AQSQID: 060659001

Site Name: Lake Elsinore - W. Flint Street

Location: Lake Elsinore, CA

Reporting: True, Located: True

Current AQI: 33.0

Lake Elsinore CA, US: 33.6747, -117.3358

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 21, 2019, 11 p.m. -0.5 ppb (0) -0.9 ppb (0) N/A 0.0 ppb (0) N/A N/A 44.0 ppb (34) 0.18 ppb (2) N/A -2.8 μg/m3 (0) 34.0
 
May 21, 2019, 10 p.m. -0.4 ppb (0) -0.9 ppb (0) N/A 0.0 ppb (0) N/A N/A 43.0 ppb (33) 0.18 ppb (2) N/A -3.7 μg/m3 (0) 33.0
 
May 21, 2019, 9 p.m. -0.4 ppb (0) -0.8 ppb (0) N/A 0.0 ppb (0) N/A N/A 43.0 ppb (33) 0.18 ppb (2) N/A -3.0 μg/m3 (0) 33.0
 
May 21, 2019, 8 p.m. 0.4 ppb (0) -0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) 0.19 ppb (2) N/A -1.8 μg/m3 (0) 36.0
 
May 21, 2019, 7 p.m. -0.3 ppb (0) -0.8 ppb (0) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) 0.18 ppb (2) N/A 16.6 μg/m3 (60) 60.0
 
May 21, 2019, 6 p.m. 0.3 ppb (0) -0.6 ppb (0) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) 0.17 ppb (2) 7.0 μg/m3 (6) 3.6 μg/m3 (15) 37.0
 
May 21, 2019, 5 p.m. -0.3 ppb (0) -0.8 ppb (0) N/A 0.0 ppb (0) N/A N/A 46.0 ppb (35) 0.16 ppb (2) 5.0 μg/m3 (5) 5.0 μg/m3 (21) 35.0
 
May 21, 2019, 4 p.m. -0.4 ppb (0) -0.8 ppb (0) N/A 0.0 ppb (0) N/A N/A 44.0 ppb (34) 0.16 ppb (2) 18.0 μg/m3 (16) 3.3 μg/m3 (14) 34.0
 
May 21, 2019, 3 p.m. 1.3 ppb (1) -0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (32) 0.19 ppb (2) 11.0 μg/m3 (10) -2.0 μg/m3 (0) 32.0
 
May 21, 2019, 2 p.m. 11.5 ppb (11) 2.9 ppb (3) N/A 9.0 ppb (8) N/A N/A 26.0 ppb (20) 0.3 ppb (3) 6.0 μg/m3 (5) -3.7 μg/m3 (0) 20.0
 
May 21, 2019, 1 p.m. 17.3 ppb (16) 2.3 ppb (2) N/A 15.0 ppb (14) N/A N/A 13.0 ppb (10) 0.36 ppb (4) 8.0 μg/m3 (7) -3.2 μg/m3 (0) 16.0
 
May 21, 2019, noon 9.1 ppb (8) -0.7 ppb (0) N/A 10.0 ppb (9) N/A N/A 22.0 ppb (17) 0.25 ppb (3) 6.0 μg/m3 (5) -1.5 μg/m3 (0) 17.0
 
May 21, 2019, 11 a.m. 1.4 ppb (1) -0.9 ppb (0) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (27) 0.2 ppb (2) 4.0 μg/m3 (4) -0.9 μg/m3 (0) 27.0
 
May 21, 2019, 10 a.m. -0.3 ppb (0) -1.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (32) 0.19 ppb (2) 4.0 μg/m3 (4) -2.9 μg/m3 (0) 32.0
 
May 21, 2019, 9 a.m. -0.3 ppb (0) -1.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (31) 0.19 ppb (2) 5.0 μg/m3 (5) -3.9 μg/m3 (0) 31.0
 
May 21, 2019, 8 a.m. -0.2 ppb (0) -1.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 39.0 ppb (30) 0.19 ppb (2) 5.0 μg/m3 (5) 0.1 μg/m3 (0) 30.0
 
May 21, 2019, 7 a.m. 1.8 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (27) 0.2 ppb (2) 6.0 μg/m3 (5) 2.6 μg/m3 (11) 27.0
 
May 21, 2019, 6 a.m. 4.0 ppb (4) -0.9 ppb (0) N/A 5.0 ppb (5) N/A N/A 31.0 ppb (24) 0.22 ppb (2) 5.0 μg/m3 (5) -4.8 μg/m3 (0) 24.0
 
May 21, 2019, 5 a.m. 1.5 ppb (1) -0.9 ppb (0) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (28) 0.19 ppb (2) 6.0 μg/m3 (5) -4.1 μg/m3 (0) 28.0
 
May 21, 2019, 4 a.m. 0.7 ppb (1) -1.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (32) 0.18 ppb (2) 5.0 μg/m3 (5) -0.1 μg/m3 (0) 32.0
 
May 21, 2019, 3 a.m. 0.1 ppb (0) -0.9 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) 0.19 ppb (2) 7.0 μg/m3 (6) -2.5 μg/m3 (0) 35.0
 
May 21, 2019, 2 a.m. 0.0 ppb (0) -0.9 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) 0.18 ppb (2) 5.0 μg/m3 (5) -3.5 μg/m3 (0) 35.0
 
May 21, 2019, 1 a.m. -0.1 ppb (0) -0.9 ppb (0) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) 0.18 ppb (2) 4.0 μg/m3 (4) -2.9 μg/m3 (0) 36.0
 
May 21, 2019, midnight -0.2 ppb (0) -0.9 ppb (0) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (38) 0.19 ppb (2) 5.0 μg/m3 (5) -4.4 μg/m3 (0) 38.0
 
May 20, 2019, 11 p.m. -0.1 ppb (0) -0.8 ppb (0) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (38) 0.19 ppb (2) 7.0 μg/m3 (6) N/A 38.0
 
May 20, 2019, 10 p.m. -0.1 ppb (0) -0.8 ppb (0) N/A 1.0 ppb (1) N/A N/A 51.0 ppb (39) 0.2 ppb (2) 8.0 μg/m3 (7) -3.2 μg/m3 (0) 39.0
 
May 20, 2019, 9 p.m. 0.2 ppb (0) -0.8 ppb (0) N/A 1.0 ppb (1) N/A N/A 53.0 ppb (41) 0.2 ppb (2) 7.0 μg/m3 (6) 0.0 μg/m3 (0) 41.0
 
May 20, 2019, 8 p.m. 0.1 ppb (0) -0.8 ppb (0) N/A 1.0 ppb (1) N/A N/A 53.0 ppb (41) 0.2 ppb (2) 5.0 μg/m3 (5) -0.4 μg/m3 (0) 41.0
 
May 20, 2019, 7 p.m. -0.1 ppb (0) -0.8 ppb (0) N/A 1.0 ppb (1) N/A N/A 51.0 ppb (39) 0.19 ppb (2) 3.0 μg/m3 (3) 0.1 μg/m3 (0) 39.0
 
May 20, 2019, 6 p.m. 0.0 ppb (0) -0.8 ppb (0) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (38) 0.19 ppb (2) 4.0 μg/m3 (4) 1.8 μg/m3 (8) 38.0
 
May 20, 2019, 5 p.m. 0.4 ppb (0) -0.7 ppb (0) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) 0.18 ppb (2) 4.0 μg/m3 (4) 0.8 μg/m3 (3) 36.0
 
May 20, 2019, 4 p.m. 0.9 ppb (1) -0.6 ppb (0) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) 0.19 ppb (2) 2.0 μg/m3 (2) -0.1 μg/m3 (0) 35.0
 
May 20, 2019, 3 p.m. 1.5 ppb (1) -0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (33) 0.2 ppb (2) 5.0 μg/m3 (5) -1.8 μg/m3 (0) 33.0
 
May 20, 2019, 2 p.m. 25.4 ppb (24) 15.0 ppb (14) N/A 7.0 ppb (6) N/A N/A 34.0 ppb (26) 0.25 ppb (3) 4.0 μg/m3 (4) 1.3 μg/m3 (5) 26.0
 
May 20, 2019, 1 p.m. 7.2 ppb (7) -0.3 ppb (0) N/A 8.0 ppb (7) N/A N/A 28.0 ppb (22) 0.27 ppb (3) 8.0 μg/m3 (7) 2.1 μg/m3 (9) 22.0
 
May 20, 2019, noon 2.9 ppb (3) -0.9 ppb (0) N/A 4.0 ppb (4) N/A N/A 35.0 ppb (27) 0.22 ppb (2) 4.0 μg/m3 (4) 0.4 μg/m3 (2) 27.0
 
May 20, 2019, 11 a.m. -0.3 ppb (0) -1.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) 0.2 ppb (2) 4.0 μg/m3 (4) -2.7 μg/m3 (0) 35.0
 
May 20, 2019, 10 a.m. -0.4 ppb (0) -1.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) 0.2 ppb (2) 2.0 μg/m3 (2) N/A 35.0
 
May 20, 2019, 9 a.m. -0.8 ppb (0) -1.1 ppb (0) N/A 0.0 ppb (0) N/A N/A 48.0 ppb (37) 0.19 ppb (2) 4.0 μg/m3 (4) -2.2 μg/m3 (0) 37.0
 
May 20, 2019, 8 a.m. -0.9 ppb (0) -1.1 ppb (0) N/A 0.0 ppb (0) N/A N/A 47.0 ppb (36) 0.19 ppb (2) 2.0 μg/m3 (2) -0.4 μg/m3 (0) 36.0
 
May 20, 2019, 7 a.m. -0.9 ppb (0) -1.1 ppb (0) N/A 0.0 ppb (0) N/A N/A 49.0 ppb (38) 0.19 ppb (2) 4.0 μg/m3 (4) -0.6 μg/m3 (0) 38.0
 
May 20, 2019, 6 a.m. -0.9 ppb (0) -1.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 46.0 ppb (35) 0.18 ppb (2) 3.0 μg/m3 (3) 0.8 μg/m3 (3) 35.0
 
May 20, 2019, 5 a.m. -0.8 ppb (0) -1.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 42.0 ppb (32) 0.19 ppb (2) 5.0 μg/m3 (5) 0.5 μg/m3 (2) 32.0
 
May 20, 2019, 4 a.m. -0.5 ppb (0) -0.9 ppb (0) N/A 0.0 ppb (0) N/A N/A 43.0 ppb (33) 0.19 ppb (2) 9.0 μg/m3 (8) -2.5 μg/m3 (0) 33.0
 
May 20, 2019, 3 a.m. -0.4 ppb (0) -1.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) 0.19 ppb (2) 7.0 μg/m3 (6) 0.0 μg/m3 (0) 35.0
 
May 20, 2019, 2 a.m. 0.4 ppb (0) -0.8 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) 0.19 ppb (2) 6.0 μg/m3 (5) 2.1 μg/m3 (9) 35.0
 
May 20, 2019, 1 a.m. -0.1 ppb (0) -0.9 ppb (0) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) 0.17 ppb (2) 3.0 μg/m3 (3) -1.1 μg/m3 (0) 37.0
 
May 20, 2019, midnight -0.2 ppb (0) -0.8 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) 0.17 ppb (2) 3.0 μg/m3 (3) 0.2 μg/m3 (1) 35.0
 
May 19, 2019, 11 p.m. -0.1 ppb (0) -0.7 ppb (0) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (34) 0.16 ppb (2) 2.0 μg/m3 (2) 1.9 μg/m3 (8) 34.0
 
May 19, 2019, 10 p.m. -0.3 ppb (0) -0.7 ppb (0) N/A 0.0 ppb (0) N/A N/A 41.0 ppb (32) 0.16 ppb (2) 1.0 μg/m3 (1) -0.4 μg/m3 (0) 32.0
 
May 19, 2019, 9 p.m. 0.1 ppb (0) -0.6 ppb (0) N/A 1.0 ppb (1) N/A N/A 36.0 ppb (28) 0.17 ppb (2) 3.0 μg/m3 (3) -1.1 μg/m3 (0) 28.0
 
May 19, 2019, 8 p.m. -0.2 ppb (0) -0.9 ppb (0) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (28) 0.17 ppb (2) 4.0 μg/m3 (4) 0.9 μg/m3 (4) 28.0
 
May 19, 2019, 7 p.m. 0.1 ppb (0) -0.8 ppb (0) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (29) 0.17 ppb (2) 2.0 μg/m3 (2) -0.1 μg/m3 (0) 29.0
 
May 19, 2019, 6 p.m. -0.1 ppb (0) -0.8 ppb (0) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (31) 0.18 ppb (2) 3.0 μg/m3 (3) 1.1 μg/m3 (5) 31.0
 
May 19, 2019, 5 p.m. -0.1 ppb (0) -0.8 ppb (0) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (31) 0.18 ppb (2) 5.0 μg/m3 (5) -0.6 μg/m3 (0) 31.0
 
May 19, 2019, 4 p.m. 0.4 ppb (0) -0.8 ppb (0) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (33) 0.19 ppb (2) 5.0 μg/m3 (5) -2.4 μg/m3 (0) 33.0
 
May 19, 2019, 3 p.m. -0.6 ppb (0) -0.9 ppb (0) N/A 0.0 ppb (0) N/A N/A 46.0 ppb (35) 0.18 ppb (2) 5.0 μg/m3 (5) 0.1 μg/m3 (0) 35.0
 
May 19, 2019, 2 p.m. -0.5 ppb (0) -1.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 46.0 ppb (35) 0.18 ppb (2) 4.0 μg/m3 (4) 1.6 μg/m3 (7) 35.0
 
May 19, 2019, 1 p.m. 0.9 ppb (1) -0.9 ppb (0) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (26) 0.2 ppb (2) 6.0 μg/m3 (5) 0.6 μg/m3 (2) 26.0
 
May 19, 2019, noon -0.2 ppb (0) -1.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (28) 0.18 ppb (2) 5.0 μg/m3 (5) -2.0 μg/m3 (0) 28.0
 
May 19, 2019, 11 a.m. -0.4 ppb (0) -1.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 39.0 ppb (30) 0.18 ppb (2) 1.0 μg/m3 (1) -0.6 μg/m3 (0) 30.0
 
May 19, 2019, 10 a.m. -0.2 ppb (0) -1.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (29) 0.18 ppb (2) 3.0 μg/m3 (3) -0.5 μg/m3 (0) 29.0
 
May 19, 2019, 9 a.m. -0.6 ppb (0) -1.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 41.0 ppb (32) 0.18 ppb (2) 10.0 μg/m3 (9) 4.3 μg/m3 (18) 32.0
 
May 19, 2019, 8 a.m. -0.7 ppb (0) -1.1 ppb (0) N/A 0.0 ppb (0) N/A N/A 43.0 ppb (33) 0.18 ppb (2) 8.0 μg/m3 (7) 7.2 μg/m3 (30) 33.0
 
May 19, 2019, 7 a.m. -0.6 ppb (0) -1.1 ppb (0) N/A 0.0 ppb (0) N/A N/A 42.0 ppb (32) 0.17 ppb (2) 5.0 μg/m3 (5) 2.9 μg/m3 (12) 32.0
 
May 19, 2019, 6 a.m. -0.3 ppb (0) -1.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (32) 0.18 ppb (2) 12.0 μg/m3 (11) 1.6 μg/m3 (7) 32.0
 
May 19, 2019, 5 a.m. 0.0 ppb (0) -1.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) 0.18 ppb (2) 8.0 μg/m3 (7) 2.6 μg/m3 (11) 36.0
 
May 19, 2019, 4 a.m. 0.6 ppb (1) -1.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (32) 0.19 ppb (2) 7.0 μg/m3 (6) -0.8 μg/m3 (0) 32.0
 
May 19, 2019, 3 a.m. 0.7 ppb (1) -1.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (32) 0.2 ppb (2) 11.0 μg/m3 (10) 1.0 μg/m3 (4) 32.0
 
May 19, 2019, 2 a.m. 0.2 ppb (0) -1.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) 0.19 ppb (2) 7.0 μg/m3 (6) 0.9 μg/m3 (4) 35.0
 
May 19, 2019, 1 a.m. 0.2 ppb (0) -1.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 51.0 ppb (39) 0.19 ppb (2) 8.0 μg/m3 (7) -0.7 μg/m3 (0) 39.0
 
May 19, 2019, midnight 0.5 ppb (0) -0.9 ppb (0) N/A 1.0 ppb (1) N/A N/A 53.0 ppb (41) 0.2 ppb (2) 8.0 μg/m3 (7) -0.4 μg/m3 (0) 41.0
 
May 18, 2019, 11 p.m. 0.5 ppb (0) -0.9 ppb (0) N/A 1.0 ppb (1) N/A N/A 55.0 ppb (42) 0.2 ppb (2) 9.0 μg/m3 (8) -1.2 μg/m3 (0) 42.0
 
May 18, 2019, 10 p.m. 0.5 ppb (0) -0.9 ppb (0) N/A 1.0 ppb (1) N/A N/A 56.0 ppb (43) 0.21 ppb (2) 8.0 μg/m3 (7) 2.3 μg/m3 (10) 43.0
 
May 18, 2019, 9 p.m. 0.5 ppb (0) -0.9 ppb (0) N/A 1.0 ppb (1) N/A N/A 55.0 ppb (42) 0.22 ppb (2) 9.0 μg/m3 (8) 2.1 μg/m3 (9) 42.0
 
May 18, 2019, 8 p.m. 0.2 ppb (0) -0.9 ppb (0) N/A 1.0 ppb (1) N/A N/A 55.0 ppb (42) 0.2 ppb (2) 10.0 μg/m3 (9) 2.2 μg/m3 (9) 42.0
 
May 18, 2019, 7 p.m. 0.3 ppb (0) -0.9 ppb (0) N/A 1.0 ppb (1) N/A N/A 55.0 ppb (42) 0.2 ppb (2) 8.0 μg/m3 (7) -0.2 μg/m3 (0) 42.0
 
May 18, 2019, 6 p.m. 0.5 ppb (0) -0.9 ppb (0) N/A 1.0 ppb (1) N/A N/A 54.0 ppb (42) 0.21 ppb (2) 8.0 μg/m3 (7) 1.1 μg/m3 (5) 42.0
 
May 18, 2019, 5 p.m. 1.2 ppb (1) -0.7 ppb (0) N/A 2.0 ppb (2) N/A N/A 53.0 ppb (41) 0.22 ppb (2) 9.0 μg/m3 (8) 4.4 μg/m3 (18) 41.0
 
May 18, 2019, 4 p.m. 3.5 ppb (3) -0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 46.0 ppb (35) 0.24 ppb (3) 10.0 μg/m3 (9) 3.7 μg/m3 (15) 35.0
 
May 18, 2019, 3 p.m. 3.5 ppb (3) -0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 40.0 ppb (31) 0.24 ppb (3) 9.0 μg/m3 (8) 6.1 μg/m3 (25) 31.0
 
May 18, 2019, 2 p.m. 3.8 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (28) 0.25 ppb (3) 7.0 μg/m3 (6) 5.3 μg/m3 (22) 28.0
 
May 18, 2019, 1 p.m. 11.7 ppb (11) 1.5 ppb (1) N/A 10.0 ppb (9) N/A N/A 14.0 ppb (11) 0.29 ppb (3) 10.0 μg/m3 (9) 3.9 μg/m3 (16) 16.0
 
May 18, 2019, noon 6.2 ppb (6) -0.6 ppb (0) N/A 7.0 ppb (6) N/A N/A 19.0 ppb (15) 0.25 ppb (3) 6.0 μg/m3 (5) 4.4 μg/m3 (18) 18.0
 
May 18, 2019, 11 a.m. 8.1 ppb (8) -0.5 ppb (0) N/A 9.0 ppb (8) N/A N/A 18.0 ppb (14) 0.27 ppb (3) 8.0 μg/m3 (7) 3.4 μg/m3 (14) 14.0
 
May 18, 2019, 10 a.m. 7.3 ppb (7) -0.7 ppb (0) N/A 8.0 ppb (7) N/A N/A 20.0 ppb (15) 0.28 ppb (3) 6.0 μg/m3 (5) 2.5 μg/m3 (10) 15.0
 
May 18, 2019, 9 a.m. 5.1 ppb (5) -0.7 ppb (0) N/A 6.0 ppb (6) N/A N/A 21.0 ppb (16) 0.26 ppb (3) 7.0 μg/m3 (6) 3.8 μg/m3 (16) 16.0
 
May 18, 2019, 8 a.m. 7.0 ppb (6) -0.7 ppb (0) N/A 8.0 ppb (7) N/A N/A 23.0 ppb (18) 0.27 ppb (3) 7.0 μg/m3 (6) 4.1 μg/m3 (17) 18.0
 
May 18, 2019, 7 a.m. 2.9 ppb (3) -0.8 ppb (0) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) 0.22 ppb (2) 6.0 μg/m3 (5) -0.3 μg/m3 (0) 26.0
 
May 18, 2019, 6 a.m. 1.8 ppb (2) -0.9 ppb (0) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (31) 0.2 ppb (2) 6.0 μg/m3 (5) 2.4 μg/m3 (10) 31.0
 
May 18, 2019, 5 a.m. 2.4 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (30) 0.21 ppb (2) 7.0 μg/m3 (6) 6.5 μg/m3 (27) 30.0
 
May 18, 2019, 4 a.m. 3.3 ppb (3) -1.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 39.0 ppb (30) 0.22 ppb (2) 8.0 μg/m3 (7) 6.3 μg/m3 (26) 30.0
 
May 18, 2019, 3 a.m. 1.4 ppb (1) -1.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (35) 0.2 ppb (2) 6.0 μg/m3 (5) 3.6 μg/m3 (15) 35.0
 
May 18, 2019, 2 a.m. 0.9 ppb (1) -1.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 49.0 ppb (38) 0.2 ppb (2) 6.0 μg/m3 (5) 1.6 μg/m3 (7) 38.0
 
May 18, 2019, 1 a.m. 1.2 ppb (1) -0.9 ppb (0) N/A 2.0 ppb (2) N/A N/A 50.0 ppb (38) 0.2 ppb (2) 7.0 μg/m3 (6) 5.5 μg/m3 (23) 38.0
 
May 18, 2019, midnight 1.4 ppb (1) -0.8 ppb (0) N/A 2.0 ppb (2) N/A N/A 56.0 ppb (43) 0.22 ppb (2) 8.0 μg/m3 (7) 7.0 μg/m3 (29) 43.0
 
May 17, 2019, 11 p.m. 1.5 ppb (1) -0.8 ppb (0) N/A 2.0 ppb (2) N/A N/A 57.0 ppb (44) 0.22 ppb (2) 9.0 μg/m3 (8) 2.4 μg/m3 (10) 44.0
 
May 17, 2019, 10 p.m. 1.1 ppb (1) -0.8 ppb (0) N/A 2.0 ppb (2) N/A N/A 54.0 ppb (42) 0.21 ppb (2) 9.0 μg/m3 (8) 4.8 μg/m3 (20) 42.0
 
May 17, 2019, 9 p.m. 2.1 ppb (2) -0.6 ppb (0) N/A 3.0 ppb (3) N/A N/A 52.0 ppb (40) 0.23 ppb (3) 12.0 μg/m3 (11) 8.1 μg/m3 (34) 40.0
 
May 17, 2019, 8 p.m. 0.8 ppb (1) -0.8 ppb (0) N/A 2.0 ppb (2) N/A N/A 52.0 ppb (40) 0.21 ppb (2) 12.0 μg/m3 (11) 7.4 μg/m3 (31) 40.0
 
May 17, 2019, 7 p.m. -0.1 ppb (0) -0.9 ppb (0) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) 0.19 ppb (2) 7.0 μg/m3 (6) 6.2 μg/m3 (26) 37.0
 
May 17, 2019, 6 p.m. -0.1 ppb (0) -0.8 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) 0.18 ppb (2) 7.0 μg/m3 (6) 6.0 μg/m3 (25) 35.0
 
May 17, 2019, 5 p.m. 0.8 ppb (1) -0.6 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) 0.17 ppb (2) 6.0 μg/m3 (5) 3.8 μg/m3 (16) 35.0
 
May 17, 2019, 4 p.m. 1.3 ppb (1) -0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (32) 0.18 ppb (2) 7.0 μg/m3 (6) 1.4 μg/m3 (6) 32.0
 
May 17, 2019, 3 p.m. 0.9 ppb (1) -0.6 ppb (0) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (29) 0.19 ppb (2) 10.0 μg/m3 (9) 5.3 μg/m3 (22) 29.0
 
May 17, 2019, 2 p.m. 3.1 ppb (3) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 33.0 ppb (25) 0.22 ppb (2) 12.0 μg/m3 (11) 3.0 μg/m3 (12) 25.0
 
May 17, 2019, 1 p.m. 8.7 ppb (8) 0.3 ppb (0) N/A 8.0 ppb (7) N/A N/A 21.0 ppb (16) 0.26 ppb (3) 11.0 μg/m3 (10) 3.2 μg/m3 (13) 16.0
 
May 17, 2019, noon 8.6 ppb (8) -0.3 ppb (0) N/A 9.0 ppb (8) N/A N/A 19.0 ppb (15) 0.25 ppb (3) 8.0 μg/m3 (7) 2.7 μg/m3 (11) 15.0
 
May 17, 2019, 11 a.m. 8.4 ppb (8) -0.7 ppb (0) N/A 9.0 ppb (8) N/A N/A 19.0 ppb (15) 0.26 ppb (3) 7.0 μg/m3 (6) 3.4 μg/m3 (14) 15.0
 
May 17, 2019, 10 a.m. 3.5 ppb (3) -0.7 ppb (0) N/A 4.0 ppb (4) N/A N/A 22.0 ppb (17) 0.2 ppb (2) 6.0 μg/m3 (5) 3.0 μg/m3 (12) 17.0
 
May 17, 2019, 9 a.m. 0.6 ppb (1) -1.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (28) 0.19 ppb (2) 6.0 μg/m3 (5) 4.8 μg/m3 (20) 28.0
 
May 17, 2019, 8 a.m. -0.5 ppb (0) -1.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (32) 0.18 ppb (2) 7.0 μg/m3 (6) 7.4 μg/m3 (31) 32.0
 
May 17, 2019, 7 a.m. -0.3 ppb (0) -1.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (32) 0.18 ppb (2) 6.0 μg/m3 (5) 6.1 μg/m3 (25) 32.0
 
May 17, 2019, 6 a.m. -0.2 ppb (0) -0.9 ppb (0) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (32) 0.18 ppb (2) 6.0 μg/m3 (5) 3.6 μg/m3 (15) 32.0
 
May 17, 2019, 5 a.m. 0.0 ppb (0) -0.9 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) 0.18 ppb (2) 7.0 μg/m3 (6) -0.2 μg/m3 (0) 35.0
 
May 17, 2019, 4 a.m. -0.1 ppb (0) -0.9 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) 0.18 ppb (2) 8.0 μg/m3 (7) 3.1 μg/m3 (13) 35.0
 
May 17, 2019, 3 a.m. -0.2 ppb (0) -0.9 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) 0.18 ppb (2) 6.0 μg/m3 (5) 5.8 μg/m3 (24) 35.0
 
May 17, 2019, 2 a.m. -0.2 ppb (0) -1.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) 0.19 ppb (2) 6.0 μg/m3 (5) 3.6 μg/m3 (15) 35.0
 
May 17, 2019, 1 a.m. 0.0 ppb (0) -0.9 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) 0.19 ppb (2) 6.0 μg/m3 (5) 4.2 μg/m3 (18) 35.0
 
May 17, 2019, midnight 0.0 ppb (0) -0.8 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) 0.19 ppb (2) 14.0 μg/m3 (13) 3.2 μg/m3 (13) 35.0
 
May 16, 2019, 11 p.m. -0.1 ppb (0) -0.8 ppb (0) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (34) 0.17 ppb (2) 11.0 μg/m3 (10) 5.2 μg/m3 (22) 34.0
 
May 16, 2019, 10 p.m. -0.1 ppb (0) -0.8 ppb (0) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (38) 0.16 ppb (2) 8.0 μg/m3 (7) N/A 38.0
 
May 16, 2019, 9 p.m. 0.2 ppb (0) -0.7 ppb (0) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (38) 0.17 ppb (2) 13.0 μg/m3 (12) N/A 38.0
 
May 16, 2019, 8 p.m. 0.0 ppb (0) -0.7 ppb (0) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (33) 0.16 ppb (2) 11.0 μg/m3 (10) N/A 33.0
 
May 16, 2019, 7 p.m. 0.4 ppb (0) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (27) 0.15 ppb (2) 2.0 μg/m3 (2) N/A 27.0
 
May 16, 2019, 6 p.m. 0.9 ppb (1) -0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 27.0 ppb (21) 0.16 ppb (2) 4.0 μg/m3 (4) -2.0 μg/m3 (0) 21.0
 
May 16, 2019, 5 p.m. 1.7 ppb (2) -0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 27.0 ppb (21) 0.18 ppb (2) 3.0 μg/m3 (3) -2.7 μg/m3 (0) 21.0
 
May 16, 2019, 4 p.m. 2.1 ppb (2) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 27.0 ppb (21) 0.17 ppb (2) 4.0 μg/m3 (4) N/A 21.0
 
May 16, 2019, 3 p.m. 2.4 ppb (2) -0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 28.0 ppb (22) 0.19 ppb (2) 4.0 μg/m3 (4) -1.8 μg/m3 (0) 22.0
 
May 16, 2019, 2 p.m. 1.0 ppb (1) -0.9 ppb (0) N/A 2.0 ppb (2) N/A N/A 29.0 ppb (22) 0.19 ppb (2) 7.0 μg/m3 (6) 3.2 μg/m3 (13) 22.0
 
May 16, 2019, 1 p.m. 0.1 ppb (0) -1.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 31.0 ppb (24) 0.18 ppb (2) 6.0 μg/m3 (5) 4.8 μg/m3 (20) 24.0
 
May 16, 2019, noon 0.4 ppb (0) -1.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 29.0 ppb (22) 0.19 ppb (2) 8.0 μg/m3 (7) 1.4 μg/m3 (6) 22.0
 
May 16, 2019, 11 a.m. 0.6 ppb (1) -1.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 28.0 ppb (22) 0.18 ppb (2) 6.0 μg/m3 (5) -1.3 μg/m3 (0) 22.0
 
May 16, 2019, 10 a.m. 0.5 ppb (0) -1.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 28.0 ppb (22) 0.18 ppb (2) 5.0 μg/m3 (5) -1.1 μg/m3 (0) 22.0
 
May 16, 2019, 9 a.m. -0.6 ppb (0) -1.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 35.0 ppb (27) 0.17 ppb (2) 3.0 μg/m3 (3) 0.6 μg/m3 (2) 27.0
 
May 16, 2019, 8 a.m. -0.7 ppb (0) -1.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 38.0 ppb (29) 0.17 ppb (2) 3.0 μg/m3 (3) -0.7 μg/m3 (0) 29.0
 
May 16, 2019, 7 a.m. -0.6 ppb (0) -1.1 ppb (0) N/A 0.0 ppb (0) N/A N/A 41.0 ppb (32) 0.16 ppb (2) 2.0 μg/m3 (2) 0.4 μg/m3 (2) 32.0
 
May 16, 2019, 6 a.m. -0.3 ppb (0) -1.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (34) 0.18 ppb (2) 3.0 μg/m3 (3) 2.5 μg/m3 (10) 34.0
 
May 16, 2019, 5 a.m. 0.1 ppb (0) -1.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (33) 0.17 ppb (2) 5.0 μg/m3 (5) 1.9 μg/m3 (8) 33.0
 
May 16, 2019, 4 a.m. 1.2 ppb (1) -1.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (29) 0.18 ppb (2) 3.0 μg/m3 (3) -0.7 μg/m3 (0) 29.0
 
May 16, 2019, 3 a.m. -0.1 ppb (0) -1.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (29) 0.16 ppb (2) 5.0 μg/m3 (5) 1.1 μg/m3 (5) 29.0
 
May 16, 2019, 2 a.m. 0.8 ppb (1) -1.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (30) 0.19 ppb (2) 10.0 μg/m3 (9) 6.0 μg/m3 (25) 30.0
 
May 16, 2019, 1 a.m. 0.7 ppb (1) -0.9 ppb (0) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (32) 0.2 ppb (2) 11.0 μg/m3 (10) 6.2 μg/m3 (26) 32.0
 
May 16, 2019, midnight 0.7 ppb (1) -0.9 ppb (0) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (33) 0.21 ppb (2) 9.0 μg/m3 (8) 4.6 μg/m3 (19) 33.0
 
May 15, 2019, 11 p.m. 1.1 ppb (1) -0.7 ppb (0) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) 0.26 ppb (3) 9.0 μg/m3 (8) 4.8 μg/m3 (20) 35.0
 
May 15, 2019, 10 p.m. 1.3 ppb (1) -0.7 ppb (0) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) 0.3 ppb (3) 14.0 μg/m3 (13) 3.8 μg/m3 (16) 35.0
 
May 15, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 5.7 μg/m3 (24) 24.0
 
May 15, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 10.8 μg/m3 (45) 45.0
 
May 15, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 7.4 μg/m3 (31) 31.0
 
May 15, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 5.4 μg/m3 (23) 23.0
 
May 15, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 7.7 μg/m3 (32) 32.0
 
May 15, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 7.7 μg/m3 (32) 32.0
 
May 15, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 9.1 μg/m3 (38) 38.0
 
May 15, 2019, 2 p.m. 3.5 ppb (3) -0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (23) 0.23 ppb (3) 8.0 μg/m3 (7) 9.4 μg/m3 (39) 39.0
 
May 15, 2019, 1 p.m. 2.8 ppb (3) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 27.0 ppb (21) 0.22 ppb (2) 9.0 μg/m3 (8) 5.2 μg/m3 (22) 22.0
 
May 15, 2019, noon 2.3 ppb (2) -0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 27.0 ppb (21) 0.22 ppb (2) 4.0 μg/m3 (4) 4.1 μg/m3 (17) 21.0
 
May 15, 2019, 11 a.m. 2.2 ppb (2) -0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (20) 0.21 ppb (2) 6.0 μg/m3 (5) 4.6 μg/m3 (19) 20.0
 
May 15, 2019, 10 a.m. 2.6 ppb (2) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (19) 0.21 ppb (2) 7.0 μg/m3 (6) 4.5 μg/m3 (19) 19.0
 
May 15, 2019, 9 a.m. 3.1 ppb (3) -0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 28.0 ppb (22) 0.21 ppb (2) 5.0 μg/m3 (5) 4.1 μg/m3 (17) 22.0
 
May 15, 2019, 8 a.m. 2.6 ppb (2) -0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 28.0 ppb (22) 0.21 ppb (2) 5.0 μg/m3 (5) 5.2 μg/m3 (22) 22.0
 
May 15, 2019, 7 a.m. 4.3 ppb (4) -0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 29.0 ppb (22) 0.23 ppb (3) 6.0 μg/m3 (5) 4.4 μg/m3 (18) 22.0
 
May 15, 2019, 6 a.m. 2.6 ppb (2) -0.6 ppb (0) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (27) 0.2 ppb (2) 6.0 μg/m3 (5) 2.1 μg/m3 (9) 27.0
 
May 15, 2019, 5 a.m. 2.2 ppb (2) -0.7 ppb (0) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (29) 0.2 ppb (2) 7.0 μg/m3 (6) 2.6 μg/m3 (11) 29.0
 
May 15, 2019, 4 a.m. 2.6 ppb (2) -0.8 ppb (0) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (30) 0.21 ppb (2) 9.0 μg/m3 (8) 3.6 μg/m3 (15) 30.0
 
May 15, 2019, 3 a.m. 4.8 ppb (4) -0.8 ppb (0) N/A 6.0 ppb (6) N/A N/A 47.0 ppb (36) 0.27 ppb (3) 14.0 μg/m3 (13) 8.2 μg/m3 (34) 36.0
 
May 15, 2019, 2 a.m. 4.5 ppb (4) -0.9 ppb (0) N/A 5.0 ppb (5) N/A N/A 63.0 ppb (48) 0.28 ppb (3) 16.0 μg/m3 (15) 8.8 μg/m3 (37) 48.0
 
May 15, 2019, 1 a.m. 3.6 ppb (3) -0.8 ppb (0) N/A 4.0 ppb (4) N/A N/A 67.0 ppb (52) 0.28 ppb (3) 15.0 μg/m3 (14) 3.6 μg/m3 (15) 52.0
 
May 15, 2019, midnight 2.4 ppb (2) -0.8 ppb (0) N/A 3.0 ppb (3) N/A N/A 70.0 ppb (54) 0.27 ppb (3) 12.0 μg/m3 (11) -0.1 μg/m3 (0) 54.0