There is a risk with almost everything.
There are some people in the world who have found remote places to live where there are no electric lines to avoid flux, no phone signals, no micro waves and other signals etc. By doing so, according to them, they are living healthier lives. I think they are right and indeed they are living healthier lives as this is closer to nature.
My point is only that according to scientific studies, the risk associated with life in the vicinity of a cement plant is "Very Low". They have considered all possible effects and diseases. They have considered the health of people working at the plant (not just in a 3 km radius but on the plant itself).
They did not say there is no risk. Yes there is some risk. But it is a "Very Low" risk according to their scientific assessment.
Now if someone does not want to take even a "Very Low Risk", I respect his decision. Yes he should not buy in Multi Orchards.