| Microorganisms |
Pathogenic bacteria, viruses and worms’ eggs |
Risk when exposed to humans and animal by inhalation or drinking |
| Micropollutants |
Pesticides, pharmaceuticals, fuel additives, cyanotoxins, personal care products, detergents |
Environmental as well as further expected impacts on humans, such as genotoxic, immunotoxic, carcinogenic and fertility-impairing effects |
| Suspended solids |
Particles, solids, colloids |
Carrying pollutants and pathogens |
| Biodegradable organic matters |
Organic carbon, sugar, protein, ammonia |
Oxygen depletion in rivers, lakes and fjords; fish death; odors |
| Other organic matters |
Fat, oil and grease, coloring, solvents, phenols |
Toxic effect, esthetic inconveniences, bioaccumulation in the food chain |
| Other Nutrients |
Nitrogen (ammonium, nitrates), phosphorus |
Eutrophication, oxygen depletion, toxic effect |
| Metals |
Hg, Pb, Cd, Cr, Cu, Ni |
Toxic effect, bioaccumulation |
| Others inorganic materials |
Acids, for example, hydrogen sulfide, bases |
Corrosion, toxic effect |
| Thermal effects |
Hot water |
Changing living conditions for flora and fauna |
| Odor (and taste) |
Hydrogen sulfide |
Esthetic inconveniences, toxic effect |
| Radioactivity |
|
Toxic effect, accumulation |
