ID: 235

AQSQID: 060990005

Site Name: Modesto - 14th Street

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

Updated: Sept. 29, 2020, 11:40 p.m.

Location: Modesto (Downtown), CA

Reporting: True, Located: True

Current AQI: 92.0

Modesto (Downtown) CA, US: 37.642165, -120.994212

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 29, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 81.0 ppb (63) 0.29 ppb (3) 139.8 μg/m3 (92) 19.0 μg/m3 (65) 92.0
 
Sept. 29, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 81.0 ppb (63) 0.31 ppb (3) 120.5 μg/m3 (83) 21.0 μg/m3 (69) 83.0
 
Sept. 29, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 80.0 ppb (62) 0.32 ppb (4) 91.0 μg/m3 (68) 18.0 μg/m3 (63) 68.0
 
Sept. 29, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 73.0 ppb (57) 0.32 ppb (4) 101.0 μg/m3 (73) 22.0 μg/m3 (71) 73.0
 
Sept. 29, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) 0.33 ppb (4) 113.2 μg/m3 (79) 21.0 μg/m3 (69) 79.0
 
Sept. 29, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) 0.4 ppb (4) 115.4 μg/m3 (80) 20.0 μg/m3 (67) 80.0
 
Sept. 29, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) 0.52 ppb (6) 124.6 μg/m3 (85) 23.0 μg/m3 (73) 85.0
 
Sept. 29, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) 0.56 ppb (6) 116.5 μg/m3 (81) 19.0 μg/m3 (65) 81.0
 
Sept. 29, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) 0.53 ppb (6) 123.2 μg/m3 (84) 21.0 μg/m3 (69) 84.0
 
Sept. 29, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) 0.39 ppb (4) 106.3 μg/m3 (76) 15.0 μg/m3 (56) 76.0
 
Sept. 29, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 91.1 μg/m3 (68) 16.0 μg/m3 (59) 68.0
 
Sept. 29, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) 0.37 ppb (4) 89.7 μg/m3 (67) 14.0 μg/m3 (54) 67.0
 
Sept. 29, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) 0.34 ppb (4) 98.9 μg/m3 (72) 15.0 μg/m3 (56) 72.0
 
Sept. 29, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) 0.37 ppb (4) 102.5 μg/m3 (74) 20.0 μg/m3 (67) 74.0
 
Sept. 29, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) 0.48 ppb (5) 110.3 μg/m3 (78) 29.0 μg/m3 (86) 86.0
 
Sept. 29, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) 0.74 ppb (8) 111.2 μg/m3 (78) 25.0 μg/m3 (78) 78.0
 
Sept. 29, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) 0.94 ppb (10) 115.7 μg/m3 (80) 22.0 μg/m3 (71) 80.0
 
Sept. 29, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) 1.11 ppb (12) 122.1 μg/m3 (84) 27.0 μg/m3 (82) 84.0
 
Sept. 29, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) 1.09 ppb (12) 118.8 μg/m3 (82) 27.0 μg/m3 (82) 82.0
 
Sept. 29, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) 0.89 ppb (10) 99.5 μg/m3 (72) 21.0 μg/m3 (69) 72.0
 
Sept. 29, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) 0.87 ppb (10) 93.2 μg/m3 (69) 22.0 μg/m3 (71) 71.0
 
Sept. 29, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (50) 0.33 ppb (4) 82.2 μg/m3 (64) 17.0 μg/m3 (61) 64.0
 
Sept. 29, 2020, midnight N/A N/A N/A N/A N/A N/A 79.0 ppb (62) 0.28 ppb (3) 81.9 μg/m3 (63) 26.0 μg/m3 (80) 80.0
 
Sept. 28, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 75.0 ppb (58) 0.25 ppb (3) 86.1 μg/m3 (66) 32.0 μg/m3 (93) 93.0
 
Sept. 28, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (52) 0.24 ppb (3) 82.1 μg/m3 (64) 25.0 μg/m3 (78) 78.0
 
Sept. 28, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) 0.24 ppb (3) 102.9 μg/m3 (74) 47.0 μg/m3 (129) 129.0
 
Sept. 28, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) 0.22 ppb (2) 99.2 μg/m3 (72) 44.0 μg/m3 (121) 121.0
 
Sept. 28, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) 0.21 ppb (2) 117.1 μg/m3 (81) 14.0 μg/m3 (54) 81.0
 
Sept. 28, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) 0.23 ppb (3) 102.5 μg/m3 (74) 16.0 μg/m3 (59) 74.0
 
Sept. 28, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) 0.26 ppb (3) 89.0 μg/m3 (67) 16.0 μg/m3 (59) 67.0
 
Sept. 28, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) 0.26 ppb (3) 136.4 μg/m3 (91) 18.0 μg/m3 (63) 91.0
 
Sept. 28, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) 0.24 ppb (3) 83.1 μg/m3 (64) 16.0 μg/m3 (59) 64.0
 
Sept. 28, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) 0.29 ppb (3) 67.9 μg/m3 (56) 17.0 μg/m3 (61) 61.0
 
Sept. 28, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) 0.26 ppb (3) 45.6 μg/m3 (41) 17.0 μg/m3 (61) 61.0
 
Sept. 28, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 50.1 μg/m3 (46) 15.0 μg/m3 (56) 56.0
 
Sept. 28, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) 0.26 ppb (3) 65.6 μg/m3 (55) 18.0 μg/m3 (63) 63.0
 
Sept. 28, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) 0.27 ppb (3) 66.2 μg/m3 (56) 14.0 μg/m3 (54) 56.0
 
Sept. 28, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) 0.55 ppb (6) 49.2 μg/m3 (45) 18.0 μg/m3 (63) 63.0
 
Sept. 28, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) 0.55 ppb (6) 51.3 μg/m3 (47) 15.0 μg/m3 (56) 56.0
 
Sept. 28, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) 0.62 ppb (7) 52.5 μg/m3 (48) 15.0 μg/m3 (56) 56.0
 
Sept. 28, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) 0.59 ppb (7) 51.3 μg/m3 (47) 19.0 μg/m3 (65) 65.0
 
Sept. 28, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) 0.42 ppb (5) 51.0 μg/m3 (46) 16.0 μg/m3 (59) 59.0
 
Sept. 28, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) 0.64 ppb (7) 67.0 μg/m3 (56) 14.0 μg/m3 (54) 56.0
 
Sept. 28, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) 0.58 ppb (6) 54.5 μg/m3 (50) 12.0 μg/m3 (50) 50.0
 
Sept. 28, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) 0.34 ppb (4) 56.1 μg/m3 (51) 13.0 μg/m3 (52) 52.0
 
Sept. 28, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) 0.23 ppb (3) 60.3 μg/m3 (53) 7.0 μg/m3 (29) 53.0
 
Sept. 28, 2020, midnight N/A N/A N/A N/A N/A N/A 52.0 ppb (40) 0.19 ppb (2) 51.6 μg/m3 (47) 10.0 μg/m3 (42) 47.0
 
Sept. 27, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) 0.19 ppb (2) 51.4 μg/m3 (47) 10.0 μg/m3 (42) 47.0
 
Sept. 27, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) 0.18 ppb (2) 62.5 μg/m3 (54) 8.0 μg/m3 (33) 54.0
 
Sept. 27, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) 0.18 ppb (2) 70.5 μg/m3 (58) 9.0 μg/m3 (38) 58.0
 
Sept. 27, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) 0.17 ppb (2) 80.2 μg/m3 (63) 8.0 μg/m3 (33) 63.0
 
Sept. 27, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) 0.16 ppb (2) 81.6 μg/m3 (63) 11.0 μg/m3 (46) 63.0
 
Sept. 27, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) 0.16 ppb (2) 105.0 μg/m3 (75) 13.0 μg/m3 (52) 75.0
 
Sept. 27, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) 0.15 ppb (2) 108.5 μg/m3 (77) 9.0 μg/m3 (38) 77.0
 
Sept. 27, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) 0.15 ppb (2) 126.2 μg/m3 (86) 13.0 μg/m3 (52) 86.0
 
Sept. 27, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) 0.16 ppb (2) 146.2 μg/m3 (96) 13.0 μg/m3 (52) 96.0
 
Sept. 27, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) 0.15 ppb (2) 187.4 μg/m3 (116) 11.0 μg/m3 (46) 116.0
 
Sept. 27, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) 0.14 ppb (2) 203.6 μg/m3 (124) 9.0 μg/m3 (38) 124.0
 
Sept. 27, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 174.8 μg/m3 (110) 15.0 μg/m3 (56) 110.0
 
Sept. 27, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) 0.18 ppb (2) 122.5 μg/m3 (84) 12.0 μg/m3 (50) 84.0
 
Sept. 27, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) 0.21 ppb (2) 75.0 μg/m3 (60) 16.0 μg/m3 (59) 60.0
 
Sept. 27, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) 0.22 ppb (2) 32.6 μg/m3 (30) 9.0 μg/m3 (38) 38.0
 
Sept. 27, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) 0.19 ppb (2) 22.6 μg/m3 (21) 6.0 μg/m3 (25) 25.0
 
Sept. 27, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) 0.21 ppb (2) 25.0 μg/m3 (23) 4.0 μg/m3 (17) 23.0
 
Sept. 27, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) 0.22 ppb (2) 21.9 μg/m3 (20) 6.0 μg/m3 (25) 25.0
 
Sept. 27, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) 0.26 ppb (3) 20.4 μg/m3 (19) 6.0 μg/m3 (25) 25.0
 
Sept. 27, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) 0.25 ppb (3) 32.4 μg/m3 (29) 7.0 μg/m3 (29) 29.0
 
Sept. 27, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) 0.27 ppb (3) 38.5 μg/m3 (35) 14.0 μg/m3 (54) 54.0
 
Sept. 27, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) 0.32 ppb (4) 47.9 μg/m3 (44) 24.0 μg/m3 (76) 76.0
 
Sept. 27, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) 0.37 ppb (4) 64.8 μg/m3 (55) 33.0 μg/m3 (95) 95.0
 
Sept. 27, 2020, midnight N/A N/A N/A N/A N/A N/A 52.0 ppb (40) 0.39 ppb (4) 81.8 μg/m3 (63) 42.0 μg/m3 (116) 116.0
 
Sept. 26, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) 0.31 ppb (3) 107.3 μg/m3 (76) 35.0 μg/m3 (99) 99.0
 
Sept. 26, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) 0.32 ppb (4) 90.6 μg/m3 (68) 37.0 μg/m3 (104) 104.0
 
Sept. 26, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) 0.29 ppb (3) 87.2 μg/m3 (66) 37.0 μg/m3 (104) 104.0
 
Sept. 26, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) 0.26 ppb (3) 62.9 μg/m3 (54) 57.0 μg/m3 (151) 151.0
 
Sept. 26, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) 0.24 ppb (3) 55.9 μg/m3 (50) 16.0 μg/m3 (59) 59.0
 
Sept. 26, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) 0.23 ppb (3) 58.7 μg/m3 (52) 10.0 μg/m3 (42) 52.0
 
Sept. 26, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) 0.21 ppb (2) 53.1 μg/m3 (48) 11.0 μg/m3 (46) 48.0
 
Sept. 26, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) 0.2 ppb (2) 48.0 μg/m3 (44) 14.0 μg/m3 (54) 54.0
 
Sept. 26, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) 0.21 ppb (2) 28.6 μg/m3 (26) 5.0 μg/m3 (21) 26.0
 
Sept. 26, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) 0.23 ppb (3) 25.8 μg/m3 (23) 6.0 μg/m3 (25) 25.0
 
Sept. 26, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) 0.2 ppb (2) 21.4 μg/m3 (19) 10.0 μg/m3 (42) 42.0
 
Sept. 26, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 22.2 μg/m3 (20) 12.0 μg/m3 (50) 50.0
 
Sept. 26, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) 0.18 ppb (2) 22.4 μg/m3 (20) 5.0 μg/m3 (21) 21.0
 
Sept. 26, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) 0.19 ppb (2) 22.3 μg/m3 (20) 8.0 μg/m3 (33) 33.0
 
Sept. 26, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) 0.2 ppb (2) 26.5 μg/m3 (24) 8.0 μg/m3 (33) 33.0
 
Sept. 26, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) 0.21 ppb (2) 29.5 μg/m3 (27) 11.0 μg/m3 (46) 46.0
 
Sept. 26, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) 0.25 ppb (3) 36.7 μg/m3 (33) 8.0 μg/m3 (33) 33.0
 
Sept. 26, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) 0.35 ppb (4) 27.2 μg/m3 (25) 9.0 μg/m3 (38) 38.0
 
Sept. 26, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) 0.3 ppb (3) 25.1 μg/m3 (23) 9.0 μg/m3 (38) 38.0
 
Sept. 26, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) 0.25 ppb (3) 23.4 μg/m3 (21) 12.0 μg/m3 (50) 50.0
 
Sept. 26, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) 0.24 ppb (3) 42.2 μg/m3 (38) 11.0 μg/m3 (46) 46.0
 
Sept. 26, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) 0.26 ppb (3) 60.3 μg/m3 (53) 13.0 μg/m3 (52) 53.0
 
Sept. 26, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) 0.25 ppb (3) 56.6 μg/m3 (51) 12.0 μg/m3 (50) 51.0
 
Sept. 26, 2020, midnight N/A N/A N/A N/A N/A N/A 55.0 ppb (42) 0.24 ppb (3) 53.8 μg/m3 (49) 16.0 μg/m3 (59) 59.0
 
Sept. 25, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) 0.24 ppb (3) 60.7 μg/m3 (53) 17.0 μg/m3 (61) 61.0
 
Sept. 25, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) 0.2 ppb (2) 51.0 μg/m3 (46) 10.0 μg/m3 (42) 46.0
 
Sept. 25, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) 0.17 ppb (2) 45.2 μg/m3 (41) 13.0 μg/m3 (52) 52.0
 
Sept. 25, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) 0.18 ppb (2) 39.4 μg/m3 (36) 9.0 μg/m3 (38) 38.0
 
Sept. 25, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) 0.19 ppb (2) 44.3 μg/m3 (40) 8.0 μg/m3 (33) 40.0
 
Sept. 25, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) 0.19 ppb (2) 48.9 μg/m3 (44) 10.0 μg/m3 (42) 44.0
 
Sept. 25, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) 0.19 ppb (2) 52.3 μg/m3 (48) 10.0 μg/m3 (42) 48.0
 
Sept. 25, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) 0.19 ppb (2) 59.3 μg/m3 (52) 11.0 μg/m3 (46) 52.0
 
Sept. 25, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) 0.18 ppb (2) 35.6 μg/m3 (32) 4.0 μg/m3 (17) 32.0
 
Sept. 25, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) 0.18 ppb (2) 35.6 μg/m3 (32) 5.0 μg/m3 (21) 32.0
 
Sept. 25, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) 0.16 ppb (2) 24.5 μg/m3 (22) 9.0 μg/m3 (38) 38.0
 
Sept. 25, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 8.0 μg/m3 (33) 33.0
 
Sept. 25, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) 0.16 ppb (2) 22.4 μg/m3 (20) 5.0 μg/m3 (21) 21.0
 
Sept. 25, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) 0.15 ppb (2) 17.8 μg/m3 (16) 4.0 μg/m3 (17) 21.0
 
Sept. 25, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) 0.14 ppb (2) 12.7 μg/m3 (12) 2.0 μg/m3 (8) 25.0
 
Sept. 25, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) 0.14 ppb (2) 12.1 μg/m3 (11) 2.0 μg/m3 (8) 27.0
 
Sept. 25, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) 0.14 ppb (2) 13.2 μg/m3 (12) 2.0 μg/m3 (8) 28.0
 
Sept. 25, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) 0.15 ppb (2) 19.1 μg/m3 (17) 3.0 μg/m3 (12) 28.0
 
Sept. 25, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A 0.14 ppb (2) 21.3 μg/m3 (19) 5.0 μg/m3 (21) 21.0
 
Sept. 25, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) 0.14 ppb (2) 47.0 μg/m3 (43) 8.0 μg/m3 (33) 43.0
 
Sept. 25, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) 0.14 ppb (2) 70.5 μg/m3 (58) 8.0 μg/m3 (33) 58.0
 
Sept. 25, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) 0.15 ppb (2) 41.0 μg/m3 (37) 8.0 μg/m3 (33) 37.0
 
Sept. 25, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) 0.17 ppb (2) 55.3 μg/m3 (50) 7.0 μg/m3 (29) 50.0
 
Sept. 25, 2020, midnight N/A N/A N/A N/A N/A N/A 38.0 ppb (29) 0.19 ppb (2) 73.1 μg/m3 (59) 10.0 μg/m3 (42) 59.0
 
Sept. 24, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) 0.17 ppb (2) 33.0 μg/m3 (30) 8.0 μg/m3 (33) 33.0
 
Sept. 24, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) 0.17 ppb (2) 34.9 μg/m3 (32) 1.0 μg/m3 (4) 32.0
 
Sept. 24, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) 0.17 ppb (2) 37.4 μg/m3 (34) 2.0 μg/m3 (8) 34.0
 
Sept. 24, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) 0.17 ppb (2) 38.2 μg/m3 (35) 5.0 μg/m3 (21) 35.0
 
Sept. 24, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) 0.19 ppb (2) 32.6 μg/m3 (30) 6.0 μg/m3 (25) 30.0
 
Sept. 24, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) 0.2 ppb (2) 32.6 μg/m3 (30) N/A 30.0
 
Sept. 24, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) 0.2 ppb (2) 33.0 μg/m3 (30) N/A 30.0
 
Sept. 24, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) 0.19 ppb (2) 27.8 μg/m3 (25) 5.0 μg/m3 (21) 25.0
 
Sept. 24, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) 0.21 ppb (2) 12.0 μg/m3 (11) 5.0 μg/m3 (21) 21.0
 
Sept. 24, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) 0.25 ppb (3) 11.4 μg/m3 (10) 5.0 μg/m3 (21) 21.0
 
Sept. 24, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) 0.21 ppb (2) 13.3 μg/m3 (12) 4.0 μg/m3 (17) 17.0
 
Sept. 24, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 8.1 μg/m3 (7) 5.0 μg/m3 (21) 21.0
 
Sept. 24, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) 0.21 ppb (2) 8.5 μg/m3 (8) 5.0 μg/m3 (21) 21.0
 
Sept. 24, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) 0.2 ppb (2) 8.0 μg/m3 (7) 3.0 μg/m3 (12) 12.0
 
Sept. 24, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) 0.24 ppb (3) 11.0 μg/m3 (10) 4.0 μg/m3 (17) 17.0
 
Sept. 24, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) 0.22 ppb (2) 15.0 μg/m3 (14) 5.0 μg/m3 (21) 21.0
 
Sept. 24, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) 0.19 ppb (2) 9.0 μg/m3 (8) 7.0 μg/m3 (29) 29.0
 
Sept. 24, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) 0.2 ppb (2) 12.0 μg/m3 (11) 3.0 μg/m3 (12) 17.0
 
Sept. 24, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) 0.2 ppb (2) 9.0 μg/m3 (8) 4.0 μg/m3 (17) 17.0
 
Sept. 24, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) 0.2 ppb (2) 9.0 μg/m3 (8) 4.0 μg/m3 (17) 17.0
 
Sept. 24, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) 0.2 ppb (2) 17.0 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
Sept. 24, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) 0.21 ppb (2) 30.0 μg/m3 (27) 7.0 μg/m3 (29) 29.0
 
Sept. 24, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) 0.18 ppb (2) 39.0 μg/m3 (35) 8.0 μg/m3 (33) 35.0
 
Sept. 24, 2020, midnight N/A N/A N/A N/A N/A N/A 41.0 ppb (32) 0.18 ppb (2) 41.0 μg/m3 (37) 6.0 μg/m3 (25) 37.0
 
Sept. 23, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) 0.18 ppb (2) 40.0 μg/m3 (36) 7.0 μg/m3 (29) 36.0
 
Sept. 23, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) 0.16 ppb (2) 33.0 μg/m3 (30) 7.0 μg/m3 (29) 32.0
 
Sept. 23, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) 0.15 ppb (2) 42.0 μg/m3 (38) 7.0 μg/m3 (29) 38.0
 
Sept. 23, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) 0.18 ppb (2) 47.0 μg/m3 (43) 9.0 μg/m3 (38) 43.0
 
Sept. 23, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) 0.2 ppb (2) 57.0 μg/m3 (51) 11.0 μg/m3 (46) 51.0
 
Sept. 23, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) 0.19 ppb (2) 65.0 μg/m3 (55) 6.0 μg/m3 (25) 55.0
 
Sept. 23, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) 0.2 ppb (2) 43.0 μg/m3 (39) 6.0 μg/m3 (25) 39.0
 
Sept. 23, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) 0.22 ppb (2) 38.0 μg/m3 (35) 5.0 μg/m3 (21) 35.0
 
Sept. 23, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) 0.24 ppb (3) 33.0 μg/m3 (30) 5.0 μg/m3 (21) 30.0
 
Sept. 23, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) 0.3 ppb (3) 31.0 μg/m3 (28) 8.0 μg/m3 (33) 33.0
 
Sept. 23, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) 0.28 ppb (3) 21.0 μg/m3 (19) 5.0 μg/m3 (21) 21.0
 
Sept. 23, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 2.0 μg/m3 (8) 9.0
 
Sept. 23, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) 0.24 ppb (3) 9.0 μg/m3 (8) 2.0 μg/m3 (8) 22.0
 
Sept. 23, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) 0.2 ppb (2) 12.0 μg/m3 (11) 2.0 μg/m3 (8) 20.0
 
Sept. 23, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) 0.22 ppb (2) 16.0 μg/m3 (15) 3.0 μg/m3 (12) 21.0
 
Sept. 23, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) 0.2 ppb (2) 13.0 μg/m3 (12) 3.0 μg/m3 (12) 22.0
 
Sept. 23, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) 0.18 ppb (2) 9.0 μg/m3 (8) 2.0 μg/m3 (8) 23.0
 
Sept. 23, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) 0.18 ppb (2) 11.0 μg/m3 (10) 2.0 μg/m3 (8) 25.0
 
Sept. 23, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) 0.2 ppb (2) 20.0 μg/m3 (18) 4.0 μg/m3 (17) 24.0
 
Sept. 23, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) 0.2 ppb (2) 21.0 μg/m3 (19) 5.0 μg/m3 (21) 26.0
 
Sept. 23, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) 0.17 ppb (2) 17.0 μg/m3 (15) 4.0 μg/m3 (17) 31.0
 
Sept. 23, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) 0.18 ppb (2) 30.0 μg/m3 (27) 5.0 μg/m3 (21) 32.0
 
Sept. 23, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) 0.16 ppb (2) 38.0 μg/m3 (35) 8.0 μg/m3 (33) 35.0
 
Sept. 23, 2020, midnight N/A N/A N/A N/A N/A N/A 51.0 ppb (39) 0.17 ppb (2) 61.0 μg/m3 (53) 6.0 μg/m3 (25) 53.0
 
Sept. 22, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) 0.18 ppb (2) 46.0 μg/m3 (42) 7.0 μg/m3 (29) 42.0