luorescence spectroscopy was used to evaluate the influence of untreated wastewaters on Arges river water quality. Samples collected from the Lower Basin of the Arges River were analyzed using laser induced fluorescence spectroscopy (LIFS) and excitation-emission matrix (EEM) fluorescence. Specific fluorescence fingerprints for Arges River water were shown. Using LIFS the influence of the wastewater discharged from urban areas and nearby farms was

Many up-to-date optical techniques have been developed and applied recently in clinical practice for obtaining qualitatively and quantitatively new data from the investigated lesions. Due to their high sensitivity in detection of small changes, these techniques are widely used for detection of early changes in biological tissues. Light-induced fluorescence spectroscopy (LIFS) is one of the most promising techniques for early detection of cutaneous

Continuous monitoring of dissolved organic matter (DOM) character and concentration at hourly resolution is rare, despite the importance of analysing organic matter variability a high-temporal resolution to evaluate river carbon budgeting, river water health by detecting episodic pollution and to determine short-term variations in chemical and ecological function. The authors report a 2-week experiment performed on DOM sampled from Bournbrook, Birmingham,

Preliminary investigation of contaminated soil in the surrounding area of a petroleum tank has been carried out based on fluorescence techniques: excitation emission matrix (EEM) and synchronous fluorescence scan (SFS). A fluorescence fingerprints library containing several EEM and SFS maps for various dilutions of Romanian crude oil in methanol, was used to confirm the identity of the soil contaminant. A calibration curve was created to estimate

Organic matter is ubiquitous in every type of aquatic system and due to the influence that it has on their ecological health, can be used as a useful water quality indicator. Fluorescence spectroscopy has been efficiently used in the past decades to determine and characterize organic matter, and its link to function and chemical water quality. In this paper, fluorescence fingerprints are presented in order to evidence the anthropogenic influence

Context: Optical coherence tomography (OCT) is an emergent imaging technique, based on the interference of infrared radiation and living tissues, that allows the in vivo visualization of the skin structures, at high resolution and up to 1.6 mm depth. As such, there is mounting evidence that OCT may be an interesting technique for the diagnosis of skin diseases, including the non-invasive early detection of cutaneous tumors. Objective: We aimed to

Bucharest is the capital city and also one of the largest cities in Romania. It disposes of natural and artificial lakes, arranged for different leisure activities and some of them even for bathing. Monitoring and maintaining the quality of lentic ecosystems is important from both an economical and environmental point of view. Several lake water samples were collected from Bucharest city area. The water quality of these lakes was evaluated using,

Fluorescence spectroscopy was used to evaluate the anthropogenic influence on rivers crossing Sofia. Specific fluorescence fingerprints for different sampling locations on Dragalevska, Perlovska and Vladaiska rivers were compared. The increase in pollution downstream due to the continuous contribution of surface runoff and the presence of protein-like fluorescence peak coming from old surface runoff waters were shown. The fluorescence and biological

Fluorescence data obtained by laser excitation at 266 nm were used for the first time to determine fluorescence properties of household and chicken farm discharges. Two fluorescence indices were applied: a modified humification index (HIX) and a new one, as tyrosine:tryptophan ratio (Tyr/Trp). HIX described very well the degree of contamination of the water system, while Tyr/Trp was useful in discriminating between the types of contaminants-household

Real-time fluorescence monitoring has been mostly performed in marine systems, with little progress being made in the application of fluorescence excitation–emission matrix (EEM) spectroscopy, especially for freshwater monitoring. This paper presents a two weeks experiment where real-time fluorescence EEM data have been obtained for Bourn Brook, Birmingham, UK, using an in-situ fibre-optic probe. Fluorescence EEMs were measured every 3 min for