Spectroscopic characterization of red latosols contaminated by petroleum-hydrocarbon and empirical model to estimate pollutant content and type

This work assesses the applicability of reflectance spectroscopy to monitor petroleum hydrocarbon (PHC) leaks in petroleum facilities using the direct detection of the pollutant in bare soils. A controlled, lab-scale experiment is conducted, where red latosols are contaminated with several types of...

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Bibliographic Details
Published in:Remote sensing of environment 2016-03, Vol.175, p.323-336
Main Authors: Correa Pabón, Rosa Elvira, Souza Filho, Carlos Roberto de
Format: Article
Language:English
Subjects:
Contamination
Crude oil
Hydrocarbon
Hydrocarbons
Leaks
Petroleum
Pipeline
Pollutants
Red latosol
Refinery
Reflectance spectroscopy
Regression analysis
Soils
Spectra
Spectroscopy
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Summary:This work assesses the applicability of reflectance spectroscopy to monitor petroleum hydrocarbon (PHC) leaks in petroleum facilities using the direct detection of the pollutant in bare soils. A controlled, lab-scale experiment is conducted, where red latosols are contaminated with several types of hydrocarbons (crude oils and derivatives) and in different concentrations, in order to simulate leaks. Results portray key spectroscopic characteristics of contaminated soils, spectral temporal variation patterns, and spectral detection limits considering visible–near infrared and short wave infrared wavelengths. Regression analysis models allow quantifying the pollution level and estimating the hydrocarbon type. This seamless method has a great potential to be used in environmental monitoring of bare soil along refineries and pipelines. •Reflectance spectroscopy is assessed as tool for monitoring PHC leaks.•A lab-scale controlled experiment is conducted where soils are contaminated with PHCs.•Key spectral signatures of PHC-bearing soils are reported.•Depth of HC diagnostic absorption bands is related to pollution level in soils.•Regression models allow estimated the pollution level and PHC type in the soil.
ISSN:0034-4257
1879-0704
DOI:10.1016/j.rse.2016.01.005