ID: 130

AQSQID: 060250005

Site Name: Calexico - Ethel Street

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

Updated: Aug. 4, 2020, 1:41 p.m.

Location: Calexico (Andrade Ave), CA

Reporting: True, Located: True

Current AQI: 29.0

Calexico (Andrade Ave) CA, US: 32.67618, -115.48307

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 28, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 38.0 μg/m3 (35) 6.0 μg/m3 (25) 35.0
 
July 28, 2020, 11 a.m. 8.7 ppb (8) 1.9 ppb (2) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (25) 0.1 ppb (1) 31.0 μg/m3 (28) 4.0 μg/m3 (17) 28.0
 
July 28, 2020, 10 a.m. 6.5 ppb (6) 2.0 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 39.0 ppb (30) 0.09 ppb (1) 23.0 μg/m3 (21) 5.0 μg/m3 (21) 30.0
 
July 28, 2020, 9 a.m. 4.7 ppb (4) 1.9 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 43.0 ppb (33) 0.08 ppb (1) 21.0 μg/m3 (19) 5.0 μg/m3 (21) 33.0
 
July 28, 2020, 8 a.m. 4.9 ppb (5) 1.9 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 42.0 ppb (32) 0.08 ppb (1) 24.0 μg/m3 (22) 4.0 μg/m3 (17) 32.0
 
July 28, 2020, 7 a.m. 4.5 ppb (4) 1.9 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 43.0 ppb (33) 0.08 ppb (1) 25.0 μg/m3 (23) 6.0 μg/m3 (25) 33.0
 
July 28, 2020, 6 a.m. 4.7 ppb (4) 2.0 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 43.0 ppb (33) 0.09 ppb (1) 29.0 μg/m3 (26) 6.0 μg/m3 (25) 33.0
 
July 28, 2020, 5 a.m. 5.1 ppb (5) 1.9 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 44.0 ppb (34) 0.09 ppb (1) 35.0 μg/m3 (32) 7.0 μg/m3 (29) 34.0
 
July 28, 2020, 4 a.m. 4.4 ppb (4) 1.8 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 50.0 ppb (38) 0.1 ppb (1) 39.0 μg/m3 (35) 9.0 μg/m3 (38) 38.0
 
July 28, 2020, 3 a.m. 5.5 ppb (5) 1.9 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 56.0 ppb (43) 0.12 ppb (1) 49.0 μg/m3 (45) 12.0 μg/m3 (50) 50.0
 
July 28, 2020, 2 a.m. 7.1 ppb (7) 2.1 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 57.0 ppb (44) 0.12 ppb (1) 44.0 μg/m3 (40) 8.0 μg/m3 (33) 44.0
 
July 28, 2020, 1 a.m. 5.6 ppb (5) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 57.0 ppb (44) 0.09 ppb (1) 38.0 μg/m3 (35) 6.0 μg/m3 (25) 44.0
 
July 28, 2020, midnight 5.2 ppb (5) 2.3 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 58.0 ppb (45) 0.08 ppb (1) 28.0 μg/m3 (25) 8.0 μg/m3 (33) 45.0
 
July 27, 2020, 11 p.m. 5.3 ppb (5) 2.2 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 58.0 ppb (45) 0.09 ppb (1) 23.0 μg/m3 (21) 8.0 μg/m3 (33) 45.0
 
July 27, 2020, 10 p.m. 5.9 ppb (5) 2.2 ppb (2) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 56.0 ppb (43) 0.09 ppb (1) 29.0 μg/m3 (26) 6.0 μg/m3 (25) 43.0
 
July 27, 2020, 9 p.m. 6.8 ppb (6) 2.5 ppb (2) N/A 4.0 ppb (4) N/A 3.0 ppb (4) 55.0 ppb (42) 0.09 ppb (1) 37.0 μg/m3 (34) 8.0 μg/m3 (33) 42.0
 
July 27, 2020, 8 p.m. 9.6 ppb (9) 2.6 ppb (2) N/A 7.0 ppb (6) N/A 2.0 ppb (3) 67.0 ppb (52) 0.15 ppb (2) 39.0 μg/m3 (35) 8.0 μg/m3 (33) 52.0
 
July 27, 2020, 7 p.m. 11.0 ppb (10) 2.7 ppb (3) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 71.0 ppb (55) 0.28 ppb (3) 42.0 μg/m3 (38) 7.0 μg/m3 (29) 55.0
 
July 27, 2020, 6 p.m. 15.1 ppb (14) 3.4 ppb (3) N/A 12.0 ppb (11) N/A 1.0 ppb (1) 59.0 ppb (45) 0.24 ppb (3) 44.0 μg/m3 (40) 10.0 μg/m3 (42) 45.0
 
July 27, 2020, 5 p.m. 20.8 ppb (19) 5.3 ppb (5) N/A 15.0 ppb (14) N/A 1.0 ppb (1) 43.0 ppb (33) 0.23 ppb (3) 50.0 μg/m3 (45) 13.0 μg/m3 (52) 52.0
 
July 27, 2020, 4 p.m. 28.8 ppb (27) 8.8 ppb (8) N/A 20.0 ppb (19) N/A 2.0 ppb (3) 29.0 ppb (22) 0.38 ppb (4) 72.0 μg/m3 (58) 16.0 μg/m3 (59) 59.0
 
July 27, 2020, 3 p.m. 33.4 ppb (31) 11.3 ppb (10) N/A 22.0 ppb (20) N/A 1.0 ppb (1) 20.0 ppb (15) 0.38 ppb (4) 59.0 μg/m3 (52) 11.0 μg/m3 (46) 52.0
 
July 27, 2020, 2 p.m. 51.6 ppb (48) 25.0 ppb (23) N/A 27.0 ppb (25) N/A 1.0 ppb (1) 7.0 ppb (5) 0.65 ppb (7) 100.0 μg/m3 (72) 13.0 μg/m3 (52) 72.0
 
July 27, 2020, 1 p.m. 20.0 ppb (19) 6.5 ppb (6) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 11.0 ppb (8) 0.24 ppb (3) 48.0 μg/m3 (44) 5.0 μg/m3 (21) 44.0
 
July 27, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (29) 3.0 μg/m3 (12) 29.0
 
July 27, 2020, 11 a.m. 5.1 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (21) 0.08 ppb (1) 15.0 μg/m3 (14) 3.0 μg/m3 (12) 21.0
 
July 27, 2020, 10 a.m. 3.5 ppb (3) 1.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) 0.07 ppb (1) 22.0 μg/m3 (20) 4.0 μg/m3 (17) 23.0
 
July 27, 2020, 9 a.m. 3.4 ppb (3) 1.9 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (25) 0.07 ppb (1) 17.0 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
July 27, 2020, 8 a.m. 3.8 ppb (4) 2.0 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (26) 0.08 ppb (1) 14.0 μg/m3 (13) 5.0 μg/m3 (21) 26.0
 
July 27, 2020, 7 a.m. 5.0 ppb (5) 1.9 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (26) 0.09 ppb (1) 20.0 μg/m3 (18) 5.0 μg/m3 (21) 26.0
 
July 27, 2020, 6 a.m. 4.0 ppb (4) 2.0 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) 0.09 ppb (1) 25.0 μg/m3 (23) 7.0 μg/m3 (29) 29.0
 
July 27, 2020, 5 a.m. 4.2 ppb (4) 2.1 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (28) 0.09 ppb (1) 21.0 μg/m3 (19) 6.0 μg/m3 (25) 28.0
 
July 27, 2020, 4 a.m. 8.4 ppb (8) 1.9 ppb (2) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 34.0 ppb (26) 0.12 ppb (1) 37.0 μg/m3 (34) 4.0 μg/m3 (17) 34.0
 
July 27, 2020, 3 a.m. 15.1 ppb (14) 3.0 ppb (3) N/A 12.0 ppb (11) N/A 1.0 ppb (1) 25.0 ppb (19) 0.14 ppb (2) 28.0 μg/m3 (25) 4.0 μg/m3 (17) 25.0
 
July 27, 2020, 2 a.m. 7.5 ppb (7) 2.4 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 36.0 ppb (28) 0.12 ppb (1) 17.0 μg/m3 (15) 3.0 μg/m3 (12) 28.0
 
July 27, 2020, 1 a.m. 4.6 ppb (4) 2.4 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 42.0 ppb (32) 0.09 ppb (1) 13.0 μg/m3 (12) 5.0 μg/m3 (21) 32.0
 
July 27, 2020, midnight 4.2 ppb (4) 2.2 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 44.0 ppb (34) 0.07 ppb (1) 18.0 μg/m3 (16) 6.0 μg/m3 (25) 34.0
 
July 26, 2020, 11 p.m. 4.4 ppb (4) 2.4 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 47.0 ppb (36) 0.07 ppb (1) 22.0 μg/m3 (20) 4.0 μg/m3 (17) 36.0
 
July 26, 2020, 10 p.m. 4.4 ppb (4) 2.1 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 49.0 ppb (38) 0.07 ppb (1) 18.0 μg/m3 (16) 3.0 μg/m3 (12) 38.0
 
July 26, 2020, 9 p.m. 4.3 ppb (4) 2.2 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 52.0 ppb (40) 0.08 ppb (1) 22.0 μg/m3 (20) 3.0 μg/m3 (12) 40.0
 
July 26, 2020, 8 p.m. 3.8 ppb (4) 2.1 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 52.0 ppb (40) 0.07 ppb (1) 13.0 μg/m3 (12) 1.0 μg/m3 (4) 40.0
 
July 26, 2020, 7 p.m. 4.1 ppb (4) 2.1 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 51.0 ppb (39) 0.07 ppb (1) 11.0 μg/m3 (10) 1.0 μg/m3 (4) 39.0
 
July 26, 2020, 6 p.m. 4.5 ppb (4) 2.3 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 52.0 ppb (40) 0.07 ppb (1) 14.0 μg/m3 (13) 3.0 μg/m3 (12) 40.0
 
July 26, 2020, 5 p.m. 4.1 ppb (4) 2.1 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 45.0 ppb (35) 0.06 ppb (1) 12.0 μg/m3 (11) 5.0 μg/m3 (21) 35.0
 
July 26, 2020, 4 p.m. 5.4 ppb (5) 2.5 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 39.0 ppb (30) 0.06 ppb (1) 13.0 μg/m3 (12) 5.0 μg/m3 (21) 30.0
 
July 26, 2020, 3 p.m. 8.5 ppb (8) 2.8 ppb (3) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 35.0 ppb (27) 0.14 ppb (2) 54.0 μg/m3 (49) 9.0 μg/m3 (38) 49.0
 
July 26, 2020, 2 p.m. 19.1 ppb (18) 5.8 ppb (5) N/A 13.0 ppb (12) N/A 1.0 ppb (1) 19.0 ppb (15) 0.3 ppb (3) 64.0 μg/m3 (54) 14.0 μg/m3 (54) 54.0
 
July 26, 2020, 1 p.m. 16.9 ppb (16) 3.9 ppb (4) N/A 13.0 ppb (12) N/A 1.0 ppb (1) 13.0 ppb (10) 0.19 ppb (2) 43.0 μg/m3 (39) 11.0 μg/m3 (46) 46.0
 
July 26, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 35.0 μg/m3 (32) 12.0 μg/m3 (50) 50.0
 
July 26, 2020, 11 a.m. 15.9 ppb (15) 2.7 ppb (3) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 12.0 ppb (9) 0.2 ppb (2) 47.0 μg/m3 (43) 14.0 μg/m3 (54) 54.0
 
July 26, 2020, 10 a.m. 17.4 ppb (16) 2.6 ppb (2) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 6.0 ppb (5) 0.33 ppb (4) 114.0 μg/m3 (80) 20.0 μg/m3 (67) 80.0
 
July 26, 2020, 9 a.m. 6.0 ppb (6) 2.1 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 15.0 ppb (12) 0.12 ppb (1) 40.0 μg/m3 (36) 11.0 μg/m3 (46) 46.0
 
July 26, 2020, 8 a.m. 5.8 ppb (5) 2.1 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 16.0 ppb (12) 0.14 ppb (2) 53.0 μg/m3 (48) 19.0 μg/m3 (65) 65.0
 
July 26, 2020, 7 a.m. 6.6 ppb (6) 2.2 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 24.0 ppb (18) 0.13 ppb (1) 44.0 μg/m3 (40) 6.0 μg/m3 (25) 40.0
 
July 26, 2020, 6 a.m. 6.8 ppb (6) 2.0 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 33.0 ppb (25) 0.14 ppb (2) 24.0 μg/m3 (22) 4.0 μg/m3 (17) 25.0
 
July 26, 2020, 5 a.m. 6.6 ppb (6) 2.0 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 36.0 ppb (28) 0.12 ppb (1) 30.0 μg/m3 (27) 5.0 μg/m3 (21) 28.0
 
July 26, 2020, 4 a.m. 4.6 ppb (4) 1.8 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 43.0 ppb (33) 0.09 ppb (1) 19.0 μg/m3 (17) 6.0 μg/m3 (25) 33.0
 
July 26, 2020, 3 a.m. 12.5 ppb (12) 3.0 ppb (3) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 29.0 ppb (22) 0.14 ppb (2) 33.0 μg/m3 (30) 3.0 μg/m3 (12) 30.0
 
July 26, 2020, 2 a.m. 4.6 ppb (4) 1.8 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 52.0 ppb (40) 0.12 ppb (1) 25.0 μg/m3 (23) 5.0 μg/m3 (21) 40.0
 
July 26, 2020, 1 a.m. 3.5 ppb (3) 2.0 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 54.0 ppb (42) 0.07 ppb (1) 26.0 μg/m3 (24) 6.0 μg/m3 (25) 42.0
 
July 26, 2020, midnight 3.5 ppb (3) 2.1 ppb (2) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 56.0 ppb (43) 0.07 ppb (1) 38.0 μg/m3 (35) 6.0 μg/m3 (25) 43.0
 
July 25, 2020, 11 p.m. 4.3 ppb (4) 2.2 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 57.0 ppb (44) 0.07 ppb (1) 42.0 μg/m3 (38) 6.0 μg/m3 (25) 44.0
 
July 25, 2020, 10 p.m. 5.8 ppb (5) 2.4 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 58.0 ppb (45) 0.11 ppb (1) 33.0 μg/m3 (30) 7.0 μg/m3 (29) 45.0
 
July 25, 2020, 9 p.m. 5.0 ppb (5) 2.1 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 54.0 ppb (42) 0.09 ppb (1) 32.0 μg/m3 (29) 6.0 μg/m3 (25) 42.0
 
July 25, 2020, 8 p.m. 4.5 ppb (4) 2.2 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 50.0 ppb (38) 0.08 ppb (1) 31.0 μg/m3 (28) 7.0 μg/m3 (29) 38.0
 
July 25, 2020, 7 p.m. 4.9 ppb (5) 2.3 ppb (2) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 49.0 ppb (38) 0.08 ppb (1) 30.0 μg/m3 (27) 8.0 μg/m3 (33) 38.0
 
July 25, 2020, 6 p.m. 6.8 ppb (6) 2.5 ppb (2) N/A 4.0 ppb (4) N/A 3.0 ppb (4) 53.0 ppb (41) 0.12 ppb (1) 38.0 μg/m3 (35) 10.0 μg/m3 (42) 42.0
 
July 25, 2020, 5 p.m. 13.8 ppb (13) 4.4 ppb (4) N/A 9.0 ppb (8) N/A 3.0 ppb (4) 40.0 ppb (31) 0.19 ppb (2) 54.0 μg/m3 (49) 11.0 μg/m3 (46) 49.0
 
July 25, 2020, 4 p.m. 20.9 ppb (19) 7.2 ppb (7) N/A 14.0 ppb (13) N/A 2.0 ppb (3) 27.0 ppb (21) 0.19 ppb (2) 39.0 μg/m3 (35) 10.0 μg/m3 (42) 42.0
 
July 25, 2020, 3 p.m. 29.7 ppb (28) 12.1 ppb (11) N/A 18.0 ppb (17) N/A 1.0 ppb (1) 16.0 ppb (12) 0.24 ppb (3) 59.0 μg/m3 (52) 12.0 μg/m3 (50) 52.0
 
July 25, 2020, 2 p.m. 30.6 ppb (28) 11.8 ppb (11) N/A 19.0 ppb (18) N/A 1.0 ppb (1) 12.0 ppb (9) 0.28 ppb (3) 59.0 μg/m3 (52) 19.0 μg/m3 (65) 65.0
 
July 25, 2020, 1 p.m. 20.0 ppb (19) 5.9 ppb (5) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 11.0 ppb (8) 0.18 ppb (2) 48.0 μg/m3 (44) 9.0 μg/m3 (38) 44.0
 
July 25, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 9.0 μg/m3 (38) 38.0
 
July 25, 2020, 11 a.m. 6.3 ppb (6) 2.1 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 16.0 ppb (12) 0.12 ppb (1) 26.0 μg/m3 (24) 10.0 μg/m3 (42) 42.0
 
July 25, 2020, 10 a.m. 6.7 ppb (6) 2.5 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 17.0 ppb (13) 0.1 ppb (1) 24.0 μg/m3 (22) 6.0 μg/m3 (25) 25.0
 
July 25, 2020, 9 a.m. 5.0 ppb (5) 2.1 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 19.0 ppb (15) 0.07 ppb (1) 26.0 μg/m3 (24) 4.0 μg/m3 (17) 24.0
 
July 25, 2020, 8 a.m. 4.5 ppb (4) 2.3 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 20.0 ppb (15) 0.07 ppb (1) 28.0 μg/m3 (25) 7.0 μg/m3 (29) 29.0
 
July 25, 2020, 7 a.m. 5.2 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 20.0 ppb (15) 0.11 ppb (1) 37.0 μg/m3 (34) 7.0 μg/m3 (29) 34.0
 
July 25, 2020, 6 a.m. 7.5 ppb (7) 2.7 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 18.0 ppb (14) 0.13 ppb (1) 37.0 μg/m3 (34) 9.0 μg/m3 (38) 38.0
 
July 25, 2020, 5 a.m. 12.1 ppb (11) 3.2 ppb (3) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 21.0 ppb (16) 0.16 ppb (2) 40.0 μg/m3 (36) 9.0 μg/m3 (38) 38.0
 
July 25, 2020, 4 a.m. 19.8 ppb (18) 2.9 ppb (3) N/A 17.0 ppb (16) N/A 2.0 ppb (3) 17.0 ppb (13) 0.16 ppb (2) 59.0 μg/m3 (52) 14.0 μg/m3 (54) 54.0
 
July 25, 2020, 3 a.m. 12.6 ppb (12) 2.6 ppb (2) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 23.0 ppb (18) 0.13 ppb (1) 39.0 μg/m3 (35) 7.0 μg/m3 (29) 35.0
 
July 25, 2020, 2 a.m. 12.5 ppb (12) 3.2 ppb (3) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 26.0 ppb (20) 0.12 ppb (1) 57.0 μg/m3 (51) 11.0 μg/m3 (46) 51.0
 
July 25, 2020, 1 a.m. 8.7 ppb (8) 2.7 ppb (3) N/A 6.0 ppb (6) N/A 2.0 ppb (3) 41.0 ppb (32) 0.11 ppb (1) 56.0 μg/m3 (50) 12.0 μg/m3 (50) 50.0
 
July 25, 2020, midnight 8.1 ppb (8) 2.9 ppb (3) N/A 5.0 ppb (5) N/A 3.0 ppb (4) 56.0 ppb (43) 0.13 ppb (1) 48.0 μg/m3 (44) 12.0 μg/m3 (50) 50.0
 
July 24, 2020, 11 p.m. 6.4 ppb (6) 2.4 ppb (2) N/A 4.0 ppb (4) N/A 3.0 ppb (4) 56.0 ppb (43) 0.12 ppb (1) 55.0 μg/m3 (50) 14.0 μg/m3 (54) 54.0
 
July 24, 2020, 10 p.m. 6.5 ppb (6) 2.5 ppb (2) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 54.0 ppb (42) 0.11 ppb (1) 46.0 μg/m3 (42) 15.0 μg/m3 (56) 56.0
 
July 24, 2020, 9 p.m. 6.2 ppb (6) 2.4 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 57.0 ppb (44) 0.13 ppb (1) 52.0 μg/m3 (47) 16.0 μg/m3 (59) 59.0
 
July 24, 2020, 8 p.m. 5.5 ppb (5) 2.5 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 49.0 ppb (38) 0.1 ppb (1) 49.0 μg/m3 (45) 8.0 μg/m3 (33) 45.0
 
July 24, 2020, 7 p.m. 5.8 ppb (5) 2.8 ppb (3) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 47.0 ppb (36) 0.1 ppb (1) 34.0 μg/m3 (31) 8.0 μg/m3 (33) 36.0
 
July 24, 2020, 6 p.m. 5.9 ppb (5) 2.7 ppb (3) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 42.0 ppb (32) 0.1 ppb (1) 31.0 μg/m3 (28) 8.0 μg/m3 (33) 33.0
 
July 24, 2020, 5 p.m. 7.6 ppb (7) 3.0 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 40.0 ppb (31) 0.17 ppb (2) 33.0 μg/m3 (30) 10.0 μg/m3 (42) 42.0
 
July 24, 2020, 4 p.m. 10.1 ppb (9) 3.9 ppb (4) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 31.0 ppb (24) 0.18 ppb (2) 40.0 μg/m3 (36) 11.0 μg/m3 (46) 46.0
 
July 24, 2020, 3 p.m. 10.3 ppb (10) 4.1 ppb (4) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 24.0 ppb (18) 0.16 ppb (2) 38.0 μg/m3 (35) 10.0 μg/m3 (42) 42.0
 
July 24, 2020, 2 p.m. 7.4 ppb (7) 3.1 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 19.0 ppb (15) 0.11 ppb (1) 55.0 μg/m3 (50) 9.0 μg/m3 (38) 50.0
 
July 24, 2020, 1 p.m. 7.8 ppb (7) 3.4 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 13.0 ppb (10) 0.09 ppb (1) 66.0 μg/m3 (56) 14.0 μg/m3 (54) 56.0
 
July 24, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 40.0 μg/m3 (36) 7.0 μg/m3 (29) 36.0
 
July 24, 2020, 11 a.m. 4.3 ppb (4) 2.3 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 19.0 ppb (15) 0.09 ppb (1) 35.0 μg/m3 (32) 9.0 μg/m3 (38) 38.0
 
July 24, 2020, 10 a.m. 4.0 ppb (4) 2.2 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 19.0 ppb (15) 0.08 ppb (1) 39.0 μg/m3 (35) 11.0 μg/m3 (46) 46.0
 
July 24, 2020, 9 a.m. 3.9 ppb (4) 2.1 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 18.0 ppb (14) 0.08 ppb (1) 39.0 μg/m3 (35) 9.0 μg/m3 (38) 38.0
 
July 24, 2020, 8 a.m. 4.2 ppb (4) 2.0 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 16.0 ppb (12) 0.09 ppb (1) 35.0 μg/m3 (32) 7.0 μg/m3 (29) 32.0
 
July 24, 2020, 7 a.m. 4.4 ppb (4) 2.2 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 17.0 ppb (13) 0.09 ppb (1) 27.0 μg/m3 (25) 8.0 μg/m3 (33) 33.0
 
July 24, 2020, 6 a.m. 4.9 ppb (5) 2.2 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 20.0 ppb (15) 0.09 ppb (1) 31.0 μg/m3 (28) 9.0 μg/m3 (38) 38.0
 
July 24, 2020, 5 a.m. 9.4 ppb (9) 2.5 ppb (2) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 22.0 ppb (17) 0.15 ppb (2) 44.0 μg/m3 (40) 14.0 μg/m3 (54) 54.0
 
July 24, 2020, 4 a.m. 10.9 ppb (10) 2.5 ppb (2) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 28.0 ppb (22) 0.12 ppb (1) 50.0 μg/m3 (45) 12.0 μg/m3 (50) 50.0
 
July 24, 2020, 3 a.m. 10.6 ppb (10) 2.9 ppb (3) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 29.0 ppb (22) 0.11 ppb (1) 40.0 μg/m3 (36) 6.0 μg/m3 (25) 36.0
 
July 24, 2020, 2 a.m. 8.5 ppb (8) 2.9 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 30.0 ppb (23) 0.1 ppb (1) 54.0 μg/m3 (49) 8.0 μg/m3 (33) 49.0
 
July 24, 2020, 1 a.m. 9.2 ppb (9) 3.3 ppb (3) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 33.0 ppb (25) 0.1 ppb (1) 67.0 μg/m3 (56) 10.0 μg/m3 (42) 56.0
 
July 24, 2020, midnight 5.6 ppb (5) 2.8 ppb (3) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 46.0 ppb (35) 0.08 ppb (1) 46.0 μg/m3 (42) 10.0 μg/m3 (42) 42.0
 
July 23, 2020, 11 p.m. 5.6 ppb (5) 2.5 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 56.0 ppb (43) 0.1 ppb (1) 43.0 μg/m3 (39) 15.0 μg/m3 (56) 56.0
 
July 23, 2020, 10 p.m. 5.4 ppb (5) 2.3 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 56.0 ppb (43) 0.1 ppb (1) 47.0 μg/m3 (43) 12.0 μg/m3 (50) 50.0
 
July 23, 2020, 9 p.m. 4.2 ppb (4) 2.1 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 52.0 ppb (40) 0.08 ppb (1) 34.0 μg/m3 (31) 6.0 μg/m3 (25) 40.0
 
July 23, 2020, 8 p.m. 5.1 ppb (5) 2.5 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 52.0 ppb (40) 0.09 ppb (1) 38.0 μg/m3 (35) 9.0 μg/m3 (38) 40.0
 
July 23, 2020, 7 p.m. 5.3 ppb (5) 2.5 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 45.0 ppb (35) 0.1 ppb (1) 38.0 μg/m3 (35) 8.0 μg/m3 (33) 35.0
 
July 23, 2020, 6 p.m. 5.7 ppb (5) 2.5 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 43.0 ppb (33) 0.1 ppb (1) 38.0 μg/m3 (35) 6.0 μg/m3 (25) 35.0
 
July 23, 2020, 5 p.m. 6.3 ppb (6) 3.0 ppb (3) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.13 ppb (1) 51.0 μg/m3 (46) 9.0 μg/m3 (38) 46.0
 
July 23, 2020, 4 p.m. 8.8 ppb (8) 4.2 ppb (4) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A 0.23 ppb (3) 42.0 μg/m3 (38) 10.0 μg/m3 (42) 42.0
 
July 23, 2020, 3 p.m. 14.3 ppb (13) 6.8 ppb (6) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 24.0 ppb (18) 0.19 ppb (2) 50.0 μg/m3 (45) 11.0 μg/m3 (46) 46.0
 
July 23, 2020, 2 p.m. 12.4 ppb (11) 5.1 ppb (5) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 16.0 ppb (12) 0.2 ppb (2) 53.0 μg/m3 (48) 11.0 μg/m3 (46) 48.0
 
July 23, 2020, 1 p.m. 10.4 ppb (10) 4.6 ppb (4) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 12.0 ppb (9) 0.12 ppb (1) 42.0 μg/m3 (38) 7.0 μg/m3 (29) 38.0
 
July 23, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 7.0 μg/m3 (29) 29.0
 
July 23, 2020, 11 a.m. 5.0 ppb (5) 2.2 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 13.0 ppb (10) 0.11 ppb (1) 29.0 μg/m3 (26) 9.0 μg/m3 (38) 38.0
 
July 23, 2020, 10 a.m. 5.2 ppb (5) 2.2 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 12.0 ppb (9) 0.08 ppb (1) 37.0 μg/m3 (34) 13.0 μg/m3 (52) 52.0
 
July 23, 2020, 9 a.m. 4.9 ppb (5) 2.2 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 13.0 ppb (10) 0.09 ppb (1) 40.0 μg/m3 (36) 11.0 μg/m3 (46) 46.0
 
July 23, 2020, 8 a.m. 5.5 ppb (5) 2.4 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 13.0 ppb (10) 0.1 ppb (1) 47.0 μg/m3 (43) 15.0 μg/m3 (56) 56.0
 
July 23, 2020, 7 a.m. 7.2 ppb (7) 2.1 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 25.0 ppb (19) 0.12 ppb (1) 49.0 μg/m3 (45) 9.0 μg/m3 (38) 45.0
 
July 23, 2020, 6 a.m. 6.4 ppb (6) 2.1 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 38.0 ppb (29) 0.11 ppb (1) 40.0 μg/m3 (36) 9.0 μg/m3 (38) 38.0
 
July 23, 2020, 5 a.m. 5.5 ppb (5) 2.1 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 40.0 ppb (31) 0.11 ppb (1) 54.0 μg/m3 (49) 9.0 μg/m3 (38) 49.0
 
July 23, 2020, 4 a.m. 6.7 ppb (6) 2.4 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 23.0 ppb (18) 0.11 ppb (1) 40.0 μg/m3 (36) 7.0 μg/m3 (29) 36.0
 
July 23, 2020, 3 a.m. 9.0 ppb (8) 2.7 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 28.0 ppb (22) 0.13 ppb (1) 39.0 μg/m3 (35) 6.0 μg/m3 (25) 35.0
 
July 23, 2020, 2 a.m. 7.5 ppb (7) 2.5 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 30.0 ppb (23) 0.11 ppb (1) 48.0 μg/m3 (44) 5.0 μg/m3 (21) 44.0
 
July 23, 2020, 1 a.m. 6.7 ppb (6) 3.0 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 33.0 ppb (25) 0.09 ppb (1) 62.0 μg/m3 (54) 5.0 μg/m3 (21) 54.0
 
July 23, 2020, midnight 5.8 ppb (5) 2.6 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 36.0 ppb (28) 0.08 ppb (1) 76.0 μg/m3 (60) 6.0 μg/m3 (25) 60.0
 
July 22, 2020, 11 p.m. 6.0 ppb (6) 2.8 ppb (3) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 38.0 ppb (29) 0.09 ppb (1) 58.0 μg/m3 (52) 6.0 μg/m3 (25) 52.0
 
July 22, 2020, 10 p.m. 5.2 ppb (5) 2.3 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 45.0 ppb (35) 0.08 ppb (1) 36.0 μg/m3 (33) 8.0 μg/m3 (33) 35.0
 
July 22, 2020, 9 p.m. 6.1 ppb (6) 2.6 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 47.0 ppb (36) 0.1 ppb (1) 37.0 μg/m3 (34) 11.0 μg/m3 (46) 46.0
 
July 22, 2020, 8 p.m. 8.0 ppb (7) 2.7 ppb (3) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A 0.11 ppb (1) 40.0 μg/m3 (36) 14.0 μg/m3 (54) 54.0
 
July 22, 2020, 7 p.m. 6.5 ppb (6) 2.5 ppb (2) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 52.0 ppb (40) 0.13 ppb (1) 39.0 μg/m3 (35) 10.0 μg/m3 (42) 42.0
 
July 22, 2020, 6 p.m. 7.7 ppb (7) 3.0 ppb (3) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 46.0 ppb (35) 0.14 ppb (2) 51.0 μg/m3 (46) 12.0 μg/m3 (50) 50.0
 
July 22, 2020, 5 p.m. 8.7 ppb (8) 3.6 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 36.0 ppb (28) 0.13 ppb (1) 51.0 μg/m3 (46) 14.0 μg/m3 (54) 54.0
 
July 22, 2020, 4 p.m. 11.0 ppb (10) 4.6 ppb (4) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 27.0 ppb (21) 0.14 ppb (2) 59.0 μg/m3 (52) 14.0 μg/m3 (54) 54.0
 
July 22, 2020, 3 p.m. 14.1 ppb (13) 5.7 ppb (5) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 21.0 ppb (16) 0.19 ppb (2) 60.0 μg/m3 (52) 13.0 μg/m3 (52) 52.0
 
July 22, 2020, 2 p.m. 11.7 ppb (11) 4.7 ppb (4) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 19.0 ppb (15) 0.19 ppb (2) 81.0 μg/m3 (63) 12.0 μg/m3 (50) 63.0
 
July 22, 2020, 1 p.m. 9.0 ppb (8) 3.9 ppb (4) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 16.0 ppb (12) 0.12 ppb (1) 107.0 μg/m3 (76) 16.0 μg/m3 (59) 76.0
 
July 22, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (31) 12.0 μg/m3 (50) 50.0
 
July 22, 2020, 11 a.m. 6.7 ppb (6) 2.9 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 20.0 ppb (15) 0.1 ppb (1) 33.0 μg/m3 (30) 12.0 μg/m3 (50) 50.0
 
July 22, 2020, 10 a.m. 5.2 ppb (5) 2.1 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 21.0 ppb (16) 0.08 ppb (1) 26.0 μg/m3 (24) 12.0 μg/m3 (50) 50.0
 
July 22, 2020, 9 a.m. 4.9 ppb (5) 2.2 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 20.0 ppb (15) 0.08 ppb (1) 25.0 μg/m3 (23) 6.0 μg/m3 (25) 25.0
 
July 22, 2020, 8 a.m. 7.1 ppb (7) 2.2 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 13.0 ppb (10) 0.08 ppb (1) 28.0 μg/m3 (25) 8.0 μg/m3 (33) 33.0
 
July 22, 2020, 7 a.m. 6.0 ppb (6) 2.2 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 15.0 ppb (12) 0.08 ppb (1) 26.0 μg/m3 (24) 9.0 μg/m3 (38) 38.0
 
July 22, 2020, 6 a.m. 5.8 ppb (5) 2.4 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 18.0 ppb (14) 0.09 ppb (1) 29.0 μg/m3 (26) 10.0 μg/m3 (42) 42.0
 
July 22, 2020, 5 a.m. 9.3 ppb (9) 2.6 ppb (2) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 14.0 ppb (11) 0.11 ppb (1) 50.0 μg/m3 (45) 12.0 μg/m3 (50) 50.0
 
July 22, 2020, 4 a.m. 8.0 ppb (7) 2.7 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 16.0 ppb (12) 0.11 ppb (1) 74.0 μg/m3 (60) 12.0 μg/m3 (50) 60.0
 
July 22, 2020, 3 a.m. 12.6 ppb (12) 3.1 ppb (3) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 20.0 ppb (15) 0.13 ppb (1) 68.0 μg/m3 (56) 13.0 μg/m3 (52) 56.0
 
July 22, 2020, 2 a.m. 7.2 ppb (7) 2.5 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 25.0 ppb (19) 0.12 ppb (1) 71.0 μg/m3 (58) 11.0 μg/m3 (46) 58.0
 
July 22, 2020, 1 a.m. 8.5 ppb (8) 2.9 ppb (3) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 32.0 ppb (25) 0.11 ppb (1) 44.0 μg/m3 (40) 13.0 μg/m3 (52) 52.0
 
July 22, 2020, midnight 7.5 ppb (7) 3.0 ppb (3) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 40.0 ppb (31) 0.12 ppb (1) 44.0 μg/m3 (40) 11.0 μg/m3 (46) 46.0
 
July 21, 2020, 11 p.m. 7.9 ppb (7) 3.1 ppb (3) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 41.0 ppb (32) 0.11 ppb (1) 52.0 μg/m3 (47) 12.0 μg/m3 (50) 50.0
 
July 21, 2020, 10 p.m. 6.6 ppb (6) 2.8 ppb (3) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 42.0 ppb (32) 0.11 ppb (1) 55.0 μg/m3 (50) 12.0 μg/m3 (50) 50.0
 
July 21, 2020, 9 p.m. 6.8 ppb (6) 2.9 ppb (3) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 41.0 ppb (32) 0.12 ppb (1) 50.0 μg/m3 (45) 9.0 μg/m3 (38) 45.0
 
July 21, 2020, 8 p.m. 6.2 ppb (6) 2.7 ppb (3) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 41.0 ppb (32) 0.11 ppb (1) 47.0 μg/m3 (43) 12.0 μg/m3 (50) 50.0
 
July 21, 2020, 7 p.m. 6.9 ppb (6) 2.9 ppb (3) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 47.0 ppb (36) 0.14 ppb (2) 44.0 μg/m3 (40) 11.0 μg/m3 (46) 46.0
 
July 21, 2020, 6 p.m. 7.4 ppb (7) 3.2 ppb (3) N/A 4.0 ppb (4) N/A 3.0 ppb (4) 46.0 ppb (35) 0.14 ppb (2) 45.0 μg/m3 (41) 13.0 μg/m3 (52) 52.0
 
July 21, 2020, 5 p.m. 9.1 ppb (8) 3.3 ppb (3) N/A 6.0 ppb (6) N/A 3.0 ppb (4) 39.0 ppb (30) 0.18 ppb (2) 44.0 μg/m3 (40) 13.0 μg/m3 (52) 52.0
 
July 21, 2020, 4 p.m. 10.7 ppb (10) 4.7 ppb (4) N/A 6.0 ppb (6) N/A 2.0 ppb (3) 25.0 ppb (19) 0.19 ppb (2) 44.0 μg/m3 (40) 15.0 μg/m3 (56) 56.0
 
July 21, 2020, 3 p.m. 16.4 ppb (15) 7.5 ppb (7) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 15.0 ppb (12) 0.2 ppb (2) 81.0 μg/m3 (63) 15.0 μg/m3 (56) 63.0
 
July 21, 2020, 2 p.m. 22.3 ppb (21) 10.5 ppb (10) N/A 12.0 ppb (11) N/A 1.0 ppb (1) 11.0 ppb (8) 0.25 ppb (3) 74.0 μg/m3 (60) 15.0 μg/m3 (56) 60.0
 
July 21, 2020, 1 p.m. 20.3 ppb (19) 8.1 ppb (8) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 7.0 ppb (5) 0.19 ppb (2) 49.0 μg/m3 (45) 11.0 μg/m3 (46) 46.0