AQSQID: 560410101

Site Name: Murphy Ridge

Location: Bear River, WY

Reporting: True, Located: True

Current AQI: 41.0

Bear River WY, US: 41.3694, -111.0419

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 19, 2019, 1 p.m. 4.6 ppb (4) -0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 53.0 ppb (41) N/A 9.0 μg/m3 (8) N/A 41.0
 
March 19, 2019, noon 4.9 ppb (5) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 54.0 ppb (42) N/A 7.0 μg/m3 (6) N/A 42.0
 
March 19, 2019, 11 a.m. 2.9 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 63.0 ppb (48) N/A 9.0 μg/m3 (8) N/A 48.0
 
March 19, 2019, 10 a.m. 3.2 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 63.0 ppb (48) N/A 7.0 μg/m3 (6) N/A 48.0
 
March 19, 2019, 9 a.m. 4.5 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 62.0 ppb (48) N/A 9.0 μg/m3 (8) N/A 48.0
 
March 19, 2019, 8 a.m. 10.0 ppb (9) 0.2 ppb (0) N/A 10.0 ppb (9) N/A N/A 62.0 ppb (48) N/A 14.0 μg/m3 (13) N/A 48.0
 
March 19, 2019, 7 a.m. 7.7 ppb (7) 0.2 ppb (0) N/A 8.0 ppb (7) N/A N/A 65.0 ppb (50) N/A 13.0 μg/m3 (12) N/A 50.0
 
March 19, 2019, 6 a.m. 2.8 ppb (3) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 72.0 ppb (56) N/A 8.0 μg/m3 (7) N/A 56.0
 
March 19, 2019, 5 a.m. 2.4 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 67.0 ppb (52) N/A 8.0 μg/m3 (7) N/A 52.0
 
March 19, 2019, 4 a.m. 2.9 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 63.0 ppb (48) N/A 8.0 μg/m3 (7) N/A 48.0
 
March 19, 2019, 3 a.m. 3.2 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 68.0 ppb (52) N/A 9.0 μg/m3 (8) N/A 52.0
 
March 19, 2019, 2 a.m. 3.0 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 69.0 ppb (53) N/A 10.0 μg/m3 (9) N/A 53.0
 
March 19, 2019, 1 a.m. 2.9 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 68.0 ppb (52) N/A 8.0 μg/m3 (7) N/A 52.0
 
March 19, 2019, midnight 4.2 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 65.0 ppb (50) N/A 9.0 μg/m3 (8) N/A 50.0
 
March 18, 2019, 11 p.m. 4.2 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 68.0 ppb (52) N/A 10.0 μg/m3 (9) N/A 52.0
 
March 18, 2019, 10 p.m. 3.5 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 63.0 ppb (48) N/A 7.0 μg/m3 (6) N/A 48.0
 
March 18, 2019, 9 p.m. 4.3 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 64.0 ppb (49) N/A 6.0 μg/m3 (5) N/A 49.0
 
March 18, 2019, 8 p.m. 4.0 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 67.0 ppb (52) N/A 7.0 μg/m3 (6) N/A 52.0
 
March 18, 2019, 7 p.m. 7.3 ppb (7) 1.8 ppb (2) N/A 5.0 ppb (5) N/A N/A 61.0 ppb (47) N/A 12.0 μg/m3 (11) N/A 47.0
 
March 18, 2019, 6 p.m. 10.6 ppb (10) 3.6 ppb (3) N/A 7.0 ppb (6) N/A N/A 54.0 ppb (42) N/A 14.0 μg/m3 (13) N/A 42.0
 
March 18, 2019, 5 p.m. 7.8 ppb (7) 2.4 ppb (2) N/A 5.0 ppb (5) N/A N/A 54.0 ppb (42) N/A 9.0 μg/m3 (8) N/A 42.0
 
March 18, 2019, 4 p.m. 6.4 ppb (6) 1.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 56.0 ppb (43) N/A 9.0 μg/m3 (8) N/A 43.0
 
March 18, 2019, 3 p.m. 6.1 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 56.0 ppb (43) N/A 9.0 μg/m3 (8) N/A 43.0
 
March 18, 2019, 2 p.m. 6.4 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 54.0 ppb (42) N/A 8.0 μg/m3 (7) N/A 42.0
 
March 18, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) N/A 7.0
 
March 18, 2019, noon 4.8 ppb (4) 0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 54.0 ppb (42) N/A 6.0 μg/m3 (5) N/A 42.0
 
March 18, 2019, 11 a.m. 5.6 ppb (5) 0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A 53.0 ppb (41) N/A 6.0 μg/m3 (5) N/A 41.0
 
March 18, 2019, 10 a.m. 3.7 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 58.0 ppb (45) N/A 5.0 μg/m3 (5) N/A 45.0
 
March 18, 2019, 9 a.m. 4.0 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 60.0 ppb (46) N/A 8.0 μg/m3 (7) N/A 46.0
 
March 18, 2019, 8 a.m. 4.0 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 64.0 ppb (49) N/A 7.0 μg/m3 (6) N/A 49.0
 
March 18, 2019, 7 a.m. 2.8 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 63.0 ppb (48) N/A 7.0 μg/m3 (6) N/A 48.0
 
March 18, 2019, 6 a.m. 3.6 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 66.0 ppb (51) N/A 9.0 μg/m3 (8) N/A 51.0
 
March 18, 2019, 5 a.m. 2.8 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 68.0 ppb (52) N/A 9.0 μg/m3 (8) N/A 52.0
 
March 18, 2019, 4 a.m. 2.7 ppb (3) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 67.0 ppb (52) N/A 9.0 μg/m3 (8) N/A 52.0
 
March 18, 2019, 3 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 64.0 ppb (49) N/A 6.0 μg/m3 (5) N/A 49.0
 
March 18, 2019, 2 a.m. 2.4 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 65.0 ppb (50) N/A 6.0 μg/m3 (5) N/A 50.0
 
March 18, 2019, 1 a.m. 3.0 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 65.0 ppb (50) N/A 7.0 μg/m3 (6) N/A 50.0
 
March 18, 2019, midnight 3.4 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 63.0 ppb (48) N/A 7.0 μg/m3 (6) N/A 48.0
 
March 17, 2019, 11 p.m. 3.3 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 63.0 ppb (48) N/A 7.0 μg/m3 (6) N/A 48.0
 
March 17, 2019, 10 p.m. 3.2 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 63.0 ppb (48) N/A 7.0 μg/m3 (6) N/A 48.0
 
March 17, 2019, 9 p.m. 3.6 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 62.0 ppb (48) N/A 6.0 μg/m3 (5) N/A 48.0
 
March 17, 2019, 8 p.m. 3.8 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 62.0 ppb (48) N/A 7.0 μg/m3 (6) N/A 48.0
 
March 17, 2019, 7 p.m. 12.9 ppb (12) 5.1 ppb (5) N/A 8.0 ppb (7) N/A N/A 53.0 ppb (41) N/A 10.0 μg/m3 (9) N/A 41.0
 
March 17, 2019, 6 p.m. 7.1 ppb (7) 3.1 ppb (3) N/A 4.0 ppb (4) N/A N/A 48.0 ppb (37) N/A 8.0 μg/m3 (7) N/A 37.0
 
March 17, 2019, 5 p.m. 6.8 ppb (6) 3.1 ppb (3) N/A 4.0 ppb (4) N/A N/A 46.0 ppb (35) N/A 7.0 μg/m3 (6) N/A 35.0
 
March 17, 2019, 4 p.m. 6.2 ppb (6) 2.8 ppb (3) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) N/A 7.0 μg/m3 (6) N/A 34.0
 
March 17, 2019, 3 p.m. 3.9 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 45.0 ppb (35) N/A 6.0 μg/m3 (5) N/A 35.0
 
March 17, 2019, 2 p.m. 3.7 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) N/A 5.0 μg/m3 (5) N/A 34.0
 
March 17, 2019, 1 p.m. 3.7 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (33) N/A 5.0 μg/m3 (5) N/A 33.0
 
March 17, 2019, noon 3.8 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 44.0 ppb (34) N/A 5.0 μg/m3 (5) N/A 34.0
 
March 17, 2019, 11 a.m. 3.4 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) N/A 5.0 μg/m3 (5) N/A 34.0
 
March 17, 2019, 10 a.m. 4.9 ppb (5) 0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A 45.0 ppb (35) N/A 5.0 μg/m3 (5) N/A 35.0
 
March 17, 2019, 9 a.m. 7.8 ppb (7) 0.2 ppb (0) N/A 8.0 ppb (7) N/A N/A 43.0 ppb (33) N/A 11.0 μg/m3 (10) N/A 33.0
 
March 17, 2019, 8 a.m. 6.6 ppb (6) 0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 54.0 ppb (42) N/A 12.0 μg/m3 (11) N/A 42.0
 
March 17, 2019, 7 a.m. 2.1 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 59.0 ppb (45) N/A 6.0 μg/m3 (5) N/A 45.0
 
March 17, 2019, 6 a.m. 2.0 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 55.0 ppb (42) N/A 7.0 μg/m3 (6) N/A 42.0
 
March 17, 2019, 5 a.m. 1.9 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 55.0 ppb (42) N/A 7.0 μg/m3 (6) N/A 42.0
 
March 17, 2019, 4 a.m. 2.1 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 56.0 ppb (43) N/A 6.0 μg/m3 (5) N/A 43.0
 
March 17, 2019, 3 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 55.0 ppb (42) N/A 6.0 μg/m3 (5) N/A 42.0
 
March 17, 2019, 2 a.m. 3.9 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 58.0 ppb (45) N/A 9.0 μg/m3 (8) N/A 45.0
 
March 17, 2019, 1 a.m. 5.0 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 58.0 ppb (45) N/A 10.0 μg/m3 (9) N/A 45.0
 
March 17, 2019, midnight 4.9 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 59.0 ppb (45) N/A 9.0 μg/m3 (8) N/A 45.0
 
March 16, 2019, 11 p.m. 4.3 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 57.0 ppb (44) N/A 8.0 μg/m3 (7) N/A 44.0
 
March 16, 2019, 10 p.m. 4.5 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 59.0 ppb (45) N/A 7.0 μg/m3 (6) N/A 45.0
 
March 16, 2019, 9 p.m. 4.4 ppb (4) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 59.0 ppb (45) N/A 6.0 μg/m3 (5) N/A 45.0
 
March 16, 2019, 8 p.m. 3.5 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 58.0 ppb (45) N/A 6.0 μg/m3 (5) N/A 45.0
 
March 16, 2019, 7 p.m. 7.0 ppb (6) 2.3 ppb (2) N/A 5.0 ppb (5) N/A N/A 54.0 ppb (42) N/A 10.0 μg/m3 (9) N/A 42.0
 
March 16, 2019, 6 p.m. 5.5 ppb (5) 1.7 ppb (2) N/A 4.0 ppb (4) N/A N/A 47.0 ppb (36) N/A 7.0 μg/m3 (6) N/A 36.0
 
March 16, 2019, 5 p.m. 3.2 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 51.0 ppb (39) N/A 5.0 μg/m3 (5) N/A 39.0
 
March 16, 2019, 4 p.m. 3.6 ppb (3) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 48.0 ppb (37) N/A 6.0 μg/m3 (5) N/A 37.0
 
March 16, 2019, 3 p.m. 5.6 ppb (5) 1.3 ppb (1) N/A 4.0 ppb (4) N/A N/A 46.0 ppb (35) N/A 6.0 μg/m3 (5) N/A 35.0
 
March 16, 2019, 2 p.m. 5.4 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 46.0 ppb (35) N/A 6.0 μg/m3 (5) N/A 35.0
 
March 16, 2019, 1 p.m. 2.9 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 49.0 ppb (38) N/A 5.0 μg/m3 (5) N/A 38.0
 
March 16, 2019, noon 2.6 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 49.0 ppb (38) N/A 6.0 μg/m3 (5) N/A 38.0
 
March 16, 2019, 11 a.m. 2.6 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 50.0 ppb (38) N/A 5.0 μg/m3 (5) N/A 38.0
 
March 16, 2019, 10 a.m. 6.0 ppb (6) 0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 47.0 ppb (36) N/A 8.0 μg/m3 (7) N/A 36.0
 
March 16, 2019, 9 a.m. 6.0 ppb (6) 0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 47.0 ppb (36) N/A 8.0 μg/m3 (7) N/A 36.0
 
March 16, 2019, 8 a.m. 4.7 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 50.0 ppb (38) N/A 7.0 μg/m3 (6) N/A 38.0
 
March 16, 2019, 7 a.m. 4.9 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 52.0 ppb (40) N/A 8.0 μg/m3 (7) N/A 40.0
 
March 16, 2019, 6 a.m. 2.9 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 53.0 ppb (41) N/A 7.0 μg/m3 (6) N/A 41.0
 
March 16, 2019, 5 a.m. 1.6 ppb (1) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 51.0 ppb (39) N/A 5.0 μg/m3 (5) N/A 39.0
 
March 16, 2019, 4 a.m. 1.8 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 51.0 ppb (39) N/A 5.0 μg/m3 (5) N/A 39.0
 
March 16, 2019, 3 a.m. 1.8 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 55.0 ppb (42) N/A 5.0 μg/m3 (5) N/A 42.0
 
March 16, 2019, 2 a.m. 2.3 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 56.0 ppb (43) N/A 5.0 μg/m3 (5) N/A 43.0
 
March 16, 2019, 1 a.m. 2.8 ppb (3) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 60.0 ppb (46) N/A 6.0 μg/m3 (5) N/A 46.0
 
March 16, 2019, midnight 3.0 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 61.0 ppb (47) N/A 6.0 μg/m3 (5) N/A 47.0
 
March 15, 2019, 11 p.m. 3.6 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 62.0 ppb (48) N/A 6.0 μg/m3 (5) N/A 48.0
 
March 15, 2019, 10 p.m. 4.3 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 59.0 ppb (45) N/A 7.0 μg/m3 (6) N/A 45.0
 
March 15, 2019, 9 p.m. 4.9 ppb (5) 1.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 57.0 ppb (44) N/A 7.0 μg/m3 (6) N/A 44.0
 
March 15, 2019, 8 p.m. 5.7 ppb (5) 2.1 ppb (2) N/A 4.0 ppb (4) N/A N/A 53.0 ppb (41) N/A 8.0 μg/m3 (7) N/A 41.0
 
March 15, 2019, 7 p.m. 5.7 ppb (5) 2.5 ppb (2) N/A 3.0 ppb (3) N/A N/A 51.0 ppb (39) N/A 10.0 μg/m3 (9) N/A 39.0
 
March 15, 2019, 6 p.m. 11.6 ppb (11) 6.4 ppb (6) N/A 5.0 ppb (5) N/A N/A 48.0 ppb (37) N/A 17.0 μg/m3 (15) N/A 37.0
 
March 15, 2019, 5 p.m. 6.0 ppb (6) 2.9 ppb (3) N/A 3.0 ppb (3) N/A N/A 47.0 ppb (36) N/A 8.0 μg/m3 (7) N/A 36.0
 
March 15, 2019, 4 p.m. 9.1 ppb (8) 4.3 ppb (4) N/A 5.0 ppb (5) N/A N/A 45.0 ppb (35) N/A 12.0 μg/m3 (11) N/A 35.0
 
March 15, 2019, 3 p.m. 2.8 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (35) N/A 6.0 μg/m3 (5) N/A 35.0
 
March 15, 2019, 2 p.m. 3.4 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (35) N/A 6.0 μg/m3 (5) N/A 35.0
 
March 15, 2019, 1 p.m. 4.3 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 45.0 ppb (35) N/A 7.0 μg/m3 (6) N/A 35.0
 
March 15, 2019, noon 7.7 ppb (7) 0.2 ppb (0) N/A 7.0 ppb (6) N/A N/A 42.0 ppb (32) N/A 7.0 μg/m3 (6) N/A 32.0
 
March 15, 2019, 11 a.m. 6.5 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 43.0 ppb (33) N/A 5.0 μg/m3 (5) N/A 33.0
 
March 15, 2019, 10 a.m. 6.1 ppb (6) 0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 44.0 ppb (34) N/A 5.0 μg/m3 (5) N/A 34.0
 
March 15, 2019, 9 a.m. 7.1 ppb (7) 0.3 ppb (0) N/A 7.0 ppb (6) N/A N/A 44.0 ppb (34) N/A 7.0 μg/m3 (6) N/A 34.0
 
March 15, 2019, 8 a.m. 5.6 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 46.0 ppb (35) N/A 7.0 μg/m3 (6) N/A 35.0
 
March 15, 2019, 7 a.m. 5.2 ppb (5) 0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 45.0 ppb (35) N/A 6.0 μg/m3 (5) N/A 35.0
 
March 15, 2019, 6 a.m. 1.2 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) N/A 5.0 μg/m3 (5) N/A 37.0
 
March 15, 2019, 5 a.m. 1.0 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (38) N/A 5.0 μg/m3 (5) N/A 38.0
 
March 15, 2019, 4 a.m. 0.8 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 51.0 ppb (39) N/A 4.0 μg/m3 (4) N/A 39.0
 
March 15, 2019, 3 a.m. 0.6 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 53.0 ppb (41) N/A 5.0 μg/m3 (5) N/A 41.0
 
March 15, 2019, 2 a.m. 1.1 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (38) N/A 6.0 μg/m3 (5) N/A 38.0
 
March 15, 2019, 1 a.m. 1.6 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A 51.0 ppb (39) N/A 5.0 μg/m3 (5) N/A 39.0
 
March 15, 2019, midnight 1.5 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 51.0 ppb (39) N/A 4.0 μg/m3 (4) N/A 39.0
 
March 14, 2019, 11 p.m. 1.5 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 52.0 ppb (40) N/A 4.0 μg/m3 (4) N/A 40.0
 
March 14, 2019, 10 p.m. 1.5 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 51.0 ppb (39) N/A 4.0 μg/m3 (4) N/A 39.0
 
March 14, 2019, 9 p.m. 2.8 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (37) N/A 4.0 μg/m3 (4) N/A 37.0
 
March 14, 2019, 8 p.m. 2.7 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 54.0 ppb (42) N/A 5.0 μg/m3 (5) N/A 42.0
 
March 14, 2019, 7 p.m. 3.6 ppb (3) 1.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 51.0 ppb (39) N/A 6.0 μg/m3 (5) N/A 39.0
 
March 14, 2019, 6 p.m. 2.1 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 51.0 ppb (39) N/A 6.0 μg/m3 (5) N/A 39.0
 
March 14, 2019, 5 p.m. 1.9 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (38) N/A 5.0 μg/m3 (5) N/A 38.0
 
March 14, 2019, 4 p.m. 1.6 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) N/A 5.0 μg/m3 (5) N/A 37.0
 
March 14, 2019, 3 p.m. 1.7 ppb (2) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) N/A 5.0 μg/m3 (5) N/A 35.0
 
March 14, 2019, 2 p.m. 1.3 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) N/A 4.0 μg/m3 (4) N/A 36.0
 
March 14, 2019, 1 p.m. 0.9 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) N/A 5.0 μg/m3 (5) N/A 36.0
 
March 14, 2019, noon 0.8 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) N/A 4.0 μg/m3 (4) N/A 35.0
 
March 14, 2019, 11 a.m. 0.8 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) N/A 4.0 μg/m3 (4) N/A 35.0
 
March 14, 2019, 10 a.m. 0.8 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) N/A 4.0 μg/m3 (4) N/A 35.0
 
March 14, 2019, 9 a.m. 0.6 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) N/A 4.0 μg/m3 (4) N/A 35.0
 
March 14, 2019, 8 a.m. 1.0 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) N/A 4.0 μg/m3 (4) N/A 35.0
 
March 14, 2019, 7 a.m. 1.1 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) N/A 4.0 μg/m3 (4) N/A 35.0
 
March 14, 2019, 6 a.m. 1.2 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) N/A 4.0 μg/m3 (4) N/A 35.0
 
March 14, 2019, 5 a.m. 1.1 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) N/A 4.0 μg/m3 (4) N/A 35.0
 
March 14, 2019, 4 a.m. 1.0 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) N/A 4.0 μg/m3 (4) N/A 35.0
 
March 14, 2019, 3 a.m. 1.2 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (34) N/A 5.0 μg/m3 (5) N/A 34.0
 
March 14, 2019, 2 a.m. 1.2 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) N/A 4.0 μg/m3 (4) N/A 35.0
 
March 14, 2019, 1 a.m. 4.7 ppb (4) 2.1 ppb (2) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) N/A 5.0 μg/m3 (5) N/A 34.0
 
March 14, 2019, midnight 9.4 ppb (9) 5.4 ppb (5) N/A 4.0 ppb (4) N/A N/A 45.0 ppb (35) N/A 5.0 μg/m3 (5) N/A 35.0
 
March 13, 2019, 11 p.m. 1.8 ppb (2) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) N/A 6.0 μg/m3 (5) N/A 36.0
 
March 13, 2019, 10 p.m. 2.0 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (37) N/A 5.0 μg/m3 (5) N/A 37.0
 
March 13, 2019, 9 p.m. 2.0 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 49.0 ppb (38) N/A 5.0 μg/m3 (5) N/A 38.0
 
March 13, 2019, 8 p.m. 2.6 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 49.0 ppb (38) N/A 5.0 μg/m3 (5) N/A 38.0
 
March 13, 2019, 7 p.m. 2.5 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (37) N/A 6.0 μg/m3 (5) N/A 37.0
 
March 13, 2019, 6 p.m. 2.5 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (36) N/A 6.0 μg/m3 (5) N/A 36.0
 
March 13, 2019, 5 p.m. 2.5 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (35) N/A 5.0 μg/m3 (5) N/A 35.0
 
March 13, 2019, 4 p.m. 2.0 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) N/A 5.0 μg/m3 (5) N/A 35.0
 
March 13, 2019, 3 p.m. 1.5 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) N/A 5.0 μg/m3 (5) N/A 35.0
 
March 13, 2019, 2 p.m. 1.6 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) N/A 6.0 μg/m3 (5) N/A 35.0
 
March 13, 2019, 1 p.m. 2.0 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (37) N/A 6.0 μg/m3 (5) N/A 37.0
 
March 13, 2019, noon 2.4 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 55.0 ppb (42) N/A 8.0 μg/m3 (7) N/A 42.0
 
March 13, 2019, 11 a.m. 2.7 ppb (3) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 57.0 ppb (44) N/A 8.0 μg/m3 (7) N/A 44.0
 
March 13, 2019, 10 a.m. 2.7 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 59.0 ppb (45) N/A 4.0 μg/m3 (4) N/A 45.0
 
March 13, 2019, 9 a.m. 2.8 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 59.0 ppb (45) N/A 7.0 μg/m3 (6) N/A 45.0
 
March 13, 2019, 8 a.m. 2.9 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 64.0 ppb (49) N/A 9.0 μg/m3 (8) N/A 49.0
 
March 13, 2019, 7 a.m. 2.6 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 65.0 ppb (50) N/A 8.0 μg/m3 (7) N/A 50.0
 
March 13, 2019, 6 a.m. 2.8 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 65.0 ppb (50) N/A 7.0 μg/m3 (6) N/A 50.0
 
March 13, 2019, 5 a.m. 2.9 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 67.0 ppb (52) N/A 9.0 μg/m3 (8) N/A 52.0
 
March 13, 2019, 4 a.m. 3.0 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 68.0 ppb (52) N/A 8.0 μg/m3 (7) N/A 52.0
 
March 13, 2019, 3 a.m. 3.2 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 69.0 ppb (53) N/A 9.0 μg/m3 (8) N/A 53.0
 
March 13, 2019, 2 a.m. 2.8 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 69.0 ppb (53) N/A 9.0 μg/m3 (8) N/A 53.0
 
March 13, 2019, 1 a.m. 2.8 ppb (3) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 68.0 ppb (52) N/A 7.0 μg/m3 (6) N/A 52.0
 
March 13, 2019, midnight 3.3 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 68.0 ppb (52) N/A 6.0 μg/m3 (5) N/A 52.0
 
March 12, 2019, 11 p.m. 4.1 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 67.0 ppb (52) N/A 6.0 μg/m3 (5) N/A 52.0
 
March 12, 2019, 10 p.m. 4.1 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 68.0 ppb (52) N/A 8.0 μg/m3 (7) N/A 52.0
 
March 12, 2019, 9 p.m. 5.5 ppb (5) 1.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 64.0 ppb (49) N/A 8.0 μg/m3 (7) N/A 49.0
 
March 12, 2019, 8 p.m. 6.5 ppb (6) 1.7 ppb (2) N/A 5.0 ppb (5) N/A N/A 58.0 ppb (45) N/A 7.0 μg/m3 (6) N/A 45.0
 
March 12, 2019, 7 p.m. 6.2 ppb (6) 2.1 ppb (2) N/A 4.0 ppb (4) N/A N/A 56.0 ppb (43) N/A 8.0 μg/m3 (7) N/A 43.0
 
March 12, 2019, 6 p.m. 5.7 ppb (5) 2.2 ppb (2) N/A 4.0 ppb (4) N/A N/A 55.0 ppb (42) N/A 9.0 μg/m3 (8) N/A 42.0
 
March 12, 2019, 5 p.m. 4.2 ppb (4) 1.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 53.0 ppb (41) N/A 5.0 μg/m3 (5) N/A 41.0
 
March 12, 2019, 4 p.m. 13.3 ppb (12) 5.4 ppb (5) N/A 8.0 ppb (7) N/A N/A 49.0 ppb (38) N/A 17.0 μg/m3 (15) N/A 38.0
 
March 12, 2019, 3 p.m. 11.2 ppb (10) 2.8 ppb (3) N/A 8.0 ppb (7) N/A N/A 46.0 ppb (35) N/A 10.0 μg/m3 (9) N/A 35.0
 
March 12, 2019, 2 p.m. 6.0 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 49.0 ppb (38) N/A 7.0 μg/m3 (6) N/A 38.0