نتایج جستجو برای: point pollution
تعداد نتایج: 591127 فیلتر نتایج به سال:
This paper presents a multi-criteria based tool for assessing the relative impact of diffuse-source pollution to the Great Barrier Reef (GBR) from the river basins draining into the GBR lagoon. The assessment integrates biophysical and ecological data of water quality and pollutant concentrations with socio-economic information pertaining to non-point source pollution and (potential) pollutant ...
The potential impacts of climate-induced changes in air pollution levels and its impacts on population health were investigated. The IPCC scenario (SRES A2) was used to analyse the effects of climate on future PM10 concentrations over Portugal and their impact on short-term population exposure and mortality. The air quality modelling system has been applied with high spatial resolution looking ...
Immigrant Rites of Passage: Urban Settlement, Physical Environmental Quality and Health in Vancouver
This paper sets out, and provides a preliminary test of, the hypothesis of immigrant rites of passage: that immigrant settlement in Canadian cities is associated with a disproportionate burden of exposure to environmental health hazards. We test this hypothesis with the case of Vancouver, one of Canada’s main immigrant gateways, using neighbourhood socioeconomic and air pollution (total suspend...
Live P2P streaming has been widely used in recent years because of its scalability and low costs. At the same time, it meets some new challenges that centralized systems never faced, for example, churn and content pollution. It is the first paper which uses stochastic activity networks (SANs) to model and analyze pushbased live P2P streaming systems from the users’ point of view. The model prov...
Nitrogen dioxide (NO2) is noxious, phototoxic and causes eutrophication. NO2 is one of the major precursors of ground level ozone pollution. Emission rates and emission concentrations of various pollutants from stationary sources of power plant emissions are calculated using Emission Inventory methodologies. Ground level concentrations of Nitrogen oxide (NOx) pollution are predicted by Gaussian...
Survival is one of the most central population measures when the effects of the pollution are studied in natural bird populations. However, only few studies have actually measured rigorous survival estimates on adult birds. In recent years there has been a methodological advance in survival analyses by mark-recapture models. We modelled local survival (including mortality and emigration) with t...
Understanding spatial and temporal variations in river water quality and quantitatively evaluating the trend of changes are important in order to study and efficiently manage water resources. In this study, an analysis of Water Pollution Index (WPI), Daniel Trend Test, Cluster Analysis and Discriminant Analysis are applied as an integrated approach to quantitatively explore the spatial and temp...
Eutrophication is one of the harmful phenomena which affects continental water (rivers, lakes, springs, etc.) due to injection N and P. If it easy manage point source pollution, non-point pollution still represents a challenge. Management practices such as tillage technics, fertilizer management, wetlands appear solutions remove P from runoff water.
noise pollution can be considered as the most important problem of urban environmental management in mega metropolises and urban transportation is the main source of the mentioned problem. this study aims to investigate the amount of traffic noise dose received by traffic policemen in tehran; district 1 municipality. the investigation was conducted during three consecutive months in 2007 in 282...
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