ID: 1249

AQSQID: 330150014

Site Name: Portsmouth

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

Updated: Oct. 30, 2020, 1:41 p.m.

Location: Portsmouth (Downtown), NH

Reporting: True, Located: True

Current AQI: 25.0

Portsmouth (Downtown) NH, US: 43.075371, -70.748017

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Oct. 30, 2020, noon N/A N/A N/A N/A N/A 1.0 ppb (2) 26.0 ppb (25) N/A 6.9 μg/m3 (7) 3.2 μg/m3 (14) 25.0
 
Oct. 30, 2020, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 27.0 ppb (25) N/A 5.4 μg/m3 (5) 3.6 μg/m3 (16) 25.0
 
Oct. 30, 2020, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 28.0 ppb (26) N/A 6.2 μg/m3 (6) 3.9 μg/m3 (17) 26.0
 
Oct. 30, 2020, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A 7.3 μg/m3 (7) 4.2 μg/m3 (18) 18.0
 
Oct. 30, 2020, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 26.0 ppb (25) N/A 7.1 μg/m3 (7) 4.1 μg/m3 (18) 25.0
 
Oct. 30, 2020, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 28.0 ppb (26) N/A 6.0 μg/m3 (6) 3.8 μg/m3 (16) 26.0
 
Oct. 30, 2020, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 28.0 ppb (26) N/A 5.8 μg/m3 (6) 3.9 μg/m3 (17) 26.0
 
Oct. 30, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 4.3 μg/m3 (4) 3.1 μg/m3 (13) 24.0
 
Oct. 30, 2020, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 25.0 ppb (24) N/A 4.1 μg/m3 (4) 2.5 μg/m3 (11) 24.0
 
Oct. 30, 2020, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 22.0 ppb (21) N/A 5.6 μg/m3 (6) 3.6 μg/m3 (16) 21.0
 
Oct. 30, 2020, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 23.0 ppb (22) N/A 9.7 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
Oct. 30, 2020, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 20.0 ppb (19) N/A 11.6 μg/m3 (11) 6.7 μg/m3 (28) 28.0
 
Oct. 30, 2020, midnight N/A N/A N/A N/A N/A 1.0 ppb (2) 23.0 ppb (22) N/A 11.5 μg/m3 (11) 6.9 μg/m3 (29) 29.0
 
Oct. 29, 2020, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 24.0 ppb (23) N/A 12.6 μg/m3 (12) 7.5 μg/m3 (32) 32.0
 
Oct. 29, 2020, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 20.0 ppb (19) N/A 14.9 μg/m3 (14) 8.7 μg/m3 (37) 37.0
 
Oct. 29, 2020, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 22.0 ppb (21) N/A 13.3 μg/m3 (13) 8.6 μg/m3 (36) 36.0
 
Oct. 29, 2020, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 18.0 ppb (17) N/A 13.2 μg/m3 (13) 8.7 μg/m3 (37) 37.0
 
Oct. 29, 2020, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 20.0 ppb (19) N/A 12.0 μg/m3 (12) 7.3 μg/m3 (31) 31.0
 
Oct. 29, 2020, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 15.0 ppb (14) N/A 17.9 μg/m3 (17) 7.7 μg/m3 (33) 33.0
 
Oct. 29, 2020, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 10.0 ppb (10) N/A 12.9 μg/m3 (12) 6.8 μg/m3 (29) 29.0
 
Oct. 29, 2020, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 11.0 ppb (11) N/A 12.2 μg/m3 (12) 6.4 μg/m3 (27) 27.0
 
Oct. 29, 2020, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 9.0 ppb (9) N/A 12.9 μg/m3 (12) 6.7 μg/m3 (28) 28.0
 
Oct. 29, 2020, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 6.0 ppb (6) N/A 11.7 μg/m3 (11) 6.1 μg/m3 (26) 26.0
 
Oct. 29, 2020, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 5.0 ppb (5) N/A 12.8 μg/m3 (12) 6.1 μg/m3 (26) 26.0
 
Oct. 29, 2020, noon N/A N/A N/A N/A N/A 1.0 ppb (2) 3.0 ppb (3) N/A 11.7 μg/m3 (11) 6.1 μg/m3 (26) 26.0
 
Oct. 29, 2020, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 3.0 ppb (3) N/A 10.1 μg/m3 (10) 6.2 μg/m3 (26) 26.0
 
Oct. 29, 2020, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 4.0 ppb (4) N/A 10.2 μg/m3 (10) 6.6 μg/m3 (28) 28.0
 
Oct. 29, 2020, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 7.0 ppb (7) N/A 9.8 μg/m3 (10) 6.7 μg/m3 (28) 28.0
 
Oct. 29, 2020, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 9.0 ppb (9) N/A 9.4 μg/m3 (9) 6.4 μg/m3 (27) 27.0
 
Oct. 29, 2020, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 10.0 ppb (10) N/A 9.0 μg/m3 (9) 6.1 μg/m3 (26) 26.0
 
Oct. 29, 2020, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 11.0 ppb (11) N/A 9.4 μg/m3 (9) 6.3 μg/m3 (27) 27.0
 
Oct. 29, 2020, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 12.0 ppb (12) N/A 9.9 μg/m3 (10) 6.3 μg/m3 (27) 27.0
 
Oct. 29, 2020, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 12.0 ppb (12) N/A 9.5 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
Oct. 29, 2020, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 10.0 ppb (10) N/A 8.8 μg/m3 (9) 5.8 μg/m3 (25) 25.0
 
Oct. 29, 2020, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 10.0 ppb (10) N/A 8.6 μg/m3 (8) 5.4 μg/m3 (23) 23.0
 
Oct. 29, 2020, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 11.0 ppb (11) N/A 8.5 μg/m3 (8) 4.5 μg/m3 (19) 19.0
 
Oct. 29, 2020, midnight N/A N/A N/A N/A N/A 1.0 ppb (2) 13.0 ppb (13) N/A 5.8 μg/m3 (6) 3.2 μg/m3 (14) 14.0
 
Oct. 28, 2020, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 14.0 ppb (13) N/A 7.3 μg/m3 (7) 3.6 μg/m3 (16) 16.0
 
Oct. 28, 2020, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 13.0 ppb (13) N/A 6.6 μg/m3 (7) 4.4 μg/m3 (19) 19.0
 
Oct. 28, 2020, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 14.0 ppb (13) N/A 4.3 μg/m3 (4) 2.8 μg/m3 (12) 13.0
 
Oct. 28, 2020, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 19.0 ppb (18) N/A 5.1 μg/m3 (5) 3.1 μg/m3 (13) 18.0
 
Oct. 28, 2020, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 20.0 ppb (19) N/A 5.0 μg/m3 (5) 3.2 μg/m3 (14) 19.0
 
Oct. 28, 2020, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 20.0 ppb (19) N/A 5.9 μg/m3 (6) 3.7 μg/m3 (16) 19.0
 
Oct. 28, 2020, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 18.0 ppb (17) N/A 7.2 μg/m3 (7) 4.3 μg/m3 (18) 18.0
 
Oct. 28, 2020, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 17.0 ppb (16) N/A 8.8 μg/m3 (9) 5.3 μg/m3 (23) 23.0
 
Oct. 28, 2020, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 13.0 ppb (13) N/A 9.2 μg/m3 (9) 5.3 μg/m3 (23) 23.0
 
Oct. 28, 2020, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 12.0 ppb (12) N/A 9.2 μg/m3 (9) 5.5 μg/m3 (23) 23.0
 
Oct. 28, 2020, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 13.0 ppb (13) N/A 7.4 μg/m3 (7) 4.4 μg/m3 (19) 19.0
 
Oct. 28, 2020, noon N/A N/A N/A N/A N/A 1.0 ppb (2) 14.0 ppb (13) N/A 7.5 μg/m3 (7) 4.3 μg/m3 (18) 18.0
 
Oct. 28, 2020, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 12.0 ppb (12) N/A 7.1 μg/m3 (7) 4.2 μg/m3 (18) 18.0
 
Oct. 28, 2020, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 16.0 ppb (15) N/A 7.6 μg/m3 (8) 4.5 μg/m3 (19) 19.0
 
Oct. 28, 2020, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 14.0 ppb (13) N/A 7.4 μg/m3 (7) 4.5 μg/m3 (19) 19.0
 
Oct. 28, 2020, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 11.0 ppb (11) N/A 6.8 μg/m3 (7) 4.1 μg/m3 (18) 18.0
 
Oct. 28, 2020, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 12.0 ppb (12) N/A 6.5 μg/m3 (7) 3.8 μg/m3 (16) 16.0
 
Oct. 28, 2020, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 19.0 ppb (18) N/A 6.3 μg/m3 (6) 3.5 μg/m3 (15) 18.0
 
Oct. 28, 2020, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 19.0 ppb (18) N/A 5.0 μg/m3 (5) 3.1 μg/m3 (13) 18.0
 
Oct. 28, 2020, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 25.0 ppb (24) N/A 4.4 μg/m3 (5) 3.0 μg/m3 (13) 24.0
 
Oct. 28, 2020, 3 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 26.0 ppb (25) N/A 7.2 μg/m3 (7) 3.4 μg/m3 (15) 25.0
 
Oct. 28, 2020, 2 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 25.0 ppb (24) N/A 7.8 μg/m3 (8) 3.9 μg/m3 (17) 24.0
 
Oct. 28, 2020, 1 a.m. N/A N/A N/A N/A N/A 3.0 ppb (5) 25.0 ppb (24) N/A 11.8 μg/m3 (11) 4.0 μg/m3 (17) 24.0
 
Oct. 28, 2020, midnight N/A N/A N/A N/A N/A 4.0 ppb (6) 26.0 ppb (25) N/A 9.9 μg/m3 (10) 3.7 μg/m3 (16) 25.0
 
Oct. 27, 2020, 11 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 27.0 ppb (25) N/A 8.4 μg/m3 (8) 3.6 μg/m3 (16) 25.0
 
Oct. 27, 2020, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 25.0 ppb (24) N/A 6.8 μg/m3 (7) 3.0 μg/m3 (13) 24.0
 
Oct. 27, 2020, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 25.0 ppb (24) N/A 10.5 μg/m3 (10) 2.9 μg/m3 (13) 24.0
 
Oct. 27, 2020, 8 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 26.0 ppb (25) N/A 14.2 μg/m3 (14) 3.2 μg/m3 (14) 25.0
 
Oct. 27, 2020, 7 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 27.0 ppb (25) N/A 9.7 μg/m3 (9) 2.7 μg/m3 (12) 25.0
 
Oct. 27, 2020, 6 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 26.0 ppb (25) N/A 9.2 μg/m3 (9) 2.7 μg/m3 (12) 25.0
 
Oct. 27, 2020, 5 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 26.0 ppb (25) N/A 7.9 μg/m3 (8) 2.3 μg/m3 (10) 25.0
 
Oct. 27, 2020, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 24.0 ppb (23) N/A 6.9 μg/m3 (7) 2.3 μg/m3 (10) 23.0
 
Oct. 27, 2020, 3 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 22.0 ppb (21) N/A 10.2 μg/m3 (10) 3.0 μg/m3 (13) 21.0
 
Oct. 27, 2020, 2 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 20.0 ppb (19) N/A 8.9 μg/m3 (9) 2.9 μg/m3 (13) 19.0
 
Oct. 27, 2020, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 19.0 ppb (18) N/A 7.2 μg/m3 (7) 2.6 μg/m3 (11) 18.0
 
Oct. 27, 2020, noon N/A N/A N/A N/A N/A 1.0 ppb (2) 17.0 ppb (16) N/A 6.4 μg/m3 (6) 2.1 μg/m3 (9) 16.0
 
Oct. 27, 2020, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 11.0 ppb (11) N/A 6.6 μg/m3 (7) 2.4 μg/m3 (10) 11.0
 
Oct. 27, 2020, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 10.0 ppb (10) N/A 8.7 μg/m3 (9) 3.0 μg/m3 (13) 13.0
 
Oct. 27, 2020, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 9.0 ppb (9) N/A 8.2 μg/m3 (8) 3.9 μg/m3 (17) 17.0
 
Oct. 27, 2020, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 8.0 ppb (8) N/A 9.4 μg/m3 (9) 5.4 μg/m3 (23) 23.0
 
Oct. 27, 2020, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 8.0 ppb (8) N/A 9.6 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
Oct. 27, 2020, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 8.0 ppb (8) N/A 10.2 μg/m3 (10) 6.6 μg/m3 (28) 28.0
 
Oct. 27, 2020, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 9.0 ppb (9) N/A 10.6 μg/m3 (10) 6.6 μg/m3 (28) 28.0
 
Oct. 27, 2020, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 9.0 ppb (9) N/A 10.4 μg/m3 (10) 6.7 μg/m3 (28) 28.0
 
Oct. 27, 2020, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 8.0 ppb (8) N/A 14.7 μg/m3 (14) 8.8 μg/m3 (37) 37.0
 
Oct. 27, 2020, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 7.0 ppb (7) N/A 25.8 μg/m3 (24) 9.5 μg/m3 (40) 40.0
 
Oct. 27, 2020, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 8.0 ppb (8) N/A 16.1 μg/m3 (15) 7.3 μg/m3 (31) 31.0
 
Oct. 27, 2020, midnight N/A N/A N/A N/A N/A 1.0 ppb (2) 9.0 ppb (9) N/A 10.5 μg/m3 (10) 6.4 μg/m3 (27) 27.0
 
Oct. 26, 2020, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 8.0 ppb (8) N/A 10.2 μg/m3 (10) 5.8 μg/m3 (25) 25.0
 
Oct. 26, 2020, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 8.0 ppb (8) N/A 17.3 μg/m3 (17) 6.5 μg/m3 (28) 28.0
 
Oct. 26, 2020, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 21.0 ppb (20) N/A 7.2 μg/m3 (7) 3.4 μg/m3 (15) 20.0
 
Oct. 26, 2020, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 27.0 ppb (25) N/A 9.6 μg/m3 (9) 4.1 μg/m3 (18) 25.0
 
Oct. 26, 2020, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 28.0 ppb (26) N/A 11.8 μg/m3 (11) 4.6 μg/m3 (20) 26.0
 
Oct. 26, 2020, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 29.0 ppb (27) N/A 11.5 μg/m3 (11) 4.4 μg/m3 (19) 27.0
 
Oct. 26, 2020, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 29.0 ppb (27) N/A 11.4 μg/m3 (11) 4.5 μg/m3 (19) 27.0
 
Oct. 26, 2020, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 29.0 ppb (27) N/A 11.5 μg/m3 (11) 4.5 μg/m3 (19) 27.0
 
Oct. 26, 2020, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 29.0 ppb (27) N/A 10.5 μg/m3 (10) 4.4 μg/m3 (19) 27.0
 
Oct. 26, 2020, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 28.0 ppb (26) N/A 10.8 μg/m3 (10) 5.0 μg/m3 (21) 26.0
 
Oct. 26, 2020, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 19.0 ppb (18) N/A 10.0 μg/m3 (10) 5.4 μg/m3 (23) 23.0
 
Oct. 26, 2020, noon N/A N/A N/A N/A N/A 1.0 ppb (2) 12.0 ppb (12) N/A 10.3 μg/m3 (10) 5.4 μg/m3 (23) 23.0
 
Oct. 26, 2020, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 14.0 ppb (13) N/A 10.3 μg/m3 (10) 4.8 μg/m3 (20) 20.0
 
Oct. 26, 2020, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 26.0 ppb (25) N/A 10.0 μg/m3 (10) 4.2 μg/m3 (18) 25.0
 
Oct. 26, 2020, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A 9.2 μg/m3 (9) 5.0 μg/m3 (21) 21.0
 
Oct. 26, 2020, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 16.0 ppb (15) N/A 9.2 μg/m3 (9) 5.4 μg/m3 (23) 23.0
 
Oct. 26, 2020, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 18.0 ppb (17) N/A 9.0 μg/m3 (9) 5.4 μg/m3 (23) 23.0
 
Oct. 26, 2020, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 18.0 ppb (17) N/A 9.3 μg/m3 (9) 5.5 μg/m3 (23) 23.0
 
Oct. 26, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 9.8 μg/m3 (10) 5.9 μg/m3 (25) 25.0
 
Oct. 26, 2020, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 17.0 ppb (16) N/A 11.1 μg/m3 (11) 6.6 μg/m3 (28) 28.0
 
Oct. 26, 2020, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 16.0 ppb (15) N/A 14.5 μg/m3 (14) 8.9 μg/m3 (38) 38.0
 
Oct. 26, 2020, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 15.0 ppb (14) N/A 18.5 μg/m3 (18) 12.7 μg/m3 (53) 53.0
 
Oct. 26, 2020, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 15.0 ppb (14) N/A 20.9 μg/m3 (20) 14.0 μg/m3 (55) 55.0
 
Oct. 26, 2020, midnight N/A N/A N/A N/A N/A 1.0 ppb (2) 21.0 ppb (20) N/A 9.8 μg/m3 (10) 5.7 μg/m3 (24) 24.0
 
Oct. 25, 2020, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 26.0 ppb (25) N/A 10.1 μg/m3 (10) 4.9 μg/m3 (21) 25.0
 
Oct. 25, 2020, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 25.0 ppb (24) N/A 10.6 μg/m3 (10) 4.9 μg/m3 (21) 24.0
 
Oct. 25, 2020, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 25.0 ppb (24) N/A 11.4 μg/m3 (11) 4.8 μg/m3 (20) 24.0
 
Oct. 25, 2020, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 24.0 ppb (23) N/A 9.5 μg/m3 (9) 4.4 μg/m3 (19) 23.0
 
Oct. 25, 2020, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 24.0 ppb (23) N/A 10.7 μg/m3 (10) 4.4 μg/m3 (19) 23.0
 
Oct. 25, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 9.1 μg/m3 (9) 4.3 μg/m3 (18) 22.0
 
Oct. 25, 2020, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 23.0 ppb (22) N/A 7.5 μg/m3 (7) 4.1 μg/m3 (18) 22.0
 
Oct. 25, 2020, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 24.0 ppb (23) N/A 6.0 μg/m3 (6) 3.9 μg/m3 (17) 23.0
 
Oct. 25, 2020, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 24.0 ppb (23) N/A 6.4 μg/m3 (6) 3.8 μg/m3 (16) 23.0
 
Oct. 25, 2020, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A 6.3 μg/m3 (6) 3.9 μg/m3 (17) 17.0
 
Oct. 25, 2020, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 22.0 ppb (21) N/A 7.9 μg/m3 (8) 4.4 μg/m3 (19) 21.0
 
Oct. 25, 2020, noon N/A N/A N/A N/A N/A 1.0 ppb (2) 14.0 ppb (13) N/A 8.6 μg/m3 (8) 4.5 μg/m3 (19) 19.0
 
Oct. 25, 2020, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 12.0 ppb (12) N/A 9.9 μg/m3 (10) 4.3 μg/m3 (18) 18.0
 
Oct. 25, 2020, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 16.0 ppb (15) N/A 9.4 μg/m3 (9) 4.1 μg/m3 (18) 18.0
 
Oct. 25, 2020, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 18.0 ppb (17) N/A 7.6 μg/m3 (8) 3.7 μg/m3 (16) 17.0
 
Oct. 25, 2020, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 19.0 ppb (18) N/A 7.0 μg/m3 (7) 3.6 μg/m3 (16) 18.0
 
Oct. 25, 2020, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 19.0 ppb (18) N/A 7.5 μg/m3 (7) 3.7 μg/m3 (16) 18.0
 
Oct. 25, 2020, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 18.0 ppb (17) N/A 9.8 μg/m3 (10) 4.1 μg/m3 (18) 18.0
 
Oct. 25, 2020, 5 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 18.0 ppb (17) N/A 7.3 μg/m3 (7) 3.5 μg/m3 (15) 17.0
 
Oct. 25, 2020, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 17.0 ppb (16) N/A 8.6 μg/m3 (8) 3.8 μg/m3 (16) 16.0
 
Oct. 25, 2020, 3 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 16.0 ppb (15) N/A 13.4 μg/m3 (13) 4.8 μg/m3 (20) 20.0
 
Oct. 25, 2020, 2 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 15.0 ppb (14) N/A 10.6 μg/m3 (10) 3.9 μg/m3 (17) 17.0
 
Oct. 25, 2020, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 15.0 ppb (14) N/A 8.1 μg/m3 (8) 3.9 μg/m3 (17) 17.0
 
Oct. 25, 2020, midnight N/A N/A N/A N/A N/A 1.0 ppb (2) 15.0 ppb (14) N/A 6.9 μg/m3 (7) 3.4 μg/m3 (15) 15.0
 
Oct. 24, 2020, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 17.0 ppb (16) N/A 6.8 μg/m3 (7) 2.9 μg/m3 (13) 16.0
 
Oct. 24, 2020, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 17.0 ppb (16) N/A 9.1 μg/m3 (9) 3.2 μg/m3 (14) 16.0
 
Oct. 24, 2020, 9 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 15.0 ppb (14) N/A 15.3 μg/m3 (15) 5.1 μg/m3 (22) 22.0
 
Oct. 24, 2020, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 20.0 ppb (19) N/A 23.8 μg/m3 (23) 9.7 μg/m3 (41) 41.0
 
Oct. 24, 2020, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 24.0 ppb (23) N/A 24.4 μg/m3 (23) 9.8 μg/m3 (41) 41.0
 
Oct. 24, 2020, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 26.0 ppb (25) N/A 22.2 μg/m3 (21) 9.0 μg/m3 (38) 38.0
 
Oct. 24, 2020, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 28.0 ppb (26) N/A 20.4 μg/m3 (19) 8.4 μg/m3 (36) 36.0
 
Oct. 24, 2020, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 27.0 ppb (25) N/A 22.9 μg/m3 (22) 9.1 μg/m3 (38) 38.0
 
Oct. 24, 2020, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 25.0 ppb (24) N/A 21.4 μg/m3 (20) 9.1 μg/m3 (38) 38.0
 
Oct. 24, 2020, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 25.0 ppb (24) N/A 15.4 μg/m3 (15) 7.9 μg/m3 (33) 33.0
 
Oct. 24, 2020, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 25.0 ppb (24) N/A 23.3 μg/m3 (22) 9.6 μg/m3 (40) 40.0
 
Oct. 24, 2020, noon N/A N/A N/A N/A N/A 1.0 ppb (2) 24.0 ppb (23) N/A 15.6 μg/m3 (15) 8.7 μg/m3 (37) 37.0
 
Oct. 24, 2020, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 24.0 ppb (23) N/A 14.5 μg/m3 (14) 9.0 μg/m3 (38) 38.0
 
Oct. 24, 2020, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 24.0 ppb (23) N/A 12.8 μg/m3 (12) 8.0 μg/m3 (34) 34.0
 
Oct. 24, 2020, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 24.0 ppb (23) N/A 13.2 μg/m3 (13) 8.1 μg/m3 (34) 34.0
 
Oct. 24, 2020, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 24.0 ppb (23) N/A 13.9 μg/m3 (13) 7.6 μg/m3 (32) 32.0
 
Oct. 24, 2020, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 30.0 ppb (28) N/A 16.4 μg/m3 (16) 8.0 μg/m3 (34) 34.0
 
Oct. 24, 2020, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 27.0 ppb (25) N/A 25.4 μg/m3 (24) 10.0 μg/m3 (42) 42.0
 
Oct. 24, 2020, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 23.0 ppb (22) N/A 18.9 μg/m3 (18) 8.5 μg/m3 (36) 36.0
 
Oct. 24, 2020, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 23.0 ppb (22) N/A 16.1 μg/m3 (15) 7.8 μg/m3 (33) 33.0
 
Oct. 24, 2020, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 25.0 ppb (24) N/A 14.0 μg/m3 (13) 7.2 μg/m3 (31) 31.0
 
Oct. 24, 2020, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 26.0 ppb (25) N/A 14.6 μg/m3 (14) 7.3 μg/m3 (31) 31.0
 
Oct. 24, 2020, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 26.0 ppb (25) N/A 15.5 μg/m3 (15) 7.1 μg/m3 (30) 30.0
 
Oct. 24, 2020, midnight N/A N/A N/A N/A N/A 1.0 ppb (2) 25.0 ppb (24) N/A 13.9 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
Oct. 23, 2020, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 26.0 ppb (25) N/A 13.1 μg/m3 (13) 5.5 μg/m3 (23) 25.0
 
Oct. 23, 2020, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 25.0 ppb (24) N/A 12.3 μg/m3 (12) 5.3 μg/m3 (23) 24.0
 
Oct. 23, 2020, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 26.0 ppb (25) N/A 13.4 μg/m3 (13) 5.4 μg/m3 (23) 25.0
 
Oct. 23, 2020, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 25.0 ppb (24) N/A 13.3 μg/m3 (13) 5.3 μg/m3 (23) 24.0
 
Oct. 23, 2020, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 25.0 ppb (24) N/A 14.5 μg/m3 (14) 5.4 μg/m3 (23) 24.0
 
Oct. 23, 2020, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 23.0 ppb (22) N/A 13.7 μg/m3 (13) 5.3 μg/m3 (23) 23.0
 
Oct. 23, 2020, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 23.0 ppb (22) N/A 15.6 μg/m3 (15) 5.2 μg/m3 (22) 22.0
 
Oct. 23, 2020, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 25.0 ppb (24) N/A 13.5 μg/m3 (13) 5.1 μg/m3 (22) 24.0
 
Oct. 23, 2020, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 25.0 ppb (24) N/A 12.8 μg/m3 (12) 5.0 μg/m3 (21) 24.0
 
Oct. 23, 2020, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 24.0 ppb (23) N/A 10.5 μg/m3 (10) 4.1 μg/m3 (18) 23.0
 
Oct. 23, 2020, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 24.0 ppb (23) N/A 9.7 μg/m3 (9) 3.9 μg/m3 (17) 23.0