AQSQID: 260810020

Site Name: Grand Rapids

Location: Grand Rapids (Belknap Lookout), MI

Reporting: True, Located: True

Current AQI: 27.0

Grand Rapids (Belknap Lookout) MI, US: 42.984699, -85.671097

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Feb. 13, 2020, 10 p.m. N/A N/A 7.0 ppb (6) N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.3 ppb (3) N/A 6.3 μg/m3 (26) 26.0
 
Feb. 13, 2020, 9 p.m. N/A N/A 8.1 ppb (8) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.32 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Feb. 13, 2020, 8 p.m. N/A N/A 7.1 ppb (7) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.32 ppb (4) N/A N/A 24.0
 
Feb. 13, 2020, 7 p.m. N/A N/A 7.4 ppb (7) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.3 ppb (3) N/A N/A 23.0
 
Feb. 13, 2020, 6 p.m. N/A N/A 7.7 ppb (7) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.28 ppb (3) N/A N/A 24.0
 
Feb. 13, 2020, 5 p.m. N/A N/A 8.3 ppb (8) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.29 ppb (3) N/A 29.5 μg/m3 (87) 87.0
 
Feb. 13, 2020, 4 p.m. N/A N/A 11.9 ppb (11) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.28 ppb (3) N/A 5.2 μg/m3 (22) 22.0
 
Feb. 13, 2020, 3 p.m. N/A N/A 9.8 ppb (9) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.26 ppb (3) N/A 3.9 μg/m3 (16) 21.0
 
Feb. 13, 2020, 2 p.m. N/A N/A 10.6 ppb (10) N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.27 ppb (3) N/A 1.5 μg/m3 (6) 20.0
 
Feb. 13, 2020, 1 p.m. N/A N/A 17.0 ppb (16) N/A N/A 0.0 ppb (0) 24.0 ppb (18) 0.29 ppb (3) N/A 4.0 μg/m3 (17) 18.0
 
Feb. 13, 2020, noon N/A N/A 7.5 ppb (7) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.27 ppb (3) N/A 2.6 μg/m3 (11) 22.0
 
Feb. 13, 2020, 11 a.m. N/A N/A 5.2 ppb (5) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.27 ppb (3) N/A N/A 22.0
 
Feb. 13, 2020, 10 a.m. N/A N/A 19.6 ppb (18) N/A N/A 0.0 ppb (0) 13.0 ppb (10) 0.36 ppb (4) N/A 6.1 μg/m3 (25) 25.0
 
Feb. 13, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 12.0 ppb (9) 0.36 ppb (4) N/A 8.8 μg/m3 (37) 37.0
 
Feb. 13, 2020, 8 a.m. N/A N/A 17.9 ppb (17) N/A N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 8.2 μg/m3 (34) 34.0
 
Feb. 13, 2020, 7 a.m. N/A N/A 11.1 ppb (10) N/A N/A 0.0 ppb (0) N/A 0.31 ppb (3) N/A 9.1 μg/m3 (38) 38.0
 
Feb. 13, 2020, 6 a.m. N/A N/A 11.3 ppb (10) N/A N/A N/A 21.0 ppb (16) 0.31 ppb (3) N/A 8.5 μg/m3 (35) 35.0
 
Feb. 13, 2020, 5 a.m. N/A N/A 16.7 ppb (15) N/A N/A 0.0 ppb (0) 17.0 ppb (13) 0.34 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
Feb. 13, 2020, 4 a.m. N/A N/A 14.2 ppb (13) N/A N/A 0.0 ppb (0) 19.0 ppb (15) 0.33 ppb (4) N/A 9.9 μg/m3 (41) 41.0
 
Feb. 13, 2020, 3 a.m. N/A N/A 12.2 ppb (11) N/A N/A 0.0 ppb (0) 22.0 ppb (17) 0.32 ppb (4) N/A 9.6 μg/m3 (40) 40.0
 
Feb. 13, 2020, 2 a.m. N/A N/A 11.1 ppb (10) N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.31 ppb (3) N/A 9.5 μg/m3 (40) 40.0
 
Feb. 13, 2020, 1 a.m. N/A N/A 10.6 ppb (10) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.3 ppb (3) N/A 12.7 μg/m3 (51) 51.0
 
Feb. 13, 2020, midnight N/A N/A 15.3 ppb (14) N/A N/A 0.0 ppb (0) 24.0 ppb (18) 0.34 ppb (4) N/A 10.6 μg/m3 (44) 44.0
 
Feb. 12, 2020, 11 p.m. N/A N/A 22.1 ppb (20) N/A N/A 0.0 ppb (0) 21.0 ppb (16) 0.37 ppb (4) N/A 8.7 μg/m3 (36) 36.0
 
Feb. 12, 2020, 10 p.m. N/A N/A 18.9 ppb (18) N/A N/A 0.0 ppb (0) 24.0 ppb (18) 0.36 ppb (4) N/A 6.7 μg/m3 (28) 28.0
 
Feb. 12, 2020, 9 p.m. N/A N/A 11.9 ppb (11) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.33 ppb (4) N/A 3.9 μg/m3 (16) 24.0
 
Feb. 12, 2020, 8 p.m. N/A N/A 9.8 ppb (9) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.31 ppb (3) N/A 2.6 μg/m3 (11) 25.0
 
Feb. 12, 2020, 7 p.m. N/A N/A 10.9 ppb (10) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.32 ppb (4) N/A 2.4 μg/m3 (10) 25.0
 
Feb. 12, 2020, 6 p.m. N/A N/A 10.5 ppb (10) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.3 ppb (3) N/A 2.9 μg/m3 (12) 25.0
 
Feb. 12, 2020, 5 p.m. N/A N/A 13.4 ppb (12) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.31 ppb (3) N/A 8.8 μg/m3 (37) 37.0
 
Feb. 12, 2020, 4 p.m. N/A N/A 17.5 ppb (16) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.29 ppb (3) N/A 8.9 μg/m3 (37) 37.0
 
Feb. 12, 2020, 3 p.m. N/A N/A 26.5 ppb (25) N/A N/A 0.0 ppb (0) 24.0 ppb (18) 0.31 ppb (3) N/A 11.7 μg/m3 (49) 49.0
 
Feb. 12, 2020, 2 p.m. N/A N/A 48.4 ppb (45) N/A N/A 1.0 ppb (1) 15.0 ppb (12) 0.45 ppb (5) N/A 10.6 μg/m3 (44) 45.0
 
Feb. 12, 2020, 1 p.m. N/A N/A 31.7 ppb (29) N/A N/A 0.0 ppb (0) 17.0 ppb (13) 0.44 ppb (5) N/A 8.6 μg/m3 (36) 36.0
 
Feb. 12, 2020, noon N/A N/A 29.4 ppb (27) N/A N/A 0.0 ppb (0) 14.0 ppb (11) 0.42 ppb (5) N/A 7.8 μg/m3 (32) 32.0
 
Feb. 12, 2020, 11 a.m. N/A N/A 21.3 ppb (20) N/A N/A 0.0 ppb (0) 20.0 ppb (15) 0.33 ppb (4) N/A 5.1 μg/m3 (21) 21.0
 
Feb. 12, 2020, 10 a.m. N/A N/A 13.5 ppb (12) N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.32 ppb (4) N/A 6.5 μg/m3 (27) 27.0
 
Feb. 12, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.25 ppb (3) N/A 7.3 μg/m3 (30) 30.0
 
Feb. 12, 2020, 8 a.m. N/A N/A 4.9 ppb (5) N/A N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 5.4 μg/m3 (23) 28.0
 
Feb. 12, 2020, 7 a.m. N/A N/A 4.4 ppb (4) N/A N/A 0.0 ppb (0) N/A 0.23 ppb (3) N/A 5.7 μg/m3 (24) 24.0
 
Feb. 12, 2020, 6 a.m. N/A N/A 4.4 ppb (4) N/A N/A N/A 37.0 ppb (28) 0.23 ppb (3) N/A 5.6 μg/m3 (23) 28.0
 
Feb. 12, 2020, 5 a.m. N/A N/A 6.8 ppb (6) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.25 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Feb. 12, 2020, 4 a.m. N/A N/A 12.5 ppb (12) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.32 ppb (4) N/A 9.2 μg/m3 (38) 38.0
 
Feb. 12, 2020, 3 a.m. N/A N/A 13.8 ppb (13) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.31 ppb (3) N/A 7.9 μg/m3 (33) 33.0
 
Feb. 12, 2020, 2 a.m. N/A N/A 7.3 ppb (7) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.25 ppb (3) N/A 5.4 μg/m3 (23) 26.0
 
Feb. 12, 2020, 1 a.m. N/A N/A 7.8 ppb (7) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.25 ppb (3) N/A 7.3 μg/m3 (30) 30.0
 
Feb. 12, 2020, midnight N/A N/A 6.6 ppb (6) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.24 ppb (3) N/A 7.4 μg/m3 (31) 31.0
 
Feb. 11, 2020, 11 p.m. N/A N/A 7.0 ppb (6) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.25 ppb (3) N/A 8.1 μg/m3 (34) 34.0
 
Feb. 11, 2020, 10 p.m. N/A N/A 8.8 ppb (8) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.27 ppb (3) N/A 9.4 μg/m3 (39) 39.0
 
Feb. 11, 2020, 9 p.m. N/A N/A 8.4 ppb (8) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.27 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Feb. 11, 2020, 8 p.m. N/A N/A 8.5 ppb (8) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.26 ppb (3) N/A 8.1 μg/m3 (34) 34.0
 
Feb. 11, 2020, 7 p.m. N/A N/A 9.3 ppb (9) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.27 ppb (3) N/A 4.7 μg/m3 (20) 26.0
 
Feb. 11, 2020, 6 p.m. N/A N/A 8.3 ppb (8) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.25 ppb (3) N/A 6.4 μg/m3 (27) 27.0
 
Feb. 11, 2020, 5 p.m. N/A N/A 8.3 ppb (8) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.25 ppb (3) N/A 5.1 μg/m3 (21) 27.0
 
Feb. 11, 2020, 4 p.m. N/A N/A 7.9 ppb (7) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.25 ppb (3) N/A 5.0 μg/m3 (21) 27.0
 
Feb. 11, 2020, 3 p.m. N/A N/A 8.0 ppb (7) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.24 ppb (3) N/A 5.9 μg/m3 (25) 27.0
 
Feb. 11, 2020, 2 p.m. N/A N/A 11.2 ppb (10) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.26 ppb (3) N/A 8.2 μg/m3 (34) 34.0
 
Feb. 11, 2020, 1 p.m. N/A N/A 23.5 ppb (22) N/A N/A 0.0 ppb (0) 20.0 ppb (15) 0.35 ppb (4) N/A 8.9 μg/m3 (37) 37.0
 
Feb. 11, 2020, noon N/A N/A 37.6 ppb (35) N/A N/A 0.0 ppb (0) 7.0 ppb (5) 0.46 ppb (5) N/A 8.4 μg/m3 (35) 35.0
 
Feb. 11, 2020, 11 a.m. N/A N/A 28.2 ppb (26) N/A N/A 0.0 ppb (0) 11.0 ppb (8) 0.38 ppb (4) N/A 6.9 μg/m3 (29) 29.0
 
Feb. 11, 2020, 10 a.m. N/A N/A 20.4 ppb (19) N/A N/A 0.0 ppb (0) 16.0 ppb (12) 0.33 ppb (4) N/A 7.7 μg/m3 (32) 32.0
 
Feb. 11, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 21.0 ppb (16) 0.29 ppb (3) N/A 7.7 μg/m3 (32) 32.0
 
Feb. 11, 2020, 8 a.m. N/A N/A 13.0 ppb (12) N/A N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 7.7 μg/m3 (32) 32.0
 
Feb. 11, 2020, 7 a.m. N/A N/A 11.1 ppb (10) N/A N/A 0.0 ppb (0) N/A 0.27 ppb (3) N/A 5.1 μg/m3 (21) 21.0
 
Feb. 11, 2020, 6 a.m. N/A N/A 15.0 ppb (14) N/A N/A N/A 21.0 ppb (16) 0.3 ppb (3) N/A 10.4 μg/m3 (43) 43.0
 
Feb. 11, 2020, 5 a.m. N/A N/A 23.6 ppb (22) N/A N/A 0.0 ppb (0) 15.0 ppb (12) 0.36 ppb (4) N/A 14.6 μg/m3 (56) 56.0
 
Feb. 11, 2020, 4 a.m. N/A N/A 36.5 ppb (34) N/A N/A 0.0 ppb (0) 6.0 ppb (5) 0.48 ppb (5) N/A 16.5 μg/m3 (60) 60.0
 
Feb. 11, 2020, 3 a.m. N/A N/A 21.4 ppb (20) N/A N/A 0.0 ppb (0) 17.0 ppb (13) 0.39 ppb (4) N/A 13.3 μg/m3 (53) 53.0
 
Feb. 11, 2020, 2 a.m. N/A N/A 11.9 ppb (11) N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.3 ppb (3) N/A 9.4 μg/m3 (39) 39.0
 
Feb. 11, 2020, 1 a.m. N/A N/A 7.6 ppb (7) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.27 ppb (3) N/A 7.5 μg/m3 (31) 31.0
 
Feb. 11, 2020, midnight N/A N/A 8.0 ppb (7) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.27 ppb (3) N/A 6.3 μg/m3 (26) 26.0
 
Feb. 10, 2020, 11 p.m. N/A N/A 10.6 ppb (10) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.32 ppb (4) N/A 5.0 μg/m3 (21) 22.0
 
Feb. 10, 2020, 10 p.m. N/A N/A 9.7 ppb (9) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.28 ppb (3) N/A 8.7 μg/m3 (36) 36.0
 
Feb. 10, 2020, 9 p.m. N/A N/A 10.5 ppb (10) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.28 ppb (3) N/A 8.1 μg/m3 (34) 34.0
 
Feb. 10, 2020, 8 p.m. N/A N/A 13.4 ppb (12) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.29 ppb (3) N/A 6.8 μg/m3 (28) 28.0
 
Feb. 10, 2020, 7 p.m. N/A N/A 10.1 ppb (9) N/A N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 8.1 μg/m3 (34) 34.0
 
Feb. 10, 2020, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.69 ppb (8) N/A 8.3 μg/m3 (35) 35.0
 
Feb. 10, 2020, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.72 ppb (8) N/A 5.8 μg/m3 (24) 24.0
 
Feb. 10, 2020, 4 p.m. N/A N/A 11.2 ppb (10) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.73 ppb (8) N/A 6.6 μg/m3 (28) 28.0
 
Feb. 10, 2020, 3 p.m. N/A N/A 11.4 ppb (11) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.72 ppb (8) N/A 7.3 μg/m3 (30) 30.0
 
Feb. 10, 2020, 2 p.m. N/A N/A 15.2 ppb (14) N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.79 ppb (9) N/A 9.3 μg/m3 (39) 39.0
 
Feb. 10, 2020, 1 p.m. N/A N/A 16.7 ppb (15) N/A N/A 0.0 ppb (0) 22.0 ppb (17) 0.76 ppb (8) N/A 9.9 μg/m3 (41) 41.0
 
Feb. 10, 2020, noon N/A N/A 13.7 ppb (13) N/A N/A 0.0 ppb (0) 21.0 ppb (16) 0.76 ppb (8) N/A 7.8 μg/m3 (32) 32.0
 
Feb. 10, 2020, 11 a.m. N/A N/A 12.7 ppb (12) N/A N/A 0.0 ppb (0) 19.0 ppb (15) 0.74 ppb (8) N/A 10.9 μg/m3 (45) 45.0
 
Feb. 10, 2020, 10 a.m. N/A N/A 12.0 ppb (11) N/A N/A 0.0 ppb (0) 21.0 ppb (16) 0.72 ppb (8) N/A 11.3 μg/m3 (47) 47.0
 
Feb. 10, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.68 ppb (8) N/A 9.2 μg/m3 (38) 38.0
 
Feb. 10, 2020, 8 a.m. N/A N/A 8.4 ppb (8) N/A N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 7.3 μg/m3 (30) 30.0
 
Feb. 10, 2020, 7 a.m. N/A N/A 7.1 ppb (7) N/A N/A 0.0 ppb (0) N/A 0.7 ppb (8) N/A 8.8 μg/m3 (37) 37.0
 
Feb. 10, 2020, 6 a.m. N/A N/A 8.6 ppb (8) N/A N/A N/A 20.0 ppb (15) 0.69 ppb (8) N/A 6.7 μg/m3 (28) 28.0
 
Feb. 10, 2020, 5 a.m. N/A N/A 6.6 ppb (6) N/A N/A 0.0 ppb (0) 22.0 ppb (17) 0.69 ppb (8) N/A 1.8 μg/m3 (8) 17.0
 
Feb. 10, 2020, 4 a.m. N/A N/A 6.9 ppb (6) N/A N/A 0.0 ppb (0) 23.0 ppb (18) 0.68 ppb (8) N/A 4.0 μg/m3 (17) 18.0
 
Feb. 10, 2020, 3 a.m. N/A N/A 8.1 ppb (8) N/A N/A 0.0 ppb (0) 22.0 ppb (17) 0.71 ppb (8) N/A 6.3 μg/m3 (26) 26.0
 
Feb. 10, 2020, 2 a.m. N/A N/A 11.1 ppb (10) N/A N/A 0.0 ppb (0) 21.0 ppb (16) 0.7 ppb (8) N/A 7.4 μg/m3 (31) 31.0
 
Feb. 10, 2020, 1 a.m. N/A N/A 15.6 ppb (14) N/A N/A 0.0 ppb (0) 18.0 ppb (14) 0.71 ppb (8) N/A 8.8 μg/m3 (37) 37.0
 
Feb. 10, 2020, midnight N/A N/A 14.3 ppb (13) N/A N/A 0.0 ppb (0) 21.0 ppb (16) 0.72 ppb (8) N/A 8.4 μg/m3 (35) 35.0
 
Feb. 9, 2020, 11 p.m. N/A N/A 11.7 ppb (11) N/A N/A 0.0 ppb (0) 24.0 ppb (18) 0.69 ppb (8) N/A 8.5 μg/m3 (35) 35.0
 
Feb. 9, 2020, 10 p.m. N/A N/A 10.6 ppb (10) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.69 ppb (8) N/A 8.0 μg/m3 (33) 33.0
 
Feb. 9, 2020, 9 p.m. N/A N/A 10.3 ppb (10) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.68 ppb (8) N/A 3.7 μg/m3 (15) 22.0
 
Feb. 9, 2020, 8 p.m. N/A N/A 8.8 ppb (8) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.67 ppb (7) N/A 5.4 μg/m3 (23) 23.0
 
Feb. 9, 2020, 7 p.m. N/A N/A 8.7 ppb (8) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.66 ppb (7) N/A 5.2 μg/m3 (22) 23.0
 
Feb. 9, 2020, 6 p.m. N/A N/A 8.6 ppb (8) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.66 ppb (7) N/A 4.5 μg/m3 (19) 23.0
 
Feb. 9, 2020, 5 p.m. N/A N/A 9.8 ppb (9) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.67 ppb (7) N/A 7.4 μg/m3 (31) 31.0
 
Feb. 9, 2020, 4 p.m. N/A N/A 9.2 ppb (9) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.67 ppb (7) N/A 10.3 μg/m3 (43) 43.0
 
Feb. 9, 2020, 3 p.m. N/A N/A 10.7 ppb (10) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.67 ppb (7) N/A 6.3 μg/m3 (26) 26.0
 
Feb. 9, 2020, 2 p.m. N/A N/A 11.7 ppb (11) N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.67 ppb (7) N/A 6.9 μg/m3 (29) 29.0
 
Feb. 9, 2020, 1 p.m. N/A N/A 12.4 ppb (11) N/A N/A 0.0 ppb (0) 24.0 ppb (18) 0.68 ppb (8) N/A 7.9 μg/m3 (33) 33.0
 
Feb. 9, 2020, noon N/A N/A 12.6 ppb (12) N/A N/A 0.0 ppb (0) 23.0 ppb (18) 0.71 ppb (8) N/A 9.1 μg/m3 (38) 38.0
 
Feb. 9, 2020, 11 a.m. N/A N/A 13.7 ppb (13) N/A N/A 0.0 ppb (0) 21.0 ppb (16) 0.73 ppb (8) N/A 12.8 μg/m3 (52) 52.0
 
Feb. 9, 2020, 10 a.m. N/A N/A 11.3 ppb (10) N/A N/A 0.0 ppb (0) 24.0 ppb (18) 0.7 ppb (8) N/A 11.5 μg/m3 (48) 48.0
 
Feb. 9, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (18) 0.69 ppb (8) N/A 6.3 μg/m3 (26) 26.0
 
Feb. 9, 2020, 8 a.m. N/A N/A 17.7 ppb (16) N/A N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 14.5 μg/m3 (55) 55.0
 
Feb. 9, 2020, 7 a.m. N/A N/A 17.0 ppb (16) N/A N/A 0.0 ppb (0) N/A 0.77 ppb (9) N/A 13.9 μg/m3 (54) 54.0
 
Feb. 9, 2020, 6 a.m. N/A N/A 20.6 ppb (19) N/A N/A N/A 16.0 ppb (12) 0.79 ppb (9) N/A 15.3 μg/m3 (57) 57.0
 
Feb. 9, 2020, 5 a.m. N/A N/A 21.4 ppb (20) N/A N/A 0.0 ppb (0) 17.0 ppb (13) 0.76 ppb (8) N/A 14.0 μg/m3 (54) 54.0
 
Feb. 9, 2020, 4 a.m. N/A N/A 18.7 ppb (17) N/A N/A 0.0 ppb (0) 19.0 ppb (15) 0.76 ppb (8) N/A 9.7 μg/m3 (40) 40.0
 
Feb. 9, 2020, 3 a.m. N/A N/A 20.7 ppb (19) N/A N/A 0.0 ppb (0) 18.0 ppb (14) 0.77 ppb (9) N/A 13.4 μg/m3 (53) 53.0
 
Feb. 9, 2020, 2 a.m. N/A N/A 15.1 ppb (14) N/A N/A 0.0 ppb (0) 23.0 ppb (18) 0.73 ppb (8) N/A 11.1 μg/m3 (46) 46.0
 
Feb. 9, 2020, 1 a.m. N/A N/A 14.1 ppb (13) N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.72 ppb (8) N/A 10.2 μg/m3 (42) 42.0
 
Feb. 9, 2020, midnight N/A N/A 17.0 ppb (16) N/A N/A 0.0 ppb (0) 22.0 ppb (17) 0.74 ppb (8) N/A 10.7 μg/m3 (45) 45.0
 
Feb. 8, 2020, 11 p.m. N/A N/A 13.8 ppb (13) N/A N/A 0.0 ppb (0) 24.0 ppb (18) 0.72 ppb (8) N/A 10.2 μg/m3 (42) 42.0
 
Feb. 8, 2020, 10 p.m. N/A N/A 8.9 ppb (8) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.66 ppb (7) N/A 9.0 μg/m3 (38) 38.0
 
Feb. 8, 2020, 9 p.m. N/A N/A 6.3 ppb (6) N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.66 ppb (7) N/A 6.1 μg/m3 (25) 25.0
 
Feb. 8, 2020, 8 p.m. N/A N/A 5.9 ppb (5) N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.66 ppb (7) N/A 5.6 μg/m3 (23) 25.0
 
Feb. 8, 2020, 7 p.m. N/A N/A 5.1 ppb (5) N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.65 ppb (7) N/A 6.7 μg/m3 (28) 28.0
 
Feb. 8, 2020, 6 p.m. N/A N/A 5.8 ppb (5) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.64 ppb (7) N/A 6.1 μg/m3 (25) 25.0
 
Feb. 8, 2020, 5 p.m. N/A N/A 6.1 ppb (6) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.64 ppb (7) N/A 6.4 μg/m3 (27) 27.0
 
Feb. 8, 2020, 4 p.m. N/A N/A 4.5 ppb (4) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.64 ppb (7) N/A 7.6 μg/m3 (32) 32.0
 
Feb. 8, 2020, 3 p.m. N/A N/A 6.5 ppb (6) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.66 ppb (7) N/A 6.3 μg/m3 (26) 26.0
 
Feb. 8, 2020, 2 p.m. N/A N/A 7.5 ppb (7) N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.64 ppb (7) N/A 5.5 μg/m3 (23) 23.0
 
Feb. 8, 2020, 1 p.m. N/A N/A 5.1 ppb (5) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.64 ppb (7) N/A 6.6 μg/m3 (28) 28.0
 
Feb. 8, 2020, noon N/A N/A 4.9 ppb (5) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.6 ppb (7) N/A 5.5 μg/m3 (23) 23.0
 
Feb. 8, 2020, 11 a.m. N/A N/A 3.9 ppb (4) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.61 ppb (7) N/A 2.5 μg/m3 (10) 22.0
 
Feb. 8, 2020, 10 a.m. N/A N/A 4.1 ppb (4) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.6 ppb (7) N/A 0.4 μg/m3 (2) 23.0
 
Feb. 8, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (18) 0.66 ppb (7) N/A 5.5 μg/m3 (23) 23.0
 
Feb. 8, 2020, 8 a.m. N/A N/A 20.2 ppb (19) N/A N/A 0.0 ppb (0) 17.0 ppb (13) N/A N/A 7.4 μg/m3 (31) 31.0
 
Feb. 8, 2020, 7 a.m. N/A N/A 13.2 ppb (12) N/A N/A 0.0 ppb (0) N/A 0.66 ppb (7) N/A 9.3 μg/m3 (39) 39.0
 
Feb. 8, 2020, 6 a.m. N/A N/A 9.5 ppb (9) N/A N/A N/A 25.0 ppb (19) 0.65 ppb (7) N/A 8.6 μg/m3 (36) 36.0
 
Feb. 8, 2020, 5 a.m. N/A N/A 8.1 ppb (8) N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.65 ppb (7) N/A 7.3 μg/m3 (30) 30.0
 
Feb. 8, 2020, 4 a.m. N/A N/A 7.0 ppb (6) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.63 ppb (7) N/A 5.8 μg/m3 (24) 24.0
 
Feb. 8, 2020, 3 a.m. N/A N/A 9.7 ppb (9) N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.66 ppb (7) N/A 8.0 μg/m3 (33) 33.0
 
Feb. 8, 2020, 2 a.m. N/A N/A 11.2 ppb (10) N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.67 ppb (7) N/A 5.7 μg/m3 (24) 24.0
 
Feb. 8, 2020, 1 a.m. N/A N/A 8.3 ppb (8) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.65 ppb (7) N/A 7.1 μg/m3 (30) 30.0
 
Feb. 8, 2020, midnight N/A N/A 7.8 ppb (7) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.65 ppb (7) N/A 4.5 μg/m3 (19) 23.0
 
Feb. 7, 2020, 11 p.m. N/A N/A 9.8 ppb (9) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.66 ppb (7) N/A 7.2 μg/m3 (30) 30.0
 
Feb. 7, 2020, 10 p.m. N/A N/A 8.5 ppb (8) N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.65 ppb (7) N/A 3.5 μg/m3 (15) 25.0
 
Feb. 7, 2020, 9 p.m. N/A N/A 9.2 ppb (9) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.65 ppb (7) N/A 12.9 μg/m3 (52) 52.0
 
Feb. 7, 2020, 8 p.m. N/A N/A 7.1 ppb (7) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.64 ppb (7) N/A 8.0 μg/m3 (33) 33.0
 
Feb. 7, 2020, 7 p.m. N/A N/A 6.7 ppb (6) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.64 ppb (7) N/A 4.8 μg/m3 (20) 25.0
 
Feb. 7, 2020, 6 p.m. N/A N/A 5.7 ppb (5) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.62 ppb (7) N/A 1.9 μg/m3 (8) 27.0
 
Feb. 7, 2020, 5 p.m. N/A N/A 9.7 ppb (9) N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.62 ppb (7) N/A 4.5 μg/m3 (19) 25.0
 
Feb. 7, 2020, 4 p.m. N/A N/A 12.3 ppb (11) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.65 ppb (7) N/A 10.5 μg/m3 (44) 44.0
 
Feb. 7, 2020, 3 p.m. N/A N/A 26.3 ppb (24) N/A N/A 0.0 ppb (0) 21.0 ppb (16) 0.72 ppb (8) N/A 15.9 μg/m3 (58) 58.0
 
Feb. 7, 2020, 2 p.m. N/A N/A 32.6 ppb (30) N/A N/A 0.0 ppb (0) 15.0 ppb (12) 0.75 ppb (8) N/A 10.5 μg/m3 (44) 44.0
 
Feb. 7, 2020, 1 p.m. N/A N/A 41.6 ppb (39) N/A N/A 0.0 ppb (0) 10.0 ppb (8) 0.87 ppb (10) N/A 15.5 μg/m3 (57) 57.0
 
Feb. 7, 2020, noon N/A N/A 36.8 ppb (34) N/A N/A 0.0 ppb (0) 9.0 ppb (7) 0.84 ppb (9) N/A 10.3 μg/m3 (43) 43.0
 
Feb. 7, 2020, 11 a.m. N/A N/A 24.2 ppb (22) N/A N/A 0.0 ppb (0) 15.0 ppb (12) 0.73 ppb (8) N/A 8.2 μg/m3 (34) 34.0
 
Feb. 7, 2020, 10 a.m. N/A N/A 12.6 ppb (12) N/A N/A 0.0 ppb (0) 23.0 ppb (18) 0.63 ppb (7) N/A 7.2 μg/m3 (30) 30.0
 
Feb. 7, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (15) 0.63 ppb (7) N/A 8.6 μg/m3 (36) 36.0
 
Feb. 7, 2020, 8 a.m. N/A N/A 12.8 ppb (12) N/A N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 6.3 μg/m3 (26) 26.0
 
Feb. 7, 2020, 7 a.m. N/A N/A 15.3 ppb (14) N/A N/A 0.0 ppb (0) N/A 0.64 ppb (7) N/A 8.2 μg/m3 (34) 34.0
 
Feb. 7, 2020, 6 a.m. N/A N/A 11.9 ppb (11) N/A N/A N/A 27.0 ppb (21) 0.62 ppb (7) N/A 5.4 μg/m3 (23) 23.0
 
Feb. 7, 2020, 5 a.m. N/A N/A 10.2 ppb (9) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.61 ppb (7) N/A 3.5 μg/m3 (15) 22.0
 
Feb. 7, 2020, 4 a.m. N/A N/A 8.7 ppb (8) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.6 ppb (7) N/A 4.8 μg/m3 (20) 24.0
 
Feb. 7, 2020, 3 a.m. N/A N/A 8.3 ppb (8) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.62 ppb (7) N/A 5.7 μg/m3 (24) 24.0
 
Feb. 7, 2020, 2 a.m. N/A N/A 8.0 ppb (7) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.63 ppb (7) N/A 6.3 μg/m3 (26) 26.0
 
Feb. 7, 2020, 1 a.m. N/A N/A 9.0 ppb (8) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.62 ppb (7) N/A 5.3 μg/m3 (22) 24.0
 
Feb. 7, 2020, midnight N/A N/A 8.8 ppb (8) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.62 ppb (7) N/A 4.0 μg/m3 (17) 24.0
 
Feb. 6, 2020, 11 p.m. N/A N/A 9.3 ppb (9) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.63 ppb (7) N/A 2.0 μg/m3 (8) 23.0