Search results for "Biomonitor"

Quantification of cadmium-induced metallothionein in crustaceans by the silver-saturation method

1995

Metallothionein (MT) has been proposed as a specific biochemical probe for metal exposure of aquatic organisms. It is recognized that its usefulness as a monitoring tool depends on the full understanding of its function and on the possibility of measuring its concentration in tissues. Therefore the study of MT in crustaceans is interesting from two different points of view: the need to understand mechanisms associated with the toxicology of metals, and the potential use of this protein for monitoring metal-contamined environments. Several methods have been developed for quantitative measurements of MT in biological samples. Immunochemical and electrochemical procedures are reliable techniqu…

Lead isotopes in biological matrices to identify potential sources of contamination: the case study of Sulcis-Iglesiente district (SW Sardinia, Italy)

2017

The Sulcis-Iglesiente district has been, until recently, one of the most important Italian polymetallic mining areas for the extraction of lead. Located close to the town of Iglesias, the San Giorgio area constitutes a dramatic example of an area affected by intense mine pollution. Epidemiological studies regarding the mining areas of Sardinia have indicated the Sulcis-Iglesiente as a typical example of how dispersion of metal can affect human health. We have chosen this peculiar area to evaluate whether a supposed prolonged and continuous exposure to high lead concentration can be detected by means of a bio-monitoring procedure that uses the analysis of human scalp hair and the measurement…

Risk assessment of Bundeswehr (German Federal Armed Forces) permethrin-impregnated battle dress uniforms (BDU).

2007

In an age when vector-borne diseases are emerging worldwide, personal protective measures are essential for shielding soldiers and other exposed persons from arthropod attack. The development of permethrin-impregnated clothing has been one recent advance in protecting persons at-risk. However, to date risk assessment has not been performed related to wearing permethrin-impregnated clothing over longer time periods. Therefore, this paper describes relevant toxicological aspects of permethrin and estimates the extent of dermal permethrin uptake by soldiers wearing impregnated uniforms by determining urine metabolites of permethrin. The exposure monitoring conducted in wearers of untreated uni…

Modelling of mercury emissions from large solid fuel combustion and biomonitoring in Cz-Pl border region

2016

Tightening of norms for air protection leads to a development of new and significantly more effective techniques for removing particulate matter, SOx and NOx from flue gas which originates from large solid fuel combustion. Recently, it has been found that combinations of these environmental technologies can also lead to the reduction of mercury emissions from coal power plants. Now the greatest attention is paid especially to the coal power plant in Opatovice nad Labem, close to Hradec Kralove. Its system for flue gas dedusting was replaced by a modern type of cloth fabric filter with the highest particle separation efficiency which belongs to the category of BAT. Using this technology, tog…

Biomonitoring aktywny z zastosowaniem mchów w pobliżu Miasteczka Śląskiego

2017

Celem przeprowadzonych badań była ocena przyrostu stężeń wybranych analitów w próbkach mchów. Badania biomonitoringowe zanieczyszczenia aerozolu atmosferycznego prowadzono na terenie miejscowości Miasteczko Śląskie (województwo śląskie). Potencjalnym emitorem zanieczyszczeń na obszarze badań jest Huta Cynku „Miasteczko Śląskie”. Zastosowano metodę biomontoringu aktywnego (metoda woreczkowa), wykorzystując mchy z gatunku Pleurozium schreberi (rokietnik pospolity). Metale ciężkie w próbkach mchów oznaczono za pomocą absorpcyjnej spektrometrii atomowej (AAS). Wyniki badań zinterpretowano, wyznaczając współczynnik akumulacji względnej (RAF). Podczas prowadzenia eksperymentu uwzględniono odległo…

Wpływ warunków prowadzenia eksperymentu na wyniki badań biomonitoringowych z zastosowaniem mchów

2017

Comparison of Exposure Techniques and Vitality Assessment of Mosses in Active Biomonitoring for Their Suitability in Assessing Heavy Metal Pollution …

2021

The most widespread and used technique is the moss-bag method in active biomonitoring of air pollution using mosses. In the literature, we can find various studies on the standardization of this method, including attempts to standardize treatments and preparation procedures for their universal application. Few works comprehensively focus on other methods or compare other techniques used in active biomonitoring with mosses, especially including measurements of their vital parameters. Our experiment aimed to assess air pollution by selected heavy metals (Cu, Zn, Cd, Pb, Mn, Fe, and Hg) using three moss species (Pleurozium schreberi, Sphagnum fallax, and Dicranum polysetum) during a 12-week ex…

Active biomonitoring (moss-bags) of volcanic emissions on Mt. Etna

2011

Biomonitoring may be defined as the use of organisms and biomaterials (biomonitors) to obtain information on certain characteristics of a particular medium (atmosphere, hydrosphere etc.). In particular, mosses accumulate large amounts of trace metals, making them good bioaccumulators to estimate atmospheric pollution. The moss-bags technique, introduced in the early 1970’, has become very popular. Such active biomonitoring technique is particularly useful in highly polluted areas and has been extensively used in industrial and/or urban areas to examine deposition patterns and to recognize point sources of pollution. The main objective of this study, which represents the first application of…

Volcanic gas and particles monitoring using moss-bags on Vulcano Island, Italy

2013

Passive Biomonitoring of Influence of the Communication Traffic on Deposition the Pollution Near the Motorway

2019

W pracy przedstawiono wyniki badań, przeprowadzonych w ramach biomonitoringu pasywnego, polegających na ocenie depozycji metali ciężkich (Ni, Cu, Zn, Cd, Hg i Pb), wzbogacających lokalnie aerozol atmosferyczny w skutek ruchu komunikacyjnego na autostradzie A4 w pobliżu miejscowości Prószków (województwo opolskie). Do badań wykorzystano próbki mchów Pleurozium schreberi, które pobrano w pobliżu autostrady na dystansie 3000 m i w odległości od niej do 120 metrów. Przy wyborze punktów pomiarowych uwzględniono częstotliwość kierunku wiatru na tym terenie. Metale ciężkie oznaczono metodą absorpcyjnej spektometrii atomowej ze wzbudzaniem w płomieniu (F-AAS). Wyniki badań wskazują na to, iż ruch k…