AQSQID: 460710001

Site Name: Badlands

Location: Interior (Ben Reifel Rd), SD

Reporting: True, Located: True

Current AQI: 31.0

Interior (Ben Reifel Rd) SD, US: 43.746944, -101.941109

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 18, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 5.0 μg/m3 (5) 1.3 μg/m3 (5) 31.0
 
Jan. 18, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 6.0 μg/m3 (5) 1.5 μg/m3 (6) 30.0
 
Jan. 18, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 6.0 μg/m3 (5) 3.7 μg/m3 (15) 30.0
 
Jan. 18, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 7.0 μg/m3 (6) 6.4 μg/m3 (27) 28.0
 
Jan. 18, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 12.0 μg/m3 (11) 4.9 μg/m3 (20) 28.0
 
Jan. 18, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 7.0 μg/m3 (6) 5.2 μg/m3 (22) 27.0
 
Jan. 18, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 6.0 μg/m3 (5) 3.9 μg/m3 (16) 27.0
 
Jan. 18, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 8.0 μg/m3 (7) 5.2 μg/m3 (22) 27.0
 
Jan. 18, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 7.0 μg/m3 (6) 4.7 μg/m3 (20) 26.0
 
Jan. 18, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 6.0 μg/m3 (5) 4.2 μg/m3 (18) 25.0
 
Jan. 18, 2020, noon N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 15.0 μg/m3 (14) 4.9 μg/m3 (20) 23.0
 
Jan. 18, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 12.0 μg/m3 (11) 6.4 μg/m3 (27) 27.0
 
Jan. 18, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 9.0 μg/m3 (8) 5.9 μg/m3 (25) 25.0
 
Jan. 18, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 9.0 μg/m3 (8) 4.4 μg/m3 (18) 22.0
 
Jan. 18, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 8.0 μg/m3 (7) 6.4 μg/m3 (27) 27.0
 
Jan. 18, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 18.0 μg/m3 (16) 6.9 μg/m3 (29) 29.0
 
Jan. 18, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 15.0 μg/m3 (14) 6.4 μg/m3 (27) 27.0
 
Jan. 18, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 15.0 μg/m3 (14) 6.4 μg/m3 (27) 27.0
 
Jan. 18, 2020, 4 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) 3.9 μg/m3 (16) 33.0
 
Jan. 18, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 30.0 μg/m3 (27) 5.7 μg/m3 (24) 27.0
 
Jan. 18, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 20.0 μg/m3 (18) 6.4 μg/m3 (27) 27.0
 
Jan. 18, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 28.0 μg/m3 (25) 1.2 μg/m3 (5) 25.0
 
Jan. 18, 2020, midnight N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 18.0 μg/m3 (16) 3.2 μg/m3 (13) 22.0
 
Jan. 17, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 26.0 μg/m3 (24) 4.9 μg/m3 (20) 24.0
 
Jan. 17, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 5.0 μg/m3 (5) 2.0 μg/m3 (8) 18.0
 
Jan. 17, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 1.0 μg/m3 (1) -1.3 μg/m3 (0) 18.0
 
Jan. 17, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 3.0 μg/m3 (3) 0.6 μg/m3 (2) 19.0
 
Jan. 17, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 8.0 μg/m3 (7) 0.8 μg/m3 (3) 20.0
 
Jan. 17, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 12.0 μg/m3 (11) 0.8 μg/m3 (3) 19.0
 
Jan. 17, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 7.0 μg/m3 (6) 2.0 μg/m3 (8) 18.0
 
Jan. 17, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 5.0 μg/m3 (5) 4.2 μg/m3 (18) 18.0
 
Jan. 17, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 3.0 μg/m3 (3) 4.9 μg/m3 (20) 20.0
 
Jan. 17, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 5.0 μg/m3 (5) 2.7 μg/m3 (11) 19.0
 
Jan. 17, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 8.0 μg/m3 (7) 3.7 μg/m3 (15) 21.0
 
Jan. 17, 2020, noon N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 10.0 μg/m3 (9) 2.0 μg/m3 (8) 22.0
 
Jan. 17, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 12.0 μg/m3 (11) 2.2 μg/m3 (9) 23.0
 
Jan. 17, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 9.0 μg/m3 (8) 2.0 μg/m3 (8) 24.0
 
Jan. 17, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 15.0 μg/m3 (14) 1.5 μg/m3 (6) 24.0
 
Jan. 17, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 20.0 μg/m3 (18) 1.3 μg/m3 (5) 24.0
 
Jan. 17, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 18.0 μg/m3 (16) 1.0 μg/m3 (4) 24.0
 
Jan. 17, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 36.0 μg/m3 (33) 0.1 μg/m3 (0) 33.0
 
Jan. 17, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 64.0 μg/m3 (54) 1.5 μg/m3 (6) 54.0
 
Jan. 17, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 32.0 μg/m3 (29) 1.0 μg/m3 (4) 29.0
 
Jan. 17, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A N/A 25.0
 
Jan. 17, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A N/A 25.0
 
Jan. 17, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 21.0 μg/m3 (19) 4.2 μg/m3 (18) 26.0
 
Jan. 17, 2020, midnight N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 24.0 μg/m3 (22) 4.2 μg/m3 (18) 28.0
 
Jan. 16, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 28.0 μg/m3 (25) 4.2 μg/m3 (18) 28.0
 
Jan. 16, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 46.0 μg/m3 (42) 4.2 μg/m3 (18) 42.0
 
Jan. 16, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 87.0 μg/m3 (66) 3.0 μg/m3 (12) 66.0
 
Jan. 16, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 50.0 μg/m3 (45) 2.5 μg/m3 (10) 45.0
 
Jan. 16, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 70.0 μg/m3 (58) 1.0 μg/m3 (4) 58.0
 
Jan. 16, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 11.0 μg/m3 (10) 2.7 μg/m3 (11) 30.0
 
Jan. 16, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 4.0 μg/m3 (4) 3.2 μg/m3 (13) 27.0
 
Jan. 16, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 3.0 μg/m3 (3) -0.1 μg/m3 (0) 25.0
 
Jan. 16, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 6.0 μg/m3 (5) -0.1 μg/m3 (0) 23.0
 
Jan. 16, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 8.0 μg/m3 (7) 1.7 μg/m3 (7) 22.0
 
Jan. 16, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 6.0 μg/m3 (5) 3.5 μg/m3 (15) 20.0
 
Jan. 16, 2020, noon N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 6.0 μg/m3 (5) 2.5 μg/m3 (10) 18.0
 
Jan. 16, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 9.0 μg/m3 (8) 1.7 μg/m3 (7) 18.0
 
Jan. 16, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 10.0 μg/m3 (9) 4.7 μg/m3 (20) 20.0
 
Jan. 16, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 15.0 μg/m3 (14) 2.2 μg/m3 (9) 16.0
 
Jan. 16, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 16.0 μg/m3 (15) 3.2 μg/m3 (13) 15.0
 
Jan. 16, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 13.0 μg/m3 (12) 4.4 μg/m3 (18) 18.0
 
Jan. 16, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 7.0 μg/m3 (6) 4.7 μg/m3 (20) 20.0
 
Jan. 16, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 10.0 μg/m3 (9) 3.5 μg/m3 (15) 19.0
 
Jan. 16, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 9.0 μg/m3 (8) 3.4 μg/m3 (14) 21.0
 
Jan. 16, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 7.0 μg/m3 (6) 5.7 μg/m3 (24) 24.0
 
Jan. 16, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 7.0 μg/m3 (6) 2.7 μg/m3 (11) 20.0
 
Jan. 16, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 13.0 μg/m3 (12) 3.2 μg/m3 (13) 19.0
 
Jan. 16, 2020, midnight N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 9.0 μg/m3 (8) 5.2 μg/m3 (22) 22.0
 
Jan. 15, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 8.0 μg/m3 (7) 4.2 μg/m3 (18) 22.0
 
Jan. 15, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 9.0 μg/m3 (8) 2.2 μg/m3 (9) 22.0
 
Jan. 15, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 6.0 μg/m3 (5) 4.4 μg/m3 (18) 22.0
 
Jan. 15, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 8.0 μg/m3 (7) 4.9 μg/m3 (20) 23.0
 
Jan. 15, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 11.0 μg/m3 (10) 2.0 μg/m3 (8) 24.0
 
Jan. 15, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 8.0 μg/m3 (7) 2.2 μg/m3 (9) 24.0
 
Jan. 15, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 8.0 μg/m3 (7) 1.5 μg/m3 (6) 24.0
 
Jan. 15, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 8.0 μg/m3 (7) 3.9 μg/m3 (16) 23.0
 
Jan. 15, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 15.0 μg/m3 (14) 4.7 μg/m3 (20) 22.0
 
Jan. 15, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 7.0 μg/m3 (6) 7.3 μg/m3 (30) 30.0
 
Jan. 15, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 8.0 μg/m3 (7) 5.4 μg/m3 (23) 23.0
 
Jan. 15, 2020, noon N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 7.0 μg/m3 (6) 4.9 μg/m3 (20) 22.0
 
Jan. 15, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 14.0 μg/m3 (13) 4.7 μg/m3 (20) 22.0
 
Jan. 15, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 13.0 μg/m3 (12) 7.8 μg/m3 (32) 32.0
 
Jan. 15, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 4.0 μg/m3 (4) 6.4 μg/m3 (27) 27.0
 
Jan. 15, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 16.0 μg/m3 (15) 8.1 μg/m3 (34) 34.0
 
Jan. 15, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 13.0 μg/m3 (12) 8.3 μg/m3 (35) 35.0
 
Jan. 15, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 19.0 μg/m3 (17) 11.5 μg/m3 (48) 48.0
 
Jan. 15, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 11.0 μg/m3 (10) 6.8 μg/m3 (28) 28.0
 
Jan. 15, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 11.0 μg/m3 (10) 5.1 μg/m3 (21) 22.0
 
Jan. 15, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 6.0 μg/m3 (5) 5.6 μg/m3 (23) 23.0
 
Jan. 15, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 17.0 μg/m3 (15) 7.8 μg/m3 (32) 32.0
 
Jan. 15, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 9.0 μg/m3 (8) 12.0 μg/m3 (50) 50.0
 
Jan. 15, 2020, midnight N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 12.0 μg/m3 (11) 9.8 μg/m3 (41) 41.0
 
Jan. 14, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 11.0 μg/m3 (10) 7.6 μg/m3 (32) 32.0
 
Jan. 14, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 20.0 μg/m3 (18) 11.5 μg/m3 (48) 48.0
 
Jan. 14, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 8.0 μg/m3 (7) 10.3 μg/m3 (43) 43.0
 
Jan. 14, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 11.0 μg/m3 (10) 7.6 μg/m3 (32) 32.0
 
Jan. 14, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 18.0 μg/m3 (16) 8.8 μg/m3 (37) 37.0
 
Jan. 14, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 4.7 μg/m3 (20) 20.0
 
Jan. 14, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) N/A 15.0
 
Jan. 14, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 16.0 μg/m3 (15) 9.8 μg/m3 (41) 41.0
 
Jan. 14, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 15.0 μg/m3 (14) 7.8 μg/m3 (32) 32.0
 
Jan. 14, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 11.0 μg/m3 (10) 6.9 μg/m3 (29) 29.0
 
Jan. 14, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 11.0 μg/m3 (10) 8.1 μg/m3 (34) 34.0
 
Jan. 14, 2020, noon N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 23.0 μg/m3 (21) 6.9 μg/m3 (29) 29.0
 
Jan. 14, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 11.0 μg/m3 (10) 7.1 μg/m3 (30) 30.0
 
Jan. 14, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 12.0 μg/m3 (11) 7.3 μg/m3 (30) 30.0
 
Jan. 14, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 13.0 μg/m3 (12) 7.1 μg/m3 (30) 30.0
 
Jan. 14, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 16.0 μg/m3 (15) 11.0 μg/m3 (46) 46.0
 
Jan. 14, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 13.0 μg/m3 (12) 7.6 μg/m3 (32) 32.0
 
Jan. 14, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 9.0 μg/m3 (8) 4.9 μg/m3 (20) 20.0
 
Jan. 14, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 10.0 μg/m3 (9) 4.2 μg/m3 (18) 21.0
 
Jan. 14, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 7.0 μg/m3 (6) 1.5 μg/m3 (6) 22.0
 
Jan. 14, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 4.0 μg/m3 (4) 3.9 μg/m3 (16) 22.0
 
Jan. 14, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 4.0 μg/m3 (4) 3.2 μg/m3 (13) 22.0
 
Jan. 14, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 1.0 μg/m3 (1) -0.8 μg/m3 (0) 22.0
 
Jan. 14, 2020, midnight N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 2.0 μg/m3 (2) -0.1 μg/m3 (0) 22.0
 
Jan. 13, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 9.0 μg/m3 (8) 2.0 μg/m3 (8) 30.0
 
Jan. 13, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 3.0 μg/m3 (3) 2.2 μg/m3 (9) 33.0
 
Jan. 13, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 1.0 μg/m3 (1) 2.0 μg/m3 (8) 34.0
 
Jan. 13, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 0.0 μg/m3 (0) 1.7 μg/m3 (7) 32.0
 
Jan. 13, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 1.0 μg/m3 (1) 0.5 μg/m3 (2) 32.0
 
Jan. 13, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 4.0 μg/m3 (4) 0.5 μg/m3 (2) 30.0
 
Jan. 13, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 4.0 μg/m3 (4) 2.5 μg/m3 (10) 29.0
 
Jan. 13, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 4.0 μg/m3 (4) 2.7 μg/m3 (11) 28.0
 
Jan. 13, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 1.0 μg/m3 (1) -0.1 μg/m3 (0) 28.0
 
Jan. 13, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 0.0 μg/m3 (0) -2.5 μg/m3 (0) 28.0
 
Jan. 13, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 1.0 μg/m3 (1) -1.1 μg/m3 (0) 28.0
 
Jan. 13, 2020, noon N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 2.0 μg/m3 (2) 2.2 μg/m3 (9) 30.0
 
Jan. 13, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 0.0 μg/m3 (0) 1.2 μg/m3 (5) 30.0
 
Jan. 13, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 0.0 μg/m3 (0) 0.5 μg/m3 (2) 30.0
 
Jan. 13, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 1.0 μg/m3 (1) 2.2 μg/m3 (9) 28.0
 
Jan. 13, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 0.0 μg/m3 (0) 2.7 μg/m3 (11) 26.0
 
Jan. 13, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 4.0 μg/m3 (4) 3.5 μg/m3 (15) 22.0
 
Jan. 13, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 6.0 μg/m3 (5) 2.2 μg/m3 (9) 19.0
 
Jan. 13, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 1.0 μg/m3 (1) 1.3 μg/m3 (5) 18.0
 
Jan. 13, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 2.0 μg/m3 (2) 2.7 μg/m3 (11) 19.0
 
Jan. 13, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 0.0 μg/m3 (0) 2.7 μg/m3 (11) 19.0
 
Jan. 13, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 1.0 μg/m3 (1) 4.2 μg/m3 (18) 19.0
 
Jan. 13, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 6.0 μg/m3 (5) 4.5 μg/m3 (19) 20.0
 
Jan. 13, 2020, midnight N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 8.0 μg/m3 (7) 1.0 μg/m3 (4) 20.0
 
Jan. 12, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 7.0 μg/m3 (6) 0.5 μg/m3 (2) 20.0
 
Jan. 12, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 2.0 μg/m3 (2) -0.3 μg/m3 (0) 23.0
 
Jan. 12, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 4.0 μg/m3 (4) 1.3 μg/m3 (5) 25.0
 
Jan. 12, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 5.0 μg/m3 (5) 2.2 μg/m3 (9) 25.0
 
Jan. 12, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 6.0 μg/m3 (5) 1.5 μg/m3 (6) 22.0
 
Jan. 12, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 6.0 μg/m3 (5) 2.5 μg/m3 (10) 21.0
 
Jan. 12, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 9.0 μg/m3 (8) 2.0 μg/m3 (8) 18.0
 
Jan. 12, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 7.0 μg/m3 (6) 2.2 μg/m3 (9) 17.0
 
Jan. 12, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 9.0 μg/m3 (8) 4.2 μg/m3 (18) 18.0
 
Jan. 12, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 7.0 μg/m3 (6) 16.7 μg/m3 (60) 60.0
 
Jan. 12, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 8.0 μg/m3 (7) 1.5 μg/m3 (6) 15.0
 
Jan. 12, 2020, noon N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 1.0 μg/m3 (1) 2.2 μg/m3 (9) 14.0
 
Jan. 12, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 9.0 μg/m3 (8) 3.2 μg/m3 (13) 14.0
 
Jan. 12, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 3.0 μg/m3 (3) 3.2 μg/m3 (13) 17.0
 
Jan. 12, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 5.0 μg/m3 (5) 2.5 μg/m3 (10) 20.0
 
Jan. 12, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 7.0 μg/m3 (6) 3.0 μg/m3 (12) 18.0
 
Jan. 12, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 4.0 μg/m3 (4) 3.4 μg/m3 (14) 18.0
 
Jan. 12, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 6.0 μg/m3 (5) 3.4 μg/m3 (14) 17.0
 
Jan. 12, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 7.0 μg/m3 (6) 2.5 μg/m3 (10) 17.0
 
Jan. 12, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 2.0 μg/m3 (2) 2.7 μg/m3 (11) 16.0
 
Jan. 12, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A -2.0 μg/m3 (0) 2.2 μg/m3 (9) 20.0
 
Jan. 12, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 0.0 μg/m3 (0) 0.3 μg/m3 (1) 20.0
 
Jan. 12, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 3.0 μg/m3 (3) 1.7 μg/m3 (7) 22.0
 
Jan. 12, 2020, midnight N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 3.0 μg/m3 (3) 2.5 μg/m3 (10) 22.0
 
Jan. 11, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 4.0 μg/m3 (4) -0.1 μg/m3 (0) 25.0