ID: 2413

AQSQID: 440070030

Site Name: Near Road

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

Updated: Oct. 1, 2020, 2:39 a.m.

Location: Providence (Downtown), RI

Reporting: True, Located: True

Current AQI: 29.0

Providence (Downtown) RI, US: 41.829495, -71.417457

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Oct. 1, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 0.69 ppb (8) N/A 7.0 μg/m3 (29) 29.0
 
Oct. 1, 2020, midnight N/A N/A N/A N/A N/A N/A N/A 0.72 ppb (8) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 30, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A 0.75 ppb (8) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 30, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A 0.57 ppb (6) N/A 3.0 μg/m3 (12) 12.0
 
Sept. 30, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A 0.48 ppb (5) N/A 2.0 μg/m3 (8) 8.0
 
Sept. 30, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A 0.45 ppb (5) N/A 1.0 μg/m3 (4) 5.0
 
Sept. 30, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A 0.47 ppb (5) N/A 1.0 μg/m3 (4) 5.0
 
Sept. 30, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A 0.42 ppb (5) N/A 3.0 μg/m3 (12) 12.0
 
Sept. 30, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A 0.36 ppb (4) N/A 3.0 μg/m3 (12) 12.0
 
Sept. 30, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A 0.33 ppb (4) N/A 3.0 μg/m3 (12) 12.0
 
Sept. 30, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A 0.41 ppb (5) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 30, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A 0.34 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 30, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A 0.38 ppb (4) N/A 13.0 μg/m3 (52) 52.0
 
Sept. 30, 2020, noon N/A N/A N/A N/A N/A N/A N/A 0.42 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 30, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A 0.23 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 30, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A 0.21 ppb (2) N/A 2.0 μg/m3 (8) 8.0
 
Sept. 30, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (2) N/A 2.0 μg/m3 (8) 8.0
 
Sept. 30, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A 0.18 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 30, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.15 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 30, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A 0.16 ppb (2) N/A 2.0 μg/m3 (8) 8.0
 
Sept. 30, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A 0.23 ppb (3) N/A 1.0 μg/m3 (4) 4.0
 
Sept. 30, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (2) N/A 2.0 μg/m3 (8) 8.0
 
Sept. 30, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A 0.31 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 30, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A 0.38 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 30, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 0.41 ppb (5) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 30, 2020, midnight N/A N/A N/A N/A N/A N/A N/A 0.47 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 29, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A 0.61 ppb (7) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 29, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A 0.68 ppb (8) N/A N/A 8.0
 
Sept. 29, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A 0.59 ppb (7) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 29, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A 0.42 ppb (5) N/A 3.0 μg/m3 (12) 12.0
 
Sept. 29, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A 0.34 ppb (4) N/A 3.0 μg/m3 (12) 12.0
 
Sept. 29, 2020, 6 p.m. 19.8 ppb (18) 10.2 ppb (9) N/A 10.0 ppb (9) N/A N/A N/A 0.39 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 29, 2020, 5 p.m. 22.2 ppb (21) 11.2 ppb (10) N/A 11.0 ppb (10) N/A N/A N/A 0.37 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 29, 2020, 4 p.m. 17.8 ppb (16) 10.8 ppb (10) N/A 7.0 ppb (6) N/A N/A N/A 0.33 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 29, 2020, 3 p.m. 29.2 ppb (27) 19.0 ppb (18) N/A 10.0 ppb (9) N/A N/A N/A 0.47 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 29, 2020, 2 p.m. 35.0 ppb (32) 23.8 ppb (22) N/A 11.0 ppb (10) N/A N/A N/A 0.51 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 29, 2020, 1 p.m. 41.0 ppb (38) 28.2 ppb (26) N/A 13.0 ppb (12) N/A N/A N/A 0.54 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 29, 2020, noon 42.1 ppb (39) 26.8 ppb (25) N/A 15.0 ppb (14) N/A N/A N/A 0.54 ppb (6) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 29, 2020, 11 a.m. 37.3 ppb (35) 25.7 ppb (24) N/A 12.0 ppb (11) N/A N/A N/A 0.49 ppb (5) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 29, 2020, 10 a.m. 53.0 ppb (49) 34.5 ppb (32) N/A 19.0 ppb (18) N/A N/A N/A 0.59 ppb (7) N/A 7.0 μg/m3 (29) 32.0
 
Sept. 29, 2020, 9 a.m. 40.9 ppb (38) 29.7 ppb (28) N/A 11.0 ppb (10) N/A N/A N/A 0.52 ppb (6) N/A 6.0 μg/m3 (25) 28.0
 
Sept. 29, 2020, 8 a.m. 27.2 ppb (25) 16.7 ppb (15) N/A 11.0 ppb (10) N/A N/A N/A 0.34 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 29, 2020, 7 a.m. 30.8 ppb (29) 19.9 ppb (18) N/A 11.0 ppb (10) N/A N/A N/A 0.3 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 29, 2020, 6 a.m. 21.2 ppb (20) 11.5 ppb (11) N/A 10.0 ppb (9) N/A N/A N/A 0.3 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 29, 2020, 5 a.m. 19.2 ppb (18) 8.6 ppb (8) N/A 11.0 ppb (10) N/A N/A N/A 0.31 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 29, 2020, 4 a.m. 13.3 ppb (12) 6.5 ppb (6) N/A 7.0 ppb (6) N/A N/A N/A 0.32 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 29, 2020, 3 a.m. 17.1 ppb (16) 8.0 ppb (7) N/A 9.0 ppb (8) N/A N/A N/A 0.48 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 29, 2020, 2 a.m. 21.8 ppb (20) 10.9 ppb (10) N/A 11.0 ppb (10) N/A N/A N/A 0.56 ppb (6) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 29, 2020, 1 a.m. 27.5 ppb (25) 16.0 ppb (15) N/A 12.0 ppb (11) N/A N/A N/A 0.6 ppb (7) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 29, 2020, midnight 25.1 ppb (23) 14.3 ppb (13) N/A 11.0 ppb (10) N/A N/A N/A 0.61 ppb (7) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 28, 2020, 11 p.m. 22.3 ppb (21) 13.2 ppb (12) N/A 9.0 ppb (8) N/A N/A N/A 0.59 ppb (7) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 28, 2020, 10 p.m. 21.5 ppb (20) 12.8 ppb (12) N/A 9.0 ppb (8) N/A N/A N/A 0.52 ppb (6) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 28, 2020, 9 p.m. 10.7 ppb (10) 4.6 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A 0.31 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 28, 2020, 8 p.m. 11.2 ppb (10) 4.1 ppb (4) N/A 7.0 ppb (6) N/A N/A N/A 0.28 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 28, 2020, 7 p.m. 13.5 ppb (12) 6.0 ppb (6) N/A 8.0 ppb (7) N/A N/A N/A 0.3 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 28, 2020, 6 p.m. 15.8 ppb (15) 7.0 ppb (6) N/A 9.0 ppb (8) N/A N/A N/A 0.31 ppb (3) N/A 2.0 μg/m3 (8) 8.0
 
Sept. 28, 2020, 5 p.m. 15.3 ppb (14) 8.3 ppb (8) N/A 7.0 ppb (6) N/A N/A N/A 0.29 ppb (3) N/A 2.0 μg/m3 (8) 8.0
 
Sept. 28, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
Sept. 28, 2020, 3 p.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
 
Sept. 28, 2020, 2 p.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
 
Sept. 28, 2020, 1 p.m. 28.6 ppb (26) 20.2 ppb (19) N/A 8.0 ppb (7) N/A N/A N/A 0.43 ppb (5) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 28, 2020, noon 39.3 ppb (36) 29.1 ppb (27) N/A 10.0 ppb (9) N/A N/A N/A 0.48 ppb (5) N/A 6.0 μg/m3 (25) 27.0
 
Sept. 28, 2020, 11 a.m. 30.7 ppb (28) 20.4 ppb (19) N/A 10.0 ppb (9) N/A N/A N/A 0.46 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 28, 2020, 10 a.m. 28.9 ppb (27) 21.0 ppb (19) N/A 8.0 ppb (7) N/A N/A N/A 0.44 ppb (5) N/A 3.0 μg/m3 (12) 19.0
 
Sept. 28, 2020, 9 a.m. 21.0 ppb (19) 14.3 ppb (13) N/A 7.0 ppb (6) N/A N/A N/A 0.37 ppb (4) N/A 3.0 μg/m3 (12) 13.0
 
Sept. 28, 2020, 8 a.m. 12.0 ppb (11) 7.2 ppb (7) N/A 5.0 ppb (5) N/A N/A N/A 0.23 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 28, 2020, 7 a.m. 5.8 ppb (5) 2.6 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A 0.19 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 28, 2020, 6 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
 
Sept. 28, 2020, 5 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
 
Sept. 28, 2020, 4 a.m. 10.6 ppb (10) 2.7 ppb (3) N/A 8.0 ppb (7) N/A N/A N/A 0.26 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 28, 2020, 3 a.m. 7.9 ppb (7) 1.6 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.3 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 28, 2020, 2 a.m. 12.3 ppb (11) 4.5 ppb (4) N/A 8.0 ppb (7) N/A N/A N/A 0.48 ppb (5) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 28, 2020, 1 a.m. 21.4 ppb (20) 12.6 ppb (12) N/A 9.0 ppb (8) N/A N/A N/A 0.79 ppb (9) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 28, 2020, midnight 17.4 ppb (16) 7.0 ppb (6) N/A 11.0 ppb (10) N/A N/A N/A 0.52 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 27, 2020, 11 p.m. 18.4 ppb (17) 8.5 ppb (8) N/A 10.0 ppb (9) N/A N/A N/A 0.59 ppb (7) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 27, 2020, 10 p.m. 16.7 ppb (15) 7.0 ppb (6) N/A 10.0 ppb (9) N/A N/A N/A 0.55 ppb (6) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 27, 2020, 9 p.m. 15.1 ppb (14) 6.3 ppb (6) N/A 9.0 ppb (8) N/A N/A N/A 0.55 ppb (6) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 27, 2020, 8 p.m. 7.1 ppb (7) 2.6 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A 0.3 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 27, 2020, 7 p.m. 13.9 ppb (13) 6.7 ppb (6) N/A 7.0 ppb (6) N/A N/A N/A 0.53 ppb (6) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 27, 2020, 6 p.m. 11.9 ppb (11) 4.7 ppb (4) N/A 7.0 ppb (6) N/A N/A N/A 0.38 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 27, 2020, 5 p.m. 8.7 ppb (8) 3.8 ppb (4) N/A 5.0 ppb (5) N/A N/A N/A 0.35 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 27, 2020, 4 p.m. 8.1 ppb (8) 3.2 ppb (3) N/A 5.0 ppb (5) N/A N/A N/A 0.33 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 27, 2020, 3 p.m. 10.2 ppb (9) 4.9 ppb (5) N/A 5.0 ppb (5) N/A N/A N/A 0.37 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 27, 2020, 2 p.m. 15.1 ppb (14) 8.9 ppb (8) N/A 6.0 ppb (6) N/A N/A N/A 0.44 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 27, 2020, 1 p.m. 11.5 ppb (11) 6.0 ppb (6) N/A 6.0 ppb (6) N/A N/A N/A 0.39 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 27, 2020, noon 11.0 ppb (10) 5.0 ppb (5) N/A 6.0 ppb (6) N/A N/A N/A 0.32 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 27, 2020, 11 a.m. 5.7 ppb (5) 2.1 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A 0.23 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 27, 2020, 10 a.m. 3.7 ppb (3) 1.2 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.19 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 27, 2020, 9 a.m. 2.6 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A 0.2 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 27, 2020, 8 a.m. 8.2 ppb (8) 2.6 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A 0.26 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 27, 2020, 7 a.m. 10.7 ppb (10) 5.1 ppb (5) N/A 6.0 ppb (6) N/A N/A N/A 0.4 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 27, 2020, 6 a.m. 12.6 ppb (12) 4.6 ppb (4) N/A 8.0 ppb (7) N/A N/A N/A 0.54 ppb (6) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 27, 2020, 5 a.m. 6.9 ppb (6) 2.6 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A 0.32 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 27, 2020, 4 a.m. 10.5 ppb (10) 4.5 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A 0.48 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 27, 2020, 3 a.m. 17.5 ppb (16) 7.9 ppb (7) N/A 10.0 ppb (9) N/A N/A N/A 0.8 ppb (9) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 27, 2020, 2 a.m. 19.0 ppb (18) 10.2 ppb (9) N/A 9.0 ppb (8) N/A N/A N/A 0.68 ppb (8) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 27, 2020, 1 a.m. 21.8 ppb (20) 11.1 ppb (10) N/A 11.0 ppb (10) N/A N/A N/A 0.79 ppb (9) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 27, 2020, midnight 27.1 ppb (25) 13.5 ppb (12) N/A 14.0 ppb (13) N/A N/A N/A 0.77 ppb (9) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 26, 2020, 11 p.m. 22.2 ppb (21) 10.0 ppb (9) N/A 12.0 ppb (11) N/A N/A N/A 0.7 ppb (8) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 26, 2020, 10 p.m. 25.7 ppb (24) 12.1 ppb (11) N/A 14.0 ppb (13) N/A N/A N/A 0.62 ppb (7) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 26, 2020, 9 p.m. 19.6 ppb (18) 8.8 ppb (8) N/A 11.0 ppb (10) N/A N/A N/A 0.63 ppb (7) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 26, 2020, 8 p.m. 9.4 ppb (9) 3.7 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A 0.38 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 26, 2020, 7 p.m. 6.8 ppb (6) 2.5 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A 0.32 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 26, 2020, 6 p.m. 5.0 ppb (5) 1.9 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A 0.29 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 26, 2020, 5 p.m. 5.2 ppb (5) 1.8 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A 0.29 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 26, 2020, 4 p.m. 12.6 ppb (12) 4.6 ppb (4) N/A 8.0 ppb (7) N/A N/A N/A 0.39 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 26, 2020, 3 p.m. 15.7 ppb (15) 7.4 ppb (7) N/A 8.0 ppb (7) N/A N/A N/A 0.45 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 26, 2020, 2 p.m. 16.8 ppb (16) 8.9 ppb (8) N/A 8.0 ppb (7) N/A N/A N/A 0.43 ppb (5) N/A 16.0 μg/m3 (59) 59.0
 
Sept. 26, 2020, 1 p.m. 25.8 ppb (24) 15.7 ppb (15) N/A 10.0 ppb (9) N/A N/A N/A 0.55 ppb (6) N/A 20.0 μg/m3 (67) 67.0
 
Sept. 26, 2020, noon 39.8 ppb (37) 21.5 ppb (20) N/A 18.0 ppb (17) N/A N/A N/A 0.62 ppb (7) N/A 16.0 μg/m3 (59) 59.0
 
Sept. 26, 2020, 11 a.m. 42.8 ppb (40) 20.9 ppb (19) N/A 22.0 ppb (20) N/A N/A N/A 0.7 ppb (8) N/A 20.0 μg/m3 (67) 67.0
 
Sept. 26, 2020, 10 a.m. 29.2 ppb (27) 14.0 ppb (13) N/A 15.0 ppb (14) N/A N/A N/A 0.54 ppb (6) N/A 20.0 μg/m3 (67) 67.0
 
Sept. 26, 2020, 9 a.m. 17.0 ppb (16) 7.5 ppb (7) N/A 10.0 ppb (9) N/A N/A N/A 0.45 ppb (5) N/A 17.0 μg/m3 (61) 61.0
 
Sept. 26, 2020, 8 a.m. 13.8 ppb (13) 5.3 ppb (5) N/A 9.0 ppb (8) N/A N/A N/A 0.39 ppb (4) N/A 21.0 μg/m3 (69) 69.0
 
Sept. 26, 2020, 7 a.m. 13.5 ppb (12) 6.3 ppb (6) N/A 7.0 ppb (6) N/A N/A N/A 0.58 ppb (6) N/A 20.0 μg/m3 (67) 67.0
 
Sept. 26, 2020, 6 a.m. 16.3 ppb (15) 6.2 ppb (6) N/A 10.0 ppb (9) N/A N/A N/A 0.66 ppb (7) N/A 22.0 μg/m3 (71) 71.0
 
Sept. 26, 2020, 5 a.m. 14.2 ppb (13) 5.9 ppb (5) N/A 8.0 ppb (7) N/A N/A N/A 0.79 ppb (9) N/A 17.0 μg/m3 (61) 61.0
 
Sept. 26, 2020, 4 a.m. 16.3 ppb (15) 6.3 ppb (6) N/A 10.0 ppb (9) N/A N/A N/A 0.6 ppb (7) N/A 22.0 μg/m3 (71) 71.0
 
Sept. 26, 2020, 3 a.m. 23.3 ppb (22) 9.1 ppb (8) N/A 14.0 ppb (13) N/A N/A N/A 0.79 ppb (9) N/A 25.0 μg/m3 (78) 78.0
 
Sept. 26, 2020, 2 a.m. 26.9 ppb (25) 12.7 ppb (12) N/A 14.0 ppb (13) N/A N/A N/A 0.86 ppb (10) N/A 22.0 μg/m3 (71) 71.0
 
Sept. 26, 2020, 1 a.m. 25.4 ppb (24) 8.3 ppb (8) N/A 17.0 ppb (16) N/A N/A N/A 0.77 ppb (9) N/A 22.0 μg/m3 (71) 71.0
 
Sept. 26, 2020, midnight 19.8 ppb (18) 3.9 ppb (4) N/A 16.0 ppb (15) N/A N/A N/A 0.7 ppb (8) N/A 21.0 μg/m3 (69) 69.0
 
Sept. 25, 2020, 11 p.m. 24.4 ppb (23) 7.8 ppb (7) N/A 17.0 ppb (16) N/A N/A N/A 0.81 ppb (9) N/A 18.0 μg/m3 (63) 63.0
 
Sept. 25, 2020, 10 p.m. 13.2 ppb (12) 1.8 ppb (2) N/A 12.0 ppb (11) N/A N/A N/A 0.53 ppb (6) N/A 19.0 μg/m3 (65) 65.0
 
Sept. 25, 2020, 9 p.m. 11.6 ppb (11) 1.6 ppb (1) N/A 10.0 ppb (9) N/A N/A N/A 0.5 ppb (6) N/A 13.0 μg/m3 (52) 52.0
 
Sept. 25, 2020, 8 p.m. 17.6 ppb (16) 5.6 ppb (5) N/A 12.0 ppb (11) N/A N/A N/A 0.61 ppb (7) N/A 13.0 μg/m3 (52) 52.0
 
Sept. 25, 2020, 7 p.m. 10.7 ppb (10) 3.2 ppb (3) N/A 8.0 ppb (7) N/A N/A N/A 0.46 ppb (5) N/A 13.0 μg/m3 (52) 52.0
 
Sept. 25, 2020, 6 p.m. 13.6 ppb (13) 4.0 ppb (4) N/A 10.0 ppb (9) N/A N/A N/A 0.45 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 25, 2020, 5 p.m. 24.7 ppb (23) 14.1 ppb (13) N/A 11.0 ppb (10) N/A N/A N/A 0.62 ppb (7) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 25, 2020, 4 p.m. 40.3 ppb (37) 22.0 ppb (20) N/A 18.0 ppb (17) N/A N/A N/A 0.7 ppb (8) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 25, 2020, 3 p.m. 32.4 ppb (30) 17.7 ppb (16) N/A 15.0 ppb (14) N/A N/A N/A 0.68 ppb (8) N/A 15.0 μg/m3 (56) 56.0
 
Sept. 25, 2020, 2 p.m. 50.4 ppb (47) 28.1 ppb (26) N/A 22.0 ppb (20) N/A N/A N/A 0.76 ppb (8) N/A 22.0 μg/m3 (71) 71.0
 
Sept. 25, 2020, 1 p.m. 65.9 ppb (63) 38.1 ppb (35) N/A 28.0 ppb (26) N/A N/A N/A 0.96 ppb (11) N/A 18.0 μg/m3 (63) 63.0
 
Sept. 25, 2020, noon 79.1 ppb (77) 54.1 ppb (50) N/A 25.0 ppb (23) N/A N/A N/A 1.05 ppb (12) N/A 20.0 μg/m3 (67) 67.0
 
Sept. 25, 2020, 11 a.m. 81.0 ppb (79) 60.6 ppb (57) N/A 20.0 ppb (19) N/A N/A N/A 1.26 ppb (14) N/A 20.0 μg/m3 (67) 67.0
 
Sept. 25, 2020, 10 a.m. 101.3 ppb (100) 79.8 ppb (77) N/A 22.0 ppb (20) N/A N/A N/A 1.37 ppb (15) N/A 16.0 μg/m3 (59) 77.0
 
Sept. 25, 2020, 9 a.m. 61.8 ppb (58) 40.8 ppb (38) N/A 21.0 ppb (19) N/A N/A N/A 0.94 ppb (10) N/A 14.0 μg/m3 (54) 54.0
 
Sept. 25, 2020, 8 a.m. 39.1 ppb (36) 24.2 ppb (22) N/A 15.0 ppb (14) N/A N/A N/A 0.7 ppb (8) N/A 17.0 μg/m3 (61) 61.0
 
Sept. 25, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (59) 59.0
 
Sept. 25, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (67) 67.0
 
Sept. 25, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (65) 65.0
 
Sept. 25, 2020, 4 a.m. 31.0 ppb (29) 11.0 ppb (10) N/A 20.0 ppb (19) N/A N/A N/A 0.58 ppb (6) N/A 19.0 μg/m3 (65) 65.0
 
Sept. 25, 2020, 3 a.m. 35.4 ppb (33) 14.7 ppb (14) N/A 21.0 ppb (19) N/A N/A N/A 0.96 ppb (11) N/A 17.0 μg/m3 (61) 61.0
 
Sept. 25, 2020, 2 a.m. 31.9 ppb (30) 13.2 ppb (12) N/A 19.0 ppb (18) N/A N/A N/A 0.9 ppb (10) N/A 15.0 μg/m3 (56) 56.0
 
Sept. 25, 2020, 1 a.m. 47.7 ppb (44) 20.7 ppb (19) N/A 27.0 ppb (25) N/A N/A N/A 1.01 ppb (11) N/A 20.0 μg/m3 (67) 67.0
 
Sept. 25, 2020, midnight 33.4 ppb (31) 12.3 ppb (11) N/A 21.0 ppb (19) N/A N/A N/A 0.88 ppb (10) N/A 14.0 μg/m3 (54) 54.0
 
Sept. 24, 2020, 11 p.m. 34.6 ppb (32) 13.9 ppb (13) N/A 21.0 ppb (19) N/A N/A N/A 0.82 ppb (9) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 24, 2020, 10 p.m. 30.8 ppb (29) 12.6 ppb (12) N/A 18.0 ppb (17) N/A N/A N/A 0.79 ppb (9) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 24, 2020, 9 p.m. 37.1 ppb (34) 16.0 ppb (15) N/A 21.0 ppb (19) N/A N/A N/A 0.82 ppb (9) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 24, 2020, 8 p.m. 28.4 ppb (26) 14.6 ppb (14) N/A 14.0 ppb (13) N/A N/A N/A 0.62 ppb (7) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 24, 2020, 7 p.m. 38.1 ppb (35) 19.6 ppb (18) N/A 18.0 ppb (17) N/A N/A N/A 0.74 ppb (8) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 24, 2020, 6 p.m. 40.2 ppb (37) 27.0 ppb (25) N/A 13.0 ppb (12) N/A N/A N/A 0.73 ppb (8) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 24, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Sept. 24, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (61) 61.0
 
Sept. 24, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Sept. 24, 2020, 2 p.m. 41.9 ppb (39) 26.2 ppb (24) N/A 16.0 ppb (15) N/A N/A N/A 0.63 ppb (7) N/A N/A 24.0
 
Sept. 24, 2020, 1 p.m. 63.5 ppb (60) 40.2 ppb (37) N/A 23.0 ppb (21) N/A N/A N/A 0.73 ppb (8) N/A N/A 37.0
 
Sept. 24, 2020, noon 82.4 ppb (80) 60.5 ppb (57) N/A 22.0 ppb (20) N/A N/A N/A 1.01 ppb (11) N/A N/A 57.0
 
Sept. 24, 2020, 11 a.m. 64.5 ppb (61) 43.9 ppb (41) N/A 21.0 ppb (19) N/A N/A N/A 0.82 ppb (9) N/A N/A 41.0
 
Sept. 24, 2020, 10 a.m. 79.9 ppb (78) 55.5 ppb (52) N/A 24.0 ppb (22) N/A N/A N/A 0.92 ppb (10) N/A N/A 52.0
 
Sept. 24, 2020, 9 a.m. 53.4 ppb (49) 32.8 ppb (30) N/A 21.0 ppb (19) N/A N/A N/A 0.65 ppb (7) N/A N/A 30.0
 
Sept. 24, 2020, 8 a.m. 40.3 ppb (37) 22.0 ppb (20) N/A 18.0 ppb (17) N/A N/A N/A 0.46 ppb (5) N/A N/A 20.0
 
Sept. 24, 2020, 7 a.m. 26.1 ppb (24) 12.8 ppb (12) N/A 13.0 ppb (12) N/A N/A N/A 0.4 ppb (4) N/A N/A 12.0
 
Sept. 24, 2020, 6 a.m. 27.7 ppb (26) 13.8 ppb (13) N/A 14.0 ppb (13) N/A N/A N/A 0.45 ppb (5) N/A N/A 13.0
 
Sept. 24, 2020, 5 a.m. 20.5 ppb (19) 8.4 ppb (8) N/A 12.0 ppb (11) N/A N/A N/A 0.57 ppb (6) N/A N/A 11.0
 
Sept. 24, 2020, 4 a.m. 21.3 ppb (20) 10.3 ppb (10) N/A 11.0 ppb (10) N/A N/A N/A 0.38 ppb (4) N/A N/A 10.0
 
Sept. 24, 2020, 3 a.m. 24.9 ppb (23) 14.1 ppb (13) N/A 11.0 ppb (10) N/A N/A N/A 0.57 ppb (6) N/A N/A 13.0
 
Sept. 24, 2020, 2 a.m. 23.8 ppb (22) 11.5 ppb (11) N/A 12.0 ppb (11) N/A N/A N/A 0.72 ppb (8) N/A 10.0 μg/m3 (42) 42.0