AQSQID: 380171004

Site Name: Fargo Nw

Location: Reiles Acres, ND

Reporting: True, Located: True

Current AQI: 40.0

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
March 23, 2019, 8 p.m. 0.0 ppb (0) 0.5 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 52.0 ppb (40) N/A 13.0 μg/m3 (12) 5.8 μg/m3 (24) 40.0
 
March 23, 2019, 7 p.m. 0.0 ppb (0) 0.9 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 51.0 ppb (39) N/A 14.0 μg/m3 (13) 5.5 μg/m3 (23) 39.0
 
March 23, 2019, 6 p.m. 0.0 ppb (0) 0.9 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 50.0 ppb (38) N/A 20.0 μg/m3 (18) 8.3 μg/m3 (35) 38.0
 
March 23, 2019, 5 p.m. 0.0 ppb (0) 1.4 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 46.0 ppb (35) N/A 12.0 μg/m3 (11) 8.5 μg/m3 (35) 35.0
 
March 23, 2019, 4 p.m. 0.0 ppb (0) 1.5 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 17.0 μg/m3 (15) 9.0 μg/m3 (38) 38.0
 
March 23, 2019, 3 p.m. 0.1 ppb (0) 1.8 ppb (2) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 41.0 ppb (32) N/A 18.0 μg/m3 (16) 6.5 μg/m3 (27) 32.0
 
March 23, 2019, 2 p.m. 1.3 ppb (1) 1.8 ppb (2) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 10.0 μg/m3 (9) 8.6 μg/m3 (36) 36.0
 
March 23, 2019, 1 p.m. 8.6 ppb (8) 2.8 ppb (3) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 9.0 μg/m3 (8) 11.4 μg/m3 (48) 48.0
 
March 23, 2019, noon 3.4 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 6.0 μg/m3 (5) 6.1 μg/m3 (25) 25.0
 
March 23, 2019, 11 a.m. 1.4 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 9.0 μg/m3 (8) 7.8 μg/m3 (32) 32.0
 
March 23, 2019, 10 a.m. 2.2 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 10.0 μg/m3 (9) 9.8 μg/m3 (41) 41.0
 
March 23, 2019, 9 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 7.0 μg/m3 (6) 6.8 μg/m3 (28) 28.0
 
March 23, 2019, 8 a.m. 6.7 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 10.0 μg/m3 (9) 8.6 μg/m3 (36) 36.0
 
March 23, 2019, 7 a.m. 12.1 ppb (11) 0.0 ppb (0) N/A 12.0 ppb (11) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 13.0 μg/m3 (12) 10.3 μg/m3 (43) 43.0
 
March 23, 2019, 6 a.m. 21.0 ppb (19) 0.2 ppb (0) N/A 21.0 ppb (19) N/A 1.0 ppb (1) 20.0 ppb (15) N/A 23.0 μg/m3 (21) 12.4 μg/m3 (51) 51.0
 
March 23, 2019, 5 a.m. 37.4 ppb (35) 3.5 ppb (3) N/A 34.0 ppb (31) N/A 1.0 ppb (1) 7.0 ppb (5) N/A 40.0 μg/m3 (36) 17.8 μg/m3 (62) 62.0
 
March 23, 2019, 4 a.m. 30.6 ppb (28) 3.7 ppb (3) N/A 27.0 ppb (25) N/A 1.0 ppb (1) 11.0 ppb (8) N/A 70.0 μg/m3 (58) N/A 58.0
 
March 23, 2019, 3 a.m. 11.8 ppb (11) 0.0 ppb (0) N/A 12.0 ppb (11) N/A 1.0 ppb (1) 26.0 ppb (20) N/A 5.0 μg/m3 (5) 4.9 μg/m3 (20) 20.0
 
March 23, 2019, 2 a.m. 10.2 ppb (9) 0.0 ppb (0) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 29.0 ppb (22) N/A -4.0 μg/m3 (0) 5.1 μg/m3 (21) 22.0
 
March 23, 2019, 1 a.m. 4.4 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 37.0 ppb (28) N/A -2.0 μg/m3 (0) 2.0 μg/m3 (8) 28.0
 
March 23, 2019, midnight 4.8 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 39.0 ppb (30) N/A 6.0 μg/m3 (5) 2.9 μg/m3 (12) 30.0
 
March 22, 2019, 11 p.m. 2.7 ppb (3) 1.8 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 44.0 ppb (34) N/A 12.0 μg/m3 (11) 3.0 μg/m3 (12) 34.0
 
March 22, 2019, 10 p.m. 3.3 ppb (3) 2.5 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 50.0 ppb (38) N/A 17.0 μg/m3 (15) 4.6 μg/m3 (19) 38.0
 
March 22, 2019, 9 p.m. 1.2 ppb (1) 1.9 ppb (2) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 52.0 ppb (40) N/A 26.0 μg/m3 (24) 6.3 μg/m3 (26) 40.0
 
March 22, 2019, 8 p.m. 1.4 ppb (1) 2.3 ppb (2) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 51.0 ppb (39) N/A 25.0 μg/m3 (23) 4.6 μg/m3 (19) 39.0
 
March 22, 2019, 7 p.m. 1.3 ppb (1) 2.3 ppb (2) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 49.0 ppb (38) N/A 20.0 μg/m3 (18) 5.6 μg/m3 (23) 38.0
 
March 22, 2019, 6 p.m. 3.3 ppb (3) 3.4 ppb (3) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 45.0 ppb (35) N/A 19.0 μg/m3 (17) 5.1 μg/m3 (21) 35.0
 
March 22, 2019, 5 p.m. 0.0 ppb (0) 2.0 ppb (2) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 44.0 ppb (34) N/A 20.0 μg/m3 (18) 4.6 μg/m3 (19) 34.0
 
March 22, 2019, 4 p.m. 2.4 ppb (2) 3.6 ppb (3) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 40.0 ppb (31) N/A 21.0 μg/m3 (19) 2.9 μg/m3 (12) 31.0
 
March 22, 2019, 3 p.m. 5.2 ppb (5) 5.0 ppb (5) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 25.0 μg/m3 (23) 5.5 μg/m3 (23) 28.0
 
March 22, 2019, 2 p.m. 17.7 ppb (16) 11.3 ppb (10) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 39.0 μg/m3 (35) 7.6 μg/m3 (32) 35.0
 
March 22, 2019, 1 p.m. 20.1 ppb (19) 8.1 ppb (8) N/A 12.0 ppb (11) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 15.0 μg/m3 (14) 4.7 μg/m3 (20) 20.0
 
March 22, 2019, noon 15.7 ppb (15) 1.9 ppb (2) N/A 14.0 ppb (13) N/A 1.0 ppb (1) 24.0 ppb (18) N/A 3.0 μg/m3 (3) 3.8 μg/m3 (16) 18.0
 
March 22, 2019, 11 a.m. 10.5 ppb (10) 1.1 ppb (1) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 2.0 μg/m3 (2) 3.2 μg/m3 (13) 22.0
 
March 22, 2019, 10 a.m. 2.1 ppb (2) 1.3 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 2.0 μg/m3 (2) 3.6 μg/m3 (15) 28.0
 
March 22, 2019, 9 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 3.0 μg/m3 (3) 4.8 μg/m3 (20) 33.0
 
March 22, 2019, 8 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 41.0 ppb (32) N/A 3.0 μg/m3 (3) 2.3 μg/m3 (10) 32.0
 
March 22, 2019, 7 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 41.0 ppb (32) N/A 2.0 μg/m3 (2) 3.7 μg/m3 (15) 32.0
 
March 22, 2019, 6 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 44.0 ppb (34) N/A 0.0 μg/m3 (0) 3.4 μg/m3 (14) 34.0
 
March 22, 2019, 5 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 2.0 μg/m3 (2) 5.2 μg/m3 (22) 22.0
 
March 22, 2019, 4 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 3.0 μg/m3 (3) 3.5 μg/m3 (15) 15.0
 
March 22, 2019, 3 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 2.0 μg/m3 (2) 4.4 μg/m3 (18) 18.0
 
March 22, 2019, 2 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A -1.0 μg/m3 (0) 6.4 μg/m3 (27) 27.0
 
March 22, 2019, 1 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A -2.0 μg/m3 (0) 4.1 μg/m3 (17) 17.0
 
March 22, 2019, midnight 0.0 ppb (0) 0.2 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 50.0 ppb (38) N/A 3.0 μg/m3 (3) 6.1 μg/m3 (25) 38.0
 
March 21, 2019, 11 p.m. 0.0 ppb (0) 0.4 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 53.0 ppb (41) N/A 8.0 μg/m3 (7) 9.0 μg/m3 (38) 41.0
 
March 21, 2019, 10 p.m. 0.0 ppb (0) 0.6 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 54.0 ppb (42) N/A 19.0 μg/m3 (17) 9.0 μg/m3 (38) 42.0
 
March 21, 2019, 9 p.m. 5.7 ppb (5) 3.0 ppb (3) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 52.0 ppb (40) N/A 26.0 μg/m3 (24) 10.9 μg/m3 (45) 45.0
 
March 21, 2019, 8 p.m. 1.4 ppb (1) 1.2 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 57.0 ppb (44) N/A 32.0 μg/m3 (29) 10.6 μg/m3 (44) 44.0
 
March 21, 2019, 7 p.m. 0.0 ppb (0) 0.7 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 58.0 ppb (45) N/A 26.0 μg/m3 (24) 16.8 μg/m3 (60) 60.0
 
March 21, 2019, 6 p.m. 0.0 ppb (0) 0.3 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 58.0 ppb (45) N/A 29.0 μg/m3 (26) 12.2 μg/m3 (50) 50.0
 
March 21, 2019, 5 p.m. 0.0 ppb (0) 0.4 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 57.0 ppb (44) N/A 32.0 μg/m3 (29) 15.4 μg/m3 (57) 57.0
 
March 21, 2019, 4 p.m. 1.3 ppb (1) 1.2 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 51.0 ppb (39) N/A 21.0 μg/m3 (19) 13.6 μg/m3 (53) 53.0
 
March 21, 2019, 3 p.m. 0.4 ppb (0) 1.1 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 48.0 ppb (37) N/A 19.0 μg/m3 (17) 17.7 μg/m3 (62) 62.0
 
March 21, 2019, 2 p.m. 1.3 ppb (1) 1.4 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 45.0 ppb (35) N/A 13.0 μg/m3 (12) 9.6 μg/m3 (40) 40.0
 
March 21, 2019, 1 p.m. 2.9 ppb (3) 1.1 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 42.0 ppb (32) N/A 7.0 μg/m3 (6) 7.3 μg/m3 (30) 32.0
 
March 21, 2019, noon 2.6 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 39.0 ppb (30) N/A 5.0 μg/m3 (5) 10.2 μg/m3 (42) 42.0
 
March 21, 2019, 11 a.m. 0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 40.0 ppb (31) N/A 4.0 μg/m3 (4) 6.4 μg/m3 (27) 31.0
 
March 21, 2019, 10 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 41.0 ppb (32) N/A 3.0 μg/m3 (3) 3.9 μg/m3 (16) 32.0
 
March 21, 2019, 9 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 42.0 ppb (32) N/A 4.0 μg/m3 (4) 5.9 μg/m3 (25) 32.0
 
March 21, 2019, 8 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 42.0 ppb (32) N/A 6.0 μg/m3 (5) 8.1 μg/m3 (34) 34.0
 
March 21, 2019, 7 a.m. 4.4 ppb (4) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 34.0 ppb (26) N/A 3.0 μg/m3 (3) 7.6 μg/m3 (32) 32.0
 
March 21, 2019, 6 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 41.0 ppb (32) N/A 1.0 μg/m3 (1) 5.2 μg/m3 (22) 32.0
 
March 21, 2019, 5 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 44.0 ppb (34) N/A 0.0 μg/m3 (0) 4.9 μg/m3 (20) 34.0
 
March 21, 2019, 4 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 46.0 ppb (35) N/A 1.0 μg/m3 (1) 4.5 μg/m3 (19) 35.0
 
March 21, 2019, 3 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 47.0 ppb (36) N/A 3.0 μg/m3 (3) 3.4 μg/m3 (14) 36.0
 
March 21, 2019, 2 a.m. 0.0 ppb (0) 0.3 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 48.0 ppb (37) N/A 5.0 μg/m3 (5) 4.2 μg/m3 (18) 37.0
 
March 21, 2019, 1 a.m. 0.0 ppb (0) 0.1 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 49.0 ppb (38) N/A 8.0 μg/m3 (7) 4.9 μg/m3 (20) 38.0
 
March 21, 2019, midnight 0.0 ppb (0) 0.3 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 48.0 ppb (37) N/A 11.0 μg/m3 (10) 5.4 μg/m3 (23) 37.0
 
March 20, 2019, 11 p.m. 2.0 ppb (2) 1.3 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 48.0 ppb (37) N/A 11.0 μg/m3 (10) 8.1 μg/m3 (34) 37.0
 
March 20, 2019, 10 p.m. 3.1 ppb (3) 2.5 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 50.0 ppb (38) N/A 6.0 μg/m3 (5) 3.6 μg/m3 (15) 38.0
 
March 20, 2019, 9 p.m. 1.4 ppb (1) 2.2 ppb (2) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 51.0 ppb (39) N/A 1.0 μg/m3 (1) 6.7 μg/m3 (28) 39.0
 
March 20, 2019, 8 p.m. 0.0 ppb (0) 1.1 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 52.0 ppb (40) N/A 2.0 μg/m3 (2) 7.8 μg/m3 (32) 40.0
 
March 20, 2019, 7 p.m. 0.0 ppb (0) 1.3 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 53.0 ppb (41) N/A 2.0 μg/m3 (2) 6.0 μg/m3 (25) 41.0
 
March 20, 2019, 6 p.m. 0.0 ppb (0) 1.6 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 52.0 ppb (40) N/A 5.0 μg/m3 (5) 5.5 μg/m3 (23) 40.0
 
March 20, 2019, 5 p.m. 0.0 ppb (0) 1.8 ppb (2) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 50.0 ppb (38) N/A 6.0 μg/m3 (5) 5.6 μg/m3 (23) 38.0
 
March 20, 2019, 4 p.m. 0.6 ppb (1) 2.2 ppb (2) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 47.0 ppb (36) N/A 6.0 μg/m3 (5) 5.0 μg/m3 (21) 36.0
 
March 20, 2019, 3 p.m. 0.8 ppb (1) 2.0 ppb (2) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 46.0 ppb (35) N/A 17.0 μg/m3 (15) 7.5 μg/m3 (31) 35.0
 
March 20, 2019, 2 p.m. 3.9 ppb (4) 2.6 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 44.0 ppb (34) N/A 15.0 μg/m3 (14) 8.4 μg/m3 (35) 35.0
 
March 20, 2019, 1 p.m. 3.0 ppb (3) 1.5 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 6.0 μg/m3 (5) 5.0 μg/m3 (21) 33.0
 
March 20, 2019, noon 0.0 ppb (0) 0.5 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 47.0 ppb (36) N/A 6.0 μg/m3 (5) 4.2 μg/m3 (18) 36.0
 
March 20, 2019, 11 a.m. 0.0 ppb (0) 0.4 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 45.0 ppb (35) N/A 5.0 μg/m3 (5) 3.1 μg/m3 (13) 35.0
 
March 20, 2019, 10 a.m. 0.0 ppb (0) 0.3 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 2.0 μg/m3 (2) 4.6 μg/m3 (19) 33.0
 
March 20, 2019, 9 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 2.0 μg/m3 (2) 5.7 μg/m3 (24) 33.0
 
March 20, 2019, 8 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 45.0 ppb (35) N/A 4.0 μg/m3 (4) 3.5 μg/m3 (15) 35.0
 
March 20, 2019, 7 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 47.0 ppb (36) N/A 8.0 μg/m3 (7) 8.2 μg/m3 (34) 36.0
 
March 20, 2019, 6 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 51.0 ppb (39) N/A 14.0 μg/m3 (13) 13.1 μg/m3 (52) 52.0
 
March 20, 2019, 5 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 54.0 ppb (42) N/A 17.0 μg/m3 (15) 15.7 μg/m3 (58) 58.0
 
March 20, 2019, 4 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 57.0 ppb (44) N/A 18.0 μg/m3 (16) 16.5 μg/m3 (60) 60.0
 
March 20, 2019, 3 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 59.0 ppb (45) N/A 13.0 μg/m3 (12) 9.7 μg/m3 (40) 45.0
 
March 20, 2019, 2 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 60.0 ppb (46) N/A 13.0 μg/m3 (12) 7.3 μg/m3 (30) 46.0
 
March 20, 2019, 1 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 58.0 ppb (45) N/A 12.0 μg/m3 (11) 9.5 μg/m3 (40) 45.0
 
March 20, 2019, midnight 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 56.0 ppb (43) N/A 8.0 μg/m3 (7) 7.9 μg/m3 (33) 43.0
 
March 19, 2019, 11 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 57.0 ppb (44) N/A 14.0 μg/m3 (13) 11.7 μg/m3 (49) 49.0
 
March 19, 2019, 10 p.m. 0.0 ppb (0) 0.2 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 58.0 ppb (45) N/A 5.0 μg/m3 (5) 13.4 μg/m3 (53) 53.0
 
March 19, 2019, 9 p.m. 0.0 ppb (0) 0.4 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 57.0 ppb (44) N/A 4.0 μg/m3 (4) 13.2 μg/m3 (53) 53.0
 
March 19, 2019, 8 p.m. 0.0 ppb (0) 0.6 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 56.0 ppb (43) N/A 3.0 μg/m3 (3) 9.6 μg/m3 (40) 43.0
 
March 19, 2019, 7 p.m. 0.0 ppb (0) 1.0 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 55.0 ppb (42) N/A 7.0 μg/m3 (6) 8.4 μg/m3 (35) 42.0
 
March 19, 2019, 6 p.m. 1.9 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 52.0 ppb (40) N/A 14.0 μg/m3 (13) 9.6 μg/m3 (40) 40.0
 
March 19, 2019, 5 p.m. 0.0 ppb (0) 0.6 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 54.0 ppb (42) N/A 23.0 μg/m3 (21) 8.3 μg/m3 (35) 42.0
 
March 19, 2019, 4 p.m. 0.0 ppb (0) 0.3 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 53.0 ppb (41) N/A 17.0 μg/m3 (15) 7.5 μg/m3 (31) 41.0
 
March 19, 2019, 3 p.m. 0.0 ppb (0) 0.8 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 50.0 ppb (38) N/A 21.0 μg/m3 (19) 5.7 μg/m3 (24) 38.0
 
March 19, 2019, 2 p.m. 1.5 ppb (1) 1.3 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 48.0 ppb (37) N/A 8.0 μg/m3 (7) 5.5 μg/m3 (23) 37.0
 
March 19, 2019, 1 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 44.0 ppb (34) N/A 8.0 μg/m3 (7) 9.1 μg/m3 (38) 38.0
 
March 19, 2019, noon 2.5 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 46.0 ppb (35) N/A 9.0 μg/m3 (8) 13.0 μg/m3 (52) 52.0
 
March 19, 2019, 11 a.m. 0.4 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 49.0 ppb (38) N/A 9.0 μg/m3 (8) 9.2 μg/m3 (38) 38.0
 
March 19, 2019, 10 a.m. 3.5 ppb (3) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 44.0 ppb (34) N/A 8.0 μg/m3 (7) 8.9 μg/m3 (37) 37.0
 
March 19, 2019, 9 a.m. 5.1 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 7.0 μg/m3 (6) 9.5 μg/m3 (40) 40.0
 
March 19, 2019, 8 a.m. 2.9 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 46.0 ppb (35) N/A 10.0 μg/m3 (9) 7.9 μg/m3 (33) 35.0
 
March 19, 2019, 7 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 45.0 ppb (35) N/A 11.0 μg/m3 (10) 6.4 μg/m3 (27) 35.0
 
March 19, 2019, 6 a.m. 3.3 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 48.0 ppb (37) N/A 10.0 μg/m3 (9) 3.8 μg/m3 (16) 37.0
 
March 19, 2019, 5 a.m. 3.4 ppb (3) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 48.0 ppb (37) N/A 9.0 μg/m3 (8) 6.8 μg/m3 (28) 37.0
 
March 19, 2019, 4 a.m. 4.6 ppb (4) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 51.0 ppb (39) N/A 11.0 μg/m3 (10) 11.0 μg/m3 (46) 46.0
 
March 19, 2019, 3 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 56.0 ppb (43) N/A 8.0 μg/m3 (7) 9.1 μg/m3 (38) 43.0
 
March 19, 2019, 2 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 59.0 ppb (45) N/A 10.0 μg/m3 (9) 6.2 μg/m3 (26) 45.0
 
March 19, 2019, 1 a.m. 1.3 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 56.0 ppb (43) N/A 7.0 μg/m3 (6) 8.0 μg/m3 (33) 43.0
 
March 19, 2019, midnight 0.3 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 57.0 ppb (44) N/A 6.0 μg/m3 (5) 6.6 μg/m3 (28) 44.0
 
March 18, 2019, 11 p.m. 0.3 ppb (0) 0.2 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 58.0 ppb (45) N/A 8.0 μg/m3 (7) 6.9 μg/m3 (29) 45.0
 
March 18, 2019, 10 p.m. 0.1 ppb (0) 0.6 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 59.0 ppb (45) N/A 8.0 μg/m3 (7) 8.5 μg/m3 (35) 45.0
 
March 18, 2019, 9 p.m. 0.0 ppb (0) 0.2 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 59.0 ppb (45) N/A 14.0 μg/m3 (13) 10.2 μg/m3 (42) 45.0
 
March 18, 2019, 8 p.m. 0.0 ppb (0) 0.9 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 58.0 ppb (45) N/A 17.0 μg/m3 (15) 11.9 μg/m3 (50) 50.0
 
March 18, 2019, 7 p.m. 2.6 ppb (2) 1.7 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 57.0 ppb (44) N/A 13.0 μg/m3 (12) 9.6 μg/m3 (40) 44.0
 
March 18, 2019, 6 p.m. 1.4 ppb (1) 1.2 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 56.0 ppb (43) N/A 8.0 μg/m3 (7) 9.6 μg/m3 (40) 43.0
 
March 18, 2019, 5 p.m. 1.5 ppb (1) 1.4 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 56.0 ppb (43) N/A 21.0 μg/m3 (19) 11.1 μg/m3 (46) 46.0
 
March 18, 2019, 4 p.m. 2.8 ppb (3) 2.1 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 52.0 ppb (40) N/A 23.0 μg/m3 (21) 10.5 μg/m3 (44) 44.0
 
March 18, 2019, 3 p.m. 7.4 ppb (7) 3.9 ppb (4) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 48.0 ppb (37) N/A 16.0 μg/m3 (15) 15.3 μg/m3 (57) 57.0
 
March 18, 2019, 2 p.m. 12.9 ppb (12) 5.0 ppb (5) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 44.0 ppb (34) N/A 17.0 μg/m3 (15) 15.5 μg/m3 (57) 57.0
 
March 18, 2019, 1 p.m. 31.2 ppb (29) 7.9 ppb (7) N/A 23.0 ppb (21) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 10.0 μg/m3 (9) 9.4 μg/m3 (39) 39.0
 
March 18, 2019, noon 7.3 ppb (7) 0.2 ppb (0) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 41.0 ppb (32) N/A 9.0 μg/m3 (8) 10.7 μg/m3 (45) 45.0
 
March 18, 2019, 11 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 49.0 ppb (38) N/A 7.0 μg/m3 (6) 7.4 μg/m3 (31) 38.0
 
March 18, 2019, 10 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 49.0 ppb (38) N/A 3.0 μg/m3 (3) 10.9 μg/m3 (45) 45.0
 
March 18, 2019, 9 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 51.0 ppb (39) N/A 3.0 μg/m3 (3) 7.7 μg/m3 (32) 39.0
 
March 18, 2019, 8 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 52.0 ppb (40) N/A 3.0 μg/m3 (3) 8.3 μg/m3 (35) 40.0
 
March 18, 2019, 7 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 52.0 ppb (40) N/A 3.0 μg/m3 (3) 5.2 μg/m3 (22) 40.0
 
March 18, 2019, 6 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 53.0 ppb (41) N/A 5.0 μg/m3 (5) 6.0 μg/m3 (25) 41.0
 
March 18, 2019, 5 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 56.0 ppb (43) N/A 5.0 μg/m3 (5) 6.7 μg/m3 (28) 43.0
 
March 18, 2019, 4 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 57.0 ppb (44) N/A 5.0 μg/m3 (5) 7.5 μg/m3 (31) 44.0
 
March 18, 2019, 3 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 58.0 ppb (45) N/A 4.0 μg/m3 (4) 5.5 μg/m3 (23) 45.0
 
March 18, 2019, 2 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 56.0 ppb (43) N/A 5.0 μg/m3 (5) 7.1 μg/m3 (30) 43.0
 
March 18, 2019, 1 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 57.0 ppb (44) N/A 8.0 μg/m3 (7) 9.0 μg/m3 (38) 44.0
 
March 18, 2019, midnight 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 57.0 ppb (44) N/A 10.0 μg/m3 (9) 8.2 μg/m3 (34) 44.0
 
March 17, 2019, 11 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 56.0 ppb (43) N/A 11.0 μg/m3 (10) 4.6 μg/m3 (19) 43.0
 
March 17, 2019, 10 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 56.0 ppb (43) N/A 4.0 μg/m3 (4) 5.6 μg/m3 (23) 43.0
 
March 17, 2019, 9 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 56.0 ppb (43) N/A 8.0 μg/m3 (7) 5.2 μg/m3 (22) 43.0
 
March 17, 2019, 8 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 56.0 ppb (43) N/A 14.0 μg/m3 (13) 7.4 μg/m3 (31) 43.0
 
March 17, 2019, 7 p.m. 0.0 ppb (0) 0.3 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 58.0 ppb (45) N/A 10.0 μg/m3 (9) 6.6 μg/m3 (28) 45.0
 
March 17, 2019, 6 p.m. 0.0 ppb (0) 0.6 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 57.0 ppb (44) N/A 9.0 μg/m3 (8) 6.2 μg/m3 (26) 44.0
 
March 17, 2019, 5 p.m. 0.0 ppb (0) 0.1 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 56.0 ppb (43) N/A 17.0 μg/m3 (15) 6.7 μg/m3 (28) 43.0
 
March 17, 2019, 4 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 55.0 ppb (42) N/A 22.0 μg/m3 (20) 9.0 μg/m3 (38) 42.0
 
March 17, 2019, 3 p.m. 0.0 ppb (0) 0.3 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 54.0 ppb (42) N/A 16.0 μg/m3 (15) 9.6 μg/m3 (40) 42.0
 
March 17, 2019, 2 p.m. 0.0 ppb (0) 0.6 ppb (1) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 51.0 ppb (39) N/A 11.0 μg/m3 (10) 14.1 μg/m3 (54) 54.0
 
March 17, 2019, 1 p.m. 1.4 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 49.0 ppb (38) N/A 11.0 μg/m3 (10) 11.1 μg/m3 (46) 46.0
 
March 17, 2019, noon 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 50.0 ppb (38) N/A 11.0 μg/m3 (10) 11.2 μg/m3 (47) 47.0
 
March 17, 2019, 11 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 48.0 ppb (37) N/A 14.0 μg/m3 (13) 12.5 μg/m3 (51) 51.0
 
March 17, 2019, 10 a.m. 0.4 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 48.0 ppb (37) N/A 10.0 μg/m3 (9) 13.2 μg/m3 (53) 53.0
 
March 17, 2019, 9 a.m. 0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 48.0 ppb (37) N/A 12.0 μg/m3 (11) 18.4 μg/m3 (64) 64.0
 
March 17, 2019, 8 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 51.0 ppb (39) N/A 13.0 μg/m3 (12) 14.8 μg/m3 (56) 56.0
 
March 17, 2019, 7 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 49.0 ppb (38) N/A 16.0 μg/m3 (15) 17.7 μg/m3 (62) 62.0
 
March 17, 2019, 6 a.m. 0.3 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 48.0 ppb (37) N/A 17.0 μg/m3 (15) 16.3 μg/m3 (59) 59.0
 
March 17, 2019, 5 a.m. 7.1 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 47.0 ppb (36) N/A 16.0 μg/m3 (15) 15.3 μg/m3 (57) 57.0
 
March 17, 2019, 4 a.m. 8.1 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 46.0 ppb (35) N/A 17.0 μg/m3 (15) 14.3 μg/m3 (55) 55.0
 
March 17, 2019, 3 a.m. 1.1 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 54.0 ppb (42) N/A 10.0 μg/m3 (9) 10.3 μg/m3 (43) 43.0
 
March 17, 2019, 2 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 56.0 ppb (43) N/A 6.0 μg/m3 (5) 9.0 μg/m3 (38) 43.0
 
March 17, 2019, 1 a.m. 1.2 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 52.0 ppb (40) N/A 4.0 μg/m3 (4) 8.5 μg/m3 (35) 40.0
 
March 17, 2019, midnight 0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 54.0 ppb (42) N/A 6.0 μg/m3 (5) 7.0 μg/m3 (29) 42.0
 
March 16, 2019, 11 p.m. 0.0 ppb (0) 0.2 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 53.0 ppb (41) N/A 7.0 μg/m3 (6) 7.5 μg/m3 (31) 41.0
 
March 16, 2019, 10 p.m. 0.0 ppb (0) 0.4 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 55.0 ppb (42) N/A 8.0 μg/m3 (7) 3.7 μg/m3 (15) 42.0
 
March 16, 2019, 9 p.m. 0.0 ppb (0) 0.4 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (1) 54.0 ppb (42) N/A 11.0 μg/m3 (10) 5.3 μg/m3 (22) 42.0