Polycyclic aromatic hydrocarbons (PAHs) are an important group of organic and ubiquitous contaminants with carcinogenic and mutagenic properties, persistent in different ecosystems. Several natural and anthropogenic processes are responsible for PAHs production such as human excretion products, household disposals, fossil fuel spillage, and urban runoff inputs that flush the organics deposited on the ground surface from vehicles or heating systems. The PAHs presence in the discharge sites and adjacent stream waters must be monitored because they can easily pass into the food chain, due to their chemical and physical properties (low hydrosolubility and high hydrophobicity). The aim of this work is the analytical determination of 16 priority EPA (Environmental Protection Agency) PAHs in different samples coming from an Italian landfill applying liquid chromatography with both fluorimetric and UV detection. Different kinds of samples have been analyzed: 10 taken from GroundWater (GW), 2 from Stream Water (SW) and 3 from Leachate (L). Extraction and clean-up of the compounds have been achieved in a single step procedure, using liquid-liquid technique for GW and SW samples and microwave technique for L samples. From the relative concentration ratios of phenanthrene/anthracene and phenanthrene/pyrene in the Leachate samples it is possible to recognize the origin of PAHs production: pyrolitic origin due to anthropogenic combustion processes, in contrast to petrogenic origin. In order to investigate the concentration trend of PAHs in landfill and adjacent stream waters sampling has been performed along two years (2013-2014) in different season periods (spring/summer and autumn/winter). The results showed an increasing trend during the entire period of analysis, in particular concentration values found in the autumn/winter periods are little higher than those found in the spring/summer ones.
Polycyclic aromatic hydrocarbons (PAHs) are an important group of organic and ubiquitous contaminants with carcinogenic and mutagenic properties, persistent in different ecosystems. Several natural and anthropogenic processes are responsible for PAHs production such as human excretion products, household disposals, fossil fuel spillage, and urban runoff inputs that flush the organics deposited on the ground surface from vehicles or heating systems. The PAHs presence in the discharge sites and adjacent stream waters must be monitored because they can easily pass into the food chain, due to their chemical and physical properties (low hydrosolubility and high hydrophobicity). The aim of this work is the analytical determination of 16 priority EPA (Environmental Protection Agency) PAHs in different samples coming from an Italian landfill applying liquid chromatography with both fluorimetric and UV detection. Different kinds of samples have been analyzed: 10 taken from GroundWater (GW), 2 from Stream Water (SW) and 3 from Leachate (L). Extraction and clean-up of the compounds have been achieved in a single step procedure, using liquid-liquid technique for GW and SW samples and microwave technique for L samples. From the relative concentration ratios of phenanthrene/anthracene and phenanthrene/pyrene in the Leachate samples it is possible to recognize the origin of PAHs production: pyrolitic origin due to anthropogenic combustion processes, in contrast to petrogenic origin. In order to investigate the concentration trend of PAHs in landfill and adjacent stream waters sampling has been performed along two years (2013-2014) in different season periods (spring/summer and autumn/winter). The results showed an increasing trend during the entire period of analysis, in particular concentration values found in the autumn/winter periods are little higher than those found in the spring/summer ones.
Analysis and distribution of Polycyclic Aromatic Hydrocarbons (PAHs) in groundwater, leachate and stream water samples in an Italian landfill / Vinci, Giuliana; Preti, Raffaella; Restuccia, Donatella; Antonelli Marta, Letizia. - CD-ROM. - unico:(2015), pp. 218-225. (Intervento presentato al convegno 21° Convegno di Igiene Industriale. Le Gionate di Corvara. tenutosi a Corvara (BZ) nel 25-27 marzo 2015).
Analysis and distribution of Polycyclic Aromatic Hydrocarbons (PAHs) in groundwater, leachate and stream water samples in an Italian landfill.
VINCI, Giuliana;PRETI, Raffaella;Restuccia Donatella;
2015
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are an important group of organic and ubiquitous contaminants with carcinogenic and mutagenic properties, persistent in different ecosystems. Several natural and anthropogenic processes are responsible for PAHs production such as human excretion products, household disposals, fossil fuel spillage, and urban runoff inputs that flush the organics deposited on the ground surface from vehicles or heating systems. The PAHs presence in the discharge sites and adjacent stream waters must be monitored because they can easily pass into the food chain, due to their chemical and physical properties (low hydrosolubility and high hydrophobicity). The aim of this work is the analytical determination of 16 priority EPA (Environmental Protection Agency) PAHs in different samples coming from an Italian landfill applying liquid chromatography with both fluorimetric and UV detection. Different kinds of samples have been analyzed: 10 taken from GroundWater (GW), 2 from Stream Water (SW) and 3 from Leachate (L). Extraction and clean-up of the compounds have been achieved in a single step procedure, using liquid-liquid technique for GW and SW samples and microwave technique for L samples. From the relative concentration ratios of phenanthrene/anthracene and phenanthrene/pyrene in the Leachate samples it is possible to recognize the origin of PAHs production: pyrolitic origin due to anthropogenic combustion processes, in contrast to petrogenic origin. In order to investigate the concentration trend of PAHs in landfill and adjacent stream waters sampling has been performed along two years (2013-2014) in different season periods (spring/summer and autumn/winter). The results showed an increasing trend during the entire period of analysis, in particular concentration values found in the autumn/winter periods are little higher than those found in the spring/summer ones.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
