ID: 2555

AQSQID: 80011G013

Site Name: Estaci¢N Dif

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

Updated: May 12, 2021, 3:44 a.m.

Location: Salamanca (Irapuato), MX

Reporting: True, Located: True

Current AQI: 66.0

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
May 12, 2021, 3 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 36.0 ppb (34) 0.94 ppb (11) 49.8 μg/m3 (47) 17.3 μg/m3 (62) 62.0
 
May 12, 2021, 2 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 45.0 ppb (42) 0.86 ppb (11) 50.4 μg/m3 (47) 18.8 μg/m3 (66) 66.0
 
May 12, 2021, 1 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 49.0 ppb (46) 0.88 ppb (11) 39.4 μg/m3 (37) 21.0 μg/m3 (70) 70.0
 
May 12, 2021, midnight N/A N/A N/A N/A N/A 5.0 ppb (8) 57.0 ppb (58) 0.8 ppb (10) 20.2 μg/m3 (19) 16.1 μg/m3 (60) 60.0
 
May 11, 2021, 11 p.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 52.0 ppb (49) 0.8 ppb (10) 17.7 μg/m3 (17) 16.4 μg/m3 (61) 61.0
 
May 11, 2021, 10 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 45.0 ppb (42) 0.84 ppb (10) 47.3 μg/m3 (44) 28.7 μg/m3 (86) 86.0
 
May 11, 2021, 9 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 69.0 ppb (97) 0.88 ppb (11) 65.3 μg/m3 (57) 33.5 μg/m3 (97) 97.0
 
May 11, 2021, 8 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 85.0 ppb (109) 0.76 ppb (10) 34.4 μg/m3 (32) 34.3 μg/m3 (98) 109.0
 
May 11, 2021, 7 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 76.0 ppb (104) 0.77 ppb (10) 23.4 μg/m3 (22) 36.1 μg/m3 (103) 104.0
 
May 11, 2021, 6 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 68.0 ppb (94) 0.79 ppb (10) 31.9 μg/m3 (30) 37.4 μg/m3 (106) 106.0
 
May 11, 2021, 5 p.m. N/A N/A N/A N/A N/A 9.0 ppb (13) 50.0 ppb (47) 0.86 ppb (11) 40.5 μg/m3 (38) 32.9 μg/m3 (95) 95.0
 
May 11, 2021, 4 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 36.0 ppb (34) 0.91 ppb (11) 30.3 μg/m3 (29) 24.1 μg/m3 (77) 77.0
 
May 11, 2021, 3 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 29.0 ppb (27) 0.93 ppb (11) 35.3 μg/m3 (33) 23.8 μg/m3 (76) 76.0
 
May 11, 2021, 2 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 17.0 ppb (16) 1.1 ppb (13) 46.3 μg/m3 (43) 31.9 μg/m3 (93) 93.0
 
May 11, 2021, 1 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 5.0 ppb (5) 1.0 ppb (12) 32.0 μg/m3 (30) 13.2 μg/m3 (54) 54.0
 
May 11, 2021, noon N/A N/A N/A N/A N/A 6.0 ppb (9) 8.0 ppb (8) 0.78 ppb (10) 25.5 μg/m3 (24) 11.9 μg/m3 (50) 50.0
 
May 11, 2021, 11 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 38.0 ppb (36) 0.71 ppb (8) 23.4 μg/m3 (22) 17.6 μg/m3 (63) 63.0
 
May 11, 2021, 10 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 33.0 ppb (31) 0.66 ppb (8) 17.1 μg/m3 (16) 25.1 μg/m3 (79) 79.0
 
May 11, 2021, 9 a.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 33.0 ppb (31) 0.65 ppb (8) 22.3 μg/m3 (21) 14.4 μg/m3 (56) 56.0
 
May 11, 2021, 8 a.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 32.0 ppb (30) 0.67 ppb (8) 21.9 μg/m3 (21) 14.7 μg/m3 (57) 57.0
 
May 11, 2021, 7 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 35.0 ppb (33) 0.72 ppb (8) 14.7 μg/m3 (14) 15.2 μg/m3 (58) 58.0
 
May 11, 2021, 6 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 36.0 ppb (34) 0.71 ppb (8) 19.4 μg/m3 (18) 17.1 μg/m3 (62) 62.0
 
May 11, 2021, 5 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 37.0 ppb (35) 0.72 ppb (8) 31.0 μg/m3 (29) 7.0 μg/m3 (30) 35.0
 
May 11, 2021, 4 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 43.0 ppb (40) 0.72 ppb (8) 29.8 μg/m3 (28) 15.2 μg/m3 (58) 58.0
 
May 11, 2021, 3 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 43.0 ppb (40) 0.71 ppb (8) 19.6 μg/m3 (19) 7.7 μg/m3 (33) 40.0
 
May 11, 2021, 2 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 39.0 ppb (37) 0.74 ppb (8) 31.0 μg/m3 (29) 8.1 μg/m3 (34) 37.0
 
May 11, 2021, 1 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 38.0 ppb (36) 0.7 ppb (8) 34.7 μg/m3 (33) 8.6 μg/m3 (36) 36.0
 
May 11, 2021, midnight N/A N/A N/A N/A N/A 5.0 ppb (8) 48.0 ppb (45) 0.72 ppb (8) 58.2 μg/m3 (53) 20.0 μg/m3 (68) 68.0
 
May 10, 2021, 11 p.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 76.0 ppb (104) 0.76 ppb (10) 36.4 μg/m3 (34) 21.8 μg/m3 (72) 104.0
 
May 10, 2021, 10 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 79.0 ppb (106) 0.72 ppb (8) 15.6 μg/m3 (15) 26.0 μg/m3 (81) 106.0
 
May 10, 2021, 9 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 77.0 ppb (105) 0.73 ppb (8) 25.4 μg/m3 (24) 24.4 μg/m3 (77) 105.0
 
May 10, 2021, 8 p.m. N/A N/A N/A N/A N/A 8.0 ppb (12) 76.0 ppb (104) 0.76 ppb (10) 32.8 μg/m3 (31) 32.8 μg/m3 (95) 104.0
 
May 10, 2021, 7 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 74.0 ppb (103) 0.85 ppb (10) 35.5 μg/m3 (33) 47.6 μg/m3 (131) 131.0
 
May 10, 2021, 6 p.m. N/A N/A N/A N/A N/A 26.0 ppb (38) 68.0 ppb (94) 0.95 ppb (11) 38.1 μg/m3 (36) 42.5 μg/m3 (119) 119.0
 
May 10, 2021, 5 p.m. N/A N/A N/A N/A N/A 25.0 ppb (36) 59.0 ppb (65) 1.0 ppb (12) 30.6 μg/m3 (29) 25.6 μg/m3 (80) 80.0
 
May 10, 2021, 4 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 44.0 ppb (41) 0.95 ppb (11) 14.3 μg/m3 (14) 21.8 μg/m3 (72) 72.0
 
May 10, 2021, 3 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 35.0 ppb (33) 0.89 ppb (11) 25.4 μg/m3 (24) 17.5 μg/m3 (63) 63.0
 
May 10, 2021, 2 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 20.0 ppb (19) 0.89 ppb (11) 25.2 μg/m3 (24) 17.7 μg/m3 (63) 63.0
 
May 10, 2021, 1 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 8.0 ppb (8) 0.87 ppb (11) 24.0 μg/m3 (23) 17.0 μg/m3 (62) 62.0
 
May 10, 2021, noon N/A N/A N/A N/A N/A 6.0 ppb (9) 17.0 ppb (16) 0.72 ppb (8) 18.3 μg/m3 (17) 15.1 μg/m3 (58) 58.0
 
May 10, 2021, 11 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 26.0 ppb (25) 0.68 ppb (8) 15.9 μg/m3 (15) 15.5 μg/m3 (59) 59.0
 
May 10, 2021, 10 a.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 25.0 ppb (24) 0.7 ppb (8) 27.4 μg/m3 (26) 13.5 μg/m3 (54) 54.0
 
May 10, 2021, 9 a.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 28.0 ppb (26) 0.71 ppb (8) 17.6 μg/m3 (17) 16.5 μg/m3 (61) 61.0
 
May 10, 2021, 8 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 33.0 ppb (31) 0.69 ppb (8) 17.6 μg/m3 (17) 12.2 μg/m3 (52) 52.0
 
May 10, 2021, 7 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 38.0 ppb (36) 0.68 ppb (8) 5.7 μg/m3 (6) 9.7 μg/m3 (41) 41.0
 
May 10, 2021, 6 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 40.0 ppb (38) 0.7 ppb (8) 19.3 μg/m3 (18) 18.4 μg/m3 (65) 65.0
 
May 10, 2021, 5 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 43.0 ppb (40) 0.74 ppb (8) 12.8 μg/m3 (12) 15.7 μg/m3 (59) 59.0
 
May 10, 2021, 4 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 41.0 ppb (38) 0.8 ppb (10) 33.0 μg/m3 (31) 19.0 μg/m3 (66) 66.0
 
May 10, 2021, 3 a.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 38.0 ppb (36) 0.96 ppb (12) 39.7 μg/m3 (37) 24.4 μg/m3 (77) 77.0
 
May 10, 2021, 2 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 42.0 ppb (39) 1.08 ppb (13) 73.0 μg/m3 (60) 22.8 μg/m3 (74) 74.0
 
May 10, 2021, 1 a.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 46.0 ppb (43) 0.98 ppb (12) 82.1 μg/m3 (65) 33.6 μg/m3 (97) 97.0
 
May 10, 2021, midnight N/A N/A N/A N/A N/A 6.0 ppb (9) 49.0 ppb (46) 0.87 ppb (11) 113.5 μg/m3 (80) 29.3 μg/m3 (88) 88.0
 
May 9, 2021, 11 p.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 64.0 ppb (81) 0.76 ppb (10) 69.0 μg/m3 (58) 20.7 μg/m3 (70) 81.0
 
May 9, 2021, 10 p.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 74.0 ppb (103) 0.72 ppb (8) 23.7 μg/m3 (22) 20.4 μg/m3 (69) 103.0
 
May 9, 2021, 9 p.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 70.0 ppb (100) 0.75 ppb (10) 29.4 μg/m3 (28) 19.7 μg/m3 (67) 100.0
 
May 9, 2021, 8 p.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 66.0 ppb (87) 0.76 ppb (10) 30.8 μg/m3 (29) 28.4 μg/m3 (86) 87.0
 
May 9, 2021, 7 p.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 60.0 ppb (68) 0.8 ppb (10) 47.3 μg/m3 (44) 33.1 μg/m3 (96) 96.0
 
May 9, 2021, 6 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 54.0 ppb (50) 0.82 ppb (10) 73.0 μg/m3 (60) 32.7 μg/m3 (95) 95.0
 
May 9, 2021, 5 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 48.0 ppb (45) 0.83 ppb (10) 42.3 μg/m3 (40) 42.3 μg/m3 (118) 118.0
 
May 9, 2021, 4 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 38.0 ppb (36) 0.91 ppb (11) 42.5 μg/m3 (40) 37.4 μg/m3 (106) 106.0
 
May 9, 2021, 3 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 29.0 ppb (27) 0.96 ppb (12) 42.3 μg/m3 (40) 31.5 μg/m3 (92) 92.0
 
May 9, 2021, 2 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 21.0 ppb (20) 0.91 ppb (11) 51.2 μg/m3 (48) 29.3 μg/m3 (88) 88.0
 
May 9, 2021, 1 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 17.0 ppb (16) 0.88 ppb (11) 55.6 μg/m3 (52) 27.1 μg/m3 (83) 83.0
 
May 9, 2021, noon N/A N/A N/A N/A N/A 6.0 ppb (9) 21.0 ppb (20) 0.8 ppb (10) 43.7 μg/m3 (41) 22.4 μg/m3 (73) 73.0
 
May 9, 2021, 11 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 28.0 ppb (26) 0.71 ppb (8) 42.4 μg/m3 (40) 33.4 μg/m3 (96) 96.0
 
May 9, 2021, 10 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 29.0 ppb (27) 0.71 ppb (8) 41.3 μg/m3 (39) 28.3 μg/m3 (86) 86.0
 
May 9, 2021, 9 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 32.0 ppb (30) 0.74 ppb (8) 49.2 μg/m3 (46) 35.4 μg/m3 (100) 100.0
 
May 9, 2021, 8 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 30.0 ppb (28) 0.76 ppb (10) 56.4 μg/m3 (52) 38.1 μg/m3 (108) 108.0
 
May 9, 2021, 7 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 33.0 ppb (31) 0.78 ppb (10) 65.3 μg/m3 (57) 33.9 μg/m3 (97) 97.0
 
May 9, 2021, 6 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 36.0 ppb (34) 0.8 ppb (10) 51.0 μg/m3 (48) 34.3 μg/m3 (98) 98.0
 
May 9, 2021, 5 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 40.0 ppb (38) 0.8 ppb (10) 48.1 μg/m3 (45) 18.7 μg/m3 (65) 65.0
 
May 9, 2021, 4 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 47.0 ppb (44) 0.79 ppb (10) 38.5 μg/m3 (36) 18.4 μg/m3 (65) 65.0
 
May 9, 2021, 3 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 47.0 ppb (44) 0.79 ppb (10) 46.1 μg/m3 (43) 16.4 μg/m3 (61) 61.0
 
May 9, 2021, 2 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 50.0 ppb (47) 0.76 ppb (10) 59.7 μg/m3 (54) 21.8 μg/m3 (72) 72.0
 
May 9, 2021, 1 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 55.0 ppb (51) 0.73 ppb (8) 59.5 μg/m3 (54) 16.1 μg/m3 (60) 60.0
 
May 9, 2021, midnight N/A N/A N/A N/A N/A 6.0 ppb (9) 62.0 ppb (74) 0.71 ppb (8) 63.0 μg/m3 (55) 20.4 μg/m3 (69) 74.0
 
May 8, 2021, 11 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 68.0 ppb (94) 0.71 ppb (8) 51.6 μg/m3 (48) 22.5 μg/m3 (73) 94.0
 
May 8, 2021, 10 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 73.0 ppb (103) 0.74 ppb (8) 31.5 μg/m3 (30) 24.9 μg/m3 (78) 103.0
 
May 8, 2021, 9 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 72.0 ppb (102) 0.78 ppb (10) 40.0 μg/m3 (38) 25.7 μg/m3 (80) 102.0
 
May 8, 2021, 8 p.m. N/A N/A N/A N/A N/A 10.0 ppb (15) 72.0 ppb (102) 0.73 ppb (8) 29.8 μg/m3 (28) 32.2 μg/m3 (94) 102.0
 
May 8, 2021, 7 p.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 64.0 ppb (81) 0.78 ppb (10) 38.3 μg/m3 (36) 37.0 μg/m3 (105) 105.0
 
May 8, 2021, 6 p.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 52.0 ppb (49) 0.84 ppb (10) 28.3 μg/m3 (27) 25.7 μg/m3 (80) 80.0
 
May 8, 2021, 5 p.m. N/A N/A N/A N/A N/A 11.0 ppb (16) 44.0 ppb (41) 0.85 ppb (10) 21.9 μg/m3 (21) 22.5 μg/m3 (73) 73.0
 
May 8, 2021, 4 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 34.0 ppb (32) 0.96 ppb (12) 32.0 μg/m3 (30) 16.6 μg/m3 (61) 61.0
 
May 8, 2021, 3 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 27.0 ppb (25) 0.92 ppb (11) 38.6 μg/m3 (36) 26.1 μg/m3 (81) 81.0
 
May 8, 2021, 2 p.m. N/A N/A N/A N/A N/A 27.0 ppb (39) 13.0 ppb (13) 1.0 ppb (12) 46.0 μg/m3 (43) 20.3 μg/m3 (69) 69.0
 
May 8, 2021, 1 p.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 14.0 ppb (13) 0.86 ppb (11) 37.3 μg/m3 (35) 14.4 μg/m3 (56) 56.0
 
May 8, 2021, noon N/A N/A N/A N/A N/A 5.0 ppb (8) 19.0 ppb (18) 0.74 ppb (8) 26.7 μg/m3 (25) 13.1 μg/m3 (54) 54.0
 
May 8, 2021, 11 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 26.0 ppb (25) 0.65 ppb (8) 22.6 μg/m3 (21) 18.3 μg/m3 (65) 65.0
 
May 8, 2021, 10 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 26.0 ppb (25) 0.63 ppb (7) 21.2 μg/m3 (20) 14.3 μg/m3 (56) 56.0
 
May 8, 2021, 9 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 27.0 ppb (25) 0.63 ppb (7) 27.2 μg/m3 (26) 13.6 μg/m3 (55) 55.0
 
May 8, 2021, 8 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 28.0 ppb (26) 0.63 ppb (7) 24.4 μg/m3 (23) 18.6 μg/m3 (65) 65.0
 
May 8, 2021, 7 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 27.0 ppb (25) 0.65 ppb (8) 30.7 μg/m3 (29) 11.5 μg/m3 (48) 48.0
 
May 8, 2021, 6 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 28.0 ppb (26) 0.66 ppb (8) 34.5 μg/m3 (32) 9.9 μg/m3 (42) 42.0
 
May 8, 2021, 5 a.m. N/A N/A N/A N/A N/A 11.0 ppb (16) 31.0 ppb (29) 0.68 ppb (8) 41.5 μg/m3 (39) 21.2 μg/m3 (71) 71.0
 
May 8, 2021, 4 a.m. N/A N/A N/A N/A N/A 41.0 ppb (58) 30.0 ppb (28) 0.73 ppb (8) 56.3 μg/m3 (52) 23.7 μg/m3 (76) 76.0
 
May 8, 2021, 3 a.m. N/A N/A N/A N/A N/A 39.0 ppb (55) 32.0 ppb (30) 0.78 ppb (10) 45.1 μg/m3 (42) 14.9 μg/m3 (57) 57.0
 
May 8, 2021, 2 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 35.0 ppb (33) 0.76 ppb (10) 52.3 μg/m3 (49) 18.0 μg/m3 (64) 64.0
 
May 8, 2021, 1 a.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 40.0 ppb (38) 0.82 ppb (10) 45.9 μg/m3 (43) 14.8 μg/m3 (57) 57.0
 
May 8, 2021, midnight N/A N/A N/A N/A N/A 6.0 ppb (9) 50.0 ppb (47) 0.85 ppb (10) 40.1 μg/m3 (38) 15.9 μg/m3 (59) 59.0
 
May 7, 2021, 11 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 54.0 ppb (50) 0.78 ppb (10) 46.0 μg/m3 (43) 12.6 μg/m3 (53) 53.0
 
May 7, 2021, 10 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 55.0 ppb (51) 0.81 ppb (10) 39.7 μg/m3 (37) 18.7 μg/m3 (65) 65.0
 
May 7, 2021, 9 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 53.0 ppb (50) 0.82 ppb (10) 7.2 μg/m3 (7) 27.2 μg/m3 (83) 83.0
 
May 7, 2021, 8 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 52.0 ppb (49) 0.8 ppb (10) 15.8 μg/m3 (15) 19.0 μg/m3 (66) 66.0
 
May 7, 2021, 7 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 51.0 ppb (48) 0.88 ppb (11) 37.5 μg/m3 (35) 19.3 μg/m3 (67) 67.0
 
May 7, 2021, 6 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 48.0 ppb (45) 0.87 ppb (11) 53.0 μg/m3 (50) 26.7 μg/m3 (82) 82.0
 
May 7, 2021, 5 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 42.0 ppb (39) 0.83 ppb (10) 48.9 μg/m3 (46) 23.2 μg/m3 (75) 75.0
 
May 7, 2021, 4 p.m. N/A N/A N/A N/A N/A 8.0 ppb (12) 37.0 ppb (35) 0.88 ppb (11) 35.6 μg/m3 (33) 24.1 μg/m3 (77) 77.0
 
May 7, 2021, 3 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 33.0 ppb (31) 0.92 ppb (11) 43.8 μg/m3 (41) 28.6 μg/m3 (86) 86.0
 
May 7, 2021, 2 p.m. N/A N/A N/A N/A N/A 9.0 ppb (13) 24.0 ppb (23) 0.95 ppb (11) 52.6 μg/m3 (49) 33.0 μg/m3 (95) 95.0
 
May 7, 2021, 1 p.m. N/A N/A N/A N/A N/A 18.0 ppb (26) 20.0 ppb (19) 0.92 ppb (11) 33.6 μg/m3 (32) 18.3 μg/m3 (65) 65.0
 
May 7, 2021, noon N/A N/A N/A N/A N/A 15.0 ppb (22) 23.0 ppb (22) 0.77 ppb (10) 27.5 μg/m3 (26) 25.4 μg/m3 (79) 79.0
 
May 7, 2021, 11 a.m. N/A N/A N/A N/A N/A 18.0 ppb (26) 26.0 ppb (25) 0.7 ppb (8) 26.2 μg/m3 (25) 18.3 μg/m3 (65) 65.0
 
May 7, 2021, 10 a.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 31.0 ppb (29) 0.72 ppb (8) 22.4 μg/m3 (21) 20.7 μg/m3 (70) 70.0
 
May 7, 2021, 9 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 36.0 ppb (34) 0.68 ppb (8) 28.7 μg/m3 (27) 18.3 μg/m3 (65) 65.0
 
May 7, 2021, 8 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 37.0 ppb (35) 0.65 ppb (8) 28.1 μg/m3 (27) 15.8 μg/m3 (59) 59.0
 
May 7, 2021, 7 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 39.0 ppb (37) 0.65 ppb (8) 37.1 μg/m3 (35) 20.5 μg/m3 (69) 69.0
 
May 7, 2021, 6 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 41.0 ppb (38) 0.65 ppb (8) 35.9 μg/m3 (34) 18.5 μg/m3 (65) 65.0
 
May 7, 2021, 5 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 42.0 ppb (39) 0.66 ppb (8) 47.6 μg/m3 (45) 17.7 μg/m3 (63) 63.0
 
May 7, 2021, 4 a.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 37.0 ppb (35) 0.73 ppb (8) 46.4 μg/m3 (43) 21.8 μg/m3 (72) 72.0
 
May 7, 2021, 3 a.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 31.0 ppb (29) 0.87 ppb (11) 55.7 μg/m3 (52) 21.3 μg/m3 (71) 71.0
 
May 7, 2021, 2 a.m. N/A N/A N/A N/A N/A 25.0 ppb (36) 37.0 ppb (35) 0.83 ppb (10) 54.4 μg/m3 (51) 27.2 μg/m3 (83) 83.0
 
May 7, 2021, 1 a.m. N/A N/A N/A N/A N/A 19.0 ppb (28) 44.0 ppb (41) 0.82 ppb (10) 64.4 μg/m3 (56) 26.0 μg/m3 (81) 81.0
 
May 7, 2021, midnight N/A N/A N/A N/A N/A 6.0 ppb (9) 59.0 ppb (65) 0.88 ppb (11) 85.3 μg/m3 (66) 18.5 μg/m3 (65) 66.0
 
May 6, 2021, 11 p.m. N/A N/A N/A N/A N/A 5.0 ppb (8) 59.0 ppb (65) 0.86 ppb (11) 44.1 μg/m3 (41) 14.5 μg/m3 (57) 65.0
 
May 6, 2021, 10 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 52.0 ppb (49) 0.82 ppb (10) 64.3 μg/m3 (56) 23.2 μg/m3 (75) 75.0
 
May 6, 2021, 9 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 63.0 ppb (78) 0.86 ppb (11) 43.8 μg/m3 (41) 14.4 μg/m3 (56) 78.0
 
May 6, 2021, 8 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 64.0 ppb (81) 0.9 ppb (11) 117.2 μg/m3 (82) 22.8 μg/m3 (74) 82.0
 
May 6, 2021, 7 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 61.0 ppb (71) 0.77 ppb (10) 103.9 μg/m3 (76) 27.4 μg/m3 (84) 84.0
 
May 6, 2021, 6 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 55.0 ppb (51) 0.92 ppb (11) 34.3 μg/m3 (32) 28.1 μg/m3 (85) 85.0
 
May 6, 2021, 5 p.m. N/A N/A N/A N/A N/A 8.0 ppb (12) 46.0 ppb (43) 0.97 ppb (12) 37.0 μg/m3 (35) 27.9 μg/m3 (85) 85.0
 
May 6, 2021, 4 p.m. N/A N/A N/A N/A N/A 8.0 ppb (12) 36.0 ppb (34) 0.99 ppb (12) 36.1 μg/m3 (34) 26.9 μg/m3 (83) 83.0
 
May 6, 2021, 3 p.m. N/A N/A N/A N/A N/A 10.0 ppb (15) 24.0 ppb (23) 1.01 ppb (12) 52.6 μg/m3 (49) 39.5 μg/m3 (111) 111.0
 
May 6, 2021, 2 p.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 7.0 ppb (7) 1.15 ppb (13) 65.8 μg/m3 (57) 34.7 μg/m3 (99) 99.0
 
May 6, 2021, 1 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) N/A 1.06 ppb (13) 44.3 μg/m3 (42) 31.6 μg/m3 (93) 93.0
 
May 6, 2021, noon N/A N/A N/A N/A N/A 8.0 ppb (12) 5.0 ppb (5) 0.86 ppb (11) 32.7 μg/m3 (31) 22.7 μg/m3 (74) 74.0
 
May 6, 2021, 11 a.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 11.0 ppb (11) 0.79 ppb (10) 40.9 μg/m3 (38) 42.2 μg/m3 (118) 118.0
 
May 6, 2021, 10 a.m. N/A N/A N/A N/A N/A 9.0 ppb (13) 29.0 ppb (27) 0.8 ppb (10) 47.1 μg/m3 (44) 31.7 μg/m3 (93) 93.0
 
May 6, 2021, 9 a.m. N/A N/A N/A N/A N/A 8.0 ppb (12) 22.0 ppb (21) 0.7 ppb (8) 26.1 μg/m3 (25) 24.4 μg/m3 (77) 77.0
 
May 6, 2021, 8 a.m. N/A N/A N/A N/A N/A 9.0 ppb (13) 24.0 ppb (23) 0.71 ppb (8) 31.3 μg/m3 (29) 36.0 μg/m3 (103) 103.0
 
May 6, 2021, 7 a.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 33.0 ppb (31) 0.73 ppb (8) 35.1 μg/m3 (33) 31.5 μg/m3 (92) 92.0
 
May 6, 2021, 6 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 28.0 ppb (26) 0.73 ppb (8) 21.0 μg/m3 (20) 24.4 μg/m3 (77) 77.0
 
May 6, 2021, 5 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 34.0 ppb (32) 0.72 ppb (8) 20.7 μg/m3 (20) 18.1 μg/m3 (64) 64.0
 
May 6, 2021, 4 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 38.0 ppb (36) 0.78 ppb (10) 48.5 μg/m3 (45) 22.5 μg/m3 (73) 73.0
 
May 6, 2021, 3 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 44.0 ppb (41) 0.81 ppb (10) 54.2 μg/m3 (51) 21.9 μg/m3 (72) 72.0
 
May 6, 2021, 2 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 45.0 ppb (42) 0.86 ppb (11) 139.7 μg/m3 (93) 31.5 μg/m3 (92) 93.0
 
May 6, 2021, 1 a.m. N/A N/A N/A N/A N/A 10.0 ppb (15) 48.0 ppb (45) 0.85 ppb (10) 147.9 μg/m3 (97) 26.3 μg/m3 (81) 97.0
 
May 6, 2021, midnight N/A N/A N/A N/A N/A 17.0 ppb (25) 53.0 ppb (50) 0.83 ppb (10) 127.1 μg/m3 (87) 19.3 μg/m3 (67) 87.0
 
May 5, 2021, 11 p.m. N/A N/A N/A N/A N/A 8.0 ppb (12) 78.0 ppb (105) 0.84 ppb (10) 74.0 μg/m3 (61) 36.6 μg/m3 (104) 105.0
 
May 5, 2021, 10 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 81.0 ppb (107) 0.82 ppb (10) 49.0 μg/m3 (46) 50.1 μg/m3 (137) 137.0
 
May 5, 2021, 9 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 77.0 ppb (105) 0.89 ppb (11) 41.6 μg/m3 (39) 32.7 μg/m3 (95) 105.0
 
May 5, 2021, 8 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 76.0 ppb (104) 0.93 ppb (11) 51.8 μg/m3 (48) 38.9 μg/m3 (110) 110.0
 
May 5, 2021, 7 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 71.0 ppb (101) 0.94 ppb (11) 59.8 μg/m3 (54) 36.0 μg/m3 (103) 103.0
 
May 5, 2021, 6 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 66.0 ppb (87) 0.99 ppb (12) 79.0 μg/m3 (63) 36.3 μg/m3 (103) 103.0
 
May 5, 2021, 5 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 59.0 ppb (65) 0.98 ppb (12) 95.4 μg/m3 (71) 38.7 μg/m3 (109) 109.0
 
May 5, 2021, 4 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 48.0 ppb (45) 1.01 ppb (12) 117.2 μg/m3 (82) 47.4 μg/m3 (131) 131.0
 
May 5, 2021, 3 p.m. N/A N/A N/A N/A N/A 8.0 ppb (12) 27.0 ppb (25) 1.04 ppb (12) 150.9 μg/m3 (99) 69.0 μg/m3 (158) 158.0
 
May 5, 2021, 2 p.m. N/A N/A N/A N/A N/A 9.0 ppb (13) 11.0 ppb (11) 1.17 ppb (14) 131.5 μg/m3 (89) 50.9 μg/m3 (139) 139.0
 
May 5, 2021, 1 p.m. N/A N/A N/A N/A N/A 8.0 ppb (12) 4.0 ppb (4) 1.15 ppb (13) 88.4 μg/m3 (68) 49.7 μg/m3 (136) 136.0
 
May 5, 2021, noon N/A N/A N/A N/A N/A 9.0 ppb (13) 16.0 ppb (15) 0.94 ppb (11) 78.0 μg/m3 (63) 35.4 μg/m3 (100) 100.0
 
May 5, 2021, 11 a.m. N/A N/A N/A N/A N/A 11.0 ppb (16) 17.0 ppb (16) 0.85 ppb (10) 76.0 μg/m3 (62) 34.8 μg/m3 (99) 99.0
 
May 5, 2021, 10 a.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 3.0 ppb (3) 0.83 ppb (10) 61.6 μg/m3 (55) 36.8 μg/m3 (105) 105.0
 
May 5, 2021, 9 a.m. N/A N/A N/A N/A N/A 10.0 ppb (15) 2.0 ppb (2) 0.77 ppb (10) 55.1 μg/m3 (52) 22.1 μg/m3 (73) 73.0
 
May 5, 2021, 8 a.m. N/A N/A N/A N/A N/A 23.0 ppb (33) 15.0 ppb (14) 0.69 ppb (8) 47.9 μg/m3 (45) 35.3 μg/m3 (100) 100.0
 
May 5, 2021, 7 a.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 20.0 ppb (19) 0.7 ppb (8) 63.4 μg/m3 (56) 29.8 μg/m3 (89) 89.0
 
May 5, 2021, 6 a.m. N/A N/A N/A N/A N/A 10.0 ppb (15) 24.0 ppb (23) 0.79 ppb (10) 81.7 μg/m3 (65) 33.1 μg/m3 (96) 96.0
 
May 5, 2021, 5 a.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 42.0 ppb (39) 0.72 ppb (8) 84.1 μg/m3 (66) 30.3 μg/m3 (90) 90.0
 
May 5, 2021, 4 a.m. N/A N/A N/A N/A N/A 9.0 ppb (13) 15.0 ppb (14) 1.19 ppb (14) 100.6 μg/m3 (74) 39.3 μg/m3 (111) 111.0