ID: 268

AQSQID: 090031003

Site Name: East Hartford

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

Updated: Feb. 28, 2021, 6:32 a.m.

Location: E Hartford (Burnham), CT

Reporting: True, Located: True

Current AQI: 43.0

E Hartford (Burnham) CT, US: 41.7847, -72.6297

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Feb. 28, 2021, 5 a.m. N/A N/A N/A 10.0 ppb (10) N/A N/A N/A N/A 13.1 μg/m3 (13) 10.1 μg/m3 (43) 43.0
 
Feb. 28, 2021, 4 a.m. N/A N/A N/A 16.0 ppb (16) N/A N/A 15.0 ppb (14) N/A 13.6 μg/m3 (13) 9.5 μg/m3 (40) 40.0
 
Feb. 28, 2021, 3 a.m. N/A N/A N/A 27.0 ppb (26) N/A N/A 0.0 ppb (0) N/A 17.2 μg/m3 (16) 12.2 μg/m3 (52) 52.0
 
Feb. 28, 2021, 2 a.m. N/A N/A N/A 28.0 ppb (27) N/A N/A 0.0 ppb (0) N/A 11.7 μg/m3 (11) 8.5 μg/m3 (36) 36.0
 
Feb. 28, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 10.7 μg/m3 (10) 7.5 μg/m3 (32) 32.0
 
Feb. 28, 2021, midnight N/A N/A N/A 23.0 ppb (22) N/A N/A 6.0 ppb (6) N/A 10.8 μg/m3 (10) 7.9 μg/m3 (33) 33.0
 
Feb. 27, 2021, 11 p.m. N/A N/A N/A 16.0 ppb (16) N/A N/A 13.0 ppb (13) N/A 13.2 μg/m3 (13) 9.4 μg/m3 (40) 40.0
 
Feb. 27, 2021, 10 p.m. N/A N/A N/A 15.0 ppb (15) N/A N/A 14.0 ppb (13) N/A 14.5 μg/m3 (14) 11.1 μg/m3 (47) 47.0
 
Feb. 27, 2021, 9 p.m. N/A N/A N/A 14.0 ppb (14) N/A N/A 18.0 ppb (17) N/A 12.7 μg/m3 (12) 9.9 μg/m3 (42) 42.0
 
Feb. 27, 2021, 8 p.m. N/A N/A N/A 13.0 ppb (13) N/A N/A 18.0 ppb (17) N/A 11.7 μg/m3 (11) 9.2 μg/m3 (39) 39.0
 
Feb. 27, 2021, 7 p.m. N/A N/A N/A 12.0 ppb (12) N/A N/A 19.0 ppb (18) N/A 10.0 μg/m3 (10) 7.4 μg/m3 (31) 31.0
 
Feb. 27, 2021, 6 p.m. N/A N/A N/A 14.0 ppb (14) N/A N/A 18.0 ppb (17) N/A 9.7 μg/m3 (9) 7.1 μg/m3 (30) 30.0
 
Feb. 27, 2021, 5 p.m. N/A N/A N/A 17.0 ppb (17) N/A N/A 15.0 ppb (14) N/A 12.6 μg/m3 (12) 9.4 μg/m3 (40) 40.0
 
Feb. 27, 2021, 4 p.m. N/A N/A N/A 13.0 ppb (13) N/A N/A 23.0 ppb (22) N/A 9.3 μg/m3 (9) 6.5 μg/m3 (28) 28.0
 
Feb. 27, 2021, 3 p.m. N/A N/A N/A 8.0 ppb (8) N/A N/A 28.0 ppb (26) N/A 11.0 μg/m3 (11) 6.2 μg/m3 (26) 26.0
 
Feb. 27, 2021, 2 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 34.0 ppb (32) N/A 10.2 μg/m3 (10) 5.3 μg/m3 (23) 32.0
 
Feb. 27, 2021, 1 p.m. N/A N/A N/A 12.0 ppb (12) N/A N/A 19.0 ppb (18) N/A 12.9 μg/m3 (12) 8.2 μg/m3 (35) 35.0
 
Feb. 27, 2021, noon N/A N/A N/A 11.0 ppb (11) N/A N/A 20.0 ppb (19) N/A 10.5 μg/m3 (10) 6.5 μg/m3 (28) 28.0
 
Feb. 27, 2021, 11 a.m. N/A N/A N/A 12.0 ppb (12) N/A N/A 17.0 ppb (16) N/A 10.8 μg/m3 (10) 6.0 μg/m3 (25) 25.0
 
Feb. 27, 2021, 10 a.m. N/A N/A N/A 13.0 ppb (13) N/A N/A 22.0 ppb (21) N/A 9.5 μg/m3 (9) 5.6 μg/m3 (24) 24.0
 
Feb. 27, 2021, 9 a.m. N/A N/A N/A 18.0 ppb (17) N/A N/A 17.0 ppb (16) N/A 10.4 μg/m3 (10) 6.6 μg/m3 (28) 28.0
 
Feb. 27, 2021, 8 a.m. N/A N/A N/A 26.0 ppb (25) N/A N/A 10.0 ppb (10) N/A 12.7 μg/m3 (12) 8.1 μg/m3 (34) 34.0
 
Feb. 27, 2021, 7 a.m. N/A N/A N/A 22.0 ppb (21) N/A N/A 14.0 ppb (13) N/A 15.9 μg/m3 (15) 10.1 μg/m3 (43) 43.0
 
Feb. 27, 2021, 6 a.m. N/A N/A N/A 20.0 ppb (19) N/A N/A 13.0 ppb (13) N/A 13.1 μg/m3 (13) 8.4 μg/m3 (36) 36.0
 
Feb. 27, 2021, 5 a.m. N/A N/A N/A 15.0 ppb (15) N/A N/A N/A N/A 13.0 μg/m3 (13) 7.0 μg/m3 (30) 30.0
 
Feb. 27, 2021, 4 a.m. N/A N/A N/A 14.0 ppb (14) N/A N/A 24.0 ppb (23) N/A 12.4 μg/m3 (12) 6.7 μg/m3 (28) 28.0
 
Feb. 27, 2021, 3 a.m. N/A N/A N/A 9.0 ppb (9) N/A N/A 33.0 ppb (31) N/A 13.5 μg/m3 (13) 6.2 μg/m3 (26) 31.0
 
Feb. 27, 2021, 2 a.m. N/A N/A N/A 10.0 ppb (10) N/A N/A 33.0 ppb (31) N/A 13.8 μg/m3 (13) 6.3 μg/m3 (27) 31.0
 
Feb. 27, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 13.5 μg/m3 (13) 6.6 μg/m3 (28) 35.0
 
Feb. 27, 2021, midnight N/A N/A N/A 11.0 ppb (11) N/A N/A 33.0 ppb (31) N/A 15.7 μg/m3 (15) 7.7 μg/m3 (33) 33.0
 
Feb. 26, 2021, 11 p.m. N/A N/A N/A 11.0 ppb (11) N/A N/A 33.0 ppb (31) N/A 17.6 μg/m3 (17) 7.8 μg/m3 (33) 33.0
 
Feb. 26, 2021, 10 p.m. N/A N/A N/A 10.0 ppb (10) N/A N/A 37.0 ppb (35) N/A 13.3 μg/m3 (13) 6.0 μg/m3 (25) 35.0
 
Feb. 26, 2021, 9 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 43.0 ppb (40) N/A 13.4 μg/m3 (13) 6.0 μg/m3 (25) 40.0
 
Feb. 26, 2021, 8 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 44.0 ppb (41) N/A 12.2 μg/m3 (12) 6.2 μg/m3 (26) 41.0
 
Feb. 26, 2021, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 45.0 ppb (42) N/A 12.6 μg/m3 (12) 6.1 μg/m3 (26) 42.0
 
Feb. 26, 2021, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 44.0 ppb (41) N/A 11.8 μg/m3 (11) 6.1 μg/m3 (26) 41.0
 
Feb. 26, 2021, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 44.0 ppb (41) N/A 10.4 μg/m3 (10) 6.0 μg/m3 (25) 41.0
 
Feb. 26, 2021, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) N/A 12.0 μg/m3 (12) 6.4 μg/m3 (27) 39.0
 
Feb. 26, 2021, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 41.0 ppb (38) N/A 12.4 μg/m3 (12) 6.6 μg/m3 (28) 38.0
 
Feb. 26, 2021, 2 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 39.0 ppb (37) N/A 13.3 μg/m3 (13) 6.6 μg/m3 (28) 37.0
 
Feb. 26, 2021, 1 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 35.0 ppb (33) N/A 12.5 μg/m3 (12) 6.0 μg/m3 (25) 33.0
 
Feb. 26, 2021, noon N/A N/A N/A 26.0 ppb (25) N/A N/A 16.0 ppb (15) N/A 15.9 μg/m3 (15) 5.9 μg/m3 (25) 25.0
 
Feb. 26, 2021, 11 a.m. N/A N/A N/A 46.0 ppb (44) N/A N/A 1.0 ppb (1) N/A 11.7 μg/m3 (11) 5.3 μg/m3 (23) 44.0
 
Feb. 26, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A 12.4 μg/m3 (12) 5.3 μg/m3 (23) 23.0
 
Feb. 26, 2021, 9 a.m. N/A N/A N/A 18.0 ppb (17) N/A N/A 18.0 ppb (17) N/A 10.5 μg/m3 (10) 5.6 μg/m3 (24) 24.0
 
Feb. 26, 2021, 8 a.m. N/A N/A N/A 12.0 ppb (12) N/A N/A 24.0 ppb (23) N/A 10.0 μg/m3 (10) 5.0 μg/m3 (21) 23.0
 
Feb. 26, 2021, 7 a.m. N/A N/A N/A 17.0 ppb (17) N/A N/A 20.0 ppb (19) N/A 10.4 μg/m3 (10) 5.0 μg/m3 (21) 21.0
 
Feb. 26, 2021, 6 a.m. N/A N/A N/A 27.0 ppb (26) N/A N/A 8.0 ppb (8) N/A 11.9 μg/m3 (12) 5.7 μg/m3 (24) 26.0
 
Feb. 26, 2021, 5 a.m. N/A N/A N/A 18.0 ppb (17) N/A N/A N/A N/A 12.6 μg/m3 (12) 5.6 μg/m3 (24) 24.0
 
Feb. 26, 2021, 4 a.m. N/A N/A N/A 15.0 ppb (15) N/A N/A 19.0 ppb (18) N/A 11.8 μg/m3 (11) 5.2 μg/m3 (22) 22.0
 
Feb. 26, 2021, 3 a.m. N/A N/A N/A 10.0 ppb (10) N/A N/A 27.0 ppb (25) N/A 11.0 μg/m3 (11) 4.7 μg/m3 (20) 25.0
 
Feb. 26, 2021, 2 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 33.0 ppb (31) N/A 8.2 μg/m3 (8) 3.8 μg/m3 (16) 31.0
 
Feb. 26, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 9.2 μg/m3 (9) 3.7 μg/m3 (16) 32.0
 
Feb. 26, 2021, midnight N/A N/A N/A 4.0 ppb (4) N/A N/A 38.0 ppb (36) N/A 6.8 μg/m3 (7) 3.1 μg/m3 (13) 36.0
 
Feb. 25, 2021, 11 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 40.0 ppb (38) N/A 7.8 μg/m3 (8) 3.0 μg/m3 (13) 38.0
 
Feb. 25, 2021, 10 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 42.0 ppb (39) N/A 6.1 μg/m3 (6) 2.4 μg/m3 (10) 39.0
 
Feb. 25, 2021, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 43.0 ppb (40) N/A 6.2 μg/m3 (6) 2.1 μg/m3 (9) 40.0
 
Feb. 25, 2021, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 43.0 ppb (40) N/A 6.8 μg/m3 (7) 2.6 μg/m3 (11) 40.0
 
Feb. 25, 2021, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) N/A 6.1 μg/m3 (6) 2.3 μg/m3 (10) 39.0
 
Feb. 25, 2021, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) N/A 7.2 μg/m3 (7) 1.9 μg/m3 (8) 39.0
 
Feb. 25, 2021, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) N/A 5.3 μg/m3 (5) 1.7 μg/m3 (8) 39.0
 
Feb. 25, 2021, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 41.0 ppb (38) N/A 5.1 μg/m3 (5) 1.9 μg/m3 (8) 38.0
 
Feb. 25, 2021, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 40.0 ppb (38) N/A 4.6 μg/m3 (5) 2.0 μg/m3 (9) 38.0
 
Feb. 25, 2021, 2 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 39.0 ppb (37) N/A 4.4 μg/m3 (5) 2.1 μg/m3 (9) 37.0
 
Feb. 25, 2021, 1 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 37.0 ppb (35) N/A 4.1 μg/m3 (4) 2.1 μg/m3 (9) 35.0
 
Feb. 25, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Feb. 24, 2021, 7 p.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 40.0 ppb (38) N/A 13.5 μg/m3 (13) 6.1 μg/m3 (26) 38.0
 
Feb. 24, 2021, 6 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 42.0 ppb (39) N/A 9.2 μg/m3 (9) 4.1 μg/m3 (18) 39.0
 
Feb. 24, 2021, 5 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 40.0 ppb (38) N/A 12.4 μg/m3 (12) 5.2 μg/m3 (22) 38.0
 
Feb. 24, 2021, 4 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 38.0 ppb (36) N/A 11.9 μg/m3 (12) 5.7 μg/m3 (24) 36.0
 
Feb. 24, 2021, 3 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 36.0 ppb (34) N/A 12.6 μg/m3 (12) 6.0 μg/m3 (25) 34.0
 
Feb. 24, 2021, 2 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 33.0 ppb (31) N/A 19.8 μg/m3 (19) 7.1 μg/m3 (30) 31.0
 
Feb. 24, 2021, 1 p.m. N/A N/A N/A 14.0 ppb (14) N/A N/A 25.0 ppb (24) N/A 14.4 μg/m3 (14) 8.5 μg/m3 (36) 36.0
 
Feb. 24, 2021, noon N/A N/A N/A 26.0 ppb (25) N/A N/A 13.0 ppb (13) N/A 11.6 μg/m3 (11) 6.3 μg/m3 (27) 27.0
 
Feb. 24, 2021, 11 a.m. N/A N/A N/A 34.0 ppb (33) N/A N/A 1.0 ppb (1) N/A 10.5 μg/m3 (10) 5.9 μg/m3 (25) 33.0
 
Feb. 24, 2021, 10 a.m. N/A N/A N/A 24.0 ppb (23) N/A N/A 12.0 ppb (12) N/A 8.7 μg/m3 (9) 5.2 μg/m3 (22) 23.0
 
Feb. 24, 2021, 9 a.m. N/A N/A N/A 11.0 ppb (11) N/A N/A 25.0 ppb (24) N/A 5.9 μg/m3 (6) 3.8 μg/m3 (16) 24.0
 
Feb. 24, 2021, 8 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 32.0 ppb (30) N/A 7.7 μg/m3 (8) 4.3 μg/m3 (18) 30.0
 
Feb. 24, 2021, 7 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 35.0 ppb (33) N/A 7.8 μg/m3 (8) 4.5 μg/m3 (19) 33.0
 
Feb. 24, 2021, 6 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 36.0 ppb (34) N/A 10.3 μg/m3 (10) 5.4 μg/m3 (23) 34.0
 
Feb. 24, 2021, 5 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A 10.6 μg/m3 (10) 6.0 μg/m3 (25) 25.0
 
Feb. 24, 2021, 4 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 37.0 ppb (35) N/A 9.5 μg/m3 (9) 5.9 μg/m3 (25) 35.0
 
Feb. 24, 2021, 3 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 33.0 ppb (31) N/A 10.0 μg/m3 (10) 7.1 μg/m3 (30) 31.0
 
Feb. 24, 2021, 2 a.m. N/A N/A N/A 10.0 ppb (10) N/A N/A 28.0 ppb (26) N/A 14.2 μg/m3 (14) 11.4 μg/m3 (48) 48.0
 
Feb. 24, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 16.5 μg/m3 (16) 13.1 μg/m3 (54) 54.0
 
Feb. 24, 2021, midnight N/A N/A N/A 14.0 ppb (14) N/A N/A 27.0 ppb (25) N/A 18.7 μg/m3 (18) 15.5 μg/m3 (59) 59.0
 
Feb. 23, 2021, 11 p.m. N/A N/A N/A 14.0 ppb (14) N/A N/A 27.0 ppb (25) N/A 19.1 μg/m3 (18) 15.3 μg/m3 (58) 58.0
 
Feb. 23, 2021, 10 p.m. N/A N/A N/A 12.0 ppb (12) N/A N/A 31.0 ppb (29) N/A 17.0 μg/m3 (16) 12.8 μg/m3 (53) 53.0
 
Feb. 23, 2021, 9 p.m. N/A N/A N/A 8.0 ppb (8) N/A N/A 36.0 ppb (34) N/A 16.9 μg/m3 (16) 11.0 μg/m3 (46) 46.0
 
Feb. 23, 2021, 8 p.m. N/A N/A N/A 14.0 ppb (14) N/A N/A 31.0 ppb (29) N/A 18.5 μg/m3 (18) 13.5 μg/m3 (54) 54.0
 
Feb. 23, 2021, 7 p.m. N/A N/A N/A 11.0 ppb (11) N/A N/A 35.0 ppb (33) N/A 13.4 μg/m3 (13) 9.9 μg/m3 (42) 42.0
 
Feb. 23, 2021, 6 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 41.0 ppb (38) N/A 14.9 μg/m3 (14) 10.5 μg/m3 (44) 44.0
 
Feb. 23, 2021, 5 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 44.0 ppb (41) N/A 16.7 μg/m3 (16) 10.8 μg/m3 (46) 46.0
 
Feb. 23, 2021, 4 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 39.0 ppb (37) N/A 16.0 μg/m3 (15) 11.7 μg/m3 (49) 49.0
 
Feb. 23, 2021, 3 p.m. N/A N/A N/A 8.0 ppb (8) N/A N/A 35.0 ppb (33) N/A 16.8 μg/m3 (16) 12.0 μg/m3 (50) 50.0
 
Feb. 23, 2021, 2 p.m. N/A N/A N/A 15.0 ppb (15) N/A N/A 25.0 ppb (24) N/A 16.8 μg/m3 (16) 13.5 μg/m3 (54) 54.0
 
Feb. 23, 2021, 1 p.m. N/A N/A N/A 21.0 ppb (20) N/A N/A 18.0 ppb (17) N/A 16.3 μg/m3 (16) 13.2 μg/m3 (54) 54.0
 
Feb. 23, 2021, noon N/A N/A N/A 29.0 ppb (28) N/A N/A 10.0 ppb (10) N/A 16.1 μg/m3 (15) 13.1 μg/m3 (54) 54.0
 
Feb. 23, 2021, 11 a.m. N/A N/A N/A 37.0 ppb (35) N/A N/A 2.0 ppb (2) N/A 16.7 μg/m3 (16) 13.7 μg/m3 (55) 55.0
 
Feb. 23, 2021, 10 a.m. N/A N/A N/A 42.0 ppb (40) N/A N/A 3.0 ppb (3) N/A 14.1 μg/m3 (14) 11.9 μg/m3 (50) 50.0
 
Feb. 23, 2021, 9 a.m. N/A N/A N/A 25.0 ppb (24) N/A N/A 8.0 ppb (8) N/A 13.2 μg/m3 (13) 10.9 μg/m3 (46) 46.0
 
Feb. 23, 2021, 8 a.m. N/A N/A N/A 15.0 ppb (15) N/A N/A 20.0 ppb (19) N/A 11.7 μg/m3 (11) 9.6 μg/m3 (40) 40.0
 
Feb. 23, 2021, 7 a.m. N/A N/A N/A 11.0 ppb (11) N/A N/A 25.0 ppb (24) N/A 11.0 μg/m3 (11) 8.9 μg/m3 (38) 38.0
 
Feb. 23, 2021, 6 a.m. N/A N/A N/A 16.0 ppb (16) N/A N/A 20.0 ppb (19) N/A 12.5 μg/m3 (12) 9.9 μg/m3 (42) 42.0
 
Feb. 23, 2021, 5 a.m. N/A N/A N/A 15.0 ppb (15) N/A N/A N/A N/A 10.8 μg/m3 (10) 8.6 μg/m3 (36) 36.0
 
Feb. 23, 2021, 4 a.m. N/A N/A N/A 16.0 ppb (16) N/A N/A 22.0 ppb (21) N/A 10.9 μg/m3 (11) 8.5 μg/m3 (36) 36.0
 
Feb. 23, 2021, 3 a.m. N/A N/A N/A 12.0 ppb (12) N/A N/A 27.0 ppb (25) N/A 8.7 μg/m3 (9) 6.7 μg/m3 (28) 28.0
 
Feb. 23, 2021, 2 a.m. N/A N/A N/A 11.0 ppb (11) N/A N/A 27.0 ppb (25) N/A 7.7 μg/m3 (8) 5.4 μg/m3 (23) 25.0
 
Feb. 23, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 6.9 μg/m3 (7) 4.4 μg/m3 (19) 28.0
 
Feb. 23, 2021, midnight N/A N/A N/A 21.0 ppb (20) N/A N/A 21.0 ppb (20) N/A 11.0 μg/m3 (11) 7.9 μg/m3 (33) 33.0
 
Feb. 22, 2021, 11 p.m. N/A N/A N/A 36.0 ppb (34) N/A N/A 3.0 ppb (3) N/A 18.6 μg/m3 (18) 15.2 μg/m3 (58) 58.0
 
Feb. 22, 2021, 10 p.m. N/A N/A N/A 26.0 ppb (25) N/A N/A 13.0 ppb (13) N/A 13.0 μg/m3 (13) 10.4 μg/m3 (44) 44.0
 
Feb. 22, 2021, 9 p.m. N/A N/A N/A 17.0 ppb (17) N/A N/A 23.0 ppb (22) N/A 10.1 μg/m3 (10) 6.4 μg/m3 (27) 27.0
 
Feb. 22, 2021, 8 p.m. N/A N/A N/A 10.0 ppb (10) N/A N/A 32.0 ppb (30) N/A 8.8 μg/m3 (9) 4.1 μg/m3 (18) 30.0
 
Feb. 22, 2021, 7 p.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 36.0 ppb (34) N/A 10.0 μg/m3 (10) 4.9 μg/m3 (21) 34.0
 
Feb. 22, 2021, 6 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 38.0 ppb (36) N/A N/A N/A 36.0
 
Feb. 22, 2021, 5 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 40.0 ppb (38) N/A N/A N/A 38.0
 
Feb. 22, 2021, 4 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 39.0 ppb (37) N/A N/A N/A 37.0
 
Feb. 22, 2021, 3 p.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 33.0 ppb (31) N/A N/A N/A 31.0
 
Feb. 22, 2021, 2 p.m. N/A N/A N/A 11.0 ppb (11) N/A N/A 34.0 ppb (32) N/A 21.1 μg/m3 (20) 13.7 μg/m3 (55) 55.0
 
Feb. 22, 2021, 1 p.m. N/A N/A N/A 28.0 ppb (27) N/A N/A 16.0 ppb (15) N/A 32.6 μg/m3 (31) 17.7 μg/m3 (63) 63.0
 
Feb. 22, 2021, noon N/A N/A N/A 36.0 ppb (34) N/A N/A 3.0 ppb (3) N/A 29.8 μg/m3 (28) 17.3 μg/m3 (62) 62.0
 
Feb. 22, 2021, 11 a.m. N/A N/A N/A 36.0 ppb (34) N/A N/A 1.0 ppb (1) N/A 23.8 μg/m3 (23) 16.0 μg/m3 (60) 60.0
 
Feb. 22, 2021, 10 a.m. N/A N/A N/A 33.0 ppb (32) N/A N/A 3.0 ppb (3) N/A 19.9 μg/m3 (19) 13.8 μg/m3 (55) 55.0
 
Feb. 22, 2021, 9 a.m. N/A N/A N/A 31.0 ppb (30) N/A N/A 4.0 ppb (4) N/A 20.4 μg/m3 (19) 14.4 μg/m3 (56) 56.0
 
Feb. 22, 2021, 8 a.m. N/A N/A N/A 33.0 ppb (32) N/A N/A 2.0 ppb (2) N/A 21.8 μg/m3 (21) 15.6 μg/m3 (59) 59.0
 
Feb. 22, 2021, 7 a.m. N/A N/A N/A 26.0 ppb (25) N/A N/A 9.0 ppb (9) N/A 19.9 μg/m3 (19) 15.0 μg/m3 (58) 58.0
 
Feb. 22, 2021, 6 a.m. N/A N/A N/A 31.0 ppb (30) N/A N/A 5.0 ppb (5) N/A 24.3 μg/m3 (23) 17.8 μg/m3 (63) 63.0
 
Feb. 22, 2021, 5 a.m. N/A N/A N/A 36.0 ppb (34) N/A N/A N/A N/A 24.1 μg/m3 (23) 17.6 μg/m3 (63) 63.0
 
Feb. 22, 2021, 4 a.m. N/A N/A N/A 38.0 ppb (36) N/A N/A 1.0 ppb (1) N/A 23.3 μg/m3 (22) 15.4 μg/m3 (58) 58.0
 
Feb. 22, 2021, 3 a.m. N/A N/A N/A 38.0 ppb (36) N/A N/A 0.0 ppb (0) N/A 20.5 μg/m3 (19) 11.5 μg/m3 (48) 48.0
 
Feb. 22, 2021, 2 a.m. N/A N/A N/A 36.0 ppb (34) N/A N/A 1.0 ppb (1) N/A 24.7 μg/m3 (23) 11.9 μg/m3 (50) 50.0
 
Feb. 22, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 14.1 μg/m3 (14) 7.4 μg/m3 (31) 31.0
 
Feb. 22, 2021, midnight N/A N/A N/A 16.0 ppb (16) N/A N/A 25.0 ppb (24) N/A 13.2 μg/m3 (13) 6.8 μg/m3 (29) 29.0
 
Feb. 21, 2021, 11 p.m. N/A N/A N/A 11.0 ppb (11) N/A N/A 31.0 ppb (29) N/A 13.0 μg/m3 (13) 5.2 μg/m3 (22) 29.0
 
Feb. 21, 2021, 10 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 39.0 ppb (37) N/A 9.8 μg/m3 (10) 4.2 μg/m3 (18) 37.0
 
Feb. 21, 2021, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 42.0 ppb (39) N/A 9.6 μg/m3 (9) 4.0 μg/m3 (17) 39.0
 
Feb. 21, 2021, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 43.0 ppb (40) N/A 7.3 μg/m3 (7) 3.6 μg/m3 (16) 40.0
 
Feb. 21, 2021, 7 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 43.0 ppb (40) N/A 6.3 μg/m3 (6) 3.3 μg/m3 (14) 40.0
 
Feb. 21, 2021, 6 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 43.0 ppb (40) N/A 5.4 μg/m3 (5) 2.8 μg/m3 (12) 40.0
 
Feb. 21, 2021, 5 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 43.0 ppb (40) N/A 6.0 μg/m3 (6) 2.9 μg/m3 (13) 40.0
 
Feb. 21, 2021, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 41.0 ppb (38) N/A 5.4 μg/m3 (5) 2.9 μg/m3 (13) 38.0
 
Feb. 21, 2021, 3 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 40.0 ppb (38) N/A 5.6 μg/m3 (6) 2.8 μg/m3 (12) 38.0
 
Feb. 21, 2021, 2 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 39.0 ppb (37) N/A 4.5 μg/m3 (5) 3.0 μg/m3 (13) 37.0
 
Feb. 21, 2021, 1 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 37.0 ppb (35) N/A 5.4 μg/m3 (5) 3.4 μg/m3 (15) 35.0
 
Feb. 21, 2021, noon N/A N/A N/A 5.0 ppb (5) N/A N/A 34.0 ppb (32) N/A 7.7 μg/m3 (8) 4.9 μg/m3 (21) 32.0
 
Feb. 21, 2021, 11 a.m. N/A N/A N/A 9.0 ppb (9) N/A N/A 30.0 ppb (28) N/A 8.7 μg/m3 (9) 4.6 μg/m3 (20) 28.0
 
Feb. 21, 2021, 10 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 36.0 ppb (34) N/A 6.1 μg/m3 (6) 4.0 μg/m3 (17) 34.0
 
Feb. 21, 2021, 9 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 38.0 ppb (36) N/A 5.9 μg/m3 (6) 3.8 μg/m3 (16) 36.0
 
Feb. 21, 2021, 8 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 37.0 ppb (35) N/A 6.7 μg/m3 (7) 4.0 μg/m3 (17) 35.0
 
Feb. 21, 2021, 7 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 37.0 ppb (35) N/A 6.7 μg/m3 (7) 3.7 μg/m3 (16) 35.0
 
Feb. 21, 2021, 6 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 39.0 ppb (37) N/A 6.7 μg/m3 (7) 3.6 μg/m3 (16) 37.0
 
Feb. 21, 2021, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A N/A 6.9 μg/m3 (7) 3.7 μg/m3 (16) 16.0
 
Feb. 21, 2021, 4 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 39.0 ppb (37) N/A 8.2 μg/m3 (8) 4.1 μg/m3 (18) 37.0
 
Feb. 21, 2021, 3 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) N/A 7.8 μg/m3 (8) 4.0 μg/m3 (17) 38.0
 
Feb. 21, 2021, 2 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 41.0 ppb (38) N/A 7.4 μg/m3 (7) 3.8 μg/m3 (16) 38.0
 
Feb. 21, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 6.7 μg/m3 (7) 3.6 μg/m3 (16) 38.0
 
Feb. 21, 2021, midnight N/A N/A N/A 1.0 ppb (1) N/A N/A 43.0 ppb (40) N/A 6.0 μg/m3 (6) 3.4 μg/m3 (15) 40.0
 
Feb. 20, 2021, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 43.0 ppb (40) N/A 8.7 μg/m3 (9) 4.3 μg/m3 (18) 40.0
 
Feb. 20, 2021, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 43.0 ppb (40) N/A 8.6 μg/m3 (8) 4.5 μg/m3 (19) 40.0
 
Feb. 20, 2021, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 44.0 ppb (41) N/A 9.2 μg/m3 (9) 4.5 μg/m3 (19) 41.0
 
Feb. 20, 2021, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 44.0 ppb (41) N/A 8.5 μg/m3 (8) 4.1 μg/m3 (18) 41.0
 
Feb. 20, 2021, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 44.0 ppb (41) N/A 8.3 μg/m3 (8) 3.7 μg/m3 (16) 41.0
 
Feb. 20, 2021, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 44.0 ppb (41) N/A 6.8 μg/m3 (7) 3.9 μg/m3 (17) 41.0
 
Feb. 20, 2021, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 44.0 ppb (41) N/A 7.7 μg/m3 (8) 3.7 μg/m3 (16) 41.0
 
Feb. 20, 2021, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 43.0 ppb (40) N/A 7.4 μg/m3 (7) 4.0 μg/m3 (17) 40.0
 
Feb. 20, 2021, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 41.0 ppb (38) N/A 9.0 μg/m3 (9) 4.1 μg/m3 (18) 38.0
 
Feb. 20, 2021, 2 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 39.0 ppb (37) N/A 6.8 μg/m3 (7) 4.4 μg/m3 (19) 37.0