AhR-MEDIATED ACTIVITY OF HUMIC SUBSTANCES AND THEIR PHOTO-DEGRADATION PRODUCTS

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F07%3A00029090" target="_blank" >RIV/00216224:14310/07:00029090 - isvavai.cz</a>

Result on the web

—

DOI - Digital Object Identifier

—

Result language

čeština

Original language name

AhR-ZPROSTŘEDKOVANÁ AKTIVITA HUMINOVÝCH LÁTEK A JEJICH FOTODEGRADAČNÍCH PRODUKTŮ

Original language description

Humic substances (HS) are ubiquitous in the environment - they constitute the major components of dissolved organic matter in waters and the major part of materials that comprise soil organic matter. However, some studies indicate that HS can induce a direct adverse effect on human health and hormone-like effects on fish, amphibians and invertebrates. HS molecules contain number of aromatic rings and conjugated double bonds - the so called chromophores. That implies irradiation of dissolved HS can leadto a series of photochemical reactions which can act on the HS itself, or on other substances present in aquatic environment along with HS such as e.g. xenobiotics. In this contribution, we summarize our new findings on alteration of AhR-mediated activity of irradiated HS under the lab conditions. Additionally, supposed mechanisms of observed irradiation-induced decrease in AhR-mediated activity of dissolved HS are discussed.

Czech name

AhR-ZPROSTŘEDKOVANÁ AKTIVITA HUMINOVÝCH LÁTEK A JEJICH FOTODEGRADAČNÍCH PRODUKTŮ

Czech description

Humic substances (HS) are ubiquitous in the environment - they constitute the major components of dissolved organic matter in waters and the major part of materials that comprise soil organic matter. However, some studies indicate that HS can induce a direct adverse effect on human health and hormone-like effects on fish, amphibians and invertebrates. HS molecules contain number of aromatic rings and conjugated double bonds - the so called chromophores. That implies irradiation of dissolved HS can leadto a series of photochemical reactions which can act on the HS itself, or on other substances present in aquatic environment along with HS such as e.g. xenobiotics. In this contribution, we summarize our new findings on alteration of AhR-mediated activity of irradiated HS under the lab conditions. Additionally, supposed mechanisms of observed irradiation-induced decrease in AhR-mediated activity of dissolved HS are discussed.

Type

D - Article in proceedings

CEP classification

DJ - Pollution and water control

OECD FORD branch

—

Project

<a href="/en/project/GP525%2F05%2FP160" target="_blank" >GP525/05/P160: In vitro models for study of endocrine disruption - effects of traditional and new types of persistent organic pollutants</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2007

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Bulletin VÚRH Vodňany

ISBN

—

ISSN

0007-389X

e-ISSN

—

Number of pages

6

Pages from-to

—

Publisher name

Jihočeská univerzita v Českých Budějovicích, Výzkumný ústav rybářský a hydrobiologický ve Vodňanech

Place of publication

Vodňany

Event location

Vodňany

Event date

Jun 18, 2007

Type of event by nationality

CST - Celostátní akce

UT code for WoS article

—