Is it good way to calculate pollution with metals in lakes bottom sediment?
I have calculated Geoaccumulation Idndex, yet still wonder if MPI is good.
I have used formula:
MPI = (M1xM2xM3x...xMn)^(1/m),
where M1,2,3,n are concentrations of different metals in 1 sample,
m is number of metals.
Thank you!
Yes, M1,2,3,n are concentrations of different metals in 1 sample,
m is number of measured metals.
Dear Slavka M Stankovic,
Do you think that MPI is realible factor to show environmental enrichment with heavy metals?
Would you suggest me any other factor beside Igeo, MPI and Pollution Index?
Mathematically, no. If you measure any one metal and it is at zero concentration, your answer is zero. Also, not all metals are toxic. I do not see how this equation could be reliable. If you had lead high, but 9 other metals very low, your answer is going to be low. However, I have not heard of this equation, so if it was developed to apply to only certain metals, that might be different. Each metal has its own toxicity range, so how could it be reliable? I think by deductive reasoning, you have to question it.
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