AQSQID: 060130002

Site Name: Concord

Location: Concord, CA

Reporting: True, Located: True

Current AQI: 52.0

Concord CA, US: 37.9383, -122.025

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Nov. 17, 2019, 8 a.m. 18.0 ppb (17) 2.0 ppb (2) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 1.0 ppb (1) 0.48 ppb (5) N/A 13.0 μg/m3 (52) 52.0
 
Nov. 17, 2019, 7 a.m. 17.4 ppb (16) 1.2 ppb (1) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 3.0 ppb (2) 0.47 ppb (5) N/A 15.0 μg/m3 (56) 56.0
 
Nov. 17, 2019, 6 a.m. 18.2 ppb (17) 1.5 ppb (1) N/A 17.0 ppb (16) N/A 1.0 ppb (1) 4.0 ppb (3) 0.43 ppb (5) N/A 17.0 μg/m3 (61) 61.0
 
Nov. 17, 2019, 5 a.m. 16.0 ppb (15) 0.6 ppb (1) N/A 15.0 ppb (14) N/A 1.0 ppb (1) 9.0 ppb (7) 0.4 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 17, 2019, 4 a.m. 12.0 ppb (11) 0.2 ppb (0) N/A 12.0 ppb (11) N/A 1.0 ppb (1) 14.0 ppb (11) 0.32 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 17, 2019, 3 a.m. 11.7 ppb (11) 0.2 ppb (0) N/A 12.0 ppb (11) N/A 1.0 ppb (1) 16.0 ppb (12) 0.33 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 17, 2019, 2 a.m. 20.1 ppb (19) 0.6 ppb (1) N/A 20.0 ppb (19) N/A 1.0 ppb (1) 10.0 ppb (8) 0.47 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 17, 2019, 1 a.m. 20.4 ppb (19) 0.3 ppb (0) N/A 20.0 ppb (19) N/A 2.0 ppb (3) 14.0 ppb (11) 0.45 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 17, 2019, midnight 8.7 ppb (8) 0.3 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 32.0 ppb (25) 0.26 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 16, 2019, 11 p.m. 3.8 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 41.0 ppb (32) 0.18 ppb (2) N/A 7.0 μg/m3 (29) 32.0
 
Nov. 16, 2019, 10 p.m. 4.6 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 40.0 ppb (31) 0.19 ppb (2) N/A 7.0 μg/m3 (29) 31.0
 
Nov. 16, 2019, 9 p.m. 5.4 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 38.0 ppb (29) 0.2 ppb (2) N/A 6.0 μg/m3 (25) 29.0
 
Nov. 16, 2019, 8 p.m. 6.9 ppb (6) 1.4 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 34.0 ppb (26) 0.22 ppb (2) N/A 4.0 μg/m3 (17) 26.0
 
Nov. 16, 2019, 7 p.m. 8.3 ppb (8) 2.1 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 26.0 ppb (20) 0.26 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 16, 2019, 6 p.m. 8.6 ppb (8) 2.7 ppb (3) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 18.0 ppb (14) 0.26 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Nov. 16, 2019, 5 p.m. 10.6 ppb (10) 4.1 ppb (4) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 10.0 ppb (8) 0.28 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Nov. 16, 2019, 4 p.m. 13.6 ppb (13) 6.1 ppb (6) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 6.0 ppb (5) 0.28 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 16, 2019, 3 p.m. 22.2 ppb (21) 13.1 ppb (12) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 1.0 ppb (1) 0.28 ppb (3) N/A 4.0 μg/m3 (17) 21.0
 
Nov. 16, 2019, 2 p.m. 17.6 ppb (16) 8.3 ppb (8) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 0.0 ppb (0) 0.28 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Nov. 16, 2019, 1 p.m. 13.7 ppb (13) 4.4 ppb (4) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 0.0 ppb (0) 0.28 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 16, 2019, noon 13.9 ppb (13) 4.0 ppb (4) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 0.0 ppb (0) 0.31 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 16, 2019, 11 a.m. 11.6 ppb (11) 2.2 ppb (2) N/A 9.0 ppb (8) N/A 2.0 ppb (3) 1.0 ppb (1) 0.28 ppb (3) N/A 2.0 μg/m3 (8) 11.0
 
Nov. 16, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Nov. 16, 2019, 9 a.m. 9.9 ppb (9) 0.3 ppb (0) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 6.0 ppb (5) 0.27 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 16, 2019, 8 a.m. 9.8 ppb (9) 0.3 ppb (0) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 7.0 ppb (5) 0.27 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 16, 2019, 7 a.m. 12.5 ppb (12) 1.6 ppb (1) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 7.0 ppb (5) 0.23 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 16, 2019, 6 a.m. 17.2 ppb (16) 2.5 ppb (2) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 5.0 ppb (4) 0.28 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 16, 2019, 5 a.m. 15.7 ppb (15) 0.6 ppb (1) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 5.0 ppb (4) 0.36 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 16, 2019, 4 a.m. 13.0 ppb (12) 0.3 ppb (0) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 11.0 ppb (8) 0.32 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 16, 2019, 3 a.m. 12.7 ppb (12) 0.8 ppb (1) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 14.0 ppb (11) 0.31 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Nov. 16, 2019, 2 a.m. 7.9 ppb (7) 0.3 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 24.0 ppb (18) 0.23 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 16, 2019, 1 a.m. 10.0 ppb (9) 0.2 ppb (0) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 27.0 ppb (21) 0.27 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 16, 2019, midnight 9.8 ppb (9) 0.5 ppb (0) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 36.0 ppb (28) 0.23 ppb (3) N/A 6.0 μg/m3 (25) 28.0
 
Nov. 15, 2019, 11 p.m. 7.9 ppb (7) 0.7 ppb (1) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 39.0 ppb (30) 0.21 ppb (2) N/A 6.0 μg/m3 (25) 30.0
 
Nov. 15, 2019, 10 p.m. 8.4 ppb (8) 1.2 ppb (1) N/A 7.0 ppb (6) N/A 2.0 ppb (3) 39.0 ppb (30) 0.21 ppb (2) N/A 7.0 μg/m3 (29) 30.0
 
Nov. 15, 2019, 9 p.m. 6.7 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 39.0 ppb (30) 0.19 ppb (2) N/A 7.0 μg/m3 (29) 30.0
 
Nov. 15, 2019, 8 p.m. 8.9 ppb (8) 1.6 ppb (1) N/A 7.0 ppb (6) N/A 2.0 ppb (3) 36.0 ppb (28) 0.2 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Nov. 15, 2019, 7 p.m. 9.5 ppb (9) 2.0 ppb (2) N/A 8.0 ppb (7) N/A 2.0 ppb (3) 33.0 ppb (25) 0.21 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 15, 2019, 6 p.m. 9.0 ppb (8) 2.0 ppb (2) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 30.0 ppb (23) 0.21 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 15, 2019, 5 p.m. 9.9 ppb (9) 2.3 ppb (2) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 26.0 ppb (20) 0.2 ppb (2) N/A 4.0 μg/m3 (17) 20.0
 
Nov. 15, 2019, 4 p.m. 17.8 ppb (16) 5.3 ppb (5) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 15.0 ppb (12) 0.27 ppb (3) N/A 3.0 μg/m3 (12) 16.0
 
Nov. 15, 2019, 3 p.m. 27.9 ppb (26) 9.4 ppb (9) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 4.0 ppb (3) 0.35 ppb (4) N/A 5.0 μg/m3 (21) 26.0
 
Nov. 15, 2019, 2 p.m. 15.9 ppb (15) 0.8 ppb (1) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 9.0 ppb (7) 0.23 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 15, 2019, 1 p.m. 7.3 ppb (7) 0.2 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 21.0 ppb (16) 0.15 ppb (2) N/A 2.0 μg/m3 (8) 16.0
 
Nov. 15, 2019, noon 4.6 ppb (4) 0.1 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 26.0 ppb (20) 0.12 ppb (1) N/A 2.0 μg/m3 (8) 20.0
 
Nov. 15, 2019, 11 a.m. 5.0 ppb (5) 0.2 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 27.0 ppb (21) 0.12 ppb (1) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 15, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Nov. 15, 2019, 9 a.m. 5.2 ppb (5) 0.1 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 26.0 ppb (20) 0.13 ppb (1) N/A 3.0 μg/m3 (12) 20.0
 
Nov. 15, 2019, 8 a.m. 4.2 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (22) 0.12 ppb (1) N/A 5.0 μg/m3 (21) 22.0
 
Nov. 15, 2019, 7 a.m. 4.6 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (22) 0.13 ppb (1) N/A 5.0 μg/m3 (21) 22.0
 
Nov. 15, 2019, 6 a.m. 6.5 ppb (6) 0.2 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 25.0 ppb (19) 0.15 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 15, 2019, 5 a.m. 7.2 ppb (7) 0.2 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 26.0 ppb (20) 0.15 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 15, 2019, 4 a.m. 6.9 ppb (6) 0.2 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 27.0 ppb (21) 0.16 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 15, 2019, 3 a.m. 8.3 ppb (8) 0.2 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 25.0 ppb (19) 0.19 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 15, 2019, 2 a.m. 7.6 ppb (7) 0.2 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 28.0 ppb (22) 0.2 ppb (2) N/A 5.0 μg/m3 (21) 22.0
 
Nov. 15, 2019, 1 a.m. 7.6 ppb (7) 0.2 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 30.0 ppb (23) 0.19 ppb (2) N/A 5.0 μg/m3 (21) 23.0
 
Nov. 15, 2019, midnight 5.3 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 34.0 ppb (26) 0.19 ppb (2) N/A 6.0 μg/m3 (25) 26.0
 
Nov. 14, 2019, 11 p.m. 4.8 ppb (4) 0.4 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 35.0 ppb (27) 0.18 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 14, 2019, 10 p.m. 4.1 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (27) 0.18 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 14, 2019, 9 p.m. 4.7 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 36.0 ppb (28) 0.19 ppb (2) N/A N/A 28.0
 
Nov. 14, 2019, 8 p.m. 4.9 ppb (5) 0.5 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (27) 0.18 ppb (2) N/A 5.0 μg/m3 (21) 27.0
 
Nov. 14, 2019, 7 p.m. 4.9 ppb (5) 0.5 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 36.0 ppb (28) 0.17 ppb (2) N/A 5.0 μg/m3 (21) 28.0
 
Nov. 14, 2019, 6 p.m. 5.5 ppb (5) 0.7 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 36.0 ppb (28) 0.19 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 14, 2019, 5 p.m. 12.0 ppb (11) 2.7 ppb (3) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 25.0 ppb (19) 0.29 ppb (3) N/A 16.0 μg/m3 (59) 59.0
 
Nov. 14, 2019, 4 p.m. 18.9 ppb (18) 4.5 ppb (4) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 14.0 ppb (11) 0.39 ppb (4) N/A 15.0 μg/m3 (56) 56.0
 
Nov. 14, 2019, 3 p.m. 13.9 ppb (13) 1.1 ppb (1) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 15.0 ppb (12) 0.34 ppb (4) N/A 17.0 μg/m3 (61) 61.0
 
Nov. 14, 2019, 2 p.m. 8.8 ppb (8) 0.3 ppb (0) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 20.0 ppb (15) 0.25 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 14, 2019, 1 p.m. 7.3 ppb (7) 0.2 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 22.0 ppb (17) 0.24 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 14, 2019, noon 8.5 ppb (8) 0.2 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 22.0 ppb (17) 0.22 ppb (2) N/A 13.0 μg/m3 (52) 52.0
 
Nov. 14, 2019, 11 a.m. 7.4 ppb (7) 0.2 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 26.0 ppb (20) 0.2 ppb (2) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 14, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (52) 52.0
 
Nov. 14, 2019, 9 a.m. 6.3 ppb (6) 0.1 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 27.0 ppb (21) 0.23 ppb (3) N/A 15.0 μg/m3 (56) 56.0
 
Nov. 14, 2019, 8 a.m. 4.7 ppb (4) 0.1 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 32.0 ppb (25) 0.2 ppb (2) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 14, 2019, 7 a.m. 4.5 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (27) 0.2 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 14, 2019, 6 a.m. 6.6 ppb (6) 0.1 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 32.0 ppb (25) 0.25 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 14, 2019, 5 a.m. 11.3 ppb (10) 0.2 ppb (0) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 25.0 ppb (19) 0.35 ppb (4) N/A 15.0 μg/m3 (56) 56.0
 
Nov. 14, 2019, 4 a.m. 12.0 ppb (11) 0.3 ppb (0) N/A 12.0 ppb (11) N/A 1.0 ppb (1) 26.0 ppb (20) 0.36 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 14, 2019, 3 a.m. 15.7 ppb (15) 0.4 ppb (0) N/A 15.0 ppb (14) N/A 1.0 ppb (1) 23.0 ppb (18) 0.39 ppb (4) N/A 17.0 μg/m3 (61) 61.0
 
Nov. 14, 2019, 2 a.m. 33.3 ppb (31) 1.3 ppb (1) N/A 32.0 ppb (30) N/A 3.0 ppb (4) 9.0 ppb (7) 0.55 ppb (6) N/A 17.0 μg/m3 (61) 61.0
 
Nov. 14, 2019, 1 a.m. 33.5 ppb (31) 1.6 ppb (1) N/A 32.0 ppb (30) N/A 4.0 ppb (6) 13.0 ppb (10) 0.49 ppb (5) N/A 17.0 μg/m3 (61) 61.0
 
Nov. 14, 2019, midnight 27.6 ppb (26) 1.2 ppb (1) N/A 26.0 ppb (24) N/A 3.0 ppb (4) 30.0 ppb (23) 0.46 ppb (5) N/A 16.0 μg/m3 (59) 59.0
 
Nov. 13, 2019, 11 p.m. 18.3 ppb (17) 0.9 ppb (1) N/A 17.0 ppb (16) N/A 2.0 ppb (3) 42.0 ppb (32) 0.41 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 13, 2019, 10 p.m. 18.6 ppb (17) 1.9 ppb (2) N/A 17.0 ppb (16) N/A 2.0 ppb (3) 42.0 ppb (32) 0.38 ppb (4) N/A 15.0 μg/m3 (56) 56.0
 
Nov. 13, 2019, 9 p.m. 11.4 ppb (11) 0.9 ppb (1) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 49.0 ppb (38) 0.29 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 13, 2019, 8 p.m. 14.6 ppb (14) 1.6 ppb (1) N/A 13.0 ppb (12) N/A 1.0 ppb (1) 45.0 ppb (35) 0.33 ppb (4) N/A 14.0 μg/m3 (54) 54.0
 
Nov. 13, 2019, 7 p.m. 24.3 ppb (23) 3.6 ppb (3) N/A 21.0 ppb (19) N/A 2.0 ppb (3) 39.0 ppb (30) 0.51 ppb (6) N/A 20.0 μg/m3 (67) 67.0
 
Nov. 13, 2019, 6 p.m. 20.2 ppb (19) 3.6 ppb (3) N/A 17.0 ppb (16) N/A 1.0 ppb (1) 38.0 ppb (29) 0.44 ppb (5) N/A 19.0 μg/m3 (65) 65.0
 
Nov. 13, 2019, 5 p.m. 25.2 ppb (23) 5.4 ppb (5) N/A 20.0 ppb (19) N/A 1.0 ppb (1) 27.0 ppb (21) 0.52 ppb (6) N/A 16.0 μg/m3 (59) 59.0
 
Nov. 13, 2019, 4 p.m. 39.2 ppb (36) 13.1 ppb (12) N/A 26.0 ppb (24) N/A 1.0 ppb (1) 10.0 ppb (8) 0.88 ppb (10) N/A 17.0 μg/m3 (61) 61.0
 
Nov. 13, 2019, 3 p.m. 40.2 ppb (37) 13.9 ppb (13) N/A 26.0 ppb (24) N/A 0.0 ppb (0) 3.0 ppb (2) 0.82 ppb (9) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 13, 2019, 2 p.m. 24.9 ppb (23) 3.0 ppb (3) N/A 22.0 ppb (20) N/A 0.0 ppb (0) 3.0 ppb (2) 0.69 ppb (8) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 13, 2019, 1 p.m. 14.1 ppb (13) 0.2 ppb (0) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 13.0 ppb (10) 0.54 ppb (6) N/A 15.0 μg/m3 (56) 56.0
 
Nov. 13, 2019, noon 14.1 ppb (13) 0.2 ppb (0) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 11.0 ppb (8) 0.55 ppb (6) N/A 13.0 μg/m3 (52) 52.0
 
Nov. 13, 2019, 11 a.m. 13.2 ppb (12) 0.2 ppb (0) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 12.0 ppb (9) 0.57 ppb (6) N/A 18.0 μg/m3 (63) 63.0
 
Nov. 13, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (54) 54.0
 
Nov. 13, 2019, 9 a.m. 13.9 ppb (13) 0.2 ppb (0) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 15.0 ppb (12) 0.62 ppb (7) N/A 15.0 μg/m3 (56) 56.0
 
Nov. 13, 2019, 8 a.m. 16.5 ppb (15) 0.2 ppb (0) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 11.0 ppb (8) 0.68 ppb (8) N/A 17.0 μg/m3 (61) 61.0
 
Nov. 13, 2019, 7 a.m. 18.7 ppb (17) 0.3 ppb (0) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 12.0 ppb (9) 0.74 ppb (8) N/A 14.0 μg/m3 (54) 54.0
 
Nov. 13, 2019, 6 a.m. 19.2 ppb (18) 0.2 ppb (0) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 14.0 ppb (11) 0.72 ppb (8) N/A 13.0 μg/m3 (52) 52.0
 
Nov. 13, 2019, 5 a.m. 20.9 ppb (19) 0.5 ppb (0) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 17.0 ppb (13) 0.76 ppb (8) N/A 15.0 μg/m3 (56) 56.0
 
Nov. 13, 2019, 4 a.m. 17.1 ppb (16) 0.2 ppb (0) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 27.0 ppb (21) 0.67 ppb (7) N/A 19.0 μg/m3 (65) 65.0
 
Nov. 13, 2019, 3 a.m. 12.8 ppb (12) 0.1 ppb (0) N/A 13.0 ppb (12) N/A 1.0 ppb (1) 39.0 ppb (30) 0.62 ppb (7) N/A 15.0 μg/m3 (56) 56.0
 
Nov. 13, 2019, 2 a.m. 19.5 ppb (18) 0.2 ppb (0) N/A 19.0 ppb (18) N/A 1.0 ppb (1) 37.0 ppb (28) 0.73 ppb (8) N/A 21.0 μg/m3 (69) 69.0
 
Nov. 13, 2019, 1 a.m. 21.8 ppb (20) 0.3 ppb (0) N/A 22.0 ppb (20) N/A 1.0 ppb (1) 41.0 ppb (32) 0.82 ppb (9) N/A 24.0 μg/m3 (76) 76.0
 
Nov. 13, 2019, midnight 12.9 ppb (12) 0.3 ppb (0) N/A 13.0 ppb (12) N/A 1.0 ppb (1) 64.0 ppb (49) 0.6 ppb (7) N/A 21.0 μg/m3 (69) 69.0
 
Nov. 12, 2019, 11 p.m. 10.4 ppb (10) 0.5 ppb (0) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 69.0 ppb (53) 0.53 ppb (6) N/A 18.0 μg/m3 (63) 63.0
 
Nov. 12, 2019, 10 p.m. 8.7 ppb (8) 0.5 ppb (0) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 68.0 ppb (52) 0.52 ppb (6) N/A 19.0 μg/m3 (65) 65.0
 
Nov. 12, 2019, 9 p.m. 7.6 ppb (7) 0.6 ppb (1) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 66.0 ppb (51) 0.5 ppb (6) N/A 16.0 μg/m3 (59) 59.0
 
Nov. 12, 2019, 8 p.m. 11.4 ppb (11) 1.2 ppb (1) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 58.0 ppb (45) 0.54 ppb (6) N/A 20.0 μg/m3 (67) 67.0
 
Nov. 12, 2019, 7 p.m. 17.1 ppb (16) 2.6 ppb (2) N/A 15.0 ppb (14) N/A 1.0 ppb (1) 43.0 ppb (33) 0.62 ppb (7) N/A 22.0 μg/m3 (71) 71.0
 
Nov. 12, 2019, 6 p.m. 27.9 ppb (26) 7.6 ppb (7) N/A 20.0 ppb (19) N/A 2.0 ppb (3) 26.0 ppb (20) 0.73 ppb (8) N/A 20.0 μg/m3 (67) 67.0
 
Nov. 12, 2019, 5 p.m. 46.6 ppb (43) 18.9 ppb (18) N/A 28.0 ppb (26) N/A 2.0 ppb (3) 11.0 ppb (8) 0.96 ppb (11) N/A 21.0 μg/m3 (69) 69.0
 
Nov. 12, 2019, 4 p.m. 29.6 ppb (27) 10.8 ppb (10) N/A 19.0 ppb (18) N/A 2.0 ppb (3) 11.0 ppb (8) 0.69 ppb (8) N/A 18.0 μg/m3 (63) 63.0
 
Nov. 12, 2019, 3 p.m. 47.4 ppb (44) 28.2 ppb (26) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 1.0 ppb (1) 0.91 ppb (10) N/A 10.0 μg/m3 (42) 44.0
 
Nov. 12, 2019, 2 p.m. 27.4 ppb (25) 10.8 ppb (10) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 0.0 ppb (0) 0.6 ppb (7) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 12, 2019, 1 p.m. 16.0 ppb (15) 2.2 ppb (2) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 2.0 ppb (2) 0.49 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
Nov. 12, 2019, noon 12.5 ppb (12) 0.5 ppb (0) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 3.0 ppb (2) 0.43 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 12, 2019, 11 a.m. 10.7 ppb (10) 0.4 ppb (0) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 5.0 ppb (4) 0.43 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 12, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
Nov. 12, 2019, 9 a.m. 12.6 ppb (12) 0.4 ppb (0) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 6.0 ppb (5) 0.53 ppb (6) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 12, 2019, 8 a.m. 14.6 ppb (14) 0.5 ppb (0) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 6.0 ppb (5) 0.59 ppb (7) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 12, 2019, 7 a.m. 21.3 ppb (20) 2.0 ppb (2) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 1.0 ppb (1) 0.75 ppb (8) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 12, 2019, 6 a.m. 22.4 ppb (21) 1.5 ppb (1) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 2.0 ppb (2) 0.74 ppb (8) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 12, 2019, 5 a.m. 18.1 ppb (17) 1.0 ppb (1) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 8.0 ppb (6) 0.69 ppb (8) N/A 13.0 μg/m3 (52) 52.0
 
Nov. 12, 2019, 4 a.m. 12.9 ppb (12) 0.2 ppb (0) N/A 13.0 ppb (12) N/A 1.0 ppb (1) 16.0 ppb (12) 0.53 ppb (6) N/A 13.0 μg/m3 (52) 52.0
 
Nov. 12, 2019, 3 a.m. 11.0 ppb (10) 0.2 ppb (0) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 20.0 ppb (15) 0.5 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 12, 2019, 2 a.m. 32.6 ppb (30) 3.1 ppb (3) N/A 30.0 ppb (28) N/A 1.0 ppb (1) 6.0 ppb (5) 0.88 ppb (10) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 12, 2019, 1 a.m. 22.5 ppb (21) 0.3 ppb (0) N/A 22.0 ppb (20) N/A 1.0 ppb (1) 20.0 ppb (15) 0.72 ppb (8) N/A 13.0 μg/m3 (52) 52.0
 
Nov. 12, 2019, midnight 11.2 ppb (10) 0.3 ppb (0) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 37.0 ppb (28) 0.52 ppb (6) N/A 7.0 μg/m3 (29) 29.0
 
Nov. 11, 2019, 11 p.m. 5.2 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 46.0 ppb (35) 0.4 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 11, 2019, 10 p.m. 6.3 ppb (6) 0.7 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 46.0 ppb (35) 0.41 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 11, 2019, 9 p.m. 5.2 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 45.0 ppb (35) 0.39 ppb (4) N/A 7.0 μg/m3 (29) 35.0
 
Nov. 11, 2019, 8 p.m. 5.3 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 43.0 ppb (33) 0.39 ppb (4) N/A 5.0 μg/m3 (21) 33.0
 
Nov. 11, 2019, 7 p.m. 11.1 ppb (10) 2.1 ppb (2) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 38.0 ppb (29) 0.56 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 11, 2019, 6 p.m. 24.5 ppb (23) 6.7 ppb (6) N/A 18.0 ppb (17) N/A 1.0 ppb (1) 26.0 ppb (20) 0.8 ppb (9) N/A 14.0 μg/m3 (54) 54.0
 
Nov. 11, 2019, 5 p.m. 23.4 ppb (22) 7.6 ppb (7) N/A 16.0 ppb (15) N/A 1.0 ppb (1) 18.0 ppb (14) 0.66 ppb (7) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 11, 2019, 4 p.m. 37.3 ppb (35) 17.9 ppb (17) N/A 19.0 ppb (18) N/A 1.0 ppb (1) 8.0 ppb (6) 0.77 ppb (9) N/A 15.0 μg/m3 (56) 56.0
 
Nov. 11, 2019, 3 p.m. 34.4 ppb (32) 17.2 ppb (16) N/A 17.0 ppb (16) N/A 1.0 ppb (1) 2.0 ppb (2) 0.72 ppb (8) N/A 6.0 μg/m3 (25) 32.0
 
Nov. 11, 2019, 2 p.m. 24.7 ppb (23) 6.9 ppb (6) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 0.0 ppb (0) 0.59 ppb (7) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 11, 2019, 1 p.m. 18.9 ppb (18) 2.8 ppb (3) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 1.0 ppb (1) 0.56 ppb (6) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 11, 2019, noon 14.4 ppb (13) 0.7 ppb (1) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 2.0 ppb (2) 0.56 ppb (6) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 11, 2019, 11 a.m. 13.2 ppb (12) 0.7 ppb (1) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 4.0 ppb (3) 0.52 ppb (6) N/A 7.0 μg/m3 (29) 29.0
 
Nov. 11, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
Nov. 11, 2019, 9 a.m. 14.4 ppb (13) 0.5 ppb (0) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 6.0 ppb (5) 0.59 ppb (7) N/A 14.0 μg/m3 (54) 54.0
 
Nov. 11, 2019, 8 a.m. 17.4 ppb (16) 0.4 ppb (0) N/A 17.0 ppb (16) N/A 1.0 ppb (1) 5.0 ppb (4) 0.69 ppb (8) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 11, 2019, 7 a.m. 19.9 ppb (18) 0.8 ppb (1) N/A 19.0 ppb (18) N/A 1.0 ppb (1) 5.0 ppb (4) 0.76 ppb (8) N/A 16.0 μg/m3 (59) 59.0
 
Nov. 11, 2019, 6 a.m. 18.4 ppb (17) 0.4 ppb (0) N/A 18.0 ppb (17) N/A 1.0 ppb (1) 9.0 ppb (7) 0.7 ppb (8) N/A 18.0 μg/m3 (63) 63.0
 
Nov. 11, 2019, 5 a.m. 20.8 ppb (19) 2.5 ppb (2) N/A 18.0 ppb (17) N/A 1.0 ppb (1) 13.0 ppb (10) 0.68 ppb (8) N/A 17.0 μg/m3 (61) 61.0
 
Nov. 11, 2019, 4 a.m. 13.9 ppb (13) 0.2 ppb (0) N/A 14.0 ppb (13) N/A 1.0 ppb (1) 20.0 ppb (15) 0.55 ppb (6) N/A 13.0 μg/m3 (52) 52.0
 
Nov. 11, 2019, 3 a.m. 18.6 ppb (17) 0.2 ppb (0) N/A 18.0 ppb (17) N/A 2.0 ppb (3) 18.0 ppb (14) 0.61 ppb (7) N/A 19.0 μg/m3 (65) 65.0
 
Nov. 11, 2019, 2 a.m. 22.2 ppb (21) 0.2 ppb (0) N/A 22.0 ppb (20) N/A 3.0 ppb (4) 20.0 ppb (15) 0.65 ppb (7) N/A 19.0 μg/m3 (65) 65.0
 
Nov. 11, 2019, 1 a.m. 24.9 ppb (23) 0.3 ppb (0) N/A 25.0 ppb (23) N/A 4.0 ppb (6) 20.0 ppb (15) 0.65 ppb (7) N/A 17.0 μg/m3 (61) 61.0
 
Nov. 11, 2019, midnight 15.7 ppb (15) 0.5 ppb (0) N/A 15.0 ppb (14) N/A 3.0 ppb (4) 37.0 ppb (28) 0.51 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 10, 2019, 11 p.m. 5.2 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 51.0 ppb (39) 0.39 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 10, 2019, 10 p.m. 10.0 ppb (9) 1.1 ppb (1) N/A 9.0 ppb (8) N/A 3.0 ppb (4) 46.0 ppb (35) 0.46 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 10, 2019, 9 p.m. 10.4 ppb (10) 1.2 ppb (1) N/A 9.0 ppb (8) N/A 2.0 ppb (3) 48.0 ppb (37) 0.52 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 10, 2019, 8 p.m. 11.7 ppb (11) 1.8 ppb (2) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 43.0 ppb (33) 0.57 ppb (6) N/A 16.0 μg/m3 (59) 59.0
 
Nov. 10, 2019, 7 p.m. 9.3 ppb (9) 1.5 ppb (1) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 39.0 ppb (30) 0.55 ppb (6) N/A 18.0 μg/m3 (63) 63.0
 
Nov. 10, 2019, 6 p.m. 10.5 ppb (10) 2.3 ppb (2) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 29.0 ppb (22) 0.56 ppb (6) N/A 22.0 μg/m3 (71) 71.0
 
Nov. 10, 2019, 5 p.m. 14.5 ppb (13) 4.6 ppb (4) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 20.0 ppb (15) 0.6 ppb (7) N/A 21.0 μg/m3 (69) 69.0
 
Nov. 10, 2019, 4 p.m. 15.9 ppb (15) 4.8 ppb (4) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 13.0 ppb (10) 0.64 ppb (7) N/A 14.0 μg/m3 (54) 54.0
 
Nov. 10, 2019, 3 p.m. 18.5 ppb (17) 5.6 ppb (5) N/A 13.0 ppb (12) N/A 1.0 ppb (1) 4.0 ppb (3) 0.66 ppb (7) N/A 20.0 μg/m3 (67) 67.0
 
Nov. 10, 2019, 2 p.m. 19.0 ppb (18) 3.6 ppb (3) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 0.0 ppb (0) 0.66 ppb (7) N/A 21.0 μg/m3 (69) 69.0
 
Nov. 10, 2019, 1 p.m. 17.1 ppb (16) 2.0 ppb (2) N/A 15.0 ppb (14) N/A 1.0 ppb (1) 2.0 ppb (2) 0.63 ppb (7) N/A 14.0 μg/m3 (54) 54.0
 
Nov. 10, 2019, noon 17.0 ppb (16) 1.5 ppb (1) N/A 16.0 ppb (15) N/A 1.0 ppb (1) 3.0 ppb (2) 0.7 ppb (8) N/A 14.0 μg/m3 (54) 54.0
 
Nov. 10, 2019, 11 a.m. 15.4 ppb (14) 1.0 ppb (1) N/A 14.0 ppb (13) N/A 2.0 ppb (3) 4.0 ppb (3) 0.63 ppb (7) N/A 16.0 μg/m3 (59) 59.0
 
Nov. 10, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (63) 63.0
 
Nov. 10, 2019, 9 a.m. 22.2 ppb (21) 2.2 ppb (2) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 1.0 ppb (1) 0.79 ppb (9) N/A 19.0 μg/m3 (65) 65.0