AQSQID: 060710005

Site Name: Crestline - Lake Gregory

Location: San Bernardino Co, CA

Reporting: True, Located: True

Current AQI: 37.0

San Bernardino Co CA, US: 34.24139, -117.275558

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 24, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 8.1 μg/m3 (34) 37.0
 
March 24, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 6.3 μg/m3 (26) 35.0
 
March 24, 2019, noon N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 7.4 μg/m3 (31) 31.0
 
March 24, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 10.1 μg/m3 (42) 42.0
 
March 24, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 8.9 μg/m3 (37) 37.0
 
March 24, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 7.6 μg/m3 (32) 32.0
 
March 24, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 8.9 μg/m3 (37) 37.0
 
March 24, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 7.9 μg/m3 (33) 33.0
 
March 24, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 6.9 μg/m3 (29) 32.0
 
March 24, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 9.1 μg/m3 (38) 38.0
 
March 24, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 11.1 μg/m3 (46) 46.0
 
March 24, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 10.9 μg/m3 (45) 45.0
 
March 24, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 12.3 μg/m3 (51) 51.0
 
March 24, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 12.8 μg/m3 (52) 52.0
 
March 24, 2019, midnight N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 10.1 μg/m3 (42) 43.0
 
March 23, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A N/A 10.4 μg/m3 (43) 44.0
 
March 23, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A N/A 13.3 μg/m3 (53) 53.0
 
March 23, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 15.0 μg/m3 (56) 56.0
 
March 23, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 16.3 μg/m3 (59) 59.0
 
March 23, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 12.3 μg/m3 (51) 51.0
 
March 23, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 10.4 μg/m3 (43) 43.0
 
March 23, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 15.8 μg/m3 (58) 58.0
 
March 23, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 5.8 μg/m3 (24) 35.0
 
March 23, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 9.1 μg/m3 (38) 38.0
 
March 23, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 8.8 μg/m3 (37) 39.0
 
March 23, 2019, 1 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 23, 2019, noon N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 10.9 μg/m3 (45) 45.0
 
March 23, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 16.6 μg/m3 (60) 60.0
 
March 23, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 13.1 μg/m3 (52) 52.0
 
March 23, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 13.8 μg/m3 (54) 54.0
 
March 23, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 22.3 μg/m3 (72) 72.0
 
March 23, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 27.8 μg/m3 (84) 84.0
 
March 23, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 18.8 μg/m3 (64) 64.0
 
March 23, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 18.5 μg/m3 (64) 64.0
 
March 23, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 15.8 μg/m3 (58) 58.0
 
March 23, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 14.6 μg/m3 (56) 56.0
 
March 23, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 17.8 μg/m3 (62) 62.0
 
March 23, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 13.8 μg/m3 (54) 54.0
 
March 23, 2019, midnight N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 16.3 μg/m3 (59) 59.0
 
March 22, 2019, 11 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 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 12.6 μg/m3 (51) 51.0
 
March 22, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 9.6 μg/m3 (40) 40.0
 
March 22, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 6.5 μg/m3 (27) 34.0
 
March 22, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 5.0 μg/m3 (21) 38.0
 
March 22, 2019, 6 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 22, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 2.8 μg/m3 (12) 38.0
 
March 22, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 3.5 μg/m3 (15) 37.0
 
March 22, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 4.5 μg/m3 (19) 28.0
 
March 22, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 5.3 μg/m3 (22) 22.0
 
March 22, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 5.3 μg/m3 (22) 24.0
 
March 22, 2019, noon N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 3.8 μg/m3 (16) 31.0
 
March 22, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 5.0 μg/m3 (21) 30.0
 
March 22, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 6.3 μg/m3 (26) 30.0
 
March 22, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 4.3 μg/m3 (18) 30.0
 
March 22, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 7.9 μg/m3 (33) 33.0
 
March 22, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 8.4 μg/m3 (35) 35.0
 
March 22, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 4.5 μg/m3 (19) 19.0
 
March 22, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 3.1 μg/m3 (13) 30.0
 
March 22, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 4.0 μg/m3 (17) 35.0
 
March 22, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 5.3 μg/m3 (22) 35.0
 
March 22, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 6.3 μg/m3 (26) 38.0
 
March 22, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 8.1 μg/m3 (34) 37.0
 
March 22, 2019, midnight N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 8.9 μg/m3 (37) 38.0
 
March 21, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 6.0 μg/m3 (25) 38.0
 
March 21, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 2.6 μg/m3 (11) 38.0
 
March 21, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 2.3 μg/m3 (10) 35.0
 
March 21, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 3.1 μg/m3 (13) 37.0
 
March 21, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 3.5 μg/m3 (15) 38.0
 
March 21, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 3.5 μg/m3 (15) 38.0
 
March 21, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 1.8 μg/m3 (8) 39.0
 
March 21, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 1.1 μg/m3 (5) 40.0
 
March 21, 2019, 3 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 21, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 3.8 μg/m3 (16) 38.0
 
March 21, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 3.5 μg/m3 (15) 38.0
 
March 21, 2019, noon N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 4.5 μg/m3 (19) 38.0
 
March 21, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 4.3 μg/m3 (18) 37.0
 
March 21, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 1.3 μg/m3 (5) 37.0
 
March 21, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 2.8 μg/m3 (12) 37.0
 
March 21, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 6.9 μg/m3 (29) 35.0
 
March 21, 2019, 7 a.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 21, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 1.8 μg/m3 (8) 37.0
 
March 21, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 1.1 μg/m3 (5) 38.0
 
March 21, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 4.5 μg/m3 (19) 38.0
 
March 21, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 6.7 μg/m3 (28) 39.0
 
March 21, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 4.3 μg/m3 (18) 39.0
 
March 21, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 3.0 μg/m3 (12) 40.0
 
March 21, 2019, midnight N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 4.0 μg/m3 (17) 41.0
 
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 5.7 μg/m3 (24) 40.0
 
March 20, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 7.4 μg/m3 (31) 37.0
 
March 20, 2019, 9 p.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 20, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 5.8 μg/m3 (24) 42.0
 
March 20, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 8.9 μg/m3 (37) 41.0
 
March 20, 2019, 6 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 20, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 5.3 μg/m3 (22) 38.0
 
March 20, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 4.0 μg/m3 (17) 38.0
 
March 20, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 5.0 μg/m3 (21) 39.0
 
March 20, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 5.0 μg/m3 (21) 38.0
 
March 20, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 3.3 μg/m3 (14) 38.0
 
March 20, 2019, noon N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 6.3 μg/m3 (26) 39.0
 
March 20, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 9.4 μg/m3 (39) 39.0
 
March 20, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 9.1 μg/m3 (38) 38.0
 
March 20, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 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 50.0 ppb (38) N/A N/A 10.1 μg/m3 (42) 42.0
 
March 20, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 7.6 μg/m3 (32) 40.0
 
March 20, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 9.6 μg/m3 (40) 40.0
 
March 20, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 13.6 μg/m3 (53) 53.0
 
March 20, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 16.6 μg/m3 (60) 60.0
 
March 20, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 11.3 μg/m3 (47) 47.0
 
March 20, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 12.4 μg/m3 (51) 51.0
 
March 20, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A N/A 13.1 μg/m3 (52) 52.0
 
March 20, 2019, midnight N/A N/A N/A N/A N/A N/A 68.0 ppb (52) N/A N/A 13.8 μg/m3 (54) 54.0
 
March 19, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 73.0 ppb (57) N/A N/A 15.8 μg/m3 (58) 58.0
 
March 19, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (52) N/A N/A 17.1 μg/m3 (61) 61.0
 
March 19, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A N/A 22.3 μg/m3 (72) 72.0
 
March 19, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A N/A 7.4 μg/m3 (31) 45.0
 
March 19, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 5.2 μg/m3 (22) 42.0
 
March 19, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A N/A 39.0
 
March 19, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A N/A 40.0
 
March 19, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 7.9 μg/m3 (33) 40.0
 
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 9.3 μg/m3 (39) 39.0
 
March 19, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) N/A N/A 11.8 μg/m3 (49) 49.0
 
March 19, 2019, noon N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 10.4 μg/m3 (43) 43.0
 
March 19, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 7.7 μg/m3 (32) 32.0
 
March 19, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 2.8 μg/m3 (12) 22.0
 
March 19, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 6.5 μg/m3 (27) 27.0
 
March 19, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 10.4 μg/m3 (43) 43.0
 
March 19, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A N/A 22.0
 
March 19, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 7.6 μg/m3 (32) 32.0
 
March 19, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 7.0 μg/m3 (29) 30.0
 
March 19, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 16.9 μg/m3 (60) 60.0
 
March 19, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 15.9 μg/m3 (58) 58.0
 
March 19, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 7.4 μg/m3 (31) 34.0
 
March 19, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (52) N/A N/A 6.0 μg/m3 (25) 52.0
 
March 19, 2019, midnight N/A N/A N/A N/A N/A N/A 71.0 ppb (55) N/A N/A 4.8 μg/m3 (20) 55.0
 
March 18, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (49) N/A N/A 2.0 μg/m3 (8) 49.0
 
March 18, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (47) N/A N/A 1.8 μg/m3 (8) 47.0
 
March 18, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A N/A 2.5 μg/m3 (10) 44.0
 
March 18, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 1.8 μg/m3 (8) 43.0
 
March 18, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 0.2 μg/m3 (1) 42.0
 
March 18, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A -1.3 μg/m3 (0) 41.0
 
March 18, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A -0.5 μg/m3 (0) 40.0
 
March 18, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 5.1 μg/m3 (21) 32.0
 
March 18, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A N/A 11.9 μg/m3 (50) 50.0
 
March 18, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 11.9 μg/m3 (50) 50.0
 
March 18, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A N/A 7.7 μg/m3 (32) 32.0
 
March 18, 2019, noon N/A N/A N/A N/A N/A N/A 17.0 ppb (13) 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 19.0 ppb (15) N/A N/A 9.4 μg/m3 (39) 39.0
 
March 18, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 9.2 μg/m3 (38) 38.0
 
March 18, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 8.4 μg/m3 (35) 35.0
 
March 18, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 8.2 μg/m3 (34) 34.0
 
March 18, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 10.7 μg/m3 (45) 45.0
 
March 18, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 13.6 μg/m3 (53) 53.0
 
March 18, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 22.4 μg/m3 (72) 72.0
 
March 18, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 24.1 μg/m3 (76) 76.0
 
March 18, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 9.4 μg/m3 (39) 39.0
 
March 18, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 6.3 μg/m3 (26) 26.0
 
March 18, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 3.1 μg/m3 (13) 28.0
 
March 18, 2019, midnight N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 3.3 μg/m3 (14) 42.0
 
March 17, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A N/A 2.6 μg/m3 (11) 44.0
 
March 17, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 5.0 μg/m3 (21) 43.0
 
March 17, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 5.3 μg/m3 (22) 42.0
 
March 17, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 2.0 μg/m3 (8) 42.0
 
March 17, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 1.1 μg/m3 (5) 40.0
 
March 17, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 4.2 μg/m3 (18) 39.0
 
March 17, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 4.8 μg/m3 (20) 38.0
 
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 3.5 μg/m3 (15) 35.0
 
March 17, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A N/A 8.4 μg/m3 (35) 35.0
 
March 17, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A N/A 11.4 μg/m3 (48) 48.0