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Table 5 Spearman Rho correlation coefficients and corresponding significances for indoor/outdoor correlations for the analysed elements and NO2 at 20 sites

From: Indoor monitoring of heavy metals and NO2 using active monitoring by moss and Palmes diffusion tubes

 

Spearman Rho correlation coefficients

Sign

Al

− 0.040

.867

Cr

0.189

.439

Cu

0.257

.274

Zn

0.364

.115

Sn

0.421

.065

Cd

0.168

.480

Pb

− 0.078

.744

Mo

0.077

.748

Sb

0.389

.090

NO2

0.373

.105