ID: 1585

AQSQID: 460330132

Site Name: Wind Cave

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

Updated: Nov. 24, 2020, 11:40 a.m.

Location: Hot Spgs (Prairie Vista Trl), SD

Reporting: True, Located: True

Current AQI: 31.0

Hot Spgs (Prairie Vista Trl) SD, US: 43.557613, -103.483658

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Nov. 24, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 8.5 μg/m3 (8) 2.9 μg/m3 (13) 31.0
 
Nov. 24, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 12.9 μg/m3 (12) 4.1 μg/m3 (18) 33.0
 
Nov. 24, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 13.1 μg/m3 (13) 3.8 μg/m3 (16) 34.0
 
Nov. 24, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 9.9 μg/m3 (10) 4.5 μg/m3 (19) 34.0
 
Nov. 24, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 9.9 μg/m3 (10) 4.5 μg/m3 (19) 32.0
 
Nov. 24, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 10.0 μg/m3 (10) 5.5 μg/m3 (23) 29.0
 
Nov. 24, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 10.2 μg/m3 (10) 1.7 μg/m3 (8) 32.0
 
Nov. 24, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 10.9 μg/m3 (11) 3.3 μg/m3 (14) 32.0
 
Nov. 24, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 10.7 μg/m3 (10) 3.8 μg/m3 (16) 32.0
 
Nov. 24, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 8.2 μg/m3 (8) 2.9 μg/m3 (13) 35.0
 
Nov. 24, 2020, midnight N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 13.9 μg/m3 (13) 2.6 μg/m3 (11) 34.0
 
Nov. 23, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 13.9 μg/m3 (13) 2.2 μg/m3 (10) 35.0
 
Nov. 23, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 13.2 μg/m3 (13) 2.6 μg/m3 (11) 37.0
 
Nov. 23, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 14.9 μg/m3 (14) 2.2 μg/m3 (10) 35.0
 
Nov. 23, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 7.8 μg/m3 (8) 0.7 μg/m3 (3) 36.0
 
Nov. 23, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 13.0 μg/m3 (13) 1.2 μg/m3 (5) 37.0
 
Nov. 23, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 10.7 μg/m3 (10) 2.0 μg/m3 (9) 37.0
 
Nov. 23, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 8.0 μg/m3 (8) 0.7 μg/m3 (3) 36.0
 
Nov. 23, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 10.5 μg/m3 (10) 1.0 μg/m3 (5) 36.0
 
Nov. 23, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 15.4 μg/m3 (15) -0.2 μg/m3 (0) 36.0
 
Nov. 23, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 8.5 μg/m3 (8) -0.4 μg/m3 (0) 36.0
 
Nov. 23, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 14.6 μg/m3 (14) 2.0 μg/m3 (9) 34.0
 
Nov. 23, 2020, noon N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 9.4 μg/m3 (9) 3.8 μg/m3 (16) 33.0
 
Nov. 23, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 14.4 μg/m3 (14) 3.9 μg/m3 (17) 32.0
 
Nov. 23, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 8.4 μg/m3 (8) 3.6 μg/m3 (16) 32.0
 
Nov. 23, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 8.7 μg/m3 (9) 4.3 μg/m3 (18) 33.0
 
Nov. 23, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 11.2 μg/m3 (11) 1.5 μg/m3 (7) 34.0
 
Nov. 23, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 8.2 μg/m3 (8) 0.7 μg/m3 (3) 34.0
 
Nov. 23, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 9.9 μg/m3 (10) 1.2 μg/m3 (5) 34.0
 
Nov. 23, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 11.9 μg/m3 (12) 3.1 μg/m3 (13) 34.0
 
Nov. 23, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 5.8 μg/m3 (6) 4.3 μg/m3 (18) 34.0
 
Nov. 23, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 4.5 μg/m3 (5) 0.5 μg/m3 (3) 35.0
 
Nov. 23, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 5.5 μg/m3 (6) 0.0 μg/m3 (0) 36.0
 
Nov. 23, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 4.8 μg/m3 (5) 2.4 μg/m3 (10) 36.0
 
Nov. 23, 2020, midnight N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 1.9 μg/m3 (2) 1.2 μg/m3 (5) 36.0
 
Nov. 22, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 0.4 μg/m3 (1) 0.0 μg/m3 (0) 35.0
 
Nov. 22, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 0.7 μg/m3 (1) 1.9 μg/m3 (8) 36.0
 
Nov. 22, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 3.6 μg/m3 (4) 1.2 μg/m3 (5) 38.0
 
Nov. 22, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 4.5 μg/m3 (5) -0.2 μg/m3 (0) 37.0
 
Nov. 22, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 3.1 μg/m3 (3) 0.5 μg/m3 (3) 36.0
 
Nov. 22, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 15.3 μg/m3 (15) -0.7 μg/m3 (0) 36.0
 
Nov. 22, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 6.8 μg/m3 (7) -0.9 μg/m3 (0) 35.0
 
Nov. 22, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 12.2 μg/m3 (12) 0.5 μg/m3 (3) 32.0
 
Nov. 22, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 2.6 μg/m3 (3) 1.9 μg/m3 (8) 31.0
 
Nov. 22, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 3.5 μg/m3 (4) 1.7 μg/m3 (8) 30.0
 
Nov. 22, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 3.8 μg/m3 (4) 3.1 μg/m3 (13) 31.0
 
Nov. 22, 2020, noon N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 4.0 μg/m3 (4) 3.6 μg/m3 (16) 32.0
 
Nov. 22, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 1.9 μg/m3 (2) 3.1 μg/m3 (13) 33.0
 
Nov. 22, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 4.0 μg/m3 (4) 3.3 μg/m3 (14) 33.0
 
Nov. 22, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 5.7 μg/m3 (6) 0.0 μg/m3 (0) 34.0
 
Nov. 22, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 5.3 μg/m3 (5) 1.2 μg/m3 (5) 34.0
 
Nov. 22, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 7.5 μg/m3 (7) 1.9 μg/m3 (8) 33.0
 
Nov. 22, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 11.6 μg/m3 (11) 2.5 μg/m3 (11) 35.0
 
Nov. 22, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 10.9 μg/m3 (11) 3.6 μg/m3 (16) 35.0
 
Nov. 22, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 4.8 μg/m3 (5) 4.8 μg/m3 (20) 35.0
 
Nov. 22, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 6.5 μg/m3 (7) 3.6 μg/m3 (16) 35.0
 
Nov. 22, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 8.5 μg/m3 (8) 4.1 μg/m3 (18) 37.0
 
Nov. 22, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 1.7 μg/m3 (2) 3.8 μg/m3 (16) 37.0
 
Nov. 22, 2020, midnight N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A -1.6 μg/m3 (0) 1.2 μg/m3 (5) 35.0
 
Nov. 21, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 1.7 μg/m3 (2) -0.9 μg/m3 (0) 35.0
 
Nov. 21, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.9 μg/m3 (4) 4.0
 
Nov. 21, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 6.8 μg/m3 (7) 2.4 μg/m3 (10) 36.0
 
Nov. 21, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 7.5 μg/m3 (7) 0.2 μg/m3 (1) 33.0
 
Nov. 21, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 8.8 μg/m3 (9) -1.4 μg/m3 (0) 33.0
 
Nov. 21, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 9.0 μg/m3 (9) -0.4 μg/m3 (0) 34.0
 
Nov. 21, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 20.0 μg/m3 (19) -0.7 μg/m3 (0) 32.0
 
Nov. 21, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 8.0 μg/m3 (8) 1.0 μg/m3 (5) 31.0
 
Nov. 21, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 10.2 μg/m3 (10) -0.2 μg/m3 (0) 28.0
 
Nov. 21, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 7.2 μg/m3 (7) -1.9 μg/m3 (0) 33.0
 
Nov. 21, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 5.7 μg/m3 (6) 0.2 μg/m3 (1) 34.0
 
Nov. 21, 2020, noon N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 2.9 μg/m3 (3) 1.7 μg/m3 (8) 34.0
 
Nov. 21, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 2.9 μg/m3 (3) 1.5 μg/m3 (7) 35.0
 
Nov. 21, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 5.0 μg/m3 (5) -0.9 μg/m3 (0) 34.0
 
Nov. 21, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 5.3 μg/m3 (5) 1.0 μg/m3 (5) 33.0
 
Nov. 21, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 4.3 μg/m3 (4) 2.5 μg/m3 (11) 30.0
 
Nov. 21, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 6.2 μg/m3 (6) 2.9 μg/m3 (13) 30.0
 
Nov. 21, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 4.2 μg/m3 (4) 4.3 μg/m3 (18) 31.0
 
Nov. 21, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 2.4 μg/m3 (3) 2.5 μg/m3 (11) 32.0
 
Nov. 21, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 2.8 μg/m3 (3) 2.2 μg/m3 (10) 32.0
 
Nov. 21, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 4.5 μg/m3 (5) 1.2 μg/m3 (5) 33.0
 
Nov. 21, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 6.5 μg/m3 (7) 0.2 μg/m3 (1) 34.0
 
Nov. 21, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 7.7 μg/m3 (8) 0.2 μg/m3 (1) 34.0
 
Nov. 21, 2020, midnight N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 1.5 μg/m3 (2) 1.5 μg/m3 (7) 33.0
 
Nov. 20, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A -1.2 μg/m3 (0) 2.8 μg/m3 (12) 30.0
 
Nov. 20, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A -2.6 μg/m3 (0) 1.0 μg/m3 (5) 31.0
 
Nov. 20, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A -1.1 μg/m3 (0) -2.4 μg/m3 (0) 36.0
 
Nov. 20, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 2.1 μg/m3 (2) -1.4 μg/m3 (0) 37.0
 
Nov. 20, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 4.4 μg/m3 (5) 0.0 μg/m3 (0) 36.0
 
Nov. 20, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 6.8 μg/m3 (7) -0.9 μg/m3 (0) 35.0
 
Nov. 20, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 9.8 μg/m3 (10) 1.2 μg/m3 (5) 33.0
 
Nov. 20, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 9.1 μg/m3 (9) -0.2 μg/m3 (0) 33.0
 
Nov. 20, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 6.3 μg/m3 (6) -0.9 μg/m3 (0) 33.0
 
Nov. 20, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 1.4 μg/m3 (2) -0.4 μg/m3 (0) 34.0
 
Nov. 20, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A -0.2 μg/m3 (0) -1.2 μg/m3 (0) 35.0
 
Nov. 20, 2020, noon N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 1.4 μg/m3 (2) -0.4 μg/m3 (0) 35.0
 
Nov. 20, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 5.1 μg/m3 (5) 0.5 μg/m3 (3) 35.0
 
Nov. 20, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 6.5 μg/m3 (7) 3.6 μg/m3 (16) 35.0
 
Nov. 20, 2020, 9 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) 4.5 μg/m3 (19) 35.0
 
Nov. 20, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 4.5 μg/m3 (5) 1.0 μg/m3 (5) 35.0
 
Nov. 20, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 5.8 μg/m3 (6) 1.2 μg/m3 (5) 34.0
 
Nov. 20, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 1.9 μg/m3 (2) 0.0 μg/m3 (0) 35.0
 
Nov. 20, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 0.7 μg/m3 (1) 0.0 μg/m3 (0) 36.0
 
Nov. 20, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 1.2 μg/m3 (2) 0.5 μg/m3 (3) 37.0
 
Nov. 20, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A -0.4 μg/m3 (0) 1.4 μg/m3 (6) 38.0
 
Nov. 20, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 0.5 μg/m3 (1) 1.0 μg/m3 (5) 38.0
 
Nov. 20, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 3.1 μg/m3 (3) -0.7 μg/m3 (0) 38.0
 
Nov. 20, 2020, midnight N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 3.6 μg/m3 (4) 1.0 μg/m3 (5) 37.0
 
Nov. 19, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 5.3 μg/m3 (5) 0.7 μg/m3 (3) 37.0
 
Nov. 19, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 3.8 μg/m3 (4) 0.0 μg/m3 (0) 37.0
 
Nov. 19, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 8.3 μg/m3 (8) 0.9 μg/m3 (4) 37.0
 
Nov. 19, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 12.2 μg/m3 (12) 0.5 μg/m3 (3) 36.0
 
Nov. 19, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 8.0 μg/m3 (8) -3.1 μg/m3 (0) 37.0
 
Nov. 19, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 7.5 μg/m3 (7) -1.7 μg/m3 (0) 35.0
 
Nov. 19, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 4.8 μg/m3 (5) 0.9 μg/m3 (4) 35.0
 
Nov. 19, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 5.6 μg/m3 (6) 0.7 μg/m3 (3) 32.0
 
Nov. 19, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 6.3 μg/m3 (6) 1.5 μg/m3 (7) 32.0
 
Nov. 19, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 5.1 μg/m3 (5) 0.7 μg/m3 (3) 33.0
 
Nov. 19, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 3.1 μg/m3 (3) -1.1 μg/m3 (0) 33.0
 
Nov. 19, 2020, noon N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 3.1 μg/m3 (3) 0.2 μg/m3 (1) 34.0
 
Nov. 19, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 4.8 μg/m3 (5) 0.7 μg/m3 (3) 33.0
 
Nov. 19, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 6.3 μg/m3 (6) -0.9 μg/m3 (0) 31.0
 
Nov. 19, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 10.4 μg/m3 (10) 1.0 μg/m3 (5) 30.0
 
Nov. 19, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 8.0 μg/m3 (8) 1.7 μg/m3 (8) 27.0
 
Nov. 19, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 12.7 μg/m3 (12) 1.2 μg/m3 (5) 25.0
 
Nov. 19, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 13.4 μg/m3 (13) 2.2 μg/m3 (10) 26.0
 
Nov. 19, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 11.9 μg/m3 (12) 1.2 μg/m3 (5) 26.0
 
Nov. 19, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 17.0 μg/m3 (16) 3.1 μg/m3 (13) 28.0
 
Nov. 19, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 11.4 μg/m3 (11) 3.3 μg/m3 (14) 28.0
 
Nov. 19, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 11.4 μg/m3 (11) -1.4 μg/m3 (0) 28.0
 
Nov. 19, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 9.2 μg/m3 (9) -0.9 μg/m3 (0) 29.0
 
Nov. 19, 2020, midnight N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 9.3 μg/m3 (9) 0.0 μg/m3 (0) 29.0
 
Nov. 18, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 9.0 μg/m3 (9) 1.4 μg/m3 (6) 30.0
 
Nov. 18, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 8.5 μg/m3 (8) 1.4 μg/m3 (6) 30.0
 
Nov. 18, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 11.4 μg/m3 (11) 0.2 μg/m3 (1) 30.0
 
Nov. 18, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 6.8 μg/m3 (7) -1.7 μg/m3 (0) 29.0
 
Nov. 18, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 6.3 μg/m3 (6) -0.4 μg/m3 (0) 30.0
 
Nov. 18, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 6.6 μg/m3 (7) 1.2 μg/m3 (5) 30.0
 
Nov. 18, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 8.7 μg/m3 (9) -1.7 μg/m3 (0) 29.0
 
Nov. 18, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 6.3 μg/m3 (6) -0.2 μg/m3 (0) 29.0
 
Nov. 18, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 8.5 μg/m3 (8) 0.5 μg/m3 (3) 29.0
 
Nov. 18, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 12.2 μg/m3 (12) 0.2 μg/m3 (1) 30.0
 
Nov. 18, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 7.7 μg/m3 (8) 0.4 μg/m3 (2) 29.0
 
Nov. 18, 2020, noon N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 7.2 μg/m3 (7) -1.7 μg/m3 (0) 29.0
 
Nov. 18, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 4.5 μg/m3 (5) -1.4 μg/m3 (0) 29.0
 
Nov. 18, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 3.5 μg/m3 (4) 0.0 μg/m3 (0) 29.0
 
Nov. 18, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 5.3 μg/m3 (5) 1.5 μg/m3 (7) 29.0
 
Nov. 18, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 5.0 μg/m3 (5) 0.2 μg/m3 (1) 30.0
 
Nov. 18, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 6.3 μg/m3 (6) 1.0 μg/m3 (5) 32.0
 
Nov. 18, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 9.5 μg/m3 (9) 1.0 μg/m3 (5) 32.0
 
Nov. 18, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 7.7 μg/m3 (8) 0.2 μg/m3 (1) 32.0
 
Nov. 18, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 7.5 μg/m3 (7) -0.7 μg/m3 (0) 33.0
 
Nov. 18, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 5.0 μg/m3 (5) -3.9 μg/m3 (0) 33.0
 
Nov. 18, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 2.8 μg/m3 (3) -1.9 μg/m3 (0) 34.0
 
Nov. 18, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 4.8 μg/m3 (5) 0.2 μg/m3 (1) 33.0
 
Nov. 18, 2020, midnight N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 7.0 μg/m3 (7) 0.5 μg/m3 (3) 32.0
 
Nov. 17, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 2.6 μg/m3 (3) 0.7 μg/m3 (3) 33.0
 
Nov. 17, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 4.1 μg/m3 (4) 1.4 μg/m3 (6) 34.0
 
Nov. 17, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 6.3 μg/m3 (6) 1.0 μg/m3 (5) 35.0
 
Nov. 17, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 4.3 μg/m3 (4) -1.4 μg/m3 (0) 35.0
 
Nov. 17, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 4.1 μg/m3 (4) 0.0 μg/m3 (0) 34.0
 
Nov. 17, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 3.6 μg/m3 (4) 1.2 μg/m3 (5) 33.0
 
Nov. 17, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 1.8 μg/m3 (2) 2.8 μg/m3 (12) 33.0
 
Nov. 17, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 3.9 μg/m3 (4) 0.9 μg/m3 (4) 31.0
 
Nov. 17, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 8.3 μg/m3 (8) 0.0 μg/m3 (0) 30.0
 
Nov. 17, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 13.9 μg/m3 (13) 0.2 μg/m3 (1) 30.0
 
Nov. 17, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 4.6 μg/m3 (5) -0.4 μg/m3 (0) 29.0
 
Nov. 17, 2020, noon N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 4.8 μg/m3 (5) 1.5 μg/m3 (7) 30.0
 
Nov. 17, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 7.0 μg/m3 (7) 3.1 μg/m3 (13) 33.0