ID: 2816

AQSQID: 320311007

Site Name: Spanish Springs

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

Updated: April 10, 2021, 7:43 p.m.

Location: Sparks (Halcyon Court), NV

Reporting: True, Located: True

Current AQI: 36.0

Sparks (Halcyon Court) NV, US: 39.621462, -119.718738

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
April 10, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 11.0 μg/m3 (11) 7.0 μg/m3 (30) 36.0
 
April 10, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 13.0 μg/m3 (13) 4.0 μg/m3 (17) 34.0
 
April 10, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 11.0 μg/m3 (11) 4.0 μg/m3 (17) 31.0
 
April 10, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 20.0 μg/m3 (19) 6.0 μg/m3 (25) 25.0
 
April 10, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A 36.0 μg/m3 (34) 9.0 μg/m3 (38) 38.0
 
April 10, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A 13.0 μg/m3 (13) 8.0 μg/m3 (34) 34.0
 
April 10, 2021, noon N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A 17.0 μg/m3 (16) 6.0 μg/m3 (25) 25.0
 
April 10, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 15.0 μg/m3 (14) 5.0 μg/m3 (21) 21.0
 
April 10, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 10.0 μg/m3 (10) 6.0 μg/m3 (25) 25.0
 
April 10, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 13.0 μg/m3 (13) 5.0 μg/m3 (21) 30.0
 
April 10, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 8.0 μg/m3 (8) 4.0 μg/m3 (17) 31.0
 
April 10, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 15.0 μg/m3 (14) 6.0 μg/m3 (25) 31.0
 
April 10, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 8.0 μg/m3 (8) 8.0 μg/m3 (34) 34.0
 
April 10, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 11.0 μg/m3 (11) 11.0 μg/m3 (46) 46.0
 
April 10, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 17.0 μg/m3 (16) 5.0 μg/m3 (21) 31.0
 
April 10, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 19.0 μg/m3 (18) 9.0 μg/m3 (38) 38.0
 
April 10, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 18.0 μg/m3 (17) 7.0 μg/m3 (30) 32.0
 
April 10, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 18.0 μg/m3 (17) 3.0 μg/m3 (13) 35.0
 
April 10, 2021, midnight N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 13.0 μg/m3 (13) 5.0 μg/m3 (21) 36.0
 
April 9, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 21.0 μg/m3 (20) 4.0 μg/m3 (17) 36.0
 
April 9, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 12.0 μg/m3 (12) 4.0 μg/m3 (17) 38.0
 
April 9, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 12.0 μg/m3 (12) 6.0 μg/m3 (25) 39.0
 
April 9, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 10.0 μg/m3 (10) 4.0 μg/m3 (17) 38.0
 
April 9, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 12.0 μg/m3 (12) 4.0 μg/m3 (17) 36.0
 
April 9, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 19.0 μg/m3 (18) 6.0 μg/m3 (25) 32.0
 
April 9, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 16.0 μg/m3 (15) 7.0 μg/m3 (30) 30.0
 
April 9, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 20.0 μg/m3 (19) 7.0 μg/m3 (30) 30.0
 
April 9, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A 42.0 μg/m3 (39) 8.0 μg/m3 (34) 39.0
 
April 9, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) N/A 53.0 μg/m3 (50) 10.0 μg/m3 (42) 50.0
 
April 9, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) N/A 28.0 μg/m3 (26) 11.0 μg/m3 (46) 46.0
 
April 9, 2021, noon N/A N/A N/A N/A N/A N/A 5.0 ppb (5) N/A 21.0 μg/m3 (20) 8.0 μg/m3 (34) 34.0
 
April 9, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A 14.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
April 9, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A 21.0 μg/m3 (20) 7.0 μg/m3 (30) 30.0
 
April 9, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A 17.0 μg/m3 (16) 9.0 μg/m3 (38) 38.0
 
April 9, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A 13.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
April 9, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 13.0 μg/m3 (13) 5.0 μg/m3 (21) 22.0
 
April 9, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 13.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
April 9, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 9.0 μg/m3 (9) 5.0 μg/m3 (21) 28.0
 
April 9, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 16.0 μg/m3 (15) 5.0 μg/m3 (21) 27.0
 
April 9, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 25.0 μg/m3 (24) 7.0 μg/m3 (30) 30.0
 
April 9, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 15.0 μg/m3 (14) 5.0 μg/m3 (21) 31.0
 
April 9, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 10.0 μg/m3 (10) 6.0 μg/m3 (25) 33.0
 
April 9, 2021, midnight N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 16.0 μg/m3 (15) 3.0 μg/m3 (13) 34.0
 
April 8, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 29.0 μg/m3 (27) 3.0 μg/m3 (13) 34.0
 
April 8, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 18.0 μg/m3 (17) 3.0 μg/m3 (13) 33.0
 
April 8, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 10.0 μg/m3 (10) 4.0 μg/m3 (17) 34.0
 
April 8, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 10.0 μg/m3 (10) 4.0 μg/m3 (17) 34.0
 
April 8, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 9.0 μg/m3 (9) 2.0 μg/m3 (9) 35.0
 
April 8, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 15.0 μg/m3 (14) 2.0 μg/m3 (9) 34.0
 
April 8, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 6.0 μg/m3 (6) 3.0 μg/m3 (13) 34.0
 
April 8, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 22.0 μg/m3 (21) 3.0 μg/m3 (13) 31.0
 
April 8, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 16.0 μg/m3 (15) 4.0 μg/m3 (17) 26.0
 
April 8, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A 32.0 μg/m3 (30) 6.0 μg/m3 (25) 30.0
 
April 8, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A 19.0 μg/m3 (18) 5.0 μg/m3 (21) 21.0
 
April 8, 2021, noon N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A 9.0 μg/m3 (9) 7.0 μg/m3 (30) 30.0
 
April 8, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 10.0 μg/m3 (10) 6.0 μg/m3 (25) 25.0
 
April 8, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 7.0 μg/m3 (7) 4.0 μg/m3 (17) 26.0
 
April 8, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 7.0 μg/m3 (7) 4.0 μg/m3 (17) 26.0
 
April 8, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 6.0 μg/m3 (6) 4.0 μg/m3 (17) 35.0
 
April 8, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 9.0 μg/m3 (9) 5.0 μg/m3 (21) 35.0
 
April 8, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 10.0 μg/m3 (10) 4.0 μg/m3 (17) 35.0
 
April 8, 2021, 5 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) 5.0 μg/m3 (21) 38.0
 
April 8, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 9.0 μg/m3 (9) 3.0 μg/m3 (13) 37.0
 
April 8, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 14.0 μg/m3 (13) 2.0 μg/m3 (9) 38.0
 
April 8, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 9.0 μg/m3 (9) 4.0 μg/m3 (17) 38.0
 
April 8, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 13.0 μg/m3 (13) 6.0 μg/m3 (25) 39.0
 
April 8, 2021, midnight N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 23.0 μg/m3 (22) 1.0 μg/m3 (5) 40.0
 
April 7, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 26.0 μg/m3 (25) 5.0 μg/m3 (21) 38.0
 
April 7, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 54.0 μg/m3 (50) 5.0 μg/m3 (21) 50.0
 
April 7, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 29.0 μg/m3 (27) 3.0 μg/m3 (13) 39.0
 
April 7, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 12.0 μg/m3 (12) 4.0 μg/m3 (17) 39.0
 
April 7, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 10.0 μg/m3 (10) 2.0 μg/m3 (9) 38.0
 
April 7, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 12.0 μg/m3 (12) 4.0 μg/m3 (17) 36.0
 
April 7, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 21.0 μg/m3 (20) 4.0 μg/m3 (17) 30.0
 
April 7, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 17.0 μg/m3 (16) 6.0 μg/m3 (25) 25.0
 
April 7, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A 32.0 μg/m3 (30) 10.0 μg/m3 (42) 42.0
 
April 7, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) N/A 29.0 μg/m3 (27) 6.0 μg/m3 (25) 27.0
 
April 7, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 27.0 μg/m3 (25) 7.0 μg/m3 (30) 30.0
 
April 7, 2021, noon N/A N/A N/A N/A N/A N/A 4.0 ppb (4) N/A 24.0 μg/m3 (23) 12.0 μg/m3 (50) 50.0
 
April 7, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A 12.0 μg/m3 (12) 9.0 μg/m3 (38) 38.0
 
April 7, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A 17.0 μg/m3 (16) 3.0 μg/m3 (13) 16.0
 
April 7, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A 12.0 μg/m3 (12) 5.0 μg/m3 (21) 21.0
 
April 7, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A 16.0 μg/m3 (15) 5.0 μg/m3 (21) 21.0
 
April 7, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 22.0 μg/m3 (21) 7.0 μg/m3 (30) 30.0
 
April 7, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 20.0 μg/m3 (19) 10.0 μg/m3 (42) 42.0
 
April 7, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 17.0 μg/m3 (16) 7.0 μg/m3 (30) 30.0
 
April 7, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 20.0 μg/m3 (19) 2.0 μg/m3 (9) 25.0
 
April 7, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 25.0 μg/m3 (24) 5.0 μg/m3 (21) 31.0
 
April 7, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 19.0 μg/m3 (18) 7.0 μg/m3 (30) 34.0
 
April 7, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 22.0 μg/m3 (21) 9.0 μg/m3 (38) 38.0
 
April 7, 2021, midnight N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 23.0 μg/m3 (22) 7.0 μg/m3 (30) 38.0
 
April 6, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 21.0 μg/m3 (20) 3.0 μg/m3 (13) 40.0
 
April 6, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 17.0 μg/m3 (16) 2.0 μg/m3 (9) 38.0
 
April 6, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 17.0 μg/m3 (16) 5.0 μg/m3 (21) 38.0
 
April 6, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 15.0 μg/m3 (14) 6.0 μg/m3 (25) 38.0
 
April 6, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 22.0 μg/m3 (21) 7.0 μg/m3 (30) 38.0
 
April 6, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 32.0 μg/m3 (30) 8.0 μg/m3 (34) 38.0
 
April 6, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 46.0 μg/m3 (43) 9.0 μg/m3 (38) 43.0
 
April 6, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 42.0 μg/m3 (39) 12.0 μg/m3 (50) 50.0
 
April 6, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A 45.0 μg/m3 (42) 8.0 μg/m3 (34) 42.0
 
April 6, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) N/A 85.0 μg/m3 (66) 10.0 μg/m3 (42) 66.0
 
April 6, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) N/A 32.0 μg/m3 (30) 8.0 μg/m3 (34) 34.0
 
April 6, 2021, noon N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A 26.0 μg/m3 (25) 3.0 μg/m3 (13) 25.0
 
April 6, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 16.0 μg/m3 (15) 3.0 μg/m3 (13) 17.0
 
April 6, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 20.0 μg/m3 (19) 5.0 μg/m3 (21) 21.0
 
April 6, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 19.0 μg/m3 (18) 7.0 μg/m3 (30) 30.0
 
April 6, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 20.0 μg/m3 (19) 7.0 μg/m3 (30) 36.0
 
April 6, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 18.0 μg/m3 (17) 7.0 μg/m3 (30) 38.0
 
April 6, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 19.0 μg/m3 (18) 3.0 μg/m3 (13) 40.0
 
April 6, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 18.0 μg/m3 (17) 3.0 μg/m3 (13) 41.0
 
April 6, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 19.0 μg/m3 (18) 5.0 μg/m3 (21) 45.0
 
April 6, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 14.0 μg/m3 (13) 5.0 μg/m3 (21) 45.0
 
April 6, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 26.0 μg/m3 (25) 6.0 μg/m3 (25) 41.0
 
April 6, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 48.0 μg/m3 (45) 9.0 μg/m3 (38) 45.0
 
April 6, 2021, midnight N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 18.0 μg/m3 (17) 6.0 μg/m3 (25) 34.0
 
April 5, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 12.0 μg/m3 (12) 4.0 μg/m3 (17) 34.0
 
April 5, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 12.0 μg/m3 (12) 2.0 μg/m3 (9) 35.0
 
April 5, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 9.0 μg/m3 (9) 1.0 μg/m3 (5) 35.0
 
April 5, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A N/A 35.0
 
April 5, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
April 5, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 10.0 μg/m3 (10) 5.0 μg/m3 (21) 32.0
 
April 5, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 6.0 μg/m3 (6) 6.0 μg/m3 (25) 30.0
 
April 5, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 9.0 μg/m3 (9) 6.0 μg/m3 (25) 28.0
 
April 5, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 23.0 μg/m3 (22) 4.0 μg/m3 (17) 27.0
 
April 5, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 15.0 μg/m3 (14) 5.0 μg/m3 (21) 27.0
 
April 5, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 4.0 μg/m3 (4) 5.0 μg/m3 (21) 27.0
 
April 5, 2021, noon N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 3.0 μg/m3 (3) 8.0 μg/m3 (34) 34.0
 
April 5, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 6.0 μg/m3 (6) 4.0 μg/m3 (17) 26.0
 
April 5, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 7.0 μg/m3 (7) 3.0 μg/m3 (13) 22.0
 
April 5, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 6.0 μg/m3 (6) 3.0 μg/m3 (13) 19.0
 
April 5, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 6.0 μg/m3 (6) -1.0 μg/m3 (0) 20.0
 
April 5, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 6.0 μg/m3 (6) 0.0 μg/m3 (0) 17.0
 
April 5, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 2.0 μg/m3 (2) 0.0 μg/m3 (0) 23.0
 
April 5, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 4.0 μg/m3 (4) 2.0 μg/m3 (9) 25.0
 
April 5, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 7.0 μg/m3 (7) 4.0 μg/m3 (17) 25.0
 
April 5, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 12.0 μg/m3 (12) 3.0 μg/m3 (13) 27.0
 
April 5, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 15.0 μg/m3 (14) 4.0 μg/m3 (17) 28.0
 
April 5, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 10.0 μg/m3 (10) 5.0 μg/m3 (21) 31.0
 
April 5, 2021, midnight N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 9.0 μg/m3 (9) 4.0 μg/m3 (17) 31.0
 
April 4, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 27.0 μg/m3 (25) 3.0 μg/m3 (13) 29.0
 
April 4, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 24.0 μg/m3 (23) 2.0 μg/m3 (9) 26.0
 
April 4, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 32.0 μg/m3 (30) 1.0 μg/m3 (5) 30.0
 
April 4, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 43.0 μg/m3 (40) 3.0 μg/m3 (13) 40.0
 
April 4, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 27.0 μg/m3 (25) 2.0 μg/m3 (9) 34.0
 
April 4, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 5.0 μg/m3 (5) 1.0 μg/m3 (5) 41.0
 
April 4, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 8.0 μg/m3 (8) 5.0 μg/m3 (21) 41.0
 
April 4, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 16.0 μg/m3 (15) 8.0 μg/m3 (34) 37.0
 
April 4, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 18.0 μg/m3 (17) 9.0 μg/m3 (38) 38.0
 
April 4, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A 28.0 μg/m3 (26) 6.0 μg/m3 (25) 26.0
 
April 4, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A 12.0 μg/m3 (12) 9.0 μg/m3 (38) 38.0
 
April 4, 2021, noon N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A 12.0 μg/m3 (12) 6.0 μg/m3 (25) 25.0
 
April 4, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 19.0 μg/m3 (18) 4.0 μg/m3 (17) 22.0
 
April 4, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 14.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
April 4, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 17.0 μg/m3 (16) 9.0 μg/m3 (38) 38.0
 
April 4, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 17.0 μg/m3 (16) 6.0 μg/m3 (25) 25.0
 
April 4, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 16.0 μg/m3 (15) 9.0 μg/m3 (38) 38.0
 
April 4, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 14.0 μg/m3 (13) 8.0 μg/m3 (34) 34.0
 
April 4, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 21.0 μg/m3 (20) 6.0 μg/m3 (25) 29.0
 
April 4, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 25.0 μg/m3 (24) 10.0 μg/m3 (42) 42.0
 
April 4, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 22.0 μg/m3 (21) 8.0 μg/m3 (34) 34.0
 
April 4, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 23.0 μg/m3 (22) 7.0 μg/m3 (30) 38.0
 
April 4, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 28.0 μg/m3 (26) 7.0 μg/m3 (30) 38.0
 
April 4, 2021, midnight N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 18.0 μg/m3 (17) 7.0 μg/m3 (30) 39.0
 
April 3, 2021, 11 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) 4.0 μg/m3 (17) 41.0
 
April 3, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 15.0 μg/m3 (14) 5.0 μg/m3 (21) 42.0
 
April 3, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 9.0 μg/m3 (9) 2.0 μg/m3 (9) 45.0
 
April 3, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 14.0 μg/m3 (13) 4.0 μg/m3 (17) 47.0
 
April 3, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 13.0 μg/m3 (13) 5.0 μg/m3 (21) 46.0