Brasil das Águas - Gerard e Margi Moss

Mapa SIG (GIS)

Cortesia Hiparc

RESULTS

The portrait of water quality as shown on this map was derived from combinations of phosphorus (P), dissolved inorganic nitrogen (NID) and cyanobacteria. The synthesis of this data is indicative of the water purity of each of the 1,160 locations sampled by the Waters of Brazil project.

KEY
	NATURAL WATERS
	WATERS WITH MODERATE PROPORTIONS OF NATURALLY OCCURRING NITROGEN AND PHOSPHORUS Pale blue indicates clean bodies of water, where there has been no undesirable impact affecting water usage.
	WATERS THAT HAVE SUFFERED MODERATE LEVELS OF IMPACT Water bodies showing intermediary productivity, with possible repercussions on water quality, but at acceptable levels in most cases.
	IMPACTED WATERS
	WATERS PREDOMINANTLY IMPACTED BY AGRICULTURE Orange represents water bodies with a higher productivity than natural waters, have low transparency, are generally affected by anthropic activities which cause undesirable alterations to the water quality and ultimately interfere with its usage.
	WATERS INDICATING HIGH LEVELS OF HUMAN IMPACT Water bodies heavily impacted by high concentrations of organic matter and nutrients, significantly jeopardizing usage and possibly resulting in periods of mortality of the aquatic animals living in this environment.
	Presence of potentially toxic cyanobacteria

For System : Marfisa.org