AQSQID: 461030020

Site Name: Credit Union

Location: Rapid City (W Chicago St), SD

Reporting: True, Located: True

Current AQI: 18.0

Rapid City (W Chicago St) SD, US: 44.087397, -103.273777

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 25, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 4.4 μg/m3 (18) 18.0
 
Jan. 25, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 4.4 μg/m3 (18) 18.0
 
Jan. 25, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 3.9 μg/m3 (16) 16.0
 
Jan. 25, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 4.9 μg/m3 (20) 20.0
 
Jan. 25, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 5.9 μg/m3 (25) 25.0
 
Jan. 25, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 5.6 μg/m3 (23) 23.0
 
Jan. 25, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 6.3 μg/m3 (26) 26.0
 
Jan. 25, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 40.0 μg/m3 (36) 9.7 μg/m3 (40) 40.0
 
Jan. 25, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 61.0 μg/m3 (53) 7.1 μg/m3 (30) 53.0
 
Jan. 25, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 62.0 μg/m3 (54) 9.5 μg/m3 (40) 54.0
 
Jan. 24, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 39.0 μg/m3 (35) 5.9 μg/m3 (25) 35.0
 
Jan. 24, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 31.0 μg/m3 (28) -0.9 μg/m3 (0) 28.0
 
Jan. 24, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) -1.4 μg/m3 (0) 20.0
 
Jan. 24, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 3.2 μg/m3 (13) 17.0
 
Jan. 24, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 38.0 μg/m3 (35) 7.3 μg/m3 (30) 35.0
 
Jan. 24, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 71.0 μg/m3 (58) 9.7 μg/m3 (40) 58.0
 
Jan. 24, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 55.0 μg/m3 (50) 9.7 μg/m3 (40) 50.0
 
Jan. 24, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 5.1 μg/m3 (21) 21.0
 
Jan. 24, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 59.0 μg/m3 (52) 5.1 μg/m3 (21) 52.0
 
Jan. 24, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 2.7 μg/m3 (11) 15.0
 
Jan. 24, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 2.2 μg/m3 (9) 10.0
 
Jan. 24, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 2.7 μg/m3 (11) 11.0
 
Jan. 24, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) -1.4 μg/m3 (0) 2.0
 
Jan. 24, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) -2.1 μg/m3 (0) 2.0
 
Jan. 24, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 1.7 μg/m3 (7) 7.0
 
Jan. 24, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 50.0 μg/m3 (45) 3.9 μg/m3 (16) 45.0
 
Jan. 24, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 3.4 μg/m3 (14) 14.0
 
Jan. 24, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 5.6 μg/m3 (23) 25.0
 
Jan. 24, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 79.0 μg/m3 (62) 7.4 μg/m3 (31) 62.0
 
Jan. 24, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 5.6 μg/m3 (23) 23.0
 
Jan. 24, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 4.4 μg/m3 (18) 18.0
 
Jan. 24, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 2.9 μg/m3 (12) 12.0
 
Jan. 24, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.4 μg/m3 (23) 23.0
 
Jan. 24, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 99.0 μg/m3 (72) 5.4 μg/m3 (23) 72.0
 
Jan. 23, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 59.0 μg/m3 (52) 3.2 μg/m3 (13) 52.0
 
Jan. 23, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 72.0 μg/m3 (58) 3.7 μg/m3 (15) 58.0
 
Jan. 23, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 87.0 μg/m3 (66) 1.0 μg/m3 (4) 66.0
 
Jan. 23, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 42.0 μg/m3 (38) 1.5 μg/m3 (6) 38.0
 
Jan. 23, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 93.0 μg/m3 (69) 3.0 μg/m3 (12) 69.0
 
Jan. 23, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 99.0 μg/m3 (72) 3.2 μg/m3 (13) 72.0
 
Jan. 23, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 114.0 μg/m3 (80) 4.1 μg/m3 (17) 80.0
 
Jan. 23, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 69.0 μg/m3 (57) 1.0 μg/m3 (4) 57.0
 
Jan. 23, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (27) 1.7 μg/m3 (7) 27.0
 
Jan. 23, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 1.5 μg/m3 (6) 25.0
 
Jan. 23, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 1.2 μg/m3 (5) 11.0
 
Jan. 23, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) -0.9 μg/m3 (0) 3.0
 
Jan. 23, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 1.2 μg/m3 (5) 5.0
 
Jan. 23, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) -1.1 μg/m3 (0) 4.0
 
Jan. 23, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) -1.9 μg/m3 (0) 3.0
 
Jan. 23, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (1) 1.7 μg/m3 (7) 7.0
 
Jan. 23, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 2.4 μg/m3 (10) 10.0
 
Jan. 23, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 1.0 μg/m3 (4) 4.0
 
Jan. 23, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 0.5 μg/m3 (2) 2.0
 
Jan. 23, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 0.7 μg/m3 (3) 3.0
 
Jan. 23, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 1.5 μg/m3 (6) 6.0
 
Jan. 23, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 1.5 μg/m3 (6) 6.0
 
Jan. 23, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) -0.6 μg/m3 (0) 10.0
 
Jan. 23, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 1.0 μg/m3 (4) 11.0
 
Jan. 22, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 2.9 μg/m3 (12) 13.0
 
Jan. 22, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 1.7 μg/m3 (7) 10.0
 
Jan. 22, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) -0.4 μg/m3 (0) 15.0
 
Jan. 22, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 1.0 μg/m3 (4) 10.0
 
Jan. 22, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 59.0 μg/m3 (52) 5.4 μg/m3 (23) 52.0
 
Jan. 22, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.7 μg/m3 (45) 45.0
 
Jan. 22, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.2 μg/m3 (50) 50.0
 
Jan. 22, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 5.4 μg/m3 (23) 23.0
 
Jan. 22, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 1.9 μg/m3 (8) 8.0
 
Jan. 22, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 2.2 μg/m3 (9) 9.0
 
Jan. 22, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 3.7 μg/m3 (15) 15.0
 
Jan. 22, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 48.0 μg/m3 (44) 4.6 μg/m3 (19) 44.0
 
Jan. 22, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 48.0 μg/m3 (44) 7.3 μg/m3 (30) 44.0
 
Jan. 22, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 48.0 μg/m3 (44) 6.8 μg/m3 (28) 44.0
 
Jan. 22, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 6.1 μg/m3 (25) 25.0
 
Jan. 22, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 65.0 μg/m3 (55) 5.6 μg/m3 (23) 55.0
 
Jan. 22, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (22) 5.9 μg/m3 (25) 25.0
 
Jan. 22, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 91.0 μg/m3 (68) 9.5 μg/m3 (40) 68.0
 
Jan. 22, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (27) 6.1 μg/m3 (25) 27.0
 
Jan. 22, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (31) 15.4 μg/m3 (57) 57.0
 
Jan. 22, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 57.0 μg/m3 (51) 18.9 μg/m3 (65) 65.0
 
Jan. 22, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 58.0 μg/m3 (52) 13.1 μg/m3 (52) 52.0
 
Jan. 22, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 57.0 μg/m3 (51) 9.1 μg/m3 (38) 51.0
 
Jan. 22, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 79.0 μg/m3 (62) 13.2 μg/m3 (53) 62.0
 
Jan. 21, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 60.0 μg/m3 (52) 6.1 μg/m3 (25) 52.0
 
Jan. 21, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 79.0 μg/m3 (62) 7.6 μg/m3 (32) 62.0
 
Jan. 21, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 43.0 μg/m3 (39) 5.1 μg/m3 (21) 39.0
 
Jan. 21, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 53.0 μg/m3 (48) 4.4 μg/m3 (18) 48.0
 
Jan. 21, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 1.5 μg/m3 (6) 6.0
 
Jan. 21, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (21) 2.0 μg/m3 (8) 21.0
 
Jan. 21, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (26) 1.5 μg/m3 (6) 26.0
 
Jan. 21, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (24) 1.9 μg/m3 (8) 24.0
 
Jan. 21, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (31) 3.7 μg/m3 (15) 31.0
 
Jan. 21, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 4.9 μg/m3 (20) 25.0
 
Jan. 21, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 1.5 μg/m3 (6) 16.0
 
Jan. 21, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 1.2 μg/m3 (5) 16.0
 
Jan. 21, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 2.2 μg/m3 (9) 9.0
 
Jan. 21, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) -1.6 μg/m3 (0) 11.0
 
Jan. 21, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) -1.4 μg/m3 (0) 10.0
 
Jan. 21, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 4.4 μg/m3 (18) 18.0
 
Jan. 21, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 9.5 μg/m3 (40) 40.0
 
Jan. 21, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 5.4 μg/m3 (23) 23.0
 
Jan. 21, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (21) 7.1 μg/m3 (30) 30.0
 
Jan. 21, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 5.9 μg/m3 (25) 25.0
 
Jan. 21, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 3.4 μg/m3 (14) 16.0
 
Jan. 21, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (23) 5.4 μg/m3 (23) 23.0
 
Jan. 21, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (29) 7.4 μg/m3 (31) 31.0
 
Jan. 21, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (29) 7.1 μg/m3 (30) 30.0
 
Jan. 20, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 6.1 μg/m3 (25) 25.0
 
Jan. 20, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 2.4 μg/m3 (10) 18.0
 
Jan. 20, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) -2.1 μg/m3 (0) 16.0
 
Jan. 20, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 0.0 μg/m3 (0) 12.0
 
Jan. 20, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 4.6 μg/m3 (19) 19.0
 
Jan. 20, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (31) 7.6 μg/m3 (32) 32.0
 
Jan. 20, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 39.0 μg/m3 (35) 13.2 μg/m3 (53) 53.0
 
Jan. 20, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 43.0 μg/m3 (39) 15.2 μg/m3 (57) 57.0
 
Jan. 20, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (29) 9.5 μg/m3 (40) 40.0
 
Jan. 20, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (23) 9.1 μg/m3 (38) 38.0
 
Jan. 20, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 6.9 μg/m3 (29) 29.0
 
Jan. 20, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 5.6 μg/m3 (23) 23.0
 
Jan. 20, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 4.2 μg/m3 (18) 18.0
 
Jan. 20, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 46.0 μg/m3 (42) 16.9 μg/m3 (60) 60.0
 
Jan. 20, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 46.0 μg/m3 (42) 7.1 μg/m3 (30) 42.0
 
Jan. 20, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 19.6 μg/m3 (66) 66.0
 
Jan. 20, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 6.8 μg/m3 (28) 28.0
 
Jan. 20, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 6.8 μg/m3 (28) 28.0
 
Jan. 20, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 5.1 μg/m3 (21) 21.0
 
Jan. 20, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 5.8 μg/m3 (24) 24.0
 
Jan. 20, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 8.3 μg/m3 (35) 35.0
 
Jan. 20, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (21) 10.2 μg/m3 (42) 42.0
 
Jan. 20, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (25) 3.2 μg/m3 (13) 25.0
 
Jan. 20, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 20.1 μg/m3 (67) 67.0
 
Jan. 19, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (21) 7.1 μg/m3 (30) 30.0
 
Jan. 19, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 6.4 μg/m3 (27) 27.0
 
Jan. 19, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 6.4 μg/m3 (27) 27.0
 
Jan. 19, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 8.1 μg/m3 (34) 34.0
 
Jan. 19, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 5.6 μg/m3 (23) 23.0
 
Jan. 19, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 7.1 μg/m3 (30) 30.0
 
Jan. 19, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 5.6 μg/m3 (23) 23.0
 
Jan. 19, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 6.4 μg/m3 (27) 27.0
 
Jan. 19, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 8.8 μg/m3 (37) 37.0
 
Jan. 19, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 9.3 μg/m3 (39) 39.0
 
Jan. 19, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) 9.3 μg/m3 (39) 39.0
 
Jan. 19, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 40.0 μg/m3 (36) 12.2 μg/m3 (50) 50.0
 
Jan. 19, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) 6.1 μg/m3 (25) 25.0
 
Jan. 19, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 6.8 μg/m3 (28) 28.0
 
Jan. 19, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 10.0 μg/m3 (42) 42.0
 
Jan. 19, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 9.7 μg/m3 (40) 40.0
 
Jan. 19, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (24) 8.1 μg/m3 (34) 34.0
 
Jan. 19, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (29) 13.6 μg/m3 (53) 53.0
 
Jan. 19, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 41.0 μg/m3 (37) 22.8 μg/m3 (73) 73.0
 
Jan. 19, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (31) 16.4 μg/m3 (59) 59.0
 
Jan. 19, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 95.0 μg/m3 (70) 17.4 μg/m3 (61) 70.0
 
Jan. 19, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 44.0 μg/m3 (40) 10.2 μg/m3 (42) 42.0
 
Jan. 19, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (29) 12.0 μg/m3 (50) 50.0
 
Jan. 19, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (22) 7.8 μg/m3 (32) 32.0
 
Jan. 18, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 5.6 μg/m3 (23) 23.0
 
Jan. 18, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 8.8 μg/m3 (37) 37.0
 
Jan. 18, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (31) 9.1 μg/m3 (38) 38.0
 
Jan. 18, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 44.0 μg/m3 (40) 10.7 μg/m3 (45) 45.0
 
Jan. 18, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (24) 8.3 μg/m3 (35) 35.0
 
Jan. 18, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.1 μg/m3 (30) 30.0
 
Jan. 18, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 0.7 μg/m3 (3) 7.0
 
Jan. 18, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 0.2 μg/m3 (1) 5.0
 
Jan. 18, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 3.7 μg/m3 (15) 15.0
 
Jan. 18, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 2.7 μg/m3 (11) 11.0
 
Jan. 18, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 4.4 μg/m3 (18) 18.0
 
Jan. 18, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 2.4 μg/m3 (10) 10.0
 
Jan. 18, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 1.9 μg/m3 (8) 8.0
 
Jan. 18, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) -0.9 μg/m3 (0) 15.0