ID: 2070

AQSQID: 295100093

Site Name: Branch Street

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

Updated: June 23, 2021, 5:54 p.m.

Location: Saint Louis (Near N Rivfront), MO

Reporting: True, Located: True

Current AQI: 74.0

Saint Louis (Near N Rivfront) MO, US: 38.65643, -90.18977

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
June 23, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 100.0 μg/m3 (74) 19.0 μg/m3 (66) 74.0
 
June 23, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 85.0 μg/m3 (66) 15.4 μg/m3 (58) 66.0
 
June 23, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 66.0 μg/m3 (57) 18.2 μg/m3 (64) 64.0
 
June 23, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 57.0 μg/m3 (52) 11.4 μg/m3 (48) 52.0
 
June 23, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 57.0 μg/m3 (52) 13.9 μg/m3 (55) 55.0
 
June 23, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (30) 10.9 μg/m3 (46) 46.0
 
June 23, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (24) 6.1 μg/m3 (26) 26.0
 
June 23, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (17) 5.1 μg/m3 (22) 22.0
 
June 23, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (20) 3.4 μg/m3 (15) 20.0
 
June 23, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (18) 4.9 μg/m3 (21) 21.0
 
June 23, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (21) 6.1 μg/m3 (26) 26.0
 
June 23, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (23) 4.1 μg/m3 (18) 23.0
 
June 23, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (22) 6.1 μg/m3 (26) 26.0
 
June 23, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 5.8 μg/m3 (25) 25.0
 
June 23, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (22) 6.3 μg/m3 (27) 27.0
 
June 23, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (23) 2.8 μg/m3 (12) 23.0
 
June 23, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (22) 4.1 μg/m3 (18) 22.0
 
June 22, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (22) 9.2 μg/m3 (39) 39.0
 
June 22, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (28) 6.6 μg/m3 (28) 28.0
 
June 22, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (26) 1.4 μg/m3 (6) 26.0
 
June 22, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (22) 3.8 μg/m3 (16) 22.0
 
June 22, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (32) 4.8 μg/m3 (20) 32.0
 
June 22, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (24) 3.6 μg/m3 (16) 24.0
 
June 22, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 3.5 μg/m3 (15) 25.0
 
June 22, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 46.0 μg/m3 (43) 3.6 μg/m3 (16) 43.0
 
June 22, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 67.0 μg/m3 (57) 8.8 μg/m3 (37) 57.0
 
June 22, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 36.0 μg/m3 (34) 5.1 μg/m3 (22) 34.0
 
June 22, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (19) 3.1 μg/m3 (13) 19.0
 
June 22, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (21) 8.0 μg/m3 (34) 34.0
 
June 22, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (20) 6.9 μg/m3 (29) 29.0
 
June 22, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) 4.5 μg/m3 (19) 19.0
 
June 22, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (20) 5.5 μg/m3 (23) 23.0
 
June 22, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (17) 4.4 μg/m3 (19) 19.0
 
June 22, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 3.5 μg/m3 (15) 15.0
 
June 22, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 3.7 μg/m3 (16) 16.0
 
June 22, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) 2.9 μg/m3 (13) 13.0
 
June 22, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 3.5 μg/m3 (15) 15.0
 
June 22, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 0.9 μg/m3 (4) 15.0
 
June 22, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (19) 8.4 μg/m3 (36) 36.0
 
June 22, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (17) 1.5 μg/m3 (7) 17.0
 
June 22, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 1.3 μg/m3 (6) 15.0
 
June 21, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (21) 2.5 μg/m3 (11) 21.0
 
June 21, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (21) 1.6 μg/m3 (7) 21.0
 
June 21, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (18) 4.7 μg/m3 (20) 20.0
 
June 21, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 1.2 μg/m3 (5) 14.0
 
June 21, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (21) 4.3 μg/m3 (18) 21.0
 
June 21, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (17) 4.0 μg/m3 (17) 17.0
 
June 21, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 1.5 μg/m3 (7) 12.0
 
June 21, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (18) 5.8 μg/m3 (25) 25.0
 
June 21, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (18) 3.5 μg/m3 (15) 18.0
 
June 21, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 2.4 μg/m3 (10) 15.0
 
June 21, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (20) 3.3 μg/m3 (14) 20.0
 
June 21, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (21) 4.5 μg/m3 (19) 21.0
 
June 21, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) 2.6 μg/m3 (11) 16.0
 
June 21, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) -1.3 μg/m3 (0) 12.0
 
June 21, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (11) 1.2 μg/m3 (5) 11.0
 
June 21, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (11) 0.9 μg/m3 (4) 11.0
 
June 21, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) 9.8 μg/m3 (41) 41.0
 
June 21, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 7.7 μg/m3 (33) 33.0
 
June 21, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (32) 14.1 μg/m3 (56) 56.0
 
June 21, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (32) 12.5 μg/m3 (52) 52.0
 
June 21, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (27) 16.6 μg/m3 (61) 61.0
 
June 21, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 31.0 μg/m3 (29) 10.8 μg/m3 (46) 46.0
 
June 21, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (32) 11.0 μg/m3 (46) 46.0
 
June 21, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 37.0 μg/m3 (35) 10.4 μg/m3 (44) 44.0
 
June 20, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 50.0 μg/m3 (47) 18.9 μg/m3 (66) 66.0
 
June 20, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 37.0 μg/m3 (35) 17.5 μg/m3 (63) 63.0
 
June 20, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 44.0 μg/m3 (41) 11.1 μg/m3 (47) 47.0
 
June 20, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (32) 10.0 μg/m3 (42) 42.0
 
June 20, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (30) 14.7 μg/m3 (57) 57.0
 
June 20, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 38.0 μg/m3 (36) 16.5 μg/m3 (61) 61.0
 
June 20, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 50.0 μg/m3 (47) 18.6 μg/m3 (65) 65.0
 
June 20, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (32) 19.0 μg/m3 (66) 66.0
 
June 20, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (27) 8.9 μg/m3 (38) 38.0
 
June 20, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (27) 12.7 μg/m3 (53) 53.0
 
June 20, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 31.0 μg/m3 (29) 16.8 μg/m3 (61) 61.0
 
June 20, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (24) 11.2 μg/m3 (47) 47.0
 
June 20, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (24) 6.2 μg/m3 (26) 26.0
 
June 20, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 9.4 μg/m3 (40) 40.0
 
June 20, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (17) 6.9 μg/m3 (29) 29.0
 
June 20, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (18) 7.8 μg/m3 (33) 33.0
 
June 20, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) 7.6 μg/m3 (32) 32.0
 
June 20, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (18) 8.2 μg/m3 (35) 35.0
 
June 20, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (21) 8.8 μg/m3 (37) 37.0
 
June 20, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (20) 12.7 μg/m3 (53) 53.0
 
June 20, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (17) 14.1 μg/m3 (56) 56.0
 
June 20, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (17) 2.7 μg/m3 (12) 17.0
 
June 20, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (20) 17.4 μg/m3 (63) 63.0
 
June 20, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (19) 15.2 μg/m3 (58) 58.0
 
June 19, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (23) 17.8 μg/m3 (63) 63.0
 
June 19, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 76.0 μg/m3 (62) 12.7 μg/m3 (53) 62.0
 
June 19, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 24.5 μg/m3 (78) 78.0
 
June 19, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 78.0 μg/m3 (63) 30.7 μg/m3 (91) 91.0
 
June 19, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 83.0 μg/m3 (65) 27.0 μg/m3 (83) 83.0
 
June 19, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 66.0 μg/m3 (57) 17.3 μg/m3 (62) 62.0
 
June 19, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 18.8 μg/m3 (66) 66.0
 
June 19, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 145.0 μg/m3 (96) 29.9 μg/m3 (89) 96.0
 
June 19, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 85.0 μg/m3 (66) 10.5 μg/m3 (44) 66.0
 
June 19, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 62.0 μg/m3 (55) 10.2 μg/m3 (43) 55.0
 
June 19, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 55.0 μg/m3 (51) 7.0 μg/m3 (30) 51.0
 
June 19, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 50.0 μg/m3 (47) 10.8 μg/m3 (46) 47.0
 
June 19, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 58.0 μg/m3 (53) 8.0 μg/m3 (34) 53.0
 
June 19, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 35.0 μg/m3 (33) 16.7 μg/m3 (61) 61.0
 
June 19, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (27) 14.4 μg/m3 (56) 56.0
 
June 19, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 31.0 μg/m3 (29) 16.4 μg/m3 (61) 61.0
 
June 19, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 33.0 μg/m3 (31) 17.3 μg/m3 (62) 62.0
 
June 19, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 33.0 μg/m3 (31) 16.3 μg/m3 (60) 60.0
 
June 19, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 78.0 μg/m3 (63) 18.7 μg/m3 (65) 65.0
 
June 19, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 40.0 μg/m3 (38) 18.6 μg/m3 (65) 65.0
 
June 19, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 45.0 μg/m3 (42) 16.5 μg/m3 (61) 61.0
 
June 19, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (32) 16.5 μg/m3 (61) 61.0
 
June 19, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (32) 7.4 μg/m3 (31) 32.0
 
June 19, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 31.0 μg/m3 (29) 17.8 μg/m3 (63) 63.0
 
June 18, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (30) 11.0 μg/m3 (46) 46.0
 
June 18, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 59.0 μg/m3 (53) 9.2 μg/m3 (39) 53.0
 
June 18, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 35.0 μg/m3 (33) 10.3 μg/m3 (43) 43.0
 
June 18, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 76.0 μg/m3 (62) 26.9 μg/m3 (83) 83.0
 
June 18, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 79.0 μg/m3 (63) 19.1 μg/m3 (66) 66.0
 
June 18, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 43.0 μg/m3 (40) 18.2 μg/m3 (64) 64.0
 
June 18, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 52.0 μg/m3 (49) 17.6 μg/m3 (63) 63.0
 
June 18, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 37.0 μg/m3 (35) 20.7 μg/m3 (70) 70.0
 
June 18, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 56.0 μg/m3 (52) 17.3 μg/m3 (62) 62.0
 
June 18, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 39.0 μg/m3 (37) 24.8 μg/m3 (78) 78.0
 
June 18, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 44.0 μg/m3 (41) 19.7 μg/m3 (67) 67.0
 
June 18, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 44.0 μg/m3 (41) 19.7 μg/m3 (67) 67.0
 
June 18, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 41.0 μg/m3 (38) 20.0 μg/m3 (68) 68.0
 
June 18, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (27) 14.2 μg/m3 (56) 56.0
 
June 18, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (28) 15.7 μg/m3 (59) 59.0
 
June 18, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (26) 19.0 μg/m3 (66) 66.0
 
June 18, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (30) 16.1 μg/m3 (60) 60.0
 
June 18, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (32) 19.3 μg/m3 (67) 67.0
 
June 18, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 39.0 μg/m3 (37) 14.3 μg/m3 (56) 56.0
 
June 18, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 42.0 μg/m3 (39) 18.3 μg/m3 (65) 65.0
 
June 18, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 43.0 μg/m3 (40) 16.9 μg/m3 (62) 62.0
 
June 18, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 61.0 μg/m3 (54) 15.5 μg/m3 (59) 59.0
 
June 18, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 70.0 μg/m3 (59) 21.1 μg/m3 (70) 70.0
 
June 18, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 59.0 μg/m3 (53) 21.7 μg/m3 (72) 72.0
 
June 17, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 66.0 μg/m3 (57) 18.8 μg/m3 (66) 66.0
 
June 17, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 88.0 μg/m3 (68) 16.0 μg/m3 (60) 68.0
 
June 17, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 111.0 μg/m3 (79) 25.5 μg/m3 (80) 80.0
 
June 17, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (98) 98.0
 
June 17, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 84.0 μg/m3 (66) 25.6 μg/m3 (80) 80.0
 
June 17, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 96.0 μg/m3 (72) 32.8 μg/m3 (95) 95.0
 
June 17, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 48.0 μg/m3 (132) 132.0
 
June 17, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 98.0 μg/m3 (73) 29.8 μg/m3 (89) 89.0
 
June 17, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 93.0 μg/m3 (70) 26.9 μg/m3 (83) 83.0
 
June 17, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 74.0 μg/m3 (61) 23.6 μg/m3 (76) 76.0
 
June 17, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 100.0 μg/m3 (74) 30.1 μg/m3 (89) 89.0
 
June 17, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 134.0 μg/m3 (91) 35.5 μg/m3 (101) 101.0
 
June 17, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 93.0 μg/m3 (70) 21.0 μg/m3 (70) 70.0
 
June 17, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 38.0 μg/m3 (36) 9.7 μg/m3 (41) 41.0
 
June 17, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 31.0 μg/m3 (29) 13.9 μg/m3 (55) 55.0
 
June 17, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (32) 12.5 μg/m3 (52) 52.0
 
June 17, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (32) 11.9 μg/m3 (50) 50.0
 
June 17, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (21) 9.7 μg/m3 (41) 41.0
 
June 17, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (24) 9.5 μg/m3 (40) 40.0
 
June 17, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 31.0 μg/m3 (29) 12.6 μg/m3 (53) 53.0
 
June 17, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (30) 8.5 μg/m3 (36) 36.0
 
June 17, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (27) 4.8 μg/m3 (20) 27.0
 
June 17, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (24) 2.8 μg/m3 (12) 24.0
 
June 17, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (20) 0.7 μg/m3 (3) 20.0
 
June 16, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (23) 4.8 μg/m3 (20) 23.0
 
June 16, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (25) 6.3 μg/m3 (27) 27.0
 
June 16, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 41.0 μg/m3 (38) 8.2 μg/m3 (35) 38.0
 
June 16, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 42.0 μg/m3 (39) 9.3 μg/m3 (39) 39.0
 
June 16, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 46.0 μg/m3 (43) 5.3 μg/m3 (23) 43.0
 
June 16, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 57.0 μg/m3 (52) 7.8 μg/m3 (33) 52.0
 
June 16, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 39.0 μg/m3 (37) 5.1 μg/m3 (22) 37.0