ID: 2023

AQSQID: 330150018

Site Name: Londonderry - Moose Hill

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

Updated: Feb. 27, 2021, 11:32 p.m.

Location: Londonderry (Moosehill School), NH

Reporting: True, Located: True

Current AQI: 31.0

Londonderry (Moosehill School) NH, US: 42.862531, -71.38014

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Feb. 27, 2021, 10 p.m. N/A N/A 8.9 ppb (9) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.26 ppb (4) 9.3 μg/m3 (9) 7.2 μg/m3 (31) 31.0
 
Feb. 27, 2021, 9 p.m. N/A N/A 9.3 ppb (9) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.26 ppb (4) 5.0 μg/m3 (5) 3.8 μg/m3 (16) 29.0
 
Feb. 27, 2021, 8 p.m. N/A N/A 6.4 ppb (7) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.21 ppb (3) 5.9 μg/m3 (6) 4.2 μg/m3 (18) 33.0
 
Feb. 27, 2021, 7 p.m. N/A N/A 6.5 ppb (7) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.22 ppb (3) 8.2 μg/m3 (8) 5.2 μg/m3 (22) 34.0
 
Feb. 27, 2021, 6 p.m. N/A N/A 6.0 ppb (6) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.22 ppb (3) 10.9 μg/m3 (11) 6.0 μg/m3 (25) 35.0
 
Feb. 27, 2021, 5 p.m. N/A N/A 5.4 ppb (6) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.2 ppb (3) 11.0 μg/m3 (11) 5.7 μg/m3 (24) 37.0
 
Feb. 27, 2021, 4 p.m. N/A N/A 5.0 ppb (5) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.19 ppb (3) 8.8 μg/m3 (9) 4.7 μg/m3 (20) 38.0
 
Feb. 27, 2021, 3 p.m. N/A N/A 6.9 ppb (7) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.19 ppb (3) 7.8 μg/m3 (8) 4.6 μg/m3 (20) 37.0
 
Feb. 27, 2021, 2 p.m. N/A N/A 10.4 ppb (10) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.21 ppb (3) 8.1 μg/m3 (8) 5.1 μg/m3 (22) 32.0
 
Feb. 27, 2021, 1 p.m. N/A N/A 9.2 ppb (9) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.21 ppb (3) 9.0 μg/m3 (9) 5.7 μg/m3 (24) 33.0
 
Feb. 27, 2021, noon N/A N/A 10.2 ppb (10) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.21 ppb (3) 10.6 μg/m3 (10) 6.9 μg/m3 (29) 32.0
 
Feb. 27, 2021, 11 a.m. N/A N/A 10.7 ppb (11) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.22 ppb (3) 12.3 μg/m3 (12) 8.6 μg/m3 (36) 36.0
 
Feb. 27, 2021, 10 a.m. N/A N/A 11.0 ppb (11) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.24 ppb (3) 13.6 μg/m3 (13) 9.8 μg/m3 (41) 41.0
 
Feb. 27, 2021, 9 a.m. N/A N/A 11.0 ppb (11) N/A N/A 0.0 ppb (0) N/A 0.26 ppb (4) 15.3 μg/m3 (15) 10.7 μg/m3 (45) 45.0
 
Feb. 27, 2021, 8 a.m. N/A N/A 11.5 ppb (11) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.27 ppb (4) 16.7 μg/m3 (16) 11.4 μg/m3 (48) 48.0
 
Feb. 27, 2021, 7 a.m. N/A N/A 11.9 ppb (12) N/A N/A 0.0 ppb (0) 25.0 ppb (24) N/A 15.0 μg/m3 (14) 10.5 μg/m3 (44) 44.0
 
Feb. 27, 2021, 6 a.m. N/A N/A 9.9 ppb (10) N/A N/A N/A 28.0 ppb (26) 0.26 ppb (4) 14.4 μg/m3 (14) 9.0 μg/m3 (38) 38.0
 
Feb. 27, 2021, 5 a.m. N/A N/A 8.2 ppb (8) N/A N/A N/A 31.0 ppb (29) 0.24 ppb (3) 13.2 μg/m3 (13) 7.9 μg/m3 (33) 33.0
 
Feb. 27, 2021, 4 a.m. N/A N/A 7.8 ppb (8) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.23 ppb (3) 13.0 μg/m3 (13) 7.3 μg/m3 (31) 31.0
 
Feb. 27, 2021, 3 a.m. N/A N/A 7.0 ppb (7) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.23 ppb (3) 11.2 μg/m3 (11) 6.4 μg/m3 (27) 34.0
 
Feb. 27, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.22 ppb (3) 10.9 μg/m3 (11) 6.0 μg/m3 (25) 36.0
 
Feb. 27, 2021, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.21 ppb (3) 13.3 μg/m3 (13) 6.4 μg/m3 (27) 37.0
 
Feb. 27, 2021, midnight N/A N/A 7.6 ppb (8) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.24 ppb (3) 13.6 μg/m3 (13) 5.3 μg/m3 (23) 34.0
 
Feb. 26, 2021, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.21 ppb (3) 11.9 μg/m3 (12) 3.9 μg/m3 (17) 35.0
 
Feb. 26, 2021, 10 p.m. N/A N/A 2.0 ppb (2) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.18 ppb (3) 7.8 μg/m3 (8) 3.4 μg/m3 (15) 39.0
 
Feb. 26, 2021, 9 p.m. N/A N/A 1.9 ppb (2) N/A N/A 0.0 ppb (0) 46.0 ppb (43) 0.17 ppb (3) 6.3 μg/m3 (6) 3.1 μg/m3 (13) 43.0
 
Feb. 26, 2021, 8 p.m. N/A N/A 1.9 ppb (2) N/A N/A 0.0 ppb (0) 46.0 ppb (43) 0.17 ppb (3) 6.2 μg/m3 (6) 3.1 μg/m3 (13) 43.0
 
Feb. 26, 2021, 7 p.m. N/A N/A 2.0 ppb (2) N/A N/A 0.0 ppb (0) 45.0 ppb (42) 0.17 ppb (3) 6.8 μg/m3 (7) 3.4 μg/m3 (15) 42.0
 
Feb. 26, 2021, 6 p.m. N/A N/A 2.1 ppb (2) N/A N/A 0.0 ppb (0) 45.0 ppb (42) 0.17 ppb (3) 5.7 μg/m3 (6) 3.3 μg/m3 (14) 42.0
 
Feb. 26, 2021, 5 p.m. N/A N/A 2.2 ppb (3) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.17 ppb (3) 6.3 μg/m3 (6) 3.3 μg/m3 (14) 41.0
 
Feb. 26, 2021, 4 p.m. N/A N/A 2.3 ppb (3) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.17 ppb (3) 6.3 μg/m3 (6) 3.3 μg/m3 (14) 40.0
 
Feb. 26, 2021, 3 p.m. N/A N/A 2.5 ppb (3) N/A N/A 1.0 ppb (2) 42.0 ppb (39) 0.17 ppb (3) 6.8 μg/m3 (7) 3.3 μg/m3 (14) 39.0
 
Feb. 26, 2021, 2 p.m. N/A N/A 2.9 ppb (3) N/A N/A 1.0 ppb (2) 42.0 ppb (39) 0.17 ppb (3) 7.2 μg/m3 (7) 3.5 μg/m3 (15) 39.0
 
Feb. 26, 2021, 1 p.m. N/A N/A 4.3 ppb (5) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.17 ppb (3) 8.3 μg/m3 (8) 3.7 μg/m3 (16) 38.0
 
Feb. 26, 2021, noon N/A N/A 5.1 ppb (5) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.19 ppb (3) 8.2 μg/m3 (8) 3.9 μg/m3 (17) 35.0
 
Feb. 26, 2021, 11 a.m. N/A N/A 4.5 ppb (5) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.19 ppb (3) 7.2 μg/m3 (7) 3.8 μg/m3 (16) 35.0
 
Feb. 26, 2021, 10 a.m. N/A N/A 4.8 ppb (5) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.18 ppb (3) 7.9 μg/m3 (8) 4.3 μg/m3 (18) 34.0
 
Feb. 26, 2021, 9 a.m. N/A N/A 6.3 ppb (6) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.19 ppb (3) 8.7 μg/m3 (9) 4.7 μg/m3 (20) 31.0
 
Feb. 26, 2021, 8 a.m. N/A N/A 6.7 ppb (7) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.2 ppb (3) 10.0 μg/m3 (10) 5.8 μg/m3 (25) 29.0
 
Feb. 26, 2021, 7 a.m. N/A N/A 6.2 ppb (6) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.21 ppb (3) 11.2 μg/m3 (11) 6.8 μg/m3 (29) 29.0
 
Feb. 26, 2021, 6 a.m. N/A N/A 4.5 ppb (5) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.19 ppb (3) 7.3 μg/m3 (7) 4.2 μg/m3 (18) 28.0
 
Feb. 26, 2021, 5 a.m. N/A N/A 4.1 ppb (4) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.19 ppb (3) 7.3 μg/m3 (7) 3.9 μg/m3 (17) 31.0
 
Feb. 26, 2021, 4 a.m. N/A N/A 2.5 ppb (3) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.18 ppb (3) 7.9 μg/m3 (8) 3.8 μg/m3 (16) 32.0
 
Feb. 26, 2021, 3 a.m. N/A N/A 1.7 ppb (2) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.19 ppb (3) 6.6 μg/m3 (7) 3.6 μg/m3 (16) 35.0
 
Feb. 26, 2021, 2 a.m. N/A N/A 1.4 ppb (2) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.17 ppb (3) 5.9 μg/m3 (6) 2.9 μg/m3 (13) 39.0
 
Feb. 26, 2021, 1 a.m. N/A N/A 1.4 ppb (2) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.17 ppb (3) 5.8 μg/m3 (6) 2.8 μg/m3 (12) 39.0
 
Feb. 26, 2021, midnight N/A N/A 1.3 ppb (2) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.17 ppb (3) 6.2 μg/m3 (6) 2.7 μg/m3 (12) 40.0
 
Feb. 25, 2021, 11 p.m. N/A N/A 1.3 ppb (2) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.16 ppb (3) 5.7 μg/m3 (6) 2.2 μg/m3 (10) 41.0
 
Feb. 25, 2021, 10 p.m. N/A N/A 1.2 ppb (2) N/A N/A 0.0 ppb (0) 45.0 ppb (42) 0.16 ppb (3) 4.3 μg/m3 (4) 1.8 μg/m3 (8) 42.0
 
Feb. 25, 2021, 9 p.m. N/A N/A 1.2 ppb (2) N/A N/A 0.0 ppb (0) 45.0 ppb (42) 0.17 ppb (3) 5.2 μg/m3 (5) 1.6 μg/m3 (7) 42.0
 
Feb. 25, 2021, 8 p.m. N/A N/A 1.3 ppb (2) N/A N/A 0.0 ppb (0) 45.0 ppb (42) 0.16 ppb (3) 3.3 μg/m3 (4) 1.3 μg/m3 (6) 42.0
 
Feb. 25, 2021, 7 p.m. N/A N/A 1.3 ppb (2) N/A N/A 0.0 ppb (0) 45.0 ppb (42) 0.16 ppb (3) 3.0 μg/m3 (3) 1.2 μg/m3 (5) 42.0
 
Feb. 25, 2021, 6 p.m. N/A N/A 1.4 ppb (2) N/A N/A 0.0 ppb (0) 45.0 ppb (42) 0.16 ppb (3) 3.6 μg/m3 (4) 1.2 μg/m3 (5) 42.0
 
Feb. 25, 2021, 5 p.m. N/A N/A 1.5 ppb (2) N/A N/A 0.0 ppb (0) 45.0 ppb (42) 0.16 ppb (3) 4.0 μg/m3 (4) 1.1 μg/m3 (5) 42.0
 
Feb. 25, 2021, 4 p.m. N/A N/A 1.6 ppb (2) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.16 ppb (3) 3.1 μg/m3 (3) 1.1 μg/m3 (5) 41.0
 
Feb. 25, 2021, 3 p.m. N/A N/A 1.8 ppb (2) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.16 ppb (3) 2.9 μg/m3 (3) 1.1 μg/m3 (5) 40.0
 
Feb. 25, 2021, 2 p.m. N/A N/A 2.1 ppb (2) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.17 ppb (3) 3.1 μg/m3 (3) 0.9 μg/m3 (4) 40.0
 
Feb. 25, 2021, 1 p.m. N/A N/A 2.4 ppb (3) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.17 ppb (3) 3.3 μg/m3 (4) 0.8 μg/m3 (4) 39.0
 
Feb. 25, 2021, noon N/A N/A 2.7 ppb (3) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.18 ppb (3) 3.2 μg/m3 (3) 0.8 μg/m3 (4) 37.0
 
Feb. 25, 2021, 11 a.m. N/A N/A 3.0 ppb (3) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.18 ppb (3) 4.1 μg/m3 (4) 1.7 μg/m3 (8) 35.0
 
Feb. 25, 2021, 10 a.m. N/A N/A 3.3 ppb (4) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.2 ppb (3) 6.5 μg/m3 (7) 3.7 μg/m3 (16) 38.0
 
Feb. 25, 2021, 9 a.m. N/A N/A 3.5 ppb (4) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.19 ppb (3) 9.7 μg/m3 (9) 5.0 μg/m3 (21) 41.0
 
Feb. 25, 2021, 8 a.m. N/A N/A 3.8 ppb (4) N/A N/A 0.0 ppb (0) 48.0 ppb (45) 0.18 ppb (3) 10.7 μg/m3 (10) 5.6 μg/m3 (24) 45.0
 
Feb. 25, 2021, 7 a.m. N/A N/A 4.0 ppb (4) N/A N/A 1.0 ppb (2) 46.0 ppb (43) 0.19 ppb (3) 9.1 μg/m3 (9) 4.7 μg/m3 (20) 43.0
 
Feb. 25, 2021, 6 a.m. N/A N/A 3.9 ppb (4) N/A N/A 1.0 ppb (2) 46.0 ppb (43) 0.2 ppb (3) 9.1 μg/m3 (9) 4.4 μg/m3 (19) 43.0
 
Feb. 25, 2021, 5 a.m. N/A N/A 3.8 ppb (4) N/A N/A 0.0 ppb (0) 47.0 ppb (44) 0.19 ppb (3) 9.4 μg/m3 (9) 4.4 μg/m3 (19) 44.0
 
Feb. 25, 2021, 4 a.m. N/A N/A 3.7 ppb (4) N/A N/A 1.0 ppb (2) 47.0 ppb (44) 0.19 ppb (3) 8.9 μg/m3 (9) 4.2 μg/m3 (18) 44.0
 
Feb. 25, 2021, 3 a.m. N/A N/A 3.7 ppb (4) N/A N/A 1.0 ppb (2) 47.0 ppb (44) 0.19 ppb (3) 8.5 μg/m3 (8) 4.0 μg/m3 (17) 44.0
 
Feb. 25, 2021, 2 a.m. N/A N/A 4.8 ppb (5) N/A N/A 1.0 ppb (2) 47.0 ppb (44) 0.19 ppb (3) 9.2 μg/m3 (9) 4.3 μg/m3 (18) 44.0
 
Feb. 25, 2021, 1 a.m. N/A N/A 6.0 ppb (6) N/A N/A 1.0 ppb (2) 46.0 ppb (43) 0.2 ppb (3) 10.2 μg/m3 (10) 5.1 μg/m3 (22) 43.0
 
Feb. 25, 2021, midnight N/A N/A 5.1 ppb (5) N/A N/A 1.0 ppb (2) 44.0 ppb (41) 0.22 ppb (3) 9.6 μg/m3 (9) 4.8 μg/m3 (20) 41.0
 
Feb. 24, 2021, 11 p.m. N/A N/A 3.1 ppb (3) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.21 ppb (3) 9.5 μg/m3 (9) 3.9 μg/m3 (17) 41.0
 
Feb. 24, 2021, 10 p.m. N/A N/A 2.6 ppb (3) N/A N/A 0.0 ppb (0) 45.0 ppb (42) 0.19 ppb (3) 8.5 μg/m3 (8) 3.5 μg/m3 (15) 42.0
 
Feb. 24, 2021, 9 p.m. N/A N/A 2.2 ppb (3) N/A N/A 0.0 ppb (0) 47.0 ppb (44) 0.18 ppb (3) 6.9 μg/m3 (7) 3.1 μg/m3 (13) 44.0
 
Feb. 24, 2021, 8 p.m. N/A N/A 2.1 ppb (2) N/A N/A 0.0 ppb (0) 47.0 ppb (44) 0.17 ppb (3) 6.2 μg/m3 (6) 2.7 μg/m3 (12) 44.0
 
Feb. 24, 2021, 7 p.m. N/A N/A 2.0 ppb (2) N/A N/A 0.0 ppb (0) 46.0 ppb (43) 0.18 ppb (3) 6.1 μg/m3 (6) 2.7 μg/m3 (12) 43.0
 
Feb. 24, 2021, 6 p.m. N/A N/A 2.0 ppb (2) N/A N/A 0.0 ppb (0) 45.0 ppb (42) 0.18 ppb (3) 4.8 μg/m3 (5) 2.5 μg/m3 (11) 42.0
 
Feb. 24, 2021, 5 p.m. N/A N/A 2.1 ppb (2) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.18 ppb (3) 4.9 μg/m3 (5) 2.6 μg/m3 (11) 41.0
 
Feb. 24, 2021, 4 p.m. N/A N/A 2.2 ppb (3) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.17 ppb (3) 4.4 μg/m3 (5) 2.3 μg/m3 (10) 40.0
 
Feb. 24, 2021, 3 p.m. N/A N/A 2.4 ppb (3) N/A N/A 0.0 ppb (0) 41.0 ppb (38) 0.17 ppb (3) 4.0 μg/m3 (4) 2.4 μg/m3 (10) 38.0
 
Feb. 24, 2021, 2 p.m. N/A N/A 3.3 ppb (4) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.18 ppb (3) 5.2 μg/m3 (5) 3.1 μg/m3 (13) 38.0
 
Feb. 24, 2021, 1 p.m. N/A N/A 3.6 ppb (4) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.19 ppb (3) 5.2 μg/m3 (5) 3.5 μg/m3 (15) 35.0
 
Feb. 24, 2021, noon N/A N/A 3.0 ppb (3) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.2 ppb (3) 4.5 μg/m3 (5) 3.3 μg/m3 (14) 33.0
 
Feb. 24, 2021, 11 a.m. N/A N/A 2.5 ppb (3) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.18 ppb (3) 3.9 μg/m3 (4) 2.9 μg/m3 (13) 35.0
 
Feb. 24, 2021, 10 a.m. N/A N/A 2.7 ppb (3) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.18 ppb (3) 3.7 μg/m3 (4) 2.8 μg/m3 (12) 36.0
 
Feb. 24, 2021, 9 a.m. N/A N/A 3.0 ppb (3) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.19 ppb (3) 4.6 μg/m3 (5) 3.2 μg/m3 (14) 36.0
 
Feb. 24, 2021, 8 a.m. N/A N/A 3.4 ppb (4) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.2 ppb (3) 4.9 μg/m3 (5) 3.7 μg/m3 (16) 36.0
 
Feb. 24, 2021, 7 a.m. N/A N/A 3.6 ppb (4) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.21 ppb (3) 6.1 μg/m3 (6) 4.5 μg/m3 (19) 35.0
 
Feb. 24, 2021, 6 a.m. N/A N/A 3.6 ppb (4) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.21 ppb (3) 7.1 μg/m3 (7) 5.0 μg/m3 (21) 37.0
 
Feb. 24, 2021, 5 a.m. N/A N/A 3.8 ppb (4) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.22 ppb (3) 8.4 μg/m3 (8) 6.1 μg/m3 (26) 37.0
 
Feb. 24, 2021, 4 a.m. N/A N/A 4.0 ppb (4) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.22 ppb (3) 9.7 μg/m3 (9) 7.4 μg/m3 (31) 36.0
 
Feb. 24, 2021, 3 a.m. N/A N/A 4.2 ppb (4) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.22 ppb (3) 10.3 μg/m3 (10) 8.0 μg/m3 (34) 38.0
 
Feb. 24, 2021, 2 a.m. N/A N/A 4.3 ppb (5) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.22 ppb (3) 10.2 μg/m3 (10) 8.1 μg/m3 (34) 37.0
 
Feb. 24, 2021, 1 a.m. N/A N/A 4.2 ppb (4) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.22 ppb (3) 9.6 μg/m3 (9) 7.5 μg/m3 (32) 39.0
 
Feb. 24, 2021, midnight N/A N/A 4.0 ppb (4) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.21 ppb (3) 9.7 μg/m3 (9) 7.3 μg/m3 (31) 41.0
 
Feb. 23, 2021, 11 p.m. N/A N/A 4.0 ppb (4) N/A N/A 0.0 ppb (0) 46.0 ppb (43) 0.21 ppb (3) 9.8 μg/m3 (10) 7.4 μg/m3 (31) 43.0
 
Feb. 23, 2021, 10 p.m. N/A N/A 3.9 ppb (4) N/A N/A 0.0 ppb (0) 48.0 ppb (45) 0.22 ppb (3) 10.2 μg/m3 (10) 7.4 μg/m3 (31) 45.0
 
Feb. 23, 2021, 9 p.m. N/A N/A 3.7 ppb (4) N/A N/A 0.0 ppb (0) 49.0 ppb (46) 0.21 ppb (3) 10.3 μg/m3 (10) 7.4 μg/m3 (31) 46.0
 
Feb. 23, 2021, 8 p.m. N/A N/A 3.6 ppb (4) N/A N/A 0.0 ppb (0) 50.0 ppb (47) 0.21 ppb (3) 10.2 μg/m3 (10) 7.6 μg/m3 (32) 47.0
 
Feb. 23, 2021, 7 p.m. N/A N/A 3.5 ppb (4) N/A N/A 0.0 ppb (0) 49.0 ppb (46) 0.2 ppb (3) 10.4 μg/m3 (10) 7.9 μg/m3 (33) 46.0
 
Feb. 23, 2021, 6 p.m. N/A N/A 3.6 ppb (4) N/A N/A 0.0 ppb (0) 49.0 ppb (46) 0.2 ppb (3) 10.4 μg/m3 (10) 8.0 μg/m3 (34) 46.0
 
Feb. 23, 2021, 5 p.m. N/A N/A 3.8 ppb (4) N/A N/A 0.0 ppb (0) 50.0 ppb (47) 0.21 ppb (3) 10.1 μg/m3 (10) 7.1 μg/m3 (30) 47.0
 
Feb. 23, 2021, 4 p.m. N/A N/A 4.5 ppb (5) N/A N/A 0.0 ppb (0) 50.0 ppb (47) 0.21 ppb (3) 10.9 μg/m3 (11) 8.4 μg/m3 (36) 47.0
 
Feb. 23, 2021, 3 p.m. N/A N/A 5.7 ppb (6) N/A N/A 0.0 ppb (0) 48.0 ppb (45) 0.22 ppb (3) 12.0 μg/m3 (12) 9.6 μg/m3 (40) 45.0
 
Feb. 23, 2021, 2 p.m. N/A N/A 6.0 ppb (6) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.23 ppb (3) 11.6 μg/m3 (11) 9.2 μg/m3 (39) 40.0
 
Feb. 23, 2021, 1 p.m. N/A N/A 5.8 ppb (6) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.24 ppb (3) 10.7 μg/m3 (10) 8.3 μg/m3 (35) 38.0
 
Feb. 23, 2021, noon N/A N/A 5.1 ppb (5) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.23 ppb (3) 9.4 μg/m3 (9) 7.2 μg/m3 (31) 37.0
 
Feb. 23, 2021, 11 a.m. N/A N/A 4.8 ppb (5) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.23 ppb (3) 9.1 μg/m3 (9) 6.9 μg/m3 (29) 37.0
 
Feb. 23, 2021, 10 a.m. N/A N/A 7.4 ppb (7) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.24 ppb (3) 8.8 μg/m3 (9) 6.7 μg/m3 (28) 30.0
 
Feb. 23, 2021, 9 a.m. N/A N/A 3.7 ppb (4) N/A N/A 0.0 ppb (0) N/A 0.23 ppb (3) 8.1 μg/m3 (8) 6.1 μg/m3 (26) 26.0
 
Feb. 23, 2021, 8 a.m. N/A N/A 3.5 ppb (4) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.22 ppb (3) 8.0 μg/m3 (8) 5.9 μg/m3 (25) 35.0
 
Feb. 23, 2021, 7 a.m. N/A N/A 3.4 ppb (4) N/A N/A 0.0 ppb (0) 38.0 ppb (36) N/A 6.8 μg/m3 (7) 4.9 μg/m3 (21) 36.0
 
Feb. 23, 2021, 6 a.m. N/A N/A 3.6 ppb (4) N/A N/A N/A 39.0 ppb (37) 0.21 ppb (3) 6.6 μg/m3 (7) 4.6 μg/m3 (20) 37.0
 
Feb. 23, 2021, 5 a.m. N/A N/A 5.2 ppb (5) N/A N/A N/A 35.0 ppb (33) 0.22 ppb (3) 8.7 μg/m3 (9) 6.0 μg/m3 (25) 33.0
 
Feb. 23, 2021, 4 a.m. N/A N/A 6.0 ppb (6) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.24 ppb (3) 9.7 μg/m3 (9) 6.7 μg/m3 (28) 28.0
 
Feb. 23, 2021, 3 a.m. N/A N/A 9.4 ppb (9) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.25 ppb (3) 8.2 μg/m3 (8) 5.9 μg/m3 (25) 26.0
 
Feb. 23, 2021, 2 a.m. N/A N/A 8.3 ppb (8) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.25 ppb (3) 8.7 μg/m3 (9) 6.4 μg/m3 (27) 27.0
 
Feb. 23, 2021, 1 a.m. N/A N/A 5.3 ppb (5) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.23 ppb (3) 7.1 μg/m3 (7) 5.1 μg/m3 (22) 26.0
 
Feb. 23, 2021, midnight N/A N/A 5.0 ppb (5) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.21 ppb (3) 5.2 μg/m3 (5) 3.9 μg/m3 (17) 32.0
 
Feb. 22, 2021, 11 p.m. N/A N/A 5.4 ppb (6) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.21 ppb (3) 7.1 μg/m3 (7) 4.7 μg/m3 (20) 36.0
 
Feb. 22, 2021, 10 p.m. N/A N/A 6.1 ppb (6) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.21 ppb (3) 11.1 μg/m3 (11) 7.4 μg/m3 (31) 38.0
 
Feb. 22, 2021, 9 p.m. N/A N/A 6.3 ppb (6) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.21 ppb (3) 12.0 μg/m3 (12) 8.1 μg/m3 (34) 38.0
 
Feb. 22, 2021, 8 p.m. N/A N/A 4.9 ppb (5) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.21 ppb (3) 10.9 μg/m3 (11) 7.0 μg/m3 (30) 39.0
 
Feb. 22, 2021, 7 p.m. N/A N/A 4.4 ppb (5) N/A N/A 0.0 ppb (0) 46.0 ppb (43) 0.2 ppb (3) 11.6 μg/m3 (11) 7.0 μg/m3 (30) 43.0
 
Feb. 22, 2021, 6 p.m. N/A N/A 5.7 ppb (6) N/A N/A 0.0 ppb (0) 46.0 ppb (43) 0.2 ppb (3) 14.8 μg/m3 (14) 9.0 μg/m3 (38) 43.0
 
Feb. 22, 2021, 5 p.m. N/A N/A 10.7 ppb (11) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.24 ppb (3) 15.5 μg/m3 (15) 9.9 μg/m3 (42) 42.0
 
Feb. 22, 2021, 4 p.m. N/A N/A 12.9 ppb (13) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.25 ppb (3) 16.6 μg/m3 (16) 9.7 μg/m3 (41) 41.0
 
Feb. 22, 2021, 3 p.m. N/A N/A 18.7 ppb (18) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.28 ppb (4) 17.7 μg/m3 (17) 9.8 μg/m3 (41) 41.0
 
Feb. 22, 2021, 2 p.m. N/A N/A 21.6 ppb (21) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.31 ppb (4) 20.7 μg/m3 (20) 10.9 μg/m3 (46) 46.0
 
Feb. 22, 2021, 1 p.m. N/A N/A 23.8 ppb (23) N/A N/A 0.0 ppb (0) 21.0 ppb (20) 0.33 ppb (4) 21.0 μg/m3 (20) 11.3 μg/m3 (48) 48.0
 
Feb. 22, 2021, noon N/A N/A 22.6 ppb (22) N/A N/A 0.0 ppb (0) 17.0 ppb (16) 0.34 ppb (4) 19.8 μg/m3 (19) 12.9 μg/m3 (53) 53.0
 
Feb. 22, 2021, 11 a.m. N/A N/A 19.6 ppb (19) N/A N/A 0.0 ppb (0) 13.0 ppb (13) 0.34 ppb (4) 25.8 μg/m3 (24) 16.7 μg/m3 (61) 61.0
 
Feb. 22, 2021, 10 a.m. N/A N/A 18.4 ppb (18) N/A N/A 0.0 ppb (0) 12.0 ppb (12) 0.34 ppb (4) 30.9 μg/m3 (29) 21.2 μg/m3 (71) 71.0
 
Feb. 22, 2021, 9 a.m. N/A N/A 13.1 ppb (13) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.32 ppb (4) 22.4 μg/m3 (21) 15.6 μg/m3 (59) 59.0
 
Feb. 22, 2021, 8 a.m. N/A N/A 10.7 ppb (11) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.27 ppb (4) 13.8 μg/m3 (13) 9.4 μg/m3 (40) 40.0
 
Feb. 22, 2021, 7 a.m. N/A N/A 9.4 ppb (9) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.25 ppb (3) 11.5 μg/m3 (11) 7.6 μg/m3 (32) 32.0
 
Feb. 22, 2021, 6 a.m. N/A N/A 8.4 ppb (8) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.25 ppb (3) 12.3 μg/m3 (12) 8.0 μg/m3 (34) 34.0
 
Feb. 22, 2021, 5 a.m. N/A N/A 8.2 ppb (8) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.25 ppb (3) 15.9 μg/m3 (15) 11.2 μg/m3 (47) 47.0
 
Feb. 22, 2021, 4 a.m. N/A N/A 6.9 ppb (7) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.29 ppb (4) 16.8 μg/m3 (16) 12.8 μg/m3 (53) 53.0
 
Feb. 22, 2021, 3 a.m. N/A N/A 7.4 ppb (7) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.26 ppb (4) 14.3 μg/m3 (14) 9.2 μg/m3 (39) 39.0
 
Feb. 22, 2021, 2 a.m. N/A N/A 7.1 ppb (7) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.23 ppb (3) 12.5 μg/m3 (12) 7.4 μg/m3 (31) 31.0
 
Feb. 22, 2021, 1 a.m. N/A N/A 5.2 ppb (5) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.21 ppb (3) 12.1 μg/m3 (12) 6.8 μg/m3 (29) 35.0
 
Feb. 22, 2021, midnight N/A N/A 4.6 ppb (5) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.21 ppb (3) 12.7 μg/m3 (12) 5.9 μg/m3 (25) 34.0
 
Feb. 21, 2021, 11 p.m. N/A N/A 2.0 ppb (2) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.18 ppb (3) 9.7 μg/m3 (9) 5.0 μg/m3 (21) 38.0
 
Feb. 21, 2021, 10 p.m. N/A N/A 1.6 ppb (2) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.18 ppb (3) 7.0 μg/m3 (7) 3.2 μg/m3 (14) 40.0
 
Feb. 21, 2021, 9 p.m. N/A N/A 1.5 ppb (2) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.17 ppb (3) 5.8 μg/m3 (6) 2.8 μg/m3 (12) 41.0
 
Feb. 21, 2021, 8 p.m. N/A N/A 1.6 ppb (2) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.17 ppb (3) 5.1 μg/m3 (5) 2.8 μg/m3 (12) 41.0
 
Feb. 21, 2021, 7 p.m. N/A N/A 1.6 ppb (2) N/A N/A 0.0 ppb (0) 44.0 ppb (41) N/A 5.3 μg/m3 (5) 2.4 μg/m3 (10) 41.0
 
Feb. 21, 2021, 6 p.m. N/A N/A 1.7 ppb (2) N/A N/A N/A 43.0 ppb (40) 0.17 ppb (3) 4.9 μg/m3 (5) 2.5 μg/m3 (11) 40.0
 
Feb. 21, 2021, 5 p.m. N/A N/A 1.8 ppb (2) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.17 ppb (3) 6.6 μg/m3 (7) 2.9 μg/m3 (13) 40.0
 
Feb. 21, 2021, 4 p.m. N/A N/A 1.9 ppb (2) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.17 ppb (3) 7.5 μg/m3 (7) 3.1 μg/m3 (13) 39.0
 
Feb. 21, 2021, 3 p.m. N/A N/A 2.0 ppb (2) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.17 ppb (3) 7.2 μg/m3 (7) 3.3 μg/m3 (14) 39.0
 
Feb. 21, 2021, 2 p.m. N/A N/A 2.8 ppb (3) N/A N/A 0.0 ppb (0) N/A 0.17 ppb (3) 7.7 μg/m3 (8) 3.8 μg/m3 (16) 16.0
 
Feb. 21, 2021, 1 p.m. N/A N/A 4.0 ppb (4) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.19 ppb (3) 7.6 μg/m3 (8) 4.5 μg/m3 (19) 36.0
 
Feb. 21, 2021, noon N/A N/A 3.9 ppb (4) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.19 ppb (3) 7.6 μg/m3 (8) 4.7 μg/m3 (20) 35.0
 
Feb. 21, 2021, 11 a.m. N/A N/A 3.7 ppb (4) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.2 ppb (3) 7.9 μg/m3 (8) 4.7 μg/m3 (20) 35.0
 
Feb. 21, 2021, 10 a.m. N/A N/A 3.4 ppb (4) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.19 ppb (3) 7.1 μg/m3 (7) 4.4 μg/m3 (19) 35.0
 
Feb. 21, 2021, 9 a.m. N/A N/A 3.3 ppb (4) N/A N/A N/A 39.0 ppb (37) 0.19 ppb (3) 7.5 μg/m3 (7) 4.5 μg/m3 (19) 37.0
 
Feb. 21, 2021, 8 a.m. N/A N/A 3.2 ppb (4) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.18 ppb (3) 7.6 μg/m3 (8) 4.6 μg/m3 (20) 37.0
 
Feb. 21, 2021, 7 a.m. N/A N/A 3.0 ppb (3) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.18 ppb (3) 7.4 μg/m3 (7) 4.6 μg/m3 (20) 38.0
 
Feb. 21, 2021, 6 a.m. N/A N/A 2.7 ppb (3) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.18 ppb (3) 7.5 μg/m3 (7) 4.5 μg/m3 (19) 38.0
 
Feb. 21, 2021, 5 a.m. N/A N/A 2.4 ppb (3) N/A N/A 0.0 ppb (0) 41.0 ppb (38) 0.18 ppb (3) 6.8 μg/m3 (7) 4.2 μg/m3 (18) 38.0
 
Feb. 21, 2021, 4 a.m. N/A N/A 2.3 ppb (3) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.18 ppb (3) 6.4 μg/m3 (6) 3.9 μg/m3 (17) 39.0
 
Feb. 21, 2021, 3 a.m. N/A N/A 2.2 ppb (3) N/A N/A N/A 42.0 ppb (39) 0.17 ppb (3) 6.7 μg/m3 (7) 3.8 μg/m3 (16) 39.0
 
Feb. 21, 2021, 2 a.m. N/A N/A 2.3 ppb (3) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.17 ppb (3) 6.0 μg/m3 (6) 3.6 μg/m3 (16) 39.0
 
Feb. 21, 2021, 1 a.m. N/A N/A 2.3 ppb (3) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.17 ppb (3) 6.6 μg/m3 (7) 3.5 μg/m3 (15) 39.0
 
Feb. 21, 2021, midnight N/A N/A 2.3 ppb (3) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.18 ppb (3) 7.6 μg/m3 (8) 3.9 μg/m3 (17) 39.0
 
Feb. 20, 2021, 11 p.m. N/A N/A 2.1 ppb (2) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.18 ppb (3) 7.5 μg/m3 (7) 3.9 μg/m3 (17) 39.0