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Table 4

Linear correlation coefficients between rainfall characteristics and EMC of heavy metals in overpass section

CuCrZnPbMnCdNi
Rainfall 0.6139 0.3890 0.0480 0.1296 −0.1653 0.1546 0.6660 
Maximum rainfall intensity 0.5471 0.4069 0.0316 0.3038 −0.1873 0.2126 0.5630 
Average rainfall intensity 0.6020 0.2818 0.0283 0.1367 −0.1338 0.1997 0.6380 
Antecedent sunny days 0.3625 −0.1005 −0.1483 −0.4394 −0.1507 0.8773 0.6586 
CuCrZnPbMnCdNi
Rainfall 0.6139 0.3890 0.0480 0.1296 −0.1653 0.1546 0.6660 
Maximum rainfall intensity 0.5471 0.4069 0.0316 0.3038 −0.1873 0.2126 0.5630 
Average rainfall intensity 0.6020 0.2818 0.0283 0.1367 −0.1338 0.1997 0.6380 
Antecedent sunny days 0.3625 −0.1005 −0.1483 −0.4394 −0.1507 0.8773 0.6586 
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