ID: 1327

AQSQID: 380171004

Site Name: Fargo Nw

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

Updated: April 11, 2021, 7:41 a.m.

Location: Fargo (40th Ave N), ND

Reporting: True, Located: True

Current AQI: 47.0

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
April 4, 2021, 4 a.m. 2.8 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 36.0 ppb (34) N/A N/A 6.5 μg/m3 (28) 34.0
 
April 4, 2021, 3 a.m. 3.8 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (33) N/A N/A 6.7 μg/m3 (28) 33.0
 
April 4, 2021, 2 a.m. 6.5 ppb (7) 0.2 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 35.0 ppb (33) N/A N/A 6.2 μg/m3 (26) 33.0
 
April 4, 2021, 1 a.m. 8.1 ppb (8) 0.2 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 5.8 μg/m3 (25) 31.0
 
April 4, 2021, midnight 3.0 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 45.0 ppb (42) N/A N/A 5.7 μg/m3 (24) 42.0
 
April 3, 2021, 11 p.m. 2.7 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 51.0 ppb (48) N/A N/A 5.7 μg/m3 (24) 48.0
 
April 3, 2021, 10 p.m. 2.7 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 52.0 ppb (49) N/A N/A 5.7 μg/m3 (24) 49.0
 
April 3, 2021, 9 p.m. 2.5 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 52.0 ppb (49) N/A N/A 5.7 μg/m3 (24) 49.0
 
April 3, 2021, 8 p.m. 1.9 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 51.0 ppb (48) N/A N/A 5.7 μg/m3 (24) 48.0
 
April 3, 2021, 7 p.m. 1.8 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 49.0 ppb (46) N/A N/A 5.7 μg/m3 (24) 46.0
 
April 3, 2021, 6 p.m. 2.8 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 47.0 ppb (44) N/A N/A 5.9 μg/m3 (25) 44.0
 
April 3, 2021, 5 p.m. 3.9 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 6.1 μg/m3 (26) 40.0
 
April 3, 2021, 4 p.m. 4.3 ppb (5) 1.1 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 39.0 ppb (37) N/A N/A 6.1 μg/m3 (26) 37.0
 
April 3, 2021, 3 p.m. 5.1 ppb (5) 1.4 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 7.0 μg/m3 (30) 32.0
 
April 3, 2021, 2 p.m. 4.8 ppb (5) 1.5 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 25.0 ppb (24) N/A N/A 9.7 μg/m3 (41) 41.0
 
April 3, 2021, 1 p.m. 4.0 ppb (4) 1.1 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 9.7 μg/m3 (41) 41.0
 
April 3, 2021, noon 7.9 ppb (8) 1.9 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 11.0 ppb (11) N/A N/A 12.0 μg/m3 (50) 50.0
 
April 3, 2021, 11 a.m. 7.1 ppb (7) 0.1 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 12.0 ppb (12) N/A N/A 9.8 μg/m3 (41) 41.0
 
April 3, 2021, 10 a.m. 12.5 ppb (12) 3.9 ppb (4) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 13.0 ppb (13) N/A N/A 8.9 μg/m3 (38) 38.0
 
April 3, 2021, 9 a.m. 11.8 ppb (12) 2.1 ppb (2) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 14.0 ppb (13) N/A N/A 8.8 μg/m3 (37) 37.0
 
April 3, 2021, 8 a.m. 5.2 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A 8.9 μg/m3 (38) 38.0
 
April 3, 2021, 7 a.m. 2.1 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A 8.7 μg/m3 (37) 37.0
 
April 3, 2021, 6 a.m. 2.6 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A 9.6 μg/m3 (40) 40.0
 
April 3, 2021, 5 a.m. 5.7 ppb (6) 0.4 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 21.0 ppb (20) N/A N/A 9.9 μg/m3 (42) 42.0
 
April 3, 2021, 4 a.m. 6.8 ppb (7) 0.6 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 20.0 ppb (19) N/A N/A 9.7 μg/m3 (41) 41.0
 
April 3, 2021, 3 a.m. 6.2 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 26.0 ppb (25) N/A N/A 9.0 μg/m3 (38) 38.0
 
April 3, 2021, 2 a.m. 5.7 ppb (6) 1.2 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 15.8 μg/m3 (59) 59.0
 
April 3, 2021, 1 a.m. 4.5 ppb (5) 0.3 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 37.0 ppb (35) N/A N/A 18.6 μg/m3 (65) 65.0
 
April 3, 2021, midnight 4.9 ppb (5) 0.2 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 44.0 ppb (41) N/A N/A 30.8 μg/m3 (91) 91.0
 
April 2, 2021, 11 p.m. 4.8 ppb (5) 0.2 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 49.0 ppb (46) N/A N/A 33.0 μg/m3 (95) 95.0
 
April 2, 2021, 10 p.m. 4.1 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 52.0 ppb (49) N/A N/A 31.4 μg/m3 (92) 92.0
 
April 2, 2021, 9 p.m. 4.0 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 51.0 ppb (48) N/A N/A 32.1 μg/m3 (94) 94.0
 
April 2, 2021, 8 p.m. 3.9 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 50.0 ppb (47) N/A N/A 29.9 μg/m3 (89) 89.0
 
April 2, 2021, 7 p.m. 4.2 ppb (4) 0.3 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 49.0 ppb (46) N/A N/A 32.1 μg/m3 (94) 94.0
 
April 2, 2021, 6 p.m. 4.7 ppb (5) 0.5 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 48.0 ppb (45) N/A N/A 34.4 μg/m3 (98) 98.0
 
April 2, 2021, 5 p.m. 4.6 ppb (5) 0.5 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 44.0 ppb (41) N/A N/A 34.8 μg/m3 (99) 99.0
 
April 2, 2021, 4 p.m. 4.9 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 38.0 ppb (36) N/A N/A 33.2 μg/m3 (96) 96.0
 
April 2, 2021, 3 p.m. 4.7 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 30.9 μg/m3 (91) 91.0
 
April 2, 2021, 2 p.m. 4.3 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 25.4 μg/m3 (79) 79.0
 
April 2, 2021, 1 p.m. 4.2 ppb (4) 0.5 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (26) N/A N/A 22.1 μg/m3 (73) 73.0
 
April 2, 2021, noon 3.8 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 27.0 ppb (25) N/A N/A 18.9 μg/m3 (66) 66.0
 
April 2, 2021, 11 a.m. 3.4 ppb (4) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (25) N/A N/A 16.4 μg/m3 (61) 61.0
 
April 2, 2021, 10 a.m. 3.1 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (25) N/A N/A 14.5 μg/m3 (57) 57.0
 
April 2, 2021, 9 a.m. 2.8 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 28.0 ppb (26) N/A N/A 12.6 μg/m3 (53) 53.0
 
April 2, 2021, 8 a.m. 2.5 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (27) N/A N/A 10.9 μg/m3 (46) 46.0
 
April 2, 2021, 7 a.m. 2.6 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 10.0 μg/m3 (42) 42.0
 
April 2, 2021, 6 a.m. 2.5 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (30) N/A N/A 9.9 μg/m3 (42) 42.0
 
April 2, 2021, 5 a.m. 2.3 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 7.3 μg/m3 (31) 31.0
 
April 2, 2021, 4 a.m. 1.9 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 8.5 μg/m3 (36) 36.0
 
April 2, 2021, 3 a.m. 2.2 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (33) N/A N/A 6.9 μg/m3 (29) 33.0
 
April 2, 2021, 2 a.m. 2.6 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 35.0 ppb (33) N/A N/A 5.4 μg/m3 (23) 33.0
 
April 2, 2021, 1 a.m. 2.6 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (33) N/A N/A 5.7 μg/m3 (24) 33.0
 
April 2, 2021, midnight 2.6 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (36) N/A N/A 6.9 μg/m3 (29) 36.0
 
April 1, 2021, 11 p.m. 2.7 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (38) N/A N/A 8.4 μg/m3 (36) 38.0
 
April 1, 2021, 10 p.m. 2.5 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 7.1 μg/m3 (30) 38.0
 
April 1, 2021, 9 p.m. 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 6.8 μg/m3 (29) 38.0
 
April 1, 2021, 8 p.m. 2.2 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (38) N/A N/A 6.5 μg/m3 (28) 38.0
 
April 1, 2021, 7 p.m. 2.5 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (38) N/A N/A 6.3 μg/m3 (27) 38.0
 
April 1, 2021, 6 p.m. 2.2 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (38) N/A N/A 5.9 μg/m3 (25) 38.0
 
April 1, 2021, 5 p.m. 2.1 ppb (2) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (37) N/A N/A 5.7 μg/m3 (24) 37.0
 
April 1, 2021, 4 p.m. 2.7 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (34) N/A N/A 5.7 μg/m3 (24) 34.0
 
April 1, 2021, 3 p.m. 4.7 ppb (5) 1.6 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 5.5 μg/m3 (23) 29.0
 
April 1, 2021, 2 p.m. 7.9 ppb (8) 2.7 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 27.0 ppb (25) N/A N/A 5.8 μg/m3 (25) 25.0
 
April 1, 2021, 1 p.m. 14.0 ppb (14) 4.0 ppb (4) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 20.0 ppb (19) N/A N/A 5.6 μg/m3 (24) 24.0
 
April 1, 2021, noon 16.7 ppb (16) 2.1 ppb (2) N/A 15.0 ppb (15) N/A 0.0 ppb (0) 14.0 ppb (13) N/A N/A 5.6 μg/m3 (24) 24.0
 
April 1, 2021, 11 a.m. 13.4 ppb (13) 0.2 ppb (1) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 15.0 ppb (14) N/A N/A 5.2 μg/m3 (22) 22.0
 
April 1, 2021, 10 a.m. 8.1 ppb (8) 0.1 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A 5.1 μg/m3 (22) 22.0
 
April 1, 2021, 9 a.m. 8.0 ppb (8) 0.1 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A 6.0 μg/m3 (25) 25.0
 
April 1, 2021, 8 a.m. 8.3 ppb (8) 0.1 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 5.9 μg/m3 (25) 25.0
 
April 1, 2021, 7 a.m. 12.5 ppb (12) 0.1 ppb (1) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 5.6 μg/m3 (24) 24.0
 
April 1, 2021, 6 a.m. 22.6 ppb (22) 1.6 ppb (2) N/A 21.0 ppb (20) N/A 0.0 ppb (0) 9.0 ppb (9) N/A N/A 7.2 μg/m3 (31) 31.0
 
April 1, 2021, 5 a.m. 40.9 ppb (39) 10.6 ppb (10) N/A 30.0 ppb (29) N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 9.5 μg/m3 (40) 40.0
 
April 1, 2021, 4 a.m. 35.5 ppb (34) 7.5 ppb (8) N/A 28.0 ppb (27) N/A 0.0 ppb (0) 6.0 ppb (6) N/A N/A 12.0 μg/m3 (50) 50.0
 
April 1, 2021, 3 a.m. 13.9 ppb (14) 0.2 ppb (1) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A 12.1 μg/m3 (51) 51.0
 
April 1, 2021, 2 a.m. 24.4 ppb (24) 0.9 ppb (1) N/A 23.0 ppb (22) N/A 0.0 ppb (0) 13.0 ppb (13) N/A N/A 6.3 μg/m3 (27) 27.0
 
April 1, 2021, 1 a.m. 9.8 ppb (10) 1.1 ppb (2) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 28.0 ppb (26) N/A N/A 7.0 μg/m3 (30) 30.0
 
April 1, 2021, midnight 1.5 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (37) N/A N/A 3.9 μg/m3 (17) 37.0
 
March 31, 2021, 11 p.m. 1.0 ppb (1) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A 4.1 μg/m3 (18) 39.0
 
March 31, 2021, 10 p.m. 1.1 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A 4.6 μg/m3 (20) 39.0
 
March 31, 2021, 9 p.m. 1.0 ppb (1) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A 4.1 μg/m3 (18) 39.0
 
March 31, 2021, 8 p.m. 1.4 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (38) N/A N/A 3.9 μg/m3 (17) 38.0
 
March 31, 2021, 7 p.m. 1.3 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (38) N/A N/A 3.6 μg/m3 (16) 38.0
 
March 31, 2021, 6 p.m. 1.0 ppb (1) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (38) N/A N/A 3.7 μg/m3 (16) 38.0
 
March 31, 2021, 5 p.m. 0.8 ppb (1) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (38) N/A N/A 3.5 μg/m3 (15) 38.0
 
March 31, 2021, 4 p.m. 0.9 ppb (1) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (35) N/A N/A 3.5 μg/m3 (15) 35.0
 
March 31, 2021, 3 p.m. 1.6 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (33) N/A N/A 3.7 μg/m3 (16) 33.0
 
March 31, 2021, 2 p.m. 2.2 ppb (3) 0.8 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (30) N/A N/A 3.6 μg/m3 (16) 30.0
 
March 31, 2021, 1 p.m. 5.5 ppb (6) 2.2 ppb (3) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (27) N/A N/A 3.8 μg/m3 (16) 27.0
 
March 31, 2021, noon 3.2 ppb (4) 0.9 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 3.3 μg/m3 (14) 29.0
 
March 31, 2021, 11 a.m. 3.8 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (27) N/A N/A 3.6 μg/m3 (16) 27.0
 
March 31, 2021, 10 a.m. 2.1 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 4.1 μg/m3 (18) 29.0
 
March 31, 2021, 9 a.m. 1.4 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 4.1 μg/m3 (18) 29.0
 
March 31, 2021, 8 a.m. 2.0 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 4.3 μg/m3 (18) 28.0
 
March 31, 2021, 7 a.m. 3.8 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (27) N/A N/A 4.3 μg/m3 (18) 27.0
 
March 31, 2021, 6 a.m. 4.9 ppb (5) 1.1 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 27.0 ppb (25) N/A N/A 4.8 μg/m3 (20) 25.0
 
March 31, 2021, 5 a.m. 2.8 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 3.6 μg/m3 (16) 28.0
 
March 31, 2021, 4 a.m. 0.4 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 3.4 μg/m3 (15) 32.0
 
March 31, 2021, 3 a.m. 0.4 ppb (1) 0.1 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 35.0 ppb (33) N/A N/A 3.4 μg/m3 (15) 33.0
 
March 31, 2021, 2 a.m. 1.0 ppb (1) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 3.4 μg/m3 (15) 31.0
 
March 31, 2021, 1 a.m. 0.6 ppb (1) 0.2 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 32.0 ppb (30) N/A N/A 4.1 μg/m3 (18) 30.0
 
March 31, 2021, midnight 0.7 ppb (1) 0.4 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 4.8 μg/m3 (20) 31.0
 
March 30, 2021, 11 p.m. 0.7 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A 5.3 μg/m3 (23) 23.0
 
March 30, 2021, 10 p.m. 0.7 ppb (1) 0.2 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A N/A 6.2 μg/m3 (26) 26.0
 
March 30, 2021, 9 p.m. 0.6 ppb (1) 0.3 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 7.1 μg/m3 (30) 32.0
 
March 30, 2021, 8 p.m. 0.7 ppb (1) 0.4 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 8.5 μg/m3 (36) 36.0
 
March 30, 2021, 7 p.m. 0.9 ppb (1) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 11.8 μg/m3 (50) 50.0
 
March 30, 2021, 6 p.m. 0.9 ppb (1) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 11.4 μg/m3 (48) 48.0
 
March 30, 2021, 5 p.m. 0.8 ppb (1) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 8.9 μg/m3 (38) 38.0
 
March 30, 2021, 4 p.m. 0.9 ppb (1) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 10.5 μg/m3 (44) 44.0
 
March 30, 2021, 3 p.m. 0.8 ppb (1) 0.4 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 8.6 μg/m3 (36) 36.0
 
March 30, 2021, 2 p.m. 0.7 ppb (1) 0.3 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 9.2 μg/m3 (39) 39.0
 
March 30, 2021, 1 p.m. 0.8 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (30) N/A N/A 7.1 μg/m3 (30) 30.0
 
March 30, 2021, noon 1.0 ppb (1) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (30) N/A N/A 8.1 μg/m3 (34) 34.0
 
March 30, 2021, 11 a.m. 0.6 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 8.0 μg/m3 (34) 34.0
 
March 30, 2021, 10 a.m. 0.5 ppb (1) 0.1 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 32.0 ppb (30) N/A N/A 12.2 μg/m3 (52) 52.0
 
March 30, 2021, 9 a.m. 0.6 ppb (1) 0.1 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 32.0 ppb (30) N/A N/A 20.5 μg/m3 (69) 69.0
 
March 30, 2021, 8 a.m. 0.6 ppb (1) 0.1 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 32.0 ppb (30) N/A N/A 15.4 μg/m3 (58) 58.0
 
March 30, 2021, 7 a.m. 0.7 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (30) N/A N/A 11.2 μg/m3 (47) 47.0
 
March 30, 2021, 6 a.m. 0.8 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (30) N/A N/A 13.5 μg/m3 (54) 54.0
 
March 30, 2021, 5 a.m. 0.7 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 13.3 μg/m3 (54) 54.0
 
March 30, 2021, 4 a.m. 0.7 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (30) N/A N/A 26.3 μg/m3 (81) 81.0
 
March 30, 2021, 3 a.m. 0.9 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 32.6 μg/m3 (95) 95.0
 
March 30, 2021, 2 a.m. 1.1 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 29.8 μg/m3 (89) 89.0
 
March 30, 2021, 1 a.m. 1.6 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 45.0 ppb (42) N/A N/A 9.5 μg/m3 (40) 42.0
 
March 30, 2021, midnight 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 5.5 μg/m3 (23) 47.0
 
March 29, 2021, 11 p.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 4.5 μg/m3 (19) 45.0
 
March 29, 2021, 10 p.m. 2.9 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 41.0 ppb (38) N/A N/A 4.5 μg/m3 (19) 38.0
 
March 29, 2021, 9 p.m. 3.2 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 39.0 ppb (37) N/A N/A 4.5 μg/m3 (19) 37.0
 
March 29, 2021, 8 p.m. 2.4 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 4.5 μg/m3 (19) 38.0
 
March 29, 2021, 7 p.m. 2.5 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (36) N/A N/A 4.9 μg/m3 (21) 36.0
 
March 29, 2021, 6 p.m. 4.0 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 5.9 μg/m3 (25) 30.0
 
March 29, 2021, 5 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 29.0 ppb (27) N/A N/A 7.3 μg/m3 (31) 31.0
 
March 29, 2021, 4 p.m. 4.2 ppb (4) 1.2 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A 8.6 μg/m3 (36) 36.0
 
March 29, 2021, 3 p.m. 4.0 ppb (4) 1.2 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 8.1 μg/m3 (34) 34.0
 
March 29, 2021, 2 p.m. 4.2 ppb (4) 1.2 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 8.5 μg/m3 (36) 36.0
 
March 29, 2021, 1 p.m. 4.3 ppb (5) 0.9 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 8.1 μg/m3 (34) 34.0
 
March 29, 2021, noon 3.8 ppb (4) 0.3 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A 7.6 μg/m3 (32) 32.0
 
March 29, 2021, 11 a.m. 4.1 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A 7.3 μg/m3 (31) 31.0
 
March 29, 2021, 10 a.m. 3.0 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 7.1 μg/m3 (30) 30.0
 
March 29, 2021, 9 a.m. 2.6 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A 7.0 μg/m3 (30) 30.0
 
March 29, 2021, 8 a.m. 2.4 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 27.0 ppb (25) N/A N/A 7.1 μg/m3 (30) 30.0
 
March 29, 2021, 7 a.m. 2.7 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 28.0 ppb (26) N/A N/A 6.9 μg/m3 (29) 29.0
 
March 29, 2021, 6 a.m. 2.6 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (27) N/A N/A 6.0 μg/m3 (25) 27.0
 
March 29, 2021, 5 a.m. 2.6 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 5.4 μg/m3 (23) 28.0
 
March 29, 2021, 4 a.m. 2.5 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 5.2 μg/m3 (22) 29.0
 
March 29, 2021, 3 a.m. 3.0 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 5.6 μg/m3 (24) 29.0
 
March 29, 2021, 2 a.m. 3.5 ppb (4) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 5.9 μg/m3 (25) 29.0
 
March 29, 2021, 1 a.m. 3.3 ppb (4) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 5.6 μg/m3 (24) 31.0
 
March 29, 2021, midnight 3.2 ppb (4) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 36.0 ppb (34) N/A N/A 6.1 μg/m3 (26) 34.0
 
March 28, 2021, 11 p.m. 2.8 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 38.0 ppb (36) N/A N/A 6.5 μg/m3 (28) 36.0
 
March 28, 2021, 10 p.m. 2.0 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (38) N/A N/A 5.9 μg/m3 (25) 38.0
 
March 28, 2021, 9 p.m. 1.6 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A 5.8 μg/m3 (25) 39.0
 
March 28, 2021, 8 p.m. 1.4 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A 5.7 μg/m3 (24) 39.0
 
March 28, 2021, 7 p.m. 1.4 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A 5.7 μg/m3 (24) 39.0
 
March 28, 2021, 6 p.m. 1.8 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (38) N/A N/A 5.6 μg/m3 (24) 38.0
 
March 28, 2021, 5 p.m. 2.9 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 40.0 ppb (38) N/A N/A 5.7 μg/m3 (24) 38.0
 
March 28, 2021, 4 p.m. 4.5 ppb (5) 1.3 ppb (2) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 39.0 ppb (37) N/A N/A 5.6 μg/m3 (24) 37.0
 
March 28, 2021, 3 p.m. 3.7 ppb (4) 1.2 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 5.3 μg/m3 (23) 30.0
 
March 28, 2021, 2 p.m. 4.9 ppb (5) 1.7 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 5.4 μg/m3 (23) 23.0
 
March 28, 2021, 1 p.m. 4.1 ppb (4) 1.3 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 16.0 ppb (15) N/A N/A 5.5 μg/m3 (23) 23.0
 
March 28, 2021, noon 3.2 ppb (4) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 15.0 ppb (14) N/A N/A 4.7 μg/m3 (20) 20.0
 
March 28, 2021, 11 a.m. 1.5 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 4.4 μg/m3 (19) 19.0
 
March 28, 2021, 10 a.m. 2.4 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 5.0 μg/m3 (21) 21.0
 
March 28, 2021, 9 a.m. 2.5 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 17.0 ppb (16) N/A N/A 5.1 μg/m3 (22) 22.0
 
March 28, 2021, 8 a.m. 2.5 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 15.0 ppb (14) N/A N/A 6.0 μg/m3 (25) 25.0
 
March 28, 2021, 7 a.m. 2.4 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 17.0 ppb (16) N/A N/A 5.9 μg/m3 (25) 25.0
 
March 28, 2021, 6 a.m. 3.8 ppb (4) 1.2 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 5.9 μg/m3 (25) 25.0
 
March 28, 2021, 5 a.m. 1.8 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 6.4 μg/m3 (27) 27.0