ID: 2233

AQSQID: 090030025

Site Name: Hartford-Huntley

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

Updated: Oct. 29, 2020, 7:39 a.m.

Location: Hartford (Downtown), CT

Reporting: True, Located: True

Current AQI: 48.0

Hartford (Downtown) CT, US: 41.771444, -72.679923

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Oct. 15, 2020, 6 a.m. N/A N/A N/A 20.0 ppb (19) N/A N/A N/A 0.65 ppb (8) 25.0 μg/m3 (24) 12.2 μg/m3 (52) 50.0
 
Oct. 15, 2020, 5 a.m. N/A N/A N/A 21.0 ppb (20) N/A N/A N/A 0.77 ppb (10) 23.7 μg/m3 (22) 11.6 μg/m3 (49) 48.0
 
Oct. 15, 2020, 4 a.m. N/A N/A N/A 29.0 ppb (28) N/A N/A N/A 0.59 ppb (7) 21.2 μg/m3 (20) 9.3 μg/m3 (39) 39.0
 
Oct. 15, 2020, 3 a.m. N/A N/A N/A 33.0 ppb (32) N/A N/A N/A 0.74 ppb (8) 22.7 μg/m3 (22) 9.1 μg/m3 (38) 38.0
 
Oct. 15, 2020, 2 a.m. N/A N/A N/A 33.0 ppb (32) N/A N/A N/A 0.79 ppb (10) 23.8 μg/m3 (23) 9.7 μg/m3 (41) 40.0
 
Oct. 15, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 0.52 ppb (6) 18.1 μg/m3 (17) 7.2 μg/m3 (31) 30.0
 
Oct. 15, 2020, midnight N/A N/A N/A 34.0 ppb (33) N/A N/A N/A 0.68 ppb (8) 19.9 μg/m3 (19) 8.2 μg/m3 (35) 34.0
 
Oct. 14, 2020, 11 p.m. N/A N/A N/A 32.0 ppb (31) N/A N/A N/A 0.54 ppb (6) 19.2 μg/m3 (18) 6.7 μg/m3 (28) 30.0
 
Oct. 14, 2020, 10 p.m. N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 0.7 ppb (8) 16.7 μg/m3 (16) 5.5 μg/m3 (23) 33.0
 
Oct. 14, 2020, 9 p.m. N/A N/A N/A 7.0 ppb (7) N/A N/A N/A 0.26 ppb (4) 13.3 μg/m3 (13) 3.8 μg/m3 (16) 16.0
 
Oct. 14, 2020, 8 p.m. N/A N/A N/A 9.0 ppb (9) N/A N/A N/A 0.24 ppb (3) 12.6 μg/m3 (12) 3.8 μg/m3 (16) 16.0
 
Oct. 14, 2020, 7 p.m. N/A N/A N/A 9.0 ppb (9) N/A N/A N/A 0.22 ppb (3) 12.5 μg/m3 (12) 3.9 μg/m3 (17) 16.0
 
Oct. 14, 2020, 6 p.m. N/A N/A N/A 7.0 ppb (7) N/A N/A N/A 0.17 ppb (3) 11.7 μg/m3 (11) 3.6 μg/m3 (16) 15.0
 
Oct. 14, 2020, 5 p.m. N/A N/A N/A 9.0 ppb (9) N/A N/A N/A 0.28 ppb (4) 12.8 μg/m3 (12) 4.0 μg/m3 (17) 17.0
 
Oct. 14, 2020, 4 p.m. N/A N/A N/A 7.0 ppb (7) N/A N/A N/A 0.26 ppb (4) 10.6 μg/m3 (10) 4.0 μg/m3 (17) 17.0
 
Oct. 14, 2020, 3 p.m. N/A N/A N/A 8.0 ppb (8) N/A N/A N/A 0.14 ppb (2) 10.9 μg/m3 (11) 4.1 μg/m3 (18) 17.0
 
Oct. 14, 2020, 2 p.m. N/A N/A N/A 7.0 ppb (7) N/A N/A N/A N/A 10.3 μg/m3 (10) 4.2 μg/m3 (18) 18.0
 
Oct. 14, 2020, 1 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A N/A 10.4 μg/m3 (10) 4.3 μg/m3 (18) 18.0
 
Oct. 14, 2020, noon N/A N/A N/A 23.0 ppb (22) N/A N/A N/A 0.6 ppb (7) 15.8 μg/m3 (15) 7.2 μg/m3 (31) 30.0
 
Oct. 14, 2020, 11 a.m. N/A N/A N/A 25.0 ppb (24) N/A N/A N/A 0.92 ppb (11) 14.9 μg/m3 (14) 7.1 μg/m3 (30) 30.0
 
Oct. 14, 2020, 10 a.m. N/A N/A N/A 28.0 ppb (27) N/A N/A N/A 0.72 ppb (8) 14.0 μg/m3 (13) 6.7 μg/m3 (28) 28.0
 
Oct. 14, 2020, 9 a.m. N/A N/A N/A 16.0 ppb (16) N/A N/A N/A 0.38 ppb (5) 10.7 μg/m3 (10) 5.2 μg/m3 (22) 22.0
 
Oct. 14, 2020, 8 a.m. N/A N/A N/A 15.0 ppb (15) N/A N/A N/A 0.23 ppb (3) 10.1 μg/m3 (10) 4.9 μg/m3 (21) 20.0
 
Oct. 14, 2020, 7 a.m. N/A N/A N/A 12.0 ppb (12) N/A N/A N/A N/A 8.9 μg/m3 (9) 4.3 μg/m3 (18) 18.0
 
Oct. 14, 2020, 6 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A N/A 0.16 ppb (3) 6.9 μg/m3 (7) 3.6 μg/m3 (16) 15.0
 
Oct. 14, 2020, 5 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.15 ppb (2) 6.9 μg/m3 (7) 3.4 μg/m3 (15) 14.0
 
Oct. 14, 2020, 4 a.m. N/A N/A N/A 8.0 ppb (8) N/A N/A N/A 0.2 ppb (3) 6.6 μg/m3 (7) 2.9 μg/m3 (13) 12.0
 
Oct. 14, 2020, 3 a.m. N/A N/A N/A 8.0 ppb (8) N/A N/A N/A 0.26 ppb (4) 5.7 μg/m3 (6) 2.5 μg/m3 (11) 10.0
 
Oct. 14, 2020, 2 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.2 ppb (3) 5.1 μg/m3 (5) 2.0 μg/m3 (9) 8.0
 
Oct. 14, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 0.16 ppb (3) 4.5 μg/m3 (5) 1.6 μg/m3 (7) 7.0
 
Oct. 14, 2020, midnight N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.16 ppb (3) 3.8 μg/m3 (4) 1.5 μg/m3 (7) 6.0
 
Oct. 13, 2020, 11 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.13 ppb (2) 2.7 μg/m3 (3) 1.2 μg/m3 (5) 5.0
 
Oct. 13, 2020, 10 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.14 ppb (2) 2.3 μg/m3 (3) 0.9 μg/m3 (4) 4.0
 
Oct. 13, 2020, 9 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.18 ppb (3) 2.4 μg/m3 (3) 0.9 μg/m3 (4) 4.0
 
Oct. 13, 2020, 8 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.16 ppb (3) 1.8 μg/m3 (2) 0.8 μg/m3 (4) 4.0
 
Oct. 13, 2020, 7 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.13 ppb (2) 2.2 μg/m3 (3) 1.0 μg/m3 (5) 4.0
 
Oct. 13, 2020, 6 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.15 ppb (2) 2.6 μg/m3 (3) 1.0 μg/m3 (5) 5.0
 
Oct. 13, 2020, 5 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.15 ppb (2) 2.7 μg/m3 (3) 1.1 μg/m3 (5) 5.0
 
Oct. 13, 2020, 4 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.15 ppb (2) 2.2 μg/m3 (3) 1.0 μg/m3 (5) 5.0
 
Oct. 13, 2020, 3 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.11 ppb (2) 1.5 μg/m3 (2) 0.7 μg/m3 (3) 4.0
 
Oct. 13, 2020, 2 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.14 ppb (2) 1.9 μg/m3 (2) 1.0 μg/m3 (5) 5.0
 
Oct. 13, 2020, 1 p.m. N/A N/A N/A 8.0 ppb (8) N/A N/A N/A 0.19 ppb (3) 2.1 μg/m3 (2) 1.1 μg/m3 (5) 7.0
 
Oct. 13, 2020, noon N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.17 ppb (3) 1.7 μg/m3 (2) 0.9 μg/m3 (4) 6.0
 
Oct. 13, 2020, 11 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.13 ppb (2) 2.1 μg/m3 (2) 1.2 μg/m3 (5) 6.0
 
Oct. 13, 2020, 10 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.15 ppb (2) 2.9 μg/m3 (3) 1.8 μg/m3 (8) 8.0
 
Oct. 13, 2020, 9 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.14 ppb (2) 4.5 μg/m3 (5) 2.8 μg/m3 (12) 12.0
 
Oct. 13, 2020, 8 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.12 ppb (2) 5.2 μg/m3 (5) 3.1 μg/m3 (13) 13.0
 
Oct. 13, 2020, 7 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A N/A 8.0 μg/m3 (8) 4.3 μg/m3 (18) 18.0
 
Oct. 13, 2020, 6 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.13 ppb (2) 11.6 μg/m3 (11) 5.4 μg/m3 (23) 23.0
 
Oct. 13, 2020, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.16 ppb (3) 12.5 μg/m3 (12) 6.0 μg/m3 (25) 25.0
 
Oct. 13, 2020, 4 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.16 ppb (3) 15.0 μg/m3 (14) 6.3 μg/m3 (27) 26.0
 
Oct. 13, 2020, 3 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.16 ppb (3) 15.5 μg/m3 (15) 6.6 μg/m3 (28) 28.0
 
Oct. 13, 2020, 2 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.17 ppb (3) 15.1 μg/m3 (14) 6.6 μg/m3 (28) 28.0
 
Oct. 13, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 0.18 ppb (3) 14.8 μg/m3 (14) 6.3 μg/m3 (27) 26.0
 
Oct. 13, 2020, midnight N/A N/A N/A 7.0 ppb (7) N/A N/A N/A 0.18 ppb (3) 13.5 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
Oct. 12, 2020, 11 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.16 ppb (3) 13.1 μg/m3 (13) 5.6 μg/m3 (24) 23.0
 
Oct. 12, 2020, 10 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.16 ppb (3) 15.6 μg/m3 (15) 6.1 μg/m3 (26) 25.0
 
Oct. 12, 2020, 9 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.15 ppb (2) 14.0 μg/m3 (13) 5.4 μg/m3 (23) 23.0
 
Oct. 12, 2020, 8 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.17 ppb (3) 13.0 μg/m3 (13) 5.1 μg/m3 (22) 21.0
 
Oct. 12, 2020, 7 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.15 ppb (2) 12.5 μg/m3 (12) 5.1 μg/m3 (22) 21.0
 
Oct. 12, 2020, 6 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.17 ppb (3) 11.3 μg/m3 (11) 5.0 μg/m3 (21) 21.0
 
Oct. 12, 2020, 5 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.16 ppb (3) 11.2 μg/m3 (11) 5.1 μg/m3 (22) 21.0
 
Oct. 12, 2020, 4 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.14 ppb (2) 10.5 μg/m3 (10) 5.2 μg/m3 (22) 22.0
 
Oct. 12, 2020, 3 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.15 ppb (2) 11.1 μg/m3 (11) 5.4 μg/m3 (23) 23.0
 
Oct. 12, 2020, 2 p.m. N/A N/A N/A 8.0 ppb (8) N/A N/A N/A 0.17 ppb (3) 12.0 μg/m3 (12) 5.8 μg/m3 (25) 24.0
 
Oct. 12, 2020, 1 p.m. N/A N/A N/A 11.0 ppb (11) N/A N/A N/A 0.18 ppb (3) 11.9 μg/m3 (12) 5.5 μg/m3 (23) 23.0
 
Oct. 12, 2020, noon N/A N/A N/A 9.0 ppb (9) N/A N/A N/A 0.17 ppb (3) 12.6 μg/m3 (12) 5.2 μg/m3 (22) 22.0
 
Oct. 12, 2020, 11 a.m. N/A N/A N/A 9.0 ppb (9) N/A N/A N/A 0.2 ppb (3) 11.3 μg/m3 (11) 5.2 μg/m3 (22) 22.0
 
Oct. 12, 2020, 10 a.m. N/A N/A N/A 8.0 ppb (8) N/A N/A N/A 0.18 ppb (3) 11.5 μg/m3 (11) 5.0 μg/m3 (21) 21.0
 
Oct. 12, 2020, 9 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.16 ppb (3) 11.8 μg/m3 (11) 4.9 μg/m3 (21) 20.0
 
Oct. 12, 2020, 8 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.13 ppb (2) 10.2 μg/m3 (10) 4.3 μg/m3 (18) 18.0
 
Oct. 12, 2020, 7 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A N/A 9.2 μg/m3 (9) 4.3 μg/m3 (18) 18.0
 
Oct. 12, 2020, 6 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.13 ppb (2) 10.2 μg/m3 (10) 4.5 μg/m3 (19) 19.0
 
Oct. 12, 2020, 5 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.12 ppb (2) 9.7 μg/m3 (9) 4.6 μg/m3 (20) 19.0
 
Oct. 12, 2020, 4 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.14 ppb (2) 10.1 μg/m3 (10) 4.6 μg/m3 (20) 19.0
 
Oct. 12, 2020, 3 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.18 ppb (3) 11.0 μg/m3 (11) 4.7 μg/m3 (20) 20.0
 
Oct. 12, 2020, 2 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.21 ppb (3) 12.4 μg/m3 (12) 4.7 μg/m3 (20) 20.0
 
Oct. 12, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 0.26 ppb (4) 11.9 μg/m3 (12) 5.4 μg/m3 (23) 23.0
 
Oct. 12, 2020, midnight N/A N/A N/A 10.0 ppb (10) N/A N/A N/A 0.23 ppb (3) 11.8 μg/m3 (11) 5.3 μg/m3 (23) 22.0
 
Oct. 11, 2020, 11 p.m. N/A N/A N/A 7.0 ppb (7) N/A N/A N/A 0.19 ppb (3) 10.3 μg/m3 (10) 4.7 μg/m3 (20) 20.0
 
Oct. 11, 2020, 10 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.18 ppb (3) 10.6 μg/m3 (10) 4.1 μg/m3 (18) 17.0
 
Oct. 11, 2020, 9 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.16 ppb (3) 9.6 μg/m3 (9) 4.0 μg/m3 (17) 17.0
 
Oct. 11, 2020, 8 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.15 ppb (2) 9.2 μg/m3 (9) 3.8 μg/m3 (16) 16.0
 
Oct. 11, 2020, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.14 ppb (2) 7.6 μg/m3 (8) 3.5 μg/m3 (15) 15.0
 
Oct. 11, 2020, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.14 ppb (2) 7.5 μg/m3 (7) 3.2 μg/m3 (14) 13.0
 
Oct. 11, 2020, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.14 ppb (2) 7.8 μg/m3 (8) 2.7 μg/m3 (12) 11.0
 
Oct. 11, 2020, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.12 ppb (2) 7.0 μg/m3 (7) 2.3 μg/m3 (10) 10.0
 
Oct. 11, 2020, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.14 ppb (2) 8.4 μg/m3 (8) 2.8 μg/m3 (12) 12.0
 
Oct. 11, 2020, 2 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.13 ppb (2) 9.9 μg/m3 (10) 3.5 μg/m3 (15) 15.0
 
Oct. 11, 2020, 1 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.13 ppb (2) 9.9 μg/m3 (10) 3.9 μg/m3 (17) 16.0
 
Oct. 11, 2020, noon N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.13 ppb (2) 12.7 μg/m3 (12) 6.5 μg/m3 (28) 27.0
 
Oct. 11, 2020, 11 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.17 ppb (3) 23.0 μg/m3 (22) 11.9 μg/m3 (50) 50.0
 
Oct. 11, 2020, 10 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.16 ppb (3) 25.2 μg/m3 (24) 13.4 μg/m3 (54) 53.0
 
Oct. 11, 2020, 9 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.16 ppb (3) 25.6 μg/m3 (24) 13.5 μg/m3 (54) 53.0
 
Oct. 11, 2020, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.15 ppb (2) 25.3 μg/m3 (24) 12.6 μg/m3 (53) 51.0
 
Oct. 11, 2020, 7 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A N/A 20.8 μg/m3 (20) 12.2 μg/m3 (52) 50.0
 
Oct. 11, 2020, 6 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A N/A 0.4 ppb (5) 19.4 μg/m3 (18) 11.8 μg/m3 (50) 49.0
 
Oct. 11, 2020, 5 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.26 ppb (4) 18.9 μg/m3 (18) 11.7 μg/m3 (49) 49.0
 
Oct. 11, 2020, 4 a.m. N/A N/A N/A 10.0 ppb (10) N/A N/A N/A 0.37 ppb (5) 21.9 μg/m3 (21) 11.8 μg/m3 (50) 49.0
 
Oct. 11, 2020, 3 a.m. N/A N/A N/A 13.0 ppb (13) N/A N/A N/A 0.43 ppb (5) 20.9 μg/m3 (20) 12.1 μg/m3 (51) 50.0
 
Oct. 11, 2020, 2 a.m. N/A N/A N/A 18.0 ppb (17) N/A N/A N/A 0.47 ppb (6) 21.6 μg/m3 (20) 12.2 μg/m3 (52) 50.0
 
Oct. 11, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 23.1 μg/m3 (22) 11.7 μg/m3 (49) 49.0
 
Oct. 11, 2020, midnight N/A N/A N/A 13.0 ppb (13) N/A N/A N/A 0.44 ppb (5) 20.9 μg/m3 (20) 10.9 μg/m3 (46) 45.0
 
Oct. 10, 2020, 11 p.m. N/A N/A N/A 14.0 ppb (14) N/A N/A N/A 0.45 ppb (6) 20.6 μg/m3 (20) 10.0 μg/m3 (42) 42.0
 
Oct. 10, 2020, 10 p.m. N/A N/A N/A 13.0 ppb (13) N/A N/A N/A 0.48 ppb (6) 17.3 μg/m3 (17) 9.3 μg/m3 (39) 39.0
 
Oct. 10, 2020, 9 p.m. N/A N/A N/A 14.0 ppb (14) N/A N/A N/A 0.43 ppb (5) 20.9 μg/m3 (20) 9.5 μg/m3 (40) 40.0
 
Oct. 10, 2020, 8 p.m. N/A N/A N/A 12.0 ppb (12) N/A N/A N/A 0.39 ppb (5) 22.0 μg/m3 (21) 9.4 μg/m3 (40) 39.0
 
Oct. 10, 2020, 7 p.m. N/A N/A N/A 11.0 ppb (11) N/A N/A N/A 0.34 ppb (4) 22.0 μg/m3 (21) 9.6 μg/m3 (40) 40.0
 
Oct. 10, 2020, 6 p.m. N/A N/A N/A 14.0 ppb (14) N/A N/A N/A 0.42 ppb (5) 21.5 μg/m3 (20) 8.6 μg/m3 (36) 36.0
 
Oct. 10, 2020, 5 p.m. N/A N/A N/A 13.0 ppb (13) N/A N/A N/A 0.35 ppb (4) 18.0 μg/m3 (17) 8.2 μg/m3 (35) 34.0
 
Oct. 10, 2020, 4 p.m. N/A N/A N/A 11.0 ppb (11) N/A N/A N/A 0.34 ppb (4) 17.8 μg/m3 (17) 6.8 μg/m3 (29) 28.0
 
Oct. 10, 2020, 3 p.m. N/A N/A N/A 12.0 ppb (12) N/A N/A N/A 0.42 ppb (5) 17.6 μg/m3 (17) 6.2 μg/m3 (26) 26.0
 
Oct. 10, 2020, 2 p.m. N/A N/A N/A 12.0 ppb (12) N/A N/A N/A 0.34 ppb (4) 15.6 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
Oct. 10, 2020, 1 p.m. N/A N/A N/A 12.0 ppb (12) N/A N/A N/A 0.29 ppb (4) 15.1 μg/m3 (14) 5.8 μg/m3 (25) 24.0
 
Oct. 10, 2020, noon N/A N/A N/A 11.0 ppb (11) N/A N/A N/A 0.26 ppb (4) 13.5 μg/m3 (13) 5.8 μg/m3 (25) 24.0
 
Oct. 10, 2020, 11 a.m. N/A N/A N/A 13.0 ppb (13) N/A N/A N/A 0.3 ppb (4) 15.3 μg/m3 (15) 5.9 μg/m3 (25) 25.0
 
Oct. 10, 2020, 10 a.m. N/A N/A N/A 11.0 ppb (11) N/A N/A N/A 0.29 ppb (4) 12.5 μg/m3 (12) 5.4 μg/m3 (23) 23.0
 
Oct. 10, 2020, 9 a.m. N/A N/A N/A 9.0 ppb (9) N/A N/A N/A 0.2 ppb (3) 14.0 μg/m3 (13) 5.1 μg/m3 (22) 21.0
 
Oct. 10, 2020, 8 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A N/A 0.21 ppb (3) 13.3 μg/m3 (13) 5.4 μg/m3 (23) 23.0
 
Oct. 10, 2020, 7 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A N/A 13.8 μg/m3 (13) 5.7 μg/m3 (24) 24.0
 
Oct. 10, 2020, 6 a.m. N/A N/A N/A 9.0 ppb (9) N/A N/A N/A 0.21 ppb (3) 15.5 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
Oct. 10, 2020, 5 a.m. N/A N/A N/A 9.0 ppb (9) N/A N/A N/A 0.28 ppb (4) 14.5 μg/m3 (14) 6.3 μg/m3 (27) 26.0
 
Oct. 10, 2020, 4 a.m. N/A N/A N/A 13.0 ppb (13) N/A N/A N/A 0.34 ppb (4) 16.9 μg/m3 (16) 7.4 μg/m3 (31) 31.0
 
Oct. 10, 2020, 3 a.m. N/A N/A N/A 18.0 ppb (17) N/A N/A N/A 0.45 ppb (6) 16.9 μg/m3 (16) 8.9 μg/m3 (38) 37.0
 
Oct. 10, 2020, 2 a.m. N/A N/A N/A 21.0 ppb (20) N/A N/A N/A 0.47 ppb (6) 15.3 μg/m3 (15) 7.7 μg/m3 (33) 32.0
 
Oct. 10, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 0.48 ppb (6) 14.9 μg/m3 (14) 7.3 μg/m3 (31) 30.0
 
Oct. 10, 2020, midnight N/A N/A N/A 17.0 ppb (17) N/A N/A N/A 0.44 ppb (5) 13.3 μg/m3 (13) 6.4 μg/m3 (27) 27.0
 
Oct. 9, 2020, 11 p.m. N/A N/A N/A 16.0 ppb (16) N/A N/A N/A 0.43 ppb (5) 12.4 μg/m3 (12) 5.3 μg/m3 (23) 22.0
 
Oct. 9, 2020, 10 p.m. N/A N/A N/A 20.0 ppb (19) N/A N/A N/A 0.49 ppb (6) 15.1 μg/m3 (14) 5.7 μg/m3 (24) 24.0
 
Oct. 9, 2020, 9 p.m. N/A N/A N/A 18.0 ppb (17) N/A N/A N/A 0.33 ppb (4) 14.1 μg/m3 (14) 5.3 μg/m3 (23) 22.0
 
Oct. 9, 2020, 8 p.m. N/A N/A N/A 14.0 ppb (14) N/A N/A N/A 0.19 ppb (3) 11.5 μg/m3 (11) 4.3 μg/m3 (18) 18.0
 
Oct. 9, 2020, 7 p.m. N/A N/A N/A 12.0 ppb (12) N/A N/A N/A 0.28 ppb (4) 9.6 μg/m3 (9) 3.9 μg/m3 (17) 16.0
 
Oct. 9, 2020, 6 p.m. N/A N/A N/A 10.0 ppb (10) N/A N/A N/A 0.26 ppb (4) 10.2 μg/m3 (10) 4.1 μg/m3 (18) 17.0
 
Oct. 9, 2020, 5 p.m. N/A N/A N/A 15.0 ppb (15) N/A N/A N/A 0.64 ppb (7) 13.7 μg/m3 (13) 4.5 μg/m3 (19) 19.0
 
Oct. 9, 2020, 4 p.m. N/A N/A N/A 9.0 ppb (9) N/A N/A N/A 0.32 ppb (4) 10.6 μg/m3 (10) 3.9 μg/m3 (17) 16.0
 
Oct. 9, 2020, 3 p.m. N/A N/A N/A 8.0 ppb (8) N/A N/A N/A 0.2 ppb (3) 17.0 μg/m3 (16) 4.3 μg/m3 (18) 18.0
 
Oct. 9, 2020, 2 p.m. N/A N/A N/A 9.0 ppb (9) N/A N/A N/A 0.26 ppb (4) 10.6 μg/m3 (10) 4.0 μg/m3 (17) 17.0
 
Oct. 9, 2020, 1 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.15 ppb (2) 9.9 μg/m3 (10) 3.7 μg/m3 (16) 15.0
 
Oct. 9, 2020, noon N/A N/A N/A 9.0 ppb (9) N/A N/A N/A 0.21 ppb (3) 10.4 μg/m3 (10) 4.4 μg/m3 (19) 18.0
 
Oct. 9, 2020, 11 a.m. N/A N/A N/A 13.0 ppb (13) N/A N/A N/A 0.25 ppb (3) 18.7 μg/m3 (18) 7.3 μg/m3 (31) 30.0
 
Oct. 9, 2020, 10 a.m. N/A N/A N/A 15.0 ppb (15) N/A N/A N/A 0.22 ppb (3) 13.5 μg/m3 (13) 6.5 μg/m3 (28) 27.0
 
Oct. 9, 2020, 9 a.m. N/A N/A N/A 13.0 ppb (13) N/A N/A N/A 0.19 ppb (3) 14.7 μg/m3 (14) 3.9 μg/m3 (17) 16.0
 
Oct. 9, 2020, 8 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A N/A 0.16 ppb (3) 4.9 μg/m3 (5) 2.7 μg/m3 (12) 11.0
 
Oct. 9, 2020, 7 a.m. N/A N/A N/A 9.0 ppb (9) N/A N/A N/A N/A 6.0 μg/m3 (6) 2.8 μg/m3 (12) 12.0
 
Oct. 9, 2020, 6 a.m. N/A N/A N/A 9.0 ppb (9) N/A N/A N/A 0.19 ppb (3) 5.9 μg/m3 (6) 2.7 μg/m3 (12) 11.0
 
Oct. 9, 2020, 5 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A N/A 0.16 ppb (3) 5.3 μg/m3 (5) 2.6 μg/m3 (11) 11.0
 
Oct. 9, 2020, 4 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.15 ppb (2) 4.9 μg/m3 (5) 2.5 μg/m3 (11) 10.0
 
Oct. 9, 2020, 3 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.16 ppb (3) 4.9 μg/m3 (5) 2.6 μg/m3 (11) 11.0
 
Oct. 9, 2020, 2 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.13 ppb (2) 5.4 μg/m3 (5) 2.5 μg/m3 (11) 10.0
 
Oct. 9, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 0.14 ppb (2) 6.2 μg/m3 (6) 2.6 μg/m3 (11) 11.0
 
Oct. 9, 2020, midnight N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.13 ppb (2) 7.3 μg/m3 (7) 2.5 μg/m3 (11) 10.0
 
Oct. 8, 2020, 11 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.15 ppb (2) 9.5 μg/m3 (9) 2.3 μg/m3 (10) 10.0
 
Oct. 8, 2020, 10 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.13 ppb (2) 7.8 μg/m3 (8) 2.3 μg/m3 (10) 10.0
 
Oct. 8, 2020, 9 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.1 ppb (2) 9.4 μg/m3 (9) 2.3 μg/m3 (10) 10.0
 
Oct. 8, 2020, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.11 ppb (2) 9.2 μg/m3 (9) 2.4 μg/m3 (10) 10.0
 
Oct. 8, 2020, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.14 ppb (2) 28.5 μg/m3 (27) 3.8 μg/m3 (16) 26.0
 
Oct. 8, 2020, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.13 ppb (2) 14.5 μg/m3 (14) 2.8 μg/m3 (12) 13.0
 
Oct. 8, 2020, 5 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.13 ppb (2) 9.6 μg/m3 (9) 3.2 μg/m3 (14) 13.0
 
Oct. 8, 2020, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.12 ppb (2) 9.4 μg/m3 (9) 2.7 μg/m3 (12) 11.0
 
Oct. 8, 2020, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.17 ppb (3) 13.2 μg/m3 (13) 3.6 μg/m3 (16) 15.0
 
Oct. 8, 2020, 2 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.21 ppb (3) 9.6 μg/m3 (9) 2.9 μg/m3 (13) 12.0
 
Oct. 8, 2020, 1 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.12 ppb (2) 9.9 μg/m3 (10) 2.2 μg/m3 (10) 9.0
 
Oct. 8, 2020, noon N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.15 ppb (2) 7.0 μg/m3 (7) 2.2 μg/m3 (10) 9.0
 
Oct. 8, 2020, 11 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.11 ppb (2) 6.8 μg/m3 (7) 2.0 μg/m3 (9) 8.0
 
Oct. 8, 2020, 10 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.15 ppb (2) 8.1 μg/m3 (8) 1.5 μg/m3 (7) 7.0
 
Oct. 8, 2020, 9 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 0.12 ppb (2) 7.1 μg/m3 (7) 1.3 μg/m3 (6) 6.0
 
Oct. 8, 2020, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.11 ppb (2) 6.9 μg/m3 (7) 1.4 μg/m3 (6) 6.0
 
Oct. 8, 2020, 7 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A 6.4 μg/m3 (6) 1.8 μg/m3 (8) 8.0