AQSQID: 020900034

Site Name: Ncore

Location: Fort Wainright (River St), AK

Reporting: True, Located: True

Current AQI: 24.0

Fort Wainright (River St) AK, US: 64.8458, -147.72727

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 23, 2019, 10 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 31.0 ppb (24) 0.2 ppb (2) N/A 2.0 μg/m3 (8) 24.0
 
March 23, 2019, 9 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 30.0 ppb (23) 0.2 ppb (2) N/A 5.0 μg/m3 (21) 23.0
 
March 23, 2019, 8 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 27.0 ppb (21) 0.2 ppb (2) N/A 2.0 μg/m3 (8) 21.0
 
March 23, 2019, 7 p.m. N/A N/A N/A N/A N/A 8.0 ppb (11) 26.0 ppb (20) 0.2 ppb (2) N/A 4.0 μg/m3 (17) 20.0
 
March 23, 2019, 6 p.m. N/A N/A N/A N/A N/A 9.0 ppb (13) 20.0 ppb (15) 0.3 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
March 23, 2019, 5 p.m. N/A N/A N/A N/A N/A 11.0 ppb (16) 13.0 ppb (10) 0.3 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
March 23, 2019, 4 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 4.0 ppb (3) 0.5 ppb (6) N/A 7.0 μg/m3 (29) 29.0
 
March 23, 2019, 3 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 2.0 ppb (2) 0.4 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
March 23, 2019, 2 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 2.0 ppb (2) 0.3 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
March 23, 2019, 1 p.m. N/A N/A N/A N/A N/A 12.0 ppb (17) 2.0 ppb (2) 0.3 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
March 23, 2019, noon N/A N/A N/A N/A N/A 13.0 ppb (19) 6.0 ppb (5) 0.2 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
March 23, 2019, 11 a.m. N/A N/A N/A N/A N/A 15.0 ppb (21) 7.0 ppb (5) 0.2 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
March 23, 2019, 10 a.m. N/A N/A N/A N/A N/A 15.0 ppb (21) 7.0 ppb (5) 0.3 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
March 23, 2019, 9 a.m. N/A N/A N/A N/A N/A 11.0 ppb (16) 9.0 ppb (7) 0.3 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
March 23, 2019, 8 a.m. N/A N/A N/A N/A N/A 9.0 ppb (13) 13.0 ppb (10) 0.3 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
March 23, 2019, 7 a.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 16.0 ppb (12) 0.3 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
March 23, 2019, 6 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 22.0 ppb (17) 0.3 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
March 23, 2019, 5 a.m. N/A N/A N/A N/A N/A 8.0 ppb (11) 14.0 ppb (11) 0.4 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
March 23, 2019, 4 a.m. N/A N/A N/A N/A N/A 10.0 ppb (14) 12.0 ppb (9) 0.4 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
March 23, 2019, 3 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 21.0 ppb (16) 0.3 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
March 23, 2019, 2 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 35.0 ppb (27) 0.2 ppb (2) N/A 4.0 μg/m3 (17) 27.0
 
March 23, 2019, 1 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 35.0 ppb (27) 0.2 ppb (2) N/A 4.0 μg/m3 (17) 27.0
 
March 23, 2019, midnight N/A N/A N/A N/A N/A 5.0 ppb (7) 20.0 ppb (15) 0.4 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
March 22, 2019, 11 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 23.0 ppb (18) 0.4 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
March 22, 2019, 10 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 29.0 ppb (22) 0.3 ppb (3) N/A 5.0 μg/m3 (21) 22.0
 
March 22, 2019, 9 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 38.0 ppb (29) 0.2 ppb (2) N/A 4.0 μg/m3 (17) 29.0
 
March 22, 2019, 8 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 43.0 ppb (33) 0.2 ppb (2) N/A 3.0 μg/m3 (12) 33.0
 
March 22, 2019, 7 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 44.0 ppb (34) 0.1 ppb (1) N/A 3.0 μg/m3 (12) 34.0
 
March 22, 2019, 6 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 36.0 ppb (28) 0.2 ppb (2) N/A 5.0 μg/m3 (21) 28.0
 
March 22, 2019, 5 p.m. N/A N/A N/A N/A N/A 8.0 ppb (11) 7.0 ppb (5) 0.6 ppb (7) N/A 8.0 μg/m3 (33) 33.0
 
March 22, 2019, 4 p.m. N/A N/A N/A N/A N/A 11.0 ppb (16) 8.0 ppb (6) 0.8 ppb (9) N/A 5.0 μg/m3 (21) 21.0
 
March 22, 2019, 3 p.m. N/A N/A N/A N/A N/A 12.0 ppb (17) 2.0 ppb (2) 0.5 ppb (6) N/A 5.0 μg/m3 (21) 21.0
 
March 22, 2019, 2 p.m. N/A N/A N/A N/A N/A 11.0 ppb (16) 3.0 ppb (2) 0.2 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
March 22, 2019, 1 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 11.0 ppb (8) N/A N/A 3.0 μg/m3 (12) 12.0
 
March 22, 2019, noon N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 0.1 ppb (1) N/A 0.0 μg/m3 (0) 7.0
 
March 22, 2019, 11 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 46.0 ppb (35) 0.1 ppb (1) N/A 4.0 μg/m3 (17) 35.0
 
March 22, 2019, 10 a.m. N/A N/A N/A N/A N/A 11.0 ppb (16) 9.0 ppb (7) 0.3 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
March 22, 2019, 9 a.m. N/A N/A N/A N/A N/A 15.0 ppb (21) 6.0 ppb (5) 0.3 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
March 22, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) 0.3 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
March 22, 2019, 7 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 46.0 ppb (35) 0.1 ppb (1) N/A 1.0 μg/m3 (4) 35.0
 
March 22, 2019, 6 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 29.0 ppb (22) 0.2 ppb (2) N/A 3.0 μg/m3 (12) 22.0
 
March 22, 2019, 5 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 33.0 ppb (25) 0.2 ppb (2) N/A 3.0 μg/m3 (12) 25.0
 
March 22, 2019, 4 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 40.0 ppb (31) 0.2 ppb (2) N/A 3.0 μg/m3 (12) 31.0
 
March 22, 2019, 3 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 41.0 ppb (32) 0.2 ppb (2) N/A 1.0 μg/m3 (4) 32.0
 
March 22, 2019, 2 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 40.0 ppb (31) 0.2 ppb (2) N/A 1.0 μg/m3 (4) 31.0
 
March 22, 2019, 1 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 44.0 ppb (34) 0.3 ppb (3) N/A 1.0 μg/m3 (4) 34.0
 
March 22, 2019, midnight N/A N/A N/A N/A N/A 4.0 ppb (6) 41.0 ppb (32) 0.2 ppb (2) N/A 2.0 μg/m3 (8) 32.0
 
March 21, 2019, 11 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 44.0 ppb (34) 0.2 ppb (2) N/A 5.0 μg/m3 (21) 34.0
 
March 21, 2019, 10 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 29.0 ppb (22) 0.3 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
March 21, 2019, 9 p.m. N/A N/A N/A N/A N/A 9.0 ppb (13) 11.0 ppb (8) N/A N/A 21.0 μg/m3 (69) 69.0
 
March 21, 2019, 8 p.m. N/A N/A N/A N/A N/A 12.0 ppb (17) 9.0 ppb (7) 0.5 ppb (6) N/A 14.0 μg/m3 (54) 54.0
 
March 21, 2019, 7 p.m. N/A N/A N/A N/A N/A 10.0 ppb (14) 10.0 ppb (8) 0.5 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
March 21, 2019, 6 p.m. N/A N/A N/A N/A N/A 10.0 ppb (14) 9.0 ppb (7) 0.5 ppb (6) N/A 16.0 μg/m3 (59) 59.0
 
March 21, 2019, 5 p.m. N/A N/A N/A N/A N/A 11.0 ppb (16) 7.0 ppb (5) 0.6 ppb (7) N/A 15.0 μg/m3 (56) 56.0
 
March 21, 2019, 4 p.m. N/A N/A N/A N/A N/A 11.0 ppb (16) 5.0 ppb (4) 0.5 ppb (6) N/A 8.0 μg/m3 (33) 33.0
 
March 21, 2019, 3 p.m. N/A N/A N/A N/A N/A 8.0 ppb (11) 15.0 ppb (12) 0.3 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
March 21, 2019, 2 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 25.0 ppb (19) 0.2 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
March 21, 2019, 1 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 27.0 ppb (21) 0.2 ppb (2) N/A 4.0 μg/m3 (17) 21.0
 
March 21, 2019, noon N/A N/A N/A N/A N/A 5.0 ppb (7) 30.0 ppb (23) 0.1 ppb (1) N/A 4.0 μg/m3 (17) 23.0
 
March 21, 2019, 11 a.m. N/A N/A N/A N/A N/A 9.0 ppb (13) 14.0 ppb (11) 0.2 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
March 21, 2019, 10 a.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 17.0 ppb (13) 0.3 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
March 21, 2019, 9 a.m. N/A N/A N/A N/A N/A 9.0 ppb (13) 12.0 ppb (9) 0.3 ppb (3) N/A 3.0 μg/m3 (12) 13.0
 
March 21, 2019, 8 a.m. N/A N/A N/A N/A N/A 8.0 ppb (11) 12.0 ppb (9) 0.2 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
March 21, 2019, 7 a.m. N/A N/A N/A N/A N/A 8.0 ppb (11) 14.0 ppb (11) 0.3 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
March 21, 2019, 6 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 11.0 ppb (8) 0.3 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
March 21, 2019, 5 a.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 6.0 ppb (5) 0.5 ppb (6) N/A 7.0 μg/m3 (29) 29.0
 
March 21, 2019, 4 a.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 12.0 ppb (9) 0.5 ppb (6) N/A 3.0 μg/m3 (12) 12.0
 
March 21, 2019, 3 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 14.0 ppb (11) 0.5 ppb (6) N/A 6.0 μg/m3 (25) 25.0
 
March 21, 2019, 2 a.m. N/A N/A N/A N/A N/A 8.0 ppb (11) 3.0 ppb (2) 1.1 ppb (12) N/A 16.0 μg/m3 (59) 59.0
 
March 21, 2019, 1 a.m. N/A N/A N/A N/A N/A 10.0 ppb (14) 4.0 ppb (3) 1.0 ppb (11) N/A 20.0 μg/m3 (67) 67.0
 
March 21, 2019, midnight N/A N/A N/A N/A N/A 9.0 ppb (13) 9.0 ppb (7) 0.7 ppb (8) N/A 19.0 μg/m3 (65) 65.0
 
March 20, 2019, 11 p.m. N/A N/A N/A N/A N/A 11.0 ppb (16) 7.0 ppb (5) 0.8 ppb (9) N/A 19.0 μg/m3 (65) 65.0
 
March 20, 2019, 10 p.m. N/A N/A N/A N/A N/A 8.0 ppb (11) 7.0 ppb (5) 0.6 ppb (7) N/A 17.0 μg/m3 (61) 61.0
 
March 20, 2019, 9 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 19.0 ppb (15) 0.3 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
March 20, 2019, 8 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 27.0 ppb (21) 0.2 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
March 20, 2019, 7 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 21.0 ppb (16) 0.3 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
March 20, 2019, 6 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 12.0 ppb (9) 0.3 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
March 20, 2019, 5 p.m. N/A N/A N/A N/A N/A 8.0 ppb (11) 12.0 ppb (9) 0.4 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
March 20, 2019, 4 p.m. N/A N/A N/A N/A N/A 8.0 ppb (11) 8.0 ppb (6) 0.4 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
March 20, 2019, 3 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 13.0 ppb (10) 0.2 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
March 20, 2019, 2 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 29.0 ppb (22) 0.1 ppb (1) N/A 1.0 μg/m3 (4) 22.0
 
March 20, 2019, 1 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 25.0 ppb (19) 0.1 ppb (1) N/A 0.0 μg/m3 (0) 19.0
 
March 20, 2019, noon N/A N/A N/A N/A N/A 6.0 ppb (9) 15.0 ppb (12) 0.1 ppb (1) N/A 2.0 μg/m3 (8) 12.0
 
March 20, 2019, 11 a.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 14.0 ppb (11) 0.2 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
March 20, 2019, 10 a.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 19.0 ppb (15) 0.1 ppb (1) N/A 3.0 μg/m3 (12) 15.0
 
March 20, 2019, 9 a.m. N/A N/A N/A N/A N/A 10.0 ppb (14) 12.0 ppb (9) 0.2 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
March 20, 2019, 8 a.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 21.0 ppb (16) 0.2 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
March 20, 2019, 7 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 28.0 ppb (22) 0.2 ppb (2) N/A 3.0 μg/m3 (12) 22.0
 
March 20, 2019, 6 a.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 25.0 ppb (19) 0.2 ppb (2) N/A 2.0 μg/m3 (8) 19.0
 
March 20, 2019, 5 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 26.0 ppb (20) 0.3 ppb (3) N/A 4.0 μg/m3 (17) 20.0
 
March 20, 2019, 4 a.m. N/A N/A N/A N/A N/A 8.0 ppb (11) 25.0 ppb (19) 0.2 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
March 20, 2019, 3 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 34.0 ppb (26) 0.1 ppb (1) N/A 2.0 μg/m3 (8) 26.0
 
March 20, 2019, 2 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 36.0 ppb (28) 0.1 ppb (1) N/A 2.0 μg/m3 (8) 28.0
 
March 20, 2019, 1 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 35.0 ppb (27) 0.1 ppb (1) N/A 1.0 μg/m3 (4) 27.0
 
March 20, 2019, midnight N/A N/A N/A N/A N/A 4.0 ppb (6) 34.0 ppb (26) 0.1 ppb (1) N/A 0.0 μg/m3 (0) 26.0
 
March 19, 2019, 11 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 34.0 ppb (26) N/A N/A 0.0 μg/m3 (0) 26.0
 
March 19, 2019, 10 p.m. N/A N/A N/A N/A N/A 3.0 ppb (4) 33.0 ppb (25) 0.1 ppb (1) N/A N/A 25.0
 
March 19, 2019, 9 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 33.0 ppb (25) 0.1 ppb (1) N/A 1.0 μg/m3 (4) 25.0
 
March 19, 2019, 8 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 33.0 ppb (25) 0.1 ppb (1) N/A 2.0 μg/m3 (8) 25.0
 
March 19, 2019, 7 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 34.0 ppb (26) N/A N/A 2.0 μg/m3 (8) 26.0
 
March 19, 2019, 6 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 32.0 ppb (25) N/A N/A 2.0 μg/m3 (8) 25.0
 
March 19, 2019, 5 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 33.0 ppb (25) N/A N/A 2.0 μg/m3 (8) 25.0
 
March 19, 2019, 4 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 34.0 ppb (26) 0.1 ppb (1) N/A 1.0 μg/m3 (4) 26.0
 
March 19, 2019, 3 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 35.0 ppb (27) 0.2 ppb (2) N/A 2.0 μg/m3 (8) 27.0
 
March 19, 2019, 2 p.m. N/A N/A N/A N/A N/A 8.0 ppb (11) 18.0 ppb (14) 0.3 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
March 19, 2019, 1 p.m. N/A N/A N/A N/A N/A 11.0 ppb (16) 3.0 ppb (2) N/A N/A 8.0 μg/m3 (33) 33.0
 
March 19, 2019, noon N/A N/A N/A N/A N/A 9.0 ppb (13) N/A 0.3 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
March 19, 2019, 11 a.m. N/A N/A N/A N/A N/A 10.0 ppb (14) 6.0 ppb (5) 0.3 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
March 19, 2019, 10 a.m. N/A N/A N/A N/A N/A 9.0 ppb (13) 7.0 ppb (5) 0.3 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
March 19, 2019, 9 a.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 14.0 ppb (11) 0.3 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
March 19, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) 0.2 ppb (2) N/A 4.0 μg/m3 (17) 21.0
 
March 19, 2019, 7 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 36.0 ppb (28) 0.2 ppb (2) N/A 2.0 μg/m3 (8) 28.0
 
March 19, 2019, 6 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 40.0 ppb (31) 0.2 ppb (2) N/A 2.0 μg/m3 (8) 31.0
 
March 19, 2019, 5 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 43.0 ppb (33) 0.2 ppb (2) N/A 3.0 μg/m3 (12) 33.0
 
March 19, 2019, 4 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 43.0 ppb (33) 0.2 ppb (2) N/A 2.0 μg/m3 (8) 33.0
 
March 19, 2019, 3 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 41.0 ppb (32) 0.2 ppb (2) N/A 4.0 μg/m3 (17) 32.0
 
March 19, 2019, 2 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 42.0 ppb (32) 0.2 ppb (2) N/A 0.0 μg/m3 (0) 32.0
 
March 19, 2019, 1 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 39.0 ppb (30) 0.4 ppb (4) N/A -1.0 μg/m3 (0) 30.0
 
March 19, 2019, midnight N/A N/A N/A N/A N/A 4.0 ppb (6) 38.0 ppb (29) 0.4 ppb (4) N/A 2.0 μg/m3 (8) 29.0
 
March 18, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) 0.2 ppb (2) N/A N/A 25.0
 
March 18, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 0.0 μg/m3 (0) 21.0
 
March 18, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 5.0 μg/m3 (21) 21.0
 
March 18, 2019, 8 p.m. N/A N/A N/A N/A N/A 10.0 ppb (14) 20.0 ppb (15) 0.4 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
March 18, 2019, 7 p.m. N/A N/A N/A N/A N/A 9.0 ppb (13) 14.0 ppb (11) 0.5 ppb (6) N/A 7.0 μg/m3 (29) 29.0
 
March 18, 2019, 6 p.m. N/A N/A N/A N/A N/A 10.0 ppb (14) 5.0 ppb (4) 0.5 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
March 18, 2019, 5 p.m. N/A N/A N/A N/A N/A 9.0 ppb (13) 3.0 ppb (2) 0.7 ppb (8) N/A 16.0 μg/m3 (59) 59.0
 
March 18, 2019, 4 p.m. N/A N/A N/A N/A N/A 9.0 ppb (13) 2.0 ppb (2) 0.6 ppb (7) N/A 7.0 μg/m3 (29) 29.0
 
March 18, 2019, 3 p.m. N/A N/A N/A N/A N/A 9.0 ppb (13) 7.0 ppb (5) 0.4 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
March 18, 2019, 2 p.m. N/A N/A N/A N/A N/A 9.0 ppb (13) 15.0 ppb (12) 0.3 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
March 18, 2019, 1 p.m. N/A N/A N/A N/A N/A 8.0 ppb (11) 12.0 ppb (9) 0.3 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
March 18, 2019, noon N/A N/A N/A N/A N/A 8.0 ppb (11) 18.0 ppb (14) 0.2 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
March 18, 2019, 11 a.m. N/A N/A N/A N/A N/A 9.0 ppb (13) 12.0 ppb (9) 0.3 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
March 18, 2019, 10 a.m. N/A N/A N/A N/A N/A 9.0 ppb (13) 10.0 ppb (8) 0.3 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
March 18, 2019, 9 a.m. N/A N/A N/A N/A N/A 8.0 ppb (11) 13.0 ppb (10) 0.3 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
March 18, 2019, 8 a.m. N/A N/A N/A N/A N/A 8.0 ppb (11) 7.0 ppb (5) 0.4 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
March 18, 2019, 7 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 31.0 ppb (24) 0.2 ppb (2) N/A 0.0 μg/m3 (0) 24.0
 
March 18, 2019, 6 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 43.0 ppb (33) 0.2 ppb (2) N/A -1.0 μg/m3 (0) 33.0
 
March 18, 2019, 5 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 42.0 ppb (32) 0.2 ppb (2) N/A 0.0 μg/m3 (0) 32.0
 
March 18, 2019, 4 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 44.0 ppb (34) 0.2 ppb (2) N/A 0.0 μg/m3 (0) 34.0
 
March 18, 2019, 3 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 44.0 ppb (34) 0.2 ppb (2) N/A 0.0 μg/m3 (0) 34.0
 
March 18, 2019, 2 a.m. N/A N/A N/A N/A N/A 8.0 ppb (11) 38.0 ppb (29) 0.2 ppb (2) N/A 2.0 μg/m3 (8) 29.0
 
March 18, 2019, 1 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 45.0 ppb (35) 0.2 ppb (2) N/A 1.0 μg/m3 (4) 35.0
 
March 18, 2019, midnight N/A N/A N/A N/A N/A 4.0 ppb (6) 46.0 ppb (35) 0.2 ppb (2) N/A -1.0 μg/m3 (0) 35.0
 
March 17, 2019, 11 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 45.0 ppb (35) 0.2 ppb (2) N/A 1.0 μg/m3 (4) 35.0
 
March 17, 2019, 10 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 44.0 ppb (34) 0.2 ppb (2) N/A 1.0 μg/m3 (4) 34.0
 
March 17, 2019, 9 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 44.0 ppb (34) 0.2 ppb (2) N/A 0.0 μg/m3 (0) 34.0
 
March 17, 2019, 8 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 46.0 ppb (35) 0.2 ppb (2) N/A 1.0 μg/m3 (4) 35.0
 
March 17, 2019, 7 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 46.0 ppb (35) 0.2 ppb (2) N/A 2.0 μg/m3 (8) 35.0
 
March 17, 2019, 6 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 46.0 ppb (35) 0.2 ppb (2) N/A 3.0 μg/m3 (12) 35.0
 
March 17, 2019, 5 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 46.0 ppb (35) 0.2 ppb (2) N/A 5.0 μg/m3 (21) 35.0
 
March 17, 2019, 4 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 25.0 ppb (19) 0.2 ppb (2) N/A 2.0 μg/m3 (8) 19.0
 
March 17, 2019, 3 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 46.0 ppb (35) 0.2 ppb (2) N/A 2.0 μg/m3 (8) 35.0
 
March 17, 2019, 2 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 18.0 ppb (14) 0.2 ppb (2) N/A 2.0 μg/m3 (8) 14.0
 
March 17, 2019, 1 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 44.0 ppb (34) 0.2 ppb (2) N/A 1.0 μg/m3 (4) 34.0
 
March 17, 2019, noon N/A N/A N/A N/A N/A 4.0 ppb (6) 42.0 ppb (32) 0.2 ppb (2) N/A 1.0 μg/m3 (4) 32.0
 
March 17, 2019, 11 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 40.0 ppb (31) 0.2 ppb (2) N/A 2.0 μg/m3 (8) 31.0
 
March 17, 2019, 10 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 38.0 ppb (29) 0.2 ppb (2) N/A 3.0 μg/m3 (12) 29.0
 
March 17, 2019, 9 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 37.0 ppb (28) 0.2 ppb (2) N/A 2.0 μg/m3 (8) 28.0
 
March 17, 2019, 8 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 37.0 ppb (28) 0.2 ppb (2) N/A 4.0 μg/m3 (17) 28.0
 
March 17, 2019, 7 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 20.0 ppb (15) 0.4 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
March 17, 2019, 6 a.m. N/A N/A N/A N/A N/A 9.0 ppb (13) 7.0 ppb (5) 0.6 ppb (7) N/A 8.0 μg/m3 (33) 33.0
 
March 17, 2019, 5 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 22.0 ppb (17) 0.4 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
March 17, 2019, 4 a.m. N/A N/A N/A N/A N/A 8.0 ppb (11) 8.0 ppb (6) 0.7 ppb (8) N/A 15.0 μg/m3 (56) 56.0
 
March 17, 2019, 3 a.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 5.0 ppb (4) 0.7 ppb (8) N/A 5.0 μg/m3 (21) 21.0
 
March 17, 2019, 2 a.m. N/A N/A N/A N/A N/A 9.0 ppb (13) 15.0 ppb (12) 0.6 ppb (7) N/A 2.0 μg/m3 (8) 13.0
 
March 17, 2019, 1 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 34.0 ppb (26) 0.3 ppb (3) N/A 0.0 μg/m3 (0) 26.0
 
March 17, 2019, midnight N/A N/A N/A N/A N/A 5.0 ppb (7) 39.0 ppb (30) 0.2 ppb (2) N/A -2.0 μg/m3 (0) 30.0
 
March 16, 2019, 11 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 41.0 ppb (32) 0.2 ppb (2) N/A -2.0 μg/m3 (0) 32.0