ID: 909

AQSQID: 550270001

Site Name: Horicon Wildlife Area

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

Updated: March 8, 2021, 12:33 a.m.

Location: Horicon (N Palmatory St), WI

Reporting: True, Located: True

Current AQI: 48.0

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
Feb. 28, 2021, 10 p.m. N/A 0.0 ppb (0) 1.9 ppb (2) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.25 ppb (3) 11.0 μg/m3 (11) 8.3 μg/m3 (35) 35.0
 
Feb. 28, 2021, 9 p.m. N/A 0.2 ppb (1) 3.5 ppb (4) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.24 ppb (3) 18.4 μg/m3 (18) 14.4 μg/m3 (56) 56.0
 
Feb. 28, 2021, 8 p.m. N/A 0.3 ppb (1) 3.4 ppb (4) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.24 ppb (3) 16.4 μg/m3 (16) 13.1 μg/m3 (54) 54.0
 
Feb. 28, 2021, 7 p.m. N/A 0.8 ppb (1) 4.4 ppb (5) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.25 ppb (3) 17.3 μg/m3 (17) 12.6 μg/m3 (53) 53.0
 
Feb. 28, 2021, 6 p.m. N/A 1.0 ppb (1) 6.8 ppb (7) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.29 ppb (4) 20.9 μg/m3 (20) 15.0 μg/m3 (58) 58.0
 
Feb. 28, 2021, 5 p.m. N/A 1.2 ppb (2) 5.9 ppb (6) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.28 ppb (4) 18.8 μg/m3 (18) 13.8 μg/m3 (55) 55.0
 
Feb. 28, 2021, 4 p.m. N/A 1.0 ppb (1) 5.6 ppb (6) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.27 ppb (4) 19.0 μg/m3 (18) 15.2 μg/m3 (58) 58.0
 
Feb. 28, 2021, 3 p.m. N/A 0.6 ppb (1) 6.1 ppb (6) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.26 ppb (4) 26.5 μg/m3 (25) 21.0 μg/m3 (70) 70.0
 
Feb. 28, 2021, 2 p.m. N/A 0.3 ppb (1) 6.1 ppb (6) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.26 ppb (4) 30.7 μg/m3 (29) 23.8 μg/m3 (76) 76.0
 
Feb. 28, 2021, 1 p.m. N/A 0.0 ppb (0) 5.4 ppb (6) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.26 ppb (4) 30.9 μg/m3 (29) 24.5 μg/m3 (78) 78.0
 
Feb. 28, 2021, noon N/A 0.0 ppb (0) 5.0 ppb (5) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.26 ppb (4) 29.2 μg/m3 (28) 23.4 μg/m3 (75) 75.0
 
Feb. 28, 2021, 11 a.m. N/A 0.0 ppb (0) 5.3 ppb (5) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.26 ppb (4) 27.7 μg/m3 (26) 22.7 μg/m3 (74) 74.0
 
Feb. 28, 2021, 10 a.m. N/A 0.0 ppb (0) 8.9 ppb (9) N/A N/A 0.0 ppb (0) N/A N/A 33.2 μg/m3 (31) 27.3 μg/m3 (83) 83.0
 
Feb. 28, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (30) N/A 35.4 μg/m3 (33) 28.5 μg/m3 (86) 86.0
 
Feb. 28, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.34 ppb (4) 37.2 μg/m3 (35) 29.1 μg/m3 (87) 87.0
 
Feb. 28, 2021, 7 a.m. N/A 0.0 ppb (0) 12.2 ppb (12) N/A N/A N/A 32.0 ppb (30) 0.34 ppb (4) 39.7 μg/m3 (37) 30.6 μg/m3 (90) 90.0
 
Feb. 28, 2021, 6 a.m. N/A 0.0 ppb (0) 10.3 ppb (10) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.31 ppb (4) 36.9 μg/m3 (35) 26.6 μg/m3 (82) 82.0
 
Feb. 28, 2021, 5 a.m. N/A 0.0 ppb (0) 6.6 ppb (7) N/A N/A 0.0 ppb (0) 47.0 ppb (44) 0.26 ppb (4) 29.2 μg/m3 (28) 19.3 μg/m3 (67) 67.0
 
Feb. 28, 2021, 4 a.m. N/A 0.0 ppb (0) 6.1 ppb (6) N/A N/A 0.0 ppb (0) 51.0 ppb (48) 0.26 ppb (4) 29.5 μg/m3 (28) 19.4 μg/m3 (67) 67.0
 
Feb. 28, 2021, 3 a.m. N/A 0.0 ppb (0) 9.6 ppb (10) N/A N/A 0.0 ppb (0) 48.0 ppb (45) 0.26 ppb (4) 29.2 μg/m3 (28) 19.5 μg/m3 (67) 67.0
 
Feb. 28, 2021, 2 a.m. N/A -0.1 ppb (0) 4.9 ppb (5) N/A N/A 0.0 ppb (0) 53.0 ppb (50) 0.26 ppb (4) 29.8 μg/m3 (28) 18.9 μg/m3 (66) 66.0
 
Feb. 28, 2021, 1 a.m. N/A -0.1 ppb (0) 5.2 ppb (5) N/A N/A 0.0 ppb (0) 55.0 ppb (51) 0.25 ppb (3) 30.2 μg/m3 (28) 20.2 μg/m3 (69) 69.0
 
Feb. 28, 2021, midnight N/A -0.1 ppb (0) 5.2 ppb (5) N/A N/A 0.0 ppb (0) 56.0 ppb (55) 0.24 ppb (3) 27.3 μg/m3 (26) 17.6 μg/m3 (63) 63.0
 
Feb. 27, 2021, 11 p.m. N/A 0.0 ppb (0) 4.8 ppb (5) N/A N/A 0.0 ppb (0) 56.0 ppb (55) 0.24 ppb (3) 26.1 μg/m3 (25) 15.9 μg/m3 (59) 59.0
 
Feb. 27, 2021, 10 p.m. N/A 0.0 ppb (0) 4.1 ppb (4) N/A N/A 0.0 ppb (0) 56.0 ppb (55) 0.23 ppb (3) 21.0 μg/m3 (20) 14.5 μg/m3 (57) 57.0
 
Feb. 27, 2021, 9 p.m. N/A 0.0 ppb (0) 3.8 ppb (4) N/A N/A 0.0 ppb (0) 55.0 ppb (51) 0.22 ppb (3) 22.8 μg/m3 (22) 14.2 μg/m3 (56) 56.0
 
Feb. 27, 2021, 8 p.m. N/A 0.1 ppb (1) 4.3 ppb (5) N/A N/A 0.0 ppb (0) 55.0 ppb (51) 0.23 ppb (3) 23.6 μg/m3 (22) 16.2 μg/m3 (60) 60.0
 
Feb. 27, 2021, 7 p.m. N/A 0.1 ppb (1) 4.6 ppb (5) N/A N/A 0.0 ppb (0) 53.0 ppb (50) 0.23 ppb (3) 25.6 μg/m3 (24) 16.9 μg/m3 (62) 62.0
 
Feb. 27, 2021, 6 p.m. N/A 0.3 ppb (1) 5.9 ppb (6) N/A N/A 0.0 ppb (0) 49.0 ppb (46) 0.24 ppb (3) 29.1 μg/m3 (27) 20.4 μg/m3 (69) 69.0
 
Feb. 27, 2021, 5 p.m. N/A 0.4 ppb (1) 6.0 ppb (6) N/A N/A 0.0 ppb (0) 47.0 ppb (44) 0.25 ppb (3) 29.0 μg/m3 (27) 21.6 μg/m3 (71) 71.0
 
Feb. 27, 2021, 4 p.m. N/A 0.7 ppb (1) 6.5 ppb (7) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.24 ppb (3) 27.4 μg/m3 (26) 20.7 μg/m3 (70) 70.0
 
Feb. 27, 2021, 3 p.m. N/A 0.9 ppb (1) 7.2 ppb (7) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.24 ppb (3) 28.8 μg/m3 (27) 22.0 μg/m3 (72) 72.0
 
Feb. 27, 2021, 2 p.m. N/A 1.1 ppb (2) 8.3 ppb (8) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.25 ppb (3) 30.3 μg/m3 (29) 23.7 μg/m3 (76) 76.0
 
Feb. 27, 2021, 1 p.m. N/A 0.8 ppb (1) 9.6 ppb (10) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.26 ppb (4) 32.8 μg/m3 (31) 26.0 μg/m3 (81) 81.0
 
Feb. 27, 2021, noon N/A 0.0 ppb (0) 8.3 ppb (8) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.25 ppb (3) 33.9 μg/m3 (32) 27.1 μg/m3 (83) 83.0
 
Feb. 27, 2021, 11 a.m. N/A 0.0 ppb (0) 8.9 ppb (9) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.26 ppb (4) 34.2 μg/m3 (32) 27.0 μg/m3 (83) 83.0
 
Feb. 27, 2021, 10 a.m. N/A 0.0 ppb (0) 9.5 ppb (9) N/A N/A 0.0 ppb (0) N/A N/A 34.5 μg/m3 (32) 27.0 μg/m3 (83) 83.0
 
Feb. 27, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (31) N/A 32.4 μg/m3 (30) 25.5 μg/m3 (80) 80.0
 
Feb. 27, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.26 ppb (4) 29.4 μg/m3 (28) 22.9 μg/m3 (74) 74.0
 
Feb. 27, 2021, 7 a.m. N/A 0.0 ppb (0) 8.5 ppb (9) N/A N/A N/A 36.0 ppb (34) 0.27 ppb (4) 29.3 μg/m3 (28) 22.5 μg/m3 (73) 73.0
 
Feb. 27, 2021, 6 a.m. N/A 0.0 ppb (0) 9.6 ppb (10) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.28 ppb (4) 28.2 μg/m3 (27) 21.8 μg/m3 (72) 72.0
 
Feb. 27, 2021, 5 a.m. N/A 0.0 ppb (0) 10.2 ppb (10) N/A N/A 1.0 ppb (2) 37.0 ppb (35) 0.29 ppb (4) 27.0 μg/m3 (25) 19.1 μg/m3 (66) 66.0
 
Feb. 27, 2021, 4 a.m. N/A 0.0 ppb (0) 8.4 ppb (8) N/A N/A 1.0 ppb (2) 40.0 ppb (38) 0.28 ppb (4) 24.2 μg/m3 (23) 16.1 μg/m3 (60) 60.0
 
Feb. 27, 2021, 3 a.m. N/A 0.0 ppb (0) 7.8 ppb (8) N/A N/A 1.0 ppb (2) 42.0 ppb (39) 0.28 ppb (4) 23.2 μg/m3 (22) 14.8 μg/m3 (57) 57.0
 
Feb. 27, 2021, 2 a.m. N/A 0.0 ppb (0) 8.5 ppb (9) N/A N/A 1.0 ppb (2) 41.0 ppb (38) 0.28 ppb (4) 22.4 μg/m3 (21) 13.6 μg/m3 (55) 55.0
 
Feb. 27, 2021, 1 a.m. N/A 0.0 ppb (0) 9.9 ppb (10) N/A N/A 1.0 ppb (2) 39.0 ppb (37) 0.27 ppb (4) 24.3 μg/m3 (23) 13.0 μg/m3 (53) 53.0
 
Feb. 27, 2021, midnight N/A 0.0 ppb (0) 12.4 ppb (12) N/A N/A 1.0 ppb (2) 37.0 ppb (35) 0.28 ppb (4) 25.8 μg/m3 (24) 14.0 μg/m3 (55) 55.0
 
Feb. 26, 2021, 11 p.m. N/A 0.1 ppb (1) 5.8 ppb (6) N/A N/A 0.0 ppb (0) 46.0 ppb (43) 0.2 ppb (3) 16.6 μg/m3 (16) 9.1 μg/m3 (38) 43.0
 
Feb. 26, 2021, 10 p.m. N/A 0.4 ppb (1) 5.3 ppb (5) N/A N/A 0.0 ppb (0) 46.0 ppb (43) 0.2 ppb (3) 14.6 μg/m3 (14) 7.6 μg/m3 (32) 43.0
 
Feb. 26, 2021, 9 p.m. N/A 0.8 ppb (1) 4.3 ppb (5) N/A N/A 0.0 ppb (0) 47.0 ppb (44) 0.19 ppb (3) 12.9 μg/m3 (12) 5.5 μg/m3 (23) 44.0
 
Feb. 26, 2021, 8 p.m. N/A 1.5 ppb (2) 5.3 ppb (5) N/A N/A 0.0 ppb (0) 46.0 ppb (43) 0.19 ppb (3) 12.0 μg/m3 (12) 6.5 μg/m3 (28) 43.0
 
Feb. 26, 2021, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 48.0 ppb (45) 0.19 ppb (3) 12.0 μg/m3 (12) 8.5 μg/m3 (36) 45.0
 
Feb. 26, 2021, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 49.0 ppb (46) 0.19 ppb (3) 12.7 μg/m3 (12) 9.2 μg/m3 (39) 46.0
 
Feb. 26, 2021, 5 p.m. N/A 0.5 ppb (1) 3.6 ppb (4) N/A N/A N/A 47.0 ppb (44) 0.2 ppb (3) 16.2 μg/m3 (15) 11.0 μg/m3 (46) 46.0
 
Feb. 26, 2021, 4 p.m. N/A 0.9 ppb (1) 4.8 ppb (5) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.2 ppb (3) 19.5 μg/m3 (19) 13.8 μg/m3 (55) 55.0
 
Feb. 26, 2021, 3 p.m. N/A 1.4 ppb (2) 6.3 ppb (6) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.21 ppb (3) 20.3 μg/m3 (19) 15.0 μg/m3 (58) 58.0
 
Feb. 26, 2021, 2 p.m. N/A 1.4 ppb (2) 7.2 ppb (7) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.22 ppb (3) 23.0 μg/m3 (22) 17.5 μg/m3 (63) 63.0
 
Feb. 26, 2021, 1 p.m. N/A 0.8 ppb (1) 8.3 ppb (8) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.23 ppb (3) 25.5 μg/m3 (24) 20.9 μg/m3 (70) 70.0
 
Feb. 26, 2021, noon N/A 0.1 ppb (1) 7.5 ppb (8) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.22 ppb (3) 25.7 μg/m3 (24) 21.1 μg/m3 (70) 70.0
 
Feb. 26, 2021, 11 a.m. N/A 0.1 ppb (1) 8.5 ppb (9) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.21 ppb (3) 24.8 μg/m3 (23) 20.9 μg/m3 (70) 70.0
 
Feb. 26, 2021, 10 a.m. N/A 0.1 ppb (1) 6.3 ppb (6) N/A N/A 0.0 ppb (0) N/A N/A 25.3 μg/m3 (24) 20.3 μg/m3 (69) 69.0
 
Feb. 26, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 39.0 ppb (37) N/A 25.0 μg/m3 (24) 20.1 μg/m3 (68) 68.0
 
Feb. 26, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (38) 0.2 ppb (3) 21.9 μg/m3 (21) 17.2 μg/m3 (62) 62.0
 
Feb. 26, 2021, 7 a.m. N/A 0.1 ppb (1) 5.2 ppb (5) N/A N/A N/A 40.0 ppb (38) 0.2 ppb (3) 18.1 μg/m3 (17) 13.4 μg/m3 (54) 54.0
 
Feb. 26, 2021, 6 a.m. N/A 0.1 ppb (1) 4.1 ppb (4) N/A N/A 0.0 ppb (0) 41.0 ppb (38) 0.2 ppb (3) 16.5 μg/m3 (16) 12.1 μg/m3 (51) 51.0
 
Feb. 26, 2021, 5 a.m. N/A 0.1 ppb (1) 4.0 ppb (4) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.2 ppb (3) 15.4 μg/m3 (15) 11.6 μg/m3 (49) 49.0
 
Feb. 26, 2021, 4 a.m. N/A 0.1 ppb (1) 3.8 ppb (4) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.2 ppb (3) 15.0 μg/m3 (14) 11.5 μg/m3 (48) 48.0
 
Feb. 26, 2021, 3 a.m. N/A 0.1 ppb (1) 3.8 ppb (4) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.21 ppb (3) 15.0 μg/m3 (14) 11.3 μg/m3 (48) 48.0
 
Feb. 26, 2021, 2 a.m. N/A 0.1 ppb (1) 3.5 ppb (4) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.21 ppb (3) 14.5 μg/m3 (14) 11.2 μg/m3 (47) 47.0
 
Feb. 26, 2021, 1 a.m. N/A 0.0 ppb (0) 3.3 ppb (4) N/A N/A 0.0 ppb (0) 45.0 ppb (42) 0.21 ppb (3) 14.8 μg/m3 (14) 10.7 μg/m3 (45) 45.0
 
Feb. 26, 2021, midnight N/A 0.0 ppb (0) 3.1 ppb (3) N/A N/A 0.0 ppb (0) 46.0 ppb (43) 0.2 ppb (3) 14.6 μg/m3 (14) 9.6 μg/m3 (40) 43.0
 
Feb. 25, 2021, 11 p.m. N/A 0.1 ppb (1) 3.3 ppb (4) N/A N/A 0.0 ppb (0) 47.0 ppb (44) 0.2 ppb (3) 14.6 μg/m3 (14) 9.2 μg/m3 (39) 44.0
 
Feb. 25, 2021, 10 p.m. N/A 0.2 ppb (1) 2.6 ppb (3) N/A N/A 0.0 ppb (0) 49.0 ppb (46) 0.2 ppb (3) 14.0 μg/m3 (13) 8.9 μg/m3 (38) 46.0
 
Feb. 25, 2021, 9 p.m. N/A 0.3 ppb (1) 2.4 ppb (3) N/A N/A 0.0 ppb (0) 49.0 ppb (46) 0.2 ppb (3) 13.4 μg/m3 (13) 8.9 μg/m3 (38) 46.0
 
Feb. 25, 2021, 8 p.m. N/A 0.3 ppb (1) 2.3 ppb (3) N/A N/A 0.0 ppb (0) 49.0 ppb (46) 0.19 ppb (3) 12.3 μg/m3 (12) 8.7 μg/m3 (37) 46.0
 
Feb. 25, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 12.3 μg/m3 (12) 8.9 μg/m3 (38) 45.0
 
Feb. 25, 2021, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 47.0 ppb (44) 0.2 ppb (3) 11.7 μg/m3 (11) 8.6 μg/m3 (36) 44.0
 
Feb. 25, 2021, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 47.0 ppb (44) 0.2 ppb (3) 12.3 μg/m3 (12) 8.2 μg/m3 (35) 44.0
 
Feb. 25, 2021, 4 p.m. N/A 0.7 ppb (1) 3.0 ppb (3) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.2 ppb (3) 12.3 μg/m3 (12) 8.6 μg/m3 (36) 41.0
 
Feb. 25, 2021, 3 p.m. N/A 1.7 ppb (2) 6.0 ppb (6) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.22 ppb (3) 14.2 μg/m3 (14) 9.5 μg/m3 (40) 40.0
 
Feb. 25, 2021, 2 p.m. N/A 1.7 ppb (2) 6.3 ppb (6) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.22 ppb (3) 11.7 μg/m3 (11) 8.6 μg/m3 (36) 36.0
 
Feb. 25, 2021, 1 p.m. N/A 0.7 ppb (1) 4.8 ppb (5) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.21 ppb (3) 11.2 μg/m3 (11) 8.0 μg/m3 (34) 34.0
 
Feb. 25, 2021, noon N/A 0.8 ppb (1) 7.1 ppb (7) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.22 ppb (3) 11.2 μg/m3 (11) 7.8 μg/m3 (33) 33.0
 
Feb. 25, 2021, 11 a.m. N/A 0.4 ppb (1) 11.5 ppb (11) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.25 ppb (3) 12.0 μg/m3 (12) 8.3 μg/m3 (35) 35.0
 
Feb. 25, 2021, 10 a.m. N/A 0.3 ppb (1) 10.0 ppb (10) N/A N/A 0.0 ppb (0) N/A N/A 11.2 μg/m3 (11) 8.2 μg/m3 (35) 35.0
 
Feb. 25, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 27.0 ppb (25) N/A 10.9 μg/m3 (11) 7.8 μg/m3 (33) 33.0
 
Feb. 25, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.24 ppb (3) 10.3 μg/m3 (10) 7.5 μg/m3 (32) 32.0
 
Feb. 25, 2021, 7 a.m. N/A 0.4 ppb (1) 11.4 ppb (11) N/A N/A N/A 27.0 ppb (25) 0.25 ppb (3) 9.9 μg/m3 (10) 7.2 μg/m3 (31) 31.0
 
Feb. 25, 2021, 6 a.m. N/A 0.8 ppb (1) 6.5 ppb (7) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.24 ppb (3) 9.4 μg/m3 (9) 6.7 μg/m3 (28) 30.0
 
Feb. 25, 2021, 5 a.m. N/A 0.9 ppb (1) 12.2 ppb (12) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.25 ppb (3) 9.0 μg/m3 (9) 6.3 μg/m3 (27) 27.0
 
Feb. 25, 2021, 4 a.m. N/A 0.4 ppb (1) 4.1 ppb (4) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.23 ppb (3) 8.4 μg/m3 (8) 5.7 μg/m3 (24) 35.0
 
Feb. 25, 2021, 3 a.m. N/A 0.3 ppb (1) 4.2 ppb (4) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.22 ppb (3) 7.0 μg/m3 (7) 4.9 μg/m3 (21) 35.0
 
Feb. 25, 2021, 2 a.m. N/A 0.3 ppb (1) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.21 ppb (3) 6.2 μg/m3 (6) 4.1 μg/m3 (18) 38.0
 
Feb. 25, 2021, 1 a.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 41.0 ppb (38) 0.21 ppb (3) 5.7 μg/m3 (6) 3.6 μg/m3 (16) 38.0
 
Feb. 25, 2021, midnight N/A 0.1 ppb (1) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 41.0 ppb (38) 0.21 ppb (3) 5.6 μg/m3 (6) 3.7 μg/m3 (16) 38.0
 
Feb. 24, 2021, 11 p.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.21 ppb (3) 6.6 μg/m3 (7) 3.8 μg/m3 (16) 40.0
 
Feb. 24, 2021, 10 p.m. N/A 0.1 ppb (1) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.21 ppb (3) 5.9 μg/m3 (6) 3.5 μg/m3 (15) 41.0
 
Feb. 24, 2021, 9 p.m. N/A 0.2 ppb (1) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.2 ppb (3) 4.1 μg/m3 (4) 3.1 μg/m3 (13) 40.0
 
Feb. 24, 2021, 8 p.m. N/A 0.1 ppb (1) 0.6 ppb (1) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.2 ppb (3) 2.3 μg/m3 (3) 1.7 μg/m3 (8) 39.0
 
Feb. 24, 2021, 7 p.m. N/A 0.1 ppb (1) 0.6 ppb (1) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.19 ppb (3) 2.4 μg/m3 (3) 1.8 μg/m3 (8) 39.0
 
Feb. 24, 2021, 6 p.m. N/A 0.1 ppb (1) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.19 ppb (3) 1.8 μg/m3 (2) 1.6 μg/m3 (7) 38.0
 
Feb. 24, 2021, 5 p.m. N/A 0.3 ppb (1) 1.8 ppb (2) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.19 ppb (3) 7.9 μg/m3 (8) 5.9 μg/m3 (25) 35.0
 
Feb. 24, 2021, 4 p.m. N/A 0.5 ppb (1) 2.8 ppb (3) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.2 ppb (3) 12.9 μg/m3 (12) 9.9 μg/m3 (42) 42.0
 
Feb. 24, 2021, 3 p.m. N/A 0.5 ppb (1) 3.1 ppb (3) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.21 ppb (3) 13.1 μg/m3 (13) 10.1 μg/m3 (43) 43.0
 
Feb. 24, 2021, 2 p.m. N/A 0.4 ppb (1) 4.1 ppb (4) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.22 ppb (3) 14.8 μg/m3 (14) 9.5 μg/m3 (40) 40.0
 
Feb. 24, 2021, 1 p.m. N/A 0.3 ppb (1) 4.1 ppb (4) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.21 ppb (3) 15.4 μg/m3 (15) 8.5 μg/m3 (36) 39.0
 
Feb. 24, 2021, noon N/A 0.4 ppb (1) 4.9 ppb (5) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.2 ppb (3) 16.4 μg/m3 (16) 8.9 μg/m3 (38) 38.0
 
Feb. 24, 2021, 11 a.m. N/A 0.4 ppb (1) 5.0 ppb (5) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.21 ppb (3) 15.9 μg/m3 (15) 8.2 μg/m3 (35) 36.0
 
Feb. 24, 2021, 10 a.m. N/A 0.4 ppb (1) 6.4 ppb (7) N/A N/A 0.0 ppb (0) N/A N/A 16.3 μg/m3 (16) 8.2 μg/m3 (35) 35.0
 
Feb. 24, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (35) N/A 13.8 μg/m3 (13) 7.1 μg/m3 (30) 35.0
 
Feb. 24, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.21 ppb (3) 13.2 μg/m3 (13) 6.9 μg/m3 (29) 38.0
 
Feb. 24, 2021, 7 a.m. N/A 0.1 ppb (1) 4.4 ppb (5) N/A N/A N/A 43.0 ppb (40) 0.21 ppb (3) 14.3 μg/m3 (14) 7.6 μg/m3 (32) 40.0
 
Feb. 24, 2021, 6 a.m. N/A 0.1 ppb (1) 4.1 ppb (4) N/A N/A 0.0 ppb (0) 46.0 ppb (43) 0.21 ppb (3) 13.3 μg/m3 (13) 7.4 μg/m3 (31) 43.0
 
Feb. 24, 2021, 5 a.m. N/A 0.1 ppb (1) 4.3 ppb (5) N/A N/A 0.0 ppb (0) 47.0 ppb (44) 0.21 ppb (3) 12.7 μg/m3 (12) 7.7 μg/m3 (33) 44.0
 
Feb. 24, 2021, 4 a.m. N/A 0.1 ppb (1) 4.8 ppb (5) N/A N/A 0.0 ppb (0) 46.0 ppb (43) 0.21 ppb (3) 11.8 μg/m3 (11) 7.3 μg/m3 (31) 43.0
 
Feb. 24, 2021, 3 a.m. N/A 0.1 ppb (1) 4.7 ppb (5) N/A N/A 0.0 ppb (0) 47.0 ppb (44) 0.21 ppb (3) 10.8 μg/m3 (10) 6.5 μg/m3 (28) 44.0
 
Feb. 24, 2021, 2 a.m. N/A 0.0 ppb (0) 3.4 ppb (4) N/A N/A 0.0 ppb (0) 49.0 ppb (46) 0.21 ppb (3) 10.3 μg/m3 (10) 6.1 μg/m3 (26) 46.0
 
Feb. 24, 2021, 1 a.m. N/A 0.0 ppb (0) 3.1 ppb (3) N/A N/A 0.0 ppb (0) 50.0 ppb (47) 0.2 ppb (3) 10.7 μg/m3 (10) 5.2 μg/m3 (22) 47.0
 
Feb. 24, 2021, midnight N/A 0.0 ppb (0) 3.0 ppb (3) N/A N/A 0.0 ppb (0) 50.0 ppb (47) 0.2 ppb (3) 9.6 μg/m3 (9) 4.9 μg/m3 (21) 47.0
 
Feb. 23, 2021, 11 p.m. N/A 0.0 ppb (0) 2.9 ppb (3) N/A N/A 0.0 ppb (0) 50.0 ppb (47) 0.2 ppb (3) 9.0 μg/m3 (9) 4.6 μg/m3 (20) 47.0
 
Feb. 23, 2021, 10 p.m. N/A 0.4 ppb (1) 4.3 ppb (5) N/A N/A 0.0 ppb (0) 49.0 ppb (46) 0.2 ppb (3) 8.4 μg/m3 (8) 4.6 μg/m3 (20) 46.0
 
Feb. 23, 2021, 9 p.m. N/A 3.2 ppb (4) 7.8 ppb (8) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.2 ppb (3) 7.7 μg/m3 (8) 3.8 μg/m3 (16) 41.0
 
Feb. 23, 2021, 8 p.m. N/A 1.7 ppb (2) 4.8 ppb (5) N/A N/A 0.0 ppb (0) 50.0 ppb (47) 0.19 ppb (3) 9.3 μg/m3 (9) 4.2 μg/m3 (18) 47.0
 
Feb. 23, 2021, 7 p.m. N/A 0.5 ppb (1) 2.8 ppb (3) N/A N/A 0.0 ppb (0) 51.0 ppb (48) 0.19 ppb (3) 9.2 μg/m3 (9) 4.4 μg/m3 (19) 48.0
 
Feb. 23, 2021, 6 p.m. N/A 0.6 ppb (1) 3.1 ppb (3) N/A N/A 0.0 ppb (0) N/A 0.19 ppb (3) 9.7 μg/m3 (9) 4.6 μg/m3 (20) 20.0
 
Feb. 23, 2021, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.19 ppb (3) 9.8 μg/m3 (10) 5.0 μg/m3 (21) 41.0
 
Feb. 23, 2021, 4 p.m. N/A 1.5 ppb (2) 4.8 ppb (5) N/A N/A 1.0 ppb (2) 40.0 ppb (38) 0.2 ppb (3) 9.8 μg/m3 (10) 5.4 μg/m3 (23) 38.0
 
Feb. 23, 2021, 3 p.m. N/A 0.7 ppb (1) 2.7 ppb (3) N/A N/A 0.0 ppb (0) 38.0 ppb (36) N/A 9.1 μg/m3 (9) 5.0 μg/m3 (21) 36.0
 
Feb. 23, 2021, 2 p.m. N/A 1.3 ppb (2) 3.9 ppb (4) N/A N/A 0.0 ppb (0) 36.0 ppb (34) N/A 10.0 μg/m3 (10) 5.5 μg/m3 (23) 34.0
 
Feb. 23, 2021, 1 p.m. N/A 0.7 ppb (1) 3.1 ppb (3) N/A N/A 0.0 ppb (0) 35.0 ppb (33) N/A 10.0 μg/m3 (10) 5.1 μg/m3 (22) 33.0
 
Feb. 23, 2021, noon N/A 0.5 ppb (1) 2.7 ppb (3) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.18 ppb (3) 9.8 μg/m3 (10) 4.8 μg/m3 (20) 33.0
 
Feb. 23, 2021, 11 a.m. N/A 0.4 ppb (1) 3.1 ppb (3) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.18 ppb (3) 10.8 μg/m3 (10) 4.9 μg/m3 (21) 34.0
 
Feb. 23, 2021, 10 a.m. N/A 0.4 ppb (1) 2.6 ppb (3) N/A N/A 0.0 ppb (0) N/A N/A 10.8 μg/m3 (10) 4.8 μg/m3 (20) 20.0
 
Feb. 23, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 39.0 ppb (37) N/A 12.1 μg/m3 (12) 5.0 μg/m3 (21) 37.0
 
Feb. 23, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.19 ppb (3) 13.2 μg/m3 (13) 6.3 μg/m3 (27) 39.0
 
Feb. 23, 2021, 7 a.m. N/A 0.3 ppb (1) 6.6 ppb (7) N/A N/A N/A 45.0 ppb (42) 0.19 ppb (3) 12.9 μg/m3 (12) 7.2 μg/m3 (31) 42.0
 
Feb. 23, 2021, 6 a.m. N/A 0.3 ppb (1) 5.8 ppb (6) N/A N/A 0.0 ppb (0) 47.0 ppb (44) 0.19 ppb (3) 13.2 μg/m3 (13) 7.4 μg/m3 (31) 44.0
 
Feb. 23, 2021, 5 a.m. N/A 0.2 ppb (1) 5.0 ppb (5) N/A N/A 0.0 ppb (0) 50.0 ppb (47) 0.19 ppb (3) 12.5 μg/m3 (12) 7.2 μg/m3 (31) 47.0
 
Feb. 23, 2021, 4 a.m. N/A 0.2 ppb (1) 5.0 ppb (5) N/A N/A 0.0 ppb (0) 50.0 ppb (47) 0.19 ppb (3) 11.8 μg/m3 (11) 6.9 μg/m3 (29) 47.0
 
Feb. 23, 2021, 3 a.m. N/A 0.1 ppb (1) 4.2 ppb (4) N/A N/A 0.0 ppb (0) 52.0 ppb (49) 0.19 ppb (3) 11.8 μg/m3 (11) 7.2 μg/m3 (31) 49.0
 
Feb. 23, 2021, 2 a.m. N/A 0.1 ppb (1) 4.6 ppb (5) N/A N/A 0.0 ppb (0) 52.0 ppb (49) 0.19 ppb (3) 13.1 μg/m3 (13) 9.1 μg/m3 (38) 49.0
 
Feb. 23, 2021, 1 a.m. N/A 0.0 ppb (0) 4.7 ppb (5) N/A N/A 0.0 ppb (0) 54.0 ppb (50) 0.2 ppb (3) 17.5 μg/m3 (17) 12.6 μg/m3 (53) 53.0
 
Feb. 23, 2021, midnight N/A 0.0 ppb (0) 5.2 ppb (5) N/A N/A 0.0 ppb (0) 57.0 ppb (58) 0.21 ppb (3) 20.9 μg/m3 (20) 15.8 μg/m3 (59) 59.0
 
Feb. 22, 2021, 11 p.m. N/A 0.1 ppb (1) 5.8 ppb (6) N/A N/A 0.0 ppb (0) 59.0 ppb (65) 0.22 ppb (3) 24.3 μg/m3 (23) 19.3 μg/m3 (67) 67.0
 
Feb. 22, 2021, 10 p.m. N/A 0.2 ppb (1) 5.4 ppb (6) N/A N/A 0.0 ppb (0) 56.0 ppb (55) 0.22 ppb (3) 24.8 μg/m3 (23) 19.4 μg/m3 (67) 67.0
 
Feb. 22, 2021, 9 p.m. N/A 0.3 ppb (1) 4.5 ppb (5) N/A N/A 0.0 ppb (0) 54.0 ppb (50) 0.2 ppb (3) 20.6 μg/m3 (20) 16.1 μg/m3 (60) 60.0
 
Feb. 22, 2021, 8 p.m. N/A 0.4 ppb (1) 4.6 ppb (5) N/A N/A 0.0 ppb (0) 54.0 ppb (50) 0.21 ppb (3) 22.4 μg/m3 (21) 17.9 μg/m3 (64) 64.0
 
Feb. 22, 2021, 7 p.m. N/A 0.4 ppb (1) 4.7 ppb (5) N/A N/A 0.0 ppb (0) 53.0 ppb (50) 0.22 ppb (3) 22.9 μg/m3 (22) 18.8 μg/m3 (66) 66.0
 
Feb. 22, 2021, 6 p.m. N/A 0.5 ppb (1) 4.4 ppb (5) N/A N/A 0.0 ppb (0) 53.0 ppb (50) 0.22 ppb (3) 19.2 μg/m3 (18) 15.5 μg/m3 (59) 59.0
 
Feb. 22, 2021, 5 p.m. N/A 0.6 ppb (1) 4.8 ppb (5) N/A N/A 0.0 ppb (0) 53.0 ppb (50) 0.22 ppb (3) 20.3 μg/m3 (19) 16.3 μg/m3 (60) 60.0
 
Feb. 22, 2021, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 51.0 ppb (48) 0.23 ppb (3) 23.2 μg/m3 (22) 18.7 μg/m3 (65) 65.0
 
Feb. 22, 2021, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 48.0 ppb (45) 0.28 ppb (4) 36.6 μg/m3 (34) 30.7 μg/m3 (91) 91.0
 
Feb. 22, 2021, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 47.0 ppb (44) 0.26 ppb (4) 31.0 μg/m3 (29) 27.7 μg/m3 (84) 84.0
 
Feb. 22, 2021, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 45.0 ppb (42) 0.26 ppb (4) 29.4 μg/m3 (28) 26.8 μg/m3 (82) 82.0
 
Feb. 22, 2021, noon N/A 0.5 ppb (1) 7.0 ppb (7) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.26 ppb (4) 27.7 μg/m3 (26) 25.2 μg/m3 (79) 79.0
 
Feb. 22, 2021, 11 a.m. N/A 0.4 ppb (1) 6.0 ppb (6) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.25 ppb (3) 24.4 μg/m3 (23) 22.5 μg/m3 (73) 73.0
 
Feb. 22, 2021, 10 a.m. N/A 0.1 ppb (1) 4.4 ppb (5) N/A N/A 0.0 ppb (0) N/A N/A 21.1 μg/m3 (20) 19.6 μg/m3 (67) 67.0
 
Feb. 22, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 49.0 ppb (46) N/A 20.7 μg/m3 (20) 19.1 μg/m3 (66) 66.0
 
Feb. 22, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 48.0 ppb (45) 0.23 ppb (3) 22.6 μg/m3 (21) 20.5 μg/m3 (69) 69.0
 
Feb. 22, 2021, 7 a.m. N/A 0.2 ppb (1) 5.6 ppb (6) N/A N/A N/A 47.0 ppb (44) 0.25 ppb (3) 20.6 μg/m3 (20) 19.0 μg/m3 (66) 66.0
 
Feb. 22, 2021, 6 a.m. N/A 0.5 ppb (1) 6.9 ppb (7) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.25 ppb (3) 16.8 μg/m3 (16) 15.9 μg/m3 (59) 59.0
 
Feb. 22, 2021, 5 a.m. N/A 0.1 ppb (1) 5.6 ppb (6) N/A N/A 0.0 ppb (0) 46.0 ppb (43) 0.25 ppb (3) 16.3 μg/m3 (16) 15.2 μg/m3 (58) 58.0
 
Feb. 22, 2021, 4 a.m. N/A 0.1 ppb (1) 5.6 ppb (6) N/A N/A 0.0 ppb (0) 47.0 ppb (44) 0.25 ppb (3) 16.6 μg/m3 (16) 15.4 μg/m3 (58) 58.0
 
Feb. 22, 2021, 3 a.m. N/A 0.1 ppb (1) 6.1 ppb (6) N/A N/A 0.0 ppb (0) 48.0 ppb (45) 0.25 ppb (3) 17.4 μg/m3 (17) 16.1 μg/m3 (60) 60.0
 
Feb. 22, 2021, 2 a.m. N/A 0.1 ppb (1) 5.5 ppb (6) N/A N/A 0.0 ppb (0) 50.0 ppb (47) 0.24 ppb (3) 16.3 μg/m3 (16) 14.6 μg/m3 (57) 57.0
 
Feb. 22, 2021, 1 a.m. N/A 0.2 ppb (1) 5.1 ppb (5) N/A N/A 0.0 ppb (0) 52.0 ppb (49) 0.23 ppb (3) 16.4 μg/m3 (16) 14.2 μg/m3 (56) 56.0
 
Feb. 22, 2021, midnight N/A 0.1 ppb (1) 5.0 ppb (5) N/A N/A 1.0 ppb (2) 54.0 ppb (50) 0.22 ppb (3) 16.9 μg/m3 (16) 14.3 μg/m3 (56) 56.0
 
Feb. 21, 2021, 11 p.m. N/A 0.1 ppb (1) 7.1 ppb (7) N/A N/A 1.0 ppb (2) 52.0 ppb (49) 0.23 ppb (3) 19.3 μg/m3 (18) 14.9 μg/m3 (57) 57.0