ID: 507

AQSQID: 261470005

Site Name: Port Huron

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

Updated: July 9, 2020, 7:34 p.m.

Location: Port Huron (Dove St), MI

Reporting: True, Located: True

Current AQI: 60.0

Port Huron (Dove St) MI, US: 42.9533, -82.4564

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 9, 2020, 5 p.m. N/A N/A N/A N/A N/A 12.0 ppb (17) 72.0 ppb (56) N/A N/A 16.6 μg/m3 (60) 60.0
 
July 9, 2020, 4 p.m. N/A N/A N/A N/A N/A 24.0 ppb (34) 68.0 ppb (52) N/A N/A 19.4 μg/m3 (66) 66.0
 
July 9, 2020, 3 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 62.0 ppb (48) N/A N/A 15.2 μg/m3 (57) 57.0
 
July 9, 2020, 2 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 60.0 ppb (46) N/A N/A 15.1 μg/m3 (57) 57.0
 
July 9, 2020, 1 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 47.0 ppb (36) N/A N/A 16.4 μg/m3 (59) 59.0
 
July 9, 2020, noon N/A N/A N/A N/A N/A 1.0 ppb (1) 34.0 ppb (26) N/A N/A 20.6 μg/m3 (68) 68.0
 
July 9, 2020, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 8.0 ppb (6) N/A N/A 18.0 μg/m3 (63) 63.0
 
July 9, 2020, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 2.0 ppb (2) N/A N/A 14.6 μg/m3 (56) 56.0
 
July 9, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 2.0 ppb (2) N/A N/A 11.9 μg/m3 (50) 50.0
 
July 9, 2020, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 6.0 ppb (5) N/A N/A 9.3 μg/m3 (39) 39.0
 
July 9, 2020, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 11.0 ppb (8) N/A N/A 7.7 μg/m3 (32) 32.0
 
July 9, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 8.0 μg/m3 (33) 33.0
 
July 9, 2020, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 8.7 μg/m3 (36) 36.0
 
July 9, 2020, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 8.3 μg/m3 (35) 35.0
 
July 9, 2020, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 7.8 μg/m3 (32) 32.0
 
July 9, 2020, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 45.0 ppb (35) N/A N/A 12.7 μg/m3 (51) 51.0
 
July 9, 2020, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 48.0 ppb (37) N/A N/A 11.5 μg/m3 (48) 48.0
 
July 9, 2020, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 54.0 ppb (42) N/A N/A 9.6 μg/m3 (40) 42.0
 
July 8, 2020, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 54.0 ppb (42) N/A N/A 11.8 μg/m3 (49) 49.0
 
July 8, 2020, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 54.0 ppb (42) N/A N/A 7.3 μg/m3 (30) 42.0
 
July 8, 2020, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 56.0 ppb (43) N/A N/A 9.8 μg/m3 (41) 43.0
 
July 8, 2020, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 54.0 ppb (42) N/A N/A 7.9 μg/m3 (33) 42.0
 
July 8, 2020, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 43.0 ppb (33) N/A N/A 16.8 μg/m3 (60) 60.0
 
July 8, 2020, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 58.0 ppb (45) N/A N/A 4.0 μg/m3 (17) 45.0
 
July 8, 2020, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 63.0 ppb (48) N/A N/A 14.4 μg/m3 (55) 55.0
 
July 8, 2020, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 61.0 ppb (47) N/A N/A 10.6 μg/m3 (44) 47.0
 
July 8, 2020, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 61.0 ppb (47) N/A N/A 14.1 μg/m3 (54) 54.0
 
July 8, 2020, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 53.0 ppb (41) N/A N/A 14.3 μg/m3 (55) 55.0
 
July 8, 2020, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 46.0 ppb (35) N/A N/A 13.4 μg/m3 (53) 53.0
 
July 8, 2020, noon N/A N/A N/A N/A N/A 2.0 ppb (3) 41.0 ppb (32) N/A N/A 14.4 μg/m3 (55) 55.0
 
July 8, 2020, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 32.0 ppb (25) N/A N/A 13.2 μg/m3 (53) 53.0
 
July 8, 2020, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 14.1 μg/m3 (54) 54.0
 
July 8, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 10.1 μg/m3 (42) 42.0
 
July 8, 2020, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 11.5 μg/m3 (48) 48.0
 
July 8, 2020, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 8.5 μg/m3 (35) 35.0
 
July 8, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 8.6 μg/m3 (36) 36.0
 
July 8, 2020, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 8.6 μg/m3 (36) 36.0
 
July 8, 2020, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 58.0 ppb (45) N/A N/A 12.5 μg/m3 (51) 51.0
 
July 8, 2020, 3 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 57.0 ppb (44) N/A N/A 14.5 μg/m3 (55) 55.0
 
July 8, 2020, 2 a.m. N/A N/A N/A N/A N/A 3.0 ppb (4) 56.0 ppb (43) N/A N/A 9.2 μg/m3 (38) 43.0
 
July 8, 2020, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 39.0 ppb (30) N/A N/A 7.0 μg/m3 (29) 30.0
 
July 8, 2020, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 27.0 ppb (21) N/A N/A 13.3 μg/m3 (53) 53.0
 
July 7, 2020, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 41.0 ppb (32) N/A N/A 11.9 μg/m3 (50) 50.0
 
July 7, 2020, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 50.0 ppb (38) N/A N/A 14.8 μg/m3 (56) 56.0
 
July 7, 2020, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 61.0 ppb (47) N/A N/A 13.5 μg/m3 (53) 53.0
 
July 7, 2020, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 70.0 ppb (54) N/A N/A 12.3 μg/m3 (51) 54.0
 
July 7, 2020, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 66.0 ppb (51) N/A N/A 9.7 μg/m3 (40) 51.0
 
July 7, 2020, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 63.0 ppb (48) N/A N/A 10.4 μg/m3 (43) 48.0
 
July 7, 2020, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 60.0 ppb (46) N/A N/A 10.5 μg/m3 (44) 46.0
 
July 7, 2020, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 57.0 ppb (44) N/A N/A 9.3 μg/m3 (39) 44.0
 
July 7, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A N/A 10.3 μg/m3 (43) 45.0
 
July 7, 2020, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 57.0 ppb (44) N/A N/A 16.7 μg/m3 (60) 60.0
 
July 7, 2020, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 53.0 ppb (41) N/A N/A 12.9 μg/m3 (52) 52.0
 
July 7, 2020, noon N/A N/A N/A N/A N/A 1.0 ppb (1) 41.0 ppb (32) N/A N/A 12.8 μg/m3 (52) 52.0
 
July 7, 2020, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 15.0 ppb (12) N/A N/A 17.4 μg/m3 (61) 61.0
 
July 7, 2020, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 11.0 ppb (8) N/A N/A 15.2 μg/m3 (57) 57.0
 
July 7, 2020, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 19.0 ppb (15) N/A N/A 12.4 μg/m3 (51) 51.0
 
July 7, 2020, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 12.0 μg/m3 (50) 50.0
 
July 7, 2020, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 12.9 μg/m3 (52) 52.0
 
July 7, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 13.0 μg/m3 (52) 52.0
 
July 7, 2020, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 12.7 μg/m3 (51) 51.0
 
July 7, 2020, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 37.0 ppb (28) N/A N/A 14.6 μg/m3 (56) 56.0
 
July 7, 2020, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 44.0 ppb (34) N/A N/A 10.9 μg/m3 (45) 45.0
 
July 7, 2020, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 43.0 ppb (33) N/A N/A 15.0 μg/m3 (56) 56.0
 
July 7, 2020, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 50.0 ppb (38) N/A N/A 13.2 μg/m3 (53) 53.0
 
July 7, 2020, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 63.0 ppb (48) N/A N/A 10.6 μg/m3 (44) 48.0
 
July 6, 2020, 11 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 78.0 ppb (61) N/A N/A 14.2 μg/m3 (55) 61.0
 
July 6, 2020, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 81.0 ppb (63) N/A N/A 12.3 μg/m3 (51) 63.0
 
July 6, 2020, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 69.0 ppb (53) N/A N/A 10.5 μg/m3 (44) 53.0
 
July 6, 2020, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 63.0 ppb (48) N/A N/A 18.6 μg/m3 (64) 64.0
 
July 6, 2020, 7 p.m. N/A N/A N/A N/A N/A 3.0 ppb (4) 70.0 ppb (54) N/A N/A 11.2 μg/m3 (47) 54.0
 
July 6, 2020, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 66.0 ppb (51) N/A N/A 9.3 μg/m3 (39) 51.0
 
July 6, 2020, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 65.0 ppb (50) N/A N/A 9.1 μg/m3 (38) 50.0
 
July 6, 2020, 4 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 67.0 ppb (52) N/A N/A 10.4 μg/m3 (43) 52.0
 
July 6, 2020, 3 p.m. N/A N/A N/A N/A N/A 3.0 ppb (4) 63.0 ppb (48) N/A N/A 13.0 μg/m3 (52) 52.0
 
July 6, 2020, 2 p.m. N/A N/A N/A N/A N/A 3.0 ppb (4) 49.0 ppb (38) N/A N/A 11.6 μg/m3 (48) 48.0
 
July 6, 2020, 1 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 47.0 ppb (36) N/A N/A 12.0 μg/m3 (50) 50.0
 
July 6, 2020, noon N/A N/A N/A N/A N/A 2.0 ppb (3) 38.0 ppb (29) N/A N/A 16.0 μg/m3 (59) 59.0
 
July 6, 2020, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 13.0 ppb (10) N/A N/A 15.9 μg/m3 (58) 58.0
 
July 6, 2020, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 4.0 ppb (3) N/A N/A 18.8 μg/m3 (64) 64.0
 
July 6, 2020, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 12.0 ppb (9) N/A N/A 12.4 μg/m3 (51) 51.0
 
July 6, 2020, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 16.0 ppb (12) N/A N/A 13.0 μg/m3 (52) 52.0
 
July 6, 2020, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 17.0 ppb (13) N/A N/A 11.6 μg/m3 (48) 48.0
 
July 6, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 11.5 μg/m3 (48) 48.0
 
July 6, 2020, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 13.6 μg/m3 (53) 53.0
 
July 6, 2020, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 25.0 ppb (19) N/A N/A 14.7 μg/m3 (56) 56.0
 
July 6, 2020, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 31.0 ppb (24) N/A N/A 23.7 μg/m3 (75) 75.0
 
July 6, 2020, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 32.0 ppb (25) N/A N/A 22.0 μg/m3 (71) 71.0
 
July 6, 2020, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 45.0 ppb (35) N/A N/A 11.8 μg/m3 (49) 49.0
 
July 6, 2020, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 53.0 ppb (41) N/A N/A 7.7 μg/m3 (32) 41.0
 
July 5, 2020, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 60.0 ppb (46) N/A N/A 8.5 μg/m3 (35) 46.0
 
July 5, 2020, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 59.0 ppb (45) N/A N/A 7.4 μg/m3 (31) 45.0
 
July 5, 2020, 9 p.m. N/A N/A N/A N/A N/A 3.0 ppb (4) 64.0 ppb (49) N/A N/A 12.2 μg/m3 (50) 50.0
 
July 5, 2020, 8 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 67.0 ppb (52) N/A N/A 12.5 μg/m3 (51) 52.0
 
July 5, 2020, 7 p.m. N/A N/A N/A N/A N/A 8.0 ppb (11) 68.0 ppb (52) N/A N/A 9.9 μg/m3 (41) 52.0
 
July 5, 2020, 6 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 62.0 ppb (48) N/A N/A 9.6 μg/m3 (40) 48.0
 
July 5, 2020, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 56.0 ppb (43) N/A N/A 9.0 μg/m3 (38) 43.0
 
July 5, 2020, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 50.0 ppb (38) N/A N/A 7.5 μg/m3 (31) 38.0
 
July 5, 2020, 3 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 45.0 ppb (35) N/A N/A 6.8 μg/m3 (28) 35.0
 
July 5, 2020, 2 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 37.0 ppb (28) N/A N/A 2.1 μg/m3 (9) 28.0
 
July 5, 2020, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 25.0 ppb (19) N/A N/A 10.9 μg/m3 (45) 45.0
 
July 5, 2020, noon N/A N/A N/A N/A N/A 1.0 ppb (1) 15.0 ppb (12) N/A N/A 14.4 μg/m3 (55) 55.0
 
July 5, 2020, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 8.0 ppb (6) N/A N/A 23.3 μg/m3 (74) 74.0
 
July 5, 2020, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 5.0 ppb (4) N/A N/A 23.0 μg/m3 (73) 73.0
 
July 5, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 6.0 ppb (5) N/A N/A 23.2 μg/m3 (74) 74.0
 
July 5, 2020, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 9.0 ppb (7) N/A N/A 28.0 μg/m3 (84) 84.0
 
July 5, 2020, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 6.0 ppb (5) N/A N/A 44.4 μg/m3 (122) 122.0
 
July 5, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A N/A 45.7 μg/m3 (126) 126.0
 
July 5, 2020, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 32.1 μg/m3 (93) 93.0
 
July 5, 2020, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 11.0 ppb (8) N/A N/A 34.8 μg/m3 (99) 99.0
 
July 5, 2020, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 15.0 ppb (12) N/A N/A 56.6 μg/m3 (151) 151.0
 
July 5, 2020, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 18.0 ppb (14) N/A N/A 122.8 μg/m3 (185) 185.0
 
July 5, 2020, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 21.5 μg/m3 (70) 70.0
 
July 5, 2020, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 9.1 μg/m3 (38) 38.0
 
July 4, 2020, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 3.6 μg/m3 (15) 24.0
 
July 4, 2020, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 1.2 μg/m3 (5) 25.0
 
July 4, 2020, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 1.6 μg/m3 (7) 23.0
 
July 4, 2020, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 2.0 μg/m3 (8) 25.0
 
July 4, 2020, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 1.6 μg/m3 (7) 25.0
 
July 4, 2020, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A -0.4 μg/m3 (0) 24.0
 
July 4, 2020, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A -0.3 μg/m3 (0) 24.0
 
July 4, 2020, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 4.1 μg/m3 (17) 22.0
 
July 4, 2020, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 5.4 μg/m3 (23) 23.0
 
July 4, 2020, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 8.4 μg/m3 (35) 35.0
 
July 4, 2020, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 6.5 μg/m3 (27) 27.0
 
July 4, 2020, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 8.2 μg/m3 (34) 34.0
 
July 4, 2020, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 14.0 ppb (11) N/A N/A 10.8 μg/m3 (45) 45.0
 
July 4, 2020, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 12.0 ppb (9) N/A N/A 10.9 μg/m3 (45) 45.0
 
July 4, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 14.0 ppb (11) N/A N/A 10.3 μg/m3 (43) 43.0
 
July 4, 2020, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 15.0 ppb (12) N/A N/A 10.3 μg/m3 (43) 43.0
 
July 4, 2020, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 10.0 μg/m3 (42) 42.0
 
July 4, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 12.5 μg/m3 (51) 51.0
 
July 4, 2020, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 12.1 μg/m3 (50) 50.0
 
July 4, 2020, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 11.2 μg/m3 (47) 47.0
 
July 4, 2020, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 15.0 μg/m3 (56) 56.0
 
July 4, 2020, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 26.0 ppb (20) N/A N/A N/A 20.0
 
July 4, 2020, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 16.8 μg/m3 (60) 60.0
 
July 4, 2020, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 12.9 μg/m3 (52) 52.0
 
July 3, 2020, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 12.7 μg/m3 (51) 51.0
 
July 3, 2020, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 10.0 μg/m3 (42) 42.0
 
July 3, 2020, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 7.0 μg/m3 (29) 29.0
 
July 3, 2020, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 43.0 ppb (33) N/A N/A 8.3 μg/m3 (35) 35.0
 
July 3, 2020, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 43.0 ppb (33) N/A N/A 10.9 μg/m3 (45) 45.0
 
July 3, 2020, 6 p.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 3, 2020, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 38.0 ppb (29) N/A N/A 11.9 μg/m3 (50) 50.0
 
July 3, 2020, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 42.0 ppb (32) N/A N/A 11.2 μg/m3 (47) 47.0
 
July 3, 2020, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 12.2 μg/m3 (50) 50.0
 
July 3, 2020, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 14.4 μg/m3 (55) 55.0
 
July 3, 2020, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 12.6 μg/m3 (51) 51.0
 
July 3, 2020, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 13.4 μg/m3 (53) 53.0
 
July 3, 2020, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 23.0 ppb (18) N/A N/A 15.2 μg/m3 (57) 57.0
 
July 3, 2020, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 17.0 ppb (13) N/A N/A 14.7 μg/m3 (56) 56.0
 
July 3, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 12.5 μg/m3 (51) 51.0
 
July 3, 2020, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 34.0 ppb (26) N/A N/A 13.0 μg/m3 (52) 52.0
 
July 3, 2020, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 39.0 ppb (30) N/A N/A 15.8 μg/m3 (58) 58.0
 
July 3, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 16.0 μg/m3 (59) 59.0
 
July 3, 2020, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 13.1 μg/m3 (52) 52.0
 
July 3, 2020, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 12.6 μg/m3 (51) 51.0
 
July 3, 2020, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 17.0 μg/m3 (61) 61.0
 
July 3, 2020, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 19.6 μg/m3 (66) 66.0
 
July 3, 2020, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 15.0 μg/m3 (56) 56.0
 
July 3, 2020, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 12.2 μg/m3 (50) 50.0
 
July 2, 2020, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 8.9 μg/m3 (37) 37.0
 
July 2, 2020, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 44.0 ppb (34) N/A N/A 9.0 μg/m3 (38) 38.0
 
July 2, 2020, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 7.4 μg/m3 (31) 31.0
 
July 2, 2020, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A 6.8 μg/m3 (28) 32.0
 
July 2, 2020, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 45.0 ppb (35) N/A N/A 7.3 μg/m3 (30) 35.0
 
July 2, 2020, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 44.0 ppb (34) N/A N/A 7.0 μg/m3 (29) 34.0