ID: 2550

AQSQID: 80011G008

Site Name: Estaci¢N Cruz Roja

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

Updated: March 3, 2021, 11:32 p.m.

Location: Salamanca (Ezequiel Ordóñez), MX

Reporting: True, Located: True

Current AQI: 78.0

Salamanca (Ezequiel Ordóñez) MX, MX: 20.578558, -101.19886

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Feb. 24, 2021, 10 p.m. N/A N/A N/A N/A N/A 18.0 ppb (26) 78.0 ppb (105) 0.32 ppb (4) 32.3 μg/m3 (30) N/A 105.0
 
Feb. 24, 2021, 9 p.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 72.0 ppb (102) 0.39 ppb (5) 32.8 μg/m3 (31) N/A 102.0
 
Feb. 24, 2021, 8 p.m. N/A N/A N/A N/A N/A 17.0 ppb (25) 63.0 ppb (78) 0.46 ppb (6) 35.5 μg/m3 (33) N/A 78.0
 
Feb. 24, 2021, 7 p.m. N/A N/A N/A N/A N/A 19.0 ppb (28) 62.0 ppb (74) 0.4 ppb (5) 36.5 μg/m3 (34) N/A 74.0
 
Feb. 24, 2021, 6 p.m. N/A N/A N/A N/A N/A 58.0 ppb (79) 58.0 ppb (61) 0.49 ppb (6) 47.4 μg/m3 (44) N/A 79.0
 
Feb. 24, 2021, 5 p.m. N/A N/A N/A N/A N/A 44.0 ppb (62) 36.0 ppb (34) 0.45 ppb (6) 53.7 μg/m3 (50) N/A 62.0
 
Feb. 24, 2021, 4 p.m. N/A N/A N/A N/A N/A 110.0 ppb (117) 28.0 ppb (26) 0.45 ppb (6) 62.1 μg/m3 (55) N/A 117.0
 
Feb. 24, 2021, 3 p.m. N/A N/A N/A N/A N/A 83.0 ppb (105) 15.0 ppb (14) 0.53 ppb (6) 62.7 μg/m3 (55) N/A 105.0
 
Feb. 24, 2021, 2 p.m. N/A N/A N/A N/A N/A 43.0 ppb (60) 12.0 ppb (12) 0.98 ppb (12) 57.4 μg/m3 (53) N/A 60.0
 
Feb. 24, 2021, 1 p.m. N/A N/A N/A N/A N/A 19.0 ppb (28) 1.0 ppb (1) 0.61 ppb (7) 39.7 μg/m3 (37) N/A 37.0
 
Feb. 24, 2021, noon N/A N/A N/A N/A N/A 29.0 ppb (42) 11.0 ppb (11) 0.31 ppb (4) 49.2 μg/m3 (46) N/A 46.0
 
Feb. 24, 2021, 11 a.m. N/A N/A N/A N/A N/A 38.0 ppb (54) 31.0 ppb (29) 0.32 ppb (4) 44.4 μg/m3 (42) N/A 54.0
 
Feb. 24, 2021, 10 a.m. N/A N/A N/A N/A N/A 60.0 ppb (82) 30.0 ppb (28) 0.27 ppb (4) 28.5 μg/m3 (27) N/A 82.0
 
Feb. 24, 2021, 9 a.m. N/A N/A N/A N/A N/A 147.0 ppb (133) 30.0 ppb (28) 0.25 ppb (3) 44.9 μg/m3 (42) N/A 133.0
 
Feb. 24, 2021, 8 a.m. N/A N/A N/A N/A N/A 108.0 ppb (116) 27.0 ppb (25) 0.23 ppb (3) 84.5 μg/m3 (66) N/A 116.0
 
Feb. 24, 2021, 7 a.m. N/A N/A N/A N/A N/A 187.0 ppb (152) 23.0 ppb (22) 0.23 ppb (3) 93.2 μg/m3 (70) N/A 152.0
 
Feb. 24, 2021, 6 a.m. N/A N/A N/A N/A N/A 124.0 ppb (123) 27.0 ppb (25) 0.2 ppb (3) 74.0 μg/m3 (61) N/A 123.0
 
Feb. 24, 2021, 5 a.m. N/A N/A N/A N/A N/A 60.0 ppb (82) 42.0 ppb (39) 0.25 ppb (3) 30.4 μg/m3 (29) N/A 82.0
 
Feb. 24, 2021, 4 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 46.0 ppb (43) 0.23 ppb (3) 36.9 μg/m3 (35) N/A 43.0
 
Feb. 24, 2021, 3 a.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 39.0 ppb (37) 0.43 ppb (5) 66.3 μg/m3 (57) N/A 57.0
 
Feb. 24, 2021, 2 a.m. N/A N/A N/A N/A N/A 15.0 ppb (22) 10.0 ppb (10) 1.73 ppb (20) 64.2 μg/m3 (56) N/A 56.0
 
Feb. 24, 2021, 1 a.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 44.0 ppb (41) 1.02 ppb (12) 47.6 μg/m3 (45) N/A 45.0
 
Feb. 24, 2021, midnight N/A N/A N/A N/A N/A 16.0 ppb (23) 62.0 ppb (74) 0.6 ppb (7) 47.4 μg/m3 (44) N/A 74.0
 
Feb. 23, 2021, 11 p.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 69.0 ppb (97) 0.48 ppb (6) 39.9 μg/m3 (37) N/A 97.0
 
Feb. 23, 2021, 10 p.m. N/A N/A N/A N/A N/A 17.0 ppb (25) 72.0 ppb (102) 0.4 ppb (5) 38.9 μg/m3 (37) N/A 102.0
 
Feb. 23, 2021, 9 p.m. N/A N/A N/A N/A N/A 19.0 ppb (28) 71.0 ppb (101) 0.53 ppb (6) 49.0 μg/m3 (46) N/A 101.0
 
Feb. 23, 2021, 8 p.m. N/A N/A N/A N/A N/A 21.0 ppb (30) 70.0 ppb (100) 0.62 ppb (7) 49.3 μg/m3 (46) N/A 100.0
 
Feb. 23, 2021, 7 p.m. N/A N/A N/A N/A N/A 26.0 ppb (38) 54.0 ppb (50) 0.44 ppb (5) 38.9 μg/m3 (37) N/A 50.0
 
Feb. 23, 2021, 6 p.m. N/A N/A N/A N/A N/A 21.0 ppb (30) 45.0 ppb (42) 0.37 ppb (5) 42.7 μg/m3 (40) N/A 42.0
 
Feb. 23, 2021, 5 p.m. N/A N/A N/A N/A N/A 102.0 ppb (113) 37.0 ppb (35) 0.32 ppb (4) 62.4 μg/m3 (55) N/A 113.0
 
Feb. 23, 2021, 4 p.m. N/A N/A N/A N/A N/A 117.0 ppb (120) 32.0 ppb (30) 0.32 ppb (4) 55.8 μg/m3 (52) N/A 120.0
 
Feb. 23, 2021, 3 p.m. N/A N/A N/A N/A N/A 107.0 ppb (115) 26.0 ppb (25) 0.28 ppb (4) 51.3 μg/m3 (48) N/A 115.0
 
Feb. 23, 2021, 2 p.m. N/A N/A N/A N/A N/A 102.0 ppb (113) 18.0 ppb (17) 0.42 ppb (5) 46.1 μg/m3 (43) N/A 113.0
 
Feb. 23, 2021, 1 p.m. N/A N/A N/A N/A N/A 90.0 ppb (108) 23.0 ppb (22) 0.28 ppb (4) 44.5 μg/m3 (42) N/A 108.0
 
Feb. 23, 2021, noon N/A N/A N/A N/A N/A 79.0 ppb (103) 29.0 ppb (27) 0.21 ppb (3) 37.1 μg/m3 (35) N/A 103.0
 
Feb. 23, 2021, 11 a.m. N/A N/A N/A N/A N/A 101.0 ppb (113) 29.0 ppb (27) 0.2 ppb (3) 49.2 μg/m3 (46) N/A 113.0
 
Feb. 23, 2021, 10 a.m. N/A N/A N/A N/A N/A 112.0 ppb (118) 30.0 ppb (28) 0.26 ppb (4) 39.4 μg/m3 (37) N/A 118.0
 
Feb. 23, 2021, 9 a.m. N/A N/A N/A N/A N/A 250.0 ppb (178) 37.0 ppb (35) 1.07 ppb (13) 26.9 μg/m3 (25) N/A 178.0
 
Feb. 23, 2021, 8 a.m. N/A N/A N/A N/A N/A 129.0 ppb (125) 38.0 ppb (36) 2.2 ppb (25) 37.5 μg/m3 (35) N/A 125.0
 
Feb. 23, 2021, 7 a.m. N/A N/A N/A N/A N/A 93.0 ppb (109) 37.0 ppb (35) 4.11 ppb (47) 38.4 μg/m3 (36) N/A 109.0
 
Feb. 23, 2021, 6 a.m. N/A N/A N/A N/A N/A 104.0 ppb (114) 40.0 ppb (38) 0.52 ppb (6) 37.1 μg/m3 (35) N/A 114.0
 
Feb. 23, 2021, 5 a.m. N/A N/A N/A N/A N/A 36.0 ppb (51) 42.0 ppb (39) 0.25 ppb (3) 41.7 μg/m3 (39) N/A 51.0
 
Feb. 23, 2021, 4 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 42.0 ppb (39) 0.28 ppb (4) 49.5 μg/m3 (46) N/A 46.0
 
Feb. 23, 2021, 3 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 42.0 ppb (39) 0.26 ppb (4) 64.6 μg/m3 (56) N/A 56.0
 
Feb. 23, 2021, 2 a.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 45.0 ppb (42) 0.36 ppb (5) 62.7 μg/m3 (55) N/A 55.0
 
Feb. 23, 2021, 1 a.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 58.0 ppb (61) 0.88 ppb (11) 51.5 μg/m3 (48) N/A 61.0
 
Feb. 23, 2021, midnight N/A N/A N/A N/A N/A 15.0 ppb (22) 79.0 ppb (106) 0.5 ppb (6) 47.2 μg/m3 (44) N/A 106.0
 
Feb. 22, 2021, 11 p.m. N/A N/A N/A N/A N/A 18.0 ppb (26) 82.0 ppb (107) 0.43 ppb (5) 49.2 μg/m3 (46) N/A 107.0
 
Feb. 22, 2021, 10 p.m. N/A N/A N/A N/A N/A 44.0 ppb (62) 80.0 ppb (106) 0.37 ppb (5) 50.0 μg/m3 (47) N/A 106.0
 
Feb. 22, 2021, 9 p.m. N/A N/A N/A N/A N/A 39.0 ppb (55) 69.0 ppb (97) 0.37 ppb (5) 33.1 μg/m3 (31) N/A 97.0
 
Feb. 22, 2021, 8 p.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 60.0 ppb (68) 0.45 ppb (6) 22.5 μg/m3 (21) N/A 68.0
 
Feb. 22, 2021, 7 p.m. N/A N/A N/A N/A N/A 29.0 ppb (42) 59.0 ppb (65) 0.36 ppb (5) 35.8 μg/m3 (34) N/A 65.0
 
Feb. 22, 2021, 6 p.m. N/A N/A N/A N/A N/A 89.0 ppb (107) 58.0 ppb (61) 0.71 ppb (8) 58.1 μg/m3 (53) N/A 107.0
 
Feb. 22, 2021, 5 p.m. N/A N/A N/A N/A N/A 127.0 ppb (124) 56.0 ppb (55) 1.0 ppb (12) 49.3 μg/m3 (46) N/A 124.0
 
Feb. 22, 2021, 4 p.m. N/A N/A N/A N/A N/A 34.0 ppb (49) 39.0 ppb (37) 0.72 ppb (8) 65.3 μg/m3 (57) N/A 57.0
 
Feb. 22, 2021, 3 p.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 12.0 ppb (12) 0.9 ppb (11) 114.1 μg/m3 (81) N/A 81.0
 
Feb. 22, 2021, 2 p.m. N/A N/A N/A N/A N/A 16.0 ppb (23) N/A 1.14 ppb (13) 93.6 μg/m3 (71) N/A 71.0
 
Feb. 22, 2021, 1 p.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 3.0 ppb (3) 0.79 ppb (10) 50.8 μg/m3 (48) N/A 48.0
 
Feb. 22, 2021, noon N/A N/A N/A N/A N/A 14.0 ppb (20) 6.0 ppb (6) 0.51 ppb (6) 47.5 μg/m3 (44) N/A 44.0
 
Feb. 22, 2021, 11 a.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 9.0 ppb (9) 0.39 ppb (5) 42.4 μg/m3 (40) N/A 40.0
 
Feb. 22, 2021, 10 a.m. N/A N/A N/A N/A N/A 15.0 ppb (22) 8.0 ppb (8) 0.38 ppb (5) 49.2 μg/m3 (46) N/A 46.0
 
Feb. 22, 2021, 9 a.m. N/A N/A N/A N/A N/A 15.0 ppb (22) 7.0 ppb (7) 0.41 ppb (5) 50.1 μg/m3 (47) N/A 47.0
 
Feb. 22, 2021, 8 a.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 11.0 ppb (11) 0.52 ppb (6) 55.7 μg/m3 (52) N/A 52.0
 
Feb. 22, 2021, 7 a.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 10.0 ppb (10) 0.81 ppb (10) 54.4 μg/m3 (51) N/A 51.0
 
Feb. 22, 2021, 6 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 15.0 ppb (14) 1.06 ppb (13) 47.4 μg/m3 (44) N/A 44.0
 
Feb. 22, 2021, 5 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 15.0 ppb (14) 1.61 ppb (19) 59.6 μg/m3 (54) N/A 54.0
 
Feb. 22, 2021, 4 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 24.0 ppb (23) 1.11 ppb (13) 59.1 μg/m3 (54) N/A 54.0
 
Feb. 22, 2021, 3 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 26.0 ppb (25) 1.1 ppb (13) 50.4 μg/m3 (47) N/A 47.0
 
Feb. 22, 2021, 2 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 38.0 ppb (36) 0.94 ppb (11) 43.1 μg/m3 (40) N/A 40.0
 
Feb. 22, 2021, 1 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 51.0 ppb (48) 0.86 ppb (11) 44.5 μg/m3 (42) N/A 48.0
 
Feb. 22, 2021, midnight N/A N/A N/A N/A N/A 14.0 ppb (20) 61.0 ppb (71) 0.78 ppb (10) 55.8 μg/m3 (52) N/A 71.0
 
Feb. 21, 2021, 11 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 64.0 ppb (81) 0.57 ppb (7) 37.3 μg/m3 (35) N/A 81.0
 
Feb. 21, 2021, 10 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 61.0 ppb (71) 0.64 ppb (7) 29.6 μg/m3 (28) N/A 71.0
 
Feb. 21, 2021, 9 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 54.0 ppb (50) 0.68 ppb (8) 28.0 μg/m3 (26) N/A 50.0
 
Feb. 21, 2021, 8 p.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 55.0 ppb (51) 0.57 ppb (7) 36.3 μg/m3 (34) N/A 51.0
 
Feb. 21, 2021, 7 p.m. N/A N/A N/A N/A N/A 21.0 ppb (30) 55.0 ppb (51) 0.58 ppb (7) 38.0 μg/m3 (36) N/A 51.0
 
Feb. 21, 2021, 6 p.m. N/A N/A N/A N/A N/A 30.0 ppb (43) 48.0 ppb (45) 0.7 ppb (8) 58.8 μg/m3 (53) N/A 53.0
 
Feb. 21, 2021, 5 p.m. N/A N/A N/A N/A N/A 93.0 ppb (109) 39.0 ppb (37) 0.78 ppb (10) 86.5 μg/m3 (67) N/A 109.0
 
Feb. 21, 2021, 4 p.m. N/A N/A N/A N/A N/A 112.0 ppb (118) 20.0 ppb (19) 0.74 ppb (8) 64.2 μg/m3 (56) N/A 118.0
 
Feb. 21, 2021, 3 p.m. N/A N/A N/A N/A N/A 48.0 ppb (67) 10.0 ppb (10) 0.91 ppb (11) 63.9 μg/m3 (56) N/A 67.0
 
Feb. 21, 2021, 2 p.m. N/A N/A N/A N/A N/A 26.0 ppb (38) 3.0 ppb (3) 1.37 ppb (16) 65.3 μg/m3 (57) N/A 57.0
 
Feb. 21, 2021, 1 p.m. N/A N/A N/A N/A N/A 23.0 ppb (33) 3.0 ppb (3) 0.69 ppb (8) 59.5 μg/m3 (54) N/A 54.0
 
Feb. 21, 2021, noon N/A N/A N/A N/A N/A 24.0 ppb (35) 3.0 ppb (3) 0.62 ppb (7) 49.0 μg/m3 (46) N/A 46.0
 
Feb. 21, 2021, 11 a.m. N/A N/A N/A N/A N/A 22.0 ppb (32) 8.0 ppb (8) 0.54 ppb (6) 56.7 μg/m3 (52) N/A 52.0
 
Feb. 21, 2021, 10 a.m. N/A N/A N/A N/A N/A 17.0 ppb (25) 8.0 ppb (8) 0.57 ppb (7) 57.3 μg/m3 (53) N/A 53.0
 
Feb. 21, 2021, 9 a.m. N/A N/A N/A N/A N/A 23.0 ppb (33) 8.0 ppb (8) 0.64 ppb (7) 60.8 μg/m3 (54) N/A 54.0
 
Feb. 21, 2021, 8 a.m. N/A N/A N/A N/A N/A 33.0 ppb (48) 6.0 ppb (6) 0.76 ppb (10) 95.9 μg/m3 (72) N/A 72.0
 
Feb. 21, 2021, 7 a.m. N/A N/A N/A N/A N/A 31.0 ppb (45) 2.0 ppb (2) N/A 104.8 μg/m3 (76) N/A 76.0
 
Feb. 21, 2021, 6 a.m. N/A N/A N/A N/A N/A 41.0 ppb (58) 3.0 ppb (3) 0.89 ppb (11) 92.6 μg/m3 (70) N/A 70.0
 
Feb. 21, 2021, 5 a.m. N/A N/A N/A N/A N/A 23.0 ppb (33) 3.0 ppb (3) 1.67 ppb (20) 108.3 μg/m3 (78) N/A 78.0
 
Feb. 21, 2021, 4 a.m. N/A N/A N/A N/A N/A 23.0 ppb (33) 3.0 ppb (3) 4.3 ppb (49) 108.7 μg/m3 (78) N/A 78.0
 
Feb. 21, 2021, 3 a.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 4.0 ppb (4) 4.19 ppb (48) 103.5 μg/m3 (76) N/A 76.0
 
Feb. 21, 2021, 2 a.m. N/A N/A N/A N/A N/A 17.0 ppb (25) 6.0 ppb (6) 3.59 ppb (41) 54.4 μg/m3 (51) N/A 51.0
 
Feb. 21, 2021, 1 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 36.0 ppb (34) 1.18 ppb (14) 45.2 μg/m3 (42) N/A 42.0
 
Feb. 21, 2021, midnight N/A N/A N/A N/A N/A 14.0 ppb (20) 62.0 ppb (74) 0.54 ppb (6) 33.9 μg/m3 (32) N/A 74.0
 
Feb. 20, 2021, 11 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 60.0 ppb (68) 0.51 ppb (6) 33.6 μg/m3 (32) N/A 68.0
 
Feb. 20, 2021, 10 p.m. N/A N/A N/A N/A N/A 18.0 ppb (26) 62.0 ppb (74) 0.56 ppb (7) 35.6 μg/m3 (33) N/A 74.0
 
Feb. 20, 2021, 9 p.m. N/A N/A N/A N/A N/A 30.0 ppb (43) 61.0 ppb (71) 0.63 ppb (7) 36.7 μg/m3 (34) N/A 71.0
 
Feb. 20, 2021, 8 p.m. N/A N/A N/A N/A N/A 93.0 ppb (109) 62.0 ppb (74) 0.74 ppb (8) 64.7 μg/m3 (56) N/A 109.0
 
Feb. 20, 2021, 7 p.m. N/A N/A N/A N/A N/A 108.0 ppb (116) 49.0 ppb (46) N/A 58.3 μg/m3 (53) N/A 116.0
 
Feb. 20, 2021, 6 p.m. N/A N/A N/A N/A N/A 138.0 ppb (129) 34.0 ppb (32) 0.43 ppb (5) 74.3 μg/m3 (61) N/A 129.0
 
Feb. 20, 2021, 5 p.m. N/A N/A N/A N/A N/A 191.0 ppb (154) 24.0 ppb (23) 0.51 ppb (6) 76.1 μg/m3 (62) N/A 154.0
 
Feb. 20, 2021, 4 p.m. N/A N/A N/A N/A N/A 160.0 ppb (139) 24.0 ppb (23) N/A 48.0 μg/m3 (45) N/A 139.0
 
Feb. 20, 2021, 3 p.m. N/A N/A N/A N/A N/A 92.0 ppb (109) 18.0 ppb (17) 0.33 ppb (4) 32.4 μg/m3 (30) N/A 109.0
 
Feb. 20, 2021, 2 p.m. N/A N/A N/A N/A N/A 70.0 ppb (94) 14.0 ppb (13) 0.3 ppb (4) 29.8 μg/m3 (28) N/A 94.0
 
Feb. 20, 2021, 1 p.m. N/A N/A N/A N/A N/A 65.0 ppb (88) 13.0 ppb (13) 0.28 ppb (4) 31.8 μg/m3 (30) N/A 88.0
 
Feb. 20, 2021, noon N/A N/A N/A N/A N/A 160.0 ppb (139) 18.0 ppb (17) 0.3 ppb (4) 40.6 μg/m3 (38) N/A 139.0
 
Feb. 20, 2021, 11 a.m. N/A N/A N/A N/A N/A 90.0 ppb (108) 22.0 ppb (21) 0.26 ppb (4) 30.9 μg/m3 (29) N/A 108.0
 
Feb. 20, 2021, 10 a.m. N/A N/A N/A N/A N/A 98.0 ppb (111) 15.0 ppb (14) 0.29 ppb (4) 33.9 μg/m3 (32) N/A 111.0
 
Feb. 20, 2021, 9 a.m. N/A N/A N/A N/A N/A 150.0 ppb (135) 21.0 ppb (20) 0.36 ppb (5) 57.7 μg/m3 (53) N/A 135.0
 
Feb. 20, 2021, 8 a.m. N/A N/A N/A N/A N/A 150.0 ppb (135) 21.0 ppb (20) 0.24 ppb (3) 62.2 μg/m3 (55) N/A 135.0
 
Feb. 20, 2021, 7 a.m. N/A N/A N/A N/A N/A 177.0 ppb (147) 20.0 ppb (19) 0.25 ppb (3) 76.9 μg/m3 (62) N/A 147.0
 
Feb. 20, 2021, 6 a.m. N/A N/A N/A N/A N/A 150.0 ppb (135) 20.0 ppb (19) 0.23 ppb (3) 114.5 μg/m3 (81) N/A 135.0
 
Feb. 20, 2021, 5 a.m. N/A N/A N/A N/A N/A 166.0 ppb (142) 20.0 ppb (19) 0.25 ppb (3) 75.4 μg/m3 (62) N/A 142.0
 
Feb. 20, 2021, 4 a.m. N/A N/A N/A N/A N/A 150.0 ppb (135) 23.0 ppb (22) 1.2 ppb (14) 40.1 μg/m3 (38) N/A 135.0
 
Feb. 20, 2021, 3 a.m. N/A N/A N/A N/A N/A 30.0 ppb (43) 31.0 ppb (29) 0.38 ppb (5) 37.5 μg/m3 (35) N/A 43.0
 
Feb. 20, 2021, 2 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 32.0 ppb (30) 0.35 ppb (4) 34.1 μg/m3 (32) N/A 32.0
 
Feb. 20, 2021, 1 a.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 42.0 ppb (39) 0.32 ppb (4) 32.6 μg/m3 (31) N/A 39.0
 
Feb. 20, 2021, midnight N/A N/A N/A N/A N/A 38.0 ppb (54) 47.0 ppb (44) 0.34 ppb (4) 44.3 μg/m3 (42) N/A 54.0
 
Feb. 19, 2021, 11 p.m. N/A N/A N/A N/A N/A 88.0 ppb (107) 39.0 ppb (37) 0.35 ppb (4) 41.2 μg/m3 (39) N/A 107.0
 
Feb. 19, 2021, 10 p.m. N/A N/A N/A N/A N/A 102.0 ppb (113) 40.0 ppb (38) 0.35 ppb (4) 50.0 μg/m3 (47) N/A 113.0
 
Feb. 19, 2021, 9 p.m. N/A N/A N/A N/A N/A 104.0 ppb (114) 45.0 ppb (42) 0.31 ppb (4) 42.0 μg/m3 (39) N/A 114.0
 
Feb. 19, 2021, 8 p.m. N/A N/A N/A N/A N/A 83.0 ppb (105) 43.0 ppb (40) 0.31 ppb (4) 52.2 μg/m3 (49) N/A 105.0
 
Feb. 19, 2021, 7 p.m. N/A N/A N/A N/A N/A 115.0 ppb (119) 39.0 ppb (37) 0.32 ppb (4) 47.6 μg/m3 (45) N/A 119.0
 
Feb. 19, 2021, 6 p.m. N/A N/A N/A N/A N/A 66.0 ppb (89) 35.0 ppb (33) 0.27 ppb (4) 44.9 μg/m3 (42) N/A 89.0
 
Feb. 19, 2021, 5 p.m. N/A N/A N/A N/A N/A 95.0 ppb (110) 30.0 ppb (28) 0.29 ppb (4) 50.0 μg/m3 (47) N/A 110.0
 
Feb. 19, 2021, 4 p.m. N/A N/A N/A N/A N/A 75.0 ppb (100) 28.0 ppb (26) 0.27 ppb (4) 32.8 μg/m3 (31) N/A 100.0
 
Feb. 19, 2021, 3 p.m. N/A N/A N/A N/A N/A 61.0 ppb (83) 23.0 ppb (22) 0.26 ppb (4) 36.6 μg/m3 (34) N/A 83.0
 
Feb. 19, 2021, 2 p.m. N/A N/A N/A N/A N/A 146.0 ppb (133) 18.0 ppb (17) 0.34 ppb (4) 42.5 μg/m3 (40) N/A 133.0
 
Feb. 19, 2021, 1 p.m. N/A N/A N/A N/A N/A 136.0 ppb (128) 16.0 ppb (15) 0.25 ppb (3) 77.5 μg/m3 (63) N/A 128.0
 
Feb. 19, 2021, noon N/A N/A N/A N/A N/A 130.0 ppb (126) 18.0 ppb (17) 0.26 ppb (4) 79.3 μg/m3 (64) N/A 126.0
 
Feb. 19, 2021, 11 a.m. N/A N/A N/A N/A N/A 149.0 ppb (134) 14.0 ppb (13) 0.29 ppb (4) 83.4 μg/m3 (66) N/A 134.0
 
Feb. 19, 2021, 10 a.m. N/A N/A N/A N/A N/A 124.0 ppb (123) 10.0 ppb (10) 0.36 ppb (5) 62.9 μg/m3 (55) N/A 123.0
 
Feb. 19, 2021, 9 a.m. N/A N/A N/A N/A N/A 18.0 ppb (26) 4.0 ppb (4) 0.73 ppb (8) 49.4 μg/m3 (46) N/A 46.0
 
Feb. 19, 2021, 8 a.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 5.0 ppb (5) 0.7 ppb (8) 51.3 μg/m3 (48) N/A 48.0
 
Feb. 19, 2021, 7 a.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 7.0 ppb (7) 1.04 ppb (12) 50.9 μg/m3 (48) N/A 48.0
 
Feb. 19, 2021, 6 a.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 7.0 ppb (7) 1.1 ppb (13) 50.0 μg/m3 (47) N/A 47.0
 
Feb. 19, 2021, 5 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 13.0 ppb (13) 1.31 ppb (15) 47.4 μg/m3 (44) N/A 44.0
 
Feb. 19, 2021, 4 a.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 17.0 ppb (16) 0.65 ppb (8) 38.4 μg/m3 (36) N/A 36.0
 
Feb. 19, 2021, 3 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 17.0 ppb (16) 0.76 ppb (10) 37.2 μg/m3 (35) N/A 35.0
 
Feb. 19, 2021, 2 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 19.0 ppb (18) 0.86 ppb (11) 34.3 μg/m3 (32) N/A 32.0
 
Feb. 19, 2021, 1 a.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 28.0 ppb (26) 0.75 ppb (10) 21.7 μg/m3 (21) N/A 26.0
 
Feb. 19, 2021, midnight N/A N/A N/A N/A N/A 12.0 ppb (18) 38.0 ppb (36) 0.48 ppb (6) 25.1 μg/m3 (24) N/A 36.0
 
Feb. 18, 2021, 11 p.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 41.0 ppb (38) 0.43 ppb (5) 19.4 μg/m3 (18) N/A 38.0
 
Feb. 18, 2021, 10 p.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 39.0 ppb (37) 0.43 ppb (5) 15.1 μg/m3 (14) N/A 37.0
 
Feb. 18, 2021, 9 p.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 39.0 ppb (37) 0.43 ppb (5) 15.7 μg/m3 (15) N/A 37.0
 
Feb. 18, 2021, 8 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 44.0 ppb (41) 0.46 ppb (6) 17.4 μg/m3 (17) N/A 41.0
 
Feb. 18, 2021, 7 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 44.0 ppb (41) 0.47 ppb (6) 20.8 μg/m3 (20) N/A 41.0
 
Feb. 18, 2021, 6 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 40.0 ppb (38) 0.49 ppb (6) 27.4 μg/m3 (26) N/A 38.0
 
Feb. 18, 2021, 5 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 35.0 ppb (33) 0.59 ppb (7) 48.0 μg/m3 (45) N/A 45.0
 
Feb. 18, 2021, 4 p.m. N/A N/A N/A N/A N/A 24.0 ppb (35) 17.0 ppb (16) 1.09 ppb (13) 85.2 μg/m3 (66) N/A 66.0
 
Feb. 18, 2021, 3 p.m. N/A N/A N/A N/A N/A 23.0 ppb (33) 9.0 ppb (9) 1.77 ppb (21) 64.6 μg/m3 (56) N/A 56.0
 
Feb. 18, 2021, 2 p.m. N/A N/A N/A N/A N/A 17.0 ppb (25) 8.0 ppb (8) 1.26 ppb (15) 53.4 μg/m3 (50) N/A 50.0
 
Feb. 18, 2021, 1 p.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 8.0 ppb (8) 0.62 ppb (7) 36.7 μg/m3 (34) N/A 34.0
 
Feb. 18, 2021, noon N/A N/A N/A N/A N/A 14.0 ppb (20) 10.0 ppb (10) 0.3 ppb (4) 24.5 μg/m3 (23) N/A 23.0
 
Feb. 18, 2021, 11 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 11.0 ppb (11) 0.29 ppb (4) 26.3 μg/m3 (25) N/A 25.0
 
Feb. 18, 2021, 10 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 19.0 ppb (18) 0.28 ppb (4) 22.8 μg/m3 (22) N/A 22.0
 
Feb. 18, 2021, 9 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 16.0 ppb (15) 0.32 ppb (4) 29.7 μg/m3 (28) N/A 28.0
 
Feb. 18, 2021, 8 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 17.0 ppb (16) 0.34 ppb (4) 30.8 μg/m3 (29) N/A 29.0
 
Feb. 18, 2021, 7 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 16.0 ppb (15) 0.33 ppb (4) 44.0 μg/m3 (41) N/A 41.0
 
Feb. 18, 2021, 6 a.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 24.0 ppb (23) 0.38 ppb (5) 42.6 μg/m3 (40) N/A 40.0
 
Feb. 18, 2021, 5 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 12.0 ppb (12) 0.61 ppb (7) 51.8 μg/m3 (48) N/A 48.0
 
Feb. 18, 2021, 4 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 18.0 ppb (17) 0.52 ppb (6) 38.5 μg/m3 (36) N/A 36.0
 
Feb. 18, 2021, 3 a.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 27.0 ppb (25) 0.58 ppb (7) 47.1 μg/m3 (44) N/A 44.0
 
Feb. 18, 2021, 2 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 23.0 ppb (22) 0.73 ppb (8) N/A N/A 22.0
 
Feb. 18, 2021, 1 a.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 30.0 ppb (28) 0.61 ppb (7) N/A N/A 28.0
 
Feb. 18, 2021, midnight N/A N/A N/A N/A N/A 12.0 ppb (18) 38.0 ppb (36) 0.42 ppb (5) 34.5 μg/m3 (32) N/A 36.0
 
Feb. 17, 2021, 11 p.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 42.0 ppb (39) 0.39 ppb (5) 30.9 μg/m3 (29) N/A 39.0