AQSQID: 461270001

Site Name: Uc1

Location: Elk Point (475th Ave), SD

Reporting: True, Located: True

Current AQI: 23.0

Elk Point (475th Ave) SD, US: 42.751518, -96.707208

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
April 10, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 5.5 μg/m3 (23) 23.0
 
April 10, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 4.4 μg/m3 (18) 18.0
 
April 10, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 5.1 μg/m3 (21) 21.0
 
April 9, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 3.9 μg/m3 (16) 16.0
 
April 9, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 37.0 μg/m3 (34) 3.1 μg/m3 (13) 34.0
 
April 9, 2020, 9 p.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
 
April 9, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 37.0 μg/m3 (34) 4.4 μg/m3 (18) 34.0
 
April 9, 2020, 7 p.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
 
April 9, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 50.0 μg/m3 (45) 8.2 μg/m3 (34) 45.0
 
April 9, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 5.3 μg/m3 (22) 22.0
 
April 9, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (27) 3.9 μg/m3 (16) 27.0
 
April 9, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 65.0 μg/m3 (55) N/A 55.0
 
April 9, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A N/A 26.0
 
April 9, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 50.0 μg/m3 (45) 5.1 μg/m3 (21) 45.0
 
April 9, 2020, noon N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 6.0 μg/m3 (5) 1.9 μg/m3 (8) 28.0
 
April 9, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 6.0 μg/m3 (5) 1.6 μg/m3 (7) 27.0
 
April 9, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 6.0 μg/m3 (5) 1.4 μg/m3 (6) 25.0
 
April 9, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 5.0 μg/m3 (5) 4.1 μg/m3 (17) 25.0
 
April 9, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 9.0 μg/m3 (8) 7.4 μg/m3 (31) 31.0
 
April 9, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 13.0 μg/m3 (12) 6.3 μg/m3 (26) 26.0
 
April 9, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 11.0 μg/m3 (10) 6.9 μg/m3 (29) 29.0
 
April 9, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 12.0 μg/m3 (11) 1.6 μg/m3 (7) 26.0
 
April 9, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 12.0 μg/m3 (11) 3.4 μg/m3 (14) 27.0
 
April 9, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 10.0 μg/m3 (9) 6.3 μg/m3 (26) 26.0
 
April 9, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 26.0 μg/m3 (24) 6.3 μg/m3 (26) 28.0
 
April 9, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 9.0 μg/m3 (8) 4.8 μg/m3 (20) 28.0
 
April 9, 2020, midnight N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 9.0 μg/m3 (8) 5.1 μg/m3 (21) 35.0
 
April 8, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 22.0 μg/m3 (20) 5.1 μg/m3 (21) 38.0
 
April 8, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 37.0 μg/m3 (34) 5.3 μg/m3 (22) 38.0
 
April 8, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 66.0 μg/m3 (56) 8.4 μg/m3 (35) 56.0
 
April 8, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 19.0 μg/m3 (17) 4.6 μg/m3 (19) 38.0
 
April 8, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 21.0 μg/m3 (19) 3.9 μg/m3 (16) 38.0
 
April 8, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 26.0 μg/m3 (24) 6.0 μg/m3 (25) 35.0
 
April 8, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 19.0 μg/m3 (17) 8.4 μg/m3 (35) 35.0
 
April 8, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 42.0 μg/m3 (38) 9.9 μg/m3 (41) 41.0
 
April 8, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 55.0 μg/m3 (50) 6.3 μg/m3 (26) 50.0
 
April 8, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 26.0 μg/m3 (24) 6.0 μg/m3 (25) 25.0
 
April 8, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 19.0 μg/m3 (17) 10.2 μg/m3 (42) 42.0
 
April 8, 2020, noon N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 31.0 μg/m3 (28) 13.3 μg/m3 (53) 53.0
 
April 8, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 20.0 μg/m3 (18) 12.8 μg/m3 (52) 52.0
 
April 8, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 22.0 μg/m3 (20) 12.6 μg/m3 (51) 51.0
 
April 8, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 24.0 μg/m3 (22) 10.9 μg/m3 (45) 45.0
 
April 8, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 17.0 μg/m3 (15) 8.1 μg/m3 (34) 34.0
 
April 8, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 15.0 μg/m3 (14) 11.9 μg/m3 (50) 50.0
 
April 8, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 18.0 μg/m3 (16) 11.6 μg/m3 (48) 48.0
 
April 8, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 22.0 μg/m3 (20) 6.5 μg/m3 (27) 27.0
 
April 8, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 30.0 μg/m3 (27) 6.9 μg/m3 (29) 29.0
 
April 8, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 20.0 μg/m3 (18) 6.9 μg/m3 (29) 29.0
 
April 8, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 25.0 μg/m3 (23) 9.2 μg/m3 (38) 38.0
 
April 8, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 18.0 μg/m3 (16) 8.2 μg/m3 (34) 34.0
 
April 8, 2020, midnight N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 35.0 μg/m3 (32) 6.7 μg/m3 (28) 33.0
 
April 7, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 44.0 μg/m3 (40) 7.4 μg/m3 (31) 40.0
 
April 7, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 16.0 μg/m3 (15) 8.2 μg/m3 (34) 40.0
 
April 7, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A 62.0 μg/m3 (54) 7.2 μg/m3 (30) 54.0
 
April 7, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 82.0 μg/m3 (64) 6.7 μg/m3 (28) 64.0
 
April 7, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 35.0 μg/m3 (32) 8.9 μg/m3 (37) 38.0
 
April 7, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 19.0 μg/m3 (17) 6.3 μg/m3 (26) 35.0
 
April 7, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 22.0 μg/m3 (20) 8.2 μg/m3 (34) 34.0
 
April 7, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 25.0 μg/m3 (23) 13.6 μg/m3 (53) 53.0
 
April 7, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 58.0 μg/m3 (52) 12.4 μg/m3 (51) 52.0
 
April 7, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 25.0 μg/m3 (23) 10.9 μg/m3 (45) 45.0
 
April 7, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 8.0 μg/m3 (7) 6.7 μg/m3 (28) 28.0
 
April 7, 2020, noon N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A 13.0 μg/m3 (12) 10.9 μg/m3 (45) 45.0
 
April 7, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 14.0 μg/m3 (13) 9.9 μg/m3 (41) 41.0
 
April 7, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) N/A 11.0 μg/m3 (10) 9.9 μg/m3 (41) 41.0
 
April 7, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A 14.0 μg/m3 (13) 13.3 μg/m3 (53) 53.0
 
April 7, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A 12.0 μg/m3 (11) 15.3 μg/m3 (57) 57.0
 
April 7, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 15.0 μg/m3 (14) 10.9 μg/m3 (45) 45.0
 
April 7, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 13.0 μg/m3 (12) 10.2 μg/m3 (42) 42.0
 
April 7, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 16.0 μg/m3 (15) 11.1 μg/m3 (46) 46.0
 
April 7, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 20.0 μg/m3 (18) 12.6 μg/m3 (51) 51.0
 
April 7, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 17.0 μg/m3 (15) 10.4 μg/m3 (43) 43.0
 
April 7, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 23.0 μg/m3 (21) 9.4 μg/m3 (39) 39.0
 
April 7, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 20.0 μg/m3 (18) 7.7 μg/m3 (32) 32.0
 
April 7, 2020, midnight N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 33.0 μg/m3 (30) 7.4 μg/m3 (31) 31.0
 
April 6, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 18.0 μg/m3 (16) 8.7 μg/m3 (36) 36.0
 
April 6, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 18.0 μg/m3 (16) 8.9 μg/m3 (37) 37.0
 
April 6, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 23.0 μg/m3 (21) 8.4 μg/m3 (35) 35.0
 
April 6, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 21.0 μg/m3 (19) 7.9 μg/m3 (33) 33.0
 
April 6, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 18.0 μg/m3 (16) 7.4 μg/m3 (31) 31.0
 
April 6, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 19.0 μg/m3 (17) 10.4 μg/m3 (43) 43.0
 
April 6, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 24.0 μg/m3 (22) 16.4 μg/m3 (59) 59.0
 
April 6, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 26.0 μg/m3 (24) 14.3 μg/m3 (55) 55.0
 
April 6, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 25.0 μg/m3 (23) 19.0 μg/m3 (65) 65.0
 
April 6, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 18.0 μg/m3 (16) 13.8 μg/m3 (54) 54.0
 
April 6, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 15.0 μg/m3 (14) 13.6 μg/m3 (53) 53.0
 
April 6, 2020, noon N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 15.0 μg/m3 (14) 14.3 μg/m3 (55) 55.0
 
April 6, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 9.0 μg/m3 (8) 13.1 μg/m3 (52) 52.0
 
April 6, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 10.0 μg/m3 (9) 9.1 μg/m3 (38) 38.0
 
April 6, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 8.0 μg/m3 (7) 6.4 μg/m3 (27) 27.0
 
April 6, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 17.0 μg/m3 (15) 8.4 μg/m3 (35) 35.0
 
April 6, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 17.0 μg/m3 (15) 15.8 μg/m3 (58) 58.0
 
April 6, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 9.0 μg/m3 (8) 8.4 μg/m3 (35) 35.0
 
April 6, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 14.0 μg/m3 (13) 9.9 μg/m3 (41) 41.0
 
April 6, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 15.0 μg/m3 (14) 8.7 μg/m3 (36) 36.0
 
April 6, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 20.0 μg/m3 (18) 12.8 μg/m3 (52) 52.0
 
April 6, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 18.0 μg/m3 (16) 8.9 μg/m3 (37) 37.0
 
April 6, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 16.0 μg/m3 (15) 7.7 μg/m3 (32) 32.0
 
April 6, 2020, midnight N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 16.0 μg/m3 (15) 7.2 μg/m3 (30) 34.0
 
April 5, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 23.0 μg/m3 (21) 7.0 μg/m3 (29) 35.0
 
April 5, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 15.0 μg/m3 (14) 11.2 μg/m3 (47) 47.0
 
April 5, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 11.0 μg/m3 (10) 11.2 μg/m3 (47) 47.0
 
April 5, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 9.0 μg/m3 (8) 5.5 μg/m3 (23) 34.0
 
April 5, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 3.0 μg/m3 (3) 3.1 μg/m3 (13) 33.0
 
April 5, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 6.0 μg/m3 (5) 2.9 μg/m3 (12) 32.0
 
April 5, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 6.0 μg/m3 (5) 5.1 μg/m3 (21) 29.0
 
April 5, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 4.0 μg/m3 (4) 7.4 μg/m3 (31) 31.0
 
April 5, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 5.0 μg/m3 (5) 5.8 μg/m3 (24) 24.0
 
April 5, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 4.0 μg/m3 (4) 6.0 μg/m3 (25) 25.0
 
April 5, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 7.0 μg/m3 (6) 7.2 μg/m3 (30) 30.0
 
April 5, 2020, noon N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 10.0 μg/m3 (9) 7.9 μg/m3 (33) 33.0
 
April 5, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 13.0 μg/m3 (12) 9.1 μg/m3 (38) 38.0
 
April 5, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 8.0 μg/m3 (7) 13.8 μg/m3 (54) 54.0
 
April 5, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 13.0 μg/m3 (12) 8.9 μg/m3 (37) 37.0
 
April 5, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 13.0 μg/m3 (12) 12.1 μg/m3 (50) 50.0
 
April 5, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 10.0 μg/m3 (9) 8.6 μg/m3 (36) 36.0
 
April 5, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 16.0 μg/m3 (15) 6.4 μg/m3 (27) 27.0
 
April 5, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 10.0 μg/m3 (9) 8.2 μg/m3 (34) 34.0
 
April 5, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 8.0 μg/m3 (7) 9.6 μg/m3 (40) 40.0
 
April 5, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 9.0 μg/m3 (8) 5.5 μg/m3 (23) 23.0
 
April 5, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 8.0 μg/m3 (7) 7.4 μg/m3 (31) 31.0
 
April 5, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 11.0 μg/m3 (10) 6.0 μg/m3 (25) 26.0
 
April 5, 2020, midnight N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 14.0 μg/m3 (13) 6.0 μg/m3 (25) 32.0
 
April 4, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 10.0 μg/m3 (9) 8.4 μg/m3 (35) 35.0
 
April 4, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 7.0 μg/m3 (6) 7.4 μg/m3 (31) 35.0
 
April 4, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 4.0 μg/m3 (4) 6.2 μg/m3 (26) 35.0
 
April 4, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 6.0 μg/m3 (5) 4.1 μg/m3 (17) 34.0
 
April 4, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 8.0 μg/m3 (7) 4.6 μg/m3 (19) 33.0
 
April 4, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 6.0 μg/m3 (5) 3.9 μg/m3 (16) 32.0
 
April 4, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 5.0 μg/m3 (5) 6.2 μg/m3 (26) 28.0
 
April 4, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 4.0 μg/m3 (4) 6.7 μg/m3 (28) 28.0
 
April 4, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 7.0 μg/m3 (6) 6.4 μg/m3 (27) 27.0
 
April 4, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 8.0 μg/m3 (7) 8.1 μg/m3 (34) 34.0
 
April 4, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 11.0 μg/m3 (10) 9.9 μg/m3 (41) 41.0
 
April 4, 2020, noon N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 9.0 μg/m3 (8) 2.8 μg/m3 (12) 12.0
 
April 4, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 6.0 μg/m3 (5) 5.3 μg/m3 (22) 22.0
 
April 4, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 6.0 μg/m3 (5) 5.5 μg/m3 (23) 23.0
 
April 4, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 7.0 μg/m3 (6) 4.8 μg/m3 (20) 20.0
 
April 4, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 6.0 μg/m3 (5) 4.8 μg/m3 (20) 20.0
 
April 4, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 9.0 μg/m3 (8) 6.5 μg/m3 (27) 27.0
 
April 4, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 10.0 μg/m3 (9) 10.2 μg/m3 (42) 42.0
 
April 4, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 3.0 μg/m3 (3) 6.9 μg/m3 (29) 29.0
 
April 4, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 3.0 μg/m3 (3) 6.9 μg/m3 (29) 29.0
 
April 4, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 3.0 μg/m3 (3) 4.6 μg/m3 (19) 28.0
 
April 4, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 4.0 μg/m3 (4) 3.9 μg/m3 (16) 28.0
 
April 4, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 5.0 μg/m3 (5) 6.4 μg/m3 (27) 28.0
 
April 4, 2020, midnight N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 5.0 μg/m3 (5) 9.1 μg/m3 (38) 38.0
 
April 3, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 6.0 μg/m3 (5) 7.4 μg/m3 (31) 31.0
 
April 3, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 8.0 μg/m3 (7) 9.1 μg/m3 (38) 38.0
 
April 3, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 5.0 μg/m3 (5) 5.8 μg/m3 (24) 28.0
 
April 3, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 8.0 μg/m3 (7) 5.5 μg/m3 (23) 28.0
 
April 3, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 8.0 μg/m3 (7) 7.2 μg/m3 (30) 30.0
 
April 3, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 10.0 μg/m3 (9) 4.6 μg/m3 (19) 28.0
 
April 3, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 7.0 μg/m3 (6) 6.7 μg/m3 (28) 28.0
 
April 3, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 8.0 μg/m3 (7) 9.6 μg/m3 (40) 40.0
 
April 3, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 9.0 μg/m3 (8) 5.3 μg/m3 (22) 25.0
 
April 3, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 3.0 μg/m3 (3) 5.8 μg/m3 (24) 25.0
 
April 3, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 6.0 μg/m3 (5) 7.2 μg/m3 (30) 30.0
 
April 3, 2020, noon N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 6.0 μg/m3 (5) 9.9 μg/m3 (41) 41.0
 
April 3, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 8.0 μg/m3 (7) 7.9 μg/m3 (33) 33.0
 
April 3, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 7.0 μg/m3 (6) 4.6 μg/m3 (19) 24.0
 
April 3, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 11.0 μg/m3 (10) 5.1 μg/m3 (21) 23.0
 
April 3, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 11.0 μg/m3 (10) 9.4 μg/m3 (39) 39.0
 
April 3, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 9.0 μg/m3 (8) 8.4 μg/m3 (35) 35.0
 
April 3, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 6.0 μg/m3 (5) 6.3 μg/m3 (26) 26.0
 
April 3, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 5.0 μg/m3 (5) 4.6 μg/m3 (19) 22.0
 
April 3, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 0.0 μg/m3 (0) 3.8 μg/m3 (16) 22.0
 
April 3, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 1.0 μg/m3 (1) 5.1 μg/m3 (21) 22.0