AQSQID: 310550019

Site Name: Ncore

Location: Omaha (Field Club), NE

Reporting: True, Located: True

Current AQI: 24.0

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 4, 2020, 1 a.m. N/A 0.1 ppb (0) 2.2 ppb (2) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.15 ppb (2) 11.0 μg/m3 (10) 4.0 μg/m3 (17) 24.0
 
April 4, 2020, midnight N/A 0.2 ppb (0) 2.2 ppb (2) N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.15 ppb (2) 8.0 μg/m3 (7) 2.0 μg/m3 (8) 25.0
 
April 3, 2020, 11 p.m. N/A 0.4 ppb (0) 2.3 ppb (2) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.16 ppb (2) 10.0 μg/m3 (9) 4.0 μg/m3 (17) 25.0
 
April 3, 2020, 10 p.m. N/A 0.9 ppb (1) 3.8 ppb (4) N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.17 ppb (2) 9.0 μg/m3 (8) 6.0 μg/m3 (25) 25.0
 
April 3, 2020, 9 p.m. N/A 1.4 ppb (1) 4.5 ppb (4) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.17 ppb (2) 14.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
April 3, 2020, 8 p.m. N/A 1.2 ppb (1) 3.4 ppb (3) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.16 ppb (2) 10.0 μg/m3 (9) 7.0 μg/m3 (29) 29.0
 
April 3, 2020, 7 p.m. N/A 1.6 ppb (1) 4.3 ppb (4) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.16 ppb (2) 12.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
April 3, 2020, 6 p.m. N/A 1.3 ppb (1) 3.0 ppb (3) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.14 ppb (2) 6.0 μg/m3 (5) 8.0 μg/m3 (33) 33.0
 
April 3, 2020, 5 p.m. N/A 1.8 ppb (2) 3.6 ppb (3) N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.2 ppb (2) 8.0 μg/m3 (7) 6.0 μg/m3 (25) 25.0
 
April 3, 2020, 4 p.m. N/A 1.7 ppb (2) 4.5 ppb (4) N/A N/A 0.0 ppb (0) 24.0 ppb (18) 0.19 ppb (2) 9.0 μg/m3 (8) 5.0 μg/m3 (21) 21.0
 
April 3, 2020, 3 p.m. N/A 2.1 ppb (2) 5.3 ppb (5) N/A N/A 0.0 ppb (0) 23.0 ppb (18) 0.18 ppb (2) 9.0 μg/m3 (8) 6.0 μg/m3 (25) 25.0
 
April 3, 2020, 2 p.m. N/A 2.2 ppb (2) 5.6 ppb (5) N/A N/A 0.0 ppb (0) 22.0 ppb (17) 0.18 ppb (2) 11.0 μg/m3 (10) 6.0 μg/m3 (25) 25.0
 
April 3, 2020, 1 p.m. N/A 1.3 ppb (1) 4.7 ppb (4) N/A N/A N/A 22.0 ppb (17) 0.18 ppb (2) 13.0 μg/m3 (12) 6.0 μg/m3 (25) 25.0
 
April 3, 2020, noon N/A 0.9 ppb (1) 4.0 ppb (4) N/A N/A 0.0 ppb (0) 22.0 ppb (17) N/A 9.0 μg/m3 (8) 6.0 μg/m3 (25) 25.0
 
April 3, 2020, 11 a.m. N/A 1.0 ppb (1) 4.2 ppb (4) N/A N/A 0.0 ppb (0) 21.0 ppb (16) 0.18 ppb (2) 8.0 μg/m3 (7) 3.0 μg/m3 (12) 16.0
 
April 3, 2020, 10 a.m. N/A 0.6 ppb (1) 3.0 ppb (3) N/A N/A 0.0 ppb (0) 22.0 ppb (17) 0.17 ppb (2) 12.0 μg/m3 (11) 0.0 μg/m3 (0) 17.0
 
April 3, 2020, 9 a.m. N/A 0.8 ppb (1) 3.1 ppb (3) N/A N/A 0.0 ppb (0) 22.0 ppb (17) 0.17 ppb (2) 6.0 μg/m3 (5) 2.0 μg/m3 (8) 17.0
 
April 3, 2020, 8 a.m. N/A 0.7 ppb (1) 2.7 ppb (3) N/A N/A 0.0 ppb (0) 21.0 ppb (16) 0.17 ppb (2) 3.0 μg/m3 (3) 2.0 μg/m3 (8) 16.0
 
April 3, 2020, 7 a.m. N/A 0.6 ppb (1) 2.2 ppb (2) N/A N/A 0.0 ppb (0) 21.0 ppb (16) 0.17 ppb (2) 4.0 μg/m3 (4) 1.0 μg/m3 (4) 16.0
 
April 3, 2020, 6 a.m. N/A 0.6 ppb (1) 2.0 ppb (2) N/A N/A 0.0 ppb (0) 22.0 ppb (17) 0.18 ppb (2) 5.0 μg/m3 (5) -1.0 μg/m3 (0) 17.0
 
April 3, 2020, 5 a.m. N/A 0.8 ppb (1) 2.6 ppb (2) N/A N/A 0.0 ppb (0) 20.0 ppb (15) 0.18 ppb (2) 1.0 μg/m3 (1) -4.0 μg/m3 (0) 15.0
 
April 3, 2020, 4 a.m. N/A 0.6 ppb (1) 2.1 ppb (2) N/A N/A 0.0 ppb (0) 19.0 ppb (15) 0.19 ppb (2) 3.0 μg/m3 (3) N/A 15.0
 
April 3, 2020, 3 a.m. N/A 0.5 ppb (0) 1.6 ppb (1) N/A N/A 0.0 ppb (0) 17.0 ppb (13) 0.19 ppb (2) 4.0 μg/m3 (4) N/A 13.0
 
April 3, 2020, 2 a.m. N/A 0.6 ppb (1) 2.1 ppb (2) N/A N/A 0.0 ppb (0) 15.0 ppb (12) 0.19 ppb (2) 6.0 μg/m3 (5) N/A 12.0
 
April 3, 2020, 1 a.m. N/A 1.0 ppb (1) 3.2 ppb (3) N/A N/A 0.0 ppb (0) 13.0 ppb (10) 0.19 ppb (2) 8.0 μg/m3 (7) -3.0 μg/m3 (0) 10.0
 
April 3, 2020, midnight N/A 1.0 ppb (1) 3.1 ppb (3) N/A N/A 0.0 ppb (0) 13.0 ppb (10) 0.2 ppb (2) 0.0 μg/m3 (0) -1.0 μg/m3 (0) 10.0
 
April 2, 2020, 11 p.m. N/A 0.9 ppb (1) 3.0 ppb (3) N/A N/A 0.0 ppb (0) 12.0 ppb (9) 0.2 ppb (2) 7.0 μg/m3 (6) -1.0 μg/m3 (0) 9.0
 
April 2, 2020, 10 p.m. N/A 1.2 ppb (1) 3.4 ppb (3) N/A N/A 0.0 ppb (0) 12.0 ppb (9) 0.21 ppb (2) 14.0 μg/m3 (13) 0.0 μg/m3 (0) 13.0
 
April 2, 2020, 9 p.m. N/A 1.5 ppb (1) 4.1 ppb (4) N/A N/A 0.0 ppb (0) 12.0 ppb (9) 0.21 ppb (2) 23.0 μg/m3 (21) 5.0 μg/m3 (21) 21.0
 
April 2, 2020, 8 p.m. N/A 1.5 ppb (1) 4.3 ppb (4) N/A N/A 0.0 ppb (0) 13.0 ppb (10) 0.21 ppb (2) 26.0 μg/m3 (24) 9.0 μg/m3 (38) 38.0
 
April 2, 2020, 7 p.m. N/A 2.0 ppb (2) 5.4 ppb (5) N/A N/A 0.0 ppb (0) 12.0 ppb (9) 0.21 ppb (2) 33.0 μg/m3 (30) 9.0 μg/m3 (38) 38.0
 
April 2, 2020, 6 p.m. N/A 1.8 ppb (2) 5.0 ppb (5) N/A N/A 0.0 ppb (0) 11.0 ppb (8) 0.21 ppb (2) 27.0 μg/m3 (25) 9.0 μg/m3 (38) 38.0
 
April 2, 2020, 5 p.m. N/A 1.1 ppb (1) 6.1 ppb (6) N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.22 ppb (2) 30.0 μg/m3 (27) 10.0 μg/m3 (42) 42.0
 
April 2, 2020, 4 p.m. N/A 0.7 ppb (1) 4.9 ppb (5) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.22 ppb (2) 29.0 μg/m3 (26) 8.0 μg/m3 (33) 33.0
 
April 2, 2020, 3 p.m. N/A 1.0 ppb (1) 5.8 ppb (5) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.23 ppb (3) 30.0 μg/m3 (27) 8.0 μg/m3 (33) 33.0
 
April 2, 2020, 2 p.m. N/A 1.9 ppb (2) 10.1 ppb (9) N/A N/A 0.0 ppb (0) 24.0 ppb (18) 0.25 ppb (3) 31.0 μg/m3 (28) 13.0 μg/m3 (52) 52.0
 
April 2, 2020, 1 p.m. N/A 1.8 ppb (2) 10.4 ppb (10) N/A N/A 0.0 ppb (0) 21.0 ppb (16) 0.25 ppb (3) 27.0 μg/m3 (25) 12.0 μg/m3 (50) 50.0
 
April 2, 2020, noon N/A 0.8 ppb (1) 10.3 ppb (10) N/A N/A 0.0 ppb (0) 21.0 ppb (16) 0.23 ppb (3) N/A 13.0 μg/m3 (52) 52.0
 
April 2, 2020, 11 a.m. N/A 0.8 ppb (1) 10.2 ppb (9) N/A N/A N/A 24.0 ppb (18) 0.22 ppb (2) 22.0 μg/m3 (20) 12.0 μg/m3 (50) 50.0
 
April 2, 2020, 10 a.m. N/A 1.0 ppb (1) 8.4 ppb (8) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.21 ppb (2) 22.0 μg/m3 (20) 14.0 μg/m3 (54) 54.0
 
April 2, 2020, 9 a.m. N/A 0.6 ppb (1) 6.5 ppb (6) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.21 ppb (2) 22.0 μg/m3 (20) 14.0 μg/m3 (54) 54.0
 
April 2, 2020, 8 a.m. N/A 0.8 ppb (1) 6.8 ppb (6) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.2 ppb (2) 24.0 μg/m3 (22) 13.0 μg/m3 (52) 52.0
 
April 2, 2020, 7 a.m. N/A 1.3 ppb (1) 6.5 ppb (6) N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.2 ppb (2) 27.0 μg/m3 (25) 11.0 μg/m3 (46) 46.0
 
April 2, 2020, 6 a.m. N/A 1.1 ppb (1) 5.9 ppb (5) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.2 ppb (2) 25.0 μg/m3 (23) 11.0 μg/m3 (46) 46.0
 
April 2, 2020, 5 a.m. N/A 0.9 ppb (1) 6.4 ppb (6) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.2 ppb (2) 22.0 μg/m3 (20) 9.0 μg/m3 (38) 38.0
 
April 2, 2020, 4 a.m. N/A 0.5 ppb (0) 5.8 ppb (5) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.2 ppb (2) 26.0 μg/m3 (24) 8.0 μg/m3 (33) 33.0
 
April 2, 2020, 3 a.m. N/A 0.7 ppb (1) 7.4 ppb (7) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.2 ppb (2) 31.0 μg/m3 (28) 8.0 μg/m3 (33) 33.0
 
April 2, 2020, 2 a.m. N/A 0.8 ppb (1) 7.0 ppb (6) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.2 ppb (2) 27.0 μg/m3 (25) 10.0 μg/m3 (42) 42.0
 
April 2, 2020, 1 a.m. N/A 0.8 ppb (1) 7.7 ppb (7) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.2 ppb (2) 37.0 μg/m3 (34) 8.0 μg/m3 (33) 34.0
 
April 2, 2020, midnight N/A 0.7 ppb (1) 5.0 ppb (5) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.19 ppb (2) 52.0 μg/m3 (47) 9.0 μg/m3 (38) 47.0
 
April 1, 2020, 11 p.m. N/A 1.0 ppb (1) 5.5 ppb (5) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.2 ppb (2) 55.0 μg/m3 (50) 6.0 μg/m3 (25) 50.0
 
April 1, 2020, 10 p.m. N/A 1.0 ppb (1) 5.0 ppb (5) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.2 ppb (2) 49.0 μg/m3 (45) 8.0 μg/m3 (33) 45.0
 
April 1, 2020, 9 p.m. N/A 1.6 ppb (1) 6.2 ppb (6) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.21 ppb (2) 46.0 μg/m3 (42) 10.0 μg/m3 (42) 42.0
 
April 1, 2020, 8 p.m. N/A 1.0 ppb (1) 4.7 ppb (4) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.21 ppb (2) 51.0 μg/m3 (46) 6.0 μg/m3 (25) 46.0
 
April 1, 2020, 7 p.m. N/A 1.0 ppb (1) 4.6 ppb (4) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.21 ppb (2) 51.0 μg/m3 (46) 4.0 μg/m3 (17) 46.0
 
April 1, 2020, 6 p.m. N/A 1.3 ppb (1) 5.1 ppb (5) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.22 ppb (2) 42.0 μg/m3 (38) 10.0 μg/m3 (42) 42.0
 
April 1, 2020, 5 p.m. N/A 1.5 ppb (1) 6.0 ppb (6) N/A N/A 0.0 ppb (0) N/A 0.22 ppb (2) 42.0 μg/m3 (38) 10.0 μg/m3 (42) 42.0
 
April 1, 2020, 4 p.m. N/A 1.3 ppb (1) 5.7 ppb (5) N/A N/A 0.0 ppb (0) N/A 0.2 ppb (2) 37.0 μg/m3 (34) 11.0 μg/m3 (46) 46.0
 
April 1, 2020, 3 p.m. N/A 3.3 ppb (3) 9.9 ppb (9) N/A N/A 0.0 ppb (0) N/A 0.23 ppb (3) 39.0 μg/m3 (35) 14.0 μg/m3 (54) 54.0
 
April 1, 2020, 2 p.m. N/A 4.0 ppb (4) 11.5 ppb (11) N/A N/A 0.0 ppb (0) 23.0 ppb (18) 0.24 ppb (3) 37.0 μg/m3 (34) 14.0 μg/m3 (54) 54.0
 
April 1, 2020, 1 p.m. N/A 4.1 ppb (4) 14.2 ppb (13) N/A N/A 0.0 ppb (0) 20.0 ppb (15) 0.25 ppb (3) 36.0 μg/m3 (33) 16.0 μg/m3 (59) 59.0
 
April 1, 2020, noon N/A 2.9 ppb (3) 14.5 ppb (13) N/A N/A 0.0 ppb (0) 19.0 ppb (15) 0.24 ppb (3) 34.0 μg/m3 (31) 13.0 μg/m3 (52) 52.0
 
April 1, 2020, 11 a.m. N/A 1.5 ppb (1) 13.3 ppb (12) N/A N/A 0.0 ppb (0) 18.0 ppb (14) 0.23 ppb (3) 27.0 μg/m3 (25) 14.0 μg/m3 (54) 54.0
 
April 1, 2020, 10 a.m. N/A 0.7 ppb (1) 7.8 ppb (7) N/A N/A 0.0 ppb (0) 24.0 ppb (18) 0.23 ppb (3) 28.0 μg/m3 (25) 14.0 μg/m3 (54) 54.0
 
April 1, 2020, 9 a.m. N/A 0.7 ppb (1) 6.0 ppb (6) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.23 ppb (3) 22.0 μg/m3 (20) 13.0 μg/m3 (52) 52.0
 
April 1, 2020, 8 a.m. N/A 0.4 ppb (0) 5.5 ppb (5) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.23 ppb (3) 26.0 μg/m3 (24) 14.0 μg/m3 (54) 54.0
 
April 1, 2020, 7 a.m. N/A 0.3 ppb (0) 5.4 ppb (5) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.24 ppb (3) 23.0 μg/m3 (21) 16.0 μg/m3 (59) 59.0
 
April 1, 2020, 6 a.m. N/A 0.1 ppb (0) 5.8 ppb (5) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.25 ppb (3) 32.0 μg/m3 (29) 16.0 μg/m3 (59) 59.0
 
April 1, 2020, 5 a.m. N/A 0.3 ppb (0) 8.5 ppb (8) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.26 ppb (3) 37.0 μg/m3 (34) 19.0 μg/m3 (65) 65.0
 
April 1, 2020, 4 a.m. N/A 0.5 ppb (0) 10.2 ppb (9) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.27 ppb (3) 52.0 μg/m3 (47) 22.0 μg/m3 (71) 71.0
 
April 1, 2020, 3 a.m. N/A 0.2 ppb (0) 9.8 ppb (9) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.28 ppb (3) 36.0 μg/m3 (33) 24.0 μg/m3 (76) 76.0
 
April 1, 2020, 2 a.m. N/A 0.9 ppb (1) 17.2 ppb (16) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.27 ppb (3) 33.0 μg/m3 (30) 17.0 μg/m3 (61) 61.0
 
April 1, 2020, 1 a.m. N/A 1.4 ppb (1) 20.1 ppb (19) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.25 ppb (3) 38.0 μg/m3 (35) 20.0 μg/m3 (67) 67.0
 
April 1, 2020, midnight N/A 1.1 ppb (1) 14.0 ppb (13) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.23 ppb (3) 33.0 μg/m3 (30) 15.0 μg/m3 (56) 56.0
 
March 31, 2020, 11 p.m. N/A 1.0 ppb (1) 7.3 ppb (7) N/A N/A 0.0 ppb (0) 43.0 ppb (33) 0.22 ppb (2) 34.0 μg/m3 (31) 17.0 μg/m3 (61) 61.0
 
March 31, 2020, 10 p.m. N/A 0.5 ppb (0) 5.1 ppb (5) N/A N/A 0.0 ppb (0) 45.0 ppb (35) 0.22 ppb (2) 39.0 μg/m3 (35) 16.0 μg/m3 (59) 59.0
 
March 31, 2020, 9 p.m. N/A 0.6 ppb (1) 5.9 ppb (5) N/A N/A 0.0 ppb (0) 44.0 ppb (34) 0.22 ppb (2) 33.0 μg/m3 (30) 14.0 μg/m3 (54) 54.0
 
March 31, 2020, 8 p.m. N/A 1.4 ppb (1) 7.7 ppb (7) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.21 ppb (2) 33.0 μg/m3 (30) 11.0 μg/m3 (46) 46.0
 
March 31, 2020, 7 p.m. N/A 1.4 ppb (1) 7.3 ppb (7) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.2 ppb (2) 38.0 μg/m3 (35) 11.0 μg/m3 (46) 46.0
 
March 31, 2020, 6 p.m. N/A 0.5 ppb (0) 4.8 ppb (4) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.19 ppb (2) 33.0 μg/m3 (30) 9.0 μg/m3 (38) 38.0
 
March 31, 2020, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.24 ppb (3) 29.0 μg/m3 (26) 10.0 μg/m3 (42) 42.0
 
March 31, 2020, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.25 ppb (3) 24.0 μg/m3 (22) 9.0 μg/m3 (38) 38.0
 
March 31, 2020, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.27 ppb (3) 29.0 μg/m3 (26) 10.0 μg/m3 (42) 42.0
 
March 31, 2020, 2 p.m. N/A 3.4 ppb (3) 11.6 ppb (11) N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.3 ppb (3) 29.0 μg/m3 (26) 11.0 μg/m3 (46) 46.0
 
March 31, 2020, 1 p.m. N/A 4.2 ppb (4) 20.3 ppb (19) N/A N/A N/A 15.0 ppb (12) 0.31 ppb (3) 26.0 μg/m3 (24) 10.0 μg/m3 (42) 42.0
 
March 31, 2020, noon N/A 1.2 ppb (1) 19.8 ppb (18) N/A N/A 0.0 ppb (0) 14.0 ppb (11) N/A 33.0 μg/m3 (30) 6.0 μg/m3 (25) 30.0
 
March 31, 2020, 11 a.m. N/A 0.0 ppb (0) 11.0 ppb (10) N/A N/A 0.0 ppb (0) 21.0 ppb (16) 0.26 ppb (3) 18.0 μg/m3 (16) 5.0 μg/m3 (21) 21.0
 
March 31, 2020, 10 a.m. N/A 0.0 ppb (0) 10.9 ppb (10) N/A N/A 0.0 ppb (0) 22.0 ppb (17) 0.25 ppb (3) 20.0 μg/m3 (18) 7.0 μg/m3 (29) 29.0
 
March 31, 2020, 9 a.m. N/A 0.0 ppb (0) 8.9 ppb (8) N/A N/A 0.0 ppb (0) 23.0 ppb (18) 0.25 ppb (3) 20.0 μg/m3 (18) 9.0 μg/m3 (38) 38.0
 
March 31, 2020, 8 a.m. N/A 0.1 ppb (0) 6.7 ppb (6) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.24 ppb (3) 15.0 μg/m3 (14) 6.0 μg/m3 (25) 25.0
 
March 31, 2020, 7 a.m. N/A 0.2 ppb (0) 4.9 ppb (5) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.23 ppb (3) 20.0 μg/m3 (18) 7.0 μg/m3 (29) 29.0
 
March 31, 2020, 6 a.m. N/A 0.0 ppb (0) 5.4 ppb (5) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.22 ppb (2) 24.0 μg/m3 (22) 5.0 μg/m3 (21) 24.0
 
March 31, 2020, 5 a.m. N/A 0.0 ppb (0) 3.6 ppb (3) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.22 ppb (2) 24.0 μg/m3 (22) 4.0 μg/m3 (17) 26.0
 
March 31, 2020, 4 a.m. N/A 0.0 ppb (0) 2.7 ppb (3) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.23 ppb (3) 31.0 μg/m3 (28) 2.0 μg/m3 (8) 28.0
 
March 31, 2020, 3 a.m. N/A 0.0 ppb (0) 2.3 ppb (2) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.23 ppb (3) 44.0 μg/m3 (40) 3.0 μg/m3 (12) 40.0
 
March 31, 2020, 2 a.m. N/A 0.0 ppb (0) 3.3 ppb (3) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.23 ppb (3) 29.0 μg/m3 (26) 3.0 μg/m3 (12) 28.0
 
March 31, 2020, 1 a.m. N/A 0.0 ppb (0) 3.3 ppb (3) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.23 ppb (3) 22.0 μg/m3 (20) 5.0 μg/m3 (21) 28.0
 
March 31, 2020, midnight N/A 0.1 ppb (0) 4.1 ppb (4) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.23 ppb (3) 15.0 μg/m3 (14) 5.0 μg/m3 (21) 28.0
 
March 30, 2020, 11 p.m. N/A 0.2 ppb (0) 1.6 ppb (1) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.23 ppb (3) 17.0 μg/m3 (15) 5.0 μg/m3 (21) 30.0
 
March 30, 2020, 10 p.m. N/A 0.5 ppb (0) 2.9 ppb (3) N/A N/A 1.0 ppb (1) 40.0 ppb (31) 0.24 ppb (3) 18.0 μg/m3 (16) 6.0 μg/m3 (25) 31.0
 
March 30, 2020, 9 p.m. N/A 0.3 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.24 ppb (3) 13.0 μg/m3 (12) 4.0 μg/m3 (17) 31.0
 
March 30, 2020, 8 p.m. N/A 0.7 ppb (1) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.25 ppb (3) 15.0 μg/m3 (14) 6.0 μg/m3 (25) 29.0
 
March 30, 2020, 7 p.m. N/A 0.7 ppb (1) 1.6 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.24 ppb (3) 19.0 μg/m3 (17) 8.0 μg/m3 (33) 33.0
 
March 30, 2020, 6 p.m. N/A 3.6 ppb (3) 9.3 ppb (9) N/A N/A 2.0 ppb (3) 30.0 ppb (23) 0.25 ppb (3) 15.0 μg/m3 (14) 9.0 μg/m3 (38) 38.0
 
March 30, 2020, 5 p.m. N/A 6.2 ppb (6) 15.3 ppb (14) N/A N/A 2.0 ppb (3) 26.0 ppb (20) 0.27 ppb (3) 17.0 μg/m3 (15) 12.0 μg/m3 (50) 50.0
 
March 30, 2020, 4 p.m. N/A 3.0 ppb (3) 7.1 ppb (7) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.34 ppb (4) 21.0 μg/m3 (19) 6.0 μg/m3 (25) 25.0
 
March 30, 2020, 3 p.m. N/A 5.8 ppb (5) 16.3 ppb (15) N/A N/A 0.0 ppb (0) 22.0 ppb (17) 0.4 ppb (4) 17.0 μg/m3 (15) 7.0 μg/m3 (29) 29.0
 
March 30, 2020, 2 p.m. N/A 12.0 ppb (11) 30.6 ppb (28) N/A N/A 0.0 ppb (0) 15.0 ppb (12) 0.5 ppb (6) 24.0 μg/m3 (22) 10.0 μg/m3 (42) 42.0
 
March 30, 2020, 1 p.m. N/A 47.5 ppb (44) 75.2 ppb (73) N/A N/A 0.0 ppb (0) 3.0 ppb (2) 0.56 ppb (6) 48.0 μg/m3 (44) 14.0 μg/m3 (54) 73.0
 
March 30, 2020, noon N/A 17.6 ppb (16) 52.8 ppb (49) N/A N/A 0.0 ppb (0) 2.0 ppb (2) 0.43 ppb (5) 26.0 μg/m3 (24) 6.0 μg/m3 (25) 49.0
 
March 30, 2020, 11 a.m. N/A 1.8 ppb (2) 23.6 ppb (22) N/A N/A 0.0 ppb (0) 14.0 ppb (11) N/A 12.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
March 30, 2020, 10 a.m. N/A 0.2 ppb (0) 15.5 ppb (14) N/A N/A 0.0 ppb (0) 19.0 ppb (15) 0.24 ppb (3) 3.0 μg/m3 (3) 5.0 μg/m3 (21) 21.0
 
March 30, 2020, 9 a.m. N/A 4.7 ppb (4) 35.3 ppb (33) N/A N/A 0.0 ppb (0) 3.0 ppb (2) 0.3 ppb (3) 15.0 μg/m3 (14) 6.0 μg/m3 (25) 33.0
 
March 30, 2020, 8 a.m. N/A 0.9 ppb (1) 25.0 ppb (23) N/A N/A 0.0 ppb (0) 13.0 ppb (10) 0.27 ppb (3) 9.0 μg/m3 (8) 2.0 μg/m3 (8) 23.0
 
March 30, 2020, 7 a.m. N/A 0.2 ppb (0) 19.6 ppb (18) N/A N/A 0.0 ppb (0) 18.0 ppb (14) 0.22 ppb (2) 7.0 μg/m3 (6) 1.0 μg/m3 (4) 18.0
 
March 30, 2020, 6 a.m. N/A 0.2 ppb (0) 8.5 ppb (8) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.24 ppb (3) 11.0 μg/m3 (10) 1.0 μg/m3 (4) 21.0
 
March 30, 2020, 5 a.m. N/A 0.0 ppb (0) 8.3 ppb (8) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.25 ppb (3) 11.0 μg/m3 (10) 0.0 μg/m3 (0) 22.0
 
March 30, 2020, 4 a.m. N/A 0.0 ppb (0) 6.8 ppb (6) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.24 ppb (3) 10.0 μg/m3 (9) 0.0 μg/m3 (0) 22.0
 
March 30, 2020, 3 a.m. N/A 0.0 ppb (0) 6.2 ppb (6) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.22 ppb (2) 12.0 μg/m3 (11) -1.0 μg/m3 (0) 23.0
 
March 30, 2020, 2 a.m. N/A 0.0 ppb (0) 2.7 ppb (3) N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.21 ppb (2) 7.0 μg/m3 (6) 2.0 μg/m3 (8) 25.0
 
March 30, 2020, 1 a.m. N/A 0.0 ppb (0) 1.8 ppb (2) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.2 ppb (2) 7.0 μg/m3 (6) 5.0 μg/m3 (21) 26.0
 
March 30, 2020, midnight N/A 0.1 ppb (0) 0.6 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.18 ppb (2) 16.0 μg/m3 (15) 4.0 μg/m3 (17) 28.0
 
March 29, 2020, 11 p.m. N/A 0.2 ppb (0) -0.1 ppb (0) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.18 ppb (2) 8.0 μg/m3 (7) 4.0 μg/m3 (17) 29.0
 
March 29, 2020, 10 p.m. N/A 0.2 ppb (0) -0.6 ppb (0) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.18 ppb (2) 8.0 μg/m3 (7) 2.0 μg/m3 (8) 30.0
 
March 29, 2020, 9 p.m. N/A 0.2 ppb (0) -0.6 ppb (0) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.18 ppb (2) 5.0 μg/m3 (5) 2.0 μg/m3 (8) 31.0
 
March 29, 2020, 8 p.m. N/A 0.2 ppb (0) -0.6 ppb (0) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.17 ppb (2) 6.0 μg/m3 (5) 2.0 μg/m3 (8) 31.0
 
March 29, 2020, 7 p.m. N/A 0.2 ppb (0) -0.7 ppb (0) N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.17 ppb (2) 7.0 μg/m3 (6) 2.0 μg/m3 (8) 32.0
 
March 29, 2020, 6 p.m. N/A 0.2 ppb (0) -0.8 ppb (0) N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.16 ppb (2) 7.0 μg/m3 (6) 3.0 μg/m3 (12) 32.0
 
March 29, 2020, 5 p.m. N/A 0.3 ppb (0) -0.8 ppb (0) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.18 ppb (2) 5.0 μg/m3 (5) 5.0 μg/m3 (21) 29.0
 
March 29, 2020, 4 p.m. N/A 0.3 ppb (0) -0.8 ppb (0) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.18 ppb (2) 6.0 μg/m3 (5) 4.0 μg/m3 (17) 28.0
 
March 29, 2020, 3 p.m. N/A 0.4 ppb (0) -0.7 ppb (0) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.17 ppb (2) 3.0 μg/m3 (3) 3.0 μg/m3 (12) 27.0
 
March 29, 2020, 2 p.m. N/A 0.4 ppb (0) -0.4 ppb (0) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.17 ppb (2) 5.0 μg/m3 (5) 1.0 μg/m3 (4) 25.0
 
March 29, 2020, 1 p.m. N/A 0.4 ppb (0) -0.1 ppb (0) N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.17 ppb (2) 5.0 μg/m3 (5) 2.0 μg/m3 (8) 25.0
 
March 29, 2020, noon N/A 0.2 ppb (0) 0.2 ppb (0) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.17 ppb (2) 7.0 μg/m3 (6) 2.0 μg/m3 (8) 25.0
 
March 29, 2020, 11 a.m. N/A 0.1 ppb (0) -0.5 ppb (0) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.17 ppb (2) 5.0 μg/m3 (5) 3.0 μg/m3 (12) 26.0
 
March 29, 2020, 10 a.m. N/A 0.1 ppb (0) -0.7 ppb (0) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.18 ppb (2) 9.0 μg/m3 (8) 2.0 μg/m3 (8) 25.0
 
March 29, 2020, 9 a.m. N/A 0.1 ppb (0) -0.5 ppb (0) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.18 ppb (2) 9.0 μg/m3 (8) 1.0 μg/m3 (4) 24.0
 
March 29, 2020, 8 a.m. N/A 0.1 ppb (0) -0.2 ppb (0) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.19 ppb (2) 5.0 μg/m3 (5) 2.0 μg/m3 (8) 24.0
 
March 29, 2020, 7 a.m. N/A 0.1 ppb (0) -0.8 ppb (0) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.19 ppb (2) 5.0 μg/m3 (5) 3.0 μg/m3 (12) 27.0
 
March 29, 2020, 6 a.m. N/A 0.1 ppb (0) -1.0 ppb (0) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.19 ppb (2) 3.0 μg/m3 (3) 4.0 μg/m3 (17) 26.0
 
March 29, 2020, 5 a.m. N/A 0.1 ppb (0) -1.2 ppb (0) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.19 ppb (2) 1.0 μg/m3 (1) 1.0 μg/m3 (4) 25.0
 
March 29, 2020, 4 a.m. N/A 0.1 ppb (0) -1.3 ppb (0) N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.19 ppb (2) 1.0 μg/m3 (1) 1.0 μg/m3 (4) 25.0
 
March 29, 2020, 3 a.m. N/A 0.1 ppb (0) -1.3 ppb (0) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.2 ppb (2) 2.0 μg/m3 (2) 1.0 μg/m3 (4) 24.0
 
March 29, 2020, 2 a.m. N/A 0.1 ppb (0) -1.2 ppb (0) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.2 ppb (2) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 22.0
 
March 29, 2020, 1 a.m. N/A 0.1 ppb (0) -0.7 ppb (0) N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.21 ppb (2) 1.0 μg/m3 (1) -1.0 μg/m3 (0) 20.0
 
March 29, 2020, midnight N/A 0.2 ppb (0) -0.5 ppb (0) N/A N/A 0.0 ppb (0) 22.0 ppb (17) 0.22 ppb (2) 2.0 μg/m3 (2) -2.0 μg/m3 (0) 17.0
 
March 28, 2020, 11 p.m. N/A 0.3 ppb (0) -0.2 ppb (0) N/A N/A 0.0 ppb (0) 16.0 ppb (12) 0.22 ppb (2) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 12.0
 
March 28, 2020, 10 p.m. N/A 0.6 ppb (1) 0.0 ppb (0) N/A N/A 0.0 ppb (0) 13.0 ppb (10) 0.22 ppb (2) 4.0 μg/m3 (4) 2.0 μg/m3 (8) 10.0
 
March 28, 2020, 9 p.m. N/A 1.2 ppb (1) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 15.0 ppb (12) 0.22 ppb (2) 9.0 μg/m3 (8) 4.0 μg/m3 (17) 17.0
 
March 28, 2020, 8 p.m. N/A 0.6 ppb (1) 1.6 ppb (1) N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.22 ppb (2) 10.0 μg/m3 (9) 5.0 μg/m3 (21) 21.0
 
March 28, 2020, 7 p.m. N/A 0.9 ppb (1) 2.1 ppb (2) N/A N/A 0.0 ppb (0) 10.0 ppb (8) 0.23 ppb (3) 10.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
March 28, 2020, 6 p.m. N/A 2.5 ppb (2) 3.7 ppb (3) N/A N/A 0.0 ppb (0) 5.0 ppb (4) 0.23 ppb (3) 5.0 μg/m3 (5) 2.0 μg/m3 (8) 8.0
 
March 28, 2020, 5 p.m. N/A 1.2 ppb (1) 2.2 ppb (2) N/A N/A 0.0 ppb (0) 5.0 ppb (4) 0.25 ppb (3) 5.0 μg/m3 (5) 2.0 μg/m3 (8) 8.0
 
March 28, 2020, 4 p.m. N/A 1.1 ppb (1) 3.3 ppb (3) N/A N/A 0.0 ppb (0) 5.0 ppb (4) 0.24 ppb (3) 7.0 μg/m3 (6) 3.0 μg/m3 (12) 12.0
 
March 28, 2020, 3 p.m. N/A 0.9 ppb (1) 3.2 ppb (3) N/A N/A 0.0 ppb (0) 6.0 ppb (5) 0.24 ppb (3) 4.0 μg/m3 (4) 5.0 μg/m3 (21) 21.0
 
March 28, 2020, 2 p.m. N/A 0.7 ppb (1) 3.4 ppb (3) N/A N/A 0.0 ppb (0) 5.0 ppb (4) 0.24 ppb (3) 7.0 μg/m3 (6) 6.0 μg/m3 (25) 25.0
 
March 28, 2020, 1 p.m. N/A 0.6 ppb (1) 2.9 ppb (3) N/A N/A N/A 5.0 ppb (4) 0.24 ppb (3) 5.0 μg/m3 (5) 5.0 μg/m3 (21) 21.0
 
March 28, 2020, noon N/A 0.3 ppb (0) 2.9 ppb (3) N/A N/A 0.0 ppb (0) 5.0 ppb (4) N/A 6.0 μg/m3 (5) 3.0 μg/m3 (12) 12.0
 
March 28, 2020, 11 a.m. N/A 0.2 ppb (0) 2.6 ppb (2) N/A N/A 0.0 ppb (0) 6.0 ppb (5) 0.24 ppb (3) 8.0 μg/m3 (7) 5.0 μg/m3 (21) 21.0
 
March 28, 2020, 10 a.m. N/A 0.1 ppb (0) 2.9 ppb (3) N/A N/A 0.0 ppb (0) 7.0 ppb (5) 0.25 ppb (3) 4.0 μg/m3 (4) 7.0 μg/m3 (29) 29.0
 
March 28, 2020, 9 a.m. N/A 0.1 ppb (0) 2.6 ppb (2) N/A N/A 0.0 ppb (0) 8.0 ppb (6) 0.25 ppb (3) 5.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
March 28, 2020, 8 a.m. N/A 0.1 ppb (0) 3.6 ppb (3) N/A N/A 0.0 ppb (0) 7.0 ppb (5) 0.26 ppb (3) 8.0 μg/m3 (7) 6.0 μg/m3 (25) 25.0
 
March 28, 2020, 7 a.m. N/A 0.4 ppb (0) 4.6 ppb (4) N/A N/A 0.0 ppb (0) 7.0 ppb (5) 0.27 ppb (3) 7.0 μg/m3 (6) 7.0 μg/m3 (29) 29.0
 
March 28, 2020, 6 a.m. N/A 0.3 ppb (0) 4.0 ppb (4) N/A N/A 0.0 ppb (0) 7.0 ppb (5) 0.28 ppb (3) 11.0 μg/m3 (10) 12.0 μg/m3 (50) 50.0
 
March 28, 2020, 5 a.m. N/A 0.2 ppb (0) 7.2 ppb (7) N/A N/A 0.0 ppb (0) 5.0 ppb (4) 0.28 ppb (3) 13.0 μg/m3 (12) 9.0 μg/m3 (38) 38.0
 
March 28, 2020, 4 a.m. N/A 0.3 ppb (0) 7.0 ppb (6) N/A N/A 0.0 ppb (0) 6.0 ppb (5) 0.27 ppb (3) 16.0 μg/m3 (15) 8.0 μg/m3 (33) 33.0
 
March 28, 2020, 3 a.m. N/A 0.2 ppb (0) 6.5 ppb (6) N/A N/A 0.0 ppb (0) 7.0 ppb (5) 0.26 ppb (3) 13.0 μg/m3 (12) 7.0 μg/m3 (29) 29.0
 
March 28, 2020, 2 a.m. N/A 0.1 ppb (0) 4.5 ppb (4) N/A N/A 0.0 ppb (0) 10.0 ppb (8) 0.25 ppb (3) 14.0 μg/m3 (13) 7.0 μg/m3 (29) 29.0