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Title: Estimation of risks induced by gaseous emissions from soil / subsoil in areas located near the landfills
Authors: Stanescu, Bogdan
Petrescu, Marinela
Batrinescu, Gheorghe
Keywords: Risk assessment;Gas emission;Landfill;Soil;Subsoil
Issue Date: 2011
Publisher: National Research and Development Institute for Industrial Ecology, INCD-ECOIND
Estimating risks induced by gaseous emissions from soil/subsoil dangerous nature (methane) in areas close to municipal landfills is of particular importance in the context of future developments, some of these lands may have residential destinations. The methodology for assessing these risks starts with a documentary phase (office): gathering relevant information on the landfill site, its history, as well us geomorphology and lithology data area. Continue to identify potential sources and then the migration paths of gaseous
emissions from soil / subsoil to the receptors.This paper presents the methods of investigation of emissions from soil/subsoil area situated in the neighborhood of two municipal waste landfills chosen as case studies; running several campaigns of investigation on which the intrusive methods have been applied, i.e. achievement of boreholes and measuring collection gas concentration with portable gas analyzer (O2, CO2, CH4, CO, and H2S). For spatio-temporal evolution of the gaseous emissions were added for the correlation, data on weather conditions and lithology of the areas analyzed. From the methodological point of view, risk estimation is based on the identification and expression of two categories of factors, i.e. the probability of appearance and the effects on receptors that highlight levels of risk arising on a scale with five levels of risk, at a very low risk to a very high level of risk. Another methodological approach allows the quantification of risk gaseous emissions from soil/subsoil by introducing indicator “Gas Screening Value - GSV” product of high gas concentrations measured in borehole (CH4 and CO2) and measured flow (liters per hour). According to the values of this indicator of risk may evolve at a very low (GSV<0,07) up to one very large (GSV >70) on a scale of 6 levels of risk. Applying the methodology for locations chosen as case studies allowed the identification and risk assessment of gaseous emissions from soil / subsoil in areas near potential sources and develop protective measures must be taken in case the area would in future residential destination.
Volume II

International Symposium "The Environment and the Industry" SIMI
ISSN: (on-line)2457-8371
L 1843-5831
Appears in Collections:SIMI 2011

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