Calexico CA, US: 32.676102, -115.483299
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| May 26, 2019, 1 p.m. | 1.4 ppb (1) | -0.3 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | 0.08 ppb (1) | N/A | 1.0 μg/m3 (4) | 31.0 | |
| May 26, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 μg/m3 (16) | 4.0 μg/m3 (17) | 17.0 | |
| May 26, 2019, 11 a.m. | 1.1 ppb (1) | -0.3 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 42.0 ppb (32) | 0.09 ppb (1) | 21.0 μg/m3 (19) | 6.0 μg/m3 (25) | 32.0 | |
| May 26, 2019, 10 a.m. | 1.1 ppb (1) | -0.4 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | 0.1 ppb (1) | 21.0 μg/m3 (19) | 6.0 μg/m3 (25) | 33.0 | |
| May 26, 2019, 9 a.m. | 1.5 ppb (1) | -0.5 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 42.0 ppb (32) | 0.11 ppb (1) | 16.0 μg/m3 (15) | 6.0 μg/m3 (25) | 32.0 | |
| May 26, 2019, 8 a.m. | 2.0 ppb (2) | -0.3 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 42.0 ppb (32) | 0.12 ppb (1) | 24.0 μg/m3 (22) | 8.0 μg/m3 (33) | 33.0 | |
| May 26, 2019, 7 a.m. | 2.9 ppb (3) | -0.3 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 41.0 ppb (32) | 0.13 ppb (1) | 34.0 μg/m3 (31) | 8.0 μg/m3 (33) | 33.0 | |
| May 26, 2019, 6 a.m. | 2.8 ppb (3) | -0.4 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | 0.14 ppb (2) | 46.0 μg/m3 (42) | 8.0 μg/m3 (33) | 42.0 | |
| May 26, 2019, 5 a.m. | 2.9 ppb (3) | -0.5 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 45.0 ppb (35) | 0.14 ppb (2) | 39.0 μg/m3 (35) | 10.0 μg/m3 (42) | 42.0 | |
| May 26, 2019, 4 a.m. | 4.6 ppb (4) | -0.4 ppb (0) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 48.0 ppb (37) | 0.17 ppb (2) | 39.0 μg/m3 (35) | 14.0 μg/m3 (54) | 54.0 | |
| May 26, 2019, 3 a.m. | 8.1 ppb (8) | -0.1 ppb (0) | N/A | 8.0 ppb (7) | N/A | 0.0 ppb (0) | 42.0 ppb (32) | 0.15 ppb (2) | 43.0 μg/m3 (39) | 9.0 μg/m3 (38) | 39.0 | |
| May 26, 2019, 2 a.m. | 7.1 ppb (7) | 0.4 ppb (0) | N/A | 7.0 ppb (6) | N/A | 0.0 ppb (0) | 48.0 ppb (37) | 0.15 ppb (2) | 35.0 μg/m3 (32) | 3.0 μg/m3 (12) | 37.0 | |
| May 26, 2019, 1 a.m. | 5.5 ppb (5) | 0.0 ppb (0) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 52.0 ppb (40) | 0.13 ppb (1) | 41.0 μg/m3 (37) | 5.0 μg/m3 (21) | 40.0 | |
| May 26, 2019, midnight | 3.3 ppb (3) | 0.1 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 53.0 ppb (41) | 0.11 ppb (1) | 55.0 μg/m3 (50) | 7.0 μg/m3 (29) | 50.0 | |
| May 25, 2019, 11 p.m. | 3.4 ppb (3) | 0.8 ppb (1) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 56.0 ppb (43) | 0.1 ppb (1) | 53.0 μg/m3 (48) | 9.0 μg/m3 (38) | 48.0 | |
| May 25, 2019, 10 p.m. | 2.7 ppb (3) | 0.3 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 55.0 ppb (42) | 0.1 ppb (1) | 52.0 μg/m3 (47) | 5.0 μg/m3 (21) | 47.0 | |
| May 25, 2019, 9 p.m. | 2.7 ppb (3) | -0.1 ppb (0) | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 54.0 ppb (42) | 0.11 ppb (1) | 36.0 μg/m3 (33) | 4.0 μg/m3 (17) | 42.0 | |
| May 25, 2019, 8 p.m. | 4.2 ppb (4) | 0.4 ppb (0) | N/A | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 55.0 ppb (42) | 0.13 ppb (1) | 35.0 μg/m3 (32) | 5.0 μg/m3 (21) | 42.0 | |
| May 25, 2019, 7 p.m. | 4.5 ppb (4) | 0.1 ppb (0) | N/A | 4.0 ppb (4) | N/A | 3.0 ppb (4) | 55.0 ppb (42) | 0.13 ppb (1) | 35.0 μg/m3 (32) | 6.0 μg/m3 (25) | 42.0 | |
| May 25, 2019, 6 p.m. | 5.7 ppb (5) | 0.4 ppb (0) | N/A | 5.0 ppb (5) | N/A | 2.0 ppb (3) | 61.0 ppb (47) | 0.17 ppb (2) | 32.0 μg/m3 (29) | 9.0 μg/m3 (38) | 47.0 | |
| May 25, 2019, 5 p.m. | 7.7 ppb (7) | 0.6 ppb (1) | N/A | 7.0 ppb (6) | N/A | 1.0 ppb (1) | 61.0 ppb (47) | 0.22 ppb (2) | 35.0 μg/m3 (32) | 10.0 μg/m3 (42) | 47.0 | |
| May 25, 2019, 4 p.m. | 12.0 ppb (11) | 1.6 ppb (1) | N/A | 11.0 ppb (10) | N/A | 1.0 ppb (1) | 50.0 ppb (38) | 0.23 ppb (3) | 37.0 μg/m3 (34) | 15.0 μg/m3 (56) | 56.0 | |
| May 25, 2019, 3 p.m. | 16.5 ppb (15) | 2.8 ppb (3) | N/A | 14.0 ppb (13) | N/A | 1.0 ppb (1) | 40.0 ppb (31) | 0.28 ppb (3) | 52.0 μg/m3 (47) | 15.0 μg/m3 (56) | 56.0 | |
| May 25, 2019, 2 p.m. | 36.9 ppb (34) | 11.1 ppb (10) | N/A | 26.0 ppb (24) | N/A | 1.0 ppb (1) | 21.0 ppb (16) | 0.49 ppb (5) | 103.0 μg/m3 (74) | 31.0 μg/m3 (90) | 90.0 | |
| May 25, 2019, 1 p.m. | 14.4 ppb (13) | 2.4 ppb (2) | N/A | 12.0 ppb (11) | N/A | 0.0 ppb (0) | 25.0 ppb (19) | 0.23 ppb (3) | 53.0 μg/m3 (48) | 12.0 μg/m3 (50) | 50.0 | |
| May 25, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 36.0 μg/m3 (33) | 8.0 μg/m3 (33) | 33.0 | |
| May 25, 2019, 11 a.m. | 3.7 ppb (3) | -0.3 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 41.0 ppb (32) | 0.14 ppb (2) | 17.0 μg/m3 (15) | 10.0 μg/m3 (42) | 42.0 | |
| May 25, 2019, 10 a.m. | 3.2 ppb (3) | -0.4 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 45.0 ppb (35) | 0.14 ppb (2) | 23.0 μg/m3 (21) | 7.0 μg/m3 (29) | 35.0 | |
| May 25, 2019, 9 a.m. | 4.0 ppb (4) | -0.5 ppb (0) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | 0.15 ppb (2) | 23.0 μg/m3 (21) | 9.0 μg/m3 (38) | 38.0 | |
| May 25, 2019, 8 a.m. | 5.5 ppb (5) | -0.5 ppb (0) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 41.0 ppb (32) | 0.16 ppb (2) | 27.0 μg/m3 (25) | 13.0 μg/m3 (52) | 52.0 | |
| May 25, 2019, 7 a.m. | 14.4 ppb (13) | 0.7 ppb (1) | N/A | 14.0 ppb (13) | N/A | 0.0 ppb (0) | 21.0 ppb (16) | 0.24 ppb (3) | 50.0 μg/m3 (45) | 11.0 μg/m3 (46) | 46.0 | |
| May 25, 2019, 6 a.m. | 11.5 ppb (11) | 0.3 ppb (0) | N/A | 11.0 ppb (10) | N/A | 0.0 ppb (0) | 34.0 ppb (26) | 0.21 ppb (2) | 43.0 μg/m3 (39) | 9.0 μg/m3 (38) | 39.0 | |
| May 25, 2019, 5 a.m. | 13.7 ppb (13) | 0.2 ppb (0) | N/A | 13.0 ppb (12) | N/A | 0.0 ppb (0) | 36.0 ppb (28) | 0.24 ppb (3) | 55.0 μg/m3 (50) | 9.0 μg/m3 (38) | 50.0 | |
| May 25, 2019, 4 a.m. | 18.3 ppb (17) | 0.8 ppb (1) | N/A | 18.0 ppb (17) | N/A | 0.0 ppb (0) | 27.0 ppb (21) | 0.3 ppb (3) | 44.0 μg/m3 (40) | 8.0 μg/m3 (33) | 40.0 | |
| May 25, 2019, 3 a.m. | 8.1 ppb (8) | -0.3 ppb (0) | N/A | 8.0 ppb (7) | N/A | 0.0 ppb (0) | 44.0 ppb (34) | 0.16 ppb (2) | 36.0 μg/m3 (33) | 8.0 μg/m3 (33) | 34.0 | |
| May 25, 2019, 2 a.m. | 3.5 ppb (3) | -0.4 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 58.0 ppb (45) | 0.13 ppb (1) | 27.0 μg/m3 (25) | 7.0 μg/m3 (29) | 45.0 | |
| May 25, 2019, 1 a.m. | 3.1 ppb (3) | -0.3 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 64.0 ppb (49) | 0.12 ppb (1) | 32.0 μg/m3 (29) | 7.0 μg/m3 (29) | 49.0 | |
| May 25, 2019, midnight | 3.9 ppb (4) | -0.2 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 68.0 ppb (52) | 0.14 ppb (2) | 31.0 μg/m3 (28) | 4.0 μg/m3 (17) | 52.0 | |
| May 24, 2019, 11 p.m. | 2.9 ppb (3) | -0.2 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 64.0 ppb (49) | 0.12 ppb (1) | 29.0 μg/m3 (26) | 5.0 μg/m3 (21) | 49.0 | |
| May 24, 2019, 10 p.m. | 3.9 ppb (4) | 0.1 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 58.0 ppb (45) | 0.14 ppb (2) | 33.0 μg/m3 (30) | 6.0 μg/m3 (25) | 45.0 | |
| May 24, 2019, 9 p.m. | 4.1 ppb (4) | 0.3 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 58.0 ppb (45) | 0.14 ppb (2) | 31.0 μg/m3 (28) | 7.0 μg/m3 (29) | 45.0 | |
| May 24, 2019, 8 p.m. | 3.9 ppb (4) | 0.4 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 54.0 ppb (42) | 0.13 ppb (1) | 19.0 μg/m3 (17) | 7.0 μg/m3 (29) | 42.0 | |
| May 24, 2019, 7 p.m. | 3.2 ppb (3) | 0.3 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 50.0 ppb (38) | 0.13 ppb (1) | N/A | N/A | 38.0 | |
| May 24, 2019, 6 p.m. | 2.4 ppb (2) | 0.0 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 48.0 ppb (37) | 0.11 ppb (1) | 19.0 μg/m3 (17) | 6.0 μg/m3 (25) | 37.0 | |
| May 24, 2019, 5 p.m. | 2.7 ppb (3) | 0.0 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 46.0 ppb (35) | 0.11 ppb (1) | 18.0 μg/m3 (16) | 7.0 μg/m3 (29) | 35.0 | |
| May 24, 2019, 4 p.m. | 3.4 ppb (3) | 0.4 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 41.0 ppb (32) | 0.11 ppb (1) | 26.0 μg/m3 (24) | 6.0 μg/m3 (25) | 32.0 | |
| May 24, 2019, 3 p.m. | 4.0 ppb (4) | 0.6 ppb (1) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 36.0 ppb (28) | 0.12 ppb (1) | 54.0 μg/m3 (49) | 8.0 μg/m3 (33) | 49.0 | |
| May 24, 2019, 2 p.m. | 7.9 ppb (7) | 1.5 ppb (1) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 33.0 ppb (25) | 0.17 ppb (2) | 28.0 μg/m3 (25) | 9.0 μg/m3 (38) | 38.0 | |
| May 24, 2019, 1 p.m. | 20.0 ppb (19) | 4.1 ppb (4) | N/A | 16.0 ppb (15) | N/A | 0.0 ppb (0) | 17.0 ppb (13) | 0.31 ppb (3) | 36.0 μg/m3 (33) | 7.0 μg/m3 (29) | 33.0 | |
| May 24, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 μg/m3 (23) | 6.0 μg/m3 (25) | 25.0 | |
| May 24, 2019, 11 a.m. | 7.8 ppb (7) | -0.1 ppb (0) | N/A | 8.0 ppb (7) | N/A | 0.0 ppb (0) | 21.0 ppb (16) | 0.19 ppb (2) | 23.0 μg/m3 (21) | 6.0 μg/m3 (25) | 25.0 | |
| May 24, 2019, 10 a.m. | 4.9 ppb (5) | -0.5 ppb (0) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 27.0 ppb (21) | 0.12 ppb (1) | 13.0 μg/m3 (12) | 4.0 μg/m3 (17) | 21.0 | |
| May 24, 2019, 9 a.m. | 2.8 ppb (3) | -0.3 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 32.0 ppb (25) | 0.11 ppb (1) | 10.0 μg/m3 (9) | 2.0 μg/m3 (8) | 25.0 | |
| May 24, 2019, 8 a.m. | 4.5 ppb (4) | -0.3 ppb (0) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 28.0 ppb (22) | 0.11 ppb (1) | 11.0 μg/m3 (10) | 5.0 μg/m3 (21) | 22.0 | |
| May 24, 2019, 7 a.m. | 4.0 ppb (4) | -0.3 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 32.0 ppb (25) | 0.12 ppb (1) | 20.0 μg/m3 (18) | 6.0 μg/m3 (25) | 25.0 | |
| May 24, 2019, 6 a.m. | 3.6 ppb (3) | -0.3 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 34.0 ppb (26) | 0.12 ppb (1) | 15.0 μg/m3 (14) | 6.0 μg/m3 (25) | 26.0 | |
| May 24, 2019, 5 a.m. | 2.1 ppb (2) | -0.5 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 39.0 ppb (30) | 0.1 ppb (1) | 23.0 μg/m3 (21) | 8.0 μg/m3 (33) | 33.0 | |
| May 24, 2019, 4 a.m. | 2.4 ppb (2) | -0.4 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 39.0 ppb (30) | 0.11 ppb (1) | 26.0 μg/m3 (24) | 8.0 μg/m3 (33) | 33.0 | |
| May 24, 2019, 3 a.m. | 2.5 ppb (2) | -0.3 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 41.0 ppb (32) | 0.11 ppb (1) | 31.0 μg/m3 (28) | 8.0 μg/m3 (33) | 33.0 | |
| May 24, 2019, 2 a.m. | 2.3 ppb (2) | -0.4 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 44.0 ppb (34) | 0.11 ppb (1) | 31.0 μg/m3 (28) | 5.0 μg/m3 (21) | 34.0 | |
| May 24, 2019, 1 a.m. | 1.6 ppb (1) | -0.4 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 48.0 ppb (37) | 0.1 ppb (1) | 14.0 μg/m3 (13) | 6.0 μg/m3 (25) | 37.0 | |
| May 24, 2019, midnight | 1.5 ppb (1) | -0.1 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 47.0 ppb (36) | 0.1 ppb (1) | 24.0 μg/m3 (22) | 5.0 μg/m3 (21) | 36.0 | |
| May 23, 2019, 11 p.m. | 1.2 ppb (1) | -0.3 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 48.0 ppb (37) | 0.09 ppb (1) | 61.0 μg/m3 (53) | 3.0 μg/m3 (12) | 53.0 | |
| May 23, 2019, 10 p.m. | 1.5 ppb (1) | -0.3 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 49.0 ppb (38) | 0.1 ppb (1) | 14.0 μg/m3 (13) | 3.0 μg/m3 (12) | 38.0 | |
| May 23, 2019, 9 p.m. | 1.5 ppb (1) | -0.2 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 49.0 ppb (38) | 0.1 ppb (1) | 9.0 μg/m3 (8) | 2.0 μg/m3 (8) | 38.0 | |
| May 23, 2019, 8 p.m. | 1.6 ppb (1) | -0.2 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 48.0 ppb (37) | 0.1 ppb (1) | 10.0 μg/m3 (9) | 3.0 μg/m3 (12) | 37.0 | |
| May 23, 2019, 7 p.m. | 0.9 ppb (1) | -0.3 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 48.0 ppb (37) | 0.1 ppb (1) | 13.0 μg/m3 (12) | 4.0 μg/m3 (17) | 37.0 | |
| May 23, 2019, 6 p.m. | 1.2 ppb (1) | -0.2 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 47.0 ppb (36) | 0.1 ppb (1) | 9.0 μg/m3 (8) | 6.0 μg/m3 (25) | 36.0 | |
| May 23, 2019, 5 p.m. | 2.8 ppb (3) | 0.2 ppb (0) | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 46.0 ppb (35) | 0.11 ppb (1) | 25.0 μg/m3 (23) | 8.0 μg/m3 (33) | 35.0 | |
| May 23, 2019, 4 p.m. | 8.7 ppb (8) | 2.2 ppb (2) | N/A | 7.0 ppb (6) | N/A | 1.0 ppb (1) | 42.0 ppb (32) | 0.15 ppb (2) | 26.0 μg/m3 (24) | 10.0 μg/m3 (42) | 42.0 | |
| May 23, 2019, 3 p.m. | 27.4 ppb (25) | 10.2 ppb (9) | N/A | 17.0 ppb (16) | N/A | 1.0 ppb (1) | 29.0 ppb (22) | 0.28 ppb (3) | 47.0 μg/m3 (43) | 8.0 μg/m3 (33) | 43.0 | |
| May 23, 2019, 2 p.m. | 4.3 ppb (4) | 0.3 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | 0.13 ppb (1) | 22.0 μg/m3 (20) | 5.0 μg/m3 (21) | 31.0 | |
| May 23, 2019, 1 p.m. | 3.9 ppb (4) | -0.1 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 39.0 ppb (30) | 0.12 ppb (1) | 27.0 μg/m3 (25) | 7.0 μg/m3 (29) | 30.0 | |
| May 23, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 μg/m3 (13) | 11.0 μg/m3 (46) | 46.0 | |
| May 23, 2019, 11 a.m. | 3.6 ppb (3) | -0.5 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 38.0 ppb (29) | 0.12 ppb (1) | 9.0 μg/m3 (8) | 3.0 μg/m3 (12) | 29.0 | |
| May 23, 2019, 10 a.m. | 2.5 ppb (2) | -0.3 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 42.0 ppb (32) | 0.11 ppb (1) | 13.0 μg/m3 (12) | 3.0 μg/m3 (12) | 32.0 | |
| May 23, 2019, 9 a.m. | 1.6 ppb (1) | -0.3 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 44.0 ppb (34) | 0.09 ppb (1) | 8.0 μg/m3 (7) | 5.0 μg/m3 (21) | 34.0 | |
| May 23, 2019, 8 a.m. | 1.5 ppb (1) | -0.2 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 47.0 ppb (36) | 0.09 ppb (1) | 4.0 μg/m3 (4) | 4.0 μg/m3 (17) | 36.0 | |
| May 23, 2019, 7 a.m. | 1.0 ppb (1) | -0.5 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 45.0 ppb (35) | 0.09 ppb (1) | 7.0 μg/m3 (6) | 3.0 μg/m3 (12) | 35.0 | |
| May 23, 2019, 6 a.m. | 1.8 ppb (2) | -0.4 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | 0.09 ppb (1) | 7.0 μg/m3 (6) | 2.0 μg/m3 (8) | 31.0 | |
| May 23, 2019, 5 a.m. | 1.2 ppb (1) | -0.5 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 41.0 ppb (32) | 0.09 ppb (1) | 5.0 μg/m3 (5) | 2.0 μg/m3 (8) | 32.0 | |
| May 23, 2019, 4 a.m. | 2.4 ppb (2) | -0.3 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | 0.09 ppb (1) | 25.0 μg/m3 (23) | 4.0 μg/m3 (17) | 31.0 | |
| May 23, 2019, 3 a.m. | 2.4 ppb (2) | -0.3 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 41.0 ppb (32) | 0.09 ppb (1) | 22.0 μg/m3 (20) | 5.0 μg/m3 (21) | 32.0 | |
| May 23, 2019, 2 a.m. | 1.3 ppb (1) | -0.4 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 46.0 ppb (35) | 0.09 ppb (1) | 17.0 μg/m3 (15) | 4.0 μg/m3 (17) | 35.0 | |
| May 23, 2019, 1 a.m. | 1.3 ppb (1) | -0.2 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 50.0 ppb (38) | 0.09 ppb (1) | 16.0 μg/m3 (15) | 5.0 μg/m3 (21) | 38.0 | |
| May 23, 2019, midnight | 1.1 ppb (1) | -0.3 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 52.0 ppb (40) | 0.09 ppb (1) | 51.0 μg/m3 (46) | 6.0 μg/m3 (25) | 46.0 | |
| May 22, 2019, 11 p.m. | 1.5 ppb (1) | -0.1 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 54.0 ppb (42) | 0.1 ppb (1) | 38.0 μg/m3 (35) | 6.0 μg/m3 (25) | 42.0 | |
| May 22, 2019, 10 p.m. | 1.8 ppb (2) | -0.1 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 54.0 ppb (42) | 0.1 ppb (1) | 16.0 μg/m3 (15) | 4.0 μg/m3 (17) | 42.0 | |
| May 22, 2019, 9 p.m. | 1.7 ppb (2) | -0.1 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 52.0 ppb (40) | 0.09 ppb (1) | 47.0 μg/m3 (43) | 3.0 μg/m3 (12) | 43.0 | |
| May 22, 2019, 8 p.m. | 1.4 ppb (1) | -0.2 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 50.0 ppb (38) | 0.09 ppb (1) | 107.0 μg/m3 (76) | 4.0 μg/m3 (17) | 76.0 | |
| May 22, 2019, 7 p.m. | 1.1 ppb (1) | -0.3 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 50.0 ppb (38) | 0.09 ppb (1) | 43.0 μg/m3 (39) | 5.0 μg/m3 (21) | 39.0 | |
| May 22, 2019, 6 p.m. | 1.3 ppb (1) | -0.2 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 48.0 ppb (37) | 0.09 ppb (1) | 36.0 μg/m3 (33) | 4.0 μg/m3 (17) | 37.0 | |
| May 22, 2019, 5 p.m. | 1.4 ppb (1) | -0.1 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 47.0 ppb (36) | 0.09 ppb (1) | 75.0 μg/m3 (60) | 3.0 μg/m3 (12) | 60.0 | |
| May 22, 2019, 4 p.m. | 1.0 ppb (1) | -0.2 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 48.0 ppb (37) | 0.09 ppb (1) | 34.0 μg/m3 (31) | 3.0 μg/m3 (12) | 37.0 | |
| May 22, 2019, 3 p.m. | 1.8 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 46.0 ppb (35) | 0.09 ppb (1) | 38.0 μg/m3 (35) | 4.0 μg/m3 (17) | 35.0 | |
| May 22, 2019, 2 p.m. | 1.3 ppb (1) | -0.2 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 48.0 ppb (37) | 0.09 ppb (1) | 32.0 μg/m3 (29) | 5.0 μg/m3 (21) | 37.0 | |
| May 22, 2019, 1 p.m. | 1.1 ppb (1) | -0.3 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 47.0 ppb (36) | 0.08 ppb (1) | 26.0 μg/m3 (24) | 4.0 μg/m3 (17) | 36.0 | |
| May 22, 2019, noon | 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, 11 a.m. | 0.7 ppb (1) | -0.4 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 45.0 ppb (35) | 0.09 ppb (1) | 28.0 μg/m3 (25) | 3.0 μg/m3 (12) | 35.0 | |
| May 22, 2019, 10 a.m. | 1.0 ppb (1) | -0.4 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 44.0 ppb (34) | 0.09 ppb (1) | 14.0 μg/m3 (13) | 3.0 μg/m3 (12) | 34.0 | |
| May 22, 2019, 9 a.m. | 0.9 ppb (1) | -0.4 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 46.0 ppb (35) | 0.09 ppb (1) | 17.0 μg/m3 (15) | 3.0 μg/m3 (12) | 35.0 | |
| May 22, 2019, 8 a.m. | 0.8 ppb (1) | -0.4 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 46.0 ppb (35) | 0.08 ppb (1) | 13.0 μg/m3 (12) | 5.0 μg/m3 (21) | 35.0 | |
| May 22, 2019, 7 a.m. | 0.8 ppb (1) | -0.5 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 46.0 ppb (35) | 0.08 ppb (1) | 124.0 μg/m3 (84) | 6.0 μg/m3 (25) | 84.0 | |
| May 22, 2019, 6 a.m. | 1.2 ppb (1) | -0.3 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 45.0 ppb (35) | 0.09 ppb (1) | 20.0 μg/m3 (18) | 5.0 μg/m3 (21) | 35.0 | |
| May 22, 2019, 5 a.m. | 1.3 ppb (1) | -0.3 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 46.0 ppb (35) | 0.09 ppb (1) | 54.0 μg/m3 (49) | 8.0 μg/m3 (33) | 49.0 | |
| May 22, 2019, 4 a.m. | 1.7 ppb (2) | -0.4 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 48.0 ppb (37) | 0.1 ppb (1) | 50.0 μg/m3 (45) | 8.0 μg/m3 (33) | 45.0 | |
| May 22, 2019, 3 a.m. | 1.4 ppb (1) | -0.7 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 50.0 ppb (38) | 0.1 ppb (1) | 67.0 μg/m3 (56) | 7.0 μg/m3 (29) | 56.0 | |
| May 22, 2019, 2 a.m. | 2.4 ppb (2) | -0.4 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 49.0 ppb (38) | 0.1 ppb (1) | 130.0 μg/m3 (88) | 10.0 μg/m3 (42) | 88.0 | |
| May 22, 2019, 1 a.m. | 2.3 ppb (2) | -0.4 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 49.0 ppb (38) | 0.1 ppb (1) | 151.0 μg/m3 (98) | 15.0 μg/m3 (56) | 98.0 | |
| May 22, 2019, midnight | 2.3 ppb (2) | -0.1 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 52.0 ppb (40) | 0.11 ppb (1) | 128.0 μg/m3 (86) | 10.0 μg/m3 (42) | 86.0 | |
| May 21, 2019, 11 p.m. | 1.7 ppb (2) | -0.3 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 53.0 ppb (41) | 0.1 ppb (1) | 246.0 μg/m3 (146) | 22.0 μg/m3 (71) | 146.0 | |
| May 21, 2019, 10 p.m. | 2.1 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 55.0 ppb (42) | 0.1 ppb (1) | 387.0 μg/m3 (246) | 32.0 μg/m3 (93) | 246.0 | |
| May 21, 2019, 9 p.m. | 1.7 ppb (2) | -0.4 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 57.0 ppb (44) | 0.1 ppb (1) | 199.0 μg/m3 (122) | 18.0 μg/m3 (63) | 122.0 | |
| May 21, 2019, 8 p.m. | 1.8 ppb (2) | -0.2 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 58.0 ppb (45) | 0.1 ppb (1) | 79.0 μg/m3 (62) | 6.0 μg/m3 (25) | 62.0 | |
| May 21, 2019, 7 p.m. | 1.9 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 57.0 ppb (44) | 0.1 ppb (1) | 99.0 μg/m3 (72) | 16.0 μg/m3 (59) | 72.0 | |
| May 21, 2019, 6 p.m. | 1.6 ppb (1) | -0.2 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) | 7.0 μg/m3 (29) | 43.0 | |
| May 21, 2019, 5 p.m. | 1.5 ppb (1) | -0.2 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 53.0 ppb (41) | 0.1 ppb (1) | 19.0 μg/m3 (17) | 7.0 μg/m3 (29) | 41.0 | |
| May 21, 2019, 4 p.m. | 1.6 ppb (1) | -0.1 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 53.0 ppb (41) | 0.1 ppb (1) | 11.0 μg/m3 (10) | 6.0 μg/m3 (25) | 41.0 | |
| May 21, 2019, 3 p.m. | 1.8 ppb (2) | -0.2 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 52.0 ppb (40) | 0.1 ppb (1) | 13.0 μg/m3 (12) | 6.0 μg/m3 (25) | 40.0 | |
| May 21, 2019, 2 p.m. | 2.0 ppb (2) | -0.1 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 52.0 ppb (40) | 0.1 ppb (1) | 16.0 μg/m3 (15) | 3.0 μg/m3 (12) | 40.0 | |
| May 21, 2019, 1 p.m. | 1.6 ppb (1) | -0.2 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 50.0 ppb (38) | 0.09 ppb (1) | 16.0 μg/m3 (15) | 2.0 μg/m3 (8) | 38.0 | |
| May 21, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 μg/m3 (8) | 1.0 μg/m3 (4) | 8.0 | |
| May 21, 2019, 11 a.m. | 2.0 ppb (2) | -0.4 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 49.0 ppb (38) | 0.1 ppb (1) | 11.0 μg/m3 (10) | 3.0 μg/m3 (12) | 38.0 | |
| May 21, 2019, 10 a.m. | 2.0 ppb (2) | -0.4 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 46.0 ppb (35) | 0.1 ppb (1) | 14.0 μg/m3 (13) | 5.0 μg/m3 (21) | 35.0 | |
| May 21, 2019, 9 a.m. | 1.4 ppb (1) | -0.5 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 48.0 ppb (37) | 0.09 ppb (1) | 18.0 μg/m3 (16) | 6.0 μg/m3 (25) | 37.0 | |
| May 21, 2019, 8 a.m. | 1.1 ppb (1) | -0.4 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 49.0 ppb (38) | 0.09 ppb (1) | 12.0 μg/m3 (11) | 4.0 μg/m3 (17) | 38.0 | |
| May 21, 2019, 7 a.m. | 1.5 ppb (1) | -0.4 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 50.0 ppb (38) | 0.1 ppb (1) | 14.0 μg/m3 (13) | 4.0 μg/m3 (17) | 38.0 | |
| May 21, 2019, 6 a.m. | 1.8 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) | 15.0 μg/m3 (14) | 5.0 μg/m3 (21) | 38.0 | |
| May 21, 2019, 5 a.m. | 2.4 ppb (2) | -0.5 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 50.0 ppb (38) | 0.11 ppb (1) | 15.0 μg/m3 (14) | 6.0 μg/m3 (25) | 38.0 | |
| May 21, 2019, 4 a.m. | 3.0 ppb (3) | -0.4 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 50.0 ppb (38) | 0.11 ppb (1) | 31.0 μg/m3 (28) | 5.0 μg/m3 (21) | 38.0 | |
| May 21, 2019, 3 a.m. | 2.9 ppb (3) | -0.5 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 52.0 ppb (40) | 0.11 ppb (1) | 18.0 μg/m3 (16) | 5.0 μg/m3 (21) | 40.0 | |
| May 21, 2019, 2 a.m. | 3.0 ppb (3) | -0.3 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 54.0 ppb (42) | 0.11 ppb (1) | 21.0 μg/m3 (19) | 5.0 μg/m3 (21) | 42.0 | |
| May 21, 2019, 1 a.m. | 1.8 ppb (2) | -0.3 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 59.0 ppb (45) | 0.1 ppb (1) | 22.0 μg/m3 (20) | 4.0 μg/m3 (17) | 45.0 | |
| May 21, 2019, midnight | 1.6 ppb (1) | -0.2 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 60.0 ppb (46) | 0.1 ppb (1) | 20.0 μg/m3 (18) | 5.0 μg/m3 (21) | 46.0 | |
| May 20, 2019, 11 p.m. | 1.3 ppb (1) | -0.3 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 59.0 ppb (45) | 0.1 ppb (1) | 18.0 μg/m3 (16) | 5.0 μg/m3 (21) | 45.0 | |
| May 20, 2019, 10 p.m. | 1.6 ppb (1) | -0.3 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 56.0 ppb (43) | 0.1 ppb (1) | 14.0 μg/m3 (13) | 3.0 μg/m3 (12) | 43.0 | |
| May 20, 2019, 9 p.m. | 1.3 ppb (1) | -0.2 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 56.0 ppb (43) | 0.1 ppb (1) | 15.0 μg/m3 (14) | 2.0 μg/m3 (8) | 43.0 | |
| May 20, 2019, 8 p.m. | 1.3 ppb (1) | -0.2 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 55.0 ppb (42) | 0.1 ppb (1) | 17.0 μg/m3 (15) | 1.0 μg/m3 (4) | 42.0 | |
| May 20, 2019, 7 p.m. | 1.4 ppb (1) | -0.1 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 53.0 ppb (41) | 0.1 ppb (1) | 20.0 μg/m3 (18) | 3.0 μg/m3 (12) | 41.0 | |
| May 20, 2019, 6 p.m. | 1.2 ppb (1) | -0.2 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 53.0 ppb (41) | 0.1 ppb (1) | 15.0 μg/m3 (14) | 5.0 μg/m3 (21) | 41.0 | |
| May 20, 2019, 5 p.m. | 1.4 ppb (1) | -0.2 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 53.0 ppb (41) | 0.1 ppb (1) | 169.0 μg/m3 (107) | 4.0 μg/m3 (17) | 107.0 | |
| May 20, 2019, 4 p.m. | 1.6 ppb (1) | -0.1 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 52.0 ppb (40) | 0.1 ppb (1) | 34.0 μg/m3 (31) | 5.0 μg/m3 (21) | 40.0 | |
| May 20, 2019, 3 p.m. | 2.5 ppb (2) | 0.1 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 51.0 ppb (39) | 0.1 ppb (1) | 16.0 μg/m3 (15) | 5.0 μg/m3 (21) | 39.0 | |
| May 20, 2019, 2 p.m. | 2.1 ppb (2) | -0.2 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 50.0 ppb (38) | 0.1 ppb (1) | 9.0 μg/m3 (8) | 4.0 μg/m3 (17) | 38.0 | |
| May 20, 2019, 1 p.m. | 2.2 ppb (2) | -0.1 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 51.0 ppb (39) | 0.09 ppb (1) | 12.0 μg/m3 (11) | 5.0 μg/m3 (21) | 39.0 | |
| May 20, 2019, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 μg/m3 (8) | 2.0 μg/m3 (8) | 8.0 | |
| May 20, 2019, 11 a.m. | 0.9 ppb (1) | -0.4 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 55.0 ppb (42) | 0.1 ppb (1) | 16.0 μg/m3 (15) | 2.0 μg/m3 (8) | 42.0 | |
| May 20, 2019, 10 a.m. | 0.7 ppb (1) | -0.4 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 53.0 ppb (41) | 0.1 ppb (1) | 10.0 μg/m3 (9) | 4.0 μg/m3 (17) | 41.0 | |
| May 20, 2019, 9 a.m. | 0.7 ppb (1) | -0.4 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 49.0 ppb (38) | 0.09 ppb (1) | 12.0 μg/m3 (11) | 4.0 μg/m3 (17) | 38.0 | |
| May 20, 2019, 8 a.m. | 1.1 ppb (1) | -0.3 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 49.0 ppb (38) | 0.1 ppb (1) | 10.0 μg/m3 (9) | 3.0 μg/m3 (12) | 38.0 | |
| May 20, 2019, 7 a.m. | 1.0 ppb (1) | -0.4 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 50.0 ppb (38) | 0.09 ppb (1) | 16.0 μg/m3 (15) | 4.0 μg/m3 (17) | 38.0 | |
| May 20, 2019, 6 a.m. | 1.3 ppb (1) | -0.4 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 51.0 ppb (39) | 0.09 ppb (1) | 15.0 μg/m3 (14) | 7.0 μg/m3 (29) | 39.0 | |
| May 20, 2019, 5 a.m. | 1.2 ppb (1) | -0.7 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 52.0 ppb (40) | 0.09 ppb (1) | 56.0 μg/m3 (50) | 10.0 μg/m3 (42) | 50.0 | |
| May 20, 2019, 4 a.m. | 1.6 ppb (1) | -0.3 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 52.0 ppb (40) | 0.1 ppb (1) | 31.0 μg/m3 (28) | 8.0 μg/m3 (33) | 40.0 | |
| May 20, 2019, 3 a.m. | 1.4 ppb (1) | -0.5 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 53.0 ppb (41) | 0.1 ppb (1) | 42.0 μg/m3 (38) | 7.0 μg/m3 (29) | 41.0 | |
| May 20, 2019, 2 a.m. | 1.1 ppb (1) | -0.4 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 54.0 ppb (42) | 0.1 ppb (1) | 50.0 μg/m3 (45) | 8.0 μg/m3 (33) | 45.0 | |
| May 20, 2019, 1 a.m. | 1.0 ppb (1) | -0.4 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 53.0 ppb (41) | 0.09 ppb (1) | 110.0 μg/m3 (78) | 15.0 μg/m3 (56) | 78.0 | |
| May 20, 2019, midnight | 1.0 ppb (1) | -0.3 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 46.0 ppb (35) | 0.09 ppb (1) | 192.0 μg/m3 (118) | 5.0 μg/m3 (21) | 118.0 | |
| May 19, 2019, 11 p.m. | 1.1 ppb (1) | -0.2 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | 0.1 ppb (1) | 47.0 μg/m3 (43) | 7.0 μg/m3 (29) | 43.0 | |
| May 19, 2019, 10 p.m. | 1.0 ppb (1) | -0.4 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | 0.1 ppb (1) | 98.0 μg/m3 (72) | 10.0 μg/m3 (42) | 72.0 | |
| May 19, 2019, 9 p.m. | 1.2 ppb (1) | -0.3 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | 0.1 ppb (1) | 33.0 μg/m3 (30) | 7.0 μg/m3 (29) | 33.0 | |
| May 19, 2019, 8 p.m. | 1.4 ppb (1) | -0.2 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 45.0 ppb (35) | 0.09 ppb (1) | 26.0 μg/m3 (24) | 6.0 μg/m3 (25) | 35.0 | |
| May 19, 2019, 7 p.m. | 1.1 ppb (1) | -0.2 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 45.0 ppb (35) | 0.09 ppb (1) | 31.0 μg/m3 (28) | 4.0 μg/m3 (17) | 35.0 | |
| May 19, 2019, 6 p.m. | 1.0 ppb (1) | -0.3 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 48.0 ppb (37) | 0.09 ppb (1) | 45.0 μg/m3 (41) | 4.0 μg/m3 (17) | 41.0 | |
| May 19, 2019, 5 p.m. | 1.0 ppb (1) | -0.3 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 48.0 ppb (37) | 0.09 ppb (1) | 27.0 μg/m3 (25) | 5.0 μg/m3 (21) | 37.0 | |
| May 19, 2019, 4 p.m. | 1.0 ppb (1) | -0.3 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 47.0 ppb (36) | 0.08 ppb (1) | 44.0 μg/m3 (40) | 4.0 μg/m3 (17) | 40.0 | |
| May 19, 2019, 3 p.m. | 1.3 ppb (1) | -0.3 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 48.0 ppb (37) | 0.09 ppb (1) | 11.0 μg/m3 (10) | 4.0 μg/m3 (17) | 37.0 | |
| May 19, 2019, 2 p.m. | 1.2 ppb (1) | -0.5 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 48.0 ppb (37) | 0.09 ppb (1) | 20.0 μg/m3 (18) | 8.0 μg/m3 (33) | 37.0 |