ID: 250

AQSQID: 080013001

Site Name: Welby - 78th Ave. & Steele St.

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

Updated: Oct. 29, 2020, 8:39 a.m.

Location: Denver (Steele St), CO

Reporting: True, Located: True

Current AQI: 30.0

Denver (Steele St) CO, US: 39.8392, -104.9489

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Oct. 15, 2020, 7 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 37.0 ppb (35) 0.1 ppb (2) 15.1 μg/m3 (14) N/A 28.0
 
Oct. 15, 2020, 6 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 37.0 ppb (35) 0.1 ppb (2) 10.7 μg/m3 (10) N/A 28.0
 
Oct. 15, 2020, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 36.0 ppb (34) 0.1 ppb (2) 17.0 μg/m3 (16) N/A 28.0
 
Oct. 15, 2020, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.1 ppb (2) 13.9 μg/m3 (13) N/A 28.0
 
Oct. 15, 2020, 3 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (35) 0.1 ppb (2) 24.6 μg/m3 (23) N/A 28.0
 
Oct. 15, 2020, 2 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (35) 0.1 ppb (2) 20.8 μg/m3 (20) N/A 28.0
 
Oct. 15, 2020, 1 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (35) 0.1 ppb (2) 22.4 μg/m3 (21) N/A 28.0
 
Oct. 15, 2020, midnight N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 36.0 ppb (34) 0.1 ppb (2) 38.0 μg/m3 (36) N/A 35.0
 
Oct. 14, 2020, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (34) 0.1 ppb (2) 54.9 μg/m3 (51) N/A 50.0
 
Oct. 14, 2020, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (35) 0.1 ppb (2) 60.2 μg/m3 (54) N/A 53.0
 
Oct. 14, 2020, 9 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 38.0 ppb (36) 0.1 ppb (2) 80.4 μg/m3 (64) N/A 63.0
 
Oct. 14, 2020, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (35) 0.1 ppb (2) 98.4 μg/m3 (73) N/A 72.0
 
Oct. 14, 2020, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (34) 0.1 ppb (2) N/A N/A 28.0
 
Oct. 14, 2020, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (33) 0.1 ppb (2) 48.5 μg/m3 (45) N/A 44.0
 
Oct. 14, 2020, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (34) 0.1 ppb (2) 57.8 μg/m3 (53) N/A 51.0
 
Oct. 14, 2020, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (33) 0.1 ppb (2) 71.5 μg/m3 (60) N/A 58.0
 
Oct. 14, 2020, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (32) 0.1 ppb (2) 45.1 μg/m3 (42) N/A 41.0
 
Oct. 14, 2020, 2 p.m. N/A N/A N/A 7.0 ppb (7) N/A 0.0 ppb (0) 28.0 ppb (26) 0.1 ppb (2) 44.6 μg/m3 (42) N/A 41.0
 
Oct. 14, 2020, 1 p.m. N/A N/A N/A 36.0 ppb (34) N/A 1.0 ppb (2) 2.0 ppb (2) 0.5 ppb (6) 138.7 μg/m3 (93) N/A 92.0
 
Oct. 14, 2020, noon N/A N/A N/A 19.0 ppb (18) N/A 0.0 ppb (0) 16.0 ppb (15) 0.2 ppb (3) 58.8 μg/m3 (53) N/A 52.0
 
Oct. 14, 2020, 11 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (31) 0.1 ppb (2) 9.1 μg/m3 (9) N/A 25.0
 
Oct. 14, 2020, 10 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 36.0 ppb (34) 0.0 ppb (0) 23.3 μg/m3 (22) N/A 28.0
 
Oct. 14, 2020, 9 a.m. N/A N/A N/A 17.0 ppb (17) N/A 2.0 ppb (3) 20.0 ppb (19) 0.1 ppb (2) 25.3 μg/m3 (24) N/A 23.0
 
Oct. 14, 2020, 8 a.m. N/A N/A N/A 18.0 ppb (17) N/A 1.0 ppb (2) 18.0 ppb (17) 0.1 ppb (2) 21.9 μg/m3 (21) N/A 20.0
 
Oct. 14, 2020, 7 a.m. N/A N/A N/A 15.0 ppb (15) N/A 0.0 ppb (0) 19.0 ppb (18) 0.1 ppb (2) 58.0 μg/m3 (53) N/A 52.0
 
Oct. 14, 2020, 6 a.m. N/A N/A N/A 12.0 ppb (12) N/A 1.0 ppb (2) 26.0 ppb (25) 0.1 ppb (2) 21.4 μg/m3 (20) N/A 20.0
 
Oct. 14, 2020, 5 a.m. N/A N/A N/A 14.0 ppb (14) N/A 1.0 ppb (2) 24.0 ppb (23) 0.1 ppb (2) 35.2 μg/m3 (33) N/A 32.0
 
Oct. 14, 2020, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 24.0 ppb (23) 0.2 ppb (3) 29.4 μg/m3 (28) N/A 27.0
 
Oct. 14, 2020, 3 a.m. N/A N/A N/A 32.0 ppb (31) N/A 1.0 ppb (2) 12.0 ppb (12) 0.3 ppb (4) 45.9 μg/m3 (43) N/A 42.0
 
Oct. 14, 2020, 2 a.m. N/A N/A N/A 43.0 ppb (41) N/A 2.0 ppb (3) 6.0 ppb (6) 0.5 ppb (6) 50.6 μg/m3 (47) N/A 46.0
 
Oct. 14, 2020, 1 a.m. N/A N/A N/A 44.0 ppb (42) N/A 1.0 ppb (2) 8.0 ppb (8) 0.5 ppb (6) 88.5 μg/m3 (68) N/A 67.0
 
Oct. 14, 2020, midnight N/A N/A N/A 41.0 ppb (39) N/A 1.0 ppb (2) 13.0 ppb (13) 0.4 ppb (5) 100.1 μg/m3 (74) N/A 73.0
 
Oct. 13, 2020, 11 p.m. N/A N/A N/A 17.0 ppb (17) N/A 1.0 ppb (2) 37.0 ppb (35) 0.2 ppb (3) 56.2 μg/m3 (52) N/A 51.0
 
Oct. 13, 2020, 10 p.m. N/A N/A N/A 10.0 ppb (10) N/A 0.0 ppb (0) 48.0 ppb (45) 0.4 ppb (5) 37.0 μg/m3 (35) N/A 37.0
 
Oct. 13, 2020, 9 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 48.0 ppb (45) 0.2 ppb (3) 46.6 μg/m3 (44) N/A 42.0
 
Oct. 13, 2020, 8 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 46.0 ppb (43) 0.1 ppb (2) 31.6 μg/m3 (30) N/A 35.0
 
Oct. 13, 2020, 7 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 44.0 ppb (41) 0.1 ppb (2) 39.3 μg/m3 (37) N/A 36.0
 
Oct. 13, 2020, 6 p.m. N/A N/A N/A 7.0 ppb (7) N/A 0.0 ppb (0) 41.0 ppb (38) 0.1 ppb (2) 42.4 μg/m3 (40) N/A 39.0
 
Oct. 13, 2020, 5 p.m. N/A N/A N/A 15.0 ppb (15) N/A 0.0 ppb (0) 31.0 ppb (29) 0.2 ppb (3) 39.6 μg/m3 (37) N/A 36.0
 
Oct. 13, 2020, 4 p.m. N/A N/A N/A 18.0 ppb (17) N/A 0.0 ppb (0) 28.0 ppb (26) 0.2 ppb (3) 44.7 μg/m3 (42) N/A 41.0
 
Oct. 13, 2020, 3 p.m. N/A N/A N/A 22.0 ppb (21) N/A 0.0 ppb (0) 21.0 ppb (20) 0.2 ppb (3) 50.0 μg/m3 (47) N/A 45.0
 
Oct. 13, 2020, 2 p.m. N/A N/A N/A 25.0 ppb (24) N/A 2.0 ppb (3) 19.0 ppb (18) 0.2 ppb (3) 73.2 μg/m3 (61) N/A 59.0
 
Oct. 13, 2020, 1 p.m. N/A N/A N/A 28.0 ppb (27) N/A 1.0 ppb (2) 17.0 ppb (16) 0.2 ppb (3) 58.5 μg/m3 (53) N/A 52.0
 
Oct. 13, 2020, noon N/A N/A N/A 26.0 ppb (25) N/A 0.0 ppb (0) 15.0 ppb (14) 0.2 ppb (3) 30.5 μg/m3 (29) N/A 28.0
 
Oct. 13, 2020, 11 a.m. N/A N/A N/A 19.0 ppb (18) N/A 0.0 ppb (0) 21.0 ppb (20) 0.1 ppb (2) 53.8 μg/m3 (50) N/A 49.0
 
Oct. 13, 2020, 10 a.m. N/A N/A N/A 14.0 ppb (14) N/A 0.0 ppb (0) 26.0 ppb (25) 0.1 ppb (2) 25.3 μg/m3 (24) N/A 23.0
 
Oct. 13, 2020, 9 a.m. N/A N/A N/A 19.0 ppb (18) N/A 0.0 ppb (0) 21.0 ppb (20) 0.1 ppb (2) 21.6 μg/m3 (20) N/A 20.0
 
Oct. 13, 2020, 8 a.m. N/A N/A N/A 8.0 ppb (8) N/A 0.0 ppb (0) 36.0 ppb (34) 0.1 ppb (2) 43.7 μg/m3 (41) N/A 40.0
 
Oct. 13, 2020, 7 a.m. N/A N/A N/A 8.0 ppb (8) N/A 0.0 ppb (0) 36.0 ppb (34) 0.1 ppb (2) 7.8 μg/m3 (8) N/A 28.0
 
Oct. 13, 2020, 6 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 44.0 ppb (41) 0.1 ppb (2) 45.4 μg/m3 (43) N/A 41.0
 
Oct. 13, 2020, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 44.0 ppb (41) 0.1 ppb (2) 8.8 μg/m3 (9) N/A 34.0
 
Oct. 13, 2020, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 46.0 ppb (43) 0.1 ppb (2) 14.6 μg/m3 (14) N/A 35.0
 
Oct. 13, 2020, 3 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 47.0 ppb (44) 0.1 ppb (2) 15.4 μg/m3 (15) N/A 36.0
 
Oct. 13, 2020, 2 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 48.0 ppb (45) 0.1 ppb (2) 12.7 μg/m3 (12) N/A 37.0
 
Oct. 13, 2020, 1 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 47.0 ppb (44) 0.1 ppb (2) 16.3 μg/m3 (16) N/A 36.0
 
Oct. 13, 2020, midnight N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 44.0 ppb (41) 0.1 ppb (2) 11.7 μg/m3 (11) N/A 34.0
 
Oct. 12, 2020, 11 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 48.0 ppb (45) 0.1 ppb (2) 17.2 μg/m3 (16) N/A 37.0
 
Oct. 12, 2020, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 49.0 ppb (46) 0.1 ppb (2) 13.4 μg/m3 (13) N/A 38.0
 
Oct. 12, 2020, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 48.0 ppb (45) 0.1 ppb (2) 15.8 μg/m3 (15) N/A 37.0
 
Oct. 12, 2020, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 46.0 ppb (43) N/A N/A N/A 35.0
 
Oct. 12, 2020, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 46.0 ppb (43) 0.1 ppb (2) 131.0 μg/m3 (89) N/A 88.0
 
Oct. 12, 2020, 6 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.1 ppb (2) 63.6 μg/m3 (56) N/A 54.0
 
Oct. 12, 2020, 5 p.m. N/A N/A N/A 10.0 ppb (10) N/A 0.0 ppb (0) 41.0 ppb (38) 0.2 ppb (3) 35.7 μg/m3 (34) N/A 32.0
 
Oct. 12, 2020, 4 p.m. N/A N/A N/A 11.0 ppb (11) N/A 0.0 ppb (0) 39.0 ppb (37) 0.2 ppb (3) 26.9 μg/m3 (25) N/A 30.0
 
Oct. 12, 2020, 3 p.m. N/A N/A N/A 37.0 ppb (35) N/A 2.0 ppb (3) 14.0 ppb (13) 0.4 ppb (5) 77.7 μg/m3 (63) N/A 61.0
 
Oct. 12, 2020, 2 p.m. N/A N/A N/A 43.0 ppb (41) N/A 3.0 ppb (5) 5.0 ppb (5) 0.5 ppb (6) 104.7 μg/m3 (76) N/A 75.0
 
Oct. 12, 2020, 1 p.m. N/A N/A N/A 42.0 ppb (40) N/A 2.0 ppb (3) 2.0 ppb (2) 0.7 ppb (8) 73.0 μg/m3 (60) N/A 59.0
 
Oct. 12, 2020, noon N/A N/A N/A 39.0 ppb (37) N/A 1.0 ppb (2) 2.0 ppb (2) 0.4 ppb (5) 41.4 μg/m3 (39) N/A 38.0
 
Oct. 12, 2020, 11 a.m. N/A N/A N/A 30.0 ppb (29) N/A 0.0 ppb (0) 7.0 ppb (7) 0.3 ppb (4) 34.9 μg/m3 (33) N/A 32.0
 
Oct. 12, 2020, 10 a.m. N/A N/A N/A 19.0 ppb (18) N/A 0.0 ppb (0) 21.0 ppb (20) 0.2 ppb (3) 15.4 μg/m3 (15) N/A 18.0
 
Oct. 12, 2020, 9 a.m. N/A N/A N/A 15.0 ppb (15) N/A 0.0 ppb (0) 25.0 ppb (24) 0.2 ppb (3) 36.2 μg/m3 (34) N/A 33.0
 
Oct. 12, 2020, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 46.0 ppb (43) 0.1 ppb (2) 7.4 μg/m3 (7) N/A 35.0
 
Oct. 12, 2020, 7 a.m. N/A N/A N/A 10.0 ppb (10) N/A 0.0 ppb (0) 32.0 ppb (30) 0.2 ppb (3) 28.0 μg/m3 (26) N/A 25.0
 
Oct. 12, 2020, 6 a.m. N/A N/A N/A 8.0 ppb (8) N/A 0.0 ppb (0) 35.0 ppb (33) 0.1 ppb (2) 14.7 μg/m3 (14) N/A 27.0
 
Oct. 12, 2020, 5 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 38.0 ppb (36) 0.1 ppb (2) 25.1 μg/m3 (24) N/A 29.0
 
Oct. 12, 2020, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.1 ppb (2) 26.9 μg/m3 (25) N/A 33.0
 
Oct. 12, 2020, 3 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 47.0 ppb (44) 0.1 ppb (2) 17.6 μg/m3 (17) N/A 36.0
 
Oct. 12, 2020, 2 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 47.0 ppb (44) 0.1 ppb (2) 3.2 μg/m3 (3) N/A 36.0
 
Oct. 12, 2020, 1 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 46.0 ppb (43) 0.1 ppb (2) 17.2 μg/m3 (16) N/A 35.0
 
Oct. 12, 2020, midnight N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 49.0 ppb (46) 0.1 ppb (2) 13.3 μg/m3 (13) N/A 38.0
 
Oct. 11, 2020, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 50.0 ppb (47) 0.1 ppb (2) N/A N/A 38.0
 
Oct. 11, 2020, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 51.0 ppb (48) 0.1 ppb (2) N/A N/A 39.0
 
Oct. 11, 2020, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 50.0 ppb (47) 0.1 ppb (2) 368.2 μg/m3 (220) N/A 219.0
 
Oct. 11, 2020, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (40) 0.1 ppb (2) N/A N/A 33.0
 
Oct. 11, 2020, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 49.0 ppb (46) 0.2 ppb (3) 301.0 μg/m3 (174) N/A 173.0
 
Oct. 11, 2020, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 51.0 ppb (48) 0.2 ppb (3) 189.1 μg/m3 (118) N/A 117.0
 
Oct. 11, 2020, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 50.0 ppb (47) 0.1 ppb (2) 180.3 μg/m3 (114) N/A 113.0
 
Oct. 11, 2020, 4 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 40.0 ppb (38) 0.1 ppb (2) 113.7 μg/m3 (81) N/A 79.0
 
Oct. 11, 2020, 3 p.m. N/A N/A N/A 13.0 ppb (13) N/A 1.0 ppb (2) 25.0 ppb (24) 0.1 ppb (2) 20.1 μg/m3 (19) N/A 19.0
 
Oct. 11, 2020, 2 p.m. N/A N/A N/A 18.0 ppb (17) N/A 3.0 ppb (5) 16.0 ppb (15) 0.2 ppb (3) 18.4 μg/m3 (18) N/A 17.0
 
Oct. 11, 2020, 1 p.m. N/A N/A N/A 17.0 ppb (17) N/A 1.0 ppb (2) 14.0 ppb (13) 0.1 ppb (2) 15.7 μg/m3 (15) N/A 16.0
 
Oct. 11, 2020, noon N/A N/A N/A 15.0 ppb (15) N/A 1.0 ppb (2) 16.0 ppb (15) 0.1 ppb (2) 16.2 μg/m3 (15) N/A 15.0
 
Oct. 11, 2020, 11 a.m. N/A N/A N/A 11.0 ppb (11) N/A 1.0 ppb (2) 21.0 ppb (20) 0.1 ppb (2) 14.4 μg/m3 (14) N/A 16.0
 
Oct. 11, 2020, 10 a.m. N/A N/A N/A 22.0 ppb (21) N/A 1.0 ppb (2) 13.0 ppb (13) 0.2 ppb (3) 27.6 μg/m3 (26) N/A 25.0
 
Oct. 11, 2020, 9 a.m. N/A N/A N/A 32.0 ppb (31) N/A 1.0 ppb (2) 4.0 ppb (4) 0.4 ppb (5) 25.4 μg/m3 (24) N/A 30.0
 
Oct. 11, 2020, 8 a.m. N/A N/A N/A 31.0 ppb (30) N/A 0.0 ppb (0) 7.0 ppb (7) 0.4 ppb (5) 30.0 μg/m3 (28) N/A 29.0
 
Oct. 11, 2020, 7 a.m. N/A N/A N/A 28.0 ppb (27) N/A 1.0 ppb (2) 11.0 ppb (11) 0.4 ppb (5) 36.2 μg/m3 (34) N/A 33.0
 
Oct. 11, 2020, 6 a.m. N/A N/A N/A 31.0 ppb (30) N/A 0.0 ppb (0) 10.0 ppb (10) 0.5 ppb (6) 44.0 μg/m3 (41) N/A 40.0
 
Oct. 11, 2020, 5 a.m. N/A N/A N/A 33.0 ppb (32) N/A 1.0 ppb (2) 15.0 ppb (14) 0.6 ppb (7) 62.2 μg/m3 (55) N/A 54.0
 
Oct. 11, 2020, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 19.0 ppb (18) 0.6 ppb (7) 47.0 μg/m3 (44) N/A 43.0
 
Oct. 11, 2020, 3 a.m. N/A N/A N/A 56.0 ppb (54) N/A 1.0 ppb (2) 3.0 ppb (3) 0.8 ppb (10) 73.3 μg/m3 (61) N/A 59.0
 
Oct. 11, 2020, 2 a.m. N/A N/A N/A 41.0 ppb (39) N/A 1.0 ppb (2) 15.0 ppb (14) 0.7 ppb (8) 97.7 μg/m3 (73) N/A 71.0
 
Oct. 11, 2020, 1 a.m. N/A N/A N/A 22.0 ppb (21) N/A 0.0 ppb (0) 39.0 ppb (37) 0.5 ppb (6) 69.0 μg/m3 (58) N/A 57.0
 
Oct. 11, 2020, midnight N/A N/A N/A 12.0 ppb (12) N/A 0.0 ppb (0) 60.0 ppb (68) 0.3 ppb (4) 85.5 μg/m3 (67) N/A 65.0
 
Oct. 10, 2020, 11 p.m. N/A N/A N/A 8.0 ppb (8) N/A 0.0 ppb (0) 69.0 ppb (97) 0.2 ppb (3) 69.1 μg/m3 (58) N/A 57.0
 
Oct. 10, 2020, 10 p.m. N/A N/A N/A 8.0 ppb (8) N/A 0.0 ppb (0) 67.0 ppb (91) 0.2 ppb (3) 99.7 μg/m3 (74) N/A 72.0
 
Oct. 10, 2020, 9 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 66.0 ppb (87) 0.2 ppb (3) 48.0 μg/m3 (45) N/A 51.0
 
Oct. 10, 2020, 8 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 61.0 ppb (71) 0.2 ppb (3) 46.2 μg/m3 (43) N/A 47.0
 
Oct. 10, 2020, 7 p.m. N/A N/A N/A 8.0 ppb (8) N/A 0.0 ppb (0) 57.0 ppb (58) 0.2 ppb (3) 50.6 μg/m3 (47) N/A 46.0
 
Oct. 10, 2020, 6 p.m. N/A N/A N/A 10.0 ppb (10) N/A 0.0 ppb (0) 54.0 ppb (50) 0.5 ppb (6) 53.4 μg/m3 (50) N/A 49.0
 
Oct. 10, 2020, 5 p.m. N/A N/A N/A 14.0 ppb (14) N/A 1.0 ppb (2) 46.0 ppb (43) 0.8 ppb (10) 58.5 μg/m3 (53) N/A 52.0
 
Oct. 10, 2020, 4 p.m. N/A N/A N/A 28.0 ppb (27) N/A 3.0 ppb (5) 22.0 ppb (21) 0.4 ppb (5) 66.4 μg/m3 (57) N/A 56.0
 
Oct. 10, 2020, 3 p.m. N/A N/A N/A 34.0 ppb (33) N/A 2.0 ppb (3) 8.0 ppb (8) 0.6 ppb (7) 109.1 μg/m3 (78) N/A 77.0
 
Oct. 10, 2020, 2 p.m. N/A N/A N/A 32.0 ppb (31) N/A 1.0 ppb (2) 4.0 ppb (4) 0.9 ppb (11) 92.6 μg/m3 (70) N/A 69.0
 
Oct. 10, 2020, 1 p.m. N/A N/A N/A 30.0 ppb (29) N/A 1.0 ppb (2) 1.0 ppb (1) 0.8 ppb (10) 115.0 μg/m3 (81) N/A 80.0
 
Oct. 10, 2020, noon N/A N/A N/A 28.0 ppb (27) N/A 1.0 ppb (2) 1.0 ppb (1) 0.6 ppb (7) 74.7 μg/m3 (61) N/A 60.0
 
Oct. 10, 2020, 11 a.m. N/A N/A N/A 29.0 ppb (28) N/A 1.0 ppb (2) 1.0 ppb (1) 0.4 ppb (5) 61.8 μg/m3 (55) N/A 53.0
 
Oct. 10, 2020, 10 a.m. N/A N/A N/A 28.0 ppb (27) N/A 0.0 ppb (0) 1.0 ppb (1) 0.4 ppb (5) 45.0 μg/m3 (42) N/A 41.0
 
Oct. 10, 2020, 9 a.m. N/A N/A N/A 32.0 ppb (31) N/A 0.0 ppb (0) 1.0 ppb (1) 0.4 ppb (5) 62.0 μg/m3 (55) N/A 54.0
 
Oct. 10, 2020, 8 a.m. N/A N/A N/A 30.0 ppb (29) N/A 0.0 ppb (0) 5.0 ppb (5) 0.4 ppb (5) 58.4 μg/m3 (53) N/A 52.0
 
Oct. 10, 2020, 7 a.m. N/A N/A N/A 26.0 ppb (25) N/A 0.0 ppb (0) 6.0 ppb (6) 0.4 ppb (5) 43.6 μg/m3 (41) N/A 40.0
 
Oct. 10, 2020, 6 a.m. N/A N/A N/A 21.0 ppb (20) N/A 0.0 ppb (0) 14.0 ppb (13) 0.3 ppb (4) 63.6 μg/m3 (56) N/A 54.0
 
Oct. 10, 2020, 5 a.m. N/A N/A N/A 25.0 ppb (24) N/A 0.0 ppb (0) 11.0 ppb (11) 0.4 ppb (5) 76.1 μg/m3 (62) N/A 61.0
 
Oct. 10, 2020, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.2 ppb (3) 80.7 μg/m3 (64) N/A 63.0
 
Oct. 10, 2020, 3 a.m. N/A N/A N/A 10.0 ppb (10) N/A 0.0 ppb (0) 34.0 ppb (32) 0.2 ppb (3) 45.1 μg/m3 (42) N/A 41.0
 
Oct. 10, 2020, 2 a.m. N/A N/A N/A 12.0 ppb (12) N/A 0.0 ppb (0) 30.0 ppb (28) 0.2 ppb (3) 76.0 μg/m3 (62) N/A 60.0
 
Oct. 10, 2020, 1 a.m. N/A N/A N/A 14.0 ppb (14) N/A 0.0 ppb (0) 28.0 ppb (26) 0.2 ppb (3) 48.2 μg/m3 (45) N/A 44.0
 
Oct. 10, 2020, midnight N/A N/A N/A 21.0 ppb (20) N/A 0.0 ppb (0) 29.0 ppb (27) 0.3 ppb (4) 84.1 μg/m3 (66) N/A 65.0
 
Oct. 9, 2020, 11 p.m. N/A N/A N/A 10.0 ppb (10) N/A 0.0 ppb (0) 40.0 ppb (38) 0.2 ppb (3) 67.6 μg/m3 (58) N/A 56.0
 
Oct. 9, 2020, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 45.0 ppb (42) 0.1 ppb (2) 42.3 μg/m3 (40) N/A 38.0
 
Oct. 9, 2020, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 48.0 ppb (45) 0.1 ppb (2) 22.3 μg/m3 (21) N/A 37.0
 
Oct. 9, 2020, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 48.0 ppb (45) 0.1 ppb (2) 28.9 μg/m3 (27) N/A 37.0
 
Oct. 9, 2020, 7 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 49.0 ppb (46) 0.1 ppb (2) 23.4 μg/m3 (22) N/A 38.0
 
Oct. 9, 2020, 6 p.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 42.0 ppb (39) 0.1 ppb (2) 28.5 μg/m3 (27) N/A 32.0
 
Oct. 9, 2020, 5 p.m. N/A N/A N/A 27.0 ppb (26) N/A 2.0 ppb (3) 28.0 ppb (26) 0.3 ppb (4) 76.3 μg/m3 (62) N/A 61.0
 
Oct. 9, 2020, 4 p.m. N/A N/A N/A 40.0 ppb (38) N/A 2.0 ppb (3) 12.0 ppb (12) 0.5 ppb (6) 111.0 μg/m3 (79) N/A 78.0
 
Oct. 9, 2020, 3 p.m. N/A N/A N/A 41.0 ppb (39) N/A 1.0 ppb (2) 8.0 ppb (8) 0.5 ppb (6) 146.1 μg/m3 (97) N/A 96.0
 
Oct. 9, 2020, 2 p.m. N/A N/A N/A 46.0 ppb (44) N/A 3.0 ppb (5) 3.0 ppb (3) 0.8 ppb (10) 216.7 μg/m3 (132) N/A 131.0
 
Oct. 9, 2020, 1 p.m. N/A N/A N/A 40.0 ppb (38) N/A 1.0 ppb (2) 2.0 ppb (2) 0.6 ppb (7) 136.6 μg/m3 (92) N/A 91.0
 
Oct. 9, 2020, noon N/A N/A N/A 40.0 ppb (38) N/A 0.0 ppb (0) 1.0 ppb (1) 0.4 ppb (5) 85.9 μg/m3 (67) N/A 65.0
 
Oct. 9, 2020, 11 a.m. N/A N/A N/A 38.0 ppb (36) N/A 0.0 ppb (0) 2.0 ppb (2) 0.3 ppb (4) 51.6 μg/m3 (48) N/A 47.0
 
Oct. 9, 2020, 10 a.m. N/A N/A N/A 38.0 ppb (36) N/A 1.0 ppb (2) 4.0 ppb (4) 0.3 ppb (4) 45.5 μg/m3 (43) N/A 41.0
 
Oct. 9, 2020, 9 a.m. N/A N/A N/A 32.0 ppb (31) N/A 0.0 ppb (0) 9.0 ppb (9) 0.4 ppb (5) 47.1 μg/m3 (44) N/A 43.0
 
Oct. 9, 2020, 8 a.m. N/A N/A N/A 35.0 ppb (34) N/A 0.0 ppb (0) 8.0 ppb (8) 0.4 ppb (5) 51.4 μg/m3 (48) N/A 47.0
 
Oct. 9, 2020, 7 a.m. N/A N/A N/A 37.0 ppb (35) N/A 0.0 ppb (0) 11.0 ppb (11) 0.5 ppb (6) 61.3 μg/m3 (55) N/A 53.0
 
Oct. 9, 2020, 6 a.m. N/A N/A N/A 50.0 ppb (48) N/A 1.0 ppb (2) 2.0 ppb (2) 0.7 ppb (8) 84.8 μg/m3 (66) N/A 65.0
 
Oct. 9, 2020, 5 a.m. N/A N/A N/A 50.0 ppb (48) N/A 1.0 ppb (2) 3.0 ppb (3) 0.6 ppb (7) 80.8 μg/m3 (64) N/A 63.0
 
Oct. 9, 2020, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 10.0 ppb (10) 0.5 ppb (6) 60.0 μg/m3 (54) N/A 52.0
 
Oct. 9, 2020, 3 a.m. N/A N/A N/A 51.0 ppb (49) N/A 0.0 ppb (0) 5.0 ppb (5) 0.8 ppb (10) 77.9 μg/m3 (63) N/A 61.0
 
Oct. 9, 2020, 2 a.m. N/A N/A N/A 55.0 ppb (53) N/A 1.0 ppb (2) 1.0 ppb (1) 1.0 ppb (12) 78.4 μg/m3 (63) N/A 62.0
 
Oct. 9, 2020, 1 a.m. N/A N/A N/A 38.0 ppb (36) N/A 0.0 ppb (0) 17.0 ppb (16) 0.7 ppb (8) 97.3 μg/m3 (72) N/A 71.0
 
Oct. 9, 2020, midnight N/A N/A N/A 19.0 ppb (18) N/A 0.0 ppb (0) 39.0 ppb (37) 0.4 ppb (5) 97.6 μg/m3 (73) N/A 71.0
 
Oct. 8, 2020, 11 p.m. N/A N/A N/A 8.0 ppb (8) N/A 0.0 ppb (0) 59.0 ppb (65) 0.2 ppb (3) 77.9 μg/m3 (63) N/A 61.0
 
Oct. 8, 2020, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 65.0 ppb (84) 0.2 ppb (3) 55.4 μg/m3 (52) N/A 50.0
 
Oct. 8, 2020, 9 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 67.0 ppb (91) 0.2 ppb (3) 57.5 μg/m3 (53) N/A 52.0
 
Oct. 8, 2020, 8 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 70.0 ppb (100) 0.2 ppb (3) 51.1 μg/m3 (48) N/A 54.0
 
Oct. 8, 2020, 7 p.m. N/A N/A N/A 17.0 ppb (17) N/A 1.0 ppb (2) 56.0 ppb (55) 0.3 ppb (4) 80.6 μg/m3 (64) N/A 63.0
 
Oct. 8, 2020, 6 p.m. N/A N/A N/A 35.0 ppb (34) N/A 1.0 ppb (2) 33.0 ppb (31) 0.4 ppb (5) 80.6 μg/m3 (64) N/A 63.0
 
Oct. 8, 2020, 5 p.m. N/A N/A N/A 40.0 ppb (38) N/A 2.0 ppb (3) 23.0 ppb (22) 0.5 ppb (6) 101.5 μg/m3 (75) N/A 73.0
 
Oct. 8, 2020, 4 p.m. N/A N/A N/A 27.0 ppb (26) N/A 1.0 ppb (2) 28.0 ppb (26) 0.4 ppb (5) 98.5 μg/m3 (73) N/A 72.0
 
Oct. 8, 2020, 3 p.m. N/A N/A N/A 44.0 ppb (42) N/A 3.0 ppb (5) 13.0 ppb (13) 0.7 ppb (8) 155.3 μg/m3 (102) N/A 100.0
 
Oct. 8, 2020, 2 p.m. N/A N/A N/A 50.0 ppb (48) N/A 3.0 ppb (5) 2.0 ppb (2) 1.1 ppb (13) 249.6 μg/m3 (148) N/A 147.0
 
Oct. 8, 2020, 1 p.m. N/A N/A N/A 43.0 ppb (41) N/A 1.0 ppb (2) 2.0 ppb (2) 0.8 ppb (10) 176.2 μg/m3 (112) N/A 111.0
 
Oct. 8, 2020, noon N/A N/A N/A 38.0 ppb (36) N/A 1.0 ppb (2) 1.0 ppb (1) 0.6 ppb (7) 104.3 μg/m3 (76) N/A 75.0
 
Oct. 8, 2020, 11 a.m. N/A N/A N/A 34.0 ppb (33) N/A 0.0 ppb (0) 2.0 ppb (2) 0.5 ppb (6) 73.4 μg/m3 (61) N/A 59.0
 
Oct. 8, 2020, 10 a.m. N/A N/A N/A 28.0 ppb (27) N/A 0.0 ppb (0) 9.0 ppb (9) 0.4 ppb (5) 63.0 μg/m3 (55) N/A 54.0
 
Oct. 8, 2020, 9 a.m. N/A N/A N/A 24.0 ppb (23) N/A 0.0 ppb (0) 17.0 ppb (16) 0.4 ppb (5) 60.1 μg/m3 (54) N/A 53.0
 
Oct. 8, 2020, 8 a.m. N/A N/A N/A 34.0 ppb (33) N/A 0.0 ppb (0) 10.0 ppb (10) 0.5 ppb (6) 70.2 μg/m3 (59) N/A 58.0