Luftkvalitet i Old Chestnut Hill Historic District, forente stater
Forurensende stoffer i Old Chestnut Hill Historic District, forente stater
PM10
0.21 μg/ft3
PM25
0.10 μg/ft3
NO2
5.4 ppb
SO2
0.5 ppb
CO
0.2 ppb
O3
Primær forurensningsstoff
49.6 ppb
Lav risikoHøy risiko
Pollenindeks i Old Chestnut Hill Historic District, forente stater
Tre
5/5
012345
Ugress
0/5
012345
Gress
0/5
012345
Luftkvalitetsvarsel i Old Chestnut Hill Historic District, forente stater
tir. 22. april
MorgenMiddagstidKveldNatt
Neste dag
Neste dag
Luftkvalitetindeks46
36
44
54
Neste dag
PollenTre
2
2
3
2
Ugress
0
0
0
0
Gress
0
0
0
0
Neste dag
PM10
0.32 μg/ft3
0.21 μg/ft3
0.31 μg/ft3
0.40 μg/ft3
PM25
0.23 μg/ft3
0.16 μg/ft3
0.22 μg/ft3
0.30 μg/ft3
NO2
3 ppb
2.8 ppb
1.4 ppb
1.1 ppb
SO2
0.4 ppb
0.3 ppb
0.4 ppb
0.5 ppb
CO
0.2 ppb
0.2 ppb
0.1 ppb
0.2 ppb
O3
38 ppb
39.2 ppb
44 ppb
52.4 ppb
Luftkvalitetindeks
54
52
52
48
Pollen
Tre
2
2
3
3
Ugress
0
0
0
0
Gress
0
0
0
0
PM10
0.40 μg/ft3
0.37 μg/ft3
0.34 μg/ft3
0.36 μg/ft3
PM25
0.30 μg/ft3
0.27 μg/ft3
0.24 μg/ft3
0.24 μg/ft3
NO2
1.1 ppb
2.4 ppb
1.9 ppb
1.2 ppb
SO2
0.5 ppb
0.6 ppb
0.3 ppb
0.4 ppb
CO
0.2 ppb
0.2 ppb
0.1 ppb
0.1 ppb
O3
52.4 ppb
55.2 ppb
56.5 ppb
50.1 ppb