ID: 1327

AQSQID: 380171004

Site Name: Fargo Nw

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

Updated: Aug. 1, 2021, 4:54 a.m.

Location: Fargo (40th Ave N), ND

Reporting: False, Located: True

Current AQI: None

Fargo (40th Ave N) ND, US: 46.933601, -96.854698

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 22, 2021, 1 p.m. 4.2 ppb (4) 1.4 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 39.0 ppb (37) N/A N/A 19.3 μg/m3 (67) 67.0
 
July 22, 2021, noon 3.7 ppb (4) 1.2 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 39.0 ppb (37) N/A N/A 18.3 μg/m3 (65) 65.0
 
July 22, 2021, 11 a.m. 2.9 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 40.0 ppb (38) N/A N/A 17.6 μg/m3 (63) 63.0
 
July 22, 2021, 10 a.m. 2.8 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 40.0 ppb (38) N/A N/A 17.1 μg/m3 (62) 62.0
 
July 22, 2021, 9 a.m. 2.4 ppb (3) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 43.0 ppb (40) N/A N/A 17.3 μg/m3 (62) 62.0
 
July 22, 2021, 8 a.m. 2.3 ppb (3) 0.9 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 45.0 ppb (42) N/A N/A 16.9 μg/m3 (62) 62.0
 
July 22, 2021, 7 a.m. 2.2 ppb (3) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 45.0 ppb (42) N/A N/A 18.4 μg/m3 (65) 65.0
 
July 22, 2021, 6 a.m. 2.1 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 44.0 ppb (41) N/A N/A 15.8 μg/m3 (59) 59.0
 
July 22, 2021, 5 a.m. 2.0 ppb (2) 0.9 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 44.0 ppb (41) N/A N/A 14.4 μg/m3 (56) 56.0
 
July 22, 2021, 4 a.m. 2.2 ppb (3) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 45.0 ppb (42) N/A N/A 14.0 μg/m3 (55) 55.0
 
July 22, 2021, 3 a.m. 2.2 ppb (3) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 45.0 ppb (42) N/A N/A 13.2 μg/m3 (54) 54.0
 
July 22, 2021, 2 a.m. 2.2 ppb (3) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 47.0 ppb (44) N/A N/A 13.0 μg/m3 (53) 53.0
 
July 22, 2021, 1 a.m. 2.6 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 47.0 ppb (44) N/A N/A 12.5 μg/m3 (52) 52.0
 
July 22, 2021, midnight 2.5 ppb (3) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 47.0 ppb (44) N/A N/A 12.0 μg/m3 (50) 50.0
 
July 21, 2021, 11 p.m. 2.9 ppb (3) 1.2 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 49.0 ppb (46) N/A N/A 11.7 μg/m3 (49) 49.0
 
July 21, 2021, 10 p.m. 2.6 ppb (3) 1.1 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 51.0 ppb (48) N/A N/A 11.5 μg/m3 (48) 48.0
 
July 21, 2021, 9 p.m. 2.0 ppb (2) 1.1 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 56.0 ppb (55) N/A N/A 11.3 μg/m3 (48) 55.0
 
July 21, 2021, 8 p.m. 3.1 ppb (3) 1.4 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 49.0 ppb (46) N/A N/A 21.7 μg/m3 (72) 72.0
 
July 21, 2021, 7 p.m. 3.6 ppb (4) 1.5 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 43.0 ppb (40) N/A N/A 30.3 μg/m3 (90) 90.0
 
July 21, 2021, 6 p.m. 2.9 ppb (3) 1.3 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 42.0 ppb (39) N/A N/A 31.5 μg/m3 (92) 92.0
 
July 21, 2021, 5 p.m. 3.4 ppb (4) 1.2 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 40.0 ppb (38) N/A N/A 34.9 μg/m3 (99) 99.0
 
July 21, 2021, 4 p.m. 5.9 ppb (6) 1.9 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 30.0 ppb (28) N/A N/A 49.6 μg/m3 (136) 136.0
 
July 21, 2021, 3 p.m. 4.2 ppb (4) 1.3 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 28.0 ppb (26) N/A N/A 54.7 μg/m3 (149) 149.0
 
July 21, 2021, 2 p.m. 4.6 ppb (5) 1.2 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 23.0 ppb (22) N/A N/A 72.7 μg/m3 (160) 160.0
 
July 21, 2021, 1 p.m. 5.1 ppb (5) 1.2 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 22.0 ppb (21) N/A N/A 99.0 μg/m3 (174) 174.0
 
July 21, 2021, noon 5.8 ppb (6) 1.1 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 22.0 ppb (21) N/A N/A 124.3 μg/m3 (187) 187.0
 
July 21, 2021, 11 a.m. 5.7 ppb (6) 0.9 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 24.0 ppb (23) N/A N/A 142.7 μg/m3 (197) 197.0
 
July 21, 2021, 10 a.m. 4.1 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 29.0 ppb (27) N/A N/A 155.9 μg/m3 (207) 207.0
 
July 21, 2021, 9 a.m. 4.0 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 178.2 μg/m3 (229) 229.0
 
July 21, 2021, 8 a.m. 3.2 ppb (4) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 191.4 μg/m3 (242) 242.0
 
July 21, 2021, 7 a.m. 4.4 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 33.0 ppb (31) N/A N/A 203.7 μg/m3 (254) 254.0
 
July 21, 2021, 6 a.m. 3.0 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 219.0 μg/m3 (269) 269.0
 
July 21, 2021, 5 a.m. 3.0 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 236.3 μg/m3 (287) 287.0
 
July 21, 2021, 4 a.m. 3.3 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 27.0 ppb (25) N/A N/A 170.0 μg/m3 (221) 221.0
 
July 21, 2021, 3 a.m. 3.4 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 26.0 ppb (25) N/A N/A 44.7 μg/m3 (124) 124.0
 
July 21, 2021, 2 a.m. 3.8 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 30.0 ppb (28) N/A N/A 23.0 μg/m3 (74) 74.0
 
July 21, 2021, 1 a.m. 6.4 ppb (7) 0.8 ppb (1) N/A 6.0 ppb (6) N/A 2.0 ppb (3) 27.0 ppb (25) N/A N/A 22.5 μg/m3 (73) 73.0
 
July 21, 2021, midnight 6.0 ppb (6) 0.9 ppb (1) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 32.0 ppb (30) N/A N/A 21.5 μg/m3 (71) 71.0
 
July 20, 2021, 11 p.m. 7.4 ppb (7) 1.3 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 21.1 μg/m3 (70) 70.0
 
July 20, 2021, 10 p.m. 8.0 ppb (8) 1.6 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 39.0 ppb (37) N/A N/A 19.5 μg/m3 (67) 67.0
 
July 20, 2021, 9 p.m. 3.8 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 43.0 ppb (40) N/A N/A 18.9 μg/m3 (66) 66.0
 
July 20, 2021, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 43.0 ppb (40) N/A N/A 19.7 μg/m3 (67) 67.0
 
July 20, 2021, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 50.0 ppb (47) N/A N/A 22.3 μg/m3 (73) 73.0
 
July 20, 2021, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 53.0 ppb (50) N/A N/A N/A 50.0
 
July 20, 2021, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 44.0 ppb (41) N/A N/A N/A 41.0
 
July 20, 2021, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 31.0 ppb (29) N/A N/A N/A 29.0
 
July 20, 2021, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 28.0 ppb (26) N/A N/A N/A 26.0
 
July 20, 2021, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 20.0 ppb (19) N/A N/A N/A 19.0
 
July 20, 2021, 1 p.m. 12.8 ppb (13) 4.2 ppb (4) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 12.0 ppb (12) N/A N/A 52.7 μg/m3 (144) 144.0
 
July 20, 2021, noon 6.8 ppb (7) 1.7 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 8.0 ppb (8) N/A N/A 52.6 μg/m3 (144) 144.0
 
July 20, 2021, 11 a.m. 10.8 ppb (11) 2.1 ppb (2) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 5.0 ppb (5) N/A N/A 53.1 μg/m3 (145) 145.0
 
July 20, 2021, 10 a.m. 14.6 ppb (14) 2.3 ppb (3) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 6.0 ppb (6) N/A N/A 56.5 μg/m3 (152) 152.0
 
July 20, 2021, 9 a.m. 5.0 ppb (5) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 14.0 ppb (13) N/A N/A 58.2 μg/m3 (153) 153.0
 
July 20, 2021, 8 a.m. 3.5 ppb (4) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 20.0 ppb (19) N/A N/A 60.2 μg/m3 (154) 154.0
 
July 20, 2021, 7 a.m. 3.6 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 21.0 ppb (20) N/A N/A 57.9 μg/m3 (153) 153.0
 
July 20, 2021, 6 a.m. 3.0 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 31.0 ppb (29) N/A N/A 47.1 μg/m3 (130) 130.0
 
July 20, 2021, 5 a.m. 5.9 ppb (6) 0.3 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 27.0 ppb (25) N/A N/A 58.1 μg/m3 (153) 153.0
 
July 20, 2021, 4 a.m. 3.5 ppb (4) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 27.0 ppb (25) N/A N/A 64.7 μg/m3 (156) 156.0
 
July 20, 2021, 3 a.m. 2.8 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 33.0 ppb (31) N/A N/A 58.4 μg/m3 (153) 153.0
 
July 20, 2021, 2 a.m. 4.0 ppb (4) 0.3 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 30.0 ppb (28) N/A N/A 44.4 μg/m3 (123) 123.0
 
July 20, 2021, 1 a.m. 4.2 ppb (4) 0.3 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 33.0 ppb (31) N/A N/A 43.7 μg/m3 (122) 122.0
 
July 20, 2021, midnight 3.3 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 39.0 ppb (37) N/A N/A 45.0 μg/m3 (125) 125.0
 
July 19, 2021, 11 p.m. 2.7 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 42.0 ppb (39) N/A N/A 38.3 μg/m3 (108) 108.0
 
July 19, 2021, 10 p.m. 3.3 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 47.0 ppb (44) N/A N/A 37.7 μg/m3 (107) 107.0
 
July 19, 2021, 9 p.m. 4.0 ppb (4) 0.5 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 46.0 ppb (43) N/A N/A 38.2 μg/m3 (108) 108.0
 
July 19, 2021, 8 p.m. 4.1 ppb (4) 0.4 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 48.0 ppb (45) N/A N/A 45.1 μg/m3 (125) 125.0
 
July 19, 2021, 7 p.m. 2.5 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 48.0 ppb (45) N/A N/A 32.8 μg/m3 (95) 95.0
 
July 19, 2021, 6 p.m. 1.4 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 49.0 ppb (46) N/A N/A 17.6 μg/m3 (63) 63.0
 
July 19, 2021, 5 p.m. 1.0 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 47.0 ppb (44) N/A N/A 17.6 μg/m3 (63) 63.0
 
July 19, 2021, 4 p.m. 1.2 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 42.0 ppb (39) N/A N/A 18.3 μg/m3 (65) 65.0
 
July 19, 2021, 3 p.m. 1.7 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 18.7 μg/m3 (65) 65.0
 
July 19, 2021, 2 p.m. 1.8 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 31.0 ppb (29) N/A N/A 19.7 μg/m3 (67) 67.0
 
July 19, 2021, 1 p.m. 3.1 ppb (3) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 28.0 ppb (26) N/A N/A 21.9 μg/m3 (72) 72.0
 
July 19, 2021, noon 5.4 ppb (6) 0.5 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 25.0 ppb (24) N/A N/A 24.7 μg/m3 (78) 78.0
 
July 19, 2021, 11 a.m. 6.3 ppb (6) 0.2 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 22.0 ppb (21) N/A N/A 23.1 μg/m3 (75) 75.0
 
July 19, 2021, 10 a.m. 4.6 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 25.0 ppb (24) N/A N/A 23.4 μg/m3 (75) 75.0
 
July 19, 2021, 9 a.m. 3.2 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 27.0 ppb (25) N/A N/A 23.2 μg/m3 (75) 75.0
 
July 19, 2021, 8 a.m. 4.3 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 29.0 ppb (27) N/A N/A 23.1 μg/m3 (75) 75.0
 
July 19, 2021, 7 a.m. 3.3 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 33.0 ppb (31) N/A N/A 22.7 μg/m3 (74) 74.0
 
July 19, 2021, 6 a.m. 2.6 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 37.0 ppb (35) N/A N/A 22.1 μg/m3 (73) 73.0
 
July 19, 2021, 5 a.m. 3.5 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 38.0 ppb (36) N/A N/A 22.3 μg/m3 (73) 73.0
 
July 19, 2021, 4 a.m. 2.3 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 44.0 ppb (41) N/A N/A 22.5 μg/m3 (73) 73.0
 
July 19, 2021, 3 a.m. 2.5 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 44.0 ppb (41) N/A N/A 23.5 μg/m3 (75) 75.0
 
July 19, 2021, 2 a.m. 1.8 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 48.0 ppb (45) N/A N/A 23.0 μg/m3 (74) 74.0
 
July 19, 2021, 1 a.m. 1.3 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 50.0 ppb (47) N/A N/A 22.8 μg/m3 (74) 74.0
 
July 19, 2021, midnight 0.8 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 54.0 ppb (50) N/A N/A 22.1 μg/m3 (73) 73.0
 
July 18, 2021, 11 p.m. 0.7 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 55.0 ppb (51) N/A N/A 22.0 μg/m3 (72) 72.0
 
July 18, 2021, 10 p.m. 0.7 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 56.0 ppb (55) N/A N/A 22.4 μg/m3 (73) 73.0
 
July 18, 2021, 9 p.m. 0.6 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 58.0 ppb (61) N/A N/A 22.8 μg/m3 (74) 74.0
 
July 18, 2021, 8 p.m. 0.5 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 57.0 ppb (58) N/A N/A 24.0 μg/m3 (77) 77.0
 
July 18, 2021, 7 p.m. 0.6 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 56.0 ppb (55) N/A N/A 23.9 μg/m3 (76) 76.0
 
July 18, 2021, 6 p.m. 0.6 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 54.0 ppb (50) N/A N/A 24.0 μg/m3 (77) 77.0
 
July 18, 2021, 5 p.m. 0.6 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 53.0 ppb (50) N/A N/A 23.3 μg/m3 (75) 75.0
 
July 18, 2021, 4 p.m. 0.8 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 49.0 ppb (46) N/A N/A 21.9 μg/m3 (72) 72.0
 
July 18, 2021, 3 p.m. 1.3 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 20.7 μg/m3 (70) 70.0
 
July 18, 2021, 2 p.m. 1.8 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 33.0 ppb (31) N/A N/A 20.4 μg/m3 (69) 69.0
 
July 18, 2021, 1 p.m. 1.9 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 30.0 ppb (28) N/A N/A 20.0 μg/m3 (68) 68.0
 
July 18, 2021, noon 2.0 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 29.0 ppb (27) N/A N/A 19.0 μg/m3 (66) 66.0
 
July 18, 2021, 11 a.m. 2.2 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 25.0 ppb (24) N/A N/A 18.7 μg/m3 (65) 65.0
 
July 18, 2021, 10 a.m. 4.3 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 20.0 ppb (19) N/A N/A 19.1 μg/m3 (66) 66.0
 
July 18, 2021, 9 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 23.0 ppb (22) N/A N/A 19.0 μg/m3 (66) 66.0
 
July 18, 2021, 8 a.m. 2.6 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 25.0 ppb (24) N/A N/A 19.9 μg/m3 (68) 68.0
 
July 18, 2021, 7 a.m. 1.9 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 27.0 ppb (25) N/A N/A 21.1 μg/m3 (70) 70.0
 
July 18, 2021, 6 a.m. 5.5 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 23.0 ppb (22) N/A N/A 23.5 μg/m3 (75) 75.0
 
July 18, 2021, 5 a.m. 6.5 ppb (7) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 23.0 ppb (22) N/A N/A 25.0 μg/m3 (79) 79.0
 
July 18, 2021, 4 a.m. 9.5 ppb (9) 0.1 ppb (1) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 22.0 ppb (21) N/A N/A 23.4 μg/m3 (75) 75.0
 
July 18, 2021, 3 a.m. 2.4 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 31.0 μg/m3 (91) 91.0
 
July 18, 2021, 2 a.m. 1.8 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 38.0 ppb (36) N/A N/A 26.2 μg/m3 (81) 81.0
 
July 18, 2021, 1 a.m. 1.1 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 47.0 ppb (44) N/A N/A 28.9 μg/m3 (87) 87.0
 
July 18, 2021, midnight 0.9 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 53.0 ppb (50) N/A N/A 29.0 μg/m3 (87) 87.0
 
July 17, 2021, 11 p.m. 0.8 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 54.0 ppb (50) N/A N/A 28.7 μg/m3 (86) 86.0
 
July 17, 2021, 10 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 54.0 ppb (50) N/A N/A 28.7 μg/m3 (86) 86.0
 
July 17, 2021, 9 p.m. 0.8 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 50.0 ppb (47) N/A N/A 29.1 μg/m3 (87) 87.0
 
July 17, 2021, 8 p.m. 0.9 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 48.0 ppb (45) N/A N/A 28.4 μg/m3 (86) 86.0
 
July 17, 2021, 7 p.m. 0.9 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 46.0 ppb (43) N/A N/A 27.5 μg/m3 (84) 84.0
 
July 17, 2021, 6 p.m. 0.8 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 25.3 μg/m3 (79) 79.0
 
July 17, 2021, 5 p.m. 0.8 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 42.0 ppb (39) N/A N/A 21.6 μg/m3 (71) 71.0
 
July 17, 2021, 4 p.m. 0.9 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 39.0 ppb (37) N/A N/A 14.7 μg/m3 (57) 57.0
 
July 17, 2021, 3 p.m. 1.2 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 14.5 μg/m3 (57) 57.0
 
July 17, 2021, 2 p.m. 2.2 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 29.0 ppb (27) N/A N/A 14.7 μg/m3 (57) 57.0
 
July 17, 2021, 1 p.m. 2.4 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 25.0 ppb (24) N/A N/A 14.2 μg/m3 (56) 56.0
 
July 17, 2021, noon 3.8 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 19.0 ppb (18) N/A N/A 15.3 μg/m3 (58) 58.0
 
July 17, 2021, 11 a.m. 4.1 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 14.0 ppb (13) N/A N/A 17.3 μg/m3 (62) 62.0
 
July 17, 2021, 10 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 15.0 ppb (14) N/A N/A 19.1 μg/m3 (66) 66.0
 
July 17, 2021, 9 a.m. 2.7 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 17.0 ppb (16) N/A N/A 19.7 μg/m3 (67) 67.0
 
July 17, 2021, 8 a.m. 2.7 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 18.0 ppb (17) N/A N/A 20.4 μg/m3 (69) 69.0
 
July 17, 2021, 7 a.m. 2.2 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 22.0 ppb (21) N/A N/A 22.6 μg/m3 (74) 74.0
 
July 17, 2021, 6 a.m. 4.4 ppb (5) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 22.0 ppb (21) N/A N/A 25.1 μg/m3 (79) 79.0
 
July 17, 2021, 5 a.m. 2.1 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 30.0 ppb (28) N/A N/A 25.9 μg/m3 (81) 81.0
 
July 17, 2021, 4 a.m. 2.8 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 28.0 ppb (26) N/A N/A 33.9 μg/m3 (97) 97.0
 
July 17, 2021, 3 a.m. 2.9 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 36.2 μg/m3 (103) 103.0
 
July 17, 2021, 2 a.m. 2.1 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 36.0 ppb (34) N/A N/A 37.6 μg/m3 (107) 107.0
 
July 17, 2021, 1 a.m. 1.3 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 41.0 ppb (38) N/A N/A 38.2 μg/m3 (108) 108.0
 
July 17, 2021, midnight 1.1 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 45.0 ppb (42) N/A N/A 39.0 μg/m3 (110) 110.0
 
July 16, 2021, 11 p.m. 1.1 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 48.0 ppb (45) N/A N/A 40.9 μg/m3 (115) 115.0
 
July 16, 2021, 10 p.m. 1.2 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 51.0 ppb (48) N/A N/A 41.5 μg/m3 (116) 116.0
 
July 16, 2021, 9 p.m. 1.1 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 52.0 ppb (49) N/A N/A 44.9 μg/m3 (125) 125.0
 
July 16, 2021, 8 p.m. 1.1 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 52.0 ppb (49) N/A N/A 48.0 μg/m3 (132) 132.0
 
July 16, 2021, 7 p.m. 1.2 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 52.0 ppb (49) N/A N/A 59.4 μg/m3 (154) 154.0
 
July 16, 2021, 6 p.m. 1.3 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 50.0 ppb (47) N/A N/A 58.5 μg/m3 (153) 153.0
 
July 16, 2021, 5 p.m. 1.2 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 50.0 ppb (47) N/A N/A 58.9 μg/m3 (153) 153.0
 
July 16, 2021, 4 p.m. 1.5 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 50.0 ppb (47) N/A N/A 64.2 μg/m3 (156) 156.0
 
July 16, 2021, 3 p.m. 2.5 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 43.0 ppb (40) N/A N/A 66.3 μg/m3 (157) 157.0
 
July 16, 2021, 2 p.m. 3.7 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 36.0 ppb (34) N/A N/A 69.7 μg/m3 (159) 159.0
 
July 16, 2021, 1 p.m. 5.9 ppb (6) 1.4 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 28.0 ppb (26) N/A N/A 72.0 μg/m3 (160) 160.0
 
July 16, 2021, noon 7.1 ppb (7) 1.2 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 18.0 ppb (17) N/A N/A 71.4 μg/m3 (160) 160.0
 
July 16, 2021, 11 a.m. 7.0 ppb (7) 0.7 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 14.0 ppb (13) N/A N/A 71.7 μg/m3 (160) 160.0
 
July 16, 2021, 10 a.m. 4.2 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 17.0 ppb (16) N/A N/A 69.5 μg/m3 (159) 159.0
 
July 16, 2021, 9 a.m. 3.5 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 22.0 ppb (21) N/A N/A 64.0 μg/m3 (156) 156.0
 
July 16, 2021, 8 a.m. 3.5 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 30.0 ppb (28) N/A N/A 65.0 μg/m3 (156) 156.0
 
July 16, 2021, 7 a.m. 3.9 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 33.0 ppb (31) N/A N/A 62.3 μg/m3 (155) 155.0
 
July 16, 2021, 6 a.m. 4.3 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 37.0 ppb (35) N/A N/A 59.4 μg/m3 (154) 154.0
 
July 16, 2021, 5 a.m. 3.8 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 40.0 ppb (38) N/A N/A 57.2 μg/m3 (152) 152.0
 
July 16, 2021, 4 a.m. 4.6 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 47.6 μg/m3 (131) 131.0
 
July 16, 2021, 3 a.m. 5.1 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 31.0 ppb (29) N/A N/A 42.0 μg/m3 (118) 118.0
 
July 16, 2021, 2 a.m. 3.5 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 36.0 ppb (34) N/A N/A 43.0 μg/m3 (120) 120.0
 
July 16, 2021, 1 a.m. 5.8 ppb (6) 0.2 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 37.0 ppb (35) N/A N/A 45.8 μg/m3 (127) 127.0
 
July 16, 2021, midnight 1.4 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 52.0 ppb (49) N/A N/A 56.0 μg/m3 (152) 152.0
 
July 15, 2021, 11 p.m. 0.9 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 56.0 ppb (55) N/A N/A 60.0 μg/m3 (154) 154.0
 
July 15, 2021, 10 p.m. 0.9 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 56.0 ppb (55) N/A N/A 58.5 μg/m3 (153) 153.0
 
July 15, 2021, 9 p.m. 1.1 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 55.0 ppb (51) N/A N/A 62.1 μg/m3 (155) 155.0
 
July 15, 2021, 8 p.m. 1.5 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 55.0 ppb (51) N/A N/A 65.4 μg/m3 (157) 157.0
 
July 15, 2021, 7 p.m. 1.8 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 56.0 ppb (55) N/A N/A 75.3 μg/m3 (162) 162.0
 
July 15, 2021, 6 p.m. 3.0 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 58.0 ppb (61) N/A N/A 88.5 μg/m3 (169) 169.0
 
July 15, 2021, 5 p.m. 2.6 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 59.0 ppb (65) N/A N/A 99.9 μg/m3 (174) 174.0
 
July 15, 2021, 4 p.m. 5.3 ppb (5) 0.7 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 52.0 ppb (49) N/A N/A 116.8 μg/m3 (183) 183.0
 
July 15, 2021, 3 p.m. 11.6 ppb (11) 2.4 ppb (3) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 37.0 ppb (35) N/A N/A 120.1 μg/m3 (185) 185.0
 
July 15, 2021, 2 p.m. 14.2 ppb (14) 3.8 ppb (4) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 25.0 ppb (24) N/A N/A 117.4 μg/m3 (183) 183.0