We present an approach for identifying groundwater discharge chemistry and quantifying spatially distributed groundwater discharge into rivers based on longitudinal synoptic sampling and flow gauging of a river. The method is demonstrated using a 450 km reach of a tropical river in Australia. Results obtained from sampling for environmental tracers, major ions, and selected trace element chemis...

Peroxynitrite is an important chemical in the human immune system, which has high biocidal activity and can resist invasion of pathogens. Currently, vitro generation peroxynitrite faces major technological challenges, especially for gas-phase production, requires low-pressure conditions. Here, we report method how to generate at atmospheric pressure using dielectric barrier discharge. Results s...

The term “pollutant emergent” refers to any type of contaminant originated from previously undetected or products that were not problematized in health and environment [1]. In this group of pollutants has a product for veterinary use, personal care products, and pesticides. The pharmaceuticals in the aquatic environment should be highlighted by reaching the environment through discharges or exc...

To explore the feasible treatment alternatives for organic contaminant, especially organic arsenic species in the landfill gas (LFG) condensate, a variety of treatment approaches were examined and evaluated in this study. Biological degradation, conventional and advanced oxidation, and physical absorption showed limited effectiveness to convert the methylated arsenic to inorganic arsenic. Rever...

Recent research has indicated that submarine groundwater discharge (SGWD) is a significant component of the hydrologic cycle in coastal plain regions, and that discharged groundwater can be contaminated with nutrients and pesticides. Although discharge has been measured directly on a local level, a convenient method for determining the spatial distribution of SGWD on a regional scale using read...

Diffusion and dispersion in Choba Creek were monitored using modeling simulation under the influence of velocity. The study process arsenic deposition at various discharge stations, where contaminant was observed depositing different levels concentration. This implies that quality water creek has deposited as a substance environment, application monitoring diffusion rate are based on heterogene...

The Persian Gulf is an important economic and geo-political region. Owing to its oil and gas resources, it is one of the busiest waterways in the world. There are many operating oil wells in the northern part of the Persian Gulf . As a result, the risk of contaminant dispersion is high. The deliberate discharge of 6.3 million barrels of crude oil during the 1991 war against Kuwait in this regio...

Instantaneous (discrete) and time-integrated (composed) samples were collected during a 19-week period in a watershed impacted by discontinuous discharges from local tanneries (Carpathians Mountains, Poland). Existence of the impoundment reservoir in this watershed allowed investigation of its role in chromium transport. In collected samples, dissolved and particulate chromium concentrations we...