AQSQID: 060250005

Site Name: Calexico - Ethel Street

Location: Calexico, CA

Reporting: True, Located: True

Current AQI: 29.0

Calexico CA, US: 32.676102, -115.483299

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 21, 2019, 9 a.m. 4.9 ppb (5) -0.1 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 37.0 ppb (28) 0.16 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 21, 2019, 8 a.m. 19.4 ppb (18) 0.5 ppb (0) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 15.0 ppb (12) 0.4 ppb (4) 74.0 μg/m3 (60) 16.0 μg/m3 (59) 60.0
 
Sept. 21, 2019, 7 a.m. 27.0 ppb (25) 1.7 ppb (2) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 12.0 ppb (9) 0.54 ppb (6) 100.0 μg/m3 (72) 24.0 μg/m3 (76) 76.0
 
Sept. 21, 2019, 6 a.m. 52.5 ppb (49) 17.0 ppb (16) N/A 36.0 ppb (33) N/A 0.0 ppb (0) 4.0 ppb (3) 0.98 ppb (11) 161.0 μg/m3 (103) 37.0 μg/m3 (104) 104.0
 
Sept. 21, 2019, 5 a.m. 47.8 ppb (44) 9.1 ppb (8) N/A 39.0 ppb (36) N/A 0.0 ppb (0) 4.0 ppb (3) 0.99 ppb (11) 154.0 μg/m3 (100) 34.0 μg/m3 (97) 100.0
 
Sept. 21, 2019, 4 a.m. 21.6 ppb (20) 1.5 ppb (1) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 21.0 ppb (16) 0.45 ppb (5) 154.0 μg/m3 (100) 34.0 μg/m3 (97) 100.0
 
Sept. 21, 2019, 3 a.m. 14.6 ppb (14) 0.3 ppb (0) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 35.0 ppb (27) 0.25 ppb (3) 61.0 μg/m3 (53) 7.0 μg/m3 (29) 53.0
 
Sept. 21, 2019, 2 a.m. 12.1 ppb (11) 0.1 ppb (0) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 41.0 ppb (32) 0.22 ppb (2) 62.0 μg/m3 (54) 10.0 μg/m3 (42) 54.0
 
Sept. 21, 2019, 1 a.m. 4.4 ppb (4) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 56.0 ppb (43) 0.12 ppb (1) 38.0 μg/m3 (35) 5.0 μg/m3 (21) 43.0
 
Sept. 21, 2019, midnight 2.3 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 61.0 ppb (47) 0.09 ppb (1) 30.0 μg/m3 (27) 2.0 μg/m3 (8) 47.0
 
Sept. 20, 2019, 11 p.m. 2.3 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 61.0 ppb (47) 0.1 ppb (1) 35.0 μg/m3 (32) 5.0 μg/m3 (21) 47.0
 
Sept. 20, 2019, 10 p.m. 2.9 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 61.0 ppb (47) 0.11 ppb (1) 35.0 μg/m3 (32) 7.0 μg/m3 (29) 47.0
 
Sept. 20, 2019, 9 p.m. 3.1 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 59.0 ppb (45) 0.11 ppb (1) 39.0 μg/m3 (35) 3.0 μg/m3 (12) 45.0
 
Sept. 20, 2019, 8 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 59.0 ppb (45) 0.1 ppb (1) 33.0 μg/m3 (30) 4.0 μg/m3 (17) 45.0
 
Sept. 20, 2019, 7 p.m. 2.0 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 56.0 ppb (43) 0.1 ppb (1) 30.0 μg/m3 (27) 6.0 μg/m3 (25) 43.0
 
Sept. 20, 2019, 6 p.m. 2.6 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 54.0 ppb (42) 0.11 ppb (1) 37.0 μg/m3 (34) 6.0 μg/m3 (25) 42.0
 
Sept. 20, 2019, 5 p.m. 2.5 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 50.0 ppb (38) 0.1 ppb (1) 24.0 μg/m3 (22) 4.0 μg/m3 (17) 38.0
 
Sept. 20, 2019, 4 p.m. 5.7 ppb (5) 1.2 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 41.0 ppb (32) 0.12 ppb (1) 43.0 μg/m3 (39) 4.0 μg/m3 (17) 39.0
 
Sept. 20, 2019, 3 p.m. 12.2 ppb (11) 2.8 ppb (3) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 31.0 ppb (24) 0.2 ppb (2) 60.0 μg/m3 (52) 5.0 μg/m3 (21) 52.0
 
Sept. 20, 2019, 2 p.m. 17.9 ppb (17) 4.0 ppb (4) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 21.0 ppb (16) 0.27 ppb (3) 82.0 μg/m3 (64) 6.0 μg/m3 (25) 64.0
 
Sept. 20, 2019, 1 p.m. 15.4 ppb (14) 3.6 ppb (3) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 17.0 ppb (13) 0.57 ppb (6) 145.0 μg/m3 (95) 17.0 μg/m3 (61) 95.0
 
Sept. 20, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 2.0 μg/m3 (8) 13.0
 
Sept. 20, 2019, 11 a.m. 2.4 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (25) 0.09 ppb (1) 10.0 μg/m3 (9) 1.0 μg/m3 (4) 25.0
 
Sept. 20, 2019, 10 a.m. 1.8 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (25) 0.08 ppb (1) 10.0 μg/m3 (9) N/A 25.0
 
Sept. 20, 2019, 9 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (24) 0.07 ppb (1) 12.0 μg/m3 (11) N/A 24.0
 
Sept. 20, 2019, 8 a.m. 1.9 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (20) 0.07 ppb (1) 21.0 μg/m3 (19) N/A 20.0
 
Sept. 20, 2019, 7 a.m. 1.3 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (21) 0.07 ppb (1) 39.0 μg/m3 (35) 0.0 μg/m3 (0) 35.0
 
Sept. 20, 2019, 6 a.m. 2.0 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (20) 0.08 ppb (1) 23.0 μg/m3 (21) 0.0 μg/m3 (0) 21.0
 
Sept. 20, 2019, 5 a.m. 3.2 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (21) 0.09 ppb (1) 25.0 μg/m3 (23) 0.0 μg/m3 (0) 23.0
 
Sept. 20, 2019, 4 a.m. 3.5 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (22) 0.09 ppb (1) 59.0 μg/m3 (52) 6.0 μg/m3 (25) 52.0
 
Sept. 20, 2019, 3 a.m. 2.6 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (25) 0.09 ppb (1) 274.0 μg/m3 (160) 12.0 μg/m3 (50) 160.0
 
Sept. 20, 2019, 2 a.m. 3.0 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (25) 0.1 ppb (1) 199.0 μg/m3 (122) 13.0 μg/m3 (52) 122.0
 
Sept. 20, 2019, 1 a.m. 3.2 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 38.0 ppb (29) 0.09 ppb (1) 58.0 μg/m3 (52) 10.0 μg/m3 (42) 52.0
 
Sept. 20, 2019, midnight 3.0 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 44.0 ppb (34) 0.1 ppb (1) 50.0 μg/m3 (45) 5.0 μg/m3 (21) 45.0
 
Sept. 19, 2019, 11 p.m. 2.4 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 49.0 ppb (38) 0.1 ppb (1) 55.0 μg/m3 (50) 4.0 μg/m3 (17) 50.0
 
Sept. 19, 2019, 10 p.m. 3.0 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 42.0 ppb (32) 0.09 ppb (1) 77.0 μg/m3 (61) 2.0 μg/m3 (8) 61.0
 
Sept. 19, 2019, 9 p.m. 2.6 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (30) 0.07 ppb (1) 36.0 μg/m3 (33) 2.0 μg/m3 (8) 33.0
 
Sept. 19, 2019, 8 p.m. 1.3 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 38.0 ppb (29) 0.06 ppb (1) 23.0 μg/m3 (21) 1.0 μg/m3 (4) 29.0
 
Sept. 19, 2019, 7 p.m. 2.0 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (32) 0.07 ppb (1) 20.0 μg/m3 (18) 1.0 μg/m3 (4) 32.0
 
Sept. 19, 2019, 6 p.m. 1.2 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 44.0 ppb (34) 0.09 ppb (1) 30.0 μg/m3 (27) 2.0 μg/m3 (8) 34.0
 
Sept. 19, 2019, 5 p.m. 1.4 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 44.0 ppb (34) 0.07 ppb (1) 47.0 μg/m3 (43) 0.0 μg/m3 (0) 43.0
 
Sept. 19, 2019, 4 p.m. 3.9 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 43.0 ppb (33) 0.09 ppb (1) 29.0 μg/m3 (26) 1.0 μg/m3 (4) 33.0
 
Sept. 19, 2019, 3 p.m. 14.6 ppb (14) 3.0 ppb (3) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 37.0 ppb (28) 0.23 ppb (3) 51.0 μg/m3 (46) 6.0 μg/m3 (25) 46.0
 
Sept. 19, 2019, 2 p.m. 32.9 ppb (30) 11.8 ppb (11) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 21.0 ppb (16) 0.42 ppb (5) 103.0 μg/m3 (74) 9.0 μg/m3 (38) 74.0
 
Sept. 19, 2019, 1 p.m. 7.7 ppb (7) 0.4 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 37.0 ppb (28) 0.22 ppb (2) 52.0 μg/m3 (47) 4.0 μg/m3 (17) 47.0
 
Sept. 19, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (26) 4.0 μg/m3 (17) 26.0
 
Sept. 19, 2019, 11 a.m. 2.1 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 43.0 ppb (33) 0.12 ppb (1) 22.0 μg/m3 (20) 4.0 μg/m3 (17) 33.0
 
Sept. 19, 2019, 10 a.m. 2.5 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 42.0 ppb (32) 0.11 ppb (1) 41.0 μg/m3 (37) 3.0 μg/m3 (12) 37.0
 
Sept. 19, 2019, 9 a.m. 2.2 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 44.0 ppb (34) 0.11 ppb (1) 24.0 μg/m3 (22) 2.0 μg/m3 (8) 34.0
 
Sept. 19, 2019, 8 a.m. 1.6 ppb (1) -0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 45.0 ppb (35) 0.11 ppb (1) 18.0 μg/m3 (16) 1.0 μg/m3 (4) 35.0
 
Sept. 19, 2019, 7 a.m. 1.9 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 45.0 ppb (35) 0.11 ppb (1) 28.0 μg/m3 (25) 2.0 μg/m3 (8) 35.0
 
Sept. 19, 2019, 6 a.m. 2.0 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 45.0 ppb (35) 0.1 ppb (1) 21.0 μg/m3 (19) 2.0 μg/m3 (8) 35.0
 
Sept. 19, 2019, 5 a.m. 2.5 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 46.0 ppb (35) 0.11 ppb (1) 34.0 μg/m3 (31) 3.0 μg/m3 (12) 35.0
 
Sept. 19, 2019, 4 a.m. 3.4 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 47.0 ppb (36) 0.12 ppb (1) 42.0 μg/m3 (38) 3.0 μg/m3 (12) 38.0
 
Sept. 19, 2019, 3 a.m. 4.1 ppb (4) -0.2 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 51.0 ppb (39) 0.13 ppb (1) 38.0 μg/m3 (35) 4.0 μg/m3 (17) 39.0
 
Sept. 19, 2019, 2 a.m. 4.3 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 56.0 ppb (43) 0.14 ppb (2) 61.0 μg/m3 (53) 6.0 μg/m3 (25) 53.0
 
Sept. 19, 2019, 1 a.m. 3.6 ppb (3) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 65.0 ppb (50) 0.15 ppb (2) 79.0 μg/m3 (62) 2.0 μg/m3 (8) 62.0
 
Sept. 19, 2019, midnight 4.3 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 73.0 ppb (57) 0.13 ppb (1) 44.0 μg/m3 (40) -1.0 μg/m3 (0) 57.0
 
Sept. 18, 2019, 11 p.m. 3.4 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 68.0 ppb (52) 0.12 ppb (1) 33.0 μg/m3 (30) 0.0 μg/m3 (0) 52.0
 
Sept. 18, 2019, 10 p.m. 4.1 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 62.0 ppb (48) 0.11 ppb (1) 22.0 μg/m3 (20) 0.0 μg/m3 (0) 48.0
 
Sept. 18, 2019, 9 p.m. 3.2 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 55.0 ppb (42) 0.09 ppb (1) 19.0 μg/m3 (17) 1.0 μg/m3 (4) 42.0
 
Sept. 18, 2019, 8 p.m. 2.9 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 52.0 ppb (40) 0.08 ppb (1) 25.0 μg/m3 (23) 2.0 μg/m3 (8) 40.0
 
Sept. 18, 2019, 7 p.m. 3.7 ppb (3) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 50.0 ppb (38) 0.09 ppb (1) 29.0 μg/m3 (26) 1.0 μg/m3 (4) 38.0
 
Sept. 18, 2019, 6 p.m. 4.5 ppb (4) 0.7 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 48.0 ppb (37) 0.1 ppb (1) 36.0 μg/m3 (33) -1.0 μg/m3 (0) 37.0
 
Sept. 18, 2019, 5 p.m. 4.9 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 43.0 ppb (33) 0.1 ppb (1) 43.0 μg/m3 (39) 1.0 μg/m3 (4) 39.0
 
Sept. 18, 2019, 4 p.m. 5.7 ppb (5) 1.1 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 39.0 ppb (30) 0.11 ppb (1) 38.0 μg/m3 (35) 3.0 μg/m3 (12) 35.0
 
Sept. 18, 2019, 3 p.m. 8.3 ppb (8) 1.9 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 35.0 ppb (27) 0.14 ppb (2) 27.0 μg/m3 (25) 5.0 μg/m3 (21) 27.0
 
Sept. 18, 2019, 2 p.m. 23.9 ppb (22) 7.9 ppb (7) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 18.0 ppb (14) 0.62 ppb (7) 56.0 μg/m3 (50) 7.0 μg/m3 (29) 50.0
 
Sept. 18, 2019, 1 p.m. 32.0 ppb (30) 13.1 ppb (12) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 8.0 ppb (6) 0.45 ppb (5) 98.0 μg/m3 (72) 10.0 μg/m3 (42) 72.0
 
Sept. 18, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (21) 2.0 μg/m3 (8) 21.0
 
Sept. 18, 2019, 11 a.m. 7.0 ppb (6) 1.9 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 22.0 ppb (17) 0.1 ppb (1) 42.0 μg/m3 (38) 2.0 μg/m3 (8) 38.0
 
Sept. 18, 2019, 10 a.m. 4.5 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 26.0 ppb (20) 0.09 ppb (1) 13.0 μg/m3 (12) 3.0 μg/m3 (12) 20.0
 
Sept. 18, 2019, 9 a.m. 2.1 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (25) 0.07 ppb (1) 16.0 μg/m3 (15) 2.0 μg/m3 (8) 25.0
 
Sept. 18, 2019, 8 a.m. 1.6 ppb (1) -0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) 0.07 ppb (1) 13.0 μg/m3 (12) 1.0 μg/m3 (4) 27.0
 
Sept. 18, 2019, 7 a.m. 1.2 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (28) 0.07 ppb (1) 16.0 μg/m3 (15) 3.0 μg/m3 (12) 28.0
 
Sept. 18, 2019, 6 a.m. 1.8 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (28) 0.08 ppb (1) 24.0 μg/m3 (22) 2.0 μg/m3 (8) 28.0
 
Sept. 18, 2019, 5 a.m. 2.9 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 36.0 ppb (28) 0.1 ppb (1) 26.0 μg/m3 (24) 2.0 μg/m3 (8) 28.0
 
Sept. 18, 2019, 4 a.m. 3.6 ppb (3) -0.3 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 36.0 ppb (28) 0.1 ppb (1) 36.0 μg/m3 (33) 2.0 μg/m3 (8) 33.0
 
Sept. 18, 2019, 3 a.m. 3.7 ppb (3) 0.1 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 34.0 ppb (26) 0.1 ppb (1) 25.0 μg/m3 (23) 3.0 μg/m3 (12) 26.0
 
Sept. 18, 2019, 2 a.m. 2.1 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (28) 0.08 ppb (1) 29.0 μg/m3 (26) 4.0 μg/m3 (17) 28.0
 
Sept. 18, 2019, 1 a.m. 2.1 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (31) 0.08 ppb (1) 67.0 μg/m3 (56) 3.0 μg/m3 (12) 56.0
 
Sept. 18, 2019, midnight 1.9 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 49.0 ppb (38) 0.09 ppb (1) 70.0 μg/m3 (58) 5.0 μg/m3 (21) 58.0
 
Sept. 17, 2019, 11 p.m. 2.3 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.08 ppb (1) 106.0 μg/m3 (76) 8.0 μg/m3 (33) 76.0
 
Sept. 17, 2019, 10 p.m. 2.9 ppb (3) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 47.0 ppb (36) 0.09 ppb (1) 176.0 μg/m3 (110) 8.0 μg/m3 (33) 110.0
 
Sept. 17, 2019, 9 p.m. 2.5 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 47.0 ppb (36) 0.07 ppb (1) 61.0 μg/m3 (53) -3.0 μg/m3 (0) 53.0
 
Sept. 17, 2019, 8 p.m. 1.7 ppb (2) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 53.0 ppb (41) 0.06 ppb (1) 21.0 μg/m3 (19) -1.0 μg/m3 (0) 41.0
 
Sept. 17, 2019, 7 p.m. 2.4 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 53.0 ppb (41) 0.07 ppb (1) 23.0 μg/m3 (21) 1.0 μg/m3 (4) 41.0
 
Sept. 17, 2019, 6 p.m. 2.6 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 47.0 ppb (36) 0.08 ppb (1) 46.0 μg/m3 (42) 1.0 μg/m3 (4) 42.0
 
Sept. 17, 2019, 5 p.m. 5.6 ppb (5) 1.1 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 43.0 ppb (33) 0.12 ppb (1) 39.0 μg/m3 (35) 2.0 μg/m3 (8) 35.0
 
Sept. 17, 2019, 4 p.m. 7.9 ppb (7) 1.3 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 41.0 ppb (32) 0.13 ppb (1) 32.0 μg/m3 (29) 3.0 μg/m3 (12) 32.0
 
Sept. 17, 2019, 3 p.m. 16.5 ppb (15) 4.3 ppb (4) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 27.0 ppb (21) 0.22 ppb (2) 50.0 μg/m3 (45) 7.0 μg/m3 (29) 45.0
 
Sept. 17, 2019, 2 p.m. 41.6 ppb (39) 20.9 ppb (19) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 7.0 ppb (5) 0.42 ppb (5) 166.0 μg/m3 (106) 14.0 μg/m3 (54) 106.0
 
Sept. 17, 2019, 1 p.m. 34.1 ppb (32) 13.8 ppb (13) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 3.0 ppb (2) 0.54 ppb (6) 276.0 μg/m3 (160) 23.0 μg/m3 (73) 160.0
 
Sept. 17, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 78.0 μg/m3 (62) 7.0 μg/m3 (29) 62.0
 
Sept. 17, 2019, 11 a.m. 8.9 ppb (8) 1.0 ppb (1) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 16.0 ppb (12) 0.15 ppb (2) 64.0 μg/m3 (54) 10.0 μg/m3 (42) 54.0
 
Sept. 17, 2019, 10 a.m. 13.6 ppb (13) 2.1 ppb (2) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 13.0 ppb (10) 0.18 ppb (2) 74.0 μg/m3 (60) 12.0 μg/m3 (50) 60.0
 
Sept. 17, 2019, 9 a.m. 13.5 ppb (12) 1.1 ppb (1) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 15.0 ppb (12) 0.17 ppb (2) 40.0 μg/m3 (36) 3.0 μg/m3 (12) 36.0
 
Sept. 17, 2019, 8 a.m. 4.3 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (22) 0.07 ppb (1) 25.0 μg/m3 (23) 1.0 μg/m3 (4) 23.0
 
Sept. 17, 2019, 7 a.m. 2.7 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (30) 0.07 ppb (1) 20.0 μg/m3 (18) 2.0 μg/m3 (8) 30.0
 
Sept. 17, 2019, 6 a.m. 1.4 ppb (1) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (34) 0.05 ppb (1) 21.0 μg/m3 (19) 4.0 μg/m3 (17) 34.0
 
Sept. 17, 2019, 5 a.m. 1.6 ppb (1) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (34) 0.06 ppb (1) 23.0 μg/m3 (21) 2.0 μg/m3 (8) 34.0
 
Sept. 17, 2019, 4 a.m. 1.9 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) N/A 30.0 μg/m3 (27) 1.0 μg/m3 (4) 35.0
 
Sept. 17, 2019, 3 a.m. 2.0 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (33) 0.07 ppb (1) 62.0 μg/m3 (54) 5.0 μg/m3 (21) 54.0
 
Sept. 17, 2019, 2 a.m. 1.9 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (33) 0.06 ppb (1) 84.0 μg/m3 (64) 7.0 μg/m3 (29) 64.0
 
Sept. 17, 2019, 1 a.m. 1.9 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 43.0 ppb (33) 0.07 ppb (1) 127.0 μg/m3 (86) 5.0 μg/m3 (21) 86.0
 
Sept. 17, 2019, midnight 1.7 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 51.0 ppb (39) 0.07 ppb (1) 73.0 μg/m3 (59) 6.0 μg/m3 (25) 59.0
 
Sept. 16, 2019, 11 p.m. 2.0 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 57.0 ppb (44) 0.08 ppb (1) 176.0 μg/m3 (110) 8.0 μg/m3 (33) 110.0
 
Sept. 16, 2019, 10 p.m. 5.6 ppb (5) 0.9 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 56.0 ppb (43) 0.11 ppb (1) 42.0 μg/m3 (38) 5.0 μg/m3 (21) 43.0
 
Sept. 16, 2019, 9 p.m. 5.5 ppb (5) 0.7 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 58.0 ppb (45) 0.13 ppb (1) 41.0 μg/m3 (37) 8.0 μg/m3 (33) 45.0
 
Sept. 16, 2019, 8 p.m. 5.2 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 52.0 ppb (40) 0.11 ppb (1) 39.0 μg/m3 (35) 6.0 μg/m3 (25) 40.0
 
Sept. 16, 2019, 7 p.m. 3.5 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 47.0 ppb (36) 0.09 ppb (1) 43.0 μg/m3 (39) 6.0 μg/m3 (25) 39.0
 
Sept. 16, 2019, 6 p.m. 4.7 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 42.0 ppb (32) 0.11 ppb (1) 48.0 μg/m3 (44) 9.0 μg/m3 (38) 44.0
 
Sept. 16, 2019, 5 p.m. 8.2 ppb (8) 3.0 ppb (3) N/A 5.0 ppb (5) N/A N/A 34.0 ppb (26) 0.13 ppb (1) 36.0 μg/m3 (33) 8.0 μg/m3 (33) 33.0
 
Sept. 16, 2019, 4 p.m. 7.3 ppb (7) 2.2 ppb (2) N/A 5.0 ppb (5) N/A N/A 23.0 ppb (18) 0.17 ppb (2) 32.0 μg/m3 (29) 11.0 μg/m3 (46) 46.0
 
Sept. 16, 2019, 3 p.m. 10.1 ppb (9) 3.8 ppb (4) N/A 6.0 ppb (6) N/A N/A 15.0 ppb (12) 0.23 ppb (3) 32.0 μg/m3 (29) 7.0 μg/m3 (29) 29.0
 
Sept. 16, 2019, 2 p.m. 13.3 ppb (12) 4.2 ppb (4) N/A 9.0 ppb (8) N/A N/A 9.0 ppb (7) 0.22 ppb (2) 29.0 μg/m3 (26) 7.0 μg/m3 (29) 29.0
 
Sept. 16, 2019, 1 p.m. 9.8 ppb (9) 2.8 ppb (3) N/A 7.0 ppb (6) N/A N/A 11.0 ppb (8) 0.2 ppb (2) 50.0 μg/m3 (45) 10.0 μg/m3 (42) 45.0
 
Sept. 16, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (29) 11.0 μg/m3 (46) 46.0
 
Sept. 16, 2019, 11 a.m. 4.9 ppb (5) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 10.0 ppb (8) 0.15 ppb (2) 22.0 μg/m3 (20) 8.0 μg/m3 (33) 33.0
 
Sept. 16, 2019, 10 a.m. 4.7 ppb (4) 1.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 12.0 ppb (9) 0.14 ppb (2) 33.0 μg/m3 (30) 7.0 μg/m3 (29) 30.0
 
Sept. 16, 2019, 9 a.m. 4.4 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 11.0 ppb (8) 0.13 ppb (1) 35.0 μg/m3 (32) 11.0 μg/m3 (46) 46.0
 
Sept. 16, 2019, 8 a.m. 5.3 ppb (5) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 10.0 ppb (8) 0.12 ppb (1) 33.0 μg/m3 (30) 7.0 μg/m3 (29) 30.0
 
Sept. 16, 2019, 7 a.m. 5.9 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 16.0 ppb (12) 0.13 ppb (1) 30.0 μg/m3 (27) 6.0 μg/m3 (25) 27.0
 
Sept. 16, 2019, 6 a.m. 6.5 ppb (6) 0.1 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 21.0 ppb (16) 0.15 ppb (2) 40.0 μg/m3 (36) 6.0 μg/m3 (25) 36.0
 
Sept. 16, 2019, 5 a.m. 6.7 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 26.0 ppb (20) 0.14 ppb (2) 22.0 μg/m3 (20) 8.0 μg/m3 (33) 33.0
 
Sept. 16, 2019, 4 a.m. 14.0 ppb (13) 1.9 ppb (2) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 14.0 ppb (11) 0.22 ppb (2) 62.0 μg/m3 (54) 10.0 μg/m3 (42) 54.0
 
Sept. 16, 2019, 3 a.m. 6.4 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 24.0 ppb (18) 0.17 ppb (2) 57.0 μg/m3 (51) 7.0 μg/m3 (29) 51.0
 
Sept. 16, 2019, 2 a.m. 7.9 ppb (7) 0.7 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 26.0 ppb (20) 0.15 ppb (2) 52.0 μg/m3 (47) 7.0 μg/m3 (29) 47.0
 
Sept. 16, 2019, 1 a.m. 8.8 ppb (8) 1.5 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 26.0 ppb (20) 0.12 ppb (1) 53.0 μg/m3 (48) 5.0 μg/m3 (21) 48.0
 
Sept. 16, 2019, midnight 4.7 ppb (4) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 34.0 ppb (26) 0.12 ppb (1) 46.0 μg/m3 (42) 4.0 μg/m3 (17) 42.0
 
Sept. 15, 2019, 11 p.m. 3.2 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 42.0 ppb (32) 0.1 ppb (1) 37.0 μg/m3 (34) 6.0 μg/m3 (25) 34.0
 
Sept. 15, 2019, 10 p.m. 2.9 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 44.0 ppb (34) 0.1 ppb (1) 40.0 μg/m3 (36) 6.0 μg/m3 (25) 36.0
 
Sept. 15, 2019, 9 p.m. 3.1 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 44.0 ppb (34) 0.1 ppb (1) 36.0 μg/m3 (33) 6.0 μg/m3 (25) 34.0
 
Sept. 15, 2019, 8 p.m. 2.8 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 44.0 ppb (34) 0.09 ppb (1) 30.0 μg/m3 (27) 3.0 μg/m3 (12) 34.0
 
Sept. 15, 2019, 7 p.m. 3.5 ppb (3) 1.1 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 41.0 ppb (32) 0.12 ppb (1) 33.0 μg/m3 (30) 5.0 μg/m3 (21) 32.0
 
Sept. 15, 2019, 6 p.m. 4.8 ppb (4) 0.9 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 41.0 ppb (32) 0.11 ppb (1) 34.0 μg/m3 (31) 6.0 μg/m3 (25) 32.0
 
Sept. 15, 2019, 5 p.m. 5.5 ppb (5) 1.4 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 38.0 ppb (29) 0.12 ppb (1) 35.0 μg/m3 (32) 5.0 μg/m3 (21) 32.0
 
Sept. 15, 2019, 4 p.m. 3.8 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (27) 0.1 ppb (1) 32.0 μg/m3 (29) 4.0 μg/m3 (17) 29.0
 
Sept. 15, 2019, 3 p.m. 4.1 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (25) 0.11 ppb (1) 23.0 μg/m3 (21) 4.0 μg/m3 (17) 25.0
 
Sept. 15, 2019, 2 p.m. 8.5 ppb (8) 1.5 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 25.0 ppb (19) 0.14 ppb (2) 43.0 μg/m3 (39) 5.0 μg/m3 (21) 39.0
 
Sept. 15, 2019, 1 p.m. 4.2 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 25.0 ppb (19) 0.12 ppb (1) 35.0 μg/m3 (32) 3.0 μg/m3 (12) 32.0
 
Sept. 15, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 43.0 μg/m3 (39) 5.0 μg/m3 (21) 39.0
 
Sept. 15, 2019, 11 a.m. 9.6 ppb (9) 0.8 ppb (1) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 17.0 ppb (13) 0.17 ppb (2) 43.0 μg/m3 (39) 9.0 μg/m3 (38) 39.0
 
Sept. 15, 2019, 10 a.m. 9.3 ppb (9) 0.6 ppb (1) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 21.0 ppb (16) 0.17 ppb (2) 40.0 μg/m3 (36) 9.0 μg/m3 (38) 38.0
 
Sept. 15, 2019, 9 a.m. 4.5 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (22) 0.14 ppb (2) 56.0 μg/m3 (50) 8.0 μg/m3 (33) 50.0
 
Sept. 15, 2019, 8 a.m. 6.5 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 30.0 ppb (23) 0.13 ppb (1) 59.0 μg/m3 (52) 10.0 μg/m3 (42) 52.0
 
Sept. 15, 2019, 7 a.m. 4.7 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 26.0 ppb (20) 0.15 ppb (2) 178.0 μg/m3 (112) 13.0 μg/m3 (52) 112.0
 
Sept. 15, 2019, 6 a.m. 25.3 ppb (23) 1.1 ppb (1) N/A 24.0 ppb (22) N/A 0.0 ppb (0) 9.0 ppb (7) 0.51 ppb (6) 146.0 μg/m3 (96) 27.0 μg/m3 (82) 96.0
 
Sept. 15, 2019, 5 a.m. 24.0 ppb (22) 2.1 ppb (2) N/A 22.0 ppb (20) N/A 1.0 ppb (1) 12.0 ppb (9) 0.48 ppb (5) 173.0 μg/m3 (109) 32.0 μg/m3 (93) 109.0
 
Sept. 15, 2019, 4 a.m. 32.5 ppb (30) 3.6 ppb (3) N/A 29.0 ppb (27) N/A 1.0 ppb (1) 8.0 ppb (6) 0.33 ppb (4) 121.0 μg/m3 (83) 20.0 μg/m3 (67) 83.0
 
Sept. 15, 2019, 3 a.m. 19.9 ppb (18) 1.2 ppb (1) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 26.0 ppb (20) 0.28 ppb (3) 93.0 μg/m3 (69) 12.0 μg/m3 (50) 69.0
 
Sept. 15, 2019, 2 a.m. 24.4 ppb (23) 1.1 ppb (1) N/A 23.0 ppb (21) N/A 0.0 ppb (0) 30.0 ppb (23) 0.41 ppb (5) 140.0 μg/m3 (92) 15.0 μg/m3 (56) 92.0
 
Sept. 15, 2019, 1 a.m. 6.9 ppb (6) 1.1 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 53.0 ppb (41) 0.15 ppb (2) 24.0 μg/m3 (22) 2.0 μg/m3 (8) 41.0
 
Sept. 15, 2019, midnight 2.7 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 65.0 ppb (50) 0.11 ppb (1) 22.0 μg/m3 (20) 4.0 μg/m3 (17) 50.0
 
Sept. 14, 2019, 11 p.m. 3.7 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 66.0 ppb (51) 0.16 ppb (2) 26.0 μg/m3 (24) 4.0 μg/m3 (17) 51.0
 
Sept. 14, 2019, 10 p.m. 3.3 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 68.0 ppb (52) 0.13 ppb (1) 28.0 μg/m3 (25) 2.0 μg/m3 (8) 52.0
 
Sept. 14, 2019, 9 p.m. 4.2 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 70.0 ppb (54) 0.15 ppb (2) 32.0 μg/m3 (29) 5.0 μg/m3 (21) 54.0
 
Sept. 14, 2019, 8 p.m. 3.8 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 78.0 ppb (61) 0.16 ppb (2) 40.0 μg/m3 (36) 6.0 μg/m3 (25) 61.0
 
Sept. 14, 2019, 7 p.m. 3.2 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 78.0 ppb (61) 0.16 ppb (2) 31.0 μg/m3 (28) 8.0 μg/m3 (33) 61.0
 
Sept. 14, 2019, 6 p.m. 3.8 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 74.0 ppb (57) 0.18 ppb (2) 46.0 μg/m3 (42) 6.0 μg/m3 (25) 57.0
 
Sept. 14, 2019, 5 p.m. 4.7 ppb (4) 0.2 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 65.0 ppb (50) 0.17 ppb (2) 50.0 μg/m3 (45) 7.0 μg/m3 (29) 50.0
 
Sept. 14, 2019, 4 p.m. 9.5 ppb (9) 1.7 ppb (2) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 45.0 ppb (35) 0.17 ppb (2) 48.0 μg/m3 (44) 7.0 μg/m3 (29) 44.0
 
Sept. 14, 2019, 3 p.m. 16.2 ppb (15) 3.3 ppb (3) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 39.0 ppb (30) 0.27 ppb (3) 70.0 μg/m3 (58) 8.0 μg/m3 (33) 58.0
 
Sept. 14, 2019, 2 p.m. 30.7 ppb (28) 8.1 ppb (8) N/A 23.0 ppb (21) N/A 0.0 ppb (0) 18.0 ppb (14) 0.41 ppb (5) 89.0 μg/m3 (67) 9.0 μg/m3 (38) 67.0
 
Sept. 14, 2019, 1 p.m. 14.2 ppb (13) 2.3 ppb (2) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 23.0 ppb (18) 0.24 ppb (3) 41.0 μg/m3 (37) 7.0 μg/m3 (29) 37.0
 
Sept. 14, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 37.0 μg/m3 (34) 8.0 μg/m3 (33) 34.0
 
Sept. 14, 2019, 11 a.m. 7.3 ppb (7) 0.2 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 34.0 ppb (26) 0.18 ppb (2) 56.0 μg/m3 (50) 6.0 μg/m3 (25) 50.0
 
Sept. 14, 2019, 10 a.m. 8.0 ppb (7) 0.1 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 31.0 ppb (24) 0.15 ppb (2) 80.0 μg/m3 (62) 8.0 μg/m3 (33) 62.0