نتایج جستجو برای: degradation of environment

تعداد نتایج: 21204425  

Journal: :Journal of Agricultural and Food Chemistry 1993

Journal: :محیط شناسی 0
علیرضا صفاهیه دانشگاه علوم وفنون دریایی خرمشهر، استادیار گروه بیولوژی دریا و معاونت آموزشی فاطمه موجودی دانشگاه علوم و فنون دریایی خرمشهر، کارشناسی ارشد بیولوژی دریا گرایش آلودگی دریا حسین ذوالقرنین دانشگاه علوم و فنون دریایی خرمشهر، استادیار. بیوتکنولوژی،گروه بیولوژی دریا،

most of poly aromatic hydrocarbons are stable in marine environment and don’t degrade easily. if they accede to the aquatic animals bodies, they will accumulate in their fat tissues. the toxic effects of these compounds are consisting of carcinogenic, mutagenic and germinal tribulation. hence present study was done with purpose of isolation and identification of naphthalene degrading bacteria a...

Background & Aims of the Study: Azo dyes are employed in industrial processes such as textile industry to create large quantities of colored sewages that have organic and non-organic materials. So, remediation of them is essential. In this project, degradation and mineralization of Acid red 14 (AR14) that is a mono Azo dye and widely used in the textile industries was investi...

Background & Aims of the Study: 4-Nitrotoluene (4NT) is a toxic, resistant, and carcinogenic pollutant. The current study aimed to investigate the degradation and mineralization of 4NT regarded as one of the components of petrochemical wastewater using MnO2/Clinoptilolite (CP)/O3 process. The present study also examined the effect of several operational parameters. Materials and Methods:  S...

Journal: :international journal of environmental research 0

investigating urban environmental conditions, informs us about the unsustainability and excessivedegradation of ecological context, which result in rising environmental concerns among the society. classifiedinformation about the status and trends of environmental components is needed as a rational tool to help urbansustainable planning and soer reports can help provide such information. prepari...

Journal: :مدیریت اراضی 0
رضا سکوتی اسکوئی دانشیار مرکز تحقیقات کشاورزی و منابع طبیعی آذربایجانغربی. سمیه غلام آزاد کارشناس ارشد خاکشناسی. نادر قائمیان هیئت علمی مرکز تحقیقات کشاورزی و منابع طبیعی آذربایجانغربی.

soil degradation means lose of soil quality which usually is caused by improper use of land by human. decline of soil quality includes lose of physical, chemical and biological properties of soil. this study aimed to identify and assess the quality of soil and land, to determine the type of land degradation and estimates their severity based on completed forms gathered field data and mapping th...

Journal: :international journal of environmental research 2014
s. jilani m.a. khan

in pakistan besides pesticide contamination from agricultural field, the manufacturing industriesare also contributing relatively high quantities of toxic pesticides into the environment. these pesticides maybe toxic, mutagenic or carginogenic and may be bioaccumulated or biomagnified by the biota. because ofpersistent nature of pesticides, its removal from environmental system become difficult...

This article presents the key insights about the environment and security links in the context of the Persian Gulf region. This research paper focuses on the challenge of finding a balance among development, armed conflicts and environmental degradation in the Persian Gulf region. Environmental security challenges are human security, sustainable development and regional cooperation in the Persi...

Journal: :Microbiological reviews 1990
J G Leahy R R Colwell

The ecology of hydrocarbon degradation by microbial populations in the natural environment is reviewed, emphasizing the physical, chemical, and biological factors that contribute to the biodegradation of petroleum and individual hydrocarbons. Rates of biodegradation depend greatly on the composition, state, and concentration of the oil or hydrocarbons, with dispersion and emulsification enhanci...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید