ID: 1413

AQSQID: 380130004

Site Name: Lostwood Nwr

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

Updated: Feb. 25, 2021, 6:32 p.m.

Location: Kenmare (N Dakota Hwy 8), ND

Reporting: True, Located: True

Current AQI: 31.0

Kenmare (N Dakota Hwy 8) ND, US: 48.641899, -102.402199

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Feb. 25, 2021, 4 p.m. 3.3 ppb (4) 1.1 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 33.0 ppb (31) N/A N/A 3.7 μg/m3 (16) 31.0
 
Feb. 25, 2021, 3 p.m. 3.0 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 4.3 μg/m3 (18) 30.0
 
Feb. 25, 2021, 2 p.m. 2.3 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 4.5 μg/m3 (19) 30.0
 
Feb. 25, 2021, 1 p.m. 2.3 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 5.2 μg/m3 (22) 29.0
 
Feb. 25, 2021, noon 2.9 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 6.0 μg/m3 (25) 28.0
 
Feb. 25, 2021, 11 a.m. 2.7 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 29.0 ppb (27) N/A N/A 6.3 μg/m3 (27) 27.0
 
Feb. 25, 2021, 10 a.m. 2.5 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 5.5 μg/m3 (23) 28.0
 
Feb. 25, 2021, 9 a.m. 1.6 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 4.4 μg/m3 (19) 29.0
 
Feb. 25, 2021, 8 a.m. 1.5 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 3.9 μg/m3 (17) 30.0
 
Feb. 25, 2021, 7 a.m. 1.9 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 33.0 ppb (31) N/A N/A 3.8 μg/m3 (16) 31.0
 
Feb. 25, 2021, 6 a.m. 1.6 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 4.1 μg/m3 (18) 32.0
 
Feb. 25, 2021, 5 a.m. 1.5 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 36.0 ppb (34) N/A N/A 4.9 μg/m3 (21) 34.0
 
Feb. 25, 2021, 4 a.m. 1.4 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 37.0 ppb (35) N/A N/A 4.8 μg/m3 (20) 35.0
 
Feb. 25, 2021, 3 a.m. 1.4 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 37.0 ppb (35) N/A N/A 4.3 μg/m3 (18) 35.0
 
Feb. 25, 2021, 2 a.m. 1.1 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 38.0 ppb (36) N/A N/A 4.0 μg/m3 (17) 36.0
 
Feb. 25, 2021, 1 a.m. 1.1 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 39.0 ppb (37) N/A N/A 4.2 μg/m3 (18) 37.0
 
Feb. 25, 2021, midnight 1.1 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 38.0 ppb (36) N/A N/A 4.8 μg/m3 (20) 36.0
 
Feb. 24, 2021, 11 p.m. 1.2 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (37) N/A N/A 5.6 μg/m3 (24) 37.0
 
Feb. 24, 2021, 10 p.m. 1.9 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 38.0 ppb (36) N/A N/A 8.6 μg/m3 (36) 36.0
 
Feb. 24, 2021, 9 p.m. 1.9 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 38.0 ppb (36) N/A N/A 6.8 μg/m3 (29) 36.0
 
Feb. 24, 2021, 8 p.m. 2.9 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 38.0 ppb (36) N/A N/A 7.1 μg/m3 (30) 36.0
 
Feb. 24, 2021, 7 p.m. 5.7 ppb (6) 2.1 ppb (2) N/A 4.0 ppb (4) N/A 4.0 ppb (6) 37.0 ppb (35) N/A N/A 8.8 μg/m3 (37) 37.0
 
Feb. 24, 2021, 6 p.m. 4.3 ppb (5) 1.3 ppb (2) N/A 3.0 ppb (3) N/A 3.0 ppb (5) 38.0 ppb (36) N/A N/A 9.6 μg/m3 (40) 40.0
 
Feb. 24, 2021, 5 p.m. 4.9 ppb (5) 1.5 ppb (2) N/A 3.0 ppb (3) N/A 3.0 ppb (5) 37.0 ppb (35) N/A N/A 8.3 μg/m3 (35) 35.0
 
Feb. 24, 2021, 4 p.m. 2.6 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 39.0 ppb (37) N/A N/A 7.2 μg/m3 (31) 37.0
 
Feb. 24, 2021, 3 p.m. 2.6 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 38.0 ppb (36) N/A N/A 6.5 μg/m3 (28) 36.0
 
Feb. 24, 2021, 2 p.m. 2.6 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 38.0 ppb (36) N/A N/A 6.5 μg/m3 (28) 36.0
 
Feb. 24, 2021, 1 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 39.0 ppb (37) N/A N/A 6.7 μg/m3 (28) 37.0
 
Feb. 24, 2021, noon 1.8 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 42.0 ppb (39) N/A N/A 6.2 μg/m3 (26) 39.0
 
Feb. 24, 2021, 11 a.m. 1.9 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 45.0 ppb (42) N/A N/A 6.5 μg/m3 (28) 42.0
 
Feb. 24, 2021, 10 a.m. 2.2 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 44.0 ppb (41) N/A N/A 10.9 μg/m3 (46) 46.0
 
Feb. 24, 2021, 9 a.m. 2.6 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 42.0 ppb (39) N/A N/A 11.8 μg/m3 (50) 50.0
 
Feb. 24, 2021, 8 a.m. 2.8 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 40.0 ppb (38) N/A N/A 11.9 μg/m3 (50) 50.0
 
Feb. 24, 2021, 7 a.m. 3.9 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 3.0 ppb (5) 39.0 ppb (37) N/A N/A 12.7 μg/m3 (53) 53.0
 
Feb. 24, 2021, 6 a.m. 4.1 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 3.0 ppb (5) 38.0 ppb (36) N/A N/A 12.3 μg/m3 (52) 52.0
 
Feb. 24, 2021, 5 a.m. 3.4 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 39.0 ppb (37) N/A N/A 9.8 μg/m3 (41) 41.0
 
Feb. 24, 2021, 4 a.m. 3.3 ppb (4) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 39.0 ppb (37) N/A N/A 8.4 μg/m3 (36) 37.0
 
Feb. 24, 2021, 3 a.m. 3.6 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 38.0 ppb (36) N/A N/A 8.3 μg/m3 (35) 36.0
 
Feb. 24, 2021, 2 a.m. 8.4 ppb (8) 0.1 ppb (1) N/A 8.0 ppb (8) N/A 8.0 ppb (12) 33.0 ppb (31) N/A N/A 10.8 μg/m3 (46) 46.0
 
Feb. 24, 2021, 1 a.m. 11.5 ppb (11) 0.1 ppb (1) N/A 11.0 ppb (11) N/A 11.0 ppb (16) 29.0 ppb (27) N/A N/A 10.1 μg/m3 (43) 43.0
 
Feb. 24, 2021, midnight 5.3 ppb (5) 0.1 ppb (1) N/A 5.0 ppb (5) N/A 4.0 ppb (6) 37.0 ppb (35) N/A N/A 7.4 μg/m3 (31) 35.0
 
Feb. 23, 2021, 11 p.m. 2.2 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 41.0 ppb (38) N/A N/A 5.2 μg/m3 (22) 38.0
 
Feb. 23, 2021, 10 p.m. 1.9 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 42.0 ppb (39) N/A N/A 3.8 μg/m3 (16) 39.0
 
Feb. 23, 2021, 9 p.m. 1.9 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 42.0 ppb (39) N/A N/A 4.6 μg/m3 (20) 39.0
 
Feb. 23, 2021, 8 p.m. 1.8 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 40.0 ppb (38) N/A N/A 5.4 μg/m3 (23) 38.0
 
Feb. 23, 2021, 7 p.m. 2.0 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 37.0 ppb (35) N/A N/A 6.0 μg/m3 (25) 35.0
 
Feb. 23, 2021, 6 p.m. 1.6 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 43.0 ppb (40) N/A N/A 2.7 μg/m3 (12) 40.0
 
Feb. 23, 2021, 5 p.m. 1.6 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 40.0 ppb (38) N/A N/A 1.3 μg/m3 (6) 38.0
 
Feb. 23, 2021, 4 p.m. 1.3 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 40.0 ppb (38) N/A N/A 0.2 μg/m3 (1) 38.0
 
Feb. 23, 2021, 3 p.m. 1.6 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 0.3 μg/m3 (2) 32.0
 
Feb. 23, 2021, 2 p.m. 1.2 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 37.0 ppb (35) N/A N/A 0.9 μg/m3 (4) 35.0
 
Feb. 23, 2021, 1 p.m. 1.1 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 36.0 ppb (34) N/A N/A 0.8 μg/m3 (4) 34.0
 
Feb. 23, 2021, noon 1.1 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 38.0 ppb (36) N/A N/A 0.8 μg/m3 (4) 36.0
 
Feb. 23, 2021, 11 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 42.0 ppb (39) N/A N/A 1.3 μg/m3 (6) 39.0
 
Feb. 23, 2021, 10 a.m. 0.9 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 43.0 ppb (40) N/A N/A 1.7 μg/m3 (8) 40.0
 
Feb. 23, 2021, 9 a.m. 0.9 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 43.0 ppb (40) N/A N/A 0.7 μg/m3 (3) 40.0
 
Feb. 23, 2021, 8 a.m. 1.2 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 38.0 ppb (36) N/A N/A 1.0 μg/m3 (5) 36.0
 
Feb. 23, 2021, 7 a.m. 1.2 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 1.0 μg/m3 (5) 32.0
 
Feb. 23, 2021, 6 a.m. 1.1 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 36.0 ppb (34) N/A N/A 0.9 μg/m3 (4) 34.0
 
Feb. 23, 2021, 5 a.m. 1.1 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 37.0 ppb (35) N/A N/A 1.1 μg/m3 (5) 35.0
 
Feb. 23, 2021, 4 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 42.0 ppb (39) N/A N/A 0.8 μg/m3 (4) 39.0
 
Feb. 23, 2021, 3 a.m. 0.9 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 42.0 ppb (39) N/A N/A 0.8 μg/m3 (4) 39.0
 
Feb. 23, 2021, 2 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 42.0 ppb (39) N/A N/A 0.7 μg/m3 (3) 39.0
 
Feb. 23, 2021, 1 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 42.0 ppb (39) N/A N/A 0.8 μg/m3 (4) 39.0
 
Feb. 23, 2021, midnight 1.1 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 42.0 ppb (39) N/A N/A 0.8 μg/m3 (4) 39.0
 
Feb. 22, 2021, 11 p.m. 1.1 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 43.0 ppb (40) N/A N/A 0.8 μg/m3 (4) 40.0
 
Feb. 22, 2021, 10 p.m. 1.3 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 43.0 ppb (40) N/A N/A 0.8 μg/m3 (4) 40.0
 
Feb. 22, 2021, 9 p.m. 1.4 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 42.0 ppb (39) N/A N/A 1.1 μg/m3 (5) 39.0
 
Feb. 22, 2021, 8 p.m. 1.4 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 42.0 ppb (39) N/A N/A 1.2 μg/m3 (5) 39.0
 
Feb. 22, 2021, 7 p.m. 1.4 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 42.0 ppb (39) N/A N/A 1.0 μg/m3 (5) 39.0
 
Feb. 22, 2021, 6 p.m. 1.5 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 36.0 ppb (34) N/A N/A 0.9 μg/m3 (4) 34.0
 
Feb. 22, 2021, 5 p.m. 1.4 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 0.9 μg/m3 (4) 33.0
 
Feb. 22, 2021, 4 p.m. 1.4 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 1.8 μg/m3 (8) 32.0
 
Feb. 22, 2021, 3 p.m. 1.2 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 2.3 μg/m3 (10) 32.0
 
Feb. 22, 2021, 2 p.m. 1.1 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 1.3 μg/m3 (6) 32.0
 
Feb. 22, 2021, 1 p.m. 1.1 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 1.0 μg/m3 (5) 33.0
 
Feb. 22, 2021, noon 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 1.3 μg/m3 (6) 33.0
 
Feb. 22, 2021, 11 a.m. 0.9 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 1.5 μg/m3 (7) 32.0
 
Feb. 22, 2021, 10 a.m. 0.9 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 1.1 μg/m3 (5) 32.0
 
Feb. 22, 2021, 9 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 1.0 μg/m3 (5) 32.0
 
Feb. 22, 2021, 8 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 33.0 ppb (31) N/A N/A 0.9 μg/m3 (4) 31.0
 
Feb. 22, 2021, 7 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 1.3 μg/m3 (6) 32.0
 
Feb. 22, 2021, 6 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 1.2 μg/m3 (5) 32.0
 
Feb. 22, 2021, 5 a.m. 1.1 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 1.0 μg/m3 (5) 32.0
 
Feb. 22, 2021, 4 a.m. 1.1 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 1.0 μg/m3 (5) 33.0
 
Feb. 22, 2021, 3 a.m. 1.9 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 1.6 μg/m3 (7) 32.0
 
Feb. 22, 2021, 2 a.m. 2.2 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 1.8 μg/m3 (8) 33.0
 
Feb. 22, 2021, 1 a.m. 1.3 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 36.0 ppb (34) N/A N/A 1.6 μg/m3 (7) 34.0
 
Feb. 22, 2021, midnight 1.1 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 37.0 ppb (35) N/A N/A 1.6 μg/m3 (7) 35.0
 
Feb. 21, 2021, 11 p.m. 1.3 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 36.0 ppb (34) N/A N/A 1.6 μg/m3 (7) 34.0
 
Feb. 21, 2021, 10 p.m. 1.3 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 37.0 ppb (35) N/A N/A 1.7 μg/m3 (8) 35.0
 
Feb. 21, 2021, 9 p.m. 1.3 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 38.0 ppb (36) N/A N/A 1.8 μg/m3 (8) 36.0
 
Feb. 21, 2021, 8 p.m. 1.4 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 38.0 ppb (36) N/A N/A 1.9 μg/m3 (8) 36.0
 
Feb. 21, 2021, 7 p.m. 1.5 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 38.0 ppb (36) N/A N/A 1.7 μg/m3 (8) 36.0
 
Feb. 21, 2021, 6 p.m. 1.7 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 36.0 ppb (34) N/A N/A 1.5 μg/m3 (7) 34.0
 
Feb. 21, 2021, 5 p.m. 1.8 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 1.6 μg/m3 (7) 32.0
 
Feb. 21, 2021, 4 p.m. 1.8 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 1.3 μg/m3 (6) 32.0
 
Feb. 21, 2021, 3 p.m. 1.9 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 0.9 μg/m3 (4) 30.0
 
Feb. 21, 2021, 2 p.m. 1.9 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 31.0 ppb (29) N/A N/A 0.9 μg/m3 (4) 29.0
 
Feb. 21, 2021, 1 p.m. 1.7 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 31.0 ppb (29) N/A N/A 1.0 μg/m3 (5) 29.0
 
Feb. 21, 2021, noon 1.9 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 31.0 ppb (29) N/A N/A 1.0 μg/m3 (5) 29.0
 
Feb. 21, 2021, 11 a.m. 1.9 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 1.1 μg/m3 (5) 30.0
 
Feb. 21, 2021, 10 a.m. 2.2 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 1.1 μg/m3 (5) 30.0
 
Feb. 21, 2021, 9 a.m. 2.2 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 1.2 μg/m3 (5) 32.0
 
Feb. 21, 2021, 8 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 33.0 ppb (31) N/A N/A 1.5 μg/m3 (7) 31.0
 
Feb. 21, 2021, 7 a.m. 2.5 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 1.2 μg/m3 (5) 32.0
 
Feb. 21, 2021, 6 a.m. 1.5 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 1.4 μg/m3 (6) 33.0
 
Feb. 21, 2021, 5 a.m. 1.6 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 2.0 μg/m3 (9) 33.0
 
Feb. 21, 2021, 4 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 2.1 μg/m3 (9) 32.0
 
Feb. 21, 2021, 3 a.m. 2.4 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 3.1 μg/m3 (13) 32.0
 
Feb. 21, 2021, 2 a.m. 2.9 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 3.7 μg/m3 (16) 32.0
 
Feb. 21, 2021, 1 a.m. 2.6 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 3.6 μg/m3 (16) 32.0
 
Feb. 21, 2021, midnight 2.9 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 4.7 μg/m3 (20) 33.0
 
Feb. 20, 2021, 11 p.m. 3.7 ppb (4) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 37.0 ppb (35) N/A N/A 4.5 μg/m3 (19) 35.0
 
Feb. 20, 2021, 10 p.m. 4.7 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 39.0 ppb (37) N/A N/A 4.5 μg/m3 (19) 37.0
 
Feb. 20, 2021, 9 p.m. 4.8 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 42.0 ppb (39) N/A N/A 5.8 μg/m3 (25) 39.0
 
Feb. 20, 2021, 8 p.m. 3.7 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 43.0 ppb (40) N/A N/A 4.5 μg/m3 (19) 40.0
 
Feb. 20, 2021, 7 p.m. 3.9 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 43.0 ppb (40) N/A N/A 4.9 μg/m3 (21) 40.0
 
Feb. 20, 2021, 6 p.m. 3.0 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 40.0 ppb (38) N/A N/A 3.9 μg/m3 (17) 38.0
 
Feb. 20, 2021, 5 p.m. 3.0 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 36.0 ppb (34) N/A N/A 3.4 μg/m3 (15) 34.0
 
Feb. 20, 2021, 4 p.m. 2.8 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 3.2 μg/m3 (14) 32.0
 
Feb. 20, 2021, 3 p.m. 2.6 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 33.0 ppb (31) N/A N/A 3.3 μg/m3 (14) 31.0
 
Feb. 20, 2021, 2 p.m. 2.3 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 3.1 μg/m3 (13) 30.0
 
Feb. 20, 2021, 1 p.m. 1.9 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 33.0 ppb (31) N/A N/A 2.8 μg/m3 (12) 31.0
 
Feb. 20, 2021, noon 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 2.8 μg/m3 (12) 30.0
 
Feb. 20, 2021, 11 a.m. 2.3 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 3.7 μg/m3 (16) 30.0
 
Feb. 20, 2021, 10 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 4.2 μg/m3 (18) 30.0
 
Feb. 20, 2021, 9 a.m. 3.2 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 3.9 μg/m3 (17) 30.0
 
Feb. 20, 2021, 8 a.m. 3.7 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 3.9 μg/m3 (17) 30.0
 
Feb. 20, 2021, 7 a.m. 4.2 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 33.0 ppb (31) N/A N/A 3.9 μg/m3 (17) 31.0
 
Feb. 20, 2021, 6 a.m. 3.8 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 3.9 μg/m3 (17) 32.0
 
Feb. 20, 2021, 5 a.m. 3.4 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 4.1 μg/m3 (18) 33.0
 
Feb. 20, 2021, 4 a.m. 3.3 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 36.0 ppb (34) N/A N/A 4.5 μg/m3 (19) 34.0
 
Feb. 20, 2021, 3 a.m. 3.3 ppb (4) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 36.0 ppb (34) N/A N/A 4.6 μg/m3 (20) 34.0
 
Feb. 20, 2021, 2 a.m. 2.2 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 38.0 ppb (36) N/A N/A 4.2 μg/m3 (18) 36.0
 
Feb. 20, 2021, 1 a.m. 2.8 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 38.0 ppb (36) N/A N/A 5.6 μg/m3 (24) 36.0
 
Feb. 20, 2021, midnight 4.1 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 38.0 ppb (36) N/A N/A 8.2 μg/m3 (35) 36.0
 
Feb. 19, 2021, 11 p.m. 2.8 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 41.0 ppb (38) N/A N/A 6.6 μg/m3 (28) 38.0
 
Feb. 19, 2021, 10 p.m. 2.4 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 43.0 ppb (40) N/A N/A 6.0 μg/m3 (25) 40.0
 
Feb. 19, 2021, 9 p.m. 3.0 ppb (3) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 44.0 ppb (41) N/A N/A 6.5 μg/m3 (28) 41.0
 
Feb. 19, 2021, 8 p.m. 4.0 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 44.0 ppb (41) N/A N/A 7.4 μg/m3 (31) 41.0
 
Feb. 19, 2021, 7 p.m. 7.0 ppb (7) 2.1 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 41.0 ppb (38) N/A N/A 8.0 μg/m3 (34) 38.0
 
Feb. 19, 2021, 6 p.m. 8.5 ppb (9) 2.9 ppb (3) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 40.0 ppb (38) N/A N/A 7.5 μg/m3 (32) 38.0
 
Feb. 19, 2021, 5 p.m. 9.3 ppb (9) 3.3 ppb (4) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 37.0 ppb (35) N/A N/A 8.9 μg/m3 (38) 38.0
 
Feb. 19, 2021, 4 p.m. 9.0 ppb (9) 3.0 ppb (3) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 10.4 μg/m3 (44) 44.0
 
Feb. 19, 2021, 3 p.m. 5.8 ppb (6) 1.3 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 10.5 μg/m3 (44) 44.0
 
Feb. 19, 2021, 2 p.m. 4.4 ppb (5) 0.4 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 10.5 μg/m3 (44) 44.0
 
Feb. 19, 2021, 1 p.m. 4.2 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 33.0 ppb (31) N/A N/A 11.2 μg/m3 (47) 47.0
 
Feb. 19, 2021, noon 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 31.0 ppb (29) N/A N/A 10.4 μg/m3 (44) 44.0
 
Feb. 19, 2021, 11 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 31.0 ppb (29) N/A N/A 10.0 μg/m3 (42) 42.0
 
Feb. 19, 2021, 10 a.m. 3.4 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 33.0 ppb (31) N/A N/A 9.3 μg/m3 (39) 39.0
 
Feb. 19, 2021, 9 a.m. 2.5 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 31.0 ppb (29) N/A N/A 9.5 μg/m3 (40) 40.0
 
Feb. 19, 2021, 8 a.m. 2.5 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 9.5 μg/m3 (40) 40.0
 
Feb. 19, 2021, 7 a.m. 2.4 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 9.7 μg/m3 (41) 41.0
 
Feb. 19, 2021, 6 a.m. 2.4 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 33.0 ppb (31) N/A N/A 9.8 μg/m3 (41) 41.0
 
Feb. 19, 2021, 5 a.m. 2.4 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 33.0 ppb (31) N/A N/A 11.1 μg/m3 (47) 47.0
 
Feb. 19, 2021, 4 a.m. 2.4 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 36.0 ppb (34) N/A N/A 9.7 μg/m3 (41) 41.0
 
Feb. 19, 2021, 3 a.m. 2.8 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 9.5 μg/m3 (40) 40.0
 
Feb. 19, 2021, 2 a.m. 3.6 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 10.0 μg/m3 (42) 42.0
 
Feb. 19, 2021, 1 a.m. 3.3 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 36.0 ppb (34) N/A N/A 9.7 μg/m3 (41) 41.0
 
Feb. 19, 2021, midnight 2.8 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 39.0 ppb (37) N/A N/A 9.8 μg/m3 (41) 41.0
 
Feb. 18, 2021, 11 p.m. 3.0 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 40.0 ppb (38) N/A N/A 9.5 μg/m3 (40) 40.0
 
Feb. 18, 2021, 10 p.m. 3.1 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 40.0 ppb (38) N/A N/A 9.5 μg/m3 (40) 40.0
 
Feb. 18, 2021, 9 p.m. 3.3 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 40.0 ppb (38) N/A N/A 10.7 μg/m3 (45) 45.0
 
Feb. 18, 2021, 8 p.m. 3.6 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 39.0 ppb (37) N/A N/A 11.3 μg/m3 (48) 48.0
 
Feb. 18, 2021, 7 p.m. 3.6 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 37.0 ppb (35) N/A N/A 11.6 μg/m3 (49) 49.0
 
Feb. 18, 2021, 6 p.m. 3.5 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 35.0 ppb (33) N/A N/A 11.8 μg/m3 (50) 50.0
 
Feb. 18, 2021, 5 p.m. 3.8 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 32.0 ppb (30) N/A N/A 12.1 μg/m3 (51) 51.0