Decatur (Clifton Spgs Rd) GA, US: 33.6906, -84.2731
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| April 9, 2020, 10 p.m. | 2.1 ppb (2) | -0.6 ppb (0) | 1.0 ppb (1) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 41.0 ppb (32) | 0.15 ppb (2) | 11.0 μg/m3 (10) | 4.6 μg/m3 (19) | 32.0 | |
| April 9, 2020, 9 p.m. | 2.9 ppb (3) | -0.4 ppb (0) | 2.0 ppb (2) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 42.0 ppb (32) | 0.16 ppb (2) | 16.0 μg/m3 (15) | 5.8 μg/m3 (24) | 32.0 | |
| April 9, 2020, 8 p.m. | 2.9 ppb (3) | -0.4 ppb (0) | 2.0 ppb (2) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | 0.16 ppb (2) | 15.0 μg/m3 (14) | 6.6 μg/m3 (28) | 33.0 | |
| April 9, 2020, 7 p.m. | 2.2 ppb (2) | -0.4 ppb (0) | 1.0 ppb (1) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 45.0 ppb (35) | 0.17 ppb (2) | 18.0 μg/m3 (16) | 8.1 μg/m3 (34) | 35.0 | |
| April 9, 2020, 6 p.m. | 2.8 ppb (3) | -0.3 ppb (0) | 2.0 ppb (2) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 45.0 ppb (35) | 0.18 ppb (2) | 20.0 μg/m3 (18) | 8.7 μg/m3 (36) | 36.0 | |
| April 9, 2020, 5 p.m. | 2.3 ppb (2) | -0.4 ppb (0) | 2.0 ppb (2) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 42.0 ppb (32) | 0.18 ppb (2) | 21.0 μg/m3 (19) | 8.2 μg/m3 (34) | 34.0 | |
| April 9, 2020, 4 p.m. | 3.9 ppb (4) | -0.1 ppb (0) | 3.0 ppb (3) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | 0.18 ppb (2) | 19.0 μg/m3 (17) | 7.6 μg/m3 (32) | 32.0 | |
| April 9, 2020, 3 p.m. | 4.2 ppb (4) | 0.1 ppb (0) | 3.0 ppb (3) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 34.0 ppb (26) | 0.18 ppb (2) | 17.0 μg/m3 (15) | 6.3 μg/m3 (26) | 26.0 | |
| April 9, 2020, 2 p.m. | 5.6 ppb (5) | 0.5 ppb (0) | 5.0 ppb (5) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 26.0 ppb (20) | 0.19 ppb (2) | 26.0 μg/m3 (24) | 5.9 μg/m3 (25) | 25.0 | |
| April 9, 2020, 1 p.m. | 11.4 ppb (11) | 1.2 ppb (1) | 10.0 ppb (9) | 10.0 ppb (9) | N/A | 0.0 ppb (0) | 16.0 ppb (12) | 0.23 ppb (3) | 28.0 μg/m3 (25) | 6.2 μg/m3 (26) | 26.0 | |
| April 9, 2020, noon | 15.4 ppb (14) | 2.6 ppb (2) | 15.0 ppb (14) | 13.0 ppb (12) | N/A | 0.0 ppb (0) | 11.0 ppb (8) | 0.25 ppb (3) | 18.0 μg/m3 (16) | 6.0 μg/m3 (25) | 25.0 | |
| April 9, 2020, 11 a.m. | 7.2 ppb (7) | -0.6 ppb (0) | 7.0 ppb (6) | 8.0 ppb (7) | N/A | 0.0 ppb (0) | 20.0 ppb (15) | 0.2 ppb (2) | 16.0 μg/m3 (15) | 5.9 μg/m3 (25) | 25.0 | |
| April 9, 2020, 10 a.m. | 4.2 ppb (4) | -0.8 ppb (0) | 4.0 ppb (4) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 23.0 ppb (18) | 0.17 ppb (2) | 33.0 μg/m3 (30) | 6.1 μg/m3 (25) | 30.0 | |
| April 9, 2020, 9 a.m. | 1.7 ppb (2) | -0.8 ppb (0) | 1.0 ppb (1) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 32.0 ppb (25) | 0.16 ppb (2) | 21.0 μg/m3 (19) | 6.7 μg/m3 (28) | 28.0 | |
| April 9, 2020, 8 a.m. | 3.7 ppb (3) | -0.7 ppb (0) | 3.0 ppb (3) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 14.0 ppb (11) | 0.18 ppb (2) | 17.0 μg/m3 (15) | 11.3 μg/m3 (47) | 47.0 | |
| April 9, 2020, 7 a.m. | 2.2 ppb (2) | -0.8 ppb (0) | 2.0 ppb (2) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 16.0 ppb (12) | 0.17 ppb (2) | 17.0 μg/m3 (15) | 11.4 μg/m3 (48) | 48.0 | |
| April 9, 2020, 6 a.m. | 2.2 ppb (2) | -0.8 ppb (0) | 2.0 ppb (2) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 15.0 ppb (12) | 0.17 ppb (2) | 17.0 μg/m3 (15) | 11.6 μg/m3 (48) | 48.0 | |
| April 9, 2020, 5 a.m. | 4.1 ppb (4) | -0.7 ppb (0) | 4.0 ppb (4) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 13.0 ppb (10) | 0.18 ppb (2) | 17.0 μg/m3 (15) | 12.0 μg/m3 (50) | 50.0 | |
| April 9, 2020, 4 a.m. | 3.0 ppb (3) | -0.7 ppb (0) | 3.0 ppb (3) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 11.0 ppb (8) | 0.2 ppb (2) | N/A | N/A | 8.0 | |
| April 9, 2020, 3 a.m. | 5.5 ppb (5) | -0.7 ppb (0) | 5.0 ppb (5) | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 12.0 ppb (9) | 0.21 ppb (2) | 19.0 μg/m3 (17) | 13.5 μg/m3 (53) | 53.0 | |
| April 9, 2020, 2 a.m. | 7.0 ppb (6) | -0.7 ppb (0) | 6.0 ppb (6) | 8.0 ppb (7) | N/A | 0.0 ppb (0) | 12.0 ppb (9) | 0.23 ppb (3) | 20.0 μg/m3 (18) | 13.3 μg/m3 (53) | 53.0 | |
| April 9, 2020, 1 a.m. | 6.1 ppb (6) | -0.7 ppb (0) | 6.0 ppb (6) | 7.0 ppb (6) | N/A | 0.0 ppb (0) | 16.0 ppb (12) | 0.24 ppb (3) | 22.0 μg/m3 (20) | 12.7 μg/m3 (51) | 51.0 | |
| April 9, 2020, midnight | 7.4 ppb (7) | -0.7 ppb (0) | 7.0 ppb (6) | 8.0 ppb (7) | N/A | 0.0 ppb (0) | 22.0 ppb (17) | 0.23 ppb (3) | 18.0 μg/m3 (16) | 11.1 μg/m3 (46) | 46.0 | |
| April 8, 2020, 11 p.m. | 6.2 ppb (6) | -0.6 ppb (0) | 5.0 ppb (5) | 7.0 ppb (6) | N/A | 0.0 ppb (0) | 25.0 ppb (19) | 0.22 ppb (2) | 16.0 μg/m3 (15) | 10.0 μg/m3 (42) | 42.0 | |
| April 8, 2020, 10 p.m. | 4.8 ppb (4) | -0.3 ppb (0) | 4.0 ppb (4) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 28.0 ppb (22) | 0.2 ppb (2) | 16.0 μg/m3 (15) | 9.2 μg/m3 (38) | 38.0 | |
| April 8, 2020, 9 p.m. | 3.9 ppb (4) | -0.3 ppb (0) | 3.0 ppb (3) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 29.0 ppb (22) | 0.2 ppb (2) | 13.0 μg/m3 (12) | 9.0 μg/m3 (38) | 38.0 | |
| April 8, 2020, 8 p.m. | 2.5 ppb (2) | -0.4 ppb (0) | 2.0 ppb (2) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 33.0 ppb (25) | 0.19 ppb (2) | 14.0 μg/m3 (13) | 9.0 μg/m3 (38) | 38.0 | |
| April 8, 2020, 7 p.m. | 2.7 ppb (3) | -0.2 ppb (0) | 2.0 ppb (2) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 32.0 ppb (25) | 0.19 ppb (2) | 13.0 μg/m3 (12) | 8.7 μg/m3 (36) | 36.0 | |
| April 8, 2020, 6 p.m. | 2.4 ppb (2) | -0.2 ppb (0) | 2.0 ppb (2) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 29.0 ppb (22) | 0.19 ppb (2) | 13.0 μg/m3 (12) | 8.1 μg/m3 (34) | 34.0 | |
| April 8, 2020, 5 p.m. | 2.7 ppb (3) | -0.1 ppb (0) | 2.0 ppb (2) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 25.0 ppb (19) | 0.19 ppb (2) | 12.0 μg/m3 (11) | 7.7 μg/m3 (32) | 32.0 | |
| April 8, 2020, 4 p.m. | 3.4 ppb (3) | -0.1 ppb (0) | 3.0 ppb (3) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 21.0 ppb (16) | 0.2 ppb (2) | 14.0 μg/m3 (13) | 8.5 μg/m3 (35) | 35.0 | |
| April 8, 2020, 3 p.m. | 7.1 ppb (7) | 1.1 ppb (1) | 6.0 ppb (6) | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 14.0 ppb (11) | 0.2 ppb (2) | 18.0 μg/m3 (16) | 10.9 μg/m3 (45) | 45.0 | |
| April 8, 2020, 2 p.m. | 8.5 ppb (8) | 1.0 ppb (1) | 8.0 ppb (7) | 8.0 ppb (7) | N/A | 0.0 ppb (0) | 11.0 ppb (8) | N/A | 18.0 μg/m3 (16) | 11.1 μg/m3 (46) | 46.0 | |
| April 8, 2020, 1 p.m. | 9.6 ppb (9) | 1.4 ppb (1) | 9.0 ppb (8) | 8.0 ppb (7) | N/A | N/A | 10.0 ppb (8) | N/A | 18.0 μg/m3 (16) | 11.2 μg/m3 (47) | 47.0 | |
| April 8, 2020, noon | 9.4 ppb (9) | 0.6 ppb (1) | 9.0 ppb (8) | 9.0 ppb (8) | N/A | N/A | 7.0 ppb (5) | 0.21 ppb (2) | 18.0 μg/m3 (16) | 11.1 μg/m3 (46) | 46.0 | |
| April 8, 2020, 11 a.m. | 5.5 ppb (5) | -0.6 ppb (0) | 5.0 ppb (5) | 6.0 ppb (6) | N/A | N/A | 12.0 ppb (9) | 0.2 ppb (2) | 17.0 μg/m3 (15) | 11.1 μg/m3 (46) | 46.0 | |
| April 8, 2020, 10 a.m. | 6.3 ppb (6) | -0.7 ppb (0) | 6.0 ppb (6) | 7.0 ppb (6) | N/A | N/A | 12.0 ppb (9) | 0.2 ppb (2) | 17.0 μg/m3 (15) | 11.0 μg/m3 (46) | 46.0 | |
| April 8, 2020, 9 a.m. | 8.1 ppb (8) | 0.2 ppb (0) | N/A | 8.0 ppb (7) | N/A | 0.0 ppb (0) | 6.0 ppb (5) | 0.23 ppb (3) | 17.0 μg/m3 (15) | 11.0 μg/m3 (46) | 46.0 | |
| April 8, 2020, 8 a.m. | 16.2 ppb (15) | 7.4 ppb (7) | N/A | 9.0 ppb (8) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.27 ppb (3) | 17.0 μg/m3 (15) | 11.1 μg/m3 (46) | 46.0 | |
| April 8, 2020, 7 a.m. | 29.3 ppb (27) | 17.0 ppb (16) | N/A | 12.0 ppb (11) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.29 ppb (3) | 17.0 μg/m3 (15) | 11.3 μg/m3 (47) | 47.0 | |
| April 8, 2020, 6 a.m. | 16.3 ppb (15) | 4.0 ppb (4) | 19.0 ppb (18) | 12.0 ppb (11) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.26 ppb (3) | 18.0 μg/m3 (16) | 11.5 μg/m3 (48) | 48.0 | |
| April 8, 2020, 5 a.m. | 12.0 ppb (11) | -0.1 ppb (0) | 13.0 ppb (12) | 12.0 ppb (11) | N/A | 0.0 ppb (0) | 4.0 ppb (3) | 0.25 ppb (3) | 18.0 μg/m3 (16) | 11.4 μg/m3 (48) | 48.0 | |
| April 8, 2020, 4 a.m. | 7.5 ppb (7) | -0.6 ppb (0) | 7.0 ppb (6) | 8.0 ppb (7) | N/A | 0.0 ppb (0) | 11.0 ppb (8) | 0.23 ppb (3) | N/A | N/A | 8.0 | |
| April 8, 2020, 3 a.m. | 6.5 ppb (6) | -0.7 ppb (0) | 6.0 ppb (6) | 7.0 ppb (6) | N/A | 0.0 ppb (0) | 14.0 ppb (11) | 0.23 ppb (3) | 17.0 μg/m3 (15) | 10.6 μg/m3 (44) | 44.0 | |
| April 8, 2020, 2 a.m. | 8.8 ppb (8) | -0.7 ppb (0) | 9.0 ppb (8) | 10.0 ppb (9) | N/A | 0.0 ppb (0) | 15.0 ppb (12) | 0.24 ppb (3) | 17.0 μg/m3 (15) | 10.6 μg/m3 (44) | 44.0 | |
| April 8, 2020, 1 a.m. | 9.0 ppb (8) | -0.7 ppb (0) | 9.0 ppb (8) | 10.0 ppb (9) | N/A | 0.0 ppb (0) | 14.0 ppb (11) | 0.25 ppb (3) | 18.0 μg/m3 (16) | 10.4 μg/m3 (43) | 43.0 | |
| April 8, 2020, midnight | 9.1 ppb (8) | -0.7 ppb (0) | 9.0 ppb (8) | 10.0 ppb (9) | N/A | 0.0 ppb (0) | 19.0 ppb (15) | 0.25 ppb (3) | 17.0 μg/m3 (15) | 10.4 μg/m3 (43) | 43.0 | |
| April 7, 2020, 11 p.m. | 4.8 ppb (4) | -0.7 ppb (0) | 5.0 ppb (5) | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 28.0 ppb (22) | 0.22 ppb (2) | 17.0 μg/m3 (15) | 11.6 μg/m3 (48) | 48.0 | |
| April 7, 2020, 10 p.m. | 2.3 ppb (2) | -0.6 ppb (0) | 2.0 ppb (2) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 33.0 ppb (25) | 0.21 ppb (2) | 18.0 μg/m3 (16) | 13.0 μg/m3 (52) | 52.0 | |
| April 7, 2020, 9 p.m. | 4.5 ppb (4) | -0.5 ppb (0) | 4.0 ppb (4) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 35.0 ppb (27) | 0.21 ppb (2) | 22.0 μg/m3 (20) | 12.2 μg/m3 (50) | 50.0 | |
| April 7, 2020, 8 p.m. | 4.9 ppb (5) | -0.5 ppb (0) | 4.0 ppb (4) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | 0.22 ppb (2) | 25.0 μg/m3 (23) | 16.3 μg/m3 (59) | 59.0 | |
| April 7, 2020, 7 p.m. | 4.3 ppb (4) | -0.4 ppb (0) | 4.0 ppb (4) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | 0.22 ppb (2) | 26.0 μg/m3 (24) | 17.9 μg/m3 (63) | 63.0 | |
| April 7, 2020, 6 p.m. | 3.9 ppb (4) | -0.3 ppb (0) | 3.0 ppb (3) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 41.0 ppb (32) | 0.23 ppb (3) | 26.0 μg/m3 (24) | 18.0 μg/m3 (63) | 63.0 | |
| April 7, 2020, 5 p.m. | 3.1 ppb (3) | -0.3 ppb (0) | 2.0 ppb (2) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 40.0 ppb (31) | 0.21 ppb (2) | 23.0 μg/m3 (21) | 17.1 μg/m3 (61) | 61.0 | |
| April 7, 2020, 4 p.m. | 3.1 ppb (3) | -0.2 ppb (0) | 2.0 ppb (2) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 41.0 ppb (32) | 0.21 ppb (2) | 23.0 μg/m3 (21) | 16.8 μg/m3 (60) | 60.0 | |
| April 7, 2020, 3 p.m. | 4.9 ppb (5) | 0.1 ppb (0) | 4.0 ppb (4) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 35.0 ppb (27) | 0.23 ppb (3) | 25.0 μg/m3 (23) | 17.2 μg/m3 (61) | 61.0 | |
| April 7, 2020, 2 p.m. | 12.0 ppb (11) | 1.5 ppb (1) | 11.0 ppb (10) | 11.0 ppb (10) | N/A | 0.0 ppb (0) | 28.0 ppb (22) | 0.29 ppb (3) | 35.0 μg/m3 (32) | 23.3 μg/m3 (74) | 74.0 | |
| April 7, 2020, 1 p.m. | 55.0 ppb (51) | 36.0 ppb (33) | 50.0 ppb (46) | 19.0 ppb (18) | N/A | 0.0 ppb (0) | 10.0 ppb (8) | 0.51 ppb (6) | 35.0 μg/m3 (32) | 23.5 μg/m3 (74) | 74.0 | |
| April 7, 2020, noon | 86.8 ppb (85) | 78.0 ppb (76) | 83.0 ppb (81) | 9.0 ppb (8) | N/A | 0.0 ppb (0) | N/A | 0.6 ppb (7) | 30.0 μg/m3 (27) | 21.0 μg/m3 (69) | 85.0 | |
| April 7, 2020, 11 a.m. | 99.7 ppb (99) | 85.1 ppb (83) | 104.0 ppb (101) | 14.0 ppb (13) | N/A | 0.0 ppb (0) | N/A | 0.61 ppb (7) | 34.0 μg/m3 (31) | 21.9 μg/m3 (71) | 101.0 | |
| April 7, 2020, 10 a.m. | 90.2 ppb (89) | 78.4 ppb (76) | 91.0 ppb (89) | 12.0 ppb (11) | N/A | 0.0 ppb (0) | N/A | 0.56 ppb (6) | N/A | N/A | 89.0 | |
| April 7, 2020, 9 a.m. | 69.9 ppb (67) | 56.4 ppb (53) | 73.0 ppb (70) | 13.0 ppb (12) | N/A | 0.0 ppb (0) | N/A | N/A | N/A | N/A | 70.0 | |
| April 7, 2020, 8 a.m. | 59.5 ppb (56) | 44.7 ppb (41) | 58.0 ppb (54) | 15.0 ppb (14) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | N/A | N/A | N/A | 56.0 | |
| April 7, 2020, 7 a.m. | 49.3 ppb (46) | 32.2 ppb (30) | 49.0 ppb (45) | 17.0 ppb (16) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.46 ppb (5) | N/A | N/A | 46.0 | |
| April 7, 2020, 6 a.m. | 40.0 ppb (37) | 20.8 ppb (19) | 39.0 ppb (36) | 19.0 ppb (18) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.45 ppb (5) | N/A | N/A | 37.0 | |
| April 7, 2020, 5 a.m. | 56.1 ppb (52) | 33.0 ppb (31) | 60.0 ppb (56) | 23.0 ppb (21) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.49 ppb (5) | N/A | N/A | 56.0 | |
| April 7, 2020, 4 a.m. | 43.9 ppb (41) | 17.5 ppb (16) | 44.0 ppb (41) | 26.0 ppb (24) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.46 ppb (5) | N/A | N/A | 41.0 | |
| April 7, 2020, 3 a.m. | 41.1 ppb (38) | 9.6 ppb (9) | 39.0 ppb (36) | 32.0 ppb (30) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.44 ppb (5) | N/A | N/A | 38.0 | |
| April 7, 2020, 2 a.m. | 55.7 ppb (52) | 17.8 ppb (16) | 59.0 ppb (55) | 38.0 ppb (35) | N/A | N/A | 0.0 ppb (0) | 0.46 ppb (5) | N/A | N/A | 55.0 | |
| April 7, 2020, 1 a.m. | 41.9 ppb (39) | 3.2 ppb (3) | 47.0 ppb (44) | 39.0 ppb (36) | N/A | N/A | 4.0 ppb (3) | 0.42 ppb (5) | N/A | N/A | 44.0 | |
| April 7, 2020, midnight | 14.6 ppb (14) | -0.5 ppb (0) | 16.0 ppb (15) | 15.0 ppb (14) | N/A | N/A | 30.0 ppb (23) | 0.28 ppb (3) | N/A | N/A | 23.0 | |
| April 6, 2020, 11 p.m. | N/A | N/A | 14.0 ppb (13) | N/A | N/A | 0.0 ppb (0) | 35.0 ppb (27) | 0.27 ppb (3) | N/A | N/A | 27.0 | |
| April 6, 2020, 10 p.m. | N/A | N/A | 8.0 ppb (7) | N/A | N/A | 0.0 ppb (0) | 42.0 ppb (32) | 0.23 ppb (3) | N/A | N/A | 32.0 | |
| April 6, 2020, 9 p.m. | N/A | N/A | 2.0 ppb (2) | N/A | N/A | 0.0 ppb (0) | 51.0 ppb (39) | 0.21 ppb (2) | N/A | N/A | 39.0 | |
| April 6, 2020, 8 p.m. | N/A | N/A | 3.0 ppb (3) | N/A | N/A | 0.0 ppb (0) | 51.0 ppb (39) | 0.21 ppb (2) | N/A | N/A | 39.0 | |
| April 6, 2020, 7 p.m. | N/A | N/A | 1.0 ppb (1) | N/A | N/A | 0.0 ppb (0) | 56.0 ppb (43) | 0.19 ppb (2) | N/A | N/A | 43.0 | |
| April 6, 2020, 6 p.m. | 3.1 ppb (3) | -0.4 ppb (0) | 2.0 ppb (2) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 57.0 ppb (44) | 0.2 ppb (2) | N/A | N/A | 44.0 | |
| April 6, 2020, 5 p.m. | 3.7 ppb (3) | -0.3 ppb (0) | 2.0 ppb (2) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 55.0 ppb (42) | 0.34 ppb (4) | N/A | N/A | 42.0 | |
| April 6, 2020, 4 p.m. | 3.5 ppb (3) | -0.2 ppb (0) | 2.0 ppb (2) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 53.0 ppb (41) | 0.24 ppb (3) | N/A | N/A | 41.0 | |
| April 6, 2020, 3 p.m. | 14.2 ppb (13) | 3.3 ppb (3) | 13.0 ppb (12) | 11.0 ppb (10) | N/A | 0.0 ppb (0) | 39.0 ppb (30) | 0.29 ppb (3) | 30.0 μg/m3 (27) | 15.2 μg/m3 (57) | 57.0 | |
| April 6, 2020, 2 p.m. | 49.1 ppb (45) | 22.0 ppb (20) | 46.0 ppb (43) | 27.0 ppb (25) | N/A | 0.0 ppb (0) | 12.0 ppb (9) | 0.44 ppb (5) | 44.0 μg/m3 (40) | 22.4 μg/m3 (72) | 72.0 | |
| April 6, 2020, 1 p.m. | 41.0 ppb (38) | 21.4 ppb (20) | 40.0 ppb (37) | 20.0 ppb (19) | N/A | 0.0 ppb (0) | 6.0 ppb (5) | 0.47 ppb (5) | 37.0 μg/m3 (34) | 21.8 μg/m3 (71) | 71.0 | |
| April 6, 2020, noon | 31.9 ppb (30) | 23.1 ppb (21) | 29.0 ppb (27) | 9.0 ppb (8) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.53 ppb (6) | 34.0 μg/m3 (31) | 25.2 μg/m3 (78) | 78.0 | |
| April 6, 2020, 11 a.m. | 38.3 ppb (35) | 30.1 ppb (28) | 37.0 ppb (34) | 8.0 ppb (7) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.49 ppb (5) | 33.0 μg/m3 (30) | 25.6 μg/m3 (79) | 79.0 | |
| April 6, 2020, 10 a.m. | 44.5 ppb (41) | 34.8 ppb (32) | 48.0 ppb (44) | 10.0 ppb (9) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.5 ppb (6) | 32.0 μg/m3 (29) | 24.3 μg/m3 (76) | 76.0 | |
| April 6, 2020, 9 a.m. | 38.8 ppb (36) | 26.7 ppb (25) | 41.0 ppb (38) | 12.0 ppb (11) | N/A | 0.0 ppb (0) | N/A | 0.48 ppb (5) | 38.0 μg/m3 (35) | 28.9 μg/m3 (86) | 86.0 | |
| April 6, 2020, 8 a.m. | 32.6 ppb (30) | 18.9 ppb (18) | 30.0 ppb (28) | 14.0 ppb (13) | N/A | 0.0 ppb (0) | N/A | 0.51 ppb (6) | 38.0 μg/m3 (35) | 28.2 μg/m3 (84) | 84.0 | |
| April 6, 2020, 7 a.m. | 32.5 ppb (30) | 15.7 ppb (15) | 31.0 ppb (29) | 17.0 ppb (16) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.51 ppb (6) | 35.0 μg/m3 (32) | 25.8 μg/m3 (79) | 79.0 | |
| April 6, 2020, 6 a.m. | 29.6 ppb (27) | 10.7 ppb (10) | 29.0 ppb (27) | 19.0 ppb (18) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.52 ppb (6) | 31.0 μg/m3 (28) | 22.4 μg/m3 (72) | 72.0 | |
| April 6, 2020, 5 a.m. | 32.8 ppb (30) | 8.9 ppb (8) | 32.0 ppb (30) | 24.0 ppb (22) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.53 ppb (6) | 30.0 μg/m3 (27) | 22.7 μg/m3 (73) | 73.0 | |
| April 6, 2020, 4 a.m. | 36.9 ppb (34) | 7.8 ppb (7) | 37.0 ppb (34) | 29.0 ppb (27) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.54 ppb (6) | N/A | N/A | 34.0 | |
| April 6, 2020, 3 a.m. | 35.2 ppb (33) | 4.1 ppb (4) | 34.0 ppb (31) | 31.0 ppb (29) | N/A | 0.0 ppb (0) | 1.0 ppb (1) | 0.51 ppb (6) | 32.0 μg/m3 (29) | 23.5 μg/m3 (74) | 74.0 | |
| April 6, 2020, 2 a.m. | 30.2 ppb (28) | 2.7 ppb (3) | 39.0 ppb (36) | 28.0 ppb (26) | N/A | 0.0 ppb (0) | 6.0 ppb (5) | 0.45 ppb (5) | 26.0 μg/m3 (24) | 19.2 μg/m3 (65) | 65.0 | |
| April 6, 2020, 1 a.m. | 8.3 ppb (8) | -0.7 ppb (0) | 11.0 ppb (10) | 9.0 ppb (8) | N/A | 0.0 ppb (0) | 30.0 ppb (23) | 0.29 ppb (3) | 20.0 μg/m3 (18) | 14.8 μg/m3 (56) | 56.0 | |
| April 6, 2020, midnight | 1.4 ppb (1) | -0.7 ppb (0) | 1.0 ppb (1) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 46.0 ppb (35) | 0.23 ppb (3) | 18.0 μg/m3 (16) | 13.1 μg/m3 (52) | 52.0 | |
| April 5, 2020, 11 p.m. | 1.1 ppb (1) | -0.7 ppb (0) | 1.0 ppb (1) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 53.0 ppb (41) | 0.21 ppb (2) | 17.0 μg/m3 (15) | 11.6 μg/m3 (48) | 48.0 | |
| April 5, 2020, 10 p.m. | 1.7 ppb (2) | -0.7 ppb (0) | 1.0 ppb (1) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 56.0 ppb (43) | 0.2 ppb (2) | 18.0 μg/m3 (16) | 10.6 μg/m3 (44) | 44.0 | |
| April 5, 2020, 9 p.m. | 2.0 ppb (2) | -0.6 ppb (0) | 1.0 ppb (1) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 57.0 ppb (44) | 0.2 ppb (2) | 16.0 μg/m3 (15) | 10.0 μg/m3 (42) | 44.0 | |
| April 5, 2020, 8 p.m. | 1.7 ppb (2) | -0.6 ppb (0) | 1.0 ppb (1) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 57.0 ppb (44) | 0.19 ppb (2) | 16.0 μg/m3 (15) | 10.0 μg/m3 (42) | 44.0 | |
| April 5, 2020, 7 p.m. | 1.7 ppb (2) | -0.6 ppb (0) | 0.0 ppb (0) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 56.0 ppb (43) | 0.19 ppb (2) | 16.0 μg/m3 (15) | 9.6 μg/m3 (40) | 43.0 | |
| April 5, 2020, 6 p.m. | 1.4 ppb (1) | -0.6 ppb (0) | 1.0 ppb (1) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 56.0 ppb (43) | 0.22 ppb (2) | 20.0 μg/m3 (18) | 13.8 μg/m3 (54) | 54.0 | |
| April 5, 2020, 5 p.m. | 1.9 ppb (2) | -0.6 ppb (0) | 1.0 ppb (1) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 55.0 ppb (42) | 0.24 ppb (3) | 22.0 μg/m3 (20) | 15.1 μg/m3 (57) | 57.0 | |
| April 5, 2020, 4 p.m. | 2.0 ppb (2) | -0.5 ppb (0) | 1.0 ppb (1) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 48.0 ppb (37) | 0.24 ppb (3) | 21.0 μg/m3 (19) | 14.4 μg/m3 (55) | 55.0 | |
| April 5, 2020, 3 p.m. | 1.8 ppb (2) | -0.6 ppb (0) | 1.0 ppb (1) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 42.0 ppb (32) | 0.24 ppb (3) | 20.0 μg/m3 (18) | 13.5 μg/m3 (53) | 53.0 | |
| April 5, 2020, 2 p.m. | 5.4 ppb (5) | 0.0 ppb (0) | 5.0 ppb (5) | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 29.0 ppb (22) | 0.3 ppb (3) | 22.0 μg/m3 (20) | 14.5 μg/m3 (55) | 55.0 | |
| April 5, 2020, 1 p.m. | 17.7 ppb (16) | 6.1 ppb (6) | 16.0 ppb (15) | 12.0 ppb (11) | N/A | 0.0 ppb (0) | 13.0 ppb (10) | 0.44 ppb (5) | 25.0 μg/m3 (23) | 18.0 μg/m3 (63) | 63.0 | |
| April 5, 2020, noon | 38.0 ppb (35) | 29.3 ppb (27) | 36.0 ppb (33) | 9.0 ppb (8) | N/A | 0.0 ppb (0) | N/A | 0.61 ppb (7) | 28.0 μg/m3 (25) | 21.7 μg/m3 (71) | 71.0 | |
| April 5, 2020, 11 a.m. | 39.0 ppb (36) | 29.0 ppb (27) | 38.0 ppb (35) | 10.0 ppb (9) | N/A | 0.0 ppb (0) | N/A | 0.61 ppb (7) | 28.0 μg/m3 (25) | 21.2 μg/m3 (70) | 70.0 | |
| April 5, 2020, 10 a.m. | 33.9 ppb (31) | 22.3 ppb (21) | 32.0 ppb (30) | 12.0 ppb (11) | N/A | 0.0 ppb (0) | N/A | 0.56 ppb (6) | 26.0 μg/m3 (24) | 19.9 μg/m3 (67) | 67.0 | |
| April 5, 2020, 9 a.m. | 32.7 ppb (30) | 18.2 ppb (17) | 31.0 ppb (29) | 15.0 ppb (14) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.55 ppb (6) | 26.0 μg/m3 (24) | 19.8 μg/m3 (67) | 67.0 | |
| April 5, 2020, 8 a.m. | 30.6 ppb (28) | 14.7 ppb (14) | 29.0 ppb (27) | 16.0 ppb (15) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.54 ppb (6) | 24.0 μg/m3 (22) | 18.5 μg/m3 (64) | 64.0 | |
| April 5, 2020, 7 a.m. | 31.3 ppb (29) | 11.7 ppb (11) | 30.0 ppb (28) | 20.0 ppb (19) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.53 ppb (6) | 26.0 μg/m3 (24) | 19.5 μg/m3 (66) | 66.0 | |
| April 5, 2020, 6 a.m. | 31.4 ppb (29) | 9.8 ppb (9) | 29.0 ppb (27) | 22.0 ppb (20) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.53 ppb (6) | 24.0 μg/m3 (22) | 17.9 μg/m3 (63) | 63.0 | |
| April 5, 2020, 5 a.m. | 33.5 ppb (31) | 10.2 ppb (9) | 33.0 ppb (31) | 23.0 ppb (21) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.55 ppb (6) | 23.0 μg/m3 (21) | 16.1 μg/m3 (59) | 59.0 | |
| April 5, 2020, 4 a.m. | 46.3 ppb (43) | 17.8 ppb (16) | 46.0 ppb (43) | 28.0 ppb (26) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.6 ppb (7) | N/A | N/A | 43.0 | |
| April 5, 2020, 3 a.m. | 43.2 ppb (40) | 9.4 ppb (9) | 44.0 ppb (41) | 34.0 ppb (31) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.56 ppb (6) | 20.0 μg/m3 (18) | 13.5 μg/m3 (53) | 53.0 | |
| April 5, 2020, 2 a.m. | 40.2 ppb (37) | 4.7 ppb (4) | 42.0 ppb (39) | 36.0 ppb (33) | N/A | 0.0 ppb (0) | 3.0 ppb (2) | 0.53 ppb (6) | 20.0 μg/m3 (18) | 13.3 μg/m3 (53) | 53.0 | |
| April 5, 2020, 1 a.m. | 11.9 ppb (11) | -0.7 ppb (0) | 17.0 ppb (16) | 13.0 ppb (12) | N/A | 0.0 ppb (0) | 26.0 ppb (20) | 0.36 ppb (4) | 19.0 μg/m3 (17) | 11.6 μg/m3 (48) | 48.0 | |
| April 5, 2020, midnight | 1.9 ppb (2) | -0.8 ppb (0) | 2.0 ppb (2) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 45.0 ppb (35) | 0.25 ppb (3) | 15.0 μg/m3 (14) | 9.2 μg/m3 (38) | 38.0 | |
| April 4, 2020, 11 p.m. | 1.4 ppb (1) | -0.7 ppb (0) | 1.0 ppb (1) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 53.0 ppb (41) | 0.22 ppb (2) | 12.0 μg/m3 (11) | 7.3 μg/m3 (30) | 41.0 | |
| April 4, 2020, 10 p.m. | 1.5 ppb (1) | -0.7 ppb (0) | 1.0 ppb (1) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 56.0 ppb (43) | 0.18 ppb (2) | 12.0 μg/m3 (11) | 6.1 μg/m3 (25) | 43.0 | |
| April 4, 2020, 9 p.m. | 1.7 ppb (2) | -0.6 ppb (0) | 1.0 ppb (1) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 55.0 ppb (42) | 0.19 ppb (2) | 13.0 μg/m3 (12) | 7.0 μg/m3 (29) | 42.0 | |
| April 4, 2020, 8 p.m. | 2.0 ppb (2) | -0.6 ppb (0) | 1.0 ppb (1) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 56.0 ppb (43) | 0.19 ppb (2) | 14.0 μg/m3 (13) | 6.2 μg/m3 (26) | 43.0 | |
| April 4, 2020, 7 p.m. | 1.6 ppb (1) | -0.6 ppb (0) | 1.0 ppb (1) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 53.0 ppb (41) | 0.17 ppb (2) | 12.0 μg/m3 (11) | 5.9 μg/m3 (25) | 41.0 | |
| April 4, 2020, 6 p.m. | 1.8 ppb (2) | -0.5 ppb (0) | 1.0 ppb (1) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 51.0 ppb (39) | 0.18 ppb (2) | 12.0 μg/m3 (11) | 6.3 μg/m3 (26) | 39.0 | |
| April 4, 2020, 5 p.m. | 1.8 ppb (2) | -0.5 ppb (0) | 1.0 ppb (1) | 2.0 ppb (2) | N/A | 0.0 ppb (0) | 47.0 ppb (36) | 0.18 ppb (2) | 12.0 μg/m3 (11) | 6.3 μg/m3 (26) | 36.0 | |
| April 4, 2020, 4 p.m. | 2.0 ppb (2) | -0.5 ppb (0) | 1.0 ppb (1) | 3.0 ppb (3) | N/A | 0.0 ppb (0) | 46.0 ppb (35) | 0.18 ppb (2) | 14.0 μg/m3 (13) | 5.8 μg/m3 (24) | 35.0 | |
| April 4, 2020, 3 p.m. | 3.9 ppb (4) | -0.1 ppb (0) | 3.0 ppb (3) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 43.0 ppb (33) | 0.2 ppb (2) | 14.0 μg/m3 (13) | 7.0 μg/m3 (29) | 33.0 | |
| April 4, 2020, 2 p.m. | 21.3 ppb (20) | 8.7 ppb (8) | 19.0 ppb (18) | 13.0 ppb (12) | N/A | 0.0 ppb (0) | 21.0 ppb (16) | 0.36 ppb (4) | 18.0 μg/m3 (16) | 11.3 μg/m3 (47) | 47.0 | |
| April 4, 2020, 1 p.m. | 43.2 ppb (40) | 29.6 ppb (27) | 40.0 ppb (37) | 14.0 ppb (13) | N/A | 0.0 ppb (0) | 1.0 ppb (1) | 0.51 ppb (6) | 20.0 μg/m3 (18) | 13.3 μg/m3 (53) | 53.0 | |
| April 4, 2020, noon | 40.8 ppb (38) | 27.6 ppb (26) | 45.0 ppb (42) | 13.0 ppb (12) | N/A | 0.0 ppb (0) | N/A | 0.49 ppb (5) | 21.0 μg/m3 (19) | 13.5 μg/m3 (53) | 53.0 | |
| April 4, 2020, 11 a.m. | 27.3 ppb (25) | 13.5 ppb (12) | 27.0 ppb (25) | 14.0 ppb (13) | N/A | 0.0 ppb (0) | N/A | 0.43 ppb (5) | 20.0 μg/m3 (18) | 13.3 μg/m3 (53) | 53.0 | |
| April 4, 2020, 10 a.m. | 33.2 ppb (31) | 18.3 ppb (17) | 32.0 ppb (30) | 15.0 ppb (14) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.47 ppb (5) | 20.0 μg/m3 (18) | 13.7 μg/m3 (54) | 54.0 | |
| April 4, 2020, 9 a.m. | 31.2 ppb (29) | 16.1 ppb (15) | 30.0 ppb (28) | 15.0 ppb (14) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.44 ppb (5) | 20.0 μg/m3 (18) | 13.2 μg/m3 (53) | 53.0 | |
| April 4, 2020, 8 a.m. | 31.2 ppb (29) | 16.2 ppb (15) | 29.0 ppb (27) | 15.0 ppb (14) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.44 ppb (5) | 20.0 μg/m3 (18) | 12.9 μg/m3 (52) | 52.0 | |
| April 4, 2020, 7 a.m. | 33.6 ppb (31) | 16.5 ppb (15) | 30.0 ppb (28) | 17.0 ppb (16) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.45 ppb (5) | 20.0 μg/m3 (18) | 13.2 μg/m3 (53) | 53.0 | |
| April 4, 2020, 6 a.m. | 41.4 ppb (38) | 18.8 ppb (17) | 38.0 ppb (35) | 23.0 ppb (21) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.46 ppb (5) | 19.0 μg/m3 (17) | 12.0 μg/m3 (50) | 50.0 | |
| April 4, 2020, 5 a.m. | 36.1 ppb (33) | 11.0 ppb (10) | 35.0 ppb (32) | 25.0 ppb (23) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.46 ppb (5) | 20.0 μg/m3 (18) | 12.7 μg/m3 (51) | 51.0 | |
| April 4, 2020, 4 a.m. | 34.6 ppb (32) | 6.3 ppb (6) | 33.0 ppb (31) | 28.0 ppb (26) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.44 ppb (5) | N/A | N/A | 32.0 | |
| April 4, 2020, 3 a.m. | 45.3 ppb (42) | 12.5 ppb (12) | 42.0 ppb (39) | 33.0 ppb (31) | N/A | 0.0 ppb (0) | 1.0 ppb (1) | 0.46 ppb (5) | 16.0 μg/m3 (15) | 10.0 μg/m3 (42) | 42.0 | |
| April 4, 2020, 2 a.m. | 53.6 ppb (50) | 13.8 ppb (13) | 56.0 ppb (52) | 40.0 ppb (37) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.46 ppb (5) | 13.0 μg/m3 (12) | 7.1 μg/m3 (30) | 52.0 | |
| April 4, 2020, 1 a.m. | 43.4 ppb (40) | 2.6 ppb (2) | 46.0 ppb (43) | 41.0 ppb (38) | N/A | 0.0 ppb (0) | 4.0 ppb (3) | 0.42 ppb (5) | 12.0 μg/m3 (11) | 5.9 μg/m3 (25) | 43.0 | |
| April 4, 2020, midnight | 18.6 ppb (17) | -0.7 ppb (0) | 19.0 ppb (18) | 19.0 ppb (18) | N/A | 0.0 ppb (0) | 29.0 ppb (22) | 0.28 ppb (3) | 11.0 μg/m3 (10) | 5.1 μg/m3 (21) | 22.0 | |
| April 3, 2020, 11 p.m. | 6.4 ppb (6) | -0.6 ppb (0) | 6.0 ppb (6) | 7.0 ppb (6) | N/A | 0.0 ppb (0) | 49.0 ppb (38) | 0.2 ppb (2) | 10.0 μg/m3 (9) | 4.5 μg/m3 (19) | 38.0 | |
| April 3, 2020, 10 p.m. | 3.8 ppb (4) | -0.5 ppb (0) | 3.0 ppb (3) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 55.0 ppb (42) | 0.18 ppb (2) | 9.0 μg/m3 (8) | 4.6 μg/m3 (19) | 42.0 | |
| April 3, 2020, 9 p.m. | 3.5 ppb (3) | -0.4 ppb (0) | 3.0 ppb (3) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 57.0 ppb (44) | 0.18 ppb (2) | 10.0 μg/m3 (9) | 4.5 μg/m3 (19) | 44.0 | |
| April 3, 2020, 8 p.m. | 3.9 ppb (4) | -0.3 ppb (0) | 3.0 ppb (3) | 4.0 ppb (4) | N/A | 0.0 ppb (0) | 58.0 ppb (45) | 0.18 ppb (2) | 11.0 μg/m3 (10) | 4.6 μg/m3 (19) | 45.0 | |
| April 3, 2020, 7 p.m. | 4.3 ppb (4) | -0.2 ppb (0) | 3.0 ppb (3) | 5.0 ppb (5) | N/A | 0.0 ppb (0) | 59.0 ppb (45) | 0.18 ppb (2) | 11.0 μg/m3 (10) | 4.8 μg/m3 (20) | 45.0 | |
| April 3, 2020, 6 p.m. | 7.0 ppb (6) | 0.5 ppb (0) | 6.0 ppb (6) | 7.0 ppb (6) | N/A | 0.0 ppb (0) | 51.0 ppb (39) | 0.2 ppb (2) | 10.0 μg/m3 (9) | 4.5 μg/m3 (19) | 39.0 | |
| April 3, 2020, 5 p.m. | 11.8 ppb (11) | 2.0 ppb (2) | 11.0 ppb (10) | 10.0 ppb (9) | N/A | 0.0 ppb (0) | 44.0 ppb (34) | 0.22 ppb (2) | 16.0 μg/m3 (15) | 4.9 μg/m3 (20) | 34.0 | |
| April 3, 2020, 4 p.m. | 10.2 ppb (9) | 1.7 ppb (2) | 9.0 ppb (8) | 9.0 ppb (8) | N/A | 0.0 ppb (0) | 41.0 ppb (32) | 0.21 ppb (2) | 9.0 μg/m3 (8) | 4.6 μg/m3 (19) | 32.0 | |
| April 3, 2020, 3 p.m. | 10.5 ppb (10) | 2.0 ppb (2) | 9.0 ppb (8) | 9.0 ppb (8) | N/A | 0.0 ppb (0) | 37.0 ppb (28) | 0.21 ppb (2) | 8.0 μg/m3 (7) | 4.5 μg/m3 (19) | 28.0 | |
| April 3, 2020, 2 p.m. | 18.8 ppb (17) | 5.9 ppb (5) | 17.0 ppb (16) | 13.0 ppb (12) | N/A | 0.0 ppb (0) | 27.0 ppb (21) | 0.26 ppb (3) | 9.0 μg/m3 (8) | 5.1 μg/m3 (21) | 21.0 | |
| April 3, 2020, 1 p.m. | 104.4 ppb (101) | 81.2 ppb (79) | 97.0 ppb (96) | 23.0 ppb (21) | N/A | 0.0 ppb (0) | 3.0 ppb (2) | 0.57 ppb (6) | 17.0 μg/m3 (15) | 7.4 μg/m3 (31) | 101.0 | |
| April 3, 2020, noon | 99.3 ppb (98) | 82.1 ppb (80) | 98.0 ppb (97) | 17.0 ppb (16) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.5 ppb (6) | 14.0 μg/m3 (13) | 7.2 μg/m3 (30) | 98.0 | |
| April 3, 2020, 11 a.m. | 98.4 ppb (97) | 81.3 ppb (79) | 95.0 ppb (94) | 17.0 ppb (16) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.47 ppb (5) | 12.0 μg/m3 (11) | 7.0 μg/m3 (29) | 97.0 | |
| April 3, 2020, 10 a.m. | 92.3 ppb (91) | 73.0 ppb (70) | 89.0 ppb (87) | 19.0 ppb (18) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.41 ppb (5) | 13.0 μg/m3 (12) | 6.9 μg/m3 (29) | 91.0 | |
| April 3, 2020, 9 a.m. | 76.2 ppb (74) | 54.2 ppb (50) | 73.0 ppb (70) | 22.0 ppb (20) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.35 ppb (4) | 11.0 μg/m3 (10) | 6.4 μg/m3 (27) | 74.0 | |
| April 3, 2020, 8 a.m. | 52.0 ppb (48) | 30.0 ppb (28) | 50.0 ppb (46) | 22.0 ppb (20) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.32 ppb (4) | 11.0 μg/m3 (10) | 6.3 μg/m3 (26) | 48.0 | |
| April 3, 2020, 7 a.m. | 54.0 ppb (50) | 29.0 ppb (27) | 57.0 ppb (53) | 25.0 ppb (23) | N/A | 0.0 ppb (0) | 0.0 ppb (0) | 0.32 ppb (4) | 12.0 μg/m3 (11) | 6.4 μg/m3 (27) | 53.0 | |
| April 3, 2020, 6 a.m. | 17.2 ppb (16) | 0.7 ppb (1) | 18.0 ppb (17) | 17.0 ppb (16) | N/A | 0.0 ppb (0) | 9.0 ppb (7) | 0.23 ppb (3) | 10.0 μg/m3 (9) | 6.1 μg/m3 (25) | 25.0 | |
| April 3, 2020, 5 a.m. | 12.4 ppb (11) | -0.1 ppb (0) | 11.0 ppb (10) | 13.0 ppb (12) | N/A | 0.0 ppb (0) | 15.0 ppb (12) | 0.23 ppb (3) | 9.0 μg/m3 (8) | 6.1 μg/m3 (25) | 25.0 | |
| April 3, 2020, 4 a.m. | 27.1 ppb (25) | 3.2 ppb (3) | 18.0 ppb (17) | 24.0 ppb (22) | N/A | 0.0 ppb (0) | 10.0 ppb (8) | 0.28 ppb (3) | N/A | N/A | 25.0 | |
| April 3, 2020, 3 a.m. | 47.6 ppb (44) | 10.9 ppb (10) | 38.0 ppb (35) | 37.0 ppb (34) | N/A | 0.0 ppb (0) | 3.0 ppb (2) | 0.34 ppb (4) | 13.0 μg/m3 (12) | 6.9 μg/m3 (29) | 44.0 | |
| April 3, 2020, 2 a.m. | 37.0 ppb (34) | 4.9 ppb (5) | 45.0 ppb (42) | 32.0 ppb (30) | N/A | 0.0 ppb (0) | 4.0 ppb (3) | 0.34 ppb (4) | 13.0 μg/m3 (12) | 7.4 μg/m3 (31) | 42.0 | |
| April 3, 2020, 1 a.m. | 23.2 ppb (21) | -0.3 ppb (0) | 24.0 ppb (22) | 24.0 ppb (22) | N/A | 0.0 ppb (0) | 14.0 ppb (11) | 0.31 ppb (3) | 11.0 μg/m3 (10) | 6.0 μg/m3 (25) | 25.0 | |
| April 3, 2020, midnight | 12.1 ppb (11) | -0.7 ppb (0) | 13.0 ppb (12) | 13.0 ppb (12) | N/A | 0.0 ppb (0) | 36.0 ppb (28) | 0.21 ppb (2) | 10.0 μg/m3 (9) | 5.0 μg/m3 (21) | 28.0 | |
| April 2, 2020, 11 p.m. | 5.6 ppb (5) | -0.7 ppb (0) | 5.0 ppb (5) | 6.0 ppb (6) | N/A | 0.0 ppb (0) | 44.0 ppb (34) | 0.18 ppb (2) | 11.0 μg/m3 (10) | 5.3 μg/m3 (22) | 34.0 |