ID: 2557

AQSQID: 80011G003

Site Name: Estaci¢N San Juanico

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

Updated: Sept. 28, 2021, 7:02 p.m.

Location: Celaya (Las Gorditas De Doña Chango), MX

Reporting: True, Located: True

Current AQI: 54.0

Celaya (Las Gorditas De Doña Chango) MX, MX: 20.537683, -100.83994

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 20, 2021, 9 p.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 54.0 ppb (50) N/A 48.0 μg/m3 (45) 9.3 μg/m3 (39) 50.0
 
Sept. 20, 2021, 8 p.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 50.0 ppb (47) N/A 71.0 μg/m3 (59) 10.3 μg/m3 (43) 59.0
 
Sept. 20, 2021, 7 p.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 50.0 ppb (47) N/A 52.0 μg/m3 (49) 19.8 μg/m3 (68) 68.0
 
Sept. 20, 2021, 6 p.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 40.0 ppb (38) N/A 71.0 μg/m3 (59) 11.8 μg/m3 (50) 59.0
 
Sept. 20, 2021, 5 p.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 22.0 ppb (21) N/A 137.0 μg/m3 (92) 12.9 μg/m3 (53) 92.0
 
Sept. 20, 2021, 4 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 13.0 ppb (13) N/A 25.0 μg/m3 (24) 8.0 μg/m3 (34) 34.0
 
Sept. 20, 2021, 3 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 4.0 ppb (4) N/A 27.0 μg/m3 (25) 6.2 μg/m3 (26) 26.0
 
Sept. 20, 2021, 2 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 1.0 ppb (1) N/A 25.0 μg/m3 (24) 6.2 μg/m3 (26) 26.0
 
Sept. 20, 2021, 1 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 1.0 ppb (1) N/A 17.0 μg/m3 (16) 4.2 μg/m3 (18) 18.0
 
Sept. 20, 2021, noon N/A N/A N/A N/A N/A 4.0 ppb (6) 9.0 ppb (9) N/A 4.0 μg/m3 (4) 3.7 μg/m3 (16) 16.0
 
Sept. 20, 2021, 11 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 16.0 ppb (15) N/A 8.0 μg/m3 (8) 3.5 μg/m3 (15) 15.0
 
Sept. 20, 2021, 10 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 25.0 ppb (24) N/A 1.0 μg/m3 (1) 4.2 μg/m3 (18) 24.0
 
Sept. 20, 2021, 9 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 21.0 ppb (20) N/A 1.0 μg/m3 (1) 4.9 μg/m3 (21) 21.0
 
Sept. 20, 2021, 8 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 22.0 ppb (21) N/A 1.0 μg/m3 (1) 4.2 μg/m3 (18) 21.0
 
Sept. 20, 2021, 7 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 23.0 ppb (22) N/A 1.0 μg/m3 (1) 3.7 μg/m3 (16) 22.0
 
Sept. 20, 2021, 6 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 23.0 ppb (22) N/A 3.0 μg/m3 (3) 3.2 μg/m3 (14) 22.0
 
Sept. 20, 2021, 5 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 25.0 ppb (24) N/A 269.0 μg/m3 (158) 5.6 μg/m3 (24) 158.0
 
Sept. 20, 2021, 4 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 26.0 ppb (25) N/A 16.0 μg/m3 (15) 7.3 μg/m3 (31) 31.0
 
Sept. 20, 2021, 3 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 17.0 ppb (16) N/A 14.0 μg/m3 (13) 7.4 μg/m3 (31) 31.0
 
Sept. 20, 2021, 2 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 20.0 ppb (19) N/A 19.0 μg/m3 (18) 6.9 μg/m3 (29) 29.0
 
Sept. 20, 2021, 1 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 32.0 ppb (30) N/A 25.0 μg/m3 (24) 5.5 μg/m3 (23) 30.0
 
Sept. 20, 2021, midnight N/A N/A N/A N/A N/A 5.0 ppb (8) 34.0 ppb (32) N/A 18.0 μg/m3 (17) 0.7 μg/m3 (3) 32.0
 
Sept. 19, 2021, 11 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 40.0 ppb (38) N/A 19.0 μg/m3 (18) 3.4 μg/m3 (15) 38.0
 
Sept. 19, 2021, 10 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 42.0 ppb (39) N/A 24.0 μg/m3 (23) 5.1 μg/m3 (22) 39.0
 
Sept. 19, 2021, 9 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 41.0 ppb (38) N/A 24.0 μg/m3 (23) 2.8 μg/m3 (12) 38.0
 
Sept. 19, 2021, 8 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 44.0 ppb (41) N/A 17.0 μg/m3 (16) 2.5 μg/m3 (11) 41.0
 
Sept. 19, 2021, 7 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 43.0 ppb (40) N/A 18.0 μg/m3 (17) 4.6 μg/m3 (20) 40.0
 
Sept. 19, 2021, 6 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 37.0 ppb (35) N/A 22.0 μg/m3 (21) 6.1 μg/m3 (26) 35.0
 
Sept. 19, 2021, 5 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 29.0 ppb (27) N/A 12.0 μg/m3 (12) 4.5 μg/m3 (19) 27.0
 
Sept. 19, 2021, 4 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 26.0 ppb (25) N/A 12.0 μg/m3 (12) 4.4 μg/m3 (19) 25.0
 
Sept. 19, 2021, 3 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 23.0 ppb (22) N/A 16.0 μg/m3 (15) 5.6 μg/m3 (24) 24.0
 
Sept. 19, 2021, 2 p.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 20.0 ppb (19) N/A 19.0 μg/m3 (18) 7.1 μg/m3 (30) 30.0
 
Sept. 19, 2021, 1 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 20.0 ppb (19) N/A 20.0 μg/m3 (19) 7.8 μg/m3 (33) 33.0
 
Sept. 19, 2021, noon N/A N/A N/A N/A N/A 6.0 ppb (9) 23.0 ppb (22) N/A 17.0 μg/m3 (16) 6.9 μg/m3 (29) 29.0
 
Sept. 19, 2021, 11 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 24.0 ppb (23) N/A 16.0 μg/m3 (15) 5.0 μg/m3 (21) 23.0
 
Sept. 19, 2021, 10 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 22.0 ppb (21) N/A 20.0 μg/m3 (19) 5.6 μg/m3 (24) 24.0
 
Sept. 19, 2021, 9 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 24.0 ppb (23) N/A 16.0 μg/m3 (15) 7.1 μg/m3 (30) 30.0
 
Sept. 19, 2021, 8 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 23.0 ppb (22) N/A 21.0 μg/m3 (20) 15.0 μg/m3 (58) 58.0
 
Sept. 19, 2021, 7 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 22.0 ppb (21) N/A 20.0 μg/m3 (19) 9.0 μg/m3 (38) 38.0
 
Sept. 19, 2021, 6 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 23.0 ppb (22) N/A 20.0 μg/m3 (19) 5.0 μg/m3 (21) 22.0
 
Sept. 19, 2021, 5 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 21.0 ppb (20) N/A 27.0 μg/m3 (25) 6.6 μg/m3 (28) 28.0
 
Sept. 19, 2021, 4 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 23.0 ppb (22) N/A 33.0 μg/m3 (31) 9.0 μg/m3 (38) 38.0
 
Sept. 19, 2021, 3 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 28.0 ppb (26) N/A 25.0 μg/m3 (24) 6.7 μg/m3 (28) 28.0
 
Sept. 19, 2021, 2 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 25.0 ppb (24) N/A 42.0 μg/m3 (39) 7.4 μg/m3 (31) 39.0
 
Sept. 19, 2021, 1 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 25.0 ppb (24) N/A 28.0 μg/m3 (26) 9.6 μg/m3 (40) 40.0
 
Sept. 19, 2021, midnight N/A N/A N/A N/A N/A 4.0 ppb (6) 44.0 ppb (41) N/A 24.0 μg/m3 (23) 8.2 μg/m3 (35) 41.0
 
Sept. 18, 2021, 11 p.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 57.0 ppb (58) N/A 21.0 μg/m3 (20) 6.0 μg/m3 (25) 58.0
 
Sept. 18, 2021, 10 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 56.0 ppb (55) N/A 22.0 μg/m3 (21) 6.4 μg/m3 (27) 55.0
 
Sept. 18, 2021, 9 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 56.0 ppb (55) N/A 23.0 μg/m3 (22) 7.6 μg/m3 (32) 55.0
 
Sept. 18, 2021, 8 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 55.0 ppb (51) N/A 34.0 μg/m3 (32) 10.0 μg/m3 (42) 51.0
 
Sept. 18, 2021, 7 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 56.0 ppb (55) N/A 28.0 μg/m3 (26) 12.2 μg/m3 (52) 55.0
 
Sept. 18, 2021, 6 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 50.0 ppb (47) N/A 38.0 μg/m3 (36) 15.3 μg/m3 (58) 58.0
 
Sept. 18, 2021, 5 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 33.0 ppb (31) N/A 39.0 μg/m3 (37) 15.2 μg/m3 (58) 58.0
 
Sept. 18, 2021, 4 p.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 20.0 ppb (19) N/A 39.0 μg/m3 (37) 10.7 μg/m3 (45) 45.0
 
Sept. 18, 2021, 3 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 7.0 ppb (7) N/A 39.0 μg/m3 (37) 8.6 μg/m3 (36) 37.0
 
Sept. 18, 2021, 2 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 5.0 ppb (5) N/A 29.0 μg/m3 (27) 4.5 μg/m3 (19) 27.0
 
Sept. 18, 2021, 1 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 3.0 ppb (3) N/A 20.0 μg/m3 (19) 5.1 μg/m3 (22) 22.0
 
Sept. 18, 2021, noon N/A N/A N/A N/A N/A 4.0 ppb (6) 19.0 ppb (18) N/A 25.0 μg/m3 (24) 8.0 μg/m3 (34) 34.0
 
Sept. 18, 2021, 11 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 25.0 ppb (24) N/A 23.0 μg/m3 (22) 7.1 μg/m3 (30) 30.0
 
Sept. 18, 2021, 10 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 26.0 ppb (25) N/A 15.0 μg/m3 (14) 5.0 μg/m3 (21) 25.0
 
Sept. 18, 2021, 9 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 21.0 ppb (20) N/A 19.0 μg/m3 (18) 4.9 μg/m3 (21) 21.0
 
Sept. 18, 2021, 8 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 14.0 ppb (13) N/A 15.0 μg/m3 (14) 5.2 μg/m3 (22) 22.0
 
Sept. 18, 2021, 7 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 26.0 ppb (25) N/A 14.0 μg/m3 (13) 4.9 μg/m3 (21) 25.0
 
Sept. 18, 2021, 6 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 25.0 ppb (24) N/A 19.0 μg/m3 (18) 4.4 μg/m3 (19) 24.0
 
Sept. 18, 2021, 5 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 24.0 ppb (23) N/A 14.0 μg/m3 (13) 4.4 μg/m3 (19) 23.0
 
Sept. 18, 2021, 4 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 25.0 ppb (24) N/A 14.0 μg/m3 (13) 4.7 μg/m3 (20) 24.0
 
Sept. 18, 2021, 3 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 24.0 ppb (23) N/A 15.0 μg/m3 (14) 3.7 μg/m3 (16) 23.0
 
Sept. 18, 2021, 2 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 31.0 ppb (29) N/A 23.0 μg/m3 (22) 3.7 μg/m3 (16) 29.0
 
Sept. 18, 2021, 1 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 33.0 ppb (31) N/A 28.0 μg/m3 (26) 6.3 μg/m3 (27) 31.0
 
Sept. 18, 2021, midnight N/A N/A N/A N/A N/A 4.0 ppb (6) 40.0 ppb (38) N/A 42.0 μg/m3 (39) 7.8 μg/m3 (33) 39.0
 
Sept. 17, 2021, 11 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 36.0 ppb (34) N/A 53.0 μg/m3 (50) 12.4 μg/m3 (52) 52.0
 
Sept. 17, 2021, 10 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 59.0 ppb (65) N/A 46.0 μg/m3 (43) 9.4 μg/m3 (40) 65.0
 
Sept. 17, 2021, 9 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 57.0 ppb (58) N/A 48.0 μg/m3 (45) 10.5 μg/m3 (44) 58.0
 
Sept. 17, 2021, 8 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 58.0 ppb (61) N/A 36.0 μg/m3 (34) 10.6 μg/m3 (45) 61.0
 
Sept. 17, 2021, 7 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 53.0 ppb (50) N/A 34.0 μg/m3 (32) 13.1 μg/m3 (54) 54.0
 
Sept. 17, 2021, 6 p.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 42.0 ppb (39) N/A 34.0 μg/m3 (32) 10.2 μg/m3 (43) 43.0
 
Sept. 17, 2021, 5 p.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 32.0 ppb (30) N/A 41.0 μg/m3 (38) 14.1 μg/m3 (56) 56.0
 
Sept. 17, 2021, 4 p.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 23.0 ppb (22) N/A 44.0 μg/m3 (41) 15.1 μg/m3 (58) 58.0
 
Sept. 17, 2021, 3 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 14.0 ppb (13) N/A 67.0 μg/m3 (57) 15.4 μg/m3 (58) 58.0
 
Sept. 17, 2021, 2 p.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 1.0 ppb (1) N/A 79.0 μg/m3 (63) 12.8 μg/m3 (53) 63.0
 
Sept. 17, 2021, 1 p.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 0.0 ppb (0) N/A 38.0 μg/m3 (36) 15.6 μg/m3 (59) 59.0
 
Sept. 17, 2021, noon N/A N/A N/A N/A N/A 5.0 ppb (8) 3.0 ppb (3) N/A 37.0 μg/m3 (35) 10.5 μg/m3 (44) 44.0
 
Sept. 17, 2021, 11 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 0.0 ppb (0) N/A 28.0 μg/m3 (26) 8.9 μg/m3 (38) 38.0
 
Sept. 17, 2021, 10 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 10.0 ppb (10) N/A 30.0 μg/m3 (28) 12.1 μg/m3 (51) 51.0
 
Sept. 17, 2021, 9 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 18.0 ppb (17) N/A 22.0 μg/m3 (21) 11.5 μg/m3 (48) 48.0
 
Sept. 17, 2021, 8 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 14.0 ppb (13) N/A 30.0 μg/m3 (28) 17.2 μg/m3 (62) 62.0
 
Sept. 17, 2021, 6 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 4.0 ppb (4) N/A 38.0 μg/m3 (36) 15.3 μg/m3 (58) 58.0
 
Sept. 17, 2021, 5 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) N/A N/A 35.0 μg/m3 (33) 22.1 μg/m3 (73) 73.0
 
Sept. 17, 2021, 4 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 1.0 ppb (1) N/A 36.0 μg/m3 (34) 13.5 μg/m3 (54) 54.0
 
Sept. 17, 2021, 3 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 7.0 ppb (7) N/A 28.0 μg/m3 (26) 7.5 μg/m3 (32) 32.0
 
Sept. 17, 2021, 2 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 11.0 ppb (11) N/A 21.0 μg/m3 (20) 8.1 μg/m3 (34) 34.0
 
Sept. 17, 2021, 1 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 25.0 ppb (24) N/A 23.0 μg/m3 (22) 10.0 μg/m3 (42) 42.0
 
Sept. 17, 2021, midnight N/A N/A N/A N/A N/A 5.0 ppb (8) 36.0 ppb (34) N/A 77.0 μg/m3 (62) 12.4 μg/m3 (52) 62.0
 
Sept. 16, 2021, 11 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 55.0 ppb (51) N/A 43.0 μg/m3 (40) 9.0 μg/m3 (38) 51.0
 
Sept. 16, 2021, 10 p.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 60.0 ppb (68) N/A N/A N/A 68.0
 
Sept. 16, 2021, 9 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 58.0 ppb (61) N/A 12.0 μg/m3 (12) N/A 61.0
 
Sept. 16, 2021, 8 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 57.0 ppb (58) N/A 26.0 μg/m3 (25) 7.0 μg/m3 (30) 58.0
 
Sept. 16, 2021, 7 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 55.0 ppb (51) N/A 22.0 μg/m3 (21) 10.0 μg/m3 (42) 51.0
 
Sept. 16, 2021, 6 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 49.0 ppb (46) N/A 21.0 μg/m3 (20) 7.7 μg/m3 (33) 46.0
 
Sept. 16, 2021, 5 p.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 40.0 ppb (38) N/A 24.0 μg/m3 (23) 8.6 μg/m3 (36) 38.0
 
Sept. 16, 2021, 4 p.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 34.0 ppb (32) N/A 32.0 μg/m3 (30) 11.0 μg/m3 (46) 46.0
 
Sept. 16, 2021, 3 p.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 22.0 ppb (21) N/A 42.0 μg/m3 (39) 12.7 μg/m3 (53) 53.0
 
Sept. 16, 2021, 2 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 7.0 ppb (7) N/A 43.0 μg/m3 (40) 10.6 μg/m3 (45) 45.0
 
Sept. 16, 2021, 1 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 5.0 ppb (5) N/A 36.0 μg/m3 (34) 12.9 μg/m3 (53) 53.0
 
Sept. 16, 2021, noon N/A N/A N/A N/A N/A 4.0 ppb (6) 9.0 ppb (9) N/A 36.0 μg/m3 (34) 20.6 μg/m3 (69) 69.0
 
Sept. 16, 2021, 11 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 14.0 ppb (13) N/A 34.0 μg/m3 (32) 15.3 μg/m3 (58) 58.0
 
Sept. 16, 2021, 10 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 13.0 ppb (13) N/A 34.0 μg/m3 (32) 17.6 μg/m3 (63) 63.0
 
Sept. 16, 2021, 9 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 13.0 ppb (13) N/A 35.0 μg/m3 (33) 17.4 μg/m3 (63) 63.0
 
Sept. 16, 2021, 8 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 16.0 ppb (15) N/A 37.0 μg/m3 (35) 20.0 μg/m3 (68) 68.0
 
Sept. 16, 2021, 7 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 15.0 ppb (14) N/A 47.0 μg/m3 (44) 21.5 μg/m3 (71) 71.0
 
Sept. 16, 2021, 6 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 17.0 ppb (16) N/A 36.0 μg/m3 (34) 19.9 μg/m3 (68) 68.0
 
Sept. 16, 2021, 5 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 10.0 ppb (10) N/A 44.0 μg/m3 (41) 16.7 μg/m3 (61) 61.0
 
Sept. 16, 2021, 4 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 13.0 ppb (13) N/A 34.0 μg/m3 (32) 11.9 μg/m3 (50) 50.0
 
Sept. 16, 2021, 3 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 12.0 ppb (12) N/A 33.0 μg/m3 (31) 13.7 μg/m3 (55) 55.0
 
Sept. 16, 2021, 2 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 1.0 ppb (1) N/A 25.0 μg/m3 (24) 6.8 μg/m3 (29) 29.0
 
Sept. 16, 2021, 1 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 17.0 ppb (16) N/A 27.0 μg/m3 (25) 8.3 μg/m3 (35) 35.0
 
Sept. 16, 2021, midnight N/A N/A N/A N/A N/A 4.0 ppb (6) 29.0 ppb (27) N/A 42.0 μg/m3 (39) 9.3 μg/m3 (39) 39.0
 
Sept. 15, 2021, 11 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 41.0 ppb (38) N/A 41.0 μg/m3 (38) 8.6 μg/m3 (36) 38.0
 
Sept. 15, 2021, 10 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 50.0 ppb (47) N/A 57.0 μg/m3 (52) 11.7 μg/m3 (49) 52.0
 
Sept. 15, 2021, 9 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 56.0 ppb (55) N/A 42.0 μg/m3 (39) 8.7 μg/m3 (37) 55.0
 
Sept. 15, 2021, 8 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 53.0 ppb (50) N/A 46.0 μg/m3 (43) 9.6 μg/m3 (40) 50.0
 
Sept. 15, 2021, 7 p.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 48.0 ppb (45) N/A 48.0 μg/m3 (45) 10.1 μg/m3 (43) 45.0
 
Sept. 15, 2021, 6 p.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 38.0 ppb (36) N/A 53.0 μg/m3 (50) 12.2 μg/m3 (52) 52.0
 
Sept. 15, 2021, 5 p.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 27.0 ppb (25) N/A 49.0 μg/m3 (46) 13.4 μg/m3 (54) 54.0
 
Sept. 15, 2021, 4 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 14.0 ppb (13) N/A 56.0 μg/m3 (52) 9.9 μg/m3 (42) 52.0
 
Sept. 15, 2021, 3 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 5.0 ppb (5) N/A 48.0 μg/m3 (45) 8.4 μg/m3 (36) 45.0
 
Sept. 15, 2021, 2 p.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 2.0 ppb (2) N/A 57.0 μg/m3 (52) 7.6 μg/m3 (32) 52.0
 
Sept. 15, 2021, 1 p.m. N/A N/A N/A N/A N/A 5.0 ppb (8) N/A N/A 32.0 μg/m3 (30) 4.5 μg/m3 (19) 30.0
 
Sept. 15, 2021, noon N/A N/A N/A N/A N/A 4.0 ppb (6) 1.0 ppb (1) N/A 40.0 μg/m3 (38) 8.5 μg/m3 (36) 38.0
 
Sept. 15, 2021, 11 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A N/A 55.0 μg/m3 (51) 13.3 μg/m3 (54) 54.0
 
Sept. 15, 2021, 10 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) N/A N/A 40.0 μg/m3 (38) 9.5 μg/m3 (40) 40.0
 
Sept. 15, 2021, 9 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) N/A N/A 28.0 μg/m3 (26) 7.7 μg/m3 (33) 33.0
 
Sept. 15, 2021, 8 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 3.0 ppb (3) N/A 27.0 μg/m3 (25) 9.3 μg/m3 (39) 39.0
 
Sept. 15, 2021, 7 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 4.0 ppb (4) N/A 32.0 μg/m3 (30) 8.1 μg/m3 (34) 34.0
 
Sept. 15, 2021, 6 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 7.0 ppb (7) N/A 29.0 μg/m3 (27) 8.4 μg/m3 (36) 36.0
 
Sept. 15, 2021, 5 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 6.0 ppb (6) N/A 24.0 μg/m3 (23) 7.4 μg/m3 (31) 31.0
 
Sept. 15, 2021, 4 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 7.0 ppb (7) N/A 34.0 μg/m3 (32) 7.4 μg/m3 (31) 32.0
 
Sept. 15, 2021, 3 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 10.0 ppb (10) N/A 26.0 μg/m3 (25) 2.9 μg/m3 (13) 25.0
 
Sept. 15, 2021, 2 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 10.0 ppb (10) N/A 35.0 μg/m3 (33) 0.6 μg/m3 (3) 33.0
 
Sept. 15, 2021, 1 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 15.0 ppb (14) N/A 28.0 μg/m3 (26) 0.6 μg/m3 (3) 26.0
 
Sept. 15, 2021, midnight N/A N/A N/A N/A N/A 4.0 ppb (6) 20.0 ppb (19) N/A 19.0 μg/m3 (18) 1.0 μg/m3 (5) 19.0
 
Sept. 14, 2021, 11 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 25.0 ppb (24) N/A 19.0 μg/m3 (18) 2.7 μg/m3 (12) 24.0
 
Sept. 14, 2021, 10 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 26.0 ppb (25) N/A 29.0 μg/m3 (27) 3.0 μg/m3 (13) 27.0
 
Sept. 14, 2021, 9 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 24.0 ppb (23) N/A 17.0 μg/m3 (16) 2.3 μg/m3 (10) 23.0
 
Sept. 14, 2021, 8 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 19.0 ppb (18) N/A 23.0 μg/m3 (22) 2.7 μg/m3 (12) 22.0
 
Sept. 14, 2021, 7 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 24.0 ppb (23) N/A 22.0 μg/m3 (21) 7.2 μg/m3 (31) 31.0
 
Sept. 14, 2021, 6 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 30.0 ppb (28) N/A 35.0 μg/m3 (33) 7.4 μg/m3 (31) 33.0
 
Sept. 14, 2021, 5 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 24.0 ppb (23) N/A 28.0 μg/m3 (26) 5.5 μg/m3 (23) 26.0
 
Sept. 14, 2021, 4 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 22.0 ppb (21) N/A 33.0 μg/m3 (31) 5.9 μg/m3 (25) 31.0
 
Sept. 14, 2021, 3 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 16.0 ppb (15) N/A 24.0 μg/m3 (23) 5.9 μg/m3 (25) 25.0
 
Sept. 14, 2021, 2 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 7.0 ppb (7) N/A 30.0 μg/m3 (28) 5.2 μg/m3 (22) 28.0
 
Sept. 14, 2021, 1 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 4.0 ppb (4) N/A 17.0 μg/m3 (16) 1.9 μg/m3 (8) 16.0
 
Sept. 14, 2021, noon N/A N/A N/A N/A N/A 4.0 ppb (6) 7.0 ppb (7) N/A 10.0 μg/m3 (10) 0.8 μg/m3 (4) 10.0
 
Sept. 14, 2021, 11 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 13.0 ppb (13) N/A 16.0 μg/m3 (15) 0.6 μg/m3 (3) 15.0
 
Sept. 14, 2021, 10 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 20.0 ppb (19) N/A 12.0 μg/m3 (12) 0.6 μg/m3 (3) 19.0
 
Sept. 14, 2021, 9 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 23.0 ppb (22) N/A 18.0 μg/m3 (17) 3.4 μg/m3 (15) 22.0
 
Sept. 14, 2021, 8 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 17.0 ppb (16) N/A 5.0 μg/m3 (5) 5.1 μg/m3 (22) 22.0
 
Sept. 14, 2021, 7 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 21.0 ppb (20) N/A 18.0 μg/m3 (17) 6.8 μg/m3 (29) 29.0
 
Sept. 14, 2021, 6 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 21.0 ppb (20) N/A 27.0 μg/m3 (25) 5.2 μg/m3 (22) 25.0
 
Sept. 14, 2021, 5 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 17.0 ppb (16) N/A 26.0 μg/m3 (25) 7.1 μg/m3 (30) 30.0
 
Sept. 14, 2021, 4 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 21.0 ppb (20) N/A 25.0 μg/m3 (24) 7.6 μg/m3 (32) 32.0
 
Sept. 14, 2021, 3 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 22.0 ppb (21) N/A 32.0 μg/m3 (30) 7.9 μg/m3 (33) 33.0
 
Sept. 14, 2021, 2 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 29.0 ppb (27) N/A 28.0 μg/m3 (26) 9.3 μg/m3 (39) 39.0
 
Sept. 14, 2021, 1 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 38.0 ppb (36) N/A 36.0 μg/m3 (34) 10.3 μg/m3 (43) 43.0
 
Sept. 14, 2021, midnight N/A N/A N/A N/A N/A 4.0 ppb (6) 39.0 ppb (37) N/A 48.0 μg/m3 (45) 9.1 μg/m3 (38) 45.0
 
Sept. 13, 2021, 11 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 50.0 ppb (47) N/A 33.0 μg/m3 (31) 9.6 μg/m3 (40) 47.0
 
Sept. 13, 2021, 10 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 54.0 ppb (50) N/A 32.0 μg/m3 (30) 9.4 μg/m3 (40) 50.0
 
Sept. 13, 2021, 9 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 54.0 ppb (50) N/A 27.0 μg/m3 (25) 7.7 μg/m3 (33) 50.0