ID: 539

AQSQID: 310550019

Site Name: Ncore

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

Updated: April 10, 2021, 7:42 p.m.

Location: Omaha (Field Club), NE

Reporting: True, Located: True

Current AQI: 31.0

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
April 10, 2021, 6 p.m. N/A 0.7 ppb (1) 3.2 ppb (4) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.15 ppb (2) 23.0 μg/m3 (22) 3.0 μg/m3 (13) 31.0
 
April 10, 2021, 5 p.m. N/A 0.5 ppb (1) 2.6 ppb (3) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.13 ppb (2) 19.0 μg/m3 (18) 2.0 μg/m3 (9) 30.0
 
April 10, 2021, 4 p.m. N/A 0.6 ppb (1) 2.9 ppb (3) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.13 ppb (2) 23.0 μg/m3 (22) 3.0 μg/m3 (13) 29.0
 
April 10, 2021, 3 p.m. N/A 1.0 ppb (1) 4.0 ppb (4) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.13 ppb (2) 15.0 μg/m3 (14) 4.0 μg/m3 (17) 26.0
 
April 10, 2021, 2 p.m. N/A 0.4 ppb (1) 2.6 ppb (3) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.13 ppb (2) 17.0 μg/m3 (16) 2.0 μg/m3 (9) 26.0
 
April 10, 2021, 1 p.m. N/A 0.5 ppb (1) 3.6 ppb (4) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.14 ppb (2) 13.0 μg/m3 (13) 3.0 μg/m3 (13) 24.0
 
April 10, 2021, noon N/A 0.2 ppb (1) 3.4 ppb (4) N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.14 ppb (2) 12.0 μg/m3 (12) 4.0 μg/m3 (17) 22.0
 
April 10, 2021, 11 a.m. N/A 0.0 ppb (0) 2.7 ppb (3) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.13 ppb (2) 14.0 μg/m3 (13) 3.0 μg/m3 (13) 24.0
 
April 10, 2021, 10 a.m. N/A 0.0 ppb (0) 2.4 ppb (3) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.13 ppb (2) 11.0 μg/m3 (11) 4.0 μg/m3 (17) 25.0
 
April 10, 2021, 9 a.m. N/A 0.2 ppb (1) 4.7 ppb (5) N/A N/A 0.0 ppb (0) 18.0 ppb (17) 0.13 ppb (2) 12.0 μg/m3 (12) 7.0 μg/m3 (30) 30.0
 
April 10, 2021, 8 a.m. N/A 0.1 ppb (1) 4.0 ppb (4) N/A N/A 0.0 ppb (0) 18.0 ppb (17) 0.13 ppb (2) 14.0 μg/m3 (13) 4.0 μg/m3 (17) 17.0
 
April 10, 2021, 7 a.m. N/A 0.1 ppb (1) 4.3 ppb (5) N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.14 ppb (2) 15.0 μg/m3 (14) 4.0 μg/m3 (17) 21.0
 
April 10, 2021, 6 a.m. N/A 0.0 ppb (0) 4.3 ppb (5) N/A N/A 0.0 ppb (0) 21.0 ppb (20) 0.14 ppb (2) 20.0 μg/m3 (19) 3.0 μg/m3 (13) 20.0
 
April 10, 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) 0.14 ppb (2) 13.0 μg/m3 (13) 1.0 μg/m3 (5) 22.0
 
April 10, 2021, 4 a.m. N/A 0.0 ppb (0) 4.4 ppb (5) N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.16 ppb (3) 13.0 μg/m3 (13) 0.0 μg/m3 (0) 22.0
 
April 10, 2021, 3 a.m. N/A 0.0 ppb (0) 3.3 ppb (4) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.14 ppb (2) 14.0 μg/m3 (13) 2.0 μg/m3 (9) 24.0
 
April 10, 2021, 2 a.m. N/A 0.0 ppb (0) 2.9 ppb (3) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.14 ppb (2) 15.0 μg/m3 (14) 7.0 μg/m3 (30) 30.0
 
April 10, 2021, 1 a.m. N/A 0.0 ppb (0) 2.9 ppb (3) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.14 ppb (2) 15.0 μg/m3 (14) 9.0 μg/m3 (38) 38.0
 
April 10, 2021, midnight N/A 0.2 ppb (1) 4.9 ppb (5) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.15 ppb (2) 23.0 μg/m3 (22) 7.0 μg/m3 (30) 30.0
 
April 9, 2021, 11 p.m. N/A 0.1 ppb (1) 3.4 ppb (4) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.14 ppb (2) 19.0 μg/m3 (18) 3.0 μg/m3 (13) 33.0
 
April 9, 2021, 10 p.m. N/A 0.2 ppb (1) 2.8 ppb (3) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.15 ppb (2) 18.0 μg/m3 (17) 2.0 μg/m3 (9) 32.0
 
April 9, 2021, 9 p.m. N/A 0.3 ppb (1) 2.6 ppb (3) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.15 ppb (2) 14.0 μg/m3 (13) 0.0 μg/m3 (0) 33.0
 
April 9, 2021, 8 p.m. N/A 0.4 ppb (1) 2.5 ppb (3) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.16 ppb (3) 15.0 μg/m3 (14) 2.0 μg/m3 (9) 36.0
 
April 9, 2021, 7 p.m. N/A 0.6 ppb (1) 2.3 ppb (3) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.18 ppb (3) 7.0 μg/m3 (7) 2.0 μg/m3 (9) 34.0
 
April 9, 2021, 6 p.m. N/A 0.6 ppb (1) 2.5 ppb (3) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.15 ppb (2) 9.0 μg/m3 (9) 0.0 μg/m3 (0) 31.0
 
April 9, 2021, 5 p.m. N/A 0.7 ppb (1) 2.5 ppb (3) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.16 ppb (3) 9.0 μg/m3 (9) 1.0 μg/m3 (5) 28.0
 
April 9, 2021, 4 p.m. N/A 0.7 ppb (1) 2.3 ppb (3) N/A N/A 0.0 ppb (0) N/A 0.15 ppb (2) 10.0 μg/m3 (10) 3.0 μg/m3 (13) 13.0
 
April 9, 2021, 3 p.m. N/A 0.6 ppb (1) 2.6 ppb (3) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.18 ppb (3) 9.0 μg/m3 (9) 4.0 μg/m3 (17) 25.0
 
April 9, 2021, 2 p.m. N/A 0.8 ppb (1) 2.9 ppb (3) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.16 ppb (3) 10.0 μg/m3 (10) 2.0 μg/m3 (9) 25.0
 
April 9, 2021, 1 p.m. N/A 1.0 ppb (1) 4.5 ppb (5) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.17 ppb (3) 8.0 μg/m3 (8) 2.0 μg/m3 (9) 24.0
 
April 9, 2021, noon N/A 0.8 ppb (1) 6.7 ppb (7) N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.19 ppb (3) 4.0 μg/m3 (4) 3.0 μg/m3 (13) 21.0
 
April 9, 2021, 11 a.m. N/A 0.1 ppb (1) 3.7 ppb (4) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.16 ppb (3) -1.0 μg/m3 (0) -1.0 μg/m3 (0) 24.0
 
April 9, 2021, 10 a.m. N/A 0.1 ppb (1) 3.0 ppb (3) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.15 ppb (2) 2.0 μg/m3 (2) 0.0 μg/m3 (0) 25.0
 
April 9, 2021, 9 a.m. N/A 0.0 ppb (0) 3.2 ppb (4) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.15 ppb (2) 2.0 μg/m3 (2) 0.0 μg/m3 (0) 24.0
 
April 9, 2021, 8 a.m. N/A 0.0 ppb (0) 3.2 ppb (4) N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.15 ppb (2) 1.0 μg/m3 (1) 0.0 μg/m3 (0) 22.0
 
April 9, 2021, 7 a.m. N/A 0.1 ppb (1) 2.3 ppb (3) N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.15 ppb (2) 3.0 μg/m3 (3) 1.0 μg/m3 (5) 21.0
 
April 9, 2021, 6 a.m. N/A 0.1 ppb (1) 2.5 ppb (3) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.15 ppb (2) 2.0 μg/m3 (2) 3.0 μg/m3 (13) 26.0
 
April 9, 2021, 5 a.m. N/A 0.0 ppb (0) 2.4 ppb (3) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.15 ppb (2) 0.0 μg/m3 (0) 2.0 μg/m3 (9) 28.0
 
April 9, 2021, 4 a.m. N/A 0.1 ppb (1) 4.5 ppb (5) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.18 ppb (3) -1.0 μg/m3 (0) 3.0 μg/m3 (13) 24.0
 
April 9, 2021, 3 a.m. N/A 0.1 ppb (1) 2.9 ppb (3) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.16 ppb (3) 0.0 μg/m3 (0) 1.0 μg/m3 (5) 25.0
 
April 9, 2021, 2 a.m. N/A 0.1 ppb (1) 2.9 ppb (3) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.16 ppb (3) 2.0 μg/m3 (2) 1.0 μg/m3 (5) 23.0
 
April 9, 2021, 1 a.m. N/A 0.1 ppb (1) 2.8 ppb (3) N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.16 ppb (3) 2.0 μg/m3 (2) 3.0 μg/m3 (13) 22.0
 
April 9, 2021, midnight N/A 0.1 ppb (1) 2.4 ppb (3) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.16 ppb (3) -1.0 μg/m3 (0) 1.0 μg/m3 (5) 23.0
 
April 8, 2021, 11 p.m. N/A 0.3 ppb (1) 3.0 ppb (3) N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.16 ppb (3) 1.0 μg/m3 (1) 1.0 μg/m3 (5) 21.0
 
April 8, 2021, 10 p.m. N/A 0.4 ppb (1) 2.5 ppb (3) N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.16 ppb (3) 2.0 μg/m3 (2) 1.0 μg/m3 (5) 22.0
 
April 8, 2021, 9 p.m. N/A 0.7 ppb (1) 2.7 ppb (3) N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.17 ppb (3) -3.0 μg/m3 (0) -1.0 μg/m3 (0) 21.0
 
April 8, 2021, 8 p.m. N/A 0.7 ppb (1) 2.8 ppb (3) N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.17 ppb (3) -3.0 μg/m3 (0) -1.0 μg/m3 (0) 22.0
 
April 8, 2021, 7 p.m. N/A 0.6 ppb (1) 2.4 ppb (3) N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.16 ppb (3) 2.0 μg/m3 (2) -1.0 μg/m3 (0) 22.0
 
April 8, 2021, 6 p.m. N/A 0.6 ppb (1) 2.4 ppb (3) N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.15 ppb (2) 5.0 μg/m3 (5) -3.0 μg/m3 (0) 22.0
 
April 8, 2021, 5 p.m. N/A 0.4 ppb (1) 2.2 ppb (3) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.16 ppb (3) 5.0 μg/m3 (5) 0.0 μg/m3 (0) 23.0
 
April 8, 2021, 4 p.m. N/A 0.6 ppb (1) 2.5 ppb (3) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.16 ppb (3) 2.0 μg/m3 (2) 2.0 μg/m3 (9) 23.0
 
April 8, 2021, 3 p.m. N/A 0.5 ppb (1) 2.3 ppb (3) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.16 ppb (3) 2.0 μg/m3 (2) 1.0 μg/m3 (5) 23.0
 
April 8, 2021, 2 p.m. N/A 0.5 ppb (1) 2.3 ppb (3) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.16 ppb (3) 2.0 μg/m3 (2) 0.0 μg/m3 (0) 24.0
 
April 8, 2021, 1 p.m. N/A 0.4 ppb (1) 2.6 ppb (3) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.16 ppb (3) 1.0 μg/m3 (1) -1.0 μg/m3 (0) 24.0
 
April 8, 2021, noon N/A 0.4 ppb (1) 3.3 ppb (4) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.16 ppb (3) -1.0 μg/m3 (0) -2.0 μg/m3 (0) 23.0
 
April 8, 2021, 11 a.m. N/A 0.4 ppb (1) 3.3 ppb (4) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.16 ppb (3) 0.0 μg/m3 (0) -1.0 μg/m3 (0) 25.0
 
April 8, 2021, 10 a.m. N/A 0.2 ppb (1) 2.1 ppb (2) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.15 ppb (2) 3.0 μg/m3 (3) -1.0 μg/m3 (0) 25.0
 
April 8, 2021, 9 a.m. N/A 0.3 ppb (1) 2.3 ppb (3) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.15 ppb (2) 5.0 μg/m3 (5) -3.0 μg/m3 (0) 24.0
 
April 8, 2021, 8 a.m. N/A 0.2 ppb (1) 2.2 ppb (3) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.15 ppb (2) 5.0 μg/m3 (5) -1.0 μg/m3 (0) 23.0
 
April 8, 2021, 7 a.m. N/A 0.1 ppb (1) 1.8 ppb (2) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.16 ppb (3) 1.0 μg/m3 (1) 3.0 μg/m3 (13) 23.0
 
April 8, 2021, 6 a.m. N/A 0.2 ppb (1) 2.2 ppb (3) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.16 ppb (3) 2.0 μg/m3 (2) 1.0 μg/m3 (5) 23.0
 
April 8, 2021, 5 a.m. N/A 0.3 ppb (1) 3.0 ppb (3) N/A N/A 0.0 ppb (0) 21.0 ppb (20) 0.15 ppb (2) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 20.0
 
April 8, 2021, 4 a.m. N/A 0.4 ppb (1) 3.0 ppb (3) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.16 ppb (3) 2.0 μg/m3 (2) 1.0 μg/m3 (5) 19.0
 
April 8, 2021, 3 a.m. N/A 0.3 ppb (1) 2.9 ppb (3) N/A N/A 0.0 ppb (0) 19.0 ppb (18) 0.16 ppb (3) 3.0 μg/m3 (3) -1.0 μg/m3 (0) 18.0
 
April 8, 2021, 2 a.m. N/A 0.4 ppb (1) 3.7 ppb (4) N/A N/A 0.0 ppb (0) 18.0 ppb (17) 0.16 ppb (3) 2.0 μg/m3 (2) 0.0 μg/m3 (0) 17.0
 
April 8, 2021, 1 a.m. N/A 0.3 ppb (1) 3.6 ppb (4) N/A N/A 0.0 ppb (0) 19.0 ppb (18) 0.17 ppb (3) 4.0 μg/m3 (4) 1.0 μg/m3 (5) 18.0
 
April 8, 2021, midnight N/A 0.2 ppb (1) 3.3 ppb (4) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.18 ppb (3) 5.0 μg/m3 (5) 1.0 μg/m3 (5) 19.0
 
April 7, 2021, 11 p.m. N/A 0.3 ppb (1) 3.6 ppb (4) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.18 ppb (3) 4.0 μg/m3 (4) 2.0 μg/m3 (9) 19.0
 
April 7, 2021, 10 p.m. N/A 0.4 ppb (1) 4.4 ppb (5) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.19 ppb (3) 7.0 μg/m3 (7) 3.0 μg/m3 (13) 19.0
 
April 7, 2021, 9 p.m. N/A 0.5 ppb (1) 4.2 ppb (4) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.19 ppb (3) 8.0 μg/m3 (8) 3.0 μg/m3 (13) 19.0
 
April 7, 2021, 8 p.m. N/A 0.6 ppb (1) 3.6 ppb (4) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.18 ppb (3) 6.0 μg/m3 (6) 2.0 μg/m3 (9) 19.0
 
April 7, 2021, 7 p.m. N/A 1.4 ppb (2) 4.4 ppb (5) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.17 ppb (3) 8.0 μg/m3 (8) 0.0 μg/m3 (0) 19.0
 
April 7, 2021, 6 p.m. N/A 0.9 ppb (1) 4.3 ppb (5) N/A N/A 0.0 ppb (0) 19.0 ppb (18) 0.18 ppb (3) 8.0 μg/m3 (8) 1.0 μg/m3 (5) 18.0
 
April 7, 2021, 5 p.m. N/A 2.0 ppb (2) 5.6 ppb (6) N/A N/A 0.0 ppb (0) 18.0 ppb (17) 0.15 ppb (2) 7.0 μg/m3 (7) 2.0 μg/m3 (9) 17.0
 
April 7, 2021, 4 p.m. N/A 0.8 ppb (1) 3.2 ppb (4) N/A N/A 0.0 ppb (0) 18.0 ppb (17) 0.15 ppb (2) 8.0 μg/m3 (8) 3.0 μg/m3 (13) 17.0
 
April 7, 2021, 3 p.m. N/A 0.9 ppb (1) 3.9 ppb (4) N/A N/A 0.0 ppb (0) 16.0 ppb (15) 0.15 ppb (2) N/A N/A 15.0
 
April 7, 2021, 2 p.m. N/A 1.1 ppb (2) 4.8 ppb (5) N/A N/A 0.0 ppb (0) 14.0 ppb (13) 0.16 ppb (3) 7.0 μg/m3 (7) 3.0 μg/m3 (13) 13.0
 
April 7, 2021, 1 p.m. N/A 1.1 ppb (2) 6.2 ppb (6) N/A N/A 0.0 ppb (0) 12.0 ppb (12) 0.18 ppb (3) 7.0 μg/m3 (7) 3.0 μg/m3 (13) 13.0
 
April 7, 2021, noon N/A 0.5 ppb (1) 4.7 ppb (5) N/A N/A 0.0 ppb (0) 13.0 ppb (13) 0.16 ppb (3) 6.0 μg/m3 (6) 4.0 μg/m3 (17) 17.0
 
April 7, 2021, 11 a.m. N/A 0.1 ppb (1) 3.9 ppb (4) N/A N/A 0.0 ppb (0) 14.0 ppb (13) 0.15 ppb (2) 7.0 μg/m3 (7) 0.0 μg/m3 (0) 13.0
 
April 7, 2021, 10 a.m. N/A 0.0 ppb (0) 4.7 ppb (5) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.14 ppb (2) 9.0 μg/m3 (9) 1.0 μg/m3 (5) 31.0
 
April 7, 2021, 9 a.m. N/A 0.2 ppb (1) 6.0 ppb (6) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.14 ppb (2) 9.0 μg/m3 (9) 3.0 μg/m3 (13) 33.0
 
April 7, 2021, 8 a.m. N/A 0.0 ppb (0) 3.8 ppb (4) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.13 ppb (2) 11.0 μg/m3 (11) 4.0 μg/m3 (17) 35.0
 
April 7, 2021, 7 a.m. N/A 0.0 ppb (0) 1.9 ppb (2) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.13 ppb (2) 18.0 μg/m3 (17) 5.0 μg/m3 (21) 29.0
 
April 7, 2021, 6 a.m. N/A 0.7 ppb (1) 4.9 ppb (5) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.14 ppb (2) 24.0 μg/m3 (23) 7.0 μg/m3 (30) 30.0
 
April 7, 2021, 5 a.m. N/A 0.3 ppb (1) 5.4 ppb (6) N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.14 ppb (2) 25.0 μg/m3 (24) 5.0 μg/m3 (21) 24.0
 
April 7, 2021, 4 a.m. N/A 0.2 ppb (1) 4.4 ppb (5) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.15 ppb (2) 23.0 μg/m3 (22) 6.0 μg/m3 (25) 25.0
 
April 7, 2021, 3 a.m. N/A 0.5 ppb (1) 5.2 ppb (5) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.15 ppb (2) 22.0 μg/m3 (21) 7.0 μg/m3 (30) 30.0
 
April 7, 2021, 2 a.m. N/A 1.0 ppb (1) 7.0 ppb (7) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.16 ppb (3) 25.0 μg/m3 (24) 7.0 μg/m3 (30) 30.0
 
April 7, 2021, 1 a.m. N/A 1.0 ppb (1) 7.8 ppb (8) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.17 ppb (3) 26.0 μg/m3 (25) 8.0 μg/m3 (34) 34.0
 
April 7, 2021, midnight N/A 0.5 ppb (1) 5.1 ppb (5) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.16 ppb (3) 23.0 μg/m3 (22) 9.0 μg/m3 (38) 38.0
 
April 6, 2021, 11 p.m. N/A 0.1 ppb (1) 3.0 ppb (3) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.16 ppb (3) 36.0 μg/m3 (34) 9.0 μg/m3 (38) 38.0
 
April 6, 2021, 10 p.m. N/A 0.4 ppb (1) 4.7 ppb (5) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.17 ppb (3) 32.0 μg/m3 (30) 7.0 μg/m3 (30) 37.0
 
April 6, 2021, 9 p.m. N/A 0.6 ppb (1) 4.3 ppb (5) N/A N/A 0.0 ppb (0) 41.0 ppb (38) 0.17 ppb (3) 39.0 μg/m3 (37) 10.0 μg/m3 (42) 42.0
 
April 6, 2021, 8 p.m. N/A 1.1 ppb (2) 4.7 ppb (5) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.16 ppb (3) 36.0 μg/m3 (34) 13.0 μg/m3 (53) 53.0
 
April 6, 2021, 7 p.m. N/A 1.4 ppb (2) 5.4 ppb (6) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.16 ppb (3) 36.0 μg/m3 (34) 10.0 μg/m3 (42) 42.0
 
April 6, 2021, 6 p.m. N/A 1.5 ppb (2) 5.5 ppb (6) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.16 ppb (3) 25.0 μg/m3 (24) 9.0 μg/m3 (38) 38.0
 
April 6, 2021, 5 p.m. N/A 2.5 ppb (3) 7.9 ppb (8) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.17 ppb (3) 19.0 μg/m3 (18) 8.0 μg/m3 (34) 34.0
 
April 6, 2021, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.17 ppb (3) 14.0 μg/m3 (13) 9.0 μg/m3 (38) 38.0
 
April 6, 2021, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.14 ppb (2) 35.0 μg/m3 (33) 10.0 μg/m3 (42) 42.0
 
April 6, 2021, 2 p.m. N/A 1.4 ppb (2) 11.5 ppb (11) N/A N/A 0.0 ppb (0) N/A 0.16 ppb (3) 40.0 μg/m3 (38) 8.0 μg/m3 (34) 38.0
 
April 6, 2021, 1 p.m. N/A 1.8 ppb (2) 10.3 ppb (10) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.17 ppb (3) 31.0 μg/m3 (29) 10.0 μg/m3 (42) 42.0
 
April 6, 2021, noon N/A 2.6 ppb (3) 14.2 ppb (14) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.2 ppb (3) 30.0 μg/m3 (28) 6.0 μg/m3 (25) 28.0
 
April 6, 2021, 11 a.m. N/A 0.4 ppb (1) 6.7 ppb (7) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.15 ppb (2) 21.0 μg/m3 (20) 7.0 μg/m3 (30) 30.0
 
April 6, 2021, 10 a.m. N/A 0.3 ppb (1) 4.6 ppb (5) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.14 ppb (2) 23.0 μg/m3 (22) 8.0 μg/m3 (34) 34.0
 
April 6, 2021, 9 a.m. N/A 0.5 ppb (1) 5.0 ppb (5) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.14 ppb (2) 27.0 μg/m3 (25) 9.0 μg/m3 (38) 38.0
 
April 6, 2021, 8 a.m. N/A 0.0 ppb (0) 2.8 ppb (3) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.13 ppb (2) 24.0 μg/m3 (23) 9.0 μg/m3 (38) 38.0
 
April 6, 2021, 7 a.m. N/A 0.0 ppb (0) 2.5 ppb (3) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.13 ppb (2) 26.0 μg/m3 (25) 7.0 μg/m3 (30) 31.0
 
April 6, 2021, 6 a.m. N/A 0.1 ppb (1) 2.7 ppb (3) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.13 ppb (2) 33.0 μg/m3 (31) 7.0 μg/m3 (30) 32.0
 
April 6, 2021, 5 a.m. N/A 0.0 ppb (0) 2.6 ppb (3) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.13 ppb (2) 31.0 μg/m3 (29) 7.0 μg/m3 (30) 34.0
 
April 6, 2021, 4 a.m. N/A 0.0 ppb (0) 2.9 ppb (3) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.14 ppb (2) 39.0 μg/m3 (37) 9.0 μg/m3 (38) 38.0
 
April 6, 2021, 3 a.m. N/A 0.0 ppb (0) 3.2 ppb (4) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.14 ppb (2) 39.0 μg/m3 (37) 6.0 μg/m3 (25) 37.0
 
April 6, 2021, 2 a.m. N/A 0.0 ppb (0) 2.9 ppb (3) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.13 ppb (2) 40.0 μg/m3 (38) 5.0 μg/m3 (21) 38.0
 
April 6, 2021, 1 a.m. N/A 0.0 ppb (0) 3.3 ppb (4) N/A N/A 0.0 ppb (0) 41.0 ppb (38) 0.14 ppb (2) 38.0 μg/m3 (36) 6.0 μg/m3 (25) 38.0
 
April 6, 2021, midnight N/A 0.0 ppb (0) 3.2 ppb (4) N/A N/A 0.0 ppb (0) 46.0 ppb (43) 0.14 ppb (2) 41.0 μg/m3 (38) 7.0 μg/m3 (30) 43.0
 
April 5, 2021, 11 p.m. N/A 0.1 ppb (1) 3.0 ppb (3) N/A N/A 0.0 ppb (0) 48.0 ppb (45) 0.14 ppb (2) 35.0 μg/m3 (33) 6.0 μg/m3 (25) 45.0
 
April 5, 2021, 10 p.m. N/A 0.3 ppb (1) 3.2 ppb (4) N/A N/A 0.0 ppb (0) 49.0 ppb (46) 0.14 ppb (2) 37.0 μg/m3 (35) 6.0 μg/m3 (25) 46.0
 
April 5, 2021, 9 p.m. N/A 0.3 ppb (1) 3.3 ppb (4) N/A N/A 0.0 ppb (0) 49.0 ppb (46) 0.15 ppb (2) 34.0 μg/m3 (32) 7.0 μg/m3 (30) 46.0
 
April 5, 2021, 8 p.m. N/A 0.4 ppb (1) 3.4 ppb (4) N/A N/A 0.0 ppb (0) 46.0 ppb (43) 0.15 ppb (2) 36.0 μg/m3 (34) 6.0 μg/m3 (25) 43.0
 
April 5, 2021, 7 p.m. N/A 0.5 ppb (1) 3.6 ppb (4) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.15 ppb (2) 32.0 μg/m3 (30) 3.0 μg/m3 (13) 41.0
 
April 5, 2021, 6 p.m. N/A 0.4 ppb (1) 3.3 ppb (4) N/A N/A 0.0 ppb (0) 41.0 ppb (38) 0.14 ppb (2) 35.0 μg/m3 (33) 4.0 μg/m3 (17) 38.0
 
April 5, 2021, 5 p.m. N/A 0.8 ppb (1) 4.0 ppb (4) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.18 ppb (3) 29.0 μg/m3 (27) 7.0 μg/m3 (30) 34.0
 
April 5, 2021, 4 p.m. N/A 1.0 ppb (1) 4.1 ppb (4) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.21 ppb (3) 33.0 μg/m3 (31) 8.0 μg/m3 (34) 34.0
 
April 5, 2021, 3 p.m. N/A 1.2 ppb (2) 4.5 ppb (5) N/A N/A N/A 28.0 ppb (26) 0.15 ppb (2) 24.0 μg/m3 (23) 6.0 μg/m3 (25) 26.0
 
April 5, 2021, 2 p.m. N/A 1.8 ppb (2) 6.6 ppb (7) N/A N/A 0.0 ppb (0) 25.0 ppb (24) N/A 32.0 μg/m3 (30) 6.0 μg/m3 (25) 30.0
 
April 5, 2021, 1 p.m. N/A 0.6 ppb (1) 5.3 ppb (5) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.19 ppb (3) 28.0 μg/m3 (26) 5.0 μg/m3 (21) 26.0
 
April 5, 2021, noon N/A 0.1 ppb (1) 4.3 ppb (5) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.19 ppb (3) 20.0 μg/m3 (19) 5.0 μg/m3 (21) 26.0
 
April 5, 2021, 11 a.m. N/A 0.0 ppb (0) 3.2 ppb (4) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.17 ppb (3) 21.0 μg/m3 (20) 7.0 μg/m3 (30) 30.0
 
April 5, 2021, 10 a.m. N/A 0.0 ppb (0) 4.1 ppb (4) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.17 ppb (3) 25.0 μg/m3 (24) 6.0 μg/m3 (25) 29.0
 
April 5, 2021, 9 a.m. N/A 0.0 ppb (0) 2.8 ppb (3) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.16 ppb (3) 23.0 μg/m3 (22) 7.0 μg/m3 (30) 32.0
 
April 5, 2021, 8 a.m. N/A 0.0 ppb (0) 2.4 ppb (3) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.16 ppb (3) 19.0 μg/m3 (18) 7.0 μg/m3 (30) 34.0
 
April 5, 2021, 7 a.m. N/A 0.0 ppb (0) 2.4 ppb (3) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.16 ppb (3) 27.0 μg/m3 (25) 5.0 μg/m3 (21) 34.0
 
April 5, 2021, 6 a.m. N/A 0.0 ppb (0) 2.5 ppb (3) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.17 ppb (3) 26.0 μg/m3 (25) 6.0 μg/m3 (25) 35.0
 
April 5, 2021, 5 a.m. N/A 0.0 ppb (0) 2.5 ppb (3) N/A N/A 0.0 ppb (0) 41.0 ppb (38) 0.17 ppb (3) 24.0 μg/m3 (23) 8.0 μg/m3 (34) 38.0
 
April 5, 2021, 4 a.m. N/A 0.0 ppb (0) 2.7 ppb (3) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.17 ppb (3) 32.0 μg/m3 (30) 8.0 μg/m3 (34) 41.0
 
April 5, 2021, 3 a.m. N/A 0.0 ppb (0) 2.8 ppb (3) N/A N/A 0.0 ppb (0) 45.0 ppb (42) 0.17 ppb (3) 34.0 μg/m3 (32) 6.0 μg/m3 (25) 42.0
 
April 5, 2021, 2 a.m. N/A 0.0 ppb (0) 3.7 ppb (4) N/A N/A 0.0 ppb (0) 45.0 ppb (42) 0.17 ppb (3) 40.0 μg/m3 (38) 6.0 μg/m3 (25) 42.0
 
April 5, 2021, 1 a.m. N/A 0.0 ppb (0) 3.5 ppb (4) N/A N/A 0.0 ppb (0) 49.0 ppb (46) 0.18 ppb (3) 42.0 μg/m3 (39) 8.0 μg/m3 (34) 46.0
 
April 5, 2021, midnight N/A 0.0 ppb (0) 3.5 ppb (4) N/A N/A 0.0 ppb (0) 54.0 ppb (50) 0.18 ppb (3) 37.0 μg/m3 (35) 9.0 μg/m3 (38) 50.0
 
April 4, 2021, 11 p.m. N/A 0.1 ppb (1) 3.4 ppb (4) N/A N/A 0.0 ppb (0) 58.0 ppb (61) 0.18 ppb (3) 34.0 μg/m3 (32) 10.0 μg/m3 (42) 61.0
 
April 4, 2021, 10 p.m. N/A 0.1 ppb (1) 3.0 ppb (3) N/A N/A 0.0 ppb (0) 60.0 ppb (68) 0.17 ppb (3) 30.0 μg/m3 (28) 8.0 μg/m3 (34) 68.0
 
April 4, 2021, 9 p.m. N/A 0.1 ppb (1) 2.7 ppb (3) N/A N/A 0.0 ppb (0) 60.0 ppb (68) 0.17 ppb (3) 25.0 μg/m3 (24) 7.0 μg/m3 (30) 68.0
 
April 4, 2021, 8 p.m. N/A 0.2 ppb (1) 3.3 ppb (4) N/A N/A 0.0 ppb (0) 57.0 ppb (58) 0.18 ppb (3) 38.0 μg/m3 (36) 7.0 μg/m3 (30) 58.0
 
April 4, 2021, 7 p.m. N/A 0.2 ppb (1) 3.1 ppb (3) N/A N/A 0.0 ppb (0) 55.0 ppb (51) 0.18 ppb (3) 39.0 μg/m3 (37) 7.0 μg/m3 (30) 51.0
 
April 4, 2021, 6 p.m. N/A 0.2 ppb (1) 3.4 ppb (4) N/A N/A 0.0 ppb (0) 51.0 ppb (48) 0.19 ppb (3) 45.0 μg/m3 (42) 8.0 μg/m3 (34) 48.0
 
April 4, 2021, 5 p.m. N/A 0.6 ppb (1) 5.0 ppb (5) N/A N/A 1.0 ppb (2) 46.0 ppb (43) 0.2 ppb (3) 39.0 μg/m3 (37) 11.0 μg/m3 (46) 46.0
 
April 4, 2021, 4 p.m. N/A 1.3 ppb (2) 6.8 ppb (7) N/A N/A 1.0 ppb (2) 38.0 ppb (36) 0.2 ppb (3) 33.0 μg/m3 (31) 10.0 μg/m3 (42) 42.0
 
April 4, 2021, 3 p.m. N/A 0.7 ppb (1) 4.7 ppb (5) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.2 ppb (3) 34.0 μg/m3 (32) 12.0 μg/m3 (50) 50.0
 
April 4, 2021, 2 p.m. N/A 1.1 ppb (2) 6.5 ppb (7) N/A N/A 1.0 ppb (2) 31.0 ppb (29) 0.22 ppb (3) 36.0 μg/m3 (34) 14.0 μg/m3 (55) 55.0
 
April 4, 2021, 1 p.m. N/A 0.7 ppb (1) 6.6 ppb (7) N/A N/A 1.0 ppb (2) 31.0 ppb (29) 0.22 ppb (3) 37.0 μg/m3 (35) 16.0 μg/m3 (60) 60.0
 
April 4, 2021, noon N/A 0.4 ppb (1) 10.7 ppb (11) N/A N/A 1.0 ppb (2) 29.0 ppb (27) 0.23 ppb (3) 42.0 μg/m3 (39) 16.0 μg/m3 (60) 60.0
 
April 4, 2021, 11 a.m. N/A 0.0 ppb (0) 7.5 ppb (8) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.22 ppb (3) 46.0 μg/m3 (43) 25.0 μg/m3 (79) 79.0
 
April 4, 2021, 10 a.m. N/A 0.0 ppb (0) 7.4 ppb (7) N/A N/A 1.0 ppb (2) 39.0 ppb (37) 0.22 ppb (3) 49.0 μg/m3 (46) 20.0 μg/m3 (68) 68.0
 
April 4, 2021, 9 a.m. N/A 0.0 ppb (0) 9.0 ppb (9) N/A N/A 1.0 ppb (2) 40.0 ppb (38) 0.22 ppb (3) 51.0 μg/m3 (48) 20.0 μg/m3 (68) 68.0
 
April 4, 2021, 8 a.m. N/A 0.0 ppb (0) 8.3 ppb (8) N/A N/A 1.0 ppb (2) 45.0 ppb (42) 0.22 ppb (3) 57.0 μg/m3 (52) 20.0 μg/m3 (68) 68.0
 
April 4, 2021, 7 a.m. N/A 0.0 ppb (0) 6.6 ppb (7) N/A N/A 1.0 ppb (2) 53.0 ppb (50) 0.23 ppb (3) 60.0 μg/m3 (54) 25.0 μg/m3 (79) 79.0
 
April 4, 2021, 6 a.m. N/A 0.8 ppb (1) 16.9 ppb (16) N/A N/A 1.0 ppb (2) 39.0 ppb (37) 0.32 ppb (4) 55.0 μg/m3 (51) 28.0 μg/m3 (85) 85.0
 
April 4, 2021, 5 a.m. N/A 2.9 ppb (3) 30.4 ppb (29) N/A N/A 1.0 ppb (2) 29.0 ppb (27) 0.47 ppb (6) 68.0 μg/m3 (58) 25.0 μg/m3 (79) 79.0
 
April 4, 2021, 4 a.m. N/A 4.8 ppb (5) 46.8 ppb (45) N/A N/A 1.0 ppb (2) 18.0 ppb (17) 0.54 ppb (6) 63.0 μg/m3 (55) 29.0 μg/m3 (87) 87.0
 
April 4, 2021, 3 a.m. N/A 1.5 ppb (2) 43.9 ppb (42) N/A N/A 1.0 ppb (2) 19.0 ppb (18) 0.56 ppb (7) 66.0 μg/m3 (57) 26.0 μg/m3 (81) 81.0
 
April 4, 2021, 2 a.m. N/A 0.1 ppb (1) 25.8 ppb (25) N/A N/A 1.0 ppb (2) 35.0 ppb (33) 0.48 ppb (6) 61.0 μg/m3 (54) 30.0 μg/m3 (89) 89.0
 
April 4, 2021, 1 a.m. N/A 0.0 ppb (0) 14.8 ppb (14) N/A N/A 1.0 ppb (2) 48.0 ppb (45) 0.31 ppb (4) 44.0 μg/m3 (41) 15.0 μg/m3 (58) 58.0
 
April 4, 2021, midnight N/A 0.0 ppb (0) 6.8 ppb (7) N/A N/A 0.0 ppb (0) 56.0 ppb (55) 0.2 ppb (3) 37.0 μg/m3 (35) 11.0 μg/m3 (46) 55.0
 
April 3, 2021, 11 p.m. N/A 0.1 ppb (1) 4.9 ppb (5) N/A N/A 1.0 ppb (2) 60.0 ppb (68) 0.16 ppb (3) 38.0 μg/m3 (36) 11.0 μg/m3 (46) 68.0
 
April 3, 2021, 10 p.m. N/A 0.1 ppb (1) 3.6 ppb (4) N/A N/A 1.0 ppb (2) 61.0 ppb (71) 0.16 ppb (3) 31.0 μg/m3 (29) 11.0 μg/m3 (46) 71.0
 
April 3, 2021, 9 p.m. N/A 0.4 ppb (1) 6.1 ppb (6) N/A N/A 3.0 ppb (5) 62.0 ppb (74) 0.19 ppb (3) 45.0 μg/m3 (42) 15.0 μg/m3 (58) 74.0
 
April 3, 2021, 8 p.m. N/A 0.5 ppb (1) 6.6 ppb (7) N/A N/A 4.0 ppb (6) 62.0 ppb (74) 0.2 ppb (3) 42.0 μg/m3 (39) 17.0 μg/m3 (62) 74.0
 
April 3, 2021, 7 p.m. N/A 0.5 ppb (1) 6.8 ppb (7) N/A N/A 3.0 ppb (5) 60.0 ppb (68) 0.21 ppb (3) 45.0 μg/m3 (42) 18.0 μg/m3 (64) 68.0