AQSQID: 051430005

Site Name: Sprngdle

Location: Springdale, AR

Reporting: True, Located: True

Current AQI: 52.0

Springdale AR, US: 36.1797, -94.1167

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 11, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 8.0 μg/m3 (33) 33.0
 
Sept. 11, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 6.9 μg/m3 (29) 29.0
 
Sept. 11, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 9.6 μg/m3 (40) 40.0
 
Sept. 11, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 10.7 μg/m3 (45) 45.0
 
Sept. 11, 2019, midnight N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 9.5 μg/m3 (40) 40.0
 
Sept. 10, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 7.9 μg/m3 (33) 33.0
 
Sept. 10, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 7.0 μg/m3 (29) 34.0
 
Sept. 10, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 4.3 μg/m3 (18) 35.0
 
Sept. 10, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 6.7 μg/m3 (28) 36.0
 
Sept. 10, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 3.9 μg/m3 (16) 38.0
 
Sept. 10, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 4.5 μg/m3 (19) 38.0
 
Sept. 10, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 9.3 μg/m3 (39) 39.0
 
Sept. 10, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 8.2 μg/m3 (34) 37.0
 
Sept. 10, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 9.7 μg/m3 (40) 40.0
 
Sept. 10, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 8.8 μg/m3 (37) 37.0
 
Sept. 10, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 10.8 μg/m3 (45) 45.0
 
Sept. 10, 2019, noon N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 8.8 μg/m3 (37) 37.0
 
Sept. 10, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 7.1 μg/m3 (30) 30.0
 
Sept. 10, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 6.4 μg/m3 (27) 28.0
 
Sept. 10, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 5.7 μg/m3 (24) 30.0
 
Sept. 10, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 5.6 μg/m3 (23) 30.0
 
Sept. 10, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 9.6 μg/m3 (40) 40.0
 
Sept. 10, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 9.2 μg/m3 (38) 38.0
 
Sept. 10, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 7.0 μg/m3 (29) 29.0
 
Sept. 10, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 9.4 μg/m3 (39) 39.0
 
Sept. 10, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 8.1 μg/m3 (34) 34.0
 
Sept. 10, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 10.6 μg/m3 (44) 44.0
 
Sept. 10, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 9.5 μg/m3 (40) 40.0
 
Sept. 10, 2019, midnight N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 10.9 μg/m3 (45) 45.0
 
Sept. 9, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 10.4 μg/m3 (43) 43.0
 
Sept. 9, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 10.2 μg/m3 (42) 42.0
 
Sept. 9, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 8.7 μg/m3 (36) 36.0
 
Sept. 9, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 11.2 μg/m3 (47) 47.0
 
Sept. 9, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 9.0 μg/m3 (38) 38.0
 
Sept. 9, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 7.2 μg/m3 (30) 37.0
 
Sept. 9, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 5.8 μg/m3 (24) 35.0
 
Sept. 9, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 6.6 μg/m3 (28) 32.0
 
Sept. 9, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 12.0 μg/m3 (50) 50.0
 
Sept. 9, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 14.6 μg/m3 (56) 56.0
 
Sept. 9, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 16.3 μg/m3 (59) 59.0
 
Sept. 9, 2019, noon N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 16.2 μg/m3 (59) 59.0
 
Sept. 9, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 13.9 μg/m3 (54) 54.0
 
Sept. 9, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 12.4 μg/m3 (51) 51.0
 
Sept. 9, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 13.5 μg/m3 (53) 53.0
 
Sept. 9, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 12.8 μg/m3 (52) 52.0
 
Sept. 9, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 12.3 μg/m3 (51) 51.0
 
Sept. 9, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 14.4 μg/m3 (55) 55.0
 
Sept. 9, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 13.1 μg/m3 (52) 52.0
 
Sept. 9, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 9.9 μg/m3 (41) 41.0
 
Sept. 9, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 9.6 μg/m3 (40) 40.0
 
Sept. 9, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 13.1 μg/m3 (52) 52.0
 
Sept. 9, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 13.8 μg/m3 (54) 54.0
 
Sept. 9, 2019, midnight N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 13.2 μg/m3 (53) 53.0
 
Sept. 8, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 11.0 μg/m3 (46) 46.0
 
Sept. 8, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 4.3 μg/m3 (18) 32.0
 
Sept. 8, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 9.3 μg/m3 (39) 39.0
 
Sept. 8, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 5.3 μg/m3 (22) 34.0
 
Sept. 8, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 7.3 μg/m3 (30) 35.0
 
Sept. 8, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 9.8 μg/m3 (41) 41.0
 
Sept. 8, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 9.0 μg/m3 (38) 38.0
 
Sept. 8, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 13.9 μg/m3 (54) 54.0
 
Sept. 8, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 18.4 μg/m3 (64) 64.0
 
Sept. 8, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 20.0 μg/m3 (67) 67.0
 
Sept. 8, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 20.3 μg/m3 (68) 68.0
 
Sept. 8, 2019, noon N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 18.0 μg/m3 (63) 63.0
 
Sept. 8, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 17.7 μg/m3 (62) 62.0
 
Sept. 8, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 19.4 μg/m3 (66) 66.0
 
Sept. 8, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 20.2 μg/m3 (67) 67.0
 
Sept. 8, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 19.3 μg/m3 (66) 66.0
 
Sept. 8, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 18.6 μg/m3 (64) 64.0
 
Sept. 8, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 20.1 μg/m3 (67) 67.0
 
Sept. 8, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 22.0 μg/m3 (71) 71.0
 
Sept. 8, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 24.0 μg/m3 (76) 76.0
 
Sept. 8, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 30.1 μg/m3 (89) 89.0
 
Sept. 8, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 34.1 μg/m3 (97) 97.0
 
Sept. 8, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 38.6 μg/m3 (108) 108.0
 
Sept. 8, 2019, midnight N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 43.9 μg/m3 (121) 121.0
 
Sept. 7, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 44.2 μg/m3 (122) 122.0
 
Sept. 7, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 45.5 μg/m3 (125) 125.0
 
Sept. 7, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 34.1 μg/m3 (97) 97.0
 
Sept. 7, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 31.7 μg/m3 (92) 92.0
 
Sept. 7, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 33.1 μg/m3 (95) 95.0
 
Sept. 7, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 36.4 μg/m3 (102) 102.0
 
Sept. 7, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 30.2 μg/m3 (89) 89.0
 
Sept. 7, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 30.4 μg/m3 (89) 89.0
 
Sept. 7, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 38.2 μg/m3 (107) 107.0
 
Sept. 7, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 40.3 μg/m3 (112) 112.0
 
Sept. 7, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 33.0 μg/m3 (95) 95.0
 
Sept. 7, 2019, noon N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A N/A 29.9 μg/m3 (88) 88.0
 
Sept. 7, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A N/A 27.7 μg/m3 (83) 83.0
 
Sept. 7, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A N/A 28.9 μg/m3 (86) 86.0
 
Sept. 7, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A N/A 29.2 μg/m3 (87) 87.0
 
Sept. 7, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A N/A 28.9 μg/m3 (86) 86.0
 
Sept. 7, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A N/A 39.3 μg/m3 (110) 110.0
 
Sept. 7, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A N/A 32.7 μg/m3 (94) 94.0
 
Sept. 7, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A N/A 36.8 μg/m3 (103) 103.0
 
Sept. 7, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) N/A N/A 36.2 μg/m3 (102) 102.0
 
Sept. 7, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 39.2 μg/m3 (109) 109.0
 
Sept. 7, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 31.6 μg/m3 (92) 92.0
 
Sept. 7, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 28.3 μg/m3 (85) 85.0
 
Sept. 7, 2019, midnight N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 26.6 μg/m3 (81) 81.0
 
Sept. 6, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 22.7 μg/m3 (73) 73.0
 
Sept. 6, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 20.2 μg/m3 (67) 67.0
 
Sept. 6, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A N/A 17.8 μg/m3 (62) 62.0
 
Sept. 6, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A N/A 19.6 μg/m3 (66) 66.0
 
Sept. 6, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A N/A 16.0 μg/m3 (59) 59.0
 
Sept. 6, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (48) N/A N/A 15.5 μg/m3 (57) 57.0
 
Sept. 6, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (46) N/A N/A 14.3 μg/m3 (55) 55.0
 
Sept. 6, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 15.7 μg/m3 (58) 58.0
 
Sept. 6, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 20.9 μg/m3 (69) 69.0
 
Sept. 6, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 24.5 μg/m3 (77) 77.0
 
Sept. 6, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A N/A 25.6 μg/m3 (79) 79.0
 
Sept. 6, 2019, noon N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A N/A 24.7 μg/m3 (77) 77.0
 
Sept. 6, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A N/A 18.2 μg/m3 (63) 63.0
 
Sept. 6, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A N/A 16.4 μg/m3 (59) 59.0
 
Sept. 6, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A N/A 14.8 μg/m3 (56) 56.0
 
Sept. 6, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A N/A 15.4 μg/m3 (57) 57.0
 
Sept. 6, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) N/A N/A 14.1 μg/m3 (54) 54.0
 
Sept. 6, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A N/A 17.4 μg/m3 (61) 61.0
 
Sept. 6, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A N/A 17.3 μg/m3 (61) 61.0
 
Sept. 6, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A N/A 20.9 μg/m3 (69) 69.0
 
Sept. 6, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A N/A 23.3 μg/m3 (74) 74.0
 
Sept. 6, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A N/A 23.9 μg/m3 (75) 75.0
 
Sept. 6, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 21.3 μg/m3 (70) 70.0
 
Sept. 6, 2019, midnight N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 15.3 μg/m3 (57) 57.0
 
Sept. 5, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 13.5 μg/m3 (53) 53.0
 
Sept. 5, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 11.6 μg/m3 (48) 48.0
 
Sept. 5, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 11.1 μg/m3 (46) 46.0
 
Sept. 5, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 11.8 μg/m3 (49) 49.0
 
Sept. 5, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 11.8 μg/m3 (49) 49.0
 
Sept. 5, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 11.6 μg/m3 (48) 48.0
 
Sept. 5, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 10.4 μg/m3 (43) 43.0
 
Sept. 5, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 10.7 μg/m3 (45) 45.0
 
Sept. 5, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 21.9 μg/m3 (71) 71.0
 
Sept. 5, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 22.7 μg/m3 (73) 73.0
 
Sept. 5, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A N/A 17.7 μg/m3 (62) 62.0
 
Sept. 5, 2019, noon N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A 15.9 μg/m3 (58) 58.0
 
Sept. 5, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A 13.9 μg/m3 (54) 54.0
 
Sept. 5, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A N/A 11.5 μg/m3 (48) 48.0
 
Sept. 5, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) N/A N/A 11.6 μg/m3 (48) 48.0
 
Sept. 5, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) N/A N/A 12.2 μg/m3 (50) 50.0
 
Sept. 5, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A N/A 10.2 μg/m3 (42) 42.0
 
Sept. 5, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A N/A 13.4 μg/m3 (53) 53.0
 
Sept. 5, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A N/A 14.3 μg/m3 (55) 55.0
 
Sept. 5, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A N/A 17.3 μg/m3 (61) 61.0
 
Sept. 5, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A N/A 20.4 μg/m3 (68) 68.0
 
Sept. 5, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 17.0 μg/m3 (61) 61.0
 
Sept. 5, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 21.9 μg/m3 (71) 71.0
 
Sept. 5, 2019, midnight N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 20.8 μg/m3 (69) 69.0
 
Sept. 4, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 17.4 μg/m3 (61) 61.0
 
Sept. 4, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 14.9 μg/m3 (56) 56.0
 
Sept. 4, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 13.4 μg/m3 (53) 53.0
 
Sept. 4, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (48) N/A N/A 12.7 μg/m3 (51) 51.0
 
Sept. 4, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (47) N/A N/A 11.9 μg/m3 (50) 50.0
 
Sept. 4, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A N/A 10.3 μg/m3 (43) 45.0
 
Sept. 4, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 10.6 μg/m3 (44) 44.0
 
Sept. 4, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 1.6 μg/m3 (7) 42.0
 
Sept. 4, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 3.3 μg/m3 (14) 29.0
 
Sept. 4, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 13.3 μg/m3 (53) 53.0
 
Sept. 4, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) N/A N/A 13.3 μg/m3 (53) 53.0
 
Sept. 4, 2019, noon N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A N/A 18.4 μg/m3 (64) 64.0
 
Sept. 4, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 12.1 μg/m3 (50) 50.0
 
Sept. 4, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A N/A 11.0 μg/m3 (46) 46.0
 
Sept. 4, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A N/A 11.5 μg/m3 (48) 48.0
 
Sept. 4, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A N/A 10.5 μg/m3 (44) 44.0
 
Sept. 4, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) N/A N/A 12.1 μg/m3 (50) 50.0
 
Sept. 4, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A N/A 15.1 μg/m3 (57) 57.0
 
Sept. 4, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A N/A 16.2 μg/m3 (59) 59.0