نتایج جستجو برای: atmospheric pollutants

تعداد نتایج: 101675  

2010
J Vicente Paulo Lélita Santos Graça Fernandes

Breast cancer incidence is higher in urban areas and industrialized countries, rather than in less developed ones [1]. The etiology is probably multifactorial and lifestyle and environmental factors account for 73% of cases [2]. The present study analyzes the eventual relationship between environmental pollutants exposure and population density and the risk of developing breast cancer. It conce...

2004
S. Henne M. Furger S. Nyeki S. H. Prévôt

Net vertical air mass export by thermally driven flows from the atmospheric boundary layer (ABL) to the free troposphere (FT) above deep Alpine valleys was investigated. The vertical export of pollutants above mountainous terrain is presently poorly represented in global chemistry transport models (GCTMs) and needs to be quantified. Air mass budgets were calculated using aircraft observations o...

2013
Steven J. Smith Raquel A. Silva Vaishali Naik Yuqiang Zhang Zachariah Adelman Meridith M. Fry Susan Anenberg LarryW. Horowitz Jean-Francois Lamarque

Actions to reduce greenhouse gas (GHG) emissions often reduce co-emitted air pollutants, bringing co-benefits for air quality and human health. Past studies typically evaluated near-term and local co-benefits, neglecting the long-range transport of air pollutants, long-term demographic changes, and the influence of climate change on air quality. Here we simulate the co-benefits of global GHG re...

Journal: :Chemosphere 2009
Andrea Gambaro Marta Radaelli Rossano Piazza Angela Maria Stortini Daniele Contini Franco Belosi Roberta Zangrando Paolo Cescon

Atmospheric transport is an important route by which pollutants are conveyed from the continents to both coastal and open sea. The role of aerosol deposition in the transport of polycyclic aromatic hydrocarbons (PAHs), polychlorobiphenyls (PCBs) and polybromodiphenyls ethers (PBDEs) to water and soil systems has been evaluated by measuring their concentrations in wet and dry depositions to the ...

2014
Bin Zhou Bin Zhao

It is difficult to evaluate and compare interventions for reducing exposure to air pollutants, including polycyclic aromatic hydrocarbons (PAHs), a widely found air pollutant in both indoor and outdoor air. This study presents the first application of the Monte Carlo population exposure assessment model to quantify the effects of different intervention strategies on inhalation exposure to PAHs ...

2016
Ying Zhang Zhihong Liu Xiaotong Lv Yang Zhang Jun Qian Giovanni Pitari

A heavy air pollution event occurred in Chengdu between 7 May 2014 and 8 May 2014. The present study established tracer sources based on HJ-1 satellite data, micropulse light detection and ranging (LiDAR) remote sensing data, and backward trajectories simulated using the hybrid single-particle Lagrangian integrated trajectory (HYSPLIT) model. Additionally, the present study analyzed the diffusi...

2016
Tichun Wang Hongyang Zhang Lei Tian Jianfen Liu Qiming Wang

As is known to all, human's daily life can not be separated from the atmospheric environment, and the quality of human life is directly affected by the quality of the atmospheric environment. In recent decades, the rapid development of China's economy, industry, transportation and other industries cause that concentration of the hazardous material in the air is much higher than the identificati...

2008
Shawn P. Urbanski Wei Min Hao

Wildland fires are major sources of trace gases and aerosol, and these emissions are believed to significantly influence the chemical composition of the atmosphere and the earth’s climate system. The wide variety of pollutants released by wildland fire include greenhouse gases, photochemically reactive compounds, and fine and coarse particulate matter. Through direct emissions and secondary che...

2016
Tao Li James D. Blande Jarmo K. Holopainen

Plant-emitted volatile organic compounds (VOCs) play important roles in plant-insect interactions. Atmospheric pollutants such as ozone (O3) can react with VOCs and affect the dynamics and fidelity of these interactions. However, the effects of atmospheric degradation of plant VOCs on plant-insect interactions remains understudied. We used a system comprising Brassica oleracea subsp. capitata (...

2015
Sergio Jarque Laia Quirós Joan O. Grimalt Eva Gallego Jordi Catalan Reinhard Lackner Benjamin Piña

Human activity has spread trace amounts of chemically stable endocrine-disrupting pollutants throughout the biosphere. These compounds have generated a background level of estrogenic activity that needs to be assessed. Fish are adequate sentinels for feminization effects as male specimens are more sensitive than humans to exogenous estrogenic compounds. High mountain lakes, the most distant env...

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