AQSQID: 800090072

Site Name: Uam Iztapalapa

Location: Mexico City (Centro De Investigación), MX

Reporting: True, Located: True

Current AQI: 42.0

Mexico City (Centro De Investigación) MX, MX: 19.3607, -99.0738

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Feb. 28, 2020, 6 a.m. N/A N/A N/A 27.0 ppb (25) N/A 2.0 ppb (3) 16.0 ppb (12) 0.2 ppb (2) 39.0 μg/m3 (35) 10.0 μg/m3 (42) 42.0
 
Feb. 28, 2020, 5 a.m. N/A N/A N/A 22.0 ppb (20) N/A 2.0 ppb (3) 22.0 ppb (17) 0.1 ppb (1) 42.0 μg/m3 (38) 16.0 μg/m3 (59) 59.0
 
Feb. 28, 2020, 4 a.m. N/A N/A N/A 21.0 ppb (19) N/A 3.0 ppb (4) 29.0 ppb (22) 0.2 ppb (2) 50.0 μg/m3 (45) 14.0 μg/m3 (54) 54.0
 
Feb. 28, 2020, 3 a.m. N/A N/A N/A 26.0 ppb (24) N/A 4.0 ppb (6) 29.0 ppb (22) 0.3 ppb (3) 53.0 μg/m3 (48) 16.0 μg/m3 (59) 59.0
 
Feb. 28, 2020, 2 a.m. N/A N/A N/A 21.0 ppb (19) N/A 4.0 ppb (6) 42.0 ppb (32) 0.2 ppb (2) 47.0 μg/m3 (43) 11.0 μg/m3 (46) 46.0
 
Feb. 28, 2020, 1 a.m. N/A N/A N/A 17.0 ppb (16) N/A 4.0 ppb (6) 53.0 ppb (41) 0.2 ppb (2) 52.0 μg/m3 (47) 14.0 μg/m3 (54) 54.0
 
Feb. 28, 2020, midnight N/A N/A N/A 13.0 ppb (12) N/A 3.0 ppb (4) 61.0 ppb (47) 0.1 ppb (1) 63.0 μg/m3 (54) 14.0 μg/m3 (54) 54.0
 
Feb. 27, 2020, 11 p.m. N/A N/A N/A 7.0 ppb (6) N/A 2.0 ppb (3) 58.0 ppb (45) 0.0 ppb (0) 66.0 μg/m3 (56) 13.0 μg/m3 (52) 56.0
 
Feb. 27, 2020, 10 p.m. N/A N/A N/A 6.0 ppb (6) N/A 2.0 ppb (3) 58.0 ppb (45) N/A 54.0 μg/m3 (49) 11.0 μg/m3 (46) 49.0
 
Feb. 27, 2020, 9 p.m. N/A N/A N/A 8.0 ppb (7) N/A 2.0 ppb (3) 65.0 ppb (50) 0.0 ppb (0) 69.0 μg/m3 (57) 27.0 μg/m3 (82) 82.0
 
Feb. 27, 2020, 8 p.m. N/A N/A N/A 16.0 ppb (15) N/A 4.0 ppb (6) 73.0 ppb (57) 0.2 ppb (2) 94.0 μg/m3 (70) 45.0 μg/m3 (124) 124.0
 
Feb. 27, 2020, 7 p.m. N/A N/A N/A 31.0 ppb (29) N/A 7.0 ppb (10) 60.0 ppb (46) 0.5 ppb (6) 88.0 μg/m3 (66) 46.0 μg/m3 (126) 126.0
 
Feb. 27, 2020, 6 p.m. N/A N/A N/A 36.0 ppb (33) N/A 10.0 ppb (14) 40.0 ppb (31) 0.6 ppb (7) 83.0 μg/m3 (64) 46.0 μg/m3 (126) 126.0
 
Feb. 27, 2020, 5 p.m. N/A N/A N/A 31.0 ppb (29) N/A 13.0 ppb (19) 26.0 ppb (20) 0.6 ppb (7) 71.0 μg/m3 (58) 40.0 μg/m3 (111) 111.0
 
Feb. 27, 2020, 4 p.m. N/A N/A N/A 26.0 ppb (24) N/A 18.0 ppb (26) 16.0 ppb (12) 0.6 ppb (7) 79.0 μg/m3 (62) 47.0 μg/m3 (129) 129.0
 
Feb. 27, 2020, 3 p.m. N/A N/A N/A 24.0 ppb (22) N/A 23.0 ppb (33) 9.0 ppb (7) 0.7 ppb (8) 66.0 μg/m3 (56) 41.0 μg/m3 (114) 114.0
 
Feb. 27, 2020, 2 p.m. N/A N/A N/A 26.0 ppb (24) N/A 14.0 ppb (20) 4.0 ppb (3) 0.6 ppb (7) 53.0 μg/m3 (48) 32.0 μg/m3 (93) 93.0
 
Feb. 27, 2020, 1 p.m. N/A N/A N/A 27.0 ppb (25) N/A 8.0 ppb (11) 2.0 ppb (2) 0.4 ppb (4) 40.0 μg/m3 (36) 24.0 μg/m3 (76) 76.0
 
Feb. 27, 2020, noon N/A N/A N/A 26.0 ppb (24) N/A 7.0 ppb (10) 4.0 ppb (3) 0.2 ppb (2) 37.0 μg/m3 (34) 21.0 μg/m3 (69) 69.0
 
Feb. 27, 2020, 11 a.m. N/A N/A N/A 22.0 ppb (20) N/A 8.0 ppb (11) 7.0 ppb (5) 0.1 ppb (1) 30.0 μg/m3 (27) 19.0 μg/m3 (65) 65.0
 
Feb. 27, 2020, 10 a.m. N/A N/A N/A 17.0 ppb (16) N/A 5.0 ppb (7) 13.0 ppb (10) 0.1 ppb (1) 32.0 μg/m3 (29) 19.0 μg/m3 (65) 65.0
 
Feb. 27, 2020, 9 a.m. N/A N/A N/A 14.0 ppb (13) N/A 2.0 ppb (3) 19.0 ppb (15) 0.1 ppb (1) 47.0 μg/m3 (43) 23.0 μg/m3 (73) 73.0
 
Feb. 27, 2020, 8 a.m. N/A N/A N/A 19.0 ppb (18) N/A 2.0 ppb (3) 15.0 ppb (12) 0.1 ppb (1) 42.0 μg/m3 (38) 14.0 μg/m3 (54) 54.0
 
Feb. 27, 2020, 7 a.m. N/A N/A N/A 22.0 ppb (20) N/A 2.0 ppb (3) 14.0 ppb (11) 0.1 ppb (1) 39.0 μg/m3 (35) 6.0 μg/m3 (25) 35.0
 
Feb. 27, 2020, 6 a.m. N/A N/A N/A 26.0 ppb (24) N/A 2.0 ppb (3) 13.0 ppb (10) 0.2 ppb (2) 47.0 μg/m3 (43) 8.0 μg/m3 (33) 43.0
 
Feb. 27, 2020, 5 a.m. N/A N/A N/A 24.0 ppb (22) N/A 2.0 ppb (3) 16.0 ppb (12) 0.1 ppb (1) 81.0 μg/m3 (63) 18.0 μg/m3 (63) 63.0
 
Feb. 27, 2020, 4 a.m. N/A N/A N/A 29.0 ppb (27) N/A 3.0 ppb (4) 13.0 ppb (10) 0.2 ppb (2) 113.0 μg/m3 (79) 20.0 μg/m3 (67) 79.0
 
Feb. 27, 2020, 3 a.m. N/A N/A N/A 45.0 ppb (42) N/A 9.0 ppb (13) 6.0 ppb (5) 0.6 ppb (7) 118.0 μg/m3 (82) 24.0 μg/m3 (76) 82.0
 
Feb. 27, 2020, 2 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) N/A 0.5 ppb (6) 39.0 μg/m3 (35) 11.0 μg/m3 (46) 46.0
 
Feb. 27, 2020, 1 a.m. N/A N/A N/A 13.0 ppb (12) N/A 2.0 ppb (3) 58.0 ppb (45) 0.1 ppb (1) 53.0 μg/m3 (48) 18.0 μg/m3 (63) 63.0
 
Feb. 27, 2020, midnight N/A N/A N/A 10.0 ppb (9) N/A 2.0 ppb (3) 59.0 ppb (45) 0.1 ppb (1) 44.0 μg/m3 (40) 15.0 μg/m3 (56) 56.0
 
Feb. 26, 2020, 11 p.m. N/A N/A N/A 6.0 ppb (6) N/A 2.0 ppb (3) 56.0 ppb (43) N/A 44.0 μg/m3 (40) 11.0 μg/m3 (46) 46.0
 
Feb. 26, 2020, 10 p.m. N/A N/A N/A 7.0 ppb (6) N/A 2.0 ppb (3) 59.0 ppb (45) 0.0 ppb (0) 74.0 μg/m3 (60) 28.0 μg/m3 (84) 84.0
 
Feb. 26, 2020, 9 p.m. N/A N/A N/A 14.0 ppb (13) N/A 5.0 ppb (7) 99.0 ppb (78) 0.2 ppb (2) 70.0 μg/m3 (58) 29.0 μg/m3 (86) 86.0
 
Feb. 26, 2020, 8 p.m. N/A N/A N/A 16.0 ppb (15) N/A 4.0 ppb (6) 97.0 ppb (77) 0.2 ppb (2) 51.0 μg/m3 (46) 24.0 μg/m3 (76) 77.0
 
Feb. 26, 2020, 7 p.m. N/A N/A N/A 16.0 ppb (15) N/A 2.0 ppb (3) 73.0 ppb (57) 0.2 ppb (2) 52.0 μg/m3 (47) 27.0 μg/m3 (82) 82.0
 
Feb. 26, 2020, 6 p.m. N/A N/A N/A 17.0 ppb (16) N/A 2.0 ppb (3) 54.0 ppb (42) 0.2 ppb (2) 60.0 μg/m3 (52) 27.0 μg/m3 (82) 82.0
 
Feb. 26, 2020, 5 p.m. N/A N/A N/A 31.0 ppb (29) N/A 5.0 ppb (7) 34.0 ppb (26) 0.4 ppb (4) 76.0 μg/m3 (60) 32.0 μg/m3 (93) 93.0
 
Feb. 26, 2020, 4 p.m. N/A N/A N/A 38.0 ppb (35) N/A 9.0 ppb (13) 18.0 ppb (14) 0.7 ppb (8) 66.0 μg/m3 (56) 26.0 μg/m3 (80) 80.0
 
Feb. 26, 2020, 3 p.m. N/A N/A N/A 40.0 ppb (37) N/A 13.0 ppb (19) 6.0 ppb (5) 1.2 ppb (13) 67.0 μg/m3 (56) 26.0 μg/m3 (80) 80.0
 
Feb. 26, 2020, 2 p.m. N/A N/A N/A 33.0 ppb (31) N/A 8.0 ppb (11) 3.0 ppb (2) 1.1 ppb (12) 40.0 μg/m3 (36) 16.0 μg/m3 (59) 59.0
 
Feb. 26, 2020, 1 p.m. N/A N/A N/A 33.0 ppb (31) N/A 2.0 ppb (3) 3.0 ppb (2) 0.6 ppb (7) 30.0 μg/m3 (27) 15.0 μg/m3 (56) 56.0
 
Feb. 26, 2020, noon N/A N/A N/A 29.0 ppb (27) N/A 2.0 ppb (3) 4.0 ppb (3) 0.2 ppb (2) 21.0 μg/m3 (19) 9.0 μg/m3 (38) 38.0
 
Feb. 26, 2020, 11 a.m. N/A N/A N/A 21.0 ppb (19) N/A 2.0 ppb (3) 11.0 ppb (8) 0.0 ppb (0) 28.0 μg/m3 (25) 13.0 μg/m3 (52) 52.0
 
Feb. 26, 2020, 10 a.m. N/A N/A N/A 19.0 ppb (18) N/A 2.0 ppb (3) 13.0 ppb (10) 0.0 ppb (0) 38.0 μg/m3 (35) 16.0 μg/m3 (59) 59.0
 
Feb. 26, 2020, 9 a.m. N/A N/A N/A 19.0 ppb (18) N/A 2.0 ppb (3) 14.0 ppb (11) 0.1 ppb (1) 45.0 μg/m3 (41) 23.0 μg/m3 (73) 73.0
 
Feb. 26, 2020, 8 a.m. N/A N/A N/A 31.0 ppb (29) N/A 2.0 ppb (3) 4.0 ppb (3) 0.3 ppb (3) 38.0 μg/m3 (35) 14.0 μg/m3 (54) 54.0
 
Feb. 26, 2020, 7 a.m. N/A N/A N/A 35.0 ppb (32) N/A 2.0 ppb (3) 3.0 ppb (2) 0.4 ppb (4) 41.0 μg/m3 (37) 18.0 μg/m3 (63) 63.0
 
Feb. 26, 2020, 6 a.m. N/A N/A N/A 37.0 ppb (34) N/A 2.0 ppb (3) 4.0 ppb (3) 0.5 ppb (6) 28.0 μg/m3 (25) 11.0 μg/m3 (46) 46.0
 
Feb. 26, 2020, 5 a.m. N/A N/A N/A 28.0 ppb (26) N/A 1.0 ppb (1) 13.0 ppb (10) 0.3 ppb (3) 22.0 μg/m3 (20) 10.0 μg/m3 (42) 42.0
 
Feb. 26, 2020, 4 a.m. N/A N/A N/A 19.0 ppb (18) N/A 1.0 ppb (1) 24.0 ppb (18) 0.1 ppb (1) 24.0 μg/m3 (22) 8.0 μg/m3 (33) 33.0
 
Feb. 26, 2020, 3 a.m. N/A N/A N/A 21.0 ppb (19) N/A 1.0 ppb (1) 26.0 ppb (20) 0.2 ppb (2) 33.0 μg/m3 (30) 15.0 μg/m3 (56) 56.0
 
Feb. 26, 2020, 2 a.m. N/A N/A N/A 16.0 ppb (15) N/A 1.0 ppb (1) 36.0 ppb (28) 0.1 ppb (1) 31.0 μg/m3 (28) 8.0 μg/m3 (33) 33.0
 
Feb. 26, 2020, 1 a.m. N/A N/A N/A 11.0 ppb (10) N/A 1.0 ppb (1) 43.0 ppb (33) 0.1 ppb (1) 35.0 μg/m3 (32) 9.0 μg/m3 (38) 38.0
 
Feb. 26, 2020, midnight N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) 48.0 ppb (37) 0.1 ppb (1) 38.0 μg/m3 (35) 12.0 μg/m3 (50) 50.0
 
Feb. 25, 2020, 11 p.m. N/A N/A N/A 7.0 ppb (6) N/A 1.0 ppb (1) 50.0 ppb (38) 0.1 ppb (1) 51.0 μg/m3 (46) 10.0 μg/m3 (42) 46.0
 
Feb. 25, 2020, 10 p.m. N/A N/A N/A 7.0 ppb (6) N/A 2.0 ppb (3) 51.0 ppb (39) 0.1 ppb (1) 80.0 μg/m3 (62) 16.0 μg/m3 (59) 62.0
 
Feb. 25, 2020, 9 p.m. N/A N/A N/A 7.0 ppb (6) N/A 1.0 ppb (1) 52.0 ppb (40) 0.1 ppb (1) 89.0 μg/m3 (67) 11.0 μg/m3 (46) 67.0
 
Feb. 25, 2020, 8 p.m. N/A N/A N/A 7.0 ppb (6) N/A 1.0 ppb (1) 51.0 ppb (39) 0.0 ppb (0) 114.0 μg/m3 (80) 14.0 μg/m3 (54) 80.0
 
Feb. 25, 2020, 7 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) 42.0 ppb (32) 0.0 ppb (0) 82.0 μg/m3 (64) 12.0 μg/m3 (50) 64.0
 
Feb. 25, 2020, 6 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) 39.0 ppb (30) N/A 45.0 μg/m3 (41) 11.0 μg/m3 (46) 46.0
 
Feb. 25, 2020, 5 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) 44.0 ppb (34) 0.0 ppb (0) 51.0 μg/m3 (46) 12.0 μg/m3 (50) 50.0
 
Feb. 25, 2020, 4 p.m. N/A N/A N/A 15.0 ppb (14) N/A 1.0 ppb (1) 36.0 ppb (28) 0.2 ppb (2) 86.0 μg/m3 (66) 28.0 μg/m3 (84) 84.0
 
Feb. 25, 2020, 3 p.m. N/A N/A N/A 52.0 ppb (48) N/A 4.0 ppb (6) 8.0 ppb (6) 2.0 ppb (22) 61.0 μg/m3 (53) 21.0 μg/m3 (69) 69.0
 
Feb. 25, 2020, 2 p.m. N/A N/A N/A 40.0 ppb (37) N/A 3.0 ppb (4) 4.0 ppb (3) 1.5 ppb (17) 35.0 μg/m3 (32) 15.0 μg/m3 (56) 56.0
 
Feb. 25, 2020, 1 p.m. N/A N/A N/A 37.0 ppb (34) N/A 2.0 ppb (3) 4.0 ppb (3) 0.6 ppb (7) 23.0 μg/m3 (21) 12.0 μg/m3 (50) 50.0
 
Feb. 25, 2020, noon N/A N/A N/A 27.0 ppb (25) N/A 2.0 ppb (3) 10.0 ppb (8) 0.2 ppb (2) 24.0 μg/m3 (22) 11.0 μg/m3 (46) 46.0
 
Feb. 25, 2020, 11 a.m. N/A N/A N/A 13.0 ppb (12) N/A 2.0 ppb (3) 24.0 ppb (18) 0.0 ppb (0) 24.0 μg/m3 (22) 12.0 μg/m3 (50) 50.0
 
Feb. 25, 2020, 10 a.m. N/A N/A N/A 9.0 ppb (8) N/A 2.0 ppb (3) 31.0 ppb (24) N/A 30.0 μg/m3 (27) 17.0 μg/m3 (61) 61.0
 
Feb. 25, 2020, 9 a.m. N/A N/A N/A 10.0 ppb (9) N/A 2.0 ppb (3) 30.0 ppb (23) 0.0 ppb (0) 39.0 μg/m3 (35) 17.0 μg/m3 (61) 61.0
 
Feb. 25, 2020, 8 a.m. N/A N/A N/A 12.0 ppb (11) N/A 2.0 ppb (3) 31.0 ppb (24) 0.1 ppb (1) 38.0 μg/m3 (35) 13.0 μg/m3 (52) 52.0
 
Feb. 25, 2020, 7 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 31.0 μg/m3 (28) 10.0 μg/m3 (42) 42.0
 
Feb. 25, 2020, 6 a.m. N/A N/A N/A 27.0 ppb (25) N/A 2.0 ppb (3) 18.0 ppb (14) 0.3 ppb (3) 29.0 μg/m3 (26) 14.0 μg/m3 (54) 54.0
 
Feb. 25, 2020, 5 a.m. N/A N/A N/A 25.0 ppb (23) N/A 2.0 ppb (3) 22.0 ppb (17) 0.3 ppb (3) 52.0 μg/m3 (47) 19.0 μg/m3 (65) 65.0
 
Feb. 25, 2020, 4 a.m. N/A N/A N/A 24.0 ppb (22) N/A 2.0 ppb (3) 30.0 ppb (23) 0.3 ppb (3) 41.0 μg/m3 (37) 14.0 μg/m3 (54) 54.0
 
Feb. 25, 2020, 3 a.m. N/A N/A N/A 22.0 ppb (20) N/A 2.0 ppb (3) 37.0 ppb (28) 0.3 ppb (3) 37.0 μg/m3 (34) 13.0 μg/m3 (52) 52.0
 
Feb. 25, 2020, 2 a.m. N/A N/A N/A 15.0 ppb (14) N/A 2.0 ppb (3) 47.0 ppb (36) 0.2 ppb (2) 54.0 μg/m3 (49) 16.0 μg/m3 (59) 59.0
 
Feb. 25, 2020, 1 a.m. N/A N/A N/A 13.0 ppb (12) N/A 2.0 ppb (3) 58.0 ppb (45) 0.1 ppb (1) 56.0 μg/m3 (50) 11.0 μg/m3 (46) 50.0
 
Feb. 25, 2020, midnight N/A N/A N/A 12.0 ppb (11) N/A 2.0 ppb (3) 64.0 ppb (49) 0.2 ppb (2) 67.0 μg/m3 (56) 15.0 μg/m3 (56) 56.0
 
Feb. 24, 2020, 11 p.m. N/A N/A N/A 10.0 ppb (9) N/A 2.0 ppb (3) 70.0 ppb (54) 0.1 ppb (1) 63.0 μg/m3 (54) 12.0 μg/m3 (50) 54.0
 
Feb. 24, 2020, 10 p.m. N/A N/A N/A 10.0 ppb (9) N/A 2.0 ppb (3) 81.0 ppb (63) 0.1 ppb (1) 76.0 μg/m3 (60) 16.0 μg/m3 (59) 63.0
 
Feb. 24, 2020, 9 p.m. N/A N/A N/A 10.0 ppb (9) N/A 2.0 ppb (3) 81.0 ppb (63) 0.1 ppb (1) 63.0 μg/m3 (54) 10.0 μg/m3 (42) 63.0
 
Feb. 24, 2020, 8 p.m. N/A N/A N/A 7.0 ppb (6) N/A 2.0 ppb (3) 69.0 ppb (53) 0.1 ppb (1) 50.0 μg/m3 (45) 12.0 μg/m3 (50) 53.0
 
Feb. 24, 2020, 7 p.m. N/A N/A N/A 7.0 ppb (6) N/A 2.0 ppb (3) 56.0 ppb (43) 0.0 ppb (0) 72.0 μg/m3 (58) 12.0 μg/m3 (50) 58.0
 
Feb. 24, 2020, 6 p.m. N/A N/A N/A 6.0 ppb (6) N/A 2.0 ppb (3) 54.0 ppb (42) 0.0 ppb (0) 89.0 μg/m3 (67) 15.0 μg/m3 (56) 67.0
 
Feb. 24, 2020, 5 p.m. N/A N/A N/A 10.0 ppb (9) N/A 3.0 ppb (4) 57.0 ppb (44) 0.1 ppb (1) 112.0 μg/m3 (78) 28.0 μg/m3 (84) 84.0
 
Feb. 24, 2020, 4 p.m. N/A N/A N/A 25.0 ppb (23) N/A 3.0 ppb (4) 38.0 ppb (29) 0.5 ppb (6) 85.0 μg/m3 (65) 28.0 μg/m3 (84) 84.0
 
Feb. 24, 2020, 3 p.m. N/A N/A N/A 39.0 ppb (36) N/A 3.0 ppb (4) 14.0 ppb (11) 1.0 ppb (11) 83.0 μg/m3 (64) 30.0 μg/m3 (88) 88.0
 
Feb. 24, 2020, 2 p.m. N/A N/A N/A 46.0 ppb (43) N/A 4.0 ppb (6) 4.0 ppb (3) 2.0 ppb (22) 59.0 μg/m3 (52) 27.0 μg/m3 (82) 82.0
 
Feb. 24, 2020, 1 p.m. N/A N/A N/A 42.0 ppb (39) N/A 2.0 ppb (3) 3.0 ppb (2) 1.0 ppb (11) 54.0 μg/m3 (49) 28.0 μg/m3 (84) 84.0
 
Feb. 24, 2020, noon N/A N/A N/A 38.0 ppb (35) N/A 2.0 ppb (3) 6.0 ppb (5) 0.6 ppb (7) 51.0 μg/m3 (46) 26.0 μg/m3 (80) 80.0
 
Feb. 24, 2020, 11 a.m. N/A N/A N/A 26.0 ppb (24) N/A 2.0 ppb (3) 18.0 ppb (14) 0.4 ppb (4) 58.0 μg/m3 (52) 27.0 μg/m3 (82) 82.0
 
Feb. 24, 2020, 10 a.m. N/A N/A N/A 37.0 ppb (34) N/A 2.0 ppb (3) 11.0 ppb (8) 0.5 ppb (6) 64.0 μg/m3 (54) 29.0 μg/m3 (86) 86.0
 
Feb. 24, 2020, 9 a.m. N/A N/A N/A 53.0 ppb (49) N/A 3.0 ppb (4) 3.0 ppb (2) 0.8 ppb (9) 65.0 μg/m3 (55) 29.0 μg/m3 (86) 86.0
 
Feb. 24, 2020, 8 a.m. N/A N/A N/A 52.0 ppb (48) N/A 3.0 ppb (4) 4.0 ppb (3) 0.8 ppb (9) 54.0 μg/m3 (49) 25.0 μg/m3 (78) 78.0
 
Feb. 24, 2020, 7 a.m. N/A N/A N/A 38.0 ppb (35) N/A 2.0 ppb (3) 18.0 ppb (14) 0.6 ppb (7) 55.0 μg/m3 (50) 25.0 μg/m3 (78) 78.0
 
Feb. 24, 2020, 6 a.m. N/A N/A N/A 32.0 ppb (30) N/A 2.0 ppb (3) 29.0 ppb (22) 0.5 ppb (6) 53.0 μg/m3 (48) 24.0 μg/m3 (76) 76.0
 
Feb. 24, 2020, 5 a.m. N/A N/A N/A 28.0 ppb (26) N/A 2.0 ppb (3) 38.0 ppb (29) 0.4 ppb (4) 38.0 μg/m3 (35) 16.0 μg/m3 (59) 59.0
 
Feb. 24, 2020, 4 a.m. N/A N/A N/A 21.0 ppb (19) N/A 2.0 ppb (3) 50.0 ppb (38) 0.3 ppb (3) 42.0 μg/m3 (38) 16.0 μg/m3 (59) 59.0
 
Feb. 24, 2020, 3 a.m. N/A N/A N/A 17.0 ppb (16) N/A 2.0 ppb (3) 59.0 ppb (45) 0.3 ppb (3) 52.0 μg/m3 (47) 18.0 μg/m3 (63) 63.0
 
Feb. 24, 2020, 2 a.m. N/A N/A N/A 14.0 ppb (13) N/A 2.0 ppb (3) 63.0 ppb (48) 0.2 ppb (2) 51.0 μg/m3 (46) 14.0 μg/m3 (54) 54.0
 
Feb. 24, 2020, 1 a.m. N/A N/A N/A 12.0 ppb (11) N/A 2.0 ppb (3) 60.0 ppb (46) 0.1 ppb (1) 73.0 μg/m3 (59) 14.0 μg/m3 (54) 59.0
 
Feb. 24, 2020, midnight N/A N/A N/A 8.0 ppb (7) N/A 2.0 ppb (3) 68.0 ppb (52) 0.0 ppb (0) 49.0 μg/m3 (45) 20.0 μg/m3 (67) 67.0
 
Feb. 23, 2020, 11 p.m. N/A N/A N/A 7.0 ppb (6) N/A 2.0 ppb (3) 94.0 ppb (74) 0.1 ppb (1) 50.0 μg/m3 (45) 20.0 μg/m3 (67) 74.0
 
Feb. 23, 2020, 10 p.m. N/A N/A N/A 7.0 ppb (6) N/A 2.0 ppb (3) 95.0 ppb (75) 0.1 ppb (1) 51.0 μg/m3 (46) 21.0 μg/m3 (69) 75.0
 
Feb. 23, 2020, 9 p.m. N/A N/A N/A 8.0 ppb (7) N/A 3.0 ppb (4) 101.0 ppb (80) 0.1 ppb (1) 59.0 μg/m3 (52) 26.0 μg/m3 (80) 80.0
 
Feb. 23, 2020, 8 p.m. N/A N/A N/A 11.0 ppb (10) N/A 3.0 ppb (4) 100.0 ppb (79) 0.1 ppb (1) 54.0 μg/m3 (49) 27.0 μg/m3 (82) 82.0
 
Feb. 23, 2020, 7 p.m. N/A N/A N/A 19.0 ppb (18) N/A 4.0 ppb (6) 87.0 ppb (68) 0.2 ppb (2) 58.0 μg/m3 (52) 25.0 μg/m3 (78) 78.0
 
Feb. 23, 2020, 6 p.m. N/A N/A N/A 15.0 ppb (14) N/A 3.0 ppb (4) 81.0 ppb (63) 0.2 ppb (2) 69.0 μg/m3 (57) 32.0 μg/m3 (93) 93.0
 
Feb. 23, 2020, 5 p.m. N/A N/A N/A 21.0 ppb (19) N/A 3.0 ppb (4) 62.0 ppb (48) 0.4 ppb (4) 63.0 μg/m3 (54) 28.0 μg/m3 (84) 84.0
 
Feb. 23, 2020, 4 p.m. N/A N/A N/A 27.0 ppb (25) N/A 3.0 ppb (4) 38.0 ppb (29) 0.5 ppb (6) 60.0 μg/m3 (52) 29.0 μg/m3 (86) 86.0
 
Feb. 23, 2020, 3 p.m. N/A N/A N/A 32.0 ppb (30) N/A 3.0 ppb (4) 20.0 ppb (15) 0.6 ppb (7) 61.0 μg/m3 (53) 30.0 μg/m3 (88) 88.0
 
Feb. 23, 2020, 2 p.m. N/A N/A N/A 37.0 ppb (34) N/A 3.0 ppb (4) 6.0 ppb (5) 0.8 ppb (9) 61.0 μg/m3 (53) 34.0 μg/m3 (97) 97.0
 
Feb. 23, 2020, 1 p.m. N/A N/A N/A 29.0 ppb (27) N/A 2.0 ppb (3) 9.0 ppb (7) 0.5 ppb (6) 64.0 μg/m3 (54) 31.0 μg/m3 (90) 90.0
 
Feb. 23, 2020, noon N/A N/A N/A 32.0 ppb (30) N/A 2.0 ppb (3) 11.0 ppb (8) 0.5 ppb (6) 68.0 μg/m3 (56) 32.0 μg/m3 (93) 93.0
 
Feb. 23, 2020, 11 a.m. N/A N/A N/A 37.0 ppb (34) N/A 2.0 ppb (3) 9.0 ppb (7) 0.6 ppb (7) 58.0 μg/m3 (52) 26.0 μg/m3 (80) 80.0
 
Feb. 23, 2020, 10 a.m. N/A N/A N/A 36.0 ppb (33) N/A 2.0 ppb (3) 10.0 ppb (8) 0.5 ppb (6) 57.0 μg/m3 (51) 24.0 μg/m3 (76) 76.0
 
Feb. 23, 2020, 9 a.m. N/A N/A N/A 44.0 ppb (41) N/A 3.0 ppb (4) 6.0 ppb (5) 0.6 ppb (7) 57.0 μg/m3 (51) 28.0 μg/m3 (84) 84.0
 
Feb. 23, 2020, 8 a.m. N/A N/A N/A 36.0 ppb (33) N/A 3.0 ppb (4) 16.0 ppb (12) 0.4 ppb (4) 52.0 μg/m3 (47) 19.0 μg/m3 (65) 65.0
 
Feb. 23, 2020, 7 a.m. N/A N/A N/A 43.0 ppb (40) N/A 4.0 ppb (6) 12.0 ppb (9) 0.4 ppb (4) 53.0 μg/m3 (48) 20.0 μg/m3 (67) 67.0
 
Feb. 23, 2020, 6 a.m. N/A N/A N/A 44.0 ppb (41) N/A 3.0 ppb (4) 14.0 ppb (11) 0.4 ppb (4) 50.0 μg/m3 (45) 19.0 μg/m3 (65) 65.0
 
Feb. 23, 2020, 5 a.m. N/A N/A N/A 42.0 ppb (39) N/A 3.0 ppb (4) 16.0 ppb (12) 0.5 ppb (6) 60.0 μg/m3 (52) 23.0 μg/m3 (73) 73.0
 
Feb. 23, 2020, 4 a.m. N/A N/A N/A 27.0 ppb (25) N/A 3.0 ppb (4) 38.0 ppb (29) 0.4 ppb (4) 64.0 μg/m3 (54) 21.0 μg/m3 (69) 69.0
 
Feb. 23, 2020, 3 a.m. N/A N/A N/A 27.0 ppb (25) N/A 4.0 ppb (6) 50.0 ppb (38) 0.4 ppb (4) 73.0 μg/m3 (59) 19.0 μg/m3 (65) 65.0
 
Feb. 23, 2020, 2 a.m. N/A N/A N/A 23.0 ppb (21) N/A 4.0 ppb (6) 62.0 ppb (48) 0.4 ppb (4) 73.0 μg/m3 (59) 23.0 μg/m3 (73) 73.0
 
Feb. 23, 2020, 1 a.m. N/A N/A N/A 16.0 ppb (15) N/A 3.0 ppb (4) 85.0 ppb (67) 0.2 ppb (2) 57.0 μg/m3 (51) 24.0 μg/m3 (76) 76.0
 
Feb. 23, 2020, midnight N/A N/A N/A 9.0 ppb (8) N/A 3.0 ppb (4) 98.0 ppb (78) 0.1 ppb (1) 53.0 μg/m3 (48) 22.0 μg/m3 (71) 78.0
 
Feb. 22, 2020, 11 p.m. N/A N/A N/A 9.0 ppb (8) N/A 3.0 ppb (4) 104.0 ppb (82) 0.1 ppb (1) 53.0 μg/m3 (48) 24.0 μg/m3 (76) 82.0
 
Feb. 22, 2020, 10 p.m. N/A N/A N/A 10.0 ppb (9) N/A 3.0 ppb (4) 106.0 ppb (84) 0.1 ppb (1) 56.0 μg/m3 (50) 26.0 μg/m3 (80) 84.0
 
Feb. 22, 2020, 9 p.m. N/A N/A N/A 13.0 ppb (12) N/A 4.0 ppb (6) 98.0 ppb (78) 0.1 ppb (1) 48.0 μg/m3 (44) 22.0 μg/m3 (71) 78.0
 
Feb. 22, 2020, 8 p.m. N/A N/A N/A 18.0 ppb (17) N/A 4.0 ppb (6) 80.0 ppb (62) 0.2 ppb (2) 58.0 μg/m3 (52) 28.0 μg/m3 (84) 84.0
 
Feb. 22, 2020, 7 p.m. N/A N/A N/A 24.0 ppb (22) N/A 4.0 ppb (6) 61.0 ppb (47) 0.3 ppb (3) 77.0 μg/m3 (61) 36.0 μg/m3 (101) 101.0
 
Feb. 22, 2020, 6 p.m. N/A N/A N/A 40.0 ppb (37) N/A 8.0 ppb (11) 41.0 ppb (32) 0.6 ppb (7) 77.0 μg/m3 (61) 35.0 μg/m3 (99) 99.0
 
Feb. 22, 2020, 5 p.m. N/A N/A N/A 42.0 ppb (39) N/A 11.0 ppb (16) 24.0 ppb (18) 0.8 ppb (9) 73.0 μg/m3 (59) 33.0 μg/m3 (95) 95.0
 
Feb. 22, 2020, 4 p.m. N/A N/A N/A 38.0 ppb (35) N/A 13.0 ppb (19) 13.0 ppb (10) 0.8 ppb (9) 63.0 μg/m3 (54) 29.0 μg/m3 (86) 86.0
 
Feb. 22, 2020, 3 p.m. N/A N/A N/A 28.0 ppb (26) N/A 14.0 ppb (20) 6.0 ppb (5) 0.8 ppb (9) 53.0 μg/m3 (48) 18.0 μg/m3 (63) 63.0
 
Feb. 22, 2020, 2 p.m. N/A N/A N/A 24.0 ppb (22) N/A 6.0 ppb (9) 3.0 ppb (2) 0.8 ppb (9) 37.0 μg/m3 (34) 15.0 μg/m3 (56) 56.0
 
Feb. 22, 2020, 1 p.m. N/A N/A N/A 25.0 ppb (23) N/A 4.0 ppb (6) 2.0 ppb (2) 0.4 ppb (4) 31.0 μg/m3 (28) 14.0 μg/m3 (54) 54.0
 
Feb. 22, 2020, noon N/A N/A N/A 23.0 ppb (21) N/A 5.0 ppb (7) 4.0 ppb (3) 0.2 ppb (2) 34.0 μg/m3 (31) 14.0 μg/m3 (54) 54.0
 
Feb. 22, 2020, 11 a.m. N/A N/A N/A 23.0 ppb (21) N/A 6.0 ppb (9) 3.0 ppb (2) 0.2 ppb (2) 30.0 μg/m3 (27) 12.0 μg/m3 (50) 50.0
 
Feb. 22, 2020, 10 a.m. N/A N/A N/A 21.0 ppb (19) N/A 8.0 ppb (11) 6.0 ppb (5) 0.2 ppb (2) 37.0 μg/m3 (34) 22.0 μg/m3 (71) 71.0
 
Feb. 22, 2020, 9 a.m. N/A N/A N/A 18.0 ppb (17) N/A 7.0 ppb (10) 9.0 ppb (7) 0.2 ppb (2) 39.0 μg/m3 (35) 18.0 μg/m3 (63) 63.0
 
Feb. 22, 2020, 8 a.m. N/A N/A N/A 22.0 ppb (20) N/A 4.0 ppb (6) 5.0 ppb (4) 0.3 ppb (3) 41.0 μg/m3 (37) 16.0 μg/m3 (59) 59.0
 
Feb. 22, 2020, 7 a.m. N/A N/A N/A 27.0 ppb (25) N/A 4.0 ppb (6) 4.0 ppb (3) 0.3 ppb (3) 43.0 μg/m3 (39) 11.0 μg/m3 (46) 46.0
 
Feb. 22, 2020, 6 a.m. N/A N/A N/A 29.0 ppb (27) N/A 7.0 ppb (10) 3.0 ppb (2) 0.4 ppb (4) 65.0 μg/m3 (55) 19.0 μg/m3 (65) 65.0
 
Feb. 22, 2020, 5 a.m. N/A N/A N/A 28.0 ppb (26) N/A 7.0 ppb (10) 4.0 ppb (3) 0.3 ppb (3) 89.0 μg/m3 (67) 13.0 μg/m3 (52) 67.0
 
Feb. 22, 2020, 4 a.m. N/A N/A N/A 26.0 ppb (24) N/A 2.0 ppb (3) 8.0 ppb (6) 0.3 ppb (3) 155.0 μg/m3 (100) 17.0 μg/m3 (61) 100.0
 
Feb. 22, 2020, 3 a.m. N/A N/A N/A 27.0 ppb (25) N/A 2.0 ppb (3) 9.0 ppb (7) 0.3 ppb (3) 103.0 μg/m3 (74) 12.0 μg/m3 (50) 74.0
 
Feb. 22, 2020, 2 a.m. N/A N/A N/A 19.0 ppb (18) N/A 2.0 ppb (3) 26.0 ppb (20) 0.2 ppb (2) 53.0 μg/m3 (48) 12.0 μg/m3 (50) 50.0
 
Feb. 22, 2020, 1 a.m. N/A N/A N/A 14.0 ppb (13) N/A 2.0 ppb (3) 45.0 ppb (35) 0.2 ppb (2) 65.0 μg/m3 (55) 19.0 μg/m3 (65) 65.0
 
Feb. 22, 2020, midnight N/A N/A N/A 12.0 ppb (11) N/A 2.0 ppb (3) 64.0 ppb (49) 0.1 ppb (1) 69.0 μg/m3 (57) 27.0 μg/m3 (82) 82.0
 
Feb. 21, 2020, 11 p.m. N/A N/A N/A 15.0 ppb (14) N/A 2.0 ppb (3) 104.0 ppb (82) 0.2 ppb (2) 73.0 μg/m3 (59) 32.0 μg/m3 (93) 93.0
 
Feb. 21, 2020, 10 p.m. N/A N/A N/A 19.0 ppb (18) N/A 2.0 ppb (3) 110.0 ppb (88) 0.3 ppb (3) 61.0 μg/m3 (53) 28.0 μg/m3 (84) 88.0
 
Feb. 21, 2020, 9 p.m. N/A N/A N/A 18.0 ppb (17) N/A 2.0 ppb (3) 96.0 ppb (76) 0.3 ppb (3) 48.0 μg/m3 (44) 24.0 μg/m3 (76) 76.0
 
Feb. 21, 2020, 8 p.m. N/A N/A N/A 17.0 ppb (16) N/A 2.0 ppb (3) 76.0 ppb (59) 0.2 ppb (2) 45.0 μg/m3 (41) 22.0 μg/m3 (71) 71.0
 
Feb. 21, 2020, 7 p.m. N/A N/A N/A 21.0 ppb (19) N/A 2.0 ppb (3) 54.0 ppb (42) 0.3 ppb (3) 38.0 μg/m3 (35) 16.0 μg/m3 (59) 59.0
 
Feb. 21, 2020, 6 p.m. N/A N/A N/A 22.0 ppb (20) N/A 2.0 ppb (3) 36.0 ppb (28) 0.3 ppb (3) 37.0 μg/m3 (34) 12.0 μg/m3 (50) 50.0
 
Feb. 21, 2020, 5 p.m. N/A N/A N/A 24.0 ppb (22) N/A 3.0 ppb (4) 20.0 ppb (15) 0.4 ppb (4) 31.0 μg/m3 (28) 9.0 μg/m3 (38) 38.0
 
Feb. 21, 2020, 4 p.m. N/A N/A N/A 20.0 ppb (19) N/A 3.0 ppb (4) 14.0 ppb (11) 0.4 ppb (4) 38.0 μg/m3 (35) 12.0 μg/m3 (50) 50.0
 
Feb. 21, 2020, 3 p.m. N/A N/A N/A 24.0 ppb (22) N/A 5.0 ppb (7) 6.0 ppb (5) 0.6 ppb (7) 26.0 μg/m3 (24) 3.0 μg/m3 (12) 24.0
 
Feb. 21, 2020, 2 p.m. N/A N/A N/A 26.0 ppb (24) N/A 4.0 ppb (6) 3.0 ppb (2) 0.6 ppb (7) 24.0 μg/m3 (22) 12.0 μg/m3 (50) 50.0
 
Feb. 21, 2020, 1 p.m. N/A N/A N/A 23.0 ppb (21) N/A 3.0 ppb (4) 2.0 ppb (2) 0.4 ppb (4) 28.0 μg/m3 (25) 12.0 μg/m3 (50) 50.0
 
Feb. 21, 2020, noon N/A N/A N/A 29.0 ppb (27) N/A 3.0 ppb (4) 2.0 ppb (2) 0.3 ppb (3) 42.0 μg/m3 (38) 23.0 μg/m3 (73) 73.0
 
Feb. 21, 2020, 11 a.m. N/A N/A N/A 34.0 ppb (31) N/A 3.0 ppb (4) 2.0 ppb (2) 0.2 ppb (2) 36.0 μg/m3 (33) 19.0 μg/m3 (65) 65.0
 
Feb. 21, 2020, 10 a.m. N/A N/A N/A 32.0 ppb (30) N/A 3.0 ppb (4) 4.0 ppb (3) 0.1 ppb (1) 36.0 μg/m3 (33) 22.0 μg/m3 (71) 71.0
 
Feb. 21, 2020, 9 a.m. N/A N/A N/A 28.0 ppb (26) N/A 3.0 ppb (4) 10.0 ppb (8) 0.1 ppb (1) 37.0 μg/m3 (34) 21.0 μg/m3 (69) 69.0
 
Feb. 21, 2020, 8 a.m. N/A N/A N/A 24.0 ppb (22) N/A 3.0 ppb (4) 16.0 ppb (12) 0.1 ppb (1) 31.0 μg/m3 (28) 14.0 μg/m3 (54) 54.0
 
Feb. 21, 2020, 7 a.m. N/A N/A N/A 21.0 ppb (19) N/A 3.0 ppb (4) 16.0 ppb (12) 0.1 ppb (1) 41.0 μg/m3 (37) 20.0 μg/m3 (67) 67.0