ID: 381

AQSQID: 181270024

Site Name: Ogden Dunes

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

Updated: May 13, 2021, 11:46 a.m.

Location: Portage (Diana Rd), IN

Reporting: True, Located: True

Current AQI: 0.0

Portage (Diana Rd) IN, US: 41.6175, -87.1992

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 6, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A 3.1 μg/m3 (13) 16.0
 
May 6, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A N/A 4.2 μg/m3 (18) 18.0
 
May 6, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 4.2 μg/m3 (18) 18.0
 
May 6, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 7.2 μg/m3 (31) 31.0
 
May 6, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) N/A N/A 6.8 μg/m3 (29) 29.0
 
May 6, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) N/A N/A 10.7 μg/m3 (45) 45.0
 
May 6, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A N/A 14.5 μg/m3 (57) 57.0
 
May 6, 2021, midnight N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 4.3 μg/m3 (18) 26.0
 
May 5, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A N/A 32.0
 
May 5, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 0.1 μg/m3 (1) 34.0
 
May 5, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 1.4 μg/m3 (6) 33.0
 
May 5, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 1.7 μg/m3 (8) 33.0
 
May 5, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A -0.1 μg/m3 (0) 31.0
 
May 5, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 0.0 μg/m3 (0) 30.0
 
May 5, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 0.6 μg/m3 (3) 28.0
 
May 5, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 1.1 μg/m3 (5) 28.0
 
May 5, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 1.1 μg/m3 (5) 28.0
 
May 5, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 1.5 μg/m3 (7) 27.0
 
May 5, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 0.3 μg/m3 (2) 27.0
 
May 5, 2021, noon N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 0.2 μg/m3 (1) 25.0
 
May 5, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.7 μg/m3 (3) 3.0
 
May 5, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 0.0
May 5, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A -1.0 μg/m3 (0) 25.0
 
May 5, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 0.0 μg/m3 (0) 26.0
 
May 5, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 0.0 μg/m3 (0) 27.0
 
May 5, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A -0.1 μg/m3 (0) 26.0
 
May 5, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 0.6 μg/m3 (3) 25.0
 
May 5, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 1.7 μg/m3 (8) 25.0
 
May 5, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 2.2 μg/m3 (10) 26.0
 
May 5, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 1.0 μg/m3 (5) 25.0
 
May 5, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 1.9 μg/m3 (8) 26.0
 
May 5, 2021, midnight N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 3.7 μg/m3 (16) 26.0
 
May 4, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A N/A 25.0
 
May 4, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A -0.9 μg/m3 (0) 27.0
 
May 4, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 0.3 μg/m3 (2) 26.0
 
May 4, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 1.9 μg/m3 (8) 25.0
 
May 4, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 1.3 μg/m3 (6) 28.0
 
May 4, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 2.0 μg/m3 (9) 27.0
 
May 4, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 1.2 μg/m3 (5) 26.0
 
May 4, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.3 μg/m3 (2) 2.0
 
May 4, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 1.4 μg/m3 (6) 25.0
 
May 4, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 1.3 μg/m3 (6) 24.0
 
May 4, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 1.1 μg/m3 (5) 24.0
 
May 4, 2021, noon N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 3.1 μg/m3 (13) 25.0
 
May 4, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 2.9 μg/m3 (13) 24.0
 
May 4, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 0.7 μg/m3 (3) 24.0
 
May 4, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 2.5 μg/m3 (11) 24.0
 
May 4, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 2.4 μg/m3 (10) 25.0
 
May 4, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A -0.1 μg/m3 (0) 25.0
 
May 4, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 0.1 μg/m3 (1) 26.0
 
May 4, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 4.1 μg/m3 (18) 32.0
 
May 4, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 6.6 μg/m3 (28) 28.0
 
May 4, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 8.6 μg/m3 (36) 36.0
 
May 4, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A 8.8 μg/m3 (37) 37.0
 
May 4, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 5.1 μg/m3 (22) 22.0
 
May 4, 2021, midnight N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 5.1 μg/m3 (22) 24.0
 
May 3, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A N/A 25.0
 
May 3, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 4.4 μg/m3 (19) 27.0
 
May 3, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 4.6 μg/m3 (20) 28.0
 
May 3, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 5.3 μg/m3 (23) 31.0
 
May 3, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 4.5 μg/m3 (19) 32.0
 
May 3, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 6.1 μg/m3 (26) 31.0
 
May 3, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 4.8 μg/m3 (20) 30.0
 
May 3, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 4.3 μg/m3 (18) 27.0
 
May 3, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 5.4 μg/m3 (23) 25.0
 
May 3, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 6.7 μg/m3 (28) 28.0
 
May 3, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A 4.8 μg/m3 (20) 23.0
 
May 3, 2021, noon N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 5.4 μg/m3 (23) 24.0
 
May 3, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 5.9 μg/m3 (25) 25.0
 
May 3, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 6.6 μg/m3 (28) 28.0
 
May 3, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 6.3 μg/m3 (27) 29.0
 
May 3, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 8.0 μg/m3 (34) 34.0
 
May 3, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 2.9 μg/m3 (13) 28.0
 
May 3, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 2.8 μg/m3 (12) 31.0
 
May 3, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 2.9 μg/m3 (13) 32.0
 
May 3, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 4.9 μg/m3 (21) 33.0
 
May 3, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 6.0 μg/m3 (25) 35.0
 
May 3, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 2.3 μg/m3 (10) 37.0
 
May 3, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 2.0 μg/m3 (9) 36.0
 
May 3, 2021, midnight N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 2.3 μg/m3 (10) 37.0
 
May 2, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A N/A 38.0
 
May 2, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 8.0 μg/m3 (34) 46.0
 
May 2, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 5.3 μg/m3 (23) 46.0
 
May 2, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 5.0 μg/m3 (21) 46.0
 
May 2, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 4.0 μg/m3 (17) 44.0
 
May 2, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
May 2, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A N/A 43.0
 
May 2, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 7.7 μg/m3 (33) 42.0
 
May 2, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 4.9 μg/m3 (21) 40.0
 
May 2, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 4.8 μg/m3 (20) 37.0
 
May 2, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 3.4 μg/m3 (15) 32.0
 
May 2, 2021, noon N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 3.0 μg/m3 (13) 29.0
 
May 2, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 2.6 μg/m3 (11) 27.0
 
May 2, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.1 μg/m3 (5) 5.0
 
May 2, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 2.9 μg/m3 (13) 29.0
 
May 2, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 4.5 μg/m3 (19) 30.0
 
May 2, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 6.1 μg/m3 (26) 30.0
 
May 2, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 8.0 μg/m3 (34) 34.0
 
May 2, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 5.7 μg/m3 (24) 37.0
 
May 2, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 4.7 μg/m3 (20) 38.0
 
May 2, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 5.5 μg/m3 (23) 37.0
 
May 2, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 2.0 μg/m3 (9) 38.0
 
May 2, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 5.1 μg/m3 (22) 44.0
 
May 2, 2021, midnight N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A N/A 7.5 μg/m3 (32) 47.0
 
May 1, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A N/A 55.0
 
May 1, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A N/A 6.4 μg/m3 (27) 61.0
 
May 1, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A 4.6 μg/m3 (20) 58.0
 
May 1, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A N/A 5.6 μg/m3 (24) 61.0
 
May 1, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A 5.0 μg/m3 (21) 50.0
 
May 1, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A N/A 3.5 μg/m3 (15) 47.0
 
May 1, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 3.0 μg/m3 (13) 44.0
 
May 1, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 3.4 μg/m3 (15) 39.0
 
May 1, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 0.6 μg/m3 (3) 38.0
 
May 1, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 0.3 μg/m3 (2) 34.0
 
May 1, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 0.6 μg/m3 (3) 30.0
 
May 1, 2021, noon N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 2.5 μg/m3 (11) 26.0
 
May 1, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 2.6 μg/m3 (11) 25.0
 
May 1, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 1.1 μg/m3 (5) 25.0
 
May 1, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 1.8 μg/m3 (8) 25.0
 
May 1, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 2.3 μg/m3 (10) 25.0
 
May 1, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A N/A 3.2 μg/m3 (14) 14.0
 
May 1, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 5.4 μg/m3 (23) 23.0
 
May 1, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) N/A N/A 5.9 μg/m3 (25) 25.0
 
May 1, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) N/A N/A 6.0 μg/m3 (25) 25.0
 
May 1, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) N/A N/A 6.1 μg/m3 (26) 26.0
 
May 1, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 3.9 μg/m3 (17) 19.0
 
May 1, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 3.4 μg/m3 (15) 21.0
 
May 1, 2021, midnight N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 4.8 μg/m3 (20) 26.0
 
April 30, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A N/A 32.0
 
April 30, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A -2.6 μg/m3 (0) 0.0
April 30, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
April 30, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 2.3 μg/m3 (10) 34.0
 
April 30, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 2.6 μg/m3 (11) 33.0
 
April 30, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 1.2 μg/m3 (5) 33.0
 
April 30, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 2.3 μg/m3 (10) 31.0
 
April 30, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 1.0 μg/m3 (5) 31.0
 
April 30, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 2.0 μg/m3 (9) 33.0
 
April 30, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 4.5 μg/m3 (19) 36.0
 
April 30, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 7.1 μg/m3 (30) 30.0
 
April 30, 2021, noon N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 10.1 μg/m3 (43) 43.0
 
April 30, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A N/A 6.9 μg/m3 (29) 29.0
 
April 30, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 5.2 μg/m3 (22) 22.0
 
April 30, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 5.8 μg/m3 (25) 25.0
 
April 30, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A 4.7 μg/m3 (20) 20.0
 
April 30, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 4.5 μg/m3 (19) 29.0
 
April 30, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 2.8 μg/m3 (12) 38.0
 
April 30, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 4.9 μg/m3 (21) 38.0
 
April 30, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 7.8 μg/m3 (33) 33.0
 
April 30, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.3 μg/m3 (35) 35.0
 
April 30, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A N/A 23.0
 
April 30, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 8.1 μg/m3 (34) 34.0
 
April 30, 2021, midnight N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A 6.9 μg/m3 (29) 29.0
 
April 29, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A N/A 31.0
 
April 29, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 5.2 μg/m3 (22) 38.0
 
April 29, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 2.4 μg/m3 (10) 42.0
 
April 29, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 2.8 μg/m3 (12) 40.0
 
April 29, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 2.9 μg/m3 (13) 38.0
 
April 29, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 2.0 μg/m3 (9) 32.0
 
April 29, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 3.5 μg/m3 (15) 29.0
 
April 29, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 4.3 μg/m3 (18) 27.0
 
April 29, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 3.0 μg/m3 (13) 28.0
 
April 29, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 5.4 μg/m3 (23) 28.0
 
April 29, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 6.1 μg/m3 (26) 30.0
 
April 29, 2021, noon N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 6.0 μg/m3 (25) 31.0
 
April 29, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 5.2 μg/m3 (22) 31.0
 
April 29, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 5.3 μg/m3 (23) 29.0
 
April 29, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 4.5 μg/m3 (19) 31.0
 
April 29, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 2.8 μg/m3 (12) 31.0