ID: 979

AQSQID: 061070009

Site Name: Sequoia And Kings Canyon - Ash Mountain

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

Updated: April 21, 2021, 7:44 p.m.

Location: Three Rivs (Ash Lane), CA

Reporting: True, Located: True

Current AQI: 38.0

Three Rivs (Ash Lane) CA, US: 36.489399, -118.826897

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
April 21, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 8.0 μg/m3 (34) 38.0
 
April 21, 2021, 5 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
 
April 21, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 13.0 μg/m3 (53) 53.0
 
April 21, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 13.0 μg/m3 (53) 53.0
 
April 21, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 7.0 μg/m3 (30) 30.0
 
April 21, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 8.0 μg/m3 (34) 34.0
 
April 21, 2021, noon N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 6.0 μg/m3 (25) 25.0
 
April 21, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 9.0 μg/m3 (38) 38.0
 
April 21, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 7.0 μg/m3 (30) 30.0
 
April 21, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 9.0 μg/m3 (38) 38.0
 
April 21, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 13.0 μg/m3 (53) 53.0
 
April 21, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 11.0 μg/m3 (46) 46.0
 
April 21, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 12.0 μg/m3 (50) 50.0
 
April 21, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 7.0 μg/m3 (30) 44.0
 
April 21, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A 6.0 μg/m3 (25) 45.0
 
April 21, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A 6.0 μg/m3 (25) 45.0
 
April 21, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A N/A 8.0 μg/m3 (34) 49.0
 
April 21, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A 8.0 μg/m3 (34) 58.0
 
April 21, 2021, midnight N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A N/A 9.0 μg/m3 (38) 65.0
 
April 20, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A N/A 10.0 μg/m3 (42) 74.0
 
April 20, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A N/A 13.0 μg/m3 (53) 74.0
 
April 20, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A N/A 10.0 μg/m3 (42) 68.0
 
April 20, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A N/A 13.0 μg/m3 (53) 65.0
 
April 20, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
April 20, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A N/A 9.0 μg/m3 (38) 61.0
 
April 20, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A 8.0 μg/m3 (34) 55.0
 
April 20, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A N/A 7.0 μg/m3 (30) 49.0
 
April 20, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 6.0 μg/m3 (25) 42.0
 
April 20, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 8.0 μg/m3 (34) 42.0
 
April 20, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 12.0 μg/m3 (50) 50.0
 
April 20, 2021, noon N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 7.0 μg/m3 (30) 46.0
 
April 20, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A 9.0 μg/m3 (38) 48.0
 
April 20, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A N/A 7.0 μg/m3 (30) 49.0
 
April 20, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A 8.0 μg/m3 (34) 48.0
 
April 20, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A N/A 10.0 μg/m3 (42) 49.0
 
April 20, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A N/A 10.0 μg/m3 (42) 50.0
 
April 20, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A 13.0 μg/m3 (53) 53.0
 
April 20, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A N/A 14.0 μg/m3 (55) 55.0
 
April 20, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A N/A 10.0 μg/m3 (42) 51.0
 
April 20, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A 12.0 μg/m3 (50) 58.0
 
April 20, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A N/A 12.0 μg/m3 (50) 74.0
 
April 20, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (94) N/A N/A 12.0 μg/m3 (50) 94.0
 
April 20, 2021, midnight N/A N/A N/A N/A N/A N/A 66.0 ppb (87) N/A N/A 13.0 μg/m3 (53) 87.0
 
April 19, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (84) N/A N/A 12.0 μg/m3 (50) 84.0
 
April 19, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (81) N/A N/A 13.0 μg/m3 (53) 81.0
 
April 19, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (78) N/A N/A 8.0 μg/m3 (34) 78.0
 
April 19, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A N/A 6.0 μg/m3 (25) 71.0
 
April 19, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A N/A 7.0 μg/m3 (30) 61.0
 
April 19, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A 8.0 μg/m3 (34) 58.0
 
April 19, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A 6.0 μg/m3 (25) 55.0
 
April 19, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 6.0 μg/m3 (25) 42.0
 
April 19, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 8.0 μg/m3 (34) 41.0
 
April 19, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 7.0 μg/m3 (30) 42.0
 
April 19, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 5.0 μg/m3 (21) 43.0
 
April 19, 2021, noon N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 4.0 μg/m3 (17) 42.0
 
April 19, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 6.0 μg/m3 (25) 41.0
 
April 19, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 7.0 μg/m3 (30) 41.0
 
April 19, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 7.0 μg/m3 (30) 43.0
 
April 19, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 10.0 μg/m3 (42) 43.0
 
April 19, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 10.0 μg/m3 (42) 43.0
 
April 19, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 10.0 μg/m3 (42) 43.0
 
April 19, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 14.0 μg/m3 (55) 55.0
 
April 19, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 10.0 μg/m3 (42) 46.0
 
April 19, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 11.0 μg/m3 (46) 46.0
 
April 19, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A 9.0 μg/m3 (38) 50.0
 
April 19, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A N/A 16.0 μg/m3 (60) 68.0
 
April 19, 2021, midnight N/A N/A N/A N/A N/A N/A 63.0 ppb (78) N/A N/A 8.0 μg/m3 (34) 78.0
 
April 18, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A N/A 11.0 μg/m3 (46) 71.0
 
April 18, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A N/A 7.0 μg/m3 (30) 65.0
 
April 18, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A 6.0 μg/m3 (25) 55.0
 
April 18, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A 7.0 μg/m3 (30) 55.0
 
April 18, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A 8.0 μg/m3 (34) 50.0
 
April 18, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A 6.0 μg/m3 (25) 48.0
 
April 18, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A 6.0 μg/m3 (25) 48.0
 
April 18, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 3.0 μg/m3 (13) 41.0
 
April 18, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 7.0 μg/m3 (30) 38.0
 
April 18, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 6.0 μg/m3 (25) 38.0
 
April 18, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 3.0 μg/m3 (13) 39.0
 
April 18, 2021, noon N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 5.0 μg/m3 (21) 39.0
 
April 18, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 5.0 μg/m3 (21) 39.0
 
April 18, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 4.0 μg/m3 (17) 38.0
 
April 18, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 6.0 μg/m3 (25) 38.0
 
April 18, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 6.0 μg/m3 (25) 38.0
 
April 18, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 8.0 μg/m3 (34) 38.0
 
April 18, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 7.0 μg/m3 (30) 38.0
 
April 18, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 7.0 μg/m3 (30) 38.0
 
April 18, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 8.0 μg/m3 (34) 38.0
 
April 18, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 8.0 μg/m3 (34) 39.0
 
April 18, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 8.0 μg/m3 (34) 46.0
 
April 18, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A 12.0 μg/m3 (50) 50.0
 
April 18, 2021, midnight N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A 12.0 μg/m3 (50) 55.0
 
April 17, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A 11.0 μg/m3 (46) 58.0
 
April 17, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A 15.0 μg/m3 (58) 58.0
 
April 17, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A N/A 10.0 μg/m3 (42) 65.0
 
April 17, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A N/A 10.0 μg/m3 (42) 65.0
 
April 17, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A 11.0 μg/m3 (46) 58.0
 
April 17, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A N/A 14.0 μg/m3 (55) 55.0
 
April 17, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A 7.0 μg/m3 (30) 48.0
 
April 17, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 9.0 μg/m3 (38) 41.0
 
April 17, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 10.0 μg/m3 (42) 42.0
 
April 17, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 11.0 μg/m3 (46) 46.0
 
April 17, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 11.0 μg/m3 (46) 46.0
 
April 17, 2021, noon N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 9.0 μg/m3 (38) 42.0
 
April 17, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 8.0 μg/m3 (34) 42.0
 
April 17, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 9.0 μg/m3 (38) 40.0
 
April 17, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 8.0 μg/m3 (34) 39.0
 
April 17, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 12.0 μg/m3 (50) 50.0
 
April 17, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 10.0 μg/m3 (42) 42.0
 
April 17, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 11.0 μg/m3 (46) 46.0
 
April 17, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 14.0 μg/m3 (55) 55.0
 
April 17, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A 10.0 μg/m3 (42) 45.0
 
April 17, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A N/A 13.0 μg/m3 (53) 53.0
 
April 17, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A 12.0 μg/m3 (50) 58.0
 
April 17, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (78) N/A N/A 19.0 μg/m3 (66) 78.0
 
April 17, 2021, midnight N/A N/A N/A N/A N/A N/A 64.0 ppb (81) N/A N/A 21.0 μg/m3 (70) 81.0
 
April 16, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (78) N/A N/A 16.0 μg/m3 (60) 78.0
 
April 16, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A N/A 13.0 μg/m3 (53) 74.0
 
April 16, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A N/A 14.0 μg/m3 (55) 71.0
 
April 16, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A N/A 15.0 μg/m3 (58) 61.0
 
April 16, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A N/A 12.0 μg/m3 (50) 51.0
 
April 16, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A 9.0 μg/m3 (38) 50.0
 
April 16, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A N/A 11.0 μg/m3 (46) 51.0
 
April 16, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 12.0 μg/m3 (50) 50.0
 
April 16, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 9.0 μg/m3 (38) 39.0
 
April 16, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 8.0 μg/m3 (34) 39.0
 
April 16, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 12.0 μg/m3 (50) 50.0
 
April 16, 2021, noon N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 12.0 μg/m3 (50) 50.0
 
April 16, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 8.0 μg/m3 (34) 41.0
 
April 16, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 11.0 μg/m3 (46) 46.0
 
April 16, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 11.0 μg/m3 (46) 46.0
 
April 16, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 12.0 μg/m3 (50) 50.0
 
April 16, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 11.0 μg/m3 (46) 46.0
 
April 16, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A 9.0 μg/m3 (38) 45.0
 
April 16, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A 16.0 μg/m3 (60) 60.0
 
April 16, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A 9.0 μg/m3 (38) 45.0
 
April 16, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 15.0 μg/m3 (58) 58.0
 
April 16, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A N/A 15.0 μg/m3 (58) 58.0
 
April 16, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A N/A 14.0 μg/m3 (55) 71.0
 
April 16, 2021, midnight N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A N/A 12.0 μg/m3 (50) 68.0
 
April 15, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A N/A 11.0 μg/m3 (46) 68.0
 
April 15, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A 6.0 μg/m3 (25) 55.0
 
April 15, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A N/A 7.0 μg/m3 (30) 51.0
 
April 15, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A N/A 10.0 μg/m3 (42) 50.0
 
April 15, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A N/A 9.0 μg/m3 (38) 49.0
 
April 15, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A 10.0 μg/m3 (42) 48.0
 
April 15, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 7.0 μg/m3 (30) 46.0
 
April 15, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 7.0 μg/m3 (30) 44.0
 
April 15, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 6.0 μg/m3 (25) 40.0
 
April 15, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 7.0 μg/m3 (30) 39.0
 
April 15, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 8.0 μg/m3 (34) 40.0
 
April 15, 2021, noon N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 8.0 μg/m3 (34) 40.0
 
April 15, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 5.0 μg/m3 (21) 40.0
 
April 15, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 7.0 μg/m3 (30) 40.0
 
April 15, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 17.0 μg/m3 (62) 62.0
 
April 15, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 10.0 μg/m3 (42) 42.0
 
April 15, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 10.0 μg/m3 (42) 42.0
 
April 15, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 12.0 μg/m3 (50) 50.0
 
April 15, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 12.0 μg/m3 (50) 50.0
 
April 15, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 14.0 μg/m3 (55) 55.0
 
April 15, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 10.0 μg/m3 (42) 44.0
 
April 15, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A 16.0 μg/m3 (60) 60.0
 
April 15, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A 14.0 μg/m3 (55) 58.0
 
April 15, 2021, midnight N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A N/A 12.0 μg/m3 (50) 61.0
 
April 14, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A N/A 12.0 μg/m3 (50) 61.0
 
April 14, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A 11.0 μg/m3 (46) 55.0
 
April 14, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A N/A 11.0 μg/m3 (46) 49.0
 
April 14, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A 7.0 μg/m3 (30) 48.0
 
April 14, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 8.0 μg/m3 (34) 46.0