AQSQID: 250270023

Site Name: Worcester

Location: Worcester (Asylum St), MA

Reporting: True, Located: True

Current AQI: 25.0

Worcester (Asylum St) MA, US: 42.263901, -71.794701

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Nov. 13, 2019, 4 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.16 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 13, 2019, 3 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.13 ppb (1) N/A 4.0 μg/m3 (17) 17.0
 
Nov. 13, 2019, 2 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.13 ppb (1) N/A 2.0 μg/m3 (8) 8.0
 
Nov. 13, 2019, 1 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.13 ppb (1) N/A 4.0 μg/m3 (17) 17.0
 
Nov. 13, 2019, midnight 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.16 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Nov. 12, 2019, 11 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A 0.19 ppb (2) N/A 2.0 μg/m3 (8) 8.0
 
Nov. 12, 2019, 10 p.m. 11.0 ppb (10) 4.0 ppb (4) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A 0.27 ppb (3) N/A 3.0 μg/m3 (12) 12.0
 
Nov. 12, 2019, 9 p.m. 16.0 ppb (15) 7.0 ppb (6) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A 0.27 ppb (3) N/A 3.0 μg/m3 (12) 15.0
 
Nov. 12, 2019, 8 p.m. 13.0 ppb (12) 6.0 ppb (6) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A 0.28 ppb (3) N/A 2.0 μg/m3 (8) 12.0
 
Nov. 12, 2019, 7 p.m. 17.0 ppb (16) 8.0 ppb (7) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A 0.27 ppb (3) N/A 1.0 μg/m3 (4) 16.0
 
Nov. 12, 2019, 6 p.m. 14.0 ppb (13) 7.0 ppb (6) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A 0.25 ppb (3) N/A -1.0 μg/m3 (0) 13.0
 
Nov. 12, 2019, 5 p.m. 11.0 ppb (10) 5.0 ppb (5) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.28 ppb (3) N/A -1.0 μg/m3 (0) 10.0
 
Nov. 12, 2019, 4 p.m. 14.0 ppb (13) 6.0 ppb (6) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A 0.25 ppb (3) N/A 2.0 μg/m3 (8) 13.0
 
Nov. 12, 2019, 3 p.m. 18.0 ppb (17) 9.0 ppb (8) N/A 10.0 ppb (9) N/A N/A N/A N/A N/A N/A 17.0
 
Nov. 12, 2019, 2 p.m. 44.0 ppb (41) 29.0 ppb (27) N/A 15.0 ppb (14) N/A 1.0 ppb (1) N/A 0.78 ppb (9) N/A 13.0 μg/m3 (52) 52.0
 
Nov. 12, 2019, 1 p.m. 60.0 ppb (56) 40.0 ppb (37) N/A 19.0 ppb (18) N/A 1.0 ppb (1) N/A 0.57 ppb (6) N/A 7.0 μg/m3 (29) 56.0
 
Nov. 12, 2019, noon 44.0 ppb (41) 27.0 ppb (25) N/A 18.0 ppb (17) N/A 0.0 ppb (0) N/A 0.43 ppb (5) N/A 7.0 μg/m3 (29) 41.0
 
Nov. 12, 2019, 11 a.m. 31.0 ppb (29) 16.0 ppb (15) N/A 14.0 ppb (13) N/A 0.0 ppb (0) N/A 0.27 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 12, 2019, 10 a.m. 14.0 ppb (13) 5.0 ppb (5) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
Nov. 12, 2019, 9 a.m. 9.0 ppb (8) 2.0 ppb (2) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A 0.19 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 12, 2019, 8 a.m. 8.0 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A 0.19 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 12, 2019, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.18 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 12, 2019, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.19 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Nov. 12, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 12, 2019, 4 a.m. 10.0 ppb (9) 3.0 ppb (3) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A 0.22 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Nov. 12, 2019, 3 a.m. 12.0 ppb (11) 3.0 ppb (3) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A 0.24 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Nov. 12, 2019, 2 a.m. 12.0 ppb (11) 2.0 ppb (2) N/A 10.0 ppb (9) N/A 0.0 ppb (0) N/A 0.26 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 12, 2019, 1 a.m. 14.0 ppb (13) 3.0 ppb (3) N/A 11.0 ppb (10) N/A 0.0 ppb (0) N/A 0.26 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Nov. 12, 2019, midnight 21.0 ppb (19) 6.0 ppb (6) N/A 15.0 ppb (14) N/A 0.0 ppb (0) N/A 0.34 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 11, 2019, 11 p.m. 23.0 ppb (21) 6.0 ppb (6) N/A 17.0 ppb (16) N/A 0.0 ppb (0) N/A 0.35 ppb (4) N/A 17.0 μg/m3 (61) 61.0
 
Nov. 11, 2019, 10 p.m. 34.0 ppb (31) 10.0 ppb (9) N/A 24.0 ppb (22) N/A 0.0 ppb (0) N/A 0.46 ppb (5) N/A 20.0 μg/m3 (67) 67.0
 
Nov. 11, 2019, 9 p.m. 37.0 ppb (34) 12.0 ppb (11) N/A 25.0 ppb (23) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 11, 2019, 8 p.m. 35.0 ppb (32) 12.0 ppb (11) N/A 23.0 ppb (21) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 14.0 μg/m3 (54) 54.0
 
Nov. 11, 2019, 7 p.m. 35.0 ppb (32) 14.0 ppb (13) N/A 21.0 ppb (19) N/A 0.0 ppb (0) N/A 0.48 ppb (5) N/A 14.0 μg/m3 (54) 54.0
 
Nov. 11, 2019, 6 p.m. 46.0 ppb (43) 20.0 ppb (19) N/A 25.0 ppb (23) N/A 1.0 ppb (1) N/A 0.52 ppb (6) N/A 16.0 μg/m3 (59) 59.0
 
Nov. 11, 2019, 5 p.m. 55.0 ppb (51) 25.0 ppb (23) N/A 30.0 ppb (28) N/A 1.0 ppb (1) N/A 0.56 ppb (6) N/A 19.0 μg/m3 (65) 65.0
 
Nov. 11, 2019, 4 p.m. 57.0 ppb (53) 28.0 ppb (26) N/A 29.0 ppb (27) N/A 1.0 ppb (1) N/A 0.53 ppb (6) N/A 28.0 μg/m3 (84) 84.0
 
Nov. 11, 2019, 3 p.m. 62.0 ppb (59) 32.0 ppb (30) N/A 30.0 ppb (28) N/A 1.0 ppb (1) N/A 0.53 ppb (6) N/A 27.0 μg/m3 (82) 82.0
 
Nov. 11, 2019, 2 p.m. 48.0 ppb (44) 22.0 ppb (20) N/A 26.0 ppb (24) N/A 0.0 ppb (0) N/A 0.49 ppb (5) N/A 16.0 μg/m3 (59) 59.0
 
Nov. 11, 2019, 1 p.m. 41.0 ppb (38) 15.0 ppb (14) N/A 25.0 ppb (23) N/A 0.0 ppb (0) N/A 0.44 ppb (5) N/A 19.0 μg/m3 (65) 65.0
 
Nov. 11, 2019, noon 47.0 ppb (44) 20.0 ppb (19) N/A 27.0 ppb (25) N/A 0.0 ppb (0) N/A 0.48 ppb (5) N/A 20.0 μg/m3 (67) 67.0
 
Nov. 11, 2019, 11 a.m. 52.0 ppb (48) 24.0 ppb (22) N/A 29.0 ppb (27) N/A 0.0 ppb (0) N/A 0.42 ppb (5) N/A 16.0 μg/m3 (59) 59.0
 
Nov. 11, 2019, 10 a.m. 45.0 ppb (42) 17.0 ppb (16) N/A 28.0 ppb (26) N/A N/A N/A 0.41 ppb (5) N/A 17.0 μg/m3 (61) 61.0
 
Nov. 11, 2019, 9 a.m. 32.0 ppb (30) 7.0 ppb (6) N/A 26.0 ppb (24) N/A N/A N/A 0.37 ppb (4) N/A 19.0 μg/m3 (65) 65.0
 
Nov. 11, 2019, 8 a.m. 29.0 ppb (27) 5.0 ppb (5) N/A 25.0 ppb (23) N/A N/A N/A 0.35 ppb (4) N/A 13.0 μg/m3 (52) 52.0
 
Nov. 11, 2019, 7 a.m. 32.0 ppb (30) 7.0 ppb (6) N/A 25.0 ppb (23) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 11, 2019, 6 a.m. 27.0 ppb (25) 4.0 ppb (4) N/A 23.0 ppb (21) N/A 0.0 ppb (0) N/A 0.42 ppb (5) N/A 17.0 μg/m3 (61) 61.0
 
Nov. 11, 2019, 5 a.m. 24.0 ppb (22) 2.0 ppb (2) N/A 21.0 ppb (19) N/A 0.0 ppb (0) N/A 0.36 ppb (4) N/A 14.0 μg/m3 (54) 54.0
 
Nov. 11, 2019, 4 a.m. 36.0 ppb (33) 9.0 ppb (8) N/A 28.0 ppb (26) N/A 0.0 ppb (0) N/A 0.41 ppb (5) N/A 13.0 μg/m3 (52) 52.0
 
Nov. 11, 2019, 3 a.m. 31.0 ppb (29) 7.0 ppb (6) N/A 25.0 ppb (23) N/A 0.0 ppb (0) N/A 0.41 ppb (5) N/A 14.0 μg/m3 (54) 54.0
 
Nov. 11, 2019, 2 a.m. 31.0 ppb (29) 7.0 ppb (6) N/A 23.0 ppb (21) N/A 0.0 ppb (0) N/A 0.36 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 11, 2019, 1 a.m. 21.0 ppb (19) 3.0 ppb (3) N/A 18.0 ppb (17) N/A 0.0 ppb (0) N/A 0.33 ppb (4) N/A 15.0 μg/m3 (56) 56.0
 
Nov. 11, 2019, midnight 23.0 ppb (21) 4.0 ppb (4) N/A 18.0 ppb (17) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 10, 2019, 11 p.m. 24.0 ppb (22) 5.0 ppb (5) N/A 19.0 ppb (18) N/A 0.0 ppb (0) N/A 0.33 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 10, 2019, 10 p.m. 29.0 ppb (27) 7.0 ppb (6) N/A 22.0 ppb (20) N/A 0.0 ppb (0) N/A 0.42 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 10, 2019, 9 p.m. 21.0 ppb (19) 4.0 ppb (4) N/A 17.0 ppb (16) N/A 0.0 ppb (0) N/A 0.39 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 10, 2019, 8 p.m. 13.0 ppb (12) 3.0 ppb (3) N/A 11.0 ppb (10) N/A 0.0 ppb (0) N/A 0.27 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 10, 2019, 7 p.m. 12.0 ppb (11) 2.0 ppb (2) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A 0.25 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Nov. 10, 2019, 6 p.m. 11.0 ppb (10) 3.0 ppb (3) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A 0.24 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 10, 2019, 5 p.m. 14.0 ppb (13) 5.0 ppb (5) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A 0.23 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Nov. 10, 2019, 4 p.m. 13.0 ppb (12) 4.0 ppb (4) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A 0.24 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 10, 2019, 3 p.m. 15.0 ppb (14) 5.0 ppb (5) N/A 11.0 ppb (10) N/A 0.0 ppb (0) N/A 0.26 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 10, 2019, 2 p.m. 15.0 ppb (14) 5.0 ppb (5) N/A 10.0 ppb (9) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 10, 2019, 1 p.m. 22.0 ppb (20) 8.0 ppb (7) N/A 15.0 ppb (14) N/A 0.0 ppb (0) N/A 0.24 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 10, 2019, noon 30.0 ppb (28) 9.0 ppb (8) N/A 21.0 ppb (19) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 10, 2019, 11 a.m. 44.0 ppb (41) 17.0 ppb (16) N/A 26.0 ppb (24) N/A 0.0 ppb (0) N/A 0.37 ppb (4) N/A 7.0 μg/m3 (29) 41.0
 
Nov. 10, 2019, 10 a.m. 38.0 ppb (35) 13.0 ppb (12) N/A 25.0 ppb (23) N/A 0.0 ppb (0) N/A 0.33 ppb (4) N/A 8.0 μg/m3 (33) 35.0
 
Nov. 10, 2019, 9 a.m. 38.0 ppb (35) 12.0 ppb (11) N/A 26.0 ppb (24) N/A 0.0 ppb (0) N/A 0.31 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 10, 2019, 8 a.m. 40.0 ppb (37) 16.0 ppb (15) N/A 25.0 ppb (23) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 10, 2019, 7 a.m. 41.0 ppb (38) 14.0 ppb (13) N/A 28.0 ppb (26) N/A 0.0 ppb (0) N/A 0.42 ppb (5) N/A 16.0 μg/m3 (59) 59.0
 
Nov. 10, 2019, 6 a.m. 47.0 ppb (44) 17.0 ppb (16) N/A 30.0 ppb (28) N/A 0.0 ppb (0) N/A 0.37 ppb (4) N/A 18.0 μg/m3 (63) 63.0
 
Nov. 10, 2019, 5 a.m. 36.0 ppb (33) 11.0 ppb (10) N/A 25.0 ppb (23) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 16.0 μg/m3 (59) 59.0
 
Nov. 10, 2019, 4 a.m. 33.0 ppb (31) 10.0 ppb (9) N/A 23.0 ppb (21) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 10, 2019, 3 a.m. 33.0 ppb (31) 10.0 ppb (9) N/A 23.0 ppb (21) N/A 0.0 ppb (0) N/A 0.36 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 10, 2019, 2 a.m. 35.0 ppb (32) 12.0 ppb (11) N/A 23.0 ppb (21) N/A 0.0 ppb (0) N/A 0.38 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 10, 2019, 1 a.m. 28.0 ppb (26) 6.0 ppb (6) N/A 22.0 ppb (20) N/A 0.0 ppb (0) N/A 0.29 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Nov. 10, 2019, midnight 31.0 ppb (29) 10.0 ppb (9) N/A 21.0 ppb (19) N/A 0.0 ppb (0) N/A 0.32 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 9, 2019, 11 p.m. 27.0 ppb (25) 8.0 ppb (7) N/A 19.0 ppb (18) N/A 0.0 ppb (0) N/A 0.29 ppb (3) N/A 4.0 μg/m3 (17) 25.0
 
Nov. 9, 2019, 10 p.m. 32.0 ppb (30) 11.0 ppb (10) N/A 22.0 ppb (20) N/A 0.0 ppb (0) N/A 0.25 ppb (3) N/A 1.0 μg/m3 (4) 30.0
 
Nov. 9, 2019, 9 p.m. 26.0 ppb (24) 9.0 ppb (8) N/A 17.0 ppb (16) N/A 0.0 ppb (0) N/A 0.22 ppb (2) N/A 1.0 μg/m3 (4) 24.0
 
Nov. 9, 2019, 8 p.m. 20.0 ppb (19) 9.0 ppb (8) N/A 11.0 ppb (10) N/A 0.0 ppb (0) N/A 0.23 ppb (3) N/A 3.0 μg/m3 (12) 19.0
 
Nov. 9, 2019, 7 p.m. 14.0 ppb (13) 6.0 ppb (6) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A 0.19 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Nov. 9, 2019, 6 p.m. 10.0 ppb (9) 4.0 ppb (4) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.16 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 9, 2019, 5 p.m. 18.0 ppb (17) 9.0 ppb (8) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A 0.18 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 9, 2019, 4 p.m. 14.0 ppb (13) 7.0 ppb (6) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A 0.18 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 9, 2019, 3 p.m. 22.0 ppb (20) 11.0 ppb (10) N/A 10.0 ppb (9) N/A 0.0 ppb (0) N/A 0.21 ppb (2) N/A 3.0 μg/m3 (12) 20.0
 
Nov. 9, 2019, 2 p.m. 15.0 ppb (14) 8.0 ppb (7) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A 0.23 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Nov. 9, 2019, 1 p.m. 34.0 ppb (31) 19.0 ppb (18) N/A 15.0 ppb (14) N/A 0.0 ppb (0) N/A 0.36 ppb (4) N/A 7.0 μg/m3 (29) 31.0
 
Nov. 9, 2019, noon 40.0 ppb (37) 19.0 ppb (18) N/A 21.0 ppb (19) N/A 0.0 ppb (0) N/A 0.28 ppb (3) N/A 8.0 μg/m3 (33) 37.0
 
Nov. 9, 2019, 11 a.m. 52.0 ppb (48) 26.0 ppb (24) N/A 26.0 ppb (24) N/A 0.0 ppb (0) N/A 0.35 ppb (4) N/A 8.0 μg/m3 (33) 48.0
 
Nov. 9, 2019, 10 a.m. 45.0 ppb (42) 20.0 ppb (19) N/A 25.0 ppb (23) N/A 0.0 ppb (0) N/A N/A N/A 7.0 μg/m3 (29) 42.0
 
Nov. 9, 2019, 9 a.m. 31.0 ppb (29) 8.0 ppb (7) N/A 23.0 ppb (21) N/A 0.0 ppb (0) N/A 0.28 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Nov. 9, 2019, 8 a.m. 13.0 ppb (12) 1.0 ppb (1) N/A 12.0 ppb (11) N/A 0.0 ppb (0) N/A 0.17 ppb (2) N/A 2.0 μg/m3 (8) 12.0
 
Nov. 9, 2019, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.19 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
Nov. 9, 2019, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.14 ppb (2) N/A 1.0 μg/m3 (4) 4.0
 
Nov. 9, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.15 ppb (2) N/A 1.0 μg/m3 (4) 4.0
 
Nov. 9, 2019, 4 a.m. 7.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.17 ppb (2) N/A 2.0 μg/m3 (8) 8.0
 
Nov. 9, 2019, 3 a.m. 7.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.16 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
Nov. 9, 2019, 2 a.m. 7.0 ppb (6) 2.0 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A 0.18 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Nov. 9, 2019, 1 a.m. 8.0 ppb (7) 2.0 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.17 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 9, 2019, midnight 10.0 ppb (9) 4.0 ppb (4) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.21 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Nov. 8, 2019, 11 p.m. 13.0 ppb (12) 5.0 ppb (5) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A 0.23 ppb (3) N/A -1.0 μg/m3 (0) 12.0
 
Nov. 8, 2019, 10 p.m. 18.0 ppb (17) 8.0 ppb (7) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A 0.28 ppb (3) N/A -3.0 μg/m3 (0) 17.0
 
Nov. 8, 2019, 9 p.m. 23.0 ppb (21) 11.0 ppb (10) N/A 12.0 ppb (11) N/A 0.0 ppb (0) N/A 0.32 ppb (4) N/A -1.0 μg/m3 (0) 21.0
 
Nov. 8, 2019, 8 p.m. 15.0 ppb (14) 7.0 ppb (6) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A 0.25 ppb (3) N/A 1.0 μg/m3 (4) 14.0
 
Nov. 8, 2019, 7 p.m. 16.0 ppb (15) 8.0 ppb (7) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A 0.23 ppb (3) N/A 2.0 μg/m3 (8) 15.0
 
Nov. 8, 2019, 6 p.m. 15.0 ppb (14) 7.0 ppb (6) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A 0.19 ppb (2) N/A 2.0 μg/m3 (8) 14.0
 
Nov. 8, 2019, 5 p.m. 12.0 ppb (11) 5.0 ppb (5) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.18 ppb (2) N/A 2.0 μg/m3 (8) 11.0
 
Nov. 8, 2019, 4 p.m. 14.0 ppb (13) 7.0 ppb (6) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A 0.17 ppb (2) N/A 2.0 μg/m3 (8) 13.0
 
Nov. 8, 2019, 3 p.m. 14.0 ppb (13) 7.0 ppb (6) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A 0.17 ppb (2) N/A 1.0 μg/m3 (4) 13.0
 
Nov. 8, 2019, 2 p.m. 12.0 ppb (11) 6.0 ppb (6) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.23 ppb (3) N/A 0.0 μg/m3 (0) 11.0
 
Nov. 8, 2019, 1 p.m. 13.0 ppb (12) 6.0 ppb (6) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A 0.27 ppb (3) N/A 2.0 μg/m3 (8) 12.0
 
Nov. 8, 2019, noon 13.0 ppb (12) 6.0 ppb (6) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A 0.22 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Nov. 8, 2019, 11 a.m. 7.0 ppb (6) 3.0 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A 0.16 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 8, 2019, 10 a.m. 8.0 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.14 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
Nov. 8, 2019, 9 a.m. 7.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.14 ppb (2) N/A 2.0 μg/m3 (8) 8.0
 
Nov. 8, 2019, 8 a.m. 6.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.14 ppb (2) N/A 0.0 μg/m3 (0) 6.0
 
Nov. 8, 2019, 7 a.m. 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A 0.14 ppb (2) N/A 2.0 μg/m3 (8) 8.0
 
Nov. 8, 2019, 6 a.m. 8.0 ppb (7) 2.0 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.15 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 8, 2019, 5 a.m. 8.0 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A 0.17 ppb (2) N/A 1.0 μg/m3 (4) 7.0
 
Nov. 8, 2019, 4 a.m. 12.0 ppb (11) 3.0 ppb (3) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A 0.22 ppb (2) N/A N/A 11.0
 
Nov. 8, 2019, 3 a.m. 11.0 ppb (10) 2.0 ppb (2) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 2.0 μg/m3 (8) 10.0
 
Nov. 8, 2019, 2 a.m. 15.0 ppb (14) 3.0 ppb (3) N/A 12.0 ppb (11) N/A 0.0 ppb (0) N/A 0.26 ppb (3) N/A 1.0 μg/m3 (4) 14.0
 
Nov. 8, 2019, 1 a.m. 19.0 ppb (18) 5.0 ppb (5) N/A 14.0 ppb (13) N/A 0.0 ppb (0) N/A 0.27 ppb (3) N/A 2.0 μg/m3 (8) 18.0
 
Nov. 8, 2019, midnight 20.0 ppb (19) 5.0 ppb (5) N/A 15.0 ppb (14) N/A 0.0 ppb (0) N/A 0.31 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Nov. 7, 2019, 11 p.m. 24.0 ppb (22) 5.0 ppb (5) N/A 19.0 ppb (18) N/A 0.0 ppb (0) N/A 0.43 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 7, 2019, 10 p.m. 34.0 ppb (31) 9.0 ppb (8) N/A 24.0 ppb (22) N/A 0.0 ppb (0) N/A 0.52 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 7, 2019, 9 p.m. 37.0 ppb (34) 12.0 ppb (11) N/A 25.0 ppb (23) N/A 0.0 ppb (0) N/A 0.6 ppb (7) N/A 8.0 μg/m3 (33) 34.0
 
Nov. 7, 2019, 8 p.m. 40.0 ppb (37) 16.0 ppb (15) N/A 24.0 ppb (22) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 7.0 μg/m3 (29) 37.0
 
Nov. 7, 2019, 7 p.m. 21.0 ppb (19) 7.0 ppb (6) N/A 14.0 ppb (13) N/A 0.0 ppb (0) N/A 0.34 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Nov. 7, 2019, 6 p.m. 23.0 ppb (21) 7.0 ppb (6) N/A 16.0 ppb (15) N/A 0.0 ppb (0) N/A 0.28 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 7, 2019, 5 p.m. 22.0 ppb (20) 7.0 ppb (6) N/A 15.0 ppb (14) N/A 0.0 ppb (0) N/A 0.28 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 7, 2019, 4 p.m. 31.0 ppb (29) 10.0 ppb (9) N/A 21.0 ppb (19) N/A 0.0 ppb (0) N/A 0.28 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 7, 2019, 3 p.m. 30.0 ppb (28) 9.0 ppb (8) N/A 21.0 ppb (19) N/A 0.0 ppb (0) N/A 0.29 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 7, 2019, 2 p.m. 39.0 ppb (36) 14.0 ppb (13) N/A 24.0 ppb (22) N/A 0.0 ppb (0) N/A 0.38 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 7, 2019, 1 p.m. 51.0 ppb (47) 23.0 ppb (21) N/A 28.0 ppb (26) N/A 1.0 ppb (1) N/A 0.45 ppb (5) N/A 19.0 μg/m3 (65) 65.0
 
Nov. 7, 2019, noon 76.0 ppb (73) 42.0 ppb (39) N/A 34.0 ppb (31) N/A 1.0 ppb (1) N/A 0.6 ppb (7) N/A 21.0 μg/m3 (69) 73.0
 
Nov. 7, 2019, 11 a.m. 55.0 ppb (51) 26.0 ppb (24) N/A 29.0 ppb (27) N/A 0.0 ppb (0) N/A 0.39 ppb (4) N/A 16.0 μg/m3 (59) 59.0
 
Nov. 7, 2019, 10 a.m. 51.0 ppb (47) 21.0 ppb (19) N/A 30.0 ppb (28) N/A 0.0 ppb (0) N/A 0.33 ppb (4) N/A 19.0 μg/m3 (65) 65.0
 
Nov. 7, 2019, 9 a.m. 23.0 ppb (21) 4.0 ppb (4) N/A 19.0 ppb (18) N/A 0.0 ppb (0) N/A 0.23 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 7, 2019, 8 a.m. 29.0 ppb (27) 5.0 ppb (5) N/A 24.0 ppb (22) N/A 0.0 ppb (0) N/A 0.25 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 7, 2019, 7 a.m. 36.0 ppb (33) 9.0 ppb (8) N/A 27.0 ppb (25) N/A 0.0 ppb (0) N/A 0.25 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 7, 2019, 6 a.m. 53.0 ppb (49) 22.0 ppb (20) N/A 31.0 ppb (29) N/A 0.0 ppb (0) N/A 0.32 ppb (4) N/A 11.0 μg/m3 (46) 49.0
 
Nov. 7, 2019, 5 a.m. 58.0 ppb (54) 27.0 ppb (25) N/A 31.0 ppb (29) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 17.0 μg/m3 (61) 61.0
 
Nov. 7, 2019, 4 a.m. 60.0 ppb (56) 27.0 ppb (25) N/A 33.0 ppb (31) N/A 1.0 ppb (1) N/A 0.43 ppb (5) N/A 11.0 μg/m3 (46) 56.0
 
Nov. 7, 2019, 3 a.m. 75.0 ppb (72) 40.0 ppb (37) N/A 34.0 ppb (31) N/A 1.0 ppb (1) N/A 0.46 ppb (5) N/A 17.0 μg/m3 (61) 72.0
 
Nov. 7, 2019, 2 a.m. 61.0 ppb (57) 26.0 ppb (24) N/A 34.0 ppb (31) N/A 0.0 ppb (0) N/A 0.49 ppb (5) N/A 12.0 μg/m3 (50) 57.0
 
Nov. 7, 2019, 1 a.m. 86.0 ppb (84) 48.0 ppb (44) N/A 38.0 ppb (35) N/A 1.0 ppb (1) N/A 0.66 ppb (7) N/A 10.0 μg/m3 (42) 84.0
 
Nov. 7, 2019, midnight 61.0 ppb (57) 26.0 ppb (24) N/A 35.0 ppb (32) N/A 0.0 ppb (0) N/A 0.6 ppb (7) N/A 9.0 μg/m3 (38) 57.0
 
Nov. 6, 2019, 11 p.m. 36.0 ppb (33) 11.0 ppb (10) N/A 25.0 ppb (23) N/A 0.0 ppb (0) N/A 0.41 ppb (5) N/A 5.0 μg/m3 (21) 33.0
 
Nov. 6, 2019, 10 p.m. 30.0 ppb (28) 10.0 ppb (9) N/A 20.0 ppb (19) N/A 0.0 ppb (0) N/A 0.36 ppb (4) N/A 6.0 μg/m3 (25) 28.0
 
Nov. 6, 2019, 9 p.m. 29.0 ppb (27) 11.0 ppb (10) N/A 18.0 ppb (17) N/A 0.0 ppb (0) N/A 0.42 ppb (5) N/A 6.0 μg/m3 (25) 27.0
 
Nov. 6, 2019, 8 p.m. 29.0 ppb (27) 14.0 ppb (13) N/A 15.0 ppb (14) N/A 0.0 ppb (0) N/A 0.35 ppb (4) N/A 4.0 μg/m3 (17) 27.0
 
Nov. 6, 2019, 7 p.m. 15.0 ppb (14) 6.0 ppb (6) N/A 9.0 ppb (8) N/A N/A N/A 0.25 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Nov. 6, 2019, 6 p.m. 14.0 ppb (13) 6.0 ppb (6) N/A 8.0 ppb (7) N/A N/A N/A 0.26 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Nov. 6, 2019, 5 p.m. 10.0 ppb (9) 4.0 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A 0.23 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 6, 2019, 4 p.m. 14.0 ppb (13) 6.0 ppb (6) N/A 8.0 ppb (7) N/A N/A N/A 0.2 ppb (2) N/A 13.0 μg/m3 (52) 52.0
 
Nov. 6, 2019, 3 p.m. 12.0 ppb (11) 5.0 ppb (5) N/A 7.0 ppb (6) N/A N/A N/A 0.18 ppb (2) N/A N/A 11.0
 
Nov. 6, 2019, 2 p.m. 17.0 ppb (16) 8.0 ppb (7) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A 0.21 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 6, 2019, 1 p.m. 37.0 ppb (34) 18.0 ppb (17) N/A 19.0 ppb (18) N/A 0.0 ppb (0) N/A 0.29 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Nov. 6, 2019, noon 56.0 ppb (52) 29.0 ppb (27) N/A 28.0 ppb (26) N/A 0.0 ppb (0) N/A 0.36 ppb (4) N/A 13.0 μg/m3 (52) 52.0
 
Nov. 6, 2019, 11 a.m. 63.0 ppb (60) 31.0 ppb (29) N/A 32.0 ppb (30) N/A 1.0 ppb (1) N/A 0.36 ppb (4) N/A 7.0 μg/m3 (29) 60.0
 
Nov. 6, 2019, 10 a.m. 36.0 ppb (33) 10.0 ppb (9) N/A 26.0 ppb (24) N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 33.0
 
Nov. 6, 2019, 9 a.m. 18.0 ppb (17) 3.0 ppb (3) N/A 15.0 ppb (14) N/A 0.0 ppb (0) N/A 0.23 ppb (3) N/A 2.0 μg/m3 (8) 17.0
 
Nov. 6, 2019, 8 a.m. 11.0 ppb (10) 1.0 ppb (1) N/A 10.0 ppb (9) N/A 0.0 ppb (0) N/A 0.15 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
Nov. 6, 2019, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.17 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Nov. 6, 2019, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.15 ppb (2) N/A 2.0 μg/m3 (8) 8.0
 
Nov. 6, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.16 ppb (2) N/A 3.0 μg/m3 (12) 12.0