Environment

High Throughput Profiling of Antibiotic Resistance Genes in Urban Park Soils with Reclaimed Water Irrigation
Reclaimed water irrigation (RWI) in urban environments is becoming popular, due to rapid urbanization and water shortage. The continuous release of residual antibiotics and antibiotic resistance genes (ARGs) from reclaimed water could result in the dissemination of ARGs in the downstream environment. This study provides a comprehensive profile of ARGs in park soils exposed to RWI through a high...


Modeling of Simultaneous Anaerobic Methane and Ammonium Oxidation in a Membrane Biofilm Reactor
Nitrogen removal by using the synergy of denitrifying anaerobic methane oxidation (DAMO) and anaerobic ammonium oxidation (Anammox) microorganisms in a membrane biofilm reactor (MBfR) has previously been demonstrated experimentally. In this work, a mathematical model is developed to describe the simultaneous anaerobic methane and ammonium oxidation by DAMO and Anammox microorganisms in an MBfR ...
Cancer incidence among 41 000 offshore oil industry workers
Cancer incidence among Norwegian offshore oil industry workers has been studied in two equally sized cohorts of 28000 workers, in a survey-based cohort study followed 1999–2005 and a register-based cohort study followed 1981–2003. To determine the overall cancer incidence in both cohorts merged, with an extended follow-up. The merged cohort yielded 41140 individuals followed for can...


Enantioselective toxicity and degradation of the chiral insecticide fipronil in Scenedesmus obliguus suspension system
Fipronil is an effective insecticide, but it present high toxic effect to non-target aquatic organisms. The enantioselective toxicity and degradation of fipronil enantiomers in the freshwater algae Scenedesmus obliguus suspension were studied in the present study. There was great difference in the acute toxicity of the enantiomers to Scenedesmus obliguus with 72 h median effective concentrati...
Sublethal effects of the beta-blocker sotalol at environmentally relevant concentrations on the New Zealand mud-snail Potamopyrgus antipodarum
Monitoring sublethal effects of pharmaceuticals on non-target species in aquatic environments has become an important topic in ecotoxicology, yet there are few studies concerning the effects of beta-blockers on aquatic organisms. We investigated the effects of the beta-blocker sotalol at three environmentally relevant concentrations on life-history traits of the New Zealand mud-snail Potamopyrg...


Methyl mercury and stable isotopes of nitrogen reveal that a terrestrial spider has a diet of emergent aquatic insects
Terrestrial spiders transfer methyl mercury (MeHg) to terrestrial consumers like birds but how spiders become contaminated with MeHg is not well understood. In the present study, we used stable isotopes of nitrogen in combination with MeHg to determine the source of MeHg to terrestrial long-jawed orb weaver spiders (Tetragnatha sp). We collected spiders and a variety of other aquatic and terres...
Diet change—a solution to reduce water use?
Water and land resources are under increasing pressure in many parts of the globe. Diet change has been suggested as a measure to contribute to adequate food security for the growing population. This paper assesses the impact of diet change on the blue and green water footprints of food consumption. We first compare the water consumption of the current diets with that of a scenario where dietar...

Disaster Risks and Preparedness: Effects of Petrochemical Hazards on the Environment in Saudi Arabia
The impacts from disaster risks are extremely devastating and significantly affect people, environment and business organisations. This research explore disaster risks and preparedness especially the impacts of petrochemical hazards on the environment in Saudi Arabia. While the impacts vary considerably across different affected stakeholders, the environment remains the principal benefactor of ...
Water Quality Assessment of the Southwestern and Coastal River Systems of Ghana
Investigation into physico-chemical water quality and dissolved heavy metal contents of major rivers from the Southwestern and Coastal River Systems of Ghana from 19 stations was undertaken from 2007 to 2010The waters are used in their raw states for domestic purposes including drinking in most communities in the study area. The concentrations of the various parameters were assessed in relation...

Tank Model to See The Effect of Land Use Changes on Runoff, Infiltration and Groundwater in Sub
Water supply is closely related to geographical and climatic factors on the watershed area. Tank model is one of the hydrological models used to analyze the characteristics of river flow using the data of rainfall and climate. This study was aimed  to analyze the flow rate by using a tank model, which can describe the magnitude of hydrological processes, namely runoff rate, infiltration capaci...
An Approach in Evaluating of Flexible Pavement In Permanent Deformation OF Paved AND Unpaved Roads Over Sand Dunes Subgrade Under Repeated Loads
Thickness of flexible pavement play very important factor in cost of construction of road ,in this study effect of change thickness of pavement on rutting of road is investigated . Two approaches are adopted; the first is the laboratory tests through simulation of three layers of paved road and two layers for unpaved road, using a steel box with dimensions of 600mm length 500mm width and 400mm ...

Investigating Alternatives To Diesel In Oil Based Drilling Mud Formulations Used in the Oil Industry
The investigation of jatropha and groundnut oils as alternatives to diesel in oil based mud (OBM) formulations reveal comparable performance characteristics to that of diesel. The viscosity values of the mud samples from the three oils varied considerably. At the same viscometer dial speed of 600 RPM and temperature of 60oC, the viscosities were 155, 135 and 50 centi poises (cP) for jatropha, g...
Rain Water Harvesting for Enhanced Household Water, Food and Nutritional Security: Case Study of Kitui West, Lower Yatta and Matinyani Districts, Kenya
In semi-arid areas of Kenya, over dependence on agriculture, low and unreliable rainfall and high livestock numbers, justify the considerations of rainwater harvesting for agricultural production. A step by step is now taken by the respective government agencies and non-governmental organizations to promote rainwater harvesting, as well as promoting it to the public. This study conducted a focu...
Energy Supply and Climate Change in Nigeria
The energy industry has been identified as one of the sectors most vulnerable to the impact of climate change. In the past years, government had been making a lot of effort at reforming the energy sector and this study attempted to investigate the extent to which the energy sector will be affected in the face of the threats presented by a changing climate. The study seeks to examine the impact ...
Evaluation of Urban Forestry and Housing Patterns in Awka Metropolis of Anambra State, Nigeria
This study evaluated urban forestry and housing patterns in Awka metropolis of Anambra State in Nigeria, with the aim of establishing the trend of housing and urban forestry / urban greening in the study area over a period of ten years (2001-2010) and to suggest ways of improving urban agriculture for a better environmental quality in Awka and other cities with high rate of developmental projec...