Newark NJ, US: 40.720989, -74.192894
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| May 23, 2019, 9 a.m. | 12.0 ppb (11) | 0.0 ppb (0) | N/A | 13.0 ppb (12) | N/A | N/A | 20.0 ppb (15) | N/A | N/A | 4.3 μg/m3 (18) | 18.0 | |
| May 23, 2019, 8 a.m. | 14.0 ppb (13) | 1.0 ppb (1) | N/A | 13.0 ppb (12) | N/A | 0.0 ppb (0) | N/A | 0.16 ppb (2) | N/A | 1.5 μg/m3 (6) | 13.0 | |
| May 23, 2019, 7 a.m. | 13.0 ppb (12) | 0.0 ppb (0) | N/A | 13.0 ppb (12) | N/A | 0.0 ppb (0) | N/A | 0.17 ppb (2) | N/A | -0.1 μg/m3 (0) | 12.0 | |
| May 23, 2019, 6 a.m. | 13.0 ppb (12) | 0.0 ppb (0) | N/A | 13.0 ppb (12) | N/A | 0.0 ppb (0) | 26.0 ppb (20) | 0.17 ppb (2) | N/A | -1.3 μg/m3 (0) | 20.0 | |
| May 23, 2019, 5 a.m. | 12.0 ppb (11) | 0.0 ppb (0) | N/A | 12.0 ppb (11) | N/A | 0.0 ppb (0) | 28.0 ppb (22) | 0.18 ppb (2) | N/A | N/A | 22.0 | |
| May 23, 2019, 4 a.m. | 10.0 ppb (9) | 0.0 ppb (0) | N/A | 10.0 ppb (9) | N/A | 0.0 ppb (0) | 30.0 ppb (23) | 0.17 ppb (2) | N/A | 3.7 μg/m3 (15) | 23.0 | |
| May 23, 2019, 3 a.m. | 11.0 ppb (10) | 0.0 ppb (0) | N/A | 11.0 ppb (10) | N/A | 0.0 ppb (0) | 29.0 ppb (22) | 0.18 ppb (2) | N/A | 5.8 μg/m3 (24) | 24.0 | |
| May 23, 2019, 2 a.m. | 12.0 ppb (11) | 0.0 ppb (0) | N/A | 12.0 ppb (11) | N/A | 0.0 ppb (0) | 30.0 ppb (23) | 0.2 ppb (2) | N/A | 8.0 μg/m3 (33) | 33.0 | |
| May 23, 2019, 1 a.m. | 16.0 ppb (15) | 0.0 ppb (0) | N/A | 16.0 ppb (15) | N/A | 0.0 ppb (0) | 32.0 ppb (25) | 0.24 ppb (3) | N/A | 10.2 μg/m3 (42) | 42.0 | |
| May 23, 2019, midnight | 20.0 ppb (19) | 0.0 ppb (0) | N/A | 21.0 ppb (19) | N/A | 0.0 ppb (0) | 37.0 ppb (28) | 0.26 ppb (3) | N/A | 9.3 μg/m3 (39) | 39.0 | |
| May 22, 2019, 11 p.m. | 24.0 ppb (22) | 0.0 ppb (0) | N/A | 24.0 ppb (22) | N/A | 0.0 ppb (0) | 38.0 ppb (29) | 0.24 ppb (3) | N/A | 10.4 μg/m3 (43) | 43.0 | |
| May 22, 2019, 10 p.m. | 12.0 ppb (11) | 0.0 ppb (0) | N/A | 12.0 ppb (11) | N/A | 0.0 ppb (0) | 52.0 ppb (40) | 0.19 ppb (2) | N/A | 8.2 μg/m3 (34) | 40.0 | |
| May 22, 2019, 9 p.m. | 15.0 ppb (14) | 5.0 ppb (5) | N/A | 10.0 ppb (9) | N/A | 0.0 ppb (0) | 51.0 ppb (39) | 0.16 ppb (2) | N/A | N/A | 39.0 | |
| May 22, 2019, 8 p.m. | 3.0 ppb (3) | 0.0 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 53.0 ppb (41) | 0.14 ppb (2) | N/A | 3.7 μg/m3 (15) | 41.0 | |
| May 22, 2019, 7 p.m. | 3.0 ppb (3) | 0.0 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 50.0 ppb (38) | 0.13 ppb (1) | N/A | 3.4 μg/m3 (14) | 38.0 | |
| May 22, 2019, 6 p.m. | 3.0 ppb (3) | 0.0 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 50.0 ppb (38) | 0.13 ppb (1) | N/A | 3.7 μg/m3 (15) | 38.0 | |
| May 22, 2019, 5 p.m. | 3.0 ppb (3) | 0.0 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 47.0 ppb (36) | 0.15 ppb (2) | N/A | 3.7 μg/m3 (15) | 36.0 | |
| May 22, 2019, 4 p.m. | 6.0 ppb (6) | 1.0 ppb (1) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 44.0 ppb (34) | 0.16 ppb (2) | N/A | 5.7 μg/m3 (24) | 34.0 | |
| May 22, 2019, 3 p.m. | 5.0 ppb (5) | 1.0 ppb (1) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 41.0 ppb (32) | 0.15 ppb (2) | N/A | 5.9 μg/m3 (25) | 32.0 | |
| May 22, 2019, 2 p.m. | 6.0 ppb (6) | 1.0 ppb (1) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 37.0 ppb (28) | 0.14 ppb (2) | N/A | 6.3 μg/m3 (26) | 28.0 | |
| May 22, 2019, 1 p.m. | 7.0 ppb (6) | 1.0 ppb (1) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 35.0 ppb (27) | 0.15 ppb (2) | N/A | N/A | 27.0 | |
| May 22, 2019, noon | 16.0 ppb (15) | 5.0 ppb (5) | N/A | 10.0 ppb (9) | N/A | 0.0 ppb (0) | 28.0 ppb (22) | 0.22 ppb (2) | N/A | 2.5 μg/m3 (10) | 22.0 | |
| May 22, 2019, 11 a.m. | 21.0 ppb (19) | 6.0 ppb (6) | N/A | 14.0 ppb (13) | N/A | 0.0 ppb (0) | 26.0 ppb (20) | 0.2 ppb (2) | N/A | 1.3 μg/m3 (5) | 20.0 | |
| May 22, 2019, 10 a.m. | 14.0 ppb (13) | 2.0 ppb (2) | N/A | 11.0 ppb (10) | N/A | 0.0 ppb (0) | 26.0 ppb (20) | N/A | N/A | 0.1 μg/m3 (0) | 20.0 | |
| May 22, 2019, 9 a.m. | 9.0 ppb (8) | 1.0 ppb (1) | N/A | 7.0 ppb (6) | N/A | N/A | 29.0 ppb (22) | N/A | N/A | 0.1 μg/m3 (0) | 22.0 | |
| May 22, 2019, 8 a.m. | 6.0 ppb (6) | 1.0 ppb (1) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | N/A | 0.14 ppb (2) | N/A | 0.4 μg/m3 (2) | 6.0 | |
| May 22, 2019, 7 a.m. | 6.0 ppb (6) | 0.0 ppb (0) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | N/A | 0.14 ppb (2) | N/A | 0.4 μg/m3 (2) | 6.0 | |
| May 22, 2019, 6 a.m. | 5.0 ppb (5) | 0.0 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 33.0 ppb (25) | 0.13 ppb (1) | N/A | -0.9 μg/m3 (0) | 25.0 | |
| May 22, 2019, 5 a.m. | 4.0 ppb (4) | 0.0 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 35.0 ppb (27) | 0.13 ppb (1) | N/A | N/A | 27.0 | |
| May 22, 2019, 4 a.m. | 5.0 ppb (5) | 0.0 ppb (0) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 34.0 ppb (26) | 0.15 ppb (2) | N/A | 0.0 μg/m3 (0) | 26.0 | |
| May 22, 2019, 3 a.m. | 6.0 ppb (6) | 0.0 ppb (0) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 34.0 ppb (26) | 0.16 ppb (2) | N/A | 0.1 μg/m3 (0) | 26.0 | |
| May 22, 2019, 2 a.m. | 5.0 ppb (5) | 0.0 ppb (0) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 36.0 ppb (28) | 0.16 ppb (2) | N/A | 1.3 μg/m3 (5) | 28.0 | |
| May 22, 2019, 1 a.m. | 5.0 ppb (5) | 0.0 ppb (0) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 36.0 ppb (28) | 0.17 ppb (2) | N/A | 4.8 μg/m3 (20) | 28.0 | |
| May 22, 2019, midnight | 5.0 ppb (5) | 0.0 ppb (0) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 38.0 ppb (29) | 0.16 ppb (2) | N/A | 5.9 μg/m3 (25) | 29.0 | |
| May 21, 2019, 11 p.m. | 3.0 ppb (3) | 0.0 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 41.0 ppb (32) | 0.15 ppb (2) | N/A | 5.3 μg/m3 (22) | 32.0 | |
| May 21, 2019, 10 p.m. | 3.0 ppb (3) | 0.0 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 42.0 ppb (32) | 0.15 ppb (2) | N/A | 3.9 μg/m3 (16) | 32.0 | |
| May 21, 2019, 9 p.m. | 3.0 ppb (3) | 0.0 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 42.0 ppb (32) | 0.15 ppb (2) | N/A | N/A | 32.0 | |
| May 21, 2019, 8 p.m. | 4.0 ppb (4) | 1.0 ppb (1) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | 0.15 ppb (2) | N/A | 0.5 μg/m3 (2) | 31.0 | |
| May 21, 2019, 7 p.m. | 3.0 ppb (3) | 0.0 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 37.0 ppb (28) | 0.15 ppb (2) | N/A | 1.4 μg/m3 (6) | 28.0 | |
| May 21, 2019, 6 p.m. | 3.0 ppb (3) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 35.0 ppb (27) | 0.15 ppb (2) | N/A | 2.5 μg/m3 (10) | 27.0 | |
| May 21, 2019, 5 p.m. | 3.0 ppb (3) | 0.0 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 34.0 ppb (26) | 0.15 ppb (2) | N/A | 3.8 μg/m3 (16) | 26.0 | |
| May 21, 2019, 4 p.m. | 3.0 ppb (3) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 32.0 ppb (25) | 0.14 ppb (2) | N/A | 4.3 μg/m3 (18) | 25.0 | |
| May 21, 2019, 3 p.m. | 5.0 ppb (5) | 1.0 ppb (1) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 31.0 ppb (24) | 0.14 ppb (2) | N/A | 4.2 μg/m3 (18) | 24.0 | |
| May 21, 2019, 2 p.m. | 5.0 ppb (5) | 1.0 ppb (1) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 32.0 ppb (25) | 0.14 ppb (2) | N/A | 1.8 μg/m3 (8) | 25.0 | |
| May 21, 2019, 1 p.m. | 5.0 ppb (5) | 1.0 ppb (1) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 33.0 ppb (25) | 0.14 ppb (2) | N/A | N/A | 25.0 | |
| May 21, 2019, noon | 8.0 ppb (7) | 4.0 ppb (4) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 31.0 ppb (24) | 0.16 ppb (2) | N/A | -0.7 μg/m3 (0) | 24.0 | |
| May 21, 2019, 11 a.m. | 6.0 ppb (6) | 1.0 ppb (1) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 27.0 ppb (21) | 0.16 ppb (2) | N/A | -1.4 μg/m3 (0) | 21.0 | |
| May 21, 2019, 10 a.m. | 5.0 ppb (5) | 1.0 ppb (1) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 26.0 ppb (20) | N/A | N/A | -1.5 μg/m3 (0) | 20.0 | |
| May 21, 2019, 9 a.m. | 4.0 ppb (4) | 1.0 ppb (1) | N/A | 3.0 ppb (3) | N/A | N/A | 29.0 ppb (22) | N/A | N/A | -0.5 μg/m3 (0) | 22.0 | |
| May 21, 2019, 8 a.m. | 5.0 ppb (5) | 1.0 ppb (1) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | N/A | 0.15 ppb (2) | N/A | -1.3 μg/m3 (0) | 5.0 | |
| May 21, 2019, 7 a.m. | 3.0 ppb (3) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | 0.14 ppb (2) | N/A | -2.0 μg/m3 (0) | 3.0 | |
| May 21, 2019, 6 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | N/A | 1.0 ppb (1) | N/A | 0.0 ppb (0) | 36.0 ppb (28) | 0.15 ppb (2) | N/A | -2.2 μg/m3 (0) | 28.0 | |
| May 21, 2019, 5 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 34.0 ppb (26) | 0.15 ppb (2) | N/A | N/A | 26.0 | |
| May 21, 2019, 4 a.m. | 1.0 ppb (1) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 35.0 ppb (27) | 0.16 ppb (2) | N/A | 2.0 μg/m3 (8) | 27.0 | |
| May 21, 2019, 3 a.m. | 3.0 ppb (3) | 0.0 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | 0.17 ppb (2) | N/A | 0.5 μg/m3 (2) | 31.0 | |
| May 21, 2019, 2 a.m. | 4.0 ppb (4) | 0.0 ppb (0) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 47.0 ppb (36) | 0.19 ppb (2) | N/A | 0.3 μg/m3 (1) | 36.0 | |
| May 21, 2019, 1 a.m. | 5.0 ppb (5) | 0.0 ppb (0) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 48.0 ppb (37) | 0.2 ppb (2) | N/A | 2.5 μg/m3 (10) | 37.0 | |
| May 21, 2019, midnight | 4.0 ppb (4) | 0.0 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 52.0 ppb (40) | 0.21 ppb (2) | N/A | 2.7 μg/m3 (11) | 40.0 | |
| May 20, 2019, 11 p.m. | 4.0 ppb (4) | 0.0 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 51.0 ppb (39) | 0.23 ppb (3) | N/A | -1.0 μg/m3 (0) | 39.0 | |
| May 20, 2019, 10 p.m. | 4.0 ppb (4) | 0.0 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 53.0 ppb (41) | 0.23 ppb (3) | N/A | -0.9 μg/m3 (0) | 41.0 | |
| May 20, 2019, 9 p.m. | 6.0 ppb (6) | 0.0 ppb (0) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 52.0 ppb (40) | 0.23 ppb (3) | N/A | N/A | 40.0 | |
| May 20, 2019, 8 p.m. | 5.0 ppb (5) | 0.0 ppb (0) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 53.0 ppb (41) | 0.22 ppb (2) | N/A | N/A | 41.0 | |
| May 20, 2019, 7 p.m. | 5.0 ppb (5) | 0.0 ppb (0) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 54.0 ppb (42) | 0.22 ppb (2) | N/A | N/A | 42.0 | |
| May 20, 2019, 6 p.m. | 5.0 ppb (5) | 0.0 ppb (0) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 53.0 ppb (41) | 0.22 ppb (2) | N/A | N/A | 41.0 | |
| May 20, 2019, 5 p.m. | 5.0 ppb (5) | 0.0 ppb (0) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 50.0 ppb (38) | 0.23 ppb (3) | N/A | N/A | 38.0 | |
| May 20, 2019, 4 p.m. | 4.0 ppb (4) | 0.0 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 49.0 ppb (38) | 0.22 ppb (2) | N/A | N/A | 38.0 | |
| May 20, 2019, 3 p.m. | 4.0 ppb (4) | 0.0 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 45.0 ppb (35) | 0.22 ppb (2) | N/A | 11.4 μg/m3 (48) | 48.0 | |
| May 20, 2019, 2 p.m. | 6.0 ppb (6) | 0.0 ppb (0) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | 0.23 ppb (3) | N/A | 14.1 μg/m3 (54) | 54.0 | |
| May 20, 2019, 1 p.m. | 8.0 ppb (7) | 1.0 ppb (1) | N/A | 7.0 ppb (6) | N/A | 0.0 ppb (0) | 34.0 ppb (26) | 0.26 ppb (3) | N/A | N/A | 26.0 | |
| May 20, 2019, noon | 20.0 ppb (19) | 5.0 ppb (5) | N/A | 14.0 ppb (13) | N/A | N/A | 21.0 ppb (16) | 0.37 ppb (4) | N/A | 12.3 μg/m3 (51) | 51.0 | |
| May 20, 2019, 11 a.m. | 28.0 ppb (26) | 6.0 ppb (6) | N/A | 22.0 ppb (20) | N/A | N/A | 13.0 ppb (10) | N/A | N/A | 12.0 μg/m3 (50) | 50.0 | |
| May 20, 2019, 10 a.m. | 34.0 ppb (31) | 5.0 ppb (5) | N/A | 29.0 ppb (27) | N/A | 0.0 ppb (0) | 9.0 ppb (7) | N/A | N/A | 10.3 μg/m3 (43) | 43.0 | |
| May 20, 2019, 9 a.m. | 23.0 ppb (21) | 0.0 ppb (0) | N/A | 22.0 ppb (20) | N/A | N/A | N/A | N/A | N/A | 7.7 μg/m3 (32) | 32.0 | |
| May 20, 2019, 8 a.m. | 28.0 ppb (26) | 0.0 ppb (0) | N/A | 28.0 ppb (26) | N/A | 0.0 ppb (0) | N/A | 0.31 ppb (3) | N/A | 6.4 μg/m3 (27) | 27.0 | |
| May 20, 2019, 7 a.m. | 20.0 ppb (19) | 0.0 ppb (0) | N/A | 20.0 ppb (19) | N/A | 0.0 ppb (0) | N/A | 0.26 ppb (3) | N/A | 7.6 μg/m3 (32) | 32.0 | |
| May 20, 2019, 6 a.m. | 14.0 ppb (13) | 0.0 ppb (0) | N/A | 15.0 ppb (14) | N/A | 0.0 ppb (0) | 23.0 ppb (18) | 0.26 ppb (3) | N/A | 11.5 μg/m3 (48) | 48.0 | |
| May 20, 2019, 5 a.m. | 5.0 ppb (5) | 0.0 ppb (0) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 35.0 ppb (27) | 0.22 ppb (2) | N/A | N/A | 27.0 | |
| May 20, 2019, 4 a.m. | 8.0 ppb (7) | 0.0 ppb (0) | N/A | 9.0 ppb (8) | N/A | 0.0 ppb (0) | 32.0 ppb (25) | 0.24 ppb (3) | N/A | 16.1 μg/m3 (59) | 59.0 | |
| May 20, 2019, 3 a.m. | 7.0 ppb (6) | 0.0 ppb (0) | N/A | 7.0 ppb (6) | N/A | 0.0 ppb (0) | 36.0 ppb (28) | 0.23 ppb (3) | N/A | 18.8 μg/m3 (64) | 64.0 | |
| May 20, 2019, 2 a.m. | 9.0 ppb (8) | 0.0 ppb (0) | N/A | 9.0 ppb (8) | N/A | 0.0 ppb (0) | 35.0 ppb (27) | 0.27 ppb (3) | N/A | 19.9 μg/m3 (67) | 67.0 | |
| May 20, 2019, 1 a.m. | 8.0 ppb (7) | 0.0 ppb (0) | N/A | 8.0 ppb (7) | N/A | 0.0 ppb (0) | 37.0 ppb (28) | 0.26 ppb (3) | N/A | 22.2 μg/m3 (72) | 72.0 | |
| May 20, 2019, midnight | 7.0 ppb (6) | 0.0 ppb (0) | N/A | 8.0 ppb (7) | N/A | 0.0 ppb (0) | 38.0 ppb (29) | 0.27 ppb (3) | N/A | 22.9 μg/m3 (73) | 73.0 | |
| May 19, 2019, 11 p.m. | 7.0 ppb (6) | 0.0 ppb (0) | N/A | 7.0 ppb (6) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | 0.26 ppb (3) | N/A | 18.8 μg/m3 (64) | 64.0 | |
| May 19, 2019, 10 p.m. | 5.0 ppb (5) | 0.0 ppb (0) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 44.0 ppb (34) | 0.24 ppb (3) | N/A | 14.9 μg/m3 (56) | 56.0 | |
| May 19, 2019, 9 p.m. | 10.0 ppb (9) | 0.0 ppb (0) | N/A | 9.0 ppb (8) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | 0.26 ppb (3) | N/A | N/A | 33.0 | |
| May 19, 2019, 8 p.m. | 12.0 ppb (11) | 1.0 ppb (1) | N/A | 11.0 ppb (10) | N/A | 0.0 ppb (0) | 44.0 ppb (34) | 0.26 ppb (3) | N/A | 14.8 μg/m3 (56) | 56.0 | |
| May 19, 2019, 7 p.m. | 10.0 ppb (9) | 1.0 ppb (1) | N/A | 8.0 ppb (7) | N/A | 0.0 ppb (0) | 45.0 ppb (35) | 0.23 ppb (3) | N/A | 9.9 μg/m3 (41) | 41.0 | |
| May 19, 2019, 6 p.m. | 9.0 ppb (8) | 1.0 ppb (1) | N/A | 8.0 ppb (7) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | 0.23 ppb (3) | N/A | 6.3 μg/m3 (26) | 33.0 | |
| May 19, 2019, 5 p.m. | 9.0 ppb (8) | 1.0 ppb (1) | N/A | 7.0 ppb (6) | N/A | 0.0 ppb (0) | 45.0 ppb (35) | 0.2 ppb (2) | N/A | 7.4 μg/m3 (31) | 35.0 | |
| May 19, 2019, 4 p.m. | 14.0 ppb (13) | 3.0 ppb (3) | N/A | 11.0 ppb (10) | N/A | 0.0 ppb (0) | 42.0 ppb (32) | 0.21 ppb (2) | N/A | 14.0 μg/m3 (54) | 54.0 | |
| May 19, 2019, 3 p.m. | 12.0 ppb (11) | 2.0 ppb (2) | N/A | 10.0 ppb (9) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | 0.21 ppb (2) | N/A | 15.2 μg/m3 (57) | 57.0 | |
| May 19, 2019, 2 p.m. | 15.0 ppb (14) | 3.0 ppb (3) | N/A | 12.0 ppb (11) | N/A | 0.0 ppb (0) | 36.0 ppb (28) | 0.22 ppb (2) | N/A | 13.0 μg/m3 (52) | 52.0 | |
| May 19, 2019, 1 p.m. | 8.0 ppb (7) | 1.0 ppb (1) | N/A | 7.0 ppb (6) | N/A | 0.0 ppb (0) | 34.0 ppb (26) | 0.22 ppb (2) | N/A | N/A | 26.0 | |
| May 19, 2019, noon | 9.0 ppb (8) | 0.0 ppb (0) | N/A | 8.0 ppb (7) | N/A | 0.0 ppb (0) | 35.0 ppb (27) | 0.19 ppb (2) | N/A | 8.0 μg/m3 (33) | 33.0 | |
| May 19, 2019, 11 a.m. | 8.0 ppb (7) | 0.0 ppb (0) | N/A | 8.0 ppb (7) | N/A | 0.0 ppb (0) | 35.0 ppb (27) | 0.21 ppb (2) | N/A | 8.2 μg/m3 (34) | 34.0 | |
| May 19, 2019, 10 a.m. | 7.0 ppb (6) | 0.0 ppb (0) | N/A | 7.0 ppb (6) | N/A | 0.0 ppb (0) | 31.0 ppb (24) | N/A | N/A | 8.2 μg/m3 (34) | 34.0 | |
| May 19, 2019, 9 a.m. | 8.0 ppb (7) | 0.0 ppb (0) | N/A | 8.0 ppb (7) | N/A | N/A | 30.0 ppb (23) | N/A | N/A | 6.0 μg/m3 (25) | 25.0 | |
| May 19, 2019, 8 a.m. | 11.0 ppb (10) | 0.0 ppb (0) | N/A | 12.0 ppb (11) | N/A | 0.0 ppb (0) | N/A | 0.2 ppb (2) | N/A | 3.8 μg/m3 (16) | 16.0 | |
| May 19, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | 0.21 ppb (2) | N/A | 2.3 μg/m3 (10) | 10.0 | |
| May 19, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 34.0 ppb (26) | 0.21 ppb (2) | N/A | 2.4 μg/m3 (10) | 26.0 | |
| May 19, 2019, 5 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | 37.0 ppb (28) | 0.22 ppb (2) | N/A | N/A | 28.0 | |
| May 19, 2019, 4 a.m. | 10.0 ppb (9) | 0.0 ppb (0) | N/A | 11.0 ppb (10) | N/A | 0.0 ppb (0) | 32.0 ppb (25) | 0.21 ppb (2) | N/A | 5.2 μg/m3 (22) | 25.0 | |
| May 19, 2019, 3 a.m. | 17.0 ppb (16) | 0.0 ppb (0) | N/A | 17.0 ppb (16) | N/A | 0.0 ppb (0) | 24.0 ppb (18) | 0.27 ppb (3) | N/A | 6.9 μg/m3 (29) | 29.0 | |
| May 19, 2019, 2 a.m. | 13.0 ppb (12) | 0.0 ppb (0) | N/A | 13.0 ppb (12) | N/A | 0.0 ppb (0) | 31.0 ppb (24) | 0.25 ppb (3) | N/A | 7.6 μg/m3 (32) | 32.0 | |
| May 19, 2019, 1 a.m. | 22.0 ppb (20) | 0.0 ppb (0) | N/A | 22.0 ppb (20) | N/A | 0.0 ppb (0) | 26.0 ppb (20) | 0.27 ppb (3) | N/A | 10.3 μg/m3 (43) | 43.0 | |
| May 19, 2019, midnight | 24.0 ppb (22) | 0.0 ppb (0) | N/A | 24.0 ppb (22) | N/A | 0.0 ppb (0) | 26.0 ppb (20) | 0.27 ppb (3) | N/A | 12.6 μg/m3 (51) | 51.0 | |
| May 18, 2019, 11 p.m. | 21.0 ppb (19) | 0.0 ppb (0) | N/A | 21.0 ppb (19) | N/A | 0.0 ppb (0) | 35.0 ppb (27) | 0.25 ppb (3) | N/A | 12.2 μg/m3 (50) | 50.0 | |
| May 18, 2019, 10 p.m. | 23.0 ppb (21) | 2.0 ppb (2) | N/A | 21.0 ppb (19) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | 0.25 ppb (3) | N/A | 10.9 μg/m3 (45) | 45.0 | |
| May 18, 2019, 9 p.m. | 19.0 ppb (18) | 1.0 ppb (1) | N/A | 17.0 ppb (16) | N/A | 0.0 ppb (0) | 47.0 ppb (36) | 0.24 ppb (3) | N/A | N/A | 36.0 | |
| May 18, 2019, 8 p.m. | 10.0 ppb (9) | 0.0 ppb (0) | N/A | 10.0 ppb (9) | N/A | 0.0 ppb (0) | 52.0 ppb (40) | 0.2 ppb (2) | N/A | 2.6 μg/m3 (11) | 40.0 | |
| May 18, 2019, 7 p.m. | 3.0 ppb (3) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 50.0 ppb (38) | 0.16 ppb (2) | N/A | 1.4 μg/m3 (6) | 38.0 | |
| May 18, 2019, 6 p.m. | 3.0 ppb (3) | 0.0 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 49.0 ppb (38) | 0.13 ppb (1) | N/A | 3.4 μg/m3 (14) | 38.0 | |
| May 18, 2019, 5 p.m. | 2.0 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 47.0 ppb (36) | 0.14 ppb (2) | N/A | 3.0 μg/m3 (12) | 36.0 | |
| May 18, 2019, 4 p.m. | 2.0 ppb (2) | 0.0 ppb (0) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 44.0 ppb (34) | 0.13 ppb (1) | N/A | 2.0 μg/m3 (8) | 34.0 | |
| May 18, 2019, 3 p.m. | 8.0 ppb (7) | 3.0 ppb (3) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | 0.15 ppb (2) | N/A | 1.9 μg/m3 (8) | 31.0 | |
| May 18, 2019, 2 p.m. | 10.0 ppb (9) | 5.0 ppb (5) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 38.0 ppb (29) | 0.15 ppb (2) | N/A | 2.2 μg/m3 (9) | 29.0 | |
| May 18, 2019, 1 p.m. | 5.0 ppb (5) | 1.0 ppb (1) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 36.0 ppb (28) | 0.15 ppb (2) | N/A | N/A | 28.0 | |
| May 18, 2019, noon | 10.0 ppb (9) | 3.0 ppb (3) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 34.0 ppb (26) | 0.22 ppb (2) | N/A | 1.1 μg/m3 (5) | 26.0 | |
| May 18, 2019, 11 a.m. | 5.0 ppb (5) | 0.0 ppb (0) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 36.0 ppb (28) | 0.16 ppb (2) | N/A | 0.6 μg/m3 (2) | 28.0 | |
| May 18, 2019, 10 a.m. | 8.0 ppb (7) | 1.0 ppb (1) | N/A | 7.0 ppb (6) | N/A | 0.0 ppb (0) | 36.0 ppb (28) | N/A | N/A | 1.3 μg/m3 (5) | 28.0 | |
| May 18, 2019, 9 a.m. | 4.0 ppb (4) | 0.0 ppb (0) | N/A | 5.0 ppb (5) | N/A | N/A | 42.0 ppb (32) | N/A | N/A | 1.1 μg/m3 (5) | 32.0 | |
| May 18, 2019, 8 a.m. | 6.0 ppb (6) | 0.0 ppb (0) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | 0.19 ppb (2) | N/A | 1.2 μg/m3 (5) | 6.0 | |
| May 18, 2019, 7 a.m. | 5.0 ppb (5) | 0.0 ppb (0) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | N/A | 0.17 ppb (2) | N/A | 0.8 μg/m3 (3) | 5.0 | |
| May 18, 2019, 6 a.m. | 5.0 ppb (5) | 0.0 ppb (0) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 47.0 ppb (36) | 0.17 ppb (2) | N/A | 3.6 μg/m3 (15) | 36.0 | |
| May 18, 2019, 5 a.m. | 6.0 ppb (6) | 0.0 ppb (0) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 48.0 ppb (37) | 0.18 ppb (2) | N/A | N/A | 37.0 | |
| May 18, 2019, 4 a.m. | 3.0 ppb (3) | 0.0 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 45.0 ppb (35) | 0.19 ppb (2) | N/A | 19.0 μg/m3 (65) | 65.0 | |
| May 18, 2019, 3 a.m. | 4.0 ppb (4) | 0.0 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | 0.21 ppb (2) | N/A | 16.4 μg/m3 (59) | 59.0 | |
| May 18, 2019, 2 a.m. | 13.0 ppb (12) | 0.0 ppb (0) | N/A | 13.0 ppb (12) | N/A | 0.0 ppb (0) | 37.0 ppb (28) | 0.34 ppb (4) | N/A | 12.1 μg/m3 (50) | 50.0 | |
| May 18, 2019, 1 a.m. | 12.0 ppb (11) | 0.0 ppb (0) | N/A | 12.0 ppb (11) | N/A | 0.0 ppb (0) | 45.0 ppb (35) | 0.31 ppb (3) | N/A | 11.6 μg/m3 (48) | 48.0 | |
| May 18, 2019, midnight | 16.0 ppb (15) | 0.0 ppb (0) | N/A | 16.0 ppb (15) | N/A | 0.0 ppb (0) | 44.0 ppb (34) | 0.31 ppb (3) | N/A | 13.0 μg/m3 (52) | 52.0 | |
| May 17, 2019, 11 p.m. | 11.0 ppb (10) | 0.0 ppb (0) | N/A | 11.0 ppb (10) | N/A | 0.0 ppb (0) | 52.0 ppb (40) | 0.28 ppb (3) | N/A | 13.2 μg/m3 (53) | 53.0 | |
| May 17, 2019, 10 p.m. | 8.0 ppb (7) | 0.0 ppb (0) | N/A | 8.0 ppb (7) | N/A | 0.0 ppb (0) | 55.0 ppb (42) | 0.25 ppb (3) | N/A | 11.4 μg/m3 (48) | 48.0 | |
| May 17, 2019, 9 p.m. | 8.0 ppb (7) | 0.0 ppb (0) | N/A | 8.0 ppb (7) | N/A | 0.0 ppb (0) | 53.0 ppb (41) | 0.25 ppb (3) | N/A | N/A | 41.0 | |
| May 17, 2019, 8 p.m. | 7.0 ppb (6) | 0.0 ppb (0) | N/A | 7.0 ppb (6) | N/A | 0.0 ppb (0) | 56.0 ppb (43) | 0.25 ppb (3) | N/A | 14.2 μg/m3 (55) | 55.0 | |
| May 17, 2019, 7 p.m. | 7.0 ppb (6) | 0.0 ppb (0) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 56.0 ppb (43) | 0.23 ppb (3) | N/A | 18.2 μg/m3 (63) | 63.0 | |
| May 17, 2019, 6 p.m. | 13.0 ppb (12) | 1.0 ppb (1) | N/A | 11.0 ppb (10) | N/A | 0.0 ppb (0) | 51.0 ppb (39) | 0.29 ppb (3) | N/A | 14.2 μg/m3 (55) | 55.0 | |
| May 17, 2019, 5 p.m. | 17.0 ppb (16) | 1.0 ppb (1) | N/A | 15.0 ppb (14) | N/A | 0.0 ppb (0) | 44.0 ppb (34) | 0.3 ppb (3) | N/A | 15.2 μg/m3 (57) | 57.0 | |
| May 17, 2019, 4 p.m. | 13.0 ppb (12) | 0.0 ppb (0) | N/A | 13.0 ppb (12) | N/A | 0.0 ppb (0) | 49.0 ppb (38) | 0.27 ppb (3) | N/A | 18.3 μg/m3 (63) | 63.0 | |
| May 17, 2019, 3 p.m. | 10.0 ppb (9) | 1.0 ppb (1) | N/A | 9.0 ppb (8) | N/A | 0.0 ppb (0) | 51.0 ppb (39) | 0.24 ppb (3) | N/A | 17.2 μg/m3 (61) | 61.0 | |
| May 17, 2019, 2 p.m. | 13.0 ppb (12) | 2.0 ppb (2) | N/A | 11.0 ppb (10) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | 0.27 ppb (3) | N/A | 16.0 μg/m3 (59) | 59.0 | |
| May 17, 2019, 1 p.m. | 20.0 ppb (19) | 4.0 ppb (4) | N/A | 15.0 ppb (14) | N/A | 0.0 ppb (0) | 35.0 ppb (27) | 0.3 ppb (3) | N/A | N/A | 27.0 | |
| May 17, 2019, noon | 19.0 ppb (18) | 3.0 ppb (3) | N/A | 15.0 ppb (14) | N/A | 0.0 ppb (0) | 33.0 ppb (25) | 0.29 ppb (3) | N/A | 13.6 μg/m3 (53) | 53.0 | |
| May 17, 2019, 11 a.m. | 30.0 ppb (28) | 6.0 ppb (6) | N/A | 23.0 ppb (21) | N/A | 0.0 ppb (0) | 21.0 ppb (16) | 0.37 ppb (4) | N/A | 12.3 μg/m3 (51) | 51.0 | |
| May 17, 2019, 10 a.m. | 37.0 ppb (34) | 6.0 ppb (6) | N/A | 31.0 ppb (29) | N/A | 0.0 ppb (0) | 11.0 ppb (8) | N/A | N/A | 13.5 μg/m3 (53) | 53.0 | |
| May 17, 2019, 9 a.m. | 43.0 ppb (40) | 6.0 ppb (6) | N/A | 37.0 ppb (34) | N/A | N/A | 5.0 ppb (4) | N/A | N/A | 13.9 μg/m3 (54) | 54.0 | |
| May 17, 2019, 8 a.m. | 38.0 ppb (35) | 3.0 ppb (3) | N/A | 35.0 ppb (32) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 13.9 μg/m3 (54) | 54.0 | |
| May 17, 2019, 7 a.m. | 44.0 ppb (41) | 5.0 ppb (5) | N/A | 38.0 ppb (35) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 13.5 μg/m3 (53) | 53.0 | |
| May 17, 2019, 6 a.m. | 42.0 ppb (39) | 3.0 ppb (3) | N/A | 38.0 ppb (35) | N/A | 0.0 ppb (0) | 5.0 ppb (4) | 0.46 ppb (5) | N/A | 15.5 μg/m3 (57) | 57.0 | |
| May 17, 2019, 5 a.m. | 52.0 ppb (48) | 6.0 ppb (6) | N/A | 45.0 ppb (42) | N/A | 0.0 ppb (0) | 1.0 ppb (1) | 0.54 ppb (6) | N/A | N/A | 48.0 | |
| May 17, 2019, 4 a.m. | 113.0 ppb (102) | 64.0 ppb (61) | N/A | 49.0 ppb (45) | N/A | 0.0 ppb (0) | 1.0 ppb (1) | 1.09 ppb (12) | N/A | 14.3 μg/m3 (55) | 102.0 | |
| May 17, 2019, 3 a.m. | 135.0 ppb (107) | 88.0 ppb (86) | N/A | 47.0 ppb (44) | N/A | 0.0 ppb (0) | 1.0 ppb (1) | 1.54 ppb (17) | N/A | 13.8 μg/m3 (54) | 107.0 | |
| May 17, 2019, 2 a.m. | 124.0 ppb (104) | 77.0 ppb (74) | N/A | 46.0 ppb (43) | N/A | 0.0 ppb (0) | 1.0 ppb (1) | 1.61 ppb (18) | N/A | 11.1 μg/m3 (46) | 104.0 | |
| May 17, 2019, 1 a.m. | 111.0 ppb (102) | 60.0 ppb (56) | N/A | 51.0 ppb (47) | N/A | 0.0 ppb (0) | 2.0 ppb (2) | 1.42 ppb (16) | N/A | 7.9 μg/m3 (33) | 102.0 | |
| May 17, 2019, midnight | 33.0 ppb (31) | 1.0 ppb (1) | N/A | 31.0 ppb (29) | N/A | 0.0 ppb (0) | 19.0 ppb (15) | 0.56 ppb (6) | N/A | 6.7 μg/m3 (28) | 31.0 | |
| May 16, 2019, 11 p.m. | 10.0 ppb (9) | 0.0 ppb (0) | N/A | 10.0 ppb (9) | N/A | 0.0 ppb (0) | 45.0 ppb (35) | 0.24 ppb (3) | N/A | 5.7 μg/m3 (24) | 35.0 | |
| May 16, 2019, 10 p.m. | 6.0 ppb (6) | 0.0 ppb (0) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 50.0 ppb (38) | 0.2 ppb (2) | N/A | 4.7 μg/m3 (20) | 38.0 | |
| May 16, 2019, 9 p.m. | 5.0 ppb (5) | 0.0 ppb (0) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 51.0 ppb (39) | 0.18 ppb (2) | N/A | N/A | 39.0 | |
| May 16, 2019, 8 p.m. | 5.0 ppb (5) | 0.0 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 53.0 ppb (41) | 0.18 ppb (2) | N/A | 5.6 μg/m3 (23) | 41.0 | |
| May 16, 2019, 7 p.m. | 4.0 ppb (4) | 0.0 ppb (0) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 52.0 ppb (40) | 0.17 ppb (2) | N/A | N/A | 40.0 | |
| May 16, 2019, 6 p.m. | 3.0 ppb (3) | 0.0 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 53.0 ppb (41) | 0.16 ppb (2) | N/A | N/A | 41.0 | |
| May 16, 2019, 5 p.m. | 3.0 ppb (3) | 0.0 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 52.0 ppb (40) | 0.16 ppb (2) | N/A | N/A | 40.0 | |
| May 16, 2019, 4 p.m. | 3.0 ppb (3) | 0.0 ppb (0) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 53.0 ppb (41) | 0.17 ppb (2) | N/A | N/A | 41.0 | |
| May 16, 2019, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | |
| May 16, 2019, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | |
| May 16, 2019, 1 p.m. | 11.0 ppb (10) | 2.0 ppb (2) | N/A | 8.0 ppb (7) | N/A | 0.0 ppb (0) | 39.0 ppb (30) | 0.23 ppb (3) | N/A | N/A | 30.0 | |
| May 16, 2019, noon | 21.0 ppb (19) | 6.0 ppb (6) | N/A | 14.0 ppb (13) | N/A | 0.0 ppb (0) | 28.0 ppb (22) | 0.3 ppb (3) | N/A | 7.6 μg/m3 (32) | 32.0 | |
| May 16, 2019, 11 a.m. | 35.0 ppb (32) | 9.0 ppb (8) | N/A | 25.0 ppb (23) | N/A | 0.0 ppb (0) | 14.0 ppb (11) | 0.38 ppb (4) | N/A | 6.8 μg/m3 (28) | 32.0 | |
| May 16, 2019, 10 a.m. | 48.0 ppb (44) | 11.0 ppb (10) | N/A | 36.0 ppb (33) | N/A | 0.0 ppb (0) | 6.0 ppb (5) | N/A | N/A | 7.1 μg/m3 (30) | 44.0 |