AQSQID: 800090043

Site Name: Santa Fe

Location: Mexico City (Tamaulipas), MX

Reporting: True, Located: True

Current AQI: 59.0

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
March 31, 2020, 1 p.m. N/A N/A N/A 41.0 ppb (38) N/A 3.0 ppb (4) N/A 0.4 ppb (4) 28.0 μg/m3 (25) 16.0 μg/m3 (59) 59.0
 
March 31, 2020, noon N/A N/A N/A 25.0 ppb (23) N/A 3.0 ppb (4) N/A 0.3 ppb (3) 23.0 μg/m3 (21) 12.0 μg/m3 (50) 50.0
 
March 31, 2020, 11 a.m. N/A N/A N/A 15.0 ppb (14) N/A 3.0 ppb (4) N/A 0.2 ppb (2) 24.0 μg/m3 (22) 12.0 μg/m3 (50) 50.0
 
March 31, 2020, 10 a.m. N/A N/A N/A 13.0 ppb (12) N/A 4.0 ppb (6) N/A 0.2 ppb (2) 22.0 μg/m3 (20) 10.0 μg/m3 (42) 42.0
 
March 31, 2020, 9 a.m. N/A N/A N/A 14.0 ppb (13) N/A 3.0 ppb (4) N/A 0.2 ppb (2) 25.0 μg/m3 (23) 12.0 μg/m3 (50) 50.0
 
March 31, 2020, 8 a.m. N/A N/A N/A 17.0 ppb (16) N/A 3.0 ppb (4) N/A 0.3 ppb (3) 37.0 μg/m3 (34) 18.0 μg/m3 (63) 63.0
 
March 31, 2020, 7 a.m. N/A N/A N/A 15.0 ppb (14) N/A 5.0 ppb (7) N/A 0.3 ppb (3) 43.0 μg/m3 (39) 23.0 μg/m3 (73) 73.0
 
March 31, 2020, 6 a.m. N/A N/A N/A 19.0 ppb (18) N/A 1.0 ppb (1) N/A 0.4 ppb (4) 39.0 μg/m3 (35) 18.0 μg/m3 (63) 63.0
 
March 31, 2020, 5 a.m. N/A N/A N/A 14.0 ppb (13) N/A 1.0 ppb (1) N/A 0.4 ppb (4) 62.0 μg/m3 (54) 24.0 μg/m3 (76) 76.0
 
March 31, 2020, 4 a.m. N/A N/A N/A 17.0 ppb (16) N/A 1.0 ppb (1) N/A 0.4 ppb (4) 55.0 μg/m3 (50) 23.0 μg/m3 (73) 73.0
 
March 31, 2020, 3 a.m. N/A N/A N/A 12.0 ppb (11) N/A 1.0 ppb (1) N/A 0.4 ppb (4) 54.0 μg/m3 (49) 21.0 μg/m3 (69) 69.0
 
March 31, 2020, 2 a.m. N/A N/A N/A 17.0 ppb (16) N/A 2.0 ppb (3) N/A 0.4 ppb (4) 69.0 μg/m3 (57) 32.0 μg/m3 (93) 93.0
 
March 31, 2020, 1 a.m. N/A N/A N/A 14.0 ppb (13) N/A 2.0 ppb (3) N/A 0.3 ppb (3) 68.0 μg/m3 (56) 35.0 μg/m3 (99) 99.0
 
March 31, 2020, midnight N/A N/A N/A 10.0 ppb (9) N/A 3.0 ppb (4) N/A 0.3 ppb (3) 44.0 μg/m3 (40) 16.0 μg/m3 (59) 59.0
 
March 30, 2020, 11 p.m. N/A N/A N/A 9.0 ppb (8) N/A 3.0 ppb (4) N/A 0.3 ppb (3) 56.0 μg/m3 (50) 25.0 μg/m3 (78) 78.0
 
March 30, 2020, 10 p.m. N/A N/A N/A 9.0 ppb (8) N/A 2.0 ppb (3) N/A 0.3 ppb (3) 62.0 μg/m3 (54) 27.0 μg/m3 (82) 82.0
 
March 30, 2020, 9 p.m. N/A N/A N/A 10.0 ppb (9) N/A 2.0 ppb (3) N/A 0.3 ppb (3) 56.0 μg/m3 (50) 22.0 μg/m3 (71) 71.0
 
March 30, 2020, 8 p.m. N/A N/A N/A 11.0 ppb (10) N/A 2.0 ppb (3) N/A 0.4 ppb (4) 50.0 μg/m3 (45) 22.0 μg/m3 (71) 71.0
 
March 30, 2020, 7 p.m. N/A N/A N/A 12.0 ppb (11) N/A 2.0 ppb (3) N/A 0.4 ppb (4) 69.0 μg/m3 (57) 39.0 μg/m3 (109) 109.0
 
March 30, 2020, 6 p.m. N/A N/A N/A 13.0 ppb (12) N/A 3.0 ppb (4) N/A 0.4 ppb (4) 63.0 μg/m3 (54) 31.0 μg/m3 (90) 90.0
 
March 30, 2020, 5 p.m. N/A N/A N/A 19.0 ppb (18) N/A 5.0 ppb (7) N/A 0.5 ppb (6) 48.0 μg/m3 (44) 21.0 μg/m3 (69) 69.0
 
March 30, 2020, 4 p.m. N/A N/A N/A 15.0 ppb (14) N/A 6.0 ppb (9) N/A 0.5 ppb (6) 45.0 μg/m3 (41) 23.0 μg/m3 (73) 73.0
 
March 30, 2020, 3 p.m. N/A N/A N/A 14.0 ppb (13) N/A 5.0 ppb (7) N/A 0.4 ppb (4) 34.0 μg/m3 (31) 16.0 μg/m3 (59) 59.0
 
March 30, 2020, 2 p.m. N/A N/A N/A 29.0 ppb (27) N/A 2.0 ppb (3) N/A 0.4 ppb (4) 37.0 μg/m3 (34) 21.0 μg/m3 (69) 69.0
 
March 30, 2020, 1 p.m. N/A N/A N/A 33.0 ppb (31) N/A 2.0 ppb (3) N/A 0.4 ppb (4) 37.0 μg/m3 (34) 21.0 μg/m3 (69) 69.0
 
March 30, 2020, noon N/A N/A N/A 19.0 ppb (18) N/A 2.0 ppb (3) N/A 0.3 ppb (3) 34.0 μg/m3 (31) 17.0 μg/m3 (61) 61.0
 
March 30, 2020, 11 a.m. N/A N/A N/A 10.0 ppb (9) N/A 3.0 ppb (4) N/A 0.3 ppb (3) 39.0 μg/m3 (35) 22.0 μg/m3 (71) 71.0
 
March 30, 2020, 10 a.m. N/A N/A N/A 11.0 ppb (10) N/A 3.0 ppb (4) N/A 0.3 ppb (3) 42.0 μg/m3 (38) 23.0 μg/m3 (73) 73.0
 
March 30, 2020, 9 a.m. N/A N/A N/A 12.0 ppb (11) N/A 4.0 ppb (6) N/A 0.3 ppb (3) 51.0 μg/m3 (46) 29.0 μg/m3 (86) 86.0
 
March 30, 2020, 8 a.m. N/A N/A N/A 11.0 ppb (10) N/A 5.0 ppb (7) N/A 0.4 ppb (4) 47.0 μg/m3 (43) 25.0 μg/m3 (78) 78.0
 
March 30, 2020, 7 a.m. N/A N/A N/A 13.0 ppb (12) N/A 6.0 ppb (9) N/A 0.4 ppb (4) 54.0 μg/m3 (49) 28.0 μg/m3 (84) 84.0
 
March 30, 2020, 6 a.m. N/A N/A N/A 13.0 ppb (12) N/A 8.0 ppb (11) N/A 0.4 ppb (4) 52.0 μg/m3 (47) 24.0 μg/m3 (76) 76.0
 
March 30, 2020, 5 a.m. N/A N/A N/A 10.0 ppb (9) N/A 16.0 ppb (23) N/A 0.4 ppb (4) 59.0 μg/m3 (52) 23.0 μg/m3 (73) 73.0
 
March 30, 2020, 4 a.m. N/A N/A N/A 10.0 ppb (9) N/A 13.0 ppb (19) N/A 0.4 ppb (4) 68.0 μg/m3 (56) 21.0 μg/m3 (69) 69.0
 
March 30, 2020, 3 a.m. N/A N/A N/A 8.0 ppb (7) N/A 6.0 ppb (9) N/A 0.4 ppb (4) 112.0 μg/m3 (78) 25.0 μg/m3 (78) 78.0
 
March 30, 2020, 2 a.m. N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) N/A 0.4 ppb (4) 91.0 μg/m3 (68) 18.0 μg/m3 (63) 68.0
 
March 30, 2020, 1 a.m. N/A N/A N/A 8.0 ppb (7) N/A 2.0 ppb (3) N/A 0.4 ppb (4) 54.0 μg/m3 (49) 33.0 μg/m3 (95) 95.0
 
March 30, 2020, midnight N/A N/A N/A 5.0 ppb (5) N/A 3.0 ppb (4) N/A 0.3 ppb (3) 64.0 μg/m3 (54) 37.0 μg/m3 (104) 104.0
 
March 29, 2020, 11 p.m. N/A N/A N/A 5.0 ppb (5) N/A 3.0 ppb (4) N/A 0.2 ppb (2) 79.0 μg/m3 (62) 41.0 μg/m3 (114) 114.0
 
March 29, 2020, 10 p.m. N/A N/A N/A 7.0 ppb (6) N/A 4.0 ppb (6) N/A 0.3 ppb (3) 61.0 μg/m3 (53) 28.0 μg/m3 (84) 84.0
 
March 29, 2020, 9 p.m. N/A N/A N/A 9.0 ppb (8) N/A 4.0 ppb (6) N/A 0.4 ppb (4) 64.0 μg/m3 (54) 37.0 μg/m3 (104) 104.0
 
March 29, 2020, 8 p.m. N/A N/A N/A 10.0 ppb (9) N/A 4.0 ppb (6) N/A 0.4 ppb (4) 52.0 μg/m3 (47) 27.0 μg/m3 (82) 82.0
 
March 29, 2020, 7 p.m. N/A N/A N/A 10.0 ppb (9) N/A 4.0 ppb (6) N/A 0.4 ppb (4) 58.0 μg/m3 (52) 34.0 μg/m3 (97) 97.0
 
March 29, 2020, 6 p.m. N/A N/A N/A 8.0 ppb (7) N/A 5.0 ppb (7) N/A 0.4 ppb (4) 53.0 μg/m3 (48) 30.0 μg/m3 (88) 88.0
 
March 29, 2020, 5 p.m. N/A N/A N/A 7.0 ppb (6) N/A 7.0 ppb (10) 66.0 ppb (51) 0.4 ppb (4) 37.0 μg/m3 (34) 20.0 μg/m3 (67) 67.0
 
March 29, 2020, 4 p.m. N/A N/A N/A 7.0 ppb (6) N/A 9.0 ppb (13) 55.0 ppb (42) 0.3 ppb (3) 38.0 μg/m3 (35) 22.0 μg/m3 (71) 71.0
 
March 29, 2020, 3 p.m. N/A N/A N/A 5.0 ppb (5) N/A 6.0 ppb (9) 50.0 ppb (38) 0.3 ppb (3) 37.0 μg/m3 (34) 21.0 μg/m3 (69) 69.0
 
March 29, 2020, 2 p.m. N/A N/A N/A 18.0 ppb (17) N/A 2.0 ppb (3) 32.0 ppb (25) 0.4 ppb (4) 33.0 μg/m3 (30) 19.0 μg/m3 (65) 65.0
 
March 29, 2020, 1 p.m. N/A N/A N/A 22.0 ppb (20) N/A 1.0 ppb (1) 24.0 ppb (18) 0.4 ppb (4) 28.0 μg/m3 (25) 16.0 μg/m3 (59) 59.0
 
March 29, 2020, noon N/A N/A N/A 10.0 ppb (9) N/A 1.0 ppb (1) 36.0 ppb (28) 0.3 ppb (3) 25.0 μg/m3 (23) 12.0 μg/m3 (50) 50.0
 
March 29, 2020, 11 a.m. N/A N/A N/A 10.0 ppb (9) N/A 1.0 ppb (1) 37.0 ppb (28) 0.3 ppb (3) 29.0 μg/m3 (26) 17.0 μg/m3 (61) 61.0
 
March 29, 2020, 10 a.m. N/A N/A N/A 10.0 ppb (9) N/A 1.0 ppb (1) 39.0 ppb (30) 0.3 ppb (3) 30.0 μg/m3 (27) 17.0 μg/m3 (61) 61.0
 
March 29, 2020, 9 a.m. N/A N/A N/A 8.0 ppb (7) N/A 1.0 ppb (1) 44.0 ppb (34) 0.3 ppb (3) 37.0 μg/m3 (34) 19.0 μg/m3 (65) 65.0
 
March 29, 2020, 8 a.m. N/A N/A N/A 10.0 ppb (9) N/A 1.0 ppb (1) 42.0 ppb (32) 0.3 ppb (3) 36.0 μg/m3 (33) 17.0 μg/m3 (61) 61.0
 
March 29, 2020, 7 a.m. N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) 45.0 ppb (35) 0.3 ppb (3) 44.0 μg/m3 (40) 19.0 μg/m3 (65) 65.0
 
March 29, 2020, 6 a.m. N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) 45.0 ppb (35) 0.3 ppb (3) 56.0 μg/m3 (50) 15.0 μg/m3 (56) 56.0
 
March 29, 2020, 5 a.m. N/A N/A N/A 8.0 ppb (7) N/A 1.0 ppb (1) 48.0 ppb (37) 0.3 ppb (3) 86.0 μg/m3 (66) 23.0 μg/m3 (73) 73.0
 
March 29, 2020, 4 a.m. N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) 49.0 ppb (38) 0.3 ppb (3) 57.0 μg/m3 (51) 28.0 μg/m3 (84) 84.0
 
March 29, 2020, 3 a.m. N/A N/A N/A 15.0 ppb (14) N/A 1.0 ppb (1) 54.0 ppb (42) 0.4 ppb (4) 35.0 μg/m3 (32) 18.0 μg/m3 (63) 63.0
 
March 29, 2020, 2 a.m. N/A N/A N/A 16.0 ppb (15) N/A 2.0 ppb (3) 57.0 ppb (44) 0.3 ppb (3) 29.0 μg/m3 (26) 12.0 μg/m3 (50) 50.0
 
March 29, 2020, 1 a.m. N/A N/A N/A 8.0 ppb (7) N/A 3.0 ppb (4) 68.0 ppb (52) 0.2 ppb (2) 36.0 μg/m3 (33) 17.0 μg/m3 (61) 61.0
 
March 29, 2020, midnight N/A N/A N/A 5.0 ppb (5) N/A 3.0 ppb (4) 70.0 ppb (54) 0.1 ppb (1) 35.0 μg/m3 (32) 12.0 μg/m3 (50) 54.0
 
March 28, 2020, 11 p.m. N/A N/A N/A 4.0 ppb (4) N/A 3.0 ppb (4) 70.0 ppb (54) 0.1 ppb (1) 25.0 μg/m3 (23) 9.0 μg/m3 (38) 54.0
 
March 28, 2020, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 72.0 ppb (56) 0.1 ppb (1) 29.0 μg/m3 (26) 7.0 μg/m3 (29) 56.0
 
March 28, 2020, 9 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) 77.0 ppb (60) 0.2 ppb (2) 56.0 μg/m3 (50) 29.0 μg/m3 (86) 86.0
 
March 28, 2020, 8 p.m. N/A N/A N/A 10.0 ppb (9) N/A 2.0 ppb (3) 100.0 ppb (79) 0.4 ppb (4) 56.0 μg/m3 (50) 30.0 μg/m3 (88) 88.0
 
March 28, 2020, 7 p.m. N/A N/A N/A 11.0 ppb (10) N/A 3.0 ppb (4) 102.0 ppb (81) 0.4 ppb (4) 45.0 μg/m3 (41) 21.0 μg/m3 (69) 81.0
 
March 28, 2020, 6 p.m. N/A N/A N/A 9.0 ppb (8) N/A 3.0 ppb (4) 78.0 ppb (61) 0.3 ppb (3) 52.0 μg/m3 (47) 26.0 μg/m3 (80) 80.0
 
March 28, 2020, 5 p.m. N/A N/A N/A 12.0 ppb (11) N/A 3.0 ppb (4) 66.0 ppb (51) 0.4 ppb (4) 62.0 μg/m3 (54) 37.0 μg/m3 (104) 104.0
 
March 28, 2020, 4 p.m. N/A N/A N/A 14.0 ppb (13) N/A 3.0 ppb (4) 53.0 ppb (41) 0.4 ppb (4) 43.0 μg/m3 (39) 24.0 μg/m3 (76) 76.0
 
March 28, 2020, 3 p.m. N/A N/A N/A 17.0 ppb (16) N/A 1.0 ppb (1) 34.0 ppb (26) 0.4 ppb (4) 41.0 μg/m3 (37) 21.0 μg/m3 (69) 69.0
 
March 28, 2020, 2 p.m. N/A N/A N/A 28.0 ppb (26) N/A 1.0 ppb (1) 18.0 ppb (14) 0.5 ppb (6) 39.0 μg/m3 (35) 23.0 μg/m3 (73) 73.0
 
March 28, 2020, 1 p.m. N/A N/A N/A 34.0 ppb (31) N/A 1.0 ppb (1) 13.0 ppb (10) 0.5 ppb (6) 34.0 μg/m3 (31) 23.0 μg/m3 (73) 73.0
 
March 28, 2020, noon N/A N/A N/A 26.0 ppb (24) N/A 1.0 ppb (1) 18.0 ppb (14) 0.3 ppb (3) 34.0 μg/m3 (31) 23.0 μg/m3 (73) 73.0
 
March 28, 2020, 11 a.m. N/A N/A N/A 24.0 ppb (22) N/A 1.0 ppb (1) 20.0 ppb (15) 0.3 ppb (3) 33.0 μg/m3 (30) 21.0 μg/m3 (69) 69.0
 
March 28, 2020, 10 a.m. N/A N/A N/A 18.0 ppb (17) N/A 1.0 ppb (1) 26.0 ppb (20) 0.3 ppb (3) 28.0 μg/m3 (25) 18.0 μg/m3 (63) 63.0
 
March 28, 2020, 9 a.m. N/A N/A N/A 19.0 ppb (18) N/A 1.0 ppb (1) 25.0 ppb (19) 0.3 ppb (3) 23.0 μg/m3 (21) 15.0 μg/m3 (56) 56.0
 
March 28, 2020, 8 a.m. N/A N/A N/A 17.0 ppb (16) N/A 1.0 ppb (1) 29.0 ppb (22) 0.3 ppb (3) 30.0 μg/m3 (27) 19.0 μg/m3 (65) 65.0
 
March 28, 2020, 7 a.m. N/A N/A N/A 12.0 ppb (11) N/A 1.0 ppb (1) 36.0 ppb (28) 0.3 ppb (3) 28.0 μg/m3 (25) 18.0 μg/m3 (63) 63.0
 
March 28, 2020, 6 a.m. N/A N/A N/A 15.0 ppb (14) N/A 1.0 ppb (1) 32.0 ppb (25) 0.3 ppb (3) 32.0 μg/m3 (29) 22.0 μg/m3 (71) 71.0
 
March 28, 2020, 5 a.m. N/A N/A N/A 19.0 ppb (18) N/A 1.0 ppb (1) 31.0 ppb (24) 0.5 ppb (6) 23.0 μg/m3 (21) 15.0 μg/m3 (56) 56.0
 
March 28, 2020, 4 a.m. N/A N/A N/A 27.0 ppb (25) N/A 1.0 ppb (1) 22.0 ppb (17) 0.4 ppb (4) 38.0 μg/m3 (35) 24.0 μg/m3 (76) 76.0
 
March 28, 2020, 3 a.m. N/A N/A N/A 32.0 ppb (30) N/A 1.0 ppb (1) 18.0 ppb (14) 0.6 ppb (7) 36.0 μg/m3 (33) 24.0 μg/m3 (76) 76.0
 
March 28, 2020, 2 a.m. N/A N/A N/A 16.0 ppb (15) N/A 1.0 ppb (1) 38.0 ppb (29) 0.4 ppb (4) 30.0 μg/m3 (27) 15.0 μg/m3 (56) 56.0
 
March 28, 2020, 1 a.m. N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) 47.0 ppb (36) 0.2 ppb (2) 35.0 μg/m3 (32) 18.0 μg/m3 (63) 63.0
 
March 28, 2020, midnight N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) 50.0 ppb (38) 0.1 ppb (1) 22.0 μg/m3 (20) 4.0 μg/m3 (17) 38.0
 
March 27, 2020, 11 p.m. N/A N/A N/A 5.0 ppb (5) N/A 2.0 ppb (3) 49.0 ppb (38) 0.1 ppb (1) 36.0 μg/m3 (33) 14.0 μg/m3 (54) 54.0
 
March 27, 2020, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A 3.0 ppb (4) 48.0 ppb (37) 0.1 ppb (1) 51.0 μg/m3 (46) 15.0 μg/m3 (56) 56.0
 
March 27, 2020, 9 p.m. N/A N/A N/A 4.0 ppb (4) N/A 2.0 ppb (3) 46.0 ppb (35) 0.1 ppb (1) 47.0 μg/m3 (43) 16.0 μg/m3 (59) 59.0
 
March 27, 2020, 8 p.m. N/A N/A N/A 4.0 ppb (4) N/A 2.0 ppb (3) 46.0 ppb (35) 0.1 ppb (1) 54.0 μg/m3 (49) 25.0 μg/m3 (78) 78.0
 
March 27, 2020, 7 p.m. N/A N/A N/A 24.0 ppb (22) N/A 2.0 ppb (3) 84.0 ppb (66) 0.5 ppb (6) 64.0 μg/m3 (54) 33.0 μg/m3 (95) 95.0
 
March 27, 2020, 6 p.m. N/A N/A N/A 38.0 ppb (35) N/A 2.0 ppb (3) 72.0 ppb (56) 0.6 ppb (7) 39.0 μg/m3 (35) 17.0 μg/m3 (61) 61.0
 
March 27, 2020, 5 p.m. N/A N/A N/A 25.0 ppb (23) N/A 2.0 ppb (3) 53.0 ppb (41) 0.4 ppb (4) 38.0 μg/m3 (35) 15.0 μg/m3 (56) 56.0
 
March 27, 2020, 4 p.m. N/A N/A N/A 26.0 ppb (24) N/A 1.0 ppb (1) 36.0 ppb (28) 0.4 ppb (4) 41.0 μg/m3 (37) 21.0 μg/m3 (69) 69.0
 
March 27, 2020, 3 p.m. N/A N/A N/A 34.0 ppb (31) N/A 1.0 ppb (1) 20.0 ppb (15) 0.6 ppb (7) 34.0 μg/m3 (31) 18.0 μg/m3 (63) 63.0
 
March 27, 2020, 2 p.m. N/A N/A N/A 37.0 ppb (34) N/A 1.0 ppb (1) 11.0 ppb (8) 0.6 ppb (7) 20.0 μg/m3 (18) 10.0 μg/m3 (42) 42.0
 
March 27, 2020, 1 p.m. N/A N/A N/A 39.0 ppb (36) N/A 1.0 ppb (1) 11.0 ppb (8) 0.4 ppb (4) 14.0 μg/m3 (13) 8.0 μg/m3 (33) 36.0
 
March 27, 2020, noon N/A N/A N/A 37.0 ppb (34) N/A 1.0 ppb (1) 10.0 ppb (8) 0.2 ppb (2) 10.0 μg/m3 (9) 5.0 μg/m3 (21) 34.0
 
March 27, 2020, 11 a.m. N/A N/A N/A 20.0 ppb (19) N/A 1.0 ppb (1) 24.0 ppb (18) 0.1 ppb (1) 10.0 μg/m3 (9) 4.0 μg/m3 (17) 19.0
 
March 27, 2020, 10 a.m. N/A N/A N/A 13.0 ppb (12) N/A 1.0 ppb (1) 27.0 ppb (21) 0.1 ppb (1) 13.0 μg/m3 (12) 7.0 μg/m3 (29) 29.0
 
March 27, 2020, 9 a.m. N/A N/A N/A 12.0 ppb (11) N/A 1.0 ppb (1) 29.0 ppb (22) 0.1 ppb (1) 17.0 μg/m3 (15) 9.0 μg/m3 (38) 38.0
 
March 27, 2020, 8 a.m. N/A N/A N/A 8.0 ppb (7) N/A 1.0 ppb (1) 39.0 ppb (30) 0.1 ppb (1) 18.0 μg/m3 (16) 11.0 μg/m3 (46) 46.0
 
March 27, 2020, 7 a.m. N/A N/A N/A 8.0 ppb (7) N/A 1.0 ppb (1) 41.0 ppb (32) 0.1 ppb (1) 21.0 μg/m3 (19) 12.0 μg/m3 (50) 50.0
 
March 27, 2020, 6 a.m. N/A N/A N/A 18.0 ppb (17) N/A 1.0 ppb (1) 37.0 ppb (28) 0.2 ppb (2) 37.0 μg/m3 (34) 21.0 μg/m3 (69) 69.0
 
March 27, 2020, 5 a.m. N/A N/A N/A 26.0 ppb (24) N/A 1.0 ppb (1) 33.0 ppb (25) 0.3 ppb (3) 52.0 μg/m3 (47) 31.0 μg/m3 (90) 90.0
 
March 27, 2020, 4 a.m. N/A N/A N/A 27.0 ppb (25) N/A 2.0 ppb (3) 37.0 ppb (28) 0.4 ppb (4) 59.0 μg/m3 (52) 33.0 μg/m3 (95) 95.0
 
March 27, 2020, 3 a.m. N/A N/A N/A 32.0 ppb (30) N/A 3.0 ppb (4) 34.0 ppb (26) 0.5 ppb (6) 64.0 μg/m3 (54) 36.0 μg/m3 (101) 101.0
 
March 27, 2020, 2 a.m. N/A N/A N/A 30.0 ppb (28) N/A 4.0 ppb (6) 37.0 ppb (28) 0.5 ppb (6) 79.0 μg/m3 (62) 49.0 μg/m3 (134) 134.0
 
March 27, 2020, 1 a.m. N/A N/A N/A 15.0 ppb (14) N/A 7.0 ppb (10) 61.0 ppb (47) 0.4 ppb (4) 65.0 μg/m3 (55) 32.0 μg/m3 (93) 93.0
 
March 27, 2020, midnight N/A N/A N/A 10.0 ppb (9) N/A 9.0 ppb (13) 68.0 ppb (52) 0.3 ppb (3) 69.0 μg/m3 (57) 26.0 μg/m3 (80) 80.0
 
March 26, 2020, 11 p.m. N/A N/A N/A 6.0 ppb (6) N/A 12.0 ppb (17) 60.0 ppb (46) 0.2 ppb (2) 65.0 μg/m3 (55) 21.0 μg/m3 (69) 69.0
 
March 26, 2020, 10 p.m. N/A N/A N/A 7.0 ppb (6) N/A 7.0 ppb (10) 81.0 ppb (63) 0.2 ppb (2) 69.0 μg/m3 (57) 25.0 μg/m3 (78) 78.0
 
March 26, 2020, 9 p.m. N/A N/A N/A 8.0 ppb (7) N/A 7.0 ppb (10) 84.0 ppb (66) 0.2 ppb (2) 59.0 μg/m3 (52) 15.0 μg/m3 (56) 66.0
 
March 26, 2020, 8 p.m. N/A N/A N/A 11.0 ppb (10) N/A 7.0 ppb (10) 79.0 ppb (62) 0.2 ppb (2) 42.0 μg/m3 (38) 16.0 μg/m3 (59) 62.0
 
March 26, 2020, 7 p.m. N/A N/A N/A 15.0 ppb (14) N/A 4.0 ppb (6) 73.0 ppb (57) 0.3 ppb (3) 54.0 μg/m3 (49) 24.0 μg/m3 (76) 76.0
 
March 26, 2020, 6 p.m. N/A N/A N/A 22.0 ppb (20) N/A 4.0 ppb (6) 68.0 ppb (52) 0.4 ppb (4) 52.0 μg/m3 (47) 24.0 μg/m3 (76) 76.0
 
March 26, 2020, 5 p.m. N/A N/A N/A 25.0 ppb (23) N/A 6.0 ppb (9) 65.0 ppb (50) 0.5 ppb (6) 44.0 μg/m3 (40) 20.0 μg/m3 (67) 67.0
 
March 26, 2020, 4 p.m. N/A N/A N/A 21.0 ppb (19) N/A 8.0 ppb (11) 48.0 ppb (37) 0.5 ppb (6) 48.0 μg/m3 (44) 23.0 μg/m3 (73) 73.0
 
March 26, 2020, 3 p.m. N/A N/A N/A 20.0 ppb (19) N/A 7.0 ppb (10) 33.0 ppb (25) 0.4 ppb (4) 37.0 μg/m3 (34) 17.0 μg/m3 (61) 61.0
 
March 26, 2020, 2 p.m. N/A N/A N/A 32.0 ppb (30) N/A 2.0 ppb (3) 15.0 ppb (12) 0.4 ppb (4) 26.0 μg/m3 (24) 11.0 μg/m3 (46) 46.0
 
March 26, 2020, 1 p.m. N/A N/A N/A 34.0 ppb (31) N/A 1.0 ppb (1) 13.0 ppb (10) 0.3 ppb (3) 23.0 μg/m3 (21) 11.0 μg/m3 (46) 46.0
 
March 26, 2020, noon N/A N/A N/A 31.0 ppb (29) N/A 1.0 ppb (1) 15.0 ppb (12) 0.2 ppb (2) 28.0 μg/m3 (25) 16.0 μg/m3 (59) 59.0
 
March 26, 2020, 11 a.m. N/A N/A N/A 21.0 ppb (19) N/A 2.0 ppb (3) 29.0 ppb (22) 0.2 ppb (2) 33.0 μg/m3 (30) 18.0 μg/m3 (63) 63.0
 
March 26, 2020, 10 a.m. N/A N/A N/A 16.0 ppb (15) N/A 2.0 ppb (3) 38.0 ppb (29) 0.2 ppb (2) 35.0 μg/m3 (32) 20.0 μg/m3 (67) 67.0
 
March 26, 2020, 9 a.m. N/A N/A N/A 32.0 ppb (30) N/A 95.0 ppb (77) 9.0 ppb (7) 9.6 ppb (102) 31.0 μg/m3 (28) 19.0 μg/m3 (65) 102.0
 
March 26, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 31.0 μg/m3 (28) 19.0 μg/m3 (65) 65.0
 
March 26, 2020, 7 a.m. N/A N/A N/A 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 μg/m3 (36) 22.0 μg/m3 (71) 71.0
 
March 26, 2020, 6 a.m. N/A N/A N/A 17.0 ppb (16) N/A 1.0 ppb (1) 39.0 ppb (30) 0.3 ppb (3) 50.0 μg/m3 (45) 27.0 μg/m3 (82) 82.0
 
March 26, 2020, 5 a.m. N/A N/A N/A 22.0 ppb (20) N/A 2.0 ppb (3) 36.0 ppb (28) 0.4 ppb (4) 52.0 μg/m3 (47) 29.0 μg/m3 (86) 86.0
 
March 26, 2020, 4 a.m. N/A N/A N/A 26.0 ppb (24) N/A 2.0 ppb (3) 38.0 ppb (29) 0.4 ppb (4) 56.0 μg/m3 (50) 26.0 μg/m3 (80) 80.0
 
March 26, 2020, 3 a.m. N/A N/A N/A 23.0 ppb (21) N/A 2.0 ppb (3) 45.0 ppb (35) 0.4 ppb (4) 62.0 μg/m3 (54) 27.0 μg/m3 (82) 82.0
 
March 26, 2020, 2 a.m. N/A N/A N/A 24.0 ppb (22) N/A 1.0 ppb (1) 47.0 ppb (36) 0.4 ppb (4) 65.0 μg/m3 (55) 25.0 μg/m3 (78) 78.0
 
March 26, 2020, 1 a.m. N/A N/A N/A 16.0 ppb (15) N/A 1.0 ppb (1) 67.0 ppb (52) 0.4 ppb (4) 54.0 μg/m3 (49) 21.0 μg/m3 (69) 69.0
 
March 26, 2020, midnight N/A N/A N/A 14.0 ppb (13) N/A 2.0 ppb (3) 103.0 ppb (82) 0.3 ppb (3) 56.0 μg/m3 (50) 25.0 μg/m3 (78) 82.0
 
March 25, 2020, 11 p.m. N/A N/A N/A 12.0 ppb (11) N/A 2.0 ppb (3) 122.0 ppb (98) 0.3 ppb (3) 48.0 μg/m3 (44) 23.0 μg/m3 (73) 98.0
 
March 25, 2020, 10 p.m. N/A N/A N/A 11.0 ppb (10) N/A 1.0 ppb (1) 117.0 ppb (93) 0.2 ppb (2) 45.0 μg/m3 (41) 29.0 μg/m3 (86) 93.0
 
March 25, 2020, 9 p.m. N/A N/A N/A 11.0 ppb (10) N/A 2.0 ppb (3) 115.0 ppb (92) 0.3 ppb (3) 43.0 μg/m3 (39) 21.0 μg/m3 (69) 92.0
 
March 25, 2020, 8 p.m. N/A N/A N/A 12.0 ppb (11) N/A 1.0 ppb (1) 97.0 ppb (77) 0.2 ppb (2) 41.0 μg/m3 (37) 18.0 μg/m3 (63) 77.0
 
March 25, 2020, 7 p.m. N/A N/A N/A 16.0 ppb (15) N/A 1.0 ppb (1) 84.0 ppb (66) 0.3 ppb (3) 44.0 μg/m3 (40) 18.0 μg/m3 (63) 66.0
 
March 25, 2020, 6 p.m. N/A N/A N/A 20.0 ppb (19) N/A 1.0 ppb (1) 70.0 ppb (54) 0.4 ppb (4) 51.0 μg/m3 (46) 26.0 μg/m3 (80) 80.0
 
March 25, 2020, 5 p.m. N/A N/A N/A 28.0 ppb (26) N/A 2.0 ppb (3) 56.0 ppb (43) 0.5 ppb (6) 27.0 μg/m3 (25) 13.0 μg/m3 (52) 52.0
 
March 25, 2020, 4 p.m. N/A N/A N/A 19.0 ppb (18) N/A 1.0 ppb (1) 45.0 ppb (35) 0.4 ppb (4) 23.0 μg/m3 (21) 10.0 μg/m3 (42) 42.0
 
March 25, 2020, 3 p.m. N/A N/A N/A 20.0 ppb (19) N/A 1.0 ppb (1) 34.0 ppb (26) 0.3 ppb (3) 22.0 μg/m3 (20) 9.0 μg/m3 (38) 38.0
 
March 25, 2020, 2 p.m. N/A N/A N/A 38.0 ppb (35) N/A 1.0 ppb (1) 15.0 ppb (12) 0.5 ppb (6) 13.0 μg/m3 (12) 4.0 μg/m3 (17) 35.0
 
March 25, 2020, 1 p.m. N/A N/A N/A 40.0 ppb (37) N/A 1.0 ppb (1) 15.0 ppb (12) 0.3 ppb (3) 15.0 μg/m3 (14) 7.0 μg/m3 (29) 37.0
 
March 25, 2020, noon N/A N/A N/A 23.0 ppb (21) N/A 1.0 ppb (1) 29.0 ppb (22) 0.2 ppb (2) 12.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
March 25, 2020, 11 a.m. N/A N/A N/A 13.0 ppb (12) N/A 0.0 ppb (0) 37.0 ppb (28) 0.1 ppb (1) 11.0 μg/m3 (10) 5.0 μg/m3 (21) 28.0
 
March 25, 2020, 10 a.m. N/A N/A N/A 10.0 ppb (9) N/A 1.0 ppb (1) 39.0 ppb (30) 0.1 ppb (1) 14.0 μg/m3 (13) 8.0 μg/m3 (33) 33.0
 
March 25, 2020, 9 a.m. N/A N/A N/A 11.0 ppb (10) N/A 1.0 ppb (1) 39.0 ppb (30) 0.1 ppb (1) 18.0 μg/m3 (16) 9.0 μg/m3 (38) 38.0
 
March 25, 2020, 8 a.m. N/A N/A N/A 18.0 ppb (17) N/A 1.0 ppb (1) 32.0 ppb (25) 0.2 ppb (2) 23.0 μg/m3 (21) 10.0 μg/m3 (42) 42.0
 
March 25, 2020, 7 a.m. N/A N/A N/A 18.0 ppb (17) N/A 1.0 ppb (1) 32.0 ppb (25) 0.2 ppb (2) 28.0 μg/m3 (25) 11.0 μg/m3 (46) 46.0
 
March 25, 2020, 6 a.m. N/A N/A N/A 28.0 ppb (26) N/A 1.0 ppb (1) 20.0 ppb (15) 0.3 ppb (3) 34.0 μg/m3 (31) 16.0 μg/m3 (59) 59.0
 
March 25, 2020, 5 a.m. N/A N/A N/A 33.0 ppb (31) N/A 1.0 ppb (1) 16.0 ppb (12) 0.4 ppb (4) 29.0 μg/m3 (26) 10.0 μg/m3 (42) 42.0
 
March 25, 2020, 4 a.m. N/A N/A N/A 18.0 ppb (17) N/A 1.0 ppb (1) 34.0 ppb (26) 0.3 ppb (3) 41.0 μg/m3 (37) 14.0 μg/m3 (54) 54.0
 
March 25, 2020, 3 a.m. N/A N/A N/A 21.0 ppb (19) N/A 2.0 ppb (3) 38.0 ppb (29) 0.3 ppb (3) 38.0 μg/m3 (35) 16.0 μg/m3 (59) 59.0
 
March 25, 2020, 2 a.m. N/A N/A N/A N/A N/A 7.0 ppb (10) N/A 0.5 ppb (6) 29.0 μg/m3 (26) 13.0 μg/m3 (52) 52.0
 
March 25, 2020, 1 a.m. N/A N/A N/A 19.0 ppb (18) N/A 8.0 ppb (11) 72.0 ppb (56) 0.3 ppb (3) 38.0 μg/m3 (35) 21.0 μg/m3 (69) 69.0
 
March 25, 2020, midnight N/A N/A N/A 9.0 ppb (8) N/A 12.0 ppb (17) 89.0 ppb (70) 0.2 ppb (2) 47.0 μg/m3 (43) 29.0 μg/m3 (86) 86.0
 
March 24, 2020, 11 p.m. N/A N/A N/A 7.0 ppb (6) N/A 14.0 ppb (20) 94.0 ppb (74) 0.2 ppb (2) 30.0 μg/m3 (27) 17.0 μg/m3 (61) 74.0
 
March 24, 2020, 10 p.m. N/A N/A N/A 6.0 ppb (6) N/A 13.0 ppb (19) 89.0 ppb (70) 0.1 ppb (1) 36.0 μg/m3 (33) 16.0 μg/m3 (59) 70.0
 
March 24, 2020, 9 p.m. N/A N/A N/A 7.0 ppb (6) N/A 4.0 ppb (6) 82.0 ppb (64) 0.1 ppb (1) 32.0 μg/m3 (29) 11.0 μg/m3 (46) 64.0
 
March 24, 2020, 8 p.m. N/A N/A N/A 8.0 ppb (7) N/A 2.0 ppb (3) 75.0 ppb (58) 0.2 ppb (2) 31.0 μg/m3 (28) 14.0 μg/m3 (54) 58.0
 
March 24, 2020, 7 p.m. N/A N/A N/A 11.0 ppb (10) N/A 2.0 ppb (3) 64.0 ppb (49) 0.2 ppb (2) 45.0 μg/m3 (41) 22.0 μg/m3 (71) 71.0
 
March 24, 2020, 6 p.m. N/A N/A N/A 27.0 ppb (25) N/A 2.0 ppb (3) 65.0 ppb (50) 0.4 ppb (4) 35.0 μg/m3 (32) 15.0 μg/m3 (56) 56.0
 
March 24, 2020, 5 p.m. N/A N/A N/A 28.0 ppb (26) N/A 1.0 ppb (1) 50.0 ppb (38) 0.5 ppb (6) 21.0 μg/m3 (19) 5.0 μg/m3 (21) 38.0
 
March 24, 2020, 4 p.m. N/A N/A N/A 25.0 ppb (23) N/A 1.0 ppb (1) 38.0 ppb (29) 0.4 ppb (4) 29.0 μg/m3 (26) 12.0 μg/m3 (50) 50.0
 
March 24, 2020, 3 p.m. N/A N/A N/A 27.0 ppb (25) N/A 2.0 ppb (3) 26.0 ppb (20) 0.5 ppb (6) 15.0 μg/m3 (14) 4.0 μg/m3 (17) 25.0
 
March 24, 2020, 2 p.m. N/A N/A N/A 31.0 ppb (29) N/A 1.0 ppb (1) 19.0 ppb (15) 0.3 ppb (3) 23.0 μg/m3 (21) 12.0 μg/m3 (50) 50.0