ID: 2008

AQSQID: 081030006

Site Name: Rangely, Co

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

Updated: March 6, 2021, 4:32 a.m.

Location: Rangely (Co Rd 132), CO

Reporting: True, Located: True

Current AQI: 33.0

Rangely (Co Rd 132) CO, US: 40.086941, -108.761002

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Feb. 27, 2021, 1 a.m. 0.8 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) N/A N/A 6.0 μg/m3 (25) 39.0
 
Feb. 27, 2021, midnight 0.6 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (41) N/A N/A 8.0 μg/m3 (34) 41.0
 
Feb. 26, 2021, 11 p.m. 0.3 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 45.0 ppb (42) N/A N/A 6.0 μg/m3 (25) 42.0
 
Feb. 26, 2021, 10 p.m. 0.1 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 46.0 ppb (43) N/A N/A 9.0 μg/m3 (38) 43.0
 
Feb. 26, 2021, 9 p.m. 0.1 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 46.0 ppb (43) N/A N/A 8.0 μg/m3 (34) 43.0
 
Feb. 26, 2021, 8 p.m. 0.2 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 46.0 ppb (43) N/A N/A 7.0 μg/m3 (30) 43.0
 
Feb. 26, 2021, 7 p.m. 0.2 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 45.0 ppb (42) N/A N/A 6.0 μg/m3 (25) 42.0
 
Feb. 26, 2021, 6 p.m. 0.4 ppb (1) 0.1 ppb (1) N/A 0.0 ppb (0) N/A N/A 44.0 ppb (41) N/A N/A 5.0 μg/m3 (21) 41.0
 
Feb. 26, 2021, 5 p.m. 1.3 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (38) N/A N/A 7.0 μg/m3 (30) 38.0
 
Feb. 26, 2021, 4 p.m. 5.3 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A N/A 33.0 ppb (31) N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 26, 2021, 3 p.m. 6.2 ppb (6) 2.2 ppb (3) N/A 4.0 ppb (4) N/A N/A 24.0 ppb (23) N/A N/A 6.0 μg/m3 (25) 25.0
 
Feb. 26, 2021, 2 p.m. 9.0 ppb (9) 1.5 ppb (2) N/A 7.0 ppb (7) N/A N/A 16.0 ppb (15) N/A N/A 6.0 μg/m3 (25) 25.0
 
Feb. 26, 2021, 1 p.m. 11.2 ppb (11) 0.3 ppb (1) N/A 11.0 ppb (11) N/A N/A 14.0 ppb (13) N/A N/A 6.0 μg/m3 (25) 25.0
 
Feb. 26, 2021, noon 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
 
Feb. 26, 2021, 11 a.m. 1.2 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 26.0 ppb (25) N/A N/A 5.0 μg/m3 (21) 25.0
 
Feb. 26, 2021, 10 a.m. 1.2 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 27.0 ppb (25) N/A N/A 5.0 μg/m3 (21) 25.0
 
Feb. 26, 2021, 9 a.m. 1.7 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 27.0 ppb (25) N/A N/A 4.0 μg/m3 (17) 25.0
 
Feb. 26, 2021, 8 a.m. 0.3 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 32.0 ppb (30) N/A N/A 4.0 μg/m3 (17) 30.0
 
Feb. 26, 2021, 7 a.m. 0.2 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 35.0 ppb (33) N/A N/A 7.0 μg/m3 (30) 33.0
 
Feb. 26, 2021, 6 a.m. 0.6 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 34.0 ppb (32) N/A N/A 10.0 μg/m3 (42) 42.0
 
Feb. 26, 2021, 5 a.m. 0.8 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 34.0 ppb (32) N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 26, 2021, 4 a.m. 0.7 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (33) N/A N/A 8.0 μg/m3 (34) 34.0
 
Feb. 26, 2021, 3 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (33) N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 26, 2021, 2 a.m. 0.5 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 39.0 ppb (37) N/A N/A 6.0 μg/m3 (25) 37.0
 
Feb. 26, 2021, 1 a.m. 0.7 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (38) N/A N/A 2.0 μg/m3 (9) 38.0
 
Feb. 26, 2021, midnight 0.1 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 43.0 ppb (40) N/A N/A 5.0 μg/m3 (21) 40.0
 
Feb. 25, 2021, 11 p.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
 
Feb. 25, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (34) 34.0
 
Feb. 25, 2021, 9 p.m. 0.1 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 45.0 ppb (42) N/A N/A 9.0 μg/m3 (38) 42.0
 
Feb. 25, 2021, 8 p.m. 0.1 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 43.0 ppb (40) N/A N/A 10.0 μg/m3 (42) 42.0
 
Feb. 25, 2021, 7 p.m. 0.1 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 44.0 ppb (41) N/A N/A 7.0 μg/m3 (30) 41.0
 
Feb. 25, 2021, 6 p.m. 0.1 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 43.0 ppb (40) N/A N/A 6.0 μg/m3 (25) 40.0
 
Feb. 25, 2021, 5 p.m. 0.2 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 43.0 ppb (40) N/A N/A 7.0 μg/m3 (30) 40.0
 
Feb. 25, 2021, 4 p.m. 0.4 ppb (1) 0.1 ppb (1) N/A 0.0 ppb (0) N/A N/A 41.0 ppb (38) N/A N/A 7.0 μg/m3 (30) 38.0
 
Feb. 25, 2021, 3 p.m. 0.5 ppb (1) 0.1 ppb (1) N/A 0.0 ppb (0) N/A N/A 38.0 ppb (36) N/A N/A 6.0 μg/m3 (25) 36.0
 
Feb. 25, 2021, 2 p.m. 2.4 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (32) N/A N/A 4.0 μg/m3 (17) 32.0
 
Feb. 25, 2021, 1 p.m. 0.2 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 40.0 ppb (38) N/A N/A 6.0 μg/m3 (25) 38.0
 
Feb. 25, 2021, noon 0.1 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 41.0 ppb (38) N/A N/A 7.0 μg/m3 (30) 38.0
 
Feb. 25, 2021, 11 a.m. 0.2 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 41.0 ppb (38) N/A N/A 7.0 μg/m3 (30) 38.0
 
Feb. 25, 2021, 10 a.m. 0.2 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 41.0 ppb (38) N/A N/A 8.0 μg/m3 (34) 38.0
 
Feb. 25, 2021, 9 a.m. 0.1 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 42.0 ppb (39) N/A N/A 8.0 μg/m3 (34) 39.0
 
Feb. 25, 2021, 8 a.m. 0.2 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 42.0 ppb (39) N/A N/A 6.0 μg/m3 (25) 39.0
 
Feb. 25, 2021, 7 a.m. 0.3 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 42.0 ppb (39) N/A N/A 6.0 μg/m3 (25) 39.0
 
Feb. 25, 2021, 6 a.m. 0.2 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 43.0 ppb (40) N/A N/A 6.0 μg/m3 (25) 40.0
 
Feb. 25, 2021, 5 a.m. 0.2 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 44.0 ppb (41) N/A N/A 6.0 μg/m3 (25) 41.0
 
Feb. 25, 2021, 4 a.m. 0.3 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 43.0 ppb (40) N/A N/A 6.0 μg/m3 (25) 40.0
 
Feb. 25, 2021, 3 a.m. 0.6 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (41) N/A N/A 8.0 μg/m3 (34) 41.0
 
Feb. 25, 2021, 2 a.m. 0.8 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (41) N/A N/A 5.0 μg/m3 (21) 41.0
 
Feb. 25, 2021, 1 a.m. 0.2 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 45.0 ppb (42) N/A N/A 1.0 μg/m3 (5) 42.0
 
Feb. 25, 2021, midnight 0.2 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 45.0 ppb (42) N/A N/A 2.0 μg/m3 (9) 42.0
 
Feb. 24, 2021, 11 p.m. 0.4 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 48.0 ppb (45) N/A N/A 2.0 μg/m3 (9) 45.0
 
Feb. 24, 2021, 10 p.m. 0.9 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (45) N/A N/A 1.0 μg/m3 (5) 45.0
 
Feb. 24, 2021, 9 p.m. 1.2 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (45) N/A N/A 4.0 μg/m3 (17) 45.0
 
Feb. 24, 2021, 8 p.m. 0.8 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (45) N/A N/A 9.0 μg/m3 (38) 45.0
 
Feb. 24, 2021, 7 p.m. 0.7 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (44) N/A N/A 8.0 μg/m3 (34) 44.0
 
Feb. 24, 2021, 6 p.m. 1.1 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (42) N/A N/A 7.0 μg/m3 (30) 42.0
 
Feb. 24, 2021, 5 p.m. 1.0 ppb (1) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) N/A N/A 10.0 μg/m3 (42) 42.0
 
Feb. 24, 2021, 4 p.m. 0.8 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (36) N/A N/A 13.0 μg/m3 (53) 53.0
 
Feb. 24, 2021, 3 p.m. 0.6 ppb (1) 0.1 ppb (1) N/A 0.0 ppb (0) N/A N/A 38.0 ppb (36) N/A N/A 7.0 μg/m3 (30) 36.0
 
Feb. 24, 2021, 2 p.m. 0.6 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (35) N/A N/A 3.0 μg/m3 (13) 35.0
 
Feb. 24, 2021, 1 p.m. 0.4 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 37.0 ppb (35) N/A N/A 3.0 μg/m3 (13) 35.0
 
Feb. 24, 2021, noon 0.3 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 36.0 ppb (34) N/A N/A 5.0 μg/m3 (21) 34.0
 
Feb. 24, 2021, 11 a.m. 0.3 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 36.0 ppb (34) N/A N/A 7.0 μg/m3 (30) 34.0
 
Feb. 24, 2021, 10 a.m. 0.4 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 36.0 ppb (34) N/A N/A 6.0 μg/m3 (25) 34.0
 
Feb. 24, 2021, 9 a.m. 0.5 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 36.0 ppb (34) N/A N/A 5.0 μg/m3 (21) 34.0
 
Feb. 24, 2021, 8 a.m. 1.6 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) N/A N/A 6.0 μg/m3 (25) 33.0
 
Feb. 24, 2021, 7 a.m. 4.5 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 30.0 ppb (28) N/A N/A 6.0 μg/m3 (25) 28.0
 
Feb. 24, 2021, 6 a.m. 5.1 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 30.0 ppb (28) N/A N/A 4.0 μg/m3 (17) 28.0
 
Feb. 24, 2021, 5 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (34) N/A N/A 5.0 μg/m3 (21) 34.0
 
Feb. 24, 2021, 4 a.m. 4.9 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 39.0 ppb (37) N/A N/A 3.0 μg/m3 (13) 37.0
 
Feb. 24, 2021, 3 a.m. 5.5 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A 37.0 ppb (35) N/A N/A -3.0 μg/m3 (0) 35.0
 
Feb. 24, 2021, 2 a.m. 1.1 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (41) N/A N/A 0.0 μg/m3 (0) 41.0
 
Feb. 24, 2021, 1 a.m. 1.1 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (38) N/A N/A 7.0 μg/m3 (30) 38.0
 
Feb. 24, 2021, midnight 1.1 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) N/A N/A 9.0 μg/m3 (38) 39.0
 
Feb. 23, 2021, 11 p.m. 1.4 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (40) N/A N/A 8.0 μg/m3 (34) 40.0
 
Feb. 23, 2021, 10 p.m. 1.7 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (40) N/A N/A 6.0 μg/m3 (25) 40.0
 
Feb. 23, 2021, 9 p.m. 1.9 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (40) N/A N/A 6.0 μg/m3 (25) 40.0
 
Feb. 23, 2021, 8 p.m. 1.1 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) N/A N/A 7.0 μg/m3 (30) 39.0
 
Feb. 23, 2021, 7 p.m. 0.9 ppb (1) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 39.0 ppb (37) N/A N/A 10.0 μg/m3 (42) 42.0
 
Feb. 23, 2021, 6 p.m. 1.2 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (35) N/A N/A 11.0 μg/m3 (46) 46.0
 
Feb. 23, 2021, 5 p.m. 1.2 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A 31.0 ppb (29) N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 23, 2021, 4 p.m. 0.9 ppb (1) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A 27.0 ppb (25) N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 23, 2021, 3 p.m. 1.6 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 22.0 ppb (21) N/A N/A 7.0 μg/m3 (30) 30.0
 
Feb. 23, 2021, 2 p.m. 2.6 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 21.0 ppb (20) N/A N/A 7.0 μg/m3 (30) 30.0
 
Feb. 23, 2021, 1 p.m. 0.3 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 26.0 ppb (25) N/A N/A 7.0 μg/m3 (30) 30.0
 
Feb. 23, 2021, noon 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
 
Feb. 23, 2021, 11 a.m. 0.3 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 27.0 ppb (25) N/A N/A 8.0 μg/m3 (34) 34.0
 
Feb. 23, 2021, 10 a.m. 0.5 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 25.0 ppb (24) N/A N/A 7.0 μg/m3 (30) 30.0
 
Feb. 23, 2021, 9 a.m. 0.6 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 24.0 ppb (23) N/A N/A 4.0 μg/m3 (17) 23.0
 
Feb. 23, 2021, 8 a.m. 0.5 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 26.0 ppb (25) N/A N/A 4.0 μg/m3 (17) 25.0
 
Feb. 23, 2021, 7 a.m. 0.4 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 24.0 ppb (23) N/A N/A 6.0 μg/m3 (25) 25.0
 
Feb. 23, 2021, 6 a.m. 0.6 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 27.0 ppb (25) N/A N/A 7.0 μg/m3 (30) 30.0
 
Feb. 23, 2021, 5 a.m. 0.6 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 29.0 ppb (27) N/A N/A 6.0 μg/m3 (25) 27.0
 
Feb. 23, 2021, 4 a.m. 0.4 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 29.0 ppb (27) N/A N/A 4.0 μg/m3 (17) 27.0
 
Feb. 23, 2021, 3 a.m. 0.7 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 34.0 ppb (32) N/A N/A -1.0 μg/m3 (0) 32.0
 
Feb. 23, 2021, 2 a.m. 1.1 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (36) N/A N/A -2.0 μg/m3 (0) 36.0
 
Feb. 23, 2021, 1 a.m. 1.2 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (38) N/A N/A 1.0 μg/m3 (5) 38.0
 
Feb. 23, 2021, midnight 1.1 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) N/A N/A 6.0 μg/m3 (25) 39.0
 
Feb. 22, 2021, 11 p.m. 0.6 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (40) N/A N/A 12.0 μg/m3 (50) 50.0
 
Feb. 22, 2021, 10 p.m. 0.4 ppb (1) 0.1 ppb (1) N/A 0.0 ppb (0) N/A N/A 44.0 ppb (41) N/A N/A 15.0 μg/m3 (58) 58.0
 
Feb. 22, 2021, 9 p.m. 0.2 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 43.0 ppb (40) N/A N/A 12.0 μg/m3 (50) 50.0
 
Feb. 22, 2021, 8 p.m. 0.3 ppb (1) 0.1 ppb (1) N/A 0.0 ppb (0) N/A N/A 42.0 ppb (39) N/A N/A 8.0 μg/m3 (34) 39.0
 
Feb. 22, 2021, 7 p.m. 0.3 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 41.0 ppb (38) N/A N/A 8.0 μg/m3 (34) 38.0
 
Feb. 22, 2021, 6 p.m. 0.5 ppb (1) 0.1 ppb (1) N/A 0.0 ppb (0) N/A N/A 40.0 ppb (38) N/A N/A 7.0 μg/m3 (30) 38.0
 
Feb. 22, 2021, 5 p.m. 0.7 ppb (1) 0.3 ppb (1) N/A 0.0 ppb (0) N/A N/A 36.0 ppb (34) N/A N/A 6.0 μg/m3 (25) 34.0
 
Feb. 22, 2021, 4 p.m. 0.6 ppb (1) 0.2 ppb (1) N/A 0.0 ppb (0) N/A N/A 33.0 ppb (31) N/A N/A 5.0 μg/m3 (21) 31.0
 
Feb. 22, 2021, 3 p.m. 0.7 ppb (1) 0.2 ppb (1) N/A 0.0 ppb (0) N/A N/A 31.0 ppb (29) N/A N/A 5.0 μg/m3 (21) 29.0
 
Feb. 22, 2021, 2 p.m. 0.6 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 29.0 ppb (27) N/A N/A 6.0 μg/m3 (25) 27.0
 
Feb. 22, 2021, 1 p.m. 0.5 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 30.0 ppb (28) N/A N/A 7.0 μg/m3 (30) 30.0
 
Feb. 22, 2021, noon 0.9 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 28.0 ppb (26) N/A N/A 7.0 μg/m3 (30) 30.0
 
Feb. 22, 2021, 11 a.m. 0.9 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 28.0 ppb (26) N/A N/A 7.0 μg/m3 (30) 30.0
 
Feb. 22, 2021, 10 a.m. 0.6 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 30.0 ppb (28) N/A N/A 8.0 μg/m3 (34) 34.0
 
Feb. 22, 2021, 9 a.m. 0.7 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 30.0 ppb (28) N/A N/A 7.0 μg/m3 (30) 30.0
 
Feb. 22, 2021, 8 a.m. 0.5 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 29.0 ppb (27) N/A N/A 6.0 μg/m3 (25) 27.0
 
Feb. 22, 2021, 7 a.m. 0.2 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Feb. 22, 2021, 6 a.m. 0.2 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 32.0 ppb (30) N/A N/A 6.0 μg/m3 (25) 30.0
 
Feb. 22, 2021, 5 a.m. 0.4 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 38.0 ppb (36) N/A N/A 8.0 μg/m3 (34) 36.0
 
Feb. 22, 2021, 4 a.m. 3.9 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 35.0 ppb (33) N/A N/A 7.0 μg/m3 (30) 33.0
 
Feb. 22, 2021, 3 a.m. 0.7 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 36.0 ppb (34) N/A N/A 7.0 μg/m3 (30) 34.0
 
Feb. 22, 2021, 2 a.m. 0.2 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 38.0 ppb (36) N/A N/A 7.0 μg/m3 (30) 36.0
 
Feb. 22, 2021, 1 a.m. 0.2 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 42.0 ppb (39) N/A N/A 7.0 μg/m3 (30) 39.0
 
Feb. 22, 2021, midnight 0.2 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 44.0 ppb (41) N/A N/A 7.0 μg/m3 (30) 41.0
 
Feb. 21, 2021, 11 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 45.0 ppb (42) N/A N/A 8.0 μg/m3 (34) 42.0
 
Feb. 21, 2021, 10 p.m. 0.1 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 45.0 ppb (42) N/A N/A 9.0 μg/m3 (38) 42.0
 
Feb. 21, 2021, 9 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 44.0 ppb (41) N/A N/A 6.0 μg/m3 (25) 41.0
 
Feb. 21, 2021, 8 p.m. 0.1 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 43.0 ppb (40) N/A N/A 6.0 μg/m3 (25) 40.0
 
Feb. 21, 2021, 7 p.m. 0.1 ppb (1) 0.1 ppb (1) N/A 0.0 ppb (0) N/A N/A 42.0 ppb (39) N/A N/A 9.0 μg/m3 (38) 39.0
 
Feb. 21, 2021, 6 p.m. 0.6 ppb (1) 0.2 ppb (1) N/A 0.0 ppb (0) N/A N/A 41.0 ppb (38) N/A N/A 8.0 μg/m3 (34) 38.0
 
Feb. 21, 2021, 5 p.m. 1.6 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (35) N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 21, 2021, 4 p.m. 0.6 ppb (1) 0.2 ppb (1) N/A 0.0 ppb (0) N/A N/A 32.0 ppb (30) N/A N/A 8.0 μg/m3 (34) 34.0
 
Feb. 21, 2021, 3 p.m. 0.6 ppb (1) 0.1 ppb (1) N/A 0.0 ppb (0) N/A N/A 29.0 ppb (27) N/A N/A 4.0 μg/m3 (17) 27.0
 
Feb. 21, 2021, 2 p.m. 0.4 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 31.0 ppb (29) N/A N/A 5.0 μg/m3 (21) 29.0
 
Feb. 21, 2021, 1 p.m. 0.1 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 32.0 ppb (30) N/A N/A 4.0 μg/m3 (17) 30.0
 
Feb. 21, 2021, noon 0.1 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 31.0 ppb (29) N/A N/A 6.0 μg/m3 (25) 29.0
 
Feb. 21, 2021, 11 a.m. 0.3 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 32.0 ppb (30) N/A N/A 8.0 μg/m3 (34) 34.0
 
Feb. 21, 2021, 10 a.m. 0.1 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 36.0 ppb (34) N/A N/A 6.0 μg/m3 (25) 34.0
 
Feb. 21, 2021, 9 a.m. 0.1 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 37.0 ppb (35) N/A N/A 7.0 μg/m3 (30) 35.0
 
Feb. 21, 2021, 8 a.m. 0.1 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 40.0 ppb (38) N/A N/A 8.0 μg/m3 (34) 38.0
 
Feb. 21, 2021, 7 a.m. 0.3 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 40.0 ppb (38) N/A N/A 4.0 μg/m3 (17) 38.0
 
Feb. 21, 2021, 6 a.m. 0.5 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 39.0 ppb (37) N/A N/A 3.0 μg/m3 (13) 37.0
 
Feb. 21, 2021, 5 a.m. 0.1 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 41.0 ppb (38) N/A N/A 4.0 μg/m3 (17) 38.0
 
Feb. 21, 2021, 4 a.m. 0.2 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 41.0 ppb (38) N/A N/A 4.0 μg/m3 (17) 38.0
 
Feb. 21, 2021, 3 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 43.0 ppb (40) N/A N/A 3.0 μg/m3 (13) 40.0
 
Feb. 21, 2021, 2 a.m. 0.1 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 42.0 ppb (39) N/A N/A 1.0 μg/m3 (5) 39.0
 
Feb. 21, 2021, 1 a.m. 0.3 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 42.0 ppb (39) N/A N/A 2.0 μg/m3 (9) 39.0
 
Feb. 21, 2021, midnight 0.4 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 43.0 ppb (40) N/A N/A 3.0 μg/m3 (13) 40.0
 
Feb. 20, 2021, 11 p.m. 0.2 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 43.0 ppb (40) N/A N/A 2.0 μg/m3 (9) 40.0
 
Feb. 20, 2021, 10 p.m. 1.4 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) N/A N/A 6.0 μg/m3 (25) 39.0
 
Feb. 20, 2021, 9 p.m. 1.8 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (38) N/A N/A 7.0 μg/m3 (30) 38.0
 
Feb. 20, 2021, 8 p.m. 1.2 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (36) N/A N/A 3.0 μg/m3 (13) 36.0
 
Feb. 20, 2021, 7 p.m. 0.8 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (33) N/A N/A 2.0 μg/m3 (9) 33.0
 
Feb. 20, 2021, 6 p.m. 0.6 ppb (1) 0.1 ppb (1) N/A 0.0 ppb (0) N/A N/A 28.0 ppb (26) N/A N/A 5.0 μg/m3 (21) 26.0
 
Feb. 20, 2021, 5 p.m. 1.0 ppb (1) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 27.0 ppb (25) N/A N/A 6.0 μg/m3 (25) 25.0
 
Feb. 20, 2021, 4 p.m. 0.8 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 25.0 ppb (24) N/A N/A 7.0 μg/m3 (30) 30.0
 
Feb. 20, 2021, 3 p.m. 0.8 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 22.0 ppb (21) N/A N/A 7.0 μg/m3 (30) 30.0
 
Feb. 20, 2021, 2 p.m. 0.6 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 23.0 ppb (22) N/A N/A 6.0 μg/m3 (25) 25.0
 
Feb. 20, 2021, 1 p.m. 0.5 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 25.0 ppb (24) N/A N/A 5.0 μg/m3 (21) 24.0
 
Feb. 20, 2021, noon 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
 
Feb. 20, 2021, 11 a.m. 0.6 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 27.0 ppb (25) N/A N/A 6.0 μg/m3 (25) 25.0
 
Feb. 20, 2021, 10 a.m. 1.4 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 26.0 ppb (25) N/A N/A 8.0 μg/m3 (34) 34.0
 
Feb. 20, 2021, 9 a.m. 0.3 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 32.0 ppb (30) N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 20, 2021, 8 a.m. 0.2 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 35.0 ppb (33) N/A N/A 10.0 μg/m3 (42) 42.0
 
Feb. 20, 2021, 7 a.m. 0.3 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 34.0 ppb (32) N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 20, 2021, 6 a.m. 0.5 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 31.0 ppb (29) N/A N/A 8.0 μg/m3 (34) 34.0
 
Feb. 20, 2021, 5 a.m. 0.5 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 34.0 ppb (32) N/A N/A 8.0 μg/m3 (34) 34.0
 
Feb. 20, 2021, 4 a.m. 0.3 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 37.0 ppb (35) N/A N/A 3.0 μg/m3 (13) 35.0
 
Feb. 20, 2021, 3 a.m. 0.3 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 38.0 ppb (36) N/A N/A 1.0 μg/m3 (5) 36.0
 
Feb. 20, 2021, 2 a.m. 0.3 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 39.0 ppb (37) N/A N/A 2.0 μg/m3 (9) 37.0