ID: 1012

AQSQID: 370810013

Site Name: Mendnhal

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

Updated: July 31, 2021, 4:55 a.m.

Location: Greensboro (Kirkwood), NC

Reporting: True, Located: True

Current AQI: 42.0

Greensboro (Kirkwood) NC, US: 36.109006, -79.802314

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 24, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 25.0 μg/m3 (24) 23.0 μg/m3 (74) 74.0
 
July 24, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 26.0 μg/m3 (25) 15.0 μg/m3 (58) 58.0
 
July 24, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 21.0 μg/m3 (20) 19.0 μg/m3 (66) 66.0
 
July 24, 2021, midnight N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 22.0 μg/m3 (21) 17.0 μg/m3 (62) 62.0
 
July 23, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 23.0 μg/m3 (22) 18.0 μg/m3 (64) 64.0
 
July 23, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 28.0 μg/m3 (26) 12.0 μg/m3 (50) 50.0
 
July 23, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A 25.0 μg/m3 (24) 23.0 μg/m3 (74) 74.0
 
July 23, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A 27.0 μg/m3 (25) 14.0 μg/m3 (55) 65.0
 
July 23, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A 24.0 μg/m3 (23) 24.0 μg/m3 (77) 77.0
 
July 23, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A 22.0 μg/m3 (21) 17.0 μg/m3 (62) 74.0
 
July 23, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A 24.0 μg/m3 (23) 19.0 μg/m3 (66) 66.0
 
July 23, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A 20.0 μg/m3 (19) 18.0 μg/m3 (64) 64.0
 
July 23, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 24.0 μg/m3 (23) 19.0 μg/m3 (66) 66.0
 
July 23, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 23.0 μg/m3 (22) 10.0 μg/m3 (42) 42.0
 
July 23, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 22.0 μg/m3 (21) 16.0 μg/m3 (60) 60.0
 
July 23, 2021, noon N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 22.0 μg/m3 (21) 17.0 μg/m3 (62) 62.0
 
July 23, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) N/A 22.0 μg/m3 (21) 18.0 μg/m3 (64) 64.0
 
July 23, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 22.0 μg/m3 (21) 18.0 μg/m3 (64) 64.0
 
July 23, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A 24.0 μg/m3 (23) 16.0 μg/m3 (60) 60.0
 
July 23, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (19) 20.0 μg/m3 (68) 68.0
 
July 23, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) N/A 16.0 μg/m3 (15) N/A 15.0
 
July 23, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A 20.0 μg/m3 (19) 18.0 μg/m3 (64) 64.0
 
July 23, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A 24.0 μg/m3 (23) 22.0 μg/m3 (72) 72.0
 
July 23, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A 18.0 μg/m3 (17) 21.0 μg/m3 (70) 70.0
 
July 23, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A 20.0 μg/m3 (19) 22.0 μg/m3 (72) 72.0
 
July 23, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 12.0 μg/m3 (12) 15.0 μg/m3 (58) 58.0
 
July 23, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 20.0 μg/m3 (19) 18.0 μg/m3 (64) 64.0
 
July 23, 2021, midnight N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 22.0 μg/m3 (21) 12.0 μg/m3 (50) 50.0
 
July 22, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 16.0 μg/m3 (15) 12.0 μg/m3 (50) 50.0
 
July 22, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A 19.0 μg/m3 (18) 14.0 μg/m3 (55) 55.0
 
July 22, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A 22.0 μg/m3 (21) 13.0 μg/m3 (53) 53.0
 
July 22, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A 21.0 μg/m3 (20) 15.0 μg/m3 (58) 58.0
 
July 22, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 20.0 μg/m3 (19) 22.0 μg/m3 (72) 72.0
 
July 22, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 16.0 μg/m3 (15) 16.0 μg/m3 (60) 60.0
 
July 22, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 23.0 μg/m3 (22) 18.0 μg/m3 (64) 64.0
 
July 22, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 24.0 μg/m3 (23) 20.0 μg/m3 (68) 68.0
 
July 22, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 26.0 μg/m3 (25) 17.0 μg/m3 (62) 62.0
 
July 22, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 26.0 μg/m3 (25) 22.0 μg/m3 (72) 72.0
 
July 22, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 28.0 μg/m3 (26) 21.0 μg/m3 (70) 70.0
 
July 22, 2021, noon N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 29.0 μg/m3 (27) 22.0 μg/m3 (72) 72.0
 
July 22, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 31.0 μg/m3 (29) 25.0 μg/m3 (79) 79.0
 
July 22, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 34.0 μg/m3 (32) 29.0 μg/m3 (87) 87.0
 
July 22, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 35.0 μg/m3 (33) 30.0 μg/m3 (89) 89.0
 
July 22, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 37.0 μg/m3 (35) 32.0 μg/m3 (93) 93.0
 
July 22, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 38.0 μg/m3 (36) 33.0 μg/m3 (95) 95.0
 
July 22, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 44.0 μg/m3 (41) 35.0 μg/m3 (100) 100.0
 
July 22, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 44.0 μg/m3 (41) 41.0 μg/m3 (115) 115.0
 
July 22, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 50.0 μg/m3 (47) 42.0 μg/m3 (118) 118.0
 
July 22, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 45.0 μg/m3 (42) 39.0 μg/m3 (110) 110.0
 
July 22, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 42.0 μg/m3 (39) 43.0 μg/m3 (120) 120.0
 
July 22, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 45.0 μg/m3 (42) 42.0 μg/m3 (118) 118.0
 
July 22, 2021, midnight N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 46.0 μg/m3 (43) 37.0 μg/m3 (105) 105.0
 
July 21, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A 49.0 μg/m3 (46) 38.0 μg/m3 (108) 108.0
 
July 21, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A 44.0 μg/m3 (41) 38.0 μg/m3 (108) 108.0
 
July 21, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A 43.0 μg/m3 (40) 40.0 μg/m3 (113) 113.0
 
July 21, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A 39.0 μg/m3 (37) 36.0 μg/m3 (103) 103.0
 
July 21, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A 37.0 μg/m3 (35) 36.0 μg/m3 (103) 103.0
 
July 21, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A 42.0 μg/m3 (39) 32.0 μg/m3 (93) 93.0
 
July 21, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A 38.0 μg/m3 (36) 36.0 μg/m3 (103) 103.0
 
July 21, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 37.0 μg/m3 (35) 34.0 μg/m3 (98) 98.0
 
July 21, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 35.0 μg/m3 (33) 33.0 μg/m3 (95) 95.0
 
July 21, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 36.0 μg/m3 (34) 33.0 μg/m3 (95) 95.0
 
July 21, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 31.0 μg/m3 (29) 32.0 μg/m3 (93) 93.0
 
July 21, 2021, noon N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A 31.0 μg/m3 (29) 26.0 μg/m3 (81) 81.0
 
July 21, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) N/A 28.0 μg/m3 (26) 25.0 μg/m3 (79) 79.0
 
July 21, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) N/A 27.0 μg/m3 (25) 29.0 μg/m3 (87) 87.0
 
July 21, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) N/A 36.0 μg/m3 (34) 26.0 μg/m3 (81) 81.0
 
July 21, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (26) 27.0 μg/m3 (83) 83.0
 
July 21, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) N/A 36.0 μg/m3 (34) 24.0 μg/m3 (77) 77.0
 
July 21, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A 36.0 μg/m3 (34) 29.0 μg/m3 (87) 87.0
 
July 21, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A 37.0 μg/m3 (35) 28.0 μg/m3 (85) 85.0
 
July 21, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A 29.0 μg/m3 (27) 27.0 μg/m3 (83) 83.0
 
July 21, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A 35.0 μg/m3 (33) 26.0 μg/m3 (81) 81.0
 
July 21, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 33.0 μg/m3 (31) 29.0 μg/m3 (87) 87.0
 
July 21, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 32.0 μg/m3 (30) 29.0 μg/m3 (87) 87.0
 
July 21, 2021, midnight N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 33.0 μg/m3 (31) 26.0 μg/m3 (81) 81.0
 
July 20, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 37.0 μg/m3 (35) 31.0 μg/m3 (91) 91.0
 
July 20, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 34.0 μg/m3 (32) 30.0 μg/m3 (89) 89.0
 
July 20, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 35.0 μg/m3 (33) 28.0 μg/m3 (85) 85.0
 
July 20, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 33.0 μg/m3 (31) 27.0 μg/m3 (83) 83.0
 
July 20, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 29.0 μg/m3 (27) 27.0 μg/m3 (83) 83.0
 
July 20, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 30.0 μg/m3 (28) 30.0 μg/m3 (89) 89.0
 
July 20, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 23.0 μg/m3 (22) 29.0 μg/m3 (87) 87.0
 
July 20, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 22.0 μg/m3 (21) 27.0 μg/m3 (83) 83.0
 
July 20, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 20.0 μg/m3 (19) 19.0 μg/m3 (66) 66.0
 
July 20, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 21.0 μg/m3 (20) 17.0 μg/m3 (62) 62.0
 
July 20, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A 21.0 μg/m3 (20) 17.0 μg/m3 (62) 62.0
 
July 20, 2021, noon N/A N/A N/A N/A N/A N/A 4.0 ppb (4) N/A 22.0 μg/m3 (21) 12.0 μg/m3 (50) 50.0
 
July 20, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 16.0 μg/m3 (15) 16.0 μg/m3 (60) 60.0
 
July 20, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 22.0 μg/m3 (21) 13.0 μg/m3 (53) 53.0
 
July 20, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 19.0 μg/m3 (18) 10.0 μg/m3 (42) 42.0
 
July 20, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (24) 13.0 μg/m3 (53) 53.0
 
July 20, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A 20.0 μg/m3 (19) 12.0 μg/m3 (50) 50.0
 
July 20, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) N/A 19.0 μg/m3 (18) 12.0 μg/m3 (50) 50.0
 
July 20, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) N/A 16.0 μg/m3 (15) 13.0 μg/m3 (53) 53.0
 
July 20, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A 18.0 μg/m3 (17) 11.0 μg/m3 (46) 46.0
 
July 20, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 25.0 μg/m3 (24) 12.0 μg/m3 (50) 50.0
 
July 20, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 17.0 μg/m3 (16) 17.0 μg/m3 (62) 62.0
 
July 20, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 13.0 μg/m3 (13) 17.0 μg/m3 (62) 62.0
 
July 20, 2021, midnight N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 9.0 μg/m3 (9) 13.0 μg/m3 (53) 53.0
 
July 19, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 11.0 μg/m3 (11) 10.0 μg/m3 (42) 42.0
 
July 19, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 8.0 μg/m3 (8) 13.0 μg/m3 (53) 53.0
 
July 19, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 5.0 μg/m3 (5) 6.0 μg/m3 (25) 38.0
 
July 19, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 3.0 μg/m3 (3) 0.0 μg/m3 (0) 38.0
 
July 19, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 1.0 μg/m3 (1) 7.0 μg/m3 (30) 34.0
 
July 19, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A -1.0 μg/m3 (0) 5.0 μg/m3 (21) 30.0
 
July 19, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 4.0 μg/m3 (17) 17.0
 
July 19, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A -1.0 μg/m3 (0) 6.0 μg/m3 (25) 25.0
 
July 19, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A -1.0 μg/m3 (0) 0.0 μg/m3 (0) 0.0
July 19, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 1.0 μg/m3 (1) 0.0 μg/m3 (0) 23.0
 
July 19, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 2.0 μg/m3 (2) -3.0 μg/m3 (0) 22.0
 
July 19, 2021, noon N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 3.0 μg/m3 (3) 0.0 μg/m3 (0) 21.0
 
July 19, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 4.0 μg/m3 (4) 7.0 μg/m3 (30) 30.0
 
July 19, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 6.0 μg/m3 (6) 2.0 μg/m3 (9) 17.0
 
July 19, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A 6.0 μg/m3 (6) 3.0 μg/m3 (13) 13.0
 
July 19, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (6) 4.0 μg/m3 (17) 17.0
 
July 19, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A 5.0 μg/m3 (5) 4.0 μg/m3 (17) 17.0
 
July 19, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A 6.0 μg/m3 (6) 1.0 μg/m3 (5) 18.0
 
July 19, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 6.0 μg/m3 (6) 4.0 μg/m3 (17) 19.0
 
July 19, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A 9.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
July 19, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A 13.0 μg/m3 (13) 2.0 μg/m3 (9) 18.0
 
July 19, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 6.0 μg/m3 (6) 5.0 μg/m3 (21) 21.0
 
July 19, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 7.0 μg/m3 (7) 4.0 μg/m3 (17) 20.0
 
July 19, 2021, midnight N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 6.0 μg/m3 (6) 3.0 μg/m3 (13) 21.0
 
July 18, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 6.0 μg/m3 (6) -2.0 μg/m3 (0) 33.0
 
July 18, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 7.0 μg/m3 (7) -4.0 μg/m3 (0) 39.0
 
July 18, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 2.0 μg/m3 (2) 12.0 μg/m3 (50) 50.0
 
July 18, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 4.0 μg/m3 (4) 9.0 μg/m3 (38) 38.0
 
July 18, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 4.0 μg/m3 (4) 3.0 μg/m3 (13) 26.0
 
July 18, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 15.0 μg/m3 (14) N/A 28.0
 
July 18, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 7.0 μg/m3 (7) 18.0 μg/m3 (64) 64.0
 
July 18, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 8.0 μg/m3 (8) 10.0 μg/m3 (42) 42.0
 
July 18, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 6.0 μg/m3 (6) 8.0 μg/m3 (34) 34.0
 
July 18, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A 7.0 μg/m3 (7) 9.0 μg/m3 (38) 38.0
 
July 18, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A 8.0 μg/m3 (8) 9.0 μg/m3 (38) 38.0
 
July 18, 2021, noon N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A 10.0 μg/m3 (10) 6.0 μg/m3 (25) 25.0
 
July 18, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) N/A 11.0 μg/m3 (11) 7.0 μg/m3 (30) 30.0
 
July 18, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A 16.0 μg/m3 (15) 5.0 μg/m3 (21) 21.0
 
July 18, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) N/A 4.0 μg/m3 (4) 5.0 μg/m3 (21) 21.0
 
July 18, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (7) 2.0 μg/m3 (9) 9.0
 
July 18, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) N/A 8.0 μg/m3 (8) 4.0 μg/m3 (17) 17.0
 
July 18, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A 8.0 μg/m3 (8) 3.0 μg/m3 (13) 13.0
 
July 18, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A 9.0 μg/m3 (9) 7.0 μg/m3 (30) 30.0
 
July 18, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A 7.0 μg/m3 (7) 2.0 μg/m3 (9) 15.0
 
July 18, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A 2.0 μg/m3 (2) 5.0 μg/m3 (21) 21.0
 
July 18, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 6.0 μg/m3 (6) 3.0 μg/m3 (13) 25.0
 
July 18, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 9.0 μg/m3 (9) 7.0 μg/m3 (30) 30.0
 
July 18, 2021, midnight N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 5.0 μg/m3 (5) 3.0 μg/m3 (13) 24.0
 
July 17, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 0.0 μg/m3 (0) 10.0 μg/m3 (42) 42.0
 
July 17, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 1.0 μg/m3 (1) 5.0 μg/m3 (21) 21.0
 
July 17, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 17.0 μg/m3 (16) N/A 30.0
 
July 17, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 17.0 μg/m3 (16) 17.0 μg/m3 (62) 62.0
 
July 17, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 12.0 μg/m3 (12) 7.0 μg/m3 (30) 39.0
 
July 17, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 12.0 μg/m3 (12) 11.0 μg/m3 (46) 46.0
 
July 17, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 10.0 μg/m3 (10) 11.0 μg/m3 (46) 46.0
 
July 17, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 9.0 μg/m3 (9) 11.0 μg/m3 (46) 46.0
 
July 17, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 10.0 μg/m3 (10) 15.0 μg/m3 (58) 58.0
 
July 17, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 14.0 μg/m3 (13) 9.0 μg/m3 (38) 38.0
 
July 17, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 13.0 μg/m3 (13) 9.0 μg/m3 (38) 38.0
 
July 17, 2021, noon N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 12.0 μg/m3 (12) 11.0 μg/m3 (46) 46.0
 
July 17, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A 10.0 μg/m3 (10) 12.0 μg/m3 (50) 50.0
 
July 17, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A 12.0 μg/m3 (12) 11.0 μg/m3 (46) 46.0
 
July 17, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A 12.0 μg/m3 (12) 7.0 μg/m3 (30) 30.0
 
July 17, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (8) 10.0 μg/m3 (42) 42.0
 
July 17, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 17.0 μg/m3 (16) 6.0 μg/m3 (25) 25.0
 
July 17, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 15.0 μg/m3 (14) 9.0 μg/m3 (38) 38.0
 
July 17, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 10.0 μg/m3 (10) 9.0 μg/m3 (38) 38.0
 
July 17, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 13.0 μg/m3 (13) 7.0 μg/m3 (30) 30.0