Tributyltin (TBT) compounds are organic derivatives of tetravalent tin. They are characterized by the presence of covalent bonds between carbon atoms and a tin atom and have the general formula (n-C4H9)3Sn-X (where X ...

Beryllium is a steel-grey, brittle metal, existing naturally only as the 9Be isotope. Its compounds are divalent. Beryllium has several unique properties. It is the lightest of all solid and chemically-stable substances, ...

2-Nitropropane (2-NP) is a colourless, oily liquid with a mild odour. It is flammable, only moderately volatile, and stable under ordinary conditions. It is only slightly soluble in water but miscible with many organic ...

Carbaryl is the common name for the carbamic acid derivative 1-naphthyl N-methylcarbamate. The technical grade product is a white crystalline solid, with a low volatility; it is poorly soluble in water, which is stable ...

This monograph has been prepared on behalf of the Central Unit of the International Programme on Chemical Safety (IPCS) and its aim is to provide an update of the principles utilized by the WHO Expert Group on Pesticide ...

2,4-D is a selective herbicide which kills broad-leaved plants but not grasses or conifers. Its chemical structure is a modification of a naturally occurring plant hormone. 2,4-D is available as the free acid but is ...

Ochratoxins are produced by several species of the fungal genera Aspergillus and Penicillium. These fungi are ubiquitous and the potential for the contamination of foodstuffs and animal feed is widespread. Ochratoxin A, ...

Polychlorinated dibenzo—p—dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) are two series of tricyclic aromatic compounds with similar chemical and physical properties; they are ubiquitous in the environment. They ...

The first part of this project, dealing with in vitro studies, was published in 1985 (Ashby et al., 1985) and was summarized in Environmental Health Criteria 47 (WHO, 1985). The second part, which is the subject of this ...

This document provides information on the physical aspects of electromagnetic radiation in the optical spectrum, within the wavelength range of 100 mm - l mm. Optical radiation includes ultraviolet radiation (UVR) from ...