ID: 1585

AQSQID: 460330132

Site Name: Wind Cave

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

Updated: July 10, 2020, 6:38 p.m.

Location: Hot Spgs (Prairie Vista Trl), SD

Reporting: True, Located: True

Current AQI: 41.0

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
July 10, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A 24.0 μg/m3 (22) 1.9 μg/m3 (8) 41.0
 
July 10, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 19.0 μg/m3 (17) 2.3 μg/m3 (10) 40.0
 
July 10, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 23.0 μg/m3 (21) 4.7 μg/m3 (20) 38.0
 
July 10, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 17.0 μg/m3 (15) 5.2 μg/m3 (22) 37.0
 
July 10, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 10.0 μg/m3 (9) 3.3 μg/m3 (14) 34.0
 
July 10, 2020, noon N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 9.0 μg/m3 (8) 2.6 μg/m3 (11) 31.0
 
July 10, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 12.0 μg/m3 (11) 2.4 μg/m3 (10) 32.0
 
July 10, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 9.0 μg/m3 (8) 1.6 μg/m3 (7) 34.0
 
July 10, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 9.0 μg/m3 (8) 2.6 μg/m3 (11) 36.0
 
July 10, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 11.0 μg/m3 (10) 3.0 μg/m3 (12) 38.0
 
July 10, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 14.0 μg/m3 (13) 2.6 μg/m3 (11) 37.0
 
July 10, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 9.0 μg/m3 (8) 2.9 μg/m3 (12) 35.0
 
July 10, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 10.0 μg/m3 (9) 2.6 μg/m3 (11) 33.0
 
July 10, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 11.0 μg/m3 (10) 2.1 μg/m3 (9) 33.0
 
July 10, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 11.0 μg/m3 (10) 0.1 μg/m3 (0) 35.0
 
July 10, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 11.0 μg/m3 (10) 3.0 μg/m3 (12) 38.0
 
July 10, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 12.0 μg/m3 (11) 5.4 μg/m3 (23) 40.0
 
July 10, 2020, midnight N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A 10.0 μg/m3 (9) 1.1 μg/m3 (5) 42.0
 
July 9, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A 19.0 μg/m3 (17) 0.2 μg/m3 (1) 45.0
 
July 9, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (48) N/A 13.0 μg/m3 (12) 2.3 μg/m3 (10) 48.0
 
July 9, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (46) N/A 13.0 μg/m3 (12) 1.4 μg/m3 (6) 46.0
 
July 9, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A 9.0 μg/m3 (8) 2.4 μg/m3 (10) 45.0
 
July 9, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A 11.0 μg/m3 (10) 2.6 μg/m3 (11) 43.0
 
July 9, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 11.0 μg/m3 (10) 1.6 μg/m3 (7) 40.0
 
July 9, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A 8.0 μg/m3 (7) 3.2 μg/m3 (13) 42.0
 
July 9, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 8.0 μg/m3 (7) 4.2 μg/m3 (18) 37.0
 
July 9, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 8.0 μg/m3 (7) 3.3 μg/m3 (14) 32.0
 
July 9, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 15.0 μg/m3 (14) 0.9 μg/m3 (4) 35.0
 
July 9, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 10.0 μg/m3 (9) 2.1 μg/m3 (9) 33.0
 
July 9, 2020, noon N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 11.0 μg/m3 (10) 3.0 μg/m3 (12) 32.0
 
July 9, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 12.0 μg/m3 (11) 1.6 μg/m3 (7) 30.0
 
July 9, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 12.0 μg/m3 (11) 4.2 μg/m3 (18) 31.0
 
July 9, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 16.0 μg/m3 (15) 1.9 μg/m3 (8) 35.0
 
July 9, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 16.0 μg/m3 (15) 0.4 μg/m3 (2) 38.0
 
July 9, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 10.0 μg/m3 (9) 1.9 μg/m3 (8) 39.0
 
July 9, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 11.0 μg/m3 (10) 1.4 μg/m3 (6) 39.0
 
July 9, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 14.0 μg/m3 (13) 3.2 μg/m3 (13) 40.0
 
July 9, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A 15.0 μg/m3 (14) 6.4 μg/m3 (27) 42.0
 
July 9, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A 14.0 μg/m3 (13) 6.0 μg/m3 (25) 45.0
 
July 9, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A 19.0 μg/m3 (17) 2.1 μg/m3 (9) 45.0
 
July 9, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A 18.0 μg/m3 (16) 1.1 μg/m3 (5) 43.0
 
July 9, 2020, midnight N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A 22.0 μg/m3 (20) 2.8 μg/m3 (12) 45.0
 
July 8, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (46) N/A 26.0 μg/m3 (24) 3.0 μg/m3 (12) 46.0
 
July 8, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (47) N/A 20.0 μg/m3 (18) 1.4 μg/m3 (6) 47.0
 
July 8, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (47) N/A 25.0 μg/m3 (23) 1.6 μg/m3 (7) 47.0
 
July 8, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (48) N/A 23.0 μg/m3 (21) 1.9 μg/m3 (8) 48.0
 
July 8, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (48) N/A 23.0 μg/m3 (21) 2.8 μg/m3 (12) 48.0
 
July 8, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (48) N/A 20.0 μg/m3 (18) 5.5 μg/m3 (23) 48.0
 
July 8, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (46) N/A 22.0 μg/m3 (20) 4.7 μg/m3 (20) 46.0
 
July 8, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A 32.0 μg/m3 (29) 0.4 μg/m3 (2) 45.0
 
July 8, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A 20.0 μg/m3 (18) 0.4 μg/m3 (2) 43.0
 
July 8, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 26.0 μg/m3 (24) 3.8 μg/m3 (16) 36.0
 
July 8, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 27.0 μg/m3 (25) 6.9 μg/m3 (29) 30.0
 
July 8, 2020, noon N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 27.0 μg/m3 (25) 5.5 μg/m3 (23) 29.0
 
July 8, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 23.0 μg/m3 (21) 4.7 μg/m3 (20) 29.0
 
July 8, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 20.0 μg/m3 (18) 6.2 μg/m3 (26) 30.0
 
July 8, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 26.0 μg/m3 (24) 5.7 μg/m3 (24) 31.0
 
July 8, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 33.0 μg/m3 (30) 6.5 μg/m3 (27) 30.0
 
July 8, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 36.0 μg/m3 (33) 5.7 μg/m3 (24) 33.0
 
July 8, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 24.0 μg/m3 (22) 4.2 μg/m3 (18) 32.0
 
July 8, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 31.0 μg/m3 (28) 4.0 μg/m3 (17) 35.0
 
July 8, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 43.0 μg/m3 (39) 3.9 μg/m3 (16) 39.0
 
July 8, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 57.0 μg/m3 (51) 2.6 μg/m3 (11) 51.0
 
July 8, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 28.0 μg/m3 (25) 0.0 μg/m3 (0) 35.0
 
July 8, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 9.0 μg/m3 (8) 0.0 μg/m3 (0) 33.0
 
July 8, 2020, midnight N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 20.0 μg/m3 (18) 4.5 μg/m3 (19) 35.0
 
July 7, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 26.0 μg/m3 (24) 5.1 μg/m3 (21) 39.0
 
July 7, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A 23.0 μg/m3 (21) 3.5 μg/m3 (15) 41.0
 
July 7, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (47) N/A 31.0 μg/m3 (28) 3.7 μg/m3 (15) 47.0
 
July 7, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A 24.0 μg/m3 (22) 6.2 μg/m3 (26) 45.0
 
July 7, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A 26.0 μg/m3 (24) 6.4 μg/m3 (27) 42.0
 
July 7, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 24.0 μg/m3 (22) 6.0 μg/m3 (25) 39.0
 
July 7, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 27.0 μg/m3 (25) 6.4 μg/m3 (27) 37.0
 
July 7, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 21.0 μg/m3 (19) 4.0 μg/m3 (17) 34.0
 
July 7, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 24.0 μg/m3 (22) 2.1 μg/m3 (9) 28.0
 
July 7, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 16.0 μg/m3 (15) 3.3 μg/m3 (14) 27.0
 
July 7, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 14.0 μg/m3 (13) 3.7 μg/m3 (15) 28.0
 
July 7, 2020, noon N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 14.0 μg/m3 (13) 1.1 μg/m3 (5) 31.0
 
July 7, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 13.0 μg/m3 (12) 1.7 μg/m3 (7) 32.0
 
July 7, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 13.0 μg/m3 (12) 1.3 μg/m3 (5) 35.0
 
July 7, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 7.0 μg/m3 (6) 1.1 μg/m3 (5) 36.0
 
July 7, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 10.0 μg/m3 (9) 1.1 μg/m3 (5) 35.0
 
July 7, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 12.0 μg/m3 (11) -1.5 μg/m3 (0) 32.0
 
July 7, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 16.0 μg/m3 (15) -1.2 μg/m3 (0) 31.0
 
July 7, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 14.0 μg/m3 (13) 0.9 μg/m3 (4) 31.0
 
July 7, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 15.0 μg/m3 (14) 4.2 μg/m3 (18) 32.0
 
July 7, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 10.0 μg/m3 (9) 5.9 μg/m3 (25) 36.0
 
July 7, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 17.0 μg/m3 (15) 1.9 μg/m3 (8) 39.0
 
July 7, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A 15.0 μg/m3 (14) 3.2 μg/m3 (13) 42.0
 
July 7, 2020, midnight N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A 11.0 μg/m3 (10) 4.7 μg/m3 (20) 45.0
 
July 6, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A 16.0 μg/m3 (15) 4.4 μg/m3 (18) 45.0
 
July 6, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A 11.0 μg/m3 (10) 1.1 μg/m3 (5) 44.0
 
July 6, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A 13.0 μg/m3 (12) 2.6 μg/m3 (11) 43.0
 
July 6, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A 14.0 μg/m3 (13) 4.0 μg/m3 (17) 42.0
 
July 6, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A 11.0 μg/m3 (10) 1.1 μg/m3 (5) 41.0
 
July 6, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 17.0 μg/m3 (15) 0.0 μg/m3 (0) 40.0
 
July 6, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 9.0 μg/m3 (8) 1.6 μg/m3 (7) 38.0
 
July 6, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 10.0 μg/m3 (9) 2.8 μg/m3 (12) 36.0
 
July 6, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 9.0 μg/m3 (8) 0.9 μg/m3 (4) 35.0
 
July 6, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 13.0 μg/m3 (12) 0.9 μg/m3 (4) 32.0
 
July 6, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 16.0 μg/m3 (15) 1.9 μg/m3 (8) 29.0
 
July 6, 2020, noon N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 13.0 μg/m3 (12) 4.5 μg/m3 (19) 25.0
 
July 6, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 12.0 μg/m3 (11) 5.7 μg/m3 (24) 24.0
 
July 6, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 6.0 μg/m3 (5) 1.4 μg/m3 (6) 22.0
 
July 6, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 5.0 μg/m3 (5) 1.9 μg/m3 (8) 20.0
 
July 6, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 8.0 μg/m3 (7) 2.4 μg/m3 (10) 24.0
 
July 6, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 15.0 μg/m3 (14) 2.6 μg/m3 (11) 25.0
 
July 6, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 9.0 μg/m3 (8) 2.8 μg/m3 (12) 28.0
 
July 6, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 10.0 μg/m3 (9) 1.2 μg/m3 (5) 24.0
 
July 6, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 10.0 μg/m3 (9) 1.6 μg/m3 (7) 28.0
 
July 6, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 11.0 μg/m3 (10) 1.9 μg/m3 (8) 30.0
 
July 6, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 8.0 μg/m3 (7) 3.7 μg/m3 (15) 32.0
 
July 6, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 57.0 μg/m3 (51) 4.0 μg/m3 (17) 51.0
 
July 6, 2020, midnight N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 16.0 μg/m3 (15) 3.3 μg/m3 (14) 40.0
 
July 5, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A 18.0 μg/m3 (16) 4.9 μg/m3 (20) 41.0
 
July 5, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A 16.0 μg/m3 (15) 3.3 μg/m3 (14) 43.0
 
July 5, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A 17.0 μg/m3 (15) 4.0 μg/m3 (17) 44.0
 
July 5, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A 14.0 μg/m3 (13) N/A 44.0
 
July 5, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 17.0 μg/m3 (15) 2.8 μg/m3 (12) 39.0
 
July 5, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 9.0 μg/m3 (8) 0.6 μg/m3 (2) 38.0
 
July 5, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 15.0 μg/m3 (14) 1.9 μg/m3 (8) 38.0
 
July 5, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 9.0 μg/m3 (8) 2.6 μg/m3 (11) 35.0
 
July 5, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 15.0 μg/m3 (14) 2.6 μg/m3 (11) 32.0
 
July 5, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 16.0 μg/m3 (15) 1.4 μg/m3 (6) 29.0
 
July 5, 2020, noon N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 15.0 μg/m3 (14) 2.2 μg/m3 (9) 28.0
 
July 5, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 12.0 μg/m3 (11) 2.1 μg/m3 (9) 33.0
 
July 5, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 8.0 μg/m3 (7) 0.4 μg/m3 (2) 32.0
 
July 5, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 11.0 μg/m3 (10) 0.2 μg/m3 (1) 32.0
 
July 5, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 10.0 μg/m3 (9) -0.7 μg/m3 (0) 32.0
 
July 5, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 10.0 μg/m3 (9) 0.2 μg/m3 (1) 35.0
 
July 5, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 8.0 μg/m3 (7) 0.6 μg/m3 (2) 35.0
 
July 5, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 27.0 μg/m3 (25) 1.9 μg/m3 (8) 37.0
 
July 5, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 15.0 μg/m3 (14) 3.5 μg/m3 (15) 38.0
 
July 5, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 11.0 μg/m3 (10) 2.9 μg/m3 (12) 38.0
 
July 5, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 10.0 μg/m3 (9) 2.7 μg/m3 (11) 38.0
 
July 5, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 8.0 μg/m3 (7) 0.7 μg/m3 (3) 36.0
 
July 5, 2020, midnight N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 28.0 μg/m3 (25) 2.4 μg/m3 (10) 37.0
 
July 4, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 14.0 μg/m3 (13) 3.5 μg/m3 (15) 35.0
 
July 4, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 22.0 μg/m3 (20) 2.1 μg/m3 (9) 40.0
 
July 4, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A 11.0 μg/m3 (10) 3.3 μg/m3 (14) 42.0
 
July 4, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A 16.0 μg/m3 (15) 4.5 μg/m3 (19) 42.0
 
July 4, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A 20.0 μg/m3 (18) 4.7 μg/m3 (20) 41.0
 
July 4, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 17.0 μg/m3 (15) 2.6 μg/m3 (11) 39.0
 
July 4, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 23.0 μg/m3 (21) 3.8 μg/m3 (16) 37.0
 
July 4, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 14.0 μg/m3 (13) 3.3 μg/m3 (14) 32.0
 
July 4, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 24.0 μg/m3 (22) 2.8 μg/m3 (12) 30.0
 
July 4, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 17.0 μg/m3 (15) 0.9 μg/m3 (4) 34.0
 
July 4, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 11.0 μg/m3 (10) 0.4 μg/m3 (2) 34.0
 
July 4, 2020, noon N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 11.0 μg/m3 (10) 2.4 μg/m3 (10) 35.0
 
July 4, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 12.0 μg/m3 (11) 4.0 μg/m3 (17) 35.0
 
July 4, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 16.0 μg/m3 (15) 3.5 μg/m3 (15) 35.0
 
July 4, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 14.0 μg/m3 (13) 1.9 μg/m3 (8) 36.0
 
July 4, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 16.0 μg/m3 (15) 4.0 μg/m3 (17) 36.0
 
July 4, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 20.0 μg/m3 (18) 6.2 μg/m3 (26) 37.0
 
July 4, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 22.0 μg/m3 (20) 4.7 μg/m3 (20) 39.0
 
July 4, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A 29.0 μg/m3 (26) 5.7 μg/m3 (24) 42.0
 
July 4, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A 31.0 μg/m3 (28) 6.9 μg/m3 (29) 42.0
 
July 4, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A 46.0 μg/m3 (42) 6.9 μg/m3 (29) 43.0
 
July 4, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A 22.0 μg/m3 (20) 7.9 μg/m3 (33) 42.0
 
July 4, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 19.0 μg/m3 (17) 9.7 μg/m3 (40) 40.0
 
July 4, 2020, midnight N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A 15.0 μg/m3 (14) 2.4 μg/m3 (10) 41.0
 
July 3, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A 21.0 μg/m3 (19) 3.5 μg/m3 (15) 42.0
 
July 3, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A 17.0 μg/m3 (15) 2.1 μg/m3 (9) 42.0
 
July 3, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A 21.0 μg/m3 (19) 1.9 μg/m3 (8) 42.0
 
July 3, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A 23.0 μg/m3 (21) 3.3 μg/m3 (14) 42.0
 
July 3, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A 23.0 μg/m3 (21) 3.3 μg/m3 (14) 42.0
 
July 3, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A 21.0 μg/m3 (19) 3.8 μg/m3 (16) 41.0
 
July 3, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 25.0 μg/m3 (23) 0.4 μg/m3 (2) 39.0