نتایج جستجو برای: pollution intensity

تعداد نتایج: 249745  

2001
A. L. Sutton J. A. Patterson O. L. Adeola B. T. Richert

Recent increased public concern, legislation and environmental regulations have focused on pollution and have created a major threat to the viability and growth of the pork industry. Even though water pollution control has been a major focus of regulations, recent public concerns and lawsuits have revolved around odors from pork operations. Most research has focused on measuring odor and gas in...

2017
Y. Obeng Kwame Nkrumah

In Ghana, about 73% of households rely on solid fuels for cooking. Over 13,000 annual deaths are attributed to exposure to indoor air pollution from inefficient combustion. In this study, assessment of thermal efficiency, emissions and total global warming impact of three cookstoves commonly used in Ghana was completed using IWA water boiling test (WBT) protocol. Statistical averages of three r...

2013
Alexander Y. Bigazzi Miguel A. Figliozzi

The health cost of on-road air pollution exposure is a component of traffic marginal costs that has not previously been assessed. The main objective of this paper is to introduce onroad pollution exposure as an externality of traffic, particularly important during traffic congestion when on-road pollution exposure is highest. Marginal private and external cost equations are developed that inclu...

Journal: :Canadian journal of public health = Revue canadienne de sante publique 2005
Monica E Campbell Qian Li Sarah E Gingrich Ronald G Macfarlane Shouquan Cheng

BACKGROUND Given the importance of physical activity to well-being, there is a need to encourage people to be physically active year-round. At the same time, many people are vulnerable to adverse health effects from air pollution, especially on smog alert days. This study was undertaken to determine when air pollution levels tend to be lowest so that the public can modify strenuous outdoor acti...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده مهندسی مکانیک 1393

اندازه گیری شدت صدا (sound intensity) برای تشخیص منابع نویز در یک مجموعه متراکم از قطعات در حال کار و مرتبط با یکدیگر در خودرو کابردهای فراوانی دارد. خوشبختانه بر اساس تلاشهای محققان [ j.y.chunf] and [f. j. fahy] سیستمی طراحی شده که میتوان بدون استفاده از اتاقک آکوستیک شدت صوت را با دقت خوبی در محیط های آزاد اندازه گیری کرد.

2003
P. B. Lourenço P. Roca J. M. S. Matias C. A. S. Alves

The decay features of thirty-nine monuments built with granite stones and presenting diverse architectural characteristics, date of construction and environment characteristics (including exposition conditions, traffic intensity, etc) are compare in order to discuss decay patterns and susceptibility of granite types applied in architectural works. Decay patterns of biotite-rich medium to fine-g...

1997
Ricardo Sanhueza Manjula Singh Tarhan Feyzioglu Gunnar S. Eskeland Ann E. Harrison

This paper presents evidence on whether multinationals are flocking to developing country "pollution havens". We begin with data from four developing countries, examining the pattern of foreign investment in Mexico, Venezuela, Morocco and Cote d'Ivoire. We find almost no evidence that foreign investors are concentrated in "dirty" sectors. We then examine the behavior of multinationals located i...

Journal: :Environmental science & technology 2014
Dabo Guan Klaus Hubacek Martin Tillotson Hongyan Zhao Weidong Liu Zhu Liu Sai Liang

China is a country with significant but unevenly distributed water resources. The water stressed North stays in contrast to the water abundant and polluted South defining China's current water environment. In this paper we use the latest available data sets and adopt structural decomposition analysis for the years 1992 to 2007 to investigate the driving forces behind the emerging water crisis i...

2014
Usha N. Murthy

The introduction of more stringent pollution regulations, in relation to financial and social pressures for sustainable development, has pressed toward limiting the volumes of industrial and domestic effluents discharged into the environment as well as to increase the efforts within research and development of new or more efficient wastewater treatment technologies. Considering both discharge v...

Journal: :Journal of water and health 2006
Nur Muhammad Anne Morris Hooke

Experimental results are described to evaluate the diffuse pollution profile according to land use in the catchments and street sweeping as a best management practice (BMP). We studied the variation of pollutant concentrations in outfalls discharging runoff from residential, commercial and high-traffic areas and in street sweeping. Pollution profiles varied with the land use in the catchments a...

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