ID: 485

AQSQID: 250250042

Site Name: Boston - Roxbury

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

Updated: Oct. 20, 2021, 1:04 a.m.

Location: Roxbury (Roxbury), MA

Reporting: True, Located: True

Current AQI: 25.0

Roxbury (Roxbury) MA, US: 42.329399, -71.082497

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Oct. 19, 2021, 11 p.m. 7.0 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 27.0 ppb (25) 0.24 ppb (3) N/A N/A 25.0
 
Oct. 19, 2021, 10 p.m. 8.0 ppb (8) 2.0 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 27.0 ppb (25) 0.27 ppb (4) N/A -4.0 μg/m3 (0) 25.0
 
Oct. 19, 2021, 9 p.m. 7.0 ppb (7) 2.0 ppb (2) 8.9 ppb (9) 6.0 ppb (6) N/A 0.0 ppb (0) 28.0 ppb (26) 0.24 ppb (3) N/A -2.0 μg/m3 (0) 26.0
 
Oct. 19, 2021, 8 p.m. 5.0 ppb (5) 2.0 ppb (2) 6.7 ppb (7) 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (30) 0.2 ppb (3) N/A -1.0 μg/m3 (0) 30.0
 
Oct. 19, 2021, 7 p.m. 9.0 ppb (9) 4.0 ppb (4) 10.7 ppb (11) 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (29) 0.17 ppb (3) N/A -3.0 μg/m3 (0) 29.0
 
Oct. 19, 2021, 6 p.m. 6.0 ppb (6) 3.0 ppb (3) 8.1 ppb (8) 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (29) 0.19 ppb (3) N/A -2.0 μg/m3 (0) 29.0
 
Oct. 19, 2021, 5 p.m. 8.0 ppb (8) 4.0 ppb (4) 10.2 ppb (10) 4.0 ppb (4) N/A 0.0 ppb (0) 29.0 ppb (27) 0.17 ppb (3) N/A 1.0 μg/m3 (5) 27.0
 
Oct. 19, 2021, 4 p.m. 6.0 ppb (6) 3.0 ppb (3) 7.5 ppb (8) 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (25) 0.17 ppb (3) N/A 2.0 μg/m3 (9) 25.0
 
Oct. 19, 2021, 3 p.m. 8.0 ppb (8) 5.0 ppb (5) 9.5 ppb (9) 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (21) 0.17 ppb (3) N/A 1.0 μg/m3 (5) 21.0
 
Oct. 19, 2021, 2 p.m. 9.0 ppb (9) 6.0 ppb (6) 10.9 ppb (11) 4.0 ppb (4) N/A 0.0 ppb (0) 18.0 ppb (17) 0.17 ppb (3) N/A -1.0 μg/m3 (0) 17.0
 
Oct. 19, 2021, 1 p.m. 9.0 ppb (9) 5.0 ppb (5) 10.5 ppb (10) 3.0 ppb (3) N/A 0.0 ppb (0) 14.0 ppb (13) 0.19 ppb (3) N/A -1.0 μg/m3 (0) 13.0
 
Oct. 19, 2021, noon 14.0 ppb (14) 8.0 ppb (8) 16.0 ppb (16) 6.0 ppb (6) N/A 0.0 ppb (0) 9.0 ppb (9) 0.22 ppb (3) N/A 0.0 μg/m3 (0) 16.0
 
Oct. 19, 2021, 11 a.m. 16.0 ppb (16) 7.0 ppb (7) 17.6 ppb (17) 9.0 ppb (9) N/A 0.0 ppb (0) 6.0 ppb (6) 0.24 ppb (3) N/A 1.0 μg/m3 (5) 17.0
 
Oct. 19, 2021, 10 a.m. 17.0 ppb (17) 8.0 ppb (8) 20.1 ppb (19) 10.0 ppb (10) N/A 0.0 ppb (0) 6.0 ppb (6) 0.25 ppb (3) N/A 0.0 μg/m3 (0) 19.0
 
Oct. 19, 2021, 9 a.m. 7.0 ppb (7) 3.0 ppb (3) 8.5 ppb (9) 4.0 ppb (4) N/A 0.0 ppb (0) 11.0 ppb (11) 0.18 ppb (3) N/A N/A 11.0
 
Oct. 19, 2021, 8 a.m. 3.0 ppb (3) 1.0 ppb (1) 4.9 ppb (5) 2.0 ppb (2) N/A 0.0 ppb (0) 13.0 ppb (13) 0.16 ppb (3) N/A -3.0 μg/m3 (0) 13.0
 
Oct. 19, 2021, 7 a.m. 2.0 ppb (2) 1.0 ppb (1) 4.1 ppb (4) 1.0 ppb (1) N/A 0.0 ppb (0) 13.0 ppb (13) 0.15 ppb (2) N/A 0.0 μg/m3 (0) 13.0
 
Oct. 19, 2021, 6 a.m. 7.0 ppb (7) 3.0 ppb (3) 8.5 ppb (9) 4.0 ppb (4) N/A 0.0 ppb (0) 11.0 ppb (11) 0.16 ppb (3) N/A 0.0 μg/m3 (0) 11.0
 
Oct. 19, 2021, 5 a.m. 8.0 ppb (8) 3.0 ppb (3) 9.1 ppb (9) 4.0 ppb (4) N/A 0.0 ppb (0) 10.0 ppb (10) 0.15 ppb (2) N/A -1.0 μg/m3 (0) 10.0
 
Oct. 19, 2021, 4 a.m. 18.0 ppb (17) 10.0 ppb (10) 20.8 ppb (20) 8.0 ppb (8) N/A 0.0 ppb (0) 6.0 ppb (6) 0.16 ppb (3) N/A -3.0 μg/m3 (0) 20.0
 
Oct. 19, 2021, 3 a.m. 12.0 ppb (12) 5.0 ppb (5) 14.2 ppb (14) 7.0 ppb (7) N/A 0.0 ppb (0) 10.0 ppb (10) 0.18 ppb (3) N/A -2.0 μg/m3 (0) 14.0
 
Oct. 19, 2021, 2 a.m. 15.0 ppb (15) 7.0 ppb (7) 16.4 ppb (16) 8.0 ppb (8) N/A 0.0 ppb (0) 9.0 ppb (9) 0.18 ppb (3) N/A 0.0 μg/m3 (0) 16.0
 
Oct. 19, 2021, 1 a.m. 16.0 ppb (16) 7.0 ppb (7) 18.3 ppb (18) 9.0 ppb (9) N/A 0.0 ppb (0) 10.0 ppb (10) 0.17 ppb (3) N/A -1.0 μg/m3 (0) 18.0
 
Oct. 19, 2021, midnight 12.0 ppb (12) 5.0 ppb (5) 14.1 ppb (14) 6.0 ppb (6) N/A 0.0 ppb (0) 14.0 ppb (13) 0.16 ppb (3) N/A -1.0 μg/m3 (0) 14.0
 
Oct. 18, 2021, 11 p.m. 13.0 ppb (13) 5.0 ppb (5) 14.9 ppb (15) 8.0 ppb (8) N/A 0.0 ppb (0) 15.0 ppb (14) 0.18 ppb (3) N/A -2.0 μg/m3 (0) 15.0
 
Oct. 18, 2021, 10 p.m. 8.0 ppb (8) 3.0 ppb (3) 10.5 ppb (10) 5.0 ppb (5) N/A 0.0 ppb (0) 21.0 ppb (20) 0.17 ppb (3) N/A -3.0 μg/m3 (0) 20.0
 
Oct. 18, 2021, 9 p.m. 12.0 ppb (12) 4.0 ppb (4) 12.8 ppb (13) 7.0 ppb (7) N/A 0.0 ppb (0) 21.0 ppb (20) 0.18 ppb (3) N/A -2.0 μg/m3 (0) 20.0
 
Oct. 18, 2021, 8 p.m. 13.0 ppb (13) 5.0 ppb (5) 15.2 ppb (15) 8.0 ppb (8) N/A 0.0 ppb (0) 22.0 ppb (21) 0.18 ppb (3) N/A 0.0 μg/m3 (0) 21.0
 
Oct. 18, 2021, 7 p.m. 10.0 ppb (10) 4.0 ppb (4) 10.8 ppb (11) 6.0 ppb (6) N/A 0.0 ppb (0) 24.0 ppb (23) 0.19 ppb (3) N/A 2.0 μg/m3 (9) 23.0
 
Oct. 18, 2021, 6 p.m. 6.0 ppb (6) 3.0 ppb (3) 7.8 ppb (8) 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (25) 0.18 ppb (3) N/A 2.0 μg/m3 (9) 25.0
 
Oct. 18, 2021, 5 p.m. 10.0 ppb (10) 5.0 ppb (5) 11.1 ppb (11) 5.0 ppb (5) N/A 0.0 ppb (0) 24.0 ppb (23) 0.17 ppb (3) N/A 2.0 μg/m3 (9) 23.0
 
Oct. 18, 2021, 4 p.m. 8.0 ppb (8) 4.0 ppb (4) 10.0 ppb (10) 4.0 ppb (4) N/A 0.0 ppb (0) 23.0 ppb (22) 0.22 ppb (3) N/A 2.0 μg/m3 (9) 22.0
 
Oct. 18, 2021, 3 p.m. 8.0 ppb (8) 5.0 ppb (5) 10.4 ppb (10) 4.0 ppb (4) N/A 0.0 ppb (0) 23.0 ppb (22) 0.22 ppb (3) N/A 0.0 μg/m3 (0) 22.0
 
Oct. 18, 2021, 2 p.m. 9.0 ppb (9) 5.0 ppb (5) 11.6 ppb (11) 4.0 ppb (4) N/A 0.0 ppb (0) 22.0 ppb (21) 0.18 ppb (3) N/A -2.0 μg/m3 (0) 21.0
 
Oct. 18, 2021, 1 p.m. 15.0 ppb (15) 8.0 ppb (8) 16.6 ppb (16) 7.0 ppb (7) N/A 0.0 ppb (0) 18.0 ppb (17) 0.18 ppb (3) N/A -3.0 μg/m3 (0) 17.0
 
Oct. 18, 2021, noon 12.0 ppb (12) 5.0 ppb (5) 13.7 ppb (13) 7.0 ppb (7) N/A 0.0 ppb (0) 17.0 ppb (16) 0.2 ppb (3) N/A 0.0 μg/m3 (0) 16.0
 
Oct. 18, 2021, 11 a.m. 12.0 ppb (12) 4.0 ppb (4) 14.3 ppb (14) 8.0 ppb (8) N/A 0.0 ppb (0) 13.0 ppb (13) 0.21 ppb (3) N/A 1.0 μg/m3 (5) 14.0
 
Oct. 18, 2021, 10 a.m. 11.0 ppb (11) 4.0 ppb (4) 14.6 ppb (14) 8.0 ppb (8) N/A 0.0 ppb (0) 12.0 ppb (12) 0.2 ppb (3) N/A -2.0 μg/m3 (0) 14.0
 
Oct. 18, 2021, 9 a.m. 5.0 ppb (5) 2.0 ppb (2) 7.1 ppb (7) 4.0 ppb (4) N/A 0.0 ppb (0) 15.0 ppb (14) 0.17 ppb (3) N/A -4.0 μg/m3 (0) 14.0
 
Oct. 18, 2021, 8 a.m. 7.0 ppb (7) 2.0 ppb (2) 8.6 ppb (9) 5.0 ppb (5) N/A 0.0 ppb (0) 15.0 ppb (14) 0.15 ppb (2) N/A -4.0 μg/m3 (0) 14.0
 
Oct. 18, 2021, 7 a.m. 15.0 ppb (15) 6.0 ppb (6) 17.3 ppb (17) 9.0 ppb (9) N/A 0.0 ppb (0) 12.0 ppb (12) 0.15 ppb (2) N/A -4.0 μg/m3 (0) 17.0
 
Oct. 18, 2021, 6 a.m. 11.0 ppb (11) 4.0 ppb (4) 13.4 ppb (13) 7.0 ppb (7) N/A 0.0 ppb (0) 14.0 ppb (13) 0.16 ppb (3) N/A -3.0 μg/m3 (0) 13.0
 
Oct. 18, 2021, 5 a.m. 2.0 ppb (2) 1.0 ppb (1) 4.1 ppb (4) 2.0 ppb (2) N/A 0.0 ppb (0) 20.0 ppb (19) 0.16 ppb (3) N/A -1.0 μg/m3 (0) 19.0
 
Oct. 18, 2021, 4 a.m. 3.0 ppb (3) 1.0 ppb (1) 5.2 ppb (5) 3.0 ppb (3) N/A 0.0 ppb (0) 20.0 ppb (19) 0.17 ppb (3) N/A -2.0 μg/m3 (0) 19.0
 
Oct. 18, 2021, 3 a.m. 3.0 ppb (3) 1.0 ppb (1) 5.3 ppb (5) 3.0 ppb (3) N/A 0.0 ppb (0) 20.0 ppb (19) 0.19 ppb (3) N/A -1.0 μg/m3 (0) 19.0
 
Oct. 18, 2021, 2 a.m. 3.0 ppb (3) 1.0 ppb (1) 5.0 ppb (5) 2.0 ppb (2) N/A 0.0 ppb (0) 20.0 ppb (19) 0.21 ppb (3) N/A 1.0 μg/m3 (5) 19.0
 
Oct. 18, 2021, 1 a.m. 3.0 ppb (3) 1.0 ppb (1) 4.8 ppb (5) 2.0 ppb (2) N/A 0.0 ppb (0) 20.0 ppb (19) 0.22 ppb (3) N/A -2.0 μg/m3 (0) 19.0
 
Oct. 18, 2021, midnight 4.0 ppb (4) 1.0 ppb (1) 5.9 ppb (6) 3.0 ppb (3) N/A 0.0 ppb (0) 20.0 ppb (19) 0.23 ppb (3) N/A N/A 19.0
 
Oct. 17, 2021, 11 p.m. 4.0 ppb (4) 1.0 ppb (1) 5.8 ppb (6) 3.0 ppb (3) N/A 0.0 ppb (0) 20.0 ppb (19) 0.24 ppb (3) N/A N/A 19.0
 
Oct. 17, 2021, 10 p.m. 6.0 ppb (6) 1.0 ppb (1) 8.1 ppb (8) 5.0 ppb (5) N/A 0.0 ppb (0) 21.0 ppb (20) 0.28 ppb (4) N/A -3.0 μg/m3 (0) 20.0
 
Oct. 17, 2021, 9 p.m. 12.0 ppb (12) 3.0 ppb (3) 14.6 ppb (14) 8.0 ppb (8) N/A 0.0 ppb (0) 20.0 ppb (19) 0.23 ppb (3) N/A -2.0 μg/m3 (0) 19.0
 
Oct. 17, 2021, 3 p.m. 2.0 ppb (2) 2.0 ppb (2) 4.5 ppb (5) 1.0 ppb (1) N/A 0.0 ppb (0) 28.0 ppb (26) 0.13 ppb (2) N/A N/A 26.0
 
Oct. 17, 2021, 2 p.m. 8.0 ppb (8) 4.0 ppb (4) 9.3 ppb (9) 4.0 ppb (4) N/A 0.0 ppb (0) 25.0 ppb (24) 0.13 ppb (2) N/A N/A 24.0
 
Oct. 17, 2021, 1 p.m. 11.0 ppb (11) 5.0 ppb (5) 14.1 ppb (14) 6.0 ppb (6) N/A 0.0 ppb (0) 22.0 ppb (21) 0.13 ppb (2) N/A N/A 21.0
 
Oct. 17, 2021, noon 7.0 ppb (7) 3.0 ppb (3) 8.9 ppb (9) 4.0 ppb (4) N/A 0.0 ppb (0) 23.0 ppb (22) 0.14 ppb (2) N/A -3.0 μg/m3 (0) 22.0
 
Oct. 17, 2021, 11 a.m. 2.0 ppb (2) 1.0 ppb (1) 4.0 ppb (4) 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (25) 0.14 ppb (2) N/A N/A 25.0
 
Oct. 17, 2021, 10 a.m. 2.0 ppb (2) 1.0 ppb (1) 3.5 ppb (4) 1.0 ppb (1) N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A -4.0 μg/m3 (0) 25.0
 
Oct. 17, 2021, 9 a.m. 2.0 ppb (2) 1.0 ppb (1) 3.1 ppb (3) 1.0 ppb (1) N/A 0.0 ppb (0) 28.0 ppb (26) 0.14 ppb (2) N/A 0.0 μg/m3 (0) 26.0
 
Oct. 17, 2021, 8 a.m. 3.0 ppb (3) 1.0 ppb (1) 4.3 ppb (5) 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.13 ppb (2) N/A -2.0 μg/m3 (0) 5.0
 
Oct. 17, 2021, 7 a.m. N/A N/A 4.8 ppb (5) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.13 ppb (2) N/A N/A 31.0
 
Oct. 17, 2021, 6 a.m. N/A N/A 10.9 ppb (11) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.13 ppb (2) N/A N/A 27.0
 
Oct. 17, 2021, 5 a.m. N/A N/A 13.8 ppb (14) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.13 ppb (2) N/A N/A 27.0
 
Oct. 17, 2021, 4 a.m. 11.0 ppb (11) 3.0 ppb (3) 13.9 ppb (14) 9.0 ppb (9) N/A N/A 28.0 ppb (26) 0.11 ppb (2) N/A -2.0 μg/m3 (0) 26.0
 
Oct. 17, 2021, 3 a.m. 9.0 ppb (9) 2.0 ppb (2) 12.0 ppb (12) 7.0 ppb (7) N/A N/A 29.0 ppb (27) 0.13 ppb (2) N/A 1.0 μg/m3 (5) 27.0
 
Oct. 17, 2021, 2 a.m. 1.0 ppb (1) 1.0 ppb (1) 3.1 ppb (3) 1.0 ppb (1) N/A N/A 37.0 ppb (35) 0.15 ppb (2) N/A 1.0 μg/m3 (5) 35.0
 
Oct. 17, 2021, 1 a.m. 1.0 ppb (1) 1.0 ppb (1) 3.1 ppb (3) 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (35) 0.14 ppb (2) N/A 3.0 μg/m3 (13) 35.0
 
Oct. 17, 2021, midnight 1.0 ppb (1) 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 38.0 ppb (36) 0.17 ppb (3) N/A 6.0 μg/m3 (25) 36.0
 
Oct. 16, 2021, 11 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (35) 0.19 ppb (3) N/A 6.0 μg/m3 (25) 35.0
 
Oct. 16, 2021, 10 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (35) 0.21 ppb (3) N/A 6.0 μg/m3 (25) 35.0
 
Oct. 16, 2021, 9 p.m. 2.0 ppb (2) 1.0 ppb (1) 4.1 ppb (4) 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (37) 0.2 ppb (3) N/A 3.0 μg/m3 (13) 37.0
 
Oct. 16, 2021, 8 p.m. 2.0 ppb (2) 1.0 ppb (1) 3.9 ppb (4) 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (38) 0.18 ppb (3) N/A 3.0 μg/m3 (13) 38.0
 
Oct. 16, 2021, 7 p.m. 2.0 ppb (2) 1.0 ppb (1) 4.2 ppb (4) 1.0 ppb (1) N/A 0.0 ppb (0) 38.0 ppb (36) 0.19 ppb (3) N/A 5.0 μg/m3 (21) 36.0
 
Oct. 16, 2021, 6 p.m. 2.0 ppb (2) 1.0 ppb (1) 4.0 ppb (4) 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (37) 0.19 ppb (3) N/A 4.0 μg/m3 (17) 37.0
 
Oct. 16, 2021, 5 p.m. 2.0 ppb (2) 1.0 ppb (1) 4.2 ppb (4) 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (39) 0.18 ppb (3) N/A 4.0 μg/m3 (17) 39.0
 
Oct. 16, 2021, 4 p.m. 2.0 ppb (2) 1.0 ppb (1) 4.5 ppb (5) 1.0 ppb (1) N/A 0.0 ppb (0) 44.0 ppb (41) 0.19 ppb (3) N/A 2.0 μg/m3 (9) 41.0
 
Oct. 16, 2021, 3 p.m. 2.0 ppb (2) 1.0 ppb (1) 4.4 ppb (5) 1.0 ppb (1) N/A 0.0 ppb (0) 47.0 ppb (44) 0.2 ppb (3) N/A 0.0 μg/m3 (0) 44.0
 
Oct. 16, 2021, 2 p.m. 3.0 ppb (3) 1.0 ppb (1) 5.0 ppb (5) 2.0 ppb (2) N/A 0.0 ppb (0) 43.0 ppb (40) 0.17 ppb (3) N/A 2.0 μg/m3 (9) 40.0
 
Oct. 16, 2021, 1 p.m. 2.0 ppb (2) 1.0 ppb (1) 4.7 ppb (5) 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (38) 0.17 ppb (3) N/A 5.0 μg/m3 (21) 38.0
 
Oct. 16, 2021, noon 3.0 ppb (3) 1.0 ppb (1) 5.2 ppb (5) 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (36) 0.18 ppb (3) N/A 5.0 μg/m3 (21) 36.0
 
Oct. 16, 2021, 11 a.m. 2.0 ppb (2) 1.0 ppb (1) 4.1 ppb (4) 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (35) 0.15 ppb (2) N/A 3.0 μg/m3 (13) 35.0
 
Oct. 16, 2021, 10 a.m. 1.0 ppb (1) 0.0 ppb (0) 3.5 ppb (4) 1.0 ppb (1) N/A 0.0 ppb (0) 36.0 ppb (34) 0.14 ppb (2) N/A 0.0 μg/m3 (0) 34.0
 
Oct. 16, 2021, 9 a.m. 1.0 ppb (1) 0.0 ppb (0) 2.9 ppb (3) 0.0 ppb (0) N/A 0.0 ppb (0) 37.0 ppb (35) 0.14 ppb (2) N/A 1.0 μg/m3 (5) 35.0
 
Oct. 16, 2021, 8 a.m. 1.0 ppb (1) 1.0 ppb (1) 3.3 ppb (4) 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (32) 0.13 ppb (2) N/A 1.0 μg/m3 (5) 32.0
 
Oct. 16, 2021, 7 a.m. 1.0 ppb (1) 0.0 ppb (0) 3.0 ppb (3) 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (32) 0.13 ppb (2) N/A 4.0 μg/m3 (17) 32.0
 
Oct. 16, 2021, 6 a.m. 1.0 ppb (1) 0.0 ppb (0) 3.3 ppb (4) 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (30) 0.15 ppb (2) N/A 8.0 μg/m3 (34) 34.0
 
Oct. 16, 2021, 5 a.m. 1.0 ppb (1) 0.0 ppb (0) 3.0 ppb (3) 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (30) 0.15 ppb (2) N/A 4.0 μg/m3 (17) 30.0
 
Oct. 16, 2021, 4 a.m. 3.0 ppb (3) 1.0 ppb (1) 4.6 ppb (5) 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (28) 0.16 ppb (3) N/A 6.0 μg/m3 (25) 28.0
 
Oct. 16, 2021, 3 a.m. 3.0 ppb (3) 1.0 ppb (1) 4.7 ppb (5) 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (28) 0.17 ppb (3) N/A 4.0 μg/m3 (17) 28.0
 
Oct. 16, 2021, 2 a.m. 3.0 ppb (3) 1.0 ppb (1) 5.0 ppb (5) 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (29) 0.16 ppb (3) N/A 4.0 μg/m3 (17) 29.0
 
Oct. 16, 2021, 1 a.m. 4.0 ppb (4) 1.0 ppb (1) 5.8 ppb (6) 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (29) 0.18 ppb (3) N/A 5.0 μg/m3 (21) 29.0
 
Oct. 16, 2021, midnight 4.0 ppb (4) 1.0 ppb (1) 5.5 ppb (6) 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (29) 0.25 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Oct. 15, 2021, 11 p.m. 4.0 ppb (4) 1.0 ppb (1) 6.4 ppb (7) 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (29) 0.25 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Oct. 15, 2021, 10 p.m. 5.0 ppb (5) 1.0 ppb (1) 7.1 ppb (7) 4.0 ppb (4) N/A 0.0 ppb (0) 33.0 ppb (31) 0.3 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Oct. 15, 2021, 9 p.m. 12.0 ppb (12) 2.0 ppb (2) 15.6 ppb (15) 11.0 ppb (11) N/A 0.0 ppb (0) 20.0 ppb (19) 0.36 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
Oct. 15, 2021, 8 p.m. 8.0 ppb (8) 2.0 ppb (2) 10.6 ppb (10) 6.0 ppb (6) N/A 0.0 ppb (0) 25.0 ppb (24) 0.26 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
Oct. 15, 2021, 7 p.m. 16.0 ppb (16) 4.0 ppb (4) 18.9 ppb (18) 12.0 ppb (12) N/A 0.0 ppb (0) 23.0 ppb (22) 0.26 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 15, 2021, 6 p.m. 21.0 ppb (20) 6.0 ppb (6) 24.7 ppb (24) 15.0 ppb (15) N/A 0.0 ppb (0) 20.0 ppb (19) 0.24 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Oct. 15, 2021, 5 p.m. 15.0 ppb (15) 5.0 ppb (5) 18.4 ppb (18) 10.0 ppb (10) N/A 0.0 ppb (0) 26.0 ppb (25) 0.23 ppb (3) N/A 5.0 μg/m3 (21) 25.0
 
Oct. 15, 2021, 4 p.m. 15.0 ppb (15) 5.0 ppb (5) 18.2 ppb (18) 10.0 ppb (10) N/A 0.0 ppb (0) 25.0 ppb (24) 0.23 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
Oct. 15, 2021, 3 p.m. 15.0 ppb (15) 5.0 ppb (5) 18.6 ppb (18) 10.0 ppb (10) N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 7.0 μg/m3 (30) 30.0
 
Oct. 15, 2021, 2 p.m. 15.0 ppb (15) 5.0 ppb (5) 17.9 ppb (17) 9.0 ppb (9) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 6.0 μg/m3 (25) 25.0
 
Oct. 15, 2021, 1 p.m. 14.0 ppb (14) 5.0 ppb (5) 15.9 ppb (15) 9.0 ppb (9) N/A 0.0 ppb (0) 21.0 ppb (20) 0.27 ppb (4) N/A 4.0 μg/m3 (17) 20.0
 
Oct. 15, 2021, noon 13.0 ppb (13) 3.0 ppb (3) 14.0 ppb (14) 9.0 ppb (9) N/A 0.0 ppb (0) 19.0 ppb (18) 0.24 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Oct. 15, 2021, 11 a.m. 24.0 ppb (23) 6.0 ppb (6) 25.9 ppb (25) 17.0 ppb (17) N/A 0.0 ppb (0) 7.0 ppb (7) 0.36 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Oct. 15, 2021, 10 a.m. 32.0 ppb (31) 11.0 ppb (11) 35.9 ppb (34) 21.0 ppb (20) N/A 0.0 ppb (0) 2.0 ppb (2) 0.38 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Oct. 15, 2021, 9 a.m. 25.0 ppb (24) 7.0 ppb (7) 26.7 ppb (26) 18.0 ppb (17) N/A 0.0 ppb (0) 4.0 ppb (4) 0.36 ppb (5) N/A 7.0 μg/m3 (30) 30.0
 
Oct. 15, 2021, 8 a.m. 20.0 ppb (19) 5.0 ppb (5) 23.1 ppb (22) 15.0 ppb (15) N/A 0.0 ppb (0) 7.0 ppb (7) 0.34 ppb (4) N/A 5.0 μg/m3 (21) 22.0
 
Oct. 15, 2021, 7 a.m. 15.0 ppb (15) 1.0 ppb (1) 17.1 ppb (17) 13.0 ppb (13) N/A 0.0 ppb (0) 10.0 ppb (10) 0.33 ppb (4) N/A 7.0 μg/m3 (30) 30.0
 
Oct. 15, 2021, 6 a.m. 20.0 ppb (19) 3.0 ppb (3) 23.0 ppb (22) 17.0 ppb (17) N/A 0.0 ppb (0) 8.0 ppb (8) 0.35 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
Oct. 15, 2021, 5 a.m. 28.0 ppb (27) 5.0 ppb (5) 31.7 ppb (30) 23.0 ppb (22) N/A 0.0 ppb (0) 2.0 ppb (2) 0.42 ppb (5) N/A 6.0 μg/m3 (25) 30.0
 
Oct. 15, 2021, 4 a.m. 26.0 ppb (25) 4.0 ppb (4) 30.0 ppb (29) 22.0 ppb (21) N/A 0.0 ppb (0) 3.0 ppb (3) 0.55 ppb (7) N/A 10.0 μg/m3 (42) 42.0
 
Oct. 15, 2021, 3 a.m. 28.0 ppb (27) 4.0 ppb (4) 32.3 ppb (31) 24.0 ppb (23) N/A 0.0 ppb (0) 3.0 ppb (3) 0.57 ppb (7) N/A 5.0 μg/m3 (21) 31.0
 
Oct. 15, 2021, 2 a.m. 30.0 ppb (29) 5.0 ppb (5) 34.0 ppb (33) 25.0 ppb (24) N/A 0.0 ppb (0) 5.0 ppb (5) 0.51 ppb (6) N/A 4.0 μg/m3 (17) 33.0
 
Oct. 15, 2021, 1 a.m. 34.0 ppb (33) 7.0 ppb (7) 38.4 ppb (37) 27.0 ppb (26) N/A 0.0 ppb (0) 3.0 ppb (3) 0.64 ppb (7) N/A 6.0 μg/m3 (25) 37.0
 
Oct. 15, 2021, midnight 37.0 ppb (35) 8.0 ppb (8) 42.2 ppb (40) 29.0 ppb (28) N/A 0.0 ppb (0) 3.0 ppb (3) 0.76 ppb (10) N/A 7.0 μg/m3 (30) 40.0
 
Oct. 14, 2021, 11 p.m. 23.0 ppb (22) 3.0 ppb (3) 27.9 ppb (27) 21.0 ppb (20) N/A 0.0 ppb (0) 11.0 ppb (11) 0.56 ppb (7) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 14, 2021, 10 p.m. 16.0 ppb (16) 1.0 ppb (1) 19.6 ppb (19) 14.0 ppb (14) N/A 0.0 ppb (0) 21.0 ppb (20) 0.34 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
Oct. 14, 2021, 9 p.m. 7.0 ppb (7) 1.0 ppb (1) 8.9 ppb (9) 6.0 ppb (6) N/A 0.0 ppb (0) 34.0 ppb (32) 0.26 ppb (4) N/A 7.0 μg/m3 (30) 32.0
 
Oct. 14, 2021, 8 p.m. 9.0 ppb (9) 2.0 ppb (2) 10.6 ppb (10) 6.0 ppb (6) N/A 0.0 ppb (0) 34.0 ppb (32) 0.23 ppb (3) N/A 2.0 μg/m3 (9) 32.0
 
Oct. 14, 2021, 7 p.m. 8.0 ppb (8) 2.0 ppb (2) 9.8 ppb (10) 6.0 ppb (6) N/A 0.0 ppb (0) 36.0 ppb (34) 0.23 ppb (3) N/A 0.0 μg/m3 (0) 34.0
 
Oct. 14, 2021, 6 p.m. 10.0 ppb (10) 3.0 ppb (3) 12.4 ppb (12) 7.0 ppb (7) N/A 0.0 ppb (0) 34.0 ppb (32) 0.23 ppb (3) N/A 1.0 μg/m3 (5) 32.0
 
Oct. 14, 2021, 5 p.m. 11.0 ppb (11) 3.0 ppb (3) 13.0 ppb (13) 8.0 ppb (8) N/A 0.0 ppb (0) 32.0 ppb (30) 0.21 ppb (3) N/A 4.0 μg/m3 (17) 30.0
 
Oct. 14, 2021, 4 p.m. 10.0 ppb (10) 3.0 ppb (3) 12.6 ppb (12) 7.0 ppb (7) N/A 0.0 ppb (0) 32.0 ppb (30) 0.2 ppb (3) N/A 5.0 μg/m3 (21) 30.0
 
Oct. 14, 2021, 3 p.m. 9.0 ppb (9) 3.0 ppb (3) 10.9 ppb (11) 6.0 ppb (6) N/A 0.0 ppb (0) 30.0 ppb (28) 0.19 ppb (3) N/A N/A 28.0
 
Oct. 14, 2021, 2 p.m. 11.0 ppb (11) 4.0 ppb (4) 13.8 ppb (14) 7.0 ppb (7) N/A 0.0 ppb (0) 23.0 ppb (22) 0.24 ppb (3) N/A 0.0 μg/m3 (0) 22.0
 
Oct. 14, 2021, 1 p.m. 16.0 ppb (16) 7.0 ppb (7) 18.6 ppb (18) 9.0 ppb (9) N/A 0.0 ppb (0) 14.0 ppb (13) 0.26 ppb (4) N/A 4.0 μg/m3 (17) 18.0
 
Oct. 14, 2021, noon 36.0 ppb (34) 21.0 ppb (20) 37.6 ppb (36) 15.0 ppb (15) N/A 0.0 ppb (0) 5.0 ppb (5) 0.35 ppb (4) N/A 7.0 μg/m3 (30) 36.0
 
Oct. 14, 2021, 11 a.m. 22.0 ppb (21) 10.0 ppb (10) 24.7 ppb (24) 13.0 ppb (13) N/A 0.0 ppb (0) 3.0 ppb (3) 0.28 ppb (4) N/A 5.0 μg/m3 (21) 24.0
 
Oct. 14, 2021, 10 a.m. 41.0 ppb (39) 24.0 ppb (23) 46.8 ppb (45) 17.0 ppb (17) N/A 1.0 ppb (2) 1.0 ppb (1) N/A N/A 1.0 μg/m3 (5) 45.0
 
Oct. 14, 2021, 9 a.m. 18.0 ppb (17) 9.0 ppb (9) 22.0 ppb (21) 10.0 ppb (10) N/A 0.0 ppb (0) 2.0 ppb (2) 0.34 ppb (4) N/A 0.0 μg/m3 (0) 21.0
 
Oct. 14, 2021, 8 a.m. 8.0 ppb (8) 1.0 ppb (1) 10.5 ppb (10) 7.0 ppb (7) N/A 0.0 ppb (0) N/A 0.26 ppb (4) N/A -1.0 μg/m3 (0) 10.0
 
Oct. 14, 2021, 7 a.m. N/A N/A 15.5 ppb (15) N/A N/A 0.0 ppb (0) 5.0 ppb (5) 0.27 ppb (4) N/A -1.0 μg/m3 (0) 15.0
 
Oct. 14, 2021, 6 a.m. N/A N/A 11.1 ppb (11) N/A N/A 0.0 ppb (0) 8.0 ppb (8) 0.26 ppb (4) N/A 0.0 μg/m3 (0) 11.0
 
Oct. 14, 2021, 5 a.m. N/A N/A 10.9 ppb (11) N/A N/A 0.0 ppb (0) 10.0 ppb (10) 0.27 ppb (4) N/A 3.0 μg/m3 (13) 13.0
 
Oct. 14, 2021, 4 a.m. 13.0 ppb (13) 2.0 ppb (2) 15.4 ppb (15) 11.0 ppb (11) N/A N/A 10.0 ppb (10) 0.31 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
Oct. 14, 2021, 3 a.m. 15.0 ppb (15) 2.0 ppb (2) 18.6 ppb (18) 13.0 ppb (13) N/A N/A 11.0 ppb (11) 0.39 ppb (5) N/A 1.0 μg/m3 (5) 18.0
 
Oct. 14, 2021, 2 a.m. 14.0 ppb (14) 1.0 ppb (1) 17.2 ppb (17) 13.0 ppb (13) N/A N/A 15.0 ppb (14) 0.34 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
Oct. 14, 2021, 1 a.m. 12.0 ppb (12) 1.0 ppb (1) 14.4 ppb (14) 11.0 ppb (11) N/A 0.0 ppb (0) 22.0 ppb (21) 0.31 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Oct. 14, 2021, midnight 13.0 ppb (13) 1.0 ppb (1) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 23.0 ppb (22) 0.34 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Oct. 13, 2021, 11 p.m. 11.0 ppb (11) 1.0 ppb (1) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 29.0 ppb (27) 0.34 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
Oct. 13, 2021, 10 p.m. 14.0 ppb (14) 1.0 ppb (1) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 30.0 ppb (28) 0.38 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
Oct. 13, 2021, 9 p.m. 7.0 ppb (7) 1.0 ppb (1) 9.2 ppb (9) 6.0 ppb (6) N/A 0.0 ppb (0) 44.0 ppb (41) 0.31 ppb (4) N/A 3.0 μg/m3 (13) 41.0
 
Oct. 13, 2021, 8 p.m. 5.0 ppb (5) 1.0 ppb (1) 7.2 ppb (7) 4.0 ppb (4) N/A 0.0 ppb (0) 48.0 ppb (45) 0.27 ppb (4) N/A 4.0 μg/m3 (17) 45.0
 
Oct. 13, 2021, 7 p.m. 6.0 ppb (6) 2.0 ppb (2) 9.5 ppb (9) 5.0 ppb (5) N/A 0.0 ppb (0) 46.0 ppb (43) 0.24 ppb (3) N/A 4.0 μg/m3 (17) 43.0
 
Oct. 13, 2021, 6 p.m. 5.0 ppb (5) 2.0 ppb (2) 7.6 ppb (8) 4.0 ppb (4) N/A 0.0 ppb (0) 46.0 ppb (43) 0.23 ppb (3) N/A 5.0 μg/m3 (21) 43.0
 
Oct. 13, 2021, 5 p.m. 5.0 ppb (5) 2.0 ppb (2) 7.5 ppb (8) 4.0 ppb (4) N/A 0.0 ppb (0) 43.0 ppb (40) 0.22 ppb (3) N/A 7.0 μg/m3 (30) 40.0
 
Oct. 13, 2021, 4 p.m. 7.0 ppb (7) 2.0 ppb (2) 8.9 ppb (9) 4.0 ppb (4) N/A 0.0 ppb (0) 39.0 ppb (37) 0.23 ppb (3) N/A 5.0 μg/m3 (21) 37.0
 
Oct. 13, 2021, 3 p.m. 8.0 ppb (8) 3.0 ppb (3) 10.4 ppb (10) 5.0 ppb (5) N/A 0.0 ppb (0) 36.0 ppb (34) 0.24 ppb (3) N/A 2.0 μg/m3 (9) 34.0
 
Oct. 13, 2021, 2 p.m. 13.0 ppb (13) 5.0 ppb (5) 15.9 ppb (15) 9.0 ppb (9) N/A 0.0 ppb (0) 28.0 ppb (26) 0.27 ppb (4) N/A 6.0 μg/m3 (25) 26.0
 
Oct. 13, 2021, 1 p.m. 26.0 ppb (25) 12.0 ppb (12) 29.0 ppb (28) 15.0 ppb (15) N/A 0.0 ppb (0) 13.0 ppb (13) 0.36 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Oct. 13, 2021, noon 25.0 ppb (24) 10.0 ppb (10) 27.2 ppb (26) 14.0 ppb (14) N/A 0.0 ppb (0) 9.0 ppb (9) 0.36 ppb (5) N/A 5.0 μg/m3 (21) 26.0
 
Oct. 13, 2021, 11 a.m. 31.0 ppb (30) 14.0 ppb (14) 35.4 ppb (34) 18.0 ppb (17) N/A 0.0 ppb (0) 3.0 ppb (3) 0.42 ppb (5) N/A -1.0 μg/m3 (0) 34.0
 
Oct. 13, 2021, 10 a.m. 32.0 ppb (31) 14.0 ppb (14) 37.7 ppb (36) 18.0 ppb (17) N/A 0.0 ppb (0) 2.0 ppb (2) 0.38 ppb (5) N/A 1.0 μg/m3 (5) 36.0
 
Oct. 13, 2021, 9 a.m. 19.0 ppb (18) 7.0 ppb (7) 22.9 ppb (22) 13.0 ppb (13) N/A 0.0 ppb (0) 2.0 ppb (2) 0.26 ppb (4) N/A 0.0 μg/m3 (0) 22.0
 
Oct. 13, 2021, 8 a.m. 6.0 ppb (6) 1.0 ppb (1) 8.6 ppb (9) 5.0 ppb (5) N/A 0.0 ppb (0) 9.0 ppb (9) 0.22 ppb (3) N/A 1.0 μg/m3 (5) 9.0
 
Oct. 13, 2021, 7 a.m. 7.0 ppb (7) 1.0 ppb (1) 9.3 ppb (9) 6.0 ppb (6) N/A 0.0 ppb (0) 10.0 ppb (10) 0.21 ppb (3) N/A 3.0 μg/m3 (13) 13.0
 
Oct. 13, 2021, 6 a.m. 10.0 ppb (10) 1.0 ppb (1) 12.1 ppb (12) 9.0 ppb (9) N/A 0.0 ppb (0) 10.0 ppb (10) 0.23 ppb (3) N/A 1.0 μg/m3 (5) 12.0
 
Oct. 13, 2021, 5 a.m. 14.0 ppb (14) 1.0 ppb (1) 16.6 ppb (16) 13.0 ppb (13) N/A 0.0 ppb (0) 9.0 ppb (9) 0.26 ppb (4) N/A 2.0 μg/m3 (9) 16.0
 
Oct. 13, 2021, 4 a.m. 15.0 ppb (15) 2.0 ppb (2) 17.5 ppb (17) 13.0 ppb (13) N/A 0.0 ppb (0) 10.0 ppb (10) 0.3 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
Oct. 13, 2021, 3 a.m. 14.0 ppb (14) 1.0 ppb (1) 16.8 ppb (16) 13.0 ppb (13) N/A 0.0 ppb (0) 14.0 ppb (13) 0.38 ppb (5) N/A 4.0 μg/m3 (17) 17.0
 
Oct. 13, 2021, 2 a.m. 17.0 ppb (17) 2.0 ppb (2) 19.8 ppb (19) 15.0 ppb (15) N/A 0.0 ppb (0) 16.0 ppb (15) 0.38 ppb (5) N/A 5.0 μg/m3 (21) 21.0
 
Oct. 13, 2021, 1 a.m. 15.0 ppb (15) 1.0 ppb (1) 18.3 ppb (18) 14.0 ppb (14) N/A 0.0 ppb (0) 18.0 ppb (17) 0.4 ppb (5) N/A 4.0 μg/m3 (17) 18.0
 
Oct. 13, 2021, midnight 24.0 ppb (23) 3.0 ppb (3) 27.0 ppb (26) 21.0 ppb (20) N/A 0.0 ppb (0) 17.0 ppb (16) 0.52 ppb (6) N/A 4.0 μg/m3 (17) 26.0
 
Oct. 12, 2021, 11 p.m. 42.0 ppb (40) 11.0 ppb (11) 44.4 ppb (42) 31.0 ppb (30) N/A 0.0 ppb (0) 4.0 ppb (4) 0.87 ppb (11) N/A 6.0 μg/m3 (25) 42.0
 
Oct. 12, 2021, 10 p.m. 27.0 ppb (26) 3.0 ppb (3) 31.2 ppb (30) 23.0 ppb (22) N/A 0.0 ppb (0) 14.0 ppb (13) 0.57 ppb (7) N/A 6.0 μg/m3 (25) 30.0
 
Oct. 12, 2021, 9 p.m. 9.0 ppb (9) 1.0 ppb (1) 11.6 ppb (11) 8.0 ppb (8) N/A 0.0 ppb (0) 36.0 ppb (34) 0.28 ppb (4) N/A 2.0 μg/m3 (9) 34.0
 
Oct. 12, 2021, 8 p.m. 6.0 ppb (6) 2.0 ppb (2) 7.2 ppb (7) 4.0 ppb (4) N/A 0.0 ppb (0) 41.0 ppb (38) 0.21 ppb (3) N/A 2.0 μg/m3 (9) 38.0
 
Oct. 12, 2021, 7 p.m. 4.0 ppb (4) 1.0 ppb (1) 6.1 ppb (6) 2.0 ppb (2) N/A 0.0 ppb (0) 43.0 ppb (40) 0.2 ppb (3) N/A 0.0 μg/m3 (0) 40.0