AQSQID: 090010010

Site Name: Bridgeport

Location: Bridgeport, CT

Reporting: True, Located: True

Current AQI: 35.0

Bridgeport CT, US: 41.171398, -73.195297

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 19, 2019, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.29 ppb (3) N/A 8.5 μg/m3 (35) 35.0
 
Jan. 19, 2019, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.44 ppb (5) N/A 12.5 μg/m3 (51) 51.0
 
Jan. 19, 2019, noon N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.58 ppb (6) N/A 15.6 μg/m3 (58) 58.0
 
Jan. 19, 2019, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 0.76 ppb (8) N/A 18.0 μg/m3 (63) 63.0
 
Jan. 19, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.69 ppb (8) N/A 17.9 μg/m3 (63) 63.0
 
Jan. 19, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.51 ppb (6) N/A 17.3 μg/m3 (61) 61.0
 
Jan. 19, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.37 ppb (4) N/A 16.4 μg/m3 (59) 59.0
 
Jan. 19, 2019, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.46 ppb (5) N/A 18.4 μg/m3 (64) 64.0
 
Jan. 19, 2019, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 17.3 μg/m3 (61) 61.0
 
Jan. 19, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.44 ppb (5) N/A 16.5 μg/m3 (60) 60.0
 
Jan. 19, 2019, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.36 ppb (4) N/A 16.5 μg/m3 (60) 60.0
 
Jan. 19, 2019, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.39 ppb (4) N/A 18.2 μg/m3 (63) 63.0
 
Jan. 19, 2019, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.44 ppb (5) N/A 19.5 μg/m3 (66) 66.0
 
Jan. 19, 2019, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 19.1 μg/m3 (65) 65.0
 
Jan. 19, 2019, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.39 ppb (4) N/A 16.4 μg/m3 (59) 59.0
 
Jan. 18, 2019, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.34 ppb (4) N/A 14.3 μg/m3 (55) 55.0
 
Jan. 18, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A 0.52 ppb (6) N/A 13.2 μg/m3 (53) 53.0
 
Jan. 18, 2019, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.58 ppb (6) N/A 11.2 μg/m3 (47) 47.0
 
Jan. 18, 2019, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.6 ppb (7) N/A 9.3 μg/m3 (39) 39.0
 
Jan. 18, 2019, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.49 ppb (5) N/A 9.6 μg/m3 (40) 40.0
 
Jan. 18, 2019, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.42 ppb (5) N/A 9.7 μg/m3 (40) 40.0
 
Jan. 18, 2019, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.42 ppb (5) N/A 10.1 μg/m3 (42) 42.0
 
Jan. 18, 2019, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.33 ppb (4) N/A 10.1 μg/m3 (42) 42.0
 
Jan. 18, 2019, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.37 ppb (4) N/A 9.4 μg/m3 (39) 39.0
 
Jan. 18, 2019, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.42 ppb (5) N/A 9.2 μg/m3 (38) 38.0
 
Jan. 18, 2019, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.41 ppb (5) N/A 9.7 μg/m3 (40) 40.0
 
Jan. 18, 2019, noon N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.37 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 18, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.35 ppb (4) N/A 9.3 μg/m3 (39) 39.0
 
Jan. 18, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 10.1 μg/m3 (42) 42.0
 
Jan. 18, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 8.2 μg/m3 (34) 34.0
 
Jan. 18, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 7.3 μg/m3 (30) 30.0
 
Jan. 18, 2019, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 6.7 μg/m3 (28) 28.0
 
Jan. 18, 2019, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.31 ppb (3) N/A 6.6 μg/m3 (28) 28.0
 
Jan. 18, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.41 ppb (5) N/A 7.2 μg/m3 (30) 30.0
 
Jan. 18, 2019, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.34 ppb (4) N/A 4.6 μg/m3 (19) 19.0
 
Jan. 18, 2019, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 4.2 μg/m3 (18) 18.0
 
Jan. 18, 2019, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 4.1 μg/m3 (17) 17.0
 
Jan. 18, 2019, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.37 ppb (4) N/A 4.8 μg/m3 (20) 20.0
 
Jan. 18, 2019, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 0.42 ppb (5) N/A 5.8 μg/m3 (24) 24.0
 
Jan. 17, 2019, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.41 ppb (5) N/A 4.4 μg/m3 (18) 18.0
 
Jan. 17, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A 0.51 ppb (6) N/A 5.2 μg/m3 (22) 22.0
 
Jan. 17, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 0.43 ppb (5) N/A 5.6 μg/m3 (23) 23.0
 
Jan. 17, 2019, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 0.41 ppb (5) N/A 5.6 μg/m3 (23) 23.0
 
Jan. 17, 2019, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 0.37 ppb (4) N/A 5.6 μg/m3 (23) 23.0
 
Jan. 17, 2019, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.29 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2019, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 4.6 μg/m3 (19) 19.0
 
Jan. 17, 2019, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.18 ppb (2) N/A 4.4 μg/m3 (18) 18.0
 
Jan. 17, 2019, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.17 ppb (2) N/A 3.9 μg/m3 (16) 16.0
 
Jan. 17, 2019, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.19 ppb (2) N/A 4.1 μg/m3 (17) 17.0
 
Jan. 17, 2019, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.24 ppb (3) N/A 4.1 μg/m3 (17) 17.0
 
Jan. 17, 2019, noon N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.22 ppb (2) N/A 6.2 μg/m3 (26) 26.0
 
Jan. 17, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 4.1 μg/m3 (17) 17.0
 
Jan. 17, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.18 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 17, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.16 ppb (2) N/A 3.6 μg/m3 (15) 15.0
 
Jan. 17, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.15 ppb (2) N/A 3.6 μg/m3 (15) 15.0
 
Jan. 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 3.5 μg/m3 (15) 15.0
 
Jan. 17, 2019, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.15 ppb (2) N/A 3.5 μg/m3 (15) 15.0
 
Jan. 17, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.15 ppb (2) N/A 3.8 μg/m3 (16) 16.0
 
Jan. 17, 2019, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.15 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 17, 2019, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.16 ppb (2) N/A 4.5 μg/m3 (19) 19.0
 
Jan. 17, 2019, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.16 ppb (2) N/A 4.3 μg/m3 (18) 18.0
 
Jan. 17, 2019, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 3.8 μg/m3 (16) 16.0
 
Jan. 17, 2019, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.36 ppb (4) N/A 4.2 μg/m3 (18) 18.0
 
Jan. 16, 2019, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.36 ppb (4) N/A 4.4 μg/m3 (18) 18.0
 
Jan. 16, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A 0.44 ppb (5) N/A 4.3 μg/m3 (18) 18.0
 
Jan. 16, 2019, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.31 ppb (3) N/A 5.1 μg/m3 (21) 21.0
 
Jan. 16, 2019, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.29 ppb (3) N/A 5.5 μg/m3 (23) 23.0
 
Jan. 16, 2019, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.24 ppb (3) N/A 5.7 μg/m3 (24) 24.0
 
Jan. 16, 2019, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.25 ppb (3) N/A 9.3 μg/m3 (39) 39.0
 
Jan. 16, 2019, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 0.29 ppb (3) N/A 14.0 μg/m3 (54) 54.0
 
Jan. 16, 2019, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 0.37 ppb (4) N/A 23.5 μg/m3 (74) 74.0
 
Jan. 16, 2019, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 0.48 ppb (5) N/A N/A 5.0
 
Jan. 16, 2019, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 24.0 μg/m3 (76) 76.0
 
Jan. 16, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 0.72 ppb (8) N/A 23.4 μg/m3 (74) 74.0
 
Jan. 16, 2019, noon N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 0.61 ppb (7) N/A 21.7 μg/m3 (71) 71.0
 
Jan. 16, 2019, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 0.87 ppb (10) N/A 20.1 μg/m3 (67) 67.0
 
Jan. 16, 2019, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 0.67 ppb (7) N/A 17.8 μg/m3 (62) 62.0
 
Jan. 16, 2019, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 0.61 ppb (7) N/A 18.0 μg/m3 (63) 63.0
 
Jan. 16, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 18.5 μg/m3 (64) 64.0
 
Jan. 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 17.8 μg/m3 (62) 62.0
 
Jan. 16, 2019, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.49 ppb (5) N/A 17.7 μg/m3 (62) 62.0
 
Jan. 16, 2019, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 0.75 ppb (8) N/A 20.7 μg/m3 (69) 69.0
 
Jan. 16, 2019, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 0.74 ppb (8) N/A 22.6 μg/m3 (73) 73.0
 
Jan. 16, 2019, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 0.65 ppb (7) N/A 23.1 μg/m3 (74) 74.0
 
Jan. 16, 2019, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 0.59 ppb (7) N/A 21.7 μg/m3 (71) 71.0
 
Jan. 16, 2019, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 19.8 μg/m3 (67) 67.0
 
Jan. 16, 2019, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.48 ppb (5) N/A 19.0 μg/m3 (65) 65.0
 
Jan. 15, 2019, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.45 ppb (5) N/A 19.0 μg/m3 (65) 65.0
 
Jan. 15, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A 0.32 ppb (4) N/A 17.6 μg/m3 (62) 62.0
 
Jan. 15, 2019, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.25 ppb (3) N/A 15.8 μg/m3 (58) 58.0
 
Jan. 15, 2019, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.23 ppb (3) N/A 14.1 μg/m3 (54) 54.0
 
Jan. 15, 2019, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 0.2 ppb (2) N/A 11.9 μg/m3 (50) 50.0
 
Jan. 15, 2019, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.19 ppb (2) N/A 9.2 μg/m3 (38) 38.0
 
Jan. 15, 2019, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.19 ppb (2) N/A 7.7 μg/m3 (32) 32.0
 
Jan. 15, 2019, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.17 ppb (2) N/A 7.1 μg/m3 (30) 30.0
 
Jan. 15, 2019, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.19 ppb (2) N/A 6.7 μg/m3 (28) 28.0
 
Jan. 15, 2019, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 6.8 μg/m3 (28) 28.0
 
Jan. 15, 2019, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.32 ppb (4) N/A 7.7 μg/m3 (32) 32.0
 
Jan. 15, 2019, noon N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.53 ppb (6) N/A 9.7 μg/m3 (40) 40.0
 
Jan. 15, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.44 ppb (5) N/A 9.3 μg/m3 (39) 39.0
 
Jan. 15, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.33 ppb (4) N/A 8.5 μg/m3 (35) 35.0
 
Jan. 15, 2019, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 0.33 ppb (4) N/A 9.3 μg/m3 (39) 39.0
 
Jan. 15, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 9.7 μg/m3 (40) 40.0
 
Jan. 15, 2019, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 9.4 μg/m3 (39) 39.0
 
Jan. 15, 2019, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.37 ppb (4) N/A 8.8 μg/m3 (37) 37.0
 
Jan. 15, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.33 ppb (4) N/A 8.5 μg/m3 (35) 35.0
 
Jan. 15, 2019, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.36 ppb (4) N/A 7.8 μg/m3 (32) 32.0
 
Jan. 15, 2019, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.29 ppb (3) N/A 6.8 μg/m3 (28) 28.0
 
Jan. 15, 2019, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.28 ppb (3) N/A 7.8 μg/m3 (32) 32.0
 
Jan. 15, 2019, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.27 ppb (3) N/A 6.8 μg/m3 (28) 28.0
 
Jan. 15, 2019, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.26 ppb (3) N/A 5.5 μg/m3 (23) 23.0
 
Jan. 14, 2019, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 5.2 μg/m3 (22) 22.0
 
Jan. 14, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A 0.27 ppb (3) N/A 4.9 μg/m3 (20) 20.0
 
Jan. 14, 2019, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.23 ppb (3) N/A 5.2 μg/m3 (22) 22.0
 
Jan. 14, 2019, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.22 ppb (2) N/A 4.2 μg/m3 (18) 18.0
 
Jan. 14, 2019, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.19 ppb (2) N/A 3.5 μg/m3 (15) 15.0
 
Jan. 14, 2019, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.17 ppb (2) N/A 3.7 μg/m3 (15) 15.0
 
Jan. 14, 2019, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.18 ppb (2) N/A 3.9 μg/m3 (16) 16.0
 
Jan. 14, 2019, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.24 ppb (3) N/A 3.8 μg/m3 (16) 16.0
 
Jan. 14, 2019, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.28 ppb (3) N/A 3.5 μg/m3 (15) 15.0
 
Jan. 14, 2019, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.27 ppb (3) N/A 4.2 μg/m3 (18) 18.0
 
Jan. 14, 2019, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.27 ppb (3) N/A 4.6 μg/m3 (19) 19.0
 
Jan. 14, 2019, noon N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.27 ppb (3) N/A 4.6 μg/m3 (19) 19.0
 
Jan. 14, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.26 ppb (3) N/A 4.7 μg/m3 (20) 20.0
 
Jan. 14, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.22 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 14, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.19 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 14, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 5.7 μg/m3 (24) 24.0
 
Jan. 14, 2019, 7 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
 
Jan. 14, 2019, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.21 ppb (2) N/A 6.5 μg/m3 (27) 27.0
 
Jan. 14, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.27 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 14, 2019, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.39 ppb (4) N/A 8.1 μg/m3 (34) 34.0
 
Jan. 14, 2019, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.41 ppb (5) N/A 8.4 μg/m3 (35) 35.0
 
Jan. 14, 2019, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.42 ppb (5) N/A 8.2 μg/m3 (34) 34.0
 
Jan. 14, 2019, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.34 ppb (4) N/A 7.4 μg/m3 (31) 31.0
 
Jan. 14, 2019, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 6.4 μg/m3 (27) 27.0
 
Jan. 13, 2019, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.36 ppb (4) N/A 5.9 μg/m3 (25) 25.0
 
Jan. 13, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A 0.33 ppb (4) N/A 4.5 μg/m3 (19) 19.0
 
Jan. 13, 2019, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.27 ppb (3) N/A 4.1 μg/m3 (17) 17.0
 
Jan. 13, 2019, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.23 ppb (3) N/A 4.5 μg/m3 (19) 19.0
 
Jan. 13, 2019, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.23 ppb (3) N/A 4.3 μg/m3 (18) 18.0
 
Jan. 13, 2019, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.19 ppb (2) N/A 4.4 μg/m3 (18) 18.0
 
Jan. 13, 2019, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 4.2 μg/m3 (18) 18.0
 
Jan. 13, 2019, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.19 ppb (2) N/A 3.9 μg/m3 (16) 16.0
 
Jan. 13, 2019, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.21 ppb (2) N/A 3.6 μg/m3 (15) 15.0
 
Jan. 13, 2019, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.17 ppb (2) N/A 3.6 μg/m3 (15) 15.0
 
Jan. 13, 2019, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.17 ppb (2) N/A 3.4 μg/m3 (14) 14.0
 
Jan. 13, 2019, noon N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.19 ppb (2) N/A 3.7 μg/m3 (15) 15.0
 
Jan. 13, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.16 ppb (2) N/A 3.5 μg/m3 (15) 15.0
 
Jan. 13, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.14 ppb (2) N/A 3.4 μg/m3 (14) 14.0
 
Jan. 13, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.16 ppb (2) N/A 3.9 μg/m3 (16) 16.0
 
Jan. 13, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.16 ppb (2) N/A 3.9 μg/m3 (16) 16.0
 
Jan. 13, 2019, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.3 μg/m3 (18) 18.0
 
Jan. 13, 2019, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.17 ppb (2) N/A 4.3 μg/m3 (18) 18.0
 
Jan. 13, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.18 ppb (2) N/A 4.3 μg/m3 (18) 18.0
 
Jan. 13, 2019, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 5.5 μg/m3 (23) 23.0
 
Jan. 13, 2019, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.24 ppb (3) N/A 7.1 μg/m3 (30) 30.0
 
Jan. 13, 2019, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.25 ppb (3) N/A 9.5 μg/m3 (40) 40.0
 
Jan. 13, 2019, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.29 ppb (3) N/A 9.4 μg/m3 (39) 39.0
 
Jan. 13, 2019, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 7.2 μg/m3 (30) 30.0
 
Jan. 12, 2019, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.27 ppb (3) N/A 6.7 μg/m3 (28) 28.0
 
Jan. 12, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A 0.23 ppb (3) N/A 5.3 μg/m3 (22) 22.0
 
Jan. 12, 2019, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.21 ppb (2) N/A 4.5 μg/m3 (19) 19.0
 
Jan. 12, 2019, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.19 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 12, 2019, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.18 ppb (2) N/A 4.1 μg/m3 (17) 17.0
 
Jan. 12, 2019, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.16 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 12, 2019, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.19 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 12, 2019, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.17 ppb (2) N/A 4.2 μg/m3 (18) 18.0
 
Jan. 12, 2019, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.18 ppb (2) N/A 4.3 μg/m3 (18) 18.0