AQSQID: 80011G009

Site Name: Estaci¢N Hospital General

Location: Silao, MX

Reporting: True, Located: True

Current AQI: 72.0

Silao MX, MX: 20.9479, -101.4258

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 25, 2019, 8 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.72 ppb (19) 99.0 μg/m3 (72) N/A 72.0
 
March 25, 2019, 7 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A 1.78 ppb (20) 65.0 μg/m3 (55) N/A 55.0
 
March 25, 2019, 6 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A 1.75 ppb (19) 121.0 μg/m3 (83) N/A 83.0
 
March 25, 2019, 5 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A 2.19 ppb (24) 110.0 μg/m3 (78) N/A 78.0
 
March 25, 2019, 4 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A 2.2 ppb (24) 83.0 μg/m3 (64) N/A 64.0
 
March 25, 2019, 3 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 2.17 ppb (24) 107.0 μg/m3 (76) N/A 76.0
 
March 25, 2019, 2 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.63 ppb (18) 48.0 μg/m3 (44) N/A 44.0
 
March 25, 2019, 1 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.09 ppb (12) 25.0 μg/m3 (23) N/A 23.0
 
March 25, 2019, midnight N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 0.82 ppb (9) 27.0 μg/m3 (25) N/A 25.0
 
March 24, 2019, 11 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) N/A 0.79 ppb (9) 35.0 μg/m3 (32) N/A 32.0
 
March 24, 2019, 10 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) N/A 0.92 ppb (10) 25.0 μg/m3 (23) N/A 23.0
 
March 24, 2019, 9 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) N/A 0.74 ppb (8) 25.0 μg/m3 (23) N/A 23.0
 
March 24, 2019, 8 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 0.73 ppb (8) 31.0 μg/m3 (28) N/A 28.0
 
March 24, 2019, 7 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 0.93 ppb (10) 32.0 μg/m3 (29) N/A 29.0
 
March 24, 2019, 6 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 0.97 ppb (11) 48.0 μg/m3 (44) N/A 44.0
 
March 24, 2019, 5 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) N/A 1.24 ppb (14) 70.0 μg/m3 (58) N/A 58.0
 
March 24, 2019, 4 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.81 ppb (20) 93.0 μg/m3 (69) N/A 69.0
 
March 24, 2019, 3 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A 2.01 ppb (22) 139.0 μg/m3 (92) N/A 92.0
 
March 24, 2019, 2 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A 2.55 ppb (28) 112.0 μg/m3 (78) N/A 78.0
 
March 24, 2019, 1 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 2.28 ppb (25) 84.0 μg/m3 (64) N/A 64.0
 
March 24, 2019, noon N/A N/A N/A N/A N/A 4.0 ppb (6) N/A 1.85 ppb (21) 70.0 μg/m3 (58) N/A 58.0
 
March 24, 2019, 11 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A 1.77 ppb (20) 71.0 μg/m3 (58) N/A 58.0
 
March 24, 2019, 10 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A 1.77 ppb (20) 72.0 μg/m3 (58) N/A 58.0
 
March 24, 2019, 9 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.82 ppb (20) 64.0 μg/m3 (54) N/A 54.0
 
March 24, 2019, 8 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A 1.78 ppb (20) 97.0 μg/m3 (71) N/A 71.0
 
March 24, 2019, 7 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A 1.76 ppb (20) 85.0 μg/m3 (65) N/A 65.0
 
March 24, 2019, 6 a.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A 2.1 ppb (23) 61.0 μg/m3 (53) N/A 53.0
 
March 24, 2019, 5 a.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A 1.65 ppb (18) 77.0 μg/m3 (61) N/A 61.0
 
March 24, 2019, 4 a.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A 1.88 ppb (21) 84.0 μg/m3 (64) N/A 64.0
 
March 24, 2019, 3 a.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A 1.92 ppb (21) 56.0 μg/m3 (50) N/A 50.0
 
March 24, 2019, 2 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A 1.14 ppb (13) 31.0 μg/m3 (28) N/A 28.0
 
March 24, 2019, 1 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A 0.96 ppb (11) 22.0 μg/m3 (20) N/A 20.0
 
March 24, 2019, midnight N/A N/A N/A N/A N/A 4.0 ppb (6) N/A 0.89 ppb (10) 28.0 μg/m3 (25) N/A 25.0
 
March 23, 2019, 11 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A 0.88 ppb (10) 26.0 μg/m3 (24) N/A 24.0
 
March 23, 2019, 10 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A 0.73 ppb (8) 36.0 μg/m3 (33) N/A 33.0
 
March 23, 2019, 9 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A 0.89 ppb (10) 29.0 μg/m3 (26) N/A 26.0
 
March 23, 2019, 8 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A 0.95 ppb (11) 37.0 μg/m3 (34) N/A 34.0
 
March 23, 2019, 7 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A 1.22 ppb (14) 40.0 μg/m3 (36) N/A 36.0
 
March 23, 2019, 6 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A 1.26 ppb (14) N/A N/A 14.0
 
March 23, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A 1.07 ppb (12) N/A N/A 12.0
 
March 23, 2019, 4 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) N/A 1.19 ppb (13) N/A N/A 13.0
 
March 23, 2019, 3 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) N/A 1.49 ppb (17) 175.0 μg/m3 (110) N/A 110.0
 
March 23, 2019, 2 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) N/A 2.36 ppb (26) 115.0 μg/m3 (80) N/A 80.0
 
March 23, 2019, 1 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) N/A 2.18 ppb (24) 74.0 μg/m3 (60) N/A 60.0
 
March 23, 2019, noon N/A N/A N/A N/A N/A 6.0 ppb (9) N/A 1.76 ppb (20) 55.0 μg/m3 (50) N/A 50.0
 
March 23, 2019, 11 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) N/A 1.41 ppb (16) 41.0 μg/m3 (37) N/A 37.0
 
March 23, 2019, 10 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) N/A 1.36 ppb (15) 47.0 μg/m3 (43) N/A 43.0
 
March 23, 2019, 9 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.31 ppb (15) 62.0 μg/m3 (54) N/A 54.0
 
March 23, 2019, 8 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.44 ppb (16) 38.0 μg/m3 (35) N/A 35.0
 
March 23, 2019, 7 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.31 ppb (15) 36.0 μg/m3 (33) N/A 33.0
 
March 23, 2019, 6 a.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A 1.73 ppb (19) 46.0 μg/m3 (42) N/A 42.0
 
March 23, 2019, 5 a.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A 1.85 ppb (21) 41.0 μg/m3 (37) N/A 37.0
 
March 23, 2019, 4 a.m. N/A N/A N/A N/A N/A 3.0 ppb (4) N/A 1.72 ppb (19) 51.0 μg/m3 (46) N/A 46.0
 
March 23, 2019, 3 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A 1.77 ppb (20) 75.0 μg/m3 (60) N/A 60.0
 
March 23, 2019, 2 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A 1.7 ppb (19) 73.0 μg/m3 (59) N/A 59.0
 
March 23, 2019, 1 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A 1.55 ppb (17) 52.0 μg/m3 (47) N/A 47.0
 
March 23, 2019, midnight N/A N/A N/A N/A N/A 4.0 ppb (6) N/A 1.44 ppb (16) 29.0 μg/m3 (26) N/A 26.0
 
March 22, 2019, 11 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.25 ppb (14) 31.0 μg/m3 (28) N/A 28.0
 
March 22, 2019, 10 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.2 ppb (13) N/A N/A 13.0
 
March 22, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A 1.32 ppb (15) N/A N/A 15.0
 
March 22, 2019, 8 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) N/A 0.99 ppb (11) 33.0 μg/m3 (30) N/A 30.0
 
March 22, 2019, 7 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) N/A 0.95 ppb (11) 35.0 μg/m3 (32) N/A 32.0
 
March 22, 2019, 6 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) N/A 0.99 ppb (11) 48.0 μg/m3 (44) N/A 44.0
 
March 22, 2019, 5 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) N/A 1.3 ppb (14) 59.0 μg/m3 (52) N/A 52.0
 
March 22, 2019, 4 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.44 ppb (16) 73.0 μg/m3 (59) N/A 59.0
 
March 22, 2019, 3 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.49 ppb (17) 40.0 μg/m3 (36) N/A 36.0
 
March 22, 2019, 2 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.66 ppb (18) 47.0 μg/m3 (43) N/A 43.0
 
March 22, 2019, 1 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.57 ppb (17) 42.0 μg/m3 (38) N/A 38.0
 
March 22, 2019, noon N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.6 ppb (18) 51.0 μg/m3 (46) N/A 46.0
 
March 22, 2019, 11 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.44 ppb (16) 29.0 μg/m3 (26) N/A 26.0
 
March 22, 2019, 10 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.33 ppb (15) 24.0 μg/m3 (22) N/A 22.0
 
March 22, 2019, 9 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.31 ppb (15) 27.0 μg/m3 (25) N/A 25.0
 
March 22, 2019, 8 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A 1.24 ppb (14) 24.0 μg/m3 (22) N/A 22.0
 
March 22, 2019, 7 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A 1.3 ppb (14) 30.0 μg/m3 (27) N/A 27.0
 
March 22, 2019, 6 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A 1.31 ppb (15) 48.0 μg/m3 (44) N/A 44.0
 
March 22, 2019, 5 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A 1.34 ppb (15) 84.0 μg/m3 (64) N/A 64.0
 
March 22, 2019, 4 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A 1.44 ppb (16) 76.0 μg/m3 (60) N/A 60.0
 
March 22, 2019, 3 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.97 ppb (22) 83.0 μg/m3 (64) N/A 64.0
 
March 22, 2019, 2 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 2.2 ppb (24) 25.0 μg/m3 (23) N/A 24.0
 
March 22, 2019, 1 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.21 ppb (13) 24.0 μg/m3 (22) N/A 22.0
 
March 22, 2019, midnight N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.27 ppb (14) 32.0 μg/m3 (29) N/A 29.0
 
March 21, 2019, 11 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 0.92 ppb (10) 33.0 μg/m3 (30) N/A 30.0
 
March 21, 2019, 10 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.13 ppb (13) 25.0 μg/m3 (23) N/A 23.0
 
March 21, 2019, 9 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.02 ppb (11) 34.0 μg/m3 (31) N/A 31.0
 
March 21, 2019, 8 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 0.97 ppb (11) 31.0 μg/m3 (28) N/A 28.0
 
March 21, 2019, 7 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.05 ppb (12) 42.0 μg/m3 (38) N/A 38.0
 
March 21, 2019, 6 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.24 ppb (14) 42.0 μg/m3 (38) N/A 38.0
 
March 21, 2019, 5 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.29 ppb (14) 47.0 μg/m3 (43) N/A 43.0
 
March 21, 2019, 4 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.42 ppb (16) 60.0 μg/m3 (52) N/A 52.0
 
March 21, 2019, 3 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 2.0 ppb (2) 1.61 ppb (18) 78.0 μg/m3 (62) N/A 62.0
 
March 21, 2019, 2 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 1.0 ppb (1) 1.93 ppb (21) 48.0 μg/m3 (44) N/A 44.0
 
March 21, 2019, 1 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 1.0 ppb (1) 1.71 ppb (19) 31.0 μg/m3 (28) N/A 28.0
 
March 21, 2019, noon N/A N/A N/A N/A N/A 4.0 ppb (6) 1.0 ppb (1) 1.47 ppb (16) 33.0 μg/m3 (30) N/A 30.0
 
March 21, 2019, 11 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 2.0 ppb (2) 1.47 ppb (16) 36.0 μg/m3 (33) N/A 33.0
 
March 21, 2019, 10 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 2.0 ppb (2) 1.43 ppb (16) 30.0 μg/m3 (27) N/A 27.0
 
March 21, 2019, 9 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 2.0 ppb (2) 1.36 ppb (15) 33.0 μg/m3 (30) N/A 30.0
 
March 21, 2019, 8 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 2.0 ppb (2) 1.31 ppb (15) 28.0 μg/m3 (25) N/A 25.0
 
March 21, 2019, 7 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 2.0 ppb (2) 1.33 ppb (15) 56.0 μg/m3 (50) N/A 50.0
 
March 21, 2019, 6 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 2.0 ppb (2) 1.07 ppb (12) 64.0 μg/m3 (54) N/A 54.0
 
March 21, 2019, 5 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 2.0 ppb (2) 1.11 ppb (12) 107.0 μg/m3 (76) N/A 76.0
 
March 21, 2019, 4 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 1.0 ppb (1) 1.66 ppb (18) 60.0 μg/m3 (52) N/A 52.0
 
March 21, 2019, 3 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 2.0 ppb (2) 1.24 ppb (14) 56.0 μg/m3 (50) N/A 50.0
 
March 21, 2019, 2 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 3.0 ppb (2) 1.1 ppb (12) 24.0 μg/m3 (22) N/A 22.0
 
March 21, 2019, 1 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 4.0 ppb (3) 0.95 ppb (11) 32.0 μg/m3 (29) N/A 29.0
 
March 21, 2019, midnight N/A N/A N/A N/A N/A 5.0 ppb (7) 3.0 ppb (2) 0.74 ppb (8) 38.0 μg/m3 (35) N/A 35.0
 
March 20, 2019, 11 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 3.0 ppb (2) 0.72 ppb (8) 44.0 μg/m3 (40) N/A 40.0
 
March 20, 2019, 10 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 3.0 ppb (2) 0.46 ppb (5) 35.0 μg/m3 (32) N/A 32.0
 
March 20, 2019, 9 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 4.0 ppb (3) 0.42 ppb (5) 39.0 μg/m3 (35) N/A 35.0
 
March 20, 2019, 8 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 3.0 ppb (2) 0.7 ppb (8) 43.0 μg/m3 (39) N/A 39.0
 
March 20, 2019, 7 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 3.0 ppb (2) 0.64 ppb (7) 38.0 μg/m3 (35) N/A 35.0
 
March 20, 2019, 6 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 3.0 ppb (2) 0.98 ppb (11) 57.0 μg/m3 (51) N/A 51.0
 
March 20, 2019, 5 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 3.0 ppb (2) 1.0 ppb (11) 48.0 μg/m3 (44) N/A 44.0
 
March 20, 2019, 4 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 2.0 ppb (2) 1.13 ppb (13) 73.0 μg/m3 (59) N/A 59.0
 
March 20, 2019, 3 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 2.0 ppb (2) 1.29 ppb (14) 90.0 μg/m3 (68) N/A 68.0
 
March 20, 2019, 2 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 2.0 ppb (2) 1.72 ppb (19) 58.0 μg/m3 (52) N/A 52.0
 
March 20, 2019, 1 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 1.0 ppb (1) 1.4 ppb (16) 41.0 μg/m3 (37) N/A 37.0
 
March 20, 2019, noon N/A N/A N/A N/A N/A 5.0 ppb (7) 3.0 ppb (2) 1.24 ppb (14) 50.0 μg/m3 (45) N/A 45.0
 
March 20, 2019, 11 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 2.0 ppb (2) 1.21 ppb (13) 49.0 μg/m3 (45) N/A 45.0
 
March 20, 2019, 10 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 2.0 ppb (2) 1.19 ppb (13) 37.0 μg/m3 (34) N/A 34.0
 
March 20, 2019, 9 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 2.0 ppb (2) 1.12 ppb (12) 50.0 μg/m3 (45) N/A 45.0
 
March 20, 2019, 8 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 2.0 ppb (2) 1.13 ppb (13) 51.0 μg/m3 (46) N/A 46.0
 
March 20, 2019, 7 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A 1.2 ppb (13) 46.0 μg/m3 (42) N/A 42.0
 
March 20, 2019, 6 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.31 ppb (15) 48.0 μg/m3 (44) N/A 44.0
 
March 20, 2019, 5 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 23.0 ppb (18) 1.24 ppb (14) 57.0 μg/m3 (51) N/A 51.0
 
March 20, 2019, 4 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 16.0 ppb (12) 1.19 ppb (13) 56.0 μg/m3 (50) N/A 50.0
 
March 20, 2019, 3 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) 19.0 ppb (15) 1.14 ppb (13) 57.0 μg/m3 (51) N/A 51.0
 
March 20, 2019, 2 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 24.0 ppb (18) 1.09 ppb (12) 33.0 μg/m3 (30) N/A 30.0
 
March 20, 2019, 1 a.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 33.0 ppb (25) 0.88 ppb (10) 39.0 μg/m3 (35) N/A 35.0
 
March 20, 2019, midnight N/A N/A N/A N/A N/A 6.0 ppb (9) 35.0 ppb (27) 0.52 ppb (6) 47.0 μg/m3 (43) N/A 43.0
 
March 19, 2019, 11 p.m. N/A N/A N/A N/A N/A 7.0 ppb (10) 34.0 ppb (26) 0.38 ppb (4) 33.0 μg/m3 (30) N/A 30.0
 
March 19, 2019, 10 p.m. N/A N/A N/A N/A N/A 8.0 ppb (11) 37.0 ppb (28) 0.31 ppb (3) 67.0 μg/m3 (56) N/A 56.0
 
March 19, 2019, 9 p.m. N/A N/A N/A N/A N/A 8.0 ppb (11) N/A 0.43 ppb (5) 40.0 μg/m3 (36) N/A 36.0
 
March 19, 2019, 8 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) N/A 0.62 ppb (7) 30.0 μg/m3 (27) N/A 27.0
 
March 19, 2019, 7 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) N/A 0.73 ppb (8) 45.0 μg/m3 (41) N/A 41.0
 
March 19, 2019, 6 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) N/A 0.88 ppb (10) 54.0 μg/m3 (49) N/A 49.0
 
March 19, 2019, 5 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) N/A 1.04 ppb (12) 74.0 μg/m3 (60) N/A 60.0
 
March 19, 2019, 4 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.26 ppb (14) 65.0 μg/m3 (55) N/A 55.0
 
March 19, 2019, 3 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.42 ppb (16) 52.0 μg/m3 (47) N/A 47.0
 
March 19, 2019, 2 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.54 ppb (17) 51.0 μg/m3 (46) N/A 46.0
 
March 19, 2019, 1 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.29 ppb (14) 28.0 μg/m3 (25) N/A 25.0
 
March 19, 2019, noon N/A N/A N/A N/A N/A 4.0 ppb (6) N/A 1.12 ppb (12) 33.0 μg/m3 (30) N/A 30.0
 
March 19, 2019, 11 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A 1.1 ppb (12) 28.0 μg/m3 (25) N/A 25.0
 
March 19, 2019, 10 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.11 ppb (12) 24.0 μg/m3 (22) N/A 22.0
 
March 19, 2019, 9 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 0.75 ppb (8) 34.0 μg/m3 (31) N/A 31.0
 
March 19, 2019, 8 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A N/A 39.0 μg/m3 (35) N/A 35.0
 
March 19, 2019, 7 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A 1.09 ppb (12) 50.0 μg/m3 (45) N/A 45.0
 
March 19, 2019, 6 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A 1.62 ppb (18) 47.0 μg/m3 (43) N/A 43.0
 
March 19, 2019, 5 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A 1.67 ppb (19) 51.0 μg/m3 (46) N/A 46.0
 
March 19, 2019, 4 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.63 ppb (18) 60.0 μg/m3 (52) N/A 52.0
 
March 19, 2019, 3 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.64 ppb (18) 48.0 μg/m3 (44) N/A 44.0
 
March 19, 2019, 2 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.43 ppb (16) 49.0 μg/m3 (45) N/A 45.0
 
March 19, 2019, 1 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.34 ppb (15) 69.0 μg/m3 (57) N/A 57.0
 
March 19, 2019, midnight N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.05 ppb (12) 106.0 μg/m3 (76) N/A 76.0
 
March 18, 2019, 11 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.01 ppb (11) 76.0 μg/m3 (60) N/A 60.0
 
March 18, 2019, 10 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 0.97 ppb (11) 42.0 μg/m3 (38) N/A 38.0
 
March 18, 2019, 9 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.13 ppb (13) 43.0 μg/m3 (39) N/A 39.0
 
March 18, 2019, 8 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) N/A 1.4 ppb (16) 51.0 μg/m3 (46) N/A 46.0
 
March 18, 2019, 7 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) N/A 1.25 ppb (14) 49.0 μg/m3 (45) N/A 45.0
 
March 18, 2019, 6 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.32 ppb (15) 42.0 μg/m3 (38) N/A 38.0
 
March 18, 2019, 5 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.51 ppb (17) 50.0 μg/m3 (45) N/A 45.0
 
March 18, 2019, 4 p.m. N/A N/A N/A N/A N/A 4.0 ppb (6) N/A 1.57 ppb (17) 55.0 μg/m3 (50) N/A 50.0
 
March 18, 2019, 3 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.63 ppb (18) 43.0 μg/m3 (39) N/A 39.0
 
March 18, 2019, 2 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.65 ppb (18) 44.0 μg/m3 (40) N/A 40.0
 
March 18, 2019, 1 p.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.64 ppb (18) 19.0 μg/m3 (17) N/A 18.0
 
March 18, 2019, noon N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.45 ppb (16) 21.0 μg/m3 (19) N/A 19.0
 
March 18, 2019, 11 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.44 ppb (16) 25.0 μg/m3 (23) N/A 23.0
 
March 18, 2019, 10 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.45 ppb (16) 28.0 μg/m3 (25) N/A 25.0
 
March 18, 2019, 9 a.m. N/A N/A N/A N/A N/A 5.0 ppb (7) N/A 1.34 ppb (15) 31.0 μg/m3 (28) N/A 28.0