Calidad del agua en estaciones seleccionadas del Río Grijalva |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Concepto |
Unidades |
1990 |
1995 |
2000 |
2005 |
2006 |
2007 |
2008 |
2009 |
2010 |
2011 |
2012 |
2013 |
2014 |
2015 |
2016 |
2017 |
2018 |
2019 |
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 |
Estuario Cruce Frontera |
Estuario Cruce Frontera |
Estuario Cruce Frontera |
Estuario Cruce Frontera |
Estuario Cruce Frontera |
Estuario Cruce Frontera |
Distancia a la desembocadura |
km |
10 |
10 |
51 |
51 |
51 |
51 |
51 |
51 |
51 |
51 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
Frecuencia de muestreo anual |
Número |
12 |
5 |
5 |
6 |
5 |
6 |
6 |
6 |
4 |
5 |
3 |
6 |
6 |
6 |
6 |
6 |
6 |
1 |
Parámetros (mediana anual) |
Temperatura |
°C |
27 |
26.5 |
27 |
30 |
27.98 |
29 |
26.8 |
27.5 |
27 |
29 |
28 |
29.2 |
29.95 |
29.1 |
30.2 |
28.95 |
27.15 |
27.65 |
Acidez |
pH |
nd |
nd |
nd |
7.68 |
7.12 |
7.26 |
7.4 |
7.58 |
7.13 |
7.4 |
7.25 |
7.65 |
7.6 |
7.8 |
7.85 |
7.8 |
7.45 |
8.1 |
Oxígeno disuelto |
mg O2 / l |
7 |
6 |
7 |
5.86 |
5.64 |
5.81 |
nd |
3.2 |
3.89 |
2.87 |
3.11 |
4.2 |
5.2 |
4.935 |
5.65 |
5.845 |
4.205 |
4.92 |
Saturación de oxígeno |
% |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
<10 |
52.06 |
64.5 |
60.665 |
74.05 |
80.6 |
53.35 |
60.3 |
DBO (20°C 5d) |
mg O2/ l |
2 |
2 |
2.0 |
<2 |
5.071 |
5.07 |
<3 |
3.5 |
2.7 |
2.68 |
11.95 |
4.2 |
2.25 |
<2 |
3.28 |
5.605 |
11.28 |
5.22 |
DQO (K2Cr2O7) |
mg O2/ l |
18 |
24 |
18 |
7.23 |
27.4 |
15 |
11.97 |
14.69 |
10.92 |
13.11 |
42.645 |
18.05 |
29.04 |
26.94 |
25.275 |
24.245 |
39.195 |
46.73 |
Sólidos suspendidos |
mg/ l |
39 |
30 |
121 |
24 |
106 |
61 |
110 |
27 |
46 |
38 |
36 |
12 |
21 |
32 |
38 |
38 |
26 |
48 |
Sólidos disueltos |
mg/ l |
nd |
nd |
220 |
211.3 |
200 |
248 |
250 |
202 |
282 |
287 |
391.04 |
456.1024 |
796.16 |
3932.8 |
5651.2 |
3602.944 |
1958.944 |
3168 |
Nitrógeno total |
mg N/ l |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
2.26 |
0.5058 |
0.911 |
0.4928 |
0.8238 |
1.2145 |
1.3290 |
1.1695 |
Nitratos |
mg NO3/ l |
<0.1 |
0.073 |
0.11 |
0.22 |
0.26 |
0.161 |
0.302 |
nd |
nd |
0.29 |
0.34 |
0.3594 |
0.302 |
0.2237 |
0.1809 |
0.2547 |
0.5999 |
0.6538 |
Amonio |
mg NH4/ l |
nd |
nd |
nd |
1.5 |
0.89 |
1.10 |
1.15 |
nd |
nd |
nd |
0.69 |
0.0029 |
0.1647 |
0.0448 |
0.1622 |
0.2406 |
0.2380 |
0.0183 |
Fósforo total |
mg P/ l |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
<0.196 |
<0.196 |
<0.001 |
0.0382 |
0.355 |
0.0619 |
0.0460 |
0.1043 |
0.0802 |
0.2831 |
Ortofosfatos |
mg P/ l |
0.07 |
0.15 |
0.05 |
nd |
nd |
0.07 |
<0.132 |
nd |
nd |
<0.196 |
<0.001 |
0.0104 |
0.018 |
0.0045 |
0.0197 |
0.0137 |
0.0127 |
<0.001 |
Coliformes fecales |
NMP/100 ml |
1100 |
800 |
4600 |
2419.2 |
2419.2 |
1046.2 |
1684 |
3558.5 |
3000 |
4900 |
93 |
24000 |
65 |
105.75 |
1.5 |
355 |
95 |
4600 |
Arsénico total |
mg As/ l |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
<0.00139 |
<0.00139 |
<0.00139 |
<0.00139 |
<0.00139 |
<0.00139 |
<0.00139 |
<0.00139 |
Cadmio total |
mg Cd/ l |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
<0.0002 |
<0.0002 |
<0.0002 |
<0.0002 |
<0.0002 |
<0.0002 |
<0.0002 |
<0.00023 |
Cromo total |
mg Cr/ l |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
<0.00088 |
<0.00088 |
<0.00088 |
<0.00088 |
<0.00088 |
<0.00088 |
<0.00088 |
<0.00088 |
Cobre total |
mg Cu/ l |
nd |
nd |
nd |
nd |
nd |
nd |
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 |
<0.00154 |
<0.00154 |
<0.00154 |
<0.00154 |
<0.00154 |
<0.00154 |
<0.00154 |
<0.00154 |
Mercurio total |
mg Hg/ l |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
<0.00009 |
<0.00009 |
<0.00009 |
<0.00009 |
<0.00009 |
<0.00009 |
<0.00009 |
<0.00009 |
Níquel total |
mg Ni/ l |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
<0.0002 |
<0.0002 |
<0.0002 |
<0.0002 |
<0.0002 |
<0.0002 |
<0.0002 |
<0.0002 |
Notas: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
La fuente reporta los datos con medianas en vez de promedios debido a la alta sensibilidad de los promedios a los valores extremos. |
|
|
|
|
|
|
|
|
|
|
|
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 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Fuente: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Comisión Nacional del Agua, Gerencia de Calidad del Agua, Junio 2020 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|