Elizabeth NJ, US: 40.641441, -74.208366
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| May 23, 2019, 11 p.m. | 56.0 ppb (52) | 25.0 ppb (23) | N/A | 31.0 ppb (29) | N/A | 0.0 ppb (0) | N/A | 0.6 ppb (7) | N/A | 3.7 μg/m3 (15) | 52.0 | |
| May 23, 2019, 10 p.m. | 51.0 ppb (47) | 22.0 ppb (20) | N/A | 28.0 ppb (26) | N/A | 0.0 ppb (0) | N/A | 0.6 ppb (7) | N/A | 1.0 μg/m3 (4) | 47.0 | |
| May 23, 2019, 9 p.m. | 56.0 ppb (52) | 24.0 ppb (22) | N/A | 31.0 ppb (29) | N/A | 0.0 ppb (0) | N/A | 0.6 ppb (7) | N/A | N/A | 52.0 | |
| May 23, 2019, 8 p.m. | 23.0 ppb (21) | 6.0 ppb (6) | N/A | 16.0 ppb (15) | N/A | 0.0 ppb (0) | N/A | 0.5 ppb (6) | N/A | 12.6 μg/m3 (51) | 51.0 | |
| May 23, 2019, 7 p.m. | 26.0 ppb (24) | 10.0 ppb (9) | N/A | 16.0 ppb (15) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 16.7 μg/m3 (60) | 60.0 | |
| May 23, 2019, 6 p.m. | 30.0 ppb (28) | 14.0 ppb (13) | N/A | 16.0 ppb (15) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 5.4 μg/m3 (23) | 28.0 | |
| May 23, 2019, 5 p.m. | 40.0 ppb (37) | 20.0 ppb (19) | N/A | 19.0 ppb (18) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 5.9 μg/m3 (25) | 37.0 | |
| May 23, 2019, 4 p.m. | 53.0 ppb (49) | 30.0 ppb (28) | N/A | 23.0 ppb (21) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 8.4 μg/m3 (35) | 49.0 | |
| May 23, 2019, 3 p.m. | 57.0 ppb (53) | 33.0 ppb (31) | N/A | 23.0 ppb (21) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 8.7 μg/m3 (36) | 53.0 | |
| May 23, 2019, 2 p.m. | 71.0 ppb (68) | 42.0 ppb (39) | N/A | 28.0 ppb (26) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 7.2 μg/m3 (30) | 68.0 | |
| May 23, 2019, 1 p.m. | 93.0 ppb (91) | 60.0 ppb (56) | N/A | 33.0 ppb (31) | N/A | 0.0 ppb (0) | N/A | 0.5 ppb (6) | N/A | N/A | 91.0 | |
| May 23, 2019, noon | 59.0 ppb (55) | 31.0 ppb (29) | N/A | 27.0 ppb (25) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 1.6 μg/m3 (7) | 55.0 | |
| May 23, 2019, 11 a.m. | 81.0 ppb (79) | 47.0 ppb (44) | N/A | 33.0 ppb (31) | N/A | 0.0 ppb (0) | N/A | 0.5 ppb (6) | N/A | 8.1 μg/m3 (34) | 79.0 | |
| May 23, 2019, 10 a.m. | 84.0 ppb (82) | 50.0 ppb (46) | N/A | 33.0 ppb (31) | N/A | 0.0 ppb (0) | N/A | 0.5 ppb (6) | N/A | 12.6 μg/m3 (51) | 82.0 | |
| May 23, 2019, 9 a.m. | 58.0 ppb (54) | 27.0 ppb (25) | N/A | 30.0 ppb (28) | N/A | N/A | N/A | N/A | N/A | 10.8 μg/m3 (45) | 54.0 | |
| May 23, 2019, 8 a.m. | 26.0 ppb (24) | 7.0 ppb (6) | N/A | 19.0 ppb (18) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 7.7 μg/m3 (32) | 32.0 | |
| May 23, 2019, 7 a.m. | 46.0 ppb (43) | 18.0 ppb (17) | N/A | 27.0 ppb (25) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 7.9 μg/m3 (33) | 43.0 | |
| May 23, 2019, 6 a.m. | 27.0 ppb (25) | 8.0 ppb (7) | N/A | 18.0 ppb (17) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 6.0 μg/m3 (25) | 25.0 | |
| May 23, 2019, 5 a.m. | 21.0 ppb (19) | 5.0 ppb (5) | N/A | 15.0 ppb (14) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | N/A | 19.0 | |
| May 23, 2019, 4 a.m. | 15.0 ppb (14) | 4.0 ppb (4) | N/A | 11.0 ppb (10) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 5.0 μg/m3 (21) | 21.0 | |
| May 23, 2019, 3 a.m. | 11.0 ppb (10) | 4.0 ppb (4) | N/A | 7.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 9.4 μg/m3 (39) | 39.0 | |
| May 23, 2019, 2 a.m. | 38.0 ppb (35) | 16.0 ppb (15) | N/A | 22.0 ppb (20) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 14.4 μg/m3 (55) | 55.0 | |
| May 23, 2019, 1 a.m. | 30.0 ppb (28) | 9.0 ppb (8) | N/A | 21.0 ppb (19) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 22.0 μg/m3 (71) | 71.0 | |
| May 23, 2019, midnight | 37.0 ppb (34) | 9.0 ppb (8) | N/A | 28.0 ppb (26) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 18.5 μg/m3 (64) | 64.0 | |
| May 22, 2019, 11 p.m. | 44.0 ppb (41) | 11.0 ppb (10) | N/A | 33.0 ppb (31) | N/A | 0.0 ppb (0) | N/A | 0.5 ppb (6) | N/A | 12.4 μg/m3 (51) | 51.0 | |
| May 22, 2019, 10 p.m. | 52.0 ppb (48) | 18.0 ppb (17) | N/A | 34.0 ppb (31) | N/A | 0.0 ppb (0) | N/A | 0.5 ppb (6) | N/A | 10.4 μg/m3 (43) | 48.0 | |
| May 22, 2019, 9 p.m. | 49.0 ppb (45) | 18.0 ppb (17) | N/A | 30.0 ppb (28) | N/A | 0.0 ppb (0) | N/A | 0.5 ppb (6) | N/A | N/A | 45.0 | |
| May 22, 2019, 8 p.m. | 31.0 ppb (29) | 11.0 ppb (10) | N/A | 19.0 ppb (18) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 2.5 μg/m3 (10) | 29.0 | |
| May 22, 2019, 7 p.m. | 13.0 ppb (12) | 4.0 ppb (4) | N/A | 8.0 ppb (7) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 1.0 μg/m3 (4) | 12.0 | |
| May 22, 2019, 6 p.m. | 25.0 ppb (23) | 9.0 ppb (8) | N/A | 15.0 ppb (14) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 0.3 μg/m3 (1) | 23.0 | |
| May 22, 2019, 5 p.m. | 23.0 ppb (21) | 9.0 ppb (8) | N/A | 13.0 ppb (12) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 0.3 μg/m3 (1) | 21.0 | |
| May 22, 2019, 4 p.m. | 12.0 ppb (11) | 5.0 ppb (5) | N/A | 7.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 0.8 μg/m3 (3) | 11.0 | |
| May 22, 2019, 3 p.m. | 12.0 ppb (11) | 5.0 ppb (5) | N/A | 7.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 1.3 μg/m3 (5) | 11.0 | |
| May 22, 2019, 2 p.m. | 17.0 ppb (16) | 8.0 ppb (7) | N/A | 9.0 ppb (8) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 1.1 μg/m3 (5) | 16.0 | |
| May 22, 2019, 1 p.m. | 22.0 ppb (20) | 10.0 ppb (9) | N/A | 12.0 ppb (11) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | N/A | 20.0 | |
| May 22, 2019, noon | 25.0 ppb (23) | 10.0 ppb (9) | N/A | 14.0 ppb (13) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 1.5 μg/m3 (6) | 23.0 | |
| May 22, 2019, 11 a.m. | 35.0 ppb (32) | 15.0 ppb (14) | N/A | 20.0 ppb (19) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 3.9 μg/m3 (16) | 32.0 | |
| May 22, 2019, 10 a.m. | 36.0 ppb (33) | 11.0 ppb (10) | N/A | 24.0 ppb (22) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 7.6 μg/m3 (32) | 33.0 | |
| May 22, 2019, 9 a.m. | 40.0 ppb (37) | 13.0 ppb (12) | N/A | 27.0 ppb (25) | N/A | N/A | N/A | N/A | N/A | 7.0 μg/m3 (29) | 37.0 | |
| May 22, 2019, 8 a.m. | 16.0 ppb (15) | 3.0 ppb (3) | N/A | 13.0 ppb (12) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 6.5 μg/m3 (27) | 27.0 | |
| May 22, 2019, 7 a.m. | 10.0 ppb (9) | 2.0 ppb (2) | N/A | 8.0 ppb (7) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 6.1 μg/m3 (25) | 25.0 | |
| May 22, 2019, 6 a.m. | 9.0 ppb (8) | 2.0 ppb (2) | N/A | 7.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 6.0 μg/m3 (25) | 25.0 | |
| May 22, 2019, 5 a.m. | 8.0 ppb (7) | 1.0 ppb (1) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | N/A | 7.0 | |
| May 22, 2019, 4 a.m. | 8.0 ppb (7) | 1.0 ppb (1) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 5.2 μg/m3 (22) | 22.0 | |
| May 22, 2019, 3 a.m. | 6.0 ppb (6) | 1.0 ppb (1) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 5.4 μg/m3 (23) | 23.0 | |
| May 22, 2019, 2 a.m. | 8.0 ppb (7) | 2.0 ppb (2) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 6.2 μg/m3 (26) | 26.0 | |
| May 22, 2019, 1 a.m. | 7.0 ppb (6) | 1.0 ppb (1) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 8.0 μg/m3 (33) | 33.0 | |
| May 22, 2019, midnight | 7.0 ppb (6) | 1.0 ppb (1) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 8.1 μg/m3 (34) | 34.0 | |
| May 21, 2019, 11 p.m. | 10.0 ppb (9) | 2.0 ppb (2) | N/A | 7.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 6.2 μg/m3 (26) | 26.0 | |
| May 21, 2019, 10 p.m. | 9.0 ppb (8) | 3.0 ppb (3) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 5.6 μg/m3 (23) | 23.0 | |
| May 21, 2019, 9 p.m. | 10.0 ppb (9) | 3.0 ppb (3) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | N/A | 9.0 | |
| May 21, 2019, 8 p.m. | 11.0 ppb (10) | 4.0 ppb (4) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 0.9 μg/m3 (4) | 10.0 | |
| May 21, 2019, 7 p.m. | 12.0 ppb (11) | 5.0 ppb (5) | N/A | 7.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 3.0 μg/m3 (12) | 12.0 | |
| May 21, 2019, 6 p.m. | 16.0 ppb (15) | 7.0 ppb (6) | N/A | 8.0 ppb (7) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 7.3 μg/m3 (30) | 30.0 | |
| May 21, 2019, 5 p.m. | 12.0 ppb (11) | 6.0 ppb (6) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 2.5 μg/m3 (10) | 11.0 | |
| May 21, 2019, 4 p.m. | 10.0 ppb (9) | 5.0 ppb (5) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 0.4 μg/m3 (2) | 9.0 | |
| May 21, 2019, 3 p.m. | 13.0 ppb (12) | 6.0 ppb (6) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 1.1 μg/m3 (5) | 12.0 | |
| May 21, 2019, 2 p.m. | 13.0 ppb (12) | 7.0 ppb (6) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 2.0 μg/m3 (8) | 12.0 | |
| May 21, 2019, 1 p.m. | 14.0 ppb (13) | 7.0 ppb (6) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | N/A | 13.0 | |
| May 21, 2019, noon | 16.0 ppb (15) | 8.0 ppb (7) | N/A | 8.0 ppb (7) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 0.9 μg/m3 (4) | 15.0 | |
| May 21, 2019, 11 a.m. | 14.0 ppb (13) | 5.0 ppb (5) | N/A | 8.0 ppb (7) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 1.4 μg/m3 (6) | 13.0 | |
| May 21, 2019, 10 a.m. | 18.0 ppb (17) | 6.0 ppb (6) | N/A | 11.0 ppb (10) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 3.1 μg/m3 (13) | 17.0 | |
| May 21, 2019, 9 a.m. | 11.0 ppb (10) | 3.0 ppb (3) | N/A | 8.0 ppb (7) | N/A | N/A | N/A | N/A | N/A | 5.5 μg/m3 (23) | 23.0 | |
| May 21, 2019, 8 a.m. | 9.0 ppb (8) | 2.0 ppb (2) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 6.6 μg/m3 (28) | 28.0 | |
| May 21, 2019, 7 a.m. | 8.0 ppb (7) | 2.0 ppb (2) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 8.1 μg/m3 (34) | 34.0 | |
| May 21, 2019, 6 a.m. | 7.0 ppb (6) | 2.0 ppb (2) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 10.8 μg/m3 (45) | 45.0 | |
| May 21, 2019, 5 a.m. | 5.0 ppb (5) | 1.0 ppb (1) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | N/A | 5.0 | |
| May 21, 2019, 4 a.m. | 5.0 ppb (5) | 1.0 ppb (1) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 10.9 μg/m3 (45) | 45.0 | |
| May 21, 2019, 3 a.m. | 6.0 ppb (6) | 1.0 ppb (1) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 12.2 μg/m3 (50) | 50.0 | |
| May 21, 2019, 2 a.m. | 15.0 ppb (14) | 3.0 ppb (3) | N/A | 12.0 ppb (11) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 15.1 μg/m3 (57) | 57.0 | |
| May 21, 2019, 1 a.m. | 12.0 ppb (11) | 2.0 ppb (2) | N/A | 9.0 ppb (8) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 16.8 μg/m3 (60) | 60.0 | |
| May 21, 2019, midnight | 15.0 ppb (14) | 3.0 ppb (3) | N/A | 12.0 ppb (11) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 14.2 μg/m3 (55) | 55.0 | |
| May 20, 2019, 11 p.m. | 14.0 ppb (13) | 3.0 ppb (3) | N/A | 10.0 ppb (9) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 16.9 μg/m3 (60) | 60.0 | |
| May 20, 2019, 10 p.m. | 24.0 ppb (22) | 7.0 ppb (6) | N/A | 16.0 ppb (15) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 22.4 μg/m3 (72) | 72.0 | |
| May 20, 2019, 9 p.m. | 17.0 ppb (16) | 6.0 ppb (6) | N/A | 11.0 ppb (10) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | N/A | 16.0 | |
| May 20, 2019, 8 p.m. | 24.0 ppb (22) | 9.0 ppb (8) | N/A | 15.0 ppb (14) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | N/A | 22.0 | |
| May 20, 2019, 7 p.m. | 24.0 ppb (22) | 9.0 ppb (8) | N/A | 14.0 ppb (13) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | N/A | 22.0 | |
| May 20, 2019, 6 p.m. | 30.0 ppb (28) | 12.0 ppb (11) | N/A | 18.0 ppb (17) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | N/A | 28.0 | |
| May 20, 2019, 5 p.m. | 24.0 ppb (22) | 9.0 ppb (8) | N/A | 14.0 ppb (13) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | N/A | 22.0 | |
| May 20, 2019, 4 p.m. | 23.0 ppb (21) | 9.0 ppb (8) | N/A | 13.0 ppb (12) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | N/A | 21.0 | |
| May 20, 2019, 3 p.m. | 23.0 ppb (21) | 9.0 ppb (8) | N/A | 13.0 ppb (12) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | N/A | 21.0 | |
| May 20, 2019, 2 p.m. | 21.0 ppb (19) | 9.0 ppb (8) | N/A | 12.0 ppb (11) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | N/A | 19.0 | |
| May 20, 2019, 1 p.m. | 24.0 ppb (22) | 10.0 ppb (9) | N/A | 13.0 ppb (12) | N/A | 0.0 ppb (0) | N/A | 0.5 ppb (6) | N/A | N/A | 22.0 | |
| May 20, 2019, noon | 31.0 ppb (29) | 13.0 ppb (12) | N/A | 17.0 ppb (16) | N/A | 0.0 ppb (0) | N/A | 0.5 ppb (6) | N/A | 16.4 μg/m3 (59) | 59.0 | |
| May 20, 2019, 11 a.m. | 41.0 ppb (38) | 18.0 ppb (17) | N/A | 23.0 ppb (21) | N/A | 0.0 ppb (0) | N/A | 0.5 ppb (6) | N/A | 18.1 μg/m3 (63) | 63.0 | |
| May 20, 2019, 10 a.m. | 67.0 ppb (64) | 36.0 ppb (33) | N/A | 31.0 ppb (29) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | 21.2 μg/m3 (70) | 70.0 | |
| May 20, 2019, 9 a.m. | 77.0 ppb (74) | 41.0 ppb (38) | N/A | 36.0 ppb (33) | N/A | N/A | N/A | N/A | N/A | 17.0 μg/m3 (61) | 74.0 | |
| May 20, 2019, 8 a.m. | 38.0 ppb (35) | 15.0 ppb (14) | N/A | 22.0 ppb (20) | N/A | N/A | N/A | 0.4 ppb (4) | N/A | 10.4 μg/m3 (43) | 43.0 | |
| May 20, 2019, 7 a.m. | 45.0 ppb (42) | 12.0 ppb (11) | N/A | 32.0 ppb (30) | N/A | 0.0 ppb (0) | N/A | 0.5 ppb (6) | N/A | 8.9 μg/m3 (37) | 42.0 | |
| May 20, 2019, 6 a.m. | 33.0 ppb (31) | 5.0 ppb (5) | N/A | 28.0 ppb (26) | N/A | 0.0 ppb (0) | N/A | 0.5 ppb (6) | N/A | 9.5 μg/m3 (40) | 40.0 | |
| May 20, 2019, 5 a.m. | 13.0 ppb (12) | 1.0 ppb (1) | N/A | 11.0 ppb (10) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | N/A | 12.0 | |
| May 20, 2019, 4 a.m. | 18.0 ppb (17) | 2.0 ppb (2) | N/A | 16.0 ppb (15) | N/A | 0.0 ppb (0) | N/A | 0.5 ppb (6) | N/A | 12.1 μg/m3 (50) | 50.0 | |
| May 20, 2019, 3 a.m. | 9.0 ppb (8) | 2.0 ppb (2) | N/A | 7.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | 0.5 ppb (6) | N/A | 13.1 μg/m3 (52) | 52.0 | |
| May 20, 2019, 2 a.m. | 16.0 ppb (15) | 4.0 ppb (4) | N/A | 12.0 ppb (11) | N/A | 0.0 ppb (0) | N/A | 0.5 ppb (6) | N/A | 14.1 μg/m3 (54) | 54.0 | |
| May 20, 2019, 1 a.m. | 16.0 ppb (15) | 4.0 ppb (4) | N/A | 11.0 ppb (10) | N/A | 0.0 ppb (0) | N/A | 0.5 ppb (6) | N/A | 13.1 μg/m3 (52) | 52.0 | |
| May 20, 2019, midnight | 27.0 ppb (25) | 12.0 ppb (11) | N/A | 14.0 ppb (13) | N/A | 0.0 ppb (0) | N/A | 0.5 ppb (6) | N/A | 11.4 μg/m3 (48) | 48.0 | |
| May 19, 2019, 11 p.m. | 18.0 ppb (17) | 6.0 ppb (6) | N/A | 12.0 ppb (11) | N/A | 0.0 ppb (0) | N/A | 0.5 ppb (6) | N/A | 9.5 μg/m3 (40) | 40.0 | |
| May 19, 2019, 10 p.m. | 13.0 ppb (12) | 5.0 ppb (5) | N/A | 8.0 ppb (7) | N/A | 0.0 ppb (0) | N/A | 0.6 ppb (7) | N/A | 7.0 μg/m3 (29) | 29.0 | |
| May 19, 2019, 9 p.m. | 14.0 ppb (13) | 5.0 ppb (5) | N/A | 9.0 ppb (8) | N/A | 0.0 ppb (0) | N/A | 0.6 ppb (7) | N/A | N/A | 13.0 | |
| May 19, 2019, 8 p.m. | 13.0 ppb (12) | 3.0 ppb (3) | N/A | 9.0 ppb (8) | N/A | 0.0 ppb (0) | N/A | 0.5 ppb (6) | N/A | 1.4 μg/m3 (6) | 12.0 | |
| May 19, 2019, 7 p.m. | 9.0 ppb (8) | 3.0 ppb (3) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | 0.5 ppb (6) | N/A | 3.9 μg/m3 (16) | 16.0 | |
| May 19, 2019, 6 p.m. | 9.0 ppb (8) | 3.0 ppb (3) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | 0.5 ppb (6) | N/A | 8.4 μg/m3 (35) | 35.0 | |
| May 19, 2019, 5 p.m. | 9.0 ppb (8) | 3.0 ppb (3) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | 0.5 ppb (6) | N/A | 5.0 μg/m3 (21) | 21.0 | |
| May 19, 2019, 4 p.m. | 12.0 ppb (11) | 4.0 ppb (4) | N/A | 8.0 ppb (7) | N/A | 0.0 ppb (0) | N/A | 0.5 ppb (6) | N/A | 1.0 μg/m3 (4) | 11.0 | |
| May 19, 2019, 3 p.m. | 15.0 ppb (14) | 5.0 ppb (5) | N/A | 9.0 ppb (8) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | -1.3 μg/m3 (0) | 14.0 | |
| May 19, 2019, 2 p.m. | 17.0 ppb (16) | 6.0 ppb (6) | N/A | 10.0 ppb (9) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | N/A | 16.0 | |
| May 19, 2019, 1 p.m. | 21.0 ppb (19) | 8.0 ppb (7) | N/A | 13.0 ppb (12) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | N/A | 19.0 | |
| May 19, 2019, noon | 17.0 ppb (16) | 5.0 ppb (5) | N/A | 12.0 ppb (11) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | -1.4 μg/m3 (0) | 16.0 | |
| May 19, 2019, 11 a.m. | 17.0 ppb (16) | 6.0 ppb (6) | N/A | 11.0 ppb (10) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 2.5 μg/m3 (10) | 16.0 | |
| May 19, 2019, 10 a.m. | 17.0 ppb (16) | 4.0 ppb (4) | N/A | 13.0 ppb (12) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 4.8 μg/m3 (20) | 20.0 | |
| May 19, 2019, 9 a.m. | 15.0 ppb (14) | 3.0 ppb (3) | N/A | 12.0 ppb (11) | N/A | N/A | N/A | N/A | N/A | 8.0 μg/m3 (33) | 33.0 | |
| May 19, 2019, 8 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 10.1 μg/m3 (42) | 42.0 | |
| May 19, 2019, 7 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 11.6 μg/m3 (48) | 48.0 | |
| May 19, 2019, 6 a.m. | N/A | N/A | N/A | N/A | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 14.9 μg/m3 (56) | 56.0 | |
| May 19, 2019, 5 a.m. | 19.0 ppb (18) | 3.0 ppb (3) | N/A | 15.0 ppb (14) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | N/A | 18.0 | |
| May 19, 2019, 4 a.m. | 15.0 ppb (14) | 3.0 ppb (3) | N/A | 12.0 ppb (11) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 16.8 μg/m3 (60) | 60.0 | |
| May 19, 2019, 3 a.m. | 19.0 ppb (18) | 4.0 ppb (4) | N/A | 15.0 ppb (14) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 22.7 μg/m3 (73) | 73.0 | |
| May 19, 2019, 2 a.m. | 21.0 ppb (19) | 5.0 ppb (5) | N/A | 16.0 ppb (15) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 16.6 μg/m3 (60) | 60.0 | |
| May 19, 2019, 1 a.m. | 23.0 ppb (21) | 4.0 ppb (4) | N/A | 18.0 ppb (17) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 13.9 μg/m3 (54) | 54.0 | |
| May 19, 2019, midnight | 21.0 ppb (19) | 3.0 ppb (3) | N/A | 18.0 ppb (17) | N/A | 0.0 ppb (0) | N/A | 0.5 ppb (6) | N/A | 11.5 μg/m3 (48) | 48.0 | |
| May 18, 2019, 11 p.m. | 23.0 ppb (21) | 4.0 ppb (4) | N/A | 19.0 ppb (18) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 7.8 μg/m3 (32) | 32.0 | |
| May 18, 2019, 10 p.m. | 19.0 ppb (18) | 4.0 ppb (4) | N/A | 14.0 ppb (13) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 4.1 μg/m3 (17) | 18.0 | |
| May 18, 2019, 9 p.m. | 12.0 ppb (11) | 2.0 ppb (2) | N/A | 9.0 ppb (8) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | N/A | 11.0 | |
| May 18, 2019, 8 p.m. | 11.0 ppb (10) | 2.0 ppb (2) | N/A | 8.0 ppb (7) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 2.2 μg/m3 (9) | 10.0 | |
| May 18, 2019, 7 p.m. | 7.0 ppb (6) | 2.0 ppb (2) | N/A | 4.0 ppb (4) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 0.3 μg/m3 (1) | 6.0 | |
| May 18, 2019, 6 p.m. | 5.0 ppb (5) | 2.0 ppb (2) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | -0.8 μg/m3 (0) | 5.0 | |
| May 18, 2019, 5 p.m. | 5.0 ppb (5) | 2.0 ppb (2) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | -1.4 μg/m3 (0) | 5.0 | |
| May 18, 2019, 4 p.m. | 4.0 ppb (4) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | -2.1 μg/m3 (0) | 4.0 | |
| May 18, 2019, 3 p.m. | 4.0 ppb (4) | 1.0 ppb (1) | N/A | 2.0 ppb (2) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | -3.4 μg/m3 (0) | 4.0 | |
| May 18, 2019, 2 p.m. | 6.0 ppb (6) | 2.0 ppb (2) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | -4.3 μg/m3 (0) | 6.0 | |
| May 18, 2019, 1 p.m. | 7.0 ppb (6) | 3.0 ppb (3) | N/A | 3.0 ppb (3) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | N/A | 6.0 | |
| May 18, 2019, noon | 8.0 ppb (7) | 3.0 ppb (3) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 1.7 μg/m3 (7) | 7.0 | |
| May 18, 2019, 11 a.m. | 9.0 ppb (8) | 2.0 ppb (2) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 5.6 μg/m3 (23) | 23.0 | |
| May 18, 2019, 10 a.m. | 10.0 ppb (9) | 2.0 ppb (2) | N/A | 8.0 ppb (7) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 9.4 μg/m3 (39) | 39.0 | |
| May 18, 2019, 9 a.m. | 9.0 ppb (8) | 1.0 ppb (1) | N/A | 8.0 ppb (7) | N/A | N/A | N/A | N/A | N/A | 12.0 μg/m3 (50) | 50.0 | |
| May 18, 2019, 8 a.m. | 9.0 ppb (8) | 1.0 ppb (1) | N/A | 8.0 ppb (7) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 14.0 μg/m3 (54) | 54.0 | |
| May 18, 2019, 7 a.m. | 8.0 ppb (7) | 1.0 ppb (1) | N/A | 6.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 17.9 μg/m3 (63) | 63.0 | |
| May 18, 2019, 6 a.m. | 8.0 ppb (7) | 0.0 ppb (0) | N/A | 7.0 ppb (6) | N/A | 0.0 ppb (0) | N/A | 0.3 ppb (3) | N/A | 21.8 μg/m3 (71) | 71.0 | |
| 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) | N/A | 0.4 ppb (4) | N/A | N/A | 6.0 | |
| May 18, 2019, 4 a.m. | 6.0 ppb (6) | 0.0 ppb (0) | N/A | 5.0 ppb (5) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 13.6 μg/m3 (53) | 53.0 | |
| May 18, 2019, 3 a.m. | 10.0 ppb (9) | 1.0 ppb (1) | N/A | 9.0 ppb (8) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 7.4 μg/m3 (31) | 31.0 | |
| May 18, 2019, 2 a.m. | 15.0 ppb (14) | 1.0 ppb (1) | N/A | 13.0 ppb (12) | N/A | 0.0 ppb (0) | N/A | 0.5 ppb (6) | N/A | 6.7 μg/m3 (28) | 28.0 | |
| May 18, 2019, 1 a.m. | 13.0 ppb (12) | 2.0 ppb (2) | N/A | 10.0 ppb (9) | N/A | 0.0 ppb (0) | N/A | 0.5 ppb (6) | N/A | 7.4 μg/m3 (31) | 31.0 | |
| May 18, 2019, midnight | 21.0 ppb (19) | 3.0 ppb (3) | N/A | 17.0 ppb (16) | N/A | 0.0 ppb (0) | N/A | 0.5 ppb (6) | N/A | 9.3 μg/m3 (39) | 39.0 | |
| May 17, 2019, 11 p.m. | 13.0 ppb (12) | 2.0 ppb (2) | N/A | 11.0 ppb (10) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 11.8 μg/m3 (49) | 49.0 | |
| May 17, 2019, 10 p.m. | 16.0 ppb (15) | 3.0 ppb (3) | N/A | 12.0 ppb (11) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 12.4 μg/m3 (51) | 51.0 | |
| May 17, 2019, 9 p.m. | 15.0 ppb (14) | 3.0 ppb (3) | N/A | 12.0 ppb (11) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | N/A | 14.0 | |
| May 17, 2019, 8 p.m. | 17.0 ppb (16) | 4.0 ppb (4) | N/A | 12.0 ppb (11) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 12.0 μg/m3 (50) | 50.0 | |
| May 17, 2019, 7 p.m. | 22.0 ppb (20) | 7.0 ppb (6) | N/A | 15.0 ppb (14) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 12.0 μg/m3 (50) | 50.0 | |
| May 17, 2019, 6 p.m. | 33.0 ppb (31) | 12.0 ppb (11) | N/A | 21.0 ppb (19) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 12.3 μg/m3 (51) | 51.0 | |
| May 17, 2019, 5 p.m. | 38.0 ppb (35) | 10.0 ppb (9) | N/A | 27.0 ppb (25) | N/A | 0.0 ppb (0) | N/A | 0.5 ppb (6) | N/A | 15.6 μg/m3 (58) | 58.0 | |
| May 17, 2019, 4 p.m. | 30.0 ppb (28) | 8.0 ppb (7) | N/A | 22.0 ppb (20) | N/A | 0.0 ppb (0) | N/A | 0.5 ppb (6) | N/A | 12.1 μg/m3 (50) | 50.0 | |
| May 17, 2019, 3 p.m. | 32.0 ppb (30) | 12.0 ppb (11) | N/A | 19.0 ppb (18) | N/A | 0.0 ppb (0) | N/A | 0.5 ppb (6) | N/A | 10.9 μg/m3 (45) | 45.0 | |
| May 17, 2019, 2 p.m. | 52.0 ppb (48) | 23.0 ppb (21) | N/A | 28.0 ppb (26) | N/A | 0.0 ppb (0) | N/A | 0.5 ppb (6) | N/A | 9.8 μg/m3 (41) | 48.0 | |
| May 17, 2019, 1 p.m. | 48.0 ppb (44) | 21.0 ppb (19) | N/A | 27.0 ppb (25) | N/A | 1.0 ppb (1) | N/A | 0.5 ppb (6) | N/A | N/A | 44.0 | |
| May 17, 2019, noon | 49.0 ppb (45) | 21.0 ppb (19) | N/A | 27.0 ppb (25) | N/A | 1.0 ppb (1) | N/A | 0.5 ppb (6) | N/A | 14.1 μg/m3 (54) | 54.0 | |
| May 17, 2019, 11 a.m. | 55.0 ppb (51) | 24.0 ppb (22) | N/A | 31.0 ppb (29) | N/A | 0.0 ppb (0) | N/A | 0.5 ppb (6) | N/A | 17.4 μg/m3 (61) | 61.0 | |
| May 17, 2019, 10 a.m. | 59.0 ppb (55) | 26.0 ppb (24) | N/A | 32.0 ppb (30) | N/A | 0.0 ppb (0) | N/A | 0.5 ppb (6) | N/A | 20.3 μg/m3 (68) | 68.0 | |
| May 17, 2019, 9 a.m. | 46.0 ppb (43) | 14.0 ppb (13) | N/A | 31.0 ppb (29) | N/A | N/A | N/A | N/A | N/A | 19.0 μg/m3 (65) | 65.0 | |
| May 17, 2019, 8 a.m. | 33.0 ppb (31) | 7.0 ppb (6) | N/A | 25.0 ppb (23) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 16.3 μg/m3 (59) | 59.0 | |
| May 17, 2019, 7 a.m. | 27.0 ppb (25) | 6.0 ppb (6) | N/A | 21.0 ppb (19) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 14.4 μg/m3 (55) | 55.0 | |
| May 17, 2019, 6 a.m. | 34.0 ppb (31) | 7.0 ppb (6) | N/A | 26.0 ppb (24) | N/A | 0.0 ppb (0) | N/A | 0.4 ppb (4) | N/A | 13.9 μg/m3 (54) | 54.0 | |
| May 17, 2019, 5 a.m. | 79.0 ppb (77) | 31.0 ppb (29) | N/A | 47.0 ppb (44) | N/A | 0.0 ppb (0) | N/A | 0.5 ppb (6) | N/A | N/A | 77.0 | |
| May 17, 2019, 4 a.m. | 66.0 ppb (63) | 21.0 ppb (19) | N/A | 45.0 ppb (42) | N/A | 0.0 ppb (0) | N/A | 0.5 ppb (6) | N/A | 19.0 μg/m3 (65) | 65.0 | |
| May 17, 2019, 3 a.m. | 87.0 ppb (85) | 37.0 ppb (34) | N/A | 49.0 ppb (45) | N/A | 0.0 ppb (0) | N/A | 0.5 ppb (6) | N/A | 19.8 μg/m3 (67) | 85.0 | |
| May 17, 2019, 2 a.m. | 70.0 ppb (67) | 24.0 ppb (22) | N/A | 46.0 ppb (43) | N/A | 0.0 ppb (0) | N/A | 0.6 ppb (7) | N/A | 14.4 μg/m3 (55) | 67.0 | |
| May 17, 2019, 1 a.m. | 75.0 ppb (72) | 28.0 ppb (26) | N/A | 47.0 ppb (44) | N/A | 0.0 ppb (0) | N/A | 0.6 ppb (7) | N/A | 12.6 μg/m3 (51) | 72.0 | |
| May 17, 2019, midnight | 32.0 ppb (30) | 2.0 ppb (2) | N/A | 30.0 ppb (28) | N/A | 0.0 ppb (0) | N/A | 0.5 ppb (6) | N/A | 9.0 μg/m3 (38) | 38.0 |