NANOPARTICLES SIZE DISTRIBUTION IN THE EXHAUST EMISSIONS OF DIESEL AND CNG BUSES
Introduction: Motor vehicles are the most important sources of gaseous and particulate matter emission in urban areas with the serious health effects which cause the respiratory and cardiovascular diseases and mortality. Motor vehicles emit a broad range of PM from 0.003 to 10 μm. Materials and meth...
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| Format: | Article |
| Language: | English |
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Tehran University of Medical Sciences
2018-04-01
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| Series: | Journal of Air Pollution and Health |
| Subjects: | |
| Online Access: | https://japh.tums.ac.ir/index.php/japh/article/view/130 |
| _version_ | 1818107649806303232 |
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| author | Ramin Nabizadeh Nodehi Seyed Yaser Hashemi Faramarz Azimi Shima Khorsand |
| author_facet | Ramin Nabizadeh Nodehi Seyed Yaser Hashemi Faramarz Azimi Shima Khorsand |
| author_sort | Ramin Nabizadeh Nodehi |
| collection | DOAJ |
| description | Introduction: Motor vehicles are the most important sources of gaseous and particulate matter emission in urban areas with the serious health effects which cause the respiratory and cardiovascular diseases and mortality. Motor vehicles emit a broad range of PM from 0.003 to 10 μm.
Materials and methods: The exhaust emission of BRT and diesel buses was samples by portable environmental dust monitor, model EDM 107 during summer and winter 2016. ANOVA was applied at a significant level (Pvalue < 0.5) to compare the amount of emitted particles in each season.
Results: The lowest concentration of emission was seen in BRT buses and the average number of particles in every liter of exhaust sample was 776330 ± 40428. The amount of emission from BRT buses in winter was 166217 ± 971870. There is a significant difference between total emissions of nanoparticles releasing by diesel and BRT buses in each season, but there isn’t any significant difference between the emissions of nanoparticles releasing by diesel buses in summer and winter.
Conclusions: There was the high emission of particles emitted by diesel buses in both seasons. Since the impacts of particulate matters on health should be considered in Tehran, planning the best locations for bus terminals and also monitoring these places continuously are recommended. |
| first_indexed | 2024-12-11T02:02:50Z |
| format | Article |
| id | doaj.art-52afb4ccb4ad46cc89e25a252076752b |
| institution | Directory Open Access Journal |
| issn | 2476-3071 |
| language | English |
| last_indexed | 2024-12-11T02:02:50Z |
| publishDate | 2018-04-01 |
| publisher | Tehran University of Medical Sciences |
| record_format | Article |
| series | Journal of Air Pollution and Health |
| spelling | doaj.art-52afb4ccb4ad46cc89e25a252076752b2022-12-22T01:24:27ZengTehran University of Medical SciencesJournal of Air Pollution and Health2476-30712018-04-0124NANOPARTICLES SIZE DISTRIBUTION IN THE EXHAUST EMISSIONS OF DIESEL AND CNG BUSESRamin Nabizadeh Nodehi0Seyed Yaser Hashemi1Faramarz Azimi2Shima Khorsand3Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, IranDepartment of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, IranDepartment of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, IranCenter for Air Pollution Research (CAPR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, IranIntroduction: Motor vehicles are the most important sources of gaseous and particulate matter emission in urban areas with the serious health effects which cause the respiratory and cardiovascular diseases and mortality. Motor vehicles emit a broad range of PM from 0.003 to 10 μm. Materials and methods: The exhaust emission of BRT and diesel buses was samples by portable environmental dust monitor, model EDM 107 during summer and winter 2016. ANOVA was applied at a significant level (Pvalue < 0.5) to compare the amount of emitted particles in each season. Results: The lowest concentration of emission was seen in BRT buses and the average number of particles in every liter of exhaust sample was 776330 ± 40428. The amount of emission from BRT buses in winter was 166217 ± 971870. There is a significant difference between total emissions of nanoparticles releasing by diesel and BRT buses in each season, but there isn’t any significant difference between the emissions of nanoparticles releasing by diesel buses in summer and winter. Conclusions: There was the high emission of particles emitted by diesel buses in both seasons. Since the impacts of particulate matters on health should be considered in Tehran, planning the best locations for bus terminals and also monitoring these places continuously are recommended.https://japh.tums.ac.ir/index.php/japh/article/view/130Nanoparticlesdiesel busesBRTsize distribution |
| spellingShingle | Ramin Nabizadeh Nodehi Seyed Yaser Hashemi Faramarz Azimi Shima Khorsand NANOPARTICLES SIZE DISTRIBUTION IN THE EXHAUST EMISSIONS OF DIESEL AND CNG BUSES Journal of Air Pollution and Health Nanoparticles diesel buses BRT size distribution |
| title | NANOPARTICLES SIZE DISTRIBUTION IN THE EXHAUST EMISSIONS OF DIESEL AND CNG BUSES |
| title_full | NANOPARTICLES SIZE DISTRIBUTION IN THE EXHAUST EMISSIONS OF DIESEL AND CNG BUSES |
| title_fullStr | NANOPARTICLES SIZE DISTRIBUTION IN THE EXHAUST EMISSIONS OF DIESEL AND CNG BUSES |
| title_full_unstemmed | NANOPARTICLES SIZE DISTRIBUTION IN THE EXHAUST EMISSIONS OF DIESEL AND CNG BUSES |
| title_short | NANOPARTICLES SIZE DISTRIBUTION IN THE EXHAUST EMISSIONS OF DIESEL AND CNG BUSES |
| title_sort | nanoparticles size distribution in the exhaust emissions of diesel and cng buses |
| topic | Nanoparticles diesel buses BRT size distribution |
| url | https://japh.tums.ac.ir/index.php/japh/article/view/130 |
| work_keys_str_mv | AT raminnabizadehnodehi nanoparticlessizedistributionintheexhaustemissionsofdieselandcngbuses AT seyedyaserhashemi nanoparticlessizedistributionintheexhaustemissionsofdieselandcngbuses AT faramarzazimi nanoparticlessizedistributionintheexhaustemissionsofdieselandcngbuses AT shimakhorsand nanoparticlessizedistributionintheexhaustemissionsofdieselandcngbuses |