AQSQID: 061072002

Site Name: Visalia - N. Church Street

Location: Visalia, CA

Reporting: True, Located: True

Current AQI: 46.0

Visalia CA, US: 36.3322, -119.2903

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 25, 2019, 6 p.m. 3.5 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 45.0 ppb (35) N/A 20.0 μg/m3 (18) 11.0 μg/m3 (46) 46.0
 
May 25, 2019, 5 p.m. 5.1 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (32) N/A 22.0 μg/m3 (20) 11.0 μg/m3 (46) 46.0
 
May 25, 2019, 4 p.m. 6.0 ppb (6) 1.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 33.0 ppb (25) N/A 30.0 μg/m3 (27) 16.0 μg/m3 (59) 59.0
 
May 25, 2019, 3 p.m. 6.2 ppb (6) 1.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 26.0 ppb (20) N/A 24.0 μg/m3 (22) 15.0 μg/m3 (56) 56.0
 
May 25, 2019, 2 p.m. 5.7 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 21.0 ppb (16) N/A 23.0 μg/m3 (21) 15.0 μg/m3 (56) 56.0
 
May 25, 2019, 1 p.m. 9.1 ppb (8) 1.3 ppb (1) N/A 8.0 ppb (7) N/A N/A 11.0 ppb (8) N/A 28.0 μg/m3 (25) 16.0 μg/m3 (59) 59.0
 
May 25, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) 22.0 μg/m3 (71) 71.0
 
May 25, 2019, 11 a.m. 11.8 ppb (11) 0.1 ppb (0) N/A 12.0 ppb (11) N/A N/A 7.0 ppb (5) N/A 25.0 μg/m3 (23) 18.0 μg/m3 (63) 63.0
 
May 25, 2019, 10 a.m. 9.4 ppb (9) 0.2 ppb (0) N/A 9.0 ppb (8) N/A N/A 12.0 ppb (9) N/A 24.0 μg/m3 (22) 15.0 μg/m3 (56) 56.0
 
May 25, 2019, 9 a.m. 11.3 ppb (10) 0.3 ppb (0) N/A 11.0 ppb (10) N/A N/A 12.0 ppb (9) N/A 22.0 μg/m3 (20) 14.0 μg/m3 (54) 54.0
 
May 25, 2019, 8 a.m. 14.5 ppb (13) 0.5 ppb (0) N/A 14.0 ppb (13) N/A N/A 11.0 ppb (8) N/A 20.0 μg/m3 (18) 12.0 μg/m3 (50) 50.0
 
May 25, 2019, 7 a.m. 10.2 ppb (9) -0.1 ppb (0) N/A 10.0 ppb (9) N/A N/A 17.0 ppb (13) N/A 24.0 μg/m3 (22) 15.0 μg/m3 (56) 56.0
 
May 25, 2019, 6 a.m. 10.8 ppb (10) -0.2 ppb (0) N/A 11.0 ppb (10) N/A N/A 20.0 ppb (15) N/A 18.0 μg/m3 (16) 10.0 μg/m3 (42) 42.0
 
May 25, 2019, 5 a.m. 10.0 ppb (9) -0.1 ppb (0) N/A 10.0 ppb (9) N/A N/A 26.0 ppb (20) N/A 20.0 μg/m3 (18) 6.0 μg/m3 (25) 25.0
 
May 25, 2019, 4 a.m. 6.1 ppb (6) -0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 36.0 ppb (28) N/A 14.0 μg/m3 (13) 6.0 μg/m3 (25) 28.0
 
May 25, 2019, 3 a.m. 5.1 ppb (5) -0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 42.0 ppb (32) N/A 23.0 μg/m3 (21) 9.0 μg/m3 (38) 38.0
 
May 25, 2019, 2 a.m. 2.9 ppb (3) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 41.0 ppb (32) N/A 16.0 μg/m3 (15) 6.0 μg/m3 (25) 32.0
 
May 25, 2019, 1 a.m. 2.8 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (32) N/A 16.0 μg/m3 (15) 8.0 μg/m3 (33) 33.0
 
May 25, 2019, midnight 3.2 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (33) N/A 15.0 μg/m3 (14) 6.0 μg/m3 (25) 33.0
 
May 24, 2019, 11 p.m. 3.3 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) N/A 20.0 μg/m3 (18) 7.0 μg/m3 (29) 34.0
 
May 24, 2019, 10 p.m. 3.5 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) N/A 20.0 μg/m3 (18) 8.0 μg/m3 (33) 34.0
 
May 24, 2019, 9 p.m. 3.6 ppb (3) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 43.0 ppb (33) N/A 19.0 μg/m3 (17) 9.0 μg/m3 (38) 38.0
 
May 24, 2019, 8 p.m. 3.6 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 41.0 ppb (32) N/A 17.0 μg/m3 (15) 6.0 μg/m3 (25) 32.0
 
May 24, 2019, 7 p.m. 4.5 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (28) N/A 11.0 μg/m3 (10) 6.0 μg/m3 (25) 28.0
 
May 24, 2019, 6 p.m. 4.5 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 35.0 ppb (27) N/A 11.0 μg/m3 (10) 3.0 μg/m3 (12) 27.0
 
May 24, 2019, 5 p.m. 3.9 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (25) N/A 9.0 μg/m3 (8) 4.0 μg/m3 (17) 25.0
 
May 24, 2019, 4 p.m. 4.6 ppb (4) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (23) N/A 11.0 μg/m3 (10) 4.0 μg/m3 (17) 23.0
 
May 24, 2019, 3 p.m. 4.9 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (22) N/A 10.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
May 24, 2019, 2 p.m. 7.6 ppb (7) 1.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 21.0 ppb (16) N/A 9.0 μg/m3 (8) 9.0 μg/m3 (38) 38.0
 
May 24, 2019, 1 p.m. 8.5 ppb (8) 1.1 ppb (1) N/A 7.0 ppb (6) N/A N/A 18.0 ppb (14) N/A 10.0 μg/m3 (9) 5.0 μg/m3 (21) 21.0
 
May 24, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 2.0 μg/m3 (8) 15.0
 
May 24, 2019, 11 a.m. 3.7 ppb (3) -0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 23.0 ppb (18) N/A 9.0 μg/m3 (8) 2.0 μg/m3 (8) 18.0
 
May 24, 2019, 10 a.m. 4.7 ppb (4) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 20.0 ppb (15) N/A 4.0 μg/m3 (4) 3.0 μg/m3 (12) 15.0
 
May 24, 2019, 9 a.m. 4.2 ppb (4) -0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 20.0 ppb (15) N/A 4.0 μg/m3 (4) 3.0 μg/m3 (12) 15.0
 
May 24, 2019, 8 a.m. 4.4 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 20.0 ppb (15) N/A 4.0 μg/m3 (4) 3.0 μg/m3 (12) 15.0
 
May 24, 2019, 7 a.m. 4.8 ppb (4) -0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 19.0 ppb (15) N/A 5.0 μg/m3 (5) 4.0 μg/m3 (17) 17.0
 
May 24, 2019, 6 a.m. 5.6 ppb (5) -0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 19.0 ppb (15) N/A 8.0 μg/m3 (7) 4.0 μg/m3 (17) 17.0
 
May 24, 2019, 5 a.m. 6.7 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A N/A 21.0 ppb (16) N/A 10.0 μg/m3 (9) 2.0 μg/m3 (8) 16.0
 
May 24, 2019, 4 a.m. 6.3 ppb (6) -0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 25.0 ppb (19) N/A 8.0 μg/m3 (7) 4.0 μg/m3 (17) 19.0
 
May 24, 2019, 3 a.m. 4.5 ppb (4) -0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 30.0 ppb (23) N/A 12.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
May 24, 2019, 2 a.m. 5.9 ppb (5) 0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 29.0 ppb (22) N/A 14.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
May 24, 2019, 1 a.m. 4.9 ppb (5) 0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 32.0 ppb (25) N/A 15.0 μg/m3 (14) 6.0 μg/m3 (25) 25.0
 
May 24, 2019, midnight 5.1 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 37.0 ppb (28) N/A 20.0 μg/m3 (18) 8.0 μg/m3 (33) 33.0
 
May 23, 2019, 11 p.m. 4.9 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 39.0 ppb (30) N/A 17.0 μg/m3 (15) 8.0 μg/m3 (33) 33.0
 
May 23, 2019, 10 p.m. 5.1 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (29) N/A 28.0 μg/m3 (25) 9.0 μg/m3 (38) 38.0
 
May 23, 2019, 9 p.m. 5.2 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (28) N/A 17.0 μg/m3 (15) 7.0 μg/m3 (29) 29.0
 
May 23, 2019, 8 p.m. 6.4 ppb (6) 1.5 ppb (1) N/A 5.0 ppb (5) N/A N/A 33.0 ppb (25) N/A 17.0 μg/m3 (15) 4.0 μg/m3 (17) 25.0
 
May 23, 2019, 7 p.m. 5.9 ppb (5) 1.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 31.0 ppb (24) N/A 16.0 μg/m3 (15) 3.0 μg/m3 (12) 24.0
 
May 23, 2019, 6 p.m. 6.6 ppb (6) 1.7 ppb (2) N/A 5.0 ppb (5) N/A N/A 27.0 ppb (21) N/A 13.0 μg/m3 (12) 3.0 μg/m3 (12) 21.0
 
May 23, 2019, 5 p.m. 5.8 ppb (5) 1.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 27.0 ppb (21) N/A 13.0 μg/m3 (12) 6.0 μg/m3 (25) 25.0
 
May 23, 2019, 4 p.m. 5.2 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (22) N/A 15.0 μg/m3 (14) 9.0 μg/m3 (38) 38.0
 
May 23, 2019, 3 p.m. 4.9 ppb (5) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 28.0 ppb (22) N/A 11.0 μg/m3 (10) 7.0 μg/m3 (29) 29.0
 
May 23, 2019, 2 p.m. 8.0 ppb (7) 1.2 ppb (1) N/A 7.0 ppb (6) N/A N/A 20.0 ppb (15) N/A 15.0 μg/m3 (14) 7.0 μg/m3 (29) 29.0
 
May 23, 2019, 1 p.m. 8.7 ppb (8) 0.6 ppb (1) N/A 8.0 ppb (7) N/A N/A 17.0 ppb (13) N/A 12.0 μg/m3 (11) 4.0 μg/m3 (17) 17.0
 
May 23, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 3.0 μg/m3 (12) 12.0
 
May 23, 2019, 11 a.m. 4.4 ppb (4) -0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 22.0 ppb (17) N/A 6.0 μg/m3 (5) 3.0 μg/m3 (12) 17.0
 
May 23, 2019, 10 a.m. 2.7 ppb (3) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (19) N/A 1.0 μg/m3 (1) 5.0 μg/m3 (21) 21.0
 
May 23, 2019, 9 a.m. 1.9 ppb (2) -0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 28.0 ppb (22) N/A 2.0 μg/m3 (2) 6.0 μg/m3 (25) 25.0
 
May 23, 2019, 8 a.m. 1.5 ppb (1) -0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 31.0 ppb (24) N/A 3.0 μg/m3 (3) 3.0 μg/m3 (12) 24.0
 
May 23, 2019, 7 a.m. 2.8 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 24.0 ppb (18) N/A 7.0 μg/m3 (6) 4.0 μg/m3 (17) 18.0
 
May 23, 2019, 6 a.m. 5.5 ppb (5) -0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 24.0 ppb (18) N/A 11.0 μg/m3 (10) 5.0 μg/m3 (21) 21.0
 
May 23, 2019, 5 a.m. 5.7 ppb (5) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A 27.0 ppb (21) N/A 17.0 μg/m3 (15) 5.0 μg/m3 (21) 21.0
 
May 23, 2019, 4 a.m. 6.3 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A 28.0 ppb (22) N/A 9.0 μg/m3 (8) 4.0 μg/m3 (17) 22.0
 
May 23, 2019, 3 a.m. 4.1 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 31.0 ppb (24) N/A 8.0 μg/m3 (7) 3.0 μg/m3 (12) 24.0
 
May 23, 2019, 2 a.m. 3.3 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (26) N/A 11.0 μg/m3 (10) 3.0 μg/m3 (12) 26.0
 
May 23, 2019, 1 a.m. 3.8 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (29) N/A 11.0 μg/m3 (10) 3.0 μg/m3 (12) 29.0
 
May 23, 2019, midnight 4.0 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (28) N/A 9.0 μg/m3 (8) 6.0 μg/m3 (25) 28.0
 
May 22, 2019, 11 p.m. 2.8 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 41.0 ppb (32) N/A 9.0 μg/m3 (8) 4.0 μg/m3 (17) 32.0
 
May 22, 2019, 10 p.m. 3.2 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (31) N/A 11.0 μg/m3 (10) 4.0 μg/m3 (17) 31.0
 
May 22, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 5.0 μg/m3 (21) 21.0
 
May 22, 2019, 8 p.m. 4.7 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 35.0 ppb (27) N/A 9.0 μg/m3 (8) 4.0 μg/m3 (17) 27.0
 
May 22, 2019, 7 p.m. 4.0 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (28) N/A 5.0 μg/m3 (5) 5.0 μg/m3 (21) 28.0
 
May 22, 2019, 6 p.m. 4.1 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (27) N/A 6.0 μg/m3 (5) 3.0 μg/m3 (12) 27.0
 
May 22, 2019, 5 p.m. 4.6 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (25) N/A 8.0 μg/m3 (7) 4.0 μg/m3 (17) 25.0
 
May 22, 2019, 4 p.m. 5.9 ppb (5) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 29.0 ppb (22) N/A 14.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
May 22, 2019, 3 p.m. 8.0 ppb (7) 1.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 27.0 ppb (21) N/A 11.0 μg/m3 (10) 7.0 μg/m3 (29) 29.0
 
May 22, 2019, 2 p.m. 7.3 ppb (7) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A 24.0 ppb (18) N/A 11.0 μg/m3 (10) 5.0 μg/m3 (21) 21.0
 
May 22, 2019, 1 p.m. 6.8 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A 21.0 ppb (16) N/A 9.0 μg/m3 (8) 5.0 μg/m3 (21) 21.0
 
May 22, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 5.0 μg/m3 (21) 21.0
 
May 22, 2019, 11 a.m. 2.6 ppb (2) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (20) N/A -1.0 μg/m3 (0) 4.0 μg/m3 (17) 20.0
 
May 22, 2019, 10 a.m. 1.8 ppb (2) -0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 27.0 ppb (21) N/A 2.0 μg/m3 (2) 5.0 μg/m3 (21) 21.0
 
May 22, 2019, 9 a.m. 2.2 ppb (2) -0.6 ppb (0) N/A 3.0 ppb (3) N/A N/A 29.0 ppb (22) N/A 6.0 μg/m3 (5) 3.0 μg/m3 (12) 22.0
 
May 22, 2019, 8 a.m. 2.6 ppb (2) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 30.0 ppb (23) N/A 7.0 μg/m3 (6) 3.0 μg/m3 (12) 23.0
 
May 22, 2019, 7 a.m. 2.2 ppb (2) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (25) N/A 4.0 μg/m3 (4) 4.0 μg/m3 (17) 25.0
 
May 22, 2019, 6 a.m. 2.5 ppb (2) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 33.0 ppb (25) N/A 5.0 μg/m3 (5) 3.0 μg/m3 (12) 25.0
 
May 22, 2019, 5 a.m. 2.2 ppb (2) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (27) N/A 5.0 μg/m3 (5) 2.0 μg/m3 (8) 27.0
 
May 22, 2019, 4 a.m. 3.8 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 35.0 ppb (27) N/A 8.0 μg/m3 (7) 3.0 μg/m3 (12) 27.0
 
May 22, 2019, 3 a.m. 4.7 ppb (4) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 33.0 ppb (25) N/A 12.0 μg/m3 (11) 5.0 μg/m3 (21) 25.0
 
May 22, 2019, 2 a.m. 3.9 ppb (4) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (28) N/A 8.0 μg/m3 (7) 6.0 μg/m3 (25) 28.0
 
May 22, 2019, 1 a.m. 3.7 ppb (3) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 40.0 ppb (31) N/A 11.0 μg/m3 (10) 1.0 μg/m3 (4) 31.0
 
May 22, 2019, midnight 3.9 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 40.0 ppb (31) N/A 24.0 μg/m3 (22) 4.0 μg/m3 (17) 31.0
 
May 21, 2019, 11 p.m. 4.1 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (32) N/A 59.0 μg/m3 (52) 5.0 μg/m3 (21) 52.0
 
May 21, 2019, 10 p.m. 3.5 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) N/A 13.0 μg/m3 (12) 3.0 μg/m3 (12) 34.0
 
May 21, 2019, 9 p.m. 3.6 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) N/A 12.0 μg/m3 (11) 2.0 μg/m3 (8) 34.0
 
May 21, 2019, 8 p.m. 3.3 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (35) N/A 11.0 μg/m3 (10) 4.0 μg/m3 (17) 35.0
 
May 21, 2019, 7 p.m. 3.5 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) N/A 16.0 μg/m3 (15) 5.0 μg/m3 (21) 34.0
 
May 21, 2019, 6 p.m. 3.2 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 41.0 ppb (32) N/A 13.0 μg/m3 (12) 2.0 μg/m3 (8) 32.0
 
May 21, 2019, 5 p.m. 3.9 ppb (4) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (28) N/A 18.0 μg/m3 (16) 3.0 μg/m3 (12) 28.0
 
May 21, 2019, 4 p.m. 4.7 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (28) N/A 15.0 μg/m3 (14) N/A 28.0
 
May 21, 2019, 3 p.m. 5.6 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 28.0 ppb (22) N/A 14.0 μg/m3 (13) 4.0 μg/m3 (17) 22.0
 
May 21, 2019, 2 p.m. 4.9 ppb (5) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 28.0 ppb (22) N/A 8.0 μg/m3 (7) 4.0 μg/m3 (17) 22.0
 
May 21, 2019, 1 p.m. 3.9 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (22) N/A 10.0 μg/m3 (9) 4.0 μg/m3 (17) 22.0
 
May 21, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 5.0 μg/m3 (21) 21.0
 
May 21, 2019, 11 a.m. 5.9 ppb (5) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A 19.0 ppb (15) N/A 14.0 μg/m3 (13) 4.0 μg/m3 (17) 17.0
 
May 21, 2019, 10 a.m. 6.6 ppb (6) -0.1 ppb (0) N/A 7.0 ppb (6) N/A N/A 17.0 ppb (13) N/A 16.0 μg/m3 (15) 3.0 μg/m3 (12) 15.0
 
May 21, 2019, 9 a.m. 6.1 ppb (6) -0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 21.0 ppb (16) N/A 18.0 μg/m3 (16) 2.0 μg/m3 (8) 16.0
 
May 21, 2019, 8 a.m. 5.1 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 28.0 ppb (22) N/A 11.0 μg/m3 (10) 5.0 μg/m3 (21) 22.0
 
May 21, 2019, 7 a.m. 12.2 ppb (11) 0.3 ppb (0) N/A 12.0 ppb (11) N/A N/A 21.0 ppb (16) N/A 20.0 μg/m3 (18) 8.0 μg/m3 (33) 33.0
 
May 21, 2019, 6 a.m. 12.6 ppb (12) 0.2 ppb (0) N/A 12.0 ppb (11) N/A N/A 23.0 ppb (18) N/A 18.0 μg/m3 (16) 10.0 μg/m3 (42) 42.0
 
May 21, 2019, 5 a.m. 11.3 ppb (10) 0.1 ppb (0) N/A 11.0 ppb (10) N/A N/A 29.0 ppb (22) N/A 20.0 μg/m3 (18) 6.0 μg/m3 (25) 25.0
 
May 21, 2019, 4 a.m. 11.3 ppb (10) 0.0 ppb (0) N/A 11.0 ppb (10) N/A N/A 34.0 ppb (26) N/A 30.0 μg/m3 (27) 6.0 μg/m3 (25) 27.0
 
May 21, 2019, 3 a.m. 5.0 ppb (5) -0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 45.0 ppb (35) N/A 16.0 μg/m3 (15) 6.0 μg/m3 (25) 35.0
 
May 21, 2019, 2 a.m. 3.4 ppb (3) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 49.0 ppb (38) N/A 14.0 μg/m3 (13) 5.0 μg/m3 (21) 38.0
 
May 21, 2019, 1 a.m. 2.7 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 52.0 ppb (40) N/A 11.0 μg/m3 (10) 7.0 μg/m3 (29) 40.0
 
May 21, 2019, midnight 3.2 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 52.0 ppb (40) N/A 17.0 μg/m3 (15) 6.0 μg/m3 (25) 40.0
 
May 20, 2019, 11 p.m. 3.2 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 52.0 ppb (40) N/A 11.0 μg/m3 (10) 4.0 μg/m3 (17) 40.0
 
May 20, 2019, 10 p.m. 3.2 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 52.0 ppb (40) N/A 9.0 μg/m3 (8) 6.0 μg/m3 (25) 40.0
 
May 20, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
May 20, 2019, 8 p.m. 4.1 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 49.0 ppb (38) N/A 12.0 μg/m3 (11) 1.0 μg/m3 (4) 38.0
 
May 20, 2019, 7 p.m. 2.8 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 48.0 ppb (37) N/A 10.0 μg/m3 (9) 3.0 μg/m3 (12) 37.0
 
May 20, 2019, 6 p.m. 3.4 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) N/A 10.0 μg/m3 (9) 3.0 μg/m3 (12) 34.0
 
May 20, 2019, 5 p.m. 3.6 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (33) N/A 17.0 μg/m3 (15) 3.0 μg/m3 (12) 33.0
 
May 20, 2019, 4 p.m. 4.2 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 40.0 ppb (31) N/A 8.0 μg/m3 (7) 4.0 μg/m3 (17) 31.0
 
May 20, 2019, 3 p.m. 6.0 ppb (6) 1.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 36.0 ppb (28) N/A 9.0 μg/m3 (8) 5.0 μg/m3 (21) 28.0
 
May 20, 2019, 2 p.m. 8.0 ppb (7) 1.4 ppb (1) N/A 7.0 ppb (6) N/A N/A 32.0 ppb (25) N/A 14.0 μg/m3 (13) 5.0 μg/m3 (21) 25.0
 
May 20, 2019, 1 p.m. 11.1 ppb (10) 1.2 ppb (1) N/A 10.0 ppb (9) N/A N/A 21.0 ppb (16) N/A 13.0 μg/m3 (12) 5.0 μg/m3 (21) 21.0
 
May 20, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 3.0 μg/m3 (12) 12.0
 
May 20, 2019, 11 a.m. 4.9 ppb (5) -0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 20.0 ppb (15) N/A 6.0 μg/m3 (5) 2.0 μg/m3 (8) 15.0
 
May 20, 2019, 10 a.m. 4.4 ppb (4) -0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A 20.0 ppb (15) N/A 7.0 μg/m3 (6) N/A 15.0
 
May 20, 2019, 9 a.m. 3.8 ppb (4) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 23.0 ppb (18) N/A 8.0 μg/m3 (7) 3.0 μg/m3 (12) 18.0
 
May 20, 2019, 8 a.m. 3.8 ppb (4) -0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 27.0 ppb (21) N/A 8.0 μg/m3 (7) 3.0 μg/m3 (12) 21.0
 
May 20, 2019, 7 a.m. 3.0 ppb (3) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (25) N/A 7.0 μg/m3 (6) 3.0 μg/m3 (12) 25.0
 
May 20, 2019, 6 a.m. 2.4 ppb (2) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (28) N/A 7.0 μg/m3 (6) 2.0 μg/m3 (8) 28.0
 
May 20, 2019, 5 a.m. 2.8 ppb (3) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (29) N/A 8.0 μg/m3 (7) 4.0 μg/m3 (17) 29.0
 
May 20, 2019, 4 a.m. 3.6 ppb (3) -0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) N/A 3.0 μg/m3 (3) 6.0 μg/m3 (25) 26.0
 
May 20, 2019, 3 a.m. 3.2 ppb (3) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (28) N/A 6.0 μg/m3 (5) 7.0 μg/m3 (29) 29.0
 
May 20, 2019, 2 a.m. 3.3 ppb (3) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (32) N/A 9.0 μg/m3 (8) 3.0 μg/m3 (12) 32.0
 
May 20, 2019, 1 a.m. 3.0 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (33) N/A 9.0 μg/m3 (8) 2.0 μg/m3 (8) 33.0
 
May 20, 2019, midnight 3.9 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 43.0 ppb (33) N/A 7.0 μg/m3 (6) 3.0 μg/m3 (12) 33.0
 
May 19, 2019, 11 p.m. 2.5 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 49.0 ppb (38) N/A 4.0 μg/m3 (4) 0.0 μg/m3 (0) 38.0
 
May 19, 2019, 10 p.m. 1.9 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 49.0 ppb (38) N/A 4.0 μg/m3 (4) 0.0 μg/m3 (0) 38.0
 
May 19, 2019, 9 p.m. 2.9 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 45.0 ppb (35) N/A 8.0 μg/m3 (7) 0.0 μg/m3 (0) 35.0
 
May 19, 2019, 8 p.m. 2.8 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 50.0 ppb (38) N/A 14.0 μg/m3 (13) 4.0 μg/m3 (17) 38.0
 
May 19, 2019, 7 p.m. 2.6 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (35) N/A 13.0 μg/m3 (12) 6.0 μg/m3 (25) 35.0
 
May 19, 2019, 6 p.m. 2.9 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (32) N/A 12.0 μg/m3 (11) 6.0 μg/m3 (25) 32.0
 
May 19, 2019, 5 p.m. 3.5 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (28) N/A 8.0 μg/m3 (7) 4.0 μg/m3 (17) 28.0
 
May 19, 2019, 4 p.m. 3.0 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (26) N/A 8.0 μg/m3 (7) 1.0 μg/m3 (4) 26.0
 
May 19, 2019, 3 p.m. 2.8 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 33.0 ppb (25) N/A 6.0 μg/m3 (5) 1.0 μg/m3 (4) 25.0
 
May 19, 2019, 2 p.m. 2.3 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 28.0 ppb (22) N/A 4.0 μg/m3 (4) 4.0 μg/m3 (17) 22.0
 
May 19, 2019, 1 p.m. 2.2 ppb (2) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 27.0 ppb (21) N/A 4.0 μg/m3 (4) 7.0 μg/m3 (29) 29.0
 
May 19, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 1.0 μg/m3 (4) 5.0
 
May 19, 2019, 11 a.m. 2.1 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 27.0 ppb (21) N/A 3.0 μg/m3 (3) 2.0 μg/m3 (8) 21.0
 
May 19, 2019, 10 a.m. 1.4 ppb (1) -0.6 ppb (0) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (23) N/A 3.0 μg/m3 (3) 4.0 μg/m3 (17) 23.0
 
May 19, 2019, 9 a.m. 1.6 ppb (1) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 32.0 ppb (25) N/A 1.0 μg/m3 (1) N/A 25.0
 
May 19, 2019, 8 a.m. 1.2 ppb (1) -0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (25) N/A 4.0 μg/m3 (4) 3.0 μg/m3 (12) 25.0
 
May 19, 2019, 7 a.m. 1.5 ppb (1) -0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (26) N/A 5.0 μg/m3 (5) 3.0 μg/m3 (12) 26.0
 
May 19, 2019, 6 a.m. 2.0 ppb (2) -0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (25) N/A 4.0 μg/m3 (4) 3.0 μg/m3 (12) 25.0
 
May 19, 2019, 5 a.m. 2.1 ppb (2) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (27) N/A 3.0 μg/m3 (3) 4.0 μg/m3 (17) 27.0
 
May 19, 2019, 4 a.m. 3.0 ppb (3) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (27) N/A 4.0 μg/m3 (4) 6.0 μg/m3 (25) 27.0
 
May 19, 2019, 3 a.m. 4.4 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) N/A 8.0 μg/m3 (7) 6.0 μg/m3 (25) 26.0
 
May 19, 2019, 2 a.m. 3.3 ppb (3) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (28) N/A 12.0 μg/m3 (11) 3.0 μg/m3 (12) 28.0
 
May 19, 2019, 1 a.m. 3.4 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (31) N/A 13.0 μg/m3 (12) 5.0 μg/m3 (21) 31.0
 
May 19, 2019, midnight 3.6 ppb (3) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (32) N/A 36.0 μg/m3 (33) 6.0 μg/m3 (25) 33.0
 
May 18, 2019, 11 p.m. 4.9 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 46.0 ppb (35) N/A 31.0 μg/m3 (28) 10.0 μg/m3 (42) 42.0
 
May 18, 2019, 10 p.m. 4.8 ppb (4) 0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 47.0 ppb (36) N/A 34.0 μg/m3 (31) 7.0 μg/m3 (29) 36.0
 
May 18, 2019, 9 p.m. 4.0 ppb (4) -0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 47.0 ppb (36) N/A 25.0 μg/m3 (23) 10.0 μg/m3 (42) 42.0
 
May 18, 2019, 8 p.m. 3.3 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 47.0 ppb (36) N/A 20.0 μg/m3 (18) 7.0 μg/m3 (29) 36.0
 
May 18, 2019, 7 p.m. 3.6 ppb (3) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 46.0 ppb (35) N/A 24.0 μg/m3 (22) 11.0 μg/m3 (46) 46.0