نتایج جستجو برای: microbial pollution

تعداد نتایج: 180437  

Introduction & Purpose Fecal coliforms and Escherichia coli have been conventionally used as indicators of microbial pollution of drinking water. The European Directive on drinking water quality has included Clostridium perfringens as one of the microbiological parameters to be determined in control of the water quality for human consumption. This study was carried out to evaluate the efficien...

2009
Roland Sturm

The conference discussed public goods and externalities created as byproducts of the food system, including local development, obesity, air and water pollution, climate change, antibiotic resistance, and other public health issues. Multifunctionality is a framework that integrates these diverse issues and has been influential in international policy. This commentary focuses on arguably the most...

2017
Caroline Pandin Dominique Le Coq Alexis Canette Stéphane Aymerich Romain Briandet

Almost one-third of crop yields are lost every year due to microbial alterations and diseases. The main control strategy to limit these losses is the use of an array of chemicals active against spoilage and unwanted pathogenic microorganisms. Their massive use has led to extensive environmental pollution, human poisoning and a variety of diseases. An emerging alternative to this chemical approa...

Journal: :Environmental microbiology 2017
Shane J K Hussey Joanne Purves Natalie Allcock Vitor E Fernandes Paul S Monks Julian M Ketley Peter W Andrew Julie A Morrissey

Air pollution is the world's largest single environmental health risk (WHO). Particulate matter such as black carbon is one of the main components of air pollution. The effects of particulate matter on human health are well established however the effects on bacteria, organisms central to ecosystems in humans and in the natural environment, are poorly understood. We report here for the first ti...

2016
Orissa M Moulton Mark A Altabet J Michael Beman Linda A Deegan Javier Lloret Meaghan K Lyons James A Nelson Catherine A Pfister

N (N) is often a limiting nutrient in coastal marine systems, but human activities have doubled the availability of this nutrient over the past century, particularly via fertilizer production to sustain increases in agriculture (Galloway et al. 1995). In coastal ecosystems receiving anthropogenic N, excess N can fuel harmful algal blooms, and the decomposition of organic (dead algal) material v...

2016
Bhagwan N. Rekadwad Chandrahaysa N. Khobragade

Survey data and wet lab reports presented in this paper were collected from Western coastlines of India from Goan beaches. Oil polluted areas were captured on camera as evidence for oil and tar pollution. Several microorganisms showing diverse characteristics such as pigment producers, salt tolerant and hydrocarbon resistance were isolated and cultured in the laboratory. The dataset presented i...

Firouzeh, Nima, Ghorbanpour, Reza, Asadzadeh, Seyedeh Nastaran , Hashemi, Mitra , Hekmat Ara, Zahra , Sobhani, Khashayar ,

Introduction: Dental units are among the equipment that flows through the dental application, and due to the durability of water and the probability of forming the biofilm. They can have a high microbial load. It is important to investigate this pollution, which should be frequently investigated due to the incidence of dangerous infections in people with weakness of the defense system, pollutio...

2018
Linda Wegley Kelly Andreas F Haas Craig E Nelson

Over the past 2 decades, molecular techniques have established the critical role of both free-living and host-associated microbial partnerships in the environment. Advancing research to link microbial community dynamics simultaneously to host physiology and ecosystem biogeochemistry is required to broaden our understanding of the ecological roles of environmental microbes. Studies on coral reef...

Journal: :محیط شناسی 0
سمائه نمازی کارشناس ارشد بیولوژی و بیوتکنولوژی خاک، دانشکدة کشاورزی، دانشگاه شهرکرد فایز رئیسی دانشیار گروه خاک شناسی، دانشکدة کشاورزی، دانشگاه شهرکرد شجاع قربانی دشتکی استادیار گروه خاک شناسی، دانشکدة کشاورزی، دانشگاه شهرکرد

toxicity and damages caused by soil pollution with crude oil and its microbial responses may depend on nitrogen bioavailability and its form. so, the main objective of this study is to investigate the effects of crude oil and various forms of n consumption on c mineralization and microbial biomass. the experiment was done in the form of factorial (3×4) design using crd (completely randomized de...

2008
J. Černohlávková J. Hofman T. Bartoš M. Sáňka P. Anděl

in this study, the effects of road salting on the quality of forest soils near the road were monitored in the Krkonoše Mountains (Czech republic). Physical, chemical properties and microbial parameters of soils were determined and the toxic potentials of soil water extracts were evaluated using the bacterial tests (Microtox and Pseudomonas putida growth inhibition test). increased concentration...

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