ID: 1327

AQSQID: 380171004

Site Name: Fargo Nw

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

Updated: June 23, 2021, 9:55 p.m.

Location: Fargo (40th Ave N), ND

Reporting: True, Located: True

Current AQI: 55.0

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
June 23, 2021, 7 p.m. 3.1 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 56.0 ppb (55) N/A N/A 9.7 μg/m3 (41) 55.0
 
June 23, 2021, 6 p.m. 2.7 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 56.0 ppb (55) N/A N/A 9.7 μg/m3 (41) 55.0
 
June 23, 2021, 5 p.m. 3.0 ppb (3) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 52.0 ppb (49) N/A N/A 9.7 μg/m3 (41) 49.0
 
June 23, 2021, 4 p.m. 3.6 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 10.0 μg/m3 (42) 44.0
 
June 23, 2021, 3 p.m. 4.9 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 40.0 ppb (38) N/A N/A 9.7 μg/m3 (41) 41.0
 
June 23, 2021, 2 p.m. 6.5 ppb (7) 1.6 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 10.1 μg/m3 (43) 43.0
 
June 23, 2021, 1 p.m. 7.6 ppb (8) 1.9 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 31.0 ppb (29) N/A N/A 9.1 μg/m3 (38) 38.0
 
June 23, 2021, noon 7.1 ppb (7) 1.2 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 30.0 ppb (28) N/A N/A 7.4 μg/m3 (31) 31.0
 
June 23, 2021, 11 a.m. 6.6 ppb (7) 0.4 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 28.0 ppb (26) N/A N/A 7.0 μg/m3 (30) 30.0
 
June 23, 2021, 10 a.m. 6.2 ppb (6) 0.1 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 27.0 ppb (25) N/A N/A 6.1 μg/m3 (26) 26.0
 
June 23, 2021, 9 a.m. 4.4 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 33.0 ppb (31) N/A N/A 5.4 μg/m3 (23) 31.0
 
June 23, 2021, 8 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 36.0 ppb (34) N/A N/A 5.3 μg/m3 (23) 34.0
 
June 23, 2021, 7 a.m. 4.5 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 36.0 ppb (34) N/A N/A 5.4 μg/m3 (23) 34.0
 
June 23, 2021, 6 a.m. 4.5 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 38.0 ppb (36) N/A N/A 5.6 μg/m3 (24) 36.0
 
June 23, 2021, 5 a.m. 4.9 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 39.0 ppb (37) N/A N/A 5.1 μg/m3 (22) 37.0
 
June 23, 2021, 4 a.m. 6.7 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 38.0 ppb (36) N/A N/A 5.3 μg/m3 (23) 36.0
 
June 23, 2021, 3 a.m. 5.5 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 43.0 ppb (40) N/A N/A 5.5 μg/m3 (23) 40.0
 
June 23, 2021, 2 a.m. 6.2 ppb (6) 0.1 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 45.0 ppb (42) N/A N/A 5.5 μg/m3 (23) 42.0
 
June 23, 2021, 1 a.m. 3.0 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 53.0 ppb (50) N/A N/A 5.5 μg/m3 (23) 50.0
 
June 23, 2021, midnight 2.1 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 54.0 ppb (50) N/A N/A 5.7 μg/m3 (24) 50.0
 
June 22, 2021, 11 p.m. 1.6 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 4.9 μg/m3 (21) 51.0
 
June 22, 2021, 10 p.m. 1.6 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 4.6 μg/m3 (20) 51.0
 
June 22, 2021, 9 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 4.4 μg/m3 (19) 51.0
 
June 22, 2021, 8 p.m. 1.7 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 53.0 ppb (50) N/A N/A 4.3 μg/m3 (18) 50.0
 
June 22, 2021, 7 p.m. 1.6 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 4.0 μg/m3 (17) 47.0
 
June 22, 2021, 6 p.m. 1.5 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 48.0 ppb (45) N/A N/A 3.6 μg/m3 (16) 45.0
 
June 22, 2021, 5 p.m. 1.6 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 46.0 ppb (43) N/A N/A 3.5 μg/m3 (15) 43.0
 
June 22, 2021, 4 p.m. 1.8 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 3.6 μg/m3 (16) 38.0
 
June 22, 2021, 3 p.m. 3.7 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 4.5 μg/m3 (19) 30.0
 
June 22, 2021, 2 p.m. 6.2 ppb (6) 1.9 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 25.0 ppb (24) N/A N/A 5.7 μg/m3 (24) 24.0
 
June 22, 2021, 1 p.m. 7.7 ppb (8) 2.3 ppb (3) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 20.0 ppb (19) N/A N/A 6.3 μg/m3 (27) 27.0
 
June 22, 2021, noon 5.9 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 20.0 ppb (19) N/A N/A 5.5 μg/m3 (23) 23.0
 
June 22, 2021, 11 a.m. 6.2 ppb (6) 0.4 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 19.0 ppb (18) N/A N/A 5.6 μg/m3 (24) 24.0
 
June 22, 2021, 10 a.m. 5.7 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 18.0 ppb (17) N/A N/A 5.5 μg/m3 (23) 23.0
 
June 22, 2021, 9 a.m. 4.4 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 4.8 μg/m3 (20) 21.0
 
June 22, 2021, 8 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 4.6 μg/m3 (20) 20.0
 
June 22, 2021, 7 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 20.0 ppb (19) N/A N/A 4.2 μg/m3 (18) 19.0
 
June 22, 2021, 6 a.m. 10.6 ppb (10) 0.0 ppb (0) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 13.0 ppb (13) N/A N/A 5.0 μg/m3 (21) 21.0
 
June 22, 2021, 5 a.m. 17.3 ppb (17) 2.2 ppb (3) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 5.0 ppb (5) N/A N/A 7.4 μg/m3 (31) 31.0
 
June 22, 2021, 4 a.m. 14.2 ppb (14) 1.1 ppb (2) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 8.0 ppb (8) N/A N/A 7.0 μg/m3 (30) 30.0
 
June 22, 2021, 3 a.m. 8.2 ppb (8) 0.5 ppb (1) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 17.0 ppb (16) N/A N/A 7.5 μg/m3 (32) 32.0
 
June 22, 2021, 2 a.m. 4.0 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 27.0 ppb (25) N/A N/A 5.7 μg/m3 (24) 25.0
 
June 22, 2021, 1 a.m. 2.7 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 1.9 μg/m3 (8) 32.0
 
June 22, 2021, midnight 2.2 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 37.0 ppb (35) N/A N/A 2.7 μg/m3 (12) 35.0
 
June 21, 2021, 11 p.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 1.9 μg/m3 (8) 35.0
 
June 21, 2021, 10 p.m. 2.1 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 37.0 ppb (35) N/A N/A 2.0 μg/m3 (9) 35.0
 
June 21, 2021, 9 p.m. 3.7 ppb (4) 1.6 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 2.0 μg/m3 (9) 33.0
 
June 21, 2021, 8 p.m. 2.0 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 1.5 μg/m3 (7) 30.0
 
June 21, 2021, 7 p.m. 2.1 ppb (2) 0.9 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 30.0 ppb (28) N/A N/A 1.5 μg/m3 (7) 28.0
 
June 21, 2021, 6 p.m. 1.7 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 30.0 ppb (28) N/A N/A 1.4 μg/m3 (6) 28.0
 
June 21, 2021, 5 p.m. 1.6 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 29.0 ppb (27) N/A N/A 1.3 μg/m3 (6) 27.0
 
June 21, 2021, 4 p.m. 1.6 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 27.0 ppb (25) N/A N/A 1.3 μg/m3 (6) 25.0
 
June 21, 2021, 3 p.m. 1.5 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 24.0 ppb (23) N/A N/A 1.6 μg/m3 (7) 23.0
 
June 21, 2021, 2 p.m. 2.5 ppb (3) 1.1 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 22.0 ppb (21) N/A N/A 1.8 μg/m3 (8) 21.0
 
June 21, 2021, 1 p.m. 2.6 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 20.0 ppb (19) N/A N/A 1.8 μg/m3 (8) 19.0
 
June 21, 2021, noon 2.6 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 19.0 ppb (18) N/A N/A 1.9 μg/m3 (8) 18.0
 
June 21, 2021, 11 a.m. 2.8 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 16.0 ppb (15) N/A N/A 2.3 μg/m3 (10) 15.0
 
June 21, 2021, 10 a.m. 1.9 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 16.0 ppb (15) N/A N/A 2.3 μg/m3 (10) 15.0
 
June 21, 2021, 9 a.m. 1.2 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 18.0 ppb (17) N/A N/A 1.9 μg/m3 (8) 17.0
 
June 21, 2021, 8 a.m. 1.4 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 17.0 ppb (16) N/A N/A 2.0 μg/m3 (9) 16.0
 
June 21, 2021, 7 a.m. 1.5 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 17.0 ppb (16) N/A N/A 2.4 μg/m3 (10) 16.0
 
June 21, 2021, 6 a.m. 3.5 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 16.0 ppb (15) N/A N/A 2.6 μg/m3 (11) 15.0
 
June 21, 2021, 5 a.m. 3.8 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 18.0 ppb (17) N/A N/A 2.8 μg/m3 (12) 17.0
 
June 21, 2021, 4 a.m. 2.4 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 21.0 ppb (20) N/A N/A 2.9 μg/m3 (13) 20.0
 
June 21, 2021, 3 a.m. 5.7 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 21.0 ppb (20) N/A N/A 3.0 μg/m3 (13) 20.0
 
June 21, 2021, 2 a.m. 2.7 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 26.0 ppb (25) N/A N/A 3.1 μg/m3 (13) 25.0
 
June 21, 2021, 1 a.m. 2.4 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 30.0 ppb (28) N/A N/A 3.3 μg/m3 (14) 28.0
 
June 21, 2021, midnight 1.8 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 3.8 μg/m3 (16) 30.0
 
June 20, 2021, 11 p.m. 1.5 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 4.9 μg/m3 (21) 30.0
 
June 20, 2021, 10 p.m. 1.7 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 30.0 ppb (28) N/A N/A 6.2 μg/m3 (26) 28.0
 
June 20, 2021, 9 p.m. 1.7 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 5.9 μg/m3 (25) 29.0
 
June 20, 2021, 8 p.m. 1.4 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 39.0 ppb (37) N/A N/A 4.3 μg/m3 (18) 37.0
 
June 20, 2021, 7 p.m. 1.6 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 3.8 μg/m3 (16) 39.0
 
June 20, 2021, 6 p.m. 2.2 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 39.0 ppb (37) N/A N/A 4.5 μg/m3 (19) 37.0
 
June 20, 2021, 5 p.m. 1.8 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 4.3 μg/m3 (18) 33.0
 
June 20, 2021, 4 p.m. 1.8 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 4.2 μg/m3 (18) 35.0
 
June 20, 2021, 3 p.m. 1.9 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 4.2 μg/m3 (18) 32.0
 
June 20, 2021, 2 p.m. 2.4 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 29.0 ppb (27) N/A N/A 5.4 μg/m3 (23) 27.0
 
June 20, 2021, 1 p.m. 2.4 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 30.0 ppb (28) N/A N/A 6.0 μg/m3 (25) 28.0
 
June 20, 2021, noon 4.1 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 29.0 ppb (27) N/A N/A 7.1 μg/m3 (30) 30.0
 
June 20, 2021, 11 a.m. 4.6 ppb (5) 0.1 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 26.0 ppb (25) N/A N/A 9.3 μg/m3 (39) 39.0
 
June 20, 2021, 10 a.m. 4.6 ppb (5) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 19.0 ppb (18) N/A N/A 8.3 μg/m3 (35) 35.0
 
June 20, 2021, 9 a.m. 4.8 ppb (5) 0.2 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 19.0 ppb (18) N/A N/A 6.6 μg/m3 (28) 28.0
 
June 20, 2021, 8 a.m. 3.8 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 22.0 ppb (21) N/A N/A 6.5 μg/m3 (28) 28.0
 
June 20, 2021, 7 a.m. 8.4 ppb (8) 0.1 ppb (1) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 21.0 ppb (20) N/A N/A 6.6 μg/m3 (28) 28.0
 
June 20, 2021, 6 a.m. 5.4 ppb (6) 0.1 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 27.0 ppb (25) N/A N/A 7.3 μg/m3 (31) 31.0
 
June 20, 2021, 5 a.m. 8.6 ppb (9) 0.0 ppb (0) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 24.0 ppb (23) N/A N/A 7.9 μg/m3 (33) 33.0
 
June 20, 2021, 4 a.m. 5.4 ppb (6) 0.4 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 31.0 ppb (29) N/A N/A 7.3 μg/m3 (31) 31.0
 
June 20, 2021, 3 a.m. 4.2 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 31.0 ppb (29) N/A N/A 11.3 μg/m3 (48) 48.0
 
June 20, 2021, 2 a.m. 3.2 ppb (4) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 36.0 ppb (34) N/A N/A 13.3 μg/m3 (54) 54.0
 
June 20, 2021, 1 a.m. 1.6 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 39.0 ppb (37) N/A N/A 7.9 μg/m3 (33) 37.0
 
June 20, 2021, midnight 1.4 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 44.0 ppb (41) N/A N/A 5.2 μg/m3 (22) 41.0
 
June 19, 2021, 11 p.m. 1.4 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 5.1 μg/m3 (22) 42.0
 
June 19, 2021, 10 p.m. 1.4 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 5.1 μg/m3 (22) 42.0
 
June 19, 2021, 9 p.m. 1.5 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 44.0 ppb (41) N/A N/A 6.0 μg/m3 (25) 41.0
 
June 19, 2021, 8 p.m. 1.4 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 41.0 ppb (38) N/A N/A 5.9 μg/m3 (25) 38.0
 
June 19, 2021, 7 p.m. 1.4 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 40.0 ppb (38) N/A N/A 5.8 μg/m3 (25) 38.0
 
June 19, 2021, 6 p.m. 1.5 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 38.0 ppb (36) N/A N/A 5.7 μg/m3 (24) 36.0
 
June 19, 2021, 5 p.m. 1.4 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 36.0 ppb (34) N/A N/A 6.9 μg/m3 (29) 34.0
 
June 19, 2021, 4 p.m. 1.7 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 7.0 μg/m3 (30) 33.0
 
June 19, 2021, 3 p.m. 2.1 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 7.0 μg/m3 (30) 33.0
 
June 19, 2021, 2 p.m. 2.4 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 5.7 μg/m3 (24) 30.0
 
June 19, 2021, 1 p.m. 2.8 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 26.0 ppb (25) N/A N/A 6.3 μg/m3 (27) 27.0
 
June 19, 2021, noon 3.6 ppb (4) 1.1 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 19.0 ppb (18) N/A N/A 6.4 μg/m3 (27) 27.0
 
June 19, 2021, 11 a.m. 4.5 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 12.0 ppb (12) N/A N/A 5.5 μg/m3 (23) 23.0
 
June 19, 2021, 10 a.m. 3.8 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 13.0 ppb (13) N/A N/A 5.3 μg/m3 (23) 23.0
 
June 19, 2021, 9 a.m. 4.7 ppb (5) 0.3 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 12.0 ppb (12) N/A N/A 5.3 μg/m3 (23) 23.0
 
June 19, 2021, 8 a.m. 10.9 ppb (11) 4.3 ppb (5) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 12.0 ppb (12) N/A N/A 4.9 μg/m3 (21) 21.0
 
June 19, 2021, 7 a.m. 3.7 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 15.0 ppb (14) N/A N/A 4.7 μg/m3 (20) 20.0
 
June 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) 16.0 ppb (15) N/A N/A 5.5 μg/m3 (23) 23.0
 
June 19, 2021, 5 a.m. 3.1 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 18.0 ppb (17) N/A N/A 4.5 μg/m3 (19) 19.0
 
June 19, 2021, 4 a.m. 3.7 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 18.0 ppb (17) N/A N/A 4.1 μg/m3 (18) 18.0
 
June 19, 2021, 3 a.m. 4.8 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 21.0 ppb (20) N/A N/A 4.5 μg/m3 (19) 20.0
 
June 19, 2021, 2 a.m. 2.6 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 5.1 μg/m3 (22) 24.0
 
June 19, 2021, 1 a.m. 1.9 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 28.0 ppb (26) N/A N/A 4.6 μg/m3 (20) 26.0
 
June 19, 2021, midnight 1.7 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 4.8 μg/m3 (20) 30.0
 
June 18, 2021, 11 p.m. 1.6 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 5.9 μg/m3 (25) 33.0
 
June 18, 2021, 10 p.m. 2.8 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 45.0 ppb (42) N/A N/A 12.5 μg/m3 (52) 52.0
 
June 18, 2021, 9 p.m. 3.7 ppb (4) 1.3 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 53.0 ppb (50) N/A N/A 10.8 μg/m3 (46) 50.0
 
June 18, 2021, 8 p.m. 2.8 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 52.0 ppb (49) N/A N/A 8.8 μg/m3 (37) 49.0
 
June 18, 2021, 7 p.m. 2.9 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 52.0 ppb (49) N/A N/A 8.7 μg/m3 (37) 49.0
 
June 18, 2021, 6 p.m. 3.0 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 51.0 ppb (48) N/A N/A 7.0 μg/m3 (30) 48.0
 
June 18, 2021, 5 p.m. 2.9 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 48.0 ppb (45) N/A N/A 8.4 μg/m3 (36) 45.0
 
June 18, 2021, 4 p.m. 3.7 ppb (4) 1.2 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 44.0 ppb (41) N/A N/A 8.6 μg/m3 (36) 41.0
 
June 18, 2021, 3 p.m. 4.9 ppb (5) 1.6 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 39.0 ppb (37) N/A N/A 8.3 μg/m3 (35) 37.0
 
June 18, 2021, 2 p.m. 3.4 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 39.0 ppb (37) N/A N/A 7.1 μg/m3 (30) 37.0
 
June 18, 2021, 1 p.m. 5.4 ppb (6) 1.3 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 30.0 ppb (28) N/A N/A 7.9 μg/m3 (33) 33.0
 
June 18, 2021, noon 5.9 ppb (6) 1.3 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 22.0 ppb (21) N/A N/A 11.3 μg/m3 (48) 48.0
 
June 18, 2021, 11 a.m. 8.7 ppb (9) 1.2 ppb (2) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 15.0 ppb (14) N/A N/A 12.5 μg/m3 (52) 52.0
 
June 18, 2021, 10 a.m. 7.0 ppb (7) 0.2 ppb (1) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 16.0 ppb (15) N/A N/A 6.5 μg/m3 (28) 28.0
 
June 18, 2021, 9 a.m. 5.5 ppb (6) 0.1 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 20.0 ppb (19) N/A N/A 6.1 μg/m3 (26) 26.0
 
June 18, 2021, 8 a.m. 5.0 ppb (5) 0.2 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 27.0 ppb (25) N/A N/A 5.2 μg/m3 (22) 25.0
 
June 18, 2021, 7 a.m. 4.2 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 31.0 ppb (29) N/A N/A 5.3 μg/m3 (23) 29.0
 
June 18, 2021, 6 a.m. 3.8 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 36.0 ppb (34) N/A N/A 6.4 μg/m3 (27) 34.0
 
June 18, 2021, 5 a.m. 4.4 ppb (5) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 39.0 ppb (37) N/A N/A 6.3 μg/m3 (27) 37.0
 
June 18, 2021, 4 a.m. 3.9 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 41.0 ppb (38) N/A N/A 6.9 μg/m3 (29) 38.0
 
June 18, 2021, 3 a.m. 4.8 ppb (5) 0.4 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 40.0 ppb (38) N/A N/A 8.3 μg/m3 (35) 38.0
 
June 18, 2021, 2 a.m. 3.8 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 43.0 ppb (40) N/A N/A 7.6 μg/m3 (32) 40.0
 
June 18, 2021, 1 a.m. 3.1 ppb (3) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 49.0 ppb (46) N/A N/A 6.4 μg/m3 (27) 46.0
 
June 18, 2021, midnight 2.3 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 54.0 ppb (50) N/A N/A 5.7 μg/m3 (24) 50.0
 
June 17, 2021, 11 p.m. 2.5 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 57.0 ppb (58) N/A N/A 5.5 μg/m3 (23) 58.0
 
June 17, 2021, 10 p.m. 3.4 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 57.0 ppb (58) N/A N/A 5.5 μg/m3 (23) 58.0
 
June 17, 2021, 9 p.m. 3.3 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 58.0 ppb (61) N/A N/A 5.1 μg/m3 (22) 61.0
 
June 17, 2021, 8 p.m. 2.5 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 59.0 ppb (65) N/A N/A 5.1 μg/m3 (22) 65.0
 
June 17, 2021, 7 p.m. 3.0 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 57.0 ppb (58) N/A N/A 5.9 μg/m3 (25) 58.0
 
June 17, 2021, 6 p.m. 3.6 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 54.0 ppb (50) N/A N/A 4.6 μg/m3 (20) 50.0
 
June 17, 2021, 5 p.m. 2.9 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 51.0 ppb (48) N/A N/A 4.9 μg/m3 (21) 48.0
 
June 17, 2021, 4 p.m. 2.9 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 49.0 ppb (46) N/A N/A 5.6 μg/m3 (24) 46.0
 
June 17, 2021, 3 p.m. 4.0 ppb (4) 1.1 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 44.0 ppb (41) N/A N/A 6.5 μg/m3 (28) 41.0
 
June 17, 2021, 2 p.m. 6.2 ppb (6) 1.8 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 38.0 ppb (36) N/A N/A 6.5 μg/m3 (28) 36.0
 
June 17, 2021, 1 p.m. 7.7 ppb (8) 2.0 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 33.0 ppb (31) N/A N/A 7.6 μg/m3 (32) 32.0
 
June 17, 2021, noon 8.8 ppb (9) 2.5 ppb (3) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 27.0 ppb (25) N/A N/A 16.9 μg/m3 (62) 62.0
 
June 17, 2021, 11 a.m. 8.5 ppb (9) 1.7 ppb (2) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 25.0 ppb (24) N/A N/A 12.3 μg/m3 (52) 52.0
 
June 17, 2021, 10 a.m. 7.3 ppb (7) 0.5 ppb (1) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 24.0 ppb (23) N/A N/A 13.0 μg/m3 (53) 53.0
 
June 17, 2021, 9 a.m. 5.8 ppb (6) 0.2 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 27.0 ppb (25) N/A N/A 9.1 μg/m3 (38) 38.0
 
June 17, 2021, 8 a.m. 4.5 ppb (5) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 6.3 μg/m3 (27) 30.0
 
June 17, 2021, 7 a.m. 3.9 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 36.0 ppb (34) N/A N/A 5.9 μg/m3 (25) 34.0
 
June 17, 2021, 6 a.m. 3.5 ppb (4) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 40.0 ppb (38) N/A N/A 6.2 μg/m3 (26) 38.0
 
June 17, 2021, 5 a.m. 3.8 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 43.0 ppb (40) N/A N/A 6.8 μg/m3 (29) 40.0
 
June 17, 2021, 4 a.m. 7.2 ppb (7) 0.3 ppb (1) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 37.0 ppb (35) N/A N/A 10.3 μg/m3 (43) 43.0
 
June 17, 2021, 3 a.m. 6.0 ppb (6) 0.5 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 45.0 ppb (42) N/A N/A 14.0 μg/m3 (55) 55.0
 
June 17, 2021, 2 a.m. 9.5 ppb (9) 0.5 ppb (1) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 41.0 ppb (38) N/A N/A 15.3 μg/m3 (58) 58.0
 
June 17, 2021, 1 a.m. 11.3 ppb (11) 0.9 ppb (1) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 40.0 ppb (38) N/A N/A 14.4 μg/m3 (56) 56.0
 
June 17, 2021, midnight 3.8 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 55.0 ppb (51) N/A N/A 14.3 μg/m3 (56) 56.0
 
June 16, 2021, 11 p.m. 3.4 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 57.0 ppb (58) N/A N/A 14.3 μg/m3 (56) 58.0
 
June 16, 2021, 10 p.m. 3.4 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 57.0 ppb (58) N/A N/A 16.0 μg/m3 (60) 60.0
 
June 16, 2021, 9 p.m. 3.6 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 54.0 ppb (50) N/A N/A 13.7 μg/m3 (55) 55.0
 
June 16, 2021, 8 p.m. 4.3 ppb (5) 0.9 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 51.0 ppb (48) N/A N/A 13.6 μg/m3 (55) 55.0