ID: 1413

AQSQID: 380130004

Site Name: Lostwood Nwr

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

Updated: July 25, 2021, 8:55 a.m.

Location: Kenmare (N Dakota Hwy 8), ND

Reporting: True, Located: True

Current AQI: 81.0

Kenmare (N Dakota Hwy 8) ND, US: 48.641899, -102.402199

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 25, 2021, 6 a.m. 1.4 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 28.0 ppb (26) N/A N/A 26.3 μg/m3 (81) 81.0
 
July 25, 2021, 5 a.m. 1.5 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 33.0 ppb (31) N/A N/A 26.3 μg/m3 (81) 81.0
 
July 25, 2021, 4 a.m. 1.4 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 30.0 μg/m3 (89) 89.0
 
July 25, 2021, 3 a.m. 1.4 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 36.0 ppb (34) N/A N/A 26.5 μg/m3 (82) 82.0
 
July 25, 2021, 2 a.m. 1.3 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A 26.8 μg/m3 (82) 82.0
 
July 25, 2021, 1 a.m. 1.3 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (38) N/A N/A 26.5 μg/m3 (82) 82.0
 
July 25, 2021, midnight 1.1 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 47.0 ppb (44) N/A N/A 25.7 μg/m3 (80) 80.0
 
July 24, 2021, 11 p.m. 1.1 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 50.0 ppb (47) N/A N/A 25.5 μg/m3 (80) 80.0
 
July 24, 2021, 10 p.m. 1.1 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 49.0 ppb (46) N/A N/A 23.9 μg/m3 (76) 76.0
 
July 24, 2021, 9 p.m. 1.1 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 47.0 ppb (44) N/A N/A 19.6 μg/m3 (67) 67.0
 
July 24, 2021, 8 p.m. 1.0 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 46.0 ppb (43) N/A N/A 14.6 μg/m3 (57) 57.0
 
July 24, 2021, 7 p.m. 1.0 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 44.0 ppb (41) N/A N/A 10.3 μg/m3 (43) 43.0
 
July 24, 2021, 6 p.m. 0.9 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A 6.6 μg/m3 (28) 39.0
 
July 24, 2021, 5 p.m. 0.9 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (38) N/A N/A 5.3 μg/m3 (23) 38.0
 
July 24, 2021, 4 p.m. 1.0 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 44.0 ppb (41) N/A N/A 5.5 μg/m3 (23) 41.0
 
July 24, 2021, 3 p.m. 3.8 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 6.0 ppb (9) 42.0 ppb (39) N/A N/A 5.2 μg/m3 (22) 39.0
 
July 24, 2021, 2 p.m. 3.7 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 6.0 ppb (9) 39.0 ppb (37) N/A N/A 6.5 μg/m3 (28) 37.0
 
July 24, 2021, 1 p.m. 1.9 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 33.0 ppb (31) N/A N/A 20.5 μg/m3 (69) 69.0
 
July 24, 2021, noon 1.5 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 36.0 ppb (34) N/A N/A 28.8 μg/m3 (87) 87.0
 
July 24, 2021, 11 a.m. 1.6 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 33.0 ppb (31) N/A N/A 28.0 μg/m3 (85) 85.0
 
July 24, 2021, 10 a.m. 1.4 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 27.8 μg/m3 (85) 85.0
 
July 24, 2021, 9 a.m. 1.3 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 27.1 μg/m3 (83) 83.0
 
July 24, 2021, 8 a.m. 1.4 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 26.0 ppb (25) N/A N/A 26.3 μg/m3 (81) 81.0
 
July 24, 2021, 7 a.m. 1.4 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 31.0 ppb (29) N/A N/A 27.4 μg/m3 (84) 84.0
 
July 24, 2021, 6 a.m. 1.5 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 36.0 ppb (34) N/A N/A 28.5 μg/m3 (86) 86.0
 
July 24, 2021, 5 a.m. 1.5 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 39.0 ppb (37) N/A N/A 27.2 μg/m3 (83) 83.0
 
July 24, 2021, 4 a.m. 1.6 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 37.0 ppb (35) N/A N/A 25.2 μg/m3 (79) 79.0
 
July 24, 2021, 3 a.m. 1.6 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 40.0 ppb (38) N/A N/A 24.6 μg/m3 (78) 78.0
 
July 24, 2021, 2 a.m. 1.5 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (38) N/A N/A 21.5 μg/m3 (71) 71.0
 
July 24, 2021, 1 a.m. 1.3 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 45.0 ppb (42) N/A N/A 21.5 μg/m3 (71) 71.0
 
July 24, 2021, midnight 1.2 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 52.0 ppb (49) N/A N/A 20.4 μg/m3 (69) 69.0
 
July 23, 2021, 11 p.m. 1.2 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 56.0 ppb (55) N/A N/A 20.1 μg/m3 (68) 68.0
 
July 23, 2021, 10 p.m. 1.5 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 60.0 ppb (68) N/A N/A 16.3 μg/m3 (60) 68.0
 
July 23, 2021, 9 p.m. 2.5 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 5.0 ppb (8) 59.0 ppb (65) N/A N/A 14.6 μg/m3 (57) 65.0
 
July 23, 2021, 8 p.m. 2.6 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 6.0 ppb (9) 57.0 ppb (58) N/A N/A 13.4 μg/m3 (54) 58.0
 
July 23, 2021, 7 p.m. 5.2 ppb (5) 1.2 ppb (2) N/A 4.0 ppb (4) N/A 9.0 ppb (13) 48.0 ppb (45) N/A N/A 14.8 μg/m3 (57) 57.0
 
July 23, 2021, 6 p.m. 3.9 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 6.0 ppb (9) 45.0 ppb (42) N/A N/A 16.2 μg/m3 (60) 60.0
 
July 23, 2021, 5 p.m. 1.9 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 41.0 ppb (38) N/A N/A 17.2 μg/m3 (62) 62.0
 
July 23, 2021, 4 p.m. 2.1 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 17.0 μg/m3 (62) 62.0
 
July 23, 2021, 3 p.m. 2.3 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 47.0 ppb (44) N/A N/A 13.7 μg/m3 (55) 55.0
 
July 23, 2021, 2 p.m. 2.5 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 49.0 ppb (46) N/A N/A 13.7 μg/m3 (55) 55.0
 
July 23, 2021, 1 p.m. 2.5 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A 12.3 μg/m3 (52) 52.0
 
July 23, 2021, noon 2.3 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 41.0 ppb (38) N/A N/A 11.5 μg/m3 (48) 48.0
 
July 23, 2021, 11 a.m. 2.1 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 41.0 ppb (38) N/A N/A 11.0 μg/m3 (46) 46.0
 
July 23, 2021, 10 a.m. 1.9 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 44.0 ppb (41) N/A N/A 11.2 μg/m3 (47) 47.0
 
July 23, 2021, 9 a.m. 1.8 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 44.0 ppb (41) N/A N/A 11.7 μg/m3 (49) 49.0
 
July 23, 2021, 8 a.m. 1.9 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 46.0 ppb (43) N/A N/A 12.9 μg/m3 (53) 53.0
 
July 23, 2021, 7 a.m. 1.6 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 50.0 ppb (47) N/A N/A 12.2 μg/m3 (52) 52.0
 
July 23, 2021, 6 a.m. 1.6 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 56.0 ppb (55) N/A N/A 13.3 μg/m3 (54) 55.0
 
July 23, 2021, 5 a.m. 1.6 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 60.0 ppb (68) N/A N/A 14.9 μg/m3 (57) 68.0
 
July 23, 2021, 4 a.m. 2.3 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 54.0 ppb (50) N/A N/A 19.2 μg/m3 (66) 66.0
 
July 23, 2021, 3 a.m. 1.8 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 56.0 ppb (55) N/A N/A 17.4 μg/m3 (63) 63.0
 
July 23, 2021, 2 a.m. 1.9 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 59.0 ppb (65) N/A N/A 16.0 μg/m3 (60) 65.0
 
July 23, 2021, 1 a.m. 2.1 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 56.0 ppb (55) N/A N/A 19.4 μg/m3 (67) 67.0
 
July 23, 2021, midnight 2.5 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 53.0 ppb (50) N/A N/A 22.6 μg/m3 (74) 74.0
 
July 22, 2021, 11 p.m. 1.4 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (38) N/A N/A 15.7 μg/m3 (59) 59.0
 
July 22, 2021, 10 p.m. 1.2 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 44.0 ppb (41) N/A N/A 15.7 μg/m3 (59) 59.0
 
July 22, 2021, 9 p.m. 1.1 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 49.0 ppb (46) N/A N/A 16.5 μg/m3 (61) 61.0
 
July 22, 2021, 8 p.m. 1.2 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 53.0 ppb (50) N/A N/A 16.2 μg/m3 (60) 60.0
 
July 22, 2021, 7 p.m. 1.2 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 56.0 ppb (55) N/A N/A 15.3 μg/m3 (58) 58.0
 
July 22, 2021, 6 p.m. 1.3 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 52.0 ppb (49) N/A N/A 15.1 μg/m3 (58) 58.0
 
July 22, 2021, 5 p.m. 1.3 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 52.0 ppb (49) N/A N/A 14.0 μg/m3 (55) 55.0
 
July 22, 2021, 4 p.m. 1.4 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 47.0 ppb (44) N/A N/A 12.2 μg/m3 (52) 52.0
 
July 22, 2021, 3 p.m. 1.6 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (38) N/A N/A 11.1 μg/m3 (47) 47.0
 
July 22, 2021, 2 p.m. 1.9 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 9.6 μg/m3 (40) 40.0
 
July 22, 2021, 1 p.m. 1.8 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 8.7 μg/m3 (37) 37.0
 
July 22, 2021, noon 1.7 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 7.7 μg/m3 (33) 33.0
 
July 22, 2021, 11 a.m. 1.4 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A 6.5 μg/m3 (28) 28.0
 
July 22, 2021, 10 a.m. 1.5 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 6.3 μg/m3 (27) 27.0
 
July 22, 2021, 9 a.m. 1.6 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A 7.4 μg/m3 (31) 31.0
 
July 22, 2021, 8 a.m. 1.7 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 9.1 μg/m3 (38) 38.0
 
July 22, 2021, 7 a.m. 1.8 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (27) N/A N/A 11.9 μg/m3 (50) 50.0
 
July 22, 2021, 6 a.m. 2.0 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 28.0 ppb (26) N/A N/A 12.0 μg/m3 (50) 50.0
 
July 22, 2021, 5 a.m. 2.2 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 12.2 μg/m3 (52) 52.0
 
July 22, 2021, 4 a.m. 2.5 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 13.3 μg/m3 (54) 54.0
 
July 22, 2021, 3 a.m. 2.3 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 16.5 μg/m3 (61) 61.0
 
July 22, 2021, 2 a.m. 1.8 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 40.0 ppb (38) N/A N/A 18.4 μg/m3 (65) 65.0
 
July 22, 2021, 1 a.m. 1.6 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 47.0 ppb (44) N/A N/A 17.8 μg/m3 (63) 63.0
 
July 22, 2021, midnight 1.5 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 53.0 ppb (50) N/A N/A 18.6 μg/m3 (65) 65.0
 
July 21, 2021, 11 p.m. 1.7 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 55.0 ppb (51) N/A N/A 18.2 μg/m3 (64) 64.0
 
July 21, 2021, 10 p.m. 1.9 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 54.0 ppb (50) N/A N/A 16.5 μg/m3 (61) 61.0
 
July 21, 2021, 9 p.m. 1.8 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 53.0 ppb (50) N/A N/A 19.7 μg/m3 (67) 67.0
 
July 21, 2021, 8 p.m. 1.8 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 47.0 ppb (44) N/A N/A 21.2 μg/m3 (71) 71.0
 
July 21, 2021, 7 p.m. 1.8 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 44.0 ppb (41) N/A N/A 22.5 μg/m3 (73) 73.0
 
July 21, 2021, 6 p.m. 1.9 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (36) N/A N/A 24.7 μg/m3 (78) 78.0
 
July 21, 2021, 5 p.m. 1.9 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (36) N/A N/A 22.7 μg/m3 (74) 74.0
 
July 21, 2021, 4 p.m. 2.7 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A 15.8 μg/m3 (59) 59.0
 
July 21, 2021, 3 p.m. 3.1 ppb (3) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 44.0 ppb (41) N/A N/A 10.6 μg/m3 (45) 45.0
 
July 21, 2021, 2 p.m. 3.3 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 40.0 ppb (38) N/A N/A 11.3 μg/m3 (48) 48.0
 
July 21, 2021, 1 p.m. 2.8 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 40.0 ppb (38) N/A N/A 10.7 μg/m3 (45) 45.0
 
July 21, 2021, noon 2.1 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 41.0 ppb (38) N/A N/A 12.0 μg/m3 (50) 50.0
 
July 21, 2021, 11 a.m. 1.8 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 48.0 ppb (45) N/A N/A 15.0 μg/m3 (58) 58.0
 
July 21, 2021, 10 a.m. 1.5 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 55.0 ppb (51) N/A N/A 16.1 μg/m3 (60) 60.0
 
July 21, 2021, 9 a.m. 1.5 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 53.0 ppb (50) N/A N/A 13.6 μg/m3 (55) 55.0
 
July 21, 2021, 8 a.m. 1.5 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 48.0 ppb (45) N/A N/A 10.7 μg/m3 (45) 45.0
 
July 21, 2021, 7 a.m. 2.1 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 46.0 ppb (43) N/A N/A 11.2 μg/m3 (47) 47.0
 
July 21, 2021, 6 a.m. 1.9 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 46.0 ppb (43) N/A N/A 11.6 μg/m3 (49) 49.0
 
July 21, 2021, 5 a.m. 2.0 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 48.0 ppb (45) N/A N/A 13.4 μg/m3 (54) 54.0
 
July 21, 2021, 4 a.m. 2.7 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 13.8 μg/m3 (55) 55.0
 
July 21, 2021, 3 a.m. 2.3 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 13.5 μg/m3 (54) 54.0
 
July 21, 2021, 2 a.m. 2.3 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 13.1 μg/m3 (54) 54.0
 
July 21, 2021, 1 a.m. 2.2 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 12.8 μg/m3 (53) 53.0
 
July 21, 2021, midnight 2.3 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (33) N/A N/A 12.2 μg/m3 (52) 52.0
 
July 20, 2021, 11 p.m. 2.5 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (35) N/A N/A 12.9 μg/m3 (53) 53.0
 
July 20, 2021, 10 p.m. 2.1 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (37) N/A N/A 14.6 μg/m3 (57) 57.0
 
July 20, 2021, 9 p.m. 2.0 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 42.0 ppb (39) N/A N/A 14.4 μg/m3 (56) 56.0
 
July 20, 2021, 8 p.m. 2.0 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 48.0 ppb (45) N/A N/A 12.7 μg/m3 (53) 53.0
 
July 20, 2021, 7 p.m. 2.3 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 13.6 μg/m3 (55) 55.0
 
July 20, 2021, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 12.5 μg/m3 (52) 52.0
 
July 20, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
July 20, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A N/A N/A 49.0
 
July 20, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A N/A 40.0
 
July 20, 2021, 2 p.m. 3.2 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 38.0 ppb (36) N/A N/A 11.8 μg/m3 (50) 50.0
 
July 20, 2021, 1 p.m. 2.7 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 12.5 μg/m3 (52) 52.0
 
July 20, 2021, noon 2.5 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (33) N/A N/A 12.8 μg/m3 (53) 53.0
 
July 20, 2021, 11 a.m. 2.4 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (34) N/A N/A 13.7 μg/m3 (55) 55.0
 
July 20, 2021, 10 a.m. 2.0 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (36) N/A N/A 15.3 μg/m3 (58) 58.0
 
July 20, 2021, 9 a.m. 1.9 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (35) N/A N/A 16.8 μg/m3 (61) 61.0
 
July 20, 2021, 8 a.m. 1.9 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (33) N/A N/A 19.0 μg/m3 (66) 66.0
 
July 20, 2021, 7 a.m. 1.9 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (34) N/A N/A 21.4 μg/m3 (71) 71.0
 
July 20, 2021, 6 a.m. 2.0 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (27) N/A N/A 26.7 μg/m3 (82) 82.0
 
July 20, 2021, 5 a.m. 2.4 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 31.5 μg/m3 (92) 92.0
 
July 20, 2021, 4 a.m. 2.4 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A 36.7 μg/m3 (104) 104.0
 
July 20, 2021, 3 a.m. 2.6 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 41.8 μg/m3 (117) 117.0
 
July 20, 2021, 2 a.m. 2.4 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 42.7 μg/m3 (119) 119.0
 
July 20, 2021, 1 a.m. 2.0 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 42.2 μg/m3 (118) 118.0
 
July 20, 2021, midnight 1.9 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (37) N/A N/A 43.1 μg/m3 (120) 120.0
 
July 19, 2021, 11 p.m. 1.8 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 44.9 μg/m3 (125) 125.0
 
July 19, 2021, 10 p.m. 1.9 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 43.2 μg/m3 (120) 120.0
 
July 19, 2021, 9 p.m. 2.2 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 25.6 μg/m3 (80) 80.0
 
July 19, 2021, 8 p.m. 2.5 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 13.9 μg/m3 (55) 55.0
 
July 19, 2021, 7 p.m. 2.7 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 16.2 μg/m3 (60) 60.0
 
July 19, 2021, 6 p.m. 2.9 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 14.8 μg/m3 (57) 57.0
 
July 19, 2021, 5 p.m. 3.0 ppb (3) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) N/A N/A N/A 14.4 μg/m3 (56) 56.0
 
July 19, 2021, 4 p.m. 3.0 ppb (3) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 57.0 ppb (58) N/A N/A 15.8 μg/m3 (59) 59.0
 
July 19, 2021, 3 p.m. 3.4 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 50.0 ppb (47) N/A N/A 16.2 μg/m3 (60) 60.0
 
July 19, 2021, 2 p.m. 3.9 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 37.0 ppb (35) N/A N/A 17.9 μg/m3 (64) 64.0
 
July 19, 2021, 1 p.m. 4.2 ppb (4) 0.7 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 27.0 ppb (25) N/A N/A 17.2 μg/m3 (62) 62.0
 
July 19, 2021, noon 3.7 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A 15.7 μg/m3 (59) 59.0
 
July 19, 2021, 11 a.m. 3.8 ppb (4) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 15.6 μg/m3 (59) 59.0
 
July 19, 2021, 10 a.m. 3.7 ppb (4) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (30) N/A N/A 15.7 μg/m3 (59) 59.0
 
July 19, 2021, 9 a.m. 3.8 ppb (4) 0.3 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 36.0 ppb (34) N/A N/A 16.3 μg/m3 (60) 60.0
 
July 19, 2021, 8 a.m. 3.8 ppb (4) 0.3 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 36.0 ppb (34) N/A N/A 17.5 μg/m3 (63) 63.0
 
July 19, 2021, 7 a.m. 3.8 ppb (4) 0.3 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 37.0 ppb (35) N/A N/A 16.7 μg/m3 (61) 61.0
 
July 19, 2021, 6 a.m. 3.3 ppb (4) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 40.0 ppb (38) N/A N/A 16.5 μg/m3 (61) 61.0
 
July 19, 2021, 5 a.m. 3.1 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 44.0 ppb (41) N/A N/A 15.7 μg/m3 (59) 59.0
 
July 19, 2021, 4 a.m. 2.5 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 48.0 ppb (45) N/A N/A 15.0 μg/m3 (58) 58.0
 
July 19, 2021, 3 a.m. 2.2 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 50.0 ppb (47) N/A N/A 14.9 μg/m3 (57) 57.0
 
July 19, 2021, 2 a.m. 1.9 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A 16.1 μg/m3 (60) 60.0
 
July 19, 2021, 1 a.m. 1.7 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 44.0 ppb (41) N/A N/A 17.4 μg/m3 (63) 63.0
 
July 19, 2021, midnight 1.6 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 52.0 ppb (49) N/A N/A 18.9 μg/m3 (66) 66.0
 
July 18, 2021, 11 p.m. 1.5 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 59.0 ppb (65) N/A N/A 16.5 μg/m3 (61) 65.0
 
July 18, 2021, 10 p.m. 1.4 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 61.0 ppb (71) N/A N/A 14.6 μg/m3 (57) 71.0
 
July 18, 2021, 9 p.m. 1.4 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 64.0 ppb (81) N/A N/A 12.8 μg/m3 (53) 81.0
 
July 18, 2021, 8 p.m. 1.4 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 63.0 ppb (78) N/A N/A 12.6 μg/m3 (53) 78.0
 
July 18, 2021, 7 p.m. 1.6 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 65.0 ppb (84) N/A N/A 11.2 μg/m3 (47) 84.0
 
July 18, 2021, 6 p.m. 1.7 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 62.0 ppb (74) N/A N/A 10.4 μg/m3 (44) 74.0
 
July 18, 2021, 5 p.m. 1.7 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 59.0 ppb (65) N/A N/A 9.8 μg/m3 (41) 65.0
 
July 18, 2021, 4 p.m. 1.9 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 53.0 ppb (50) N/A N/A 10.1 μg/m3 (43) 50.0
 
July 18, 2021, 3 p.m. 2.4 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 46.0 ppb (43) N/A N/A 10.3 μg/m3 (43) 43.0
 
July 18, 2021, 2 p.m. 2.5 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (37) N/A N/A 10.9 μg/m3 (46) 46.0
 
July 18, 2021, 1 p.m. 2.7 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 11.7 μg/m3 (49) 49.0
 
July 18, 2021, noon 2.9 ppb (3) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 12.1 μg/m3 (51) 51.0
 
July 18, 2021, 11 a.m. 3.0 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 12.1 μg/m3 (51) 51.0
 
July 18, 2021, 10 a.m. 2.8 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 12.7 μg/m3 (53) 53.0
 
July 18, 2021, 9 a.m. 2.8 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 13.1 μg/m3 (54) 54.0
 
July 18, 2021, 8 a.m. 2.9 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 13.9 μg/m3 (55) 55.0
 
July 18, 2021, 7 a.m. 2.8 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 14.4 μg/m3 (56) 56.0