AQSQID: 011190003

Site Name: Ward

Location: Sumter Co, AL

Reporting: True, Located: True

Current AQI: 44.0

Sumter Co AL, US: 32.36253, -88.27792

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 23, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A N/A 8.8 μg/m3 (37) 44.0
 
March 23, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 9.4 μg/m3 (39) 42.0
 
March 23, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 7.6 μg/m3 (32) 42.0
 
March 23, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 7.1 μg/m3 (30) 40.0
 
March 23, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 23, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 20.6 μg/m3 (68) 68.0
 
March 23, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) N/A N/A 26.7 μg/m3 (81) 81.0
 
March 23, 2019, noon N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 23.5 μg/m3 (74) 74.0
 
March 23, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 20.8 μg/m3 (69) 69.0
 
March 23, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 17.4 μg/m3 (61) 61.0
 
March 23, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 16.1 μg/m3 (59) 59.0
 
March 23, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 13.2 μg/m3 (53) 53.0
 
March 23, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A N/A 13.2 μg/m3 (53) 53.0
 
March 23, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.7 μg/m3 (54) 54.0
 
March 23, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A 11.0 μg/m3 (46) 46.0
 
March 23, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A N/A 11.5 μg/m3 (48) 48.0
 
March 23, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A N/A 11.5 μg/m3 (48) 48.0
 
March 23, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 14.7 μg/m3 (56) 56.0
 
March 23, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 8.3 μg/m3 (35) 35.0
 
March 23, 2019, midnight N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 9.6 μg/m3 (40) 40.0
 
March 22, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 7.6 μg/m3 (32) 35.0
 
March 22, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 7.3 μg/m3 (30) 38.0
 
March 22, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 3.0 μg/m3 (12) 38.0
 
March 22, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 4.4 μg/m3 (18) 38.0
 
March 22, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 6.4 μg/m3 (27) 38.0
 
March 22, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 4.5 μg/m3 (19) 37.0
 
March 22, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 3.5 μg/m3 (15) 36.0
 
March 22, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 5.0 μg/m3 (21) 36.0
 
March 22, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 7.8 μg/m3 (32) 35.0
 
March 22, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 10.5 μg/m3 (44) 44.0
 
March 22, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 11.5 μg/m3 (48) 48.0
 
March 22, 2019, noon N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A N/A 10.5 μg/m3 (44) 44.0
 
March 22, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) N/A N/A 13.0 μg/m3 (52) 52.0
 
March 22, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A N/A 13.9 μg/m3 (54) 54.0
 
March 22, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A N/A 13.4 μg/m3 (53) 53.0
 
March 22, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 11.5 μg/m3 (48) 48.0
 
March 22, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 13.2 μg/m3 (53) 53.0
 
March 22, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.6 μg/m3 (40) 40.0
 
March 22, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 7.7 μg/m3 (32) 32.0
 
March 22, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 2.7 μg/m3 (11) 33.0
 
March 22, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 5.1 μg/m3 (21) 22.0
 
March 22, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 9.8 μg/m3 (41) 41.0
 
March 22, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 9.3 μg/m3 (39) 39.0
 
March 22, 2019, midnight N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 4.9 μg/m3 (20) 40.0
 
March 21, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 4.5 μg/m3 (19) 43.0
 
March 21, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 3.3 μg/m3 (14) 42.0
 
March 21, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 3.0 μg/m3 (12) 41.0
 
March 21, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 5.4 μg/m3 (23) 40.0
 
March 21, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 6.9 μg/m3 (29) 40.0
 
March 21, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 6.4 μg/m3 (27) 40.0
 
March 21, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 5.7 μg/m3 (24) 38.0
 
March 21, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 2.8 μg/m3 (12) 36.0
 
March 21, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 3.1 μg/m3 (13) 33.0
 
March 21, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 5.6 μg/m3 (23) 29.0
 
March 21, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 4.9 μg/m3 (20) 23.0
 
March 21, 2019, noon N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A N/A 3.2 μg/m3 (13) 13.0
 
March 21, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 3.7 μg/m3 (15) 15.0
 
March 21, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 5.6 μg/m3 (23) 23.0
 
March 21, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 6.1 μg/m3 (25) 33.0
 
March 21, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 5.7 μg/m3 (24) 38.0
 
March 21, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 6.2 μg/m3 (26) 40.0
 
March 21, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.9 μg/m3 (25) 25.0
 
March 21, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 11.8 μg/m3 (49) 49.0
 
March 21, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 25.9 μg/m3 (80) 80.0
 
March 21, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 22.5 μg/m3 (72) 72.0
 
March 21, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 24.4 μg/m3 (76) 76.0
 
March 21, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 21.3 μg/m3 (70) 70.0
 
March 21, 2019, midnight N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 20.1 μg/m3 (67) 67.0
 
March 20, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 18.1 μg/m3 (63) 63.0
 
March 20, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (50) N/A N/A 21.8 μg/m3 (71) 71.0
 
March 20, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (48) N/A N/A 15.4 μg/m3 (57) 57.0
 
March 20, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (47) N/A N/A 17.4 μg/m3 (61) 61.0
 
March 20, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (46) N/A N/A 15.0 μg/m3 (56) 56.0
 
March 20, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 17.4 μg/m3 (61) 61.0
 
March 20, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 18.9 μg/m3 (65) 65.0
 
March 20, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 19.9 μg/m3 (67) 67.0
 
March 20, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 22.1 μg/m3 (71) 71.0
 
March 20, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 20.1 μg/m3 (67) 67.0
 
March 20, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A N/A 14.4 μg/m3 (55) 55.0
 
March 20, 2019, noon N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A 16.4 μg/m3 (59) 59.0
 
March 20, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A 16.4 μg/m3 (59) 59.0
 
March 20, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A N/A 14.2 μg/m3 (55) 55.0
 
March 20, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) N/A N/A 14.9 μg/m3 (56) 56.0
 
March 20, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) N/A N/A 13.2 μg/m3 (53) 53.0
 
March 20, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) N/A N/A 11.1 μg/m3 (46) 46.0
 
March 20, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.3 μg/m3 (30) 30.0
 
March 20, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A N/A 14.2 μg/m3 (55) 55.0
 
March 20, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A N/A 15.2 μg/m3 (57) 57.0
 
March 20, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 11.8 μg/m3 (49) 49.0
 
March 20, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 11.5 μg/m3 (48) 48.0
 
March 20, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 11.6 μg/m3 (48) 48.0
 
March 20, 2019, midnight N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 12.0 μg/m3 (50) 50.0
 
March 19, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A N/A 8.8 μg/m3 (37) 45.0
 
March 19, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (49) N/A N/A 11.6 μg/m3 (48) 49.0
 
March 19, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (48) N/A N/A 8.4 μg/m3 (35) 48.0
 
March 19, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (47) N/A N/A 11.8 μg/m3 (49) 49.0
 
March 19, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A N/A 6.5 μg/m3 (27) 45.0
 
March 19, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 6.4 μg/m3 (27) 43.0
 
March 19, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 4.8 μg/m3 (20) 42.0
 
March 19, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 5.7 μg/m3 (24) 42.0
 
March 19, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 6.9 μg/m3 (29) 38.0
 
March 19, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 8.1 μg/m3 (34) 34.0
 
March 19, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 8.5 μg/m3 (35) 35.0
 
March 19, 2019, noon N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A 8.5 μg/m3 (35) 35.0
 
March 19, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A N/A 8.0 μg/m3 (33) 33.0
 
March 19, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A 6.8 μg/m3 (28) 28.0
 
March 19, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A N/A 9.3 μg/m3 (39) 39.0
 
March 19, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A N/A 8.8 μg/m3 (37) 37.0
 
March 19, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A N/A 11.0 μg/m3 (46) 46.0
 
March 19, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.3 μg/m3 (35) 35.0
 
March 19, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 11.7 μg/m3 (49) 49.0
 
March 19, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 10.8 μg/m3 (45) 45.0
 
March 19, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 7.1 μg/m3 (30) 31.0
 
March 19, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 11.0 μg/m3 (46) 46.0
 
March 19, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 13.5 μg/m3 (53) 53.0
 
March 19, 2019, midnight N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 8.8 μg/m3 (37) 37.0
 
March 18, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 7.1 μg/m3 (30) 36.0
 
March 18, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 8.4 μg/m3 (35) 40.0
 
March 18, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 9.2 μg/m3 (38) 42.0
 
March 18, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 7.1 μg/m3 (30) 42.0
 
March 18, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 9.4 μg/m3 (39) 40.0
 
March 18, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 11.1 μg/m3 (46) 46.0
 
March 18, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 3.1 μg/m3 (13) 39.0
 
March 18, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 1.9 μg/m3 (8) 37.0
 
March 18, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 4.0 μg/m3 (17) 33.0
 
March 18, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 7.6 μg/m3 (32) 32.0
 
March 18, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 18, 2019, noon N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A 6.3 μg/m3 (26) 26.0
 
March 18, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A 6.3 μg/m3 (26) 26.0
 
March 18, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A 4.7 μg/m3 (20) 20.0
 
March 18, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A 6.1 μg/m3 (25) 25.0
 
March 18, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A 7.1 μg/m3 (30) 30.0
 
March 18, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A N/A 6.1 μg/m3 (25) 25.0
 
March 18, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.1 μg/m3 (25) 25.0
 
March 18, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A N/A 6.6 μg/m3 (28) 28.0
 
March 18, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 18, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A N/A 7.4 μg/m3 (31) 31.0
 
March 18, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 6.9 μg/m3 (29) 29.0
 
March 18, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 8.3 μg/m3 (35) 35.0
 
March 18, 2019, midnight N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 5.7 μg/m3 (24) 28.0
 
March 17, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 5.4 μg/m3 (23) 35.0
 
March 17, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 5.4 μg/m3 (23) 35.0
 
March 17, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 5.2 μg/m3 (22) 38.0
 
March 17, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 3.5 μg/m3 (15) 39.0
 
March 17, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 1.9 μg/m3 (8) 39.0
 
March 17, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 4.3 μg/m3 (18) 38.0
 
March 17, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 4.5 μg/m3 (19) 37.0
 
March 17, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 1.8 μg/m3 (8) 35.0
 
March 17, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 1.3 μg/m3 (5) 32.0
 
March 17, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 4.0 μg/m3 (17) 29.0
 
March 17, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 4.9 μg/m3 (20) 20.0
 
March 17, 2019, noon N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A N/A 3.9 μg/m3 (16) 16.0
 
March 17, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A N/A 4.2 μg/m3 (18) 18.0
 
March 17, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A N/A 7.1 μg/m3 (30) 30.0
 
March 17, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A 8.6 μg/m3 (36) 36.0
 
March 17, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A 11.5 μg/m3 (48) 48.0
 
March 17, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A 9.3 μg/m3 (39) 39.0
 
March 17, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.1 μg/m3 (21) 21.0
 
March 17, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A N/A 3.2 μg/m3 (13) 13.0
 
March 17, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A N/A 6.6 μg/m3 (28) 28.0
 
March 17, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) N/A N/A 5.4 μg/m3 (23) 23.0
 
March 17, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A N/A 3.2 μg/m3 (13) 13.0
 
March 17, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 5.2 μg/m3 (22) 22.0
 
March 17, 2019, midnight N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 7.1 μg/m3 (30) 30.0
 
March 16, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 5.7 μg/m3 (24) 28.0
 
March 16, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 5.0 μg/m3 (21) 33.0
 
March 16, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 4.8 μg/m3 (20) 35.0
 
March 16, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 7.9 μg/m3 (33) 35.0