ID: 403

AQSQID: 201730010

Site Name: Whlthdpt

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

Updated: March 7, 2021, 4:32 a.m.

Location: Wichita (N Central), KS

Reporting: True, Located: True

Current AQI: 46.0

Wichita (N Central) KS, US: 37.7011, -97.3139

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 7, 2021, 3 a.m. N/A N/A N/A 12.0 ppb (12) N/A N/A 30.0 ppb (28) N/A 17.9 μg/m3 (17) 10.9 μg/m3 (46) 46.0
 
March 7, 2021, 2 a.m. N/A N/A N/A 16.0 ppb (16) N/A N/A 28.0 ppb (26) N/A 21.0 μg/m3 (20) 5.0 μg/m3 (21) 26.0
 
March 7, 2021, 1 a.m. N/A N/A N/A 12.0 ppb (12) N/A N/A 36.0 ppb (34) N/A 20.4 μg/m3 (19) N/A 34.0
 
March 7, 2021, midnight N/A N/A N/A 6.0 ppb (6) N/A N/A 46.0 ppb (43) N/A 16.5 μg/m3 (16) 2.7 μg/m3 (12) 43.0
 
March 6, 2021, 11 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 50.0 ppb (47) N/A 19.3 μg/m3 (18) 21.8 μg/m3 (72) 72.0
 
March 6, 2021, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 52.0 ppb (49) N/A 18.2 μg/m3 (17) 3.6 μg/m3 (16) 49.0
 
March 6, 2021, 9 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 51.0 ppb (48) N/A 16.4 μg/m3 (16) 14.2 μg/m3 (56) 56.0
 
March 6, 2021, 8 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 49.0 ppb (46) N/A 15.7 μg/m3 (15) 6.5 μg/m3 (28) 46.0
 
March 6, 2021, 7 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 47.0 ppb (44) N/A 12.9 μg/m3 (12) -1.4 μg/m3 (0) 44.0
 
March 6, 2021, 6 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 45.0 ppb (42) N/A 11.2 μg/m3 (11) 6.7 μg/m3 (28) 42.0
 
March 6, 2021, 5 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 41.0 ppb (38) N/A 11.8 μg/m3 (11) 2.0 μg/m3 (9) 38.0
 
March 6, 2021, 4 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 37.0 ppb (35) N/A 12.2 μg/m3 (12) 7.1 μg/m3 (30) 35.0
 
March 6, 2021, 3 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 31.0 ppb (29) N/A 14.6 μg/m3 (14) 5.5 μg/m3 (23) 29.0
 
March 6, 2021, 2 p.m. N/A N/A N/A 11.0 ppb (11) N/A N/A 24.0 ppb (23) N/A 15.2 μg/m3 (15) 0.7 μg/m3 (3) 23.0
 
March 6, 2021, 1 p.m. N/A N/A N/A 20.0 ppb (19) N/A N/A 8.0 ppb (8) N/A 13.7 μg/m3 (13) 1.0 μg/m3 (5) 19.0
 
March 6, 2021, noon N/A N/A N/A 15.0 ppb (15) N/A N/A 11.0 ppb (11) N/A 9.1 μg/m3 (9) 3.6 μg/m3 (16) 16.0
 
March 6, 2021, 11 a.m. N/A N/A N/A 13.0 ppb (13) N/A N/A 16.0 ppb (15) N/A 9.1 μg/m3 (9) 19.8 μg/m3 (68) 68.0
 
March 6, 2021, 10 a.m. N/A N/A N/A 9.0 ppb (9) N/A N/A 20.0 ppb (19) N/A 9.0 μg/m3 (9) 13.9 μg/m3 (55) 55.0
 
March 6, 2021, 9 a.m. N/A N/A N/A 14.0 ppb (14) N/A N/A 16.0 ppb (15) N/A 10.3 μg/m3 (10) 5.6 μg/m3 (24) 24.0
 
March 6, 2021, 8 a.m. N/A N/A N/A 12.0 ppb (12) N/A N/A 19.0 ppb (18) N/A 11.7 μg/m3 (11) 10.0 μg/m3 (42) 42.0
 
March 6, 2021, 7 a.m. N/A N/A N/A 12.0 ppb (12) N/A N/A 20.0 ppb (19) N/A 14.3 μg/m3 (14) 4.9 μg/m3 (21) 21.0
 
March 6, 2021, 6 a.m. N/A N/A N/A 12.0 ppb (12) N/A N/A 24.0 ppb (23) N/A 14.8 μg/m3 (14) 8.1 μg/m3 (34) 34.0
 
March 6, 2021, 5 a.m. N/A N/A N/A 12.0 ppb (12) N/A N/A 24.0 ppb (23) N/A 16.0 μg/m3 (15) 1.6 μg/m3 (7) 23.0
 
March 6, 2021, 4 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 32.0 ppb (30) N/A 15.6 μg/m3 (15) 5.4 μg/m3 (23) 30.0
 
March 6, 2021, 3 a.m. N/A N/A N/A 9.0 ppb (9) N/A N/A 33.0 ppb (31) N/A 22.5 μg/m3 (21) 7.6 μg/m3 (32) 32.0
 
March 6, 2021, 2 a.m. N/A N/A N/A 13.0 ppb (13) N/A N/A 34.0 ppb (32) N/A 33.3 μg/m3 (31) 9.5 μg/m3 (40) 40.0
 
March 6, 2021, 1 a.m. N/A N/A N/A 16.0 ppb (16) N/A N/A 27.0 ppb (25) N/A 44.3 μg/m3 (42) 3.4 μg/m3 (15) 42.0
 
March 6, 2021, midnight N/A N/A N/A 7.0 ppb (7) N/A N/A 40.0 ppb (38) N/A 32.3 μg/m3 (30) 7.3 μg/m3 (31) 38.0
 
March 5, 2021, 11 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 45.0 ppb (42) N/A 24.7 μg/m3 (23) 26.4 μg/m3 (82) 82.0
 
March 5, 2021, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 46.0 ppb (43) N/A 20.6 μg/m3 (20) 5.7 μg/m3 (24) 43.0
 
March 5, 2021, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 45.0 ppb (42) N/A 18.6 μg/m3 (18) 10.5 μg/m3 (44) 44.0
 
March 5, 2021, 8 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 43.0 ppb (40) N/A 24.2 μg/m3 (23) 5.5 μg/m3 (23) 40.0
 
March 5, 2021, 7 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 39.0 ppb (37) N/A 22.9 μg/m3 (22) 1.1 μg/m3 (5) 37.0
 
March 5, 2021, 6 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 36.0 ppb (34) N/A 20.2 μg/m3 (19) 12.0 μg/m3 (50) 50.0
 
March 5, 2021, 5 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 34.0 ppb (32) N/A 21.1 μg/m3 (20) 8.1 μg/m3 (34) 34.0
 
March 5, 2021, 4 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 31.0 ppb (29) N/A 17.0 μg/m3 (16) 15.4 μg/m3 (58) 58.0
 
March 5, 2021, 3 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 29.0 ppb (27) N/A 16.4 μg/m3 (16) 9.7 μg/m3 (41) 41.0
 
March 5, 2021, 2 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 28.0 ppb (26) N/A 15.7 μg/m3 (15) 10.1 μg/m3 (43) 43.0
 
March 5, 2021, 1 p.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 27.0 ppb (25) N/A 21.2 μg/m3 (20) 16.7 μg/m3 (61) 61.0
 
March 5, 2021, noon N/A N/A N/A 6.0 ppb (6) N/A N/A 31.0 ppb (29) N/A 24.1 μg/m3 (23) 16.3 μg/m3 (60) 60.0
 
March 5, 2021, 11 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 32.0 ppb (30) N/A 28.8 μg/m3 (27) 10.6 μg/m3 (45) 45.0
 
March 5, 2021, 10 a.m. N/A N/A N/A 10.0 ppb (10) N/A N/A 31.0 ppb (29) N/A 24.4 μg/m3 (23) 14.4 μg/m3 (56) 56.0
 
March 5, 2021, 9 a.m. N/A N/A N/A 10.0 ppb (10) N/A N/A 29.0 ppb (27) N/A 20.1 μg/m3 (19) 1.4 μg/m3 (6) 27.0
 
March 5, 2021, 8 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 42.0 ppb (39) N/A 17.4 μg/m3 (17) 12.2 μg/m3 (52) 52.0
 
March 5, 2021, 7 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 44.0 ppb (41) N/A 15.1 μg/m3 (14) 15.4 μg/m3 (58) 58.0
 
March 5, 2021, 6 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 40.0 ppb (38) N/A 12.7 μg/m3 (12) 13.8 μg/m3 (55) 55.0
 
March 5, 2021, 5 a.m. N/A N/A N/A 9.0 ppb (9) N/A N/A 35.0 ppb (33) N/A 15.7 μg/m3 (15) 3.6 μg/m3 (16) 33.0
 
March 5, 2021, 4 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 48.0 ppb (45) N/A 20.9 μg/m3 (20) 6.8 μg/m3 (29) 45.0
 
March 5, 2021, 3 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 52.0 ppb (49) N/A 23.6 μg/m3 (22) 0.7 μg/m3 (3) 49.0
 
March 5, 2021, 2 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 52.0 ppb (49) N/A 35.6 μg/m3 (33) 11.2 μg/m3 (47) 49.0
 
March 5, 2021, 1 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 57.0 ppb (58) N/A 32.5 μg/m3 (31) -1.2 μg/m3 (0) 58.0
 
March 5, 2021, midnight N/A N/A N/A 5.0 ppb (5) N/A N/A 59.0 ppb (65) N/A 38.1 μg/m3 (36) 6.8 μg/m3 (29) 65.0
 
March 4, 2021, 11 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 60.0 ppb (68) N/A 38.2 μg/m3 (36) 5.7 μg/m3 (24) 68.0
 
March 4, 2021, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 62.0 ppb (74) N/A 51.8 μg/m3 (48) 11.7 μg/m3 (49) 74.0
 
March 4, 2021, 9 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 59.0 ppb (65) N/A 61.6 μg/m3 (55) 7.1 μg/m3 (30) 65.0
 
March 4, 2021, 8 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 57.0 ppb (58) N/A 27.0 μg/m3 (25) 13.1 μg/m3 (54) 58.0
 
March 4, 2021, 7 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 57.0 ppb (58) N/A 30.4 μg/m3 (29) N/A 58.0
 
March 4, 2021, 6 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 56.0 ppb (55) N/A 23.9 μg/m3 (23) N/A 55.0
 
March 4, 2021, 5 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 55.0 ppb (51) N/A 21.9 μg/m3 (21) N/A 51.0
 
March 4, 2021, 4 p.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 50.0 ppb (47) N/A 24.2 μg/m3 (23) 9.4 μg/m3 (40) 47.0
 
March 4, 2021, 3 p.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 45.0 ppb (42) N/A 22.5 μg/m3 (21) 13.0 μg/m3 (53) 53.0
 
March 4, 2021, 2 p.m. N/A N/A N/A 14.0 ppb (14) N/A N/A 35.0 ppb (33) N/A 32.6 μg/m3 (31) N/A 33.0
 
March 4, 2021, 1 p.m. N/A N/A N/A 25.0 ppb (24) N/A N/A 22.0 ppb (21) N/A 40.3 μg/m3 (38) 44.0 μg/m3 (122) 122.0
 
March 4, 2021, noon N/A N/A N/A 19.0 ppb (18) N/A N/A 24.0 ppb (23) N/A 31.5 μg/m3 (30) 21.4 μg/m3 (71) 71.0
 
March 4, 2021, 11 a.m. N/A N/A N/A 16.0 ppb (16) N/A N/A 27.0 ppb (25) N/A 27.1 μg/m3 (26) 18.9 μg/m3 (66) 66.0
 
March 4, 2021, 10 a.m. N/A N/A N/A 15.0 ppb (15) N/A N/A 30.0 ppb (28) N/A 26.8 μg/m3 (25) 21.5 μg/m3 (71) 71.0
 
March 4, 2021, 9 a.m. N/A N/A N/A 13.0 ppb (13) N/A N/A 30.0 ppb (28) N/A 29.6 μg/m3 (28) 11.5 μg/m3 (48) 48.0
 
March 4, 2021, 8 a.m. N/A N/A N/A 29.0 ppb (28) N/A N/A 9.0 ppb (9) N/A 37.8 μg/m3 (35) N/A 35.0
 
March 4, 2021, 7 a.m. N/A N/A N/A 31.0 ppb (30) N/A N/A 3.0 ppb (3) N/A 37.7 μg/m3 (35) 1.2 μg/m3 (5) 35.0
 
March 4, 2021, 6 a.m. N/A N/A N/A 31.0 ppb (30) N/A N/A 5.0 ppb (5) N/A 42.5 μg/m3 (40) 17.3 μg/m3 (62) 62.0
 
March 4, 2021, 5 a.m. N/A N/A N/A 35.0 ppb (34) N/A N/A 2.0 ppb (2) N/A 54.5 μg/m3 (51) 12.7 μg/m3 (53) 53.0
 
March 4, 2021, 4 a.m. N/A N/A N/A 40.0 ppb (38) N/A N/A 2.0 ppb (2) N/A 54.7 μg/m3 (51) 12.6 μg/m3 (53) 53.0
 
March 4, 2021, 3 a.m. N/A N/A N/A 37.0 ppb (35) N/A N/A 9.0 ppb (9) N/A 55.9 μg/m3 (52) 10.6 μg/m3 (45) 52.0
 
March 4, 2021, 2 a.m. N/A N/A N/A 22.0 ppb (21) N/A N/A 29.0 ppb (27) N/A 51.0 μg/m3 (48) 4.5 μg/m3 (19) 48.0
 
March 4, 2021, 1 a.m. N/A N/A N/A 21.0 ppb (20) N/A N/A 34.0 ppb (32) N/A 58.3 μg/m3 (53) N/A 53.0
 
March 4, 2021, midnight N/A N/A N/A 18.0 ppb (17) N/A N/A 41.0 ppb (38) N/A 40.3 μg/m3 (38) N/A 38.0
 
March 3, 2021, 11 p.m. N/A N/A N/A 11.0 ppb (11) N/A N/A 55.0 ppb (51) N/A 41.6 μg/m3 (39) 21.6 μg/m3 (71) 71.0
 
March 3, 2021, 10 p.m. N/A N/A N/A 8.0 ppb (8) N/A N/A 55.0 ppb (51) N/A 34.0 μg/m3 (32) 14.4 μg/m3 (56) 56.0
 
March 3, 2021, 9 p.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 54.0 ppb (50) N/A 36.7 μg/m3 (34) 16.5 μg/m3 (61) 61.0
 
March 3, 2021, 8 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 53.0 ppb (50) N/A 36.6 μg/m3 (34) 5.0 μg/m3 (21) 50.0
 
March 3, 2021, 7 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 51.0 ppb (48) N/A 23.4 μg/m3 (22) N/A 48.0
 
March 3, 2021, 6 p.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 47.0 ppb (44) N/A 22.3 μg/m3 (21) N/A 44.0
 
March 3, 2021, 5 p.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 43.0 ppb (40) N/A 26.0 μg/m3 (25) N/A 40.0
 
March 3, 2021, 4 p.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 34.0 ppb (32) N/A 33.5 μg/m3 (32) 10.2 μg/m3 (43) 43.0
 
March 3, 2021, 3 p.m. N/A N/A N/A 9.0 ppb (9) N/A N/A 30.0 ppb (28) N/A 29.9 μg/m3 (28) -1.8 μg/m3 (0) 28.0
 
March 3, 2021, 2 p.m. N/A N/A N/A 16.0 ppb (16) N/A N/A 21.0 ppb (20) N/A 35.5 μg/m3 (33) N/A 33.0
 
March 3, 2021, 1 p.m. N/A N/A N/A 27.0 ppb (26) N/A N/A 9.0 ppb (9) N/A 33.2 μg/m3 (31) 12.2 μg/m3 (52) 52.0
 
March 3, 2021, noon N/A N/A N/A 21.0 ppb (20) N/A N/A 13.0 ppb (13) N/A 24.1 μg/m3 (23) 9.1 μg/m3 (38) 38.0
 
March 3, 2021, 11 a.m. N/A N/A N/A 17.0 ppb (17) N/A N/A 17.0 ppb (16) N/A 20.4 μg/m3 (19) 8.9 μg/m3 (38) 38.0
 
March 3, 2021, 10 a.m. N/A N/A N/A 12.0 ppb (12) N/A N/A 22.0 ppb (21) N/A 15.5 μg/m3 (15) N/A 21.0
 
March 3, 2021, 9 a.m. N/A N/A N/A 11.0 ppb (11) N/A N/A 23.0 ppb (22) N/A 17.2 μg/m3 (16) 0.0 μg/m3 (0) 22.0
 
March 3, 2021, 8 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 27.0 ppb (25) N/A 19.6 μg/m3 (19) 4.5 μg/m3 (19) 25.0
 
March 3, 2021, 7 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 28.0 ppb (26) N/A 20.7 μg/m3 (20) N/A 26.0
 
March 3, 2021, 6 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 29.0 ppb (27) N/A 20.3 μg/m3 (19) N/A 27.0
 
March 3, 2021, 5 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 33.0 ppb (31) N/A 22.0 μg/m3 (21) 4.7 μg/m3 (20) 31.0
 
March 3, 2021, 4 a.m. N/A N/A N/A 9.0 ppb (9) N/A N/A 33.0 ppb (31) N/A 24.3 μg/m3 (23) 3.9 μg/m3 (17) 31.0
 
March 3, 2021, 3 a.m. N/A N/A N/A 10.0 ppb (10) N/A N/A 33.0 ppb (31) N/A 28.2 μg/m3 (27) 9.6 μg/m3 (40) 40.0
 
March 3, 2021, 2 a.m. N/A N/A N/A 15.0 ppb (15) N/A N/A 29.0 ppb (27) N/A 35.7 μg/m3 (34) 6.4 μg/m3 (27) 34.0
 
March 3, 2021, 1 a.m. N/A N/A N/A 16.0 ppb (16) N/A N/A 31.0 ppb (29) N/A 46.3 μg/m3 (43) 3.2 μg/m3 (14) 43.0
 
March 3, 2021, midnight N/A N/A N/A 12.0 ppb (12) N/A N/A 37.0 ppb (35) N/A 31.8 μg/m3 (30) N/A 35.0
 
March 2, 2021, 11 p.m. N/A N/A N/A 8.0 ppb (8) N/A N/A 42.0 ppb (39) N/A 21.3 μg/m3 (20) 1.3 μg/m3 (6) 39.0
 
March 2, 2021, 10 p.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 43.0 ppb (40) N/A 22.4 μg/m3 (21) 8.0 μg/m3 (34) 40.0
 
March 2, 2021, 9 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 44.0 ppb (41) N/A 19.4 μg/m3 (18) N/A 41.0
 
March 2, 2021, 8 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 46.0 ppb (43) N/A 19.2 μg/m3 (18) N/A 43.0
 
March 2, 2021, 7 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 44.0 ppb (41) N/A 18.7 μg/m3 (18) N/A 41.0
 
March 2, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 16.4 μg/m3 (16) -1.2 μg/m3 (0) 38.0
 
March 2, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.2 μg/m3 (19) 1.3 μg/m3 (6) 19.0
 
March 2, 2021, 4 p.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 33.0 ppb (31) N/A 22.1 μg/m3 (21) N/A 31.0
 
March 2, 2021, 3 p.m. N/A N/A N/A 14.0 ppb (14) N/A N/A 28.0 ppb (26) N/A 41.6 μg/m3 (39) 7.2 μg/m3 (31) 39.0
 
March 2, 2021, 2 p.m. N/A N/A N/A 28.0 ppb (27) N/A N/A 13.0 ppb (13) N/A 41.9 μg/m3 (39) 8.4 μg/m3 (36) 39.0
 
March 2, 2021, 1 p.m. N/A N/A N/A 32.0 ppb (31) N/A N/A 2.0 ppb (2) N/A 52.7 μg/m3 (49) 10.4 μg/m3 (44) 49.0
 
March 2, 2021, noon N/A N/A N/A 32.0 ppb (31) N/A N/A 0.0 ppb (0) N/A 35.2 μg/m3 (33) 5.3 μg/m3 (23) 33.0
 
March 2, 2021, 11 a.m. N/A N/A N/A 31.0 ppb (30) N/A N/A N/A N/A 23.3 μg/m3 (22) 9.7 μg/m3 (41) 41.0
 
March 2, 2021, 10 a.m. N/A N/A N/A 33.0 ppb (32) N/A N/A N/A N/A 20.4 μg/m3 (19) 5.8 μg/m3 (25) 32.0
 
March 2, 2021, 9 a.m. N/A N/A N/A 31.0 ppb (30) N/A N/A N/A N/A 19.8 μg/m3 (19) 9.6 μg/m3 (40) 40.0
 
March 2, 2021, 8 a.m. N/A N/A N/A 29.0 ppb (28) N/A N/A 1.0 ppb (1) N/A 25.3 μg/m3 (24) 11.9 μg/m3 (50) 50.0
 
March 2, 2021, 7 a.m. N/A N/A N/A 30.0 ppb (29) N/A N/A 1.0 ppb (1) N/A 32.6 μg/m3 (31) 13.3 μg/m3 (54) 54.0
 
March 2, 2021, 6 a.m. N/A N/A N/A 30.0 ppb (29) N/A N/A 1.0 ppb (1) N/A 33.1 μg/m3 (31) 9.2 μg/m3 (39) 39.0
 
March 2, 2021, 5 a.m. N/A N/A N/A 32.0 ppb (31) N/A N/A 1.0 ppb (1) N/A 42.5 μg/m3 (40) 9.2 μg/m3 (39) 40.0
 
March 2, 2021, 4 a.m. N/A N/A N/A 32.0 ppb (31) N/A N/A 1.0 ppb (1) N/A 60.5 μg/m3 (54) 3.5 μg/m3 (15) 54.0
 
March 2, 2021, 3 a.m. N/A N/A N/A 33.0 ppb (32) N/A N/A 1.0 ppb (1) N/A 65.5 μg/m3 (57) 4.8 μg/m3 (20) 57.0
 
March 2, 2021, 2 a.m. N/A N/A N/A 35.0 ppb (34) N/A N/A 1.0 ppb (1) N/A 61.0 μg/m3 (54) 6.2 μg/m3 (26) 54.0
 
March 2, 2021, 1 a.m. N/A N/A N/A 27.0 ppb (26) N/A N/A 12.0 ppb (12) N/A 29.4 μg/m3 (28) 3.1 μg/m3 (13) 28.0
 
March 2, 2021, midnight N/A N/A N/A 9.0 ppb (9) N/A N/A 34.0 ppb (32) N/A 20.1 μg/m3 (19) 1.5 μg/m3 (7) 32.0
 
March 1, 2021, 11 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 41.0 ppb (38) N/A 16.1 μg/m3 (15) 4.8 μg/m3 (20) 38.0
 
March 1, 2021, 10 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 44.0 ppb (41) N/A 11.9 μg/m3 (12) N/A 41.0
 
March 1, 2021, 9 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 45.0 ppb (42) N/A 12.2 μg/m3 (12) N/A 42.0
 
March 1, 2021, 8 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 44.0 ppb (41) N/A 11.1 μg/m3 (11) 0.7 μg/m3 (3) 41.0
 
March 1, 2021, 7 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 40.0 ppb (38) N/A 12.7 μg/m3 (12) 0.4 μg/m3 (2) 38.0
 
March 1, 2021, 6 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 36.0 ppb (34) N/A 13.7 μg/m3 (13) 4.7 μg/m3 (20) 34.0
 
March 1, 2021, 5 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 31.0 ppb (29) N/A 14.0 μg/m3 (13) -1.1 μg/m3 (0) 29.0
 
March 1, 2021, 4 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 25.0 ppb (24) N/A 15.9 μg/m3 (15) 0.7 μg/m3 (3) 24.0
 
March 1, 2021, 3 p.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 20.0 ppb (19) N/A 19.2 μg/m3 (18) 3.2 μg/m3 (14) 19.0
 
March 1, 2021, 2 p.m. N/A N/A N/A 16.0 ppb (16) N/A N/A 12.0 ppb (12) N/A 24.4 μg/m3 (23) 8.1 μg/m3 (34) 34.0
 
March 1, 2021, 1 p.m. N/A N/A N/A 21.0 ppb (20) N/A N/A 1.0 ppb (1) N/A 35.6 μg/m3 (33) 3.8 μg/m3 (16) 33.0
 
March 1, 2021, noon N/A N/A N/A 19.0 ppb (18) N/A N/A 1.0 ppb (1) N/A 24.0 μg/m3 (23) 5.8 μg/m3 (25) 25.0
 
March 1, 2021, 11 a.m. N/A N/A N/A 20.0 ppb (19) N/A N/A 0.0 ppb (0) N/A 21.0 μg/m3 (20) 5.0 μg/m3 (21) 21.0
 
March 1, 2021, 10 a.m. N/A N/A N/A 22.0 ppb (21) N/A N/A 0.0 ppb (0) N/A 11.6 μg/m3 (11) 6.5 μg/m3 (28) 28.0
 
March 1, 2021, 9 a.m. N/A N/A N/A 20.0 ppb (19) N/A N/A 2.0 ppb (2) N/A 8.6 μg/m3 (8) 5.6 μg/m3 (24) 24.0
 
March 1, 2021, 8 a.m. N/A N/A N/A 18.0 ppb (17) N/A N/A 4.0 ppb (4) N/A 9.8 μg/m3 (10) 3.0 μg/m3 (13) 17.0
 
March 1, 2021, 7 a.m. N/A N/A N/A 9.0 ppb (9) N/A N/A 15.0 ppb (14) N/A 6.7 μg/m3 (7) 3.4 μg/m3 (15) 15.0
 
March 1, 2021, 6 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 23.0 ppb (22) N/A 6.2 μg/m3 (6) 3.7 μg/m3 (16) 22.0
 
March 1, 2021, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 25.0 ppb (24) N/A 4.9 μg/m3 (5) 2.6 μg/m3 (11) 24.0
 
March 1, 2021, 4 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 25.0 ppb (24) N/A 9.1 μg/m3 (9) 0.5 μg/m3 (3) 24.0
 
March 1, 2021, 3 a.m. N/A N/A N/A 11.0 ppb (11) N/A N/A 19.0 ppb (18) N/A 11.1 μg/m3 (11) 3.3 μg/m3 (14) 18.0
 
March 1, 2021, 2 a.m. N/A N/A N/A 10.0 ppb (10) N/A N/A 21.0 ppb (20) N/A 10.5 μg/m3 (10) 3.2 μg/m3 (14) 20.0
 
March 1, 2021, 1 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 24.0 ppb (23) N/A 12.0 μg/m3 (12) 2.1 μg/m3 (9) 23.0
 
March 1, 2021, midnight N/A N/A N/A 5.0 ppb (5) N/A N/A 28.0 ppb (26) N/A 10.4 μg/m3 (10) 1.6 μg/m3 (7) 26.0
 
Feb. 28, 2021, 11 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 34.0 ppb (32) N/A 10.4 μg/m3 (10) 0.5 μg/m3 (3) 32.0
 
Feb. 28, 2021, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 38.0 ppb (36) N/A 7.4 μg/m3 (7) 2.9 μg/m3 (13) 36.0
 
Feb. 28, 2021, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 39.0 ppb (37) N/A 6.9 μg/m3 (7) 0.1 μg/m3 (1) 37.0
 
Feb. 28, 2021, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 39.0 ppb (37) N/A 6.0 μg/m3 (6) -1.4 μg/m3 (0) 37.0
 
Feb. 28, 2021, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 38.0 ppb (36) N/A 5.9 μg/m3 (6) 2.4 μg/m3 (10) 36.0
 
Feb. 28, 2021, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 38.0 ppb (36) N/A 6.6 μg/m3 (7) 0.1 μg/m3 (1) 36.0
 
Feb. 28, 2021, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 37.0 ppb (35) N/A 7.6 μg/m3 (8) -0.3 μg/m3 (0) 35.0
 
Feb. 28, 2021, 4 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 33.0 ppb (31) N/A 9.4 μg/m3 (9) 2.8 μg/m3 (12) 31.0
 
Feb. 28, 2021, 3 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 28.0 ppb (26) N/A 8.5 μg/m3 (8) 6.1 μg/m3 (26) 26.0
 
Feb. 28, 2021, 2 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 19.0 ppb (18) N/A 13.6 μg/m3 (13) 1.7 μg/m3 (8) 18.0
 
Feb. 28, 2021, 1 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 15.0 ppb (14) N/A 11.0 μg/m3 (11) 8.6 μg/m3 (36) 36.0
 
Feb. 28, 2021, noon N/A N/A N/A 7.0 ppb (7) N/A N/A 13.0 ppb (13) N/A 9.9 μg/m3 (10) 7.1 μg/m3 (30) 30.0
 
Feb. 28, 2021, 11 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 16.0 ppb (15) N/A 12.3 μg/m3 (12) 7.2 μg/m3 (31) 31.0
 
Feb. 28, 2021, 10 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 18.0 ppb (17) N/A 12.8 μg/m3 (12) 10.3 μg/m3 (43) 43.0
 
Feb. 28, 2021, 9 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 18.0 ppb (17) N/A 12.1 μg/m3 (12) 7.4 μg/m3 (31) 31.0
 
Feb. 28, 2021, 8 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 23.0 ppb (22) N/A 10.9 μg/m3 (11) 6.9 μg/m3 (29) 29.0
 
Feb. 28, 2021, 7 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 18.0 ppb (17) N/A 9.9 μg/m3 (10) 6.9 μg/m3 (29) 29.0
 
Feb. 28, 2021, 6 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 12.0 ppb (12) N/A 7.9 μg/m3 (8) 4.2 μg/m3 (18) 18.0
 
Feb. 28, 2021, 5 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 14.0 ppb (13) N/A 9.3 μg/m3 (9) 8.7 μg/m3 (37) 37.0
 
Feb. 28, 2021, 4 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 18.0 ppb (17) N/A 15.5 μg/m3 (15) 4.8 μg/m3 (20) 20.0