ID: 241

AQSQID: 061072002

Site Name: Visalia - N. Church Street

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

Updated: April 22, 2021, 11:43 a.m.

Location: Visalia (Downtown), CA

Reporting: True, Located: True

Current AQI: 72.0

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
April 22, 2021, 8 a.m. 13.3 ppb (13) 1.1 ppb (2) N/A 12.0 ppb (12) N/A N/A 18.0 ppb (17) N/A 84.9 μg/m3 (66) 22.0 μg/m3 (72) 72.0
 
April 22, 2021, 7 a.m. 11.4 ppb (11) 0.9 ppb (1) N/A 11.0 ppb (11) N/A N/A 24.0 ppb (23) N/A 51.6 μg/m3 (48) 20.0 μg/m3 (68) 68.0
 
April 22, 2021, 6 a.m. 11.7 ppb (12) 0.8 ppb (1) N/A 11.0 ppb (11) N/A N/A 28.0 ppb (26) N/A 62.3 μg/m3 (55) 17.0 μg/m3 (62) 62.0
 
April 22, 2021, 5 a.m. 13.0 ppb (13) 0.8 ppb (1) N/A 12.0 ppb (12) N/A N/A 28.0 ppb (26) N/A 59.7 μg/m3 (54) 24.0 μg/m3 (77) 77.0
 
April 22, 2021, 4 a.m. 12.0 ppb (12) 0.6 ppb (1) N/A 11.0 ppb (11) N/A N/A 35.0 ppb (33) N/A 48.2 μg/m3 (45) 16.0 μg/m3 (60) 60.0
 
April 22, 2021, 3 a.m. 6.5 ppb (7) 0.4 ppb (1) N/A 6.0 ppb (6) N/A N/A 43.0 ppb (40) N/A 47.8 μg/m3 (45) 16.0 μg/m3 (60) 60.0
 
April 22, 2021, 2 a.m. 4.7 ppb (5) 0.4 ppb (1) N/A 4.0 ppb (4) N/A N/A 47.0 ppb (44) N/A 44.8 μg/m3 (42) 17.0 μg/m3 (62) 62.0
 
April 22, 2021, 1 a.m. 3.6 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 48.0 ppb (45) N/A 47.7 μg/m3 (45) 14.0 μg/m3 (55) 55.0
 
April 22, 2021, midnight 3.4 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (43) N/A 48.7 μg/m3 (46) 12.0 μg/m3 (50) 50.0
 
April 21, 2021, 11 p.m. 3.3 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 45.0 ppb (42) N/A 48.3 μg/m3 (45) 9.0 μg/m3 (38) 45.0
 
April 21, 2021, 10 p.m. 3.5 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (41) N/A 55.4 μg/m3 (52) 13.0 μg/m3 (53) 53.0
 
April 21, 2021, 9 p.m. 3.8 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (40) N/A 41.1 μg/m3 (39) 17.0 μg/m3 (62) 62.0
 
April 21, 2021, 8 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (38) N/A 40.5 μg/m3 (38) 13.0 μg/m3 (53) 53.0
 
April 21, 2021, 7 p.m. 3.8 ppb (4) 1.1 ppb (2) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (35) N/A 34.6 μg/m3 (33) 11.0 μg/m3 (46) 46.0
 
April 21, 2021, 6 p.m. 4.0 ppb (4) 1.4 ppb (2) N/A 3.0 ppb (3) N/A N/A 33.0 ppb (31) N/A 36.2 μg/m3 (34) 10.0 μg/m3 (42) 42.0
 
April 21, 2021, 5 p.m. 4.1 ppb (4) 1.6 ppb (2) N/A 3.0 ppb (3) N/A N/A 29.0 ppb (27) N/A 38.6 μg/m3 (36) 7.0 μg/m3 (30) 36.0
 
April 21, 2021, 4 p.m. 4.9 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A N/A 24.0 ppb (23) N/A 29.7 μg/m3 (28) 5.0 μg/m3 (21) 28.0
 
April 21, 2021, 3 p.m. 6.1 ppb (6) 2.4 ppb (3) N/A 4.0 ppb (4) N/A N/A 21.0 ppb (20) N/A 40.8 μg/m3 (38) 7.0 μg/m3 (30) 38.0
 
April 21, 2021, 2 p.m. 7.8 ppb (8) 2.3 ppb (3) N/A 6.0 ppb (6) N/A N/A 16.0 ppb (15) N/A 32.0 μg/m3 (30) 7.0 μg/m3 (30) 30.0
 
April 21, 2021, 1 p.m. 9.8 ppb (10) 1.6 ppb (2) N/A 8.0 ppb (8) N/A N/A 10.0 ppb (10) N/A 30.8 μg/m3 (29) 6.0 μg/m3 (25) 29.0
 
April 21, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 96.2 μg/m3 (72) 9.0 μg/m3 (38) 72.0
 
April 21, 2021, 11 a.m. 7.0 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 20.0 ppb (19) N/A 49.6 μg/m3 (46) 12.0 μg/m3 (50) 50.0
 
April 21, 2021, 10 a.m. 3.5 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 23.0 ppb (22) N/A 52.0 μg/m3 (49) 7.0 μg/m3 (30) 49.0
 
April 21, 2021, 9 a.m. 2.5 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 25.0 ppb (24) N/A 35.3 μg/m3 (33) 7.0 μg/m3 (30) 33.0
 
April 21, 2021, 8 a.m. 2.7 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 25.0 ppb (24) N/A 44.2 μg/m3 (41) 6.0 μg/m3 (25) 41.0
 
April 21, 2021, 7 a.m. 2.8 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 26.0 ppb (25) N/A 55.1 μg/m3 (52) 6.0 μg/m3 (25) 52.0
 
April 21, 2021, 6 a.m. 3.0 ppb (3) 0.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 27.0 ppb (25) N/A 48.5 μg/m3 (45) 7.0 μg/m3 (30) 45.0
 
April 21, 2021, 5 a.m. 3.0 ppb (3) 0.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 31.0 ppb (29) N/A 119.8 μg/m3 (84) 16.0 μg/m3 (60) 84.0
 
April 21, 2021, 4 a.m. 3.7 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (32) N/A 246.3 μg/m3 (147) 17.0 μg/m3 (62) 147.0
 
April 21, 2021, 3 a.m. 6.9 ppb (7) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 35.0 ppb (33) N/A 81.1 μg/m3 (64) 10.0 μg/m3 (42) 64.0
 
April 21, 2021, 2 a.m. 6.3 ppb (6) 0.4 ppb (1) N/A 6.0 ppb (6) N/A N/A 46.0 ppb (43) N/A 42.5 μg/m3 (40) 9.0 μg/m3 (38) 43.0
 
April 21, 2021, 1 a.m. 3.3 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 51.0 ppb (48) N/A 35.4 μg/m3 (33) 9.0 μg/m3 (38) 48.0
 
April 21, 2021, midnight 3.5 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 52.0 ppb (49) N/A 37.8 μg/m3 (35) 6.0 μg/m3 (25) 49.0
 
April 20, 2021, 11 p.m. 3.7 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 51.0 ppb (48) N/A 28.1 μg/m3 (27) 6.0 μg/m3 (25) 48.0
 
April 20, 2021, 10 p.m. 5.4 ppb (6) 1.4 ppb (2) N/A 4.0 ppb (4) N/A N/A 47.0 ppb (44) N/A 33.2 μg/m3 (31) 4.0 μg/m3 (17) 44.0
 
April 20, 2021, 9 p.m. 3.6 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 47.0 ppb (44) N/A 38.1 μg/m3 (36) 7.0 μg/m3 (30) 44.0
 
April 20, 2021, 8 p.m. 4.1 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 47.0 ppb (44) N/A 35.3 μg/m3 (33) 7.0 μg/m3 (30) 44.0
 
April 20, 2021, 7 p.m. 4.7 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 44.0 ppb (41) N/A 35.8 μg/m3 (34) 7.0 μg/m3 (30) 41.0
 
April 20, 2021, 6 p.m. 6.8 ppb (7) 1.8 ppb (2) N/A 5.0 ppb (5) N/A N/A 40.0 ppb (38) N/A 40.0 μg/m3 (38) 10.0 μg/m3 (42) 42.0
 
April 20, 2021, 5 p.m. 10.0 ppb (10) 2.9 ppb (3) N/A 7.0 ppb (7) N/A N/A 32.0 ppb (30) N/A 48.0 μg/m3 (45) 10.0 μg/m3 (42) 45.0
 
April 20, 2021, 4 p.m. 20.1 ppb (19) 7.3 ppb (7) N/A 13.0 ppb (13) N/A N/A 21.0 ppb (20) N/A 56.3 μg/m3 (52) 19.0 μg/m3 (66) 66.0
 
April 20, 2021, 3 p.m. 22.6 ppb (22) 9.1 ppb (9) N/A 14.0 ppb (14) N/A N/A 15.0 ppb (14) N/A 59.2 μg/m3 (54) 20.0 μg/m3 (68) 68.0
 
April 20, 2021, 2 p.m. 26.9 ppb (26) 11.8 ppb (12) N/A 15.0 ppb (15) N/A N/A 7.0 ppb (7) N/A 66.5 μg/m3 (57) 14.0 μg/m3 (55) 57.0
 
April 20, 2021, 1 p.m. 24.2 ppb (23) 6.8 ppb (7) N/A 17.0 ppb (17) N/A N/A 4.0 ppb (4) N/A 51.5 μg/m3 (48) 14.0 μg/m3 (55) 55.0
 
April 20, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 38.0 μg/m3 (36) 10.0 μg/m3 (42) 42.0
 
April 20, 2021, 11 a.m. 7.1 ppb (7) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A 21.0 ppb (20) N/A 38.6 μg/m3 (36) 11.0 μg/m3 (46) 46.0
 
April 20, 2021, 10 a.m. 7.7 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (7) N/A N/A 21.0 ppb (20) N/A 42.2 μg/m3 (40) 14.0 μg/m3 (55) 55.0
 
April 20, 2021, 9 a.m. 6.8 ppb (7) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A 24.0 ppb (23) N/A 38.4 μg/m3 (36) 14.0 μg/m3 (55) 55.0
 
April 20, 2021, 8 a.m. 7.4 ppb (7) 0.9 ppb (1) N/A 7.0 ppb (7) N/A N/A 26.0 ppb (25) N/A 47.4 μg/m3 (44) 11.0 μg/m3 (46) 46.0
 
April 20, 2021, 7 a.m. 9.0 ppb (9) 0.9 ppb (1) N/A 8.0 ppb (8) N/A N/A 28.0 ppb (26) N/A 45.5 μg/m3 (43) 10.0 μg/m3 (42) 43.0
 
April 20, 2021, 6 a.m. 9.7 ppb (10) 1.0 ppb (1) N/A 9.0 ppb (9) N/A N/A 29.0 ppb (27) N/A 52.7 μg/m3 (49) 17.0 μg/m3 (62) 62.0
 
April 20, 2021, 5 a.m. 11.7 ppb (12) 1.0 ppb (1) N/A 11.0 ppb (11) N/A N/A 29.0 ppb (27) N/A 59.1 μg/m3 (54) 17.0 μg/m3 (62) 62.0
 
April 20, 2021, 4 a.m. 9.0 ppb (9) 0.7 ppb (1) N/A 8.0 ppb (8) N/A N/A 36.0 ppb (34) N/A 52.2 μg/m3 (49) 7.0 μg/m3 (30) 49.0
 
April 20, 2021, 3 a.m. 7.8 ppb (8) 0.6 ppb (1) N/A 7.0 ppb (7) N/A N/A 37.0 ppb (35) N/A 54.8 μg/m3 (51) 8.0 μg/m3 (34) 51.0
 
April 20, 2021, 2 a.m. 5.8 ppb (6) 0.5 ppb (1) N/A 5.0 ppb (5) N/A N/A 44.0 ppb (41) N/A 47.4 μg/m3 (44) 9.0 μg/m3 (38) 44.0
 
April 20, 2021, 1 a.m. 4.1 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 51.0 ppb (48) N/A 33.8 μg/m3 (32) 7.0 μg/m3 (30) 48.0
 
April 20, 2021, midnight 3.8 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 50.0 ppb (47) N/A 30.2 μg/m3 (28) 4.0 μg/m3 (17) 47.0
 
April 19, 2021, 11 p.m. 3.0 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 52.0 ppb (49) N/A 40.9 μg/m3 (38) 6.0 μg/m3 (25) 49.0
 
April 19, 2021, 10 p.m. 3.1 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 52.0 ppb (49) N/A 37.8 μg/m3 (35) 8.0 μg/m3 (34) 49.0
 
April 19, 2021, 9 p.m. 3.3 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 52.0 ppb (49) N/A 33.1 μg/m3 (31) 8.0 μg/m3 (34) 49.0
 
April 19, 2021, 8 p.m. 4.2 ppb (4) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 50.0 ppb (47) N/A 32.6 μg/m3 (31) 10.0 μg/m3 (42) 47.0
 
April 19, 2021, 7 p.m. 6.5 ppb (7) 1.1 ppb (2) N/A 5.0 ppb (5) N/A N/A 47.0 ppb (44) N/A 38.4 μg/m3 (36) 13.0 μg/m3 (53) 53.0
 
April 19, 2021, 6 p.m. 6.2 ppb (6) 1.2 ppb (2) N/A 5.0 ppb (5) N/A N/A 46.0 ppb (43) N/A 39.7 μg/m3 (37) 10.0 μg/m3 (42) 43.0
 
April 19, 2021, 5 p.m. 6.3 ppb (6) 1.4 ppb (2) N/A 5.0 ppb (5) N/A N/A 40.0 ppb (38) N/A 33.6 μg/m3 (32) 10.0 μg/m3 (42) 42.0
 
April 19, 2021, 4 p.m. 8.4 ppb (8) 2.1 ppb (2) N/A 6.0 ppb (6) N/A N/A 33.0 ppb (31) N/A 39.7 μg/m3 (37) 12.0 μg/m3 (50) 50.0
 
April 19, 2021, 3 p.m. 12.4 ppb (12) 3.4 ppb (4) N/A 9.0 ppb (9) N/A N/A 26.0 ppb (25) N/A 35.8 μg/m3 (34) 12.0 μg/m3 (50) 50.0
 
April 19, 2021, 2 p.m. 12.7 ppb (12) 2.7 ppb (3) N/A 10.0 ppb (10) N/A N/A 22.0 ppb (21) N/A 49.4 μg/m3 (46) 18.0 μg/m3 (64) 64.0
 
April 19, 2021, 1 p.m. 20.8 ppb (20) 3.9 ppb (4) N/A 17.0 ppb (17) N/A N/A 12.0 ppb (12) N/A 66.2 μg/m3 (57) 22.0 μg/m3 (72) 72.0
 
April 19, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 95.3 μg/m3 (71) 23.0 μg/m3 (74) 74.0
 
April 19, 2021, 11 a.m. 8.1 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (7) N/A N/A 19.0 ppb (18) N/A 45.7 μg/m3 (43) 24.0 μg/m3 (77) 77.0
 
April 19, 2021, 10 a.m. 7.3 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 18.0 ppb (17) N/A 43.5 μg/m3 (41) 21.0 μg/m3 (70) 70.0
 
April 19, 2021, 9 a.m. 11.0 ppb (11) 1.3 ppb (2) N/A 10.0 ppb (10) N/A N/A 13.0 ppb (13) N/A 42.1 μg/m3 (39) 21.0 μg/m3 (70) 70.0
 
April 19, 2021, 8 a.m. 12.3 ppb (12) 1.1 ppb (2) N/A 11.0 ppb (11) N/A N/A 16.0 ppb (15) N/A 50.9 μg/m3 (48) 14.0 μg/m3 (55) 55.0
 
April 19, 2021, 7 a.m. 18.1 ppb (18) 1.1 ppb (2) N/A 17.0 ppb (17) N/A N/A 17.0 ppb (16) N/A 58.2 μg/m3 (53) 13.0 μg/m3 (53) 53.0
 
April 19, 2021, 6 a.m. 21.0 ppb (20) 1.3 ppb (2) N/A 20.0 ppb (19) N/A N/A 14.0 ppb (13) N/A 97.8 μg/m3 (73) 18.0 μg/m3 (64) 73.0
 
April 19, 2021, 5 a.m. 13.8 ppb (14) 0.7 ppb (1) N/A 13.0 ppb (13) N/A N/A 26.0 ppb (25) N/A 30.4 μg/m3 (29) 5.0 μg/m3 (21) 29.0
 
April 19, 2021, 4 a.m. 10.7 ppb (11) 0.8 ppb (1) N/A 10.0 ppb (10) N/A N/A 35.0 ppb (33) N/A 38.1 μg/m3 (36) 7.0 μg/m3 (30) 36.0
 
April 19, 2021, 3 a.m. 10.7 ppb (11) 0.5 ppb (1) N/A 10.0 ppb (10) N/A N/A 35.0 ppb (33) N/A 32.2 μg/m3 (30) 9.0 μg/m3 (38) 38.0
 
April 19, 2021, 2 a.m. 5.4 ppb (6) 0.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 44.0 ppb (41) N/A 40.4 μg/m3 (38) 3.0 μg/m3 (13) 41.0
 
April 19, 2021, 1 a.m. 2.8 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 51.0 ppb (48) N/A 29.2 μg/m3 (28) 6.0 μg/m3 (25) 48.0
 
April 19, 2021, midnight 2.8 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 58.0 ppb (61) N/A 20.4 μg/m3 (19) 11.0 μg/m3 (46) 61.0
 
April 18, 2021, 11 p.m. 2.8 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 55.0 ppb (51) N/A 32.4 μg/m3 (30) 12.0 μg/m3 (50) 51.0
 
April 18, 2021, 10 p.m. 3.0 ppb (3) 0.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 53.0 ppb (50) N/A 34.3 μg/m3 (32) 12.0 μg/m3 (50) 50.0
 
April 18, 2021, 9 p.m. 3.5 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 51.0 ppb (48) N/A 27.6 μg/m3 (26) 5.0 μg/m3 (21) 48.0
 
April 18, 2021, 8 p.m. 3.6 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 49.0 ppb (46) N/A 29.2 μg/m3 (28) 8.0 μg/m3 (34) 46.0
 
April 18, 2021, 7 p.m. 5.1 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 46.0 ppb (43) N/A 29.5 μg/m3 (28) 10.0 μg/m3 (42) 43.0
 
April 18, 2021, 6 p.m. 7.1 ppb (7) 1.5 ppb (2) N/A 6.0 ppb (6) N/A N/A 41.0 ppb (38) N/A 44.1 μg/m3 (41) 11.0 μg/m3 (46) 46.0
 
April 18, 2021, 5 p.m. 6.4 ppb (7) 1.7 ppb (2) N/A 5.0 ppb (5) N/A N/A 37.0 ppb (35) N/A 43.3 μg/m3 (41) 13.0 μg/m3 (53) 53.0
 
April 18, 2021, 4 p.m. 5.0 ppb (5) 1.5 ppb (2) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (31) N/A 38.9 μg/m3 (37) 12.0 μg/m3 (50) 50.0
 
April 18, 2021, 3 p.m. 4.8 ppb (5) 1.4 ppb (2) N/A 3.0 ppb (3) N/A N/A 29.0 ppb (27) N/A 28.8 μg/m3 (27) 9.0 μg/m3 (38) 38.0
 
April 18, 2021, 2 p.m. 6.8 ppb (7) 1.6 ppb (2) N/A 5.0 ppb (5) N/A N/A 21.0 ppb (20) N/A 29.6 μg/m3 (28) 16.0 μg/m3 (60) 60.0
 
April 18, 2021, 1 p.m. 7.4 ppb (7) 1.2 ppb (2) N/A 6.0 ppb (6) N/A N/A 15.0 ppb (14) N/A 47.4 μg/m3 (44) 19.0 μg/m3 (66) 66.0
 
April 18, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 29.9 μg/m3 (28) 16.0 μg/m3 (60) 60.0
 
April 18, 2021, 11 a.m. 6.7 ppb (7) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 16.0 ppb (15) N/A 32.7 μg/m3 (31) 13.0 μg/m3 (53) 53.0
 
April 18, 2021, 10 a.m. 8.9 ppb (9) 1.0 ppb (1) N/A 8.0 ppb (8) N/A N/A 17.0 ppb (16) N/A 38.6 μg/m3 (36) 12.0 μg/m3 (50) 50.0
 
April 18, 2021, 9 a.m. 12.7 ppb (12) 1.1 ppb (2) N/A 12.0 ppb (12) N/A N/A 16.0 ppb (15) N/A 35.9 μg/m3 (34) 18.0 μg/m3 (64) 64.0
 
April 18, 2021, 8 a.m. 5.9 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 24.0 ppb (23) N/A 53.1 μg/m3 (50) 13.0 μg/m3 (53) 53.0
 
April 18, 2021, 7 a.m. 5.7 ppb (6) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 26.0 ppb (25) N/A 28.3 μg/m3 (27) 15.0 μg/m3 (58) 58.0
 
April 18, 2021, 6 a.m. 3.9 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (30) N/A 28.5 μg/m3 (27) 12.0 μg/m3 (50) 50.0
 
April 18, 2021, 5 a.m. 11.3 ppb (11) 0.9 ppb (1) N/A 10.0 ppb (10) N/A N/A 26.0 ppb (25) N/A 52.9 μg/m3 (49) 20.0 μg/m3 (68) 68.0
 
April 18, 2021, 4 a.m. 9.8 ppb (10) 0.7 ppb (1) N/A 9.0 ppb (9) N/A N/A 34.0 ppb (32) N/A 60.8 μg/m3 (54) 15.0 μg/m3 (58) 58.0
 
April 18, 2021, 3 a.m. 11.7 ppb (12) 0.7 ppb (1) N/A 11.0 ppb (11) N/A N/A 34.0 ppb (32) N/A 65.1 μg/m3 (56) 16.0 μg/m3 (60) 60.0
 
April 18, 2021, 2 a.m. 5.2 ppb (5) 0.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 44.0 ppb (41) N/A 32.5 μg/m3 (31) 7.0 μg/m3 (30) 41.0
 
April 18, 2021, 1 a.m. 3.3 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 48.0 ppb (45) N/A 31.5 μg/m3 (30) 10.0 μg/m3 (42) 45.0
 
April 18, 2021, midnight 2.6 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (45) N/A 31.1 μg/m3 (29) 6.0 μg/m3 (25) 45.0
 
April 17, 2021, 11 p.m. 2.9 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (44) N/A 35.6 μg/m3 (33) 8.0 μg/m3 (34) 44.0
 
April 17, 2021, 10 p.m. 3.0 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (43) N/A 41.3 μg/m3 (39) 11.0 μg/m3 (46) 46.0
 
April 17, 2021, 9 p.m. 2.9 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (41) N/A 41.7 μg/m3 (39) 9.0 μg/m3 (38) 41.0
 
April 17, 2021, 8 p.m. 3.3 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (39) N/A 46.0 μg/m3 (43) 6.0 μg/m3 (25) 43.0
 
April 17, 2021, 7 p.m. 3.4 ppb (4) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (38) N/A 37.8 μg/m3 (35) 10.0 μg/m3 (42) 42.0
 
April 17, 2021, 6 p.m. 5.0 ppb (5) 1.3 ppb (2) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (35) N/A 41.2 μg/m3 (39) 10.0 μg/m3 (42) 42.0
 
April 17, 2021, 5 p.m. 7.7 ppb (8) 2.1 ppb (2) N/A 6.0 ppb (6) N/A N/A 33.0 ppb (31) N/A 42.9 μg/m3 (40) 10.0 μg/m3 (42) 42.0
 
April 17, 2021, 4 p.m. 12.1 ppb (12) 3.5 ppb (4) N/A 9.0 ppb (9) N/A N/A 27.0 ppb (25) N/A 41.7 μg/m3 (39) 18.0 μg/m3 (64) 64.0
 
April 17, 2021, 3 p.m. 13.8 ppb (14) 4.0 ppb (4) N/A 10.0 ppb (10) N/A N/A 22.0 ppb (21) N/A 44.6 μg/m3 (42) 20.0 μg/m3 (68) 68.0
 
April 17, 2021, 2 p.m. 15.8 ppb (15) 4.5 ppb (5) N/A 11.0 ppb (11) N/A N/A 13.0 ppb (13) N/A 45.6 μg/m3 (43) 12.0 μg/m3 (50) 50.0
 
April 17, 2021, 1 p.m. 12.1 ppb (12) 1.8 ppb (2) N/A 10.0 ppb (10) N/A N/A 13.0 ppb (13) N/A 34.1 μg/m3 (32) 11.0 μg/m3 (46) 46.0
 
April 17, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 30.4 μg/m3 (29) 13.0 μg/m3 (53) 53.0
 
April 17, 2021, 11 a.m. 8.6 ppb (9) 0.8 ppb (1) N/A 8.0 ppb (8) N/A N/A 20.0 ppb (19) N/A 32.6 μg/m3 (31) 13.0 μg/m3 (53) 53.0
 
April 17, 2021, 10 a.m. 8.7 ppb (9) 0.8 ppb (1) N/A 8.0 ppb (8) N/A N/A 22.0 ppb (21) N/A 36.2 μg/m3 (34) 11.0 μg/m3 (46) 46.0
 
April 17, 2021, 9 a.m. 8.3 ppb (8) 0.8 ppb (1) N/A 8.0 ppb (8) N/A N/A 25.0 ppb (24) N/A 40.1 μg/m3 (38) 12.0 μg/m3 (50) 50.0
 
April 17, 2021, 8 a.m. 6.8 ppb (7) 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A 28.0 ppb (26) N/A 36.8 μg/m3 (35) 12.0 μg/m3 (50) 50.0
 
April 17, 2021, 7 a.m. 9.6 ppb (10) 0.8 ppb (1) N/A 9.0 ppb (9) N/A N/A 27.0 ppb (25) N/A 52.4 μg/m3 (49) 14.0 μg/m3 (55) 55.0
 
April 17, 2021, 6 a.m. 12.9 ppb (13) 1.0 ppb (1) N/A 12.0 ppb (12) N/A N/A 24.0 ppb (23) N/A 52.8 μg/m3 (49) 13.0 μg/m3 (53) 53.0
 
April 17, 2021, 5 a.m. 10.1 ppb (10) 0.7 ppb (1) N/A 9.0 ppb (9) N/A N/A 32.0 ppb (30) N/A 52.2 μg/m3 (49) 8.0 μg/m3 (34) 49.0
 
April 17, 2021, 4 a.m. 6.9 ppb (7) 0.5 ppb (1) N/A 6.0 ppb (6) N/A N/A 39.0 ppb (37) N/A 45.0 μg/m3 (42) 11.0 μg/m3 (46) 46.0
 
April 17, 2021, 3 a.m. 7.3 ppb (7) 0.5 ppb (1) N/A 7.0 ppb (7) N/A N/A 40.0 ppb (38) N/A 52.6 μg/m3 (49) 8.0 μg/m3 (34) 49.0
 
April 17, 2021, 2 a.m. 5.6 ppb (6) 0.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 44.0 ppb (41) N/A 49.8 μg/m3 (47) 12.0 μg/m3 (50) 50.0
 
April 17, 2021, 1 a.m. 3.5 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 51.0 ppb (48) N/A 40.7 μg/m3 (38) 12.0 μg/m3 (50) 50.0
 
April 17, 2021, midnight 3.5 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 52.0 ppb (49) N/A 43.2 μg/m3 (40) 10.0 μg/m3 (42) 49.0
 
April 16, 2021, 11 p.m. 3.5 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 52.0 ppb (49) N/A 47.1 μg/m3 (44) 11.0 μg/m3 (46) 49.0
 
April 16, 2021, 10 p.m. 4.1 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 52.0 ppb (49) N/A 43.4 μg/m3 (41) 8.0 μg/m3 (34) 49.0
 
April 16, 2021, 9 p.m. 4.0 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 51.0 ppb (48) N/A 49.9 μg/m3 (47) 9.0 μg/m3 (38) 48.0
 
April 16, 2021, 8 p.m. 6.5 ppb (7) 1.2 ppb (2) N/A 5.0 ppb (5) N/A N/A 47.0 ppb (44) N/A 57.2 μg/m3 (53) 16.0 μg/m3 (60) 60.0
 
April 16, 2021, 7 p.m. 13.8 ppb (14) 3.2 ppb (4) N/A 11.0 ppb (11) N/A N/A 38.0 ppb (36) N/A 67.9 μg/m3 (58) 21.0 μg/m3 (70) 70.0
 
April 16, 2021, 6 p.m. 11.6 ppb (11) 3.1 ppb (3) N/A 9.0 ppb (9) N/A N/A 34.0 ppb (32) N/A 64.4 μg/m3 (56) 21.0 μg/m3 (70) 70.0
 
April 16, 2021, 5 p.m. 11.2 ppb (11) 3.7 ppb (4) N/A 8.0 ppb (8) N/A N/A 26.0 ppb (25) N/A 73.3 μg/m3 (61) 18.0 μg/m3 (64) 64.0
 
April 16, 2021, 4 p.m. 10.1 ppb (10) 3.6 ppb (4) N/A 7.0 ppb (7) N/A N/A 23.0 ppb (22) N/A 53.9 μg/m3 (50) 14.0 μg/m3 (55) 55.0
 
April 16, 2021, 3 p.m. 12.1 ppb (12) 4.1 ppb (4) N/A 8.0 ppb (8) N/A N/A 19.0 ppb (18) N/A 61.4 μg/m3 (55) 18.0 μg/m3 (64) 64.0
 
April 16, 2021, 2 p.m. 20.4 ppb (20) 6.0 ppb (6) N/A 14.0 ppb (14) N/A N/A 14.0 ppb (13) N/A 74.2 μg/m3 (61) 16.0 μg/m3 (60) 61.0
 
April 16, 2021, 1 p.m. 23.0 ppb (22) 4.4 ppb (5) N/A 19.0 ppb (18) N/A N/A 5.0 ppb (5) N/A 43.8 μg/m3 (41) 11.0 μg/m3 (46) 46.0
 
April 16, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 37.4 μg/m3 (35) 10.0 μg/m3 (42) 42.0
 
April 16, 2021, 11 a.m. 8.9 ppb (9) 0.9 ppb (1) N/A 8.0 ppb (8) N/A N/A 17.0 ppb (16) N/A 29.5 μg/m3 (28) 12.0 μg/m3 (50) 50.0
 
April 16, 2021, 10 a.m. 8.4 ppb (8) 0.8 ppb (1) N/A 8.0 ppb (8) N/A N/A 19.0 ppb (18) N/A 40.0 μg/m3 (38) 13.0 μg/m3 (53) 53.0
 
April 16, 2021, 9 a.m. 7.3 ppb (7) 0.7 ppb (1) N/A 7.0 ppb (7) N/A N/A 23.0 ppb (22) N/A 34.0 μg/m3 (32) 14.0 μg/m3 (55) 55.0
 
April 16, 2021, 8 a.m. 10.1 ppb (10) 0.9 ppb (1) N/A 9.0 ppb (9) N/A N/A 21.0 ppb (20) N/A 40.3 μg/m3 (38) 12.0 μg/m3 (50) 50.0
 
April 16, 2021, 7 a.m. 11.9 ppb (12) 0.9 ppb (1) N/A 11.0 ppb (11) N/A N/A 21.0 ppb (20) N/A 45.0 μg/m3 (42) 12.0 μg/m3 (50) 50.0
 
April 16, 2021, 6 a.m. 11.8 ppb (12) 1.0 ppb (1) N/A 11.0 ppb (11) N/A N/A 22.0 ppb (21) N/A 51.6 μg/m3 (48) 11.0 μg/m3 (46) 48.0
 
April 16, 2021, 5 a.m. 18.2 ppb (18) 0.9 ppb (1) N/A 17.0 ppb (17) N/A N/A 20.0 ppb (19) N/A 46.8 μg/m3 (44) 12.0 μg/m3 (50) 50.0
 
April 16, 2021, 4 a.m. 13.5 ppb (13) 0.6 ppb (1) N/A 13.0 ppb (13) N/A N/A 29.0 ppb (27) N/A 45.1 μg/m3 (42) 10.0 μg/m3 (42) 42.0
 
April 16, 2021, 3 a.m. 9.5 ppb (9) 0.4 ppb (1) N/A 9.0 ppb (9) N/A N/A 36.0 ppb (34) N/A 37.4 μg/m3 (35) N/A 35.0
 
April 16, 2021, 2 a.m. 5.0 ppb (5) 0.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 46.0 ppb (43) N/A 37.5 μg/m3 (35) 8.0 μg/m3 (34) 43.0
 
April 16, 2021, 1 a.m. 3.0 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 51.0 ppb (48) N/A 36.7 μg/m3 (34) 8.0 μg/m3 (34) 48.0
 
April 16, 2021, midnight 3.8 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 50.0 ppb (47) N/A 40.4 μg/m3 (38) 8.0 μg/m3 (34) 47.0
 
April 15, 2021, 11 p.m. 3.1 ppb (3) 0.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 48.0 ppb (45) N/A 40.8 μg/m3 (38) 7.0 μg/m3 (30) 45.0
 
April 15, 2021, 10 p.m. 3.1 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 47.0 ppb (44) N/A 35.6 μg/m3 (33) 6.0 μg/m3 (25) 44.0
 
April 15, 2021, 9 p.m. 3.4 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 47.0 ppb (44) N/A 46.1 μg/m3 (43) 6.0 μg/m3 (25) 44.0
 
April 15, 2021, 8 p.m. 3.9 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (43) N/A 41.5 μg/m3 (39) 7.0 μg/m3 (30) 43.0
 
April 15, 2021, 7 p.m. 5.6 ppb (6) 1.3 ppb (2) N/A 4.0 ppb (4) N/A N/A 44.0 ppb (41) N/A 44.5 μg/m3 (42) 11.0 μg/m3 (46) 46.0
 
April 15, 2021, 6 p.m. 7.9 ppb (8) 1.9 ppb (2) N/A 6.0 ppb (6) N/A N/A 39.0 ppb (37) N/A 47.6 μg/m3 (45) 15.0 μg/m3 (58) 58.0
 
April 15, 2021, 5 p.m. 7.0 ppb (7) 1.8 ppb (2) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (33) N/A 53.7 μg/m3 (50) 15.0 μg/m3 (58) 58.0
 
April 15, 2021, 4 p.m. 6.7 ppb (7) 2.1 ppb (2) N/A 5.0 ppb (5) N/A N/A 28.0 ppb (26) N/A 50.5 μg/m3 (47) 15.0 μg/m3 (58) 58.0
 
April 15, 2021, 3 p.m. 8.1 ppb (8) 2.5 ppb (3) N/A 6.0 ppb (6) N/A N/A 23.0 ppb (22) N/A 47.4 μg/m3 (44) 12.0 μg/m3 (50) 50.0
 
April 15, 2021, 2 p.m. 12.8 ppb (13) 2.8 ppb (3) N/A 10.0 ppb (10) N/A N/A 21.0 ppb (20) N/A 45.2 μg/m3 (42) 16.0 μg/m3 (60) 60.0
 
April 15, 2021, 1 p.m. 12.5 ppb (12) 1.1 ppb (2) N/A 11.0 ppb (11) N/A N/A 18.0 ppb (17) N/A 41.9 μg/m3 (39) 20.0 μg/m3 (68) 68.0
 
April 15, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 44.5 μg/m3 (42) 17.0 μg/m3 (62) 62.0
 
April 15, 2021, 11 a.m. 6.5 ppb (7) 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A 23.0 ppb (22) N/A 43.9 μg/m3 (41) 14.0 μg/m3 (55) 55.0
 
April 15, 2021, 10 a.m. 5.9 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 22.0 ppb (21) N/A 48.2 μg/m3 (45) 20.0 μg/m3 (68) 68.0
 
April 15, 2021, 9 a.m. 6.6 ppb (7) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 23.0 ppb (22) N/A 35.2 μg/m3 (33) 17.0 μg/m3 (62) 62.0