ID: 909

AQSQID: 550270001

Site Name: Horicon Wildlife Area

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

Updated: Sept. 28, 2021, 8:01 p.m.

Location: Horicon (N Palmatory St), WI

Reporting: True, Located: True

Current AQI: 39.0

Horicon (N Palmatory St) WI, US: 43.46611, -88.621109

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 21, 2021, 2 p.m. N/A 0.0 ppb (0) 0.5 ppb (1) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.09 ppb (2) 9.0 μg/m3 (9) 3.5 μg/m3 (15) 23.0
 
Sept. 21, 2021, 1 p.m. N/A 0.0 ppb (0) 0.5 ppb (1) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.1 ppb (2) 10.0 μg/m3 (10) 4.2 μg/m3 (18) 23.0
 
Sept. 21, 2021, noon N/A 0.0 ppb (0) 0.6 ppb (1) N/A N/A 0.0 ppb (0) 21.0 ppb (20) 0.1 ppb (2) 14.0 μg/m3 (13) 6.1 μg/m3 (26) 26.0
 
Sept. 21, 2021, 11 a.m. N/A -0.1 ppb (0) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.1 ppb (2) 17.0 μg/m3 (16) 6.7 μg/m3 (28) 28.0
 
Sept. 21, 2021, 10 a.m. N/A 0.0 ppb (0) 0.5 ppb (1) N/A N/A 0.0 ppb (0) N/A N/A 15.0 μg/m3 (14) 6.0 μg/m3 (25) 25.0
 
Sept. 21, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 27.0 ppb (25) N/A 16.0 μg/m3 (15) 5.7 μg/m3 (24) 25.0
 
Sept. 21, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.1 ppb (2) 12.0 μg/m3 (12) 5.1 μg/m3 (22) 22.0
 
Sept. 21, 2021, 7 a.m. N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A N/A 24.0 ppb (23) 0.09 ppb (2) 11.0 μg/m3 (11) 4.2 μg/m3 (18) 23.0
 
Sept. 21, 2021, 6 a.m. N/A 0.0 ppb (0) 1.8 ppb (2) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.05 ppb (2) 6.0 μg/m3 (6) 2.9 μg/m3 (13) 33.0
 
Sept. 21, 2021, 5 a.m. N/A 0.0 ppb (0) 2.1 ppb (2) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.06 ppb (2) 6.0 μg/m3 (6) 2.8 μg/m3 (12) 36.0
 
Sept. 21, 2021, 4 a.m. N/A 0.0 ppb (0) 2.4 ppb (3) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.05 ppb (2) 8.0 μg/m3 (8) 3.2 μg/m3 (14) 38.0
 
Sept. 21, 2021, 3 a.m. N/A 0.0 ppb (0) 2.6 ppb (3) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.05 ppb (2) 11.0 μg/m3 (11) 4.8 μg/m3 (20) 38.0
 
Sept. 21, 2021, 2 a.m. N/A 0.0 ppb (0) 1.8 ppb (2) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.06 ppb (2) 12.0 μg/m3 (12) 6.6 μg/m3 (28) 29.0
 
Sept. 21, 2021, 1 a.m. N/A 0.0 ppb (0) 1.6 ppb (2) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.06 ppb (2) 13.0 μg/m3 (13) 6.7 μg/m3 (28) 32.0
 
Sept. 21, 2021, midnight N/A 0.0 ppb (0) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.05 ppb (2) 11.0 μg/m3 (11) 6.4 μg/m3 (27) 32.0
 
Sept. 20, 2021, 11 p.m. N/A 0.0 ppb (0) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.05 ppb (2) 12.0 μg/m3 (12) 6.3 μg/m3 (27) 34.0
 
Sept. 20, 2021, 10 p.m. N/A 0.1 ppb (1) 1.6 ppb (2) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.05 ppb (2) 12.0 μg/m3 (12) 6.9 μg/m3 (29) 35.0
 
Sept. 20, 2021, 9 p.m. N/A 0.1 ppb (1) 1.6 ppb (2) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.05 ppb (2) 10.0 μg/m3 (10) 6.2 μg/m3 (26) 34.0
 
Sept. 20, 2021, 8 p.m. N/A 0.1 ppb (1) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.06 ppb (2) 9.0 μg/m3 (9) 6.0 μg/m3 (25) 31.0
 
Sept. 20, 2021, 7 p.m. N/A 0.2 ppb (1) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.05 ppb (2) 8.0 μg/m3 (8) 4.6 μg/m3 (20) 28.0
 
Sept. 20, 2021, 6 p.m. N/A 0.2 ppb (1) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.05 ppb (2) 8.0 μg/m3 (8) 4.3 μg/m3 (18) 25.0
 
Sept. 20, 2021, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.05 ppb (2) 9.0 μg/m3 (9) 4.5 μg/m3 (19) 29.0
 
Sept. 20, 2021, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.05 ppb (2) 8.0 μg/m3 (8) 4.1 μg/m3 (18) 30.0
 
Sept. 20, 2021, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.04 ppb (0) 8.0 μg/m3 (8) 3.8 μg/m3 (16) 29.0
 
Sept. 20, 2021, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.05 ppb (2) 10.0 μg/m3 (10) 4.8 μg/m3 (20) 26.0
 
Sept. 20, 2021, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.07 ppb (2) 11.0 μg/m3 (11) 6.2 μg/m3 (26) 26.0
 
Sept. 20, 2021, noon N/A 0.0 ppb (0) 2.0 ppb (2) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.08 ppb (2) 11.0 μg/m3 (11) 7.5 μg/m3 (32) 32.0
 
Sept. 20, 2021, 11 a.m. N/A 0.0 ppb (0) 2.5 ppb (3) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.1 ppb (2) 14.0 μg/m3 (13) 9.4 μg/m3 (40) 40.0
 
Sept. 20, 2021, 10 a.m. N/A 0.0 ppb (0) 2.7 ppb (3) N/A N/A 1.0 ppb (2) N/A N/A 18.0 μg/m3 (17) 11.2 μg/m3 (47) 47.0
 
Sept. 20, 2021, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 36.0 ppb (34) N/A 19.0 μg/m3 (18) 11.8 μg/m3 (50) 50.0
 
Sept. 20, 2021, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 39.0 ppb (37) 0.13 ppb (2) 19.0 μg/m3 (18) 12.1 μg/m3 (51) 51.0
 
Sept. 20, 2021, 7 a.m. N/A 0.0 ppb (0) 2.9 ppb (3) N/A N/A N/A 42.0 ppb (39) 0.13 ppb (2) 19.0 μg/m3 (18) 12.0 μg/m3 (50) 50.0
 
Sept. 20, 2021, 6 a.m. N/A 0.0 ppb (0) 2.6 ppb (3) N/A N/A 1.0 ppb (2) 47.0 ppb (44) 0.13 ppb (2) 19.0 μg/m3 (18) 11.7 μg/m3 (49) 49.0
 
Sept. 20, 2021, 5 a.m. N/A 0.0 ppb (0) 2.2 ppb (3) N/A N/A 1.0 ppb (2) 50.0 ppb (47) 0.13 ppb (2) 18.0 μg/m3 (17) 11.5 μg/m3 (48) 48.0
 
Sept. 20, 2021, 4 a.m. N/A -0.1 ppb (0) 2.2 ppb (3) N/A N/A 1.0 ppb (2) 52.0 ppb (49) 0.13 ppb (2) 19.0 μg/m3 (18) 11.9 μg/m3 (50) 50.0
 
Sept. 20, 2021, 3 a.m. N/A -0.1 ppb (0) 2.7 ppb (3) N/A N/A 1.0 ppb (2) 54.0 ppb (50) 0.15 ppb (2) 20.0 μg/m3 (19) 12.1 μg/m3 (51) 51.0
 
Sept. 20, 2021, 2 a.m. N/A 0.0 ppb (0) 3.9 ppb (4) N/A N/A 1.0 ppb (2) 54.0 ppb (50) 0.16 ppb (3) 21.0 μg/m3 (20) 12.6 μg/m3 (53) 53.0
 
Sept. 20, 2021, 1 a.m. N/A -0.1 ppb (0) 4.7 ppb (5) N/A N/A 1.0 ppb (2) 54.0 ppb (50) 0.17 ppb (3) 23.0 μg/m3 (22) 12.4 μg/m3 (52) 52.0
 
Sept. 20, 2021, midnight N/A 0.0 ppb (0) 4.5 ppb (5) N/A N/A 1.0 ppb (2) 57.0 ppb (58) 0.17 ppb (3) 20.0 μg/m3 (19) 11.6 μg/m3 (49) 58.0
 
Sept. 19, 2021, 11 p.m. N/A 0.0 ppb (0) 4.0 ppb (4) N/A N/A 1.0 ppb (2) 62.0 ppb (74) 0.18 ppb (3) 21.0 μg/m3 (20) 11.9 μg/m3 (50) 74.0
 
Sept. 19, 2021, 10 p.m. N/A 0.1 ppb (1) 3.6 ppb (4) N/A N/A 1.0 ppb (2) 69.0 ppb (97) 0.17 ppb (3) 22.0 μg/m3 (21) 11.8 μg/m3 (50) 97.0
 
Sept. 19, 2021, 9 p.m. N/A 0.0 ppb (0) 1.9 ppb (2) N/A N/A 1.0 ppb (2) 65.0 ppb (84) 0.13 ppb (2) 20.0 μg/m3 (19) 10.8 μg/m3 (46) 84.0
 
Sept. 19, 2021, 8 p.m. N/A 0.0 ppb (0) 1.9 ppb (2) N/A N/A 1.0 ppb (2) 63.0 ppb (78) 0.12 ppb (2) 17.0 μg/m3 (16) 9.4 μg/m3 (40) 78.0
 
Sept. 19, 2021, 7 p.m. N/A 0.0 ppb (0) 2.1 ppb (2) N/A N/A 1.0 ppb (2) 64.0 ppb (81) 0.13 ppb (2) 20.0 μg/m3 (19) 11.7 μg/m3 (49) 81.0
 
Sept. 19, 2021, 6 p.m. N/A 0.0 ppb (0) 1.9 ppb (2) N/A N/A 1.0 ppb (2) 62.0 ppb (74) 0.12 ppb (2) 18.0 μg/m3 (17) 9.7 μg/m3 (41) 74.0
 
Sept. 19, 2021, 5 p.m. N/A 0.0 ppb (0) 2.0 ppb (2) N/A N/A 1.0 ppb (2) 61.0 ppb (71) 0.12 ppb (2) 19.0 μg/m3 (18) 9.4 μg/m3 (40) 71.0
 
Sept. 19, 2021, 4 p.m. N/A 0.1 ppb (1) 2.4 ppb (3) N/A N/A 1.0 ppb (2) 55.0 ppb (51) 0.13 ppb (2) 18.0 μg/m3 (17) 9.7 μg/m3 (41) 51.0
 
Sept. 19, 2021, 3 p.m. N/A 0.1 ppb (1) 2.5 ppb (3) N/A N/A 1.0 ppb (2) 46.0 ppb (43) 0.13 ppb (2) 17.0 μg/m3 (16) 8.7 μg/m3 (37) 43.0
 
Sept. 19, 2021, 2 p.m. N/A 0.2 ppb (1) 2.5 ppb (3) N/A N/A 1.0 ppb (2) 40.0 ppb (38) 0.13 ppb (2) 15.0 μg/m3 (14) 7.1 μg/m3 (30) 38.0
 
Sept. 19, 2021, 1 p.m. N/A 0.2 ppb (1) 2.5 ppb (3) N/A N/A 1.0 ppb (2) 34.0 ppb (32) 0.12 ppb (2) 12.0 μg/m3 (12) 6.1 μg/m3 (26) 32.0
 
Sept. 19, 2021, noon N/A 0.0 ppb (0) 1.9 ppb (2) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.11 ppb (2) 12.0 μg/m3 (12) 5.3 μg/m3 (23) 30.0
 
Sept. 19, 2021, 11 a.m. N/A 0.0 ppb (0) 1.6 ppb (2) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.1 ppb (2) 10.0 μg/m3 (10) 4.5 μg/m3 (19) 24.0
 
Sept. 19, 2021, 10 a.m. N/A 0.0 ppb (0) 1.4 ppb (2) N/A N/A 0.0 ppb (0) N/A 0.11 ppb (2) 10.0 μg/m3 (10) 4.1 μg/m3 (18) 18.0
 
Sept. 19, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (21) N/A 9.0 μg/m3 (9) 4.2 μg/m3 (18) 21.0
 
Sept. 19, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.1 ppb (2) 10.0 μg/m3 (10) 4.0 μg/m3 (17) 24.0
 
Sept. 19, 2021, 7 a.m. N/A 0.0 ppb (0) 1.3 ppb (2) N/A N/A N/A 27.0 ppb (25) 0.1 ppb (2) 9.0 μg/m3 (9) 4.1 μg/m3 (18) 25.0
 
Sept. 19, 2021, 6 a.m. N/A 0.0 ppb (0) 1.1 ppb (2) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.11 ppb (2) 10.0 μg/m3 (10) 4.2 μg/m3 (18) 27.0
 
Sept. 19, 2021, 5 a.m. N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.1 ppb (2) 10.0 μg/m3 (10) 3.6 μg/m3 (16) 27.0
 
Sept. 19, 2021, 4 a.m. N/A 0.0 ppb (0) 0.8 ppb (1) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.1 ppb (2) 11.0 μg/m3 (11) 3.4 μg/m3 (15) 29.0
 
Sept. 19, 2021, 3 a.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.1 ppb (2) 10.0 μg/m3 (10) 3.3 μg/m3 (14) 27.0
 
Sept. 19, 2021, 2 a.m. N/A 0.0 ppb (0) 1.2 ppb (2) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.1 ppb (2) 10.0 μg/m3 (10) 3.5 μg/m3 (15) 27.0
 
Sept. 19, 2021, 1 a.m. N/A 0.0 ppb (0) 1.8 ppb (2) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.1 ppb (2) 13.0 μg/m3 (13) 3.8 μg/m3 (16) 27.0
 
Sept. 19, 2021, midnight N/A 0.0 ppb (0) 2.1 ppb (2) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.1 ppb (2) 12.0 μg/m3 (12) 3.7 μg/m3 (16) 29.0
 
Sept. 18, 2021, 11 p.m. N/A 0.0 ppb (0) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.1 ppb (2) 13.0 μg/m3 (13) 3.4 μg/m3 (15) 33.0
 
Sept. 18, 2021, 10 p.m. N/A 0.0 ppb (0) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.1 ppb (2) 13.0 μg/m3 (13) 3.4 μg/m3 (15) 37.0
 
Sept. 18, 2021, 9 p.m. N/A 0.0 ppb (0) 1.1 ppb (2) N/A N/A 0.0 ppb (0) 41.0 ppb (38) 0.09 ppb (2) 14.0 μg/m3 (13) 3.4 μg/m3 (15) 38.0
 
Sept. 18, 2021, 8 p.m. N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.09 ppb (2) 13.0 μg/m3 (13) 3.4 μg/m3 (15) 39.0
 
Sept. 18, 2021, 7 p.m. N/A 0.1 ppb (1) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.09 ppb (2) 13.0 μg/m3 (13) 3.5 μg/m3 (15) 39.0
 
Sept. 18, 2021, 6 p.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 41.0 ppb (38) 0.09 ppb (2) 12.0 μg/m3 (12) 3.5 μg/m3 (15) 38.0
 
Sept. 18, 2021, 5 p.m. N/A 0.1 ppb (1) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.09 ppb (2) 14.0 μg/m3 (13) 3.4 μg/m3 (15) 37.0
 
Sept. 18, 2021, 4 p.m. N/A 0.1 ppb (1) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.09 ppb (2) 13.0 μg/m3 (13) 3.5 μg/m3 (15) 35.0
 
Sept. 18, 2021, 3 p.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.09 ppb (2) 15.0 μg/m3 (14) 3.6 μg/m3 (16) 33.0
 
Sept. 18, 2021, 2 p.m. N/A 0.2 ppb (1) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.09 ppb (2) 12.0 μg/m3 (12) 3.8 μg/m3 (16) 28.0
 
Sept. 18, 2021, 1 p.m. N/A 0.4 ppb (1) 2.3 ppb (3) N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.1 ppb (2) 11.0 μg/m3 (11) 4.4 μg/m3 (19) 22.0
 
Sept. 18, 2021, noon N/A 0.3 ppb (1) 3.5 ppb (4) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.1 ppb (2) 12.0 μg/m3 (12) 5.0 μg/m3 (21) 21.0
 
Sept. 18, 2021, 11 a.m. N/A 0.0 ppb (0) 3.2 ppb (4) N/A N/A 0.0 ppb (0) 17.0 ppb (16) 0.1 ppb (2) 12.0 μg/m3 (12) 5.0 μg/m3 (21) 21.0
 
Sept. 18, 2021, 10 a.m. N/A 0.0 ppb (0) 1.9 ppb (2) N/A N/A 0.0 ppb (0) N/A N/A 13.0 μg/m3 (13) 4.9 μg/m3 (21) 21.0
 
Sept. 18, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (19) N/A 15.0 μg/m3 (14) 5.0 μg/m3 (21) 21.0
 
Sept. 18, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 19.0 ppb (18) 0.09 ppb (2) 16.0 μg/m3 (15) 5.3 μg/m3 (23) 23.0
 
Sept. 18, 2021, 7 a.m. N/A 0.0 ppb (0) 1.6 ppb (2) N/A N/A N/A 18.0 ppb (17) 0.09 ppb (2) 15.0 μg/m3 (14) 5.1 μg/m3 (22) 22.0
 
Sept. 18, 2021, 6 a.m. N/A 0.0 ppb (0) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.1 ppb (2) 15.0 μg/m3 (14) 4.7 μg/m3 (20) 23.0
 
Sept. 18, 2021, 5 a.m. N/A 0.0 ppb (0) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.09 ppb (2) 14.0 μg/m3 (13) 4.6 μg/m3 (20) 26.0
 
Sept. 18, 2021, 4 a.m. N/A 0.0 ppb (0) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.09 ppb (2) 12.0 μg/m3 (12) 4.6 μg/m3 (20) 27.0
 
Sept. 18, 2021, 3 a.m. N/A 0.0 ppb (0) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.09 ppb (2) 13.0 μg/m3 (13) 5.3 μg/m3 (23) 27.0
 
Sept. 18, 2021, 2 a.m. N/A 0.0 ppb (0) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.09 ppb (2) 15.0 μg/m3 (14) 5.4 μg/m3 (23) 26.0
 
Sept. 18, 2021, 1 a.m. N/A 0.0 ppb (0) 1.6 ppb (2) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.09 ppb (2) 16.0 μg/m3 (15) 5.5 μg/m3 (23) 29.0
 
Sept. 18, 2021, midnight N/A 0.0 ppb (0) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.09 ppb (2) 14.0 μg/m3 (13) 5.2 μg/m3 (22) 33.0
 
Sept. 17, 2021, 11 p.m. N/A 0.0 ppb (0) 1.1 ppb (2) N/A N/A 0.0 ppb (0) 41.0 ppb (38) 0.09 ppb (2) 15.0 μg/m3 (14) 5.6 μg/m3 (24) 38.0
 
Sept. 17, 2021, 10 p.m. N/A 0.0 ppb (0) 1.2 ppb (2) N/A N/A 0.0 ppb (0) 45.0 ppb (42) 0.09 ppb (2) 16.0 μg/m3 (15) 5.8 μg/m3 (25) 42.0
 
Sept. 17, 2021, 9 p.m. N/A 0.0 ppb (0) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 51.0 ppb (48) 0.1 ppb (2) 17.0 μg/m3 (16) 6.4 μg/m3 (27) 48.0
 
Sept. 17, 2021, 8 p.m. N/A 0.1 ppb (1) 2.2 ppb (3) N/A N/A 0.0 ppb (0) 54.0 ppb (50) 0.11 ppb (2) 19.0 μg/m3 (18) 6.7 μg/m3 (28) 50.0
 
Sept. 17, 2021, 7 p.m. N/A 0.1 ppb (1) 2.8 ppb (3) N/A N/A 1.0 ppb (2) 52.0 ppb (49) 0.14 ppb (2) 20.0 μg/m3 (19) 7.1 μg/m3 (30) 49.0
 
Sept. 17, 2021, 6 p.m. N/A 0.1 ppb (1) 2.6 ppb (3) N/A N/A 1.0 ppb (2) 55.0 ppb (51) 0.12 ppb (2) 21.0 μg/m3 (20) 8.4 μg/m3 (36) 51.0
 
Sept. 17, 2021, 5 p.m. N/A 0.1 ppb (1) 2.7 ppb (3) N/A N/A 1.0 ppb (2) 54.0 ppb (50) 0.12 ppb (2) 20.0 μg/m3 (19) 9.1 μg/m3 (38) 50.0
 
Sept. 17, 2021, 4 p.m. N/A 0.1 ppb (1) 2.8 ppb (3) N/A N/A 1.0 ppb (2) 51.0 ppb (48) 0.14 ppb (2) 17.0 μg/m3 (16) 7.7 μg/m3 (33) 48.0
 
Sept. 17, 2021, 3 p.m. N/A 0.3 ppb (1) 3.4 ppb (4) N/A N/A 1.0 ppb (2) 47.0 ppb (44) 0.14 ppb (2) 15.0 μg/m3 (14) 6.9 μg/m3 (29) 44.0
 
Sept. 17, 2021, 2 p.m. N/A 0.6 ppb (1) 4.4 ppb (5) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.11 ppb (2) 14.0 μg/m3 (13) 6.4 μg/m3 (27) 38.0
 
Sept. 17, 2021, 1 p.m. N/A 0.6 ppb (1) 5.2 ppb (5) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.12 ppb (2) 15.0 μg/m3 (14) 6.7 μg/m3 (28) 33.0
 
Sept. 17, 2021, noon N/A 0.3 ppb (1) 5.0 ppb (5) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.13 ppb (2) 14.0 μg/m3 (13) 8.1 μg/m3 (34) 34.0
 
Sept. 17, 2021, 11 a.m. N/A 0.0 ppb (0) 4.9 ppb (5) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.14 ppb (2) 15.0 μg/m3 (14) 8.7 μg/m3 (37) 37.0
 
Sept. 17, 2021, 10 a.m. N/A 0.0 ppb (0) 4.7 ppb (5) N/A N/A 0.0 ppb (0) N/A N/A 15.0 μg/m3 (14) 8.2 μg/m3 (35) 35.0
 
Sept. 17, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (31) N/A 15.0 μg/m3 (14) 8.4 μg/m3 (36) 36.0
 
Sept. 17, 2021, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 36.0 ppb (34) 0.17 ppb (3) 16.0 μg/m3 (15) 8.7 μg/m3 (37) 37.0
 
Sept. 17, 2021, 7 a.m. N/A 0.0 ppb (0) 6.2 ppb (6) N/A N/A N/A 37.0 ppb (35) 0.17 ppb (3) 16.0 μg/m3 (15) 8.9 μg/m3 (38) 38.0
 
Sept. 17, 2021, 6 a.m. N/A 0.0 ppb (0) 6.0 ppb (6) N/A N/A 1.0 ppb (2) 40.0 ppb (38) 0.16 ppb (3) 17.0 μg/m3 (16) 9.1 μg/m3 (38) 38.0
 
Sept. 17, 2021, 5 a.m. N/A 0.0 ppb (0) 4.4 ppb (5) N/A N/A 0.0 ppb (0) 46.0 ppb (43) 0.15 ppb (2) 17.0 μg/m3 (16) 8.4 μg/m3 (36) 43.0
 
Sept. 17, 2021, 4 a.m. N/A 0.0 ppb (0) 3.8 ppb (4) N/A N/A 1.0 ppb (2) 51.0 ppb (48) 0.15 ppb (2) 16.0 μg/m3 (15) 7.6 μg/m3 (32) 48.0
 
Sept. 17, 2021, 3 a.m. N/A 0.0 ppb (0) 3.6 ppb (4) N/A N/A 1.0 ppb (2) 53.0 ppb (50) 0.15 ppb (2) 18.0 μg/m3 (17) 7.4 μg/m3 (31) 50.0
 
Sept. 17, 2021, 2 a.m. N/A -0.1 ppb (0) 3.5 ppb (4) N/A N/A 1.0 ppb (2) 52.0 ppb (49) 0.14 ppb (2) 20.0 μg/m3 (19) 7.2 μg/m3 (31) 49.0
 
Sept. 17, 2021, 1 a.m. N/A 0.0 ppb (0) 3.2 ppb (4) N/A N/A 0.0 ppb (0) 55.0 ppb (51) 0.13 ppb (2) 18.0 μg/m3 (17) 7.1 μg/m3 (30) 51.0
 
Sept. 17, 2021, midnight N/A 0.0 ppb (0) 3.3 ppb (4) N/A N/A 0.0 ppb (0) 59.0 ppb (65) 0.11 ppb (2) 21.0 μg/m3 (20) 6.8 μg/m3 (29) 65.0
 
Sept. 16, 2021, 11 p.m. N/A 0.0 ppb (0) 2.7 ppb (3) N/A N/A 0.0 ppb (0) 62.0 ppb (74) 0.11 ppb (2) 17.0 μg/m3 (16) 6.4 μg/m3 (27) 74.0
 
Sept. 16, 2021, 10 p.m. N/A 0.0 ppb (0) 2.5 ppb (3) N/A N/A 0.0 ppb (0) 62.0 ppb (74) 0.1 ppb (2) 17.0 μg/m3 (16) 6.2 μg/m3 (26) 74.0
 
Sept. 16, 2021, 9 p.m. N/A 0.0 ppb (0) 2.4 ppb (3) N/A N/A 0.0 ppb (0) 63.0 ppb (78) 0.1 ppb (2) 19.0 μg/m3 (18) 6.3 μg/m3 (27) 78.0
 
Sept. 16, 2021, 8 p.m. N/A 0.0 ppb (0) 2.3 ppb (3) N/A N/A 0.0 ppb (0) 61.0 ppb (71) 0.1 ppb (2) 17.0 μg/m3 (16) 6.0 μg/m3 (25) 71.0
 
Sept. 16, 2021, 7 p.m. N/A 0.0 ppb (0) 2.4 ppb (3) N/A N/A 0.0 ppb (0) 59.0 ppb (65) 0.1 ppb (2) 18.0 μg/m3 (17) 5.8 μg/m3 (25) 65.0
 
Sept. 16, 2021, 6 p.m. N/A 0.1 ppb (1) 2.7 ppb (3) N/A N/A 0.0 ppb (0) 59.0 ppb (65) 0.11 ppb (2) 21.0 μg/m3 (20) 6.1 μg/m3 (26) 65.0
 
Sept. 16, 2021, 5 p.m. N/A 0.2 ppb (1) 3.0 ppb (3) N/A N/A 1.0 ppb (2) 52.0 ppb (49) 0.12 ppb (2) 19.0 μg/m3 (18) 5.8 μg/m3 (25) 49.0
 
Sept. 16, 2021, 4 p.m. N/A 0.4 ppb (1) 3.2 ppb (4) N/A N/A 1.0 ppb (2) 45.0 ppb (42) 0.13 ppb (2) 14.0 μg/m3 (13) 5.2 μg/m3 (22) 42.0
 
Sept. 16, 2021, 3 p.m. N/A 0.2 ppb (1) 1.9 ppb (2) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.1 ppb (2) 14.0 μg/m3 (13) 4.6 μg/m3 (20) 37.0
 
Sept. 16, 2021, 2 p.m. N/A 0.4 ppb (1) 2.1 ppb (2) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.1 ppb (2) 9.0 μg/m3 (9) 4.0 μg/m3 (17) 28.0
 
Sept. 16, 2021, 1 p.m. N/A 0.6 ppb (1) 2.8 ppb (3) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.09 ppb (2) 8.0 μg/m3 (8) 4.3 μg/m3 (18) 24.0
 
Sept. 16, 2021, noon N/A 0.3 ppb (1) 3.5 ppb (4) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.1 ppb (2) 9.0 μg/m3 (9) 4.7 μg/m3 (20) 25.0
 
Sept. 16, 2021, 11 a.m. N/A 0.0 ppb (0) 5.3 ppb (5) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.1 ppb (2) 10.0 μg/m3 (10) 5.0 μg/m3 (21) 24.0
 
Sept. 16, 2021, 10 a.m. N/A 0.0 ppb (0) 2.8 ppb (3) N/A N/A 0.0 ppb (0) N/A N/A 9.0 μg/m3 (9) 5.0 μg/m3 (21) 21.0
 
Sept. 16, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (25) N/A 11.0 μg/m3 (11) 5.7 μg/m3 (24) 25.0
 
Sept. 16, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.11 ppb (2) 11.0 μg/m3 (11) 5.9 μg/m3 (25) 25.0
 
Sept. 16, 2021, 7 a.m. N/A 0.0 ppb (0) 2.2 ppb (3) N/A N/A N/A 25.0 ppb (24) 0.11 ppb (2) 10.0 μg/m3 (10) 6.0 μg/m3 (25) 25.0
 
Sept. 16, 2021, 6 a.m. N/A 0.0 ppb (0) 2.1 ppb (2) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.1 ppb (2) 10.0 μg/m3 (10) 6.1 μg/m3 (26) 26.0
 
Sept. 16, 2021, 5 a.m. N/A 0.0 ppb (0) 2.2 ppb (3) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.11 ppb (2) 10.0 μg/m3 (10) 6.3 μg/m3 (27) 27.0
 
Sept. 16, 2021, 4 a.m. N/A 0.0 ppb (0) 2.7 ppb (3) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.11 ppb (2) 11.0 μg/m3 (11) 6.3 μg/m3 (27) 27.0
 
Sept. 16, 2021, 3 a.m. N/A 0.0 ppb (0) 2.7 ppb (3) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.12 ppb (2) 12.0 μg/m3 (12) 6.2 μg/m3 (26) 27.0
 
Sept. 16, 2021, 2 a.m. N/A 0.0 ppb (0) 3.4 ppb (4) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.13 ppb (2) 14.0 μg/m3 (13) 6.7 μg/m3 (28) 28.0
 
Sept. 16, 2021, 1 a.m. N/A 0.0 ppb (0) 2.7 ppb (3) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.12 ppb (2) 12.0 μg/m3 (12) 5.4 μg/m3 (23) 27.0
 
Sept. 16, 2021, midnight N/A 0.0 ppb (0) 1.6 ppb (2) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.09 ppb (2) 9.0 μg/m3 (9) 4.0 μg/m3 (17) 31.0
 
Sept. 15, 2021, 11 p.m. N/A 0.0 ppb (0) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.09 ppb (2) 8.0 μg/m3 (8) 3.6 μg/m3 (16) 34.0
 
Sept. 15, 2021, 10 p.m. N/A 0.0 ppb (0) 0.5 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.09 ppb (2) 9.0 μg/m3 (9) 3.6 μg/m3 (16) 36.0
 
Sept. 15, 2021, 9 p.m. N/A 0.0 ppb (0) 0.5 ppb (1) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.09 ppb (2) 8.0 μg/m3 (8) 3.5 μg/m3 (15) 37.0
 
Sept. 15, 2021, 8 p.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.08 ppb (2) 10.0 μg/m3 (10) 3.9 μg/m3 (17) 36.0
 
Sept. 15, 2021, 7 p.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.08 ppb (2) 10.0 μg/m3 (10) 3.7 μg/m3 (16) 36.0
 
Sept. 15, 2021, 6 p.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.09 ppb (2) 9.0 μg/m3 (9) 3.9 μg/m3 (17) 36.0
 
Sept. 15, 2021, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.08 ppb (2) 10.0 μg/m3 (10) 4.5 μg/m3 (19) 34.0
 
Sept. 15, 2021, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.09 ppb (2) 11.0 μg/m3 (11) 5.1 μg/m3 (22) 32.0
 
Sept. 15, 2021, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.1 ppb (2) 14.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
Sept. 15, 2021, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.11 ppb (2) 16.0 μg/m3 (15) 6.8 μg/m3 (29) 29.0
 
Sept. 15, 2021, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 18.0 ppb (17) 0.11 ppb (2) 15.0 μg/m3 (14) 7.2 μg/m3 (31) 31.0
 
Sept. 15, 2021, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 8.0 ppb (8) 0.13 ppb (2) 11.0 μg/m3 (11) 5.9 μg/m3 (25) 25.0
 
Sept. 15, 2021, 11 a.m. N/A 0.0 ppb (0) 5.8 ppb (6) N/A N/A 0.0 ppb (0) 12.0 ppb (12) 0.12 ppb (2) 11.0 μg/m3 (11) 6.5 μg/m3 (28) 28.0
 
Sept. 15, 2021, 10 a.m. N/A 0.0 ppb (0) 4.5 ppb (5) N/A N/A 0.0 ppb (0) N/A N/A 14.0 μg/m3 (13) 6.7 μg/m3 (28) 28.0
 
Sept. 15, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (19) N/A 14.0 μg/m3 (13) 7.0 μg/m3 (30) 30.0
 
Sept. 15, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 19.0 ppb (18) 0.1 ppb (2) 13.0 μg/m3 (13) 6.4 μg/m3 (27) 27.0
 
Sept. 15, 2021, 7 a.m. N/A 0.0 ppb (0) 3.2 ppb (4) N/A N/A N/A 18.0 ppb (17) 0.1 ppb (2) 13.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
Sept. 15, 2021, 6 a.m. N/A 0.0 ppb (0) 3.5 ppb (4) N/A N/A 0.0 ppb (0) 18.0 ppb (17) 0.1 ppb (2) 12.0 μg/m3 (12) 5.4 μg/m3 (23) 23.0
 
Sept. 15, 2021, 5 a.m. N/A 0.0 ppb (0) 2.3 ppb (3) N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.1 ppb (2) 12.0 μg/m3 (12) 4.9 μg/m3 (21) 21.0
 
Sept. 15, 2021, 4 a.m. N/A 0.0 ppb (0) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.1 ppb (2) 11.0 μg/m3 (11) 4.5 μg/m3 (19) 21.0
 
Sept. 15, 2021, 3 a.m. N/A 0.0 ppb (0) 1.6 ppb (2) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.11 ppb (2) 11.0 μg/m3 (11) 4.0 μg/m3 (17) 23.0
 
Sept. 15, 2021, 2 a.m. N/A 0.0 ppb (0) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.12 ppb (2) 9.0 μg/m3 (9) 3.7 μg/m3 (16) 24.0
 
Sept. 15, 2021, 1 a.m. N/A 0.0 ppb (0) 1.8 ppb (2) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.12 ppb (2) 7.0 μg/m3 (7) 3.2 μg/m3 (14) 25.0
 
Sept. 15, 2021, midnight N/A 0.0 ppb (0) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.11 ppb (2) 6.0 μg/m3 (6) 2.6 μg/m3 (11) 27.0
 
Sept. 14, 2021, 11 p.m. N/A 0.0 ppb (0) 1.1 ppb (2) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.11 ppb (2) 6.0 μg/m3 (6) 2.2 μg/m3 (10) 31.0
 
Sept. 14, 2021, 10 p.m. N/A 0.0 ppb (0) 0.8 ppb (1) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.11 ppb (2) 4.0 μg/m3 (4) 2.1 μg/m3 (9) 33.0
 
Sept. 14, 2021, 9 p.m. N/A 0.1 ppb (1) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.12 ppb (2) 7.0 μg/m3 (7) 2.4 μg/m3 (10) 34.0
 
Sept. 14, 2021, 8 p.m. N/A 0.0 ppb (0) 1.2 ppb (2) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.11 ppb (2) 6.0 μg/m3 (6) 2.4 μg/m3 (10) 31.0
 
Sept. 14, 2021, 7 p.m. N/A 0.1 ppb (1) 1.1 ppb (2) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.1 ppb (2) 6.0 μg/m3 (6) 2.3 μg/m3 (10) 33.0
 
Sept. 14, 2021, 6 p.m. N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.1 ppb (2) 9.0 μg/m3 (9) 2.9 μg/m3 (13) 34.0
 
Sept. 14, 2021, 5 p.m. N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.1 ppb (2) 10.0 μg/m3 (10) 2.8 μg/m3 (12) 36.0
 
Sept. 14, 2021, 4 p.m. N/A 0.1 ppb (1) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.11 ppb (2) 14.0 μg/m3 (13) 4.8 μg/m3 (20) 35.0
 
Sept. 14, 2021, 3 p.m. N/A 0.4 ppb (1) 2.6 ppb (3) N/A N/A 0.0 ppb (0) 39.0 ppb (37) N/A N/A N/A 37.0