ID: 2550

AQSQID: 80011G008

Site Name: Estaci¢N Cruz Roja

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

Updated: April 22, 2021, 10:44 a.m.

Location: Salamanca (Ezequiel Ordóñez), MX

Reporting: True, Located: True

Current AQI: 42.0

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
April 22, 2021, 9 a.m. N/A N/A N/A N/A N/A 21.0 ppb (30) 20.0 ppb (19) 0.25 ppb (3) 45.2 μg/m3 (42) N/A 42.0
 
April 22, 2021, 8 a.m. N/A N/A N/A N/A N/A 43.0 ppb (60) 21.0 ppb (20) 0.25 ppb (3) 46.8 μg/m3 (44) N/A 60.0
 
April 22, 2021, 7 a.m. N/A N/A N/A N/A N/A 45.0 ppb (63) 25.0 ppb (24) 0.27 ppb (4) 54.5 μg/m3 (51) N/A 63.0
 
April 22, 2021, 6 a.m. N/A N/A N/A N/A N/A 29.0 ppb (42) 28.0 ppb (26) 0.3 ppb (4) 71.2 μg/m3 (60) N/A 60.0
 
April 22, 2021, 5 a.m. N/A N/A N/A N/A N/A 19.0 ppb (28) 32.0 ppb (30) 0.42 ppb (5) 64.3 μg/m3 (56) N/A 56.0
 
April 22, 2021, 4 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 37.0 ppb (35) 0.61 ppb (7) 58.6 μg/m3 (53) N/A 53.0
 
April 22, 2021, 3 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 36.0 ppb (34) 0.81 ppb (10) 74.5 μg/m3 (61) N/A 61.0
 
April 22, 2021, 2 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) N/A 1.17 ppb (14) 60.0 μg/m3 (54) N/A 54.0
 
April 22, 2021, 1 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 73.0 ppb (103) 0.48 ppb (6) 50.0 μg/m3 (47) N/A 103.0
 
April 22, 2021, midnight N/A N/A N/A N/A N/A 13.0 ppb (19) 72.0 ppb (102) 0.53 ppb (6) 45.1 μg/m3 (42) N/A 102.0
 
April 21, 2021, 11 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 76.0 ppb (104) 0.45 ppb (6) 36.9 μg/m3 (35) N/A 104.0
 
April 21, 2021, 10 p.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 76.0 ppb (104) 0.39 ppb (5) 35.0 μg/m3 (33) N/A 104.0
 
April 21, 2021, 9 p.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 74.0 ppb (103) 0.3 ppb (4) 33.9 μg/m3 (32) N/A 103.0
 
April 21, 2021, 8 p.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 62.0 ppb (74) 0.47 ppb (6) 38.4 μg/m3 (36) N/A 74.0
 
April 21, 2021, 7 p.m. N/A N/A N/A N/A N/A 27.0 ppb (39) 59.0 ppb (65) 0.41 ppb (5) 39.5 μg/m3 (37) N/A 65.0
 
April 21, 2021, 6 p.m. N/A N/A N/A N/A N/A 29.0 ppb (42) 55.0 ppb (51) 0.36 ppb (5) 36.6 μg/m3 (34) N/A 51.0
 
April 21, 2021, 5 p.m. N/A N/A N/A N/A N/A 22.0 ppb (32) 46.0 ppb (43) 0.36 ppb (5) 39.1 μg/m3 (37) N/A 43.0
 
April 21, 2021, 4 p.m. N/A N/A N/A N/A N/A 39.0 ppb (55) 39.0 ppb (37) 0.32 ppb (4) 50.0 μg/m3 (47) N/A 55.0
 
April 21, 2021, 3 p.m. N/A N/A N/A N/A N/A 50.0 ppb (69) 27.0 ppb (25) 0.38 ppb (5) 66.8 μg/m3 (57) N/A 69.0
 
April 21, 2021, 2 p.m. N/A N/A N/A N/A N/A 39.0 ppb (55) 11.0 ppb (11) 0.5 ppb (6) 57.7 μg/m3 (53) N/A 55.0
 
April 21, 2021, 1 p.m. N/A N/A N/A N/A N/A 32.0 ppb (46) 5.0 ppb (5) 0.61 ppb (7) 54.8 μg/m3 (51) N/A 51.0
 
April 21, 2021, noon N/A N/A N/A N/A N/A 34.0 ppb (49) 5.0 ppb (5) 0.54 ppb (6) 55.7 μg/m3 (52) N/A 52.0
 
April 21, 2021, 11 a.m. N/A N/A N/A N/A N/A 28.0 ppb (40) 31.0 ppb (29) 0.48 ppb (6) 64.0 μg/m3 (56) N/A 56.0
 
April 21, 2021, 10 a.m. N/A N/A N/A N/A N/A 26.0 ppb (38) 57.0 ppb (58) 0.38 ppb (5) 57.4 μg/m3 (53) N/A 58.0
 
April 21, 2021, 9 a.m. N/A N/A N/A N/A N/A 24.0 ppb (35) 47.0 ppb (44) 0.41 ppb (5) 70.8 μg/m3 (59) N/A 59.0
 
April 21, 2021, 8 a.m. N/A N/A N/A N/A N/A 26.0 ppb (38) 12.0 ppb (12) 0.42 ppb (5) 61.8 μg/m3 (55) N/A 55.0
 
April 21, 2021, 7 a.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 22.0 ppb (21) 0.42 ppb (5) 57.5 μg/m3 (53) N/A 53.0
 
April 21, 2021, 6 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 26.0 ppb (25) 0.37 ppb (5) 62.1 μg/m3 (55) N/A 55.0
 
April 21, 2021, 5 a.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 30.0 ppb (28) 0.42 ppb (5) 51.7 μg/m3 (48) N/A 48.0
 
April 21, 2021, 4 a.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 33.0 ppb (31) 0.47 ppb (6) 63.2 μg/m3 (56) N/A 56.0
 
April 21, 2021, 3 a.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 19.0 ppb (18) 0.72 ppb (8) 52.6 μg/m3 (49) N/A 49.0
 
April 21, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 41.8 μg/m3 (39) N/A 39.0
 
April 21, 2021, 1 a.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 39.0 ppb (37) 0.53 ppb (6) 37.9 μg/m3 (36) N/A 37.0
 
April 21, 2021, midnight N/A N/A N/A N/A N/A 12.0 ppb (18) 45.0 ppb (42) 0.49 ppb (6) 30.8 μg/m3 (29) N/A 42.0
 
April 20, 2021, 11 p.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 46.0 ppb (43) 0.37 ppb (5) 23.5 μg/m3 (22) N/A 43.0
 
April 20, 2021, 10 p.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 58.0 ppb (61) 0.29 ppb (4) 20.2 μg/m3 (19) N/A 61.0
 
April 20, 2021, 9 p.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 48.0 ppb (45) 0.35 ppb (4) 15.3 μg/m3 (15) N/A 45.0
 
April 20, 2021, 8 p.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 53.0 ppb (50) 0.33 ppb (4) 15.8 μg/m3 (15) N/A 50.0
 
April 20, 2021, 7 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 50.0 ppb (47) 0.38 ppb (5) 27.7 μg/m3 (26) N/A 47.0
 
April 20, 2021, 6 p.m. N/A N/A N/A N/A N/A 15.0 ppb (22) 50.0 ppb (47) 0.38 ppb (5) 20.5 μg/m3 (19) N/A 47.0
 
April 20, 2021, 5 p.m. N/A N/A N/A N/A N/A 22.0 ppb (32) 52.0 ppb (49) 0.41 ppb (5) 44.0 μg/m3 (41) N/A 49.0
 
April 20, 2021, 4 p.m. N/A N/A N/A N/A N/A 19.0 ppb (28) 39.0 ppb (37) 0.63 ppb (7) 69.7 μg/m3 (59) N/A 59.0
 
April 20, 2021, 3 p.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 14.0 ppb (13) 1.36 ppb (16) 109.2 μg/m3 (78) N/A 78.0
 
April 20, 2021, 2 p.m. N/A N/A N/A N/A N/A 24.0 ppb (35) 7.0 ppb (7) 2.02 ppb (23) 98.7 μg/m3 (73) N/A 73.0
 
April 20, 2021, 1 p.m. N/A N/A N/A N/A N/A 19.0 ppb (28) 6.0 ppb (6) 1.76 ppb (21) 70.0 μg/m3 (59) N/A 59.0
 
April 20, 2021, noon N/A N/A N/A N/A N/A 14.0 ppb (20) 8.0 ppb (8) 0.98 ppb (12) 56.7 μg/m3 (52) N/A 52.0
 
April 20, 2021, 11 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 9.0 ppb (9) 0.62 ppb (7) 57.7 μg/m3 (53) N/A 53.0
 
April 20, 2021, 10 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 12.0 ppb (12) 0.55 ppb (7) 56.9 μg/m3 (52) N/A 52.0
 
April 20, 2021, 9 a.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 18.0 ppb (17) 0.6 ppb (7) 67.2 μg/m3 (58) N/A 58.0
 
April 20, 2021, 8 a.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 29.0 ppb (27) 0.67 ppb (8) 68.1 μg/m3 (58) N/A 58.0
 
April 20, 2021, 7 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 19.0 ppb (18) 0.62 ppb (7) 68.3 μg/m3 (58) N/A 58.0
 
April 20, 2021, 6 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 22.0 ppb (21) 0.53 ppb (6) 63.7 μg/m3 (56) N/A 56.0
 
April 20, 2021, 5 a.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 29.0 ppb (27) 0.49 ppb (6) 60.9 μg/m3 (54) N/A 54.0
 
April 20, 2021, 4 a.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 35.0 ppb (33) 0.41 ppb (5) 45.4 μg/m3 (43) N/A 43.0
 
April 20, 2021, 3 a.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 38.0 ppb (36) 0.38 ppb (5) 41.8 μg/m3 (39) N/A 39.0
 
April 20, 2021, 2 a.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 37.0 ppb (35) 0.44 ppb (5) 52.1 μg/m3 (49) N/A 49.0
 
April 20, 2021, 1 a.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 45.0 ppb (42) 0.4 ppb (5) 38.2 μg/m3 (36) N/A 42.0
 
April 20, 2021, midnight N/A N/A N/A N/A N/A 12.0 ppb (18) 48.0 ppb (45) 0.35 ppb (4) 38.2 μg/m3 (36) N/A 45.0
 
April 19, 2021, 11 p.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 48.0 ppb (45) 0.32 ppb (4) 36.1 μg/m3 (34) N/A 45.0
 
April 19, 2021, 10 p.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 49.0 ppb (46) 0.32 ppb (4) 43.4 μg/m3 (41) N/A 46.0
 
April 19, 2021, 9 p.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 49.0 ppb (46) 0.33 ppb (4) 44.5 μg/m3 (42) N/A 46.0
 
April 19, 2021, 8 p.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 44.0 ppb (41) 0.31 ppb (4) 29.0 μg/m3 (27) N/A 41.0
 
April 19, 2021, 7 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 50.0 ppb (47) 0.37 ppb (5) 41.0 μg/m3 (38) N/A 47.0
 
April 19, 2021, 6 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 56.0 ppb (55) 0.36 ppb (5) 38.4 μg/m3 (36) N/A 55.0
 
April 19, 2021, 5 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 54.0 ppb (50) 0.43 ppb (5) 42.8 μg/m3 (40) N/A 50.0
 
April 19, 2021, 4 p.m. N/A N/A N/A N/A N/A 15.0 ppb (22) 34.0 ppb (32) 0.71 ppb (8) 90.5 μg/m3 (69) N/A 69.0
 
April 19, 2021, 3 p.m. N/A N/A N/A N/A N/A 23.0 ppb (33) 16.0 ppb (15) 1.12 ppb (13) 97.6 μg/m3 (73) N/A 73.0
 
April 19, 2021, 2 p.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 7.0 ppb (7) 1.56 ppb (19) 119.5 μg/m3 (83) N/A 83.0
 
April 19, 2021, 1 p.m. N/A N/A N/A N/A N/A 15.0 ppb (22) 8.0 ppb (8) 1.31 ppb (15) 63.9 μg/m3 (56) N/A 56.0
 
April 19, 2021, noon N/A N/A N/A N/A N/A 15.0 ppb (22) 10.0 ppb (10) 0.87 ppb (11) 58.9 μg/m3 (53) N/A 53.0
 
April 19, 2021, 11 a.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 15.0 ppb (14) 0.51 ppb (6) 61.3 μg/m3 (55) N/A 55.0
 
April 19, 2021, 10 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 12.0 ppb (12) 0.51 ppb (6) 56.0 μg/m3 (52) N/A 52.0
 
April 19, 2021, 9 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 14.0 ppb (13) 0.48 ppb (6) 59.2 μg/m3 (54) N/A 54.0
 
April 19, 2021, 8 a.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 18.0 ppb (17) 0.45 ppb (6) 53.0 μg/m3 (50) N/A 50.0
 
April 19, 2021, 7 a.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 24.0 ppb (23) 0.41 ppb (5) 63.6 μg/m3 (56) N/A 56.0
 
April 19, 2021, 6 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 30.0 ppb (28) 0.48 ppb (6) 50.6 μg/m3 (47) N/A 47.0
 
April 19, 2021, 5 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 26.0 ppb (25) 0.51 ppb (6) 38.8 μg/m3 (36) N/A 36.0
 
April 19, 2021, 4 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 30.0 ppb (28) 0.43 ppb (5) 41.9 μg/m3 (39) N/A 39.0
 
April 19, 2021, 3 a.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 25.0 ppb (24) 0.69 ppb (8) 45.2 μg/m3 (42) N/A 42.0
 
April 19, 2021, 2 a.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 21.0 ppb (20) 0.67 ppb (8) 30.8 μg/m3 (29) N/A 29.0
 
April 19, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 22.1 μg/m3 (21) N/A 35.0
 
April 19, 2021, midnight N/A N/A N/A N/A N/A 11.0 ppb (16) 45.0 ppb (42) 0.26 ppb (4) 18.3 μg/m3 (17) N/A 42.0
 
April 18, 2021, 11 p.m. N/A N/A N/A N/A N/A 11.0 ppb (16) 47.0 ppb (44) 0.28 ppb (4) 14.0 μg/m3 (13) N/A 44.0
 
April 18, 2021, 10 p.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 46.0 ppb (43) 0.3 ppb (4) 28.6 μg/m3 (27) N/A 43.0
 
April 18, 2021, 9 p.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 47.0 ppb (44) 0.37 ppb (5) 25.6 μg/m3 (24) N/A 44.0
 
April 18, 2021, 8 p.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 52.0 ppb (49) 0.38 ppb (5) 28.5 μg/m3 (27) N/A 49.0
 
April 18, 2021, 7 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 59.0 ppb (65) 0.43 ppb (5) 38.7 μg/m3 (36) N/A 65.0
 
April 18, 2021, 6 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 54.0 ppb (50) 0.41 ppb (5) 39.0 μg/m3 (37) N/A 50.0
 
April 18, 2021, 5 p.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 60.0 ppb (68) 0.46 ppb (6) 49.1 μg/m3 (46) N/A 68.0
 
April 18, 2021, 4 p.m. N/A N/A N/A N/A N/A 15.0 ppb (22) 51.0 ppb (48) 0.48 ppb (6) 49.4 μg/m3 (46) N/A 48.0
 
April 18, 2021, 3 p.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 37.0 ppb (35) 0.53 ppb (6) 54.0 μg/m3 (50) N/A 50.0
 
April 18, 2021, 2 p.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 23.0 ppb (22) 0.7 ppb (8) 59.0 μg/m3 (53) N/A 53.0
 
April 18, 2021, 1 p.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 11.0 ppb (11) 0.75 ppb (10) 60.5 μg/m3 (54) N/A 54.0
 
April 18, 2021, noon N/A N/A N/A N/A N/A 13.0 ppb (19) 12.0 ppb (12) 0.54 ppb (6) 53.0 μg/m3 (50) N/A 50.0
 
April 18, 2021, 11 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 17.0 ppb (16) 0.44 ppb (5) 50.5 μg/m3 (47) N/A 47.0
 
April 18, 2021, 10 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 29.0 ppb (27) 0.39 ppb (5) 54.0 μg/m3 (50) N/A 50.0
 
April 18, 2021, 9 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 28.0 ppb (26) 0.45 ppb (6) 54.7 μg/m3 (51) N/A 51.0
 
April 18, 2021, 8 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 27.0 ppb (25) 0.49 ppb (6) 60.5 μg/m3 (54) N/A 54.0
 
April 18, 2021, 7 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 20.0 ppb (19) 0.67 ppb (8) 61.2 μg/m3 (55) N/A 55.0
 
April 18, 2021, 6 a.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 25.0 ppb (24) 0.49 ppb (6) 52.6 μg/m3 (49) N/A 49.0
 
April 18, 2021, 5 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 28.0 ppb (26) 0.58 ppb (7) 55.4 μg/m3 (52) N/A 52.0
 
April 18, 2021, 4 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 34.0 ppb (32) 0.65 ppb (8) 66.2 μg/m3 (57) N/A 57.0
 
April 18, 2021, 3 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 31.0 ppb (29) 0.65 ppb (8) 42.1 μg/m3 (39) N/A 39.0
 
April 18, 2021, 2 a.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 40.0 ppb (38) 0.48 ppb (6) 60.6 μg/m3 (54) N/A 54.0
 
April 18, 2021, 1 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 51.0 ppb (48) 0.41 ppb (5) 82.7 μg/m3 (65) N/A 65.0
 
April 18, 2021, midnight N/A N/A N/A N/A N/A 13.0 ppb (19) 57.0 ppb (58) 0.4 ppb (5) 74.6 μg/m3 (61) N/A 61.0
 
April 17, 2021, 11 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 51.0 ppb (48) 0.41 ppb (5) 53.7 μg/m3 (50) N/A 50.0
 
April 17, 2021, 10 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 53.0 ppb (50) 0.41 ppb (5) 30.8 μg/m3 (29) N/A 50.0
 
April 17, 2021, 9 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 70.0 ppb (100) 0.39 ppb (5) 42.8 μg/m3 (40) N/A 100.0
 
April 17, 2021, 8 p.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 66.0 ppb (87) 0.44 ppb (5) 39.5 μg/m3 (37) N/A 87.0
 
April 17, 2021, 7 p.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 61.0 ppb (71) 0.51 ppb (6) 38.9 μg/m3 (37) N/A 71.0
 
April 17, 2021, 6 p.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 61.0 ppb (71) 0.35 ppb (4) 39.1 μg/m3 (37) N/A 71.0
 
April 17, 2021, 5 p.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 51.0 ppb (48) 0.43 ppb (5) 38.2 μg/m3 (36) N/A 48.0
 
April 17, 2021, 4 p.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 39.0 ppb (37) 0.48 ppb (6) 47.2 μg/m3 (44) N/A 44.0
 
April 17, 2021, 3 p.m. N/A N/A N/A N/A N/A 15.0 ppb (22) 20.0 ppb (19) 0.71 ppb (8) 61.5 μg/m3 (55) N/A 55.0
 
April 17, 2021, 2 p.m. N/A N/A N/A N/A N/A 15.0 ppb (22) 10.0 ppb (10) 0.78 ppb (10) 54.4 μg/m3 (51) N/A 51.0
 
April 17, 2021, 1 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 8.0 ppb (8) 0.73 ppb (8) 57.0 μg/m3 (52) N/A 52.0
 
April 17, 2021, noon N/A N/A N/A N/A N/A 13.0 ppb (19) 19.0 ppb (18) 0.38 ppb (5) 43.1 μg/m3 (40) N/A 40.0
 
April 17, 2021, 11 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 30.0 ppb (28) 0.3 ppb (4) 56.1 μg/m3 (52) N/A 52.0
 
April 17, 2021, 10 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 32.0 ppb (30) 0.34 ppb (4) 49.8 μg/m3 (47) N/A 47.0
 
April 17, 2021, 9 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 38.0 ppb (36) 0.36 ppb (5) 48.9 μg/m3 (46) N/A 46.0
 
April 17, 2021, 8 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 37.0 ppb (35) 0.39 ppb (5) 52.0 μg/m3 (49) N/A 49.0
 
April 17, 2021, 7 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 30.0 ppb (28) 0.42 ppb (5) 66.9 μg/m3 (57) N/A 57.0
 
April 17, 2021, 6 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 31.0 ppb (29) 0.52 ppb (6) 62.1 μg/m3 (55) N/A 55.0
 
April 17, 2021, 5 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 35.0 ppb (33) 0.51 ppb (6) 66.7 μg/m3 (57) N/A 57.0
 
April 17, 2021, 4 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 39.0 ppb (37) 0.52 ppb (6) 63.1 μg/m3 (56) N/A 56.0
 
April 17, 2021, 3 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 42.0 ppb (39) 0.63 ppb (7) 74.3 μg/m3 (61) N/A 61.0
 
April 17, 2021, 2 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 39.0 ppb (37) 0.73 ppb (8) 55.4 μg/m3 (52) N/A 52.0
 
April 17, 2021, 1 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 53.0 ppb (50) 0.64 ppb (7) 44.7 μg/m3 (42) N/A 50.0
 
April 17, 2021, midnight N/A N/A N/A N/A N/A 13.0 ppb (19) 63.0 ppb (78) 0.46 ppb (6) 42.5 μg/m3 (40) N/A 78.0
 
April 16, 2021, 11 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 64.0 ppb (81) 0.51 ppb (6) 44.3 μg/m3 (42) N/A 81.0
 
April 16, 2021, 10 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 65.0 ppb (84) 0.52 ppb (6) 36.6 μg/m3 (34) N/A 84.0
 
April 16, 2021, 9 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 65.0 ppb (84) 0.47 ppb (6) 33.2 μg/m3 (31) N/A 84.0
 
April 16, 2021, 8 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 63.0 ppb (78) 0.48 ppb (6) 36.6 μg/m3 (34) N/A 78.0
 
April 16, 2021, 7 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 60.0 ppb (68) 0.48 ppb (6) 45.0 μg/m3 (42) N/A 68.0
 
April 16, 2021, 6 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 62.0 ppb (74) 0.46 ppb (6) 46.7 μg/m3 (44) N/A 74.0
 
April 16, 2021, 5 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 53.0 ppb (50) 0.43 ppb (5) 43.9 μg/m3 (41) N/A 50.0
 
April 16, 2021, 4 p.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 38.0 ppb (36) 0.61 ppb (7) 52.6 μg/m3 (49) N/A 49.0
 
April 16, 2021, 3 p.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 25.0 ppb (24) 0.71 ppb (8) 55.8 μg/m3 (52) N/A 52.0
 
April 16, 2021, 2 p.m. N/A N/A N/A N/A N/A 15.0 ppb (22) 11.0 ppb (11) 0.75 ppb (10) 65.4 μg/m3 (57) N/A 57.0
 
April 16, 2021, 1 p.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 7.0 ppb (7) 0.95 ppb (11) 57.8 μg/m3 (53) N/A 53.0
 
April 16, 2021, noon N/A N/A N/A N/A N/A 13.0 ppb (19) 20.0 ppb (19) 0.52 ppb (6) 53.3 μg/m3 (50) N/A 50.0
 
April 16, 2021, 11 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 24.0 ppb (23) 0.32 ppb (4) 55.4 μg/m3 (52) N/A 52.0
 
April 16, 2021, 10 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 22.0 ppb (21) 0.31 ppb (4) 57.0 μg/m3 (52) N/A 52.0
 
April 16, 2021, 9 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 33.0 ppb (31) 0.31 ppb (4) 50.4 μg/m3 (47) N/A 47.0
 
April 16, 2021, 8 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 33.0 ppb (31) 0.37 ppb (5) 48.8 μg/m3 (46) N/A 46.0
 
April 16, 2021, 7 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 42.0 ppb (39) 0.47 ppb (6) 58.3 μg/m3 (53) N/A 53.0
 
April 16, 2021, 6 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 38.0 ppb (36) 0.5 ppb (6) 74.1 μg/m3 (61) N/A 61.0
 
April 16, 2021, 5 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 41.0 ppb (38) 0.52 ppb (6) 76.7 μg/m3 (62) N/A 62.0
 
April 16, 2021, 4 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 43.0 ppb (40) 0.48 ppb (6) 54.8 μg/m3 (51) N/A 51.0
 
April 16, 2021, 3 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 40.0 ppb (38) 0.52 ppb (6) 59.6 μg/m3 (54) N/A 54.0
 
April 16, 2021, 2 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 28.0 ppb (26) 0.81 ppb (10) 49.1 μg/m3 (46) N/A 46.0
 
April 16, 2021, 1 a.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 57.0 ppb (58) 0.41 ppb (5) 44.2 μg/m3 (41) N/A 58.0
 
April 16, 2021, midnight N/A N/A N/A N/A N/A 12.0 ppb (18) 60.0 ppb (68) 0.54 ppb (6) 39.8 μg/m3 (37) N/A 68.0
 
April 15, 2021, 11 p.m. N/A N/A N/A N/A N/A 12.0 ppb (18) 64.0 ppb (81) 0.42 ppb (5) 40.7 μg/m3 (38) N/A 81.0
 
April 15, 2021, 10 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 67.0 ppb (91) 0.34 ppb (4) 38.1 μg/m3 (36) N/A 91.0
 
April 15, 2021, 9 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 65.0 ppb (84) 0.37 ppb (5) 35.6 μg/m3 (33) N/A 84.0
 
April 15, 2021, 8 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 65.0 ppb (84) 0.36 ppb (5) 33.3 μg/m3 (31) N/A 84.0
 
April 15, 2021, 7 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 64.0 ppb (81) 0.47 ppb (6) 44.4 μg/m3 (42) N/A 81.0
 
April 15, 2021, 6 p.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 66.0 ppb (87) 0.43 ppb (5) 47.0 μg/m3 (44) N/A 87.0
 
April 15, 2021, 5 p.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 53.0 ppb (50) 0.58 ppb (7) 45.4 μg/m3 (43) N/A 50.0
 
April 15, 2021, 4 p.m. N/A N/A N/A N/A N/A 15.0 ppb (22) 43.0 ppb (40) 0.47 ppb (6) 62.2 μg/m3 (55) N/A 55.0
 
April 15, 2021, 3 p.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 25.0 ppb (24) 0.72 ppb (8) 68.9 μg/m3 (58) N/A 58.0
 
April 15, 2021, 2 p.m. N/A N/A N/A N/A N/A 17.0 ppb (25) 5.0 ppb (5) 1.3 ppb (15) 73.5 μg/m3 (61) N/A 61.0
 
April 15, 2021, 1 p.m. N/A N/A N/A N/A N/A 17.0 ppb (25) 3.0 ppb (3) 0.8 ppb (10) 62.3 μg/m3 (55) N/A 55.0
 
April 15, 2021, noon N/A N/A N/A N/A N/A 17.0 ppb (25) 5.0 ppb (5) 0.62 ppb (7) 46.8 μg/m3 (44) N/A 44.0
 
April 15, 2021, 11 a.m. N/A N/A N/A N/A N/A 21.0 ppb (30) 21.0 ppb (20) 0.3 ppb (4) 36.2 μg/m3 (34) N/A 34.0
 
April 15, 2021, 10 a.m. N/A N/A N/A N/A N/A 23.0 ppb (33) 36.0 ppb (34) 0.25 ppb (3) 39.0 μg/m3 (37) N/A 37.0