AQSQID: 295100093

Site Name: Branch Street

Location: St. Louis, MO

Reporting: True, Located: True

Current AQI: 52.0

St. Louis MO, US: 38.65643, -90.18977

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 25, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 13.0 μg/m3 (52) 52.0
 
March 25, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 12.2 μg/m3 (50) 50.0
 
March 25, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 10.8 μg/m3 (45) 45.0
 
March 25, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 12.3 μg/m3 (51) 51.0
 
March 25, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 15.0 μg/m3 (56) 56.0
 
March 25, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 14.6 μg/m3 (56) 56.0
 
March 25, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 10.8 μg/m3 (45) 45.0
 
March 25, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 10.2 μg/m3 (42) 42.0
 
March 25, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 11.8 μg/m3 (49) 49.0
 
March 25, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 11.5 μg/m3 (48) 48.0
 
March 25, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 10.3 μg/m3 (43) 43.0
 
March 25, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (22) 17.1 μg/m3 (61) 61.0
 
March 24, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) 18.8 μg/m3 (64) 64.0
 
March 24, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (21) 16.5 μg/m3 (60) 60.0
 
March 24, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 14.7 μg/m3 (56) 56.0
 
March 24, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 14.6 μg/m3 (56) 56.0
 
March 24, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 13.7 μg/m3 (54) 54.0
 
March 24, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 17.0 μg/m3 (61) 61.0
 
March 24, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 15.6 μg/m3 (58) 58.0
 
March 24, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 14.0 μg/m3 (54) 54.0
 
March 24, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 19.1 μg/m3 (65) 65.0
 
March 24, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 19.9 μg/m3 (67) 67.0
 
March 24, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 20.5 μg/m3 (68) 68.0
 
March 24, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 19.0 μg/m3 (65) 65.0
 
March 24, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 18.6 μg/m3 (64) 64.0
 
March 24, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 19.9 μg/m3 (67) 67.0
 
March 24, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 15.1 μg/m3 (57) 57.0
 
March 24, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 19.9 μg/m3 (67) 67.0
 
March 24, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 21.8 μg/m3 (71) 71.0
 
March 24, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 24.8 μg/m3 (77) 77.0
 
March 24, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (22) 26.7 μg/m3 (81) 81.0
 
March 24, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 14.8 μg/m3 (56) 56.0
 
March 24, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 13.2 μg/m3 (53) 53.0
 
March 24, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 12.5 μg/m3 (51) 51.0
 
March 24, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (24) 14.6 μg/m3 (56) 56.0
 
March 24, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 45.0 μg/m3 (41) 14.6 μg/m3 (56) 56.0
 
March 23, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 11.4 μg/m3 (48) 48.0
 
March 23, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 10.6 μg/m3 (44) 44.0
 
March 23, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 13.9 μg/m3 (54) 54.0
 
March 23, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (22) 11.0 μg/m3 (46) 46.0
 
March 23, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 72.0 μg/m3 (58) 11.8 μg/m3 (49) 58.0
 
March 23, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 35.0 μg/m3 (32) 9.4 μg/m3 (39) 39.0
 
March 23, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (31) 7.3 μg/m3 (30) 31.0
 
March 23, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 39.0 μg/m3 (35) 6.5 μg/m3 (27) 35.0
 
March 23, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 31.0 μg/m3 (28) 8.0 μg/m3 (33) 33.0
 
March 23, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 6.8 μg/m3 (28) 28.0
 
March 23, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 5.7 μg/m3 (24) 24.0
 
March 23, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 5.7 μg/m3 (24) 24.0
 
March 23, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 9.8 μg/m3 (41) 41.0
 
March 23, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 5.8 μg/m3 (24) 24.0
 
March 23, 2019, 9 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
 
March 23, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 6.5 μg/m3 (27) 27.0
 
March 23, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 6.1 μg/m3 (25) 25.0
 
March 23, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 7.7 μg/m3 (32) 32.0
 
March 23, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 7.5 μg/m3 (31) 31.0
 
March 23, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 7.7 μg/m3 (32) 32.0
 
March 23, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 8.7 μg/m3 (36) 36.0
 
March 23, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 8.7 μg/m3 (36) 36.0
 
March 23, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 7.3 μg/m3 (30) 30.0
 
March 23, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 4.2 μg/m3 (18) 18.0
 
March 22, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 3.9 μg/m3 (16) 16.0
 
March 22, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 5.4 μg/m3 (23) 23.0
 
March 22, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 2.2 μg/m3 (9) 15.0
 
March 22, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 45.0 μg/m3 (41) 3.8 μg/m3 (16) 41.0
 
March 22, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 5.2 μg/m3 (22) 25.0
 
March 22, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 7.7 μg/m3 (32) 32.0
 
March 22, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 7.8 μg/m3 (32) 32.0
 
March 22, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 60.0 μg/m3 (52) 12.0 μg/m3 (50) 52.0
 
March 22, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 37.0 μg/m3 (34) 7.7 μg/m3 (32) 34.0
 
March 22, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (23) 7.6 μg/m3 (32) 32.0
 
March 22, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (23) 6.9 μg/m3 (29) 29.0
 
March 22, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) 3.7 μg/m3 (15) 20.0
 
March 22, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 6.9 μg/m3 (29) 29.0
 
March 22, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.8 μg/m3 (12) 12.0
 
March 22, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 3.4 μg/m3 (14) 14.0
 
March 22, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 2.7 μg/m3 (11) 11.0
 
March 22, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 6.0 μg/m3 (25) 25.0
 
March 22, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (25) 7.4 μg/m3 (31) 31.0
 
March 22, 2019, 5 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
 
March 22, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) 12.5 μg/m3 (51) 51.0
 
March 22, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) 9.0 μg/m3 (38) 38.0
 
March 22, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (25) 7.9 μg/m3 (33) 33.0
 
March 22, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 4.9 μg/m3 (20) 20.0
 
March 22, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 2.0 μg/m3 (8) 8.0
 
March 21, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 4.3 μg/m3 (18) 18.0
 
March 21, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 3.6 μg/m3 (15) 15.0
 
March 21, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 7.9 μg/m3 (33) 33.0
 
March 21, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 35.0 μg/m3 (32) 5.2 μg/m3 (22) 32.0
 
March 21, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (24) 1.8 μg/m3 (8) 24.0
 
March 21, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (21) 4.5 μg/m3 (19) 21.0
 
March 21, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 39.0 μg/m3 (35) 6.6 μg/m3 (28) 35.0
 
March 21, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 62.0 μg/m3 (54) 7.3 μg/m3 (30) 54.0
 
March 21, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 49.0 μg/m3 (45) 12.1 μg/m3 (50) 50.0
 
March 21, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 50.0 μg/m3 (45) 10.8 μg/m3 (45) 45.0
 
March 21, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 50.0 μg/m3 (45) 11.4 μg/m3 (48) 48.0
 
March 21, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (26) 9.1 μg/m3 (38) 38.0
 
March 21, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (23) 8.2 μg/m3 (34) 34.0
 
March 21, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 5.5 μg/m3 (23) 23.0
 
March 21, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
March 21, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 7.8 μg/m3 (32) 32.0
 
March 21, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 10.1 μg/m3 (42) 42.0
 
March 21, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 12.0 μg/m3 (50) 50.0
 
March 21, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 10.4 μg/m3 (43) 43.0
 
March 21, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 10.8 μg/m3 (45) 45.0
 
March 21, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 9.9 μg/m3 (41) 41.0
 
March 21, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 10.7 μg/m3 (45) 45.0
 
March 21, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 9.8 μg/m3 (41) 41.0
 
March 21, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 5.7 μg/m3 (24) 24.0
 
March 20, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 10.3 μg/m3 (43) 43.0
 
March 20, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 10.8 μg/m3 (45) 45.0
 
March 20, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 11.4 μg/m3 (48) 48.0
 
March 20, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 31.0 μg/m3 (28) 9.0 μg/m3 (38) 38.0
 
March 20, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (24) 13.3 μg/m3 (53) 53.0
 
March 20, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 33.0 μg/m3 (30) 0.0 μg/m3 (0) 30.0
 
March 20, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
March 20, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
March 20, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (27) 12.3 μg/m3 (51) 51.0
 
March 20, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (23) 11.0 μg/m3 (46) 46.0
 
March 20, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 9.2 μg/m3 (38) 38.0
 
March 20, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 11.0 μg/m3 (46) 46.0
 
March 20, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) 12.9 μg/m3 (52) 52.0
 
March 20, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 45.0 μg/m3 (41) 12.1 μg/m3 (50) 50.0
 
March 20, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 95.0 μg/m3 (70) 10.4 μg/m3 (43) 70.0
 
March 20, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 41.0 μg/m3 (37) 12.9 μg/m3 (52) 52.0
 
March 20, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 52.0 μg/m3 (47) 7.0 μg/m3 (29) 47.0
 
March 20, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 37.0 μg/m3 (34) 10.6 μg/m3 (44) 44.0
 
March 20, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (31) 10.1 μg/m3 (42) 42.0
 
March 20, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (27) 10.3 μg/m3 (43) 43.0
 
March 20, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 11.2 μg/m3 (47) 47.0
 
March 20, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) 11.9 μg/m3 (50) 50.0
 
March 20, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 64.0 μg/m3 (54) 17.4 μg/m3 (61) 61.0
 
March 20, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 57.0 μg/m3 (51) 8.9 μg/m3 (37) 51.0
 
March 19, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 36.0 μg/m3 (33) 7.0 μg/m3 (29) 33.0
 
March 19, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 8.6 μg/m3 (36) 36.0
 
March 19, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 41.0 μg/m3 (37) 10.2 μg/m3 (42) 42.0
 
March 19, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 74.0 μg/m3 (60) 10.1 μg/m3 (42) 60.0
 
March 19, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 54.0 μg/m3 (49) 9.4 μg/m3 (39) 49.0
 
March 19, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 54.0 μg/m3 (49) 10.9 μg/m3 (45) 49.0
 
March 19, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 56.0 μg/m3 (50) 8.7 μg/m3 (36) 50.0
 
March 19, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 239.0 μg/m3 (142) 12.8 μg/m3 (52) 142.0
 
March 19, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 89.0 μg/m3 (67) 9.3 μg/m3 (39) 67.0
 
March 19, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 45.0 μg/m3 (41) 8.6 μg/m3 (36) 41.0
 
March 19, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 72.0 μg/m3 (58) 15.8 μg/m3 (58) 58.0
 
March 19, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 119.0 μg/m3 (82) 18.5 μg/m3 (64) 82.0
 
March 19, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 65.0 μg/m3 (55) 12.5 μg/m3 (51) 55.0
 
March 19, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 39.0 μg/m3 (35) 8.9 μg/m3 (37) 37.0
 
March 19, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 55.0 μg/m3 (50) 8.2 μg/m3 (34) 50.0
 
March 19, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 5.4 μg/m3 (23) 23.0
 
March 19, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 11.5 μg/m3 (48) 48.0
 
March 19, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 5.6 μg/m3 (23) 23.0
 
March 19, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 33.0 μg/m3 (30) 9.1 μg/m3 (38) 38.0
 
March 19, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 43.0 μg/m3 (39) 10.1 μg/m3 (42) 42.0
 
March 19, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 42.0 μg/m3 (38) 10.3 μg/m3 (43) 43.0
 
March 19, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 6.7 μg/m3 (28) 28.0
 
March 19, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 5.4 μg/m3 (23) 23.0
 
March 19, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 4.0 μg/m3 (17) 17.0
 
March 18, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 4.7 μg/m3 (20) 20.0
 
March 18, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 4.5 μg/m3 (19) 19.0
 
March 18, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 2.5 μg/m3 (10) 10.0
 
March 18, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 1.0 μg/m3 (4) 8.0
 
March 18, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 4.0 μg/m3 (17) 17.0
 
March 18, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 5.9 μg/m3 (25) 25.0
 
March 18, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 9.4 μg/m3 (39) 39.0
 
March 18, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 8.5 μg/m3 (35) 35.0
 
March 18, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (21) 12.4 μg/m3 (51) 51.0
 
March 18, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (27) 13.1 μg/m3 (52) 52.0
 
March 18, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 49.0 μg/m3 (45) 14.1 μg/m3 (54) 54.0
 
March 18, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 103.0 μg/m3 (74) 15.6 μg/m3 (58) 74.0