Concepto |
Unidades |
1990 |
1995 |
2000 |
2005 |
2006 |
2007 |
2008 |
2009 |
2010 |
2011 |
2012 |
2013 |
Estación de medición |
Nombre |
|
Estuario Cruce Frontera |
Estuario Cruce Frontera |
El Rosarito, Tabasco |
El Rosarito, Tabasco |
El Rosarito, Tabasco |
El Rosarito, Tabasco |
El Rosarito, Tabasco |
El Rosarito, Tabasco . |
El Rosarito, Tabasco |
El Rosarito, Tabasco |
Estuario Cruce Frontera |
Estuario Cruce Frontera |
Distancia a la desembocadura |
km |
10 |
10 |
51 |
51 |
51 |
51 |
51 |
51 |
51 |
51 |
10 |
10 |
Frecuencia
de muestreo anual |
Número |
12 |
14 |
5 |
5 |
6 |
6 |
6 |
6 |
4 |
5 |
3 |
6 |
Parámetros (promedio anual) |
Temperatura |
°C |
27 |
26 |
27.4 |
30 |
27.29 |
29 |
26.28 |
27.33 |
26.75 |
27 |
28.8 |
29.37 |
Acidez |
pH |
7.1 |
7.4 |
8 |
7.65 |
7.23 |
7.3 |
7.38 |
7.6 |
6.76 |
6.6 |
7.38 |
7.6 |
Oxígeno
disuelto |
mg O2 / l |
6.41 |
7.5 |
7.12 |
5.36 |
5.33 |
5.98 |
nd |
3.21 |
4.19 |
2.82 |
4.64 |
4.33 |
Saturación
de oxígeno |
% |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
54.25 |
DBO
(20°C 5d) |
mg O2/ l |
2.15 |
2 |
1.75 |
2.15 |
5.18 |
6.22 |
<3 |
4.32 |
4.25 |
10.64 |
16.59 |
8.67 |
DQO (K2Cr2O7) |
mg O2/ l |
29.1 |
99 |
36 |
8.7 |
23.51 |
16.29 |
13.43 |
14.37 |
10.23 |
18.18 |
50.54 |
20.77 |
Sólidos
suspendidos |
mg/ l |
45.5 |
36 |
164.25 |
33.5 |
129.33 |
79.67 |
106 |
36 |
53.5 |
38 |
36 |
43.17 |
Sólidos
disueltos |
mg/ l |
nd |
nd |
nd |
204.63 |
191.67 |
239 |
223.31 |
168.8 |
290 |
287 |
451.3 |
536.2 |
Nitrógeno
total |
mg N/ l |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
0.91 |
0.51 |
Nitratos |
mg NO3/ l |
0.2 |
0.06 |
0.108 |
0.21 |
0.283 |
1.19 |
1.46 |
nd |
nd |
0.39 |
1.76 |
2.25 |
Amonio |
mg NH4/ l |
0.02 |
0.002 |
nd |
1.37 |
0.978 |
1.25 |
1.14 |
nd |
nd |
nd |
<0.4 |
<0.0014 |
Fósforo
total |
mg P/ l |
nd |
nd |
0.165 |
0.396 |
0.151 |
nd |
nd |
nd |
nd |
nd |
0.55 |
0.17 |
Ortofosfatos |
mg P/ l |
0.28 |
0.06 |
0.0625 |
nd |
nd |
0.07 |
0.88 |
nd |
nd |
<0.196 |
<0.0061 |
0.11 |
Coliformes
fecales |
NMP/100 ml |
1.81 E3 |
2.3 E3 |
1.19 E4 |
2,419 |
2,090 |
1,442 |
2,367 |
11,103 |
4,785 |
35,780 |
400 |
>2400 |
Arsénico
total |
mg As/ l |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
<0.00013 |
<0.00013 |
Cadmio
total |
mg Cd/ l |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
<0.00004 |
<0.00004 |
Cromo
total |
mg Cr/ l |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
<0.00033 |
<0.00033 |
Cobre
total |
mg Cu/ l |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
Plomo
total |
mg Pb/ l |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
<0.00032 |
<0.00032 |
Mercurio
total |
mg Hg/ l |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
<0.00074 |
<0.00005 |
Níquel
total |
mg Ni/ l |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
<0.042 |
<0.00019 |
Notas: |
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Se reporta datos de diferentes estaciones porque a partir del año 2000 no se dispuso de recursos para acceder a la estación Estuario Cruce Frontera; a partir del año 2012 se dispuso de recursos adicionales para apoyar el |
monitoreo de la calidad del agua, por lo que se puede reportar nuevamente las mediciones de dicha estación. |
Ubicación
geográfica de las estaciones de medición. Estuario Cruce Frontera: 18º 31´
30" lat. N; 92º 30´ 10" long. W; El Rosarito, Tabasco: 18°10' 00''
lat. N; 92°42' 00'' long. W. |
nd. No disponible |
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Fuente: |
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Comisión Nacional del Agua, Gerencia
de Calidad del Agua, Febrero 2015 |
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