AQSQID: 060792004

Site Name: Mesa 2 /Nipomo

Location: San Luis Obispo Co, CA

Reporting: True, Located: True

Current AQI: 46.0

San Luis Obispo Co CA, US: 35.02079, -120.56389

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 21, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 23.0 μg/m3 (21) 11.0 μg/m3 (46) 46.0
 
Sept. 21, 2019, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 34.0 μg/m3 (31) 10.0 μg/m3 (42) 42.0
 
Sept. 21, 2019, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 38.0 μg/m3 (35) 13.0 μg/m3 (52) 52.0
 
Sept. 21, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 36.0 μg/m3 (33) 8.0 μg/m3 (33) 33.0
 
Sept. 21, 2019, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 29.0 μg/m3 (26) 6.0 μg/m3 (25) 26.0
 
Sept. 21, 2019, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 20.0 μg/m3 (18) 4.0 μg/m3 (17) 18.0
 
Sept. 21, 2019, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 48.0 μg/m3 (44) 4.0 μg/m3 (17) 44.0
 
Sept. 21, 2019, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 27.0 μg/m3 (25) 6.0 μg/m3 (25) 25.0
 
Sept. 21, 2019, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 45.0 μg/m3 (41) 12.0 μg/m3 (50) 50.0
 
Sept. 20, 2019, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 68.0 μg/m3 (56) 15.0 μg/m3 (56) 56.0
 
Sept. 20, 2019, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 72.0 μg/m3 (58) 16.0 μg/m3 (59) 59.0
 
Sept. 20, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 54.0 μg/m3 (49) 15.0 μg/m3 (56) 56.0
 
Sept. 20, 2019, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 61.0 μg/m3 (53) 12.0 μg/m3 (50) 53.0
 
Sept. 20, 2019, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 47.0 μg/m3 (43) 8.0 μg/m3 (33) 43.0
 
Sept. 20, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A 1.0
 
Sept. 20, 2019, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 19.0 μg/m3 (17) 5.0 μg/m3 (21) 21.0
 
Sept. 20, 2019, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 35.0 μg/m3 (32) 6.0 μg/m3 (25) 32.0
 
Sept. 20, 2019, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 29.0 μg/m3 (26) 8.0 μg/m3 (33) 33.0
 
Sept. 20, 2019, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 47.0 μg/m3 (43) 10.0 μg/m3 (42) 43.0
 
Sept. 20, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 19.0 μg/m3 (17) 3.0 μg/m3 (12) 17.0
 
Sept. 20, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 5.0 μg/m3 (21) 21.0
 
Sept. 20, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 18.0 μg/m3 (16) 6.0 μg/m3 (25) 25.0
 
Sept. 20, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 19.0 μg/m3 (17) 3.0 μg/m3 (12) 17.0
 
Sept. 20, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 21.0 μg/m3 (19) 3.0 μg/m3 (12) 19.0
 
Sept. 20, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 18.0 μg/m3 (16) 5.0 μg/m3 (21) 21.0
 
Sept. 20, 2019, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 17.0 μg/m3 (15) 7.0 μg/m3 (29) 29.0
 
Sept. 20, 2019, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 21.0 μg/m3 (19) 4.0 μg/m3 (17) 19.0
 
Sept. 20, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 22.0 μg/m3 (20) 5.0 μg/m3 (21) 21.0
 
Sept. 20, 2019, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 23.0 μg/m3 (21) 5.0 μg/m3 (21) 21.0
 
Sept. 20, 2019, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 19.0 μg/m3 (17) 2.0 μg/m3 (8) 17.0
 
Sept. 20, 2019, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 27.0 μg/m3 (25) 3.0 μg/m3 (12) 25.0
 
Sept. 20, 2019, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 82.0 μg/m3 (64) 18.0 μg/m3 (63) 64.0
 
Sept. 20, 2019, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 157.0 μg/m3 (101) 32.0 μg/m3 (93) 101.0
 
Sept. 19, 2019, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 251.0 μg/m3 (148) 54.0 μg/m3 (146) 148.0
 
Sept. 19, 2019, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 247.0 μg/m3 (146) 46.0 μg/m3 (126) 146.0
 
Sept. 19, 2019, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 255.0 μg/m3 (150) 52.0 μg/m3 (141) 150.0
 
Sept. 19, 2019, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 163.0 μg/m3 (104) 36.0 μg/m3 (101) 104.0
 
Sept. 19, 2019, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 47.0 μg/m3 (43) 12.0 μg/m3 (50) 50.0
 
Sept. 19, 2019, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 10.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
Sept. 19, 2019, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 8.0 μg/m3 (7) 2.0 μg/m3 (8) 8.0
 
Sept. 19, 2019, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 14.0 μg/m3 (13) 2.0 μg/m3 (8) 13.0
 
Sept. 19, 2019, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 12.0 μg/m3 (11) 0.0 μg/m3 (0) 11.0
 
Sept. 19, 2019, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 9.0 μg/m3 (8) 2.0 μg/m3 (8) 8.0
 
Sept. 19, 2019, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 9.0 μg/m3 (8) 3.0 μg/m3 (12) 12.0
 
Sept. 19, 2019, 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
 
Sept. 19, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 10.0 μg/m3 (9) 5.0 μg/m3 (21) 21.0
 
Sept. 19, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 12.0 μg/m3 (11) 3.0 μg/m3 (12) 12.0
 
Sept. 19, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 13.0 μg/m3 (12) 2.0 μg/m3 (8) 12.0
 
Sept. 19, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 11.0 μg/m3 (10) 2.0 μg/m3 (8) 10.0
 
Sept. 19, 2019, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 12.0 μg/m3 (11) 2.0 μg/m3 (8) 11.0
 
Sept. 19, 2019, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 9.0 μg/m3 (8) 4.0 μg/m3 (17) 17.0
 
Sept. 19, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 8.0 μg/m3 (7) 5.0 μg/m3 (21) 21.0
 
Sept. 19, 2019, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 11.0 μg/m3 (10) 2.0 μg/m3 (8) 10.0
 
Sept. 19, 2019, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 14.0 μg/m3 (13) 3.0 μg/m3 (12) 13.0
 
Sept. 19, 2019, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 22.0 μg/m3 (20) 4.0 μg/m3 (17) 20.0
 
Sept. 19, 2019, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 20.0 μg/m3 (18) 7.0 μg/m3 (29) 29.0
 
Sept. 19, 2019, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 55.0 μg/m3 (50) 10.0 μg/m3 (42) 50.0
 
Sept. 18, 2019, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 119.0 μg/m3 (82) 24.0 μg/m3 (76) 82.0
 
Sept. 18, 2019, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 110.0 μg/m3 (78) 21.0 μg/m3 (69) 78.0
 
Sept. 18, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 30.0 μg/m3 (27) 5.0 μg/m3 (21) 27.0
 
Sept. 18, 2019, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 20.0 μg/m3 (18) 1.0 μg/m3 (4) 18.0
 
Sept. 18, 2019, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 25.0 μg/m3 (23) 5.0 μg/m3 (21) 23.0
 
Sept. 18, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 32.0 μg/m3 (29) 8.0 μg/m3 (33) 33.0
 
Sept. 18, 2019, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 34.0 μg/m3 (31) 9.0 μg/m3 (38) 38.0
 
Sept. 18, 2019, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 45.0 μg/m3 (41) 7.0 μg/m3 (29) 41.0
 
Sept. 18, 2019, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 36.0 μg/m3 (33) 15.0 μg/m3 (56) 56.0
 
Sept. 18, 2019, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 61.0 μg/m3 (53) 8.0 μg/m3 (33) 53.0
 
Sept. 18, 2019, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 34.0 μg/m3 (31) 7.0 μg/m3 (29) 31.0
 
Sept. 18, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (25) 5.0 μg/m3 (21) 25.0
 
Sept. 18, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 28.0 μg/m3 (25) 2.0 μg/m3 (8) 25.0
 
Sept. 18, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 23.0 μg/m3 (21) 2.0 μg/m3 (8) 21.0
 
Sept. 18, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 27.0 μg/m3 (25) 4.0 μg/m3 (17) 25.0
 
Sept. 18, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 25.0 μg/m3 (23) 5.0 μg/m3 (21) 23.0
 
Sept. 18, 2019, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 27.0 μg/m3 (25) 4.0 μg/m3 (17) 25.0
 
Sept. 18, 2019, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 32.0 μg/m3 (29) 6.0 μg/m3 (25) 29.0
 
Sept. 18, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 27.0 μg/m3 (25) 8.0 μg/m3 (33) 33.0
 
Sept. 18, 2019, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 40.0 μg/m3 (36) 3.0 μg/m3 (12) 36.0
 
Sept. 18, 2019, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 39.0 μg/m3 (35) 3.0 μg/m3 (12) 35.0
 
Sept. 18, 2019, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 36.0 μg/m3 (33) 4.0 μg/m3 (17) 33.0
 
Sept. 18, 2019, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 33.0 μg/m3 (30) 6.0 μg/m3 (25) 30.0
 
Sept. 18, 2019, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 56.0 μg/m3 (50) 11.0 μg/m3 (46) 50.0
 
Sept. 17, 2019, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 187.0 μg/m3 (116) 45.0 μg/m3 (124) 124.0
 
Sept. 17, 2019, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 323.0 μg/m3 (184) 68.0 μg/m3 (157) 184.0
 
Sept. 17, 2019, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 253.0 μg/m3 (149) 51.0 μg/m3 (139) 149.0
 
Sept. 17, 2019, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 103.0 μg/m3 (74) 22.0 μg/m3 (71) 74.0
 
Sept. 17, 2019, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 65.0 μg/m3 (55) 13.0 μg/m3 (52) 55.0
 
Sept. 17, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 21.0 μg/m3 (19) 0.0 μg/m3 (0) 19.0
 
Sept. 17, 2019, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 27.0 μg/m3 (25) 3.0 μg/m3 (12) 25.0
 
Sept. 17, 2019, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 25.0 μg/m3 (23) 6.0 μg/m3 (25) 25.0
 
Sept. 17, 2019, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 27.0 μg/m3 (25) 7.0 μg/m3 (29) 29.0
 
Sept. 17, 2019, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 26.0 μg/m3 (24) 6.0 μg/m3 (25) 25.0
 
Sept. 17, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 18.0 μg/m3 (16) 5.0 μg/m3 (21) 21.0
 
Sept. 17, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 4.0 μg/m3 (17) 17.0
 
Sept. 17, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 17.0 μg/m3 (15) 5.0 μg/m3 (21) 21.0
 
Sept. 17, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 17.0 μg/m3 (15) 2.0 μg/m3 (8) 15.0
 
Sept. 17, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 16.0 μg/m3 (15) 3.0 μg/m3 (12) 15.0
 
Sept. 17, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 22.0 μg/m3 (20) 3.0 μg/m3 (12) 20.0
 
Sept. 17, 2019, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 16.0 μg/m3 (15) 2.0 μg/m3 (8) 15.0
 
Sept. 17, 2019, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 17.0 μg/m3 (15) 3.0 μg/m3 (12) 15.0
 
Sept. 17, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 20.0 μg/m3 (18) 3.0 μg/m3 (12) 18.0
 
Sept. 17, 2019, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 25.0 μg/m3 (23) 2.0 μg/m3 (8) 23.0
 
Sept. 17, 2019, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 18.0 μg/m3 (16) 2.0 μg/m3 (8) 16.0
 
Sept. 17, 2019, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 19.0 μg/m3 (17) 6.0 μg/m3 (25) 25.0
 
Sept. 17, 2019, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 53.0 μg/m3 (48) 11.0 μg/m3 (46) 48.0
 
Sept. 17, 2019, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 123.0 μg/m3 (84) 19.0 μg/m3 (65) 84.0
 
Sept. 16, 2019, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 24.0 μg/m3 (22) 1.0 μg/m3 (4) 22.0
 
Sept. 16, 2019, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 3.0 μg/m3 (3) 3.0 μg/m3 (12) 12.0
 
Sept. 16, 2019, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 5.0 μg/m3 (5) 3.0 μg/m3 (12) 12.0
 
Sept. 16, 2019, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 4.0 μg/m3 (4) 0.0 μg/m3 (0) 4.0
 
Sept. 16, 2019, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 18.0 μg/m3 (16) 3.0 μg/m3 (12) 16.0
 
Sept. 16, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 19.0 μg/m3 (17) 4.0 μg/m3 (17) 17.0
 
Sept. 16, 2019, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 16.0 μg/m3 (15) 3.0 μg/m3 (12) 15.0
 
Sept. 16, 2019, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 15.0 μg/m3 (14) 2.0 μg/m3 (8) 14.0
 
Sept. 16, 2019, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 19.0 μg/m3 (17) 3.0 μg/m3 (12) 17.0
 
Sept. 16, 2019, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 12.0 μg/m3 (11) 3.0 μg/m3 (12) 12.0
 
Sept. 16, 2019, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 10.0 μg/m3 (9) 3.0 μg/m3 (12) 12.0
 
Sept. 16, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 5.0 μg/m3 (21) 21.0
 
Sept. 16, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 11.0 μg/m3 (10) 2.0 μg/m3 (8) 10.0
 
Sept. 16, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 10.0 μg/m3 (9) 0.0 μg/m3 (0) 9.0
 
Sept. 16, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 16.0 μg/m3 (15) 2.0 μg/m3 (8) 15.0
 
Sept. 16, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 12.0 μg/m3 (11) 4.0 μg/m3 (17) 17.0
 
Sept. 16, 2019, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 10.0 μg/m3 (9) 0.0 μg/m3 (0) 9.0
 
Sept. 16, 2019, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 13.0 μg/m3 (12) 0.0 μg/m3 (0) 12.0
 
Sept. 16, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 16.0 μg/m3 (15) 4.0 μg/m3 (17) 17.0
 
Sept. 16, 2019, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 13.0 μg/m3 (12) 2.0 μg/m3 (8) 12.0
 
Sept. 16, 2019, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 13.0 μg/m3 (12) 1.0 μg/m3 (4) 12.0
 
Sept. 16, 2019, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 13.0 μg/m3 (12) 2.0 μg/m3 (8) 12.0
 
Sept. 16, 2019, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 14.0 μg/m3 (13) 4.0 μg/m3 (17) 17.0
 
Sept. 16, 2019, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 13.0 μg/m3 (12) 5.0 μg/m3 (21) 21.0
 
Sept. 15, 2019, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 16.0 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
Sept. 15, 2019, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 8.0 μg/m3 (7) 8.0 μg/m3 (33) 33.0
 
Sept. 15, 2019, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 28.0 μg/m3 (25) 5.0 μg/m3 (21) 25.0
 
Sept. 15, 2019, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 8.0 μg/m3 (7) 3.0 μg/m3 (12) 12.0
 
Sept. 15, 2019, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 10.0 μg/m3 (9) 3.0 μg/m3 (12) 12.0
 
Sept. 15, 2019, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 6.0 μg/m3 (5) 3.0 μg/m3 (12) 12.0
 
Sept. 15, 2019, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 9.0 μg/m3 (8) 3.0 μg/m3 (12) 12.0
 
Sept. 15, 2019, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 7.0 μg/m3 (6) 0.0 μg/m3 (0) 6.0
 
Sept. 15, 2019, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 4.0 μg/m3 (4) 0.0 μg/m3 (0) 4.0
 
Sept. 15, 2019, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 4.0 μg/m3 (4) 2.0 μg/m3 (8) 8.0
 
Sept. 15, 2019, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 5.0 μg/m3 (5) 1.0 μg/m3 (4) 5.0
 
Sept. 15, 2019, noon 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
 
Sept. 15, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 3.0 μg/m3 (3) 2.0 μg/m3 (8) 8.0
 
Sept. 15, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 6.0 μg/m3 (5) 3.0 μg/m3 (12) 12.0
 
Sept. 15, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 9.0 μg/m3 (8) 3.0 μg/m3 (12) 12.0
 
Sept. 15, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 11.0 μg/m3 (10) 4.0 μg/m3 (17) 17.0
 
Sept. 15, 2019, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 6.0 μg/m3 (5) 5.0 μg/m3 (21) 21.0
 
Sept. 15, 2019, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 3.0 μg/m3 (3) 3.0 μg/m3 (12) 12.0
 
Sept. 15, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 2.0 μg/m3 (2) 2.0 μg/m3 (8) 8.0
 
Sept. 15, 2019, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 3.0 μg/m3 (3) 3.0 μg/m3 (12) 12.0
 
Sept. 15, 2019, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 17.0 μg/m3 (15) 5.0 μg/m3 (21) 21.0
 
Sept. 15, 2019, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 13.0 μg/m3 (12) 4.0 μg/m3 (17) 17.0
 
Sept. 15, 2019, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 15.0 μg/m3 (14) 3.0 μg/m3 (12) 14.0
 
Sept. 15, 2019, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 22.0 μg/m3 (20) 5.0 μg/m3 (21) 21.0
 
Sept. 14, 2019, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 22.0 μg/m3 (20) 7.0 μg/m3 (29) 29.0
 
Sept. 14, 2019, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 31.0 μg/m3 (28) 11.0 μg/m3 (46) 46.0
 
Sept. 14, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 38.0 μg/m3 (35) 11.0 μg/m3 (46) 46.0
 
Sept. 14, 2019, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 40.0 μg/m3 (36) 9.0 μg/m3 (38) 38.0
 
Sept. 14, 2019, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 39.0 μg/m3 (35) 10.0 μg/m3 (42) 42.0
 
Sept. 14, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 41.0 μg/m3 (37) 10.0 μg/m3 (42) 42.0
 
Sept. 14, 2019, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 60.0 μg/m3 (52) 8.0 μg/m3 (33) 52.0
 
Sept. 14, 2019, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 59.0 μg/m3 (52) 10.0 μg/m3 (42) 52.0
 
Sept. 14, 2019, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 64.0 μg/m3 (54) 8.0 μg/m3 (33) 54.0
 
Sept. 14, 2019, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 90.0 μg/m3 (68) 8.0 μg/m3 (33) 68.0
 
Sept. 14, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 37.0 μg/m3 (34) 5.0 μg/m3 (21) 34.0
 
Sept. 14, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (31) 5.0 μg/m3 (21) 31.0
 
Sept. 14, 2019, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 34.0 μg/m3 (31) 7.0 μg/m3 (29) 31.0
 
Sept. 14, 2019, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 30.0 μg/m3 (27) 7.0 μg/m3 (29) 29.0
 
Sept. 14, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 34.0 μg/m3 (31) 9.0 μg/m3 (38) 38.0