ID: 2645

AQSQID: 530530024

Site Name: Tacoma-S 36th St

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

Updated: Sept. 25, 2020, 3:40 p.m.

Location: Tacoma (S End), WA

Reporting: True, Located: True

Current AQI: 12.0

Tacoma (S End) WA, US: 47.22634, -122.46256

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 25, 2020, 2 p.m. 6.5 ppb (6) 1.2 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 25, 2020, 1 p.m. 20.5 ppb (19) 6.0 ppb (6) N/A 15.0 ppb (14) N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 19.0
 
Sept. 25, 2020, noon 35.8 ppb (33) 17.2 ppb (16) N/A 19.0 ppb (18) N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 33.0
 
Sept. 25, 2020, 11 a.m. 13.2 ppb (12) 2.8 ppb (3) N/A 10.0 ppb (9) N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 12.0
 
Sept. 25, 2020, 10 a.m. 2.9 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 25, 2020, 9 a.m. 6.9 ppb (6) 1.6 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 25, 2020, 8 a.m. 5.9 ppb (5) 1.1 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
Sept. 25, 2020, 7 a.m. 7.5 ppb (7) 1.8 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 25, 2020, 6 a.m. 16.4 ppb (15) 5.1 ppb (5) N/A 11.0 ppb (10) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 25, 2020, 5 a.m. 19.8 ppb (18) 8.8 ppb (8) N/A 11.0 ppb (10) N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
Sept. 25, 2020, 4 a.m. 21.0 ppb (19) 8.7 ppb (8) N/A 12.0 ppb (11) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 25, 2020, 3 a.m. 29.9 ppb (28) 14.6 ppb (14) N/A 15.0 ppb (14) N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Sept. 25, 2020, 2 a.m. 41.8 ppb (39) 22.1 ppb (20) N/A 20.0 ppb (19) N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 39.0
 
Sept. 25, 2020, 1 a.m. 19.5 ppb (18) 8.2 ppb (8) N/A 11.0 ppb (10) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
Sept. 25, 2020, midnight 26.5 ppb (25) 12.6 ppb (12) N/A 14.0 ppb (13) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 24, 2020, 11 p.m. 25.6 ppb (24) 13.4 ppb (12) N/A 12.0 ppb (11) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 24, 2020, 10 p.m. 28.9 ppb (27) 15.5 ppb (14) N/A 13.0 ppb (12) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 27.0
 
Sept. 24, 2020, 9 p.m. 27.6 ppb (26) 14.8 ppb (14) N/A 13.0 ppb (12) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 26.0
 
Sept. 24, 2020, 8 p.m. 23.8 ppb (22) 11.9 ppb (11) N/A 12.0 ppb (11) N/A N/A N/A N/A N/A N/A 22.0
 
Sept. 24, 2020, 7 p.m. 26.8 ppb (25) 15.8 ppb (15) N/A 11.0 ppb (10) N/A N/A N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
Sept. 24, 2020, 6 p.m. 40.7 ppb (38) 24.6 ppb (23) N/A 16.0 ppb (15) N/A N/A N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
Sept. 24, 2020, 5 p.m. 23.6 ppb (22) 13.3 ppb (12) N/A 10.0 ppb (9) N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Sept. 24, 2020, 4 p.m. 25.5 ppb (24) 13.8 ppb (13) N/A 12.0 ppb (11) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
Sept. 24, 2020, 3 p.m. 34.3 ppb (32) 19.8 ppb (18) N/A 14.0 ppb (13) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 32.0
 
Sept. 24, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
Sept. 24, 2020, 1 p.m. 36.3 ppb (34) 19.4 ppb (18) N/A 17.0 ppb (16) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 34.0
 
Sept. 24, 2020, noon 25.2 ppb (23) 10.9 ppb (10) N/A 14.0 ppb (13) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 23.0
 
Sept. 24, 2020, 11 a.m. 22.4 ppb (21) 8.1 ppb (8) N/A 14.0 ppb (13) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 21.0
 
Sept. 24, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
Sept. 24, 2020, 9 a.m. 8.4 ppb (8) 2.5 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 8.0
 
Sept. 24, 2020, 8 a.m. 8.1 ppb (8) 2.1 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 8.0
 
Sept. 24, 2020, 7 a.m. 8.9 ppb (8) 2.4 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
Sept. 24, 2020, 6 a.m. 8.7 ppb (8) 2.5 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 24, 2020, 5 a.m. 9.6 ppb (9) 3.6 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 24, 2020, 4 a.m. 10.1 ppb (9) 3.6 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 24, 2020, 3 a.m. 14.4 ppb (13) 5.2 ppb (5) N/A 9.0 ppb (8) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 24, 2020, 2 a.m. 25.1 ppb (23) 12.0 ppb (11) N/A 13.0 ppb (12) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 23.0
 
Sept. 24, 2020, 1 a.m. 21.1 ppb (20) 7.5 ppb (7) N/A 14.0 ppb (13) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 20.0
 
Sept. 24, 2020, midnight 8.7 ppb (8) 2.2 ppb (2) N/A 7.0 ppb (6) N/A N/A N/A N/A N/A 1.0 μg/m3 (4) 8.0
 
Sept. 23, 2020, 11 p.m. 10.4 ppb (10) 3.2 ppb (3) N/A 7.0 ppb (6) N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 10.0
 
Sept. 23, 2020, 10 p.m. 25.5 ppb (24) 12.9 ppb (12) N/A 13.0 ppb (12) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 24.0
 
Sept. 23, 2020, 9 p.m. 9.3 ppb (9) 3.5 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 23, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
Sept. 23, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 23, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 23, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A -1.0 μg/m3 (0) N/A
Sept. 23, 2020, 4 p.m. 12.7 ppb (12) 5.8 ppb (5) N/A 7.0 ppb (6) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 23, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 23, 2020, 2 p.m. 43.3 ppb (40) 24.2 ppb (22) N/A 19.0 ppb (18) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 40.0
 
Sept. 23, 2020, 1 p.m. 3.1 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 23, 2020, noon 11.2 ppb (10) 2.7 ppb (3) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
Sept. 23, 2020, 11 a.m. 21.1 ppb (20) 9.2 ppb (9) N/A 12.0 ppb (11) N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
Sept. 23, 2020, 10 a.m. 14.6 ppb (14) 4.9 ppb (5) N/A 10.0 ppb (9) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
Sept. 23, 2020, 9 a.m. 8.6 ppb (8) 0.3 ppb (0) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 23, 2020, 8 a.m. 18.8 ppb (17) 2.8 ppb (3) N/A 16.0 ppb (15) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 23, 2020, 7 a.m. 18.2 ppb (17) 3.0 ppb (3) N/A 15.0 ppb (14) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
Sept. 23, 2020, 6 a.m. 18.7 ppb (17) 4.4 ppb (4) N/A 14.0 ppb (13) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 23, 2020, 5 a.m. 27.4 ppb (25) 11.6 ppb (11) N/A 16.0 ppb (15) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
Sept. 23, 2020, 4 a.m. 29.8 ppb (28) 13.2 ppb (12) N/A 17.0 ppb (16) N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 28.0
 
Sept. 23, 2020, 3 a.m. 14.8 ppb (14) 4.4 ppb (4) N/A 10.0 ppb (9) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 14.0
 
Sept. 23, 2020, 2 a.m. 32.3 ppb (30) 16.5 ppb (15) N/A 16.0 ppb (15) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 30.0
 
Sept. 23, 2020, 1 a.m. 28.9 ppb (27) 15.9 ppb (15) N/A 13.0 ppb (12) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 27.0
 
Sept. 23, 2020, midnight 34.2 ppb (32) 19.0 ppb (18) N/A 15.0 ppb (14) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 32.0
 
Sept. 22, 2020, 11 p.m. 31.7 ppb (29) 16.4 ppb (15) N/A 15.0 ppb (14) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 29.0
 
Sept. 22, 2020, 10 p.m. 28.9 ppb (27) 16.9 ppb (16) N/A 12.0 ppb (11) N/A N/A N/A N/A N/A 1.0 μg/m3 (4) 27.0
 
Sept. 22, 2020, 9 p.m. 33.2 ppb (31) 19.1 ppb (18) N/A 14.0 ppb (13) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 31.0
 
Sept. 22, 2020, 8 p.m. 25.9 ppb (24) 15.3 ppb (14) N/A 11.0 ppb (10) N/A N/A N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
Sept. 22, 2020, 7 p.m. 19.5 ppb (18) 11.2 ppb (10) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A N/A 18.0
 
Sept. 22, 2020, 6 p.m. 30.3 ppb (28) 19.6 ppb (18) N/A 11.0 ppb (10) N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 28.0
 
Sept. 22, 2020, 5 p.m. 26.0 ppb (24) 16.5 ppb (15) N/A 10.0 ppb (9) N/A N/A N/A N/A N/A 1.0 μg/m3 (4) 24.0
 
Sept. 22, 2020, 4 p.m. 22.0 ppb (20) 13.7 ppb (13) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 20.0
 
Sept. 22, 2020, 3 p.m. 35.1 ppb (32) 23.7 ppb (22) N/A 11.0 ppb (10) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 32.0
 
Sept. 22, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 22, 2020, 1 p.m. 35.0 ppb (32) 24.2 ppb (22) N/A 11.0 ppb (10) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 32.0
 
Sept. 22, 2020, noon 30.7 ppb (28) 19.4 ppb (18) N/A 11.0 ppb (10) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 28.0
 
Sept. 22, 2020, 11 a.m. 25.5 ppb (24) 16.0 ppb (15) N/A 10.0 ppb (9) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 24.0
 
Sept. 22, 2020, 10 a.m. 13.8 ppb (13) 5.2 ppb (5) N/A 9.0 ppb (8) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 22, 2020, 9 a.m. 10.3 ppb (10) 3.1 ppb (3) N/A 7.0 ppb (6) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 22, 2020, 8 a.m. 10.3 ppb (10) 3.4 ppb (3) N/A 7.0 ppb (6) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 22, 2020, 7 a.m. 10.9 ppb (10) 4.6 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 22, 2020, 6 a.m. 11.7 ppb (11) 6.3 ppb (6) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 22, 2020, 5 a.m. 15.9 ppb (15) 8.2 ppb (8) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
Sept. 22, 2020, 4 a.m. 19.3 ppb (18) 10.2 ppb (9) N/A 9.0 ppb (8) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 22, 2020, 3 a.m. 25.4 ppb (24) 13.8 ppb (13) N/A 12.0 ppb (11) N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
Sept. 22, 2020, 2 a.m. 33.5 ppb (31) 16.9 ppb (16) N/A 17.0 ppb (16) N/A N/A N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
Sept. 22, 2020, 1 a.m. 39.4 ppb (36) 21.6 ppb (20) N/A 18.0 ppb (17) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 36.0
 
Sept. 22, 2020, midnight 36.2 ppb (34) 18.9 ppb (18) N/A 17.0 ppb (16) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 34.0
 
Sept. 21, 2020, 11 p.m. 35.4 ppb (33) 21.3 ppb (20) N/A 14.0 ppb (13) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 33.0
 
Sept. 21, 2020, 10 p.m. 33.3 ppb (31) 20.0 ppb (19) N/A 13.0 ppb (12) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 31.0
 
Sept. 21, 2020, 9 p.m. 36.7 ppb (34) 22.5 ppb (21) N/A 14.0 ppb (13) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 34.0
 
Sept. 21, 2020, 8 p.m. 35.0 ppb (32) 23.6 ppb (22) N/A 11.0 ppb (10) N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Sept. 21, 2020, 7 p.m. 52.5 ppb (49) 38.1 ppb (35) N/A 14.0 ppb (13) N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 49.0
 
Sept. 21, 2020, 6 p.m. 47.9 ppb (44) 34.7 ppb (32) N/A 13.0 ppb (12) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 44.0
 
Sept. 21, 2020, 5 p.m. 41.2 ppb (38) 29.3 ppb (27) N/A 12.0 ppb (11) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 38.0
 
Sept. 21, 2020, 4 p.m. 58.3 ppb (55) 47.6 ppb (44) N/A 11.0 ppb (10) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 55.0
 
Sept. 21, 2020, 3 p.m. 37.9 ppb (35) 29.3 ppb (27) N/A 9.0 ppb (8) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 35.0
 
Sept. 21, 2020, 2 p.m. 33.5 ppb (31) 25.8 ppb (24) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
Sept. 21, 2020, 1 p.m. 66.5 ppb (63) 56.1 ppb (52) N/A 10.0 ppb (9) N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 63.0
 
Sept. 21, 2020, noon 67.3 ppb (64) 56.0 ppb (52) N/A 11.0 ppb (10) N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 64.0
 
Sept. 21, 2020, 11 a.m. 79.9 ppb (78) 65.0 ppb (62) N/A 15.0 ppb (14) N/A N/A N/A N/A N/A 14.0 μg/m3 (54) 78.0
 
Sept. 21, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Sept. 21, 2020, 9 a.m. 63.2 ppb (60) 45.5 ppb (42) N/A 18.0 ppb (17) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 60.0
 
Sept. 21, 2020, 8 a.m. 66.7 ppb (64) 46.2 ppb (43) N/A 20.0 ppb (19) N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 64.0
 
Sept. 21, 2020, 7 a.m. 53.2 ppb (49) 30.0 ppb (28) N/A 23.0 ppb (21) N/A N/A N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
Sept. 21, 2020, 6 a.m. 31.7 ppb (29) 7.2 ppb (7) N/A 24.0 ppb (22) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
Sept. 21, 2020, 5 a.m. 45.4 ppb (42) 22.8 ppb (21) N/A 23.0 ppb (21) N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Sept. 21, 2020, 4 a.m. 55.4 ppb (51) 31.8 ppb (29) N/A 24.0 ppb (22) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 51.0
 
Sept. 21, 2020, 3 a.m. 30.6 ppb (28) 8.9 ppb (8) N/A 22.0 ppb (20) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
Sept. 21, 2020, 2 a.m. 13.4 ppb (12) 2.2 ppb (2) N/A 11.0 ppb (10) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 21, 2020, 1 a.m. 22.9 ppb (21) 10.9 ppb (10) N/A 12.0 ppb (11) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 21.0
 
Sept. 21, 2020, midnight 23.6 ppb (22) 12.9 ppb (12) N/A 11.0 ppb (10) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 22.0
 
Sept. 20, 2020, 11 p.m. 21.9 ppb (20) 11.7 ppb (11) N/A 10.0 ppb (9) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 20, 2020, 10 p.m. 17.3 ppb (16) 8.8 ppb (8) N/A 9.0 ppb (8) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 20, 2020, 9 p.m. 14.2 ppb (13) 5.5 ppb (5) N/A 9.0 ppb (8) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 13.0
 
Sept. 20, 2020, 8 p.m. 13.7 ppb (13) 5.3 ppb (5) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 13.0
 
Sept. 20, 2020, 7 p.m. 14.1 ppb (13) 7.7 ppb (7) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 20, 2020, 6 p.m. 18.9 ppb (18) 9.7 ppb (9) N/A 9.0 ppb (8) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 18.0
 
Sept. 20, 2020, 5 p.m. 15.8 ppb (15) 7.6 ppb (7) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 15.0
 
Sept. 20, 2020, 4 p.m. 14.8 ppb (14) 6.6 ppb (6) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 20, 2020, 3 p.m. 15.6 ppb (14) 5.9 ppb (5) N/A 10.0 ppb (9) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 20, 2020, 2 p.m. 13.1 ppb (12) 5.4 ppb (5) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 20, 2020, 1 p.m. 9.7 ppb (9) 3.0 ppb (3) N/A 7.0 ppb (6) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 20, 2020, noon 8.7 ppb (8) 2.8 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 20, 2020, 11 a.m. 7.8 ppb (7) 2.4 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
Sept. 20, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 20, 2020, 9 a.m. 6.1 ppb (6) 2.3 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 1.0 μg/m3 (4) 6.0
 
Sept. 20, 2020, 8 a.m. 5.6 ppb (5) 1.7 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 5.0
 
Sept. 20, 2020, 7 a.m. 9.6 ppb (9) 3.4 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 1.0 μg/m3 (4) 9.0
 
Sept. 20, 2020, 6 a.m. 9.0 ppb (8) 3.3 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
Sept. 20, 2020, 5 a.m. 12.7 ppb (12) 4.9 ppb (5) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 20, 2020, 4 a.m. 15.7 ppb (15) 8.3 ppb (8) N/A 7.0 ppb (6) N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 15.0
 
Sept. 20, 2020, 3 a.m. 14.6 ppb (14) 7.9 ppb (7) N/A 7.0 ppb (6) N/A N/A N/A N/A N/A 1.0 μg/m3 (4) 14.0
 
Sept. 20, 2020, 2 a.m. 14.6 ppb (14) 7.9 ppb (7) N/A 7.0 ppb (6) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 14.0
 
Sept. 20, 2020, 1 a.m. 13.6 ppb (13) 7.5 ppb (7) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 20, 2020, midnight 12.8 ppb (12) 8.0 ppb (7) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 19, 2020, 11 p.m. 15.9 ppb (15) 9.0 ppb (8) N/A 7.0 ppb (6) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 19, 2020, 10 p.m. 17.2 ppb (16) 10.4 ppb (10) N/A 7.0 ppb (6) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 19, 2020, 9 p.m. 18.3 ppb (17) 10.6 ppb (10) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 17.0
 
Sept. 19, 2020, 8 p.m. 17.6 ppb (16) 9.6 ppb (9) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 16.0
 
Sept. 19, 2020, 7 p.m. 16.8 ppb (16) 9.4 ppb (9) N/A 7.0 ppb (6) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 19, 2020, 6 p.m. 17.9 ppb (17) 9.1 ppb (8) N/A 9.0 ppb (8) N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
Sept. 19, 2020, 5 p.m. 18.9 ppb (18) 10.7 ppb (10) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 19, 2020, 4 p.m. 17.9 ppb (17) 10.2 ppb (9) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 19, 2020, 3 p.m. 20.9 ppb (19) 11.6 ppb (11) N/A 9.0 ppb (8) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 19.0
 
Sept. 19, 2020, 2 p.m. 20.8 ppb (19) 12.1 ppb (11) N/A 9.0 ppb (8) N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 19.0
 
Sept. 19, 2020, 1 p.m. 11.8 ppb (11) 5.8 ppb (5) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 19, 2020, noon 9.7 ppb (9) 4.6 ppb (4) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 19, 2020, 11 a.m. 8.7 ppb (8) 3.9 ppb (4) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
Sept. 19, 2020, 10 a.m. 7.3 ppb (7) 3.1 ppb (3) N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
Sept. 19, 2020, 9 a.m. 8.1 ppb (8) 3.4 ppb (3) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 19, 2020, 8 a.m. 8.7 ppb (8) 3.4 ppb (3) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 19, 2020, 7 a.m. 10.7 ppb (10) 4.6 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 19, 2020, 6 a.m. 10.1 ppb (9) 4.6 ppb (4) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 19, 2020, 5 a.m. 11.8 ppb (11) 6.3 ppb (6) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Sept. 19, 2020, 4 a.m. 15.8 ppb (15) 9.1 ppb (8) N/A 7.0 ppb (6) N/A N/A N/A N/A N/A 13.0 μg/m3 (52) 52.0
 
Sept. 19, 2020, 3 a.m. 19.7 ppb (18) 11.9 ppb (11) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A 15.0 μg/m3 (56) 56.0
 
Sept. 19, 2020, 2 a.m. 26.9 ppb (25) 14.2 ppb (13) N/A 13.0 ppb (12) N/A N/A N/A N/A N/A 26.0 μg/m3 (80) 80.0
 
Sept. 19, 2020, 1 a.m. 26.6 ppb (25) 13.1 ppb (12) N/A 14.0 ppb (13) N/A N/A N/A N/A N/A 33.0 μg/m3 (95) 95.0
 
Sept. 19, 2020, midnight 19.9 ppb (18) 8.6 ppb (8) N/A 11.0 ppb (10) N/A N/A N/A N/A N/A 28.0 μg/m3 (84) 84.0
 
Sept. 18, 2020, 11 p.m. 15.2 ppb (14) 5.7 ppb (5) N/A 10.0 ppb (9) N/A N/A N/A N/A N/A 33.0 μg/m3 (95) 95.0
 
Sept. 18, 2020, 10 p.m. 29.1 ppb (27) 15.4 ppb (14) N/A 14.0 ppb (13) N/A N/A N/A N/A N/A 30.0 μg/m3 (88) 88.0
 
Sept. 18, 2020, 9 p.m. 38.0 ppb (35) 22.2 ppb (21) N/A 16.0 ppb (15) N/A N/A N/A N/A N/A 35.0 μg/m3 (99) 99.0
 
Sept. 18, 2020, 8 p.m. 42.0 ppb (39) 26.1 ppb (24) N/A 16.0 ppb (15) N/A N/A N/A N/A N/A 39.0 μg/m3 (109) 109.0
 
Sept. 18, 2020, 7 p.m. 39.3 ppb (36) 25.1 ppb (23) N/A 14.0 ppb (13) N/A N/A N/A N/A N/A 38.0 μg/m3 (106) 106.0
 
Sept. 18, 2020, 6 p.m. 38.1 ppb (35) 25.3 ppb (23) N/A 13.0 ppb (12) N/A N/A N/A N/A N/A 41.0 μg/m3 (114) 114.0
 
Sept. 18, 2020, 5 p.m. 47.9 ppb (44) 33.0 ppb (31) N/A 15.0 ppb (14) N/A N/A N/A N/A N/A 57.0 μg/m3 (151) 151.0
 
Sept. 18, 2020, 4 p.m. 38.3 ppb (35) 24.4 ppb (23) N/A 14.0 ppb (13) N/A N/A N/A N/A N/A 59.0 μg/m3 (152) 152.0
 
Sept. 18, 2020, 3 p.m. 25.1 ppb (23) 11.6 ppb (11) N/A 13.0 ppb (12) N/A N/A N/A N/A N/A 57.0 μg/m3 (151) 151.0