TITLE:
Comparative Analysis of Carbon Monoxide Modeling from Vehicular Sources in Puebla City, México
AUTHORS:
Sthephany Sedeño-Cisneros, María Auxilio Osorio-Lama, Miguel Ángel Valera-Pérez, René Bernardo Elías Cabrera-Cruz
KEYWORDS:
Environmental Pollutants Assessment, Carbon Monoxide, Puebla
JOURNAL NAME:
Journal of Environmental Protection,
Vol.6 No.1,
January
28,
2015
ABSTRACT: The
results of dispersion modeling of carbon monoxide are reported in this paper.
The results of applying the technique of Rapid Assessment of Sources of
Environmental Pollution (RASEP) database and the Air Monitoring State System in
the City of Puebla, México, were employed. Concentrations of carbon monoxide
emitted by cars inferred by RASAP technique with those reported by the
environmental monitoring station “Nymphs”, were compared. The date of 21 June
2005-2010 was selected during the peak hour traffic flow. The dispersion of
carbon monoxide was modeled by software DISPER and SCRI software, in order to
infer the exposure levels of carbon monoxide in the study area. The estimated
and monitored concentrations were evaluated with the Mexican regulations for
population’s health protection. Regarding the dispersion model, SCRI was discarded
for the target validation because it only allows modeling on specific areas.
Moreover, the modeling software allowed DISPER simulations with linear sources
of car exhaust, so this advantage is considered appropriate to continue using
this program. Both estimates obtained by RASEP, as modeled by DISPER and
recorded by the monitoring system exceed the maximum permissible limits of
NOM-021-SSA1-1993 getting an impermissible for the area of influence of the assessment
monitoring station. The DISPER software has potential use for such evaluations,
but more work is required on the system for their inferences can be validated
by reproducible physical and chemical measurements.