ID: 241

AQSQID: 061072002

Site Name: Visalia - N. Church Street

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

Updated: March 7, 2021, 10:32 p.m.

Location: Visalia (Downtown), CA

Reporting: True, Located: True

Current AQI: 30.0

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
Feb. 28, 2021, 9 p.m. 4.5 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (38) N/A 32.9 μg/m3 (31) 6.0 μg/m3 (25) 38.0
 
Feb. 28, 2021, 8 p.m. 4.0 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (37) N/A 39.4 μg/m3 (37) 6.0 μg/m3 (25) 37.0
 
Feb. 28, 2021, 7 p.m. 4.1 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (36) N/A 25.5 μg/m3 (24) 6.0 μg/m3 (25) 36.0
 
Feb. 28, 2021, 6 p.m. 3.8 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (35) N/A 28.6 μg/m3 (27) 7.0 μg/m3 (30) 35.0
 
Feb. 28, 2021, 5 p.m. 5.9 ppb (6) 2.1 ppb (2) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (27) N/A 32.2 μg/m3 (30) 10.0 μg/m3 (42) 42.0
 
Feb. 28, 2021, 4 p.m. 8.5 ppb (9) 2.7 ppb (3) N/A 6.0 ppb (6) N/A N/A 24.0 ppb (23) N/A 35.8 μg/m3 (34) 11.0 μg/m3 (46) 46.0
 
Feb. 28, 2021, 3 p.m. 11.0 ppb (11) 2.5 ppb (3) N/A 9.0 ppb (9) N/A N/A 17.0 ppb (16) N/A 30.6 μg/m3 (29) 10.0 μg/m3 (42) 42.0
 
Feb. 28, 2021, 2 p.m. 13.7 ppb (13) 2.6 ppb (3) N/A 11.0 ppb (11) N/A N/A 14.0 ppb (13) N/A 26.4 μg/m3 (25) 18.0 μg/m3 (64) 64.0
 
Feb. 28, 2021, 1 p.m. 11.7 ppb (12) 2.5 ppb (3) N/A 9.0 ppb (9) N/A N/A 14.0 ppb (13) N/A 31.3 μg/m3 (29) 11.0 μg/m3 (46) 46.0
 
Feb. 28, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 24.8 μg/m3 (23) 14.0 μg/m3 (55) 55.0
 
Feb. 28, 2021, 11 a.m. 10.5 ppb (10) 2.7 ppb (3) N/A 8.0 ppb (8) N/A N/A 17.0 ppb (16) N/A 27.4 μg/m3 (26) 14.0 μg/m3 (55) 55.0
 
Feb. 28, 2021, 10 a.m. 8.9 ppb (9) 1.9 ppb (2) N/A 7.0 ppb (7) N/A N/A 18.0 ppb (17) N/A 28.9 μg/m3 (27) 12.0 μg/m3 (50) 50.0
 
Feb. 28, 2021, 9 a.m. 9.1 ppb (9) 1.5 ppb (2) N/A 8.0 ppb (8) N/A N/A 17.0 ppb (16) N/A 46.3 μg/m3 (43) 21.0 μg/m3 (70) 70.0
 
Feb. 28, 2021, 8 a.m. 12.0 ppb (12) 1.6 ppb (2) N/A 11.0 ppb (11) N/A N/A 12.0 ppb (12) N/A 66.0 μg/m3 (57) 22.0 μg/m3 (72) 72.0
 
Feb. 28, 2021, 7 a.m. 20.4 ppb (20) 2.6 ppb (3) N/A 18.0 ppb (17) N/A N/A 8.0 ppb (8) N/A 72.8 μg/m3 (60) 21.0 μg/m3 (70) 70.0
 
Feb. 28, 2021, 6 a.m. 37.3 ppb (36) 8.5 ppb (9) N/A 29.0 ppb (28) N/A N/A 3.0 ppb (3) N/A 74.9 μg/m3 (61) 23.0 μg/m3 (74) 74.0
 
Feb. 28, 2021, 5 a.m. 40.9 ppb (39) 8.7 ppb (9) N/A 32.0 ppb (31) N/A N/A 3.0 ppb (3) N/A 74.2 μg/m3 (61) 35.0 μg/m3 (100) 100.0
 
Feb. 28, 2021, 4 a.m. 31.9 ppb (31) 4.4 ppb (5) N/A 28.0 ppb (27) N/A N/A 9.0 ppb (9) N/A 57.4 μg/m3 (53) 17.0 μg/m3 (62) 62.0
 
Feb. 28, 2021, 3 a.m. 17.1 ppb (17) 3.2 ppb (4) N/A 14.0 ppb (14) N/A N/A 24.0 ppb (23) N/A 38.6 μg/m3 (36) 10.0 μg/m3 (42) 42.0
 
Feb. 28, 2021, 2 a.m. 9.4 ppb (9) 0.6 ppb (1) N/A 9.0 ppb (9) N/A N/A 29.0 ppb (27) N/A 38.5 μg/m3 (36) 14.0 μg/m3 (55) 55.0
 
Feb. 28, 2021, 1 a.m. 4.0 ppb (4) 0.3 ppb (1) N/A 4.0 ppb (4) N/A N/A 39.0 ppb (37) N/A 29.4 μg/m3 (28) 6.0 μg/m3 (25) 37.0
 
Feb. 28, 2021, midnight 2.6 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (38) N/A 28.1 μg/m3 (27) 6.0 μg/m3 (25) 38.0
 
Feb. 27, 2021, 11 p.m. 2.8 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (38) N/A 26.6 μg/m3 (25) 3.0 μg/m3 (13) 38.0
 
Feb. 27, 2021, 10 p.m. 3.8 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (36) N/A 31.0 μg/m3 (29) 4.0 μg/m3 (17) 36.0
 
Feb. 27, 2021, 9 p.m. 4.1 ppb (4) 1.2 ppb (2) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (33) N/A 26.5 μg/m3 (25) 7.0 μg/m3 (30) 33.0
 
Feb. 27, 2021, 8 p.m. 4.0 ppb (4) 1.3 ppb (2) N/A 3.0 ppb (3) N/A N/A 33.0 ppb (31) N/A 24.7 μg/m3 (23) 5.0 μg/m3 (21) 31.0
 
Feb. 27, 2021, 7 p.m. 4.2 ppb (4) 1.5 ppb (2) N/A 3.0 ppb (3) N/A N/A 30.0 ppb (28) N/A 21.5 μg/m3 (20) 7.0 μg/m3 (30) 30.0
 
Feb. 27, 2021, 6 p.m. 5.4 ppb (6) 2.2 ppb (3) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (24) N/A 23.4 μg/m3 (22) 7.0 μg/m3 (30) 30.0
 
Feb. 27, 2021, 5 p.m. 7.0 ppb (7) 3.1 ppb (3) N/A 4.0 ppb (4) N/A N/A 21.0 ppb (20) N/A 19.5 μg/m3 (19) 8.0 μg/m3 (34) 34.0
 
Feb. 27, 2021, 4 p.m. 8.1 ppb (8) 3.3 ppb (4) N/A 5.0 ppb (5) N/A N/A 18.0 ppb (17) N/A 29.7 μg/m3 (28) 8.0 μg/m3 (34) 34.0
 
Feb. 27, 2021, 3 p.m. 15.1 ppb (15) 4.8 ppb (5) N/A 10.0 ppb (10) N/A N/A 12.0 ppb (12) N/A 30.2 μg/m3 (28) 14.0 μg/m3 (55) 55.0
 
Feb. 27, 2021, 2 p.m. 16.8 ppb (16) 3.6 ppb (4) N/A 13.0 ppb (13) N/A N/A 8.0 ppb (8) N/A 34.4 μg/m3 (32) 14.0 μg/m3 (55) 55.0
 
Feb. 27, 2021, 1 p.m. 11.4 ppb (11) 1.4 ppb (2) N/A 10.0 ppb (10) N/A N/A 11.0 ppb (11) N/A 24.9 μg/m3 (24) 15.0 μg/m3 (58) 58.0
 
Feb. 27, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (32) 13.0 μg/m3 (53) 53.0
 
Feb. 27, 2021, 11 a.m. 14.1 ppb (14) 1.6 ppb (2) N/A 13.0 ppb (13) N/A N/A 13.0 ppb (13) N/A 28.1 μg/m3 (27) 13.0 μg/m3 (53) 53.0
 
Feb. 27, 2021, 10 a.m. 18.0 ppb (17) 1.7 ppb (2) N/A 16.0 ppb (16) N/A N/A 11.0 ppb (11) N/A 44.3 μg/m3 (42) 24.0 μg/m3 (77) 77.0
 
Feb. 27, 2021, 9 a.m. 18.8 ppb (18) 1.4 ppb (2) N/A 17.0 ppb (17) N/A N/A 13.0 ppb (13) N/A 49.9 μg/m3 (47) 30.0 μg/m3 (89) 89.0
 
Feb. 27, 2021, 8 a.m. 19.4 ppb (19) 2.5 ppb (3) N/A 17.0 ppb (17) N/A N/A 17.0 ppb (16) N/A 50.0 μg/m3 (47) 31.0 μg/m3 (91) 91.0
 
Feb. 27, 2021, 7 a.m. 29.3 ppb (28) 3.5 ppb (4) N/A 26.0 ppb (25) N/A N/A 6.0 ppb (6) N/A 68.9 μg/m3 (58) 31.0 μg/m3 (91) 91.0
 
Feb. 27, 2021, 6 a.m. 27.2 ppb (26) 3.0 ppb (3) N/A 24.0 ppb (23) N/A N/A 12.0 ppb (12) N/A 65.6 μg/m3 (57) 33.0 μg/m3 (95) 95.0
 
Feb. 27, 2021, 5 a.m. 19.6 ppb (19) 1.5 ppb (2) N/A 18.0 ppb (17) N/A N/A 19.0 ppb (18) N/A 71.7 μg/m3 (60) 28.0 μg/m3 (85) 85.0
 
Feb. 27, 2021, 4 a.m. 21.0 ppb (20) 1.4 ppb (2) N/A 20.0 ppb (19) N/A N/A 23.0 ppb (22) N/A 62.2 μg/m3 (55) 30.0 μg/m3 (89) 89.0
 
Feb. 27, 2021, 3 a.m. 22.6 ppb (22) 1.5 ppb (2) N/A 21.0 ppb (20) N/A N/A 26.0 ppb (25) N/A 76.2 μg/m3 (62) 24.0 μg/m3 (77) 77.0
 
Feb. 27, 2021, 2 a.m. 18.5 ppb (18) 0.8 ppb (1) N/A 18.0 ppb (17) N/A N/A 32.0 ppb (30) N/A 59.6 μg/m3 (54) 17.0 μg/m3 (62) 62.0
 
Feb. 27, 2021, 1 a.m. 8.5 ppb (9) 0.6 ppb (1) N/A 8.0 ppb (8) N/A N/A 45.0 ppb (42) N/A 48.1 μg/m3 (45) 13.0 μg/m3 (53) 53.0
 
Feb. 27, 2021, midnight 4.9 ppb (5) 0.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 49.0 ppb (46) N/A 45.6 μg/m3 (43) 17.0 μg/m3 (62) 62.0
 
Feb. 26, 2021, 11 p.m. 4.6 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 49.0 ppb (46) N/A 48.9 μg/m3 (46) 15.0 μg/m3 (58) 58.0
 
Feb. 26, 2021, 10 p.m. 4.4 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 48.0 ppb (45) N/A 44.6 μg/m3 (42) 12.0 μg/m3 (50) 50.0
 
Feb. 26, 2021, 9 p.m. 6.5 ppb (7) 1.3 ppb (2) N/A 5.0 ppb (5) N/A N/A 46.0 ppb (43) N/A 53.5 μg/m3 (50) 12.0 μg/m3 (50) 50.0
 
Feb. 26, 2021, 8 p.m. 7.1 ppb (7) 1.5 ppb (2) N/A 6.0 ppb (6) N/A N/A 43.0 ppb (40) N/A 55.3 μg/m3 (52) 15.0 μg/m3 (58) 58.0
 
Feb. 26, 2021, 7 p.m. 7.7 ppb (8) 2.0 ppb (2) N/A 6.0 ppb (6) N/A N/A 39.0 ppb (37) N/A N/A 16.0 μg/m3 (60) 60.0
 
Feb. 26, 2021, 6 p.m. 7.2 ppb (7) 1.8 ppb (2) N/A 5.0 ppb (5) N/A N/A 34.0 ppb (32) N/A 48.6 μg/m3 (45) N/A 45.0
 
Feb. 26, 2021, 5 p.m. 9.4 ppb (9) 2.5 ppb (3) N/A 7.0 ppb (7) N/A N/A 30.0 ppb (28) N/A 43.1 μg/m3 (40) 8.0 μg/m3 (34) 40.0
 
Feb. 26, 2021, 4 p.m. 20.3 ppb (20) 7.0 ppb (7) N/A 13.0 ppb (13) N/A N/A 19.0 ppb (18) N/A 53.2 μg/m3 (50) 11.0 μg/m3 (46) 50.0
 
Feb. 26, 2021, 3 p.m. 35.4 ppb (34) 14.1 ppb (14) N/A 21.0 ppb (20) N/A N/A 7.0 ppb (7) N/A 60.0 μg/m3 (54) 16.0 μg/m3 (60) 60.0
 
Feb. 26, 2021, 2 p.m. 30.6 ppb (29) 7.7 ppb (8) N/A 23.0 ppb (22) N/A N/A 4.0 ppb (4) N/A 53.7 μg/m3 (50) 11.0 μg/m3 (46) 50.0
 
Feb. 26, 2021, 1 p.m. 18.6 ppb (18) 3.7 ppb (4) N/A 15.0 ppb (15) N/A N/A 9.0 ppb (9) N/A 49.0 μg/m3 (46) 13.0 μg/m3 (53) 53.0
 
Feb. 26, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 53.3 μg/m3 (50) 11.0 μg/m3 (46) 50.0
 
Feb. 26, 2021, 11 a.m. 8.6 ppb (9) 1.2 ppb (2) N/A 7.0 ppb (7) N/A N/A 18.0 ppb (17) N/A 31.6 μg/m3 (30) 9.0 μg/m3 (38) 38.0
 
Feb. 26, 2021, 10 a.m. 8.8 ppb (9) 1.1 ppb (2) N/A 8.0 ppb (8) N/A N/A 20.0 ppb (19) N/A 36.2 μg/m3 (34) 8.0 μg/m3 (34) 34.0
 
Feb. 26, 2021, 9 a.m. 9.3 ppb (9) 1.1 ppb (2) N/A 8.0 ppb (8) N/A N/A 19.0 ppb (18) N/A 46.0 μg/m3 (43) 10.0 μg/m3 (42) 43.0
 
Feb. 26, 2021, 8 a.m. 8.2 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (7) N/A N/A 22.0 ppb (21) N/A 45.8 μg/m3 (43) 14.0 μg/m3 (55) 55.0
 
Feb. 26, 2021, 7 a.m. 10.8 ppb (11) 1.3 ppb (2) N/A 10.0 ppb (10) N/A N/A 22.0 ppb (21) N/A 44.3 μg/m3 (42) 12.0 μg/m3 (50) 50.0
 
Feb. 26, 2021, 6 a.m. 14.2 ppb (14) 1.2 ppb (2) N/A 13.0 ppb (13) N/A N/A 21.0 ppb (20) N/A 48.1 μg/m3 (45) 12.0 μg/m3 (50) 50.0
 
Feb. 26, 2021, 5 a.m. 40.0 ppb (38) 8.5 ppb (9) N/A 32.0 ppb (31) N/A N/A 6.0 ppb (6) N/A 71.5 μg/m3 (60) 16.0 μg/m3 (60) 60.0
 
Feb. 26, 2021, 4 a.m. 53.5 ppb (51) 14.1 ppb (14) N/A 39.0 ppb (37) N/A N/A 2.0 ppb (2) N/A 87.1 μg/m3 (67) 19.0 μg/m3 (66) 67.0
 
Feb. 26, 2021, 3 a.m. 34.2 ppb (33) 4.3 ppb (5) N/A 30.0 ppb (29) N/A N/A 14.0 ppb (13) N/A 56.1 μg/m3 (52) 12.0 μg/m3 (50) 52.0
 
Feb. 26, 2021, 2 a.m. 17.6 ppb (17) 0.7 ppb (1) N/A 17.0 ppb (17) N/A N/A 29.0 ppb (27) N/A 56.4 μg/m3 (52) 11.0 μg/m3 (46) 52.0
 
Feb. 26, 2021, 1 a.m. 6.9 ppb (7) 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A 42.0 ppb (39) N/A 50.1 μg/m3 (47) 10.0 μg/m3 (42) 47.0
 
Feb. 26, 2021, midnight 4.1 ppb (4) 0.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 45.0 ppb (42) N/A 54.6 μg/m3 (51) 9.0 μg/m3 (38) 51.0
 
Feb. 25, 2021, 11 p.m. 4.3 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 44.0 ppb (41) N/A 46.3 μg/m3 (43) 8.0 μg/m3 (34) 43.0
 
Feb. 25, 2021, 10 p.m. 4.2 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (41) N/A 45.1 μg/m3 (42) 8.0 μg/m3 (34) 42.0
 
Feb. 25, 2021, 9 p.m. 4.8 ppb (5) 1.1 ppb (2) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (38) N/A 42.3 μg/m3 (40) 9.0 μg/m3 (38) 40.0
 
Feb. 25, 2021, 8 p.m. 5.6 ppb (6) 1.4 ppb (2) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (36) N/A 48.9 μg/m3 (46) 10.0 μg/m3 (42) 46.0
 
Feb. 25, 2021, 7 p.m. 9.8 ppb (10) 3.2 ppb (4) N/A 7.0 ppb (7) N/A N/A 32.0 ppb (30) N/A 52.8 μg/m3 (49) 10.0 μg/m3 (42) 49.0
 
Feb. 25, 2021, 6 p.m. 12.3 ppb (12) 4.3 ppb (5) N/A 8.0 ppb (8) N/A N/A 24.0 ppb (23) N/A 71.6 μg/m3 (60) 10.0 μg/m3 (42) 60.0
 
Feb. 25, 2021, 5 p.m. 11.3 ppb (11) 4.3 ppb (5) N/A 7.0 ppb (7) N/A N/A 21.0 ppb (20) N/A 70.2 μg/m3 (59) 18.0 μg/m3 (64) 64.0
 
Feb. 25, 2021, 4 p.m. 17.7 ppb (17) 7.2 ppb (7) N/A 11.0 ppb (11) N/A N/A 15.0 ppb (14) N/A 69.9 μg/m3 (59) 14.0 μg/m3 (55) 59.0
 
Feb. 25, 2021, 3 p.m. 24.1 ppb (23) 9.6 ppb (10) N/A 15.0 ppb (15) N/A N/A 8.0 ppb (8) N/A 74.9 μg/m3 (61) 15.0 μg/m3 (58) 61.0
 
Feb. 25, 2021, 2 p.m. 43.3 ppb (41) 21.9 ppb (21) N/A 22.0 ppb (21) N/A N/A 2.0 ppb (2) N/A 84.7 μg/m3 (66) 12.0 μg/m3 (50) 66.0
 
Feb. 25, 2021, 1 p.m. 30.5 ppb (29) 9.9 ppb (10) N/A 21.0 ppb (20) N/A N/A 2.0 ppb (2) N/A 83.9 μg/m3 (66) 14.0 μg/m3 (55) 66.0
 
Feb. 25, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 73.7 μg/m3 (61) 9.0 μg/m3 (38) 61.0
 
Feb. 25, 2021, 11 a.m. 16.1 ppb (16) 2.4 ppb (3) N/A 14.0 ppb (14) N/A N/A 13.0 ppb (13) N/A 42.6 μg/m3 (40) 11.0 μg/m3 (46) 46.0
 
Feb. 25, 2021, 10 a.m. 12.0 ppb (12) 0.9 ppb (1) N/A 11.0 ppb (11) N/A N/A 19.0 ppb (18) N/A 55.0 μg/m3 (51) 10.0 μg/m3 (42) 51.0
 
Feb. 25, 2021, 9 a.m. 14.9 ppb (15) 1.1 ppb (2) N/A 14.0 ppb (14) N/A N/A 14.0 ppb (13) N/A 49.6 μg/m3 (46) 10.0 μg/m3 (42) 46.0
 
Feb. 25, 2021, 8 a.m. 13.6 ppb (13) 2.5 ppb (3) N/A 11.0 ppb (11) N/A N/A 19.0 ppb (18) N/A 45.0 μg/m3 (42) 7.0 μg/m3 (30) 42.0
 
Feb. 25, 2021, 7 a.m. 10.5 ppb (10) 0.7 ppb (1) N/A 10.0 ppb (10) N/A N/A 20.0 ppb (19) N/A 58.8 μg/m3 (53) 10.0 μg/m3 (42) 53.0
 
Feb. 25, 2021, 6 a.m. 7.7 ppb (8) 0.5 ppb (1) N/A 7.0 ppb (7) N/A N/A 25.0 ppb (24) N/A 79.7 μg/m3 (64) 12.0 μg/m3 (50) 64.0
 
Feb. 25, 2021, 5 a.m. 6.1 ppb (6) 0.5 ppb (1) N/A 6.0 ppb (6) N/A N/A 28.0 ppb (26) N/A 132.7 μg/m3 (90) 10.0 μg/m3 (42) 90.0
 
Feb. 25, 2021, 4 a.m. 8.9 ppb (9) 0.6 ppb (1) N/A 8.0 ppb (8) N/A N/A 28.0 ppb (26) N/A 64.1 μg/m3 (56) 11.0 μg/m3 (46) 56.0
 
Feb. 25, 2021, 3 a.m. 9.1 ppb (9) 1.0 ppb (1) N/A 8.0 ppb (8) N/A N/A 29.0 ppb (27) N/A 39.5 μg/m3 (37) 10.0 μg/m3 (42) 42.0
 
Feb. 25, 2021, 2 a.m. 7.3 ppb (7) 0.7 ppb (1) N/A 7.0 ppb (7) N/A N/A 35.0 ppb (33) N/A 45.1 μg/m3 (42) 9.0 μg/m3 (38) 42.0
 
Feb. 25, 2021, 1 a.m. 7.0 ppb (7) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 42.0 ppb (39) N/A 46.7 μg/m3 (44) 13.0 μg/m3 (53) 53.0
 
Feb. 25, 2021, midnight 6.0 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 48.0 ppb (45) N/A 41.7 μg/m3 (39) 13.0 μg/m3 (53) 53.0
 
Feb. 24, 2021, 11 p.m. 5.4 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 50.0 ppb (47) N/A 42.5 μg/m3 (40) 17.0 μg/m3 (62) 62.0
 
Feb. 24, 2021, 10 p.m. 6.6 ppb (7) 1.2 ppb (2) N/A 5.0 ppb (5) N/A N/A 47.0 ppb (44) N/A 48.3 μg/m3 (45) 20.0 μg/m3 (68) 68.0
 
Feb. 24, 2021, 9 p.m. 7.9 ppb (8) 1.7 ppb (2) N/A 6.0 ppb (6) N/A N/A 44.0 ppb (41) N/A 44.4 μg/m3 (42) 19.0 μg/m3 (66) 66.0
 
Feb. 24, 2021, 8 p.m. 6.9 ppb (7) 1.6 ppb (2) N/A 5.0 ppb (5) N/A N/A 42.0 ppb (39) N/A 37.6 μg/m3 (35) 18.0 μg/m3 (64) 64.0
 
Feb. 24, 2021, 7 p.m. 7.7 ppb (8) 2.0 ppb (2) N/A 6.0 ppb (6) N/A N/A 36.0 ppb (34) N/A 48.3 μg/m3 (45) 20.0 μg/m3 (68) 68.0
 
Feb. 24, 2021, 6 p.m. 11.6 ppb (11) 3.6 ppb (4) N/A 8.0 ppb (8) N/A N/A 29.0 ppb (27) N/A 55.0 μg/m3 (51) 22.0 μg/m3 (72) 72.0
 
Feb. 24, 2021, 5 p.m. 13.4 ppb (13) 4.7 ppb (5) N/A 9.0 ppb (9) N/A N/A 23.0 ppb (22) N/A 43.3 μg/m3 (41) 22.0 μg/m3 (72) 72.0
 
Feb. 24, 2021, 4 p.m. 17.0 ppb (17) 5.7 ppb (6) N/A 11.0 ppb (11) N/A N/A 17.0 ppb (16) N/A 46.8 μg/m3 (44) 16.0 μg/m3 (60) 60.0
 
Feb. 24, 2021, 3 p.m. 21.4 ppb (21) 6.9 ppb (7) N/A 15.0 ppb (15) N/A N/A 10.0 ppb (10) N/A 36.2 μg/m3 (34) 20.0 μg/m3 (68) 68.0
 
Feb. 24, 2021, 2 p.m. 25.8 ppb (25) 7.9 ppb (8) N/A 18.0 ppb (17) N/A N/A 5.0 ppb (5) N/A 50.1 μg/m3 (47) 20.0 μg/m3 (68) 68.0
 
Feb. 24, 2021, 1 p.m. 16.4 ppb (16) 3.2 ppb (4) N/A 13.0 ppb (13) N/A N/A 7.0 ppb (7) N/A 36.3 μg/m3 (34) 24.0 μg/m3 (77) 77.0
 
Feb. 24, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 73.2 μg/m3 (61) 21.0 μg/m3 (70) 70.0
 
Feb. 24, 2021, 11 a.m. 7.7 ppb (8) 1.4 ppb (2) N/A 6.0 ppb (6) N/A N/A 17.0 ppb (16) N/A 15.9 μg/m3 (15) 9.0 μg/m3 (38) 38.0
 
Feb. 24, 2021, 10 a.m. 20.5 ppb (20) 3.8 ppb (4) N/A 17.0 ppb (17) N/A N/A 5.0 ppb (5) N/A 36.2 μg/m3 (34) 21.0 μg/m3 (70) 70.0
 
Feb. 24, 2021, 9 a.m. 19.3 ppb (19) 2.5 ppb (3) N/A 17.0 ppb (17) N/A N/A 6.0 ppb (6) N/A 47.3 μg/m3 (44) 20.0 μg/m3 (68) 68.0
 
Feb. 24, 2021, 8 a.m. 16.3 ppb (16) 1.9 ppb (2) N/A 14.0 ppb (14) N/A N/A 11.0 ppb (11) N/A 38.8 μg/m3 (36) 22.0 μg/m3 (72) 72.0
 
Feb. 24, 2021, 7 a.m. 15.8 ppb (15) 1.9 ppb (2) N/A 14.0 ppb (14) N/A N/A 16.0 ppb (15) N/A 31.6 μg/m3 (30) 12.0 μg/m3 (50) 50.0
 
Feb. 24, 2021, 6 a.m. 16.6 ppb (16) 1.8 ppb (2) N/A 15.0 ppb (15) N/A N/A 17.0 ppb (16) N/A 37.8 μg/m3 (35) 18.0 μg/m3 (64) 64.0
 
Feb. 24, 2021, 5 a.m. 40.0 ppb (38) 7.8 ppb (8) N/A 32.0 ppb (31) N/A N/A 5.0 ppb (5) N/A 65.0 μg/m3 (56) 24.0 μg/m3 (77) 77.0
 
Feb. 24, 2021, 4 a.m. 62.0 ppb (60) 25.3 ppb (24) N/A 37.0 ppb (35) N/A N/A 1.0 ppb (1) N/A 75.5 μg/m3 (62) 23.0 μg/m3 (74) 74.0
 
Feb. 24, 2021, 3 a.m. 49.7 ppb (47) 11.6 ppb (11) N/A 38.0 ppb (36) N/A N/A 5.0 ppb (5) N/A 59.7 μg/m3 (54) 21.0 μg/m3 (70) 70.0
 
Feb. 24, 2021, 2 a.m. 21.2 ppb (20) 1.4 ppb (2) N/A 20.0 ppb (19) N/A N/A 26.0 ppb (25) N/A 42.8 μg/m3 (40) 15.0 μg/m3 (58) 58.0
 
Feb. 24, 2021, 1 a.m. 8.8 ppb (9) 0.7 ppb (1) N/A 8.0 ppb (8) N/A N/A 40.0 ppb (38) N/A 30.8 μg/m3 (29) 12.0 μg/m3 (50) 50.0
 
Feb. 24, 2021, midnight 5.7 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 44.0 ppb (41) N/A 29.3 μg/m3 (28) 13.0 μg/m3 (53) 53.0
 
Feb. 23, 2021, 11 p.m. 7.6 ppb (8) 1.3 ppb (2) N/A 6.0 ppb (6) N/A N/A 42.0 ppb (39) N/A 45.6 μg/m3 (43) 15.0 μg/m3 (58) 58.0
 
Feb. 23, 2021, 10 p.m. 4.9 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (38) N/A 31.4 μg/m3 (30) 14.0 μg/m3 (55) 55.0
 
Feb. 23, 2021, 9 p.m. 4.6 ppb (5) 1.1 ppb (2) N/A 4.0 ppb (4) N/A N/A 40.0 ppb (38) N/A 27.8 μg/m3 (26) 11.0 μg/m3 (46) 46.0
 
Feb. 23, 2021, 8 p.m. 6.9 ppb (7) 1.9 ppb (2) N/A 5.0 ppb (5) N/A N/A 37.0 ppb (35) N/A 34.5 μg/m3 (32) 10.0 μg/m3 (42) 42.0
 
Feb. 23, 2021, 7 p.m. 9.5 ppb (9) 2.8 ppb (3) N/A 7.0 ppb (7) N/A N/A 33.0 ppb (31) N/A 36.0 μg/m3 (34) 14.0 μg/m3 (55) 55.0
 
Feb. 23, 2021, 6 p.m. 12.6 ppb (12) 3.8 ppb (4) N/A 9.0 ppb (9) N/A N/A 28.0 ppb (26) N/A 43.1 μg/m3 (40) 20.0 μg/m3 (68) 68.0
 
Feb. 23, 2021, 5 p.m. 13.6 ppb (13) 4.5 ppb (5) N/A 9.0 ppb (9) N/A N/A 25.0 ppb (24) N/A 51.6 μg/m3 (48) 17.0 μg/m3 (62) 62.0
 
Feb. 23, 2021, 4 p.m. 14.2 ppb (14) 5.0 ppb (5) N/A 9.0 ppb (9) N/A N/A 18.0 ppb (17) N/A 42.1 μg/m3 (39) 13.0 μg/m3 (53) 53.0
 
Feb. 23, 2021, 3 p.m. 19.9 ppb (19) 6.9 ppb (7) N/A 13.0 ppb (13) N/A N/A 10.0 ppb (10) N/A 80.0 μg/m3 (64) 17.0 μg/m3 (62) 64.0
 
Feb. 23, 2021, 2 p.m. 32.7 ppb (31) 12.2 ppb (12) N/A 20.0 ppb (19) N/A N/A 4.0 ppb (4) N/A 41.7 μg/m3 (39) 11.0 μg/m3 (46) 46.0
 
Feb. 23, 2021, 1 p.m. 35.1 ppb (34) 14.5 ppb (14) N/A 21.0 ppb (20) N/A N/A 1.0 ppb (1) N/A 35.4 μg/m3 (33) 12.0 μg/m3 (50) 50.0
 
Feb. 23, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 22.4 μg/m3 (21) 9.0 μg/m3 (38) 38.0
 
Feb. 23, 2021, 11 a.m. 10.8 ppb (11) 1.6 ppb (2) N/A 9.0 ppb (9) N/A N/A 13.0 ppb (13) N/A 16.1 μg/m3 (15) 7.0 μg/m3 (30) 30.0
 
Feb. 23, 2021, 10 a.m. 11.9 ppb (12) 2.1 ppb (2) N/A 10.0 ppb (10) N/A N/A 14.0 ppb (13) N/A 20.4 μg/m3 (19) 8.0 μg/m3 (34) 34.0
 
Feb. 23, 2021, 9 a.m. 11.5 ppb (11) 1.5 ppb (2) N/A 10.0 ppb (10) N/A N/A 13.0 ppb (13) N/A 33.3 μg/m3 (31) 16.0 μg/m3 (60) 60.0
 
Feb. 23, 2021, 8 a.m. 11.8 ppb (12) 1.6 ppb (2) N/A 10.0 ppb (10) N/A N/A 15.0 ppb (14) N/A 29.3 μg/m3 (28) 14.0 μg/m3 (55) 55.0
 
Feb. 23, 2021, 7 a.m. 10.2 ppb (10) 1.7 ppb (2) N/A 9.0 ppb (9) N/A N/A 18.0 ppb (17) N/A 24.5 μg/m3 (23) 11.0 μg/m3 (46) 46.0
 
Feb. 23, 2021, 6 a.m. 14.5 ppb (14) 1.6 ppb (2) N/A 13.0 ppb (13) N/A N/A 16.0 ppb (15) N/A 36.9 μg/m3 (35) 14.0 μg/m3 (55) 55.0
 
Feb. 23, 2021, 5 a.m. 22.1 ppb (21) 1.8 ppb (2) N/A 20.0 ppb (19) N/A N/A 12.0 ppb (12) N/A 47.4 μg/m3 (44) 21.0 μg/m3 (70) 70.0
 
Feb. 23, 2021, 4 a.m. 17.5 ppb (17) 1.6 ppb (2) N/A 16.0 ppb (16) N/A N/A 21.0 ppb (20) N/A 45.6 μg/m3 (43) 20.0 μg/m3 (68) 68.0
 
Feb. 23, 2021, 3 a.m. 21.4 ppb (21) 1.3 ppb (2) N/A 20.0 ppb (19) N/A N/A 21.0 ppb (20) N/A 50.9 μg/m3 (48) 18.0 μg/m3 (64) 64.0
 
Feb. 23, 2021, 2 a.m. 19.7 ppb (19) 1.5 ppb (2) N/A 18.0 ppb (17) N/A N/A 25.0 ppb (24) N/A 40.6 μg/m3 (38) 16.0 μg/m3 (60) 60.0
 
Feb. 23, 2021, 1 a.m. 8.8 ppb (9) 0.6 ppb (1) N/A 8.0 ppb (8) N/A N/A 38.0 ppb (36) N/A 34.4 μg/m3 (32) 16.0 μg/m3 (60) 60.0
 
Feb. 23, 2021, midnight 5.3 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 43.0 ppb (40) N/A 25.3 μg/m3 (24) 9.0 μg/m3 (38) 40.0
 
Feb. 22, 2021, 11 p.m. 4.9 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 48.0 ppb (45) N/A 33.0 μg/m3 (31) 15.0 μg/m3 (58) 58.0
 
Feb. 22, 2021, 10 p.m. 5.5 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 49.0 ppb (46) N/A 34.5 μg/m3 (32) 17.0 μg/m3 (62) 62.0
 
Feb. 22, 2021, 9 p.m. 4.7 ppb (5) 1.2 ppb (2) N/A 4.0 ppb (4) N/A N/A 39.0 ppb (37) N/A 23.6 μg/m3 (22) 6.0 μg/m3 (25) 37.0
 
Feb. 22, 2021, 8 p.m. 5.7 ppb (6) 1.4 ppb (2) N/A 4.0 ppb (4) N/A N/A 39.0 ppb (37) N/A 26.2 μg/m3 (25) 8.0 μg/m3 (34) 37.0
 
Feb. 22, 2021, 7 p.m. 8.1 ppb (8) 2.6 ppb (3) N/A 5.0 ppb (5) N/A N/A 32.0 ppb (30) N/A 21.4 μg/m3 (20) 7.0 μg/m3 (30) 30.0
 
Feb. 22, 2021, 6 p.m. 8.6 ppb (9) 2.9 ppb (3) N/A 6.0 ppb (6) N/A N/A 27.0 ppb (25) N/A 23.3 μg/m3 (22) 5.0 μg/m3 (21) 25.0
 
Feb. 22, 2021, 5 p.m. 8.4 ppb (8) 3.2 ppb (4) N/A 5.0 ppb (5) N/A N/A 24.0 ppb (23) N/A 19.1 μg/m3 (18) 1.0 μg/m3 (5) 23.0
 
Feb. 22, 2021, 4 p.m. 14.8 ppb (14) 6.4 ppb (7) N/A 9.0 ppb (9) N/A N/A 15.0 ppb (14) N/A 17.7 μg/m3 (17) 5.0 μg/m3 (21) 21.0
 
Feb. 22, 2021, 3 p.m. 33.5 ppb (32) 15.2 ppb (15) N/A 18.0 ppb (17) N/A N/A 7.0 ppb (7) N/A 55.8 μg/m3 (52) 7.0 μg/m3 (30) 52.0
 
Feb. 22, 2021, 2 p.m. 27.3 ppb (26) 7.6 ppb (8) N/A 20.0 ppb (19) N/A N/A 4.0 ppb (4) N/A 38.3 μg/m3 (36) 6.0 μg/m3 (25) 36.0
 
Feb. 22, 2021, 1 p.m. 18.8 ppb (18) 3.4 ppb (4) N/A 15.0 ppb (15) N/A N/A 7.0 ppb (7) N/A 23.0 μg/m3 (22) 5.0 μg/m3 (21) 22.0
 
Feb. 22, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 15.3 μg/m3 (15) 4.0 μg/m3 (17) 17.0
 
Feb. 22, 2021, 11 a.m. 14.3 ppb (14) 3.3 ppb (4) N/A 11.0 ppb (11) N/A N/A 10.0 ppb (10) N/A 13.6 μg/m3 (13) 7.0 μg/m3 (30) 30.0
 
Feb. 22, 2021, 10 a.m. 15.0 ppb (15) 2.1 ppb (2) N/A 13.0 ppb (13) N/A N/A 9.0 ppb (9) N/A 18.4 μg/m3 (18) 14.0 μg/m3 (55) 55.0
 
Feb. 22, 2021, 9 a.m. 13.3 ppb (13) 2.5 ppb (3) N/A 11.0 ppb (11) N/A N/A 12.0 ppb (12) N/A 42.0 μg/m3 (39) 13.0 μg/m3 (53) 53.0
 
Feb. 22, 2021, 8 a.m. 14.3 ppb (14) 1.6 ppb (2) N/A 13.0 ppb (13) N/A N/A 10.0 ppb (10) N/A 26.2 μg/m3 (25) 13.0 μg/m3 (53) 53.0
 
Feb. 22, 2021, 7 a.m. 21.4 ppb (21) 3.1 ppb (3) N/A 18.0 ppb (17) N/A N/A 7.0 ppb (7) N/A 31.2 μg/m3 (29) 16.0 μg/m3 (60) 60.0
 
Feb. 22, 2021, 6 a.m. 35.0 ppb (34) 7.9 ppb (8) N/A 27.0 ppb (26) N/A N/A 2.0 ppb (2) N/A 52.1 μg/m3 (49) 27.0 μg/m3 (83) 83.0
 
Feb. 22, 2021, 5 a.m. 30.3 ppb (29) 4.7 ppb (5) N/A 26.0 ppb (25) N/A N/A 5.0 ppb (5) N/A 43.5 μg/m3 (41) 26.0 μg/m3 (81) 81.0
 
Feb. 22, 2021, 4 a.m. 24.7 ppb (24) 2.3 ppb (3) N/A 22.0 ppb (21) N/A N/A 12.0 ppb (12) N/A 40.0 μg/m3 (38) 16.0 μg/m3 (60) 60.0
 
Feb. 22, 2021, 3 a.m. 16.0 ppb (16) 1.5 ppb (2) N/A 14.0 ppb (14) N/A N/A 22.0 ppb (21) N/A 28.6 μg/m3 (27) 11.0 μg/m3 (46) 46.0
 
Feb. 22, 2021, 2 a.m. 11.5 ppb (11) 0.9 ppb (1) N/A 11.0 ppb (11) N/A N/A 28.0 ppb (26) N/A 28.2 μg/m3 (27) 11.0 μg/m3 (46) 46.0
 
Feb. 22, 2021, 1 a.m. 5.0 ppb (5) 0.5 ppb (1) N/A 5.0 ppb (5) N/A N/A 36.0 ppb (34) N/A 20.1 μg/m3 (19) 7.0 μg/m3 (30) 34.0
 
Feb. 22, 2021, midnight 3.5 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (38) N/A 9.2 μg/m3 (9) 5.0 μg/m3 (21) 38.0
 
Feb. 21, 2021, 11 p.m. 3.3 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 41.0 ppb (38) N/A 10.7 μg/m3 (10) 9.0 μg/m3 (38) 38.0
 
Feb. 21, 2021, 10 p.m. 3.6 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (38) N/A 11.2 μg/m3 (11) 6.0 μg/m3 (25) 38.0