Microbial diversity in firework chemical exposed soil and water samples collected in Virudhunagar district, Tamil Nadu, India

Abstract

Microbial diversity of soil and water samples collected from pyrochemicals exposed areas of Virdhunagar district (Tamil Nadu, India) was studied. Soil and water samples from cultivable area, waste land and city area of the same region were also studied for a comparative acount. There is a remarkable reduction in total heterotrophic bacterial population (THB) in pyrochemicals exposed soil and water samples (42 × 10 4 CFU/g and 5.6 × 10 4 CFU/ml respectively), compared to the THB of cultivable area soil and water samples (98 × 10 7 CFU/g and 38.6 × 10 7 CFU/ml). The generic composition the THB of the pyrochemicals exposed samples too exhibited considerable change compared to other samples. Pseudomonas sp. was the predominant one (41.6%) followed by Achromobacter sp. (25%) in pyrochemical exposed soil and Pseudomonas sp. was the predominant one (25%) in pyrochemical exposed water samples followed by Bacillus sp. (25%) and Micrococcus sp. (16.6%). It was observed that Cornybacterium sp. and Micrococcus sp. were absent completely in pyrochemical exposed soil and Achromobacter sp. was missing in the pyrochemical exposed water samples, which were present in the other samples. The outcome of this study clearly demonstrates that pollutants such as chemicals used in pyrotechniques affect the microbial biodiversity and suitable measures have to be taken to control the pollution level and to save biodiversity.

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“…In addition, pyrochemicals are known to act on microbes either as free radical or in molecular state, thus destructing the cell wall or the genetic material (Kim et al., 2016). The results of the present study correlate with a previous one which ascertained the impact of pyrochemicals on microbial diversity in soil, leading to reduction in bacterial count (Dhasarathan et al., 2010).…”

Influence of Long Term Irrigation with Pulp and Paper Mill Effluent on the Bacterial Community Structure and Catabolic Function in Soil

“…It can be seen that both the EIF and the WIF fields were dominated by Bacillus and Bacillus-derived genera. These genera have been reported inhabiting industrial effluents [22] contaminated water samples [23]. They play a potential role in kraft lignin degradation [24], and therefore it is not with great surprise that these genera were found in the effluent irrigated samples.…”

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“…Estos valores son claramente superiores a lo reportado por Wan et al, (2015) y están con la quema masiva de fuegos artificiales para conmemorar las festividades de primavera durante esos meses. Dhasarathan et al, (2010) Dhasarathan et al, (2010) observed that in soil Information given in Table 5 de contaminantes en diversas festividades mexicanas, (ii) análisis de la composición y concentración de metales en el material particulado, (iii) cuantificación de la emisión de gases de efecto invernadero, (iv) análisis de contenido de perclorato en suelos y cuerpos de agua y (v) calcular el porcentaje de contaminación atmosférica por quema masiva de pirotecnia con respecto al total de la contaminación atmosférica.…”