ID: 1594

AQSQID: 051430005

Site Name: Sprngdle

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

Updated: Oct. 30, 2020, 1:40 a.m.

Location: Springdale (S Old Missouri Rd), AR

Reporting: True, Located: True

Current AQI: 33.0

Springdale (S Old Missouri Rd) AR, US: 36.1797, -94.1167

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Oct. 29, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 7.9 μg/m3 (33) 33.0
 
Oct. 29, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 8.1 μg/m3 (34) 34.0
 
Oct. 29, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 6.0 μg/m3 (25) 25.0
 
Oct. 29, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 5.7 μg/m3 (24) 24.0
 
Oct. 29, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 15.2 μg/m3 (58) 58.0
 
Oct. 29, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 8.4 μg/m3 (36) 36.0
 
Oct. 29, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 7.6 μg/m3 (32) 32.0
 
Oct. 29, 2020, noon N/A N/A N/A N/A N/A N/A 6.0 ppb (6) N/A N/A 4.3 μg/m3 (18) 18.0
 
Oct. 29, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) N/A N/A 3.5 μg/m3 (15) 15.0
 
Oct. 29, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A N/A 1.9 μg/m3 (8) 8.0
 
Oct. 29, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A N/A 1.3 μg/m3 (6) 6.0
 
Oct. 29, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) N/A N/A 0.8 μg/m3 (4) 5.0
 
Oct. 29, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) N/A N/A 2.9 μg/m3 (13) 13.0
 
Oct. 29, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) N/A N/A 1.7 μg/m3 (8) 8.0
 
Oct. 29, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A N/A 2.6 μg/m3 (11) 11.0
 
Oct. 29, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A N/A 1.8 μg/m3 (8) 13.0
 
Oct. 29, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A 1.5 μg/m3 (7) 13.0
 
Oct. 29, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A 2.1 μg/m3 (9) 13.0
 
Oct. 29, 2020, midnight N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A 2.2 μg/m3 (10) 15.0
 
Oct. 28, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A 2.9 μg/m3 (13) 16.0
 
Oct. 28, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A N/A 2.7 μg/m3 (12) 14.0
 
Oct. 28, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A N/A 2.8 μg/m3 (12) 13.0
 
Oct. 28, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A N/A 3.1 μg/m3 (13) 13.0
 
Oct. 28, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A N/A 0.4 μg/m3 (2) 10.0
 
Oct. 28, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) N/A N/A 0.4 μg/m3 (2) 8.0
 
Oct. 28, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) N/A N/A 2.1 μg/m3 (9) 9.0
 
Oct. 28, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) N/A N/A 1.8 μg/m3 (8) 8.0
 
Oct. 28, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) N/A N/A 3.0 μg/m3 (13) 13.0
 
Oct. 28, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) N/A N/A 1.3 μg/m3 (6) 6.0
 
Oct. 28, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) N/A N/A 1.1 μg/m3 (5) 7.0
 
Oct. 28, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) N/A N/A 3.0 μg/m3 (13) 13.0
 
Oct. 28, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) N/A N/A 3.2 μg/m3 (14) 14.0
 
Oct. 28, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A N/A 3.7 μg/m3 (16) 16.0
 
Oct. 28, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A N/A 3.6 μg/m3 (16) 16.0
 
Oct. 28, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A N/A 3.7 μg/m3 (16) 16.0
 
Oct. 28, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A N/A 5.2 μg/m3 (22) 22.0
 
Oct. 28, 2020, midnight N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A N/A 2.9 μg/m3 (13) 13.0
 
Oct. 27, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A N/A 2.6 μg/m3 (11) 11.0
 
Oct. 27, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A N/A 4.5 μg/m3 (19) 19.0
 
Oct. 27, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A N/A 4.5 μg/m3 (19) 19.0
 
Oct. 27, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A 2.6 μg/m3 (11) 12.0
 
Oct. 27, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A 1.2 μg/m3 (5) 12.0
 
Oct. 27, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A N/A -1.8 μg/m3 (0) 13.0
 
Oct. 27, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A 0.6 μg/m3 (3) 12.0
 
Oct. 27, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A N/A 2.2 μg/m3 (10) 11.0
 
Oct. 27, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A N/A 4.2 μg/m3 (18) 18.0
 
Oct. 27, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A 3.7 μg/m3 (16) 16.0
 
Oct. 27, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A 2.9 μg/m3 (13) 13.0
 
Oct. 27, 2020, noon N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A N/A 1.9 μg/m3 (8) 11.0
 
Oct. 27, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A N/A 3.5 μg/m3 (15) 15.0
 
Oct. 27, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A 0.6 μg/m3 (3) 12.0
 
Oct. 27, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A N/A 2.4 μg/m3 (10) 11.0
 
Oct. 27, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A N/A 1.7 μg/m3 (8) 11.0
 
Oct. 27, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A N/A 3.8 μg/m3 (16) 16.0
 
Oct. 27, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A 0.9 μg/m3 (4) 13.0
 
Oct. 27, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A N/A 1.6 μg/m3 (7) 14.0
 
Oct. 27, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A 2.5 μg/m3 (11) 15.0
 
Oct. 27, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A 2.1 μg/m3 (9) 15.0
 
Oct. 27, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A N/A 2.8 μg/m3 (12) 14.0
 
Oct. 27, 2020, midnight N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A N/A 5.2 μg/m3 (22) 22.0
 
Oct. 26, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A 2.9 μg/m3 (13) 13.0
 
Oct. 26, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A N/A 1.4 μg/m3 (6) 11.0
 
Oct. 26, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A N/A 5.9 μg/m3 (25) 25.0
 
Oct. 26, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A N/A 1.7 μg/m3 (8) 10.0
 
Oct. 26, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A N/A 1.2 μg/m3 (5) 9.0
 
Oct. 26, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A N/A 0.5 μg/m3 (3) 10.0
 
Oct. 26, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A N/A 1.3 μg/m3 (6) 9.0
 
Oct. 26, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A N/A 5.0 μg/m3 (21) 21.0
 
Oct. 26, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A 4.7 μg/m3 (20) 20.0
 
Oct. 26, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A 7.3 μg/m3 (31) 31.0
 
Oct. 26, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A 8.2 μg/m3 (35) 35.0
 
Oct. 26, 2020, noon N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A N/A 9.2 μg/m3 (39) 39.0
 
Oct. 26, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A 10.0 μg/m3 (42) 42.0
 
Oct. 26, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A 9.2 μg/m3 (39) 39.0
 
Oct. 26, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A N/A 10.8 μg/m3 (46) 46.0
 
Oct. 26, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A 8.5 μg/m3 (36) 36.0
 
Oct. 26, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A 8.1 μg/m3 (34) 34.0
 
Oct. 26, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A 10.4 μg/m3 (44) 44.0
 
Oct. 26, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A 6.9 μg/m3 (29) 29.0
 
Oct. 26, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 7.3 μg/m3 (31) 31.0
 
Oct. 26, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 9.0 μg/m3 (38) 38.0
 
Oct. 26, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 9.0 μg/m3 (38) 38.0
 
Oct. 26, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A 6.4 μg/m3 (27) 27.0
 
Oct. 26, 2020, midnight N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A 7.1 μg/m3 (30) 30.0
 
Oct. 25, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A 5.5 μg/m3 (23) 23.0
 
Oct. 25, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A 4.7 μg/m3 (20) 20.0
 
Oct. 25, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 7.2 μg/m3 (31) 31.0
 
Oct. 25, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 5.2 μg/m3 (22) 22.0
 
Oct. 25, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 4.8 μg/m3 (20) 20.0
 
Oct. 25, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 2.4 μg/m3 (10) 19.0
 
Oct. 25, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 2.4 μg/m3 (10) 20.0
 
Oct. 25, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 4.3 μg/m3 (18) 19.0
 
Oct. 25, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A 5.4 μg/m3 (23) 23.0
 
Oct. 25, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A 6.5 μg/m3 (28) 28.0
 
Oct. 25, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A N/A 5.1 μg/m3 (22) 22.0
 
Oct. 25, 2020, noon N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A N/A 6.7 μg/m3 (28) 28.0
 
Oct. 25, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A 7.3 μg/m3 (31) 31.0
 
Oct. 25, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A N/A 6.5 μg/m3 (28) 28.0
 
Oct. 25, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A N/A 5.0 μg/m3 (21) 21.0
 
Oct. 25, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A N/A 5.6 μg/m3 (24) 24.0
 
Oct. 25, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A N/A 6.4 μg/m3 (27) 27.0
 
Oct. 25, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A 7.1 μg/m3 (30) 30.0
 
Oct. 25, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A 6.7 μg/m3 (28) 28.0
 
Oct. 25, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A 8.0 μg/m3 (34) 34.0
 
Oct. 25, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A 7.6 μg/m3 (32) 32.0
 
Oct. 25, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A N/A 8.0 μg/m3 (34) 34.0
 
Oct. 25, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A 8.0 μg/m3 (34) 34.0
 
Oct. 25, 2020, midnight N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A 6.6 μg/m3 (28) 28.0
 
Oct. 24, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A 7.9 μg/m3 (33) 33.0
 
Oct. 24, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A 5.3 μg/m3 (23) 23.0
 
Oct. 24, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A 4.7 μg/m3 (20) 20.0
 
Oct. 24, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A 4.1 μg/m3 (18) 18.0
 
Oct. 24, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 2.8 μg/m3 (12) 18.0
 
Oct. 24, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 0.0 μg/m3 (0) 18.0
 
Oct. 24, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 4.3 μg/m3 (18) 18.0
 
Oct. 24, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 3.2 μg/m3 (14) 18.0
 
Oct. 24, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 2.3 μg/m3 (10) 19.0
 
Oct. 24, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 0.8 μg/m3 (4) 19.0
 
Oct. 24, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 4.3 μg/m3 (18) 19.0
 
Oct. 24, 2020, noon N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 4.7 μg/m3 (20) 20.0
 
Oct. 24, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 3.8 μg/m3 (16) 20.0
 
Oct. 24, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 2.7 μg/m3 (12) 21.0
 
Oct. 24, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 2.2 μg/m3 (10) 21.0
 
Oct. 24, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 2.2 μg/m3 (10) 22.0
 
Oct. 24, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 3.0 μg/m3 (13) 22.0
 
Oct. 24, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A 3.8 μg/m3 (16) 23.0
 
Oct. 24, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A 1.5 μg/m3 (7) 23.0
 
Oct. 24, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 2.3 μg/m3 (10) 21.0
 
Oct. 24, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 2.5 μg/m3 (11) 22.0
 
Oct. 24, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 3.9 μg/m3 (17) 18.0
 
Oct. 24, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A 3.0 μg/m3 (13) 17.0
 
Oct. 24, 2020, midnight N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A 2.8 μg/m3 (12) 15.0
 
Oct. 23, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A N/A 3.1 μg/m3 (13) 14.0
 
Oct. 23, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A 5.2 μg/m3 (22) 22.0
 
Oct. 23, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A N/A 2.4 μg/m3 (10) 13.0
 
Oct. 23, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A N/A 0.2 μg/m3 (1) 13.0
 
Oct. 23, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A 0.0 μg/m3 (0) 12.0
 
Oct. 23, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A N/A -0.9 μg/m3 (0) 11.0
 
Oct. 23, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A N/A 0.5 μg/m3 (3) 10.0
 
Oct. 23, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) N/A N/A 0.8 μg/m3 (4) 8.0
 
Oct. 23, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) N/A N/A 5.8 μg/m3 (25) 25.0
 
Oct. 23, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) N/A N/A 10.7 μg/m3 (45) 45.0
 
Oct. 23, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A 6.6 μg/m3 (28) 28.0
 
Oct. 23, 2020, noon N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 6.8 μg/m3 (29) 29.0
 
Oct. 23, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 12.3 μg/m3 (52) 52.0
 
Oct. 23, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 10.8 μg/m3 (46) 46.0
 
Oct. 23, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 9.9 μg/m3 (42) 42.0
 
Oct. 23, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 8.9 μg/m3 (38) 38.0
 
Oct. 23, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 9.9 μg/m3 (42) 42.0
 
Oct. 23, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 11.3 μg/m3 (48) 48.0
 
Oct. 23, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 11.1 μg/m3 (47) 47.0
 
Oct. 23, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 11.3 μg/m3 (48) 48.0
 
Oct. 23, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 11.7 μg/m3 (49) 49.0
 
Oct. 23, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 12.1 μg/m3 (51) 51.0
 
Oct. 23, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 11.7 μg/m3 (49) 49.0
 
Oct. 23, 2020, midnight N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 11.6 μg/m3 (49) 49.0
 
Oct. 22, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 8.0 μg/m3 (34) 34.0
 
Oct. 22, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 7.3 μg/m3 (31) 31.0
 
Oct. 22, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 5.4 μg/m3 (23) 31.0
 
Oct. 22, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 6.2 μg/m3 (26) 32.0
 
Oct. 22, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 6.2 μg/m3 (26) 32.0
 
Oct. 22, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 7.0 μg/m3 (30) 33.0
 
Oct. 22, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 7.6 μg/m3 (32) 34.0
 
Oct. 22, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 8.7 μg/m3 (37) 37.0
 
Oct. 22, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 10.0 μg/m3 (42) 42.0
 
Oct. 22, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 10.4 μg/m3 (44) 44.0
 
Oct. 22, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 13.2 μg/m3 (54) 54.0
 
Oct. 22, 2020, noon N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A 10.1 μg/m3 (43) 43.0