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. Author manuscript; available in PMC: 2021 Aug 1.
Published in final edited form as: Environ Sci Pollut Res Int. 2020 May 28;27(24):30542–30557. doi: 10.1007/s11356-020-09257-3

Table 1.

Fuzzy function, midpoint, and spread for each factor layer used to create the environmental risk map

Factor Fuzzy Function Midpoint (Spread)*
Proximity to AUMs MS large 0.269 (1)*
Proximity to roads MS small 1 (1)*
Downslope drainage Small 39,530.762 (10)
Landforms Small 1.5 (3)
Wind Index Large 0.499 (2)
TWE MS large 1 (0.025)*
Vegetative robustness Small 3,231.5 (2)
Groundwater contamination Large 13.652 (5)
*

Note: indicates mean (standard deviation)