AQSQID: 060710005

Site Name: Crestline - Lake Gregory

Location: Crestline (Lake Gregory Trl), CA

Reporting: True, Located: True

Current AQI: 38.0

Crestline (Lake Gregory Trl) CA, US: 34.243132, -117.272275

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 28, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 9.2 μg/m3 (38) 38.0
 
March 28, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 7.9 μg/m3 (33) 33.0
 
March 28, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 6.1 μg/m3 (25) 25.0
 
March 28, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 7.2 μg/m3 (30) 30.0
 
March 28, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 4.8 μg/m3 (20) 30.0
 
March 28, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 5.3 μg/m3 (22) 32.0
 
March 28, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 6.3 μg/m3 (26) 31.0
 
March 28, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 6.1 μg/m3 (25) 32.0
 
March 28, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 5.8 μg/m3 (24) 34.0
 
March 28, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 7.2 μg/m3 (30) 37.0
 
March 28, 2020, midnight N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 7.7 μg/m3 (32) 38.0
 
March 27, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 6.6 μg/m3 (28) 36.0
 
March 27, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 6.3 μg/m3 (26) 35.0
 
March 27, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 6.0 μg/m3 (25) 35.0
 
March 27, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 4.8 μg/m3 (20) 34.0
 
March 27, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 1.6 μg/m3 (7) 35.0
 
March 27, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 2.9 μg/m3 (12) 34.0
 
March 27, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 3.6 μg/m3 (15) 33.0
 
March 27, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 1.4 μg/m3 (6) 32.0
 
March 27, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 4.6 μg/m3 (19) 32.0
 
March 27, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 6.6 μg/m3 (28) 32.0
 
March 27, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 6.1 μg/m3 (25) 30.0
 
March 27, 2020, noon N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 6.6 μg/m3 (28) 30.0
 
March 27, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 6.3 μg/m3 (26) 28.0
 
March 27, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 4.9 μg/m3 (20) 22.0
 
March 27, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 2.9 μg/m3 (12) 27.0
 
March 27, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 3.1 μg/m3 (13) 32.0
 
March 27, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 3.8 μg/m3 (16) 30.0
 
March 27, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 6.1 μg/m3 (25) 30.0
 
March 27, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 6.8 μg/m3 (28) 29.0
 
March 27, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 3.9 μg/m3 (16) 30.0
 
March 27, 2020, 3 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 27, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 9.7 μg/m3 (40) 40.0
 
March 27, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 10.7 μg/m3 (45) 45.0
 
March 27, 2020, midnight N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 4.8 μg/m3 (20) 35.0
 
March 26, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 5.4 μg/m3 (23) 37.0
 
March 26, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 10.5 μg/m3 (44) 44.0
 
March 26, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 9.4 μg/m3 (39) 39.0
 
March 26, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A N/A 35.0
 
March 26, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A N/A 35.0
 
March 26, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A N/A 35.0
 
March 26, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 3.1 μg/m3 (13) 35.0
 
March 26, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 1.4 μg/m3 (6) 33.0
 
March 26, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 3.9 μg/m3 (16) 34.0
 
March 26, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 4.3 μg/m3 (18) 34.0
 
March 26, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 4.9 μg/m3 (20) 33.0
 
March 26, 2020, noon N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 7.1 μg/m3 (30) 33.0
 
March 26, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 5.0 μg/m3 (21) 32.0
 
March 26, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 3.4 μg/m3 (14) 33.0
 
March 26, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 3.9 μg/m3 (16) 33.0
 
March 26, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 4.1 μg/m3 (17) 33.0
 
March 26, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 0.7 μg/m3 (3) 33.0
 
March 26, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 0.2 μg/m3 (1) 32.0
 
March 26, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 2.9 μg/m3 (12) 32.0
 
March 26, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 2.6 μg/m3 (11) 31.0
 
March 26, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 3.4 μg/m3 (14) 29.0
 
March 26, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 5.4 μg/m3 (23) 29.0
 
March 26, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 3.4 μg/m3 (14) 32.0
 
March 26, 2020, midnight N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 4.6 μg/m3 (19) 34.0
 
March 25, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 7.5 μg/m3 (31) 35.0
 
March 25, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 8.7 μg/m3 (36) 36.0
 
March 25, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 6.3 μg/m3 (26) 38.0
 
March 25, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 4.1 μg/m3 (17) 38.0
 
March 25, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 3.1 μg/m3 (13) 36.0
 
March 25, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 1.2 μg/m3 (5) 34.0
 
March 25, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 2.9 μg/m3 (12) 32.0
 
March 25, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 4.1 μg/m3 (17) 33.0
 
March 25, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 2.1 μg/m3 (9) 32.0
 
March 25, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 2.9 μg/m3 (12) 32.0
 
March 25, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 1.7 μg/m3 (7) 31.0
 
March 25, 2020, noon N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 0.9 μg/m3 (4) 32.0
 
March 25, 2020, 11 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 25, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 3.3 μg/m3 (14) 30.0
 
March 25, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 2.4 μg/m3 (10) 29.0
 
March 25, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 1.9 μg/m3 (8) 29.0
 
March 25, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 2.1 μg/m3 (9) 31.0
 
March 25, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A -1.7 μg/m3 (0) 29.0
 
March 25, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A -1.5 μg/m3 (0) 30.0
 
March 25, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 1.6 μg/m3 (7) 31.0
 
March 25, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 4.1 μg/m3 (17) 32.0
 
March 25, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 7.7 μg/m3 (32) 34.0
 
March 25, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 8.4 μg/m3 (35) 37.0
 
March 25, 2020, midnight N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 5.8 μg/m3 (24) 38.0
 
March 24, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 5.6 μg/m3 (23) 38.0
 
March 24, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 7.2 μg/m3 (30) 37.0
 
March 24, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 6.8 μg/m3 (28) 35.0
 
March 24, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 6.3 μg/m3 (26) 35.0
 
March 24, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 4.3 μg/m3 (18) 35.0
 
March 24, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 4.1 μg/m3 (17) 35.0
 
March 24, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 4.1 μg/m3 (17) 33.0
 
March 24, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 3.6 μg/m3 (15) 34.0
 
March 24, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 6.3 μg/m3 (26) 32.0
 
March 24, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 5.8 μg/m3 (24) 31.0
 
March 24, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 1.9 μg/m3 (8) 33.0
 
March 24, 2020, noon N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 1.9 μg/m3 (8) 33.0
 
March 24, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 3.8 μg/m3 (16) 32.0
 
March 24, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 6.0 μg/m3 (25) 33.0
 
March 24, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 4.6 μg/m3 (19) 36.0
 
March 24, 2020, 8 a.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 24, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 3.8 μg/m3 (16) 36.0
 
March 24, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 5.8 μg/m3 (24) 34.0
 
March 24, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 7.1 μg/m3 (30) 33.0
 
March 24, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 6.3 μg/m3 (26) 33.0
 
March 24, 2020, 3 a.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 24, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 3.3 μg/m3 (14) 33.0
 
March 24, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 4.5 μg/m3 (19) 35.0
 
March 24, 2020, midnight N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 6.1 μg/m3 (25) 37.0
 
March 23, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 4.1 μg/m3 (17) 39.0
 
March 23, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 3.1 μg/m3 (13) 38.0
 
March 23, 2020, 9 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 23, 2020, 8 p.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 23, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 2.1 μg/m3 (9) 35.0
 
March 23, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 3.3 μg/m3 (14) 35.0
 
March 23, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 2.8 μg/m3 (12) 34.0
 
March 23, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 2.8 μg/m3 (12) 33.0
 
March 23, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 4.3 μg/m3 (18) 33.0
 
March 23, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 2.6 μg/m3 (11) 32.0
 
March 23, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 2.6 μg/m3 (11) 32.0
 
March 23, 2020, noon N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 3.3 μg/m3 (14) 32.0
 
March 23, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 5.1 μg/m3 (21) 31.0
 
March 23, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 3.4 μg/m3 (14) 30.0
 
March 23, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 3.6 μg/m3 (15) 26.0
 
March 23, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 5.1 μg/m3 (21) 26.0
 
March 23, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 3.1 μg/m3 (13) 28.0
 
March 23, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 1.4 μg/m3 (6) 29.0
 
March 23, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 3.6 μg/m3 (15) 30.0
 
March 23, 2020, 4 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 23, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 1.9 μg/m3 (8) 30.0
 
March 23, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 2.9 μg/m3 (12) 29.0
 
March 23, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 4.8 μg/m3 (20) 32.0
 
March 23, 2020, midnight N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 5.1 μg/m3 (21) 36.0
 
March 22, 2020, 11 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 22, 2020, 10 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 22, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 7.7 μg/m3 (32) 39.0
 
March 22, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 5.6 μg/m3 (23) 37.0
 
March 22, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 1.6 μg/m3 (7) 35.0
 
March 22, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 3.3 μg/m3 (14) 34.0
 
March 22, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 5.8 μg/m3 (24) 34.0
 
March 22, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 6.0 μg/m3 (25) 35.0
 
March 22, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 5.6 μg/m3 (23) 36.0
 
March 22, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 6.6 μg/m3 (28) 36.0
 
March 22, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 6.5 μg/m3 (27) 37.0
 
March 22, 2020, noon N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 6.5 μg/m3 (27) 36.0
 
March 22, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 5.1 μg/m3 (21) 38.0
 
March 22, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 4.1 μg/m3 (17) 38.0
 
March 22, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 4.8 μg/m3 (20) 36.0
 
March 22, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 6.1 μg/m3 (25) 37.0
 
March 22, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 7.7 μg/m3 (32) 36.0
 
March 22, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 7.5 μg/m3 (31) 35.0
 
March 22, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 4.3 μg/m3 (18) 34.0
 
March 22, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 4.6 μg/m3 (19) 34.0
 
March 22, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 6.1 μg/m3 (25) 35.0
 
March 22, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 7.7 μg/m3 (32) 36.0
 
March 22, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 9.9 μg/m3 (41) 41.0
 
March 22, 2020, midnight N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 15.9 μg/m3 (58) 58.0
 
March 21, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 5.1 μg/m3 (21) 42.0
 
March 21, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 7.7 μg/m3 (32) 41.0
 
March 21, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 12.4 μg/m3 (51) 51.0
 
March 21, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 9.7 μg/m3 (40) 40.0
 
March 21, 2020, 7 p.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 21, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 5.3 μg/m3 (22) 26.0
 
March 21, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 1.9 μg/m3 (8) 29.0
 
March 21, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 4.8 μg/m3 (20) 28.0
 
March 21, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 8.2 μg/m3 (34) 34.0
 
March 21, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A N/A 5.4 μg/m3 (23) 23.0
 
March 21, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A N/A 2.4 μg/m3 (10) 10.0
 
March 21, 2020, noon N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A N/A 4.6 μg/m3 (19) 19.0
 
March 21, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) N/A N/A 6.0 μg/m3 (25) 25.0