AQSQID: 401091037

Site Name: North Okc

Location: Edmond (University House), OK

Reporting: True, Located: True

Current AQI: 25.0

Edmond (University House) OK, US: 35.612801, -97.472198

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
April 6, 2020, 3 a.m. 2.0 ppb (2) -1.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 33.0 ppb (25) 0.3 ppb (3) 8.0 μg/m3 (7) 5.0 μg/m3 (21) 25.0
 
April 6, 2020, 2 a.m. 2.0 ppb (2) -1.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (27) 0.3 ppb (3) 8.0 μg/m3 (7) 5.1 μg/m3 (21) 27.0
 
April 6, 2020, 1 a.m. 2.0 ppb (2) -1.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 38.0 ppb (29) 0.3 ppb (3) 7.0 μg/m3 (6) 4.8 μg/m3 (20) 29.0
 
April 6, 2020, midnight 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 40.0 ppb (31) 0.3 ppb (3) 8.0 μg/m3 (7) 4.7 μg/m3 (20) 31.0
 
April 5, 2020, 11 p.m. 2.0 ppb (2) -1.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 41.0 ppb (32) 0.3 ppb (3) 8.0 μg/m3 (7) 4.9 μg/m3 (20) 32.0
 
April 5, 2020, 10 p.m. 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 40.0 ppb (31) 0.3 ppb (3) 8.0 μg/m3 (7) 4.6 μg/m3 (19) 31.0
 
April 5, 2020, 9 p.m. 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 39.0 ppb (30) 0.3 ppb (3) 10.0 μg/m3 (9) 5.7 μg/m3 (24) 30.0
 
April 5, 2020, 8 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 36.0 ppb (28) 0.3 ppb (3) 12.0 μg/m3 (11) 8.2 μg/m3 (34) 34.0
 
April 5, 2020, 7 p.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 29.0 ppb (22) 0.3 ppb (3) 18.0 μg/m3 (16) 12.7 μg/m3 (51) 51.0
 
April 5, 2020, 6 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 22.0 ppb (17) 0.3 ppb (3) 18.0 μg/m3 (16) 13.5 μg/m3 (53) 53.0
 
April 5, 2020, 5 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 18.0 ppb (14) 0.2 ppb (2) 15.0 μg/m3 (14) 11.4 μg/m3 (48) 48.0
 
April 5, 2020, 4 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 16.0 ppb (12) 0.2 ppb (2) 18.0 μg/m3 (16) 14.3 μg/m3 (55) 55.0
 
April 5, 2020, 3 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 15.0 ppb (12) 0.2 ppb (2) 16.0 μg/m3 (15) 12.1 μg/m3 (50) 50.0
 
April 5, 2020, 2 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 15.0 ppb (12) 0.2 ppb (2) 19.0 μg/m3 (17) 13.8 μg/m3 (54) 54.0
 
April 5, 2020, 1 p.m. 4.0 ppb (4) -1.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 14.0 ppb (11) 0.2 ppb (2) 17.0 μg/m3 (15) 12.5 μg/m3 (51) 51.0
 
April 5, 2020, noon 5.0 ppb (5) -1.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 13.0 ppb (10) 0.2 ppb (2) 18.0 μg/m3 (16) 13.5 μg/m3 (53) 53.0
 
April 5, 2020, 11 a.m. 4.0 ppb (4) -1.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 13.0 ppb (10) 0.2 ppb (2) 20.0 μg/m3 (18) 14.4 μg/m3 (55) 55.0
 
April 5, 2020, 10 a.m. 4.0 ppb (4) -1.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 15.0 ppb (12) 0.2 ppb (2) 19.0 μg/m3 (17) 14.5 μg/m3 (55) 55.0
 
April 5, 2020, 9 a.m. 3.0 ppb (3) -1.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 17.0 ppb (13) 0.2 ppb (2) 19.0 μg/m3 (17) 15.0 μg/m3 (56) 56.0
 
April 5, 2020, 8 a.m. 2.0 ppb (2) -1.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 19.0 ppb (15) 0.2 ppb (2) 21.0 μg/m3 (19) 16.3 μg/m3 (59) 59.0
 
April 5, 2020, 7 a.m. 4.0 ppb (4) -1.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 19.0 ppb (15) 0.3 ppb (3) 23.0 μg/m3 (21) 18.5 μg/m3 (64) 64.0
 
April 5, 2020, 6 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 19.0 ppb (15) 0.2 ppb (2) 16.0 μg/m3 (15) 12.2 μg/m3 (50) 50.0
 
April 5, 2020, 5 a.m. 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 19.0 ppb (15) 0.2 ppb (2) 14.0 μg/m3 (13) 10.5 μg/m3 (44) 44.0
 
April 5, 2020, 4 a.m. 2.0 ppb (2) -1.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 19.0 ppb (15) 0.2 ppb (2) 13.0 μg/m3 (12) 9.7 μg/m3 (40) 40.0
 
April 5, 2020, 3 a.m. 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 21.0 ppb (16) 0.2 ppb (2) 14.0 μg/m3 (13) 10.7 μg/m3 (45) 45.0
 
April 5, 2020, 2 a.m. 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 21.0 ppb (16) 0.2 ppb (2) 11.0 μg/m3 (10) 7.9 μg/m3 (33) 33.0
 
April 5, 2020, 1 a.m. 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 21.0 ppb (16) 0.2 ppb (2) 10.0 μg/m3 (9) 7.4 μg/m3 (31) 31.0
 
April 5, 2020, midnight 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 21.0 ppb (16) 0.2 ppb (2) 10.0 μg/m3 (9) 6.8 μg/m3 (28) 28.0
 
April 4, 2020, 11 p.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 21.0 ppb (16) 0.2 ppb (2) 10.0 μg/m3 (9) 7.3 μg/m3 (30) 30.0
 
April 4, 2020, 10 p.m. 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (17) 0.2 ppb (2) 11.0 μg/m3 (10) 8.6 μg/m3 (36) 36.0
 
April 4, 2020, 9 p.m. 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (17) 0.2 ppb (2) 12.0 μg/m3 (11) 8.9 μg/m3 (37) 37.0
 
April 4, 2020, 8 p.m. 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (17) 0.2 ppb (2) 12.0 μg/m3 (11) 9.7 μg/m3 (40) 40.0
 
April 4, 2020, 7 p.m. 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 21.0 ppb (16) 0.2 ppb (2) 13.0 μg/m3 (12) 10.5 μg/m3 (44) 44.0
 
April 4, 2020, 6 p.m. 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 21.0 ppb (16) 0.2 ppb (2) 12.0 μg/m3 (11) 10.0 μg/m3 (42) 42.0
 
April 4, 2020, 5 p.m. 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 21.0 ppb (16) 0.2 ppb (2) 13.0 μg/m3 (12) 10.7 μg/m3 (45) 45.0
 
April 4, 2020, 4 p.m. 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 20.0 ppb (15) 0.2 ppb (2) 11.0 μg/m3 (10) 10.1 μg/m3 (42) 42.0
 
April 4, 2020, 3 p.m. 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 20.0 ppb (15) 0.2 ppb (2) 11.0 μg/m3 (10) 9.6 μg/m3 (40) 40.0
 
April 4, 2020, 2 p.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 21.0 ppb (16) 0.2 ppb (2) 12.0 μg/m3 (11) 10.0 μg/m3 (42) 42.0
 
April 4, 2020, 1 p.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 21.0 ppb (16) 0.2 ppb (2) 13.0 μg/m3 (12) 11.4 μg/m3 (48) 48.0
 
April 4, 2020, noon 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 20.0 ppb (15) 0.2 ppb (2) 15.0 μg/m3 (14) 12.6 μg/m3 (51) 51.0
 
April 4, 2020, 11 a.m. 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 19.0 ppb (15) 0.2 ppb (2) 14.0 μg/m3 (13) 11.9 μg/m3 (50) 50.0
 
April 4, 2020, 10 a.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (17) 0.2 ppb (2) 13.0 μg/m3 (12) 11.0 μg/m3 (46) 46.0
 
April 4, 2020, 9 a.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 23.0 ppb (18) 0.2 ppb (2) 12.0 μg/m3 (11) 10.5 μg/m3 (44) 44.0
 
April 4, 2020, 8 a.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 24.0 ppb (18) 0.2 ppb (2) 12.0 μg/m3 (11) 9.3 μg/m3 (39) 39.0
 
April 4, 2020, 7 a.m. 2.0 ppb (2) -1.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 21.0 ppb (16) 0.2 ppb (2) 11.0 μg/m3 (10) 7.6 μg/m3 (32) 32.0
 
April 4, 2020, 6 a.m. 4.0 ppb (4) -1.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 18.0 ppb (14) 0.2 ppb (2) 12.0 μg/m3 (11) 7.8 μg/m3 (32) 32.0
 
April 4, 2020, 5 a.m. 4.0 ppb (4) -1.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 18.0 ppb (14) 0.2 ppb (2) 10.0 μg/m3 (9) 6.4 μg/m3 (27) 27.0
 
April 4, 2020, 4 a.m. 3.0 ppb (3) -1.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 20.0 ppb (15) 0.2 ppb (2) 11.0 μg/m3 (10) 6.5 μg/m3 (27) 27.0
 
April 4, 2020, 3 a.m. 2.0 ppb (2) -1.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 22.0 ppb (17) 0.2 ppb (2) 10.0 μg/m3 (9) 5.9 μg/m3 (25) 25.0
 
April 4, 2020, 2 a.m. 2.0 ppb (2) -1.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 23.0 ppb (18) 0.2 ppb (2) 10.0 μg/m3 (9) 5.9 μg/m3 (25) 25.0
 
April 4, 2020, 1 a.m. 2.0 ppb (2) -1.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 24.0 ppb (18) 0.2 ppb (2) 9.0 μg/m3 (8) 5.9 μg/m3 (25) 25.0
 
April 4, 2020, midnight 2.0 ppb (2) -1.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 24.0 ppb (18) 0.2 ppb (2) 11.0 μg/m3 (10) 6.8 μg/m3 (28) 28.0
 
April 3, 2020, 11 p.m. 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (19) 0.2 ppb (2) 12.0 μg/m3 (11) 6.9 μg/m3 (29) 29.0
 
April 3, 2020, 10 p.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (19) 0.2 ppb (2) N/A 6.1 μg/m3 (25) 25.0
 
April 3, 2020, 9 p.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 24.0 ppb (18) 0.2 ppb (2) 11.0 μg/m3 (10) 6.0 μg/m3 (25) 25.0
 
April 3, 2020, 8 p.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 24.0 ppb (18) 0.2 ppb (2) 11.0 μg/m3 (10) 6.1 μg/m3 (25) 25.0
 
April 3, 2020, 7 p.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 24.0 ppb (18) 0.2 ppb (2) 11.0 μg/m3 (10) 6.4 μg/m3 (27) 27.0
 
April 3, 2020, 6 p.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 23.0 ppb (18) 0.2 ppb (2) 10.0 μg/m3 (9) 6.2 μg/m3 (26) 26.0
 
April 3, 2020, 5 p.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 23.0 ppb (18) 0.2 ppb (2) 9.0 μg/m3 (8) 5.8 μg/m3 (24) 24.0
 
April 3, 2020, 4 p.m. 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (17) 0.2 ppb (2) 8.0 μg/m3 (7) 5.0 μg/m3 (21) 21.0
 
April 3, 2020, 3 p.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (17) 0.2 ppb (2) 7.0 μg/m3 (6) 4.3 μg/m3 (18) 18.0
 
April 3, 2020, 2 p.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (17) 0.2 ppb (2) 5.0 μg/m3 (5) 3.7 μg/m3 (15) 17.0
 
April 3, 2020, 1 p.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 20.0 ppb (15) 0.2 ppb (2) 3.0 μg/m3 (3) 2.3 μg/m3 (10) 15.0
 
April 3, 2020, noon 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 18.0 ppb (14) 0.2 ppb (2) 2.0 μg/m3 (2) 1.4 μg/m3 (6) 14.0
 
April 3, 2020, 11 a.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 18.0 ppb (14) 0.2 ppb (2) 2.0 μg/m3 (2) 1.4 μg/m3 (6) 14.0
 
April 3, 2020, 10 a.m. 1.0 ppb (1) -1.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 17.0 ppb (13) 0.2 ppb (2) 1.0 μg/m3 (1) 1.1 μg/m3 (5) 13.0
 
April 3, 2020, 9 a.m. 1.0 ppb (1) -1.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 17.0 ppb (13) 0.2 ppb (2) 2.0 μg/m3 (2) 1.4 μg/m3 (6) 13.0
 
April 3, 2020, 8 a.m. 1.0 ppb (1) -1.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 16.0 ppb (12) 0.2 ppb (2) 3.0 μg/m3 (3) 2.3 μg/m3 (10) 12.0
 
April 3, 2020, 7 a.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 13.0 ppb (10) 0.2 ppb (2) 16.0 μg/m3 (15) 11.4 μg/m3 (48) 48.0
 
April 3, 2020, 6 a.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 12.0 ppb (9) 0.2 ppb (2) 26.0 μg/m3 (24) 14.7 μg/m3 (56) 56.0
 
April 3, 2020, 5 a.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 12.0 ppb (9) 0.2 ppb (2) 21.0 μg/m3 (19) 7.0 μg/m3 (29) 29.0
 
April 3, 2020, 4 a.m. 3.0 ppb (3) -1.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 10.0 ppb (8) 0.2 ppb (2) 17.0 μg/m3 (15) 5.6 μg/m3 (23) 23.0
 
April 3, 2020, 3 a.m. 3.0 ppb (3) -1.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 30.0 ppb (23) 0.3 ppb (3) 9.0 μg/m3 (8) 6.5 μg/m3 (27) 27.0
 
April 3, 2020, 2 a.m. 3.0 ppb (3) -1.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 35.0 ppb (27) 0.3 ppb (3) 11.0 μg/m3 (10) 8.0 μg/m3 (33) 33.0
 
April 3, 2020, 1 a.m. 3.0 ppb (3) -1.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 39.0 ppb (30) 0.3 ppb (3) 16.0 μg/m3 (15) 9.4 μg/m3 (39) 39.0
 
April 3, 2020, midnight 3.0 ppb (3) -1.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 42.0 ppb (32) 0.3 ppb (3) 17.0 μg/m3 (15) 10.4 μg/m3 (43) 43.0
 
April 2, 2020, 11 p.m. 2.0 ppb (2) -1.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 44.0 ppb (34) 0.3 ppb (3) 18.0 μg/m3 (16) 10.4 μg/m3 (43) 43.0
 
April 2, 2020, 10 p.m. 2.0 ppb (2) -1.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 47.0 ppb (36) 0.3 ppb (3) 22.0 μg/m3 (20) 10.8 μg/m3 (45) 45.0
 
April 2, 2020, 9 p.m. 4.0 ppb (4) -1.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 42.0 ppb (32) 0.3 ppb (3) 19.0 μg/m3 (17) 9.6 μg/m3 (40) 40.0
 
April 2, 2020, 8 p.m. 3.0 ppb (3) -1.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 42.0 ppb (32) 0.3 ppb (3) 18.0 μg/m3 (16) 9.2 μg/m3 (38) 38.0
 
April 2, 2020, 7 p.m. 3.0 ppb (3) -1.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 42.0 ppb (32) 0.3 ppb (3) 20.0 μg/m3 (18) 9.2 μg/m3 (38) 38.0
 
April 2, 2020, 6 p.m. 3.0 ppb (3) -1.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 41.0 ppb (32) 0.3 ppb (3) 19.0 μg/m3 (17) 9.3 μg/m3 (39) 39.0
 
April 2, 2020, 5 p.m. 3.0 ppb (3) -1.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 40.0 ppb (31) 0.3 ppb (3) 21.0 μg/m3 (19) 9.1 μg/m3 (38) 38.0
 
April 2, 2020, 4 p.m. 3.0 ppb (3) -1.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 41.0 ppb (32) 0.3 ppb (3) 20.0 μg/m3 (18) 8.5 μg/m3 (35) 35.0
 
April 2, 2020, 3 p.m. 3.0 ppb (3) -1.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 43.0 ppb (33) 0.3 ppb (3) 22.0 μg/m3 (20) 8.2 μg/m3 (34) 34.0
 
April 2, 2020, 2 p.m. 2.0 ppb (2) -1.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 43.0 ppb (33) 0.3 ppb (3) 20.0 μg/m3 (18) 7.6 μg/m3 (32) 33.0
 
April 2, 2020, 1 p.m. 2.0 ppb (2) -1.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 42.0 ppb (32) 0.3 ppb (3) 16.0 μg/m3 (15) 7.5 μg/m3 (31) 32.0
 
April 2, 2020, noon 3.0 ppb (3) -1.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 42.0 ppb (32) 0.3 ppb (3) 15.0 μg/m3 (14) 8.0 μg/m3 (33) 33.0
 
April 2, 2020, 11 a.m. 2.0 ppb (2) -1.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 44.0 ppb (34) 0.3 ppb (3) 16.0 μg/m3 (15) 7.6 μg/m3 (32) 34.0
 
April 2, 2020, 10 a.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 46.0 ppb (35) 0.2 ppb (2) 15.0 μg/m3 (14) 7.4 μg/m3 (31) 35.0
 
April 2, 2020, 9 a.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 50.0 ppb (38) 0.2 ppb (2) 15.0 μg/m3 (14) 7.2 μg/m3 (30) 38.0
 
April 2, 2020, 8 a.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 49.0 ppb (38) 0.2 ppb (2) 15.0 μg/m3 (14) 7.5 μg/m3 (31) 38.0
 
April 2, 2020, 7 a.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 46.0 ppb (35) 0.2 ppb (2) 14.0 μg/m3 (13) 6.7 μg/m3 (28) 35.0
 
April 2, 2020, 6 a.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 43.0 ppb (33) 0.2 ppb (2) 11.0 μg/m3 (10) 5.6 μg/m3 (23) 33.0
 
April 2, 2020, 5 a.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 42.0 ppb (32) 0.2 ppb (2) 11.0 μg/m3 (10) 5.1 μg/m3 (21) 32.0
 
April 2, 2020, 4 a.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 43.0 ppb (33) 0.2 ppb (2) 10.0 μg/m3 (9) 4.7 μg/m3 (20) 33.0
 
April 2, 2020, 3 a.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 44.0 ppb (34) 0.2 ppb (2) 9.0 μg/m3 (8) 4.2 μg/m3 (18) 34.0
 
April 2, 2020, 2 a.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 46.0 ppb (35) 0.2 ppb (2) 10.0 μg/m3 (9) 4.2 μg/m3 (18) 35.0
 
April 2, 2020, 1 a.m. 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 46.0 ppb (35) 0.2 ppb (2) 10.0 μg/m3 (9) 4.3 μg/m3 (18) 35.0
 
April 2, 2020, midnight 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 51.0 ppb (39) 0.2 ppb (2) 11.0 μg/m3 (10) 4.1 μg/m3 (17) 39.0
 
April 1, 2020, 11 p.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 53.0 ppb (41) 0.3 ppb (3) 11.0 μg/m3 (10) 4.1 μg/m3 (17) 41.0
 
April 1, 2020, 10 p.m. 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 55.0 ppb (42) 0.3 ppb (3) 12.0 μg/m3 (11) 4.2 μg/m3 (18) 42.0
 
April 1, 2020, 9 p.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 52.0 ppb (40) 0.2 ppb (2) 13.0 μg/m3 (12) 4.2 μg/m3 (18) 40.0
 
April 1, 2020, 8 p.m. 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 51.0 ppb (39) 0.3 ppb (3) 11.0 μg/m3 (10) 3.7 μg/m3 (15) 39.0
 
April 1, 2020, 7 p.m. 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 51.0 ppb (39) 0.2 ppb (2) 12.0 μg/m3 (11) 3.8 μg/m3 (16) 39.0
 
April 1, 2020, 6 p.m. 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 49.0 ppb (38) 0.2 ppb (2) 11.0 μg/m3 (10) 4.0 μg/m3 (17) 38.0
 
April 1, 2020, 5 p.m. 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 48.0 ppb (37) 0.2 ppb (2) 12.0 μg/m3 (11) 4.4 μg/m3 (18) 37.0
 
April 1, 2020, 4 p.m. 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 47.0 ppb (36) 0.2 ppb (2) 14.0 μg/m3 (13) 4.3 μg/m3 (18) 36.0
 
April 1, 2020, 3 p.m. 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 44.0 ppb (34) 0.2 ppb (2) 13.0 μg/m3 (12) 4.3 μg/m3 (18) 34.0
 
April 1, 2020, 2 p.m. 8.0 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 36.0 ppb (28) 0.3 ppb (3) 13.0 μg/m3 (12) 4.9 μg/m3 (20) 28.0
 
April 1, 2020, 1 p.m. 11.0 ppb (10) 0.0 ppb (0) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 28.0 ppb (22) 0.3 ppb (3) 14.0 μg/m3 (13) 5.4 μg/m3 (23) 23.0
 
April 1, 2020, noon 9.0 ppb (8) 0.0 ppb (0) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 26.0 ppb (20) 0.3 ppb (3) 11.0 μg/m3 (10) 5.4 μg/m3 (23) 23.0
 
April 1, 2020, 11 a.m. 6.0 ppb (6) -1.0 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 26.0 ppb (20) 0.2 ppb (2) 11.0 μg/m3 (10) 5.9 μg/m3 (25) 25.0
 
April 1, 2020, 10 a.m. 6.0 ppb (6) -1.0 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 27.0 ppb (21) 0.3 ppb (3) 12.0 μg/m3 (11) 6.2 μg/m3 (26) 26.0
 
April 1, 2020, 9 a.m. 5.0 ppb (5) -1.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 29.0 ppb (22) 0.3 ppb (3) 12.0 μg/m3 (11) 6.5 μg/m3 (27) 27.0
 
April 1, 2020, 8 a.m. 6.0 ppb (6) -1.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 31.0 ppb (24) 0.3 ppb (3) 11.0 μg/m3 (10) 6.1 μg/m3 (25) 25.0
 
April 1, 2020, 7 a.m. 2.0 ppb (2) -1.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (27) 0.2 ppb (2) 10.0 μg/m3 (9) 5.5 μg/m3 (23) 27.0
 
April 1, 2020, 6 a.m. 5.0 ppb (5) -1.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 31.0 ppb (24) 0.2 ppb (2) 12.0 μg/m3 (11) 6.7 μg/m3 (28) 28.0
 
April 1, 2020, 5 a.m. 6.0 ppb (6) -1.0 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 28.0 ppb (22) 0.3 ppb (3) 12.0 μg/m3 (11) 7.5 μg/m3 (31) 31.0
 
April 1, 2020, 4 a.m. 8.0 ppb (7) -1.0 ppb (0) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 30.0 ppb (23) 0.3 ppb (3) 14.0 μg/m3 (13) 9.1 μg/m3 (38) 38.0
 
April 1, 2020, 3 a.m. 6.0 ppb (6) -1.0 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 34.0 ppb (26) 0.3 ppb (3) 13.0 μg/m3 (12) 7.7 μg/m3 (32) 32.0
 
April 1, 2020, 2 a.m. 9.0 ppb (8) -1.0 ppb (0) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 34.0 ppb (26) 0.3 ppb (3) 12.0 μg/m3 (11) 7.3 μg/m3 (30) 30.0
 
April 1, 2020, 1 a.m. 8.0 ppb (7) -1.0 ppb (0) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 41.0 ppb (32) 0.3 ppb (3) 10.0 μg/m3 (9) 6.0 μg/m3 (25) 32.0
 
April 1, 2020, midnight 2.0 ppb (2) -1.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 52.0 ppb (40) 0.2 ppb (2) 9.0 μg/m3 (8) 4.9 μg/m3 (20) 40.0
 
March 31, 2020, 11 p.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 53.0 ppb (41) 0.2 ppb (2) 9.0 μg/m3 (8) 4.9 μg/m3 (20) 41.0
 
March 31, 2020, 10 p.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 54.0 ppb (42) 0.2 ppb (2) 9.0 μg/m3 (8) 5.0 μg/m3 (21) 42.0
 
March 31, 2020, 9 p.m. 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 53.0 ppb (41) 0.2 ppb (2) 7.0 μg/m3 (6) 4.7 μg/m3 (20) 41.0
 
March 31, 2020, 8 p.m. 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 53.0 ppb (41) 0.2 ppb (2) 8.0 μg/m3 (7) 4.5 μg/m3 (19) 41.0
 
March 31, 2020, 7 p.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 51.0 ppb (39) 0.2 ppb (2) 7.0 μg/m3 (6) 4.5 μg/m3 (19) 39.0
 
March 31, 2020, 6 p.m. 1.0 ppb (1) -1.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 51.0 ppb (39) 0.2 ppb (2) 7.0 μg/m3 (6) 4.4 μg/m3 (18) 39.0
 
March 31, 2020, 5 p.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 50.0 ppb (38) 0.2 ppb (2) 7.0 μg/m3 (6) 4.3 μg/m3 (18) 38.0
 
March 31, 2020, 4 p.m. 1.0 ppb (1) -1.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 48.0 ppb (37) 0.2 ppb (2) 8.0 μg/m3 (7) 4.4 μg/m3 (18) 37.0
 
March 31, 2020, 3 p.m. 1.0 ppb (1) -1.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 46.0 ppb (35) 0.2 ppb (2) 8.0 μg/m3 (7) 5.0 μg/m3 (21) 35.0
 
March 31, 2020, 2 p.m. 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 41.0 ppb (32) 0.2 ppb (2) 10.0 μg/m3 (9) 6.6 μg/m3 (28) 32.0
 
March 31, 2020, 1 p.m. 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 38.0 ppb (29) 0.2 ppb (2) 10.0 μg/m3 (9) 7.4 μg/m3 (31) 31.0
 
March 31, 2020, noon 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 39.0 ppb (30) 0.2 ppb (2) 10.0 μg/m3 (9) 7.3 μg/m3 (30) 30.0
 
March 31, 2020, 11 a.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 39.0 ppb (30) 0.2 ppb (2) 9.0 μg/m3 (8) 6.3 μg/m3 (26) 30.0
 
March 31, 2020, 10 a.m. 1.0 ppb (1) -1.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (30) 0.2 ppb (2) 9.0 μg/m3 (8) 5.8 μg/m3 (24) 30.0
 
March 31, 2020, 9 a.m. 1.0 ppb (1) -1.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (31) 0.2 ppb (2) 9.0 μg/m3 (8) 5.8 μg/m3 (24) 31.0
 
March 31, 2020, 8 a.m. 1.0 ppb (1) -1.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (31) 0.2 ppb (2) 9.0 μg/m3 (8) 5.8 μg/m3 (24) 31.0
 
March 31, 2020, 7 a.m. 1.0 ppb (1) -1.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (30) 0.2 ppb (2) 8.0 μg/m3 (7) 5.2 μg/m3 (22) 30.0
 
March 31, 2020, 6 a.m. 1.0 ppb (1) -1.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 41.0 ppb (32) 0.2 ppb (2) 5.0 μg/m3 (5) 3.5 μg/m3 (15) 32.0
 
March 31, 2020, 5 a.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 41.0 ppb (32) 0.2 ppb (2) 4.0 μg/m3 (4) 3.1 μg/m3 (13) 32.0
 
March 31, 2020, 4 a.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 39.0 ppb (30) 0.2 ppb (2) 7.0 μg/m3 (6) 3.9 μg/m3 (16) 30.0
 
March 31, 2020, 3 a.m. 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 41.0 ppb (32) 0.2 ppb (2) 7.0 μg/m3 (6) 3.9 μg/m3 (16) 32.0
 
March 31, 2020, 2 a.m. 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 42.0 ppb (32) 0.2 ppb (2) 7.0 μg/m3 (6) 3.9 μg/m3 (16) 32.0
 
March 31, 2020, 1 a.m. 1.0 ppb (1) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 44.0 ppb (34) 0.2 ppb (2) 5.0 μg/m3 (5) 3.4 μg/m3 (14) 34.0
 
March 31, 2020, midnight 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 45.0 ppb (35) 0.2 ppb (2) 5.0 μg/m3 (5) 3.4 μg/m3 (14) 35.0
 
March 30, 2020, 11 p.m. 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 47.0 ppb (36) 0.2 ppb (2) 7.0 μg/m3 (6) 3.7 μg/m3 (15) 36.0
 
March 30, 2020, 10 p.m. 2.0 ppb (2) -1.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 47.0 ppb (36) 0.2 ppb (2) 8.0 μg/m3 (7) 4.5 μg/m3 (19) 36.0
 
March 30, 2020, 9 p.m. 3.0 ppb (3) -1.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 48.0 ppb (37) 0.2 ppb (2) 9.0 μg/m3 (8) 4.4 μg/m3 (18) 37.0
 
March 30, 2020, 8 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 47.0 ppb (36) 0.2 ppb (2) 9.0 μg/m3 (8) 4.9 μg/m3 (20) 36.0
 
March 30, 2020, 7 p.m. 3.0 ppb (3) -1.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 43.0 ppb (33) 0.2 ppb (2) 11.0 μg/m3 (10) 6.1 μg/m3 (25) 33.0
 
March 30, 2020, 6 p.m. 6.0 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 38.0 ppb (29) 0.3 ppb (3) 16.0 μg/m3 (15) 6.3 μg/m3 (26) 29.0
 
March 30, 2020, 5 p.m. 7.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 38.0 ppb (29) 0.3 ppb (3) 21.0 μg/m3 (19) 5.9 μg/m3 (25) 29.0
 
March 30, 2020, 4 p.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 40.0 ppb (31) 0.2 ppb (2) 21.0 μg/m3 (19) 6.2 μg/m3 (26) 31.0
 
March 30, 2020, 3 p.m. 5.0 ppb (5) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 37.0 ppb (28) 0.3 ppb (3) 24.0 μg/m3 (22) 8.3 μg/m3 (35) 35.0
 
March 30, 2020, 2 p.m. 9.0 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 29.0 ppb (22) 0.3 ppb (3) 27.0 μg/m3 (25) 12.2 μg/m3 (50) 50.0
 
March 30, 2020, 1 p.m. 9.0 ppb (8) 0.0 ppb (0) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 25.0 ppb (19) 0.4 ppb (4) 30.0 μg/m3 (27) 15.5 μg/m3 (57) 57.0
 
March 30, 2020, noon 7.0 ppb (6) -1.0 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 27.0 ppb (21) 0.3 ppb (3) 29.0 μg/m3 (26) 17.0 μg/m3 (61) 61.0
 
March 30, 2020, 11 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 26.0 ppb (20) 0.3 ppb (3) 31.0 μg/m3 (28) 18.5 μg/m3 (64) 64.0
 
March 30, 2020, 10 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 25.0 ppb (19) 0.3 ppb (3) 30.0 μg/m3 (27) 18.4 μg/m3 (64) 64.0
 
March 30, 2020, 9 a.m. 4.0 ppb (4) -1.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 25.0 ppb (19) 0.3 ppb (3) 29.0 μg/m3 (26) 16.8 μg/m3 (60) 60.0
 
March 30, 2020, 8 a.m. 6.0 ppb (6) -1.0 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 26.0 ppb (20) 0.4 ppb (4) 28.0 μg/m3 (25) 17.8 μg/m3 (62) 62.0
 
March 30, 2020, 7 a.m. 6.0 ppb (6) -1.0 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 35.0 ppb (27) 0.3 ppb (3) 28.0 μg/m3 (25) 15.5 μg/m3 (57) 57.0
 
March 30, 2020, 6 a.m. 6.0 ppb (6) -1.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 36.0 ppb (28) 0.3 ppb (3) 29.0 μg/m3 (26) 18.1 μg/m3 (63) 63.0
 
March 30, 2020, 5 a.m. 5.0 ppb (5) -1.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 34.0 ppb (26) 0.3 ppb (3) 30.0 μg/m3 (27) 18.8 μg/m3 (64) 64.0
 
March 30, 2020, 4 a.m. 5.0 ppb (5) -1.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 38.0 ppb (29) 0.3 ppb (3) 28.0 μg/m3 (25) 17.0 μg/m3 (61) 61.0