ID: 2165

AQSQID: 460110003

Site Name: Research Farm

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

Updated: Oct. 16, 2021, 5:04 a.m.

Location: Brookings (Wern Ave), SD

Reporting: True, Located: True

Current AQI: 22.0

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
Oct. 16, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 16.0 μg/m3 (15) N/A 22.0
 
Oct. 16, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 17.0 μg/m3 (16) N/A 25.0
 
Oct. 16, 2021, midnight N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 14.0 μg/m3 (13) N/A 27.0
 
Oct. 15, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 24.0 μg/m3 (23) N/A 31.0
 
Oct. 15, 2021, 10 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) N/A 33.0
 
Oct. 15, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 21.0 μg/m3 (20) N/A 33.0
 
Oct. 15, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 28.0 μg/m3 (26) N/A 33.0
 
Oct. 15, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 11.0 μg/m3 (11) N/A 30.0
 
Oct. 15, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 8.0 μg/m3 (8) N/A 28.0
 
Oct. 15, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 10.0 μg/m3 (10) N/A 30.0
 
Oct. 15, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 14.0 μg/m3 (13) N/A 30.0
 
Oct. 15, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 5.0 μg/m3 (5) N/A 27.0
 
Oct. 15, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 6.0 μg/m3 (6) N/A 23.0
 
Oct. 15, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 8.0 μg/m3 (8) N/A 17.0
 
Oct. 15, 2021, noon N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 7.0 μg/m3 (7) N/A 17.0
 
Oct. 15, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A 4.0 μg/m3 (4) N/A 18.0
 
Oct. 15, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 5.0 μg/m3 (5) N/A 17.0
 
Oct. 15, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 8.0 μg/m3 (8) N/A 17.0
 
Oct. 15, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A 7.0 μg/m3 (7) N/A 18.0
 
Oct. 15, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 9.0 μg/m3 (9) N/A 20.0
 
Oct. 15, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 8.0 μg/m3 (8) N/A 23.0
 
Oct. 15, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 8.0 μg/m3 (8) N/A 24.0
 
Oct. 15, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 7.0 μg/m3 (7) N/A 23.0
 
Oct. 15, 2021, 3 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) N/A 19.0
 
Oct. 15, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 16.0 μg/m3 (15) N/A 20.0
 
Oct. 15, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 9.0 μg/m3 (9) N/A 22.0
 
Oct. 15, 2021, midnight N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 15.0 μg/m3 (14) N/A 25.0
 
Oct. 14, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 23.0 μg/m3 (22) N/A 26.0
 
Oct. 14, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 10.0 μg/m3 (10) N/A 31.0
 
Oct. 14, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 8.0 μg/m3 (8) 3.3 μg/m3 (14) 31.0
 
Oct. 14, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 5.0 μg/m3 (5) 4.6 μg/m3 (20) 31.0
 
Oct. 14, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 5.0 μg/m3 (5) 2.4 μg/m3 (10) 30.0
 
Oct. 14, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 8.0 μg/m3 (8) 3.6 μg/m3 (16) 30.0
 
Oct. 14, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 6.0 μg/m3 (6) 5.3 μg/m3 (23) 28.0
 
Oct. 14, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 7.0 μg/m3 (7) 3.6 μg/m3 (16) 26.0
 
Oct. 14, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 8.0 μg/m3 (8) 4.9 μg/m3 (21) 25.0
 
Oct. 14, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 9.0 μg/m3 (9) 5.1 μg/m3 (22) 24.0
 
Oct. 14, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 10.0 μg/m3 (10) 7.1 μg/m3 (30) 30.0
 
Oct. 14, 2021, noon N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 9.0 μg/m3 (9) 5.8 μg/m3 (25) 25.0
 
Oct. 14, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 11.0 μg/m3 (11) 4.4 μg/m3 (19) 20.0
 
Oct. 14, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 11.0 μg/m3 (11) 3.1 μg/m3 (13) 20.0
 
Oct. 14, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 11.0 μg/m3 (11) 5.8 μg/m3 (25) 25.0
 
Oct. 14, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 10.0 μg/m3 (10) 7.0 μg/m3 (30) 30.0
 
Oct. 14, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 9.0 μg/m3 (9) 6.5 μg/m3 (28) 28.0
 
Oct. 14, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A 6.0 μg/m3 (6) 3.6 μg/m3 (16) 18.0
 
Oct. 14, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 5.0 μg/m3 (5) 3.1 μg/m3 (13) 17.0
 
Oct. 14, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A 6.0 μg/m3 (6) 1.1 μg/m3 (5) 16.0
 
Oct. 14, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A 10.0 μg/m3 (10) 0.6 μg/m3 (3) 16.0
 
Oct. 14, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 13.0 μg/m3 (13) -1.1 μg/m3 (0) 17.0
 
Oct. 14, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 19.0 μg/m3 (18) -0.2 μg/m3 (0) 18.0
 
Oct. 14, 2021, midnight N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A 18.0 μg/m3 (17) 0.4 μg/m3 (2) 18.0
 
Oct. 13, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 22.0 μg/m3 (21) N/A 21.0
 
Oct. 13, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 16.0 μg/m3 (15) 0.3 μg/m3 (2) 24.0
 
Oct. 13, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 17.0 μg/m3 (16) 4.3 μg/m3 (18) 22.0
 
Oct. 13, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 5.0 μg/m3 (5) 8.9 μg/m3 (38) 38.0
 
Oct. 13, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 0.0 μg/m3 (0) 5.5 μg/m3 (23) 28.0
 
Oct. 13, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 2.0 μg/m3 (2) 2.1 μg/m3 (9) 26.0
 
Oct. 13, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 7.0 μg/m3 (7) 4.2 μg/m3 (18) 27.0
 
Oct. 13, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 12.0 μg/m3 (12) 5.7 μg/m3 (24) 29.0
 
Oct. 13, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 6.0 μg/m3 (6) 7.4 μg/m3 (31) 31.0
 
Oct. 13, 2021, noon N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 8.0 μg/m3 (8) 8.7 μg/m3 (37) 37.0
 
Oct. 13, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 9.0 μg/m3 (9) 4.3 μg/m3 (18) 26.0
 
Oct. 13, 2021, 10 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) 4.3 μg/m3 (18) 22.0
 
Oct. 13, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 14.0 μg/m3 (13) 8.4 μg/m3 (36) 36.0
 
Oct. 13, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 17.0 μg/m3 (16) 7.9 μg/m3 (33) 33.0
 
Oct. 13, 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) 6.5 μg/m3 (28) 28.0
 
Oct. 13, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 22.0 μg/m3 (21) 4.5 μg/m3 (19) 24.0
 
Oct. 13, 2021, 5 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) 3.3 μg/m3 (14) 25.0
 
Oct. 13, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 32.0 μg/m3 (30) 3.0 μg/m3 (13) 30.0
 
Oct. 13, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 39.0 μg/m3 (37) 4.3 μg/m3 (18) 37.0
 
Oct. 13, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 52.0 μg/m3 (49) 4.5 μg/m3 (19) 49.0
 
Oct. 13, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 70.0 μg/m3 (59) 3.5 μg/m3 (15) 59.0
 
Oct. 13, 2021, midnight N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 40.0 μg/m3 (38) 0.8 μg/m3 (4) 38.0
 
Oct. 12, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 28.0 μg/m3 (26) -1.4 μg/m3 (0) 30.0
 
Oct. 12, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 25.0 μg/m3 (24) -0.2 μg/m3 (0) 35.0
 
Oct. 12, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 24.0 μg/m3 (23) 4.6 μg/m3 (20) 36.0
 
Oct. 12, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 16.0 μg/m3 (15) 7.9 μg/m3 (33) 34.0
 
Oct. 12, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 26.0 μg/m3 (25) 3.8 μg/m3 (16) 35.0
 
Oct. 12, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 16.0 μg/m3 (15) 4.5 μg/m3 (19) 33.0
 
Oct. 12, 2021, 5 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) 3.3 μg/m3 (14) 30.0
 
Oct. 12, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 17.0 μg/m3 (16) 5.7 μg/m3 (24) 28.0
 
Oct. 12, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 24.0 μg/m3 (23) 3.3 μg/m3 (14) 25.0
 
Oct. 12, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 72.0 μg/m3 (60) 5.5 μg/m3 (23) 60.0
 
Oct. 12, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 39.0 μg/m3 (37) 8.0 μg/m3 (34) 37.0
 
Oct. 12, 2021, noon N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A 13.0 μg/m3 (13) 4.1 μg/m3 (18) 18.0
 
Oct. 12, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 10.0 μg/m3 (10) 2.1 μg/m3 (9) 19.0
 
Oct. 12, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 7.0 μg/m3 (7) 3.1 μg/m3 (13) 20.0
 
Oct. 12, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 8.0 μg/m3 (8) 4.1 μg/m3 (18) 21.0
 
Oct. 12, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 7.0 μg/m3 (7) 3.4 μg/m3 (15) 21.0
 
Oct. 12, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 10.0 μg/m3 (10) 0.7 μg/m3 (3) 20.0
 
Oct. 12, 2021, 6 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) -0.9 μg/m3 (0) 19.0
 
Oct. 12, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 18.0 μg/m3 (17) 1.4 μg/m3 (6) 21.0
 
Oct. 12, 2021, 4 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) 0.9 μg/m3 (4) 23.0
 
Oct. 12, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 33.0 μg/m3 (31) 0.0 μg/m3 (0) 31.0
 
Oct. 12, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 47.0 μg/m3 (44) 4.8 μg/m3 (20) 44.0
 
Oct. 12, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 82.0 μg/m3 (65) 9.4 μg/m3 (40) 65.0
 
Oct. 12, 2021, midnight N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 39.0 μg/m3 (37) 6.2 μg/m3 (26) 37.0
 
Oct. 11, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 51.0 μg/m3 (48) 3.8 μg/m3 (16) 48.0
 
Oct. 11, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 26.0 μg/m3 (25) 2.9 μg/m3 (13) 36.0
 
Oct. 11, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 40.0 μg/m3 (38) 0.5 μg/m3 (3) 38.0
 
Oct. 11, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 18.0 μg/m3 (17) 0.0 μg/m3 (0) 38.0
 
Oct. 11, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 31.0 μg/m3 (29) -0.2 μg/m3 (0) 37.0
 
Oct. 11, 2021, 6 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) -2.5 μg/m3 (0) 34.0
 
Oct. 11, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 29.0 μg/m3 (27) -4.1 μg/m3 (0) 30.0
 
Oct. 11, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 26.0 μg/m3 (25) 19.8 μg/m3 (68) 68.0
 
Oct. 11, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 27.0 μg/m3 (25) 10.4 μg/m3 (44) 44.0
 
Oct. 11, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A 29.0 μg/m3 (27) 12.9 μg/m3 (53) 53.0
 
Oct. 11, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A 37.0 μg/m3 (35) 13.4 μg/m3 (54) 54.0
 
Oct. 11, 2021, noon N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A 21.0 μg/m3 (20) 19.4 μg/m3 (67) 67.0
 
Oct. 11, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A 20.0 μg/m3 (19) 11.3 μg/m3 (48) 48.0
 
Oct. 11, 2021, 10 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) 13.5 μg/m3 (54) 54.0
 
Oct. 11, 2021, 9 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) 13.4 μg/m3 (54) 54.0
 
Oct. 11, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 19.0 μg/m3 (18) 17.4 μg/m3 (63) 63.0
 
Oct. 11, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 22.0 μg/m3 (21) 12.2 μg/m3 (52) 52.0
 
Oct. 11, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 36.0 μg/m3 (34) 11.9 μg/m3 (50) 50.0
 
Oct. 11, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 27.0 μg/m3 (25) 14.7 μg/m3 (57) 57.0
 
Oct. 11, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 23.0 μg/m3 (22) 14.7 μg/m3 (57) 57.0
 
Oct. 11, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 33.0 μg/m3 (31) 12.4 μg/m3 (52) 52.0
 
Oct. 11, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 44.0 μg/m3 (41) 15.7 μg/m3 (59) 59.0
 
Oct. 11, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 30.0 μg/m3 (28) 12.9 μg/m3 (53) 53.0
 
Oct. 11, 2021, midnight N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 25.0 μg/m3 (24) 5.8 μg/m3 (25) 37.0
 
Oct. 10, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 16.0 μg/m3 (15) 5.3 μg/m3 (23) 42.0
 
Oct. 10, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 26.0 μg/m3 (25) 9.2 μg/m3 (39) 39.0
 
Oct. 10, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 42.0 μg/m3 (39) 6.3 μg/m3 (27) 39.0
 
Oct. 10, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 30.0 μg/m3 (28) 5.3 μg/m3 (23) 37.0
 
Oct. 10, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 15.0 μg/m3 (14) 4.8 μg/m3 (20) 35.0
 
Oct. 10, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 13.0 μg/m3 (13) 6.3 μg/m3 (27) 33.0
 
Oct. 10, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 15.0 μg/m3 (14) 3.6 μg/m3 (16) 26.0
 
Oct. 10, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 8.0 μg/m3 (8) 0.4 μg/m3 (2) 25.0
 
Oct. 10, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 2.0 μg/m3 (2) 1.4 μg/m3 (6) 23.0
 
Oct. 10, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A 0.0 μg/m3 (0) 1.3 μg/m3 (6) 16.0
 
Oct. 10, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A 0.0 μg/m3 (0) 1.3 μg/m3 (6) 12.0
 
Oct. 10, 2021, noon N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A 4.0 μg/m3 (4) 0.0 μg/m3 (0) 10.0
 
Oct. 10, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A 6.0 μg/m3 (6) 0.0 μg/m3 (0) 9.0
 
Oct. 10, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A 0.0 μg/m3 (0) 2.8 μg/m3 (12) 15.0
 
Oct. 10, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 0.0 μg/m3 (0) 2.3 μg/m3 (10) 20.0
 
Oct. 10, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A 2.0 μg/m3 (2) 0.0 μg/m3 (0) 13.0
 
Oct. 10, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A 3.0 μg/m3 (3) 0.3 μg/m3 (2) 13.0
 
Oct. 10, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 5.0 μg/m3 (5) 0.0 μg/m3 (0) 20.0
 
Oct. 10, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 8.0 μg/m3 (8) -1.0 μg/m3 (0) 23.0
 
Oct. 10, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 20.0 μg/m3 (19) -2.2 μg/m3 (0) 21.0
 
Oct. 10, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 14.0 μg/m3 (13) -1.0 μg/m3 (0) 28.0
 
Oct. 10, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 49.0 μg/m3 (46) 2.8 μg/m3 (12) 46.0
 
Oct. 10, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 91.0 μg/m3 (69) 7.5 μg/m3 (32) 69.0
 
Oct. 10, 2021, midnight N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 76.0 μg/m3 (62) 10.4 μg/m3 (44) 62.0
 
Oct. 9, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 86.0 μg/m3 (67) 9.9 μg/m3 (42) 67.0
 
Oct. 9, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 64.0 μg/m3 (56) 9.9 μg/m3 (42) 56.0
 
Oct. 9, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 65.0 μg/m3 (56) 9.7 μg/m3 (41) 56.0
 
Oct. 9, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 55.0 μg/m3 (51) 9.7 μg/m3 (41) 51.0
 
Oct. 9, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 55.0 μg/m3 (51) 11.2 μg/m3 (47) 51.0
 
Oct. 9, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 50.0 μg/m3 (47) 8.0 μg/m3 (34) 47.0
 
Oct. 9, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 46.0 μg/m3 (43) 11.7 μg/m3 (49) 49.0
 
Oct. 9, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 43.0 μg/m3 (40) 7.7 μg/m3 (33) 40.0
 
Oct. 9, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 37.0 μg/m3 (35) 7.8 μg/m3 (33) 35.0
 
Oct. 9, 2021, 2 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) 9.4 μg/m3 (40) 40.0
 
Oct. 9, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 42.0 μg/m3 (39) 10.7 μg/m3 (45) 45.0
 
Oct. 9, 2021, noon N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 51.0 μg/m3 (48) 8.5 μg/m3 (36) 48.0
 
Oct. 9, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 48.0 μg/m3 (45) 11.9 μg/m3 (50) 50.0
 
Oct. 9, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 51.0 μg/m3 (48) 11.4 μg/m3 (48) 48.0
 
Oct. 9, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 53.0 μg/m3 (50) 13.2 μg/m3 (54) 54.0
 
Oct. 9, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 52.0 μg/m3 (49) 15.1 μg/m3 (58) 58.0
 
Oct. 9, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 54.0 μg/m3 (50) 13.2 μg/m3 (54) 54.0
 
Oct. 9, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 64.0 μg/m3 (56) 8.0 μg/m3 (34) 56.0
 
Oct. 9, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 67.0 μg/m3 (57) 9.4 μg/m3 (40) 57.0
 
Oct. 9, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 74.0 μg/m3 (61) 13.6 μg/m3 (55) 61.0
 
Oct. 9, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 139.0 μg/m3 (93) 13.1 μg/m3 (54) 93.0
 
Oct. 9, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 64.0 μg/m3 (56) 17.9 μg/m3 (64) 64.0
 
Oct. 9, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 0.1 μg/m3 (1) 37.0