ID: 1973

AQSQID: 060792006

Site Name: San Luis Obispo - Higuera St

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

Updated: Sept. 29, 2020, 10:38 a.m.

Location: San Luis Obispo (S Higuera St), CA

Reporting: True, Located: True

Current AQI: 17.0

San Luis Obispo (S Higuera St) CA, US: 35.25651, -120.6693

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 29, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 1.5 μg/m3 (1) 1.0 μg/m3 (4) 17.0
 
Sept. 29, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 3.6 μg/m3 (3) 1.0 μg/m3 (4) 17.0
 
Sept. 29, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 4.5 μg/m3 (4) 2.0 μg/m3 (8) 18.0
 
Sept. 29, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 3.1 μg/m3 (3) 3.0 μg/m3 (12) 22.0
 
Sept. 29, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 3.6 μg/m3 (3) 1.0 μg/m3 (4) 24.0
 
Sept. 29, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 5.1 μg/m3 (5) 4.0 μg/m3 (17) 25.0
 
Sept. 29, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 6.4 μg/m3 (6) 5.0 μg/m3 (21) 27.0
 
Sept. 29, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 7.3 μg/m3 (7) 4.0 μg/m3 (17) 28.0
 
Sept. 29, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 8.5 μg/m3 (8) 5.0 μg/m3 (21) 28.0
 
Sept. 29, 2020, midnight N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 10.9 μg/m3 (10) 5.0 μg/m3 (21) 29.0
 
Sept. 28, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 17.8 μg/m3 (16) 2.0 μg/m3 (8) 30.0
 
Sept. 28, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 14.6 μg/m3 (13) 1.0 μg/m3 (4) 31.0
 
Sept. 28, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 11.4 μg/m3 (10) 1.0 μg/m3 (4) 31.0
 
Sept. 28, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 13.8 μg/m3 (13) 4.0 μg/m3 (17) 29.0
 
Sept. 28, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 11.1 μg/m3 (10) 5.0 μg/m3 (21) 28.0
 
Sept. 28, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 17.0 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
Sept. 28, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 16.6 μg/m3 (15) 4.0 μg/m3 (17) 18.0
 
Sept. 28, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 14.6 μg/m3 (13) 4.0 μg/m3 (17) 17.0
 
Sept. 28, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 9.2 μg/m3 (8) 2.0 μg/m3 (8) 16.0
 
Sept. 28, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 3.1 μg/m3 (3) 3.0 μg/m3 (12) 22.0
 
Sept. 28, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 2.3 μg/m3 (2) 1.0 μg/m3 (4) 24.0
 
Sept. 28, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 5.3 μg/m3 (5) 1.0 μg/m3 (4) 5.0
 
Sept. 28, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 5.4 μg/m3 (5) 2.0 μg/m3 (8) 29.0
 
Sept. 28, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 4.3 μg/m3 (4) 4.0 μg/m3 (17) 29.0
 
Sept. 28, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 3.2 μg/m3 (3) 7.0 μg/m3 (29) 29.0
 
Sept. 28, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 5.5 μg/m3 (5) 8.0 μg/m3 (33) 33.0
 
Sept. 28, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 7.9 μg/m3 (7) 7.0 μg/m3 (29) 29.0
 
Sept. 28, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 13.2 μg/m3 (12) 7.0 μg/m3 (29) 29.0
 
Sept. 28, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 9.9 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
Sept. 28, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 9.0 μg/m3 (8) 8.0 μg/m3 (33) 33.0
 
Sept. 28, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 17.4 μg/m3 (16) 7.0 μg/m3 (29) 29.0
 
Sept. 28, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 10.6 μg/m3 (10) 5.0 μg/m3 (21) 32.0
 
Sept. 28, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 9.8 μg/m3 (9) 7.0 μg/m3 (29) 34.0
 
Sept. 28, 2020, midnight N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 18.0 μg/m3 (16) 11.0 μg/m3 (46) 46.0
 
Sept. 27, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 21.3 μg/m3 (19) 13.0 μg/m3 (52) 52.0
 
Sept. 27, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 22.4 μg/m3 (20) 10.0 μg/m3 (42) 42.0
 
Sept. 27, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 20.3 μg/m3 (18) 10.0 μg/m3 (42) 42.0
 
Sept. 27, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 20.0 μg/m3 (18) 6.0 μg/m3 (25) 28.0
 
Sept. 27, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 16.0 μg/m3 (15) 8.0 μg/m3 (33) 33.0
 
Sept. 27, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 35.0 μg/m3 (32) 13.0 μg/m3 (52) 52.0
 
Sept. 27, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 34.2 μg/m3 (31) 16.0 μg/m3 (59) 59.0
 
Sept. 27, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 38.4 μg/m3 (35) 12.0 μg/m3 (50) 50.0
 
Sept. 27, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 41.8 μg/m3 (38) 19.0 μg/m3 (65) 65.0
 
Sept. 27, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 32.5 μg/m3 (30) 13.0 μg/m3 (52) 52.0
 
Sept. 27, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 38.3 μg/m3 (35) 14.0 μg/m3 (54) 54.0
 
Sept. 27, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 30.7 μg/m3 (28) 19.0 μg/m3 (65) 65.0
 
Sept. 27, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 41.5 μg/m3 (38) 18.0 μg/m3 (63) 63.0
 
Sept. 27, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 41.0 μg/m3 (37) 16.0 μg/m3 (59) 59.0
 
Sept. 27, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 43.6 μg/m3 (40) 18.0 μg/m3 (63) 63.0
 
Sept. 27, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 43.0 μg/m3 (39) 13.0 μg/m3 (52) 52.0
 
Sept. 27, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 32.4 μg/m3 (29) 9.0 μg/m3 (38) 38.0
 
Sept. 27, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 48.7 μg/m3 (44) 20.0 μg/m3 (67) 67.0
 
Sept. 27, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 33.1 μg/m3 (30) 13.0 μg/m3 (52) 52.0
 
Sept. 27, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 29.6 μg/m3 (27) 10.0 μg/m3 (42) 42.0
 
Sept. 27, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 28.0 μg/m3 (25) 7.0 μg/m3 (29) 29.0
 
Sept. 27, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 32.3 μg/m3 (29) 9.0 μg/m3 (38) 38.0
 
Sept. 27, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 20.7 μg/m3 (19) N/A 22.0
 
Sept. 27, 2020, midnight N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 17.6 μg/m3 (16) 6.0 μg/m3 (25) 25.0
 
Sept. 26, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 22.2 μg/m3 (20) 6.0 μg/m3 (25) 25.0
 
Sept. 26, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 29.5 μg/m3 (27) 6.0 μg/m3 (25) 27.0
 
Sept. 26, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 31.4 μg/m3 (29) 8.0 μg/m3 (33) 33.0
 
Sept. 26, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 37.1 μg/m3 (34) 8.0 μg/m3 (33) 34.0
 
Sept. 26, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 32.4 μg/m3 (29) 8.0 μg/m3 (33) 33.0
 
Sept. 26, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 30.3 μg/m3 (28) 12.0 μg/m3 (50) 50.0
 
Sept. 26, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 34.1 μg/m3 (31) 11.0 μg/m3 (46) 46.0
 
Sept. 26, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 33.7 μg/m3 (31) 12.0 μg/m3 (50) 50.0
 
Sept. 26, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 34.5 μg/m3 (31) 12.0 μg/m3 (50) 50.0
 
Sept. 26, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 45.2 μg/m3 (41) 18.0 μg/m3 (63) 63.0
 
Sept. 26, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 29.0 μg/m3 (26) 14.0 μg/m3 (54) 54.0
 
Sept. 26, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 28.7 μg/m3 (26) 10.0 μg/m3 (42) 42.0
 
Sept. 26, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 30.5 μg/m3 (28) 11.0 μg/m3 (46) 46.0
 
Sept. 26, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 36.8 μg/m3 (33) 11.0 μg/m3 (46) 46.0
 
Sept. 26, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 28.1 μg/m3 (26) 14.0 μg/m3 (54) 54.0
 
Sept. 26, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 25.1 μg/m3 (23) 6.0 μg/m3 (25) 25.0
 
Sept. 26, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 21.9 μg/m3 (20) 7.0 μg/m3 (29) 29.0
 
Sept. 26, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 26.5 μg/m3 (24) 4.0 μg/m3 (17) 24.0
 
Sept. 26, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 33.0 μg/m3 (30) 6.0 μg/m3 (25) 30.0
 
Sept. 26, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 32.1 μg/m3 (29) N/A 29.0
 
Sept. 26, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 30.9 μg/m3 (28) 10.0 μg/m3 (42) 42.0
 
Sept. 26, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 26.9 μg/m3 (24) 10.0 μg/m3 (42) 42.0
 
Sept. 26, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 30.0 μg/m3 (27) 10.0 μg/m3 (42) 42.0
 
Sept. 26, 2020, midnight N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 29.1 μg/m3 (26) 8.0 μg/m3 (33) 33.0
 
Sept. 25, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 30.8 μg/m3 (28) 9.0 μg/m3 (38) 38.0
 
Sept. 25, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 33.0 μg/m3 (30) 9.0 μg/m3 (38) 38.0
 
Sept. 25, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 30.4 μg/m3 (28) 9.0 μg/m3 (38) 38.0
 
Sept. 25, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 42.0 μg/m3 (38) 8.0 μg/m3 (33) 38.0
 
Sept. 25, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 36.6 μg/m3 (33) 11.0 μg/m3 (46) 46.0
 
Sept. 25, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 35.0 μg/m3 (32) 9.0 μg/m3 (38) 38.0
 
Sept. 25, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 35.8 μg/m3 (33) 12.0 μg/m3 (50) 50.0
 
Sept. 25, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 37.3 μg/m3 (34) 9.0 μg/m3 (38) 38.0
 
Sept. 25, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 19.9 μg/m3 (18) 7.0 μg/m3 (29) 29.0
 
Sept. 25, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 33.2 μg/m3 (30) 10.0 μg/m3 (42) 42.0
 
Sept. 25, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 32.4 μg/m3 (29) 9.0 μg/m3 (38) 38.0
 
Sept. 25, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 24.9 μg/m3 (23) 11.0 μg/m3 (46) 46.0
 
Sept. 25, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 31.8 μg/m3 (29) 14.0 μg/m3 (54) 54.0
 
Sept. 25, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 35.5 μg/m3 (32) 14.0 μg/m3 (54) 54.0
 
Sept. 25, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 38.7 μg/m3 (35) 7.0 μg/m3 (29) 35.0
 
Sept. 25, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 29.8 μg/m3 (27) 5.0 μg/m3 (21) 27.0
 
Sept. 25, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 26.0 μg/m3 (24) 3.0 μg/m3 (12) 24.0
 
Sept. 25, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 16.1 μg/m3 (15) 3.0 μg/m3 (12) 18.0
 
Sept. 25, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 16.5 μg/m3 (15) 4.0 μg/m3 (17) 17.0
 
Sept. 25, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 17.3 μg/m3 (16) 5.0 μg/m3 (21) 21.0
 
Sept. 25, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 14.1 μg/m3 (13) 3.0 μg/m3 (12) 18.0
 
Sept. 25, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 13.7 μg/m3 (12) 1.0 μg/m3 (4) 18.0
 
Sept. 25, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 20.3 μg/m3 (18) 1.0 μg/m3 (4) 18.0
 
Sept. 25, 2020, midnight N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 13.5 μg/m3 (12) 1.0 μg/m3 (4) 18.0
 
Sept. 24, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 14.5 μg/m3 (13) 3.0 μg/m3 (12) 18.0
 
Sept. 24, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 21.5 μg/m3 (20) 2.0 μg/m3 (8) 20.0
 
Sept. 24, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 24.3 μg/m3 (22) 2.0 μg/m3 (8) 22.0
 
Sept. 24, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 25.8 μg/m3 (23) 4.0 μg/m3 (17) 23.0
 
Sept. 24, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 23.1 μg/m3 (21) 2.0 μg/m3 (8) 24.0
 
Sept. 24, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 21.4 μg/m3 (19) 2.0 μg/m3 (8) 27.0
 
Sept. 24, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 14.4 μg/m3 (13) 3.0 μg/m3 (12) 23.0
 
Sept. 24, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 11.2 μg/m3 (10) 3.0 μg/m3 (12) 21.0
 
Sept. 24, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 14.9 μg/m3 (14) 3.0 μg/m3 (12) 20.0
 
Sept. 24, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 14.8 μg/m3 (13) 2.0 μg/m3 (8) 18.0
 
Sept. 24, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 19.9 μg/m3 (18) 3.0 μg/m3 (12) 21.0
 
Sept. 24, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 24.8 μg/m3 (23) 2.0 μg/m3 (8) 23.0
 
Sept. 24, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 25.3 μg/m3 (23) 3.0 μg/m3 (12) 23.0
 
Sept. 24, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 26.0 μg/m3 (24) 4.0 μg/m3 (17) 24.0
 
Sept. 24, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 22.0 μg/m3 (20) 6.0 μg/m3 (25) 25.0
 
Sept. 24, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 26.0 μg/m3 (24) 6.0 μg/m3 (25) 25.0
 
Sept. 24, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 18.0 μg/m3 (16) 4.0 μg/m3 (17) 17.0
 
Sept. 24, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 14.0 μg/m3 (13) 4.0 μg/m3 (17) 17.0
 
Sept. 24, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 24.0 μg/m3 (22) 4.0 μg/m3 (17) 22.0
 
Sept. 24, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 19.0 μg/m3 (17) 5.0 μg/m3 (21) 21.0
 
Sept. 24, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 15.0 μg/m3 (14) 6.0 μg/m3 (25) 25.0
 
Sept. 24, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 18.0 μg/m3 (16) 10.0 μg/m3 (42) 42.0
 
Sept. 24, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 23.0 μg/m3 (21) 10.0 μg/m3 (42) 42.0
 
Sept. 24, 2020, midnight N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 24.0 μg/m3 (22) 11.0 μg/m3 (46) 46.0
 
Sept. 23, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 23.0 μg/m3 (21) 8.0 μg/m3 (33) 33.0
 
Sept. 23, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 19.0 μg/m3 (17) 3.0 μg/m3 (12) 32.0
 
Sept. 23, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 25.0 μg/m3 (23) 5.0 μg/m3 (21) 32.0
 
Sept. 23, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 23.0 μg/m3 (21) 7.0 μg/m3 (29) 29.0
 
Sept. 23, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 27.0 μg/m3 (25) 6.0 μg/m3 (25) 27.0
 
Sept. 23, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 23.0 μg/m3 (21) 5.0 μg/m3 (21) 25.0
 
Sept. 23, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 28.0 μg/m3 (25) 4.0 μg/m3 (17) 25.0
 
Sept. 23, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 29.0 μg/m3 (26) 5.0 μg/m3 (21) 26.0
 
Sept. 23, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A 39.0 μg/m3 (35) N/A 35.0
 
Sept. 23, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 57.0 μg/m3 (51) 4.0 μg/m3 (17) 51.0
 
Sept. 23, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 18.0 μg/m3 (16) 4.0 μg/m3 (17) 17.0
 
Sept. 23, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 4.0 μg/m3 (17) 17.0
 
Sept. 23, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A 8.0 μg/m3 (7) 2.0 μg/m3 (8) 8.0
 
Sept. 23, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) N/A 6.0 μg/m3 (5) 3.0 μg/m3 (12) 12.0
 
Sept. 23, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 6.0 μg/m3 (5) 3.0 μg/m3 (12) 12.0
 
Sept. 23, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 3.0 μg/m3 (3) 4.0 μg/m3 (17) 17.0
 
Sept. 23, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 4.0 μg/m3 (4) 3.0 μg/m3 (12) 12.0
 
Sept. 23, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 6.0 μg/m3 (5) 3.0 μg/m3 (12) 12.0
 
Sept. 23, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 9.0 μg/m3 (8) 4.0 μg/m3 (17) 17.0
 
Sept. 23, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 10.0 μg/m3 (9) 4.0 μg/m3 (17) 17.0
 
Sept. 23, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 4.0 μg/m3 (4) 2.0 μg/m3 (8) 15.0
 
Sept. 23, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 4.0 μg/m3 (4) 2.0 μg/m3 (8) 18.0
 
Sept. 23, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 8.0 μg/m3 (7) 2.0 μg/m3 (8) 20.0
 
Sept. 23, 2020, midnight N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 12.0 μg/m3 (11) 1.0 μg/m3 (4) 22.0
 
Sept. 22, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 13.0 μg/m3 (12) 2.0 μg/m3 (8) 23.0
 
Sept. 22, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 17.0 μg/m3 (15) 5.0 μg/m3 (21) 24.0
 
Sept. 22, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 10.0 μg/m3 (9) 5.0 μg/m3 (21) 25.0
 
Sept. 22, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 11.0 μg/m3 (10) 2.0 μg/m3 (8) 24.0
 
Sept. 22, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 10.0 μg/m3 (9) 2.0 μg/m3 (8) 23.0
 
Sept. 22, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 18.0 μg/m3 (16) 4.0 μg/m3 (17) 18.0
 
Sept. 22, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 7.0 μg/m3 (6) 7.0 μg/m3 (29) 29.0
 
Sept. 22, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 9.0 μg/m3 (8) 5.0 μg/m3 (21) 21.0
 
Sept. 22, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 11.0 μg/m3 (10) 5.0 μg/m3 (21) 21.0
 
Sept. 22, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 10.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
Sept. 22, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 7.0 μg/m3 (6) 5.0 μg/m3 (21) 21.0
 
Sept. 22, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 7.0 μg/m3 (29) 29.0
 
Sept. 22, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 10.0 μg/m3 (9) 9.0 μg/m3 (38) 38.0
 
Sept. 22, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 7.0 μg/m3 (6) 8.0 μg/m3 (33) 33.0