AQSQID: 80011G013

Site Name: Estaci¢N Dif

Location: Salamanca (Irapuato), MX

Reporting: True, Located: True

Current AQI: 122.0

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
April 8, 2020, 3 p.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 26.0 ppb (20) 2.08 ppb (23) 76.0 μg/m3 (60) 44.1 μg/m3 (122) 122.0
 
April 8, 2020, 2 p.m. N/A N/A N/A N/A N/A 17.0 ppb (24) 7.0 ppb (5) 2.39 ppb (27) 80.0 μg/m3 (62) 23.2 μg/m3 (74) 74.0
 
April 8, 2020, 1 p.m. N/A N/A N/A N/A N/A 12.0 ppb (17) 3.0 ppb (2) 2.04 ppb (23) 50.0 μg/m3 (45) 20.4 μg/m3 (68) 68.0
 
April 8, 2020, noon N/A N/A N/A N/A N/A 12.0 ppb (17) 12.0 ppb (9) 1.52 ppb (17) 23.0 μg/m3 (21) 19.6 μg/m3 (66) 66.0
 
April 8, 2020, 11 a.m. N/A N/A N/A N/A N/A 12.0 ppb (17) 20.0 ppb (15) 1.41 ppb (16) 27.0 μg/m3 (25) 19.1 μg/m3 (65) 65.0
 
April 8, 2020, 10 a.m. N/A N/A N/A N/A N/A 12.0 ppb (17) 31.0 ppb (24) 1.44 ppb (16) 32.0 μg/m3 (29) 18.9 μg/m3 (65) 65.0
 
April 8, 2020, 9 a.m. N/A N/A N/A N/A N/A 12.0 ppb (17) 27.0 ppb (21) 1.44 ppb (16) 34.0 μg/m3 (31) 42.3 μg/m3 (117) 117.0
 
April 8, 2020, 8 a.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 20.0 ppb (15) 1.43 ppb (16) 37.0 μg/m3 (34) 30.5 μg/m3 (89) 89.0
 
April 8, 2020, 7 a.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 26.0 ppb (20) 1.41 ppb (16) 34.0 μg/m3 (31) 36.5 μg/m3 (102) 102.0
 
April 8, 2020, 6 a.m. N/A N/A N/A N/A N/A 12.0 ppb (17) 23.0 ppb (18) 1.43 ppb (16) 35.0 μg/m3 (32) 19.0 μg/m3 (65) 65.0
 
April 8, 2020, 4 a.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 28.0 ppb (22) 1.45 ppb (16) 44.0 μg/m3 (40) 13.9 μg/m3 (54) 54.0
 
April 8, 2020, 3 a.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 30.0 ppb (23) 1.45 ppb (16) 55.0 μg/m3 (50) 42.2 μg/m3 (117) 117.0
 
April 8, 2020, 2 a.m. N/A N/A N/A N/A N/A 12.0 ppb (17) 29.0 ppb (22) 1.59 ppb (18) 102.0 μg/m3 (74) 38.5 μg/m3 (108) 108.0
 
April 8, 2020, 1 a.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 30.0 ppb (23) 1.65 ppb (18) 99.0 μg/m3 (72) 12.1 μg/m3 (50) 72.0
 
April 8, 2020, midnight N/A N/A N/A N/A N/A 15.0 ppb (21) 36.0 ppb (28) 1.58 ppb (18) 42.0 μg/m3 (38) 15.4 μg/m3 (57) 57.0
 
April 7, 2020, 11 p.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 41.0 ppb (32) 1.63 ppb (18) 29.0 μg/m3 (26) 17.8 μg/m3 (62) 62.0
 
April 7, 2020, 10 p.m. N/A N/A N/A N/A N/A 12.0 ppb (17) 47.0 ppb (36) 1.57 ppb (17) 22.0 μg/m3 (20) 12.4 μg/m3 (51) 51.0
 
April 7, 2020, 9 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 43.0 ppb (33) 1.56 ppb (17) 23.0 μg/m3 (21) 10.9 μg/m3 (45) 45.0
 
April 7, 2020, 8 p.m. N/A N/A N/A N/A N/A 10.0 ppb (14) 41.0 ppb (32) 1.6 ppb (18) 29.0 μg/m3 (26) 17.0 μg/m3 (61) 61.0
 
April 7, 2020, 7 p.m. N/A N/A N/A N/A N/A 9.0 ppb (13) 38.0 ppb (29) 1.58 ppb (18) 18.0 μg/m3 (16) 14.2 μg/m3 (55) 55.0
 
April 7, 2020, 6 p.m. N/A N/A N/A N/A N/A 9.0 ppb (13) 33.0 ppb (25) 1.56 ppb (17) 10.0 μg/m3 (9) 22.3 μg/m3 (72) 72.0
 
April 7, 2020, 5 p.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 31.0 ppb (24) 1.51 ppb (17) 15.0 μg/m3 (14) 7.7 μg/m3 (32) 32.0
 
April 7, 2020, 4 p.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 29.0 ppb (22) 1.61 ppb (18) 29.0 μg/m3 (26) 20.5 μg/m3 (68) 68.0
 
April 7, 2020, 3 p.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 28.0 ppb (22) 1.66 ppb (18) 38.0 μg/m3 (35) 19.9 μg/m3 (67) 67.0
 
April 7, 2020, 2 p.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 25.0 ppb (19) 1.77 ppb (20) 52.0 μg/m3 (47) 6.7 μg/m3 (28) 47.0
 
April 7, 2020, 1 p.m. N/A N/A N/A N/A N/A 19.0 ppb (27) 8.0 ppb (6) 1.66 ppb (18) 29.0 μg/m3 (26) 18.6 μg/m3 (64) 64.0
 
April 7, 2020, noon N/A N/A N/A N/A N/A 19.0 ppb (27) 6.0 ppb (5) 1.45 ppb (16) 24.0 μg/m3 (22) 7.3 μg/m3 (30) 30.0
 
April 3, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 142.4 μg/m3 (196) 196.0
 
April 3, 2020, 3 p.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 28.0 ppb (22) 1.63 ppb (18) 39.0 μg/m3 (35) 78.2 μg/m3 (162) 162.0
 
April 3, 2020, 2 p.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 12.0 ppb (9) 1.71 ppb (19) 53.0 μg/m3 (48) 26.6 μg/m3 (81) 81.0
 
April 3, 2020, 1 p.m. N/A N/A N/A N/A N/A 19.0 ppb (27) 12.0 ppb (9) 1.61 ppb (18) 39.0 μg/m3 (35) 13.5 μg/m3 (53) 53.0
 
April 3, 2020, noon N/A N/A N/A N/A N/A 19.0 ppb (27) 19.0 ppb (15) 1.5 ppb (17) 38.0 μg/m3 (35) 17.6 μg/m3 (62) 62.0
 
April 3, 2020, 11 a.m. N/A N/A N/A N/A N/A 19.0 ppb (27) 21.0 ppb (16) 1.48 ppb (16) 31.0 μg/m3 (28) 26.6 μg/m3 (81) 81.0
 
April 3, 2020, 10 a.m. N/A N/A N/A N/A N/A 19.0 ppb (27) 23.0 ppb (18) 1.49 ppb (17) 35.0 μg/m3 (32) 17.8 μg/m3 (62) 62.0
 
April 3, 2020, 9 a.m. N/A N/A N/A N/A N/A 19.0 ppb (27) 26.0 ppb (20) 1.49 ppb (17) 35.0 μg/m3 (32) 25.4 μg/m3 (79) 79.0
 
April 3, 2020, 8 a.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 25.0 ppb (19) 1.53 ppb (17) 38.0 μg/m3 (35) 21.0 μg/m3 (69) 69.0
 
April 3, 2020, 7 a.m. N/A N/A N/A N/A N/A 19.0 ppb (27) 21.0 ppb (16) 1.56 ppb (17) 41.0 μg/m3 (37) 25.6 μg/m3 (79) 79.0
 
April 3, 2020, 6 a.m. N/A N/A N/A N/A N/A 19.0 ppb (27) 29.0 ppb (22) 1.55 ppb (17) 53.0 μg/m3 (48) 28.9 μg/m3 (86) 86.0
 
April 3, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 26.2 μg/m3 (80) 80.0
 
April 3, 2020, 4 a.m. N/A N/A N/A N/A N/A 19.0 ppb (27) 36.0 ppb (28) 1.6 ppb (18) 76.0 μg/m3 (60) 34.5 μg/m3 (98) 98.0
 
April 3, 2020, 3 a.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 32.0 ppb (25) 1.82 ppb (20) 87.0 μg/m3 (66) 37.1 μg/m3 (104) 104.0
 
April 3, 2020, 2 a.m. N/A N/A N/A N/A N/A 19.0 ppb (27) 35.0 ppb (27) 1.82 ppb (20) 82.0 μg/m3 (64) 48.9 μg/m3 (134) 134.0
 
April 3, 2020, 1 a.m. N/A N/A N/A N/A N/A 19.0 ppb (27) 53.0 ppb (41) 1.55 ppb (17) 48.0 μg/m3 (44) 20.3 μg/m3 (68) 68.0
 
April 3, 2020, midnight N/A N/A N/A N/A N/A 19.0 ppb (27) 59.0 ppb (45) 1.53 ppb (17) 31.0 μg/m3 (28) 12.9 μg/m3 (52) 52.0
 
April 2, 2020, 11 p.m. N/A N/A N/A N/A N/A 19.0 ppb (27) 57.0 ppb (44) 1.52 ppb (17) 28.0 μg/m3 (25) 14.8 μg/m3 (56) 56.0
 
April 2, 2020, 10 p.m. N/A N/A N/A N/A N/A 19.0 ppb (27) 56.0 ppb (43) 1.55 ppb (17) 19.0 μg/m3 (17) 28.5 μg/m3 (85) 85.0
 
April 2, 2020, 9 p.m. N/A N/A N/A N/A N/A 19.0 ppb (27) 57.0 ppb (44) 1.56 ppb (17) N/A N/A 44.0
 
April 2, 2020, 8 p.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 55.0 ppb (42) 1.64 ppb (18) 160.0 μg/m3 (102) 24.4 μg/m3 (76) 102.0
 
April 2, 2020, 7 p.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 54.0 ppb (42) 1.52 ppb (17) 86.0 μg/m3 (66) 19.2 μg/m3 (65) 66.0
 
April 2, 2020, 6 p.m. N/A N/A N/A N/A N/A 15.0 ppb (21) 52.0 ppb (40) 1.57 ppb (17) 23.0 μg/m3 (21) 18.5 μg/m3 (64) 64.0
 
April 2, 2020, 5 p.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 51.0 ppb (39) 1.54 ppb (17) 20.0 μg/m3 (18) 18.4 μg/m3 (64) 64.0
 
April 2, 2020, 4 p.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 39.0 ppb (30) 1.61 ppb (18) 26.0 μg/m3 (24) 24.1 μg/m3 (76) 76.0
 
April 2, 2020, 3 p.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 29.0 ppb (22) 1.63 ppb (18) 27.0 μg/m3 (25) 10.0 μg/m3 (42) 42.0
 
April 2, 2020, 2 p.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 17.0 ppb (13) 1.66 ppb (18) 42.0 μg/m3 (38) 11.6 μg/m3 (48) 48.0
 
April 2, 2020, 1 p.m. N/A N/A N/A N/A N/A 19.0 ppb (27) 19.0 ppb (15) 1.58 ppb (18) 25.0 μg/m3 (23) 12.3 μg/m3 (51) 51.0
 
April 2, 2020, noon N/A N/A N/A N/A N/A 20.0 ppb (29) 21.0 ppb (16) 1.49 ppb (17) 29.0 μg/m3 (26) 21.3 μg/m3 (70) 70.0
 
April 2, 2020, 11 a.m. N/A N/A N/A N/A N/A 19.0 ppb (27) 21.0 ppb (16) 1.49 ppb (17) 22.0 μg/m3 (20) 33.9 μg/m3 (97) 97.0
 
April 2, 2020, 10 a.m. N/A N/A N/A N/A N/A 19.0 ppb (27) 25.0 ppb (19) 1.49 ppb (17) 26.0 μg/m3 (24) 17.2 μg/m3 (61) 61.0
 
April 2, 2020, 9 a.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 26.0 ppb (20) 1.51 ppb (17) 32.0 μg/m3 (29) 24.9 μg/m3 (77) 77.0
 
April 2, 2020, 8 a.m. N/A N/A N/A N/A N/A 25.0 ppb (36) 29.0 ppb (22) 1.5 ppb (17) 37.0 μg/m3 (34) 24.5 μg/m3 (77) 77.0
 
April 2, 2020, 7 a.m. N/A N/A N/A N/A N/A 19.0 ppb (27) 29.0 ppb (22) 1.54 ppb (17) 55.0 μg/m3 (50) 42.1 μg/m3 (116) 116.0
 
April 2, 2020, 6 a.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 30.0 ppb (23) 1.61 ppb (18) 50.0 μg/m3 (45) 21.7 μg/m3 (71) 71.0
 
April 2, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 52.2 μg/m3 (142) 142.0
 
April 2, 2020, 4 a.m. N/A N/A N/A N/A N/A 19.0 ppb (27) 34.0 ppb (26) 1.61 ppb (18) 56.0 μg/m3 (50) 27.1 μg/m3 (82) 82.0
 
April 2, 2020, 3 a.m. N/A N/A N/A N/A N/A 19.0 ppb (27) 42.0 ppb (32) 1.61 ppb (18) 61.0 μg/m3 (53) N/A 53.0
 
April 2, 2020, 2 a.m. N/A N/A N/A N/A N/A 19.0 ppb (27) 47.0 ppb (36) 1.63 ppb (18) 78.0 μg/m3 (62) 24.8 μg/m3 (77) 77.0
 
April 2, 2020, 1 a.m. N/A N/A N/A N/A N/A 19.0 ppb (27) 56.0 ppb (43) 1.6 ppb (18) 63.0 μg/m3 (54) 15.6 μg/m3 (58) 58.0
 
April 2, 2020, midnight N/A N/A N/A N/A N/A 18.0 ppb (26) 60.0 ppb (46) 1.54 ppb (17) 42.0 μg/m3 (38) 16.8 μg/m3 (60) 60.0
 
April 1, 2020, 11 p.m. N/A N/A N/A N/A N/A 17.0 ppb (24) 59.0 ppb (45) 1.55 ppb (17) 29.0 μg/m3 (26) 18.3 μg/m3 (63) 63.0
 
April 1, 2020, 10 p.m. N/A N/A N/A N/A N/A 18.0 ppb (26) 56.0 ppb (43) 1.6 ppb (18) 16.0 μg/m3 (15) 14.9 μg/m3 (56) 56.0
 
April 1, 2020, 9 p.m. N/A N/A N/A N/A N/A 18.0 ppb (26) 58.0 ppb (45) 1.59 ppb (18) 10.0 μg/m3 (9) 22.6 μg/m3 (73) 73.0
 
April 1, 2020, 8 p.m. N/A N/A N/A N/A N/A 18.0 ppb (26) 56.0 ppb (43) 1.61 ppb (18) 10.0 μg/m3 (9) 29.6 μg/m3 (87) 87.0
 
April 1, 2020, 7 p.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 55.0 ppb (42) 1.57 ppb (17) 45.0 μg/m3 (41) 34.9 μg/m3 (99) 99.0
 
April 1, 2020, 6 p.m. N/A N/A N/A N/A N/A 21.0 ppb (30) 50.0 ppb (38) 1.62 ppb (18) 33.0 μg/m3 (30) 43.5 μg/m3 (120) 120.0
 
April 1, 2020, 5 p.m. N/A N/A N/A N/A N/A 22.0 ppb (31) 40.0 ppb (31) 1.7 ppb (19) 36.0 μg/m3 (33) 39.8 μg/m3 (111) 111.0
 
April 1, 2020, 4 p.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 31.0 ppb (24) 1.76 ppb (20) 57.0 μg/m3 (51) 57.1 μg/m3 (151) 151.0
 
April 1, 2020, 3 p.m. N/A N/A N/A N/A N/A 24.0 ppb (34) 14.0 ppb (11) 1.92 ppb (21) 85.0 μg/m3 (65) 50.0 μg/m3 (136) 136.0
 
April 1, 2020, 2 p.m. N/A N/A N/A N/A N/A 21.0 ppb (30) 4.0 ppb (3) 1.92 ppb (21) 59.0 μg/m3 (52) 28.8 μg/m3 (86) 86.0
 
April 1, 2020, 1 p.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 20.0 ppb (15) 1.67 ppb (19) 36.0 μg/m3 (33) 28.8 μg/m3 (86) 86.0
 
April 1, 2020, noon N/A N/A N/A N/A N/A 16.0 ppb (23) 28.0 ppb (22) 1.56 ppb (17) 40.0 μg/m3 (36) 27.4 μg/m3 (83) 83.0
 
April 1, 2020, 11 a.m. N/A N/A N/A N/A N/A 21.0 ppb (30) 30.0 ppb (23) 1.54 ppb (17) 36.0 μg/m3 (33) 33.3 μg/m3 (95) 95.0
 
April 1, 2020, 10 a.m. N/A N/A N/A N/A N/A 21.0 ppb (30) 32.0 ppb (25) 1.53 ppb (17) 37.0 μg/m3 (34) 36.7 μg/m3 (103) 103.0
 
April 1, 2020, 9 a.m. N/A N/A N/A N/A N/A 18.0 ppb (26) 33.0 ppb (25) 1.53 ppb (17) 41.0 μg/m3 (37) 19.0 μg/m3 (65) 65.0
 
April 1, 2020, 8 a.m. N/A N/A N/A N/A N/A 15.0 ppb (21) 36.0 ppb (28) 1.54 ppb (17) 48.0 μg/m3 (44) 27.1 μg/m3 (82) 82.0
 
April 1, 2020, 7 a.m. N/A N/A N/A N/A N/A 17.0 ppb (24) 34.0 ppb (26) 1.56 ppb (17) 53.0 μg/m3 (48) 30.4 μg/m3 (89) 89.0
 
April 1, 2020, 6 a.m. N/A N/A N/A N/A N/A 17.0 ppb (24) 37.0 ppb (28) 1.57 ppb (17) 123.0 μg/m3 (84) 32.8 μg/m3 (94) 94.0
 
April 1, 2020, 4 a.m. N/A N/A N/A N/A N/A 28.0 ppb (40) 31.0 ppb (24) 1.68 ppb (19) 83.0 μg/m3 (64) 37.2 μg/m3 (104) 104.0
 
April 1, 2020, 3 a.m. N/A N/A N/A N/A N/A 55.0 ppb (59) 36.0 ppb (28) 1.86 ppb (21) 120.0 μg/m3 (82) 53.3 μg/m3 (144) 144.0
 
April 1, 2020, 2 a.m. N/A N/A N/A N/A N/A 30.0 ppb (43) 47.0 ppb (36) 2.48 ppb (28) 118.0 μg/m3 (82) 23.7 μg/m3 (75) 82.0
 
April 1, 2020, 1 a.m. N/A N/A N/A N/A N/A 21.0 ppb (30) 54.0 ppb (42) 1.62 ppb (18) 56.0 μg/m3 (50) 23.8 μg/m3 (75) 75.0
 
April 1, 2020, midnight N/A N/A N/A N/A N/A 22.0 ppb (31) 56.0 ppb (43) 1.67 ppb (19) 41.0 μg/m3 (37) 24.2 μg/m3 (76) 76.0
 
March 31, 2020, 11 p.m. N/A N/A N/A N/A N/A 19.0 ppb (27) 56.0 ppb (43) 1.63 ppb (18) 35.0 μg/m3 (32) 14.2 μg/m3 (55) 55.0
 
March 31, 2020, 10 p.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 57.0 ppb (44) 1.65 ppb (18) 31.0 μg/m3 (28) 11.5 μg/m3 (48) 48.0
 
March 31, 2020, 9 p.m. N/A N/A N/A N/A N/A 23.0 ppb (33) 57.0 ppb (44) 1.64 ppb (18) 9.0 μg/m3 (8) 21.2 μg/m3 (70) 70.0
 
March 31, 2020, 8 p.m. N/A N/A N/A N/A N/A 28.0 ppb (40) 59.0 ppb (45) 1.62 ppb (18) 12.0 μg/m3 (11) 20.9 μg/m3 (69) 69.0
 
March 31, 2020, 7 p.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 52.0 ppb (40) 1.59 ppb (18) 28.0 μg/m3 (25) 19.0 μg/m3 (65) 65.0
 
March 31, 2020, 6 p.m. N/A N/A N/A N/A N/A 18.0 ppb (26) 49.0 ppb (38) 1.57 ppb (17) 20.0 μg/m3 (18) 30.3 μg/m3 (89) 89.0
 
March 31, 2020, 5 p.m. N/A N/A N/A N/A N/A 18.0 ppb (26) 46.0 ppb (35) 1.57 ppb (17) 22.0 μg/m3 (20) 17.1 μg/m3 (61) 61.0
 
March 31, 2020, 4 p.m. N/A N/A N/A N/A N/A 18.0 ppb (26) 38.0 ppb (29) 1.62 ppb (18) 28.0 μg/m3 (25) 17.3 μg/m3 (61) 61.0
 
March 31, 2020, 3 p.m. N/A N/A N/A N/A N/A 17.0 ppb (24) 27.0 ppb (21) 1.64 ppb (18) 40.0 μg/m3 (36) 21.6 μg/m3 (70) 70.0
 
March 31, 2020, 2 p.m. N/A N/A N/A N/A N/A 17.0 ppb (24) 15.0 ppb (12) 1.71 ppb (19) 45.0 μg/m3 (41) 7.8 μg/m3 (32) 41.0
 
March 31, 2020, 1 p.m. N/A N/A N/A N/A N/A 17.0 ppb (24) 9.0 ppb (7) 1.61 ppb (18) 40.0 μg/m3 (36) 4.6 μg/m3 (19) 36.0
 
March 31, 2020, noon N/A N/A N/A N/A N/A 15.0 ppb (21) 17.0 ppb (13) 1.51 ppb (17) 30.0 μg/m3 (27) 17.3 μg/m3 (61) 61.0
 
March 31, 2020, 11 a.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 24.0 ppb (18) 1.49 ppb (17) 27.0 μg/m3 (25) 12.0 μg/m3 (50) 50.0
 
March 31, 2020, 10 a.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 27.0 ppb (21) 1.49 ppb (17) 25.0 μg/m3 (23) 12.0 μg/m3 (50) 50.0
 
March 31, 2020, 9 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 29.0 ppb (22) 1.48 ppb (16) 25.0 μg/m3 (23) 14.4 μg/m3 (55) 55.0
 
March 31, 2020, 8 a.m. N/A N/A N/A N/A N/A 12.0 ppb (17) 24.0 ppb (18) 1.5 ppb (17) 39.0 μg/m3 (35) 12.5 μg/m3 (51) 51.0
 
March 31, 2020, 7 a.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 21.0 ppb (16) 1.54 ppb (17) 38.0 μg/m3 (35) 12.1 μg/m3 (50) 50.0
 
March 31, 2020, 6 a.m. N/A N/A N/A N/A N/A 12.0 ppb (17) 28.0 ppb (22) 1.51 ppb (17) 37.0 μg/m3 (34) 13.9 μg/m3 (54) 54.0
 
March 31, 2020, 5 a.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 29.0 ppb (22) 1.54 ppb (17) 58.0 μg/m3 (52) 26.1 μg/m3 (80) 80.0
 
March 31, 2020, 4 a.m. N/A N/A N/A N/A N/A 13.0 ppb (19) 28.0 ppb (22) 1.75 ppb (19) 93.0 μg/m3 (69) 34.7 μg/m3 (98) 98.0
 
March 31, 2020, 3 a.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 6.0 ppb (5) 2.22 ppb (25) 92.0 μg/m3 (68) 27.2 μg/m3 (82) 82.0
 
March 31, 2020, 2 a.m. N/A N/A N/A N/A N/A 15.0 ppb (21) 39.0 ppb (30) 1.87 ppb (21) 65.0 μg/m3 (55) 17.1 μg/m3 (61) 61.0
 
March 31, 2020, 1 a.m. N/A N/A N/A N/A N/A 15.0 ppb (21) 60.0 ppb (46) 1.58 ppb (18) 50.0 μg/m3 (45) 21.7 μg/m3 (71) 71.0
 
March 31, 2020, midnight N/A N/A N/A N/A N/A 16.0 ppb (23) 61.0 ppb (47) 1.56 ppb (17) 40.0 μg/m3 (36) 17.5 μg/m3 (62) 62.0
 
March 30, 2020, 11 p.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 62.0 ppb (48) 1.6 ppb (18) 29.0 μg/m3 (26) 21.3 μg/m3 (70) 70.0
 
March 30, 2020, 10 p.m. N/A N/A N/A N/A N/A 19.0 ppb (27) 61.0 ppb (47) 1.61 ppb (18) 23.0 μg/m3 (21) 20.4 μg/m3 (68) 68.0
 
March 30, 2020, 9 p.m. N/A N/A N/A N/A N/A 19.0 ppb (27) 61.0 ppb (47) 1.65 ppb (18) 14.0 μg/m3 (13) 25.4 μg/m3 (79) 79.0
 
March 30, 2020, 8 p.m. N/A N/A N/A N/A N/A 17.0 ppb (24) 60.0 ppb (46) 1.73 ppb (19) 22.0 μg/m3 (20) 29.6 μg/m3 (87) 87.0
 
March 30, 2020, 7 p.m. N/A N/A N/A N/A N/A 18.0 ppb (26) 58.0 ppb (45) 1.66 ppb (18) 39.0 μg/m3 (35) 39.9 μg/m3 (111) 111.0
 
March 30, 2020, 6 p.m. N/A N/A N/A N/A N/A 26.0 ppb (37) 58.0 ppb (45) 1.75 ppb (19) 35.0 μg/m3 (32) 32.2 μg/m3 (93) 93.0
 
March 30, 2020, 5 p.m. N/A N/A N/A N/A N/A 21.0 ppb (30) 43.0 ppb (33) 1.71 ppb (19) 44.0 μg/m3 (40) 32.8 μg/m3 (94) 94.0
 
March 30, 2020, 4 p.m. N/A N/A N/A N/A N/A 24.0 ppb (34) 31.0 ppb (24) 1.75 ppb (19) 50.0 μg/m3 (45) 51.3 μg/m3 (140) 140.0
 
March 30, 2020, 3 p.m. N/A N/A N/A N/A N/A 23.0 ppb (33) 14.0 ppb (11) 1.93 ppb (21) 68.0 μg/m3 (56) 47.1 μg/m3 (129) 129.0
 
March 30, 2020, 2 p.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 4.0 ppb (3) 2.01 ppb (22) 73.0 μg/m3 (59) 43.3 μg/m3 (120) 120.0
 
March 30, 2020, 1 p.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 7.0 ppb (5) 1.76 ppb (20) 48.0 μg/m3 (44) 33.9 μg/m3 (97) 97.0
 
March 30, 2020, noon N/A N/A N/A N/A N/A 14.0 ppb (20) 29.0 ppb (22) 1.58 ppb (18) 36.0 μg/m3 (33) 39.2 μg/m3 (109) 109.0
 
March 30, 2020, 11 a.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 33.0 ppb (25) 1.56 ppb (17) 38.0 μg/m3 (35) 33.0 μg/m3 (95) 95.0
 
March 30, 2020, 10 a.m. N/A N/A N/A N/A N/A 20.0 ppb (29) 28.0 ppb (22) 1.54 ppb (17) 39.0 μg/m3 (35) 35.8 μg/m3 (101) 101.0
 
March 30, 2020, 9 a.m. N/A N/A N/A N/A N/A 18.0 ppb (26) 29.0 ppb (22) 1.55 ppb (17) 39.0 μg/m3 (35) 19.3 μg/m3 (66) 66.0
 
March 30, 2020, 8 a.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 32.0 ppb (25) 1.55 ppb (17) 41.0 μg/m3 (37) 33.0 μg/m3 (95) 95.0
 
March 30, 2020, 7 a.m. N/A N/A N/A N/A N/A 15.0 ppb (21) 37.0 ppb (28) 1.57 ppb (17) 48.0 μg/m3 (44) 32.0 μg/m3 (93) 93.0
 
March 30, 2020, 6 a.m. N/A N/A N/A N/A N/A 15.0 ppb (21) 36.0 ppb (28) 1.58 ppb (18) 62.0 μg/m3 (54) 47.1 μg/m3 (129) 129.0
 
March 30, 2020, 5 a.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 33.0 ppb (25) 1.62 ppb (18) 87.0 μg/m3 (66) 50.2 μg/m3 (137) 137.0
 
March 30, 2020, 4 a.m. N/A N/A N/A N/A N/A 15.0 ppb (21) 34.0 ppb (26) 1.66 ppb (18) 151.0 μg/m3 (98) 36.9 μg/m3 (104) 104.0
 
March 30, 2020, 3 a.m. N/A N/A N/A N/A N/A 18.0 ppb (26) 34.0 ppb (26) 1.7 ppb (19) 134.0 μg/m3 (90) 66.3 μg/m3 (156) 156.0
 
March 30, 2020, 2 a.m. N/A N/A N/A N/A N/A 19.0 ppb (27) 36.0 ppb (28) 1.84 ppb (20) 93.0 μg/m3 (69) 27.5 μg/m3 (83) 83.0
 
March 30, 2020, 1 a.m. N/A N/A N/A N/A N/A 15.0 ppb (21) 57.0 ppb (44) 1.73 ppb (19) 59.0 μg/m3 (52) 46.7 μg/m3 (128) 128.0
 
March 30, 2020, midnight N/A N/A N/A N/A N/A 16.0 ppb (23) 60.0 ppb (46) 1.68 ppb (19) 40.0 μg/m3 (36) 18.9 μg/m3 (65) 65.0
 
March 29, 2020, 11 p.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 59.0 ppb (45) 1.66 ppb (18) 27.0 μg/m3 (25) 19.0 μg/m3 (65) 65.0
 
March 29, 2020, 10 p.m. N/A N/A N/A N/A N/A 17.0 ppb (24) 60.0 ppb (46) 1.69 ppb (19) 31.0 μg/m3 (28) 30.8 μg/m3 (90) 90.0
 
March 29, 2020, 9 p.m. N/A N/A N/A N/A N/A 18.0 ppb (26) 59.0 ppb (45) 1.73 ppb (19) 24.0 μg/m3 (22) 101.6 μg/m3 (174) 174.0
 
March 29, 2020, 8 p.m. N/A N/A N/A N/A N/A 19.0 ppb (27) 59.0 ppb (45) 1.73 ppb (19) 30.0 μg/m3 (27) 74.8 μg/m3 (160) 160.0
 
March 29, 2020, 7 p.m. N/A N/A N/A N/A N/A 17.0 ppb (24) 56.0 ppb (43) 1.78 ppb (20) 61.0 μg/m3 (53) 66.6 μg/m3 (156) 156.0
 
March 29, 2020, 6 p.m. N/A N/A N/A N/A N/A 18.0 ppb (26) 49.0 ppb (38) 1.81 ppb (20) 44.0 μg/m3 (40) 38.6 μg/m3 (108) 108.0
 
March 29, 2020, 5 p.m. N/A N/A N/A N/A N/A 17.0 ppb (24) 46.0 ppb (35) 1.74 ppb (19) 58.0 μg/m3 (52) 52.7 μg/m3 (143) 143.0
 
March 29, 2020, 4 p.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 41.0 ppb (32) 1.78 ppb (20) 64.0 μg/m3 (54) 36.1 μg/m3 (102) 102.0
 
March 29, 2020, 3 p.m. N/A N/A N/A N/A N/A 17.0 ppb (24) 35.0 ppb (27) 1.73 ppb (19) 60.0 μg/m3 (52) 34.9 μg/m3 (99) 99.0
 
March 29, 2020, 2 p.m. N/A N/A N/A N/A N/A 26.0 ppb (37) 30.0 ppb (23) 1.7 ppb (19) 63.0 μg/m3 (54) 34.3 μg/m3 (97) 97.0
 
March 29, 2020, 1 p.m. N/A N/A N/A N/A N/A 32.0 ppb (46) 28.0 ppb (22) 1.6 ppb (18) 54.0 μg/m3 (49) 30.8 μg/m3 (90) 90.0
 
March 29, 2020, noon N/A N/A N/A N/A N/A 28.0 ppb (40) 28.0 ppb (22) 1.55 ppb (17) 53.0 μg/m3 (48) 36.1 μg/m3 (102) 102.0
 
March 29, 2020, 11 a.m. N/A N/A N/A N/A N/A 19.0 ppb (27) 31.0 ppb (24) 1.54 ppb (17) 47.0 μg/m3 (43) 47.6 μg/m3 (130) 130.0
 
March 29, 2020, 10 a.m. N/A N/A N/A N/A N/A 15.0 ppb (21) 27.0 ppb (21) 1.59 ppb (18) 39.0 μg/m3 (35) 21.2 μg/m3 (70) 70.0
 
March 29, 2020, 9 a.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 22.0 ppb (17) 1.64 ppb (18) 46.0 μg/m3 (42) 19.6 μg/m3 (66) 66.0
 
March 29, 2020, 8 a.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 9.0 ppb (7) 1.7 ppb (19) 66.0 μg/m3 (56) 31.7 μg/m3 (92) 92.0
 
March 29, 2020, 7 a.m. N/A N/A N/A N/A N/A 15.0 ppb (21) 11.0 ppb (8) 1.78 ppb (20) 50.0 μg/m3 (45) 6.3 μg/m3 (26) 45.0
 
March 29, 2020, 6 a.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 21.0 ppb (16) 1.73 ppb (19) 49.0 μg/m3 (45) 16.6 μg/m3 (60) 60.0
 
March 29, 2020, 5 a.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 29.0 ppb (22) 1.54 ppb (17) 65.0 μg/m3 (55) 23.4 μg/m3 (74) 74.0
 
March 29, 2020, 4 a.m. N/A N/A N/A N/A N/A 14.0 ppb (20) 31.0 ppb (24) 1.66 ppb (18) 89.0 μg/m3 (67) 28.3 μg/m3 (85) 85.0
 
March 29, 2020, 3 a.m. N/A N/A N/A N/A N/A 15.0 ppb (21) 19.0 ppb (15) 2.28 ppb (25) 100.0 μg/m3 (72) 21.6 μg/m3 (70) 72.0
 
March 29, 2020, 2 a.m. N/A N/A N/A N/A N/A 15.0 ppb (21) 36.0 ppb (28) 1.85 ppb (21) 69.0 μg/m3 (57) 12.7 μg/m3 (51) 57.0
 
March 29, 2020, 1 a.m. N/A N/A N/A N/A N/A 15.0 ppb (21) 51.0 ppb (39) 1.55 ppb (17) 111.0 μg/m3 (78) 9.2 μg/m3 (38) 78.0
 
March 29, 2020, midnight N/A N/A N/A N/A N/A 15.0 ppb (21) 55.0 ppb (42) 1.51 ppb (17) 60.0 μg/m3 (52) 8.4 μg/m3 (35) 52.0
 
March 28, 2020, 11 p.m. N/A N/A N/A N/A N/A 15.0 ppb (21) 53.0 ppb (41) 1.5 ppb (17) 25.0 μg/m3 (23) 12.0 μg/m3 (50) 50.0
 
March 28, 2020, 10 p.m. N/A N/A N/A N/A N/A 15.0 ppb (21) 53.0 ppb (41) 1.54 ppb (17) 14.0 μg/m3 (13) 13.0 μg/m3 (52) 52.0
 
March 28, 2020, 9 p.m. N/A N/A N/A N/A N/A 15.0 ppb (21) 53.0 ppb (41) 1.51 ppb (17) 15.0 μg/m3 (14) 10.4 μg/m3 (43) 43.0
 
March 28, 2020, 8 p.m. N/A N/A N/A N/A N/A 15.0 ppb (21) 47.0 ppb (36) 1.58 ppb (18) 44.0 μg/m3 (40) 16.5 μg/m3 (60) 60.0
 
March 28, 2020, 7 p.m. N/A N/A N/A N/A N/A 16.0 ppb (23) 45.0 ppb (35) 1.59 ppb (18) 170.0 μg/m3 (108) 21.3 μg/m3 (70) 108.0