ID: 472

AQSQID: 245100040

Site Name: Oldtown

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

Updated: Aug. 8, 2020, 1:43 p.m.

Location: Baltimore (Old Town), MD

Reporting: True, Located: True

Current AQI: 8.0

Baltimore (Old Town) MD, US: 39.2981, -76.604698

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 25, 2020, 3 a.m. 19.1 ppb (18) 2.5 ppb (2) N/A 17.0 ppb (16) N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
July 25, 2020, 2 a.m. 16.5 ppb (15) 1.8 ppb (2) N/A 15.0 ppb (14) N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
July 25, 2020, 1 a.m. 18.7 ppb (17) 1.3 ppb (1) N/A 17.0 ppb (16) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
July 25, 2020, midnight 18.8 ppb (17) 1.9 ppb (2) N/A 17.0 ppb (16) N/A N/A N/A N/A N/A 1.0 μg/m3 (4) 17.0
 
July 24, 2020, 11 p.m. 9.3 ppb (9) 0.8 ppb (1) N/A 9.0 ppb (8) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
July 24, 2020, 10 p.m. 7.3 ppb (7) 1.4 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
 
July 24, 2020, 9 p.m. 11.0 ppb (10) 1.9 ppb (2) N/A 9.0 ppb (8) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
July 24, 2020, 8 p.m. 12.8 ppb (12) 2.4 ppb (2) N/A 10.0 ppb (9) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
July 24, 2020, 7 p.m. 11.3 ppb (10) 2.0 ppb (2) N/A 9.0 ppb (8) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
July 24, 2020, 6 p.m. 7.0 ppb (6) 1.8 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
July 24, 2020, 5 p.m. 5.3 ppb (5) 1.2 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
July 24, 2020, 4 p.m. 4.7 ppb (4) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
July 24, 2020, 3 p.m. 7.0 ppb (6) 1.7 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
July 24, 2020, 2 p.m. 12.2 ppb (11) 3.0 ppb (3) N/A 9.0 ppb (8) N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 11.0
 
July 24, 2020, 1 p.m. 10.9 ppb (10) 2.7 ppb (3) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
July 24, 2020, noon 10.2 ppb (9) 2.1 ppb (2) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
July 24, 2020, 11 a.m. 10.9 ppb (10) 2.3 ppb (2) N/A 9.0 ppb (8) N/A N/A N/A N/A N/A 1.0 μg/m3 (4) 10.0
 
July 24, 2020, 10 a.m. 9.5 ppb (9) 1.2 ppb (1) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 9.0
 
July 24, 2020, 9 a.m. 10.9 ppb (10) 1.2 ppb (1) N/A 10.0 ppb (9) N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 10.0
 
July 24, 2020, 8 a.m. 5.5 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
July 24, 2020, 7 a.m. 6.0 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
July 24, 2020, 6 a.m. 6.8 ppb (6) 0.2 ppb (0) N/A 7.0 ppb (6) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
July 24, 2020, 5 a.m. 5.1 ppb (5) 0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
July 24, 2020, 4 a.m. 5.7 ppb (5) 0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 5.0
 
July 24, 2020, 3 a.m. 6.8 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
July 24, 2020, 2 a.m. 7.6 ppb (7) 0.6 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
July 24, 2020, 1 a.m. 9.4 ppb (9) 0.6 ppb (1) N/A 9.0 ppb (8) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
July 24, 2020, midnight 10.6 ppb (10) 1.4 ppb (1) N/A 9.0 ppb (8) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
July 23, 2020, 11 p.m. 8.2 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
July 23, 2020, 10 p.m. 6.8 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
July 23, 2020, 9 p.m. 4.4 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
July 23, 2020, 8 p.m. 6.1 ppb (6) 1.1 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
July 23, 2020, 7 p.m. 7.0 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
 
July 23, 2020, 6 p.m. 8.3 ppb (8) 1.8 ppb (2) N/A 7.0 ppb (6) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
July 23, 2020, 5 p.m. 5.1 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
July 23, 2020, 4 p.m. 6.2 ppb (6) 1.3 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
 
July 23, 2020, 3 p.m. 6.5 ppb (6) 1.4 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
July 23, 2020, 2 p.m. 16.6 ppb (15) 4.7 ppb (4) N/A 12.0 ppb (11) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
July 23, 2020, 1 p.m. 28.8 ppb (27) 13.2 ppb (12) N/A 16.0 ppb (15) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 27.0
 
July 23, 2020, noon 17.8 ppb (16) 5.6 ppb (5) N/A 12.0 ppb (11) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
July 23, 2020, 11 a.m. 13.2 ppb (12) 3.8 ppb (4) N/A 9.0 ppb (8) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
July 23, 2020, 10 a.m. 15.2 ppb (14) 1.7 ppb (2) N/A 13.0 ppb (12) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
July 23, 2020, 9 a.m. 14.9 ppb (14) 1.1 ppb (1) N/A 14.0 ppb (13) N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 14.0
 
July 23, 2020, 8 a.m. 14.0 ppb (13) 0.7 ppb (1) N/A 13.0 ppb (12) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
July 23, 2020, 7 a.m. 11.4 ppb (11) 1.1 ppb (1) N/A 10.0 ppb (9) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
July 23, 2020, 6 a.m. 6.8 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
July 23, 2020, 5 a.m. 9.6 ppb (9) 0.6 ppb (1) N/A 9.0 ppb (8) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
July 23, 2020, 4 a.m. 13.9 ppb (13) 0.8 ppb (1) N/A 13.0 ppb (12) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
July 23, 2020, 3 a.m. 12.6 ppb (12) 1.2 ppb (1) N/A 11.0 ppb (10) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
July 23, 2020, 2 a.m. 10.5 ppb (10) 0.7 ppb (1) N/A 10.0 ppb (9) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
July 23, 2020, 1 a.m. 9.7 ppb (9) 0.4 ppb (0) N/A 9.0 ppb (8) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
July 23, 2020, midnight 16.8 ppb (16) 2.2 ppb (2) N/A 15.0 ppb (14) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
July 22, 2020, 11 p.m. 15.0 ppb (14) 1.9 ppb (2) N/A 13.0 ppb (12) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
July 22, 2020, 10 p.m. 18.0 ppb (17) 1.2 ppb (1) N/A 17.0 ppb (16) N/A N/A N/A N/A N/A 1.0 μg/m3 (4) 17.0
 
July 22, 2020, 9 p.m. 14.2 ppb (13) 3.1 ppb (3) N/A 11.0 ppb (10) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
July 22, 2020, 8 p.m. 9.6 ppb (9) 1.7 ppb (2) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A 13.0 μg/m3 (52) 52.0
 
July 22, 2020, 7 p.m. 9.8 ppb (9) 1.6 ppb (1) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
July 22, 2020, 6 p.m. 11.5 ppb (11) 2.6 ppb (2) N/A 9.0 ppb (8) N/A N/A N/A N/A N/A 15.0 μg/m3 (56) 56.0
 
July 22, 2020, 5 p.m. 11.8 ppb (11) 1.6 ppb (1) N/A 10.0 ppb (9) N/A N/A N/A N/A N/A 15.0 μg/m3 (56) 56.0
 
July 22, 2020, 4 p.m. 11.5 ppb (11) 1.8 ppb (2) N/A 10.0 ppb (9) N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
July 22, 2020, 3 p.m. 13.7 ppb (13) 2.6 ppb (2) N/A 11.0 ppb (10) N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
July 22, 2020, 2 p.m. 15.0 ppb (14) 3.7 ppb (3) N/A 11.0 ppb (10) N/A N/A N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
July 22, 2020, 1 p.m. 20.5 ppb (19) 6.2 ppb (6) N/A 14.0 ppb (13) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
July 22, 2020, noon 19.7 ppb (18) 6.3 ppb (6) N/A 13.0 ppb (12) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
July 22, 2020, 11 a.m. 19.3 ppb (18) 5.4 ppb (5) N/A 14.0 ppb (13) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
July 22, 2020, 10 a.m. 13.7 ppb (13) 1.6 ppb (1) N/A 12.0 ppb (11) N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
July 22, 2020, 9 a.m. 7.6 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
July 22, 2020, 8 a.m. 11.6 ppb (11) 0.6 ppb (1) N/A 11.0 ppb (10) N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
July 22, 2020, 7 a.m. 10.9 ppb (10) 0.4 ppb (0) N/A 11.0 ppb (10) N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
July 22, 2020, 6 a.m. 10.6 ppb (10) 0.5 ppb (0) N/A 10.0 ppb (9) N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
July 22, 2020, 5 a.m. 9.7 ppb (9) 0.4 ppb (0) N/A 9.0 ppb (8) N/A N/A N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
July 22, 2020, 4 a.m. 10.0 ppb (9) 0.5 ppb (0) N/A 9.0 ppb (8) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
July 22, 2020, 3 a.m. 9.8 ppb (9) 0.7 ppb (1) N/A 9.0 ppb (8) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
July 22, 2020, 2 a.m. 12.8 ppb (12) 1.1 ppb (1) N/A 12.0 ppb (11) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
July 22, 2020, 1 a.m. 4.7 ppb (4) 0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
July 22, 2020, midnight 6.4 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
July 21, 2020, 11 p.m. 7.1 ppb (7) 0.9 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
 
July 21, 2020, 10 p.m. 6.5 ppb (6) 0.8 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
 
July 21, 2020, 9 p.m. 7.7 ppb (7) 1.6 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
 
July 21, 2020, 8 p.m. 8.3 ppb (8) 1.9 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
July 21, 2020, 7 p.m. 6.9 ppb (6) 2.3 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
July 21, 2020, 6 p.m. 7.6 ppb (7) 1.3 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
July 21, 2020, 5 p.m. 8.9 ppb (8) 1.6 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
July 21, 2020, 4 p.m. 10.0 ppb (9) 1.6 ppb (1) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
July 21, 2020, 3 p.m. 8.7 ppb (8) 1.6 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
July 21, 2020, 2 p.m. 11.4 ppb (11) 2.5 ppb (2) N/A 9.0 ppb (8) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
July 21, 2020, 1 p.m. 16.5 ppb (15) 5.5 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
 
July 21, 2020, noon 16.5 ppb (15) 5.2 ppb (5) N/A 11.0 ppb (10) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
July 21, 2020, 11 a.m. 15.5 ppb (14) 3.6 ppb (3) N/A 12.0 ppb (11) N/A N/A N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
July 21, 2020, 10 a.m. 22.2 ppb (21) 3.6 ppb (3) N/A 19.0 ppb (18) N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
July 21, 2020, 9 a.m. 11.8 ppb (11) 0.8 ppb (1) N/A 11.0 ppb (10) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
July 21, 2020, 8 a.m. 6.7 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
July 21, 2020, 7 a.m. 7.9 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
July 21, 2020, 6 a.m. 8.5 ppb (8) 0.7 ppb (1) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A N/A 8.0
 
July 21, 2020, 5 a.m. 8.0 ppb (7) 0.5 ppb (0) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
July 21, 2020, 4 a.m. 9.8 ppb (9) 0.4 ppb (0) N/A 9.0 ppb (8) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
July 21, 2020, 3 a.m. 6.6 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
July 21, 2020, 2 a.m. 6.9 ppb (6) 0.3 ppb (0) N/A 7.0 ppb (6) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
July 21, 2020, 1 a.m. 7.0 ppb (6) 0.3 ppb (0) N/A 7.0 ppb (6) N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
July 21, 2020, midnight 11.0 ppb (10) 1.0 ppb (1) N/A 10.0 ppb (9) N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
July 20, 2020, 11 p.m. 6.5 ppb (6) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
July 20, 2020, 10 p.m. 4.8 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 13.0 μg/m3 (52) 52.0
 
July 20, 2020, 9 p.m. 4.5 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 14.0 μg/m3 (54) 54.0
 
July 20, 2020, 8 p.m. 4.1 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
July 20, 2020, 7 p.m. 5.1 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
July 20, 2020, 6 p.m. 5.3 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 (33) 33.0
 
July 20, 2020, 5 p.m. 5.4 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 (33) 33.0
 
July 20, 2020, 4 p.m. 5.3 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
July 20, 2020, 3 p.m. 5.6 ppb (5) 1.1 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
July 20, 2020, 2 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
 
July 20, 2020, 1 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
 
July 20, 2020, noon 11.2 ppb (10) 1.9 ppb (2) N/A 9.0 ppb (8) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
July 20, 2020, 11 a.m. 10.8 ppb (10) 1.6 ppb (1) N/A 9.0 ppb (8) N/A N/A N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
July 20, 2020, 10 a.m. 5.6 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
July 20, 2020, 9 a.m. 5.2 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
July 20, 2020, 8 a.m. 10.0 ppb (9) 0.4 ppb (0) N/A 10.0 ppb (9) N/A N/A N/A N/A N/A 16.0 μg/m3 (59) 59.0
 
July 20, 2020, 7 a.m. 15.0 ppb (14) 1.0 ppb (1) N/A 14.0 ppb (13) N/A N/A N/A N/A N/A 18.0 μg/m3 (63) 63.0
 
July 20, 2020, 6 a.m. 10.2 ppb (9) 0.5 ppb (0) N/A 10.0 ppb (9) N/A N/A N/A N/A N/A 13.0 μg/m3 (52) 52.0
 
July 20, 2020, 5 a.m. 12.1 ppb (11) 0.8 ppb (1) N/A 11.0 ppb (10) N/A N/A N/A N/A N/A 14.0 μg/m3 (54) 54.0
 
July 20, 2020, 4 a.m. 12.0 ppb (11) 1.5 ppb (1) N/A 11.0 ppb (10) N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
July 20, 2020, 3 a.m. 8.0 ppb (7) 1.3 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
July 20, 2020, 2 a.m. 7.1 ppb (7) 1.4 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
July 20, 2020, 1 a.m. 6.9 ppb (6) 1.1 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 20.0 μg/m3 (67) 67.0
 
July 20, 2020, midnight 8.2 ppb (8) 1.7 ppb (2) N/A 7.0 ppb (6) N/A N/A N/A N/A N/A 19.0 μg/m3 (65) 65.0
 
July 19, 2020, 11 p.m. 6.2 ppb (6) 1.1 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 13.0 μg/m3 (52) 52.0
 
July 19, 2020, 10 p.m. 6.6 ppb (6) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 15.0 μg/m3 (56) 56.0
 
July 19, 2020, 9 p.m. 6.0 ppb (6) 1.1 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 14.0 μg/m3 (54) 54.0
 
July 19, 2020, 8 p.m. 4.4 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 14.0 μg/m3 (54) 54.0
 
July 19, 2020, 7 p.m. 5.6 ppb (5) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
July 19, 2020, 6 p.m. 5.4 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 13.0 μg/m3 (52) 52.0
 
July 19, 2020, 5 p.m. 5.6 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 15.0 μg/m3 (56) 56.0
 
July 19, 2020, 4 p.m. 7.6 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A N/A N/A 19.0 μg/m3 (65) 65.0
 
July 19, 2020, 3 p.m. 7.0 ppb (6) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 16.0 μg/m3 (59) 59.0
 
July 19, 2020, 2 p.m. 9.5 ppb (9) 1.5 ppb (1) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A 14.0 μg/m3 (54) 54.0
 
July 19, 2020, 1 p.m. 12.4 ppb (11) 2.2 ppb (2) N/A 10.0 ppb (9) N/A N/A N/A N/A N/A 14.0 μg/m3 (54) 54.0
 
July 19, 2020, noon 9.4 ppb (9) 1.3 ppb (1) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
July 19, 2020, 11 a.m. 16.3 ppb (15) 2.3 ppb (2) N/A 14.0 ppb (13) N/A N/A N/A N/A N/A 14.0 μg/m3 (54) 54.0
 
July 19, 2020, 10 a.m. 14.9 ppb (14) 1.4 ppb (1) N/A 14.0 ppb (13) N/A N/A N/A N/A N/A 13.0 μg/m3 (52) 52.0
 
July 19, 2020, 9 a.m. 18.3 ppb (17) 0.7 ppb (1) N/A 18.0 ppb (17) N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
July 19, 2020, 8 a.m. 13.1 ppb (12) 0.4 ppb (0) N/A 13.0 ppb (12) N/A N/A N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
July 19, 2020, 7 a.m. 15.7 ppb (15) 0.9 ppb (1) N/A 15.0 ppb (14) N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
July 19, 2020, 6 a.m. 17.8 ppb (16) 1.1 ppb (1) N/A 17.0 ppb (16) N/A N/A N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
July 19, 2020, 5 a.m. 12.0 ppb (11) 0.2 ppb (0) N/A 12.0 ppb (11) N/A N/A N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
July 19, 2020, 4 a.m. 16.8 ppb (16) 1.2 ppb (1) N/A 16.0 ppb (15) N/A N/A N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
July 19, 2020, 3 a.m. 17.3 ppb (16) 1.3 ppb (1) N/A 16.0 ppb (15) N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
July 19, 2020, 2 a.m. 16.9 ppb (16) 1.3 ppb (1) N/A 16.0 ppb (15) N/A N/A N/A N/A N/A 14.0 μg/m3 (54) 54.0
 
July 19, 2020, 1 a.m. 17.5 ppb (16) 1.4 ppb (1) N/A 16.0 ppb (15) N/A N/A N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
July 19, 2020, midnight 16.3 ppb (15) 1.1 ppb (1) N/A 15.0 ppb (14) N/A N/A N/A N/A N/A 13.0 μg/m3 (52) 52.0
 
July 18, 2020, 11 p.m. 11.3 ppb (10) 1.0 ppb (1) N/A 10.0 ppb (9) N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
July 18, 2020, 10 p.m. 6.9 ppb (6) 1.0 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
 
July 18, 2020, 9 p.m. 7.9 ppb (7) 1.1 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
July 18, 2020, 8 p.m. 8.1 ppb (8) 1.2 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
July 18, 2020, 7 p.m. 7.3 ppb (7) 1.1 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
July 18, 2020, 6 p.m. 7.0 ppb (6) 1.3 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
July 18, 2020, 5 p.m. 7.6 ppb (7) 1.3 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
July 18, 2020, 4 p.m. 5.5 ppb (5) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
July 18, 2020, 3 p.m. 6.0 ppb (6) 1.9 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
July 18, 2020, 2 p.m. 6.2 ppb (6) 1.0 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
 
July 18, 2020, 1 p.m. 8.3 ppb (8) 2.0 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
July 18, 2020, noon 8.6 ppb (8) 2.5 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
July 18, 2020, 11 a.m. 9.9 ppb (9) 1.7 ppb (2) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
July 18, 2020, 10 a.m. 13.1 ppb (12) 1.0 ppb (1) N/A 12.0 ppb (11) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
July 18, 2020, 9 a.m. 12.0 ppb (11) 0.7 ppb (1) N/A 11.0 ppb (10) N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
July 18, 2020, 8 a.m. 10.0 ppb (9) 0.4 ppb (0) N/A 10.0 ppb (9) N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
July 18, 2020, 7 a.m. 10.3 ppb (10) 0.5 ppb (0) N/A 10.0 ppb (9) N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
July 18, 2020, 6 a.m. 10.3 ppb (10) 0.3 ppb (0) N/A 10.0 ppb (9) N/A N/A N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
July 18, 2020, 5 a.m. 14.4 ppb (13) 0.8 ppb (1) N/A 14.0 ppb (13) N/A N/A N/A N/A N/A 22.0 μg/m3 (71) 71.0
 
July 18, 2020, 4 a.m. 11.6 ppb (11) 0.5 ppb (0) N/A 11.0 ppb (10) N/A N/A N/A N/A N/A 15.0 μg/m3 (56) 56.0