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Retour sur l’article « Surveillance de la qualité des sédiments»
Abstract
L’interprétation des résultats d’analyses chimiques d’échantillons environnementaux de sédiments nécessite l’accès à des valeurs de référence ou à des critères de qualité consensuels. Suite à notre publication dans Aqua & Gas 4/2012, des demandes de précisions nous ont été adressées concernant les critères de qualité des sédiments pour les polychlorobiphényles (PCBs). Ces pré- cisions sont données dans cet article, avec un tableau revisé qui résume les concentrations seuils d’effet TEC et les concentrations d’effet probable PEC pour huit métaux, la somme des PCBs ainsi que celle des hydrocarbures aromatiques polycycliques (HAPs) pour les sédiments d’eau douce.
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Related concepts (6)
Le Chatelier's principle
Le Chatelier's principle (pronounced UKlə_ʃæˈtɛljeɪ or USˈʃɑːtəljeɪ), also called Chatelier's principle (or the Equilibrium Law), is a principle of chemistry used to predict the effect of a change in conditions on chemical equilibria. The principle is named after French chemist Henry Louis Le Chatelier, and sometimes also credited to Karl Ferdinand Braun, who discovered it independently.
Antoine Lavoisier
Antoine-Laurent de Lavoisier (UKlæˈvwʌzieɪ , USləˈvwɑːzieɪ ; ɑ̃twan lɔʁɑ̃ də lavwazje; 26 August 1743 8 May 1794), also Antoine Lavoisier after the French Revolution, was a French nobleman and chemist who was central to the 18th-century chemical revolution and who had a large influence on both the history of chemistry and the history of biology. It is generally accepted that Lavoisier's great accomplishments in chemistry stem largely from his changing the science from a qualitative to a quantitative one.
Polychlorinated biphenyl
Polychlorinated biphenyls (PCBs) are highly carcinogenic chemical compounds, formerly used in industrial and consumer products, whose production was banned in the United States by the Toxic Substances Control Act in 1976 and internationally by the Stockholm Convention on Persistent Organic Pollutants in 2001. PCBs are organic chlorine compounds with the formula C12H10−xClx; they were once widely used in the manufacture of carbonless copy paper, as heat transfer fluids, and as dielectric and coolant fluids for electrical equipment.