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Idesia (Arica)

versão On-line ISSN 0718-3429


WALTER, Pablo. Controversies at the origin of boron contamination. Sub-basin of the Calchaquí River. Salta province. Argentina. Idesia [online]. 2020, vol.38, n.2, pp.31-39. ISSN 0718-3429.

The water that is destined to the irrigation of the crops of fruit trees, legumes, vegetables or cereals, among others, needs to satisfy a pattern of quality, not having to contain toxic substances in excess or heavy metals that are also polluting for the ground. However, in the rivers of the high basin of the Oath of the Calchaquí Valley of Salta, contamination was found constantly in irrigation waters with boron (B).

There are several hypotheses about the origin of the presence of B, in concentrations that are toxic to plants, in river waters. This work tries to investigate, through sources of different authors, the possible origins in the rivers of the upper Juramento River Basin, located in the area adjacent to the department of Los Andes. For this, a qualitative analysis was carried out based on an exhaustive search for secondary school and selecting a bibliographic production of different authors that have defined the origins and effects of the presence of B.

Many factors can give reasons for the B in the waters. There are several indications of the origin by which the B reaches the rivers of the Calchaquí Valley of Salta. These hypotheses can be multicausal.

Palavras-chave : boro; origin; Calchaqui Valley; pollution.

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