ID: 2504

AQSQID: 110010051

Site Name: Dcnearroad

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

Updated: Jan. 18, 2021, 8:31 p.m.

Location: Washington (Riv Terrace), DC

Reporting: True, Located: True

Current AQI: 5.0

Washington (Riv Terrace) DC, US: 38.894749, -76.953427

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 18, 2021, 7 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.16 ppb (3) N/A 1.0 μg/m3 (5) 5.0
 
Jan. 18, 2021, 6 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.14 ppb (2) N/A -2.0 μg/m3 (0) 3.0
 
Jan. 18, 2021, 5 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.15 ppb (2) N/A 3.0 μg/m3 (13) 13.0
 
Jan. 18, 2021, 4 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.16 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 18, 2021, 3 p.m. N/A N/A N/A 9.0 ppb (9) N/A N/A N/A 0.2 ppb (3) N/A 2.0 μg/m3 (9) 9.0
 
Jan. 18, 2021, 2 p.m. N/A N/A N/A 21.0 ppb (20) N/A N/A N/A 0.4 ppb (5) N/A 7.0 μg/m3 (30) 30.0
 
Jan. 18, 2021, 1 p.m. N/A N/A N/A 29.0 ppb (28) N/A N/A N/A 0.74 ppb (8) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 18, 2021, noon N/A N/A N/A 30.0 ppb (29) N/A N/A N/A 0.65 ppb (8) N/A 7.0 μg/m3 (30) 30.0
 
Jan. 18, 2021, 11 a.m. N/A N/A N/A 31.0 ppb (30) N/A N/A N/A 0.68 ppb (8) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 18, 2021, 10 a.m. N/A N/A N/A 26.0 ppb (25) N/A N/A N/A 0.48 ppb (6) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 18, 2021, 9 a.m. N/A N/A N/A 27.0 ppb (26) N/A N/A N/A 0.58 ppb (7) N/A 4.0 μg/m3 (17) 26.0
 
Jan. 18, 2021, 8 a.m. N/A N/A N/A 24.0 ppb (23) N/A N/A N/A 0.49 ppb (6) N/A 4.0 μg/m3 (17) 23.0
 
Jan. 18, 2021, 7 a.m. N/A N/A N/A 17.0 ppb (17) N/A N/A N/A 0.33 ppb (4) N/A 3.0 μg/m3 (13) 17.0
 
Jan. 18, 2021, 6 a.m. N/A N/A N/A 18.0 ppb (17) N/A N/A N/A 0.36 ppb (5) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 18, 2021, 5 a.m. N/A N/A N/A 17.0 ppb (17) N/A N/A N/A 0.39 ppb (5) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 18, 2021, 4 a.m. N/A N/A N/A 15.0 ppb (15) N/A N/A N/A 0.44 ppb (5) N/A 7.0 μg/m3 (30) 30.0
 
Jan. 18, 2021, 3 a.m. N/A N/A N/A 18.0 ppb (17) N/A N/A N/A 0.55 ppb (7) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 18, 2021, 2 a.m. N/A N/A N/A 16.0 ppb (16) N/A N/A N/A 0.49 ppb (6) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 18, 2021, 1 a.m. N/A N/A N/A 18.0 ppb (17) N/A N/A N/A 0.63 ppb (7) N/A 7.0 μg/m3 (30) 30.0
 
Jan. 18, 2021, midnight N/A N/A N/A N/A N/A N/A N/A 0.43 ppb (5) N/A 3.0 μg/m3 (13) 13.0
 
Jan. 17, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A 0.27 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 17, 2021, 10 p.m. N/A N/A N/A 7.0 ppb (7) N/A N/A N/A 0.21 ppb (3) N/A 2.0 μg/m3 (9) 9.0
 
Jan. 17, 2021, 9 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.22 ppb (3) N/A -1.0 μg/m3 (0) 6.0
 
Jan. 17, 2021, 8 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.22 ppb (3) N/A -1.0 μg/m3 (0) 6.0
 
Jan. 17, 2021, 7 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.21 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 17, 2021, 6 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.19 ppb (3) N/A -3.0 μg/m3 (0) 4.0
 
Jan. 17, 2021, 5 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.2 ppb (3) N/A 2.0 μg/m3 (9) 9.0
 
Jan. 17, 2021, 4 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.24 ppb (3) N/A 3.0 μg/m3 (13) 13.0
 
Jan. 17, 2021, 3 p.m. N/A N/A N/A 7.0 ppb (7) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 17, 2021, 2 p.m. N/A N/A N/A 8.0 ppb (8) N/A N/A N/A 0.28 ppb (4) N/A -1.0 μg/m3 (0) 8.0
 
Jan. 17, 2021, 1 p.m. N/A N/A N/A 10.0 ppb (10) N/A N/A N/A 0.29 ppb (4) N/A 1.0 μg/m3 (5) 10.0
 
Jan. 17, 2021, noon N/A N/A N/A 12.0 ppb (12) N/A N/A N/A 0.28 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 17, 2021, 11 a.m. N/A N/A N/A 10.0 ppb (10) N/A N/A N/A 0.28 ppb (4) N/A 0.0 μg/m3 (0) 10.0
 
Jan. 17, 2021, 10 a.m. N/A N/A N/A 8.0 ppb (8) N/A N/A N/A 0.24 ppb (3) N/A 1.0 μg/m3 (5) 8.0
 
Jan. 17, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A 0.21 ppb (3) N/A 0.0 μg/m3 (0) 3.0
 
Jan. 17, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A 0.23 ppb (3) N/A 3.0 μg/m3 (13) 13.0
 
Jan. 17, 2021, 7 a.m. N/A N/A N/A 9.0 ppb (9) N/A N/A N/A 0.24 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 17, 2021, 6 a.m. N/A N/A N/A 14.0 ppb (14) N/A N/A N/A 0.29 ppb (4) N/A 3.0 μg/m3 (13) 14.0
 
Jan. 17, 2021, 5 a.m. N/A N/A N/A 13.0 ppb (13) N/A N/A N/A 0.2 ppb (3) N/A 3.0 μg/m3 (13) 13.0
 
Jan. 17, 2021, 4 a.m. N/A N/A N/A 11.0 ppb (11) N/A N/A N/A 0.18 ppb (3) N/A 3.0 μg/m3 (13) 13.0
 
Jan. 17, 2021, 3 a.m. N/A N/A N/A 11.0 ppb (11) N/A N/A N/A 0.19 ppb (3) N/A 2.0 μg/m3 (9) 11.0
 
Jan. 17, 2021, 2 a.m. N/A N/A N/A 9.0 ppb (9) N/A N/A N/A 0.18 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2021, 1 a.m. N/A N/A N/A 9.0 ppb (9) N/A N/A N/A 0.19 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2021, midnight N/A N/A N/A 11.0 ppb (11) N/A N/A N/A 0.2 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 16, 2021, 11 p.m. N/A N/A N/A 7.0 ppb (7) N/A N/A N/A 0.17 ppb (3) N/A 2.0 μg/m3 (9) 9.0
 
Jan. 16, 2021, 10 p.m. N/A N/A N/A 8.0 ppb (8) N/A N/A N/A 0.17 ppb (3) N/A 3.0 μg/m3 (13) 13.0
 
Jan. 16, 2021, 9 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.17 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2021, 8 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.15 ppb (2) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 16, 2021, 7 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.14 ppb (2) N/A 1.0 μg/m3 (5) 5.0
 
Jan. 16, 2021, 6 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.14 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 16, 2021, 5 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.15 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2021, 4 p.m. N/A N/A N/A 7.0 ppb (7) N/A N/A N/A 0.16 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 16, 2021, 3 p.m. N/A N/A N/A 8.0 ppb (8) N/A N/A N/A 0.18 ppb (3) N/A -2.0 μg/m3 (0) 8.0
 
Jan. 16, 2021, 2 p.m. N/A N/A N/A 10.0 ppb (10) N/A N/A N/A 0.21 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2021, 1 p.m. N/A N/A N/A 11.0 ppb (11) N/A N/A N/A 0.22 ppb (3) N/A -1.0 μg/m3 (0) 11.0
 
Jan. 16, 2021, noon N/A N/A N/A 11.0 ppb (11) N/A N/A N/A 0.2 ppb (3) N/A 3.0 μg/m3 (13) 13.0
 
Jan. 16, 2021, 11 a.m. N/A N/A N/A 11.0 ppb (11) N/A N/A N/A 0.2 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 16, 2021, 10 a.m. N/A N/A N/A 12.0 ppb (12) N/A N/A N/A 0.18 ppb (3) N/A 0.0 μg/m3 (0) 12.0
 
Jan. 16, 2021, 9 a.m. N/A N/A N/A 14.0 ppb (14) N/A N/A N/A 0.2 ppb (3) N/A 1.0 μg/m3 (5) 14.0
 
Jan. 16, 2021, 8 a.m. N/A N/A N/A 9.0 ppb (9) N/A N/A N/A 0.12 ppb (2) N/A 1.0 μg/m3 (5) 9.0
 
Jan. 16, 2021, 7 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A N/A 0.13 ppb (2) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 16, 2021, 6 a.m. N/A N/A N/A 16.0 ppb (16) N/A N/A N/A 0.22 ppb (3) N/A 16.0 μg/m3 (60) 60.0
 
Jan. 16, 2021, 5 a.m. N/A N/A N/A 14.0 ppb (14) N/A N/A N/A 0.26 ppb (4) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 16, 2021, 4 a.m. N/A N/A N/A 16.0 ppb (16) N/A N/A N/A 0.33 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 16, 2021, 3 a.m. N/A N/A N/A 17.0 ppb (17) N/A N/A N/A 0.43 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 16, 2021, 2 a.m. N/A N/A N/A 15.0 ppb (15) N/A N/A N/A 0.34 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
Jan. 16, 2021, 1 a.m. N/A N/A N/A 18.0 ppb (17) N/A N/A N/A N/A N/A 14.0 μg/m3 (55) 55.0
 
Jan. 16, 2021, midnight N/A N/A N/A 18.0 ppb (17) N/A N/A N/A 0.41 ppb (5) N/A 16.0 μg/m3 (60) 60.0
 
Jan. 15, 2021, 11 p.m. N/A N/A N/A 18.0 ppb (17) N/A N/A N/A 0.43 ppb (5) N/A 14.0 μg/m3 (55) 55.0
 
Jan. 15, 2021, 10 p.m. N/A N/A N/A 12.0 ppb (12) N/A N/A N/A 0.33 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 15, 2021, 9 p.m. N/A N/A N/A 14.0 ppb (14) N/A N/A N/A 0.32 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
Jan. 15, 2021, 8 p.m. N/A N/A N/A 21.0 ppb (20) N/A N/A N/A 0.44 ppb (5) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 15, 2021, 7 p.m. N/A N/A N/A 17.0 ppb (17) N/A N/A N/A 0.32 ppb (4) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 15, 2021, 6 p.m. N/A N/A N/A 16.0 ppb (16) N/A N/A N/A 0.34 ppb (4) N/A 18.0 μg/m3 (64) 64.0
 
Jan. 15, 2021, 5 p.m. N/A N/A N/A 13.0 ppb (13) N/A N/A N/A 0.25 ppb (3) N/A 20.0 μg/m3 (68) 68.0
 
Jan. 15, 2021, 4 p.m. N/A N/A N/A 15.0 ppb (15) N/A N/A N/A 0.27 ppb (4) N/A 21.0 μg/m3 (70) 70.0
 
Jan. 15, 2021, 3 p.m. N/A N/A N/A 19.0 ppb (18) N/A N/A N/A 0.31 ppb (4) N/A 24.0 μg/m3 (77) 77.0
 
Jan. 15, 2021, 2 p.m. N/A N/A N/A 22.0 ppb (21) N/A N/A N/A 0.4 ppb (5) N/A 30.0 μg/m3 (89) 89.0
 
Jan. 15, 2021, 1 p.m. N/A N/A N/A 34.0 ppb (33) N/A N/A N/A 0.79 ppb (10) N/A 30.0 μg/m3 (89) 89.0
 
Jan. 15, 2021, noon N/A N/A N/A 35.0 ppb (34) N/A N/A N/A 0.77 ppb (10) N/A 27.0 μg/m3 (83) 83.0
 
Jan. 15, 2021, 11 a.m. N/A N/A N/A 34.0 ppb (33) N/A N/A N/A 0.83 ppb (10) N/A 28.0 μg/m3 (85) 85.0
 
Jan. 15, 2021, 10 a.m. N/A N/A N/A 31.0 ppb (30) N/A N/A N/A 0.74 ppb (8) N/A 24.0 μg/m3 (77) 77.0
 
Jan. 15, 2021, 9 a.m. N/A N/A N/A 31.0 ppb (30) N/A N/A N/A 0.7 ppb (8) N/A 21.0 μg/m3 (70) 70.0
 
Jan. 15, 2021, 8 a.m. N/A N/A N/A 32.0 ppb (31) N/A N/A N/A 0.69 ppb (8) N/A 21.0 μg/m3 (70) 70.0
 
Jan. 15, 2021, 7 a.m. N/A N/A N/A 33.0 ppb (32) N/A N/A N/A 0.88 ppb (11) N/A 31.0 μg/m3 (91) 91.0
 
Jan. 15, 2021, 6 a.m. N/A N/A N/A 34.0 ppb (33) N/A N/A N/A 0.78 ppb (10) N/A 25.0 μg/m3 (79) 79.0
 
Jan. 15, 2021, 5 a.m. N/A N/A N/A 34.0 ppb (33) N/A N/A N/A 0.81 ppb (10) N/A 26.0 μg/m3 (81) 81.0
 
Jan. 15, 2021, 4 a.m. N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 0.82 ppb (10) N/A 20.0 μg/m3 (68) 68.0
 
Jan. 15, 2021, 3 a.m. N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 0.84 ppb (10) N/A 24.0 μg/m3 (77) 77.0
 
Jan. 15, 2021, 2 a.m. N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 0.69 ppb (8) N/A 25.0 μg/m3 (79) 79.0
 
Jan. 15, 2021, 1 a.m. N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 0.52 ppb (6) N/A 20.0 μg/m3 (68) 68.0
 
Jan. 15, 2021, midnight N/A N/A N/A 34.0 ppb (33) N/A N/A N/A 0.41 ppb (5) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 14, 2021, 11 p.m. N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 0.45 ppb (6) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 14, 2021, 10 p.m. N/A N/A N/A 42.0 ppb (40) N/A N/A N/A 0.97 ppb (12) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 14, 2021, 9 p.m. N/A N/A N/A 29.0 ppb (28) N/A N/A N/A 0.34 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 14, 2021, 8 p.m. N/A N/A N/A 12.0 ppb (12) N/A N/A N/A 0.03 ppb (0) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 14, 2021, 7 p.m. N/A N/A N/A 13.0 ppb (13) N/A N/A N/A 0.09 ppb (2) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 14, 2021, 6 p.m. N/A N/A N/A 11.0 ppb (11) N/A N/A N/A 0.03 ppb (0) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 14, 2021, 5 p.m. N/A N/A N/A 12.0 ppb (12) N/A N/A N/A 0.04 ppb (0) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 14, 2021, 4 p.m. N/A N/A N/A 23.0 ppb (22) N/A N/A N/A N/A N/A 13.0 μg/m3 (53) 53.0
 
Jan. 14, 2021, 3 p.m. N/A N/A N/A 41.0 ppb (39) N/A N/A N/A 0.84 ppb (10) N/A 24.0 μg/m3 (77) 77.0
 
Jan. 14, 2021, 2 p.m. N/A N/A N/A 46.0 ppb (44) N/A N/A N/A 1.3 ppb (15) N/A 39.0 μg/m3 (110) 110.0
 
Jan. 14, 2021, 1 p.m. N/A N/A N/A 42.0 ppb (40) N/A N/A N/A 1.52 ppb (18) N/A 27.0 μg/m3 (83) 83.0
 
Jan. 14, 2021, noon N/A N/A N/A 42.0 ppb (40) N/A N/A N/A 1.38 ppb (16) N/A 28.0 μg/m3 (85) 85.0
 
Jan. 14, 2021, 11 a.m. N/A N/A N/A 35.0 ppb (34) N/A N/A N/A 1.19 ppb (14) N/A 29.0 μg/m3 (87) 87.0
 
Jan. 14, 2021, 10 a.m. N/A N/A N/A 30.0 ppb (29) N/A N/A N/A 0.91 ppb (11) N/A 25.0 μg/m3 (79) 79.0
 
Jan. 14, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A 0.9 ppb (11) N/A 22.0 μg/m3 (72) 72.0
 
Jan. 14, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A 0.97 ppb (12) N/A 29.0 μg/m3 (87) 87.0
 
Jan. 14, 2021, 7 a.m. N/A N/A N/A 30.0 ppb (29) N/A N/A N/A 1.03 ppb (12) N/A 25.0 μg/m3 (79) 79.0
 
Jan. 14, 2021, 6 a.m. N/A N/A N/A 29.0 ppb (28) N/A N/A N/A 0.88 ppb (11) N/A 21.0 μg/m3 (70) 70.0
 
Jan. 14, 2021, 5 a.m. N/A N/A N/A 30.0 ppb (29) N/A N/A N/A 0.87 ppb (11) N/A 26.0 μg/m3 (81) 81.0
 
Jan. 14, 2021, 4 a.m. N/A N/A N/A 33.0 ppb (32) N/A N/A N/A 0.84 ppb (10) N/A 21.0 μg/m3 (70) 70.0
 
Jan. 14, 2021, 3 a.m. N/A N/A N/A 37.0 ppb (35) N/A N/A N/A 1.19 ppb (14) N/A 30.0 μg/m3 (89) 89.0
 
Jan. 14, 2021, 2 a.m. N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 1.04 ppb (12) N/A 30.0 μg/m3 (89) 89.0
 
Jan. 14, 2021, 1 a.m. N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 0.81 ppb (10) N/A 23.0 μg/m3 (74) 74.0
 
Jan. 14, 2021, midnight N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 0.78 ppb (10) N/A 18.0 μg/m3 (64) 64.0
 
Jan. 13, 2021, 11 p.m. N/A N/A N/A 34.0 ppb (33) N/A N/A N/A 0.66 ppb (8) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 13, 2021, 10 p.m. N/A N/A N/A 33.0 ppb (32) N/A N/A N/A 0.53 ppb (6) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 13, 2021, 9 p.m. N/A N/A N/A 12.0 ppb (12) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 13, 2021, 8 p.m. N/A N/A N/A 10.0 ppb (10) N/A N/A N/A N/A N/A 7.0 μg/m3 (30) 30.0
 
Jan. 13, 2021, 7 p.m. N/A N/A N/A 16.0 ppb (16) N/A N/A N/A 0.06 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 13, 2021, 6 p.m. N/A N/A N/A 14.0 ppb (14) N/A N/A N/A 0.03 ppb (0) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 13, 2021, 5 p.m. N/A N/A N/A 18.0 ppb (17) N/A N/A N/A 0.07 ppb (2) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 13, 2021, 4 p.m. N/A N/A N/A 24.0 ppb (23) N/A N/A N/A 0.16 ppb (3) N/A N/A 23.0
 
Jan. 13, 2021, 3 p.m. N/A N/A N/A 34.0 ppb (33) N/A N/A N/A 0.43 ppb (5) N/A N/A 33.0
 
Jan. 13, 2021, 2 p.m. N/A N/A N/A 49.0 ppb (47) N/A N/A N/A 1.68 ppb (20) N/A 34.0 μg/m3 (98) 98.0
 
Jan. 13, 2021, 1 p.m. N/A N/A N/A 52.0 ppb (50) N/A N/A N/A 2.03 ppb (23) N/A 30.0 μg/m3 (89) 89.0
 
Jan. 13, 2021, noon N/A N/A N/A 58.0 ppb (56) N/A N/A N/A 2.02 ppb (23) N/A 29.0 μg/m3 (87) 87.0
 
Jan. 13, 2021, 11 a.m. N/A N/A N/A 47.0 ppb (45) N/A N/A N/A 1.73 ppb (20) N/A 30.0 μg/m3 (89) 89.0
 
Jan. 13, 2021, 10 a.m. N/A N/A N/A 40.0 ppb (38) N/A N/A N/A 1.65 ppb (19) N/A 29.0 μg/m3 (87) 87.0
 
Jan. 13, 2021, 9 a.m. N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 1.48 ppb (18) N/A 28.0 μg/m3 (85) 85.0
 
Jan. 13, 2021, 8 a.m. N/A N/A N/A 33.0 ppb (32) N/A N/A N/A 1.39 ppb (16) N/A 22.0 μg/m3 (72) 72.0
 
Jan. 13, 2021, 7 a.m. N/A N/A N/A 35.0 ppb (34) N/A N/A N/A 1.47 ppb (18) N/A 24.0 μg/m3 (77) 77.0
 
Jan. 13, 2021, 6 a.m. N/A N/A N/A 34.0 ppb (33) N/A N/A N/A 1.4 ppb (16) N/A 23.0 μg/m3 (74) 74.0
 
Jan. 13, 2021, 5 a.m. N/A N/A N/A 35.0 ppb (34) N/A N/A N/A 1.18 ppb (14) N/A 20.0 μg/m3 (68) 68.0
 
Jan. 13, 2021, 4 a.m. N/A N/A N/A 35.0 ppb (34) N/A N/A N/A 1.32 ppb (15) N/A 22.0 μg/m3 (72) 72.0
 
Jan. 13, 2021, 3 a.m. N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 1.56 ppb (19) N/A 29.0 μg/m3 (87) 87.0
 
Jan. 13, 2021, 2 a.m. N/A N/A N/A 35.0 ppb (34) N/A N/A N/A 1.35 ppb (16) N/A 22.0 μg/m3 (72) 72.0
 
Jan. 13, 2021, 1 a.m. N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 1.36 ppb (16) N/A 19.0 μg/m3 (66) 66.0
 
Jan. 13, 2021, midnight N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 1.29 ppb (15) N/A 20.0 μg/m3 (68) 68.0
 
Jan. 12, 2021, 11 p.m. N/A N/A N/A 37.0 ppb (35) N/A N/A N/A 1.24 ppb (14) N/A 18.0 μg/m3 (64) 64.0
 
Jan. 12, 2021, 10 p.m. N/A N/A N/A 25.0 ppb (24) N/A N/A N/A 0.44 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 12, 2021, 9 p.m. N/A N/A N/A 11.0 ppb (11) N/A N/A N/A 0.08 ppb (2) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 12, 2021, 8 p.m. N/A N/A N/A 8.0 ppb (8) N/A N/A N/A 0.01 ppb (0) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 12, 2021, 7 p.m. N/A N/A N/A 9.0 ppb (9) N/A N/A N/A 0.01 ppb (0) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 12, 2021, 6 p.m. N/A N/A N/A 10.0 ppb (10) N/A N/A N/A 0.02 ppb (0) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 12, 2021, 5 p.m. N/A N/A N/A 13.0 ppb (13) N/A N/A N/A 0.09 ppb (2) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 12, 2021, 4 p.m. N/A N/A N/A 14.0 ppb (14) N/A N/A N/A 0.11 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 12, 2021, 3 p.m. N/A N/A N/A 24.0 ppb (23) N/A N/A N/A 0.29 ppb (4) N/A 19.0 μg/m3 (66) 66.0
 
Jan. 12, 2021, 2 p.m. N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 0.79 ppb (10) N/A 23.0 μg/m3 (74) 74.0
 
Jan. 12, 2021, 1 p.m. N/A N/A N/A 47.0 ppb (45) N/A N/A N/A 1.65 ppb (19) N/A 28.0 μg/m3 (85) 85.0
 
Jan. 12, 2021, noon N/A N/A N/A 47.0 ppb (45) N/A N/A N/A 1.87 ppb (22) N/A 29.0 μg/m3 (87) 87.0
 
Jan. 12, 2021, 11 a.m. N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 1.53 ppb (18) N/A 24.0 μg/m3 (77) 77.0
 
Jan. 12, 2021, 10 a.m. N/A N/A N/A 31.0 ppb (30) N/A N/A N/A 1.23 ppb (14) N/A 19.0 μg/m3 (66) 66.0
 
Jan. 12, 2021, 9 a.m. N/A N/A N/A 33.0 ppb (32) N/A N/A N/A 1.23 ppb (14) N/A 23.0 μg/m3 (74) 74.0
 
Jan. 12, 2021, 8 a.m. N/A N/A N/A 34.0 ppb (33) N/A N/A N/A 1.28 ppb (15) N/A 22.0 μg/m3 (72) 72.0
 
Jan. 12, 2021, 7 a.m. N/A N/A N/A 30.0 ppb (29) N/A N/A N/A 1.36 ppb (16) N/A 26.0 μg/m3 (81) 81.0
 
Jan. 12, 2021, 6 a.m. N/A N/A N/A 28.0 ppb (27) N/A N/A N/A 1.39 ppb (16) N/A 20.0 μg/m3 (68) 68.0
 
Jan. 12, 2021, 5 a.m. N/A N/A N/A 26.0 ppb (25) N/A N/A N/A 1.03 ppb (12) N/A 22.0 μg/m3 (72) 72.0
 
Jan. 12, 2021, 4 a.m. N/A N/A N/A 26.0 ppb (25) N/A N/A N/A 1.04 ppb (12) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 12, 2021, 3 a.m. N/A N/A N/A 29.0 ppb (28) N/A N/A N/A 1.31 ppb (15) N/A 14.0 μg/m3 (55) 55.0
 
Jan. 12, 2021, 2 a.m. N/A N/A N/A 31.0 ppb (30) N/A N/A N/A 1.19 ppb (14) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 12, 2021, 1 a.m. N/A N/A N/A 32.0 ppb (31) N/A N/A N/A 1.16 ppb (14) N/A 16.0 μg/m3 (60) 60.0
 
Jan. 12, 2021, midnight N/A N/A N/A 33.0 ppb (32) N/A N/A N/A 1.09 ppb (13) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 11, 2021, 11 p.m. N/A N/A N/A 34.0 ppb (33) N/A N/A N/A 0.86 ppb (11) N/A 14.0 μg/m3 (55) 55.0
 
Jan. 11, 2021, 10 p.m. N/A N/A N/A 31.0 ppb (30) N/A N/A N/A 0.44 ppb (5) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 11, 2021, 9 p.m. N/A N/A N/A 25.0 ppb (24) N/A N/A N/A 0.25 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 11, 2021, 8 p.m. N/A N/A N/A 27.0 ppb (26) N/A N/A N/A 0.31 ppb (4) N/A 11.0 μg/m3 (46) 46.0