نتایج جستجو برای: whereby environmental pollution may decline

تعداد نتایج: 2146987  

Journal: :desert 2014
mahdieh ebrahimi

in this research a pot experiment was carried out to investigate the remediation ability of e. camaldulensis dehnh inlead-zinc (pb-zn) contaminated soil. the study also investigated the effects of ethylenediaminetetraacetic acid(edta) and diethylenetrinitrilopentaacetic acid (dtpa) on the phytoremediation efficiency of the plant species, andharvest time as a suitable dose of chelating agents wa...

Journal: :ecopersia 2015
mohammad sayadi mohammad rezaei omolbanin rashki ghaleno khosro afsari nayerh poormollaeib

thechah nimeh reservoirs of sistan is as one of the main water sources of zabol city used for drinking, agriculture, industry and livestock purposes. this study aimed to determine the contribution of the natural and concentration factors of heavy metals such as cd, pb and cu in sediment of chah nimeh of sistan. the concentrations of heavy metals in surface sediments were studied in six stations...

Journal: :international journal of environmental research 0
j. chen school of environment, jiangsu university, zhenjiang, 212013, china w. huang school of environment, jiangsu university, zhenjiang, 212013, china j. han school of environment, jiangsu university, zhenjiang, 212013, china sh. cao school of materials science and engineering, jiangsu university, zhenjiang, 212013, china

the continuous addition of industrial, municipal, and agricultural effluents to the environment has led to a great increase of toxic pollutants. it is well known that these pollutants are hazardous to animals, plants, microorganisms, and other living organisms including humans. as a result, effective technologies should be developed to remove these contaminants. biological remediation, as an ec...

Journal: :مدیریت خاک و تولید پایدار 0
یاسر صفری دانشگاه زنجان محمد امیر دلاور دانشگاه زنجان عیسی اسفندیارپور بروجنی دانشگاه ولیعصر (عج) رفسنجان محمدحسن صالحی دانشگاه شهرکرد حمیدرضا اولیایی دانشگاه یاسوج

abstractbackground and objectives: considering progressive growth of industry and technology, the accumulation of environmental contaminants, especially heavy metals (hms) in the soil is of increasing worldwide concern about the probable soil pollution risks. the perception of pollutants spatial distribution pattern and recognition of factors which control this pattern and identification of pro...

2011
Kristie M. Ellickson Sarah M. Sevcik Shelley Burman Steven Pak Frank Kohlasch Gregory C. Pratt

In 2008, the statute authorizing the Minnesota Pollution Control Agency (MPCA) to issue air permits was amended to include a unique requirement to analyze and consider "cumulative levels and effects of past and current environmental pollution from all sources on the environment and residents of the geographic area within which the facility's emissions are likely to be deposited." Data describin...

2013
G. Brooke Anderson Michelle L. Bell Roger D. Peng

BACKGROUND Environmental health research employs a variety of metrics to measure heat exposure, both to directly study the health effects of outdoor temperature and to control for temperature in studies of other environmental exposures, including air pollution. To measure heat exposure, environmental health studies often use heat index, which incorporates both air temperature and moisture. Howe...

2012
Elizabeth Hoover Katsi Cook Ron Plain Kathy Sanchez Vi Waghiyi Pamela Miller Renee Dufault Caitlin Sislin David O. Carpenter

BACKGROUND Indigenous American communities face disproportionate health burdens and environmental health risks compared with the average North American population. These health impacts are issues of both environmental and reproductive justice. OBJECTIVES In this commentary, we review five indigenous communities in various stages of environmental health research and discuss the intersection of...

Journal: :Environmental Health Perspectives 1977
V H Freed C T Chiou R Haque

In the manufacture and use of the several thousand chemicals employed by technological societies, portions of these chemicals escape or are intentionally introduced into the environment. The behavior, fate, and to some extent the effects produced by these chemicals are a result of a complex interaction of the properties of the chemical with the various processes governing transport, degradation...

2011
Rema Hanna Paulina Oliva Maria Teresa Garrido Luisa Soto Asim Khwaja Peter Kuhn Shelly Lundberg

Moderate effects of pollution on health may exert an important influence on labor market decisions. We exploit exogenous variation in pollution due to the closure of a large refinery in Mexico City to understand how pollution impacts labor supply. The closure led to an 8 percent decline in pollution in the surrounding neighborhoods. We find that a one percent increase in sulfur dioxide results ...

Journal: :The Future of children 1995
C F Bearer

In policymaking on environmental health, it is often assumed that the entire population is exposed to and reacts to environmental contaminants in a similar manner. However, this assumption is misguided, especially where children are concerned. This article presents the scientific basis for the impacts of the environment on children, showing how children are different from adults in the ways in ...

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