AQSQID: 516500008

Site Name: Hampton

Location: Hampton City, VA

Reporting: True, Located: True

Current AQI: 33.0

Hampton City VA, US: 37.103683, -76.386948

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 26, 2019, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 43.0 ppb (33) 0.2 ppb (2) N/A 0.6 μg/m3 (2) 33.0
 
March 26, 2019, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 42.0 ppb (32) N/A N/A -0.3 μg/m3 (0) 32.0
 
March 26, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.3 μg/m3 (10) 10.0
 
March 26, 2019, 1 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 40.0 ppb (31) 0.2 ppb (2) N/A 3.7 μg/m3 (15) 31.0
 
March 26, 2019, noon N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 37.0 ppb (28) 0.2 ppb (2) N/A 6.3 μg/m3 (26) 28.0
 
March 26, 2019, 11 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 40.0 ppb (31) 0.2 ppb (2) N/A 12.5 μg/m3 (51) 51.0
 
March 26, 2019, 10 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 40.0 ppb (31) 0.2 ppb (2) N/A 15.2 μg/m3 (57) 57.0
 
March 26, 2019, 9 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 39.0 ppb (30) 0.3 ppb (3) N/A 14.3 μg/m3 (55) 55.0
 
March 26, 2019, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 42.0 ppb (32) 0.3 ppb (3) N/A 13.6 μg/m3 (53) 53.0
 
March 26, 2019, 7 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 46.0 ppb (35) 0.3 ppb (3) N/A 13.0 μg/m3 (52) 52.0
 
March 26, 2019, 6 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 49.0 ppb (38) 0.3 ppb (3) N/A 14.7 μg/m3 (56) 56.0
 
March 26, 2019, 5 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 49.0 ppb (38) 0.3 ppb (3) N/A 11.1 μg/m3 (46) 46.0
 
March 26, 2019, 4 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 49.0 ppb (38) 0.3 ppb (3) N/A 9.1 μg/m3 (38) 38.0
 
March 26, 2019, 3 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 50.0 ppb (38) 0.3 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
March 26, 2019, 2 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 51.0 ppb (39) 0.3 ppb (3) N/A 10.4 μg/m3 (43) 43.0
 
March 26, 2019, 1 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 52.0 ppb (40) 0.3 ppb (3) N/A 11.1 μg/m3 (46) 46.0
 
March 26, 2019, midnight N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 48.0 ppb (37) 0.3 ppb (3) N/A 11.3 μg/m3 (47) 47.0
 
March 25, 2019, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 49.0 ppb (38) 0.3 ppb (3) N/A 9.1 μg/m3 (38) 38.0
 
March 25, 2019, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 49.0 ppb (38) 0.3 ppb (3) N/A 9.1 μg/m3 (38) 38.0
 
March 25, 2019, 9 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 49.0 ppb (38) 0.3 ppb (3) N/A 8.7 μg/m3 (36) 38.0
 
March 25, 2019, 8 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 50.0 ppb (38) 0.3 ppb (3) N/A 7.9 μg/m3 (33) 38.0
 
March 25, 2019, 7 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 48.0 ppb (37) 0.3 ppb (3) N/A 8.4 μg/m3 (35) 37.0
 
March 25, 2019, 6 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 48.0 ppb (37) 0.3 ppb (3) N/A 7.4 μg/m3 (31) 37.0
 
March 25, 2019, 5 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 48.0 ppb (37) 0.3 ppb (3) N/A 6.5 μg/m3 (27) 37.0
 
March 25, 2019, 4 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 49.0 ppb (38) 0.3 ppb (3) N/A 6.5 μg/m3 (27) 38.0
 
March 25, 2019, 3 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 49.0 ppb (38) 0.3 ppb (3) N/A 5.7 μg/m3 (24) 38.0
 
March 25, 2019, 2 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 48.0 ppb (37) 0.3 ppb (3) N/A 4.1 μg/m3 (17) 37.0
 
March 25, 2019, 1 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 45.0 ppb (35) 0.3 ppb (3) N/A 5.5 μg/m3 (23) 35.0
 
March 25, 2019, noon N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 45.0 ppb (35) 0.3 ppb (3) N/A 8.1 μg/m3 (34) 35.0
 
March 25, 2019, 11 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 44.0 ppb (34) 0.3 ppb (3) N/A 8.7 μg/m3 (36) 36.0
 
March 25, 2019, 10 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 47.0 ppb (36) 0.3 ppb (3) N/A 7.4 μg/m3 (31) 36.0
 
March 25, 2019, 9 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A 0.3 ppb (3) N/A 6.8 μg/m3 (28) 28.0
 
March 25, 2019, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 49.0 ppb (38) 0.3 ppb (3) N/A 7.2 μg/m3 (30) 38.0
 
March 25, 2019, 7 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 49.0 ppb (38) N/A N/A 7.0 μg/m3 (29) 38.0
 
March 25, 2019, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 50.0 ppb (38) 0.3 ppb (3) N/A 8.5 μg/m3 (35) 38.0
 
March 25, 2019, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 50.0 ppb (38) 0.3 ppb (3) N/A 7.3 μg/m3 (30) 38.0
 
March 25, 2019, 4 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 51.0 ppb (39) 0.3 ppb (3) N/A 7.2 μg/m3 (30) 39.0
 
March 25, 2019, 3 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 50.0 ppb (38) 0.3 ppb (3) N/A 7.7 μg/m3 (32) 38.0
 
March 25, 2019, 2 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 49.0 ppb (38) 0.3 ppb (3) N/A 8.3 μg/m3 (35) 38.0
 
March 25, 2019, 1 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) 48.0 ppb (37) 0.3 ppb (3) N/A 8.8 μg/m3 (37) 37.0
 
March 25, 2019, midnight N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 51.0 ppb (39) 0.3 ppb (3) N/A 7.5 μg/m3 (31) 39.0
 
March 24, 2019, 11 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 53.0 ppb (41) 0.3 ppb (3) N/A 5.3 μg/m3 (22) 41.0
 
March 24, 2019, 10 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 55.0 ppb (42) 0.3 ppb (3) N/A 3.9 μg/m3 (16) 42.0
 
March 24, 2019, 9 p.m. N/A N/A N/A 3.0 ppb (3) N/A 2.0 ppb (3) 55.0 ppb (42) 0.2 ppb (2) N/A 2.3 μg/m3 (10) 42.0
 
March 24, 2019, 8 p.m. N/A N/A N/A 4.0 ppb (4) N/A 2.0 ppb (3) 54.0 ppb (42) 0.2 ppb (2) N/A 0.4 μg/m3 (2) 42.0
 
March 24, 2019, 7 p.m. N/A N/A N/A 3.0 ppb (3) N/A 2.0 ppb (3) 52.0 ppb (40) 0.2 ppb (2) N/A -0.5 μg/m3 (0) 40.0
 
March 24, 2019, 6 p.m. N/A N/A N/A 4.0 ppb (4) N/A 2.0 ppb (3) 50.0 ppb (38) 0.2 ppb (2) N/A 0.0 μg/m3 (0) 38.0
 
March 24, 2019, 5 p.m. N/A N/A N/A 4.0 ppb (4) N/A 2.0 ppb (3) 48.0 ppb (37) 0.2 ppb (2) N/A 0.3 μg/m3 (1) 37.0
 
March 24, 2019, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 49.0 ppb (38) 0.3 ppb (3) N/A 0.4 μg/m3 (2) 38.0
 
March 24, 2019, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 48.0 ppb (37) 0.3 ppb (3) N/A -1.0 μg/m3 (0) 37.0
 
March 24, 2019, 2 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) 42.0 ppb (32) 0.3 ppb (3) N/A 1.5 μg/m3 (6) 32.0
 
March 24, 2019, 1 p.m. N/A N/A N/A 8.0 ppb (7) N/A 1.0 ppb (1) 37.0 ppb (28) 0.4 ppb (4) N/A 4.8 μg/m3 (20) 28.0
 
March 24, 2019, noon N/A N/A N/A 12.0 ppb (11) N/A 1.0 ppb (1) 18.0 ppb (14) 0.4 ppb (4) N/A 7.3 μg/m3 (30) 30.0
 
March 24, 2019, 11 a.m. N/A N/A N/A 18.0 ppb (17) N/A 1.0 ppb (1) 3.0 ppb (2) 0.4 ppb (4) N/A 8.6 μg/m3 (36) 36.0
 
March 24, 2019, 10 a.m. N/A N/A N/A 20.0 ppb (19) N/A 1.0 ppb (1) 1.0 ppb (1) 0.4 ppb (4) N/A 8.2 μg/m3 (34) 34.0
 
March 24, 2019, 9 a.m. N/A N/A N/A 17.0 ppb (16) N/A 1.0 ppb (1) 3.0 ppb (2) 0.4 ppb (4) N/A 6.6 μg/m3 (28) 28.0
 
March 24, 2019, 8 a.m. N/A N/A N/A 18.0 ppb (17) N/A 1.0 ppb (1) 6.0 ppb (5) 0.4 ppb (4) N/A 7.2 μg/m3 (30) 30.0
 
March 24, 2019, 7 a.m. N/A N/A N/A 16.0 ppb (15) N/A 1.0 ppb (1) 9.0 ppb (7) 0.4 ppb (4) N/A 8.6 μg/m3 (36) 36.0
 
March 24, 2019, 6 a.m. N/A N/A N/A 11.0 ppb (10) N/A 1.0 ppb (1) 14.0 ppb (11) 0.3 ppb (3) N/A 9.2 μg/m3 (38) 38.0
 
March 24, 2019, 5 a.m. N/A N/A N/A 11.0 ppb (10) N/A 1.0 ppb (1) 16.0 ppb (12) 0.4 ppb (4) N/A 9.7 μg/m3 (40) 40.0
 
March 24, 2019, 4 a.m. N/A N/A N/A 10.0 ppb (9) N/A 1.0 ppb (1) 21.0 ppb (16) 0.3 ppb (3) N/A 9.2 μg/m3 (38) 38.0
 
March 24, 2019, 3 a.m. N/A N/A N/A 8.0 ppb (7) N/A 1.0 ppb (1) 24.0 ppb (18) 0.3 ppb (3) N/A 9.1 μg/m3 (38) 38.0
 
March 24, 2019, 2 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 31.0 ppb (24) 0.3 ppb (3) N/A 8.7 μg/m3 (36) 36.0
 
March 24, 2019, 1 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 42.0 ppb (32) 0.3 ppb (3) N/A 6.6 μg/m3 (28) 32.0
 
March 24, 2019, midnight N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 45.0 ppb (35) 0.3 ppb (3) N/A 6.2 μg/m3 (26) 35.0
 
March 23, 2019, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 47.0 ppb (36) 0.3 ppb (3) N/A 4.9 μg/m3 (20) 36.0
 
March 23, 2019, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 50.0 ppb (38) 0.3 ppb (3) N/A 1.4 μg/m3 (6) 38.0
 
March 23, 2019, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 51.0 ppb (39) 0.3 ppb (3) N/A 0.8 μg/m3 (3) 39.0
 
March 23, 2019, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 50.0 ppb (38) 0.3 ppb (3) N/A -0.5 μg/m3 (0) 38.0
 
March 23, 2019, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 49.0 ppb (38) 0.3 ppb (3) N/A -0.9 μg/m3 (0) 38.0
 
March 23, 2019, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 48.0 ppb (37) 0.3 ppb (3) N/A -0.9 μg/m3 (0) 37.0
 
March 23, 2019, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 47.0 ppb (36) 0.3 ppb (3) N/A -0.6 μg/m3 (0) 36.0
 
March 23, 2019, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 45.0 ppb (35) 0.3 ppb (3) N/A 0.3 μg/m3 (1) 35.0
 
March 23, 2019, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 42.0 ppb (32) 0.3 ppb (3) N/A 0.7 μg/m3 (3) 32.0
 
March 23, 2019, 2 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 40.0 ppb (31) 0.3 ppb (3) N/A 1.1 μg/m3 (5) 31.0
 
March 23, 2019, 1 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 38.0 ppb (29) 0.2 ppb (2) N/A 2.5 μg/m3 (10) 29.0
 
March 23, 2019, noon N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 37.0 ppb (28) 0.2 ppb (2) N/A 2.3 μg/m3 (10) 28.0
 
March 23, 2019, 11 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 38.0 ppb (29) 0.2 ppb (2) N/A 3.4 μg/m3 (14) 29.0
 
March 23, 2019, 10 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 38.0 ppb (29) 0.2 ppb (2) N/A 2.5 μg/m3 (10) 29.0
 
March 23, 2019, 9 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 38.0 ppb (29) 0.2 ppb (2) N/A 2.2 μg/m3 (9) 29.0
 
March 23, 2019, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 39.0 ppb (30) 0.2 ppb (2) N/A 1.5 μg/m3 (6) 30.0
 
March 23, 2019, 7 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 40.0 ppb (31) 0.2 ppb (2) N/A 0.3 μg/m3 (1) 31.0
 
March 23, 2019, 6 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 40.0 ppb (31) 0.2 ppb (2) N/A -1.9 μg/m3 (0) 31.0
 
March 23, 2019, 5 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 40.0 ppb (31) 0.2 ppb (2) N/A 0.1 μg/m3 (0) 31.0
 
March 23, 2019, 4 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 41.0 ppb (32) 0.2 ppb (2) N/A 4.1 μg/m3 (17) 32.0
 
March 23, 2019, 3 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (31) 0.2 ppb (2) N/A 4.3 μg/m3 (18) 31.0
 
March 23, 2019, 2 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 41.0 ppb (32) 0.2 ppb (2) N/A 5.4 μg/m3 (23) 32.0
 
March 23, 2019, 1 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 42.0 ppb (32) 0.2 ppb (2) N/A 6.9 μg/m3 (29) 32.0
 
March 23, 2019, midnight N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 44.0 ppb (34) 0.2 ppb (2) N/A 9.6 μg/m3 (40) 40.0
 
March 22, 2019, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 45.0 ppb (35) 0.3 ppb (3) N/A 8.9 μg/m3 (37) 37.0
 
March 22, 2019, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 48.0 ppb (37) 0.3 ppb (3) N/A 4.2 μg/m3 (18) 37.0
 
March 22, 2019, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 47.0 ppb (36) 0.3 ppb (3) N/A 3.1 μg/m3 (13) 36.0
 
March 22, 2019, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 47.0 ppb (36) 0.3 ppb (3) N/A 2.4 μg/m3 (10) 36.0
 
March 22, 2019, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 49.0 ppb (38) 0.2 ppb (2) N/A 0.8 μg/m3 (3) 38.0
 
March 22, 2019, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 49.0 ppb (38) 0.3 ppb (3) N/A 2.9 μg/m3 (12) 38.0
 
March 22, 2019, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 48.0 ppb (37) 0.3 ppb (3) N/A 2.8 μg/m3 (12) 37.0
 
March 22, 2019, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 46.0 ppb (35) 0.3 ppb (3) N/A 2.3 μg/m3 (10) 35.0
 
March 22, 2019, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 45.0 ppb (35) 0.3 ppb (3) N/A 3.2 μg/m3 (13) 35.0
 
March 22, 2019, 2 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 43.0 ppb (33) 0.3 ppb (3) N/A 3.9 μg/m3 (16) 33.0
 
March 22, 2019, 1 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 38.0 ppb (29) 0.3 ppb (3) N/A 5.2 μg/m3 (22) 29.0
 
March 22, 2019, noon N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 35.0 ppb (27) 0.3 ppb (3) N/A 5.8 μg/m3 (24) 27.0
 
March 22, 2019, 11 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 34.0 ppb (26) 0.3 ppb (3) N/A 6.0 μg/m3 (25) 26.0
 
March 22, 2019, 10 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 36.0 ppb (28) 0.3 ppb (3) N/A 5.2 μg/m3 (22) 28.0
 
March 22, 2019, 9 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.2 ppb (2) N/A 5.3 μg/m3 (22) 22.0
 
March 22, 2019, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 39.0 ppb (30) 0.2 ppb (2) N/A 4.8 μg/m3 (20) 30.0
 
March 22, 2019, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 41.0 ppb (32) N/A N/A 3.9 μg/m3 (16) 32.0
 
March 22, 2019, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 46.0 ppb (35) 0.2 ppb (2) N/A 1.1 μg/m3 (5) 35.0
 
March 22, 2019, 5 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 44.0 ppb (34) 0.2 ppb (2) N/A 0.0 μg/m3 (0) 34.0
 
March 22, 2019, 4 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 44.0 ppb (34) 0.2 ppb (2) N/A 0.1 μg/m3 (0) 34.0
 
March 22, 2019, 3 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 46.0 ppb (35) 0.2 ppb (2) N/A 1.1 μg/m3 (5) 35.0
 
March 22, 2019, 2 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 47.0 ppb (36) 0.2 ppb (2) N/A 2.5 μg/m3 (10) 36.0
 
March 22, 2019, 1 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 43.0 ppb (33) 0.2 ppb (2) N/A 4.1 μg/m3 (17) 33.0
 
March 22, 2019, midnight N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 42.0 ppb (32) 0.2 ppb (2) N/A 5.4 μg/m3 (23) 32.0
 
March 21, 2019, 11 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 39.0 ppb (30) 0.2 ppb (2) N/A 6.8 μg/m3 (28) 30.0
 
March 21, 2019, 10 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 32.0 ppb (25) 0.3 ppb (3) N/A 5.7 μg/m3 (24) 25.0
 
March 21, 2019, 9 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 32.0 ppb (25) 0.2 ppb (2) N/A 2.4 μg/m3 (10) 25.0
 
March 21, 2019, 8 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 40.0 ppb (31) 0.2 ppb (2) N/A 1.3 μg/m3 (5) 31.0
 
March 21, 2019, 7 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 46.0 ppb (35) 0.2 ppb (2) N/A 3.7 μg/m3 (15) 35.0
 
March 21, 2019, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 51.0 ppb (39) 0.2 ppb (2) N/A 5.8 μg/m3 (24) 39.0
 
March 21, 2019, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 52.0 ppb (40) 0.2 ppb (2) N/A 4.2 μg/m3 (18) 40.0
 
March 21, 2019, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 51.0 ppb (39) 0.2 ppb (2) N/A 3.3 μg/m3 (14) 39.0
 
March 21, 2019, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 50.0 ppb (38) 0.2 ppb (2) N/A 2.9 μg/m3 (12) 38.0
 
March 21, 2019, 2 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 50.0 ppb (38) 0.2 ppb (2) N/A 0.2 μg/m3 (1) 38.0
 
March 21, 2019, 1 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 48.0 ppb (37) 0.2 ppb (2) N/A -0.9 μg/m3 (0) 37.0
 
March 21, 2019, noon N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 44.0 ppb (34) 0.2 ppb (2) N/A 0.5 μg/m3 (2) 34.0
 
March 21, 2019, 11 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 45.0 ppb (35) 0.2 ppb (2) N/A 1.5 μg/m3 (6) 35.0
 
March 21, 2019, 10 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 41.0 ppb (32) 0.2 ppb (2) N/A 0.2 μg/m3 (1) 32.0
 
March 21, 2019, 9 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 41.0 ppb (32) 0.2 ppb (2) N/A -0.6 μg/m3 (0) 32.0
 
March 21, 2019, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 42.0 ppb (32) 0.2 ppb (2) N/A -1.4 μg/m3 (0) 32.0
 
March 21, 2019, 7 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (31) 0.2 ppb (2) N/A -1.7 μg/m3 (0) 31.0
 
March 21, 2019, 6 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (30) 0.2 ppb (2) N/A -0.8 μg/m3 (0) 30.0
 
March 21, 2019, 5 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 39.0 ppb (30) 0.2 ppb (2) N/A -0.7 μg/m3 (0) 30.0
 
March 21, 2019, 4 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (32) 0.2 ppb (2) N/A 0.2 μg/m3 (1) 32.0
 
March 21, 2019, 3 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 37.0 ppb (28) 0.2 ppb (2) N/A 0.6 μg/m3 (2) 28.0
 
March 21, 2019, 2 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 41.0 ppb (32) 0.2 ppb (2) N/A 3.3 μg/m3 (14) 32.0
 
March 21, 2019, 1 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 44.0 ppb (34) 0.2 ppb (2) N/A 5.0 μg/m3 (21) 34.0
 
March 21, 2019, midnight N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 44.0 ppb (34) 0.2 ppb (2) N/A 5.5 μg/m3 (23) 34.0
 
March 20, 2019, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (33) 0.3 ppb (3) N/A 6.5 μg/m3 (27) 33.0
 
March 20, 2019, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 45.0 ppb (35) 0.3 ppb (3) N/A 7.2 μg/m3 (30) 35.0
 
March 20, 2019, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 46.0 ppb (35) 0.3 ppb (3) N/A 6.8 μg/m3 (28) 35.0
 
March 20, 2019, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 48.0 ppb (37) 0.3 ppb (3) N/A 6.3 μg/m3 (26) 37.0
 
March 20, 2019, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 48.0 ppb (37) 0.3 ppb (3) N/A 3.5 μg/m3 (15) 37.0
 
March 20, 2019, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 49.0 ppb (38) 0.2 ppb (2) N/A 2.3 μg/m3 (10) 38.0
 
March 20, 2019, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 49.0 ppb (38) 0.2 ppb (2) N/A 3.5 μg/m3 (15) 38.0
 
March 20, 2019, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 48.0 ppb (37) 0.2 ppb (2) N/A 6.6 μg/m3 (28) 37.0
 
March 20, 2019, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 48.0 ppb (37) 0.2 ppb (2) N/A 8.8 μg/m3 (37) 37.0
 
March 20, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.7 μg/m3 (45) 45.0
 
March 20, 2019, 1 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 48.0 ppb (37) 0.3 ppb (3) N/A 6.5 μg/m3 (27) 37.0
 
March 20, 2019, noon N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 48.0 ppb (37) 0.3 ppb (3) N/A 6.7 μg/m3 (28) 37.0
 
March 20, 2019, 11 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 48.0 ppb (37) 0.3 ppb (3) N/A N/A 37.0
 
March 20, 2019, 10 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 49.0 ppb (38) 0.3 ppb (3) N/A N/A 38.0
 
March 20, 2019, 9 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 47.0 ppb (36) 0.3 ppb (3) N/A N/A 36.0
 
March 20, 2019, 8 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 49.0 ppb (38) 0.2 ppb (2) N/A N/A 38.0
 
March 20, 2019, 7 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 49.0 ppb (38) 0.3 ppb (3) N/A N/A 38.0
 
March 20, 2019, 6 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 50.0 ppb (38) 0.3 ppb (3) N/A N/A 38.0
 
March 20, 2019, 5 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 49.0 ppb (38) 0.3 ppb (3) N/A N/A 38.0
 
March 20, 2019, 4 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 51.0 ppb (39) 0.3 ppb (3) N/A N/A 39.0
 
March 20, 2019, 3 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 51.0 ppb (39) 0.3 ppb (3) N/A N/A 39.0
 
March 20, 2019, 2 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 49.0 ppb (38) 0.3 ppb (3) N/A N/A 38.0
 
March 20, 2019, 1 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 50.0 ppb (38) 0.3 ppb (3) N/A N/A 38.0
 
March 20, 2019, midnight N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 49.0 ppb (38) 0.3 ppb (3) N/A N/A 38.0
 
March 19, 2019, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 48.0 ppb (37) 0.3 ppb (3) N/A N/A 37.0
 
March 19, 2019, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 50.0 ppb (38) 0.3 ppb (3) N/A N/A 38.0
 
March 19, 2019, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 52.0 ppb (40) 0.3 ppb (3) N/A N/A 40.0
 
March 19, 2019, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 52.0 ppb (40) 0.2 ppb (2) N/A N/A 40.0
 
March 19, 2019, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 51.0 ppb (39) 0.2 ppb (2) N/A N/A 39.0
 
March 19, 2019, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 51.0 ppb (39) 0.2 ppb (2) N/A N/A 39.0
 
March 19, 2019, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 49.0 ppb (38) 0.2 ppb (2) N/A N/A 38.0