Arroyo Grande (Willow Rd) CA, US: 35.04676, -120.58777
| Date Observed (UTC) | NOX | NO | NOY | NO2 | NO2Y | SO2 | OZONE | CO | PM10 | PM2.5 | AQI | AQI/500 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| April 6, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | |
| April 6, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 μg/m3 (8) | 0.0 μg/m3 (0) | 8.0 | |
| April 6, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 μg/m3 (5) | 3.0 μg/m3 (12) | 12.0 | |
| April 6, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 μg/m3 (1) | 6.0 μg/m3 (25) | 25.0 | |
| April 6, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.0 μg/m3 (5) | 2.0 μg/m3 (8) | 8.0 | |
| April 6, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (3) | 0.0 μg/m3 (0) | 3.0 | |
| April 6, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (2) | -1.0 μg/m3 (0) | 2.0 | |
| April 6, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (3) | 0.0 μg/m3 (0) | 3.0 | |
| April 6, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (3) | 0.0 μg/m3 (0) | 3.0 | |
| April 6, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (3) | 0.0 μg/m3 (0) | 3.0 | |
| April 6, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (4) | 0.0 μg/m3 (0) | 4.0 | |
| April 6, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.0 μg/m3 (5) | 0.0 μg/m3 (0) | 5.0 | |
| April 6, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 μg/m3 (6) | 0.0 μg/m3 (0) | 6.0 | |
| April 6, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 μg/m3 (8) | 0.0 μg/m3 (0) | 8.0 | |
| April 6, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 μg/m3 (18) | -1.0 μg/m3 (0) | 18.0 | |
| April 6, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 μg/m3 (14) | -2.0 μg/m3 (0) | 14.0 | |
| April 6, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 μg/m3 (14) | 1.0 μg/m3 (4) | 14.0 | |
| April 6, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (3) | 2.0 μg/m3 (8) | 8.0 | |
| April 6, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 1.0 μg/m3 (1) | 0.0 μg/m3 (0) | 1.0 | |
| April 6, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (4) | 0.0 μg/m3 (0) | 4.0 | |
| April 6, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 μg/m3 (5) | 0.0 μg/m3 (0) | 5.0 | |
| April 5, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (2) | -1.0 μg/m3 (0) | 2.0 | |
| April 5, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 4.0 μg/m3 (4) | -2.0 μg/m3 (0) | 4.0 | |
| April 5, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (3) | 0.0 μg/m3 (0) | 3.0 | |
| April 5, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | -3.0 μg/m3 (0) | 0.0 μg/m3 (0) | N/A | |
| April 5, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | -3.0 μg/m3 (0) | 0.0 μg/m3 (0) | N/A | |
| April 5, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 μg/m3 (0) | N/A | |
| April 5, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 μg/m3 (0) | N/A | |
| April 5, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (3) | 0.0 μg/m3 (0) | 3.0 | |
| April 5, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.0 μg/m3 (5) | 0.0 μg/m3 (0) | 5.0 | |
| April 5, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (3) | 1.0 μg/m3 (4) | 4.0 | |
| April 5, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (2) | 0.0 μg/m3 (0) | 2.0 | |
| April 5, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 0.0 μg/m3 (0) | 0.0 μg/m3 (0) | N/A | |
| April 5, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (2) | -2.0 μg/m3 (0) | 2.0 | |
| April 5, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (2) | -2.0 μg/m3 (0) | 2.0 | |
| April 5, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 2.0 μg/m3 (2) | 0.0 μg/m3 (0) | 2.0 | |
| April 5, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 3.0 μg/m3 (3) | 0.0 μg/m3 (0) | 3.0 | |
| April 5, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 μg/m3 (6) | -2.0 μg/m3 (0) | 6.0 | |
| April 5, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.0 μg/m3 (10) | -2.0 μg/m3 (0) | 10.0 | |
| April 5, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 μg/m3 (15) | -2.0 μg/m3 (0) | 15.0 | |
| April 5, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 μg/m3 (21) | 0.0 μg/m3 (0) | 21.0 | |
| April 5, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 μg/m3 (5) | 2.0 μg/m3 (8) | 8.0 | |
| April 5, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 μg/m3 (5) | 1.0 μg/m3 (4) | 5.0 | |
| April 5, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 μg/m3 (7) | 2.0 μg/m3 (8) | 8.0 | |
| April 5, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 μg/m3 (15) | 4.0 μg/m3 (17) | 17.0 | |
| April 4, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 μg/m3 (26) | 7.0 μg/m3 (29) | 29.0 | |
| April 4, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 48.0 μg/m3 (44) | 12.0 μg/m3 (50) | 50.0 | |
| April 4, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 μg/m3 (46) | 9.0 μg/m3 (38) | 46.0 | |
| April 4, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 μg/m3 (32) | 4.0 μg/m3 (17) | 32.0 | |
| April 4, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 μg/m3 (18) | 3.0 μg/m3 (12) | 18.0 | |
| April 4, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 μg/m3 (24) | 4.0 μg/m3 (17) | 24.0 | |
| April 4, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 μg/m3 (19) | 3.0 μg/m3 (12) | 19.0 | |
| April 4, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 28.0 μg/m3 (25) | 2.0 μg/m3 (8) | 25.0 | |
| April 4, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 μg/m3 (25) | 2.0 μg/m3 (8) | 25.0 | |
| April 4, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.0 μg/m3 (12) | 1.0 μg/m3 (4) | 12.0 | |
| April 4, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.0 μg/m3 (12) | 3.0 μg/m3 (12) | 12.0 | |
| April 4, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 μg/m3 (11) | 5.0 μg/m3 (21) | 21.0 | |
| April 4, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 μg/m3 (9) | 3.0 μg/m3 (12) | 12.0 | |
| April 4, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 μg/m3 (17) | 1.0 μg/m3 (4) | 17.0 | |
| April 4, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 μg/m3 (16) | 3.0 μg/m3 (12) | 16.0 | |
| April 4, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 20.0 μg/m3 (18) | 6.0 μg/m3 (25) | 25.0 | |
| April 4, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 μg/m3 (25) | 6.0 μg/m3 (25) | 25.0 | |
| April 4, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 27.0 μg/m3 (25) | 4.0 μg/m3 (17) | 25.0 | |
| April 4, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 33.0 μg/m3 (30) | 5.0 μg/m3 (21) | 30.0 | |
| April 4, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 μg/m3 (38) | 7.0 μg/m3 (29) | 38.0 | |
| April 4, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 μg/m3 (31) | 7.0 μg/m3 (29) | 31.0 | |
| April 4, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 μg/m3 (32) | 8.0 μg/m3 (33) | 33.0 | |
| April 4, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 85.0 μg/m3 (65) | 16.0 μg/m3 (59) | 65.0 | |
| April 4, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 145.0 μg/m3 (95) | 28.0 μg/m3 (84) | 95.0 | |
| April 3, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 189.0 μg/m3 (117) | 36.0 μg/m3 (101) | 117.0 | |
| April 3, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 223.0 μg/m3 (134) | 44.0 μg/m3 (121) | 134.0 | |
| April 3, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 265.0 μg/m3 (155) | 50.0 μg/m3 (136) | 155.0 | |
| April 3, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 250.0 μg/m3 (148) | 53.0 μg/m3 (144) | 148.0 | |
| April 3, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 171.0 μg/m3 (108) | 36.0 μg/m3 (101) | 108.0 | |
| April 3, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 61.0 μg/m3 (53) | 13.0 μg/m3 (52) | 53.0 | |
| April 3, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 μg/m3 (26) | 6.0 μg/m3 (25) | 26.0 | |
| April 3, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 25.0 μg/m3 (23) | 2.0 μg/m3 (8) | 23.0 | |
| April 3, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 30.0 μg/m3 (27) | 3.0 μg/m3 (12) | 27.0 | |
| April 3, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 47.0 μg/m3 (43) | 6.0 μg/m3 (25) | 43.0 | |
| April 3, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 μg/m3 (15) | 3.0 μg/m3 (12) | 15.0 | |
| April 3, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 μg/m3 (6) | 4.0 μg/m3 (17) | 17.0 | |
| April 3, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 μg/m3 (6) | 3.0 μg/m3 (12) | 12.0 | |
| April 3, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 μg/m3 (7) | 5.0 μg/m3 (21) | 21.0 | |
| April 3, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 μg/m3 (6) | 3.0 μg/m3 (12) | 12.0 | |
| April 3, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 μg/m3 (11) | 3.0 μg/m3 (12) | 12.0 | |
| April 3, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 μg/m3 (11) | 4.0 μg/m3 (17) | 17.0 | |
| April 3, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 μg/m3 (16) | 5.0 μg/m3 (21) | 21.0 | |
| April 3, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 μg/m3 (26) | 4.0 μg/m3 (17) | 26.0 | |
| April 3, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 29.0 μg/m3 (26) | 4.0 μg/m3 (17) | 26.0 | |
| April 3, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.0 μg/m3 (10) | 4.0 μg/m3 (17) | 17.0 | |
| April 3, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 μg/m3 (13) | 3.0 μg/m3 (12) | 13.0 | |
| April 3, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 45.0 μg/m3 (41) | 3.0 μg/m3 (12) | 41.0 | |
| April 3, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 133.0 μg/m3 (89) | 26.0 μg/m3 (80) | 89.0 | |
| April 2, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 174.0 μg/m3 (110) | 37.0 μg/m3 (104) | 110.0 | |
| April 2, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 231.0 μg/m3 (138) | 47.0 μg/m3 (129) | 138.0 | |
| April 2, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 237.0 μg/m3 (141) | 50.0 μg/m3 (136) | 141.0 | |
| April 2, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 194.0 μg/m3 (120) | 43.0 μg/m3 (119) | 120.0 | |
| April 2, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 μg/m3 (63) | 63.0 | |
| April 2, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 μg/m3 (19) | 2.0 μg/m3 (8) | 19.0 | |
| April 2, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 μg/m3 (17) | 2.0 μg/m3 (8) | 17.0 | |
| April 2, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 26.0 μg/m3 (24) | 2.0 μg/m3 (8) | 24.0 | |
| April 2, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 42.0 μg/m3 (38) | 3.0 μg/m3 (12) | 38.0 | |
| April 2, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 24.0 μg/m3 (22) | 2.0 μg/m3 (8) | 22.0 | |
| April 2, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 μg/m3 (15) | 2.0 μg/m3 (8) | 15.0 | |
| April 2, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 μg/m3 (9) | 4.0 μg/m3 (17) | 17.0 | |
| April 2, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 μg/m3 (11) | 7.0 μg/m3 (29) | 29.0 | |
| April 2, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 μg/m3 (16) | 7.0 μg/m3 (29) | 29.0 | |
| April 2, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 μg/m3 (15) | 3.0 μg/m3 (12) | 15.0 | |
| April 2, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 μg/m3 (19) | 3.0 μg/m3 (12) | 19.0 | |
| April 2, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 17.0 μg/m3 (15) | 3.0 μg/m3 (12) | 15.0 | |
| April 2, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 21.0 μg/m3 (19) | 4.0 μg/m3 (17) | 19.0 | |
| April 2, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 35.0 μg/m3 (32) | 4.0 μg/m3 (17) | 32.0 | |
| April 2, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 32.0 μg/m3 (29) | 6.0 μg/m3 (25) | 29.0 | |
| April 2, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 34.0 μg/m3 (31) | 9.0 μg/m3 (38) | 38.0 | |
| April 2, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 μg/m3 (46) | 11.0 μg/m3 (46) | 46.0 | |
| April 2, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 109.0 μg/m3 (77) | 19.0 μg/m3 (65) | 77.0 | |
| April 2, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 179.0 μg/m3 (112) | 35.0 μg/m3 (99) | 112.0 | |
| April 1, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 37.0 μg/m3 (104) | 104.0 | |
| April 1, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 51.0 μg/m3 (139) | 139.0 | |
| April 1, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 246.0 μg/m3 (146) | 48.0 μg/m3 (131) | 146.0 | |
| April 1, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 269.0 μg/m3 (157) | 57.0 μg/m3 (151) | 157.0 | |
| April 1, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 219.0 μg/m3 (132) | 41.0 μg/m3 (114) | 132.0 | |
| April 1, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 118.0 μg/m3 (82) | 28.0 μg/m3 (84) | 84.0 | |
| April 1, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 μg/m3 (20) | 2.0 μg/m3 (8) | 20.0 | |
| April 1, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 μg/m3 (14) | 1.0 μg/m3 (4) | 14.0 | |
| April 1, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.0 μg/m3 (12) | 0.0 μg/m3 (0) | 12.0 | |
| April 1, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 μg/m3 (14) | 1.0 μg/m3 (4) | 14.0 | |
| April 1, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 μg/m3 (11) | 1.0 μg/m3 (4) | 11.0 | |
| April 1, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 μg/m3 (8) | 3.0 μg/m3 (12) | 12.0 | |
| April 1, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 μg/m3 (7) | 5.0 μg/m3 (21) | 21.0 | |
| April 1, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 μg/m3 (7) | 0.0 μg/m3 (0) | 7.0 | |
| April 1, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.0 μg/m3 (12) | 1.0 μg/m3 (4) | 12.0 | |
| April 1, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 μg/m3 (9) | 3.0 μg/m3 (12) | 12.0 | |
| April 1, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.0 μg/m3 (12) | 3.0 μg/m3 (12) | 12.0 | |
| April 1, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 μg/m3 (13) | 2.0 μg/m3 (8) | 13.0 | |
| April 1, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 μg/m3 (15) | 3.0 μg/m3 (12) | 15.0 | |
| April 1, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 18.0 μg/m3 (16) | 3.0 μg/m3 (12) | 16.0 | |
| April 1, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 5.0 μg/m3 (5) | 5.0 μg/m3 (21) | 21.0 | |
| April 1, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 23.0 μg/m3 (21) | 8.0 μg/m3 (33) | 33.0 | |
| April 1, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 54.0 μg/m3 (49) | 13.0 μg/m3 (52) | 52.0 | |
| April 1, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 89.0 μg/m3 (67) | 17.0 μg/m3 (61) | 67.0 | |
| March 31, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 114.0 μg/m3 (80) | 19.0 μg/m3 (65) | 80.0 | |
| March 31, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 128.0 μg/m3 (86) | 26.0 μg/m3 (80) | 86.0 | |
| March 31, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 83.0 μg/m3 (64) | 12.0 μg/m3 (50) | 64.0 | |
| March 31, 2020, 8 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 6.0 μg/m3 (5) | 5.0 μg/m3 (21) | 21.0 | |
| March 31, 2020, 7 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 μg/m3 (9) | 4.0 μg/m3 (17) | 17.0 | |
| March 31, 2020, 6 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 μg/m3 (15) | 2.0 μg/m3 (8) | 15.0 | |
| March 31, 2020, 5 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 16.0 μg/m3 (15) | 5.0 μg/m3 (21) | 21.0 | |
| March 31, 2020, 4 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 19.0 μg/m3 (17) | 1.0 μg/m3 (4) | 17.0 | |
| March 31, 2020, 3 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 μg/m3 (14) | 4.0 μg/m3 (17) | 17.0 | |
| March 31, 2020, 2 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 μg/m3 (14) | 2.0 μg/m3 (8) | 14.0 | |
| March 31, 2020, 1 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 15.0 μg/m3 (14) | 1.0 μg/m3 (4) | 14.0 | |
| March 31, 2020, noon | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 14.0 μg/m3 (13) | 3.0 μg/m3 (12) | 13.0 | |
| March 31, 2020, 11 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 μg/m3 (8) | 1.0 μg/m3 (4) | 8.0 | |
| March 31, 2020, 10 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 μg/m3 (7) | 1.0 μg/m3 (4) | 7.0 | |
| March 31, 2020, 9 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 7.0 μg/m3 (6) | 2.0 μg/m3 (8) | 8.0 | |
| March 31, 2020, 8 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 9.0 μg/m3 (8) | 1.0 μg/m3 (4) | 8.0 | |
| March 31, 2020, 7 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 8.0 μg/m3 (7) | 1.0 μg/m3 (4) | 7.0 | |
| March 31, 2020, 6 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 μg/m3 (11) | 3.0 μg/m3 (12) | 12.0 | |
| March 31, 2020, 5 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 12.0 μg/m3 (11) | 4.0 μg/m3 (17) | 17.0 | |
| March 31, 2020, 4 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 13.0 μg/m3 (12) | 2.0 μg/m3 (8) | 12.0 | |
| March 31, 2020, 3 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 10.0 μg/m3 (9) | 3.0 μg/m3 (12) | 12.0 | |
| March 31, 2020, 2 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 11.0 μg/m3 (10) | 1.0 μg/m3 (4) | 10.0 | |
| March 31, 2020, 1 a.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 22.0 μg/m3 (20) | 5.0 μg/m3 (21) | 21.0 | |
| March 31, 2020, midnight | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 71.0 μg/m3 (58) | 11.0 μg/m3 (46) | 58.0 | |
| March 30, 2020, 11 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 173.0 μg/m3 (109) | 32.0 μg/m3 (93) | 109.0 | |
| March 30, 2020, 10 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 264.0 μg/m3 (154) | 44.0 μg/m3 (121) | 154.0 | |
| March 30, 2020, 9 p.m. | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 272.0 μg/m3 (158) | 50.0 μg/m3 (136) | 158.0 |