نتایج جستجو برای: pollution indexes

تعداد نتایج: 92531  

2007
Sarva M. Praveena Miroslav Radojevic H. Abdullah

The objectives of this study are to use different types of indexes to assess the current pollution status in Mengkabong lagoon and select the best index to describe the Mengkabong sediment quality. The indexes used in this study were Enrichment Factor (EF), Geo-accumulation Index (Igeo), Pollution Load Index (PLI) and Marine Sediment Pollution Index (MSPI). Different indexes give diverse status...

2015
Elena A. Erofeeva

Various plant indexes are used or recommended for bioindication. However, the nonmonotonic dose-response dependences (hormesis and paradoxical effects) of these indexes are insufficiently explored upon exposure to pollution. We studied the dependences of these Betula pendula indexes on the intensity of motor traffic pollution. Regression analysis did not reveal any dependence of chlorophyll and...

Journal: :iau international journal of social sciences 2013
mehrdad nababaksh hashem aram mehdi mokhtarpour

nowadays, most of the cities, especially metropolises of developing countries are engaged with environmental issues like air and water pollution, waste increase and etc., that lead to the environmental destruction. meanwhile sustainable urban development, provides the balance between development and the environment, and supplies the current generation needs while keep its eyes on the next gener...

Journal: :international journal of epidemiology research 0
mokhtar soheilyzad health education dept., hamadan university of medical sciences, hamadan, i.r. iran salman khazaei epidemiology dept., hamadan university of medical sciences, hamadan, i.r. iran rizan rezaeian social determinants of health research center , kurdistan university of medical sciences, sanandaj, i.r. iran mahmood hajipour student research committee, epidemiology dept., shahid beheshti university of medical sciences, tehran, i.r. iran shahab rezaeian social determinants of health research center , kurdistan university of medical sciences, sanandaj, i.r. iran

background and aims: air pollution is one of the health problems worldwide. previous epidemiological studies have investigated the impacts of air pollution on respiratory and cardiovascular diseases. the aim of this study was to determine the associations between air pollution levels and different health indicators among world countries. methods: this ecological study was performed in 2013 by u...

Hashem Aram Mehdi Mokhtarpour, Mehrdad Nababaksh

Nowadays, Most of the cities, especially metropolises of developing countries are engaged with environmental issues like air and water pollution, waste increase and etc., that lead to the environmental destruction. Meanwhile sustainable urban development, provides the balance between development and the environment, and supplies the current generation needs while keep its eyes on the next gener...

Journal: :iranian journal of health sciences 0
meisam yousefi environmental engineering, kn toosi, university of technology majid ehteshami head and assistant professor, environmental eng. dept. kn toosi univ. of technology, tehran, iran amir sadrnejad professor, kn toosi, university of technology

background and purpose: in the process of rapid urbanization and industrialization in developing countries, environmental pollution is a major concern. one of the fastest growing problems of environmental pollution is an excessive intake of lead in urban soils. lead concentrations in urban soil may result from human activities such as vehicle emissions and industrial activities. this study aime...

2016
Abderrahmane Sadiq Abdelaziz El Fazziki Jamal Ouarzazi Mohamed Sadgal

This paper presents an integrated and adaptive problem-solving approach to control the on-road air quality by modeling the road infrastructure, managing traffic based on pollution level and generating recommendations for road users. The aim is to reduce vehicle emissions in the most polluted road segments and optimizing the pollution levels. For this we propose the use of historical and real ti...

Background and aims: Air pollution is one of the health problems worldwide. Previous epidemiological studies have investigated the impacts of air pollution on respiratory and cardiovascular diseases. The aim of this study was to determine the associations between air pollution levels and different health indicators among world countries. Methods: This eco...

2005
Vladimir Dyo Cecilia Mascolo

Sensor networks have opened new horizons and opportunities for a variety of environmental monitoring, surveillance and healthcare applications. One of the major tasks of sensor networks is the distributed collection and processing of sensor readings over extended periods of time. We propose an energyefficient hierarchical indexing approach for spatial data in sensor networks. It allows roaming ...

A. Krika F. Krika

Mencha River is one of the largest river in the region of Jijel, Algeria. The human activities such as urban discharges, industrial, agricultural and livestock have significant effects on the quality of water. Because of its importance in the agricultural activities and dense population residing at its banks, the river faces several challenges from various anthropogenic activities. This situati...

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