ID: 241

AQSQID: 061072002

Site Name: Visalia - N. Church Street

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

Updated: Jan. 22, 2021, 6:31 a.m.

Location: Visalia (Downtown), CA

Reporting: True, Located: True

Current AQI: 70.0

Visalia (Downtown) CA, US: 36.33252, -119.29095

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 22, 2021, 5 a.m. 32.2 ppb (31) 6.1 ppb (6) N/A 26.0 ppb (25) N/A N/A 8.0 ppb (8) N/A 59.4 μg/m3 (54) 21.0 μg/m3 (70) 70.0
 
Jan. 22, 2021, 4 a.m. 15.2 ppb (15) 1.2 ppb (2) N/A 14.0 ppb (14) N/A N/A 19.0 ppb (18) N/A 56.7 μg/m3 (52) 15.0 μg/m3 (58) 58.0
 
Jan. 22, 2021, 3 a.m. 51.4 ppb (49) 20.3 ppb (20) N/A 31.0 ppb (30) N/A N/A 7.0 ppb (7) N/A 101.3 μg/m3 (74) 27.0 μg/m3 (83) 83.0
 
Jan. 22, 2021, 2 a.m. 54.6 ppb (52) 15.6 ppb (15) N/A 39.0 ppb (37) N/A N/A 3.0 ppb (3) N/A 103.2 μg/m3 (75) 20.0 μg/m3 (68) 75.0
 
Jan. 22, 2021, 1 a.m. 29.1 ppb (28) 2.2 ppb (3) N/A 27.0 ppb (26) N/A N/A 17.0 ppb (16) N/A 62.5 μg/m3 (55) 17.0 μg/m3 (62) 62.0
 
Jan. 22, 2021, midnight 10.0 ppb (10) 1.3 ppb (2) N/A 9.0 ppb (9) N/A N/A 35.0 ppb (33) N/A 68.9 μg/m3 (58) 11.0 μg/m3 (46) 58.0
 
Jan. 21, 2021, 11 p.m. 4.9 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (38) N/A 46.9 μg/m3 (44) 12.0 μg/m3 (50) 50.0
 
Jan. 21, 2021, 10 p.m. 5.1 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 40.0 ppb (38) N/A 47.2 μg/m3 (44) 10.0 μg/m3 (42) 44.0
 
Jan. 21, 2021, 9 p.m. 5.3 ppb (5) 1.3 ppb (2) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (36) N/A 48.4 μg/m3 (45) 11.0 μg/m3 (46) 46.0
 
Jan. 21, 2021, 8 p.m. 8.3 ppb (8) 2.4 ppb (3) N/A 6.0 ppb (6) N/A N/A 32.0 ppb (30) N/A 59.4 μg/m3 (54) 13.0 μg/m3 (53) 54.0
 
Jan. 21, 2021, 7 p.m. 9.7 ppb (10) 2.9 ppb (3) N/A 7.0 ppb (7) N/A N/A 28.0 ppb (26) N/A 74.2 μg/m3 (61) 14.0 μg/m3 (55) 61.0
 
Jan. 21, 2021, 6 p.m. 10.4 ppb (10) 3.9 ppb (4) N/A 7.0 ppb (7) N/A N/A 25.0 ppb (24) N/A 71.5 μg/m3 (60) 13.0 μg/m3 (53) 60.0
 
Jan. 21, 2021, 5 p.m. 15.8 ppb (15) 6.0 ppb (6) N/A 10.0 ppb (10) N/A N/A 20.0 ppb (19) N/A 56.5 μg/m3 (52) 9.0 μg/m3 (38) 52.0
 
Jan. 21, 2021, 4 p.m. 31.5 ppb (30) 13.5 ppb (13) N/A 18.0 ppb (17) N/A N/A 11.0 ppb (11) N/A 45.4 μg/m3 (43) 8.0 μg/m3 (34) 43.0
 
Jan. 21, 2021, 3 p.m. 75.5 ppb (74) 48.2 ppb (46) N/A 27.0 ppb (26) N/A N/A 1.0 ppb (1) N/A 95.4 μg/m3 (71) 12.0 μg/m3 (50) 74.0
 
Jan. 21, 2021, 2 p.m. 69.4 ppb (68) 46.6 ppb (44) N/A 23.0 ppb (22) N/A N/A 1.0 ppb (1) N/A 102.8 μg/m3 (75) 14.0 μg/m3 (55) 75.0
 
Jan. 21, 2021, 1 p.m. 38.8 ppb (37) 16.8 ppb (16) N/A 22.0 ppb (21) N/A N/A 1.0 ppb (1) N/A 62.3 μg/m3 (55) 17.0 μg/m3 (62) 62.0
 
Jan. 21, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 42.3 μg/m3 (40) 16.0 μg/m3 (60) 60.0
 
Jan. 21, 2021, 11 a.m. 17.1 ppb (17) 3.3 ppb (4) N/A 14.0 ppb (14) N/A N/A 8.0 ppb (8) N/A 59.8 μg/m3 (54) 14.0 μg/m3 (55) 55.0
 
Jan. 21, 2021, 10 a.m. 17.5 ppb (17) 2.4 ppb (3) N/A 15.0 ppb (15) N/A N/A 5.0 ppb (5) N/A 64.5 μg/m3 (56) 17.0 μg/m3 (62) 62.0
 
Jan. 21, 2021, 9 a.m. 20.6 ppb (20) 5.1 ppb (5) N/A 16.0 ppb (16) N/A N/A 6.0 ppb (6) N/A 70.4 μg/m3 (59) 21.0 μg/m3 (70) 70.0
 
Jan. 21, 2021, 8 a.m. 18.5 ppb (18) 3.0 ppb (3) N/A 16.0 ppb (16) N/A N/A 7.0 ppb (7) N/A 53.4 μg/m3 (50) 18.0 μg/m3 (64) 64.0
 
Jan. 21, 2021, 7 a.m. 49.2 ppb (47) 24.4 ppb (24) N/A 25.0 ppb (24) N/A N/A 2.0 ppb (2) N/A 66.1 μg/m3 (57) 29.0 μg/m3 (87) 87.0
 
Jan. 21, 2021, 6 a.m. 83.1 ppb (82) 56.8 ppb (54) N/A 26.0 ppb (25) N/A N/A 1.0 ppb (1) N/A 103.2 μg/m3 (75) 37.0 μg/m3 (105) 105.0
 
Jan. 21, 2021, 5 a.m. 82.3 ppb (82) 54.2 ppb (52) N/A 28.0 ppb (27) N/A N/A 1.0 ppb (1) N/A 120.9 μg/m3 (84) 35.0 μg/m3 (100) 100.0
 
Jan. 21, 2021, 4 a.m. 78.6 ppb (78) 48.5 ppb (46) N/A 30.0 ppb (29) N/A N/A 1.0 ppb (1) N/A 115.1 μg/m3 (81) 38.0 μg/m3 (108) 108.0
 
Jan. 21, 2021, 3 a.m. 83.0 ppb (82) 48.6 ppb (46) N/A 34.0 ppb (33) N/A N/A 1.0 ppb (1) N/A 134.7 μg/m3 (91) 38.0 μg/m3 (108) 108.0
 
Jan. 21, 2021, 2 a.m. 55.5 ppb (53) 18.9 ppb (18) N/A 37.0 ppb (35) N/A N/A 1.0 ppb (1) N/A 97.6 μg/m3 (73) 27.0 μg/m3 (83) 83.0
 
Jan. 21, 2021, 1 a.m. 29.0 ppb (28) 2.8 ppb (3) N/A 26.0 ppb (25) N/A N/A 11.0 ppb (11) N/A 93.4 μg/m3 (71) 16.0 μg/m3 (60) 71.0
 
Jan. 21, 2021, midnight 13.1 ppb (13) 1.7 ppb (2) N/A 11.0 ppb (11) N/A N/A 27.0 ppb (25) N/A 64.1 μg/m3 (56) 12.0 μg/m3 (50) 56.0
 
Jan. 20, 2021, 11 p.m. 7.9 ppb (8) 1.5 ppb (2) N/A 6.0 ppb (6) N/A N/A 33.0 ppb (31) N/A 48.8 μg/m3 (46) 11.0 μg/m3 (46) 46.0
 
Jan. 20, 2021, 10 p.m. 7.7 ppb (8) 1.9 ppb (2) N/A 6.0 ppb (6) N/A N/A 31.0 ppb (29) N/A 46.8 μg/m3 (44) 10.0 μg/m3 (42) 44.0
 
Jan. 20, 2021, 9 p.m. 6.4 ppb (7) 1.9 ppb (2) N/A 5.0 ppb (5) N/A N/A 30.0 ppb (28) N/A 44.8 μg/m3 (42) 6.0 μg/m3 (25) 42.0
 
Jan. 20, 2021, 8 p.m. 8.4 ppb (8) 3.0 ppb (3) N/A 5.0 ppb (5) N/A N/A 26.0 ppb (25) N/A 47.0 μg/m3 (44) 5.0 μg/m3 (21) 44.0
 
Jan. 20, 2021, 7 p.m. 9.1 ppb (9) 3.6 ppb (4) N/A 5.0 ppb (5) N/A N/A 22.0 ppb (21) N/A 45.1 μg/m3 (42) 6.0 μg/m3 (25) 42.0
 
Jan. 20, 2021, 6 p.m. 12.1 ppb (12) 5.4 ppb (6) N/A 7.0 ppb (7) N/A N/A 18.0 ppb (17) N/A 45.0 μg/m3 (42) 8.0 μg/m3 (34) 42.0
 
Jan. 20, 2021, 5 p.m. 21.3 ppb (21) 11.0 ppb (11) N/A 10.0 ppb (10) N/A N/A 11.0 ppb (11) N/A 52.5 μg/m3 (49) 10.0 μg/m3 (42) 49.0
 
Jan. 20, 2021, 4 p.m. 30.9 ppb (30) 18.0 ppb (17) N/A 13.0 ppb (13) N/A N/A 5.0 ppb (5) N/A 64.5 μg/m3 (56) 9.0 μg/m3 (38) 56.0
 
Jan. 20, 2021, 3 p.m. 27.7 ppb (27) 12.4 ppb (12) N/A 15.0 ppb (15) N/A N/A 3.0 ppb (3) N/A 66.9 μg/m3 (57) 17.0 μg/m3 (62) 62.0
 
Jan. 20, 2021, 2 p.m. 37.5 ppb (36) 18.2 ppb (18) N/A 19.0 ppb (18) N/A N/A 1.0 ppb (1) N/A 47.9 μg/m3 (45) 14.0 μg/m3 (55) 55.0
 
Jan. 20, 2021, 1 p.m. 44.8 ppb (43) 25.2 ppb (24) N/A 20.0 ppb (19) N/A N/A 1.0 ppb (1) N/A 63.8 μg/m3 (56) 22.0 μg/m3 (72) 72.0
 
Jan. 20, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 74.7 μg/m3 (61) 18.0 μg/m3 (64) 64.0
 
Jan. 20, 2021, 11 a.m. 43.2 ppb (41) 21.8 ppb (21) N/A 22.0 ppb (21) N/A N/A 1.0 ppb (1) N/A 82.5 μg/m3 (65) 18.0 μg/m3 (64) 65.0
 
Jan. 20, 2021, 10 a.m. 29.9 ppb (29) 10.9 ppb (11) N/A 19.0 ppb (18) N/A N/A 1.0 ppb (1) N/A 61.0 μg/m3 (54) 17.0 μg/m3 (62) 62.0
 
Jan. 20, 2021, 9 a.m. 28.2 ppb (27) 7.8 ppb (8) N/A 20.0 ppb (19) N/A N/A 1.0 ppb (1) N/A 65.8 μg/m3 (57) 20.0 μg/m3 (68) 68.0
 
Jan. 20, 2021, 8 a.m. 32.1 ppb (31) 9.0 ppb (9) N/A 23.0 ppb (22) N/A N/A 1.0 ppb (1) N/A 73.4 μg/m3 (61) 17.0 μg/m3 (62) 62.0
 
Jan. 20, 2021, 7 a.m. 47.9 ppb (46) 20.3 ppb (20) N/A 28.0 ppb (27) N/A N/A 1.0 ppb (1) N/A 60.4 μg/m3 (54) 23.0 μg/m3 (74) 74.0
 
Jan. 20, 2021, 6 a.m. 34.9 ppb (33) 9.0 ppb (9) N/A 26.0 ppb (25) N/A N/A 5.0 ppb (5) N/A 52.1 μg/m3 (49) 14.0 μg/m3 (55) 55.0
 
Jan. 20, 2021, 5 a.m. 64.5 ppb (63) 35.8 ppb (34) N/A 29.0 ppb (28) N/A N/A 1.0 ppb (1) N/A 95.5 μg/m3 (72) 19.0 μg/m3 (66) 72.0
 
Jan. 20, 2021, 4 a.m. 58.5 ppb (56) 25.0 ppb (24) N/A 34.0 ppb (33) N/A N/A 2.0 ppb (2) N/A 81.6 μg/m3 (65) 18.0 μg/m3 (64) 65.0
 
Jan. 20, 2021, 3 a.m. 31.8 ppb (30) 5.3 ppb (5) N/A 27.0 ppb (26) N/A N/A 9.0 ppb (9) N/A 58.6 μg/m3 (53) 15.0 μg/m3 (58) 58.0
 
Jan. 20, 2021, 2 a.m. 25.0 ppb (24) 2.6 ppb (3) N/A 22.0 ppb (21) N/A N/A 15.0 ppb (14) N/A 70.9 μg/m3 (59) 21.0 μg/m3 (70) 70.0
 
Jan. 20, 2021, 1 a.m. 18.5 ppb (18) 1.4 ppb (2) N/A 17.0 ppb (17) N/A N/A 21.0 ppb (20) N/A 71.0 μg/m3 (59) 12.0 μg/m3 (50) 59.0
 
Jan. 20, 2021, midnight 7.5 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (7) N/A N/A 34.0 ppb (32) N/A 59.2 μg/m3 (54) 13.0 μg/m3 (53) 54.0
 
Jan. 19, 2021, 11 p.m. 5.4 ppb (6) 1.1 ppb (2) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (34) N/A 70.6 μg/m3 (59) 7.0 μg/m3 (30) 59.0
 
Jan. 19, 2021, 10 p.m. 6.1 ppb (6) 1.5 ppb (2) N/A 5.0 ppb (5) N/A N/A 34.0 ppb (32) N/A 68.8 μg/m3 (58) 9.0 μg/m3 (38) 58.0
 
Jan. 19, 2021, 9 p.m. 7.9 ppb (8) 2.1 ppb (2) N/A 6.0 ppb (6) N/A N/A 32.0 ppb (30) N/A 79.5 μg/m3 (64) 13.0 μg/m3 (53) 64.0
 
Jan. 19, 2021, 8 p.m. 9.7 ppb (10) 2.8 ppb (3) N/A 7.0 ppb (7) N/A N/A 30.0 ppb (28) N/A 76.6 μg/m3 (62) 19.0 μg/m3 (66) 66.0
 
Jan. 19, 2021, 7 p.m. 11.7 ppb (12) 3.9 ppb (4) N/A 8.0 ppb (8) N/A N/A 24.0 ppb (23) N/A 73.9 μg/m3 (61) 21.0 μg/m3 (70) 70.0
 
Jan. 19, 2021, 6 p.m. 12.4 ppb (12) 4.4 ppb (5) N/A 8.0 ppb (8) N/A N/A 23.0 ppb (22) N/A 74.7 μg/m3 (61) 25.0 μg/m3 (79) 79.0
 
Jan. 19, 2021, 5 p.m. 26.2 ppb (25) 11.8 ppb (12) N/A 14.0 ppb (14) N/A N/A 12.0 ppb (12) N/A 94.6 μg/m3 (71) 23.0 μg/m3 (74) 74.0
 
Jan. 19, 2021, 4 p.m. 21.1 ppb (20) 8.2 ppb (8) N/A 13.0 ppb (13) N/A N/A 9.0 ppb (9) N/A 84.9 μg/m3 (66) 11.0 μg/m3 (46) 66.0
 
Jan. 19, 2021, 3 p.m. 42.5 ppb (41) 21.1 ppb (20) N/A 21.0 ppb (20) N/A N/A 2.0 ppb (2) N/A 156.6 μg/m3 (102) 17.0 μg/m3 (62) 102.0
 
Jan. 19, 2021, 2 p.m. 23.5 ppb (23) 5.1 ppb (5) N/A 18.0 ppb (17) N/A N/A 5.0 ppb (5) N/A 70.0 μg/m3 (59) 9.0 μg/m3 (38) 59.0
 
Jan. 19, 2021, 1 p.m. 12.5 ppb (12) 2.7 ppb (3) N/A 10.0 ppb (10) N/A N/A 15.0 ppb (14) N/A 70.7 μg/m3 (59) 11.0 μg/m3 (46) 59.0
 
Jan. 19, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 81.5 μg/m3 (65) 10.0 μg/m3 (42) 65.0
 
Jan. 19, 2021, 11 a.m. 7.7 ppb (8) 1.7 ppb (2) N/A 6.0 ppb (6) N/A N/A 17.0 ppb (16) N/A 77.4 μg/m3 (63) 16.0 μg/m3 (60) 63.0
 
Jan. 19, 2021, 10 a.m. 7.9 ppb (8) 1.3 ppb (2) N/A 7.0 ppb (7) N/A N/A 20.0 ppb (19) N/A 87.7 μg/m3 (68) 32.0 μg/m3 (93) 93.0
 
Jan. 19, 2021, 9 a.m. 9.5 ppb (9) 2.8 ppb (3) N/A 7.0 ppb (7) N/A N/A 24.0 ppb (23) N/A 70.9 μg/m3 (59) 39.0 μg/m3 (110) 110.0
 
Jan. 19, 2021, 8 a.m. 6.7 ppb (7) 1.2 ppb (2) N/A 6.0 ppb (6) N/A N/A 30.0 ppb (28) N/A 71.3 μg/m3 (60) 45.0 μg/m3 (125) 125.0
 
Jan. 19, 2021, 7 a.m. 9.4 ppb (9) 1.6 ppb (2) N/A 8.0 ppb (8) N/A N/A 26.0 ppb (25) N/A 83.1 μg/m3 (65) 54.0 μg/m3 (147) 147.0
 
Jan. 19, 2021, 6 a.m. 13.1 ppb (13) 1.6 ppb (2) N/A 12.0 ppb (12) N/A N/A 20.0 ppb (19) N/A 98.4 μg/m3 (73) 64.0 μg/m3 (156) 156.0
 
Jan. 19, 2021, 5 a.m. 17.2 ppb (17) 2.0 ppb (2) N/A 15.0 ppb (15) N/A N/A 18.0 ppb (17) N/A 102.3 μg/m3 (75) 67.0 μg/m3 (157) 157.0
 
Jan. 19, 2021, 4 a.m. 26.6 ppb (26) 3.1 ppb (3) N/A 23.0 ppb (22) N/A N/A 14.0 ppb (13) N/A 99.9 μg/m3 (74) 64.0 μg/m3 (156) 156.0
 
Jan. 19, 2021, 3 a.m. 33.4 ppb (32) 4.0 ppb (4) N/A 29.0 ppb (28) N/A N/A 11.0 ppb (11) N/A 101.3 μg/m3 (74) 53.0 μg/m3 (145) 145.0
 
Jan. 19, 2021, 2 a.m. 36.0 ppb (34) 4.2 ppb (4) N/A 32.0 ppb (31) N/A N/A 11.0 ppb (11) N/A 84.5 μg/m3 (66) 46.0 μg/m3 (127) 127.0
 
Jan. 19, 2021, 1 a.m. 16.4 ppb (16) 0.9 ppb (1) N/A 16.0 ppb (16) N/A N/A 31.0 ppb (29) N/A 71.7 μg/m3 (60) 43.0 μg/m3 (120) 120.0
 
Jan. 19, 2021, midnight 10.9 ppb (11) 1.1 ppb (2) N/A 10.0 ppb (10) N/A N/A 39.0 ppb (37) N/A 71.5 μg/m3 (60) 38.0 μg/m3 (108) 108.0
 
Jan. 18, 2021, 11 p.m. 8.4 ppb (8) 1.3 ppb (2) N/A 7.0 ppb (7) N/A N/A 42.0 ppb (39) N/A 68.6 μg/m3 (58) 42.0 μg/m3 (118) 118.0
 
Jan. 18, 2021, 10 p.m. 7.8 ppb (8) 1.6 ppb (2) N/A 6.0 ppb (6) N/A N/A 42.0 ppb (39) N/A 64.6 μg/m3 (56) 40.0 μg/m3 (113) 113.0
 
Jan. 18, 2021, 9 p.m. 8.1 ppb (8) 1.9 ppb (2) N/A 6.0 ppb (6) N/A N/A 41.0 ppb (38) N/A 81.5 μg/m3 (65) 52.0 μg/m3 (142) 142.0
 
Jan. 18, 2021, 8 p.m. 8.2 ppb (8) 2.2 ppb (3) N/A 6.0 ppb (6) N/A N/A 42.0 ppb (39) N/A 69.1 μg/m3 (58) 46.0 μg/m3 (127) 127.0
 
Jan. 18, 2021, 7 p.m. 14.4 ppb (14) 4.1 ppb (4) N/A 10.0 ppb (10) N/A N/A 33.0 ppb (31) N/A 75.9 μg/m3 (62) 52.0 μg/m3 (142) 142.0
 
Jan. 18, 2021, 6 p.m. 14.2 ppb (14) 4.4 ppb (5) N/A 10.0 ppb (10) N/A N/A 27.0 ppb (25) N/A 58.3 μg/m3 (53) 43.0 μg/m3 (120) 120.0
 
Jan. 18, 2021, 5 p.m. 26.3 ppb (25) 10.0 ppb (10) N/A 16.0 ppb (16) N/A N/A 16.0 ppb (15) N/A 67.7 μg/m3 (58) 41.0 μg/m3 (115) 115.0
 
Jan. 18, 2021, 4 p.m. 51.3 ppb (49) 31.2 ppb (30) N/A 20.0 ppb (19) N/A N/A 4.0 ppb (4) N/A 68.7 μg/m3 (58) 25.0 μg/m3 (79) 79.0
 
Jan. 18, 2021, 3 p.m. 49.0 ppb (47) 27.8 ppb (27) N/A 21.0 ppb (20) N/A N/A 1.0 ppb (1) N/A 57.8 μg/m3 (53) 24.0 μg/m3 (77) 77.0
 
Jan. 18, 2021, 2 p.m. 21.7 ppb (21) 6.8 ppb (7) N/A 15.0 ppb (15) N/A N/A 3.0 ppb (3) N/A 65.3 μg/m3 (57) 29.0 μg/m3 (87) 87.0
 
Jan. 18, 2021, 1 p.m. 29.3 ppb (28) 10.8 ppb (11) N/A 18.0 ppb (17) N/A N/A 1.0 ppb (1) N/A 44.8 μg/m3 (42) 25.0 μg/m3 (79) 79.0
 
Jan. 18, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 31.1 μg/m3 (29) 20.0 μg/m3 (68) 68.0
 
Jan. 18, 2021, 11 a.m. 22.3 ppb (22) 5.0 ppb (5) N/A 17.0 ppb (17) N/A N/A 2.0 ppb (2) N/A 43.4 μg/m3 (41) 29.0 μg/m3 (87) 87.0
 
Jan. 18, 2021, 10 a.m. 22.9 ppb (22) 3.7 ppb (4) N/A 19.0 ppb (18) N/A N/A 3.0 ppb (3) N/A 44.0 μg/m3 (41) 34.0 μg/m3 (98) 98.0
 
Jan. 18, 2021, 9 a.m. 17.0 ppb (17) 4.0 ppb (4) N/A 13.0 ppb (13) N/A N/A 13.0 ppb (13) N/A 37.0 μg/m3 (35) 27.0 μg/m3 (83) 83.0
 
Jan. 18, 2021, 8 a.m. 14.3 ppb (14) 2.2 ppb (3) N/A 12.0 ppb (12) N/A N/A 13.0 ppb (13) N/A 52.4 μg/m3 (49) 39.0 μg/m3 (110) 110.0
 
Jan. 18, 2021, 7 a.m. 18.5 ppb (18) 2.6 ppb (3) N/A 16.0 ppb (16) N/A N/A 10.0 ppb (10) N/A 62.4 μg/m3 (55) 45.0 μg/m3 (125) 125.0
 
Jan. 18, 2021, 6 a.m. 20.2 ppb (20) 2.3 ppb (3) N/A 18.0 ppb (17) N/A N/A 11.0 ppb (11) N/A 65.6 μg/m3 (57) 42.0 μg/m3 (118) 118.0
 
Jan. 18, 2021, 5 a.m. 27.6 ppb (27) 3.1 ppb (3) N/A 25.0 ppb (24) N/A N/A 7.0 ppb (7) N/A 76.8 μg/m3 (62) 53.0 μg/m3 (145) 145.0
 
Jan. 18, 2021, 4 a.m. 41.0 ppb (39) 10.7 ppb (11) N/A 30.0 ppb (29) N/A N/A 3.0 ppb (3) N/A 93.1 μg/m3 (70) 62.0 μg/m3 (155) 155.0
 
Jan. 18, 2021, 3 a.m. 39.0 ppb (37) 5.9 ppb (6) N/A 33.0 ppb (32) N/A N/A 7.0 ppb (7) N/A 79.4 μg/m3 (64) 58.0 μg/m3 (153) 153.0
 
Jan. 18, 2021, 2 a.m. 34.3 ppb (33) 2.8 ppb (3) N/A 32.0 ppb (31) N/A N/A 11.0 ppb (11) N/A 79.3 μg/m3 (64) 53.0 μg/m3 (145) 145.0
 
Jan. 18, 2021, 1 a.m. 22.3 ppb (22) 1.4 ppb (2) N/A 21.0 ppb (20) N/A N/A 24.0 ppb (23) N/A 57.6 μg/m3 (53) 42.0 μg/m3 (118) 118.0
 
Jan. 18, 2021, midnight 7.7 ppb (8) 0.8 ppb (1) N/A 7.0 ppb (7) N/A N/A 41.0 ppb (38) N/A 49.9 μg/m3 (47) 39.0 μg/m3 (110) 110.0
 
Jan. 17, 2021, 11 p.m. 7.6 ppb (8) 1.2 ppb (2) N/A 6.0 ppb (6) N/A N/A 42.0 ppb (39) N/A 58.3 μg/m3 (53) 38.0 μg/m3 (108) 108.0
 
Jan. 17, 2021, 10 p.m. 6.1 ppb (6) 1.2 ppb (2) N/A 5.0 ppb (5) N/A N/A 44.0 ppb (41) N/A 49.4 μg/m3 (46) 34.0 μg/m3 (98) 98.0
 
Jan. 17, 2021, 9 p.m. 6.2 ppb (6) 1.5 ppb (2) N/A 5.0 ppb (5) N/A N/A 42.0 ppb (39) N/A 48.5 μg/m3 (45) 31.0 μg/m3 (91) 91.0
 
Jan. 17, 2021, 8 p.m. 6.7 ppb (7) 1.9 ppb (2) N/A 5.0 ppb (5) N/A N/A 39.0 ppb (37) N/A 45.8 μg/m3 (43) 34.0 μg/m3 (98) 98.0
 
Jan. 17, 2021, 7 p.m. 8.4 ppb (8) 2.4 ppb (3) N/A 6.0 ppb (6) N/A N/A 34.0 ppb (32) N/A 58.1 μg/m3 (53) 34.0 μg/m3 (98) 98.0
 
Jan. 17, 2021, 6 p.m. 15.7 ppb (15) 4.6 ppb (5) N/A 11.0 ppb (11) N/A N/A 27.0 ppb (25) N/A 67.7 μg/m3 (58) 42.0 μg/m3 (118) 118.0
 
Jan. 17, 2021, 5 p.m. 16.8 ppb (16) 5.5 ppb (6) N/A 11.0 ppb (11) N/A N/A 22.0 ppb (21) N/A 60.6 μg/m3 (54) 39.0 μg/m3 (110) 110.0
 
Jan. 17, 2021, 4 p.m. 32.1 ppb (31) 15.8 ppb (15) N/A 16.0 ppb (16) N/A N/A 8.0 ppb (8) N/A 52.6 μg/m3 (49) 35.0 μg/m3 (100) 100.0
 
Jan. 17, 2021, 3 p.m. 36.2 ppb (35) 19.1 ppb (19) N/A 17.0 ppb (17) N/A N/A 2.0 ppb (2) N/A 50.1 μg/m3 (47) 36.0 μg/m3 (103) 103.0
 
Jan. 17, 2021, 2 p.m. 37.2 ppb (36) 18.3 ppb (18) N/A 19.0 ppb (18) N/A N/A 2.0 ppb (2) N/A 52.1 μg/m3 (49) 33.0 μg/m3 (95) 95.0
 
Jan. 17, 2021, 1 p.m. 41.2 ppb (39) 24.9 ppb (24) N/A 16.0 ppb (16) N/A N/A 1.0 ppb (1) N/A 63.0 μg/m3 (55) 43.0 μg/m3 (120) 120.0
 
Jan. 17, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 60.1 μg/m3 (54) 38.0 μg/m3 (108) 108.0
 
Jan. 17, 2021, 11 a.m. 21.3 ppb (21) 4.6 ppb (5) N/A 17.0 ppb (17) N/A N/A 4.0 ppb (4) N/A 51.5 μg/m3 (48) 40.0 μg/m3 (113) 113.0
 
Jan. 17, 2021, 10 a.m. 13.1 ppb (13) 2.1 ppb (2) N/A 11.0 ppb (11) N/A N/A 13.0 ppb (13) N/A 60.5 μg/m3 (54) 39.0 μg/m3 (110) 110.0
 
Jan. 17, 2021, 9 a.m. 14.0 ppb (14) 1.9 ppb (2) N/A 12.0 ppb (12) N/A N/A 10.0 ppb (10) N/A 60.5 μg/m3 (54) 45.0 μg/m3 (125) 125.0
 
Jan. 17, 2021, 8 a.m. 15.5 ppb (15) 2.0 ppb (2) N/A 14.0 ppb (14) N/A N/A 12.0 ppb (12) N/A 66.9 μg/m3 (57) 48.0 μg/m3 (132) 132.0
 
Jan. 17, 2021, 7 a.m. 16.5 ppb (16) 2.1 ppb (2) N/A 14.0 ppb (14) N/A N/A 12.0 ppb (12) N/A 66.7 μg/m3 (57) 48.0 μg/m3 (132) 132.0
 
Jan. 17, 2021, 6 a.m. 14.0 ppb (14) 2.3 ppb (3) N/A 12.0 ppb (12) N/A N/A 16.0 ppb (15) N/A 70.5 μg/m3 (59) 49.0 μg/m3 (135) 135.0
 
Jan. 17, 2021, 5 a.m. 15.7 ppb (15) 2.0 ppb (2) N/A 14.0 ppb (14) N/A N/A 15.0 ppb (14) N/A 74.6 μg/m3 (61) 52.0 μg/m3 (142) 142.0
 
Jan. 17, 2021, 4 a.m. 35.0 ppb (34) 9.6 ppb (10) N/A 25.0 ppb (24) N/A N/A 4.0 ppb (4) N/A 85.4 μg/m3 (67) 56.0 μg/m3 (152) 152.0
 
Jan. 17, 2021, 3 a.m. 40.7 ppb (39) 10.2 ppb (10) N/A 31.0 ppb (30) N/A N/A 1.0 ppb (1) N/A 90.5 μg/m3 (69) 50.0 μg/m3 (137) 137.0
 
Jan. 17, 2021, 2 a.m. 30.7 ppb (29) 3.3 ppb (4) N/A 27.0 ppb (26) N/A N/A 5.0 ppb (5) N/A 85.1 μg/m3 (66) 43.0 μg/m3 (120) 120.0
 
Jan. 17, 2021, 1 a.m. 14.4 ppb (14) 0.9 ppb (1) N/A 14.0 ppb (14) N/A N/A 25.0 ppb (24) N/A 58.5 μg/m3 (53) 40.0 μg/m3 (113) 113.0
 
Jan. 17, 2021, midnight 8.1 ppb (8) 1.0 ppb (1) N/A 7.0 ppb (7) N/A N/A 35.0 ppb (33) N/A 55.8 μg/m3 (52) 35.0 μg/m3 (100) 100.0
 
Jan. 16, 2021, 11 p.m. 8.5 ppb (9) 1.7 ppb (2) N/A 7.0 ppb (7) N/A N/A 36.0 ppb (34) N/A 55.4 μg/m3 (52) 38.0 μg/m3 (108) 108.0
 
Jan. 16, 2021, 10 p.m. 8.3 ppb (8) 1.9 ppb (2) N/A 6.0 ppb (6) N/A N/A 36.0 ppb (34) N/A 62.4 μg/m3 (55) 42.0 μg/m3 (118) 118.0
 
Jan. 16, 2021, 9 p.m. 9.4 ppb (9) 2.8 ppb (3) N/A 7.0 ppb (7) N/A N/A 33.0 ppb (31) N/A 56.8 μg/m3 (52) 44.0 μg/m3 (122) 122.0
 
Jan. 16, 2021, 8 p.m. 8.9 ppb (9) 2.8 ppb (3) N/A 6.0 ppb (6) N/A N/A 29.0 ppb (27) N/A 65.6 μg/m3 (57) 49.0 μg/m3 (135) 135.0
 
Jan. 16, 2021, 7 p.m. 10.1 ppb (10) 3.5 ppb (4) N/A 7.0 ppb (7) N/A N/A 24.0 ppb (23) N/A 75.3 μg/m3 (62) 49.0 μg/m3 (135) 135.0
 
Jan. 16, 2021, 6 p.m. 11.9 ppb (12) 4.6 ppb (5) N/A 7.0 ppb (7) N/A N/A 20.0 ppb (19) N/A 74.3 μg/m3 (61) 43.0 μg/m3 (120) 120.0
 
Jan. 16, 2021, 5 p.m. 12.9 ppb (13) 4.9 ppb (5) N/A 8.0 ppb (8) N/A N/A 18.0 ppb (17) N/A 70.3 μg/m3 (59) 42.0 μg/m3 (118) 118.0
 
Jan. 16, 2021, 4 p.m. 23.1 ppb (22) 9.4 ppb (9) N/A 14.0 ppb (14) N/A N/A 8.0 ppb (8) N/A 70.1 μg/m3 (59) 45.0 μg/m3 (125) 125.0
 
Jan. 16, 2021, 3 p.m. 28.3 ppb (27) 12.5 ppb (12) N/A 16.0 ppb (16) N/A N/A 2.0 ppb (2) N/A 75.0 μg/m3 (61) 41.0 μg/m3 (115) 115.0
 
Jan. 16, 2021, 2 p.m. 19.4 ppb (19) 5.0 ppb (5) N/A 15.0 ppb (15) N/A N/A 4.0 ppb (4) N/A 68.5 μg/m3 (58) 41.0 μg/m3 (115) 115.0
 
Jan. 16, 2021, 1 p.m. 15.5 ppb (15) 3.7 ppb (4) N/A 12.0 ppb (12) N/A N/A 6.0 ppb (6) N/A 67.2 μg/m3 (58) 39.0 μg/m3 (110) 110.0
 
Jan. 16, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 69.7 μg/m3 (59) 47.0 μg/m3 (130) 130.0
 
Jan. 16, 2021, 11 a.m. 16.9 ppb (16) 3.1 ppb (3) N/A 14.0 ppb (14) N/A N/A 3.0 ppb (3) N/A 71.3 μg/m3 (60) 48.0 μg/m3 (132) 132.0
 
Jan. 16, 2021, 10 a.m. 17.1 ppb (17) 3.3 ppb (4) N/A 14.0 ppb (14) N/A N/A 3.0 ppb (3) N/A 67.4 μg/m3 (58) 44.0 μg/m3 (122) 122.0
 
Jan. 16, 2021, 9 a.m. 19.8 ppb (19) 4.7 ppb (5) N/A 15.0 ppb (15) N/A N/A 1.0 ppb (1) N/A 66.1 μg/m3 (57) 44.0 μg/m3 (122) 122.0
 
Jan. 16, 2021, 8 a.m. 19.8 ppb (19) 3.6 ppb (4) N/A 16.0 ppb (16) N/A N/A 2.0 ppb (2) N/A 63.3 μg/m3 (56) 46.0 μg/m3 (127) 127.0
 
Jan. 16, 2021, 7 a.m. 23.9 ppb (23) 5.2 ppb (5) N/A 19.0 ppb (18) N/A N/A 4.0 ppb (4) N/A 64.4 μg/m3 (56) 45.0 μg/m3 (125) 125.0
 
Jan. 16, 2021, 6 a.m. 24.4 ppb (24) 3.8 ppb (4) N/A 21.0 ppb (20) N/A N/A 4.0 ppb (4) N/A 63.3 μg/m3 (56) 43.0 μg/m3 (120) 120.0
 
Jan. 16, 2021, 5 a.m. 20.0 ppb (19) 2.7 ppb (3) N/A 17.0 ppb (17) N/A N/A 12.0 ppb (12) N/A 57.5 μg/m3 (53) 38.0 μg/m3 (108) 108.0
 
Jan. 16, 2021, 4 a.m. 19.6 ppb (19) 2.1 ppb (2) N/A 17.0 ppb (17) N/A N/A 12.0 ppb (12) N/A 58.7 μg/m3 (53) 37.0 μg/m3 (105) 105.0
 
Jan. 16, 2021, 3 a.m. 19.9 ppb (19) 2.0 ppb (2) N/A 18.0 ppb (17) N/A N/A 13.0 ppb (13) N/A 57.1 μg/m3 (53) 37.0 μg/m3 (105) 105.0
 
Jan. 16, 2021, 2 a.m. 19.8 ppb (19) 1.8 ppb (2) N/A 18.0 ppb (17) N/A N/A 15.0 ppb (14) N/A 69.1 μg/m3 (58) 35.0 μg/m3 (100) 100.0
 
Jan. 16, 2021, 1 a.m. 15.5 ppb (15) 1.3 ppb (2) N/A 14.0 ppb (14) N/A N/A 22.0 ppb (21) N/A 70.5 μg/m3 (59) 34.0 μg/m3 (98) 98.0
 
Jan. 16, 2021, midnight 15.3 ppb (15) 2.1 ppb (2) N/A 13.0 ppb (13) N/A N/A 27.0 ppb (25) N/A 87.8 μg/m3 (68) 43.0 μg/m3 (120) 120.0
 
Jan. 15, 2021, 11 p.m. 10.9 ppb (11) 2.0 ppb (2) N/A 9.0 ppb (9) N/A N/A 35.0 ppb (33) N/A 72.4 μg/m3 (60) 36.0 μg/m3 (103) 103.0
 
Jan. 15, 2021, 10 p.m. 8.6 ppb (9) 1.9 ppb (2) N/A 7.0 ppb (7) N/A N/A 39.0 ppb (37) N/A 64.4 μg/m3 (56) 29.0 μg/m3 (87) 87.0
 
Jan. 15, 2021, 9 p.m. 8.3 ppb (8) 2.0 ppb (2) N/A 6.0 ppb (6) N/A N/A 39.0 ppb (37) N/A 61.8 μg/m3 (55) 36.0 μg/m3 (103) 103.0
 
Jan. 15, 2021, 8 p.m. 9.9 ppb (10) 2.9 ppb (3) N/A 7.0 ppb (7) N/A N/A 34.0 ppb (32) N/A 69.5 μg/m3 (59) 42.0 μg/m3 (118) 118.0
 
Jan. 15, 2021, 7 p.m. 13.3 ppb (13) 4.0 ppb (4) N/A 9.0 ppb (9) N/A N/A 30.0 ppb (28) N/A 85.4 μg/m3 (67) 44.0 μg/m3 (122) 122.0
 
Jan. 15, 2021, 6 p.m. 12.1 ppb (12) 4.1 ppb (4) N/A 8.0 ppb (8) N/A N/A 26.0 ppb (25) N/A 52.9 μg/m3 (49) 31.0 μg/m3 (91) 91.0
 
Jan. 15, 2021, 5 p.m. 24.1 ppb (23) 10.2 ppb (10) N/A 14.0 ppb (14) N/A N/A 17.0 ppb (16) N/A 55.8 μg/m3 (52) 28.0 μg/m3 (85) 85.0
 
Jan. 15, 2021, 4 p.m. 64.2 ppb (62) 40.1 ppb (38) N/A 24.0 ppb (23) N/A N/A 4.0 ppb (4) N/A 98.1 μg/m3 (73) 40.0 μg/m3 (113) 113.0
 
Jan. 15, 2021, 3 p.m. 58.1 ppb (56) 36.7 ppb (35) N/A 21.0 ppb (20) N/A N/A 1.0 ppb (1) N/A 78.3 μg/m3 (63) 41.0 μg/m3 (115) 115.0
 
Jan. 15, 2021, 2 p.m. 38.9 ppb (37) 18.6 ppb (18) N/A 20.0 ppb (19) N/A N/A 1.0 ppb (1) N/A 77.9 μg/m3 (63) 46.0 μg/m3 (127) 127.0
 
Jan. 15, 2021, 1 p.m. 20.6 ppb (20) 4.2 ppb (4) N/A 16.0 ppb (16) N/A N/A 5.0 ppb (5) N/A 96.6 μg/m3 (72) 49.0 μg/m3 (135) 135.0
 
Jan. 15, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 75.0 μg/m3 (61) 48.0 μg/m3 (132) 132.0
 
Jan. 15, 2021, 11 a.m. 20.8 ppb (20) 2.9 ppb (3) N/A 18.0 ppb (17) N/A N/A 5.0 ppb (5) N/A 68.7 μg/m3 (58) 40.0 μg/m3 (113) 113.0
 
Jan. 15, 2021, 10 a.m. 28.6 ppb (27) 7.9 ppb (8) N/A 21.0 ppb (20) N/A N/A 5.0 ppb (5) N/A 51.6 μg/m3 (48) 32.0 μg/m3 (93) 93.0
 
Jan. 15, 2021, 9 a.m. 41.7 ppb (40) 15.9 ppb (15) N/A 26.0 ppb (25) N/A N/A 1.0 ppb (1) N/A 52.8 μg/m3 (49) 34.0 μg/m3 (98) 98.0
 
Jan. 15, 2021, 8 a.m. 19.2 ppb (19) 3.6 ppb (4) N/A 16.0 ppb (16) N/A N/A 10.0 ppb (10) N/A 44.4 μg/m3 (42) 32.0 μg/m3 (93) 93.0
 
Jan. 15, 2021, 7 a.m. 22.6 ppb (22) 5.3 ppb (5) N/A 17.0 ppb (17) N/A N/A 10.0 ppb (10) N/A 51.9 μg/m3 (49) 39.0 μg/m3 (110) 110.0
 
Jan. 15, 2021, 6 a.m. 52.9 ppb (50) 26.0 ppb (25) N/A 27.0 ppb (26) N/A N/A 1.0 ppb (1) N/A 77.9 μg/m3 (63) 45.0 μg/m3 (125) 125.0