ID: 529

AQSQID: 290770036

Site Name: Hillcrest Hs

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

Updated: May 17, 2021, 10:49 p.m.

Location: Springfield (W Smith St), MO

Reporting: True, Located: True

Current AQI: 28.0

Springfield (W Smith St) MO, US: 37.256069, -93.299692

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 17, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 7.0 μg/m3 (7) -3.4 μg/m3 (0) 28.0
 
May 17, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 9.0 μg/m3 (9) 2.9 μg/m3 (13) 30.0
 
May 17, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 5.0 μg/m3 (5) 6.2 μg/m3 (26) 32.0
 
May 17, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 3.0 μg/m3 (3) 0.8 μg/m3 (4) 34.0
 
May 17, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 4.0 μg/m3 (4) 2.8 μg/m3 (12) 36.0
 
May 17, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 3.0 μg/m3 (3) -0.6 μg/m3 (0) 38.0
 
May 17, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 2.0 μg/m3 (2) 3.9 μg/m3 (17) 36.0
 
May 17, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 3.0 μg/m3 (3) -3.7 μg/m3 (0) 30.0
 
May 17, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 5.0 μg/m3 (5) 6.0 μg/m3 (25) 30.0
 
May 17, 2021, noon N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 7.0 μg/m3 (7) 0.3 μg/m3 (2) 28.0
 
May 17, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 11.0 μg/m3 (11) 9.8 μg/m3 (41) 41.0
 
May 17, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 11.0 μg/m3 (11) 12.2 μg/m3 (52) 52.0
 
May 17, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 13.0 μg/m3 (13) 1.6 μg/m3 (7) 35.0
 
May 17, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 10.0 μg/m3 (10) 7.0 μg/m3 (30) 37.0
 
May 17, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 11.0 μg/m3 (11) 12.0 μg/m3 (50) 50.0
 
May 17, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 13.0 μg/m3 (13) 16.1 μg/m3 (60) 60.0
 
May 17, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 18.0 μg/m3 (17) 13.6 μg/m3 (55) 55.0
 
May 17, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 16.0 μg/m3 (15) 10.0 μg/m3 (42) 42.0
 
May 17, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 16.0 μg/m3 (15) 8.7 μg/m3 (37) 38.0
 
May 17, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 16.0 μg/m3 (15) 13.1 μg/m3 (54) 54.0
 
May 17, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 17.0 μg/m3 (16) 12.7 μg/m3 (53) 53.0
 
May 17, 2021, midnight N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 17.0 μg/m3 (16) 19.2 μg/m3 (66) 66.0
 
May 16, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 15.0 μg/m3 (14) 12.0 μg/m3 (50) 50.0
 
May 16, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 16.0 μg/m3 (15) 13.4 μg/m3 (54) 54.0
 
May 16, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 15.0 μg/m3 (14) 17.9 μg/m3 (64) 64.0
 
May 16, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 15.0 μg/m3 (14) 11.2 μg/m3 (47) 47.0
 
May 16, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 15.0 μg/m3 (14) 16.6 μg/m3 (61) 61.0
 
May 16, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 16.0 μg/m3 (15) 7.0 μg/m3 (30) 41.0
 
May 16, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 16.0 μg/m3 (15) 3.5 μg/m3 (15) 41.0
 
May 16, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 16.0 μg/m3 (15) 5.4 μg/m3 (23) 39.0
 
May 16, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 17.0 μg/m3 (16) 3.4 μg/m3 (15) 37.0
 
May 16, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 16.0 μg/m3 (15) 3.5 μg/m3 (15) 30.0
 
May 16, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 15.0 μg/m3 (14) 12.5 μg/m3 (52) 52.0
 
May 16, 2021, noon N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 15.0 μg/m3 (14) 13.0 μg/m3 (53) 53.0
 
May 16, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 14.0 μg/m3 (13) 8.4 μg/m3 (36) 36.0
 
May 16, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 13.0 μg/m3 (13) 11.2 μg/m3 (47) 47.0
 
May 16, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 14.0 μg/m3 (13) 13.4 μg/m3 (54) 54.0
 
May 16, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 13.0 μg/m3 (13) 16.0 μg/m3 (60) 60.0
 
May 16, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 12.0 μg/m3 (12) 6.3 μg/m3 (27) 28.0
 
May 16, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 12.0 μg/m3 (12) 6.6 μg/m3 (28) 28.0
 
May 16, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 11.0 μg/m3 (11) 7.4 μg/m3 (31) 31.0
 
May 16, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 11.0 μg/m3 (11) 15.5 μg/m3 (59) 59.0
 
May 16, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 11.0 μg/m3 (11) 16.0 μg/m3 (60) 60.0
 
May 16, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 12.0 μg/m3 (12) 0.5 μg/m3 (3) 31.0
 
May 16, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 10.0 μg/m3 (10) 11.1 μg/m3 (47) 47.0
 
May 16, 2021, midnight N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 10.0 μg/m3 (10) 6.2 μg/m3 (26) 30.0
 
May 15, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 9.0 μg/m3 (9) 2.0 μg/m3 (9) 30.0
 
May 15, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 11.0 μg/m3 (11) 6.8 μg/m3 (29) 29.0
 
May 15, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 10.0 μg/m3 (10) N/A 32.0
 
May 15, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 9.0 μg/m3 (9) 8.4 μg/m3 (36) 36.0
 
May 15, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 7.0 μg/m3 (7) 10.0 μg/m3 (42) 42.0
 
May 15, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 11.0 μg/m3 (11) 17.5 μg/m3 (63) 63.0
 
May 15, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 14.0 μg/m3 (13) 8.3 μg/m3 (35) 35.0
 
May 15, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 14.0 μg/m3 (13) 6.9 μg/m3 (29) 37.0
 
May 15, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 14.0 μg/m3 (13) -1.0 μg/m3 (0) 38.0
 
May 15, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 15.0 μg/m3 (14) 10.5 μg/m3 (44) 44.0
 
May 15, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 11.0 μg/m3 (11) 0.4 μg/m3 (2) 38.0
 
May 15, 2021, noon N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 12.0 μg/m3 (12) -2.9 μg/m3 (0) 39.0
 
May 15, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 13.0 μg/m3 (13) -0.8 μg/m3 (0) 39.0
 
May 15, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 13.0 μg/m3 (13) 8.9 μg/m3 (38) 40.0
 
May 15, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 11.0 μg/m3 (11) 11.4 μg/m3 (48) 48.0
 
May 15, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 12.0 μg/m3 (12) 6.4 μg/m3 (27) 38.0
 
May 15, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 11.0 μg/m3 (11) -1.5 μg/m3 (0) 38.0
 
May 15, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 12.0 μg/m3 (12) 8.7 μg/m3 (37) 39.0
 
May 15, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 13.0 μg/m3 (13) 9.3 μg/m3 (39) 39.0
 
May 15, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 14.0 μg/m3 (13) 3.7 μg/m3 (16) 39.0
 
May 15, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 15.0 μg/m3 (14) 7.4 μg/m3 (31) 34.0
 
May 15, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 24.0 μg/m3 (23) 3.8 μg/m3 (16) 26.0
 
May 15, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 14.0 μg/m3 (13) 0.6 μg/m3 (3) 32.0
 
May 15, 2021, midnight N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 12.0 μg/m3 (12) 9.6 μg/m3 (40) 40.0
 
May 14, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 11.0 μg/m3 (11) 9.2 μg/m3 (39) 41.0
 
May 14, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 11.0 μg/m3 (11) 0.3 μg/m3 (2) 44.0
 
May 14, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 12.0 μg/m3 (12) 4.1 μg/m3 (18) 45.0
 
May 14, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 12.0 μg/m3 (12) 2.4 μg/m3 (10) 44.0
 
May 14, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 12.0 μg/m3 (12) 2.5 μg/m3 (11) 43.0
 
May 14, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 12.0 μg/m3 (12) 6.5 μg/m3 (28) 43.0
 
May 14, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 13.0 μg/m3 (13) -3.3 μg/m3 (0) 44.0
 
May 14, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 14.0 μg/m3 (13) 9.1 μg/m3 (38) 44.0
 
May 14, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 14.0 μg/m3 (13) 12.1 μg/m3 (51) 51.0
 
May 14, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 17.0 μg/m3 (16) 4.0 μg/m3 (17) 41.0
 
May 14, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 19.0 μg/m3 (18) 2.4 μg/m3 (10) 37.0
 
May 14, 2021, noon N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 20.0 μg/m3 (19) 0.8 μg/m3 (4) 34.0
 
May 14, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 16.0 μg/m3 (15) 5.6 μg/m3 (24) 32.0
 
May 14, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 12.0 μg/m3 (12) -3.1 μg/m3 (0) 32.0
 
May 14, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 10.0 μg/m3 (10) 7.7 μg/m3 (33) 34.0
 
May 14, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 11.0 μg/m3 (11) N/A 34.0
 
May 14, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 10.0 μg/m3 (10) 3.1 μg/m3 (13) 34.0
 
May 14, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A 14.0 μg/m3 (13) 4.9 μg/m3 (21) 21.0
 
May 14, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) N/A 17.0 μg/m3 (16) 1.5 μg/m3 (7) 16.0
 
May 14, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A 15.0 μg/m3 (14) 4.3 μg/m3 (18) 18.0
 
May 14, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 16.0 μg/m3 (15) 8.0 μg/m3 (34) 34.0
 
May 14, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 25.0 μg/m3 (24) 2.9 μg/m3 (13) 24.0
 
May 14, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 17.0 μg/m3 (16) 13.1 μg/m3 (54) 54.0
 
May 14, 2021, midnight N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 12.0 μg/m3 (12) 6.1 μg/m3 (26) 44.0
 
May 13, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 10.0 μg/m3 (10) 6.2 μg/m3 (26) 46.0
 
May 13, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 9.0 μg/m3 (9) 1.2 μg/m3 (5) 47.0
 
May 13, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 9.0 μg/m3 (9) -2.8 μg/m3 (0) 46.0
 
May 13, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 10.0 μg/m3 (10) 2.4 μg/m3 (10) 44.0
 
May 13, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 8.0 μg/m3 (8) 6.3 μg/m3 (27) 43.0
 
May 13, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 8.0 μg/m3 (8) 0.7 μg/m3 (3) 43.0
 
May 13, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 8.0 μg/m3 (8) 9.3 μg/m3 (39) 42.0
 
May 13, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 9.0 μg/m3 (9) 2.3 μg/m3 (10) 41.0
 
May 13, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 10.0 μg/m3 (10) 3.1 μg/m3 (13) 39.0
 
May 13, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 10.0 μg/m3 (10) -0.1 μg/m3 (0) 38.0
 
May 13, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 15.0 μg/m3 (14) 6.9 μg/m3 (29) 30.0
 
May 13, 2021, noon N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A 21.0 μg/m3 (20) 3.3 μg/m3 (14) 20.0
 
May 13, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A 12.0 μg/m3 (12) 0.4 μg/m3 (2) 12.0
 
May 13, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) N/A 8.0 μg/m3 (8) 3.9 μg/m3 (17) 17.0
 
May 13, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A 6.0 μg/m3 (6) 4.3 μg/m3 (18) 18.0
 
May 13, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A 6.0 μg/m3 (6) 5.6 μg/m3 (24) 24.0
 
May 13, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A 6.0 μg/m3 (6) 7.9 μg/m3 (33) 33.0
 
May 13, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 6.0 μg/m3 (6) 0.8 μg/m3 (4) 23.0
 
May 13, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 7.0 μg/m3 (7) 3.2 μg/m3 (14) 25.0
 
May 13, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 7.0 μg/m3 (7) 4.4 μg/m3 (19) 19.0
 
May 13, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A 9.0 μg/m3 (9) -1.3 μg/m3 (0) 18.0
 
May 13, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 9.0 μg/m3 (9) 5.4 μg/m3 (23) 23.0
 
May 13, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 8.0 μg/m3 (8) 3.7 μg/m3 (16) 33.0
 
May 13, 2021, midnight N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 9.0 μg/m3 (9) 5.9 μg/m3 (25) 40.0
 
May 12, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 7.0 μg/m3 (7) 7.8 μg/m3 (33) 43.0
 
May 12, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 5.0 μg/m3 (5) 8.3 μg/m3 (35) 44.0
 
May 12, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 7.0 μg/m3 (7) 0.3 μg/m3 (2) 43.0
 
May 12, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 17.0 μg/m3 (16) 3.4 μg/m3 (15) 40.0
 
May 12, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 4.0 μg/m3 (4) 9.6 μg/m3 (40) 41.0
 
May 12, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 3.0 μg/m3 (3) 14.6 μg/m3 (57) 57.0
 
May 12, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A -1.7 μg/m3 (0) 0.0
May 12, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 11.0 μg/m3 (11) -3.8 μg/m3 (0) 32.0
 
May 12, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 9.0 μg/m3 (9) 6.2 μg/m3 (26) 29.0
 
May 12, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 7.0 μg/m3 (7) 0.6 μg/m3 (3) 27.0
 
May 12, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 10.0 μg/m3 (10) 1.5 μg/m3 (7) 26.0
 
May 12, 2021, noon N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 11.0 μg/m3 (11) 3.5 μg/m3 (15) 26.0
 
May 12, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 9.0 μg/m3 (9) 2.6 μg/m3 (11) 28.0
 
May 12, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 7.0 μg/m3 (7) 5.4 μg/m3 (23) 30.0
 
May 12, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 6.0 μg/m3 (6) 2.8 μg/m3 (12) 32.0
 
May 12, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 6.0 μg/m3 (6) 7.1 μg/m3 (30) 32.0
 
May 12, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 7.0 μg/m3 (7) 7.5 μg/m3 (32) 32.0
 
May 12, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 6.0 μg/m3 (6) 4.7 μg/m3 (20) 32.0
 
May 12, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 7.0 μg/m3 (7) -0.1 μg/m3 (0) 32.0
 
May 12, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 9.0 μg/m3 (9) 10.4 μg/m3 (44) 44.0
 
May 12, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 13.0 μg/m3 (13) 18.0 μg/m3 (64) 64.0
 
May 12, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 16.0 μg/m3 (15) 4.8 μg/m3 (20) 33.0
 
May 12, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 15.0 μg/m3 (14) 3.2 μg/m3 (14) 33.0
 
May 12, 2021, midnight N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 15.0 μg/m3 (14) 5.9 μg/m3 (25) 34.0
 
May 11, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 13.0 μg/m3 (13) 2.0 μg/m3 (9) 37.0
 
May 11, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 15.0 μg/m3 (14) 11.5 μg/m3 (48) 48.0
 
May 11, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 17.0 μg/m3 (16) N/A 41.0
 
May 11, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 18.0 μg/m3 (17) 0.0 μg/m3 (0) 42.0
 
May 11, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 13.0 μg/m3 (13) 0.0 μg/m3 (0) 41.0
 
May 11, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 10.0 μg/m3 (10) -0.5 μg/m3 (0) 42.0
 
May 11, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 13.0 μg/m3 (13) -0.6 μg/m3 (0) 41.0
 
May 11, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 11.0 μg/m3 (11) N/A 40.0
 
May 11, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 10.0 μg/m3 (10) -1.1 μg/m3 (0) 39.0
 
May 11, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 13.0 μg/m3 (13) -3.1 μg/m3 (0) 35.0
 
May 11, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 15.0 μg/m3 (14) 3.5 μg/m3 (15) 19.0
 
May 11, 2021, noon N/A N/A N/A N/A N/A N/A 6.0 ppb (6) N/A 18.0 μg/m3 (17) -0.2 μg/m3 (0) 17.0
 
May 11, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 13.0 μg/m3 (13) 0.2 μg/m3 (1) 13.0
 
May 11, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 10.0 μg/m3 (10) 0.3 μg/m3 (2) 10.0
 
May 11, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 10.0 μg/m3 (10) 0.1 μg/m3 (1) 10.0
 
May 11, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 11.0 μg/m3 (11) -0.8 μg/m3 (0) 11.0
 
May 11, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 9.0 μg/m3 (9) 0.4 μg/m3 (2) 9.0
 
May 11, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 9.0 μg/m3 (9) 1.0 μg/m3 (5) 9.0
 
May 11, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 8.0 μg/m3 (8) 2.1 μg/m3 (9) 9.0
 
May 11, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A 9.0 μg/m3 (9) 2.0 μg/m3 (9) 9.0
 
May 11, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) N/A 8.0 μg/m3 (8) 1.9 μg/m3 (8) 8.0
 
May 11, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A 9.0 μg/m3 (9) 0.4 μg/m3 (2) 13.0
 
May 11, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 11.0 μg/m3 (11) N/A 25.0
 
May 11, 2021, midnight N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 10.0 μg/m3 (10) 2.1 μg/m3 (9) 30.0
 
May 10, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 11.0 μg/m3 (11) 0.5 μg/m3 (3) 33.0
 
May 10, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 8.0 μg/m3 (8) 1.3 μg/m3 (6) 33.0