ID: 497

AQSQID: 260810020

Site Name: Grand Rapids

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

Updated: Jan. 17, 2022, 4:33 p.m.

Location: Grand Rapids (Belknap Lookout), MI

Reporting: True, Located: True

Current AQI: 45.0

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
Jan. 17, 2022, 3 p.m. N/A N/A 11.4 ppb (11) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.55 ppb (7) 15.0 μg/m3 (14) 10.6 μg/m3 (45) 45.0
 
Jan. 17, 2022, 2 p.m. N/A N/A 20.1 ppb (19) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.57 ppb (7) 18.0 μg/m3 (17) 13.3 μg/m3 (54) 54.0
 
Jan. 17, 2022, 1 p.m. N/A N/A 15.0 ppb (15) N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.59 ppb (7) 20.0 μg/m3 (19) 15.2 μg/m3 (58) 58.0
 
Jan. 17, 2022, noon N/A N/A 13.7 ppb (13) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.6 ppb (7) 22.0 μg/m3 (21) 17.0 μg/m3 (62) 62.0
 
Jan. 17, 2022, 11 a.m. N/A N/A 12.8 ppb (13) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.61 ppb (7) 28.0 μg/m3 (26) 21.4 μg/m3 (71) 71.0
 
Jan. 17, 2022, 10 a.m. N/A N/A 18.2 ppb (18) N/A N/A 0.0 ppb (0) 18.0 ppb (17) 0.65 ppb (8) 38.0 μg/m3 (36) 24.6 μg/m3 (78) 78.0
 
Jan. 17, 2022, 9 a.m. N/A N/A 21.8 ppb (21) N/A N/A 0.0 ppb (0) 15.0 ppb (14) 0.67 ppb (8) 38.0 μg/m3 (36) 26.2 μg/m3 (81) 81.0
 
Jan. 17, 2022, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 14.0 ppb (13) 0.67 ppb (8) 36.0 μg/m3 (34) 25.7 μg/m3 (80) 80.0
 
Jan. 17, 2022, 7 a.m. N/A N/A 23.0 ppb (22) N/A N/A 0.0 ppb (0) 14.0 ppb (13) N/A 35.0 μg/m3 (33) 25.2 μg/m3 (79) 79.0
 
Jan. 17, 2022, 6 a.m. N/A N/A 20.0 ppb (19) N/A N/A N/A 17.0 ppb (16) 0.65 ppb (8) 36.0 μg/m3 (34) 24.9 μg/m3 (78) 78.0
 
Jan. 17, 2022, 5 a.m. N/A N/A 18.3 ppb (18) N/A N/A 0.0 ppb (0) N/A 0.65 ppb (8) 34.0 μg/m3 (32) 23.3 μg/m3 (75) 75.0
 
Jan. 17, 2022, 4 a.m. N/A N/A 18.5 ppb (18) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.66 ppb (8) 34.0 μg/m3 (32) 22.8 μg/m3 (74) 74.0
 
Jan. 17, 2022, 3 a.m. N/A N/A 19.3 ppb (19) N/A N/A 0.0 ppb (0) 19.0 ppb (18) 0.67 ppb (8) 38.0 μg/m3 (36) 24.4 μg/m3 (77) 77.0
 
Jan. 17, 2022, 2 a.m. N/A N/A 18.4 ppb (18) N/A N/A 1.0 ppb (2) 21.0 ppb (20) 0.65 ppb (8) 36.0 μg/m3 (34) 22.6 μg/m3 (74) 74.0
 
Jan. 17, 2022, 1 a.m. N/A N/A 14.2 ppb (14) N/A N/A 1.0 ppb (2) 24.0 ppb (23) 0.63 ppb (7) 35.0 μg/m3 (33) 20.8 μg/m3 (70) 70.0
 
Jan. 17, 2022, midnight N/A N/A 31.6 ppb (30) N/A N/A 1.0 ppb (2) 12.0 ppb (12) 0.8 ppb (10) 37.0 μg/m3 (35) 18.9 μg/m3 (66) 66.0
 
Jan. 16, 2022, 11 p.m. N/A N/A 29.9 ppb (29) N/A N/A 1.0 ppb (2) 14.0 ppb (13) 0.75 ppb (10) 34.0 μg/m3 (32) 16.6 μg/m3 (61) 61.0
 
Jan. 16, 2022, 10 p.m. N/A N/A 18.0 ppb (17) N/A N/A 1.0 ppb (2) 24.0 ppb (23) 0.63 ppb (7) 25.0 μg/m3 (24) 14.1 μg/m3 (56) 56.0
 
Jan. 16, 2022, 9 p.m. N/A N/A 22.2 ppb (21) N/A N/A 1.0 ppb (2) 22.0 ppb (21) 0.63 ppb (7) 26.0 μg/m3 (25) 14.5 μg/m3 (57) 57.0
 
Jan. 16, 2022, 8 p.m. N/A N/A 21.1 ppb (20) N/A N/A 1.0 ppb (2) 26.0 ppb (25) 0.62 ppb (7) 25.0 μg/m3 (24) 14.0 μg/m3 (55) 55.0
 
Jan. 16, 2022, 7 p.m. N/A N/A 21.2 ppb (20) N/A N/A 1.0 ppb (2) 26.0 ppb (25) 0.62 ppb (7) 28.0 μg/m3 (26) 14.9 μg/m3 (57) 57.0
 
Jan. 16, 2022, 6 p.m. N/A N/A 17.1 ppb (17) N/A N/A 1.0 ppb (2) 26.0 ppb (25) 0.63 ppb (7) 25.0 μg/m3 (24) 15.0 μg/m3 (58) 58.0
 
Jan. 16, 2022, 5 p.m. N/A N/A 20.3 ppb (20) N/A N/A 1.0 ppb (2) 24.0 ppb (23) 0.63 ppb (7) 29.0 μg/m3 (27) 15.1 μg/m3 (58) 58.0
 
Jan. 16, 2022, 4 p.m. N/A N/A 17.4 ppb (17) N/A N/A 1.0 ppb (2) 23.0 ppb (22) 0.61 ppb (7) 26.0 μg/m3 (25) 15.1 μg/m3 (58) 58.0
 
Jan. 16, 2022, 3 p.m. N/A N/A 15.3 ppb (15) N/A N/A 1.0 ppb (2) 21.0 ppb (20) 0.61 ppb (7) 27.0 μg/m3 (25) 15.5 μg/m3 (59) 59.0
 
Jan. 16, 2022, 2 p.m. N/A N/A 15.8 ppb (15) N/A N/A 1.0 ppb (2) 19.0 ppb (18) 0.6 ppb (7) 24.0 μg/m3 (23) 14.7 μg/m3 (57) 57.0
 
Jan. 16, 2022, 1 p.m. N/A N/A 30.8 ppb (30) N/A N/A 0.0 ppb (0) 9.0 ppb (9) 0.66 ppb (8) 23.0 μg/m3 (22) 14.7 μg/m3 (57) 57.0
 
Jan. 16, 2022, noon N/A N/A 41.3 ppb (39) N/A N/A 0.0 ppb (0) 3.0 ppb (3) 0.71 ppb (8) 23.0 μg/m3 (22) 14.4 μg/m3 (56) 56.0
 
Jan. 16, 2022, 11 a.m. N/A N/A 32.7 ppb (31) N/A N/A 0.0 ppb (0) 5.0 ppb (5) 0.7 ppb (8) 23.0 μg/m3 (22) 14.5 μg/m3 (57) 57.0
 
Jan. 16, 2022, 10 a.m. N/A N/A 30.0 ppb (29) N/A N/A 0.0 ppb (0) 6.0 ppb (6) 0.63 ppb (7) 23.0 μg/m3 (22) 14.6 μg/m3 (57) 57.0
 
Jan. 16, 2022, 9 a.m. N/A N/A 28.4 ppb (27) N/A N/A 0.0 ppb (0) 8.0 ppb (8) 0.61 ppb (7) 19.0 μg/m3 (18) 11.8 μg/m3 (50) 50.0
 
Jan. 16, 2022, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 16.0 ppb (15) 0.59 ppb (7) 19.0 μg/m3 (18) 11.0 μg/m3 (46) 46.0
 
Jan. 16, 2022, 7 a.m. N/A N/A 14.5 ppb (14) N/A N/A 0.0 ppb (0) 20.0 ppb (19) N/A 18.0 μg/m3 (17) 10.2 μg/m3 (43) 43.0
 
Jan. 16, 2022, 6 a.m. N/A N/A 8.7 ppb (9) N/A N/A N/A 25.0 ppb (24) 0.52 ppb (6) 16.0 μg/m3 (15) 9.1 μg/m3 (38) 38.0
 
Jan. 16, 2022, 5 a.m. N/A N/A 8.5 ppb (9) N/A N/A 0.0 ppb (0) N/A 0.54 ppb (6) 16.0 μg/m3 (15) 8.2 μg/m3 (35) 35.0
 
Jan. 16, 2022, 4 a.m. N/A N/A 7.7 ppb (8) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.53 ppb (6) 13.0 μg/m3 (13) 7.7 μg/m3 (33) 33.0
 
Jan. 16, 2022, 3 a.m. N/A N/A 12.7 ppb (12) N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.58 ppb (7) 15.0 μg/m3 (14) 8.4 μg/m3 (36) 36.0
 
Jan. 16, 2022, 2 a.m. N/A N/A 9.9 ppb (10) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.55 ppb (7) 15.0 μg/m3 (14) 8.3 μg/m3 (35) 35.0
 
Jan. 16, 2022, 1 a.m. N/A N/A 9.0 ppb (9) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.55 ppb (7) 13.0 μg/m3 (13) 7.7 μg/m3 (33) 33.0
 
Jan. 16, 2022, midnight N/A N/A 9.7 ppb (10) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.57 ppb (7) 14.0 μg/m3 (13) 7.4 μg/m3 (31) 31.0
 
Jan. 15, 2022, 11 p.m. N/A N/A 8.4 ppb (8) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.53 ppb (6) 15.0 μg/m3 (14) 7.8 μg/m3 (33) 33.0
 
Jan. 15, 2022, 10 p.m. N/A N/A 5.7 ppb (6) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.52 ppb (6) 15.0 μg/m3 (14) 6.6 μg/m3 (28) 29.0
 
Jan. 15, 2022, 9 p.m. N/A N/A 4.2 ppb (4) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.5 ppb (6) 12.0 μg/m3 (12) 6.1 μg/m3 (26) 32.0
 
Jan. 15, 2022, 8 p.m. N/A N/A 3.8 ppb (4) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.49 ppb (6) 12.0 μg/m3 (12) 5.8 μg/m3 (25) 32.0
 
Jan. 15, 2022, 7 p.m. N/A N/A 3.5 ppb (4) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.48 ppb (6) 12.0 μg/m3 (12) 5.3 μg/m3 (23) 32.0
 
Jan. 15, 2022, 6 p.m. N/A N/A 4.3 ppb (5) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.51 ppb (6) 11.0 μg/m3 (11) 5.2 μg/m3 (22) 30.0
 
Jan. 15, 2022, 5 p.m. N/A N/A 3.4 ppb (4) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.49 ppb (6) 10.0 μg/m3 (10) 5.1 μg/m3 (22) 30.0
 
Jan. 15, 2022, 4 p.m. N/A N/A 3.9 ppb (4) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.51 ppb (6) 10.0 μg/m3 (10) 5.3 μg/m3 (23) 29.0
 
Jan. 15, 2022, 3 p.m. N/A N/A 4.7 ppb (5) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.51 ppb (6) 10.0 μg/m3 (10) 5.7 μg/m3 (24) 27.0
 
Jan. 15, 2022, 2 p.m. N/A N/A 7.5 ppb (8) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.55 ppb (7) 10.0 μg/m3 (10) 5.5 μg/m3 (23) 25.0
 
Jan. 15, 2022, 1 p.m. N/A N/A 8.7 ppb (9) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.56 ppb (7) 12.0 μg/m3 (12) 7.9 μg/m3 (33) 33.0
 
Jan. 15, 2022, noon N/A N/A 7.6 ppb (8) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.56 ppb (7) 13.0 μg/m3 (13) 9.2 μg/m3 (39) 39.0
 
Jan. 15, 2022, 11 a.m. N/A N/A 9.0 ppb (9) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.57 ppb (7) 13.0 μg/m3 (13) 7.7 μg/m3 (33) 33.0
 
Jan. 15, 2022, 10 a.m. N/A N/A 8.4 ppb (8) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.58 ppb (7) 11.0 μg/m3 (11) 6.9 μg/m3 (29) 29.0
 
Jan. 15, 2022, 9 a.m. N/A N/A 6.4 ppb (7) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.55 ppb (7) 12.0 μg/m3 (12) 8.2 μg/m3 (35) 35.0
 
Jan. 15, 2022, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.54 ppb (6) 9.0 μg/m3 (9) 5.5 μg/m3 (23) 26.0
 
Jan. 15, 2022, 7 a.m. N/A N/A 7.0 ppb (7) N/A N/A 0.0 ppb (0) 28.0 ppb (26) N/A 9.0 μg/m3 (9) 5.3 μg/m3 (23) 26.0
 
Jan. 15, 2022, 6 a.m. N/A N/A 6.4 ppb (7) N/A N/A N/A 29.0 ppb (27) 0.53 ppb (6) 8.0 μg/m3 (8) 4.7 μg/m3 (20) 27.0
 
Jan. 15, 2022, 5 a.m. N/A N/A 5.4 ppb (6) N/A N/A 0.0 ppb (0) N/A 0.51 ppb (6) 8.0 μg/m3 (8) 4.6 μg/m3 (20) 20.0
 
Jan. 15, 2022, 4 a.m. N/A N/A 4.4 ppb (5) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.5 ppb (6) 9.0 μg/m3 (9) 4.5 μg/m3 (19) 28.0
 
Jan. 15, 2022, 3 a.m. N/A N/A 3.9 ppb (4) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.48 ppb (6) 9.0 μg/m3 (9) 4.8 μg/m3 (20) 28.0
 
Jan. 15, 2022, 2 a.m. N/A N/A 3.3 ppb (4) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.48 ppb (6) 10.0 μg/m3 (10) 4.7 μg/m3 (20) 29.0
 
Jan. 15, 2022, 1 a.m. N/A N/A 4.1 ppb (4) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.48 ppb (6) 10.0 μg/m3 (10) 4.7 μg/m3 (20) 28.0
 
Jan. 15, 2022, midnight N/A N/A 5.0 ppb (5) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.49 ppb (6) 11.0 μg/m3 (11) 4.7 μg/m3 (20) 28.0
 
Jan. 14, 2022, 11 p.m. N/A N/A 5.1 ppb (5) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.49 ppb (6) 11.0 μg/m3 (11) 5.1 μg/m3 (22) 29.0
 
Jan. 14, 2022, 10 p.m. N/A N/A 6.3 ppb (6) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.5 ppb (6) 13.0 μg/m3 (13) 5.8 μg/m3 (25) 30.0
 
Jan. 14, 2022, 9 p.m. N/A N/A 7.5 ppb (8) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.52 ppb (6) 13.0 μg/m3 (13) 5.7 μg/m3 (24) 30.0
 
Jan. 14, 2022, 8 p.m. N/A N/A 8.1 ppb (8) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.52 ppb (6) 14.0 μg/m3 (13) 5.5 μg/m3 (23) 29.0
 
Jan. 14, 2022, 7 p.m. N/A N/A 6.9 ppb (7) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.51 ppb (6) 14.0 μg/m3 (13) 4.8 μg/m3 (20) 29.0
 
Jan. 14, 2022, 6 p.m. N/A N/A 7.5 ppb (8) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.51 ppb (6) 14.0 μg/m3 (13) 5.5 μg/m3 (23) 29.0
 
Jan. 14, 2022, 5 p.m. N/A N/A 8.5 ppb (9) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.53 ppb (6) 14.0 μg/m3 (13) 6.0 μg/m3 (25) 27.0
 
Jan. 14, 2022, 4 p.m. N/A N/A 8.4 ppb (8) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.52 ppb (6) 16.0 μg/m3 (15) 6.7 μg/m3 (28) 28.0
 
Jan. 14, 2022, 3 p.m. N/A N/A 9.7 ppb (10) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.56 ppb (7) 15.0 μg/m3 (14) 6.2 μg/m3 (26) 28.0
 
Jan. 14, 2022, 2 p.m. N/A N/A 10.2 ppb (10) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.55 ppb (7) 16.0 μg/m3 (15) 6.1 μg/m3 (26) 29.0
 
Jan. 14, 2022, 1 p.m. N/A N/A 10.5 ppb (10) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.56 ppb (7) 17.0 μg/m3 (16) 6.2 μg/m3 (26) 30.0
 
Jan. 14, 2022, noon N/A N/A 9.9 ppb (10) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.55 ppb (7) 18.0 μg/m3 (17) 6.2 μg/m3 (26) 30.0
 
Jan. 14, 2022, 11 a.m. N/A N/A 8.5 ppb (9) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.54 ppb (6) 16.0 μg/m3 (15) 5.7 μg/m3 (24) 32.0
 
Jan. 14, 2022, 10 a.m. N/A N/A 5.5 ppb (6) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.47 ppb (6) 9.0 μg/m3 (9) 4.5 μg/m3 (19) 32.0
 
Jan. 14, 2022, 9 a.m. N/A N/A 3.7 ppb (4) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.45 ppb (6) 7.0 μg/m3 (7) 4.8 μg/m3 (20) 31.0
 
Jan. 14, 2022, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.49 ppb (6) 6.0 μg/m3 (6) 4.3 μg/m3 (18) 29.0
 
Jan. 14, 2022, 7 a.m. N/A N/A 4.3 ppb (5) N/A N/A 0.0 ppb (0) 30.0 ppb (28) N/A 9.0 μg/m3 (9) 6.7 μg/m3 (28) 28.0
 
Jan. 14, 2022, 6 a.m. N/A N/A 4.4 ppb (5) N/A N/A N/A 30.0 ppb (28) 0.5 ppb (6) 13.0 μg/m3 (13) 9.9 μg/m3 (42) 42.0
 
Jan. 14, 2022, 5 a.m. N/A N/A 6.6 ppb (7) N/A N/A 0.0 ppb (0) N/A 0.54 ppb (6) 17.0 μg/m3 (16) 13.4 μg/m3 (54) 54.0
 
Jan. 14, 2022, 4 a.m. N/A N/A 17.1 ppb (17) N/A N/A 0.0 ppb (0) 17.0 ppb (16) 0.65 ppb (8) 26.0 μg/m3 (25) 20.4 μg/m3 (69) 69.0
 
Jan. 14, 2022, 3 a.m. N/A N/A 24.9 ppb (24) N/A N/A 0.0 ppb (0) 10.0 ppb (10) 0.66 ppb (8) 27.0 μg/m3 (25) 20.4 μg/m3 (69) 69.0
 
Jan. 14, 2022, 2 a.m. N/A N/A 17.6 ppb (17) N/A N/A 0.0 ppb (0) 16.0 ppb (15) 0.59 ppb (7) 26.0 μg/m3 (25) 19.9 μg/m3 (68) 68.0
 
Jan. 14, 2022, 1 a.m. N/A N/A 29.0 ppb (28) N/A N/A 0.0 ppb (0) 8.0 ppb (8) 0.82 ppb (10) 25.0 μg/m3 (24) 20.1 μg/m3 (68) 68.0
 
Jan. 14, 2022, midnight N/A N/A 53.2 ppb (51) N/A N/A 0.0 ppb (0) 1.0 ppb (1) 1.05 ppb (13) 26.0 μg/m3 (25) 20.4 μg/m3 (69) 69.0
 
Jan. 13, 2022, 11 p.m. N/A N/A 37.6 ppb (36) N/A N/A 0.0 ppb (0) 3.0 ppb (3) 0.96 ppb (12) 23.0 μg/m3 (22) 17.6 μg/m3 (63) 63.0
 
Jan. 13, 2022, 10 p.m. N/A N/A 12.3 ppb (12) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.58 ppb (7) 21.0 μg/m3 (20) 15.6 μg/m3 (59) 59.0
 
Jan. 13, 2022, 9 p.m. N/A N/A 14.2 ppb (14) N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.58 ppb (7) 21.0 μg/m3 (20) 15.5 μg/m3 (59) 59.0
 
Jan. 13, 2022, 8 p.m. N/A N/A 11.2 ppb (11) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.53 ppb (6) 21.0 μg/m3 (20) 15.6 μg/m3 (59) 59.0
 
Jan. 13, 2022, 7 p.m. N/A N/A 12.0 ppb (12) N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.53 ppb (6) 22.0 μg/m3 (21) 15.8 μg/m3 (59) 59.0
 
Jan. 13, 2022, 6 p.m. N/A N/A 12.2 ppb (12) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.51 ppb (6) 21.0 μg/m3 (20) 15.2 μg/m3 (58) 58.0
 
Jan. 13, 2022, 5 p.m. N/A N/A 10.2 ppb (10) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.53 ppb (6) 20.0 μg/m3 (19) 15.2 μg/m3 (58) 58.0
 
Jan. 13, 2022, 4 p.m. N/A N/A 8.7 ppb (9) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.52 ppb (6) 18.0 μg/m3 (17) 13.9 μg/m3 (55) 55.0
 
Jan. 13, 2022, 3 p.m. N/A N/A 10.6 ppb (10) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.56 ppb (7) 24.0 μg/m3 (23) 16.1 μg/m3 (60) 60.0
 
Jan. 13, 2022, 2 p.m. N/A N/A 11.6 ppb (11) N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.56 ppb (7) 28.0 μg/m3 (26) 19.0 μg/m3 (66) 66.0
 
Jan. 13, 2022, 1 p.m. N/A N/A 16.4 ppb (16) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.61 ppb (7) 29.0 μg/m3 (27) 19.0 μg/m3 (66) 66.0
 
Jan. 13, 2022, noon N/A N/A 14.9 ppb (15) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.63 ppb (7) 27.0 μg/m3 (25) 18.9 μg/m3 (66) 66.0
 
Jan. 13, 2022, 11 a.m. N/A N/A 10.6 ppb (10) N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.54 ppb (6) 27.0 μg/m3 (25) 20.0 μg/m3 (68) 68.0
 
Jan. 13, 2022, 10 a.m. N/A N/A 14.5 ppb (14) N/A N/A 0.0 ppb (0) 19.0 ppb (18) 0.59 ppb (7) 27.0 μg/m3 (25) 22.6 μg/m3 (74) 74.0
 
Jan. 13, 2022, 9 a.m. N/A N/A 20.6 ppb (20) N/A N/A 0.0 ppb (0) 16.0 ppb (15) 0.57 ppb (7) 24.0 μg/m3 (23) 20.2 μg/m3 (69) 69.0
 
Jan. 13, 2022, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 17.0 ppb (16) 0.56 ppb (7) 20.0 μg/m3 (19) 17.3 μg/m3 (62) 62.0
 
Jan. 13, 2022, 7 a.m. N/A N/A 16.4 ppb (16) N/A N/A 0.0 ppb (0) 19.0 ppb (18) N/A 19.0 μg/m3 (18) 16.0 μg/m3 (60) 60.0
 
Jan. 13, 2022, 6 a.m. N/A N/A 11.3 ppb (11) N/A N/A N/A 26.0 ppb (25) 0.53 ppb (6) 18.0 μg/m3 (17) 15.3 μg/m3 (58) 58.0
 
Jan. 13, 2022, 5 a.m. N/A N/A 10.1 ppb (10) N/A N/A 0.0 ppb (0) N/A 0.5 ppb (6) 17.0 μg/m3 (16) 14.5 μg/m3 (57) 57.0
 
Jan. 13, 2022, 4 a.m. N/A N/A 11.3 ppb (11) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.56 ppb (7) 20.0 μg/m3 (19) 16.7 μg/m3 (61) 61.0
 
Jan. 13, 2022, 3 a.m. N/A N/A 12.2 ppb (12) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.55 ppb (7) 22.0 μg/m3 (21) 19.1 μg/m3 (66) 66.0
 
Jan. 13, 2022, 2 a.m. N/A N/A 17.5 ppb (17) N/A N/A 0.0 ppb (0) 21.0 ppb (20) 0.62 ppb (7) 26.0 μg/m3 (25) 21.5 μg/m3 (71) 71.0
 
Jan. 13, 2022, 1 a.m. N/A N/A 25.4 ppb (24) N/A N/A 0.0 ppb (0) 14.0 ppb (13) 0.76 ppb (10) 25.0 μg/m3 (24) 20.5 μg/m3 (69) 69.0
 
Jan. 13, 2022, midnight N/A N/A 25.9 ppb (25) N/A N/A 0.0 ppb (0) 15.0 ppb (14) 0.7 ppb (8) 22.0 μg/m3 (21) 16.5 μg/m3 (61) 61.0
 
Jan. 12, 2022, 11 p.m. N/A N/A 27.9 ppb (27) N/A N/A 0.0 ppb (0) 14.0 ppb (13) 0.79 ppb (10) 21.0 μg/m3 (20) 14.9 μg/m3 (57) 57.0
 
Jan. 12, 2022, 10 p.m. N/A N/A 31.3 ppb (30) N/A N/A 0.0 ppb (0) 13.0 ppb (13) 0.7 ppb (8) 19.0 μg/m3 (18) 12.2 μg/m3 (52) 52.0
 
Jan. 12, 2022, 9 p.m. N/A N/A 14.9 ppb (15) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.55 ppb (7) 17.0 μg/m3 (16) 11.0 μg/m3 (46) 46.0
 
Jan. 12, 2022, 8 p.m. N/A N/A 11.1 ppb (11) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.5 ppb (6) 16.0 μg/m3 (15) 10.8 μg/m3 (46) 46.0
 
Jan. 12, 2022, 7 p.m. N/A N/A 12.6 ppb (12) N/A N/A 1.0 ppb (2) 30.0 ppb (28) 0.55 ppb (7) 18.0 μg/m3 (17) 11.2 μg/m3 (47) 47.0
 
Jan. 12, 2022, 6 p.m. N/A N/A 15.9 ppb (15) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.51 ppb (6) 18.0 μg/m3 (17) 10.9 μg/m3 (46) 46.0
 
Jan. 12, 2022, 5 p.m. N/A N/A 21.0 ppb (20) N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.54 ppb (6) 20.0 μg/m3 (19) 12.0 μg/m3 (50) 50.0
 
Jan. 12, 2022, 4 p.m. N/A N/A 27.1 ppb (26) N/A N/A 0.0 ppb (0) 19.0 ppb (18) 0.57 ppb (7) 20.0 μg/m3 (19) 12.2 μg/m3 (52) 52.0
 
Jan. 12, 2022, 3 p.m. N/A N/A 25.4 ppb (24) N/A N/A 0.0 ppb (0) 18.0 ppb (17) 0.57 ppb (7) 20.0 μg/m3 (19) 11.4 μg/m3 (48) 48.0
 
Jan. 12, 2022, 2 p.m. N/A N/A 40.2 ppb (38) N/A N/A 0.0 ppb (0) 10.0 ppb (10) 0.64 ppb (7) 22.0 μg/m3 (21) 11.3 μg/m3 (48) 48.0
 
Jan. 12, 2022, 1 p.m. N/A N/A 26.9 ppb (26) N/A N/A 0.0 ppb (0) 12.0 ppb (12) 0.62 ppb (7) 18.0 μg/m3 (17) 10.2 μg/m3 (43) 43.0
 
Jan. 12, 2022, noon N/A N/A 25.8 ppb (25) N/A N/A 0.0 ppb (0) 13.0 ppb (13) 0.61 ppb (7) 18.0 μg/m3 (17) 9.5 μg/m3 (40) 40.0
 
Jan. 12, 2022, 11 a.m. N/A N/A 14.1 ppb (14) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.51 ppb (6) 16.0 μg/m3 (15) 9.0 μg/m3 (38) 38.0
 
Jan. 12, 2022, 10 a.m. N/A N/A 6.7 ppb (7) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.45 ppb (6) 16.0 μg/m3 (15) 8.8 μg/m3 (37) 37.0
 
Jan. 12, 2022, 9 a.m. N/A N/A 6.5 ppb (7) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.44 ppb (5) 20.0 μg/m3 (19) 9.1 μg/m3 (38) 38.0
 
Jan. 12, 2022, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.44 ppb (5) 19.0 μg/m3 (18) 9.2 μg/m3 (39) 39.0
 
Jan. 12, 2022, 7 a.m. N/A N/A 8.2 ppb (8) N/A N/A 0.0 ppb (0) 22.0 ppb (21) N/A 20.0 μg/m3 (19) 11.2 μg/m3 (47) 47.0
 
Jan. 12, 2022, 6 a.m. N/A N/A 7.7 ppb (8) N/A N/A N/A 21.0 ppb (20) 0.46 ppb (6) 19.0 μg/m3 (18) 11.2 μg/m3 (47) 47.0
 
Jan. 12, 2022, 5 a.m. N/A N/A 7.6 ppb (8) N/A N/A 1.0 ppb (2) N/A 0.46 ppb (6) 17.0 μg/m3 (16) 10.9 μg/m3 (46) 46.0
 
Jan. 12, 2022, 4 a.m. N/A N/A 7.4 ppb (7) N/A N/A 1.0 ppb (2) 23.0 ppb (22) 0.46 ppb (6) 16.0 μg/m3 (15) 10.4 μg/m3 (44) 44.0
 
Jan. 12, 2022, 3 a.m. N/A N/A 8.4 ppb (8) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.47 ppb (6) 17.0 μg/m3 (16) 9.1 μg/m3 (38) 38.0
 
Jan. 12, 2022, 2 a.m. N/A N/A 9.1 ppb (9) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.47 ppb (6) 18.0 μg/m3 (17) 7.9 μg/m3 (33) 33.0
 
Jan. 12, 2022, 1 a.m. N/A N/A 14.5 ppb (14) N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.49 ppb (6) 21.0 μg/m3 (20) 9.7 μg/m3 (41) 41.0
 
Jan. 12, 2022, midnight N/A N/A 14.7 ppb (14) N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.49 ppb (6) 22.0 μg/m3 (21) 11.0 μg/m3 (46) 46.0
 
Jan. 11, 2022, 11 p.m. N/A N/A 14.3 ppb (14) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.49 ppb (6) 27.0 μg/m3 (25) 11.3 μg/m3 (48) 48.0
 
Jan. 11, 2022, 10 p.m. N/A N/A 20.9 ppb (20) N/A N/A 0.0 ppb (0) 21.0 ppb (20) 0.54 ppb (6) 34.0 μg/m3 (32) 12.3 μg/m3 (52) 52.0
 
Jan. 11, 2022, 9 p.m. N/A N/A 13.7 ppb (13) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.52 ppb (6) 27.0 μg/m3 (25) 11.6 μg/m3 (49) 49.0
 
Jan. 11, 2022, 8 p.m. N/A N/A 11.2 ppb (11) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.49 ppb (6) 29.0 μg/m3 (27) 11.6 μg/m3 (49) 49.0
 
Jan. 11, 2022, 7 p.m. N/A N/A 14.4 ppb (14) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.49 ppb (6) 24.0 μg/m3 (23) 10.5 μg/m3 (44) 44.0
 
Jan. 11, 2022, 6 p.m. N/A N/A 11.6 ppb (11) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.46 ppb (6) 24.0 μg/m3 (23) 9.4 μg/m3 (40) 40.0
 
Jan. 11, 2022, 5 p.m. N/A N/A 9.7 ppb (10) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.46 ppb (6) 25.0 μg/m3 (24) 9.6 μg/m3 (40) 40.0
 
Jan. 11, 2022, 4 p.m. N/A N/A 13.2 ppb (13) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.48 ppb (6) 22.0 μg/m3 (21) 11.0 μg/m3 (46) 46.0
 
Jan. 11, 2022, 3 p.m. N/A N/A 23.1 ppb (22) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.5 ppb (6) 21.0 μg/m3 (20) 10.4 μg/m3 (44) 44.0
 
Jan. 11, 2022, 2 p.m. N/A N/A 25.4 ppb (24) N/A N/A 0.0 ppb (0) 18.0 ppb (17) 0.52 ppb (6) 24.0 μg/m3 (23) 9.1 μg/m3 (38) 38.0
 
Jan. 11, 2022, 1 p.m. N/A N/A 18.3 ppb (18) N/A N/A 0.0 ppb (0) 21.0 ppb (20) 0.55 ppb (7) 23.0 μg/m3 (22) 7.8 μg/m3 (33) 33.0
 
Jan. 11, 2022, noon N/A N/A 14.7 ppb (14) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.54 ppb (6) 35.0 μg/m3 (33) 7.8 μg/m3 (33) 33.0
 
Jan. 11, 2022, 11 a.m. N/A N/A 10.4 ppb (10) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.49 ppb (6) 33.0 μg/m3 (31) 7.1 μg/m3 (30) 31.0
 
Jan. 11, 2022, 10 a.m. N/A N/A 9.1 ppb (9) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.44 ppb (5) 29.0 μg/m3 (27) 6.7 μg/m3 (28) 28.0
 
Jan. 11, 2022, 9 a.m. N/A N/A 10.8 ppb (11) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.47 ppb (6) 14.0 μg/m3 (13) 6.4 μg/m3 (27) 27.0
 
Jan. 11, 2022, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.49 ppb (6) 14.0 μg/m3 (13) 6.2 μg/m3 (26) 26.0
 
Jan. 11, 2022, 7 a.m. N/A N/A 5.7 ppb (6) N/A N/A 0.0 ppb (0) 32.0 ppb (30) N/A 12.0 μg/m3 (12) 5.2 μg/m3 (22) 30.0
 
Jan. 11, 2022, 6 a.m. N/A N/A 5.0 ppb (5) N/A N/A N/A 32.0 ppb (30) 0.42 ppb (5) 12.0 μg/m3 (12) 5.0 μg/m3 (21) 30.0
 
Jan. 11, 2022, 5 a.m. N/A N/A 5.6 ppb (6) N/A N/A 0.0 ppb (0) N/A 0.43 ppb (5) 12.0 μg/m3 (12) 5.3 μg/m3 (23) 23.0
 
Jan. 11, 2022, 4 a.m. N/A N/A 4.8 ppb (5) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.44 ppb (5) 10.0 μg/m3 (10) 5.7 μg/m3 (24) 30.0
 
Jan. 11, 2022, 3 a.m. N/A N/A 4.2 ppb (4) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.43 ppb (5) 10.0 μg/m3 (10) 5.8 μg/m3 (25) 31.0
 
Jan. 11, 2022, 2 a.m. N/A N/A 4.8 ppb (5) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.44 ppb (5) 11.0 μg/m3 (11) 5.8 μg/m3 (25) 30.0
 
Jan. 11, 2022, 1 a.m. N/A N/A 4.5 ppb (5) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.43 ppb (5) 13.0 μg/m3 (13) 5.8 μg/m3 (25) 31.0
 
Jan. 11, 2022, midnight N/A N/A 3.9 ppb (4) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.42 ppb (5) 14.0 μg/m3 (13) 5.2 μg/m3 (22) 32.0
 
Jan. 10, 2022, 11 p.m. N/A N/A 5.3 ppb (5) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.43 ppb (5) 17.0 μg/m3 (16) 5.6 μg/m3 (24) 32.0
 
Jan. 10, 2022, 10 p.m. N/A N/A 6.7 ppb (7) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.45 ppb (6) 18.0 μg/m3 (17) 5.7 μg/m3 (24) 31.0
 
Jan. 10, 2022, 9 p.m. N/A N/A 6.6 ppb (7) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.44 ppb (5) 20.0 μg/m3 (19) 6.1 μg/m3 (26) 31.0
 
Jan. 10, 2022, 8 p.m. N/A N/A 6.2 ppb (6) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.44 ppb (5) 31.0 μg/m3 (29) 7.4 μg/m3 (31) 31.0
 
Jan. 10, 2022, 7 p.m. N/A N/A 6.3 ppb (6) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.44 ppb (5) 20.0 μg/m3 (19) 7.4 μg/m3 (31) 31.0
 
Jan. 10, 2022, 6 p.m. N/A N/A 6.5 ppb (7) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.43 ppb (5) 17.0 μg/m3 (16) 7.1 μg/m3 (30) 31.0
 
Jan. 10, 2022, 5 p.m. N/A N/A 6.9 ppb (7) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.43 ppb (5) 18.0 μg/m3 (17) 6.7 μg/m3 (28) 31.0
 
Jan. 10, 2022, 4 p.m. N/A N/A 7.5 ppb (8) N/A N/A N/A 33.0 ppb (31) 0.43 ppb (5) 20.0 μg/m3 (19) 7.8 μg/m3 (33) 33.0