AQSQID: 550790026

Site Name: Milwaukee Ser Dnr

Location: Milwaukee (N 2nd St), WI

Reporting: True, Located: True

Current AQI: 36.0

Milwaukee (N 2nd St) WI, US: 43.0611, -87.9125

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 25, 2019, 8 p.m. 4.9 ppb (5) -0.7 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 47.0 ppb (36) N/A 13.0 μg/m3 (12) 5.8 μg/m3 (24) 36.0
 
May 25, 2019, 7 p.m. 4.6 ppb (4) -0.7 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 46.0 ppb (35) N/A 14.0 μg/m3 (13) 5.9 μg/m3 (25) 35.0
 
May 25, 2019, 6 p.m. 3.8 ppb (4) -0.8 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 44.0 ppb (34) N/A 15.0 μg/m3 (14) 6.2 μg/m3 (26) 34.0
 
May 25, 2019, 5 p.m. 4.2 ppb (4) -0.5 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 40.0 ppb (31) N/A 14.0 μg/m3 (13) 6.0 μg/m3 (25) 31.0
 
May 25, 2019, 4 p.m. 5.5 ppb (5) -0.2 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 37.0 ppb (28) N/A 13.0 μg/m3 (12) 6.0 μg/m3 (25) 28.0
 
May 25, 2019, 3 p.m. 4.4 ppb (4) -1.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 37.0 ppb (28) N/A 14.0 μg/m3 (13) 6.6 μg/m3 (28) 28.0
 
May 25, 2019, 2 p.m. 4.4 ppb (4) -0.6 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 35.0 ppb (27) N/A 15.0 μg/m3 (14) 7.1 μg/m3 (30) 30.0
 
May 25, 2019, 1 p.m. 5.2 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 25.0 ppb (19) N/A 17.0 μg/m3 (15) 9.0 μg/m3 (38) 38.0
 
May 25, 2019, noon 11.2 ppb (10) 1.4 ppb (1) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 15.0 ppb (12) N/A 19.0 μg/m3 (17) 10.6 μg/m3 (44) 44.0
 
May 25, 2019, 11 a.m. 17.6 ppb (16) 3.2 ppb (3) N/A 14.0 ppb (13) N/A 1.0 ppb (1) 8.0 ppb (6) N/A 17.0 μg/m3 (15) 11.8 μg/m3 (49) 49.0
 
May 25, 2019, 10 a.m. 13.4 ppb (12) 0.1 ppb (0) N/A 13.0 ppb (12) N/A 1.0 ppb (1) 13.0 ppb (10) N/A 20.0 μg/m3 (18) 13.9 μg/m3 (54) 54.0
 
May 25, 2019, 9 a.m. 20.7 ppb (19) 1.3 ppb (1) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 5.0 ppb (4) N/A 22.0 μg/m3 (20) 15.0 μg/m3 (56) 56.0
 
May 25, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 13.7 μg/m3 (54) 54.0
 
May 25, 2019, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 14.0 ppb (11) N/A 18.0 μg/m3 (16) 11.7 μg/m3 (49) 49.0
 
May 25, 2019, 6 a.m. 7.1 ppb (7) -1.1 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 14.0 μg/m3 (13) 9.8 μg/m3 (41) 41.0
 
May 25, 2019, 5 a.m. 3.4 ppb (3) -1.4 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 35.0 ppb (27) N/A 13.0 μg/m3 (12) 8.7 μg/m3 (36) 36.0
 
May 25, 2019, 4 a.m. 4.9 ppb (5) -1.3 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 34.0 ppb (26) N/A 14.0 μg/m3 (13) 9.0 μg/m3 (38) 38.0
 
May 25, 2019, 3 a.m. 5.9 ppb (5) -1.2 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 32.0 ppb (25) N/A 14.0 μg/m3 (13) 8.9 μg/m3 (37) 37.0
 
May 25, 2019, 2 a.m. 4.6 ppb (4) -1.4 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (25) N/A 12.0 μg/m3 (11) 8.4 μg/m3 (35) 35.0
 
May 25, 2019, 1 a.m. 4.3 ppb (4) -1.5 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (25) N/A 11.0 μg/m3 (10) 7.9 μg/m3 (33) 33.0
 
May 25, 2019, midnight 3.8 ppb (4) -1.2 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 34.0 ppb (26) N/A 12.0 μg/m3 (11) 7.8 μg/m3 (32) 32.0
 
May 24, 2019, 11 p.m. 2.9 ppb (3) -1.3 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 37.0 ppb (28) N/A 12.0 μg/m3 (11) 8.5 μg/m3 (35) 35.0
 
May 24, 2019, 10 p.m. 2.4 ppb (2) -1.4 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 39.0 ppb (30) N/A 11.0 μg/m3 (10) 7.6 μg/m3 (32) 32.0
 
May 24, 2019, 9 p.m. 2.7 ppb (3) -1.1 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 40.0 ppb (31) N/A 9.0 μg/m3 (8) 5.8 μg/m3 (24) 31.0
 
May 24, 2019, 8 p.m. 3.4 ppb (3) -0.8 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 39.0 ppb (30) N/A 9.0 μg/m3 (8) 5.2 μg/m3 (22) 30.0
 
May 24, 2019, 7 p.m. 3.6 ppb (3) -0.7 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 37.0 ppb (28) N/A 10.0 μg/m3 (9) 7.2 μg/m3 (30) 30.0
 
May 24, 2019, 6 p.m. 4.8 ppb (4) -0.5 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 32.0 ppb (25) N/A 10.0 μg/m3 (9) 8.0 μg/m3 (33) 33.0
 
May 24, 2019, 5 p.m. 9.8 ppb (9) 0.1 ppb (0) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 12.0 μg/m3 (11) 8.4 μg/m3 (35) 35.0
 
May 24, 2019, 4 p.m. 7.9 ppb (7) -0.3 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 10.0 μg/m3 (9) 7.2 μg/m3 (30) 30.0
 
May 24, 2019, 3 p.m. 6.3 ppb (6) -0.3 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 28.0 ppb (22) N/A 11.0 μg/m3 (10) 7.1 μg/m3 (30) 30.0
 
May 24, 2019, 2 p.m. 6.3 ppb (6) -0.2 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 10.0 μg/m3 (9) 7.3 μg/m3 (30) 30.0
 
May 24, 2019, 1 p.m. 5.9 ppb (5) -0.3 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 10.0 μg/m3 (9) 6.9 μg/m3 (29) 29.0
 
May 24, 2019, noon 7.0 ppb (6) -0.6 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 24.0 ppb (18) N/A 9.0 μg/m3 (8) 5.8 μg/m3 (24) 24.0
 
May 24, 2019, 11 a.m. 6.1 ppb (6) -1.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 22.0 ppb (17) N/A 10.0 μg/m3 (9) 5.4 μg/m3 (23) 23.0
 
May 24, 2019, 10 a.m. 2.3 ppb (2) -1.3 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 29.0 ppb (22) N/A 10.0 μg/m3 (9) 4.5 μg/m3 (19) 22.0
 
May 24, 2019, 9 a.m. 4.5 ppb (4) -1.1 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 9.0 μg/m3 (8) 4.3 μg/m3 (18) 21.0
 
May 24, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 5.2 μg/m3 (22) 22.0
 
May 24, 2019, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 19.0 ppb (15) N/A 12.0 μg/m3 (11) 5.9 μg/m3 (25) 25.0
 
May 24, 2019, 6 a.m. 7.2 ppb (7) -1.1 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 11.0 μg/m3 (10) 6.1 μg/m3 (25) 25.0
 
May 24, 2019, 5 a.m. 3.3 ppb (3) -1.6 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 32.0 ppb (25) N/A 8.0 μg/m3 (7) 3.8 μg/m3 (16) 25.0
 
May 24, 2019, 4 a.m. 3.3 ppb (3) -1.6 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 35.0 ppb (27) N/A 10.0 μg/m3 (9) 4.0 μg/m3 (17) 27.0
 
May 24, 2019, 3 a.m. 8.7 ppb (8) -0.9 ppb (0) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 32.0 ppb (25) N/A 12.0 μg/m3 (11) 5.0 μg/m3 (21) 25.0
 
May 24, 2019, 2 a.m. 9.7 ppb (9) -0.9 ppb (0) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 32.0 ppb (25) N/A 11.0 μg/m3 (10) 4.0 μg/m3 (17) 25.0
 
May 24, 2019, 1 a.m. 10.3 ppb (10) -0.9 ppb (0) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 34.0 ppb (26) N/A 12.0 μg/m3 (11) 3.6 μg/m3 (15) 26.0
 
May 24, 2019, midnight 4.9 ppb (5) -1.1 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 41.0 ppb (32) N/A 11.0 μg/m3 (10) 3.1 μg/m3 (13) 32.0
 
May 23, 2019, 11 p.m. 4.1 ppb (4) -1.1 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 42.0 ppb (32) N/A 12.0 μg/m3 (11) 3.0 μg/m3 (12) 32.0
 
May 23, 2019, 10 p.m. 5.6 ppb (5) -0.5 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 44.0 ppb (34) N/A 12.0 μg/m3 (11) 3.1 μg/m3 (13) 34.0
 
May 23, 2019, 9 p.m. 5.7 ppb (5) -0.4 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 44.0 ppb (34) N/A 11.0 μg/m3 (10) 2.6 μg/m3 (11) 34.0
 
May 23, 2019, 8 p.m. 6.1 ppb (6) -0.3 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 45.0 ppb (35) N/A 12.0 μg/m3 (11) 2.5 μg/m3 (10) 35.0
 
May 23, 2019, 7 p.m. 5.0 ppb (5) -0.5 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 44.0 ppb (34) N/A 11.0 μg/m3 (10) 2.2 μg/m3 (9) 34.0
 
May 23, 2019, 6 p.m. 5.4 ppb (5) -0.2 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 42.0 ppb (32) N/A 8.0 μg/m3 (7) 2.0 μg/m3 (8) 32.0
 
May 23, 2019, 5 p.m. 6.6 ppb (6) 0.1 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 41.0 ppb (32) N/A 8.0 μg/m3 (7) 2.1 μg/m3 (9) 32.0
 
May 23, 2019, 4 p.m. 4.4 ppb (4) -0.5 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 42.0 ppb (32) N/A 9.0 μg/m3 (8) 2.1 μg/m3 (9) 32.0
 
May 23, 2019, 3 p.m. 5.9 ppb (5) 0.2 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 36.0 ppb (28) N/A 9.0 μg/m3 (8) 1.8 μg/m3 (8) 28.0
 
May 23, 2019, 2 p.m. 6.3 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 7.0 μg/m3 (6) 1.8 μg/m3 (8) 24.0
 
May 23, 2019, 1 p.m. 9.5 ppb (9) 1.9 ppb (2) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 11.0 μg/m3 (10) 2.5 μg/m3 (10) 21.0
 
May 23, 2019, noon 12.8 ppb (12) 2.6 ppb (2) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 13.0 μg/m3 (12) 3.5 μg/m3 (15) 18.0
 
May 23, 2019, 11 a.m. 10.4 ppb (10) 0.5 ppb (0) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 21.0 ppb (16) N/A 16.0 μg/m3 (15) 4.6 μg/m3 (19) 19.0
 
May 23, 2019, 10 a.m. 8.7 ppb (8) -0.8 ppb (0) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 22.0 ppb (17) N/A 18.0 μg/m3 (16) 6.4 μg/m3 (27) 27.0
 
May 23, 2019, 9 a.m. 4.7 ppb (4) -0.9 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 29.0 ppb (22) N/A 19.0 μg/m3 (17) 7.8 μg/m3 (32) 32.0
 
May 23, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 8.3 μg/m3 (35) 35.0
 
May 23, 2019, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 40.0 ppb (31) N/A 15.0 μg/m3 (14) 6.7 μg/m3 (28) 31.0
 
May 23, 2019, 6 a.m. 3.2 ppb (3) -1.4 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 41.0 ppb (32) N/A 15.0 μg/m3 (14) 7.0 μg/m3 (29) 32.0
 
May 23, 2019, 5 a.m. 4.5 ppb (4) -1.3 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 42.0 ppb (32) N/A 19.0 μg/m3 (17) 8.9 μg/m3 (37) 37.0
 
May 23, 2019, 4 a.m. 7.1 ppb (7) -1.2 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 39.0 ppb (30) N/A 22.0 μg/m3 (20) 9.6 μg/m3 (40) 40.0
 
May 23, 2019, 3 a.m. 5.5 ppb (5) -1.2 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 44.0 ppb (34) N/A 22.0 μg/m3 (20) 8.9 μg/m3 (37) 37.0
 
May 23, 2019, 2 a.m. 6.8 ppb (6) -1.3 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 46.0 ppb (35) N/A 21.0 μg/m3 (19) 8.9 μg/m3 (37) 37.0
 
May 23, 2019, 1 a.m. 6.2 ppb (6) -1.2 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 50.0 ppb (38) N/A 31.0 μg/m3 (28) 9.2 μg/m3 (38) 38.0
 
May 23, 2019, midnight 6.0 ppb (6) -1.4 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 53.0 ppb (41) N/A 40.0 μg/m3 (36) 8.0 μg/m3 (33) 41.0
 
May 22, 2019, 11 p.m. 4.7 ppb (4) -1.3 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 56.0 ppb (43) N/A 37.0 μg/m3 (34) 7.2 μg/m3 (30) 43.0
 
May 22, 2019, 10 p.m. 5.1 ppb (5) -1.1 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 56.0 ppb (43) N/A 40.0 μg/m3 (36) 7.2 μg/m3 (30) 43.0
 
May 22, 2019, 9 p.m. 7.0 ppb (6) -0.6 ppb (0) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 54.0 ppb (42) N/A 47.0 μg/m3 (43) 8.6 μg/m3 (36) 43.0
 
May 22, 2019, 8 p.m. 6.8 ppb (6) -0.7 ppb (0) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 55.0 ppb (42) N/A 30.0 μg/m3 (27) 9.8 μg/m3 (41) 42.0
 
May 22, 2019, 7 p.m. 5.6 ppb (5) -0.6 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 45.0 ppb (35) N/A 17.0 μg/m3 (15) 9.6 μg/m3 (40) 40.0
 
May 22, 2019, 6 p.m. 5.6 ppb (5) -0.2 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 38.0 ppb (29) N/A 16.0 μg/m3 (15) 10.5 μg/m3 (44) 44.0
 
May 22, 2019, 5 p.m. 6.2 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 19.0 μg/m3 (17) 11.2 μg/m3 (47) 47.0
 
May 22, 2019, 4 p.m. 6.4 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 15.0 μg/m3 (14) 8.8 μg/m3 (37) 37.0
 
May 22, 2019, 3 p.m. 4.6 ppb (4) -0.4 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 28.0 ppb (22) N/A 11.0 μg/m3 (10) 7.2 μg/m3 (30) 30.0
 
May 22, 2019, 2 p.m. 5.4 ppb (5) -0.3 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 28.0 ppb (22) N/A 10.0 μg/m3 (9) 5.7 μg/m3 (24) 24.0
 
May 22, 2019, 1 p.m. 5.1 ppb (5) -0.6 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 29.0 ppb (22) N/A 8.0 μg/m3 (7) 5.2 μg/m3 (22) 22.0
 
May 22, 2019, noon 5.9 ppb (5) -0.7 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 28.0 ppb (22) N/A 9.0 μg/m3 (8) 5.1 μg/m3 (21) 22.0
 
May 22, 2019, 11 a.m. 4.1 ppb (4) -1.2 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 30.0 ppb (23) N/A 8.0 μg/m3 (7) 4.7 μg/m3 (20) 23.0
 
May 22, 2019, 10 a.m. 2.6 ppb (2) -1.3 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (24) N/A 8.0 μg/m3 (7) 4.6 μg/m3 (19) 24.0
 
May 22, 2019, 9 a.m. 2.0 ppb (2) -1.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (25) N/A 8.0 μg/m3 (7) 4.7 μg/m3 (20) 25.0
 
May 22, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 5.0 μg/m3 (21) 21.0
 
May 22, 2019, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A 8.0 μg/m3 (7) 4.7 μg/m3 (20) 25.0
 
May 22, 2019, 6 a.m. 4.1 ppb (4) -1.3 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 9.0 μg/m3 (8) 5.0 μg/m3 (21) 24.0
 
May 22, 2019, 5 a.m. 5.3 ppb (5) -1.2 ppb (0) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 30.0 ppb (23) N/A 10.0 μg/m3 (9) 5.1 μg/m3 (21) 23.0
 
May 22, 2019, 4 a.m. 4.2 ppb (4) -1.3 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 32.0 ppb (25) N/A 10.0 μg/m3 (9) 5.0 μg/m3 (21) 25.0
 
May 22, 2019, 3 a.m. 4.0 ppb (4) -1.2 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 33.0 ppb (25) N/A 10.0 μg/m3 (9) 4.4 μg/m3 (18) 25.0
 
May 22, 2019, 2 a.m. 3.6 ppb (3) -1.2 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 35.0 ppb (27) N/A 9.0 μg/m3 (8) 3.9 μg/m3 (16) 27.0
 
May 22, 2019, 1 a.m. 5.2 ppb (5) -1.1 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (25) N/A 9.0 μg/m3 (8) 4.3 μg/m3 (18) 25.0
 
May 22, 2019, midnight 4.1 ppb (4) -1.3 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 34.0 ppb (26) N/A 9.0 μg/m3 (8) 4.0 μg/m3 (17) 26.0
 
May 21, 2019, 11 p.m. 2.9 ppb (3) -1.3 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (27) N/A 8.0 μg/m3 (7) 3.7 μg/m3 (15) 27.0
 
May 21, 2019, 10 p.m. 4.0 ppb (4) -1.1 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 33.0 ppb (25) N/A 8.0 μg/m3 (7) 3.9 μg/m3 (16) 25.0
 
May 21, 2019, 9 p.m. 4.0 ppb (4) -0.9 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 33.0 ppb (25) N/A 8.0 μg/m3 (7) 4.5 μg/m3 (19) 25.0
 
May 21, 2019, 8 p.m. 3.3 ppb (3) -0.8 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 33.0 ppb (25) N/A 8.0 μg/m3 (7) 5.1 μg/m3 (21) 25.0
 
May 21, 2019, 7 p.m. 5.8 ppb (5) 0.1 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 31.0 ppb (24) N/A 10.0 μg/m3 (9) 5.6 μg/m3 (23) 24.0
 
May 21, 2019, 6 p.m. 6.7 ppb (6) 0.7 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 28.0 ppb (22) N/A N/A N/A 22.0
 
May 21, 2019, 5 p.m. 3.1 ppb (3) -0.7 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 29.0 ppb (22) N/A 7.0 μg/m3 (6) 4.2 μg/m3 (18) 22.0
 
May 21, 2019, 4 p.m. 2.9 ppb (3) -0.6 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 29.0 ppb (22) N/A 8.0 μg/m3 (7) 4.1 μg/m3 (17) 22.0
 
May 21, 2019, 3 p.m. 4.0 ppb (4) -0.4 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 27.0 ppb (21) N/A 7.0 μg/m3 (6) 4.0 μg/m3 (17) 21.0
 
May 21, 2019, 2 p.m. 2.2 ppb (2) -0.9 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A 5.0 μg/m3 (5) 3.0 μg/m3 (12) 12.0
 
May 21, 2019, 1 p.m. 2.5 ppb (2) -0.8 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (22) N/A 5.0 μg/m3 (5) 2.5 μg/m3 (10) 22.0
 
May 21, 2019, noon 3.5 ppb (3) -0.6 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (22) N/A 5.0 μg/m3 (5) 2.4 μg/m3 (10) 22.0
 
May 21, 2019, 11 a.m. 3.4 ppb (3) -1.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 5.0 μg/m3 (5) 2.0 μg/m3 (8) 21.0
 
May 21, 2019, 10 a.m. 2.4 ppb (2) -1.2 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (22) N/A 3.0 μg/m3 (3) 1.7 μg/m3 (7) 22.0
 
May 21, 2019, 9 a.m. 2.7 ppb (3) -1.1 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (22) N/A 3.0 μg/m3 (3) 1.5 μg/m3 (6) 22.0
 
May 21, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 3.7 μg/m3 (15) 15.0
 
May 21, 2019, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 2.0 ppb (2) N/A 13.0 μg/m3 (12) 6.0 μg/m3 (25) 25.0
 
May 21, 2019, 6 a.m. 65.9 ppb (63) 37.9 ppb (35) N/A 28.0 ppb (26) N/A 1.0 ppb (1) 1.0 ppb (1) N/A 13.0 μg/m3 (12) 5.8 μg/m3 (24) 63.0
 
May 21, 2019, 5 a.m. 56.7 ppb (53) 30.4 ppb (28) N/A 26.0 ppb (24) N/A 1.0 ppb (1) 1.0 ppb (1) N/A 12.0 μg/m3 (11) 5.1 μg/m3 (21) 53.0
 
May 21, 2019, 4 a.m. 19.8 ppb (18) 0.7 ppb (1) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 9.0 ppb (7) N/A 8.0 μg/m3 (7) 3.7 μg/m3 (15) 18.0
 
May 21, 2019, 3 a.m. 10.8 ppb (10) -0.8 ppb (0) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 20.0 ppb (15) N/A 6.0 μg/m3 (5) 3.1 μg/m3 (13) 15.0
 
May 21, 2019, 2 a.m. 8.0 ppb (7) -1.0 ppb (0) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 24.0 ppb (18) N/A 4.0 μg/m3 (4) 2.4 μg/m3 (10) 18.0
 
May 21, 2019, 1 a.m. 5.3 ppb (5) -1.1 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 4.0 μg/m3 (4) 2.1 μg/m3 (9) 21.0
 
May 21, 2019, midnight 4.3 ppb (4) -1.1 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 29.0 ppb (22) N/A 3.0 μg/m3 (3) 1.9 μg/m3 (8) 22.0
 
May 20, 2019, 11 p.m. 2.3 ppb (2) -1.2 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (24) N/A 4.0 μg/m3 (4) 1.9 μg/m3 (8) 24.0
 
May 20, 2019, 10 p.m. 1.6 ppb (1) -1.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (26) N/A 3.0 μg/m3 (3) 1.7 μg/m3 (7) 26.0
 
May 20, 2019, 9 p.m. 1.5 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 35.0 ppb (27) N/A 4.0 μg/m3 (4) 1.8 μg/m3 (8) 27.0
 
May 20, 2019, 8 p.m. 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (26) N/A 4.0 μg/m3 (4) 1.5 μg/m3 (6) 26.0
 
May 20, 2019, 7 p.m. 2.2 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (25) N/A 5.0 μg/m3 (5) 1.7 μg/m3 (7) 25.0
 
May 20, 2019, 6 p.m. 1.9 ppb (2) -0.9 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (23) N/A 4.0 μg/m3 (4) 2.3 μg/m3 (10) 23.0
 
May 20, 2019, 5 p.m. 3.1 ppb (3) -0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 27.0 ppb (21) N/A 6.0 μg/m3 (5) 2.4 μg/m3 (10) 21.0
 
May 20, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 5.0 μg/m3 (5) 2.0 μg/m3 (8) 18.0
 
May 20, 2019, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (17) N/A 4.0 μg/m3 (4) 1.3 μg/m3 (5) 17.0
 
May 20, 2019, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 21.0 ppb (16) N/A 4.0 μg/m3 (4) 0.9 μg/m3 (4) 16.0
 
May 20, 2019, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (15) N/A 4.0 μg/m3 (4) 1.0 μg/m3 (4) 15.0
 
May 20, 2019, noon 5.7 ppb (5) 0.2 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 19.0 ppb (15) N/A 4.0 μg/m3 (4) 1.2 μg/m3 (5) 15.0
 
May 20, 2019, 11 a.m. 3.9 ppb (4) -0.6 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 21.0 ppb (16) N/A 4.0 μg/m3 (4) 0.8 μg/m3 (3) 16.0
 
May 20, 2019, 10 a.m. 2.4 ppb (2) -1.2 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 22.0 ppb (17) N/A 2.0 μg/m3 (2) 0.7 μg/m3 (3) 17.0
 
May 20, 2019, 9 a.m. 1.5 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 2.0 μg/m3 (2) 1.3 μg/m3 (5) 18.0
 
May 20, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 2.0 μg/m3 (8) 8.0
 
May 20, 2019, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 21.0 ppb (16) N/A 4.0 μg/m3 (4) 1.7 μg/m3 (7) 16.0
 
May 20, 2019, 6 a.m. 1.2 ppb (1) -1.5 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 21.0 ppb (16) N/A 3.0 μg/m3 (3) 1.6 μg/m3 (7) 16.0
 
May 20, 2019, 5 a.m. 1.8 ppb (2) -1.4 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (17) N/A 2.0 μg/m3 (2) 1.0 μg/m3 (4) 17.0
 
May 20, 2019, 4 a.m. 1.9 ppb (2) -1.3 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 4.0 μg/m3 (4) 1.2 μg/m3 (5) 18.0
 
May 20, 2019, 3 a.m. 2.3 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (19) N/A 5.0 μg/m3 (5) 1.3 μg/m3 (5) 19.0
 
May 20, 2019, 2 a.m. 2.3 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (19) N/A 6.0 μg/m3 (5) 1.5 μg/m3 (6) 19.0
 
May 20, 2019, 1 a.m. 2.8 ppb (3) -1.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 23.0 ppb (18) N/A 7.0 μg/m3 (6) 2.2 μg/m3 (9) 18.0
 
May 20, 2019, midnight 3.2 ppb (3) -0.9 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 9.0 μg/m3 (8) 2.6 μg/m3 (11) 20.0
 
May 19, 2019, 11 p.m. 3.3 ppb (3) -1.1 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 36.0 ppb (28) N/A 9.0 μg/m3 (8) 2.7 μg/m3 (11) 28.0
 
May 19, 2019, 10 p.m. 3.7 ppb (3) -0.9 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 8.0 μg/m3 (7) 2.8 μg/m3 (12) 33.0
 
May 19, 2019, 9 p.m. 3.9 ppb (4) -0.9 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 46.0 ppb (35) N/A 9.0 μg/m3 (8) 2.5 μg/m3 (10) 35.0
 
May 19, 2019, 8 p.m. 2.8 ppb (3) -1.2 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 54.0 ppb (42) N/A 7.0 μg/m3 (6) 2.4 μg/m3 (10) 42.0
 
May 19, 2019, 7 p.m. 3.8 ppb (4) -0.9 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 59.0 ppb (45) N/A 7.0 μg/m3 (6) 2.8 μg/m3 (12) 45.0
 
May 19, 2019, 6 p.m. 4.8 ppb (4) -0.7 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 45.0 ppb (35) N/A 12.0 μg/m3 (11) 6.7 μg/m3 (28) 35.0
 
May 19, 2019, 5 p.m. 5.1 ppb (5) -0.1 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 28.0 ppb (22) N/A 13.0 μg/m3 (12) 9.1 μg/m3 (38) 38.0
 
May 19, 2019, 4 p.m. 4.6 ppb (4) -0.1 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 14.0 μg/m3 (13) 9.0 μg/m3 (38) 38.0
 
May 19, 2019, 3 p.m. 5.9 ppb (5) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 22.0 ppb (17) N/A 14.0 μg/m3 (13) 9.4 μg/m3 (39) 39.0
 
May 19, 2019, 2 p.m. 6.9 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 20.0 ppb (15) N/A 18.0 μg/m3 (16) 11.5 μg/m3 (48) 48.0
 
May 19, 2019, 1 p.m. 6.8 ppb (6) 0.2 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 19.0 ppb (15) N/A 17.0 μg/m3 (15) 10.6 μg/m3 (44) 44.0
 
May 19, 2019, noon 4.2 ppb (4) -0.7 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 24.0 ppb (18) N/A 13.0 μg/m3 (12) 8.7 μg/m3 (36) 36.0
 
May 19, 2019, 11 a.m. 3.5 ppb (3) -1.1 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 22.0 ppb (17) N/A 11.0 μg/m3 (10) 7.7 μg/m3 (32) 32.0
 
May 19, 2019, 10 a.m. 2.4 ppb (2) -1.3 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 24.0 ppb (18) N/A 10.0 μg/m3 (9) 6.8 μg/m3 (28) 28.0
 
May 19, 2019, 9 a.m. 2.2 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 24.0 ppb (18) N/A 8.0 μg/m3 (7) 5.5 μg/m3 (23) 23.0
 
May 19, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 5.3 μg/m3 (22) 22.0
 
May 19, 2019, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (19) N/A 8.0 μg/m3 (7) 5.3 μg/m3 (22) 22.0
 
May 19, 2019, 6 a.m. 1.2 ppb (1) -1.5 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (19) N/A 8.0 μg/m3 (7) 5.1 μg/m3 (21) 21.0
 
May 19, 2019, 5 a.m. 1.1 ppb (1) -1.5 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 7.0 μg/m3 (6) 4.5 μg/m3 (19) 20.0
 
May 19, 2019, 4 a.m. 1.6 ppb (1) -1.4 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 7.0 μg/m3 (6) 4.3 μg/m3 (18) 20.0
 
May 19, 2019, 3 a.m. 1.8 ppb (2) -1.3 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (21) N/A 9.0 μg/m3 (8) 5.3 μg/m3 (22) 22.0
 
May 19, 2019, 2 a.m. 1.7 ppb (2) -1.4 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 28.0 ppb (22) N/A 14.0 μg/m3 (13) 7.9 μg/m3 (33) 33.0
 
May 19, 2019, 1 a.m. 2.0 ppb (2) -1.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) N/A 13.0 μg/m3 (12) 7.6 μg/m3 (32) 32.0
 
May 19, 2019, midnight 2.7 ppb (3) -1.3 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 25.0 ppb (19) N/A 13.0 μg/m3 (12) 9.6 μg/m3 (40) 40.0
 
May 18, 2019, 11 p.m. 4.7 ppb (4) -0.6 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 22.0 ppb (17) N/A 19.0 μg/m3 (17) 13.4 μg/m3 (53) 53.0
 
May 18, 2019, 10 p.m. 6.8 ppb (6) -0.1 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 21.0 ppb (16) N/A 17.0 μg/m3 (15) 11.5 μg/m3 (48) 48.0
 
May 18, 2019, 9 p.m. 10.9 ppb (10) 0.7 ppb (1) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 21.0 ppb (16) N/A 17.0 μg/m3 (15) 11.1 μg/m3 (46) 46.0