ID: 2716

AQSQID: 060731022

Site Name: El Cajon - Lexington Elementary School

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

Updated: Aug. 6, 2020, 8:42 p.m.

Location: El Cajon (Bostonia), CA

Reporting: True, Located: True

Current AQI: 29.0

El Cajon (Bostonia) CA, US: 32.789561, -116.944222

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Aug. 6, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A N/A 29.0
 
Aug. 6, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 9.6 μg/m3 (40) 40.0
 
Aug. 6, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 10.4 μg/m3 (43) 43.0
 
Aug. 6, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 10.0 μg/m3 (42) 42.0
 
Aug. 6, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 10.3 μg/m3 (43) 43.0
 
Aug. 6, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 10.5 μg/m3 (44) 44.0
 
Aug. 6, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 8.2 μg/m3 (34) 34.0
 
Aug. 6, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.2 μg/m3 (42) 42.0
 
Aug. 6, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.2 μg/m3 (47) 47.0
 
Aug. 6, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.6 μg/m3 (40) 40.0
 
Aug. 6, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 9.4 μg/m3 (39) 39.0
 
Aug. 6, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 9.3 μg/m3 (39) 39.0
 
Aug. 6, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 10.0 μg/m3 (42) 42.0
 
Aug. 6, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 10.6 μg/m3 (44) 44.0
 
Aug. 6, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 5.7 μg/m3 (24) 24.0
 
Aug. 6, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 6.1 μg/m3 (25) 25.0
 
Aug. 6, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 5.2 μg/m3 (22) 22.0
 
Aug. 6, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 7.4 μg/m3 (31) 31.0
 
Aug. 6, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 9.1 μg/m3 (38) 38.0
 
Aug. 6, 2020, midnight N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 9.2 μg/m3 (38) 38.0
 
Aug. 5, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 9.4 μg/m3 (39) 39.0
 
Aug. 5, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 8.6 μg/m3 (36) 36.0
 
Aug. 5, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 12.0 μg/m3 (50) 50.0
 
Aug. 5, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 13.9 μg/m3 (54) 54.0
 
Aug. 5, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 13.0 μg/m3 (52) 52.0
 
Aug. 5, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 13.3 μg/m3 (53) 53.0
 
Aug. 5, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 13.3 μg/m3 (53) 53.0
 
Aug. 5, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 14.9 μg/m3 (56) 56.0
 
Aug. 5, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 16.7 μg/m3 (60) 60.0
 
Aug. 5, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 15.0 μg/m3 (56) 56.0
 
Aug. 5, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 10.4 μg/m3 (43) 43.0
 
Aug. 5, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.6 μg/m3 (44) 44.0
 
Aug. 5, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 15.9 μg/m3 (58) 58.0
 
Aug. 5, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.1 μg/m3 (46) 46.0
 
Aug. 5, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 11.1 μg/m3 (46) 46.0
 
Aug. 5, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 12.2 μg/m3 (50) 50.0
 
Aug. 5, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 8.6 μg/m3 (36) 36.0
 
Aug. 5, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 10.9 μg/m3 (45) 45.0
 
Aug. 5, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 9.1 μg/m3 (38) 38.0
 
Aug. 5, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 10.7 μg/m3 (45) 45.0
 
Aug. 5, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 12.1 μg/m3 (50) 50.0
 
Aug. 5, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 11.8 μg/m3 (49) 49.0
 
Aug. 5, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 14.6 μg/m3 (56) 56.0
 
Aug. 5, 2020, midnight N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 12.8 μg/m3 (52) 52.0
 
Aug. 4, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 10.5 μg/m3 (44) 44.0
 
Aug. 4, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 11.3 μg/m3 (47) 47.0
 
Aug. 4, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 13.4 μg/m3 (53) 53.0
 
Aug. 4, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A N/A 32.0
 
Aug. 4, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A N/A 37.0
 
Aug. 4, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 15.9 μg/m3 (58) 58.0
 
Aug. 4, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 20.7 μg/m3 (69) 69.0
 
Aug. 4, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 23.3 μg/m3 (74) 74.0
 
Aug. 4, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 18.7 μg/m3 (64) 64.0
 
Aug. 4, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 17.8 μg/m3 (62) 62.0
 
Aug. 4, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 16.8 μg/m3 (60) 60.0
 
Aug. 4, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 21.1 μg/m3 (69) 69.0
 
Aug. 4, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.9 μg/m3 (54) 54.0
 
Aug. 4, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (54) 54.0
 
Aug. 4, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 18.2 μg/m3 (63) 63.0
 
Aug. 4, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 17.3 μg/m3 (61) 61.0
 
Aug. 4, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 12.9 μg/m3 (52) 52.0
 
Aug. 4, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 12.2 μg/m3 (50) 50.0
 
Aug. 4, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 13.0 μg/m3 (52) 52.0
 
Aug. 4, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 16.7 μg/m3 (60) 60.0
 
Aug. 4, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 13.6 μg/m3 (53) 53.0
 
Aug. 4, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 16.6 μg/m3 (60) 60.0
 
Aug. 4, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 13.9 μg/m3 (54) 54.0
 
Aug. 4, 2020, midnight N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 13.5 μg/m3 (53) 53.0
 
Aug. 3, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 11.5 μg/m3 (48) 48.0
 
Aug. 3, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 12.6 μg/m3 (51) 51.0
 
Aug. 3, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 16.6 μg/m3 (60) 60.0
 
Aug. 3, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 16.9 μg/m3 (60) 60.0
 
Aug. 3, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 17.6 μg/m3 (62) 62.0
 
Aug. 3, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 16.0 μg/m3 (59) 59.0
 
Aug. 3, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 19.9 μg/m3 (67) 67.0
 
Aug. 3, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 16.1 μg/m3 (59) 59.0
 
Aug. 3, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 15.0 μg/m3 (56) 56.0
 
Aug. 3, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A N/A 16.3 μg/m3 (59) 59.0
 
Aug. 3, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A N/A 8.5 μg/m3 (35) 35.0
 
Aug. 3, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.4 μg/m3 (39) 39.0
 
Aug. 3, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (52) 52.0
 
Aug. 3, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.9 μg/m3 (45) 45.0
 
Aug. 3, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) N/A N/A 12.8 μg/m3 (52) 52.0
 
Aug. 3, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A N/A 10.5 μg/m3 (44) 44.0
 
Aug. 3, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A N/A 9.8 μg/m3 (41) 41.0
 
Aug. 3, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A N/A 13.6 μg/m3 (53) 53.0
 
Aug. 3, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A N/A 13.7 μg/m3 (54) 54.0
 
Aug. 3, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A N/A 9.6 μg/m3 (40) 40.0
 
Aug. 3, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 7.5 μg/m3 (31) 31.0
 
Aug. 3, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 8.9 μg/m3 (37) 37.0
 
Aug. 3, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 14.3 μg/m3 (55) 55.0
 
Aug. 3, 2020, midnight N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 6.0 μg/m3 (25) 25.0
 
Aug. 2, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 7.8 μg/m3 (32) 32.0
 
Aug. 2, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 9.1 μg/m3 (38) 38.0
 
Aug. 2, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 13.0 μg/m3 (52) 52.0
 
Aug. 2, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 10.1 μg/m3 (42) 42.0
 
Aug. 2, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 15.5 μg/m3 (57) 57.0
 
Aug. 2, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 11.5 μg/m3 (48) 48.0
 
Aug. 2, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 8.3 μg/m3 (35) 35.0
 
Aug. 2, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 11.9 μg/m3 (50) 50.0
 
Aug. 2, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 16.6 μg/m3 (60) 60.0
 
Aug. 2, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A N/A 11.2 μg/m3 (47) 47.0
 
Aug. 2, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A 10.5 μg/m3 (44) 44.0
 
Aug. 2, 2020, noon N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A N/A 10.1 μg/m3 (42) 42.0
 
Aug. 2, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 15.5 μg/m3 (57) 57.0
 
Aug. 2, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 16.7 μg/m3 (60) 60.0
 
Aug. 2, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 16.2 μg/m3 (59) 59.0
 
Aug. 2, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A N/A 15.3 μg/m3 (57) 57.0
 
Aug. 2, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A N/A 16.9 μg/m3 (60) 60.0
 
Aug. 2, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A N/A 21.2 μg/m3 (70) 70.0
 
Aug. 2, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A N/A 14.7 μg/m3 (56) 56.0
 
Aug. 2, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A N/A 17.7 μg/m3 (62) 62.0
 
Aug. 2, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 16.9 μg/m3 (60) 60.0
 
Aug. 2, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 12.6 μg/m3 (51) 51.0
 
Aug. 2, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 8.0 μg/m3 (33) 33.0
 
Aug. 2, 2020, midnight N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 12.0 μg/m3 (50) 50.0
 
Aug. 1, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 12.2 μg/m3 (50) 50.0
 
Aug. 1, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 11.4 μg/m3 (48) 48.0
 
Aug. 1, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 13.1 μg/m3 (52) 52.0
 
Aug. 1, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 15.2 μg/m3 (57) 57.0
 
Aug. 1, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 18.7 μg/m3 (64) 64.0
 
Aug. 1, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 22.4 μg/m3 (72) 72.0
 
Aug. 1, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 16.9 μg/m3 (60) 60.0
 
Aug. 1, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 23.1 μg/m3 (74) 74.0
 
Aug. 1, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 20.0 μg/m3 (67) 67.0
 
Aug. 1, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A N/A 19.6 μg/m3 (66) 66.0
 
Aug. 1, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A 13.8 μg/m3 (54) 54.0
 
Aug. 1, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 18.5 μg/m3 (64) 64.0
 
Aug. 1, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.8 μg/m3 (54) 54.0
 
Aug. 1, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 18.4 μg/m3 (64) 64.0
 
Aug. 1, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A N/A 18.8 μg/m3 (64) 64.0
 
Aug. 1, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) N/A N/A 16.1 μg/m3 (59) 59.0
 
Aug. 1, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A N/A 19.2 μg/m3 (65) 65.0
 
Aug. 1, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A N/A 22.7 μg/m3 (73) 73.0
 
Aug. 1, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A N/A 16.7 μg/m3 (60) 60.0
 
Aug. 1, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 15.6 μg/m3 (58) 58.0
 
Aug. 1, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 10.5 μg/m3 (44) 44.0
 
Aug. 1, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 12.8 μg/m3 (52) 52.0
 
Aug. 1, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 11.9 μg/m3 (50) 50.0
 
Aug. 1, 2020, midnight N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 11.3 μg/m3 (47) 47.0
 
July 31, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (46) N/A N/A 13.6 μg/m3 (53) 53.0
 
July 31, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (48) N/A N/A 9.7 μg/m3 (40) 48.0
 
July 31, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (49) N/A N/A 14.5 μg/m3 (55) 55.0
 
July 31, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (52) N/A N/A 18.4 μg/m3 (64) 64.0
 
July 31, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 74.0 ppb (57) N/A N/A 16.9 μg/m3 (60) 60.0
 
July 31, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 72.0 ppb (56) N/A N/A 14.2 μg/m3 (55) 56.0
 
July 31, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 14.0 μg/m3 (54) 54.0
 
July 31, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 15.8 μg/m3 (58) 58.0
 
July 31, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 16.5 μg/m3 (60) 60.0
 
July 31, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 14.2 μg/m3 (55) 55.0
 
July 31, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A N/A 11.8 μg/m3 (49) 49.0
 
July 31, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.8 μg/m3 (45) 45.0
 
July 31, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.6 μg/m3 (48) 48.0
 
July 31, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.6 μg/m3 (51) 51.0
 
July 31, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A N/A 15.4 μg/m3 (57) 57.0
 
July 31, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 11.2 μg/m3 (47) 47.0
 
July 31, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 11.8 μg/m3 (49) 49.0
 
July 31, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 9.9 μg/m3 (41) 41.0
 
July 31, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 12.9 μg/m3 (52) 52.0
 
July 31, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 14.5 μg/m3 (55) 55.0
 
July 31, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 10.2 μg/m3 (42) 42.0
 
July 31, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A N/A 16.5 μg/m3 (60) 60.0
 
July 31, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A N/A 9.0 μg/m3 (38) 44.0
 
July 31, 2020, midnight N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A N/A 9.4 μg/m3 (39) 45.0
 
July 30, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (48) N/A N/A 14.8 μg/m3 (56) 56.0
 
July 30, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 66.0 ppb (51) N/A N/A 11.4 μg/m3 (48) 51.0
 
July 30, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 71.0 ppb (55) N/A N/A 15.1 μg/m3 (57) 57.0
 
July 30, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 70.0 ppb (54) N/A N/A 16.9 μg/m3 (60) 60.0