ID: 2023

AQSQID: 330150018

Site Name: Londonderry - Moose Hill

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

Updated: Oct. 24, 2021, 8:59 a.m.

Location: Londonderry (Moosehill School), NH

Reporting: True, Located: True

Current AQI: 25.0

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
Oct. 24, 2021, 7 a.m. N/A N/A 1.7 ppb (2) N/A N/A 0.0 ppb (0) 7.0 ppb (7) 0.17 ppb (3) 9.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
Oct. 24, 2021, 6 a.m. N/A N/A 1.6 ppb (2) N/A N/A 0.0 ppb (0) 7.0 ppb (7) 0.15 ppb (2) 9.0 μg/m3 (9) 5.7 μg/m3 (24) 24.0
 
Oct. 24, 2021, 5 a.m. N/A N/A 1.6 ppb (2) N/A N/A 0.0 ppb (0) 8.0 ppb (8) 0.17 ppb (3) 9.0 μg/m3 (9) 5.6 μg/m3 (24) 24.0
 
Oct. 24, 2021, 4 a.m. N/A N/A 1.5 ppb (2) N/A N/A 0.0 ppb (0) 10.0 ppb (10) 0.17 ppb (3) 9.0 μg/m3 (9) 5.6 μg/m3 (24) 24.0
 
Oct. 24, 2021, 3 a.m. N/A N/A 1.4 ppb (2) N/A N/A 0.0 ppb (0) 12.0 ppb (12) 0.17 ppb (3) 9.0 μg/m3 (9) 5.4 μg/m3 (23) 23.0
 
Oct. 24, 2021, 2 a.m. N/A N/A 1.2 ppb (2) N/A N/A 0.0 ppb (0) 18.0 ppb (17) 0.16 ppb (3) 8.0 μg/m3 (8) 5.1 μg/m3 (22) 22.0
 
Oct. 24, 2021, 1 a.m. N/A N/A 1.1 ppb (2) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.16 ppb (3) 8.0 μg/m3 (8) 4.8 μg/m3 (20) 20.0
 
Oct. 24, 2021, midnight N/A N/A 1.0 ppb (1) N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.12 ppb (2) 7.0 μg/m3 (7) 4.5 μg/m3 (19) 22.0
 
Oct. 23, 2021, 11 p.m. N/A N/A 1.0 ppb (1) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.15 ppb (2) 7.0 μg/m3 (7) 4.3 μg/m3 (18) 23.0
 
Oct. 23, 2021, 10 p.m. N/A N/A 0.9 ppb (1) N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.17 ppb (3) 7.0 μg/m3 (7) 3.8 μg/m3 (16) 22.0
 
Oct. 23, 2021, 9 p.m. N/A N/A 0.8 ppb (1) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.15 ppb (2) 6.0 μg/m3 (6) 3.0 μg/m3 (13) 24.0
 
Oct. 23, 2021, 8 p.m. N/A N/A 0.8 ppb (1) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.14 ppb (2) 4.0 μg/m3 (4) 2.6 μg/m3 (11) 25.0
 
Oct. 23, 2021, 7 p.m. N/A N/A 0.9 ppb (1) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.13 ppb (2) 4.0 μg/m3 (4) 2.4 μg/m3 (10) 25.0
 
Oct. 23, 2021, 6 p.m. N/A N/A 1.0 ppb (1) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.11 ppb (2) 4.0 μg/m3 (4) 2.6 μg/m3 (11) 25.0
 
Oct. 23, 2021, 5 p.m. N/A N/A 1.1 ppb (2) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.14 ppb (2) 5.0 μg/m3 (5) 2.7 μg/m3 (12) 24.0
 
Oct. 23, 2021, 4 p.m. N/A N/A 1.3 ppb (2) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.14 ppb (2) 5.0 μg/m3 (5) 2.6 μg/m3 (11) 23.0
 
Oct. 23, 2021, 3 p.m. N/A N/A 1.5 ppb (2) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.14 ppb (2) 4.0 μg/m3 (4) 2.6 μg/m3 (11) 23.0
 
Oct. 23, 2021, 2 p.m. N/A N/A 1.8 ppb (2) N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.15 ppb (2) 5.0 μg/m3 (5) 2.8 μg/m3 (12) 21.0
 
Oct. 23, 2021, 1 p.m. N/A N/A 1.3 ppb (2) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.19 ppb (3) 6.0 μg/m3 (6) 2.8 μg/m3 (12) 19.0
 
Oct. 23, 2021, noon N/A N/A 0.9 ppb (1) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.13 ppb (2) 5.0 μg/m3 (5) 2.7 μg/m3 (12) 19.0
 
Oct. 23, 2021, 11 a.m. N/A N/A 0.9 ppb (1) N/A N/A 0.0 ppb (0) 19.0 ppb (18) 0.14 ppb (2) 5.0 μg/m3 (5) 2.7 μg/m3 (12) 18.0
 
Oct. 23, 2021, 10 a.m. N/A N/A 0.8 ppb (1) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.13 ppb (2) 4.0 μg/m3 (4) 2.6 μg/m3 (11) 19.0
 
Oct. 23, 2021, 9 a.m. N/A N/A 0.9 ppb (1) N/A N/A 0.0 ppb (0) 21.0 ppb (20) 0.14 ppb (2) 5.0 μg/m3 (5) 2.5 μg/m3 (11) 20.0
 
Oct. 23, 2021, 8 a.m. N/A N/A 0.9 ppb (1) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.14 ppb (2) 5.0 μg/m3 (5) 2.9 μg/m3 (13) 19.0
 
Oct. 23, 2021, 7 a.m. N/A N/A 1.0 ppb (1) N/A N/A 0.0 ppb (0) 19.0 ppb (18) 0.15 ppb (2) 6.0 μg/m3 (6) 3.1 μg/m3 (13) 18.0
 
Oct. 23, 2021, 6 a.m. N/A N/A 1.1 ppb (2) N/A N/A 0.0 ppb (0) 19.0 ppb (18) 0.12 ppb (2) 7.0 μg/m3 (7) 3.6 μg/m3 (16) 18.0
 
Oct. 23, 2021, 5 a.m. N/A N/A 1.0 ppb (1) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.15 ppb (2) 7.0 μg/m3 (7) 3.6 μg/m3 (16) 19.0
 
Oct. 23, 2021, 4 a.m. N/A N/A 0.9 ppb (1) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.15 ppb (2) 6.0 μg/m3 (6) 3.4 μg/m3 (15) 23.0
 
Oct. 23, 2021, 3 a.m. N/A N/A 0.8 ppb (1) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.15 ppb (2) 6.0 μg/m3 (6) 3.2 μg/m3 (14) 25.0
 
Oct. 23, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.15 ppb (2) 6.0 μg/m3 (6) 3.1 μg/m3 (13) 27.0
 
Oct. 23, 2021, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.15 ppb (2) 4.0 μg/m3 (4) 3.0 μg/m3 (13) 27.0
 
Oct. 23, 2021, midnight N/A N/A 1.3 ppb (2) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.13 ppb (2) 5.0 μg/m3 (5) 2.6 μg/m3 (11) 25.0
 
Oct. 22, 2021, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.17 ppb (3) 6.0 μg/m3 (6) 3.3 μg/m3 (14) 25.0
 
Oct. 22, 2021, 10 p.m. N/A N/A 1.5 ppb (2) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.17 ppb (3) 6.0 μg/m3 (6) 2.5 μg/m3 (11) 26.0
 
Oct. 22, 2021, 9 p.m. N/A N/A 1.4 ppb (2) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.16 ppb (3) 4.0 μg/m3 (4) 1.9 μg/m3 (8) 30.0
 
Oct. 22, 2021, 8 p.m. N/A N/A 1.5 ppb (2) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.16 ppb (3) 6.0 μg/m3 (6) 3.0 μg/m3 (13) 30.0
 
Oct. 22, 2021, 7 p.m. N/A N/A 1.6 ppb (2) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.15 ppb (2) 6.0 μg/m3 (6) 3.4 μg/m3 (15) 32.0
 
Oct. 22, 2021, 6 p.m. N/A N/A 1.7 ppb (2) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.12 ppb (2) 7.0 μg/m3 (7) 4.0 μg/m3 (17) 33.0
 
Oct. 22, 2021, 5 p.m. N/A N/A 1.8 ppb (2) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.16 ppb (3) 9.0 μg/m3 (9) 4.9 μg/m3 (21) 33.0
 
Oct. 22, 2021, 4 p.m. N/A N/A 1.9 ppb (2) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.16 ppb (3) 11.0 μg/m3 (11) 5.9 μg/m3 (25) 34.0
 
Oct. 22, 2021, 3 p.m. N/A N/A 2.3 ppb (3) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.17 ppb (3) 14.0 μg/m3 (13) 8.3 μg/m3 (35) 36.0
 
Oct. 22, 2021, 2 p.m. N/A N/A 4.0 ppb (4) N/A N/A 1.0 ppb (2) 36.0 ppb (34) 0.19 ppb (3) 20.0 μg/m3 (19) 12.2 μg/m3 (52) 52.0
 
Oct. 22, 2021, 1 p.m. N/A N/A 5.7 ppb (6) N/A N/A 1.0 ppb (2) 29.0 ppb (27) 0.22 ppb (3) 23.0 μg/m3 (22) 14.2 μg/m3 (56) 56.0
 
Oct. 22, 2021, noon N/A N/A 3.5 ppb (4) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.17 ppb (3) 23.0 μg/m3 (22) 14.7 μg/m3 (57) 57.0
 
Oct. 22, 2021, 11 a.m. N/A N/A 2.9 ppb (3) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.2 ppb (3) 23.0 μg/m3 (22) 14.4 μg/m3 (56) 56.0
 
Oct. 22, 2021, 10 a.m. N/A N/A 2.7 ppb (3) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.19 ppb (3) 22.0 μg/m3 (21) 13.2 μg/m3 (54) 54.0
 
Oct. 22, 2021, 9 a.m. N/A N/A 2.8 ppb (3) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.19 ppb (3) 19.0 μg/m3 (18) 11.3 μg/m3 (48) 48.0
 
Oct. 22, 2021, 8 a.m. N/A N/A 2.9 ppb (3) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.18 ppb (3) 16.0 μg/m3 (15) 9.8 μg/m3 (41) 41.0
 
Oct. 22, 2021, 7 a.m. N/A N/A 3.1 ppb (3) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.18 ppb (3) 16.0 μg/m3 (15) 9.2 μg/m3 (39) 39.0
 
Oct. 22, 2021, 6 a.m. N/A N/A 3.3 ppb (4) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.15 ppb (2) 15.0 μg/m3 (14) 8.7 μg/m3 (37) 37.0
 
Oct. 22, 2021, 5 a.m. N/A N/A 3.5 ppb (4) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.19 ppb (3) 16.0 μg/m3 (15) 8.4 μg/m3 (36) 36.0
 
Oct. 22, 2021, 4 a.m. N/A N/A 3.6 ppb (4) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.2 ppb (3) 17.0 μg/m3 (16) 8.3 μg/m3 (35) 35.0
 
Oct. 22, 2021, 3 a.m. N/A N/A 3.8 ppb (4) N/A N/A 1.0 ppb (2) 43.0 ppb (40) 0.2 ppb (3) 15.0 μg/m3 (14) 8.2 μg/m3 (35) 40.0
 
Oct. 22, 2021, 2 a.m. N/A N/A 3.9 ppb (4) N/A N/A 1.0 ppb (2) 44.0 ppb (41) 0.21 ppb (3) 17.0 μg/m3 (16) 8.1 μg/m3 (34) 41.0
 
Oct. 22, 2021, 1 a.m. N/A N/A 3.9 ppb (4) N/A N/A 1.0 ppb (2) 44.0 ppb (41) 0.23 ppb (3) 17.0 μg/m3 (16) 7.8 μg/m3 (33) 41.0
 
Oct. 22, 2021, midnight N/A N/A 3.8 ppb (4) N/A N/A 1.0 ppb (2) 48.0 ppb (45) 0.17 ppb (3) 17.0 μg/m3 (16) 7.1 μg/m3 (30) 45.0
 
Oct. 21, 2021, 11 p.m. N/A N/A 4.1 ppb (4) N/A N/A 1.0 ppb (2) 47.0 ppb (44) 0.21 ppb (3) 19.0 μg/m3 (18) 7.8 μg/m3 (33) 44.0
 
Oct. 21, 2021, 10 p.m. N/A N/A 6.0 ppb (6) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.29 ppb (4) 24.0 μg/m3 (23) 7.7 μg/m3 (33) 33.0
 
Oct. 21, 2021, 9 p.m. N/A N/A 3.6 ppb (4) N/A N/A 1.0 ppb (2) 38.0 ppb (36) 0.22 ppb (3) 16.0 μg/m3 (15) 6.1 μg/m3 (26) 36.0
 
Oct. 21, 2021, 8 p.m. N/A N/A 3.3 ppb (4) N/A N/A 1.0 ppb (2) 50.0 ppb (47) 0.19 ppb (3) 17.0 μg/m3 (16) 6.2 μg/m3 (26) 47.0
 
Oct. 21, 2021, 7 p.m. N/A N/A 3.5 ppb (4) N/A N/A 1.0 ppb (2) 55.0 ppb (51) 0.18 ppb (3) 18.0 μg/m3 (17) 6.4 μg/m3 (27) 51.0
 
Oct. 21, 2021, 6 p.m. N/A N/A 3.6 ppb (4) N/A N/A 1.0 ppb (2) 56.0 ppb (55) 0.15 ppb (2) 18.0 μg/m3 (17) 6.4 μg/m3 (27) 55.0
 
Oct. 21, 2021, 5 p.m. N/A N/A 4.0 ppb (4) N/A N/A 1.0 ppb (2) 53.0 ppb (50) 0.19 ppb (3) 16.0 μg/m3 (15) 6.5 μg/m3 (28) 50.0
 
Oct. 21, 2021, 4 p.m. N/A N/A 4.3 ppb (5) N/A N/A 1.0 ppb (2) 46.0 ppb (43) 0.19 ppb (3) 18.0 μg/m3 (17) 6.6 μg/m3 (28) 43.0
 
Oct. 21, 2021, 3 p.m. N/A N/A 4.5 ppb (5) N/A N/A 1.0 ppb (2) 42.0 ppb (39) 0.2 ppb (3) 17.0 μg/m3 (16) 6.4 μg/m3 (27) 39.0
 
Oct. 21, 2021, 2 p.m. N/A N/A 6.2 ppb (6) N/A N/A 1.0 ppb (2) 34.0 ppb (32) 0.19 ppb (3) 16.0 μg/m3 (15) 6.3 μg/m3 (27) 32.0
 
Oct. 21, 2021, 1 p.m. N/A N/A 4.8 ppb (5) N/A N/A 1.0 ppb (2) 34.0 ppb (32) 0.19 ppb (3) 14.0 μg/m3 (13) 6.3 μg/m3 (27) 32.0
 
Oct. 21, 2021, noon N/A N/A 2.7 ppb (3) N/A N/A 1.0 ppb (2) 37.0 ppb (35) 0.14 ppb (2) 15.0 μg/m3 (14) 6.7 μg/m3 (28) 35.0
 
Oct. 21, 2021, 11 a.m. N/A N/A 2.6 ppb (3) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.18 ppb (3) 12.0 μg/m3 (12) 6.5 μg/m3 (28) 28.0
 
Oct. 21, 2021, 10 a.m. N/A N/A 2.6 ppb (3) N/A N/A 0.0 ppb (0) 18.0 ppb (17) 0.18 ppb (3) 12.0 μg/m3 (12) 6.8 μg/m3 (29) 29.0
 
Oct. 21, 2021, 9 a.m. N/A N/A 2.8 ppb (3) N/A N/A 0.0 ppb (0) N/A 0.18 ppb (3) 13.0 μg/m3 (13) 7.2 μg/m3 (31) 31.0
 
Oct. 21, 2021, 8 a.m. N/A N/A 3.0 ppb (3) N/A N/A 0.0 ppb (0) 17.0 ppb (16) 0.18 ppb (3) 14.0 μg/m3 (13) 7.3 μg/m3 (31) 31.0
 
Oct. 21, 2021, 7 a.m. N/A N/A 3.2 ppb (4) N/A N/A 0.0 ppb (0) 16.0 ppb (15) N/A 15.0 μg/m3 (14) 7.6 μg/m3 (32) 32.0
 
Oct. 21, 2021, 6 a.m. N/A N/A 3.4 ppb (4) N/A N/A N/A 12.0 ppb (12) 0.16 ppb (3) 14.0 μg/m3 (13) 7.9 μg/m3 (33) 33.0
 
Oct. 21, 2021, 5 a.m. N/A N/A 3.6 ppb (4) N/A N/A N/A 13.0 ppb (13) 0.22 ppb (3) 15.0 μg/m3 (14) 8.0 μg/m3 (34) 34.0
 
Oct. 21, 2021, 4 a.m. N/A N/A 4.0 ppb (4) N/A N/A 0.0 ppb (0) 17.0 ppb (16) 0.22 ppb (3) 16.0 μg/m3 (15) 7.8 μg/m3 (33) 33.0
 
Oct. 21, 2021, 3 a.m. N/A N/A 4.8 ppb (5) N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.22 ppb (3) 16.0 μg/m3 (15) 8.4 μg/m3 (36) 36.0
 
Oct. 21, 2021, 2 a.m. N/A N/A 5.6 ppb (6) N/A N/A 0.0 ppb (0) 17.0 ppb (16) 0.25 ppb (3) 17.0 μg/m3 (16) 8.5 μg/m3 (36) 36.0
 
Oct. 21, 2021, 1 a.m. N/A N/A 5.6 ppb (6) N/A N/A 0.0 ppb (0) 14.0 ppb (13) 0.24 ppb (3) 17.0 μg/m3 (16) 7.8 μg/m3 (33) 33.0
 
Oct. 21, 2021, midnight N/A N/A 4.7 ppb (5) N/A N/A 0.0 ppb (0) 16.0 ppb (15) 0.19 ppb (3) 15.0 μg/m3 (14) 6.6 μg/m3 (28) 28.0
 
Oct. 20, 2021, 11 p.m. N/A N/A 3.4 ppb (4) N/A N/A 0.0 ppb (0) 21.0 ppb (20) 0.21 ppb (3) 16.0 μg/m3 (15) 6.1 μg/m3 (26) 26.0
 
Oct. 20, 2021, 10 p.m. N/A N/A 3.3 ppb (4) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.19 ppb (3) 21.0 μg/m3 (20) 5.8 μg/m3 (25) 25.0
 
Oct. 20, 2021, 9 p.m. N/A N/A 1.9 ppb (2) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.18 ppb (3) 17.0 μg/m3 (16) 5.3 μg/m3 (23) 28.0
 
Oct. 20, 2021, 8 p.m. N/A N/A 1.6 ppb (2) N/A N/A 1.0 ppb (2) 40.0 ppb (38) 0.15 ppb (2) 15.0 μg/m3 (14) 5.2 μg/m3 (22) 38.0
 
Oct. 20, 2021, 7 p.m. N/A N/A 1.5 ppb (2) N/A N/A 1.0 ppb (2) 40.0 ppb (38) 0.15 ppb (2) 12.0 μg/m3 (12) 4.9 μg/m3 (21) 38.0
 
Oct. 20, 2021, 6 p.m. N/A N/A 1.8 ppb (2) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.11 ppb (2) 11.0 μg/m3 (11) 4.7 μg/m3 (20) 37.0
 
Oct. 20, 2021, 5 p.m. N/A N/A 3.3 ppb (4) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.15 ppb (2) 13.0 μg/m3 (13) 5.2 μg/m3 (22) 35.0
 
Oct. 20, 2021, 4 p.m. N/A N/A 3.8 ppb (4) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.18 ppb (3) 12.0 μg/m3 (12) 5.5 μg/m3 (23) 31.0
 
Oct. 20, 2021, 3 p.m. N/A N/A 3.1 ppb (3) N/A N/A 1.0 ppb (2) 32.0 ppb (30) 0.18 ppb (3) 14.0 μg/m3 (13) 5.1 μg/m3 (22) 30.0
 
Oct. 20, 2021, 2 p.m. N/A N/A 3.5 ppb (4) N/A N/A 1.0 ppb (2) 32.0 ppb (30) 0.16 ppb (3) 14.0 μg/m3 (13) 5.0 μg/m3 (21) 30.0
 
Oct. 20, 2021, 1 p.m. N/A N/A 5.6 ppb (6) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.17 ppb (3) 13.0 μg/m3 (13) 5.4 μg/m3 (23) 23.0
 
Oct. 20, 2021, noon N/A N/A 4.7 ppb (5) N/A N/A 0.0 ppb (0) 15.0 ppb (14) 0.14 ppb (2) 11.0 μg/m3 (11) 5.0 μg/m3 (21) 21.0
 
Oct. 20, 2021, 11 a.m. N/A N/A 2.5 ppb (3) N/A N/A 0.0 ppb (0) 12.0 ppb (12) 0.16 ppb (3) 9.0 μg/m3 (9) 4.8 μg/m3 (20) 20.0
 
Oct. 20, 2021, 10 a.m. N/A N/A 2.1 ppb (2) N/A N/A 0.0 ppb (0) 14.0 ppb (13) 0.16 ppb (3) 9.0 μg/m3 (9) 4.7 μg/m3 (20) 20.0
 
Oct. 20, 2021, 9 a.m. N/A N/A 1.8 ppb (2) N/A N/A 0.0 ppb (0) 12.0 ppb (12) 0.15 ppb (2) 9.0 μg/m3 (9) 4.4 μg/m3 (19) 19.0
 
Oct. 20, 2021, 8 a.m. N/A N/A 1.6 ppb (2) N/A N/A 0.0 ppb (0) 14.0 ppb (13) 0.15 ppb (2) 9.0 μg/m3 (9) 4.4 μg/m3 (19) 19.0
 
Oct. 20, 2021, 7 a.m. N/A N/A 1.6 ppb (2) N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.15 ppb (2) 9.0 μg/m3 (9) 4.3 μg/m3 (18) 21.0
 
Oct. 20, 2021, 6 a.m. N/A N/A 1.6 ppb (2) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.12 ppb (2) 8.0 μg/m3 (8) 4.0 μg/m3 (17) 23.0
 
Oct. 20, 2021, 5 a.m. N/A N/A 1.6 ppb (2) N/A N/A 0.0 ppb (0) 16.0 ppb (15) 0.16 ppb (3) 7.0 μg/m3 (7) 3.6 μg/m3 (16) 16.0
 
Oct. 20, 2021, 4 a.m. N/A N/A 1.4 ppb (2) N/A N/A 0.0 ppb (0) 18.0 ppb (17) 0.15 ppb (2) 6.0 μg/m3 (6) 3.2 μg/m3 (14) 17.0
 
Oct. 20, 2021, 3 a.m. N/A N/A 1.4 ppb (2) N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.15 ppb (2) 7.0 μg/m3 (7) 3.2 μg/m3 (14) 21.0
 
Oct. 20, 2021, 2 a.m. N/A N/A 1.3 ppb (2) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.15 ppb (2) 6.0 μg/m3 (6) 3.2 μg/m3 (14) 24.0
 
Oct. 20, 2021, 1 a.m. N/A N/A 1.1 ppb (2) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.16 ppb (3) 5.0 μg/m3 (5) 2.8 μg/m3 (12) 29.0
 
Oct. 20, 2021, midnight N/A N/A 0.9 ppb (1) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.11 ppb (2) 6.0 μg/m3 (6) 2.4 μg/m3 (10) 33.0
 
Oct. 19, 2021, 11 p.m. N/A N/A 0.9 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.13 ppb (2) 8.0 μg/m3 (8) 2.4 μg/m3 (10) 35.0
 
Oct. 19, 2021, 10 p.m. N/A N/A 0.9 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.13 ppb (2) 5.0 μg/m3 (5) 2.1 μg/m3 (9) 35.0
 
Oct. 19, 2021, 9 p.m. N/A N/A 0.8 ppb (1) N/A N/A 1.0 ppb (2) 37.0 ppb (35) 0.13 ppb (2) 7.0 μg/m3 (7) 2.2 μg/m3 (10) 35.0
 
Oct. 19, 2021, 8 p.m. N/A N/A 0.9 ppb (1) N/A N/A 1.0 ppb (2) 36.0 ppb (34) 0.13 ppb (2) 8.0 μg/m3 (8) 2.2 μg/m3 (10) 34.0
 
Oct. 19, 2021, 7 p.m. N/A N/A 0.9 ppb (1) N/A N/A 1.0 ppb (2) 38.0 ppb (36) 0.13 ppb (2) 10.0 μg/m3 (10) 2.1 μg/m3 (9) 36.0
 
Oct. 19, 2021, 6 p.m. N/A N/A 0.8 ppb (1) N/A N/A 1.0 ppb (2) 37.0 ppb (35) 0.1 ppb (2) 9.0 μg/m3 (9) 1.9 μg/m3 (8) 35.0
 
Oct. 19, 2021, 5 p.m. N/A N/A 0.8 ppb (1) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.13 ppb (2) 5.0 μg/m3 (5) 1.6 μg/m3 (7) 32.0
 
Oct. 19, 2021, 4 p.m. N/A N/A 0.9 ppb (1) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.14 ppb (2) 4.0 μg/m3 (4) 1.7 μg/m3 (8) 28.0
 
Oct. 19, 2021, 3 p.m. N/A N/A 1.0 ppb (1) N/A N/A 1.0 ppb (2) 25.0 ppb (24) 0.13 ppb (2) 6.0 μg/m3 (6) 1.8 μg/m3 (8) 24.0
 
Oct. 19, 2021, 2 p.m. N/A N/A 1.1 ppb (2) N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.13 ppb (2) 6.0 μg/m3 (6) 1.8 μg/m3 (8) 22.0
 
Oct. 19, 2021, 1 p.m. N/A N/A 1.1 ppb (2) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.14 ppb (2) 3.0 μg/m3 (3) 1.6 μg/m3 (7) 19.0
 
Oct. 19, 2021, noon N/A N/A 1.0 ppb (1) N/A N/A 0.0 ppb (0) 15.0 ppb (14) 0.12 ppb (2) 3.0 μg/m3 (3) 1.8 μg/m3 (8) 14.0
 
Oct. 19, 2021, 11 a.m. N/A N/A 0.7 ppb (1) N/A N/A 0.0 ppb (0) 14.0 ppb (13) 0.15 ppb (2) 3.0 μg/m3 (3) 1.4 μg/m3 (6) 13.0
 
Oct. 19, 2021, 10 a.m. N/A N/A 0.5 ppb (1) N/A N/A 0.0 ppb (0) 14.0 ppb (13) 0.14 ppb (2) 3.0 μg/m3 (3) 1.4 μg/m3 (6) 13.0
 
Oct. 19, 2021, 9 a.m. N/A N/A 0.6 ppb (1) N/A N/A 0.0 ppb (0) 14.0 ppb (13) 0.14 ppb (2) 3.0 μg/m3 (3) 1.5 μg/m3 (7) 13.0
 
Oct. 19, 2021, 8 a.m. N/A N/A 0.6 ppb (1) N/A N/A 0.0 ppb (0) 14.0 ppb (13) 0.14 ppb (2) 3.0 μg/m3 (3) 1.7 μg/m3 (8) 13.0
 
Oct. 19, 2021, 7 a.m. N/A N/A 0.6 ppb (1) N/A N/A 0.0 ppb (0) 14.0 ppb (13) 0.14 ppb (2) 4.0 μg/m3 (4) 2.0 μg/m3 (9) 13.0
 
Oct. 19, 2021, 6 a.m. N/A N/A 0.7 ppb (1) N/A N/A 0.0 ppb (0) 14.0 ppb (13) 0.11 ppb (2) 4.0 μg/m3 (4) 2.4 μg/m3 (10) 13.0
 
Oct. 19, 2021, 5 a.m. N/A N/A 0.7 ppb (1) N/A N/A 0.0 ppb (0) 13.0 ppb (13) 0.14 ppb (2) 5.0 μg/m3 (5) 2.6 μg/m3 (11) 13.0
 
Oct. 19, 2021, 4 a.m. N/A N/A 0.7 ppb (1) N/A N/A 0.0 ppb (0) 12.0 ppb (12) 0.13 ppb (2) 4.0 μg/m3 (4) 2.2 μg/m3 (10) 12.0
 
Oct. 19, 2021, 3 a.m. N/A N/A 0.7 ppb (1) N/A N/A 0.0 ppb (0) 13.0 ppb (13) 0.13 ppb (2) 3.0 μg/m3 (3) 1.8 μg/m3 (8) 13.0
 
Oct. 19, 2021, 2 a.m. N/A N/A 0.7 ppb (1) N/A N/A 0.0 ppb (0) 14.0 ppb (13) 0.13 ppb (2) 3.0 μg/m3 (3) 1.4 μg/m3 (6) 13.0
 
Oct. 19, 2021, 1 a.m. N/A N/A 0.7 ppb (1) N/A N/A 0.0 ppb (0) 14.0 ppb (13) 0.13 ppb (2) 2.0 μg/m3 (2) 1.2 μg/m3 (5) 13.0
 
Oct. 19, 2021, midnight N/A N/A 0.7 ppb (1) N/A N/A 0.0 ppb (0) 14.0 ppb (13) 0.11 ppb (2) 4.0 μg/m3 (4) 1.7 μg/m3 (8) 13.0
 
Oct. 18, 2021, 11 p.m. N/A N/A 0.8 ppb (1) N/A N/A 0.0 ppb (0) 19.0 ppb (18) 0.15 ppb (2) 4.0 μg/m3 (4) 2.1 μg/m3 (9) 18.0
 
Oct. 18, 2021, 10 p.m. N/A N/A 0.7 ppb (1) N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.15 ppb (2) 4.0 μg/m3 (4) 1.6 μg/m3 (7) 21.0
 
Oct. 18, 2021, 9 p.m. N/A N/A 0.7 ppb (1) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.14 ppb (2) 4.0 μg/m3 (4) 1.5 μg/m3 (7) 23.0
 
Oct. 18, 2021, 8 p.m. N/A N/A 0.7 ppb (1) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.14 ppb (2) 5.0 μg/m3 (5) 1.5 μg/m3 (7) 26.0
 
Oct. 18, 2021, 7 p.m. N/A N/A 0.8 ppb (1) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.14 ppb (2) 4.0 μg/m3 (4) 1.5 μg/m3 (7) 26.0
 
Oct. 18, 2021, 6 p.m. N/A N/A 0.8 ppb (1) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.11 ppb (2) 4.0 μg/m3 (4) 1.6 μg/m3 (7) 28.0
 
Oct. 18, 2021, 5 p.m. N/A N/A 0.8 ppb (1) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.13 ppb (2) 4.0 μg/m3 (4) 1.6 μg/m3 (7) 27.0
 
Oct. 18, 2021, 4 p.m. N/A N/A 0.8 ppb (1) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.13 ppb (2) 4.0 μg/m3 (4) 1.5 μg/m3 (7) 25.0
 
Oct. 18, 2021, 3 p.m. N/A N/A 0.9 ppb (1) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.13 ppb (2) 3.0 μg/m3 (3) 1.5 μg/m3 (7) 23.0
 
Oct. 18, 2021, 2 p.m. N/A N/A 1.0 ppb (1) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.13 ppb (2) 5.0 μg/m3 (5) 2.0 μg/m3 (9) 25.0
 
Oct. 18, 2021, 1 p.m. N/A N/A 1.1 ppb (2) N/A N/A 1.0 ppb (2) 26.0 ppb (25) 0.13 ppb (2) 6.0 μg/m3 (6) 2.3 μg/m3 (10) 25.0
 
Oct. 18, 2021, noon N/A N/A 0.9 ppb (1) N/A N/A 1.0 ppb (2) 23.0 ppb (22) 0.11 ppb (2) 5.0 μg/m3 (5) 1.8 μg/m3 (8) 22.0
 
Oct. 18, 2021, 11 a.m. N/A N/A 0.7 ppb (1) N/A N/A 1.0 ppb (2) 17.0 ppb (16) 0.15 ppb (2) 4.0 μg/m3 (4) 1.5 μg/m3 (7) 16.0
 
Oct. 18, 2021, 10 a.m. N/A N/A 0.7 ppb (1) N/A N/A 1.0 ppb (2) 16.0 ppb (15) 0.15 ppb (2) 4.0 μg/m3 (4) 1.6 μg/m3 (7) 15.0
 
Oct. 18, 2021, 9 a.m. N/A N/A 0.7 ppb (1) N/A N/A 0.0 ppb (0) 17.0 ppb (16) 0.15 ppb (2) 4.0 μg/m3 (4) 1.8 μg/m3 (8) 16.0
 
Oct. 18, 2021, 8 a.m. N/A N/A 0.7 ppb (1) N/A N/A 0.0 ppb (0) 18.0 ppb (17) 0.15 ppb (2) 5.0 μg/m3 (5) 2.0 μg/m3 (9) 17.0
 
Oct. 18, 2021, 7 a.m. N/A N/A 0.8 ppb (1) N/A N/A 0.0 ppb (0) 19.0 ppb (18) 0.15 ppb (2) 4.0 μg/m3 (4) 2.2 μg/m3 (10) 18.0
 
Oct. 18, 2021, 6 a.m. N/A N/A 0.8 ppb (1) N/A N/A 0.0 ppb (0) 18.0 ppb (17) 0.12 ppb (2) 4.0 μg/m3 (4) 2.2 μg/m3 (10) 17.0
 
Oct. 18, 2021, 5 a.m. N/A N/A 0.9 ppb (1) N/A N/A 0.0 ppb (0) 17.0 ppb (16) 0.16 ppb (3) 6.0 μg/m3 (6) 2.5 μg/m3 (11) 16.0
 
Oct. 18, 2021, 4 a.m. N/A N/A 1.0 ppb (1) N/A N/A 0.0 ppb (0) 15.0 ppb (14) 0.17 ppb (3) 7.0 μg/m3 (7) 2.6 μg/m3 (11) 14.0
 
Oct. 18, 2021, 3 a.m. N/A N/A 1.1 ppb (2) N/A N/A 0.0 ppb (0) 18.0 ppb (17) 0.16 ppb (3) 7.0 μg/m3 (7) 3.2 μg/m3 (14) 17.0
 
Oct. 18, 2021, 2 a.m. N/A N/A 1.1 ppb (2) N/A N/A 0.0 ppb (0) 12.0 ppb (12) 0.17 ppb (3) 8.0 μg/m3 (8) 3.9 μg/m3 (17) 17.0
 
Oct. 18, 2021, 1 a.m. N/A N/A 0.9 ppb (1) N/A N/A 0.0 ppb (0) 13.0 ppb (13) 0.19 ppb (3) 7.0 μg/m3 (7) 3.6 μg/m3 (16) 16.0
 
Oct. 18, 2021, midnight N/A N/A 0.8 ppb (1) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.13 ppb (2) 6.0 μg/m3 (6) 3.4 μg/m3 (15) 19.0
 
Oct. 17, 2021, 11 p.m. N/A N/A 0.8 ppb (1) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.18 ppb (3) 8.0 μg/m3 (8) 4.0 μg/m3 (17) 23.0
 
Oct. 17, 2021, 10 p.m. N/A N/A 0.8 ppb (1) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.17 ppb (3) 6.0 μg/m3 (6) 3.1 μg/m3 (13) 25.0
 
Oct. 17, 2021, 9 p.m. N/A N/A 0.7 ppb (1) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.16 ppb (3) 3.0 μg/m3 (3) 2.3 μg/m3 (10) 29.0
 
Oct. 17, 2021, 8 p.m. N/A N/A 0.7 ppb (1) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.16 ppb (3) 5.0 μg/m3 (5) 2.4 μg/m3 (10) 31.0
 
Oct. 17, 2021, 7 p.m. N/A N/A 0.7 ppb (1) N/A N/A 0.0 ppb (0) 32.0 ppb (30) N/A 6.0 μg/m3 (6) 2.8 μg/m3 (12) 30.0
 
Oct. 17, 2021, 6 p.m. N/A N/A 0.7 ppb (1) N/A N/A N/A 32.0 ppb (30) 0.12 ppb (2) 6.0 μg/m3 (6) 2.9 μg/m3 (13) 30.0
 
Oct. 17, 2021, 5 p.m. N/A N/A 0.7 ppb (1) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.14 ppb (2) 6.0 μg/m3 (6) 2.9 μg/m3 (13) 30.0
 
Oct. 17, 2021, 4 p.m. N/A N/A 0.7 ppb (1) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.14 ppb (2) 7.0 μg/m3 (7) 3.0 μg/m3 (13) 30.0
 
Oct. 17, 2021, 3 p.m. N/A N/A 0.6 ppb (1) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.14 ppb (2) 6.0 μg/m3 (6) 2.7 μg/m3 (12) 29.0
 
Oct. 17, 2021, 2 p.m. N/A N/A 0.6 ppb (1) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.14 ppb (2) 7.0 μg/m3 (7) 2.7 μg/m3 (12) 29.0
 
Oct. 17, 2021, 1 p.m. N/A N/A 0.6 ppb (1) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.13 ppb (2) 8.0 μg/m3 (8) 3.1 μg/m3 (13) 29.0
 
Oct. 17, 2021, noon N/A N/A 0.6 ppb (1) N/A N/A 1.0 ppb (2) 30.0 ppb (28) 0.11 ppb (2) 9.0 μg/m3 (9) 3.5 μg/m3 (15) 28.0
 
Oct. 17, 2021, 11 a.m. N/A N/A 0.6 ppb (1) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.15 ppb (2) 9.0 μg/m3 (9) 3.4 μg/m3 (15) 27.0
 
Oct. 17, 2021, 10 a.m. N/A N/A 0.7 ppb (1) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.15 ppb (2) 9.0 μg/m3 (9) 3.3 μg/m3 (14) 30.0
 
Oct. 17, 2021, 9 a.m. N/A N/A 0.7 ppb (1) N/A N/A 0.0 ppb (0) N/A 0.15 ppb (2) 10.0 μg/m3 (10) 3.5 μg/m3 (15) 15.0
 
Oct. 17, 2021, 8 a.m. N/A N/A 0.8 ppb (1) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.14 ppb (2) 9.0 μg/m3 (9) 3.3 μg/m3 (14) 28.0