نتایج جستجو برای: suspended particulate matter

تعداد نتایج: 247128  

Journal: :Pneumonologia i alergologia polska 2015
Raj Kumar Jitendra K Nagar Nitin Goel Pawan Kumar Alka S Kushwah Shailendra N Gaur

INTRODUCTION Several studies in developed countries have shown association between indoor air pollution and asthma in children. The present research was undertaken to study this association at Delhi, India. MATERIAL AND METHODS This study took place at Delhi, capital of India. Eight locations based on the source of pollution such as industrial, residential and villages were included. Recordin...

Journal: :Environmental monitoring and assessment 2006
C P Kaushik Khaiwal Ravindra Krishan Yadav Surender Mehta A K Haritash

Considering the mounting evidences of the effects of air pollution on health, the present study was undertaken to assess the ambient air quality status in the fast growing urban centres of Haryana state, India. The samples were collected for total suspended particulate matter (TSPM), respirable suspended particulate matter (PM(10)), sulfur dioxide (SO(2)), and oxides of nitrogen (NO(2)) during ...

2013
Maha Ahmed Mohamed Abdallah

The distribution of heavy metals in El-Mex Bay located in Northern Egypt was studied. Eight metals (Cd, Cr, Co, Cu, Zn, Pb, Mn and Fe) were determined in water, Suspended Particulate Matter (SPM) and sediments. The Bay presents higher metal concentrations in aqueous Cd, Co and Pb are above the chronic freshwater quality criteria for aquatic life. Most of the dissolved trace metals displayed a n...

2016
Nayana Vijayaraghavan Gayathri S Mohan

The pattern of economic growth that we are adopting is increasingly associated with environmental pollution. It is clear that in the developing or developed countries increased mechanization, transportation, populations, etc. causes air pollution which is a major and effective environmental problem. Present study focuses on analysis of air pollution in Kannur city of Kerala. In this study, pred...

2012
P. Balashanmugam A. R. Ramanathan V. Nehru kumar

During the summer of 2009, concentrations of oxides of nitrogen (NOx), oxides of sulphur (SOx), suspended particulate matter (SPM) and carbon monoxide (CO) were collected over successive periods of about 8 hour at eight sites. High volume air sampler was used to measure the concentration of oxides of nitrogen (NOx), oxides of sulphur (Sox), suspended particulate matter (SPM) and CO monitor was ...

2013
Nahar Singh Tarushee Ahuja Vijay Narain Ojha Daya Soni S Swarupa Tripathy Ivo Leito

As a result of rapid industrialization several chemical forms of organic and inorganic mercury are constantly introduced to the environment and affect humans and animals directly. All forms of mercury have toxic effects; therefore accurate measurement of mercury is of prime importance especially in suspended particulate matter (SPM) collected through high volume sampler (HVS). In the quantifica...

2011
P. López S. A. Brandsma P. E. G. Leonards J. de Boer

With more stringent legislation on brominated flame retardants, it is expected that increasing amounts of substitutes would replace polybrominated diphenylethers (PBDEs). Therefore, the development and optimization of analytical methodologies that allow their identification and quantification are of paramount relevance. This work describes the optimization of an analytical procedure to determin...

Journal: :Environmental toxicology and chemistry 2013
Emily Parry Thomas M Young

Although the freely dissolved form of hydrophobic organic chemicals may best predict aquatic toxicity, differentiating between dissolved and particle-bound forms is challenging at environmentally relevant concentrations for compounds with low toxicity thresholds such as pyrethroid insecticides. The authors investigated the distribution of pyrethroids among 3 forms: freely dissolved, complexed w...

2018

In recent years, the dirt pick up problem and loss quality of brightness of traffic marking paints have widely attracted municipal authorities’ attention. Reflective traffic paints and road marking are some of the most technologically advanced pieces of safety and traffic signs that should be there to have safe streets [1-5]. The most important problem regarding with today’s traffic marking pai...

2018

In recent years, the dirt pick up problem and loss quality of brightness of traffic marking paints have widely attracted municipal authorities’ attention. Reflective traffic paints and road marking are some of the most technologically advanced pieces of safety and traffic signs that should be there to have safe streets [1-5]. The most important problem regarding with today’s traffic marking pai...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید