
Sept. 21, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 74.0 μg/m3 (60) 15.4 μg/m3 (57) 60.0
 
Sept. 21, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 59.0 μg/m3 (52) 19.9 μg/m3 (67) 67.0
 
Sept. 21, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 112.0 μg/m3 (78) 22.7 μg/m3 (73) 78.0
 
Sept. 21, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 60.0 μg/m3 (52) 30.8 μg/m3 (90) 90.0
 
Sept. 21, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 26.0 μg/m3 (24) 17.7 μg/m3 (62) 62.0
 
Sept. 21, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 23.0 μg/m3 (21) 14.7 μg/m3 (56) 56.0
 
Sept. 21, 2020, noon N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 27.0 μg/m3 (25) 10.0 μg/m3 (42) 42.0
 
Sept. 21, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 24.0 μg/m3 (22) 14.5 μg/m3 (55) 55.0
 
Sept. 21, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 25.0 μg/m3 (23) 12.0 μg/m3 (50) 50.0
 
Sept. 21, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 30.0 μg/m3 (27) 15.2 μg/m3 (57) 57.0
 
Sept. 21, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 31.0 μg/m3 (28) 11.5 μg/m3 (48) 48.0
 
Sept. 21, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 38.0 μg/m3 (35) 19.8 μg/m3 (67) 67.0
 
Sept. 21, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 45.0 μg/m3 (41) 22.3 μg/m3 (72) 72.0
 
Sept. 21, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 45.0 μg/m3 (41) 19.8 μg/m3 (67) 67.0
 
Sept. 21, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 54.0 μg/m3 (49) 21.5 μg/m3 (70) 70.0
 
Sept. 21, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 59.0 μg/m3 (52) 23.7 μg/m3 (75) 75.0
 
Sept. 21, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 58.0 μg/m3 (52) 25.2 μg/m3 (78) 78.0
 
Sept. 21, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 92.0 μg/m3 (68) 26.2 μg/m3 (80) 80.0
 
Sept. 21, 2020, midnight N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 128.0 μg/m3 (86) 27.4 μg/m3 (83) 86.0
 
Sept. 20, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 107.0 μg/m3 (76) 22.3 μg/m3 (72) 76.0
 
Sept. 20, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 74.0 μg/m3 (60) 22.0 μg/m3 (71) 71.0
 
Sept. 20, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 64.0 μg/m3 (54) 16.4 μg/m3 (59) 59.0
 
Sept. 20, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 89.0 μg/m3 (67) 19.7 μg/m3 (66) 67.0
 
Sept. 20, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 98.0 μg/m3 (72) 17.7 μg/m3 (62) 72.0
 
Sept. 20, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 90.0 μg/m3 (68) 12.4 μg/m3 (51) 68.0
 
Sept. 20, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 84.0 μg/m3 (64) 19.8 μg/m3 (67) 67.0
 
Sept. 20, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 52.0 μg/m3 (47) 21.3 μg/m3 (70) 70.0
 
Sept. 20, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 33.0 μg/m3 (30) 20.1 μg/m3 (67) 67.0
 
Sept. 20, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 19.0 μg/m3 (17) 8.7 μg/m3 (36) 36.0
 
Sept. 20, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 22.0 μg/m3 (20) 11.2 μg/m3 (47) 47.0
 
Sept. 20, 2020, noon N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 22.0 μg/m3 (20) 8.2 μg/m3 (34) 34.0
 
Sept. 20, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 15.0 μg/m3 (14) 7.5 μg/m3 (31) 31.0
 
Sept. 20, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 19.0 μg/m3 (17) 8.5 μg/m3 (35) 35.0
 
Sept. 20, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 21.0 μg/m3 (19) 9.2 μg/m3 (38) 38.0
 
Sept. 20, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 25.0 μg/m3 (23) 7.5 μg/m3 (31) 31.0
 
Sept. 20, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 32.0 μg/m3 (29) 8.9 μg/m3 (37) 37.0
 
Sept. 20, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 38.0 μg/m3 (35) 6.3 μg/m3 (26) 35.0
 
Sept. 20, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 38.0 μg/m3 (35) 3.6 μg/m3 (15) 35.0
 
Sept. 20, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 43.0 μg/m3 (39) 5.3 μg/m3 (22) 39.0
 
Sept. 20, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 49.0 μg/m3 (45) 10.0 μg/m3 (42) 45.0
 
Sept. 20, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 61.0 μg/m3 (53) 13.4 μg/m3 (53) 53.0
 
Sept. 20, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 62.0 μg/m3 (54) 17.9 μg/m3 (63) 63.0
 
Sept. 20, 2020, midnight N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 65.0 μg/m3 (55) 15.4 μg/m3 (57) 57.0
 
Sept. 19, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 71.0 μg/m3 (58) 10.2 μg/m3 (42) 58.0
 
Sept. 19, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 72.0 μg/m3 (58) 9.5 μg/m3 (40) 58.0
 
Sept. 19, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 64.0 μg/m3 (54) 8.5 μg/m3 (35) 54.0
 
Sept. 19, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 79.0 μg/m3 (62) 11.7 μg/m3 (49) 62.0
 
Sept. 19, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 78.0 μg/m3 (62) 11.9 μg/m3 (50) 62.0
 
Sept. 19, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 58.0 μg/m3 (52) 12.7 μg/m3 (51) 52.0
 
Sept. 19, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 41.0 μg/m3 (37) 9.0 μg/m3 (38) 38.0
 
Sept. 19, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 31.0 μg/m3 (28) 13.2 μg/m3 (53) 53.0
 
Sept. 19, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 24.0 μg/m3 (22) 6.8 μg/m3 (28) 29.0
 
Sept. 19, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 26.0 μg/m3 (24) 5.6 μg/m3 (23) 27.0
 
Sept. 19, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 26.0 μg/m3 (24) 6.0 μg/m3 (25) 25.0
 
Sept. 19, 2020, noon N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 23.0 μg/m3 (21) 6.5 μg/m3 (27) 27.0
 
Sept. 19, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 22.0 μg/m3 (20) 9.4 μg/m3 (39) 39.0
 
Sept. 19, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 31.0 μg/m3 (28) 8.2 μg/m3 (34) 34.0
 
Sept. 19, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 28.0 μg/m3 (25) 3.6 μg/m3 (15) 26.0
 
Sept. 19, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 30.0 μg/m3 (27) 4.3 μg/m3 (18) 27.0
 
Sept. 19, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 29.0 μg/m3 (26) 5.1 μg/m3 (21) 26.0
 
Sept. 19, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 25.0 μg/m3 (23) 5.8 μg/m3 (24) 25.0
 
Sept. 19, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 35.0 μg/m3 (32) 5.6 μg/m3 (23) 32.0
 
Sept. 19, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 24.0 μg/m3 (22) 8.5 μg/m3 (35) 35.0
 
Sept. 19, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 34.0 μg/m3 (31) 4.8 μg/m3 (20) 31.0
 
Sept. 19, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 36.0 μg/m3 (33) 5.3 μg/m3 (22) 33.0
 
Sept. 19, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 30.0 μg/m3 (27) 4.6 μg/m3 (19) 27.0