ID: 156

AQSQID: 060410001

Site Name: San Rafael

Added: April 21, 2020, 6:24 p.m.

Updated: Sept. 18, 2020, 12:40 p.m.

Location: San Rafael (Montecito/Happy Valley), CA

Reporting: True, Located: True

Current AQI: 17.0

San Rafael (Montecito/Happy Valley) CA, US: 37.9722, -122.5189

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 18, 2020, 11 a.m. 5.3 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 13.0 ppb (10) 0.24 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 18, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 18, 2020, 9 a.m. 1.3 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 23.0 ppb (18) 0.22 ppb (2) N/A 4.0 μg/m3 (17) 18.0
 
Sept. 18, 2020, 8 a.m. 1.7 ppb (2) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 24.0 ppb (18) 0.22 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 18, 2020, 7 a.m. 1.1 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 24.0 ppb (18) 0.22 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 18, 2020, 6 a.m. 1.0 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 23.0 ppb (18) 0.22 ppb (2) N/A 4.0 μg/m3 (17) 18.0
 
Sept. 18, 2020, 5 a.m. 1.4 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 23.0 ppb (18) 0.23 ppb (3) N/A 4.0 μg/m3 (17) 18.0
 
Sept. 18, 2020, 4 a.m. 3.4 ppb (3) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 21.0 ppb (16) 0.26 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 18, 2020, 3 a.m. 3.4 ppb (3) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 22.0 ppb (17) 0.26 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 18, 2020, 2 a.m. 5.1 ppb (5) 1.3 ppb (1) N/A 4.0 ppb (4) N/A N/A 23.0 ppb (18) 0.29 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 18, 2020, 1 a.m. 8.0 ppb (7) 2.1 ppb (2) N/A 6.0 ppb (6) N/A N/A 25.0 ppb (19) 0.32 ppb (4) N/A 14.0 μg/m3 (54) 54.0
 
Sept. 18, 2020, midnight 8.9 ppb (8) 2.8 ppb (3) N/A 6.0 ppb (6) N/A N/A 25.0 ppb (19) 0.33 ppb (4) N/A 15.0 μg/m3 (56) 56.0
 
Sept. 17, 2020, 11 p.m. 8.0 ppb (7) 2.8 ppb (3) N/A 5.0 ppb (5) N/A N/A 23.0 ppb (18) 0.3 ppb (3) N/A 3.0 μg/m3 (12) 18.0
 
Sept. 17, 2020, 10 p.m. 4.9 ppb (5) 1.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 21.0 ppb (16) 0.22 ppb (2) N/A 1.0 μg/m3 (4) 16.0
 
Sept. 17, 2020, 9 p.m. 3.8 ppb (4) 1.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 19.0 ppb (15) 0.19 ppb (2) N/A 1.0 μg/m3 (4) 15.0
 
Sept. 17, 2020, 8 p.m. 4.2 ppb (4) 1.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 15.0 ppb (12) 0.19 ppb (2) N/A 0.0 μg/m3 (0) 12.0
 
Sept. 17, 2020, 7 p.m. 3.3 ppb (3) 1.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 13.0 ppb (10) 0.16 ppb (2) N/A 2.0 μg/m3 (8) 10.0
 
Sept. 17, 2020, 6 p.m. 5.0 ppb (5) 2.5 ppb (2) N/A 3.0 ppb (3) N/A N/A 10.0 ppb (8) 0.18 ppb (2) N/A 0.0 μg/m3 (0) 8.0
 
Sept. 17, 2020, 5 p.m. 6.5 ppb (6) 3.6 ppb (3) N/A 3.0 ppb (3) N/A N/A 7.0 ppb (5) 0.19 ppb (2) N/A -2.0 μg/m3 (0) 6.0
 
Sept. 17, 2020, 4 p.m. 8.3 ppb (8) 4.6 ppb (4) N/A 4.0 ppb (4) N/A N/A 6.0 ppb (5) 0.22 ppb (2) N/A -1.0 μg/m3 (0) 8.0
 
Sept. 17, 2020, 3 p.m. 10.7 ppb (10) 5.5 ppb (5) N/A 5.0 ppb (5) N/A N/A 4.0 ppb (3) 0.25 ppb (3) N/A 0.0 μg/m3 (0) 10.0
 
Sept. 17, 2020, 2 p.m. 12.6 ppb (12) 6.4 ppb (6) N/A 6.0 ppb (6) N/A N/A 0.0 ppb (0) 0.27 ppb (3) N/A 2.0 μg/m3 (8) 12.0
 
Sept. 17, 2020, 1 p.m. 6.5 ppb (6) 1.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 0.0 ppb (0) 0.17 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
Sept. 17, 2020, noon 6.9 ppb (6) 1.8 ppb (2) N/A 5.0 ppb (5) N/A N/A 1.0 ppb (1) 0.15 ppb (2) N/A 1.0 μg/m3 (4) 6.0
 
Sept. 17, 2020, 11 a.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
Sept. 17, 2020, 10 a.m. 3.6 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 4.0 ppb (3) 0.14 ppb (2) N/A 0.0 μg/m3 (0) 3.0
 
Sept. 17, 2020, 9 a.m. 3.0 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 4.0 ppb (3) 0.14 ppb (2) N/A -1.0 μg/m3 (0) 3.0
 
Sept. 17, 2020, 8 a.m. 3.7 ppb (3) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 4.0 ppb (3) 0.15 ppb (2) N/A 0.0 μg/m3 (0) 4.0
 
Sept. 17, 2020, 7 a.m. 6.9 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 2.0 ppb (2) 0.15 ppb (2) N/A 1.0 μg/m3 (4) 6.0
 
Sept. 17, 2020, 6 a.m. 2.8 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 7.0 ppb (5) 0.16 ppb (2) N/A 1.0 μg/m3 (4) 5.0
 
Sept. 17, 2020, 5 a.m. 2.6 ppb (2) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 7.0 ppb (5) 0.16 ppb (2) N/A -2.0 μg/m3 (0) 5.0
 
Sept. 17, 2020, 4 a.m. 2.9 ppb (3) 1.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 7.0 ppb (5) 0.17 ppb (2) N/A -1.0 μg/m3 (0) 5.0
 
Sept. 17, 2020, 3 a.m. 3.4 ppb (3) 1.7 ppb (2) N/A 2.0 ppb (2) N/A N/A 7.0 ppb (5) 0.18 ppb (2) N/A 2.0 μg/m3 (8) 8.0
 
Sept. 17, 2020, 2 a.m. 3.4 ppb (3) 1.8 ppb (2) N/A 2.0 ppb (2) N/A N/A 8.0 ppb (6) 0.18 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 17, 2020, 1 a.m. 5.0 ppb (5) 2.9 ppb (3) N/A 2.0 ppb (2) N/A N/A 8.0 ppb (6) 0.22 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 17, 2020, midnight 4.8 ppb (4) 2.4 ppb (2) N/A 2.0 ppb (2) N/A N/A 11.0 ppb (8) 0.2 ppb (2) N/A 16.0 μg/m3 (59) 59.0
 
Sept. 16, 2020, 11 p.m. 5.6 ppb (5) 2.9 ppb (3) N/A 3.0 ppb (3) N/A N/A 13.0 ppb (10) 0.19 ppb (2) N/A 2.0 μg/m3 (8) 10.0
 
Sept. 16, 2020, 10 p.m. 4.0 ppb (4) 1.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 18.0 ppb (14) 0.19 ppb (2) N/A 2.0 μg/m3 (8) 14.0
 
Sept. 16, 2020, 9 p.m. 6.2 ppb (6) 2.3 ppb (2) N/A 4.0 ppb (4) N/A N/A 18.0 ppb (14) 0.17 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 16, 2020, 8 p.m. 4.0 ppb (4) 1.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 19.0 ppb (15) 0.17 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 16, 2020, 7 p.m. 4.9 ppb (5) 1.9 ppb (2) N/A 3.0 ppb (3) N/A N/A 15.0 ppb (12) 0.18 ppb (2) N/A 1.0 μg/m3 (4) 12.0
 
Sept. 16, 2020, 6 p.m. 5.4 ppb (5) 2.5 ppb (2) N/A 3.0 ppb (3) N/A N/A 11.0 ppb (8) 0.17 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
Sept. 16, 2020, 5 p.m. 7.0 ppb (6) 3.8 ppb (4) N/A 3.0 ppb (3) N/A N/A 8.0 ppb (6) 0.18 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
Sept. 16, 2020, 4 p.m. 5.3 ppb (5) 2.9 ppb (3) N/A 2.0 ppb (2) N/A N/A 9.0 ppb (7) 0.17 ppb (2) N/A 0.0 μg/m3 (0) 7.0
 
Sept. 16, 2020, 3 p.m. 13.2 ppb (12) 6.7 ppb (6) N/A 7.0 ppb (6) N/A N/A 4.0 ppb (3) 0.29 ppb (3) N/A 1.0 μg/m3 (4) 12.0
 
Sept. 16, 2020, 2 p.m. 11.1 ppb (10) 4.5 ppb (4) N/A 7.0 ppb (6) N/A N/A 2.0 ppb (2) 0.25 ppb (3) N/A 0.0 μg/m3 (0) 10.0
 
Sept. 16, 2020, 1 p.m. 7.5 ppb (7) 3.8 ppb (4) N/A 4.0 ppb (4) N/A N/A 5.0 ppb (4) 0.19 ppb (2) N/A -1.0 μg/m3 (0) 7.0
 
Sept. 16, 2020, noon 5.2 ppb (5) 1.3 ppb (1) N/A 4.0 ppb (4) N/A N/A 5.0 ppb (4) 0.17 ppb (2) N/A 0.0 μg/m3 (0) 5.0
 
Sept. 16, 2020, 11 a.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
Sept. 16, 2020, 10 a.m. 2.9 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 6.0 ppb (5) 0.15 ppb (2) N/A 1.0 μg/m3 (4) 5.0
 
Sept. 16, 2020, 9 a.m. 2.8 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 5.0 ppb (4) 0.15 ppb (2) N/A -1.0 μg/m3 (0) 4.0
 
Sept. 16, 2020, 8 a.m. 2.3 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 6.0 ppb (5) 0.14 ppb (2) N/A 0.0 μg/m3 (0) 5.0
 
Sept. 16, 2020, 7 a.m. 2.4 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 7.0 ppb (5) 0.14 ppb (2) N/A 0.0 μg/m3 (0) 5.0
 
Sept. 16, 2020, 6 a.m. 1.7 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 8.0 ppb (6) 0.14 ppb (2) N/A -3.0 μg/m3 (0) 6.0
 
Sept. 16, 2020, 5 a.m. 2.3 ppb (2) 0.9 ppb (1) N/A 1.0 ppb (1) N/A N/A 8.0 ppb (6) 0.14 ppb (2) N/A -4.0 μg/m3 (0) 6.0
 
Sept. 16, 2020, 4 a.m. 3.9 ppb (4) 1.7 ppb (2) N/A 2.0 ppb (2) N/A N/A 8.0 ppb (6) 0.17 ppb (2) N/A -2.0 μg/m3 (0) 6.0
 
Sept. 16, 2020, 3 a.m. 3.8 ppb (4) 1.7 ppb (2) N/A 2.0 ppb (2) N/A N/A 9.0 ppb (7) 0.16 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 16, 2020, 2 a.m. 4.6 ppb (4) 1.9 ppb (2) N/A 3.0 ppb (3) N/A N/A 12.0 ppb (9) 0.19 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 16, 2020, 1 a.m. 4.9 ppb (5) 1.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 19.0 ppb (15) 0.24 ppb (3) N/A 18.0 μg/m3 (63) 63.0
 
Sept. 16, 2020, midnight 4.6 ppb (4) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 20.0 ppb (15) 0.22 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 15, 2020, 11 p.m. 4.7 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 20.0 ppb (15) 0.23 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 15, 2020, 10 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 24.0 ppb (18) 0.23 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 15, 2020, 9 p.m. 6.0 ppb (6) 1.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 27.0 ppb (21) 0.26 ppb (3) N/A 13.0 μg/m3 (52) 52.0
 
Sept. 15, 2020, 8 p.m. 5.2 ppb (5) 1.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (22) 0.29 ppb (3) N/A 16.0 μg/m3 (59) 59.0
 
Sept. 15, 2020, 7 p.m. 4.3 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 24.0 ppb (18) 0.31 ppb (3) N/A 19.0 μg/m3 (65) 65.0
 
Sept. 15, 2020, 6 p.m. 8.4 ppb (8) 2.9 ppb (3) N/A 6.0 ppb (6) N/A N/A 20.0 ppb (15) 0.39 ppb (4) N/A 24.0 μg/m3 (76) 76.0
 
Sept. 15, 2020, 5 p.m. 8.2 ppb (8) 2.9 ppb (3) N/A 5.0 ppb (5) N/A N/A 17.0 ppb (13) 0.43 ppb (5) N/A 26.0 μg/m3 (80) 80.0
 
Sept. 15, 2020, 4 p.m. 8.1 ppb (8) 2.6 ppb (2) N/A 6.0 ppb (6) N/A N/A 15.0 ppb (12) 0.58 ppb (6) N/A 28.0 μg/m3 (84) 84.0
 
Sept. 15, 2020, 3 p.m. 26.8 ppb (25) 15.5 ppb (14) N/A 11.0 ppb (10) N/A N/A 5.0 ppb (4) 0.79 ppb (9) N/A 21.0 μg/m3 (69) 69.0
 
Sept. 15, 2020, 2 p.m. 31.8 ppb (29) 22.3 ppb (21) N/A 10.0 ppb (9) N/A N/A 0.0 ppb (0) 0.73 ppb (8) N/A 14.0 μg/m3 (54) 54.0
 
Sept. 15, 2020, 1 p.m. 17.3 ppb (16) 9.7 ppb (9) N/A 8.0 ppb (7) N/A N/A 1.0 ppb (1) 0.49 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 15, 2020, noon 5.8 ppb (5) 1.7 ppb (2) N/A 4.0 ppb (4) N/A N/A 3.0 ppb (2) 0.38 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 15, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
Sept. 15, 2020, 10 a.m. 6.2 ppb (6) 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A 8.0 ppb (6) 0.39 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 15, 2020, 9 a.m. 4.5 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 14.0 ppb (11) 0.37 ppb (4) N/A 14.0 μg/m3 (54) 54.0
 
Sept. 15, 2020, 8 a.m. 1.9 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 19.0 ppb (15) 0.39 ppb (4) N/A 22.0 μg/m3 (71) 71.0
 
Sept. 15, 2020, 7 a.m. 1.9 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 18.0 ppb (14) 0.38 ppb (4) N/A 18.0 μg/m3 (63) 63.0
 
Sept. 15, 2020, 6 a.m. 2.1 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A N/A 18.0 ppb (14) 0.36 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 15, 2020, 5 a.m. 2.3 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 18.0 ppb (14) 0.36 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 15, 2020, 4 a.m. 3.0 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 19.0 ppb (15) 0.37 ppb (4) N/A 23.0 μg/m3 (73) 73.0
 
Sept. 15, 2020, 3 a.m. 3.2 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 21.0 ppb (16) 0.42 ppb (5) N/A 22.0 μg/m3 (71) 71.0
 
Sept. 15, 2020, 2 a.m. 5.2 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (25) 0.7 ppb (8) N/A 64.0 μg/m3 (154) 154.0
 
Sept. 15, 2020, 1 a.m. 4.5 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (28) 1.07 ppb (12) N/A 96.0 μg/m3 (171) 171.0
 
Sept. 15, 2020, midnight 5.6 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 39.0 ppb (30) 1.16 ppb (13) N/A 101.0 μg/m3 (174) 174.0
 
Sept. 14, 2020, 11 p.m. 4.5 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (32) 1.18 ppb (13) N/A 101.0 μg/m3 (174) 174.0
 
Sept. 14, 2020, 10 p.m. 5.0 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (32) 1.2 ppb (13) N/A 103.0 μg/m3 (175) 175.0
 
Sept. 14, 2020, 9 p.m. 4.2 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (32) 1.19 ppb (13) N/A 100.0 μg/m3 (173) 173.0
 
Sept. 14, 2020, 8 p.m. 3.1 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (32) 1.19 ppb (13) N/A 102.0 μg/m3 (174) 174.0
 
Sept. 14, 2020, 7 p.m. 4.7 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 44.0 ppb (34) 1.24 ppb (14) N/A 107.0 μg/m3 (177) 177.0
 
Sept. 14, 2020, 6 p.m. 4.6 ppb (4) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 40.0 ppb (31) 1.28 ppb (14) N/A 98.0 μg/m3 (172) 172.0
 
Sept. 14, 2020, 5 p.m. 6.0 ppb (6) 1.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 37.0 ppb (28) 1.27 ppb (14) N/A 105.0 μg/m3 (176) 176.0
 
Sept. 14, 2020, 4 p.m. 6.1 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 33.0 ppb (25) 1.28 ppb (14) N/A 109.0 μg/m3 (178) 178.0
 
Sept. 14, 2020, 3 p.m. 7.7 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A N/A 31.0 ppb (24) 1.3 ppb (14) N/A 111.0 μg/m3 (179) 179.0
 
Sept. 14, 2020, 2 p.m. 8.1 ppb (8) 1.2 ppb (1) N/A 7.0 ppb (6) N/A N/A 30.0 ppb (23) 1.31 ppb (15) N/A 112.0 μg/m3 (180) 180.0
 
Sept. 14, 2020, 1 p.m. 5.6 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 32.0 ppb (25) 1.3 ppb (14) N/A 114.0 μg/m3 (181) 181.0
 
Sept. 14, 2020, noon 4.4 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (23) 1.34 ppb (15) N/A 121.0 μg/m3 (184) 184.0
 
Sept. 14, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 117.0 μg/m3 (182) 182.0
 
Sept. 14, 2020, 10 a.m. 4.8 ppb (4) 0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 15.0 ppb (12) 1.4 ppb (16) N/A 109.0 μg/m3 (178) 178.0
 
Sept. 14, 2020, 9 a.m. 2.9 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 16.0 ppb (12) 1.35 ppb (15) N/A 115.0 μg/m3 (181) 181.0
 
Sept. 14, 2020, 8 a.m. 3.1 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 18.0 ppb (14) 1.38 ppb (15) N/A 119.0 μg/m3 (183) 183.0
 
Sept. 14, 2020, 7 a.m. 3.9 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 21.0 ppb (16) 1.42 ppb (16) N/A 118.0 μg/m3 (183) 183.0
 
Sept. 14, 2020, 6 a.m. 3.1 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (20) 1.45 ppb (16) N/A 125.0 μg/m3 (187) 187.0
 
Sept. 14, 2020, 5 a.m. 2.9 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 30.0 ppb (23) 1.43 ppb (16) N/A 121.0 μg/m3 (184) 184.0
 
Sept. 14, 2020, 4 a.m. 3.3 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 31.0 ppb (24) 1.38 ppb (15) N/A 109.0 μg/m3 (178) 178.0
 
Sept. 14, 2020, 3 a.m. 5.7 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 29.0 ppb (22) 1.37 ppb (15) N/A 100.0 μg/m3 (173) 173.0
 
Sept. 14, 2020, 2 a.m. 5.1 ppb (5) 0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 29.0 ppb (22) 1.4 ppb (16) N/A 109.0 μg/m3 (178) 178.0
 
Sept. 14, 2020, 1 a.m. 4.0 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (25) 1.38 ppb (15) N/A 118.0 μg/m3 (183) 183.0
 
Sept. 14, 2020, midnight 4.4 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) 1.4 ppb (16) N/A 130.0 μg/m3 (189) 189.0
 
Sept. 13, 2020, 11 p.m. 3.9 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (28) 1.32 ppb (15) N/A 114.0 μg/m3 (181) 181.0
 
Sept. 13, 2020, 10 p.m. 2.8 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (31) 1.26 ppb (14) N/A 84.0 μg/m3 (165) 165.0
 
Sept. 13, 2020, 9 p.m. 2.7 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (33) 1.25 ppb (14) N/A 75.0 μg/m3 (160) 160.0
 
Sept. 13, 2020, 8 p.m. 3.0 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (31) 1.31 ppb (15) N/A 78.0 μg/m3 (162) 162.0
 
Sept. 13, 2020, 7 p.m. 2.9 ppb (3) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (29) 1.38 ppb (15) N/A 75.0 μg/m3 (160) 160.0
 
Sept. 13, 2020, 6 p.m. 2.4 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 31.0 ppb (24) 1.44 ppb (16) N/A 65.0 μg/m3 (155) 155.0
 
Sept. 13, 2020, 5 p.m. 3.6 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 21.0 ppb (16) 1.55 ppb (17) N/A 65.0 μg/m3 (155) 155.0
 
Sept. 13, 2020, 4 p.m. 3.1 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 16.0 ppb (12) 1.57 ppb (17) N/A 67.0 μg/m3 (156) 156.0
 
Sept. 13, 2020, 3 p.m. 7.1 ppb (7) 2.5 ppb (2) N/A 5.0 ppb (5) N/A N/A 7.0 ppb (5) 1.56 ppb (17) N/A 68.0 μg/m3 (157) 157.0
 
Sept. 13, 2020, 2 p.m. 7.4 ppb (7) 1.9 ppb (2) N/A 6.0 ppb (6) N/A N/A 3.0 ppb (2) 1.49 ppb (17) N/A 66.0 μg/m3 (156) 156.0
 
Sept. 13, 2020, 1 p.m. 4.3 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 5.0 ppb (4) 1.42 ppb (16) N/A 68.0 μg/m3 (157) 157.0
 
Sept. 13, 2020, noon 4.5 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 6.0 ppb (5) 1.4 ppb (16) N/A 69.0 μg/m3 (157) 157.0
 
Sept. 13, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 72.0 μg/m3 (159) 159.0
 
Sept. 13, 2020, 10 a.m. 2.6 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 13.0 ppb (10) 1.42 ppb (16) N/A 70.0 μg/m3 (158) 158.0
 
Sept. 13, 2020, 9 a.m. 1.9 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 17.0 ppb (13) 1.41 ppb (16) N/A 63.0 μg/m3 (154) 154.0
 
Sept. 13, 2020, 8 a.m. 2.2 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 18.0 ppb (14) 1.4 ppb (16) N/A 71.0 μg/m3 (158) 158.0
 
Sept. 13, 2020, 7 a.m. 2.4 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 20.0 ppb (15) 1.41 ppb (16) N/A 78.0 μg/m3 (162) 162.0
 
Sept. 13, 2020, 6 a.m. 3.2 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 19.0 ppb (15) 1.33 ppb (15) N/A 73.0 μg/m3 (159) 159.0
 
Sept. 13, 2020, 5 a.m. 6.6 ppb (6) 0.1 ppb (0) N/A 7.0 ppb (6) N/A N/A 16.0 ppb (12) 1.35 ppb (15) N/A 79.0 μg/m3 (162) 162.0
 
Sept. 13, 2020, 4 a.m. 9.2 ppb (9) 0.2 ppb (0) N/A 9.0 ppb (8) N/A N/A 17.0 ppb (13) 1.41 ppb (16) N/A 87.0 μg/m3 (167) 167.0
 
Sept. 13, 2020, 3 a.m. 6.1 ppb (6) 0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 24.0 ppb (18) 1.35 ppb (15) N/A 91.0 μg/m3 (169) 169.0
 
Sept. 13, 2020, 2 a.m. 12.4 ppb (11) 0.2 ppb (0) N/A 12.0 ppb (11) N/A N/A 27.0 ppb (21) 1.36 ppb (15) N/A 87.0 μg/m3 (167) 167.0
 
Sept. 13, 2020, 1 a.m. 6.9 ppb (6) 0.4 ppb (0) N/A 7.0 ppb (6) N/A N/A 31.0 ppb (24) 1.36 ppb (15) N/A 87.0 μg/m3 (167) 167.0
 
Sept. 13, 2020, midnight 5.8 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 40.0 ppb (31) 1.33 ppb (15) N/A 87.0 μg/m3 (167) 167.0
 
Sept. 12, 2020, 11 p.m. 10.0 ppb (9) 0.4 ppb (0) N/A 10.0 ppb (9) N/A N/A 69.0 ppb (53) 1.31 ppb (15) N/A 109.0 μg/m3 (178) 178.0
 
Sept. 12, 2020, 10 p.m. 12.2 ppb (11) 0.7 ppb (1) N/A 12.0 ppb (11) N/A N/A 66.0 ppb (51) 1.26 ppb (14) N/A 102.0 μg/m3 (174) 174.0
 
Sept. 12, 2020, 9 p.m. 10.3 ppb (10) 0.7 ppb (1) N/A 10.0 ppb (9) N/A N/A 59.0 ppb (45) 1.33 ppb (15) N/A 113.0 μg/m3 (180) 180.0
 
Sept. 12, 2020, 8 p.m. 12.3 ppb (11) 1.3 ppb (1) N/A 11.0 ppb (10) N/A N/A 47.0 ppb (36) 1.32 ppb (15) N/A 103.0 μg/m3 (175) 175.0
 
Sept. 12, 2020, 7 p.m. 15.0 ppb (14) 2.8 ppb (3) N/A 12.0 ppb (11) N/A N/A 32.0 ppb (25) 1.32 ppb (15) N/A 98.0 μg/m3 (172) 172.0
 
Sept. 12, 2020, 6 p.m. 16.3 ppb (15) 4.2 ppb (4) N/A 12.0 ppb (11) N/A N/A 20.0 ppb (15) 1.34 ppb (15) N/A 103.0 μg/m3 (175) 175.0
 
Sept. 12, 2020, 5 p.m. 13.8 ppb (13) 3.6 ppb (3) N/A 10.0 ppb (9) N/A N/A 16.0 ppb (12) 1.33 ppb (15) N/A 107.0 μg/m3 (177) 177.0
 
Sept. 12, 2020, 4 p.m. 16.0 ppb (15) 4.4 ppb (4) N/A 12.0 ppb (11) N/A N/A 12.0 ppb (9) 1.36 ppb (15) N/A 106.0 μg/m3 (177) 177.0
 
Sept. 12, 2020, 3 p.m. 28.0 ppb (26) 13.7 ppb (13) N/A 14.0 ppb (13) N/A N/A 4.0 ppb (3) 1.46 ppb (16) N/A 95.0 μg/m3 (171) 171.0
 
Sept. 12, 2020, 2 p.m. 19.1 ppb (18) 8.1 ppb (8) N/A 11.0 ppb (10) N/A N/A 1.0 ppb (1) 1.3 ppb (14) N/A 94.0 μg/m3 (170) 170.0
 
Sept. 12, 2020, 1 p.m. 14.3 ppb (13) 3.7 ppb (3) N/A 11.0 ppb (10) N/A N/A 3.0 ppb (2) 1.19 ppb (13) N/A 99.0 μg/m3 (173) 173.0
 
Sept. 12, 2020, noon 9.3 ppb (9) 0.9 ppb (1) N/A 8.0 ppb (7) N/A N/A 4.0 ppb (3) 1.09 ppb (12) N/A 95.0 μg/m3 (171) 171.0
 
Sept. 12, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 94.0 μg/m3 (170) 170.0
 
Sept. 12, 2020, 10 a.m. 7.9 ppb (7) 0.2 ppb (0) N/A 8.0 ppb (7) N/A N/A 10.0 ppb (8) 1.02 ppb (11) N/A 90.0 μg/m3 (168) 168.0
 
Sept. 12, 2020, 9 a.m. 8.3 ppb (8) 0.2 ppb (0) N/A 8.0 ppb (7) N/A N/A 12.0 ppb (9) 1.02 ppb (11) N/A 93.0 μg/m3 (170) 170.0
 
Sept. 12, 2020, 8 a.m. 9.5 ppb (9) 0.3 ppb (0) N/A 9.0 ppb (8) N/A N/A 12.0 ppb (9) 1.05 ppb (12) N/A 96.0 μg/m3 (171) 171.0
 
Sept. 12, 2020, 7 a.m. 10.5 ppb (10) 0.3 ppb (0) N/A 10.0 ppb (9) N/A N/A 12.0 ppb (9) 1.1 ppb (12) N/A 100.0 μg/m3 (173) 173.0
 
Sept. 12, 2020, 6 a.m. 10.5 ppb (10) 0.3 ppb (0) N/A 10.0 ppb (9) N/A N/A 15.0 ppb (12) 1.1 ppb (12) N/A 104.0 μg/m3 (176) 176.0
 
Sept. 12, 2020, 5 a.m. 13.0 ppb (12) 0.4 ppb (0) N/A 13.0 ppb (12) N/A N/A 14.0 ppb (11) 1.15 ppb (13) N/A 103.0 μg/m3 (175) 175.0
 
Sept. 12, 2020, 4 a.m. 13.1 ppb (12) 0.3 ppb (0) N/A 13.0 ppb (12) N/A N/A 16.0 ppb (12) 1.32 ppb (15) N/A 123.0 μg/m3 (186) 186.0
 
Sept. 12, 2020, 3 a.m. 14.2 ppb (13) 0.3 ppb (0) N/A 14.0 ppb (13) N/A N/A 19.0 ppb (15) 1.35 ppb (15) N/A 124.0 μg/m3 (186) 186.0
 
Sept. 12, 2020, 2 a.m. 12.1 ppb (11) 0.2 ppb (0) N/A 12.0 ppb (11) N/A N/A 29.0 ppb (22) 1.39 ppb (15) N/A 129.0 μg/m3 (189) 189.0
 
Sept. 12, 2020, 1 a.m. 9.4 ppb (9) 0.3 ppb (0) N/A 9.0 ppb (8) N/A N/A 41.0 ppb (32) 1.28 ppb (14) N/A 127.0 μg/m3 (188) 188.0
 
Sept. 12, 2020, midnight 7.7 ppb (7) 0.2 ppb (0) N/A 8.0 ppb (7) N/A N/A 51.0 ppb (39) 1.15 ppb (13) N/A 119.0 μg/m3 (183) 183.0
 
Sept. 11, 2020, 11 p.m. 8.6 ppb (8) 0.4 ppb (0) N/A 8.0 ppb (7) N/A N/A 53.0 ppb (41) 1.08 ppb (12) N/A 113.0 μg/m3 (180) 180.0
 
Sept. 11, 2020, 10 p.m. 7.7 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A N/A 51.0 ppb (39) 1.02 ppb (11) N/A 111.0 μg/m3 (179) 179.0
 
Sept. 11, 2020, 9 p.m. 10.5 ppb (10) 1.0 ppb (1) N/A 10.0 ppb (9) N/A N/A 45.0 ppb (35) 1.26 ppb (14) N/A 154.0 μg/m3 (204) 204.0
 
Sept. 11, 2020, 8 p.m. 9.7 ppb (9) 1.1 ppb (1) N/A 9.0 ppb (8) N/A N/A 41.0 ppb (32) 1.39 ppb (15) N/A 165.0 μg/m3 (214) 214.0
 
Sept. 11, 2020, 7 p.m. 9.1 ppb (8) 1.4 ppb (1) N/A 8.0 ppb (7) N/A N/A 31.0 ppb (24) 1.56 ppb (17) N/A 185.0 μg/m3 (234) 234.0
 
Sept. 11, 2020, 6 p.m. 9.9 ppb (9) 2.0 ppb (2) N/A 8.0 ppb (7) N/A N/A 24.0 ppb (18) 1.54 ppb (17) N/A 185.0 μg/m3 (234) 234.0
 
Sept. 11, 2020, 5 p.m. 9.3 ppb (9) 2.0 ppb (2) N/A 7.0 ppb (6) N/A N/A 17.0 ppb (13) 1.52 ppb (17) N/A 187.0 μg/m3 (236) 236.0
 
Sept. 11, 2020, 4 p.m. 10.7 ppb (10) 2.2 ppb (2) N/A 8.0 ppb (7) N/A N/A 11.0 ppb (8) 1.53 ppb (17) N/A 177.0 μg/m3 (226) 226.0
 
Sept. 11, 2020, 3 p.m. 16.1 ppb (15) 4.8 ppb (4) N/A 11.0 ppb (10) N/A N/A 6.0 ppb (5) 1.58 ppb (18) N/A 176.0 μg/m3 (226) 226.0
 
Sept. 11, 2020, 2 p.m. 27.9 ppb (26) 14.5 ppb (13) N/A 13.0 ppb (12) N/A N/A 1.0 ppb (1) 1.71 ppb (19) N/A 178.0 μg/m3 (228) 228.0
 
Sept. 11, 2020, 1 p.m. 18.7 ppb (17) 6.8 ppb (6) N/A 12.0 ppb (11) N/A N/A 5.0 ppb (4) 1.62 ppb (18) N/A 179.0 μg/m3 (228) 228.0
 
Sept. 11, 2020, noon 13.8 ppb (13) 3.2 ppb (3) N/A 11.0 ppb (10) N/A N/A 3.0 ppb (2) 1.63 ppb (18) N/A 199.0 μg/m3 (248) 248.0