AQSQID: 450630008

Site Name: Irmo

Location: Columbia (Seven Oaks), SC

Reporting: True, Located: True

Current AQI: 24.0

Columbia (Seven Oaks) SC, US: 34.051102, -81.154999

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
April 1, 2020, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 5.8 μg/m3 (24) 24.0
 
April 1, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 1.7 μg/m3 (7) 7.0
 
April 1, 2020, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
April 1, 2020, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.2 μg/m3 (18) 18.0
 
April 1, 2020, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 1.4 μg/m3 (6) 6.0
 
April 1, 2020, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
April 1, 2020, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 3.2 μg/m3 (13) 13.0
 
April 1, 2020, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 6.2 μg/m3 (26) 26.0
 
April 1, 2020, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 9.2 μg/m3 (38) 38.0
 
April 1, 2020, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 8.6 μg/m3 (36) 36.0
 
March 31, 2020, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 8.8 μg/m3 (37) 37.0
 
March 31, 2020, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 11.2 μg/m3 (47) 47.0
 
March 31, 2020, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 1.6 μg/m3 (7) 7.0
 
March 31, 2020, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A -1.3 μg/m3 (0) N/A
March 31, 2020, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 10.1 μg/m3 (42) 42.0
 
March 31, 2020, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
March 31, 2020, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A -2.9 μg/m3 (0) N/A
March 31, 2020, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A -2.4 μg/m3 (0) N/A
March 31, 2020, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A
March 31, 2020, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A -4.7 μg/m3 (0) N/A
March 31, 2020, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A -0.9 μg/m3 (0) N/A
March 31, 2020, noon N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 9.9 μg/m3 (41) 41.0
 
March 31, 2020, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 12.7 μg/m3 (51) 51.0
 
March 31, 2020, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 7.5 μg/m3 (31) 31.0
 
March 31, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 6.3 μg/m3 (26) 26.0
 
March 31, 2020, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 10.7 μg/m3 (45) 45.0
 
March 31, 2020, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 14.1 μg/m3 (54) 54.0
 
March 31, 2020, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 15.4 μg/m3 (57) 57.0
 
March 31, 2020, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
March 31, 2020, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 12.9 μg/m3 (52) 52.0
 
March 31, 2020, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 13.0 μg/m3 (52) 52.0
 
March 31, 2020, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 9.4 μg/m3 (39) 39.0
 
March 31, 2020, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 19.3 μg/m3 (66) 66.0
 
March 30, 2020, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 15.8 μg/m3 (58) 58.0
 
March 30, 2020, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A
March 30, 2020, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A
March 30, 2020, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 1.8 μg/m3 (8) 8.0
 
March 30, 2020, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 8.7 μg/m3 (36) 36.0
 
March 30, 2020, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 5.2 μg/m3 (22) 22.0
 
March 30, 2020, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A
March 30, 2020, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A
March 30, 2020, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A
March 30, 2020, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A
March 30, 2020, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A
March 30, 2020, noon N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
March 30, 2020, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
March 30, 2020, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 8.2 μg/m3 (34) 34.0
 
March 30, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 5.6 μg/m3 (23) 23.0
 
March 30, 2020, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A -4.5 μg/m3 (0) N/A
March 30, 2020, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.9 μg/m3 (20) 20.0
 
March 30, 2020, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A
March 30, 2020, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 1.8 μg/m3 (8) 8.0
 
March 30, 2020, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 5.3 μg/m3 (22) 22.0
 
March 30, 2020, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 5.4 μg/m3 (23) 23.0
 
March 30, 2020, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 0.7 μg/m3 (3) 3.0
 
March 30, 2020, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 15.5 μg/m3 (57) 57.0
 
March 29, 2020, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 12.6 μg/m3 (51) 51.0
 
March 29, 2020, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 17.5 μg/m3 (62) 62.0
 
March 29, 2020, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 24.0 μg/m3 (76) 76.0
 
March 29, 2020, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 21.0 μg/m3 (69) 69.0
 
March 29, 2020, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 15.0 μg/m3 (56) 56.0
 
March 29, 2020, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 18.4 μg/m3 (64) 64.0
 
March 29, 2020, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 23.2 μg/m3 (74) 74.0
 
March 29, 2020, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 18.8 μg/m3 (64) 64.0
 
March 29, 2020, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 20.2 μg/m3 (67) 67.0
 
March 29, 2020, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 21.7 μg/m3 (71) 71.0
 
March 29, 2020, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 18.9 μg/m3 (65) 65.0
 
March 29, 2020, noon N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 22.2 μg/m3 (72) 72.0
 
March 29, 2020, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 19.7 μg/m3 (66) 66.0
 
March 29, 2020, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 14.9 μg/m3 (56) 56.0
 
March 29, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 23.3 μg/m3 (74) 74.0
 
March 29, 2020, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 28.2 μg/m3 (84) 84.0
 
March 29, 2020, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 29.6 μg/m3 (87) 87.0
 
March 29, 2020, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 29.4 μg/m3 (87) 87.0
 
March 29, 2020, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 25.0 μg/m3 (78) 78.0
 
March 29, 2020, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 21.6 μg/m3 (70) 70.0
 
March 29, 2020, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 7.9 μg/m3 (33) 33.0
 
March 29, 2020, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 15.2 μg/m3 (57) 57.0
 
March 29, 2020, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 16.3 μg/m3 (59) 59.0
 
March 28, 2020, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 14.2 μg/m3 (55) 55.0
 
March 28, 2020, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 15.1 μg/m3 (57) 57.0
 
March 28, 2020, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 8.3 μg/m3 (35) 35.0
 
March 28, 2020, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 11.8 μg/m3 (49) 49.0
 
March 28, 2020, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 7.6 μg/m3 (32) 32.0
 
March 28, 2020, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 15.1 μg/m3 (57) 57.0
 
March 28, 2020, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 5.8 μg/m3 (24) 24.0
 
March 28, 2020, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 17.6 μg/m3 (62) 62.0
 
March 28, 2020, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 19.6 μg/m3 (66) 66.0
 
March 28, 2020, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 9.9 μg/m3 (41) 41.0
 
March 28, 2020, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 0.9 μg/m3 (4) 4.0
 
March 28, 2020, noon N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 27.4 μg/m3 (83) 83.0
 
March 28, 2020, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 34.8 μg/m3 (99) 99.0
 
March 28, 2020, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 25.3 μg/m3 (78) 78.0
 
March 28, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 26.5 μg/m3 (81) 81.0
 
March 28, 2020, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 28.2 μg/m3 (84) 84.0
 
March 28, 2020, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 23.7 μg/m3 (75) 75.0
 
March 28, 2020, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 23.5 μg/m3 (74) 74.0
 
March 28, 2020, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 18.5 μg/m3 (64) 64.0
 
March 28, 2020, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 21.6 μg/m3 (70) 70.0
 
March 28, 2020, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 28.3 μg/m3 (85) 85.0
 
March 28, 2020, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 32.3 μg/m3 (93) 93.0
 
March 28, 2020, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 24.9 μg/m3 (77) 77.0
 
March 27, 2020, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 29.9 μg/m3 (88) 88.0
 
March 27, 2020, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 28.3 μg/m3 (85) 85.0
 
March 27, 2020, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 17.5 μg/m3 (62) 62.0
 
March 27, 2020, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 30.1 μg/m3 (89) 89.0
 
March 27, 2020, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A
March 27, 2020, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 8.3 μg/m3 (35) 35.0
 
March 27, 2020, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 11.6 μg/m3 (48) 48.0
 
March 27, 2020, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 16.6 μg/m3 (60) 60.0
 
March 27, 2020, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 15.9 μg/m3 (58) 58.0
 
March 27, 2020, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 9.4 μg/m3 (39) 39.0
 
March 27, 2020, noon N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 2.6 μg/m3 (11) 11.0
 
March 27, 2020, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
March 27, 2020, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.4 μg/m3 (18) 18.0
 
March 27, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 5.3 μg/m3 (22) 22.0
 
March 27, 2020, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 2.1 μg/m3 (9) 9.0
 
March 27, 2020, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 1.9 μg/m3 (8) 8.0
 
March 27, 2020, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 6.3 μg/m3 (26) 26.0
 
March 27, 2020, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 8.6 μg/m3 (36) 36.0
 
March 27, 2020, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 3.2 μg/m3 (13) 13.0
 
March 27, 2020, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.2 μg/m3 (18) 18.0
 
March 27, 2020, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
March 27, 2020, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 7.5 μg/m3 (31) 31.0
 
March 26, 2020, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 12.7 μg/m3 (51) 51.0
 
March 26, 2020, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 8.2 μg/m3 (34) 34.0
 
March 26, 2020, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A
March 26, 2020, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A -0.4 μg/m3 (0) N/A
March 26, 2020, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 3.7 μg/m3 (15) 15.0
 
March 26, 2020, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 3.6 μg/m3 (15) 15.0
 
March 26, 2020, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 5.2 μg/m3 (22) 22.0
 
March 26, 2020, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 2.8 μg/m3 (12) 12.0
 
March 26, 2020, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
March 26, 2020, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A -4.2 μg/m3 (0) N/A
March 26, 2020, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A -2.2 μg/m3 (0) N/A
March 26, 2020, noon N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 0.7 μg/m3 (3) 3.0
 
March 26, 2020, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A -4.8 μg/m3 (0) N/A
March 26, 2020, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A
March 26, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A -4.8 μg/m3 (0) N/A
March 26, 2020, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A -1.9 μg/m3 (0) N/A
March 26, 2020, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A -3.8 μg/m3 (0) N/A
March 26, 2020, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A -4.1 μg/m3 (0) N/A
March 26, 2020, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 1.1 μg/m3 (5) 5.0
 
March 26, 2020, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 8.2 μg/m3 (34) 34.0
 
March 26, 2020, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 14.9 μg/m3 (56) 56.0
 
March 26, 2020, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 12.3 μg/m3 (51) 51.0
 
March 26, 2020, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 7.8 μg/m3 (32) 32.0
 
March 25, 2020, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 10.3 μg/m3 (43) 43.0
 
March 25, 2020, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 7.9 μg/m3 (33) 33.0
 
March 25, 2020, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A -1.7 μg/m3 (0) N/A
March 25, 2020, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A -0.3 μg/m3 (0) N/A
March 25, 2020, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 3.5 μg/m3 (15) 15.0
 
March 25, 2020, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A -1.6 μg/m3 (0) N/A
March 25, 2020, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 0.2 μg/m3 (1) 1.0
 
March 25, 2020, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 2.1 μg/m3 (9) 9.0
 
March 25, 2020, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 0.0 μg/m3 (0) N/A
March 25, 2020, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.6 μg/m3 (19) 19.0
 
March 25, 2020, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
March 25, 2020, noon N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 6.4 μg/m3 (27) 27.0
 
March 25, 2020, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 11.8 μg/m3 (49) 49.0
 
March 25, 2020, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 7.1 μg/m3 (30) 30.0
 
March 25, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.2 μg/m3 (18) 18.0
 
March 25, 2020, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 18.4 μg/m3 (64) 64.0
 
March 25, 2020, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 18.7 μg/m3 (64) 64.0
 
March 25, 2020, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 14.0 μg/m3 (54) 54.0
 
March 25, 2020, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 6.8 μg/m3 (28) 28.0
 
March 25, 2020, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 0.5 μg/m3 (2) 2.0
 
March 25, 2020, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A -3.8 μg/m3 (0) N/A