ID: 497

AQSQID: 260810020

Site Name: Grand Rapids

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

Updated: July 12, 2020, 2:39 a.m.

Location: Grand Rapids (Belknap Lookout), MI

Reporting: True, Located: True

Current AQI: 38.0

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
July 12, 2020, midnight N/A N/A 3.8 ppb (4) N/A N/A 1.0 ppb (1) 38.0 ppb (29) 0.36 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
July 11, 2020, 11 p.m. N/A N/A 3.0 ppb (3) N/A N/A 1.0 ppb (1) 38.0 ppb (29) 0.33 ppb (4) N/A 7.3 μg/m3 (30) 30.0
 
July 11, 2020, 10 p.m. N/A N/A 2.8 ppb (3) N/A N/A 1.0 ppb (1) 38.0 ppb (29) 0.32 ppb (4) N/A 3.6 μg/m3 (15) 29.0
 
July 11, 2020, 9 p.m. N/A N/A 3.0 ppb (3) N/A N/A 1.0 ppb (1) 37.0 ppb (28) 0.32 ppb (4) N/A 3.5 μg/m3 (15) 28.0
 
July 11, 2020, 8 p.m. N/A N/A 2.9 ppb (3) N/A N/A 1.0 ppb (1) 38.0 ppb (29) 0.31 ppb (3) N/A 3.6 μg/m3 (15) 29.0
 
July 11, 2020, 7 p.m. N/A N/A 3.2 ppb (3) N/A N/A 1.0 ppb (1) 38.0 ppb (29) 0.31 ppb (3) N/A 6.3 μg/m3 (26) 29.0
 
July 11, 2020, 6 p.m. N/A N/A 3.0 ppb (3) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.31 ppb (3) N/A 1.0 μg/m3 (4) 28.0
 
July 11, 2020, 5 p.m. N/A N/A 3.4 ppb (3) N/A N/A 1.0 ppb (1) 37.0 ppb (28) 0.31 ppb (3) N/A 4.3 μg/m3 (18) 28.0
 
July 11, 2020, 4 p.m. N/A N/A 4.0 ppb (4) N/A N/A 1.0 ppb (1) 36.0 ppb (28) 0.32 ppb (4) N/A 1.7 μg/m3 (7) 28.0
 
July 11, 2020, 3 p.m. N/A N/A 3.2 ppb (3) N/A N/A 1.0 ppb (1) 36.0 ppb (28) 0.32 ppb (4) N/A 3.0 μg/m3 (12) 28.0
 
July 11, 2020, 2 p.m. N/A N/A 3.1 ppb (3) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.31 ppb (3) N/A 7.5 μg/m3 (31) 31.0
 
July 11, 2020, 1 p.m. N/A N/A 3.4 ppb (3) N/A N/A 1.0 ppb (1) 32.0 ppb (25) 0.31 ppb (3) N/A 6.9 μg/m3 (29) 29.0
 
July 11, 2020, noon N/A N/A 4.5 ppb (4) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.31 ppb (3) N/A 3.2 μg/m3 (13) 23.0
 
July 11, 2020, 11 a.m. N/A N/A 7.3 ppb (7) N/A N/A 0.0 ppb (0) 20.0 ppb (15) 0.37 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
July 11, 2020, 10 a.m. N/A N/A 7.4 ppb (7) N/A N/A 0.0 ppb (0) 16.0 ppb (12) 0.35 ppb (4) N/A 9.3 μg/m3 (39) 39.0
 
July 11, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 18.0 ppb (14) 0.32 ppb (4) N/A 8.2 μg/m3 (34) 34.0
 
July 11, 2020, 8 a.m. N/A N/A 4.4 ppb (4) N/A N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 6.3 μg/m3 (26) 26.0
 
July 11, 2020, 7 a.m. N/A N/A 5.0 ppb (5) N/A N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 7.3 μg/m3 (30) 30.0
 
July 11, 2020, 6 a.m. N/A N/A 4.4 ppb (4) N/A N/A N/A 23.0 ppb (18) 0.31 ppb (3) N/A 6.7 μg/m3 (28) 28.0
 
July 11, 2020, 5 a.m. N/A N/A 4.6 ppb (4) N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.32 ppb (4) N/A 6.1 μg/m3 (25) 25.0
 
July 11, 2020, 4 a.m. N/A N/A 4.7 ppb (4) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.32 ppb (4) N/A 6.3 μg/m3 (26) 26.0
 
July 11, 2020, 3 a.m. N/A N/A 4.8 ppb (4) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.33 ppb (4) N/A 3.1 μg/m3 (13) 24.0
 
July 11, 2020, 2 a.m. N/A N/A 4.6 ppb (4) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.33 ppb (4) N/A 3.8 μg/m3 (16) 27.0
 
July 11, 2020, 1 a.m. N/A N/A 3.6 ppb (3) N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.31 ppb (3) N/A 4.4 μg/m3 (18) 32.0
 
July 11, 2020, midnight N/A N/A 2.9 ppb (3) N/A N/A 0.0 ppb (0) 45.0 ppb (35) 0.29 ppb (3) N/A 4.2 μg/m3 (18) 35.0
 
July 10, 2020, 11 p.m. N/A N/A 3.1 ppb (3) N/A N/A 0.0 ppb (0) 49.0 ppb (38) 0.28 ppb (3) N/A 1.8 μg/m3 (8) 38.0
 
July 10, 2020, 10 p.m. N/A N/A 2.8 ppb (3) N/A N/A 0.0 ppb (0) 49.0 ppb (38) 0.28 ppb (3) N/A 2.8 μg/m3 (12) 38.0
 
July 10, 2020, 9 p.m. N/A N/A 4.1 ppb (4) N/A N/A 0.0 ppb (0) 49.0 ppb (38) 0.32 ppb (4) N/A -0.9 μg/m3 (0) 38.0
 
July 10, 2020, 8 p.m. N/A N/A 6.4 ppb (6) N/A N/A 0.0 ppb (0) 45.0 ppb (35) 0.34 ppb (4) N/A 1.4 μg/m3 (6) 35.0
 
July 10, 2020, 7 p.m. N/A N/A 5.4 ppb (5) N/A N/A 0.0 ppb (0) 49.0 ppb (38) 0.32 ppb (4) N/A 5.9 μg/m3 (25) 38.0
 
July 10, 2020, 6 p.m. N/A N/A 6.6 ppb (6) N/A N/A 0.0 ppb (0) 49.0 ppb (38) 0.33 ppb (4) N/A -1.5 μg/m3 (0) 38.0
 
July 10, 2020, 5 p.m. N/A N/A 7.3 ppb (7) N/A N/A 0.0 ppb (0) 46.0 ppb (35) 0.33 ppb (4) N/A 6.7 μg/m3 (28) 35.0
 
July 10, 2020, 4 p.m. N/A N/A 5.0 ppb (5) N/A N/A 0.0 ppb (0) 53.0 ppb (41) 0.29 ppb (3) N/A 6.0 μg/m3 (25) 41.0
 
July 10, 2020, 3 p.m. N/A N/A 6.8 ppb (6) N/A N/A 0.0 ppb (0) 44.0 ppb (34) 0.3 ppb (3) N/A 3.2 μg/m3 (13) 34.0
 
July 10, 2020, 2 p.m. N/A N/A 11.2 ppb (10) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.34 ppb (4) N/A 5.6 μg/m3 (23) 26.0
 
July 10, 2020, 1 p.m. N/A N/A 8.7 ppb (8) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.33 ppb (4) N/A 6.1 μg/m3 (25) 28.0
 
July 10, 2020, noon N/A N/A 10.1 ppb (9) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.33 ppb (4) N/A 6.8 μg/m3 (28) 28.0
 
July 10, 2020, 11 a.m. N/A N/A 5.5 ppb (5) N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.3 ppb (3) N/A 4.4 μg/m3 (18) 32.0
 
July 10, 2020, 10 a.m. N/A N/A 4.6 ppb (4) N/A N/A 0.0 ppb (0) 46.0 ppb (35) 0.28 ppb (3) N/A 0.8 μg/m3 (3) 35.0
 
July 10, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 44.0 ppb (34) 0.27 ppb (3) N/A 3.5 μg/m3 (15) 34.0
 
July 10, 2020, 8 a.m. N/A N/A 3.1 ppb (3) N/A N/A 0.0 ppb (0) 48.0 ppb (37) N/A N/A 6.7 μg/m3 (28) 37.0
 
July 10, 2020, 7 a.m. N/A N/A 6.1 ppb (6) N/A N/A 0.0 ppb (0) N/A 0.28 ppb (3) N/A 8.6 μg/m3 (36) 36.0
 
July 10, 2020, 6 a.m. N/A N/A 4.3 ppb (4) N/A N/A N/A 36.0 ppb (28) 0.26 ppb (3) N/A 5.4 μg/m3 (23) 28.0
 
July 10, 2020, 5 a.m. N/A N/A 4.1 ppb (4) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.26 ppb (3) N/A 7.4 μg/m3 (31) 31.0
 
July 10, 2020, 4 a.m. N/A N/A 3.9 ppb (4) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.27 ppb (3) N/A 5.0 μg/m3 (21) 26.0
 
July 10, 2020, 3 a.m. N/A N/A 6.7 ppb (6) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.32 ppb (4) N/A 5.0 μg/m3 (21) 22.0
 
July 10, 2020, 2 a.m. N/A N/A 5.7 ppb (5) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.3 ppb (3) N/A 4.8 μg/m3 (20) 23.0
 
July 10, 2020, 1 a.m. N/A N/A 5.0 ppb (5) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.32 ppb (4) N/A 3.2 μg/m3 (13) 24.0
 
July 10, 2020, midnight N/A N/A 8.4 ppb (8) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.39 ppb (4) N/A 11.7 μg/m3 (49) 49.0
 
July 9, 2020, 11 p.m. N/A N/A 6.8 ppb (6) N/A N/A 0.0 ppb (0) 51.0 ppb (39) 0.32 ppb (4) N/A 9.7 μg/m3 (40) 40.0
 
July 9, 2020, 10 p.m. N/A N/A 5.3 ppb (5) N/A N/A 0.0 ppb (0) 58.0 ppb (45) 0.28 ppb (3) N/A 2.2 μg/m3 (9) 45.0
 
July 9, 2020, 9 p.m. N/A N/A 4.9 ppb (5) N/A N/A 0.0 ppb (0) 54.0 ppb (42) 0.29 ppb (3) N/A 7.5 μg/m3 (31) 42.0
 
July 9, 2020, 8 p.m. N/A N/A 7.9 ppb (7) N/A N/A 0.0 ppb (0) 51.0 ppb (39) 0.3 ppb (3) N/A 12.4 μg/m3 (51) 51.0
 
July 9, 2020, 7 p.m. N/A N/A 5.4 ppb (5) N/A N/A 0.0 ppb (0) 62.0 ppb (48) 0.27 ppb (3) N/A 11.6 μg/m3 (48) 48.0
 
July 9, 2020, 6 p.m. N/A N/A 4.8 ppb (4) N/A N/A 1.0 ppb (1) 69.0 ppb (53) 0.26 ppb (3) N/A 10.4 μg/m3 (43) 53.0
 
July 9, 2020, 5 p.m. N/A N/A 4.3 ppb (4) N/A N/A 1.0 ppb (1) 70.0 ppb (54) 0.26 ppb (3) N/A 11.7 μg/m3 (49) 54.0
 
July 9, 2020, 4 p.m. N/A N/A 4.4 ppb (4) N/A N/A 1.0 ppb (1) 70.0 ppb (54) 0.26 ppb (3) N/A 10.5 μg/m3 (44) 54.0
 
July 9, 2020, 3 p.m. N/A N/A 5.2 ppb (5) N/A N/A 1.0 ppb (1) 66.0 ppb (51) 0.26 ppb (3) N/A 9.2 μg/m3 (38) 51.0
 
July 9, 2020, 2 p.m. N/A N/A 15.4 ppb (14) N/A N/A 1.0 ppb (1) 52.0 ppb (40) 0.36 ppb (4) N/A 12.7 μg/m3 (51) 51.0
 
July 9, 2020, 1 p.m. N/A N/A 28.9 ppb (27) N/A N/A 1.0 ppb (1) 33.0 ppb (25) 0.49 ppb (5) N/A 16.2 μg/m3 (59) 59.0
 
July 9, 2020, noon N/A N/A 34.1 ppb (32) N/A N/A 1.0 ppb (1) 10.0 ppb (8) 0.59 ppb (7) N/A 15.7 μg/m3 (58) 58.0
 
July 9, 2020, 11 a.m. N/A N/A 25.2 ppb (23) N/A N/A 1.0 ppb (1) 7.0 ppb (5) 0.53 ppb (6) N/A 11.9 μg/m3 (50) 50.0
 
July 9, 2020, 10 a.m. N/A N/A 22.6 ppb (21) N/A N/A 1.0 ppb (1) 4.0 ppb (3) 0.48 ppb (5) N/A 10.6 μg/m3 (44) 44.0
 
July 9, 2020, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 9.0 ppb (7) 0.36 ppb (4) N/A 11.1 μg/m3 (46) 46.0
 
July 9, 2020, 8 a.m. N/A N/A 13.5 ppb (12) N/A N/A 1.0 ppb (1) 13.0 ppb (10) N/A N/A 9.4 μg/m3 (39) 39.0
 
July 9, 2020, 7 a.m. N/A N/A 11.0 ppb (10) N/A N/A 1.0 ppb (1) N/A 0.33 ppb (4) N/A 11.6 μg/m3 (48) 48.0
 
July 9, 2020, 6 a.m. N/A N/A 11.8 ppb (11) N/A N/A N/A 22.0 ppb (17) 0.32 ppb (4) N/A 9.3 μg/m3 (39) 39.0
 
July 9, 2020, 5 a.m. N/A N/A 11.7 ppb (11) N/A N/A 1.0 ppb (1) 25.0 ppb (19) 0.33 ppb (4) N/A 8.9 μg/m3 (37) 37.0
 
July 9, 2020, 4 a.m. N/A N/A 11.9 ppb (11) N/A N/A 1.0 ppb (1) 31.0 ppb (24) 0.32 ppb (4) N/A 8.7 μg/m3 (36) 36.0
 
July 9, 2020, 3 a.m. N/A N/A 11.0 ppb (10) N/A N/A 1.0 ppb (1) 40.0 ppb (31) 0.32 ppb (4) N/A 6.8 μg/m3 (28) 31.0
 
July 9, 2020, 2 a.m. N/A N/A 5.8 ppb (5) N/A N/A 1.0 ppb (1) 49.0 ppb (38) 0.25 ppb (3) N/A 5.3 μg/m3 (22) 38.0
 
July 9, 2020, 1 a.m. N/A N/A 5.1 ppb (5) N/A N/A 1.0 ppb (1) 51.0 ppb (39) 0.25 ppb (3) N/A 5.6 μg/m3 (23) 39.0
 
July 9, 2020, midnight N/A N/A 4.0 ppb (4) N/A N/A 1.0 ppb (1) 58.0 ppb (45) 0.23 ppb (3) N/A 7.5 μg/m3 (31) 45.0
 
July 8, 2020, 11 p.m. N/A N/A 4.1 ppb (4) N/A N/A 1.0 ppb (1) 63.0 ppb (48) 0.23 ppb (3) N/A 2.4 μg/m3 (10) 48.0
 
July 8, 2020, 10 p.m. N/A N/A 3.4 ppb (3) N/A N/A 1.0 ppb (1) 67.0 ppb (52) 0.22 ppb (2) N/A 9.0 μg/m3 (38) 52.0
 
July 8, 2020, 9 p.m. N/A N/A 4.8 ppb (4) N/A N/A 1.0 ppb (1) 68.0 ppb (52) 0.25 ppb (3) N/A 9.9 μg/m3 (41) 52.0
 
July 8, 2020, 8 p.m. N/A N/A 9.2 ppb (9) N/A N/A 1.0 ppb (1) 73.0 ppb (57) 0.28 ppb (3) N/A 9.1 μg/m3 (38) 57.0
 
July 8, 2020, 7 p.m. N/A N/A 4.4 ppb (4) N/A N/A 1.0 ppb (1) 74.0 ppb (57) 0.26 ppb (3) N/A 7.3 μg/m3 (30) 57.0
 
July 8, 2020, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 64.0 ppb (49) 0.26 ppb (3) N/A 10.2 μg/m3 (42) 49.0
 
July 8, 2020, 5 p.m. N/A N/A 8.0 ppb (7) N/A N/A 1.0 ppb (1) 73.0 ppb (57) 0.27 ppb (3) N/A 10.4 μg/m3 (43) 57.0
 
July 8, 2020, 4 p.m. N/A N/A 10.1 ppb (9) N/A N/A 1.0 ppb (1) 72.0 ppb (56) 0.26 ppb (3) N/A 13.1 μg/m3 (52) 56.0
 
July 8, 2020, 3 p.m. N/A N/A 8.3 ppb (8) N/A N/A 1.0 ppb (1) 60.0 ppb (46) 0.25 ppb (3) N/A 6.3 μg/m3 (26) 46.0
 
July 8, 2020, 2 p.m. N/A N/A 15.1 ppb (14) N/A N/A 1.0 ppb (1) 44.0 ppb (34) 0.29 ppb (3) N/A 3.1 μg/m3 (13) 34.0
 
July 8, 2020, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 26.0 ppb (20) 0.39 ppb (4) N/A 11.8 μg/m3 (49) 49.0
 
July 8, 2020, noon N/A N/A N/A N/A N/A 1.0 ppb (1) 30.0 ppb (23) 0.28 ppb (3) N/A 8.4 μg/m3 (35) 35.0
 
July 8, 2020, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.28 ppb (3) N/A 9.6 μg/m3 (40) 40.0
 
July 8, 2020, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 36.0 ppb (28) 0.28 ppb (3) N/A 13.0 μg/m3 (52) 52.0
 
July 8, 2020, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 41.0 ppb (32) 0.24 ppb (3) N/A 13.8 μg/m3 (54) 54.0
 
July 8, 2020, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 41.0 ppb (32) N/A N/A 10.6 μg/m3 (44) 44.0
 
July 8, 2020, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 0.21 ppb (2) N/A 6.6 μg/m3 (28) 28.0
 
July 8, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) 0.21 ppb (2) N/A 5.5 μg/m3 (23) 38.0
 
July 8, 2020, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 62.0 ppb (48) 0.24 ppb (3) N/A 15.5 μg/m3 (57) 57.0
 
July 8, 2020, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 61.0 ppb (47) 0.27 ppb (3) N/A 16.0 μg/m3 (59) 59.0
 
July 8, 2020, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 52.0 ppb (40) 0.25 ppb (3) N/A 11.3 μg/m3 (47) 47.0
 
July 8, 2020, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 52.0 ppb (40) 0.23 ppb (3) N/A 10.1 μg/m3 (42) 42.0
 
July 8, 2020, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 53.0 ppb (41) 0.23 ppb (3) N/A 11.5 μg/m3 (48) 48.0
 
July 8, 2020, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 56.0 ppb (43) 0.23 ppb (3) N/A 10.6 μg/m3 (44) 44.0
 
July 7, 2020, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 58.0 ppb (45) 0.19 ppb (2) N/A 13.5 μg/m3 (53) 53.0
 
July 7, 2020, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 59.0 ppb (45) 0.18 ppb (2) N/A 13.9 μg/m3 (54) 54.0
 
July 7, 2020, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 60.0 ppb (46) 0.19 ppb (2) N/A 10.3 μg/m3 (43) 46.0
 
July 7, 2020, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 60.0 ppb (46) 0.2 ppb (2) N/A 12.1 μg/m3 (50) 50.0
 
July 7, 2020, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 61.0 ppb (47) 0.2 ppb (2) N/A 7.3 μg/m3 (30) 47.0
 
July 7, 2020, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 61.0 ppb (47) 0.19 ppb (2) N/A 10.7 μg/m3 (45) 47.0
 
July 7, 2020, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 63.0 ppb (48) 0.2 ppb (2) N/A 10.0 μg/m3 (42) 48.0
 
July 7, 2020, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 67.0 ppb (52) 0.21 ppb (2) N/A N/A 52.0
 
July 7, 2020, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 65.0 ppb (50) 0.21 ppb (2) N/A 10.0 μg/m3 (42) 50.0
 
July 7, 2020, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 62.0 ppb (48) 0.27 ppb (3) N/A 13.3 μg/m3 (53) 53.0
 
July 7, 2020, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 49.0 ppb (38) 0.31 ppb (3) N/A 14.0 μg/m3 (54) 54.0
 
July 7, 2020, noon N/A N/A N/A N/A N/A 1.0 ppb (1) 24.0 ppb (18) 0.5 ppb (6) N/A 14.7 μg/m3 (56) 56.0
 
July 7, 2020, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 9.0 ppb (7) 0.63 ppb (7) N/A 19.5 μg/m3 (66) 66.0
 
July 7, 2020, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 10.0 ppb (8) 0.41 ppb (5) N/A 16.2 μg/m3 (59) 59.0
 
July 7, 2020, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 16.0 ppb (12) 0.3 ppb (3) N/A 14.2 μg/m3 (55) 55.0
 
July 7, 2020, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 15.0 ppb (12) N/A N/A 13.3 μg/m3 (53) 53.0
 
July 7, 2020, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 0.38 ppb (4) N/A 12.7 μg/m3 (51) 51.0
 
July 7, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) 0.31 ppb (3) N/A 14.8 μg/m3 (56) 56.0
 
July 7, 2020, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 19.0 ppb (15) 0.39 ppb (4) N/A 16.3 μg/m3 (59) 59.0
 
July 7, 2020, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 21.0 ppb (16) 0.38 ppb (4) N/A 13.9 μg/m3 (54) 54.0
 
July 7, 2020, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 30.0 ppb (23) 0.34 ppb (4) N/A 18.6 μg/m3 (64) 64.0
 
July 7, 2020, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 47.0 ppb (36) 0.25 ppb (3) N/A 9.1 μg/m3 (38) 38.0
 
July 7, 2020, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 53.0 ppb (41) 0.23 ppb (3) N/A 11.1 μg/m3 (46) 46.0
 
July 7, 2020, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 59.0 ppb (45) 0.18 ppb (2) N/A 10.2 μg/m3 (42) 45.0
 
July 6, 2020, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 60.0 ppb (46) 0.18 ppb (2) N/A 9.0 μg/m3 (38) 46.0
 
July 6, 2020, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 63.0 ppb (48) 0.17 ppb (2) N/A 9.6 μg/m3 (40) 48.0
 
July 6, 2020, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 62.0 ppb (48) 0.18 ppb (2) N/A 12.5 μg/m3 (51) 51.0
 
July 6, 2020, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 60.0 ppb (46) 0.16 ppb (2) N/A 12.7 μg/m3 (51) 51.0
 
July 6, 2020, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 60.0 ppb (46) 0.16 ppb (2) N/A 8.4 μg/m3 (35) 46.0
 
July 6, 2020, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 61.0 ppb (47) 0.17 ppb (2) N/A 10.3 μg/m3 (43) 47.0
 
July 6, 2020, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 55.0 ppb (42) 0.17 ppb (2) N/A 9.2 μg/m3 (38) 42.0
 
July 6, 2020, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 53.0 ppb (41) N/A N/A 10.2 μg/m3 (42) 42.0
 
July 6, 2020, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 52.0 ppb (40) 0.48 ppb (5) N/A 10.6 μg/m3 (44) 44.0
 
July 6, 2020, 2 p.m. N/A N/A 6.7 ppb (6) N/A N/A 1.0 ppb (1) 52.0 ppb (40) 0.38 ppb (4) N/A 8.2 μg/m3 (34) 40.0
 
July 6, 2020, 1 p.m. N/A N/A 9.1 ppb (8) N/A N/A 1.0 ppb (1) 44.0 ppb (34) 0.4 ppb (4) N/A 5.4 μg/m3 (23) 34.0
 
July 6, 2020, noon N/A N/A 24.3 ppb (23) N/A N/A 1.0 ppb (1) 28.0 ppb (22) 0.46 ppb (5) N/A 9.1 μg/m3 (38) 38.0
 
July 6, 2020, 11 a.m. N/A N/A 21.3 ppb (20) N/A N/A 1.0 ppb (1) 16.0 ppb (12) 0.5 ppb (6) N/A 13.0 μg/m3 (52) 52.0
 
July 6, 2020, 10 a.m. N/A N/A 11.7 ppb (11) N/A N/A 1.0 ppb (1) 19.0 ppb (15) 0.45 ppb (5) N/A 13.5 μg/m3 (53) 53.0
 
July 6, 2020, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 23.0 ppb (18) 0.4 ppb (4) N/A 14.0 μg/m3 (54) 54.0
 
July 6, 2020, 8 a.m. N/A N/A 9.6 ppb (9) N/A N/A 1.0 ppb (1) 23.0 ppb (18) N/A N/A 13.3 μg/m3 (53) 53.0
 
July 6, 2020, 7 a.m. N/A N/A 9.0 ppb (8) N/A N/A 1.0 ppb (1) N/A 0.41 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
July 6, 2020, 6 a.m. N/A N/A 7.9 ppb (7) N/A N/A N/A 26.0 ppb (20) 0.41 ppb (5) N/A 10.9 μg/m3 (45) 45.0
 
July 6, 2020, 5 a.m. N/A N/A 5.8 ppb (5) N/A N/A 1.0 ppb (1) 34.0 ppb (26) 0.4 ppb (4) N/A 11.5 μg/m3 (48) 48.0
 
July 6, 2020, 4 a.m. N/A N/A 5.0 ppb (5) N/A N/A 1.0 ppb (1) 34.0 ppb (26) 0.39 ppb (4) N/A 8.6 μg/m3 (36) 36.0
 
July 6, 2020, 3 a.m. N/A N/A 6.2 ppb (6) N/A N/A 1.0 ppb (1) 32.0 ppb (25) 0.4 ppb (4) N/A 7.4 μg/m3 (31) 31.0
 
July 6, 2020, 2 a.m. N/A N/A 5.5 ppb (5) N/A N/A 1.0 ppb (1) 34.0 ppb (26) 0.39 ppb (4) N/A 12.3 μg/m3 (51) 51.0
 
July 6, 2020, 1 a.m. N/A N/A 4.7 ppb (4) N/A N/A 1.0 ppb (1) 43.0 ppb (33) 0.38 ppb (4) N/A 6.0 μg/m3 (25) 33.0
 
July 6, 2020, midnight N/A N/A 4.3 ppb (4) N/A N/A 1.0 ppb (1) 57.0 ppb (44) 0.37 ppb (4) N/A 8.1 μg/m3 (34) 44.0
 
July 5, 2020, 11 p.m. N/A N/A 3.8 ppb (4) N/A N/A 1.0 ppb (1) 57.0 ppb (44) 0.35 ppb (4) N/A 9.7 μg/m3 (40) 44.0
 
July 5, 2020, 10 p.m. N/A N/A 3.7 ppb (3) N/A N/A 1.0 ppb (1) 54.0 ppb (42) 0.34 ppb (4) N/A 8.6 μg/m3 (36) 42.0
 
July 5, 2020, 9 p.m. N/A N/A 4.5 ppb (4) N/A N/A 1.0 ppb (1) 57.0 ppb (44) 0.35 ppb (4) N/A 9.9 μg/m3 (41) 44.0
 
July 5, 2020, 8 p.m. N/A N/A 5.7 ppb (5) N/A N/A 1.0 ppb (1) 58.0 ppb (45) 0.38 ppb (4) N/A 11.2 μg/m3 (47) 47.0
 
July 5, 2020, 7 p.m. N/A N/A 4.8 ppb (4) N/A N/A 1.0 ppb (1) 59.0 ppb (45) 0.36 ppb (4) N/A 16.7 μg/m3 (60) 60.0
 
July 5, 2020, 6 p.m. N/A N/A 4.4 ppb (4) N/A N/A 1.0 ppb (1) 60.0 ppb (46) 0.34 ppb (4) N/A 9.1 μg/m3 (38) 46.0
 
July 5, 2020, 5 p.m. N/A N/A 4.4 ppb (4) N/A N/A 1.0 ppb (1) 58.0 ppb (45) 0.34 ppb (4) N/A 10.2 μg/m3 (42) 45.0
 
July 5, 2020, 4 p.m. N/A N/A 4.7 ppb (4) N/A N/A 1.0 ppb (1) 57.0 ppb (44) 0.35 ppb (4) N/A 8.9 μg/m3 (37) 44.0
 
July 5, 2020, 3 p.m. N/A N/A 4.9 ppb (5) N/A N/A 1.0 ppb (1) 53.0 ppb (41) 0.34 ppb (4) N/A 8.7 μg/m3 (36) 41.0
 
July 5, 2020, 2 p.m. N/A N/A 7.4 ppb (7) N/A N/A 1.0 ppb (1) 49.0 ppb (38) 0.36 ppb (4) N/A 14.3 μg/m3 (55) 55.0
 
July 5, 2020, 1 p.m. N/A N/A 14.8 ppb (14) N/A N/A 1.0 ppb (1) 34.0 ppb (26) 0.51 ppb (6) N/A 43.1 μg/m3 (119) 119.0
 
July 5, 2020, noon N/A N/A 13.4 ppb (12) N/A N/A 1.0 ppb (1) 18.0 ppb (14) 0.54 ppb (6) N/A 59.4 μg/m3 (152) 152.0
 
July 5, 2020, 11 a.m. N/A N/A 14.0 ppb (13) N/A N/A 1.0 ppb (1) 8.0 ppb (6) 0.58 ppb (6) N/A 70.2 μg/m3 (158) 158.0
 
July 5, 2020, 10 a.m. N/A N/A 12.8 ppb (12) N/A N/A 1.0 ppb (1) 5.0 ppb (4) 0.59 ppb (7) N/A 78.7 μg/m3 (162) 162.0
 
July 5, 2020, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 6.0 ppb (5) 0.61 ppb (7) N/A 85.3 μg/m3 (166) 166.0
 
July 5, 2020, 8 a.m. N/A N/A 15.4 ppb (14) N/A N/A 1.0 ppb (1) 4.0 ppb (3) N/A N/A 95.8 μg/m3 (171) 171.0
 
July 5, 2020, 7 a.m. N/A N/A 17.9 ppb (17) N/A N/A 1.0 ppb (1) N/A 0.65 ppb (7) N/A 130.6 μg/m3 (190) 190.0
 
July 5, 2020, 6 a.m. N/A N/A 21.0 ppb (19) N/A N/A N/A 7.0 ppb (5) 0.69 ppb (8) N/A 180.3 μg/m3 (230) 230.0
 
July 5, 2020, 5 a.m. N/A N/A 24.4 ppb (23) N/A N/A 2.0 ppb (3) 9.0 ppb (7) 0.73 ppb (8) N/A N/A 23.0
 
June 30, 2020, 6 p.m. N/A N/A 4.1 ppb (4) N/A N/A 1.0 ppb (1) 62.0 ppb (48) 0.44 ppb (5) N/A 7.2 μg/m3 (30) 48.0
 
June 30, 2020, 5 p.m. N/A N/A 4.1 ppb (4) N/A N/A 1.0 ppb (1) 64.0 ppb (49) 0.43 ppb (5) N/A 7.0 μg/m3 (29) 49.0
 
June 30, 2020, 4 p.m. N/A N/A 5.1 ppb (5) N/A N/A 1.0 ppb (1) 61.0 ppb (47) 0.44 ppb (5) N/A 8.3 μg/m3 (35) 47.0
 
June 30, 2020, 3 p.m. N/A N/A 7.2 ppb (7) N/A N/A 1.0 ppb (1) 51.0 ppb (39) 0.47 ppb (5) N/A 7.7 μg/m3 (32) 39.0