AQSQID: 800090043

Site Name: Santa Fe

Location: Mexico City (Tamaulipas), MX

Reporting: True, Located: True

Current AQI: 61.0

Mexico City (Tamaulipas) MX, MX: 19.3573, -99.2628

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Feb. 24, 2020, 8 a.m. N/A N/A N/A 17.0 ppb (16) N/A 1.0 ppb (1) 35.0 ppb (27) 0.5 ppb (6) 37.0 μg/m3 (34) 17.0 μg/m3 (61) 61.0
 
Feb. 24, 2020, 7 a.m. N/A N/A N/A 19.0 ppb (18) N/A 2.0 ppb (3) 31.0 ppb (24) 0.5 ppb (6) 39.0 μg/m3 (35) 19.0 μg/m3 (65) 65.0
 
Feb. 24, 2020, 6 a.m. N/A N/A N/A 22.0 ppb (20) N/A 2.0 ppb (3) 30.0 ppb (23) 0.5 ppb (6) 39.0 μg/m3 (35) 15.0 μg/m3 (56) 56.0
 
Feb. 24, 2020, 5 a.m. N/A N/A N/A 17.0 ppb (16) N/A 1.0 ppb (1) 33.0 ppb (25) 0.5 ppb (6) 26.0 μg/m3 (24) 15.0 μg/m3 (56) 56.0
 
Feb. 24, 2020, 4 a.m. N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) 44.0 ppb (34) 0.5 ppb (6) 26.0 μg/m3 (24) 14.0 μg/m3 (54) 54.0
 
Feb. 24, 2020, 3 a.m. N/A N/A N/A 13.0 ppb (12) N/A 1.0 ppb (1) 50.0 ppb (38) 0.5 ppb (6) 29.0 μg/m3 (26) 11.0 μg/m3 (46) 46.0
 
Feb. 24, 2020, 2 a.m. N/A N/A N/A 21.0 ppb (19) N/A 0.0 ppb (0) 45.0 ppb (35) 0.6 ppb (7) 44.0 μg/m3 (40) 17.0 μg/m3 (61) 61.0
 
Feb. 24, 2020, 1 a.m. N/A N/A N/A 17.0 ppb (16) N/A 0.0 ppb (0) 50.0 ppb (38) 0.5 ppb (6) 33.0 μg/m3 (30) 9.0 μg/m3 (38) 38.0
 
Feb. 24, 2020, midnight N/A N/A N/A 10.0 ppb (9) N/A 1.0 ppb (1) 59.0 ppb (45) 0.5 ppb (6) 61.0 μg/m3 (53) 32.0 μg/m3 (93) 93.0
 
Feb. 23, 2020, 11 p.m. N/A N/A N/A 11.0 ppb (10) N/A 2.0 ppb (3) 97.0 ppb (77) 0.6 ppb (7) 58.0 μg/m3 (52) 26.0 μg/m3 (80) 80.0
 
Feb. 23, 2020, 10 p.m. N/A N/A N/A 12.0 ppb (11) N/A 2.0 ppb (3) 122.0 ppb (98) 0.6 ppb (7) 46.0 μg/m3 (42) 21.0 μg/m3 (69) 98.0
 
Feb. 23, 2020, 9 p.m. N/A N/A N/A 12.0 ppb (11) N/A 2.0 ppb (3) 129.0 ppb (105) 0.6 ppb (7) 44.0 μg/m3 (40) 20.0 μg/m3 (67) 105.0
 
Feb. 23, 2020, 8 p.m. N/A N/A N/A 14.0 ppb (13) N/A 3.0 ppb (4) 114.0 ppb (91) 0.7 ppb (8) 57.0 μg/m3 (51) 32.0 μg/m3 (93) 93.0
 
Feb. 23, 2020, 7 p.m. N/A N/A N/A 15.0 ppb (14) N/A 2.0 ppb (3) 91.0 ppb (72) 0.6 ppb (7) 44.0 μg/m3 (40) 19.0 μg/m3 (65) 72.0
 
Feb. 23, 2020, 6 p.m. N/A N/A N/A 10.0 ppb (9) N/A 2.0 ppb (3) 74.0 ppb (57) 0.5 ppb (6) 46.0 μg/m3 (42) 21.0 μg/m3 (69) 69.0
 
Feb. 23, 2020, 5 p.m. N/A N/A N/A 22.0 ppb (20) N/A 2.0 ppb (3) 55.0 ppb (42) 0.7 ppb (8) 42.0 μg/m3 (38) 19.0 μg/m3 (65) 65.0
 
Feb. 23, 2020, 4 p.m. N/A N/A N/A 18.0 ppb (17) N/A 2.0 ppb (3) 43.0 ppb (33) 0.7 ppb (8) 38.0 μg/m3 (35) 19.0 μg/m3 (65) 65.0
 
Feb. 23, 2020, 3 p.m. N/A N/A N/A 18.0 ppb (17) N/A 2.0 ppb (3) 34.0 ppb (26) 0.6 ppb (7) 38.0 μg/m3 (35) 21.0 μg/m3 (69) 69.0
 
Feb. 23, 2020, 2 p.m. N/A N/A N/A 31.0 ppb (29) N/A 2.0 ppb (3) 21.0 ppb (16) 0.6 ppb (7) 29.0 μg/m3 (26) 15.0 μg/m3 (56) 56.0
 
Feb. 23, 2020, 1 p.m. N/A N/A N/A 29.0 ppb (27) N/A 1.0 ppb (1) 19.0 ppb (15) 0.6 ppb (7) 28.0 μg/m3 (25) 15.0 μg/m3 (56) 56.0
 
Feb. 23, 2020, noon N/A N/A N/A 12.0 ppb (11) N/A 1.0 ppb (1) 35.0 ppb (27) 0.4 ppb (4) 28.0 μg/m3 (25) 16.0 μg/m3 (59) 59.0
 
Feb. 23, 2020, 11 a.m. N/A N/A N/A 14.0 ppb (13) N/A 1.0 ppb (1) 30.0 ppb (23) 0.4 ppb (4) 25.0 μg/m3 (23) 12.0 μg/m3 (50) 50.0
 
Feb. 23, 2020, 10 a.m. N/A N/A N/A 14.0 ppb (13) N/A 1.0 ppb (1) 33.0 ppb (25) 0.5 ppb (6) 28.0 μg/m3 (25) 14.0 μg/m3 (54) 54.0
 
Feb. 23, 2020, 9 a.m. N/A N/A N/A 14.0 ppb (13) N/A 1.0 ppb (1) 34.0 ppb (26) 0.4 ppb (4) 31.0 μg/m3 (28) 16.0 μg/m3 (59) 59.0
 
Feb. 23, 2020, 8 a.m. N/A N/A N/A 20.0 ppb (19) N/A 1.0 ppb (1) 26.0 ppb (20) 0.5 ppb (6) 43.0 μg/m3 (39) 22.0 μg/m3 (71) 71.0
 
Feb. 23, 2020, 7 a.m. N/A N/A N/A 26.0 ppb (24) N/A 1.0 ppb (1) 23.0 ppb (18) 0.7 ppb (8) 50.0 μg/m3 (45) 23.0 μg/m3 (73) 73.0
 
Feb. 23, 2020, 6 a.m. N/A N/A N/A 30.0 ppb (28) N/A 2.0 ppb (3) 21.0 ppb (16) 0.8 ppb (9) 53.0 μg/m3 (48) 23.0 μg/m3 (73) 73.0
 
Feb. 23, 2020, 5 a.m. N/A N/A N/A 30.0 ppb (28) N/A 2.0 ppb (3) 27.0 ppb (21) 0.7 ppb (8) 51.0 μg/m3 (46) 24.0 μg/m3 (76) 76.0
 
Feb. 23, 2020, 4 a.m. N/A N/A N/A 33.0 ppb (31) N/A 2.0 ppb (3) 34.0 ppb (26) 0.8 ppb (9) 69.0 μg/m3 (57) 30.0 μg/m3 (88) 88.0
 
Feb. 23, 2020, 3 a.m. N/A N/A N/A 41.0 ppb (38) N/A 2.0 ppb (3) 49.0 ppb (38) 0.9 ppb (10) 52.0 μg/m3 (47) 29.0 μg/m3 (86) 86.0
 
Feb. 23, 2020, 2 a.m. N/A N/A N/A 51.0 ppb (47) N/A 1.0 ppb (1) 50.0 ppb (38) 1.0 ppb (11) 56.0 μg/m3 (50) 27.0 μg/m3 (82) 82.0
 
Feb. 23, 2020, 1 a.m. N/A N/A N/A 25.0 ppb (23) N/A 2.0 ppb (3) 90.0 ppb (71) 0.7 ppb (8) 60.0 μg/m3 (52) 32.0 μg/m3 (93) 93.0
 
Feb. 23, 2020, midnight N/A N/A N/A 14.0 ppb (13) N/A 2.0 ppb (3) 118.0 ppb (94) 0.6 ppb (7) 46.0 μg/m3 (42) 22.0 μg/m3 (71) 94.0
 
Feb. 22, 2020, 11 p.m. N/A N/A N/A 11.0 ppb (10) N/A 2.0 ppb (3) 116.0 ppb (92) 0.6 ppb (7) 36.0 μg/m3 (33) 15.0 μg/m3 (56) 92.0
 
Feb. 22, 2020, 10 p.m. N/A N/A N/A 11.0 ppb (10) N/A 2.0 ppb (3) 108.0 ppb (86) 0.6 ppb (7) 34.0 μg/m3 (31) 14.0 μg/m3 (54) 86.0
 
Feb. 22, 2020, 9 p.m. N/A N/A N/A 11.0 ppb (10) N/A 2.0 ppb (3) 92.0 ppb (72) 0.5 ppb (6) 42.0 μg/m3 (38) 22.0 μg/m3 (71) 72.0
 
Feb. 22, 2020, 8 p.m. N/A N/A N/A 11.0 ppb (10) N/A 2.0 ppb (3) 78.0 ppb (61) 0.5 ppb (6) 34.0 μg/m3 (31) 15.0 μg/m3 (56) 61.0
 
Feb. 22, 2020, 7 p.m. N/A N/A N/A 11.0 ppb (10) N/A 2.0 ppb (3) 63.0 ppb (48) 0.5 ppb (6) 47.0 μg/m3 (43) 23.0 μg/m3 (73) 73.0
 
Feb. 22, 2020, 6 p.m. N/A N/A N/A 21.0 ppb (19) N/A 2.0 ppb (3) 51.0 ppb (39) 0.7 ppb (8) 55.0 μg/m3 (50) 23.0 μg/m3 (73) 73.0
 
Feb. 22, 2020, 5 p.m. N/A N/A N/A 33.0 ppb (31) N/A 4.0 ppb (6) 35.0 ppb (27) 0.9 ppb (10) 52.0 μg/m3 (47) 24.0 μg/m3 (76) 76.0
 
Feb. 22, 2020, 4 p.m. N/A N/A N/A 30.0 ppb (28) N/A 6.0 ppb (9) 15.0 ppb (12) 1.0 ppb (11) 37.0 μg/m3 (34) 15.0 μg/m3 (56) 56.0
 
Feb. 22, 2020, 3 p.m. N/A N/A N/A 25.0 ppb (23) N/A 9.0 ppb (13) 5.0 ppb (4) 0.9 ppb (10) 34.0 μg/m3 (31) 17.0 μg/m3 (61) 61.0
 
Feb. 22, 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) 33.0 μg/m3 (30) 18.0 μg/m3 (63) 63.0
 
Feb. 22, 2020, 1 p.m. N/A N/A N/A 20.0 ppb (19) N/A 2.0 ppb (3) 1.0 ppb (1) 0.7 ppb (8) 34.0 μg/m3 (31) 18.0 μg/m3 (63) 63.0
 
Feb. 22, 2020, noon N/A N/A N/A 18.0 ppb (17) N/A 3.0 ppb (4) 0.0 ppb (0) 0.7 ppb (8) 33.0 μg/m3 (30) 17.0 μg/m3 (61) 61.0
 
Feb. 22, 2020, 11 a.m. N/A N/A N/A 20.0 ppb (19) N/A 5.0 ppb (7) 2.0 ppb (2) 0.6 ppb (7) 32.0 μg/m3 (29) 15.0 μg/m3 (56) 56.0
 
Feb. 22, 2020, 10 a.m. N/A N/A N/A 21.0 ppb (19) N/A 7.0 ppb (10) 3.0 ppb (2) 0.6 ppb (7) 31.0 μg/m3 (28) 15.0 μg/m3 (56) 56.0
 
Feb. 22, 2020, 9 a.m. N/A N/A N/A 18.0 ppb (17) N/A 5.0 ppb (7) 6.0 ppb (5) 0.6 ppb (7) 30.0 μg/m3 (27) 13.0 μg/m3 (52) 52.0
 
Feb. 22, 2020, 8 a.m. N/A N/A N/A 18.0 ppb (17) N/A 5.0 ppb (7) 6.0 ppb (5) 0.6 ppb (7) 29.0 μg/m3 (26) 9.0 μg/m3 (38) 38.0
 
Feb. 22, 2020, 7 a.m. N/A N/A N/A 14.0 ppb (13) N/A 7.0 ppb (10) 15.0 ppb (12) 0.5 ppb (6) 38.0 μg/m3 (35) 14.0 μg/m3 (54) 54.0
 
Feb. 22, 2020, 6 a.m. N/A N/A N/A 17.0 ppb (16) N/A 9.0 ppb (13) 12.0 ppb (9) 0.6 ppb (7) 35.0 μg/m3 (32) 9.0 μg/m3 (38) 38.0
 
Feb. 22, 2020, 5 a.m. N/A N/A N/A 14.0 ppb (13) N/A 15.0 ppb (21) 17.0 ppb (13) 0.5 ppb (6) 62.0 μg/m3 (54) 13.0 μg/m3 (52) 54.0
 
Feb. 22, 2020, 4 a.m. N/A N/A N/A 18.0 ppb (17) N/A 21.0 ppb (30) 13.0 ppb (10) 0.6 ppb (7) 85.0 μg/m3 (65) 13.0 μg/m3 (52) 65.0
 
Feb. 22, 2020, 3 a.m. N/A N/A N/A 22.0 ppb (20) N/A 30.0 ppb (43) 12.0 ppb (9) 0.7 ppb (8) 94.0 μg/m3 (70) 22.0 μg/m3 (71) 71.0
 
Feb. 22, 2020, 2 a.m. N/A N/A N/A 27.0 ppb (25) N/A 33.0 ppb (47) 25.0 ppb (19) 0.8 ppb (9) 49.0 μg/m3 (45) 17.0 μg/m3 (61) 61.0
 
Feb. 22, 2020, 1 a.m. N/A N/A N/A 21.0 ppb (19) N/A 1.0 ppb (1) 49.0 ppb (38) 0.6 ppb (7) 47.0 μg/m3 (43) 18.0 μg/m3 (63) 63.0
 
Feb. 22, 2020, midnight N/A N/A N/A 13.0 ppb (12) N/A 1.0 ppb (1) N/A 0.5 ppb (6) 66.0 μg/m3 (56) 37.0 μg/m3 (104) 104.0
 
Feb. 21, 2020, 11 p.m. N/A N/A N/A 18.0 ppb (17) N/A 1.0 ppb (1) 114.0 ppb (91) 0.7 ppb (8) 45.0 μg/m3 (41) 21.0 μg/m3 (69) 91.0
 
Feb. 21, 2020, 10 p.m. N/A N/A N/A 18.0 ppb (17) N/A 1.0 ppb (1) 103.0 ppb (82) 0.7 ppb (8) 41.0 μg/m3 (37) 21.0 μg/m3 (69) 82.0
 
Feb. 21, 2020, 9 p.m. N/A N/A N/A 14.0 ppb (13) N/A 1.0 ppb (1) 84.0 ppb (66) 0.6 ppb (7) 38.0 μg/m3 (35) 19.0 μg/m3 (65) 66.0
 
Feb. 21, 2020, 8 p.m. N/A N/A N/A 13.0 ppb (12) N/A 1.0 ppb (1) 62.0 ppb (48) 0.6 ppb (7) 31.0 μg/m3 (28) 16.0 μg/m3 (59) 59.0
 
Feb. 21, 2020, 7 p.m. N/A N/A N/A 11.0 ppb (10) N/A 1.0 ppb (1) 47.0 ppb (36) 0.5 ppb (6) 22.0 μg/m3 (20) 8.0 μg/m3 (33) 36.0
 
Feb. 21, 2020, 6 p.m. N/A N/A N/A 10.0 ppb (9) N/A 1.0 ppb (1) 33.0 ppb (25) 0.5 ppb (6) 17.0 μg/m3 (15) 5.0 μg/m3 (21) 25.0
 
Feb. 21, 2020, 5 p.m. N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) 23.0 ppb (18) 0.5 ppb (6) 17.0 μg/m3 (15) 7.0 μg/m3 (29) 29.0
 
Feb. 21, 2020, 4 p.m. N/A N/A N/A 9.0 ppb (8) N/A 0.0 ppb (0) 18.0 ppb (14) 0.4 ppb (4) 10.0 μg/m3 (9) 4.0 μg/m3 (17) 17.0
 
Feb. 21, 2020, 3 p.m. N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) 14.0 ppb (11) 0.4 ppb (4) 8.0 μg/m3 (7) 2.0 μg/m3 (8) 11.0
 
Feb. 21, 2020, 2 p.m. N/A N/A N/A 12.0 ppb (11) N/A 0.0 ppb (0) 9.0 ppb (7) 0.4 ppb (4) 13.0 μg/m3 (12) 6.0 μg/m3 (25) 25.0
 
Feb. 21, 2020, 1 p.m. N/A N/A N/A 11.0 ppb (10) N/A 0.0 ppb (0) 9.0 ppb (7) 0.4 ppb (4) 17.0 μg/m3 (15) 11.0 μg/m3 (46) 46.0
 
Feb. 21, 2020, noon N/A N/A N/A 9.0 ppb (8) N/A 0.0 ppb (0) 18.0 ppb (14) 0.4 ppb (4) 19.0 μg/m3 (17) 12.0 μg/m3 (50) 50.0
 
Feb. 21, 2020, 11 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 23.0 ppb (18) 0.4 ppb (4) 21.0 μg/m3 (19) 13.0 μg/m3 (52) 52.0
 
Feb. 21, 2020, 10 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 23.0 ppb (18) 0.3 ppb (3) 21.0 μg/m3 (19) 13.0 μg/m3 (52) 52.0
 
Feb. 21, 2020, 9 a.m. N/A N/A N/A 11.0 ppb (10) N/A 0.0 ppb (0) 21.0 ppb (16) 0.4 ppb (4) 18.0 μg/m3 (16) 10.0 μg/m3 (42) 42.0
 
Feb. 21, 2020, 8 a.m. N/A N/A N/A 15.0 ppb (14) N/A 1.0 ppb (1) 18.0 ppb (14) 0.4 ppb (4) 23.0 μg/m3 (21) 15.0 μg/m3 (56) 56.0
 
Feb. 21, 2020, 7 a.m. N/A N/A N/A 7.0 ppb (6) N/A 1.0 ppb (1) 29.0 ppb (22) 0.3 ppb (3) 27.0 μg/m3 (25) 15.0 μg/m3 (56) 56.0
 
Feb. 21, 2020, 6 a.m. N/A N/A N/A 8.0 ppb (7) N/A 2.0 ppb (3) 29.0 ppb (22) 0.3 ppb (3) 37.0 μg/m3 (34) 19.0 μg/m3 (65) 65.0
 
Feb. 21, 2020, 5 a.m. N/A N/A N/A 8.0 ppb (7) N/A 1.0 ppb (1) 30.0 ppb (23) 0.4 ppb (4) 52.0 μg/m3 (47) 18.0 μg/m3 (63) 63.0
 
Feb. 21, 2020, 4 a.m. N/A N/A N/A 12.0 ppb (11) N/A 1.0 ppb (1) 27.0 ppb (21) 0.4 ppb (4) 55.0 μg/m3 (50) 15.0 μg/m3 (56) 56.0
 
Feb. 21, 2020, 3 a.m. N/A N/A N/A 23.0 ppb (21) N/A 1.0 ppb (1) 22.0 ppb (17) 0.5 ppb (6) 39.0 μg/m3 (35) 10.0 μg/m3 (42) 42.0
 
Feb. 21, 2020, 2 a.m. N/A N/A N/A 25.0 ppb (23) N/A 1.0 ppb (1) 30.0 ppb (23) 0.5 ppb (6) 52.0 μg/m3 (47) 10.0 μg/m3 (42) 47.0
 
Feb. 21, 2020, 1 a.m. N/A N/A N/A 18.0 ppb (17) N/A 1.0 ppb (1) 38.0 ppb (29) 0.4 ppb (4) 40.0 μg/m3 (36) 10.0 μg/m3 (42) 42.0
 
Feb. 21, 2020, midnight N/A N/A N/A 12.0 ppb (11) N/A 3.0 ppb (4) 57.0 ppb (44) 0.4 ppb (4) 55.0 μg/m3 (50) 21.0 μg/m3 (69) 69.0
 
Feb. 20, 2020, 11 p.m. N/A N/A N/A 10.0 ppb (9) N/A 4.0 ppb (6) 63.0 ppb (48) 0.3 ppb (3) 49.0 μg/m3 (45) 16.0 μg/m3 (59) 59.0
 
Feb. 20, 2020, 10 p.m. N/A N/A N/A 9.0 ppb (8) N/A 4.0 ppb (6) 60.0 ppb (46) 0.3 ppb (3) 48.0 μg/m3 (44) 11.0 μg/m3 (46) 46.0
 
Feb. 20, 2020, 9 p.m. N/A N/A N/A 9.0 ppb (8) N/A 5.0 ppb (7) 63.0 ppb (48) 0.3 ppb (3) 53.0 μg/m3 (48) 18.0 μg/m3 (63) 63.0
 
Feb. 20, 2020, 8 p.m. N/A N/A N/A 13.0 ppb (12) N/A 4.0 ppb (6) 72.0 ppb (56) 0.4 ppb (4) 49.0 μg/m3 (45) 20.0 μg/m3 (67) 67.0
 
Feb. 20, 2020, 7 p.m. N/A N/A N/A 20.0 ppb (19) N/A 4.0 ppb (6) 60.0 ppb (46) 0.5 ppb (6) 42.0 μg/m3 (38) 21.0 μg/m3 (69) 69.0
 
Feb. 20, 2020, 6 p.m. N/A N/A N/A 20.0 ppb (19) N/A 4.0 ppb (6) 59.0 ppb (45) 0.6 ppb (7) 41.0 μg/m3 (37) 17.0 μg/m3 (61) 61.0
 
Feb. 20, 2020, 5 p.m. N/A N/A N/A 28.0 ppb (26) N/A 3.0 ppb (4) 42.0 ppb (32) 0.7 ppb (8) 55.0 μg/m3 (50) 27.0 μg/m3 (82) 82.0
 
Feb. 20, 2020, 4 p.m. N/A N/A N/A 30.0 ppb (28) N/A 4.0 ppb (6) 22.0 ppb (17) 0.9 ppb (10) 44.0 μg/m3 (40) 20.0 μg/m3 (67) 67.0
 
Feb. 20, 2020, 3 p.m. N/A N/A N/A 28.0 ppb (26) N/A 3.0 ppb (4) 14.0 ppb (11) 0.8 ppb (9) 31.0 μg/m3 (28) 12.0 μg/m3 (50) 50.0
 
Feb. 20, 2020, 2 p.m. N/A N/A N/A 33.0 ppb (31) N/A 2.0 ppb (3) 10.0 ppb (8) 0.7 ppb (8) 32.0 μg/m3 (29) 14.0 μg/m3 (54) 54.0
 
Feb. 20, 2020, 1 p.m. N/A N/A N/A 42.0 ppb (39) N/A 2.0 ppb (3) 2.0 ppb (2) 0.8 ppb (9) 27.0 μg/m3 (25) 14.0 μg/m3 (54) 54.0
 
Feb. 20, 2020, noon N/A N/A N/A 33.0 ppb (31) N/A 3.0 ppb (4) 7.0 ppb (5) 0.5 ppb (6) 27.0 μg/m3 (25) 14.0 μg/m3 (54) 54.0
 
Feb. 20, 2020, 11 a.m. N/A N/A N/A 23.0 ppb (21) N/A 5.0 ppb (7) 15.0 ppb (12) 0.4 ppb (4) 28.0 μg/m3 (25) 16.0 μg/m3 (59) 59.0
 
Feb. 20, 2020, 10 a.m. N/A N/A N/A 18.0 ppb (17) N/A 4.0 ppb (6) 18.0 ppb (14) 0.4 ppb (4) 27.0 μg/m3 (25) 15.0 μg/m3 (56) 56.0
 
Feb. 20, 2020, 9 a.m. N/A N/A N/A 20.0 ppb (19) N/A 3.0 ppb (4) 15.0 ppb (12) 0.4 ppb (4) 24.0 μg/m3 (22) 12.0 μg/m3 (50) 50.0
 
Feb. 20, 2020, 8 a.m. N/A N/A N/A 20.0 ppb (19) N/A 5.0 ppb (7) 14.0 ppb (11) 0.4 ppb (4) 28.0 μg/m3 (25) 16.0 μg/m3 (59) 59.0
 
Feb. 20, 2020, 7 a.m. N/A N/A N/A 16.0 ppb (15) N/A 4.0 ppb (6) 20.0 ppb (15) 0.4 ppb (4) 30.0 μg/m3 (27) 17.0 μg/m3 (61) 61.0
 
Feb. 20, 2020, 6 a.m. N/A N/A N/A 23.0 ppb (21) N/A 6.0 ppb (9) 16.0 ppb (12) 0.4 ppb (4) 32.0 μg/m3 (29) 17.0 μg/m3 (61) 61.0
 
Feb. 20, 2020, 5 a.m. N/A N/A N/A 34.0 ppb (31) N/A 13.0 ppb (19) 8.0 ppb (6) 0.6 ppb (7) 43.0 μg/m3 (39) 25.0 μg/m3 (78) 78.0
 
Feb. 20, 2020, 4 a.m. N/A N/A N/A 44.0 ppb (41) N/A 22.0 ppb (31) 5.0 ppb (4) 0.8 ppb (9) 43.0 μg/m3 (39) 21.0 μg/m3 (69) 69.0
 
Feb. 20, 2020, 3 a.m. N/A N/A N/A 29.0 ppb (27) N/A 32.0 ppb (46) 24.0 ppb (18) 0.5 ppb (6) 54.0 μg/m3 (49) 27.0 μg/m3 (82) 82.0
 
Feb. 20, 2020, 2 a.m. N/A N/A N/A 33.0 ppb (31) N/A 34.0 ppb (49) N/A 0.6 ppb (7) 65.0 μg/m3 (55) 19.0 μg/m3 (65) 65.0
 
Feb. 20, 2020, 1 a.m. N/A N/A N/A 35.0 ppb (32) N/A 12.0 ppb (17) N/A 0.6 ppb (7) 77.0 μg/m3 (61) 42.0 μg/m3 (116) 116.0
 
Feb. 20, 2020, midnight N/A N/A N/A 36.0 ppb (33) N/A 9.0 ppb (13) 124.0 ppb (99) 0.8 ppb (9) 85.0 μg/m3 (65) 50.0 μg/m3 (136) 136.0
 
Feb. 19, 2020, 11 p.m. N/A N/A N/A 30.0 ppb (28) N/A 9.0 ppb (13) 119.0 ppb (95) 0.7 ppb (8) 75.0 μg/m3 (60) 41.0 μg/m3 (114) 114.0
 
Feb. 19, 2020, 10 p.m. N/A N/A N/A 29.0 ppb (27) N/A 13.0 ppb (19) 98.0 ppb (78) 0.7 ppb (8) 41.0 μg/m3 (37) 18.0 μg/m3 (63) 78.0
 
Feb. 19, 2020, 9 p.m. N/A N/A N/A 25.0 ppb (23) N/A 12.0 ppb (17) 77.0 ppb (60) 0.6 ppb (7) 30.0 μg/m3 (27) 13.0 μg/m3 (52) 60.0
 
Feb. 19, 2020, 8 p.m. N/A N/A N/A 21.0 ppb (19) N/A 10.0 ppb (14) 58.0 ppb (45) 0.5 ppb (6) 43.0 μg/m3 (39) 20.0 μg/m3 (67) 67.0
 
Feb. 19, 2020, 7 p.m. N/A N/A N/A 33.0 ppb (31) N/A 9.0 ppb (13) 55.0 ppb (42) 0.7 ppb (8) 62.0 μg/m3 (54) 31.0 μg/m3 (90) 90.0
 
Feb. 19, 2020, 6 p.m. N/A N/A N/A 48.0 ppb (44) N/A 8.0 ppb (11) 39.0 ppb (30) 1.0 ppb (11) 57.0 μg/m3 (51) 28.0 μg/m3 (84) 84.0
 
Feb. 19, 2020, 5 p.m. N/A N/A N/A 53.0 ppb (49) N/A 5.0 ppb (7) 21.0 ppb (16) 1.1 ppb (12) 41.0 μg/m3 (37) 16.0 μg/m3 (59) 59.0
 
Feb. 19, 2020, 4 p.m. N/A N/A N/A 40.0 ppb (37) N/A 3.0 ppb (4) 14.0 ppb (11) 0.9 ppb (10) 36.0 μg/m3 (33) 14.0 μg/m3 (54) 54.0
 
Feb. 19, 2020, 3 p.m. N/A N/A N/A 45.0 ppb (42) N/A 1.0 ppb (1) 8.0 ppb (6) 1.0 ppb (11) 46.0 μg/m3 (42) 21.0 μg/m3 (69) 69.0
 
Feb. 19, 2020, 2 p.m. N/A N/A N/A 56.0 ppb (52) N/A 1.0 ppb (1) 2.0 ppb (2) 1.1 ppb (12) 37.0 μg/m3 (34) 19.0 μg/m3 (65) 65.0
 
Feb. 19, 2020, 1 p.m. N/A N/A N/A 52.0 ppb (48) N/A 1.0 ppb (1) 2.0 ppb (2) 0.8 ppb (9) 25.0 μg/m3 (23) 13.0 μg/m3 (52) 52.0
 
Feb. 19, 2020, noon N/A N/A N/A 37.0 ppb (34) N/A 1.0 ppb (1) 11.0 ppb (8) 0.4 ppb (4) 15.0 μg/m3 (14) 7.0 μg/m3 (29) 34.0
 
Feb. 19, 2020, 11 a.m. N/A N/A N/A 21.0 ppb (19) N/A 0.0 ppb (0) 22.0 ppb (17) 0.3 ppb (3) 12.0 μg/m3 (11) 5.0 μg/m3 (21) 21.0
 
Feb. 19, 2020, 10 a.m. N/A N/A N/A 16.0 ppb (15) N/A 1.0 ppb (1) 27.0 ppb (21) 0.3 ppb (3) 16.0 μg/m3 (15) 8.0 μg/m3 (33) 33.0
 
Feb. 19, 2020, 9 a.m. N/A N/A N/A 31.0 ppb (29) N/A 92.0 ppb (76) 5.0 ppb (4) 9.3 ppb (98) 20.0 μg/m3 (18) 9.0 μg/m3 (38) 98.0
 
Feb. 19, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 23.0 μg/m3 (21) 9.0 μg/m3 (38) 38.0
 
Feb. 19, 2020, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.3 ppb (3) 40.0 μg/m3 (36) 19.0 μg/m3 (65) 65.0
 
Feb. 19, 2020, 6 a.m. N/A N/A N/A 33.0 ppb (31) N/A 1.0 ppb (1) 14.0 ppb (11) 0.5 ppb (6) 43.0 μg/m3 (39) 14.0 μg/m3 (54) 54.0
 
Feb. 19, 2020, 5 a.m. N/A N/A N/A 42.0 ppb (39) N/A 2.0 ppb (3) 8.0 ppb (6) 0.7 ppb (8) 56.0 μg/m3 (50) 22.0 μg/m3 (71) 71.0
 
Feb. 19, 2020, 4 a.m. N/A N/A N/A 52.0 ppb (48) N/A 4.0 ppb (6) 8.0 ppb (6) 0.8 ppb (9) 54.0 μg/m3 (49) 18.0 μg/m3 (63) 63.0
 
Feb. 19, 2020, 3 a.m. N/A N/A N/A 45.0 ppb (42) N/A 5.0 ppb (7) 24.0 ppb (18) 0.7 ppb (8) 44.0 μg/m3 (40) 19.0 μg/m3 (65) 65.0
 
Feb. 19, 2020, 2 a.m. N/A N/A N/A 63.0 ppb (60) N/A 5.0 ppb (7) 18.0 ppb (14) 1.0 ppb (11) 44.0 μg/m3 (40) 19.0 μg/m3 (65) 65.0
 
Feb. 19, 2020, 1 a.m. N/A N/A N/A 42.0 ppb (39) N/A 7.0 ppb (10) 50.0 ppb (38) 0.7 ppb (8) N/A N/A 39.0
 
Feb. 19, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Feb. 18, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Feb. 18, 2020, 8 p.m. N/A N/A N/A 14.0 ppb (13) N/A 3.0 ppb (4) 68.0 ppb (52) 0.5 ppb (6) 27.0 μg/m3 (25) 12.0 μg/m3 (50) 52.0
 
Feb. 18, 2020, 7 p.m. N/A N/A N/A 14.0 ppb (13) N/A 2.0 ppb (3) 62.0 ppb (48) 0.5 ppb (6) 41.0 μg/m3 (37) 18.0 μg/m3 (63) 63.0
 
Feb. 18, 2020, 6 p.m. N/A N/A N/A 36.0 ppb (33) N/A 2.0 ppb (3) 41.0 ppb (32) 0.9 ppb (10) 48.0 μg/m3 (44) 22.0 μg/m3 (71) 71.0
 
Feb. 18, 2020, 5 p.m. N/A N/A N/A 49.0 ppb (45) N/A 2.0 ppb (3) 26.0 ppb (20) 1.2 ppb (13) 30.0 μg/m3 (27) 9.0 μg/m3 (38) 45.0
 
Feb. 18, 2020, 4 p.m. N/A N/A N/A 28.0 ppb (26) N/A 2.0 ppb (3) 23.0 ppb (18) 0.9 ppb (10) 31.0 μg/m3 (28) 12.0 μg/m3 (50) 50.0
 
Feb. 18, 2020, 3 p.m. N/A N/A N/A 33.0 ppb (31) N/A 1.0 ppb (1) 9.0 ppb (7) 0.8 ppb (9) 36.0 μg/m3 (33) 17.0 μg/m3 (61) 61.0
 
Feb. 18, 2020, 2 p.m. N/A N/A N/A 43.0 ppb (40) N/A 1.0 ppb (1) 2.0 ppb (2) 0.9 ppb (10) 29.0 μg/m3 (26) 13.0 μg/m3 (52) 52.0
 
Feb. 18, 2020, 1 p.m. N/A N/A N/A 43.0 ppb (40) N/A 2.0 ppb (3) 0.0 ppb (0) 0.9 ppb (10) 16.0 μg/m3 (15) 6.0 μg/m3 (25) 40.0
 
Feb. 18, 2020, noon N/A N/A N/A 33.0 ppb (31) N/A 1.0 ppb (1) 8.0 ppb (6) 0.4 ppb (4) 11.0 μg/m3 (10) 4.0 μg/m3 (17) 31.0
 
Feb. 18, 2020, 11 a.m. N/A N/A N/A 18.0 ppb (17) N/A 1.0 ppb (1) 21.0 ppb (16) 0.3 ppb (3) 17.0 μg/m3 (15) 9.0 μg/m3 (38) 38.0
 
Feb. 18, 2020, 10 a.m. N/A N/A N/A 13.0 ppb (12) N/A 1.0 ppb (1) 29.0 ppb (22) 0.3 ppb (3) 16.0 μg/m3 (15) 7.0 μg/m3 (29) 29.0
 
Feb. 18, 2020, 9 a.m. N/A N/A N/A 10.0 ppb (9) N/A 1.0 ppb (1) 32.0 ppb (25) 0.3 ppb (3) 18.0 μg/m3 (16) 8.0 μg/m3 (33) 33.0
 
Feb. 18, 2020, 8 a.m. N/A N/A N/A 16.0 ppb (15) N/A 1.0 ppb (1) 25.0 ppb (19) 0.4 ppb (4) 17.0 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
Feb. 18, 2020, 7 a.m. N/A N/A N/A 19.0 ppb (18) N/A 2.0 ppb (3) 23.0 ppb (18) 0.4 ppb (4) 26.0 μg/m3 (24) 13.0 μg/m3 (52) 52.0
 
Feb. 18, 2020, 6 a.m. N/A N/A N/A 25.0 ppb (23) N/A 2.0 ppb (3) 22.0 ppb (17) 0.5 ppb (6) 32.0 μg/m3 (29) 19.0 μg/m3 (65) 65.0
 
Feb. 18, 2020, 5 a.m. N/A N/A N/A 36.0 ppb (33) N/A 2.0 ppb (3) 17.0 ppb (13) 0.6 ppb (7) 29.0 μg/m3 (26) 14.0 μg/m3 (54) 54.0
 
Feb. 18, 2020, 4 a.m. N/A N/A N/A 40.0 ppb (37) N/A 1.0 ppb (1) 16.0 ppb (12) 0.7 ppb (8) 35.0 μg/m3 (32) 15.0 μg/m3 (56) 56.0
 
Feb. 18, 2020, 3 a.m. N/A N/A N/A 30.0 ppb (28) N/A 1.0 ppb (1) 31.0 ppb (24) 0.7 ppb (8) 41.0 μg/m3 (37) 17.0 μg/m3 (61) 61.0
 
Feb. 18, 2020, 2 a.m. N/A N/A N/A 24.0 ppb (22) N/A 1.0 ppb (1) 42.0 ppb (32) 0.6 ppb (7) 46.0 μg/m3 (42) 19.0 μg/m3 (65) 65.0
 
Feb. 18, 2020, 1 a.m. N/A N/A N/A 31.0 ppb (29) N/A 1.0 ppb (1) 40.0 ppb (31) 0.7 ppb (8) 32.0 μg/m3 (29) 19.0 μg/m3 (65) 65.0
 
Feb. 18, 2020, midnight N/A N/A N/A 11.0 ppb (10) N/A 4.0 ppb (6) 61.0 ppb (47) 0.4 ppb (4) 21.0 μg/m3 (19) 11.0 μg/m3 (46) 47.0
 
Feb. 17, 2020, 11 p.m. N/A N/A N/A 6.0 ppb (6) N/A 3.0 ppb (4) 61.0 ppb (47) 0.3 ppb (3) 15.0 μg/m3 (14) 5.0 μg/m3 (21) 47.0
 
Feb. 17, 2020, 10 p.m. N/A N/A N/A 8.0 ppb (7) N/A 3.0 ppb (4) 67.0 ppb (52) 0.4 ppb (4) 19.0 μg/m3 (17) 8.0 μg/m3 (33) 52.0
 
Feb. 17, 2020, 9 p.m. N/A N/A N/A 14.0 ppb (13) N/A 1.0 ppb (1) 67.0 ppb (52) 0.5 ppb (6) 19.0 μg/m3 (17) 11.0 μg/m3 (46) 52.0
 
Feb. 17, 2020, 8 p.m. N/A N/A N/A 10.0 ppb (9) N/A 1.0 ppb (1) 52.0 ppb (40) 0.4 ppb (4) 12.0 μg/m3 (11) 4.0 μg/m3 (17) 40.0
 
Feb. 17, 2020, 7 p.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 39.0 ppb (30) 0.4 ppb (4) 22.0 μg/m3 (20) 12.0 μg/m3 (50) 50.0
 
Feb. 17, 2020, 6 p.m. N/A N/A N/A 18.0 ppb (17) N/A 1.0 ppb (1) 30.0 ppb (23) 0.5 ppb (6) 26.0 μg/m3 (24) 12.0 μg/m3 (50) 50.0
 
Feb. 17, 2020, 5 p.m. N/A N/A N/A 27.0 ppb (25) N/A 1.0 ppb (1) 24.0 ppb (18) 0.7 ppb (8) 20.0 μg/m3 (18) 5.0 μg/m3 (21) 25.0
 
Feb. 17, 2020, 4 p.m. N/A N/A N/A 28.0 ppb (26) N/A 1.0 ppb (1) 16.0 ppb (12) 0.9 ppb (10) 23.0 μg/m3 (21) 9.0 μg/m3 (38) 38.0
 
Feb. 17, 2020, 3 p.m. N/A N/A N/A 22.0 ppb (20) N/A 1.0 ppb (1) 9.0 ppb (7) 0.7 ppb (8) 29.0 μg/m3 (26) 11.0 μg/m3 (46) 46.0
 
Feb. 17, 2020, 2 p.m. N/A N/A N/A 33.0 ppb (31) N/A 1.0 ppb (1) 2.0 ppb (2) 0.9 ppb (10) 23.0 μg/m3 (21) 11.0 μg/m3 (46) 46.0
 
Feb. 17, 2020, 1 p.m. N/A N/A N/A 34.0 ppb (31) N/A 2.0 ppb (3) 0.0 ppb (0) 0.7 ppb (8) 10.0 μg/m3 (9) 4.0 μg/m3 (17) 31.0
 
Feb. 17, 2020, noon N/A N/A N/A 23.0 ppb (21) N/A 1.0 ppb (1) 5.0 ppb (4) 0.4 ppb (4) 4.0 μg/m3 (4) 1.0 μg/m3 (4) 21.0
 
Feb. 17, 2020, 11 a.m. N/A N/A N/A 12.0 ppb (11) N/A 2.0 ppb (3) 15.0 ppb (12) 0.3 ppb (3) 9.0 μg/m3 (8) 5.0 μg/m3 (21) 21.0
 
Feb. 17, 2020, 10 a.m. N/A N/A N/A 11.0 ppb (10) N/A 2.0 ppb (3) 14.0 ppb (11) 0.3 ppb (3) 8.0 μg/m3 (7) 4.0 μg/m3 (17) 17.0
 
Feb. 17, 2020, 9 a.m. N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) 16.0 ppb (12) 0.3 ppb (3) 10.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
Feb. 17, 2020, 8 a.m. N/A N/A N/A 13.0 ppb (12) N/A 2.0 ppb (3) 13.0 ppb (10) 0.3 ppb (3) 10.0 μg/m3 (9) 4.0 μg/m3 (17) 17.0
 
Feb. 17, 2020, 7 a.m. N/A N/A N/A 14.0 ppb (13) N/A 2.0 ppb (3) 12.0 ppb (9) 0.4 ppb (4) 17.0 μg/m3 (15) 8.0 μg/m3 (33) 33.0