AQSQID: 460290002

Site Name: Watertown

Location: Watertown, SD

Reporting: True, Located: True

Current AQI: 50.0

Watertown SD, US: 44.89965, -97.128802

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 16, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 55.0 μg/m3 (50) 9.5 μg/m3 (40) 50.0
 
Sept. 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) 7.6 μg/m3 (32) 39.0
 
Sept. 16, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) 7.9 μg/m3 (33) 33.0
 
Sept. 16, 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) 7.1 μg/m3 (30) 30.0
 
Sept. 16, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) 5.4 μg/m3 (23) 23.0
 
Sept. 16, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 2.3 μg/m3 (10) 10.0
 
Sept. 16, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 3.2 μg/m3 (13) 13.0
 
Sept. 16, 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) 6.6 μg/m3 (28) 28.0
 
Sept. 16, 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) 7.6 μg/m3 (32) 32.0
 
Sept. 16, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 5.9 μg/m3 (25) 25.0
 
Sept. 16, 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) 6.4 μg/m3 (27) 27.0
 
Sept. 16, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 9.1 μg/m3 (38) 38.0
 
Sept. 16, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 5.4 μg/m3 (23) 23.0
 
Sept. 16, 2019, 1 a.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
 
Sept. 16, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (24) 7.1 μg/m3 (30) 30.0
 
Sept. 15, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 5.7 μg/m3 (24) 25.0
 
Sept. 15, 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) 4.9 μg/m3 (20) 21.0
 
Sept. 15, 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) 2.0 μg/m3 (8) 15.0
 
Sept. 15, 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) 2.5 μg/m3 (10) 22.0
 
Sept. 15, 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) 2.5 μg/m3 (10) 11.0
 
Sept. 15, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 1.8 μg/m3 (8) 10.0
 
Sept. 15, 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) 4.2 μg/m3 (18) 18.0
 
Sept. 15, 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) 5.9 μg/m3 (25) 25.0
 
Sept. 15, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 4.7 μg/m3 (20) 20.0
 
Sept. 15, 2019, 2 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
 
Sept. 15, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 1.8 μg/m3 (8) 8.0
 
Sept. 15, 2019, noon 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
 
Sept. 15, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 7.6 μg/m3 (32) 32.0
 
Sept. 15, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 6.8 μg/m3 (28) 28.0
 
Sept. 15, 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) 7.8 μg/m3 (32) 32.0
 
Sept. 15, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 12.2 μg/m3 (50) 50.0
 
Sept. 15, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (21) 8.3 μg/m3 (35) 35.0
 
Sept. 15, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 35.0 μg/m3 (32) 19.1 μg/m3 (65) 65.0
 
Sept. 15, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 40.0 μg/m3 (36) 21.5 μg/m3 (70) 70.0
 
Sept. 15, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 39.0 μg/m3 (35) 20.4 μg/m3 (68) 68.0
 
Sept. 15, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 65.0 μg/m3 (55) 25.4 μg/m3 (79) 79.0
 
Sept. 15, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 62.0 μg/m3 (54) 24.2 μg/m3 (76) 76.0
 
Sept. 15, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 67.0 μg/m3 (56) 16.4 μg/m3 (59) 59.0
 
Sept. 15, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (27) 7.4 μg/m3 (31) 31.0
 
Sept. 14, 2019, 11 p.m. 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
 
Sept. 14, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 6.2 μg/m3 (26) 26.0
 
Sept. 14, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (24) 3.0 μg/m3 (12) 24.0
 
Sept. 14, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 2.5 μg/m3 (10) 19.0
 
Sept. 14, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 4.4 μg/m3 (18) 18.0
 
Sept. 14, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (31) 6.6 μg/m3 (28) 31.0
 
Sept. 14, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 3.0 μg/m3 (12) 19.0
 
Sept. 14, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (22) 4.0 μg/m3 (17) 22.0
 
Sept. 14, 2019, 3 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
 
Sept. 14, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 2.0 μg/m3 (8) 11.0
 
Sept. 14, 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) 4.4 μg/m3 (18) 18.0
 
Sept. 14, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 3.7 μg/m3 (15) 15.0
 
Sept. 14, 2019, 11 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 (0) 7.0
 
Sept. 14, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 0.0 μg/m3 (0) 7.0
 
Sept. 14, 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
 
Sept. 14, 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) 1.8 μg/m3 (8) 8.0
 
Sept. 14, 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) 2.7 μg/m3 (11) 11.0
 
Sept. 14, 2019, 6 a.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
 
Sept. 14, 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) 1.3 μg/m3 (5) 10.0
 
Sept. 14, 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) 3.2 μg/m3 (13) 13.0
 
Sept. 14, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 31.0 μg/m3 (28) 4.1 μg/m3 (17) 28.0
 
Sept. 14, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (24) 3.0 μg/m3 (12) 24.0
 
Sept. 14, 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) 4.4 μg/m3 (18) 18.0
 
Sept. 14, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 4.2 μg/m3 (18) 18.0
 
Sept. 13, 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) 2.0 μg/m3 (8) 8.0
 
Sept. 13, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 2.3 μg/m3 (10) 10.0
 
Sept. 13, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 3.7 μg/m3 (15) 15.0
 
Sept. 13, 2019, 8 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
 
Sept. 13, 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) -0.5 μg/m3 (0) 14.0
 
Sept. 13, 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) 2.5 μg/m3 (10) 13.0
 
Sept. 13, 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) 2.5 μg/m3 (10) 14.0
 
Sept. 13, 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) 3.7 μg/m3 (15) 15.0
 
Sept. 13, 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) 3.4 μg/m3 (14) 14.0
 
Sept. 13, 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) 2.2 μg/m3 (9) 9.0
 
Sept. 13, 2019, 1 p.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
 
Sept. 13, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 2.2 μg/m3 (9) 9.0
 
Sept. 13, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 1.3 μg/m3 (5) 5.0
 
Sept. 13, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 2.5 μg/m3 (10) 10.0
 
Sept. 13, 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) 4.4 μg/m3 (18) 18.0
 
Sept. 13, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 1.5 μg/m3 (6) 6.0
 
Sept. 13, 2019, 7 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
 
Sept. 13, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) -1.7 μg/m3 (0) 5.0
 
Sept. 13, 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) -0.8 μg/m3 (0) 5.0
 
Sept. 13, 2019, 4 a.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
 
Sept. 13, 2019, 3 a.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 (0) 5.0
 
Sept. 13, 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) -1.7 μg/m3 (0) 4.0
 
Sept. 13, 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) -0.8 μg/m3 (0) 5.0
 
Sept. 13, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 2.5 μg/m3 (10) 10.0
 
Sept. 12, 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) 6.6 μg/m3 (28) 28.0
 
Sept. 12, 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) 5.6 μg/m3 (23) 23.0
 
Sept. 12, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (26) 5.2 μg/m3 (22) 26.0
 
Sept. 12, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 37.0 μg/m3 (34) 7.1 μg/m3 (30) 34.0
 
Sept. 12, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 39.0 μg/m3 (35) 9.5 μg/m3 (40) 40.0
 
Sept. 12, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 1.6 μg/m3 (7) 19.0
 
Sept. 12, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 1.6 μg/m3 (7) 7.0
 
Sept. 12, 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) 1.3 μg/m3 (5) 5.0
 
Sept. 12, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 1.8 μg/m3 (8) 8.0
 
Sept. 12, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (1) 3.0 μg/m3 (12) 12.0
 
Sept. 12, 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 (2) 2.0
 
Sept. 12, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 1.6 μg/m3 (7) 7.0
 
Sept. 12, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 2.2 μg/m3 (9) 9.0
 
Sept. 12, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 0.4 μg/m3 (2) 2.0
 
Sept. 12, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (1) 0.9 μg/m3 (4) 4.0
 
Sept. 12, 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) 0.4 μg/m3 (2) 2.0
 
Sept. 12, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (1) -2.4 μg/m3 (0) 1.0
 
Sept. 12, 2019, 6 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 (0) 2.0
 
Sept. 12, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 1.8 μg/m3 (8) 8.0
 
Sept. 12, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 1.1 μg/m3 (5) 6.0
 
Sept. 12, 2019, 3 a.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
 
Sept. 12, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 0.2 μg/m3 (1) 5.0
 
Sept. 12, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 2.8 μg/m3 (12) 12.0
 
Sept. 12, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 4.4 μg/m3 (18) 18.0
 
Sept. 11, 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) 6.4 μg/m3 (27) 27.0
 
Sept. 11, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 6.9 μg/m3 (29) 29.0
 
Sept. 11, 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) 3.5 μg/m3 (15) 15.0
 
Sept. 11, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 4.9 μg/m3 (20) 20.0
 
Sept. 11, 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) 3.7 μg/m3 (15) 15.0
 
Sept. 11, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 4.7 μg/m3 (20) 20.0
 
Sept. 11, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 5.2 μg/m3 (22) 22.0
 
Sept. 11, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 5.2 μg/m3 (22) 22.0
 
Sept. 11, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 5.9 μg/m3 (25) 25.0
 
Sept. 11, 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) 3.7 μg/m3 (15) 15.0
 
Sept. 11, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 2.7 μg/m3 (11) 11.0
 
Sept. 11, 2019, noon 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
 
Sept. 11, 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) 2.7 μg/m3 (11) 11.0
 
Sept. 11, 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
 
Sept. 11, 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) 4.2 μg/m3 (18) 18.0
 
Sept. 11, 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) 3.0 μg/m3 (12) 12.0
 
Sept. 11, 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) 2.7 μg/m3 (11) 11.0
 
Sept. 11, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 1.1 μg/m3 (5) 6.0
 
Sept. 11, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 3.0 μg/m3 (12) 12.0
 
Sept. 11, 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) 2.3 μg/m3 (10) 11.0
 
Sept. 11, 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) -0.2 μg/m3 (0) 9.0
 
Sept. 11, 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) 2.5 μg/m3 (10) 13.0
 
Sept. 11, 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) 3.7 μg/m3 (15) 15.0
 
Sept. 11, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 2.3 μg/m3 (10) 10.0
 
Sept. 10, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 1.1 μg/m3 (5) 14.0
 
Sept. 10, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 0.7 μg/m3 (3) 6.0
 
Sept. 10, 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) -2.4 μg/m3 (0) 6.0
 
Sept. 10, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) -0.5 μg/m3 (0) 6.0
 
Sept. 10, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 0.4 μg/m3 (2) 9.0
 
Sept. 10, 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) 3.0 μg/m3 (12) 13.0
 
Sept. 10, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 4.4 μg/m3 (18) 18.0
 
Sept. 10, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 2.5 μg/m3 (10) 18.0
 
Sept. 10, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 3.0 μg/m3 (12) 12.0
 
Sept. 10, 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) 3.2 μg/m3 (13) 13.0
 
Sept. 10, 2019, 1 p.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
 
Sept. 10, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 3.2 μg/m3 (13) 15.0
 
Sept. 10, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 2.5 μg/m3 (10) 10.0
 
Sept. 10, 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) 3.5 μg/m3 (15) 15.0
 
Sept. 10, 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) 5.2 μg/m3 (22) 22.0
 
Sept. 10, 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) 3.2 μg/m3 (13) 13.0
 
Sept. 10, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 3.0 μg/m3 (12) 12.0
 
Sept. 10, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 4.5 μg/m3 (19) 19.0
 
Sept. 10, 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) 4.7 μg/m3 (20) 20.0
 
Sept. 10, 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) 8.3 μg/m3 (35) 35.0
 
Sept. 10, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 9.8 μg/m3 (41) 41.0
 
Sept. 10, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 5.9 μg/m3 (25) 25.0
 
Sept. 10, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 6.4 μg/m3 (27) 27.0
 
Sept. 10, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 6.6 μg/m3 (28) 28.0
 
Sept. 9, 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) 8.3 μg/m3 (35) 35.0
 
Sept. 9, 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) 4.9 μg/m3 (20) 21.0
 
Sept. 9, 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) 6.6 μg/m3 (28) 28.0
 
Sept. 9, 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) 8.6 μg/m3 (36) 36.0
 
Sept. 9, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 2.5 μg/m3 (10) 10.0
 
Sept. 9, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 0.0 μg/m3 (0) 3.0
 
Sept. 9, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) -1.3 μg/m3 (0) 2.0
 
Sept. 9, 2019, 4 p.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 (0) 3.0
 
Sept. 9, 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) -2.9 μg/m3 (0) 3.0