ID: 539

AQSQID: 310550019

Site Name: Ncore

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

Updated: Jan. 16, 2021, 2:31 a.m.

Location: Omaha (Field Club), NE

Reporting: True, Located: True

Current AQI: 17.0

Omaha (Field Club) NE, US: 41.2474, -95.9731

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 16, 2021, 1 a.m. N/A 1.1 ppb (2) 3.4 ppb (4) N/A N/A 0.0 ppb (0) 17.0 ppb (16) 0.17 ppb (3) -1.0 μg/m3 (0) 4.0 μg/m3 (17) 17.0
 
Jan. 16, 2021, midnight N/A 0.7 ppb (1) 3.3 ppb (4) N/A N/A 0.0 ppb (0) 17.0 ppb (16) 0.17 ppb (3) 2.0 μg/m3 (2) 3.0 μg/m3 (13) 16.0
 
Jan. 15, 2021, 11 p.m. N/A 1.0 ppb (1) 4.0 ppb (4) N/A N/A 0.0 ppb (0) 16.0 ppb (15) 0.17 ppb (3) 3.0 μg/m3 (3) 2.0 μg/m3 (9) 15.0
 
Jan. 15, 2021, 10 p.m. N/A 1.1 ppb (2) 3.9 ppb (4) N/A N/A 0.0 ppb (0) 17.0 ppb (16) 0.17 ppb (3) 4.0 μg/m3 (4) 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2021, 9 p.m. N/A 1.2 ppb (2) 3.6 ppb (4) N/A N/A 0.0 ppb (0) 17.0 ppb (16) 0.16 ppb (3) 4.0 μg/m3 (4) 9.0 μg/m3 (38) 38.0
 
Jan. 15, 2021, 8 p.m. N/A 1.0 ppb (1) 3.4 ppb (4) N/A N/A 0.0 ppb (0) 17.0 ppb (16) 0.16 ppb (3) 1.0 μg/m3 (1) 9.0 μg/m3 (38) 38.0
 
Jan. 15, 2021, 7 p.m. N/A 0.9 ppb (1) 3.5 ppb (4) N/A N/A 0.0 ppb (0) 18.0 ppb (17) 0.16 ppb (3) 3.0 μg/m3 (3) 3.0 μg/m3 (13) 17.0
 
Jan. 15, 2021, 6 p.m. N/A 0.9 ppb (1) 3.2 ppb (4) N/A N/A 0.0 ppb (0) 18.0 ppb (17) 0.17 ppb (3) 2.0 μg/m3 (2) 8.0 μg/m3 (34) 34.0
 
Jan. 15, 2021, 5 p.m. N/A 1.0 ppb (1) 5.1 ppb (5) N/A N/A 0.0 ppb (0) 19.0 ppb (18) 0.17 ppb (3) 0.0 μg/m3 (0) 14.0 μg/m3 (55) 55.0
 
Jan. 15, 2021, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 19.0 ppb (18) 0.16 ppb (3) 0.0 μg/m3 (0) 23.0 μg/m3 (74) 74.0
 
Jan. 15, 2021, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 19.0 ppb (18) 0.15 ppb (2) 1.0 μg/m3 (1) 16.0 μg/m3 (60) 60.0
 
Jan. 15, 2021, 2 p.m. N/A 1.2 ppb (2) 3.6 ppb (4) N/A N/A 0.0 ppb (0) 19.0 ppb (18) 0.16 ppb (3) 5.0 μg/m3 (5) 8.0 μg/m3 (34) 34.0
 
Jan. 15, 2021, 1 p.m. N/A 1.3 ppb (2) 4.2 ppb (4) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.16 ppb (3) 7.0 μg/m3 (7) 11.0 μg/m3 (46) 46.0
 
Jan. 15, 2021, noon N/A 0.9 ppb (1) 4.6 ppb (5) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.15 ppb (2) 4.0 μg/m3 (4) 11.0 μg/m3 (46) 46.0
 
Jan. 15, 2021, 11 a.m. N/A 0.7 ppb (1) 4.9 ppb (5) N/A N/A 0.0 ppb (0) 21.0 ppb (20) 0.15 ppb (2) 5.0 μg/m3 (5) 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2021, 10 a.m. N/A 0.2 ppb (1) 3.7 ppb (4) N/A N/A 0.0 ppb (0) 21.0 ppb (20) 0.15 ppb (2) 5.0 μg/m3 (5) 4.0 μg/m3 (17) 20.0
 
Jan. 15, 2021, 9 a.m. N/A 0.2 ppb (1) 2.7 ppb (3) N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.15 ppb (2) 7.0 μg/m3 (7) 2.0 μg/m3 (9) 22.0
 
Jan. 15, 2021, 8 a.m. N/A 0.2 ppb (1) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.15 ppb (2) 9.0 μg/m3 (9) 2.0 μg/m3 (9) 23.0
 
Jan. 15, 2021, 7 a.m. N/A 0.2 ppb (1) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.15 ppb (2) 13.0 μg/m3 (13) 4.0 μg/m3 (17) 25.0
 
Jan. 15, 2021, 6 a.m. N/A 0.2 ppb (1) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.15 ppb (2) 7.0 μg/m3 (7) 18.0 μg/m3 (64) 64.0
 
Jan. 15, 2021, 5 a.m. N/A 0.2 ppb (1) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.16 ppb (3) 10.0 μg/m3 (10) 9.0 μg/m3 (38) 38.0
 
Jan. 15, 2021, 4 a.m. N/A 0.2 ppb (1) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.16 ppb (3) 16.0 μg/m3 (15) 14.0 μg/m3 (55) 55.0
 
Jan. 15, 2021, 3 a.m. N/A 0.2 ppb (1) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.16 ppb (3) 17.0 μg/m3 (16) 9.0 μg/m3 (38) 38.0
 
Jan. 15, 2021, 2 a.m. N/A 0.2 ppb (1) 1.8 ppb (2) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.16 ppb (3) 34.0 μg/m3 (32) 9.0 μg/m3 (38) 38.0
 
Jan. 15, 2021, 1 a.m. N/A 0.3 ppb (1) 2.0 ppb (2) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.16 ppb (3) 106.0 μg/m3 (77) 26.0 μg/m3 (81) 81.0
 
Jan. 15, 2021, midnight N/A 0.3 ppb (1) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.17 ppb (3) 70.0 μg/m3 (59) 6.0 μg/m3 (25) 59.0
 
Jan. 14, 2021, 11 p.m. N/A 0.4 ppb (1) 2.5 ppb (3) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.18 ppb (3) 25.0 μg/m3 (24) 4.0 μg/m3 (17) 25.0
 
Jan. 14, 2021, 10 p.m. N/A 0.4 ppb (1) 2.2 ppb (3) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.19 ppb (3) 30.0 μg/m3 (28) 4.0 μg/m3 (17) 28.0
 
Jan. 14, 2021, 9 p.m. N/A 0.5 ppb (1) 3.2 ppb (4) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.2 ppb (3) 24.0 μg/m3 (23) 5.0 μg/m3 (21) 25.0
 
Jan. 14, 2021, 8 p.m. N/A 0.4 ppb (1) 2.4 ppb (3) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.2 ppb (3) 27.0 μg/m3 (25) 8.0 μg/m3 (34) 34.0
 
Jan. 14, 2021, 7 p.m. N/A 0.6 ppb (1) 2.1 ppb (2) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.2 ppb (3) 27.0 μg/m3 (25) 9.0 μg/m3 (38) 38.0
 
Jan. 14, 2021, 6 p.m. N/A 0.5 ppb (1) 1.9 ppb (2) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.19 ppb (3) 23.0 μg/m3 (22) 6.0 μg/m3 (25) 25.0
 
Jan. 14, 2021, 5 p.m. N/A 0.4 ppb (1) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.17 ppb (3) 26.0 μg/m3 (25) 3.0 μg/m3 (13) 25.0
 
Jan. 14, 2021, 4 p.m. N/A 0.9 ppb (1) 3.0 ppb (3) N/A N/A 0.0 ppb (0) N/A 0.15 ppb (2) 20.0 μg/m3 (19) 3.0 μg/m3 (13) 19.0
 
Jan. 14, 2021, 3 p.m. N/A 0.4 ppb (1) 2.7 ppb (3) N/A N/A 0.0 ppb (0) 19.0 ppb (18) 0.18 ppb (3) 9.0 μg/m3 (9) 4.0 μg/m3 (17) 18.0
 
Jan. 14, 2021, 2 p.m. N/A 0.3 ppb (1) 2.3 ppb (3) N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.18 ppb (3) 6.0 μg/m3 (6) 7.0 μg/m3 (30) 30.0
 
Jan. 14, 2021, 1 p.m. N/A 0.3 ppb (1) 2.2 ppb (3) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.19 ppb (3) 37.0 μg/m3 (35) 8.0 μg/m3 (34) 35.0
 
Jan. 14, 2021, noon N/A 0.3 ppb (1) 1.9 ppb (2) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.19 ppb (3) 57.0 μg/m3 (52) 14.0 μg/m3 (55) 55.0
 
Jan. 14, 2021, 11 a.m. N/A 0.2 ppb (1) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.21 ppb (3) 13.0 μg/m3 (13) 5.0 μg/m3 (21) 26.0
 
Jan. 14, 2021, 10 a.m. N/A 0.2 ppb (1) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.24 ppb (3) 6.0 μg/m3 (6) 3.0 μg/m3 (13) 27.0
 
Jan. 14, 2021, 9 a.m. N/A 0.1 ppb (1) 1.6 ppb (2) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.25 ppb (3) 17.0 μg/m3 (16) 3.0 μg/m3 (13) 23.0
 
Jan. 14, 2021, 8 a.m. N/A 1.5 ppb (2) 15.2 ppb (15) N/A N/A 0.0 ppb (0) 7.0 ppb (7) 0.25 ppb (3) 12.0 μg/m3 (12) 5.0 μg/m3 (21) 21.0
 
Jan. 14, 2021, 7 a.m. N/A 2.7 ppb (3) 18.7 ppb (18) N/A N/A 0.0 ppb (0) 6.0 ppb (6) 0.25 ppb (3) 13.0 μg/m3 (13) 5.0 μg/m3 (21) 21.0
 
Jan. 14, 2021, 6 a.m. N/A 3.8 ppb (4) 20.6 ppb (20) N/A N/A 0.0 ppb (0) 7.0 ppb (7) 0.25 ppb (3) 17.0 μg/m3 (16) 6.0 μg/m3 (25) 25.0
 
Jan. 14, 2021, 5 a.m. N/A 2.9 ppb (3) 16.9 ppb (16) N/A N/A 0.0 ppb (0) 10.0 ppb (10) 0.24 ppb (3) 19.0 μg/m3 (18) 4.0 μg/m3 (17) 18.0
 
Jan. 14, 2021, 4 a.m. N/A 0.2 ppb (1) 10.6 ppb (10) N/A N/A 0.0 ppb (0) 14.0 ppb (13) 0.24 ppb (3) 15.0 μg/m3 (14) 5.0 μg/m3 (21) 21.0
 
Jan. 14, 2021, 3 a.m. N/A 0.7 ppb (1) 14.4 ppb (14) N/A N/A 0.0 ppb (0) 13.0 ppb (13) 0.24 ppb (3) 20.0 μg/m3 (19) 6.0 μg/m3 (25) 25.0
 
Jan. 14, 2021, 2 a.m. N/A 0.9 ppb (1) 14.5 ppb (14) N/A N/A 0.0 ppb (0) 12.0 ppb (12) 0.26 ppb (4) 18.0 μg/m3 (17) 6.0 μg/m3 (25) 25.0
 
Jan. 14, 2021, 1 a.m. N/A 2.9 ppb (3) 24.3 ppb (23) N/A N/A 0.0 ppb (0) 4.0 ppb (4) 0.26 ppb (4) 26.0 μg/m3 (25) 8.0 μg/m3 (34) 34.0
 
Jan. 14, 2021, midnight N/A 0.9 ppb (1) 22.5 ppb (22) N/A N/A 0.0 ppb (0) 5.0 ppb (5) 0.25 ppb (3) 29.0 μg/m3 (27) 8.0 μg/m3 (34) 34.0
 
Jan. 13, 2021, 11 p.m. N/A 0.5 ppb (1) 18.2 ppb (18) N/A N/A 0.0 ppb (0) 9.0 ppb (9) 0.22 ppb (3) 25.0 μg/m3 (24) 6.0 μg/m3 (25) 25.0
 
Jan. 13, 2021, 10 p.m. N/A 0.9 ppb (1) 8.3 ppb (8) N/A N/A 0.0 ppb (0) 17.0 ppb (16) 0.2 ppb (3) 19.0 μg/m3 (18) 4.0 μg/m3 (17) 18.0
 
Jan. 13, 2021, 9 p.m. N/A 2.5 ppb (3) 10.0 ppb (10) N/A N/A 0.0 ppb (0) 16.0 ppb (15) 0.2 ppb (3) 18.0 μg/m3 (17) 4.0 μg/m3 (17) 17.0
 
Jan. 13, 2021, 8 p.m. N/A 2.5 ppb (3) 7.6 ppb (8) N/A N/A 0.0 ppb (0) 15.0 ppb (14) 0.21 ppb (3) 14.0 μg/m3 (13) 3.0 μg/m3 (13) 14.0
 
Jan. 13, 2021, 7 p.m. N/A 3.5 ppb (4) 8.6 ppb (9) N/A N/A 0.0 ppb (0) 14.0 ppb (13) 0.23 ppb (3) 19.0 μg/m3 (18) 4.0 μg/m3 (17) 18.0
 
Jan. 13, 2021, 6 p.m. N/A 7.9 ppb (8) 16.4 ppb (16) N/A N/A 0.0 ppb (0) 10.0 ppb (10) 0.23 ppb (3) 30.0 μg/m3 (28) 5.0 μg/m3 (21) 28.0
 
Jan. 13, 2021, 5 p.m. N/A 9.9 ppb (10) 19.2 ppb (19) N/A N/A 0.0 ppb (0) 8.0 ppb (8) 0.25 ppb (3) 35.0 μg/m3 (33) 6.0 μg/m3 (25) 33.0
 
Jan. 13, 2021, 4 p.m. N/A 6.8 ppb (7) 14.6 ppb (14) N/A N/A 0.0 ppb (0) 10.0 ppb (10) 0.21 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 13, 2021, 3 p.m. N/A 4.4 ppb (5) 13.8 ppb (14) N/A N/A 0.0 ppb (0) 10.0 ppb (10) 0.25 ppb (3) 26.0 μg/m3 (25) 5.0 μg/m3 (21) 25.0
 
Jan. 13, 2021, 2 p.m. N/A 3.7 ppb (4) 15.4 ppb (15) N/A N/A 0.0 ppb (0) 8.0 ppb (8) 0.23 ppb (3) 26.0 μg/m3 (25) 5.0 μg/m3 (21) 25.0
 
Jan. 13, 2021, 1 p.m. N/A 1.4 ppb (2) 13.3 ppb (13) N/A N/A 0.0 ppb (0) 8.0 ppb (8) 0.22 ppb (3) 20.0 μg/m3 (19) 3.0 μg/m3 (13) 19.0
 
Jan. 13, 2021, noon N/A 1.9 ppb (2) 16.0 ppb (16) N/A N/A 0.0 ppb (0) 7.0 ppb (7) 0.22 ppb (3) 19.0 μg/m3 (18) 4.0 μg/m3 (17) 18.0
 
Jan. 13, 2021, 11 a.m. N/A 0.3 ppb (1) 8.3 ppb (8) N/A N/A 0.0 ppb (0) 13.0 ppb (13) 0.23 ppb (3) 15.0 μg/m3 (14) 5.0 μg/m3 (21) 21.0
 
Jan. 13, 2021, 10 a.m. N/A 0.1 ppb (1) 7.2 ppb (7) N/A N/A 0.0 ppb (0) 14.0 ppb (13) 0.25 ppb (3) 16.0 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
Jan. 13, 2021, 9 a.m. N/A 0.1 ppb (1) 6.4 ppb (7) N/A N/A 0.0 ppb (0) 15.0 ppb (14) 0.25 ppb (3) 10.0 μg/m3 (10) 7.0 μg/m3 (30) 30.0
 
Jan. 13, 2021, 8 a.m. N/A 0.1 ppb (1) 7.8 ppb (8) N/A N/A 0.0 ppb (0) 13.0 ppb (13) 0.26 ppb (4) 8.0 μg/m3 (8) 1.0 μg/m3 (5) 13.0
 
Jan. 13, 2021, 7 a.m. N/A 0.1 ppb (1) 8.6 ppb (9) N/A N/A 0.0 ppb (0) 13.0 ppb (13) 0.26 ppb (4) 11.0 μg/m3 (11) 3.0 μg/m3 (13) 13.0
 
Jan. 13, 2021, 6 a.m. N/A 0.1 ppb (1) 10.6 ppb (10) N/A N/A 0.0 ppb (0) 11.0 ppb (11) 0.26 ppb (4) 9.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
Jan. 13, 2021, 5 a.m. N/A 0.1 ppb (1) 10.1 ppb (10) N/A N/A 0.0 ppb (0) 12.0 ppb (12) 0.27 ppb (4) 14.0 μg/m3 (13) 5.0 μg/m3 (21) 21.0
 
Jan. 13, 2021, 4 a.m. N/A 0.1 ppb (1) 10.3 ppb (10) N/A N/A 0.0 ppb (0) 11.0 ppb (11) 0.27 ppb (4) 12.0 μg/m3 (12) 4.0 μg/m3 (17) 17.0
 
Jan. 13, 2021, 3 a.m. N/A 0.2 ppb (1) 11.5 ppb (11) N/A N/A 0.0 ppb (0) 11.0 ppb (11) 0.29 ppb (4) 17.0 μg/m3 (16) 6.0 μg/m3 (25) 25.0
 
Jan. 13, 2021, 2 a.m. N/A 0.4 ppb (1) 10.5 ppb (10) N/A N/A 0.0 ppb (0) 13.0 ppb (13) 0.32 ppb (4) 17.0 μg/m3 (16) 5.0 μg/m3 (21) 21.0
 
Jan. 13, 2021, 1 a.m. N/A 18.6 ppb (18) 42.9 ppb (41) N/A N/A 0.0 ppb (0) 1.0 ppb (1) 0.34 ppb (4) 31.0 μg/m3 (29) 9.0 μg/m3 (38) 41.0
 
Jan. 13, 2021, midnight N/A 1.5 ppb (2) 20.2 ppb (20) N/A N/A 0.0 ppb (0) 7.0 ppb (7) 0.32 ppb (4) 17.0 μg/m3 (16) 7.0 μg/m3 (30) 30.0
 
Jan. 12, 2021, 11 p.m. N/A 3.5 ppb (4) 25.3 ppb (24) N/A N/A 0.0 ppb (0) 4.0 ppb (4) 0.32 ppb (4) 32.0 μg/m3 (30) 8.0 μg/m3 (34) 34.0
 
Jan. 12, 2021, 10 p.m. N/A 4.5 ppb (5) 18.9 ppb (18) N/A N/A 0.0 ppb (0) 9.0 ppb (9) 0.31 ppb (4) 26.0 μg/m3 (25) 5.0 μg/m3 (21) 25.0
 
Jan. 12, 2021, 9 p.m. N/A 7.2 ppb (7) 20.0 ppb (19) N/A N/A 0.0 ppb (0) 10.0 ppb (10) 0.35 ppb (4) 21.0 μg/m3 (20) 7.0 μg/m3 (30) 30.0
 
Jan. 12, 2021, 8 p.m. N/A 7.9 ppb (8) 19.2 ppb (19) N/A N/A 0.0 ppb (0) 11.0 ppb (11) 0.49 ppb (6) 23.0 μg/m3 (22) 7.0 μg/m3 (30) 30.0
 
Jan. 12, 2021, 7 p.m. N/A 11.5 ppb (11) 23.4 ppb (23) N/A N/A 0.0 ppb (0) 9.0 ppb (9) 0.52 ppb (6) 32.0 μg/m3 (30) 9.0 μg/m3 (38) 38.0
 
Jan. 12, 2021, 6 p.m. N/A 16.2 ppb (16) 31.1 ppb (30) N/A N/A 0.0 ppb (0) 7.0 ppb (7) 0.39 ppb (5) 45.0 μg/m3 (42) 13.0 μg/m3 (53) 53.0
 
Jan. 12, 2021, 5 p.m. N/A 26.3 ppb (25) 44.0 ppb (42) N/A N/A 0.0 ppb (0) 3.0 ppb (3) 0.42 ppb (5) 29.0 μg/m3 (27) 14.0 μg/m3 (55) 55.0
 
Jan. 12, 2021, 4 p.m. N/A 31.2 ppb (30) 50.1 ppb (48) N/A N/A 0.0 ppb (0) 2.0 ppb (2) 0.46 ppb (6) 19.0 μg/m3 (18) 6.0 μg/m3 (25) 48.0
 
Jan. 12, 2021, 3 p.m. N/A 30.7 ppb (29) 50.9 ppb (49) N/A N/A 0.0 ppb (0) 1.0 ppb (1) 0.45 ppb (6) 16.0 μg/m3 (15) 5.0 μg/m3 (21) 49.0
 
Jan. 12, 2021, 2 p.m. N/A 35.1 ppb (34) 57.5 ppb (55) N/A N/A 0.0 ppb (0) 0.0 ppb (0) 0.34 ppb (4) 10.0 μg/m3 (10) 7.0 μg/m3 (30) 55.0
 
Jan. 12, 2021, 1 p.m. N/A 12.8 ppb (13) 36.1 ppb (35) N/A N/A 0.0 ppb (0) 0.0 ppb (0) 0.28 ppb (4) 9.0 μg/m3 (9) 5.0 μg/m3 (21) 35.0
 
Jan. 12, 2021, noon N/A 7.9 ppb (8) 29.6 ppb (28) N/A N/A 0.0 ppb (0) 0.0 ppb (0) 0.28 ppb (4) 6.0 μg/m3 (6) 6.0 μg/m3 (25) 28.0
 
Jan. 12, 2021, 11 a.m. N/A 4.9 ppb (5) 26.3 ppb (25) N/A N/A 0.0 ppb (0) 0.0 ppb (0) 0.28 ppb (4) 7.0 μg/m3 (7) 3.0 μg/m3 (13) 25.0
 
Jan. 12, 2021, 10 a.m. N/A 3.2 ppb (4) 24.4 ppb (24) N/A N/A 0.0 ppb (0) 0.0 ppb (0) 0.29 ppb (4) 4.0 μg/m3 (4) 2.0 μg/m3 (9) 24.0
 
Jan. 12, 2021, 9 a.m. N/A 0.6 ppb (1) 18.5 ppb (18) N/A N/A 0.0 ppb (0) 3.0 ppb (3) 0.29 ppb (4) 9.0 μg/m3 (9) 5.0 μg/m3 (21) 21.0
 
Jan. 12, 2021, 8 a.m. N/A 0.9 ppb (1) 19.1 ppb (19) N/A N/A 0.0 ppb (0) 3.0 ppb (3) 0.29 ppb (4) 14.0 μg/m3 (13) 7.0 μg/m3 (30) 30.0
 
Jan. 12, 2021, 7 a.m. N/A 0.2 ppb (1) 15.4 ppb (15) N/A N/A 0.0 ppb (0) 6.0 ppb (6) 0.3 ppb (4) 11.0 μg/m3 (11) 9.0 μg/m3 (38) 38.0
 
Jan. 12, 2021, 6 a.m. N/A 0.3 ppb (1) 16.7 ppb (16) N/A N/A 0.0 ppb (0) 6.0 ppb (6) 0.3 ppb (4) 12.0 μg/m3 (12) 6.0 μg/m3 (25) 25.0
 
Jan. 12, 2021, 5 a.m. N/A 0.6 ppb (1) 19.4 ppb (19) N/A N/A 0.0 ppb (0) 4.0 ppb (4) 0.3 ppb (4) 13.0 μg/m3 (13) 9.0 μg/m3 (38) 38.0
 
Jan. 12, 2021, 4 a.m. N/A 0.3 ppb (1) 18.2 ppb (18) N/A N/A 0.0 ppb (0) 6.0 ppb (6) 0.29 ppb (4) 10.0 μg/m3 (10) 5.0 μg/m3 (21) 21.0
 
Jan. 12, 2021, 3 a.m. N/A 0.3 ppb (1) 16.9 ppb (16) N/A N/A 0.0 ppb (0) 9.0 ppb (9) 0.29 ppb (4) 10.0 μg/m3 (10) 6.0 μg/m3 (25) 25.0
 
Jan. 12, 2021, 2 a.m. N/A 0.2 ppb (1) 16.6 ppb (16) N/A N/A 0.0 ppb (0) 10.0 ppb (10) 0.31 ppb (4) 15.0 μg/m3 (14) 6.0 μg/m3 (25) 25.0
 
Jan. 12, 2021, 1 a.m. N/A 0.9 ppb (1) 20.1 ppb (19) N/A N/A 0.0 ppb (0) 8.0 ppb (8) 0.31 ppb (4) 12.0 μg/m3 (12) 3.0 μg/m3 (13) 19.0
 
Jan. 12, 2021, midnight N/A 0.5 ppb (1) 18.5 ppb (18) N/A N/A 0.0 ppb (0) 10.0 ppb (10) 0.3 ppb (4) 20.0 μg/m3 (19) 2.0 μg/m3 (9) 19.0
 
Jan. 11, 2021, 11 p.m. N/A 0.5 ppb (1) 12.3 ppb (12) N/A N/A 0.0 ppb (0) 16.0 ppb (15) 0.29 ppb (4) 13.0 μg/m3 (13) -2.0 μg/m3 (0) 15.0
 
Jan. 11, 2021, 10 p.m. N/A 1.3 ppb (2) 7.9 ppb (8) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.28 ppb (4) 12.0 μg/m3 (12) 0.0 μg/m3 (0) 19.0
 
Jan. 11, 2021, 9 p.m. N/A 1.4 ppb (2) 5.9 ppb (6) N/A N/A N/A 22.0 ppb (21) 0.24 ppb (3) 10.0 μg/m3 (10) 5.0 μg/m3 (21) 21.0
 
Jan. 11, 2021, 8 p.m. N/A 3.2 ppb (4) 9.4 ppb (9) N/A N/A N/A 17.0 ppb (16) N/A 17.0 μg/m3 (16) 8.0 μg/m3 (34) 34.0
 
Jan. 11, 2021, 7 p.m. N/A 2.5 ppb (3) 7.5 ppb (8) N/A N/A 0.0 ppb (0) 18.0 ppb (17) 0.31 ppb (4) 16.0 μg/m3 (15) 10.0 μg/m3 (42) 42.0
 
Jan. 11, 2021, 6 p.m. N/A 3.1 ppb (3) 8.2 ppb (8) N/A N/A 0.0 ppb (0) 16.0 ppb (15) 0.31 ppb (4) 16.0 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
Jan. 11, 2021, 5 p.m. N/A 3.8 ppb (4) 8.6 ppb (9) N/A N/A 0.0 ppb (0) 13.0 ppb (13) 0.29 ppb (4) 11.0 μg/m3 (11) 5.0 μg/m3 (21) 21.0
 
Jan. 11, 2021, 4 p.m. N/A 3.6 ppb (4) 8.2 ppb (8) N/A N/A 0.0 ppb (0) 11.0 ppb (11) 0.3 ppb (4) 6.0 μg/m3 (6) 5.0 μg/m3 (21) 21.0
 
Jan. 11, 2021, 3 p.m. N/A 6.7 ppb (7) 15.2 ppb (15) N/A N/A 0.0 ppb (0) 5.0 ppb (5) 0.27 ppb (4) 9.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
Jan. 11, 2021, 2 p.m. N/A 6.0 ppb (6) 20.2 ppb (20) N/A N/A 0.0 ppb (0) 1.0 ppb (1) 0.23 ppb (3) 5.0 μg/m3 (5) 3.0 μg/m3 (13) 20.0
 
Jan. 11, 2021, 1 p.m. N/A 2.5 ppb (3) 15.4 ppb (15) N/A N/A 0.0 ppb (0) 1.0 ppb (1) 0.2 ppb (3) 6.0 μg/m3 (6) 4.0 μg/m3 (17) 17.0
 
Jan. 11, 2021, noon N/A 1.1 ppb (2) 12.1 ppb (12) N/A N/A 0.0 ppb (0) 2.0 ppb (2) 0.19 ppb (3) 5.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
Jan. 11, 2021, 11 a.m. N/A 0.5 ppb (1) 9.5 ppb (9) N/A N/A 0.0 ppb (0) 3.0 ppb (3) 0.2 ppb (3) 6.0 μg/m3 (6) 6.0 μg/m3 (25) 25.0
 
Jan. 11, 2021, 10 a.m. N/A 0.4 ppb (1) 10.4 ppb (10) N/A N/A 0.0 ppb (0) 4.0 ppb (4) 0.2 ppb (3) 5.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
Jan. 11, 2021, 9 a.m. N/A 0.2 ppb (1) 7.5 ppb (8) N/A N/A 0.0 ppb (0) 8.0 ppb (8) 0.2 ppb (3) 5.0 μg/m3 (5) 4.0 μg/m3 (17) 17.0
 
Jan. 11, 2021, 8 a.m. N/A 0.1 ppb (1) 5.6 ppb (6) N/A N/A 0.0 ppb (0) 14.0 ppb (13) 0.19 ppb (3) 4.0 μg/m3 (4) 4.0 μg/m3 (17) 17.0
 
Jan. 11, 2021, 7 a.m. N/A 0.1 ppb (1) 6.3 ppb (6) N/A N/A 0.0 ppb (0) 16.0 ppb (15) 0.19 ppb (3) 4.0 μg/m3 (4) 4.0 μg/m3 (17) 17.0
 
Jan. 11, 2021, 6 a.m. N/A 0.1 ppb (1) 5.8 ppb (6) N/A N/A 0.0 ppb (0) 19.0 ppb (18) 0.19 ppb (3) 2.0 μg/m3 (2) 4.0 μg/m3 (17) 18.0
 
Jan. 11, 2021, 5 a.m. N/A 0.1 ppb (1) 3.5 ppb (4) N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.18 ppb (3) 3.0 μg/m3 (3) 2.0 μg/m3 (9) 22.0
 
Jan. 11, 2021, 4 a.m. N/A 0.1 ppb (1) 3.0 ppb (3) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.18 ppb (3) 5.0 μg/m3 (5) 2.0 μg/m3 (9) 25.0
 
Jan. 11, 2021, 3 a.m. N/A 0.1 ppb (1) 3.0 ppb (3) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.18 ppb (3) 7.0 μg/m3 (7) 4.0 μg/m3 (17) 25.0
 
Jan. 11, 2021, 2 a.m. N/A 0.1 ppb (1) 4.2 ppb (4) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.18 ppb (3) 9.0 μg/m3 (9) 5.0 μg/m3 (21) 24.0
 
Jan. 11, 2021, 1 a.m. N/A 0.2 ppb (1) 4.9 ppb (5) N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.19 ppb (3) 6.0 μg/m3 (6) 3.0 μg/m3 (13) 22.0
 
Jan. 11, 2021, midnight N/A 0.2 ppb (1) 6.1 ppb (6) N/A N/A 0.0 ppb (0) 19.0 ppb (18) 0.2 ppb (3) 6.0 μg/m3 (6) 5.0 μg/m3 (21) 21.0
 
Jan. 10, 2021, 11 p.m. N/A 0.3 ppb (1) 6.7 ppb (7) N/A N/A 0.0 ppb (0) 14.0 ppb (13) 0.2 ppb (3) 8.0 μg/m3 (8) 8.0 μg/m3 (34) 34.0
 
Jan. 10, 2021, 10 p.m. N/A 0.5 ppb (1) 6.1 ppb (6) N/A N/A 0.0 ppb (0) 15.0 ppb (14) 0.2 ppb (3) 8.0 μg/m3 (8) 5.0 μg/m3 (21) 21.0
 
Jan. 10, 2021, 9 p.m. N/A 0.8 ppb (1) 5.9 ppb (6) N/A N/A 0.0 ppb (0) 17.0 ppb (16) 0.2 ppb (3) 6.0 μg/m3 (6) 5.0 μg/m3 (21) 21.0
 
Jan. 10, 2021, 8 p.m. N/A 1.1 ppb (2) 6.9 ppb (7) N/A N/A 0.0 ppb (0) 15.0 ppb (14) 0.2 ppb (3) 8.0 μg/m3 (8) 8.0 μg/m3 (34) 34.0
 
Jan. 10, 2021, 7 p.m. N/A 1.4 ppb (2) 7.0 ppb (7) N/A N/A 0.0 ppb (0) 13.0 ppb (13) 0.2 ppb (3) 10.0 μg/m3 (10) 9.0 μg/m3 (38) 38.0
 
Jan. 10, 2021, 6 p.m. N/A 1.2 ppb (2) 7.2 ppb (7) N/A N/A 0.0 ppb (0) 10.0 ppb (10) 0.2 ppb (3) 10.0 μg/m3 (10) 13.0 μg/m3 (53) 53.0
 
Jan. 10, 2021, 5 p.m. N/A 1.8 ppb (2) 11.1 ppb (11) N/A N/A 0.0 ppb (0) 7.0 ppb (7) 0.21 ppb (3) 20.0 μg/m3 (19) 18.0 μg/m3 (64) 64.0
 
Jan. 10, 2021, 4 p.m. N/A 2.6 ppb (3) 14.1 ppb (14) N/A N/A 0.0 ppb (0) 6.0 ppb (6) 0.2 ppb (3) 25.0 μg/m3 (24) 22.0 μg/m3 (72) 72.0
 
Jan. 10, 2021, 3 p.m. N/A 1.7 ppb (2) 13.5 ppb (13) N/A N/A 0.0 ppb (0) 6.0 ppb (6) 0.19 ppb (3) 25.0 μg/m3 (24) 18.0 μg/m3 (64) 64.0
 
Jan. 10, 2021, 2 p.m. N/A 0.6 ppb (1) 10.0 ppb (10) N/A N/A 0.0 ppb (0) 7.0 ppb (7) 0.19 ppb (3) 25.0 μg/m3 (24) 18.0 μg/m3 (64) 64.0
 
Jan. 10, 2021, 1 p.m. N/A 0.2 ppb (1) 9.0 ppb (9) N/A N/A 0.0 ppb (0) 8.0 ppb (8) 0.19 ppb (3) 24.0 μg/m3 (23) 19.0 μg/m3 (66) 66.0
 
Jan. 10, 2021, noon N/A 0.6 ppb (1) 11.4 ppb (11) N/A N/A 0.0 ppb (0) 8.0 ppb (8) 0.19 ppb (3) 22.0 μg/m3 (21) 17.0 μg/m3 (62) 62.0
 
Jan. 10, 2021, 11 a.m. N/A 0.2 ppb (1) 10.6 ppb (10) N/A N/A 0.0 ppb (0) 10.0 ppb (10) 0.2 ppb (3) 26.0 μg/m3 (25) 20.0 μg/m3 (68) 68.0
 
Jan. 10, 2021, 10 a.m. N/A 0.2 ppb (1) 8.6 ppb (9) N/A N/A 0.0 ppb (0) 12.0 ppb (12) 0.19 ppb (3) 20.0 μg/m3 (19) 21.0 μg/m3 (70) 70.0
 
Jan. 10, 2021, 9 a.m. N/A 0.2 ppb (1) 9.1 ppb (9) N/A N/A 0.0 ppb (0) 11.0 ppb (11) 0.19 ppb (3) 30.0 μg/m3 (28) 30.0 μg/m3 (89) 89.0
 
Jan. 10, 2021, 8 a.m. N/A 0.3 ppb (1) 9.0 ppb (9) N/A N/A 0.0 ppb (0) 10.0 ppb (10) 0.19 ppb (3) 35.0 μg/m3 (33) 34.0 μg/m3 (98) 98.0
 
Jan. 10, 2021, 7 a.m. N/A 0.3 ppb (1) 8.5 ppb (9) N/A N/A 0.0 ppb (0) 11.0 ppb (11) 0.19 ppb (3) 28.0 μg/m3 (26) 26.0 μg/m3 (81) 81.0
 
Jan. 10, 2021, 6 a.m. N/A 0.3 ppb (1) 7.4 ppb (7) N/A N/A 0.0 ppb (0) 12.0 ppb (12) 0.18 ppb (3) 21.0 μg/m3 (20) 20.0 μg/m3 (68) 68.0
 
Jan. 10, 2021, 5 a.m. N/A 0.3 ppb (1) 6.0 ppb (6) N/A N/A 0.0 ppb (0) 15.0 ppb (14) 0.18 ppb (3) 18.0 μg/m3 (17) 18.0 μg/m3 (64) 64.0
 
Jan. 10, 2021, 4 a.m. N/A 0.4 ppb (1) 7.0 ppb (7) N/A N/A 0.0 ppb (0) 13.0 ppb (13) 0.17 ppb (3) 20.0 μg/m3 (19) 22.0 μg/m3 (72) 72.0
 
Jan. 10, 2021, 3 a.m. N/A 0.4 ppb (1) 7.9 ppb (8) N/A N/A 0.0 ppb (0) 13.0 ppb (13) 0.17 ppb (3) 26.0 μg/m3 (25) 23.0 μg/m3 (74) 74.0
 
Jan. 10, 2021, 2 a.m. N/A 0.3 ppb (1) 8.4 ppb (8) N/A N/A 0.0 ppb (0) 13.0 ppb (13) 0.17 ppb (3) 30.0 μg/m3 (28) 35.0 μg/m3 (100) 100.0
 
Jan. 10, 2021, 1 a.m. N/A 0.2 ppb (1) 8.7 ppb (9) N/A N/A 0.0 ppb (0) 14.0 ppb (13) 0.17 ppb (3) 26.0 μg/m3 (25) 23.0 μg/m3 (74) 74.0
 
Jan. 10, 2021, midnight N/A 0.2 ppb (1) 6.0 ppb (6) N/A N/A 0.0 ppb (0) 18.0 ppb (17) 0.16 ppb (3) 16.0 μg/m3 (15) 17.0 μg/m3 (62) 62.0
 
Jan. 9, 2021, 11 p.m. N/A 0.2 ppb (1) 5.5 ppb (6) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.17 ppb (3) 19.0 μg/m3 (18) 16.0 μg/m3 (60) 60.0
 
Jan. 9, 2021, 10 p.m. N/A 0.6 ppb (1) 6.6 ppb (7) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.17 ppb (3) 22.0 μg/m3 (21) 17.0 μg/m3 (62) 62.0
 
Jan. 9, 2021, 9 p.m. N/A 0.9 ppb (1) 6.2 ppb (6) N/A N/A 0.0 ppb (0) 21.0 ppb (20) 0.17 ppb (3) 14.0 μg/m3 (13) 15.0 μg/m3 (58) 58.0
 
Jan. 9, 2021, 8 p.m. N/A 1.1 ppb (2) 6.2 ppb (6) N/A N/A 0.0 ppb (0) 21.0 ppb (20) 0.17 ppb (3) 18.0 μg/m3 (17) 16.0 μg/m3 (60) 60.0
 
Jan. 9, 2021, 7 p.m. N/A 1.4 ppb (2) 6.7 ppb (7) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.17 ppb (3) 17.0 μg/m3 (16) 15.0 μg/m3 (58) 58.0
 
Jan. 9, 2021, 6 p.m. N/A 1.5 ppb (2) 7.4 ppb (7) N/A N/A 0.0 ppb (0) 19.0 ppb (18) 0.17 ppb (3) 16.0 μg/m3 (15) 13.0 μg/m3 (53) 53.0
 
Jan. 9, 2021, 5 p.m. N/A 1.4 ppb (2) 7.4 ppb (7) N/A N/A 0.0 ppb (0) 19.0 ppb (18) 0.2 ppb (3) 16.0 μg/m3 (15) 21.0 μg/m3 (70) 70.0
 
Jan. 9, 2021, 4 p.m. N/A 1.0 ppb (1) 6.8 ppb (7) N/A N/A 0.0 ppb (0) 18.0 ppb (17) 0.2 ppb (3) 19.0 μg/m3 (18) 12.0 μg/m3 (50) 50.0
 
Jan. 9, 2021, 3 p.m. N/A 0.6 ppb (1) 6.4 ppb (7) N/A N/A 0.0 ppb (0) 17.0 ppb (16) 0.2 ppb (3) 14.0 μg/m3 (13) 16.0 μg/m3 (60) 60.0
 
Jan. 9, 2021, 2 p.m. N/A 0.3 ppb (1) 6.3 ppb (6) N/A N/A 0.0 ppb (0) 17.0 ppb (16) 0.2 ppb (3) 13.0 μg/m3 (13) N/A 16.0
 
Jan. 9, 2021, 1 p.m. N/A 0.2 ppb (1) 6.7 ppb (7) N/A N/A 0.0 ppb (0) 16.0 ppb (15) 0.21 ppb (3) 17.0 μg/m3 (16) 12.0 μg/m3 (50) 50.0
 
Jan. 9, 2021, noon N/A 0.1 ppb (1) 6.9 ppb (7) N/A N/A 0.0 ppb (0) 17.0 ppb (16) 0.22 ppb (3) 14.0 μg/m3 (13) 19.0 μg/m3 (66) 66.0
 
Jan. 9, 2021, 11 a.m. N/A 0.2 ppb (1) 6.4 ppb (7) N/A N/A 0.0 ppb (0) 17.0 ppb (16) 0.24 ppb (3) 21.0 μg/m3 (20) 19.0 μg/m3 (66) 66.0
 
Jan. 9, 2021, 10 a.m. N/A 0.4 ppb (1) 8.5 ppb (9) N/A N/A 0.0 ppb (0) 15.0 ppb (14) 0.24 ppb (3) 24.0 μg/m3 (23) 27.0 μg/m3 (83) 83.0
 
Jan. 9, 2021, 9 a.m. N/A 0.2 ppb (1) 8.9 ppb (9) N/A N/A 0.0 ppb (0) 14.0 ppb (13) 0.24 ppb (3) 37.0 μg/m3 (35) 39.0 μg/m3 (110) 110.0
 
Jan. 9, 2021, 8 a.m. N/A 0.3 ppb (1) 9.4 ppb (9) N/A N/A 0.0 ppb (0) 14.0 ppb (13) 0.24 ppb (3) 31.0 μg/m3 (29) 32.0 μg/m3 (93) 93.0
 
Jan. 9, 2021, 7 a.m. N/A 0.4 ppb (1) 8.6 ppb (9) N/A N/A 0.0 ppb (0) 15.0 ppb (14) 0.24 ppb (3) 36.0 μg/m3 (34) 29.0 μg/m3 (87) 87.0
 
Jan. 9, 2021, 6 a.m. N/A 0.4 ppb (1) 9.4 ppb (9) N/A N/A 0.0 ppb (0) 14.0 ppb (13) 0.23 ppb (3) 38.0 μg/m3 (36) 34.0 μg/m3 (98) 98.0
 
Jan. 9, 2021, 5 a.m. N/A 0.3 ppb (1) 8.4 ppb (8) N/A N/A 0.0 ppb (0) 15.0 ppb (14) 0.23 ppb (3) 30.0 μg/m3 (28) 35.0 μg/m3 (100) 100.0
 
Jan. 9, 2021, 4 a.m. N/A 0.4 ppb (1) 10.5 ppb (10) N/A N/A 0.0 ppb (0) 13.0 ppb (13) 0.22 ppb (3) 27.0 μg/m3 (25) 31.0 μg/m3 (91) 91.0
 
Jan. 9, 2021, 3 a.m. N/A 0.5 ppb (1) 13.5 ppb (13) N/A N/A 0.0 ppb (0) 11.0 ppb (11) 0.23 ppb (3) 28.0 μg/m3 (26) 20.0 μg/m3 (68) 68.0
 
Jan. 9, 2021, 2 a.m. N/A 0.2 ppb (1) 7.6 ppb (8) N/A N/A 0.0 ppb (0) 16.0 ppb (15) 0.23 ppb (3) 24.0 μg/m3 (23) 24.0 μg/m3 (77) 77.0