Phoenix (W Hazelwood St) AZ, US: 33.503601, -112.095001
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| May 24, 2019, 1 a.m. | N/A | 0.2 ppb (0) | -0.6 ppb (0) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | N/A | 0.16 ppb (2) | 12.0 μg/m3 (11) | 3.0 μg/m3 (12) | 12.0 | |
| May 24, 2019, midnight | N/A | 0.5 ppb (0) | -0.1 ppb (0) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | N/A | 0.16 ppb (2) | 13.0 μg/m3 (12) | 3.0 μg/m3 (12) | 12.0 | |
| May 23, 2019, 11 p.m. | N/A | 0.4 ppb (0) | -0.8 ppb (0) | 2.0 ppb (2) | N/A | 1.0 ppb (1) | N/A | 0.17 ppb (2) | 11.0 μg/m3 (10) | 5.0 μg/m3 (21) | 21.0 | |
| May 23, 2019, 10 p.m. | N/A | 0.5 ppb (0) | -0.7 ppb (0) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 50.0 ppb (38) | 0.16 ppb (2) | 12.0 μg/m3 (11) | 2.0 μg/m3 (8) | 38.0 | |
| May 23, 2019, 9 p.m. | N/A | 0.2 ppb (0) | -1.8 ppb (0) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 48.0 ppb (37) | 0.15 ppb (2) | 11.0 μg/m3 (10) | 2.0 μg/m3 (8) | 37.0 | |
| May 23, 2019, 8 p.m. | N/A | 0.4 ppb (0) | -1.4 ppb (0) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 48.0 ppb (37) | 0.16 ppb (2) | 11.0 μg/m3 (10) | 3.0 μg/m3 (12) | 37.0 | |
| May 23, 2019, 7 p.m. | N/A | 0.3 ppb (0) | -1.5 ppb (0) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 47.0 ppb (36) | 0.15 ppb (2) | 11.0 μg/m3 (10) | 3.0 μg/m3 (12) | 36.0 | |
| May 23, 2019, 6 p.m. | N/A | 0.5 ppb (0) | -0.7 ppb (0) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 45.0 ppb (35) | 0.16 ppb (2) | 16.0 μg/m3 (15) | 6.0 μg/m3 (25) | 35.0 | |
| May 23, 2019, 5 p.m. | N/A | 0.4 ppb (0) | -0.8 ppb (0) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 44.0 ppb (34) | 0.17 ppb (2) | 12.0 μg/m3 (11) | 6.0 μg/m3 (25) | 34.0 | |
| May 23, 2019, 4 p.m. | N/A | 0.5 ppb (0) | 0.0 ppb (0) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 42.0 ppb (32) | 0.17 ppb (2) | 16.0 μg/m3 (15) | 5.0 μg/m3 (21) | 32.0 | |
| May 23, 2019, 3 p.m. | N/A | 1.2 ppb (1) | 2.3 ppb (2) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 39.0 ppb (30) | 0.19 ppb (2) | 20.0 μg/m3 (18) | 7.0 μg/m3 (29) | 30.0 | |
| May 23, 2019, 2 p.m. | N/A | 8.6 ppb (8) | 15.9 ppb (15) | 16.0 ppb (15) | N/A | 1.0 ppb (1) | 32.0 ppb (25) | 0.26 ppb (3) | 20.0 μg/m3 (18) | 5.0 μg/m3 (21) | 25.0 | |
| May 23, 2019, 1 p.m. | N/A | 16.3 ppb (15) | 31.6 ppb (29) | 26.0 ppb (24) | N/A | 1.0 ppb (1) | 25.0 ppb (19) | 0.27 ppb (3) | 17.0 μg/m3 (15) | 6.0 μg/m3 (25) | 29.0 | |
| May 23, 2019, noon | N/A | 5.8 ppb (5) | 11.8 ppb (11) | 13.0 ppb (12) | N/A | 1.0 ppb (1) | 32.0 ppb (25) | 0.23 ppb (3) | 8.0 μg/m3 (7) | 6.0 μg/m3 (25) | 25.0 | |
| May 23, 2019, 11 a.m. | N/A | 6.9 ppb (6) | 10.6 ppb (10) | 11.0 ppb (10) | N/A | 1.0 ppb (1) | 37.0 ppb (28) | 0.2 ppb (2) | 13.0 μg/m3 (12) | 6.0 μg/m3 (25) | 28.0 | |
| May 23, 2019, 10 a.m. | N/A | 2.2 ppb (2) | 1.0 ppb (1) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 44.0 ppb (34) | 0.17 ppb (2) | 12.0 μg/m3 (11) | 2.0 μg/m3 (8) | 34.0 | |
| May 23, 2019, 9 a.m. | N/A | 0.0 ppb (0) | -3.1 ppb (0) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 45.0 ppb (35) | 0.17 ppb (2) | 18.0 μg/m3 (16) | 5.0 μg/m3 (21) | 35.0 | |
| May 23, 2019, 8 a.m. | N/A | 0.0 ppb (0) | -2.7 ppb (0) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 45.0 ppb (35) | 0.16 ppb (2) | 7.0 μg/m3 (6) | 2.0 μg/m3 (8) | 35.0 | |
| May 23, 2019, 7 a.m. | N/A | 0.0 ppb (0) | -1.5 ppb (0) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | 0.17 ppb (2) | 19.0 μg/m3 (17) | 2.0 μg/m3 (8) | 33.0 | |
| May 23, 2019, 6 a.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 42.0 ppb (32) | 0.19 ppb (2) | 19.0 μg/m3 (17) | 0.0 μg/m3 (0) | 32.0 | |
| May 23, 2019, 5 a.m. | N/A | 0.0 ppb (0) | -1.0 ppb (0) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 46.0 ppb (35) | 0.18 ppb (2) | 12.0 μg/m3 (11) | 1.0 μg/m3 (4) | 35.0 | |
| May 23, 2019, 4 a.m. | N/A | 0.0 ppb (0) | -0.7 ppb (0) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 45.0 ppb (35) | 0.18 ppb (2) | 17.0 μg/m3 (15) | 3.0 μg/m3 (12) | 35.0 | |
| May 23, 2019, 3 a.m. | N/A | 0.0 ppb (0) | 0.1 ppb (0) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 44.0 ppb (34) | 0.2 ppb (2) | 16.0 μg/m3 (15) | 3.0 μg/m3 (12) | 34.0 | |
| May 23, 2019, 2 a.m. | N/A | 0.0 ppb (0) | -1.0 ppb (0) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 46.0 ppb (35) | 0.19 ppb (2) | 16.0 μg/m3 (15) | 3.0 μg/m3 (12) | 35.0 | |
| May 23, 2019, 1 a.m. | N/A | 0.0 ppb (0) | -1.1 ppb (0) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 48.0 ppb (37) | 0.18 ppb (2) | 22.0 μg/m3 (20) | 2.0 μg/m3 (8) | 37.0 | |
| May 23, 2019, midnight | N/A | 0.0 ppb (0) | -1.5 ppb (0) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 50.0 ppb (38) | 0.17 ppb (2) | 23.0 μg/m3 (21) | 2.0 μg/m3 (8) | 38.0 | |
| May 22, 2019, 11 p.m. | N/A | 0.2 ppb (0) | -2.0 ppb (0) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | 0.16 ppb (2) | 20.0 μg/m3 (18) | 0.0 μg/m3 (0) | 18.0 | |
| May 22, 2019, 10 p.m. | N/A | 0.2 ppb (0) | -1.9 ppb (0) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | 0.16 ppb (2) | 17.0 μg/m3 (15) | 0.0 μg/m3 (0) | 15.0 | |
| May 22, 2019, 9 p.m. | N/A | 0.2 ppb (0) | -2.0 ppb (0) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | 0.17 ppb (2) | 22.0 μg/m3 (20) | 1.0 μg/m3 (4) | 20.0 | |
| May 22, 2019, 8 p.m. | N/A | 0.2 ppb (0) | -1.7 ppb (0) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | 0.17 ppb (2) | 18.0 μg/m3 (16) | 3.0 μg/m3 (12) | 16.0 | |
| May 22, 2019, 7 p.m. | N/A | 0.4 ppb (0) | -0.7 ppb (0) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 49.0 ppb (38) | 0.18 ppb (2) | 30.0 μg/m3 (27) | 3.0 μg/m3 (12) | 38.0 | |
| May 22, 2019, 6 p.m. | N/A | 0.4 ppb (0) | -0.8 ppb (0) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 48.0 ppb (37) | 0.17 ppb (2) | 36.0 μg/m3 (33) | 3.0 μg/m3 (12) | 37.0 | |
| May 22, 2019, 5 p.m. | N/A | 0.3 ppb (0) | -1.3 ppb (0) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 46.0 ppb (35) | 0.17 ppb (2) | 38.0 μg/m3 (35) | 6.0 μg/m3 (25) | 35.0 | |
| May 22, 2019, 4 p.m. | N/A | 0.5 ppb (0) | -0.8 ppb (0) | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 43.0 ppb (33) | 0.18 ppb (2) | 42.0 μg/m3 (38) | 9.0 μg/m3 (38) | 38.0 | |
| May 22, 2019, 3 p.m. | N/A | 0.6 ppb (1) | -0.2 ppb (0) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 42.0 ppb (32) | 0.18 ppb (2) | 44.0 μg/m3 (40) | 9.0 μg/m3 (38) | 40.0 | |
| May 22, 2019, 2 p.m. | N/A | 1.0 ppb (1) | 2.0 ppb (2) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 38.0 ppb (29) | 0.19 ppb (2) | 52.0 μg/m3 (47) | 8.0 μg/m3 (33) | 47.0 | |
| May 22, 2019, 1 p.m. | N/A | 0.4 ppb (0) | 2.8 ppb (3) | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 37.0 ppb (28) | 0.2 ppb (2) | 55.0 μg/m3 (50) | 8.0 μg/m3 (33) | 50.0 | |
| May 22, 2019, noon | N/A | 0.0 ppb (0) | 4.3 ppb (4) | 8.0 ppb (7) | N/A | 1.0 ppb (1) | 36.0 ppb (28) | 0.21 ppb (2) | 64.0 μg/m3 (54) | 16.0 μg/m3 (59) | 59.0 | |
| May 22, 2019, 11 a.m. | N/A | 0.0 ppb (0) | 1.1 ppb (1) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 39.0 ppb (30) | 0.19 ppb (2) | 73.0 μg/m3 (59) | 12.0 μg/m3 (50) | 59.0 | |
| May 22, 2019, 10 a.m. | N/A | 0.0 ppb (0) | -1.1 ppb (0) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | 0.15 ppb (2) | 53.0 μg/m3 (48) | 14.0 μg/m3 (54) | 54.0 | |
| May 22, 2019, 9 a.m. | N/A | 0.0 ppb (0) | -0.4 ppb (0) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 44.0 ppb (34) | 0.16 ppb (2) | 68.0 μg/m3 (56) | 12.0 μg/m3 (50) | 56.0 | |
| May 22, 2019, 8 a.m. | N/A | -0.1 ppb (0) | 0.4 ppb (0) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | N/A | 0.16 ppb (2) | 75.0 μg/m3 (60) | 14.0 μg/m3 (54) | 60.0 | |
| May 22, 2019, 7 a.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | N/A | 0.17 ppb (2) | 88.0 μg/m3 (66) | 14.0 μg/m3 (54) | 66.0 | |
| May 22, 2019, 6 a.m. | N/A | 0.0 ppb (0) | 0.5 ppb (0) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 48.0 ppb (37) | 0.17 ppb (2) | 72.0 μg/m3 (58) | 16.0 μg/m3 (59) | 59.0 | |
| May 22, 2019, 5 a.m. | N/A | -0.1 ppb (0) | 1.6 ppb (1) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | N/A | 0.18 ppb (2) | 77.0 μg/m3 (61) | 17.0 μg/m3 (61) | 61.0 | |
| May 22, 2019, 4 a.m. | N/A | 0.0 ppb (0) | 2.9 ppb (3) | 7.0 ppb (6) | N/A | 1.0 ppb (1) | N/A | 0.19 ppb (2) | 58.0 μg/m3 (52) | 12.0 μg/m3 (50) | 52.0 | |
| May 22, 2019, 3 a.m. | N/A | 0.0 ppb (0) | 1.2 ppb (1) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 57.0 ppb (44) | 0.18 ppb (2) | 62.0 μg/m3 (54) | 8.0 μg/m3 (33) | 54.0 | |
| May 22, 2019, 2 a.m. | N/A | 0.0 ppb (0) | 0.5 ppb (0) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 60.0 ppb (46) | 0.16 ppb (2) | 61.0 μg/m3 (53) | 8.0 μg/m3 (33) | 53.0 | |
| May 22, 2019, 1 a.m. | N/A | 0.1 ppb (0) | -0.2 ppb (0) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 56.0 ppb (43) | 0.15 ppb (2) | 74.0 μg/m3 (60) | 5.0 μg/m3 (21) | 60.0 | |
| May 22, 2019, midnight | N/A | 0.2 ppb (0) | -1.1 ppb (0) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | N/A | 0.14 ppb (2) | 44.0 μg/m3 (40) | 2.0 μg/m3 (8) | 40.0 | |
| May 21, 2019, 11 p.m. | N/A | 0.2 ppb (0) | -1.4 ppb (0) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | N/A | 0.14 ppb (2) | 53.0 μg/m3 (48) | 0.0 μg/m3 (0) | 48.0 | |
| May 21, 2019, 10 p.m. | N/A | 0.2 ppb (0) | -1.6 ppb (0) | N/A | N/A | 1.0 ppb (1) | 51.0 ppb (39) | 0.14 ppb (2) | 52.0 μg/m3 (47) | 2.0 μg/m3 (8) | 47.0 | |
| May 21, 2019, 9 p.m. | N/A | 0.3 ppb (0) | -1.8 ppb (0) | 2.0 ppb (2) | N/A | N/A | 51.0 ppb (39) | 0.14 ppb (2) | 34.0 μg/m3 (31) | 3.0 μg/m3 (12) | 39.0 | |
| May 21, 2019, 8 p.m. | N/A | 0.1 ppb (0) | -2.2 ppb (0) | 1.0 ppb (1) | N/A | N/A | N/A | 0.14 ppb (2) | 25.0 μg/m3 (23) | 1.0 μg/m3 (4) | 23.0 | |
| May 21, 2019, 7 p.m. | N/A | 0.2 ppb (0) | -1.5 ppb (0) | 2.0 ppb (2) | N/A | N/A | 52.0 ppb (40) | 0.14 ppb (2) | 30.0 μg/m3 (27) | 3.0 μg/m3 (12) | 40.0 | |
| May 21, 2019, 6 p.m. | N/A | N/A | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 53.0 ppb (41) | 0.14 ppb (2) | 22.0 μg/m3 (20) | 7.0 μg/m3 (29) | 41.0 | |
| May 21, 2019, 5 p.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 50.0 ppb (38) | 0.15 ppb (2) | 31.0 μg/m3 (28) | 7.0 μg/m3 (29) | 38.0 | |
| May 21, 2019, 4 p.m. | N/A | 2.2 ppb (2) | 5.4 ppb (5) | 7.0 ppb (6) | N/A | 1.0 ppb (1) | 42.0 ppb (32) | N/A | 35.0 μg/m3 (32) | 8.0 μg/m3 (33) | 33.0 | |
| May 21, 2019, 3 p.m. | N/A | 2.3 ppb (2) | 5.0 ppb (5) | 7.0 ppb (6) | N/A | 1.0 ppb (1) | 38.0 ppb (29) | 0.31 ppb (3) | 57.0 μg/m3 (51) | 8.0 μg/m3 (33) | 51.0 | |
| May 21, 2019, 2 p.m. | N/A | 1.4 ppb (1) | 2.2 ppb (2) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 37.0 ppb (28) | 0.23 ppb (3) | 29.0 μg/m3 (26) | 5.0 μg/m3 (21) | 28.0 | |
| May 21, 2019, 1 p.m. | N/A | 0.7 ppb (1) | 2.6 ppb (2) | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 34.0 ppb (26) | 0.23 ppb (3) | 20.0 μg/m3 (18) | 2.0 μg/m3 (8) | 26.0 | |
| May 21, 2019, noon | N/A | 0.0 ppb (0) | 1.8 ppb (2) | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 30.0 ppb (23) | 0.21 ppb (2) | 8.0 μg/m3 (7) | 3.0 μg/m3 (12) | 23.0 | |
| May 21, 2019, 11 a.m. | N/A | 0.0 ppb (0) | 1.7 ppb (2) | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 28.0 ppb (22) | 0.2 ppb (2) | 7.0 μg/m3 (6) | 2.0 μg/m3 (8) | 22.0 | |
| May 21, 2019, 10 a.m. | N/A | 0.0 ppb (0) | 0.7 ppb (1) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 30.0 ppb (23) | 0.2 ppb (2) | 8.0 μg/m3 (7) | 3.0 μg/m3 (12) | 23.0 | |
| May 21, 2019, 9 a.m. | N/A | 0.0 ppb (0) | -0.4 ppb (0) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 34.0 ppb (26) | 0.2 ppb (2) | 8.0 μg/m3 (7) | 6.0 μg/m3 (25) | 26.0 | |
| May 21, 2019, 8 a.m. | N/A | 0.0 ppb (0) | -0.1 ppb (0) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 36.0 ppb (28) | 0.2 ppb (2) | 9.0 μg/m3 (8) | 3.0 μg/m3 (12) | 28.0 | |
| May 21, 2019, 7 a.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 39.0 ppb (30) | 0.19 ppb (2) | 12.0 μg/m3 (11) | 0.0 μg/m3 (0) | 30.0 | |
| May 21, 2019, 6 a.m. | N/A | 0.0 ppb (0) | 1.2 ppb (1) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 39.0 ppb (30) | 0.21 ppb (2) | 16.0 μg/m3 (15) | 2.0 μg/m3 (8) | 30.0 | |
| May 21, 2019, 5 a.m. | N/A | 0.0 ppb (0) | 9.5 ppb (9) | 13.0 ppb (12) | N/A | 0.0 ppb (0) | 33.0 ppb (25) | 0.29 ppb (3) | 22.0 μg/m3 (20) | 5.0 μg/m3 (21) | 25.0 | |
| May 21, 2019, 4 a.m. | N/A | 0.0 ppb (0) | 11.4 ppb (11) | 16.0 ppb (15) | N/A | 1.0 ppb (1) | 33.0 ppb (25) | 0.32 ppb (4) | 16.0 μg/m3 (15) | 2.0 μg/m3 (8) | 25.0 | |
| May 21, 2019, 3 a.m. | N/A | 0.0 ppb (0) | 5.2 ppb (5) | 10.0 ppb (9) | N/A | 0.0 ppb (0) | 41.0 ppb (32) | 0.28 ppb (3) | 16.0 μg/m3 (15) | 0.0 μg/m3 (0) | 32.0 | |
| May 21, 2019, 2 a.m. | N/A | 0.0 ppb (0) | -0.4 ppb (0) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 50.0 ppb (38) | 0.17 ppb (2) | 16.0 μg/m3 (15) | 0.0 μg/m3 (0) | 38.0 | |
| May 21, 2019, 1 a.m. | N/A | 0.0 ppb (0) | -1.9 ppb (0) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 53.0 ppb (41) | 0.17 ppb (2) | 13.0 μg/m3 (12) | -2.0 μg/m3 (0) | 41.0 | |
| May 21, 2019, midnight | N/A | 0.1 ppb (0) | -1.0 ppb (0) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | N/A | 0.17 ppb (2) | 16.0 μg/m3 (15) | 1.0 μg/m3 (4) | 15.0 | |
| May 20, 2019, 11 p.m. | N/A | 0.2 ppb (0) | -1.4 ppb (0) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | N/A | 0.16 ppb (2) | 18.0 μg/m3 (16) | 2.0 μg/m3 (8) | 16.0 | |
| May 20, 2019, 10 p.m. | N/A | 0.3 ppb (0) | -2.0 ppb (0) | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 53.0 ppb (41) | 0.15 ppb (2) | 23.0 μg/m3 (21) | -2.0 μg/m3 (0) | 41.0 | |
| May 20, 2019, 9 p.m. | N/A | 0.3 ppb (0) | -2.2 ppb (0) | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 51.0 ppb (39) | 0.15 ppb (2) | 25.0 μg/m3 (23) | 2.0 μg/m3 (8) | 39.0 | |
| May 20, 2019, 8 p.m. | N/A | 0.3 ppb (0) | -2.3 ppb (0) | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 50.0 ppb (38) | 0.16 ppb (2) | 38.0 μg/m3 (35) | 8.0 μg/m3 (33) | 38.0 | |
| May 20, 2019, 7 p.m. | N/A | 0.3 ppb (0) | -2.2 ppb (0) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 50.0 ppb (38) | 0.16 ppb (2) | 25.0 μg/m3 (23) | 3.0 μg/m3 (12) | 38.0 | |
| May 20, 2019, 6 p.m. | N/A | 0.3 ppb (0) | -2.0 ppb (0) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 49.0 ppb (38) | 0.17 ppb (2) | 23.0 μg/m3 (21) | 6.0 μg/m3 (25) | 38.0 | |
| May 20, 2019, 5 p.m. | N/A | 0.5 ppb (0) | -1.6 ppb (0) | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 47.0 ppb (36) | 0.17 ppb (2) | 25.0 μg/m3 (23) | 6.0 μg/m3 (25) | 36.0 | |
| May 20, 2019, 4 p.m. | N/A | 0.4 ppb (0) | -1.1 ppb (0) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 46.0 ppb (35) | 0.18 ppb (2) | 30.0 μg/m3 (27) | 6.0 μg/m3 (25) | 35.0 | |
| May 20, 2019, 3 p.m. | N/A | 0.6 ppb (1) | 0.0 ppb (0) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | 0.19 ppb (2) | 38.0 μg/m3 (35) | 7.0 μg/m3 (29) | 35.0 | |
| May 20, 2019, 2 p.m. | N/A | 0.5 ppb (0) | 1.3 ppb (1) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 42.0 ppb (32) | 0.2 ppb (2) | 29.0 μg/m3 (26) | 2.0 μg/m3 (8) | 32.0 | |
| May 20, 2019, 1 p.m. | N/A | 0.3 ppb (0) | 3.2 ppb (3) | 7.0 ppb (6) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | 0.2 ppb (2) | 34.0 μg/m3 (31) | 5.0 μg/m3 (21) | 31.0 | |
| May 20, 2019, noon | N/A | 0.0 ppb (0) | 1.6 ppb (1) | 6.0 ppb (6) | N/A | 1.0 ppb (1) | 40.0 ppb (31) | 0.19 ppb (2) | 28.0 μg/m3 (25) | 6.0 μg/m3 (25) | 31.0 | |
| May 20, 2019, 11 a.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 43.0 ppb (33) | 0.17 ppb (2) | 33.0 μg/m3 (30) | 7.0 μg/m3 (29) | 33.0 | |
| May 20, 2019, 10 a.m. | N/A | N/A | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 45.0 ppb (35) | 0.16 ppb (2) | 29.0 μg/m3 (26) | 9.0 μg/m3 (38) | 38.0 | |
| May 20, 2019, 9 a.m. | N/A | N/A | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 46.0 ppb (35) | 0.17 ppb (2) | N/A | N/A | 35.0 | |
| May 20, 2019, 8 a.m. | N/A | N/A | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 48.0 ppb (37) | 0.17 ppb (2) | 19.0 μg/m3 (17) | 2.0 μg/m3 (8) | 37.0 | |
| May 20, 2019, 7 a.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 39.0 ppb (30) | 0.17 ppb (2) | 19.0 μg/m3 (17) | 2.0 μg/m3 (8) | 30.0 | |
| May 20, 2019, 6 a.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 39.0 ppb (30) | 0.19 ppb (2) | 14.0 μg/m3 (13) | 5.0 μg/m3 (21) | 30.0 | |
| May 20, 2019, 5 a.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 38.0 ppb (29) | 0.19 ppb (2) | 25.0 μg/m3 (23) | 5.0 μg/m3 (21) | 29.0 | |
| May 20, 2019, 4 a.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 33.0 ppb (25) | 0.22 ppb (2) | 14.0 μg/m3 (13) | 3.0 μg/m3 (12) | 25.0 | |
| May 20, 2019, 3 a.m. | N/A | N/A | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 33.0 ppb (25) | 0.21 ppb (2) | 9.0 μg/m3 (8) | 3.0 μg/m3 (12) | 25.0 | |
| May 20, 2019, 2 a.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 35.0 ppb (27) | 0.2 ppb (2) | 18.0 μg/m3 (16) | 1.0 μg/m3 (4) | 27.0 | |
| May 20, 2019, 1 a.m. | N/A | N/A | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 40.0 ppb (31) | 0.18 ppb (2) | 34.0 μg/m3 (31) | 3.0 μg/m3 (12) | 31.0 | |
| May 20, 2019, midnight | N/A | N/A | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 42.0 ppb (32) | 0.17 ppb (2) | 29.0 μg/m3 (26) | 5.0 μg/m3 (21) | 32.0 | |
| May 19, 2019, 11 p.m. | N/A | N/A | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 44.0 ppb (34) | 0.16 ppb (2) | 16.0 μg/m3 (15) | 6.0 μg/m3 (25) | 34.0 | |
| May 19, 2019, 10 p.m. | N/A | N/A | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 51.0 ppb (39) | 0.18 ppb (2) | 16.0 μg/m3 (15) | 3.0 μg/m3 (12) | 39.0 | |
| May 19, 2019, 9 p.m. | N/A | N/A | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 55.0 ppb (42) | 0.17 ppb (2) | 22.0 μg/m3 (20) | 5.0 μg/m3 (21) | 42.0 | |
| May 19, 2019, 8 p.m. | N/A | N/A | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 55.0 ppb (42) | 0.2 ppb (2) | 29.0 μg/m3 (26) | 6.0 μg/m3 (25) | 42.0 | |
| May 19, 2019, 7 p.m. | N/A | N/A | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 55.0 ppb (42) | 0.19 ppb (2) | N/A | 6.0 μg/m3 (25) | 42.0 | |
| May 19, 2019, 6 p.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 52.0 ppb (40) | 0.21 ppb (2) | N/A | 8.0 μg/m3 (33) | 40.0 | |
| May 19, 2019, 5 p.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 49.0 ppb (38) | 0.23 ppb (3) | N/A | 6.0 μg/m3 (25) | 38.0 | |
| May 19, 2019, 4 p.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 44.0 ppb (34) | 0.22 ppb (2) | N/A | 5.0 μg/m3 (21) | 34.0 | |
| May 19, 2019, 3 p.m. | N/A | N/A | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 38.0 ppb (29) | 0.23 ppb (3) | 24.0 μg/m3 (22) | 6.0 μg/m3 (25) | 29.0 | |
| May 19, 2019, 2 p.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 36.0 ppb (28) | 0.21 ppb (2) | 23.0 μg/m3 (21) | 7.0 μg/m3 (29) | 29.0 | |
| May 19, 2019, 1 p.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 31.0 ppb (24) | 0.21 ppb (2) | 20.0 μg/m3 (18) | 3.0 μg/m3 (12) | 24.0 | |
| May 19, 2019, noon | N/A | N/A | N/A | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 30.0 ppb (23) | 0.23 ppb (3) | 25.0 μg/m3 (23) | 2.0 μg/m3 (8) | 23.0 | |
| May 19, 2019, 11 a.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 44.0 ppb (34) | 0.19 ppb (2) | 18.0 μg/m3 (16) | 5.0 μg/m3 (21) | 34.0 | |
| May 19, 2019, 10 a.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 42.0 ppb (32) | 0.21 ppb (2) | 11.0 μg/m3 (10) | 6.0 μg/m3 (25) | 32.0 | |
| May 19, 2019, 9 a.m. | N/A | N/A | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 44.0 ppb (34) | 0.2 ppb (2) | 16.0 μg/m3 (15) | 3.0 μg/m3 (12) | 34.0 | |
| May 19, 2019, 8 a.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 47.0 ppb (36) | 0.21 ppb (2) | 16.0 μg/m3 (15) | 6.0 μg/m3 (25) | 36.0 | |
| May 19, 2019, 7 a.m. | N/A | N/A | N/A | 9.0 ppb (8) | N/A | 0.0 ppb (0) | N/A | 0.25 ppb (3) | 25.0 μg/m3 (23) | 7.0 μg/m3 (29) | 29.0 | |
| May 19, 2019, 6 a.m. | N/A | N/A | N/A | 25.0 ppb (23) | N/A | 0.0 ppb (0) | 15.0 ppb (12) | 0.47 ppb (5) | 30.0 μg/m3 (27) | 9.0 μg/m3 (38) | 38.0 | |
| May 19, 2019, 5 a.m. | N/A | N/A | N/A | 25.0 ppb (23) | N/A | 0.0 ppb (0) | 14.0 ppb (11) | 0.48 ppb (5) | 30.0 μg/m3 (27) | 6.0 μg/m3 (25) | 27.0 | |
| May 19, 2019, 4 a.m. | N/A | N/A | N/A | 20.0 ppb (19) | N/A | 0.0 ppb (0) | 23.0 ppb (18) | 0.4 ppb (4) | 20.0 μg/m3 (18) | 0.0 μg/m3 (0) | 19.0 | |
| May 19, 2019, 3 a.m. | N/A | N/A | N/A | 11.0 ppb (10) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | 0.3 ppb (3) | 18.0 μg/m3 (16) | 6.0 μg/m3 (25) | 31.0 | |
| May 19, 2019, 2 a.m. | N/A | N/A | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 50.0 ppb (38) | 0.28 ppb (3) | 24.0 μg/m3 (22) | 14.0 μg/m3 (54) | 54.0 | |
| May 19, 2019, 1 a.m. | N/A | N/A | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 54.0 ppb (42) | 0.21 ppb (2) | 28.0 μg/m3 (25) | 14.0 μg/m3 (54) | 54.0 | |
| May 19, 2019, midnight | N/A | N/A | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 56.0 ppb (43) | 0.15 ppb (2) | 11.0 μg/m3 (10) | 6.0 μg/m3 (25) | 43.0 | |
| May 18, 2019, 11 p.m. | N/A | N/A | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (1) | 57.0 ppb (44) | 0.15 ppb (2) | 8.0 μg/m3 (7) | 2.0 μg/m3 (8) | 44.0 | |
| May 18, 2019, 10 p.m. | N/A | N/A | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 59.0 ppb (45) | 0.16 ppb (2) | 7.0 μg/m3 (6) | 3.0 μg/m3 (12) | 45.0 | |
| May 18, 2019, 9 p.m. | N/A | N/A | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 58.0 ppb (45) | 0.16 ppb (2) | 8.0 μg/m3 (7) | 3.0 μg/m3 (12) | 45.0 | |
| May 18, 2019, 8 p.m. | N/A | N/A | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 57.0 ppb (44) | 0.15 ppb (2) | 11.0 μg/m3 (10) | 2.0 μg/m3 (8) | 44.0 | |
| May 18, 2019, 7 p.m. | N/A | N/A | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 55.0 ppb (42) | 0.17 ppb (2) | 9.0 μg/m3 (8) | 3.0 μg/m3 (12) | 42.0 | |
| May 18, 2019, 6 p.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 53.0 ppb (41) | 0.16 ppb (2) | 17.0 μg/m3 (15) | 3.0 μg/m3 (12) | 41.0 | |
| May 18, 2019, 5 p.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 51.0 ppb (39) | 0.18 ppb (2) | 24.0 μg/m3 (22) | 2.0 μg/m3 (8) | 39.0 | |
| May 18, 2019, 4 p.m. | N/A | N/A | N/A | 6.0 ppb (6) | N/A | 1.0 ppb (1) | 45.0 ppb (35) | 0.19 ppb (2) | 24.0 μg/m3 (22) | 3.0 μg/m3 (12) | 35.0 | |
| May 18, 2019, 3 p.m. | N/A | N/A | N/A | 11.0 ppb (10) | N/A | 1.0 ppb (1) | 36.0 ppb (28) | 0.24 ppb (3) | 25.0 μg/m3 (23) | 5.0 μg/m3 (21) | 28.0 | |
| May 18, 2019, 2 p.m. | N/A | N/A | N/A | 18.0 ppb (17) | N/A | 1.0 ppb (1) | 23.0 ppb (18) | 0.33 ppb (4) | 34.0 μg/m3 (31) | 7.0 μg/m3 (29) | 31.0 | |
| May 18, 2019, 1 p.m. | N/A | N/A | N/A | 18.0 ppb (17) | N/A | 0.0 ppb (0) | 12.0 ppb (9) | 0.42 ppb (5) | 27.0 μg/m3 (25) | 7.0 μg/m3 (29) | 29.0 | |
| May 18, 2019, noon | N/A | N/A | N/A | 18.0 ppb (17) | N/A | 1.0 ppb (1) | 7.0 ppb (5) | 0.43 ppb (5) | 29.0 μg/m3 (26) | 8.0 μg/m3 (33) | 33.0 | |
| May 18, 2019, 11 a.m. | N/A | N/A | N/A | 23.0 ppb (21) | N/A | 1.0 ppb (1) | 6.0 ppb (5) | 0.43 ppb (5) | 24.0 μg/m3 (22) | 3.0 μg/m3 (12) | 22.0 | |
| May 18, 2019, 10 a.m. | N/A | N/A | N/A | 19.0 ppb (18) | N/A | 0.0 ppb (0) | 11.0 ppb (8) | 0.39 ppb (4) | 28.0 μg/m3 (25) | 5.0 μg/m3 (21) | 25.0 | |
| May 18, 2019, 9 a.m. | N/A | N/A | N/A | 18.0 ppb (17) | N/A | 0.0 ppb (0) | 16.0 ppb (12) | 0.33 ppb (4) | 29.0 μg/m3 (26) | 6.0 μg/m3 (25) | 26.0 | |
| May 18, 2019, 8 a.m. | N/A | N/A | N/A | 11.0 ppb (10) | N/A | 0.0 ppb (0) | 28.0 ppb (22) | 0.26 ppb (3) | 18.0 μg/m3 (16) | 6.0 μg/m3 (25) | 25.0 | |
| May 18, 2019, 7 a.m. | N/A | N/A | N/A | 11.0 ppb (10) | N/A | 0.0 ppb (0) | 34.0 ppb (26) | 0.25 ppb (3) | 24.0 μg/m3 (22) | 3.0 μg/m3 (12) | 26.0 | |
| May 18, 2019, 6 a.m. | N/A | N/A | N/A | 14.0 ppb (13) | N/A | 1.0 ppb (1) | 31.0 ppb (24) | 0.28 ppb (3) | 18.0 μg/m3 (16) | 1.0 μg/m3 (4) | 24.0 | |
| May 18, 2019, 5 a.m. | N/A | N/A | N/A | 11.0 ppb (10) | N/A | 1.0 ppb (1) | 37.0 ppb (28) | 0.26 ppb (3) | 8.0 μg/m3 (7) | 3.0 μg/m3 (12) | 28.0 | |
| May 18, 2019, 4 a.m. | N/A | N/A | N/A | 7.0 ppb (6) | N/A | 0.0 ppb (0) | 44.0 ppb (34) | 0.21 ppb (2) | 7.0 μg/m3 (6) | 5.0 μg/m3 (21) | 34.0 | |
| May 18, 2019, 3 a.m. | N/A | N/A | N/A | 8.0 ppb (7) | N/A | 0.0 ppb (0) | 41.0 ppb (32) | 0.22 ppb (2) | 17.0 μg/m3 (15) | 2.0 μg/m3 (8) | 32.0 | |
| May 18, 2019, 2 a.m. | N/A | N/A | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 46.0 ppb (35) | 0.18 ppb (2) | 16.0 μg/m3 (15) | 3.0 μg/m3 (12) | 35.0 | |
| May 18, 2019, 1 a.m. | N/A | N/A | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 48.0 ppb (37) | 0.16 ppb (2) | 13.0 μg/m3 (12) | 6.0 μg/m3 (25) | 37.0 | |
| May 18, 2019, midnight | N/A | N/A | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 49.0 ppb (38) | 0.16 ppb (2) | 14.0 μg/m3 (13) | 5.0 μg/m3 (21) | 38.0 | |
| May 17, 2019, 11 p.m. | N/A | N/A | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 48.0 ppb (37) | 0.16 ppb (2) | 19.0 μg/m3 (17) | 3.0 μg/m3 (12) | 37.0 | |
| May 17, 2019, 10 p.m. | N/A | N/A | N/A | 2.0 ppb (2) | N/A | 1.0 ppb (1) | 49.0 ppb (38) | 0.16 ppb (2) | 18.0 μg/m3 (16) | 2.0 μg/m3 (8) | 38.0 | |
| May 17, 2019, 9 p.m. | N/A | N/A | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 51.0 ppb (39) | 0.16 ppb (2) | 20.0 μg/m3 (18) | 2.0 μg/m3 (8) | 39.0 | |
| May 17, 2019, 8 p.m. | N/A | N/A | N/A | 1.0 ppb (1) | N/A | 1.0 ppb (1) | 52.0 ppb (40) | 0.15 ppb (2) | 29.0 μg/m3 (26) | 2.0 μg/m3 (8) | 40.0 | |
| May 17, 2019, 7 p.m. | N/A | N/A | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 53.0 ppb (41) | 0.15 ppb (2) | 22.0 μg/m3 (20) | 6.0 μg/m3 (25) | 41.0 | |
| May 17, 2019, 6 p.m. | N/A | N/A | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 55.0 ppb (42) | 0.16 ppb (2) | 33.0 μg/m3 (30) | 9.0 μg/m3 (38) | 42.0 | |
| May 17, 2019, 5 p.m. | N/A | 1.3 ppb (1) | 3.4 ppb (3) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 52.0 ppb (40) | 0.18 ppb (2) | 46.0 μg/m3 (42) | 8.0 μg/m3 (33) | 42.0 | |
| May 17, 2019, 4 p.m. | N/A | 1.3 ppb (1) | 3.1 ppb (3) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 48.0 ppb (37) | 0.19 ppb (2) | 41.0 μg/m3 (37) | 7.0 μg/m3 (29) | 37.0 | |
| May 17, 2019, 3 p.m. | N/A | 1.6 ppb (1) | 3.7 ppb (3) | 6.0 ppb (6) | N/A | 1.0 ppb (1) | 45.0 ppb (35) | 0.19 ppb (2) | 38.0 μg/m3 (35) | 9.0 μg/m3 (38) | 38.0 | |
| May 17, 2019, 2 p.m. | N/A | 1.2 ppb (1) | 3.7 ppb (3) | 7.0 ppb (6) | N/A | 0.0 ppb (0) | 42.0 ppb (32) | 0.2 ppb (2) | 38.0 μg/m3 (35) | 16.0 μg/m3 (59) | 59.0 | |
| May 17, 2019, 1 p.m. | N/A | 0.6 ppb (1) | 5.1 ppb (5) | 8.0 ppb (7) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | 0.2 ppb (2) | 34.0 μg/m3 (31) | 8.0 μg/m3 (33) | 33.0 | |
| May 17, 2019, noon | N/A | 0.0 ppb (0) | 4.3 ppb (4) | 8.0 ppb (7) | N/A | 0.0 ppb (0) | 39.0 ppb (30) | 0.21 ppb (2) | 38.0 μg/m3 (35) | 8.0 μg/m3 (33) | 35.0 | |
| May 17, 2019, 11 a.m. | N/A | 0.0 ppb (0) | 0.4 ppb (0) | 5.0 ppb (5) | N/A | 1.0 ppb (1) | 42.0 ppb (32) | 0.17 ppb (2) | 47.0 μg/m3 (43) | 8.0 μg/m3 (33) | 43.0 | |
| May 17, 2019, 10 a.m. | N/A | 0.0 ppb (0) | -1.3 ppb (0) | 3.0 ppb (3) | N/A | 1.0 ppb (1) | 46.0 ppb (35) | 0.15 ppb (2) | 68.0 μg/m3 (56) | 8.0 μg/m3 (33) | 56.0 | |
| May 17, 2019, 9 a.m. | N/A | 0.0 ppb (0) | -0.9 ppb (0) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 47.0 ppb (36) | 0.16 ppb (2) | 55.0 μg/m3 (50) | 9.0 μg/m3 (38) | 50.0 | |
| May 17, 2019, 8 a.m. | N/A | 0.0 ppb (0) | -2.2 ppb (0) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 48.0 ppb (37) | 0.15 ppb (2) | 80.0 μg/m3 (62) | 16.0 μg/m3 (59) | 62.0 | |
| May 17, 2019, 7 a.m. | N/A | -0.1 ppb (0) | -2.3 ppb (0) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 42.0 ppb (32) | 0.16 ppb (2) | 77.0 μg/m3 (61) | 11.0 μg/m3 (46) | 61.0 | |
| May 17, 2019, 6 a.m. | N/A | -0.1 ppb (0) | -1.9 ppb (0) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 32.0 ppb (25) | 0.17 ppb (2) | 78.0 μg/m3 (62) | 13.0 μg/m3 (52) | 62.0 | |
| May 17, 2019, 5 a.m. | N/A | 0.0 ppb (0) | -1.1 ppb (0) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 30.0 ppb (23) | 0.18 ppb (2) | 67.0 μg/m3 (56) | 8.0 μg/m3 (33) | 56.0 | |
| May 17, 2019, 4 a.m. | N/A | 0.0 ppb (0) | -0.3 ppb (0) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 32.0 ppb (25) | 0.19 ppb (2) | 73.0 μg/m3 (59) | 16.0 μg/m3 (59) | 59.0 | |
| May 17, 2019, 3 a.m. | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 4.0 ppb (4) | N/A | 1.0 ppb (1) | 34.0 ppb (26) | 0.18 ppb (2) | 53.0 μg/m3 (48) | 5.0 μg/m3 (21) | 48.0 | |
| May 17, 2019, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 44.0 μg/m3 (40) | 7.0 μg/m3 (29) | 40.0 |