Abstract
ABSTRACT This paper reports the spatial modelling of gaseous emissions from two municipal solid waste dump sites to determine exposure to landfill gases. The AERMOD modelling software and the Mexican Biogas Model were used, with information from nearby meteorological stations for the period 2015–2016. It was observed that, at one of the dump sites, gas emissions reach populated areas, but in concentrations too low to be detected by the olfactory pathway (benzene <5 µg/m3, toluene and xylene <50 µg/m3). At the second dump site, concentrations are greater; there are no population settlements close by. The highest concentrations of benzene, toluene, xylene and hydrogen sulphide are found within, or around, the dump sites, reaching levels greater than 38 μg/m3 for benzene, 770 μg/m3 for toluene and 237 μg/m3 for xylene.
Published Version
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