AQSQID: 460290002

Site Name: Watertown

Location: Watertown, SD

Reporting: True, Located: True

Current AQI: 19.0

Watertown SD, US: 44.89965, -97.128802

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 21, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 4.9 μg/m3 (20) 20.0
 
May 21, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 4.6 μg/m3 (19) 19.0
 
May 21, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 6.3 μg/m3 (26) 26.0
 
May 21, 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) 6.3 μg/m3 (26) 26.0
 
May 21, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 2.9 μg/m3 (12) 12.0
 
May 21, 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) 3.2 μg/m3 (13) 13.0
 
May 21, 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) 3.6 μg/m3 (15) 15.0
 
May 21, 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) 5.6 μg/m3 (23) 23.0
 
May 21, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 7.3 μg/m3 (30) 30.0
 
May 21, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 3.4 μg/m3 (14) 14.0
 
May 21, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 2.0 μg/m3 (8) 9.0
 
May 21, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 1.5 μg/m3 (6) 7.0
 
May 21, 2019, 1 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
 
May 21, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 2.9 μg/m3 (12) 12.0
 
May 20, 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) 1.7 μg/m3 (7) 8.0
 
May 20, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (26) 4.1 μg/m3 (17) 26.0
 
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) 4.9 μg/m3 (20) 20.0
 
May 20, 2019, 8 p.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
 
May 20, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 0.6 μg/m3 (2) 11.0
 
May 20, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) -0.3 μg/m3 (0) 5.0
 
May 20, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 0.1 μg/m3 (0) 5.0
 
May 20, 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) 1.8 μg/m3 (8) 8.0
 
May 20, 2019, 3 p.m. 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
 
May 20, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) -0.6 μg/m3 (0) 6.0
 
May 20, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) -0.6 μg/m3 (0) 7.0
 
May 20, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) -0.6 μg/m3 (0) 15.0
 
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) -1.1 μg/m3 (0) 15.0
 
May 20, 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) 2.7 μg/m3 (11) 11.0
 
May 20, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 5.1 μg/m3 (21) 21.0
 
May 20, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 4.1 μg/m3 (17) 17.0
 
May 20, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 2.4 μg/m3 (10) 10.0
 
May 20, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 1.3 μg/m3 (5) 5.0
 
May 20, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 0.1 μg/m3 (0) 5.0
 
May 20, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 0.8 μg/m3 (3) 5.0
 
May 20, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 0.8 μg/m3 (3) 6.0
 
May 20, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 2.7 μg/m3 (11) 11.0
 
May 20, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 4.1 μg/m3 (17) 17.0
 
May 20, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 4.1 μg/m3 (17) 17.0
 
May 19, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 4.8 μg/m3 (20) 20.0
 
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) 1.0 μg/m3 (4) 5.0
 
May 19, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) -0.1 μg/m3 (0) 5.0
 
May 19, 2019, 8 p.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
 
May 19, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 0.8 μg/m3 (3) 3.0
 
May 19, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 0.8 μg/m3 (3) 5.0
 
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) 1.5 μg/m3 (6) 6.0
 
May 19, 2019, 4 p.m. 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
 
May 19, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 1.3 μg/m3 (5) 5.0
 
May 19, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) -0.6 μg/m3 (0) 2.0
 
May 19, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) -0.6 μg/m3 (0) 2.0
 
May 19, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) -0.3 μg/m3 (0) 4.0
 
May 19, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 1.0 μg/m3 (4) 5.0
 
May 19, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 3.1 μg/m3 (13) 13.0
 
May 19, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 3.6 μg/m3 (15) 15.0
 
May 19, 2019, 8 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 (5) 5.0
 
May 19, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) -0.8 μg/m3 (0) 3.0
 
May 19, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 1.3 μg/m3 (5) 5.0
 
May 19, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 1.3 μg/m3 (5) 5.0
 
May 19, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 0.6 μg/m3 (2) 5.0
 
May 19, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 1.7 μg/m3 (7) 7.0
 
May 19, 2019, 2 a.m. 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
 
May 19, 2019, 1 a.m. 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
 
May 19, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 1.5 μg/m3 (6) 6.0
 
May 18, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) -0.1 μg/m3 (0) 4.0
 
May 18, 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) 2.2 μg/m3 (9) 9.0
 
May 18, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 5.1 μg/m3 (21) 21.0
 
May 18, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 2.0 μg/m3 (8) 8.0
 
May 18, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 3.6 μg/m3 (15) 15.0
 
May 18, 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) 1.3 μg/m3 (5) 5.0
 
May 18, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 0.3 μg/m3 (1) 5.0
 
May 18, 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) 3.7 μg/m3 (15) 15.0
 
May 18, 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) 8.5 μg/m3 (35) 35.0
 
May 18, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 1.3 μg/m3 (5) 5.0
 
May 18, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 3.9 μg/m3 (16) 16.0
 
May 18, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 4.8 μg/m3 (20) 20.0
 
May 18, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 3.2 μg/m3 (13) 13.0
 
May 18, 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) 3.4 μg/m3 (14) 14.0
 
May 18, 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) 4.6 μg/m3 (19) 19.0
 
May 18, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 5.1 μg/m3 (21) 21.0
 
May 18, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 4.6 μg/m3 (19) 19.0
 
May 18, 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) 2.7 μg/m3 (11) 11.0
 
May 18, 2019, 4 a.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 18, 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) 8.8 μg/m3 (37) 37.0
 
May 18, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (21) 7.0 μg/m3 (29) 29.0
 
May 18, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 56.0 μg/m3 (50) 5.8 μg/m3 (24) 50.0
 
May 18, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 45.0 μg/m3 (41) 7.3 μg/m3 (30) 41.0
 
May 17, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 57.0 μg/m3 (51) 4.1 μg/m3 (17) 51.0
 
May 17, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 92.0 μg/m3 (68) 4.1 μg/m3 (17) 68.0
 
May 17, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 59.0 μg/m3 (52) 6.8 μg/m3 (28) 52.0
 
May 17, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 58.0 μg/m3 (52) 6.6 μg/m3 (28) 52.0
 
May 17, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 69.0 μg/m3 (57) 8.0 μg/m3 (33) 57.0
 
May 17, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 50.0 μg/m3 (45) 4.8 μg/m3 (20) 45.0
 
May 17, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 69.0 μg/m3 (57) 2.2 μg/m3 (9) 57.0
 
May 17, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 66.0 μg/m3 (56) 2.7 μg/m3 (11) 56.0
 
May 17, 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) 0.1 μg/m3 (0) 21.0
 
May 17, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 2.4 μg/m3 (10) 19.0
 
May 17, 2019, 1 p.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
 
May 17, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 6.1 μg/m3 (25) 25.0
 
May 17, 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) 2.2 μg/m3 (9) 12.0
 
May 17, 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) 2.9 μg/m3 (12) 14.0
 
May 17, 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) 2.9 μg/m3 (12) 12.0
 
May 17, 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) 2.4 μg/m3 (10) 10.0
 
May 17, 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) 0.8 μg/m3 (3) 16.0
 
May 17, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 3.9 μg/m3 (16) 16.0
 
May 17, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) 5.8 μg/m3 (24) 24.0
 
May 17, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (25) 5.6 μg/m3 (23) 25.0
 
May 17, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (24) 6.5 μg/m3 (27) 27.0
 
May 17, 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) 7.5 μg/m3 (31) 31.0
 
May 17, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 4.1 μg/m3 (17) 25.0
 
May 16, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (27) 6.3 μg/m3 (26) 27.0
 
May 16, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 36.0 μg/m3 (33) 9.2 μg/m3 (38) 38.0
 
May 16, 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) 4.1 μg/m3 (17) 24.0
 
May 16, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (23) 5.1 μg/m3 (21) 23.0
 
May 16, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (23) 8.8 μg/m3 (37) 37.0
 
May 16, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (25) 14.1 μg/m3 (54) 54.0
 
May 16, 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) 11.9 μg/m3 (50) 50.0
 
May 16, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 36.0 μg/m3 (33) 6.6 μg/m3 (28) 33.0
 
May 16, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 43.0 μg/m3 (39) 6.6 μg/m3 (28) 39.0
 
May 16, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 44.0 μg/m3 (40) 10.0 μg/m3 (42) 42.0
 
May 16, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 61.0 μg/m3 (53) 8.3 μg/m3 (35) 53.0
 
May 16, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 35.0 μg/m3 (32) 4.6 μg/m3 (19) 32.0
 
May 16, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 46.0 μg/m3 (42) 7.3 μg/m3 (30) 42.0
 
May 16, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 38.0 μg/m3 (35) 10.0 μg/m3 (42) 42.0
 
May 16, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (27) 9.0 μg/m3 (38) 38.0
 
May 16, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 33.0 μg/m3 (30) 8.0 μg/m3 (33) 33.0
 
May 16, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 52.0 μg/m3 (47) 8.5 μg/m3 (35) 47.0
 
May 16, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 41.0 μg/m3 (37) 5.8 μg/m3 (24) 37.0
 
May 16, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 47.0 μg/m3 (43) 7.3 μg/m3 (30) 43.0
 
May 16, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 50.0 μg/m3 (45) 10.0 μg/m3 (42) 45.0
 
May 16, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 57.0 μg/m3 (51) 5.3 μg/m3 (22) 51.0
 
May 16, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 58.0 μg/m3 (52) 4.1 μg/m3 (17) 52.0
 
May 15, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 81.0 μg/m3 (63) 6.1 μg/m3 (25) 63.0
 
May 15, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 118.0 μg/m3 (82) 10.4 μg/m3 (43) 82.0
 
May 15, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 153.0 μg/m3 (99) 10.7 μg/m3 (45) 99.0
 
May 15, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 144.0 μg/m3 (94) 12.1 μg/m3 (50) 94.0
 
May 15, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 119.0 μg/m3 (82) 9.0 μg/m3 (38) 82.0
 
May 15, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 115.0 μg/m3 (80) 10.5 μg/m3 (44) 80.0
 
May 15, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 91.0 μg/m3 (68) 8.5 μg/m3 (35) 68.0
 
May 15, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 84.0 μg/m3 (64) 9.2 μg/m3 (38) 64.0
 
May 15, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 71.0 μg/m3 (58) 7.5 μg/m3 (31) 58.0
 
May 15, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 83.0 μg/m3 (64) 6.5 μg/m3 (27) 64.0
 
May 15, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 56.0 μg/m3 (50) 3.9 μg/m3 (16) 50.0
 
May 15, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 37.0 μg/m3 (34) 5.3 μg/m3 (22) 34.0
 
May 15, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (29) 8.0 μg/m3 (33) 33.0
 
May 15, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 12.4 μg/m3 (51) 51.0
 
May 15, 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) 7.0 μg/m3 (29) 29.0
 
May 15, 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) 10.5 μg/m3 (44) 44.0
 
May 15, 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) 6.1 μg/m3 (25) 25.0
 
May 15, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (22) 6.1 μg/m3 (25) 25.0
 
May 15, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (25) 10.7 μg/m3 (45) 45.0
 
May 15, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 36.0 μg/m3 (33) 14.1 μg/m3 (54) 54.0
 
May 15, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 51.0 μg/m3 (46) 15.1 μg/m3 (57) 57.0
 
May 15, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 45.0 μg/m3 (41) 11.9 μg/m3 (50) 50.0
 
May 15, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (29) 8.5 μg/m3 (35) 35.0
 
May 15, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (25) 5.6 μg/m3 (23) 25.0
 
May 14, 2019, 11 p.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 14, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 38.0 μg/m3 (35) 5.1 μg/m3 (21) 35.0
 
May 14, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 51.0 μg/m3 (46) 5.1 μg/m3 (21) 46.0
 
May 14, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 38.0 μg/m3 (35) 2.5 μg/m3 (10) 35.0
 
May 14, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 41.0 μg/m3 (37) 5.3 μg/m3 (22) 37.0
 
May 14, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 44.0 μg/m3 (40) 9.0 μg/m3 (38) 40.0
 
May 14, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (26) 9.0 μg/m3 (38) 38.0
 
May 14, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 47.0 μg/m3 (43) 7.0 μg/m3 (29) 43.0
 
May 14, 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) 10.9 μg/m3 (45) 45.0
 
May 14, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 57.0 μg/m3 (51) 9.8 μg/m3 (41) 51.0
 
May 14, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 57.0 μg/m3 (51) 11.2 μg/m3 (47) 51.0
 
May 14, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 63.0 μg/m3 (54) 13.9 μg/m3 (54) 54.0
 
May 14, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (26) 10.5 μg/m3 (44) 44.0
 
May 14, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (29) 8.2 μg/m3 (34) 34.0