ID: 1327

AQSQID: 380171004

Site Name: Fargo Nw

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

Updated: March 5, 2021, 10:32 p.m.

Location: Fargo (40th Ave N), ND

Reporting: True, Located: True

Current AQI: 44.0

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
March 5, 2021, 8 p.m. 4.5 ppb (5) 1.1 ppb (2) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 43.0 ppb (40) N/A N/A 10.5 μg/m3 (44) 44.0
 
March 5, 2021, 7 p.m. 4.0 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 41.0 ppb (38) N/A N/A 11.7 μg/m3 (49) 49.0
 
March 5, 2021, 6 p.m. 4.5 ppb (5) 1.2 ppb (2) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 39.0 ppb (37) N/A N/A 12.4 μg/m3 (52) 52.0
 
March 5, 2021, 5 p.m. 3.5 ppb (4) 1.1 ppb (2) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 36.0 ppb (34) N/A N/A 14.2 μg/m3 (56) 56.0
 
March 5, 2021, 4 p.m. 9.0 ppb (9) 3.2 ppb (4) N/A 6.0 ppb (6) N/A 2.0 ppb (3) 30.0 ppb (28) N/A N/A 15.3 μg/m3 (58) 58.0
 
March 5, 2021, 3 p.m. 21.2 ppb (20) 9.7 ppb (10) N/A 12.0 ppb (12) N/A 2.0 ppb (3) 19.0 ppb (18) N/A N/A 13.6 μg/m3 (55) 55.0
 
March 5, 2021, 2 p.m. 23.3 ppb (22) 9.6 ppb (10) N/A 14.0 ppb (14) N/A 2.0 ppb (3) 13.0 ppb (13) N/A N/A 12.4 μg/m3 (52) 52.0
 
March 5, 2021, 1 p.m. 23.3 ppb (22) 7.3 ppb (7) N/A 16.0 ppb (16) N/A 2.0 ppb (3) 8.0 ppb (8) N/A N/A 12.0 μg/m3 (50) 50.0
 
March 5, 2021, noon 14.7 ppb (14) 1.3 ppb (2) N/A 13.0 ppb (13) N/A 2.0 ppb (3) 13.0 ppb (13) N/A N/A 12.3 μg/m3 (52) 52.0
 
March 5, 2021, 11 a.m. 23.8 ppb (23) 3.3 ppb (4) N/A 21.0 ppb (20) N/A 2.0 ppb (3) 14.0 ppb (13) N/A N/A 15.2 μg/m3 (58) 58.0
 
March 5, 2021, 10 a.m. 12.0 ppb (12) 0.6 ppb (1) N/A 11.0 ppb (11) N/A 2.0 ppb (3) 21.0 ppb (20) N/A N/A 13.2 μg/m3 (54) 54.0
 
March 5, 2021, 9 a.m. 10.1 ppb (10) 1.4 ppb (2) N/A 9.0 ppb (9) N/A 2.0 ppb (3) 16.0 ppb (15) N/A N/A 11.9 μg/m3 (50) 50.0
 
March 5, 2021, 8 a.m. 5.6 ppb (6) 0.3 ppb (1) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 25.0 ppb (24) N/A N/A 11.7 μg/m3 (49) 49.0
 
March 5, 2021, 7 a.m. 5.8 ppb (6) 0.2 ppb (1) N/A 6.0 ppb (6) N/A 2.0 ppb (3) 26.0 ppb (25) N/A N/A 11.2 μg/m3 (47) 47.0
 
March 5, 2021, 6 a.m. 7.7 ppb (8) 0.6 ppb (1) N/A 7.0 ppb (7) N/A 2.0 ppb (3) 24.0 ppb (23) N/A N/A 11.2 μg/m3 (47) 47.0
 
March 5, 2021, 5 a.m. 6.8 ppb (7) 0.4 ppb (1) N/A 6.0 ppb (6) N/A 2.0 ppb (3) 24.0 ppb (23) N/A N/A 10.7 μg/m3 (45) 45.0
 
March 5, 2021, 4 a.m. 12.8 ppb (13) 2.7 ppb (3) N/A 10.0 ppb (10) N/A 2.0 ppb (3) 22.0 ppb (21) N/A N/A 9.8 μg/m3 (41) 41.0
 
March 5, 2021, 3 a.m. 11.4 ppb (11) 1.5 ppb (2) N/A 10.0 ppb (10) N/A 2.0 ppb (3) 23.0 ppb (22) N/A N/A 9.9 μg/m3 (42) 42.0
 
March 5, 2021, 2 a.m. 9.6 ppb (10) 1.1 ppb (2) N/A 8.0 ppb (8) N/A 2.0 ppb (3) 26.0 ppb (25) N/A N/A 11.4 μg/m3 (48) 48.0
 
March 5, 2021, 1 a.m. 12.6 ppb (12) 1.1 ppb (2) N/A 11.0 ppb (11) N/A 2.0 ppb (3) 25.0 ppb (24) N/A N/A 12.3 μg/m3 (52) 52.0
 
March 5, 2021, midnight 17.6 ppb (17) 1.7 ppb (2) N/A 16.0 ppb (16) N/A 2.0 ppb (3) 22.0 ppb (21) N/A N/A 11.3 μg/m3 (48) 48.0
 
March 4, 2021, 11 p.m. 11.7 ppb (12) 1.8 ppb (2) N/A 10.0 ppb (10) N/A 2.0 ppb (3) 31.0 ppb (29) N/A N/A 10.2 μg/m3 (43) 43.0
 
March 4, 2021, 10 p.m. 6.4 ppb (7) 1.2 ppb (2) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 37.0 ppb (35) N/A N/A 10.4 μg/m3 (44) 44.0
 
March 4, 2021, 9 p.m. 4.1 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 39.0 ppb (37) N/A N/A 9.6 μg/m3 (40) 40.0
 
March 4, 2021, 8 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 39.0 ppb (37) N/A N/A 9.5 μg/m3 (40) 40.0
 
March 4, 2021, 7 p.m. 3.5 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 39.0 ppb (37) N/A N/A 8.6 μg/m3 (36) 37.0
 
March 4, 2021, 6 p.m. 2.8 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 38.0 ppb (36) N/A N/A 8.0 μg/m3 (34) 36.0
 
March 4, 2021, 5 p.m. 2.8 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 37.0 ppb (35) N/A N/A 7.5 μg/m3 (32) 35.0
 
March 4, 2021, 4 p.m. 3.1 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 35.0 ppb (33) N/A N/A 8.1 μg/m3 (34) 34.0
 
March 4, 2021, 3 p.m. 5.3 ppb (5) 1.5 ppb (2) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 32.0 ppb (30) N/A N/A 8.6 μg/m3 (36) 36.0
 
March 4, 2021, 2 p.m. 13.0 ppb (13) 3.2 ppb (4) N/A 10.0 ppb (10) N/A 2.0 ppb (3) 26.0 ppb (25) N/A N/A 9.5 μg/m3 (40) 40.0
 
March 4, 2021, 1 p.m. 14.4 ppb (14) 2.0 ppb (2) N/A 12.0 ppb (12) N/A 2.0 ppb (3) 22.0 ppb (21) N/A N/A 8.2 μg/m3 (35) 35.0
 
March 4, 2021, noon 11.5 ppb (11) 0.9 ppb (1) N/A 11.0 ppb (11) N/A 2.0 ppb (3) 24.0 ppb (23) N/A N/A 7.7 μg/m3 (33) 33.0
 
March 4, 2021, 11 a.m. 11.3 ppb (11) 1.5 ppb (2) N/A 10.0 ppb (10) N/A 2.0 ppb (3) 24.0 ppb (23) N/A N/A 7.5 μg/m3 (32) 32.0
 
March 4, 2021, 10 a.m. 10.2 ppb (10) 1.1 ppb (2) N/A 9.0 ppb (9) N/A 2.0 ppb (3) 23.0 ppb (22) N/A N/A 7.7 μg/m3 (33) 33.0
 
March 4, 2021, 9 a.m. 13.5 ppb (13) 1.2 ppb (2) N/A 12.0 ppb (12) N/A 2.0 ppb (3) 19.0 ppb (18) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 4, 2021, 8 a.m. 7.9 ppb (8) 0.7 ppb (1) N/A 7.0 ppb (7) N/A 2.0 ppb (3) 24.0 ppb (23) N/A N/A 8.6 μg/m3 (36) 36.0
 
March 4, 2021, 7 a.m. 4.4 ppb (5) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 29.0 ppb (27) N/A N/A 8.9 μg/m3 (38) 38.0
 
March 4, 2021, 6 a.m. 6.1 ppb (6) 0.3 ppb (1) N/A 6.0 ppb (6) N/A 2.0 ppb (3) 27.0 ppb (25) N/A N/A 8.2 μg/m3 (35) 35.0
 
March 4, 2021, 5 a.m. 11.9 ppb (12) 0.8 ppb (1) N/A 11.0 ppb (11) N/A 2.0 ppb (3) 21.0 ppb (20) N/A N/A 9.5 μg/m3 (40) 40.0
 
March 4, 2021, 4 a.m. 13.0 ppb (13) 0.6 ppb (1) N/A 12.0 ppb (12) N/A 2.0 ppb (3) 20.0 ppb (19) N/A N/A 9.1 μg/m3 (38) 38.0
 
March 4, 2021, 3 a.m. 11.4 ppb (11) 0.7 ppb (1) N/A 11.0 ppb (11) N/A 2.0 ppb (3) 24.0 ppb (23) N/A N/A 7.8 μg/m3 (33) 33.0
 
March 4, 2021, 2 a.m. 12.9 ppb (13) 1.0 ppb (1) N/A 12.0 ppb (12) N/A 2.0 ppb (3) 25.0 ppb (24) N/A N/A 8.4 μg/m3 (36) 36.0
 
March 4, 2021, 1 a.m. 15.8 ppb (15) 1.6 ppb (2) N/A 14.0 ppb (14) N/A 2.0 ppb (3) 23.0 ppb (22) N/A N/A 9.1 μg/m3 (38) 38.0
 
March 4, 2021, midnight 26.7 ppb (26) 4.6 ppb (5) N/A 22.0 ppb (21) N/A 2.0 ppb (3) 16.0 ppb (15) N/A N/A 8.6 μg/m3 (36) 36.0
 
March 3, 2021, 11 p.m. 13.3 ppb (13) 1.6 ppb (2) N/A 12.0 ppb (12) N/A 2.0 ppb (3) 25.0 ppb (24) N/A N/A 8.7 μg/m3 (37) 37.0
 
March 3, 2021, 10 p.m. 5.4 ppb (6) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 35.0 ppb (33) N/A N/A 7.7 μg/m3 (33) 33.0
 
March 3, 2021, 9 p.m. 5.1 ppb (5) 1.3 ppb (2) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 35.0 ppb (33) N/A N/A 8.5 μg/m3 (36) 36.0
 
March 3, 2021, 8 p.m. 7.9 ppb (8) 2.1 ppb (2) N/A 6.0 ppb (6) N/A 3.0 ppb (5) 33.0 ppb (31) N/A N/A 9.4 μg/m3 (40) 40.0
 
March 3, 2021, 7 p.m. 6.9 ppb (7) 2.2 ppb (3) N/A 5.0 ppb (5) N/A 3.0 ppb (5) 34.0 ppb (32) N/A N/A 8.5 μg/m3 (36) 36.0
 
March 3, 2021, 6 p.m. 3.6 ppb (4) 1.4 ppb (2) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 33.0 ppb (31) N/A N/A 8.3 μg/m3 (35) 35.0
 
March 3, 2021, 5 p.m. 4.6 ppb (5) 1.5 ppb (2) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 31.0 ppb (29) N/A N/A 9.2 μg/m3 (39) 39.0
 
March 3, 2021, 4 p.m. 5.1 ppb (5) 1.9 ppb (2) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 28.0 ppb (26) N/A N/A 9.8 μg/m3 (41) 41.0
 
March 3, 2021, 3 p.m. 6.7 ppb (7) 2.6 ppb (3) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 24.0 ppb (23) N/A N/A 10.4 μg/m3 (44) 44.0
 
March 3, 2021, 2 p.m. 9.1 ppb (9) 4.0 ppb (4) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 19.0 ppb (18) N/A N/A 11.6 μg/m3 (49) 49.0
 
March 3, 2021, 1 p.m. 10.9 ppb (11) 3.5 ppb (4) N/A 7.0 ppb (7) N/A 2.0 ppb (3) 15.0 ppb (14) N/A N/A 11.8 μg/m3 (50) 50.0
 
March 3, 2021, noon 15.3 ppb (15) 4.5 ppb (5) N/A 11.0 ppb (11) N/A 2.0 ppb (3) 12.0 ppb (12) N/A N/A 12.2 μg/m3 (52) 52.0
 
March 3, 2021, 11 a.m. 8.5 ppb (9) 1.6 ppb (2) N/A 7.0 ppb (7) N/A 2.0 ppb (3) 14.0 ppb (13) N/A N/A 11.6 μg/m3 (49) 49.0
 
March 3, 2021, 10 a.m. 4.1 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 19.0 ppb (18) N/A N/A 11.6 μg/m3 (49) 49.0
 
March 3, 2021, 9 a.m. 6.4 ppb (7) 0.8 ppb (1) N/A 6.0 ppb (6) N/A 2.0 ppb (3) 16.0 ppb (15) N/A N/A 11.1 μg/m3 (47) 47.0
 
March 3, 2021, 8 a.m. 3.7 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 23.0 ppb (22) N/A N/A 10.5 μg/m3 (44) 44.0
 
March 3, 2021, 7 a.m. 3.0 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 25.0 ppb (24) N/A N/A 10.3 μg/m3 (43) 43.0
 
March 3, 2021, 6 a.m. 5.3 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 22.0 ppb (21) N/A N/A 8.7 μg/m3 (37) 37.0
 
March 3, 2021, 5 a.m. 4.3 ppb (5) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 27.0 ppb (25) N/A N/A 8.5 μg/m3 (36) 36.0
 
March 3, 2021, 4 a.m. 3.9 ppb (4) 0.3 ppb (1) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 27.0 ppb (25) N/A N/A 8.9 μg/m3 (38) 38.0
 
March 3, 2021, 3 a.m. 3.7 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 30.0 ppb (28) N/A N/A 8.2 μg/m3 (35) 35.0
 
March 3, 2021, 2 a.m. 4.5 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 31.0 ppb (29) N/A N/A 6.8 μg/m3 (29) 29.0
 
March 3, 2021, 1 a.m. 3.0 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 27.0 ppb (25) N/A N/A 4.4 μg/m3 (19) 25.0
 
March 3, 2021, midnight 2.9 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 30.0 ppb (28) N/A N/A 4.6 μg/m3 (20) 28.0
 
March 2, 2021, 11 p.m. 1.9 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 34.0 ppb (32) N/A N/A 4.3 μg/m3 (18) 32.0
 
March 2, 2021, 10 p.m. 1.9 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 37.0 ppb (35) N/A N/A 4.2 μg/m3 (18) 35.0
 
March 2, 2021, 9 p.m. 1.6 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 37.0 ppb (35) N/A N/A 4.0 μg/m3 (17) 35.0
 
March 2, 2021, 8 p.m. 1.5 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 35.0 ppb (33) N/A N/A 3.8 μg/m3 (16) 33.0
 
March 2, 2021, 7 p.m. 1.4 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 33.0 ppb (31) N/A N/A 4.2 μg/m3 (18) 31.0
 
March 2, 2021, 6 p.m. 1.7 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 30.0 ppb (28) N/A N/A 7.4 μg/m3 (31) 31.0
 
March 2, 2021, 5 p.m. 2.2 ppb (3) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 25.0 ppb (24) N/A N/A 6.2 μg/m3 (26) 26.0
 
March 2, 2021, 4 p.m. 1.7 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 23.0 ppb (22) N/A N/A 5.1 μg/m3 (22) 22.0
 
March 2, 2021, 3 p.m. 3.3 ppb (4) 1.4 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 22.0 ppb (21) N/A N/A 4.9 μg/m3 (21) 21.0
 
March 2, 2021, 2 p.m. 4.3 ppb (5) 1.4 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 21.0 ppb (20) N/A N/A 5.2 μg/m3 (22) 22.0
 
March 2, 2021, 1 p.m. 11.7 ppb (12) 1.8 ppb (2) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 15.0 ppb (14) N/A N/A 6.5 μg/m3 (28) 28.0
 
March 2, 2021, noon 6.6 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 18.0 ppb (17) N/A N/A 7.2 μg/m3 (31) 31.0
 
March 2, 2021, 11 a.m. 4.5 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 21.0 ppb (20) N/A N/A 7.7 μg/m3 (33) 33.0
 
March 2, 2021, 10 a.m. 5.3 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 22.0 ppb (21) N/A N/A 7.8 μg/m3 (33) 33.0
 
March 2, 2021, 9 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 25.0 ppb (24) N/A N/A 7.7 μg/m3 (33) 33.0
 
March 2, 2021, 8 a.m. 3.3 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 28.0 ppb (26) N/A N/A 7.7 μg/m3 (33) 33.0
 
March 2, 2021, 7 a.m. 3.2 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 30.0 ppb (28) N/A N/A 7.4 μg/m3 (31) 31.0
 
March 2, 2021, 6 a.m. 3.5 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 31.0 ppb (29) N/A N/A 6.4 μg/m3 (27) 29.0
 
March 2, 2021, 5 a.m. 2.2 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 5.1 μg/m3 (22) 33.0
 
March 2, 2021, 4 a.m. 2.3 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 4.5 μg/m3 (19) 33.0
 
March 2, 2021, 3 a.m. 2.7 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 4.2 μg/m3 (18) 33.0
 
March 2, 2021, 2 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 4.4 μg/m3 (19) 33.0
 
March 2, 2021, 1 a.m. 4.2 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 4.5 μg/m3 (19) 31.0
 
March 2, 2021, midnight 4.0 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 4.1 μg/m3 (18) 32.0
 
March 1, 2021, 11 p.m. 5.2 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 5.8 μg/m3 (25) 33.0
 
March 1, 2021, 10 p.m. 4.2 ppb (4) 1.3 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 38.0 ppb (36) N/A N/A 4.0 μg/m3 (17) 36.0
 
March 1, 2021, 9 p.m. 4.5 ppb (5) 2.0 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 38.0 ppb (36) N/A N/A 3.8 μg/m3 (16) 36.0
 
March 1, 2021, 8 p.m. 4.8 ppb (5) 2.4 ppb (3) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 38.0 ppb (36) N/A N/A 4.2 μg/m3 (18) 36.0
 
March 1, 2021, 7 p.m. 8.6 ppb (9) 4.8 ppb (5) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 34.0 ppb (32) N/A N/A 5.6 μg/m3 (24) 32.0
 
March 1, 2021, 6 p.m. 6.2 ppb (6) 3.8 ppb (4) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 33.0 ppb (31) N/A N/A 5.0 μg/m3 (21) 31.0
 
March 1, 2021, 5 p.m. 4.0 ppb (4) 2.5 ppb (3) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 4.0 μg/m3 (17) 30.0
 
March 1, 2021, 4 p.m. 3.2 ppb (4) 2.1 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 31.0 ppb (29) N/A N/A 3.9 μg/m3 (17) 29.0
 
March 1, 2021, 3 p.m. 3.3 ppb (4) 2.2 ppb (3) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 30.0 ppb (28) N/A N/A 3.9 μg/m3 (17) 28.0
 
March 1, 2021, 2 p.m. 4.7 ppb (5) 2.4 ppb (3) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 28.0 ppb (26) N/A N/A 3.5 μg/m3 (15) 26.0
 
March 1, 2021, 1 p.m. 6.4 ppb (7) 1.9 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 24.0 ppb (23) N/A N/A 3.6 μg/m3 (16) 23.0
 
March 1, 2021, noon 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 24.0 ppb (23) N/A N/A 3.7 μg/m3 (16) 23.0
 
March 1, 2021, 11 a.m. 1.5 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 27.0 ppb (25) N/A N/A 3.7 μg/m3 (16) 25.0
 
March 1, 2021, 10 a.m. 1.6 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 29.0 ppb (27) N/A N/A 3.6 μg/m3 (16) 27.0
 
March 1, 2021, 9 a.m. 3.9 ppb (4) 2.0 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 31.0 ppb (29) N/A N/A 3.3 μg/m3 (14) 29.0
 
March 1, 2021, 8 a.m. 0.5 ppb (1) 0.1 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 37.0 ppb (35) N/A N/A 2.7 μg/m3 (12) 35.0
 
March 1, 2021, 7 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 38.0 ppb (36) N/A N/A 3.6 μg/m3 (16) 36.0
 
March 1, 2021, 6 a.m. 0.3 ppb (1) 0.2 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 4.4 μg/m3 (19) 33.0
 
March 1, 2021, 5 a.m. 0.5 ppb (1) 0.3 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 4.9 μg/m3 (21) 33.0
 
March 1, 2021, 4 a.m. 3.9 ppb (4) 1.8 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 5.5 μg/m3 (23) 30.0
 
March 1, 2021, 3 a.m. 1.5 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 5.8 μg/m3 (25) 30.0
 
March 1, 2021, 2 a.m. 1.5 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 5.5 μg/m3 (23) 30.0
 
March 1, 2021, 1 a.m. 1.2 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 5.6 μg/m3 (24) 31.0
 
March 1, 2021, midnight 0.7 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 33.0 ppb (31) N/A N/A 6.0 μg/m3 (25) 31.0
 
Feb. 28, 2021, 11 p.m. 0.2 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 6.0 μg/m3 (25) 32.0
 
Feb. 28, 2021, 10 p.m. 0.1 ppb (1) 0.1 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 6.3 μg/m3 (27) 33.0
 
Feb. 28, 2021, 9 p.m. 0.0 ppb (0) 0.2 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 5.7 μg/m3 (24) 32.0
 
Feb. 28, 2021, 8 p.m. 0.1 ppb (1) 0.1 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 33.0 ppb (31) N/A N/A 4.8 μg/m3 (20) 31.0
 
Feb. 28, 2021, 7 p.m. 0.6 ppb (1) 0.4 ppb (1) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 30.0 ppb (28) N/A N/A 4.5 μg/m3 (19) 28.0
 
Feb. 28, 2021, 6 p.m. 1.5 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 28.0 ppb (26) N/A N/A 5.0 μg/m3 (21) 26.0
 
Feb. 28, 2021, 5 p.m. 2.0 ppb (2) 1.4 ppb (2) N/A 1.0 ppb (1) N/A 3.0 ppb (5) 26.0 ppb (25) N/A N/A 4.9 μg/m3 (21) 25.0
 
Feb. 28, 2021, 4 p.m. 0.4 ppb (1) 0.7 ppb (1) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 26.0 ppb (25) N/A N/A 4.4 μg/m3 (19) 25.0
 
Feb. 28, 2021, 3 p.m. 0.0 ppb (0) 0.2 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 23.0 ppb (22) N/A N/A 4.3 μg/m3 (18) 22.0
 
Feb. 28, 2021, 2 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 18.0 ppb (17) N/A N/A 4.6 μg/m3 (20) 20.0
 
Feb. 28, 2021, 1 p.m. 0.4 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 17.0 ppb (16) N/A N/A 4.4 μg/m3 (19) 19.0
 
Feb. 28, 2021, noon 0.3 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 17.0 ppb (16) N/A N/A 5.0 μg/m3 (21) 21.0
 
Feb. 28, 2021, 11 a.m. 0.1 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 18.0 ppb (17) N/A N/A 4.6 μg/m3 (20) 20.0
 
Feb. 28, 2021, 10 a.m. 0.6 ppb (1) 0.2 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 16.0 ppb (15) N/A N/A 4.5 μg/m3 (19) 19.0
 
Feb. 28, 2021, 9 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 16.0 ppb (15) N/A N/A 5.0 μg/m3 (21) 21.0
 
Feb. 28, 2021, 8 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 16.0 ppb (15) N/A N/A 5.0 μg/m3 (21) 21.0
 
Feb. 28, 2021, 7 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 16.0 ppb (15) N/A N/A 3.9 μg/m3 (17) 17.0
 
Feb. 28, 2021, 6 a.m. 1.5 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 15.0 ppb (14) N/A N/A 4.0 μg/m3 (17) 17.0
 
Feb. 28, 2021, 5 a.m. 2.1 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 15.0 ppb (14) N/A N/A 4.2 μg/m3 (18) 18.0
 
Feb. 28, 2021, 4 a.m. 1.3 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 15.0 ppb (14) N/A N/A 4.2 μg/m3 (18) 18.0
 
Feb. 28, 2021, 3 a.m. 2.3 ppb (3) 0.9 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 14.0 ppb (13) N/A N/A 4.3 μg/m3 (18) 18.0
 
Feb. 28, 2021, 2 a.m. 2.6 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 14.0 ppb (13) N/A N/A 5.2 μg/m3 (22) 22.0
 
Feb. 28, 2021, 1 a.m. 4.2 ppb (4) 1.2 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 15.0 ppb (14) N/A N/A 5.1 μg/m3 (22) 22.0
 
Feb. 28, 2021, midnight 2.0 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 16.0 ppb (15) N/A N/A 4.3 μg/m3 (18) 18.0
 
Feb. 27, 2021, 11 p.m. 2.0 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 17.0 ppb (16) N/A N/A 4.4 μg/m3 (19) 19.0
 
Feb. 27, 2021, 10 p.m. 1.4 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 18.0 ppb (17) N/A N/A 4.3 μg/m3 (18) 18.0
 
Feb. 27, 2021, 9 p.m. 1.0 ppb (1) 0.7 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 18.0 ppb (17) N/A N/A 4.4 μg/m3 (19) 19.0
 
Feb. 27, 2021, 8 p.m. 1.1 ppb (2) 0.9 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 18.0 ppb (17) N/A N/A 4.4 μg/m3 (19) 19.0
 
Feb. 27, 2021, 7 p.m. 1.2 ppb (2) 1.2 ppb (2) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 17.0 ppb (16) N/A N/A 4.9 μg/m3 (21) 21.0
 
Feb. 27, 2021, 6 p.m. 1.5 ppb (2) 1.6 ppb (2) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 15.0 ppb (14) N/A N/A 5.2 μg/m3 (22) 22.0
 
Feb. 27, 2021, 5 p.m. 1.1 ppb (2) 1.2 ppb (2) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 13.0 ppb (13) N/A N/A 5.3 μg/m3 (23) 23.0
 
Feb. 27, 2021, 4 p.m. 0.7 ppb (1) 0.8 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 13.0 ppb (13) N/A N/A 5.7 μg/m3 (24) 24.0
 
Feb. 27, 2021, 3 p.m. 0.8 ppb (1) 0.8 ppb (1) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 13.0 ppb (13) N/A N/A 5.9 μg/m3 (25) 25.0
 
Feb. 27, 2021, 2 p.m. 1.5 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 13.0 ppb (13) N/A N/A 6.0 μg/m3 (25) 25.0
 
Feb. 27, 2021, 1 p.m. 1.4 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 14.0 ppb (13) N/A N/A 6.2 μg/m3 (26) 26.0
 
Feb. 27, 2021, noon 0.9 ppb (1) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 17.0 ppb (16) N/A N/A 6.2 μg/m3 (26) 26.0
 
Feb. 27, 2021, 11 a.m. 0.8 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 22.0 ppb (21) N/A N/A 6.3 μg/m3 (27) 27.0
 
Feb. 27, 2021, 10 a.m. 0.8 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 25.0 ppb (24) N/A N/A 6.8 μg/m3 (29) 29.0
 
Feb. 27, 2021, 9 a.m. 1.3 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 28.0 ppb (26) N/A N/A 7.2 μg/m3 (31) 31.0
 
Feb. 27, 2021, 8 a.m. 0.9 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 29.0 ppb (27) N/A N/A 7.5 μg/m3 (32) 32.0
 
Feb. 27, 2021, 7 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 32.0 ppb (30) N/A N/A 6.9 μg/m3 (29) 30.0
 
Feb. 27, 2021, 6 a.m. 7.0 ppb (7) 2.6 ppb (3) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 28.0 ppb (26) N/A N/A 8.5 μg/m3 (36) 36.0
 
Feb. 27, 2021, 5 a.m. 1.5 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 31.0 ppb (29) N/A N/A 10.6 μg/m3 (45) 45.0
 
Feb. 27, 2021, 4 a.m. 2.8 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 28.0 ppb (26) N/A N/A 6.0 μg/m3 (25) 26.0
 
Feb. 27, 2021, 3 a.m. 1.9 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 32.0 ppb (30) N/A N/A 3.0 μg/m3 (13) 30.0
 
Feb. 27, 2021, 2 a.m. 1.0 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 32.0 ppb (30) N/A N/A 2.9 μg/m3 (13) 30.0
 
Feb. 27, 2021, 1 a.m. 1.4 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 34.0 ppb (32) N/A N/A 3.2 μg/m3 (14) 32.0
 
Feb. 27, 2021, midnight 1.5 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 34.0 ppb (32) N/A N/A 2.7 μg/m3 (12) 32.0
 
Feb. 26, 2021, 11 p.m. 3.2 ppb (4) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 31.0 ppb (29) N/A N/A 3.0 μg/m3 (13) 29.0
 
Feb. 26, 2021, 10 p.m. 2.9 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 31.0 ppb (29) N/A N/A 3.7 μg/m3 (16) 29.0
 
Feb. 26, 2021, 9 p.m. 2.0 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 32.0 ppb (30) N/A N/A 3.9 μg/m3 (17) 30.0