AQSQID: 800090061

Site Name: Iztacalco

Location: Mexico City (Guillermo Prieto), MX

Reporting: True, Located: True

Current AQI: 76.0

Mexico City (Guillermo Prieto) MX, MX: 19.3844, -99.1176

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Feb. 22, 2020, 4 a.m. N/A N/A N/A 24.0 ppb (22) N/A 5.0 ppb (7) 8.0 ppb (6) 0.5 ppb (6) 106.0 μg/m3 (76) N/A 76.0
 
Feb. 22, 2020, 3 a.m. N/A N/A N/A 26.0 ppb (24) N/A 2.0 ppb (3) 8.0 ppb (6) 0.5 ppb (6) 63.0 μg/m3 (54) N/A 54.0
 
Feb. 22, 2020, 2 a.m. N/A N/A N/A 26.0 ppb (24) N/A 2.0 ppb (3) 18.0 ppb (14) 0.6 ppb (7) 52.0 μg/m3 (47) N/A 47.0
 
Feb. 22, 2020, 1 a.m. N/A N/A N/A 18.0 ppb (17) N/A 1.0 ppb (1) 42.0 ppb (32) 0.5 ppb (6) 43.0 μg/m3 (39) N/A 39.0
 
Feb. 22, 2020, midnight N/A N/A N/A 17.0 ppb (16) N/A 2.0 ppb (3) 74.0 ppb (57) 0.6 ppb (7) 50.0 μg/m3 (45) N/A 57.0
 
Feb. 21, 2020, 11 p.m. N/A N/A N/A 19.0 ppb (18) N/A 2.0 ppb (3) 105.0 ppb (83) 0.7 ppb (8) 46.0 μg/m3 (42) N/A 83.0
 
Feb. 21, 2020, 10 p.m. N/A N/A N/A 23.0 ppb (21) N/A 2.0 ppb (3) 107.0 ppb (85) 0.7 ppb (8) 33.0 μg/m3 (30) N/A 85.0
 
Feb. 21, 2020, 9 p.m. N/A N/A N/A 21.0 ppb (19) N/A 2.0 ppb (3) 91.0 ppb (72) 0.7 ppb (8) 29.0 μg/m3 (26) N/A 72.0
 
Feb. 21, 2020, 8 p.m. N/A N/A N/A 20.0 ppb (19) N/A 2.0 ppb (3) 70.0 ppb (54) 0.6 ppb (7) 23.0 μg/m3 (21) N/A 54.0
 
Feb. 21, 2020, 7 p.m. N/A N/A N/A 18.0 ppb (17) N/A 2.0 ppb (3) 50.0 ppb (38) 0.6 ppb (7) 26.0 μg/m3 (24) N/A 38.0
 
Feb. 21, 2020, 6 p.m. N/A N/A N/A 21.0 ppb (19) N/A 2.0 ppb (3) 31.0 ppb (24) 0.6 ppb (7) 19.0 μg/m3 (17) N/A 24.0
 
Feb. 21, 2020, 5 p.m. N/A N/A N/A 22.0 ppb (20) N/A 3.0 ppb (4) 18.0 ppb (14) 0.7 ppb (8) 13.0 μg/m3 (12) N/A 20.0
 
Feb. 21, 2020, 4 p.m. N/A N/A N/A 18.0 ppb (17) N/A 2.0 ppb (3) 13.0 ppb (10) 0.7 ppb (8) 19.0 μg/m3 (17) N/A 17.0
 
Feb. 21, 2020, 3 p.m. N/A N/A N/A 20.0 ppb (19) N/A 3.0 ppb (4) 6.0 ppb (5) 0.7 ppb (8) 20.0 μg/m3 (18) N/A 19.0
 
Feb. 21, 2020, 2 p.m. N/A N/A N/A 22.0 ppb (20) N/A 3.0 ppb (4) 1.0 ppb (1) 0.8 ppb (9) 17.0 μg/m3 (15) N/A 20.0
 
Feb. 21, 2020, 1 p.m. N/A N/A N/A 22.0 ppb (20) N/A 3.0 ppb (4) 1.0 ppb (1) 0.6 ppb (7) 18.0 μg/m3 (16) N/A 20.0
 
Feb. 21, 2020, noon N/A N/A N/A 23.0 ppb (21) N/A 3.0 ppb (4) 2.0 ppb (2) 0.4 ppb (4) 27.0 μg/m3 (25) N/A 25.0
 
Feb. 21, 2020, 11 a.m. N/A N/A N/A 25.0 ppb (23) N/A 3.0 ppb (4) 7.0 ppb (5) 0.4 ppb (4) 31.0 μg/m3 (28) N/A 28.0
 
Feb. 21, 2020, 10 a.m. N/A N/A N/A 30.0 ppb (28) N/A 4.0 ppb (6) 5.0 ppb (4) 0.4 ppb (4) 23.0 μg/m3 (21) N/A 28.0
 
Feb. 21, 2020, 9 a.m. N/A N/A N/A 25.0 ppb (23) N/A 3.0 ppb (4) 10.0 ppb (8) 0.4 ppb (4) 24.0 μg/m3 (22) N/A 23.0
 
Feb. 21, 2020, 8 a.m. N/A N/A N/A 16.0 ppb (15) N/A 3.0 ppb (4) 20.0 ppb (15) 0.4 ppb (4) 18.0 μg/m3 (16) N/A 16.0
 
Feb. 21, 2020, 7 a.m. N/A N/A N/A 14.0 ppb (13) N/A 4.0 ppb (6) 21.0 ppb (16) 0.4 ppb (4) N/A N/A 16.0
 
Feb. 21, 2020, 6 a.m. N/A N/A N/A 15.0 ppb (14) N/A 4.0 ppb (6) 22.0 ppb (17) N/A 35.0 μg/m3 (32) N/A 32.0
 
Feb. 21, 2020, 5 a.m. N/A N/A N/A 19.0 ppb (18) N/A 4.0 ppb (6) 17.0 ppb (13) N/A 50.0 μg/m3 (45) N/A 45.0
 
Feb. 21, 2020, 4 a.m. N/A N/A N/A 14.0 ppb (13) N/A 3.0 ppb (4) 23.0 ppb (18) N/A 77.0 μg/m3 (61) N/A 61.0
 
Feb. 21, 2020, 3 a.m. N/A N/A N/A 26.0 ppb (24) N/A 4.0 ppb (6) 13.0 ppb (10) N/A 47.0 μg/m3 (43) N/A 43.0
 
Feb. 21, 2020, 2 a.m. N/A N/A N/A 29.0 ppb (27) N/A 2.0 ppb (3) 23.0 ppb (18) N/A 55.0 μg/m3 (50) N/A 50.0
 
Feb. 21, 2020, 1 a.m. N/A N/A N/A 22.0 ppb (20) N/A 1.0 ppb (1) 33.0 ppb (25) N/A 59.0 μg/m3 (52) N/A 52.0
 
Feb. 21, 2020, midnight N/A N/A N/A 16.0 ppb (15) N/A 2.0 ppb (3) 44.0 ppb (34) N/A 46.0 μg/m3 (42) N/A 42.0
 
Feb. 20, 2020, 11 p.m. N/A N/A N/A 14.0 ppb (13) N/A 3.0 ppb (4) 58.0 ppb (45) N/A 38.0 μg/m3 (35) N/A 45.0
 
Feb. 20, 2020, 10 p.m. N/A N/A N/A 13.0 ppb (12) N/A 4.0 ppb (6) 58.0 ppb (45) N/A 45.0 μg/m3 (41) N/A 45.0
 
Feb. 20, 2020, 9 p.m. N/A N/A N/A 14.0 ppb (13) N/A 4.0 ppb (6) 64.0 ppb (49) N/A 69.0 μg/m3 (57) N/A 57.0
 
Feb. 20, 2020, 8 p.m. N/A N/A N/A 30.0 ppb (28) N/A 6.0 ppb (9) N/A N/A 74.0 μg/m3 (60) N/A 60.0
 
Feb. 20, 2020, 7 p.m. N/A N/A N/A 55.0 ppb (51) N/A 10.0 ppb (14) N/A N/A 55.0 μg/m3 (50) N/A 51.0
 
Feb. 20, 2020, 6 p.m. N/A N/A N/A 51.0 ppb (47) N/A 11.0 ppb (16) N/A N/A 67.0 μg/m3 (56) N/A 56.0
 
Feb. 20, 2020, 5 p.m. N/A N/A N/A 57.0 ppb (53) N/A 13.0 ppb (19) N/A N/A 66.0 μg/m3 (56) N/A 56.0
 
Feb. 20, 2020, 4 p.m. N/A N/A N/A 47.0 ppb (44) N/A 20.0 ppb (29) 7.0 ppb (5) N/A 57.0 μg/m3 (51) N/A 51.0
 
Feb. 20, 2020, 3 p.m. N/A N/A N/A 35.0 ppb (32) N/A 26.0 ppb (37) 2.0 ppb (2) N/A 63.0 μg/m3 (54) N/A 54.0
 
Feb. 20, 2020, 2 p.m. N/A N/A N/A 29.0 ppb (27) N/A 20.0 ppb (29) 1.0 ppb (1) N/A 55.0 μg/m3 (50) N/A 50.0
 
Feb. 20, 2020, 1 p.m. N/A N/A N/A 29.0 ppb (27) N/A 22.0 ppb (31) 0.0 ppb (0) N/A 57.0 μg/m3 (51) N/A 51.0
 
Feb. 20, 2020, noon N/A N/A N/A 29.0 ppb (27) N/A 18.0 ppb (26) 0.0 ppb (0) N/A 54.0 μg/m3 (49) N/A 49.0
 
Feb. 20, 2020, 11 a.m. N/A N/A N/A 29.0 ppb (27) N/A 9.0 ppb (13) 0.0 ppb (0) N/A 52.0 μg/m3 (47) N/A 47.0
 
Feb. 20, 2020, 10 a.m. N/A N/A N/A 28.0 ppb (26) N/A 6.0 ppb (9) 1.0 ppb (1) N/A 49.0 μg/m3 (45) N/A 45.0
 
Feb. 20, 2020, 9 a.m. N/A N/A N/A 27.0 ppb (25) N/A 5.0 ppb (7) 2.0 ppb (2) N/A 54.0 μg/m3 (49) N/A 49.0
 
Feb. 20, 2020, 8 a.m. N/A N/A N/A 29.0 ppb (27) N/A 7.0 ppb (10) 2.0 ppb (2) N/A 52.0 μg/m3 (47) N/A 47.0
 
Feb. 20, 2020, 7 a.m. N/A N/A N/A 37.0 ppb (34) N/A 29.0 ppb (41) 0.0 ppb (0) N/A N/A N/A 41.0
 
Feb. 20, 2020, 6 a.m. N/A N/A N/A 39.0 ppb (36) N/A 27.0 ppb (39) 0.0 ppb (0) N/A 45.0 μg/m3 (41) N/A 41.0
 
Feb. 20, 2020, 5 a.m. N/A N/A N/A 37.0 ppb (34) N/A 27.0 ppb (39) 3.0 ppb (2) N/A 52.0 μg/m3 (47) N/A 47.0
 
Feb. 20, 2020, 4 a.m. N/A N/A N/A 39.0 ppb (36) N/A 12.0 ppb (17) 4.0 ppb (3) N/A 47.0 μg/m3 (43) N/A 43.0
 
Feb. 20, 2020, 3 a.m. N/A N/A N/A 46.0 ppb (43) N/A 2.0 ppb (3) 2.0 ppb (2) N/A 51.0 μg/m3 (46) N/A 46.0
 
Feb. 20, 2020, 2 a.m. N/A N/A N/A 40.0 ppb (37) N/A 2.0 ppb (3) 16.0 ppb (12) N/A 61.0 μg/m3 (53) N/A 53.0
 
Feb. 20, 2020, 1 a.m. N/A N/A N/A 39.0 ppb (36) N/A 2.0 ppb (3) 35.0 ppb (27) N/A 53.0 μg/m3 (48) N/A 48.0
 
Feb. 20, 2020, midnight N/A N/A N/A 31.0 ppb (29) N/A 7.0 ppb (10) 68.0 ppb (52) N/A 31.0 μg/m3 (28) N/A 52.0
 
Feb. 19, 2020, 11 p.m. N/A N/A N/A 27.0 ppb (25) N/A 8.0 ppb (11) 83.0 ppb (65) N/A 44.0 μg/m3 (40) N/A 65.0
 
Feb. 19, 2020, 10 p.m. N/A N/A N/A 27.0 ppb (25) N/A 7.0 ppb (10) 87.0 ppb (68) N/A 62.0 μg/m3 (54) N/A 68.0
 
Feb. 19, 2020, 9 p.m. N/A N/A N/A 57.0 ppb (53) N/A 9.0 ppb (13) 90.0 ppb (71) N/A 60.0 μg/m3 (52) N/A 71.0
 
Feb. 19, 2020, 8 p.m. N/A N/A N/A 67.0 ppb (64) N/A 14.0 ppb (20) 65.0 ppb (50) N/A 51.0 μg/m3 (46) N/A 64.0
 
Feb. 19, 2020, 7 p.m. N/A N/A N/A 68.0 ppb (65) N/A 11.0 ppb (16) 52.0 ppb (40) N/A 43.0 μg/m3 (39) N/A 65.0
 
Feb. 19, 2020, 6 p.m. N/A N/A N/A 58.0 ppb (54) N/A 8.0 ppb (11) 36.0 ppb (28) N/A 72.0 μg/m3 (58) N/A 58.0
 
Feb. 19, 2020, 5 p.m. N/A N/A N/A 61.0 ppb (57) N/A 9.0 ppb (13) 18.0 ppb (14) N/A 83.0 μg/m3 (64) N/A 64.0
 
Feb. 19, 2020, 4 p.m. N/A N/A N/A 84.0 ppb (82) N/A 8.0 ppb (11) 3.0 ppb (2) N/A 68.0 μg/m3 (56) N/A 82.0
 
Feb. 19, 2020, 3 p.m. N/A N/A N/A 60.0 ppb (56) N/A 7.0 ppb (10) 1.0 ppb (1) N/A 69.0 μg/m3 (57) N/A 57.0
 
Feb. 19, 2020, 2 p.m. N/A N/A N/A 41.0 ppb (38) N/A 5.0 ppb (7) 0.0 ppb (0) N/A 67.0 μg/m3 (56) N/A 56.0
 
Feb. 19, 2020, 1 p.m. N/A N/A N/A 44.0 ppb (41) N/A 5.0 ppb (7) 0.0 ppb (0) N/A 64.0 μg/m3 (54) N/A 54.0
 
Feb. 19, 2020, noon N/A N/A N/A 44.0 ppb (41) N/A 4.0 ppb (6) 0.0 ppb (0) N/A 46.0 μg/m3 (42) N/A 42.0
 
Feb. 19, 2020, 11 a.m. N/A N/A N/A 41.0 ppb (38) N/A 2.0 ppb (3) 0.0 ppb (0) N/A 47.0 μg/m3 (43) N/A 43.0
 
Feb. 19, 2020, 10 a.m. N/A N/A N/A 41.0 ppb (38) N/A 3.0 ppb (4) 0.0 ppb (0) N/A 41.0 μg/m3 (37) N/A 38.0
 
Feb. 19, 2020, 9 a.m. N/A N/A N/A 38.0 ppb (35) N/A 93.0 ppb (76) 2.0 ppb (2) N/A 38.0 μg/m3 (35) N/A 76.0
 
Feb. 19, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 47.0 μg/m3 (43) N/A 43.0
 
Feb. 19, 2020, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A 1.0
 
Feb. 19, 2020, 6 a.m. N/A N/A N/A 50.0 ppb (46) N/A 4.0 ppb (6) 0.0 ppb (0) N/A 30.0 μg/m3 (27) N/A 46.0
 
Feb. 19, 2020, 5 a.m. N/A N/A N/A 48.0 ppb (44) N/A 2.0 ppb (3) 2.0 ppb (2) N/A 48.0 μg/m3 (44) N/A 44.0
 
Feb. 19, 2020, 4 a.m. N/A N/A N/A 45.0 ppb (42) N/A 2.0 ppb (3) 5.0 ppb (4) N/A 63.0 μg/m3 (54) N/A 54.0
 
Feb. 19, 2020, 3 a.m. N/A N/A N/A 47.0 ppb (44) N/A 2.0 ppb (3) 8.0 ppb (6) N/A 63.0 μg/m3 (54) N/A 54.0
 
Feb. 19, 2020, 2 a.m. N/A N/A N/A 72.0 ppb (69) N/A 7.0 ppb (10) 11.0 ppb (8) N/A 41.0 μg/m3 (37) N/A 69.0
 
Feb. 19, 2020, 1 a.m. N/A N/A N/A 44.0 ppb (41) N/A 8.0 ppb (11) 47.0 ppb (36) N/A 33.0 μg/m3 (30) N/A 41.0
 
Feb. 19, 2020, midnight N/A N/A N/A 20.0 ppb (19) N/A 8.0 ppb (11) 81.0 ppb (63) N/A 34.0 μg/m3 (31) N/A 63.0
 
Feb. 18, 2020, 11 p.m. N/A N/A N/A 18.0 ppb (17) N/A 7.0 ppb (10) 88.0 ppb (69) N/A 26.0 μg/m3 (24) N/A 69.0
 
Feb. 18, 2020, 10 p.m. N/A N/A N/A 19.0 ppb (18) N/A 5.0 ppb (7) 86.0 ppb (68) N/A 29.0 μg/m3 (26) N/A 68.0
 
Feb. 18, 2020, 9 p.m. N/A N/A N/A 21.0 ppb (19) N/A 4.0 ppb (6) 82.0 ppb (64) N/A 46.0 μg/m3 (42) N/A 64.0
 
Feb. 18, 2020, 8 p.m. N/A N/A N/A 35.0 ppb (32) N/A 6.0 ppb (9) 74.0 ppb (57) N/A 49.0 μg/m3 (45) N/A 57.0
 
Feb. 18, 2020, 7 p.m. N/A N/A N/A 51.0 ppb (47) N/A 5.0 ppb (7) 56.0 ppb (43) N/A 65.0 μg/m3 (55) N/A 55.0
 
Feb. 18, 2020, 6 p.m. N/A N/A N/A 87.0 ppb (85) N/A 8.0 ppb (11) 31.0 ppb (24) N/A 60.0 μg/m3 (52) N/A 85.0
 
Feb. 18, 2020, 5 p.m. N/A N/A N/A 87.0 ppb (85) N/A 7.0 ppb (10) 14.0 ppb (11) N/A 40.0 μg/m3 (36) N/A 85.0
 
Feb. 18, 2020, 4 p.m. N/A N/A N/A 65.0 ppb (62) N/A 5.0 ppb (7) 5.0 ppb (4) N/A 30.0 μg/m3 (27) N/A 62.0
 
Feb. 18, 2020, 3 p.m. N/A N/A N/A 37.0 ppb (34) N/A 3.0 ppb (4) 5.0 ppb (4) N/A 44.0 μg/m3 (40) N/A 40.0
 
Feb. 18, 2020, 2 p.m. N/A N/A N/A 37.0 ppb (34) N/A 3.0 ppb (4) 1.0 ppb (1) N/A 39.0 μg/m3 (35) N/A 35.0
 
Feb. 18, 2020, 1 p.m. N/A N/A N/A 37.0 ppb (34) N/A 3.0 ppb (4) 1.0 ppb (1) N/A 34.0 μg/m3 (31) N/A 34.0
 
Feb. 18, 2020, noon N/A N/A N/A 34.0 ppb (31) N/A 2.0 ppb (3) 3.0 ppb (2) N/A 37.0 μg/m3 (34) N/A 34.0
 
Feb. 18, 2020, 11 a.m. N/A N/A N/A 27.0 ppb (25) N/A 2.0 ppb (3) 8.0 ppb (6) N/A 33.0 μg/m3 (30) N/A 30.0
 
Feb. 18, 2020, 10 a.m. N/A N/A N/A 25.0 ppb (23) N/A 2.0 ppb (3) 13.0 ppb (10) N/A 25.0 μg/m3 (23) N/A 23.0
 
Feb. 18, 2020, 9 a.m. N/A N/A N/A 27.0 ppb (25) N/A 1.0 ppb (1) 10.0 ppb (8) N/A 39.0 μg/m3 (35) N/A 35.0
 
Feb. 18, 2020, 8 a.m. N/A N/A N/A 33.0 ppb (31) N/A 2.0 ppb (3) 11.0 ppb (8) N/A 30.0 μg/m3 (27) N/A 31.0
 
Feb. 18, 2020, 7 a.m. N/A N/A N/A 50.0 ppb (46) N/A 3.0 ppb (4) 3.0 ppb (2) N/A N/A N/A 46.0
 
Feb. 18, 2020, 6 a.m. N/A N/A N/A 38.0 ppb (35) N/A 15.0 ppb (21) 3.0 ppb (2) N/A 32.0 μg/m3 (29) N/A 35.0
 
Feb. 18, 2020, 5 a.m. N/A N/A N/A 47.0 ppb (44) N/A 5.0 ppb (7) 6.0 ppb (5) N/A 43.0 μg/m3 (39) N/A 44.0
 
Feb. 18, 2020, 4 a.m. N/A N/A N/A 46.0 ppb (43) N/A 2.0 ppb (3) 13.0 ppb (10) N/A 37.0 μg/m3 (34) N/A 43.0
 
Feb. 18, 2020, 3 a.m. N/A N/A N/A 38.0 ppb (35) N/A 2.0 ppb (3) 22.0 ppb (17) N/A 48.0 μg/m3 (44) N/A 44.0
 
Feb. 18, 2020, 2 a.m. N/A N/A N/A 31.0 ppb (29) N/A 1.0 ppb (1) 32.0 ppb (25) N/A 51.0 μg/m3 (46) N/A 46.0
 
Feb. 18, 2020, 1 a.m. N/A N/A N/A 23.0 ppb (21) N/A 2.0 ppb (3) 52.0 ppb (40) N/A 29.0 μg/m3 (26) N/A 40.0
 
Feb. 18, 2020, midnight N/A N/A N/A 23.0 ppb (21) N/A 4.0 ppb (6) 77.0 ppb (60) N/A 21.0 μg/m3 (19) N/A 60.0
 
Feb. 17, 2020, 11 p.m. N/A N/A N/A 14.0 ppb (13) N/A 4.0 ppb (6) 76.0 ppb (59) N/A 18.0 μg/m3 (16) N/A 59.0
 
Feb. 17, 2020, 10 p.m. N/A N/A N/A 16.0 ppb (15) N/A 3.0 ppb (4) 70.0 ppb (54) N/A 18.0 μg/m3 (16) N/A 54.0
 
Feb. 17, 2020, 9 p.m. N/A N/A N/A 17.0 ppb (16) N/A 3.0 ppb (4) 63.0 ppb (48) N/A 21.0 μg/m3 (19) N/A 48.0
 
Feb. 17, 2020, 8 p.m. N/A N/A N/A 27.0 ppb (25) N/A 3.0 ppb (4) 55.0 ppb (42) N/A 42.0 μg/m3 (38) N/A 42.0
 
Feb. 17, 2020, 7 p.m. N/A N/A N/A 46.0 ppb (43) N/A 3.0 ppb (4) 42.0 ppb (32) N/A 62.0 μg/m3 (54) N/A 54.0
 
Feb. 17, 2020, 5 p.m. N/A N/A N/A 93.0 ppb (91) N/A 8.0 ppb (11) 9.0 ppb (7) N/A 53.0 μg/m3 (48) N/A 91.0
 
Feb. 17, 2020, 4 p.m. N/A N/A N/A 74.0 ppb (71) N/A 8.0 ppb (11) 2.0 ppb (2) N/A 38.0 μg/m3 (35) N/A 71.0
 
Feb. 17, 2020, 3 p.m. N/A N/A N/A 33.0 ppb (31) N/A 6.0 ppb (9) 2.0 ppb (2) N/A 49.0 μg/m3 (45) N/A 45.0
 
Feb. 17, 2020, 2 p.m. N/A N/A N/A 25.0 ppb (23) N/A 5.0 ppb (7) 0.0 ppb (0) N/A 31.0 μg/m3 (28) N/A 28.0
 
Feb. 17, 2020, 1 p.m. N/A N/A N/A 24.0 ppb (22) N/A 5.0 ppb (7) 0.0 ppb (0) N/A 35.0 μg/m3 (32) N/A 32.0
 
Feb. 17, 2020, noon N/A N/A N/A 23.0 ppb (21) N/A 4.0 ppb (6) 0.0 ppb (0) N/A 26.0 μg/m3 (24) N/A 24.0
 
Feb. 17, 2020, 11 a.m. N/A N/A N/A 25.0 ppb (23) N/A 5.0 ppb (7) 0.0 ppb (0) N/A 17.0 μg/m3 (15) N/A 23.0
 
Feb. 17, 2020, 10 a.m. N/A N/A N/A 24.0 ppb (22) N/A 4.0 ppb (6) 0.0 ppb (0) N/A 15.0 μg/m3 (14) N/A 22.0
 
Feb. 17, 2020, 9 a.m. N/A N/A N/A 19.0 ppb (18) N/A 18.0 ppb (26) 6.0 ppb (5) N/A 15.0 μg/m3 (14) N/A 26.0
 
Feb. 17, 2020, 8 a.m. N/A N/A N/A 16.0 ppb (15) N/A 23.0 ppb (33) 9.0 ppb (7) N/A 29.0 μg/m3 (26) N/A 33.0
 
Feb. 17, 2020, 7 a.m. N/A N/A N/A 21.0 ppb (19) N/A 28.0 ppb (40) 7.0 ppb (5) N/A N/A N/A 40.0
 
Feb. 17, 2020, 6 a.m. N/A N/A N/A 23.0 ppb (21) N/A 15.0 ppb (21) 6.0 ppb (5) N/A 25.0 μg/m3 (23) N/A 23.0
 
Feb. 17, 2020, 5 a.m. N/A N/A N/A 25.0 ppb (23) N/A 2.0 ppb (3) 2.0 ppb (2) N/A 19.0 μg/m3 (17) N/A 23.0
 
Feb. 17, 2020, 4 a.m. N/A N/A N/A 21.0 ppb (19) N/A 1.0 ppb (1) 6.0 ppb (5) N/A 21.0 μg/m3 (19) N/A 19.0
 
Feb. 17, 2020, 3 a.m. N/A N/A N/A 20.0 ppb (19) N/A 1.0 ppb (1) 6.0 ppb (5) N/A 33.0 μg/m3 (30) N/A 30.0
 
Feb. 17, 2020, 2 a.m. N/A N/A N/A 26.0 ppb (24) N/A 1.0 ppb (1) 7.0 ppb (5) N/A 26.0 μg/m3 (24) N/A 24.0
 
Feb. 17, 2020, 1 a.m. N/A N/A N/A 18.0 ppb (17) N/A 1.0 ppb (1) 18.0 ppb (14) N/A 15.0 μg/m3 (14) N/A 17.0
 
Feb. 17, 2020, midnight N/A N/A N/A 11.0 ppb (10) N/A 1.0 ppb (1) 29.0 ppb (22) N/A 20.0 μg/m3 (18) N/A 22.0
 
Feb. 16, 2020, 11 p.m. N/A N/A N/A 9.0 ppb (8) N/A 2.0 ppb (3) 40.0 ppb (31) N/A 8.0 μg/m3 (7) N/A 31.0
 
Feb. 16, 2020, 10 p.m. N/A N/A N/A 7.0 ppb (6) N/A 1.0 ppb (1) 43.0 ppb (33) N/A 6.0 μg/m3 (5) N/A 33.0
 
Feb. 16, 2020, 9 p.m. N/A N/A N/A 8.0 ppb (7) N/A 1.0 ppb (1) 42.0 ppb (32) N/A 28.0 μg/m3 (25) N/A 32.0
 
Feb. 16, 2020, 8 p.m. N/A N/A N/A 17.0 ppb (16) N/A 3.0 ppb (4) 46.0 ppb (35) N/A 48.0 μg/m3 (44) N/A 44.0
 
Feb. 16, 2020, 7 p.m. N/A N/A N/A 38.0 ppb (35) N/A 6.0 ppb (9) 61.0 ppb (47) N/A 43.0 μg/m3 (39) N/A 47.0
 
Feb. 16, 2020, 6 p.m. N/A N/A N/A 45.0 ppb (42) N/A 7.0 ppb (10) 46.0 ppb (35) N/A 41.0 μg/m3 (37) N/A 42.0
 
Feb. 16, 2020, 5 p.m. N/A N/A N/A 43.0 ppb (40) N/A 10.0 ppb (14) 28.0 ppb (22) N/A 48.0 μg/m3 (44) N/A 44.0
 
Feb. 16, 2020, 4 p.m. N/A N/A N/A 44.0 ppb (41) N/A 11.0 ppb (16) 13.0 ppb (10) N/A 36.0 μg/m3 (33) N/A 41.0
 
Feb. 16, 2020, 3 p.m. N/A N/A N/A 51.0 ppb (47) N/A 12.0 ppb (17) 3.0 ppb (2) N/A 33.0 μg/m3 (30) N/A 47.0
 
Feb. 16, 2020, 2 p.m. N/A N/A N/A 38.0 ppb (35) N/A 5.0 ppb (7) 1.0 ppb (1) N/A 35.0 μg/m3 (32) N/A 35.0
 
Feb. 16, 2020, 1 p.m. N/A N/A N/A 31.0 ppb (29) N/A 3.0 ppb (4) 0.0 ppb (0) N/A 41.0 μg/m3 (37) N/A 37.0
 
Feb. 16, 2020, noon N/A N/A N/A 31.0 ppb (29) N/A 3.0 ppb (4) 0.0 ppb (0) N/A 43.0 μg/m3 (39) N/A 39.0
 
Feb. 16, 2020, 11 a.m. N/A N/A N/A 32.0 ppb (30) N/A 4.0 ppb (6) 0.0 ppb (0) N/A 37.0 μg/m3 (34) N/A 34.0
 
Feb. 16, 2020, 10 a.m. N/A N/A N/A 35.0 ppb (32) N/A 4.0 ppb (6) 0.0 ppb (0) N/A 33.0 μg/m3 (30) N/A 32.0
 
Feb. 16, 2020, 9 a.m. N/A N/A N/A 39.0 ppb (36) N/A 5.0 ppb (7) 3.0 ppb (2) N/A 34.0 μg/m3 (31) N/A 36.0
 
Feb. 16, 2020, 8 a.m. N/A N/A N/A 39.0 ppb (36) N/A 4.0 ppb (6) 4.0 ppb (3) N/A 36.0 μg/m3 (33) N/A 36.0
 
Feb. 16, 2020, 7 a.m. N/A N/A N/A 39.0 ppb (36) N/A 4.0 ppb (6) 5.0 ppb (4) N/A N/A N/A 36.0
 
Feb. 16, 2020, 6 a.m. N/A N/A N/A 40.0 ppb (37) N/A 3.0 ppb (4) 2.0 ppb (2) N/A 40.0 μg/m3 (36) N/A 37.0
 
Feb. 16, 2020, 5 a.m. N/A N/A N/A 49.0 ppb (45) N/A 3.0 ppb (4) 2.0 ppb (2) N/A 28.0 μg/m3 (25) N/A 45.0
 
Feb. 16, 2020, 4 a.m. N/A N/A N/A 39.0 ppb (36) N/A 3.0 ppb (4) 11.0 ppb (8) N/A 19.0 μg/m3 (17) N/A 36.0
 
Feb. 16, 2020, 3 a.m. N/A N/A N/A 25.0 ppb (23) N/A 2.0 ppb (3) 20.0 ppb (15) N/A 49.0 μg/m3 (45) N/A 45.0
 
Feb. 16, 2020, 2 a.m. N/A N/A N/A 22.0 ppb (20) N/A 3.0 ppb (4) 35.0 ppb (27) N/A 54.0 μg/m3 (49) N/A 49.0
 
Feb. 16, 2020, 1 a.m. N/A N/A N/A 33.0 ppb (31) N/A 7.0 ppb (10) 54.0 ppb (42) N/A 47.0 μg/m3 (43) N/A 43.0
 
Feb. 16, 2020, midnight N/A N/A N/A 25.0 ppb (23) N/A 3.0 ppb (4) 83.0 ppb (65) N/A 37.0 μg/m3 (34) N/A 65.0
 
Feb. 15, 2020, 11 p.m. N/A N/A N/A 24.0 ppb (22) N/A 3.0 ppb (4) 84.0 ppb (66) N/A 46.0 μg/m3 (42) N/A 66.0
 
Feb. 15, 2020, 10 p.m. N/A N/A N/A 24.0 ppb (22) N/A 3.0 ppb (4) 84.0 ppb (66) N/A 33.0 μg/m3 (30) N/A 66.0
 
Feb. 15, 2020, 9 p.m. N/A N/A N/A 25.0 ppb (23) N/A 4.0 ppb (6) 74.0 ppb (57) N/A 48.0 μg/m3 (44) N/A 57.0
 
Feb. 15, 2020, 8 p.m. N/A N/A N/A 25.0 ppb (23) N/A 4.0 ppb (6) 67.0 ppb (52) N/A 69.0 μg/m3 (57) N/A 57.0
 
Feb. 15, 2020, 7 p.m. N/A N/A N/A 41.0 ppb (38) N/A 5.0 ppb (7) 58.0 ppb (45) N/A 79.0 μg/m3 (62) N/A 62.0
 
Feb. 15, 2020, 6 p.m. N/A N/A N/A 52.0 ppb (48) N/A 7.0 ppb (10) 35.0 ppb (27) N/A 78.0 μg/m3 (62) N/A 62.0
 
Feb. 15, 2020, 5 p.m. N/A N/A N/A 54.0 ppb (50) N/A 10.0 ppb (14) 17.0 ppb (13) N/A 69.0 μg/m3 (57) N/A 57.0
 
Feb. 15, 2020, 4 p.m. N/A N/A N/A 49.0 ppb (45) N/A 12.0 ppb (17) 8.0 ppb (6) N/A 49.0 μg/m3 (45) N/A 45.0
 
Feb. 15, 2020, 3 p.m. N/A N/A N/A 37.0 ppb (34) N/A 19.0 ppb (27) 3.0 ppb (2) N/A 48.0 μg/m3 (44) N/A 44.0
 
Feb. 15, 2020, 2 p.m. N/A N/A N/A 33.0 ppb (31) N/A 21.0 ppb (30) 1.0 ppb (1) N/A 40.0 μg/m3 (36) N/A 36.0
 
Feb. 15, 2020, 1 p.m. N/A N/A N/A 34.0 ppb (31) N/A 20.0 ppb (29) 1.0 ppb (1) N/A 38.0 μg/m3 (35) N/A 35.0
 
Feb. 15, 2020, noon N/A N/A N/A 35.0 ppb (32) N/A 12.0 ppb (17) 1.0 ppb (1) N/A 41.0 μg/m3 (37) N/A 37.0
 
Feb. 15, 2020, 11 a.m. N/A N/A N/A 36.0 ppb (33) N/A 5.0 ppb (7) 0.0 ppb (0) N/A 42.0 μg/m3 (38) N/A 38.0
 
Feb. 15, 2020, 10 a.m. N/A N/A N/A 38.0 ppb (35) N/A 2.0 ppb (3) 0.0 ppb (0) N/A 57.0 μg/m3 (51) N/A 51.0
 
Feb. 15, 2020, 9 a.m. N/A N/A N/A 41.0 ppb (38) N/A 2.0 ppb (3) 0.0 ppb (0) N/A 37.0 μg/m3 (34) N/A 38.0
 
Feb. 15, 2020, 8 a.m. N/A N/A N/A 43.0 ppb (40) N/A 2.0 ppb (3) 0.0 ppb (0) N/A 37.0 μg/m3 (34) N/A 40.0
 
Feb. 15, 2020, 7 a.m. N/A N/A N/A 44.0 ppb (41) N/A 2.0 ppb (3) 0.0 ppb (0) N/A N/A N/A 41.0
 
Feb. 15, 2020, 6 a.m. N/A N/A N/A 52.0 ppb (48) N/A 3.0 ppb (4) 0.0 ppb (0) N/A 45.0 μg/m3 (41) N/A 48.0
 
Feb. 15, 2020, 5 a.m. N/A N/A N/A 52.0 ppb (48) N/A 3.0 ppb (4) 1.0 ppb (1) N/A 24.0 μg/m3 (22) N/A 48.0
 
Feb. 15, 2020, 4 a.m. N/A N/A N/A 39.0 ppb (36) N/A 3.0 ppb (4) 11.0 ppb (8) N/A 30.0 μg/m3 (27) N/A 36.0