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Table 3 Correlations between noise level, number of working sawmilling machines and particle concentrations during measurement (comparing WD and WE)

From: Influences of wind speed and direction on atmospheric particle concentrations and industrially induced noise

Measurment Time WD WE
Leq vs no of working sawmilling machines Morning 0.24 0.21
Afternoon 0.62* 0.29
Evening 0.19 0.03
Leq vs PM1 Morning 0.31 0.20
Afternoon 0.32 0.24
Evening 0.34 0.14
Leq vs PMcoarse Morning −0.17 −0.14
Afternoon 0.20 −0.18
Evening −0.18 −0.16
  1. * Significant at p < 0.05. WD and WE represent weekdays and weekends respectively