AQSQID: 440071010

Site Name: E Providence

Location: E Providence, RI

Reporting: True, Located: True

Current AQI: 33.0

E Providence RI, US: 41.840302, -71.361702

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 22, 2019, 1 a.m. 2.9 ppb (3) 0.2 ppb (0) 4.0 ppb (4) 3.0 ppb (3) 3.7 ppb (3) 0.0 ppb (0) 43.0 ppb (33) 0.16 ppb (2) N/A 4.0 μg/m3 (17) 33.0
 
Jan. 22, 2019, midnight 3.6 ppb (3) 0.2 ppb (0) 4.0 ppb (4) 3.0 ppb (3) 3.8 ppb (4) 0.0 ppb (0) 42.0 ppb (32) 0.17 ppb (2) N/A 2.0 μg/m3 (8) 32.0
 
Jan. 21, 2019, 11 p.m. 3.9 ppb (4) 0.2 ppb (0) 4.1 ppb (4) 4.0 ppb (4) 3.9 ppb (4) 0.0 ppb (0) 40.0 ppb (31) 0.17 ppb (2) N/A 1.0 μg/m3 (4) 31.0
 
Jan. 21, 2019, 10 p.m. 3.5 ppb (3) 0.2 ppb (0) 3.5 ppb (3) 3.0 ppb (3) 3.3 ppb (3) 0.0 ppb (0) 40.0 ppb (31) 0.17 ppb (2) N/A -1.0 μg/m3 (0) 31.0
 
Jan. 21, 2019, 9 p.m. 2.9 ppb (3) 0.3 ppb (0) 3.1 ppb (3) 3.0 ppb (3) 2.8 ppb (3) 0.0 ppb (0) 40.0 ppb (31) 0.17 ppb (2) N/A -3.0 μg/m3 (0) 31.0
 
Jan. 21, 2019, 8 p.m. 3.1 ppb (3) 0.6 ppb (1) 3.3 ppb (3) 3.0 ppb (3) 2.7 ppb (3) 0.0 ppb (0) 40.0 ppb (31) 0.17 ppb (2) N/A -1.0 μg/m3 (0) 31.0
 
Jan. 21, 2019, 7 p.m. 3.1 ppb (3) 0.8 ppb (1) 3.2 ppb (3) 2.0 ppb (2) 2.4 ppb (2) 0.0 ppb (0) 39.0 ppb (30) 0.16 ppb (2) N/A 0.0 μg/m3 (0) 30.0
 
Jan. 21, 2019, 6 p.m. 3.0 ppb (3) 1.0 ppb (1) 2.9 ppb (3) 2.0 ppb (2) 1.9 ppb (2) 0.0 ppb (0) 39.0 ppb (30) 0.16 ppb (2) N/A 1.0 μg/m3 (4) 30.0
 
Jan. 21, 2019, 5 p.m. 3.1 ppb (3) 1.2 ppb (1) 2.8 ppb (3) 2.0 ppb (2) 1.7 ppb (2) 1.0 ppb (1) 39.0 ppb (30) 0.16 ppb (2) N/A 3.0 μg/m3 (12) 30.0
 
Jan. 21, 2019, 4 p.m. 3.2 ppb (3) 1.3 ppb (1) 3.0 ppb (3) 2.0 ppb (2) 1.7 ppb (2) 1.0 ppb (1) 39.0 ppb (30) 0.16 ppb (2) N/A 3.0 μg/m3 (12) 30.0
 
Jan. 21, 2019, 3 p.m. 3.7 ppb (3) 1.5 ppb (1) 3.3 ppb (3) 2.0 ppb (2) 1.9 ppb (2) 1.0 ppb (1) 38.0 ppb (29) 0.17 ppb (2) N/A 3.0 μg/m3 (12) 29.0
 
Jan. 21, 2019, 2 p.m. 4.9 ppb (5) 1.9 ppb (2) 4.5 ppb (4) 3.0 ppb (3) 2.6 ppb (2) 1.0 ppb (1) 37.0 ppb (28) 0.17 ppb (2) N/A 3.0 μg/m3 (12) 28.0
 
Jan. 21, 2019, 1 p.m. 4.5 ppb (4) 1.2 ppb (1) 3.9 ppb (4) 3.0 ppb (3) 2.7 ppb (3) 1.0 ppb (1) 37.0 ppb (28) 0.17 ppb (2) N/A 2.0 μg/m3 (8) 28.0
 
Jan. 21, 2019, noon 4.1 ppb (4) 0.4 ppb (0) 3.4 ppb (3) 4.0 ppb (4) 3.0 ppb (3) 0.0 ppb (0) 36.0 ppb (28) 0.17 ppb (2) N/A 3.0 μg/m3 (12) 28.0
 
Jan. 21, 2019, 11 a.m. 4.0 ppb (4) 0.2 ppb (0) 3.4 ppb (3) 4.0 ppb (4) 3.2 ppb (3) 0.0 ppb (0) 36.0 ppb (28) 0.17 ppb (2) N/A 2.0 μg/m3 (8) 28.0
 
Jan. 21, 2019, 10 a.m. 3.4 ppb (3) 0.2 ppb (0) 2.9 ppb (3) 3.0 ppb (3) 2.8 ppb (3) 0.0 ppb (0) 36.0 ppb (28) 0.16 ppb (2) N/A 2.0 μg/m3 (8) 28.0
 
Jan. 21, 2019, 9 a.m. 3.5 ppb (3) 0.2 ppb (0) 3.5 ppb (3) 3.0 ppb (3) 3.3 ppb (3) 0.0 ppb (0) 36.0 ppb (28) 0.16 ppb (2) N/A 4.0 μg/m3 (17) 28.0
 
Jan. 21, 2019, 8 a.m. 4.0 ppb (4) 0.2 ppb (0) 3.7 ppb (3) 4.0 ppb (4) 3.6 ppb (3) 0.0 ppb (0) 36.0 ppb (28) 0.16 ppb (2) N/A 6.0 μg/m3 (25) 28.0
 
Jan. 21, 2019, 7 a.m. 4.0 ppb (4) 0.2 ppb (0) 3.9 ppb (4) 4.0 ppb (4) 3.7 ppb (3) 0.0 ppb (0) 36.0 ppb (28) 0.17 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 21, 2019, 6 a.m. N/A N/A 3.7 ppb (3) N/A 3.5 ppb (3) N/A 36.0 ppb (28) N/A N/A 6.0 μg/m3 (25) 28.0
 
Jan. 21, 2019, 5 a.m. N/A N/A 2.6 ppb (2) N/A 2.4 ppb (2) N/A 37.0 ppb (28) N/A N/A 3.0 μg/m3 (12) 28.0
 
Jan. 21, 2019, 4 a.m. 3.4 ppb (3) 0.2 ppb (0) 2.8 ppb (3) 3.0 ppb (3) 2.6 ppb (2) 0.0 ppb (0) 37.0 ppb (28) 0.17 ppb (2) N/A 5.0 μg/m3 (21) 28.0
 
Jan. 21, 2019, 3 a.m. 2.9 ppb (3) 0.2 ppb (0) 2.3 ppb (2) 3.0 ppb (3) 2.1 ppb (2) 0.0 ppb (0) 38.0 ppb (29) 0.17 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 21, 2019, 2 a.m. 2.5 ppb (2) 0.1 ppb (0) 1.9 ppb (2) 2.0 ppb (2) 1.7 ppb (2) 0.0 ppb (0) 39.0 ppb (30) 0.17 ppb (2) N/A 5.0 μg/m3 (21) 30.0
 
Jan. 21, 2019, 1 a.m. 2.9 ppb (3) 0.1 ppb (0) 2.2 ppb (2) 3.0 ppb (3) 2.1 ppb (2) 0.0 ppb (0) 38.0 ppb (29) 0.18 ppb (2) N/A 3.0 μg/m3 (12) 29.0
 
Jan. 21, 2019, midnight 3.5 ppb (3) 0.2 ppb (0) 2.7 ppb (3) 3.0 ppb (3) 2.5 ppb (2) 0.0 ppb (0) 39.0 ppb (30) 0.17 ppb (2) N/A 5.0 μg/m3 (21) 30.0
 
Jan. 20, 2019, 11 p.m. 6.4 ppb (6) 0.2 ppb (0) 6.1 ppb (6) 6.0 ppb (6) 5.9 ppb (5) 0.0 ppb (0) 35.0 ppb (27) 0.21 ppb (2) N/A 5.0 μg/m3 (21) 27.0
 
Jan. 20, 2019, 10 p.m. 8.3 ppb (8) 0.2 ppb (0) 8.0 ppb (7) 8.0 ppb (7) 7.7 ppb (7) 0.0 ppb (0) 33.0 ppb (25) 0.22 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2019, 9 p.m. 6.8 ppb (6) 0.4 ppb (0) 6.4 ppb (6) 6.0 ppb (6) 5.9 ppb (5) 0.0 ppb (0) 35.0 ppb (27) 0.21 ppb (2) N/A 5.0 μg/m3 (21) 27.0
 
Jan. 20, 2019, 8 p.m. 6.3 ppb (6) 0.5 ppb (0) 7.2 ppb (7) 6.0 ppb (6) 6.7 ppb (6) 0.0 ppb (0) 35.0 ppb (27) 0.22 ppb (2) N/A 5.0 μg/m3 (21) 27.0
 
Jan. 20, 2019, 7 p.m. 13.5 ppb (12) 0.9 ppb (1) 14.5 ppb (13) 13.0 ppb (12) 13.6 ppb (13) 0.0 ppb (0) 26.0 ppb (20) 0.3 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 20, 2019, 6 p.m. 13.3 ppb (12) 1.3 ppb (1) 13.3 ppb (12) 12.0 ppb (11) 12.0 ppb (11) 0.0 ppb (0) 27.0 ppb (21) 0.29 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 20, 2019, 5 p.m. 12.6 ppb (12) 1.4 ppb (1) 13.4 ppb (12) 11.0 ppb (10) 12.0 ppb (11) 0.0 ppb (0) 28.0 ppb (22) 0.27 ppb (3) N/A 3.0 μg/m3 (12) 22.0
 
Jan. 20, 2019, 4 p.m. 15.1 ppb (14) 1.8 ppb (2) 15.5 ppb (14) 13.0 ppb (12) 13.8 ppb (13) 0.0 ppb (0) 26.0 ppb (20) 0.29 ppb (3) N/A 1.0 μg/m3 (4) 20.0
 
Jan. 20, 2019, 3 p.m. 14.3 ppb (13) 2.3 ppb (2) 14.4 ppb (13) 12.0 ppb (11) 12.3 ppb (11) 0.0 ppb (0) 28.0 ppb (22) 0.25 ppb (3) N/A 1.0 μg/m3 (4) 22.0
 
Jan. 20, 2019, 2 p.m. 13.0 ppb (12) 1.8 ppb (2) 11.4 ppb (11) 11.0 ppb (10) 9.9 ppb (9) 0.0 ppb (0) 33.0 ppb (25) 0.23 ppb (3) N/A 3.0 μg/m3 (12) 25.0
 
Jan. 20, 2019, 1 p.m. 9.1 ppb (8) 1.7 ppb (2) 7.6 ppb (7) 7.0 ppb (6) 6.4 ppb (6) 0.0 ppb (0) 38.0 ppb (29) 0.18 ppb (2) N/A 3.0 μg/m3 (12) 29.0
 
Jan. 20, 2019, noon 7.7 ppb (7) 1.1 ppb (1) 7.1 ppb (7) 7.0 ppb (6) 6.2 ppb (6) 0.0 ppb (0) 38.0 ppb (29) 0.17 ppb (2) N/A 3.0 μg/m3 (12) 29.0
 
Jan. 20, 2019, 11 a.m. 6.2 ppb (6) 0.7 ppb (1) 5.6 ppb (5) 6.0 ppb (6) 4.9 ppb (5) 0.0 ppb (0) 38.0 ppb (29) 0.17 ppb (2) N/A 3.0 μg/m3 (12) 29.0
 
Jan. 20, 2019, 10 a.m. 4.1 ppb (4) 0.7 ppb (1) 3.0 ppb (3) 4.0 ppb (4) 2.5 ppb (2) 0.0 ppb (0) 40.0 ppb (31) 0.16 ppb (2) N/A 5.0 μg/m3 (21) 31.0
 
Jan. 20, 2019, 9 a.m. 2.5 ppb (2) 0.2 ppb (0) 1.5 ppb (1) 2.0 ppb (2) 1.2 ppb (1) 0.0 ppb (0) 42.0 ppb (32) 0.15 ppb (2) N/A 4.0 μg/m3 (17) 32.0
 
Jan. 20, 2019, 8 a.m. 2.0 ppb (2) 0.2 ppb (0) 1.1 ppb (1) 2.0 ppb (2) 0.9 ppb (1) 0.0 ppb (0) 42.0 ppb (32) 0.15 ppb (2) N/A 1.0 μg/m3 (4) 32.0
 
Jan. 20, 2019, 7 a.m. 2.1 ppb (2) 0.1 ppb (0) 1.4 ppb (1) 2.0 ppb (2) 1.3 ppb (1) 0.0 ppb (0) 41.0 ppb (32) 0.15 ppb (2) N/A 2.0 μg/m3 (8) 32.0
 
Jan. 20, 2019, 6 a.m. 2.6 ppb (2) 0.1 ppb (0) 1.8 ppb (2) 3.0 ppb (3) 1.6 ppb (1) 0.0 ppb (0) 41.0 ppb (32) 0.15 ppb (2) N/A 3.0 μg/m3 (12) 32.0
 
Jan. 20, 2019, 5 a.m. 2.6 ppb (2) 0.1 ppb (0) 1.3 ppb (1) 3.0 ppb (3) 1.1 ppb (1) 0.0 ppb (0) 41.0 ppb (32) 0.15 ppb (2) N/A 5.0 μg/m3 (21) 32.0
 
Jan. 20, 2019, 3 a.m. 3.5 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 41.0 ppb (32) 0.17 ppb (2) N/A 7.0 μg/m3 (29) 32.0
 
Jan. 20, 2019, 2 a.m. 3.1 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 40.0 ppb (31) 0.18 ppb (2) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 20, 2019, 1 a.m. 4.2 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 38.0 ppb (29) 0.19 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 20, 2019, midnight 5.5 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 36.0 ppb (28) 0.21 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 19, 2019, 11 p.m. 10.3 ppb (10) 1.1 ppb (1) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 31.0 ppb (24) 0.23 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 19, 2019, 10 p.m. 8.5 ppb (8) 0.7 ppb (1) 8.3 ppb (8) 8.0 ppb (7) 7.5 ppb (7) 0.0 ppb (0) 34.0 ppb (26) 0.22 ppb (2) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 19, 2019, 9 p.m. 6.3 ppb (6) 0.8 ppb (1) 5.9 ppb (5) 6.0 ppb (6) 5.2 ppb (5) 0.0 ppb (0) 37.0 ppb (28) 0.19 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 19, 2019, 8 p.m. 5.3 ppb (5) 0.7 ppb (1) 4.1 ppb (4) 5.0 ppb (5) 3.6 ppb (3) 0.0 ppb (0) 39.0 ppb (30) 0.18 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 19, 2019, 7 p.m. 3.9 ppb (4) 0.4 ppb (0) 3.1 ppb (3) 4.0 ppb (4) 2.8 ppb (3) 0.0 ppb (0) 40.0 ppb (31) 0.18 ppb (2) N/A 7.0 μg/m3 (29) 31.0
 
Jan. 19, 2019, 6 p.m. 4.2 ppb (4) 0.4 ppb (0) 3.6 ppb (3) 4.0 ppb (4) 3.1 ppb (3) 0.0 ppb (0) 39.0 ppb (30) 0.21 ppb (2) N/A 6.0 μg/m3 (25) 30.0
 
Jan. 19, 2019, 5 p.m. 5.9 ppb (5) 1.3 ppb (1) 5.3 ppb (5) 5.0 ppb (5) 3.9 ppb (4) 0.0 ppb (0) 38.0 ppb (29) 0.19 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 19, 2019, 4 p.m. 7.2 ppb (7) 2.0 ppb (2) 6.8 ppb (6) 5.0 ppb (5) 4.7 ppb (4) 0.0 ppb (0) 37.0 ppb (28) 0.19 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 19, 2019, 3 p.m. 12.3 ppb (11) 4.0 ppb (4) 12.8 ppb (12) 8.0 ppb (7) 8.8 ppb (8) 0.0 ppb (0) 31.0 ppb (24) 0.21 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 19, 2019, 2 p.m. 16.4 ppb (15) 5.3 ppb (5) 16.9 ppb (16) 11.0 ppb (10) 11.7 ppb (11) 0.0 ppb (0) 26.0 ppb (20) 0.24 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 19, 2019, 1 p.m. 51.6 ppb (48) 27.5 ppb (25) 53.6 ppb (50) 24.0 ppb (22) 26.0 ppb (24) 1.0 ppb (1) 10.0 ppb (8) 0.53 ppb (6) N/A 14.0 μg/m3 (54) 54.0
 
Jan. 19, 2019, noon 80.3 ppb (78) 51.1 ppb (47) 78.3 ppb (76) 29.0 ppb (27) 34.3 ppb (32) 1.0 ppb (1) 3.0 ppb (2) 0.73 ppb (8) N/A 12.0 μg/m3 (50) 78.0
 
Jan. 19, 2019, 11 a.m. 59.4 ppb (56) 32.7 ppb (30) 61.2 ppb (58) 27.0 ppb (25) 32.4 ppb (30) 1.0 ppb (1) 3.0 ppb (2) 0.63 ppb (7) N/A 10.0 μg/m3 (42) 58.0
 
Jan. 19, 2019, 10 a.m. 49.2 ppb (46) 22.0 ppb (20) 57.5 ppb (54) 27.0 ppb (25) 32.4 ppb (30) 0.0 ppb (0) 3.0 ppb (2) 0.47 ppb (5) N/A 5.0 μg/m3 (21) 54.0
 
Jan. 19, 2019, 9 a.m. 33.3 ppb (31) 5.9 ppb (5) 33.7 ppb (31) 27.0 ppb (25) 29.7 ppb (28) 0.0 ppb (0) 5.0 ppb (4) 0.33 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 19, 2019, 8 a.m. 18.7 ppb (17) 0.3 ppb (0) 19.8 ppb (18) 18.0 ppb (17) 19.4 ppb (18) 0.0 ppb (0) 17.0 ppb (13) 0.28 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2019, 7 a.m. 12.2 ppb (11) 0.1 ppb (0) 12.6 ppb (12) 12.0 ppb (11) 12.5 ppb (12) 0.0 ppb (0) 25.0 ppb (19) 0.26 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2019, 6 a.m. 9.3 ppb (9) 0.1 ppb (0) 9.4 ppb (9) 9.0 ppb (8) 9.3 ppb (9) 0.0 ppb (0) 27.0 ppb (21) 0.21 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 19, 2019, 5 a.m. 9.8 ppb (9) 0.1 ppb (0) 8.5 ppb (8) 10.0 ppb (9) 8.4 ppb (8) 0.0 ppb (0) 24.0 ppb (18) 0.23 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 19, 2019, 4 a.m. 11.8 ppb (11) 0.1 ppb (0) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 22.0 ppb (17) 0.28 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 19, 2019, 3 a.m. 12.9 ppb (12) 0.1 ppb (0) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 23.0 ppb (18) 0.28 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 19, 2019, 2 a.m. 12.7 ppb (12) 0.1 ppb (0) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 26.0 ppb (20) 0.27 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 19, 2019, 1 a.m. 12.7 ppb (12) 0.1 ppb (0) 13.0 ppb (12) 13.0 ppb (12) 12.9 ppb (12) 1.0 ppb (1) 28.0 ppb (22) 0.28 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 19, 2019, midnight 18.3 ppb (17) 0.1 ppb (0) 17.8 ppb (16) 18.0 ppb (17) 17.7 ppb (16) 0.0 ppb (0) 23.0 ppb (18) 0.3 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 18, 2019, 11 p.m. 22.1 ppb (20) 0.3 ppb (0) 22.2 ppb (21) 22.0 ppb (20) 21.3 ppb (20) 0.0 ppb (0) 21.0 ppb (16) 0.32 ppb (4) N/A 14.0 μg/m3 (54) 54.0
 
Jan. 18, 2019, 10 p.m. 15.5 ppb (14) 0.6 ppb (1) 15.0 ppb (14) 15.0 ppb (14) 14.3 ppb (13) 0.0 ppb (0) 30.0 ppb (23) 0.24 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 18, 2019, 9 p.m. 12.8 ppb (12) 0.4 ppb (0) N/A 12.0 ppb (11) 11.6 ppb (11) 0.0 ppb (0) 32.0 ppb (25) 0.23 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 18, 2019, 8 p.m. 10.0 ppb (9) 0.9 ppb (1) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 37.0 ppb (28) 0.21 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 18, 2019, 7 p.m. 8.5 ppb (8) 1.9 ppb (2) 7.2 ppb (7) 7.0 ppb (6) 5.8 ppb (5) 0.0 ppb (0) 40.0 ppb (31) 0.2 ppb (2) N/A 4.0 μg/m3 (17) 31.0
 
Jan. 18, 2019, 6 p.m. 11.1 ppb (10) 3.0 ppb (3) 10.1 ppb (9) 8.0 ppb (7) 7.3 ppb (7) 0.0 ppb (0) 38.0 ppb (29) 0.19 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 18, 2019, 5 p.m. 10.2 ppb (9) 2.2 ppb (2) 9.7 ppb (9) 8.0 ppb (7) 7.4 ppb (7) 0.0 ppb (0) 37.0 ppb (28) 0.2 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 18, 2019, 4 p.m. 8.2 ppb (8) 1.8 ppb (2) 7.3 ppb (7) 6.0 ppb (6) 5.6 ppb (5) 0.0 ppb (0) 38.0 ppb (29) 0.19 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 18, 2019, 3 p.m. 18.6 ppb (17) 4.7 ppb (4) 19.1 ppb (18) 14.0 ppb (13) 14.5 ppb (13) 0.0 ppb (0) 28.0 ppb (22) 0.26 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 18, 2019, 2 p.m. 19.4 ppb (18) 3.9 ppb (4) 20.0 ppb (19) 16.0 ppb (15) 16.3 ppb (15) 0.0 ppb (0) 26.0 ppb (20) 0.26 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 18, 2019, 1 p.m. 25.6 ppb (24) 4.7 ppb (4) 26.4 ppb (24) 21.0 ppb (19) 22.1 ppb (20) 0.0 ppb (0) 21.0 ppb (16) 0.34 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 18, 2019, noon 28.4 ppb (26) 2.3 ppb (2) 30.1 ppb (28) 26.0 ppb (24) 27.7 ppb (26) 0.0 ppb (0) 14.0 ppb (11) 0.37 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 18, 2019, 11 a.m. 22.2 ppb (21) 0.7 ppb (1) 23.0 ppb (21) 22.0 ppb (20) 22.2 ppb (21) 0.0 ppb (0) 17.0 ppb (13) 0.31 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 18, 2019, 10 a.m. 14.8 ppb (14) 0.2 ppb (0) 15.5 ppb (14) 15.0 ppb (14) 15.3 ppb (14) 0.0 ppb (0) 24.0 ppb (18) 0.23 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 18, 2019, 9 a.m. 13.3 ppb (12) 0.1 ppb (0) 14.3 ppb (13) 13.0 ppb (12) 14.2 ppb (13) 0.0 ppb (0) 26.0 ppb (20) 0.21 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 18, 2019, 8 a.m. 11.7 ppb (11) 0.1 ppb (0) 12.8 ppb (12) 12.0 ppb (11) 12.7 ppb (12) 0.0 ppb (0) 31.0 ppb (24) 0.21 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 18, 2019, 7 a.m. N/A N/A 5.5 ppb (5) N/A 5.4 ppb (5) N/A 39.0 ppb (30) N/A N/A 7.0 μg/m3 (29) 30.0
 
Jan. 18, 2019, 6 a.m. N/A N/A 7.2 ppb (7) N/A 6.6 ppb (6) N/A 36.0 ppb (28) N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 18, 2019, 5 a.m. N/A N/A 8.3 ppb (8) N/A 8.0 ppb (7) N/A 34.0 ppb (26) N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 18, 2019, 4 a.m. 11.5 ppb (11) 0.4 ppb (0) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 29.0 ppb (22) 0.22 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 18, 2019, 3 a.m. 11.4 ppb (11) 0.3 ppb (0) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 29.0 ppb (22) 0.23 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 18, 2019, 2 a.m. 12.3 ppb (11) 0.6 ppb (1) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 28.0 ppb (22) 0.25 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 18, 2019, 1 a.m. 15.5 ppb (14) 1.0 ppb (1) 15.6 ppb (14) 15.0 ppb (14) 14.6 ppb (14) 0.0 ppb (0) 27.0 ppb (21) 0.26 ppb (3) N/A 14.0 μg/m3 (54) 54.0
 
Jan. 18, 2019, midnight 17.4 ppb (16) 1.3 ppb (1) 16.8 ppb (16) 16.0 ppb (15) 15.7 ppb (15) 0.0 ppb (0) 26.0 ppb (20) 0.25 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 17, 2019, 11 p.m. 23.4 ppb (22) 1.2 ppb (1) 23.5 ppb (22) 22.0 ppb (20) 21.7 ppb (20) 0.0 ppb (0) 21.0 ppb (16) 0.3 ppb (3) N/A 15.0 μg/m3 (56) 56.0
 
Jan. 17, 2019, 10 p.m. 19.8 ppb (18) 0.9 ppb (1) 20.9 ppb (19) 19.0 ppb (18) 18.8 ppb (17) 0.0 ppb (0) 25.0 ppb (19) 0.26 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 17, 2019, 9 p.m. 13.2 ppb (12) 1.1 ppb (1) 13.4 ppb (12) 12.0 ppb (11) 11.9 ppb (11) 0.0 ppb (0) 33.0 ppb (25) 0.21 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 17, 2019, 8 p.m. 10.2 ppb (9) 1.4 ppb (1) 9.8 ppb (9) 9.0 ppb (8) 8.5 ppb (8) 0.0 ppb (0) 37.0 ppb (28) 0.2 ppb (2) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 17, 2019, 7 p.m. 10.1 ppb (9) 2.3 ppb (2) 10.2 ppb (9) 8.0 ppb (7) 8.0 ppb (7) 0.0 ppb (0) 38.0 ppb (29) 0.19 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 17, 2019, 6 p.m. 9.2 ppb (9) 2.3 ppb (2) 8.9 ppb (8) 7.0 ppb (6) 6.7 ppb (6) 0.0 ppb (0) 39.0 ppb (30) 0.18 ppb (2) N/A 5.0 μg/m3 (21) 30.0
 
Jan. 17, 2019, 5 p.m. 9.2 ppb (9) 2.8 ppb (3) 9.0 ppb (8) 6.0 ppb (6) 6.4 ppb (6) 0.0 ppb (0) 39.0 ppb (30) 0.18 ppb (2) N/A 4.0 μg/m3 (17) 30.0
 
Jan. 17, 2019, 4 p.m. 7.9 ppb (7) 2.4 ppb (2) 7.8 ppb (7) 6.0 ppb (6) 5.6 ppb (5) 0.0 ppb (0) 39.0 ppb (30) 0.18 ppb (2) N/A 5.0 μg/m3 (21) 30.0
 
Jan. 17, 2019, 3 p.m. 6.3 ppb (6) 1.8 ppb (2) 6.7 ppb (6) 5.0 ppb (5) 5.0 ppb (5) 0.0 ppb (0) 39.0 ppb (30) 0.17 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 17, 2019, 2 p.m. 7.5 ppb (7) 2.5 ppb (2) 7.4 ppb (7) 5.0 ppb (5) 5.4 ppb (5) 0.0 ppb (0) 39.0 ppb (30) 0.16 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 17, 2019, 1 p.m. 6.5 ppb (6) 1.2 ppb (1) 6.6 ppb (6) 5.0 ppb (5) 5.5 ppb (5) 0.0 ppb (0) 38.0 ppb (29) 0.17 ppb (2) N/A 4.0 μg/m3 (17) 29.0
 
Jan. 17, 2019, noon 6.7 ppb (6) 0.5 ppb (0) 6.9 ppb (6) 6.0 ppb (6) 6.4 ppb (6) 0.0 ppb (0) 37.0 ppb (28) 0.18 ppb (2) N/A 5.0 μg/m3 (21) 28.0
 
Jan. 17, 2019, 11 a.m. 9.6 ppb (9) 0.4 ppb (0) 9.7 ppb (9) 9.0 ppb (8) 9.3 ppb (9) 0.0 ppb (0) 34.0 ppb (26) 0.18 ppb (2) N/A 4.0 μg/m3 (17) 26.0
 
Jan. 17, 2019, 10 a.m. 5.8 ppb (5) 0.2 ppb (0) 5.8 ppb (5) 6.0 ppb (6) 5.7 ppb (5) 0.0 ppb (0) 38.0 ppb (29) 0.16 ppb (2) N/A 4.0 μg/m3 (17) 29.0
 
Jan. 17, 2019, 9 a.m. 3.5 ppb (3) 0.2 ppb (0) 3.3 ppb (3) 3.0 ppb (3) 3.1 ppb (3) 0.0 ppb (0) 40.0 ppb (31) 0.14 ppb (2) N/A 6.0 μg/m3 (25) 31.0
 
Jan. 17, 2019, 8 a.m. 3.6 ppb (3) 0.1 ppb (0) 3.0 ppb (3) 4.0 ppb (4) 2.9 ppb (3) 0.0 ppb (0) N/A 0.14 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
Jan. 17, 2019, 7 a.m. 4.1 ppb (4) 0.1 ppb (0) 3.3 ppb (3) 4.0 ppb (4) 3.2 ppb (3) 0.0 ppb (0) N/A 0.14 ppb (2) N/A -2.0 μg/m3 (0) 4.0
 
Jan. 17, 2019, 6 a.m. 4.7 ppb (4) 0.1 ppb (0) 3.9 ppb (4) 5.0 ppb (5) 3.9 ppb (4) 0.0 ppb (0) 38.0 ppb (29) 0.14 ppb (2) N/A -1.0 μg/m3 (0) 29.0
 
Jan. 17, 2019, 5 a.m. 4.1 ppb (4) 0.1 ppb (0) 3.2 ppb (3) 4.0 ppb (4) 3.2 ppb (3) 0.0 ppb (0) 39.0 ppb (30) 0.13 ppb (1) N/A 1.0 μg/m3 (4) 30.0
 
Jan. 16, 2019, 10 p.m. 24.3 ppb (23) 1.8 ppb (2) 24.6 ppb (23) 23.0 ppb (21) 22.9 ppb (21) 1.0 ppb (1) 14.0 ppb (11) 0.34 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 16, 2019, 9 p.m. 11.0 ppb (10) 0.4 ppb (0) 10.4 ppb (10) 11.0 ppb (10) 10.0 ppb (9) 1.0 ppb (1) 27.0 ppb (21) 0.23 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2019, 8 p.m. 8.0 ppb (7) 0.6 ppb (1) 7.1 ppb (7) 8.0 ppb (7) 6.6 ppb (6) 0.0 ppb (0) 31.0 ppb (24) 0.2 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 16, 2019, 7 p.m. 7.0 ppb (6) 0.7 ppb (1) 6.1 ppb (6) 6.0 ppb (6) 5.5 ppb (5) 0.0 ppb (0) 33.0 ppb (25) 0.19 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 16, 2019, 6 p.m. 7.0 ppb (6) 1.0 ppb (1) 6.2 ppb (6) 6.0 ppb (6) 5.2 ppb (5) 0.0 ppb (0) 34.0 ppb (26) 0.19 ppb (2) N/A N/A 26.0
 
Jan. 16, 2019, 5 p.m. 11.4 ppb (11) 3.0 ppb (3) 10.8 ppb (10) 8.0 ppb (7) 8.0 ppb (7) 1.0 ppb (1) 32.0 ppb (25) 0.22 ppb (2) N/A 17.0 μg/m3 (61) 61.0
 
Jan. 16, 2019, 4 p.m. 14.9 ppb (14) 3.1 ppb (3) 14.6 ppb (14) 12.0 ppb (11) 11.6 ppb (11) 1.0 ppb (1) 28.0 ppb (22) 0.24 ppb (3) N/A 17.0 μg/m3 (61) 61.0
 
Jan. 16, 2019, 3 p.m. 15.1 ppb (14) 3.1 ppb (3) 15.0 ppb (14) 12.0 ppb (11) 12.0 ppb (11) 1.0 ppb (1) 30.0 ppb (23) 0.24 ppb (3) N/A 20.0 μg/m3 (67) 67.0
 
Jan. 16, 2019, 2 p.m. 30.4 ppb (28) 12.0 ppb (11) 32.4 ppb (30) 18.0 ppb (17) 21.1 ppb (20) 1.0 ppb (1) 19.0 ppb (15) 0.33 ppb (4) N/A 22.0 μg/m3 (71) 71.0
 
Jan. 16, 2019, 1 p.m. 59.6 ppb (56) 32.0 ppb (30) 59.6 ppb (56) 28.0 ppb (26) 32.4 ppb (30) 1.0 ppb (1) 9.0 ppb (7) 0.51 ppb (6) N/A 19.0 μg/m3 (65) 65.0
 
Jan. 16, 2019, noon 91.9 ppb (90) 66.1 ppb (63) 101.2 ppb (100) 26.0 ppb (24) 35.6 ppb (33) 1.0 ppb (1) 3.0 ppb (2) 1.12 ppb (12) N/A 17.0 μg/m3 (61) 100.0
 
Jan. 16, 2019, 11 a.m. 75.6 ppb (73) 47.5 ppb (44) 77.3 ppb (75) 28.0 ppb (26) 36.1 ppb (33) 0.0 ppb (0) 3.0 ppb (2) 0.78 ppb (9) N/A 16.0 μg/m3 (59) 75.0
 
Jan. 16, 2019, 10 a.m. 72.1 ppb (69) 43.3 ppb (40) 80.0 ppb (78) 29.0 ppb (27) 37.1 ppb (34) 1.0 ppb (1) 3.0 ppb (2) 0.57 ppb (6) N/A 16.0 μg/m3 (59) 78.0
 
Jan. 16, 2019, 9 a.m. 66.4 ppb (63) 42.2 ppb (39) 94.3 ppb (93) 24.0 ppb (22) 36.2 ppb (34) 0.0 ppb (0) 3.0 ppb (2) 0.68 ppb (8) N/A 17.0 μg/m3 (61) 93.0
 
Jan. 16, 2019, 8 a.m. 63.2 ppb (60) 38.4 ppb (36) 96.1 ppb (95) 25.0 ppb (23) 34.0 ppb (31) 0.0 ppb (0) 3.0 ppb (2) 0.66 ppb (7) N/A 22.0 μg/m3 (71) 95.0
 
Jan. 16, 2019, 7 a.m. 66.3 ppb (63) 38.7 ppb (36) 86.2 ppb (84) 28.0 ppb (26) 35.6 ppb (33) 1.0 ppb (1) 4.0 ppb (3) 0.71 ppb (8) N/A 21.0 μg/m3 (69) 84.0
 
Jan. 16, 2019, 6 a.m. 56.6 ppb (53) 30.8 ppb (29) 76.6 ppb (74) 26.0 ppb (24) 35.4 ppb (33) 0.0 ppb (0) 4.0 ppb (3) 0.65 ppb (7) N/A 21.0 μg/m3 (69) 74.0
 
Jan. 16, 2019, 5 a.m. 59.3 ppb (56) 32.0 ppb (30) 76.9 ppb (74) 27.0 ppb (25) 34.3 ppb (32) 0.0 ppb (0) 4.0 ppb (3) 0.65 ppb (7) N/A 28.0 μg/m3 (84) 84.0
 
Jan. 16, 2019, 3 a.m. 43.0 ppb (40) 12.2 ppb (11) 68.9 ppb (66) 31.0 ppb (29) 39.3 ppb (36) 0.0 ppb (0) 3.0 ppb (2) 0.46 ppb (5) N/A 13.0 μg/m3 (52) 66.0
 
Jan. 16, 2019, 2 a.m. 25.6 ppb (24) 0.4 ppb (0) 32.6 ppb (30) 25.0 ppb (23) 28.4 ppb (26) 0.0 ppb (0) 12.0 ppb (9) 0.34 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 16, 2019, 1 a.m. 22.4 ppb (21) 0.4 ppb (0) 24.0 ppb (22) 22.0 ppb (20) 23.8 ppb (22) 0.0 ppb (0) 19.0 ppb (15) 0.32 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 16, 2019, midnight 19.4 ppb (18) 0.1 ppb (0) 20.6 ppb (19) 19.0 ppb (18) 20.5 ppb (19) 0.0 ppb (0) 23.0 ppb (18) 0.3 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 15, 2019, 11 p.m. 19.5 ppb (18) 0.3 ppb (0) 18.6 ppb (17) 19.0 ppb (18) 18.5 ppb (17) 0.0 ppb (0) 25.0 ppb (19) 0.31 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 15, 2019, 10 p.m. 9.5 ppb (9) 0.1 ppb (0) 9.8 ppb (9) 9.0 ppb (8) 9.8 ppb (9) 0.0 ppb (0) 34.0 ppb (26) 0.21 ppb (2) N/A 2.0 μg/m3 (8) 26.0
 
Jan. 15, 2019, 9 p.m. 6.8 ppb (6) 0.2 ppb (0) 7.5 ppb (7) 7.0 ppb (6) 7.3 ppb (7) 0.0 ppb (0) 39.0 ppb (30) 0.18 ppb (2) N/A 3.0 μg/m3 (12) 30.0
 
Jan. 15, 2019, 8 p.m. 5.0 ppb (5) 0.4 ppb (0) 6.0 ppb (6) 5.0 ppb (5) 5.6 ppb (5) 0.0 ppb (0) 41.0 ppb (32) 0.17 ppb (2) N/A 3.0 μg/m3 (12) 32.0
 
Jan. 15, 2019, 7 p.m. 5.8 ppb (5) 0.9 ppb (1) 6.8 ppb (6) 5.0 ppb (5) 5.9 ppb (5) 0.0 ppb (0) 41.0 ppb (32) 0.17 ppb (2) N/A 3.0 μg/m3 (12) 32.0
 
Jan. 15, 2019, 6 p.m. 5.0 ppb (5) 1.0 ppb (1) 6.2 ppb (6) 4.0 ppb (4) 5.2 ppb (5) 0.0 ppb (0) 41.0 ppb (32) 0.16 ppb (2) N/A 4.0 μg/m3 (17) 32.0
 
Jan. 15, 2019, 5 p.m. 5.5 ppb (5) 1.4 ppb (1) 6.5 ppb (6) 4.0 ppb (4) 5.1 ppb (5) 0.0 ppb (0) 40.0 ppb (31) 0.17 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 15, 2019, 4 p.m. 7.7 ppb (7) 2.3 ppb (2) 7.7 ppb (7) 5.0 ppb (5) 5.6 ppb (5) 0.0 ppb (0) 38.0 ppb (29) 0.18 ppb (2) N/A 14.0 μg/m3 (54) 54.0
 
Jan. 15, 2019, 3 p.m. 10.6 ppb (10) 3.2 ppb (3) 10.4 ppb (10) 7.0 ppb (6) 7.4 ppb (7) 0.0 ppb (0) 35.0 ppb (27) 0.21 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 15, 2019, 2 p.m. 14.8 ppb (14) 4.5 ppb (4) 14.9 ppb (14) 10.0 ppb (9) 10.7 ppb (10) 0.0 ppb (0) 31.0 ppb (24) 0.27 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 15, 2019, 1 p.m. 21.2 ppb (20) 5.1 ppb (5) 22.1 ppb (20) 16.0 ppb (15) 17.2 ppb (16) 0.0 ppb (0) 25.0 ppb (19) 0.33 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 15, 2019, noon 82.8 ppb (81) 47.7 ppb (44) 59.7 ppb (56) 35.0 ppb (32) 35.9 ppb (33) 1.0 ppb (1) 6.0 ppb (5) 0.8 ppb (9) N/A 15.0 μg/m3 (56) 81.0
 
Jan. 15, 2019, 11 a.m. 86.2 ppb (84) 53.5 ppb (50) 65.4 ppb (62) 33.0 ppb (31) 38.6 ppb (36) 1.0 ppb (1) 3.0 ppb (2) 0.89 ppb (10) N/A 11.0 μg/m3 (46) 84.0
 
Jan. 15, 2019, 10 a.m. 76.6 ppb (74) 45.2 ppb (42) 43.6 ppb (40) 31.0 ppb (29) 34.5 ppb (32) 1.0 ppb (1) 3.0 ppb (2) 0.69 ppb (8) N/A 13.0 μg/m3 (52) 74.0
 
Jan. 15, 2019, 9 a.m. 70.0 ppb (67) 39.2 ppb (36) 48.3 ppb (45) 31.0 ppb (29) 32.3 ppb (30) 0.0 ppb (0) 4.0 ppb (3) 0.65 ppb (7) N/A 12.0 μg/m3 (50) 67.0
 
Jan. 15, 2019, 8 a.m. 109.4 ppb (102) 80.2 ppb (78) 78.7 ppb (76) 29.0 ppb (27) 35.2 ppb (33) 1.0 ppb (1) 3.0 ppb (2) 0.91 ppb (10) N/A 17.0 μg/m3 (61) 102.0
 
Jan. 15, 2019, 7 a.m. 113.4 ppb (102) 85.0 ppb (83) 104.0 ppb (101) 28.0 ppb (26) 35.7 ppb (33) 1.0 ppb (1) N/A 0.98 ppb (11) N/A 24.0 μg/m3 (76) 102.0
 
Jan. 15, 2019, 6 a.m. 113.6 ppb (102) 85.0 ppb (83) 94.3 ppb (93) 29.0 ppb (27) 34.7 ppb (32) 1.0 ppb (1) 3.0 ppb (2) 0.95 ppb (11) N/A 23.0 μg/m3 (73) 102.0
 
Jan. 15, 2019, 5 a.m. 111.8 ppb (102) 83.0 ppb (81) 115.8 ppb (103) 29.0 ppb (27) 34.9 ppb (32) 1.0 ppb (1) 4.0 ppb (3) 0.96 ppb (11) N/A 30.0 μg/m3 (88) 103.0
 
Jan. 15, 2019, 3 a.m. 70.4 ppb (67) 41.4 ppb (38) 75.3 ppb (73) 29.0 ppb (27) 34.7 ppb (32) 0.0 ppb (0) 4.0 ppb (3) 0.72 ppb (8) N/A 22.0 μg/m3 (71) 73.0
 
Jan. 15, 2019, 2 a.m. 61.6 ppb (58) 30.1 ppb (28) N/A 31.0 ppb (29) N/A 0.0 ppb (0) 3.0 ppb (2) 0.61 ppb (7) N/A 18.0 μg/m3 (63) 63.0
 
Jan. 15, 2019, 1 a.m. 62.1 ppb (59) 28.7 ppb (27) 61.7 ppb (58) 33.0 ppb (31) 39.6 ppb (37) 0.0 ppb (0) 3.0 ppb (2) 0.5 ppb (6) N/A 20.0 μg/m3 (67) 67.0
 
Jan. 15, 2019, midnight 46.9 ppb (43) 13.9 ppb (13) 52.1 ppb (48) 33.0 ppb (31) 35.7 ppb (33) 0.0 ppb (0) 6.0 ppb (5) 0.36 ppb (4) N/A 13.0 μg/m3 (52) 52.0
 
Jan. 14, 2019, 11 p.m. 27.2 ppb (25) 0.5 ppb (0) 28.6 ppb (26) 27.0 ppb (25) 27.3 ppb (25) 0.0 ppb (0) 12.0 ppb (9) 0.39 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 14, 2019, 10 p.m. 23.5 ppb (22) 0.6 ppb (1) 24.2 ppb (22) 23.0 ppb (21) 22.1 ppb (20) 0.0 ppb (0) 18.0 ppb (14) 0.32 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 14, 2019, 9 p.m. 14.5 ppb (13) 0.8 ppb (1) 14.2 ppb (13) 14.0 ppb (13) 13.4 ppb (12) 0.0 ppb (0) 29.0 ppb (22) 0.23 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 14, 2019, 8 p.m. 9.1 ppb (8) 1.4 ppb (1) 8.8 ppb (8) 8.0 ppb (7) 7.5 ppb (7) 0.0 ppb (0) 37.0 ppb (28) 0.2 ppb (2) N/A 5.0 μg/m3 (21) 28.0
 
Jan. 14, 2019, 7 p.m. 12.4 ppb (11) 2.8 ppb (3) 11.4 ppb (11) 10.0 ppb (9) 9.3 ppb (9) 0.0 ppb (0) 33.0 ppb (25) 0.19 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 14, 2019, 6 p.m. 13.7 ppb (13) 2.3 ppb (2) 14.1 ppb (13) 11.0 ppb (10) 12.0 ppb (11) 0.0 ppb (0) 30.0 ppb (23) 0.21 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 14, 2019, 5 p.m. 18.4 ppb (17) 5.4 ppb (5) 16.7 ppb (15) 13.0 ppb (12) 12.4 ppb (11) 0.0 ppb (0) 29.0 ppb (22) 0.22 ppb (2) N/A 10.0 μg/m3 (42) 42.0