ID: 551

AQSQID: 320030601

Site Name: Boulder City

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

Updated: March 1, 2021, 4:32 p.m.

Location: Boulder City (Industrial Rd), NV

Reporting: True, Located: True

Current AQI: 32.0

Boulder City (Industrial Rd) NV, US: 35.978149, -114.846313

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 1, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 8.3 μg/m3 (8) N/A 32.0
 
March 1, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 6.9 μg/m3 (7) N/A 32.0
 
March 1, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 4.6 μg/m3 (5) N/A 35.0
 
March 1, 2021, noon N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 6.0 μg/m3 (6) N/A 37.0
 
March 1, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 6.6 μg/m3 (7) N/A 35.0
 
March 1, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 5.6 μg/m3 (6) N/A 37.0
 
March 1, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 5.8 μg/m3 (6) N/A 37.0
 
March 1, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 7.8 μg/m3 (8) N/A 37.0
 
March 1, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 6.5 μg/m3 (7) N/A 37.0
 
March 1, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 10.0 μg/m3 (10) N/A 38.0
 
March 1, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 5.1 μg/m3 (5) N/A 38.0
 
March 1, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 3.1 μg/m3 (3) N/A 39.0
 
March 1, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 3.7 μg/m3 (4) N/A 39.0
 
March 1, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 5.6 μg/m3 (6) N/A 38.0
 
March 1, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 5.8 μg/m3 (6) N/A 40.0
 
March 1, 2021, midnight N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 3.4 μg/m3 (4) N/A 40.0
 
Feb. 28, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 3.8 μg/m3 (4) N/A 40.0
 
Feb. 28, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 3.6 μg/m3 (4) N/A 40.0
 
Feb. 28, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 5.5 μg/m3 (6) N/A 40.0
 
Feb. 28, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 3.8 μg/m3 (4) N/A 40.0
 
Feb. 28, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 3.6 μg/m3 (4) N/A 39.0
 
Feb. 28, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 5.4 μg/m3 (5) N/A 39.0
 
Feb. 28, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 4.1 μg/m3 (4) N/A 39.0
 
Feb. 28, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 5.5 μg/m3 (6) N/A 39.0
 
Feb. 28, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 5.3 μg/m3 (5) N/A 39.0
 
Feb. 28, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 4.6 μg/m3 (5) N/A 39.0
 
Feb. 28, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 4.3 μg/m3 (4) N/A 38.0
 
Feb. 28, 2021, noon N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 3.7 μg/m3 (4) N/A 39.0
 
Feb. 28, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 4.2 μg/m3 (4) N/A 39.0
 
Feb. 28, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 4.3 μg/m3 (4) N/A 40.0
 
Feb. 28, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 8.4 μg/m3 (8) N/A 41.0
 
Feb. 28, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 7.6 μg/m3 (8) N/A 41.0
 
Feb. 28, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 10.0 μg/m3 (10) N/A 42.0
 
Feb. 28, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 9.9 μg/m3 (10) N/A 41.0
 
Feb. 28, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 11.3 μg/m3 (11) N/A 41.0
 
Feb. 28, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 7.0 μg/m3 (7) N/A 42.0
 
Feb. 28, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 5.6 μg/m3 (6) N/A 43.0
 
Feb. 28, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 8.3 μg/m3 (8) N/A 43.0
 
Feb. 28, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 9.8 μg/m3 (10) N/A 41.0
 
Feb. 28, 2021, midnight N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 8.4 μg/m3 (8) N/A 42.0
 
Feb. 27, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 7.3 μg/m3 (7) N/A 42.0
 
Feb. 27, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 6.6 μg/m3 (7) N/A 43.0
 
Feb. 27, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 11.0 μg/m3 (11) N/A 43.0
 
Feb. 27, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 8.3 μg/m3 (8) N/A 43.0
 
Feb. 27, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 10.8 μg/m3 (10) N/A 42.0
 
Feb. 27, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 10.6 μg/m3 (10) N/A 42.0
 
Feb. 27, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 12.0 μg/m3 (12) N/A 41.0
 
Feb. 27, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 17.7 μg/m3 (17) N/A 41.0
 
Feb. 27, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 24.7 μg/m3 (23) N/A 40.0
 
Feb. 27, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 34.0 μg/m3 (32) N/A 41.0
 
Feb. 27, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 67.4 μg/m3 (58) N/A 58.0
 
Feb. 27, 2021, noon N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 123.5 μg/m3 (85) N/A 85.0
 
Feb. 27, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 127.0 μg/m3 (87) N/A 87.0
 
Feb. 27, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 55.1 μg/m3 (52) N/A 52.0
 
Feb. 27, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 31.8 μg/m3 (30) N/A 39.0
 
Feb. 27, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 15.7 μg/m3 (15) N/A 34.0
 
Feb. 27, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 18.9 μg/m3 (18) N/A 34.0
 
Feb. 27, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 10.4 μg/m3 (10) N/A 39.0
 
Feb. 27, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 11.2 μg/m3 (11) N/A 38.0
 
Feb. 27, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 10.8 μg/m3 (10) N/A 36.0
 
Feb. 27, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 11.5 μg/m3 (11) N/A 40.0
 
Feb. 27, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 9.5 μg/m3 (9) N/A 38.0
 
Feb. 27, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 12.5 μg/m3 (12) N/A 41.0
 
Feb. 27, 2021, midnight N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 8.1 μg/m3 (8) N/A 42.0
 
Feb. 26, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 12.0 μg/m3 (12) N/A 42.0
 
Feb. 26, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 11.4 μg/m3 (11) N/A 42.0
 
Feb. 26, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 10.8 μg/m3 (10) N/A 40.0
 
Feb. 26, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 12.2 μg/m3 (12) N/A 35.0
 
Feb. 26, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 13.0 μg/m3 (13) N/A 32.0
 
Feb. 26, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 14.3 μg/m3 (14) N/A 29.0
 
Feb. 26, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 13.4 μg/m3 (13) N/A 27.0
 
Feb. 26, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 17.2 μg/m3 (16) N/A 23.0
 
Feb. 26, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 11.2 μg/m3 (11) N/A 28.0
 
Feb. 26, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 22.0 μg/m3 (21) N/A 30.0
 
Feb. 26, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 9.3 μg/m3 (9) N/A 31.0
 
Feb. 26, 2021, noon N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 4.7 μg/m3 (5) N/A 36.0
 
Feb. 26, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 4.4 μg/m3 (5) N/A 37.0
 
Feb. 26, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 6.1 μg/m3 (6) N/A 37.0
 
Feb. 26, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 4.2 μg/m3 (4) N/A 37.0
 
Feb. 26, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 4.9 μg/m3 (5) N/A 38.0
 
Feb. 26, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 5.9 μg/m3 (6) N/A 38.0
 
Feb. 26, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 8.6 μg/m3 (8) N/A 37.0
 
Feb. 26, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 4.4 μg/m3 (5) N/A 38.0
 
Feb. 26, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 5.3 μg/m3 (5) N/A 39.0
 
Feb. 26, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 5.5 μg/m3 (6) N/A 38.0
 
Feb. 26, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 11.0 μg/m3 (11) N/A 38.0
 
Feb. 26, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 7.5 μg/m3 (7) N/A 40.0
 
Feb. 26, 2021, midnight N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 6.1 μg/m3 (6) N/A 44.0
 
Feb. 25, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 5.7 μg/m3 (6) N/A 44.0
 
Feb. 25, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 5.3 μg/m3 (5) N/A 44.0
 
Feb. 25, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 7.8 μg/m3 (8) N/A 43.0
 
Feb. 25, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 9.8 μg/m3 (10) N/A 42.0
 
Feb. 25, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 8.5 μg/m3 (8) N/A 42.0
 
Feb. 25, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 8.2 μg/m3 (8) N/A 41.0
 
Feb. 25, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A N/A 40.0
 
Feb. 25, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A N/A 40.0
 
Feb. 25, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A N/A 39.0
 
Feb. 25, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 7.7 μg/m3 (8) N/A 39.0
 
Feb. 25, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 7.4 μg/m3 (7) N/A 39.0
 
Feb. 25, 2021, noon N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 8.3 μg/m3 (8) N/A 39.0
 
Feb. 25, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 13.5 μg/m3 (13) N/A 39.0
 
Feb. 25, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 12.6 μg/m3 (12) N/A 39.0
 
Feb. 25, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 22.9 μg/m3 (22) N/A 39.0
 
Feb. 25, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 28.8 μg/m3 (27) N/A 39.0
 
Feb. 25, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 22.0 μg/m3 (21) N/A 41.0
 
Feb. 25, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 26.6 μg/m3 (25) N/A 45.0
 
Feb. 25, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 60.6 μg/m3 (54) N/A 54.0
 
Feb. 25, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 79.9 μg/m3 (64) N/A 64.0
 
Feb. 25, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 129.7 μg/m3 (88) N/A 88.0
 
Feb. 25, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 62.5 μg/m3 (55) N/A 55.0
 
Feb. 25, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 56.7 μg/m3 (52) N/A 52.0
 
Feb. 25, 2021, midnight N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 13.3 μg/m3 (13) N/A 43.0
 
Feb. 24, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 17.7 μg/m3 (17) N/A 44.0
 
Feb. 24, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 13.6 μg/m3 (13) N/A 43.0
 
Feb. 24, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 11.7 μg/m3 (11) N/A 43.0
 
Feb. 24, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 10.8 μg/m3 (10) N/A 40.0
 
Feb. 24, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A N/A 37.0
 
Feb. 24, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 13.4 μg/m3 (13) N/A 34.0
 
Feb. 24, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 14.0 μg/m3 (13) N/A 29.0
 
Feb. 24, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A N/A 27.0
 
Feb. 24, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
Feb. 24, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 7.8 μg/m3 (8) N/A 37.0
 
Feb. 24, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 4.9 μg/m3 (5) N/A 38.0
 
Feb. 24, 2021, noon N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 5.8 μg/m3 (6) N/A 38.0
 
Feb. 24, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 5.8 μg/m3 (6) N/A 40.0
 
Feb. 24, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 7.5 μg/m3 (7) N/A 38.0
 
Feb. 24, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 7.4 μg/m3 (7) N/A 37.0
 
Feb. 24, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 5.0 μg/m3 (5) N/A 41.0
 
Feb. 24, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 6.3 μg/m3 (6) N/A 41.0
 
Feb. 24, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 9.7 μg/m3 (9) N/A 41.0
 
Feb. 24, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 12.3 μg/m3 (12) N/A 33.0
 
Feb. 24, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 10.9 μg/m3 (11) N/A 36.0
 
Feb. 24, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 9.0 μg/m3 (9) N/A 38.0
 
Feb. 24, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 13.0 μg/m3 (13) N/A 36.0
 
Feb. 24, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 11.9 μg/m3 (12) N/A 33.0
 
Feb. 24, 2021, midnight N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 9.7 μg/m3 (9) N/A 39.0
 
Feb. 23, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 9.8 μg/m3 (10) N/A 39.0
 
Feb. 23, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 11.4 μg/m3 (11) N/A 39.0
 
Feb. 23, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 9.7 μg/m3 (9) N/A 37.0
 
Feb. 23, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 11.1 μg/m3 (11) N/A 34.0
 
Feb. 23, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 10.4 μg/m3 (10) N/A 31.0
 
Feb. 23, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 14.1 μg/m3 (14) N/A 26.0
 
Feb. 23, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 19.0 μg/m3 (18) N/A 25.0
 
Feb. 23, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 12.4 μg/m3 (12) N/A 25.0
 
Feb. 23, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 8.8 μg/m3 (9) N/A 27.0
 
Feb. 23, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 10.1 μg/m3 (10) N/A 30.0
 
Feb. 23, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 9.3 μg/m3 (9) N/A 28.0
 
Feb. 23, 2021, noon N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 8.4 μg/m3 (8) N/A 31.0
 
Feb. 23, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 8.0 μg/m3 (8) N/A 29.0
 
Feb. 23, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 6.8 μg/m3 (7) N/A 31.0
 
Feb. 23, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 8.9 μg/m3 (9) N/A 31.0
 
Feb. 23, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.8 μg/m3 (10) N/A 10.0
 
Feb. 23, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 10.7 μg/m3 (10) N/A 30.0
 
Feb. 23, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 8.6 μg/m3 (8) N/A 32.0
 
Feb. 23, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 11.9 μg/m3 (12) N/A 31.0
 
Feb. 23, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 8.9 μg/m3 (9) N/A 34.0
 
Feb. 23, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 5.2 μg/m3 (5) N/A 34.0
 
Feb. 23, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 5.8 μg/m3 (6) N/A 33.0
 
Feb. 23, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 9.1 μg/m3 (9) N/A 37.0
 
Feb. 23, 2021, midnight N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 3.7 μg/m3 (4) N/A 38.0
 
Feb. 22, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 6.0 μg/m3 (6) N/A 38.0
 
Feb. 22, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 7.0 μg/m3 (7) N/A 38.0
 
Feb. 22, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 4.7 μg/m3 (5) N/A 38.0
 
Feb. 22, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 5.0 μg/m3 (5) N/A 38.0
 
Feb. 22, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 7.1 μg/m3 (7) N/A 37.0
 
Feb. 22, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 7.3 μg/m3 (7) N/A 37.0
 
Feb. 22, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 3.9 μg/m3 (4) N/A 37.0
 
Feb. 22, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 9.1 μg/m3 (9) N/A 36.0