ID: 485

AQSQID: 250250042

Site Name: Boston - Roxbury

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

Updated: Nov. 26, 2020, 6:40 a.m.

Location: Roxbury (Roxbury), MA

Reporting: True, Located: True

Current AQI: 89.0

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
Nov. 26, 2020, 4 a.m. 89.0 ppb (89) 62.0 ppb (60) 86.9 ppb (87) 28.0 ppb (27) N/A 1.0 ppb (2) 2.0 ppb (2) 0.83 ppb (10) N/A 16.0 μg/m3 (60) 89.0
 
Nov. 26, 2020, 3 a.m. 110.0 ppb (103) 82.0 ppb (81) 103.1 ppb (102) 28.0 ppb (27) N/A 1.0 ppb (2) 1.0 ppb (1) 0.77 ppb (10) N/A 18.0 μg/m3 (64) 103.0
 
Nov. 26, 2020, 2 a.m. 76.0 ppb (75) 49.0 ppb (47) 71.8 ppb (70) 27.0 ppb (26) N/A 1.0 ppb (2) 1.0 ppb (1) 0.67 ppb (8) N/A 14.0 μg/m3 (55) 75.0
 
Nov. 26, 2020, 1 a.m. 95.0 ppb (95) 66.0 ppb (64) 88.8 ppb (89) 29.0 ppb (28) N/A 1.0 ppb (2) 1.0 ppb (1) 0.79 ppb (10) N/A 16.0 μg/m3 (60) 95.0
 
Nov. 26, 2020, midnight 102.0 ppb (102) 72.0 ppb (71) 96.7 ppb (97) 30.0 ppb (29) N/A 1.0 ppb (2) 1.0 ppb (1) 0.81 ppb (10) N/A 15.0 μg/m3 (58) 102.0
 
Nov. 25, 2020, 11 p.m. 97.0 ppb (97) 65.0 ppb (63) 92.2 ppb (92) 32.0 ppb (31) N/A 1.0 ppb (2) 1.0 ppb (1) 0.87 ppb (11) N/A 13.0 μg/m3 (53) 97.0
 
Nov. 25, 2020, 10 p.m. 101.0 ppb (101) 67.0 ppb (65) 92.6 ppb (93) 34.0 ppb (33) N/A 1.0 ppb (2) 1.0 ppb (1) 0.78 ppb (10) N/A 10.0 μg/m3 (42) 101.0
 
Nov. 25, 2020, 9 p.m. 92.0 ppb (92) 58.0 ppb (56) 87.5 ppb (87) 34.0 ppb (33) N/A 1.0 ppb (2) 1.0 ppb (1) 0.76 ppb (10) N/A 14.0 μg/m3 (55) 92.0
 
Nov. 25, 2020, 8 p.m. 107.0 ppb (103) 71.0 ppb (70) 99.5 ppb (100) 36.0 ppb (34) N/A 1.0 ppb (2) 2.0 ppb (2) 0.73 ppb (8) N/A 6.0 μg/m3 (25) 103.0
 
Nov. 25, 2020, 7 p.m. 46.0 ppb (44) 26.0 ppb (25) 41.9 ppb (40) 20.0 ppb (19) N/A 0.0 ppb (0) 16.0 ppb (15) 0.41 ppb (5) N/A 5.0 μg/m3 (21) 44.0
 
Nov. 25, 2020, 6 p.m. 16.0 ppb (16) 5.0 ppb (5) 13.2 ppb (13) 10.0 ppb (10) N/A 0.0 ppb (0) 23.0 ppb (22) 0.28 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 25, 2020, 5 p.m. 17.0 ppb (17) 6.0 ppb (6) 13.3 ppb (13) 11.0 ppb (11) N/A 0.0 ppb (0) 24.0 ppb (23) 0.29 ppb (4) N/A 5.0 μg/m3 (21) 23.0
 
Nov. 25, 2020, 4 p.m. 22.0 ppb (21) 9.0 ppb (9) 16.9 ppb (16) 14.0 ppb (14) N/A 0.0 ppb (0) 22.0 ppb (21) 0.24 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 25, 2020, 3 p.m. 112.0 ppb (104) 76.0 ppb (75) 103.8 ppb (102) 37.0 ppb (35) N/A 1.0 ppb (2) 3.0 ppb (3) 0.66 ppb (8) N/A 16.0 μg/m3 (60) 104.0
 
Nov. 25, 2020, 2 p.m. 122.0 ppb (105) 82.0 ppb (81) 113.8 ppb (104) 40.0 ppb (38) N/A 2.0 ppb (3) 2.0 ppb (2) 0.59 ppb (7) N/A 11.0 μg/m3 (46) 105.0
 
Nov. 25, 2020, 1 p.m. 133.0 ppb (108) 94.0 ppb (94) 125.6 ppb (106) 39.0 ppb (37) N/A 2.0 ppb (3) 2.0 ppb (2) 0.6 ppb (7) N/A 12.0 μg/m3 (50) 108.0
 
Nov. 25, 2020, noon 99.0 ppb (99) 65.0 ppb (63) 93.0 ppb (93) 34.0 ppb (33) N/A 1.0 ppb (2) 2.0 ppb (2) 0.52 ppb (6) N/A 8.0 μg/m3 (34) 99.0
 
Nov. 25, 2020, 11 a.m. 66.0 ppb (64) 34.0 ppb (33) 61.2 ppb (59) 33.0 ppb (32) N/A 1.0 ppb (2) 1.0 ppb (1) 0.42 ppb (5) N/A 6.0 μg/m3 (25) 64.0
 
Nov. 25, 2020, 10 a.m. 56.0 ppb (54) 26.0 ppb (25) 50.4 ppb (48) 30.0 ppb (29) N/A 0.0 ppb (0) 2.0 ppb (2) 0.33 ppb (4) N/A 7.0 μg/m3 (30) 54.0
 
Nov. 25, 2020, 9 a.m. 32.0 ppb (31) 8.0 ppb (8) 25.7 ppb (25) 24.0 ppb (23) N/A 0.0 ppb (0) 6.0 ppb (6) 0.28 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
Nov. 25, 2020, 8 a.m. 33.0 ppb (32) 12.0 ppb (12) 26.2 ppb (25) 21.0 ppb (20) N/A 0.0 ppb (0) 9.0 ppb (9) 0.26 ppb (4) N/A 5.0 μg/m3 (21) 32.0
 
Nov. 25, 2020, 7 a.m. 32.0 ppb (31) 10.0 ppb (10) 26.3 ppb (25) 22.0 ppb (21) N/A 0.0 ppb (0) 9.0 ppb (9) 0.26 ppb (4) N/A 3.0 μg/m3 (13) 31.0
 
Nov. 25, 2020, 6 a.m. 31.0 ppb (30) 8.0 ppb (8) 26.1 ppb (25) 23.0 ppb (22) N/A 0.0 ppb (0) 9.0 ppb (9) 0.23 ppb (3) N/A 5.0 μg/m3 (21) 30.0
 
Nov. 25, 2020, 5 a.m. 16.0 ppb (16) 2.0 ppb (2) 12.4 ppb (12) 14.0 ppb (14) N/A 0.0 ppb (0) 18.0 ppb (17) 0.21 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 25, 2020, 4 a.m. 12.0 ppb (12) 2.0 ppb (2) 9.1 ppb (9) 10.0 ppb (10) N/A 0.0 ppb (0) 23.0 ppb (22) 0.19 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Nov. 25, 2020, 3 a.m. 9.0 ppb (9) 2.0 ppb (2) 7.1 ppb (7) 7.0 ppb (7) N/A 0.0 ppb (0) 25.0 ppb (24) 0.17 ppb (3) N/A 4.0 μg/m3 (17) 24.0
 
Nov. 25, 2020, 2 a.m. 12.0 ppb (12) 2.0 ppb (2) 9.0 ppb (9) 10.0 ppb (10) N/A 0.0 ppb (0) 23.0 ppb (22) 0.2 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 25, 2020, 1 a.m. 16.0 ppb (16) 3.0 ppb (3) 12.2 ppb (12) 13.0 ppb (13) N/A 0.0 ppb (0) 20.0 ppb (19) 0.22 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 25, 2020, midnight 15.0 ppb (15) 3.0 ppb (3) 11.9 ppb (12) 12.0 ppb (12) N/A 0.0 ppb (0) 21.0 ppb (20) 0.21 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Nov. 24, 2020, 11 p.m. 16.0 ppb (16) 3.0 ppb (3) 12.8 ppb (13) 13.0 ppb (13) N/A 0.0 ppb (0) 20.0 ppb (19) 0.23 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 24, 2020, 10 p.m. 15.0 ppb (15) 3.0 ppb (3) 11.6 ppb (11) 12.0 ppb (12) N/A 0.0 ppb (0) 22.0 ppb (21) 0.21 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
Nov. 24, 2020, 9 p.m. 17.0 ppb (17) 5.0 ppb (5) 13.0 ppb (13) 12.0 ppb (12) N/A 0.0 ppb (0) 22.0 ppb (21) 0.29 ppb (4) N/A 7.0 μg/m3 (30) 30.0
 
Nov. 24, 2020, 8 p.m. 22.0 ppb (21) 9.0 ppb (9) 18.6 ppb (18) 13.0 ppb (13) N/A 0.0 ppb (0) 20.0 ppb (19) 0.21 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 24, 2020, 7 p.m. 19.0 ppb (18) 8.0 ppb (8) 16.6 ppb (16) 10.0 ppb (10) N/A 0.0 ppb (0) 24.0 ppb (23) 0.19 ppb (3) N/A 3.0 μg/m3 (13) 23.0
 
Nov. 24, 2020, 6 p.m. 14.0 ppb (14) 7.0 ppb (7) 11.6 ppb (11) 8.0 ppb (8) N/A 0.0 ppb (0) 25.0 ppb (24) 0.19 ppb (3) N/A 3.0 μg/m3 (13) 24.0
 
Nov. 24, 2020, 5 p.m. 15.0 ppb (15) 7.0 ppb (7) 12.0 ppb (12) 8.0 ppb (8) N/A 0.0 ppb (0) 24.0 ppb (23) 0.19 ppb (3) N/A 2.0 μg/m3 (9) 23.0
 
Nov. 24, 2020, 4 p.m. 16.0 ppb (16) 8.0 ppb (8) 12.5 ppb (12) 8.0 ppb (8) N/A 0.0 ppb (0) 24.0 ppb (23) 0.18 ppb (3) N/A 2.0 μg/m3 (9) 23.0
 
Nov. 24, 2020, 3 p.m. 15.0 ppb (15) 7.0 ppb (7) 12.1 ppb (12) 8.0 ppb (8) N/A 0.0 ppb (0) 22.0 ppb (21) 0.2 ppb (3) N/A 3.0 μg/m3 (13) 21.0
 
Nov. 24, 2020, 2 p.m. 18.0 ppb (17) 8.0 ppb (8) 14.7 ppb (14) 10.0 ppb (10) N/A 0.0 ppb (0) 20.0 ppb (19) 0.23 ppb (3) N/A 3.0 μg/m3 (13) 19.0
 
Nov. 24, 2020, 1 p.m. 21.0 ppb (20) 8.0 ppb (8) 17.3 ppb (17) 13.0 ppb (13) N/A 0.0 ppb (0) 18.0 ppb (17) 0.22 ppb (3) N/A 1.0 μg/m3 (5) 20.0
 
Nov. 24, 2020, noon 21.0 ppb (20) 7.0 ppb (7) 17.1 ppb (17) 15.0 ppb (15) N/A 0.0 ppb (0) 16.0 ppb (15) 0.27 ppb (4) N/A N/A 20.0
 
Nov. 24, 2020, 11 a.m. 19.0 ppb (18) 5.0 ppb (5) 15.1 ppb (15) 15.0 ppb (15) N/A 0.0 ppb (0) 17.0 ppb (16) 0.21 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 24, 2020, 10 a.m. 12.0 ppb (12) 3.0 ppb (3) 8.4 ppb (8) 9.0 ppb (9) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 4.0 μg/m3 (17) 20.0
 
Nov. 24, 2020, 9 a.m. 8.0 ppb (8) 2.0 ppb (2) 6.3 ppb (6) 7.0 ppb (7) N/A 0.0 ppb (0) 23.0 ppb (22) 0.13 ppb (2) N/A 5.0 μg/m3 (21) 22.0
 
Nov. 24, 2020, 8 a.m. 9.0 ppb (9) 2.0 ppb (2) 6.8 ppb (7) 7.0 ppb (7) N/A 0.0 ppb (0) N/A 0.18 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Nov. 24, 2020, 7 a.m. N/A N/A 9.5 ppb (9) N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.28 ppb (4) N/A 4.0 μg/m3 (17) 22.0
 
Nov. 24, 2020, 6 a.m. N/A N/A 15.2 ppb (15) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.21 ppb (3) N/A 4.0 μg/m3 (17) 19.0
 
Nov. 24, 2020, 5 a.m. N/A N/A 13.6 ppb (13) N/A N/A 0.0 ppb (0) 19.0 ppb (18) 0.15 ppb (2) N/A 2.0 μg/m3 (9) 18.0
 
Nov. 24, 2020, 4 a.m. 19.0 ppb (18) 7.0 ppb (7) 15.4 ppb (15) 12.0 ppb (12) N/A N/A 19.0 ppb (18) 0.15 ppb (2) N/A 3.0 μg/m3 (13) 18.0
 
Nov. 24, 2020, 3 a.m. 20.0 ppb (19) 7.0 ppb (7) 16.6 ppb (16) 13.0 ppb (13) N/A N/A 19.0 ppb (18) 0.16 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 24, 2020, 2 a.m. 18.0 ppb (17) 6.0 ppb (6) 13.8 ppb (14) 11.0 ppb (11) N/A N/A 21.0 ppb (20) 0.16 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 24, 2020, 1 a.m. 21.0 ppb (20) 8.0 ppb (8) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 19.0 ppb (18) 0.17 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 24, 2020, midnight 19.0 ppb (18) 7.0 ppb (7) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 21.0 ppb (20) 0.18 ppb (3) N/A 2.0 μg/m3 (9) 20.0
 
Nov. 23, 2020, 11 p.m. 17.0 ppb (17) 6.0 ppb (6) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 21.0 ppb (20) 0.17 ppb (3) N/A 4.0 μg/m3 (17) 20.0
 
Nov. 23, 2020, 10 p.m. 18.0 ppb (17) 7.0 ppb (7) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 14.0 ppb (13) 0.22 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 23, 2020, 9 p.m. 23.0 ppb (22) 11.0 ppb (11) 19.9 ppb (19) 13.0 ppb (13) N/A 0.0 ppb (0) 12.0 ppb (12) 0.22 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Nov. 23, 2020, 8 p.m. 16.0 ppb (16) 8.0 ppb (8) 14.0 ppb (14) 9.0 ppb (9) N/A 0.0 ppb (0) 13.0 ppb (13) 0.22 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Nov. 23, 2020, 7 p.m. 16.0 ppb (16) 7.0 ppb (7) 14.3 ppb (14) 9.0 ppb (9) N/A 0.0 ppb (0) 14.0 ppb (13) 0.24 ppb (3) N/A 1.0 μg/m3 (5) 16.0
 
Nov. 23, 2020, 6 p.m. 20.0 ppb (19) 9.0 ppb (9) 18.4 ppb (18) 11.0 ppb (11) N/A 0.0 ppb (0) 12.0 ppb (12) 0.24 ppb (3) N/A -4.0 μg/m3 (0) 19.0
 
Nov. 23, 2020, 5 p.m. 24.0 ppb (23) 10.0 ppb (10) 20.9 ppb (20) 14.0 ppb (14) N/A 0.0 ppb (0) 12.0 ppb (12) 0.25 ppb (3) N/A N/A 23.0
 
Nov. 23, 2020, 4 p.m. 19.0 ppb (18) 6.0 ppb (6) 16.3 ppb (16) 13.0 ppb (13) N/A 0.0 ppb (0) 16.0 ppb (15) 0.23 ppb (3) N/A -4.0 μg/m3 (0) 18.0
 
Nov. 23, 2020, 3 p.m. 13.0 ppb (13) 3.0 ppb (3) 10.8 ppb (11) 10.0 ppb (10) N/A 0.0 ppb (0) 26.0 ppb (25) 0.18 ppb (3) N/A 2.0 μg/m3 (9) 25.0
 
Nov. 23, 2020, 2 p.m. 10.0 ppb (10) 2.0 ppb (2) 8.1 ppb (8) 8.0 ppb (8) N/A 0.0 ppb (0) 27.0 ppb (25) 0.17 ppb (3) N/A 0.0 μg/m3 (0) 25.0
 
Nov. 23, 2020, 1 p.m. 16.0 ppb (16) 4.0 ppb (4) 11.9 ppb (12) 12.0 ppb (12) N/A 0.0 ppb (0) 21.0 ppb (20) 0.24 ppb (3) N/A 2.0 μg/m3 (9) 20.0
 
Nov. 23, 2020, noon 15.0 ppb (15) 4.0 ppb (4) 11.0 ppb (11) 12.0 ppb (12) N/A 0.0 ppb (0) 19.0 ppb (18) 0.25 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 23, 2020, 11 a.m. 34.0 ppb (33) 11.0 ppb (11) 28.3 ppb (27) 23.0 ppb (22) N/A 0.0 ppb (0) 5.0 ppb (5) 0.35 ppb (4) N/A 1.0 μg/m3 (5) 33.0
 
Nov. 23, 2020, 10 a.m. 17.0 ppb (17) 3.0 ppb (3) 14.3 ppb (14) 14.0 ppb (14) N/A 0.0 ppb (0) 12.0 ppb (12) 0.23 ppb (3) N/A 3.0 μg/m3 (13) 17.0
 
Nov. 23, 2020, 9 a.m. 9.0 ppb (9) 2.0 ppb (2) 7.5 ppb (8) 8.0 ppb (8) N/A 0.0 ppb (0) 18.0 ppb (17) 0.16 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 23, 2020, 8 a.m. 12.0 ppb (12) 2.0 ppb (2) 10.1 ppb (10) 10.0 ppb (10) N/A 0.0 ppb (0) 16.0 ppb (15) 0.17 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Nov. 23, 2020, 7 a.m. 6.0 ppb (6) 2.0 ppb (2) 5.4 ppb (6) 4.0 ppb (4) N/A 0.0 ppb (0) 23.0 ppb (22) 0.16 ppb (3) N/A 4.0 μg/m3 (17) 22.0
 
Nov. 23, 2020, 6 a.m. 4.0 ppb (4) 2.0 ppb (2) 3.5 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (24) 0.14 ppb (2) N/A 4.0 μg/m3 (17) 24.0
 
Nov. 23, 2020, 5 a.m. 3.0 ppb (3) 2.0 ppb (2) 2.5 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (25) 0.14 ppb (2) N/A 5.0 μg/m3 (21) 25.0
 
Nov. 23, 2020, 4 a.m. 4.0 ppb (4) 2.0 ppb (2) 3.6 ppb (4) 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (25) 0.14 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 23, 2020, 3 a.m. 5.0 ppb (5) 2.0 ppb (2) 4.0 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (25) 0.15 ppb (2) N/A 7.0 μg/m3 (30) 30.0
 
Nov. 23, 2020, 2 a.m. 5.0 ppb (5) 2.0 ppb (2) 4.4 ppb (5) 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (24) 0.15 ppb (2) N/A 8.0 μg/m3 (34) 34.0
 
Nov. 23, 2020, 1 a.m. 5.0 ppb (5) 2.0 ppb (2) 3.6 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (24) 0.14 ppb (2) N/A 5.0 μg/m3 (21) 24.0
 
Nov. 23, 2020, midnight 4.0 ppb (4) 2.0 ppb (2) 3.6 ppb (4) 2.0 ppb (2) N/A 0.0 ppb (0) 25.0 ppb (24) 0.15 ppb (2) N/A 2.0 μg/m3 (9) 24.0
 
Nov. 22, 2020, 11 p.m. 5.0 ppb (5) 2.0 ppb (2) 3.9 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (24) 0.15 ppb (2) N/A 2.0 μg/m3 (9) 24.0
 
Nov. 22, 2020, 10 p.m. 5.0 ppb (5) 2.0 ppb (2) 3.9 ppb (4) 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (25) 0.16 ppb (3) N/A 5.0 μg/m3 (21) 25.0
 
Nov. 22, 2020, 9 p.m. 5.0 ppb (5) 2.0 ppb (2) 4.2 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (24) 0.16 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 22, 2020, 8 p.m. 8.0 ppb (8) 3.0 ppb (3) 6.1 ppb (6) 5.0 ppb (5) N/A 0.0 ppb (0) 23.0 ppb (22) 0.17 ppb (3) N/A 4.0 μg/m3 (17) 22.0
 
Nov. 22, 2020, 7 p.m. 9.0 ppb (9) 3.0 ppb (3) 6.9 ppb (7) 6.0 ppb (6) N/A 0.0 ppb (0) 23.0 ppb (22) 0.16 ppb (3) N/A 4.0 μg/m3 (17) 22.0
 
Nov. 22, 2020, 6 p.m. 9.0 ppb (9) 3.0 ppb (3) 6.5 ppb (7) 6.0 ppb (6) N/A 0.0 ppb (0) 22.0 ppb (21) 0.15 ppb (2) N/A 4.0 μg/m3 (17) 21.0
 
Nov. 22, 2020, 5 p.m. 7.0 ppb (7) 3.0 ppb (3) 6.0 ppb (6) 5.0 ppb (5) N/A 0.0 ppb (0) 23.0 ppb (22) 0.15 ppb (2) N/A 3.0 μg/m3 (13) 22.0
 
Nov. 22, 2020, 4 p.m. 8.0 ppb (8) 3.0 ppb (3) 5.8 ppb (6) 5.0 ppb (5) N/A 0.0 ppb (0) 23.0 ppb (22) 0.15 ppb (2) N/A 1.0 μg/m3 (5) 22.0
 
Nov. 22, 2020, 3 p.m. 7.0 ppb (7) 3.0 ppb (3) 5.5 ppb (6) 4.0 ppb (4) N/A 0.0 ppb (0) 23.0 ppb (22) 0.15 ppb (2) N/A 5.0 μg/m3 (21) 22.0
 
Nov. 22, 2020, 2 p.m. 7.0 ppb (7) 3.0 ppb (3) 5.6 ppb (6) 4.0 ppb (4) N/A 0.0 ppb (0) 23.0 ppb (22) 0.14 ppb (2) N/A 8.0 μg/m3 (34) 34.0
 
Nov. 22, 2020, 1 p.m. 16.0 ppb (16) 5.0 ppb (5) 12.0 ppb (12) 11.0 ppb (11) N/A 0.0 ppb (0) 16.0 ppb (15) 0.19 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
Nov. 22, 2020, noon 14.0 ppb (14) 3.0 ppb (3) 10.6 ppb (10) 11.0 ppb (11) N/A 0.0 ppb (0) 14.0 ppb (13) 0.18 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 22, 2020, 11 a.m. 11.0 ppb (11) 2.0 ppb (2) 8.5 ppb (9) 9.0 ppb (9) N/A 0.0 ppb (0) 16.0 ppb (15) 0.18 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 22, 2020, 10 a.m. 12.0 ppb (12) 2.0 ppb (2) 9.4 ppb (9) 10.0 ppb (10) N/A 0.0 ppb (0) 15.0 ppb (14) 0.15 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 22, 2020, 9 a.m. 9.0 ppb (9) 2.0 ppb (2) 6.7 ppb (7) 7.0 ppb (7) N/A 0.0 ppb (0) 17.0 ppb (16) 0.15 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 22, 2020, 8 a.m. 8.0 ppb (8) 2.0 ppb (2) 6.5 ppb (7) 7.0 ppb (7) N/A 0.0 ppb (0) 17.0 ppb (16) 0.15 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 22, 2020, 7 a.m. 10.0 ppb (10) 2.0 ppb (2) 7.3 ppb (7) 8.0 ppb (8) N/A 0.0 ppb (0) 16.0 ppb (15) 0.15 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 22, 2020, 6 a.m. 10.0 ppb (10) 2.0 ppb (2) 7.6 ppb (8) 8.0 ppb (8) N/A 0.0 ppb (0) 15.0 ppb (14) 0.18 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 22, 2020, 5 a.m. 9.0 ppb (9) 2.0 ppb (2) 6.9 ppb (7) 7.0 ppb (7) N/A 0.0 ppb (0) 16.0 ppb (15) 0.16 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 22, 2020, 4 a.m. 7.0 ppb (7) 2.0 ppb (2) 5.2 ppb (5) 5.0 ppb (5) N/A 0.0 ppb (0) 19.0 ppb (18) 0.15 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 22, 2020, 3 a.m. 5.0 ppb (5) 2.0 ppb (2) 4.2 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (21) 0.15 ppb (2) N/A 4.0 μg/m3 (17) 21.0
 
Nov. 22, 2020, 2 a.m. 6.0 ppb (6) 2.0 ppb (2) 4.9 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 22.0 ppb (21) 0.16 ppb (3) N/A 3.0 μg/m3 (13) 21.0
 
Nov. 22, 2020, 1 a.m. 6.0 ppb (6) 2.0 ppb (2) 4.7 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 24.0 ppb (23) 0.16 ppb (3) N/A 5.0 μg/m3 (21) 23.0
 
Nov. 22, 2020, midnight 8.0 ppb (8) 2.0 ppb (2) 6.3 ppb (6) 6.0 ppb (6) N/A 0.0 ppb (0) 23.0 ppb (22) 0.2 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Nov. 21, 2020, 11 p.m. 10.0 ppb (10) 2.0 ppb (2) 8.1 ppb (8) 8.0 ppb (8) N/A 0.0 ppb (0) 25.0 ppb (24) 0.22 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Nov. 21, 2020, 10 p.m. 11.0 ppb (11) 2.0 ppb (2) 8.8 ppb (9) 9.0 ppb (9) N/A 0.0 ppb (0) 27.0 ppb (25) 0.22 ppb (3) N/A 4.0 μg/m3 (17) 25.0
 
Nov. 21, 2020, 9 p.m. 18.0 ppb (17) 5.0 ppb (5) 13.8 ppb (14) 13.0 ppb (13) N/A 0.0 ppb (0) 24.0 ppb (23) 0.23 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
Nov. 21, 2020, 8 p.m. 16.0 ppb (16) 4.0 ppb (4) 13.3 ppb (13) 12.0 ppb (12) N/A 0.0 ppb (0) 27.0 ppb (25) 0.24 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Nov. 21, 2020, 7 p.m. 12.0 ppb (12) 4.0 ppb (4) 10.1 ppb (10) 8.0 ppb (8) N/A 0.0 ppb (0) 31.0 ppb (29) 0.22 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Nov. 21, 2020, 6 p.m. 8.0 ppb (8) 3.0 ppb (3) 7.0 ppb (7) 5.0 ppb (5) N/A 0.0 ppb (0) 34.0 ppb (32) 0.21 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
Nov. 21, 2020, 5 p.m. 10.0 ppb (10) 4.0 ppb (4) 9.1 ppb (9) 7.0 ppb (7) N/A 0.0 ppb (0) 31.0 ppb (29) 0.22 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 21, 2020, 4 p.m. 12.0 ppb (12) 5.0 ppb (5) 11.4 ppb (11) 8.0 ppb (8) N/A 0.0 ppb (0) 31.0 ppb (29) 0.2 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 21, 2020, 3 p.m. 17.0 ppb (17) 7.0 ppb (7) 15.3 ppb (15) 11.0 ppb (11) N/A 0.0 ppb (0) 27.0 ppb (25) 0.21 ppb (3) N/A 14.0 μg/m3 (55) 55.0
 
Nov. 21, 2020, 2 p.m. 14.0 ppb (14) 4.0 ppb (4) 12.5 ppb (12) 9.0 ppb (9) N/A 0.0 ppb (0) 27.0 ppb (25) 0.24 ppb (3) N/A 14.0 μg/m3 (55) 55.0
 
Nov. 21, 2020, 1 p.m. 19.0 ppb (18) 5.0 ppb (5) 16.7 ppb (16) 14.0 ppb (14) N/A 0.0 ppb (0) 22.0 ppb (21) 0.28 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
Nov. 21, 2020, noon 27.0 ppb (26) 6.0 ppb (6) 22.2 ppb (21) 21.0 ppb (20) N/A 0.0 ppb (0) 13.0 ppb (13) 0.34 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 21, 2020, 11 a.m. 29.0 ppb (28) 6.0 ppb (6) 22.2 ppb (21) 23.0 ppb (22) N/A 0.0 ppb (0) 8.0 ppb (8) 0.41 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 21, 2020, 10 a.m. 22.0 ppb (21) 3.0 ppb (3) 17.3 ppb (17) 19.0 ppb (18) N/A 0.0 ppb (0) 12.0 ppb (12) N/A N/A 10.0 μg/m3 (42) 42.0
 
Nov. 21, 2020, 9 a.m. 17.0 ppb (17) 2.0 ppb (2) 14.2 ppb (14) 16.0 ppb (16) N/A 0.0 ppb (0) 16.0 ppb (15) 0.31 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 21, 2020, 8 a.m. 17.0 ppb (17) 2.0 ppb (2) 13.9 ppb (14) 15.0 ppb (15) N/A 0.0 ppb (0) N/A 0.31 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 21, 2020, 7 a.m. N/A N/A 13.3 ppb (13) N/A N/A 0.0 ppb (0) 19.0 ppb (18) 0.34 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 21, 2020, 6 a.m. N/A N/A 11.4 ppb (11) N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.3 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 21, 2020, 5 a.m. N/A N/A 15.1 ppb (15) N/A N/A 0.0 ppb (0) 19.0 ppb (18) 0.32 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 21, 2020, 4 a.m. 14.0 ppb (14) 2.0 ppb (2) 11.6 ppb (11) 12.0 ppb (12) N/A N/A 24.0 ppb (23) 0.34 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 21, 2020, 3 a.m. 13.0 ppb (13) 2.0 ppb (2) 10.7 ppb (11) 11.0 ppb (11) N/A N/A 26.0 ppb (25) 0.3 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
Nov. 21, 2020, 2 a.m. 13.0 ppb (13) 2.0 ppb (2) 10.1 ppb (10) 10.0 ppb (10) N/A N/A 27.0 ppb (25) 0.3 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 21, 2020, 1 a.m. 13.0 ppb (13) 2.0 ppb (2) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 28.0 ppb (26) 0.29 ppb (4) N/A 16.0 μg/m3 (60) 60.0
 
Nov. 21, 2020, midnight 13.0 ppb (13) 2.0 ppb (2) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 28.0 ppb (26) 0.28 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 20, 2020, 11 p.m. 14.0 ppb (14) 2.0 ppb (2) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 28.0 ppb (26) 0.28 ppb (4) N/A 6.0 μg/m3 (25) 26.0
 
Nov. 20, 2020, 10 p.m. 17.0 ppb (17) 2.0 ppb (2) N/A 15.0 ppb (15) N/A 0.0 ppb (0) 26.0 ppb (25) 0.3 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 20, 2020, 9 p.m. 17.0 ppb (17) 3.0 ppb (3) 13.9 ppb (14) 14.0 ppb (14) N/A 0.0 ppb (0) 27.0 ppb (25) 0.32 ppb (4) N/A 7.0 μg/m3 (30) 30.0
 
Nov. 20, 2020, 8 p.m. 13.0 ppb (13) 3.0 ppb (3) 10.1 ppb (10) 9.0 ppb (9) N/A 0.0 ppb (0) 32.0 ppb (30) 0.25 ppb (3) N/A 6.0 μg/m3 (25) 30.0
 
Nov. 20, 2020, 7 p.m. 12.0 ppb (12) 4.0 ppb (4) 10.4 ppb (10) 8.0 ppb (8) N/A 0.0 ppb (0) 32.0 ppb (30) 0.24 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Nov. 20, 2020, 6 p.m. 13.0 ppb (13) 5.0 ppb (5) 10.5 ppb (10) 8.0 ppb (8) N/A 0.0 ppb (0) 32.0 ppb (30) 0.22 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Nov. 20, 2020, 5 p.m. 13.0 ppb (13) 5.0 ppb (5) 11.3 ppb (11) 8.0 ppb (8) N/A 0.0 ppb (0) 31.0 ppb (29) 0.25 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 20, 2020, 4 p.m. 11.0 ppb (11) 4.0 ppb (4) 9.7 ppb (10) 7.0 ppb (7) N/A 0.0 ppb (0) 31.0 ppb (29) 0.22 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 20, 2020, 3 p.m. 12.0 ppb (12) 5.0 ppb (5) 10.5 ppb (10) 7.0 ppb (7) N/A 0.0 ppb (0) 29.0 ppb (27) 0.23 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 20, 2020, 2 p.m. 12.0 ppb (12) 5.0 ppb (5) 10.1 ppb (10) 8.0 ppb (8) N/A 0.0 ppb (0) 27.0 ppb (25) 0.22 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Nov. 20, 2020, 1 p.m. 15.0 ppb (15) 4.0 ppb (4) 12.4 ppb (12) 10.0 ppb (10) N/A 0.0 ppb (0) 25.0 ppb (24) 0.22 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 20, 2020, noon 17.0 ppb (17) 4.0 ppb (4) 13.6 ppb (13) 13.0 ppb (13) N/A 0.0 ppb (0) 22.0 ppb (21) 0.22 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 20, 2020, 11 a.m. 18.0 ppb (17) 4.0 ppb (4) 14.2 ppb (14) 13.0 ppb (13) N/A 0.0 ppb (0) 22.0 ppb (21) 0.2 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Nov. 20, 2020, 10 a.m. 9.0 ppb (9) 2.0 ppb (2) 7.5 ppb (8) 7.0 ppb (7) N/A 0.0 ppb (0) 27.0 ppb (25) 0.18 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 20, 2020, 9 a.m. 6.0 ppb (6) 1.0 ppb (1) 5.4 ppb (6) 5.0 ppb (5) N/A 0.0 ppb (0) 29.0 ppb (27) 0.17 ppb (3) N/A 6.0 μg/m3 (25) 27.0
 
Nov. 20, 2020, 8 a.m. 6.0 ppb (6) 1.0 ppb (1) 5.0 ppb (5) 5.0 ppb (5) N/A 0.0 ppb (0) 30.0 ppb (28) 0.17 ppb (3) N/A 6.0 μg/m3 (25) 28.0
 
Nov. 20, 2020, 7 a.m. 6.0 ppb (6) 1.0 ppb (1) 4.6 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (29) 0.17 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Nov. 20, 2020, 6 a.m. 5.0 ppb (5) 1.0 ppb (1) 4.0 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (30) 0.17 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Nov. 20, 2020, 5 a.m. 5.0 ppb (5) 2.0 ppb (2) 4.4 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 33.0 ppb (31) 0.17 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
Nov. 20, 2020, 4 a.m. 6.0 ppb (6) 2.0 ppb (2) 4.6 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 32.0 ppb (30) 0.17 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 20, 2020, 3 a.m. 7.0 ppb (7) 2.0 ppb (2) 5.4 ppb (6) 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (29) 0.2 ppb (3) N/A 5.0 μg/m3 (21) 29.0
 
Nov. 20, 2020, 2 a.m. 8.0 ppb (8) 2.0 ppb (2) 6.5 ppb (7) 7.0 ppb (7) N/A 0.0 ppb (0) 31.0 ppb (29) 0.2 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 20, 2020, 1 a.m. 10.0 ppb (10) 2.0 ppb (2) 7.7 ppb (8) 8.0 ppb (8) N/A 0.0 ppb (0) 31.0 ppb (29) 0.22 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 20, 2020, midnight 10.0 ppb (10) 2.0 ppb (2) 8.1 ppb (8) 8.0 ppb (8) N/A 0.0 ppb (0) 30.0 ppb (28) 0.22 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
Nov. 19, 2020, 11 p.m. 12.0 ppb (12) 3.0 ppb (3) 9.9 ppb (10) 9.0 ppb (9) N/A 0.0 ppb (0) 28.0 ppb (26) 0.25 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 19, 2020, 10 p.m. 14.0 ppb (14) 3.0 ppb (3) 10.8 ppb (11) 11.0 ppb (11) N/A 0.0 ppb (0) 26.0 ppb (25) 0.24 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 19, 2020, 9 p.m. 12.0 ppb (12) 3.0 ppb (3) 9.8 ppb (10) 9.0 ppb (9) N/A 0.0 ppb (0) 29.0 ppb (27) 0.23 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 19, 2020, 8 p.m. 11.0 ppb (11) 3.0 ppb (3) 8.4 ppb (8) 8.0 ppb (8) N/A 0.0 ppb (0) 31.0 ppb (29) 0.21 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 19, 2020, 7 p.m. 12.0 ppb (12) 4.0 ppb (4) 9.2 ppb (9) 7.0 ppb (7) N/A 0.0 ppb (0) 30.0 ppb (28) 0.22 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Nov. 19, 2020, 6 p.m. 12.0 ppb (12) 5.0 ppb (5) 10.1 ppb (10) 7.0 ppb (7) N/A 0.0 ppb (0) 29.0 ppb (27) 0.23 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Nov. 19, 2020, 5 p.m. 13.0 ppb (13) 6.0 ppb (6) 10.4 ppb (10) 7.0 ppb (7) N/A 0.0 ppb (0) 29.0 ppb (27) 0.23 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
Nov. 19, 2020, 4 p.m. 16.0 ppb (16) 7.0 ppb (7) 13.8 ppb (14) 8.0 ppb (8) N/A 0.0 ppb (0) 26.0 ppb (25) 0.22 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 19, 2020, 3 p.m. 18.0 ppb (17) 8.0 ppb (8) 14.7 ppb (14) 10.0 ppb (10) N/A 0.0 ppb (0) 22.0 ppb (21) 0.23 ppb (3) N/A N/A 21.0
 
Nov. 19, 2020, 2 p.m. 17.0 ppb (17) 7.0 ppb (7) 13.9 ppb (14) 10.0 ppb (10) N/A 0.0 ppb (0) 22.0 ppb (21) 0.23 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 19, 2020, 1 p.m. 31.0 ppb (30) 13.0 ppb (13) 25.6 ppb (25) 17.0 ppb (17) N/A 0.0 ppb (0) 15.0 ppb (14) 0.28 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
Nov. 19, 2020, noon 41.0 ppb (39) 16.0 ppb (16) 34.6 ppb (33) 25.0 ppb (24) N/A 0.0 ppb (0) 7.0 ppb (7) 0.38 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 19, 2020, 11 a.m. 47.0 ppb (45) 19.0 ppb (18) 37.5 ppb (36) 28.0 ppb (27) N/A 0.0 ppb (0) 4.0 ppb (4) 0.3 ppb (4) N/A 6.0 μg/m3 (25) 45.0
 
Nov. 19, 2020, 10 a.m. 33.0 ppb (32) 7.0 ppb (7) 26.4 ppb (25) 26.0 ppb (25) N/A 0.0 ppb (0) 6.0 ppb (6) 0.28 ppb (4) N/A 5.0 μg/m3 (21) 32.0
 
Nov. 19, 2020, 9 a.m. 31.0 ppb (30) 7.0 ppb (7) 24.4 ppb (24) 24.0 ppb (23) N/A 0.0 ppb (0) 10.0 ppb (10) 0.21 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Nov. 19, 2020, 8 a.m. 31.0 ppb (30) 9.0 ppb (9) 27.6 ppb (27) 22.0 ppb (21) N/A 0.0 ppb (0) 11.0 ppb (11) 0.3 ppb (4) N/A 7.0 μg/m3 (30) 30.0
 
Nov. 19, 2020, 7 a.m. 32.0 ppb (31) 10.0 ppb (10) 26.1 ppb (25) 23.0 ppb (22) N/A 0.0 ppb (0) 10.0 ppb (10) 0.22 ppb (3) N/A 4.0 μg/m3 (17) 31.0
 
Nov. 19, 2020, 6 a.m. 40.0 ppb (38) 16.0 ppb (16) 32.9 ppb (32) 24.0 ppb (23) N/A 0.0 ppb (0) 10.0 ppb (10) 0.19 ppb (3) N/A 6.0 μg/m3 (25) 38.0
 
Nov. 19, 2020, 5 a.m. 16.0 ppb (16) 4.0 ppb (4) 14.1 ppb (14) 12.0 ppb (12) N/A 0.0 ppb (0) 20.0 ppb (19) 0.18 ppb (3) N/A 6.0 μg/m3 (25) 25.0