ID: 909

AQSQID: 550270001

Site Name: Horicon Wildlife Area

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

Updated: May 25, 2022, 10:49 p.m.

Location: Horicon (N Palmatory St), WI

Reporting: True, Located: True

Current AQI: 36.0

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
May 25, 2022, 9 p.m. N/A 0.6 ppb (1) 8.6 ppb (9) N/A N/A 0.0 ppb (0) 18.0 ppb (17) 0.22 ppb (3) 12.0 μg/m3 (12) 8.4 μg/m3 (36) 36.0
 
May 25, 2022, 8 p.m. N/A 0.7 ppb (1) 7.6 ppb (8) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.2 ppb (3) 12.0 μg/m3 (12) 8.5 μg/m3 (36) 36.0
 
May 25, 2022, 8 p.m. N/A 0.7 ppb (1) 7.6 ppb (8) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.2 ppb (3) 12.0 μg/m3 (12) 8.5 μg/m3 (36) 36.0
 
May 25, 2022, 7 p.m. N/A 0.8 ppb (1) 6.3 ppb (6) N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.2 ppb (3) 12.0 μg/m3 (12) 9.0 μg/m3 (38) 38.0
 
May 25, 2022, 7 p.m. N/A 0.8 ppb (1) 6.3 ppb (6) N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.2 ppb (3) 12.0 μg/m3 (12) 9.0 μg/m3 (38) 38.0
 
May 25, 2022, 6 p.m. N/A 0.9 ppb (1) 5.5 ppb (6) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.18 ppb (3) 10.0 μg/m3 (10) 7.0 μg/m3 (30) 30.0
 
May 25, 2022, 6 p.m. N/A 0.9 ppb (1) 5.5 ppb (6) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.18 ppb (3) 10.0 μg/m3 (10) 7.0 μg/m3 (30) 30.0
 
May 25, 2022, 5 p.m. N/A 0.6 ppb (1) 5.0 ppb (5) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.18 ppb (3) 6.0 μg/m3 (6) 4.2 μg/m3 (18) 23.0
 
May 25, 2022, 5 p.m. N/A 0.6 ppb (1) 5.0 ppb (5) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.18 ppb (3) 6.0 μg/m3 (6) 4.2 μg/m3 (18) 23.0
 
May 25, 2022, 4 p.m. N/A 0.6 ppb (1) 4.5 ppb (5) N/A N/A 1.0 ppb (2) 25.0 ppb (24) 0.18 ppb (3) 13.0 μg/m3 (13) 7.3 μg/m3 (31) 31.0
 
May 25, 2022, 3 p.m. N/A 0.4 ppb (1) 4.7 ppb (5) N/A N/A 1.0 ppb (2) 27.0 ppb (25) 0.18 ppb (3) 13.0 μg/m3 (13) 7.3 μg/m3 (31) 31.0
 
May 25, 2022, 3 p.m. N/A 0.4 ppb (1) 4.7 ppb (5) N/A N/A 1.0 ppb (2) 27.0 ppb (25) 0.18 ppb (3) 13.0 μg/m3 (13) 7.3 μg/m3 (31) 31.0
 
May 25, 2022, 1 p.m. N/A 0.1 ppb (1) 3.8 ppb (4) N/A N/A 1.0 ppb (2) 32.0 ppb (30) 0.15 ppb (2) 15.0 μg/m3 (14) 6.6 μg/m3 (28) 30.0
 
May 25, 2022, 9 a.m. N/A 0.0 ppb (0) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.13 ppb (2) 13.0 μg/m3 (13) 5.7 μg/m3 (24) 34.0
 
May 25, 2022, 5 a.m. N/A 0.0 ppb (0) 1.2 ppb (2) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.13 ppb (2) 9.0 μg/m3 (9) 3.6 μg/m3 (16) 38.0
 
May 25, 2022, 4 a.m. N/A 0.0 ppb (0) 1.2 ppb (2) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.13 ppb (2) 8.0 μg/m3 (8) 3.5 μg/m3 (15) 38.0
 
May 25, 2022, 1 a.m. N/A 0.0 ppb (0) 2.3 ppb (3) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.14 ppb (2) 10.0 μg/m3 (10) 3.8 μg/m3 (16) 37.0
 
May 25, 2022, midnight N/A 0.0 ppb (0) 2.1 ppb (2) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.14 ppb (2) 8.0 μg/m3 (8) 3.6 μg/m3 (16) 38.0
 
May 24, 2022, 9 p.m. N/A 0.1 ppb (1) 2.5 ppb (3) N/A N/A 1.0 ppb (2) 45.0 ppb (42) 0.15 ppb (2) 11.0 μg/m3 (11) 4.6 μg/m3 (20) 42.0
 
May 24, 2022, 8 p.m. N/A 0.1 ppb (1) 2.9 ppb (3) N/A N/A 1.0 ppb (2) 46.0 ppb (43) 0.16 ppb (3) 13.0 μg/m3 (13) 5.3 μg/m3 (23) 43.0
 
May 24, 2022, 7 p.m. N/A 0.1 ppb (1) 2.9 ppb (3) N/A N/A 1.0 ppb (2) 46.0 ppb (43) 0.16 ppb (3) 15.0 μg/m3 (14) 5.6 μg/m3 (24) 43.0
 
May 24, 2022, 6 p.m. N/A 0.2 ppb (1) 2.8 ppb (3) N/A N/A 1.0 ppb (2) 45.0 ppb (42) 0.16 ppb (3) 13.0 μg/m3 (13) 5.9 μg/m3 (25) 42.0
 
May 24, 2022, 5 p.m. N/A 0.3 ppb (1) 3.2 ppb (4) N/A N/A 1.0 ppb (2) 43.0 ppb (40) 0.14 ppb (2) 14.0 μg/m3 (13) 6.5 μg/m3 (28) 40.0
 
May 24, 2022, 4 p.m. N/A 0.3 ppb (1) 3.1 ppb (3) N/A N/A 1.0 ppb (2) 40.0 ppb (38) N/A 14.0 μg/m3 (13) 6.2 μg/m3 (26) 38.0
 
May 24, 2022, 3 p.m. N/A 0.5 ppb (1) 3.6 ppb (4) N/A N/A 0.0 ppb (0) 35.0 ppb (33) N/A 14.0 μg/m3 (13) 6.2 μg/m3 (26) 33.0
 
May 24, 2022, 2 p.m. N/A 0.7 ppb (1) 4.4 ppb (5) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.14 ppb (2) 14.0 μg/m3 (13) 5.9 μg/m3 (25) 29.0
 
May 24, 2022, 1 p.m. N/A 0.5 ppb (1) 3.3 ppb (4) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.14 ppb (2) 10.0 μg/m3 (10) 4.2 μg/m3 (18) 27.0
 
May 24, 2022, noon N/A 0.4 ppb (1) 3.3 ppb (4) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.14 ppb (2) 7.0 μg/m3 (7) 3.6 μg/m3 (16) 25.0
 
May 24, 2022, 10 a.m. N/A 0.0 ppb (0) 3.3 ppb (4) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.13 ppb (2) 8.0 μg/m3 (8) 4.8 μg/m3 (20) 23.0
 
May 24, 2022, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 19.0 ppb (18) 0.12 ppb (2) 8.0 μg/m3 (8) 5.2 μg/m3 (22) 22.0
 
May 24, 2022, 8 a.m. N/A 0.0 ppb (0) 1.8 ppb (2) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.12 ppb (2) 6.0 μg/m3 (6) 3.3 μg/m3 (14) 30.0
 
May 24, 2022, 6 a.m. N/A 0.0 ppb (0) 2.7 ppb (3) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.14 ppb (2) 10.0 μg/m3 (10) 5.2 μg/m3 (22) 25.0
 
May 24, 2022, 5 a.m. N/A 0.0 ppb (0) 2.6 ppb (3) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.14 ppb (2) 8.0 μg/m3 (8) 4.2 μg/m3 (18) 25.0
 
May 24, 2022, 5 a.m. N/A 0.0 ppb (0) 2.6 ppb (3) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.14 ppb (2) 8.0 μg/m3 (8) 4.2 μg/m3 (18) 25.0
 
May 24, 2022, 4 a.m. N/A 0.0 ppb (0) 2.4 ppb (3) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.14 ppb (2) 7.0 μg/m3 (7) 3.2 μg/m3 (14) 24.0
 
May 24, 2022, 4 a.m. N/A 0.0 ppb (0) 2.4 ppb (3) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.14 ppb (2) 7.0 μg/m3 (7) 3.2 μg/m3 (14) 24.0
 
May 24, 2022, 3 a.m. N/A 0.0 ppb (0) 2.3 ppb (3) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.13 ppb (2) 7.0 μg/m3 (7) 2.8 μg/m3 (12) 27.0
 
May 24, 2022, 3 a.m. N/A 0.0 ppb (0) 2.3 ppb (3) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.13 ppb (2) 7.0 μg/m3 (7) 2.8 μg/m3 (12) 27.0
 
May 24, 2022, 2 a.m. N/A 0.0 ppb (0) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.13 ppb (2) 7.0 μg/m3 (7) 2.7 μg/m3 (12) 32.0
 
May 24, 2022, 2 a.m. N/A 0.0 ppb (0) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.13 ppb (2) 7.0 μg/m3 (7) 2.7 μg/m3 (12) 32.0
 
May 24, 2022, 1 a.m. N/A 0.0 ppb (0) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.13 ppb (2) 7.0 μg/m3 (7) 2.5 μg/m3 (11) 34.0
 
May 24, 2022, 1 a.m. N/A 0.0 ppb (0) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.13 ppb (2) 7.0 μg/m3 (7) 2.5 μg/m3 (11) 34.0
 
May 24, 2022, midnight N/A 0.0 ppb (0) 1.8 ppb (2) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.13 ppb (2) 8.0 μg/m3 (8) 2.4 μg/m3 (10) 35.0
 
May 24, 2022, midnight N/A 0.0 ppb (0) 1.8 ppb (2) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.13 ppb (2) 8.0 μg/m3 (8) 2.4 μg/m3 (10) 35.0
 
May 23, 2022, 11 p.m. N/A 0.0 ppb (0) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.14 ppb (2) 8.0 μg/m3 (8) 2.7 μg/m3 (12) 37.0
 
May 23, 2022, 11 p.m. N/A 0.0 ppb (0) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.14 ppb (2) 8.0 μg/m3 (8) 2.7 μg/m3 (12) 37.0
 
May 23, 2022, 8 p.m. N/A 0.1 ppb (1) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.14 ppb (2) 10.0 μg/m3 (10) 4.8 μg/m3 (20) 41.0
 
May 23, 2022, 7 p.m. N/A 0.1 ppb (1) 1.6 ppb (2) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.13 ppb (2) 8.0 μg/m3 (8) 4.5 μg/m3 (19) 40.0
 
May 23, 2022, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.13 ppb (2) 8.0 μg/m3 (8) 4.6 μg/m3 (20) 41.0
 
May 23, 2022, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (38) 0.13 ppb (2) 7.0 μg/m3 (7) 4.3 μg/m3 (18) 38.0
 
May 23, 2022, 2 p.m. N/A 0.7 ppb (1) 5.6 ppb (6) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.14 ppb (2) 8.0 μg/m3 (8) 4.5 μg/m3 (19) 34.0
 
May 23, 2022, 11 a.m. N/A 0.7 ppb (1) 5.6 ppb (6) N/A N/A 0.0 ppb (0) 15.0 ppb (14) 0.15 ppb (2) 9.0 μg/m3 (9) 5.4 μg/m3 (23) 23.0
 
May 23, 2022, 10 a.m. N/A 0.2 ppb (1) 8.0 ppb (8) N/A N/A 0.0 ppb (0) 12.0 ppb (12) 0.14 ppb (2) 8.0 μg/m3 (8) 5.5 μg/m3 (23) 23.0
 
May 23, 2022, 10 a.m. N/A 0.2 ppb (1) 8.0 ppb (8) N/A N/A 0.0 ppb (0) 12.0 ppb (12) 0.14 ppb (2) 8.0 μg/m3 (8) 5.5 μg/m3 (23) 23.0
 
May 23, 2022, 9 a.m. N/A 0.0 ppb (0) 4.9 ppb (5) N/A N/A 0.0 ppb (0) 12.0 ppb (12) 0.14 ppb (2) 8.0 μg/m3 (8) 5.1 μg/m3 (22) 22.0
 
May 23, 2022, 3 a.m. N/A 0.0 ppb (0) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.13 ppb (2) 6.0 μg/m3 (6) 2.6 μg/m3 (11) 26.0
 
May 23, 2022, 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) 0.13 ppb (2) 6.0 μg/m3 (6) 2.4 μg/m3 (10) 27.0
 
May 23, 2022, 1 a.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.12 ppb (2) 7.0 μg/m3 (7) 2.3 μg/m3 (10) 30.0
 
May 23, 2022, midnight N/A 0.0 ppb (0) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.12 ppb (2) 5.0 μg/m3 (5) 1.8 μg/m3 (8) 33.0
 
May 22, 2022, 11 p.m. N/A 0.0 ppb (0) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.12 ppb (2) 5.0 μg/m3 (5) 1.9 μg/m3 (8) 35.0
 
May 22, 2022, 9 p.m. N/A 0.1 ppb (1) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.12 ppb (2) 5.0 μg/m3 (5) 2.7 μg/m3 (12) 35.0
 
May 22, 2022, 8 p.m. N/A 0.1 ppb (1) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.12 ppb (2) 6.0 μg/m3 (6) 2.6 μg/m3 (11) 36.0
 
May 22, 2022, 7 p.m. N/A 0.1 ppb (1) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.12 ppb (2) 4.0 μg/m3 (4) 1.6 μg/m3 (7) 35.0
 
May 22, 2022, 6 p.m. N/A 0.1 ppb (1) 0.6 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.12 ppb (2) 5.0 μg/m3 (5) 1.5 μg/m3 (7) 35.0
 
May 22, 2022, 5 p.m. N/A 0.1 ppb (1) 0.6 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.11 ppb (2) 5.0 μg/m3 (5) 1.5 μg/m3 (7) 34.0
 
May 22, 2022, 4 p.m. N/A 0.1 ppb (1) 0.6 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.11 ppb (2) 5.0 μg/m3 (5) 1.5 μg/m3 (7) 34.0
 
May 22, 2022, 3 p.m. N/A 0.1 ppb (1) 0.6 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.11 ppb (2) 5.0 μg/m3 (5) 2.0 μg/m3 (9) 34.0
 
May 22, 2022, 2 p.m. N/A 0.1 ppb (1) 0.6 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.11 ppb (2) 7.0 μg/m3 (7) 2.6 μg/m3 (11) 34.0
 
May 22, 2022, 1 p.m. N/A 0.1 ppb (1) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.12 ppb (2) 7.0 μg/m3 (7) 2.6 μg/m3 (11) 32.0
 
May 22, 2022, 1 p.m. N/A 0.1 ppb (1) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.12 ppb (2) 7.0 μg/m3 (7) 2.6 μg/m3 (11) 32.0
 
May 22, 2022, noon N/A 0.2 ppb (1) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.12 ppb (2) 7.0 μg/m3 (7) 2.6 μg/m3 (11) 28.0
 
May 22, 2022, 11 a.m. N/A 0.2 ppb (1) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.13 ppb (2) 6.0 μg/m3 (6) 3.1 μg/m3 (13) 25.0
 
May 22, 2022, 10 a.m. N/A 0.0 ppb (0) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.12 ppb (2) 6.0 μg/m3 (6) 3.1 μg/m3 (13) 28.0
 
May 22, 2022, 9 a.m. N/A 0.0 ppb (0) 1.1 ppb (2) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.13 ppb (2) 6.0 μg/m3 (6) 3.1 μg/m3 (13) 28.0
 
May 22, 2022, 8 a.m. N/A 0.0 ppb (0) 1.1 ppb (2) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.13 ppb (2) 7.0 μg/m3 (7) 3.2 μg/m3 (14) 28.0
 
May 22, 2022, 7 a.m. N/A 0.0 ppb (0) 1.1 ppb (2) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.13 ppb (2) 6.0 μg/m3 (6) 3.3 μg/m3 (14) 27.0
 
May 22, 2022, 5 a.m. N/A 0.0 ppb (0) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.13 ppb (2) 7.0 μg/m3 (7) 3.1 μg/m3 (13) 28.0
 
May 22, 2022, 3 a.m. N/A 0.1 ppb (1) 3.9 ppb (4) N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.17 ppb (3) 10.0 μg/m3 (10) 6.5 μg/m3 (28) 28.0
 
May 22, 2022, 2 a.m. N/A 0.0 ppb (0) 3.7 ppb (4) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.16 ppb (3) 11.0 μg/m3 (11) 5.8 μg/m3 (25) 25.0
 
May 22, 2022, 1 a.m. N/A 0.0 ppb (0) 1.9 ppb (2) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.14 ppb (2) 7.0 μg/m3 (7) 3.0 μg/m3 (13) 30.0
 
May 22, 2022, midnight N/A 0.1 ppb (1) 1.2 ppb (2) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.13 ppb (2) 4.0 μg/m3 (4) 1.6 μg/m3 (7) 34.0
 
May 21, 2022, 11 p.m. N/A 0.1 ppb (1) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.13 ppb (2) 5.0 μg/m3 (5) 1.8 μg/m3 (8) 35.0
 
May 21, 2022, 10 p.m. N/A 0.2 ppb (1) 1.6 ppb (2) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.13 ppb (2) 6.0 μg/m3 (6) 2.9 μg/m3 (13) 35.0
 
May 21, 2022, 9 p.m. N/A 0.1 ppb (1) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.13 ppb (2) 8.0 μg/m3 (8) 3.2 μg/m3 (14) 33.0
 
May 21, 2022, 8 p.m. N/A 0.2 ppb (1) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.13 ppb (2) 7.0 μg/m3 (7) 3.4 μg/m3 (15) 32.0
 
May 21, 2022, 7 p.m. N/A 0.2 ppb (1) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.14 ppb (2) 8.0 μg/m3 (8) 3.4 μg/m3 (15) 30.0
 
May 21, 2022, 6 p.m. N/A 0.1 ppb (1) 1.2 ppb (2) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.13 ppb (2) 8.0 μg/m3 (8) 3.6 μg/m3 (16) 29.0
 
May 21, 2022, 5 p.m. N/A 0.1 ppb (1) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.13 ppb (2) 10.0 μg/m3 (10) 4.2 μg/m3 (18) 29.0
 
May 21, 2022, 4 p.m. N/A 0.2 ppb (1) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.13 ppb (2) 10.0 μg/m3 (10) 4.4 μg/m3 (19) 27.0
 
May 21, 2022, 3 p.m. N/A 0.1 ppb (1) 1.2 ppb (2) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.13 ppb (2) 9.0 μg/m3 (9) 4.3 μg/m3 (18) 26.0
 
May 21, 2022, 2 p.m. N/A 0.2 ppb (1) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.13 ppb (2) 10.0 μg/m3 (10) 4.3 μg/m3 (18) 25.0
 
May 21, 2022, 1 p.m. N/A 0.3 ppb (1) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.13 ppb (2) 9.0 μg/m3 (9) 4.2 μg/m3 (18) 25.0
 
May 21, 2022, 1 p.m. N/A 0.3 ppb (1) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.13 ppb (2) 9.0 μg/m3 (9) 4.2 μg/m3 (18) 25.0
 
May 21, 2022, noon N/A 0.2 ppb (1) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.13 ppb (2) 8.0 μg/m3 (8) 4.0 μg/m3 (17) 25.0
 
May 21, 2022, 10 a.m. N/A 0.1 ppb (1) 6.8 ppb (7) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.13 ppb (2) 12.0 μg/m3 (12) 5.1 μg/m3 (22) 24.0
 
May 21, 2022, 9 a.m. N/A 0.0 ppb (0) 3.8 ppb (4) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.12 ppb (2) 10.0 μg/m3 (10) 4.8 μg/m3 (20) 24.0
 
May 21, 2022, 8 a.m. N/A 0.0 ppb (0) 3.8 ppb (4) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.12 ppb (2) 10.0 μg/m3 (10) 4.5 μg/m3 (19) 26.0
 
May 21, 2022, 4 a.m. N/A 0.1 ppb (1) 5.4 ppb (6) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.13 ppb (2) 10.0 μg/m3 (10) 4.5 μg/m3 (19) 28.0
 
May 21, 2022, 3 a.m. N/A 0.0 ppb (0) 3.6 ppb (4) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.12 ppb (2) 9.0 μg/m3 (9) 4.3 μg/m3 (18) 28.0
 
May 21, 2022, 2 a.m. N/A 0.0 ppb (0) 2.4 ppb (3) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.12 ppb (2) 10.0 μg/m3 (10) 4.0 μg/m3 (17) 31.0
 
May 21, 2022, 1 a.m. N/A 0.0 ppb (0) 1.8 ppb (2) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.12 ppb (2) 9.0 μg/m3 (9) 4.0 μg/m3 (17) 35.0
 
May 21, 2022, midnight N/A 0.0 ppb (0) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.12 ppb (2) 11.0 μg/m3 (11) 4.3 μg/m3 (18) 37.0
 
May 20, 2022, 11 p.m. N/A 0.0 ppb (0) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.12 ppb (2) 10.0 μg/m3 (10) 4.8 μg/m3 (20) 39.0
 
May 20, 2022, 10 p.m. N/A 0.0 ppb (0) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 45.0 ppb (42) 0.12 ppb (2) 10.0 μg/m3 (10) 5.3 μg/m3 (23) 42.0
 
May 20, 2022, 9 p.m. N/A 0.0 ppb (0) 1.1 ppb (2) N/A N/A 0.0 ppb (0) 47.0 ppb (44) 0.12 ppb (2) 10.0 μg/m3 (10) 4.9 μg/m3 (21) 44.0
 
May 20, 2022, 7 p.m. N/A 0.1 ppb (1) 1.8 ppb (2) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.13 ppb (2) 12.0 μg/m3 (12) 5.5 μg/m3 (23) 34.0
 
May 20, 2022, 6 p.m. N/A 0.1 ppb (1) 2.0 ppb (2) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.13 ppb (2) 13.0 μg/m3 (13) 6.4 μg/m3 (27) 30.0
 
May 20, 2022, 5 p.m. N/A 0.1 ppb (1) 2.0 ppb (2) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.14 ppb (2) 13.0 μg/m3 (13) 6.9 μg/m3 (29) 30.0
 
May 20, 2022, 4 p.m. N/A 0.8 ppb (1) 3.9 ppb (4) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.17 ppb (3) 17.0 μg/m3 (16) 9.0 μg/m3 (38) 38.0
 
May 20, 2022, 3 p.m. N/A 0.3 ppb (1) 5.4 ppb (6) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.18 ppb (3) 21.0 μg/m3 (20) 10.6 μg/m3 (45) 45.0
 
May 20, 2022, 2 p.m. N/A 0.4 ppb (1) 5.9 ppb (6) N/A N/A 1.0 ppb (2) 31.0 ppb (29) 0.18 ppb (3) 20.0 μg/m3 (19) 10.5 μg/m3 (44) 44.0
 
May 20, 2022, 1 p.m. N/A 0.9 ppb (1) 6.1 ppb (6) N/A N/A 1.0 ppb (2) 29.0 ppb (27) 0.18 ppb (3) 19.0 μg/m3 (18) 10.2 μg/m3 (43) 43.0
 
May 20, 2022, 11 a.m. N/A 0.3 ppb (1) 5.5 ppb (6) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.17 ppb (3) 20.0 μg/m3 (19) 11.7 μg/m3 (49) 49.0
 
May 20, 2022, 10 a.m. N/A 0.1 ppb (1) 5.0 ppb (5) N/A N/A 0.0 ppb (0) N/A 0.16 ppb (3) 20.0 μg/m3 (19) 12.4 μg/m3 (52) 52.0
 
May 20, 2022, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (33) N/A 17.0 μg/m3 (16) 9.4 μg/m3 (40) 40.0
 
May 20, 2022, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.14 ppb (2) 13.0 μg/m3 (13) 7.7 μg/m3 (33) 33.0
 
May 20, 2022, 7 a.m. N/A 0.0 ppb (0) 2.7 ppb (3) N/A N/A N/A 36.0 ppb (34) 0.13 ppb (2) 11.0 μg/m3 (11) 6.0 μg/m3 (25) 34.0
 
May 20, 2022, 6 a.m. N/A 0.0 ppb (0) 2.2 ppb (3) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.13 ppb (2) 11.0 μg/m3 (11) 5.8 μg/m3 (25) 35.0
 
May 20, 2022, 5 a.m. N/A 0.1 ppb (1) 4.9 ppb (5) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.16 ppb (3) 19.0 μg/m3 (18) 9.4 μg/m3 (40) 40.0
 
May 20, 2022, 4 a.m. N/A 0.1 ppb (1) 4.8 ppb (5) N/A N/A 1.0 ppb (2) 46.0 ppb (43) 0.15 ppb (2) 21.0 μg/m3 (20) 7.9 μg/m3 (33) 43.0
 
May 20, 2022, 3 a.m. N/A 0.1 ppb (1) 4.4 ppb (5) N/A N/A 1.0 ppb (2) 51.0 ppb (48) 0.16 ppb (3) 22.0 μg/m3 (21) 7.4 μg/m3 (31) 48.0
 
May 20, 2022, 2 a.m. N/A 0.0 ppb (0) 5.4 ppb (6) N/A N/A 1.0 ppb (2) 56.0 ppb (55) 0.19 ppb (3) 21.0 μg/m3 (20) 9.8 μg/m3 (41) 55.0
 
May 20, 2022, 1 a.m. N/A 0.1 ppb (1) 7.5 ppb (8) N/A N/A 1.0 ppb (2) 61.0 ppb (71) 0.22 ppb (3) 25.0 μg/m3 (24) 13.9 μg/m3 (55) 71.0
 
May 20, 2022, 1 a.m. N/A 0.1 ppb (1) 7.5 ppb (8) N/A N/A 1.0 ppb (2) 61.0 ppb (71) 0.22 ppb (3) 25.0 μg/m3 (24) 13.9 μg/m3 (55) 71.0
 
May 20, 2022, midnight N/A 0.1 ppb (1) 6.3 ppb (6) N/A N/A 0.0 ppb (0) 56.0 ppb (55) 0.19 ppb (3) 22.0 μg/m3 (21) 9.7 μg/m3 (41) 55.0
 
May 20, 2022, midnight N/A 0.1 ppb (1) 6.3 ppb (6) N/A N/A 0.0 ppb (0) 56.0 ppb (55) 0.19 ppb (3) 22.0 μg/m3 (21) 9.7 μg/m3 (41) 55.0
 
May 19, 2022, 11 p.m. N/A 0.3 ppb (1) 7.5 ppb (8) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.18 ppb (3) 23.0 μg/m3 (22) 10.7 μg/m3 (45) 45.0
 
May 19, 2022, 10 p.m. N/A 0.4 ppb (1) 7.0 ppb (7) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.17 ppb (3) 20.0 μg/m3 (19) 11.3 μg/m3 (48) 48.0
 
May 19, 2022, 9 p.m. N/A 0.4 ppb (1) 7.4 ppb (7) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.17 ppb (3) 20.0 μg/m3 (19) 12.9 μg/m3 (53) 53.0
 
May 19, 2022, 8 p.m. N/A 0.3 ppb (1) 6.6 ppb (7) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.17 ppb (3) 21.0 μg/m3 (20) 12.6 μg/m3 (53) 53.0
 
May 19, 2022, 7 p.m. N/A 0.3 ppb (1) 7.6 ppb (8) N/A N/A 0.0 ppb (0) 45.0 ppb (42) 0.17 ppb (3) 25.0 μg/m3 (24) 15.7 μg/m3 (59) 59.0
 
May 19, 2022, 7 p.m. N/A 0.3 ppb (1) 7.6 ppb (8) N/A N/A 0.0 ppb (0) 45.0 ppb (42) 0.17 ppb (3) 25.0 μg/m3 (24) 15.7 μg/m3 (59) 59.0
 
May 19, 2022, 4 p.m. N/A 0.5 ppb (1) 5.7 ppb (6) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.16 ppb (3) 23.0 μg/m3 (22) 11.4 μg/m3 (48) 48.0
 
May 19, 2022, 2 p.m. N/A 1.5 ppb (2) 9.1 ppb (9) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.19 ppb (3) 28.0 μg/m3 (26) 19.9 μg/m3 (68) 68.0
 
May 19, 2022, 6 a.m. N/A 0.1 ppb (1) 7.2 ppb (7) N/A N/A 0.0 ppb (0) 18.0 ppb (17) 0.17 ppb (3) 21.0 μg/m3 (20) 13.7 μg/m3 (55) 55.0
 
May 19, 2022, 5 a.m. N/A 0.0 ppb (0) 6.8 ppb (7) N/A N/A 0.0 ppb (0) 21.0 ppb (20) 0.17 ppb (3) 20.0 μg/m3 (19) 12.6 μg/m3 (53) 53.0
 
May 19, 2022, 4 a.m. N/A 0.0 ppb (0) 6.0 ppb (6) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.17 ppb (3) 17.0 μg/m3 (16) 11.5 μg/m3 (48) 48.0
 
May 19, 2022, 3 a.m. N/A 0.0 ppb (0) 9.7 ppb (10) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.17 ppb (3) 17.0 μg/m3 (16) 11.2 μg/m3 (47) 47.0
 
May 19, 2022, 2 a.m. N/A 0.0 ppb (0) 6.8 ppb (7) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.17 ppb (3) 18.0 μg/m3 (17) 10.0 μg/m3 (42) 42.0
 
May 19, 2022, 1 a.m. N/A 0.0 ppb (0) 7.8 ppb (8) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.17 ppb (3) 15.0 μg/m3 (14) 8.4 μg/m3 (36) 36.0
 
May 18, 2022, 11 p.m. N/A 0.3 ppb (1) 3.8 ppb (4) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.15 ppb (2) 11.0 μg/m3 (11) 5.9 μg/m3 (25) 41.0
 
May 18, 2022, 10 p.m. N/A 0.1 ppb (1) 3.1 ppb (3) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.15 ppb (2) 10.0 μg/m3 (10) 5.4 μg/m3 (23) 41.0
 
May 18, 2022, 9 p.m. N/A 0.0 ppb (0) 2.8 ppb (3) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.15 ppb (2) 9.0 μg/m3 (9) 5.0 μg/m3 (21) 41.0
 
May 18, 2022, 8 p.m. N/A 0.2 ppb (1) 2.6 ppb (3) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.14 ppb (2) 8.0 μg/m3 (8) 4.1 μg/m3 (18) 41.0
 
May 18, 2022, 7 p.m. N/A 0.2 ppb (1) 2.5 ppb (3) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.14 ppb (2) 7.0 μg/m3 (7) 3.5 μg/m3 (15) 41.0
 
May 18, 2022, 5 p.m. N/A 0.3 ppb (1) 2.3 ppb (3) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.15 ppb (2) 7.0 μg/m3 (7) 3.8 μg/m3 (16) 40.0
 
May 18, 2022, 4 p.m. N/A 0.3 ppb (1) 2.5 ppb (3) N/A N/A 0.0 ppb (0) 41.0 ppb (38) 0.15 ppb (2) 8.0 μg/m3 (8) 3.8 μg/m3 (16) 38.0
 
May 18, 2022, 4 p.m. N/A 0.3 ppb (1) 2.5 ppb (3) N/A N/A 0.0 ppb (0) 41.0 ppb (38) 0.15 ppb (2) 8.0 μg/m3 (8) 3.8 μg/m3 (16) 38.0
 
May 18, 2022, 3 p.m. N/A 0.2 ppb (1) 2.4 ppb (3) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.14 ppb (2) 8.0 μg/m3 (8) 3.8 μg/m3 (16) 38.0
 
May 18, 2022, 3 p.m. N/A 0.2 ppb (1) 2.4 ppb (3) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.14 ppb (2) 8.0 μg/m3 (8) 3.8 μg/m3 (16) 38.0
 
May 18, 2022, 2 p.m. N/A 0.2 ppb (1) 1.8 ppb (2) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.14 ppb (2) 7.0 μg/m3 (7) 3.3 μg/m3 (14) 37.0
 
May 18, 2022, 2 p.m. N/A 0.2 ppb (1) 1.8 ppb (2) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.14 ppb (2) 7.0 μg/m3 (7) 3.3 μg/m3 (14) 37.0
 
May 18, 2022, 1 p.m. N/A 0.1 ppb (1) 2.0 ppb (2) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.14 ppb (2) 6.0 μg/m3 (6) 3.3 μg/m3 (14) 35.0
 
May 18, 2022, 1 p.m. N/A 0.1 ppb (1) 2.0 ppb (2) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.14 ppb (2) 6.0 μg/m3 (6) 3.3 μg/m3 (14) 35.0
 
May 18, 2022, noon N/A 0.1 ppb (1) 2.3 ppb (3) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.14 ppb (2) 6.0 μg/m3 (6) 3.2 μg/m3 (14) 36.0
 
May 18, 2022, noon N/A 0.1 ppb (1) 2.3 ppb (3) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.14 ppb (2) 6.0 μg/m3 (6) 3.2 μg/m3 (14) 36.0
 
May 18, 2022, 11 a.m. N/A 0.0 ppb (0) 2.2 ppb (3) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.14 ppb (2) 6.0 μg/m3 (6) 3.3 μg/m3 (14) 38.0
 
May 18, 2022, 10 a.m. N/A 0.0 ppb (0) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.13 ppb (2) 6.0 μg/m3 (6) 3.4 μg/m3 (15) 35.0
 
May 18, 2022, 2 a.m. N/A 0.0 ppb (0) 1.6 ppb (2) N/A N/A 0.0 ppb (0) 21.0 ppb (20) 0.14 ppb (2) 8.0 μg/m3 (8) 1.8 μg/m3 (8) 20.0
 
May 18, 2022, 1 a.m. N/A 0.0 ppb (0) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 19.0 ppb (18) 0.14 ppb (2) 9.0 μg/m3 (9) 2.1 μg/m3 (9) 18.0
 
May 18, 2022, midnight N/A 0.1 ppb (1) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 21.0 ppb (20) 0.15 ppb (2) 13.0 μg/m3 (13) 2.0 μg/m3 (9) 20.0
 
May 17, 2022, 11 p.m. N/A 0.3 ppb (1) 2.2 ppb (3) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.15 ppb (2) 15.0 μg/m3 (14) 2.7 μg/m3 (12) 23.0
 
May 17, 2022, 10 p.m. N/A 0.3 ppb (1) 2.4 ppb (3) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.16 ppb (3) 18.0 μg/m3 (17) 3.2 μg/m3 (14) 26.0
 
May 17, 2022, 9 p.m. N/A 0.3 ppb (1) 2.2 ppb (3) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.15 ppb (2) 20.0 μg/m3 (19) 3.3 μg/m3 (14) 28.0
 
May 17, 2022, 9 p.m. N/A 0.3 ppb (1) 2.2 ppb (3) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.15 ppb (2) 20.0 μg/m3 (19) 3.3 μg/m3 (14) 28.0
 
May 17, 2022, 8 p.m. N/A 0.1 ppb (1) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.14 ppb (2) 9.0 μg/m3 (9) 3.1 μg/m3 (13) 39.0
 
May 17, 2022, 7 p.m. N/A 0.1 ppb (1) 1.2 ppb (2) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.14 ppb (2) 10.0 μg/m3 (10) 3.2 μg/m3 (14) 40.0
 
May 17, 2022, 7 p.m. N/A 0.1 ppb (1) 1.2 ppb (2) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.14 ppb (2) 10.0 μg/m3 (10) 3.2 μg/m3 (14) 40.0