AQSQID: 130890002

Site Name: South Dekalb

Location: Decatur (Clifton Spgs Rd), GA

Reporting: True, Located: True

Current AQI: 49.0

Decatur (Clifton Spgs Rd) GA, US: 33.6906, -84.2731

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 22, 2020, 10 a.m. 46.6 ppb (43) 24.0 ppb (22) 53.0 ppb (49) 23.0 ppb (21) N/A 0.0 ppb (0) 0.0 ppb (0) 0.35 ppb (4) 13.0 μg/m3 (12) 10.5 μg/m3 (44) 49.0
 
Jan. 22, 2020, 9 a.m. 39.9 ppb (37) 16.8 ppb (16) N/A 23.0 ppb (21) N/A 0.0 ppb (0) 0.0 ppb (0) N/A 13.0 μg/m3 (12) 10.8 μg/m3 (45) 45.0
 
Jan. 22, 2020, 8 a.m. 53.3 ppb (49) 29.0 ppb (27) N/A 24.0 ppb (22) N/A 0.0 ppb (0) 1.0 ppb (1) N/A 17.0 μg/m3 (15) 13.9 μg/m3 (54) 54.0
 
Jan. 22, 2020, 7 a.m. 21.9 ppb (20) 0.9 ppb (1) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 4.0 ppb (3) 0.25 ppb (3) 12.0 μg/m3 (11) 10.4 μg/m3 (43) 43.0
 
Jan. 22, 2020, 6 a.m. 21.2 ppb (20) -0.2 ppb (0) 24.0 ppb (22) 22.0 ppb (20) N/A 0.0 ppb (0) 7.0 ppb (5) 0.25 ppb (3) 16.0 μg/m3 (15) 13.7 μg/m3 (54) 54.0
 
Jan. 22, 2020, 5 a.m. 14.8 ppb (14) -0.4 ppb (0) 17.0 ppb (16) 15.0 ppb (14) N/A 0.0 ppb (0) 13.0 ppb (10) 0.22 ppb (2) 12.0 μg/m3 (11) 10.0 μg/m3 (42) 42.0
 
Jan. 22, 2020, 4 a.m. 16.0 ppb (15) -0.4 ppb (0) 17.0 ppb (16) 17.0 ppb (16) N/A 0.0 ppb (0) 13.0 ppb (10) 0.23 ppb (3) N/A N/A 16.0
 
Jan. 22, 2020, 3 a.m. 17.1 ppb (16) -0.4 ppb (0) 18.0 ppb (17) 18.0 ppb (17) N/A 0.0 ppb (0) 12.0 ppb (9) 0.24 ppb (3) 13.0 μg/m3 (12) 10.0 μg/m3 (42) 42.0
 
Jan. 22, 2020, 2 a.m. 16.4 ppb (15) -0.4 ppb (0) 18.0 ppb (17) 17.0 ppb (16) N/A 0.0 ppb (0) 14.0 ppb (11) 0.26 ppb (3) 13.0 μg/m3 (12) 10.2 μg/m3 (42) 42.0
 
Jan. 22, 2020, 1 a.m. 14.0 ppb (13) -0.3 ppb (0) 15.0 ppb (14) 15.0 ppb (14) N/A 0.0 ppb (0) 19.0 ppb (15) 0.24 ppb (3) 13.0 μg/m3 (12) 9.7 μg/m3 (40) 40.0
 
Jan. 22, 2020, midnight 16.8 ppb (16) -0.3 ppb (0) 18.0 ppb (17) 17.0 ppb (16) N/A 0.0 ppb (0) 16.0 ppb (12) 0.26 ppb (3) 12.0 μg/m3 (11) 9.7 μg/m3 (40) 40.0
 
Jan. 21, 2020, 11 p.m. 16.5 ppb (15) -0.3 ppb (0) 18.0 ppb (17) 17.0 ppb (16) N/A 0.0 ppb (0) 19.0 ppb (15) 0.23 ppb (3) 13.0 μg/m3 (12) 9.1 μg/m3 (38) 38.0
 
Jan. 21, 2020, 10 p.m. 9.1 ppb (8) -0.1 ppb (0) 10.0 ppb (9) 9.0 ppb (8) N/A 0.0 ppb (0) 26.0 ppb (20) 0.2 ppb (2) 13.0 μg/m3 (12) 9.8 μg/m3 (41) 41.0
 
Jan. 21, 2020, 9 p.m. 6.3 ppb (6) 0.4 ppb (0) 7.0 ppb (6) 6.0 ppb (6) N/A 0.0 ppb (0) 31.0 ppb (24) 0.18 ppb (2) 13.0 μg/m3 (12) 9.8 μg/m3 (41) 41.0
 
Jan. 21, 2020, 8 p.m. 5.4 ppb (5) 0.8 ppb (1) 6.0 ppb (6) 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (24) 0.18 ppb (2) 13.0 μg/m3 (12) 9.7 μg/m3 (40) 40.0
 
Jan. 21, 2020, 7 p.m. 6.2 ppb (6) 1.4 ppb (1) 7.0 ppb (6) 5.0 ppb (5) N/A 0.0 ppb (0) 29.0 ppb (22) 0.19 ppb (2) 14.0 μg/m3 (13) 9.7 μg/m3 (40) 40.0
 
Jan. 21, 2020, 6 p.m. N/A N/A 9.0 ppb (8) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.2 ppb (2) 13.0 μg/m3 (12) 9.9 μg/m3 (41) 41.0
 
Jan. 21, 2020, 5 p.m. N/A N/A 10.0 ppb (9) N/A N/A 0.0 ppb (0) 24.0 ppb (18) 0.22 ppb (2) 13.0 μg/m3 (12) 9.6 μg/m3 (40) 40.0
 
Jan. 21, 2020, 4 p.m. N/A N/A 12.0 ppb (11) N/A N/A 0.0 ppb (0) 21.0 ppb (16) 0.23 ppb (3) 13.0 μg/m3 (12) 9.6 μg/m3 (40) 40.0
 
Jan. 21, 2020, 3 p.m. N/A N/A 17.0 ppb (16) N/A N/A 0.0 ppb (0) 14.0 ppb (11) 0.25 ppb (3) N/A N/A 16.0
 
Jan. 21, 2020, 2 p.m. N/A N/A 23.0 ppb (21) N/A N/A 0.0 ppb (0) 8.0 ppb (6) 0.28 ppb (3) 15.0 μg/m3 (14) 9.5 μg/m3 (40) 40.0
 
Jan. 21, 2020, 1 p.m. 26.8 ppb (25) 6.9 ppb (6) 29.0 ppb (27) 20.0 ppb (19) N/A 0.0 ppb (0) 3.0 ppb (2) 0.3 ppb (3) 13.0 μg/m3 (12) 8.8 μg/m3 (37) 37.0
 
Jan. 21, 2020, noon 24.7 ppb (23) 4.0 ppb (4) 27.0 ppb (25) 21.0 ppb (19) N/A 0.0 ppb (0) 2.0 ppb (2) 0.28 ppb (3) 12.0 μg/m3 (11) 8.6 μg/m3 (36) 36.0
 
Jan. 21, 2020, 11 a.m. 24.0 ppb (22) 3.0 ppb (3) 26.0 ppb (24) 21.0 ppb (19) N/A 0.0 ppb (0) 2.0 ppb (2) 0.25 ppb (3) 11.0 μg/m3 (10) 8.1 μg/m3 (34) 34.0
 
Jan. 21, 2020, 10 a.m. 16.5 ppb (15) 0.2 ppb (0) 19.0 ppb (18) 17.0 ppb (16) N/A 0.0 ppb (0) 6.0 ppb (5) 0.21 ppb (2) 10.0 μg/m3 (9) 7.7 μg/m3 (32) 32.0
 
Jan. 21, 2020, 9 a.m. 13.7 ppb (13) -0.2 ppb (0) 15.0 ppb (14) 14.0 ppb (13) N/A 0.0 ppb (0) 10.0 ppb (8) 0.19 ppb (2) 10.0 μg/m3 (9) 7.7 μg/m3 (32) 32.0
 
Jan. 21, 2020, 8 a.m. 9.7 ppb (9) -0.5 ppb (0) 11.0 ppb (10) 10.0 ppb (9) N/A 0.0 ppb (0) 14.0 ppb (11) 0.17 ppb (2) 10.0 μg/m3 (9) 7.6 μg/m3 (32) 32.0
 
Jan. 21, 2020, 7 a.m. 8.9 ppb (8) -0.5 ppb (0) 9.0 ppb (8) 10.0 ppb (9) N/A 0.0 ppb (0) 17.0 ppb (13) 0.18 ppb (2) 10.0 μg/m3 (9) 8.2 μg/m3 (34) 34.0
 
Jan. 21, 2020, 6 a.m. 8.3 ppb (8) -0.5 ppb (0) 9.0 ppb (8) 9.0 ppb (8) N/A 0.0 ppb (0) 18.0 ppb (14) 0.17 ppb (2) 11.0 μg/m3 (10) 9.0 μg/m3 (38) 38.0
 
Jan. 21, 2020, 5 a.m. 8.1 ppb (8) -0.5 ppb (0) 9.0 ppb (8) 9.0 ppb (8) N/A 0.0 ppb (0) 19.0 ppb (15) 0.17 ppb (2) 10.0 μg/m3 (9) 7.6 μg/m3 (32) 32.0
 
Jan. 21, 2020, 4 a.m. 6.9 ppb (6) -0.5 ppb (0) 7.0 ppb (6) 8.0 ppb (7) N/A 0.0 ppb (0) 22.0 ppb (17) 0.17 ppb (2) N/A N/A 17.0
 
Jan. 21, 2020, 3 a.m. 6.1 ppb (6) -0.5 ppb (0) 6.0 ppb (6) 7.0 ppb (6) N/A 0.0 ppb (0) 23.0 ppb (18) 0.17 ppb (2) 10.0 μg/m3 (9) 7.4 μg/m3 (31) 31.0
 
Jan. 21, 2020, 2 a.m. 5.5 ppb (5) -0.4 ppb (0) 6.0 ppb (6) 6.0 ppb (6) N/A N/A 24.0 ppb (18) 0.17 ppb (2) 10.0 μg/m3 (9) 7.6 μg/m3 (32) 32.0
 
Jan. 21, 2020, 1 a.m. 6.0 ppb (6) -0.4 ppb (0) 6.0 ppb (6) 7.0 ppb (6) N/A N/A 25.0 ppb (19) 0.17 ppb (2) 10.0 μg/m3 (9) 7.1 μg/m3 (30) 30.0
 
Jan. 21, 2020, midnight 7.4 ppb (7) -0.4 ppb (0) 8.0 ppb (7) 8.0 ppb (7) N/A N/A 24.0 ppb (18) 0.18 ppb (2) 10.0 μg/m3 (9) 7.4 μg/m3 (31) 31.0
 
Jan. 20, 2020, 11 p.m. N/A N/A 10.0 ppb (9) N/A N/A 0.0 ppb (0) 23.0 ppb (18) 0.19 ppb (2) 11.0 μg/m3 (10) 8.0 μg/m3 (33) 33.0
 
Jan. 20, 2020, 10 p.m. N/A N/A 8.0 ppb (7) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.17 ppb (2) 12.0 μg/m3 (11) 7.9 μg/m3 (33) 33.0
 
Jan. 20, 2020, 9 p.m. N/A N/A 8.0 ppb (7) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.17 ppb (2) 13.0 μg/m3 (12) 8.7 μg/m3 (36) 36.0
 
Jan. 20, 2020, 8 p.m. N/A N/A 8.0 ppb (7) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.17 ppb (2) 13.0 μg/m3 (12) 9.0 μg/m3 (38) 38.0
 
Jan. 20, 2020, 7 p.m. N/A N/A 9.0 ppb (8) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.17 ppb (2) 14.0 μg/m3 (13) 8.7 μg/m3 (36) 36.0
 
Jan. 20, 2020, 6 p.m. 8.3 ppb (8) 2.5 ppb (2) 8.0 ppb (7) 6.0 ppb (6) N/A 0.0 ppb (0) 26.0 ppb (20) 0.17 ppb (2) 13.0 μg/m3 (12) 8.9 μg/m3 (37) 37.0
 
Jan. 20, 2020, 5 p.m. 9.9 ppb (9) 3.3 ppb (3) 11.0 ppb (10) 7.0 ppb (6) N/A 0.0 ppb (0) 25.0 ppb (19) 0.18 ppb (2) 13.0 μg/m3 (12) 9.0 μg/m3 (38) 38.0
 
Jan. 20, 2020, 4 p.m. 9.4 ppb (9) 3.2 ppb (3) 10.0 ppb (9) 6.0 ppb (6) N/A 0.0 ppb (0) 23.0 ppb (18) 0.18 ppb (2) 14.0 μg/m3 (13) 9.2 μg/m3 (38) 38.0
 
Jan. 20, 2020, 3 p.m. 4.5 ppb (4) 1.3 ppb (1) 9.0 ppb (8) 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (17) 0.17 ppb (2) 12.0 μg/m3 (11) 8.9 μg/m3 (37) 37.0
 
Jan. 20, 2020, 2 p.m. 8.0 ppb (7) 1.7 ppb (2) 9.0 ppb (8) 6.0 ppb (6) N/A 0.0 ppb (0) 21.0 ppb (16) 0.17 ppb (2) 12.0 μg/m3 (11) 8.6 μg/m3 (36) 36.0
 
Jan. 20, 2020, 1 p.m. 9.0 ppb (8) 0.8 ppb (1) 10.0 ppb (9) 8.0 ppb (7) N/A 0.0 ppb (0) 19.0 ppb (15) 0.17 ppb (2) 12.0 μg/m3 (11) 8.5 μg/m3 (35) 35.0
 
Jan. 20, 2020, noon 9.2 ppb (9) -0.1 ppb (0) 10.0 ppb (9) 9.0 ppb (8) N/A 0.0 ppb (0) 18.0 ppb (14) 0.17 ppb (2) 10.0 μg/m3 (9) 7.6 μg/m3 (32) 32.0
 
Jan. 20, 2020, 11 a.m. 8.5 ppb (8) -0.3 ppb (0) 9.0 ppb (8) 9.0 ppb (8) N/A 0.0 ppb (0) 19.0 ppb (15) 0.17 ppb (2) 12.0 μg/m3 (11) 8.5 μg/m3 (35) 35.0
 
Jan. 20, 2020, 10 a.m. 5.8 ppb (5) -0.4 ppb (0) 7.0 ppb (6) 6.0 ppb (6) N/A 0.0 ppb (0) 22.0 ppb (17) 0.15 ppb (2) 10.0 μg/m3 (9) 7.0 μg/m3 (29) 29.0
 
Jan. 20, 2020, 9 a.m. 3.9 ppb (4) -0.5 ppb (0) 4.0 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) N/A 0.14 ppb (2) 10.0 μg/m3 (9) 6.6 μg/m3 (28) 28.0
 
Jan. 20, 2020, 8 a.m. 3.5 ppb (3) -0.6 ppb (0) 4.0 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) N/A 0.14 ppb (2) 10.0 μg/m3 (9) 6.4 μg/m3 (27) 27.0
 
Jan. 20, 2020, 7 a.m. 2.8 ppb (3) -0.5 ppb (0) 3.0 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) 0.14 ppb (2) 9.0 μg/m3 (8) 6.1 μg/m3 (25) 25.0
 
Jan. 20, 2020, 6 a.m. 2.8 ppb (3) -0.6 ppb (0) 3.0 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) 0.16 ppb (2) 9.0 μg/m3 (8) 5.5 μg/m3 (23) 23.0
 
Jan. 20, 2020, 5 a.m. 2.6 ppb (2) -0.5 ppb (0) 3.0 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (21) 0.17 ppb (2) 8.0 μg/m3 (7) 4.8 μg/m3 (20) 21.0
 
Jan. 20, 2020, 4 a.m. 3.1 ppb (3) -0.5 ppb (0) 3.0 ppb (3) 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (22) 0.17 ppb (2) N/A N/A 22.0
 
Jan. 20, 2020, 3 a.m. 3.4 ppb (3) -0.5 ppb (0) 3.0 ppb (3) 4.0 ppb (4) N/A 0.0 ppb (0) 29.0 ppb (22) 0.17 ppb (2) 8.0 μg/m3 (7) 4.4 μg/m3 (18) 22.0
 
Jan. 20, 2020, 2 a.m. 3.0 ppb (3) -0.6 ppb (0) 3.0 ppb (3) 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (24) 0.17 ppb (2) 7.0 μg/m3 (6) 3.8 μg/m3 (16) 24.0
 
Jan. 20, 2020, 1 a.m. 3.3 ppb (3) -0.5 ppb (0) 3.0 ppb (3) 4.0 ppb (4) N/A 0.0 ppb (0) 32.0 ppb (25) 0.17 ppb (2) 6.0 μg/m3 (5) 3.6 μg/m3 (15) 25.0
 
Jan. 20, 2020, midnight 2.8 ppb (3) -0.6 ppb (0) 2.0 ppb (2) 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (25) 0.16 ppb (2) 6.0 μg/m3 (5) 3.5 μg/m3 (15) 25.0
 
Jan. 19, 2020, 11 p.m. 4.2 ppb (4) -0.6 ppb (0) 4.0 ppb (4) 5.0 ppb (5) N/A 0.0 ppb (0) 32.0 ppb (25) 0.16 ppb (2) 6.0 μg/m3 (5) 3.3 μg/m3 (14) 25.0
 
Jan. 19, 2020, 10 p.m. 2.8 ppb (3) -0.5 ppb (0) 2.0 ppb (2) 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (26) 0.15 ppb (2) 5.0 μg/m3 (5) 2.8 μg/m3 (12) 26.0
 
Jan. 19, 2020, 9 p.m. 2.2 ppb (2) -0.3 ppb (0) 2.0 ppb (2) 3.0 ppb (3) N/A 0.0 ppb (0) 35.0 ppb (27) 0.15 ppb (2) 3.0 μg/m3 (3) 2.4 μg/m3 (10) 27.0
 
Jan. 19, 2020, 8 p.m. 2.0 ppb (2) -0.1 ppb (0) 2.0 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (28) 0.15 ppb (2) 3.0 μg/m3 (3) 2.3 μg/m3 (10) 28.0
 
Jan. 19, 2020, 7 p.m. 2.3 ppb (2) 0.1 ppb (0) 2.0 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (28) 0.16 ppb (2) 4.0 μg/m3 (4) 2.2 μg/m3 (9) 28.0
 
Jan. 19, 2020, 6 p.m. 2.1 ppb (2) 0.1 ppb (0) 2.0 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) 0.16 ppb (2) 4.0 μg/m3 (4) 2.3 μg/m3 (10) 27.0
 
Jan. 19, 2020, 5 p.m. 2.5 ppb (2) 0.2 ppb (0) 2.0 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (25) 0.16 ppb (2) 4.0 μg/m3 (4) 2.5 μg/m3 (10) 25.0
 
Jan. 19, 2020, 4 p.m. 2.7 ppb (3) 0.3 ppb (0) 2.0 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) 2.3 μg/m3 (10) 24.0
 
Jan. 19, 2020, 3 p.m. 3.0 ppb (3) 0.1 ppb (0) 3.0 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (22) 0.16 ppb (2) 4.0 μg/m3 (4) 2.2 μg/m3 (9) 22.0
 
Jan. 19, 2020, 2 p.m. 2.6 ppb (2) -0.2 ppb (0) 2.0 ppb (2) 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (22) 0.16 ppb (2) 4.0 μg/m3 (4) 2.1 μg/m3 (9) 22.0
 
Jan. 19, 2020, 1 p.m. 2.1 ppb (2) -0.5 ppb (0) 2.0 ppb (2) 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (24) 0.15 ppb (2) 4.0 μg/m3 (4) 1.9 μg/m3 (8) 24.0
 
Jan. 19, 2020, noon 3.1 ppb (3) -0.4 ppb (0) 3.0 ppb (3) 4.0 ppb (4) N/A 0.0 ppb (0) 23.0 ppb (18) 0.16 ppb (2) 7.0 μg/m3 (6) 3.6 μg/m3 (15) 18.0
 
Jan. 19, 2020, 11 a.m. 2.7 ppb (3) 0.0 ppb (0) 2.0 ppb (2) 3.0 ppb (3) N/A 0.0 ppb (0) 23.0 ppb (18) 0.16 ppb (2) 8.0 μg/m3 (7) 4.4 μg/m3 (18) 18.0
 
Jan. 19, 2020, 10 a.m. 2.1 ppb (2) 0.0 ppb (0) 1.0 ppb (1) 2.0 ppb (2) N/A 0.0 ppb (0) 24.0 ppb (18) 0.17 ppb (2) 10.0 μg/m3 (9) 5.2 μg/m3 (22) 22.0
 
Jan. 19, 2020, 9 a.m. 1.8 ppb (2) -0.3 ppb (0) 1.0 ppb (1) 2.0 ppb (2) N/A 0.0 ppb (0) 23.0 ppb (18) 0.18 ppb (2) 10.0 μg/m3 (9) 5.3 μg/m3 (22) 22.0
 
Jan. 19, 2020, 8 a.m. 5.1 ppb (5) 0.1 ppb (0) 4.0 ppb (4) 5.0 ppb (5) N/A 0.0 ppb (0) 17.0 ppb (13) 0.23 ppb (3) 10.0 μg/m3 (9) 5.6 μg/m3 (23) 23.0
 
Jan. 19, 2020, 7 a.m. 15.9 ppb (15) 3.2 ppb (3) 17.0 ppb (16) 13.0 ppb (12) N/A 0.0 ppb (0) 1.0 ppb (1) 0.43 ppb (5) 14.0 μg/m3 (13) 7.3 μg/m3 (30) 30.0
 
Jan. 19, 2020, 6 a.m. 17.4 ppb (16) 1.9 ppb (2) 18.0 ppb (17) 16.0 ppb (15) N/A 0.0 ppb (0) 0.0 ppb (0) 0.39 ppb (4) 11.0 μg/m3 (10) 6.7 μg/m3 (28) 28.0
 
Jan. 19, 2020, 5 a.m. 17.3 ppb (16) 0.8 ppb (1) 17.0 ppb (16) 17.0 ppb (16) N/A 0.0 ppb (0) 1.0 ppb (1) 0.38 ppb (4) 9.0 μg/m3 (8) 6.1 μg/m3 (25) 25.0
 
Jan. 19, 2020, 4 a.m. 17.7 ppb (16) 0.5 ppb (0) 17.0 ppb (16) 17.0 ppb (16) N/A 0.0 ppb (0) 2.0 ppb (2) 0.38 ppb (4) N/A N/A 16.0
 
Jan. 19, 2020, 3 a.m. 19.5 ppb (18) 2.6 ppb (2) 20.0 ppb (19) 17.0 ppb (16) N/A 0.0 ppb (0) 1.0 ppb (1) 0.38 ppb (4) 13.0 μg/m3 (12) 9.9 μg/m3 (41) 41.0
 
Jan. 19, 2020, 2 a.m. 20.1 ppb (19) 2.7 ppb (3) 20.0 ppb (19) 18.0 ppb (17) N/A 0.0 ppb (0) 0.0 ppb (0) 0.38 ppb (4) 14.0 μg/m3 (13) 10.9 μg/m3 (45) 45.0
 
Jan. 19, 2020, 1 a.m. 16.8 ppb (16) 0.6 ppb (1) 17.0 ppb (16) 16.0 ppb (15) N/A 0.0 ppb (0) 3.0 ppb (2) 0.34 ppb (4) 15.0 μg/m3 (14) 11.3 μg/m3 (47) 47.0
 
Jan. 19, 2020, midnight 14.4 ppb (13) 0.4 ppb (0) 15.0 ppb (14) 14.0 ppb (13) N/A 0.0 ppb (0) 4.0 ppb (3) 0.33 ppb (4) 17.0 μg/m3 (15) 11.0 μg/m3 (46) 46.0
 
Jan. 18, 2020, 11 p.m. 6.5 ppb (6) -0.1 ppb (0) 7.0 ppb (6) 7.0 ppb (6) N/A 0.0 ppb (0) 11.0 ppb (8) 0.22 ppb (2) 15.0 μg/m3 (14) 9.2 μg/m3 (38) 38.0
 
Jan. 18, 2020, 10 p.m. 4.1 ppb (4) -0.2 ppb (0) 4.0 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 15.0 ppb (12) 0.2 ppb (2) 14.0 μg/m3 (13) 8.5 μg/m3 (35) 35.0
 
Jan. 18, 2020, 9 p.m. 4.7 ppb (4) -0.3 ppb (0) 4.0 ppb (4) 5.0 ppb (5) N/A 0.0 ppb (0) 17.0 ppb (13) 0.19 ppb (2) 13.0 μg/m3 (12) 7.7 μg/m3 (32) 32.0
 
Jan. 18, 2020, 8 p.m. 5.0 ppb (5) -0.1 ppb (0) 5.0 ppb (5) 5.0 ppb (5) N/A 0.0 ppb (0) 20.0 ppb (15) 0.19 ppb (2) 13.0 μg/m3 (12) 7.5 μg/m3 (31) 31.0
 
Jan. 18, 2020, 7 p.m. 5.0 ppb (5) -0.1 ppb (0) 5.0 ppb (5) 5.0 ppb (5) N/A 0.0 ppb (0) 23.0 ppb (18) 0.17 ppb (2) 15.0 μg/m3 (14) 7.8 μg/m3 (32) 32.0
 
Jan. 18, 2020, 6 p.m. 3.4 ppb (3) -0.4 ppb (0) 3.0 ppb (3) 4.0 ppb (4) N/A 0.0 ppb (0) 27.0 ppb (21) 0.15 ppb (2) 14.0 μg/m3 (13) 7.2 μg/m3 (30) 30.0
 
Jan. 18, 2020, 5 p.m. 1.8 ppb (2) -0.4 ppb (0) 1.0 ppb (1) 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (22) 0.14 ppb (2) 13.0 μg/m3 (12) 5.9 μg/m3 (25) 25.0
 
Jan. 18, 2020, 4 p.m. 1.3 ppb (1) -0.5 ppb (0) 1.0 ppb (1) 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) 0.14 ppb (2) 12.0 μg/m3 (11) 5.6 μg/m3 (23) 23.0
 
Jan. 18, 2020, 3 p.m. 1.9 ppb (2) -0.3 ppb (0) 2.0 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (22) 0.14 ppb (2) 10.0 μg/m3 (9) 5.8 μg/m3 (24) 24.0
 
Jan. 18, 2020, 2 p.m. 2.3 ppb (2) -0.3 ppb (0) 2.0 ppb (2) 3.0 ppb (3) N/A 0.0 ppb (0) 28.0 ppb (22) 0.14 ppb (2) 9.0 μg/m3 (8) 5.8 μg/m3 (24) 24.0
 
Jan. 18, 2020, 1 p.m. 2.2 ppb (2) -0.5 ppb (0) 2.0 ppb (2) 3.0 ppb (3) N/A 0.0 ppb (0) 28.0 ppb (22) 0.14 ppb (2) 9.0 μg/m3 (8) 5.8 μg/m3 (24) 24.0
 
Jan. 18, 2020, noon 2.1 ppb (2) -0.5 ppb (0) 2.0 ppb (2) 3.0 ppb (3) N/A 0.0 ppb (0) 28.0 ppb (22) 0.14 ppb (2) 9.0 μg/m3 (8) 5.9 μg/m3 (25) 25.0
 
Jan. 18, 2020, 11 a.m. 1.9 ppb (2) -0.5 ppb (0) 2.0 ppb (2) 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (22) 0.14 ppb (2) 10.0 μg/m3 (9) 6.1 μg/m3 (25) 25.0
 
Jan. 18, 2020, 10 a.m. 2.0 ppb (2) -0.6 ppb (0) 2.0 ppb (2) 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (22) 0.14 ppb (2) 9.0 μg/m3 (8) 6.2 μg/m3 (26) 26.0
 
Jan. 18, 2020, 9 a.m. 2.0 ppb (2) -0.6 ppb (0) 2.0 ppb (2) 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (23) 0.14 ppb (2) 9.0 μg/m3 (8) 5.7 μg/m3 (24) 24.0
 
Jan. 18, 2020, 8 a.m. 2.0 ppb (2) -0.6 ppb (0) 2.0 ppb (2) 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (23) 0.14 ppb (2) 9.0 μg/m3 (8) 5.5 μg/m3 (23) 23.0
 
Jan. 18, 2020, 7 a.m. 2.0 ppb (2) -0.5 ppb (0) 2.0 ppb (2) 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (24) 0.14 ppb (2) 9.0 μg/m3 (8) 5.2 μg/m3 (22) 24.0
 
Jan. 18, 2020, 6 a.m. 2.7 ppb (3) -0.6 ppb (0) 3.0 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (24) 0.17 ppb (2) 8.0 μg/m3 (7) 4.9 μg/m3 (20) 24.0
 
Jan. 18, 2020, 5 a.m. 2.3 ppb (2) -0.6 ppb (0) 2.0 ppb (2) 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (24) 0.16 ppb (2) 7.0 μg/m3 (6) 4.2 μg/m3 (18) 24.0
 
Jan. 18, 2020, 4 a.m. 2.2 ppb (2) -0.6 ppb (0) 2.0 ppb (2) 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (25) 0.16 ppb (2) N/A N/A 25.0
 
Jan. 18, 2020, 3 a.m. 2.6 ppb (2) -0.6 ppb (0) 2.0 ppb (2) 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (25) 0.17 ppb (2) 6.0 μg/m3 (5) 3.6 μg/m3 (15) 25.0
 
Jan. 18, 2020, 2 a.m. 2.6 ppb (2) -0.6 ppb (0) 2.0 ppb (2) 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (25) 0.17 ppb (2) 5.0 μg/m3 (5) 3.4 μg/m3 (14) 25.0
 
Jan. 18, 2020, 1 a.m. 2.9 ppb (3) -0.5 ppb (0) 3.0 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (25) 0.17 ppb (2) 6.0 μg/m3 (5) 3.7 μg/m3 (15) 25.0
 
Jan. 18, 2020, midnight 4.1 ppb (4) -0.5 ppb (0) 4.0 ppb (4) 5.0 ppb (5) N/A 0.0 ppb (0) 32.0 ppb (25) 0.17 ppb (2) 6.0 μg/m3 (5) 3.4 μg/m3 (14) 25.0
 
Jan. 17, 2020, 11 p.m. 3.7 ppb (3) -0.4 ppb (0) 3.0 ppb (3) 4.0 ppb (4) N/A 0.0 ppb (0) 33.0 ppb (25) 0.17 ppb (2) 6.0 μg/m3 (5) 3.5 μg/m3 (15) 25.0
 
Jan. 17, 2020, 10 p.m. 3.5 ppb (3) -0.4 ppb (0) 3.0 ppb (3) 4.0 ppb (4) N/A 0.0 ppb (0) 33.0 ppb (25) 0.18 ppb (2) 6.0 μg/m3 (5) 4.1 μg/m3 (17) 25.0
 
Jan. 17, 2020, 9 p.m. 3.0 ppb (3) -0.3 ppb (0) 3.0 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (26) 0.17 ppb (2) 6.0 μg/m3 (5) 3.5 μg/m3 (15) 26.0
 
Jan. 17, 2020, 8 p.m. 1.9 ppb (2) -0.3 ppb (0) 1.0 ppb (1) 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (28) 0.16 ppb (2) 7.0 μg/m3 (6) 3.4 μg/m3 (14) 28.0
 
Jan. 17, 2020, 7 p.m. 2.1 ppb (2) -0.1 ppb (0) 2.0 ppb (2) 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (26) 0.17 ppb (2) 7.0 μg/m3 (6) 3.6 μg/m3 (15) 26.0
 
Jan. 17, 2020, 6 p.m. 2.7 ppb (3) 0.2 ppb (0) 2.0 ppb (2) 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (26) 0.18 ppb (2) 6.0 μg/m3 (5) 2.9 μg/m3 (12) 26.0
 
Jan. 17, 2020, 5 p.m. 4.1 ppb (4) 1.4 ppb (1) 2.0 ppb (2) 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (25) 0.14 ppb (2) 6.0 μg/m3 (5) 3.2 μg/m3 (13) 25.0
 
Jan. 17, 2020, 4 p.m. 3.6 ppb (3) 1.0 ppb (1) 2.0 ppb (2) 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (25) 0.14 ppb (2) 6.0 μg/m3 (5) 3.3 μg/m3 (14) 25.0
 
Jan. 17, 2020, 3 p.m. 5.6 ppb (5) 0.9 ppb (1) 4.0 ppb (4) 5.0 ppb (5) N/A 0.0 ppb (0) 28.0 ppb (22) 0.16 ppb (2) 6.0 μg/m3 (5) 3.6 μg/m3 (15) 22.0
 
Jan. 17, 2020, 2 p.m. 32.2 ppb (30) 14.6 ppb (14) 33.0 ppb (31) 18.0 ppb (17) N/A 0.0 ppb (0) 10.0 ppb (8) 0.33 ppb (4) 10.0 μg/m3 (9) 4.7 μg/m3 (20) 31.0
 
Jan. 17, 2020, 1 p.m. 67.1 ppb (64) 44.2 ppb (41) 70.0 ppb (67) 23.0 ppb (21) N/A 0.0 ppb (0) 0.0 ppb (0) 0.39 ppb (4) 9.0 μg/m3 (8) 4.8 μg/m3 (20) 67.0
 
Jan. 17, 2020, noon 67.4 ppb (64) 40.6 ppb (38) 86.0 ppb (84) 27.0 ppb (25) N/A 0.0 ppb (0) 0.0 ppb (0) 0.35 ppb (4) 8.0 μg/m3 (7) 4.7 μg/m3 (20) 84.0
 
Jan. 17, 2020, 11 a.m. 19.6 ppb (18) 2.4 ppb (2) 21.0 ppb (19) 17.0 ppb (16) N/A 0.0 ppb (0) 8.0 ppb (6) 0.21 ppb (2) 7.0 μg/m3 (6) 4.0 μg/m3 (17) 19.0
 
Jan. 17, 2020, 10 a.m. 13.5 ppb (12) 0.3 ppb (0) 14.0 ppb (13) 13.0 ppb (12) N/A 0.0 ppb (0) 12.0 ppb (9) 0.21 ppb (2) 7.0 μg/m3 (6) 4.0 μg/m3 (17) 17.0
 
Jan. 17, 2020, 9 a.m. 9.2 ppb (9) 0.5 ppb (0) 9.0 ppb (8) 9.0 ppb (8) N/A 0.0 ppb (0) 18.0 ppb (14) 0.18 ppb (2) 7.0 μg/m3 (6) 3.9 μg/m3 (16) 16.0
 
Jan. 17, 2020, 8 a.m. 9.1 ppb (8) 0.8 ppb (1) 8.0 ppb (7) 8.0 ppb (7) N/A 0.0 ppb (0) 19.0 ppb (15) 0.18 ppb (2) 8.0 μg/m3 (7) 4.4 μg/m3 (18) 18.0
 
Jan. 17, 2020, 7 a.m. 7.1 ppb (7) 0.9 ppb (1) 6.0 ppb (6) 6.0 ppb (6) N/A 0.0 ppb (0) 23.0 ppb (18) 0.18 ppb (2) 8.0 μg/m3 (7) 4.3 μg/m3 (18) 18.0
 
Jan. 17, 2020, 6 a.m. 7.1 ppb (7) 1.0 ppb (1) 6.0 ppb (6) 6.0 ppb (6) N/A 0.0 ppb (0) 24.0 ppb (18) 0.15 ppb (2) 8.0 μg/m3 (7) 4.4 μg/m3 (18) 18.0
 
Jan. 17, 2020, 5 a.m. 9.5 ppb (9) 1.2 ppb (1) 8.0 ppb (7) 8.0 ppb (7) N/A 0.0 ppb (0) 22.0 ppb (17) 0.17 ppb (2) 8.0 μg/m3 (7) 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2020, 4 a.m. 7.9 ppb (7) 1.3 ppb (1) 6.0 ppb (6) 7.0 ppb (6) N/A 0.0 ppb (0) 24.0 ppb (18) 0.16 ppb (2) N/A N/A 18.0
 
Jan. 17, 2020, 3 a.m. 7.6 ppb (7) 1.4 ppb (1) 6.0 ppb (6) 6.0 ppb (6) N/A 0.0 ppb (0) 25.0 ppb (19) 0.15 ppb (2) 8.0 μg/m3 (7) 4.8 μg/m3 (20) 20.0
 
Jan. 17, 2020, 2 a.m. 6.9 ppb (6) 1.0 ppb (1) 5.0 ppb (5) 6.0 ppb (6) N/A 0.0 ppb (0) 26.0 ppb (20) 0.16 ppb (2) 9.0 μg/m3 (8) 5.4 μg/m3 (23) 23.0
 
Jan. 17, 2020, 1 a.m. 7.6 ppb (7) 0.6 ppb (1) 6.0 ppb (6) 7.0 ppb (6) N/A 0.0 ppb (0) 24.0 ppb (18) 0.17 ppb (2) 9.0 μg/m3 (8) 5.9 μg/m3 (25) 25.0
 
Jan. 17, 2020, midnight 7.3 ppb (7) 0.3 ppb (0) 6.0 ppb (6) 7.0 ppb (6) N/A 0.0 ppb (0) 26.0 ppb (20) 0.16 ppb (2) 9.0 μg/m3 (8) 5.6 μg/m3 (23) 23.0
 
Jan. 16, 2020, 11 p.m. 8.6 ppb (8) 0.0 ppb (0) 8.0 ppb (7) 9.0 ppb (8) N/A 0.0 ppb (0) 23.0 ppb (18) 0.19 ppb (2) 10.0 μg/m3 (9) 6.1 μg/m3 (25) 25.0
 
Jan. 16, 2020, 10 p.m. 8.1 ppb (8) -0.3 ppb (0) 8.0 ppb (7) 9.0 ppb (8) N/A 0.0 ppb (0) 24.0 ppb (18) 0.18 ppb (2) 10.0 μg/m3 (9) 6.1 μg/m3 (25) 25.0
 
Jan. 16, 2020, 9 p.m. 6.9 ppb (6) 0.0 ppb (0) 6.0 ppb (6) 7.0 ppb (6) N/A 0.0 ppb (0) 27.0 ppb (21) 0.17 ppb (2) 10.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2020, 8 p.m. 5.3 ppb (5) 0.2 ppb (0) 4.0 ppb (4) 5.0 ppb (5) N/A 0.0 ppb (0) 30.0 ppb (23) 0.16 ppb (2) 11.0 μg/m3 (10) 6.1 μg/m3 (25) 25.0
 
Jan. 16, 2020, 7 p.m. 5.6 ppb (5) 0.7 ppb (1) 5.0 ppb (5) 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (24) 0.17 ppb (2) 10.0 μg/m3 (9) 5.9 μg/m3 (25) 25.0
 
Jan. 16, 2020, 6 p.m. 7.2 ppb (7) 1.1 ppb (1) 6.0 ppb (6) 6.0 ppb (6) N/A 0.0 ppb (0) 29.0 ppb (22) 0.18 ppb (2) 10.0 μg/m3 (9) 5.9 μg/m3 (25) 25.0
 
Jan. 16, 2020, 5 p.m. 6.3 ppb (6) 1.1 ppb (1) 6.0 ppb (6) 5.0 ppb (5) N/A 0.0 ppb (0) 29.0 ppb (22) 0.17 ppb (2) 10.0 μg/m3 (9) 5.9 μg/m3 (25) 25.0
 
Jan. 16, 2020, 4 p.m. 7.9 ppb (7) 1.7 ppb (2) 8.0 ppb (7) 6.0 ppb (6) N/A 0.0 ppb (0) 25.0 ppb (19) 0.18 ppb (2) 12.0 μg/m3 (11) 6.3 μg/m3 (26) 26.0
 
Jan. 16, 2020, 3 p.m. 7.5 ppb (7) 1.5 ppb (1) 7.0 ppb (6) 6.0 ppb (6) N/A 0.0 ppb (0) 21.0 ppb (16) 0.18 ppb (2) 13.0 μg/m3 (12) 7.2 μg/m3 (30) 30.0
 
Jan. 16, 2020, 2 p.m. 8.2 ppb (8) 1.2 ppb (1) 8.0 ppb (7) 7.0 ppb (6) N/A 0.0 ppb (0) 19.0 ppb (15) 0.18 ppb (2) 12.0 μg/m3 (11) 6.8 μg/m3 (28) 28.0
 
Jan. 16, 2020, 1 p.m. 7.3 ppb (7) 0.3 ppb (0) 7.0 ppb (6) 7.0 ppb (6) N/A 0.0 ppb (0) 18.0 ppb (14) 0.17 ppb (2) 10.0 μg/m3 (9) 4.3 μg/m3 (18) 18.0
 
Jan. 16, 2020, noon 7.9 ppb (7) -0.1 ppb (0) 7.0 ppb (6) 8.0 ppb (7) N/A 0.0 ppb (0) 18.0 ppb (14) 0.16 ppb (2) 10.0 μg/m3 (9) 3.5 μg/m3 (15) 15.0
 
Jan. 16, 2020, 11 a.m. 16.5 ppb (15) 0.2 ppb (0) 16.0 ppb (15) 16.0 ppb (15) N/A 0.0 ppb (0) 9.0 ppb (7) 0.18 ppb (2) 11.0 μg/m3 (10) 3.8 μg/m3 (16) 16.0
 
Jan. 16, 2020, 10 a.m. 11.7 ppb (11) -0.1 ppb (0) 13.0 ppb (12) 12.0 ppb (11) N/A 0.0 ppb (0) 10.0 ppb (8) 0.15 ppb (2) 11.0 μg/m3 (10) 4.0 μg/m3 (17) 17.0
 
Jan. 16, 2020, 9 a.m. 4.3 ppb (4) -0.4 ppb (0) 4.0 ppb (4) 5.0 ppb (5) N/A 0.0 ppb (0) 17.0 ppb (13) 0.13 ppb (1) 9.0 μg/m3 (8) 3.5 μg/m3 (15) 15.0
 
Jan. 16, 2020, 8 a.m. 2.2 ppb (2) -0.5 ppb (0) 2.0 ppb (2) 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (17) 0.12 ppb (1) 10.0 μg/m3 (9) 3.4 μg/m3 (14) 17.0
 
Jan. 16, 2020, 7 a.m. 8.8 ppb (8) -0.3 ppb (0) 10.0 ppb (9) 9.0 ppb (8) N/A 0.0 ppb (0) 7.0 ppb (5) 0.15 ppb (2) 13.0 μg/m3 (12) 6.9 μg/m3 (29) 29.0
 
Jan. 16, 2020, 6 a.m. 6.1 ppb (6) -0.4 ppb (0) 6.0 ppb (6) 7.0 ppb (6) N/A 0.0 ppb (0) 9.0 ppb (7) 0.16 ppb (2) 16.0 μg/m3 (15) 7.6 μg/m3 (32) 32.0
 
Jan. 16, 2020, 5 a.m. 9.8 ppb (9) -0.3 ppb (0) 10.0 ppb (9) 10.0 ppb (9) N/A 0.0 ppb (0) 5.0 ppb (4) 0.2 ppb (2) 19.0 μg/m3 (17) 7.9 μg/m3 (33) 33.0
 
Jan. 16, 2020, 4 a.m. 7.0 ppb (6) -0.4 ppb (0) 8.0 ppb (7) 8.0 ppb (7) N/A 0.0 ppb (0) 6.0 ppb (5) 0.19 ppb (2) N/A N/A 7.0
 
Jan. 16, 2020, 3 a.m. 5.6 ppb (5) -0.4 ppb (0) 6.0 ppb (6) 6.0 ppb (6) N/A 0.0 ppb (0) 7.0 ppb (5) 0.19 ppb (2) 19.0 μg/m3 (17) 7.5 μg/m3 (31) 31.0
 
Jan. 16, 2020, 2 a.m. 6.6 ppb (6) -0.4 ppb (0) 6.0 ppb (6) 7.0 ppb (6) N/A 0.0 ppb (0) 7.0 ppb (5) 0.21 ppb (2) 16.0 μg/m3 (15) 6.9 μg/m3 (29) 29.0
 
Jan. 16, 2020, 1 a.m. 6.8 ppb (6) -0.4 ppb (0) 7.0 ppb (6) 7.0 ppb (6) N/A 0.0 ppb (0) 7.0 ppb (5) 0.23 ppb (3) 16.0 μg/m3 (15) 7.0 μg/m3 (29) 29.0
 
Jan. 16, 2020, midnight 6.8 ppb (6) -0.5 ppb (0) 7.0 ppb (6) 7.0 ppb (6) N/A 0.0 ppb (0) 10.0 ppb (8) 0.2 ppb (2) 12.0 μg/m3 (11) 5.8 μg/m3 (24) 24.0
 
Jan. 15, 2020, 11 p.m. 6.2 ppb (6) -0.5 ppb (0) 6.0 ppb (6) 7.0 ppb (6) N/A 0.0 ppb (0) 13.0 ppb (10) 0.19 ppb (2) 14.0 μg/m3 (13) 5.8 μg/m3 (24) 24.0
 
Jan. 15, 2020, 10 p.m. 7.1 ppb (7) -0.3 ppb (0) 7.0 ppb (6) 7.0 ppb (6) N/A 0.0 ppb (0) 15.0 ppb (12) 0.19 ppb (2) 13.0 μg/m3 (12) 5.9 μg/m3 (25) 25.0
 
Jan. 15, 2020, 9 p.m. 7.6 ppb (7) 0.1 ppb (0) 7.0 ppb (6) 8.0 ppb (7) N/A 0.0 ppb (0) 17.0 ppb (13) 0.18 ppb (2) 10.0 μg/m3 (9) 4.4 μg/m3 (18) 18.0
 
Jan. 15, 2020, 8 p.m. 3.8 ppb (4) -0.2 ppb (0) 3.0 ppb (3) 4.0 ppb (4) N/A 0.0 ppb (0) 22.0 ppb (17) 0.16 ppb (2) 7.0 μg/m3 (6) 3.2 μg/m3 (13) 17.0
 
Jan. 15, 2020, 7 p.m. 7.7 ppb (7) 0.8 ppb (1) 7.0 ppb (6) 7.0 ppb (6) N/A 0.0 ppb (0) 22.0 ppb (17) 0.19 ppb (2) 8.0 μg/m3 (7) 2.8 μg/m3 (12) 17.0
 
Jan. 15, 2020, 6 p.m. 15.5 ppb (14) 4.4 ppb (4) 16.0 ppb (15) 11.0 ppb (10) N/A 0.0 ppb (0) 18.0 ppb (14) 0.28 ppb (3) 7.0 μg/m3 (6) 3.3 μg/m3 (14) 15.0
 
Jan. 15, 2020, 5 p.m. 13.6 ppb (13) 4.6 ppb (4) 14.0 ppb (13) 9.0 ppb (8) N/A 0.0 ppb (0) 17.0 ppb (13) 0.22 ppb (2) 8.0 μg/m3 (7) 4.2 μg/m3 (18) 18.0
 
Jan. 15, 2020, 4 p.m. 17.7 ppb (16) 6.4 ppb (6) 18.0 ppb (17) 11.0 ppb (10) N/A 0.0 ppb (0) 12.0 ppb (9) 0.29 ppb (3) 10.0 μg/m3 (9) 5.7 μg/m3 (24) 24.0
 
Jan. 15, 2020, 3 p.m. 29.3 ppb (27) 15.2 ppb (14) 30.0 ppb (28) 14.0 ppb (13) N/A 0.0 ppb (0) 4.0 ppb (3) 0.34 ppb (4) 9.0 μg/m3 (8) 4.8 μg/m3 (20) 28.0
 
Jan. 15, 2020, 2 p.m. 50.4 ppb (47) 35.1 ppb (32) 50.0 ppb (46) 15.0 ppb (14) N/A 0.0 ppb (0) 0.0 ppb (0) 0.42 ppb (5) 11.0 μg/m3 (10) 4.7 μg/m3 (20) 47.0
 
Jan. 15, 2020, 1 p.m. 72.3 ppb (69) 57.5 ppb (54) 77.0 ppb (74) 15.0 ppb (14) N/A 0.0 ppb (0) 0.0 ppb (0) 0.44 ppb (5) 11.0 μg/m3 (10) 4.5 μg/m3 (19) 74.0
 
Jan. 15, 2020, noon 61.6 ppb (58) 46.5 ppb (43) 72.0 ppb (69) 15.0 ppb (14) N/A 0.0 ppb (0) 0.0 ppb (0) 0.37 ppb (4) 8.0 μg/m3 (7) 3.5 μg/m3 (15) 69.0
 
Jan. 15, 2020, 11 a.m. 49.5 ppb (46) 35.3 ppb (33) 68.0 ppb (65) 14.0 ppb (13) N/A 0.0 ppb (0) 0.0 ppb (0) 0.34 ppb (4) 8.0 μg/m3 (7) 3.2 μg/m3 (13) 65.0