All the suspended material in water, organic matter or nutrients, such as nitrogen or phosphate. They may occur naturally in water but their concentration increases with human activities (wastewater discharge, agriculture...). In contrast to micropollutants, which are toxic even at low concentration, macropolluants requires higher content to cause bad effects.
Group of local authorities in charge of the local management project and of the territorial water coordination, at the watershed scale. The Public water management and development agency has to ensure flood prevention as well as non-state-owned rivers management.
Self-monitoring system generally required by law, to check the operation or impact of installations (e.g. wastewater-treatment plants, industrial sites, etc.). Generally speaking, it addresses the assessment water quality at the output of installations classified for environnemental protection, and the control of wastewater-treatment plants and sanitation networks.
Methodical review allowing both to identify and quantify the different components of water, but also to evaluate its characteristics and state, according to specific criteria. This review is based on the following of specific protocols adapted to the various controlled parameters.