ID: 1249

AQSQID: 330150014

Site Name: Portsmouth

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

Updated: May 25, 2022, 10:50 p.m.

Location: Portsmouth (Downtown), NH

Reporting: True, Located: True

Current AQI: 29.0

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
May 25, 2022, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (29) N/A 16.0 μg/m3 (15) 4.2 μg/m3 (18) 29.0
 
May 25, 2022, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (28) N/A 15.0 μg/m3 (14) 3.8 μg/m3 (16) 28.0
 
May 25, 2022, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (28) N/A 15.0 μg/m3 (14) 3.8 μg/m3 (16) 28.0
 
May 25, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 16.0 μg/m3 (15) 3.7 μg/m3 (16) 28.0
 
May 25, 2022, 7 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 30.0 ppb (28) N/A 16.0 μg/m3 (15) 3.7 μg/m3 (16) 28.0
 
May 25, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 16.0 μg/m3 (15) 3.5 μg/m3 (15) 30.0
 
May 25, 2022, 6 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 32.0 ppb (30) N/A 16.0 μg/m3 (15) 3.5 μg/m3 (15) 30.0
 
May 25, 2022, 5 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 32.0 ppb (30) N/A 13.0 μg/m3 (13) 3.6 μg/m3 (16) 30.0
 
May 25, 2022, 5 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 32.0 ppb (30) N/A 13.0 μg/m3 (13) 3.6 μg/m3 (16) 30.0
 
May 25, 2022, 4 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 35.0 ppb (33) N/A 12.0 μg/m3 (12) 4.1 μg/m3 (18) 33.0
 
May 25, 2022, 3 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 31.0 ppb (29) N/A 15.0 μg/m3 (14) 4.7 μg/m3 (20) 29.0
 
May 25, 2022, 3 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 31.0 ppb (29) N/A 15.0 μg/m3 (14) 4.7 μg/m3 (20) 29.0
 
May 25, 2022, 1 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 24.0 ppb (23) N/A 12.0 μg/m3 (12) 4.6 μg/m3 (20) 23.0
 
May 25, 2022, 9 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 1.0 ppb (1) N/A 13.0 μg/m3 (13) 4.5 μg/m3 (19) 19.0
 
May 25, 2022, 5 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 15.0 ppb (14) N/A 9.0 μg/m3 (9) 3.7 μg/m3 (16) 16.0
 
May 25, 2022, 4 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 15.0 ppb (14) N/A 11.0 μg/m3 (11) 3.8 μg/m3 (16) 16.0
 
May 25, 2022, 1 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 29.0 ppb (27) N/A 9.0 μg/m3 (9) 3.4 μg/m3 (15) 27.0
 
May 25, 2022, midnight N/A N/A N/A N/A N/A 2.0 ppb (3) 29.0 ppb (27) N/A 10.0 μg/m3 (10) 3.5 μg/m3 (15) 27.0
 
May 24, 2022, 9 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 28.0 ppb (26) N/A 13.0 μg/m3 (13) 5.1 μg/m3 (22) 26.0
 
May 24, 2022, 8 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 29.0 ppb (27) N/A 12.0 μg/m3 (12) 4.6 μg/m3 (20) 27.0
 
May 24, 2022, 7 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 30.0 ppb (28) N/A 11.0 μg/m3 (11) 4.0 μg/m3 (17) 28.0
 
May 24, 2022, 6 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 30.0 ppb (28) N/A 8.0 μg/m3 (8) 3.6 μg/m3 (16) 28.0
 
May 24, 2022, 5 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 31.0 ppb (29) N/A 8.0 μg/m3 (8) 3.3 μg/m3 (14) 29.0
 
May 24, 2022, 4 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 31.0 ppb (29) N/A 7.0 μg/m3 (7) 3.4 μg/m3 (15) 29.0
 
May 24, 2022, 3 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 32.0 ppb (30) N/A 7.0 μg/m3 (7) 3.1 μg/m3 (13) 30.0
 
May 24, 2022, 2 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 31.0 ppb (29) N/A 7.0 μg/m3 (7) 3.0 μg/m3 (13) 29.0
 
May 24, 2022, 1 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 31.0 ppb (29) N/A 9.0 μg/m3 (9) 3.2 μg/m3 (14) 29.0
 
May 24, 2022, noon N/A N/A N/A N/A N/A 2.0 ppb (3) 30.0 ppb (28) N/A 12.0 μg/m3 (12) 3.5 μg/m3 (15) 28.0
 
May 24, 2022, 10 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 23.0 ppb (22) N/A 7.0 μg/m3 (7) 3.1 μg/m3 (13) 22.0
 
May 24, 2022, 9 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 22.0 ppb (21) N/A 6.0 μg/m3 (6) 2.9 μg/m3 (13) 21.0
 
May 24, 2022, 8 a.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) 2.5 μg/m3 (11) 23.0
 
May 24, 2022, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 26.0 ppb (25) N/A 6.0 μg/m3 (6) 1.7 μg/m3 (8) 25.0
 
May 24, 2022, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 27.0 ppb (25) N/A 5.0 μg/m3 (5) 1.4 μg/m3 (6) 25.0
 
May 24, 2022, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 27.0 ppb (25) N/A 5.0 μg/m3 (5) 1.4 μg/m3 (6) 25.0
 
May 24, 2022, 4 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 28.0 ppb (26) N/A 7.0 μg/m3 (7) 1.3 μg/m3 (6) 26.0
 
May 24, 2022, 4 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 28.0 ppb (26) N/A 7.0 μg/m3 (7) 1.3 μg/m3 (6) 26.0
 
May 24, 2022, 3 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 28.0 ppb (26) N/A 8.0 μg/m3 (8) 2.1 μg/m3 (9) 26.0
 
May 24, 2022, 3 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 28.0 ppb (26) N/A 8.0 μg/m3 (8) 2.1 μg/m3 (9) 26.0
 
May 24, 2022, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 25.0 ppb (24) N/A 9.0 μg/m3 (9) 3.4 μg/m3 (15) 24.0
 
May 24, 2022, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 25.0 ppb (24) N/A 9.0 μg/m3 (9) 3.4 μg/m3 (15) 24.0
 
May 24, 2022, 1 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) 3.6 μg/m3 (16) 24.0
 
May 24, 2022, 1 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) 3.6 μg/m3 (16) 24.0
 
May 24, 2022, midnight N/A N/A N/A N/A N/A 1.0 ppb (2) 29.0 ppb (27) N/A 10.0 μg/m3 (10) 2.9 μg/m3 (13) 27.0
 
May 24, 2022, midnight N/A N/A N/A N/A N/A 1.0 ppb (2) 29.0 ppb (27) N/A 10.0 μg/m3 (10) 2.9 μg/m3 (13) 27.0
 
May 23, 2022, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 32.0 ppb (30) N/A 8.0 μg/m3 (8) 2.4 μg/m3 (10) 30.0
 
May 23, 2022, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 32.0 ppb (30) N/A 8.0 μg/m3 (8) 2.4 μg/m3 (10) 30.0
 
May 23, 2022, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 32.0 ppb (30) N/A 10.0 μg/m3 (10) 2.8 μg/m3 (12) 30.0
 
May 23, 2022, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 30.0 ppb (28) N/A 13.0 μg/m3 (13) 3.1 μg/m3 (13) 28.0
 
May 23, 2022, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 29.0 ppb (27) N/A 14.0 μg/m3 (13) 3.3 μg/m3 (14) 27.0
 
May 23, 2022, 3 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 31.0 ppb (29) N/A 11.0 μg/m3 (11) 3.1 μg/m3 (13) 29.0
 
May 23, 2022, 2 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 29.0 ppb (27) N/A 11.0 μg/m3 (11) 3.1 μg/m3 (13) 27.0
 
May 23, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 11.0 μg/m3 (11) 3.1 μg/m3 (13) 21.0
 
May 23, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 12.0 μg/m3 (12) 3.1 μg/m3 (13) 25.0
 
May 23, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 12.0 μg/m3 (12) 3.1 μg/m3 (13) 25.0
 
May 23, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 11.0 μg/m3 (11) 2.8 μg/m3 (12) 25.0
 
May 23, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 22.0 μg/m3 (21) 10.0 μg/m3 (42) 42.0
 
May 23, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 18.0 μg/m3 (17) 9.4 μg/m3 (40) 40.0
 
May 23, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 21.0 μg/m3 (20) 12.9 μg/m3 (53) 53.0
 
May 23, 2022, midnight N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 43.0 μg/m3 (40) 22.9 μg/m3 (74) 74.0
 
May 22, 2022, 11 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 35.0 ppb (33) N/A 43.0 μg/m3 (40) 21.1 μg/m3 (70) 70.0
 
May 22, 2022, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A 29.0 μg/m3 (27) 17.7 μg/m3 (63) 63.0
 
May 22, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (24) 16.2 μg/m3 (60) 60.0
 
May 22, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (17) 12.9 μg/m3 (53) 53.0
 
May 22, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) 8.3 μg/m3 (35) 35.0
 
May 22, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) 5.1 μg/m3 (22) 22.0
 
May 22, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 5.2 μg/m3 (22) 22.0
 
May 22, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) 5.8 μg/m3 (25) 25.0
 
May 22, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (19) 7.8 μg/m3 (33) 33.0
 
May 22, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 53.0 μg/m3 (50) 11.3 μg/m3 (48) 50.0
 
May 22, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 53.0 μg/m3 (50) 11.3 μg/m3 (48) 50.0
 
May 22, 2022, noon N/A N/A N/A N/A N/A N/A N/A N/A 35.0 μg/m3 (33) 8.1 μg/m3 (34) 34.0
 
May 22, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (8) 5.1 μg/m3 (22) 22.0
 
May 22, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (8) 5.3 μg/m3 (23) 23.0
 
May 22, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (8) 5.6 μg/m3 (24) 24.0
 
May 22, 2022, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 5.6 μg/m3 (24) 24.0
 
May 22, 2022, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (8) 5.7 μg/m3 (24) 24.0
 
May 22, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 6.2 μg/m3 (26) 26.0
 
May 22, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (8) 5.4 μg/m3 (23) 23.0
 
May 22, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (7) 4.7 μg/m3 (20) 20.0
 
May 22, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (7) 5.0 μg/m3 (21) 21.0
 
May 22, 2022, midnight N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (7) 4.9 μg/m3 (21) 21.0
 
May 21, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) 6.0 μg/m3 (25) 25.0
 
May 21, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (11) 6.7 μg/m3 (28) 28.0
 
May 21, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 7.8 μg/m3 (33) 33.0
 
May 21, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) 8.5 μg/m3 (36) 36.0
 
May 21, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) 8.0 μg/m3 (34) 34.0
 
May 21, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) 7.3 μg/m3 (31) 31.0
 
May 21, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 6.4 μg/m3 (27) 27.0
 
May 21, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 6.9 μg/m3 (29) 29.0
 
May 21, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (24) 9.1 μg/m3 (38) 38.0
 
May 21, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 7.2 μg/m3 (31) 31.0
 
May 21, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) 6.4 μg/m3 (27) 27.0
 
May 21, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) 6.4 μg/m3 (27) 27.0
 
May 21, 2022, noon N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 9.0 μg/m3 (9) 6.2 μg/m3 (26) 38.0
 
May 21, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 15.0 μg/m3 (14) 9.4 μg/m3 (40) 40.0
 
May 21, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 16.0 μg/m3 (15) 9.7 μg/m3 (41) 41.0
 
May 21, 2022, 8 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 18.0 μg/m3 (17) 9.5 μg/m3 (40) 40.0
 
May 21, 2022, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 42.0 ppb (39) N/A 14.0 μg/m3 (13) 7.2 μg/m3 (31) 39.0
 
May 21, 2022, 3 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 40.0 ppb (38) N/A 14.0 μg/m3 (13) 7.7 μg/m3 (33) 38.0
 
May 21, 2022, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 40.0 ppb (38) N/A 14.0 μg/m3 (13) 8.3 μg/m3 (35) 38.0
 
May 21, 2022, 1 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 40.0 ppb (38) N/A 14.0 μg/m3 (13) 9.8 μg/m3 (41) 41.0
 
May 21, 2022, midnight N/A N/A N/A N/A N/A 2.0 ppb (3) 40.0 ppb (38) N/A 14.0 μg/m3 (13) 10.4 μg/m3 (44) 44.0
 
May 20, 2022, 11 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 40.0 ppb (38) N/A 13.0 μg/m3 (13) 8.9 μg/m3 (38) 38.0
 
May 20, 2022, 10 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 40.0 ppb (38) N/A 10.0 μg/m3 (10) 6.8 μg/m3 (29) 38.0
 
May 20, 2022, 9 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 40.0 ppb (38) N/A 7.0 μg/m3 (7) 5.3 μg/m3 (23) 38.0
 
May 20, 2022, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 45.0 ppb (42) N/A 7.0 μg/m3 (7) 4.2 μg/m3 (18) 42.0
 
May 20, 2022, 6 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 45.0 ppb (42) N/A 7.0 μg/m3 (7) 3.9 μg/m3 (17) 42.0
 
May 20, 2022, 5 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 45.0 ppb (42) N/A 5.0 μg/m3 (5) 3.5 μg/m3 (15) 42.0
 
May 20, 2022, 4 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 44.0 ppb (41) N/A 5.0 μg/m3 (5) 3.3 μg/m3 (14) 41.0
 
May 20, 2022, 3 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 43.0 ppb (40) N/A 6.0 μg/m3 (6) 3.0 μg/m3 (13) 40.0
 
May 20, 2022, 2 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 42.0 ppb (39) N/A 4.0 μg/m3 (4) 2.6 μg/m3 (11) 39.0
 
May 20, 2022, 1 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 44.0 ppb (41) N/A 4.0 μg/m3 (4) 2.5 μg/m3 (11) 41.0
 
May 20, 2022, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 40.0 ppb (38) N/A 4.0 μg/m3 (4) 2.5 μg/m3 (11) 38.0
 
May 20, 2022, 10 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 43.0 ppb (40) N/A 4.0 μg/m3 (4) 2.9 μg/m3 (13) 40.0
 
May 20, 2022, 9 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 41.0 ppb (38) N/A 8.0 μg/m3 (8) 4.1 μg/m3 (18) 38.0
 
May 20, 2022, 8 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 37.0 ppb (35) N/A 8.0 μg/m3 (8) 4.5 μg/m3 (19) 35.0
 
May 20, 2022, 7 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 39.0 ppb (37) N/A 8.0 μg/m3 (8) 4.8 μg/m3 (20) 37.0
 
May 20, 2022, 6 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 42.0 ppb (39) N/A 9.0 μg/m3 (9) 5.5 μg/m3 (23) 39.0
 
May 20, 2022, 5 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 46.0 ppb (43) N/A 10.0 μg/m3 (10) 5.9 μg/m3 (25) 43.0
 
May 20, 2022, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 48.0 ppb (45) N/A 11.0 μg/m3 (11) 5.9 μg/m3 (25) 45.0
 
May 20, 2022, 3 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 51.0 ppb (48) N/A 10.0 μg/m3 (10) 5.5 μg/m3 (23) 48.0
 
May 20, 2022, 2 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 50.0 ppb (47) N/A 11.0 μg/m3 (11) 5.6 μg/m3 (24) 47.0
 
May 20, 2022, 1 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 50.0 ppb (47) N/A 13.0 μg/m3 (13) 6.4 μg/m3 (27) 47.0
 
May 20, 2022, 1 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 50.0 ppb (47) N/A 13.0 μg/m3 (13) 6.4 μg/m3 (27) 47.0
 
May 20, 2022, midnight N/A N/A N/A N/A N/A 1.0 ppb (2) 50.0 ppb (47) N/A 13.0 μg/m3 (13) 6.6 μg/m3 (28) 47.0
 
May 20, 2022, midnight N/A N/A N/A N/A N/A 1.0 ppb (2) 50.0 ppb (47) N/A 13.0 μg/m3 (13) 6.6 μg/m3 (28) 47.0
 
May 19, 2022, 11 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 50.0 ppb (47) N/A 12.0 μg/m3 (12) 6.0 μg/m3 (25) 47.0
 
May 19, 2022, 10 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 49.0 ppb (46) N/A 10.0 μg/m3 (10) 5.4 μg/m3 (23) 46.0
 
May 19, 2022, 9 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 46.0 ppb (43) N/A 9.0 μg/m3 (9) 4.8 μg/m3 (20) 43.0
 
May 19, 2022, 8 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 45.0 ppb (42) N/A 9.0 μg/m3 (9) 4.9 μg/m3 (21) 42.0
 
May 19, 2022, 7 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 46.0 ppb (43) N/A 10.0 μg/m3 (10) 5.2 μg/m3 (22) 43.0
 
May 19, 2022, 7 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 46.0 ppb (43) N/A 10.0 μg/m3 (10) 5.2 μg/m3 (22) 43.0
 
May 19, 2022, 4 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 42.0 ppb (39) N/A 12.0 μg/m3 (12) 5.3 μg/m3 (23) 39.0
 
May 19, 2022, 2 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 24.0 ppb (23) N/A 17.0 μg/m3 (16) 5.8 μg/m3 (25) 25.0
 
May 19, 2022, 6 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 21.0 ppb (20) N/A 17.0 μg/m3 (16) 6.3 μg/m3 (27) 27.0
 
May 19, 2022, 5 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 26.0 ppb (25) N/A 16.0 μg/m3 (15) 6.1 μg/m3 (26) 26.0
 
May 19, 2022, 4 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 28.0 ppb (26) N/A 12.0 μg/m3 (12) 5.4 μg/m3 (23) 26.0
 
May 19, 2022, 3 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 28.0 ppb (26) N/A 19.0 μg/m3 (18) 6.5 μg/m3 (28) 28.0
 
May 19, 2022, 2 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 22.0 ppb (21) N/A 21.0 μg/m3 (20) 6.5 μg/m3 (28) 28.0
 
May 19, 2022, 1 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 29.0 ppb (27) N/A 14.0 μg/m3 (13) 5.4 μg/m3 (23) 27.0
 
May 18, 2022, 11 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 43.0 ppb (40) N/A 11.0 μg/m3 (11) 4.7 μg/m3 (20) 40.0
 
May 18, 2022, 10 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 49.0 ppb (46) N/A 24.0 μg/m3 (23) 5.7 μg/m3 (24) 46.0
 
May 18, 2022, 9 p.m. N/A N/A N/A N/A N/A 3.0 ppb (5) 50.0 ppb (47) N/A 27.0 μg/m3 (25) 6.6 μg/m3 (28) 47.0
 
May 18, 2022, 8 p.m. N/A N/A N/A N/A N/A 3.0 ppb (5) 49.0 ppb (46) N/A 29.0 μg/m3 (27) 6.7 μg/m3 (28) 46.0
 
May 18, 2022, 7 p.m. N/A N/A N/A N/A N/A 3.0 ppb (5) 50.0 ppb (47) N/A 31.0 μg/m3 (29) 6.1 μg/m3 (26) 47.0
 
May 18, 2022, 5 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 50.0 ppb (47) N/A 23.0 μg/m3 (22) 5.7 μg/m3 (24) 47.0
 
May 18, 2022, 4 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 49.0 ppb (46) N/A 26.0 μg/m3 (25) 5.6 μg/m3 (24) 46.0
 
May 18, 2022, 4 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 49.0 ppb (46) N/A 26.0 μg/m3 (25) 5.6 μg/m3 (24) 46.0
 
May 18, 2022, 3 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 47.0 ppb (44) N/A 24.0 μg/m3 (23) 5.2 μg/m3 (22) 44.0
 
May 18, 2022, 3 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 47.0 ppb (44) N/A 24.0 μg/m3 (23) 5.2 μg/m3 (22) 44.0
 
May 18, 2022, 2 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 44.0 ppb (41) N/A 22.0 μg/m3 (21) 5.3 μg/m3 (23) 41.0
 
May 18, 2022, 2 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 44.0 ppb (41) N/A 22.0 μg/m3 (21) 5.3 μg/m3 (23) 41.0
 
May 18, 2022, 1 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 41.0 ppb (38) N/A 13.0 μg/m3 (13) 4.2 μg/m3 (18) 38.0
 
May 18, 2022, 1 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 41.0 ppb (38) N/A 13.0 μg/m3 (13) 4.2 μg/m3 (18) 38.0
 
May 18, 2022, noon N/A N/A N/A N/A N/A 1.0 ppb (2) 39.0 ppb (37) N/A 13.0 μg/m3 (13) 3.9 μg/m3 (17) 37.0
 
May 18, 2022, noon N/A N/A N/A N/A N/A 1.0 ppb (2) 39.0 ppb (37) N/A 13.0 μg/m3 (13) 3.9 μg/m3 (17) 37.0
 
May 18, 2022, 11 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 39.0 ppb (37) N/A 13.0 μg/m3 (13) 3.8 μg/m3 (16) 37.0
 
May 18, 2022, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 39.0 ppb (37) N/A 12.0 μg/m3 (12) 3.8 μg/m3 (16) 37.0
 
May 18, 2022, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 23.0 ppb (22) N/A 6.0 μg/m3 (6) 1.9 μg/m3 (8) 22.0
 
May 18, 2022, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 26.0 ppb (25) N/A 8.0 μg/m3 (8) 2.8 μg/m3 (12) 25.0
 
May 18, 2022, midnight N/A N/A N/A N/A N/A 1.0 ppb (2) 32.0 ppb (30) N/A 10.0 μg/m3 (10) 3.6 μg/m3 (16) 30.0
 
May 17, 2022, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 34.0 ppb (32) N/A 13.0 μg/m3 (13) 3.9 μg/m3 (17) 32.0
 
May 17, 2022, 10 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 34.0 ppb (32) N/A 21.0 μg/m3 (20) 4.5 μg/m3 (19) 32.0
 
May 17, 2022, 9 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 35.0 ppb (33) N/A 14.0 μg/m3 (13) 3.2 μg/m3 (14) 33.0
 
May 17, 2022, 9 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 35.0 ppb (33) N/A 14.0 μg/m3 (13) 3.2 μg/m3 (14) 33.0
 
May 17, 2022, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 40.0 ppb (38) N/A 13.0 μg/m3 (13) 2.9 μg/m3 (13) 38.0
 
May 17, 2022, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 40.0 ppb (38) N/A 14.0 μg/m3 (13) 3.0 μg/m3 (13) 38.0
 
May 17, 2022, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 40.0 ppb (38) N/A 14.0 μg/m3 (13) 3.0 μg/m3 (13) 38.0