ID: 2555

AQSQID: 80011G013

Site Name: Estaci¢N Dif

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

Updated: Feb. 27, 2021, 11:32 p.m.

Location: Salamanca (Irapuato), MX

Reporting: True, Located: True

Current AQI: 87.0

Salamanca (Irapuato) MX, MX: 20.558153, -101.20485

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Feb. 27, 2021, 10 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 66.0 ppb (87) 0.38 ppb (5) 26.4 μg/m3 (25) 21.8 μg/m3 (72) 87.0
 
Feb. 27, 2021, 9 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 67.0 ppb (91) 0.37 ppb (5) 29.0 μg/m3 (27) 19.1 μg/m3 (66) 91.0
 
Feb. 27, 2021, 8 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 64.0 ppb (81) 0.35 ppb (4) 28.0 μg/m3 (26) 15.5 μg/m3 (59) 81.0
 
Feb. 27, 2021, 7 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 62.0 ppb (74) 0.4 ppb (5) 43.3 μg/m3 (41) 17.6 μg/m3 (63) 74.0
 
Feb. 27, 2021, 6 p.m. N/A N/A N/A N/A N/A 8.0 ppb (12) 59.0 ppb (65) 0.42 ppb (5) 40.9 μg/m3 (38) 25.3 μg/m3 (79) 79.0
 
Feb. 27, 2021, 5 p.m. N/A N/A N/A N/A N/A 8.0 ppb (12) 44.0 ppb (41) 0.48 ppb (6) 59.5 μg/m3 (54) 33.6 μg/m3 (97) 97.0
 
Feb. 27, 2021, 4 p.m. N/A N/A N/A N/A N/A 9.0 ppb (13) 28.0 ppb (26) 0.85 ppb (10) 112.3 μg/m3 (80) 56.8 μg/m3 (152) 152.0
 
Feb. 27, 2021, 3 p.m. N/A N/A N/A N/A N/A 11.0 ppb (16) 30.0 ppb (28) 1.7 ppb (20) 150.4 μg/m3 (99) 56.2 μg/m3 (152) 152.0
 
Feb. 27, 2021, 2 p.m. N/A N/A N/A N/A N/A 11.0 ppb (16) 46.0 ppb (43) 1.73 ppb (20) 95.6 μg/m3 (72) 38.1 μg/m3 (108) 108.0
 
Feb. 27, 2021, 1 p.m. N/A N/A N/A N/A N/A 9.0 ppb (13) 20.0 ppb (19) 1.1 ppb (13) 78.4 μg/m3 (63) 43.3 μg/m3 (121) 121.0
 
Feb. 27, 2021, noon N/A N/A N/A N/A N/A 9.0 ppb (13) 18.0 ppb (17) 0.68 ppb (8) 89.4 μg/m3 (69) 38.8 μg/m3 (110) 110.0
 
Feb. 27, 2021, 11 a.m. N/A N/A N/A N/A N/A 8.0 ppb (12) 37.0 ppb (35) 0.57 ppb (7) 54.6 μg/m3 (51) 23.6 μg/m3 (76) 76.0
 
Feb. 27, 2021, 10 a.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 23.0 ppb (22) 0.42 ppb (5) 106.5 μg/m3 (77) 34.4 μg/m3 (98) 98.0
 
Feb. 27, 2021, 9 a.m. N/A N/A N/A N/A N/A 8.0 ppb (12) 9.0 ppb (9) 0.72 ppb (8) 92.5 μg/m3 (70) 39.2 μg/m3 (111) 111.0
 
Feb. 27, 2021, 8 a.m. N/A N/A N/A N/A N/A 9.0 ppb (13) 9.0 ppb (9) 0.87 ppb (11) 93.2 μg/m3 (70) 28.2 μg/m3 (85) 85.0
 
Feb. 27, 2021, 7 a.m. N/A N/A N/A N/A N/A 8.0 ppb (12) 7.0 ppb (7) 0.84 ppb (10) 81.4 μg/m3 (65) 23.1 μg/m3 (75) 75.0
 
Feb. 27, 2021, 6 a.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 16.0 ppb (15) 0.69 ppb (8) 61.1 μg/m3 (55) 23.1 μg/m3 (75) 75.0
 
Feb. 27, 2021, 5 a.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 30.0 ppb (28) 0.52 ppb (6) 82.5 μg/m3 (65) 23.8 μg/m3 (76) 76.0
 
Feb. 27, 2021, 4 a.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 39.0 ppb (37) 0.51 ppb (6) 70.3 μg/m3 (59) 31.2 μg/m3 (92) 92.0
 
Feb. 27, 2021, 3 a.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 26.0 ppb (25) 0.96 ppb (12) 106.2 μg/m3 (77) 34.9 μg/m3 (99) 99.0
 
Feb. 27, 2021, 2 a.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 21.0 ppb (20) 1.55 ppb (19) 85.0 μg/m3 (66) 16.2 μg/m3 (60) 66.0
 
Feb. 27, 2021, 1 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 58.0 ppb (61) 0.42 ppb (5) 43.4 μg/m3 (41) 16.6 μg/m3 (61) 61.0
 
Feb. 27, 2021, midnight N/A N/A N/A N/A N/A 7.0 ppb (10) 64.0 ppb (81) 0.33 ppb (4) 30.9 μg/m3 (29) 19.5 μg/m3 (67) 81.0
 
Feb. 26, 2021, 11 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 67.0 ppb (91) 0.37 ppb (5) 32.3 μg/m3 (30) 21.5 μg/m3 (71) 91.0
 
Feb. 26, 2021, 10 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 69.0 ppb (97) 0.37 ppb (5) 30.3 μg/m3 (29) 20.2 μg/m3 (69) 97.0
 
Feb. 26, 2021, 9 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 68.0 ppb (94) 0.39 ppb (5) 31.5 μg/m3 (30) 17.8 μg/m3 (63) 94.0
 
Feb. 26, 2021, 8 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 65.0 ppb (84) 0.44 ppb (5) 36.0 μg/m3 (34) 21.9 μg/m3 (72) 84.0
 
Feb. 26, 2021, 7 p.m. N/A N/A N/A N/A N/A 9.0 ppb (13) 65.0 ppb (84) 0.43 ppb (5) 40.3 μg/m3 (38) 22.2 μg/m3 (73) 84.0
 
Feb. 26, 2021, 6 p.m. N/A N/A N/A N/A N/A 10.0 ppb (15) 55.0 ppb (51) 0.46 ppb (6) 72.4 μg/m3 (60) 34.6 μg/m3 (99) 99.0
 
Feb. 26, 2021, 5 p.m. N/A N/A N/A N/A N/A 22.0 ppb (32) 35.0 ppb (33) 0.67 ppb (8) 104.7 μg/m3 (76) 51.4 μg/m3 (141) 141.0
 
Feb. 26, 2021, 4 p.m. N/A N/A N/A N/A N/A 35.0 ppb (50) 19.0 ppb (18) 0.84 ppb (10) 91.1 μg/m3 (69) 41.6 μg/m3 (117) 117.0
 
Feb. 26, 2021, 3 p.m. N/A N/A N/A N/A N/A 10.0 ppb (15) 11.0 ppb (11) 0.85 ppb (10) 85.4 μg/m3 (67) 32.7 μg/m3 (95) 95.0
 
Feb. 26, 2021, 2 p.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 8.0 ppb (8) 0.97 ppb (12) 94.9 μg/m3 (71) 23.7 μg/m3 (76) 76.0
 
Feb. 26, 2021, 1 p.m. N/A N/A N/A N/A N/A 11.0 ppb (16) 8.0 ppb (8) 0.85 ppb (10) 64.2 μg/m3 (56) 24.5 μg/m3 (78) 78.0
 
Feb. 26, 2021, noon N/A N/A N/A N/A N/A 12.0 ppb (18) 7.0 ppb (7) 0.54 ppb (6) 55.4 μg/m3 (52) 24.8 μg/m3 (78) 78.0
 
Feb. 26, 2021, 11 a.m. N/A N/A N/A N/A N/A 11.0 ppb (16) 7.0 ppb (7) 0.41 ppb (5) 50.2 μg/m3 (47) 23.7 μg/m3 (76) 76.0
 
Feb. 26, 2021, 10 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 7.0 ppb (7) 0.33 ppb (4) 48.1 μg/m3 (45) 22.3 μg/m3 (73) 73.0
 
Feb. 26, 2021, 9 a.m. N/A N/A N/A N/A N/A 21.0 ppb (30) 13.0 ppb (13) 0.3 ppb (4) 47.6 μg/m3 (45) 26.0 μg/m3 (81) 81.0
 
Feb. 26, 2021, 8 a.m. N/A N/A N/A N/A N/A 27.0 ppb (39) 16.0 ppb (15) 0.3 ppb (4) 57.2 μg/m3 (53) 19.4 μg/m3 (67) 67.0
 
Feb. 26, 2021, 7 a.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 19.0 ppb (18) 0.3 ppb (4) 43.0 μg/m3 (40) 22.9 μg/m3 (74) 74.0
 
Feb. 26, 2021, 6 a.m. N/A N/A N/A N/A N/A 10.0 ppb (15) 17.0 ppb (16) 0.37 ppb (5) 62.6 μg/m3 (55) 19.7 μg/m3 (67) 67.0
 
Feb. 26, 2021, 5 a.m. N/A N/A N/A N/A N/A 11.0 ppb (16) 17.0 ppb (16) 0.55 ppb (7) 76.5 μg/m3 (62) 29.4 μg/m3 (88) 88.0
 
Feb. 26, 2021, 4 a.m. N/A N/A N/A N/A N/A 17.0 ppb (25) 14.0 ppb (13) 1.13 ppb (13) 96.6 μg/m3 (72) 28.1 μg/m3 (85) 85.0
 
Feb. 26, 2021, 3 a.m. N/A N/A N/A N/A N/A 8.0 ppb (12) 8.0 ppb (8) 1.3 ppb (15) 140.1 μg/m3 (94) 48.5 μg/m3 (134) 134.0
 
Feb. 26, 2021, 2 a.m. N/A N/A N/A N/A N/A 8.0 ppb (12) 9.0 ppb (9) 1.92 ppb (22) N/A 13.6 μg/m3 (55) 55.0
 
Feb. 26, 2021, 1 a.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 45.0 ppb (42) 0.67 ppb (8) 37.2 μg/m3 (35) 13.9 μg/m3 (55) 55.0
 
Feb. 26, 2021, midnight N/A N/A N/A N/A N/A 7.0 ppb (10) 59.0 ppb (65) 0.25 ppb (3) 3.9 μg/m3 (4) 22.4 μg/m3 (73) 73.0
 
Feb. 25, 2021, 11 p.m. N/A N/A N/A N/A N/A 8.0 ppb (12) 63.0 ppb (78) 0.26 ppb (4) 22.8 μg/m3 (22) 10.6 μg/m3 (45) 78.0
 
Feb. 25, 2021, 10 p.m. N/A N/A N/A N/A N/A 8.0 ppb (12) 57.0 ppb (58) 0.32 ppb (4) 20.3 μg/m3 (19) 14.9 μg/m3 (57) 58.0
 
Feb. 25, 2021, 9 p.m. N/A N/A N/A N/A N/A 9.0 ppb (13) 52.0 ppb (49) 0.4 ppb (5) 7.6 μg/m3 (8) 18.0 μg/m3 (64) 64.0
 
Feb. 25, 2021, 8 p.m. N/A N/A N/A N/A N/A 8.0 ppb (12) 48.0 ppb (45) 0.35 ppb (4) 10.2 μg/m3 (10) 12.0 μg/m3 (50) 50.0
 
Feb. 25, 2021, 7 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 45.0 ppb (42) 0.46 ppb (6) 28.4 μg/m3 (27) 11.9 μg/m3 (50) 50.0
 
Feb. 25, 2021, 6 p.m. N/A N/A N/A N/A N/A 10.0 ppb (15) 41.0 ppb (38) 0.45 ppb (6) 45.2 μg/m3 (42) 11.4 μg/m3 (48) 48.0
 
Feb. 25, 2021, 5 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 34.0 ppb (32) 0.55 ppb (7) 77.6 μg/m3 (63) 27.9 μg/m3 (85) 85.0
 
Feb. 25, 2021, 4 p.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 21.0 ppb (20) 0.71 ppb (8) 87.3 μg/m3 (67) 37.5 μg/m3 (106) 106.0
 
Feb. 25, 2021, 3 p.m. N/A N/A N/A N/A N/A 18.0 ppb (26) 12.0 ppb (12) 0.86 ppb (11) 68.9 μg/m3 (58) 26.7 μg/m3 (82) 82.0
 
Feb. 25, 2021, 2 p.m. N/A N/A N/A N/A N/A 10.0 ppb (15) 9.0 ppb (9) 0.78 ppb (10) 72.8 μg/m3 (60) 35.5 μg/m3 (101) 101.0
 
Feb. 25, 2021, 1 p.m. N/A N/A N/A N/A N/A 18.0 ppb (26) 7.0 ppb (7) 0.61 ppb (7) 66.8 μg/m3 (57) 28.5 μg/m3 (86) 86.0
 
Feb. 25, 2021, noon N/A N/A N/A N/A N/A 17.0 ppb (25) 13.0 ppb (13) 0.39 ppb (5) 42.6 μg/m3 (40) 18.1 μg/m3 (64) 64.0
 
Feb. 25, 2021, 11 a.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 21.0 ppb (20) 0.22 ppb (3) 21.9 μg/m3 (21) 10.6 μg/m3 (45) 45.0
 
Feb. 25, 2021, 10 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 30.0 ppb (28) 0.2 ppb (3) 15.4 μg/m3 (15) 9.2 μg/m3 (39) 39.0
 
Feb. 25, 2021, 9 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 24.0 ppb (23) 0.22 ppb (3) 28.8 μg/m3 (27) 23.7 μg/m3 (76) 76.0
 
Feb. 25, 2021, 8 a.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 16.0 ppb (15) 0.34 ppb (4) 50.2 μg/m3 (47) 17.0 μg/m3 (62) 62.0
 
Feb. 25, 2021, 7 a.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 19.0 ppb (18) 0.34 ppb (4) 39.3 μg/m3 (37) 13.1 μg/m3 (54) 54.0
 
Feb. 25, 2021, 6 a.m. N/A N/A N/A N/A N/A 11.0 ppb (16) 28.0 ppb (26) 0.26 ppb (4) 37.8 μg/m3 (35) 18.3 μg/m3 (65) 65.0
 
Feb. 25, 2021, 5 a.m. N/A N/A N/A N/A N/A 26.0 ppb (38) 33.0 ppb (31) 0.36 ppb (5) 41.3 μg/m3 (39) 7.8 μg/m3 (33) 39.0
 
Feb. 25, 2021, 4 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 37.0 ppb (35) 0.28 ppb (4) 39.5 μg/m3 (37) 6.5 μg/m3 (28) 37.0
 
Feb. 25, 2021, 3 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 34.0 ppb (32) 0.33 ppb (4) 58.4 μg/m3 (53) 20.1 μg/m3 (68) 68.0
 
Feb. 25, 2021, 2 a.m. N/A N/A N/A N/A N/A 22.0 ppb (32) 30.0 ppb (28) 0.45 ppb (6) 94.5 μg/m3 (71) 21.6 μg/m3 (71) 71.0
 
Feb. 25, 2021, 1 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 56.0 ppb (55) 0.68 ppb (8) 66.3 μg/m3 (57) 24.6 μg/m3 (78) 78.0
 
Feb. 25, 2021, midnight N/A N/A N/A N/A N/A 17.0 ppb (25) 80.0 ppb (106) 0.41 ppb (5) 53.9 μg/m3 (50) 23.0 μg/m3 (74) 106.0
 
Feb. 24, 2021, 11 p.m. N/A N/A N/A N/A N/A 19.0 ppb (28) 78.0 ppb (105) 0.41 ppb (5) 40.5 μg/m3 (38) 19.2 μg/m3 (66) 105.0
 
Feb. 24, 2021, 10 p.m. N/A N/A N/A N/A N/A 23.0 ppb (33) 85.0 ppb (109) 0.42 ppb (5) 40.7 μg/m3 (38) 12.5 μg/m3 (52) 109.0
 
Feb. 24, 2021, 9 p.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 76.0 ppb (104) 0.37 ppb (5) 19.3 μg/m3 (18) 20.2 μg/m3 (69) 104.0
 
Feb. 24, 2021, 8 p.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 69.0 ppb (97) 0.28 ppb (4) 14.3 μg/m3 (14) 23.0 μg/m3 (74) 97.0
 
Feb. 24, 2021, 7 p.m. N/A N/A N/A N/A N/A 9.0 ppb (13) 61.0 ppb (71) 0.33 ppb (4) 22.4 μg/m3 (21) 17.6 μg/m3 (63) 71.0
 
Feb. 24, 2021, 6 p.m. N/A N/A N/A N/A N/A 10.0 ppb (15) 50.0 ppb (47) 0.41 ppb (5) 38.6 μg/m3 (36) 23.0 μg/m3 (74) 74.0
 
Feb. 24, 2021, 5 p.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 34.0 ppb (32) 0.56 ppb (7) 56.7 μg/m3 (52) 26.1 μg/m3 (81) 81.0
 
Feb. 24, 2021, 4 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 29.0 ppb (27) 0.58 ppb (7) 63.1 μg/m3 (56) 30.4 μg/m3 (90) 90.0
 
Feb. 24, 2021, 3 p.m. N/A N/A N/A N/A N/A 8.0 ppb (12) 21.0 ppb (20) 0.74 ppb (8) 89.5 μg/m3 (69) 38.3 μg/m3 (108) 108.0
 
Feb. 24, 2021, 2 p.m. N/A N/A N/A N/A N/A 8.0 ppb (12) 16.0 ppb (15) 0.96 ppb (12) 63.1 μg/m3 (56) 31.9 μg/m3 (93) 93.0
 
Feb. 24, 2021, 1 p.m. N/A N/A N/A N/A N/A 10.0 ppb (15) 11.0 ppb (11) 0.65 ppb (8) 51.4 μg/m3 (48) 27.7 μg/m3 (84) 84.0
 
Feb. 24, 2021, noon N/A N/A N/A N/A N/A 14.0 ppb (20) 22.0 ppb (21) 0.46 ppb (6) 59.8 μg/m3 (54) 31.7 μg/m3 (93) 93.0
 
Feb. 24, 2021, 11 a.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 16.0 ppb (15) 0.38 ppb (5) 45.7 μg/m3 (43) 22.8 μg/m3 (74) 74.0
 
Feb. 24, 2021, 10 a.m. N/A N/A N/A N/A N/A 11.0 ppb (16) 29.0 ppb (27) 0.3 ppb (4) 33.6 μg/m3 (32) 23.3 μg/m3 (75) 75.0
 
Feb. 24, 2021, 9 a.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 35.0 ppb (33) 0.31 ppb (4) 45.9 μg/m3 (43) 29.6 μg/m3 (88) 88.0
 
Feb. 24, 2021, 8 a.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 36.0 ppb (34) 0.32 ppb (4) 50.6 μg/m3 (47) 21.5 μg/m3 (71) 71.0
 
Feb. 24, 2021, 7 a.m. N/A N/A N/A N/A N/A 9.0 ppb (13) 35.0 ppb (33) 0.31 ppb (4) 52.2 μg/m3 (49) 19.8 μg/m3 (68) 68.0
 
Feb. 24, 2021, 6 a.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 32.0 ppb (30) 0.37 ppb (5) 49.1 μg/m3 (46) 24.0 μg/m3 (77) 77.0
 
Feb. 24, 2021, 5 a.m. N/A N/A N/A N/A N/A 36.0 ppb (51) 33.0 ppb (31) 0.66 ppb (8) 51.8 μg/m3 (48) 13.8 μg/m3 (55) 55.0
 
Feb. 24, 2021, 4 a.m. N/A N/A N/A N/A N/A 23.0 ppb (33) 45.0 ppb (42) 0.78 ppb (10) 59.9 μg/m3 (54) 27.6 μg/m3 (84) 84.0
 
Feb. 24, 2021, 3 a.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 33.0 ppb (31) 0.98 ppb (12) 116.6 μg/m3 (82) 36.1 μg/m3 (103) 103.0
 
Feb. 24, 2021, 2 a.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 26.0 ppb (25) 0.87 ppb (11) 103.5 μg/m3 (76) 17.3 μg/m3 (62) 76.0
 
Feb. 24, 2021, 1 a.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 59.0 ppb (65) 0.5 ppb (6) 67.7 μg/m3 (58) 22.3 μg/m3 (73) 73.0
 
Feb. 24, 2021, midnight N/A N/A N/A N/A N/A 14.0 ppb (20) 76.0 ppb (104) 0.43 ppb (5) 46.9 μg/m3 (44) 16.7 μg/m3 (61) 104.0
 
Feb. 23, 2021, 11 p.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 78.0 ppb (105) 0.45 ppb (6) 27.7 μg/m3 (26) 16.2 μg/m3 (60) 105.0
 
Feb. 23, 2021, 10 p.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 77.0 ppb (105) 0.43 ppb (5) 24.6 μg/m3 (23) 27.1 μg/m3 (83) 105.0
 
Feb. 23, 2021, 9 p.m. N/A N/A N/A N/A N/A 10.0 ppb (15) 73.0 ppb (103) 0.47 ppb (6) 33.1 μg/m3 (31) 23.8 μg/m3 (76) 103.0
 
Feb. 23, 2021, 8 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 69.0 ppb (97) 0.6 ppb (7) 44.1 μg/m3 (41) 26.1 μg/m3 (81) 97.0
 
Feb. 23, 2021, 7 p.m. N/A N/A N/A N/A N/A 8.0 ppb (12) 57.0 ppb (58) 0.56 ppb (7) 49.9 μg/m3 (47) 20.9 μg/m3 (70) 70.0
 
Feb. 23, 2021, 6 p.m. N/A N/A N/A N/A N/A 11.0 ppb (16) 46.0 ppb (43) 0.6 ppb (7) 42.6 μg/m3 (40) 21.4 μg/m3 (71) 71.0
 
Feb. 23, 2021, 5 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 38.0 ppb (36) N/A 46.0 μg/m3 (43) 26.4 μg/m3 (82) 82.0
 
Feb. 23, 2021, 4 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 32.0 ppb (30) N/A 38.4 μg/m3 (36) 19.9 μg/m3 (68) 68.0
 
Feb. 23, 2021, 3 p.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 27.0 ppb (25) N/A 45.6 μg/m3 (43) 23.8 μg/m3 (76) 76.0
 
Feb. 23, 2021, 2 p.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 21.0 ppb (20) N/A 49.3 μg/m3 (46) 22.5 μg/m3 (73) 73.0
 
Feb. 23, 2021, 1 p.m. N/A N/A N/A N/A N/A 17.0 ppb (25) 25.0 ppb (24) N/A 40.6 μg/m3 (38) 19.3 μg/m3 (67) 67.0
 
Feb. 23, 2021, noon N/A N/A N/A N/A N/A 10.0 ppb (15) 31.0 ppb (29) N/A 26.9 μg/m3 (25) 14.4 μg/m3 (56) 56.0
 
Feb. 23, 2021, 11 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 40.0 ppb (38) N/A 14.9 μg/m3 (14) 13.9 μg/m3 (55) 55.0
 
Feb. 23, 2021, 10 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 41.0 ppb (38) N/A 22.9 μg/m3 (22) 14.8 μg/m3 (57) 57.0
 
Feb. 23, 2021, 9 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 38.0 ppb (36) N/A 21.8 μg/m3 (21) 17.8 μg/m3 (63) 63.0
 
Feb. 23, 2021, 8 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 39.0 ppb (37) N/A 34.8 μg/m3 (33) 14.3 μg/m3 (56) 56.0
 
Feb. 23, 2021, 7 a.m. N/A N/A N/A N/A N/A 8.0 ppb (12) 38.0 ppb (36) N/A 49.3 μg/m3 (46) 23.7 μg/m3 (76) 76.0
 
Feb. 23, 2021, 6 a.m. N/A N/A N/A N/A N/A 10.0 ppb (15) 40.0 ppb (38) N/A 62.3 μg/m3 (55) 41.8 μg/m3 (117) 117.0
 
Feb. 23, 2021, 5 a.m. N/A N/A N/A N/A N/A 10.0 ppb (15) 38.0 ppb (36) N/A 67.0 μg/m3 (57) 39.1 μg/m3 (110) 110.0
 
Feb. 23, 2021, 4 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 36.0 ppb (34) N/A 76.7 μg/m3 (62) 50.6 μg/m3 (139) 139.0
 
Feb. 23, 2021, 3 a.m. N/A N/A N/A N/A N/A 67.0 ppb (90) 37.0 ppb (35) N/A 112.5 μg/m3 (80) 41.9 μg/m3 (117) 117.0
 
Feb. 23, 2021, 2 a.m. N/A N/A N/A N/A N/A 27.0 ppb (39) 42.0 ppb (39) N/A 100.0 μg/m3 (74) 35.1 μg/m3 (100) 100.0
 
Feb. 23, 2021, 1 a.m. N/A N/A N/A N/A N/A 10.0 ppb (15) 67.0 ppb (91) N/A 63.4 μg/m3 (56) 28.1 μg/m3 (85) 91.0
 
Feb. 23, 2021, midnight N/A N/A N/A N/A N/A 10.0 ppb (15) 74.0 ppb (103) N/A 43.6 μg/m3 (41) 33.2 μg/m3 (96) 103.0
 
Feb. 22, 2021, 11 p.m. N/A N/A N/A N/A N/A 9.0 ppb (13) 76.0 ppb (104) N/A 44.8 μg/m3 (42) 34.3 μg/m3 (98) 104.0
 
Feb. 22, 2021, 10 p.m. N/A N/A N/A N/A N/A 11.0 ppb (16) 75.0 ppb (104) N/A 42.2 μg/m3 (40) 26.9 μg/m3 (83) 104.0
 
Feb. 22, 2021, 9 p.m. N/A N/A N/A N/A N/A 10.0 ppb (15) 67.0 ppb (91) N/A 37.5 μg/m3 (35) 25.1 μg/m3 (79) 91.0
 
Feb. 22, 2021, 8 p.m. N/A N/A N/A N/A N/A 11.0 ppb (16) 59.0 ppb (65) N/A 29.4 μg/m3 (28) 33.9 μg/m3 (97) 97.0
 
Feb. 22, 2021, 7 p.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 60.0 ppb (68) N/A 37.1 μg/m3 (35) 37.9 μg/m3 (107) 107.0
 
Feb. 22, 2021, 6 p.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 59.0 ppb (65) N/A 59.6 μg/m3 (54) 61.9 μg/m3 (155) 155.0
 
Feb. 22, 2021, 5 p.m. N/A N/A N/A N/A N/A 144.0 ppb (132) 59.0 ppb (65) N/A 94.0 μg/m3 (71) 62.7 μg/m3 (155) 155.0
 
Feb. 22, 2021, 4 p.m. N/A N/A N/A N/A N/A 112.0 ppb (118) 43.0 ppb (40) N/A 112.0 μg/m3 (80) 66.7 μg/m3 (157) 157.0
 
Feb. 22, 2021, 3 p.m. N/A N/A N/A N/A N/A 18.0 ppb (26) 12.0 ppb (12) N/A 139.6 μg/m3 (93) 61.1 μg/m3 (154) 154.0
 
Feb. 22, 2021, 2 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 7.0 ppb (7) N/A 79.5 μg/m3 (64) 18.0 μg/m3 (64) 64.0
 
Feb. 22, 2021, 1 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 14.0 ppb (13) N/A 45.4 μg/m3 (43) 23.8 μg/m3 (76) 76.0
 
Feb. 22, 2021, noon N/A N/A N/A N/A N/A 7.0 ppb (10) 11.0 ppb (11) N/A 40.8 μg/m3 (38) 15.1 μg/m3 (58) 58.0
 
Feb. 22, 2021, 11 a.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 23.0 ppb (22) N/A 37.1 μg/m3 (35) 14.1 μg/m3 (56) 56.0
 
Feb. 22, 2021, 10 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 27.0 ppb (25) N/A 32.9 μg/m3 (31) 16.3 μg/m3 (60) 60.0
 
Feb. 22, 2021, 9 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 29.0 ppb (27) N/A 40.1 μg/m3 (38) 22.1 μg/m3 (73) 73.0
 
Feb. 22, 2021, 8 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 26.0 ppb (25) N/A 61.1 μg/m3 (55) 27.6 μg/m3 (84) 84.0
 
Feb. 22, 2021, 7 a.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 18.0 ppb (17) N/A 56.8 μg/m3 (52) 15.6 μg/m3 (59) 59.0
 
Feb. 22, 2021, 6 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 31.0 ppb (29) N/A 48.4 μg/m3 (45) 18.2 μg/m3 (64) 64.0
 
Feb. 22, 2021, 5 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 32.0 ppb (30) N/A 59.3 μg/m3 (54) 22.4 μg/m3 (73) 73.0
 
Feb. 22, 2021, 4 a.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 39.0 ppb (37) N/A 67.5 μg/m3 (58) 18.8 μg/m3 (66) 66.0
 
Feb. 22, 2021, 3 a.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 43.0 ppb (40) N/A 57.7 μg/m3 (53) 18.7 μg/m3 (65) 65.0
 
Feb. 22, 2021, 2 a.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 46.0 ppb (43) N/A 58.9 μg/m3 (53) 20.5 μg/m3 (69) 69.0
 
Feb. 22, 2021, 1 a.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 61.0 ppb (71) N/A 55.7 μg/m3 (52) 12.1 μg/m3 (51) 71.0
 
Feb. 22, 2021, midnight N/A N/A N/A N/A N/A 7.0 ppb (10) 67.0 ppb (91) N/A 35.3 μg/m3 (33) 15.5 μg/m3 (59) 91.0
 
Feb. 21, 2021, 11 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 65.0 ppb (84) N/A 32.9 μg/m3 (31) 14.4 μg/m3 (56) 84.0
 
Feb. 21, 2021, 10 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 66.0 ppb (87) N/A 21.3 μg/m3 (20) 14.3 μg/m3 (56) 87.0
 
Feb. 21, 2021, 9 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 61.0 ppb (71) N/A 19.3 μg/m3 (18) 14.1 μg/m3 (56) 71.0
 
Feb. 21, 2021, 8 p.m. N/A N/A N/A N/A N/A 8.0 ppb (12) 61.0 ppb (71) N/A 32.0 μg/m3 (30) 28.3 μg/m3 (86) 86.0
 
Feb. 21, 2021, 7 p.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 62.0 ppb (74) N/A 50.7 μg/m3 (47) 25.4 μg/m3 (79) 79.0
 
Feb. 21, 2021, 6 p.m. N/A N/A N/A N/A N/A 15.0 ppb (22) 52.0 ppb (49) N/A 57.7 μg/m3 (53) 36.1 μg/m3 (103) 103.0
 
Feb. 21, 2021, 5 p.m. N/A N/A N/A N/A N/A 28.0 ppb (40) 41.0 ppb (38) N/A 73.7 μg/m3 (61) 32.4 μg/m3 (94) 94.0
 
Feb. 21, 2021, 4 p.m. N/A N/A N/A N/A N/A 19.0 ppb (28) 21.0 ppb (20) N/A 66.8 μg/m3 (57) 38.3 μg/m3 (108) 108.0
 
Feb. 21, 2021, 3 p.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 13.0 ppb (13) N/A 90.8 μg/m3 (69) 38.7 μg/m3 (109) 109.0
 
Feb. 21, 2021, 2 p.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 8.0 ppb (8) N/A 87.1 μg/m3 (67) 32.1 μg/m3 (94) 94.0
 
Feb. 21, 2021, 1 p.m. N/A N/A N/A N/A N/A 17.0 ppb (25) 8.0 ppb (8) N/A 82.1 μg/m3 (65) 35.3 μg/m3 (100) 100.0
 
Feb. 21, 2021, noon N/A N/A N/A N/A N/A 43.0 ppb (60) 10.0 ppb (10) N/A 116.7 μg/m3 (82) 42.9 μg/m3 (120) 120.0
 
Feb. 21, 2021, 11 a.m. N/A N/A N/A N/A N/A 51.0 ppb (70) 9.0 ppb (9) N/A 113.0 μg/m3 (80) 39.5 μg/m3 (111) 111.0
 
Feb. 21, 2021, 10 a.m. N/A N/A N/A N/A N/A 29.0 ppb (42) 11.0 ppb (11) N/A 78.8 μg/m3 (63) 32.1 μg/m3 (94) 94.0
 
Feb. 21, 2021, 6 a.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 10.0 ppb (10) N/A 174.7 μg/m3 (111) 73.6 μg/m3 (161) 161.0
 
Feb. 21, 2021, 5 a.m. N/A N/A N/A N/A N/A 11.0 ppb (16) 8.0 ppb (8) N/A 192.7 μg/m3 (120) 57.4 μg/m3 (152) 152.0
 
Feb. 21, 2021, 4 a.m. N/A N/A N/A N/A N/A 9.0 ppb (13) 7.0 ppb (7) N/A 183.9 μg/m3 (116) 47.3 μg/m3 (131) 131.0
 
Feb. 21, 2021, 3 a.m. N/A N/A N/A N/A N/A 9.0 ppb (13) 8.0 ppb (8) N/A N/A 38.5 μg/m3 (109) 109.0
 
Feb. 21, 2021, 2 a.m. N/A N/A N/A N/A N/A 8.0 ppb (12) 19.0 ppb (18) N/A 93.3 μg/m3 (70) 17.6 μg/m3 (63) 70.0
 
Feb. 21, 2021, 1 a.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 56.0 ppb (55) N/A 51.3 μg/m3 (48) 9.3 μg/m3 (39) 55.0
 
Feb. 21, 2021, midnight N/A N/A N/A N/A N/A 8.0 ppb (12) 67.0 ppb (91) N/A 34.8 μg/m3 (33) 8.9 μg/m3 (38) 91.0
 
Feb. 20, 2021, 11 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 63.0 ppb (78) N/A 24.1 μg/m3 (23) 10.3 μg/m3 (43) 78.0
 
Feb. 20, 2021, 10 p.m. N/A N/A N/A N/A N/A 9.0 ppb (13) 64.0 ppb (81) N/A 21.0 μg/m3 (20) 22.6 μg/m3 (74) 81.0
 
Feb. 20, 2021, 9 p.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 68.0 ppb (94) N/A 30.0 μg/m3 (28) 25.4 μg/m3 (79) 94.0
 
Feb. 20, 2021, 8 p.m. N/A N/A N/A N/A N/A 22.0 ppb (32) 60.0 ppb (68) N/A 33.9 μg/m3 (32) 23.9 μg/m3 (76) 76.0