From: Association between personal exposure to ambient metals and respiratory disease in Italian adolescents: a cross-sectional study
PM10
Mn
Ni
Cr
Fe
Zn
1.000
0.236**
0.213**
0.141*
0.296**
0.175**
0.754**
0.740**
0.721**
0.747**
0.791**
0.765**
0.775**
0.717**
0.738**
0.784**