AQSQID: 380171004

Site Name: Fargo Nw

Location: Reiles Acres, ND

Reporting: True, Located: True

Current AQI: 23.0

Reiles Acres ND, US: 46.933601, -96.854698

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 25, 2019, 3 a.m. 0.9 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 6.0 μg/m3 (5) 3.2 μg/m3 (13) 23.0
 
May 25, 2019, 2 a.m. 0.9 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 12.0 μg/m3 (11) 3.5 μg/m3 (15) 24.0
 
May 25, 2019, 1 a.m. 1.0 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 22.0 μg/m3 (20) 4.2 μg/m3 (18) 27.0
 
May 25, 2019, midnight 1.8 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 39.0 ppb (30) N/A 18.0 μg/m3 (16) 7.1 μg/m3 (30) 30.0
 
May 24, 2019, 11 p.m. 3.4 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 28.0 μg/m3 (25) 8.5 μg/m3 (35) 35.0
 
May 24, 2019, 10 p.m. 2.1 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 31.0 μg/m3 (28) 4.1 μg/m3 (17) 28.0
 
May 24, 2019, 9 p.m. 1.7 ppb (2) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 32.0 μg/m3 (29) 4.6 μg/m3 (19) 29.0
 
May 24, 2019, 8 p.m. 1.9 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 9.0 μg/m3 (8) 4.4 μg/m3 (18) 25.0
 
May 24, 2019, 7 p.m. 2.9 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 5.0 μg/m3 (5) 1.2 μg/m3 (5) 23.0
 
May 24, 2019, 6 p.m. 3.4 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 4.0 μg/m3 (4) 4.2 μg/m3 (18) 21.0
 
May 24, 2019, 5 p.m. 4.6 ppb (4) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 4.0 μg/m3 (4) 3.3 μg/m3 (14) 19.0
 
May 24, 2019, 4 p.m. 6.0 ppb (6) 1.8 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 22.0 ppb (17) N/A 2.0 μg/m3 (2) 0.3 μg/m3 (1) 17.0
 
May 24, 2019, 3 p.m. 5.4 ppb (5) 1.9 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 20.0 ppb (15) N/A 2.0 μg/m3 (2) 3.5 μg/m3 (15) 15.0
 
May 24, 2019, 2 p.m. 9.6 ppb (9) 2.6 ppb (2) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 14.0 ppb (11) N/A 2.0 μg/m3 (2) 3.7 μg/m3 (15) 15.0
 
May 24, 2019, 1 p.m. 11.9 ppb (11) 3.0 ppb (3) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 13.0 ppb (10) N/A 3.0 μg/m3 (3) 2.0 μg/m3 (8) 11.0
 
May 24, 2019, noon 7.6 ppb (7) 1.6 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 15.0 ppb (12) N/A 0.0 μg/m3 (0) 2.4 μg/m3 (10) 12.0
 
May 24, 2019, 11 a.m. 5.4 ppb (5) 1.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 16.0 ppb (12) N/A -4.0 μg/m3 (0) 2.7 μg/m3 (11) 12.0
 
May 24, 2019, 10 a.m. 4.1 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 17.0 ppb (13) N/A -5.0 μg/m3 (0) 1.6 μg/m3 (7) 13.0
 
May 24, 2019, 9 a.m. 4.2 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 17.0 ppb (13) N/A -3.0 μg/m3 (0) 2.1 μg/m3 (9) 13.0
 
May 24, 2019, 8 a.m. 3.0 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 18.0 ppb (14) N/A -2.0 μg/m3 (0) 3.2 μg/m3 (13) 14.0
 
May 24, 2019, 7 a.m. 2.1 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 20.0 ppb (15) N/A -2.0 μg/m3 (0) 3.3 μg/m3 (14) 15.0
 
May 24, 2019, 6 a.m. 3.1 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 20.0 ppb (15) N/A -3.0 μg/m3 (0) 4.7 μg/m3 (20) 20.0
 
May 24, 2019, 5 a.m. 5.0 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 17.0 ppb (13) N/A -2.0 μg/m3 (0) 2.8 μg/m3 (12) 13.0
 
May 24, 2019, 4 a.m. 5.4 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 18.0 ppb (14) N/A 1.0 μg/m3 (1) 2.5 μg/m3 (10) 14.0
 
May 24, 2019, 3 a.m. 9.3 ppb (9) 0.8 ppb (1) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 17.0 ppb (13) N/A 4.0 μg/m3 (4) 4.2 μg/m3 (18) 18.0
 
May 24, 2019, 2 a.m. 8.8 ppb (8) 0.5 ppb (0) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 17.0 ppb (13) N/A 8.0 μg/m3 (7) 3.2 μg/m3 (13) 13.0
 
May 24, 2019, 1 a.m. 7.7 ppb (7) 0.7 ppb (1) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 22.0 ppb (17) N/A 10.0 μg/m3 (9) 3.5 μg/m3 (15) 17.0
 
May 24, 2019, midnight 6.5 ppb (6) 0.7 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 13.0 μg/m3 (12) 5.9 μg/m3 (25) 25.0
 
May 23, 2019, 11 p.m. 3.8 ppb (4) 0.5 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 16.0 μg/m3 (15) 4.3 μg/m3 (18) 22.0
 
May 23, 2019, 10 p.m. 2.6 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 21.0 μg/m3 (19) 3.6 μg/m3 (15) 24.0
 
May 23, 2019, 9 p.m. 4.6 ppb (4) 1.5 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 20.0 μg/m3 (18) 4.0 μg/m3 (17) 23.0
 
May 23, 2019, 8 p.m. 3.7 ppb (3) 1.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 13.0 μg/m3 (12) 6.1 μg/m3 (25) 25.0
 
May 23, 2019, 7 p.m. 3.2 ppb (3) 1.1 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 12.0 μg/m3 (11) 7.8 μg/m3 (32) 32.0
 
May 23, 2019, 6 p.m. 3.9 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 10.0 μg/m3 (9) 6.6 μg/m3 (28) 28.0
 
May 23, 2019, 5 p.m. 2.4 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 4.0 μg/m3 (4) 5.4 μg/m3 (23) 25.0
 
May 23, 2019, 4 p.m. 2.7 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 30.0 ppb (23) N/A -1.0 μg/m3 (0) 4.8 μg/m3 (20) 23.0
 
May 23, 2019, 3 p.m. 1.9 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 2.0 μg/m3 (2) 7.4 μg/m3 (31) 31.0
 
May 23, 2019, 2 p.m. 1.8 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 5.0 μg/m3 (5) 3.8 μg/m3 (16) 22.0
 
May 23, 2019, 1 p.m. 3.5 ppb (3) 0.9 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 4.0 μg/m3 (4) 3.5 μg/m3 (15) 20.0
 
May 23, 2019, noon 3.1 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 3.0 μg/m3 (3) 3.8 μg/m3 (16) 19.0
 
May 23, 2019, 11 a.m. 1.5 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 2.0 μg/m3 (2) 5.8 μg/m3 (24) 24.0
 
May 23, 2019, 10 a.m. 1.1 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 4.0 μg/m3 (4) 1.6 μg/m3 (7) 20.0
 
May 23, 2019, 9 a.m. 1.0 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 5.0 μg/m3 (5) 1.7 μg/m3 (7) 20.0
 
May 23, 2019, 8 a.m. 0.9 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 3.0 μg/m3 (3) 1.4 μg/m3 (6) 21.0
 
May 23, 2019, 7 a.m. 0.7 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 6.0 μg/m3 (5) 2.4 μg/m3 (10) 22.0
 
May 23, 2019, 6 a.m. 0.8 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 11.0 μg/m3 (10) 4.0 μg/m3 (17) 22.0
 
May 23, 2019, 5 a.m. 1.2 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 0.0 μg/m3 (0) 3.7 μg/m3 (15) 22.0
 
May 23, 2019, 4 a.m. 1.9 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 3.0 μg/m3 (3) 4.4 μg/m3 (18) 22.0
 
May 23, 2019, 3 a.m. 1.1 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 29.0 ppb (22) N/A -2.0 μg/m3 (0) 3.0 μg/m3 (12) 22.0
 
May 23, 2019, 2 a.m. 1.7 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 29.0 ppb (22) N/A -4.0 μg/m3 (0) 3.9 μg/m3 (16) 22.0
 
May 23, 2019, 1 a.m. 2.4 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 29.0 ppb (22) N/A -2.0 μg/m3 (0) 3.0 μg/m3 (12) 22.0
 
May 23, 2019, midnight 3.8 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 29.0 ppb (22) N/A -1.0 μg/m3 (0) 2.3 μg/m3 (10) 22.0
 
May 22, 2019, 11 p.m. 3.0 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 2.0 μg/m3 (2) 0.2 μg/m3 (1) 24.0
 
May 22, 2019, 10 p.m. 3.3 ppb (3) 1.1 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 1.0 μg/m3 (1) 2.4 μg/m3 (10) 23.0
 
May 22, 2019, 9 p.m. 3.8 ppb (4) 1.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 29.0 ppb (22) N/A -1.0 μg/m3 (0) 5.0 μg/m3 (21) 22.0
 
May 22, 2019, 8 p.m. 3.4 ppb (3) 1.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 30.0 ppb (23) N/A -2.0 μg/m3 (0) 4.8 μg/m3 (20) 23.0
 
May 22, 2019, 7 p.m. 4.3 ppb (4) 1.8 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 30.0 ppb (23) N/A -1.0 μg/m3 (0) 4.3 μg/m3 (18) 23.0
 
May 22, 2019, 6 p.m. 3.9 ppb (4) 1.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 1.0 μg/m3 (1) 5.3 μg/m3 (22) 22.0
 
May 22, 2019, 5 p.m. 3.8 ppb (4) 1.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 29.0 ppb (22) N/A -3.0 μg/m3 (0) 5.3 μg/m3 (22) 22.0
 
May 22, 2019, 4 p.m. 4.0 ppb (4) 1.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 29.0 ppb (22) N/A -1.0 μg/m3 (0) 4.2 μg/m3 (18) 22.0
 
May 22, 2019, 3 p.m. 3.3 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 1.0 μg/m3 (1) 4.4 μg/m3 (18) 23.0
 
May 22, 2019, 2 p.m. 3.3 ppb (3) 1.2 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 0.0 μg/m3 (0) 1.8 μg/m3 (8) 23.0
 
May 22, 2019, 1 p.m. 5.1 ppb (5) 1.8 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 2.0 μg/m3 (2) 2.4 μg/m3 (10) 23.0
 
May 22, 2019, noon 3.5 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (25) N/A 1.0 μg/m3 (1) 2.4 μg/m3 (10) 25.0
 
May 22, 2019, 11 a.m. 3.4 ppb (3) 0.9 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 34.0 ppb (26) N/A -1.0 μg/m3 (0) 2.9 μg/m3 (12) 26.0
 
May 22, 2019, 10 a.m. 1.8 ppb (2) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 38.0 ppb (29) N/A N/A 1.6 μg/m3 (7) 29.0
 
May 22, 2019, 9 a.m. 2.1 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 39.0 ppb (30) N/A N/A 1.0 μg/m3 (4) 30.0
 
May 22, 2019, 8 a.m. 1.2 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 38.0 ppb (29) N/A N/A 6.5 μg/m3 (27) 29.0
 
May 22, 2019, 7 a.m. 1.7 ppb (2) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 10.0 μg/m3 (42) 42.0
 
May 22, 2019, 6 a.m. 1.8 ppb (2) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 38.0 ppb (29) N/A N/A 1.3 μg/m3 (5) 29.0
 
May 22, 2019, 5 a.m. 1.6 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 37.0 ppb (28) N/A -5.0 μg/m3 (0) 1.0 μg/m3 (4) 28.0
 
May 22, 2019, 4 a.m. 1.7 ppb (2) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 1.0 μg/m3 (1) 0.7 μg/m3 (3) 25.0
 
May 22, 2019, 3 a.m. 3.8 ppb (4) 0.4 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (24) N/A 1.0 μg/m3 (1) 1.1 μg/m3 (5) 24.0
 
May 22, 2019, 2 a.m. 3.8 ppb (4) 0.5 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 4.0 μg/m3 (4) 2.6 μg/m3 (11) 25.0
 
May 22, 2019, 1 a.m. 4.0 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (26) N/A 11.0 μg/m3 (10) 2.7 μg/m3 (11) 26.0
 
May 22, 2019, midnight 4.8 ppb (4) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 36.0 ppb (28) N/A 21.0 μg/m3 (19) 1.8 μg/m3 (8) 28.0
 
May 21, 2019, 11 p.m. 3.6 ppb (3) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 40.0 ppb (31) N/A 18.0 μg/m3 (16) 1.4 μg/m3 (6) 31.0
 
May 21, 2019, 10 p.m. 3.8 ppb (4) 1.2 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 40.0 ppb (31) N/A 11.0 μg/m3 (10) 3.2 μg/m3 (13) 31.0
 
May 21, 2019, 9 p.m. 4.0 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 39.0 ppb (30) N/A 24.0 μg/m3 (22) 4.3 μg/m3 (18) 30.0
 
May 21, 2019, 8 p.m. 4.7 ppb (4) 1.9 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 39.0 ppb (30) N/A 29.0 μg/m3 (26) 3.8 μg/m3 (16) 30.0
 
May 21, 2019, 7 p.m. 3.8 ppb (4) 1.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 74.0 μg/m3 (60) 5.2 μg/m3 (22) 60.0
 
May 21, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 56.0 μg/m3 (50) 4.5 μg/m3 (19) 50.0
 
May 21, 2019, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 20.0 μg/m3 (18) -0.6 μg/m3 (0) 18.0
 
May 21, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A N/A 28.0
 
May 21, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 19.0 μg/m3 (17) 3.8 μg/m3 (16) 25.0
 
May 21, 2019, 2 p.m. 7.6 ppb (7) 2.8 ppb (3) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 21.0 μg/m3 (19) 6.5 μg/m3 (27) 27.0
 
May 21, 2019, 1 p.m. 21.1 ppb (20) 8.9 ppb (8) N/A 12.0 ppb (11) N/A 1.0 ppb (1) 15.0 ppb (12) N/A 39.0 μg/m3 (35) 8.3 μg/m3 (35) 35.0
 
May 21, 2019, noon 32.7 ppb (30) 14.7 ppb (14) N/A 18.0 ppb (17) N/A 1.0 ppb (1) 7.0 ppb (5) N/A 18.0 μg/m3 (16) 8.9 μg/m3 (37) 37.0
 
May 21, 2019, 11 a.m. 48.2 ppb (45) 26.8 ppb (25) N/A 21.0 ppb (19) N/A 1.0 ppb (1) 2.0 ppb (2) N/A 18.0 μg/m3 (16) 7.1 μg/m3 (30) 45.0
 
May 21, 2019, 10 a.m. 41.5 ppb (38) 23.3 ppb (22) N/A 18.0 ppb (17) N/A 1.0 ppb (1) 1.0 ppb (1) N/A 37.0 μg/m3 (34) 11.8 μg/m3 (49) 49.0
 
May 21, 2019, 9 a.m. 47.0 ppb (44) 24.2 ppb (22) N/A 23.0 ppb (21) N/A 1.0 ppb (1) 1.0 ppb (1) N/A 37.0 μg/m3 (34) 14.0 μg/m3 (54) 54.0
 
May 21, 2019, 8 a.m. 37.7 ppb (35) 16.9 ppb (16) N/A 21.0 ppb (19) N/A 1.0 ppb (1) 1.0 ppb (1) N/A 21.0 μg/m3 (19) 11.1 μg/m3 (46) 46.0
 
May 21, 2019, 7 a.m. 20.3 ppb (19) 2.8 ppb (3) N/A 17.0 ppb (16) N/A 1.0 ppb (1) 5.0 ppb (4) N/A N/A 9.8 μg/m3 (41) 41.0
 
May 21, 2019, 6 a.m. 24.0 ppb (22) 9.3 ppb (9) N/A 15.0 ppb (14) N/A 1.0 ppb (1) 8.0 ppb (6) N/A N/A 5.6 μg/m3 (23) 23.0
 
May 21, 2019, 5 a.m. 16.7 ppb (15) 2.3 ppb (2) N/A 14.0 ppb (13) N/A 1.0 ppb (1) 14.0 ppb (11) N/A N/A 4.3 μg/m3 (18) 18.0
 
May 21, 2019, 4 a.m. 11.8 ppb (11) 0.7 ppb (1) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 18.0 ppb (14) N/A N/A 2.5 μg/m3 (10) 14.0
 
May 21, 2019, 3 a.m. 10.9 ppb (10) 2.0 ppb (2) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 0.0 μg/m3 (0) 1.8 μg/m3 (8) 19.0
 
May 21, 2019, 2 a.m. 15.4 ppb (14) 0.8 ppb (1) N/A 15.0 ppb (14) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 6.0 μg/m3 (5) 3.6 μg/m3 (15) 21.0
 
May 21, 2019, 1 a.m. 11.0 ppb (10) 0.4 ppb (0) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 6.0 μg/m3 (5) 1.7 μg/m3 (7) 28.0
 
May 21, 2019, midnight 5.2 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 44.0 ppb (34) N/A 5.0 μg/m3 (5) 4.3 μg/m3 (18) 34.0
 
May 20, 2019, 11 p.m. 4.3 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 44.0 ppb (34) N/A 6.0 μg/m3 (5) 6.4 μg/m3 (27) 34.0
 
May 20, 2019, 10 p.m. 4.5 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 44.0 ppb (34) N/A 9.0 μg/m3 (8) 4.8 μg/m3 (20) 34.0
 
May 20, 2019, 9 p.m. 2.8 ppb (3) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 44.0 ppb (34) N/A 11.0 μg/m3 (10) 2.8 μg/m3 (12) 34.0
 
May 20, 2019, 8 p.m. 2.8 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 42.0 ppb (32) N/A 26.0 μg/m3 (24) 4.3 μg/m3 (18) 32.0
 
May 20, 2019, 7 p.m. 2.9 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 40.0 ppb (31) N/A 38.0 μg/m3 (35) 4.7 μg/m3 (20) 35.0
 
May 20, 2019, 6 p.m. 2.1 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 36.0 μg/m3 (33) 5.1 μg/m3 (21) 33.0
 
May 20, 2019, 5 p.m. 2.2 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 32.0 μg/m3 (29) 5.1 μg/m3 (21) 29.0
 
May 20, 2019, 4 p.m. 2.8 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 26.0 μg/m3 (24) 7.8 μg/m3 (32) 32.0
 
May 20, 2019, 3 p.m. 5.3 ppb (5) 2.1 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 25.0 μg/m3 (23) 5.9 μg/m3 (25) 25.0
 
May 20, 2019, 2 p.m. 6.2 ppb (6) 2.7 ppb (3) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 21.0 ppb (16) N/A 50.0 μg/m3 (45) 6.8 μg/m3 (28) 45.0
 
May 20, 2019, 1 p.m. 18.6 ppb (17) 11.0 ppb (10) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 11.0 ppb (8) N/A 15.0 μg/m3 (14) 6.4 μg/m3 (27) 27.0
 
May 20, 2019, noon 14.8 ppb (14) 9.1 ppb (8) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 5.0 ppb (4) N/A 1.0 μg/m3 (1) 3.7 μg/m3 (15) 15.0
 
May 20, 2019, 11 a.m. 16.1 ppb (15) 9.3 ppb (9) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 2.0 ppb (2) N/A -1.0 μg/m3 (0) 1.9 μg/m3 (8) 15.0
 
May 20, 2019, 10 a.m. 7.2 ppb (7) 1.2 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 3.0 ppb (2) N/A 0.0 μg/m3 (0) 2.7 μg/m3 (11) 11.0
 
May 20, 2019, 9 a.m. 4.0 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 6.0 ppb (5) N/A 1.0 μg/m3 (1) 2.5 μg/m3 (10) 10.0
 
May 20, 2019, 8 a.m. 5.2 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 7.0 ppb (5) N/A 1.0 μg/m3 (1) 3.1 μg/m3 (13) 13.0
 
May 20, 2019, 7 a.m. 7.0 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 5.0 ppb (4) N/A 2.0 μg/m3 (2) 4.2 μg/m3 (18) 18.0
 
May 20, 2019, 6 a.m. 6.2 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 7.0 ppb (5) N/A 1.0 μg/m3 (1) 4.9 μg/m3 (20) 20.0
 
May 20, 2019, 5 a.m. 4.8 ppb (4) 0.1 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 9.0 ppb (7) N/A 0.0 μg/m3 (0) 4.5 μg/m3 (19) 19.0
 
May 20, 2019, 4 a.m. 3.9 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 12.0 ppb (9) N/A 0.0 μg/m3 (0) 4.2 μg/m3 (18) 18.0
 
May 20, 2019, 3 a.m. 3.4 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 14.0 ppb (11) N/A -2.0 μg/m3 (0) 3.2 μg/m3 (13) 13.0
 
May 20, 2019, 2 a.m. 5.1 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 16.0 ppb (12) N/A 3.0 μg/m3 (3) 2.5 μg/m3 (10) 12.0
 
May 20, 2019, 1 a.m. 13.2 ppb (12) 1.6 ppb (1) N/A 12.0 ppb (11) N/A 1.0 ppb (1) 13.0 ppb (10) N/A 7.0 μg/m3 (6) 4.1 μg/m3 (17) 17.0
 
May 20, 2019, midnight 4.5 ppb (4) 1.2 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 16.0 μg/m3 (15) 5.5 μg/m3 (23) 23.0
 
May 19, 2019, 11 p.m. 4.6 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 15.0 μg/m3 (14) 3.6 μg/m3 (15) 25.0
 
May 19, 2019, 10 p.m. 1.9 ppb (2) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 14.0 μg/m3 (13) 2.6 μg/m3 (11) 25.0
 
May 19, 2019, 9 p.m. 1.9 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 5.0 μg/m3 (5) 1.9 μg/m3 (8) 23.0
 
May 19, 2019, 8 p.m. 1.3 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 5.0 μg/m3 (5) 3.4 μg/m3 (14) 22.0
 
May 19, 2019, 7 p.m. 1.4 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 6.0 μg/m3 (5) 4.3 μg/m3 (18) 20.0
 
May 19, 2019, 6 p.m. 1.3 ppb (1) 0.8 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 2.0 μg/m3 (2) 3.9 μg/m3 (16) 21.0
 
May 19, 2019, 5 p.m. 1.7 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 3.0 μg/m3 (3) 5.2 μg/m3 (22) 22.0
 
May 19, 2019, 4 p.m. 1.0 ppb (1) 0.5 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 3.0 μg/m3 (3) 4.3 μg/m3 (18) 20.0
 
May 19, 2019, 3 p.m. 0.9 ppb (1) 0.4 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 2.0 μg/m3 (2) 3.9 μg/m3 (16) 20.0
 
May 19, 2019, 2 p.m. 0.9 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 0.0 μg/m3 (0) 2.3 μg/m3 (10) 21.0
 
May 19, 2019, 1 p.m. 1.2 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (18) N/A -1.0 μg/m3 (0) 1.9 μg/m3 (8) 18.0
 
May 19, 2019, noon 1.3 ppb (1) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 26.0 ppb (20) N/A -2.0 μg/m3 (0) 3.1 μg/m3 (13) 20.0
 
May 19, 2019, 11 a.m. 0.5 ppb (0) 0.2 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 26.0 ppb (20) N/A -2.0 μg/m3 (0) 2.3 μg/m3 (10) 20.0
 
May 19, 2019, 10 a.m. 1.1 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (18) N/A -1.0 μg/m3 (0) 0.4 μg/m3 (2) 18.0
 
May 19, 2019, 9 a.m. 1.3 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (21) N/A -3.0 μg/m3 (0) 2.7 μg/m3 (11) 21.0
 
May 19, 2019, 8 a.m. 0.8 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 25.0 ppb (19) N/A -3.0 μg/m3 (0) 4.5 μg/m3 (19) 19.0
 
May 19, 2019, 7 a.m. 1.6 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 24.0 ppb (18) N/A -1.0 μg/m3 (0) 5.6 μg/m3 (23) 23.0
 
May 19, 2019, 6 a.m. 0.9 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 0.0 μg/m3 (0) 6.5 μg/m3 (27) 27.0
 
May 19, 2019, 5 a.m. 1.5 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 24.0 ppb (18) N/A -1.0 μg/m3 (0) 4.2 μg/m3 (18) 18.0
 
May 19, 2019, 4 a.m. 0.8 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (18) N/A 0.0 μg/m3 (0) 3.0 μg/m3 (12) 18.0
 
May 19, 2019, 3 a.m. 0.9 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 2.0 μg/m3 (2) 2.8 μg/m3 (12) 21.0
 
May 19, 2019, 2 a.m. 1.2 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 2.0 μg/m3 (2) 5.1 μg/m3 (21) 22.0
 
May 19, 2019, 1 a.m. 1.1 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 27.0 ppb (21) N/A -1.0 μg/m3 (0) 4.7 μg/m3 (20) 21.0
 
May 19, 2019, midnight 1.9 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 29.0 ppb (22) N/A -4.0 μg/m3 (0) 3.4 μg/m3 (14) 22.0
 
May 18, 2019, 11 p.m. 1.2 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 35.0 ppb (27) N/A -2.0 μg/m3 (0) 4.3 μg/m3 (18) 27.0
 
May 18, 2019, 10 p.m. 0.9 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 3.0 μg/m3 (3) 3.3 μg/m3 (14) 28.0
 
May 18, 2019, 9 p.m. 1.3 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 6.0 μg/m3 (5) 4.9 μg/m3 (20) 29.0
 
May 18, 2019, 8 p.m. 1.2 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (30) N/A 5.0 μg/m3 (5) 2.0 μg/m3 (8) 30.0
 
May 18, 2019, 7 p.m. 1.4 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (28) N/A 5.0 μg/m3 (5) 2.6 μg/m3 (11) 28.0
 
May 18, 2019, 6 p.m. 2.4 ppb (2) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (28) N/A -1.0 μg/m3 (0) 3.1 μg/m3 (13) 28.0
 
May 18, 2019, 5 p.m. 2.1 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 39.0 ppb (30) N/A -1.0 μg/m3 (0) 4.2 μg/m3 (18) 30.0
 
May 18, 2019, 4 p.m. 2.0 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 39.0 ppb (30) N/A -1.0 μg/m3 (0) 4.1 μg/m3 (17) 30.0
 
May 18, 2019, 3 p.m. 1.8 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 37.0 ppb (28) N/A -4.0 μg/m3 (0) 3.5 μg/m3 (15) 28.0
 
May 18, 2019, 2 p.m. 1.6 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 37.0 ppb (28) N/A -5.0 μg/m3 (0) 4.5 μg/m3 (19) 28.0
 
May 18, 2019, 1 p.m. 1.5 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 2.0 μg/m3 (2) 5.0 μg/m3 (21) 25.0
 
May 18, 2019, noon 2.1 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 5.0 μg/m3 (5) 5.7 μg/m3 (24) 24.0
 
May 18, 2019, 11 a.m. 3.3 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (19) N/A 7.0 μg/m3 (6) 4.8 μg/m3 (20) 20.0
 
May 18, 2019, 10 a.m. 2.1 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 8.0 μg/m3 (7) 4.7 μg/m3 (20) 20.0
 
May 18, 2019, 9 a.m. 2.6 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 25.0 ppb (19) N/A -4.0 μg/m3 (0) 2.6 μg/m3 (11) 19.0
 
May 18, 2019, 8 a.m. 2.7 ppb (3) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 22.0 ppb (17) N/A -2.0 μg/m3 (0) 3.8 μg/m3 (16) 17.0
 
May 18, 2019, 7 a.m. 2.5 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 23.0 ppb (18) N/A 4.0 μg/m3 (4) 5.1 μg/m3 (21) 21.0
 
May 18, 2019, 6 a.m. 2.0 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 8.0 μg/m3 (7) 5.8 μg/m3 (24) 24.0
 
May 18, 2019, 5 a.m. 3.1 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 21.0 ppb (16) N/A 11.0 μg/m3 (10) 5.4 μg/m3 (23) 23.0
 
May 18, 2019, 4 a.m. 3.0 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 9.0 μg/m3 (8) 3.3 μg/m3 (14) 19.0