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Calidad del agua en estaciones seleccionadas del Río Pánuco |
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Concepto |
Unidades |
1990 |
1995 |
2000 |
2005 |
2006 |
2007 |
2008 |
2009 |
2010 |
2011 |
2012 |
2013 |
2014 |
2015 |
2016 |
2017 |
2018 |
2019 |
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Estación de medición |
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Nombre |
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El Álamo |
El Álamo |
El Álamo |
El Álamo |
El Álamo |
El Álamo |
El Álamo |
El Álamo |
El Álamo |
El Álamo |
El Álamo |
El Álamo |
El Álamo |
El Álamo |
El Álamo |
El Álamo |
El Álamo |
El Álamo |
|
Distancia a la desembocadura |
km |
58 |
58 |
58 |
58 |
58 |
58 |
58 |
58 |
58 |
58 |
58 |
58 |
58 |
58 |
58 |
58 |
58 |
58 |
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Frecuencia de muestreo anual |
Número |
5 |
3 |
3 |
3 |
2 |
1 |
2 |
1 |
2 |
2 |
4 |
6 |
6 |
6 |
6 |
6 |
6 |
2 |
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Parámetros (mediana anual) |
|
Temperatura |
°C |
29 |
26 |
28 |
24.9 |
24.7 |
30.5 |
27.8 |
31 |
25.6 |
30.6 |
25.90 |
29.3 |
30.2 |
28 |
28.4 |
29.15 |
26.05 |
28.6 |
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Acidez |
pH |
nd |
nd |
6.75 |
8.2 |
7.35 |
7.8 |
7.7 |
7.62 |
7.92 |
7.97 |
8.14 |
8.41 |
8 |
8.35 |
8.15 |
7.95 |
8.2 |
8.4 |
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Oxígeno disuelto |
mg O2 / l |
8.6 |
7.8 |
5.77 |
8.3 |
7.4 |
12 |
8.4 |
9.8 |
6.3 |
7 |
8.10 |
10.005 |
8.05 |
6.125 |
6.76 |
7.12 |
5.95 |
4.465 |
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Saturación de oxígeno |
% |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
110.9 |
125.115 |
98.45 |
78.1 |
86.9 |
91.585 |
73.5 |
59.165 |
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DBO (20°C 5d) |
mg O2/ l |
1.15 |
1.3 |
3.04 |
1.01 |
4.05 |
19.2 |
4.66 |
4.77 |
1.6 |
2.315 |
<2 |
<2 |
2.2 |
<2 |
2.78 |
<2 |
<2 |
2.045 |
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DQO (K2Cr2O7) |
mg O2/ l |
12 |
5 |
15 |
8 |
16.5 |
32 |
26 |
18 |
20 |
14 |
49.05 |
<10 |
17.92 |
<10 |
<10 |
10.865 |
<10 |
11.28 |
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Sólidos suspendidos |
mg/ l |
14 |
21 |
40 |
27 |
94 |
41 |
67.5 |
9 |
36 |
35 |
24 |
47 |
29 |
34.5 |
71.5 |
47 |
23 |
16.75 |
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Sólidos disueltos |
mg/ l |
464 |
687 |
704 |
682 |
613.5 |
684 |
512.5 |
765 |
827 |
812 |
492.16 |
439.04 |
523.52 |
486.72 |
600.96 |
559.36 |
641.28 |
763.2 |
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Nitrógeno total |
mg N/ l |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
0.862 |
0.00204 |
<0.0002 |
<0.0002 |
<0.0002 |
0.002163 |
0.002165 |
<0.0002 |
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Nitratos |
mg NO3/ l |
0.53 |
0.2 |
0.42 |
0.33 |
0.98 |
0.12 |
0.305 |
nd |
1.8 |
0.63 |
0.7980 |
0.57 |
1.0365 |
0.9770405 |
0.679339 |
0.728 |
0.9715 |
1.469863 |
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Amonio |
mg NH4/ l |
nd |
nd |
0.0798 |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
0.0027 |
0.0901 |
0.0552 |
0.0480 |
0.0722 |
0.2573 |
0.0590 |
0.0578 |
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Fósforo total |
mg P/ l |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
0.13 |
0.16 |
<0.001 |
0.0714 |
0.2355 |
0.2492 |
0.2089 |
0.1737 |
0.1869 |
0.2561 |
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Ortofosfatos |
mg P/ l |
<0.01 |
0.05 |
0.555 |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
<0.001 |
0.0212 |
0.1265 |
0.1762 |
0.0540 |
0.1132 |
0.1419 |
0.2005 |
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Coliformes fecales |
NMP/100 ml |
49 |
50 |
nd |
210 |
550 |
23 |
1415 |
<3 |
3500 |
1015 |
8 |
210 |
12750 |
1994.5 |
3124 |
1425 |
4600 |
382.5 |
|
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 |
0.0067 |
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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 |
0.0045 |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
<0.00088 |
0.005483 |
<0.00088 |
<0.00088 |
<0.00088 |
<0.00088 |
<0.00088 |
0.00152 |
|
Cobre total |
mg Cu/ l |
<0.1 |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
|
Plomo total |
mg Pb/ l |
<.045 |
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 |
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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 |
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Níquel total |
mg Ni/ l |
0.5 |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
nd |
<0.0002 |
0.00204 |
<0.0002 |
<0.0002 |
<0.0002 |
0.002163 |
0.002165 |
<0.0002 |
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Notas: |
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La fuente reporta los datos con medianas en vez de promedios debido a la alta sensibilidad de los promedios a los valores extremos. |
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Ubicación geográfica de la estación de medición.El álamo : 22° 05' 46'' lat.N; 98° 08' 53'' long. W. |
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nd. No disponible |
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Fuente: |
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Comisión Nacional del Agua, Gerencia de Calidad del Agua, Junio 2020 |
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