ID: 119

AQSQID: 060130002

Site Name: Concord

Added: April 21, 2020, 6:24 p.m.

Updated: Nov. 30, 2020, 6:41 a.m.

Location: Concord (Chevron), CA

Reporting: True, Located: True

Current AQI: 64.0

Concord (Chevron) CA, US: 37.9383, -122.025

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Nov. 30, 2020, 5 a.m. 20.8 ppb (20) 1.2 ppb (2) N/A 20.0 ppb (19) N/A 1.0 ppb (2) 5.0 ppb (5) 0.68 ppb (8) N/A 18.0 μg/m3 (64) 64.0
 
Nov. 30, 2020, 4 a.m. 16.8 ppb (16) 0.4 ppb (1) N/A 16.0 ppb (16) N/A 1.0 ppb (2) 11.0 ppb (11) 0.65 ppb (8) N/A 14.0 μg/m3 (55) 55.0
 
Nov. 30, 2020, 3 a.m. 14.4 ppb (14) 0.3 ppb (1) N/A 14.0 ppb (14) N/A 1.0 ppb (2) 13.0 ppb (13) 0.59 ppb (7) N/A 16.0 μg/m3 (60) 60.0
 
Nov. 30, 2020, 2 a.m. 15.9 ppb (15) 0.3 ppb (1) N/A 16.0 ppb (16) N/A 1.0 ppb (2) 13.0 ppb (13) 0.65 ppb (8) N/A 14.0 μg/m3 (55) 55.0
 
Nov. 30, 2020, 1 a.m. 15.7 ppb (15) 0.8 ppb (1) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 19.0 ppb (18) 0.68 ppb (8) N/A 16.0 μg/m3 (60) 60.0
 
Nov. 30, 2020, midnight 10.2 ppb (10) 0.4 ppb (1) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 30.0 ppb (28) 0.54 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 29, 2020, 11 p.m. 6.4 ppb (7) 0.5 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 35.0 ppb (33) 0.48 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 29, 2020, 10 p.m. 6.3 ppb (6) 0.8 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 36.0 ppb (34) 0.49 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 29, 2020, 9 p.m. 7.8 ppb (8) 1.2 ppb (2) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 33.0 ppb (31) 0.51 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 29, 2020, 8 p.m. 10.4 ppb (10) 2.1 ppb (2) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 28.0 ppb (26) 0.58 ppb (7) N/A 18.0 μg/m3 (64) 64.0
 
Nov. 29, 2020, 7 p.m. 13.7 ppb (13) 3.8 ppb (4) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 21.0 ppb (20) 0.61 ppb (7) N/A 13.0 μg/m3 (53) 53.0
 
Nov. 29, 2020, 6 p.m. 17.0 ppb (17) 5.0 ppb (5) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 21.0 ppb (20) 0.61 ppb (7) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 29, 2020, 5 p.m. 25.4 ppb (24) 9.5 ppb (9) N/A 16.0 ppb (16) N/A 1.0 ppb (2) 13.0 ppb (13) 0.55 ppb (7) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 29, 2020, 4 p.m. 32.7 ppb (31) 13.7 ppb (13) N/A 19.0 ppb (18) N/A 1.0 ppb (2) 6.0 ppb (6) 0.55 ppb (7) N/A 7.0 μg/m3 (30) 31.0
 
Nov. 29, 2020, 3 p.m. 40.0 ppb (38) 19.8 ppb (19) N/A 20.0 ppb (19) N/A 1.0 ppb (2) 0.0 ppb (0) 0.53 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 29, 2020, 2 p.m. 32.4 ppb (31) 13.0 ppb (13) N/A 19.0 ppb (18) N/A 1.0 ppb (2) 0.0 ppb (0) 0.49 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 29, 2020, 1 p.m. 27.9 ppb (27) 9.4 ppb (9) N/A 19.0 ppb (18) N/A 1.0 ppb (2) 0.0 ppb (0) 0.52 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 29, 2020, noon 24.1 ppb (23) 5.9 ppb (6) N/A 18.0 ppb (17) N/A 1.0 ppb (2) 0.0 ppb (0) 0.51 ppb (6) N/A 7.0 μg/m3 (30) 30.0
 
Nov. 29, 2020, 11 a.m. 20.3 ppb (20) 3.5 ppb (4) N/A 17.0 ppb (17) N/A 1.0 ppb (2) 0.0 ppb (0) 0.49 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 29, 2020, 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 (53) 53.0
 
Nov. 29, 2020, 9 a.m. 23.6 ppb (23) 4.2 ppb (4) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 0.0 ppb (0) 0.62 ppb (7) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 29, 2020, 8 a.m. 28.5 ppb (27) 7.4 ppb (7) N/A 21.0 ppb (20) N/A 1.0 ppb (2) 0.0 ppb (0) 0.71 ppb (8) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 29, 2020, 7 a.m. 29.4 ppb (28) 7.6 ppb (8) N/A 22.0 ppb (21) N/A 1.0 ppb (2) 0.0 ppb (0) 0.82 ppb (10) N/A 19.0 μg/m3 (66) 66.0
 
Nov. 29, 2020, 6 a.m. 30.0 ppb (29) 7.3 ppb (7) N/A 23.0 ppb (22) N/A 1.0 ppb (2) 0.0 ppb (0) 0.84 ppb (10) N/A 23.0 μg/m3 (74) 74.0
 
Nov. 29, 2020, 5 a.m. 27.6 ppb (27) 5.3 ppb (5) N/A 22.0 ppb (21) N/A 1.0 ppb (2) 2.0 ppb (2) 0.84 ppb (10) N/A 23.0 μg/m3 (74) 74.0
 
Nov. 29, 2020, 4 a.m. 19.2 ppb (19) 1.2 ppb (2) N/A 18.0 ppb (17) N/A 1.0 ppb (2) 6.0 ppb (6) 0.7 ppb (8) N/A 22.0 μg/m3 (72) 72.0
 
Nov. 29, 2020, 3 a.m. 15.4 ppb (15) 0.3 ppb (1) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 11.0 ppb (11) 0.65 ppb (8) N/A 20.0 μg/m3 (68) 68.0
 
Nov. 29, 2020, 2 a.m. 13.8 ppb (14) 0.3 ppb (1) N/A 14.0 ppb (14) N/A 1.0 ppb (2) 16.0 ppb (15) 0.61 ppb (7) N/A N/A 15.0
 
Nov. 29, 2020, 1 a.m. 13.2 ppb (13) 0.4 ppb (1) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 22.0 ppb (21) 0.55 ppb (7) N/A 13.0 μg/m3 (53) 53.0
 
Nov. 29, 2020, midnight 7.5 ppb (8) 0.5 ppb (1) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 34.0 ppb (32) 0.47 ppb (6) N/A 13.0 μg/m3 (53) 53.0
 
Nov. 28, 2020, 11 p.m. 4.8 ppb (5) 0.4 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 38.0 ppb (36) 0.44 ppb (5) N/A 13.0 μg/m3 (53) 53.0
 
Nov. 28, 2020, 10 p.m. 4.4 ppb (5) 0.5 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 38.0 ppb (36) 0.43 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 28, 2020, 9 p.m. 4.7 ppb (5) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 38.0 ppb (36) 0.46 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 28, 2020, 8 p.m. 4.5 ppb (5) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 36.0 ppb (34) 0.45 ppb (6) N/A 15.0 μg/m3 (58) 58.0
 
Nov. 28, 2020, 7 p.m. 5.1 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 33.0 ppb (31) 0.47 ppb (6) N/A 13.0 μg/m3 (53) 53.0
 
Nov. 28, 2020, 6 p.m. 9.2 ppb (9) 2.1 ppb (2) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 26.0 ppb (25) 0.51 ppb (6) N/A 15.0 μg/m3 (58) 58.0
 
Nov. 28, 2020, 5 p.m. 25.6 ppb (25) 10.8 ppb (11) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 10.0 ppb (10) 0.63 ppb (7) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 28, 2020, 4 p.m. 32.1 ppb (31) 16.0 ppb (16) N/A 16.0 ppb (16) N/A 1.0 ppb (2) 4.0 ppb (4) 0.56 ppb (7) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 28, 2020, 3 p.m. 30.3 ppb (29) 13.9 ppb (14) N/A 16.0 ppb (16) N/A 0.0 ppb (0) 0.0 ppb (0) 0.51 ppb (6) N/A 5.0 μg/m3 (21) 29.0
 
Nov. 28, 2020, 2 p.m. 20.6 ppb (20) 5.0 ppb (5) N/A 16.0 ppb (16) N/A 1.0 ppb (2) 0.0 ppb (0) 0.45 ppb (6) N/A 4.0 μg/m3 (17) 20.0
 
Nov. 28, 2020, 1 p.m. 18.8 ppb (18) 4.1 ppb (4) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 0.0 ppb (0) 0.45 ppb (6) N/A 4.0 μg/m3 (17) 18.0
 
Nov. 28, 2020, noon 21.4 ppb (21) 5.7 ppb (6) N/A 16.0 ppb (16) N/A 1.0 ppb (2) 0.0 ppb (0) 0.46 ppb (6) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 28, 2020, 11 a.m. 21.9 ppb (21) 6.7 ppb (7) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 0.0 ppb (0) 0.49 ppb (6) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 28, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (34) 34.0
 
Nov. 28, 2020, 9 a.m. 27.2 ppb (26) 9.5 ppb (9) N/A 18.0 ppb (17) N/A 1.0 ppb (2) 0.0 ppb (0) 0.72 ppb (8) N/A 15.0 μg/m3 (58) 58.0
 
Nov. 28, 2020, 8 a.m. 24.6 ppb (24) 6.6 ppb (7) N/A 18.0 ppb (17) N/A 1.0 ppb (2) 0.0 ppb (0) 0.71 ppb (8) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 28, 2020, 7 a.m. 25.8 ppb (25) 6.7 ppb (7) N/A 19.0 ppb (18) N/A 1.0 ppb (2) 0.0 ppb (0) 0.72 ppb (8) N/A 15.0 μg/m3 (58) 58.0
 
Nov. 28, 2020, 6 a.m. 23.9 ppb (23) 4.8 ppb (5) N/A 19.0 ppb (18) N/A 1.0 ppb (2) 1.0 ppb (1) 0.7 ppb (8) N/A 18.0 μg/m3 (64) 64.0
 
Nov. 28, 2020, 5 a.m. 20.2 ppb (20) 2.6 ppb (3) N/A 18.0 ppb (17) N/A 1.0 ppb (2) 2.0 ppb (2) 0.65 ppb (8) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 28, 2020, 4 a.m. 12.8 ppb (13) 0.4 ppb (1) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 8.0 ppb (8) 0.56 ppb (7) N/A 15.0 μg/m3 (58) 58.0
 
Nov. 28, 2020, 3 a.m. 12.2 ppb (12) 0.3 ppb (1) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 11.0 ppb (11) 0.52 ppb (6) N/A 8.0 μg/m3 (34) 34.0
 
Nov. 28, 2020, 2 a.m. 18.2 ppb (18) 0.5 ppb (1) N/A 18.0 ppb (17) N/A 1.0 ppb (2) 7.0 ppb (7) 0.67 ppb (8) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 28, 2020, 1 a.m. 12.6 ppb (12) 0.3 ppb (1) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 16.0 ppb (15) 0.53 ppb (6) N/A 7.0 μg/m3 (30) 30.0
 
Nov. 28, 2020, midnight 7.9 ppb (8) 0.6 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 24.0 ppb (23) 0.45 ppb (6) N/A 5.0 μg/m3 (21) 23.0
 
Nov. 27, 2020, 11 p.m. 4.5 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (26) 0.4 ppb (5) N/A 6.0 μg/m3 (25) 26.0
 
Nov. 27, 2020, 10 p.m. 3.5 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (27) 0.38 ppb (5) N/A 3.0 μg/m3 (13) 27.0
 
Nov. 27, 2020, 9 p.m. 3.4 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 28.0 ppb (26) 0.38 ppb (5) N/A 5.0 μg/m3 (21) 26.0
 
Nov. 27, 2020, 8 p.m. 3.6 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (25) 0.39 ppb (5) N/A 5.0 μg/m3 (21) 25.0
 
Nov. 27, 2020, 7 p.m. 3.9 ppb (4) 1.1 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (24) 0.38 ppb (5) N/A 5.0 μg/m3 (21) 24.0
 
Nov. 27, 2020, 6 p.m. 3.2 ppb (4) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 24.0 ppb (23) 0.36 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 27, 2020, 5 p.m. 6.0 ppb (6) 1.9 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 21.0 ppb (20) 0.39 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 27, 2020, 4 p.m. 31.8 ppb (30) 15.4 ppb (15) N/A 16.0 ppb (16) N/A 1.0 ppb (2) 5.0 ppb (5) 0.61 ppb (7) N/A 7.0 μg/m3 (30) 30.0
 
Nov. 27, 2020, 3 p.m. 31.7 ppb (30) 13.6 ppb (13) N/A 18.0 ppb (17) N/A 1.0 ppb (2) 1.0 ppb (1) 0.56 ppb (7) N/A 4.0 μg/m3 (17) 30.0
 
Nov. 27, 2020, 2 p.m. 24.1 ppb (23) 5.5 ppb (6) N/A 19.0 ppb (18) N/A 1.0 ppb (2) 0.0 ppb (0) 0.51 ppb (6) N/A 7.0 μg/m3 (30) 30.0
 
Nov. 27, 2020, 1 p.m. 16.1 ppb (16) 0.7 ppb (1) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 5.0 ppb (5) 0.46 ppb (6) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 27, 2020, noon 8.3 ppb (8) 0.3 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 14.0 ppb (13) 0.39 ppb (5) N/A 3.0 μg/m3 (13) 13.0
 
Nov. 27, 2020, 11 a.m. 1.7 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 25.0 ppb (24) 0.33 ppb (4) N/A 3.0 μg/m3 (13) 24.0
 
Nov. 27, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Nov. 27, 2020, 9 a.m. 1.2 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (25) 0.33 ppb (4) N/A 5.0 μg/m3 (21) 25.0
 
Nov. 27, 2020, 8 a.m. 1.3 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 28.0 ppb (26) 0.33 ppb (4) N/A 5.0 μg/m3 (21) 26.0
 
Nov. 27, 2020, 7 a.m. 1.6 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (25) 0.34 ppb (4) N/A 4.0 μg/m3 (17) 25.0
 
Nov. 27, 2020, 6 a.m. 2.2 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 27.0 ppb (25) 0.35 ppb (4) N/A 1.0 μg/m3 (5) 25.0
 
Nov. 27, 2020, 5 a.m. 3.0 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (24) 0.37 ppb (5) N/A 3.0 μg/m3 (13) 24.0
 
Nov. 27, 2020, 4 a.m. 2.6 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 27.0 ppb (25) 0.36 ppb (5) N/A 4.0 μg/m3 (17) 25.0
 
Nov. 27, 2020, 3 a.m. 2.6 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 28.0 ppb (26) 0.37 ppb (5) N/A 5.0 μg/m3 (21) 26.0
 
Nov. 27, 2020, 2 a.m. 3.9 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 25.0 ppb (24) 0.41 ppb (5) N/A 7.0 μg/m3 (30) 30.0
 
Nov. 27, 2020, 1 a.m. 4.5 ppb (5) 0.2 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 25.0 ppb (24) 0.42 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 27, 2020, midnight 2.1 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (27) 0.36 ppb (5) N/A 3.0 μg/m3 (13) 27.0
 
Nov. 26, 2020, 11 p.m. 1.7 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (28) 0.35 ppb (4) N/A 4.0 μg/m3 (17) 28.0
 
Nov. 26, 2020, 10 p.m. 1.4 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (29) 0.35 ppb (4) N/A 5.0 μg/m3 (21) 29.0
 
Nov. 26, 2020, 9 p.m. 1.5 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (29) 0.35 ppb (4) N/A 5.0 μg/m3 (21) 29.0
 
Nov. 26, 2020, 8 p.m. 1.6 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (29) 0.35 ppb (4) N/A 2.0 μg/m3 (9) 29.0
 
Nov. 26, 2020, 7 p.m. 1.6 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (28) 0.35 ppb (4) N/A 3.0 μg/m3 (13) 28.0
 
Nov. 26, 2020, 6 p.m. 1.7 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (28) 0.36 ppb (5) N/A 1.0 μg/m3 (5) 28.0
 
Nov. 26, 2020, 5 p.m. 3.1 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 28.0 ppb (26) 0.37 ppb (5) N/A 2.0 μg/m3 (9) 26.0
 
Nov. 26, 2020, 4 p.m. 24.0 ppb (23) 11.7 ppb (12) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 11.0 ppb (11) 0.55 ppb (7) N/A 4.0 μg/m3 (17) 23.0
 
Nov. 26, 2020, 3 p.m. 30.2 ppb (29) 14.7 ppb (14) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 0.0 ppb (0) 0.54 ppb (6) N/A 4.0 μg/m3 (17) 29.0
 
Nov. 26, 2020, 2 p.m. 28.6 ppb (27) 12.5 ppb (12) N/A 16.0 ppb (16) N/A 1.0 ppb (2) 0.0 ppb (0) 0.51 ppb (6) N/A 2.0 μg/m3 (9) 27.0
 
Nov. 26, 2020, 1 p.m. 20.9 ppb (20) 7.6 ppb (8) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 0.0 ppb (0) 0.43 ppb (5) N/A 2.0 μg/m3 (9) 20.0
 
Nov. 26, 2020, noon 16.7 ppb (16) 4.2 ppb (4) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 0.0 ppb (0) 0.42 ppb (5) N/A 3.0 μg/m3 (13) 16.0
 
Nov. 26, 2020, 11 a.m. 14.1 ppb (14) 2.8 ppb (3) N/A 11.0 ppb (11) N/A 2.0 ppb (3) 1.0 ppb (1) 0.42 ppb (5) N/A 4.0 μg/m3 (17) 17.0
 
Nov. 26, 2020, 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. 26, 2020, 9 a.m. 5.7 ppb (6) 0.4 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 10.0 ppb (10) 0.38 ppb (5) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 26, 2020, 8 a.m. 5.6 ppb (6) 0.4 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 11.0 ppb (11) 0.39 ppb (5) N/A 7.0 μg/m3 (30) 30.0
 
Nov. 26, 2020, 7 a.m. 6.6 ppb (7) 0.4 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 11.0 ppb (11) 0.41 ppb (5) N/A 7.0 μg/m3 (30) 30.0
 
Nov. 26, 2020, 6 a.m. 7.6 ppb (8) 0.3 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 10.0 ppb (10) 0.46 ppb (6) N/A 7.0 μg/m3 (30) 30.0
 
Nov. 26, 2020, 5 a.m. 8.5 ppb (9) 0.3 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 11.0 ppb (11) 0.46 ppb (6) N/A 8.0 μg/m3 (34) 34.0
 
Nov. 26, 2020, 4 a.m. 13.2 ppb (13) 0.6 ppb (1) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 9.0 ppb (9) 0.57 ppb (7) N/A 18.0 μg/m3 (64) 64.0
 
Nov. 26, 2020, 3 a.m. 7.9 ppb (8) 0.3 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 18.0 ppb (17) 0.53 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 26, 2020, 2 a.m. 4.4 ppb (5) 0.2 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 25.0 ppb (24) 0.46 ppb (6) N/A 7.0 μg/m3 (30) 30.0
 
Nov. 26, 2020, 1 a.m. 4.6 ppb (5) 0.3 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 25.0 ppb (24) 0.44 ppb (5) N/A 4.0 μg/m3 (17) 24.0
 
Nov. 26, 2020, midnight 3.6 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (27) 0.42 ppb (5) N/A 5.0 μg/m3 (21) 27.0
 
Nov. 25, 2020, 11 p.m. 3.4 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 31.0 ppb (29) 0.41 ppb (5) N/A 4.0 μg/m3 (17) 29.0
 
Nov. 25, 2020, 10 p.m. 3.1 ppb (3) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 32.0 ppb (30) 0.41 ppb (5) N/A 4.0 μg/m3 (17) 30.0
 
Nov. 25, 2020, 9 p.m. 3.3 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 31.0 ppb (29) 0.43 ppb (5) N/A 4.0 μg/m3 (17) 29.0
 
Nov. 25, 2020, 8 p.m. 4.8 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 30.0 ppb (28) 0.45 ppb (6) N/A 4.0 μg/m3 (17) 28.0
 
Nov. 25, 2020, 7 p.m. 3.6 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (27) 0.44 ppb (5) N/A 6.0 μg/m3 (25) 27.0
 
Nov. 25, 2020, 6 p.m. 4.2 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 27.0 ppb (25) 0.45 ppb (6) N/A 5.0 μg/m3 (21) 25.0
 
Nov. 25, 2020, 5 p.m. 4.2 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 25.0 ppb (24) 0.45 ppb (6) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 25, 2020, 4 p.m. 12.2 ppb (12) 2.9 ppb (3) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 17.0 ppb (16) 0.53 ppb (6) N/A 3.0 μg/m3 (13) 16.0
 
Nov. 25, 2020, 3 p.m. 15.4 ppb (15) 2.4 ppb (3) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 10.0 ppb (10) 0.53 ppb (6) N/A 4.0 μg/m3 (17) 17.0
 
Nov. 25, 2020, 2 p.m. 10.0 ppb (10) 0.6 ppb (1) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 15.0 ppb (14) 0.47 ppb (6) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 25, 2020, 1 p.m. 7.0 ppb (7) 0.2 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 17.0 ppb (16) 0.45 ppb (6) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 25, 2020, noon 9.1 ppb (9) 0.3 ppb (1) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 15.0 ppb (14) 0.44 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 25, 2020, 11 a.m. 3.8 ppb (4) 0.3 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 23.0 ppb (22) 0.43 ppb (5) N/A 3.0 μg/m3 (13) 22.0
 
Nov. 25, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Nov. 25, 2020, 9 a.m. 2.8 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (24) 0.44 ppb (5) N/A 5.0 μg/m3 (21) 24.0
 
Nov. 25, 2020, 8 a.m. 3.1 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 24.0 ppb (23) 0.45 ppb (6) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 25, 2020, 7 a.m. 2.9 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 24.0 ppb (23) 0.45 ppb (6) N/A 4.0 μg/m3 (17) 23.0
 
Nov. 25, 2020, 6 a.m. 4.8 ppb (5) 0.2 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 21.0 ppb (20) 0.48 ppb (6) N/A 8.0 μg/m3 (34) 34.0
 
Nov. 25, 2020, 5 a.m. 6.4 ppb (7) 0.2 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 17.0 ppb (16) 0.5 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 25, 2020, 4 a.m. 11.0 ppb (11) 0.2 ppb (1) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 13.0 ppb (13) 0.56 ppb (7) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 25, 2020, 3 a.m. 10.5 ppb (10) 0.3 ppb (1) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 15.0 ppb (14) 0.53 ppb (6) N/A 8.0 μg/m3 (34) 34.0
 
Nov. 25, 2020, 2 a.m. 14.4 ppb (14) 0.4 ppb (1) N/A 14.0 ppb (14) N/A 1.0 ppb (2) 15.0 ppb (14) 0.56 ppb (7) N/A 8.0 μg/m3 (34) 34.0
 
Nov. 25, 2020, 1 a.m. 16.2 ppb (16) 0.3 ppb (1) N/A 16.0 ppb (16) N/A 1.0 ppb (2) 15.0 ppb (14) 0.57 ppb (7) N/A 7.0 μg/m3 (30) 30.0
 
Nov. 25, 2020, midnight 10.2 ppb (10) 0.4 ppb (1) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 23.0 ppb (22) 0.51 ppb (6) N/A 5.0 μg/m3 (21) 22.0
 
Nov. 24, 2020, 11 p.m. 5.3 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 30.0 ppb (28) 0.45 ppb (6) N/A 5.0 μg/m3 (21) 28.0
 
Nov. 24, 2020, 10 p.m. 5.0 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (29) 0.45 ppb (6) N/A 5.0 μg/m3 (21) 29.0
 
Nov. 24, 2020, 9 p.m. 6.9 ppb (7) 1.5 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 29.0 ppb (27) 0.49 ppb (6) N/A N/A 27.0
 
Nov. 24, 2020, 8 p.m. 7.1 ppb (7) 1.6 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 29.0 ppb (27) 0.5 ppb (6) N/A 5.0 μg/m3 (21) 27.0
 
Nov. 24, 2020, 7 p.m. 5.3 ppb (5) 1.1 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 28.0 ppb (26) 0.48 ppb (6) N/A 6.0 μg/m3 (25) 26.0
 
Nov. 24, 2020, 6 p.m. 11.8 ppb (12) 3.7 ppb (4) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 19.0 ppb (18) 0.55 ppb (7) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 24, 2020, 5 p.m. 19.1 ppb (19) 7.9 ppb (8) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 10.0 ppb (10) 0.62 ppb (7) N/A 8.0 μg/m3 (34) 34.0
 
Nov. 24, 2020, 4 p.m. 35.4 ppb (34) 21.6 ppb (21) N/A 14.0 ppb (14) N/A 1.0 ppb (2) 2.0 ppb (2) 0.68 ppb (8) N/A 6.0 μg/m3 (25) 34.0
 
Nov. 24, 2020, 3 p.m. 46.8 ppb (45) 34.7 ppb (33) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 0.0 ppb (0) 0.7 ppb (8) N/A 8.0 μg/m3 (34) 45.0
 
Nov. 24, 2020, 2 p.m. 35.9 ppb (34) 24.5 ppb (24) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 0.0 ppb (0) 0.6 ppb (7) N/A 5.0 μg/m3 (21) 34.0
 
Nov. 24, 2020, 1 p.m. 22.1 ppb (21) 12.0 ppb (12) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 0.0 ppb (0) 0.56 ppb (7) N/A 7.0 μg/m3 (30) 30.0
 
Nov. 24, 2020, noon 17.5 ppb (17) 7.9 ppb (8) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 0.0 ppb (0) 0.53 ppb (6) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 24, 2020, 11 a.m. 16.1 ppb (16) 6.2 ppb (6) N/A 10.0 ppb (10) N/A 2.0 ppb (3) 0.0 ppb (0) 0.51 ppb (6) N/A 4.0 μg/m3 (17) 17.0
 
Nov. 24, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Nov. 24, 2020, 9 a.m. 15.9 ppb (15) 3.3 ppb (4) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 0.0 ppb (0) 0.53 ppb (6) N/A 7.0 μg/m3 (30) 30.0
 
Nov. 24, 2020, 8 a.m. 16.1 ppb (16) 3.6 ppb (4) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 0.0 ppb (0) 0.61 ppb (7) N/A 8.0 μg/m3 (34) 34.0
 
Nov. 24, 2020, 7 a.m. 16.9 ppb (16) 3.0 ppb (3) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 0.0 ppb (0) 0.64 ppb (7) N/A 7.0 μg/m3 (30) 30.0
 
Nov. 24, 2020, 6 a.m. 15.3 ppb (15) 1.8 ppb (2) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 2.0 ppb (2) 0.61 ppb (7) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 24, 2020, 5 a.m. 15.5 ppb (15) 1.0 ppb (1) N/A 15.0 ppb (15) N/A 0.0 ppb (0) 3.0 ppb (3) 0.59 ppb (7) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 24, 2020, 4 a.m. 16.3 ppb (16) 1.1 ppb (2) N/A 15.0 ppb (15) N/A 0.0 ppb (0) 4.0 ppb (4) 0.58 ppb (7) N/A 7.0 μg/m3 (30) 30.0
 
Nov. 24, 2020, 3 a.m. 14.1 ppb (14) 0.4 ppb (1) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 9.0 ppb (9) 0.56 ppb (7) N/A 8.0 μg/m3 (34) 34.0
 
Nov. 24, 2020, 2 a.m. 13.1 ppb (13) 0.3 ppb (1) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 13.0 ppb (13) 0.54 ppb (6) N/A 8.0 μg/m3 (34) 34.0
 
Nov. 24, 2020, 1 a.m. 10.9 ppb (11) 0.3 ppb (1) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 18.0 ppb (17) 0.52 ppb (6) N/A 4.0 μg/m3 (17) 17.0
 
Nov. 24, 2020, midnight 5.2 ppb (5) 0.4 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 27.0 ppb (25) 0.44 ppb (5) N/A 3.0 μg/m3 (13) 25.0
 
Nov. 23, 2020, 11 p.m. 3.1 ppb (3) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (31) 0.41 ppb (5) N/A 5.0 μg/m3 (21) 31.0
 
Nov. 23, 2020, 10 p.m. 2.9 ppb (3) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (32) 0.4 ppb (5) N/A 7.0 μg/m3 (30) 32.0
 
Nov. 23, 2020, 9 p.m. 4.5 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 33.0 ppb (31) 0.42 ppb (5) N/A 8.0 μg/m3 (34) 34.0
 
Nov. 23, 2020, 8 p.m. 4.6 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 34.0 ppb (32) 0.41 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 23, 2020, 7 p.m. 6.3 ppb (6) 1.3 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 28.0 ppb (26) 0.43 ppb (5) N/A 8.0 μg/m3 (34) 34.0
 
Nov. 23, 2020, 6 p.m. 7.1 ppb (7) 1.7 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 24.0 ppb (23) 0.43 ppb (5) N/A 8.0 μg/m3 (34) 34.0
 
Nov. 23, 2020, 5 p.m. 9.6 ppb (10) 2.0 ppb (2) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 21.0 ppb (20) 0.52 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 23, 2020, 4 p.m. 12.5 ppb (12) 2.2 ppb (3) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 15.0 ppb (14) 0.49 ppb (6) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 23, 2020, 3 p.m. 13.8 ppb (14) 1.5 ppb (2) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 9.0 ppb (9) 0.5 ppb (6) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 23, 2020, 2 p.m. 10.3 ppb (10) 0.4 ppb (1) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 12.0 ppb (12) 0.45 ppb (6) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 23, 2020, 1 p.m. 6.1 ppb (6) 0.2 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 19.0 ppb (18) 0.41 ppb (5) N/A 7.0 μg/m3 (30) 30.0
 
Nov. 23, 2020, noon 5.5 ppb (6) 0.3 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 19.0 ppb (18) 0.4 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 23, 2020, 11 a.m. 4.2 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 20.0 ppb (19) 0.4 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 23, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Nov. 23, 2020, 9 a.m. 5.7 ppb (6) 0.3 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 18.0 ppb (17) 0.42 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 23, 2020, 8 a.m. 6.3 ppb (6) 0.3 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 13.0 ppb (13) 0.43 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 23, 2020, 7 a.m. 6.7 ppb (7) 0.3 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 14.0 ppb (13) 0.47 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 23, 2020, 6 a.m. 6.8 ppb (7) 0.3 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 14.0 ppb (13) 0.47 ppb (6) N/A 9.0 μg/m3 (38) 38.0