The objective of this research was to arrive at a better assessment of the quality of surface water in the Constantine region. The focus was on the comparison of three classical indices WQINSF (National Sanitation Foundation Water Quality Index). WQICCME (Canadian Council of Ministers of the Environment Water Quality Index) and WQIAP (weighted arithmetical Water Quality Index). the de... https://www.parisnaturalfoodes.shop/product-category/hot-choc-milk-choc/