Abstract

JARAMILLO ROJAS, Ana Catalina  and  TORO GOMEZ, María Victoria. ESTIMATED OF INTAKE FRACTION OF PRIMARY AIR POLLUTANTS IN MEDELLÍN CITY. Rev. Int. Contam. Ambient [online]. 2020, vol.36, n.3, pp.623-643.  Epub May 04, 2021. ISSN 0188-4999.  https://doi.org/10.20937/rica.53417.

Intake fraction was estimated for measured pollutants in Medellín city: suspended particulates (PM10 and PM2.5), carbon monoxide (CO) and nitrogen oxides (NOx). The applicable method for primary pollutants was used, according to the existing air quality data in terms of emissions and concentrations, as a factor that can be used in the evaluation of the impact on human health due to the sources of air pollution. The data of emissions, attributable exposure concentration, amount population and breathing rates were processed for calculation. Given the importance of the spatial and temporal relationship of the variables, all data were from 2015, the last period in which the inventory of atmospheric emissions was updated. Areas of spatial representativeness were considered, obtaining cells with a CSF greater than 0.9 in Politécnico Jaime Isaza Cadavid (MED-PJIC) (PM10 and CO) and Universidad Nacional Núcleo el Volador (MED-UNNV) (PM2.5 and NOx) stations. Yearly averages of the intake fraction were: 475 and 29 ppm for PM10 and CO, respectively, at MED-PJIC station, and 151 and 64 ppm for PM2.5 and NOx, respectively, at MED-UNNV station. The intake fraction values were analyzed too by weighted respiration rates by age groups, and by hourly, daily, monthly and daily weekday averages of concentration and pollutant emission values.

Keywords : spatial representativeness; exposed population; environmental impact.

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