How does coal soot affect water quality?

Y. asked:


Does anyone know the effects of coal soot in water? Does it change the pH or the hardness of the water? If the emissions of the coal burning facility (in this case a coal furnace for ones house) were directly injected into a water supply how would that affect it? Would it kill things or would there be an algal bloom due to the high amounts of CO2? Im doing an experiment in which I WANT an algal bloom. Any help would be appreciated. Thanks!