toxic agent concentration
61Freshwater environmental quality parameters — are the natural and man made chemical, biological and microbiological characteristics of rivers, lakes and ground waters, the ways they are measured and the ways that they change. The values or concentrations attributed to such parameters can be… …
62Cyanotoxine — Les cyanotoxines sont des métabolites synthétisés par les cyanobactéries. Elles peuvent être regroupées en fonction de leur structure chimique en trois classes, soit les peptides cycliques, les alcaloïdes et les lipopolysaccharides. Il est aussi… …
63environmental works — ▪ civil engineering Introduction infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations …
64renal system disease — Introduction any of the diseases or disorders that affect the human excretory system. They include benign and malignant tumours, infections and inflammations, and obstruction by calculi. Diseases can have an impact on the elimination of… …
65Ozone — For other uses, see Ozone (disambiguation). Ozone …
66Depleted uranium — The DU penetrator of a 30 mm round[1] Depleted uranium (DU; also referred to in the past as Q metal, depletalloy, or D 38) is uranium with a lower content of the fissile isotope U 235 than natural uranium (natural uranium is about 99.27% uranium… …
67Chlorpromazine — Systematic (IUPAC) name …
68rare-earth element — /rair errth /, Chem. any of a group of closely related metallic elements, comprising the lanthanides, scandium, and yttrium, that are chemically similar by virtue of having the same number of valence electrons. Also called rare earth metal. [1955 …
69Vanadium — (IPAEng|vəˈneɪdiəm) is a chemical element that has the symbol V and atomic number 23. A soft and ductile element, vanadium naturally occurs in about 65 different minerals and is used mainly to produce certain alloys. It is one of the 596 elements …
70Lead poisoning — Classification and external resources An X ray demonstrating the characteristic finding of lead poisoning, dense metaphyseal lines. ICD 10 T …
