AQSQID: 460290002

Site Name: Watertown

Location: Watertown, SD

Reporting: True, Located: True

Current AQI: 43.0

Watertown SD, US: 44.89965, -97.128802

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 24, 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) 10.4 μg/m3 (43) 43.0
 
March 24, 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) 6.3 μg/m3 (26) 26.0
 
March 24, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 11.4 μg/m3 (48) 48.0
 
March 24, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 12.1 μg/m3 (50) 50.0
 
March 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) 8.5 μg/m3 (35) 35.0
 
March 24, 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) 10.9 μg/m3 (45) 45.0
 
March 24, 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) 10.9 μg/m3 (45) 45.0
 
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) 9.9 μg/m3 (41) 41.0
 
March 24, 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) 10.9 μg/m3 (45) 45.0
 
March 24, 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) 9.7 μg/m3 (40) 40.0
 
March 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) 11.9 μg/m3 (50) 50.0
 
March 24, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 7.7 μg/m3 (32) 32.0
 
March 24, 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) 10.9 μg/m3 (45) 45.0
 
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) 8.2 μg/m3 (34) 34.0
 
March 24, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 9.4 μg/m3 (39) 39.0
 
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) 12.3 μg/m3 (51) 51.0
 
March 24, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 7.0 μg/m3 (29) 29.0
 
March 24, 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) 10.2 μg/m3 (42) 42.0
 
March 24, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 39.0 μg/m3 (35) 14.3 μg/m3 (55) 55.0
 
March 24, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 46.0 μg/m3 (42) 14.1 μg/m3 (54) 54.0
 
March 24, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 38.0 μg/m3 (35) 12.1 μg/m3 (50) 50.0
 
March 24, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 51.0 μg/m3 (46) 8.0 μg/m3 (33) 46.0
 
March 24, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 50.0 μg/m3 (45) 8.0 μg/m3 (33) 45.0
 
March 24, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 37.0 μg/m3 (34) 7.5 μg/m3 (31) 34.0
 
March 23, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 42.0 μg/m3 (38) 8.9 μg/m3 (37) 38.0
 
March 23, 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) 8.9 μg/m3 (37) 37.0
 
March 23, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (29) 5.3 μg/m3 (22) 29.0
 
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) 5.8 μg/m3 (24) 24.0
 
March 23, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (31) 6.3 μg/m3 (26) 31.0
 
March 23, 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) 8.5 μg/m3 (35) 35.0
 
March 23, 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) 9.9 μg/m3 (41) 41.0
 
March 23, 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) 4.1 μg/m3 (17) 25.0
 
March 23, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 6.8 μg/m3 (28) 28.0
 
March 23, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 6.5 μg/m3 (27) 27.0
 
March 23, 2019, 1 p.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, noon N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 5.6 μg/m3 (23) 23.0
 
March 23, 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) 4.6 μg/m3 (19) 19.0
 
March 23, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 4.3 μg/m3 (18) 18.0
 
March 23, 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) 5.8 μg/m3 (24) 24.0
 
March 23, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 3.3 μg/m3 (14) 14.0
 
March 23, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 5.0 μg/m3 (21) 21.0
 
March 23, 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) 7.0 μg/m3 (29) 29.0
 
March 23, 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) 3.6 μg/m3 (15) 15.0
 
March 23, 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) 3.1 μg/m3 (13) 13.0
 
March 23, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 6.0 μg/m3 (25) 25.0
 
March 23, 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) 7.7 μg/m3 (32) 32.0
 
March 23, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 38.0 μg/m3 (35) 8.9 μg/m3 (37) 37.0
 
March 23, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 36.0 μg/m3 (33) 8.2 μg/m3 (34) 34.0
 
March 22, 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) 9.2 μg/m3 (38) 38.0
 
March 22, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 33.0 μg/m3 (30) 5.3 μg/m3 (22) 30.0
 
March 22, 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) 4.8 μg/m3 (20) 26.0
 
March 22, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 41.0 μg/m3 (37) 8.2 μg/m3 (34) 37.0
 
March 22, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (29) 8.9 μg/m3 (37) 37.0
 
March 22, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 38.0 μg/m3 (35) 4.3 μg/m3 (18) 35.0
 
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) 3.9 μg/m3 (16) 25.0
 
March 22, 2019, 4 p.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
 
March 22, 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) 4.1 μg/m3 (17) 17.0
 
March 22, 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) 4.3 μg/m3 (18) 18.0
 
March 22, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (24) 2.9 μg/m3 (12) 24.0
 
March 22, 2019, noon 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
 
March 22, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 4.8 μg/m3 (20) 20.0
 
March 22, 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) 5.5 μg/m3 (23) 23.0
 
March 22, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 8.5 μg/m3 (35) 35.0
 
March 22, 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) 9.6 μg/m3 (40) 40.0
 
March 22, 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) 7.2 μg/m3 (30) 30.0
 
March 22, 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) 7.0 μg/m3 (29) 29.0
 
March 22, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 13.6 μg/m3 (53) 53.0
 
March 22, 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) 11.8 μg/m3 (49) 49.0
 
March 22, 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) 9.4 μg/m3 (39) 39.0
 
March 22, 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) 14.1 μg/m3 (54) 54.0
 
March 22, 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) 7.0 μg/m3 (29) 29.0
 
March 22, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 8.9 μg/m3 (37) 37.0
 
March 21, 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) 9.7 μg/m3 (40) 40.0
 
March 21, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 10.4 μg/m3 (43) 43.0
 
March 21, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 42.0 μg/m3 (38) 10.9 μg/m3 (45) 45.0
 
March 21, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 44.0 μg/m3 (40) 13.3 μg/m3 (53) 53.0
 
March 21, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 47.0 μg/m3 (43) 10.7 μg/m3 (45) 45.0
 
March 21, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 40.0 μg/m3 (36) 9.9 μg/m3 (41) 41.0
 
March 21, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 45.0 μg/m3 (41) 15.3 μg/m3 (57) 57.0
 
March 21, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 42.0 μg/m3 (38) 10.6 μg/m3 (44) 44.0
 
March 21, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 10.6 μg/m3 (44) 44.0
 
March 21, 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) 8.0 μg/m3 (33) 33.0
 
March 21, 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) 8.5 μg/m3 (35) 35.0
 
March 21, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 4.8 μg/m3 (20) 20.0
 
March 21, 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) 4.8 μg/m3 (20) 20.0
 
March 21, 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) 4.1 μg/m3 (17) 17.0
 
March 21, 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) 6.5 μg/m3 (27) 27.0
 
March 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) 7.5 μg/m3 (31) 31.0
 
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) 3.1 μg/m3 (13) 13.0
 
March 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) 5.8 μg/m3 (24) 24.0
 
March 21, 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) 8.2 μg/m3 (34) 34.0
 
March 21, 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) 6.3 μg/m3 (26) 26.0
 
March 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) 6.3 μg/m3 (26) 26.0
 
March 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) 7.0 μg/m3 (29) 29.0
 
March 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) 8.5 μg/m3 (35) 35.0
 
March 21, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 5.8 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 15.0 μg/m3 (14) 4.1 μg/m3 (17) 17.0
 
March 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) 5.1 μg/m3 (21) 21.0
 
March 20, 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) 6.1 μg/m3 (25) 25.0
 
March 20, 2019, 8 p.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 (39) 39.0
 
March 20, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (23) 7.5 μg/m3 (31) 31.0
 
March 20, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 42.0 μg/m3 (38) 9.2 μg/m3 (38) 38.0
 
March 20, 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) 6.3 μg/m3 (26) 26.0
 
March 20, 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) 7.0 μg/m3 (29) 29.0
 
March 20, 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) 6.8 μg/m3 (28) 28.0
 
March 20, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 7.0 μg/m3 (29) 29.0
 
March 20, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 6.0 μg/m3 (25) 25.0
 
March 20, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 5.0 μg/m3 (21) 21.0
 
March 20, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
March 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) 10.1 μg/m3 (42) 42.0
 
March 20, 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) 9.4 μg/m3 (39) 39.0
 
March 20, 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) 12.1 μg/m3 (50) 50.0
 
March 20, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 12.1 μg/m3 (50) 50.0
 
March 20, 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 20, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 16.3 μg/m3 (59) 59.0
 
March 20, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (24) 19.0 μg/m3 (65) 65.0
 
March 20, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (23) 20.7 μg/m3 (69) 69.0
 
March 20, 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) 11.1 μg/m3 (46) 46.0
 
March 20, 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) 10.2 μg/m3 (42) 42.0
 
March 20, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 5.5 μg/m3 (23) 23.0
 
March 19, 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) 6.7 μg/m3 (28) 28.0
 
March 19, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (27) 5.0 μg/m3 (21) 27.0
 
March 19, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (29) 4.6 μg/m3 (19) 29.0
 
March 19, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (25) 5.8 μg/m3 (24) 25.0
 
March 19, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (22) 6.3 μg/m3 (26) 26.0
 
March 19, 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) 8.0 μg/m3 (33) 33.0
 
March 19, 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) 5.8 μg/m3 (24) 25.0
 
March 19, 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) 2.6 μg/m3 (11) 30.0
 
March 19, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 35.0 μg/m3 (32) 3.6 μg/m3 (15) 32.0
 
March 19, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 33.0 μg/m3 (30) 7.5 μg/m3 (31) 31.0
 
March 19, 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) 7.7 μg/m3 (32) 39.0
 
March 19, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (22) 3.8 μg/m3 (16) 22.0
 
March 19, 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) 5.5 μg/m3 (23) 23.0
 
March 19, 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) 4.1 μg/m3 (17) 17.0
 
March 19, 2019, 9 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
 
March 19, 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) 1.5 μg/m3 (6) 8.0
 
March 19, 2019, 7 a.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 19, 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) 4.6 μg/m3 (19) 19.0
 
March 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) -0.9 μg/m3 (0) 5.0
 
March 19, 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) 0.3 μg/m3 (1) 7.0
 
March 19, 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) 2.9 μg/m3 (12) 12.0
 
March 19, 2019, 2 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
 
March 19, 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) 4.3 μg/m3 (18) 18.0
 
March 19, 2019, midnight 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 18, 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) 6.0 μg/m3 (25) 25.0
 
March 18, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (24) 7.7 μg/m3 (32) 32.0
 
March 18, 2019, 9 p.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
 
March 18, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (25) 7.7 μg/m3 (32) 32.0
 
March 18, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (31) 8.7 μg/m3 (36) 36.0
 
March 18, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 38.0 μg/m3 (35) 8.0 μg/m3 (33) 35.0
 
March 18, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 54.0 μg/m3 (49) 8.0 μg/m3 (33) 49.0
 
March 18, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 48.0 μg/m3 (44) 9.9 μg/m3 (41) 44.0
 
March 18, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 38.0 μg/m3 (35) 13.1 μg/m3 (52) 52.0
 
March 18, 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) 15.5 μg/m3 (57) 57.0
 
March 18, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 40.0 μg/m3 (36) 15.0 μg/m3 (56) 56.0
 
March 18, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 50.0 μg/m3 (45) 16.3 μg/m3 (59) 59.0
 
March 18, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 43.0 μg/m3 (39) 21.4 μg/m3 (70) 70.0
 
March 18, 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) 10.1 μg/m3 (42) 42.0
 
March 18, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 8.9 μg/m3 (37) 37.0
 
March 18, 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) 7.5 μg/m3 (31) 31.0
 
March 18, 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) 6.3 μg/m3 (26) 26.0
 
March 18, 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) 7.5 μg/m3 (31) 31.0
 
March 18, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 8.9 μg/m3 (37) 37.0
 
March 18, 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) 8.0 μg/m3 (33) 33.0
 
March 18, 2019, 3 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 18, 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) 7.5 μg/m3 (31) 31.0
 
March 18, 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) 4.8 μg/m3 (20) 20.0
 
March 18, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 7.2 μg/m3 (30) 30.0