نتایج جستجو برای: VOCs pollution

تعداد نتایج: 72930  

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2010
Ikuo Ueta Yoshihiro Saito Kenta Teraoka Tomoya Miura Kiyokatsu Jinno

Third-hand smoking was quantitatively evaluated with a polymer-packed sample preparation needle and subsequent gas chromatography-mass spectroscopy analysis. The extraction needle was prepared with polymeric particles as the extraction medium, and successful extraction of typical gaseous volatile organic compounds (VOCs) was accomplished with the extraction needle. For an evaluation of this new...

Journal: :Environment international 2014
Taicheng An Yong Huang Guiying Li Zhigui He Jiangyao Chen Chaosheng Zhang

Pollution profiles of typical volatile organic compounds (VOCs) emitted during dismantling of various printed circuit board assemblies (PCBAs) of e-wastes using different methods were comparatively investigated in the real e-waste dismantling workshops in South China in April 2013. Similar pollution profiles and concentrations of VOCs were observed between dismantling mobile phone and hard disk...

2017
Hao Zhang Qingzhu Zhang Yujie Zhang Weiqi Zhang Xuezhong Wang Fahe Chai Jian Gao Ting Yang Yizhen Chen Qi Cheng Kimitaka Kawamura

Atmospheric volatile organic compounds (VOCs) measurement was carried out using gas chromatography-flame ionization detector (GC-FID) technique (Airmo VOCs online analyzer) in a typical urban area in Beijing from April 2014 to January 2015. Ambient levels, variation characteristics and influential factors contributing to the formation of near-ground-ozone and secondary organic aerosols as well ...

2017

This manuscript presents the on-line measurements of 24 volatile organic compounds (VOCs) during a field campaign at a background site of Cyprus in March 2015. Based on the measurements, the temporal variability of VOCs was investigated. Six major sources and corresponding origins of VOCs were addressed by time series analysis, PMF receptor model, as well as CPF and CF. Furthermore, the influen...

2012
DEEPTI SRIVASTAVA

When speaking about harm to the human body in the term of pollution, indoor pollution is equally harmful as the outdoor pollution. Volatile Organic Compounds contribute to the toxic oxidants which are harmful to the ecosystem, human health and atmosphere. Volatile organic compounds (VOCs) are major group of air pollutants which play critical role in atmospheric chemistry. It contributes to toxi...

In the Persian Gulf region, conditions are highly favorable for ozone air pollution and the region is a hot spot of photochemical smog. The vast activities in processing oil and gas play a major role in it. It was found that the elevated concentrations of reactive hydrocarbons co-emitted with nitrogen oxides from Hydrocarbon Processing facilities lead to substantial ozone production. South Pars...

2017
Maryam Sarkhosh AliAkbar Shamsipour Kamyar Yaghmaeian Ramin Nabizadeh Kazem Naddafi Seyed Mohsen Mohseni

BACKGROUND The waste transfer stations (WTSs) is one of the most important factors affecting on environment and human health. This research is aimed to evaluate health risk of VOCs among WTS personnel and provide a model for dispersion of VOCs. The Air Pollution Model (TAPM) is able to simulate WTS emissions dispersion over each town. RESULT GC-MS was used to analysis collected gas samples to...

ژورنال: سلامت و محیط زیست 2017

Background and Objective: During the past few decades, air pollution has been the focus of international attention due to an increase in deaths from air pollution. In this study, Volatile Organic Hydrocarbons (VOCs) and Total Hydrocarbons (THCs) in ambient air of a Petrochemical Complex, Iran, was measured. Also, the relationship between these pollutants and some of their urinary metabolites wa...

2018
Chee-Loon Ng Fuu-Ming Kai Ming-Hui Tee Nicholas Tan Harold F. Hemond

Air pollution exposure causes seven million deaths per year, according to the World Health Organization. Possessing knowledge of air quality and sources of air pollution is crucial for managing air pollution and providing early warning so that a swift counteractive response can be carried out. An optical prototype sensor (AtmOptic) capable of scattering and absorbance measurements has been deve...

Journal: :Journal of environmental management 2010
Sandeep Mudliar Balendu Giri Kiran Padoley Dewanand Satpute Rashmi Dixit Praveena Bhatt Ram Pandey Asha Juwarkar Atul Vaidya

Volatile organic compounds (VOCs) and odorous compounds discharged into the environment create ecological and health hazards. In the recent past, biological waste air treatment processes using bioreactors have gained popularity in control of VOCs and odour, since they offer a cost effective and environment friendly alternative to conventional air pollution control technologies. This review prov...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید