AQSQID: 330150018

Site Name: Londonderry - Moose Hill

Location: Londonderry, NH

Reporting: True, Located: True

Current AQI: 38.0

Londonderry NH, US: 42.862537, -71.380173

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 19, 2019, 4 p.m. N/A N/A 6.8 ppb (6) N/A N/A 2.0 ppb (3) 34.0 ppb (26) 0.18 ppb (2) 12.0 μg/m3 (11) 9.0 μg/m3 (38) 38.0
 
Jan. 19, 2019, 3 p.m. N/A N/A 7.0 ppb (6) N/A N/A 3.0 ppb (4) 32.0 ppb (25) 0.17 ppb (2) 12.0 μg/m3 (11) 8.0 μg/m3 (33) 33.0
 
Jan. 19, 2019, 2 p.m. N/A N/A 10.6 ppb (10) N/A N/A 6.0 ppb (9) 30.0 ppb (23) 0.14 ppb (2) 11.0 μg/m3 (10) 8.0 μg/m3 (33) 33.0
 
Jan. 19, 2019, 1 p.m. N/A N/A 8.0 ppb (7) N/A N/A 3.0 ppb (4) 30.0 ppb (23) 0.16 ppb (2) 12.0 μg/m3 (11) 8.0 μg/m3 (33) 33.0
 
Jan. 19, 2019, noon N/A N/A 3.3 ppb (3) N/A N/A 1.0 ppb (1) 33.0 ppb (25) 0.15 ppb (2) 7.0 μg/m3 (6) 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2019, 11 a.m. N/A N/A 3.2 ppb (3) N/A N/A 1.0 ppb (1) 34.0 ppb (26) 0.15 ppb (2) 7.0 μg/m3 (6) 7.0 μg/m3 (29) 29.0
 
Jan. 19, 2019, 10 a.m. N/A N/A 5.7 ppb (5) N/A N/A 3.0 ppb (4) 30.0 ppb (23) 0.15 ppb (2) 8.0 μg/m3 (7) 9.0 μg/m3 (38) 38.0
 
Jan. 19, 2019, 9 a.m. N/A N/A 4.3 ppb (4) N/A N/A 1.0 ppb (1) 27.0 ppb (21) 0.17 ppb (2) 8.0 μg/m3 (7) 10.0 μg/m3 (42) 42.0
 
Jan. 19, 2019, 8 a.m. N/A N/A 3.1 ppb (3) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.13 ppb (1) 7.0 μg/m3 (6) 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2019, 7 a.m. N/A N/A 3.0 ppb (3) N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.18 ppb (2) 6.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2019, 6 a.m. N/A N/A 3.0 ppb (3) N/A N/A 1.0 ppb (1) 32.0 ppb (25) 0.16 ppb (2) 7.0 μg/m3 (6) 8.0 μg/m3 (33) 33.0
 
Jan. 19, 2019, 5 a.m. N/A N/A 3.3 ppb (3) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.16 ppb (2) 9.0 μg/m3 (8) 8.0 μg/m3 (33) 33.0
 
Jan. 19, 2019, 4 a.m. N/A N/A 4.2 ppb (4) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.17 ppb (2) 7.0 μg/m3 (6) 10.0 μg/m3 (42) 42.0
 
Jan. 19, 2019, 3 a.m. N/A N/A 5.2 ppb (5) N/A N/A 1.0 ppb (1) 25.0 ppb (19) 0.2 ppb (2) 8.0 μg/m3 (7) 7.0 μg/m3 (29) 29.0
 
Jan. 19, 2019, 2 a.m. N/A N/A 6.0 ppb (6) N/A N/A 1.0 ppb (1) 25.0 ppb (19) 0.16 ppb (2) 10.0 μg/m3 (9) 9.0 μg/m3 (38) 38.0
 
Jan. 19, 2019, 1 a.m. N/A N/A 7.3 ppb (7) N/A N/A 1.0 ppb (1) 26.0 ppb (20) 0.2 ppb (2) 13.0 μg/m3 (12) 7.0 μg/m3 (29) 29.0
 
Jan. 19, 2019, midnight N/A N/A 8.2 ppb (8) N/A N/A 1.0 ppb (1) 27.0 ppb (21) 0.21 ppb (2) 15.0 μg/m3 (14) 11.0 μg/m3 (46) 46.0
 
Jan. 18, 2019, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 25.0 ppb (19) 0.22 ppb (2) 13.0 μg/m3 (12) 11.0 μg/m3 (46) 46.0
 
Jan. 18, 2019, 10 p.m. N/A N/A 9.7 ppb (9) N/A N/A 1.0 ppb (1) 27.0 ppb (21) 0.22 ppb (2) 13.0 μg/m3 (12) 6.0 μg/m3 (25) 25.0
 
Jan. 18, 2019, 9 p.m. N/A N/A 9.7 ppb (9) N/A N/A 1.0 ppb (1) 29.0 ppb (22) 0.19 ppb (2) 16.0 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
Jan. 18, 2019, 8 p.m. N/A N/A 10.6 ppb (10) N/A N/A 1.0 ppb (1) 30.0 ppb (23) 0.15 ppb (2) 12.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
Jan. 18, 2019, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 25.0 ppb (19) 0.23 ppb (3) 18.0 μg/m3 (16) 7.0 μg/m3 (29) 29.0
 
Jan. 18, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 20.0 ppb (15) 0.29 ppb (3) 27.0 μg/m3 (25) 10.0 μg/m3 (42) 42.0
 
Jan. 18, 2019, 5 p.m. N/A N/A 27.7 ppb (26) N/A N/A 1.0 ppb (1) 20.0 ppb (15) 0.29 ppb (3) 43.0 μg/m3 (39) 9.0 μg/m3 (38) 39.0
 
Jan. 18, 2019, 4 p.m. N/A N/A 25.0 ppb (23) N/A N/A 1.0 ppb (1) 20.0 ppb (15) 0.29 ppb (3) 18.0 μg/m3 (16) 14.0 μg/m3 (54) 54.0
 
Jan. 18, 2019, 3 p.m. N/A N/A 25.4 ppb (24) N/A N/A 1.0 ppb (1) 18.0 ppb (14) 0.29 ppb (3) 26.0 μg/m3 (24) 9.0 μg/m3 (38) 38.0
 
Jan. 18, 2019, 2 p.m. N/A N/A 28.3 ppb (26) N/A N/A 1.0 ppb (1) 14.0 ppb (11) 0.25 ppb (3) 13.0 μg/m3 (12) 16.0 μg/m3 (59) 59.0
 
Jan. 18, 2019, 1 p.m. N/A N/A 32.1 ppb (30) N/A N/A 1.0 ppb (1) 8.0 ppb (6) 0.4 ppb (4) 23.0 μg/m3 (21) 9.0 μg/m3 (38) 38.0
 
Jan. 18, 2019, noon N/A N/A 23.9 ppb (22) N/A N/A 1.0 ppb (1) 6.0 ppb (5) 0.32 ppb (4) 12.0 μg/m3 (11) 10.0 μg/m3 (42) 42.0
 
Jan. 18, 2019, 11 a.m. N/A N/A 20.7 ppb (19) N/A N/A 1.0 ppb (1) 7.0 ppb (5) 0.27 ppb (3) 12.0 μg/m3 (11) 9.0 μg/m3 (38) 38.0
 
Jan. 18, 2019, 10 a.m. N/A N/A 19.9 ppb (18) N/A N/A 0.0 ppb (0) 10.0 ppb (8) 0.27 ppb (3) 10.0 μg/m3 (9) 10.0 μg/m3 (42) 42.0
 
Jan. 18, 2019, 9 a.m. N/A N/A 20.3 ppb (19) N/A N/A 1.0 ppb (1) 12.0 ppb (9) 0.28 ppb (3) 20.0 μg/m3 (18) 8.0 μg/m3 (33) 33.0
 
Jan. 18, 2019, 8 a.m. N/A N/A 20.2 ppb (19) N/A N/A 1.0 ppb (1) 10.0 ppb (8) 0.23 ppb (3) 40.0 μg/m3 (36) 12.0 μg/m3 (50) 50.0
 
Jan. 18, 2019, 7 a.m. N/A N/A 19.8 ppb (18) N/A N/A 1.0 ppb (1) 12.0 ppb (9) 0.29 ppb (3) 17.0 μg/m3 (15) 13.0 μg/m3 (52) 52.0
 
Jan. 18, 2019, 6 a.m. N/A N/A 18.9 ppb (18) N/A N/A 1.0 ppb (1) 14.0 ppb (11) 0.29 ppb (3) 18.0 μg/m3 (16) 12.0 μg/m3 (50) 50.0
 
Jan. 18, 2019, 5 a.m. N/A N/A 16.7 ppb (15) N/A N/A 1.0 ppb (1) 16.0 ppb (12) 0.27 ppb (3) 15.0 μg/m3 (14) 11.0 μg/m3 (46) 46.0
 
Jan. 18, 2019, 4 a.m. N/A N/A 13.6 ppb (13) N/A N/A 1.0 ppb (1) 21.0 ppb (16) 0.25 ppb (3) 13.0 μg/m3 (12) 10.0 μg/m3 (42) 42.0
 
Jan. 18, 2019, 3 a.m. N/A N/A 9.6 ppb (9) N/A N/A 1.0 ppb (1) 25.0 ppb (19) 0.23 ppb (3) 12.0 μg/m3 (11) 9.0 μg/m3 (38) 38.0
 
Jan. 18, 2019, 2 a.m. N/A N/A 8.2 ppb (8) N/A N/A 1.0 ppb (1) 28.0 ppb (22) 0.17 ppb (2) 14.0 μg/m3 (13) 7.0 μg/m3 (29) 29.0
 
Jan. 18, 2019, 1 a.m. N/A N/A 9.0 ppb (8) N/A N/A 1.0 ppb (1) 29.0 ppb (22) 0.2 ppb (2) 13.0 μg/m3 (12) 6.0 μg/m3 (25) 25.0
 
Jan. 18, 2019, midnight N/A N/A 9.1 ppb (8) N/A N/A 1.0 ppb (1) 28.0 ppb (22) 0.22 ppb (2) 20.0 μg/m3 (18) 7.0 μg/m3 (29) 29.0
 
Jan. 17, 2019, 11 p.m. N/A N/A 9.0 ppb (8) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.2 ppb (2) 17.0 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2019, 10 p.m. N/A N/A 8.3 ppb (8) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.21 ppb (2) 16.0 μg/m3 (15) 5.0 μg/m3 (21) 23.0
 
Jan. 17, 2019, 9 p.m. N/A N/A 5.3 ppb (5) N/A N/A 1.0 ppb (1) 35.0 ppb (27) 0.17 ppb (2) 9.0 μg/m3 (8) 4.0 μg/m3 (17) 27.0
 
Jan. 17, 2019, 8 p.m. N/A N/A 5.0 ppb (5) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.16 ppb (2) 8.0 μg/m3 (7) 2.0 μg/m3 (8) 28.0
 
Jan. 17, 2019, 7 p.m. N/A N/A 2.9 ppb (3) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.16 ppb (2) 8.0 μg/m3 (7) 4.0 μg/m3 (17) 30.0
 
Jan. 17, 2019, 6 p.m. N/A N/A 3.1 ppb (3) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.14 ppb (2) 7.0 μg/m3 (6) 5.0 μg/m3 (21) 30.0
 
Jan. 17, 2019, 5 p.m. N/A N/A 3.3 ppb (3) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.13 ppb (1) 9.0 μg/m3 (8) 3.0 μg/m3 (12) 30.0
 
Jan. 17, 2019, 4 p.m. N/A N/A 3.5 ppb (3) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.13 ppb (1) 6.0 μg/m3 (5) 4.0 μg/m3 (17) 29.0
 
Jan. 17, 2019, 3 p.m. N/A N/A 3.6 ppb (3) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.13 ppb (1) 9.0 μg/m3 (8) 4.0 μg/m3 (17) 28.0
 
Jan. 17, 2019, 2 p.m. N/A N/A 4.2 ppb (4) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.1 ppb (1) 8.0 μg/m3 (7) 3.0 μg/m3 (12) 28.0
 
Jan. 17, 2019, 1 p.m. N/A N/A 4.5 ppb (4) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.15 ppb (2) 7.0 μg/m3 (6) 4.0 μg/m3 (17) 26.0
 
Jan. 17, 2019, noon N/A N/A 4.4 ppb (4) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.16 ppb (2) 11.0 μg/m3 (10) 3.0 μg/m3 (12) 25.0
 
Jan. 17, 2019, 11 a.m. N/A N/A 3.5 ppb (3) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.16 ppb (2) 7.0 μg/m3 (6) 3.0 μg/m3 (12) 25.0
 
Jan. 17, 2019, 10 a.m. N/A N/A 3.0 ppb (3) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.17 ppb (2) 3.0 μg/m3 (3) 6.0 μg/m3 (25) 26.0
 
Jan. 17, 2019, 9 a.m. N/A N/A 2.2 ppb (2) N/A N/A 0.0 ppb (0) N/A 0.14 ppb (2) 4.0 μg/m3 (4) 7.0 μg/m3 (29) 29.0
 
Jan. 17, 2019, 8 a.m. N/A N/A 1.6 ppb (1) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.11 ppb (1) 6.0 μg/m3 (5) 6.0 μg/m3 (25) 27.0
 
Jan. 17, 2019, 7 a.m. N/A N/A 1.6 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (28) N/A 4.0 μg/m3 (4) 7.0 μg/m3 (29) 29.0
 
Jan. 17, 2019, 6 a.m. N/A N/A 1.6 ppb (1) N/A N/A N/A 37.0 ppb (28) 0.14 ppb (2) 2.0 μg/m3 (2) 5.0 μg/m3 (21) 28.0
 
Jan. 17, 2019, 5 a.m. N/A N/A 1.6 ppb (1) N/A N/A N/A 36.0 ppb (28) 0.15 ppb (2) 4.0 μg/m3 (4) 2.0 μg/m3 (8) 28.0
 
Jan. 17, 2019, 4 a.m. N/A N/A 1.7 ppb (2) N/A N/A 1.0 ppb (1) 35.0 ppb (27) 0.15 ppb (2) 5.0 μg/m3 (5) 3.0 μg/m3 (12) 27.0
 
Jan. 17, 2019, 3 a.m. N/A N/A 1.8 ppb (2) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.15 ppb (2) 6.0 μg/m3 (5) 3.0 μg/m3 (12) 25.0
 
Jan. 17, 2019, 2 a.m. N/A N/A 2.3 ppb (2) N/A N/A 1.0 ppb (1) 34.0 ppb (26) 0.11 ppb (1) 7.0 μg/m3 (6) 5.0 μg/m3 (21) 26.0
 
Jan. 17, 2019, 1 a.m. N/A N/A 3.8 ppb (4) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.15 ppb (2) 5.0 μg/m3 (5) 5.0 μg/m3 (21) 24.0
 
Jan. 17, 2019, midnight N/A N/A 4.2 ppb (4) N/A N/A 1.0 ppb (1) 25.0 ppb (19) 0.18 ppb (2) 9.0 μg/m3 (8) 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2019, 11 p.m. N/A N/A 4.2 ppb (4) N/A N/A 1.0 ppb (1) 26.0 ppb (20) 0.18 ppb (2) 12.0 μg/m3 (11) 7.0 μg/m3 (29) 29.0
 
Jan. 16, 2019, 10 p.m. N/A N/A 4.1 ppb (4) N/A N/A 1.0 ppb (1) 27.0 ppb (21) 0.18 ppb (2) 3.0 μg/m3 (3) 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2019, 9 p.m. N/A N/A 4.3 ppb (4) N/A N/A 1.0 ppb (1) 28.0 ppb (22) 0.16 ppb (2) 5.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2019, 8 p.m. N/A N/A 4.6 ppb (4) N/A N/A 1.0 ppb (1) 30.0 ppb (23) 0.13 ppb (1) 8.0 μg/m3 (7) 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2019, 7 p.m. N/A N/A 4.8 ppb (4) N/A N/A 1.0 ppb (1) 29.0 ppb (22) 0.19 ppb (2) 11.0 μg/m3 (10) 9.0 μg/m3 (38) 38.0
 
Jan. 16, 2019, 6 p.m. N/A N/A 4.7 ppb (4) N/A N/A 1.0 ppb (1) 29.0 ppb (22) 0.19 ppb (2) 10.0 μg/m3 (9) 12.0 μg/m3 (50) 50.0
 
Jan. 16, 2019, 5 p.m. N/A N/A 4.8 ppb (4) N/A N/A 1.0 ppb (1) 31.0 ppb (24) 0.19 ppb (2) 11.0 μg/m3 (10) 8.0 μg/m3 (33) 33.0
 
Jan. 16, 2019, 4 p.m. N/A N/A 8.3 ppb (8) N/A N/A 1.0 ppb (1) 29.0 ppb (22) 0.21 ppb (2) 19.0 μg/m3 (17) 12.0 μg/m3 (50) 50.0
 
Jan. 16, 2019, 3 p.m. N/A N/A 15.1 ppb (14) N/A N/A 1.0 ppb (1) 22.0 ppb (17) 0.25 ppb (3) 28.0 μg/m3 (25) 9.0 μg/m3 (38) 38.0
 
Jan. 16, 2019, 2 p.m. N/A N/A 19.7 ppb (18) N/A N/A 1.0 ppb (1) 18.0 ppb (14) 0.22 ppb (2) 23.0 μg/m3 (21) 13.0 μg/m3 (52) 52.0
 
Jan. 16, 2019, 1 p.m. N/A N/A 14.5 ppb (13) N/A N/A 1.0 ppb (1) 18.0 ppb (14) 0.26 ppb (3) 15.0 μg/m3 (14) 12.0 μg/m3 (50) 50.0
 
Jan. 16, 2019, noon N/A N/A 13.9 ppb (13) N/A N/A 1.0 ppb (1) 14.0 ppb (11) 0.28 ppb (3) 13.0 μg/m3 (12) 12.0 μg/m3 (50) 50.0
 
Jan. 16, 2019, 11 a.m. N/A N/A 12.8 ppb (12) N/A N/A 1.0 ppb (1) 12.0 ppb (9) 0.29 ppb (3) 10.0 μg/m3 (9) 12.0 μg/m3 (50) 50.0
 
Jan. 16, 2019, 10 a.m. N/A N/A 12.6 ppb (12) N/A N/A 1.0 ppb (1) 7.0 ppb (5) 0.33 ppb (4) 12.0 μg/m3 (11) 13.0 μg/m3 (52) 52.0
 
Jan. 16, 2019, 9 a.m. N/A N/A 11.1 ppb (10) N/A N/A 1.0 ppb (1) 6.0 ppb (5) 0.34 ppb (4) 17.0 μg/m3 (15) 17.0 μg/m3 (61) 61.0
 
Jan. 16, 2019, 8 a.m. N/A N/A 11.3 ppb (10) N/A N/A 1.0 ppb (1) 11.0 ppb (8) 0.25 ppb (3) 17.0 μg/m3 (15) 11.0 μg/m3 (46) 46.0
 
Jan. 16, 2019, 7 a.m. N/A N/A 10.8 ppb (10) N/A N/A 1.0 ppb (1) 7.0 ppb (5) 0.32 ppb (4) 16.0 μg/m3 (15) 15.0 μg/m3 (56) 56.0
 
Jan. 16, 2019, 6 a.m. N/A N/A 9.0 ppb (8) N/A N/A 0.0 ppb (0) 7.0 ppb (5) 0.3 ppb (3) 11.0 μg/m3 (10) 14.0 μg/m3 (54) 54.0
 
Jan. 16, 2019, 5 a.m. N/A N/A 9.4 ppb (9) N/A N/A 0.0 ppb (0) 14.0 ppb (11) 0.23 ppb (3) 5.0 μg/m3 (5) 5.0 μg/m3 (21) 21.0
 
Jan. 16, 2019, 4 a.m. N/A N/A 9.3 ppb (9) N/A N/A 0.0 ppb (0) 15.0 ppb (12) 0.22 ppb (2) 5.0 μg/m3 (5) 7.0 μg/m3 (29) 29.0
 
Jan. 16, 2019, 3 a.m. N/A N/A 8.5 ppb (8) N/A N/A 1.0 ppb (1) 17.0 ppb (13) 0.22 ppb (2) 10.0 μg/m3 (9) 10.0 μg/m3 (42) 42.0
 
Jan. 16, 2019, 2 a.m. N/A N/A 9.1 ppb (8) N/A N/A 1.0 ppb (1) 17.0 ppb (13) 0.21 ppb (2) 11.0 μg/m3 (10) 8.0 μg/m3 (33) 33.0
 
Jan. 16, 2019, 1 a.m. N/A N/A 8.0 ppb (7) N/A N/A 0.0 ppb (0) 21.0 ppb (16) 0.22 ppb (2) 9.0 μg/m3 (8) 4.0 μg/m3 (17) 17.0
 
Jan. 16, 2019, midnight N/A N/A 3.8 ppb (4) N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.2 ppb (2) 18.0 μg/m3 (16) 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2019, 11 p.m. N/A N/A 2.4 ppb (2) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.18 ppb (2) 4.0 μg/m3 (4) 7.0 μg/m3 (29) 29.0
 
Jan. 15, 2019, 10 p.m. N/A N/A 2.0 ppb (2) N/A N/A 1.0 ppb (1) 34.0 ppb (26) 0.15 ppb (2) 1.0 μg/m3 (1) 3.0 μg/m3 (12) 26.0
 
Jan. 15, 2019, 9 p.m. N/A N/A 2.0 ppb (2) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.14 ppb (2) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 27.0
 
Jan. 15, 2019, 8 p.m. N/A N/A 2.0 ppb (2) N/A N/A 1.0 ppb (1) 37.0 ppb (28) 0.12 ppb (1) 2.0 μg/m3 (2) 2.0 μg/m3 (8) 28.0
 
Jan. 15, 2019, 7 p.m. N/A N/A 2.1 ppb (2) N/A N/A 1.0 ppb (1) 37.0 ppb (28) 0.16 ppb (2) 5.0 μg/m3 (5) 4.0 μg/m3 (17) 28.0
 
Jan. 15, 2019, 6 p.m. N/A N/A 2.3 ppb (2) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.16 ppb (2) 6.0 μg/m3 (5) 4.0 μg/m3 (17) 29.0
 
Jan. 15, 2019, 5 p.m. N/A N/A 2.8 ppb (3) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.15 ppb (2) 6.0 μg/m3 (5) 5.0 μg/m3 (21) 29.0
 
Jan. 15, 2019, 4 p.m. N/A N/A 3.5 ppb (3) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.16 ppb (2) 7.0 μg/m3 (6) 3.0 μg/m3 (12) 28.0
 
Jan. 15, 2019, 3 p.m. N/A N/A 4.0 ppb (4) N/A N/A 1.0 ppb (1) 36.0 ppb (28) 0.16 ppb (2) 8.0 μg/m3 (7) 1.0 μg/m3 (4) 28.0
 
Jan. 15, 2019, 2 p.m. N/A N/A 4.3 ppb (4) N/A N/A 1.0 ppb (1) 35.0 ppb (27) 0.13 ppb (1) 9.0 μg/m3 (8) 2.0 μg/m3 (8) 27.0
 
Jan. 15, 2019, 1 p.m. N/A N/A 3.9 ppb (4) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.18 ppb (2) 7.0 μg/m3 (6) 2.0 μg/m3 (8) 25.0
 
Jan. 15, 2019, noon N/A N/A 3.5 ppb (3) N/A N/A 1.0 ppb (1) 34.0 ppb (26) 0.16 ppb (2) 4.0 μg/m3 (4) 4.0 μg/m3 (17) 26.0
 
Jan. 15, 2019, 11 a.m. N/A N/A 3.6 ppb (3) N/A N/A 1.0 ppb (1) 34.0 ppb (26) 0.16 ppb (2) 4.0 μg/m3 (4) 7.0 μg/m3 (29) 29.0
 
Jan. 15, 2019, 10 a.m. N/A N/A 4.4 ppb (4) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.16 ppb (2) 5.0 μg/m3 (5) 5.0 μg/m3 (21) 27.0
 
Jan. 15, 2019, 9 a.m. N/A N/A 5.3 ppb (5) N/A N/A 1.0 ppb (1) 33.0 ppb (25) 0.17 ppb (2) 5.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2019, 8 a.m. N/A N/A 5.8 ppb (5) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.14 ppb (2) 3.0 μg/m3 (3) 7.0 μg/m3 (29) 29.0
 
Jan. 15, 2019, 7 a.m. N/A N/A 6.1 ppb (6) N/A N/A 1.0 ppb (1) 29.0 ppb (22) 0.19 ppb (2) 5.0 μg/m3 (5) 8.0 μg/m3 (33) 33.0
 
Jan. 15, 2019, 6 a.m. N/A N/A 6.3 ppb (6) N/A N/A 1.0 ppb (1) 30.0 ppb (23) 0.18 ppb (2) 5.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2019, 5 a.m. N/A N/A 6.7 ppb (6) N/A N/A 1.0 ppb (1) 29.0 ppb (22) 0.19 ppb (2) 5.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2019, 4 a.m. N/A N/A 7.7 ppb (7) N/A N/A 1.0 ppb (1) 27.0 ppb (21) 0.2 ppb (2) 7.0 μg/m3 (6) 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2019, 3 a.m. N/A N/A 7.4 ppb (7) N/A N/A 1.0 ppb (1) 26.0 ppb (20) 0.2 ppb (2) 10.0 μg/m3 (9) 8.0 μg/m3 (33) 33.0
 
Jan. 15, 2019, 2 a.m. N/A N/A 6.5 ppb (6) N/A N/A 1.0 ppb (1) 25.0 ppb (19) 0.16 ppb (2) 7.0 μg/m3 (6) 8.0 μg/m3 (33) 33.0
 
Jan. 15, 2019, 1 a.m. N/A N/A 6.3 ppb (6) N/A N/A 1.0 ppb (1) 29.0 ppb (22) 0.2 ppb (2) 9.0 μg/m3 (8) 8.0 μg/m3 (33) 33.0
 
Jan. 15, 2019, midnight N/A N/A 6.7 ppb (6) N/A N/A 1.0 ppb (1) 29.0 ppb (22) 0.2 ppb (2) 10.0 μg/m3 (9) 2.0 μg/m3 (8) 22.0
 
Jan. 14, 2019, 11 p.m. N/A N/A 6.6 ppb (6) N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.2 ppb (2) 8.0 μg/m3 (7) 2.0 μg/m3 (8) 20.0
 
Jan. 14, 2019, 10 p.m. N/A N/A 5.4 ppb (5) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.18 ppb (2) 7.0 μg/m3 (6) 4.0 μg/m3 (17) 23.0
 
Jan. 14, 2019, 9 p.m. N/A N/A 4.5 ppb (4) N/A N/A 1.0 ppb (1) 36.0 ppb (28) 0.19 ppb (2) 11.0 μg/m3 (10) 4.0 μg/m3 (17) 28.0
 
Jan. 14, 2019, 8 p.m. N/A N/A 4.9 ppb (5) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.18 ppb (2) 6.0 μg/m3 (5) 4.0 μg/m3 (17) 29.0
 
Jan. 14, 2019, 7 p.m. N/A N/A 6.2 ppb (6) N/A N/A 1.0 ppb (1) 37.0 ppb (28) 0.17 ppb (2) 10.0 μg/m3 (9) 5.0 μg/m3 (21) 28.0
 
Jan. 14, 2019, 6 p.m. N/A N/A 8.6 ppb (8) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.19 ppb (2) 16.0 μg/m3 (15) 5.0 μg/m3 (21) 26.0
 
Jan. 14, 2019, 5 p.m. N/A N/A 8.4 ppb (8) N/A N/A 1.0 ppb (1) 34.0 ppb (26) 0.19 ppb (2) 11.0 μg/m3 (10) 4.0 μg/m3 (17) 26.0
 
Jan. 14, 2019, 4 p.m. N/A N/A 10.7 ppb (10) N/A N/A 1.0 ppb (1) 32.0 ppb (25) 0.2 ppb (2) 12.0 μg/m3 (11) 3.0 μg/m3 (12) 25.0
 
Jan. 14, 2019, 3 p.m. N/A N/A 13.3 ppb (12) N/A N/A 1.0 ppb (1) 28.0 ppb (22) 0.24 ppb (3) 16.0 μg/m3 (15) 5.0 μg/m3 (21) 22.0
 
Jan. 14, 2019, 2 p.m. N/A N/A 13.5 ppb (12) N/A N/A N/A 26.0 ppb (20) 0.19 ppb (2) 16.0 μg/m3 (15) 7.0 μg/m3 (29) 29.0
 
Jan. 14, 2019, 1 p.m. N/A N/A 9.4 ppb (9) N/A N/A N/A 26.0 ppb (20) 0.23 ppb (3) 13.0 μg/m3 (12) 9.0 μg/m3 (38) 38.0
 
Jan. 14, 2019, noon N/A N/A 8.4 ppb (8) N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.21 ppb (2) 8.0 μg/m3 (7) 8.0 μg/m3 (33) 33.0
 
Jan. 14, 2019, 11 a.m. N/A N/A 8.6 ppb (8) N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.2 ppb (2) 6.0 μg/m3 (5) 5.0 μg/m3 (21) 21.0
 
Jan. 14, 2019, 10 a.m. N/A N/A 8.1 ppb (8) N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.2 ppb (2) 7.0 μg/m3 (6) 7.0 μg/m3 (29) 29.0
 
Jan. 14, 2019, 9 a.m. N/A N/A 6.1 ppb (6) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.18 ppb (2) 9.0 μg/m3 (8) 7.0 μg/m3 (29) 29.0
 
Jan. 14, 2019, 8 a.m. N/A N/A 5.5 ppb (5) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.15 ppb (2) 8.0 μg/m3 (7) 4.0 μg/m3 (17) 22.0
 
Jan. 14, 2019, 7 a.m. N/A N/A 5.9 ppb (5) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.2 ppb (2) 7.0 μg/m3 (6) 5.0 μg/m3 (21) 23.0
 
Jan. 14, 2019, 6 a.m. N/A N/A 9.6 ppb (9) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.21 ppb (2) 9.0 μg/m3 (8) 7.0 μg/m3 (29) 29.0
 
Jan. 14, 2019, 5 a.m. N/A N/A 9.9 ppb (9) N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.24 ppb (3) 10.0 μg/m3 (9) 9.0 μg/m3 (38) 38.0
 
Jan. 14, 2019, 4 a.m. N/A N/A 9.4 ppb (9) N/A N/A 1.0 ppb (1) 25.0 ppb (19) 0.24 ppb (3) 9.0 μg/m3 (8) 6.0 μg/m3 (25) 25.0
 
Jan. 14, 2019, 3 a.m. N/A N/A 9.8 ppb (9) N/A N/A 1.0 ppb (1) 26.0 ppb (20) 0.23 ppb (3) 9.0 μg/m3 (8) 6.0 μg/m3 (25) 25.0
 
Jan. 14, 2019, 2 a.m. N/A N/A 10.4 ppb (10) N/A N/A 1.0 ppb (1) 22.0 ppb (17) 0.2 ppb (2) 13.0 μg/m3 (12) 9.0 μg/m3 (38) 38.0
 
Jan. 14, 2019, 1 a.m. N/A N/A 10.0 ppb (9) N/A N/A 0.0 ppb (0) 22.0 ppb (17) 0.29 ppb (3) 18.0 μg/m3 (16) 9.0 μg/m3 (38) 38.0
 
Jan. 14, 2019, midnight N/A N/A 7.5 ppb (7) N/A N/A 0.0 ppb (0) 24.0 ppb (18) 0.26 ppb (3) 6.0 μg/m3 (5) 8.0 μg/m3 (33) 33.0
 
Jan. 13, 2019, 11 p.m. N/A N/A 5.1 ppb (5) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.2 ppb (2) 3.0 μg/m3 (3) 10.0 μg/m3 (42) 42.0
 
Jan. 13, 2019, 10 p.m. N/A N/A 6.3 ppb (6) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.17 ppb (2) 2.0 μg/m3 (2) 4.0 μg/m3 (17) 24.0
 
Jan. 13, 2019, 9 p.m. N/A N/A 3.8 ppb (4) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.15 ppb (2) 4.0 μg/m3 (4) 4.0 μg/m3 (17) 28.0
 
Jan. 13, 2019, 8 p.m. N/A N/A 4.1 ppb (4) N/A N/A 0.0 ppb (0) N/A 0.13 ppb (1) 6.0 μg/m3 (5) 5.0 μg/m3 (21) 21.0
 
Jan. 13, 2019, 7 p.m. N/A N/A 4.3 ppb (4) N/A N/A 0.0 ppb (0) 38.0 ppb (29) N/A 8.0 μg/m3 (7) 5.0 μg/m3 (21) 29.0
 
Jan. 13, 2019, 6 p.m. N/A N/A 4.5 ppb (4) N/A N/A N/A 38.0 ppb (29) 0.16 ppb (2) 3.0 μg/m3 (3) 5.0 μg/m3 (21) 29.0
 
Jan. 13, 2019, 5 p.m. N/A N/A 4.8 ppb (4) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.16 ppb (2) 6.0 μg/m3 (5) 6.0 μg/m3 (25) 28.0
 
Jan. 13, 2019, 4 p.m. N/A N/A 5.0 ppb (5) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.16 ppb (2) 10.0 μg/m3 (9) 3.0 μg/m3 (12) 28.0
 
Jan. 13, 2019, 3 p.m. N/A N/A 4.9 ppb (5) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.16 ppb (2) 12.0 μg/m3 (11) 4.0 μg/m3 (17) 26.0
 
Jan. 13, 2019, 2 p.m. N/A N/A 4.7 ppb (4) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.12 ppb (1) 5.0 μg/m3 (5) 8.0 μg/m3 (33) 33.0
 
Jan. 13, 2019, 1 p.m. N/A N/A 3.8 ppb (4) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.15 ppb (2) 2.0 μg/m3 (2) 12.0 μg/m3 (50) 50.0
 
Jan. 13, 2019, noon N/A N/A 2.9 ppb (3) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.15 ppb (2) 3.0 μg/m3 (3) 6.0 μg/m3 (25) 25.0
 
Jan. 13, 2019, 11 a.m. N/A N/A 2.6 ppb (2) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.15 ppb (2) 3.0 μg/m3 (3) 4.0 μg/m3 (17) 26.0
 
Jan. 13, 2019, 10 a.m. N/A N/A 2.4 ppb (2) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.15 ppb (2) 3.0 μg/m3 (3) 3.0 μg/m3 (12) 27.0
 
Jan. 13, 2019, 9 a.m. N/A N/A 2.1 ppb (2) N/A N/A 0.0 ppb (0) N/A 0.13 ppb (1) 2.0 μg/m3 (2) 2.0 μg/m3 (8) 8.0
 
Jan. 13, 2019, 8 a.m. N/A N/A 1.9 ppb (2) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.11 ppb (1) 3.0 μg/m3 (3) 0.0 μg/m3 (0) 28.0
 
Jan. 13, 2019, 7 a.m. N/A N/A 1.7 ppb (2) N/A N/A 0.0 ppb (0) 37.0 ppb (28) N/A 2.0 μg/m3 (2) -1.0 μg/m3 (0) 28.0
 
Jan. 13, 2019, 6 a.m. N/A N/A 1.6 ppb (1) N/A N/A N/A 38.0 ppb (29) 0.14 ppb (2) 2.0 μg/m3 (2) 1.0 μg/m3 (4) 29.0
 
Jan. 13, 2019, 5 a.m. N/A N/A 1.7 ppb (2) N/A N/A N/A 38.0 ppb (29) 0.14 ppb (2) 3.0 μg/m3 (3) 3.0 μg/m3 (12) 29.0
 
Jan. 13, 2019, 4 a.m. N/A N/A 1.8 ppb (2) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.14 ppb (2) 7.0 μg/m3 (6) 4.0 μg/m3 (17) 29.0
 
Jan. 13, 2019, 3 a.m. N/A N/A 1.6 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.15 ppb (2) 8.0 μg/m3 (7) 6.0 μg/m3 (25) 28.0
 
Jan. 13, 2019, 2 a.m. N/A N/A 1.4 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.12 ppb (1) 4.0 μg/m3 (4) 5.0 μg/m3 (21) 29.0
 
Jan. 13, 2019, 1 a.m. N/A N/A 1.2 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.14 ppb (2) 4.0 μg/m3 (4) 6.0 μg/m3 (25) 29.0
 
Jan. 13, 2019, midnight N/A N/A 1.2 ppb (1) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.14 ppb (2) 2.0 μg/m3 (2) 4.0 μg/m3 (17) 30.0
 
Jan. 12, 2019, 11 p.m. N/A N/A 1.1 ppb (1) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.13 ppb (1) 4.0 μg/m3 (4) 3.0 μg/m3 (12) 31.0
 
Jan. 12, 2019, 10 p.m. N/A N/A 1.0 ppb (1) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.13 ppb (1) 6.0 μg/m3 (5) 3.0 μg/m3 (12) 31.0
 
Jan. 12, 2019, 9 p.m. N/A N/A 1.0 ppb (1) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.12 ppb (1) 2.0 μg/m3 (2) 4.0 μg/m3 (17) 31.0
 
Jan. 12, 2019, 8 p.m. N/A N/A 1.1 ppb (1) N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.1 ppb (1) 4.0 μg/m3 (4) 6.0 μg/m3 (25) 32.0
 
Jan. 12, 2019, 7 p.m. N/A N/A 1.1 ppb (1) N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.14 ppb (2) 5.0 μg/m3 (5) 2.0 μg/m3 (8) 32.0
 
Jan. 12, 2019, 6 p.m. N/A N/A 1.2 ppb (1) N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.13 ppb (1) -1.0 μg/m3 (0) 1.0 μg/m3 (4) 32.0
 
Jan. 12, 2019, 5 p.m. N/A N/A 1.3 ppb (1) N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.13 ppb (1) 1.0 μg/m3 (1) -1.0 μg/m3 (0) 32.0