Worldwide cases of water pollution by emerging contaminants: a review

Water contamination by emerging contaminants is increasing in the context of rising urbanization, industrialization, and agriculture production. Emerging refers to for which there currently no regulation requiring monitoring or public reporting their presence our water supply wastewaters. There are many such as pesticides, pharmaceuticals, drugs, cosmetics, personal care products, surfactants, cleaning industrial formulations chemicals, food additives, packaging, metalloids, rare earth elements, nanomaterials, microplastics, pathogens. The main sources domestic discharges, hospital effluents, wastewaters, runoff from agriculture, livestock aquaculture, landfill leachates. In particular, effluents municipal wastewater treatment plants major contributors waters. Although chemicals have been recently regulated priority hazardous substances, conventional drinking were not designed remove most contaminants. Here, we review key examples China, Portugal, Mexico, Colombia, Brazil. Examples include persistent organic pollutants polychlorinated biphenyls, dibenzofurans, polybrominated diphenyl ethers, lake ocean ecosystems China; alkylphenols, natural synthetic estrogens, antibiotics, antidepressants Portuguese rivers; hormones, pesticides Mexican, Brazilian, Colombian All continents affected these Wastewater should therefore be upgraded, e.g., addition tertiary systems, limit environmental pollution.