ID: 2233

AQSQID: 090030025

Site Name: Hartford-Huntley

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

Updated: Sept. 25, 2020, 3:40 p.m.

Location: Hartford (Downtown), CT

Reporting: True, Located: True

Current AQI: 67.0

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
Sept. 25, 2020, 2 p.m. N/A N/A N/A 24.0 ppb (22) N/A N/A N/A 0.63 ppb (7) 46.0 μg/m3 (42) 19.8 μg/m3 (67) 67.0
 
Sept. 25, 2020, 1 p.m. N/A N/A N/A 24.0 ppb (22) N/A N/A N/A 0.73 ppb (8) 41.9 μg/m3 (38) 20.4 μg/m3 (68) 68.0
 
Sept. 25, 2020, noon N/A N/A N/A 22.0 ppb (20) N/A N/A N/A 0.72 ppb (8) 41.6 μg/m3 (38) 21.3 μg/m3 (70) 70.0
 
Sept. 25, 2020, 11 a.m. N/A N/A N/A 22.0 ppb (20) N/A N/A N/A 0.8 ppb (9) 45.4 μg/m3 (41) 20.8 μg/m3 (69) 69.0
 
Sept. 25, 2020, 10 a.m. N/A N/A N/A 24.0 ppb (22) N/A N/A N/A 0.83 ppb (9) 37.7 μg/m3 (34) 20.3 μg/m3 (68) 68.0
 
Sept. 25, 2020, 9 a.m. N/A N/A N/A 27.0 ppb (25) N/A N/A N/A 0.64 ppb (7) 34.8 μg/m3 (32) 18.5 μg/m3 (64) 64.0
 
Sept. 25, 2020, 8 a.m. N/A N/A N/A 20.0 ppb (19) N/A N/A N/A 0.49 ppb (5) 33.6 μg/m3 (31) 17.8 μg/m3 (62) 62.0
 
Sept. 25, 2020, 7 a.m. N/A N/A N/A 22.0 ppb (20) N/A N/A N/A N/A 33.9 μg/m3 (31) 17.0 μg/m3 (61) 61.0
 
Sept. 25, 2020, 6 a.m. N/A N/A N/A 28.0 ppb (26) N/A N/A N/A 0.54 ppb (6) 32.1 μg/m3 (29) 17.4 μg/m3 (61) 61.0
 
Sept. 25, 2020, 5 a.m. N/A N/A N/A 38.0 ppb (35) N/A N/A N/A 0.67 ppb (7) 41.3 μg/m3 (38) 18.0 μg/m3 (63) 63.0
 
Sept. 25, 2020, 4 a.m. N/A N/A N/A 36.0 ppb (33) N/A N/A N/A 0.58 ppb (6) 42.2 μg/m3 (38) 18.7 μg/m3 (64) 64.0
 
Sept. 25, 2020, 3 a.m. N/A N/A N/A 33.0 ppb (31) N/A N/A N/A 0.78 ppb (9) 42.9 μg/m3 (39) 18.9 μg/m3 (65) 65.0
 
Sept. 25, 2020, 2 a.m. N/A N/A N/A 33.0 ppb (31) N/A N/A N/A 0.74 ppb (8) 43.9 μg/m3 (40) 18.6 μg/m3 (64) 64.0
 
Sept. 25, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 0.68 ppb (8) 36.6 μg/m3 (33) 16.8 μg/m3 (60) 60.0
 
Sept. 25, 2020, midnight N/A N/A N/A 24.0 ppb (22) N/A N/A N/A 0.65 ppb (7) 35.1 μg/m3 (32) 15.4 μg/m3 (57) 57.0
 
Sept. 24, 2020, 11 p.m. N/A N/A N/A 25.0 ppb (23) N/A N/A N/A 0.69 ppb (8) 30.4 μg/m3 (28) 13.8 μg/m3 (54) 54.0
 
Sept. 24, 2020, 10 p.m. N/A N/A N/A 30.0 ppb (28) N/A N/A N/A 0.68 ppb (8) 32.8 μg/m3 (30) 13.4 μg/m3 (53) 53.0
 
Sept. 24, 2020, 9 p.m. N/A N/A N/A 15.0 ppb (14) N/A N/A N/A 0.49 ppb (5) 29.7 μg/m3 (27) 12.7 μg/m3 (51) 51.0
 
Sept. 24, 2020, 8 p.m. N/A N/A N/A 18.0 ppb (17) N/A N/A N/A 0.61 ppb (7) 28.7 μg/m3 (26) 12.1 μg/m3 (50) 50.0
 
Sept. 24, 2020, 7 p.m. N/A N/A N/A 15.0 ppb (14) N/A N/A N/A 0.6 ppb (7) 25.6 μg/m3 (23) 11.0 μg/m3 (46) 46.0
 
Sept. 24, 2020, 6 p.m. N/A N/A N/A 20.0 ppb (19) N/A N/A N/A 0.53 ppb (6) 23.2 μg/m3 (21) 11.1 μg/m3 (46) 46.0
 
Sept. 24, 2020, 5 p.m. N/A N/A N/A 20.0 ppb (19) N/A N/A N/A 0.51 ppb (6) 28.8 μg/m3 (26) 12.0 μg/m3 (50) 50.0
 
Sept. 24, 2020, 4 p.m. N/A N/A N/A 20.0 ppb (19) N/A N/A N/A 0.48 ppb (5) 31.5 μg/m3 (29) 13.1 μg/m3 (52) 52.0
 
Sept. 24, 2020, 3 p.m. N/A N/A N/A 20.0 ppb (19) N/A N/A N/A 0.57 ppb (6) 32.7 μg/m3 (30) 14.1 μg/m3 (54) 54.0
 
Sept. 24, 2020, 2 p.m. N/A N/A N/A 24.0 ppb (22) N/A N/A N/A 0.59 ppb (7) 38.1 μg/m3 (35) 15.4 μg/m3 (57) 57.0
 
Sept. 24, 2020, 1 p.m. N/A N/A N/A 29.0 ppb (27) N/A N/A N/A 0.77 ppb (9) 52.7 μg/m3 (48) 17.7 μg/m3 (62) 62.0
 
Sept. 24, 2020, noon N/A N/A N/A 29.0 ppb (27) N/A N/A N/A 0.81 ppb (9) 43.4 μg/m3 (39) 17.2 μg/m3 (61) 61.0
 
Sept. 24, 2020, 11 a.m. N/A N/A N/A 28.0 ppb (26) N/A N/A N/A 0.84 ppb (9) 42.6 μg/m3 (39) 16.6 μg/m3 (60) 60.0
 
Sept. 24, 2020, 10 a.m. N/A N/A N/A 25.0 ppb (23) N/A N/A N/A 0.65 ppb (7) 47.0 μg/m3 (43) 15.4 μg/m3 (57) 57.0
 
Sept. 24, 2020, 9 a.m. N/A N/A N/A 25.0 ppb (23) N/A N/A N/A 0.5 ppb (6) 24.0 μg/m3 (22) 13.4 μg/m3 (53) 53.0
 
Sept. 24, 2020, 8 a.m. N/A N/A N/A 27.0 ppb (25) N/A N/A N/A 0.42 ppb (5) 25.0 μg/m3 (23) 13.6 μg/m3 (53) 53.0
 
Sept. 24, 2020, 7 a.m. N/A N/A N/A 30.0 ppb (28) N/A N/A N/A N/A 23.0 μg/m3 (21) 13.2 μg/m3 (53) 53.0
 
Sept. 24, 2020, 6 a.m. N/A N/A N/A 27.0 ppb (25) N/A N/A N/A 0.4 ppb (4) 25.0 μg/m3 (23) 14.0 μg/m3 (54) 54.0
 
Sept. 24, 2020, 5 a.m. N/A N/A N/A 19.0 ppb (18) N/A N/A N/A 0.37 ppb (4) 21.0 μg/m3 (19) 12.1 μg/m3 (50) 50.0
 
Sept. 24, 2020, 4 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.27 ppb (3) 19.0 μg/m3 (17) 11.2 μg/m3 (47) 47.0
 
Sept. 24, 2020, 3 a.m. N/A N/A N/A 8.0 ppb (7) N/A N/A N/A 0.31 ppb (3) 19.0 μg/m3 (17) 11.0 μg/m3 (46) 46.0
 
Sept. 24, 2020, 2 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.33 ppb (4) 20.0 μg/m3 (18) 10.6 μg/m3 (44) 44.0
 
Sept. 24, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 0.28 ppb (3) 19.0 μg/m3 (17) 10.7 μg/m3 (45) 45.0
 
Sept. 24, 2020, midnight N/A N/A N/A 11.0 ppb (10) N/A N/A N/A 0.32 ppb (4) 19.0 μg/m3 (17) 11.1 μg/m3 (46) 46.0
 
Sept. 23, 2020, 11 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.28 ppb (3) 21.0 μg/m3 (19) 10.9 μg/m3 (45) 45.0
 
Sept. 23, 2020, 10 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.28 ppb (3) 24.0 μg/m3 (22) 12.4 μg/m3 (51) 51.0
 
Sept. 23, 2020, 9 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.27 ppb (3) 26.0 μg/m3 (24) 12.9 μg/m3 (52) 52.0
 
Sept. 23, 2020, 8 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.26 ppb (3) 28.0 μg/m3 (25) 12.1 μg/m3 (50) 50.0
 
Sept. 23, 2020, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.24 ppb (3) 35.0 μg/m3 (32) 12.1 μg/m3 (50) 50.0
 
Sept. 23, 2020, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.23 ppb (3) 33.0 μg/m3 (30) 12.6 μg/m3 (51) 51.0
 
Sept. 23, 2020, 5 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.24 ppb (3) 28.0 μg/m3 (25) 11.5 μg/m3 (48) 48.0
 
Sept. 23, 2020, 4 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.23 ppb (3) 30.0 μg/m3 (27) 12.4 μg/m3 (51) 51.0
 
Sept. 23, 2020, 3 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.23 ppb (3) 29.0 μg/m3 (26) 12.2 μg/m3 (50) 50.0
 
Sept. 23, 2020, 2 p.m. N/A N/A N/A 12.0 ppb (11) N/A N/A N/A 0.28 ppb (3) 22.0 μg/m3 (20) 8.4 μg/m3 (35) 35.0
 
Sept. 23, 2020, 1 p.m. N/A N/A N/A 19.0 ppb (18) N/A N/A N/A 0.43 ppb (5) 22.0 μg/m3 (20) 7.0 μg/m3 (29) 29.0
 
Sept. 23, 2020, noon N/A N/A N/A 26.0 ppb (24) N/A N/A N/A 0.63 ppb (7) 23.0 μg/m3 (21) 8.2 μg/m3 (34) 34.0
 
Sept. 23, 2020, 11 a.m. N/A N/A N/A 35.0 ppb (32) N/A N/A N/A 0.8 ppb (9) 37.0 μg/m3 (34) 10.5 μg/m3 (44) 44.0
 
Sept. 23, 2020, 10 a.m. N/A N/A N/A 29.0 ppb (27) N/A N/A N/A 0.64 ppb (7) 28.0 μg/m3 (25) 8.3 μg/m3 (35) 35.0
 
Sept. 23, 2020, 9 a.m. N/A N/A N/A 29.0 ppb (27) N/A N/A N/A 0.53 ppb (6) 17.0 μg/m3 (15) 6.8 μg/m3 (28) 28.0
 
Sept. 23, 2020, 8 a.m. N/A N/A N/A 27.0 ppb (25) N/A N/A N/A 0.31 ppb (3) 13.0 μg/m3 (12) 6.1 μg/m3 (25) 25.0
 
Sept. 23, 2020, 7 a.m. N/A N/A N/A 20.0 ppb (19) N/A N/A N/A N/A 13.0 μg/m3 (12) 5.2 μg/m3 (22) 22.0
 
Sept. 23, 2020, 6 a.m. N/A N/A N/A 18.0 ppb (17) N/A N/A N/A 0.22 ppb (2) 12.0 μg/m3 (11) 4.9 μg/m3 (20) 20.0
 
Sept. 23, 2020, 5 a.m. N/A N/A N/A 8.0 ppb (7) N/A N/A N/A 0.17 ppb (2) 12.0 μg/m3 (11) 4.6 μg/m3 (19) 19.0
 
Sept. 23, 2020, 4 a.m. N/A N/A N/A 14.0 ppb (13) N/A N/A N/A 0.2 ppb (2) 13.0 μg/m3 (12) 4.9 μg/m3 (20) 20.0
 
Sept. 23, 2020, 3 a.m. N/A N/A N/A 14.0 ppb (13) N/A N/A N/A 0.24 ppb (3) 13.0 μg/m3 (12) 5.1 μg/m3 (21) 21.0
 
Sept. 23, 2020, 2 a.m. N/A N/A N/A 13.0 ppb (12) N/A N/A N/A 0.27 ppb (3) 15.0 μg/m3 (14) 5.6 μg/m3 (23) 23.0
 
Sept. 23, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 0.33 ppb (4) 14.0 μg/m3 (13) 5.8 μg/m3 (24) 24.0
 
Sept. 23, 2020, midnight N/A N/A N/A 16.0 ppb (15) N/A N/A N/A 0.32 ppb (4) 14.0 μg/m3 (13) 5.1 μg/m3 (21) 21.0
 
Sept. 22, 2020, 11 p.m. N/A N/A N/A 13.0 ppb (12) N/A N/A N/A 0.25 ppb (3) 12.0 μg/m3 (11) 4.0 μg/m3 (17) 17.0
 
Sept. 22, 2020, 10 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.16 ppb (2) 12.0 μg/m3 (11) 3.4 μg/m3 (14) 14.0
 
Sept. 22, 2020, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.14 ppb (2) 19.0 μg/m3 (17) 3.9 μg/m3 (16) 17.0
 
Sept. 22, 2020, 8 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.14 ppb (2) 18.0 μg/m3 (16) 3.5 μg/m3 (15) 16.0
 
Sept. 22, 2020, 7 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.15 ppb (2) 15.0 μg/m3 (14) 3.7 μg/m3 (15) 15.0
 
Sept. 22, 2020, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.14 ppb (2) 14.0 μg/m3 (13) 3.6 μg/m3 (15) 15.0
 
Sept. 22, 2020, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.14 ppb (2) 15.0 μg/m3 (14) 3.7 μg/m3 (15) 15.0
 
Sept. 22, 2020, 4 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.15 ppb (2) 17.0 μg/m3 (15) 4.3 μg/m3 (18) 18.0
 
Sept. 22, 2020, 3 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.17 ppb (2) 18.0 μg/m3 (16) 4.6 μg/m3 (19) 19.0
 
Sept. 22, 2020, 2 p.m. N/A N/A N/A 8.0 ppb (7) N/A N/A N/A 0.23 ppb (3) 17.0 μg/m3 (15) 5.5 μg/m3 (23) 23.0
 
Sept. 22, 2020, 1 p.m. N/A N/A N/A 7.0 ppb (6) N/A N/A N/A 0.22 ppb (2) 15.0 μg/m3 (14) 5.5 μg/m3 (23) 23.0
 
Sept. 22, 2020, noon N/A N/A N/A 9.0 ppb (8) N/A N/A N/A 0.25 ppb (3) 14.0 μg/m3 (13) 5.7 μg/m3 (24) 24.0
 
Sept. 22, 2020, 11 a.m. N/A N/A N/A 12.0 ppb (11) N/A N/A N/A 0.23 ppb (3) 16.0 μg/m3 (15) 5.4 μg/m3 (23) 23.0
 
Sept. 22, 2020, 10 a.m. N/A N/A N/A 10.0 ppb (9) N/A N/A N/A 0.24 ppb (3) 13.0 μg/m3 (12) 4.9 μg/m3 (20) 20.0
 
Sept. 22, 2020, 9 a.m. N/A N/A N/A 12.0 ppb (11) N/A N/A N/A 0.24 ppb (3) 10.0 μg/m3 (9) 5.0 μg/m3 (21) 21.0
 
Sept. 22, 2020, 8 a.m. N/A N/A N/A 15.0 ppb (14) N/A N/A N/A 0.22 ppb (2) 13.0 μg/m3 (12) 5.3 μg/m3 (22) 22.0
 
Sept. 22, 2020, 7 a.m. N/A N/A N/A 11.0 ppb (10) N/A N/A N/A N/A 10.0 μg/m3 (9) 4.8 μg/m3 (20) 20.0
 
Sept. 22, 2020, 6 a.m. N/A N/A N/A 16.0 ppb (15) N/A N/A N/A 0.25 ppb (3) 13.0 μg/m3 (12) 6.0 μg/m3 (25) 25.0
 
Sept. 22, 2020, 5 a.m. N/A N/A N/A 17.0 ppb (16) N/A N/A N/A 0.29 ppb (3) 15.0 μg/m3 (14) 6.0 μg/m3 (25) 25.0
 
Sept. 22, 2020, 4 a.m. N/A N/A N/A 19.0 ppb (18) N/A N/A N/A 0.34 ppb (4) 14.0 μg/m3 (13) 6.3 μg/m3 (26) 26.0
 
Sept. 22, 2020, 3 a.m. N/A N/A N/A 22.0 ppb (20) N/A N/A N/A 0.4 ppb (4) 14.0 μg/m3 (13) 6.4 μg/m3 (27) 27.0
 
Sept. 22, 2020, 2 a.m. N/A N/A N/A 23.0 ppb (21) N/A N/A N/A 0.56 ppb (6) 19.0 μg/m3 (17) 7.3 μg/m3 (30) 30.0
 
Sept. 22, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 0.51 ppb (6) 19.0 μg/m3 (17) 6.4 μg/m3 (27) 27.0
 
Sept. 22, 2020, midnight N/A N/A N/A 27.0 ppb (25) N/A N/A N/A 0.41 ppb (5) 19.0 μg/m3 (17) 6.5 μg/m3 (27) 27.0
 
Sept. 21, 2020, 11 p.m. N/A N/A N/A 24.0 ppb (22) N/A N/A N/A 0.32 ppb (4) 17.0 μg/m3 (15) 4.7 μg/m3 (20) 22.0
 
Sept. 21, 2020, 10 p.m. N/A N/A N/A 8.0 ppb (7) N/A N/A N/A 0.18 ppb (2) 11.0 μg/m3 (10) 3.3 μg/m3 (14) 14.0
 
Sept. 21, 2020, 9 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.14 ppb (2) 11.0 μg/m3 (10) 2.9 μg/m3 (12) 12.0
 
Sept. 21, 2020, 8 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.14 ppb (2) 11.0 μg/m3 (10) 2.7 μg/m3 (11) 11.0
 
Sept. 21, 2020, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.17 ppb (2) 14.0 μg/m3 (13) 3.0 μg/m3 (12) 13.0
 
Sept. 21, 2020, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.17 ppb (2) 13.0 μg/m3 (12) 2.8 μg/m3 (12) 12.0
 
Sept. 21, 2020, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.16 ppb (2) 13.0 μg/m3 (12) 3.2 μg/m3 (13) 13.0
 
Sept. 21, 2020, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A 12.0 μg/m3 (11) 3.5 μg/m3 (15) 15.0
 
Sept. 21, 2020, 3 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.16 ppb (2) 15.0 μg/m3 (14) 3.9 μg/m3 (16) 16.0
 
Sept. 21, 2020, 2 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.18 ppb (2) 15.0 μg/m3 (14) 4.7 μg/m3 (20) 20.0
 
Sept. 21, 2020, 1 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A 0.18 ppb (2) 16.0 μg/m3 (15) 5.0 μg/m3 (21) 21.0
 
Sept. 21, 2020, noon N/A N/A N/A 7.0 ppb (6) N/A N/A N/A 0.2 ppb (2) 14.0 μg/m3 (13) 5.5 μg/m3 (23) 23.0
 
Sept. 21, 2020, 11 a.m. N/A N/A N/A 10.0 ppb (9) N/A N/A N/A 0.24 ppb (3) 14.0 μg/m3 (13) 5.6 μg/m3 (23) 23.0
 
Sept. 21, 2020, 10 a.m. N/A N/A N/A 10.0 ppb (9) N/A N/A N/A 0.22 ppb (2) 17.0 μg/m3 (15) 5.4 μg/m3 (23) 23.0
 
Sept. 21, 2020, 9 a.m. N/A N/A N/A 8.0 ppb (7) N/A N/A N/A 0.18 ppb (2) 17.0 μg/m3 (15) 5.5 μg/m3 (23) 23.0
 
Sept. 21, 2020, 8 a.m. N/A N/A N/A 11.0 ppb (10) N/A N/A N/A 0.19 ppb (2) 11.0 μg/m3 (10) 5.4 μg/m3 (23) 23.0
 
Sept. 21, 2020, 7 a.m. N/A N/A N/A 10.0 ppb (9) N/A N/A N/A N/A 12.0 μg/m3 (11) 5.7 μg/m3 (24) 24.0
 
Sept. 21, 2020, 6 a.m. N/A N/A N/A 11.0 ppb (10) N/A N/A N/A 0.18 ppb (2) 13.0 μg/m3 (12) 6.0 μg/m3 (25) 25.0
 
Sept. 21, 2020, 5 a.m. N/A N/A N/A 15.0 ppb (14) N/A N/A N/A 0.25 ppb (3) 12.0 μg/m3 (11) 6.7 μg/m3 (28) 28.0
 
Sept. 21, 2020, 4 a.m. N/A N/A N/A 16.0 ppb (15) N/A N/A N/A 0.27 ppb (3) 13.0 μg/m3 (12) 7.0 μg/m3 (29) 29.0
 
Sept. 21, 2020, 3 a.m. N/A N/A N/A 18.0 ppb (17) N/A N/A N/A 0.32 ppb (4) 14.0 μg/m3 (13) 7.5 μg/m3 (31) 31.0
 
Sept. 21, 2020, 2 a.m. N/A N/A N/A 23.0 ppb (21) N/A N/A N/A 0.49 ppb (5) 16.0 μg/m3 (15) 9.0 μg/m3 (38) 38.0
 
Sept. 21, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 16.0 μg/m3 (15) 8.2 μg/m3 (34) 34.0
 
Sept. 21, 2020, midnight N/A N/A N/A 24.0 ppb (22) N/A N/A N/A 0.47 ppb (5) 15.0 μg/m3 (14) 7.6 μg/m3 (32) 32.0
 
Sept. 20, 2020, 11 p.m. N/A N/A N/A 10.0 ppb (9) N/A N/A N/A 0.25 ppb (3) 11.0 μg/m3 (10) 5.2 μg/m3 (22) 22.0
 
Sept. 20, 2020, 10 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.16 ppb (2) 9.0 μg/m3 (8) 3.6 μg/m3 (15) 15.0
 
Sept. 20, 2020, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.13 ppb (1) 9.0 μg/m3 (8) 3.5 μg/m3 (15) 15.0
 
Sept. 20, 2020, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.12 ppb (1) 9.0 μg/m3 (8) 3.5 μg/m3 (15) 15.0
 
Sept. 20, 2020, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.13 ppb (1) 9.0 μg/m3 (8) 3.3 μg/m3 (14) 14.0
 
Sept. 20, 2020, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 0.13 ppb (1) 10.0 μg/m3 (9) 2.8 μg/m3 (12) 12.0
 
Sept. 20, 2020, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 0.13 ppb (1) 9.0 μg/m3 (8) 2.6 μg/m3 (11) 11.0
 
Sept. 20, 2020, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 0.12 ppb (1) 7.0 μg/m3 (6) 2.8 μg/m3 (12) 12.0
 
Sept. 20, 2020, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.13 ppb (1) 9.0 μg/m3 (8) 2.7 μg/m3 (11) 11.0
 
Sept. 20, 2020, 2 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.14 ppb (2) 7.0 μg/m3 (6) 3.0 μg/m3 (12) 12.0
 
Sept. 20, 2020, 1 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.15 ppb (2) 8.0 μg/m3 (7) 3.4 μg/m3 (14) 14.0
 
Sept. 20, 2020, noon N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.15 ppb (2) 8.0 μg/m3 (7) 3.7 μg/m3 (15) 15.0
 
Sept. 20, 2020, 11 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.18 ppb (2) 8.0 μg/m3 (7) 3.7 μg/m3 (15) 15.0
 
Sept. 20, 2020, 10 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.15 ppb (2) 7.0 μg/m3 (6) 3.7 μg/m3 (15) 15.0
 
Sept. 20, 2020, 9 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.13 ppb (1) 7.0 μg/m3 (6) 3.7 μg/m3 (15) 15.0
 
Sept. 20, 2020, 8 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.11 ppb (1) 7.0 μg/m3 (6) 3.6 μg/m3 (15) 15.0
 
Sept. 20, 2020, 7 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A N/A 7.0 μg/m3 (6) 3.7 μg/m3 (15) 15.0
 
Sept. 20, 2020, 6 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.14 ppb (2) 8.0 μg/m3 (7) 3.8 μg/m3 (16) 16.0
 
Sept. 20, 2020, 5 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.15 ppb (2) 8.0 μg/m3 (7) 4.4 μg/m3 (18) 18.0
 
Sept. 20, 2020, 4 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.18 ppb (2) 10.0 μg/m3 (9) 5.2 μg/m3 (22) 22.0
 
Sept. 20, 2020, 3 a.m. N/A N/A N/A 8.0 ppb (7) N/A N/A N/A 0.22 ppb (2) 11.0 μg/m3 (10) 5.7 μg/m3 (24) 24.0
 
Sept. 20, 2020, 2 a.m. N/A N/A N/A 11.0 ppb (10) N/A N/A N/A 0.23 ppb (3) 13.0 μg/m3 (12) 6.4 μg/m3 (27) 27.0
 
Sept. 20, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 0.33 ppb (4) 14.0 μg/m3 (13) 6.6 μg/m3 (28) 28.0
 
Sept. 20, 2020, midnight N/A N/A N/A 16.0 ppb (15) N/A N/A N/A 0.29 ppb (3) 17.0 μg/m3 (15) 7.0 μg/m3 (29) 29.0
 
Sept. 19, 2020, 11 p.m. N/A N/A N/A 16.0 ppb (15) N/A N/A N/A 0.31 ppb (3) 13.0 μg/m3 (12) 5.5 μg/m3 (23) 23.0
 
Sept. 19, 2020, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.17 ppb (2) 11.0 μg/m3 (10) 2.5 μg/m3 (10) 10.0
 
Sept. 19, 2020, 9 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.15 ppb (2) 8.0 μg/m3 (7) 2.0 μg/m3 (8) 8.0
 
Sept. 19, 2020, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.12 ppb (1) 7.0 μg/m3 (6) 1.9 μg/m3 (8) 8.0
 
Sept. 19, 2020, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 0.11 ppb (1) 6.0 μg/m3 (5) 1.9 μg/m3 (8) 8.0
 
Sept. 19, 2020, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 0.12 ppb (1) 8.0 μg/m3 (7) 2.0 μg/m3 (8) 8.0
 
Sept. 19, 2020, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 0.12 ppb (1) 9.0 μg/m3 (8) 2.1 μg/m3 (9) 9.0
 
Sept. 19, 2020, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 0.12 ppb (1) 6.0 μg/m3 (5) 2.0 μg/m3 (8) 8.0
 
Sept. 19, 2020, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 0.13 ppb (1) 8.0 μg/m3 (7) 2.1 μg/m3 (9) 9.0
 
Sept. 19, 2020, 2 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.13 ppb (1) 9.0 μg/m3 (8) 2.4 μg/m3 (10) 10.0
 
Sept. 19, 2020, 1 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.13 ppb (1) 8.0 μg/m3 (7) 2.8 μg/m3 (12) 12.0
 
Sept. 19, 2020, noon N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.13 ppb (1) 7.0 μg/m3 (6) 3.1 μg/m3 (13) 13.0
 
Sept. 19, 2020, 11 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.14 ppb (2) 7.0 μg/m3 (6) 3.5 μg/m3 (15) 15.0
 
Sept. 19, 2020, 10 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.13 ppb (1) 7.0 μg/m3 (6) 3.5 μg/m3 (15) 15.0
 
Sept. 19, 2020, 9 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.12 ppb (1) 9.0 μg/m3 (8) 4.1 μg/m3 (17) 17.0
 
Sept. 19, 2020, 8 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.12 ppb (1) 8.0 μg/m3 (7) 4.3 μg/m3 (18) 18.0
 
Sept. 19, 2020, 7 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A N/A 8.0 μg/m3 (7) 3.2 μg/m3 (13) 13.0
 
Sept. 19, 2020, 6 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.12 ppb (1) 8.0 μg/m3 (7) 2.9 μg/m3 (12) 12.0
 
Sept. 19, 2020, 5 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.13 ppb (1) 10.0 μg/m3 (9) 3.2 μg/m3 (13) 13.0
 
Sept. 19, 2020, 4 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.13 ppb (1) 11.0 μg/m3 (10) 2.9 μg/m3 (12) 12.0
 
Sept. 19, 2020, 3 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.12 ppb (1) 13.0 μg/m3 (12) 3.3 μg/m3 (14) 14.0
 
Sept. 19, 2020, 2 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 0.12 ppb (1) 17.0 μg/m3 (15) 3.3 μg/m3 (14) 15.0
 
Sept. 19, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A 0.12 ppb (1) 12.0 μg/m3 (11) 3.1 μg/m3 (13) 13.0
 
Sept. 19, 2020, midnight N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.13 ppb (1) 10.0 μg/m3 (9) 2.9 μg/m3 (12) 12.0
 
Sept. 18, 2020, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.13 ppb (1) 14.0 μg/m3 (13) 3.6 μg/m3 (15) 15.0
 
Sept. 18, 2020, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.16 ppb (2) 15.0 μg/m3 (14) 6.2 μg/m3 (26) 26.0
 
Sept. 18, 2020, 9 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.16 ppb (2) 14.0 μg/m3 (13) 6.2 μg/m3 (26) 26.0
 
Sept. 18, 2020, 8 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.18 ppb (2) 16.0 μg/m3 (15) 6.9 μg/m3 (29) 29.0
 
Sept. 18, 2020, 7 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.18 ppb (2) 18.0 μg/m3 (16) 7.3 μg/m3 (30) 30.0
 
Sept. 18, 2020, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.15 ppb (2) 17.0 μg/m3 (15) 6.5 μg/m3 (27) 27.0
 
Sept. 18, 2020, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.15 ppb (2) 20.0 μg/m3 (18) 6.3 μg/m3 (26) 26.0
 
Sept. 18, 2020, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.15 ppb (2) 18.0 μg/m3 (16) 6.6 μg/m3 (28) 28.0
 
Sept. 18, 2020, 3 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.17 ppb (2) 21.0 μg/m3 (19) 7.9 μg/m3 (33) 33.0