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PCDD/PCDF and dl-PCB in the ambient air of a tropical Andean city: passive and active sampling measurements near industrial and vehicular pollution sources.
Sci Total Environ. 2014 Sep 01; 491-492:67-74.ST

Abstract

Concentration gradients were observed in gas and particulate phases of PCDD/F originating from industrial and vehicular sources in the densely populated tropical Andean city of Manizales, using passive and active air samplers. Preliminary results suggest greater concentrations of dl-PCB in the mostly gaseous fraction (using quarterly passive samplers) and greater concentrations of PCDD/F in the mostly particle fraction (using daily active samplers). Dioxin-like PCB predominance was associated with the semi-volatility property, which depends on ambient temperature. Slight variations of ambient temperature in Manizales during the sampling period (15°C-27°C) may have triggered higher concentrations in all passive samples. This was the first passive air sampling monitoring of PCDD/F conducted in an urban area of Colombia. Passive sampling revealed that PCDD/F in combination with dioxin-like PCB ranged from 16 WHO-TEQ2005/m(3) near industrial sources to 7 WHO-TEQ2005/m(3) in an intermediate zone-a reduction of 56% over 2.8 km. Active sampling of particulate phase PCDD/F and dl-PCB were analyzed in PM10 samples. PCDD/F combined with dl-PCB ranged from 46 WHO-TEQ2005/m(3) near vehicular sources to 8 WHO-TEQ2005/m(3) in the same intermediate zone, a reduction of 83% over 2.6 km. Toxic equivalent quantities in both PCDD/F and dl-PCB decreased toward an intermediate zone of the city. Variations in congener profiles were consistent with variations expected from nearby sources, such as a secondary metallurgy plant, areas of concentrated vehicular emissions and a municipal solid waste incinerator (MSWI). These variations in congener profile measurements of dioxins and dl-PCBs in passive and active samples can be partly explained by congener variations expected from the various sources.

Authors+Show Affiliations

Hydraulic Engineering and Environmental Research Group, Universidad Nacional de Colombia Sede Manizales, Cra 27 64-60 Bloque H Palogrande, Manizales, Colombia. Electronic address: jpcortesa@unal.edu.co.Hydraulic Engineering and Environmental Research Group, Universidad Nacional de Colombia Sede Manizales, Cra 27 64-60 Bloque H Palogrande, Manizales, Colombia.Laboratory of Dioxins, Environmental Chemistry Department, IDAEA-CSIC, Jordi Girona 18-26, Barcelona 08034, Spain.Laboratory of Dioxins, Environmental Chemistry Department, IDAEA-CSIC, Jordi Girona 18-26, Barcelona 08034, Spain.Laboratory of Dioxins, Environmental Chemistry Department, IDAEA-CSIC, Jordi Girona 18-26, Barcelona 08034, Spain.Hydraulic Engineering and Environmental Research Group, Universidad Nacional de Colombia Sede Manizales, Cra 27 64-60 Bloque H Palogrande, Manizales, Colombia.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

24555963

Citation

Cortés, J, et al. "PCDD/PCDF and dl-PCB in the Ambient Air of a Tropical Andean City: Passive and Active Sampling Measurements Near Industrial and Vehicular Pollution Sources." The Science of the Total Environment, vol. 491-492, 2014, pp. 67-74.
Cortés J, González CM, Morales L, et al. PCDD/PCDF and dl-PCB in the ambient air of a tropical Andean city: passive and active sampling measurements near industrial and vehicular pollution sources. Sci Total Environ. 2014;491-492:67-74.
Cortés, J., González, C. M., Morales, L., Abalos, M., Abad, E., & Aristizábal, B. H. (2014). PCDD/PCDF and dl-PCB in the ambient air of a tropical Andean city: passive and active sampling measurements near industrial and vehicular pollution sources. The Science of the Total Environment, 491-492, 67-74. https://doi.org/10.1016/j.scitotenv.2014.01.113
Cortés J, et al. PCDD/PCDF and dl-PCB in the Ambient Air of a Tropical Andean City: Passive and Active Sampling Measurements Near Industrial and Vehicular Pollution Sources. Sci Total Environ. 2014 Sep 1;491-492:67-74. PubMed PMID: 24555963.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - PCDD/PCDF and dl-PCB in the ambient air of a tropical Andean city: passive and active sampling measurements near industrial and vehicular pollution sources. AU - Cortés,J, AU - González,C M, AU - Morales,L, AU - Abalos,M, AU - Abad,E, AU - Aristizábal,B H, Y1 - 2014/02/18/ PY - 2013/11/15/received PY - 2014/01/29/revised PY - 2014/01/29/accepted PY - 2014/2/22/entrez PY - 2014/2/22/pubmed PY - 2014/12/20/medline KW - Dioxin like-PCB (dl-PCB) KW - Particulate matter less than 10 μm (PM(10)) KW - Passive air sampling (PAS) KW - Persistent organic pollutants (POPs) KW - Polychlorinated dibenzo-p-dioxin (PCDD) KW - Polychlorinated dibenzofuran (PCDF) SP - 67 EP - 74 JF - The Science of the total environment JO - Sci Total Environ VL - 491-492 N2 - Concentration gradients were observed in gas and particulate phases of PCDD/F originating from industrial and vehicular sources in the densely populated tropical Andean city of Manizales, using passive and active air samplers. Preliminary results suggest greater concentrations of dl-PCB in the mostly gaseous fraction (using quarterly passive samplers) and greater concentrations of PCDD/F in the mostly particle fraction (using daily active samplers). Dioxin-like PCB predominance was associated with the semi-volatility property, which depends on ambient temperature. Slight variations of ambient temperature in Manizales during the sampling period (15°C-27°C) may have triggered higher concentrations in all passive samples. This was the first passive air sampling monitoring of PCDD/F conducted in an urban area of Colombia. Passive sampling revealed that PCDD/F in combination with dioxin-like PCB ranged from 16 WHO-TEQ2005/m(3) near industrial sources to 7 WHO-TEQ2005/m(3) in an intermediate zone-a reduction of 56% over 2.8 km. Active sampling of particulate phase PCDD/F and dl-PCB were analyzed in PM10 samples. PCDD/F combined with dl-PCB ranged from 46 WHO-TEQ2005/m(3) near vehicular sources to 8 WHO-TEQ2005/m(3) in the same intermediate zone, a reduction of 83% over 2.6 km. Toxic equivalent quantities in both PCDD/F and dl-PCB decreased toward an intermediate zone of the city. Variations in congener profiles were consistent with variations expected from nearby sources, such as a secondary metallurgy plant, areas of concentrated vehicular emissions and a municipal solid waste incinerator (MSWI). These variations in congener profile measurements of dioxins and dl-PCBs in passive and active samples can be partly explained by congener variations expected from the various sources. SN - 1879-1026 UR - https://www.unboundmedicine.com/medline/citation/24555963/PCDD/PCDF_and_dl_PCB_in_the_ambient_air_of_a_tropical_Andean_city:_passive_and_active_sampling_measurements_near_industrial_and_vehicular_pollution_sources_ DB - PRIME DP - Unbound Medicine ER -