AQSQID: 290210005

Site Name: St. Joseph

Location: St. Joseph, MO

Reporting: True, Located: True

Current AQI: 23.0

St. Joseph MO, US: 39.741699, -94.858299

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 25, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 5.6 μg/m3 (23) 23.0
 
May 25, 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) 4.0 μg/m3 (17) 17.0
 
May 25, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 5.2 μg/m3 (22) 22.0
 
May 25, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 1.6 μg/m3 (7) 15.0
 
May 25, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 4.9 μg/m3 (20) 20.0
 
May 25, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 5.2 μg/m3 (22) 22.0
 
May 25, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 3.4 μg/m3 (14) 15.0
 
May 25, 2019, 10 a.m. 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
 
May 25, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 8.3 μg/m3 (35) 35.0
 
May 25, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) -3.3 μg/m3 (0) 11.0
 
May 25, 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) -2.1 μg/m3 (0) 12.0
 
May 25, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 9.7 μg/m3 (40) 40.0
 
May 25, 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) 6.5 μg/m3 (27) 27.0
 
May 25, 2019, 4 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 (2) 10.0
 
May 25, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 1.9 μg/m3 (8) 13.0
 
May 25, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 0.5 μg/m3 (2) 14.0
 
May 25, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) N/A 15.0
 
May 25, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 11.3 μg/m3 (47) 47.0
 
May 24, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 0.9 μg/m3 (4) 19.0
 
May 24, 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) 6.9 μg/m3 (29) 29.0
 
May 24, 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) 6.2 μg/m3 (26) 26.0
 
May 24, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 2.2 μg/m3 (9) 15.0
 
May 24, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 2.5 μg/m3 (10) 13.0
 
May 24, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 6.5 μg/m3 (27) 27.0
 
May 24, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (25) 10.5 μg/m3 (44) 44.0
 
May 24, 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) 11.5 μg/m3 (48) 48.0
 
May 24, 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) 17.2 μg/m3 (61) 61.0
 
May 24, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 5.3 μg/m3 (22) 22.0
 
May 24, 2019, 1 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
 
May 24, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 4.8 μg/m3 (20) 20.0
 
May 24, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 8.4 μg/m3 (35) 35.0
 
May 24, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (26) 8.6 μg/m3 (36) 36.0
 
May 24, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (22) 4.3 μg/m3 (18) 22.0
 
May 24, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 3.6 μg/m3 (15) 15.0
 
May 24, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 4.1 μg/m3 (17) 17.0
 
May 24, 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) 5.8 μg/m3 (24) 24.0
 
May 24, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 0.2 μg/m3 (1) 15.0
 
May 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) 6.1 μg/m3 (25) 25.0
 
May 24, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (22) 4.9 μg/m3 (20) 22.0
 
May 24, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (22) 3.3 μg/m3 (14) 22.0
 
May 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) 4.0 μg/m3 (17) 24.0
 
May 24, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 36.0 μg/m3 (33) 4.5 μg/m3 (19) 33.0
 
May 23, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 31.0 μg/m3 (28) 3.6 μg/m3 (15) 28.0
 
May 23, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 39.0 μg/m3 (35) 5.2 μg/m3 (22) 35.0
 
May 23, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 4.4 μg/m3 (18) 25.0
 
May 23, 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) 0.6 μg/m3 (2) 32.0
 
May 23, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (25) 3.0 μg/m3 (12) 25.0
 
May 23, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (27) 4.0 μg/m3 (17) 27.0
 
May 23, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 35.0 μg/m3 (32) 2.8 μg/m3 (12) 32.0
 
May 23, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 33.0 μg/m3 (30) 2.8 μg/m3 (12) 30.0
 
May 23, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 39.0 μg/m3 (35) 4.2 μg/m3 (18) 35.0
 
May 23, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 53.0 μg/m3 (48) 4.7 μg/m3 (20) 48.0
 
May 23, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 36.0 μg/m3 (33) 7.9 μg/m3 (33) 33.0
 
May 23, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 118.0 μg/m3 (82) 9.8 μg/m3 (41) 82.0
 
May 23, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 92.0 μg/m3 (68) 8.4 μg/m3 (35) 68.0
 
May 23, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 40.0 μg/m3 (36) 4.0 μg/m3 (17) 36.0
 
May 23, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (27) 6.5 μg/m3 (27) 27.0
 
May 23, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (23) 4.9 μg/m3 (20) 23.0
 
May 23, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 2.0 μg/m3 (8) 18.0
 
May 23, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 2.9 μg/m3 (12) 17.0
 
May 23, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (21) 3.4 μg/m3 (14) 21.0
 
May 23, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 3.8 μg/m3 (16) 16.0
 
May 23, 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) 0.5 μg/m3 (2) 14.0
 
May 23, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 1.4 μg/m3 (6) 14.0
 
May 23, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) -0.7 μg/m3 (0) 11.0
 
May 23, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 1.7 μg/m3 (7) 13.0
 
May 22, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 2.2 μg/m3 (9) 15.0
 
May 22, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) 5.3 μg/m3 (22) 22.0
 
May 22, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (23) 2.1 μg/m3 (9) 23.0
 
May 22, 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) 3.4 μg/m3 (14) 17.0
 
May 22, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 0.0 μg/m3 (0) 14.0
 
May 22, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (1) N/A 1.0
 
May 22, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) N/A 15.0
 
May 22, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) N/A 14.0
 
May 22, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) N/A 12.0
 
May 22, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) N/A 10.0
 
May 22, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) N/A 14.0
 
May 22, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) N/A 15.0
 
May 22, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) N/A 17.0
 
May 22, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) N/A 14.0
 
May 22, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) N/A 18.0
 
May 22, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (23) N/A 23.0
 
May 22, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) N/A 18.0
 
May 22, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) N/A 17.0
 
May 22, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (21) N/A 21.0
 
May 22, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) N/A 19.0
 
May 22, 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) N/A 19.0
 
May 22, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) N/A 17.0
 
May 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) N/A 14.0
 
May 22, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) N/A 20.0
 
May 21, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) N/A 12.0
 
May 21, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) N/A 15.0
 
May 21, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) N/A 20.0
 
May 21, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) N/A 14.0
 
May 21, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) N/A 13.0
 
May 21, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) N/A 4.0
 
May 21, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A -3.0 μg/m3 (0) N/A N/A
May 21, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) N/A 2.0
 
May 21, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) N/A 5.0
 
May 21, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) N/A 5.0
 
May 21, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) N/A 6.0
 
May 21, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) N/A 8.0
 
May 21, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) N/A 8.0
 
May 21, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) N/A 3.0
 
May 21, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) N/A 5.0
 
May 21, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) N/A 2.0
 
May 21, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) N/A 15.0
 
May 21, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A -2.0 μg/m3 (0) N/A N/A
May 21, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) N/A 6.0
 
May 21, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) N/A 8.0
 
May 21, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) N/A 2.0
 
May 21, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) N/A 3.0
 
May 21, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) N/A 4.0
 
May 21, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) N/A 2.0
 
May 20, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) N/A 7.0
 
May 20, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) N/A 12.0
 
May 20, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) N/A 16.0
 
May 20, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (26) N/A 26.0
 
May 20, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 35.0 μg/m3 (32) N/A 32.0
 
May 20, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (29) N/A 29.0
 
May 20, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 31.0 μg/m3 (28) N/A 28.0
 
May 20, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (21) N/A 21.0
 
May 20, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (23) N/A 23.0
 
May 20, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (22) N/A 22.0
 
May 20, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (31) N/A 31.0
 
May 20, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 36.0 μg/m3 (33) N/A 33.0
 
May 20, 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) N/A 15.0
 
May 20, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) N/A 9.0
 
May 20, 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) N/A 8.0
 
May 20, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) N/A 8.0
 
May 20, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) N/A 7.0
 
May 20, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) N/A 8.0
 
May 20, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) N/A 7.0
 
May 20, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) N/A 8.0
 
May 20, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) N/A 11.0
 
May 20, 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) N/A 12.0
 
May 20, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) N/A 10.0
 
May 20, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) N/A 7.0
 
May 19, 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) N/A 8.0
 
May 19, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) N/A 5.0
 
May 19, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) N/A 6.0
 
May 19, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) N/A 7.0
 
May 19, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) N/A 7.0
 
May 19, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) N/A 7.0
 
May 19, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) N/A 6.0
 
May 19, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) N/A 6.0
 
May 19, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) N/A 7.0
 
May 19, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) N/A 8.0
 
May 19, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) N/A 6.0
 
May 19, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) N/A 12.0
 
May 19, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) N/A 14.0
 
May 19, 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) N/A 16.0
 
May 19, 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) N/A 11.0
 
May 19, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) N/A 5.0
 
May 19, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A -2.0 μg/m3 (0) N/A N/A
May 19, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) N/A 14.0
 
May 19, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) N/A 14.0
 
May 19, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) N/A 11.0
 
May 19, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) N/A 13.0
 
May 19, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) N/A 14.0
 
May 19, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) N/A 9.0
 
May 19, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) N/A 8.0
 
May 18, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) N/A 12.0
 
May 18, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) N/A 9.0
 
May 18, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) N/A 5.0
 
May 18, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) N/A 4.0
 
May 18, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) N/A 18.0
 
May 18, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (26) N/A 26.0