fertilizer are applied to plant in a soil.how to water pollution.

first fertilizer is one of  physical matter 
if you are apply  fertilizes in a soil then it is dissolve in soil first then if coming in rain season water are flowing throng soil and all fertilizes are combine with a water. that is rite to fertilizes are dissolve in water but that are harmful effect in human being, it mainly effected in water living organisms.
it very effect in soil pollution, if one time apply the fertilize then  soil are pollution, 
and water also pollute main reason is applied fertilize.