Effects of acid rain on microorganisms pH determines the proliferation of any microbial species. The optimum pH of most bacteria and protozoa is near neutrality. Most fungi prefer an acidic environment. Most blue-green bacteria prefer an alkaline environment. So, microbial species in the soil and water shift from bacteria-bound to fungi-bound. This causes a delay in the decomposition of soil organic material. 510 viewsedited 08:33
