Comparative assessment of soil microbial community in crude oil contaminated sites

Petroleum refineries generate oily sludge that contains hazardous polycyclic aromatic hydrocarbons (PAH), and hence, its proper disposal is of foremost concern. Analysis of the physicochemical properties and functions of indigenous microbes of the contaminated sites are essential in deciding the str...

Full description

Saved in:
Bibliographic Details
Published in:Environmental pollution (1987) 2023-07, Vol.328, p.121578-121578, Article 121578
Main Authors: Yerulker, Guneshwari, Patel, Priya, Chafale, Ayushi, Rathod, Visha, Das, Sandeep, Pandey, Piyush, Khan, Noor Afshan, Devi, Arundhuti, Munshi, Nasreen S., Dhodapkar, Rita, Kapley, Atya
Format: Article
Language:English
Subjects:
Aging
Anthracenes - analysis
Biodegradation, Environmental
Crude oil contamination
Fluorenes - analysis
Hydrocarbons - metabolism
Microbial community
Microbiota
Petroleum - analysis
Phenanthrenes - metabolism
Polycyclic aromatic hydrocarbons (PAHs)
Polycyclic Aromatic Hydrocarbons - analysis
Refinery sludge
Sewage - microbiology
Soil
Soil Microbiology
Soil Pollutants - analysis
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Petroleum refineries generate oily sludge that contains hazardous polycyclic aromatic hydrocarbons (PAH), and hence, its proper disposal is of foremost concern. Analysis of the physicochemical properties and functions of indigenous microbes of the contaminated sites are essential in deciding the strategy for bioremediation. This study analyses both parameters at two geographically distant sites, with different crude oil sources, and compares the metabolic capability of soil bacteria with reference to different contamination sources and the age of the contaminated site. The results indicate that organic carbon and total nitrogen derived from petroleum hydrocarbon negatively affect microbial diversity. Contamination levels vary widely on site, with levels of PAHs ranging from 5.04 to 1.66 × 103 μg kg−1 and 6.20 to 5.64 × 103 μg kg−1 in Assam and Gujarat sites respectively, covering a higher proportion of low molecular weight (LMW) PAHs (fluorene, phenanthrene, pyrene, and anthracene). Functional diversity values were observed to be positively correlated (p 
ISSN:0269-7491
1873-6424
DOI:10.1016/j.envpol.2023.121578