INTERPRETACION Y
NIVELES CRITICOS DE CALIDAD DE AGUAS PARA RIEGO
(Rev. Sept 23/2002, Mayo 25 de 2003)
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GRADO DE RESTRICCION
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NINGUNO
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BAJO
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ALTO
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SEVERO | |
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RIESGO DE SALINIZACIÓN (Cultivos Intensivos) |
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Conductividad Electrica CE (mmho/cm) |
0.3 |
0.3-0.7 |
0.7-1.5 |
>1.5 |
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Sólidos Totales Disueltos TDS (mg/lt) |
<240 |
240-480 |
480-960 |
>960 |
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Sodificación; Sodio (meq/lt)
|
<2
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2-3
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3-10
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>10
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DETERIORO DE LA PERMEABILIDAD DEL SUELO |
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Conductividad Electrica CE (mmho/cm) |
<0.5 |
0.5-1.5 |
1.5-2.0 |
>2.0
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Sólidos Totales Disueltos TDS (mg/lt) |
<320 |
320-960 |
>960 |
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Relación de Adsorción de Sodio; RAS |
<3 |
3-9 |
9-12 |
>12
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RIESGO DE TOXICIDAD A LAS PLANTAS |
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RAS |
<3 |
3-9 |
>9 |
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Cloruros (meq/lt) |
<2 |
2-10 |
>10 |
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Cloruros (mg/lt) |
<70 |
70-345 |
>345 |
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Boro (mg/lt) |
<1 |
1-2 |
>2 |
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Aluminio (mg/lt) |
-
|
-
|
>5 |
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Arsenico (m/lt) |
-
|
-
|
>0.1 |
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Berilio (mg/lt) |
-
|
-
|
>0.1 |
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Cadmio (mg/lt) |
-
|
-
|
>0.01 |
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Zinc (mg/lt) |
-
|
-
|
>2.0 |
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Cobalto (mg/lt) |
-
|
-
|
>0.05 |
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Cobre (mg/lt) |
-
|
-
|
>0.2 |
|
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Cromo (mg/lt) |
-
|
-
|
>0.1 |
|
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Fluor (mg/lt) |
-
|
-
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>1.0 |
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Hierro (mg/lt) |
-
|
-
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>5.0 |
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Litio (mg/lt) |
-
|
-
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>2.5 |
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Manganeso (mg/lt) |
-
|
-
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>2.0 |
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Molibdeno (mg/lt) |
-
|
-
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>0.01 |
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Niquel (mg/lt) |
-
|
-
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>0.2 |
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Plomo (mg/lt) |
-
|
.
|
>0.1 |
|
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Selenio (mg/lt) |
-
|
-
|
>0.2 |
|
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Sodio (mg/lt) |
-
|
-
|
>60 |
|
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Vanadio (mg/lt) |
-
|
-
|
>0.1 |
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NH4 (mg/lt) |
<10 |
10-40 |
>40 |
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NO3 (mg/lt) |
<50 |
50-150 |
>150 |
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HCO3 (meq/lt) |
<1.5 |
1.85-8.5 |
>8.5 |
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(mg/lt) |
<40 |
40-520 |
>520 |
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pH
|
-
|
6.5-8.4 |
-
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TOXICIDAD POR ABSORCION FOLIAR DE
SODIO Y CLORUROS EN ASPERSION
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Sodio (meq/lt)
|
<3
|
-
|
>3
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|
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(mg/lt)
|
<70
|
-
|
>70
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|
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Cloro (meq/lt)
|
<3
|
-
|
>3
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|
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(mg/lt)
|
<100
|
-
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>100
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RIESGO DE TAPONAMIETO DE GOTEROS
Y MANGUERAS
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Hierro (mg/lt)
|
<1
|
1-2
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2-4
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>4
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Manganeso (mg/lt)
|
<1
|
-
|
>2
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RIESGO DE CORROSION DE LAS TUBERIAS
Y BOMBAS
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pH
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>6.5
|
6.5-5.5
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5.5-4
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< 4
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Indice de Langelier
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> 0
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< 0
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Indice de Ryznar
|
<6
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6-7
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7-8
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>8
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