AQSQID: 371830014

Site Name: Millbrook Ncore

Location: Raleigh, NC

Reporting: True, Located: True

Current AQI: 29.0

Raleigh NC, US: 35.856098, -78.574203

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 17, 2019, 11 a.m. 13.7 ppb (13) 1.6 ppb (1) 14.9 ppb (14) 12.0 ppb (11) N/A 0.0 ppb (0) 9.0 ppb (7) 0.23 ppb (3) 8.0 μg/m3 (7) 7.0 μg/m3 (29) 29.0
 
Jan. 17, 2019, 10 a.m. 7.9 ppb (7) 0.7 ppb (1) 8.8 ppb (8) 7.0 ppb (6) N/A 0.0 ppb (0) 15.0 ppb (12) 0.19 ppb (2) 7.0 μg/m3 (6) 8.0 μg/m3 (33) 33.0
 
Jan. 17, 2019, 9 a.m. 4.9 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 20.0 ppb (15) 0.18 ppb (2) 8.0 μg/m3 (7) 9.0 μg/m3 (38) 38.0
 
Jan. 17, 2019, 8 a.m. 3.8 ppb (4) 0.4 ppb (0) 4.2 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.16 ppb (2) 7.0 μg/m3 (6) 10.0 μg/m3 (42) 42.0
 
Jan. 17, 2019, 7 a.m. 3.5 ppb (3) 0.3 ppb (0) 4.0 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 24.0 ppb (18) 0.16 ppb (2) 8.0 μg/m3 (7) 9.0 μg/m3 (38) 38.0
 
Jan. 17, 2019, 6 a.m. N/A N/A 3.7 ppb (3) N/A N/A N/A 26.0 ppb (20) 0.17 ppb (2) 9.0 μg/m3 (8) 7.0 μg/m3 (29) 29.0
 
Jan. 17, 2019, 5 a.m. 3.1 ppb (3) 0.3 ppb (0) 3.3 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 8.0 μg/m3 (7) 9.0 μg/m3 (38) 38.0
 
Jan. 17, 2019, 4 a.m. 3.3 ppb (3) 0.3 ppb (0) 3.7 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (21) 0.17 ppb (2) 9.0 μg/m3 (8) 10.0 μg/m3 (42) 42.0
 
Jan. 17, 2019, 3 a.m. 3.5 ppb (3) 0.3 ppb (0) 4.0 ppb (4) 3.0 ppb (3) N/A 1.0 ppb (1) 28.0 ppb (22) 0.17 ppb (2) 11.0 μg/m3 (10) 8.0 μg/m3 (33) 33.0
 
Jan. 17, 2019, 2 a.m. 6.5 ppb (6) 0.5 ppb (0) 6.5 ppb (6) 6.0 ppb (6) N/A 1.0 ppb (1) 28.0 ppb (22) 0.2 ppb (2) 20.0 μg/m3 (18) 13.0 μg/m3 (52) 52.0
 
Jan. 17, 2019, 1 a.m. 29.7 ppb (28) 5.3 ppb (5) 19.7 ppb (18) 24.0 ppb (22) N/A 0.0 ppb (0) 12.0 ppb (9) 0.47 ppb (5) 14.0 μg/m3 (13) 12.0 μg/m3 (50) 50.0
 
Jan. 17, 2019, midnight 40.9 ppb (38) 11.0 ppb (10) 32.4 ppb (30) 30.0 ppb (28) N/A 0.0 ppb (0) 6.0 ppb (5) 0.55 ppb (6) 15.0 μg/m3 (14) 11.0 μg/m3 (46) 46.0
 
Jan. 16, 2019, 11 p.m. 17.2 ppb (16) 2.8 ppb (3) 15.1 ppb (14) 14.0 ppb (13) N/A 0.0 ppb (0) 23.0 ppb (18) 0.36 ppb (4) 14.0 μg/m3 (13) 8.0 μg/m3 (33) 33.0
 
Jan. 16, 2019, 10 p.m. 11.0 ppb (10) 1.4 ppb (1) 9.3 ppb (9) 10.0 ppb (9) N/A 0.0 ppb (0) 29.0 ppb (22) 0.24 ppb (3) 13.0 μg/m3 (12) 8.0 μg/m3 (33) 33.0
 
Jan. 16, 2019, 9 p.m. 10.9 ppb (10) 2.5 ppb (2) 10.5 ppb (10) 8.0 ppb (7) N/A 0.0 ppb (0) 31.0 ppb (24) 0.22 ppb (2) 9.0 μg/m3 (8) 7.0 μg/m3 (29) 29.0
 
Jan. 16, 2019, 8 p.m. 11.6 ppb (11) 3.2 ppb (3) 11.8 ppb (11) 8.0 ppb (7) N/A 0.0 ppb (0) 30.0 ppb (23) 0.25 ppb (3) 9.0 μg/m3 (8) 10.0 μg/m3 (42) 42.0
 
Jan. 16, 2019, 7 p.m. 6.7 ppb (6) 2.1 ppb (2) 7.1 ppb (7) 5.0 ppb (5) N/A 0.0 ppb (0) 35.0 ppb (27) 0.22 ppb (2) 6.0 μg/m3 (5) 8.0 μg/m3 (33) 33.0
 
Jan. 16, 2019, 6 p.m. 6.7 ppb (6) 2.4 ppb (2) 7.2 ppb (7) 4.0 ppb (4) N/A 1.0 ppb (1) N/A 0.22 ppb (2) 10.0 μg/m3 (9) 9.0 μg/m3 (38) 38.0
 
Jan. 16, 2019, 5 p.m. 7.6 ppb (7) 3.1 ppb (3) 8.1 ppb (8) 5.0 ppb (5) N/A 1.0 ppb (1) 31.0 ppb (24) 0.22 ppb (2) 10.0 μg/m3 (9) 11.0 μg/m3 (46) 46.0
 
Jan. 16, 2019, 4 p.m. 9.8 ppb (9) 4.1 ppb (4) 10.3 ppb (10) 6.0 ppb (6) N/A 1.0 ppb (1) 28.0 ppb (22) 0.24 ppb (3) 16.0 μg/m3 (15) 17.0 μg/m3 (61) 61.0
 
Jan. 16, 2019, 3 p.m. 19.5 ppb (18) 10.0 ppb (9) 19.3 ppb (18) 9.0 ppb (8) N/A 1.0 ppb (1) 21.0 ppb (16) 0.32 ppb (4) 30.0 μg/m3 (27) 24.0 μg/m3 (76) 76.0
 
Jan. 16, 2019, 2 p.m. 63.6 ppb (60) 43.0 ppb (40) 62.6 ppb (59) 21.0 ppb (19) N/A 1.0 ppb (1) 7.0 ppb (5) 0.75 ppb (8) 26.0 μg/m3 (24) 23.0 μg/m3 (73) 73.0
 
Jan. 16, 2019, 1 p.m. 114.1 ppb (103) 97.6 ppb (96) 107.8 ppb (101) 17.0 ppb (16) N/A 1.0 ppb (1) 3.0 ppb (2) 1.36 ppb (15) 31.0 μg/m3 (28) 21.0 μg/m3 (69) 103.0
 
Jan. 16, 2019, noon 121.3 ppb (104) 102.9 ppb (100) 118.4 ppb (103) 18.0 ppb (17) N/A 1.0 ppb (1) 2.0 ppb (2) 1.28 ppb (14) 22.0 μg/m3 (20) 21.0 μg/m3 (69) 104.0
 
Jan. 16, 2019, 11 a.m. 88.3 ppb (86) 72.0 ppb (69) 74.0 ppb (71) 16.0 ppb (15) N/A 1.0 ppb (1) 2.0 ppb (2) 1.05 ppb (12) 19.0 μg/m3 (17) 19.0 μg/m3 (65) 86.0
 
Jan. 16, 2019, 10 a.m. 79.4 ppb (77) 62.2 ppb (59) 65.0 ppb (62) 17.0 ppb (16) N/A 1.0 ppb (1) 2.0 ppb (2) 0.85 ppb (9) 25.0 μg/m3 (23) 25.0 μg/m3 (78) 78.0
 
Jan. 16, 2019, 9 a.m. 76.9 ppb (74) 60.9 ppb (57) N/A 16.0 ppb (15) N/A 1.0 ppb (1) 2.0 ppb (2) 0.89 ppb (10) 24.0 μg/m3 (22) 25.0 μg/m3 (78) 78.0
 
Jan. 16, 2019, 8 a.m. 62.6 ppb (59) 46.8 ppb (43) 68.7 ppb (66) 16.0 ppb (15) N/A 1.0 ppb (1) N/A 0.79 ppb (9) 24.0 μg/m3 (22) 23.0 μg/m3 (73) 73.0
 
Jan. 16, 2019, 7 a.m. 60.3 ppb (57) 43.5 ppb (40) 65.8 ppb (63) 17.0 ppb (16) N/A 1.0 ppb (1) 2.0 ppb (2) 0.79 ppb (9) 27.0 μg/m3 (25) 23.0 μg/m3 (73) 73.0
 
Jan. 16, 2019, 6 a.m. N/A N/A 55.9 ppb (52) N/A N/A N/A 2.0 ppb (2) 0.71 ppb (8) 24.0 μg/m3 (22) 22.0 μg/m3 (71) 71.0
 
Jan. 16, 2019, 5 a.m. 52.0 ppb (48) 34.7 ppb (32) 51.6 ppb (48) 17.0 ppb (16) N/A 0.0 ppb (0) 2.0 ppb (2) N/A 25.0 μg/m3 (23) 24.0 μg/m3 (76) 76.0
 
Jan. 16, 2019, 4 a.m. 51.3 ppb (48) 34.3 ppb (32) 44.5 ppb (41) 17.0 ppb (16) N/A 1.0 ppb (1) 2.0 ppb (2) 0.74 ppb (8) 23.0 μg/m3 (21) 24.0 μg/m3 (76) 76.0
 
Jan. 16, 2019, 3 a.m. 32.4 ppb (30) 12.7 ppb (12) 34.6 ppb (32) 20.0 ppb (19) N/A 0.0 ppb (0) 2.0 ppb (2) 0.49 ppb (5) 27.0 μg/m3 (25) 23.0 μg/m3 (73) 73.0
 
Jan. 16, 2019, 2 a.m. 33.9 ppb (31) 14.0 ppb (13) 22.8 ppb (21) 20.0 ppb (19) N/A 0.0 ppb (0) 3.0 ppb (2) 0.56 ppb (6) 22.0 μg/m3 (20) 22.0 μg/m3 (71) 71.0
 
Jan. 16, 2019, 1 a.m. 36.2 ppb (34) 15.2 ppb (14) 27.9 ppb (26) 21.0 ppb (19) N/A 0.0 ppb (0) 3.0 ppb (2) 0.6 ppb (7) 18.0 μg/m3 (16) 18.0 μg/m3 (63) 63.0
 
Jan. 16, 2019, midnight 36.5 ppb (34) 16.7 ppb (15) 28.0 ppb (26) 20.0 ppb (19) N/A 0.0 ppb (0) 5.0 ppb (4) 0.58 ppb (6) 23.0 μg/m3 (21) 21.0 μg/m3 (69) 69.0
 
Jan. 15, 2019, 11 p.m. 41.8 ppb (39) 19.6 ppb (18) 28.8 ppb (27) 22.0 ppb (20) N/A 0.0 ppb (0) 5.0 ppb (4) 0.63 ppb (7) 16.0 μg/m3 (15) 13.0 μg/m3 (52) 52.0
 
Jan. 15, 2019, 10 p.m. 20.4 ppb (19) 8.3 ppb (8) 17.8 ppb (16) 12.0 ppb (11) N/A 0.0 ppb (0) 17.0 ppb (13) 0.39 ppb (4) 12.0 μg/m3 (11) 12.0 μg/m3 (50) 50.0
 
Jan. 15, 2019, 9 p.m. 7.0 ppb (6) 1.7 ppb (2) 7.6 ppb (7) 5.0 ppb (5) N/A 0.0 ppb (0) 27.0 ppb (21) 0.25 ppb (3) 15.0 μg/m3 (14) 19.0 μg/m3 (65) 65.0
 
Jan. 15, 2019, 8 p.m. 7.5 ppb (7) 2.6 ppb (2) 8.3 ppb (8) 5.0 ppb (5) N/A 1.0 ppb (1) 26.0 ppb (20) 0.25 ppb (3) 13.0 μg/m3 (12) 16.0 μg/m3 (59) 59.0
 
Jan. 15, 2019, 7 p.m. 4.5 ppb (4) 1.6 ppb (1) 5.2 ppb (5) 3.0 ppb (3) N/A 1.0 ppb (1) 26.0 ppb (20) 0.23 ppb (3) 12.0 μg/m3 (11) 15.0 μg/m3 (56) 56.0
 
Jan. 15, 2019, 6 p.m. 4.1 ppb (4) 1.3 ppb (1) 5.0 ppb (5) 3.0 ppb (3) N/A 1.0 ppb (1) 26.0 ppb (20) 0.23 ppb (3) 13.0 μg/m3 (12) 16.0 μg/m3 (59) 59.0
 
Jan. 15, 2019, 5 p.m. 4.5 ppb (4) 1.3 ppb (1) 5.4 ppb (5) 3.0 ppb (3) N/A 1.0 ppb (1) 25.0 ppb (19) N/A 13.0 μg/m3 (12) 14.0 μg/m3 (54) 54.0
 
Jan. 15, 2019, 4 p.m. 6.9 ppb (6) 1.7 ppb (2) 7.8 ppb (7) 5.0 ppb (5) N/A 1.0 ppb (1) 24.0 ppb (18) N/A 16.0 μg/m3 (15) 17.0 μg/m3 (61) 61.0
 
Jan. 15, 2019, 3 p.m. 13.6 ppb (13) 4.9 ppb (5) 14.9 ppb (14) 9.0 ppb (8) N/A 1.0 ppb (1) 22.0 ppb (17) 0.28 ppb (3) 9.0 μg/m3 (8) 10.0 μg/m3 (42) 42.0
 
Jan. 15, 2019, 2 p.m. 15.7 ppb (15) 4.5 ppb (4) 16.7 ppb (15) 11.0 ppb (10) N/A 1.0 ppb (1) 23.0 ppb (18) 0.33 ppb (4) 9.0 μg/m3 (8) 11.0 μg/m3 (46) 46.0
 
Jan. 15, 2019, 1 p.m. 12.5 ppb (12) 1.8 ppb (2) 13.9 ppb (13) 11.0 ppb (10) N/A 0.0 ppb (0) 21.0 ppb (16) 0.28 ppb (3) 13.0 μg/m3 (12) 13.0 μg/m3 (52) 52.0
 
Jan. 15, 2019, noon 15.2 ppb (14) 2.3 ppb (2) 17.4 ppb (16) 13.0 ppb (12) N/A 0.0 ppb (0) 12.0 ppb (9) 0.43 ppb (5) 10.0 μg/m3 (9) 9.0 μg/m3 (38) 38.0
 
Jan. 15, 2019, 11 a.m. 9.3 ppb (9) 0.4 ppb (0) 10.0 ppb (9) 9.0 ppb (8) N/A 0.0 ppb (0) 18.0 ppb (14) 0.24 ppb (3) 13.0 μg/m3 (12) 11.0 μg/m3 (46) 46.0
 
Jan. 15, 2019, 10 a.m. 8.4 ppb (8) 0.4 ppb (0) 8.8 ppb (8) 8.0 ppb (7) N/A 0.0 ppb (0) 18.0 ppb (14) 0.24 ppb (3) 10.0 μg/m3 (9) 9.0 μg/m3 (38) 38.0
 
Jan. 15, 2019, 9 a.m. 9.6 ppb (9) 0.5 ppb (0) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 15.0 ppb (12) 0.25 ppb (3) 14.0 μg/m3 (13) 11.0 μg/m3 (46) 46.0
 
Jan. 15, 2019, 8 a.m. 11.6 ppb (11) 0.5 ppb (0) 13.2 ppb (12) 11.0 ppb (10) N/A 0.0 ppb (0) N/A 0.26 ppb (3) 8.0 μg/m3 (7) 14.0 μg/m3 (54) 54.0
 
Jan. 15, 2019, 7 a.m. 8.4 ppb (8) 0.6 ppb (1) 9.6 ppb (9) 8.0 ppb (7) N/A 0.0 ppb (0) 16.0 ppb (12) 0.24 ppb (3) 9.0 μg/m3 (8) 14.0 μg/m3 (54) 54.0
 
Jan. 15, 2019, 6 a.m. N/A N/A 7.6 ppb (7) N/A N/A N/A 19.0 ppb (15) 0.22 ppb (2) 9.0 μg/m3 (8) 14.0 μg/m3 (54) 54.0
 
Jan. 15, 2019, 5 a.m. 4.6 ppb (4) 0.4 ppb (0) 5.8 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 24.0 ppb (18) N/A 11.0 μg/m3 (10) 11.0 μg/m3 (46) 46.0
 
Jan. 15, 2019, 4 a.m. 5.3 ppb (5) 0.3 ppb (0) 5.8 ppb (5) 5.0 ppb (5) N/A 0.0 ppb (0) 25.0 ppb (19) 0.22 ppb (2) 9.0 μg/m3 (8) 13.0 μg/m3 (52) 52.0
 
Jan. 15, 2019, 3 a.m. 8.5 ppb (8) 0.4 ppb (0) 8.7 ppb (8) 8.0 ppb (7) N/A 0.0 ppb (0) 22.0 ppb (17) 0.26 ppb (3) 13.0 μg/m3 (12) 13.0 μg/m3 (52) 52.0
 
Jan. 15, 2019, 2 a.m. 9.5 ppb (9) 0.5 ppb (0) 9.0 ppb (8) 9.0 ppb (8) N/A 0.0 ppb (0) 22.0 ppb (17) 0.29 ppb (3) 16.0 μg/m3 (15) 14.0 μg/m3 (54) 54.0
 
Jan. 15, 2019, 1 a.m. 12.1 ppb (11) 0.5 ppb (0) 11.2 ppb (10) 12.0 ppb (11) N/A 0.0 ppb (0) 19.0 ppb (15) 0.31 ppb (3) 15.0 μg/m3 (14) 12.0 μg/m3 (50) 50.0
 
Jan. 15, 2019, midnight 15.1 ppb (14) 0.7 ppb (1) 14.1 ppb (13) 14.0 ppb (13) N/A 0.0 ppb (0) 17.0 ppb (13) 0.34 ppb (4) 11.0 μg/m3 (10) 12.0 μg/m3 (50) 50.0
 
Jan. 14, 2019, 11 p.m. 10.5 ppb (10) 0.7 ppb (1) 11.0 ppb (10) 10.0 ppb (9) N/A 0.0 ppb (0) 25.0 ppb (19) 0.28 ppb (3) 14.0 μg/m3 (13) 9.0 μg/m3 (38) 38.0
 
Jan. 14, 2019, 10 p.m. 6.5 ppb (6) 0.8 ppb (1) 5.6 ppb (5) 6.0 ppb (6) N/A 0.0 ppb (0) 31.0 ppb (24) 0.23 ppb (3) 13.0 μg/m3 (12) 7.0 μg/m3 (29) 29.0
 
Jan. 14, 2019, 9 p.m. 4.8 ppb (4) 1.2 ppb (1) 4.1 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 34.0 ppb (26) 0.2 ppb (2) 10.0 μg/m3 (9) 11.0 μg/m3 (46) 46.0
 
Jan. 14, 2019, 8 p.m. 3.8 ppb (4) 1.1 ppb (1) 3.7 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 35.0 ppb (27) 0.2 ppb (2) 8.0 μg/m3 (7) 10.0 μg/m3 (42) 42.0
 
Jan. 14, 2019, 7 p.m. 3.4 ppb (3) 1.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) 0.19 ppb (2) 10.0 μg/m3 (9) 13.0 μg/m3 (52) 52.0
 
Jan. 14, 2019, 6 p.m. 2.6 ppb (2) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (25) 0.19 ppb (2) 8.0 μg/m3 (7) 10.0 μg/m3 (42) 42.0
 
Jan. 14, 2019, 5 p.m. 2.8 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (24) 0.2 ppb (2) 8.0 μg/m3 (7) 12.0 μg/m3 (50) 50.0
 
Jan. 14, 2019, 4 p.m. 3.5 ppb (3) 1.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) 0.21 ppb (2) 12.0 μg/m3 (11) 15.0 μg/m3 (56) 56.0
 
Jan. 14, 2019, 3 p.m. 3.7 ppb (3) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (21) 0.22 ppb (2) 16.0 μg/m3 (15) 14.0 μg/m3 (54) 54.0
 
Jan. 14, 2019, 2 p.m. 4.4 ppb (4) 1.1 ppb (1) 5.5 ppb (5) 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) 0.22 ppb (2) 12.0 μg/m3 (11) 15.0 μg/m3 (56) 56.0
 
Jan. 14, 2019, 1 p.m. 4.8 ppb (4) 0.8 ppb (1) 6.2 ppb (6) 4.0 ppb (4) N/A 0.0 ppb (0) 25.0 ppb (19) 0.23 ppb (3) 11.0 μg/m3 (10) 11.0 μg/m3 (46) 46.0
 
Jan. 14, 2019, noon 4.1 ppb (4) 0.5 ppb (0) 4.9 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 25.0 ppb (19) 0.22 ppb (2) 13.0 μg/m3 (12) 17.0 μg/m3 (61) 61.0
 
Jan. 14, 2019, 11 a.m. 3.6 ppb (3) 0.3 ppb (0) 4.7 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (19) 0.22 ppb (2) 10.0 μg/m3 (9) 11.0 μg/m3 (46) 46.0
 
Jan. 14, 2019, 10 a.m. 3.2 ppb (3) 0.3 ppb (0) 4.3 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (19) 0.22 ppb (2) 12.0 μg/m3 (11) 14.0 μg/m3 (54) 54.0
 
Jan. 14, 2019, 9 a.m. 3.3 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 24.0 ppb (18) 0.23 ppb (3) 9.0 μg/m3 (8) 12.0 μg/m3 (50) 50.0
 
Jan. 14, 2019, 8 a.m. 3.8 ppb (4) 0.3 ppb (0) 4.7 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.22 ppb (2) 7.0 μg/m3 (6) 9.0 μg/m3 (38) 38.0
 
Jan. 14, 2019, 7 a.m. 4.1 ppb (4) 0.5 ppb (0) 4.6 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 23.0 ppb (18) 0.22 ppb (2) 8.0 μg/m3 (7) 11.0 μg/m3 (46) 46.0
 
Jan. 14, 2019, 6 a.m. N/A N/A 4.6 ppb (4) N/A N/A N/A 81.0 ppb (63) 0.22 ppb (2) 6.0 μg/m3 (5) 8.0 μg/m3 (33) 63.0
 
Jan. 14, 2019, 5 a.m. 3.7 ppb (3) 0.2 ppb (0) 4.0 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 24.0 ppb (18) N/A 6.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
Jan. 14, 2019, 4 a.m. 4.0 ppb (4) 0.3 ppb (0) 4.1 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 24.0 ppb (18) 0.21 ppb (2) 5.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
Jan. 14, 2019, 3 a.m. 3.4 ppb (3) 0.3 ppb (0) 3.4 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) 0.19 ppb (2) 5.0 μg/m3 (5) 5.0 μg/m3 (21) 21.0
 
Jan. 14, 2019, 2 a.m. 2.6 ppb (2) 0.3 ppb (0) 2.7 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (22) 0.18 ppb (2) 5.0 μg/m3 (5) 5.0 μg/m3 (21) 22.0
 
Jan. 14, 2019, 1 a.m. 2.1 ppb (2) 0.3 ppb (0) 2.3 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) 0.18 ppb (2) 4.0 μg/m3 (4) 7.0 μg/m3 (29) 29.0
 
Jan. 14, 2019, midnight 2.0 ppb (2) 0.3 ppb (0) 2.0 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (24) 0.17 ppb (2) 4.0 μg/m3 (4) 7.0 μg/m3 (29) 29.0
 
Jan. 13, 2019, 11 p.m. 2.3 ppb (2) 0.3 ppb (0) 2.3 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (25) 0.18 ppb (2) 3.0 μg/m3 (3) 6.0 μg/m3 (25) 25.0
 
Jan. 13, 2019, 10 p.m. 2.2 ppb (2) 0.3 ppb (0) 2.2 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (25) 0.17 ppb (2) 3.0 μg/m3 (3) 7.0 μg/m3 (29) 29.0
 
Jan. 13, 2019, 9 p.m. 2.4 ppb (2) 0.3 ppb (0) 2.3 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (25) 0.17 ppb (2) 4.0 μg/m3 (4) 5.0 μg/m3 (21) 25.0
 
Jan. 13, 2019, 8 p.m. 2.3 ppb (2) 0.4 ppb (0) 2.2 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (25) 0.17 ppb (2) 3.0 μg/m3 (3) 6.0 μg/m3 (25) 25.0
 
Jan. 13, 2019, 7 p.m. 2.5 ppb (2) 0.5 ppb (0) 2.4 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (25) 0.17 ppb (2) 0.0 μg/m3 (0) 3.0 μg/m3 (12) 25.0
 
Jan. 13, 2019, 6 p.m. 2.5 ppb (2) 0.5 ppb (0) 2.4 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (25) 0.17 ppb (2) -1.0 μg/m3 (0) 4.0 μg/m3 (17) 25.0
 
Jan. 13, 2019, 5 p.m. 2.4 ppb (2) 0.7 ppb (1) 2.4 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (25) 0.17 ppb (2) 2.0 μg/m3 (2) 6.0 μg/m3 (25) 25.0
 
Jan. 13, 2019, 4 p.m. 2.9 ppb (3) 0.9 ppb (1) 2.8 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (25) 0.16 ppb (2) 4.0 μg/m3 (4) 5.0 μg/m3 (21) 25.0
 
Jan. 13, 2019, 3 p.m. 3.1 ppb (3) 0.8 ppb (1) 3.0 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (24) 0.17 ppb (2) 5.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
Jan. 13, 2019, 2 p.m. 3.0 ppb (3) 0.7 ppb (1) 2.8 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) 0.16 ppb (2) 7.0 μg/m3 (6) 5.0 μg/m3 (21) 23.0
 
Jan. 13, 2019, 1 p.m. 2.2 ppb (2) 0.4 ppb (0) 2.1 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) 0.16 ppb (2) 5.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
Jan. 13, 2019, noon 1.9 ppb (2) 0.3 ppb (0) 1.8 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (24) 0.16 ppb (2) 4.0 μg/m3 (4) 6.0 μg/m3 (25) 25.0
 
Jan. 13, 2019, 11 a.m. 2.4 ppb (2) 0.4 ppb (0) 2.3 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (22) 0.16 ppb (2) 3.0 μg/m3 (3) 6.0 μg/m3 (25) 25.0
 
Jan. 13, 2019, 10 a.m. 2.3 ppb (2) 0.5 ppb (0) 2.1 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) 0.16 ppb (2) 6.0 μg/m3 (5) 3.0 μg/m3 (12) 23.0
 
Jan. 13, 2019, 9 a.m. 2.2 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) 0.16 ppb (2) 9.0 μg/m3 (8) 6.0 μg/m3 (25) 25.0
 
Jan. 13, 2019, 8 a.m. 2.9 ppb (3) 0.6 ppb (1) 3.1 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.16 ppb (2) 10.0 μg/m3 (9) 11.0 μg/m3 (46) 46.0
 
Jan. 13, 2019, 7 a.m. 2.9 ppb (3) 0.7 ppb (1) 3.5 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 28.0 ppb (22) 0.16 ppb (2) 13.0 μg/m3 (12) 8.0 μg/m3 (33) 33.0
 
Jan. 13, 2019, 6 a.m. N/A N/A 4.0 ppb (4) N/A N/A N/A 27.0 ppb (21) 0.17 ppb (2) 11.0 μg/m3 (10) 15.0 μg/m3 (56) 56.0
 
Jan. 13, 2019, 5 a.m. 3.9 ppb (4) 0.7 ppb (1) 4.5 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 15.0 μg/m3 (14) 8.0 μg/m3 (33) 33.0
 
Jan. 13, 2019, 4 a.m. 4.2 ppb (4) 0.8 ppb (1) 4.8 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (21) 0.18 ppb (2) 14.0 μg/m3 (13) 10.0 μg/m3 (42) 42.0
 
Jan. 13, 2019, 3 a.m. 3.7 ppb (3) 0.7 ppb (1) 4.5 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (23) 0.17 ppb (2) 12.0 μg/m3 (11) 10.0 μg/m3 (42) 42.0
 
Jan. 13, 2019, 2 a.m. 3.7 ppb (3) 0.6 ppb (1) 4.5 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (23) 0.18 ppb (2) 16.0 μg/m3 (15) 16.0 μg/m3 (59) 59.0
 
Jan. 13, 2019, 1 a.m. 3.6 ppb (3) 0.4 ppb (0) 4.5 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (23) 0.18 ppb (2) 12.0 μg/m3 (11) 13.0 μg/m3 (52) 52.0
 
Jan. 13, 2019, midnight 4.1 ppb (4) 0.5 ppb (0) 5.0 ppb (5) 4.0 ppb (4) N/A 1.0 ppb (1) 30.0 ppb (23) 0.19 ppb (2) 15.0 μg/m3 (14) 11.0 μg/m3 (46) 46.0
 
Jan. 12, 2019, 11 p.m. 5.1 ppb (5) 0.6 ppb (1) 5.8 ppb (5) 5.0 ppb (5) N/A 1.0 ppb (1) 30.0 ppb (23) 0.2 ppb (2) 15.0 μg/m3 (14) 14.0 μg/m3 (54) 54.0
 
Jan. 12, 2019, 10 p.m. 5.5 ppb (5) 0.5 ppb (0) 6.2 ppb (6) 5.0 ppb (5) N/A 1.0 ppb (1) 30.0 ppb (23) 0.2 ppb (2) 15.0 μg/m3 (14) 12.0 μg/m3 (50) 50.0
 
Jan. 12, 2019, 9 p.m. 5.1 ppb (5) 0.6 ppb (1) 5.9 ppb (5) 5.0 ppb (5) N/A 1.0 ppb (1) 31.0 ppb (24) 0.19 ppb (2) 11.0 μg/m3 (10) 10.0 μg/m3 (42) 42.0
 
Jan. 12, 2019, 8 p.m. 4.6 ppb (4) 0.8 ppb (1) 5.3 ppb (5) 4.0 ppb (4) N/A 1.0 ppb (1) 32.0 ppb (25) 0.18 ppb (2) 12.0 μg/m3 (11) 11.0 μg/m3 (46) 46.0
 
Jan. 12, 2019, 7 p.m. 4.6 ppb (4) 0.8 ppb (1) 5.4 ppb (5) 4.0 ppb (4) N/A 1.0 ppb (1) 32.0 ppb (25) 0.18 ppb (2) 15.0 μg/m3 (14) 12.0 μg/m3 (50) 50.0
 
Jan. 12, 2019, 6 p.m. 4.2 ppb (4) 0.8 ppb (1) 4.8 ppb (4) 3.0 ppb (3) N/A 1.0 ppb (1) 34.0 ppb (26) 0.17 ppb (2) 13.0 μg/m3 (12) 12.0 μg/m3 (50) 50.0
 
Jan. 12, 2019, 5 p.m. 4.7 ppb (4) 1.1 ppb (1) 5.3 ppb (5) 4.0 ppb (4) N/A 1.0 ppb (1) 33.0 ppb (25) 0.18 ppb (2) 11.0 μg/m3 (10) 11.0 μg/m3 (46) 46.0
 
Jan. 12, 2019, 4 p.m. 4.8 ppb (4) 0.9 ppb (1) 5.4 ppb (5) 4.0 ppb (4) N/A 1.0 ppb (1) 33.0 ppb (25) 0.18 ppb (2) 12.0 μg/m3 (11) 12.0 μg/m3 (50) 50.0
 
Jan. 12, 2019, 3 p.m. 4.9 ppb (5) 1.3 ppb (1) 5.6 ppb (5) 4.0 ppb (4) N/A 1.0 ppb (1) 32.0 ppb (25) 0.19 ppb (2) 12.0 μg/m3 (11) 13.0 μg/m3 (52) 52.0
 
Jan. 12, 2019, 2 p.m. 6.2 ppb (6) 1.3 ppb (1) 6.7 ppb (6) 5.0 ppb (5) N/A 1.0 ppb (1) 28.0 ppb (22) 0.21 ppb (2) 14.0 μg/m3 (13) 13.0 μg/m3 (52) 52.0
 
Jan. 12, 2019, 1 p.m. 8.2 ppb (8) 1.0 ppb (1) 8.7 ppb (8) 7.0 ppb (6) N/A 1.0 ppb (1) 23.0 ppb (18) 0.23 ppb (3) 12.0 μg/m3 (11) 16.0 μg/m3 (59) 59.0
 
Jan. 12, 2019, noon 7.8 ppb (7) 0.7 ppb (1) 8.8 ppb (8) 7.0 ppb (6) N/A 1.0 ppb (1) 22.0 ppb (17) 0.22 ppb (2) 14.0 μg/m3 (13) 16.0 μg/m3 (59) 59.0
 
Jan. 12, 2019, 11 a.m. 7.8 ppb (7) 0.5 ppb (0) 10.3 ppb (10) 7.0 ppb (6) N/A 1.0 ppb (1) 21.0 ppb (16) 0.21 ppb (2) 14.0 μg/m3 (13) 15.0 μg/m3 (56) 56.0
 
Jan. 12, 2019, 10 a.m. 5.3 ppb (5) 0.5 ppb (0) 7.9 ppb (7) 5.0 ppb (5) N/A 1.0 ppb (1) 24.0 ppb (18) 0.2 ppb (2) 11.0 μg/m3 (10) 14.0 μg/m3 (54) 54.0
 
Jan. 12, 2019, 9 a.m. 5.8 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 25.0 ppb (19) 0.2 ppb (2) 16.0 μg/m3 (15) 16.0 μg/m3 (59) 59.0
 
Jan. 12, 2019, 8 a.m. 7.4 ppb (7) 0.6 ppb (1) 8.0 ppb (7) 7.0 ppb (6) N/A 1.0 ppb (1) N/A 0.23 ppb (3) 11.0 μg/m3 (10) 18.0 μg/m3 (63) 63.0
 
Jan. 12, 2019, 7 a.m. 14.7 ppb (14) 0.9 ppb (1) 13.5 ppb (12) 14.0 ppb (13) N/A 1.0 ppb (1) 17.0 ppb (13) 0.28 ppb (3) 20.0 μg/m3 (18) 22.0 μg/m3 (71) 71.0
 
Jan. 12, 2019, 6 a.m. N/A N/A 28.8 ppb (27) N/A N/A N/A 5.0 ppb (4) 0.43 ppb (5) 16.0 μg/m3 (15) 15.0 μg/m3 (56) 56.0
 
Jan. 12, 2019, 5 a.m. 26.2 ppb (24) 3.8 ppb (4) 27.4 ppb (25) 22.0 ppb (20) N/A 1.0 ppb (1) 7.0 ppb (5) N/A 20.0 μg/m3 (18) 18.0 μg/m3 (63) 63.0
 
Jan. 12, 2019, 4 a.m. 39.5 ppb (37) 12.3 ppb (11) 28.8 ppb (27) 27.0 ppb (25) N/A 1.0 ppb (1) 3.0 ppb (2) 0.56 ppb (6) 27.0 μg/m3 (25) 16.0 μg/m3 (59) 59.0
 
Jan. 12, 2019, 3 a.m. 45.5 ppb (42) 18.8 ppb (17) 48.0 ppb (44) 27.0 ppb (25) N/A 1.0 ppb (1) 3.0 ppb (2) 0.65 ppb (7) 22.0 μg/m3 (20) 15.0 μg/m3 (56) 56.0
 
Jan. 12, 2019, 2 a.m. 31.6 ppb (29) 6.6 ppb (6) 27.7 ppb (26) 25.0 ppb (23) N/A 0.0 ppb (0) 7.0 ppb (5) 0.5 ppb (6) 24.0 μg/m3 (22) 19.0 μg/m3 (65) 65.0
 
Jan. 12, 2019, 1 a.m. 32.8 ppb (30) 6.8 ppb (6) 33.8 ppb (31) 26.0 ppb (24) N/A 1.0 ppb (1) 7.0 ppb (5) 0.48 ppb (5) 26.0 μg/m3 (24) 15.0 μg/m3 (56) 56.0
 
Jan. 12, 2019, midnight 44.6 ppb (41) 14.7 ppb (14) 42.7 ppb (40) 30.0 ppb (28) N/A 1.0 ppb (1) 5.0 ppb (4) 0.72 ppb (8) 22.0 μg/m3 (20) 14.0 μg/m3 (54) 54.0
 
Jan. 11, 2019, 11 p.m. 46.3 ppb (43) 18.0 ppb (17) 38.0 ppb (35) 28.0 ppb (26) N/A 1.0 ppb (1) 7.0 ppb (5) 0.6 ppb (7) 20.0 μg/m3 (18) 8.0 μg/m3 (33) 43.0
 
Jan. 11, 2019, 10 p.m. 12.4 ppb (11) 2.3 ppb (2) 10.7 ppb (10) 10.0 ppb (9) N/A 0.0 ppb (0) 25.0 ppb (19) 0.24 ppb (3) 13.0 μg/m3 (12) 8.0 μg/m3 (33) 33.0
 
Jan. 11, 2019, 9 p.m. 9.2 ppb (9) 2.2 ppb (2) 9.3 ppb (9) 7.0 ppb (6) N/A 0.0 ppb (0) 30.0 ppb (23) 0.21 ppb (2) 8.0 μg/m3 (7) 8.0 μg/m3 (33) 33.0
 
Jan. 11, 2019, 8 p.m. 6.5 ppb (6) 2.0 ppb (2) 7.7 ppb (7) 4.0 ppb (4) N/A 1.0 ppb (1) 32.0 ppb (25) 0.2 ppb (2) 9.0 μg/m3 (8) 11.0 μg/m3 (46) 46.0
 
Jan. 11, 2019, 7 p.m. 11.5 ppb (11) 7.2 ppb (7) 9.8 ppb (9) 4.0 ppb (4) N/A 1.0 ppb (1) 32.0 ppb (25) 0.17 ppb (2) 11.0 μg/m3 (10) 9.0 μg/m3 (38) 38.0
 
Jan. 11, 2019, 6 p.m. 6.3 ppb (6) 2.5 ppb (2) 6.4 ppb (6) 4.0 ppb (4) N/A 1.0 ppb (1) 33.0 ppb (25) 0.17 ppb (2) 8.0 μg/m3 (7) 9.0 μg/m3 (38) 38.0
 
Jan. 11, 2019, 5 p.m. 5.3 ppb (5) 2.2 ppb (2) 5.9 ppb (5) 3.0 ppb (3) N/A 1.0 ppb (1) 32.0 ppb (25) 0.16 ppb (2) 7.0 μg/m3 (6) 11.0 μg/m3 (46) 46.0
 
Jan. 11, 2019, 4 p.m. 4.2 ppb (4) 1.7 ppb (2) 4.6 ppb (4) 2.0 ppb (2) N/A 1.0 ppb (1) 32.0 ppb (25) 0.15 ppb (2) 8.0 μg/m3 (7) 12.0 μg/m3 (50) 50.0
 
Jan. 11, 2019, 3 p.m. 5.0 ppb (5) 2.0 ppb (2) 5.6 ppb (5) 3.0 ppb (3) N/A 1.0 ppb (1) 28.0 ppb (22) 0.16 ppb (2) 13.0 μg/m3 (12) 14.0 μg/m3 (54) 54.0
 
Jan. 11, 2019, 2 p.m. 5.7 ppb (5) 2.1 ppb (2) 5.8 ppb (5) 4.0 ppb (4) N/A 1.0 ppb (1) 26.0 ppb (20) 0.16 ppb (2) 18.0 μg/m3 (16) 11.0 μg/m3 (46) 46.0
 
Jan. 11, 2019, 1 p.m. 10.9 ppb (10) 2.9 ppb (3) 10.7 ppb (10) 8.0 ppb (7) N/A 1.0 ppb (1) 20.0 ppb (15) 0.2 ppb (2) 15.0 μg/m3 (14) 10.0 μg/m3 (42) 42.0
 
Jan. 11, 2019, noon 16.5 ppb (15) 2.5 ppb (2) 14.8 ppb (14) 14.0 ppb (13) N/A 1.0 ppb (1) 13.0 ppb (10) 0.25 ppb (3) 12.0 μg/m3 (11) 8.0 μg/m3 (33) 33.0
 
Jan. 11, 2019, 11 a.m. 9.1 ppb (8) 0.5 ppb (0) 9.5 ppb (9) 9.0 ppb (8) N/A 1.0 ppb (1) 17.0 ppb (13) 0.18 ppb (2) 9.0 μg/m3 (8) 10.0 μg/m3 (42) 42.0
 
Jan. 11, 2019, 10 a.m. 6.1 ppb (6) 0.3 ppb (0) 6.3 ppb (6) 6.0 ppb (6) N/A 1.0 ppb (1) 20.0 ppb (15) 0.16 ppb (2) 13.0 μg/m3 (12) 9.0 μg/m3 (38) 38.0
 
Jan. 11, 2019, 9 a.m. 4.0 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 23.0 ppb (18) 0.15 ppb (2) 9.0 μg/m3 (8) 9.0 μg/m3 (38) 38.0
 
Jan. 11, 2019, 8 a.m. 3.6 ppb (3) 0.2 ppb (0) 4.1 ppb (4) 3.0 ppb (3) N/A 1.0 ppb (1) N/A 0.15 ppb (2) 11.0 μg/m3 (10) 8.0 μg/m3 (33) 33.0
 
Jan. 11, 2019, 7 a.m. 3.8 ppb (4) 0.3 ppb (0) 4.2 ppb (4) 4.0 ppb (4) N/A 1.0 ppb (1) 24.0 ppb (18) 0.15 ppb (2) 12.0 μg/m3 (11) 8.0 μg/m3 (33) 33.0
 
Jan. 11, 2019, 6 a.m. N/A N/A 4.4 ppb (4) N/A N/A N/A 24.0 ppb (18) 0.15 ppb (2) 11.0 μg/m3 (10) 10.0 μg/m3 (42) 42.0
 
Jan. 11, 2019, 5 a.m. 4.4 ppb (4) 0.3 ppb (0) 4.8 ppb (4) 4.0 ppb (4) N/A 3.0 ppb (4) 24.0 ppb (18) N/A 13.0 μg/m3 (12) 10.0 μg/m3 (42) 42.0
 
Jan. 11, 2019, 4 a.m. 4.3 ppb (4) 0.2 ppb (0) 4.7 ppb (4) 4.0 ppb (4) N/A 3.0 ppb (4) 25.0 ppb (19) 0.14 ppb (2) 11.0 μg/m3 (10) 7.0 μg/m3 (29) 29.0
 
Jan. 11, 2019, 3 a.m. 3.5 ppb (3) 0.2 ppb (0) 3.9 ppb (4) 3.0 ppb (3) N/A 2.0 ppb (3) 26.0 ppb (20) 0.14 ppb (2) 9.0 μg/m3 (8) 7.0 μg/m3 (29) 29.0
 
Jan. 11, 2019, 2 a.m. 3.1 ppb (3) 0.2 ppb (0) 3.4 ppb (3) 3.0 ppb (3) N/A 2.0 ppb (3) 28.0 ppb (22) 0.14 ppb (2) 9.0 μg/m3 (8) 4.0 μg/m3 (17) 22.0
 
Jan. 11, 2019, 1 a.m. 3.2 ppb (3) 0.2 ppb (0) 3.3 ppb (3) 3.0 ppb (3) N/A 1.0 ppb (1) 29.0 ppb (22) 0.14 ppb (2) 7.0 μg/m3 (6) 6.0 μg/m3 (25) 25.0
 
Jan. 11, 2019, midnight 3.7 ppb (3) 0.2 ppb (0) 4.0 ppb (4) 3.0 ppb (3) N/A 1.0 ppb (1) 27.0 ppb (21) 0.15 ppb (2) 9.0 μg/m3 (8) 10.0 μg/m3 (42) 42.0
 
Jan. 10, 2019, 11 p.m. 4.4 ppb (4) 0.4 ppb (0) 4.5 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (22) 0.16 ppb (2) 11.0 μg/m3 (10) 9.0 μg/m3 (38) 38.0
 
Jan. 10, 2019, 10 p.m. 4.6 ppb (4) 0.7 ppb (1) 4.5 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (22) 0.17 ppb (2) 12.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
Jan. 10, 2019, 9 p.m. 3.4 ppb (3) 0.9 ppb (1) 3.4 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (24) 0.16 ppb (2) 10.0 μg/m3 (9) 8.0 μg/m3 (33) 33.0
 
Jan. 10, 2019, 8 p.m. 5.4 ppb (5) 1.7 ppb (2) 4.0 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (24) 0.15 ppb (2) 6.0 μg/m3 (5) 10.0 μg/m3 (42) 42.0
 
Jan. 10, 2019, 7 p.m. 3.5 ppb (3) 1.4 ppb (1) 3.3 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (24) 0.15 ppb (2) 7.0 μg/m3 (6) 7.0 μg/m3 (29) 29.0
 
Jan. 10, 2019, 6 p.m. 2.9 ppb (3) 1.2 ppb (1) 3.0 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (24) 0.15 ppb (2) 9.0 μg/m3 (8) 10.0 μg/m3 (42) 42.0
 
Jan. 10, 2019, 5 p.m. 2.5 ppb (2) 1.1 ppb (1) 3.0 ppb (3) 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (23) 0.15 ppb (2) 2.0 μg/m3 (2) 13.0 μg/m3 (52) 52.0
 
Jan. 10, 2019, 4 p.m. 3.0 ppb (3) 1.3 ppb (1) 3.3 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (22) 0.14 ppb (2) 2.0 μg/m3 (2) 11.0 μg/m3 (46) 46.0
 
Jan. 10, 2019, 3 p.m. 3.2 ppb (3) 1.5 ppb (1) 3.5 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 28.0 ppb (22) 0.14 ppb (2) 9.0 μg/m3 (8) 10.0 μg/m3 (42) 42.0
 
Jan. 10, 2019, 2 p.m. 4.2 ppb (4) 1.7 ppb (2) 4.4 ppb (4) 2.0 ppb (2) N/A 0.0 ppb (0) 27.0 ppb (21) 0.15 ppb (2) 6.0 μg/m3 (5) 11.0 μg/m3 (46) 46.0
 
Jan. 10, 2019, 1 p.m. 4.9 ppb (5) 1.3 ppb (1) 4.7 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 26.0 ppb (20) 0.16 ppb (2) 8.0 μg/m3 (7) 10.0 μg/m3 (42) 42.0
 
Jan. 10, 2019, noon 5.1 ppb (5) 0.8 ppb (1) 4.9 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 24.0 ppb (18) 0.16 ppb (2) 7.0 μg/m3 (6) 11.0 μg/m3 (46) 46.0