AQSQID: 220870007

Site Name: Chalmette Vista

Location: St. Bernard Parish, LA

Reporting: True, Located: True

Current AQI: 51.0

St. Bernard Parish LA, US: 29.9431, -89.9761

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 22, 2019, 6 a.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A N/A N/A 12.6 μg/m3 (51) 51.0
 
March 22, 2019, 5 a.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A N/A N/A 12.7 μg/m3 (51) 51.0
 
March 22, 2019, 4 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 11.5 μg/m3 (48) 48.0
 
March 22, 2019, 3 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
March 22, 2019, 2 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
March 22, 2019, 1 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 8.1 μg/m3 (34) 34.0
 
March 22, 2019, midnight N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 10.1 μg/m3 (42) 42.0
 
March 21, 2019, 11 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 11.1 μg/m3 (46) 46.0
 
March 21, 2019, 10 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 8.3 μg/m3 (35) 35.0
 
March 21, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 7.2 μg/m3 (30) 30.0
 
March 21, 2019, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 10.1 μg/m3 (42) 42.0
 
March 21, 2019, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 13.2 μg/m3 (53) 53.0
 
March 21, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 16.2 μg/m3 (59) 59.0
 
March 21, 2019, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 12.9 μg/m3 (52) 52.0
 
March 21, 2019, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 16.1 μg/m3 (59) 59.0
 
March 21, 2019, 3 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 15.6 μg/m3 (58) 58.0
 
March 21, 2019, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 17.0 μg/m3 (61) 61.0
 
March 21, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 10.1 μg/m3 (42) 42.0
 
March 21, 2019, noon N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 10.5 μg/m3 (44) 44.0
 
March 21, 2019, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 11.9 μg/m3 (50) 50.0
 
March 21, 2019, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 15.5 μg/m3 (57) 57.0
 
March 21, 2019, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 17.4 μg/m3 (61) 61.0
 
March 21, 2019, 8 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 13.5 μg/m3 (53) 53.0
 
March 21, 2019, 7 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A N/A N/A 17.4 μg/m3 (61) 61.0
 
March 21, 2019, 6 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A N/A N/A 15.1 μg/m3 (57) 57.0
 
March 21, 2019, 5 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 18.2 μg/m3 (63) 63.0
 
March 21, 2019, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 16.9 μg/m3 (60) 60.0
 
March 21, 2019, 3 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 16.7 μg/m3 (60) 60.0
 
March 21, 2019, 2 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 21.6 μg/m3 (70) 70.0
 
March 21, 2019, 1 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 14.7 μg/m3 (56) 56.0
 
March 21, 2019, midnight N/A N/A N/A N/A N/A 2.0 ppb (3) N/A 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 1.0 ppb (1) N/A N/A N/A 17.6 μg/m3 (62) 62.0
 
March 20, 2019, 10 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 14.5 μg/m3 (55) 55.0
 
March 20, 2019, 9 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 23.9 μg/m3 (75) 75.0
 
March 20, 2019, 8 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 18.4 μg/m3 (64) 64.0
 
March 20, 2019, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 20.8 μg/m3 (69) 69.0
 
March 20, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 25.1 μg/m3 (78) 78.0
 
March 20, 2019, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 21.1 μg/m3 (69) 69.0
 
March 20, 2019, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 29.8 μg/m3 (88) 88.0
 
March 20, 2019, 3 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 27.6 μg/m3 (83) 83.0
 
March 20, 2019, 2 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 34.0 μg/m3 (97) 97.0
 
March 20, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 24.6 μg/m3 (77) 77.0
 
March 20, 2019, noon N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 16.2 μg/m3 (59) 59.0
 
March 20, 2019, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 13.6 μg/m3 (53) 53.0
 
March 20, 2019, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 12.1 μg/m3 (50) 50.0
 
March 20, 2019, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 12.2 μg/m3 (50) 50.0
 
March 20, 2019, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 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 1.0 ppb (1) N/A N/A N/A 15.0 μg/m3 (56) 56.0
 
March 20, 2019, 6 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 23.2 μg/m3 (74) 74.0
 
March 20, 2019, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 12.6 μg/m3 (51) 51.0
 
March 20, 2019, 4 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 12.4 μg/m3 (51) 51.0
 
March 20, 2019, 3 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 10.8 μg/m3 (45) 45.0
 
March 20, 2019, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 7.6 μg/m3 (32) 32.0
 
March 20, 2019, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 6.4 μg/m3 (27) 27.0
 
March 20, 2019, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 7.3 μg/m3 (30) 30.0
 
March 19, 2019, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 7.7 μg/m3 (32) 32.0
 
March 19, 2019, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 6.8 μg/m3 (28) 28.0
 
March 19, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 15.2 μg/m3 (57) 57.0
 
March 19, 2019, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 9.4 μg/m3 (39) 39.0
 
March 19, 2019, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 15.6 μg/m3 (58) 58.0
 
March 19, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 11.6 μg/m3 (48) 48.0
 
March 19, 2019, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A 1.0
 
March 19, 2019, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 11.6 μg/m3 (48) 48.0
 
March 19, 2019, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 11.8 μg/m3 (49) 49.0
 
March 19, 2019, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 11.3 μg/m3 (47) 47.0
 
March 19, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 12.7 μg/m3 (51) 51.0
 
March 19, 2019, noon N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 11.1 μg/m3 (46) 46.0
 
March 19, 2019, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 11.5 μg/m3 (48) 48.0
 
March 19, 2019, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 12.2 μg/m3 (50) 50.0
 
March 19, 2019, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 11.7 μg/m3 (49) 49.0
 
March 19, 2019, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 12.7 μg/m3 (51) 51.0
 
March 19, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 31.1 μg/m3 (91) 91.0
 
March 19, 2019, 6 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 23.7 μg/m3 (75) 75.0
 
March 19, 2019, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 22.3 μg/m3 (72) 72.0
 
March 19, 2019, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 16.8 μg/m3 (60) 60.0
 
March 19, 2019, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 20.4 μg/m3 (68) 68.0
 
March 19, 2019, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 10.9 μg/m3 (45) 45.0
 
March 19, 2019, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 15.0 μg/m3 (56) 56.0
 
March 19, 2019, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 15.1 μg/m3 (57) 57.0
 
March 18, 2019, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 11.1 μg/m3 (46) 46.0
 
March 18, 2019, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 9.6 μg/m3 (40) 40.0
 
March 18, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 7.9 μg/m3 (33) 33.0
 
March 18, 2019, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 9.8 μg/m3 (41) 41.0
 
March 18, 2019, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 19.0 μg/m3 (65) 65.0
 
March 18, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 21.3 μg/m3 (70) 70.0
 
March 18, 2019, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 19.5 μg/m3 (66) 66.0
 
March 18, 2019, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 16.2 μg/m3 (59) 59.0
 
March 18, 2019, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 10.9 μg/m3 (45) 45.0
 
March 18, 2019, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 12.7 μg/m3 (51) 51.0
 
March 18, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 14.0 μg/m3 (54) 54.0
 
March 18, 2019, noon N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 13.7 μg/m3 (54) 54.0
 
March 18, 2019, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 10.1 μg/m3 (42) 42.0
 
March 18, 2019, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 7.5 μg/m3 (31) 31.0
 
March 18, 2019, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 10.1 μg/m3 (42) 42.0
 
March 18, 2019, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 11.5 μg/m3 (48) 48.0
 
March 18, 2019, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
March 18, 2019, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 15.7 μg/m3 (58) 58.0
 
March 18, 2019, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 6.1 μg/m3 (25) 25.0
 
March 18, 2019, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 7.4 μg/m3 (31) 31.0
 
March 18, 2019, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 5.9 μg/m3 (25) 25.0
 
March 18, 2019, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 5.7 μg/m3 (24) 24.0
 
March 18, 2019, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 6.9 μg/m3 (29) 29.0
 
March 18, 2019, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 6.5 μg/m3 (27) 27.0
 
March 17, 2019, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 6.7 μg/m3 (28) 28.0
 
March 17, 2019, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 7.8 μg/m3 (32) 32.0
 
March 17, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 8.3 μg/m3 (35) 35.0
 
March 17, 2019, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 15.7 μg/m3 (58) 58.0
 
March 17, 2019, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 16.2 μg/m3 (59) 59.0
 
March 17, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 10.5 μg/m3 (44) 44.0
 
March 17, 2019, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 9.9 μg/m3 (41) 41.0
 
March 17, 2019, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 12.1 μg/m3 (50) 50.0
 
March 17, 2019, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 12.7 μg/m3 (51) 51.0
 
March 17, 2019, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 16.0 μg/m3 (59) 59.0
 
March 17, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 5.1 μg/m3 (21) 21.0
 
March 17, 2019, noon 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 17, 2019, 11 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 17, 2019, 10 a.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 (20) 20.0
 
March 17, 2019, 9 a.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 17, 2019, 8 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 17, 2019, 7 a.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 17, 2019, 6 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 17, 2019, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 5.8 μg/m3 (24) 24.0
 
March 17, 2019, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
March 17, 2019, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 7.3 μg/m3 (30) 30.0
 
March 17, 2019, 2 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 17, 2019, 1 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
 
March 17, 2019, midnight 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 16, 2019, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 4.5 μg/m3 (19) 19.0
 
March 16, 2019, 10 p.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
 
March 16, 2019, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 11.4 μg/m3 (48) 48.0
 
March 16, 2019, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 11.5 μg/m3 (48) 48.0
 
March 16, 2019, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 11.1 μg/m3 (46) 46.0
 
March 16, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 9.3 μg/m3 (39) 39.0
 
March 16, 2019, 5 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 16, 2019, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 6.9 μg/m3 (29) 29.0
 
March 16, 2019, 3 p.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 (20) 20.0
 
March 16, 2019, 2 p.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 (20) 20.0
 
March 16, 2019, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 6.6 μg/m3 (28) 28.0
 
March 16, 2019, noon 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 16, 2019, 11 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 (0) N/A
March 16, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 1.2 μg/m3 (5) 5.0
 
March 16, 2019, 9 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 16, 2019, 8 a.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 16, 2019, 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 (16) 16.0
 
March 16, 2019, 6 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 16, 2019, 5 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 16, 2019, 4 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 16, 2019, 3 a.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 16, 2019, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 2.3 μg/m3 (10) 10.0
 
March 16, 2019, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 9.3 μg/m3 (39) 39.0
 
March 16, 2019, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 7.3 μg/m3 (30) 30.0
 
March 15, 2019, 11 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 (18) 18.0
 
March 15, 2019, 10 p.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 (20) 20.0
 
March 15, 2019, 9 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 15, 2019, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 18.6 μg/m3 (64) 64.0
 
March 15, 2019, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 10.4 μg/m3 (43) 43.0
 
March 15, 2019, 6 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 15, 2019, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 8.4 μg/m3 (35) 35.0
 
March 15, 2019, 4 p.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 15, 2019, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 1.5 μg/m3 (6) 6.0
 
March 15, 2019, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 5.9 μg/m3 (25) 25.0
 
March 15, 2019, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 6.9 μg/m3 (29) 29.0
 
March 15, 2019, noon 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 15, 2019, 11 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 15, 2019, 10 a.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 (20) 20.0
 
March 15, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 10.9 μg/m3 (45) 45.0
 
March 15, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 14.5 μg/m3 (55) 55.0
 
March 15, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 21.2 μg/m3 (70) 70.0