The influence of the open burning of agricultural biomass and forest fires in Thailand on the carbonaceous components in size-fractionated particles
| Autor: | Thaneeya Chetiyanukornkul, Wongpun Limpaseni, Worradorn Phairuang, Panwadee Suwattiga, Fumikazu Ikemori, Surapa Hongtieab, Masami Furuuchi, Mitsuhiko Hata |
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| Rok vydání: | 2019 |
| Předmět: |
Crops
Agricultural Satellite Imagery 010504 meteorology & atmospheric sciences Health Toxicology and Mutagenesis chemistry.chemical_element 010501 environmental sciences Toxicology Aethalometer Atmospheric sciences 01 natural sciences Fires Wildfires Diesel fuel Soot Air Pollution Biomass Cities Particle Size Emission inventory Biomass burning Vehicle Emissions 0105 earth and related environmental sciences Total organic carbon Air Pollutants Residue (complex analysis) Size fractionated Agriculture General Medicine Thailand Pollution Carbon chemistry Environmental science Particulate Matter Environmental Monitoring |
| Zdroj: | Environmental Pollution. 247:238-247 |
| ISSN: | 0269-7491 |
| Popis: | Size-segregated ambient particles down to particles smaller than 0.1 μm (PM0.1) were collected during the year 2014–2015 using cascade air samplers with a PM0.1 stage, at two cities in Thailand, Bangkok and Chiang Mai. Their characteristics and seasonal behavior were evaluated based on the thermal/optical reflectance (IMPROVE_TOR) method. Diagnostic indices for their emission sources and the black carbon (BC) concentration were assessed using an aethalometer and related to the monthly emission inventory (EI) of particle-bound BC and organic carbon (OC) in order to investigate the contribution of agricultural activities and forest fires as well as agro-industries in Thailand. Monthly provincial EIs were evaluated based on the number of agricultural crops produced corresponding to field residue burning and the use of residues as fuel in agro-industries, and also on the number of hot spots from satellite images corresponding to the areas burned by forest fires. The ratio of char-EC/soot-EC describing the relative influence of biomass combustion to diesel emission was found to be in agreement with the EI of BC from biomass burning in the size range |
| Databáze: | OpenAIRE |
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