• Kiran Pal
• Hasmat Ali
• Madhuri Yadav

Soil is one of the environmental natural resources which is most important for human life and is very important for human health and the quality of ecological environment. Heavy metals have a direct effect on soil enzyme activity, due to which the spatial structure of the active groups of the enzyme is destroyed, due to which the growth and reproduction of microorganisms is disrupted and the synthesis and metabolism of the microbial enzyme is reduced. Soil microbes are often used as an important indicator of soil environmental quality because their sensitivity to soil environmental conditions is greater than of larger animals or plants. Through the soil microbial changes, whether the soil is contaminated, the extent of soil pollution. The effect of heavy metal on soil microbial effect mainly includes the influence of heavy metals on soil microbial activity, the effect on soil enzyme activity and the composition of soil microbial community. Heavy metals kill microbes by binding to proteins, thus inhibiting enzymatic activity. Heavy metals are oligodynamic, meaning that very small concentrations show significant antimicrobial activity. Mercury is heavy metal, that is used in microbial control, various forms of mercury inhibit microbial action by binding to the sulfur-containing amino acid in proteins. We collected 18 soil samples from Unnao and Jajmau in which Jajmau had the highest total microbial count (bacteria) in all three layers (Upper, middle and lower) of soil and Unnao had the lowest total microbial count (bacteria) in all three layers (Upper, middle and lower) of soil but the total microbial count (fungi) in all two layers (Upper, middle) is high in Jajmau in comparision to other total microbial count (lower layer) is low.

Soil, Industrial area, micro-organisms and Heavy metals.

"Effect of heavy metals on soil microbial count in industrial area of Kanpur Nagar", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.12, Issue 2, page no.b846-b850, February-2025, Available :http://www.jetir.org/papers/JETIR2502187.pdf

"Effect of heavy metals on soil microbial count in industrial area of Kanpur Nagar", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.12, Issue 2, page no. ppb846-b850, February-2025, Available at : http://www.jetir.org/papers/JETIR2502187.pdf