ID: 2645

AQSQID: 530530024

Site Name: Tacoma-S 36th St

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

Updated: April 10, 2021, 11:42 a.m.

Location: Tacoma (S End), WA

Reporting: True, Located: True

Current AQI: 13.0

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
April 10, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
April 10, 2021, 9 a.m. 4.4 ppb (5) 1.7 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
April 10, 2021, 8 a.m. 3.9 ppb (4) 1.3 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 4.0
 
April 10, 2021, 7 a.m. 4.3 ppb (5) 1.5 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 5.0
 
April 10, 2021, 6 a.m. 6.7 ppb (7) 2.4 ppb (3) N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
April 10, 2021, 5 a.m. 10.1 ppb (10) 2.9 ppb (3) N/A 7.0 ppb (7) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
April 10, 2021, 4 a.m. 16.3 ppb (16) 4.1 ppb (4) N/A 12.0 ppb (12) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
April 10, 2021, 3 a.m. 17.8 ppb (17) 5.8 ppb (6) N/A 12.0 ppb (12) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
April 10, 2021, 2 a.m. 17.0 ppb (17) 6.5 ppb (7) N/A 11.0 ppb (11) N/A N/A N/A N/A N/A 8.0 μg/m3 (34) 34.0
 
April 10, 2021, 1 a.m. 17.8 ppb (17) 7.6 ppb (8) N/A 10.0 ppb (10) N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
April 10, 2021, midnight 20.2 ppb (20) 9.4 ppb (9) N/A 11.0 ppb (11) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 20.0
 
April 9, 2021, 11 p.m. 23.8 ppb (23) 12.8 ppb (13) N/A 11.0 ppb (11) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 23.0
 
April 9, 2021, 10 p.m. 24.3 ppb (23) 13.3 ppb (13) N/A 11.0 ppb (11) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 23.0
 
April 9, 2021, 9 p.m. 25.8 ppb (25) 14.1 ppb (14) N/A 12.0 ppb (12) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 25.0
 
April 9, 2021, 8 p.m. 23.3 ppb (22) 12.3 ppb (12) N/A 11.0 ppb (11) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 22.0
 
April 9, 2021, 7 p.m. 23.6 ppb (23) 13.1 ppb (13) N/A 10.0 ppb (10) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 23.0
 
April 9, 2021, 6 p.m. 19.6 ppb (19) 9.7 ppb (10) N/A 10.0 ppb (10) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 19.0
 
April 9, 2021, 5 p.m. 22.5 ppb (22) 11.7 ppb (12) N/A 11.0 ppb (11) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 22.0
 
April 9, 2021, 4 p.m. 29.8 ppb (29) 15.6 ppb (15) N/A 14.0 ppb (14) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 29.0
 
April 9, 2021, 3 p.m. 42.0 ppb (40) 23.3 ppb (22) N/A 19.0 ppb (18) N/A N/A N/A N/A N/A 7.0 μg/m3 (30) 40.0
 
April 9, 2021, 2 p.m. 60.0 ppb (58) 36.0 ppb (34) N/A 24.0 ppb (23) N/A N/A N/A N/A N/A 8.0 μg/m3 (34) 58.0
 
April 9, 2021, 1 p.m. 52.4 ppb (50) 28.9 ppb (28) N/A 24.0 ppb (23) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 50.0
 
April 9, 2021, noon 28.2 ppb (27) 8.8 ppb (9) N/A 19.0 ppb (18) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 27.0
 
April 9, 2021, 11 a.m. 38.7 ppb (37) 16.9 ppb (16) N/A 22.0 ppb (21) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 37.0
 
April 9, 2021, 10 a.m. 9.4 ppb (9) 1.4 ppb (2) N/A 8.0 ppb (8) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
April 9, 2021, 9 a.m. 7.9 ppb (8) 0.3 ppb (1) N/A 8.0 ppb (8) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
April 9, 2021, 8 a.m. 10.8 ppb (11) 1.0 ppb (1) N/A 10.0 ppb (10) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
April 9, 2021, 7 a.m. 9.2 ppb (9) 0.6 ppb (1) N/A 9.0 ppb (9) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 9.0
 
April 9, 2021, 6 a.m. 17.0 ppb (17) 3.8 ppb (4) N/A 13.0 ppb (13) N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 17.0
 
April 9, 2021, 5 a.m. 15.0 ppb (15) 4.8 ppb (5) N/A 10.0 ppb (10) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 15.0
 
April 9, 2021, 4 a.m. 13.8 ppb (14) 6.0 ppb (6) N/A 8.0 ppb (8) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 14.0
 
April 9, 2021, 3 a.m. 15.9 ppb (15) 8.1 ppb (8) N/A 8.0 ppb (8) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 15.0
 
April 9, 2021, 2 a.m. 21.6 ppb (21) 10.8 ppb (11) N/A 11.0 ppb (11) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
April 9, 2021, 1 a.m. 23.0 ppb (22) 12.0 ppb (12) N/A 11.0 ppb (11) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 22.0
 
April 9, 2021, midnight 23.4 ppb (23) 13.0 ppb (13) N/A 10.0 ppb (10) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 23.0
 
April 8, 2021, 11 p.m. 25.5 ppb (25) 13.5 ppb (13) N/A 12.0 ppb (12) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 25.0
 
April 8, 2021, 10 p.m. 22.6 ppb (22) 12.2 ppb (12) N/A 10.0 ppb (10) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 22.0
 
April 8, 2021, 9 p.m. 20.8 ppb (20) 11.3 ppb (11) N/A 9.0 ppb (9) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 20.0
 
April 8, 2021, 8 p.m. 19.4 ppb (19) 10.4 ppb (10) N/A 9.0 ppb (9) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 19.0
 
April 8, 2021, 7 p.m. 25.4 ppb (24) 14.6 ppb (14) N/A 11.0 ppb (11) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
April 8, 2021, 6 p.m. 26.2 ppb (25) 14.6 ppb (14) N/A 12.0 ppb (12) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 25.0
 
April 8, 2021, 5 p.m. 24.9 ppb (24) 13.9 ppb (14) N/A 11.0 ppb (11) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 24.0
 
April 8, 2021, 4 p.m. 25.7 ppb (25) 14.2 ppb (14) N/A 12.0 ppb (12) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 25.0
 
April 8, 2021, 3 p.m. 33.1 ppb (32) 20.0 ppb (19) N/A 13.0 ppb (13) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 32.0
 
April 8, 2021, 2 p.m. 55.5 ppb (53) 28.6 ppb (27) N/A 27.0 ppb (26) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 53.0
 
April 8, 2021, 1 p.m. 41.0 ppb (39) 19.2 ppb (19) N/A 22.0 ppb (21) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 39.0
 
April 8, 2021, noon 27.5 ppb (26) 11.4 ppb (11) N/A 16.0 ppb (16) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 26.0
 
April 8, 2021, 11 a.m. 13.6 ppb (13) 6.0 ppb (6) N/A 8.0 ppb (8) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 13.0
 
April 8, 2021, 10 a.m. 6.2 ppb (6) 2.1 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
April 8, 2021, 9 a.m. 3.7 ppb (4) 1.9 ppb (2) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
April 8, 2021, 8 a.m. 4.1 ppb (4) 1.6 ppb (2) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
April 8, 2021, 7 a.m. 4.9 ppb (5) 1.8 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 5.0
 
April 8, 2021, 6 a.m. 11.4 ppb (11) 3.5 ppb (4) N/A 8.0 ppb (8) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 11.0
 
April 8, 2021, 5 a.m. 13.5 ppb (13) 3.9 ppb (4) N/A 10.0 ppb (10) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
April 8, 2021, 4 a.m. 11.3 ppb (11) 4.0 ppb (4) N/A 7.0 ppb (7) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
April 8, 2021, 3 a.m. 14.2 ppb (14) 6.0 ppb (6) N/A 8.0 ppb (8) N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 14.0
 
April 8, 2021, 2 a.m. 15.3 ppb (15) 6.1 ppb (6) N/A 9.0 ppb (9) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 15.0
 
April 8, 2021, 1 a.m. 18.2 ppb (18) 7.7 ppb (8) N/A 11.0 ppb (11) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 18.0
 
April 8, 2021, midnight 20.5 ppb (20) 9.4 ppb (9) N/A 11.0 ppb (11) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 20.0
 
April 7, 2021, 11 p.m. 23.8 ppb (23) 11.7 ppb (12) N/A 12.0 ppb (12) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 23.0
 
April 7, 2021, 10 p.m. 26.6 ppb (26) 13.6 ppb (13) N/A 13.0 ppb (13) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 26.0
 
April 7, 2021, 9 p.m. 22.4 ppb (22) 11.7 ppb (12) N/A 11.0 ppb (11) N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 22.0
 
April 7, 2021, 8 p.m. 20.8 ppb (20) 10.9 ppb (11) N/A 10.0 ppb (10) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 20.0
 
April 7, 2021, 7 p.m. 24.2 ppb (23) 12.7 ppb (12) N/A 12.0 ppb (12) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 23.0
 
April 7, 2021, 6 p.m. 25.9 ppb (25) 13.7 ppb (13) N/A 12.0 ppb (12) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 25.0
 
April 7, 2021, 5 p.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
 
April 7, 2021, 4 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
 
April 7, 2021, 3 p.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
 
April 7, 2021, 2 p.m. 37.4 ppb (36) 17.5 ppb (17) N/A 20.0 ppb (19) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 36.0
 
April 7, 2021, 1 p.m. 30.9 ppb (30) 13.9 ppb (14) N/A 17.0 ppb (17) N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 30.0
 
April 7, 2021, noon 24.7 ppb (24) 11.2 ppb (11) N/A 13.0 ppb (13) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 24.0
 
April 7, 2021, 11 a.m. 18.9 ppb (18) 8.3 ppb (8) N/A 11.0 ppb (11) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 18.0
 
April 7, 2021, 10 a.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
 
April 7, 2021, 9 a.m. 10.3 ppb (10) 3.6 ppb (4) N/A 7.0 ppb (7) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
April 7, 2021, 8 a.m. 11.8 ppb (12) 4.2 ppb (4) N/A 8.0 ppb (8) N/A N/A N/A N/A N/A 8.0 μg/m3 (34) 34.0
 
April 7, 2021, 7 a.m. 12.2 ppb (12) 3.4 ppb (4) N/A 9.0 ppb (9) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
April 7, 2021, 6 a.m. 17.0 ppb (17) 6.2 ppb (6) N/A 11.0 ppb (11) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
April 7, 2021, 5 a.m. 23.0 ppb (22) 9.1 ppb (9) N/A 14.0 ppb (14) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 22.0
 
April 7, 2021, 4 a.m. 24.1 ppb (23) 10.7 ppb (11) N/A 13.0 ppb (13) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
April 7, 2021, 3 a.m. 30.2 ppb (29) 5.0 ppb (5) N/A 25.0 ppb (24) N/A N/A N/A N/A N/A 7.0 μg/m3 (30) 30.0
 
April 7, 2021, 2 a.m. 23.2 ppb (22) 5.2 ppb (5) N/A 18.0 ppb (17) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
April 7, 2021, 1 a.m. 18.7 ppb (18) 6.8 ppb (7) N/A 12.0 ppb (12) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
April 7, 2021, midnight 28.2 ppb (27) 12.3 ppb (12) N/A 16.0 ppb (16) N/A N/A N/A N/A N/A 7.0 μg/m3 (30) 30.0
 
April 6, 2021, 11 p.m. 27.1 ppb (26) 13.4 ppb (13) N/A 14.0 ppb (14) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 26.0
 
April 6, 2021, 10 p.m. 23.0 ppb (22) 11.1 ppb (11) N/A 12.0 ppb (12) N/A N/A N/A N/A N/A 7.0 μg/m3 (30) 30.0
 
April 6, 2021, 9 p.m. 18.2 ppb (18) 8.5 ppb (9) N/A 10.0 ppb (10) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
April 6, 2021, 8 p.m. 21.7 ppb (21) 11.0 ppb (11) N/A 11.0 ppb (11) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
April 6, 2021, 7 p.m. 24.7 ppb (24) 12.7 ppb (12) N/A 12.0 ppb (12) N/A N/A N/A N/A N/A 7.0 μg/m3 (30) 30.0
 
April 6, 2021, 6 p.m. 23.1 ppb (22) 11.6 ppb (11) N/A 12.0 ppb (12) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 22.0
 
April 6, 2021, 5 p.m. 28.8 ppb (28) 15.7 ppb (15) N/A 13.0 ppb (13) N/A N/A N/A N/A N/A 7.0 μg/m3 (30) 30.0
 
April 6, 2021, 4 p.m. 47.8 ppb (46) 29.1 ppb (28) N/A 19.0 ppb (18) N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 46.0
 
April 6, 2021, 3 p.m. 73.3 ppb (72) 50.3 ppb (48) N/A 23.0 ppb (22) N/A N/A N/A N/A N/A 11.0 μg/m3 (46) 72.0
 
April 6, 2021, 2 p.m. 93.0 ppb (93) 65.2 ppb (63) N/A 28.0 ppb (27) N/A N/A N/A N/A N/A 14.0 μg/m3 (55) 93.0
 
April 6, 2021, 1 p.m. 27.4 ppb (26) 10.3 ppb (10) N/A 17.0 ppb (17) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 26.0
 
April 6, 2021, noon 21.5 ppb (21) 3.5 ppb (4) N/A 18.0 ppb (17) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
April 6, 2021, 11 a.m. 43.6 ppb (42) 19.2 ppb (19) N/A 24.0 ppb (23) N/A N/A N/A N/A N/A 8.0 μg/m3 (34) 42.0
 
April 6, 2021, 10 a.m. 27.7 ppb (27) 8.2 ppb (8) N/A 20.0 ppb (19) N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
April 6, 2021, 9 a.m. 13.9 ppb (14) 0.7 ppb (1) N/A 13.0 ppb (13) N/A N/A N/A N/A N/A 7.0 μg/m3 (30) 30.0
 
April 6, 2021, 8 a.m. 9.1 ppb (9) 2.3 ppb (3) N/A 7.0 ppb (7) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
April 6, 2021, 7 a.m. 10.6 ppb (10) 3.4 ppb (4) N/A 7.0 ppb (7) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
April 6, 2021, 6 a.m. 15.3 ppb (15) 6.7 ppb (7) N/A 9.0 ppb (9) N/A N/A N/A N/A N/A 7.0 μg/m3 (30) 30.0
 
April 6, 2021, 5 a.m. 17.0 ppb (17) 7.3 ppb (7) N/A 10.0 ppb (10) N/A N/A N/A N/A N/A 8.0 μg/m3 (34) 34.0
 
April 6, 2021, 4 a.m. 23.1 ppb (22) 11.2 ppb (11) N/A 12.0 ppb (12) N/A N/A N/A N/A N/A 8.0 μg/m3 (34) 34.0
 
April 6, 2021, 3 a.m. 16.6 ppb (16) 3.9 ppb (4) N/A 13.0 ppb (13) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
April 6, 2021, 2 a.m. 15.6 ppb (15) 0.8 ppb (1) N/A 15.0 ppb (15) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
April 6, 2021, 1 a.m. 16.2 ppb (16) 3.8 ppb (4) N/A 12.0 ppb (12) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 16.0
 
April 6, 2021, midnight 21.8 ppb (21) 9.9 ppb (10) N/A 12.0 ppb (12) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 21.0
 
April 5, 2021, 11 p.m. 20.3 ppb (20) 10.0 ppb (10) N/A 10.0 ppb (10) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 20.0
 
April 5, 2021, 10 p.m. 23.0 ppb (22) 12.0 ppb (12) N/A 11.0 ppb (11) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 22.0
 
April 5, 2021, 9 p.m. 24.0 ppb (23) 13.1 ppb (13) N/A 11.0 ppb (11) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
April 5, 2021, 8 p.m. 22.5 ppb (22) 11.9 ppb (12) N/A 11.0 ppb (11) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
April 5, 2021, 7 p.m. 18.7 ppb (18) 9.6 ppb (10) N/A 9.0 ppb (9) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 18.0
 
April 5, 2021, 6 p.m. 19.9 ppb (19) 10.4 ppb (10) N/A 10.0 ppb (10) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 19.0
 
April 5, 2021, 5 p.m. 36.0 ppb (34) 23.8 ppb (23) N/A 12.0 ppb (12) N/A N/A N/A N/A N/A 8.0 μg/m3 (34) 34.0
 
April 5, 2021, 4 p.m. 49.8 ppb (47) 35.6 ppb (34) N/A 14.0 ppb (14) N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 47.0
 
April 5, 2021, 3 p.m. 63.1 ppb (61) 44.6 ppb (43) N/A 18.0 ppb (17) N/A N/A N/A N/A N/A 13.0 μg/m3 (53) 61.0
 
April 5, 2021, 2 p.m. 64.8 ppb (63) 45.3 ppb (43) N/A 19.0 ppb (18) N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 63.0
 
April 5, 2021, 1 p.m. 64.3 ppb (62) 44.4 ppb (42) N/A 20.0 ppb (19) N/A N/A N/A N/A N/A 8.0 μg/m3 (34) 62.0
 
April 5, 2021, noon 75.0 ppb (74) 52.5 ppb (50) N/A 22.0 ppb (21) N/A N/A N/A N/A N/A 15.0 μg/m3 (58) 74.0
 
April 5, 2021, 11 a.m. 60.9 ppb (59) 37.5 ppb (36) N/A 23.0 ppb (22) N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 59.0
 
April 5, 2021, 10 a.m. 42.8 ppb (41) 18.4 ppb (18) N/A 24.0 ppb (23) N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 41.0
 
April 5, 2021, 9 a.m. 35.0 ppb (34) 10.8 ppb (11) N/A 24.0 ppb (23) N/A N/A N/A N/A N/A 8.0 μg/m3 (34) 34.0
 
April 5, 2021, 8 a.m. 25.6 ppb (25) 6.0 ppb (6) N/A 20.0 ppb (19) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 25.0
 
April 5, 2021, 7 a.m. 21.3 ppb (21) 6.8 ppb (7) N/A 15.0 ppb (15) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
April 5, 2021, 6 a.m. 21.8 ppb (21) 8.0 ppb (8) N/A 14.0 ppb (14) N/A N/A N/A N/A N/A 7.0 μg/m3 (30) 30.0
 
April 5, 2021, 5 a.m. 25.0 ppb (24) 9.5 ppb (9) N/A 15.0 ppb (15) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 24.0
 
April 5, 2021, 4 a.m. 22.7 ppb (22) 6.2 ppb (6) N/A 16.0 ppb (16) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 22.0
 
April 5, 2021, 3 a.m. 24.9 ppb (24) 7.1 ppb (7) N/A 18.0 ppb (17) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 24.0
 
April 5, 2021, 2 a.m. 19.1 ppb (19) 7.0 ppb (7) N/A 12.0 ppb (12) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 19.0
 
April 5, 2021, 1 a.m. 15.1 ppb (15) 5.7 ppb (6) N/A 9.0 ppb (9) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 15.0
 
April 5, 2021, midnight 11.9 ppb (12) 5.8 ppb (6) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
April 4, 2021, 11 p.m. 12.0 ppb (12) 5.8 ppb (6) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
April 4, 2021, 10 p.m. 13.3 ppb (13) 6.8 ppb (7) N/A 7.0 ppb (7) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
April 4, 2021, 9 p.m. 10.9 ppb (11) 4.9 ppb (5) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 11.0
 
April 4, 2021, 8 p.m. 9.0 ppb (9) 3.8 ppb (4) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 9.0
 
April 4, 2021, 7 p.m. 11.9 ppb (12) 5.7 ppb (6) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 12.0
 
April 4, 2021, 6 p.m. 11.8 ppb (12) 6.3 ppb (6) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 12.0
 
April 4, 2021, 5 p.m. 14.0 ppb (14) 7.1 ppb (7) N/A 7.0 ppb (7) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 14.0
 
April 4, 2021, 4 p.m. 10.8 ppb (11) 2.7 ppb (3) N/A 8.0 ppb (8) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 11.0
 
April 4, 2021, 3 p.m. 5.9 ppb (6) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 6.0
 
April 4, 2021, 2 p.m. 6.8 ppb (7) 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
April 4, 2021, 1 p.m. 5.9 ppb (6) 0.4 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
April 4, 2021, noon 4.5 ppb (5) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
April 4, 2021, 11 a.m. 6.3 ppb (6) 0.2 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
April 4, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (30) 30.0
 
April 4, 2021, 9 a.m. 4.9 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 8.0 μg/m3 (34) 34.0
 
April 4, 2021, 8 a.m. 8.4 ppb (8) 1.7 ppb (2) N/A 7.0 ppb (7) N/A N/A N/A N/A N/A 13.0 μg/m3 (53) 53.0
 
April 4, 2021, 7 a.m. 12.6 ppb (12) 3.3 ppb (4) N/A 9.0 ppb (9) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
April 4, 2021, 6 a.m. 12.4 ppb (12) 4.9 ppb (5) N/A 8.0 ppb (8) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
April 4, 2021, 5 a.m. 17.1 ppb (17) 6.8 ppb (7) N/A 10.0 ppb (10) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
April 4, 2021, 4 a.m. 12.8 ppb (13) 5.4 ppb (6) N/A 7.0 ppb (7) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
April 4, 2021, 3 a.m. 17.9 ppb (17) 9.0 ppb (9) N/A 9.0 ppb (9) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
April 4, 2021, 2 a.m. 16.9 ppb (16) 8.5 ppb (9) N/A 8.0 ppb (8) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 16.0
 
April 4, 2021, 1 a.m. 18.2 ppb (18) 9.6 ppb (10) N/A 9.0 ppb (9) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 18.0
 
April 4, 2021, midnight 16.5 ppb (16) 9.1 ppb (9) N/A 7.0 ppb (7) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 16.0
 
April 3, 2021, 11 p.m. 15.8 ppb (15) 9.1 ppb (9) N/A 7.0 ppb (7) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 15.0
 
April 3, 2021, 10 p.m. 18.5 ppb (18) 10.3 ppb (10) N/A 8.0 ppb (8) N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 18.0
 
April 3, 2021, 9 p.m. 21.7 ppb (21) 12.1 ppb (12) N/A 10.0 ppb (10) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 21.0
 
April 3, 2021, 8 p.m. 15.9 ppb (15) 8.2 ppb (8) N/A 8.0 ppb (8) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 15.0
 
April 3, 2021, 7 p.m. 16.5 ppb (16) 8.2 ppb (8) N/A 8.0 ppb (8) N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 16.0
 
April 3, 2021, 6 p.m. 11.1 ppb (11) 4.6 ppb (5) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
April 3, 2021, 5 p.m. 22.7 ppb (22) 12.1 ppb (12) N/A 11.0 ppb (11) N/A N/A N/A N/A N/A 7.0 μg/m3 (30) 30.0
 
April 3, 2021, 4 p.m. 26.2 ppb (25) 14.4 ppb (14) N/A 12.0 ppb (12) N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
April 3, 2021, 3 p.m. 39.4 ppb (38) 25.6 ppb (25) N/A 14.0 ppb (14) N/A N/A N/A N/A N/A 15.0 μg/m3 (58) 58.0
 
April 3, 2021, 2 p.m. 41.8 ppb (40) 25.3 ppb (24) N/A 16.0 ppb (16) N/A N/A N/A N/A N/A 16.0 μg/m3 (60) 60.0
 
April 3, 2021, 1 p.m. 36.7 ppb (35) 17.8 ppb (17) N/A 19.0 ppb (18) N/A N/A N/A N/A N/A 21.0 μg/m3 (70) 70.0
 
April 3, 2021, noon 47.2 ppb (45) 21.7 ppb (21) N/A 26.0 ppb (25) N/A N/A N/A N/A N/A 21.0 μg/m3 (70) 70.0
 
April 3, 2021, 11 a.m. 55.0 ppb (53) 28.9 ppb (28) N/A 26.0 ppb (25) N/A N/A N/A N/A N/A 20.0 μg/m3 (68) 68.0