نتایج جستجو برای: chemical safety

تعداد نتایج: 632559  

Journal: :Environment international 2003
David Santillo Paul Johnston

Few would now deny that the use of organobromine compounds to achieve fire retardancy in a diverse array of products and materials has led to contamination of the ecosphere on a widespread scale. This environmental prevalence and persistence of the brominated flame retardants, coupled with growing evidence of their potential for harm, present all too familiar parallels with the previous generat...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده علوم پایه 1391

one of the applications of nanotechnology is use of carbon nanotubes for the targeted delivery of drug molecules. to demonstrate the physical and chemical properties of biomolecules and identify new material of drug properties, the interaction of carbon nanotubes (cnts) with biomolecules is a subject of many investigations. cnts is a synthetic compound with extraordinary mechanical, thermal, el...

ژورنال: سلامت کار ایران 2016

Background and aims: Transportation of hazardous chemicals is one of the main phases in chemical life cycle which could endanger the safety of people and facilities that are located in the tanker traffic roads. The aim of this study was to assess risk of chemical transportation in the pass leading to  to Amirkabir terminal in Shiraz city. Methods: In this cross sectional study, risks of...

2014
Wei Zhang Dong-Sheng Zhang Li-Xin Wu Hong-Zhi Wang Brian Agnew

Large-scale longwall mining of shallow coal seams may cause mining-induced fractures that can project completely through to the surface. This could lead to a series of mine safety and environmental issues, further deteriorating the already fragile ecological environment in the Western mining areas in China. Therefore, an accurate and effective understanding of the spatiotemporal evolution law o...

Journal: :Journal of agricultural safety and health 2001
S R Browning S C Westneat R Szeluga

This article documents the extent of children's involvement in tractor operations among a representative sample of Kentucky children living and working on family farms. Specifically, we describe children's exposures to tractor-related work activities, profile their use of the tractor (number of days worked), and assess compliance with generally recommended safety measures, such as using tractor...

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